1296 files changed, 29665 insertions, 22890 deletions

diff --git a/Documentation/ABI/stable/sysfs-bus-vmbus b/Documentation/ABI/stable/sysfs-bus-vmbus
index 636e938..5d0125f 100644
--- a/Documentation/ABI/stable/sysfs-bus-vmbus
+++ b/Documentation/ABI/stable/sysfs-bus-vmbus
@@ -27,3 +27,17 @@ Description:	The mapping of which primary/sub channels are bound to which
 		Virtual Processors.
 		Format: <channel's child_relid:the bound cpu's number>
 Users:		tools/hv/lsvmbus
+
+What:		/sys/bus/vmbus/devices/vmbus_*/device
+Date:		Dec. 2015
+KernelVersion:	4.5
+Contact:	K. Y. Srinivasan <kys@microsoft.com>
+Description:	The 16 bit device ID of the device
+Users:		tools/hv/lsvmbus and user level RDMA libraries
+
+What:		/sys/bus/vmbus/devices/vmbus_*/vendor
+Date:		Dec. 2015
+KernelVersion:	4.5
+Contact:	K. Y. Srinivasan <kys@microsoft.com>
+Description:	The 16 bit vendor ID of the device
+Users:		tools/hv/lsvmbus and user level RDMA libraries
diff --git a/Documentation/cgroup-v2.txt b/Documentation/cgroup-v2.txt
index e8d25e7..ff49cf9 100644
--- a/Documentation/cgroup-v2.txt
+++ b/Documentation/cgroup-v2.txt
@@ -7,7 +7,7 @@ This is the authoritative documentation on the design, interface and
 conventions of cgroup v2.  It describes all userland-visible aspects
 of cgroup including core and specific controller behaviors.  All
 future changes must be reflected in this document.  Documentation for
-v1 is available under Documentation/cgroup-legacy/.
+v1 is available under Documentation/cgroup-v1/.
 
 CONTENTS
 
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3036-cru.txt b/Documentation/devicetree/bindings/clock/rockchip,rk3036-cru.txt
index ace0599..20df350 100644
--- a/Documentation/devicetree/bindings/clock/rockchip,rk3036-cru.txt
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3036-cru.txt
@@ -30,7 +30,7 @@ that they are defined using standard clock bindings with following
 clock-output-names:
  - "xin24m" - crystal input - required,
  - "ext_i2s" - external I2S clock - optional,
- - "ext_gmac" - external GMAC clock - optional
+ - "rmii_clkin" - external EMAC clock - optional
 
 Example: Clock controller node:
 
diff --git a/Documentation/devicetree/bindings/goldfish/pipe.txt b/Documentation/devicetree/bindings/goldfish/pipe.txt
new file mode 100644
index 0000000..e417a31
--- /dev/null
+++ b/Documentation/devicetree/bindings/goldfish/pipe.txt
@@ -0,0 +1,17 @@
+Android Goldfish QEMU Pipe
+
+Andorid pipe virtual device generated by android emulator.
+
+Required properties:
+
+- compatible : should contain "google,android-pipe" to match emulator
+- reg        : <registers mapping>
+- interrupts : <interrupt mapping>
+
+Example:
+
+	android_pipe@a010000 {
+		compatible = "google,android-pipe";
+		reg = <ff018000 0x2000>;
+		interrupts = <0x12>;
+	};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
index 7803e77..007a5b4 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
@@ -24,9 +24,8 @@ Main node required properties:
 		1 = edge triggered
 		4 = level triggered
 
-  Cells 4 and beyond are reserved for future use. When the 1st cell
-  has a value of 0 or 1, cells 4 and beyond act as padding, and may be
-  ignored. It is recommended that padding cells have a value of 0.
+  Cells 4 and beyond are reserved for future use and must have a value
+  of 0 if present.
 
 - reg : Specifies base physical address(s) and size of the GIC
   registers, in the following order:
diff --git a/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt b/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt
new file mode 100644
index 0000000..a8ebb46
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt
@@ -0,0 +1,25 @@
+EEPROMs (SPI) compatible with Microchip Technology 93xx46 family.
+
+Required properties:
+- compatible : shall be one of:
+    "atmel,at93c46d"
+    "eeprom-93xx46"
+- data-size : number of data bits per word (either 8 or 16)
+
+Optional properties:
+- read-only : parameter-less property which disables writes to the EEPROM
+- select-gpios : if present, specifies the GPIO that will be asserted prior to
+  each access to the EEPROM (e.g. for SPI bus multiplexing)
+
+Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
+apply.  In particular, "reg" and "spi-max-frequency" properties must be given.
+
+Example:
+	eeprom@0 {
+		compatible = "eeprom-93xx46";
+		reg = <0>;
+		spi-max-frequency = <1000000>;
+		spi-cs-high;
+		data-size = <8>;
+		select-gpios = <&gpio4 4 GPIO_ACTIVE_HIGH>;
+	};
diff --git a/Documentation/devicetree/bindings/net/renesas,ravb.txt b/Documentation/devicetree/bindings/net/renesas,ravb.txt
index 81a9f9e..c8ac222 100644
--- a/Documentation/devicetree/bindings/net/renesas,ravb.txt
+++ b/Documentation/devicetree/bindings/net/renesas,ravb.txt
@@ -82,8 +82,8 @@ Example:
 				  "ch16", "ch17", "ch18", "ch19",
 				  "ch20", "ch21", "ch22", "ch23",
 				  "ch24";
-		clocks = <&mstp8_clks R8A7795_CLK_ETHERAVB>;
-		power-domains = <&cpg_clocks>;
+		clocks = <&cpg CPG_MOD 812>;
+		power-domains = <&cpg>;
 		phy-mode = "rgmii-id";
 		phy-handle = <&phy0>;
 
diff --git a/Documentation/devicetree/bindings/nvmem/lpc1857-eeprom.txt b/Documentation/devicetree/bindings/nvmem/lpc1857-eeprom.txt
new file mode 100644
index 0000000..809df68
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/lpc1857-eeprom.txt
@@ -0,0 +1,28 @@
+* NXP LPC18xx EEPROM memory NVMEM driver
+
+Required properties:
+  - compatible: Should be "nxp,lpc1857-eeprom"
+  - reg: Must contain an entry with the physical base address and length
+    for each entry in reg-names.
+  - reg-names: Must include the following entries.
+    - reg: EEPROM registers.
+    - mem: EEPROM address space.
+  - clocks: Must contain an entry for each entry in clock-names.
+  - clock-names: Must include the following entries.
+    - eeprom: EEPROM operating clock.
+  - resets: Should contain a reference to the reset controller asserting
+    the EEPROM in reset.
+  - interrupts: Should contain EEPROM interrupt.
+
+Example:
+
+  eeprom: eeprom@4000e000 {
+    compatible = "nxp,lpc1857-eeprom";
+    reg = <0x4000e000 0x1000>,
+          <0x20040000 0x4000>;
+    reg-names = "reg", "mem";
+    clocks = <&ccu1 CLK_CPU_EEPROM>;
+    clock-names = "eeprom";
+    resets = <&rgu 27>;
+    interrupts = <4>;
+  };
diff --git a/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt b/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt
new file mode 100644
index 0000000..74cf529
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt
@@ -0,0 +1,36 @@
+= Mediatek MTK-EFUSE device tree bindings =
+
+This binding is intended to represent MTK-EFUSE which is found in most Mediatek SOCs.
+
+Required properties:
+- compatible: should be "mediatek,mt8173-efuse" or "mediatek,efuse"
+- reg: Should contain registers location and length
+
+= Data cells =
+Are child nodes of MTK-EFUSE, bindings of which as described in
+bindings/nvmem/nvmem.txt
+
+Example:
+
+	efuse: efuse@10206000 {
+		compatible = "mediatek,mt8173-efuse";
+		reg	   = <0 0x10206000 0 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/* Data cells */
+		thermal_calibration: calib@528 {
+			reg = <0x528 0xc>;
+		};
+	};
+
+= Data consumers =
+Are device nodes which consume nvmem data cells.
+
+For example:
+
+	thermal {
+		...
+		nvmem-cells = <&thermal_calibration>;
+		nvmem-cell-names = "calibration";
+	};
diff --git a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
index 4e8b90e..07a7509 100644
--- a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
+++ b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
@@ -8,6 +8,7 @@ OHCI and EHCI controllers.
 Required properties:
 - compatible: "renesas,pci-r8a7790" for the R8A7790 SoC;
 	      "renesas,pci-r8a7791" for the R8A7791 SoC;
+	      "renesas,pci-r8a7793" for the R8A7793 SoC;
 	      "renesas,pci-r8a7794" for the R8A7794 SoC;
 	      "renesas,pci-rcar-gen2" for a generic R-Car Gen2 compatible device
 
diff --git a/Documentation/devicetree/bindings/pci/rcar-pci.txt b/Documentation/devicetree/bindings/pci/rcar-pci.txt
index 558fe52..6cf9969 100644
--- a/Documentation/devicetree/bindings/pci/rcar-pci.txt
+++ b/Documentation/devicetree/bindings/pci/rcar-pci.txt
@@ -4,6 +4,7 @@ Required properties:
 compatible: "renesas,pcie-r8a7779" for the R8A7779 SoC;
 	    "renesas,pcie-r8a7790" for the R8A7790 SoC;
 	    "renesas,pcie-r8a7791" for the R8A7791 SoC;
+	    "renesas,pcie-r8a7793" for the R8A7793 SoC;
 	    "renesas,pcie-r8a7795" for the R8A7795 SoC;
 	    "renesas,pcie-rcar-gen2" for a generic R-Car Gen2 compatible device.
 
diff --git a/Documentation/devicetree/bindings/regulator/tps65217.txt b/Documentation/devicetree/bindings/regulator/tps65217.txt
index d181096..4f05d20 100644
--- a/Documentation/devicetree/bindings/regulator/tps65217.txt
+++ b/Documentation/devicetree/bindings/regulator/tps65217.txt
@@ -26,11 +26,7 @@ Example:
 		ti,pmic-shutdown-controller;
 
 		regulators {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
 			dcdc1_reg: dcdc1 {
-				reg = <0>;
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <1800000>;
 				regulator-boot-on;
@@ -38,7 +34,6 @@ Example:
 			};
 
 			dcdc2_reg: dcdc2 {
-				reg = <1>;
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
@@ -46,7 +41,6 @@ Example:
 			};
 
 			dcdc3_reg: dcc3 {
-				reg = <2>;
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <1500000>;
 				regulator-boot-on;
@@ -54,7 +48,6 @@ Example:
 			};
 
 			ldo1_reg: ldo1 {
-				reg = <3>;
 				regulator-min-microvolt = <1000000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
@@ -62,7 +55,6 @@ Example:
 			};
 
 			ldo2_reg: ldo2 {
-				reg = <4>;
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
@@ -70,7 +62,6 @@ Example:
 			};
 
 			ldo3_reg: ldo3 {
-				reg = <5>;
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
@@ -78,7 +69,6 @@ Example:
 			};
 
 			ldo4_reg: ldo4 {
-				reg = <6>;
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
diff --git a/Documentation/devicetree/bindings/rtc/s3c-rtc.txt b/Documentation/devicetree/bindings/rtc/s3c-rtc.txt
index ac2fcd6..1068ffc 100644
--- a/Documentation/devicetree/bindings/rtc/s3c-rtc.txt
+++ b/Documentation/devicetree/bindings/rtc/s3c-rtc.txt
@@ -14,6 +14,10 @@ Required properties:
   interrupt number is the rtc alarm interrupt and second interrupt number
   is the rtc tick interrupt. The number of cells representing a interrupt
   depends on the parent interrupt controller.
+- clocks: Must contain a list of phandle and clock specifier for the rtc
+          and source clocks.
+- clock-names: Must contain "rtc" and "rtc_src" entries sorted in the
+               same order as the clocks property.
 
 Example:
 
@@ -21,4 +25,6 @@ Example:
 		compatible = "samsung,s3c6410-rtc";
 		reg = <0x10070000 0x100>;
 		interrupts = <44 0 45 0>;
+		clocks = <&clock CLK_RTC>, <&s2mps11_osc S2MPS11_CLK_AP>;
+		clock-names = "rtc", "rtc_src";
 	};
diff --git a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
index 35ae1fb..ed94c21 100644
--- a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
+++ b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
@@ -9,7 +9,7 @@ Optional properties:
 - fsl,uart-has-rtscts : Indicate the uart has rts and cts
 - fsl,irda-mode : Indicate the uart supports irda mode
 - fsl,dte-mode : Indicate the uart works in DTE mode. The uart works
-                  is DCE mode by default.
+                  in DCE mode by default.
 
 Note: Each uart controller should have an alias correctly numbered
 in "aliases" node.
diff --git a/Documentation/devicetree/bindings/sound/fsl-asoc-card.txt b/Documentation/devicetree/bindings/sound/fsl-asoc-card.txt
index ce55c0a..4da41bf 100644
--- a/Documentation/devicetree/bindings/sound/fsl-asoc-card.txt
+++ b/Documentation/devicetree/bindings/sound/fsl-asoc-card.txt
@@ -30,6 +30,8 @@ The compatible list for this generic sound card currently:
  "fsl,imx-audio-sgtl5000"
  (compatible with Documentation/devicetree/bindings/sound/imx-audio-sgtl5000.txt)
 
+ "fsl,imx-audio-wm8960"
+
 Required properties:
 
   - compatible		: Contains one of entries in the compatible list.
diff --git a/Documentation/devicetree/bindings/thermal/rcar-thermal.txt b/Documentation/devicetree/bindings/thermal/rcar-thermal.txt
index 332e625..e5ee3f1 100644
--- a/Documentation/devicetree/bindings/thermal/rcar-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/rcar-thermal.txt
@@ -1,8 +1,9 @@
 * Renesas R-Car Thermal
 
 Required properties:
-- compatible		: "renesas,thermal-<soctype>", "renesas,rcar-thermal"
-			  as fallback.
+- compatible		: "renesas,thermal-<soctype>",
+			   "renesas,rcar-gen2-thermal" (with thermal-zone) or
+			   "renesas,rcar-thermal" (without thermal-zone) as fallback.
 			  Examples with soctypes are:
 			    - "renesas,thermal-r8a73a4" (R-Mobile APE6)
 			    - "renesas,thermal-r8a7779" (R-Car H1)
@@ -36,3 +37,35 @@ thermal@e61f0000 {
 		0xe61f0300 0x38>;
 	interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
 };
+
+Example (with thermal-zone):
+
+thermal-zones {
+	cpu_thermal: cpu-thermal {
+		polling-delay-passive	= <1000>;
+		polling-delay		= <5000>;
+
+		thermal-sensors = <&thermal>;
+
+		trips {
+			cpu-crit {
+				temperature	= <115000>;
+				hysteresis	= <0>;
+				type		= "critical";
+			};
+		};
+		cooling-maps {
+		};
+	};
+};
+
+thermal: thermal@e61f0000 {
+	compatible =	"renesas,thermal-r8a7790",
+			"renesas,rcar-gen2-thermal",
+			"renesas,rcar-thermal";
+	reg = <0 0xe61f0000 0 0x14>, <0 0xe61f0100 0 0x38>;
+	interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&mstp5_clks R8A7790_CLK_THERMAL>;
+	power-domains = <&cpg_clocks>;
+	#thermal-sensor-cells = <0>;
+};
diff --git a/Documentation/filesystems/efivarfs.txt b/Documentation/filesystems/efivarfs.txt
index c477af0..686a64b 100644
--- a/Documentation/filesystems/efivarfs.txt
+++ b/Documentation/filesystems/efivarfs.txt
@@ -14,3 +14,10 @@ filesystem.
 efivarfs is typically mounted like this,
 
 	mount -t efivarfs none /sys/firmware/efi/efivars
+
+Due to the presence of numerous firmware bugs where removing non-standard
+UEFI variables causes the system firmware to fail to POST, efivarfs
+files that are not well-known standardized variables are created
+as immutable files.  This doesn't prevent removal - "chattr -i" will work -
+but it does prevent this kind of failure from being accomplished
+accidentally.
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 551ecf0..9a53c92 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -4235,6 +4235,17 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			The default value of this parameter is determined by
 			the config option CONFIG_WQ_POWER_EFFICIENT_DEFAULT.
 
+	workqueue.debug_force_rr_cpu
+			Workqueue used to implicitly guarantee that work
+			items queued without explicit CPU specified are put
+			on the local CPU.  This guarantee is no longer true
+			and while local CPU is still preferred work items
+			may be put on foreign CPUs.  This debug option
+			forces round-robin CPU selection to flush out
+			usages which depend on the now broken guarantee.
+			When enabled, memory and cache locality will be
+			impacted.
+
 	x2apic_phys	[X86-64,APIC] Use x2apic physical mode instead of
 			default x2apic cluster mode on platforms
 			supporting x2apic.
diff --git a/Documentation/mic/mic_overview.txt b/Documentation/mic/mic_overview.txt
index 73f44fc..074adbd 100644
--- a/Documentation/mic/mic_overview.txt
+++ b/Documentation/mic/mic_overview.txt
@@ -12,10 +12,19 @@ for the X100 devices.
 
 Since it is a PCIe card, it does not have the ability to host hardware
 devices for networking, storage and console. We provide these devices
-on X100 coprocessors thus enabling a self-bootable equivalent environment
-for applications. A key benefit of our solution is that it leverages
-the standard virtio framework for network, disk and console devices,
-though in our case the virtio framework is used across a PCIe bus.
+on X100 coprocessors thus enabling a self-bootable equivalent
+environment for applications. A key benefit of our solution is that it
+leverages the standard virtio framework for network, disk and console
+devices, though in our case the virtio framework is used across a PCIe
+bus. A Virtio Over PCIe (VOP) driver allows creating user space
+backends or devices on the host which are used to probe virtio drivers
+for these devices on the MIC card. The existing VRINGH infrastructure
+in the kernel is used to access virtio rings from the host. The card
+VOP driver allows card virtio drivers to communicate with their user
+space backends on the host via a device page. Ring 3 apps on the host
+can add, remove and configure virtio devices. A thin MIC specific
+virtio_config_ops is implemented which is borrowed heavily from
+previous similar implementations in lguest and s390.
 
 MIC PCIe card has a dma controller with 8 channels. These channels are
 shared between the host s/w and the card s/w. 0 to 3 are used by host
@@ -38,7 +47,6 @@ single threaded performance for the host compared to MIC, the ability of
 the host to initiate DMA's to/from the card using the MIC DMA engine and
 the fact that the virtio block storage backend can only be on the host.
 
-                                      |
                +----------+           |             +----------+
                | Card OS  |           |             | Host OS  |
                +----------+           |             +----------+
@@ -47,27 +55,25 @@ the fact that the virtio block storage backend can only be on the host.
         | Virtio| |Virtio  | |Virtio| | |Virtio   |  |Virtio  | |Virtio  |
         | Net   | |Console | |Block | | |Net      |  |Console | |Block   |
         | Driver| |Driver  | |Driver| | |backend  |  |backend | |backend |
-        +-------+ +--------+ +------+ | +---------+  +--------+ +--------+
+        +---+---+ +---+----+ +--+---+ | +---------+  +----+---+ +--------+
             |         |         |     |      |            |         |
             |         |         |     |User  |            |         |
-            |         |         |     |------|------------|---------|-------
-            +-------------------+     |Kernel +--------------------------+
-                      |               |       | Virtio over PCIe IOCTLs  |
-                      |               |       +--------------------------+
-+-----------+         |               |                   |  +-----------+
-| MIC DMA   |         |      +------+ | +------+ +------+ |  | MIC DMA   |
-| Driver    |         |      | SCIF | | | SCIF | | COSM | |  | Driver    |
-+-----------+         |      +------+ | +------+ +--+---+ |  +-----------+
-      |               |         |     |    |        |     |        |
-+---------------+     |      +------+ | +--+---+ +--+---+ | +----------------+
-|MIC virtual Bus|     |      |SCIF  | | |SCIF  | | COSM | | |MIC virtual Bus |
-+---------------+     |      |HW Bus| | |HW Bus| | Bus  | | +----------------+
-      |               |      +------+ | +--+---+ +------+ |              |
-      |               |         |     |       |     |     |              |
-      |   +-----------+---+     |     |       |    +---------------+     |
-      |   |Intel MIC      |     |     |       |    |Intel MIC      |     |
-      +---|Card Driver    |     |     |       |    |Host Driver    |     |
-          +------------+--------+     |       +----+---------------+-----+
+            |         |         |     |------|------------|--+------|-------
+            +---------+---------+     |Kernel                |
+                      |               |                      |
+  +---------+     +---+----+ +------+ | +------+ +------+ +--+---+  +-------+
+  |MIC DMA  |     |  VOP   | | SCIF | | | SCIF | | COSM | | VOP  |  |MIC DMA|
+  +---+-----+     +---+----+ +--+---+ | +--+---+ +--+---+ +------+  +----+--+
+      |               |         |     |    |        |                    |
+  +---+-----+     +---+----+ +--+---+ | +--+---+ +--+---+ +------+  +----+--+
+  |MIC      |     |  VOP   | |SCIF  | | |SCIF  | | COSM | | VOP  |  | MIC   |
+  |HW Bus   |     |  HW Bus| |HW Bus| | |HW Bus| | Bus  | |HW Bus|  |HW Bus |
+  +---------+     +--------+ +--+---+ | +--+---+ +------+ +------+  +-------+
+      |               |         |     |       |     |                    |
+      |   +-----------+--+      |     |       |    +---------------+     |
+      |   |Intel MIC     |      |     |       |    |Intel MIC      |     |
+      |   |Card Driver   |      |     |       |    |Host Driver    |     |
+      +---+--------------+------+     |       +----+---------------+-----+
                  |                    |                   |
              +-------------------------------------------------------------+
              |                                                             |
diff --git a/Documentation/mic/mpssd/mpss b/Documentation/mic/mpssd/mpss
index 09ea9093..5fcf9fa 100755
--- a/Documentation/mic/mpssd/mpss
+++ b/Documentation/mic/mpssd/mpss
@@ -35,7 +35,7 @@
 
 exec=/usr/sbin/mpssd
 sysfs="/sys/class/mic"
-mic_modules="mic_host mic_x100_dma scif"
+mic_modules="mic_host mic_x100_dma scif vop"
 
 start()
 {
diff --git a/Documentation/mic/mpssd/mpssd.c b/Documentation/mic/mpssd/mpssd.c
index aaeafa1..518dece 100644
--- a/Documentation/mic/mpssd/mpssd.c
+++ b/Documentation/mic/mpssd/mpssd.c
@@ -926,7 +926,7 @@ add_virtio_device(struct mic_info *mic, struct mic_device_desc *dd)
 	char path[PATH_MAX];
 	int fd, err;
 
-	snprintf(path, PATH_MAX, "/dev/mic%d", mic->id);
+	snprintf(path, PATH_MAX, "/dev/vop_virtio%d", mic->id);
 	fd = open(path, O_RDWR);
 	if (fd < 0) {
 		mpsslog("Could not open %s %s\n", path, strerror(errno));
diff --git a/Documentation/misc-devices/mei/mei.txt b/Documentation/misc-devices/mei/mei.txt
index 91c1fa3..2b80a0c 100644
--- a/Documentation/misc-devices/mei/mei.txt
+++ b/Documentation/misc-devices/mei/mei.txt
@@ -231,15 +231,15 @@ IT knows when a platform crashes even when there is a hard failure on the host.
 The Intel AMT Watchdog is composed of two parts:
 	1) Firmware feature - receives the heartbeats
 	   and sends an event when the heartbeats stop.
-	2) Intel MEI driver - connects to the watchdog feature, configures the
-	   watchdog and sends the heartbeats.
+	2) Intel MEI iAMT watchdog driver - connects to the watchdog feature,
+	   configures the watchdog and sends the heartbeats.
 
-The Intel MEI driver uses the kernel watchdog API to configure the Intel AMT
-Watchdog and to send heartbeats to it. The default timeout of the
+The Intel iAMT watchdog MEI driver uses the kernel watchdog API to configure
+the Intel AMT Watchdog and to send heartbeats to it. The default timeout of the
 watchdog is 120 seconds.
 
-If the Intel AMT Watchdog feature does not exist (i.e. the connection failed),
-the Intel MEI driver will disable the sending of heartbeats.
+If the Intel AMT is not enabled in the firmware then the watchdog client won't enumerate
+on the me client bus and watchdog devices won't be exposed.
 
 
 Supported Chipsets
diff --git a/Documentation/timers/hpet.txt b/Documentation/timers/hpet.txt
index 767392f..a484d2c 100644
--- a/Documentation/timers/hpet.txt
+++ b/Documentation/timers/hpet.txt
@@ -1,9 +1,7 @@
 		High Precision Event Timer Driver for Linux
 
 The High Precision Event Timer (HPET) hardware follows a specification
-by Intel and Microsoft which can be found at
-
-	http://www.intel.com/hardwaredesign/hpetspec_1.pdf
+by Intel and Microsoft, revision 1.
 
 Each HPET has one fixed-rate counter (at 10+ MHz, hence "High Precision")
 and up to 32 comparators.  Normally three or more comparators are provided,
diff --git a/MAINTAINERS b/MAINTAINERS
index fa6af01..dd9ee367d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -926,17 +926,24 @@ M:	Emilio López <emilio@elopez.com.ar>
 S:	Maintained
 F:	drivers/clk/sunxi/
 
-ARM/Amlogic MesonX SoC support
+ARM/Amlogic Meson SoC support
 M:	Carlo Caione <carlo@caione.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L:	linux-meson@googlegroups.com
+W:	http://linux-meson.com/
 S:	Maintained
-F:	drivers/media/rc/meson-ir.c
-N:	meson[x68]
+F:	arch/arm/mach-meson/
+F:	arch/arm/boot/dts/meson*
+N:	meson
 
 ARM/Annapurna Labs ALPINE ARCHITECTURE
 M:	Tsahee Zidenberg <tsahee@annapurnalabs.com>
+M:	Antoine Tenart <antoine.tenart@free-electrons.com>
 S:	Maintained
 F:	arch/arm/mach-alpine/
+F:	arch/arm/boot/dts/alpine*
+F:	arch/arm64/boot/dts/al/
+F:	drivers/*/*alpine*
 
 ARM/ATMEL AT91RM9200, AT91SAM9 AND SAMA5 SOC SUPPORT
 M:	Nicolas Ferre <nicolas.ferre@atmel.com>
@@ -1448,8 +1455,8 @@ S:	Maintained
 ARM/RENESAS ARM64 ARCHITECTURE
 M:	Simon Horman <horms@verge.net.au>
 M:	Magnus Damm <magnus.damm@gmail.com>
-L:	linux-sh@vger.kernel.org
-Q:	http://patchwork.kernel.org/project/linux-sh/list/
+L:	linux-renesas-soc@vger.kernel.org
+Q:	http://patchwork.kernel.org/project/linux-renesas-soc/list/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git next
 S:	Supported
 F:	arch/arm64/boot/dts/renesas/
@@ -2374,14 +2381,6 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/rpi/linux-rpi.git
 S:	Maintained
 N:	bcm2835
 
-BROADCOM BCM33XX MIPS ARCHITECTURE
-M:	Kevin Cernekee <cernekee@gmail.com>
-L:	linux-mips@linux-mips.org
-S:	Maintained
-F:	arch/mips/bcm3384/*
-F:	arch/mips/include/asm/mach-bcm3384/*
-F:	arch/mips/kernel/*bmips*
-
 BROADCOM BCM47XX MIPS ARCHITECTURE
 M:	Hauke Mehrtens <hauke@hauke-m.de>
 M:	Rafał Miłecki <zajec5@gmail.com>
@@ -3464,7 +3463,6 @@ F:	drivers/usb/dwc2/
 DESIGNWARE USB3 DRD IP DRIVER
 M:	Felipe Balbi <balbi@kernel.org>
 L:	linux-usb@vger.kernel.org
-L:	linux-omap@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git
 S:	Maintained
 F:	drivers/usb/dwc3/
@@ -5754,6 +5752,7 @@ S:	Supported
 F:	include/uapi/linux/mei.h
 F:	include/linux/mei_cl_bus.h
 F:	drivers/misc/mei/*
+F:	drivers/watchdog/mei_wdt.c
 F:	Documentation/misc-devices/mei/*
 
 INTEL MIC DRIVERS (mic)
@@ -6141,7 +6140,7 @@ F:	include/uapi/linux/sunrpc/
 
 KERNEL SELFTEST FRAMEWORK
 M:	Shuah Khan <shuahkh@osg.samsung.com>
-L:	linux-api@vger.kernel.org
+L:	linux-kselftest@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/shuah/linux-kselftest
 S:	Maintained
 F:	tools/testing/selftests
@@ -7367,7 +7366,7 @@ F:	drivers/tty/isicom.c
 F:	include/linux/isicom.h
 
 MUSB MULTIPOINT HIGH SPEED DUAL-ROLE CONTROLLER
-M:	Felipe Balbi <balbi@kernel.org>
+M:	Bin Liu <b-liu@ti.com>
 L:	linux-usb@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git
 S:	Maintained
@@ -7699,13 +7698,13 @@ S:	Maintained
 F:	arch/nios2/
 
 NOKIA N900 POWER SUPPLY DRIVERS
-M:	Pali Rohár <pali.rohar@gmail.com>
-S:	Maintained
+R:	Pali Rohár <pali.rohar@gmail.com>
 F:	include/linux/power/bq2415x_charger.h
 F:	include/linux/power/bq27xxx_battery.h
 F:	include/linux/power/isp1704_charger.h
 F:	drivers/power/bq2415x_charger.c
 F:	drivers/power/bq27xxx_battery.c
+F:	drivers/power/bq27xxx_battery_i2c.c
 F:	drivers/power/isp1704_charger.c
 F:	drivers/power/rx51_battery.c
 
@@ -7936,11 +7935,9 @@ F:	drivers/media/platform/omap3isp/
 F:	drivers/staging/media/omap4iss/
 
 OMAP USB SUPPORT
-M:	Felipe Balbi <balbi@kernel.org>
 L:	linux-usb@vger.kernel.org
 L:	linux-omap@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git
-S:	Maintained
+S:	Orphan
 F:	drivers/usb/*/*omap*
 F:	arch/arm/*omap*/usb*
 
@@ -9578,6 +9575,12 @@ M:	Andreas Noever <andreas.noever@gmail.com>
 S:	Maintained
 F:	drivers/thunderbolt/
 
+TI BQ27XXX POWER SUPPLY DRIVER
+R:	Andrew F. Davis <afd@ti.com>
+F:	include/linux/power/bq27xxx_battery.h
+F:	drivers/power/bq27xxx_battery.c
+F:	drivers/power/bq27xxx_battery_i2c.c
+
 TIMEKEEPING, CLOCKSOURCE CORE, NTP, ALARMTIMER
 M:	John Stultz <john.stultz@linaro.org>
 M:	Thomas Gleixner <tglx@linutronix.de>
@@ -9799,10 +9802,11 @@ S:	Supported
 F:	drivers/scsi/be2iscsi/
 
 Emulex 10Gbps NIC BE2, BE3-R, Lancer, Skyhawk-R DRIVER
-M:	Sathya Perla <sathya.perla@avagotech.com>
-M:	Ajit Khaparde <ajit.khaparde@avagotech.com>
-M:	Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com>
-M:	Sriharsha Basavapatna <sriharsha.basavapatna@avagotech.com>
+M:	Sathya Perla <sathya.perla@broadcom.com>
+M:	Ajit Khaparde <ajit.khaparde@broadcom.com>
+M:	Padmanabh Ratnakar <padmanabh.ratnakar@broadcom.com>
+M:	Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
+M:	Somnath Kotur <somnath.kotur@broadcom.com>
 L:	netdev@vger.kernel.org
 W:	http://www.emulex.com
 S:	Supported
@@ -12019,7 +12023,6 @@ F:	arch/arm64/xen/
 F:	arch/arm64/include/asm/xen/
 
 XEN NETWORK BACKEND DRIVER
-M:	Ian Campbell <ian.campbell@citrix.com>
 M:	Wei Liu <wei.liu2@citrix.com>
 L:	xen-devel@lists.xenproject.org (moderated for non-subscribers)
 L:	netdev@vger.kernel.org
diff --git a/Makefile b/Makefile
index 6828408..af6e5f8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 4
 PATCHLEVEL = 5
 SUBLEVEL = 0
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc6
 NAME = Blurry Fish Butt
 
 # *DOCUMENTATION*
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 76dde9d..8a188bc 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -12,8 +12,6 @@ config ARC
 	select BUILDTIME_EXTABLE_SORT
 	select COMMON_CLK
 	select CLONE_BACKWARDS
-	# ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev
-	select DEVTMPFS if !INITRAMFS_SOURCE=""
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_FIND_FIRST_BIT
@@ -275,14 +273,6 @@ config ARC_DCCM_BASE
 	default "0xA0000000"
 	depends on ARC_HAS_DCCM
 
-config ARC_HAS_HW_MPY
-	bool "Use Hardware Multiplier (Normal or Faster XMAC)"
-	default y
-	help
-	  Influences how gcc generates code for MPY operations.
-	  If enabled, MPYxx insns are generated, provided by Standard/XMAC
-	  Multipler. Otherwise software multipy lib is used
-
 choice
 	prompt "MMU Version"
 	default ARC_MMU_V3 if ARC_CPU_770
@@ -338,6 +328,19 @@ config ARC_PAGE_SIZE_4K
 
 endchoice
 
+choice
+	prompt "MMU Super Page Size"
+	depends on ISA_ARCV2 && TRANSPARENT_HUGEPAGE
+	default ARC_HUGEPAGE_2M
+
+config ARC_HUGEPAGE_2M
+	bool "2MB"
+
+config ARC_HUGEPAGE_16M
+	bool "16MB"
+
+endchoice
+
 if ISA_ARCOMPACT
 
 config ARC_COMPACT_IRQ_LEVELS
@@ -410,7 +413,7 @@ config ARC_HAS_RTC
 	default n
 	depends on !SMP
 
-config ARC_HAS_GRTC
+config ARC_HAS_GFRC
 	bool "SMP synchronized 64-bit cycle counter"
 	default y
 	depends on SMP
@@ -529,14 +532,6 @@ config ARC_DBG_TLB_MISS_COUNT
 	  Counts number of I and D TLB Misses and exports them via Debugfs
 	  The counters can be cleared via Debugfs as well
 
-if SMP
-
-config ARC_IPI_DBG
-	bool "Debug Inter Core interrupts"
-	default n
-
-endif
-
 endif
 
 config ARC_UBOOT_SUPPORT
@@ -566,6 +561,12 @@ endmenu
 endmenu	 # "ARC Architecture Configuration"
 
 source "mm/Kconfig"
+
+config FORCE_MAX_ZONEORDER
+	int "Maximum zone order"
+	default "12" if ARC_HUGEPAGE_16M
+	default "11"
+
 source "net/Kconfig"
 source "drivers/Kconfig"
 source "fs/Kconfig"
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index aeb1902..c8230f3 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -74,10 +74,6 @@ ldflags-$(CONFIG_CPU_BIG_ENDIAN)	+= -EB
 # --build-id w/o "-marclinux". Default arc-elf32-ld is OK
 ldflags-$(upto_gcc44)			+= -marclinux
 
-ifndef CONFIG_ARC_HAS_HW_MPY
-	cflags-y	+= -mno-mpy
-endif
-
 LIBGCC	:= $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
 
 # Modules with short calls might break for calls into builtin-kernel
diff --git a/arch/arc/configs/axs101_defconfig b/arch/arc/configs/axs101_defconfig
index f1ac981..5d4e2a0 100644
--- a/arch/arc/configs/axs101_defconfig
+++ b/arch/arc/configs/axs101_defconfig
@@ -39,6 +39,7 @@ CONFIG_IP_PNP_RARP=y
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
 # CONFIG_IPV6 is not set
+CONFIG_DEVTMPFS=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FIRMWARE_IN_KERNEL is not set
@@ -73,7 +74,6 @@ CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_DESIGNWARE_PLATFORM=y
 # CONFIG_HWMON is not set
 CONFIG_FB=y
-# CONFIG_VGA_CONSOLE is not set
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
 CONFIG_LOGO=y
@@ -91,12 +91,10 @@ CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_DW=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_EXT3_FS=y
-CONFIG_EXT4_FS=y
 CONFIG_MSDOS_FS=y
 CONFIG_VFAT_FS=y
 CONFIG_NTFS_FS=y
 CONFIG_TMPFS=y
-CONFIG_JFFS2_FS=y
 CONFIG_NFS_FS=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ISO8859_1=y
diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig
index 323486d..87ee46b 100644
--- a/arch/arc/configs/axs103_defconfig
+++ b/arch/arc/configs/axs103_defconfig
@@ -39,14 +39,10 @@ CONFIG_IP_PNP_RARP=y
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
 # CONFIG_IPV6 is not set
+CONFIG_DEVTMPFS=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FIRMWARE_IN_KERNEL is not set
-CONFIG_MTD=y
-CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_BLOCK=y
-CONFIG_MTD_NAND=y
-CONFIG_MTD_NAND_AXS=y
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_NETDEVICES=y
@@ -78,14 +74,12 @@ CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_DESIGNWARE_PLATFORM=y
 # CONFIG_HWMON is not set
 CONFIG_FB=y
-# CONFIG_VGA_CONSOLE is not set
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
 CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_MONO is not set
 # CONFIG_LOGO_LINUX_VGA16 is not set
 # CONFIG_LOGO_LINUX_CLUT224 is not set
-CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_HCD_PLATFORM=y
 CONFIG_USB_OHCI_HCD=y
@@ -97,12 +91,10 @@ CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_DW=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_EXT3_FS=y
-CONFIG_EXT4_FS=y
 CONFIG_MSDOS_FS=y
 CONFIG_VFAT_FS=y
 CONFIG_NTFS_FS=y
 CONFIG_TMPFS=y
-CONFIG_JFFS2_FS=y
 CONFIG_NFS_FS=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ISO8859_1=y
diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig
index 66191cd..d80daf4 100644
--- a/arch/arc/configs/axs103_smp_defconfig
+++ b/arch/arc/configs/axs103_smp_defconfig
@@ -40,14 +40,10 @@ CONFIG_IP_PNP_RARP=y
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
 # CONFIG_IPV6 is not set
+CONFIG_DEVTMPFS=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FIRMWARE_IN_KERNEL is not set
-CONFIG_MTD=y
-CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_BLOCK=y
-CONFIG_MTD_NAND=y
-CONFIG_MTD_NAND_AXS=y
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_NETDEVICES=y
@@ -79,14 +75,12 @@ CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_DESIGNWARE_PLATFORM=y
 # CONFIG_HWMON is not set
 CONFIG_FB=y
-# CONFIG_VGA_CONSOLE is not set
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
 CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_MONO is not set
 # CONFIG_LOGO_LINUX_VGA16 is not set
 # CONFIG_LOGO_LINUX_CLUT224 is not set
-CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_HCD_PLATFORM=y
 CONFIG_USB_OHCI_HCD=y
@@ -98,12 +92,10 @@ CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_DW=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_EXT3_FS=y
-CONFIG_EXT4_FS=y
 CONFIG_MSDOS_FS=y
 CONFIG_VFAT_FS=y
 CONFIG_NTFS_FS=y
 CONFIG_TMPFS=y
-CONFIG_JFFS2_FS=y
 CONFIG_NFS_FS=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ISO8859_1=y
diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig
index 138f9d8..f410953 100644
--- a/arch/arc/configs/nsim_700_defconfig
+++ b/arch/arc/configs/nsim_700_defconfig
@@ -4,6 +4,7 @@ CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
+# CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
@@ -26,7 +27,6 @@ CONFIG_ARC_PLAT_SIM=y
 CONFIG_ARC_BUILTIN_DTB_NAME="nsim_700"
 CONFIG_PREEMPT=y
 # CONFIG_COMPACTION is not set
-# CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
@@ -34,6 +34,7 @@ CONFIG_UNIX_DIAG=y
 CONFIG_NET_KEY=y
 CONFIG_INET=y
 # CONFIG_IPV6 is not set
+CONFIG_DEVTMPFS=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FIRMWARE_IN_KERNEL is not set
@@ -51,7 +52,6 @@ CONFIG_SERIAL_ARC=y
 CONFIG_SERIAL_ARC_CONSOLE=y
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
-# CONFIG_VGA_CONSOLE is not set
 # CONFIG_HID is not set
 # CONFIG_USB_SUPPORT is not set
 # CONFIG_IOMMU_SUPPORT is not set
@@ -63,4 +63,3 @@ CONFIG_NFS_FS=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
 # CONFIG_DEBUG_PREEMPT is not set
-CONFIG_XZ_DEC=y
diff --git a/arch/arc/configs/nsim_hs_defconfig b/arch/arc/configs/nsim_hs_defconfig
index f68838e..cfaa33c 100644
--- a/arch/arc/configs/nsim_hs_defconfig
+++ b/arch/arc/configs/nsim_hs_defconfig
@@ -35,6 +35,7 @@ CONFIG_UNIX_DIAG=y
 CONFIG_NET_KEY=y
 CONFIG_INET=y
 # CONFIG_IPV6 is not set
+CONFIG_DEVTMPFS=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FIRMWARE_IN_KERNEL is not set
@@ -49,7 +50,6 @@ CONFIG_SERIAL_ARC=y
 CONFIG_SERIAL_ARC_CONSOLE=y
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
-# CONFIG_VGA_CONSOLE is not set
 # CONFIG_HID is not set
 # CONFIG_USB_SUPPORT is not set
 # CONFIG_IOMMU_SUPPORT is not set
@@ -61,4 +61,3 @@ CONFIG_NFS_FS=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
 # CONFIG_DEBUG_PREEMPT is not set
-CONFIG_XZ_DEC=y
diff --git a/arch/arc/configs/nsim_hs_smp_defconfig b/arch/arc/configs/nsim_hs_smp_defconfig
index 96bd1c2..bb2a8dc 100644
--- a/arch/arc/configs/nsim_hs_smp_defconfig
+++ b/arch/arc/configs/nsim_hs_smp_defconfig
@@ -2,6 +2,7 @@ CONFIG_CROSS_COMPILE="arc-linux-"
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_SWAP is not set
+# CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
@@ -21,13 +22,11 @@ CONFIG_MODULES=y
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARC_PLAT_SIM=y
-CONFIG_ARC_BOARD_ML509=y
 CONFIG_ISA_ARCV2=y
 CONFIG_SMP=y
 CONFIG_ARC_BUILTIN_DTB_NAME="nsim_hs_idu"
 CONFIG_PREEMPT=y
 # CONFIG_COMPACTION is not set
-# CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
@@ -35,6 +34,7 @@ CONFIG_UNIX_DIAG=y
 CONFIG_NET_KEY=y
 CONFIG_INET=y
 # CONFIG_IPV6 is not set
+CONFIG_DEVTMPFS=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FIRMWARE_IN_KERNEL is not set
@@ -49,7 +49,6 @@ CONFIG_SERIAL_ARC=y
 CONFIG_SERIAL_ARC_CONSOLE=y
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
-# CONFIG_VGA_CONSOLE is not set
 # CONFIG_HID is not set
 # CONFIG_USB_SUPPORT is not set
 # CONFIG_IOMMU_SUPPORT is not set
@@ -60,4 +59,3 @@ CONFIG_TMPFS=y
 CONFIG_NFS_FS=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
-CONFIG_XZ_DEC=y
diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig
index 31e1d95..646182e 100644
--- a/arch/arc/configs/nsimosci_defconfig
+++ b/arch/arc/configs/nsimosci_defconfig
@@ -33,6 +33,7 @@ CONFIG_UNIX_DIAG=y
 CONFIG_NET_KEY=y
 CONFIG_INET=y
 # CONFIG_IPV6 is not set
+CONFIG_DEVTMPFS=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FIRMWARE_IN_KERNEL is not set
@@ -58,7 +59,6 @@ CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
 CONFIG_FB=y
-# CONFIG_VGA_CONSOLE is not set
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 # CONFIG_HID is not set
diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig
index fcae666..ceca254 100644
--- a/arch/arc/configs/nsimosci_hs_defconfig
+++ b/arch/arc/configs/nsimosci_hs_defconfig
@@ -34,12 +34,12 @@ CONFIG_UNIX_DIAG=y
 CONFIG_NET_KEY=y
 CONFIG_INET=y
 # CONFIG_IPV6 is not set
+CONFIG_DEVTMPFS=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FIRMWARE_IN_KERNEL is not set
 # CONFIG_BLK_DEV is not set
 CONFIG_NETDEVICES=y
-CONFIG_NET_OSCI_LAN=y
 CONFIG_INPUT_EVDEV=y
 # CONFIG_MOUSE_PS2_ALPS is not set
 # CONFIG_MOUSE_PS2_LOGIPS2PP is not set
@@ -58,7 +58,6 @@ CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
 CONFIG_FB=y
-# CONFIG_VGA_CONSOLE is not set
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 # CONFIG_HID is not set
diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig
index b01b659..4b6da90 100644
--- a/arch/arc/configs/nsimosci_hs_smp_defconfig
+++ b/arch/arc/configs/nsimosci_hs_smp_defconfig
@@ -2,6 +2,7 @@ CONFIG_CROSS_COMPILE="arc-linux-"
 CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
+# CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_IKCONFIG=y
@@ -18,15 +19,11 @@ CONFIG_MODULES=y
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARC_PLAT_SIM=y
-CONFIG_ARC_BOARD_ML509=y
 CONFIG_ISA_ARCV2=y
 CONFIG_SMP=y
-CONFIG_ARC_HAS_LL64=y
-# CONFIG_ARC_HAS_RTSC is not set
 CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci_hs_idu"
 CONFIG_PREEMPT=y
 # CONFIG_COMPACTION is not set
-# CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_PACKET_DIAG=y
@@ -40,6 +37,7 @@ CONFIG_INET=y
 # CONFIG_INET_LRO is not set
 # CONFIG_IPV6 is not set
 # CONFIG_WIRELESS is not set
+CONFIG_DEVTMPFS=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FIRMWARE_IN_KERNEL is not set
@@ -56,14 +54,11 @@ CONFIG_NETDEVICES=y
 # CONFIG_NET_VENDOR_STMICRO is not set
 # CONFIG_NET_VENDOR_VIA is not set
 # CONFIG_NET_VENDOR_WIZNET is not set
-CONFIG_NET_OSCI_LAN=y
 # CONFIG_WLAN is not set
 CONFIG_INPUT_EVDEV=y
 CONFIG_MOUSE_PS2_TOUCHKIT=y
 # CONFIG_SERIO_SERPORT is not set
-CONFIG_SERIO_LIBPS2=y
 CONFIG_SERIO_ARC_PS2=y
-CONFIG_VT_HW_CONSOLE_BINDING=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
@@ -75,9 +70,6 @@ CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
 CONFIG_FB=y
-CONFIG_ARCPGU_RGB888=y
-CONFIG_ARCPGU_DISPTYPE=0
-# CONFIG_VGA_CONSOLE is not set
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 # CONFIG_HID is not set
diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig
index 3b4dc9c..9b342ea 100644
--- a/arch/arc/configs/tb10x_defconfig
+++ b/arch/arc/configs/tb10x_defconfig
@@ -3,6 +3,7 @@ CONFIG_CROSS_COMPILE="arc-linux-"
 CONFIG_DEFAULT_HOSTNAME="tb10x"
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
+# CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_BSD_PROCESS_ACCT_V3=y
@@ -26,12 +27,10 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_BLOCK is not set
 CONFIG_ARC_PLAT_TB10X=y
 CONFIG_ARC_CACHE_LINE_SHIFT=5
-CONFIG_ARC_STACK_NONEXEC=y
 CONFIG_HZ=250
 CONFIG_ARC_BUILTIN_DTB_NAME="abilis_tb100_dvk"
 CONFIG_PREEMPT_VOLUNTARY=y
 # CONFIG_COMPACTION is not set
-# CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
@@ -44,8 +43,8 @@ CONFIG_IP_MULTICAST=y
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
 # CONFIG_WIRELESS is not set
+CONFIG_DEVTMPFS=y
 # CONFIG_FIRMWARE_IN_KERNEL is not set
-CONFIG_PROC_DEVICETREE=y
 CONFIG_NETDEVICES=y
 # CONFIG_NET_CADENCE is not set
 # CONFIG_NET_VENDOR_BROADCOM is not set
@@ -55,9 +54,6 @@ CONFIG_NETDEVICES=y
 # CONFIG_NET_VENDOR_NATSEMI is not set
 # CONFIG_NET_VENDOR_SEEQ is not set
 CONFIG_STMMAC_ETH=y
-CONFIG_STMMAC_DEBUG_FS=y
-CONFIG_STMMAC_DA=y
-CONFIG_STMMAC_CHAINED=y
 # CONFIG_NET_VENDOR_WIZNET is not set
 # CONFIG_WLAN is not set
 # CONFIG_INPUT is not set
@@ -91,7 +87,6 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
 CONFIG_LEDS_TRIGGER_TRANSIENT=y
 CONFIG_DMADEVICES=y
 CONFIG_DW_DMAC=y
-CONFIG_NET_DMA=y
 CONFIG_ASYNC_TX_DMA=y
 # CONFIG_IOMMU_SUPPORT is not set
 # CONFIG_DNOTIFY is not set
@@ -100,17 +95,16 @@ CONFIG_TMPFS=y
 CONFIG_CONFIGFS_FS=y
 # CONFIG_MISC_FILESYSTEMS is not set
 # CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_DEBUG_INFO=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
-CONFIG_MAGIC_SYSRQ=y
 CONFIG_STRIP_ASM_SYMS=y
 CONFIG_DEBUG_FS=y
 CONFIG_HEADERS_CHECK=y
 CONFIG_DEBUG_SECTION_MISMATCH=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_DEBUG_STACKOVERFLOW=y
 CONFIG_DETECT_HUNG_TASK=y
 CONFIG_SCHEDSTATS=y
 CONFIG_TIMER_STATS=y
-CONFIG_DEBUG_INFO=y
-CONFIG_DEBUG_MEMORY_INIT=y
-CONFIG_DEBUG_STACKOVERFLOW=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
 # CONFIG_CRYPTO_HW is not set
diff --git a/arch/arc/configs/vdk_hs38_smp_defconfig b/arch/arc/configs/vdk_hs38_smp_defconfig
index f36c047..7359859 100644
--- a/arch/arc/configs/vdk_hs38_smp_defconfig
+++ b/arch/arc/configs/vdk_hs38_smp_defconfig
@@ -16,7 +16,7 @@ CONFIG_ARC_PLAT_AXS10X=y
 CONFIG_AXS103=y
 CONFIG_ISA_ARCV2=y
 CONFIG_SMP=y
-# CONFIG_ARC_HAS_GRTC is not set
+# CONFIG_ARC_HAS_GFRC is not set
 CONFIG_ARC_UBOOT_SUPPORT=y
 CONFIG_ARC_BUILTIN_DTB_NAME="vdk_hs38_smp"
 CONFIG_PREEMPT=y
diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index 7fac7d8..f9f4c6f 100644
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -10,7 +10,8 @@
 #define _ASM_ARC_ARCREGS_H
 
 /* Build Configuration Registers */
-#define ARC_REG_DCCMBASE_BCR	0x61	/* DCCM Base Addr */
+#define ARC_REG_AUX_DCCM	0x18	/* DCCM Base Addr ARCv2 */
+#define ARC_REG_DCCM_BASE_BUILD	0x61	/* DCCM Base Addr ARCompact */
 #define ARC_REG_CRC_BCR		0x62
 #define ARC_REG_VECBASE_BCR	0x68
 #define ARC_REG_PERIBASE_BCR	0x69
@@ -18,10 +19,10 @@
 #define ARC_REG_DPFP_BCR	0x6C	/* ARCompact: Dbl Precision FPU */
 #define ARC_REG_FP_V2_BCR	0xc8	/* ARCv2 FPU */
 #define ARC_REG_SLC_BCR		0xce
-#define ARC_REG_DCCM_BCR	0x74	/* DCCM Present + SZ */
+#define ARC_REG_DCCM_BUILD	0x74	/* DCCM size (common) */
 #define ARC_REG_TIMERS_BCR	0x75
 #define ARC_REG_AP_BCR		0x76
-#define ARC_REG_ICCM_BCR	0x78
+#define ARC_REG_ICCM_BUILD	0x78	/* ICCM size (common) */
 #define ARC_REG_XY_MEM_BCR	0x79
 #define ARC_REG_MAC_BCR		0x7a
 #define ARC_REG_MUL_BCR		0x7b
@@ -36,6 +37,7 @@
 #define ARC_REG_IRQ_BCR		0xF3
 #define ARC_REG_SMART_BCR	0xFF
 #define ARC_REG_CLUSTER_BCR	0xcf
+#define ARC_REG_AUX_ICCM	0x208	/* ICCM Base Addr (ARCv2) */
 
 /* status32 Bits Positions */
 #define STATUS_AE_BIT		5	/* Exception active */
@@ -246,7 +248,7 @@ struct bcr_perip {
 #endif
 };
 
-struct bcr_iccm {
+struct bcr_iccm_arcompact {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int base:16, pad:5, sz:3, ver:8;
 #else
@@ -254,17 +256,15 @@ struct bcr_iccm {
 #endif
 };
 
-/* DCCM Base Address Register: ARC_REG_DCCMBASE_BCR */
-struct bcr_dccm_base {
+struct bcr_iccm_arcv2 {
 #ifdef CONFIG_CPU_BIG_ENDIAN
-	unsigned int addr:24, ver:8;
+	unsigned int pad:8, sz11:4, sz01:4, sz10:4, sz00:4, ver:8;
 #else
-	unsigned int ver:8, addr:24;
+	unsigned int ver:8, sz00:4, sz10:4, sz01:4, sz11:4, pad:8;
 #endif
 };
 
-/* DCCM RAM Configuration Register: ARC_REG_DCCM_BCR */
-struct bcr_dccm {
+struct bcr_dccm_arcompact {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int res:21, sz:3, ver:8;
 #else
@@ -272,6 +272,14 @@ struct bcr_dccm {
 #endif
 };
 
+struct bcr_dccm_arcv2 {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	unsigned int pad2:12, cyc:3, pad1:1, sz1:4, sz0:4, ver:8;
+#else
+	unsigned int ver:8, sz0:4, sz1:4, pad1:1, cyc:3, pad2:12;
+#endif
+};
+
 /* ARCompact: Both SP and DP FPU BCRs have same format */
 struct bcr_fp_arcompact {
 #ifdef CONFIG_CPU_BIG_ENDIAN
@@ -315,9 +323,9 @@ struct bcr_bpu_arcv2 {
 
 struct bcr_generic {
 #ifdef CONFIG_CPU_BIG_ENDIAN
-	unsigned int pad:24, ver:8;
+	unsigned int info:24, ver:8;
 #else
-	unsigned int ver:8, pad:24;
+	unsigned int ver:8, info:24;
 #endif
 };
 
@@ -349,14 +357,13 @@ struct cpuinfo_arc {
 	struct cpuinfo_arc_bpu bpu;
 	struct bcr_identity core;
 	struct bcr_isa isa;
-	struct bcr_timer timers;
 	unsigned int vec_base;
 	struct cpuinfo_arc_ccm iccm, dccm;
 	struct {
 		unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, pad1:3,
 			     fpu_sp:1, fpu_dp:1, pad2:6,
 			     debug:1, ap:1, smart:1, rtt:1, pad3:4,
-			     pad4:8;
+			     timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4;
 	} extn;
 	struct bcr_mpy extn_mpy;
 	struct bcr_extn_xymem extn_xymem;
diff --git a/arch/arc/include/asm/irq.h b/arch/arc/include/asm/irq.h
index 4fd7d62..49014f0 100644
--- a/arch/arc/include/asm/irq.h
+++ b/arch/arc/include/asm/irq.h
@@ -16,11 +16,9 @@
 #ifdef CONFIG_ISA_ARCOMPACT
 #define TIMER0_IRQ      3
 #define TIMER1_IRQ      4
-#define IPI_IRQ		(NR_CPU_IRQS-1) /* dummy to enable SMP build for up hardware */
 #else
 #define TIMER0_IRQ      16
 #define TIMER1_IRQ      17
-#define IPI_IRQ         19
 #endif
 
 #include <linux/interrupt.h>
diff --git a/arch/arc/include/asm/irqflags-arcv2.h b/arch/arc/include/asm/irqflags-arcv2.h
index 258b0e5..37c2f75 100644
--- a/arch/arc/include/asm/irqflags-arcv2.h
+++ b/arch/arc/include/asm/irqflags-arcv2.h
@@ -22,6 +22,7 @@
 #define AUX_IRQ_CTRL		0x00E
 #define AUX_IRQ_ACT		0x043	/* Active Intr across all levels */
 #define AUX_IRQ_LVL_PEND	0x200	/* Pending Intr across all levels */
+#define AUX_IRQ_HINT		0x201	/* For generating Soft Interrupts */
 #define AUX_IRQ_PRIORITY	0x206
 #define ICAUSE			0x40a
 #define AUX_IRQ_SELECT		0x40b
@@ -30,8 +31,11 @@
 /* Was Intr taken in User Mode */
 #define AUX_IRQ_ACT_BIT_U	31
 
-/* 0 is highest level, but taken by FIRQs, if present in design */
-#define ARCV2_IRQ_DEF_PRIO		0
+/*
+ * User space should be interruptable even by lowest prio interrupt
+ * Safe even if actual interrupt priorities is fewer or even one
+ */
+#define ARCV2_IRQ_DEF_PRIO	15
 
 /* seed value for status register */
 #define ISA_INIT_STATUS_BITS	(STATUS_IE_MASK | STATUS_AD_MASK | \
@@ -112,6 +116,16 @@ static inline int arch_irqs_disabled(void)
 	return arch_irqs_disabled_flags(arch_local_save_flags());
 }
 
+static inline void arc_softirq_trigger(int irq)
+{
+	write_aux_reg(AUX_IRQ_HINT, irq);
+}
+
+static inline void arc_softirq_clear(int irq)
+{
+	write_aux_reg(AUX_IRQ_HINT, 0);
+}
+
 #else
 
 .macro IRQ_DISABLE  scratch
diff --git a/arch/arc/include/asm/mcip.h b/arch/arc/include/asm/mcip.h
index 46f4e53..847e3bb 100644
--- a/arch/arc/include/asm/mcip.h
+++ b/arch/arc/include/asm/mcip.h
@@ -39,8 +39,8 @@ struct mcip_cmd {
 #define CMD_DEBUG_SET_MASK		0x34
 #define CMD_DEBUG_SET_SELECT		0x36
 
-#define CMD_GRTC_READ_LO		0x42
-#define CMD_GRTC_READ_HI		0x43
+#define CMD_GFRC_READ_LO		0x42
+#define CMD_GFRC_READ_HI		0x43
 
 #define CMD_IDU_ENABLE			0x71
 #define CMD_IDU_DISABLE			0x72
diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h
index 57af2f0..d426d42 100644
--- a/arch/arc/include/asm/pgtable.h
+++ b/arch/arc/include/asm/pgtable.h
@@ -179,37 +179,44 @@
 #define __S111  PAGE_U_X_W_R
 
 /****************************************************************
- * Page Table Lookup split
+ * 2 tier (PGD:PTE) software page walker
  *
- * We implement 2 tier paging and since this is all software, we are free
- * to customize the span of a PGD / PTE entry to suit us
- *
- *			32 bit virtual address
+ * [31]		    32 bit virtual address              [0]
  * -------------------------------------------------------
- * | BITS_FOR_PGD    |  BITS_FOR_PTE    |  BITS_IN_PAGE  |
+ * |               | <------------ PGDIR_SHIFT ----------> |
+ * |		   |					 |
+ * | BITS_FOR_PGD  |  BITS_FOR_PTE  | <-- PAGE_SHIFT --> |
  * -------------------------------------------------------
  *       |                  |                |
  *       |                  |                --> off in page frame
- *       |		    |
  *       |                  ---> index into Page Table
- *       |
  *       ----> index into Page Directory
+ *
+ * In a single page size configuration, only PAGE_SHIFT is fixed
+ * So both PGD and PTE sizing can be tweaked
+ *  e.g. 8K page (PAGE_SHIFT 13) can have
+ *  - PGDIR_SHIFT 21  -> 11:8:13 address split
+ *  - PGDIR_SHIFT 24  -> 8:11:13 address split
+ *
+ * If Super Page is configured, PGDIR_SHIFT becomes fixed too,
+ * so the sizing flexibility is gone.
  */
 
-#define BITS_IN_PAGE	PAGE_SHIFT
-
-/* Optimal Sizing of Pg Tbl - based on MMU page size */
-#if defined(CONFIG_ARC_PAGE_SIZE_8K)
-#define BITS_FOR_PTE	8		/* 11:8:13 */
-#elif defined(CONFIG_ARC_PAGE_SIZE_16K)
-#define BITS_FOR_PTE	8		/* 10:8:14 */
-#elif defined(CONFIG_ARC_PAGE_SIZE_4K)
-#define BITS_FOR_PTE	9		/* 11:9:12 */
+#if defined(CONFIG_ARC_HUGEPAGE_16M)
+#define PGDIR_SHIFT	24
+#elif defined(CONFIG_ARC_HUGEPAGE_2M)
+#define PGDIR_SHIFT	21
+#else
+/*
+ * Only Normal page support so "hackable" (see comment above)
+ * Default value provides 11:8:13 (8K), 11:9:12 (4K)
+ */
+#define PGDIR_SHIFT	21
 #endif
 
-#define BITS_FOR_PGD	(32 - BITS_FOR_PTE - BITS_IN_PAGE)
+#define BITS_FOR_PTE	(PGDIR_SHIFT - PAGE_SHIFT)
+#define BITS_FOR_PGD	(32 - PGDIR_SHIFT)
 
-#define PGDIR_SHIFT	(32 - BITS_FOR_PGD)
 #define PGDIR_SIZE	(1UL << PGDIR_SHIFT)	/* vaddr span, not PDG sz */
 #define PGDIR_MASK	(~(PGDIR_SIZE-1))
 
diff --git a/arch/arc/kernel/entry-arcv2.S b/arch/arc/kernel/entry-arcv2.S
index cbfec79..c126460 100644
--- a/arch/arc/kernel/entry-arcv2.S
+++ b/arch/arc/kernel/entry-arcv2.S
@@ -45,11 +45,12 @@ VECTOR	reserved		; Reserved slots
 VECTOR	handle_interrupt	; (16) Timer0
 VECTOR	handle_interrupt	; unused (Timer1)
 VECTOR	handle_interrupt	; unused (WDT)
-VECTOR	handle_interrupt	; (19) ICI (inter core interrupt)
-VECTOR	handle_interrupt
-VECTOR	handle_interrupt
-VECTOR	handle_interrupt
-VECTOR	handle_interrupt	; (23) End of fixed IRQs
+VECTOR	handle_interrupt	; (19) Inter core Interrupt (IPI)
+VECTOR	handle_interrupt	; (20) perf Interrupt
+VECTOR	handle_interrupt	; (21) Software Triggered Intr (Self IPI)
+VECTOR	handle_interrupt	; unused
+VECTOR	handle_interrupt	; (23) unused
+# End of fixed IRQs
 
 .rept CONFIG_ARC_NUMBER_OF_INTERRUPTS - 8
 	VECTOR	handle_interrupt
@@ -211,7 +212,11 @@ debug_marker_syscall:
 ; (since IRQ NOT allowed in DS in ARCv2, this can only happen if orig
 ; entry was via Exception in DS which got preempted in kernel).
 ;
-; IRQ RTIE won't reliably restore DE bit and/or BTA, needs handling
+; IRQ RTIE won't reliably restore DE bit and/or BTA, needs workaround
+;
+; Solution is return from Intr w/o any delay slot quirks into a kernel trampoline
+; and from pure kernel mode return to delay slot which handles DS bit/BTA correctly
+
 .Lintr_ret_to_delay_slot:
 debug_marker_ds:
 
@@ -222,18 +227,23 @@ debug_marker_ds:
 	ld	r2, [sp, PT_ret]
 	ld	r3, [sp, PT_status32]
 
+	; STAT32 for Int return created from scratch
+	; (No delay dlot, disable Further intr in trampoline)
+
 	bic  	r0, r3, STATUS_U_MASK|STATUS_DE_MASK|STATUS_IE_MASK|STATUS_L_MASK
 	st	r0, [sp, PT_status32]
 
 	mov	r1, .Lintr_ret_to_delay_slot_2
 	st	r1, [sp, PT_ret]
 
+	; Orig exception PC/STAT32 safekept @orig_r0 and @event stack slots
 	st	r2, [sp, 0]
 	st	r3, [sp, 4]
 
 	b	.Lisr_ret_fast_path
 
 .Lintr_ret_to_delay_slot_2:
+	; Trampoline to restore orig exception PC/STAT32/BTA/AUX_USER_SP
 	sub	sp, sp, SZ_PT_REGS
 	st	r9, [sp, -4]
 
@@ -243,11 +253,19 @@ debug_marker_ds:
 	ld	r9, [sp, 4]
 	sr	r9, [erstatus]
 
+	; restore AUX_USER_SP if returning to U mode
+	bbit0	r9, STATUS_U_BIT, 1f
+	ld	r9, [sp, PT_sp]
+	sr	r9, [AUX_USER_SP]
+
+1:
 	ld	r9, [sp, 8]
 	sr	r9, [erbta]
 
 	ld	r9, [sp, -4]
 	add	sp, sp, SZ_PT_REGS
+
+	; return from pure kernel mode to delay slot
 	rtie
 
 END(ret_from_exception)
diff --git a/arch/arc/kernel/intc-arcv2.c b/arch/arc/kernel/intc-arcv2.c
index 0394f9f..9425263 100644
--- a/arch/arc/kernel/intc-arcv2.c
+++ b/arch/arc/kernel/intc-arcv2.c
@@ -14,6 +14,8 @@
 #include <linux/irqchip.h>
 #include <asm/irq.h>
 
+static int irq_prio;
+
 /*
  * Early Hardware specific Interrupt setup
  * -Called very early (start_kernel -> setup_arch -> setup_processor)
@@ -24,6 +26,14 @@ void arc_init_IRQ(void)
 {
 	unsigned int tmp;
 
+	struct irq_build {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+		unsigned int pad:3, firq:1, prio:4, exts:8, irqs:8, ver:8;
+#else
+		unsigned int ver:8, irqs:8, exts:8, prio:4, firq:1, pad:3;
+#endif
+	} irq_bcr;
+
 	struct aux_irq_ctrl {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 		unsigned int res3:18, save_idx_regs:1, res2:1,
@@ -46,28 +56,25 @@ void arc_init_IRQ(void)
 
 	WRITE_AUX(AUX_IRQ_CTRL, ictrl);
 
-	/* setup status32, don't enable intr yet as kernel doesn't want */
-	tmp = read_aux_reg(0xa);
-	tmp |= ISA_INIT_STATUS_BITS;
-	tmp &= ~STATUS_IE_MASK;
-	asm volatile("flag %0	\n"::"r"(tmp));
-
 	/*
 	 * ARCv2 core intc provides multiple interrupt priorities (upto 16).
 	 * Typical builds though have only two levels (0-high, 1-low)
 	 * Linux by default uses lower prio 1 for most irqs, reserving 0 for
 	 * NMI style interrupts in future (say perf)
-	 *
-	 * Read the intc BCR to confirm that Linux default priority is avail
-	 * in h/w
-	 *
-	 * Note:
-	 *  IRQ_BCR[27..24] contains N-1 (for N priority levels) and prio level
-	 *  is 0 based.
 	 */
-	tmp = (read_aux_reg(ARC_REG_IRQ_BCR) >> 24 ) & 0xF;
-	if (ARCV2_IRQ_DEF_PRIO > tmp)
-		panic("Linux default irq prio incorrect\n");
+
+	READ_BCR(ARC_REG_IRQ_BCR, irq_bcr);
+
+	irq_prio = irq_bcr.prio;	/* Encoded as N-1 for N levels */
+	pr_info("archs-intc\t: %d priority levels (default %d)%s\n",
+		irq_prio + 1, irq_prio,
+		irq_bcr.firq ? " FIRQ (not used)":"");
+
+	/* setup status32, don't enable intr yet as kernel doesn't want */
+	tmp = read_aux_reg(0xa);
+	tmp |= STATUS_AD_MASK | (irq_prio << 1);
+	tmp &= ~STATUS_IE_MASK;
+	asm volatile("flag %0	\n"::"r"(tmp));
 }
 
 static void arcv2_irq_mask(struct irq_data *data)
@@ -86,7 +93,7 @@ void arcv2_irq_enable(struct irq_data *data)
 {
 	/* set default priority */
 	write_aux_reg(AUX_IRQ_SELECT, data->irq);
-	write_aux_reg(AUX_IRQ_PRIORITY, ARCV2_IRQ_DEF_PRIO);
+	write_aux_reg(AUX_IRQ_PRIORITY, irq_prio);
 
 	/*
 	 * hw auto enables (linux unmask) all by default
diff --git a/arch/arc/kernel/intc-compact.c b/arch/arc/kernel/intc-compact.c
index 06bcedf..224d1c3 100644
--- a/arch/arc/kernel/intc-compact.c
+++ b/arch/arc/kernel/intc-compact.c
@@ -81,9 +81,6 @@ static int arc_intc_domain_map(struct irq_domain *d, unsigned int irq,
 {
 	switch (irq) {
 	case TIMER0_IRQ:
-#ifdef CONFIG_SMP
-	case IPI_IRQ:
-#endif
 		irq_set_chip_and_handler(irq, &onchip_intc, handle_percpu_irq);
 		break;
 	default:
diff --git a/arch/arc/kernel/mcip.c b/arch/arc/kernel/mcip.c
index bd237ac..c41c364 100644
--- a/arch/arc/kernel/mcip.c
+++ b/arch/arc/kernel/mcip.c
@@ -11,9 +11,13 @@
 #include <linux/smp.h>
 #include <linux/irq.h>
 #include <linux/spinlock.h>
+#include <asm/irqflags-arcv2.h>
 #include <asm/mcip.h>
 #include <asm/setup.h>
 
+#define IPI_IRQ		19
+#define SOFTIRQ_IRQ	21
+
 static char smp_cpuinfo_buf[128];
 static int idu_detected;
 
@@ -22,6 +26,7 @@ static DEFINE_RAW_SPINLOCK(mcip_lock);
 static void mcip_setup_per_cpu(int cpu)
 {
 	smp_ipi_irq_setup(cpu, IPI_IRQ);
+	smp_ipi_irq_setup(cpu, SOFTIRQ_IRQ);
 }
 
 static void mcip_ipi_send(int cpu)
@@ -29,46 +34,44 @@ static void mcip_ipi_send(int cpu)
 	unsigned long flags;
 	int ipi_was_pending;
 
+	/* ARConnect can only send IPI to others */
+	if (unlikely(cpu == raw_smp_processor_id())) {
+		arc_softirq_trigger(SOFTIRQ_IRQ);
+		return;
+	}
+
+	raw_spin_lock_irqsave(&mcip_lock, flags);
+
 	/*
-	 * NOTE: We must spin here if the other cpu hasn't yet
-	 * serviced a previous message. This can burn lots
-	 * of time, but we MUST follows this protocol or
-	 * ipi messages can be lost!!!
-	 * Also, we must release the lock in this loop because
-	 * the other side may get to this same loop and not
-	 * be able to ack -- thus causing deadlock.
+	 * If receiver already has a pending interrupt, elide sending this one.
+	 * Linux cross core calling works well with concurrent IPIs
+	 * coalesced into one
+	 * see arch/arc/kernel/smp.c: ipi_send_msg_one()
 	 */
+	__mcip_cmd(CMD_INTRPT_READ_STATUS, cpu);
+	ipi_was_pending = read_aux_reg(ARC_REG_MCIP_READBACK);
+	if (!ipi_was_pending)
+		__mcip_cmd(CMD_INTRPT_GENERATE_IRQ, cpu);
 
-	do {
-		raw_spin_lock_irqsave(&mcip_lock, flags);
-		__mcip_cmd(CMD_INTRPT_READ_STATUS, cpu);
-		ipi_was_pending = read_aux_reg(ARC_REG_MCIP_READBACK);
-		if (ipi_was_pending == 0)
-			break; /* break out but keep lock */
-		raw_spin_unlock_irqrestore(&mcip_lock, flags);
-	} while (1);
-
-	__mcip_cmd(CMD_INTRPT_GENERATE_IRQ, cpu);
 	raw_spin_unlock_irqrestore(&mcip_lock, flags);
-
-#ifdef CONFIG_ARC_IPI_DBG
-	if (ipi_was_pending)
-		pr_info("IPI ACK delayed from cpu %d\n", cpu);
-#endif
 }
 
 static void mcip_ipi_clear(int irq)
 {
 	unsigned int cpu, c;
 	unsigned long flags;
-	unsigned int __maybe_unused copy;
+
+	if (unlikely(irq == SOFTIRQ_IRQ)) {
+		arc_softirq_clear(irq);
+		return;
+	}
 
 	raw_spin_lock_irqsave(&mcip_lock, flags);
 
 	/* Who sent the IPI */
 	__mcip_cmd(CMD_INTRPT_CHECK_SOURCE, 0);
 
-	copy = cpu = read_aux_reg(ARC_REG_MCIP_READBACK);	/* 1,2,4,8... */
+	cpu = read_aux_reg(ARC_REG_MCIP_READBACK);	/* 1,2,4,8... */
 
 	/*
 	 * In rare case, multiple concurrent IPIs sent to same target can
@@ -82,12 +85,6 @@ static void mcip_ipi_clear(int irq)
 	} while (cpu);
 
 	raw_spin_unlock_irqrestore(&mcip_lock, flags);
-
-#ifdef CONFIG_ARC_IPI_DBG
-	if (c != __ffs(copy))
-		pr_info("IPIs from %x coalesced to %x\n",
-			copy, raw_smp_processor_id());
-#endif
 }
 
 static void mcip_probe_n_setup(void)
@@ -96,13 +93,13 @@ static void mcip_probe_n_setup(void)
 #ifdef CONFIG_CPU_BIG_ENDIAN
 		unsigned int pad3:8,
 			     idu:1, llm:1, num_cores:6,
-			     iocoh:1,  grtc:1, dbg:1, pad2:1,
+			     iocoh:1,  gfrc:1, dbg:1, pad2:1,
 			     msg:1, sem:1, ipi:1, pad:1,
 			     ver:8;
 #else
 		unsigned int ver:8,
 			     pad:1, ipi:1, sem:1, msg:1,
-			     pad2:1, dbg:1, grtc:1, iocoh:1,
+			     pad2:1, dbg:1, gfrc:1, iocoh:1,
 			     num_cores:6, llm:1, idu:1,
 			     pad3:8;
 #endif
@@ -111,12 +108,13 @@ static void mcip_probe_n_setup(void)
 	READ_BCR(ARC_REG_MCIP_BCR, mp);
 
 	sprintf(smp_cpuinfo_buf,
-		"Extn [SMP]\t: ARConnect (v%d): %d cores with %s%s%s%s\n",
+		"Extn [SMP]\t: ARConnect (v%d): %d cores with %s%s%s%s%s\n",
 		mp.ver, mp.num_cores,
 		IS_AVAIL1(mp.ipi, "IPI "),
 		IS_AVAIL1(mp.idu, "IDU "),
+		IS_AVAIL1(mp.llm, "LLM "),
 		IS_AVAIL1(mp.dbg, "DEBUG "),
-		IS_AVAIL1(mp.grtc, "GRTC"));
+		IS_AVAIL1(mp.gfrc, "GFRC"));
 
 	idu_detected = mp.idu;
 
@@ -125,8 +123,8 @@ static void mcip_probe_n_setup(void)
 		__mcip_cmd_data(CMD_DEBUG_SET_MASK, 0xf, 0xf);
 	}
 
-	if (IS_ENABLED(CONFIG_ARC_HAS_GRTC) && !mp.grtc)
-		panic("kernel trying to use non-existent GRTC\n");
+	if (IS_ENABLED(CONFIG_ARC_HAS_GFRC) && !mp.gfrc)
+		panic("kernel trying to use non-existent GFRC\n");
 }
 
 struct plat_smp_ops plat_smp_ops = {
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index e1b8744..cdc821d 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -42,9 +42,57 @@ struct task_struct *_current_task[NR_CPUS];	/* For stack switching */
 
 struct cpuinfo_arc cpuinfo_arc700[NR_CPUS];
 
+static void read_decode_ccm_bcr(struct cpuinfo_arc *cpu)
+{
+	if (is_isa_arcompact()) {
+		struct bcr_iccm_arcompact iccm;
+		struct bcr_dccm_arcompact dccm;
+
+		READ_BCR(ARC_REG_ICCM_BUILD, iccm);
+		if (iccm.ver) {
+			cpu->iccm.sz = 4096 << iccm.sz;	/* 8K to 512K */
+			cpu->iccm.base_addr = iccm.base << 16;
+		}
+
+		READ_BCR(ARC_REG_DCCM_BUILD, dccm);
+		if (dccm.ver) {
+			unsigned long base;
+			cpu->dccm.sz = 2048 << dccm.sz;	/* 2K to 256K */
+
+			base = read_aux_reg(ARC_REG_DCCM_BASE_BUILD);
+			cpu->dccm.base_addr = base & ~0xF;
+		}
+	} else {
+		struct bcr_iccm_arcv2 iccm;
+		struct bcr_dccm_arcv2 dccm;
+		unsigned long region;
+
+		READ_BCR(ARC_REG_ICCM_BUILD, iccm);
+		if (iccm.ver) {
+			cpu->iccm.sz = 256 << iccm.sz00;	/* 512B to 16M */
+			if (iccm.sz00 == 0xF && iccm.sz01 > 0)
+				cpu->iccm.sz <<= iccm.sz01;
+
+			region = read_aux_reg(ARC_REG_AUX_ICCM);
+			cpu->iccm.base_addr = region & 0xF0000000;
+		}
+
+		READ_BCR(ARC_REG_DCCM_BUILD, dccm);
+		if (dccm.ver) {
+			cpu->dccm.sz = 256 << dccm.sz0;
+			if (dccm.sz0 == 0xF && dccm.sz1 > 0)
+				cpu->dccm.sz <<= dccm.sz1;
+
+			region = read_aux_reg(ARC_REG_AUX_DCCM);
+			cpu->dccm.base_addr = region & 0xF0000000;
+		}
+	}
+}
+
 static void read_arc_build_cfg_regs(void)
 {
 	struct bcr_perip uncached_space;
+	struct bcr_timer timer;
 	struct bcr_generic bcr;
 	struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
 	unsigned long perip_space;
@@ -53,7 +101,11 @@ static void read_arc_build_cfg_regs(void)
 	READ_BCR(AUX_IDENTITY, cpu->core);
 	READ_BCR(ARC_REG_ISA_CFG_BCR, cpu->isa);
 
-	READ_BCR(ARC_REG_TIMERS_BCR, cpu->timers);
+	READ_BCR(ARC_REG_TIMERS_BCR, timer);
+	cpu->extn.timer0 = timer.t0;
+	cpu->extn.timer1 = timer.t1;
+	cpu->extn.rtc = timer.rtc;
+
 	cpu->vec_base = read_aux_reg(AUX_INTR_VEC_BASE);
 
 	READ_BCR(ARC_REG_D_UNCACH_BCR, uncached_space);
@@ -71,36 +123,11 @@ static void read_arc_build_cfg_regs(void)
 	cpu->extn.swap = read_aux_reg(ARC_REG_SWAP_BCR) ? 1 : 0;        /* 1,3 */
 	cpu->extn.crc = read_aux_reg(ARC_REG_CRC_BCR) ? 1 : 0;
 	cpu->extn.minmax = read_aux_reg(ARC_REG_MIXMAX_BCR) > 1 ? 1 : 0; /* 2 */
-
-	/* Note that we read the CCM BCRs independent of kernel config
-	 * This is to catch the cases where user doesn't know that
-	 * CCMs are present in hardware build
-	 */
-	{
-		struct bcr_iccm iccm;
-		struct bcr_dccm dccm;
-		struct bcr_dccm_base dccm_base;
-		unsigned int bcr_32bit_val;
-
-		bcr_32bit_val = read_aux_reg(ARC_REG_ICCM_BCR);
-		if (bcr_32bit_val) {
-			iccm = *((struct bcr_iccm *)&bcr_32bit_val);
-			cpu->iccm.base_addr = iccm.base << 16;
-			cpu->iccm.sz = 0x2000 << (iccm.sz - 1);
-		}
-
-		bcr_32bit_val = read_aux_reg(ARC_REG_DCCM_BCR);
-		if (bcr_32bit_val) {
-			dccm = *((struct bcr_dccm *)&bcr_32bit_val);
-			cpu->dccm.sz = 0x800 << (dccm.sz);
-
-			READ_BCR(ARC_REG_DCCMBASE_BCR, dccm_base);
-			cpu->dccm.base_addr = dccm_base.addr << 8;
-		}
-	}
-
 	READ_BCR(ARC_REG_XY_MEM_BCR, cpu->extn_xymem);
 
+	/* Read CCM BCRs for boot reporting even if not enabled in Kconfig */
+	read_decode_ccm_bcr(cpu);
+
 	read_decode_mmu_bcr();
 	read_decode_cache_bcr();
 
@@ -208,9 +235,9 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
 		       (unsigned int)(arc_get_core_freq() / 10000) % 100);
 
 	n += scnprintf(buf + n, len - n, "Timers\t\t: %s%s%s%s\nISA Extn\t: ",
-		       IS_AVAIL1(cpu->timers.t0, "Timer0 "),
-		       IS_AVAIL1(cpu->timers.t1, "Timer1 "),
-		       IS_AVAIL2(cpu->timers.rtc, "64-bit RTC ",
+		       IS_AVAIL1(cpu->extn.timer0, "Timer0 "),
+		       IS_AVAIL1(cpu->extn.timer1, "Timer1 "),
+		       IS_AVAIL2(cpu->extn.rtc, "Local-64-bit-Ctr ",
 				 CONFIG_ARC_HAS_RTC));
 
 	n += i = scnprintf(buf + n, len - n, "%s%s%s%s%s",
@@ -232,8 +259,6 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
 
 			n += scnprintf(buf + n, len - n, "mpy[opt %d] ", opt);
 		}
-		n += scnprintf(buf + n, len - n, "%s",
-			       IS_USED_CFG(CONFIG_ARC_HAS_HW_MPY));
 	}
 
 	n += scnprintf(buf + n, len - n, "%s%s%s%s%s%s%s%s\n",
@@ -293,13 +318,13 @@ static void arc_chk_core_config(void)
 	struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
 	int fpu_enabled;
 
-	if (!cpu->timers.t0)
+	if (!cpu->extn.timer0)
 		panic("Timer0 is not present!\n");
 
-	if (!cpu->timers.t1)
+	if (!cpu->extn.timer1)
 		panic("Timer1 is not present!\n");
 
-	if (IS_ENABLED(CONFIG_ARC_HAS_RTC) && !cpu->timers.rtc)
+	if (IS_ENABLED(CONFIG_ARC_HAS_RTC) && !cpu->extn.rtc)
 		panic("RTC is not present\n");
 
 #ifdef CONFIG_ARC_HAS_DCCM
@@ -334,6 +359,7 @@ static void arc_chk_core_config(void)
 		panic("FPU non-existent, disable CONFIG_ARC_FPU_SAVE_RESTORE\n");
 
 	if (is_isa_arcv2() && IS_ENABLED(CONFIG_SMP) && cpu->isa.atomic &&
+	    IS_ENABLED(CONFIG_ARC_HAS_LLSC) &&
 	    !IS_ENABLED(CONFIG_ARC_STAR_9000923308))
 		panic("llock/scond livelock workaround missing\n");
 }
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index ef6e9e1..424e937 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -336,11 +336,8 @@ irqreturn_t do_IPI(int irq, void *dev_id)
 		int rc;
 
 		rc = __do_IPI(msg);
-#ifdef CONFIG_ARC_IPI_DBG
-		/* IPI received but no valid @msg */
 		if (rc)
 			pr_info("IPI with bogus msg %ld in %ld\n", msg, copy);
-#endif
 		pending &= ~(1U << msg);
 	} while (pending);
 
diff --git a/arch/arc/kernel/time.c b/arch/arc/kernel/time.c
index dfad287..156d983 100644
--- a/arch/arc/kernel/time.c
+++ b/arch/arc/kernel/time.c
@@ -62,7 +62,7 @@
 
 /********** Clock Source Device *********/
 
-#ifdef CONFIG_ARC_HAS_GRTC
+#ifdef CONFIG_ARC_HAS_GFRC
 
 static int arc_counter_setup(void)
 {
@@ -83,10 +83,10 @@ static cycle_t arc_counter_read(struct clocksource *cs)
 
 	local_irq_save(flags);
 
-	__mcip_cmd(CMD_GRTC_READ_LO, 0);
+	__mcip_cmd(CMD_GFRC_READ_LO, 0);
 	stamp.l = read_aux_reg(ARC_REG_MCIP_READBACK);
 
-	__mcip_cmd(CMD_GRTC_READ_HI, 0);
+	__mcip_cmd(CMD_GFRC_READ_HI, 0);
 	stamp.h = read_aux_reg(ARC_REG_MCIP_READBACK);
 
 	local_irq_restore(flags);
@@ -95,7 +95,7 @@ static cycle_t arc_counter_read(struct clocksource *cs)
 }
 
 static struct clocksource arc_counter = {
-	.name   = "ARConnect GRTC",
+	.name   = "ARConnect GFRC",
 	.rating = 400,
 	.read   = arc_counter_read,
 	.mask   = CLOCKSOURCE_MASK(64),
diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index f3db13d..0cc150b 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -285,8 +285,10 @@
 	};
 };
 
+
+/include/ "tps65217.dtsi"
+
 &tps {
-	compatible = "ti,tps65217";
 	/*
 	 * Configure pmic to enter OFF-state instead of SLEEP-state ("RTC-only
 	 * mode") at poweroff.  Most BeagleBone versions do not support RTC-only
@@ -307,17 +309,12 @@
 	ti,pmic-shutdown-controller;
 
 	regulators {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
 		dcdc1_reg: regulator@0 {
-			reg = <0>;
 			regulator-name = "vdds_dpr";
 			regulator-always-on;
 		};
 
 		dcdc2_reg: regulator@1 {
-			reg = <1>;
 			/* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */
 			regulator-name = "vdd_mpu";
 			regulator-min-microvolt = <925000>;
@@ -327,7 +324,6 @@
 		};
 
 		dcdc3_reg: regulator@2 {
-			reg = <2>;
 			/* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */
 			regulator-name = "vdd_core";
 			regulator-min-microvolt = <925000>;
@@ -337,25 +333,21 @@
 		};
 
 		ldo1_reg: regulator@3 {
-			reg = <3>;
 			regulator-name = "vio,vrtc,vdds";
 			regulator-always-on;
 		};
 
 		ldo2_reg: regulator@4 {
-			reg = <4>;
 			regulator-name = "vdd_3v3aux";
 			regulator-always-on;
 		};
 
 		ldo3_reg: regulator@5 {
-			reg = <5>;
 			regulator-name = "vdd_1v8";
 			regulator-always-on;
 		};
 
 		ldo4_reg: regulator@6 {
-			reg = <6>;
 			regulator-name = "vdd_3v3a";
 			regulator-always-on;
 		};
diff --git a/arch/arm/boot/dts/am335x-chilisom.dtsi b/arch/arm/boot/dts/am335x-chilisom.dtsi
index fda457b..857d989 100644
--- a/arch/arm/boot/dts/am335x-chilisom.dtsi
+++ b/arch/arm/boot/dts/am335x-chilisom.dtsi
@@ -128,21 +128,16 @@
 
 };
 
-&tps {
-	compatible = "ti,tps65217";
+/include/ "tps65217.dtsi"
 
+&tps {
 	regulators {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
 		dcdc1_reg: regulator@0 {
-			reg = <0>;
 			regulator-name = "vdds_dpr";
 			regulator-always-on;
 		};
 
 		dcdc2_reg: regulator@1 {
-			reg = <1>;
 			/* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */
 			regulator-name = "vdd_mpu";
 			regulator-min-microvolt = <925000>;
@@ -152,7 +147,6 @@
 		};
 
 		dcdc3_reg: regulator@2 {
-			reg = <2>;
 			/* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */
 			regulator-name = "vdd_core";
 			regulator-min-microvolt = <925000>;
@@ -162,28 +156,24 @@
 		};
 
 		ldo1_reg: regulator@3 {
-			reg = <3>;
 			regulator-name = "vio,vrtc,vdds";
 			regulator-boot-on;
 			regulator-always-on;
 		};
 
 		ldo2_reg: regulator@4 {
-			reg = <4>;
 			regulator-name = "vdd_3v3aux";
 			regulator-boot-on;
 			regulator-always-on;
 		};
 
 		ldo3_reg: regulator@5 {
-			reg = <5>;
 			regulator-name = "vdd_1v8";
 			regulator-boot-on;
 			regulator-always-on;
 		};
 
 		ldo4_reg: regulator@6 {
-			reg = <6>;
 			regulator-name = "vdd_3v3d";
 			regulator-boot-on;
 			regulator-always-on;
diff --git a/arch/arm/boot/dts/am335x-nano.dts b/arch/arm/boot/dts/am335x-nano.dts
index 77559a1..f313999 100644
--- a/arch/arm/boot/dts/am335x-nano.dts
+++ b/arch/arm/boot/dts/am335x-nano.dts
@@ -375,15 +375,11 @@
 	wp-gpios = <&gpio3 18 0>;
 };
 
-&tps {
-	compatible = "ti,tps65217";
+#include "tps65217.dtsi"
 
+&tps {
 	regulators {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
 		dcdc1_reg: regulator@0 {
-			reg = <0>;
 			/* +1.5V voltage with ±4% tolerance */
 			regulator-min-microvolt = <1450000>;
 			regulator-max-microvolt = <1550000>;
@@ -392,7 +388,6 @@
 		};
 
 		dcdc2_reg: regulator@1 {
-			reg = <1>;
 			/* VDD_MPU voltage limits 0.95V - 1.1V with ±4% tolerance */
 			regulator-name = "vdd_mpu";
 			regulator-min-microvolt = <915000>;
@@ -402,7 +397,6 @@
 		};
 
 		dcdc3_reg: regulator@2 {
-			reg = <2>;
 			/* VDD_CORE voltage limits 0.95V - 1.1V with ±4% tolerance */
 			regulator-name = "vdd_core";
 			regulator-min-microvolt = <915000>;
@@ -412,7 +406,6 @@
 		};
 
 		ldo1_reg: regulator@3 {
-			reg = <3>;
 			/* +1.8V voltage with ±4% tolerance */
 			regulator-min-microvolt = <1750000>;
 			regulator-max-microvolt = <1870000>;
@@ -421,7 +414,6 @@
 		};
 
 		ldo2_reg: regulator@4 {
-			reg = <4>;
 			/* +3.3V voltage with ±4% tolerance */
 			regulator-min-microvolt = <3175000>;
 			regulator-max-microvolt = <3430000>;
@@ -430,7 +422,6 @@
 		};
 
 		ldo3_reg: regulator@5 {
-			reg = <5>;
 			/* +1.8V voltage with ±4% tolerance */
 			regulator-min-microvolt = <1750000>;
 			regulator-max-microvolt = <1870000>;
@@ -439,7 +430,6 @@
 		};
 
 		ldo4_reg: regulator@6 {
-			reg = <6>;
 			/* +3.3V voltage with ±4% tolerance */
 			regulator-min-microvolt = <3175000>;
 			regulator-max-microvolt = <3430000>;
diff --git a/arch/arm/boot/dts/am335x-pepper.dts b/arch/arm/boot/dts/am335x-pepper.dts
index 471a3a7..8867aaa 100644
--- a/arch/arm/boot/dts/am335x-pepper.dts
+++ b/arch/arm/boot/dts/am335x-pepper.dts
@@ -420,9 +420,9 @@
 	vin-supply = <&vbat>;
 };
 
-&tps {
-	compatible = "ti,tps65217";
+/include/ "tps65217.dtsi"
 
+&tps {
 	backlight {
 		isel = <1>; /* ISET1 */
 		fdim = <200>; /* TPS65217_BL_FDIM_200HZ */
@@ -430,17 +430,12 @@
 	};
 
 	regulators {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
 		dcdc1_reg: regulator@0 {
-			reg = <0>;
 			/* VDD_1V8 system supply */
 			regulator-always-on;
 		};
 
 		dcdc2_reg: regulator@1 {
-			reg = <1>;
 			/* VDD_CORE voltage limits 0.95V - 1.26V with +/-4% tolerance */
 			regulator-name = "vdd_core";
 			regulator-min-microvolt = <925000>;
@@ -450,7 +445,6 @@
 		};
 
 		dcdc3_reg: regulator@2 {
-			reg = <2>;
 			/* VDD_MPU voltage limits 0.95V - 1.1V with +/-4% tolerance */
 			regulator-name = "vdd_mpu";
 			regulator-min-microvolt = <925000>;
@@ -460,21 +454,18 @@
 		};
 
 		ldo1_reg: regulator@3 {
-			reg = <3>;
 			/* VRTC 1.8V always-on supply */
 			regulator-name = "vrtc,vdds";
 			regulator-always-on;
 		};
 
 		ldo2_reg: regulator@4 {
-			reg = <4>;
 			/* 3.3V rail */
 			regulator-name = "vdd_3v3aux";
 			regulator-always-on;
 		};
 
 		ldo3_reg: regulator@5 {
-			reg = <5>;
 			/* VDD_3V3A 3.3V rail */
 			regulator-name = "vdd_3v3a";
 			regulator-min-microvolt = <3300000>;
@@ -482,7 +473,6 @@
 		};
 
 		ldo4_reg: regulator@6 {
-			reg = <6>;
 			/* VDD_3V3B 3.3V rail */
 			regulator-name = "vdd_3v3b";
 			regulator-always-on;
diff --git a/arch/arm/boot/dts/am335x-shc.dts b/arch/arm/boot/dts/am335x-shc.dts
index 1b5b044..865de85 100644
--- a/arch/arm/boot/dts/am335x-shc.dts
+++ b/arch/arm/boot/dts/am335x-shc.dts
@@ -46,7 +46,7 @@
 			gpios = <&gpio1 29 GPIO_ACTIVE_HIGH>;
 			linux,code = <KEY_BACK>;
 			debounce-interval = <1000>;
-			gpio-key,wakeup;
+			wakeup-source;
 		};
 
 		front_button {
@@ -54,7 +54,7 @@
 			gpios = <&gpio1 25 GPIO_ACTIVE_HIGH>;
 			linux,code = <KEY_FRONT>;
 			debounce-interval = <1000>;
-			gpio-key,wakeup;
+			wakeup-source;
 		};
 	};
 
diff --git a/arch/arm/boot/dts/am335x-sl50.dts b/arch/arm/boot/dts/am335x-sl50.dts
index d38edfa..3303c28 100644
--- a/arch/arm/boot/dts/am335x-sl50.dts
+++ b/arch/arm/boot/dts/am335x-sl50.dts
@@ -375,19 +375,16 @@
 	pinctrl-0 = <&uart4_pins>;
 };
 
+#include "tps65217.dtsi"
+
 &tps {
-	compatible = "ti,tps65217";
 	ti,pmic-shutdown-controller;
 
 	interrupt-parent = <&intc>;
 	interrupts = <7>;	/* NNMI */
 
 	regulators {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
 		dcdc1_reg: regulator@0 {
-			reg = <0>;
 			/* VDDS_DDR */
 			regulator-min-microvolt = <1500000>;
 			regulator-max-microvolt = <1500000>;
@@ -395,7 +392,6 @@
 		};
 
 		dcdc2_reg: regulator@1 {
-			reg = <1>;
 			/* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */
 			regulator-name = "vdd_mpu";
 			regulator-min-microvolt = <925000>;
@@ -405,7 +401,6 @@
 		};
 
 		dcdc3_reg: regulator@2 {
-			reg = <2>;
 			/* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */
 			regulator-name = "vdd_core";
 			regulator-min-microvolt = <925000>;
@@ -415,7 +410,6 @@
 		};
 
 		ldo1_reg: regulator@3 {
-			reg = <3>;
 			/* VRTC / VIO / VDDS*/
 			regulator-always-on;
 			regulator-min-microvolt = <1800000>;
@@ -423,7 +417,6 @@
 		};
 
 		ldo2_reg: regulator@4 {
-			reg = <4>;
 			/* VDD_3V3AUX */
 			regulator-always-on;
 			regulator-min-microvolt = <3300000>;
@@ -431,7 +424,6 @@
 		};
 
 		ldo3_reg: regulator@5 {
-			reg = <5>;
 			/* VDD_1V8 */
 			regulator-min-microvolt = <1800000>;
 			regulator-max-microvolt = <1800000>;
@@ -439,7 +431,6 @@
 		};
 
 		ldo4_reg: regulator@6 {
-			reg = <6>;
 			/* VDD_3V3A */
 			regulator-min-microvolt = <3300000>;
 			regulator-max-microvolt = <3300000>;
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index 36c0fa6..a0986c6 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -173,6 +173,8 @@
 
 		sound0_master: simple-audio-card,codec {
 			sound-dai = <&tlv320aic3104>;
+			assigned-clocks = <&clkoutmux2_clk_mux>;
+			assigned-clock-parents = <&sys_clk2_dclk_div>;
 			clocks = <&clkout2_clk>;
 		};
 	};
@@ -796,6 +798,8 @@
 	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <&mcasp3_pins_default>;
 	pinctrl-1 = <&mcasp3_pins_sleep>;
+	assigned-clocks = <&mcasp3_ahclkx_mux>;
+	assigned-clock-parents = <&sys_clkin2>;
 	status = "okay";
 
 	op-mode = <0>;	/* MCASP_IIS_MODE */
diff --git a/arch/arm/boot/dts/am57xx-cl-som-am57x.dts b/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
index 8d93882..1c06cb7 100644
--- a/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
+++ b/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
@@ -545,7 +545,7 @@
 		ti,debounce-tol = /bits/ 16 <10>;
 		ti,debounce-rep = /bits/ 16 <1>;
 
-		linux,wakeup;
+		wakeup-source;
 	};
 };
 
diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 4f6ae92..f74d3db 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -896,7 +896,6 @@
 				#size-cells = <1>;
 				reg = <0x2100000 0x10000>;
 				ranges = <0 0x2100000 0x10000>;
-				interrupt-parent = <&intc>;
 				clocks = <&clks IMX6QDL_CLK_CAAM_MEM>,
 					 <&clks IMX6QDL_CLK_CAAM_ACLK>,
 					 <&clks IMX6QDL_CLK_CAAM_IPG>,
diff --git a/arch/arm/boot/dts/kirkwood-ds112.dts b/arch/arm/boot/dts/kirkwood-ds112.dts
index bf4143c..b84af3d 100644
--- a/arch/arm/boot/dts/kirkwood-ds112.dts
+++ b/arch/arm/boot/dts/kirkwood-ds112.dts
@@ -14,7 +14,7 @@
 #include "kirkwood-synology.dtsi"
 
 / {
-	model = "Synology DS111";
+	model = "Synology DS112";
 	compatible = "synology,ds111", "marvell,kirkwood";
 
 	memory {
diff --git a/arch/arm/boot/dts/orion5x-linkstation-lswtgl.dts b/arch/arm/boot/dts/orion5x-linkstation-lswtgl.dts
index 4207882..aae8a7a 100644
--- a/arch/arm/boot/dts/orion5x-linkstation-lswtgl.dts
+++ b/arch/arm/boot/dts/orion5x-linkstation-lswtgl.dts
@@ -228,6 +228,37 @@
 	};
 };
 
+&devbus_bootcs {
+	status = "okay";
+	devbus,keep-config;
+
+	flash@0 {
+		compatible = "jedec-flash";
+		reg = <0 0x40000>;
+		bank-width = <1>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			header@0 {
+				reg = <0 0x30000>;
+				read-only;
+			};
+
+			uboot@30000 {
+				reg = <0x30000 0xF000>;
+				read-only;
+			};
+
+			uboot_env@3F000 {
+				reg = <0x3F000 0x1000>;
+			};
+		};
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/sama5d2-pinfunc.h b/arch/arm/boot/dts/sama5d2-pinfunc.h
index 1afe246..b0c912fe 100644
--- a/arch/arm/boot/dts/sama5d2-pinfunc.h
+++ b/arch/arm/boot/dts/sama5d2-pinfunc.h
@@ -90,7 +90,7 @@
 #define PIN_PA14__I2SC1_MCK		PINMUX_PIN(PIN_PA14, 4, 2)
 #define PIN_PA14__FLEXCOM3_IO2		PINMUX_PIN(PIN_PA14, 5, 1)
 #define PIN_PA14__D9			PINMUX_PIN(PIN_PA14, 6, 2)
-#define PIN_PA15			14
+#define PIN_PA15			15
 #define PIN_PA15__GPIO			PINMUX_PIN(PIN_PA15, 0, 0)
 #define PIN_PA15__SPI0_MOSI		PINMUX_PIN(PIN_PA15, 1, 1)
 #define PIN_PA15__TF1			PINMUX_PIN(PIN_PA15, 2, 1)
diff --git a/arch/arm/boot/dts/tps65217.dtsi b/arch/arm/boot/dts/tps65217.dtsi
new file mode 100644
index 0000000..a632724
--- /dev/null
+++ b/arch/arm/boot/dts/tps65217.dtsi
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * Integrated Power Management Chip
+ * http://www.ti.com/lit/ds/symlink/tps65217.pdf
+ */
+
+&tps {
+	compatible = "ti,tps65217";
+
+	regulators {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		dcdc1_reg: regulator@0 {
+			reg = <0>;
+			regulator-compatible = "dcdc1";
+		};
+
+		dcdc2_reg: regulator@1 {
+			reg = <1>;
+			regulator-compatible = "dcdc2";
+		};
+
+		dcdc3_reg: regulator@2 {
+			reg = <2>;
+			regulator-compatible = "dcdc3";
+		};
+
+		ldo1_reg: regulator@3 {
+			reg = <3>;
+			regulator-compatible = "ldo1";
+		};
+
+		ldo2_reg: regulator@4 {
+			reg = <4>;
+			regulator-compatible = "ldo2";
+		};
+
+		ldo3_reg: regulator@5 {
+			reg = <5>;
+			regulator-compatible = "ldo3";
+		};
+
+		ldo4_reg: regulator@6 {
+			reg = <6>;
+			regulator-compatible = "ldo4";
+		};
+	};
+};
diff --git a/arch/arm/common/icst.c b/arch/arm/common/icst.c
index 2dc6da70..d7ed252 100644
--- a/arch/arm/common/icst.c
+++ b/arch/arm/common/icst.c
@@ -16,7 +16,7 @@
  */
 #include <linux/module.h>
 #include <linux/kernel.h>
-
+#include <asm/div64.h>
 #include <asm/hardware/icst.h>
 
 /*
@@ -29,7 +29,11 @@ EXPORT_SYMBOL(icst525_s2div);
 
 unsigned long icst_hz(const struct icst_params *p, struct icst_vco vco)
 {
-	return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * p->s2div[vco.s]);
+	u64 dividend = p->ref * 2 * (u64)(vco.v + 8);
+	u32 divisor = (vco.r + 2) * p->s2div[vco.s];
+
+	do_div(dividend, divisor);
+	return (unsigned long)dividend;
 }
 
 EXPORT_SYMBOL(icst_hz);
@@ -58,6 +62,7 @@ icst_hz_to_vco(const struct icst_params *p, unsigned long freq)
 
 		if (f > p->vco_min && f <= p->vco_max)
 			break;
+		i++;
 	} while (i < 8);
 
 	if (i >= 8)
diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index a715174..d18d6b4 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -292,24 +292,23 @@ CONFIG_FB=y
 CONFIG_FIRMWARE_EDID=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_TILEBLITTING=y
-CONFIG_OMAP2_DSS=m
-CONFIG_OMAP5_DSS_HDMI=y
-CONFIG_OMAP2_DSS_SDI=y
-CONFIG_OMAP2_DSS_DSI=y
+CONFIG_FB_OMAP5_DSS_HDMI=y
+CONFIG_FB_OMAP2_DSS_SDI=y
+CONFIG_FB_OMAP2_DSS_DSI=y
 CONFIG_FB_OMAP2=m
-CONFIG_DISPLAY_ENCODER_TFP410=m
-CONFIG_DISPLAY_ENCODER_TPD12S015=m
-CONFIG_DISPLAY_CONNECTOR_DVI=m
-CONFIG_DISPLAY_CONNECTOR_HDMI=m
-CONFIG_DISPLAY_CONNECTOR_ANALOG_TV=m
-CONFIG_DISPLAY_PANEL_DPI=m
-CONFIG_DISPLAY_PANEL_DSI_CM=m
-CONFIG_DISPLAY_PANEL_SONY_ACX565AKM=m
-CONFIG_DISPLAY_PANEL_LGPHILIPS_LB035Q02=m
-CONFIG_DISPLAY_PANEL_SHARP_LS037V7DW01=m
-CONFIG_DISPLAY_PANEL_TPO_TD028TTEC1=m
-CONFIG_DISPLAY_PANEL_TPO_TD043MTEA1=m
-CONFIG_DISPLAY_PANEL_NEC_NL8048HL11=m
+CONFIG_FB_OMAP2_ENCODER_TFP410=m
+CONFIG_FB_OMAP2_ENCODER_TPD12S015=m
+CONFIG_FB_OMAP2_CONNECTOR_DVI=m
+CONFIG_FB_OMAP2_CONNECTOR_HDMI=m
+CONFIG_FB_OMAP2_CONNECTOR_ANALOG_TV=m
+CONFIG_FB_OMAP2_PANEL_DPI=m
+CONFIG_FB_OMAP2_PANEL_DSI_CM=m
+CONFIG_FB_OMAP2_PANEL_SONY_ACX565AKM=m
+CONFIG_FB_OMAP2_PANEL_LGPHILIPS_LB035Q02=m
+CONFIG_FB_OMAP2_PANEL_SHARP_LS037V7DW01=m
+CONFIG_FB_OMAP2_PANEL_TPO_TD028TTEC1=m
+CONFIG_FB_OMAP2_PANEL_TPO_TD043MTEA1=m
+CONFIG_FB_OMAP2_PANEL_NEC_NL8048HL11=m
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
 CONFIG_LCD_CLASS_DEVICE=y
 CONFIG_LCD_PLATFORM=y
diff --git a/arch/arm/crypto/aes-ce-glue.c b/arch/arm/crypto/aes-ce-glue.c
index b445a5d..89a3a3e 100644
--- a/arch/arm/crypto/aes-ce-glue.c
+++ b/arch/arm/crypto/aes-ce-glue.c
@@ -364,7 +364,7 @@ static struct crypto_alg aes_algs[] = { {
 	.cra_blkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
-		.ivsize		= AES_BLOCK_SIZE,
+		.ivsize		= 0,
 		.setkey		= ce_aes_setkey,
 		.encrypt	= ecb_encrypt,
 		.decrypt	= ecb_decrypt,
@@ -441,7 +441,7 @@ static struct crypto_alg aes_algs[] = { {
 	.cra_ablkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
-		.ivsize		= AES_BLOCK_SIZE,
+		.ivsize		= 0,
 		.setkey		= ablk_set_key,
 		.encrypt	= ablk_encrypt,
 		.decrypt	= ablk_decrypt,
diff --git a/arch/arm/include/asm/arch_gicv3.h b/arch/arm/include/asm/arch_gicv3.h
index 7da5503..e08d151 100644
--- a/arch/arm/include/asm/arch_gicv3.h
+++ b/arch/arm/include/asm/arch_gicv3.h
@@ -117,6 +117,7 @@ static inline u32 gic_read_iar(void)
 	u32 irqstat;
 
 	asm volatile("mrc " __stringify(ICC_IAR1) : "=r" (irqstat));
+	dsb(sy);
 	return irqstat;
 }
 
diff --git a/arch/arm/include/asm/xen/page-coherent.h b/arch/arm/include/asm/xen/page-coherent.h
index 0375c8c..9408a99 100644
--- a/arch/arm/include/asm/xen/page-coherent.h
+++ b/arch/arm/include/asm/xen/page-coherent.h
@@ -35,14 +35,21 @@ static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
 	     dma_addr_t dev_addr, unsigned long offset, size_t size,
 	     enum dma_data_direction dir, struct dma_attrs *attrs)
 {
-	bool local = XEN_PFN_DOWN(dev_addr) == page_to_xen_pfn(page);
+	unsigned long page_pfn = page_to_xen_pfn(page);
+	unsigned long dev_pfn = XEN_PFN_DOWN(dev_addr);
+	unsigned long compound_pages =
+		(1<<compound_order(page)) * XEN_PFN_PER_PAGE;
+	bool local = (page_pfn <= dev_pfn) &&
+		(dev_pfn - page_pfn < compound_pages);
+
 	/*
-	 * Dom0 is mapped 1:1, while the Linux page can be spanned accross
-	 * multiple Xen page, it's not possible to have a mix of local and
-	 * foreign Xen page. So if the first xen_pfn == mfn the page is local
-	 * otherwise it's a foreign page grant-mapped in dom0. If the page is
-	 * local we can safely call the native dma_ops function, otherwise we
-	 * call the xen specific function.
+	 * Dom0 is mapped 1:1, while the Linux page can span across
+	 * multiple Xen pages, it's not possible for it to contain a
+	 * mix of local and foreign Xen pages. So if the first xen_pfn
+	 * == mfn the page is local otherwise it's a foreign page
+	 * grant-mapped in dom0. If the page is local we can safely
+	 * call the native dma_ops function, otherwise we call the xen
+	 * specific function.
 	 */
 	if (local)
 		__generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs);
diff --git a/arch/arm/kvm/mmio.c b/arch/arm/kvm/mmio.c
index 7f33b20..0f6600f 100644
--- a/arch/arm/kvm/mmio.c
+++ b/arch/arm/kvm/mmio.c
@@ -206,7 +206,8 @@ int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
 	run->mmio.is_write	= is_write;
 	run->mmio.phys_addr	= fault_ipa;
 	run->mmio.len		= len;
-	memcpy(run->mmio.data, data_buf, len);
+	if (is_write)
+		memcpy(run->mmio.data, data_buf, len);
 
 	if (!ret) {
 		/* We handled the access successfully in the kernel. */
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 8098272..bab814d 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -18,6 +18,7 @@
 
 #include <asm/setup.h>
 #include <asm/mach/arch.h>
+#include <asm/system_info.h>
 
 #include "common.h"
 
@@ -77,12 +78,31 @@ static const char *const n900_boards_compat[] __initconst = {
 	NULL,
 };
 
+/* Set system_rev from atags */
+static void __init rx51_set_system_rev(const struct tag *tags)
+{
+	const struct tag *tag;
+
+	if (tags->hdr.tag != ATAG_CORE)
+		return;
+
+	for_each_tag(tag, tags) {
+		if (tag->hdr.tag == ATAG_REVISION) {
+			system_rev = tag->u.revision.rev;
+			break;
+		}
+	}
+}
+
 /* Legacy userspace on Nokia N900 needs ATAGS exported in /proc/atags,
  * save them while the data is still not overwritten
  */
 static void __init rx51_reserve(void)
 {
-	save_atags((const struct tag *)(PAGE_OFFSET + 0x100));
+	const struct tag *tags = (const struct tag *)(PAGE_OFFSET + 0x100);
+
+	save_atags(tags);
+	rx51_set_system_rev(tags);
 	omap_reserve();
 }
 
diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c
index 7b76ce0..8633c70 100644
--- a/arch/arm/mach-omap2/gpmc-onenand.c
+++ b/arch/arm/mach-omap2/gpmc-onenand.c
@@ -101,10 +101,8 @@ static void omap2_onenand_set_async_mode(void __iomem *onenand_base)
 
 static void set_onenand_cfg(void __iomem *onenand_base)
 {
-	u32 reg;
+	u32 reg = ONENAND_SYS_CFG1_RDY | ONENAND_SYS_CFG1_INT;
 
-	reg = readw(onenand_base + ONENAND_REG_SYS_CFG1);
-	reg &= ~((0x7 << ONENAND_SYS_CFG1_BRL_SHIFT) | (0x7 << 9));
 	reg |=	(latency << ONENAND_SYS_CFG1_BRL_SHIFT) |
 		ONENAND_SYS_CFG1_BL_16;
 	if (onenand_flags & ONENAND_FLAG_SYNCREAD)
@@ -123,6 +121,7 @@ static void set_onenand_cfg(void __iomem *onenand_base)
 		reg |= ONENAND_SYS_CFG1_VHF;
 	else
 		reg &= ~ONENAND_SYS_CFG1_VHF;
+
 	writew(reg, onenand_base + ONENAND_REG_SYS_CFG1);
 }
 
@@ -289,6 +288,7 @@ static int omap2_onenand_setup_async(void __iomem *onenand_base)
 		}
 	}
 
+	onenand_async.sync_write = true;
 	omap2_onenand_calc_async_timings(&t);
 
 	ret = gpmc_cs_program_settings(gpmc_onenand_data->cs, &onenand_async);
diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index 0437537..f7ff3b9 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -191,12 +191,22 @@ static int _omap_device_notifier_call(struct notifier_block *nb,
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct omap_device *od;
+	int err;
 
 	switch (event) {
 	case BUS_NOTIFY_DEL_DEVICE:
 		if (pdev->archdata.od)
 			omap_device_delete(pdev->archdata.od);
 		break;
+	case BUS_NOTIFY_UNBOUND_DRIVER:
+		od = to_omap_device(pdev);
+		if (od && (od->_state == OMAP_DEVICE_STATE_ENABLED)) {
+			dev_info(dev, "enabled after unload, idling\n");
+			err = omap_device_idle(pdev);
+			if (err)
+				dev_err(dev, "failed to idle\n");
+		}
+		break;
 	case BUS_NOTIFY_ADD_DEVICE:
 		if (pdev->dev.of_node)
 			omap_device_build_from_dt(pdev);
@@ -602,8 +612,10 @@ static int _od_runtime_resume(struct device *dev)
 	int ret;
 
 	ret = omap_device_enable(pdev);
-	if (ret)
+	if (ret) {
+		dev_err(dev, "use pm_runtime_put_sync_suspend() in driver?\n");
 		return ret;
+	}
 
 	return pm_generic_runtime_resume(dev);
 }
diff --git a/arch/arm/mach-shmobile/common.h b/arch/arm/mach-shmobile/common.h
index 9cb1121..b3a4ed5 100644
--- a/arch/arm/mach-shmobile/common.h
+++ b/arch/arm/mach-shmobile/common.h
@@ -4,7 +4,6 @@
 extern void shmobile_init_delay(void);
 extern void shmobile_boot_vector(void);
 extern unsigned long shmobile_boot_fn;
-extern unsigned long shmobile_boot_arg;
 extern unsigned long shmobile_boot_size;
 extern void shmobile_smp_boot(void);
 extern void shmobile_smp_sleep(void);
diff --git a/arch/arm/mach-shmobile/headsmp-scu.S b/arch/arm/mach-shmobile/headsmp-scu.S
index fa5248c..5e503d9 100644
--- a/arch/arm/mach-shmobile/headsmp-scu.S
+++ b/arch/arm/mach-shmobile/headsmp-scu.S
@@ -38,9 +38,3 @@ ENTRY(shmobile_boot_scu)
 
 	b	secondary_startup
 ENDPROC(shmobile_boot_scu)
-
-	.text
-	.align	2
-	.globl	shmobile_scu_base
-shmobile_scu_base:
-	.space	4
diff --git a/arch/arm/mach-shmobile/headsmp.S b/arch/arm/mach-shmobile/headsmp.S
index 330c1fc..32e0bf6 100644
--- a/arch/arm/mach-shmobile/headsmp.S
+++ b/arch/arm/mach-shmobile/headsmp.S
@@ -24,7 +24,6 @@
 	.arm
 	.align  12
 ENTRY(shmobile_boot_vector)
-	ldr     r0, 2f
 	ldr     r1, 1f
 	bx	r1
 
@@ -34,9 +33,6 @@ ENDPROC(shmobile_boot_vector)
 	.globl	shmobile_boot_fn
 shmobile_boot_fn:
 1:	.space	4
-	.globl	shmobile_boot_arg
-shmobile_boot_arg:
-2:	.space	4
 	.globl	shmobile_boot_size
 shmobile_boot_size:
 	.long	. - shmobile_boot_vector
@@ -46,13 +42,15 @@ shmobile_boot_size:
  */
 
 ENTRY(shmobile_smp_boot)
-						@ r0 = MPIDR_HWID_BITMASK
 	mrc	p15, 0, r1, c0, c0, 5		@ r1 = MPIDR
-	and	r0, r1, r0			@ r0 = cpu_logical_map() value
+	and	r0, r1, #0xffffff		@ MPIDR_HWID_BITMASK
+						@ r0 = cpu_logical_map() value
 	mov	r1, #0				@ r1 = CPU index
-	adr	r5, 1f				@ array of per-cpu mpidr values
-	adr	r6, 2f				@ array of per-cpu functions
-	adr	r7, 3f				@ array of per-cpu arguments
+	adr	r2, 1f
+	ldmia	r2, {r5, r6, r7}
+	add	r5, r5, r2			@ array of per-cpu mpidr values
+	add	r6, r6, r2			@ array of per-cpu functions
+	add	r7, r7, r2			@ array of per-cpu arguments
 
 shmobile_smp_boot_find_mpidr:
 	ldr	r8, [r5, r1, lsl #2]
@@ -80,12 +78,18 @@ ENTRY(shmobile_smp_sleep)
 	b	shmobile_smp_boot
 ENDPROC(shmobile_smp_sleep)
 
+	.align	2
+1:	.long	shmobile_smp_mpidr - .
+	.long	shmobile_smp_fn - 1b
+	.long	shmobile_smp_arg - 1b
+
+	.bss
 	.globl	shmobile_smp_mpidr
 shmobile_smp_mpidr:
-1:	.space	NR_CPUS * 4
+	.space	NR_CPUS * 4
 	.globl	shmobile_smp_fn
 shmobile_smp_fn:
-2:	.space	NR_CPUS * 4
+	.space	NR_CPUS * 4
 	.globl	shmobile_smp_arg
 shmobile_smp_arg:
-3:	.space	NR_CPUS * 4
+	.space	NR_CPUS * 4
diff --git a/arch/arm/mach-shmobile/platsmp-apmu.c b/arch/arm/mach-shmobile/platsmp-apmu.c
index 911884f..aba75c8 100644
--- a/arch/arm/mach-shmobile/platsmp-apmu.c
+++ b/arch/arm/mach-shmobile/platsmp-apmu.c
@@ -123,7 +123,6 @@ void __init shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus,
 {
 	/* install boot code shared by all CPUs */
 	shmobile_boot_fn = virt_to_phys(shmobile_smp_boot);
-	shmobile_boot_arg = MPIDR_HWID_BITMASK;
 
 	/* perform per-cpu setup */
 	apmu_parse_cfg(apmu_init_cpu, apmu_config, num);
diff --git a/arch/arm/mach-shmobile/platsmp-scu.c b/arch/arm/mach-shmobile/platsmp-scu.c
index 6466311..081a097 100644
--- a/arch/arm/mach-shmobile/platsmp-scu.c
+++ b/arch/arm/mach-shmobile/platsmp-scu.c
@@ -17,6 +17,9 @@
 #include <asm/smp_scu.h>
 #include "common.h"
 
+
+void __iomem *shmobile_scu_base;
+
 static int shmobile_smp_scu_notifier_call(struct notifier_block *nfb,
 					  unsigned long action, void *hcpu)
 {
@@ -41,7 +44,6 @@ void __init shmobile_smp_scu_prepare_cpus(unsigned int max_cpus)
 {
 	/* install boot code shared by all CPUs */
 	shmobile_boot_fn = virt_to_phys(shmobile_smp_boot);
-	shmobile_boot_arg = MPIDR_HWID_BITMASK;
 
 	/* enable SCU and cache coherency on booting CPU */
 	scu_enable(shmobile_scu_base);
diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c
index b854fe2..0b024a9 100644
--- a/arch/arm/mach-shmobile/smp-r8a7779.c
+++ b/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -92,8 +92,6 @@ static void __init r8a7779_smp_prepare_cpus(unsigned int max_cpus)
 {
 	/* Map the reset vector (in headsmp-scu.S, headsmp.S) */
 	__raw_writel(__pa(shmobile_boot_vector), AVECR);
-	shmobile_boot_fn = virt_to_phys(shmobile_boot_scu);
-	shmobile_boot_arg = (unsigned long)shmobile_scu_base;
 
 	/* setup r8a7779 specific SCU bits */
 	shmobile_scu_base = IOMEM(R8A7779_SCU_BASE);
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 4b4058d..66353ca 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -173,7 +173,7 @@ unsigned long arch_mmap_rnd(void)
 {
 	unsigned long rnd;
 
-	rnd = (unsigned long)get_random_int() & ((1 << mmap_rnd_bits) - 1);
+	rnd = get_random_long() & ((1UL << mmap_rnd_bits) - 1);
 
 	return rnd << PAGE_SHIFT;
 }
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 307237c..b5e3f6d 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -88,7 +88,7 @@ Image: vmlinux
 Image.%: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 
-zinstall install: vmlinux
+zinstall install:
 	$(Q)$(MAKE) $(build)=$(boot) $@
 
 %.dtb: scripts
diff --git a/arch/arm64/boot/Makefile b/arch/arm64/boot/Makefile
index abcbba2..305c552 100644
--- a/arch/arm64/boot/Makefile
+++ b/arch/arm64/boot/Makefile
@@ -34,10 +34,10 @@ $(obj)/Image.lzma: $(obj)/Image FORCE
 $(obj)/Image.lzo: $(obj)/Image FORCE
 	$(call if_changed,lzo)
 
-install: $(obj)/Image
+install:
 	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
 	$(obj)/Image System.map "$(INSTALL_PATH)"
 
-zinstall: $(obj)/Image.gz
+zinstall:
 	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
 	$(obj)/Image.gz System.map "$(INSTALL_PATH)"
diff --git a/arch/arm64/boot/install.sh b/arch/arm64/boot/install.sh
index 12ed78a..d91e1f0 100644
--- a/arch/arm64/boot/install.sh
+++ b/arch/arm64/boot/install.sh
@@ -20,6 +20,20 @@
 #   $4 - default install path (blank if root directory)
 #
 
+verify () {
+	if [ ! -f "$1" ]; then
+		echo ""                                                   1>&2
+		echo " *** Missing file: $1"                              1>&2
+		echo ' *** You need to run "make" before "make install".' 1>&2
+		echo ""                                                   1>&2
+		exit 1
+	fi
+}
+
+# Make sure the files actually exist
+verify "$2"
+verify "$3"
+
 # User may have a custom install script
 if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
 if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
diff --git a/arch/arm64/crypto/aes-glue.c b/arch/arm64/crypto/aes-glue.c
index 05d9e16..7a3d22a 100644
--- a/arch/arm64/crypto/aes-glue.c
+++ b/arch/arm64/crypto/aes-glue.c
@@ -294,7 +294,7 @@ static struct crypto_alg aes_algs[] = { {
 	.cra_blkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
-		.ivsize		= AES_BLOCK_SIZE,
+		.ivsize		= 0,
 		.setkey		= aes_setkey,
 		.encrypt	= ecb_encrypt,
 		.decrypt	= ecb_decrypt,
@@ -371,7 +371,7 @@ static struct crypto_alg aes_algs[] = { {
 	.cra_ablkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
-		.ivsize		= AES_BLOCK_SIZE,
+		.ivsize		= 0,
 		.setkey		= ablk_set_key,
 		.encrypt	= ablk_encrypt,
 		.decrypt	= ablk_decrypt,
diff --git a/arch/arm64/include/asm/arch_gicv3.h b/arch/arm64/include/asm/arch_gicv3.h
index 2731d3b..8ec88e5 100644
--- a/arch/arm64/include/asm/arch_gicv3.h
+++ b/arch/arm64/include/asm/arch_gicv3.h
@@ -103,6 +103,7 @@ static inline u64 gic_read_iar_common(void)
 	u64 irqstat;
 
 	asm volatile("mrs_s %0, " __stringify(ICC_IAR1_EL1) : "=r" (irqstat));
+	dsb(sy);
 	return irqstat;
 }
 
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 738a95f..d201d4b 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -107,8 +107,6 @@
 #define TCR_EL2_MASK	(TCR_EL2_TG0 | TCR_EL2_SH0 | \
 			 TCR_EL2_ORGN0 | TCR_EL2_IRGN0 | TCR_EL2_T0SZ)
 
-#define TCR_EL2_FLAGS	(TCR_EL2_RES1 | TCR_EL2_PS_40B)
-
 /* VTCR_EL2 Registers bits */
 #define VTCR_EL2_RES1		(1 << 31)
 #define VTCR_EL2_PS_MASK	(7 << 16)
@@ -182,6 +180,7 @@
 #define CPTR_EL2_TCPAC	(1 << 31)
 #define CPTR_EL2_TTA	(1 << 20)
 #define CPTR_EL2_TFP	(1 << CPTR_EL2_TFP_SHIFT)
+#define CPTR_EL2_DEFAULT	0x000033ff
 
 /* Hyp Debug Configuration Register bits */
 #define MDCR_EL2_TDRA		(1 << 11)
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index 3066328..779a587 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -127,10 +127,14 @@ static inline unsigned long *vcpu_spsr(const struct kvm_vcpu *vcpu)
 
 static inline bool vcpu_mode_priv(const struct kvm_vcpu *vcpu)
 {
-	u32 mode = *vcpu_cpsr(vcpu) & PSR_MODE_MASK;
+	u32 mode;
 
-	if (vcpu_mode_is_32bit(vcpu))
+	if (vcpu_mode_is_32bit(vcpu)) {
+		mode = *vcpu_cpsr(vcpu) & COMPAT_PSR_MODE_MASK;
 		return mode > COMPAT_PSR_MODE_USR;
+	}
+
+	mode = *vcpu_cpsr(vcpu) & PSR_MODE_MASK;
 
 	return mode != PSR_MODE_EL0t;
 }
diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
index 8aee3ae..c536c9e 100644
--- a/arch/arm64/kernel/debug-monitors.c
+++ b/arch/arm64/kernel/debug-monitors.c
@@ -226,11 +226,28 @@ static int call_step_hook(struct pt_regs *regs, unsigned int esr)
 	return retval;
 }
 
+static void send_user_sigtrap(int si_code)
+{
+	struct pt_regs *regs = current_pt_regs();
+	siginfo_t info = {
+		.si_signo	= SIGTRAP,
+		.si_errno	= 0,
+		.si_code	= si_code,
+		.si_addr	= (void __user *)instruction_pointer(regs),
+	};
+
+	if (WARN_ON(!user_mode(regs)))
+		return;
+
+	if (interrupts_enabled(regs))
+		local_irq_enable();
+
+	force_sig_info(SIGTRAP, &info, current);
+}
+
 static int single_step_handler(unsigned long addr, unsigned int esr,
 			       struct pt_regs *regs)
 {
-	siginfo_t info;
-
 	/*
 	 * If we are stepping a pending breakpoint, call the hw_breakpoint
 	 * handler first.
@@ -239,11 +256,7 @@ static int single_step_handler(unsigned long addr, unsigned int esr,
 		return 0;
 
 	if (user_mode(regs)) {
-		info.si_signo = SIGTRAP;
-		info.si_errno = 0;
-		info.si_code  = TRAP_HWBKPT;
-		info.si_addr  = (void __user *)instruction_pointer(regs);
-		force_sig_info(SIGTRAP, &info, current);
+		send_user_sigtrap(TRAP_HWBKPT);
 
 		/*
 		 * ptrace will disable single step unless explicitly
@@ -307,17 +320,8 @@ static int call_break_hook(struct pt_regs *regs, unsigned int esr)
 static int brk_handler(unsigned long addr, unsigned int esr,
 		       struct pt_regs *regs)
 {
-	siginfo_t info;
-
 	if (user_mode(regs)) {
-		info = (siginfo_t) {
-			.si_signo = SIGTRAP,
-			.si_errno = 0,
-			.si_code  = TRAP_BRKPT,
-			.si_addr  = (void __user *)instruction_pointer(regs),
-		};
-
-		force_sig_info(SIGTRAP, &info, current);
+		send_user_sigtrap(TRAP_BRKPT);
 	} else if (call_break_hook(regs, esr) != DBG_HOOK_HANDLED) {
 		pr_warning("Unexpected kernel BRK exception at EL1\n");
 		return -EFAULT;
@@ -328,7 +332,6 @@ static int brk_handler(unsigned long addr, unsigned int esr,
 
 int aarch32_break_handler(struct pt_regs *regs)
 {
-	siginfo_t info;
 	u32 arm_instr;
 	u16 thumb_instr;
 	bool bp = false;
@@ -359,14 +362,7 @@ int aarch32_break_handler(struct pt_regs *regs)
 	if (!bp)
 		return -EFAULT;
 
-	info = (siginfo_t) {
-		.si_signo = SIGTRAP,
-		.si_errno = 0,
-		.si_code  = TRAP_BRKPT,
-		.si_addr  = pc,
-	};
-
-	force_sig_info(SIGTRAP, &info, current);
+	send_user_sigtrap(TRAP_BRKPT);
 	return 0;
 }
 
diff --git a/arch/arm64/kernel/image.h b/arch/arm64/kernel/image.h
index 999633b..352f7ab 100644
--- a/arch/arm64/kernel/image.h
+++ b/arch/arm64/kernel/image.h
@@ -89,6 +89,7 @@ __efistub_memcpy		= KALLSYMS_HIDE(__pi_memcpy);
 __efistub_memmove		= KALLSYMS_HIDE(__pi_memmove);
 __efistub_memset		= KALLSYMS_HIDE(__pi_memset);
 __efistub_strlen		= KALLSYMS_HIDE(__pi_strlen);
+__efistub_strnlen		= KALLSYMS_HIDE(__pi_strnlen);
 __efistub_strcmp		= KALLSYMS_HIDE(__pi_strcmp);
 __efistub_strncmp		= KALLSYMS_HIDE(__pi_strncmp);
 __efistub___flush_dcache_area	= KALLSYMS_HIDE(__pi___flush_dcache_area);
diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index 4fad978..d9751a4 100644
--- a/arch/arm64/kernel/stacktrace.c
+++ b/arch/arm64/kernel/stacktrace.c
@@ -44,14 +44,13 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame)
 	unsigned long irq_stack_ptr;
 
 	/*
-	 * Use raw_smp_processor_id() to avoid false-positives from
-	 * CONFIG_DEBUG_PREEMPT. get_wchan() calls unwind_frame() on sleeping
-	 * task stacks, we can be pre-empted in this case, so
-	 * {raw_,}smp_processor_id() may give us the wrong value. Sleeping
-	 * tasks can't ever be on an interrupt stack, so regardless of cpu,
-	 * the checks will always fail.
+	 * Switching between stacks is valid when tracing current and in
+	 * non-preemptible context.
 	 */
-	irq_stack_ptr = IRQ_STACK_PTR(raw_smp_processor_id());
+	if (tsk == current && !preemptible())
+		irq_stack_ptr = IRQ_STACK_PTR(smp_processor_id());
+	else
+		irq_stack_ptr = 0;
 
 	low  = frame->sp;
 	/* irq stacks are not THREAD_SIZE aligned */
@@ -64,8 +63,8 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame)
 		return -EINVAL;
 
 	frame->sp = fp + 0x10;
-	frame->fp = *(unsigned long *)(fp);
-	frame->pc = *(unsigned long *)(fp + 8);
+	frame->fp = READ_ONCE_NOCHECK(*(unsigned long *)(fp));
+	frame->pc = READ_ONCE_NOCHECK(*(unsigned long *)(fp + 8));
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 	if (tsk && tsk->ret_stack &&
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index cbedd72..c539208 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -146,9 +146,18 @@ static void dump_instr(const char *lvl, struct pt_regs *regs)
 static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
 {
 	struct stackframe frame;
-	unsigned long irq_stack_ptr = IRQ_STACK_PTR(smp_processor_id());
+	unsigned long irq_stack_ptr;
 	int skip;
 
+	/*
+	 * Switching between stacks is valid when tracing current and in
+	 * non-preemptible context.
+	 */
+	if (tsk == current && !preemptible())
+		irq_stack_ptr = IRQ_STACK_PTR(smp_processor_id());
+	else
+		irq_stack_ptr = 0;
+
 	pr_debug("%s(regs = %p tsk = %p)\n", __func__, regs, tsk);
 
 	if (!tsk)
diff --git a/arch/arm64/kvm/hyp-init.S b/arch/arm64/kvm/hyp-init.S
index 3e568dc..d073b5a 100644
--- a/arch/arm64/kvm/hyp-init.S
+++ b/arch/arm64/kvm/hyp-init.S
@@ -64,7 +64,7 @@ __do_hyp_init:
 	mrs	x4, tcr_el1
 	ldr	x5, =TCR_EL2_MASK
 	and	x4, x4, x5
-	ldr	x5, =TCR_EL2_FLAGS
+	mov	x5, #TCR_EL2_RES1
 	orr	x4, x4, x5
 
 #ifndef CONFIG_ARM64_VA_BITS_48
@@ -85,15 +85,17 @@ __do_hyp_init:
 	ldr_l	x5, idmap_t0sz
 	bfi	x4, x5, TCR_T0SZ_OFFSET, TCR_TxSZ_WIDTH
 #endif
-	msr	tcr_el2, x4
-
-	ldr	x4, =VTCR_EL2_FLAGS
 	/*
 	 * Read the PARange bits from ID_AA64MMFR0_EL1 and set the PS bits in
-	 * VTCR_EL2.
+	 * TCR_EL2 and VTCR_EL2.
 	 */
 	mrs	x5, ID_AA64MMFR0_EL1
 	bfi	x4, x5, #16, #3
+
+	msr	tcr_el2, x4
+
+	ldr	x4, =VTCR_EL2_FLAGS
+	bfi	x4, x5, #16, #3
 	/*
 	 * Read the VMIDBits bits from ID_AA64MMFR1_EL1 and set the VS bit in
 	 * VTCR_EL2.
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index ca8f5a5..f0e7bdf 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -36,7 +36,11 @@ static void __hyp_text __activate_traps(struct kvm_vcpu *vcpu)
 	write_sysreg(val, hcr_el2);
 	/* Trap on AArch32 cp15 c15 accesses (EL1 or EL0) */
 	write_sysreg(1 << 15, hstr_el2);
-	write_sysreg(CPTR_EL2_TTA | CPTR_EL2_TFP, cptr_el2);
+
+	val = CPTR_EL2_DEFAULT;
+	val |= CPTR_EL2_TTA | CPTR_EL2_TFP;
+	write_sysreg(val, cptr_el2);
+
 	write_sysreg(vcpu->arch.mdcr_el2, mdcr_el2);
 }
 
@@ -45,7 +49,7 @@ static void __hyp_text __deactivate_traps(struct kvm_vcpu *vcpu)
 	write_sysreg(HCR_RW, hcr_el2);
 	write_sysreg(0, hstr_el2);
 	write_sysreg(read_sysreg(mdcr_el2) & MDCR_EL2_HPMN_MASK, mdcr_el2);
-	write_sysreg(0, cptr_el2);
+	write_sysreg(CPTR_EL2_DEFAULT, cptr_el2);
 }
 
 static void __hyp_text __activate_vm(struct kvm_vcpu *vcpu)
diff --git a/arch/arm64/kvm/hyp/vgic-v3-sr.c b/arch/arm64/kvm/hyp/vgic-v3-sr.c
index 9142e08..5dd2a26 100644
--- a/arch/arm64/kvm/hyp/vgic-v3-sr.c
+++ b/arch/arm64/kvm/hyp/vgic-v3-sr.c
@@ -149,16 +149,6 @@ void __hyp_text __vgic_v3_restore_state(struct kvm_vcpu *vcpu)
 
 	switch (nr_pri_bits) {
 	case 7:
-		 write_gicreg(cpu_if->vgic_ap1r[3], ICH_AP1R3_EL2);
-		 write_gicreg(cpu_if->vgic_ap1r[2], ICH_AP1R2_EL2);
-	case 6:
-		 write_gicreg(cpu_if->vgic_ap1r[1], ICH_AP1R1_EL2);
-	default:
-		 write_gicreg(cpu_if->vgic_ap1r[0], ICH_AP1R0_EL2);
-	}	 	                           
-		 	                           
-	switch (nr_pri_bits) {
-	case 7:
 		 write_gicreg(cpu_if->vgic_ap0r[3], ICH_AP0R3_EL2);
 		 write_gicreg(cpu_if->vgic_ap0r[2], ICH_AP0R2_EL2);
 	case 6:
@@ -167,6 +157,16 @@ void __hyp_text __vgic_v3_restore_state(struct kvm_vcpu *vcpu)
 		 write_gicreg(cpu_if->vgic_ap0r[0], ICH_AP0R0_EL2);
 	}
 
+	switch (nr_pri_bits) {
+	case 7:
+		 write_gicreg(cpu_if->vgic_ap1r[3], ICH_AP1R3_EL2);
+		 write_gicreg(cpu_if->vgic_ap1r[2], ICH_AP1R2_EL2);
+	case 6:
+		 write_gicreg(cpu_if->vgic_ap1r[1], ICH_AP1R1_EL2);
+	default:
+		 write_gicreg(cpu_if->vgic_ap1r[0], ICH_AP1R0_EL2);
+	}
+
 	switch (max_lr_idx) {
 	case 15:
 		write_gicreg(cpu_if->vgic_lr[VGIC_V3_LR_INDEX(15)], ICH_LR15_EL2);
diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c
index 648112e..4d1ac81 100644
--- a/arch/arm64/kvm/inject_fault.c
+++ b/arch/arm64/kvm/inject_fault.c
@@ -27,7 +27,11 @@
 
 #define PSTATE_FAULT_BITS_64 	(PSR_MODE_EL1h | PSR_A_BIT | PSR_F_BIT | \
 				 PSR_I_BIT | PSR_D_BIT)
-#define EL1_EXCEPT_SYNC_OFFSET	0x200
+
+#define CURRENT_EL_SP_EL0_VECTOR	0x0
+#define CURRENT_EL_SP_ELx_VECTOR	0x200
+#define LOWER_EL_AArch64_VECTOR		0x400
+#define LOWER_EL_AArch32_VECTOR		0x600
 
 static void prepare_fault32(struct kvm_vcpu *vcpu, u32 mode, u32 vect_offset)
 {
@@ -97,6 +101,34 @@ static void inject_abt32(struct kvm_vcpu *vcpu, bool is_pabt,
 		*fsr = 0x14;
 }
 
+enum exception_type {
+	except_type_sync	= 0,
+	except_type_irq		= 0x80,
+	except_type_fiq		= 0x100,
+	except_type_serror	= 0x180,
+};
+
+static u64 get_except_vector(struct kvm_vcpu *vcpu, enum exception_type type)
+{
+	u64 exc_offset;
+
+	switch (*vcpu_cpsr(vcpu) & (PSR_MODE_MASK | PSR_MODE32_BIT)) {
+	case PSR_MODE_EL1t:
+		exc_offset = CURRENT_EL_SP_EL0_VECTOR;
+		break;
+	case PSR_MODE_EL1h:
+		exc_offset = CURRENT_EL_SP_ELx_VECTOR;
+		break;
+	case PSR_MODE_EL0t:
+		exc_offset = LOWER_EL_AArch64_VECTOR;
+		break;
+	default:
+		exc_offset = LOWER_EL_AArch32_VECTOR;
+	}
+
+	return vcpu_sys_reg(vcpu, VBAR_EL1) + exc_offset + type;
+}
+
 static void inject_abt64(struct kvm_vcpu *vcpu, bool is_iabt, unsigned long addr)
 {
 	unsigned long cpsr = *vcpu_cpsr(vcpu);
@@ -108,8 +140,8 @@ static void inject_abt64(struct kvm_vcpu *vcpu, bool is_iabt, unsigned long addr
 	*vcpu_spsr(vcpu) = cpsr;
 	*vcpu_elr_el1(vcpu) = *vcpu_pc(vcpu);
 
+	*vcpu_pc(vcpu) = get_except_vector(vcpu, except_type_sync);
 	*vcpu_cpsr(vcpu) = PSTATE_FAULT_BITS_64;
-	*vcpu_pc(vcpu) = vcpu_sys_reg(vcpu, VBAR_EL1) + EL1_EXCEPT_SYNC_OFFSET;
 
 	vcpu_sys_reg(vcpu, FAR_EL1) = addr;
 
@@ -143,8 +175,8 @@ static void inject_undef64(struct kvm_vcpu *vcpu)
 	*vcpu_spsr(vcpu) = cpsr;
 	*vcpu_elr_el1(vcpu) = *vcpu_pc(vcpu);
 
+	*vcpu_pc(vcpu) = get_except_vector(vcpu, except_type_sync);
 	*vcpu_cpsr(vcpu) = PSTATE_FAULT_BITS_64;
-	*vcpu_pc(vcpu) = vcpu_sys_reg(vcpu, VBAR_EL1) + EL1_EXCEPT_SYNC_OFFSET;
 
 	/*
 	 * Build an unknown exception, depending on the instruction
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index eec3598..2e90371 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1007,10 +1007,9 @@ static int emulate_cp(struct kvm_vcpu *vcpu,
 		if (likely(r->access(vcpu, params, r))) {
 			/* Skip instruction, since it was emulated */
 			kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
+			/* Handled */
+			return 0;
 		}
-
-		/* Handled */
-		return 0;
 	}
 
 	/* Not handled */
@@ -1043,7 +1042,7 @@ static void unhandled_cp_access(struct kvm_vcpu *vcpu,
 }
 
 /**
- * kvm_handle_cp_64 -- handles a mrrc/mcrr trap on a guest CP15 access
+ * kvm_handle_cp_64 -- handles a mrrc/mcrr trap on a guest CP14/CP15 access
  * @vcpu: The VCPU pointer
  * @run:  The kvm_run struct
  */
@@ -1095,7 +1094,7 @@ out:
 }
 
 /**
- * kvm_handle_cp15_32 -- handles a mrc/mcr trap on a guest CP15 access
+ * kvm_handle_cp_32 -- handles a mrc/mcr trap on a guest CP14/CP15 access
  * @vcpu: The VCPU pointer
  * @run:  The kvm_run struct
  */
diff --git a/arch/arm64/lib/strnlen.S b/arch/arm64/lib/strnlen.S
index 2ca6657..eae38da 100644
--- a/arch/arm64/lib/strnlen.S
+++ b/arch/arm64/lib/strnlen.S
@@ -168,4 +168,4 @@ CPU_LE( lsr	tmp2, tmp2, tmp4 )	/* Shift (tmp1 & 63).  */
 .Lhit_limit:
 	mov	len, limit
 	ret
-ENDPROC(strnlen)
+ENDPIPROC(strnlen)
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 331c4ca..a6e757c 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -933,6 +933,10 @@ static int __init __iommu_dma_init(void)
 		ret = register_iommu_dma_ops_notifier(&platform_bus_type);
 	if (!ret)
 		ret = register_iommu_dma_ops_notifier(&amba_bustype);
+
+	/* handle devices queued before this arch_initcall */
+	if (!ret)
+		__iommu_attach_notifier(NULL, BUS_NOTIFY_ADD_DEVICE, NULL);
 	return ret;
 }
 arch_initcall(__iommu_dma_init);
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 92ddac1..abe2a95 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -371,6 +371,13 @@ static int __kprobes do_translation_fault(unsigned long addr,
 	return 0;
 }
 
+static int do_alignment_fault(unsigned long addr, unsigned int esr,
+			      struct pt_regs *regs)
+{
+	do_bad_area(addr, esr, regs);
+	return 0;
+}
+
 /*
  * This abort handler always returns "fault".
  */
@@ -418,7 +425,7 @@ static struct fault_info {
 	{ do_bad,		SIGBUS,  0,		"synchronous parity error (translation table walk)" },
 	{ do_bad,		SIGBUS,  0,		"synchronous parity error (translation table walk)" },
 	{ do_bad,		SIGBUS,  0,		"unknown 32"			},
-	{ do_bad,		SIGBUS,  BUS_ADRALN,	"alignment fault"		},
+	{ do_alignment_fault,	SIGBUS,  BUS_ADRALN,	"alignment fault"		},
 	{ do_bad,		SIGBUS,  0,		"unknown 34"			},
 	{ do_bad,		SIGBUS,  0,		"unknown 35"			},
 	{ do_bad,		SIGBUS,  0,		"unknown 36"			},
diff --git a/arch/arm64/mm/mmap.c b/arch/arm64/mm/mmap.c
index 4c893b5..232f787 100644
--- a/arch/arm64/mm/mmap.c
+++ b/arch/arm64/mm/mmap.c
@@ -53,10 +53,10 @@ unsigned long arch_mmap_rnd(void)
 
 #ifdef CONFIG_COMPAT
 	if (test_thread_flag(TIF_32BIT))
-		rnd = (unsigned long)get_random_int() & ((1 << mmap_rnd_compat_bits) - 1);
+		rnd = get_random_long() & ((1UL << mmap_rnd_compat_bits) - 1);
 	else
 #endif
-		rnd = (unsigned long)get_random_int() & ((1 << mmap_rnd_bits) - 1);
+		rnd = get_random_long() & ((1UL << mmap_rnd_bits) - 1);
 	return rnd << PAGE_SHIFT;
 }
 
diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig
index fc96e81..d1fc479 100644
--- a/arch/m68k/configs/amiga_defconfig
+++ b/arch/m68k/configs/amiga_defconfig
@@ -108,6 +108,8 @@ CONFIG_NFT_NAT=m
 CONFIG_NFT_QUEUE=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -266,6 +268,12 @@ CONFIG_L2TP=m
 CONFIG_BRIDGE=m
 CONFIG_ATALK=m
 CONFIG_6LOWPAN=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=m
+CONFIG_6LOWPAN_GHC_UDP=m
+CONFIG_6LOWPAN_GHC_ICMPV6=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_BATMAN_ADV=m
 CONFIG_BATMAN_ADV_DAT=y
@@ -366,6 +374,7 @@ CONFIG_ARIADNE=y
 # CONFIG_NET_VENDOR_INTEL is not set
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
 CONFIG_HYDRA=y
 CONFIG_APNE=y
 CONFIG_ZORRO8390=y
diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig
index 05c904f..9bfe8be 100644
--- a/arch/m68k/configs/apollo_defconfig
+++ b/arch/m68k/configs/apollo_defconfig
@@ -106,6 +106,8 @@ CONFIG_NFT_NAT=m
 CONFIG_NFT_QUEUE=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -264,6 +266,12 @@ CONFIG_L2TP=m
 CONFIG_BRIDGE=m
 CONFIG_ATALK=m
 CONFIG_6LOWPAN=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=m
+CONFIG_6LOWPAN_GHC_UDP=m
+CONFIG_6LOWPAN_GHC_ICMPV6=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_BATMAN_ADV=m
 CONFIG_BATMAN_ADV_DAT=y
@@ -344,6 +352,7 @@ CONFIG_VETH=m
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
 # CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
 # CONFIG_NET_VENDOR_QUALCOMM is not set
 # CONFIG_NET_VENDOR_RENESAS is not set
 # CONFIG_NET_VENDOR_ROCKER is not set
diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig
index d572b73..ebdcfae 100644
--- a/arch/m68k/configs/atari_defconfig
+++ b/arch/m68k/configs/atari_defconfig
@@ -106,6 +106,8 @@ CONFIG_NFT_NAT=m
 CONFIG_NFT_QUEUE=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -264,6 +266,12 @@ CONFIG_L2TP=m
 CONFIG_BRIDGE=m
 CONFIG_ATALK=m
 CONFIG_6LOWPAN=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=m
+CONFIG_6LOWPAN_GHC_UDP=m
+CONFIG_6LOWPAN_GHC_ICMPV6=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_BATMAN_ADV=m
 CONFIG_BATMAN_ADV_DAT=y
@@ -353,6 +361,7 @@ CONFIG_ATARILANCE=y
 # CONFIG_NET_VENDOR_INTEL is not set
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
 CONFIG_NE2000=y
 # CONFIG_NET_VENDOR_QUALCOMM is not set
 # CONFIG_NET_VENDOR_RENESAS is not set
diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig
index 11a30c6..8acc65e 100644
--- a/arch/m68k/configs/bvme6000_defconfig
+++ b/arch/m68k/configs/bvme6000_defconfig
@@ -104,6 +104,8 @@ CONFIG_NFT_NAT=m
 CONFIG_NFT_QUEUE=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -262,6 +264,12 @@ CONFIG_L2TP=m
 CONFIG_BRIDGE=m
 CONFIG_ATALK=m
 CONFIG_6LOWPAN=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=m
+CONFIG_6LOWPAN_GHC_UDP=m
+CONFIG_6LOWPAN_GHC_ICMPV6=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_BATMAN_ADV=m
 CONFIG_BATMAN_ADV_DAT=y
@@ -343,6 +351,7 @@ CONFIG_BVME6000_NET=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
 # CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
 # CONFIG_NET_VENDOR_QUALCOMM is not set
 # CONFIG_NET_VENDOR_RENESAS is not set
 # CONFIG_NET_VENDOR_ROCKER is not set
diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig
index 6630a51..0c6a3d5 100644
--- a/arch/m68k/configs/hp300_defconfig
+++ b/arch/m68k/configs/hp300_defconfig
@@ -106,6 +106,8 @@ CONFIG_NFT_NAT=m
 CONFIG_NFT_QUEUE=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -264,6 +266,12 @@ CONFIG_L2TP=m
 CONFIG_BRIDGE=m
 CONFIG_ATALK=m
 CONFIG_6LOWPAN=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=m
+CONFIG_6LOWPAN_GHC_UDP=m
+CONFIG_6LOWPAN_GHC_ICMPV6=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_BATMAN_ADV=m
 CONFIG_BATMAN_ADV_DAT=y
@@ -345,6 +353,7 @@ CONFIG_HPLANCE=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
 # CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
 # CONFIG_NET_VENDOR_QUALCOMM is not set
 # CONFIG_NET_VENDOR_RENESAS is not set
 # CONFIG_NET_VENDOR_ROCKER is not set
diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig
index 1d90b71..12a8a6c 100644
--- a/arch/m68k/configs/mac_defconfig
+++ b/arch/m68k/configs/mac_defconfig
@@ -105,6 +105,8 @@ CONFIG_NFT_NAT=m
 CONFIG_NFT_QUEUE=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -266,6 +268,12 @@ CONFIG_DEV_APPLETALK=m
 CONFIG_IPDDP=m
 CONFIG_IPDDP_ENCAP=y
 CONFIG_6LOWPAN=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=m
+CONFIG_6LOWPAN_GHC_UDP=m
+CONFIG_6LOWPAN_GHC_ICMPV6=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_BATMAN_ADV=m
 CONFIG_BATMAN_ADV_DAT=y
@@ -362,6 +370,7 @@ CONFIG_MAC89x0=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
 CONFIG_MACSONIC=y
+# CONFIG_NET_VENDOR_NETRONOME is not set
 CONFIG_MAC8390=y
 # CONFIG_NET_VENDOR_QUALCOMM is not set
 # CONFIG_NET_VENDOR_RENESAS is not set
diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig
index 1fd21c1..64ff2dc 100644
--- a/arch/m68k/configs/multi_defconfig
+++ b/arch/m68k/configs/multi_defconfig
@@ -115,6 +115,8 @@ CONFIG_NFT_NAT=m
 CONFIG_NFT_QUEUE=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -276,6 +278,12 @@ CONFIG_DEV_APPLETALK=m
 CONFIG_IPDDP=m
 CONFIG_IPDDP_ENCAP=y
 CONFIG_6LOWPAN=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=m
+CONFIG_6LOWPAN_GHC_UDP=m
+CONFIG_6LOWPAN_GHC_ICMPV6=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_BATMAN_ADV=m
 CONFIG_BATMAN_ADV_DAT=y
@@ -404,6 +412,7 @@ CONFIG_MVME16x_NET=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
 CONFIG_MACSONIC=y
+# CONFIG_NET_VENDOR_NETRONOME is not set
 CONFIG_HYDRA=y
 CONFIG_MAC8390=y
 CONFIG_NE2000=y
diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig
index 74e10f7..07fc6ab 100644
--- a/arch/m68k/configs/mvme147_defconfig
+++ b/arch/m68k/configs/mvme147_defconfig
@@ -103,6 +103,8 @@ CONFIG_NFT_NAT=m
 CONFIG_NFT_QUEUE=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -261,6 +263,12 @@ CONFIG_L2TP=m
 CONFIG_BRIDGE=m
 CONFIG_ATALK=m
 CONFIG_6LOWPAN=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=m
+CONFIG_6LOWPAN_GHC_UDP=m
+CONFIG_6LOWPAN_GHC_ICMPV6=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_BATMAN_ADV=m
 CONFIG_BATMAN_ADV_DAT=y
@@ -343,6 +351,7 @@ CONFIG_MVME147_NET=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
 # CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
 # CONFIG_NET_VENDOR_QUALCOMM is not set
 # CONFIG_NET_VENDOR_RENESAS is not set
 # CONFIG_NET_VENDOR_ROCKER is not set
diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig
index 7034e71..69903de 100644
--- a/arch/m68k/configs/mvme16x_defconfig
+++ b/arch/m68k/configs/mvme16x_defconfig
@@ -104,6 +104,8 @@ CONFIG_NFT_NAT=m
 CONFIG_NFT_QUEUE=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -262,6 +264,12 @@ CONFIG_L2TP=m
 CONFIG_BRIDGE=m
 CONFIG_ATALK=m
 CONFIG_6LOWPAN=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=m
+CONFIG_6LOWPAN_GHC_UDP=m
+CONFIG_6LOWPAN_GHC_ICMPV6=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_BATMAN_ADV=m
 CONFIG_BATMAN_ADV_DAT=y
@@ -343,6 +351,7 @@ CONFIG_MVME16x_NET=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
 # CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
 # CONFIG_NET_VENDOR_QUALCOMM is not set
 # CONFIG_NET_VENDOR_RENESAS is not set
 # CONFIG_NET_VENDOR_ROCKER is not set
diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig
index f7deb5f..bd84016 100644
--- a/arch/m68k/configs/q40_defconfig
+++ b/arch/m68k/configs/q40_defconfig
@@ -104,6 +104,8 @@ CONFIG_NFT_NAT=m
 CONFIG_NFT_QUEUE=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -262,6 +264,12 @@ CONFIG_L2TP=m
 CONFIG_BRIDGE=m
 CONFIG_ATALK=m
 CONFIG_6LOWPAN=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=m
+CONFIG_6LOWPAN_GHC_UDP=m
+CONFIG_6LOWPAN_GHC_ICMPV6=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_BATMAN_ADV=m
 CONFIG_BATMAN_ADV_DAT=y
@@ -352,6 +360,7 @@ CONFIG_VETH=m
 # CONFIG_NET_VENDOR_INTEL is not set
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
 CONFIG_NE2000=y
 # CONFIG_NET_VENDOR_QUALCOMM is not set
 # CONFIG_NET_VENDOR_RENESAS is not set
diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig
index 0ce79eb..5f9fb3a 100644
--- a/arch/m68k/configs/sun3_defconfig
+++ b/arch/m68k/configs/sun3_defconfig
@@ -101,6 +101,8 @@ CONFIG_NFT_NAT=m
 CONFIG_NFT_QUEUE=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -259,6 +261,12 @@ CONFIG_L2TP=m
 CONFIG_BRIDGE=m
 CONFIG_ATALK=m
 CONFIG_6LOWPAN=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=m
+CONFIG_6LOWPAN_GHC_UDP=m
+CONFIG_6LOWPAN_GHC_ICMPV6=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_BATMAN_ADV=m
 CONFIG_BATMAN_ADV_DAT=y
@@ -340,6 +348,7 @@ CONFIG_SUN3_82586=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
 # CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
 # CONFIG_NET_VENDOR_QUALCOMM is not set
 # CONFIG_NET_VENDOR_RENESAS is not set
 # CONFIG_NET_VENDOR_ROCKER is not set
diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig
index 4cb787e..5d1c674 100644
--- a/arch/m68k/configs/sun3x_defconfig
+++ b/arch/m68k/configs/sun3x_defconfig
@@ -101,6 +101,8 @@ CONFIG_NFT_NAT=m
 CONFIG_NFT_QUEUE=m
 CONFIG_NFT_REJECT=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NFT_DUP_NETDEV=m
+CONFIG_NFT_FWD_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -259,6 +261,12 @@ CONFIG_L2TP=m
 CONFIG_BRIDGE=m
 CONFIG_ATALK=m
 CONFIG_6LOWPAN=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=m
+CONFIG_6LOWPAN_GHC_UDP=m
+CONFIG_6LOWPAN_GHC_ICMPV6=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=m
+CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_BATMAN_ADV=m
 CONFIG_BATMAN_ADV_DAT=y
@@ -341,6 +349,7 @@ CONFIG_SUN3LANCE=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
 # CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
 # CONFIG_NET_VENDOR_QUALCOMM is not set
 # CONFIG_NET_VENDOR_RENESAS is not set
 # CONFIG_NET_VENDOR_ROCKER is not set
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index f9d96bf..bafaff6 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -4,7 +4,7 @@
 #include <uapi/asm/unistd.h>
 
 
-#define NR_syscalls		376
+#define NR_syscalls		377
 
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_OLD_STAT
diff --git a/arch/m68k/include/uapi/asm/unistd.h b/arch/m68k/include/uapi/asm/unistd.h
index 36cf129..0ca7296 100644
--- a/arch/m68k/include/uapi/asm/unistd.h
+++ b/arch/m68k/include/uapi/asm/unistd.h
@@ -381,5 +381,6 @@
 #define __NR_userfaultfd	373
 #define __NR_membarrier		374
 #define __NR_mlock2		375
+#define __NR_copy_file_range	376
 
 #endif /* _UAPI_ASM_M68K_UNISTD_H_ */
diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S
index 282cd90..8bb9426 100644
--- a/arch/m68k/kernel/syscalltable.S
+++ b/arch/m68k/kernel/syscalltable.S
@@ -396,3 +396,4 @@ ENTRY(sys_call_table)
 	.long sys_userfaultfd
 	.long sys_membarrier
 	.long sys_mlock2		/* 375 */
+	.long sys_copy_file_range
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 57a945e..74a3db9 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2085,7 +2085,7 @@ config PAGE_SIZE_32KB
 
 config PAGE_SIZE_64KB
 	bool "64kB"
-	depends on !CPU_R3000 && !CPU_TX39XX
+	depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
 	help
 	  Using 64kB page size will result in higher performance kernel at
 	  the price of higher memory consumption.  This option is available on
diff --git a/arch/mips/boot/dts/brcm/bcm6328.dtsi b/arch/mips/boot/dts/brcm/bcm6328.dtsi
index 459b9b2..d61b161 100644
--- a/arch/mips/boot/dts/brcm/bcm6328.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm6328.dtsi
@@ -74,6 +74,7 @@
 		timer: timer@10000040 {
 			compatible = "syscon";
 			reg = <0x10000040 0x2c>;
+			little-endian;
 		};
 
 		reboot {
diff --git a/arch/mips/boot/dts/brcm/bcm7125.dtsi b/arch/mips/boot/dts/brcm/bcm7125.dtsi
index 4fc7ece..1a7efa8 100644
--- a/arch/mips/boot/dts/brcm/bcm7125.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7125.dtsi
@@ -98,6 +98,7 @@
 		sun_top_ctrl: syscon@404000 {
 			compatible = "brcm,bcm7125-sun-top-ctrl", "syscon";
 			reg = <0x404000 0x60c>;
+			little-endian;
 		};
 
 		reboot {
diff --git a/arch/mips/boot/dts/brcm/bcm7346.dtsi b/arch/mips/boot/dts/brcm/bcm7346.dtsi
index a3039bb..d4bf52c 100644
--- a/arch/mips/boot/dts/brcm/bcm7346.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7346.dtsi
@@ -118,6 +118,7 @@
 		sun_top_ctrl: syscon@404000 {
 			compatible = "brcm,bcm7346-sun-top-ctrl", "syscon";
 			reg = <0x404000 0x51c>;
+			little-endian;
 		};
 
 		reboot {
diff --git a/arch/mips/boot/dts/brcm/bcm7358.dtsi b/arch/mips/boot/dts/brcm/bcm7358.dtsi
index 4274ff4..8e25016 100644
--- a/arch/mips/boot/dts/brcm/bcm7358.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7358.dtsi
@@ -112,6 +112,7 @@
 		sun_top_ctrl: syscon@404000 {
 			compatible = "brcm,bcm7358-sun-top-ctrl", "syscon";
 			reg = <0x404000 0x51c>;
+			little-endian;
 		};
 
 		reboot {
diff --git a/arch/mips/boot/dts/brcm/bcm7360.dtsi b/arch/mips/boot/dts/brcm/bcm7360.dtsi
index 0dcc9163..7e5f760 100644
--- a/arch/mips/boot/dts/brcm/bcm7360.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7360.dtsi
@@ -112,6 +112,7 @@
 		sun_top_ctrl: syscon@404000 {
 			compatible = "brcm,bcm7360-sun-top-ctrl", "syscon";
 			reg = <0x404000 0x51c>;
+			little-endian;
 		};
 
 		reboot {
diff --git a/arch/mips/boot/dts/brcm/bcm7362.dtsi b/arch/mips/boot/dts/brcm/bcm7362.dtsi
index 2f3f9fc..c739ea7 100644
--- a/arch/mips/boot/dts/brcm/bcm7362.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7362.dtsi
@@ -118,6 +118,7 @@
 		sun_top_ctrl: syscon@404000 {
 			compatible = "brcm,bcm7362-sun-top-ctrl", "syscon";
 			reg = <0x404000 0x51c>;
+			little-endian;
 		};
 
 		reboot {
diff --git a/arch/mips/boot/dts/brcm/bcm7420.dtsi b/arch/mips/boot/dts/brcm/bcm7420.dtsi
index bee221b..5f55d0a 100644
--- a/arch/mips/boot/dts/brcm/bcm7420.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7420.dtsi
@@ -99,6 +99,7 @@
 		sun_top_ctrl: syscon@404000 {
 			compatible = "brcm,bcm7420-sun-top-ctrl", "syscon";
 			reg = <0x404000 0x60c>;
+			little-endian;
 		};
 
 		reboot {
diff --git a/arch/mips/boot/dts/brcm/bcm7425.dtsi b/arch/mips/boot/dts/brcm/bcm7425.dtsi
index 571f30f..e24d41a 100644
--- a/arch/mips/boot/dts/brcm/bcm7425.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7425.dtsi
@@ -100,6 +100,7 @@
 		sun_top_ctrl: syscon@404000 {
 			compatible = "brcm,bcm7425-sun-top-ctrl", "syscon";
 			reg = <0x404000 0x51c>;
+			little-endian;
 		};
 
 		reboot {
diff --git a/arch/mips/boot/dts/brcm/bcm7435.dtsi b/arch/mips/boot/dts/brcm/bcm7435.dtsi
index 614ee21..8b9432c 100644
--- a/arch/mips/boot/dts/brcm/bcm7435.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7435.dtsi
@@ -114,6 +114,7 @@
 		sun_top_ctrl: syscon@404000 {
 			compatible = "brcm,bcm7425-sun-top-ctrl", "syscon";
 			reg = <0x404000 0x51c>;
+			little-endian;
 		};
 
 		reboot {
diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
index cefb7a5..e090fc3 100644
--- a/arch/mips/include/asm/elf.h
+++ b/arch/mips/include/asm/elf.h
@@ -227,7 +227,7 @@ struct mips_elf_abiflags_v0 {
 	int __res = 1;							\
 	struct elfhdr *__h = (hdr);					\
 									\
-	if (__h->e_machine != EM_MIPS)					\
+	if (!mips_elf_check_machine(__h))				\
 		__res = 0;						\
 	if (__h->e_ident[EI_CLASS] != ELFCLASS32)			\
 		__res = 0;						\
@@ -258,7 +258,7 @@ struct mips_elf_abiflags_v0 {
 	int __res = 1;							\
 	struct elfhdr *__h = (hdr);					\
 									\
-	if (__h->e_machine != EM_MIPS)					\
+	if (!mips_elf_check_machine(__h))				\
 		__res = 0;						\
 	if (__h->e_ident[EI_CLASS] != ELFCLASS64)			\
 		__res = 0;						\
@@ -285,6 +285,11 @@ struct mips_elf_abiflags_v0 {
 
 #endif /* !defined(ELF_ARCH) */
 
+#define mips_elf_check_machine(x) ((x)->e_machine == EM_MIPS)
+
+#define vmcore_elf32_check_arch mips_elf_check_machine
+#define vmcore_elf64_check_arch mips_elf_check_machine
+
 struct mips_abi;
 
 extern struct mips_abi mips_abi;
diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index 9cbf383..f06f97b 100644
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -179,6 +179,10 @@ static inline void lose_fpu_inatomic(int save, struct task_struct *tsk)
 		if (save)
 			_save_fp(tsk);
 		__disable_fpu();
+	} else {
+		/* FPU should not have been left enabled with no owner */
+		WARN(read_c0_status() & ST0_CU1,
+		     "Orphaned FPU left enabled");
 	}
 	KSTK_STATUS(tsk) &= ~ST0_CU1;
 	clear_tsk_thread_flag(tsk, TIF_USEDFPU);
diff --git a/arch/mips/include/asm/octeon/octeon-feature.h b/arch/mips/include/asm/octeon/octeon-feature.h
index 8ebd3f57..3ed10a8 100644
--- a/arch/mips/include/asm/octeon/octeon-feature.h
+++ b/arch/mips/include/asm/octeon/octeon-feature.h
@@ -128,7 +128,8 @@ static inline int octeon_has_feature(enum octeon_feature feature)
 	case OCTEON_FEATURE_PCIE:
 		return OCTEON_IS_MODEL(OCTEON_CN56XX)
 			|| OCTEON_IS_MODEL(OCTEON_CN52XX)
-			|| OCTEON_IS_MODEL(OCTEON_CN6XXX);
+			|| OCTEON_IS_MODEL(OCTEON_CN6XXX)
+			|| OCTEON_IS_MODEL(OCTEON_CN7XXX);
 
 	case OCTEON_FEATURE_SRIO:
 		return OCTEON_IS_MODEL(OCTEON_CN63XX)
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index 3f832c3..041153f 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -45,7 +45,7 @@ extern unsigned int vced_count, vcei_count;
  * User space process size: 2GB. This is hardcoded into a few places,
  * so don't change it unless you know what you are doing.
  */
-#define TASK_SIZE	0x7fff8000UL
+#define TASK_SIZE	0x80000000UL
 #endif
 
 #define STACK_TOP_MAX	TASK_SIZE
diff --git a/arch/mips/include/asm/stackframe.h b/arch/mips/include/asm/stackframe.h
index a71da57..eebf395 100644
--- a/arch/mips/include/asm/stackframe.h
+++ b/arch/mips/include/asm/stackframe.h
@@ -289,7 +289,7 @@
 		.set	reorder
 		.set	noat
 		mfc0	a0, CP0_STATUS
-		li	v1, 0xff00
+		li	v1, ST0_CU1 | ST0_IM
 		ori	a0, STATMASK
 		xori	a0, STATMASK
 		mtc0	a0, CP0_STATUS
@@ -330,7 +330,7 @@
 		ori	a0, STATMASK
 		xori	a0, STATMASK
 		mtc0	a0, CP0_STATUS
-		li	v1, 0xff00
+		li	v1, ST0_CU1 | ST0_FR | ST0_IM
 		and	a0, v1
 		LONG_L	v0, PT_STATUS(sp)
 		nor	v1, $0, v1
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 6499d93..47bc45a 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -101,10 +101,8 @@ static inline void syscall_get_arguments(struct task_struct *task,
 	/* O32 ABI syscall() - Either 64-bit with O32 or 32-bit */
 	if ((config_enabled(CONFIG_32BIT) ||
 	    test_tsk_thread_flag(task, TIF_32BIT_REGS)) &&
-	    (regs->regs[2] == __NR_syscall)) {
+	    (regs->regs[2] == __NR_syscall))
 		i++;
-		n++;
-	}
 
 	while (n--)
 		ret |= mips_get_syscall_arg(args++, task, regs, i++);
diff --git a/arch/mips/include/uapi/asm/unistd.h b/arch/mips/include/uapi/asm/unistd.h
index 90f03a7..3129795 100644
--- a/arch/mips/include/uapi/asm/unistd.h
+++ b/arch/mips/include/uapi/asm/unistd.h
@@ -380,16 +380,17 @@
 #define __NR_userfaultfd		(__NR_Linux + 357)
 #define __NR_membarrier			(__NR_Linux + 358)
 #define __NR_mlock2			(__NR_Linux + 359)
+#define __NR_copy_file_range		(__NR_Linux + 360)
 
 /*
  * Offset of the last Linux o32 flavoured syscall
  */
-#define __NR_Linux_syscalls		359
+#define __NR_Linux_syscalls		360
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
 
 #define __NR_O32_Linux			4000
-#define __NR_O32_Linux_syscalls		359
+#define __NR_O32_Linux_syscalls		360
 
 #if _MIPS_SIM == _MIPS_SIM_ABI64
 
@@ -717,16 +718,17 @@
 #define __NR_userfaultfd		(__NR_Linux + 317)
 #define __NR_membarrier			(__NR_Linux + 318)
 #define __NR_mlock2			(__NR_Linux + 319)
+#define __NR_copy_file_range		(__NR_Linux + 320)
 
 /*
  * Offset of the last Linux 64-bit flavoured syscall
  */
-#define __NR_Linux_syscalls		319
+#define __NR_Linux_syscalls		320
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
 
 #define __NR_64_Linux			5000
-#define __NR_64_Linux_syscalls		319
+#define __NR_64_Linux_syscalls		320
 
 #if _MIPS_SIM == _MIPS_SIM_NABI32
 
@@ -1058,15 +1060,16 @@
 #define __NR_userfaultfd		(__NR_Linux + 321)
 #define __NR_membarrier			(__NR_Linux + 322)
 #define __NR_mlock2			(__NR_Linux + 323)
+#define __NR_copy_file_range		(__NR_Linux + 324)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		323
+#define __NR_Linux_syscalls		324
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
 #define __NR_N32_Linux			6000
-#define __NR_N32_Linux_syscalls		323
+#define __NR_N32_Linux_syscalls		324
 
 #endif /* _UAPI_ASM_UNISTD_H */
diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c
index 1188e00..1b992c6 100644
--- a/arch/mips/kernel/binfmt_elfn32.c
+++ b/arch/mips/kernel/binfmt_elfn32.c
@@ -35,7 +35,7 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 	int __res = 1;							\
 	struct elfhdr *__h = (hdr);					\
 									\
-	if (__h->e_machine != EM_MIPS)					\
+	if (!mips_elf_check_machine(__h))				\
 		__res = 0;						\
 	if (__h->e_ident[EI_CLASS] != ELFCLASS32)			\
 		__res = 0;						\
diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c
index 9287678..abd3aff 100644
--- a/arch/mips/kernel/binfmt_elfo32.c
+++ b/arch/mips/kernel/binfmt_elfo32.c
@@ -47,7 +47,7 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 	int __res = 1;							\
 	struct elfhdr *__h = (hdr);					\
 									\
-	if (__h->e_machine != EM_MIPS)					\
+	if (!mips_elf_check_machine(__h))				\
 		__res = 0;						\
 	if (__h->e_ident[EI_CLASS] != ELFCLASS32)			\
 		__res = 0;						\
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index f2975d4..eddd5fd 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -65,12 +65,10 @@ void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp)
 	status = regs->cp0_status & ~(ST0_CU0|ST0_CU1|ST0_FR|KU_MASK);
 	status |= KU_USER;
 	regs->cp0_status = status;
+	lose_fpu(0);
+	clear_thread_flag(TIF_MSA_CTX_LIVE);
 	clear_used_math();
-	clear_fpu_owner();
 	init_dsp();
-	clear_thread_flag(TIF_USEDMSA);
-	clear_thread_flag(TIF_MSA_CTX_LIVE);
-	disable_msa();
 	regs->cp0_epc = pc;
 	regs->regs[29] = sp;
 }
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 2d23c83..a563174 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -595,3 +595,4 @@ EXPORT(sys_call_table)
 	PTR	sys_userfaultfd
 	PTR	sys_membarrier
 	PTR	sys_mlock2
+	PTR	sys_copy_file_range		/* 4360 */
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index deac633..2b2dc14 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -433,4 +433,5 @@ EXPORT(sys_call_table)
 	PTR	sys_userfaultfd
 	PTR	sys_membarrier
 	PTR	sys_mlock2
+	PTR	sys_copy_file_range		/* 5320 */
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 5a69eb4..2bf5c85 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -423,4 +423,5 @@ EXPORT(sysn32_call_table)
 	PTR	sys_userfaultfd
 	PTR	sys_membarrier
 	PTR	sys_mlock2
+	PTR	sys_copy_file_range
 	.size	sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index e4b6d7c..c5b759e 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -578,4 +578,5 @@ EXPORT(sys32_call_table)
 	PTR	sys_userfaultfd
 	PTR	sys_membarrier
 	PTR	sys_mlock2
+	PTR	sys_copy_file_range		/* 4360 */
 	.size	sys32_call_table,.-sys32_call_table
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 569a7d5..5fdaf8b 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -782,6 +782,7 @@ static inline void prefill_possible_map(void) {}
 void __init setup_arch(char **cmdline_p)
 {
 	cpu_probe();
+	mips_cm_probe();
 	prom_init();
 
 	setup_early_fdc_console();
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index bafcb7a..ae790c5 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -663,7 +663,7 @@ static int simulate_rdhwr_normal(struct pt_regs *regs, unsigned int opcode)
 	return -1;
 }
 
-static int simulate_rdhwr_mm(struct pt_regs *regs, unsigned short opcode)
+static int simulate_rdhwr_mm(struct pt_regs *regs, unsigned int opcode)
 {
 	if ((opcode & MM_POOL32A_FUNC) == MM_RDHWR) {
 		int rd = (opcode & MM_RS) >> 16;
@@ -1119,11 +1119,12 @@ no_r2_instr:
 	if (get_isa16_mode(regs->cp0_epc)) {
 		unsigned short mmop[2] = { 0 };
 
-		if (unlikely(get_user(mmop[0], epc) < 0))
+		if (unlikely(get_user(mmop[0], (u16 __user *)epc + 0) < 0))
 			status = SIGSEGV;
-		if (unlikely(get_user(mmop[1], epc) < 0))
+		if (unlikely(get_user(mmop[1], (u16 __user *)epc + 1) < 0))
 			status = SIGSEGV;
-		opcode = (mmop[0] << 16) | mmop[1];
+		opcode = mmop[0];
+		opcode = (opcode << 16) | mmop[1];
 
 		if (status < 0)
 			status = simulate_rdhwr_mm(regs, opcode);
@@ -1369,26 +1370,12 @@ asmlinkage void do_cpu(struct pt_regs *regs)
 		if (unlikely(compute_return_epc(regs) < 0))
 			break;
 
-		if (get_isa16_mode(regs->cp0_epc)) {
-			unsigned short mmop[2] = { 0 };
-
-			if (unlikely(get_user(mmop[0], epc) < 0))
-				status = SIGSEGV;
-			if (unlikely(get_user(mmop[1], epc) < 0))
-				status = SIGSEGV;
-			opcode = (mmop[0] << 16) | mmop[1];
-
-			if (status < 0)
-				status = simulate_rdhwr_mm(regs, opcode);
-		} else {
+		if (!get_isa16_mode(regs->cp0_epc)) {
 			if (unlikely(get_user(opcode, epc) < 0))
 				status = SIGSEGV;
 
 			if (!cpu_has_llsc && status < 0)
 				status = simulate_llsc(regs, opcode);
-
-			if (status < 0)
-				status = simulate_rdhwr_normal(regs, opcode);
 		}
 
 		if (status < 0)
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index 5c81fdd..3530376 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -146,7 +146,7 @@ unsigned long arch_mmap_rnd(void)
 {
 	unsigned long rnd;
 
-	rnd = (unsigned long)get_random_int();
+	rnd = get_random_long();
 	rnd <<= PAGE_SHIFT;
 	if (TASK_IS_32BIT_ADDR)
 		rnd &= 0xfffffful;
@@ -174,7 +174,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 
 static inline unsigned long brk_rnd(void)
 {
-	unsigned long rnd = get_random_int();
+	unsigned long rnd = get_random_long();
 
 	rnd = rnd << PAGE_SHIFT;
 	/* 8MB for 32bit, 256MB for 64bit */
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
index 3bd0597..2496475 100644
--- a/arch/mips/mm/sc-mips.c
+++ b/arch/mips/mm/sc-mips.c
@@ -181,10 +181,6 @@ static int __init mips_sc_probe_cm3(void)
 	return 1;
 }
 
-void __weak platform_early_l2_init(void)
-{
-}
-
 static inline int __init mips_sc_probe(void)
 {
 	struct cpuinfo_mips *c = &current_cpu_data;
@@ -194,12 +190,6 @@ static inline int __init mips_sc_probe(void)
 	/* Mark as not present until probe completed */
 	c->scache.flags |= MIPS_CACHE_NOT_PRESENT;
 
-	/*
-	 * Do we need some platform specific probing before
-	 * we configure L2?
-	 */
-	platform_early_l2_init();
-
 	if (mips_cm_revision() >= CM_REV_CM3)
 		return mips_sc_probe_cm3();
 
diff --git a/arch/mips/mti-malta/malta-init.c b/arch/mips/mti-malta/malta-init.c
index 571148c..dc2c521 100644
--- a/arch/mips/mti-malta/malta-init.c
+++ b/arch/mips/mti-malta/malta-init.c
@@ -293,7 +293,6 @@ mips_pci_controller:
 	console_config();
 #endif
 	/* Early detection of CMP support */
-	mips_cm_probe();
 	mips_cpc_probe();
 
 	if (!register_cps_smp_ops())
@@ -304,10 +303,3 @@ mips_pci_controller:
 		return;
 	register_up_smp_ops();
 }
-
-void platform_early_l2_init(void)
-{
-	/* L2 configuration lives in the CM3 */
-	if (mips_cm_revision() >= CM_REV_CM3)
-		mips_cm_probe();
-}
diff --git a/arch/mips/pci/pci-mt7620.c b/arch/mips/pci/pci-mt7620.c
index a009ee4..1ae932c 100644
--- a/arch/mips/pci/pci-mt7620.c
+++ b/arch/mips/pci/pci-mt7620.c
@@ -297,12 +297,12 @@ static int mt7620_pci_probe(struct platform_device *pdev)
 		return PTR_ERR(rstpcie0);
 
 	bridge_base = devm_ioremap_resource(&pdev->dev, bridge_res);
-	if (!bridge_base)
-		return -ENOMEM;
+	if (IS_ERR(bridge_base))
+		return PTR_ERR(bridge_base);
 
 	pcie_base = devm_ioremap_resource(&pdev->dev, pcie_res);
-	if (!pcie_base)
-		return -ENOMEM;
+	if (IS_ERR(pcie_base))
+		return PTR_ERR(pcie_base);
 
 	iomem_resource.start = 0;
 	iomem_resource.end = ~0;
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index e4824fd..9faa18c 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -557,7 +557,7 @@ choice
 
 config PPC_4K_PAGES
 	bool "4k page size"
-	select HAVE_ARCH_SOFT_DIRTY if CHECKPOINT_RESTORE && PPC_BOOK3S
+	select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64
 
 config PPC_16K_PAGES
 	bool "16k page size"
@@ -566,7 +566,7 @@ config PPC_16K_PAGES
 config PPC_64K_PAGES
 	bool "64k page size"
 	depends on !PPC_FSL_BOOK3E && (44x || PPC_STD_MMU_64 || PPC_BOOK3E_64)
-	select HAVE_ARCH_SOFT_DIRTY if CHECKPOINT_RESTORE && PPC_BOOK3S
+	select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64
 
 config PPC_256K_PAGES
 	bool "256k page size"
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 8d1c41d..ac07a30 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -281,6 +281,10 @@ extern pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);
 extern void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address,
 			    pmd_t *pmdp);
 
+#define __HAVE_ARCH_PMDP_HUGE_SPLIT_PREPARE
+extern void pmdp_huge_split_prepare(struct vm_area_struct *vma,
+				    unsigned long address, pmd_t *pmdp);
+
 #define pmd_move_must_withdraw pmd_move_must_withdraw
 struct spinlock;
 static inline int pmd_move_must_withdraw(struct spinlock *new_pmd_ptl,
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h
index c5eb86f..867c39b 100644
--- a/arch/powerpc/include/asm/eeh.h
+++ b/arch/powerpc/include/asm/eeh.h
@@ -81,6 +81,7 @@ struct pci_dn;
 #define EEH_PE_KEEP		(1 << 8)	/* Keep PE on hotplug	*/
 #define EEH_PE_CFG_RESTRICTED	(1 << 9)	/* Block config on error */
 #define EEH_PE_REMOVED		(1 << 10)	/* Removed permanently	*/
+#define EEH_PE_PRI_BUS		(1 << 11)	/* Cached primary bus   */
 
 struct eeh_pe {
 	int type;			/* PE type: PHB/Bus/Device	*/
diff --git a/arch/powerpc/include/asm/trace.h b/arch/powerpc/include/asm/trace.h
index 8e86b48..32e36b1 100644
--- a/arch/powerpc/include/asm/trace.h
+++ b/arch/powerpc/include/asm/trace.h
@@ -57,12 +57,14 @@ DEFINE_EVENT(ppc64_interrupt_class, timer_interrupt_exit,
 extern void hcall_tracepoint_regfunc(void);
 extern void hcall_tracepoint_unregfunc(void);
 
-TRACE_EVENT_FN(hcall_entry,
+TRACE_EVENT_FN_COND(hcall_entry,
 
 	TP_PROTO(unsigned long opcode, unsigned long *args),
 
 	TP_ARGS(opcode, args),
 
+	TP_CONDITION(cpu_online(raw_smp_processor_id())),
+
 	TP_STRUCT__entry(
 		__field(unsigned long, opcode)
 	),
@@ -76,13 +78,15 @@ TRACE_EVENT_FN(hcall_entry,
 	hcall_tracepoint_regfunc, hcall_tracepoint_unregfunc
 );
 
-TRACE_EVENT_FN(hcall_exit,
+TRACE_EVENT_FN_COND(hcall_exit,
 
 	TP_PROTO(unsigned long opcode, unsigned long retval,
 		unsigned long *retbuf),
 
 	TP_ARGS(opcode, retval, retbuf),
 
+	TP_CONDITION(cpu_online(raw_smp_processor_id())),
+
 	TP_STRUCT__entry(
 		__field(unsigned long, opcode)
 		__field(unsigned long, retval)
diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c
index 9387421..650cfb3 100644
--- a/arch/powerpc/kernel/eeh_driver.c
+++ b/arch/powerpc/kernel/eeh_driver.c
@@ -418,8 +418,7 @@ static void *eeh_rmv_device(void *data, void *userdata)
 		eeh_pcid_put(dev);
 		if (driver->err_handler &&
 		    driver->err_handler->error_detected &&
-		    driver->err_handler->slot_reset &&
-		    driver->err_handler->resume)
+		    driver->err_handler->slot_reset)
 			return NULL;
 	}
 
@@ -564,6 +563,7 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus)
 	 */
 	eeh_pe_state_mark(pe, EEH_PE_KEEP);
 	if (bus) {
+		eeh_pe_state_clear(pe, EEH_PE_PRI_BUS);
 		pci_lock_rescan_remove();
 		pcibios_remove_pci_devices(bus);
 		pci_unlock_rescan_remove();
@@ -803,6 +803,7 @@ perm_error:
 	 * the their PCI config any more.
 	 */
 	if (frozen_bus) {
+		eeh_pe_state_clear(pe, EEH_PE_PRI_BUS);
 		eeh_pe_dev_mode_mark(pe, EEH_DEV_REMOVED);
 
 		pci_lock_rescan_remove();
@@ -886,6 +887,7 @@ static void eeh_handle_special_event(void)
 					continue;
 
 				/* Notify all devices to be down */
+				eeh_pe_state_clear(pe, EEH_PE_PRI_BUS);
 				bus = eeh_pe_bus_get(phb_pe);
 				eeh_pe_dev_traverse(pe,
 					eeh_report_failure, NULL);
diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c
index ca9e537..98f8180 100644
--- a/arch/powerpc/kernel/eeh_pe.c
+++ b/arch/powerpc/kernel/eeh_pe.c
@@ -928,7 +928,7 @@ struct pci_bus *eeh_pe_bus_get(struct eeh_pe *pe)
 		bus = pe->phb->bus;
 	} else if (pe->type & EEH_PE_BUS ||
 		   pe->type & EEH_PE_DEVICE) {
-		if (pe->bus) {
+		if (pe->state & EEH_PE_PRI_BUS) {
 			bus = pe->bus;
 			goto out;
 		}
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index ac64ffd..08b7a40 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -340,7 +340,7 @@ static void dedotify(Elf64_Sym *syms, unsigned int numsyms, char *strtab)
 			if (name[0] == '.') {
 				if (strcmp(name+1, "TOC.") == 0)
 					syms[i].st_shndx = SHN_ABS;
-				memmove(name, name+1, strlen(name));
+				syms[i].st_name++;
 			}
 		}
 	}
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index dccc87e..3c5736e 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1768,9 +1768,9 @@ static inline unsigned long brk_rnd(void)
 
 	/* 8MB for 32bit, 1GB for 64bit */
 	if (is_32bit_task())
-		rnd = (long)(get_random_int() % (1<<(23-PAGE_SHIFT)));
+		rnd = (get_random_long() % (1UL<<(23-PAGE_SHIFT)));
 	else
-		rnd = (long)(get_random_int() % (1<<(30-PAGE_SHIFT)));
+		rnd = (get_random_long() % (1UL<<(30-PAGE_SHIFT)));
 
 	return rnd << PAGE_SHIFT;
 }
diff --git a/arch/powerpc/mm/hash64_64k.c b/arch/powerpc/mm/hash64_64k.c
index 0762c1e..edb0991 100644
--- a/arch/powerpc/mm/hash64_64k.c
+++ b/arch/powerpc/mm/hash64_64k.c
@@ -111,7 +111,13 @@ int __hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid,
 	 */
 	if (!(old_pte & _PAGE_COMBO)) {
 		flush_hash_page(vpn, rpte, MMU_PAGE_64K, ssize, flags);
-		old_pte &= ~_PAGE_HASHPTE | _PAGE_F_GIX | _PAGE_F_SECOND;
+		/*
+		 * clear the old slot details from the old and new pte.
+		 * On hash insert failure we use old pte value and we don't
+		 * want slot information there if we have a insert failure.
+		 */
+		old_pte &= ~(_PAGE_HASHPTE | _PAGE_F_GIX | _PAGE_F_SECOND);
+		new_pte &= ~(_PAGE_HASHPTE | _PAGE_F_GIX | _PAGE_F_SECOND);
 		goto htab_insert_hpte;
 	}
 	/*
diff --git a/arch/powerpc/mm/hugepage-hash64.c b/arch/powerpc/mm/hugepage-hash64.c
index 49b152b..eb2accd 100644
--- a/arch/powerpc/mm/hugepage-hash64.c
+++ b/arch/powerpc/mm/hugepage-hash64.c
@@ -78,9 +78,19 @@ int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid,
 		 * base page size. This is because demote_segment won't flush
 		 * hash page table entries.
 		 */
-		if ((old_pmd & _PAGE_HASHPTE) && !(old_pmd & _PAGE_COMBO))
+		if ((old_pmd & _PAGE_HASHPTE) && !(old_pmd & _PAGE_COMBO)) {
 			flush_hash_hugepage(vsid, ea, pmdp, MMU_PAGE_64K,
 					    ssize, flags);
+			/*
+			 * With THP, we also clear the slot information with
+			 * respect to all the 64K hash pte mapping the 16MB
+			 * page. They are all invalid now. This make sure we
+			 * don't find the slot valid when we fault with 4k
+			 * base page size.
+			 *
+			 */
+			memset(hpte_slot_array, 0, PTE_FRAG_SIZE);
+		}
 	}
 
 	valid = hpte_valid(hpte_slot_array, index);
diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
index 0f0502e..4087705 100644
--- a/arch/powerpc/mm/mmap.c
+++ b/arch/powerpc/mm/mmap.c
@@ -59,9 +59,9 @@ unsigned long arch_mmap_rnd(void)
 
 	/* 8MB for 32bit, 1GB for 64bit */
 	if (is_32bit_task())
-		rnd = (unsigned long)get_random_int() % (1<<(23-PAGE_SHIFT));
+		rnd = get_random_long() % (1<<(23-PAGE_SHIFT));
 	else
-		rnd = (unsigned long)get_random_int() % (1<<(30-PAGE_SHIFT));
+		rnd = get_random_long() % (1UL<<(30-PAGE_SHIFT));
 
 	return rnd << PAGE_SHIFT;
 }
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index 3124a20..cdf2123 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -646,6 +646,28 @@ pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp)
 	return pgtable;
 }
 
+void pmdp_huge_split_prepare(struct vm_area_struct *vma,
+			     unsigned long address, pmd_t *pmdp)
+{
+	VM_BUG_ON(address & ~HPAGE_PMD_MASK);
+	VM_BUG_ON(REGION_ID(address) != USER_REGION_ID);
+
+	/*
+	 * We can't mark the pmd none here, because that will cause a race
+	 * against exit_mmap. We need to continue mark pmd TRANS HUGE, while
+	 * we spilt, but at the same time we wan't rest of the ppc64 code
+	 * not to insert hash pte on this, because we will be modifying
+	 * the deposited pgtable in the caller of this function. Hence
+	 * clear the _PAGE_USER so that we move the fault handling to
+	 * higher level function and that will serialize against ptl.
+	 * We need to flush existing hash pte entries here even though,
+	 * the translation is still valid, because we will withdraw
+	 * pgtable_t after this.
+	 */
+	pmd_hugepage_update(vma->vm_mm, address, pmdp, _PAGE_USER, 0);
+}
+
+
 /*
  * set a new huge pmd. We should not be called for updating
  * an existing pmd entry. That should go via pmd_hugepage_update.
@@ -663,10 +685,20 @@ void set_pmd_at(struct mm_struct *mm, unsigned long addr,
 	return set_pte_at(mm, addr, pmdp_ptep(pmdp), pmd_pte(pmd));
 }
 
+/*
+ * We use this to invalidate a pmdp entry before switching from a
+ * hugepte to regular pmd entry.
+ */
 void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address,
 		     pmd_t *pmdp)
 {
 	pmd_hugepage_update(vma->vm_mm, address, pmdp, _PAGE_PRESENT, 0);
+
+	/*
+	 * This ensures that generic code that rely on IRQ disabling
+	 * to prevent a parallel THP split work as expected.
+	 */
+	kick_all_cpus_sync();
 }
 
 /*
diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c
index 5f152b9..87f47e5 100644
--- a/arch/powerpc/platforms/powernv/eeh-powernv.c
+++ b/arch/powerpc/platforms/powernv/eeh-powernv.c
@@ -444,9 +444,12 @@ static void *pnv_eeh_probe(struct pci_dn *pdn, void *data)
 	 * PCI devices of the PE are expected to be removed prior
 	 * to PE reset.
 	 */
-	if (!edev->pe->bus)
+	if (!(edev->pe->state & EEH_PE_PRI_BUS)) {
 		edev->pe->bus = pci_find_bus(hose->global_number,
 					     pdn->busno);
+		if (edev->pe->bus)
+			edev->pe->state |= EEH_PE_PRI_BUS;
+	}
 
 	/*
 	 * Enable EEH explicitly so that we will do EEH check
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 573ae19..f90dc04 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -3180,6 +3180,7 @@ static void pnv_pci_ioda_shutdown(struct pci_controller *hose)
 
 static const struct pci_controller_ops pnv_pci_ioda_controller_ops = {
        .dma_dev_setup = pnv_pci_dma_dev_setup,
+       .dma_bus_setup = pnv_pci_dma_bus_setup,
 #ifdef CONFIG_PCI_MSI
        .setup_msi_irqs = pnv_setup_msi_irqs,
        .teardown_msi_irqs = pnv_teardown_msi_irqs,
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 2f55c86..b1ef84a 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -599,6 +599,9 @@ int pnv_tce_build(struct iommu_table *tbl, long index, long npages,
 	u64 rpn = __pa(uaddr) >> tbl->it_page_shift;
 	long i;
 
+	if (proto_tce & TCE_PCI_WRITE)
+		proto_tce |= TCE_PCI_READ;
+
 	for (i = 0; i < npages; i++) {
 		unsigned long newtce = proto_tce |
 			((rpn + i) << tbl->it_page_shift);
@@ -620,6 +623,9 @@ int pnv_tce_xchg(struct iommu_table *tbl, long index,
 
 	BUG_ON(*hpa & ~IOMMU_PAGE_MASK(tbl));
 
+	if (newtce & TCE_PCI_WRITE)
+		newtce |= TCE_PCI_READ;
+
 	oldtce = xchg(pnv_tce(tbl, idx), cpu_to_be64(newtce));
 	*hpa = be64_to_cpu(oldtce) & ~(TCE_PCI_READ | TCE_PCI_WRITE);
 	*direction = iommu_tce_direction(oldtce);
@@ -760,6 +766,26 @@ void pnv_pci_dma_dev_setup(struct pci_dev *pdev)
 		phb->dma_dev_setup(phb, pdev);
 }
 
+void pnv_pci_dma_bus_setup(struct pci_bus *bus)
+{
+	struct pci_controller *hose = bus->sysdata;
+	struct pnv_phb *phb = hose->private_data;
+	struct pnv_ioda_pe *pe;
+
+	list_for_each_entry(pe, &phb->ioda.pe_list, list) {
+		if (!(pe->flags & (PNV_IODA_PE_BUS | PNV_IODA_PE_BUS_ALL)))
+			continue;
+
+		if (!pe->pbus)
+			continue;
+
+		if (bus->number == ((pe->rid >> 8) & 0xFF)) {
+			pe->pbus = bus;
+			break;
+		}
+	}
+}
+
 void pnv_pci_shutdown(void)
 {
 	struct pci_controller *hose;
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index 7f56313..00691a9 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -242,6 +242,7 @@ extern void pnv_pci_reset_secondary_bus(struct pci_dev *dev);
 extern int pnv_eeh_phb_reset(struct pci_controller *hose, int option);
 
 extern void pnv_pci_dma_dev_setup(struct pci_dev *pdev);
+extern void pnv_pci_dma_bus_setup(struct pci_bus *bus);
 extern int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type);
 extern void pnv_teardown_msi_irqs(struct pci_dev *pdev);
 
diff --git a/arch/s390/include/asm/fpu/internal.h b/arch/s390/include/asm/fpu/internal.h
index ea91ddf..629c908 100644
--- a/arch/s390/include/asm/fpu/internal.h
+++ b/arch/s390/include/asm/fpu/internal.h
@@ -40,6 +40,7 @@ static inline void convert_fp_to_vx(__vector128 *vxrs, freg_t *fprs)
 static inline void fpregs_store(_s390_fp_regs *fpregs, struct fpu *fpu)
 {
 	fpregs->pad = 0;
+	fpregs->fpc = fpu->fpc;
 	if (MACHINE_HAS_VX)
 		convert_vx_to_fp((freg_t *)&fpregs->fprs, fpu->vxrs);
 	else
@@ -49,6 +50,7 @@ static inline void fpregs_store(_s390_fp_regs *fpregs, struct fpu *fpu)
 
 static inline void fpregs_load(_s390_fp_regs *fpregs, struct fpu *fpu)
 {
+	fpu->fpc = fpregs->fpc;
 	if (MACHINE_HAS_VX)
 		convert_fp_to_vx(fpu->vxrs, (freg_t *)&fpregs->fprs);
 	else
diff --git a/arch/s390/include/asm/livepatch.h b/arch/s390/include/asm/livepatch.h
index 7aa7991..a52b6cc 100644
--- a/arch/s390/include/asm/livepatch.h
+++ b/arch/s390/include/asm/livepatch.h
@@ -37,7 +37,7 @@ static inline void klp_arch_set_pc(struct pt_regs *regs, unsigned long ip)
 	regs->psw.addr = ip;
 }
 #else
-#error Live patching support is disabled; check CONFIG_LIVEPATCH
+#error Include linux/livepatch.h, not asm/livepatch.h
 #endif
 
 #endif
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index 66c9441..4af6037 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -271,7 +271,7 @@ static int restore_sigregs_ext32(struct pt_regs *regs,
 
 	/* Restore high gprs from signal stack */
 	if (__copy_from_user(&gprs_high, &sregs_ext->gprs_high,
-			     sizeof(&sregs_ext->gprs_high)))
+			     sizeof(sregs_ext->gprs_high)))
 		return -EFAULT;
 	for (i = 0; i < NUM_GPRS; i++)
 		*(__u32 *)&regs->gprs[i] = gprs_high[i];
diff --git a/arch/s390/kernel/perf_event.c b/arch/s390/kernel/perf_event.c
index cfcba2d..0943b11 100644
--- a/arch/s390/kernel/perf_event.c
+++ b/arch/s390/kernel/perf_event.c
@@ -260,12 +260,13 @@ static unsigned long __store_trace(struct perf_callchain_entry *entry,
 void perf_callchain_kernel(struct perf_callchain_entry *entry,
 			   struct pt_regs *regs)
 {
-	unsigned long head;
+	unsigned long head, frame_size;
 	struct stack_frame *head_sf;
 
 	if (user_mode(regs))
 		return;
 
+	frame_size = STACK_FRAME_OVERHEAD + sizeof(struct pt_regs);
 	head = regs->gprs[15];
 	head_sf = (struct stack_frame *) head;
 
@@ -273,8 +274,9 @@ void perf_callchain_kernel(struct perf_callchain_entry *entry,
 		return;
 
 	head = head_sf->back_chain;
-	head = __store_trace(entry, head, S390_lowcore.async_stack - ASYNC_SIZE,
-			     S390_lowcore.async_stack);
+	head = __store_trace(entry, head,
+			     S390_lowcore.async_stack + frame_size - ASYNC_SIZE,
+			     S390_lowcore.async_stack + frame_size);
 
 	__store_trace(entry, head, S390_lowcore.thread_info,
 		      S390_lowcore.thread_info + THREAD_SIZE);
diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c
index 5acba3c..8f64ebd 100644
--- a/arch/s390/kernel/stacktrace.c
+++ b/arch/s390/kernel/stacktrace.c
@@ -59,26 +59,32 @@ static unsigned long save_context_stack(struct stack_trace *trace,
 	}
 }
 
-void save_stack_trace(struct stack_trace *trace)
+static void __save_stack_trace(struct stack_trace *trace, unsigned long sp)
 {
-	register unsigned long sp asm ("15");
-	unsigned long orig_sp, new_sp;
+	unsigned long new_sp, frame_size;
 
-	orig_sp = sp;
-	new_sp = save_context_stack(trace, orig_sp,
-				    S390_lowcore.panic_stack - PAGE_SIZE,
-				    S390_lowcore.panic_stack, 1);
-	if (new_sp != orig_sp)
-		return;
+	frame_size = STACK_FRAME_OVERHEAD + sizeof(struct pt_regs);
+	new_sp = save_context_stack(trace, sp,
+			S390_lowcore.panic_stack + frame_size - PAGE_SIZE,
+			S390_lowcore.panic_stack + frame_size, 1);
 	new_sp = save_context_stack(trace, new_sp,
-				    S390_lowcore.async_stack - ASYNC_SIZE,
-				    S390_lowcore.async_stack, 1);
-	if (new_sp != orig_sp)
-		return;
+			S390_lowcore.async_stack + frame_size - ASYNC_SIZE,
+			S390_lowcore.async_stack + frame_size, 1);
 	save_context_stack(trace, new_sp,
 			   S390_lowcore.thread_info,
 			   S390_lowcore.thread_info + THREAD_SIZE, 1);
 }
+
+void save_stack_trace(struct stack_trace *trace)
+{
+	register unsigned long r15 asm ("15");
+	unsigned long sp;
+
+	sp = r15;
+	__save_stack_trace(trace, sp);
+	if (trace->nr_entries < trace->max_entries)
+		trace->entries[trace->nr_entries++] = ULONG_MAX;
+}
 EXPORT_SYMBOL_GPL(save_stack_trace);
 
 void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
@@ -86,6 +92,10 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 	unsigned long sp, low, high;
 
 	sp = tsk->thread.ksp;
+	if (tsk == current) {
+		/* Get current stack pointer. */
+		asm volatile("la %0,0(15)" : "=a" (sp));
+	}
 	low = (unsigned long) task_stack_page(tsk);
 	high = (unsigned long) task_pt_regs(tsk);
 	save_context_stack(trace, sp, low, high, 0);
@@ -93,3 +103,14 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 		trace->entries[trace->nr_entries++] = ULONG_MAX;
 }
 EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
+
+void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace)
+{
+	unsigned long sp;
+
+	sp = kernel_stack_pointer(regs);
+	__save_stack_trace(trace, sp);
+	if (trace->nr_entries < trace->max_entries)
+		trace->entries[trace->nr_entries++] = ULONG_MAX;
+}
+EXPORT_SYMBOL_GPL(save_stack_trace_regs);
diff --git a/arch/s390/kernel/trace.c b/arch/s390/kernel/trace.c
index 21a5df9..dde7654 100644
--- a/arch/s390/kernel/trace.c
+++ b/arch/s390/kernel/trace.c
@@ -18,6 +18,9 @@ void trace_s390_diagnose_norecursion(int diag_nr)
 	unsigned long flags;
 	unsigned int *depth;
 
+	/* Avoid lockdep recursion. */
+	if (IS_ENABLED(CONFIG_LOCKDEP))
+		return;
 	local_irq_save(flags);
 	depth = this_cpu_ptr(&diagnose_trace_depth);
 	if (*depth == 0) {
diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c
index fec59c0..792f9c6 100644
--- a/arch/s390/mm/maccess.c
+++ b/arch/s390/mm/maccess.c
@@ -93,15 +93,19 @@ static int __memcpy_real(void *dest, void *src, size_t count)
  */
 int memcpy_real(void *dest, void *src, size_t count)
 {
+	int irqs_disabled, rc;
 	unsigned long flags;
-	int rc;
 
 	if (!count)
 		return 0;
-	local_irq_save(flags);
-	__arch_local_irq_stnsm(0xfbUL);
+	flags = __arch_local_irq_stnsm(0xf8UL);
+	irqs_disabled = arch_irqs_disabled_flags(flags);
+	if (!irqs_disabled)
+		trace_hardirqs_off();
 	rc = __memcpy_real(dest, src, count);
-	local_irq_restore(flags);
+	if (!irqs_disabled)
+		trace_hardirqs_on();
+	__arch_local_irq_ssm(flags);
 	return rc;
 }
 
diff --git a/arch/s390/oprofile/backtrace.c b/arch/s390/oprofile/backtrace.c
index fe0bfe3..1884e17 100644
--- a/arch/s390/oprofile/backtrace.c
+++ b/arch/s390/oprofile/backtrace.c
@@ -54,12 +54,13 @@ __show_trace(unsigned int *depth, unsigned long sp,
 
 void s390_backtrace(struct pt_regs * const regs, unsigned int depth)
 {
-	unsigned long head;
+	unsigned long head, frame_size;
 	struct stack_frame* head_sf;
 
 	if (user_mode(regs))
 		return;
 
+	frame_size = STACK_FRAME_OVERHEAD + sizeof(struct pt_regs);
 	head = regs->gprs[15];
 	head_sf = (struct stack_frame*)head;
 
@@ -68,8 +69,9 @@ void s390_backtrace(struct pt_regs * const regs, unsigned int depth)
 
 	head = head_sf->back_chain;
 
-	head = __show_trace(&depth, head, S390_lowcore.async_stack - ASYNC_SIZE,
-			    S390_lowcore.async_stack);
+	head = __show_trace(&depth, head,
+			    S390_lowcore.async_stack + frame_size - ASYNC_SIZE,
+			    S390_lowcore.async_stack + frame_size);
 
 	__show_trace(&depth, head, S390_lowcore.thread_info,
 		     S390_lowcore.thread_info + THREAD_SIZE);
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index c690c8e..b489e97 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -264,7 +264,7 @@ static unsigned long mmap_rnd(void)
 	unsigned long rnd = 0UL;
 
 	if (current->flags & PF_RANDOMIZE) {
-		unsigned long val = get_random_int();
+		unsigned long val = get_random_long();
 		if (test_thread_flag(TIF_32BIT))
 			rnd = (val % (1UL << (23UL-PAGE_SHIFT)));
 		else
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9af2e63..c46662f 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -475,6 +475,7 @@ config X86_UV
 	depends on X86_64
 	depends on X86_EXTENDED_PLATFORM
 	depends on NUMA
+	depends on EFI
 	depends on X86_X2APIC
 	depends on PCI
 	---help---
@@ -777,8 +778,8 @@ config HPET_TIMER
 	  HPET is the next generation timer replacing legacy 8254s.
 	  The HPET provides a stable time base on SMP
 	  systems, unlike the TSC, but it is more expensive to access,
-	  as it is off-chip.  You can find the HPET spec at
-	  <http://www.intel.com/hardwaredesign/hpetspec_1.pdf>.
+	  as it is off-chip.  The interface used is documented
+	  in the HPET spec, revision 1.
 
 	  You can safely choose Y here.  However, HPET will only be
 	  activated if the platform and the BIOS support this feature.
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 77d8c51..bb3e376 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -294,6 +294,7 @@ sysenter_past_esp:
 	pushl	$__USER_DS		/* pt_regs->ss */
 	pushl	%ebp			/* pt_regs->sp (stashed in bp) */
 	pushfl				/* pt_regs->flags (except IF = 0) */
+	ASM_CLAC			/* Clear AC after saving FLAGS */
 	orl	$X86_EFLAGS_IF, (%esp)	/* Fix IF */
 	pushl	$__USER_CS		/* pt_regs->cs */
 	pushl	$0			/* pt_regs->ip = 0 (placeholder) */
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
index ff1c6d6..3c990ee 100644
--- a/arch/x86/entry/entry_64_compat.S
+++ b/arch/x86/entry/entry_64_compat.S
@@ -261,6 +261,7 @@ ENTRY(entry_INT80_compat)
 	 * Interrupts are off on entry.
 	 */
 	PARAVIRT_ADJUST_EXCEPTION_FRAME
+	ASM_CLAC			/* Do this early to minimize exposure */
 	SWAPGS
 
 	/*
diff --git a/arch/x86/include/asm/livepatch.h b/arch/x86/include/asm/livepatch.h
index 19c099a..e795f52 100644
--- a/arch/x86/include/asm/livepatch.h
+++ b/arch/x86/include/asm/livepatch.h
@@ -41,7 +41,7 @@ static inline void klp_arch_set_pc(struct pt_regs *regs, unsigned long ip)
 	regs->ip = ip;
 }
 #else
-#error Live patching support is disabled; check CONFIG_LIVEPATCH
+#error Include linux/livepatch.h, not asm/livepatch.h
 #endif
 
 #endif /* _ASM_X86_LIVEPATCH_H */
diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
index 46873fb..d08eacd2 100644
--- a/arch/x86/include/asm/pci_x86.h
+++ b/arch/x86/include/asm/pci_x86.h
@@ -93,6 +93,8 @@ extern raw_spinlock_t pci_config_lock;
 extern int (*pcibios_enable_irq)(struct pci_dev *dev);
 extern void (*pcibios_disable_irq)(struct pci_dev *dev);
 
+extern bool mp_should_keep_irq(struct device *dev);
+
 struct pci_raw_ops {
 	int (*read)(unsigned int domain, unsigned int bus, unsigned int devfn,
 						int reg, int len, u32 *val);
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 2d5a50c..20c11d1 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -766,7 +766,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
  * Return saved PC of a blocked thread.
  * What is this good for? it will be always the scheduler or ret_from_fork.
  */
-#define thread_saved_pc(t)	(*(unsigned long *)((t)->thread.sp - 8))
+#define thread_saved_pc(t)	READ_ONCE_NOCHECK(*(unsigned long *)((t)->thread.sp - 8))
 
 #define task_pt_regs(tsk)	((struct pt_regs *)(tsk)->thread.sp0 - 1)
 extern unsigned long KSTK_ESP(struct task_struct *task);
diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
index f5dcb52..3fe0eac 100644
--- a/arch/x86/include/asm/uaccess_32.h
+++ b/arch/x86/include/asm/uaccess_32.h
@@ -48,20 +48,28 @@ __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n)
 
 		switch (n) {
 		case 1:
+			__uaccess_begin();
 			__put_user_size(*(u8 *)from, (u8 __user *)to,
 					1, ret, 1);
+			__uaccess_end();
 			return ret;
 		case 2:
+			__uaccess_begin();
 			__put_user_size(*(u16 *)from, (u16 __user *)to,
 					2, ret, 2);
+			__uaccess_end();
 			return ret;
 		case 4:
+			__uaccess_begin();
 			__put_user_size(*(u32 *)from, (u32 __user *)to,
 					4, ret, 4);
+			__uaccess_end();
 			return ret;
 		case 8:
+			__uaccess_begin();
 			__put_user_size(*(u64 *)from, (u64 __user *)to,
 					8, ret, 8);
+			__uaccess_end();
 			return ret;
 		}
 	}
@@ -103,13 +111,19 @@ __copy_from_user_inatomic(void *to, const void __user *from, unsigned long n)
 
 		switch (n) {
 		case 1:
+			__uaccess_begin();
 			__get_user_size(*(u8 *)to, from, 1, ret, 1);
+			__uaccess_end();
 			return ret;
 		case 2:
+			__uaccess_begin();
 			__get_user_size(*(u16 *)to, from, 2, ret, 2);
+			__uaccess_end();
 			return ret;
 		case 4:
+			__uaccess_begin();
 			__get_user_size(*(u32 *)to, from, 4, ret, 4);
+			__uaccess_end();
 			return ret;
 		}
 	}
@@ -148,13 +162,19 @@ __copy_from_user(void *to, const void __user *from, unsigned long n)
 
 		switch (n) {
 		case 1:
+			__uaccess_begin();
 			__get_user_size(*(u8 *)to, from, 1, ret, 1);
+			__uaccess_end();
 			return ret;
 		case 2:
+			__uaccess_begin();
 			__get_user_size(*(u16 *)to, from, 2, ret, 2);
+			__uaccess_end();
 			return ret;
 		case 4:
+			__uaccess_begin();
 			__get_user_size(*(u32 *)to, from, 4, ret, 4);
+			__uaccess_end();
 			return ret;
 		}
 	}
@@ -170,13 +190,19 @@ static __always_inline unsigned long __copy_from_user_nocache(void *to,
 
 		switch (n) {
 		case 1:
+			__uaccess_begin();
 			__get_user_size(*(u8 *)to, from, 1, ret, 1);
+			__uaccess_end();
 			return ret;
 		case 2:
+			__uaccess_begin();
 			__get_user_size(*(u16 *)to, from, 2, ret, 2);
+			__uaccess_end();
 			return ret;
 		case 4:
+			__uaccess_begin();
 			__get_user_size(*(u32 *)to, from, 4, ret, 4);
+			__uaccess_end();
 			return ret;
 		}
 	}
diff --git a/arch/x86/include/asm/xen/pci.h b/arch/x86/include/asm/xen/pci.h
index 968d57d..f320ee3 100644
--- a/arch/x86/include/asm/xen/pci.h
+++ b/arch/x86/include/asm/xen/pci.h
@@ -57,7 +57,7 @@ static inline int xen_pci_frontend_enable_msi(struct pci_dev *dev,
 {
 	if (xen_pci_frontend && xen_pci_frontend->enable_msi)
 		return xen_pci_frontend->enable_msi(dev, vectors);
-	return -ENODEV;
+	return -ENOSYS;
 }
 static inline void xen_pci_frontend_disable_msi(struct pci_dev *dev)
 {
@@ -69,7 +69,7 @@ static inline int xen_pci_frontend_enable_msix(struct pci_dev *dev,
 {
 	if (xen_pci_frontend && xen_pci_frontend->enable_msix)
 		return xen_pci_frontend->enable_msix(dev, vectors, nvec);
-	return -ENODEV;
+	return -ENOSYS;
 }
 static inline void xen_pci_frontend_disable_msix(struct pci_dev *dev)
 {
diff --git a/arch/x86/kernel/cpu/perf_event_amd_uncore.c b/arch/x86/kernel/cpu/perf_event_amd_uncore.c
index 4974274..8836fc9 100644
--- a/arch/x86/kernel/cpu/perf_event_amd_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_amd_uncore.c
@@ -323,6 +323,8 @@ static int amd_uncore_cpu_up_prepare(unsigned int cpu)
 	return 0;
 
 fail:
+	if (amd_uncore_nb)
+		*per_cpu_ptr(amd_uncore_nb, cpu) = NULL;
 	kfree(uncore_nb);
 	return -ENOMEM;
 }
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 1505587..b9b09fe 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -650,10 +650,10 @@ static __always_inline int __linearize(struct x86_emulate_ctxt *ctxt,
 	u16 sel;
 
 	la = seg_base(ctxt, addr.seg) + addr.ea;
-	*linear = la;
 	*max_size = 0;
 	switch (mode) {
 	case X86EMUL_MODE_PROT64:
+		*linear = la;
 		if (is_noncanonical_address(la))
 			goto bad;
 
@@ -662,6 +662,7 @@ static __always_inline int __linearize(struct x86_emulate_ctxt *ctxt,
 			goto bad;
 		break;
 	default:
+		*linear = la = (u32)la;
 		usable = ctxt->ops->get_segment(ctxt, &sel, &desc, NULL,
 						addr.seg);
 		if (!usable)
@@ -689,7 +690,6 @@ static __always_inline int __linearize(struct x86_emulate_ctxt *ctxt,
 			if (size > *max_size)
 				goto bad;
 		}
-		la &= (u32)-1;
 		break;
 	}
 	if (insn_aligned(ctxt, size) && ((la & (size - 1)) != 0))
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 6c9fed9..2ce4f05 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -249,7 +249,7 @@ static int FNAME(update_accessed_dirty_bits)(struct kvm_vcpu *vcpu,
 			return ret;
 
 		kvm_vcpu_mark_page_dirty(vcpu, table_gfn);
-		walker->ptes[level] = pte;
+		walker->ptes[level - 1] = pte;
 	}
 	return 0;
 }
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 4244c2b..f4891f2 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2752,6 +2752,7 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 	}
 
 	kvm_make_request(KVM_REQ_STEAL_UPDATE, vcpu);
+	vcpu->arch.switch_db_regs |= KVM_DEBUGREG_RELOAD;
 }
 
 void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
index 982ce34..27f89c7 100644
--- a/arch/x86/lib/copy_user_64.S
+++ b/arch/x86/lib/copy_user_64.S
@@ -232,17 +232,31 @@ ENDPROC(copy_user_enhanced_fast_string)
 
 /*
  * copy_user_nocache - Uncached memory copy with exception handling
- * This will force destination/source out of cache for more performance.
+ * This will force destination out of cache for more performance.
+ *
+ * Note: Cached memory copy is used when destination or size is not
+ * naturally aligned. That is:
+ *  - Require 8-byte alignment when size is 8 bytes or larger.
+ *  - Require 4-byte alignment when size is 4 bytes.
  */
 ENTRY(__copy_user_nocache)
 	ASM_STAC
+
+	/* If size is less than 8 bytes, go to 4-byte copy */
 	cmpl $8,%edx
-	jb 20f		/* less then 8 bytes, go to byte copy loop */
+	jb .L_4b_nocache_copy_entry
+
+	/* If destination is not 8-byte aligned, "cache" copy to align it */
 	ALIGN_DESTINATION
+
+	/* Set 4x8-byte copy count and remainder */
 	movl %edx,%ecx
 	andl $63,%edx
 	shrl $6,%ecx
-	jz 17f
+	jz .L_8b_nocache_copy_entry	/* jump if count is 0 */
+
+	/* Perform 4x8-byte nocache loop-copy */
+.L_4x8b_nocache_copy_loop:
 1:	movq (%rsi),%r8
 2:	movq 1*8(%rsi),%r9
 3:	movq 2*8(%rsi),%r10
@@ -262,60 +276,106 @@ ENTRY(__copy_user_nocache)
 	leaq 64(%rsi),%rsi
 	leaq 64(%rdi),%rdi
 	decl %ecx
-	jnz 1b
-17:	movl %edx,%ecx
+	jnz .L_4x8b_nocache_copy_loop
+
+	/* Set 8-byte copy count and remainder */
+.L_8b_nocache_copy_entry:
+	movl %edx,%ecx
 	andl $7,%edx
 	shrl $3,%ecx
-	jz 20f
-18:	movq (%rsi),%r8
-19:	movnti %r8,(%rdi)
+	jz .L_4b_nocache_copy_entry	/* jump if count is 0 */
+
+	/* Perform 8-byte nocache loop-copy */
+.L_8b_nocache_copy_loop:
+20:	movq (%rsi),%r8
+21:	movnti %r8,(%rdi)
 	leaq 8(%rsi),%rsi
 	leaq 8(%rdi),%rdi
 	decl %ecx
-	jnz 18b
-20:	andl %edx,%edx
-	jz 23f
+	jnz .L_8b_nocache_copy_loop
+
+	/* If no byte left, we're done */
+.L_4b_nocache_copy_entry:
+	andl %edx,%edx
+	jz .L_finish_copy
+
+	/* If destination is not 4-byte aligned, go to byte copy: */
+	movl %edi,%ecx
+	andl $3,%ecx
+	jnz .L_1b_cache_copy_entry
+
+	/* Set 4-byte copy count (1 or 0) and remainder */
 	movl %edx,%ecx
-21:	movb (%rsi),%al
-22:	movb %al,(%rdi)
+	andl $3,%edx
+	shrl $2,%ecx
+	jz .L_1b_cache_copy_entry	/* jump if count is 0 */
+
+	/* Perform 4-byte nocache copy: */
+30:	movl (%rsi),%r8d
+31:	movnti %r8d,(%rdi)
+	leaq 4(%rsi),%rsi
+	leaq 4(%rdi),%rdi
+
+	/* If no bytes left, we're done: */
+	andl %edx,%edx
+	jz .L_finish_copy
+
+	/* Perform byte "cache" loop-copy for the remainder */
+.L_1b_cache_copy_entry:
+	movl %edx,%ecx
+.L_1b_cache_copy_loop:
+40:	movb (%rsi),%al
+41:	movb %al,(%rdi)
 	incq %rsi
 	incq %rdi
 	decl %ecx
-	jnz 21b
-23:	xorl %eax,%eax
+	jnz .L_1b_cache_copy_loop
+
+	/* Finished copying; fence the prior stores */
+.L_finish_copy:
+	xorl %eax,%eax
 	ASM_CLAC
 	sfence
 	ret
 
 	.section .fixup,"ax"
-30:	shll $6,%ecx
+.L_fixup_4x8b_copy:
+	shll $6,%ecx
 	addl %ecx,%edx
-	jmp 60f
-40:	lea (%rdx,%rcx,8),%rdx
-	jmp 60f
-50:	movl %ecx,%edx
-60:	sfence
+	jmp .L_fixup_handle_tail
+.L_fixup_8b_copy:
+	lea (%rdx,%rcx,8),%rdx
+	jmp .L_fixup_handle_tail
+.L_fixup_4b_copy:
+	lea (%rdx,%rcx,4),%rdx
+	jmp .L_fixup_handle_tail
+.L_fixup_1b_copy:
+	movl %ecx,%edx
+.L_fixup_handle_tail:
+	sfence
 	jmp copy_user_handle_tail
 	.previous
 
-	_ASM_EXTABLE(1b,30b)
-	_ASM_EXTABLE(2b,30b)
-	_ASM_EXTABLE(3b,30b)
-	_ASM_EXTABLE(4b,30b)
-	_ASM_EXTABLE(5b,30b)
-	_ASM_EXTABLE(6b,30b)
-	_ASM_EXTABLE(7b,30b)
-	_ASM_EXTABLE(8b,30b)
-	_ASM_EXTABLE(9b,30b)
-	_ASM_EXTABLE(10b,30b)
-	_ASM_EXTABLE(11b,30b)
-	_ASM_EXTABLE(12b,30b)
-	_ASM_EXTABLE(13b,30b)
-	_ASM_EXTABLE(14b,30b)
-	_ASM_EXTABLE(15b,30b)
-	_ASM_EXTABLE(16b,30b)
-	_ASM_EXTABLE(18b,40b)
-	_ASM_EXTABLE(19b,40b)
-	_ASM_EXTABLE(21b,50b)
-	_ASM_EXTABLE(22b,50b)
+	_ASM_EXTABLE(1b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(2b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(3b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(4b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(5b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(6b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(7b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(8b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(9b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(10b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(11b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(12b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(13b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(14b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(15b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(16b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(20b,.L_fixup_8b_copy)
+	_ASM_EXTABLE(21b,.L_fixup_8b_copy)
+	_ASM_EXTABLE(30b,.L_fixup_4b_copy)
+	_ASM_EXTABLE(31b,.L_fixup_4b_copy)
+	_ASM_EXTABLE(40b,.L_fixup_1b_copy)
+	_ASM_EXTABLE(41b,.L_fixup_1b_copy)
 ENDPROC(__copy_user_nocache)
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index eef44d9..e830c71 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -287,6 +287,9 @@ static noinline int vmalloc_fault(unsigned long address)
 	if (!pmd_k)
 		return -1;
 
+	if (pmd_huge(*pmd_k))
+		return 0;
+
 	pte_k = pte_offset_kernel(pmd_k, address);
 	if (!pte_present(*pte_k))
 		return -1;
@@ -360,8 +363,6 @@ void vmalloc_sync_all(void)
  * 64-bit:
  *
  *   Handle a fault on the vmalloc area
- *
- * This assumes no large pages in there.
  */
 static noinline int vmalloc_fault(unsigned long address)
 {
@@ -403,17 +404,23 @@ static noinline int vmalloc_fault(unsigned long address)
 	if (pud_none(*pud_ref))
 		return -1;
 
-	if (pud_none(*pud) || pud_page_vaddr(*pud) != pud_page_vaddr(*pud_ref))
+	if (pud_none(*pud) || pud_pfn(*pud) != pud_pfn(*pud_ref))
 		BUG();
 
+	if (pud_huge(*pud))
+		return 0;
+
 	pmd = pmd_offset(pud, address);
 	pmd_ref = pmd_offset(pud_ref, address);
 	if (pmd_none(*pmd_ref))
 		return -1;
 
-	if (pmd_none(*pmd) || pmd_page(*pmd) != pmd_page(*pmd_ref))
+	if (pmd_none(*pmd) || pmd_pfn(*pmd) != pmd_pfn(*pmd_ref))
 		BUG();
 
+	if (pmd_huge(*pmd))
+		return 0;
+
 	pte_ref = pte_offset_kernel(pmd_ref, address);
 	if (!pte_present(*pte_ref))
 		return -1;
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index 6d5eb59..d8a798d 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -102,7 +102,6 @@ static noinline int gup_pte_range(pmd_t pmd, unsigned long addr,
 			return 0;
 		}
 
-		page = pte_page(pte);
 		if (pte_devmap(pte)) {
 			pgmap = get_dev_pagemap(pte_pfn(pte), pgmap);
 			if (unlikely(!pgmap)) {
@@ -115,6 +114,7 @@ static noinline int gup_pte_range(pmd_t pmd, unsigned long addr,
 			return 0;
 		}
 		VM_BUG_ON(!pfn_valid(pte_pfn(pte)));
+		page = pte_page(pte);
 		get_page(page);
 		put_dev_pagemap(pgmap);
 		SetPageReferenced(page);
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index 96bd1e2..72bb52f 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -71,12 +71,12 @@ unsigned long arch_mmap_rnd(void)
 
 	if (mmap_is_ia32())
 #ifdef CONFIG_COMPAT
-		rnd = (unsigned long)get_random_int() & ((1 << mmap_rnd_compat_bits) - 1);
+		rnd = get_random_long() & ((1UL << mmap_rnd_compat_bits) - 1);
 #else
-		rnd = (unsigned long)get_random_int() & ((1 << mmap_rnd_bits) - 1);
+		rnd = get_random_long() & ((1UL << mmap_rnd_bits) - 1);
 #endif
 	else
-		rnd = (unsigned long)get_random_int() & ((1 << mmap_rnd_bits) - 1);
+		rnd = get_random_long() & ((1UL << mmap_rnd_bits) - 1);
 
 	return rnd << PAGE_SHIFT;
 }
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index b2fd67d..ef05755 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -123,7 +123,7 @@ static int get_reg_offset(struct insn *insn, struct pt_regs *regs,
 		break;
 	}
 
-	if (regno > nr_registers) {
+	if (regno >= nr_registers) {
 		WARN_ONCE(1, "decoded an instruction with an invalid register");
 		return -EINVAL;
 	}
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index c3b3f65..d04f809 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -469,7 +469,7 @@ static void __init numa_clear_kernel_node_hotplug(void)
 {
 	int i, nid;
 	nodemask_t numa_kernel_nodes = NODE_MASK_NONE;
-	unsigned long start, end;
+	phys_addr_t start, end;
 	struct memblock_region *r;
 
 	/*
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 2440814..9cf96d8 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -419,24 +419,30 @@ pmd_t *lookup_pmd_address(unsigned long address)
 phys_addr_t slow_virt_to_phys(void *__virt_addr)
 {
 	unsigned long virt_addr = (unsigned long)__virt_addr;
-	unsigned long phys_addr, offset;
+	phys_addr_t phys_addr;
+	unsigned long offset;
 	enum pg_level level;
 	pte_t *pte;
 
 	pte = lookup_address(virt_addr, &level);
 	BUG_ON(!pte);
 
+	/*
+	 * pXX_pfn() returns unsigned long, which must be cast to phys_addr_t
+	 * before being left-shifted PAGE_SHIFT bits -- this trick is to
+	 * make 32-PAE kernel work correctly.
+	 */
 	switch (level) {
 	case PG_LEVEL_1G:
-		phys_addr = pud_pfn(*(pud_t *)pte) << PAGE_SHIFT;
+		phys_addr = (phys_addr_t)pud_pfn(*(pud_t *)pte) << PAGE_SHIFT;
 		offset = virt_addr & ~PUD_PAGE_MASK;
 		break;
 	case PG_LEVEL_2M:
-		phys_addr = pmd_pfn(*(pmd_t *)pte) << PAGE_SHIFT;
+		phys_addr = (phys_addr_t)pmd_pfn(*(pmd_t *)pte) << PAGE_SHIFT;
 		offset = virt_addr & ~PMD_PAGE_MASK;
 		break;
 	default:
-		phys_addr = pte_pfn(*pte) << PAGE_SHIFT;
+		phys_addr = (phys_addr_t)pte_pfn(*pte) << PAGE_SHIFT;
 		offset = virt_addr & ~PAGE_MASK;
 	}
 
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 2879efc..d34b511 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -711,28 +711,22 @@ int pcibios_add_device(struct pci_dev *dev)
 	return 0;
 }
 
-int pcibios_alloc_irq(struct pci_dev *dev)
+int pcibios_enable_device(struct pci_dev *dev, int mask)
 {
-	/*
-	 * If the PCI device was already claimed by core code and has
-	 * MSI enabled, probing of the pcibios IRQ will overwrite
-	 * dev->irq.  So bail out if MSI is already enabled.
-	 */
-	if (pci_dev_msi_enabled(dev))
-		return -EBUSY;
+	int err;
 
-	return pcibios_enable_irq(dev);
-}
+	if ((err = pci_enable_resources(dev, mask)) < 0)
+		return err;
 
-void pcibios_free_irq(struct pci_dev *dev)
-{
-	if (pcibios_disable_irq)
-		pcibios_disable_irq(dev);
+	if (!pci_dev_msi_enabled(dev))
+		return pcibios_enable_irq(dev);
+	return 0;
 }
 
-int pcibios_enable_device(struct pci_dev *dev, int mask)
+void pcibios_disable_device (struct pci_dev *dev)
 {
-	return pci_enable_resources(dev, mask);
+	if (!pci_dev_msi_enabled(dev) && pcibios_disable_irq)
+		pcibios_disable_irq(dev);
 }
 
 int pci_ext_cfg_avail(void)
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
index 0d24e7c..8b93e63 100644
--- a/arch/x86/pci/intel_mid_pci.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -215,7 +215,7 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev)
 	int polarity;
 	int ret;
 
-	if (pci_has_managed_irq(dev))
+	if (dev->irq_managed && dev->irq > 0)
 		return 0;
 
 	switch (intel_mid_identify_cpu()) {
@@ -256,13 +256,10 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev)
 
 static void intel_mid_pci_irq_disable(struct pci_dev *dev)
 {
-	if (pci_has_managed_irq(dev)) {
+	if (!mp_should_keep_irq(&dev->dev) && dev->irq_managed &&
+	    dev->irq > 0) {
 		mp_unmap_irq(dev->irq);
 		dev->irq_managed = 0;
-		/*
-		 * Don't reset dev->irq here, otherwise
-		 * intel_mid_pci_irq_enable() will fail on next call.
-		 */
 	}
 }
 
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 32e7034..9bd1154 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -1202,7 +1202,7 @@ static int pirq_enable_irq(struct pci_dev *dev)
 			struct pci_dev *temp_dev;
 			int irq;
 
-			if (pci_has_managed_irq(dev))
+			if (dev->irq_managed && dev->irq > 0)
 				return 0;
 
 			irq = IO_APIC_get_PCI_irq_vector(dev->bus->number,
@@ -1230,7 +1230,8 @@ static int pirq_enable_irq(struct pci_dev *dev)
 			}
 			dev = temp_dev;
 			if (irq >= 0) {
-				pci_set_managed_irq(dev, irq);
+				dev->irq_managed = 1;
+				dev->irq = irq;
 				dev_info(&dev->dev, "PCI->APIC IRQ transform: "
 					 "INT %c -> IRQ %d\n", 'A' + pin - 1, irq);
 				return 0;
@@ -1256,10 +1257,24 @@ static int pirq_enable_irq(struct pci_dev *dev)
 	return 0;
 }
 
+bool mp_should_keep_irq(struct device *dev)
+{
+	if (dev->power.is_prepared)
+		return true;
+#ifdef CONFIG_PM
+	if (dev->power.runtime_status == RPM_SUSPENDING)
+		return true;
+#endif
+
+	return false;
+}
+
 static void pirq_disable_irq(struct pci_dev *dev)
 {
-	if (io_apic_assign_pci_irqs && pci_has_managed_irq(dev)) {
+	if (io_apic_assign_pci_irqs && !mp_should_keep_irq(&dev->dev) &&
+	    dev->irq_managed && dev->irq) {
 		mp_unmap_irq(dev->irq);
-		pci_reset_managed_irq(dev);
+		dev->irq = 0;
+		dev->irq_managed = 0;
 	}
 }
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index ff31ab4..beac4df 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -196,7 +196,10 @@ static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 	return 0;
 
 error:
-	dev_err(&dev->dev, "Xen PCI frontend has not registered MSI/MSI-X support!\n");
+	if (ret == -ENOSYS)
+		dev_err(&dev->dev, "Xen PCI frontend has not registered MSI/MSI-X support!\n");
+	else if (ret)
+		dev_err(&dev->dev, "Xen PCI frontend error: %d!\n", ret);
 free:
 	kfree(v);
 	return ret;
diff --git a/arch/x86/platform/intel-quark/imr.c b/arch/x86/platform/intel-quark/imr.c
index c61b6c3..bfadcd0 100644
--- a/arch/x86/platform/intel-quark/imr.c
+++ b/arch/x86/platform/intel-quark/imr.c
@@ -592,14 +592,14 @@ static void __init imr_fixup_memmap(struct imr_device *idev)
 	end = (unsigned long)__end_rodata - 1;
 
 	/*
-	 * Setup a locked IMR around the physical extent of the kernel
+	 * Setup an unlocked IMR around the physical extent of the kernel
 	 * from the beginning of the .text secton to the end of the
 	 * .rodata section as one physically contiguous block.
 	 *
 	 * We don't round up @size since it is already PAGE_SIZE aligned.
 	 * See vmlinux.lds.S for details.
 	 */
-	ret = imr_add_range(base, size, IMR_CPU, IMR_CPU, true);
+	ret = imr_add_range(base, size, IMR_CPU, IMR_CPU, false);
 	if (ret < 0) {
 		pr_err("unable to setup IMR for kernel: %zu KiB (%lx - %lx)\n",
 			size / 1024, start, end);
diff --git a/block/Kconfig b/block/Kconfig
index 161491d..0363cd7 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -88,6 +88,19 @@ config BLK_DEV_INTEGRITY
 	T10/SCSI Data Integrity Field or the T13/ATA External Path
 	Protection.  If in doubt, say N.
 
+config BLK_DEV_DAX
+	bool "Block device DAX support"
+	depends on FS_DAX
+	depends on BROKEN
+	help
+	  When DAX support is available (CONFIG_FS_DAX) raw block
+	  devices can also support direct userspace access to the
+	  storage capacity via MMAP(2) similar to a file on a
+	  DAX-enabled filesystem.  However, the DAX I/O-path disables
+	  some standard I/O-statistics, and the MMAP(2) path has some
+	  operational differences due to bypassing the page
+	  cache.  If in doubt, say N.
+
 config BLK_DEV_THROTTLING
 	bool "Block layer bio throttling support"
 	depends on BLK_CGROUP=y
diff --git a/block/bio.c b/block/bio.c
index dbabd48..cf75915 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -874,7 +874,7 @@ int submit_bio_wait(int rw, struct bio *bio)
 	bio->bi_private = &ret;
 	bio->bi_end_io = submit_bio_wait_endio;
 	submit_bio(rw, bio);
-	wait_for_completion(&ret.event);
+	wait_for_completion_io(&ret.event);
 
 	return ret.error;
 }
@@ -1090,9 +1090,12 @@ int bio_uncopy_user(struct bio *bio)
 	if (!bio_flagged(bio, BIO_NULL_MAPPED)) {
 		/*
 		 * if we're in a workqueue, the request is orphaned, so
-		 * don't copy into a random user address space, just free.
+		 * don't copy into a random user address space, just free
+		 * and return -EINTR so user space doesn't expect any data.
 		 */
-		if (current->mm && bio_data_dir(bio) == READ)
+		if (!current->mm)
+			ret = -EINTR;
+		else if (bio_data_dir(bio) == READ)
 			ret = bio_copy_to_iter(bio, bmd->iter);
 		if (bmd->is_our_pages)
 			bio_free_pages(bio);
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 5a37188..66e6f1a 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -788,6 +788,7 @@ int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol,
 {
 	struct gendisk *disk;
 	struct blkcg_gq *blkg;
+	struct module *owner;
 	unsigned int major, minor;
 	int key_len, part, ret;
 	char *body;
@@ -804,7 +805,9 @@ int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol,
 	if (!disk)
 		return -ENODEV;
 	if (part) {
+		owner = disk->fops->owner;
 		put_disk(disk);
+		module_put(owner);
 		return -ENODEV;
 	}
 
@@ -820,7 +823,9 @@ int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol,
 		ret = PTR_ERR(blkg);
 		rcu_read_unlock();
 		spin_unlock_irq(disk->queue->queue_lock);
+		owner = disk->fops->owner;
 		put_disk(disk);
+		module_put(owner);
 		/*
 		 * If queue was bypassing, we should retry.  Do so after a
 		 * short msleep().  It isn't strictly necessary but queue
@@ -851,9 +856,13 @@ EXPORT_SYMBOL_GPL(blkg_conf_prep);
 void blkg_conf_finish(struct blkg_conf_ctx *ctx)
 	__releases(ctx->disk->queue->queue_lock) __releases(rcu)
 {
+	struct module *owner;
+
 	spin_unlock_irq(ctx->disk->queue->queue_lock);
 	rcu_read_unlock();
+	owner = ctx->disk->fops->owner;
 	put_disk(ctx->disk);
+	module_put(owner);
 }
 EXPORT_SYMBOL_GPL(blkg_conf_finish);
 
diff --git a/block/blk-core.c b/block/blk-core.c
index ab51685..b83d297 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -2455,14 +2455,16 @@ struct request *blk_peek_request(struct request_queue *q)
 
 			rq = NULL;
 			break;
-		} else if (ret == BLKPREP_KILL) {
+		} else if (ret == BLKPREP_KILL || ret == BLKPREP_INVALID) {
+			int err = (ret == BLKPREP_INVALID) ? -EREMOTEIO : -EIO;
+
 			rq->cmd_flags |= REQ_QUIET;
 			/*
 			 * Mark this request as started so we don't trigger
 			 * any debug logic in the end I/O path.
 			 */
 			blk_start_request(rq);
-			__blk_end_request_all(rq, -EIO);
+			__blk_end_request_all(rq, err);
 		} else {
 			printk(KERN_ERR "%s: bad return=%d\n", __func__, ret);
 			break;
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 4c0622f..56c0a72 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -599,8 +599,10 @@ static void blk_mq_check_expired(struct blk_mq_hw_ctx *hctx,
 		 * If a request wasn't started before the queue was
 		 * marked dying, kill it here or it'll go unnoticed.
 		 */
-		if (unlikely(blk_queue_dying(rq->q)))
-			blk_mq_complete_request(rq, -EIO);
+		if (unlikely(blk_queue_dying(rq->q))) {
+			rq->errors = -EIO;
+			blk_mq_end_request(rq, rq->errors);
+		}
 		return;
 	}
 
diff --git a/block/blk-settings.c b/block/blk-settings.c
index dd49735..c7bb666 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -91,8 +91,8 @@ void blk_set_default_limits(struct queue_limits *lim)
 	lim->seg_boundary_mask = BLK_SEG_BOUNDARY_MASK;
 	lim->virt_boundary_mask = 0;
 	lim->max_segment_size = BLK_MAX_SEGMENT_SIZE;
-	lim->max_sectors = lim->max_dev_sectors = lim->max_hw_sectors =
-		BLK_SAFE_MAX_SECTORS;
+	lim->max_sectors = lim->max_hw_sectors = BLK_SAFE_MAX_SECTORS;
+	lim->max_dev_sectors = 0;
 	lim->chunk_sectors = 0;
 	lim->max_write_same_sectors = 0;
 	lim->max_discard_sectors = 0;
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index e140cc4..dd93763 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -147,10 +147,9 @@ static ssize_t queue_discard_granularity_show(struct request_queue *q, char *pag
 
 static ssize_t queue_discard_max_hw_show(struct request_queue *q, char *page)
 {
-	unsigned long long val;
 
-	val = q->limits.max_hw_discard_sectors << 9;
-	return sprintf(page, "%llu\n", val);
+	return sprintf(page, "%llu\n",
+		(unsigned long long)q->limits.max_hw_discard_sectors << 9);
 }
 
 static ssize_t queue_discard_max_show(struct request_queue *q, char *page)
diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c
index a753df2..d0dd788 100644
--- a/block/deadline-iosched.c
+++ b/block/deadline-iosched.c
@@ -39,7 +39,6 @@ struct deadline_data {
 	 */
 	struct request *next_rq[2];
 	unsigned int batching;		/* number of sequential requests made */
-	sector_t last_sector;		/* head position */
 	unsigned int starved;		/* times reads have starved writes */
 
 	/*
@@ -210,8 +209,6 @@ deadline_move_request(struct deadline_data *dd, struct request *rq)
 	dd->next_rq[WRITE] = NULL;
 	dd->next_rq[data_dir] = deadline_latter_request(rq);
 
-	dd->last_sector = rq_end_sector(rq);
-
 	/*
 	 * take it off the sort and fifo list, move
 	 * to dispatch queue
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index 38c1aa8..28556fc 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -65,18 +65,10 @@ struct skcipher_async_req {
 	struct skcipher_async_rsgl first_sgl;
 	struct list_head list;
 	struct scatterlist *tsg;
-	char iv[];
+	atomic_t *inflight;
+	struct skcipher_request req;
 };
 
-#define GET_SREQ(areq, ctx) (struct skcipher_async_req *)((char *)areq + \
-	crypto_skcipher_reqsize(crypto_skcipher_reqtfm(&ctx->req)))
-
-#define GET_REQ_SIZE(ctx) \
-	crypto_skcipher_reqsize(crypto_skcipher_reqtfm(&ctx->req))
-
-#define GET_IV_SIZE(ctx) \
-	crypto_skcipher_ivsize(crypto_skcipher_reqtfm(&ctx->req))
-
 #define MAX_SGL_ENTS ((4096 - sizeof(struct skcipher_sg_list)) / \
 		      sizeof(struct scatterlist) - 1)
 
@@ -102,15 +94,12 @@ static void skcipher_free_async_sgls(struct skcipher_async_req *sreq)
 
 static void skcipher_async_cb(struct crypto_async_request *req, int err)
 {
-	struct sock *sk = req->data;
-	struct alg_sock *ask = alg_sk(sk);
-	struct skcipher_ctx *ctx = ask->private;
-	struct skcipher_async_req *sreq = GET_SREQ(req, ctx);
+	struct skcipher_async_req *sreq = req->data;
 	struct kiocb *iocb = sreq->iocb;
 
-	atomic_dec(&ctx->inflight);
+	atomic_dec(sreq->inflight);
 	skcipher_free_async_sgls(sreq);
-	kfree(req);
+	kzfree(sreq);
 	iocb->ki_complete(iocb, err, err);
 }
 
@@ -306,8 +295,11 @@ static int skcipher_sendmsg(struct socket *sock, struct msghdr *msg,
 {
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
+	struct sock *psk = ask->parent;
+	struct alg_sock *pask = alg_sk(psk);
 	struct skcipher_ctx *ctx = ask->private;
-	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(&ctx->req);
+	struct skcipher_tfm *skc = pask->private;
+	struct crypto_skcipher *tfm = skc->skcipher;
 	unsigned ivsize = crypto_skcipher_ivsize(tfm);
 	struct skcipher_sg_list *sgl;
 	struct af_alg_control con = {};
@@ -509,37 +501,43 @@ static int skcipher_recvmsg_async(struct socket *sock, struct msghdr *msg,
 {
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
+	struct sock *psk = ask->parent;
+	struct alg_sock *pask = alg_sk(psk);
 	struct skcipher_ctx *ctx = ask->private;
+	struct skcipher_tfm *skc = pask->private;
+	struct crypto_skcipher *tfm = skc->skcipher;
 	struct skcipher_sg_list *sgl;
 	struct scatterlist *sg;
 	struct skcipher_async_req *sreq;
 	struct skcipher_request *req;
 	struct skcipher_async_rsgl *last_rsgl = NULL;
-	unsigned int txbufs = 0, len = 0, tx_nents = skcipher_all_sg_nents(ctx);
-	unsigned int reqlen = sizeof(struct skcipher_async_req) +
-				GET_REQ_SIZE(ctx) + GET_IV_SIZE(ctx);
+	unsigned int txbufs = 0, len = 0, tx_nents;
+	unsigned int reqsize = crypto_skcipher_reqsize(tfm);
+	unsigned int ivsize = crypto_skcipher_ivsize(tfm);
 	int err = -ENOMEM;
 	bool mark = false;
+	char *iv;
 
-	lock_sock(sk);
-	req = kmalloc(reqlen, GFP_KERNEL);
-	if (unlikely(!req))
-		goto unlock;
+	sreq = kzalloc(sizeof(*sreq) + reqsize + ivsize, GFP_KERNEL);
+	if (unlikely(!sreq))
+		goto out;
 
-	sreq = GET_SREQ(req, ctx);
+	req = &sreq->req;
+	iv = (char *)(req + 1) + reqsize;
 	sreq->iocb = msg->msg_iocb;
-	memset(&sreq->first_sgl, '\0', sizeof(struct skcipher_async_rsgl));
 	INIT_LIST_HEAD(&sreq->list);
+	sreq->inflight = &ctx->inflight;
+
+	lock_sock(sk);
+	tx_nents = skcipher_all_sg_nents(ctx);
 	sreq->tsg = kcalloc(tx_nents, sizeof(*sg), GFP_KERNEL);
-	if (unlikely(!sreq->tsg)) {
-		kfree(req);
+	if (unlikely(!sreq->tsg))
 		goto unlock;
-	}
 	sg_init_table(sreq->tsg, tx_nents);
-	memcpy(sreq->iv, ctx->iv, GET_IV_SIZE(ctx));
-	skcipher_request_set_tfm(req, crypto_skcipher_reqtfm(&ctx->req));
-	skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				      skcipher_async_cb, sk);
+	memcpy(iv, ctx->iv, ivsize);
+	skcipher_request_set_tfm(req, tfm);
+	skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP,
+				      skcipher_async_cb, sreq);
 
 	while (iov_iter_count(&msg->msg_iter)) {
 		struct skcipher_async_rsgl *rsgl;
@@ -615,20 +613,22 @@ static int skcipher_recvmsg_async(struct socket *sock, struct msghdr *msg,
 		sg_mark_end(sreq->tsg + txbufs - 1);
 
 	skcipher_request_set_crypt(req, sreq->tsg, sreq->first_sgl.sgl.sg,
-				   len, sreq->iv);
+				   len, iv);
 	err = ctx->enc ? crypto_skcipher_encrypt(req) :
 			 crypto_skcipher_decrypt(req);
 	if (err == -EINPROGRESS) {
 		atomic_inc(&ctx->inflight);
 		err = -EIOCBQUEUED;
+		sreq = NULL;
 		goto unlock;
 	}
 free:
 	skcipher_free_async_sgls(sreq);
-	kfree(req);
 unlock:
 	skcipher_wmem_wakeup(sk);
 	release_sock(sk);
+	kzfree(sreq);
+out:
 	return err;
 }
 
@@ -637,9 +637,12 @@ static int skcipher_recvmsg_sync(struct socket *sock, struct msghdr *msg,
 {
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
+	struct sock *psk = ask->parent;
+	struct alg_sock *pask = alg_sk(psk);
 	struct skcipher_ctx *ctx = ask->private;
-	unsigned bs = crypto_skcipher_blocksize(crypto_skcipher_reqtfm(
-		&ctx->req));
+	struct skcipher_tfm *skc = pask->private;
+	struct crypto_skcipher *tfm = skc->skcipher;
+	unsigned bs = crypto_skcipher_blocksize(tfm);
 	struct skcipher_sg_list *sgl;
 	struct scatterlist *sg;
 	int err = -EAGAIN;
@@ -947,7 +950,8 @@ static int skcipher_accept_parent_nokey(void *private, struct sock *sk)
 	ask->private = ctx;
 
 	skcipher_request_set_tfm(&ctx->req, skcipher);
-	skcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+	skcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_SLEEP |
+						 CRYPTO_TFM_REQ_MAY_BACKLOG,
 				      af_alg_complete, &ctx->completion);
 
 	sk->sk_destruct = skcipher_sock_destruct;
diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
index 237f379..43fe85f 100644
--- a/crypto/crypto_user.c
+++ b/crypto/crypto_user.c
@@ -499,6 +499,7 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 		if (link->dump == NULL)
 			return -EINVAL;
 
+		down_read(&crypto_alg_sem);
 		list_for_each_entry(alg, &crypto_alg_list, cra_list)
 			dump_alloc += CRYPTO_REPORT_MAXSIZE;
 
@@ -508,8 +509,11 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 				.done = link->done,
 				.min_dump_alloc = dump_alloc,
 			};
-			return netlink_dump_start(crypto_nlsk, skb, nlh, &c);
+			err = netlink_dump_start(crypto_nlsk, skb, nlh, &c);
 		}
+		up_read(&crypto_alg_sem);
+
+		return err;
 	}
 
 	err = nlmsg_parse(nlh, crypto_msg_min[type], attrs, CRYPTOCFGA_MAX,
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index ad6d8c6..fb53db1 100644
--- a/drivers/acpi/nfit.c
+++ b/drivers/acpi/nfit.c
@@ -469,37 +469,16 @@ static void nfit_mem_find_spa_bdw(struct acpi_nfit_desc *acpi_desc,
 	nfit_mem->bdw = NULL;
 }
 
-static int nfit_mem_add(struct acpi_nfit_desc *acpi_desc,
+static void nfit_mem_init_bdw(struct acpi_nfit_desc *acpi_desc,
 		struct nfit_mem *nfit_mem, struct acpi_nfit_system_address *spa)
 {
 	u16 dcr = __to_nfit_memdev(nfit_mem)->region_index;
 	struct nfit_memdev *nfit_memdev;
 	struct nfit_flush *nfit_flush;
-	struct nfit_dcr *nfit_dcr;
 	struct nfit_bdw *nfit_bdw;
 	struct nfit_idt *nfit_idt;
 	u16 idt_idx, range_index;
 
-	list_for_each_entry(nfit_dcr, &acpi_desc->dcrs, list) {
-		if (nfit_dcr->dcr->region_index != dcr)
-			continue;
-		nfit_mem->dcr = nfit_dcr->dcr;
-		break;
-	}
-
-	if (!nfit_mem->dcr) {
-		dev_dbg(acpi_desc->dev, "SPA %d missing:%s%s\n",
-				spa->range_index, __to_nfit_memdev(nfit_mem)
-				? "" : " MEMDEV", nfit_mem->dcr ? "" : " DCR");
-		return -ENODEV;
-	}
-
-	/*
-	 * We've found enough to create an nvdimm, optionally
-	 * find an associated BDW
-	 */
-	list_add(&nfit_mem->list, &acpi_desc->dimms);
-
 	list_for_each_entry(nfit_bdw, &acpi_desc->bdws, list) {
 		if (nfit_bdw->bdw->region_index != dcr)
 			continue;
@@ -508,12 +487,12 @@ static int nfit_mem_add(struct acpi_nfit_desc *acpi_desc,
 	}
 
 	if (!nfit_mem->bdw)
-		return 0;
+		return;
 
 	nfit_mem_find_spa_bdw(acpi_desc, nfit_mem);
 
 	if (!nfit_mem->spa_bdw)
-		return 0;
+		return;
 
 	range_index = nfit_mem->spa_bdw->range_index;
 	list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) {
@@ -538,8 +517,6 @@ static int nfit_mem_add(struct acpi_nfit_desc *acpi_desc,
 		}
 		break;
 	}
-
-	return 0;
 }
 
 static int nfit_mem_dcr_init(struct acpi_nfit_desc *acpi_desc,
@@ -548,7 +525,6 @@ static int nfit_mem_dcr_init(struct acpi_nfit_desc *acpi_desc,
 	struct nfit_mem *nfit_mem, *found;
 	struct nfit_memdev *nfit_memdev;
 	int type = nfit_spa_type(spa);
-	u16 dcr;
 
 	switch (type) {
 	case NFIT_SPA_DCR:
@@ -559,14 +535,18 @@ static int nfit_mem_dcr_init(struct acpi_nfit_desc *acpi_desc,
 	}
 
 	list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) {
-		int rc;
+		struct nfit_dcr *nfit_dcr;
+		u32 device_handle;
+		u16 dcr;
 
 		if (nfit_memdev->memdev->range_index != spa->range_index)
 			continue;
 		found = NULL;
 		dcr = nfit_memdev->memdev->region_index;
+		device_handle = nfit_memdev->memdev->device_handle;
 		list_for_each_entry(nfit_mem, &acpi_desc->dimms, list)
-			if (__to_nfit_memdev(nfit_mem)->region_index == dcr) {
+			if (__to_nfit_memdev(nfit_mem)->device_handle
+					== device_handle) {
 				found = nfit_mem;
 				break;
 			}
@@ -579,6 +559,31 @@ static int nfit_mem_dcr_init(struct acpi_nfit_desc *acpi_desc,
 			if (!nfit_mem)
 				return -ENOMEM;
 			INIT_LIST_HEAD(&nfit_mem->list);
+			list_add(&nfit_mem->list, &acpi_desc->dimms);
+		}
+
+		list_for_each_entry(nfit_dcr, &acpi_desc->dcrs, list) {
+			if (nfit_dcr->dcr->region_index != dcr)
+				continue;
+			/*
+			 * Record the control region for the dimm.  For
+			 * the ACPI 6.1 case, where there are separate
+			 * control regions for the pmem vs blk
+			 * interfaces, be sure to record the extended
+			 * blk details.
+			 */
+			if (!nfit_mem->dcr)
+				nfit_mem->dcr = nfit_dcr->dcr;
+			else if (nfit_mem->dcr->windows == 0
+					&& nfit_dcr->dcr->windows)
+				nfit_mem->dcr = nfit_dcr->dcr;
+			break;
+		}
+
+		if (dcr && !nfit_mem->dcr) {
+			dev_err(acpi_desc->dev, "SPA %d missing DCR %d\n",
+					spa->range_index, dcr);
+			return -ENODEV;
 		}
 
 		if (type == NFIT_SPA_DCR) {
@@ -595,6 +600,7 @@ static int nfit_mem_dcr_init(struct acpi_nfit_desc *acpi_desc,
 				nfit_mem->idt_dcr = nfit_idt->idt;
 				break;
 			}
+			nfit_mem_init_bdw(acpi_desc, nfit_mem, spa);
 		} else {
 			/*
 			 * A single dimm may belong to multiple SPA-PM
@@ -603,13 +609,6 @@ static int nfit_mem_dcr_init(struct acpi_nfit_desc *acpi_desc,
 			 */
 			nfit_mem->memdev_pmem = nfit_memdev->memdev;
 		}
-
-		if (found)
-			continue;
-
-		rc = nfit_mem_add(acpi_desc, nfit_mem, spa);
-		if (rc)
-			return rc;
 	}
 
 	return 0;
@@ -1504,9 +1503,7 @@ static int ars_do_start(struct nvdimm_bus_descriptor *nd_desc,
 		case 1:
 			/* ARS unsupported, but we should never get here */
 			return 0;
-		case 2:
-			return -EINVAL;
-		case 3:
+		case 6:
 			/* ARS is in progress */
 			msleep(1000);
 			break;
@@ -1517,13 +1514,13 @@ static int ars_do_start(struct nvdimm_bus_descriptor *nd_desc,
 }
 
 static int ars_get_status(struct nvdimm_bus_descriptor *nd_desc,
-		struct nd_cmd_ars_status *cmd)
+		struct nd_cmd_ars_status *cmd, u32 size)
 {
 	int rc;
 
 	while (1) {
 		rc = nd_desc->ndctl(nd_desc, NULL, ND_CMD_ARS_STATUS, cmd,
-			sizeof(*cmd));
+			size);
 		if (rc || cmd->status & 0xffff)
 			return -ENXIO;
 
@@ -1538,6 +1535,8 @@ static int ars_get_status(struct nvdimm_bus_descriptor *nd_desc,
 		case 2:
 			/* No ARS performed for the current boot */
 			return 0;
+		case 3:
+			/* TODO: error list overflow support */
 		default:
 			return -ENXIO;
 		}
@@ -1581,6 +1580,7 @@ static int acpi_nfit_find_poison(struct acpi_nfit_desc *acpi_desc,
 	struct nd_cmd_ars_start *ars_start = NULL;
 	struct nd_cmd_ars_cap *ars_cap = NULL;
 	u64 start, len, cur, remaining;
+	u32 ars_status_size;
 	int rc;
 
 	ars_cap = kzalloc(sizeof(*ars_cap), GFP_KERNEL);
@@ -1610,14 +1610,14 @@ static int acpi_nfit_find_poison(struct acpi_nfit_desc *acpi_desc,
 	 * Check if a full-range ARS has been run. If so, use those results
 	 * without having to start a new ARS.
 	 */
-	ars_status = kzalloc(ars_cap->max_ars_out + sizeof(*ars_status),
-			GFP_KERNEL);
+	ars_status_size = ars_cap->max_ars_out;
+	ars_status = kzalloc(ars_status_size, GFP_KERNEL);
 	if (!ars_status) {
 		rc = -ENOMEM;
 		goto out;
 	}
 
-	rc = ars_get_status(nd_desc, ars_status);
+	rc = ars_get_status(nd_desc, ars_status, ars_status_size);
 	if (rc)
 		goto out;
 
@@ -1647,7 +1647,7 @@ static int acpi_nfit_find_poison(struct acpi_nfit_desc *acpi_desc,
 		if (rc)
 			goto out;
 
-		rc = ars_get_status(nd_desc, ars_status);
+		rc = ars_get_status(nd_desc, ars_status, ars_status_size);
 		if (rc)
 			goto out;
 
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index d30184c..c8e169e 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -406,7 +406,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
 		return 0;
 	}
 
-	if (pci_has_managed_irq(dev))
+	if (dev->irq_managed && dev->irq > 0)
 		return 0;
 
 	entry = acpi_pci_irq_lookup(dev, pin);
@@ -451,7 +451,8 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
 		kfree(entry);
 		return rc;
 	}
-	pci_set_managed_irq(dev, rc);
+	dev->irq = rc;
+	dev->irq_managed = 1;
 
 	if (link)
 		snprintf(link_desc, sizeof(link_desc), " -> Link[%s]", link);
@@ -474,9 +475,17 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
 	u8 pin;
 
 	pin = dev->pin;
-	if (!pin || !pci_has_managed_irq(dev))
+	if (!pin || !dev->irq_managed || dev->irq <= 0)
 		return;
 
+	/* Keep IOAPIC pin configuration when suspending */
+	if (dev->dev.power.is_prepared)
+		return;
+#ifdef	CONFIG_PM
+	if (dev->dev.power.runtime_status == RPM_SUSPENDING)
+		return;
+#endif
+
 	entry = acpi_pci_irq_lookup(dev, pin);
 	if (!entry)
 		return;
@@ -496,6 +505,6 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
 	dev_dbg(&dev->dev, "PCI INT %c disabled\n", pin_name(pin));
 	if (gsi >= 0) {
 		acpi_unregister_gsi(gsi);
-		pci_reset_managed_irq(dev);
+		dev->irq_managed = 0;
 	}
 }
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index fa28635..ededa90 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -4,7 +4,6 @@
  *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
  *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
  *  Copyright (C) 2002       Dominik Brodowski <devel@brodo.de>
- *  Copyright (c) 2015, The Linux Foundation. All rights reserved.
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
@@ -438,6 +437,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
  * enabled system.
  */
 
+#define ACPI_MAX_IRQS		256
 #define ACPI_MAX_ISA_IRQ	16
 
 #define PIRQ_PENALTY_PCI_AVAILABLE	(0)
@@ -447,7 +447,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
 #define PIRQ_PENALTY_ISA_USED		(16*16*16*16*16)
 #define PIRQ_PENALTY_ISA_ALWAYS		(16*16*16*16*16*16)
 
-static int acpi_irq_isa_penalty[ACPI_MAX_ISA_IRQ] = {
+static int acpi_irq_penalty[ACPI_MAX_IRQS] = {
 	PIRQ_PENALTY_ISA_ALWAYS,	/* IRQ0 timer */
 	PIRQ_PENALTY_ISA_ALWAYS,	/* IRQ1 keyboard */
 	PIRQ_PENALTY_ISA_ALWAYS,	/* IRQ2 cascade */
@@ -464,68 +464,9 @@ static int acpi_irq_isa_penalty[ACPI_MAX_ISA_IRQ] = {
 	PIRQ_PENALTY_ISA_USED,		/* IRQ13 fpe, sometimes */
 	PIRQ_PENALTY_ISA_USED,		/* IRQ14 ide0 */
 	PIRQ_PENALTY_ISA_USED,		/* IRQ15 ide1 */
+	/* >IRQ15 */
 };
 
-struct irq_penalty_info {
-	int irq;
-	int penalty;
-	struct list_head node;
-};
-
-static LIST_HEAD(acpi_irq_penalty_list);
-
-static int acpi_irq_get_penalty(int irq)
-{
-	struct irq_penalty_info *irq_info;
-
-	if (irq < ACPI_MAX_ISA_IRQ)
-		return acpi_irq_isa_penalty[irq];
-
-	list_for_each_entry(irq_info, &acpi_irq_penalty_list, node) {
-		if (irq_info->irq == irq)
-			return irq_info->penalty;
-	}
-
-	return 0;
-}
-
-static int acpi_irq_set_penalty(int irq, int new_penalty)
-{
-	struct irq_penalty_info *irq_info;
-
-	/* see if this is a ISA IRQ */
-	if (irq < ACPI_MAX_ISA_IRQ) {
-		acpi_irq_isa_penalty[irq] = new_penalty;
-		return 0;
-	}
-
-	/* next, try to locate from the dynamic list */
-	list_for_each_entry(irq_info, &acpi_irq_penalty_list, node) {
-		if (irq_info->irq == irq) {
-			irq_info->penalty  = new_penalty;
-			return 0;
-		}
-	}
-
-	/* nope, let's allocate a slot for this IRQ */
-	irq_info = kzalloc(sizeof(*irq_info), GFP_KERNEL);
-	if (!irq_info)
-		return -ENOMEM;
-
-	irq_info->irq = irq;
-	irq_info->penalty = new_penalty;
-	list_add_tail(&irq_info->node, &acpi_irq_penalty_list);
-
-	return 0;
-}
-
-static void acpi_irq_add_penalty(int irq, int penalty)
-{
-	int curpen = acpi_irq_get_penalty(irq);
-
-	acpi_irq_set_penalty(irq, curpen + penalty);
-}
-
 int __init acpi_irq_penalty_init(void)
 {
 	struct acpi_pci_link *link;
@@ -546,16 +487,15 @@ int __init acpi_irq_penalty_init(void)
 			    link->irq.possible_count;
 
 			for (i = 0; i < link->irq.possible_count; i++) {
-				if (link->irq.possible[i] < ACPI_MAX_ISA_IRQ) {
-					int irqpos = link->irq.possible[i];
-
-					acpi_irq_add_penalty(irqpos, penalty);
-				}
+				if (link->irq.possible[i] < ACPI_MAX_ISA_IRQ)
+					acpi_irq_penalty[link->irq.
+							 possible[i]] +=
+					    penalty;
 			}
 
 		} else if (link->irq.active) {
-			acpi_irq_add_penalty(link->irq.active,
-					     PIRQ_PENALTY_PCI_POSSIBLE);
+			acpi_irq_penalty[link->irq.active] +=
+			    PIRQ_PENALTY_PCI_POSSIBLE;
 		}
 	}
 
@@ -607,12 +547,12 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
 		 * the use of IRQs 9, 10, 11, and >15.
 		 */
 		for (i = (link->irq.possible_count - 1); i >= 0; i--) {
-			if (acpi_irq_get_penalty(irq) >
-			    acpi_irq_get_penalty(link->irq.possible[i]))
+			if (acpi_irq_penalty[irq] >
+			    acpi_irq_penalty[link->irq.possible[i]])
 				irq = link->irq.possible[i];
 		}
 	}
-	if (acpi_irq_get_penalty(irq) >= PIRQ_PENALTY_ISA_ALWAYS) {
+	if (acpi_irq_penalty[irq] >= PIRQ_PENALTY_ISA_ALWAYS) {
 		printk(KERN_ERR PREFIX "No IRQ available for %s [%s]. "
 			    "Try pci=noacpi or acpi=off\n",
 			    acpi_device_name(link->device),
@@ -628,8 +568,7 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
 			    acpi_device_bid(link->device));
 		return -ENODEV;
 	} else {
-		acpi_irq_add_penalty(link->irq.active, PIRQ_PENALTY_PCI_USING);
-
+		acpi_irq_penalty[link->irq.active] += PIRQ_PENALTY_PCI_USING;
 		printk(KERN_WARNING PREFIX "%s [%s] enabled at IRQ %d\n",
 		       acpi_device_name(link->device),
 		       acpi_device_bid(link->device), link->irq.active);
@@ -839,7 +778,7 @@ static void acpi_pci_link_remove(struct acpi_device *device)
 }
 
 /*
- * modify penalty from cmdline
+ * modify acpi_irq_penalty[] from cmdline
  */
 static int __init acpi_irq_penalty_update(char *str, int used)
 {
@@ -857,10 +796,13 @@ static int __init acpi_irq_penalty_update(char *str, int used)
 		if (irq < 0)
 			continue;
 
+		if (irq >= ARRAY_SIZE(acpi_irq_penalty))
+			continue;
+
 		if (used)
-			acpi_irq_add_penalty(irq, PIRQ_PENALTY_ISA_USED);
+			acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_USED;
 		else
-			acpi_irq_set_penalty(irq, PIRQ_PENALTY_PCI_AVAILABLE);
+			acpi_irq_penalty[irq] = PIRQ_PENALTY_PCI_AVAILABLE;
 
 		if (retval != 2)	/* no next number */
 			break;
@@ -877,15 +819,18 @@ static int __init acpi_irq_penalty_update(char *str, int used)
  */
 void acpi_penalize_isa_irq(int irq, int active)
 {
-	if (irq >= 0)
-		acpi_irq_add_penalty(irq, active ?
-			PIRQ_PENALTY_ISA_USED : PIRQ_PENALTY_PCI_USING);
+	if (irq >= 0 && irq < ARRAY_SIZE(acpi_irq_penalty)) {
+		if (active)
+			acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_USED;
+		else
+			acpi_irq_penalty[irq] += PIRQ_PENALTY_PCI_USING;
+	}
 }
 
 bool acpi_isa_irq_available(int irq)
 {
-	return irq >= 0 &&
-		(acpi_irq_get_penalty(irq) < PIRQ_PENALTY_ISA_ALWAYS);
+	return irq >= 0 && (irq >= ARRAY_SIZE(acpi_irq_penalty) ||
+			    acpi_irq_penalty[irq] < PIRQ_PENALTY_ISA_ALWAYS);
 }
 
 /*
@@ -895,18 +840,13 @@ bool acpi_isa_irq_available(int irq)
  */
 void acpi_penalize_sci_irq(int irq, int trigger, int polarity)
 {
-	int penalty;
-
-	if (irq < 0)
-		return;
-
-	if (trigger != ACPI_MADT_TRIGGER_LEVEL ||
-	    polarity != ACPI_MADT_POLARITY_ACTIVE_LOW)
-		penalty = PIRQ_PENALTY_ISA_ALWAYS;
-	else
-		penalty = PIRQ_PENALTY_PCI_USING;
-
-	acpi_irq_add_penalty(irq, penalty);
+	if (irq >= 0 && irq < ARRAY_SIZE(acpi_irq_penalty)) {
+		if (trigger != ACPI_MADT_TRIGGER_LEVEL ||
+		    polarity != ACPI_MADT_POLARITY_ACTIVE_LOW)
+			acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_ALWAYS;
+		else
+			acpi_irq_penalty[irq] += PIRQ_PENALTY_PCI_USING;
+	}
 }
 
 /*
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index f080a8b..16288e7 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -1321,6 +1321,7 @@ static void binder_transaction(struct binder_proc *proc,
 	struct binder_transaction *t;
 	struct binder_work *tcomplete;
 	binder_size_t *offp, *off_end;
+	binder_size_t off_min;
 	struct binder_proc *target_proc;
 	struct binder_thread *target_thread = NULL;
 	struct binder_node *target_node = NULL;
@@ -1522,18 +1523,24 @@ static void binder_transaction(struct binder_proc *proc,
 		goto err_bad_offset;
 	}
 	off_end = (void *)offp + tr->offsets_size;
+	off_min = 0;
 	for (; offp < off_end; offp++) {
 		struct flat_binder_object *fp;
 
 		if (*offp > t->buffer->data_size - sizeof(*fp) ||
+		    *offp < off_min ||
 		    t->buffer->data_size < sizeof(*fp) ||
 		    !IS_ALIGNED(*offp, sizeof(u32))) {
-			binder_user_error("%d:%d got transaction with invalid offset, %lld\n",
-					  proc->pid, thread->pid, (u64)*offp);
+			binder_user_error("%d:%d got transaction with invalid offset, %lld (min %lld, max %lld)\n",
+					  proc->pid, thread->pid, (u64)*offp,
+					  (u64)off_min,
+					  (u64)(t->buffer->data_size -
+					  sizeof(*fp)));
 			return_error = BR_FAILED_REPLY;
 			goto err_bad_offset;
 		}
 		fp = (struct flat_binder_object *)(t->buffer->data + *offp);
+		off_min = *offp + sizeof(struct flat_binder_object);
 		switch (fp->type) {
 		case BINDER_TYPE_BINDER:
 		case BINDER_TYPE_WEAK_BINDER: {
@@ -2074,7 +2081,7 @@ static int binder_thread_write(struct binder_proc *proc,
 			if (get_user(cookie, (binder_uintptr_t __user *)ptr))
 				return -EFAULT;
 
-			ptr += sizeof(void *);
+			ptr += sizeof(cookie);
 			list_for_each_entry(w, &proc->delivered_death, entry) {
 				struct binder_ref_death *tmp_death = container_of(w, struct binder_ref_death, work);
 
@@ -3598,13 +3605,24 @@ static int binder_transactions_show(struct seq_file *m, void *unused)
 
 static int binder_proc_show(struct seq_file *m, void *unused)
 {
+	struct binder_proc *itr;
 	struct binder_proc *proc = m->private;
 	int do_lock = !binder_debug_no_lock;
+	bool valid_proc = false;
 
 	if (do_lock)
 		binder_lock(__func__);
-	seq_puts(m, "binder proc state:\n");
-	print_binder_proc(m, proc, 1);
+
+	hlist_for_each_entry(itr, &binder_procs, proc_node) {
+		if (itr == proc) {
+			valid_proc = true;
+			break;
+		}
+	}
+	if (valid_proc) {
+		seq_puts(m, "binder proc state:\n");
+		print_binder_proc(m, proc, 1);
+	}
 	if (do_lock)
 		binder_unlock(__func__);
 	return 0;
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 594fcab..546a369 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -264,6 +264,26 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
 	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
 	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci }, /* DNV AHCI */
 	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
 	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */
 	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index a4faa43..a44c75d 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -250,6 +250,7 @@ enum {
 	AHCI_HFLAG_MULTI_MSI		= 0,
 	AHCI_HFLAG_MULTI_MSIX		= 0,
 #endif
+	AHCI_HFLAG_WAKE_BEFORE_STOP	= (1 << 22), /* wake before DMA stop */
 
 	/* ap->flags bits */
 
diff --git a/drivers/ata/ahci_brcmstb.c b/drivers/ata/ahci_brcmstb.c
index b36cae2..e87bcec 100644
--- a/drivers/ata/ahci_brcmstb.c
+++ b/drivers/ata/ahci_brcmstb.c
@@ -317,6 +317,7 @@ static int brcm_ahci_probe(struct platform_device *pdev)
 	if (IS_ERR(hpriv))
 		return PTR_ERR(hpriv);
 	hpriv->plat_data = priv;
+	hpriv->flags = AHCI_HFLAG_WAKE_BEFORE_STOP;
 
 	brcm_sata_alpm_init(hpriv);
 
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index d61740e..4029679 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -496,8 +496,8 @@ void ahci_save_initial_config(struct device *dev, struct ahci_host_priv *hpriv)
 		}
 	}
 
-	/* fabricate port_map from cap.nr_ports */
-	if (!port_map) {
+	/* fabricate port_map from cap.nr_ports for < AHCI 1.3 */
+	if (!port_map && vers < 0x10300) {
 		port_map = (1 << ahci_nr_ports(cap)) - 1;
 		dev_warn(dev, "forcing PORTS_IMPL to 0x%x\n", port_map);
 
@@ -593,8 +593,22 @@ EXPORT_SYMBOL_GPL(ahci_start_engine);
 int ahci_stop_engine(struct ata_port *ap)
 {
 	void __iomem *port_mmio = ahci_port_base(ap);
+	struct ahci_host_priv *hpriv = ap->host->private_data;
 	u32 tmp;
 
+	/*
+	 * On some controllers, stopping a port's DMA engine while the port
+	 * is in ALPM state (partial or slumber) results in failures on
+	 * subsequent DMA engine starts.  For those controllers, put the
+	 * port back in active state before stopping its DMA engine.
+	 */
+	if ((hpriv->flags & AHCI_HFLAG_WAKE_BEFORE_STOP) &&
+	    (ap->link.lpm_policy > ATA_LPM_MAX_POWER) &&
+	    ahci_set_lpm(&ap->link, ATA_LPM_MAX_POWER, ATA_LPM_WAKE_ONLY)) {
+		dev_err(ap->host->dev, "Failed to wake up port before engine stop\n");
+		return -EIO;
+	}
+
 	tmp = readl(port_mmio + PORT_CMD);
 
 	/* check if the HBA is idle */
@@ -689,6 +703,9 @@ static int ahci_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 	void __iomem *port_mmio = ahci_port_base(ap);
 
 	if (policy != ATA_LPM_MAX_POWER) {
+		/* wakeup flag only applies to the max power policy */
+		hints &= ~ATA_LPM_WAKE_ONLY;
+
 		/*
 		 * Disable interrupts on Phy Ready. This keeps us from
 		 * getting woken up due to spurious phy ready
@@ -704,7 +721,8 @@ static int ahci_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 		u32 cmd = readl(port_mmio + PORT_CMD);
 
 		if (policy == ATA_LPM_MAX_POWER || !(hints & ATA_LPM_HIPM)) {
-			cmd &= ~(PORT_CMD_ASP | PORT_CMD_ALPE);
+			if (!(hints & ATA_LPM_WAKE_ONLY))
+				cmd &= ~(PORT_CMD_ASP | PORT_CMD_ALPE);
 			cmd |= PORT_CMD_ICC_ACTIVE;
 
 			writel(cmd, port_mmio + PORT_CMD);
@@ -712,6 +730,9 @@ static int ahci_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 
 			/* wait 10ms to be sure we've come out of LPM state */
 			ata_msleep(ap, 10);
+
+			if (hints & ATA_LPM_WAKE_ONLY)
+				return 0;
 		} else {
 			cmd |= PORT_CMD_ALPE;
 			if (policy == ATA_LPM_MIN_POWER)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index cbb7471..55e257c 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4125,6 +4125,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "SAMSUNG CD-ROM SN-124", "N001",	ATA_HORKAGE_NODMA },
 	{ "Seagate STT20000A", NULL,		ATA_HORKAGE_NODMA },
 	{ " 2GB ATA Flash Disk", "ADMA428M",	ATA_HORKAGE_NODMA },
+	{ "VRFDFC22048UCHC-TE*", NULL,		ATA_HORKAGE_NODMA },
 	/* Odd clown on sil3726/4726 PMPs */
 	{ "Config  Disk",	NULL,		ATA_HORKAGE_DISABLE },
 
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index cdf6215..051b615 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -997,12 +997,9 @@ static inline int ata_hsm_ok_in_wq(struct ata_port *ap,
 static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
 {
 	struct ata_port *ap = qc->ap;
-	unsigned long flags;
 
 	if (ap->ops->error_handler) {
 		if (in_wq) {
-			spin_lock_irqsave(ap->lock, flags);
-
 			/* EH might have kicked in while host lock is
 			 * released.
 			 */
@@ -1014,8 +1011,6 @@ static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
 				} else
 					ata_port_freeze(ap);
 			}
-
-			spin_unlock_irqrestore(ap->lock, flags);
 		} else {
 			if (likely(!(qc->err_mask & AC_ERR_HSM)))
 				ata_qc_complete(qc);
@@ -1024,10 +1019,8 @@ static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
 		}
 	} else {
 		if (in_wq) {
-			spin_lock_irqsave(ap->lock, flags);
 			ata_sff_irq_on(ap);
 			ata_qc_complete(qc);
-			spin_unlock_irqrestore(ap->lock, flags);
 		} else
 			ata_qc_complete(qc);
 	}
@@ -1048,9 +1041,10 @@ int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc,
 {
 	struct ata_link *link = qc->dev->link;
 	struct ata_eh_info *ehi = &link->eh_info;
-	unsigned long flags = 0;
 	int poll_next;
 
+	lockdep_assert_held(ap->lock);
+
 	WARN_ON_ONCE((qc->flags & ATA_QCFLAG_ACTIVE) == 0);
 
 	/* Make sure ata_sff_qc_issue() does not throw things
@@ -1112,14 +1106,6 @@ fsm_start:
 			}
 		}
 
-		/* Send the CDB (atapi) or the first data block (ata pio out).
-		 * During the state transition, interrupt handler shouldn't
-		 * be invoked before the data transfer is complete and
-		 * hsm_task_state is changed. Hence, the following locking.
-		 */
-		if (in_wq)
-			spin_lock_irqsave(ap->lock, flags);
-
 		if (qc->tf.protocol == ATA_PROT_PIO) {
 			/* PIO data out protocol.
 			 * send first data block.
@@ -1135,9 +1121,6 @@ fsm_start:
 			/* send CDB */
 			atapi_send_cdb(ap, qc);
 
-		if (in_wq)
-			spin_unlock_irqrestore(ap->lock, flags);
-
 		/* if polling, ata_sff_pio_task() handles the rest.
 		 * otherwise, interrupt handler takes over from here.
 		 */
@@ -1296,7 +1279,8 @@ fsm_start:
 		break;
 	default:
 		poll_next = 0;
-		BUG();
+		WARN(true, "ata%d: SFF host state machine in invalid state %d",
+		     ap->print_id, ap->hsm_task_state);
 	}
 
 	return poll_next;
@@ -1361,12 +1345,14 @@ static void ata_sff_pio_task(struct work_struct *work)
 	u8 status;
 	int poll_next;
 
+	spin_lock_irq(ap->lock);
+
 	BUG_ON(ap->sff_pio_task_link == NULL);
 	/* qc can be NULL if timeout occurred */
 	qc = ata_qc_from_tag(ap, link->active_tag);
 	if (!qc) {
 		ap->sff_pio_task_link = NULL;
-		return;
+		goto out_unlock;
 	}
 
 fsm_start:
@@ -1381,11 +1367,14 @@ fsm_start:
 	 */
 	status = ata_sff_busy_wait(ap, ATA_BUSY, 5);
 	if (status & ATA_BUSY) {
+		spin_unlock_irq(ap->lock);
 		ata_msleep(ap, 2);
+		spin_lock_irq(ap->lock);
+
 		status = ata_sff_busy_wait(ap, ATA_BUSY, 10);
 		if (status & ATA_BUSY) {
 			ata_sff_queue_pio_task(link, ATA_SHORT_PAUSE);
-			return;
+			goto out_unlock;
 		}
 	}
 
@@ -1402,6 +1391,8 @@ fsm_start:
 	 */
 	if (poll_next)
 		goto fsm_start;
+out_unlock:
+	spin_unlock_irq(ap->lock);
 }
 
 /**
diff --git a/drivers/base/component.c b/drivers/base/component.c
index 89f5cf68..04a1582 100644
--- a/drivers/base/component.c
+++ b/drivers/base/component.c
@@ -206,6 +206,8 @@ static void component_match_release(struct device *master,
 		if (mc->release)
 			mc->release(master, mc->data);
 	}
+
+	kfree(match->compare);
 }
 
 static void devm_component_match_release(struct device *dev, void *res)
@@ -221,14 +223,14 @@ static int component_match_realloc(struct device *dev,
 	if (match->alloc == num)
 		return 0;
 
-	new = devm_kmalloc_array(dev, num, sizeof(*new), GFP_KERNEL);
+	new = kmalloc_array(num, sizeof(*new), GFP_KERNEL);
 	if (!new)
 		return -ENOMEM;
 
 	if (match->compare) {
 		memcpy(new, match->compare, sizeof(*new) *
 					    min(match->num, num));
-		devm_kfree(dev, match->compare);
+		kfree(match->compare);
 	}
 	match->compare = new;
 	match->alloc = num;
@@ -283,6 +285,24 @@ void component_match_add_release(struct device *master,
 }
 EXPORT_SYMBOL(component_match_add_release);
 
+static void free_master(struct master *master)
+{
+	struct component_match *match = master->match;
+	int i;
+
+	list_del(&master->node);
+
+	if (match) {
+		for (i = 0; i < match->num; i++) {
+			struct component *c = match->compare[i].component;
+			if (c)
+				c->master = NULL;
+		}
+	}
+
+	kfree(master);
+}
+
 int component_master_add_with_match(struct device *dev,
 	const struct component_master_ops *ops,
 	struct component_match *match)
@@ -309,11 +329,9 @@ int component_master_add_with_match(struct device *dev,
 
 	ret = try_to_bring_up_master(master, NULL);
 
-	if (ret < 0) {
-		/* Delete off the list if we weren't successful */
-		list_del(&master->node);
-		kfree(master);
-	}
+	if (ret < 0)
+		free_master(master);
+
 	mutex_unlock(&component_mutex);
 
 	return ret < 0 ? ret : 0;
@@ -324,25 +342,12 @@ void component_master_del(struct device *dev,
 	const struct component_master_ops *ops)
 {
 	struct master *master;
-	int i;
 
 	mutex_lock(&component_mutex);
 	master = __master_find(dev, ops);
 	if (master) {
-		struct component_match *match = master->match;
-
 		take_down_master(master);
-
-		list_del(&master->node);
-
-		if (match) {
-			for (i = 0; i < match->num; i++) {
-				struct component *c = match->compare[i].component;
-				if (c)
-					c->master = NULL;
-			}
-		}
-		kfree(master);
+		free_master(master);
 	}
 	mutex_unlock(&component_mutex);
 }
@@ -486,6 +491,8 @@ int component_add(struct device *dev, const struct component_ops *ops)
 
 	ret = try_to_bring_up_masters(component);
 	if (ret < 0) {
+		if (component->master)
+			remove_component(component->master, component);
 		list_del(&component->node);
 
 		kfree(component);
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index b9250e5..a7f4aa3 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -257,7 +257,7 @@ static void __fw_free_buf(struct kref *ref)
 		vunmap(buf->data);
 		for (i = 0; i < buf->nr_pages; i++)
 			__free_page(buf->pages[i]);
-		kfree(buf->pages);
+		vfree(buf->pages);
 	} else
 #endif
 		vfree(buf->data);
@@ -353,15 +353,15 @@ static int fw_get_filesystem_firmware(struct device *device,
 		rc = fw_read_file_contents(file, buf);
 		fput(file);
 		if (rc)
-			dev_warn(device, "firmware, attempted to load %s, but failed with error %d\n",
-				path, rc);
+			dev_warn(device, "loading %s failed with error %d\n",
+				 path, rc);
 		else
 			break;
 	}
 	__putname(path);
 
 	if (!rc) {
-		dev_dbg(device, "firmware: direct-loading firmware %s\n",
+		dev_dbg(device, "direct-loading %s\n",
 			buf->fw_id);
 		mutex_lock(&fw_lock);
 		set_bit(FW_STATUS_DONE, &buf->status);
@@ -660,7 +660,7 @@ static ssize_t firmware_loading_store(struct device *dev,
 		if (!test_bit(FW_STATUS_DONE, &fw_buf->status)) {
 			for (i = 0; i < fw_buf->nr_pages; i++)
 				__free_page(fw_buf->pages[i]);
-			kfree(fw_buf->pages);
+			vfree(fw_buf->pages);
 			fw_buf->pages = NULL;
 			fw_buf->page_array_size = 0;
 			fw_buf->nr_pages = 0;
@@ -770,8 +770,7 @@ static int fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size)
 					 buf->page_array_size * 2);
 		struct page **new_pages;
 
-		new_pages = kmalloc(new_array_size * sizeof(void *),
-				    GFP_KERNEL);
+		new_pages = vmalloc(new_array_size * sizeof(void *));
 		if (!new_pages) {
 			fw_load_abort(fw_priv);
 			return -ENOMEM;
@@ -780,7 +779,7 @@ static int fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size)
 		       buf->page_array_size * sizeof(void *));
 		memset(&new_pages[buf->page_array_size], 0, sizeof(void *) *
 		       (new_array_size - buf->page_array_size));
-		kfree(buf->pages);
+		vfree(buf->pages);
 		buf->pages = new_pages;
 		buf->page_array_size = new_array_size;
 	}
@@ -1051,7 +1050,7 @@ _request_firmware_prepare(struct firmware **firmware_p, const char *name,
 	}
 
 	if (fw_get_builtin_firmware(firmware, name)) {
-		dev_dbg(device, "firmware: using built-in firmware %s\n", name);
+		dev_dbg(device, "using built-in %s\n", name);
 		return 0; /* assigned */
 	}
 
diff --git a/drivers/base/regmap/regmap-mmio.c b/drivers/base/regmap/regmap-mmio.c
index 8812bfb..eea5156 100644
--- a/drivers/base/regmap/regmap-mmio.c
+++ b/drivers/base/regmap/regmap-mmio.c
@@ -133,17 +133,17 @@ static int regmap_mmio_gather_write(void *context,
 	while (val_size) {
 		switch (ctx->val_bytes) {
 		case 1:
-			__raw_writeb(*(u8 *)val, ctx->regs + offset);
+			writeb(*(u8 *)val, ctx->regs + offset);
 			break;
 		case 2:
-			__raw_writew(*(u16 *)val, ctx->regs + offset);
+			writew(*(u16 *)val, ctx->regs + offset);
 			break;
 		case 4:
-			__raw_writel(*(u32 *)val, ctx->regs + offset);
+			writel(*(u32 *)val, ctx->regs + offset);
 			break;
 #ifdef CONFIG_64BIT
 		case 8:
-			__raw_writeq(*(u64 *)val, ctx->regs + offset);
+			writeq(*(u64 *)val, ctx->regs + offset);
 			break;
 #endif
 		default:
@@ -193,17 +193,17 @@ static int regmap_mmio_read(void *context,
 	while (val_size) {
 		switch (ctx->val_bytes) {
 		case 1:
-			*(u8 *)val = __raw_readb(ctx->regs + offset);
+			*(u8 *)val = readb(ctx->regs + offset);
 			break;
 		case 2:
-			*(u16 *)val = __raw_readw(ctx->regs + offset);
+			*(u16 *)val = readw(ctx->regs + offset);
 			break;
 		case 4:
-			*(u32 *)val = __raw_readl(ctx->regs + offset);
+			*(u32 *)val = readl(ctx->regs + offset);
 			break;
 #ifdef CONFIG_64BIT
 		case 8:
-			*(u64 *)val = __raw_readq(ctx->regs + offset);
+			*(u64 *)val = readq(ctx->regs + offset);
 			break;
 #endif
 		default:
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 9e25120..84708a5 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -866,7 +866,7 @@ static void set_fdc(int drive)
 }
 
 /* locks the driver */
-static int lock_fdc(int drive, bool interruptible)
+static int lock_fdc(int drive)
 {
 	if (WARN(atomic_read(&usage_count) == 0,
 		 "Trying to lock fdc while usage count=0\n"))
@@ -2173,7 +2173,7 @@ static int do_format(int drive, struct format_descr *tmp_format_req)
 {
 	int ret;
 
-	if (lock_fdc(drive, true))
+	if (lock_fdc(drive))
 		return -EINTR;
 
 	set_floppy(drive);
@@ -2960,7 +2960,7 @@ static int user_reset_fdc(int drive, int arg, bool interruptible)
 {
 	int ret;
 
-	if (lock_fdc(drive, interruptible))
+	if (lock_fdc(drive))
 		return -EINTR;
 
 	if (arg == FD_RESET_ALWAYS)
@@ -3243,7 +3243,7 @@ static int set_geometry(unsigned int cmd, struct floppy_struct *g,
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
 		mutex_lock(&open_lock);
-		if (lock_fdc(drive, true)) {
+		if (lock_fdc(drive)) {
 			mutex_unlock(&open_lock);
 			return -EINTR;
 		}
@@ -3263,7 +3263,7 @@ static int set_geometry(unsigned int cmd, struct floppy_struct *g,
 	} else {
 		int oldStretch;
 
-		if (lock_fdc(drive, true))
+		if (lock_fdc(drive))
 			return -EINTR;
 		if (cmd != FDDEFPRM) {
 			/* notice a disk change immediately, else
@@ -3349,7 +3349,7 @@ static int get_floppy_geometry(int drive, int type, struct floppy_struct **g)
 	if (type)
 		*g = &floppy_type[type];
 	else {
-		if (lock_fdc(drive, false))
+		if (lock_fdc(drive))
 			return -EINTR;
 		if (poll_drive(false, 0) == -EINTR)
 			return -EINTR;
@@ -3433,7 +3433,7 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
 		if (UDRS->fd_ref != 1)
 			/* somebody else has this drive open */
 			return -EBUSY;
-		if (lock_fdc(drive, true))
+		if (lock_fdc(drive))
 			return -EINTR;
 
 		/* do the actual eject. Fails on
@@ -3445,7 +3445,7 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
 		process_fd_request();
 		return ret;
 	case FDCLRPRM:
-		if (lock_fdc(drive, true))
+		if (lock_fdc(drive))
 			return -EINTR;
 		current_type[drive] = NULL;
 		floppy_sizes[drive] = MAX_DISK_SIZE << 1;
@@ -3467,7 +3467,7 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
 		UDP->flags &= ~FTD_MSG;
 		return 0;
 	case FDFMTBEG:
-		if (lock_fdc(drive, true))
+		if (lock_fdc(drive))
 			return -EINTR;
 		if (poll_drive(true, FD_RAW_NEED_DISK) == -EINTR)
 			return -EINTR;
@@ -3484,7 +3484,7 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
 		return do_format(drive, &inparam.f);
 	case FDFMTEND:
 	case FDFLUSH:
-		if (lock_fdc(drive, true))
+		if (lock_fdc(drive))
 			return -EINTR;
 		return invalidate_drive(bdev);
 	case FDSETEMSGTRESH:
@@ -3507,7 +3507,7 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
 		outparam = UDP;
 		break;
 	case FDPOLLDRVSTAT:
-		if (lock_fdc(drive, true))
+		if (lock_fdc(drive))
 			return -EINTR;
 		if (poll_drive(true, FD_RAW_NEED_DISK) == -EINTR)
 			return -EINTR;
@@ -3530,7 +3530,7 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
 	case FDRAWCMD:
 		if (type)
 			return -EINVAL;
-		if (lock_fdc(drive, true))
+		if (lock_fdc(drive))
 			return -EINTR;
 		set_floppy(drive);
 		i = raw_cmd_ioctl(cmd, (void __user *)param);
@@ -3539,7 +3539,7 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
 		process_fd_request();
 		return i;
 	case FDTWADDLE:
-		if (lock_fdc(drive, true))
+		if (lock_fdc(drive))
 			return -EINTR;
 		twaddle();
 		process_fd_request();
@@ -3663,6 +3663,11 @@ static int floppy_open(struct block_device *bdev, fmode_t mode)
 
 	opened_bdev[drive] = bdev;
 
+	if (!(mode & (FMODE_READ|FMODE_WRITE))) {
+		res = -EINVAL;
+		goto out;
+	}
+
 	res = -ENXIO;
 
 	if (!floppy_track_buffer) {
@@ -3706,21 +3711,20 @@ static int floppy_open(struct block_device *bdev, fmode_t mode)
 	if (UFDCS->rawcmd == 1)
 		UFDCS->rawcmd = 2;
 
-	if (!(mode & FMODE_NDELAY)) {
-		if (mode & (FMODE_READ|FMODE_WRITE)) {
-			UDRS->last_checked = 0;
-			clear_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags);
-			check_disk_change(bdev);
-			if (test_bit(FD_DISK_CHANGED_BIT, &UDRS->flags))
-				goto out;
-			if (test_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags))
-				goto out;
-		}
-		res = -EROFS;
-		if ((mode & FMODE_WRITE) &&
-		    !test_bit(FD_DISK_WRITABLE_BIT, &UDRS->flags))
-			goto out;
-	}
+	UDRS->last_checked = 0;
+	clear_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags);
+	check_disk_change(bdev);
+	if (test_bit(FD_DISK_CHANGED_BIT, &UDRS->flags))
+		goto out;
+	if (test_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags))
+		goto out;
+
+	res = -EROFS;
+
+	if ((mode & FMODE_WRITE) &&
+			!test_bit(FD_DISK_WRITABLE_BIT, &UDRS->flags))
+		goto out;
+
 	mutex_unlock(&open_lock);
 	mutex_unlock(&floppy_mutex);
 	return 0;
@@ -3748,7 +3752,8 @@ static unsigned int floppy_check_events(struct gendisk *disk,
 		return DISK_EVENT_MEDIA_CHANGE;
 
 	if (time_after(jiffies, UDRS->last_checked + UDP->checkfreq)) {
-		lock_fdc(drive, false);
+		if (lock_fdc(drive))
+			return -EINTR;
 		poll_drive(false, 0);
 		process_fd_request();
 	}
@@ -3847,7 +3852,9 @@ static int floppy_revalidate(struct gendisk *disk)
 			 "VFS: revalidate called on non-open device.\n"))
 			return -EFAULT;
 
-		lock_fdc(drive, false);
+		res = lock_fdc(drive);
+		if (res)
+			return res;
 		cf = (test_bit(FD_DISK_CHANGED_BIT, &UDRS->flags) ||
 		      test_bit(FD_VERIFY_BIT, &UDRS->flags));
 		if (!(cf || test_bit(drive, &fake_change) || drive_no_geom(drive))) {
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
index 8ba1e97..64a7b59 100644
--- a/drivers/block/null_blk.c
+++ b/drivers/block/null_blk.c
@@ -478,7 +478,7 @@ static int null_lnvm_id(struct nvm_dev *dev, struct nvm_id *id)
 	id->ver_id = 0x1;
 	id->vmnt = 0;
 	id->cgrps = 1;
-	id->cap = 0x3;
+	id->cap = 0x2;
 	id->dom = 0x1;
 
 	id->ppaf.blk_offset = 0;
@@ -707,9 +707,7 @@ static int null_add_dev(void)
 	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, nullb->q);
 	queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, nullb->q);
 
-
 	mutex_lock(&lock);
-	list_add_tail(&nullb->list, &nullb_list);
 	nullb->index = nullb_indexes++;
 	mutex_unlock(&lock);
 
@@ -743,6 +741,10 @@ static int null_add_dev(void)
 	strncpy(disk->disk_name, nullb->disk_name, DISK_NAME_LEN);
 
 	add_disk(disk);
+
+	mutex_lock(&lock);
+	list_add_tail(&nullb->list, &nullb_list);
+	mutex_unlock(&lock);
 done:
 	return 0;
 
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 8a8dc91..83eb9e6 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1873,6 +1873,43 @@ again:
 	return err;
 }
 
+static int negotiate_mq(struct blkfront_info *info)
+{
+	unsigned int backend_max_queues = 0;
+	int err;
+	unsigned int i;
+
+	BUG_ON(info->nr_rings);
+
+	/* Check if backend supports multiple queues. */
+	err = xenbus_scanf(XBT_NIL, info->xbdev->otherend,
+			   "multi-queue-max-queues", "%u", &backend_max_queues);
+	if (err < 0)
+		backend_max_queues = 1;
+
+	info->nr_rings = min(backend_max_queues, xen_blkif_max_queues);
+	/* We need at least one ring. */
+	if (!info->nr_rings)
+		info->nr_rings = 1;
+
+	info->rinfo = kzalloc(sizeof(struct blkfront_ring_info) * info->nr_rings, GFP_KERNEL);
+	if (!info->rinfo) {
+		xenbus_dev_fatal(info->xbdev, -ENOMEM, "allocating ring_info structure");
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < info->nr_rings; i++) {
+		struct blkfront_ring_info *rinfo;
+
+		rinfo = &info->rinfo[i];
+		INIT_LIST_HEAD(&rinfo->indirect_pages);
+		INIT_LIST_HEAD(&rinfo->grants);
+		rinfo->dev_info = info;
+		INIT_WORK(&rinfo->work, blkif_restart_queue);
+		spin_lock_init(&rinfo->ring_lock);
+	}
+	return 0;
+}
 /**
  * Entry point to this code when a new device is created.  Allocate the basic
  * structures and the ring buffer for communication with the backend, and
@@ -1883,9 +1920,7 @@ static int blkfront_probe(struct xenbus_device *dev,
 			  const struct xenbus_device_id *id)
 {
 	int err, vdevice;
-	unsigned int r_index;
 	struct blkfront_info *info;
-	unsigned int backend_max_queues = 0;
 
 	/* FIXME: Use dynamic device id if this is not set. */
 	err = xenbus_scanf(XBT_NIL, dev->nodename,
@@ -1936,33 +1971,10 @@ static int blkfront_probe(struct xenbus_device *dev,
 	}
 
 	info->xbdev = dev;
-	/* Check if backend supports multiple queues. */
-	err = xenbus_scanf(XBT_NIL, info->xbdev->otherend,
-			   "multi-queue-max-queues", "%u", &backend_max_queues);
-	if (err < 0)
-		backend_max_queues = 1;
-
-	info->nr_rings = min(backend_max_queues, xen_blkif_max_queues);
-	/* We need at least one ring. */
-	if (!info->nr_rings)
-		info->nr_rings = 1;
-
-	info->rinfo = kzalloc(sizeof(struct blkfront_ring_info) * info->nr_rings, GFP_KERNEL);
-	if (!info->rinfo) {
-		xenbus_dev_fatal(dev, -ENOMEM, "allocating ring_info structure");
+	err = negotiate_mq(info);
+	if (err) {
 		kfree(info);
-		return -ENOMEM;
-	}
-
-	for (r_index = 0; r_index < info->nr_rings; r_index++) {
-		struct blkfront_ring_info *rinfo;
-
-		rinfo = &info->rinfo[r_index];
-		INIT_LIST_HEAD(&rinfo->indirect_pages);
-		INIT_LIST_HEAD(&rinfo->grants);
-		rinfo->dev_info = info;
-		INIT_WORK(&rinfo->work, blkif_restart_queue);
-		spin_lock_init(&rinfo->ring_lock);
+		return err;
 	}
 
 	mutex_init(&info->mutex);
@@ -2123,12 +2135,16 @@ static int blkif_recover(struct blkfront_info *info)
 static int blkfront_resume(struct xenbus_device *dev)
 {
 	struct blkfront_info *info = dev_get_drvdata(&dev->dev);
-	int err;
+	int err = 0;
 
 	dev_dbg(&dev->dev, "blkfront_resume: %s\n", dev->nodename);
 
 	blkif_free(info, info->connected == BLKIF_STATE_CONNECTED);
 
+	err = negotiate_mq(info);
+	if (err)
+		return err;
+
 	err = talk_to_blkback(dev, info);
 
 	/*
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 240b6cf..be54e53 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -42,7 +42,7 @@
 /*
  * The High Precision Event Timer driver.
  * This driver is closely modelled after the rtc.c driver.
- * http://www.intel.com/hardwaredesign/hpetspec_1.pdf
+ * See HPET spec revision 1.
  */
 #define	HPET_USER_FREQ	(64)
 #define	HPET_DRIFT	(500)
diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index 0129232..678fa97 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -496,12 +496,12 @@ static void pc_set_checksum(void)
 
 #ifdef CONFIG_PROC_FS
 
-static char *floppy_types[] = {
+static const char * const floppy_types[] = {
 	"none", "5.25'' 360k", "5.25'' 1.2M", "3.5'' 720k", "3.5'' 1.44M",
 	"3.5'' 2.88M", "3.5'' 2.88M"
 };
 
-static char *gfx_types[] = {
+static const char * const gfx_types[] = {
 	"EGA, VGA, ... (with BIOS)",
 	"CGA (40 cols)",
 	"CGA (80 cols)",
@@ -602,7 +602,7 @@ static void atari_set_checksum(void)
 
 static struct {
 	unsigned char val;
-	char *name;
+	const char *name;
 } boot_prefs[] = {
 	{ 0x80, "TOS" },
 	{ 0x40, "ASV" },
@@ -611,7 +611,7 @@ static struct {
 	{ 0x00, "unspecified" }
 };
 
-static char *languages[] = {
+static const char * const languages[] = {
 	"English (US)",
 	"German",
 	"French",
@@ -623,7 +623,7 @@ static char *languages[] = {
 	"Swiss (German)"
 };
 
-static char *dateformat[] = {
+static const char * const dateformat[] = {
 	"MM%cDD%cYY",
 	"DD%cMM%cYY",
 	"YY%cMM%cDD",
@@ -634,7 +634,7 @@ static char *dateformat[] = {
 	"7 (undefined)"
 };
 
-static char *colors[] = {
+static const char * const colors[] = {
 	"2", "4", "16", "256", "65536", "??", "??", "??"
 };
 
diff --git a/drivers/char/nwbutton.c b/drivers/char/nwbutton.c
index 76c490f..0e18442 100644
--- a/drivers/char/nwbutton.c
+++ b/drivers/char/nwbutton.c
@@ -129,10 +129,9 @@ static void button_consume_callbacks (int bpcount)
 
 static void button_sequence_finished (unsigned long parameters)
 {
-#ifdef CONFIG_NWBUTTON_REBOOT		/* Reboot using button is enabled */
-	if (button_press_count == reboot_count)
+	if (IS_ENABLED(CONFIG_NWBUTTON_REBOOT) &&
+	    button_press_count == reboot_count)
 		kill_cad_pid(SIGINT, 1);	/* Ask init to reboot us */
-#endif /* CONFIG_NWBUTTON_REBOOT */
 	button_consume_callbacks (button_press_count);
 	bcount = sprintf (button_output_buffer, "%d\n", button_press_count);
 	button_press_count = 0;		/* Reset the button press counter */
diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c
index ae0b42b..d233688 100644
--- a/drivers/char/ppdev.c
+++ b/drivers/char/ppdev.c
@@ -69,12 +69,13 @@
 #include <linux/ppdev.h>
 #include <linux/mutex.h>
 #include <linux/uaccess.h>
+#include <linux/compat.h>
 
 #define PP_VERSION "ppdev: user-space parallel port driver"
 #define CHRDEV "ppdev"
 
 struct pp_struct {
-	struct pardevice * pdev;
+	struct pardevice *pdev;
 	wait_queue_head_t irq_wait;
 	atomic_t irqc;
 	unsigned int flags;
@@ -98,18 +99,26 @@ struct pp_struct {
 #define ROUND_UP(x,y) (((x)+(y)-1)/(y))
 
 static DEFINE_MUTEX(pp_do_mutex);
-static inline void pp_enable_irq (struct pp_struct *pp)
+
+/* define fixed sized ioctl cmd for y2038 migration */
+#define PPGETTIME32	_IOR(PP_IOCTL, 0x95, s32[2])
+#define PPSETTIME32	_IOW(PP_IOCTL, 0x96, s32[2])
+#define PPGETTIME64	_IOR(PP_IOCTL, 0x95, s64[2])
+#define PPSETTIME64	_IOW(PP_IOCTL, 0x96, s64[2])
+
+static inline void pp_enable_irq(struct pp_struct *pp)
 {
 	struct parport *port = pp->pdev->port;
-	port->ops->enable_irq (port);
+
+	port->ops->enable_irq(port);
 }
 
-static ssize_t pp_read (struct file * file, char __user * buf, size_t count,
-			loff_t * ppos)
+static ssize_t pp_read(struct file *file, char __user *buf, size_t count,
+		       loff_t *ppos)
 {
 	unsigned int minor = iminor(file_inode(file));
 	struct pp_struct *pp = file->private_data;
-	char * kbuffer;
+	char *kbuffer;
 	ssize_t bytes_read = 0;
 	struct parport *pport;
 	int mode;
@@ -125,16 +134,15 @@ static ssize_t pp_read (struct file * file, char __user * buf, size_t count,
 		return 0;
 
 	kbuffer = kmalloc(min_t(size_t, count, PP_BUFFER_SIZE), GFP_KERNEL);
-	if (!kbuffer) {
+	if (!kbuffer)
 		return -ENOMEM;
-	}
 	pport = pp->pdev->port;
 	mode = pport->ieee1284.mode & ~(IEEE1284_DEVICEID | IEEE1284_ADDR);
 
-	parport_set_timeout (pp->pdev,
-			     (file->f_flags & O_NONBLOCK) ?
-			     PARPORT_INACTIVITY_O_NONBLOCK :
-			     pp->default_inactivity);
+	parport_set_timeout(pp->pdev,
+			    (file->f_flags & O_NONBLOCK) ?
+			    PARPORT_INACTIVITY_O_NONBLOCK :
+			    pp->default_inactivity);
 
 	while (bytes_read == 0) {
 		ssize_t need = min_t(unsigned long, count, PP_BUFFER_SIZE);
@@ -144,20 +152,17 @@ static ssize_t pp_read (struct file * file, char __user * buf, size_t count,
 			int flags = 0;
 			size_t (*fn)(struct parport *, void *, size_t, int);
 
-			if (pp->flags & PP_W91284PIC) {
+			if (pp->flags & PP_W91284PIC)
 				flags |= PARPORT_W91284PIC;
-			}
-			if (pp->flags & PP_FASTREAD) {
+			if (pp->flags & PP_FASTREAD)
 				flags |= PARPORT_EPP_FAST;
-			}
-			if (pport->ieee1284.mode & IEEE1284_ADDR) {
+			if (pport->ieee1284.mode & IEEE1284_ADDR)
 				fn = pport->ops->epp_read_addr;
-			} else {
+			else
 				fn = pport->ops->epp_read_data;
-			}
 			bytes_read = (*fn)(pport, kbuffer, need, flags);
 		} else {
-			bytes_read = parport_read (pport, kbuffer, need);
+			bytes_read = parport_read(pport, kbuffer, need);
 		}
 
 		if (bytes_read != 0)
@@ -168,7 +173,7 @@ static ssize_t pp_read (struct file * file, char __user * buf, size_t count,
 			break;
 		}
 
-		if (signal_pending (current)) {
+		if (signal_pending(current)) {
 			bytes_read = -ERESTARTSYS;
 			break;
 		}
@@ -176,22 +181,22 @@ static ssize_t pp_read (struct file * file, char __user * buf, size_t count,
 		cond_resched();
 	}
 
-	parport_set_timeout (pp->pdev, pp->default_inactivity);
+	parport_set_timeout(pp->pdev, pp->default_inactivity);
 
-	if (bytes_read > 0 && copy_to_user (buf, kbuffer, bytes_read))
+	if (bytes_read > 0 && copy_to_user(buf, kbuffer, bytes_read))
 		bytes_read = -EFAULT;
 
-	kfree (kbuffer);
-	pp_enable_irq (pp);
+	kfree(kbuffer);
+	pp_enable_irq(pp);
 	return bytes_read;
 }
 
-static ssize_t pp_write (struct file * file, const char __user * buf,
-			 size_t count, loff_t * ppos)
+static ssize_t pp_write(struct file *file, const char __user *buf,
+			size_t count, loff_t *ppos)
 {
 	unsigned int minor = iminor(file_inode(file));
 	struct pp_struct *pp = file->private_data;
-	char * kbuffer;
+	char *kbuffer;
 	ssize_t bytes_written = 0;
 	ssize_t wrote;
 	int mode;
@@ -204,21 +209,21 @@ static ssize_t pp_write (struct file * file, const char __user * buf,
 	}
 
 	kbuffer = kmalloc(min_t(size_t, count, PP_BUFFER_SIZE), GFP_KERNEL);
-	if (!kbuffer) {
+	if (!kbuffer)
 		return -ENOMEM;
-	}
+
 	pport = pp->pdev->port;
 	mode = pport->ieee1284.mode & ~(IEEE1284_DEVICEID | IEEE1284_ADDR);
 
-	parport_set_timeout (pp->pdev,
-			     (file->f_flags & O_NONBLOCK) ?
-			     PARPORT_INACTIVITY_O_NONBLOCK :
-			     pp->default_inactivity);
+	parport_set_timeout(pp->pdev,
+			    (file->f_flags & O_NONBLOCK) ?
+			    PARPORT_INACTIVITY_O_NONBLOCK :
+			    pp->default_inactivity);
 
 	while (bytes_written < count) {
 		ssize_t n = min_t(unsigned long, count - bytes_written, PP_BUFFER_SIZE);
 
-		if (copy_from_user (kbuffer, buf + bytes_written, n)) {
+		if (copy_from_user(kbuffer, buf + bytes_written, n)) {
 			bytes_written = -EFAULT;
 			break;
 		}
@@ -226,20 +231,19 @@ static ssize_t pp_write (struct file * file, const char __user * buf,
 		if ((pp->flags & PP_FASTWRITE) && (mode == IEEE1284_MODE_EPP)) {
 			/* do a fast EPP write */
 			if (pport->ieee1284.mode & IEEE1284_ADDR) {
-				wrote = pport->ops->epp_write_addr (pport,
+				wrote = pport->ops->epp_write_addr(pport,
 					kbuffer, n, PARPORT_EPP_FAST);
 			} else {
-				wrote = pport->ops->epp_write_data (pport,
+				wrote = pport->ops->epp_write_data(pport,
 					kbuffer, n, PARPORT_EPP_FAST);
 			}
 		} else {
-			wrote = parport_write (pp->pdev->port, kbuffer, n);
+			wrote = parport_write(pp->pdev->port, kbuffer, n);
 		}
 
 		if (wrote <= 0) {
-			if (!bytes_written) {
+			if (!bytes_written)
 				bytes_written = wrote;
-			}
 			break;
 		}
 
@@ -251,67 +255,69 @@ static ssize_t pp_write (struct file * file, const char __user * buf,
 			break;
 		}
 
-		if (signal_pending (current))
+		if (signal_pending(current))
 			break;
 
 		cond_resched();
 	}
 
-	parport_set_timeout (pp->pdev, pp->default_inactivity);
+	parport_set_timeout(pp->pdev, pp->default_inactivity);
 
-	kfree (kbuffer);
-	pp_enable_irq (pp);
+	kfree(kbuffer);
+	pp_enable_irq(pp);
 	return bytes_written;
 }
 
-static void pp_irq (void *private)
+static void pp_irq(void *private)
 {
 	struct pp_struct *pp = private;
 
 	if (pp->irqresponse) {
-		parport_write_control (pp->pdev->port, pp->irqctl);
+		parport_write_control(pp->pdev->port, pp->irqctl);
 		pp->irqresponse = 0;
 	}
 
-	atomic_inc (&pp->irqc);
-	wake_up_interruptible (&pp->irq_wait);
+	atomic_inc(&pp->irqc);
+	wake_up_interruptible(&pp->irq_wait);
 }
 
-static int register_device (int minor, struct pp_struct *pp)
+static int register_device(int minor, struct pp_struct *pp)
 {
 	struct parport *port;
-	struct pardevice * pdev = NULL;
+	struct pardevice *pdev = NULL;
 	char *name;
-	int fl;
+	struct pardev_cb ppdev_cb;
 
 	name = kasprintf(GFP_KERNEL, CHRDEV "%x", minor);
 	if (name == NULL)
 		return -ENOMEM;
 
-	port = parport_find_number (minor);
+	port = parport_find_number(minor);
 	if (!port) {
-		printk (KERN_WARNING "%s: no associated port!\n", name);
-		kfree (name);
+		printk(KERN_WARNING "%s: no associated port!\n", name);
+		kfree(name);
 		return -ENXIO;
 	}
 
-	fl = (pp->flags & PP_EXCL) ? PARPORT_FLAG_EXCL : 0;
-	pdev = parport_register_device (port, name, NULL,
-					NULL, pp_irq, fl, pp);
-	parport_put_port (port);
+	memset(&ppdev_cb, 0, sizeof(ppdev_cb));
+	ppdev_cb.irq_func = pp_irq;
+	ppdev_cb.flags = (pp->flags & PP_EXCL) ? PARPORT_FLAG_EXCL : 0;
+	ppdev_cb.private = pp;
+	pdev = parport_register_dev_model(port, name, &ppdev_cb, minor);
+	parport_put_port(port);
 
 	if (!pdev) {
-		printk (KERN_WARNING "%s: failed to register device!\n", name);
-		kfree (name);
+		printk(KERN_WARNING "%s: failed to register device!\n", name);
+		kfree(name);
 		return -ENXIO;
 	}
 
 	pp->pdev = pdev;
-	pr_debug("%s: registered pardevice\n", name);
+	dev_dbg(&pdev->dev, "registered pardevice\n");
 	return 0;
 }
 
-static enum ieee1284_phase init_phase (int mode)
+static enum ieee1284_phase init_phase(int mode)
 {
 	switch (mode & ~(IEEE1284_DEVICEID
 			 | IEEE1284_ADDR)) {
@@ -322,11 +328,27 @@ static enum ieee1284_phase init_phase (int mode)
 	return IEEE1284_PH_FWD_IDLE;
 }
 
+static int pp_set_timeout(struct pardevice *pdev, long tv_sec, int tv_usec)
+{
+	long to_jiffies;
+
+	if ((tv_sec < 0) || (tv_usec < 0))
+		return -EINVAL;
+
+	to_jiffies = usecs_to_jiffies(tv_usec);
+	to_jiffies += tv_sec * HZ;
+	if (to_jiffies <= 0)
+		return -EINVAL;
+
+	pdev->timeout = to_jiffies;
+	return 0;
+}
+
 static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	unsigned int minor = iminor(file_inode(file));
 	struct pp_struct *pp = file->private_data;
-	struct parport * port;
+	struct parport *port;
 	void __user *argp = (void __user *)arg;
 
 	/* First handle the cases that don't take arguments. */
@@ -337,19 +359,19 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		int ret;
 
 		if (pp->flags & PP_CLAIMED) {
-			pr_debug(CHRDEV "%x: you've already got it!\n", minor);
+			dev_dbg(&pp->pdev->dev, "you've already got it!\n");
 			return -EINVAL;
 		}
 
 		/* Deferred device registration. */
 		if (!pp->pdev) {
-			int err = register_device (minor, pp);
-			if (err) {
+			int err = register_device(minor, pp);
+
+			if (err)
 				return err;
-			}
 		}
 
-		ret = parport_claim_or_block (pp->pdev);
+		ret = parport_claim_or_block(pp->pdev);
 		if (ret < 0)
 			return ret;
 
@@ -357,7 +379,7 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
 		/* For interrupt-reporting to work, we need to be
 		 * informed of each interrupt. */
-		pp_enable_irq (pp);
+		pp_enable_irq(pp);
 
 		/* We may need to fix up the state machine. */
 		info = &pp->pdev->port->ieee1284;
@@ -365,15 +387,15 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		pp->saved_state.phase = info->phase;
 		info->mode = pp->state.mode;
 		info->phase = pp->state.phase;
-		pp->default_inactivity = parport_set_timeout (pp->pdev, 0);
-		parport_set_timeout (pp->pdev, pp->default_inactivity);
+		pp->default_inactivity = parport_set_timeout(pp->pdev, 0);
+		parport_set_timeout(pp->pdev, pp->default_inactivity);
 
 		return 0;
 	    }
 	case PPEXCL:
 		if (pp->pdev) {
-			pr_debug(CHRDEV "%x: too late for PPEXCL; "
-				"already registered\n", minor);
+			dev_dbg(&pp->pdev->dev,
+				"too late for PPEXCL; already registered\n");
 			if (pp->flags & PP_EXCL)
 				/* But it's not really an error. */
 				return 0;
@@ -388,11 +410,12 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	case PPSETMODE:
 	    {
 		int mode;
-		if (copy_from_user (&mode, argp, sizeof (mode)))
+
+		if (copy_from_user(&mode, argp, sizeof(mode)))
 			return -EFAULT;
 		/* FIXME: validate mode */
 		pp->state.mode = mode;
-		pp->state.phase = init_phase (mode);
+		pp->state.phase = init_phase(mode);
 
 		if (pp->flags & PP_CLAIMED) {
 			pp->pdev->port->ieee1284.mode = mode;
@@ -405,28 +428,27 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	    {
 		int mode;
 
-		if (pp->flags & PP_CLAIMED) {
+		if (pp->flags & PP_CLAIMED)
 			mode = pp->pdev->port->ieee1284.mode;
-		} else {
+		else
 			mode = pp->state.mode;
-		}
-		if (copy_to_user (argp, &mode, sizeof (mode))) {
+
+		if (copy_to_user(argp, &mode, sizeof(mode)))
 			return -EFAULT;
-		}
 		return 0;
 	    }
 	case PPSETPHASE:
 	    {
 		int phase;
-		if (copy_from_user (&phase, argp, sizeof (phase))) {
+
+		if (copy_from_user(&phase, argp, sizeof(phase)))
 			return -EFAULT;
-		}
+
 		/* FIXME: validate phase */
 		pp->state.phase = phase;
 
-		if (pp->flags & PP_CLAIMED) {
+		if (pp->flags & PP_CLAIMED)
 			pp->pdev->port->ieee1284.phase = phase;
-		}
 
 		return 0;
 	    }
@@ -434,38 +456,34 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	    {
 		int phase;
 
-		if (pp->flags & PP_CLAIMED) {
+		if (pp->flags & PP_CLAIMED)
 			phase = pp->pdev->port->ieee1284.phase;
-		} else {
+		else
 			phase = pp->state.phase;
-		}
-		if (copy_to_user (argp, &phase, sizeof (phase))) {
+		if (copy_to_user(argp, &phase, sizeof(phase)))
 			return -EFAULT;
-		}
 		return 0;
 	    }
 	case PPGETMODES:
 	    {
 		unsigned int modes;
 
-		port = parport_find_number (minor);
+		port = parport_find_number(minor);
 		if (!port)
 			return -ENODEV;
 
 		modes = port->modes;
 		parport_put_port(port);
-		if (copy_to_user (argp, &modes, sizeof (modes))) {
+		if (copy_to_user(argp, &modes, sizeof(modes)))
 			return -EFAULT;
-		}
 		return 0;
 	    }
 	case PPSETFLAGS:
 	    {
 		int uflags;
 
-		if (copy_from_user (&uflags, argp, sizeof (uflags))) {
+		if (copy_from_user(&uflags, argp, sizeof(uflags)))
 			return -EFAULT;
-		}
 		pp->flags &= ~PP_FLAGMASK;
 		pp->flags |= (uflags & PP_FLAGMASK);
 		return 0;
@@ -475,9 +493,8 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		int uflags;
 
 		uflags = pp->flags & PP_FLAGMASK;
-		if (copy_to_user (argp, &uflags, sizeof (uflags))) {
+		if (copy_to_user(argp, &uflags, sizeof(uflags)))
 			return -EFAULT;
-		}
 		return 0;
 	    }
 	}	/* end switch() */
@@ -495,27 +512,28 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		unsigned char reg;
 		unsigned char mask;
 		int mode;
+		s32 time32[2];
+		s64 time64[2];
+		struct timespec64 ts;
 		int ret;
-		struct timeval par_timeout;
-		long to_jiffies;
 
 	case PPRSTATUS:
-		reg = parport_read_status (port);
-		if (copy_to_user (argp, &reg, sizeof (reg)))
+		reg = parport_read_status(port);
+		if (copy_to_user(argp, &reg, sizeof(reg)))
 			return -EFAULT;
 		return 0;
 	case PPRDATA:
-		reg = parport_read_data (port);
-		if (copy_to_user (argp, &reg, sizeof (reg)))
+		reg = parport_read_data(port);
+		if (copy_to_user(argp, &reg, sizeof(reg)))
 			return -EFAULT;
 		return 0;
 	case PPRCONTROL:
-		reg = parport_read_control (port);
-		if (copy_to_user (argp, &reg, sizeof (reg)))
+		reg = parport_read_control(port);
+		if (copy_to_user(argp, &reg, sizeof(reg)))
 			return -EFAULT;
 		return 0;
 	case PPYIELD:
-		parport_yield_blocking (pp->pdev);
+		parport_yield_blocking(pp->pdev);
 		return 0;
 
 	case PPRELEASE:
@@ -525,45 +543,45 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		pp->state.phase = info->phase;
 		info->mode = pp->saved_state.mode;
 		info->phase = pp->saved_state.phase;
-		parport_release (pp->pdev);
+		parport_release(pp->pdev);
 		pp->flags &= ~PP_CLAIMED;
 		return 0;
 
 	case PPWCONTROL:
-		if (copy_from_user (&reg, argp, sizeof (reg)))
+		if (copy_from_user(&reg, argp, sizeof(reg)))
 			return -EFAULT;
-		parport_write_control (port, reg);
+		parport_write_control(port, reg);
 		return 0;
 
 	case PPWDATA:
-		if (copy_from_user (&reg, argp, sizeof (reg)))
+		if (copy_from_user(&reg, argp, sizeof(reg)))
 			return -EFAULT;
-		parport_write_data (port, reg);
+		parport_write_data(port, reg);
 		return 0;
 
 	case PPFCONTROL:
-		if (copy_from_user (&mask, argp,
-				    sizeof (mask)))
+		if (copy_from_user(&mask, argp,
+				   sizeof(mask)))
 			return -EFAULT;
-		if (copy_from_user (&reg, 1 + (unsigned char __user *) arg,
-				    sizeof (reg)))
+		if (copy_from_user(&reg, 1 + (unsigned char __user *) arg,
+				   sizeof(reg)))
 			return -EFAULT;
-		parport_frob_control (port, mask, reg);
+		parport_frob_control(port, mask, reg);
 		return 0;
 
 	case PPDATADIR:
-		if (copy_from_user (&mode, argp, sizeof (mode)))
+		if (copy_from_user(&mode, argp, sizeof(mode)))
 			return -EFAULT;
 		if (mode)
-			port->ops->data_reverse (port);
+			port->ops->data_reverse(port);
 		else
-			port->ops->data_forward (port);
+			port->ops->data_forward(port);
 		return 0;
 
 	case PPNEGOT:
-		if (copy_from_user (&mode, argp, sizeof (mode)))
+		if (copy_from_user(&mode, argp, sizeof(mode)))
 			return -EFAULT;
-		switch ((ret = parport_negotiate (port, mode))) {
+		switch ((ret = parport_negotiate(port, mode))) {
 		case 0: break;
 		case -1: /* handshake failed, peripheral not IEEE 1284 */
 			ret = -EIO;
@@ -572,11 +590,11 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 			ret = -ENXIO;
 			break;
 		}
-		pp_enable_irq (pp);
+		pp_enable_irq(pp);
 		return ret;
 
 	case PPWCTLONIRQ:
-		if (copy_from_user (&reg, argp, sizeof (reg)))
+		if (copy_from_user(&reg, argp, sizeof(reg)))
 			return -EFAULT;
 
 		/* Remember what to set the control lines to, for next
@@ -586,39 +604,50 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		return 0;
 
 	case PPCLRIRQ:
-		ret = atomic_read (&pp->irqc);
-		if (copy_to_user (argp, &ret, sizeof (ret)))
+		ret = atomic_read(&pp->irqc);
+		if (copy_to_user(argp, &ret, sizeof(ret)))
 			return -EFAULT;
-		atomic_sub (ret, &pp->irqc);
+		atomic_sub(ret, &pp->irqc);
 		return 0;
 
-	case PPSETTIME:
-		if (copy_from_user (&par_timeout, argp, sizeof(struct timeval))) {
+	case PPSETTIME32:
+		if (copy_from_user(time32, argp, sizeof(time32)))
 			return -EFAULT;
-		}
-		/* Convert to jiffies, place in pp->pdev->timeout */
-		if ((par_timeout.tv_sec < 0) || (par_timeout.tv_usec < 0)) {
-			return -EINVAL;
-		}
-		to_jiffies = ROUND_UP(par_timeout.tv_usec, 1000000/HZ);
-		to_jiffies += par_timeout.tv_sec * (long)HZ;
-		if (to_jiffies <= 0) {
+
+		return pp_set_timeout(pp->pdev, time32[0], time32[1]);
+
+	case PPSETTIME64:
+		if (copy_from_user(time64, argp, sizeof(time64)))
+			return -EFAULT;
+
+		return pp_set_timeout(pp->pdev, time64[0], time64[1]);
+
+	case PPGETTIME32:
+		jiffies_to_timespec64(pp->pdev->timeout, &ts);
+		time32[0] = ts.tv_sec;
+		time32[1] = ts.tv_nsec / NSEC_PER_USEC;
+		if ((time32[0] < 0) || (time32[1] < 0))
 			return -EINVAL;
-		}
-		pp->pdev->timeout = to_jiffies;
+
+		if (copy_to_user(argp, time32, sizeof(time32)))
+			return -EFAULT;
+
 		return 0;
 
-	case PPGETTIME:
-		to_jiffies = pp->pdev->timeout;
-		memset(&par_timeout, 0, sizeof(par_timeout));
-		par_timeout.tv_sec = to_jiffies / HZ;
-		par_timeout.tv_usec = (to_jiffies % (long)HZ) * (1000000/HZ);
-		if (copy_to_user (argp, &par_timeout, sizeof(struct timeval)))
+	case PPGETTIME64:
+		jiffies_to_timespec64(pp->pdev->timeout, &ts);
+		time64[0] = ts.tv_sec;
+		time64[1] = ts.tv_nsec / NSEC_PER_USEC;
+		if ((time64[0] < 0) || (time64[1] < 0))
+			return -EINVAL;
+
+		if (copy_to_user(argp, time64, sizeof(time64)))
 			return -EFAULT;
+
 		return 0;
 
 	default:
-		pr_debug(CHRDEV "%x: What? (cmd=0x%x)\n", minor, cmd);
+		dev_dbg(&pp->pdev->dev, "What? (cmd=0x%x)\n", cmd);
 		return -EINVAL;
 	}
 
@@ -629,13 +658,22 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 static long pp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	long ret;
+
 	mutex_lock(&pp_do_mutex);
 	ret = pp_do_ioctl(file, cmd, arg);
 	mutex_unlock(&pp_do_mutex);
 	return ret;
 }
 
-static int pp_open (struct inode * inode, struct file * file)
+#ifdef CONFIG_COMPAT
+static long pp_compat_ioctl(struct file *file, unsigned int cmd,
+			    unsigned long arg)
+{
+	return pp_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
+}
+#endif
+
+static int pp_open(struct inode *inode, struct file *file)
 {
 	unsigned int minor = iminor(inode);
 	struct pp_struct *pp;
@@ -643,16 +681,16 @@ static int pp_open (struct inode * inode, struct file * file)
 	if (minor >= PARPORT_MAX)
 		return -ENXIO;
 
-	pp = kmalloc (sizeof (struct pp_struct), GFP_KERNEL);
+	pp = kmalloc(sizeof(struct pp_struct), GFP_KERNEL);
 	if (!pp)
 		return -ENOMEM;
 
 	pp->state.mode = IEEE1284_MODE_COMPAT;
-	pp->state.phase = init_phase (pp->state.mode);
+	pp->state.phase = init_phase(pp->state.mode);
 	pp->flags = 0;
 	pp->irqresponse = 0;
-	atomic_set (&pp->irqc, 0);
-	init_waitqueue_head (&pp->irq_wait);
+	atomic_set(&pp->irqc, 0);
+	init_waitqueue_head(&pp->irq_wait);
 
 	/* Defer the actual device registration until the first claim.
 	 * That way, we know whether or not the driver wants to have
@@ -664,7 +702,7 @@ static int pp_open (struct inode * inode, struct file * file)
 	return 0;
 }
 
-static int pp_release (struct inode * inode, struct file * file)
+static int pp_release(struct inode *inode, struct file *file)
 {
 	unsigned int minor = iminor(inode);
 	struct pp_struct *pp = file->private_data;
@@ -673,10 +711,10 @@ static int pp_release (struct inode * inode, struct file * file)
 	compat_negot = 0;
 	if (!(pp->flags & PP_CLAIMED) && pp->pdev &&
 	    (pp->state.mode != IEEE1284_MODE_COMPAT)) {
-	    	struct ieee1284_info *info;
+		struct ieee1284_info *info;
 
 		/* parport released, but not in compatibility mode */
-		parport_claim_or_block (pp->pdev);
+		parport_claim_or_block(pp->pdev);
 		pp->flags |= PP_CLAIMED;
 		info = &pp->pdev->port->ieee1284;
 		pp->saved_state.mode = info->mode;
@@ -689,9 +727,9 @@ static int pp_release (struct inode * inode, struct file * file)
 		compat_negot = 2;
 	}
 	if (compat_negot) {
-		parport_negotiate (pp->pdev->port, IEEE1284_MODE_COMPAT);
-		pr_debug(CHRDEV "%x: negotiated back to compatibility "
-			"mode because user-space forgot\n", minor);
+		parport_negotiate(pp->pdev->port, IEEE1284_MODE_COMPAT);
+		dev_dbg(&pp->pdev->dev,
+			"negotiated back to compatibility mode because user-space forgot\n");
 	}
 
 	if (pp->flags & PP_CLAIMED) {
@@ -702,7 +740,7 @@ static int pp_release (struct inode * inode, struct file * file)
 		pp->state.phase = info->phase;
 		info->mode = pp->saved_state.mode;
 		info->phase = pp->saved_state.phase;
-		parport_release (pp->pdev);
+		parport_release(pp->pdev);
 		if (compat_negot != 1) {
 			pr_debug(CHRDEV "%x: released pardevice "
 				"because user-space forgot\n", minor);
@@ -711,25 +749,26 @@ static int pp_release (struct inode * inode, struct file * file)
 
 	if (pp->pdev) {
 		const char *name = pp->pdev->name;
-		parport_unregister_device (pp->pdev);
-		kfree (name);
+
+		parport_unregister_device(pp->pdev);
+		kfree(name);
 		pp->pdev = NULL;
 		pr_debug(CHRDEV "%x: unregistered pardevice\n", minor);
 	}
 
-	kfree (pp);
+	kfree(pp);
 
 	return 0;
 }
 
 /* No kernel lock held - fine */
-static unsigned int pp_poll (struct file * file, poll_table * wait)
+static unsigned int pp_poll(struct file *file, poll_table *wait)
 {
 	struct pp_struct *pp = file->private_data;
 	unsigned int mask = 0;
 
-	poll_wait (file, &pp->irq_wait, wait);
-	if (atomic_read (&pp->irqc))
+	poll_wait(file, &pp->irq_wait, wait);
+	if (atomic_read(&pp->irqc))
 		mask |= POLLIN | POLLRDNORM;
 
 	return mask;
@@ -744,6 +783,9 @@ static const struct file_operations pp_fops = {
 	.write		= pp_write,
 	.poll		= pp_poll,
 	.unlocked_ioctl	= pp_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl   = pp_compat_ioctl,
+#endif
 	.open		= pp_open,
 	.release	= pp_release,
 };
@@ -759,19 +801,32 @@ static void pp_detach(struct parport *port)
 	device_destroy(ppdev_class, MKDEV(PP_MAJOR, port->number));
 }
 
+static int pp_probe(struct pardevice *par_dev)
+{
+	struct device_driver *drv = par_dev->dev.driver;
+	int len = strlen(drv->name);
+
+	if (strncmp(par_dev->name, drv->name, len))
+		return -ENODEV;
+
+	return 0;
+}
+
 static struct parport_driver pp_driver = {
 	.name		= CHRDEV,
-	.attach		= pp_attach,
+	.probe		= pp_probe,
+	.match_port	= pp_attach,
 	.detach		= pp_detach,
+	.devmodel	= true,
 };
 
-static int __init ppdev_init (void)
+static int __init ppdev_init(void)
 {
 	int err = 0;
 
-	if (register_chrdev (PP_MAJOR, CHRDEV, &pp_fops)) {
-		printk (KERN_WARNING CHRDEV ": unable to get major %d\n",
-			PP_MAJOR);
+	if (register_chrdev(PP_MAJOR, CHRDEV, &pp_fops)) {
+		printk(KERN_WARNING CHRDEV ": unable to get major %d\n",
+		       PP_MAJOR);
 		return -EIO;
 	}
 	ppdev_class = class_create(THIS_MODULE, CHRDEV);
@@ -781,11 +836,11 @@ static int __init ppdev_init (void)
 	}
 	err = parport_register_driver(&pp_driver);
 	if (err < 0) {
-		printk (KERN_WARNING CHRDEV ": unable to register with parport\n");
+		printk(KERN_WARNING CHRDEV ": unable to register with parport\n");
 		goto out_class;
 	}
 
-	printk (KERN_INFO PP_VERSION "\n");
+	printk(KERN_INFO PP_VERSION "\n");
 	goto out;
 
 out_class:
@@ -796,12 +851,12 @@ out:
 	return err;
 }
 
-static void __exit ppdev_cleanup (void)
+static void __exit ppdev_cleanup(void)
 {
 	/* Clean up all parport stuff */
 	parport_unregister_driver(&pp_driver);
 	class_destroy(ppdev_class);
-	unregister_chrdev (PP_MAJOR, CHRDEV);
+	unregister_chrdev(PP_MAJOR, CHRDEV);
 }
 
 module_init(ppdev_init);
diff --git a/drivers/char/random.c b/drivers/char/random.c
index d0da5d8..b583e53 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1819,6 +1819,28 @@ unsigned int get_random_int(void)
 EXPORT_SYMBOL(get_random_int);
 
 /*
+ * Same as get_random_int(), but returns unsigned long.
+ */
+unsigned long get_random_long(void)
+{
+	__u32 *hash;
+	unsigned long ret;
+
+	if (arch_get_random_long(&ret))
+		return ret;
+
+	hash = get_cpu_var(get_random_int_hash);
+
+	hash[0] += current->pid + jiffies + random_get_entropy();
+	md5_transform(hash, random_int_secret);
+	ret = *(unsigned long *)hash;
+	put_cpu_var(get_random_int_hash);
+
+	return ret;
+}
+EXPORT_SYMBOL(get_random_long);
+
+/*
  * randomize_range() returns a start address such that
  *
  *    [...... <range> .....]
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index 9b9809b..e83b2ad 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -334,10 +334,8 @@ static int __init raw_init(void)
 
 	cdev_init(&raw_cdev, &raw_fops);
 	ret = cdev_add(&raw_cdev, dev, max_raw_minors);
-	if (ret) {
+	if (ret)
 		goto error_region;
-	}
-
 	raw_class = class_create(THIS_MODULE, "raw");
 	if (IS_ERR(raw_class)) {
 		printk(KERN_ERR "Error creating raw class.\n");
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index b038e36..bae4be6 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -43,7 +43,7 @@ obj-$(CONFIG_COMMON_CLK_SI514)		+= clk-si514.o
 obj-$(CONFIG_COMMON_CLK_SI570)		+= clk-si570.o
 obj-$(CONFIG_COMMON_CLK_CDCE925)	+= clk-cdce925.o
 obj-$(CONFIG_ARCH_STM32)		+= clk-stm32f4.o
-obj-$(CONFIG_ARCH_TANGOX)		+= clk-tango4.o
+obj-$(CONFIG_ARCH_TANGO)		+= clk-tango4.o
 obj-$(CONFIG_CLK_TWL6040)		+= clk-twl6040.o
 obj-$(CONFIG_ARCH_U300)			+= clk-u300.o
 obj-$(CONFIG_ARCH_VT8500)		+= clk-vt8500.o
diff --git a/drivers/clk/clk-gpio.c b/drivers/clk/clk-gpio.c
index 19fed65..7b09a26 100644
--- a/drivers/clk/clk-gpio.c
+++ b/drivers/clk/clk-gpio.c
@@ -289,7 +289,7 @@ static void __init of_gpio_clk_setup(struct device_node *node,
 
 	num_parents = of_clk_get_parent_count(node);
 	if (num_parents < 0)
-		return;
+		num_parents = 0;
 
 	data = kzalloc(sizeof(*data), GFP_KERNEL);
 	if (!data)
diff --git a/drivers/clk/clk-scpi.c b/drivers/clk/clk-scpi.c
index cd0f272..89e9ca7 100644
--- a/drivers/clk/clk-scpi.c
+++ b/drivers/clk/clk-scpi.c
@@ -299,7 +299,7 @@ static int scpi_clocks_probe(struct platform_device *pdev)
 	/* Add the virtual cpufreq device */
 	cpufreq_dev = platform_device_register_simple("scpi-cpufreq",
 						      -1, NULL, 0);
-	if (!cpufreq_dev)
+	if (IS_ERR(cpufreq_dev))
 		pr_warn("unable to register cpufreq device");
 
 	return 0;
diff --git a/drivers/clk/mvebu/dove-divider.c b/drivers/clk/mvebu/dove-divider.c
index d5c5bfa..3e0b52d 100644
--- a/drivers/clk/mvebu/dove-divider.c
+++ b/drivers/clk/mvebu/dove-divider.c
@@ -247,7 +247,7 @@ static struct clk_onecell_data dove_divider_data = {
 
 void __init dove_divider_clk_init(struct device_node *np)
 {
-	void *base;
+	void __iomem *base;
 
 	base = of_iomap(np, 0);
 	if (WARN_ON(!base))
diff --git a/drivers/clk/qcom/gcc-apq8084.c b/drivers/clk/qcom/gcc-apq8084.c
index cf73e53..070037a 100644
--- a/drivers/clk/qcom/gcc-apq8084.c
+++ b/drivers/clk/qcom/gcc-apq8084.c
@@ -3587,7 +3587,6 @@ static const struct regmap_config gcc_apq8084_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0x1fc0,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct qcom_cc_desc gcc_apq8084_desc = {
diff --git a/drivers/clk/qcom/gcc-ipq806x.c b/drivers/clk/qcom/gcc-ipq806x.c
index b692ae8..dd5402b 100644
--- a/drivers/clk/qcom/gcc-ipq806x.c
+++ b/drivers/clk/qcom/gcc-ipq806x.c
@@ -3005,7 +3005,6 @@ static const struct regmap_config gcc_ipq806x_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0x3e40,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct qcom_cc_desc gcc_ipq806x_desc = {
diff --git a/drivers/clk/qcom/gcc-msm8660.c b/drivers/clk/qcom/gcc-msm8660.c
index f6a2b14..ad41303 100644
--- a/drivers/clk/qcom/gcc-msm8660.c
+++ b/drivers/clk/qcom/gcc-msm8660.c
@@ -2702,7 +2702,6 @@ static const struct regmap_config gcc_msm8660_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0x363c,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct qcom_cc_desc gcc_msm8660_desc = {
diff --git a/drivers/clk/qcom/gcc-msm8916.c b/drivers/clk/qcom/gcc-msm8916.c
index e3bf09d..8cc9b28 100644
--- a/drivers/clk/qcom/gcc-msm8916.c
+++ b/drivers/clk/qcom/gcc-msm8916.c
@@ -3336,7 +3336,6 @@ static const struct regmap_config gcc_msm8916_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0x80000,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct qcom_cc_desc gcc_msm8916_desc = {
diff --git a/drivers/clk/qcom/gcc-msm8960.c b/drivers/clk/qcom/gcc-msm8960.c
index f31111e..983dd7d 100644
--- a/drivers/clk/qcom/gcc-msm8960.c
+++ b/drivers/clk/qcom/gcc-msm8960.c
@@ -3468,7 +3468,6 @@ static const struct regmap_config gcc_msm8960_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0x3660,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct regmap_config gcc_apq8064_regmap_config = {
@@ -3477,7 +3476,6 @@ static const struct regmap_config gcc_apq8064_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0x3880,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct qcom_cc_desc gcc_msm8960_desc = {
diff --git a/drivers/clk/qcom/gcc-msm8974.c b/drivers/clk/qcom/gcc-msm8974.c
index df164d6..335952d 100644
--- a/drivers/clk/qcom/gcc-msm8974.c
+++ b/drivers/clk/qcom/gcc-msm8974.c
@@ -2680,7 +2680,6 @@ static const struct regmap_config gcc_msm8974_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0x1fc0,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct qcom_cc_desc gcc_msm8974_desc = {
diff --git a/drivers/clk/qcom/lcc-ipq806x.c b/drivers/clk/qcom/lcc-ipq806x.c
index 62e79fa..db3998e 100644
--- a/drivers/clk/qcom/lcc-ipq806x.c
+++ b/drivers/clk/qcom/lcc-ipq806x.c
@@ -419,7 +419,6 @@ static const struct regmap_config lcc_ipq806x_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0xfc,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct qcom_cc_desc lcc_ipq806x_desc = {
diff --git a/drivers/clk/qcom/lcc-msm8960.c b/drivers/clk/qcom/lcc-msm8960.c
index bf95bb0..4fcf9d1 100644
--- a/drivers/clk/qcom/lcc-msm8960.c
+++ b/drivers/clk/qcom/lcc-msm8960.c
@@ -524,7 +524,6 @@ static const struct regmap_config lcc_msm8960_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0xfc,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct qcom_cc_desc lcc_msm8960_desc = {
diff --git a/drivers/clk/qcom/mmcc-apq8084.c b/drivers/clk/qcom/mmcc-apq8084.c
index 1e703fd..30777f9 100644
--- a/drivers/clk/qcom/mmcc-apq8084.c
+++ b/drivers/clk/qcom/mmcc-apq8084.c
@@ -3368,7 +3368,6 @@ static const struct regmap_config mmcc_apq8084_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0x5104,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct qcom_cc_desc mmcc_apq8084_desc = {
diff --git a/drivers/clk/qcom/mmcc-msm8960.c b/drivers/clk/qcom/mmcc-msm8960.c
index d73a048..00e3619 100644
--- a/drivers/clk/qcom/mmcc-msm8960.c
+++ b/drivers/clk/qcom/mmcc-msm8960.c
@@ -3029,7 +3029,6 @@ static const struct regmap_config mmcc_msm8960_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0x334,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct regmap_config mmcc_apq8064_regmap_config = {
@@ -3038,7 +3037,6 @@ static const struct regmap_config mmcc_apq8064_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0x350,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct qcom_cc_desc mmcc_msm8960_desc = {
diff --git a/drivers/clk/qcom/mmcc-msm8974.c b/drivers/clk/qcom/mmcc-msm8974.c
index bbe28ed..9d790bc 100644
--- a/drivers/clk/qcom/mmcc-msm8974.c
+++ b/drivers/clk/qcom/mmcc-msm8974.c
@@ -2594,7 +2594,6 @@ static const struct regmap_config mmcc_msm8974_regmap_config = {
 	.val_bits	= 32,
 	.max_register	= 0x5104,
 	.fast_io	= true,
-	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct qcom_cc_desc mmcc_msm8974_desc = {
diff --git a/drivers/clk/rockchip/clk-rk3036.c b/drivers/clk/rockchip/clk-rk3036.c
index ebce980..bc7fbac 100644
--- a/drivers/clk/rockchip/clk-rk3036.c
+++ b/drivers/clk/rockchip/clk-rk3036.c
@@ -133,7 +133,7 @@ PNAME(mux_spdif_p)	= { "spdif_src", "spdif_frac", "xin12m" };
 PNAME(mux_uart0_p)	= { "uart0_src", "uart0_frac", "xin24m" };
 PNAME(mux_uart1_p)	= { "uart1_src", "uart1_frac", "xin24m" };
 PNAME(mux_uart2_p)	= { "uart2_src", "uart2_frac", "xin24m" };
-PNAME(mux_mac_p)	= { "mac_pll_src", "ext_gmac" };
+PNAME(mux_mac_p)	= { "mac_pll_src", "rmii_clkin" };
 PNAME(mux_dclk_p)	= { "dclk_lcdc", "dclk_cru" };
 
 static struct rockchip_pll_clock rk3036_pll_clks[] __initdata = {
@@ -224,16 +224,16 @@ static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
 			RK2928_CLKGATE_CON(2), 2, GFLAGS),
 
 	COMPOSITE_NODIV(SCLK_TIMER0, "sclk_timer0", mux_timer_p, CLK_IGNORE_UNUSED,
-			RK2928_CLKSEL_CON(2), 4, 1, DFLAGS,
+			RK2928_CLKSEL_CON(2), 4, 1, MFLAGS,
 			RK2928_CLKGATE_CON(1), 0, GFLAGS),
 	COMPOSITE_NODIV(SCLK_TIMER1, "sclk_timer1", mux_timer_p, CLK_IGNORE_UNUSED,
-			RK2928_CLKSEL_CON(2), 5, 1, DFLAGS,
+			RK2928_CLKSEL_CON(2), 5, 1, MFLAGS,
 			RK2928_CLKGATE_CON(1), 1, GFLAGS),
 	COMPOSITE_NODIV(SCLK_TIMER2, "sclk_timer2", mux_timer_p, CLK_IGNORE_UNUSED,
-			RK2928_CLKSEL_CON(2), 6, 1, DFLAGS,
+			RK2928_CLKSEL_CON(2), 6, 1, MFLAGS,
 			RK2928_CLKGATE_CON(2), 4, GFLAGS),
 	COMPOSITE_NODIV(SCLK_TIMER3, "sclk_timer3", mux_timer_p, CLK_IGNORE_UNUSED,
-			RK2928_CLKSEL_CON(2), 7, 1, DFLAGS,
+			RK2928_CLKSEL_CON(2), 7, 1, MFLAGS,
 			RK2928_CLKGATE_CON(2), 5, GFLAGS),
 
 	MUX(0, "uart_pll_clk", mux_pll_src_apll_dpll_gpll_usb480m_p, 0,
@@ -242,11 +242,11 @@ static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
 			RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
 			RK2928_CLKGATE_CON(1), 8, GFLAGS),
 	COMPOSITE_NOMUX(0, "uart1_src", "uart_pll_clk", 0,
-			RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
-			RK2928_CLKGATE_CON(1), 8, GFLAGS),
+			RK2928_CLKSEL_CON(14), 0, 7, DFLAGS,
+			RK2928_CLKGATE_CON(1), 10, GFLAGS),
 	COMPOSITE_NOMUX(0, "uart2_src", "uart_pll_clk", 0,
-			RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
-			RK2928_CLKGATE_CON(1), 8, GFLAGS),
+			RK2928_CLKSEL_CON(15), 0, 7, DFLAGS,
+			RK2928_CLKGATE_CON(1), 12, GFLAGS),
 	COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
 			RK2928_CLKSEL_CON(17), 0,
 			RK2928_CLKGATE_CON(1), 9, GFLAGS,
@@ -279,13 +279,13 @@ static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
 			RK2928_CLKGATE_CON(3), 2, GFLAGS),
 
 	COMPOSITE_NODIV(0, "sclk_sdmmc_src", mux_mmc_src_p, 0,
-			RK2928_CLKSEL_CON(12), 8, 2, DFLAGS,
+			RK2928_CLKSEL_CON(12), 8, 2, MFLAGS,
 			RK2928_CLKGATE_CON(2), 11, GFLAGS),
 	DIV(SCLK_SDMMC, "sclk_sdmmc", "sclk_sdmmc_src", 0,
 			RK2928_CLKSEL_CON(11), 0, 7, DFLAGS),
 
 	COMPOSITE_NODIV(0, "sclk_sdio_src", mux_mmc_src_p, 0,
-			RK2928_CLKSEL_CON(12), 10, 2, DFLAGS,
+			RK2928_CLKSEL_CON(12), 10, 2, MFLAGS,
 			RK2928_CLKGATE_CON(2), 13, GFLAGS),
 	DIV(SCLK_SDIO, "sclk_sdio", "sclk_sdio_src", 0,
 			RK2928_CLKSEL_CON(11), 8, 7, DFLAGS),
@@ -344,12 +344,12 @@ static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
 			RK2928_CLKGATE_CON(10), 5, GFLAGS),
 
 	COMPOSITE_NOGATE(0, "mac_pll_src", mux_pll_src_3plls_p, 0,
-			RK2928_CLKSEL_CON(21), 0, 2, MFLAGS, 4, 5, DFLAGS),
+			RK2928_CLKSEL_CON(21), 0, 2, MFLAGS, 9, 5, DFLAGS),
 	MUX(SCLK_MACREF, "mac_clk_ref", mux_mac_p, CLK_SET_RATE_PARENT,
 			RK2928_CLKSEL_CON(21), 3, 1, MFLAGS),
 
 	COMPOSITE_NOMUX(SCLK_MAC, "mac_clk", "mac_clk_ref", 0,
-			RK2928_CLKSEL_CON(21), 9, 5, DFLAGS,
+			RK2928_CLKSEL_CON(21), 4, 5, DFLAGS,
 			RK2928_CLKGATE_CON(2), 6, GFLAGS),
 
 	MUX(SCLK_HDMI, "dclk_hdmi", mux_dclk_p, 0,
diff --git a/drivers/clk/rockchip/clk-rk3368.c b/drivers/clk/rockchip/clk-rk3368.c
index be0ede5..21f3ea9 100644
--- a/drivers/clk/rockchip/clk-rk3368.c
+++ b/drivers/clk/rockchip/clk-rk3368.c
@@ -780,13 +780,13 @@ static struct rockchip_clk_branch rk3368_clk_branches[] __initdata = {
 	GATE(PCLK_TSADC, "pclk_tsadc", "pclk_peri", 0, RK3368_CLKGATE_CON(20), 0, GFLAGS),
 
 	/* pclk_pd_alive gates */
-	GATE(PCLK_TIMER1, "pclk_timer1", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(14), 8, GFLAGS),
-	GATE(PCLK_TIMER0, "pclk_timer0", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(14), 7, GFLAGS),
-	GATE(0, "pclk_alive_niu", "pclk_pd_alive", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(14), 12, GFLAGS),
-	GATE(PCLK_GRF, "pclk_grf", "pclk_pd_alive", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(14), 11, GFLAGS),
-	GATE(PCLK_GPIO3, "pclk_gpio3", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(14), 3, GFLAGS),
-	GATE(PCLK_GPIO2, "pclk_gpio2", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(14), 2, GFLAGS),
-	GATE(PCLK_GPIO1, "pclk_gpio1", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(14), 1, GFLAGS),
+	GATE(PCLK_TIMER1, "pclk_timer1", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(22), 13, GFLAGS),
+	GATE(PCLK_TIMER0, "pclk_timer0", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(22), 12, GFLAGS),
+	GATE(0, "pclk_alive_niu", "pclk_pd_alive", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(22), 9, GFLAGS),
+	GATE(PCLK_GRF, "pclk_grf", "pclk_pd_alive", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(22), 8, GFLAGS),
+	GATE(PCLK_GPIO3, "pclk_gpio3", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(22), 3, GFLAGS),
+	GATE(PCLK_GPIO2, "pclk_gpio2", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(22), 2, GFLAGS),
+	GATE(PCLK_GPIO1, "pclk_gpio1", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(22), 1, GFLAGS),
 
 	/*
 	 * pclk_vio gates
@@ -796,12 +796,12 @@ static struct rockchip_clk_branch rk3368_clk_branches[] __initdata = {
 	GATE(0, "pclk_dphytx", "hclk_vio", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(14), 8, GFLAGS),
 
 	/* pclk_pd_pmu gates */
-	GATE(PCLK_PMUGRF, "pclk_pmugrf", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(17), 0, GFLAGS),
-	GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_pd_pmu", 0, RK3368_CLKGATE_CON(17), 4, GFLAGS),
-	GATE(PCLK_SGRF, "pclk_sgrf", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(17), 3, GFLAGS),
-	GATE(0, "pclk_pmu_noc", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(17), 2, GFLAGS),
-	GATE(0, "pclk_intmem1", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(17), 1, GFLAGS),
-	GATE(PCLK_PMU, "pclk_pmu", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(17), 2, GFLAGS),
+	GATE(PCLK_PMUGRF, "pclk_pmugrf", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(23), 5, GFLAGS),
+	GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_pd_pmu", 0, RK3368_CLKGATE_CON(23), 4, GFLAGS),
+	GATE(PCLK_SGRF, "pclk_sgrf", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(23), 3, GFLAGS),
+	GATE(0, "pclk_pmu_noc", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(23), 2, GFLAGS),
+	GATE(0, "pclk_intmem1", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(23), 1, GFLAGS),
+	GATE(PCLK_PMU, "pclk_pmu", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(23), 0, GFLAGS),
 
 	/* timer gates */
 	GATE(0, "sclk_timer15", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 11, GFLAGS),
diff --git a/drivers/clk/tegra/clk-emc.c b/drivers/clk/tegra/clk-emc.c
index e1fe8f3..74e7544 100644
--- a/drivers/clk/tegra/clk-emc.c
+++ b/drivers/clk/tegra/clk-emc.c
@@ -450,8 +450,10 @@ static int load_timings_from_dt(struct tegra_clk_emc *tegra,
 		struct emc_timing *timing = tegra->timings + (i++);
 
 		err = load_one_timing_from_dt(tegra, timing, child);
-		if (err)
+		if (err) {
+			of_node_put(child);
 			return err;
+		}
 
 		timing->ram_code = ram_code;
 	}
@@ -499,9 +501,9 @@ struct clk *tegra_clk_register_emc(void __iomem *base, struct device_node *np,
 		 * fuses until the apbmisc driver is loaded.
 		 */
 		err = load_timings_from_dt(tegra, node, node_ram_code);
+		of_node_put(node);
 		if (err)
 			return ERR_PTR(err);
-		of_node_put(node);
 		break;
 	}
 
diff --git a/drivers/clk/tegra/clk-id.h b/drivers/clk/tegra/clk-id.h
index 19ce073..62ea381 100644
--- a/drivers/clk/tegra/clk-id.h
+++ b/drivers/clk/tegra/clk-id.h
@@ -11,6 +11,7 @@ enum clk_id {
 	tegra_clk_afi,
 	tegra_clk_amx,
 	tegra_clk_amx1,
+	tegra_clk_apb2ape,
 	tegra_clk_apbdma,
 	tegra_clk_apbif,
 	tegra_clk_ape,
diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
index a534bfa..6ac3f84 100644
--- a/drivers/clk/tegra/clk-pll.c
+++ b/drivers/clk/tegra/clk-pll.c
@@ -86,15 +86,21 @@
 #define PLLE_SS_DISABLE (PLLE_SS_CNTL_BYPASS_SS | PLLE_SS_CNTL_INTERP_RESET |\
 				PLLE_SS_CNTL_SSC_BYP)
 #define PLLE_SS_MAX_MASK 0x1ff
-#define PLLE_SS_MAX_VAL 0x25
+#define PLLE_SS_MAX_VAL_TEGRA114 0x25
+#define PLLE_SS_MAX_VAL_TEGRA210 0x21
 #define PLLE_SS_INC_MASK (0xff << 16)
 #define PLLE_SS_INC_VAL (0x1 << 16)
 #define PLLE_SS_INCINTRV_MASK (0x3f << 24)
-#define PLLE_SS_INCINTRV_VAL (0x20 << 24)
+#define PLLE_SS_INCINTRV_VAL_TEGRA114 (0x20 << 24)
+#define PLLE_SS_INCINTRV_VAL_TEGRA210 (0x23 << 24)
 #define PLLE_SS_COEFFICIENTS_MASK \
 	(PLLE_SS_MAX_MASK | PLLE_SS_INC_MASK | PLLE_SS_INCINTRV_MASK)
-#define PLLE_SS_COEFFICIENTS_VAL \
-	(PLLE_SS_MAX_VAL | PLLE_SS_INC_VAL | PLLE_SS_INCINTRV_VAL)
+#define PLLE_SS_COEFFICIENTS_VAL_TEGRA114 \
+	(PLLE_SS_MAX_VAL_TEGRA114 | PLLE_SS_INC_VAL |\
+	 PLLE_SS_INCINTRV_VAL_TEGRA114)
+#define PLLE_SS_COEFFICIENTS_VAL_TEGRA210 \
+	(PLLE_SS_MAX_VAL_TEGRA210 | PLLE_SS_INC_VAL |\
+	 PLLE_SS_INCINTRV_VAL_TEGRA210)
 
 #define PLLE_AUX_PLLP_SEL	BIT(2)
 #define PLLE_AUX_USE_LOCKDET	BIT(3)
@@ -880,7 +886,7 @@ static int clk_plle_training(struct tegra_clk_pll *pll)
 static int clk_plle_enable(struct clk_hw *hw)
 {
 	struct tegra_clk_pll *pll = to_clk_pll(hw);
-	unsigned long input_rate = clk_get_rate(clk_get_parent(hw->clk));
+	unsigned long input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
 	struct tegra_clk_pll_freq_table sel;
 	u32 val;
 	int err;
@@ -1378,7 +1384,7 @@ static int clk_plle_tegra114_enable(struct clk_hw *hw)
 	u32 val;
 	int ret;
 	unsigned long flags = 0;
-	unsigned long input_rate = clk_get_rate(clk_get_parent(hw->clk));
+	unsigned long input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
 
 	if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
 		return -EINVAL;
@@ -1401,7 +1407,7 @@ static int clk_plle_tegra114_enable(struct clk_hw *hw)
 	val |= PLLE_MISC_IDDQ_SW_CTRL;
 	val &= ~PLLE_MISC_IDDQ_SW_VALUE;
 	val |= PLLE_MISC_PLLE_PTS;
-	val |= PLLE_MISC_VREG_BG_CTRL_MASK | PLLE_MISC_VREG_CTRL_MASK;
+	val &= ~(PLLE_MISC_VREG_BG_CTRL_MASK | PLLE_MISC_VREG_CTRL_MASK);
 	pll_writel_misc(val, pll);
 	udelay(5);
 
@@ -1428,7 +1434,7 @@ static int clk_plle_tegra114_enable(struct clk_hw *hw)
 	val = pll_readl(PLLE_SS_CTRL, pll);
 	val &= ~(PLLE_SS_CNTL_CENTER | PLLE_SS_CNTL_INVERT);
 	val &= ~PLLE_SS_COEFFICIENTS_MASK;
-	val |= PLLE_SS_COEFFICIENTS_VAL;
+	val |= PLLE_SS_COEFFICIENTS_VAL_TEGRA114;
 	pll_writel(val, PLLE_SS_CTRL, pll);
 	val &= ~(PLLE_SS_CNTL_SSC_BYP | PLLE_SS_CNTL_BYPASS_SS);
 	pll_writel(val, PLLE_SS_CTRL, pll);
@@ -2012,9 +2018,9 @@ static int clk_plle_tegra210_enable(struct clk_hw *hw)
 	struct tegra_clk_pll *pll = to_clk_pll(hw);
 	struct tegra_clk_pll_freq_table sel;
 	u32 val;
-	int ret;
+	int ret = 0;
 	unsigned long flags = 0;
-	unsigned long input_rate = clk_get_rate(clk_get_parent(hw->clk));
+	unsigned long input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
 
 	if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
 		return -EINVAL;
@@ -2022,22 +2028,20 @@ static int clk_plle_tegra210_enable(struct clk_hw *hw)
 	if (pll->lock)
 		spin_lock_irqsave(pll->lock, flags);
 
+	val = pll_readl(pll->params->aux_reg, pll);
+	if (val & PLLE_AUX_SEQ_ENABLE)
+		goto out;
+
 	val = pll_readl_base(pll);
 	val &= ~BIT(30); /* Disable lock override */
 	pll_writel_base(val, pll);
 
-	val = pll_readl(pll->params->aux_reg, pll);
-	val |= PLLE_AUX_ENABLE_SWCTL;
-	val &= ~PLLE_AUX_SEQ_ENABLE;
-	pll_writel(val, pll->params->aux_reg, pll);
-	udelay(1);
-
 	val = pll_readl_misc(pll);
 	val |= PLLE_MISC_LOCK_ENABLE;
 	val |= PLLE_MISC_IDDQ_SW_CTRL;
 	val &= ~PLLE_MISC_IDDQ_SW_VALUE;
 	val |= PLLE_MISC_PLLE_PTS;
-	val |= PLLE_MISC_VREG_BG_CTRL_MASK | PLLE_MISC_VREG_CTRL_MASK;
+	val &= ~(PLLE_MISC_VREG_BG_CTRL_MASK | PLLE_MISC_VREG_CTRL_MASK);
 	pll_writel_misc(val, pll);
 	udelay(5);
 
@@ -2067,7 +2071,7 @@ static int clk_plle_tegra210_enable(struct clk_hw *hw)
 	val = pll_readl(PLLE_SS_CTRL, pll);
 	val &= ~(PLLE_SS_CNTL_CENTER | PLLE_SS_CNTL_INVERT);
 	val &= ~PLLE_SS_COEFFICIENTS_MASK;
-	val |= PLLE_SS_COEFFICIENTS_VAL;
+	val |= PLLE_SS_COEFFICIENTS_VAL_TEGRA210;
 	pll_writel(val, PLLE_SS_CTRL, pll);
 	val &= ~(PLLE_SS_CNTL_SSC_BYP | PLLE_SS_CNTL_BYPASS_SS);
 	pll_writel(val, PLLE_SS_CTRL, pll);
@@ -2104,15 +2108,25 @@ static void clk_plle_tegra210_disable(struct clk_hw *hw)
 	if (pll->lock)
 		spin_lock_irqsave(pll->lock, flags);
 
+	/* If PLLE HW sequencer is enabled, SW should not disable PLLE */
+	val = pll_readl(pll->params->aux_reg, pll);
+	if (val & PLLE_AUX_SEQ_ENABLE)
+		goto out;
+
 	val = pll_readl_base(pll);
 	val &= ~PLLE_BASE_ENABLE;
 	pll_writel_base(val, pll);
 
+	val = pll_readl(pll->params->aux_reg, pll);
+	val |= PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL;
+	pll_writel(val, pll->params->aux_reg, pll);
+
 	val = pll_readl_misc(pll);
 	val |= PLLE_MISC_IDDQ_SW_CTRL | PLLE_MISC_IDDQ_SW_VALUE;
 	pll_writel_misc(val, pll);
 	udelay(1);
 
+out:
 	if (pll->lock)
 		spin_unlock_irqrestore(pll->lock, flags);
 }
diff --git a/drivers/clk/tegra/clk-tegra-periph.c b/drivers/clk/tegra/clk-tegra-periph.c
index 6ad381a..ea2b9cbf 100644
--- a/drivers/clk/tegra/clk-tegra-periph.c
+++ b/drivers/clk/tegra/clk-tegra-periph.c
@@ -773,7 +773,7 @@ static struct tegra_periph_init_data periph_clks[] = {
 	XUSB("xusb_dev_src", mux_clkm_pllp_pllc_pllre, CLK_SOURCE_XUSB_DEV_SRC, 95, TEGRA_PERIPH_ON_APB | TEGRA_PERIPH_NO_RESET, tegra_clk_xusb_dev_src),
 	XUSB("xusb_dev_src", mux_clkm_pllp_pllre, CLK_SOURCE_XUSB_DEV_SRC, 95, TEGRA_PERIPH_ON_APB | TEGRA_PERIPH_NO_RESET, tegra_clk_xusb_dev_src_8),
 	MUX8("dbgapb", mux_pllp_clkm_2, CLK_SOURCE_DBGAPB, 185, TEGRA_PERIPH_NO_RESET, tegra_clk_dbgapb),
-	MUX8("msenc", mux_pllc2_c_c3_pllp_plla1_clkm, CLK_SOURCE_NVENC, 219, 0, tegra_clk_nvenc),
+	MUX8("nvenc", mux_pllc2_c_c3_pllp_plla1_clkm, CLK_SOURCE_NVENC, 219, 0, tegra_clk_nvenc),
 	MUX8("nvdec", mux_pllc2_c_c3_pllp_plla1_clkm, CLK_SOURCE_NVDEC, 194, 0, tegra_clk_nvdec),
 	MUX8("nvjpg", mux_pllc2_c_c3_pllp_plla1_clkm, CLK_SOURCE_NVJPG, 195, 0, tegra_clk_nvjpg),
 	MUX8("ape", mux_plla_pllc4_out0_pllc_pllc4_out1_pllp_pllc4_out2_clkm, CLK_SOURCE_APE, 198, TEGRA_PERIPH_ON_APB, tegra_clk_ape),
@@ -782,7 +782,7 @@ static struct tegra_periph_init_data periph_clks[] = {
 	NODIV("sor1", mux_clkm_sor1_brick_sor1_src, CLK_SOURCE_SOR1, 15, MASK(1), 183, 0, tegra_clk_sor1, &sor1_lock),
 	MUX8("sdmmc_legacy", mux_pllp_out3_clkm_pllp_pllc4, CLK_SOURCE_SDMMC_LEGACY, 193, TEGRA_PERIPH_ON_APB | TEGRA_PERIPH_NO_RESET, tegra_clk_sdmmc_legacy),
 	MUX8("qspi", mux_pllp_pllc_pllc_out1_pllc4_out2_pllc4_out1_clkm_pllc4_out0, CLK_SOURCE_QSPI, 211, TEGRA_PERIPH_ON_APB, tegra_clk_qspi),
-	MUX("vii2c", mux_pllp_pllc_clkm, CLK_SOURCE_VI_I2C, 208, TEGRA_PERIPH_ON_APB, tegra_clk_vi_i2c),
+	I2C("vii2c", mux_pllp_pllc_clkm, CLK_SOURCE_VI_I2C, 208, tegra_clk_vi_i2c),
 	MUX("mipibif", mux_pllp_clkm, CLK_SOURCE_MIPIBIF, 173, TEGRA_PERIPH_ON_APB, tegra_clk_mipibif),
 	MUX("uartape", mux_pllp_pllc_clkm, CLK_SOURCE_UARTAPE, 212, TEGRA_PERIPH_ON_APB | TEGRA_PERIPH_NO_RESET, tegra_clk_uartape),
 	MUX8("tsecb", mux_pllp_pllc2_c_c3_clkm, CLK_SOURCE_TSECB, 206, 0, tegra_clk_tsecb),
@@ -829,6 +829,7 @@ static struct tegra_periph_init_data gate_clks[] = {
 	GATE("xusb_gate", "osc", 143, 0, tegra_clk_xusb_gate, 0),
 	GATE("pll_p_out_cpu", "pll_p", 223, 0, tegra_clk_pll_p_out_cpu, 0),
 	GATE("pll_p_out_adsp", "pll_p", 187, 0, tegra_clk_pll_p_out_adsp, 0),
+	GATE("apb2ape", "clk_m", 107, 0, tegra_clk_apb2ape, 0),
 };
 
 static struct tegra_periph_init_data div_clks[] = {
diff --git a/drivers/clk/tegra/clk-tegra-super-gen4.c b/drivers/clk/tegra/clk-tegra-super-gen4.c
index 4559a20..474de0f 100644
--- a/drivers/clk/tegra/clk-tegra-super-gen4.c
+++ b/drivers/clk/tegra/clk-tegra-super-gen4.c
@@ -67,7 +67,7 @@ static const char *cclk_lp_parents[] = { "clk_m", "pll_c", "clk_32k", "pll_m",
 					 "pll_p", "pll_p_out4", "unused",
 					 "unused", "pll_x", "pll_x_out0" };
 
-const struct tegra_super_gen_info tegra_super_gen_info_gen4 = {
+static const struct tegra_super_gen_info tegra_super_gen_info_gen4 = {
 	.gen = gen4,
 	.sclk_parents = sclk_parents,
 	.cclk_g_parents = cclk_g_parents,
@@ -93,7 +93,7 @@ static const char *cclk_lp_parents_gen5[] = { "clk_m", "unused", "clk_32k", "unu
 					"unused", "unused", "unused", "unused",
 					"dfllCPU_out" };
 
-const struct tegra_super_gen_info tegra_super_gen_info_gen5 = {
+static const struct tegra_super_gen_info tegra_super_gen_info_gen5 = {
 	.gen = gen5,
 	.sclk_parents = sclk_parents_gen5,
 	.cclk_g_parents = cclk_g_parents_gen5,
@@ -171,7 +171,7 @@ static void __init tegra_sclk_init(void __iomem *clk_base,
 	*dt_clk = clk;
 }
 
-void __init tegra_super_clk_init(void __iomem *clk_base,
+static void __init tegra_super_clk_init(void __iomem *clk_base,
 				void __iomem *pmc_base,
 				struct tegra_clk *tegra_clks,
 				struct tegra_clk_pll_params *params,
diff --git a/drivers/clk/tegra/clk-tegra210.c b/drivers/clk/tegra/clk-tegra210.c
index 58514c4..637041f 100644
--- a/drivers/clk/tegra/clk-tegra210.c
+++ b/drivers/clk/tegra/clk-tegra210.c
@@ -59,8 +59,8 @@
 #define PLLC3_MISC3 0x50c
 
 #define PLLM_BASE 0x90
-#define PLLM_MISC0 0x9c
 #define PLLM_MISC1 0x98
+#define PLLM_MISC2 0x9c
 #define PLLP_BASE 0xa0
 #define PLLP_MISC0 0xac
 #define PLLP_MISC1 0x680
@@ -99,7 +99,7 @@
 #define PLLC4_MISC0 0x5a8
 #define PLLC4_OUT 0x5e4
 #define PLLMB_BASE 0x5e8
-#define PLLMB_MISC0 0x5ec
+#define PLLMB_MISC1 0x5ec
 #define PLLA1_BASE 0x6a4
 #define PLLA1_MISC0 0x6a8
 #define PLLA1_MISC1 0x6ac
@@ -243,7 +243,8 @@ static unsigned long tegra210_input_freq[] = {
 };
 
 static const char *mux_pllmcp_clkm[] = {
-	"pll_m", "pll_c", "pll_p", "clk_m", "pll_m_ud", "pll_c2", "pll_c3",
+	"pll_m", "pll_c", "pll_p", "clk_m", "pll_m_ud", "pll_mb", "pll_mb",
+	"pll_p",
 };
 #define mux_pllmcp_clkm_idx NULL
 
@@ -367,12 +368,12 @@ static const char *mux_pllmcp_clkm[] = {
 /* PLLMB */
 #define PLLMB_BASE_LOCK			(1 << 27)
 
-#define PLLMB_MISC0_LOCK_OVERRIDE	(1 << 18)
-#define PLLMB_MISC0_IDDQ		(1 << 17)
-#define PLLMB_MISC0_LOCK_ENABLE		(1 << 16)
+#define PLLMB_MISC1_LOCK_OVERRIDE	(1 << 18)
+#define PLLMB_MISC1_IDDQ		(1 << 17)
+#define PLLMB_MISC1_LOCK_ENABLE		(1 << 16)
 
-#define PLLMB_MISC0_DEFAULT_VALUE	0x00030000
-#define PLLMB_MISC0_WRITE_MASK		0x0007ffff
+#define PLLMB_MISC1_DEFAULT_VALUE	0x00030000
+#define PLLMB_MISC1_WRITE_MASK		0x0007ffff
 
 /* PLLP */
 #define PLLP_BASE_OVERRIDE		(1 << 28)
@@ -457,7 +458,8 @@ static void pllcx_check_defaults(struct tegra_clk_pll_params *params)
 			PLLCX_MISC3_WRITE_MASK);
 }
 
-void tegra210_pllcx_set_defaults(const char *name, struct tegra_clk_pll *pllcx)
+static void tegra210_pllcx_set_defaults(const char *name,
+					struct tegra_clk_pll *pllcx)
 {
 	pllcx->params->defaults_set = true;
 
@@ -482,22 +484,22 @@ void tegra210_pllcx_set_defaults(const char *name, struct tegra_clk_pll *pllcx)
 	udelay(1);
 }
 
-void _pllc_set_defaults(struct tegra_clk_pll *pllcx)
+static void _pllc_set_defaults(struct tegra_clk_pll *pllcx)
 {
 	tegra210_pllcx_set_defaults("PLL_C", pllcx);
 }
 
-void _pllc2_set_defaults(struct tegra_clk_pll *pllcx)
+static void _pllc2_set_defaults(struct tegra_clk_pll *pllcx)
 {
 	tegra210_pllcx_set_defaults("PLL_C2", pllcx);
 }
 
-void _pllc3_set_defaults(struct tegra_clk_pll *pllcx)
+static void _pllc3_set_defaults(struct tegra_clk_pll *pllcx)
 {
 	tegra210_pllcx_set_defaults("PLL_C3", pllcx);
 }
 
-void _plla1_set_defaults(struct tegra_clk_pll *pllcx)
+static void _plla1_set_defaults(struct tegra_clk_pll *pllcx)
 {
 	tegra210_pllcx_set_defaults("PLL_A1", pllcx);
 }
@@ -507,7 +509,7 @@ void _plla1_set_defaults(struct tegra_clk_pll *pllcx)
  * PLL with dynamic ramp and fractional SDM. Dynamic ramp is not used.
  * Fractional SDM is allowed to provide exact audio rates.
  */
-void tegra210_plla_set_defaults(struct tegra_clk_pll *plla)
+static void tegra210_plla_set_defaults(struct tegra_clk_pll *plla)
 {
 	u32 mask;
 	u32 val = readl_relaxed(clk_base + plla->params->base_reg);
@@ -559,7 +561,7 @@ void tegra210_plla_set_defaults(struct tegra_clk_pll *plla)
  * PLLD
  * PLL with fractional SDM.
  */
-void tegra210_plld_set_defaults(struct tegra_clk_pll *plld)
+static void tegra210_plld_set_defaults(struct tegra_clk_pll *plld)
 {
 	u32 val;
 	u32 mask = 0xffff;
@@ -698,7 +700,7 @@ static void plldss_defaults(const char *pll_name, struct tegra_clk_pll *plldss,
 	udelay(1);
 }
 
-void tegra210_plld2_set_defaults(struct tegra_clk_pll *plld2)
+static void tegra210_plld2_set_defaults(struct tegra_clk_pll *plld2)
 {
 	plldss_defaults("PLL_D2", plld2, PLLD2_MISC0_DEFAULT_VALUE,
 			PLLD2_MISC1_CFG_DEFAULT_VALUE,
@@ -706,7 +708,7 @@ void tegra210_plld2_set_defaults(struct tegra_clk_pll *plld2)
 			PLLD2_MISC3_CTRL2_DEFAULT_VALUE);
 }
 
-void tegra210_plldp_set_defaults(struct tegra_clk_pll *plldp)
+static void tegra210_plldp_set_defaults(struct tegra_clk_pll *plldp)
 {
 	plldss_defaults("PLL_DP", plldp, PLLDP_MISC0_DEFAULT_VALUE,
 			PLLDP_MISC1_CFG_DEFAULT_VALUE,
@@ -719,7 +721,7 @@ void tegra210_plldp_set_defaults(struct tegra_clk_pll *plldp)
  * Base and misc0 layout is the same as PLLD2/PLLDP, but no SDM/SSC support.
  * VCO is exposed to the clock tree via fixed 1/3 and 1/5 dividers.
  */
-void tegra210_pllc4_set_defaults(struct tegra_clk_pll *pllc4)
+static void tegra210_pllc4_set_defaults(struct tegra_clk_pll *pllc4)
 {
 	plldss_defaults("PLL_C4", pllc4, PLLC4_MISC0_DEFAULT_VALUE, 0, 0, 0);
 }
@@ -728,7 +730,7 @@ void tegra210_pllc4_set_defaults(struct tegra_clk_pll *pllc4)
  * PLLRE
  * VCO is exposed to the clock tree directly along with post-divider output
  */
-void tegra210_pllre_set_defaults(struct tegra_clk_pll *pllre)
+static void tegra210_pllre_set_defaults(struct tegra_clk_pll *pllre)
 {
 	u32 mask;
 	u32 val = readl_relaxed(clk_base + pllre->params->base_reg);
@@ -780,13 +782,13 @@ static void pllx_get_dyn_steps(struct clk_hw *hw, u32 *step_a, u32 *step_b)
 {
 	unsigned long input_rate;
 
-	if (!IS_ERR_OR_NULL(hw->clk)) {
+	/* cf rate */
+	if (!IS_ERR_OR_NULL(hw->clk))
 		input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
-		/* cf rate */
-		input_rate /= tegra_pll_get_fixed_mdiv(hw, input_rate);
-	} else {
+	else
 		input_rate = 38400000;
-	}
+
+	input_rate /= tegra_pll_get_fixed_mdiv(hw, input_rate);
 
 	switch (input_rate) {
 	case 12000000:
@@ -841,7 +843,7 @@ static void pllx_check_defaults(struct tegra_clk_pll *pll)
 			PLLX_MISC5_WRITE_MASK);
 }
 
-void tegra210_pllx_set_defaults(struct tegra_clk_pll *pllx)
+static void tegra210_pllx_set_defaults(struct tegra_clk_pll *pllx)
 {
 	u32 val;
 	u32 step_a, step_b;
@@ -901,7 +903,7 @@ void tegra210_pllx_set_defaults(struct tegra_clk_pll *pllx)
 }
 
 /* PLLMB */
-void tegra210_pllmb_set_defaults(struct tegra_clk_pll *pllmb)
+static void tegra210_pllmb_set_defaults(struct tegra_clk_pll *pllmb)
 {
 	u32 mask, val = readl_relaxed(clk_base + pllmb->params->base_reg);
 
@@ -914,15 +916,15 @@ void tegra210_pllmb_set_defaults(struct tegra_clk_pll *pllmb)
 		 * PLL is ON: check if defaults already set, then set those
 		 * that can be updated in flight.
 		 */
-		val = PLLMB_MISC0_DEFAULT_VALUE & (~PLLMB_MISC0_IDDQ);
-		mask = PLLMB_MISC0_LOCK_ENABLE | PLLMB_MISC0_LOCK_OVERRIDE;
+		val = PLLMB_MISC1_DEFAULT_VALUE & (~PLLMB_MISC1_IDDQ);
+		mask = PLLMB_MISC1_LOCK_ENABLE | PLLMB_MISC1_LOCK_OVERRIDE;
 		_pll_misc_chk_default(clk_base, pllmb->params, 0, val,
-				~mask & PLLMB_MISC0_WRITE_MASK);
+				~mask & PLLMB_MISC1_WRITE_MASK);
 
 		/* Enable lock detect */
 		val = readl_relaxed(clk_base + pllmb->params->ext_misc_reg[0]);
 		val &= ~mask;
-		val |= PLLMB_MISC0_DEFAULT_VALUE & mask;
+		val |= PLLMB_MISC1_DEFAULT_VALUE & mask;
 		writel_relaxed(val, clk_base + pllmb->params->ext_misc_reg[0]);
 		udelay(1);
 
@@ -930,7 +932,7 @@ void tegra210_pllmb_set_defaults(struct tegra_clk_pll *pllmb)
 	}
 
 	/* set IDDQ, enable lock detect */
-	writel_relaxed(PLLMB_MISC0_DEFAULT_VALUE,
+	writel_relaxed(PLLMB_MISC1_DEFAULT_VALUE,
 			clk_base + pllmb->params->ext_misc_reg[0]);
 	udelay(1);
 }
@@ -960,7 +962,7 @@ static void pllp_check_defaults(struct tegra_clk_pll *pll, bool enabled)
 			~mask & PLLP_MISC1_WRITE_MASK);
 }
 
-void tegra210_pllp_set_defaults(struct tegra_clk_pll *pllp)
+static void tegra210_pllp_set_defaults(struct tegra_clk_pll *pllp)
 {
 	u32 mask;
 	u32 val = readl_relaxed(clk_base + pllp->params->base_reg);
@@ -1022,7 +1024,7 @@ static void pllu_check_defaults(struct tegra_clk_pll *pll, bool hw_control)
 			~mask & PLLU_MISC1_WRITE_MASK);
 }
 
-void tegra210_pllu_set_defaults(struct tegra_clk_pll *pllu)
+static void tegra210_pllu_set_defaults(struct tegra_clk_pll *pllu)
 {
 	u32 val = readl_relaxed(clk_base + pllu->params->base_reg);
 
@@ -1212,8 +1214,9 @@ static void tegra210_clk_pll_set_gain(struct tegra_clk_pll_freq_table *cfg)
 	cfg->m *= PLL_SDM_COEFF;
 }
 
-unsigned long tegra210_clk_adjust_vco_min(struct tegra_clk_pll_params *params,
-					  unsigned long parent_rate)
+static unsigned long
+tegra210_clk_adjust_vco_min(struct tegra_clk_pll_params *params,
+			    unsigned long parent_rate)
 {
 	unsigned long vco_min = params->vco_min;
 
@@ -1386,7 +1389,7 @@ static struct tegra_clk_pll_params pll_c_params = {
 	.mdiv_default = 3,
 	.div_nmp = &pllc_nmp,
 	.freq_table = pll_cx_freq_table,
-	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE,
+	.flags = TEGRA_PLL_USE_LOCK,
 	.set_defaults = _pllc_set_defaults,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
 };
@@ -1425,7 +1428,7 @@ static struct tegra_clk_pll_params pll_c2_params = {
 	.ext_misc_reg[2] = PLLC2_MISC2,
 	.ext_misc_reg[3] = PLLC2_MISC3,
 	.freq_table = pll_cx_freq_table,
-	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE,
+	.flags = TEGRA_PLL_USE_LOCK,
 	.set_defaults = _pllc2_set_defaults,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
 };
@@ -1455,7 +1458,7 @@ static struct tegra_clk_pll_params pll_c3_params = {
 	.ext_misc_reg[2] = PLLC3_MISC2,
 	.ext_misc_reg[3] = PLLC3_MISC3,
 	.freq_table = pll_cx_freq_table,
-	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE,
+	.flags = TEGRA_PLL_USE_LOCK,
 	.set_defaults = _pllc3_set_defaults,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
 };
@@ -1505,7 +1508,6 @@ static struct tegra_clk_pll_params pll_c4_vco_params = {
 	.base_reg = PLLC4_BASE,
 	.misc_reg = PLLC4_MISC0,
 	.lock_mask = PLL_BASE_LOCK,
-	.lock_enable_bit_idx = PLLSS_MISC_LOCK_ENABLE,
 	.lock_delay = 300,
 	.max_p = PLL_QLIN_PDIV_MAX,
 	.ext_misc_reg[0] = PLLC4_MISC0,
@@ -1517,8 +1519,7 @@ static struct tegra_clk_pll_params pll_c4_vco_params = {
 	.div_nmp = &pllss_nmp,
 	.freq_table = pll_c4_vco_freq_table,
 	.set_defaults = tegra210_pllc4_set_defaults,
-	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE |
-		 TEGRA_PLL_VCO_OUT,
+	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_VCO_OUT,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
 };
 
@@ -1559,15 +1560,15 @@ static struct tegra_clk_pll_params pll_m_params = {
 	.vco_min = 800000000,
 	.vco_max = 1866000000,
 	.base_reg = PLLM_BASE,
-	.misc_reg = PLLM_MISC1,
+	.misc_reg = PLLM_MISC2,
 	.lock_mask = PLL_BASE_LOCK,
 	.lock_enable_bit_idx = PLLM_MISC_LOCK_ENABLE,
 	.lock_delay = 300,
-	.iddq_reg = PLLM_MISC0,
+	.iddq_reg = PLLM_MISC2,
 	.iddq_bit_idx = PLLM_IDDQ_BIT,
 	.max_p = PLL_QLIN_PDIV_MAX,
-	.ext_misc_reg[0] = PLLM_MISC0,
-	.ext_misc_reg[0] = PLLM_MISC1,
+	.ext_misc_reg[0] = PLLM_MISC2,
+	.ext_misc_reg[1] = PLLM_MISC1,
 	.round_p_to_pdiv = pll_qlin_p_to_pdiv,
 	.pdiv_tohw = pll_qlin_pdiv_to_hw,
 	.div_nmp = &pllm_nmp,
@@ -1586,19 +1587,18 @@ static struct tegra_clk_pll_params pll_mb_params = {
 	.vco_min = 800000000,
 	.vco_max = 1866000000,
 	.base_reg = PLLMB_BASE,
-	.misc_reg = PLLMB_MISC0,
+	.misc_reg = PLLMB_MISC1,
 	.lock_mask = PLL_BASE_LOCK,
-	.lock_enable_bit_idx = PLLMB_MISC_LOCK_ENABLE,
 	.lock_delay = 300,
-	.iddq_reg = PLLMB_MISC0,
+	.iddq_reg = PLLMB_MISC1,
 	.iddq_bit_idx = PLLMB_IDDQ_BIT,
 	.max_p = PLL_QLIN_PDIV_MAX,
-	.ext_misc_reg[0] = PLLMB_MISC0,
+	.ext_misc_reg[0] = PLLMB_MISC1,
 	.round_p_to_pdiv = pll_qlin_p_to_pdiv,
 	.pdiv_tohw = pll_qlin_pdiv_to_hw,
 	.div_nmp = &pllm_nmp,
 	.freq_table = pll_m_freq_table,
-	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE,
+	.flags = TEGRA_PLL_USE_LOCK,
 	.set_defaults = tegra210_pllmb_set_defaults,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
 };
@@ -1671,7 +1671,6 @@ static struct tegra_clk_pll_params pll_re_vco_params = {
 	.base_reg = PLLRE_BASE,
 	.misc_reg = PLLRE_MISC0,
 	.lock_mask = PLLRE_MISC_LOCK,
-	.lock_enable_bit_idx = PLLRE_MISC_LOCK_ENABLE,
 	.lock_delay = 300,
 	.max_p = PLL_QLIN_PDIV_MAX,
 	.ext_misc_reg[0] = PLLRE_MISC0,
@@ -1681,8 +1680,7 @@ static struct tegra_clk_pll_params pll_re_vco_params = {
 	.pdiv_tohw = pll_qlin_pdiv_to_hw,
 	.div_nmp = &pllre_nmp,
 	.freq_table = pll_re_vco_freq_table,
-	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_LOCK_MISC |
-		 TEGRA_PLL_HAS_LOCK_ENABLE | TEGRA_PLL_VCO_OUT,
+	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_LOCK_MISC | TEGRA_PLL_VCO_OUT,
 	.set_defaults = tegra210_pllre_set_defaults,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
 };
@@ -1712,7 +1710,6 @@ static struct tegra_clk_pll_params pll_p_params = {
 	.base_reg = PLLP_BASE,
 	.misc_reg = PLLP_MISC0,
 	.lock_mask = PLL_BASE_LOCK,
-	.lock_enable_bit_idx = PLLP_MISC_LOCK_ENABLE,
 	.lock_delay = 300,
 	.iddq_reg = PLLP_MISC0,
 	.iddq_bit_idx = PLLXP_IDDQ_BIT,
@@ -1721,8 +1718,7 @@ static struct tegra_clk_pll_params pll_p_params = {
 	.div_nmp = &pllp_nmp,
 	.freq_table = pll_p_freq_table,
 	.fixed_rate = 408000000,
-	.flags = TEGRA_PLL_FIXED | TEGRA_PLL_USE_LOCK |
-		 TEGRA_PLL_HAS_LOCK_ENABLE | TEGRA_PLL_VCO_OUT,
+	.flags = TEGRA_PLL_FIXED | TEGRA_PLL_USE_LOCK | TEGRA_PLL_VCO_OUT,
 	.set_defaults = tegra210_pllp_set_defaults,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
 };
@@ -1750,7 +1746,7 @@ static struct tegra_clk_pll_params pll_a1_params = {
 	.ext_misc_reg[2] = PLLA1_MISC2,
 	.ext_misc_reg[3] = PLLA1_MISC3,
 	.freq_table = pll_cx_freq_table,
-	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE,
+	.flags = TEGRA_PLL_USE_LOCK,
 	.set_defaults = _plla1_set_defaults,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
 };
@@ -1787,7 +1783,6 @@ static struct tegra_clk_pll_params pll_a_params = {
 	.base_reg = PLLA_BASE,
 	.misc_reg = PLLA_MISC0,
 	.lock_mask = PLL_BASE_LOCK,
-	.lock_enable_bit_idx = PLLA_MISC_LOCK_ENABLE,
 	.lock_delay = 300,
 	.round_p_to_pdiv = pll_qlin_p_to_pdiv,
 	.pdiv_tohw = pll_qlin_pdiv_to_hw,
@@ -1802,8 +1797,7 @@ static struct tegra_clk_pll_params pll_a_params = {
 	.ext_misc_reg[1] = PLLA_MISC1,
 	.ext_misc_reg[2] = PLLA_MISC2,
 	.freq_table = pll_a_freq_table,
-	.flags = TEGRA_PLL_USE_LOCK | TEGRA_MDIV_NEW |
-		 TEGRA_PLL_HAS_LOCK_ENABLE,
+	.flags = TEGRA_PLL_USE_LOCK | TEGRA_MDIV_NEW,
 	.set_defaults = tegra210_plla_set_defaults,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
 	.set_gain = tegra210_clk_pll_set_gain,
@@ -1836,7 +1830,6 @@ static struct tegra_clk_pll_params pll_d_params = {
 	.base_reg = PLLD_BASE,
 	.misc_reg = PLLD_MISC0,
 	.lock_mask = PLL_BASE_LOCK,
-	.lock_enable_bit_idx = PLLD_MISC_LOCK_ENABLE,
 	.lock_delay = 1000,
 	.iddq_reg = PLLD_MISC0,
 	.iddq_bit_idx = PLLD_IDDQ_BIT,
@@ -1850,7 +1843,7 @@ static struct tegra_clk_pll_params pll_d_params = {
 	.ext_misc_reg[0] = PLLD_MISC0,
 	.ext_misc_reg[1] = PLLD_MISC1,
 	.freq_table = pll_d_freq_table,
-	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE,
+	.flags = TEGRA_PLL_USE_LOCK,
 	.mdiv_default = 1,
 	.set_defaults = tegra210_plld_set_defaults,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
@@ -1876,7 +1869,6 @@ static struct tegra_clk_pll_params pll_d2_params = {
 	.base_reg = PLLD2_BASE,
 	.misc_reg = PLLD2_MISC0,
 	.lock_mask = PLL_BASE_LOCK,
-	.lock_enable_bit_idx = PLLSS_MISC_LOCK_ENABLE,
 	.lock_delay = 300,
 	.iddq_reg = PLLD2_BASE,
 	.iddq_bit_idx = PLLSS_IDDQ_BIT,
@@ -1897,7 +1889,7 @@ static struct tegra_clk_pll_params pll_d2_params = {
 	.mdiv_default = 1,
 	.freq_table = tegra210_pll_d2_freq_table,
 	.set_defaults = tegra210_plld2_set_defaults,
-	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE,
+	.flags = TEGRA_PLL_USE_LOCK,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
 	.set_gain = tegra210_clk_pll_set_gain,
 	.adjust_vco = tegra210_clk_adjust_vco_min,
@@ -1920,7 +1912,6 @@ static struct tegra_clk_pll_params pll_dp_params = {
 	.base_reg = PLLDP_BASE,
 	.misc_reg = PLLDP_MISC,
 	.lock_mask = PLL_BASE_LOCK,
-	.lock_enable_bit_idx = PLLSS_MISC_LOCK_ENABLE,
 	.lock_delay = 300,
 	.iddq_reg = PLLDP_BASE,
 	.iddq_bit_idx = PLLSS_IDDQ_BIT,
@@ -1941,7 +1932,7 @@ static struct tegra_clk_pll_params pll_dp_params = {
 	.mdiv_default = 1,
 	.freq_table = pll_dp_freq_table,
 	.set_defaults = tegra210_plldp_set_defaults,
-	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE,
+	.flags = TEGRA_PLL_USE_LOCK,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
 	.set_gain = tegra210_clk_pll_set_gain,
 	.adjust_vco = tegra210_clk_adjust_vco_min,
@@ -1973,7 +1964,6 @@ static struct tegra_clk_pll_params pll_u_vco_params = {
 	.base_reg = PLLU_BASE,
 	.misc_reg = PLLU_MISC0,
 	.lock_mask = PLL_BASE_LOCK,
-	.lock_enable_bit_idx = PLLU_MISC_LOCK_ENABLE,
 	.lock_delay = 1000,
 	.iddq_reg = PLLU_MISC0,
 	.iddq_bit_idx = PLLU_IDDQ_BIT,
@@ -1983,8 +1973,7 @@ static struct tegra_clk_pll_params pll_u_vco_params = {
 	.pdiv_tohw = pll_qlin_pdiv_to_hw,
 	.div_nmp = &pllu_nmp,
 	.freq_table = pll_u_freq_table,
-	.flags = TEGRA_PLLU | TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE |
-		 TEGRA_PLL_VCO_OUT,
+	.flags = TEGRA_PLLU | TEGRA_PLL_USE_LOCK | TEGRA_PLL_VCO_OUT,
 	.set_defaults = tegra210_pllu_set_defaults,
 	.calc_rate = tegra210_pll_fixed_mdiv_cfg,
 };
@@ -2218,6 +2207,7 @@ static struct tegra_clk tegra210_clks[tegra_clk_max] __initdata = {
 	[tegra_clk_pll_c4_out1] = { .dt_id = TEGRA210_CLK_PLL_C4_OUT1, .present = true },
 	[tegra_clk_pll_c4_out2] = { .dt_id = TEGRA210_CLK_PLL_C4_OUT2, .present = true },
 	[tegra_clk_pll_c4_out3] = { .dt_id = TEGRA210_CLK_PLL_C4_OUT3, .present = true },
+	[tegra_clk_apb2ape] = { .dt_id = TEGRA210_CLK_APB2APE, .present = true },
 };
 
 static struct tegra_devclk devclks[] __initdata = {
@@ -2519,7 +2509,7 @@ static void __init tegra210_pll_init(void __iomem *clk_base,
 
 	/* PLLU_VCO */
 	val = readl(clk_base + pll_u_vco_params.base_reg);
-	val &= ~BIT(24); /* disable PLLU_OVERRIDE */
+	val &= ~PLLU_BASE_OVERRIDE; /* disable PLLU_OVERRIDE */
 	writel(val, clk_base + pll_u_vco_params.base_reg);
 
 	clk = tegra_clk_register_pllre("pll_u_vco", "pll_ref", clk_base, pmc,
@@ -2738,8 +2728,6 @@ static struct tegra_clk_init_table init_table[] __initdata = {
 	{ TEGRA210_CLK_DFLL_REF, TEGRA210_CLK_PLL_P, 51000000, 1 },
 	{ TEGRA210_CLK_SBC4, TEGRA210_CLK_PLL_P, 12000000, 1 },
 	{ TEGRA210_CLK_PLL_RE_VCO, TEGRA210_CLK_CLK_MAX, 672000000, 1 },
-	{ TEGRA210_CLK_PLL_U_OUT1, TEGRA210_CLK_CLK_MAX, 48000000, 1 },
-	{ TEGRA210_CLK_PLL_U_OUT2, TEGRA210_CLK_CLK_MAX, 60000000, 1 },
 	{ TEGRA210_CLK_XUSB_GATE, TEGRA210_CLK_CLK_MAX, 0, 1 },
 	{ TEGRA210_CLK_XUSB_SS_SRC, TEGRA210_CLK_PLL_U_480M, 120000000, 0 },
 	{ TEGRA210_CLK_XUSB_FS_SRC, TEGRA210_CLK_PLL_U_48M, 48000000, 0 },
diff --git a/drivers/clk/ti/dpll3xxx.c b/drivers/clk/ti/dpll3xxx.c
index 1c30038..cc73929 100644
--- a/drivers/clk/ti/dpll3xxx.c
+++ b/drivers/clk/ti/dpll3xxx.c
@@ -460,7 +460,8 @@ int omap3_noncore_dpll_enable(struct clk_hw *hw)
 
 	parent = clk_hw_get_parent(hw);
 
-	if (clk_hw_get_rate(hw) == clk_get_rate(dd->clk_bypass)) {
+	if (clk_hw_get_rate(hw) ==
+	    clk_hw_get_rate(__clk_get_hw(dd->clk_bypass))) {
 		WARN_ON(parent != __clk_get_hw(dd->clk_bypass));
 		r = _omap3_noncore_dpll_bypass(clk);
 	} else {
diff --git a/drivers/clk/versatile/clk-icst.c b/drivers/clk/versatile/clk-icst.c
index e62f8cb..3bca438 100644
--- a/drivers/clk/versatile/clk-icst.c
+++ b/drivers/clk/versatile/clk-icst.c
@@ -78,6 +78,9 @@ static int vco_set(struct clk_icst *icst, struct icst_vco vco)
 	ret = regmap_read(icst->map, icst->vcoreg_off, &val);
 	if (ret)
 		return ret;
+
+	/* Mask the 18 bits used by the VCO */
+	val &= ~0x7ffff;
 	val |= vco.v | (vco.r << 9) | (vco.s << 16);
 
 	/* This magic unlocks the VCO so it can be controlled */
diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c
index 20de861..8bf9914 100644
--- a/drivers/crypto/atmel-sha.c
+++ b/drivers/crypto/atmel-sha.c
@@ -782,7 +782,7 @@ static void atmel_sha_finish_req(struct ahash_request *req, int err)
 	dd->flags &= ~(SHA_FLAGS_BUSY | SHA_FLAGS_FINAL | SHA_FLAGS_CPU |
 			SHA_FLAGS_DMA_READY | SHA_FLAGS_OUTPUT_READY);
 
-	clk_disable_unprepare(dd->iclk);
+	clk_disable(dd->iclk);
 
 	if (req->base.complete)
 		req->base.complete(&req->base, err);
@@ -795,7 +795,7 @@ static int atmel_sha_hw_init(struct atmel_sha_dev *dd)
 {
 	int err;
 
-	err = clk_prepare_enable(dd->iclk);
+	err = clk_enable(dd->iclk);
 	if (err)
 		return err;
 
@@ -822,7 +822,7 @@ static void atmel_sha_hw_version_init(struct atmel_sha_dev *dd)
 	dev_info(dd->dev,
 			"version: 0x%x\n", dd->hw_version);
 
-	clk_disable_unprepare(dd->iclk);
+	clk_disable(dd->iclk);
 }
 
 static int atmel_sha_handle_queue(struct atmel_sha_dev *dd,
@@ -1410,6 +1410,10 @@ static int atmel_sha_probe(struct platform_device *pdev)
 		goto res_err;
 	}
 
+	err = clk_prepare(sha_dd->iclk);
+	if (err)
+		goto res_err;
+
 	atmel_sha_hw_version_init(sha_dd);
 
 	atmel_sha_get_cap(sha_dd);
@@ -1421,12 +1425,12 @@ static int atmel_sha_probe(struct platform_device *pdev)
 			if (IS_ERR(pdata)) {
 				dev_err(&pdev->dev, "platform data not available\n");
 				err = PTR_ERR(pdata);
-				goto res_err;
+				goto iclk_unprepare;
 			}
 		}
 		if (!pdata->dma_slave) {
 			err = -ENXIO;
-			goto res_err;
+			goto iclk_unprepare;
 		}
 		err = atmel_sha_dma_init(sha_dd, pdata);
 		if (err)
@@ -1457,6 +1461,8 @@ err_algs:
 	if (sha_dd->caps.has_dma)
 		atmel_sha_dma_cleanup(sha_dd);
 err_sha_dma:
+iclk_unprepare:
+	clk_unprepare(sha_dd->iclk);
 res_err:
 	tasklet_kill(&sha_dd->done_task);
 sha_dd_err:
@@ -1483,12 +1489,7 @@ static int atmel_sha_remove(struct platform_device *pdev)
 	if (sha_dd->caps.has_dma)
 		atmel_sha_dma_cleanup(sha_dd);
 
-	iounmap(sha_dd->io_base);
-
-	clk_put(sha_dd->iclk);
-
-	if (sha_dd->irq >= 0)
-		free_irq(sha_dd->irq, sha_dd);
+	clk_unprepare(sha_dd->iclk);
 
 	return 0;
 }
diff --git a/drivers/crypto/marvell/cesa.c b/drivers/crypto/marvell/cesa.c
index 0643e33..c0656e7 100644
--- a/drivers/crypto/marvell/cesa.c
+++ b/drivers/crypto/marvell/cesa.c
@@ -306,7 +306,7 @@ static int mv_cesa_dev_dma_init(struct mv_cesa_dev *cesa)
 		return -ENOMEM;
 
 	dma->padding_pool = dmam_pool_create("cesa_padding", dev, 72, 1, 0);
-	if (!dma->cache_pool)
+	if (!dma->padding_pool)
 		return -ENOMEM;
 
 	cesa->dma = dma;
diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
index 848b93e..fe9dce0 100644
--- a/drivers/devfreq/tegra-devfreq.c
+++ b/drivers/devfreq/tegra-devfreq.c
@@ -500,6 +500,8 @@ static int tegra_devfreq_target(struct device *dev, unsigned long *freq,
 	clk_set_min_rate(tegra->emc_clock, rate);
 	clk_set_rate(tegra->emc_clock, 0);
 
+	*freq = rate;
+
 	return 0;
 }
 
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index e893318..5ad0ec1 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -156,7 +156,6 @@ static void dwc_initialize(struct dw_dma_chan *dwc)
 
 	/* Enable interrupts */
 	channel_set_bit(dw, MASK.XFER, dwc->mask);
-	channel_set_bit(dw, MASK.BLOCK, dwc->mask);
 	channel_set_bit(dw, MASK.ERROR, dwc->mask);
 
 	dwc->initialized = true;
@@ -588,6 +587,9 @@ static void dwc_handle_cyclic(struct dw_dma *dw, struct dw_dma_chan *dwc,
 
 		spin_unlock_irqrestore(&dwc->lock, flags);
 	}
+
+	/* Re-enable interrupts */
+	channel_set_bit(dw, MASK.BLOCK, dwc->mask);
 }
 
 /* ------------------------------------------------------------------------- */
@@ -618,11 +620,8 @@ static void dw_dma_tasklet(unsigned long data)
 			dwc_scan_descriptors(dw, dwc);
 	}
 
-	/*
-	 * Re-enable interrupts.
-	 */
+	/* Re-enable interrupts */
 	channel_set_bit(dw, MASK.XFER, dw->all_chan_mask);
-	channel_set_bit(dw, MASK.BLOCK, dw->all_chan_mask);
 	channel_set_bit(dw, MASK.ERROR, dw->all_chan_mask);
 }
 
@@ -1261,6 +1260,7 @@ static void dwc_free_chan_resources(struct dma_chan *chan)
 int dw_dma_cyclic_start(struct dma_chan *chan)
 {
 	struct dw_dma_chan	*dwc = to_dw_dma_chan(chan);
+	struct dw_dma		*dw = to_dw_dma(chan->device);
 	unsigned long		flags;
 
 	if (!test_bit(DW_DMA_IS_CYCLIC, &dwc->flags)) {
@@ -1269,7 +1269,12 @@ int dw_dma_cyclic_start(struct dma_chan *chan)
 	}
 
 	spin_lock_irqsave(&dwc->lock, flags);
+
+	/* Enable interrupts to perform cyclic transfer */
+	channel_set_bit(dw, MASK.BLOCK, dwc->mask);
+
 	dwc_dostart(dwc, dwc->cdesc->desc[0]);
+
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
 	return 0;
diff --git a/drivers/dma/dw/pci.c b/drivers/dma/dw/pci.c
index 4c30fdd..358f968 100644
--- a/drivers/dma/dw/pci.c
+++ b/drivers/dma/dw/pci.c
@@ -108,6 +108,10 @@ static const struct pci_device_id dw_pci_id_table[] = {
 
 	/* Haswell */
 	{ PCI_VDEVICE(INTEL, 0x9c60) },
+
+	/* Broadwell */
+	{ PCI_VDEVICE(INTEL, 0x9ce0) },
+
 	{ }
 };
 MODULE_DEVICE_TABLE(pci, dw_pci_id_table);
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index d92d655..e3d7fcb 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -113,6 +113,9 @@
 #define GET_NUM_REGN(x)		((x & 0x300000) >> 20) /* bits 20-21 */
 #define CHMAP_EXIST		BIT(24)
 
+/* CCSTAT register */
+#define EDMA_CCSTAT_ACTV	BIT(4)
+
 /*
  * Max of 20 segments per channel to conserve PaRAM slots
  * Also note that MAX_NR_SG should be atleast the no.of periods
@@ -1680,9 +1683,20 @@ static void edma_issue_pending(struct dma_chan *chan)
 	spin_unlock_irqrestore(&echan->vchan.lock, flags);
 }
 
+/*
+ * This limit exists to avoid a possible infinite loop when waiting for proof
+ * that a particular transfer is completed. This limit can be hit if there
+ * are large bursts to/from slow devices or the CPU is never able to catch
+ * the DMA hardware idle. On an AM335x transfering 48 bytes from the UART
+ * RX-FIFO, as many as 55 loops have been seen.
+ */
+#define EDMA_MAX_TR_WAIT_LOOPS 1000
+
 static u32 edma_residue(struct edma_desc *edesc)
 {
 	bool dst = edesc->direction == DMA_DEV_TO_MEM;
+	int loop_count = EDMA_MAX_TR_WAIT_LOOPS;
+	struct edma_chan *echan = edesc->echan;
 	struct edma_pset *pset = edesc->pset;
 	dma_addr_t done, pos;
 	int i;
@@ -1691,7 +1705,32 @@ static u32 edma_residue(struct edma_desc *edesc)
 	 * We always read the dst/src position from the first RamPar
 	 * pset. That's the one which is active now.
 	 */
-	pos = edma_get_position(edesc->echan->ecc, edesc->echan->slot[0], dst);
+	pos = edma_get_position(echan->ecc, echan->slot[0], dst);
+
+	/*
+	 * "pos" may represent a transfer request that is still being
+	 * processed by the EDMACC or EDMATC. We will busy wait until
+	 * any one of the situations occurs:
+	 *   1. the DMA hardware is idle
+	 *   2. a new transfer request is setup
+	 *   3. we hit the loop limit
+	 */
+	while (edma_read(echan->ecc, EDMA_CCSTAT) & EDMA_CCSTAT_ACTV) {
+		/* check if a new transfer request is setup */
+		if (edma_get_position(echan->ecc,
+				      echan->slot[0], dst) != pos) {
+			break;
+		}
+
+		if (!--loop_count) {
+			dev_dbg_ratelimited(echan->vchan.chan.device->dev,
+				"%s: timeout waiting for PaRAM update\n",
+				__func__);
+			break;
+		}
+
+		cpu_relax();
+	}
 
 	/*
 	 * Cyclic is simple. Just subtract pset[0].addr from pos.
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 1d5df2e..21539d5 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -861,32 +861,42 @@ void ioat_timer_event(unsigned long data)
 			return;
 	}
 
+	spin_lock_bh(&ioat_chan->cleanup_lock);
+
+	/* handle the no-actives case */
+	if (!ioat_ring_active(ioat_chan)) {
+		spin_lock_bh(&ioat_chan->prep_lock);
+		check_active(ioat_chan);
+		spin_unlock_bh(&ioat_chan->prep_lock);
+		spin_unlock_bh(&ioat_chan->cleanup_lock);
+		return;
+	}
+
 	/* if we haven't made progress and we have already
 	 * acknowledged a pending completion once, then be more
 	 * forceful with a restart
 	 */
-	spin_lock_bh(&ioat_chan->cleanup_lock);
 	if (ioat_cleanup_preamble(ioat_chan, &phys_complete))
 		__cleanup(ioat_chan, phys_complete);
 	else if (test_bit(IOAT_COMPLETION_ACK, &ioat_chan->state)) {
+		u32 chanerr;
+
+		chanerr = readl(ioat_chan->reg_base + IOAT_CHANERR_OFFSET);
+		dev_warn(to_dev(ioat_chan), "Restarting channel...\n");
+		dev_warn(to_dev(ioat_chan), "CHANSTS: %#Lx CHANERR: %#x\n",
+			 status, chanerr);
+		dev_warn(to_dev(ioat_chan), "Active descriptors: %d\n",
+			 ioat_ring_active(ioat_chan));
+
 		spin_lock_bh(&ioat_chan->prep_lock);
 		ioat_restart_channel(ioat_chan);
 		spin_unlock_bh(&ioat_chan->prep_lock);
 		spin_unlock_bh(&ioat_chan->cleanup_lock);
 		return;
-	} else {
+	} else
 		set_bit(IOAT_COMPLETION_ACK, &ioat_chan->state);
-		mod_timer(&ioat_chan->timer, jiffies + COMPLETION_TIMEOUT);
-	}
-
 
-	if (ioat_ring_active(ioat_chan))
-		mod_timer(&ioat_chan->timer, jiffies + COMPLETION_TIMEOUT);
-	else {
-		spin_lock_bh(&ioat_chan->prep_lock);
-		check_active(ioat_chan);
-		spin_unlock_bh(&ioat_chan->prep_lock);
-	}
+	mod_timer(&ioat_chan->timer, jiffies + COMPLETION_TIMEOUT);
 	spin_unlock_bh(&ioat_chan->cleanup_lock);
 }
 
diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
index 756eca8..10e6774 100644
--- a/drivers/firmware/efi/efivars.c
+++ b/drivers/firmware/efi/efivars.c
@@ -221,7 +221,7 @@ sanity_check(struct efi_variable *var, efi_char16_t *name, efi_guid_t vendor,
 	}
 
 	if ((attributes & ~EFI_VARIABLE_MASK) != 0 ||
-	    efivar_validate(name, data, size) == false) {
+	    efivar_validate(vendor, name, data, size) == false) {
 		printk(KERN_ERR "efivars: Malformed variable content\n");
 		return -EINVAL;
 	}
@@ -447,7 +447,8 @@ static ssize_t efivar_create(struct file *filp, struct kobject *kobj,
 	}
 
 	if ((attributes & ~EFI_VARIABLE_MASK) != 0 ||
-	    efivar_validate(name, data, size) == false) {
+	    efivar_validate(new_var->VendorGuid, name, data,
+			    size) == false) {
 		printk(KERN_ERR "efivars: Malformed variable content\n");
 		return -EINVAL;
 	}
@@ -540,38 +541,30 @@ static ssize_t efivar_delete(struct file *filp, struct kobject *kobj,
 static int
 efivar_create_sysfs_entry(struct efivar_entry *new_var)
 {
-	int i, short_name_size;
+	int short_name_size;
 	char *short_name;
-	unsigned long variable_name_size;
-	efi_char16_t *variable_name;
+	unsigned long utf8_name_size;
+	efi_char16_t *variable_name = new_var->var.VariableName;
 	int ret;
 
-	variable_name = new_var->var.VariableName;
-	variable_name_size = ucs2_strlen(variable_name) * sizeof(efi_char16_t);
-
 	/*
-	 * Length of the variable bytes in ASCII, plus the '-' separator,
+	 * Length of the variable bytes in UTF8, plus the '-' separator,
 	 * plus the GUID, plus trailing NUL
 	 */
-	short_name_size = variable_name_size / sizeof(efi_char16_t)
-				+ 1 + EFI_VARIABLE_GUID_LEN + 1;
-
-	short_name = kzalloc(short_name_size, GFP_KERNEL);
+	utf8_name_size = ucs2_utf8size(variable_name);
+	short_name_size = utf8_name_size + 1 + EFI_VARIABLE_GUID_LEN + 1;
 
+	short_name = kmalloc(short_name_size, GFP_KERNEL);
 	if (!short_name)
 		return -ENOMEM;
 
-	/* Convert Unicode to normal chars (assume top bits are 0),
-	   ala UTF-8 */
-	for (i=0; i < (int)(variable_name_size / sizeof(efi_char16_t)); i++) {
-		short_name[i] = variable_name[i] & 0xFF;
-	}
+	ucs2_as_utf8(short_name, variable_name, short_name_size);
+
 	/* This is ugly, but necessary to separate one vendor's
 	   private variables from another's.         */
-
-	*(short_name + strlen(short_name)) = '-';
+	short_name[utf8_name_size] = '-';
 	efi_guid_to_str(&new_var->var.VendorGuid,
-			 short_name + strlen(short_name));
+			 short_name + utf8_name_size + 1);
 
 	new_var->kobj.kset = efivars_kset;
 
diff --git a/drivers/firmware/efi/vars.c b/drivers/firmware/efi/vars.c
index 70a0fb1..7f2ea21 100644
--- a/drivers/firmware/efi/vars.c
+++ b/drivers/firmware/efi/vars.c
@@ -165,67 +165,133 @@ validate_ascii_string(efi_char16_t *var_name, int match, u8 *buffer,
 }
 
 struct variable_validate {
+	efi_guid_t vendor;
 	char *name;
 	bool (*validate)(efi_char16_t *var_name, int match, u8 *data,
 			 unsigned long len);
 };
 
+/*
+ * This is the list of variables we need to validate, as well as the
+ * whitelist for what we think is safe not to default to immutable.
+ *
+ * If it has a validate() method that's not NULL, it'll go into the
+ * validation routine.  If not, it is assumed valid, but still used for
+ * whitelisting.
+ *
+ * Note that it's sorted by {vendor,name}, but globbed names must come after
+ * any other name with the same prefix.
+ */
 static const struct variable_validate variable_validate[] = {
-	{ "BootNext", validate_uint16 },
-	{ "BootOrder", validate_boot_order },
-	{ "DriverOrder", validate_boot_order },
-	{ "Boot*", validate_load_option },
-	{ "Driver*", validate_load_option },
-	{ "ConIn", validate_device_path },
-	{ "ConInDev", validate_device_path },
-	{ "ConOut", validate_device_path },
-	{ "ConOutDev", validate_device_path },
-	{ "ErrOut", validate_device_path },
-	{ "ErrOutDev", validate_device_path },
-	{ "Timeout", validate_uint16 },
-	{ "Lang", validate_ascii_string },
-	{ "PlatformLang", validate_ascii_string },
-	{ "", NULL },
+	{ EFI_GLOBAL_VARIABLE_GUID, "BootNext", validate_uint16 },
+	{ EFI_GLOBAL_VARIABLE_GUID, "BootOrder", validate_boot_order },
+	{ EFI_GLOBAL_VARIABLE_GUID, "Boot*", validate_load_option },
+	{ EFI_GLOBAL_VARIABLE_GUID, "DriverOrder", validate_boot_order },
+	{ EFI_GLOBAL_VARIABLE_GUID, "Driver*", validate_load_option },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ConIn", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ConInDev", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ConOut", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ConOutDev", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ErrOut", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ErrOutDev", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "Lang", validate_ascii_string },
+	{ EFI_GLOBAL_VARIABLE_GUID, "OsIndications", NULL },
+	{ EFI_GLOBAL_VARIABLE_GUID, "PlatformLang", validate_ascii_string },
+	{ EFI_GLOBAL_VARIABLE_GUID, "Timeout", validate_uint16 },
+	{ LINUX_EFI_CRASH_GUID, "*", NULL },
+	{ NULL_GUID, "", NULL },
 };
 
+static bool
+variable_matches(const char *var_name, size_t len, const char *match_name,
+		 int *match)
+{
+	for (*match = 0; ; (*match)++) {
+		char c = match_name[*match];
+		char u = var_name[*match];
+
+		/* Wildcard in the matching name means we've matched */
+		if (c == '*')
+			return true;
+
+		/* Case sensitive match */
+		if (!c && *match == len)
+			return true;
+
+		if (c != u)
+			return false;
+
+		if (!c)
+			return true;
+	}
+	return true;
+}
+
 bool
-efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long len)
+efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
+		unsigned long data_size)
 {
 	int i;
-	u16 *unicode_name = var_name;
+	unsigned long utf8_size;
+	u8 *utf8_name;
 
-	for (i = 0; variable_validate[i].validate != NULL; i++) {
-		const char *name = variable_validate[i].name;
-		int match;
+	utf8_size = ucs2_utf8size(var_name);
+	utf8_name = kmalloc(utf8_size + 1, GFP_KERNEL);
+	if (!utf8_name)
+		return false;
 
-		for (match = 0; ; match++) {
-			char c = name[match];
-			u16 u = unicode_name[match];
+	ucs2_as_utf8(utf8_name, var_name, utf8_size);
+	utf8_name[utf8_size] = '\0';
 
-			/* All special variables are plain ascii */
-			if (u > 127)
-				return true;
+	for (i = 0; variable_validate[i].name[0] != '\0'; i++) {
+		const char *name = variable_validate[i].name;
+		int match = 0;
 
-			/* Wildcard in the matching name means we've matched */
-			if (c == '*')
-				return variable_validate[i].validate(var_name,
-							     match, data, len);
+		if (efi_guidcmp(vendor, variable_validate[i].vendor))
+			continue;
 
-			/* Case sensitive match */
-			if (c != u)
+		if (variable_matches(utf8_name, utf8_size+1, name, &match)) {
+			if (variable_validate[i].validate == NULL)
 				break;
-
-			/* Reached the end of the string while matching */
-			if (!c)
-				return variable_validate[i].validate(var_name,
-							     match, data, len);
+			kfree(utf8_name);
+			return variable_validate[i].validate(var_name, match,
+							     data, data_size);
 		}
 	}
-
+	kfree(utf8_name);
 	return true;
 }
 EXPORT_SYMBOL_GPL(efivar_validate);
 
+bool
+efivar_variable_is_removable(efi_guid_t vendor, const char *var_name,
+			     size_t len)
+{
+	int i;
+	bool found = false;
+	int match = 0;
+
+	/*
+	 * Check if our variable is in the validated variables list
+	 */
+	for (i = 0; variable_validate[i].name[0] != '\0'; i++) {
+		if (efi_guidcmp(variable_validate[i].vendor, vendor))
+			continue;
+
+		if (variable_matches(var_name, len,
+				     variable_validate[i].name, &match)) {
+			found = true;
+			break;
+		}
+	}
+
+	/*
+	 * If it's in our list, it is removable.
+	 */
+	return found;
+}
+EXPORT_SYMBOL_GPL(efivar_variable_is_removable);
+
 static efi_status_t
 check_var_size(u32 attributes, unsigned long size)
 {
@@ -852,7 +918,7 @@ int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes,
 
 	*set = false;
 
-	if (efivar_validate(name, data, *size) == false)
+	if (efivar_validate(*vendor, name, data, *size) == false)
 		return -EINVAL;
 
 	/*
diff --git a/drivers/gpio/gpio-altera.c b/drivers/gpio/gpio-altera.c
index 2aeaebd..3f87a03 100644
--- a/drivers/gpio/gpio-altera.c
+++ b/drivers/gpio/gpio-altera.c
@@ -312,8 +312,8 @@ static int altera_gpio_probe(struct platform_device *pdev)
 		handle_simple_irq, IRQ_TYPE_NONE);
 
 	if (ret) {
-		dev_info(&pdev->dev, "could not add irqchip\n");
-		return ret;
+		dev_err(&pdev->dev, "could not add irqchip\n");
+		goto teardown;
 	}
 
 	gpiochip_set_chained_irqchip(&altera_gc->mmchip.gc,
@@ -326,6 +326,7 @@ static int altera_gpio_probe(struct platform_device *pdev)
 skip_irq:
 	return 0;
 teardown:
+	of_mm_gpiochip_remove(&altera_gc->mmchip);
 	pr_err("%s: registration failed with status %d\n",
 		node->full_name, ret);
 
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index ec58f42..cd007a6 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -195,7 +195,7 @@ static int davinci_gpio_of_xlate(struct gpio_chip *gc,
 static int davinci_gpio_probe(struct platform_device *pdev)
 {
 	int i, base;
-	unsigned ngpio;
+	unsigned ngpio, nbank;
 	struct davinci_gpio_controller *chips;
 	struct davinci_gpio_platform_data *pdata;
 	struct davinci_gpio_regs __iomem *regs;
@@ -224,8 +224,9 @@ static int davinci_gpio_probe(struct platform_device *pdev)
 	if (WARN_ON(ARCH_NR_GPIOS < ngpio))
 		ngpio = ARCH_NR_GPIOS;
 
+	nbank = DIV_ROUND_UP(ngpio, 32);
 	chips = devm_kzalloc(dev,
-			     ngpio * sizeof(struct davinci_gpio_controller),
+			     nbank * sizeof(struct davinci_gpio_controller),
 			     GFP_KERNEL);
 	if (!chips)
 		return -ENOMEM;
@@ -511,7 +512,7 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
 			return irq;
 		}
 
-		irq_domain = irq_domain_add_legacy(NULL, ngpio, irq, 0,
+		irq_domain = irq_domain_add_legacy(dev->of_node, ngpio, irq, 0,
 							&davinci_gpio_irq_ops,
 							chips);
 		if (!irq_domain) {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 82edf95..5e7770f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -87,6 +87,8 @@ extern int amdgpu_sched_jobs;
 extern int amdgpu_sched_hw_submission;
 extern int amdgpu_enable_semaphores;
 extern int amdgpu_powerplay;
+extern unsigned amdgpu_pcie_gen_cap;
+extern unsigned amdgpu_pcie_lane_cap;
 
 #define AMDGPU_WAIT_IDLE_TIMEOUT_IN_MS	        3000
 #define AMDGPU_MAX_USEC_TIMEOUT			100000	/* 100 ms */
@@ -132,47 +134,6 @@ extern int amdgpu_powerplay;
 #define AMDGPU_RESET_VCE			(1 << 13)
 #define AMDGPU_RESET_VCE1			(1 << 14)
 
-/* CG block flags */
-#define AMDGPU_CG_BLOCK_GFX			(1 << 0)
-#define AMDGPU_CG_BLOCK_MC			(1 << 1)
-#define AMDGPU_CG_BLOCK_SDMA			(1 << 2)
-#define AMDGPU_CG_BLOCK_UVD			(1 << 3)
-#define AMDGPU_CG_BLOCK_VCE			(1 << 4)
-#define AMDGPU_CG_BLOCK_HDP			(1 << 5)
-#define AMDGPU_CG_BLOCK_BIF			(1 << 6)
-
-/* CG flags */
-#define AMDGPU_CG_SUPPORT_GFX_MGCG		(1 << 0)
-#define AMDGPU_CG_SUPPORT_GFX_MGLS		(1 << 1)
-#define AMDGPU_CG_SUPPORT_GFX_CGCG		(1 << 2)
-#define AMDGPU_CG_SUPPORT_GFX_CGLS		(1 << 3)
-#define AMDGPU_CG_SUPPORT_GFX_CGTS		(1 << 4)
-#define AMDGPU_CG_SUPPORT_GFX_CGTS_LS		(1 << 5)
-#define AMDGPU_CG_SUPPORT_GFX_CP_LS		(1 << 6)
-#define AMDGPU_CG_SUPPORT_GFX_RLC_LS		(1 << 7)
-#define AMDGPU_CG_SUPPORT_MC_LS			(1 << 8)
-#define AMDGPU_CG_SUPPORT_MC_MGCG		(1 << 9)
-#define AMDGPU_CG_SUPPORT_SDMA_LS		(1 << 10)
-#define AMDGPU_CG_SUPPORT_SDMA_MGCG		(1 << 11)
-#define AMDGPU_CG_SUPPORT_BIF_LS		(1 << 12)
-#define AMDGPU_CG_SUPPORT_UVD_MGCG		(1 << 13)
-#define AMDGPU_CG_SUPPORT_VCE_MGCG		(1 << 14)
-#define AMDGPU_CG_SUPPORT_HDP_LS		(1 << 15)
-#define AMDGPU_CG_SUPPORT_HDP_MGCG		(1 << 16)
-
-/* PG flags */
-#define AMDGPU_PG_SUPPORT_GFX_PG		(1 << 0)
-#define AMDGPU_PG_SUPPORT_GFX_SMG		(1 << 1)
-#define AMDGPU_PG_SUPPORT_GFX_DMG		(1 << 2)
-#define AMDGPU_PG_SUPPORT_UVD			(1 << 3)
-#define AMDGPU_PG_SUPPORT_VCE			(1 << 4)
-#define AMDGPU_PG_SUPPORT_CP			(1 << 5)
-#define AMDGPU_PG_SUPPORT_GDS			(1 << 6)
-#define AMDGPU_PG_SUPPORT_RLC_SMU_HS		(1 << 7)
-#define AMDGPU_PG_SUPPORT_SDMA			(1 << 8)
-#define AMDGPU_PG_SUPPORT_ACP			(1 << 9)
-#define AMDGPU_PG_SUPPORT_SAMU			(1 << 10)
-
 /* GFX current status */
 #define AMDGPU_GFX_NORMAL_MODE			0x00000000L
 #define AMDGPU_GFX_SAFE_MODE			0x00000001L
@@ -606,8 +567,6 @@ struct amdgpu_sa_manager {
 	uint32_t		align;
 };
 
-struct amdgpu_sa_bo;
-
 /* sub-allocation buffer */
 struct amdgpu_sa_bo {
 	struct list_head		olist;
@@ -2360,6 +2319,8 @@ bool amdgpu_ttm_bo_is_amdgpu_bo(struct ttm_buffer_object *bo);
 int amdgpu_ttm_tt_set_userptr(struct ttm_tt *ttm, uint64_t addr,
 				     uint32_t flags);
 bool amdgpu_ttm_tt_has_userptr(struct ttm_tt *ttm);
+bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start,
+				  unsigned long end);
 bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm);
 uint32_t amdgpu_ttm_tt_pte_flags(struct amdgpu_device *adev, struct ttm_tt *ttm,
 				 struct ttm_mem_reg *mem);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index a081dda..7a4b101 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -795,6 +795,12 @@ static int amdgpu_cgs_query_system_info(void *cgs_device,
 	case CGS_SYSTEM_INFO_PCIE_MLW:
 		sys_info->value = adev->pm.pcie_mlw_mask;
 		break;
+	case CGS_SYSTEM_INFO_CG_FLAGS:
+		sys_info->value = adev->cg_flags;
+		break;
+	case CGS_SYSTEM_INFO_PG_FLAGS:
+		sys_info->value = adev->pg_flags;
+		break;
 	default:
 		return -ENODEV;
 	}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 6553146..51bfc11 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1795,15 +1795,20 @@ int amdgpu_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
 	}
 
 	/* post card */
-	amdgpu_atom_asic_init(adev->mode_info.atom_context);
+	if (!amdgpu_card_posted(adev))
+		amdgpu_atom_asic_init(adev->mode_info.atom_context);
 
 	r = amdgpu_resume(adev);
+	if (r)
+		DRM_ERROR("amdgpu_resume failed (%d).\n", r);
 
 	amdgpu_fence_driver_resume(adev);
 
-	r = amdgpu_ib_ring_tests(adev);
-	if (r)
-		DRM_ERROR("ib ring test failed (%d).\n", r);
+	if (resume) {
+		r = amdgpu_ib_ring_tests(adev);
+		if (r)
+			DRM_ERROR("ib ring test failed (%d).\n", r);
+	}
 
 	r = amdgpu_late_init(adev);
 	if (r)
@@ -1933,80 +1938,97 @@ retry:
 	return r;
 }
 
+#define AMDGPU_DEFAULT_PCIE_GEN_MASK 0x30007  /* gen: chipset 1/2, asic 1/2/3 */
+#define AMDGPU_DEFAULT_PCIE_MLW_MASK 0x2f0000 /* 1/2/4/8/16 lanes */
+
 void amdgpu_get_pcie_info(struct amdgpu_device *adev)
 {
 	u32 mask;
 	int ret;
 
-	if (pci_is_root_bus(adev->pdev->bus))
-		return;
+	if (amdgpu_pcie_gen_cap)
+		adev->pm.pcie_gen_mask = amdgpu_pcie_gen_cap;
 
-	if (amdgpu_pcie_gen2 == 0)
-		return;
+	if (amdgpu_pcie_lane_cap)
+		adev->pm.pcie_mlw_mask = amdgpu_pcie_lane_cap;
 
-	if (adev->flags & AMD_IS_APU)
+	/* covers APUs as well */
+	if (pci_is_root_bus(adev->pdev->bus)) {
+		if (adev->pm.pcie_gen_mask == 0)
+			adev->pm.pcie_gen_mask = AMDGPU_DEFAULT_PCIE_GEN_MASK;
+		if (adev->pm.pcie_mlw_mask == 0)
+			adev->pm.pcie_mlw_mask = AMDGPU_DEFAULT_PCIE_MLW_MASK;
 		return;
+	}
 
-	ret = drm_pcie_get_speed_cap_mask(adev->ddev, &mask);
-	if (!ret) {
-		adev->pm.pcie_gen_mask = (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
-					  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
-					  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3);
-
-		if (mask & DRM_PCIE_SPEED_25)
-			adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1;
-		if (mask & DRM_PCIE_SPEED_50)
-			adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2;
-		if (mask & DRM_PCIE_SPEED_80)
-			adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3;
-	}
-	ret = drm_pcie_get_max_link_width(adev->ddev, &mask);
-	if (!ret) {
-		switch (mask) {
-		case 32:
-			adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X32 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
-			break;
-		case 16:
-			adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
-			break;
-		case 12:
-			adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
-			break;
-		case 8:
-			adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
-			break;
-		case 4:
-			adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
-			break;
-		case 2:
-			adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
-						  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
-			break;
-		case 1:
-			adev->pm.pcie_mlw_mask = CAIL_PCIE_LINK_WIDTH_SUPPORT_X1;
-			break;
-		default:
-			break;
+	if (adev->pm.pcie_gen_mask == 0) {
+		ret = drm_pcie_get_speed_cap_mask(adev->ddev, &mask);
+		if (!ret) {
+			adev->pm.pcie_gen_mask = (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
+						  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
+						  CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3);
+
+			if (mask & DRM_PCIE_SPEED_25)
+				adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1;
+			if (mask & DRM_PCIE_SPEED_50)
+				adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2;
+			if (mask & DRM_PCIE_SPEED_80)
+				adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3;
+		} else {
+			adev->pm.pcie_gen_mask = AMDGPU_DEFAULT_PCIE_GEN_MASK;
+		}
+	}
+	if (adev->pm.pcie_mlw_mask == 0) {
+		ret = drm_pcie_get_max_link_width(adev->ddev, &mask);
+		if (!ret) {
+			switch (mask) {
+			case 32:
+				adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X32 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
+				break;
+			case 16:
+				adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
+				break;
+			case 12:
+				adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
+				break;
+			case 8:
+				adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
+				break;
+			case 4:
+				adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
+				break;
+			case 2:
+				adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
+							  CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
+				break;
+			case 1:
+				adev->pm.pcie_mlw_mask = CAIL_PCIE_LINK_WIDTH_SUPPORT_X1;
+				break;
+			default:
+				break;
+			}
+		} else {
+			adev->pm.pcie_mlw_mask = AMDGPU_DEFAULT_PCIE_MLW_MASK;
 		}
 	}
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index acd066d0..8297bc3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
@@ -72,8 +72,8 @@ static void amdgpu_flip_work_func(struct work_struct *__work)
 
 	struct drm_crtc *crtc = &amdgpuCrtc->base;
 	unsigned long flags;
-	unsigned i;
-	int vpos, hpos, stat, min_udelay;
+	unsigned i, repcnt = 4;
+	int vpos, hpos, stat, min_udelay = 0;
 	struct drm_vblank_crtc *vblank = &crtc->dev->vblank[work->crtc_id];
 
 	amdgpu_flip_wait_fence(adev, &work->excl);
@@ -96,7 +96,7 @@ static void amdgpu_flip_work_func(struct work_struct *__work)
 	 * In practice this won't execute very often unless on very fast
 	 * machines because the time window for this to happen is very small.
 	 */
-	for (;;) {
+	while (amdgpuCrtc->enabled && repcnt--) {
 		/* GET_DISTANCE_TO_VBLANKSTART returns distance to real vblank
 		 * start in hpos, and to the "fudged earlier" vblank start in
 		 * vpos.
@@ -114,10 +114,22 @@ static void amdgpu_flip_work_func(struct work_struct *__work)
 		/* Sleep at least until estimated real start of hw vblank */
 		spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
 		min_udelay = (-hpos + 1) * max(vblank->linedur_ns / 1000, 5);
+		if (min_udelay > vblank->framedur_ns / 2000) {
+			/* Don't wait ridiculously long - something is wrong */
+			repcnt = 0;
+			break;
+		}
 		usleep_range(min_udelay, 2 * min_udelay);
 		spin_lock_irqsave(&crtc->dev->event_lock, flags);
 	};
 
+	if (!repcnt)
+		DRM_DEBUG_DRIVER("Delay problem on crtc %d: min_udelay %d, "
+				 "framedur %d, linedur %d, stat %d, vpos %d, "
+				 "hpos %d\n", work->crtc_id, min_udelay,
+				 vblank->framedur_ns / 1000,
+				 vblank->linedur_ns / 1000, stat, vpos, hpos);
+
 	/* do the flip (mmio) */
 	adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base);
 	/* set the flip status */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 9c1af89..9ef1db8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -83,6 +83,8 @@ int amdgpu_sched_jobs = 32;
 int amdgpu_sched_hw_submission = 2;
 int amdgpu_enable_semaphores = 0;
 int amdgpu_powerplay = -1;
+unsigned amdgpu_pcie_gen_cap = 0;
+unsigned amdgpu_pcie_lane_cap = 0;
 
 MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
 module_param_named(vramlimit, amdgpu_vram_limit, int, 0600);
@@ -170,6 +172,12 @@ MODULE_PARM_DESC(powerplay, "Powerplay component (1 = enable, 0 = disable, -1 =
 module_param_named(powerplay, amdgpu_powerplay, int, 0444);
 #endif
 
+MODULE_PARM_DESC(pcie_gen_cap, "PCIE Gen Caps (0: autodetect (default))");
+module_param_named(pcie_gen_cap, amdgpu_pcie_gen_cap, uint, 0444);
+
+MODULE_PARM_DESC(pcie_lane_cap, "PCIE Lane Caps (0: autodetect (default))");
+module_param_named(pcie_lane_cap, amdgpu_pcie_lane_cap, uint, 0444);
+
 static struct pci_device_id pciidlist[] = {
 #ifdef CONFIG_DRM_AMDGPU_CIK
 	/* Kaveri */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 7380f78..d20c2a8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -596,7 +596,8 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
 		break;
 	}
 	ttm_eu_backoff_reservation(&ticket, &list);
-	if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE))
+	if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE) &&
+	    !amdgpu_vm_debug)
 		amdgpu_gem_va_update_vm(adev, bo_va, args->operation);
 
 	drm_gem_object_unreference_unlocked(gobj);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
index b1969f2..d4e2780 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
@@ -142,7 +142,8 @@ static void amdgpu_mn_invalidate_range_start(struct mmu_notifier *mn,
 
 		list_for_each_entry(bo, &node->bos, mn_list) {
 
-			if (!bo->tbo.ttm || bo->tbo.ttm->state != tt_bound)
+			if (!amdgpu_ttm_tt_affect_userptr(bo->tbo.ttm, start,
+							  end))
 				continue;
 
 			r = amdgpu_bo_reserve(bo, true);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index 7d8d84e..66855b6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -113,6 +113,10 @@ static ssize_t amdgpu_get_dpm_forced_performance_level(struct device *dev,
 	struct drm_device *ddev = dev_get_drvdata(dev);
 	struct amdgpu_device *adev = ddev->dev_private;
 
+	if  ((adev->flags & AMD_IS_PX) &&
+	     (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
+		return snprintf(buf, PAGE_SIZE, "off\n");
+
 	if (adev->pp_enabled) {
 		enum amd_dpm_forced_level level;
 
@@ -140,6 +144,11 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev,
 	enum amdgpu_dpm_forced_level level;
 	int ret = 0;
 
+	/* Can't force performance level when the card is off */
+	if  ((adev->flags & AMD_IS_PX) &&
+	     (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
+		return -EINVAL;
+
 	if (strncmp("low", buf, strlen("low")) == 0) {
 		level = AMDGPU_DPM_FORCED_LEVEL_LOW;
 	} else if (strncmp("high", buf, strlen("high")) == 0) {
@@ -157,6 +166,7 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev,
 		mutex_lock(&adev->pm.mutex);
 		if (adev->pm.dpm.thermal_active) {
 			count = -EINVAL;
+			mutex_unlock(&adev->pm.mutex);
 			goto fail;
 		}
 		ret = amdgpu_dpm_force_performance_level(adev, level);
@@ -167,8 +177,6 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev,
 		mutex_unlock(&adev->pm.mutex);
 	}
 fail:
-	mutex_unlock(&adev->pm.mutex);
-
 	return count;
 }
 
@@ -182,8 +190,14 @@ static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
 				      char *buf)
 {
 	struct amdgpu_device *adev = dev_get_drvdata(dev);
+	struct drm_device *ddev = adev->ddev;
 	int temp;
 
+	/* Can't get temperature when the card is off */
+	if  ((adev->flags & AMD_IS_PX) &&
+	     (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
+		return -EINVAL;
+
 	if (!adev->pp_enabled && !adev->pm.funcs->get_temperature)
 		temp = 0;
 	else
@@ -634,8 +648,6 @@ force:
 
 	/* update display watermarks based on new power state */
 	amdgpu_display_bandwidth_update(adev);
-	/* update displays */
-	amdgpu_dpm_display_configuration_changed(adev);
 
 	adev->pm.dpm.current_active_crtcs = adev->pm.dpm.new_active_crtcs;
 	adev->pm.dpm.current_active_crtc_count = adev->pm.dpm.new_active_crtc_count;
@@ -655,6 +667,9 @@ force:
 
 	amdgpu_dpm_post_set_power_state(adev);
 
+	/* update displays */
+	amdgpu_dpm_display_configuration_changed(adev);
+
 	if (adev->pm.funcs->force_performance_level) {
 		if (adev->pm.dpm.thermal_active) {
 			enum amdgpu_dpm_forced_level level = adev->pm.dpm.forced_level;
@@ -847,12 +862,16 @@ static int amdgpu_debugfs_pm_info(struct seq_file *m, void *data)
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
 	struct drm_device *dev = node->minor->dev;
 	struct amdgpu_device *adev = dev->dev_private;
+	struct drm_device *ddev = adev->ddev;
 
 	if (!adev->pm.dpm_enabled) {
 		seq_printf(m, "dpm not enabled\n");
 		return 0;
 	}
-	if (adev->pp_enabled) {
+	if  ((adev->flags & AMD_IS_PX) &&
+	     (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) {
+		seq_printf(m, "PX asic powered off\n");
+	} else if (adev->pp_enabled) {
 		amdgpu_dpm_debugfs_print_current_performance_level(adev, m);
 	} else {
 		mutex_lock(&adev->pm.mutex);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
index 8b88edb..ca72a2e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
@@ -354,12 +354,15 @@ int amdgpu_sa_bo_new(struct amdgpu_sa_manager *sa_manager,
 
 		for (i = 0, count = 0; i < AMDGPU_MAX_RINGS; ++i)
 			if (fences[i])
-				fences[count++] = fences[i];
+				fences[count++] = fence_get(fences[i]);
 
 		if (count) {
 			spin_unlock(&sa_manager->wq.lock);
 			t = fence_wait_any_timeout(fences, count, false,
 						   MAX_SCHEDULE_TIMEOUT);
+			for (i = 0; i < count; ++i)
+				fence_put(fences[i]);
+
 			r = (t > 0) ? 0 : t;
 			spin_lock(&sa_manager->wq.lock);
 		} else {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 55cf05e..1cbb16e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -712,7 +712,7 @@ static int amdgpu_ttm_tt_populate(struct ttm_tt *ttm)
 						       0, PAGE_SIZE,
 						       PCI_DMA_BIDIRECTIONAL);
 		if (pci_dma_mapping_error(adev->pdev, gtt->ttm.dma_address[i])) {
-			while (--i) {
+			while (i--) {
 				pci_unmap_page(adev->pdev, gtt->ttm.dma_address[i],
 					       PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
 				gtt->ttm.dma_address[i] = 0;
@@ -783,6 +783,25 @@ bool amdgpu_ttm_tt_has_userptr(struct ttm_tt *ttm)
 	return !!gtt->userptr;
 }
 
+bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start,
+				  unsigned long end)
+{
+	struct amdgpu_ttm_tt *gtt = (void *)ttm;
+	unsigned long size;
+
+	if (gtt == NULL)
+		return false;
+
+	if (gtt->ttm.ttm.state != tt_bound || !gtt->userptr)
+		return false;
+
+	size = (unsigned long)gtt->ttm.ttm.num_pages * PAGE_SIZE;
+	if (gtt->userptr > end || gtt->userptr + size <= start)
+		return false;
+
+	return true;
+}
+
 bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm)
 {
 	struct amdgpu_ttm_tt *gtt = (void *)ttm;
diff --git a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
index 8b4731d..474ca02 100644
--- a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
@@ -31,6 +31,7 @@
 #include "ci_dpm.h"
 #include "gfx_v7_0.h"
 #include "atom.h"
+#include "amd_pcie.h"
 #include <linux/seq_file.h>
 
 #include "smu/smu_7_0_1_d.h"
@@ -5835,18 +5836,16 @@ static int ci_dpm_init(struct amdgpu_device *adev)
 	u8 frev, crev;
 	struct ci_power_info *pi;
 	int ret;
-	u32 mask;
 
 	pi = kzalloc(sizeof(struct ci_power_info), GFP_KERNEL);
 	if (pi == NULL)
 		return -ENOMEM;
 	adev->pm.dpm.priv = pi;
 
-	ret = drm_pcie_get_speed_cap_mask(adev->ddev, &mask);
-	if (ret)
-		pi->sys_pcie_mask = 0;
-	else
-		pi->sys_pcie_mask = mask;
+	pi->sys_pcie_mask =
+		(adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_MASK) >>
+		CAIL_PCIE_LINK_SPEED_SUPPORT_SHIFT;
+
 	pi->force_pcie_gen = AMDGPU_PCIE_GEN_INVALID;
 
 	pi->pcie_gen_performance.max = AMDGPU_PCIE_GEN1;
diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c
index fd9c958..155965e 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik.c
@@ -1762,6 +1762,9 @@ static void cik_program_aspm(struct amdgpu_device *adev)
 	if (amdgpu_aspm == 0)
 		return;
 
+	if (pci_is_root_bus(adev->pdev->bus))
+		return;
+
 	/* XXX double check APUs */
 	if (adev->flags & AMD_IS_APU)
 		return;
@@ -2332,72 +2335,72 @@ static int cik_common_early_init(void *handle)
 	switch (adev->asic_type) {
 	case CHIP_BONAIRE:
 		adev->cg_flags =
-			AMDGPU_CG_SUPPORT_GFX_MGCG |
-			AMDGPU_CG_SUPPORT_GFX_MGLS |
-			/*AMDGPU_CG_SUPPORT_GFX_CGCG |*/
-			AMDGPU_CG_SUPPORT_GFX_CGLS |
-			AMDGPU_CG_SUPPORT_GFX_CGTS |
-			AMDGPU_CG_SUPPORT_GFX_CGTS_LS |
-			AMDGPU_CG_SUPPORT_GFX_CP_LS |
-			AMDGPU_CG_SUPPORT_MC_LS |
-			AMDGPU_CG_SUPPORT_MC_MGCG |
-			AMDGPU_CG_SUPPORT_SDMA_MGCG |
-			AMDGPU_CG_SUPPORT_SDMA_LS |
-			AMDGPU_CG_SUPPORT_BIF_LS |
-			AMDGPU_CG_SUPPORT_VCE_MGCG |
-			AMDGPU_CG_SUPPORT_UVD_MGCG |
-			AMDGPU_CG_SUPPORT_HDP_LS |
-			AMDGPU_CG_SUPPORT_HDP_MGCG;
+			AMD_CG_SUPPORT_GFX_MGCG |
+			AMD_CG_SUPPORT_GFX_MGLS |
+			/*AMD_CG_SUPPORT_GFX_CGCG |*/
+			AMD_CG_SUPPORT_GFX_CGLS |
+			AMD_CG_SUPPORT_GFX_CGTS |
+			AMD_CG_SUPPORT_GFX_CGTS_LS |
+			AMD_CG_SUPPORT_GFX_CP_LS |
+			AMD_CG_SUPPORT_MC_LS |
+			AMD_CG_SUPPORT_MC_MGCG |
+			AMD_CG_SUPPORT_SDMA_MGCG |
+			AMD_CG_SUPPORT_SDMA_LS |
+			AMD_CG_SUPPORT_BIF_LS |
+			AMD_CG_SUPPORT_VCE_MGCG |
+			AMD_CG_SUPPORT_UVD_MGCG |
+			AMD_CG_SUPPORT_HDP_LS |
+			AMD_CG_SUPPORT_HDP_MGCG;
 		adev->pg_flags = 0;
 		adev->external_rev_id = adev->rev_id + 0x14;
 		break;
 	case CHIP_HAWAII:
 		adev->cg_flags =
-			AMDGPU_CG_SUPPORT_GFX_MGCG |
-			AMDGPU_CG_SUPPORT_GFX_MGLS |
-			/*AMDGPU_CG_SUPPORT_GFX_CGCG |*/
-			AMDGPU_CG_SUPPORT_GFX_CGLS |
-			AMDGPU_CG_SUPPORT_GFX_CGTS |
-			AMDGPU_CG_SUPPORT_GFX_CP_LS |
-			AMDGPU_CG_SUPPORT_MC_LS |
-			AMDGPU_CG_SUPPORT_MC_MGCG |
-			AMDGPU_CG_SUPPORT_SDMA_MGCG |
-			AMDGPU_CG_SUPPORT_SDMA_LS |
-			AMDGPU_CG_SUPPORT_BIF_LS |
-			AMDGPU_CG_SUPPORT_VCE_MGCG |
-			AMDGPU_CG_SUPPORT_UVD_MGCG |
-			AMDGPU_CG_SUPPORT_HDP_LS |
-			AMDGPU_CG_SUPPORT_HDP_MGCG;
+			AMD_CG_SUPPORT_GFX_MGCG |
+			AMD_CG_SUPPORT_GFX_MGLS |
+			/*AMD_CG_SUPPORT_GFX_CGCG |*/
+			AMD_CG_SUPPORT_GFX_CGLS |
+			AMD_CG_SUPPORT_GFX_CGTS |
+			AMD_CG_SUPPORT_GFX_CP_LS |
+			AMD_CG_SUPPORT_MC_LS |
+			AMD_CG_SUPPORT_MC_MGCG |
+			AMD_CG_SUPPORT_SDMA_MGCG |
+			AMD_CG_SUPPORT_SDMA_LS |
+			AMD_CG_SUPPORT_BIF_LS |
+			AMD_CG_SUPPORT_VCE_MGCG |
+			AMD_CG_SUPPORT_UVD_MGCG |
+			AMD_CG_SUPPORT_HDP_LS |
+			AMD_CG_SUPPORT_HDP_MGCG;
 		adev->pg_flags = 0;
 		adev->external_rev_id = 0x28;
 		break;
 	case CHIP_KAVERI:
 		adev->cg_flags =
-			AMDGPU_CG_SUPPORT_GFX_MGCG |
-			AMDGPU_CG_SUPPORT_GFX_MGLS |
-			/*AMDGPU_CG_SUPPORT_GFX_CGCG |*/
-			AMDGPU_CG_SUPPORT_GFX_CGLS |
-			AMDGPU_CG_SUPPORT_GFX_CGTS |
-			AMDGPU_CG_SUPPORT_GFX_CGTS_LS |
-			AMDGPU_CG_SUPPORT_GFX_CP_LS |
-			AMDGPU_CG_SUPPORT_SDMA_MGCG |
-			AMDGPU_CG_SUPPORT_SDMA_LS |
-			AMDGPU_CG_SUPPORT_BIF_LS |
-			AMDGPU_CG_SUPPORT_VCE_MGCG |
-			AMDGPU_CG_SUPPORT_UVD_MGCG |
-			AMDGPU_CG_SUPPORT_HDP_LS |
-			AMDGPU_CG_SUPPORT_HDP_MGCG;
+			AMD_CG_SUPPORT_GFX_MGCG |
+			AMD_CG_SUPPORT_GFX_MGLS |
+			/*AMD_CG_SUPPORT_GFX_CGCG |*/
+			AMD_CG_SUPPORT_GFX_CGLS |
+			AMD_CG_SUPPORT_GFX_CGTS |
+			AMD_CG_SUPPORT_GFX_CGTS_LS |
+			AMD_CG_SUPPORT_GFX_CP_LS |
+			AMD_CG_SUPPORT_SDMA_MGCG |
+			AMD_CG_SUPPORT_SDMA_LS |
+			AMD_CG_SUPPORT_BIF_LS |
+			AMD_CG_SUPPORT_VCE_MGCG |
+			AMD_CG_SUPPORT_UVD_MGCG |
+			AMD_CG_SUPPORT_HDP_LS |
+			AMD_CG_SUPPORT_HDP_MGCG;
 		adev->pg_flags =
-			/*AMDGPU_PG_SUPPORT_GFX_PG |
-			  AMDGPU_PG_SUPPORT_GFX_SMG |
-			  AMDGPU_PG_SUPPORT_GFX_DMG |*/
-			AMDGPU_PG_SUPPORT_UVD |
-			/*AMDGPU_PG_SUPPORT_VCE |
-			  AMDGPU_PG_SUPPORT_CP |
-			  AMDGPU_PG_SUPPORT_GDS |
-			  AMDGPU_PG_SUPPORT_RLC_SMU_HS |
-			  AMDGPU_PG_SUPPORT_ACP |
-			  AMDGPU_PG_SUPPORT_SAMU |*/
+			/*AMD_PG_SUPPORT_GFX_PG |
+			  AMD_PG_SUPPORT_GFX_SMG |
+			  AMD_PG_SUPPORT_GFX_DMG |*/
+			AMD_PG_SUPPORT_UVD |
+			/*AMD_PG_SUPPORT_VCE |
+			  AMD_PG_SUPPORT_CP |
+			  AMD_PG_SUPPORT_GDS |
+			  AMD_PG_SUPPORT_RLC_SMU_HS |
+			  AMD_PG_SUPPORT_ACP |
+			  AMD_PG_SUPPORT_SAMU |*/
 			0;
 		if (adev->pdev->device == 0x1312 ||
 			adev->pdev->device == 0x1316 ||
@@ -2409,29 +2412,29 @@ static int cik_common_early_init(void *handle)
 	case CHIP_KABINI:
 	case CHIP_MULLINS:
 		adev->cg_flags =
-			AMDGPU_CG_SUPPORT_GFX_MGCG |
-			AMDGPU_CG_SUPPORT_GFX_MGLS |
-			/*AMDGPU_CG_SUPPORT_GFX_CGCG |*/
-			AMDGPU_CG_SUPPORT_GFX_CGLS |
-			AMDGPU_CG_SUPPORT_GFX_CGTS |
-			AMDGPU_CG_SUPPORT_GFX_CGTS_LS |
-			AMDGPU_CG_SUPPORT_GFX_CP_LS |
-			AMDGPU_CG_SUPPORT_SDMA_MGCG |
-			AMDGPU_CG_SUPPORT_SDMA_LS |
-			AMDGPU_CG_SUPPORT_BIF_LS |
-			AMDGPU_CG_SUPPORT_VCE_MGCG |
-			AMDGPU_CG_SUPPORT_UVD_MGCG |
-			AMDGPU_CG_SUPPORT_HDP_LS |
-			AMDGPU_CG_SUPPORT_HDP_MGCG;
+			AMD_CG_SUPPORT_GFX_MGCG |
+			AMD_CG_SUPPORT_GFX_MGLS |
+			/*AMD_CG_SUPPORT_GFX_CGCG |*/
+			AMD_CG_SUPPORT_GFX_CGLS |
+			AMD_CG_SUPPORT_GFX_CGTS |
+			AMD_CG_SUPPORT_GFX_CGTS_LS |
+			AMD_CG_SUPPORT_GFX_CP_LS |
+			AMD_CG_SUPPORT_SDMA_MGCG |
+			AMD_CG_SUPPORT_SDMA_LS |
+			AMD_CG_SUPPORT_BIF_LS |
+			AMD_CG_SUPPORT_VCE_MGCG |
+			AMD_CG_SUPPORT_UVD_MGCG |
+			AMD_CG_SUPPORT_HDP_LS |
+			AMD_CG_SUPPORT_HDP_MGCG;
 		adev->pg_flags =
-			/*AMDGPU_PG_SUPPORT_GFX_PG |
-			  AMDGPU_PG_SUPPORT_GFX_SMG | */
-			AMDGPU_PG_SUPPORT_UVD |
-			/*AMDGPU_PG_SUPPORT_VCE |
-			  AMDGPU_PG_SUPPORT_CP |
-			  AMDGPU_PG_SUPPORT_GDS |
-			  AMDGPU_PG_SUPPORT_RLC_SMU_HS |
-			  AMDGPU_PG_SUPPORT_SAMU |*/
+			/*AMD_PG_SUPPORT_GFX_PG |
+			  AMD_PG_SUPPORT_GFX_SMG | */
+			AMD_PG_SUPPORT_UVD |
+			/*AMD_PG_SUPPORT_VCE |
+			  AMD_PG_SUPPORT_CP |
+			  AMD_PG_SUPPORT_GDS |
+			  AMD_PG_SUPPORT_RLC_SMU_HS |
+			  AMD_PG_SUPPORT_SAMU |*/
 			0;
 		if (adev->asic_type == CHIP_KABINI) {
 			if (adev->rev_id == 0)
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
index 5f712ce..c55ecf0 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
@@ -885,7 +885,7 @@ static void cik_enable_sdma_mgcg(struct amdgpu_device *adev,
 {
 	u32 orig, data;
 
-	if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_SDMA_MGCG)) {
+	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) {
 		WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, 0x00000100);
 		WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, 0x00000100);
 	} else {
@@ -906,7 +906,7 @@ static void cik_enable_sdma_mgls(struct amdgpu_device *adev,
 {
 	u32 orig, data;
 
-	if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_SDMA_LS)) {
+	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) {
 		orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET);
 		data |= 0x100;
 		if (orig != data)
diff --git a/drivers/gpu/drm/amd/amdgpu/cz_dpm.c b/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
index 4dd17f2..9056355 100644
--- a/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
@@ -445,13 +445,13 @@ static int cz_dpm_init(struct amdgpu_device *adev)
 	pi->gfx_pg_threshold = 500;
 	pi->caps_fps = true;
 	/* uvd */
-	pi->caps_uvd_pg = (adev->pg_flags & AMDGPU_PG_SUPPORT_UVD) ? true : false;
+	pi->caps_uvd_pg = (adev->pg_flags & AMD_PG_SUPPORT_UVD) ? true : false;
 	pi->caps_uvd_dpm = true;
 	/* vce */
-	pi->caps_vce_pg = (adev->pg_flags & AMDGPU_PG_SUPPORT_VCE) ? true : false;
+	pi->caps_vce_pg = (adev->pg_flags & AMD_PG_SUPPORT_VCE) ? true : false;
 	pi->caps_vce_dpm = true;
 	/* acp */
-	pi->caps_acp_pg = (adev->pg_flags & AMDGPU_PG_SUPPORT_ACP) ? true : false;
+	pi->caps_acp_pg = (adev->pg_flags & AMD_PG_SUPPORT_ACP) ? true : false;
 	pi->caps_acp_dpm = true;
 
 	pi->caps_stable_power_state = false;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 6c76139..7732059 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -4109,7 +4109,7 @@ static void gfx_v7_0_enable_cgcg(struct amdgpu_device *adev, bool enable)
 
 	orig = data = RREG32(mmRLC_CGCG_CGLS_CTRL);
 
-	if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_GFX_CGCG)) {
+	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_CGCG)) {
 		gfx_v7_0_enable_gui_idle_interrupt(adev, true);
 
 		tmp = gfx_v7_0_halt_rlc(adev);
@@ -4147,9 +4147,9 @@ static void gfx_v7_0_enable_mgcg(struct amdgpu_device *adev, bool enable)
 {
 	u32 data, orig, tmp = 0;
 
-	if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_GFX_MGCG)) {
-		if (adev->cg_flags & AMDGPU_CG_SUPPORT_GFX_MGLS) {
-			if (adev->cg_flags & AMDGPU_CG_SUPPORT_GFX_CP_LS) {
+	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGCG)) {
+		if (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGLS) {
+			if (adev->cg_flags & AMD_CG_SUPPORT_GFX_CP_LS) {
 				orig = data = RREG32(mmCP_MEM_SLP_CNTL);
 				data |= CP_MEM_SLP_CNTL__CP_MEM_LS_EN_MASK;
 				if (orig != data)
@@ -4176,14 +4176,14 @@ static void gfx_v7_0_enable_mgcg(struct amdgpu_device *adev, bool enable)
 
 		gfx_v7_0_update_rlc(adev, tmp);
 
-		if (adev->cg_flags & AMDGPU_CG_SUPPORT_GFX_CGTS) {
+		if (adev->cg_flags & AMD_CG_SUPPORT_GFX_CGTS) {
 			orig = data = RREG32(mmCGTS_SM_CTRL_REG);
 			data &= ~CGTS_SM_CTRL_REG__SM_MODE_MASK;
 			data |= (0x2 << CGTS_SM_CTRL_REG__SM_MODE__SHIFT);
 			data |= CGTS_SM_CTRL_REG__SM_MODE_ENABLE_MASK;
 			data &= ~CGTS_SM_CTRL_REG__OVERRIDE_MASK;
-			if ((adev->cg_flags & AMDGPU_CG_SUPPORT_GFX_MGLS) &&
-			    (adev->cg_flags & AMDGPU_CG_SUPPORT_GFX_CGTS_LS))
+			if ((adev->cg_flags & AMD_CG_SUPPORT_GFX_MGLS) &&
+			    (adev->cg_flags & AMD_CG_SUPPORT_GFX_CGTS_LS))
 				data &= ~CGTS_SM_CTRL_REG__LS_OVERRIDE_MASK;
 			data &= ~CGTS_SM_CTRL_REG__ON_MONITOR_ADD_MASK;
 			data |= CGTS_SM_CTRL_REG__ON_MONITOR_ADD_EN_MASK;
@@ -4249,7 +4249,7 @@ static void gfx_v7_0_enable_sclk_slowdown_on_pu(struct amdgpu_device *adev,
 	u32 data, orig;
 
 	orig = data = RREG32(mmRLC_PG_CNTL);
-	if (enable && (adev->pg_flags & AMDGPU_PG_SUPPORT_RLC_SMU_HS))
+	if (enable && (adev->pg_flags & AMD_PG_SUPPORT_RLC_SMU_HS))
 		data |= RLC_PG_CNTL__SMU_CLK_SLOWDOWN_ON_PU_ENABLE_MASK;
 	else
 		data &= ~RLC_PG_CNTL__SMU_CLK_SLOWDOWN_ON_PU_ENABLE_MASK;
@@ -4263,7 +4263,7 @@ static void gfx_v7_0_enable_sclk_slowdown_on_pd(struct amdgpu_device *adev,
 	u32 data, orig;
 
 	orig = data = RREG32(mmRLC_PG_CNTL);
-	if (enable && (adev->pg_flags & AMDGPU_PG_SUPPORT_RLC_SMU_HS))
+	if (enable && (adev->pg_flags & AMD_PG_SUPPORT_RLC_SMU_HS))
 		data |= RLC_PG_CNTL__SMU_CLK_SLOWDOWN_ON_PD_ENABLE_MASK;
 	else
 		data &= ~RLC_PG_CNTL__SMU_CLK_SLOWDOWN_ON_PD_ENABLE_MASK;
@@ -4276,7 +4276,7 @@ static void gfx_v7_0_enable_cp_pg(struct amdgpu_device *adev, bool enable)
 	u32 data, orig;
 
 	orig = data = RREG32(mmRLC_PG_CNTL);
-	if (enable && (adev->pg_flags & AMDGPU_PG_SUPPORT_CP))
+	if (enable && (adev->pg_flags & AMD_PG_SUPPORT_CP))
 		data &= ~0x8000;
 	else
 		data |= 0x8000;
@@ -4289,7 +4289,7 @@ static void gfx_v7_0_enable_gds_pg(struct amdgpu_device *adev, bool enable)
 	u32 data, orig;
 
 	orig = data = RREG32(mmRLC_PG_CNTL);
-	if (enable && (adev->pg_flags & AMDGPU_PG_SUPPORT_GDS))
+	if (enable && (adev->pg_flags & AMD_PG_SUPPORT_GDS))
 		data &= ~0x2000;
 	else
 		data |= 0x2000;
@@ -4370,7 +4370,7 @@ static void gfx_v7_0_enable_gfx_cgpg(struct amdgpu_device *adev,
 {
 	u32 data, orig;
 
-	if (enable && (adev->pg_flags & AMDGPU_PG_SUPPORT_GFX_PG)) {
+	if (enable && (adev->pg_flags & AMD_PG_SUPPORT_GFX_PG)) {
 		orig = data = RREG32(mmRLC_PG_CNTL);
 		data |= RLC_PG_CNTL__GFX_POWER_GATING_ENABLE_MASK;
 		if (orig != data)
@@ -4442,7 +4442,7 @@ static void gfx_v7_0_enable_gfx_static_mgpg(struct amdgpu_device *adev,
 	u32 data, orig;
 
 	orig = data = RREG32(mmRLC_PG_CNTL);
-	if (enable && (adev->pg_flags & AMDGPU_PG_SUPPORT_GFX_SMG))
+	if (enable && (adev->pg_flags & AMD_PG_SUPPORT_GFX_SMG))
 		data |= RLC_PG_CNTL__STATIC_PER_CU_PG_ENABLE_MASK;
 	else
 		data &= ~RLC_PG_CNTL__STATIC_PER_CU_PG_ENABLE_MASK;
@@ -4456,7 +4456,7 @@ static void gfx_v7_0_enable_gfx_dynamic_mgpg(struct amdgpu_device *adev,
 	u32 data, orig;
 
 	orig = data = RREG32(mmRLC_PG_CNTL);
-	if (enable && (adev->pg_flags & AMDGPU_PG_SUPPORT_GFX_DMG))
+	if (enable && (adev->pg_flags & AMD_PG_SUPPORT_GFX_DMG))
 		data |= RLC_PG_CNTL__DYN_PER_CU_PG_ENABLE_MASK;
 	else
 		data &= ~RLC_PG_CNTL__DYN_PER_CU_PG_ENABLE_MASK;
@@ -4623,15 +4623,15 @@ static void gfx_v7_0_get_csb_buffer(struct amdgpu_device *adev,
 
 static void gfx_v7_0_init_pg(struct amdgpu_device *adev)
 {
-	if (adev->pg_flags & (AMDGPU_PG_SUPPORT_GFX_PG |
-			      AMDGPU_PG_SUPPORT_GFX_SMG |
-			      AMDGPU_PG_SUPPORT_GFX_DMG |
-			      AMDGPU_PG_SUPPORT_CP |
-			      AMDGPU_PG_SUPPORT_GDS |
-			      AMDGPU_PG_SUPPORT_RLC_SMU_HS)) {
+	if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG |
+			      AMD_PG_SUPPORT_GFX_SMG |
+			      AMD_PG_SUPPORT_GFX_DMG |
+			      AMD_PG_SUPPORT_CP |
+			      AMD_PG_SUPPORT_GDS |
+			      AMD_PG_SUPPORT_RLC_SMU_HS)) {
 		gfx_v7_0_enable_sclk_slowdown_on_pu(adev, true);
 		gfx_v7_0_enable_sclk_slowdown_on_pd(adev, true);
-		if (adev->pg_flags & AMDGPU_PG_SUPPORT_GFX_PG) {
+		if (adev->pg_flags & AMD_PG_SUPPORT_GFX_PG) {
 			gfx_v7_0_init_gfx_cgpg(adev);
 			gfx_v7_0_enable_cp_pg(adev, true);
 			gfx_v7_0_enable_gds_pg(adev, true);
@@ -4643,14 +4643,14 @@ static void gfx_v7_0_init_pg(struct amdgpu_device *adev)
 
 static void gfx_v7_0_fini_pg(struct amdgpu_device *adev)
 {
-	if (adev->pg_flags & (AMDGPU_PG_SUPPORT_GFX_PG |
-			      AMDGPU_PG_SUPPORT_GFX_SMG |
-			      AMDGPU_PG_SUPPORT_GFX_DMG |
-			      AMDGPU_PG_SUPPORT_CP |
-			      AMDGPU_PG_SUPPORT_GDS |
-			      AMDGPU_PG_SUPPORT_RLC_SMU_HS)) {
+	if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG |
+			      AMD_PG_SUPPORT_GFX_SMG |
+			      AMD_PG_SUPPORT_GFX_DMG |
+			      AMD_PG_SUPPORT_CP |
+			      AMD_PG_SUPPORT_GDS |
+			      AMD_PG_SUPPORT_RLC_SMU_HS)) {
 		gfx_v7_0_update_gfx_pg(adev, false);
-		if (adev->pg_flags & AMDGPU_PG_SUPPORT_GFX_PG) {
+		if (adev->pg_flags & AMD_PG_SUPPORT_GFX_PG) {
 			gfx_v7_0_enable_cp_pg(adev, false);
 			gfx_v7_0_enable_gds_pg(adev, false);
 		}
@@ -5527,14 +5527,14 @@ static int gfx_v7_0_set_powergating_state(void *handle,
 	if (state == AMD_PG_STATE_GATE)
 		gate = true;
 
-	if (adev->pg_flags & (AMDGPU_PG_SUPPORT_GFX_PG |
-			      AMDGPU_PG_SUPPORT_GFX_SMG |
-			      AMDGPU_PG_SUPPORT_GFX_DMG |
-			      AMDGPU_PG_SUPPORT_CP |
-			      AMDGPU_PG_SUPPORT_GDS |
-			      AMDGPU_PG_SUPPORT_RLC_SMU_HS)) {
+	if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG |
+			      AMD_PG_SUPPORT_GFX_SMG |
+			      AMD_PG_SUPPORT_GFX_DMG |
+			      AMD_PG_SUPPORT_CP |
+			      AMD_PG_SUPPORT_GDS |
+			      AMD_PG_SUPPORT_RLC_SMU_HS)) {
 		gfx_v7_0_update_gfx_pg(adev, gate);
-		if (adev->pg_flags & AMDGPU_PG_SUPPORT_GFX_PG) {
+		if (adev->pg_flags & AMD_PG_SUPPORT_GFX_PG) {
 			gfx_v7_0_enable_cp_pg(adev, gate);
 			gfx_v7_0_enable_gds_pg(adev, gate);
 		}
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 8f8ec37..1c40bd9 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4995,7 +4995,7 @@ static int gfx_v8_0_set_priv_reg_fault_state(struct amdgpu_device *adev,
 	case AMDGPU_IRQ_STATE_ENABLE:
 		cp_int_cntl = RREG32(mmCP_INT_CNTL_RING0);
 		cp_int_cntl = REG_SET_FIELD(cp_int_cntl, CP_INT_CNTL_RING0,
-					    PRIV_REG_INT_ENABLE, 0);
+					    PRIV_REG_INT_ENABLE, 1);
 		WREG32(mmCP_INT_CNTL_RING0, cp_int_cntl);
 		break;
 	default:
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
index 8aa2991..b806079 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
@@ -792,7 +792,7 @@ static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
 
 	for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 		orig = data = RREG32(mc_cg_registers[i]);
-		if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_LS))
+		if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 			data |= mc_cg_ls_en[i];
 		else
 			data &= ~mc_cg_ls_en[i];
@@ -809,7 +809,7 @@ static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
 
 	for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 		orig = data = RREG32(mc_cg_registers[i]);
-		if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_MGCG))
+		if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 			data |= mc_cg_en[i];
 		else
 			data &= ~mc_cg_en[i];
@@ -825,7 +825,7 @@ static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
 
 	orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 
-	if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_BIF_LS)) {
+	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
 		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 		data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 		data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
@@ -848,7 +848,7 @@ static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 
 	orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 
-	if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_MGCG))
+	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
 		data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 	else
 		data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
@@ -864,7 +864,7 @@ static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
 
 	orig = data = RREG32(mmHDP_MEM_POWER_LS);
 
-	if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_LS))
+	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 		data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 	else
 		data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
diff --git a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
index 7e9154c..654d767 100644
--- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
@@ -2859,11 +2859,11 @@ static int kv_dpm_init(struct amdgpu_device *adev)
 	pi->voltage_drop_t = 0;
 	pi->caps_sclk_throttle_low_notification = false;
 	pi->caps_fps = false; /* true? */
-	pi->caps_uvd_pg = (adev->pg_flags & AMDGPU_PG_SUPPORT_UVD) ? true : false;
+	pi->caps_uvd_pg = (adev->pg_flags & AMD_PG_SUPPORT_UVD) ? true : false;
 	pi->caps_uvd_dpm = true;
-	pi->caps_vce_pg = (adev->pg_flags & AMDGPU_PG_SUPPORT_VCE) ? true : false;
-	pi->caps_samu_pg = (adev->pg_flags & AMDGPU_PG_SUPPORT_SAMU) ? true : false;
-	pi->caps_acp_pg = (adev->pg_flags & AMDGPU_PG_SUPPORT_ACP) ? true : false;
+	pi->caps_vce_pg = (adev->pg_flags & AMD_PG_SUPPORT_VCE) ? true : false;
+	pi->caps_samu_pg = (adev->pg_flags & AMD_PG_SUPPORT_SAMU) ? true : false;
+	pi->caps_acp_pg = (adev->pg_flags & AMD_PG_SUPPORT_ACP) ? true : false;
 	pi->caps_stable_p_state = false;
 
 	ret = kv_parse_sys_info_table(adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
index 5e9f73a..fbd3767 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
@@ -611,7 +611,7 @@ static void uvd_v4_2_enable_mgcg(struct amdgpu_device *adev,
 {
 	u32 orig, data;
 
-	if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_UVD_MGCG)) {
+	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG)) {
 		data = RREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL);
 		data = 0xfff;
 		WREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL, data);
@@ -830,6 +830,9 @@ static int uvd_v4_2_set_clockgating_state(void *handle,
 	bool gate = false;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+	if (!(adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG))
+		return 0;
+
 	if (state == AMD_CG_STATE_GATE)
 		gate = true;
 
@@ -848,7 +851,10 @@ static int uvd_v4_2_set_powergating_state(void *handle,
 	 * revisit this when there is a cleaner line between
 	 * the smc and the hw blocks
 	 */
-	 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	if (!(adev->pg_flags & AMD_PG_SUPPORT_UVD))
+		return 0;
 
 	if (state == AMD_PG_STATE_GATE) {
 		uvd_v4_2_stop(adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
index 38864f56..57f1c5b 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
@@ -774,6 +774,11 @@ static int uvd_v5_0_process_interrupt(struct amdgpu_device *adev,
 static int uvd_v5_0_set_clockgating_state(void *handle,
 					  enum amd_clockgating_state state)
 {
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	if (!(adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG))
+		return 0;
+
 	return 0;
 }
 
@@ -789,6 +794,9 @@ static int uvd_v5_0_set_powergating_state(void *handle,
 	 */
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+	if (!(adev->pg_flags & AMD_PG_SUPPORT_UVD))
+		return 0;
+
 	if (state == AMD_PG_STATE_GATE) {
 		uvd_v5_0_stop(adev);
 		return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
index 3d59139..0b365b7 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
@@ -532,7 +532,7 @@ static int uvd_v6_0_start(struct amdgpu_device *adev)
 	uvd_v6_0_mc_resume(adev);
 
 	/* Set dynamic clock gating in S/W control mode */
-	if (adev->cg_flags & AMDGPU_CG_SUPPORT_UVD_MGCG) {
+	if (adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG) {
 		if (adev->flags & AMD_IS_APU)
 			cz_set_uvd_clock_gating_branches(adev, false);
 		else
@@ -1000,7 +1000,7 @@ static int uvd_v6_0_set_clockgating_state(void *handle,
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 	bool enable = (state == AMD_CG_STATE_GATE) ? true : false;
 
-	if (!(adev->cg_flags & AMDGPU_CG_SUPPORT_UVD_MGCG))
+	if (!(adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG))
 		return 0;
 
 	if (enable) {
@@ -1030,6 +1030,9 @@ static int uvd_v6_0_set_powergating_state(void *handle,
 	 */
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+	if (!(adev->pg_flags & AMD_PG_SUPPORT_UVD))
+		return 0;
+
 	if (state == AMD_PG_STATE_GATE) {
 		uvd_v6_0_stop(adev);
 		return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
index 52ac7a8..a822eda 100644
--- a/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
@@ -373,7 +373,7 @@ static void vce_v2_0_enable_mgcg(struct amdgpu_device *adev, bool enable)
 {
 	bool sw_cg = false;
 
-	if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_VCE_MGCG)) {
+	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_VCE_MGCG)) {
 		if (sw_cg)
 			vce_v2_0_set_sw_cg(adev, true);
 		else
@@ -608,6 +608,9 @@ static int vce_v2_0_set_powergating_state(void *handle,
 	 */
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+	if (!(adev->pg_flags & AMD_PG_SUPPORT_VCE))
+		return 0;
+
 	if (state == AMD_PG_STATE_GATE)
 		/* XXX do we need a vce_v2_0_stop()? */
 		return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
index e99af81..d662fa9 100644
--- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
@@ -277,7 +277,7 @@ static int vce_v3_0_start(struct amdgpu_device *adev)
 		WREG32_P(mmVCE_STATUS, 0, ~1);
 
 		/* Set Clock-Gating off */
-		if (adev->cg_flags & AMDGPU_CG_SUPPORT_VCE_MGCG)
+		if (adev->cg_flags & AMD_CG_SUPPORT_VCE_MGCG)
 			vce_v3_0_set_vce_sw_clock_gating(adev, false);
 
 		if (r) {
@@ -676,7 +676,7 @@ static int vce_v3_0_set_clockgating_state(void *handle,
 	bool enable = (state == AMD_CG_STATE_GATE) ? true : false;
 	int i;
 
-	if (!(adev->cg_flags & AMDGPU_CG_SUPPORT_VCE_MGCG))
+	if (!(adev->cg_flags & AMD_CG_SUPPORT_VCE_MGCG))
 		return 0;
 
 	mutex_lock(&adev->grbm_idx_mutex);
@@ -728,6 +728,9 @@ static int vce_v3_0_set_powergating_state(void *handle,
 	 */
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+	if (!(adev->pg_flags & AMD_PG_SUPPORT_VCE))
+		return 0;
+
 	if (state == AMD_PG_STATE_GATE)
 		/* XXX do we need a vce_v3_0_stop()? */
 		return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 89f5a1f..0d14d10 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -1457,8 +1457,7 @@ static int vi_common_early_init(void *handle)
 	case CHIP_STONEY:
 		adev->has_uvd = true;
 		adev->cg_flags = 0;
-		/* Disable UVD pg */
-		adev->pg_flags = /* AMDGPU_PG_SUPPORT_UVD | */AMDGPU_PG_SUPPORT_VCE;
+		adev->pg_flags = 0;
 		adev->external_rev_id = adev->rev_id + 0x1;
 		break;
 	default:
diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h
index 1195d06f..dbf7e64 100644
--- a/drivers/gpu/drm/amd/include/amd_shared.h
+++ b/drivers/gpu/drm/amd/include/amd_shared.h
@@ -85,6 +85,38 @@ enum amd_powergating_state {
 	AMD_PG_STATE_UNGATE,
 };
 
+/* CG flags */
+#define AMD_CG_SUPPORT_GFX_MGCG			(1 << 0)
+#define AMD_CG_SUPPORT_GFX_MGLS			(1 << 1)
+#define AMD_CG_SUPPORT_GFX_CGCG			(1 << 2)
+#define AMD_CG_SUPPORT_GFX_CGLS			(1 << 3)
+#define AMD_CG_SUPPORT_GFX_CGTS			(1 << 4)
+#define AMD_CG_SUPPORT_GFX_CGTS_LS		(1 << 5)
+#define AMD_CG_SUPPORT_GFX_CP_LS		(1 << 6)
+#define AMD_CG_SUPPORT_GFX_RLC_LS		(1 << 7)
+#define AMD_CG_SUPPORT_MC_LS			(1 << 8)
+#define AMD_CG_SUPPORT_MC_MGCG			(1 << 9)
+#define AMD_CG_SUPPORT_SDMA_LS			(1 << 10)
+#define AMD_CG_SUPPORT_SDMA_MGCG		(1 << 11)
+#define AMD_CG_SUPPORT_BIF_LS			(1 << 12)
+#define AMD_CG_SUPPORT_UVD_MGCG			(1 << 13)
+#define AMD_CG_SUPPORT_VCE_MGCG			(1 << 14)
+#define AMD_CG_SUPPORT_HDP_LS			(1 << 15)
+#define AMD_CG_SUPPORT_HDP_MGCG			(1 << 16)
+
+/* PG flags */
+#define AMD_PG_SUPPORT_GFX_PG			(1 << 0)
+#define AMD_PG_SUPPORT_GFX_SMG			(1 << 1)
+#define AMD_PG_SUPPORT_GFX_DMG			(1 << 2)
+#define AMD_PG_SUPPORT_UVD			(1 << 3)
+#define AMD_PG_SUPPORT_VCE			(1 << 4)
+#define AMD_PG_SUPPORT_CP			(1 << 5)
+#define AMD_PG_SUPPORT_GDS			(1 << 6)
+#define AMD_PG_SUPPORT_RLC_SMU_HS		(1 << 7)
+#define AMD_PG_SUPPORT_SDMA			(1 << 8)
+#define AMD_PG_SUPPORT_ACP			(1 << 9)
+#define AMD_PG_SUPPORT_SAMU			(1 << 10)
+
 enum amd_pm_state_type {
 	/* not used for dpm */
 	POWER_STATE_TYPE_DEFAULT,
diff --git a/drivers/gpu/drm/amd/include/cgs_common.h b/drivers/gpu/drm/amd/include/cgs_common.h
index 713aec9..aec38fc 100644
--- a/drivers/gpu/drm/amd/include/cgs_common.h
+++ b/drivers/gpu/drm/amd/include/cgs_common.h
@@ -109,6 +109,8 @@ enum cgs_system_info_id {
 	CGS_SYSTEM_INFO_ADAPTER_BDF_ID = 1,
 	CGS_SYSTEM_INFO_PCIE_GEN_INFO,
 	CGS_SYSTEM_INFO_PCIE_MLW,
+	CGS_SYSTEM_INFO_CG_FLAGS,
+	CGS_SYSTEM_INFO_PG_FLAGS,
 	CGS_SYSTEM_INFO_ID_MAXIMUM,
 };
 
diff --git a/drivers/gpu/drm/amd/powerplay/eventmgr/eventmgr.c b/drivers/gpu/drm/amd/powerplay/eventmgr/eventmgr.c
index 52a3efc..46410e3 100644
--- a/drivers/gpu/drm/amd/powerplay/eventmgr/eventmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/eventmgr/eventmgr.c
@@ -31,7 +31,7 @@
 static int pem_init(struct pp_eventmgr *eventmgr)
 {
 	int result = 0;
-	struct pem_event_data event_data;
+	struct pem_event_data event_data = { {0} };
 
 	/* Initialize PowerPlay feature info */
 	pem_init_feature_info(eventmgr);
@@ -52,7 +52,7 @@ static int pem_init(struct pp_eventmgr *eventmgr)
 
 static void pem_fini(struct pp_eventmgr *eventmgr)
 {
-	struct pem_event_data event_data;
+	struct pem_event_data event_data = { {0} };
 
 	pem_uninit_featureInfo(eventmgr);
 	pem_unregister_interrupts(eventmgr);
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
index 0874ab4..cf01177 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
@@ -174,6 +174,8 @@ static int cz_initialize_dpm_defaults(struct pp_hwmgr *hwmgr)
 {
 	struct cz_hwmgr *cz_hwmgr = (struct cz_hwmgr *)(hwmgr->backend);
 	uint32_t i;
+	struct cgs_system_info sys_info = {0};
+	int result;
 
 	cz_hwmgr->gfx_ramp_step = 256*25/100;
 
@@ -247,6 +249,22 @@ static int cz_initialize_dpm_defaults(struct pp_hwmgr *hwmgr)
 	phm_cap_set(hwmgr->platform_descriptor.platformCaps,
 				   PHM_PlatformCaps_DisableVoltageIsland);
 
+	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
+		      PHM_PlatformCaps_UVDPowerGating);
+	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
+		      PHM_PlatformCaps_VCEPowerGating);
+	sys_info.size = sizeof(struct cgs_system_info);
+	sys_info.info_id = CGS_SYSTEM_INFO_PG_FLAGS;
+	result = cgs_query_system_info(hwmgr->device, &sys_info);
+	if (!result) {
+		if (sys_info.value & AMD_PG_SUPPORT_UVD)
+			phm_cap_set(hwmgr->platform_descriptor.platformCaps,
+				      PHM_PlatformCaps_UVDPowerGating);
+		if (sys_info.value & AMD_PG_SUPPORT_VCE)
+			phm_cap_set(hwmgr->platform_descriptor.platformCaps,
+				      PHM_PlatformCaps_VCEPowerGating);
+	}
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
index 44a9250..980d3bf 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
@@ -4451,6 +4451,7 @@ int tonga_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
 	pp_atomctrl_gpio_pin_assignment gpio_pin_assignment;
 	struct phm_ppt_v1_information *pptable_info = (struct phm_ppt_v1_information *)(hwmgr->pptable);
 	phw_tonga_ulv_parm *ulv;
+	struct cgs_system_info sys_info = {0};
 
 	PP_ASSERT_WITH_CODE((NULL != hwmgr),
 		"Invalid Parameter!", return -1;);
@@ -4615,9 +4616,23 @@ int tonga_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
 
 	data->vddc_phase_shed_control = 0;
 
-	if (0 == result) {
-		struct cgs_system_info sys_info = {0};
+	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
+		      PHM_PlatformCaps_UVDPowerGating);
+	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
+		      PHM_PlatformCaps_VCEPowerGating);
+	sys_info.size = sizeof(struct cgs_system_info);
+	sys_info.info_id = CGS_SYSTEM_INFO_PG_FLAGS;
+	result = cgs_query_system_info(hwmgr->device, &sys_info);
+	if (!result) {
+		if (sys_info.value & AMD_PG_SUPPORT_UVD)
+			phm_cap_set(hwmgr->platform_descriptor.platformCaps,
+				      PHM_PlatformCaps_UVDPowerGating);
+		if (sys_info.value & AMD_PG_SUPPORT_VCE)
+			phm_cap_set(hwmgr->platform_descriptor.platformCaps,
+				      PHM_PlatformCaps_VCEPowerGating);
+	}
 
+	if (0 == result) {
 		data->is_tlu_enabled = 0;
 		hwmgr->platform_descriptor.hardwareActivityPerformanceLevels =
 			TONGA_MAX_HARDWARE_POWERLEVELS;
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 3f74193..9a7b446 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -65,8 +65,6 @@ drm_atomic_state_init(struct drm_device *dev, struct drm_atomic_state *state)
 	 */
 	state->allow_modeset = true;
 
-	state->num_connector = ACCESS_ONCE(dev->mode_config.num_connector);
-
 	state->crtcs = kcalloc(dev->mode_config.num_crtc,
 			       sizeof(*state->crtcs), GFP_KERNEL);
 	if (!state->crtcs)
@@ -83,16 +81,6 @@ drm_atomic_state_init(struct drm_device *dev, struct drm_atomic_state *state)
 				      sizeof(*state->plane_states), GFP_KERNEL);
 	if (!state->plane_states)
 		goto fail;
-	state->connectors = kcalloc(state->num_connector,
-				    sizeof(*state->connectors),
-				    GFP_KERNEL);
-	if (!state->connectors)
-		goto fail;
-	state->connector_states = kcalloc(state->num_connector,
-					  sizeof(*state->connector_states),
-					  GFP_KERNEL);
-	if (!state->connector_states)
-		goto fail;
 
 	state->dev = dev;
 
@@ -823,19 +811,27 @@ drm_atomic_get_connector_state(struct drm_atomic_state *state,
 
 	index = drm_connector_index(connector);
 
-	/*
-	 * Construction of atomic state updates can race with a connector
-	 * hot-add which might overflow. In this case flip the table and just
-	 * restart the entire ioctl - no one is fast enough to livelock a cpu
-	 * with physical hotplug events anyway.
-	 *
-	 * Note that we only grab the indexes once we have the right lock to
-	 * prevent hotplug/unplugging of connectors. So removal is no problem,
-	 * at most the array is a bit too large.
-	 */
 	if (index >= state->num_connector) {
-		DRM_DEBUG_ATOMIC("Hot-added connector would overflow state array, restarting\n");
-		return ERR_PTR(-EAGAIN);
+		struct drm_connector **c;
+		struct drm_connector_state **cs;
+		int alloc = max(index + 1, config->num_connector);
+
+		c = krealloc(state->connectors, alloc * sizeof(*state->connectors), GFP_KERNEL);
+		if (!c)
+			return ERR_PTR(-ENOMEM);
+
+		state->connectors = c;
+		memset(&state->connectors[state->num_connector], 0,
+		       sizeof(*state->connectors) * (alloc - state->num_connector));
+
+		cs = krealloc(state->connector_states, alloc * sizeof(*state->connector_states), GFP_KERNEL);
+		if (!cs)
+			return ERR_PTR(-ENOMEM);
+
+		state->connector_states = cs;
+		memset(&state->connector_states[state->num_connector], 0,
+		       sizeof(*state->connector_states) * (alloc - state->num_connector));
+		state->num_connector = alloc;
 	}
 
 	if (state->connector_states[index])
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 7c52306..4f2d3e1 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1493,7 +1493,7 @@ void drm_atomic_helper_swap_state(struct drm_device *dev,
 {
 	int i;
 
-	for (i = 0; i < dev->mode_config.num_connector; i++) {
+	for (i = 0; i < state->num_connector; i++) {
 		struct drm_connector *connector = state->connectors[i];
 
 		if (!connector)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index d40bab2..f619121 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -918,12 +918,19 @@ int drm_connector_init(struct drm_device *dev,
 	connector->base.properties = &connector->properties;
 	connector->dev = dev;
 	connector->funcs = funcs;
+
+	connector->connector_id = ida_simple_get(&config->connector_ida, 0, 0, GFP_KERNEL);
+	if (connector->connector_id < 0) {
+		ret = connector->connector_id;
+		goto out_put;
+	}
+
 	connector->connector_type = connector_type;
 	connector->connector_type_id =
 		ida_simple_get(connector_ida, 1, 0, GFP_KERNEL);
 	if (connector->connector_type_id < 0) {
 		ret = connector->connector_type_id;
-		goto out_put;
+		goto out_put_id;
 	}
 	connector->name =
 		kasprintf(GFP_KERNEL, "%s-%d",
@@ -931,7 +938,7 @@ int drm_connector_init(struct drm_device *dev,
 			  connector->connector_type_id);
 	if (!connector->name) {
 		ret = -ENOMEM;
-		goto out_put;
+		goto out_put_type_id;
 	}
 
 	INIT_LIST_HEAD(&connector->probed_modes);
@@ -959,7 +966,12 @@ int drm_connector_init(struct drm_device *dev,
 	}
 
 	connector->debugfs_entry = NULL;
-
+out_put_type_id:
+	if (ret)
+		ida_remove(connector_ida, connector->connector_type_id);
+out_put_id:
+	if (ret)
+		ida_remove(&config->connector_ida, connector->connector_id);
 out_put:
 	if (ret)
 		drm_mode_object_put(dev, &connector->base);
@@ -996,6 +1008,9 @@ void drm_connector_cleanup(struct drm_connector *connector)
 	ida_remove(&drm_connector_enum_list[connector->connector_type].ida,
 		   connector->connector_type_id);
 
+	ida_remove(&dev->mode_config.connector_ida,
+		   connector->connector_id);
+
 	kfree(connector->display_info.bus_formats);
 	drm_mode_object_put(dev, &connector->base);
 	kfree(connector->name);
@@ -1013,32 +1028,6 @@ void drm_connector_cleanup(struct drm_connector *connector)
 EXPORT_SYMBOL(drm_connector_cleanup);
 
 /**
- * drm_connector_index - find the index of a registered connector
- * @connector: connector to find index for
- *
- * Given a registered connector, return the index of that connector within a DRM
- * device's list of connectors.
- */
-unsigned int drm_connector_index(struct drm_connector *connector)
-{
-	unsigned int index = 0;
-	struct drm_connector *tmp;
-	struct drm_mode_config *config = &connector->dev->mode_config;
-
-	WARN_ON(!drm_modeset_is_locked(&config->connection_mutex));
-
-	drm_for_each_connector(tmp, connector->dev) {
-		if (tmp == connector)
-			return index;
-
-		index++;
-	}
-
-	BUG();
-}
-EXPORT_SYMBOL(drm_connector_index);
-
-/**
  * drm_connector_register - register a connector
  * @connector: the connector to register
  *
@@ -5789,6 +5778,7 @@ void drm_mode_config_init(struct drm_device *dev)
 	INIT_LIST_HEAD(&dev->mode_config.plane_list);
 	idr_init(&dev->mode_config.crtc_idr);
 	idr_init(&dev->mode_config.tile_idr);
+	ida_init(&dev->mode_config.connector_ida);
 
 	drm_modeset_lock_all(dev);
 	drm_mode_create_standard_properties(dev);
@@ -5869,6 +5859,7 @@ void drm_mode_config_cleanup(struct drm_device *dev)
 		crtc->funcs->destroy(crtc);
 	}
 
+	ida_destroy(&dev->mode_config.connector_ida);
 	idr_destroy(&dev->mode_config.tile_idr);
 	idr_destroy(&dev->mode_config.crtc_idr);
 	drm_modeset_lock_fini(&dev->mode_config.connection_mutex);
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 8ae13de..27fbd79 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1159,11 +1159,13 @@ static void drm_dp_add_port(struct drm_dp_mst_branch *mstb,
 			drm_dp_put_port(port);
 			goto out;
 		}
-
-		drm_mode_connector_set_tile_property(port->connector);
-
+		if (port->port_num >= DP_MST_LOGICAL_PORT_0) {
+			port->cached_edid = drm_get_edid(port->connector, &port->aux.ddc);
+			drm_mode_connector_set_tile_property(port->connector);
+		}
 		(*mstb->mgr->cbs->register_connector)(port->connector);
 	}
+
 out:
 	/* put reference to this port */
 	drm_dp_put_port(port);
@@ -1188,8 +1190,8 @@ static void drm_dp_update_port(struct drm_dp_mst_branch *mstb,
 	port->ddps = conn_stat->displayport_device_plug_status;
 
 	if (old_ddps != port->ddps) {
-		dowork = true;
 		if (port->ddps) {
+			dowork = true;
 		} else {
 			port->available_pbn = 0;
 		}
@@ -1294,13 +1296,8 @@ static void drm_dp_check_and_send_link_address(struct drm_dp_mst_topology_mgr *m
 		if (port->input)
 			continue;
 
-		if (!port->ddps) {
-			if (port->cached_edid) {
-				kfree(port->cached_edid);
-				port->cached_edid = NULL;
-			}
+		if (!port->ddps)
 			continue;
-		}
 
 		if (!port->available_pbn)
 			drm_dp_send_enum_path_resources(mgr, mstb, port);
@@ -1311,12 +1308,6 @@ static void drm_dp_check_and_send_link_address(struct drm_dp_mst_topology_mgr *m
 				drm_dp_check_and_send_link_address(mgr, mstb_child);
 				drm_dp_put_mst_branch_device(mstb_child);
 			}
-		} else if (port->pdt == DP_PEER_DEVICE_SST_SINK ||
-			port->pdt == DP_PEER_DEVICE_DP_LEGACY_CONV) {
-			if (!port->cached_edid) {
-				port->cached_edid =
-					drm_get_edid(port->connector, &port->aux.ddc);
-			}
 		}
 	}
 }
@@ -1336,8 +1327,6 @@ static void drm_dp_mst_link_probe_work(struct work_struct *work)
 		drm_dp_check_and_send_link_address(mgr, mstb);
 		drm_dp_put_mst_branch_device(mstb);
 	}
-
-	(*mgr->cbs->hotplug)(mgr);
 }
 
 static bool drm_dp_validate_guid(struct drm_dp_mst_topology_mgr *mgr,
@@ -1597,6 +1586,7 @@ static void drm_dp_send_link_address(struct drm_dp_mst_topology_mgr *mgr,
 			for (i = 0; i < txmsg->reply.u.link_addr.nports; i++) {
 				drm_dp_add_port(mstb, mgr->dev, &txmsg->reply.u.link_addr.ports[i]);
 			}
+			(*mgr->cbs->hotplug)(mgr);
 		}
 	} else {
 		mstb->link_address_sent = false;
@@ -2293,6 +2283,8 @@ static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
 			drm_dp_update_port(mstb, &msg.u.conn_stat);
 
 			DRM_DEBUG_KMS("Got CSN: pn: %d ldps:%d ddps: %d mcs: %d ip: %d pdt: %d\n", msg.u.conn_stat.port_number, msg.u.conn_stat.legacy_device_plug_status, msg.u.conn_stat.displayport_device_plug_status, msg.u.conn_stat.message_capability_status, msg.u.conn_stat.input_port, msg.u.conn_stat.peer_device_type);
+			(*mgr->cbs->hotplug)(mgr);
+
 		} else if (msg.req_type == DP_RESOURCE_STATUS_NOTIFY) {
 			drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, msg.req_type, seqno, false);
 			if (!mstb)
@@ -2379,6 +2371,10 @@ enum drm_connector_status drm_dp_mst_detect_port(struct drm_connector *connector
 
 	case DP_PEER_DEVICE_SST_SINK:
 		status = connector_status_connected;
+		/* for logical ports - cache the EDID */
+		if (port->port_num >= 8 && !port->cached_edid) {
+			port->cached_edid = drm_get_edid(connector, &port->aux.ddc);
+		}
 		break;
 	case DP_PEER_DEVICE_DP_LEGACY_CONV:
 		if (port->ldps)
@@ -2433,7 +2429,10 @@ struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_
 
 	if (port->cached_edid)
 		edid = drm_edid_duplicate(port->cached_edid);
-
+	else {
+		edid = drm_get_edid(connector, &port->aux.ddc);
+		drm_mode_connector_set_tile_property(connector);
+	}
 	port->has_audio = drm_detect_monitor_audio(edid);
 	drm_dp_put_port(port);
 	return edid;
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index d12a4ef..1fe1457 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -224,6 +224,64 @@ static void drm_update_vblank_count(struct drm_device *dev, unsigned int pipe,
 		diff = (flags & DRM_CALLED_FROM_VBLIRQ) != 0;
 	}
 
+	/*
+	 * Within a drm_vblank_pre_modeset - drm_vblank_post_modeset
+	 * interval? If so then vblank irqs keep running and it will likely
+	 * happen that the hardware vblank counter is not trustworthy as it
+	 * might reset at some point in that interval and vblank timestamps
+	 * are not trustworthy either in that interval. Iow. this can result
+	 * in a bogus diff >> 1 which must be avoided as it would cause
+	 * random large forward jumps of the software vblank counter.
+	 */
+	if (diff > 1 && (vblank->inmodeset & 0x2)) {
+		DRM_DEBUG_VBL("clamping vblank bump to 1 on crtc %u: diffr=%u"
+			      " due to pre-modeset.\n", pipe, diff);
+		diff = 1;
+	}
+
+	/*
+	 * FIMXE: Need to replace this hack with proper seqlocks.
+	 *
+	 * Restrict the bump of the software vblank counter to a safe maximum
+	 * value of +1 whenever there is the possibility that concurrent readers
+	 * of vblank timestamps could be active at the moment, as the current
+	 * implementation of the timestamp caching and updating is not safe
+	 * against concurrent readers for calls to store_vblank() with a bump
+	 * of anything but +1. A bump != 1 would very likely return corrupted
+	 * timestamps to userspace, because the same slot in the cache could
+	 * be concurrently written by store_vblank() and read by one of those
+	 * readers without the read-retry logic detecting the collision.
+	 *
+	 * Concurrent readers can exist when we are called from the
+	 * drm_vblank_off() or drm_vblank_on() functions and other non-vblank-
+	 * irq callers. However, all those calls to us are happening with the
+	 * vbl_lock locked to prevent drm_vblank_get(), so the vblank refcount
+	 * can't increase while we are executing. Therefore a zero refcount at
+	 * this point is safe for arbitrary counter bumps if we are called
+	 * outside vblank irq, a non-zero count is not 100% safe. Unfortunately
+	 * we must also accept a refcount of 1, as whenever we are called from
+	 * drm_vblank_get() -> drm_vblank_enable() the refcount will be 1 and
+	 * we must let that one pass through in order to not lose vblank counts
+	 * during vblank irq off - which would completely defeat the whole
+	 * point of this routine.
+	 *
+	 * Whenever we are called from vblank irq, we have to assume concurrent
+	 * readers exist or can show up any time during our execution, even if
+	 * the refcount is currently zero, as vblank irqs are usually only
+	 * enabled due to the presence of readers, and because when we are called
+	 * from vblank irq we can't hold the vbl_lock to protect us from sudden
+	 * bumps in vblank refcount. Therefore also restrict bumps to +1 when
+	 * called from vblank irq.
+	 */
+	if ((diff > 1) && (atomic_read(&vblank->refcount) > 1 ||
+	    (flags & DRM_CALLED_FROM_VBLIRQ))) {
+		DRM_DEBUG_VBL("clamping vblank bump to 1 on crtc %u: diffr=%u "
+			      "refcount %u, vblirq %u\n", pipe, diff,
+			      atomic_read(&vblank->refcount),
+			      (flags & DRM_CALLED_FROM_VBLIRQ) != 0);
+		diff = 1;
+	}
+
 	DRM_DEBUG_VBL("updating vblank count on crtc %u:"
 		      " current=%u, diff=%u, hw=%u hw_last=%u\n",
 		      pipe, vblank->count, diff, cur_vblank, vblank->last);
@@ -1316,7 +1374,13 @@ void drm_vblank_off(struct drm_device *dev, unsigned int pipe)
 	spin_lock_irqsave(&dev->event_lock, irqflags);
 
 	spin_lock(&dev->vbl_lock);
-	vblank_disable_and_save(dev, pipe);
+	DRM_DEBUG_VBL("crtc %d, vblank enabled %d, inmodeset %d\n",
+		      pipe, vblank->enabled, vblank->inmodeset);
+
+	/* Avoid redundant vblank disables without previous drm_vblank_on(). */
+	if (drm_core_check_feature(dev, DRIVER_ATOMIC) || !vblank->inmodeset)
+		vblank_disable_and_save(dev, pipe);
+
 	wake_up(&vblank->queue);
 
 	/*
@@ -1418,6 +1482,9 @@ void drm_vblank_on(struct drm_device *dev, unsigned int pipe)
 		return;
 
 	spin_lock_irqsave(&dev->vbl_lock, irqflags);
+	DRM_DEBUG_VBL("crtc %d, vblank enabled %d, inmodeset %d\n",
+		      pipe, vblank->enabled, vblank->inmodeset);
+
 	/* Drop our private "prevent drm_vblank_get" refcount */
 	if (vblank->inmodeset) {
 		atomic_dec(&vblank->refcount);
@@ -1430,8 +1497,7 @@ void drm_vblank_on(struct drm_device *dev, unsigned int pipe)
 	 * re-enable interrupts if there are users left, or the
 	 * user wishes vblank interrupts to be enabled all the time.
 	 */
-	if (atomic_read(&vblank->refcount) != 0 ||
-	    (!dev->vblank_disable_immediate && drm_vblank_offdelay == 0))
+	if (atomic_read(&vblank->refcount) != 0 || drm_vblank_offdelay == 0)
 		WARN_ON(drm_vblank_enable(dev, pipe));
 	spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
 }
@@ -1526,6 +1592,7 @@ void drm_vblank_post_modeset(struct drm_device *dev, unsigned int pipe)
 	if (vblank->inmodeset) {
 		spin_lock_irqsave(&dev->vbl_lock, irqflags);
 		dev->vblank_disable_allowed = true;
+		drm_reset_vblank_timestamp(dev, pipe);
 		spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
 
 		if (vblank->inmodeset & 0x2)
diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
index 83efca9..f17d392 100644
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@@ -1,6 +1,6 @@
 config DRM_EXYNOS
 	tristate "DRM Support for Samsung SoC EXYNOS Series"
-	depends on OF && DRM && (PLAT_SAMSUNG || ARCH_MULTIPLATFORM)
+	depends on OF && DRM && (ARCH_S3C64XX || ARCH_EXYNOS || ARCH_MULTIPLATFORM)
 	select DRM_KMS_HELPER
 	select DRM_KMS_FB_HELPER
 	select FB_CFB_FILLRECT
diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
index 1bf6a21..162ab93 100644
--- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
@@ -93,7 +93,7 @@ static int decon_enable_vblank(struct exynos_drm_crtc *crtc)
 	if (test_bit(BIT_SUSPENDED, &ctx->flags))
 		return -EPERM;
 
-	if (test_and_set_bit(BIT_IRQS_ENABLED, &ctx->flags)) {
+	if (!test_and_set_bit(BIT_IRQS_ENABLED, &ctx->flags)) {
 		val = VIDINTCON0_INTEN;
 		if (ctx->out_type == IFTYPE_I80)
 			val |= VIDINTCON0_FRAMEDONE;
@@ -402,8 +402,6 @@ static void decon_enable(struct exynos_drm_crtc *crtc)
 		decon_enable_vblank(ctx->crtc);
 
 	decon_commit(ctx->crtc);
-
-	set_bit(BIT_SUSPENDED, &ctx->flags);
 }
 
 static void decon_disable(struct exynos_drm_crtc *crtc)
@@ -582,9 +580,9 @@ out:
 static int exynos5433_decon_suspend(struct device *dev)
 {
 	struct decon_context *ctx = dev_get_drvdata(dev);
-	int i;
+	int i = ARRAY_SIZE(decon_clks_name);
 
-	for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++)
+	while (--i >= 0)
 		clk_disable_unprepare(ctx->clks[i]);
 
 	return 0;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index e977a81..26e81d19 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1782,6 +1782,7 @@ static int exynos_dsi_bind(struct device *dev, struct device *master,
 
 	bridge = of_drm_find_bridge(dsi->bridge_node);
 	if (bridge) {
+		encoder->bridge = bridge;
 		drm_bridge_attach(drm_dev, bridge);
 	}
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index f6118ba..8baabd8 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -50,7 +50,7 @@ static int exynos_drm_fb_mmap(struct fb_info *info,
 	if (vm_size > exynos_gem->size)
 		return -EINVAL;
 
-	ret = dma_mmap_attrs(helper->dev->dev, vma, exynos_gem->pages,
+	ret = dma_mmap_attrs(helper->dev->dev, vma, exynos_gem->cookie,
 			     exynos_gem->dma_addr, exynos_gem->size,
 			     &exynos_gem->dma_attrs);
 	if (ret < 0) {
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
index c747824..8a4f4a0 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
@@ -1723,7 +1723,7 @@ static int fimc_probe(struct platform_device *pdev)
 		goto err_put_clk;
 	}
 
-	DRM_DEBUG_KMS("id[%d]ippdrv[0x%x]\n", ctx->id, (int)ippdrv);
+	DRM_DEBUG_KMS("id[%d]ippdrv[%p]\n", ctx->id, ippdrv);
 
 	spin_lock_init(&ctx->lock);
 	platform_set_drvdata(pdev, ctx);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index c17efdb..8dfe6e1 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -1166,7 +1166,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
 		goto err_free_event;
 	}
 
-	cmd = (struct drm_exynos_g2d_cmd *)(uint32_t)req->cmd;
+	cmd = (struct drm_exynos_g2d_cmd *)(unsigned long)req->cmd;
 
 	if (copy_from_user(cmdlist->data + cmdlist->last,
 				(void __user *)cmd,
@@ -1184,7 +1184,8 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
 	if (req->cmd_buf_nr) {
 		struct drm_exynos_g2d_cmd *cmd_buf;
 
-		cmd_buf = (struct drm_exynos_g2d_cmd *)(uint32_t)req->cmd_buf;
+		cmd_buf = (struct drm_exynos_g2d_cmd *)
+				(unsigned long)req->cmd_buf;
 
 		if (copy_from_user(cmdlist->data + cmdlist->last,
 					(void __user *)cmd_buf,
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 32358c5..26b5e4b 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -218,7 +218,7 @@ static struct exynos_drm_gem *exynos_drm_gem_init(struct drm_device *dev,
 		return ERR_PTR(ret);
 	}
 
-	DRM_DEBUG_KMS("created file object = 0x%x\n", (unsigned int)obj->filp);
+	DRM_DEBUG_KMS("created file object = %p\n", obj->filp);
 
 	return exynos_gem;
 }
@@ -335,7 +335,7 @@ static int exynos_drm_gem_mmap_buffer(struct exynos_drm_gem *exynos_gem,
 	if (vm_size > exynos_gem->size)
 		return -EINVAL;
 
-	ret = dma_mmap_attrs(drm_dev->dev, vma, exynos_gem->pages,
+	ret = dma_mmap_attrs(drm_dev->dev, vma, exynos_gem->cookie,
 			     exynos_gem->dma_addr, exynos_gem->size,
 			     &exynos_gem->dma_attrs);
 	if (ret < 0) {
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
index 7aecd23..5d20da8 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -1723,7 +1723,7 @@ static int gsc_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	DRM_DEBUG_KMS("id[%d]ippdrv[0x%x]\n", ctx->id, (int)ippdrv);
+	DRM_DEBUG_KMS("id[%d]ippdrv[%p]\n", ctx->id, ippdrv);
 
 	mutex_init(&ctx->lock);
 	platform_set_drvdata(pdev, ctx);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/drivers/gpu/drm/exynos/exynos_drm_ipp.c
index 67d2423..95eeb91 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_ipp.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.c
@@ -208,7 +208,7 @@ static struct exynos_drm_ippdrv *ipp_find_drv_by_handle(u32 prop_id)
 	 * e.g PAUSE state, queue buf, command control.
 	 */
 	list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
-		DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]\n", count++, (int)ippdrv);
+		DRM_DEBUG_KMS("count[%d]ippdrv[%p]\n", count++, ippdrv);
 
 		mutex_lock(&ippdrv->cmd_lock);
 		list_for_each_entry(c_node, &ippdrv->cmd_list, list) {
@@ -388,8 +388,8 @@ int exynos_drm_ipp_set_property(struct drm_device *drm_dev, void *data,
 	}
 	property->prop_id = ret;
 
-	DRM_DEBUG_KMS("created prop_id[%d]cmd[%d]ippdrv[0x%x]\n",
-		property->prop_id, property->cmd, (int)ippdrv);
+	DRM_DEBUG_KMS("created prop_id[%d]cmd[%d]ippdrv[%p]\n",
+		property->prop_id, property->cmd, ippdrv);
 
 	/* stored property information and ippdrv in private data */
 	c_node->property = *property;
@@ -518,7 +518,7 @@ static int ipp_put_mem_node(struct drm_device *drm_dev,
 {
 	int i;
 
-	DRM_DEBUG_KMS("node[0x%x]\n", (int)m_node);
+	DRM_DEBUG_KMS("node[%p]\n", m_node);
 
 	if (!m_node) {
 		DRM_ERROR("invalid dequeue node.\n");
@@ -562,7 +562,7 @@ static struct drm_exynos_ipp_mem_node
 	m_node->buf_id = qbuf->buf_id;
 	INIT_LIST_HEAD(&m_node->list);
 
-	DRM_DEBUG_KMS("m_node[0x%x]ops_id[%d]\n", (int)m_node, qbuf->ops_id);
+	DRM_DEBUG_KMS("m_node[%p]ops_id[%d]\n", m_node, qbuf->ops_id);
 	DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]\n", qbuf->prop_id, m_node->buf_id);
 
 	for_each_ipp_planar(i) {
@@ -582,8 +582,8 @@ static struct drm_exynos_ipp_mem_node
 
 			buf_info->handles[i] = qbuf->handle[i];
 			buf_info->base[i] = *addr;
-			DRM_DEBUG_KMS("i[%d]base[0x%x]hd[0x%lx]\n", i,
-				      buf_info->base[i], buf_info->handles[i]);
+			DRM_DEBUG_KMS("i[%d]base[%pad]hd[0x%lx]\n", i,
+				      &buf_info->base[i], buf_info->handles[i]);
 		}
 	}
 
@@ -664,7 +664,7 @@ static void ipp_put_event(struct drm_exynos_ipp_cmd_node *c_node,
 
 	mutex_lock(&c_node->event_lock);
 	list_for_each_entry_safe(e, te, &c_node->event_list, base.link) {
-		DRM_DEBUG_KMS("count[%d]e[0x%x]\n", count++, (int)e);
+		DRM_DEBUG_KMS("count[%d]e[%p]\n", count++, e);
 
 		/*
 		 * qbuf == NULL condition means all event deletion.
@@ -755,7 +755,7 @@ static struct drm_exynos_ipp_mem_node
 
 	/* find memory node from memory list */
 	list_for_each_entry(m_node, head, list) {
-		DRM_DEBUG_KMS("count[%d]m_node[0x%x]\n", count++, (int)m_node);
+		DRM_DEBUG_KMS("count[%d]m_node[%p]\n", count++, m_node);
 
 		/* compare buffer id */
 		if (m_node->buf_id == qbuf->buf_id)
@@ -772,7 +772,7 @@ static int ipp_set_mem_node(struct exynos_drm_ippdrv *ippdrv,
 	struct exynos_drm_ipp_ops *ops = NULL;
 	int ret = 0;
 
-	DRM_DEBUG_KMS("node[0x%x]\n", (int)m_node);
+	DRM_DEBUG_KMS("node[%p]\n", m_node);
 
 	if (!m_node) {
 		DRM_ERROR("invalid queue node.\n");
@@ -1237,7 +1237,7 @@ static int ipp_start_property(struct exynos_drm_ippdrv *ippdrv,
 			m_node = list_first_entry(head,
 				struct drm_exynos_ipp_mem_node, list);
 
-			DRM_DEBUG_KMS("m_node[0x%x]\n", (int)m_node);
+			DRM_DEBUG_KMS("m_node[%p]\n", m_node);
 
 			ret = ipp_set_mem_node(ippdrv, c_node, m_node);
 			if (ret) {
@@ -1610,8 +1610,8 @@ static int ipp_subdrv_probe(struct drm_device *drm_dev, struct device *dev)
 		}
 		ippdrv->prop_list.ipp_id = ret;
 
-		DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]ipp_id[%d]\n",
-			count++, (int)ippdrv, ret);
+		DRM_DEBUG_KMS("count[%d]ippdrv[%p]ipp_id[%d]\n",
+			count++, ippdrv, ret);
 
 		/* store parent device for node */
 		ippdrv->parent_dev = dev;
@@ -1668,7 +1668,7 @@ static int ipp_subdrv_open(struct drm_device *drm_dev, struct device *dev,
 
 	file_priv->ipp_dev = dev;
 
-	DRM_DEBUG_KMS("done priv[0x%x]\n", (int)dev);
+	DRM_DEBUG_KMS("done priv[%p]\n", dev);
 
 	return 0;
 }
@@ -1685,8 +1685,8 @@ static void ipp_subdrv_close(struct drm_device *drm_dev, struct device *dev,
 		mutex_lock(&ippdrv->cmd_lock);
 		list_for_each_entry_safe(c_node, tc_node,
 			&ippdrv->cmd_list, list) {
-			DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]\n",
-				count++, (int)ippdrv);
+			DRM_DEBUG_KMS("count[%d]ippdrv[%p]\n",
+				count++, ippdrv);
 
 			if (c_node->filp == file) {
 				/*
diff --git a/drivers/gpu/drm/exynos/exynos_drm_mic.c b/drivers/gpu/drm/exynos/exynos_drm_mic.c
index 4eaef36..9869d70 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_mic.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_mic.c
@@ -18,6 +18,7 @@
 #include <linux/of.h>
 #include <linux/of_graph.h>
 #include <linux/clk.h>
+#include <linux/component.h>
 #include <drm/drmP.h>
 #include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
@@ -306,9 +307,9 @@ exit:
 	return ret;
 }
 
-void mic_disable(struct drm_bridge *bridge) { }
+static void mic_disable(struct drm_bridge *bridge) { }
 
-void mic_post_disable(struct drm_bridge *bridge)
+static void mic_post_disable(struct drm_bridge *bridge)
 {
 	struct exynos_mic *mic = bridge->driver_private;
 	int i;
@@ -328,7 +329,7 @@ already_disabled:
 	mutex_unlock(&mic_mutex);
 }
 
-void mic_pre_enable(struct drm_bridge *bridge)
+static void mic_pre_enable(struct drm_bridge *bridge)
 {
 	struct exynos_mic *mic = bridge->driver_private;
 	int ret, i;
@@ -371,11 +372,35 @@ already_enabled:
 	mutex_unlock(&mic_mutex);
 }
 
-void mic_enable(struct drm_bridge *bridge) { }
+static void mic_enable(struct drm_bridge *bridge) { }
 
-void mic_destroy(struct drm_bridge *bridge)
+static const struct drm_bridge_funcs mic_bridge_funcs = {
+	.disable = mic_disable,
+	.post_disable = mic_post_disable,
+	.pre_enable = mic_pre_enable,
+	.enable = mic_enable,
+};
+
+static int exynos_mic_bind(struct device *dev, struct device *master,
+			   void *data)
 {
-	struct exynos_mic *mic = bridge->driver_private;
+	struct exynos_mic *mic = dev_get_drvdata(dev);
+	int ret;
+
+	mic->bridge.funcs = &mic_bridge_funcs;
+	mic->bridge.of_node = dev->of_node;
+	mic->bridge.driver_private = mic;
+	ret = drm_bridge_add(&mic->bridge);
+	if (ret)
+		DRM_ERROR("mic: Failed to add MIC to the global bridge list\n");
+
+	return ret;
+}
+
+static void exynos_mic_unbind(struct device *dev, struct device *master,
+			      void *data)
+{
+	struct exynos_mic *mic = dev_get_drvdata(dev);
 	int i;
 
 	mutex_lock(&mic_mutex);
@@ -387,16 +412,16 @@ void mic_destroy(struct drm_bridge *bridge)
 
 already_disabled:
 	mutex_unlock(&mic_mutex);
+
+	drm_bridge_remove(&mic->bridge);
 }
 
-static const struct drm_bridge_funcs mic_bridge_funcs = {
-	.disable = mic_disable,
-	.post_disable = mic_post_disable,
-	.pre_enable = mic_pre_enable,
-	.enable = mic_enable,
+static const struct component_ops exynos_mic_component_ops = {
+	.bind	= exynos_mic_bind,
+	.unbind	= exynos_mic_unbind,
 };
 
-int exynos_mic_probe(struct platform_device *pdev)
+static int exynos_mic_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct exynos_mic *mic;
@@ -435,17 +460,8 @@ int exynos_mic_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	mic->bridge.funcs = &mic_bridge_funcs;
-	mic->bridge.of_node = dev->of_node;
-	mic->bridge.driver_private = mic;
-	ret = drm_bridge_add(&mic->bridge);
-	if (ret) {
-		DRM_ERROR("mic: Failed to add MIC to the global bridge list\n");
-		goto err;
-	}
-
 	for (i = 0; i < NUM_CLKS; i++) {
-		mic->clks[i] = of_clk_get_by_name(dev->of_node, clk_names[i]);
+		mic->clks[i] = devm_clk_get(dev, clk_names[i]);
 		if (IS_ERR(mic->clks[i])) {
 			DRM_ERROR("mic: Failed to get clock (%s)\n",
 								clk_names[i]);
@@ -454,7 +470,10 @@ int exynos_mic_probe(struct platform_device *pdev)
 		}
 	}
 
+	platform_set_drvdata(pdev, mic);
+
 	DRM_DEBUG_KMS("MIC has been probed\n");
+	return component_add(dev, &exynos_mic_component_ops);
 
 err:
 	return ret;
@@ -462,14 +481,7 @@ err:
 
 static int exynos_mic_remove(struct platform_device *pdev)
 {
-	struct exynos_mic *mic = platform_get_drvdata(pdev);
-	int i;
-
-	drm_bridge_remove(&mic->bridge);
-
-	for (i = NUM_CLKS - 1; i > -1; i--)
-		clk_put(mic->clks[i]);
-
+	component_del(&pdev->dev, &exynos_mic_component_ops);
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
index bea0f78..ce59f44 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
@@ -754,7 +754,7 @@ static int rotator_probe(struct platform_device *pdev)
 		goto err_ippdrv_register;
 	}
 
-	DRM_DEBUG_KMS("ippdrv[0x%x]\n", (int)ippdrv);
+	DRM_DEBUG_KMS("ippdrv[%p]\n", ippdrv);
 
 	platform_set_drvdata(pdev, rot);
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index 62ac4e5..b605bd7 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -223,7 +223,7 @@ static void vidi_fake_vblank_handler(struct work_struct *work)
 	}
 }
 
-static int vidi_show_connection(struct device *dev,
+static ssize_t vidi_show_connection(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
 	struct vidi_context *ctx = dev_get_drvdata(dev);
@@ -238,7 +238,7 @@ static int vidi_show_connection(struct device *dev,
 	return rc;
 }
 
-static int vidi_store_connection(struct device *dev,
+static ssize_t vidi_store_connection(struct device *dev,
 				struct device_attribute *attr,
 				const char *buf, size_t len)
 {
@@ -294,7 +294,9 @@ int vidi_connection_ioctl(struct drm_device *drm_dev, void *data,
 	}
 
 	if (vidi->connection) {
-		struct edid *raw_edid  = (struct edid *)(uint32_t)vidi->edid;
+		struct edid *raw_edid;
+
+		raw_edid = (struct edid *)(unsigned long)vidi->edid;
 		if (!drm_edid_is_valid(raw_edid)) {
 			DRM_DEBUG_KMS("edid data is invalid.\n");
 			return -EINVAL;
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 0fc38bb..cf39ed3 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -825,8 +825,11 @@ static int i915_interrupt_info(struct seq_file *m, void *data)
 		}
 
 		for_each_pipe(dev_priv, pipe) {
-			if (!intel_display_power_is_enabled(dev_priv,
-						POWER_DOMAIN_PIPE(pipe))) {
+			enum intel_display_power_domain power_domain;
+
+			power_domain = POWER_DOMAIN_PIPE(pipe);
+			if (!intel_display_power_get_if_enabled(dev_priv,
+								power_domain)) {
 				seq_printf(m, "Pipe %c power disabled\n",
 					   pipe_name(pipe));
 				continue;
@@ -840,6 +843,8 @@ static int i915_interrupt_info(struct seq_file *m, void *data)
 			seq_printf(m, "Pipe %c IER:\t%08x\n",
 				   pipe_name(pipe),
 				   I915_READ(GEN8_DE_PIPE_IER(pipe)));
+
+			intel_display_power_put(dev_priv, power_domain);
 		}
 
 		seq_printf(m, "Display Engine port interrupt mask:\t%08x\n",
@@ -3985,6 +3990,7 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
 	struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
 	struct intel_crtc *crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev,
 									pipe));
+	enum intel_display_power_domain power_domain;
 	u32 val = 0; /* shut up gcc */
 	int ret;
 
@@ -3995,7 +4001,8 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
 	if (pipe_crc->source && source)
 		return -EINVAL;
 
-	if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PIPE(pipe))) {
+	power_domain = POWER_DOMAIN_PIPE(pipe);
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain)) {
 		DRM_DEBUG_KMS("Trying to capture CRC while pipe is off\n");
 		return -EIO;
 	}
@@ -4012,7 +4019,7 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
 		ret = ivb_pipe_crc_ctl_reg(dev, pipe, &source, &val);
 
 	if (ret != 0)
-		return ret;
+		goto out;
 
 	/* none -> real source transition */
 	if (source) {
@@ -4024,8 +4031,10 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
 		entries = kcalloc(INTEL_PIPE_CRC_ENTRIES_NR,
 				  sizeof(pipe_crc->entries[0]),
 				  GFP_KERNEL);
-		if (!entries)
-			return -ENOMEM;
+		if (!entries) {
+			ret = -ENOMEM;
+			goto out;
+		}
 
 		/*
 		 * When IPS gets enabled, the pipe CRC changes. Since IPS gets
@@ -4081,7 +4090,12 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
 		hsw_enable_ips(crtc);
 	}
 
-	return 0;
+	ret = 0;
+
+out:
+	intel_display_power_put(dev_priv, power_domain);
+
+	return ret;
 }
 
 /*
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index f0f75d7..b0847b9 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -751,6 +751,7 @@ struct intel_csr {
 	uint32_t mmio_count;
 	i915_reg_t mmioaddr[8];
 	uint32_t mmiodata[8];
+	uint32_t dc_state;
 };
 
 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
@@ -1988,6 +1989,9 @@ enum hdmi_force_audio {
 #define I915_GTT_OFFSET_NONE ((u32)-1)
 
 struct drm_i915_gem_object_ops {
+	unsigned int flags;
+#define I915_GEM_OBJECT_HAS_STRUCT_PAGE 0x1
+
 	/* Interface between the GEM object and its backing storage.
 	 * get_pages() is called once prior to the use of the associated set
 	 * of pages before to binding them into the GTT, and put_pages() is
@@ -2003,6 +2007,7 @@ struct drm_i915_gem_object_ops {
 	 */
 	int (*get_pages)(struct drm_i915_gem_object *);
 	void (*put_pages)(struct drm_i915_gem_object *);
+
 	int (*dmabuf_export)(struct drm_i915_gem_object *);
 	void (*release)(struct drm_i915_gem_object *);
 };
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index ddc21d4..bb44bad 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4425,6 +4425,7 @@ void i915_gem_object_init(struct drm_i915_gem_object *obj,
 }
 
 static const struct drm_i915_gem_object_ops i915_gem_object_ops = {
+	.flags = I915_GEM_OBJECT_HAS_STRUCT_PAGE,
 	.get_pages = i915_gem_object_get_pages_gtt,
 	.put_pages = i915_gem_object_put_pages_gtt,
 };
@@ -5261,7 +5262,7 @@ i915_gem_object_get_dirty_page(struct drm_i915_gem_object *obj, int n)
 	struct page *page;
 
 	/* Only default objects have per-page dirty tracking */
-	if (WARN_ON(obj->ops != &i915_gem_object_ops))
+	if (WARN_ON((obj->ops->flags & I915_GEM_OBJECT_HAS_STRUCT_PAGE) == 0))
 		return NULL;
 
 	page = i915_gem_object_get_page(obj, n);
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c
index 19fb0bdd..59e45b3 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -789,9 +789,10 @@ i915_gem_userptr_dmabuf_export(struct drm_i915_gem_object *obj)
 }
 
 static const struct drm_i915_gem_object_ops i915_gem_userptr_ops = {
-	.dmabuf_export = i915_gem_userptr_dmabuf_export,
+	.flags = I915_GEM_OBJECT_HAS_STRUCT_PAGE,
 	.get_pages = i915_gem_userptr_get_pages,
 	.put_pages = i915_gem_userptr_put_pages,
+	.dmabuf_export = i915_gem_userptr_dmabuf_export,
 	.release = i915_gem_userptr_release,
 };
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 007ae83..4897728 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3287,19 +3287,20 @@ enum skl_disp_power_wells {
 
 #define PORT_HOTPLUG_STAT	_MMIO(dev_priv->info.display_mmio_offset + 0x61114)
 /*
- * HDMI/DP bits are gen4+
+ * HDMI/DP bits are g4x+
  *
  * WARNING: Bspec for hpd status bits on gen4 seems to be completely confused.
  * Please check the detailed lore in the commit message for for experimental
  * evidence.
  */
-#define   PORTD_HOTPLUG_LIVE_STATUS_G4X		(1 << 29)
+/* Bspec says GM45 should match G4X/VLV/CHV, but reality disagrees */
+#define   PORTD_HOTPLUG_LIVE_STATUS_GM45	(1 << 29)
+#define   PORTC_HOTPLUG_LIVE_STATUS_GM45	(1 << 28)
+#define   PORTB_HOTPLUG_LIVE_STATUS_GM45	(1 << 27)
+/* G4X/VLV/CHV DP/HDMI bits again match Bspec */
+#define   PORTD_HOTPLUG_LIVE_STATUS_G4X		(1 << 27)
 #define   PORTC_HOTPLUG_LIVE_STATUS_G4X		(1 << 28)
-#define   PORTB_HOTPLUG_LIVE_STATUS_G4X		(1 << 27)
-/* VLV DP/HDMI bits again match Bspec */
-#define   PORTD_HOTPLUG_LIVE_STATUS_VLV		(1 << 27)
-#define   PORTC_HOTPLUG_LIVE_STATUS_VLV		(1 << 28)
-#define   PORTB_HOTPLUG_LIVE_STATUS_VLV		(1 << 29)
+#define   PORTB_HOTPLUG_LIVE_STATUS_G4X		(1 << 29)
 #define   PORTD_HOTPLUG_INT_STATUS		(3 << 21)
 #define   PORTD_HOTPLUG_INT_LONG_PULSE		(2 << 21)
 #define   PORTD_HOTPLUG_INT_SHORT_PULSE		(1 << 21)
@@ -7514,7 +7515,7 @@ enum skl_disp_power_wells {
 #define  DPLL_CFGCR2_PDIV_7 (4<<2)
 #define  DPLL_CFGCR2_CENTRAL_FREQ_MASK	(3)
 
-#define DPLL_CFGCR1(id)	_MMIO_PIPE((id) - SKL_DPLL1, _DPLL1_CFGCR1, _DPLL2_CFGCR2)
+#define DPLL_CFGCR1(id)	_MMIO_PIPE((id) - SKL_DPLL1, _DPLL1_CFGCR1, _DPLL2_CFGCR1)
 #define DPLL_CFGCR2(id)	_MMIO_PIPE((id) - SKL_DPLL1, _DPLL1_CFGCR2, _DPLL2_CFGCR2)
 
 /* BXT display engine PLL */
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index a2aa09c..a8af594 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -49,7 +49,7 @@ static void i915_save_display(struct drm_device *dev)
 		dev_priv->regfile.savePP_ON_DELAYS = I915_READ(PCH_PP_ON_DELAYS);
 		dev_priv->regfile.savePP_OFF_DELAYS = I915_READ(PCH_PP_OFF_DELAYS);
 		dev_priv->regfile.savePP_DIVISOR = I915_READ(PCH_PP_DIVISOR);
-	} else if (!IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev)) {
+	} else if (INTEL_INFO(dev)->gen <= 4) {
 		dev_priv->regfile.savePP_CONTROL = I915_READ(PP_CONTROL);
 		dev_priv->regfile.savePP_ON_DELAYS = I915_READ(PP_ON_DELAYS);
 		dev_priv->regfile.savePP_OFF_DELAYS = I915_READ(PP_OFF_DELAYS);
@@ -84,7 +84,7 @@ static void i915_restore_display(struct drm_device *dev)
 		I915_WRITE(PCH_PP_OFF_DELAYS, dev_priv->regfile.savePP_OFF_DELAYS);
 		I915_WRITE(PCH_PP_DIVISOR, dev_priv->regfile.savePP_DIVISOR);
 		I915_WRITE(PCH_PP_CONTROL, dev_priv->regfile.savePP_CONTROL);
-	} else if (!IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev)) {
+	} else if (INTEL_INFO(dev)->gen <= 4) {
 		I915_WRITE(PP_ON_DELAYS, dev_priv->regfile.savePP_ON_DELAYS);
 		I915_WRITE(PP_OFF_DELAYS, dev_priv->regfile.savePP_OFF_DELAYS);
 		I915_WRITE(PP_DIVISOR, dev_priv->regfile.savePP_DIVISOR);
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 9c89df1..a7b4a524 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -71,22 +71,29 @@ static bool intel_crt_get_hw_state(struct intel_encoder *encoder,
 	struct intel_crt *crt = intel_encoder_to_crt(encoder);
 	enum intel_display_power_domain power_domain;
 	u32 tmp;
+	bool ret;
 
 	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_is_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 		return false;
 
+	ret = false;
+
 	tmp = I915_READ(crt->adpa_reg);
 
 	if (!(tmp & ADPA_DAC_ENABLE))
-		return false;
+		goto out;
 
 	if (HAS_PCH_CPT(dev))
 		*pipe = PORT_TO_PIPE_CPT(tmp);
 	else
 		*pipe = PORT_TO_PIPE(tmp);
 
-	return true;
+	ret = true;
+out:
+	intel_display_power_put(dev_priv, power_domain);
+
+	return ret;
 }
 
 static unsigned int intel_crt_get_flags(struct intel_encoder *encoder)
diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index 9bb63a8..647d85e 100644
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -240,6 +240,8 @@ void intel_csr_load_program(struct drm_i915_private *dev_priv)
 		I915_WRITE(dev_priv->csr.mmioaddr[i],
 			   dev_priv->csr.mmiodata[i]);
 	}
+
+	dev_priv->csr.dc_state = 0;
 }
 
 static uint32_t *parse_csr_fw(struct drm_i915_private *dev_priv,
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index e6408e5..0f3df2c 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1589,7 +1589,8 @@ skl_ddi_pll_select(struct intel_crtc *intel_crtc,
 			 DPLL_CFGCR2_KDIV(wrpll_params.kdiv) |
 			 DPLL_CFGCR2_PDIV(wrpll_params.pdiv) |
 			 wrpll_params.central_freq;
-	} else if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT) {
+	} else if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT ||
+		   intel_encoder->type == INTEL_OUTPUT_DP_MST) {
 		switch (crtc_state->port_clock / 2) {
 		case 81000:
 			ctrl1 |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_810, 0);
@@ -1968,13 +1969,16 @@ bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector)
 	enum transcoder cpu_transcoder;
 	enum intel_display_power_domain power_domain;
 	uint32_t tmp;
+	bool ret;
 
 	power_domain = intel_display_port_power_domain(intel_encoder);
-	if (!intel_display_power_is_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 		return false;
 
-	if (!intel_encoder->get_hw_state(intel_encoder, &pipe))
-		return false;
+	if (!intel_encoder->get_hw_state(intel_encoder, &pipe)) {
+		ret = false;
+		goto out;
+	}
 
 	if (port == PORT_A)
 		cpu_transcoder = TRANSCODER_EDP;
@@ -1986,23 +1990,33 @@ bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector)
 	switch (tmp & TRANS_DDI_MODE_SELECT_MASK) {
 	case TRANS_DDI_MODE_SELECT_HDMI:
 	case TRANS_DDI_MODE_SELECT_DVI:
-		return (type == DRM_MODE_CONNECTOR_HDMIA);
+		ret = type == DRM_MODE_CONNECTOR_HDMIA;
+		break;
 
 	case TRANS_DDI_MODE_SELECT_DP_SST:
-		if (type == DRM_MODE_CONNECTOR_eDP)
-			return true;
-		return (type == DRM_MODE_CONNECTOR_DisplayPort);
+		ret = type == DRM_MODE_CONNECTOR_eDP ||
+		      type == DRM_MODE_CONNECTOR_DisplayPort;
+		break;
+
 	case TRANS_DDI_MODE_SELECT_DP_MST:
 		/* if the transcoder is in MST state then
 		 * connector isn't connected */
-		return false;
+		ret = false;
+		break;
 
 	case TRANS_DDI_MODE_SELECT_FDI:
-		return (type == DRM_MODE_CONNECTOR_VGA);
+		ret = type == DRM_MODE_CONNECTOR_VGA;
+		break;
 
 	default:
-		return false;
+		ret = false;
+		break;
 	}
+
+out:
+	intel_display_power_put(dev_priv, power_domain);
+
+	return ret;
 }
 
 bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
@@ -2014,15 +2028,18 @@ bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
 	enum intel_display_power_domain power_domain;
 	u32 tmp;
 	int i;
+	bool ret;
 
 	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_is_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 		return false;
 
+	ret = false;
+
 	tmp = I915_READ(DDI_BUF_CTL(port));
 
 	if (!(tmp & DDI_BUF_CTL_ENABLE))
-		return false;
+		goto out;
 
 	if (port == PORT_A) {
 		tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
@@ -2040,25 +2057,32 @@ bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
 			break;
 		}
 
-		return true;
-	} else {
-		for (i = TRANSCODER_A; i <= TRANSCODER_C; i++) {
-			tmp = I915_READ(TRANS_DDI_FUNC_CTL(i));
+		ret = true;
 
-			if ((tmp & TRANS_DDI_PORT_MASK)
-			    == TRANS_DDI_SELECT_PORT(port)) {
-				if ((tmp & TRANS_DDI_MODE_SELECT_MASK) == TRANS_DDI_MODE_SELECT_DP_MST)
-					return false;
+		goto out;
+	}
 
-				*pipe = i;
-				return true;
-			}
+	for (i = TRANSCODER_A; i <= TRANSCODER_C; i++) {
+		tmp = I915_READ(TRANS_DDI_FUNC_CTL(i));
+
+		if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(port)) {
+			if ((tmp & TRANS_DDI_MODE_SELECT_MASK) ==
+			    TRANS_DDI_MODE_SELECT_DP_MST)
+				goto out;
+
+			*pipe = i;
+			ret = true;
+
+			goto out;
 		}
 	}
 
 	DRM_DEBUG_KMS("No pipe for ddi port %c found\n", port_name(port));
 
-	return false;
+out:
+	intel_display_power_put(dev_priv, power_domain);
+
+	return ret;
 }
 
 void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc)
@@ -2507,12 +2531,14 @@ static bool hsw_ddi_wrpll_get_hw_state(struct drm_i915_private *dev_priv,
 {
 	uint32_t val;
 
-	if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PLLS))
+	if (!intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_PLLS))
 		return false;
 
 	val = I915_READ(WRPLL_CTL(pll->id));
 	hw_state->wrpll = val;
 
+	intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS);
+
 	return val & WRPLL_PLL_ENABLE;
 }
 
@@ -2522,12 +2548,14 @@ static bool hsw_ddi_spll_get_hw_state(struct drm_i915_private *dev_priv,
 {
 	uint32_t val;
 
-	if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PLLS))
+	if (!intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_PLLS))
 		return false;
 
 	val = I915_READ(SPLL_CTL);
 	hw_state->spll = val;
 
+	intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS);
+
 	return val & SPLL_PLL_ENABLE;
 }
 
@@ -2644,16 +2672,19 @@ static bool skl_ddi_pll_get_hw_state(struct drm_i915_private *dev_priv,
 	uint32_t val;
 	unsigned int dpll;
 	const struct skl_dpll_regs *regs = skl_dpll_regs;
+	bool ret;
 
-	if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PLLS))
+	if (!intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_PLLS))
 		return false;
 
+	ret = false;
+
 	/* DPLL0 is not part of the shared DPLLs, so pll->id is 0 for DPLL1 */
 	dpll = pll->id + 1;
 
 	val = I915_READ(regs[pll->id].ctl);
 	if (!(val & LCPLL_PLL_ENABLE))
-		return false;
+		goto out;
 
 	val = I915_READ(DPLL_CTRL1);
 	hw_state->ctrl1 = (val >> (dpll * 6)) & 0x3f;
@@ -2663,8 +2694,12 @@ static bool skl_ddi_pll_get_hw_state(struct drm_i915_private *dev_priv,
 		hw_state->cfgcr1 = I915_READ(regs[pll->id].cfgcr1);
 		hw_state->cfgcr2 = I915_READ(regs[pll->id].cfgcr2);
 	}
+	ret = true;
 
-	return true;
+out:
+	intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS);
+
+	return ret;
 }
 
 static void skl_shared_dplls_init(struct drm_i915_private *dev_priv)
@@ -2931,13 +2966,16 @@ static bool bxt_ddi_pll_get_hw_state(struct drm_i915_private *dev_priv,
 {
 	enum port port = (enum port)pll->id;	/* 1:1 port->PLL mapping */
 	uint32_t val;
+	bool ret;
 
-	if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PLLS))
+	if (!intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_PLLS))
 		return false;
 
+	ret = false;
+
 	val = I915_READ(BXT_PORT_PLL_ENABLE(port));
 	if (!(val & PORT_PLL_ENABLE))
-		return false;
+		goto out;
 
 	hw_state->ebb0 = I915_READ(BXT_PORT_PLL_EBB_0(port));
 	hw_state->ebb0 &= PORT_PLL_P1_MASK | PORT_PLL_P2_MASK;
@@ -2984,7 +3022,12 @@ static bool bxt_ddi_pll_get_hw_state(struct drm_i915_private *dev_priv,
 				 I915_READ(BXT_PORT_PCS_DW12_LN23(port)));
 	hw_state->pcsdw12 &= LANE_STAGGER_MASK | LANESTAGGER_STRAP_OVRD;
 
-	return true;
+	ret = true;
+
+out:
+	intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS);
+
+	return ret;
 }
 
 static void bxt_shared_dplls_init(struct drm_i915_private *dev_priv)
@@ -3119,11 +3162,15 @@ bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv,
 {
 	u32 temp;
 
-	if (intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_AUDIO)) {
+	if (intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_AUDIO)) {
 		temp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
+
+		intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO);
+
 		if (temp & AUDIO_OUTPUT_ENABLE(intel_crtc->pipe))
 			return true;
 	}
+
 	return false;
 }
 
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 5feb657..46947ff 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1351,18 +1351,21 @@ void assert_pipe(struct drm_i915_private *dev_priv,
 	bool cur_state;
 	enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
 								      pipe);
+	enum intel_display_power_domain power_domain;
 
 	/* if we need the pipe quirk it must be always on */
 	if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) ||
 	    (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE))
 		state = true;
 
-	if (!intel_display_power_is_enabled(dev_priv,
-				POWER_DOMAIN_TRANSCODER(cpu_transcoder))) {
-		cur_state = false;
-	} else {
+	power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder);
+	if (intel_display_power_get_if_enabled(dev_priv, power_domain)) {
 		u32 val = I915_READ(PIPECONF(cpu_transcoder));
 		cur_state = !!(val & PIPECONF_ENABLE);
+
+		intel_display_power_put(dev_priv, power_domain);
+	} else {
+		cur_state = false;
 	}
 
 	I915_STATE_WARN(cur_state != state,
@@ -8171,18 +8174,22 @@ static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
 {
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
+	enum intel_display_power_domain power_domain;
 	uint32_t tmp;
+	bool ret;
 
-	if (!intel_display_power_is_enabled(dev_priv,
-					    POWER_DOMAIN_PIPE(crtc->pipe)))
+	power_domain = POWER_DOMAIN_PIPE(crtc->pipe);
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 		return false;
 
 	pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
 	pipe_config->shared_dpll = DPLL_ID_PRIVATE;
 
+	ret = false;
+
 	tmp = I915_READ(PIPECONF(crtc->pipe));
 	if (!(tmp & PIPECONF_ENABLE))
-		return false;
+		goto out;
 
 	if (IS_G4X(dev) || IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) {
 		switch (tmp & PIPECONF_BPC_MASK) {
@@ -8262,7 +8269,12 @@ static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
 	pipe_config->base.adjusted_mode.crtc_clock =
 		pipe_config->port_clock / pipe_config->pixel_multiplier;
 
-	return true;
+	ret = true;
+
+out:
+	intel_display_power_put(dev_priv, power_domain);
+
+	return ret;
 }
 
 static void ironlake_init_pch_refclk(struct drm_device *dev)
@@ -9366,18 +9378,21 @@ static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
 {
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
+	enum intel_display_power_domain power_domain;
 	uint32_t tmp;
+	bool ret;
 
-	if (!intel_display_power_is_enabled(dev_priv,
-					    POWER_DOMAIN_PIPE(crtc->pipe)))
+	power_domain = POWER_DOMAIN_PIPE(crtc->pipe);
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 		return false;
 
 	pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
 	pipe_config->shared_dpll = DPLL_ID_PRIVATE;
 
+	ret = false;
 	tmp = I915_READ(PIPECONF(crtc->pipe));
 	if (!(tmp & PIPECONF_ENABLE))
-		return false;
+		goto out;
 
 	switch (tmp & PIPECONF_BPC_MASK) {
 	case PIPECONF_6BPC:
@@ -9440,7 +9455,12 @@ static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
 
 	ironlake_get_pfit_config(crtc, pipe_config);
 
-	return true;
+	ret = true;
+
+out:
+	intel_display_power_put(dev_priv, power_domain);
+
+	return ret;
 }
 
 static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
@@ -9950,12 +9970,17 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
 {
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	enum intel_display_power_domain pfit_domain;
+	enum intel_display_power_domain power_domain;
+	unsigned long power_domain_mask;
 	uint32_t tmp;
+	bool ret;
 
-	if (!intel_display_power_is_enabled(dev_priv,
-					 POWER_DOMAIN_PIPE(crtc->pipe)))
+	power_domain = POWER_DOMAIN_PIPE(crtc->pipe);
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 		return false;
+	power_domain_mask = BIT(power_domain);
+
+	ret = false;
 
 	pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
 	pipe_config->shared_dpll = DPLL_ID_PRIVATE;
@@ -9982,13 +10007,14 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
 			pipe_config->cpu_transcoder = TRANSCODER_EDP;
 	}
 
-	if (!intel_display_power_is_enabled(dev_priv,
-			POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder)))
-		return false;
+	power_domain = POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder);
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
+		goto out;
+	power_domain_mask |= BIT(power_domain);
 
 	tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder));
 	if (!(tmp & PIPECONF_ENABLE))
-		return false;
+		goto out;
 
 	haswell_get_ddi_port_state(crtc, pipe_config);
 
@@ -9998,14 +10024,14 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
 		skl_init_scalers(dev, crtc, pipe_config);
 	}
 
-	pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
-
 	if (INTEL_INFO(dev)->gen >= 9) {
 		pipe_config->scaler_state.scaler_id = -1;
 		pipe_config->scaler_state.scaler_users &= ~(1 << SKL_CRTC_INDEX);
 	}
 
-	if (intel_display_power_is_enabled(dev_priv, pfit_domain)) {
+	power_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
+	if (intel_display_power_get_if_enabled(dev_priv, power_domain)) {
+		power_domain_mask |= BIT(power_domain);
 		if (INTEL_INFO(dev)->gen >= 9)
 			skylake_get_pfit_config(crtc, pipe_config);
 		else
@@ -10023,7 +10049,13 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
 		pipe_config->pixel_multiplier = 1;
 	}
 
-	return true;
+	ret = true;
+
+out:
+	for_each_power_domain(power_domain, power_domain_mask)
+		intel_display_power_put(dev_priv, power_domain);
+
+	return ret;
 }
 
 static void i845_update_cursor(struct drm_crtc *crtc, u32 base, bool on)
@@ -13630,7 +13662,7 @@ static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv,
 {
 	uint32_t val;
 
-	if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PLLS))
+	if (!intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_PLLS))
 		return false;
 
 	val = I915_READ(PCH_DPLL(pll->id));
@@ -13638,6 +13670,8 @@ static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv,
 	hw_state->fp0 = I915_READ(PCH_FP0(pll->id));
 	hw_state->fp1 = I915_READ(PCH_FP1(pll->id));
 
+	intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS);
+
 	return val & DPLL_VCO_ENABLE;
 }
 
@@ -15568,10 +15602,12 @@ void i915_redisable_vga(struct drm_device *dev)
 	 * level, just check if the power well is enabled instead of trying to
 	 * follow the "don't touch the power well if we don't need it" policy
 	 * the rest of the driver uses. */
-	if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_VGA))
+	if (!intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_VGA))
 		return;
 
 	i915_redisable_vga_power_on(dev);
+
+	intel_display_power_put(dev_priv, POWER_DOMAIN_VGA);
 }
 
 static bool primary_get_hw_state(struct intel_plane *plane)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 796e3d3..1d8de43 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2362,15 +2362,18 @@ static bool intel_dp_get_hw_state(struct intel_encoder *encoder,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum intel_display_power_domain power_domain;
 	u32 tmp;
+	bool ret;
 
 	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_is_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 		return false;
 
+	ret = false;
+
 	tmp = I915_READ(intel_dp->output_reg);
 
 	if (!(tmp & DP_PORT_EN))
-		return false;
+		goto out;
 
 	if (IS_GEN7(dev) && port == PORT_A) {
 		*pipe = PORT_TO_PIPE_CPT(tmp);
@@ -2381,7 +2384,9 @@ static bool intel_dp_get_hw_state(struct intel_encoder *encoder,
 			u32 trans_dp = I915_READ(TRANS_DP_CTL(p));
 			if (TRANS_DP_PIPE_TO_PORT(trans_dp) == port) {
 				*pipe = p;
-				return true;
+				ret = true;
+
+				goto out;
 			}
 		}
 
@@ -2393,7 +2398,12 @@ static bool intel_dp_get_hw_state(struct intel_encoder *encoder,
 		*pipe = PORT_TO_PIPE(tmp);
 	}
 
-	return true;
+	ret = true;
+
+out:
+	intel_display_power_put(dev_priv, power_domain);
+
+	return ret;
 }
 
 static void intel_dp_get_config(struct intel_encoder *encoder,
@@ -4493,20 +4503,20 @@ static bool g4x_digital_port_connected(struct drm_i915_private *dev_priv,
 	return I915_READ(PORT_HOTPLUG_STAT) & bit;
 }
 
-static bool vlv_digital_port_connected(struct drm_i915_private *dev_priv,
-				       struct intel_digital_port *port)
+static bool gm45_digital_port_connected(struct drm_i915_private *dev_priv,
+					struct intel_digital_port *port)
 {
 	u32 bit;
 
 	switch (port->port) {
 	case PORT_B:
-		bit = PORTB_HOTPLUG_LIVE_STATUS_VLV;
+		bit = PORTB_HOTPLUG_LIVE_STATUS_GM45;
 		break;
 	case PORT_C:
-		bit = PORTC_HOTPLUG_LIVE_STATUS_VLV;
+		bit = PORTC_HOTPLUG_LIVE_STATUS_GM45;
 		break;
 	case PORT_D:
-		bit = PORTD_HOTPLUG_LIVE_STATUS_VLV;
+		bit = PORTD_HOTPLUG_LIVE_STATUS_GM45;
 		break;
 	default:
 		MISSING_CASE(port->port);
@@ -4558,8 +4568,8 @@ bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
 		return cpt_digital_port_connected(dev_priv, port);
 	else if (IS_BROXTON(dev_priv))
 		return bxt_digital_port_connected(dev_priv, port);
-	else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-		return vlv_digital_port_connected(dev_priv, port);
+	else if (IS_GM45(dev_priv))
+		return gm45_digital_port_connected(dev_priv, port);
 	else
 		return g4x_digital_port_connected(dev_priv, port);
 }
diff --git a/drivers/gpu/drm/i915/intel_dp_link_training.c b/drivers/gpu/drm/i915/intel_dp_link_training.c
index 8888793..0b8eefc 100644
--- a/drivers/gpu/drm/i915/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/intel_dp_link_training.c
@@ -215,27 +215,46 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
 	}
 }
 
-static void
-intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
+/*
+ * Pick training pattern for channel equalization. Training Pattern 3 for HBR2
+ * or 1.2 devices that support it, Training Pattern 2 otherwise.
+ */
+static u32 intel_dp_training_pattern(struct intel_dp *intel_dp)
 {
-	bool channel_eq = false;
-	int tries, cr_tries;
-	uint32_t training_pattern = DP_TRAINING_PATTERN_2;
+	u32 training_pattern = DP_TRAINING_PATTERN_2;
+	bool source_tps3, sink_tps3;
 
 	/*
-	 * Training Pattern 3 for HBR2 or 1.2 devices that support it.
-	 *
 	 * Intel platforms that support HBR2 also support TPS3. TPS3 support is
-	 * also mandatory for downstream devices that support HBR2.
+	 * also mandatory for downstream devices that support HBR2. However, not
+	 * all sinks follow the spec.
 	 *
 	 * Due to WaDisableHBR2 SKL < B0 is the only exception where TPS3 is
-	 * supported but still not enabled.
+	 * supported in source but still not enabled.
 	 */
-	if (intel_dp_source_supports_hbr2(intel_dp) &&
-	    drm_dp_tps3_supported(intel_dp->dpcd))
+	source_tps3 = intel_dp_source_supports_hbr2(intel_dp);
+	sink_tps3 = drm_dp_tps3_supported(intel_dp->dpcd);
+
+	if (source_tps3 && sink_tps3) {
 		training_pattern = DP_TRAINING_PATTERN_3;
-	else if (intel_dp->link_rate == 540000)
-		DRM_ERROR("5.4 Gbps link rate without HBR2/TPS3 support\n");
+	} else if (intel_dp->link_rate == 540000) {
+		if (!source_tps3)
+			DRM_DEBUG_KMS("5.4 Gbps link rate without source HBR2/TPS3 support\n");
+		if (!sink_tps3)
+			DRM_DEBUG_KMS("5.4 Gbps link rate without sink TPS3 support\n");
+	}
+
+	return training_pattern;
+}
+
+static void
+intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
+{
+	bool channel_eq = false;
+	int tries, cr_tries;
+	u32 training_pattern;
+
+	training_pattern = intel_dp_training_pattern(intel_dp);
 
 	/* channel equalization */
 	if (!intel_dp_set_link_train(intel_dp,
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index ea54158..df7f3cb 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1428,6 +1428,8 @@ bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
 				      enum intel_display_power_domain domain);
 void intel_display_power_get(struct drm_i915_private *dev_priv,
 			     enum intel_display_power_domain domain);
+bool intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv,
+					enum intel_display_power_domain domain);
 void intel_display_power_put(struct drm_i915_private *dev_priv,
 			     enum intel_display_power_domain domain);
 
@@ -1514,6 +1516,7 @@ enable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
 	enable_rpm_wakeref_asserts(dev_priv)
 
 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
+bool intel_runtime_pm_get_if_in_use(struct drm_i915_private *dev_priv);
 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
 
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 44742fa..0193c62a 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -664,13 +664,16 @@ static bool intel_dsi_get_hw_state(struct intel_encoder *encoder,
 	struct drm_device *dev = encoder->base.dev;
 	enum intel_display_power_domain power_domain;
 	enum port port;
+	bool ret;
 
 	DRM_DEBUG_KMS("\n");
 
 	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_is_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 		return false;
 
+	ret = false;
+
 	/* XXX: this only works for one DSI output */
 	for_each_dsi_port(port, intel_dsi->ports) {
 		i915_reg_t ctrl_reg = IS_BROXTON(dev) ?
@@ -691,12 +694,16 @@ static bool intel_dsi_get_hw_state(struct intel_encoder *encoder,
 		if (dpi_enabled || (func & CMD_MODE_DATA_WIDTH_MASK)) {
 			if (I915_READ(MIPI_DEVICE_READY(port)) & DEVICE_READY) {
 				*pipe = port == PORT_A ? PIPE_A : PIPE_B;
-				return true;
+				ret = true;
+
+				goto out;
 			}
 		}
 	}
+out:
+	intel_display_power_put(dev_priv, power_domain);
 
-	return false;
+	return ret;
 }
 
 static void intel_dsi_get_config(struct intel_encoder *encoder,
diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
index a5e99ac..e8113ad 100644
--- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
+++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
@@ -204,10 +204,28 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data)
 	struct drm_device *dev = intel_dsi->base.base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
+	if (dev_priv->vbt.dsi.seq_version >= 3)
+		data++;
+
 	gpio = *data++;
 
 	/* pull up/down */
-	action = *data++;
+	action = *data++ & 1;
+
+	if (gpio >= ARRAY_SIZE(gtable)) {
+		DRM_DEBUG_KMS("unknown gpio %u\n", gpio);
+		goto out;
+	}
+
+	if (!IS_VALLEYVIEW(dev_priv)) {
+		DRM_DEBUG_KMS("GPIO element not supported on this platform\n");
+		goto out;
+	}
+
+	if (dev_priv->vbt.dsi.seq_version >= 3) {
+		DRM_DEBUG_KMS("GPIO element v3 not supported\n");
+		goto out;
+	}
 
 	function = gtable[gpio].function_reg;
 	pad = gtable[gpio].pad_reg;
@@ -226,6 +244,7 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data)
 	vlv_gpio_nc_write(dev_priv, pad, val);
 	mutex_unlock(&dev_priv->sb_lock);
 
+out:
 	return data;
 }
 
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 4a77639..cb5d1b1 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -880,15 +880,18 @@ static bool intel_hdmi_get_hw_state(struct intel_encoder *encoder,
 	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
 	enum intel_display_power_domain power_domain;
 	u32 tmp;
+	bool ret;
 
 	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_is_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 		return false;
 
+	ret = false;
+
 	tmp = I915_READ(intel_hdmi->hdmi_reg);
 
 	if (!(tmp & SDVO_ENABLE))
-		return false;
+		goto out;
 
 	if (HAS_PCH_CPT(dev))
 		*pipe = PORT_TO_PIPE_CPT(tmp);
@@ -897,7 +900,12 @@ static bool intel_hdmi_get_hw_state(struct intel_encoder *encoder,
 	else
 		*pipe = PORT_TO_PIPE(tmp);
 
-	return true;
+	ret = true;
+
+out:
+	intel_display_power_put(dev_priv, power_domain);
+
+	return ret;
 }
 
 static void intel_hdmi_get_config(struct intel_encoder *encoder,
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index 25254b5..deb8282 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -683,7 +683,7 @@ int intel_setup_gmbus(struct drm_device *dev)
 	return 0;
 
 err:
-	while (--pin) {
+	while (pin--) {
 		if (!intel_gmbus_is_valid_pin(dev_priv, pin))
 			continue;
 
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 0da0240..bc04d8d 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -75,22 +75,30 @@ static bool intel_lvds_get_hw_state(struct intel_encoder *encoder,
 	struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base);
 	enum intel_display_power_domain power_domain;
 	u32 tmp;
+	bool ret;
 
 	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_is_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 		return false;
 
+	ret = false;
+
 	tmp = I915_READ(lvds_encoder->reg);
 
 	if (!(tmp & LVDS_PORT_EN))
-		return false;
+		goto out;
 
 	if (HAS_PCH_CPT(dev))
 		*pipe = PORT_TO_PIPE_CPT(tmp);
 	else
 		*pipe = PORT_TO_PIPE(tmp);
 
-	return true;
+	ret = true;
+
+out:
+	intel_display_power_put(dev_priv, power_domain);
+
+	return ret;
 }
 
 static void intel_lvds_get_config(struct intel_encoder *encoder,
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index eb5fa05..b28c29f 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1783,16 +1783,20 @@ static uint32_t ilk_compute_cur_wm(const struct intel_crtc_state *cstate,
 				   const struct intel_plane_state *pstate,
 				   uint32_t mem_value)
 {
-	int bpp = pstate->base.fb ? pstate->base.fb->bits_per_pixel / 8 : 0;
+	/*
+	 * We treat the cursor plane as always-on for the purposes of watermark
+	 * calculation.  Until we have two-stage watermark programming merged,
+	 * this is necessary to avoid flickering.
+	 */
+	int cpp = 4;
+	int width = pstate->visible ? pstate->base.crtc_w : 64;
 
-	if (!cstate->base.active || !pstate->visible)
+	if (!cstate->base.active)
 		return 0;
 
 	return ilk_wm_method2(ilk_pipe_pixel_rate(cstate),
 			      cstate->base.adjusted_mode.crtc_htotal,
-			      drm_rect_width(&pstate->dst),
-			      bpp,
-			      mem_value);
+			      width, cpp, mem_value);
 }
 
 /* Only for WM_LP. */
@@ -2825,7 +2829,10 @@ void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
 	memset(ddb, 0, sizeof(*ddb));
 
 	for_each_pipe(dev_priv, pipe) {
-		if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PIPE(pipe)))
+		enum intel_display_power_domain power_domain;
+
+		power_domain = POWER_DOMAIN_PIPE(pipe);
+		if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 			continue;
 
 		for_each_plane(dev_priv, pipe, plane) {
@@ -2837,6 +2844,8 @@ void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
 		val = I915_READ(CUR_BUF_CFG(pipe));
 		skl_ddb_entry_init_from_hw(&ddb->plane[pipe][PLANE_CURSOR],
 					   val);
+
+		intel_display_power_put(dev_priv, power_domain);
 	}
 }
 
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index ddbdbff..678ed34 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -470,6 +470,43 @@ static void gen9_set_dc_state_debugmask_memory_up(
 	}
 }
 
+static void gen9_write_dc_state(struct drm_i915_private *dev_priv,
+				u32 state)
+{
+	int rewrites = 0;
+	int rereads = 0;
+	u32 v;
+
+	I915_WRITE(DC_STATE_EN, state);
+
+	/* It has been observed that disabling the dc6 state sometimes
+	 * doesn't stick and dmc keeps returning old value. Make sure
+	 * the write really sticks enough times and also force rewrite until
+	 * we are confident that state is exactly what we want.
+	 */
+	do  {
+		v = I915_READ(DC_STATE_EN);
+
+		if (v != state) {
+			I915_WRITE(DC_STATE_EN, state);
+			rewrites++;
+			rereads = 0;
+		} else if (rereads++ > 5) {
+			break;
+		}
+
+	} while (rewrites < 100);
+
+	if (v != state)
+		DRM_ERROR("Writing dc state to 0x%x failed, now 0x%x\n",
+			  state, v);
+
+	/* Most of the times we need one retry, avoid spam */
+	if (rewrites > 1)
+		DRM_DEBUG_KMS("Rewrote dc state to 0x%x %d times\n",
+			      state, rewrites);
+}
+
 static void gen9_set_dc_state(struct drm_i915_private *dev_priv, uint32_t state)
 {
 	uint32_t val;
@@ -494,10 +531,18 @@ static void gen9_set_dc_state(struct drm_i915_private *dev_priv, uint32_t state)
 	val = I915_READ(DC_STATE_EN);
 	DRM_DEBUG_KMS("Setting DC state from %02x to %02x\n",
 		      val & mask, state);
+
+	/* Check if DMC is ignoring our DC state requests */
+	if ((val & mask) != dev_priv->csr.dc_state)
+		DRM_ERROR("DC state mismatch (0x%x -> 0x%x)\n",
+			  dev_priv->csr.dc_state, val & mask);
+
 	val &= ~mask;
 	val |= state;
-	I915_WRITE(DC_STATE_EN, val);
-	POSTING_READ(DC_STATE_EN);
+
+	gen9_write_dc_state(dev_priv, val);
+
+	dev_priv->csr.dc_state = val & mask;
 }
 
 void bxt_enable_dc9(struct drm_i915_private *dev_priv)
@@ -1442,6 +1487,22 @@ static void chv_pipe_power_well_disable(struct drm_i915_private *dev_priv,
 	chv_set_pipe_power_well(dev_priv, power_well, false);
 }
 
+static void
+__intel_display_power_get_domain(struct drm_i915_private *dev_priv,
+				 enum intel_display_power_domain domain)
+{
+	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_well *power_well;
+	int i;
+
+	for_each_power_well(i, power_well, BIT(domain), power_domains) {
+		if (!power_well->count++)
+			intel_power_well_enable(dev_priv, power_well);
+	}
+
+	power_domains->domain_use_count[domain]++;
+}
+
 /**
  * intel_display_power_get - grab a power domain reference
  * @dev_priv: i915 device instance
@@ -1457,24 +1518,53 @@ static void chv_pipe_power_well_disable(struct drm_i915_private *dev_priv,
 void intel_display_power_get(struct drm_i915_private *dev_priv,
 			     enum intel_display_power_domain domain)
 {
-	struct i915_power_domains *power_domains;
-	struct i915_power_well *power_well;
-	int i;
+	struct i915_power_domains *power_domains = &dev_priv->power_domains;
 
 	intel_runtime_pm_get(dev_priv);
 
-	power_domains = &dev_priv->power_domains;
+	mutex_lock(&power_domains->lock);
+
+	__intel_display_power_get_domain(dev_priv, domain);
+
+	mutex_unlock(&power_domains->lock);
+}
+
+/**
+ * intel_display_power_get_if_enabled - grab a reference for an enabled display power domain
+ * @dev_priv: i915 device instance
+ * @domain: power domain to reference
+ *
+ * This function grabs a power domain reference for @domain and ensures that the
+ * power domain and all its parents are powered up. Therefore users should only
+ * grab a reference to the innermost power domain they need.
+ *
+ * Any power domain reference obtained by this function must have a symmetric
+ * call to intel_display_power_put() to release the reference again.
+ */
+bool intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv,
+					enum intel_display_power_domain domain)
+{
+	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	bool is_enabled;
+
+	if (!intel_runtime_pm_get_if_in_use(dev_priv))
+		return false;
 
 	mutex_lock(&power_domains->lock);
 
-	for_each_power_well(i, power_well, BIT(domain), power_domains) {
-		if (!power_well->count++)
-			intel_power_well_enable(dev_priv, power_well);
+	if (__intel_display_power_is_enabled(dev_priv, domain)) {
+		__intel_display_power_get_domain(dev_priv, domain);
+		is_enabled = true;
+	} else {
+		is_enabled = false;
 	}
 
-	power_domains->domain_use_count[domain]++;
-
 	mutex_unlock(&power_domains->lock);
+
+	if (!is_enabled)
+		intel_runtime_pm_put(dev_priv);
+
+	return is_enabled;
 }
 
 /**
@@ -2246,6 +2336,43 @@ void intel_runtime_pm_get(struct drm_i915_private *dev_priv)
 }
 
 /**
+ * intel_runtime_pm_get_if_in_use - grab a runtime pm reference if device in use
+ * @dev_priv: i915 device instance
+ *
+ * This function grabs a device-level runtime pm reference if the device is
+ * already in use and ensures that it is powered up.
+ *
+ * Any runtime pm reference obtained by this function must have a symmetric
+ * call to intel_runtime_pm_put() to release the reference again.
+ */
+bool intel_runtime_pm_get_if_in_use(struct drm_i915_private *dev_priv)
+{
+	struct drm_device *dev = dev_priv->dev;
+	struct device *device = &dev->pdev->dev;
+	int ret;
+
+	if (!IS_ENABLED(CONFIG_PM))
+		return true;
+
+	ret = pm_runtime_get_if_in_use(device);
+
+	/*
+	 * In cases runtime PM is disabled by the RPM core and we get an
+	 * -EINVAL return value we are not supposed to call this function,
+	 * since the power state is undefined. This applies atm to the
+	 * late/early system suspend/resume handlers.
+	 */
+	WARN_ON_ONCE(ret < 0);
+	if (ret <= 0)
+		return false;
+
+	atomic_inc(&dev_priv->pm.wakeref_count);
+	assert_rpm_wakelock_held(dev_priv);
+
+	return true;
+}
+
+/**
  * intel_runtime_pm_get_noresume - grab a runtime pm reference
  * @dev_priv: i915 device instance
  *
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 78f520d..e3acc35 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -1520,7 +1520,7 @@ nouveau_ttm_tt_populate(struct ttm_tt *ttm)
 				    DMA_BIDIRECTIONAL);
 
 		if (dma_mapping_error(pdev, addr)) {
-			while (--i) {
+			while (i--) {
 				dma_unmap_page(pdev, ttm_dma->dma_address[i],
 					       PAGE_SIZE, DMA_BIDIRECTIONAL);
 				ttm_dma->dma_address[i] = 0;
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 24be27d..20935eb 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -635,10 +635,6 @@ nouveau_display_resume(struct drm_device *dev, bool runtime)
 		nv_crtc->lut.depth = 0;
 	}
 
-	/* Make sure that drm and hw vblank irqs get resumed if needed. */
-	for (head = 0; head < dev->mode_config.num_crtc; head++)
-		drm_vblank_on(dev, head);
-
 	/* This should ensure we don't hit a locking problem when someone
 	 * wakes us up via a connector.  We should never go into suspend
 	 * while the display is on anyways.
@@ -648,6 +644,10 @@ nouveau_display_resume(struct drm_device *dev, bool runtime)
 
 	drm_helper_resume_force_mode(dev);
 
+	/* Make sure that drm and hw vblank irqs get resumed if needed. */
+	for (head = 0; head < dev->mode_config.num_crtc; head++)
+		drm_vblank_on(dev, head);
+
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 		struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_platform.c b/drivers/gpu/drm/nouveau/nouveau_platform.c
index 8a70cec..2dfe58a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_platform.c
+++ b/drivers/gpu/drm/nouveau/nouveau_platform.c
@@ -24,7 +24,7 @@
 static int nouveau_platform_probe(struct platform_device *pdev)
 {
 	const struct nvkm_device_tegra_func *func;
-	struct nvkm_device *device;
+	struct nvkm_device *device = NULL;
 	struct drm_device *drm;
 	int ret;
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
index 7f8a427..e7e581d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
@@ -252,32 +252,40 @@ nvkm_device_tegra_new(const struct nvkm_device_tegra_func *func,
 
 	if (!(tdev = kzalloc(sizeof(*tdev), GFP_KERNEL)))
 		return -ENOMEM;
-	*pdevice = &tdev->device;
+
 	tdev->func = func;
 	tdev->pdev = pdev;
 	tdev->irq = -1;
 
 	tdev->vdd = devm_regulator_get(&pdev->dev, "vdd");
-	if (IS_ERR(tdev->vdd))
-		return PTR_ERR(tdev->vdd);
+	if (IS_ERR(tdev->vdd)) {
+		ret = PTR_ERR(tdev->vdd);
+		goto free;
+	}
 
 	tdev->rst = devm_reset_control_get(&pdev->dev, "gpu");
-	if (IS_ERR(tdev->rst))
-		return PTR_ERR(tdev->rst);
+	if (IS_ERR(tdev->rst)) {
+		ret = PTR_ERR(tdev->rst);
+		goto free;
+	}
 
 	tdev->clk = devm_clk_get(&pdev->dev, "gpu");
-	if (IS_ERR(tdev->clk))
-		return PTR_ERR(tdev->clk);
+	if (IS_ERR(tdev->clk)) {
+		ret = PTR_ERR(tdev->clk);
+		goto free;
+	}
 
 	tdev->clk_pwr = devm_clk_get(&pdev->dev, "pwr");
-	if (IS_ERR(tdev->clk_pwr))
-		return PTR_ERR(tdev->clk_pwr);
+	if (IS_ERR(tdev->clk_pwr)) {
+		ret = PTR_ERR(tdev->clk_pwr);
+		goto free;
+	}
 
 	nvkm_device_tegra_probe_iommu(tdev);
 
 	ret = nvkm_device_tegra_power_up(tdev);
 	if (ret)
-		return ret;
+		goto remove;
 
 	tdev->gpu_speedo = tegra_sku_info.gpu_speedo_value;
 	ret = nvkm_device_ctor(&nvkm_device_tegra_func, NULL, &pdev->dev,
@@ -285,9 +293,19 @@ nvkm_device_tegra_new(const struct nvkm_device_tegra_func *func,
 			       cfg, dbg, detect, mmio, subdev_mask,
 			       &tdev->device);
 	if (ret)
-		return ret;
+		goto powerdown;
+
+	*pdevice = &tdev->device;
 
 	return 0;
+
+powerdown:
+	nvkm_device_tegra_power_down(tdev);
+remove:
+	nvkm_device_tegra_remove_iommu(tdev);
+free:
+	kfree(tdev);
+	return ret;
 }
 #else
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.c
index 74e2f7c..9688970 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.c
@@ -328,6 +328,7 @@ nvkm_dp_train(struct work_struct *w)
 		.outp = outp,
 	}, *dp = &_dp;
 	u32 datarate = 0;
+	u8  pwr;
 	int ret;
 
 	if (!outp->base.info.location && disp->func->sor.magic)
@@ -355,6 +356,15 @@ nvkm_dp_train(struct work_struct *w)
 	/* disable link interrupt handling during link training */
 	nvkm_notify_put(&outp->irq);
 
+	/* ensure sink is not in a low-power state */
+	if (!nvkm_rdaux(outp->aux, DPCD_SC00, &pwr, 1)) {
+		if ((pwr & DPCD_SC00_SET_POWER) != DPCD_SC00_SET_POWER_D0) {
+			pwr &= ~DPCD_SC00_SET_POWER;
+			pwr |=  DPCD_SC00_SET_POWER_D0;
+			nvkm_wraux(outp->aux, DPCD_SC00, &pwr, 1);
+		}
+	}
+
 	/* enable down-spreading and execute pre-train script from vbios */
 	dp_link_train_init(dp, outp->dpcd[3] & 0x01);
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.h
index 9596290..6e10c5e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.h
@@ -71,5 +71,11 @@
 #define DPCD_LS0C_LANE1_POST_CURSOR2                                       0x0c
 #define DPCD_LS0C_LANE0_POST_CURSOR2                                       0x03
 
+/* DPCD Sink Control */
+#define DPCD_SC00                                                       0x00600
+#define DPCD_SC00_SET_POWER                                                0x03
+#define DPCD_SC00_SET_POWER_D0                                             0x01
+#define DPCD_SC00_SET_POWER_D3                                             0x03
+
 void nvkm_dp_train(struct work_struct *);
 #endif
diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
index 2ae8577..7c2e782 100644
--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
+++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
@@ -168,7 +168,8 @@ static int qxl_process_single_command(struct qxl_device *qdev,
 		       cmd->command_size))
 		return -EFAULT;
 
-	reloc_info = kmalloc(sizeof(struct qxl_reloc_info) * cmd->relocs_num, GFP_KERNEL);
+	reloc_info = kmalloc_array(cmd->relocs_num,
+				   sizeof(struct qxl_reloc_info), GFP_KERNEL);
 	if (!reloc_info)
 		return -ENOMEM;
 
diff --git a/drivers/gpu/drm/qxl/qxl_prime.c b/drivers/gpu/drm/qxl/qxl_prime.c
index 3d031b5..9f029dd 100644
--- a/drivers/gpu/drm/qxl/qxl_prime.c
+++ b/drivers/gpu/drm/qxl/qxl_prime.c
@@ -68,5 +68,5 @@ int qxl_gem_prime_mmap(struct drm_gem_object *obj,
 		       struct vm_area_struct *area)
 {
 	WARN_ONCE(1, "not implemented");
-	return ENOSYS;
+	return -ENOSYS;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 298ea1c..2b9ba03 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -403,7 +403,8 @@ static void radeon_flip_work_func(struct work_struct *__work)
 	struct drm_crtc *crtc = &radeon_crtc->base;
 	unsigned long flags;
 	int r;
-	int vpos, hpos, stat, min_udelay;
+	int vpos, hpos, stat, min_udelay = 0;
+	unsigned repcnt = 4;
 	struct drm_vblank_crtc *vblank = &crtc->dev->vblank[work->crtc_id];
 
         down_read(&rdev->exclusive_lock);
@@ -454,7 +455,7 @@ static void radeon_flip_work_func(struct work_struct *__work)
 	 * In practice this won't execute very often unless on very fast
 	 * machines because the time window for this to happen is very small.
 	 */
-	for (;;) {
+	while (radeon_crtc->enabled && repcnt--) {
 		/* GET_DISTANCE_TO_VBLANKSTART returns distance to real vblank
 		 * start in hpos, and to the "fudged earlier" vblank start in
 		 * vpos.
@@ -472,10 +473,22 @@ static void radeon_flip_work_func(struct work_struct *__work)
 		/* Sleep at least until estimated real start of hw vblank */
 		spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
 		min_udelay = (-hpos + 1) * max(vblank->linedur_ns / 1000, 5);
+		if (min_udelay > vblank->framedur_ns / 2000) {
+			/* Don't wait ridiculously long - something is wrong */
+			repcnt = 0;
+			break;
+		}
 		usleep_range(min_udelay, 2 * min_udelay);
 		spin_lock_irqsave(&crtc->dev->event_lock, flags);
 	};
 
+	if (!repcnt)
+		DRM_DEBUG_DRIVER("Delay problem on crtc %d: min_udelay %d, "
+				 "framedur %d, linedur %d, stat %d, vpos %d, "
+				 "hpos %d\n", work->crtc_id, min_udelay,
+				 vblank->framedur_ns / 1000,
+				 vblank->linedur_ns / 1000, stat, vpos, hpos);
+
 	/* do the flip (mmio) */
 	radeon_page_flip(rdev, radeon_crtc->crtc_id, work->base);
 
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 460c8f2..ca3be90 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -276,8 +276,12 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
 	if (rdev->irq.installed) {
 		for (i = 0; i < rdev->num_crtc; i++) {
 			if (rdev->pm.active_crtcs & (1 << i)) {
-				rdev->pm.req_vblank |= (1 << i);
-				drm_vblank_get(rdev->ddev, i);
+				/* This can fail if a modeset is in progress */
+				if (drm_vblank_get(rdev->ddev, i) == 0)
+					rdev->pm.req_vblank |= (1 << i);
+				else
+					DRM_DEBUG_DRIVER("crtc %d no vblank, can glitch\n",
+							 i);
 			}
 		}
 	}
@@ -1075,8 +1079,6 @@ force:
 
 	/* update display watermarks based on new power state */
 	radeon_bandwidth_update(rdev);
-	/* update displays */
-	radeon_dpm_display_configuration_changed(rdev);
 
 	rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
 	rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
@@ -1097,6 +1099,9 @@ force:
 
 	radeon_dpm_post_set_power_state(rdev);
 
+	/* update displays */
+	radeon_dpm_display_configuration_changed(rdev);
+
 	if (rdev->asic->dpm.force_performance_level) {
 		if (rdev->pm.dpm.thermal_active) {
 			enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level;
diff --git a/drivers/gpu/drm/radeon/radeon_sa.c b/drivers/gpu/drm/radeon/radeon_sa.c
index c507896..197b157 100644
--- a/drivers/gpu/drm/radeon/radeon_sa.c
+++ b/drivers/gpu/drm/radeon/radeon_sa.c
@@ -349,8 +349,13 @@ int radeon_sa_bo_new(struct radeon_device *rdev,
 			/* see if we can skip over some allocations */
 		} while (radeon_sa_bo_next_hole(sa_manager, fences, tries));
 
+		for (i = 0; i < RADEON_NUM_RINGS; ++i)
+			radeon_fence_ref(fences[i]);
+
 		spin_unlock(&sa_manager->wq.lock);
 		r = radeon_fence_wait_any(rdev, fences, false);
+		for (i = 0; i < RADEON_NUM_RINGS; ++i)
+			radeon_fence_unref(&fences[i]);
 		spin_lock(&sa_manager->wq.lock);
 		/* if we have nothing to wait for block */
 		if (r == -ENOENT) {
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index e343074..e06ac54 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -758,7 +758,7 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm)
 						       0, PAGE_SIZE,
 						       PCI_DMA_BIDIRECTIONAL);
 		if (pci_dma_mapping_error(rdev->pdev, gtt->ttm.dma_address[i])) {
-			while (--i) {
+			while (i--) {
 				pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i],
 					       PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
 				gtt->ttm.dma_address[i] = 0;
diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
index 18dfe3e..22278bc 100644
--- a/drivers/gpu/drm/vc4/vc4_bo.c
+++ b/drivers/gpu/drm/vc4/vc4_bo.c
@@ -215,7 +215,7 @@ struct vc4_bo *vc4_bo_create(struct drm_device *dev, size_t unaligned_size,
 	struct drm_gem_cma_object *cma_obj;
 
 	if (size == 0)
-		return NULL;
+		return ERR_PTR(-EINVAL);
 
 	/* First, try to get a vc4_bo from the kernel BO cache. */
 	if (from_cache) {
@@ -237,7 +237,7 @@ struct vc4_bo *vc4_bo_create(struct drm_device *dev, size_t unaligned_size,
 		if (IS_ERR(cma_obj)) {
 			DRM_ERROR("Failed to allocate from CMA:\n");
 			vc4_bo_stats_dump(vc4);
-			return NULL;
+			return ERR_PTR(-ENOMEM);
 		}
 	}
 
@@ -259,8 +259,8 @@ int vc4_dumb_create(struct drm_file *file_priv,
 		args->size = args->pitch * args->height;
 
 	bo = vc4_bo_create(dev, args->size, false);
-	if (!bo)
-		return -ENOMEM;
+	if (IS_ERR(bo))
+		return PTR_ERR(bo);
 
 	ret = drm_gem_handle_create(file_priv, &bo->base.base, &args->handle);
 	drm_gem_object_unreference_unlocked(&bo->base.base);
@@ -443,8 +443,8 @@ int vc4_create_bo_ioctl(struct drm_device *dev, void *data,
 	 * get zeroed, and that might leak data between users.
 	 */
 	bo = vc4_bo_create(dev, args->size, false);
-	if (!bo)
-		return -ENOMEM;
+	if (IS_ERR(bo))
+		return PTR_ERR(bo);
 
 	ret = drm_gem_handle_create(file_priv, &bo->base.base, &args->handle);
 	drm_gem_object_unreference_unlocked(&bo->base.base);
@@ -496,8 +496,8 @@ vc4_create_shader_bo_ioctl(struct drm_device *dev, void *data,
 	}
 
 	bo = vc4_bo_create(dev, args->size, true);
-	if (!bo)
-		return -ENOMEM;
+	if (IS_ERR(bo))
+		return PTR_ERR(bo);
 
 	ret = copy_from_user(bo->base.vaddr,
 			     (void __user *)(uintptr_t)args->data,
diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h
index 080865e..51a6333 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.h
+++ b/drivers/gpu/drm/vc4/vc4_drv.h
@@ -91,8 +91,12 @@ struct vc4_dev {
 	struct vc4_bo *overflow_mem;
 	struct work_struct overflow_mem_work;
 
+	int power_refcount;
+
+	/* Mutex controlling the power refcount. */
+	struct mutex power_lock;
+
 	struct {
-		uint32_t last_ct0ca, last_ct1ca;
 		struct timer_list timer;
 		struct work_struct reset_work;
 	} hangcheck;
@@ -142,6 +146,7 @@ struct vc4_seqno_cb {
 };
 
 struct vc4_v3d {
+	struct vc4_dev *vc4;
 	struct platform_device *pdev;
 	void __iomem *regs;
 };
@@ -192,6 +197,11 @@ struct vc4_exec_info {
 	/* Sequence number for this bin/render job. */
 	uint64_t seqno;
 
+	/* Last current addresses the hardware was processing when the
+	 * hangcheck timer checked on us.
+	 */
+	uint32_t last_ct0ca, last_ct1ca;
+
 	/* Kernel-space copy of the ioctl arguments */
 	struct drm_vc4_submit_cl *args;
 
@@ -434,7 +444,6 @@ void vc4_plane_async_set_fb(struct drm_plane *plane,
 extern struct platform_driver vc4_v3d_driver;
 int vc4_v3d_debugfs_ident(struct seq_file *m, void *unused);
 int vc4_v3d_debugfs_regs(struct seq_file *m, void *unused);
-int vc4_v3d_set_power(struct vc4_dev *vc4, bool on);
 
 /* vc4_validate.c */
 int
diff --git a/drivers/gpu/drm/vc4/vc4_gem.c b/drivers/gpu/drm/vc4/vc4_gem.c
index 48ce30a..202aa15 100644
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -23,6 +23,7 @@
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/device.h>
 #include <linux/io.h>
 
@@ -228,8 +229,16 @@ vc4_reset(struct drm_device *dev)
 	struct vc4_dev *vc4 = to_vc4_dev(dev);
 
 	DRM_INFO("Resetting GPU.\n");
-	vc4_v3d_set_power(vc4, false);
-	vc4_v3d_set_power(vc4, true);
+
+	mutex_lock(&vc4->power_lock);
+	if (vc4->power_refcount) {
+		/* Power the device off and back on the by dropping the
+		 * reference on runtime PM.
+		 */
+		pm_runtime_put_sync_suspend(&vc4->v3d->pdev->dev);
+		pm_runtime_get_sync(&vc4->v3d->pdev->dev);
+	}
+	mutex_unlock(&vc4->power_lock);
 
 	vc4_irq_reset(dev);
 
@@ -257,10 +266,17 @@ vc4_hangcheck_elapsed(unsigned long data)
 	struct drm_device *dev = (struct drm_device *)data;
 	struct vc4_dev *vc4 = to_vc4_dev(dev);
 	uint32_t ct0ca, ct1ca;
+	unsigned long irqflags;
+	struct vc4_exec_info *exec;
+
+	spin_lock_irqsave(&vc4->job_lock, irqflags);
+	exec = vc4_first_job(vc4);
 
 	/* If idle, we can stop watching for hangs. */
-	if (list_empty(&vc4->job_list))
+	if (!exec) {
+		spin_unlock_irqrestore(&vc4->job_lock, irqflags);
 		return;
+	}
 
 	ct0ca = V3D_READ(V3D_CTNCA(0));
 	ct1ca = V3D_READ(V3D_CTNCA(1));
@@ -268,14 +284,16 @@ vc4_hangcheck_elapsed(unsigned long data)
 	/* If we've made any progress in execution, rearm the timer
 	 * and wait.
 	 */
-	if (ct0ca != vc4->hangcheck.last_ct0ca ||
-	    ct1ca != vc4->hangcheck.last_ct1ca) {
-		vc4->hangcheck.last_ct0ca = ct0ca;
-		vc4->hangcheck.last_ct1ca = ct1ca;
+	if (ct0ca != exec->last_ct0ca || ct1ca != exec->last_ct1ca) {
+		exec->last_ct0ca = ct0ca;
+		exec->last_ct1ca = ct1ca;
+		spin_unlock_irqrestore(&vc4->job_lock, irqflags);
 		vc4_queue_hangcheck(dev);
 		return;
 	}
 
+	spin_unlock_irqrestore(&vc4->job_lock, irqflags);
+
 	/* We've gone too long with no progress, reset.  This has to
 	 * be done from a work struct, since resetting can sleep and
 	 * this timer hook isn't allowed to.
@@ -340,12 +358,7 @@ vc4_wait_for_seqno(struct drm_device *dev, uint64_t seqno, uint64_t timeout_ns,
 	finish_wait(&vc4->job_wait_queue, &wait);
 	trace_vc4_wait_for_seqno_end(dev, seqno);
 
-	if (ret && ret != -ERESTARTSYS) {
-		DRM_ERROR("timeout waiting for render thread idle\n");
-		return ret;
-	}
-
-	return 0;
+	return ret;
 }
 
 static void
@@ -578,9 +591,9 @@ vc4_get_bcl(struct drm_device *dev, struct vc4_exec_info *exec)
 	}
 
 	bo = vc4_bo_create(dev, exec_size, true);
-	if (!bo) {
+	if (IS_ERR(bo)) {
 		DRM_ERROR("Couldn't allocate BO for binning\n");
-		ret = -ENOMEM;
+		ret = PTR_ERR(bo);
 		goto fail;
 	}
 	exec->exec_bo = &bo->base;
@@ -617,6 +630,7 @@ fail:
 static void
 vc4_complete_exec(struct drm_device *dev, struct vc4_exec_info *exec)
 {
+	struct vc4_dev *vc4 = to_vc4_dev(dev);
 	unsigned i;
 
 	/* Need the struct lock for drm_gem_object_unreference(). */
@@ -635,6 +649,11 @@ vc4_complete_exec(struct drm_device *dev, struct vc4_exec_info *exec)
 	}
 	mutex_unlock(&dev->struct_mutex);
 
+	mutex_lock(&vc4->power_lock);
+	if (--vc4->power_refcount == 0)
+		pm_runtime_put(&vc4->v3d->pdev->dev);
+	mutex_unlock(&vc4->power_lock);
+
 	kfree(exec);
 }
 
@@ -746,6 +765,9 @@ vc4_wait_bo_ioctl(struct drm_device *dev, void *data,
 	struct drm_gem_object *gem_obj;
 	struct vc4_bo *bo;
 
+	if (args->pad != 0)
+		return -EINVAL;
+
 	gem_obj = drm_gem_object_lookup(dev, file_priv, args->handle);
 	if (!gem_obj) {
 		DRM_ERROR("Failed to look up GEM BO %d\n", args->handle);
@@ -772,7 +794,7 @@ vc4_submit_cl_ioctl(struct drm_device *dev, void *data,
 	struct vc4_dev *vc4 = to_vc4_dev(dev);
 	struct drm_vc4_submit_cl *args = data;
 	struct vc4_exec_info *exec;
-	int ret;
+	int ret = 0;
 
 	if ((args->flags & ~VC4_SUBMIT_CL_USE_CLEAR_COLOR) != 0) {
 		DRM_ERROR("Unknown flags: 0x%02x\n", args->flags);
@@ -785,6 +807,15 @@ vc4_submit_cl_ioctl(struct drm_device *dev, void *data,
 		return -ENOMEM;
 	}
 
+	mutex_lock(&vc4->power_lock);
+	if (vc4->power_refcount++ == 0)
+		ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
+	mutex_unlock(&vc4->power_lock);
+	if (ret < 0) {
+		kfree(exec);
+		return ret;
+	}
+
 	exec->args = args;
 	INIT_LIST_HEAD(&exec->unref_list);
 
@@ -839,6 +870,8 @@ vc4_gem_init(struct drm_device *dev)
 		    (unsigned long)dev);
 
 	INIT_WORK(&vc4->job_done_work, vc4_job_done_work);
+
+	mutex_init(&vc4->power_lock);
 }
 
 void
diff --git a/drivers/gpu/drm/vc4/vc4_irq.c b/drivers/gpu/drm/vc4/vc4_irq.c
index b68060e..78a2135 100644
--- a/drivers/gpu/drm/vc4/vc4_irq.c
+++ b/drivers/gpu/drm/vc4/vc4_irq.c
@@ -57,7 +57,7 @@ vc4_overflow_mem_work(struct work_struct *work)
 	struct vc4_bo *bo;
 
 	bo = vc4_bo_create(dev, 256 * 1024, true);
-	if (!bo) {
+	if (IS_ERR(bo)) {
 		DRM_ERROR("Couldn't allocate binner overflow mem\n");
 		return;
 	}
diff --git a/drivers/gpu/drm/vc4/vc4_render_cl.c b/drivers/gpu/drm/vc4/vc4_render_cl.c
index 8a2a312..0f12418 100644
--- a/drivers/gpu/drm/vc4/vc4_render_cl.c
+++ b/drivers/gpu/drm/vc4/vc4_render_cl.c
@@ -316,20 +316,11 @@ static int vc4_create_rcl_bo(struct drm_device *dev, struct vc4_exec_info *exec,
 	size += xtiles * ytiles * loop_body_size;
 
 	setup->rcl = &vc4_bo_create(dev, size, true)->base;
-	if (!setup->rcl)
-		return -ENOMEM;
+	if (IS_ERR(setup->rcl))
+		return PTR_ERR(setup->rcl);
 	list_add_tail(&to_vc4_bo(&setup->rcl->base)->unref_head,
 		      &exec->unref_list);
 
-	rcl_u8(setup, VC4_PACKET_TILE_RENDERING_MODE_CONFIG);
-	rcl_u32(setup,
-		(setup->color_write ? (setup->color_write->paddr +
-				       args->color_write.offset) :
-		 0));
-	rcl_u16(setup, args->width);
-	rcl_u16(setup, args->height);
-	rcl_u16(setup, args->color_write.bits);
-
 	/* The tile buffer gets cleared when the previous tile is stored.  If
 	 * the clear values changed between frames, then the tile buffer has
 	 * stale clear values in it, so we have to do a store in None mode (no
@@ -349,6 +340,15 @@ static int vc4_create_rcl_bo(struct drm_device *dev, struct vc4_exec_info *exec,
 		rcl_u32(setup, 0); /* no address, since we're in None mode */
 	}
 
+	rcl_u8(setup, VC4_PACKET_TILE_RENDERING_MODE_CONFIG);
+	rcl_u32(setup,
+		(setup->color_write ? (setup->color_write->paddr +
+				       args->color_write.offset) :
+		 0));
+	rcl_u16(setup, args->width);
+	rcl_u16(setup, args->height);
+	rcl_u16(setup, args->color_write.bits);
+
 	for (y = min_y_tile; y <= max_y_tile; y++) {
 		for (x = min_x_tile; x <= max_x_tile; x++) {
 			bool first = (x == min_x_tile && y == min_y_tile);
diff --git a/drivers/gpu/drm/vc4/vc4_v3d.c b/drivers/gpu/drm/vc4/vc4_v3d.c
index 314ff71..31de5d1 100644
--- a/drivers/gpu/drm/vc4/vc4_v3d.c
+++ b/drivers/gpu/drm/vc4/vc4_v3d.c
@@ -17,6 +17,7 @@
  */
 
 #include "linux/component.h"
+#include "linux/pm_runtime.h"
 #include "vc4_drv.h"
 #include "vc4_regs.h"
 
@@ -144,18 +145,6 @@ int vc4_v3d_debugfs_ident(struct seq_file *m, void *unused)
 }
 #endif /* CONFIG_DEBUG_FS */
 
-int
-vc4_v3d_set_power(struct vc4_dev *vc4, bool on)
-{
-	/* XXX: This interface is needed for GPU reset, and the way to
-	 * do it is to turn our power domain off and back on.  We
-	 * can't just reset from within the driver, because the reset
-	 * bits are in the power domain's register area, and get set
-	 * during the poweron process.
-	 */
-	return 0;
-}
-
 static void vc4_v3d_init_hw(struct drm_device *dev)
 {
 	struct vc4_dev *vc4 = to_vc4_dev(dev);
@@ -167,6 +156,29 @@ static void vc4_v3d_init_hw(struct drm_device *dev)
 	V3D_WRITE(V3D_VPMBASE, 0);
 }
 
+#ifdef CONFIG_PM
+static int vc4_v3d_runtime_suspend(struct device *dev)
+{
+	struct vc4_v3d *v3d = dev_get_drvdata(dev);
+	struct vc4_dev *vc4 = v3d->vc4;
+
+	vc4_irq_uninstall(vc4->dev);
+
+	return 0;
+}
+
+static int vc4_v3d_runtime_resume(struct device *dev)
+{
+	struct vc4_v3d *v3d = dev_get_drvdata(dev);
+	struct vc4_dev *vc4 = v3d->vc4;
+
+	vc4_v3d_init_hw(vc4->dev);
+	vc4_irq_postinstall(vc4->dev);
+
+	return 0;
+}
+#endif
+
 static int vc4_v3d_bind(struct device *dev, struct device *master, void *data)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -179,6 +191,8 @@ static int vc4_v3d_bind(struct device *dev, struct device *master, void *data)
 	if (!v3d)
 		return -ENOMEM;
 
+	dev_set_drvdata(dev, v3d);
+
 	v3d->pdev = pdev;
 
 	v3d->regs = vc4_ioremap_regs(pdev, 0);
@@ -186,6 +200,7 @@ static int vc4_v3d_bind(struct device *dev, struct device *master, void *data)
 		return PTR_ERR(v3d->regs);
 
 	vc4->v3d = v3d;
+	v3d->vc4 = vc4;
 
 	if (V3D_READ(V3D_IDENT0) != V3D_EXPECTED_IDENT0) {
 		DRM_ERROR("V3D_IDENT0 read 0x%08x instead of 0x%08x\n",
@@ -207,6 +222,8 @@ static int vc4_v3d_bind(struct device *dev, struct device *master, void *data)
 		return ret;
 	}
 
+	pm_runtime_enable(dev);
+
 	return 0;
 }
 
@@ -216,6 +233,8 @@ static void vc4_v3d_unbind(struct device *dev, struct device *master,
 	struct drm_device *drm = dev_get_drvdata(master);
 	struct vc4_dev *vc4 = to_vc4_dev(drm);
 
+	pm_runtime_disable(dev);
+
 	drm_irq_uninstall(drm);
 
 	/* Disable the binner's overflow memory address, so the next
@@ -228,6 +247,10 @@ static void vc4_v3d_unbind(struct device *dev, struct device *master,
 	vc4->v3d = NULL;
 }
 
+static const struct dev_pm_ops vc4_v3d_pm_ops = {
+	SET_RUNTIME_PM_OPS(vc4_v3d_runtime_suspend, vc4_v3d_runtime_resume, NULL)
+};
+
 static const struct component_ops vc4_v3d_ops = {
 	.bind   = vc4_v3d_bind,
 	.unbind = vc4_v3d_unbind,
@@ -255,5 +278,6 @@ struct platform_driver vc4_v3d_driver = {
 	.driver = {
 		.name = "vc4_v3d",
 		.of_match_table = vc4_v3d_dt_match,
+		.pm = &vc4_v3d_pm_ops,
 	},
 };
diff --git a/drivers/gpu/drm/vc4/vc4_validate.c b/drivers/gpu/drm/vc4/vc4_validate.c
index e26d9f6..24c2c74 100644
--- a/drivers/gpu/drm/vc4/vc4_validate.c
+++ b/drivers/gpu/drm/vc4/vc4_validate.c
@@ -401,8 +401,8 @@ validate_tile_binning_config(VALIDATE_ARGS)
 	tile_bo = vc4_bo_create(dev, exec->tile_alloc_offset + tile_alloc_size,
 				true);
 	exec->tile_bo = &tile_bo->base;
-	if (!exec->tile_bo)
-		return -ENOMEM;
+	if (IS_ERR(exec->tile_bo))
+		return PTR_ERR(exec->tile_bo);
 	list_add_tail(&tile_bo->unref_head, &exec->unref_list);
 
 	/* tile alloc address. */
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 1161d68..56dd261 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -219,6 +219,21 @@ error0:
 }
 EXPORT_SYMBOL_GPL(vmbus_open);
 
+/* Used for Hyper-V Socket: a guest client's connect() to the host */
+int vmbus_send_tl_connect_request(const uuid_le *shv_guest_servie_id,
+				  const uuid_le *shv_host_servie_id)
+{
+	struct vmbus_channel_tl_connect_request conn_msg;
+
+	memset(&conn_msg, 0, sizeof(conn_msg));
+	conn_msg.header.msgtype = CHANNELMSG_TL_CONNECT_REQUEST;
+	conn_msg.guest_endpoint_id = *shv_guest_servie_id;
+	conn_msg.host_service_id = *shv_host_servie_id;
+
+	return vmbus_post_msg(&conn_msg, sizeof(conn_msg));
+}
+EXPORT_SYMBOL_GPL(vmbus_send_tl_connect_request);
+
 /*
  * create_gpadl_header - Creates a gpadl for the specified buffer
  */
@@ -624,6 +639,7 @@ int vmbus_sendpacket_ctl(struct vmbus_channel *channel, void *buffer,
 	u64 aligned_data = 0;
 	int ret;
 	bool signal = false;
+	bool lock = channel->acquire_ring_lock;
 	int num_vecs = ((bufferlen != 0) ? 3 : 1);
 
 
@@ -643,7 +659,7 @@ int vmbus_sendpacket_ctl(struct vmbus_channel *channel, void *buffer,
 	bufferlist[2].iov_len = (packetlen_aligned - packetlen);
 
 	ret = hv_ringbuffer_write(&channel->outbound, bufferlist, num_vecs,
-				  &signal);
+				  &signal, lock);
 
 	/*
 	 * Signalling the host is conditional on many factors:
@@ -659,6 +675,9 @@ int vmbus_sendpacket_ctl(struct vmbus_channel *channel, void *buffer,
 	 * If we cannot write to the ring-buffer; signal the host
 	 * even if we may not have written anything. This is a rare
 	 * enough condition that it should not matter.
+	 * NOTE: in this case, the hvsock channel is an exception, because
+	 * it looks the host side's hvsock implementation has a throttling
+	 * mechanism which can hurt the performance otherwise.
 	 */
 
 	if (channel->signal_policy)
@@ -666,7 +685,8 @@ int vmbus_sendpacket_ctl(struct vmbus_channel *channel, void *buffer,
 	else
 		kick_q = true;
 
-	if (((ret == 0) && kick_q && signal) || (ret))
+	if (((ret == 0) && kick_q && signal) ||
+	    (ret && !is_hvsock_channel(channel)))
 		vmbus_setevent(channel);
 
 	return ret;
@@ -719,6 +739,7 @@ int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel,
 	struct kvec bufferlist[3];
 	u64 aligned_data = 0;
 	bool signal = false;
+	bool lock = channel->acquire_ring_lock;
 
 	if (pagecount > MAX_PAGE_BUFFER_COUNT)
 		return -EINVAL;
@@ -755,7 +776,8 @@ int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel,
 	bufferlist[2].iov_base = &aligned_data;
 	bufferlist[2].iov_len = (packetlen_aligned - packetlen);
 
-	ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3, &signal);
+	ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3,
+				  &signal, lock);
 
 	/*
 	 * Signalling the host is conditional on many factors:
@@ -818,6 +840,7 @@ int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel,
 	struct kvec bufferlist[3];
 	u64 aligned_data = 0;
 	bool signal = false;
+	bool lock = channel->acquire_ring_lock;
 
 	packetlen = desc_size + bufferlen;
 	packetlen_aligned = ALIGN(packetlen, sizeof(u64));
@@ -837,7 +860,8 @@ int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel,
 	bufferlist[2].iov_base = &aligned_data;
 	bufferlist[2].iov_len = (packetlen_aligned - packetlen);
 
-	ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3, &signal);
+	ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3,
+				  &signal, lock);
 
 	if (ret == 0 && signal)
 		vmbus_setevent(channel);
@@ -862,6 +886,7 @@ int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel,
 	struct kvec bufferlist[3];
 	u64 aligned_data = 0;
 	bool signal = false;
+	bool lock = channel->acquire_ring_lock;
 	u32 pfncount = NUM_PAGES_SPANNED(multi_pagebuffer->offset,
 					 multi_pagebuffer->len);
 
@@ -900,7 +925,8 @@ int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel,
 	bufferlist[2].iov_base = &aligned_data;
 	bufferlist[2].iov_len = (packetlen_aligned - packetlen);
 
-	ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3, &signal);
+	ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3,
+				  &signal, lock);
 
 	if (ret == 0 && signal)
 		vmbus_setevent(channel);
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 1c1ad47..b40f429 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -28,12 +28,127 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/completion.h>
+#include <linux/delay.h>
 #include <linux/hyperv.h>
 
 #include "hyperv_vmbus.h"
 
-static void init_vp_index(struct vmbus_channel *channel,
-			  const uuid_le *type_guid);
+static void init_vp_index(struct vmbus_channel *channel, u16 dev_type);
+
+static const struct vmbus_device vmbus_devs[] = {
+	/* IDE */
+	{ .dev_type = HV_IDE,
+	  HV_IDE_GUID,
+	  .perf_device = true,
+	},
+
+	/* SCSI */
+	{ .dev_type = HV_SCSI,
+	  HV_SCSI_GUID,
+	  .perf_device = true,
+	},
+
+	/* Fibre Channel */
+	{ .dev_type = HV_FC,
+	  HV_SYNTHFC_GUID,
+	  .perf_device = true,
+	},
+
+	/* Synthetic NIC */
+	{ .dev_type = HV_NIC,
+	  HV_NIC_GUID,
+	  .perf_device = true,
+	},
+
+	/* Network Direct */
+	{ .dev_type = HV_ND,
+	  HV_ND_GUID,
+	  .perf_device = true,
+	},
+
+	/* PCIE */
+	{ .dev_type = HV_PCIE,
+	  HV_PCIE_GUID,
+	  .perf_device = true,
+	},
+
+	/* Synthetic Frame Buffer */
+	{ .dev_type = HV_FB,
+	  HV_SYNTHVID_GUID,
+	  .perf_device = false,
+	},
+
+	/* Synthetic Keyboard */
+	{ .dev_type = HV_KBD,
+	  HV_KBD_GUID,
+	  .perf_device = false,
+	},
+
+	/* Synthetic MOUSE */
+	{ .dev_type = HV_MOUSE,
+	  HV_MOUSE_GUID,
+	  .perf_device = false,
+	},
+
+	/* KVP */
+	{ .dev_type = HV_KVP,
+	  HV_KVP_GUID,
+	  .perf_device = false,
+	},
+
+	/* Time Synch */
+	{ .dev_type = HV_TS,
+	  HV_TS_GUID,
+	  .perf_device = false,
+	},
+
+	/* Heartbeat */
+	{ .dev_type = HV_HB,
+	  HV_HEART_BEAT_GUID,
+	  .perf_device = false,
+	},
+
+	/* Shutdown */
+	{ .dev_type = HV_SHUTDOWN,
+	  HV_SHUTDOWN_GUID,
+	  .perf_device = false,
+	},
+
+	/* File copy */
+	{ .dev_type = HV_FCOPY,
+	  HV_FCOPY_GUID,
+	  .perf_device = false,
+	},
+
+	/* Backup */
+	{ .dev_type = HV_BACKUP,
+	  HV_VSS_GUID,
+	  .perf_device = false,
+	},
+
+	/* Dynamic Memory */
+	{ .dev_type = HV_DM,
+	  HV_DM_GUID,
+	  .perf_device = false,
+	},
+
+	/* Unknown GUID */
+	{ .dev_type = HV_UNKOWN,
+	  .perf_device = false,
+	},
+};
+
+static u16 hv_get_dev_type(const uuid_le *guid)
+{
+	u16 i;
+
+	for (i = HV_IDE; i < HV_UNKOWN; i++) {
+		if (!uuid_le_cmp(*guid, vmbus_devs[i].guid))
+			return i;
+	}
+	pr_info("Unknown GUID: %pUl\n", guid);
+	return i;
+}
 
 /**
  * vmbus_prep_negotiate_resp() - Create default response for Hyper-V Negotiate message
@@ -144,6 +259,7 @@ static struct vmbus_channel *alloc_channel(void)
 		return NULL;
 
 	channel->id = atomic_inc_return(&chan_num);
+	channel->acquire_ring_lock = true;
 	spin_lock_init(&channel->inbound_lock);
 	spin_lock_init(&channel->lock);
 
@@ -195,6 +311,7 @@ void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid)
 	vmbus_release_relid(relid);
 
 	BUG_ON(!channel->rescind);
+	BUG_ON(!mutex_is_locked(&vmbus_connection.channel_mutex));
 
 	if (channel->target_cpu != get_cpu()) {
 		put_cpu();
@@ -206,9 +323,7 @@ void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid)
 	}
 
 	if (channel->primary_channel == NULL) {
-		mutex_lock(&vmbus_connection.channel_mutex);
 		list_del(&channel->listentry);
-		mutex_unlock(&vmbus_connection.channel_mutex);
 
 		primary_channel = channel;
 	} else {
@@ -251,6 +366,8 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel)
 	struct vmbus_channel *channel;
 	bool fnew = true;
 	unsigned long flags;
+	u16 dev_type;
+	int ret;
 
 	/* Make sure this is a new offer */
 	mutex_lock(&vmbus_connection.channel_mutex);
@@ -288,7 +405,9 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel)
 			goto err_free_chan;
 	}
 
-	init_vp_index(newchannel, &newchannel->offermsg.offer.if_type);
+	dev_type = hv_get_dev_type(&newchannel->offermsg.offer.if_type);
+
+	init_vp_index(newchannel, dev_type);
 
 	if (newchannel->target_cpu != get_cpu()) {
 		put_cpu();
@@ -325,12 +444,17 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel)
 	if (!newchannel->device_obj)
 		goto err_deq_chan;
 
+	newchannel->device_obj->device_id = dev_type;
 	/*
 	 * Add the new device to the bus. This will kick off device-driver
 	 * binding which eventually invokes the device driver's AddDevice()
 	 * method.
 	 */
-	if (vmbus_device_register(newchannel->device_obj) != 0) {
+	mutex_lock(&vmbus_connection.channel_mutex);
+	ret = vmbus_device_register(newchannel->device_obj);
+	mutex_unlock(&vmbus_connection.channel_mutex);
+
+	if (ret != 0) {
 		pr_err("unable to add child device object (relid %d)\n",
 			newchannel->offermsg.child_relid);
 		kfree(newchannel->device_obj);
@@ -358,37 +482,6 @@ err_free_chan:
 	free_channel(newchannel);
 }
 
-enum {
-	IDE = 0,
-	SCSI,
-	FC,
-	NIC,
-	ND_NIC,
-	PCIE,
-	MAX_PERF_CHN,
-};
-
-/*
- * This is an array of device_ids (device types) that are performance critical.
- * We attempt to distribute the interrupt load for these devices across
- * all available CPUs.
- */
-static const struct hv_vmbus_device_id hp_devs[] = {
-	/* IDE */
-	{ HV_IDE_GUID, },
-	/* Storage - SCSI */
-	{ HV_SCSI_GUID, },
-	/* Storage - FC */
-	{ HV_SYNTHFC_GUID, },
-	/* Network */
-	{ HV_NIC_GUID, },
-	/* NetworkDirect Guest RDMA */
-	{ HV_ND_GUID, },
-	/* PCI Express Pass Through */
-	{ HV_PCIE_GUID, },
-};
-
-
 /*
  * We use this state to statically distribute the channel interrupt load.
  */
@@ -405,22 +498,15 @@ static int next_numa_node_id;
  * For pre-win8 hosts or non-performance critical channels we assign the
  * first CPU in the first NUMA node.
  */
-static void init_vp_index(struct vmbus_channel *channel, const uuid_le *type_guid)
+static void init_vp_index(struct vmbus_channel *channel, u16 dev_type)
 {
 	u32 cur_cpu;
-	int i;
-	bool perf_chn = false;
+	bool perf_chn = vmbus_devs[dev_type].perf_device;
 	struct vmbus_channel *primary = channel->primary_channel;
 	int next_node;
 	struct cpumask available_mask;
 	struct cpumask *alloced_mask;
 
-	for (i = IDE; i < MAX_PERF_CHN; i++) {
-		if (!uuid_le_cmp(*type_guid, hp_devs[i].guid)) {
-			perf_chn = true;
-			break;
-		}
-	}
 	if ((vmbus_proto_version == VERSION_WS2008) ||
 	    (vmbus_proto_version == VERSION_WIN7) || (!perf_chn)) {
 		/*
@@ -469,6 +555,17 @@ static void init_vp_index(struct vmbus_channel *channel, const uuid_le *type_gui
 		    cpumask_of_node(primary->numa_node));
 
 	cur_cpu = -1;
+
+	/*
+	 * Normally Hyper-V host doesn't create more subchannels than there
+	 * are VCPUs on the node but it is possible when not all present VCPUs
+	 * on the node are initialized by guest. Clear the alloced_cpus_in_node
+	 * to start over.
+	 */
+	if (cpumask_equal(&primary->alloced_cpus_in_node,
+			  cpumask_of_node(primary->numa_node)))
+		cpumask_clear(&primary->alloced_cpus_in_node);
+
 	while (true) {
 		cur_cpu = cpumask_next(cur_cpu, &available_mask);
 		if (cur_cpu >= nr_cpu_ids) {
@@ -498,6 +595,40 @@ static void init_vp_index(struct vmbus_channel *channel, const uuid_le *type_gui
 	channel->target_vp = hv_context.vp_index[cur_cpu];
 }
 
+static void vmbus_wait_for_unload(void)
+{
+	int cpu = smp_processor_id();
+	void *page_addr = hv_context.synic_message_page[cpu];
+	struct hv_message *msg = (struct hv_message *)page_addr +
+				  VMBUS_MESSAGE_SINT;
+	struct vmbus_channel_message_header *hdr;
+	bool unloaded = false;
+
+	while (1) {
+		if (msg->header.message_type == HVMSG_NONE) {
+			mdelay(10);
+			continue;
+		}
+
+		hdr = (struct vmbus_channel_message_header *)msg->u.payload;
+		if (hdr->msgtype == CHANNELMSG_UNLOAD_RESPONSE)
+			unloaded = true;
+
+		msg->header.message_type = HVMSG_NONE;
+		/*
+		 * header.message_type needs to be written before we do
+		 * wrmsrl() below.
+		 */
+		mb();
+
+		if (msg->header.message_flags.msg_pending)
+			wrmsrl(HV_X64_MSR_EOM, 0);
+
+		if (unloaded)
+			break;
+	}
+}
+
 /*
  * vmbus_unload_response - Handler for the unload response.
  */
@@ -523,7 +654,14 @@ void vmbus_initiate_unload(void)
 	hdr.msgtype = CHANNELMSG_UNLOAD;
 	vmbus_post_msg(&hdr, sizeof(struct vmbus_channel_message_header));
 
-	wait_for_completion(&vmbus_connection.unload_event);
+	/*
+	 * vmbus_initiate_unload() is also called on crash and the crash can be
+	 * happening in an interrupt context, where scheduling is impossible.
+	 */
+	if (!in_interrupt())
+		wait_for_completion(&vmbus_connection.unload_event);
+	else
+		vmbus_wait_for_unload();
 }
 
 /*
@@ -592,6 +730,8 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
 	struct device *dev;
 
 	rescind = (struct vmbus_channel_rescind_offer *)hdr;
+
+	mutex_lock(&vmbus_connection.channel_mutex);
 	channel = relid2channel(rescind->child_relid);
 
 	if (channel == NULL) {
@@ -600,7 +740,7 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
 		 * vmbus_process_offer(), we have already invoked
 		 * vmbus_release_relid() on error.
 		 */
-		return;
+		goto out;
 	}
 
 	spin_lock_irqsave(&channel->lock, flags);
@@ -608,6 +748,10 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
 	spin_unlock_irqrestore(&channel->lock, flags);
 
 	if (channel->device_obj) {
+		if (channel->chn_rescind_callback) {
+			channel->chn_rescind_callback(channel);
+			goto out;
+		}
 		/*
 		 * We will have to unregister this device from the
 		 * driver core.
@@ -621,8 +765,25 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
 		hv_process_channel_removal(channel,
 			channel->offermsg.child_relid);
 	}
+
+out:
+	mutex_unlock(&vmbus_connection.channel_mutex);
 }
 
+void vmbus_hvsock_device_unregister(struct vmbus_channel *channel)
+{
+	mutex_lock(&vmbus_connection.channel_mutex);
+
+	BUG_ON(!is_hvsock_channel(channel));
+
+	channel->rescind = true;
+	vmbus_device_unregister(channel->device_obj);
+
+	mutex_unlock(&vmbus_connection.channel_mutex);
+}
+EXPORT_SYMBOL_GPL(vmbus_hvsock_device_unregister);
+
+
 /*
  * vmbus_onoffers_delivered -
  * This is invoked when all offers have been delivered.
@@ -825,6 +986,10 @@ struct vmbus_channel_message_table_entry
 	{CHANNELMSG_VERSION_RESPONSE,		1, vmbus_onversion_response},
 	{CHANNELMSG_UNLOAD,			0, NULL},
 	{CHANNELMSG_UNLOAD_RESPONSE,		1, vmbus_unload_response},
+	{CHANNELMSG_18,				0, NULL},
+	{CHANNELMSG_19,				0, NULL},
+	{CHANNELMSG_20,				0, NULL},
+	{CHANNELMSG_TL_CONNECT_REQUEST,		0, NULL},
 };
 
 /*
@@ -973,3 +1138,10 @@ bool vmbus_are_subchannels_present(struct vmbus_channel *primary)
 	return ret;
 }
 EXPORT_SYMBOL_GPL(vmbus_are_subchannels_present);
+
+void vmbus_set_chn_rescind_callback(struct vmbus_channel *channel,
+		void (*chn_rescind_cb)(struct vmbus_channel *))
+{
+	channel->chn_rescind_callback = chn_rescind_cb;
+}
+EXPORT_SYMBOL_GPL(vmbus_set_chn_rescind_callback);
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 3dc5a9c..fa86b2c 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -288,7 +288,8 @@ struct vmbus_channel *relid2channel(u32 relid)
 	struct list_head *cur, *tmp;
 	struct vmbus_channel *cur_sc;
 
-	mutex_lock(&vmbus_connection.channel_mutex);
+	BUG_ON(!mutex_is_locked(&vmbus_connection.channel_mutex));
+
 	list_for_each_entry(channel, &vmbus_connection.chn_list, listentry) {
 		if (channel->offermsg.child_relid == relid) {
 			found_channel = channel;
@@ -307,7 +308,6 @@ struct vmbus_channel *relid2channel(u32 relid)
 			}
 		}
 	}
-	mutex_unlock(&vmbus_connection.channel_mutex);
 
 	return found_channel;
 }
@@ -474,7 +474,7 @@ int vmbus_post_msg(void *buffer, size_t buflen)
 /*
  * vmbus_set_event - Send an event notification to the parent
  */
-int vmbus_set_event(struct vmbus_channel *channel)
+void vmbus_set_event(struct vmbus_channel *channel)
 {
 	u32 child_relid = channel->offermsg.child_relid;
 
@@ -485,5 +485,5 @@ int vmbus_set_event(struct vmbus_channel *channel)
 			(child_relid >> 5));
 	}
 
-	return hv_signal_event(channel->sig_event);
+	hv_do_hypercall(HVCALL_SIGNAL_EVENT, channel->sig_event, NULL);
 }
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 11bca51..ccb335f 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -295,8 +295,14 @@ void hv_cleanup(void)
 	 * Cleanup the TSC page based CS.
 	 */
 	if (ms_hyperv.features & HV_X64_MSR_REFERENCE_TSC_AVAILABLE) {
-		clocksource_change_rating(&hyperv_cs_tsc, 10);
-		clocksource_unregister(&hyperv_cs_tsc);
+		/*
+		 * Crash can happen in an interrupt context and unregistering
+		 * a clocksource is impossible and redundant in this case.
+		 */
+		if (!oops_in_progress) {
+			clocksource_change_rating(&hyperv_cs_tsc, 10);
+			clocksource_unregister(&hyperv_cs_tsc);
+		}
 
 		hypercall_msr.as_uint64 = 0;
 		wrmsrl(HV_X64_MSR_REFERENCE_TSC, hypercall_msr.as_uint64);
@@ -337,22 +343,6 @@ int hv_post_message(union hv_connection_id connection_id,
 	return status & 0xFFFF;
 }
 
-
-/*
- * hv_signal_event -
- * Signal an event on the specified connection using the hypervisor event IPC.
- *
- * This involves a hypercall.
- */
-int hv_signal_event(void *con_id)
-{
-	u64 status;
-
-	status = hv_do_hypercall(HVCALL_SIGNAL_EVENT, con_id, NULL);
-
-	return status & 0xFFFF;
-}
-
 static int hv_ce_set_next_event(unsigned long delta,
 				struct clock_event_device *evt)
 {
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 4ebc796..b9ea7f5 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -501,8 +501,6 @@ extern int hv_post_message(union hv_connection_id connection_id,
 			 enum hv_message_type message_type,
 			 void *payload, size_t payload_size);
 
-extern int hv_signal_event(void *con_id);
-
 extern int hv_synic_alloc(void);
 
 extern void hv_synic_free(void);
@@ -531,7 +529,7 @@ void hv_ringbuffer_cleanup(struct hv_ring_buffer_info *ring_info);
 
 int hv_ringbuffer_write(struct hv_ring_buffer_info *ring_info,
 		    struct kvec *kv_list,
-		    u32 kv_count, bool *signal);
+		    u32 kv_count, bool *signal, bool lock);
 
 int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
 		       void *buffer, u32 buflen, u32 *buffer_actual_len,
@@ -650,7 +648,7 @@ void vmbus_disconnect(void);
 
 int vmbus_post_msg(void *buffer, size_t buflen);
 
-int vmbus_set_event(struct vmbus_channel *channel);
+void vmbus_set_event(struct vmbus_channel *channel);
 
 void vmbus_on_event(unsigned long data);
 
diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c
index b53702c..5613e2b 100644
--- a/drivers/hv/ring_buffer.c
+++ b/drivers/hv/ring_buffer.c
@@ -314,7 +314,7 @@ void hv_ringbuffer_cleanup(struct hv_ring_buffer_info *ring_info)
 
 /* Write to the ring buffer. */
 int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
-		    struct kvec *kv_list, u32 kv_count, bool *signal)
+		    struct kvec *kv_list, u32 kv_count, bool *signal, bool lock)
 {
 	int i = 0;
 	u32 bytes_avail_towrite;
@@ -324,14 +324,15 @@ int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
 	u32 next_write_location;
 	u32 old_write;
 	u64 prev_indices = 0;
-	unsigned long flags;
+	unsigned long flags = 0;
 
 	for (i = 0; i < kv_count; i++)
 		totalbytes_towrite += kv_list[i].iov_len;
 
 	totalbytes_towrite += sizeof(u64);
 
-	spin_lock_irqsave(&outring_info->ring_lock, flags);
+	if (lock)
+		spin_lock_irqsave(&outring_info->ring_lock, flags);
 
 	hv_get_ringbuffer_availbytes(outring_info,
 				&bytes_avail_toread,
@@ -343,7 +344,8 @@ int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
 	 * is empty since the read index == write index.
 	 */
 	if (bytes_avail_towrite <= totalbytes_towrite) {
-		spin_unlock_irqrestore(&outring_info->ring_lock, flags);
+		if (lock)
+			spin_unlock_irqrestore(&outring_info->ring_lock, flags);
 		return -EAGAIN;
 	}
 
@@ -374,7 +376,8 @@ int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
 	hv_set_next_write_location(outring_info, next_write_location);
 
 
-	spin_unlock_irqrestore(&outring_info->ring_lock, flags);
+	if (lock)
+		spin_unlock_irqrestore(&outring_info->ring_lock, flags);
 
 	*signal = hv_need_to_signal(old_write, outring_info);
 	return 0;
@@ -388,7 +391,6 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
 	u32 bytes_avail_toread;
 	u32 next_read_location = 0;
 	u64 prev_indices = 0;
-	unsigned long flags;
 	struct vmpacket_descriptor desc;
 	u32 offset;
 	u32 packetlen;
@@ -397,7 +399,6 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
 	if (buflen <= 0)
 		return -EINVAL;
 
-	spin_lock_irqsave(&inring_info->ring_lock, flags);
 
 	*buffer_actual_len = 0;
 	*requestid = 0;
@@ -412,7 +413,7 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
 		 * No error is set when there is even no header, drivers are
 		 * supposed to analyze buffer_actual_len.
 		 */
-		goto out_unlock;
+		return ret;
 	}
 
 	next_read_location = hv_get_next_read_location(inring_info);
@@ -425,15 +426,11 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
 	*buffer_actual_len = packetlen;
 	*requestid = desc.trans_id;
 
-	if (bytes_avail_toread < packetlen + offset) {
-		ret = -EAGAIN;
-		goto out_unlock;
-	}
+	if (bytes_avail_toread < packetlen + offset)
+		return -EAGAIN;
 
-	if (packetlen > buflen) {
-		ret = -ENOBUFS;
-		goto out_unlock;
-	}
+	if (packetlen > buflen)
+		return -ENOBUFS;
 
 	next_read_location =
 		hv_get_next_readlocation_withoffset(inring_info, offset);
@@ -460,7 +457,5 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
 
 	*signal = hv_need_to_signal_on_read(bytes_avail_towrite, inring_info);
 
-out_unlock:
-	spin_unlock_irqrestore(&inring_info->ring_lock, flags);
 	return ret;
 }
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 328e4c3..063e5f5 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -477,6 +477,24 @@ static ssize_t channel_vp_mapping_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(channel_vp_mapping);
 
+static ssize_t vendor_show(struct device *dev,
+			   struct device_attribute *dev_attr,
+			   char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	return sprintf(buf, "0x%x\n", hv_dev->vendor_id);
+}
+static DEVICE_ATTR_RO(vendor);
+
+static ssize_t device_show(struct device *dev,
+			   struct device_attribute *dev_attr,
+			   char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	return sprintf(buf, "0x%x\n", hv_dev->device_id);
+}
+static DEVICE_ATTR_RO(device);
+
 /* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
 static struct attribute *vmbus_attrs[] = {
 	&dev_attr_id.attr,
@@ -502,6 +520,8 @@ static struct attribute *vmbus_attrs[] = {
 	&dev_attr_in_read_bytes_avail.attr,
 	&dev_attr_in_write_bytes_avail.attr,
 	&dev_attr_channel_vp_mapping.attr,
+	&dev_attr_vendor.attr,
+	&dev_attr_device.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(vmbus);
@@ -562,6 +582,10 @@ static int vmbus_match(struct device *device, struct device_driver *driver)
 	struct hv_driver *drv = drv_to_hv_drv(driver);
 	struct hv_device *hv_dev = device_to_hv_device(device);
 
+	/* The hv_sock driver handles all hv_sock offers. */
+	if (is_hvsock_channel(hv_dev->channel))
+		return drv->hvsock;
+
 	if (hv_vmbus_get_id(drv->id_table, &hv_dev->dev_type))
 		return 1;
 
@@ -957,6 +981,7 @@ struct hv_device *vmbus_device_create(const uuid_le *type,
 	memcpy(&child_device_obj->dev_type, type, sizeof(uuid_le));
 	memcpy(&child_device_obj->dev_instance, instance,
 	       sizeof(uuid_le));
+	child_device_obj->vendor_id = 0x1414; /* MSFT vendor ID */
 
 
 	return child_device_obj;
diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c
index f155b83..2b3105c 100644
--- a/drivers/hwmon/ads1015.c
+++ b/drivers/hwmon/ads1015.c
@@ -126,7 +126,7 @@ static int ads1015_reg_to_mv(struct i2c_client *client, unsigned int channel,
 	struct ads1015_data *data = i2c_get_clientdata(client);
 	unsigned int pga = data->channel_data[channel].pga;
 	int fullscale = fullscale_table[pga];
-	const unsigned mask = data->id == ads1115 ? 0x7fff : 0x7ff0;
+	const int mask = data->id == ads1115 ? 0x7fff : 0x7ff0;
 
 	return DIV_ROUND_CLOSEST(reg * fullscale, mask);
 }
diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c
index 82de3de..685568b 100644
--- a/drivers/hwmon/gpio-fan.c
+++ b/drivers/hwmon/gpio-fan.c
@@ -406,16 +406,11 @@ static int gpio_fan_get_cur_state(struct thermal_cooling_device *cdev,
 				  unsigned long *state)
 {
 	struct gpio_fan_data *fan_data = cdev->devdata;
-	int r;
 
 	if (!fan_data)
 		return -EINVAL;
 
-	r = get_fan_speed_index(fan_data);
-	if (r < 0)
-		return r;
-
-	*state = r;
+	*state = fan_data->speed_index;
 	return 0;
 }
 
diff --git a/drivers/hwtracing/coresight/Kconfig b/drivers/hwtracing/coresight/Kconfig
index c85935f..db05410 100644
--- a/drivers/hwtracing/coresight/Kconfig
+++ b/drivers/hwtracing/coresight/Kconfig
@@ -4,6 +4,7 @@
 menuconfig CORESIGHT
 	bool "CoreSight Tracing Support"
 	select ARM_AMBA
+	select PERF_EVENTS
 	help
 	  This framework provides a kernel interface for the CoreSight debug
 	  and trace drivers to register themselves with. It's intended to build
diff --git a/drivers/hwtracing/coresight/Makefile b/drivers/hwtracing/coresight/Makefile
index 99f8e5f..cf8c6d6 100644
--- a/drivers/hwtracing/coresight/Makefile
+++ b/drivers/hwtracing/coresight/Makefile
@@ -8,6 +8,8 @@ obj-$(CONFIG_CORESIGHT_SINK_TPIU) += coresight-tpiu.o
 obj-$(CONFIG_CORESIGHT_SINK_ETBV10) += coresight-etb10.o
 obj-$(CONFIG_CORESIGHT_LINKS_AND_SINKS) += coresight-funnel.o \
 					   coresight-replicator.o
-obj-$(CONFIG_CORESIGHT_SOURCE_ETM3X) += coresight-etm3x.o coresight-etm-cp14.o
+obj-$(CONFIG_CORESIGHT_SOURCE_ETM3X) += coresight-etm3x.o coresight-etm-cp14.o \
+					coresight-etm3x-sysfs.o \
+					coresight-etm-perf.o
 obj-$(CONFIG_CORESIGHT_SOURCE_ETM4X) += coresight-etm4x.o
 obj-$(CONFIG_CORESIGHT_QCOM_REPLICATOR) += coresight-replicator-qcom.o
diff --git a/drivers/hwtracing/coresight/coresight-etb10.c b/drivers/hwtracing/coresight/coresight-etb10.c
index 77d0f9c..acbce79 100644
--- a/drivers/hwtracing/coresight/coresight-etb10.c
+++ b/drivers/hwtracing/coresight/coresight-etb10.c
@@ -1,5 +1,7 @@
 /* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
  *
+ * Description: CoreSight Embedded Trace Buffer driver
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
@@ -10,8 +12,8 @@
  * GNU General Public License for more details.
  */
 
+#include <asm/local.h>
 #include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/device.h>
@@ -27,6 +29,11 @@
 #include <linux/coresight.h>
 #include <linux/amba/bus.h>
 #include <linux/clk.h>
+#include <linux/circ_buf.h>
+#include <linux/mm.h>
+#include <linux/perf_event.h>
+
+#include <asm/local.h>
 
 #include "coresight-priv.h"
 
@@ -64,6 +71,26 @@
 #define ETB_FRAME_SIZE_WORDS	4
 
 /**
+ * struct cs_buffer - keep track of a recording session' specifics
+ * @cur:	index of the current buffer
+ * @nr_pages:	max number of pages granted to us
+ * @offset:	offset within the current buffer
+ * @data_size:	how much we collected in this run
+ * @lost:	other than zero if we had a HW buffer wrap around
+ * @snapshot:	is this run in snapshot mode
+ * @data_pages:	a handle the ring buffer
+ */
+struct cs_buffers {
+	unsigned int		cur;
+	unsigned int		nr_pages;
+	unsigned long		offset;
+	local_t			data_size;
+	local_t			lost;
+	bool			snapshot;
+	void			**data_pages;
+};
+
+/**
  * struct etb_drvdata - specifics associated to an ETB component
  * @base:	memory mapped base address for this component.
  * @dev:	the device entity associated to this component.
@@ -71,10 +98,10 @@
  * @csdev:	component vitals needed by the framework.
  * @miscdev:	specifics to handle "/dev/xyz.etb" entry.
  * @spinlock:	only one at a time pls.
- * @in_use:	synchronise user space access to etb buffer.
+ * @reading:	synchronise user space access to etb buffer.
+ * @mode:	this ETB is being used.
  * @buf:	area of memory where ETB buffer content gets sent.
  * @buffer_depth: size of @buf.
- * @enable:	this ETB is being used.
  * @trigger_cntr: amount of words to store after a trigger.
  */
 struct etb_drvdata {
@@ -84,10 +111,10 @@ struct etb_drvdata {
 	struct coresight_device	*csdev;
 	struct miscdevice	miscdev;
 	spinlock_t		spinlock;
-	atomic_t		in_use;
+	local_t			reading;
+	local_t			mode;
 	u8			*buf;
 	u32			buffer_depth;
-	bool			enable;
 	u32			trigger_cntr;
 };
 
@@ -132,18 +159,31 @@ static void etb_enable_hw(struct etb_drvdata *drvdata)
 	CS_LOCK(drvdata->base);
 }
 
-static int etb_enable(struct coresight_device *csdev)
+static int etb_enable(struct coresight_device *csdev, u32 mode)
 {
-	struct etb_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+	u32 val;
 	unsigned long flags;
+	struct etb_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 
-	pm_runtime_get_sync(drvdata->dev);
+	val = local_cmpxchg(&drvdata->mode,
+			    CS_MODE_DISABLED, mode);
+	/*
+	 * When accessing from Perf, a HW buffer can be handled
+	 * by a single trace entity.  In sysFS mode many tracers
+	 * can be logging to the same HW buffer.
+	 */
+	if (val == CS_MODE_PERF)
+		return -EBUSY;
+
+	/* Nothing to do, the tracer is already enabled. */
+	if (val == CS_MODE_SYSFS)
+		goto out;
 
 	spin_lock_irqsave(&drvdata->spinlock, flags);
 	etb_enable_hw(drvdata);
-	drvdata->enable = true;
 	spin_unlock_irqrestore(&drvdata->spinlock, flags);
 
+out:
 	dev_info(drvdata->dev, "ETB enabled\n");
 	return 0;
 }
@@ -244,17 +284,225 @@ static void etb_disable(struct coresight_device *csdev)
 	spin_lock_irqsave(&drvdata->spinlock, flags);
 	etb_disable_hw(drvdata);
 	etb_dump_hw(drvdata);
-	drvdata->enable = false;
 	spin_unlock_irqrestore(&drvdata->spinlock, flags);
 
-	pm_runtime_put(drvdata->dev);
+	local_set(&drvdata->mode, CS_MODE_DISABLED);
 
 	dev_info(drvdata->dev, "ETB disabled\n");
 }
 
+static void *etb_alloc_buffer(struct coresight_device *csdev, int cpu,
+			      void **pages, int nr_pages, bool overwrite)
+{
+	int node;
+	struct cs_buffers *buf;
+
+	if (cpu == -1)
+		cpu = smp_processor_id();
+	node = cpu_to_node(cpu);
+
+	buf = kzalloc_node(sizeof(struct cs_buffers), GFP_KERNEL, node);
+	if (!buf)
+		return NULL;
+
+	buf->snapshot = overwrite;
+	buf->nr_pages = nr_pages;
+	buf->data_pages = pages;
+
+	return buf;
+}
+
+static void etb_free_buffer(void *config)
+{
+	struct cs_buffers *buf = config;
+
+	kfree(buf);
+}
+
+static int etb_set_buffer(struct coresight_device *csdev,
+			  struct perf_output_handle *handle,
+			  void *sink_config)
+{
+	int ret = 0;
+	unsigned long head;
+	struct cs_buffers *buf = sink_config;
+
+	/* wrap head around to the amount of space we have */
+	head = handle->head & ((buf->nr_pages << PAGE_SHIFT) - 1);
+
+	/* find the page to write to */
+	buf->cur = head / PAGE_SIZE;
+
+	/* and offset within that page */
+	buf->offset = head % PAGE_SIZE;
+
+	local_set(&buf->data_size, 0);
+
+	return ret;
+}
+
+static unsigned long etb_reset_buffer(struct coresight_device *csdev,
+				      struct perf_output_handle *handle,
+				      void *sink_config, bool *lost)
+{
+	unsigned long size = 0;
+	struct cs_buffers *buf = sink_config;
+
+	if (buf) {
+		/*
+		 * In snapshot mode ->data_size holds the new address of the
+		 * ring buffer's head.  The size itself is the whole address
+		 * range since we want the latest information.
+		 */
+		if (buf->snapshot)
+			handle->head = local_xchg(&buf->data_size,
+						  buf->nr_pages << PAGE_SHIFT);
+
+		/*
+		 * Tell the tracer PMU how much we got in this run and if
+		 * something went wrong along the way.  Nobody else can use
+		 * this cs_buffers instance until we are done.  As such
+		 * resetting parameters here and squaring off with the ring
+		 * buffer API in the tracer PMU is fine.
+		 */
+		*lost = !!local_xchg(&buf->lost, 0);
+		size = local_xchg(&buf->data_size, 0);
+	}
+
+	return size;
+}
+
+static void etb_update_buffer(struct coresight_device *csdev,
+			      struct perf_output_handle *handle,
+			      void *sink_config)
+{
+	int i, cur;
+	u8 *buf_ptr;
+	u32 read_ptr, write_ptr, capacity;
+	u32 status, read_data, to_read;
+	unsigned long offset;
+	struct cs_buffers *buf = sink_config;
+	struct etb_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+
+	if (!buf)
+		return;
+
+	capacity = drvdata->buffer_depth * ETB_FRAME_SIZE_WORDS;
+
+	CS_UNLOCK(drvdata->base);
+	etb_disable_hw(drvdata);
+
+	/* unit is in words, not bytes */
+	read_ptr = readl_relaxed(drvdata->base + ETB_RAM_READ_POINTER);
+	write_ptr = readl_relaxed(drvdata->base + ETB_RAM_WRITE_POINTER);
+
+	/*
+	 * Entries should be aligned to the frame size.  If they are not
+	 * go back to the last alignement point to give decoding tools a
+	 * chance to fix things.
+	 */
+	if (write_ptr % ETB_FRAME_SIZE_WORDS) {
+		dev_err(drvdata->dev,
+			"write_ptr: %lu not aligned to formatter frame size\n",
+			(unsigned long)write_ptr);
+
+		write_ptr &= ~(ETB_FRAME_SIZE_WORDS - 1);
+		local_inc(&buf->lost);
+	}
+
+	/*
+	 * Get a hold of the status register and see if a wrap around
+	 * has occurred.  If so adjust things accordingly.  Otherwise
+	 * start at the beginning and go until the write pointer has
+	 * been reached.
+	 */
+	status = readl_relaxed(drvdata->base + ETB_STATUS_REG);
+	if (status & ETB_STATUS_RAM_FULL) {
+		local_inc(&buf->lost);
+		to_read = capacity;
+		read_ptr = write_ptr;
+	} else {
+		to_read = CIRC_CNT(write_ptr, read_ptr, drvdata->buffer_depth);
+		to_read *= ETB_FRAME_SIZE_WORDS;
+	}
+
+	/*
+	 * Make sure we don't overwrite data that hasn't been consumed yet.
+	 * It is entirely possible that the HW buffer has more data than the
+	 * ring buffer can currently handle.  If so adjust the start address
+	 * to take only the last traces.
+	 *
+	 * In snapshot mode we are looking to get the latest traces only and as
+	 * such, we don't care about not overwriting data that hasn't been
+	 * processed by user space.
+	 */
+	if (!buf->snapshot && to_read > handle->size) {
+		u32 mask = ~(ETB_FRAME_SIZE_WORDS - 1);
+
+		/* The new read pointer must be frame size aligned */
+		to_read -= handle->size & mask;
+		/*
+		 * Move the RAM read pointer up, keeping in mind that
+		 * everything is in frame size units.
+		 */
+		read_ptr = (write_ptr + drvdata->buffer_depth) -
+					to_read / ETB_FRAME_SIZE_WORDS;
+		/* Wrap around if need be*/
+		read_ptr &= ~(drvdata->buffer_depth - 1);
+		/* let the decoder know we've skipped ahead */
+		local_inc(&buf->lost);
+	}
+
+	/* finally tell HW where we want to start reading from */
+	writel_relaxed(read_ptr, drvdata->base + ETB_RAM_READ_POINTER);
+
+	cur = buf->cur;
+	offset = buf->offset;
+	for (i = 0; i < to_read; i += 4) {
+		buf_ptr = buf->data_pages[cur] + offset;
+		read_data = readl_relaxed(drvdata->base +
+					  ETB_RAM_READ_DATA_REG);
+		*buf_ptr++ = read_data >> 0;
+		*buf_ptr++ = read_data >> 8;
+		*buf_ptr++ = read_data >> 16;
+		*buf_ptr++ = read_data >> 24;
+
+		offset += 4;
+		if (offset >= PAGE_SIZE) {
+			offset = 0;
+			cur++;
+			/* wrap around at the end of the buffer */
+			cur &= buf->nr_pages - 1;
+		}
+	}
+
+	/* reset ETB buffer for next run */
+	writel_relaxed(0x0, drvdata->base + ETB_RAM_READ_POINTER);
+	writel_relaxed(0x0, drvdata->base + ETB_RAM_WRITE_POINTER);
+
+	/*
+	 * In snapshot mode all we have to do is communicate to
+	 * perf_aux_output_end() the address of the current head.  In full
+	 * trace mode the same function expects a size to move rb->aux_head
+	 * forward.
+	 */
+	if (buf->snapshot)
+		local_set(&buf->data_size, (cur * PAGE_SIZE) + offset);
+	else
+		local_add(to_read, &buf->data_size);
+
+	etb_enable_hw(drvdata);
+	CS_LOCK(drvdata->base);
+}
+
 static const struct coresight_ops_sink etb_sink_ops = {
 	.enable		= etb_enable,
 	.disable	= etb_disable,
+	.alloc_buffer	= etb_alloc_buffer,
+	.free_buffer	= etb_free_buffer,
+	.set_buffer	= etb_set_buffer,
+	.reset_buffer	= etb_reset_buffer,
+	.update_buffer	= etb_update_buffer,
 };
 
 static const struct coresight_ops etb_cs_ops = {
@@ -266,7 +514,7 @@ static void etb_dump(struct etb_drvdata *drvdata)
 	unsigned long flags;
 
 	spin_lock_irqsave(&drvdata->spinlock, flags);
-	if (drvdata->enable) {
+	if (local_read(&drvdata->mode) == CS_MODE_SYSFS) {
 		etb_disable_hw(drvdata);
 		etb_dump_hw(drvdata);
 		etb_enable_hw(drvdata);
@@ -281,7 +529,7 @@ static int etb_open(struct inode *inode, struct file *file)
 	struct etb_drvdata *drvdata = container_of(file->private_data,
 						   struct etb_drvdata, miscdev);
 
-	if (atomic_cmpxchg(&drvdata->in_use, 0, 1))
+	if (local_cmpxchg(&drvdata->reading, 0, 1))
 		return -EBUSY;
 
 	dev_dbg(drvdata->dev, "%s: successfully opened\n", __func__);
@@ -317,7 +565,7 @@ static int etb_release(struct inode *inode, struct file *file)
 {
 	struct etb_drvdata *drvdata = container_of(file->private_data,
 						   struct etb_drvdata, miscdev);
-	atomic_set(&drvdata->in_use, 0);
+	local_set(&drvdata->reading, 0);
 
 	dev_dbg(drvdata->dev, "%s: released\n", __func__);
 	return 0;
@@ -489,15 +737,6 @@ err_misc_register:
 	return ret;
 }
 
-static int etb_remove(struct amba_device *adev)
-{
-	struct etb_drvdata *drvdata = amba_get_drvdata(adev);
-
-	misc_deregister(&drvdata->miscdev);
-	coresight_unregister(drvdata->csdev);
-	return 0;
-}
-
 #ifdef CONFIG_PM
 static int etb_runtime_suspend(struct device *dev)
 {
@@ -537,14 +776,10 @@ static struct amba_driver etb_driver = {
 		.name	= "coresight-etb10",
 		.owner	= THIS_MODULE,
 		.pm	= &etb_dev_pm_ops,
+		.suppress_bind_attrs = true,
 
 	},
 	.probe		= etb_probe,
-	.remove		= etb_remove,
 	.id_table	= etb_ids,
 };
-
-module_amba_driver(etb_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("CoreSight Embedded Trace Buffer driver");
+builtin_amba_driver(etb_driver);
diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c
new file mode 100644
index 0000000..36153a7
--- /dev/null
+++ b/drivers/hwtracing/coresight/coresight-etm-perf.c
@@ -0,0 +1,393 @@
+/*
+ * Copyright(C) 2015 Linaro Limited. All rights reserved.
+ * Author: Mathieu Poirier <mathieu.poirier@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/coresight.h>
+#include <linux/coresight-pmu.h>
+#include <linux/cpumask.h>
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/perf_event.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
+#include "coresight-priv.h"
+
+static struct pmu etm_pmu;
+static bool etm_perf_up;
+
+/**
+ * struct etm_event_data - Coresight specifics associated to an event
+ * @work:		Handle to free allocated memory outside IRQ context.
+ * @mask:		Hold the CPU(s) this event was set for.
+ * @snk_config:		The sink configuration.
+ * @path:		An array of path, each slot for one CPU.
+ */
+struct etm_event_data {
+	struct work_struct work;
+	cpumask_t mask;
+	void *snk_config;
+	struct list_head **path;
+};
+
+static DEFINE_PER_CPU(struct perf_output_handle, ctx_handle);
+static DEFINE_PER_CPU(struct coresight_device *, csdev_src);
+
+/* ETMv3.5/PTM's ETMCR is 'config' */
+PMU_FORMAT_ATTR(cycacc,		"config:" __stringify(ETM_OPT_CYCACC));
+PMU_FORMAT_ATTR(timestamp,	"config:" __stringify(ETM_OPT_TS));
+
+static struct attribute *etm_config_formats_attr[] = {
+	&format_attr_cycacc.attr,
+	&format_attr_timestamp.attr,
+	NULL,
+};
+
+static struct attribute_group etm_pmu_format_group = {
+	.name   = "format",
+	.attrs  = etm_config_formats_attr,
+};
+
+static const struct attribute_group *etm_pmu_attr_groups[] = {
+	&etm_pmu_format_group,
+	NULL,
+};
+
+static void etm_event_read(struct perf_event *event) {}
+
+static int etm_event_init(struct perf_event *event)
+{
+	if (event->attr.type != etm_pmu.type)
+		return -ENOENT;
+
+	return 0;
+}
+
+static void free_event_data(struct work_struct *work)
+{
+	int cpu;
+	cpumask_t *mask;
+	struct etm_event_data *event_data;
+	struct coresight_device *sink;
+
+	event_data = container_of(work, struct etm_event_data, work);
+	mask = &event_data->mask;
+	/*
+	 * First deal with the sink configuration.  See comment in
+	 * etm_setup_aux() about why we take the first available path.
+	 */
+	if (event_data->snk_config) {
+		cpu = cpumask_first(mask);
+		sink = coresight_get_sink(event_data->path[cpu]);
+		if (sink_ops(sink)->free_buffer)
+			sink_ops(sink)->free_buffer(event_data->snk_config);
+	}
+
+	for_each_cpu(cpu, mask) {
+		if (event_data->path[cpu])
+			coresight_release_path(event_data->path[cpu]);
+	}
+
+	kfree(event_data->path);
+	kfree(event_data);
+}
+
+static void *alloc_event_data(int cpu)
+{
+	int size;
+	cpumask_t *mask;
+	struct etm_event_data *event_data;
+
+	/* First get memory for the session's data */
+	event_data = kzalloc(sizeof(struct etm_event_data), GFP_KERNEL);
+	if (!event_data)
+		return NULL;
+
+	/* Make sure nothing disappears under us */
+	get_online_cpus();
+	size = num_online_cpus();
+
+	mask = &event_data->mask;
+	if (cpu != -1)
+		cpumask_set_cpu(cpu, mask);
+	else
+		cpumask_copy(mask, cpu_online_mask);
+	put_online_cpus();
+
+	/*
+	 * Each CPU has a single path between source and destination.  As such
+	 * allocate an array using CPU numbers as indexes.  That way a path
+	 * for any CPU can easily be accessed at any given time.  We proceed
+	 * the same way for sessions involving a single CPU.  The cost of
+	 * unused memory when dealing with single CPU trace scenarios is small
+	 * compared to the cost of searching through an optimized array.
+	 */
+	event_data->path = kcalloc(size,
+				   sizeof(struct list_head *), GFP_KERNEL);
+	if (!event_data->path) {
+		kfree(event_data);
+		return NULL;
+	}
+
+	return event_data;
+}
+
+static void etm_free_aux(void *data)
+{
+	struct etm_event_data *event_data = data;
+
+	schedule_work(&event_data->work);
+}
+
+static void *etm_setup_aux(int event_cpu, void **pages,
+			   int nr_pages, bool overwrite)
+{
+	int cpu;
+	cpumask_t *mask;
+	struct coresight_device *sink;
+	struct etm_event_data *event_data = NULL;
+
+	event_data = alloc_event_data(event_cpu);
+	if (!event_data)
+		return NULL;
+
+	INIT_WORK(&event_data->work, free_event_data);
+
+	mask = &event_data->mask;
+
+	/* Setup the path for each CPU in a trace session */
+	for_each_cpu(cpu, mask) {
+		struct coresight_device *csdev;
+
+		csdev = per_cpu(csdev_src, cpu);
+		if (!csdev)
+			goto err;
+
+		/*
+		 * Building a path doesn't enable it, it simply builds a
+		 * list of devices from source to sink that can be
+		 * referenced later when the path is actually needed.
+		 */
+		event_data->path[cpu] = coresight_build_path(csdev);
+		if (!event_data->path[cpu])
+			goto err;
+	}
+
+	/*
+	 * In theory nothing prevent tracers in a trace session from being
+	 * associated with different sinks, nor having a sink per tracer.  But
+	 * until we have HW with this kind of topology and a way to convey
+	 * sink assignement from the perf cmd line we need to assume tracers
+	 * in a trace session are using the same sink.  Therefore pick the sink
+	 * found at the end of the first available path.
+	 */
+	cpu = cpumask_first(mask);
+	/* Grab the sink at the end of the path */
+	sink = coresight_get_sink(event_data->path[cpu]);
+	if (!sink)
+		goto err;
+
+	if (!sink_ops(sink)->alloc_buffer)
+		goto err;
+
+	/* Get the AUX specific data from the sink buffer */
+	event_data->snk_config =
+			sink_ops(sink)->alloc_buffer(sink, cpu, pages,
+						     nr_pages, overwrite);
+	if (!event_data->snk_config)
+		goto err;
+
+out:
+	return event_data;
+
+err:
+	etm_free_aux(event_data);
+	event_data = NULL;
+	goto out;
+}
+
+static void etm_event_start(struct perf_event *event, int flags)
+{
+	int cpu = smp_processor_id();
+	struct etm_event_data *event_data;
+	struct perf_output_handle *handle = this_cpu_ptr(&ctx_handle);
+	struct coresight_device *sink, *csdev = per_cpu(csdev_src, cpu);
+
+	if (!csdev)
+		goto fail;
+
+	/*
+	 * Deal with the ring buffer API and get a handle on the
+	 * session's information.
+	 */
+	event_data = perf_aux_output_begin(handle, event);
+	if (!event_data)
+		goto fail;
+
+	/* We need a sink, no need to continue without one */
+	sink = coresight_get_sink(event_data->path[cpu]);
+	if (WARN_ON_ONCE(!sink || !sink_ops(sink)->set_buffer))
+		goto fail_end_stop;
+
+	/* Configure the sink */
+	if (sink_ops(sink)->set_buffer(sink, handle,
+				       event_data->snk_config))
+		goto fail_end_stop;
+
+	/* Nothing will happen without a path */
+	if (coresight_enable_path(event_data->path[cpu], CS_MODE_PERF))
+		goto fail_end_stop;
+
+	/* Tell the perf core the event is alive */
+	event->hw.state = 0;
+
+	/* Finally enable the tracer */
+	if (source_ops(csdev)->enable(csdev, &event->attr, CS_MODE_PERF))
+		goto fail_end_stop;
+
+out:
+	return;
+
+fail_end_stop:
+	perf_aux_output_end(handle, 0, true);
+fail:
+	event->hw.state = PERF_HES_STOPPED;
+	goto out;
+}
+
+static void etm_event_stop(struct perf_event *event, int mode)
+{
+	bool lost;
+	int cpu = smp_processor_id();
+	unsigned long size;
+	struct coresight_device *sink, *csdev = per_cpu(csdev_src, cpu);
+	struct perf_output_handle *handle = this_cpu_ptr(&ctx_handle);
+	struct etm_event_data *event_data = perf_get_aux(handle);
+
+	if (event->hw.state == PERF_HES_STOPPED)
+		return;
+
+	if (!csdev)
+		return;
+
+	sink = coresight_get_sink(event_data->path[cpu]);
+	if (!sink)
+		return;
+
+	/* stop tracer */
+	source_ops(csdev)->disable(csdev);
+
+	/* tell the core */
+	event->hw.state = PERF_HES_STOPPED;
+
+	if (mode & PERF_EF_UPDATE) {
+		if (WARN_ON_ONCE(handle->event != event))
+			return;
+
+		/* update trace information */
+		if (!sink_ops(sink)->update_buffer)
+			return;
+
+		sink_ops(sink)->update_buffer(sink, handle,
+					      event_data->snk_config);
+
+		if (!sink_ops(sink)->reset_buffer)
+			return;
+
+		size = sink_ops(sink)->reset_buffer(sink, handle,
+						    event_data->snk_config,
+						    &lost);
+
+		perf_aux_output_end(handle, size, lost);
+	}
+
+	/* Disabling the path make its elements available to other sessions */
+	coresight_disable_path(event_data->path[cpu]);
+}
+
+static int etm_event_add(struct perf_event *event, int mode)
+{
+	int ret = 0;
+	struct hw_perf_event *hwc = &event->hw;
+
+	if (mode & PERF_EF_START) {
+		etm_event_start(event, 0);
+		if (hwc->state & PERF_HES_STOPPED)
+			ret = -EINVAL;
+	} else {
+		hwc->state = PERF_HES_STOPPED;
+	}
+
+	return ret;
+}
+
+static void etm_event_del(struct perf_event *event, int mode)
+{
+	etm_event_stop(event, PERF_EF_UPDATE);
+}
+
+int etm_perf_symlink(struct coresight_device *csdev, bool link)
+{
+	char entry[sizeof("cpu9999999")];
+	int ret = 0, cpu = source_ops(csdev)->cpu_id(csdev);
+	struct device *pmu_dev = etm_pmu.dev;
+	struct device *cs_dev = &csdev->dev;
+
+	sprintf(entry, "cpu%d", cpu);
+
+	if (!etm_perf_up)
+		return -EPROBE_DEFER;
+
+	if (link) {
+		ret = sysfs_create_link(&pmu_dev->kobj, &cs_dev->kobj, entry);
+		if (ret)
+			return ret;
+		per_cpu(csdev_src, cpu) = csdev;
+	} else {
+		sysfs_remove_link(&pmu_dev->kobj, entry);
+		per_cpu(csdev_src, cpu) = NULL;
+	}
+
+	return 0;
+}
+
+static int __init etm_perf_init(void)
+{
+	int ret;
+
+	etm_pmu.capabilities	= PERF_PMU_CAP_EXCLUSIVE;
+
+	etm_pmu.attr_groups	= etm_pmu_attr_groups;
+	etm_pmu.task_ctx_nr	= perf_sw_context;
+	etm_pmu.read		= etm_event_read;
+	etm_pmu.event_init	= etm_event_init;
+	etm_pmu.setup_aux	= etm_setup_aux;
+	etm_pmu.free_aux	= etm_free_aux;
+	etm_pmu.start		= etm_event_start;
+	etm_pmu.stop		= etm_event_stop;
+	etm_pmu.add		= etm_event_add;
+	etm_pmu.del		= etm_event_del;
+
+	ret = perf_pmu_register(&etm_pmu, CORESIGHT_ETM_PMU_NAME, -1);
+	if (ret == 0)
+		etm_perf_up = true;
+
+	return ret;
+}
+module_init(etm_perf_init);
diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.h b/drivers/hwtracing/coresight/coresight-etm-perf.h
new file mode 100644
index 0000000..87f5a13
--- /dev/null
+++ b/drivers/hwtracing/coresight/coresight-etm-perf.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright(C) 2015 Linaro Limited. All rights reserved.
+ * Author: Mathieu Poirier <mathieu.poirier@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _CORESIGHT_ETM_PERF_H
+#define _CORESIGHT_ETM_PERF_H
+
+struct coresight_device;
+
+#ifdef CONFIG_CORESIGHT
+int etm_perf_symlink(struct coresight_device *csdev, bool link);
+
+#else
+static inline int etm_perf_symlink(struct coresight_device *csdev, bool link)
+{ return -EINVAL; }
+
+#endif /* CONFIG_CORESIGHT */
+
+#endif
diff --git a/drivers/hwtracing/coresight/coresight-etm.h b/drivers/hwtracing/coresight/coresight-etm.h
index b4481eb..51597cb 100644
--- a/drivers/hwtracing/coresight/coresight-etm.h
+++ b/drivers/hwtracing/coresight/coresight-etm.h
@@ -13,6 +13,7 @@
 #ifndef _CORESIGHT_CORESIGHT_ETM_H
 #define _CORESIGHT_CORESIGHT_ETM_H
 
+#include <asm/local.h>
 #include <linux/spinlock.h>
 #include "coresight-priv.h"
 
@@ -109,7 +110,10 @@
 #define ETM_MODE_STALL		BIT(2)
 #define ETM_MODE_TIMESTAMP	BIT(3)
 #define ETM_MODE_CTXID		BIT(4)
-#define ETM_MODE_ALL		0x1f
+#define ETM_MODE_ALL		(ETM_MODE_EXCLUDE | ETM_MODE_CYCACC | \
+				 ETM_MODE_STALL | ETM_MODE_TIMESTAMP | \
+				 ETM_MODE_CTXID | ETM_MODE_EXCL_KERN | \
+				 ETM_MODE_EXCL_USER)
 
 #define ETM_SQR_MASK		0x3
 #define ETM_TRACEID_MASK	0x3f
@@ -136,35 +140,16 @@
 #define ETM_DEFAULT_EVENT_VAL	(ETM_HARD_WIRE_RES_A	|	\
 				 ETM_ADD_COMP_0		|	\
 				 ETM_EVENT_NOT_A)
+
 /**
- * struct etm_drvdata - specifics associated to an ETM component
- * @base:	memory mapped base address for this component.
- * @dev:	the device entity associated to this component.
- * @atclk:	optional clock for the core parts of the ETM.
- * @csdev:	component vitals needed by the framework.
- * @spinlock:	only one at a time pls.
- * @cpu:	the cpu this component is affined to.
- * @port_size:	port size as reported by ETMCR bit 4-6 and 21.
- * @arch:	ETM/PTM version number.
- * @use_cpu14:	true if management registers need to be accessed via CP14.
- * @enable:	is this ETM/PTM currently tracing.
- * @sticky_enable: true if ETM base configuration has been done.
- * @boot_enable:true if we should start tracing at boot time.
- * @os_unlock:	true if access to management registers is allowed.
- * @nr_addr_cmp:Number of pairs of address comparators as found in ETMCCR.
- * @nr_cntr:	Number of counters as found in ETMCCR bit 13-15.
- * @nr_ext_inp:	Number of external input as found in ETMCCR bit 17-19.
- * @nr_ext_out:	Number of external output as found in ETMCCR bit 20-22.
- * @nr_ctxid_cmp: Number of contextID comparators as found in ETMCCR bit 24-25.
- * @etmccr:	value of register ETMCCR.
- * @etmccer:	value of register ETMCCER.
- * @traceid:	value of the current ID for this component.
+ * struct etm_config - configuration information related to an ETM
  * @mode:	controls various modes supported by this ETM/PTM.
  * @ctrl:	used in conjunction with @mode.
  * @trigger_event: setting for register ETMTRIGGER.
  * @startstop_ctrl: setting for register ETMTSSCR.
  * @enable_event: setting for register ETMTEEVR.
  * @enable_ctrl1: setting for register ETMTECR1.
+ * @enable_ctrl2: setting for register ETMTECR2.
  * @fifofull_level: setting for register ETMFFLR.
  * @addr_idx:	index for the address comparator selection.
  * @addr_val:	value for address comparator register.
@@ -189,36 +174,16 @@
  * @ctxid_mask: mask applicable to all the context IDs.
  * @sync_freq:	Synchronisation frequency.
  * @timestamp_event: Defines an event that requests the insertion
-		     of a timestamp into the trace stream.
+ *		     of a timestamp into the trace stream.
  */
-struct etm_drvdata {
-	void __iomem			*base;
-	struct device			*dev;
-	struct clk			*atclk;
-	struct coresight_device		*csdev;
-	spinlock_t			spinlock;
-	int				cpu;
-	int				port_size;
-	u8				arch;
-	bool				use_cp14;
-	bool				enable;
-	bool				sticky_enable;
-	bool				boot_enable;
-	bool				os_unlock;
-	u8				nr_addr_cmp;
-	u8				nr_cntr;
-	u8				nr_ext_inp;
-	u8				nr_ext_out;
-	u8				nr_ctxid_cmp;
-	u32				etmccr;
-	u32				etmccer;
-	u32				traceid;
+struct etm_config {
 	u32				mode;
 	u32				ctrl;
 	u32				trigger_event;
 	u32				startstop_ctrl;
 	u32				enable_event;
 	u32				enable_ctrl1;
+	u32				enable_ctrl2;
 	u32				fifofull_level;
 	u8				addr_idx;
 	u32				addr_val[ETM_MAX_ADDR_CMP];
@@ -244,6 +209,56 @@ struct etm_drvdata {
 	u32				timestamp_event;
 };
 
+/**
+ * struct etm_drvdata - specifics associated to an ETM component
+ * @base:	memory mapped base address for this component.
+ * @dev:	the device entity associated to this component.
+ * @atclk:	optional clock for the core parts of the ETM.
+ * @csdev:	component vitals needed by the framework.
+ * @spinlock:	only one at a time pls.
+ * @cpu:	the cpu this component is affined to.
+ * @port_size:	port size as reported by ETMCR bit 4-6 and 21.
+ * @arch:	ETM/PTM version number.
+ * @use_cpu14:	true if management registers need to be accessed via CP14.
+ * @mode:	this tracer's mode, i.e sysFS, Perf or disabled.
+ * @sticky_enable: true if ETM base configuration has been done.
+ * @boot_enable:true if we should start tracing at boot time.
+ * @os_unlock:	true if access to management registers is allowed.
+ * @nr_addr_cmp:Number of pairs of address comparators as found in ETMCCR.
+ * @nr_cntr:	Number of counters as found in ETMCCR bit 13-15.
+ * @nr_ext_inp:	Number of external input as found in ETMCCR bit 17-19.
+ * @nr_ext_out:	Number of external output as found in ETMCCR bit 20-22.
+ * @nr_ctxid_cmp: Number of contextID comparators as found in ETMCCR bit 24-25.
+ * @etmccr:	value of register ETMCCR.
+ * @etmccer:	value of register ETMCCER.
+ * @traceid:	value of the current ID for this component.
+ * @config:	structure holding configuration parameters.
+ */
+struct etm_drvdata {
+	void __iomem			*base;
+	struct device			*dev;
+	struct clk			*atclk;
+	struct coresight_device		*csdev;
+	spinlock_t			spinlock;
+	int				cpu;
+	int				port_size;
+	u8				arch;
+	bool				use_cp14;
+	local_t				mode;
+	bool				sticky_enable;
+	bool				boot_enable;
+	bool				os_unlock;
+	u8				nr_addr_cmp;
+	u8				nr_cntr;
+	u8				nr_ext_inp;
+	u8				nr_ext_out;
+	u8				nr_ctxid_cmp;
+	u32				etmccr;
+	u32				etmccer;
+	u32				traceid;
+	struct etm_config		config;
+};
+
 enum etm_addr_type {
 	ETM_ADDR_TYPE_NONE,
 	ETM_ADDR_TYPE_SINGLE,
@@ -251,4 +266,39 @@ enum etm_addr_type {
 	ETM_ADDR_TYPE_START,
 	ETM_ADDR_TYPE_STOP,
 };
+
+static inline void etm_writel(struct etm_drvdata *drvdata,
+			      u32 val, u32 off)
+{
+	if (drvdata->use_cp14) {
+		if (etm_writel_cp14(off, val)) {
+			dev_err(drvdata->dev,
+				"invalid CP14 access to ETM reg: %#x", off);
+		}
+	} else {
+		writel_relaxed(val, drvdata->base + off);
+	}
+}
+
+static inline unsigned int etm_readl(struct etm_drvdata *drvdata, u32 off)
+{
+	u32 val;
+
+	if (drvdata->use_cp14) {
+		if (etm_readl_cp14(off, &val)) {
+			dev_err(drvdata->dev,
+				"invalid CP14 access to ETM reg: %#x", off);
+		}
+	} else {
+		val = readl_relaxed(drvdata->base + off);
+	}
+
+	return val;
+}
+
+extern const struct attribute_group *coresight_etm_groups[];
+int etm_get_trace_id(struct etm_drvdata *drvdata);
+void etm_set_default(struct etm_config *config);
+void etm_config_trace_mode(struct etm_config *config);
+struct etm_config *get_etm_config(struct etm_drvdata *drvdata);
 #endif
diff --git a/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c
new file mode 100644
index 0000000..cbb4046
--- /dev/null
+++ b/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c
@@ -0,0 +1,1272 @@
+/*
+ * Copyright(C) 2015 Linaro Limited. All rights reserved.
+ * Author: Mathieu Poirier <mathieu.poirier@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/pm_runtime.h>
+#include <linux/sysfs.h>
+#include "coresight-etm.h"
+
+static ssize_t nr_addr_cmp_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+	val = drvdata->nr_addr_cmp;
+	return sprintf(buf, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(nr_addr_cmp);
+
+static ssize_t nr_cntr_show(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+	val = drvdata->nr_cntr;
+	return sprintf(buf, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(nr_cntr);
+
+static ssize_t nr_ctxid_cmp_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+	val = drvdata->nr_ctxid_cmp;
+	return sprintf(buf, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(nr_ctxid_cmp);
+
+static ssize_t etmsr_show(struct device *dev,
+			  struct device_attribute *attr, char *buf)
+{
+	unsigned long flags, val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+	pm_runtime_get_sync(drvdata->dev);
+	spin_lock_irqsave(&drvdata->spinlock, flags);
+	CS_UNLOCK(drvdata->base);
+
+	val = etm_readl(drvdata, ETMSR);
+
+	CS_LOCK(drvdata->base);
+	spin_unlock_irqrestore(&drvdata->spinlock, flags);
+	pm_runtime_put(drvdata->dev);
+
+	return sprintf(buf, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(etmsr);
+
+static ssize_t reset_store(struct device *dev,
+			   struct device_attribute *attr,
+			   const char *buf, size_t size)
+{
+	int i, ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	if (val) {
+		spin_lock(&drvdata->spinlock);
+		memset(config, 0, sizeof(struct etm_config));
+		config->mode = ETM_MODE_EXCLUDE;
+		config->trigger_event = ETM_DEFAULT_EVENT_VAL;
+		for (i = 0; i < drvdata->nr_addr_cmp; i++) {
+			config->addr_type[i] = ETM_ADDR_TYPE_NONE;
+		}
+
+		etm_set_default(config);
+		spin_unlock(&drvdata->spinlock);
+	}
+
+	return size;
+}
+static DEVICE_ATTR_WO(reset);
+
+static ssize_t mode_show(struct device *dev,
+			 struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->mode;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t mode_store(struct device *dev,
+			  struct device_attribute *attr,
+			  const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	spin_lock(&drvdata->spinlock);
+	config->mode = val & ETM_MODE_ALL;
+
+	if (config->mode & ETM_MODE_EXCLUDE)
+		config->enable_ctrl1 |= ETMTECR1_INC_EXC;
+	else
+		config->enable_ctrl1 &= ~ETMTECR1_INC_EXC;
+
+	if (config->mode & ETM_MODE_CYCACC)
+		config->ctrl |= ETMCR_CYC_ACC;
+	else
+		config->ctrl &= ~ETMCR_CYC_ACC;
+
+	if (config->mode & ETM_MODE_STALL) {
+		if (!(drvdata->etmccr & ETMCCR_FIFOFULL)) {
+			dev_warn(drvdata->dev, "stall mode not supported\n");
+			ret = -EINVAL;
+			goto err_unlock;
+		}
+		config->ctrl |= ETMCR_STALL_MODE;
+	 } else
+		config->ctrl &= ~ETMCR_STALL_MODE;
+
+	if (config->mode & ETM_MODE_TIMESTAMP) {
+		if (!(drvdata->etmccer & ETMCCER_TIMESTAMP)) {
+			dev_warn(drvdata->dev, "timestamp not supported\n");
+			ret = -EINVAL;
+			goto err_unlock;
+		}
+		config->ctrl |= ETMCR_TIMESTAMP_EN;
+	} else
+		config->ctrl &= ~ETMCR_TIMESTAMP_EN;
+
+	if (config->mode & ETM_MODE_CTXID)
+		config->ctrl |= ETMCR_CTXID_SIZE;
+	else
+		config->ctrl &= ~ETMCR_CTXID_SIZE;
+
+	if (config->mode & (ETM_MODE_EXCL_KERN | ETM_MODE_EXCL_USER))
+		etm_config_trace_mode(config);
+
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+
+err_unlock:
+	spin_unlock(&drvdata->spinlock);
+	return ret;
+}
+static DEVICE_ATTR_RW(mode);
+
+static ssize_t trigger_event_show(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->trigger_event;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t trigger_event_store(struct device *dev,
+				   struct device_attribute *attr,
+				   const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	config->trigger_event = val & ETM_EVENT_MASK;
+
+	return size;
+}
+static DEVICE_ATTR_RW(trigger_event);
+
+static ssize_t enable_event_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->enable_event;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t enable_event_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	config->enable_event = val & ETM_EVENT_MASK;
+
+	return size;
+}
+static DEVICE_ATTR_RW(enable_event);
+
+static ssize_t fifofull_level_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->fifofull_level;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t fifofull_level_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	config->fifofull_level = val;
+
+	return size;
+}
+static DEVICE_ATTR_RW(fifofull_level);
+
+static ssize_t addr_idx_show(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->addr_idx;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t addr_idx_store(struct device *dev,
+			      struct device_attribute *attr,
+			      const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	if (val >= drvdata->nr_addr_cmp)
+		return -EINVAL;
+
+	/*
+	 * Use spinlock to ensure index doesn't change while it gets
+	 * dereferenced multiple times within a spinlock block elsewhere.
+	 */
+	spin_lock(&drvdata->spinlock);
+	config->addr_idx = val;
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(addr_idx);
+
+static ssize_t addr_single_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	u8 idx;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	spin_lock(&drvdata->spinlock);
+	idx = config->addr_idx;
+	if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+	      config->addr_type[idx] == ETM_ADDR_TYPE_SINGLE)) {
+		spin_unlock(&drvdata->spinlock);
+		return -EINVAL;
+	}
+
+	val = config->addr_val[idx];
+	spin_unlock(&drvdata->spinlock);
+
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t addr_single_store(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf, size_t size)
+{
+	u8 idx;
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	spin_lock(&drvdata->spinlock);
+	idx = config->addr_idx;
+	if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+	      config->addr_type[idx] == ETM_ADDR_TYPE_SINGLE)) {
+		spin_unlock(&drvdata->spinlock);
+		return -EINVAL;
+	}
+
+	config->addr_val[idx] = val;
+	config->addr_type[idx] = ETM_ADDR_TYPE_SINGLE;
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(addr_single);
+
+static ssize_t addr_range_show(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	u8 idx;
+	unsigned long val1, val2;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	spin_lock(&drvdata->spinlock);
+	idx = config->addr_idx;
+	if (idx % 2 != 0) {
+		spin_unlock(&drvdata->spinlock);
+		return -EPERM;
+	}
+	if (!((config->addr_type[idx] == ETM_ADDR_TYPE_NONE &&
+	       config->addr_type[idx + 1] == ETM_ADDR_TYPE_NONE) ||
+	      (config->addr_type[idx] == ETM_ADDR_TYPE_RANGE &&
+	       config->addr_type[idx + 1] == ETM_ADDR_TYPE_RANGE))) {
+		spin_unlock(&drvdata->spinlock);
+		return -EPERM;
+	}
+
+	val1 = config->addr_val[idx];
+	val2 = config->addr_val[idx + 1];
+	spin_unlock(&drvdata->spinlock);
+
+	return sprintf(buf, "%#lx %#lx\n", val1, val2);
+}
+
+static ssize_t addr_range_store(struct device *dev,
+			      struct device_attribute *attr,
+			      const char *buf, size_t size)
+{
+	u8 idx;
+	unsigned long val1, val2;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	if (sscanf(buf, "%lx %lx", &val1, &val2) != 2)
+		return -EINVAL;
+	/* Lower address comparator cannot have a higher address value */
+	if (val1 > val2)
+		return -EINVAL;
+
+	spin_lock(&drvdata->spinlock);
+	idx = config->addr_idx;
+	if (idx % 2 != 0) {
+		spin_unlock(&drvdata->spinlock);
+		return -EPERM;
+	}
+	if (!((config->addr_type[idx] == ETM_ADDR_TYPE_NONE &&
+	       config->addr_type[idx + 1] == ETM_ADDR_TYPE_NONE) ||
+	      (config->addr_type[idx] == ETM_ADDR_TYPE_RANGE &&
+	       config->addr_type[idx + 1] == ETM_ADDR_TYPE_RANGE))) {
+		spin_unlock(&drvdata->spinlock);
+		return -EPERM;
+	}
+
+	config->addr_val[idx] = val1;
+	config->addr_type[idx] = ETM_ADDR_TYPE_RANGE;
+	config->addr_val[idx + 1] = val2;
+	config->addr_type[idx + 1] = ETM_ADDR_TYPE_RANGE;
+	config->enable_ctrl1 |= (1 << (idx/2));
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(addr_range);
+
+static ssize_t addr_start_show(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	u8 idx;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	spin_lock(&drvdata->spinlock);
+	idx = config->addr_idx;
+	if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+	      config->addr_type[idx] == ETM_ADDR_TYPE_START)) {
+		spin_unlock(&drvdata->spinlock);
+		return -EPERM;
+	}
+
+	val = config->addr_val[idx];
+	spin_unlock(&drvdata->spinlock);
+
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t addr_start_store(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t size)
+{
+	u8 idx;
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	spin_lock(&drvdata->spinlock);
+	idx = config->addr_idx;
+	if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+	      config->addr_type[idx] == ETM_ADDR_TYPE_START)) {
+		spin_unlock(&drvdata->spinlock);
+		return -EPERM;
+	}
+
+	config->addr_val[idx] = val;
+	config->addr_type[idx] = ETM_ADDR_TYPE_START;
+	config->startstop_ctrl |= (1 << idx);
+	config->enable_ctrl1 |= BIT(25);
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(addr_start);
+
+static ssize_t addr_stop_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	u8 idx;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	spin_lock(&drvdata->spinlock);
+	idx = config->addr_idx;
+	if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+	      config->addr_type[idx] == ETM_ADDR_TYPE_STOP)) {
+		spin_unlock(&drvdata->spinlock);
+		return -EPERM;
+	}
+
+	val = config->addr_val[idx];
+	spin_unlock(&drvdata->spinlock);
+
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t addr_stop_store(struct device *dev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t size)
+{
+	u8 idx;
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	spin_lock(&drvdata->spinlock);
+	idx = config->addr_idx;
+	if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+	      config->addr_type[idx] == ETM_ADDR_TYPE_STOP)) {
+		spin_unlock(&drvdata->spinlock);
+		return -EPERM;
+	}
+
+	config->addr_val[idx] = val;
+	config->addr_type[idx] = ETM_ADDR_TYPE_STOP;
+	config->startstop_ctrl |= (1 << (idx + 16));
+	config->enable_ctrl1 |= ETMTECR1_START_STOP;
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(addr_stop);
+
+static ssize_t addr_acctype_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	spin_lock(&drvdata->spinlock);
+	val = config->addr_acctype[config->addr_idx];
+	spin_unlock(&drvdata->spinlock);
+
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t addr_acctype_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	spin_lock(&drvdata->spinlock);
+	config->addr_acctype[config->addr_idx] = val;
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(addr_acctype);
+
+static ssize_t cntr_idx_show(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->cntr_idx;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t cntr_idx_store(struct device *dev,
+			      struct device_attribute *attr,
+			      const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	if (val >= drvdata->nr_cntr)
+		return -EINVAL;
+	/*
+	 * Use spinlock to ensure index doesn't change while it gets
+	 * dereferenced multiple times within a spinlock block elsewhere.
+	 */
+	spin_lock(&drvdata->spinlock);
+	config->cntr_idx = val;
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(cntr_idx);
+
+static ssize_t cntr_rld_val_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	spin_lock(&drvdata->spinlock);
+	val = config->cntr_rld_val[config->cntr_idx];
+	spin_unlock(&drvdata->spinlock);
+
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t cntr_rld_val_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	spin_lock(&drvdata->spinlock);
+	config->cntr_rld_val[config->cntr_idx] = val;
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(cntr_rld_val);
+
+static ssize_t cntr_event_show(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	spin_lock(&drvdata->spinlock);
+	val = config->cntr_event[config->cntr_idx];
+	spin_unlock(&drvdata->spinlock);
+
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t cntr_event_store(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	spin_lock(&drvdata->spinlock);
+	config->cntr_event[config->cntr_idx] = val & ETM_EVENT_MASK;
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(cntr_event);
+
+static ssize_t cntr_rld_event_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	spin_lock(&drvdata->spinlock);
+	val = config->cntr_rld_event[config->cntr_idx];
+	spin_unlock(&drvdata->spinlock);
+
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t cntr_rld_event_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	spin_lock(&drvdata->spinlock);
+	config->cntr_rld_event[config->cntr_idx] = val & ETM_EVENT_MASK;
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(cntr_rld_event);
+
+static ssize_t cntr_val_show(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	int i, ret = 0;
+	u32 val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	if (!local_read(&drvdata->mode)) {
+		spin_lock(&drvdata->spinlock);
+		for (i = 0; i < drvdata->nr_cntr; i++)
+			ret += sprintf(buf, "counter %d: %x\n",
+				       i, config->cntr_val[i]);
+		spin_unlock(&drvdata->spinlock);
+		return ret;
+	}
+
+	for (i = 0; i < drvdata->nr_cntr; i++) {
+		val = etm_readl(drvdata, ETMCNTVRn(i));
+		ret += sprintf(buf, "counter %d: %x\n", i, val);
+	}
+
+	return ret;
+}
+
+static ssize_t cntr_val_store(struct device *dev,
+			      struct device_attribute *attr,
+			      const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	spin_lock(&drvdata->spinlock);
+	config->cntr_val[config->cntr_idx] = val;
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(cntr_val);
+
+static ssize_t seq_12_event_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->seq_12_event;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_12_event_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	config->seq_12_event = val & ETM_EVENT_MASK;
+	return size;
+}
+static DEVICE_ATTR_RW(seq_12_event);
+
+static ssize_t seq_21_event_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->seq_21_event;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_21_event_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	config->seq_21_event = val & ETM_EVENT_MASK;
+	return size;
+}
+static DEVICE_ATTR_RW(seq_21_event);
+
+static ssize_t seq_23_event_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->seq_23_event;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_23_event_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	config->seq_23_event = val & ETM_EVENT_MASK;
+	return size;
+}
+static DEVICE_ATTR_RW(seq_23_event);
+
+static ssize_t seq_31_event_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->seq_31_event;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_31_event_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	config->seq_31_event = val & ETM_EVENT_MASK;
+	return size;
+}
+static DEVICE_ATTR_RW(seq_31_event);
+
+static ssize_t seq_32_event_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->seq_32_event;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_32_event_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	config->seq_32_event = val & ETM_EVENT_MASK;
+	return size;
+}
+static DEVICE_ATTR_RW(seq_32_event);
+
+static ssize_t seq_13_event_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->seq_13_event;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_13_event_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	config->seq_13_event = val & ETM_EVENT_MASK;
+	return size;
+}
+static DEVICE_ATTR_RW(seq_13_event);
+
+static ssize_t seq_curr_state_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	unsigned long val, flags;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	if (!local_read(&drvdata->mode)) {
+		val = config->seq_curr_state;
+		goto out;
+	}
+
+	pm_runtime_get_sync(drvdata->dev);
+	spin_lock_irqsave(&drvdata->spinlock, flags);
+
+	CS_UNLOCK(drvdata->base);
+	val = (etm_readl(drvdata, ETMSQR) & ETM_SQR_MASK);
+	CS_LOCK(drvdata->base);
+
+	spin_unlock_irqrestore(&drvdata->spinlock, flags);
+	pm_runtime_put(drvdata->dev);
+out:
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_curr_state_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	if (val > ETM_SEQ_STATE_MAX_VAL)
+		return -EINVAL;
+
+	config->seq_curr_state = val;
+
+	return size;
+}
+static DEVICE_ATTR_RW(seq_curr_state);
+
+static ssize_t ctxid_idx_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->ctxid_idx;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t ctxid_idx_store(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	if (val >= drvdata->nr_ctxid_cmp)
+		return -EINVAL;
+
+	/*
+	 * Use spinlock to ensure index doesn't change while it gets
+	 * dereferenced multiple times within a spinlock block elsewhere.
+	 */
+	spin_lock(&drvdata->spinlock);
+	config->ctxid_idx = val;
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(ctxid_idx);
+
+static ssize_t ctxid_pid_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	spin_lock(&drvdata->spinlock);
+	val = config->ctxid_vpid[config->ctxid_idx];
+	spin_unlock(&drvdata->spinlock);
+
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t ctxid_pid_store(struct device *dev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t size)
+{
+	int ret;
+	unsigned long vpid, pid;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &vpid);
+	if (ret)
+		return ret;
+
+	pid = coresight_vpid_to_pid(vpid);
+
+	spin_lock(&drvdata->spinlock);
+	config->ctxid_pid[config->ctxid_idx] = pid;
+	config->ctxid_vpid[config->ctxid_idx] = vpid;
+	spin_unlock(&drvdata->spinlock);
+
+	return size;
+}
+static DEVICE_ATTR_RW(ctxid_pid);
+
+static ssize_t ctxid_mask_show(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->ctxid_mask;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t ctxid_mask_store(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	config->ctxid_mask = val;
+	return size;
+}
+static DEVICE_ATTR_RW(ctxid_mask);
+
+static ssize_t sync_freq_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->sync_freq;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t sync_freq_store(struct device *dev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	config->sync_freq = val & ETM_SYNC_MASK;
+	return size;
+}
+static DEVICE_ATTR_RW(sync_freq);
+
+static ssize_t timestamp_event_show(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	val = config->timestamp_event;
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t timestamp_event_store(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+	struct etm_config *config = &drvdata->config;
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	config->timestamp_event = val & ETM_EVENT_MASK;
+	return size;
+}
+static DEVICE_ATTR_RW(timestamp_event);
+
+static ssize_t cpu_show(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	int val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+	val = drvdata->cpu;
+	return scnprintf(buf, PAGE_SIZE, "%d\n", val);
+
+}
+static DEVICE_ATTR_RO(cpu);
+
+static ssize_t traceid_show(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+	val = etm_get_trace_id(drvdata);
+
+	return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t traceid_store(struct device *dev,
+			     struct device_attribute *attr,
+			     const char *buf, size_t size)
+{
+	int ret;
+	unsigned long val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+	ret = kstrtoul(buf, 16, &val);
+	if (ret)
+		return ret;
+
+	drvdata->traceid = val & ETM_TRACEID_MASK;
+	return size;
+}
+static DEVICE_ATTR_RW(traceid);
+
+static struct attribute *coresight_etm_attrs[] = {
+	&dev_attr_nr_addr_cmp.attr,
+	&dev_attr_nr_cntr.attr,
+	&dev_attr_nr_ctxid_cmp.attr,
+	&dev_attr_etmsr.attr,
+	&dev_attr_reset.attr,
+	&dev_attr_mode.attr,
+	&dev_attr_trigger_event.attr,
+	&dev_attr_enable_event.attr,
+	&dev_attr_fifofull_level.attr,
+	&dev_attr_addr_idx.attr,
+	&dev_attr_addr_single.attr,
+	&dev_attr_addr_range.attr,
+	&dev_attr_addr_start.attr,
+	&dev_attr_addr_stop.attr,
+	&dev_attr_addr_acctype.attr,
+	&dev_attr_cntr_idx.attr,
+	&dev_attr_cntr_rld_val.attr,
+	&dev_attr_cntr_event.attr,
+	&dev_attr_cntr_rld_event.attr,
+	&dev_attr_cntr_val.attr,
+	&dev_attr_seq_12_event.attr,
+	&dev_attr_seq_21_event.attr,
+	&dev_attr_seq_23_event.attr,
+	&dev_attr_seq_31_event.attr,
+	&dev_attr_seq_32_event.attr,
+	&dev_attr_seq_13_event.attr,
+	&dev_attr_seq_curr_state.attr,
+	&dev_attr_ctxid_idx.attr,
+	&dev_attr_ctxid_pid.attr,
+	&dev_attr_ctxid_mask.attr,
+	&dev_attr_sync_freq.attr,
+	&dev_attr_timestamp_event.attr,
+	&dev_attr_traceid.attr,
+	&dev_attr_cpu.attr,
+	NULL,
+};
+
+#define coresight_simple_func(name, offset)                             \
+static ssize_t name##_show(struct device *_dev,                         \
+			   struct device_attribute *attr, char *buf)    \
+{                                                                       \
+	struct etm_drvdata *drvdata = dev_get_drvdata(_dev->parent);    \
+	return scnprintf(buf, PAGE_SIZE, "0x%x\n",                      \
+			 readl_relaxed(drvdata->base + offset));        \
+}                                                                       \
+DEVICE_ATTR_RO(name)
+
+coresight_simple_func(etmccr, ETMCCR);
+coresight_simple_func(etmccer, ETMCCER);
+coresight_simple_func(etmscr, ETMSCR);
+coresight_simple_func(etmidr, ETMIDR);
+coresight_simple_func(etmcr, ETMCR);
+coresight_simple_func(etmtraceidr, ETMTRACEIDR);
+coresight_simple_func(etmteevr, ETMTEEVR);
+coresight_simple_func(etmtssvr, ETMTSSCR);
+coresight_simple_func(etmtecr1, ETMTECR1);
+coresight_simple_func(etmtecr2, ETMTECR2);
+
+static struct attribute *coresight_etm_mgmt_attrs[] = {
+	&dev_attr_etmccr.attr,
+	&dev_attr_etmccer.attr,
+	&dev_attr_etmscr.attr,
+	&dev_attr_etmidr.attr,
+	&dev_attr_etmcr.attr,
+	&dev_attr_etmtraceidr.attr,
+	&dev_attr_etmteevr.attr,
+	&dev_attr_etmtssvr.attr,
+	&dev_attr_etmtecr1.attr,
+	&dev_attr_etmtecr2.attr,
+	NULL,
+};
+
+static const struct attribute_group coresight_etm_group = {
+	.attrs = coresight_etm_attrs,
+};
+
+static const struct attribute_group coresight_etm_mgmt_group = {
+	.attrs = coresight_etm_mgmt_attrs,
+	.name = "mgmt",
+};
+
+const struct attribute_group *coresight_etm_groups[] = {
+	&coresight_etm_group,
+	&coresight_etm_mgmt_group,
+	NULL,
+};
diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c
index d630b7e..d83ab82 100644
--- a/drivers/hwtracing/coresight/coresight-etm3x.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x.c
@@ -1,5 +1,7 @@
 /* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
  *
+ * Description: CoreSight Program Flow Trace driver
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
@@ -11,7 +13,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/device.h>
@@ -27,14 +29,21 @@
 #include <linux/cpu.h>
 #include <linux/of.h>
 #include <linux/coresight.h>
+#include <linux/coresight-pmu.h>
 #include <linux/amba/bus.h>
 #include <linux/seq_file.h>
 #include <linux/uaccess.h>
 #include <linux/clk.h>
+#include <linux/perf_event.h>
 #include <asm/sections.h>
 
 #include "coresight-etm.h"
+#include "coresight-etm-perf.h"
 
+/*
+ * Not really modular but using module_param is the easiest way to
+ * remain consistent with existing use cases for now.
+ */
 static int boot_enable;
 module_param_named(boot_enable, boot_enable, int, S_IRUGO);
 
@@ -42,45 +51,16 @@ module_param_named(boot_enable, boot_enable, int, S_IRUGO);
 static int etm_count;
 static struct etm_drvdata *etmdrvdata[NR_CPUS];
 
-static inline void etm_writel(struct etm_drvdata *drvdata,
-			      u32 val, u32 off)
-{
-	if (drvdata->use_cp14) {
-		if (etm_writel_cp14(off, val)) {
-			dev_err(drvdata->dev,
-				"invalid CP14 access to ETM reg: %#x", off);
-		}
-	} else {
-		writel_relaxed(val, drvdata->base + off);
-	}
-}
-
-static inline unsigned int etm_readl(struct etm_drvdata *drvdata, u32 off)
-{
-	u32 val;
-
-	if (drvdata->use_cp14) {
-		if (etm_readl_cp14(off, &val)) {
-			dev_err(drvdata->dev,
-				"invalid CP14 access to ETM reg: %#x", off);
-		}
-	} else {
-		val = readl_relaxed(drvdata->base + off);
-	}
-
-	return val;
-}
-
 /*
  * Memory mapped writes to clear os lock are not supported on some processors
  * and OS lock must be unlocked before any memory mapped access on such
  * processors, otherwise memory mapped reads/writes will be invalid.
  */
-static void etm_os_unlock(void *info)
+static void etm_os_unlock(struct etm_drvdata *drvdata)
 {
-	struct etm_drvdata *drvdata = (struct etm_drvdata *)info;
 	/* Writing any value to ETMOSLAR unlocks the trace registers */
 	etm_writel(drvdata, 0x0, ETMOSLAR);
+	drvdata->os_unlock = true;
 	isb();
 }
 
@@ -215,36 +195,156 @@ static void etm_clr_prog(struct etm_drvdata *drvdata)
 	}
 }
 
-static void etm_set_default(struct etm_drvdata *drvdata)
+void etm_set_default(struct etm_config *config)
 {
 	int i;
 
-	drvdata->trigger_event = ETM_DEFAULT_EVENT_VAL;
-	drvdata->enable_event = ETM_HARD_WIRE_RES_A;
+	if (WARN_ON_ONCE(!config))
+		return;
 
-	drvdata->seq_12_event = ETM_DEFAULT_EVENT_VAL;
-	drvdata->seq_21_event = ETM_DEFAULT_EVENT_VAL;
-	drvdata->seq_23_event = ETM_DEFAULT_EVENT_VAL;
-	drvdata->seq_31_event = ETM_DEFAULT_EVENT_VAL;
-	drvdata->seq_32_event = ETM_DEFAULT_EVENT_VAL;
-	drvdata->seq_13_event = ETM_DEFAULT_EVENT_VAL;
-	drvdata->timestamp_event = ETM_DEFAULT_EVENT_VAL;
+	/*
+	 * Taken verbatim from the TRM:
+	 *
+	 * To trace all memory:
+	 *  set bit [24] in register 0x009, the ETMTECR1, to 1
+	 *  set all other bits in register 0x009, the ETMTECR1, to 0
+	 *  set all bits in register 0x007, the ETMTECR2, to 0
+	 *  set register 0x008, the ETMTEEVR, to 0x6F (TRUE).
+	 */
+	config->enable_ctrl1 = BIT(24);
+	config->enable_ctrl2 = 0x0;
+	config->enable_event = ETM_HARD_WIRE_RES_A;
 
-	for (i = 0; i < drvdata->nr_cntr; i++) {
-		drvdata->cntr_rld_val[i] = 0x0;
-		drvdata->cntr_event[i] = ETM_DEFAULT_EVENT_VAL;
-		drvdata->cntr_rld_event[i] = ETM_DEFAULT_EVENT_VAL;
-		drvdata->cntr_val[i] = 0x0;
+	config->trigger_event = ETM_DEFAULT_EVENT_VAL;
+	config->enable_event = ETM_HARD_WIRE_RES_A;
+
+	config->seq_12_event = ETM_DEFAULT_EVENT_VAL;
+	config->seq_21_event = ETM_DEFAULT_EVENT_VAL;
+	config->seq_23_event = ETM_DEFAULT_EVENT_VAL;
+	config->seq_31_event = ETM_DEFAULT_EVENT_VAL;
+	config->seq_32_event = ETM_DEFAULT_EVENT_VAL;
+	config->seq_13_event = ETM_DEFAULT_EVENT_VAL;
+	config->timestamp_event = ETM_DEFAULT_EVENT_VAL;
+
+	for (i = 0; i < ETM_MAX_CNTR; i++) {
+		config->cntr_rld_val[i] = 0x0;
+		config->cntr_event[i] = ETM_DEFAULT_EVENT_VAL;
+		config->cntr_rld_event[i] = ETM_DEFAULT_EVENT_VAL;
+		config->cntr_val[i] = 0x0;
 	}
 
-	drvdata->seq_curr_state = 0x0;
-	drvdata->ctxid_idx = 0x0;
-	for (i = 0; i < drvdata->nr_ctxid_cmp; i++) {
-		drvdata->ctxid_pid[i] = 0x0;
-		drvdata->ctxid_vpid[i] = 0x0;
+	config->seq_curr_state = 0x0;
+	config->ctxid_idx = 0x0;
+	for (i = 0; i < ETM_MAX_CTXID_CMP; i++) {
+		config->ctxid_pid[i] = 0x0;
+		config->ctxid_vpid[i] = 0x0;
 	}
 
-	drvdata->ctxid_mask = 0x0;
+	config->ctxid_mask = 0x0;
+}
+
+void etm_config_trace_mode(struct etm_config *config)
+{
+	u32 flags, mode;
+
+	mode = config->mode;
+
+	mode &= (ETM_MODE_EXCL_KERN | ETM_MODE_EXCL_USER);
+
+	/* excluding kernel AND user space doesn't make sense */
+	if (mode == (ETM_MODE_EXCL_KERN | ETM_MODE_EXCL_USER))
+		return;
+
+	/* nothing to do if neither flags are set */
+	if (!(mode & ETM_MODE_EXCL_KERN) && !(mode & ETM_MODE_EXCL_USER))
+		return;
+
+	flags = (1 << 0 |	/* instruction execute */
+		 3 << 3 |	/* ARM instruction */
+		 0 << 5 |	/* No data value comparison */
+		 0 << 7 |	/* No exact mach */
+		 0 << 8);	/* Ignore context ID */
+
+	/* No need to worry about single address comparators. */
+	config->enable_ctrl2 = 0x0;
+
+	/* Bit 0 is address range comparator 1 */
+	config->enable_ctrl1 = ETMTECR1_ADDR_COMP_1;
+
+	/*
+	 * On ETMv3.5:
+	 * ETMACTRn[13,11] == Non-secure state comparison control
+	 * ETMACTRn[12,10] == Secure state comparison control
+	 *
+	 * b00 == Match in all modes in this state
+	 * b01 == Do not match in any more in this state
+	 * b10 == Match in all modes excepts user mode in this state
+	 * b11 == Match only in user mode in this state
+	 */
+
+	/* Tracing in secure mode is not supported at this time */
+	flags |= (0 << 12 | 1 << 10);
+
+	if (mode & ETM_MODE_EXCL_USER) {
+		/* exclude user, match all modes except user mode */
+		flags |= (1 << 13 | 0 << 11);
+	} else {
+		/* exclude kernel, match only in user mode */
+		flags |= (1 << 13 | 1 << 11);
+	}
+
+	/*
+	 * The ETMEEVR register is already set to "hard wire A".  As such
+	 * all there is to do is setup an address comparator that spans
+	 * the entire address range and configure the state and mode bits.
+	 */
+	config->addr_val[0] = (u32) 0x0;
+	config->addr_val[1] = (u32) ~0x0;
+	config->addr_acctype[0] = flags;
+	config->addr_acctype[1] = flags;
+	config->addr_type[0] = ETM_ADDR_TYPE_RANGE;
+	config->addr_type[1] = ETM_ADDR_TYPE_RANGE;
+}
+
+#define ETM3X_SUPPORTED_OPTIONS (ETMCR_CYC_ACC | ETMCR_TIMESTAMP_EN)
+
+static int etm_parse_event_config(struct etm_drvdata *drvdata,
+				  struct perf_event_attr *attr)
+{
+	struct etm_config *config = &drvdata->config;
+
+	if (!attr)
+		return -EINVAL;
+
+	/* Clear configuration from previous run */
+	memset(config, 0, sizeof(struct etm_config));
+
+	if (attr->exclude_kernel)
+		config->mode = ETM_MODE_EXCL_KERN;
+
+	if (attr->exclude_user)
+		config->mode = ETM_MODE_EXCL_USER;
+
+	/* Always start from the default config */
+	etm_set_default(config);
+
+	/*
+	 * By default the tracers are configured to trace the whole address
+	 * range.  Narrow the field only if requested by user space.
+	 */
+	if (config->mode)
+		etm_config_trace_mode(config);
+
+	/*
+	 * At this time only cycle accurate and timestamp options are
+	 * available.
+	 */
+	if (attr->config & ~ETM3X_SUPPORTED_OPTIONS)
+		return -EINVAL;
+
+	config->ctrl = attr->config;
+
+	return 0;
 }
 
 static void etm_enable_hw(void *info)
@@ -252,6 +352,7 @@ static void etm_enable_hw(void *info)
 	int i;
 	u32 etmcr;
 	struct etm_drvdata *drvdata = info;
+	struct etm_config *config = &drvdata->config;
 
 	CS_UNLOCK(drvdata->base);
 
@@ -265,65 +366,74 @@ static void etm_enable_hw(void *info)
 	etm_set_prog(drvdata);
 
 	etmcr = etm_readl(drvdata, ETMCR);
-	etmcr &= (ETMCR_PWD_DWN | ETMCR_ETM_PRG);
+	/* Clear setting from a previous run if need be */
+	etmcr &= ~ETM3X_SUPPORTED_OPTIONS;
 	etmcr |= drvdata->port_size;
-	etm_writel(drvdata, drvdata->ctrl | etmcr, ETMCR);
-	etm_writel(drvdata, drvdata->trigger_event, ETMTRIGGER);
-	etm_writel(drvdata, drvdata->startstop_ctrl, ETMTSSCR);
-	etm_writel(drvdata, drvdata->enable_event, ETMTEEVR);
-	etm_writel(drvdata, drvdata->enable_ctrl1, ETMTECR1);
-	etm_writel(drvdata, drvdata->fifofull_level, ETMFFLR);
+	etmcr |= ETMCR_ETM_EN;
+	etm_writel(drvdata, config->ctrl | etmcr, ETMCR);
+	etm_writel(drvdata, config->trigger_event, ETMTRIGGER);
+	etm_writel(drvdata, config->startstop_ctrl, ETMTSSCR);
+	etm_writel(drvdata, config->enable_event, ETMTEEVR);
+	etm_writel(drvdata, config->enable_ctrl1, ETMTECR1);
+	etm_writel(drvdata, config->fifofull_level, ETMFFLR);
 	for (i = 0; i < drvdata->nr_addr_cmp; i++) {
-		etm_writel(drvdata, drvdata->addr_val[i], ETMACVRn(i));
-		etm_writel(drvdata, drvdata->addr_acctype[i], ETMACTRn(i));
+		etm_writel(drvdata, config->addr_val[i], ETMACVRn(i));
+		etm_writel(drvdata, config->addr_acctype[i], ETMACTRn(i));
 	}
 	for (i = 0; i < drvdata->nr_cntr; i++) {
-		etm_writel(drvdata, drvdata->cntr_rld_val[i], ETMCNTRLDVRn(i));
-		etm_writel(drvdata, drvdata->cntr_event[i], ETMCNTENRn(i));
-		etm_writel(drvdata, drvdata->cntr_rld_event[i],
+		etm_writel(drvdata, config->cntr_rld_val[i], ETMCNTRLDVRn(i));
+		etm_writel(drvdata, config->cntr_event[i], ETMCNTENRn(i));
+		etm_writel(drvdata, config->cntr_rld_event[i],
 			   ETMCNTRLDEVRn(i));
-		etm_writel(drvdata, drvdata->cntr_val[i], ETMCNTVRn(i));
-	}
-	etm_writel(drvdata, drvdata->seq_12_event, ETMSQ12EVR);
-	etm_writel(drvdata, drvdata->seq_21_event, ETMSQ21EVR);
-	etm_writel(drvdata, drvdata->seq_23_event, ETMSQ23EVR);
-	etm_writel(drvdata, drvdata->seq_31_event, ETMSQ31EVR);
-	etm_writel(drvdata, drvdata->seq_32_event, ETMSQ32EVR);
-	etm_writel(drvdata, drvdata->seq_13_event, ETMSQ13EVR);
-	etm_writel(drvdata, drvdata->seq_curr_state, ETMSQR);
+		etm_writel(drvdata, config->cntr_val[i], ETMCNTVRn(i));
+	}
+	etm_writel(drvdata, config->seq_12_event, ETMSQ12EVR);
+	etm_writel(drvdata, config->seq_21_event, ETMSQ21EVR);
+	etm_writel(drvdata, config->seq_23_event, ETMSQ23EVR);
+	etm_writel(drvdata, config->seq_31_event, ETMSQ31EVR);
+	etm_writel(drvdata, config->seq_32_event, ETMSQ32EVR);
+	etm_writel(drvdata, config->seq_13_event, ETMSQ13EVR);
+	etm_writel(drvdata, config->seq_curr_state, ETMSQR);
 	for (i = 0; i < drvdata->nr_ext_out; i++)
 		etm_writel(drvdata, ETM_DEFAULT_EVENT_VAL, ETMEXTOUTEVRn(i));
 	for (i = 0; i < drvdata->nr_ctxid_cmp; i++)
-		etm_writel(drvdata, drvdata->ctxid_pid[i], ETMCIDCVRn(i));
-	etm_writel(drvdata, drvdata->ctxid_mask, ETMCIDCMR);
-	etm_writel(drvdata, drvdata->sync_freq, ETMSYNCFR);
+		etm_writel(drvdata, config->ctxid_pid[i], ETMCIDCVRn(i));
+	etm_writel(drvdata, config->ctxid_mask, ETMCIDCMR);
+	etm_writel(drvdata, config->sync_freq, ETMSYNCFR);
 	/* No external input selected */
 	etm_writel(drvdata, 0x0, ETMEXTINSELR);
-	etm_writel(drvdata, drvdata->timestamp_event, ETMTSEVR);
+	etm_writel(drvdata, config->timestamp_event, ETMTSEVR);
 	/* No auxiliary control selected */
 	etm_writel(drvdata, 0x0, ETMAUXCR);
 	etm_writel(drvdata, drvdata->traceid, ETMTRACEIDR);
 	/* No VMID comparator value selected */
 	etm_writel(drvdata, 0x0, ETMVMIDCVR);
 
-	/* Ensures trace output is enabled from this ETM */
-	etm_writel(drvdata, drvdata->ctrl | ETMCR_ETM_EN | etmcr, ETMCR);
-
 	etm_clr_prog(drvdata);
 	CS_LOCK(drvdata->base);
 
 	dev_dbg(drvdata->dev, "cpu: %d enable smp call done\n", drvdata->cpu);
 }
 
-static int etm_trace_id(struct coresight_device *csdev)
+static int etm_cpu_id(struct coresight_device *csdev)
 {
 	struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+
+	return drvdata->cpu;
+}
+
+int etm_get_trace_id(struct etm_drvdata *drvdata)
+{
 	unsigned long flags;
 	int trace_id = -1;
 
-	if (!drvdata->enable)
+	if (!drvdata)
+		goto out;
+
+	if (!local_read(&drvdata->mode))
 		return drvdata->traceid;
-	pm_runtime_get_sync(csdev->dev.parent);
+
+	pm_runtime_get_sync(drvdata->dev);
 
 	spin_lock_irqsave(&drvdata->spinlock, flags);
 
@@ -332,17 +442,41 @@ static int etm_trace_id(struct coresight_device *csdev)
 	CS_LOCK(drvdata->base);
 
 	spin_unlock_irqrestore(&drvdata->spinlock, flags);
-	pm_runtime_put(csdev->dev.parent);
+	pm_runtime_put(drvdata->dev);
 
+out:
 	return trace_id;
+
+}
+
+static int etm_trace_id(struct coresight_device *csdev)
+{
+	struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+
+	return etm_get_trace_id(drvdata);
 }
 
-static int etm_enable(struct coresight_device *csdev)
+static int etm_enable_perf(struct coresight_device *csdev,
+			   struct perf_event_attr *attr)
+{
+	struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+
+	if (WARN_ON_ONCE(drvdata->cpu != smp_processor_id()))
+		return -EINVAL;
+
+	/* Configure the tracer based on the session's specifics */
+	etm_parse_event_config(drvdata, attr);
+	/* And enable it */
+	etm_enable_hw(drvdata);
+
+	return 0;
+}
+
+static int etm_enable_sysfs(struct coresight_device *csdev)
 {
 	struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 	int ret;
 
-	pm_runtime_get_sync(csdev->dev.parent);
 	spin_lock(&drvdata->spinlock);
 
 	/*
@@ -357,16 +491,45 @@ static int etm_enable(struct coresight_device *csdev)
 			goto err;
 	}
 
-	drvdata->enable = true;
 	drvdata->sticky_enable = true;
-
 	spin_unlock(&drvdata->spinlock);
 
 	dev_info(drvdata->dev, "ETM tracing enabled\n");
 	return 0;
+
 err:
 	spin_unlock(&drvdata->spinlock);
-	pm_runtime_put(csdev->dev.parent);
+	return ret;
+}
+
+static int etm_enable(struct coresight_device *csdev,
+		      struct perf_event_attr *attr, u32 mode)
+{
+	int ret;
+	u32 val;
+	struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+
+	val = local_cmpxchg(&drvdata->mode, CS_MODE_DISABLED, mode);
+
+	/* Someone is already using the tracer */
+	if (val)
+		return -EBUSY;
+
+	switch (mode) {
+	case CS_MODE_SYSFS:
+		ret = etm_enable_sysfs(csdev);
+		break;
+	case CS_MODE_PERF:
+		ret = etm_enable_perf(csdev, attr);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	/* The tracer didn't start */
+	if (ret)
+		local_set(&drvdata->mode, CS_MODE_DISABLED);
+
 	return ret;
 }
 
@@ -374,18 +537,16 @@ static void etm_disable_hw(void *info)
 {
 	int i;
 	struct etm_drvdata *drvdata = info;
+	struct etm_config *config = &drvdata->config;
 
 	CS_UNLOCK(drvdata->base);
 	etm_set_prog(drvdata);
 
-	/* Program trace enable to low by using always false event */
-	etm_writel(drvdata, ETM_HARD_WIRE_RES_A | ETM_EVENT_NOT_A, ETMTEEVR);
-
 	/* Read back sequencer and counters for post trace analysis */
-	drvdata->seq_curr_state = (etm_readl(drvdata, ETMSQR) & ETM_SQR_MASK);
+	config->seq_curr_state = (etm_readl(drvdata, ETMSQR) & ETM_SQR_MASK);
 
 	for (i = 0; i < drvdata->nr_cntr; i++)
-		drvdata->cntr_val[i] = etm_readl(drvdata, ETMCNTVRn(i));
+		config->cntr_val[i] = etm_readl(drvdata, ETMCNTVRn(i));
 
 	etm_set_pwrdwn(drvdata);
 	CS_LOCK(drvdata->base);
@@ -393,7 +554,28 @@ static void etm_disable_hw(void *info)
 	dev_dbg(drvdata->dev, "cpu: %d disable smp call done\n", drvdata->cpu);
 }
 
-static void etm_disable(struct coresight_device *csdev)
+static void etm_disable_perf(struct coresight_device *csdev)
+{
+	struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+
+	if (WARN_ON_ONCE(drvdata->cpu != smp_processor_id()))
+		return;
+
+	CS_UNLOCK(drvdata->base);
+
+	/* Setting the prog bit disables tracing immediately */
+	etm_set_prog(drvdata);
+
+	/*
+	 * There is no way to know when the tracer will be used again so
+	 * power down the tracer.
+	 */
+	etm_set_pwrdwn(drvdata);
+
+	CS_LOCK(drvdata->base);
+}
+
+static void etm_disable_sysfs(struct coresight_device *csdev)
 {
 	struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 
@@ -411,1235 +593,52 @@ static void etm_disable(struct coresight_device *csdev)
 	 * ensures that register writes occur when cpu is powered.
 	 */
 	smp_call_function_single(drvdata->cpu, etm_disable_hw, drvdata, 1);
-	drvdata->enable = false;
 
 	spin_unlock(&drvdata->spinlock);
 	put_online_cpus();
-	pm_runtime_put(csdev->dev.parent);
 
 	dev_info(drvdata->dev, "ETM tracing disabled\n");
 }
 
-static const struct coresight_ops_source etm_source_ops = {
-	.trace_id	= etm_trace_id,
-	.enable		= etm_enable,
-	.disable	= etm_disable,
-};
-
-static const struct coresight_ops etm_cs_ops = {
-	.source_ops	= &etm_source_ops,
-};
-
-static ssize_t nr_addr_cmp_show(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->nr_addr_cmp;
-	return sprintf(buf, "%#lx\n", val);
-}
-static DEVICE_ATTR_RO(nr_addr_cmp);
-
-static ssize_t nr_cntr_show(struct device *dev,
-			    struct device_attribute *attr, char *buf)
-{	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->nr_cntr;
-	return sprintf(buf, "%#lx\n", val);
-}
-static DEVICE_ATTR_RO(nr_cntr);
-
-static ssize_t nr_ctxid_cmp_show(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->nr_ctxid_cmp;
-	return sprintf(buf, "%#lx\n", val);
-}
-static DEVICE_ATTR_RO(nr_ctxid_cmp);
-
-static ssize_t etmsr_show(struct device *dev,
-			  struct device_attribute *attr, char *buf)
-{
-	unsigned long flags, val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	pm_runtime_get_sync(drvdata->dev);
-	spin_lock_irqsave(&drvdata->spinlock, flags);
-	CS_UNLOCK(drvdata->base);
-
-	val = etm_readl(drvdata, ETMSR);
-
-	CS_LOCK(drvdata->base);
-	spin_unlock_irqrestore(&drvdata->spinlock, flags);
-	pm_runtime_put(drvdata->dev);
-
-	return sprintf(buf, "%#lx\n", val);
-}
-static DEVICE_ATTR_RO(etmsr);
-
-static ssize_t reset_store(struct device *dev,
-			   struct device_attribute *attr,
-			   const char *buf, size_t size)
-{
-	int i, ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	if (val) {
-		spin_lock(&drvdata->spinlock);
-		drvdata->mode = ETM_MODE_EXCLUDE;
-		drvdata->ctrl = 0x0;
-		drvdata->trigger_event = ETM_DEFAULT_EVENT_VAL;
-		drvdata->startstop_ctrl = 0x0;
-		drvdata->addr_idx = 0x0;
-		for (i = 0; i < drvdata->nr_addr_cmp; i++) {
-			drvdata->addr_val[i] = 0x0;
-			drvdata->addr_acctype[i] = 0x0;
-			drvdata->addr_type[i] = ETM_ADDR_TYPE_NONE;
-		}
-		drvdata->cntr_idx = 0x0;
-
-		etm_set_default(drvdata);
-		spin_unlock(&drvdata->spinlock);
-	}
-
-	return size;
-}
-static DEVICE_ATTR_WO(reset);
-
-static ssize_t mode_show(struct device *dev,
-			 struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->mode;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t mode_store(struct device *dev,
-			  struct device_attribute *attr,
-			  const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	spin_lock(&drvdata->spinlock);
-	drvdata->mode = val & ETM_MODE_ALL;
-
-	if (drvdata->mode & ETM_MODE_EXCLUDE)
-		drvdata->enable_ctrl1 |= ETMTECR1_INC_EXC;
-	else
-		drvdata->enable_ctrl1 &= ~ETMTECR1_INC_EXC;
-
-	if (drvdata->mode & ETM_MODE_CYCACC)
-		drvdata->ctrl |= ETMCR_CYC_ACC;
-	else
-		drvdata->ctrl &= ~ETMCR_CYC_ACC;
-
-	if (drvdata->mode & ETM_MODE_STALL) {
-		if (!(drvdata->etmccr & ETMCCR_FIFOFULL)) {
-			dev_warn(drvdata->dev, "stall mode not supported\n");
-			ret = -EINVAL;
-			goto err_unlock;
-		}
-		drvdata->ctrl |= ETMCR_STALL_MODE;
-	 } else
-		drvdata->ctrl &= ~ETMCR_STALL_MODE;
-
-	if (drvdata->mode & ETM_MODE_TIMESTAMP) {
-		if (!(drvdata->etmccer & ETMCCER_TIMESTAMP)) {
-			dev_warn(drvdata->dev, "timestamp not supported\n");
-			ret = -EINVAL;
-			goto err_unlock;
-		}
-		drvdata->ctrl |= ETMCR_TIMESTAMP_EN;
-	} else
-		drvdata->ctrl &= ~ETMCR_TIMESTAMP_EN;
-
-	if (drvdata->mode & ETM_MODE_CTXID)
-		drvdata->ctrl |= ETMCR_CTXID_SIZE;
-	else
-		drvdata->ctrl &= ~ETMCR_CTXID_SIZE;
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-
-err_unlock:
-	spin_unlock(&drvdata->spinlock);
-	return ret;
-}
-static DEVICE_ATTR_RW(mode);
-
-static ssize_t trigger_event_show(struct device *dev,
-				  struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->trigger_event;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t trigger_event_store(struct device *dev,
-				   struct device_attribute *attr,
-				   const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->trigger_event = val & ETM_EVENT_MASK;
-
-	return size;
-}
-static DEVICE_ATTR_RW(trigger_event);
-
-static ssize_t enable_event_show(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->enable_event;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t enable_event_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->enable_event = val & ETM_EVENT_MASK;
-
-	return size;
-}
-static DEVICE_ATTR_RW(enable_event);
-
-static ssize_t fifofull_level_show(struct device *dev,
-				   struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->fifofull_level;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t fifofull_level_store(struct device *dev,
-				    struct device_attribute *attr,
-				    const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->fifofull_level = val;
-
-	return size;
-}
-static DEVICE_ATTR_RW(fifofull_level);
-
-static ssize_t addr_idx_show(struct device *dev,
-			     struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->addr_idx;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t addr_idx_store(struct device *dev,
-			      struct device_attribute *attr,
-			      const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	if (val >= drvdata->nr_addr_cmp)
-		return -EINVAL;
-
-	/*
-	 * Use spinlock to ensure index doesn't change while it gets
-	 * dereferenced multiple times within a spinlock block elsewhere.
-	 */
-	spin_lock(&drvdata->spinlock);
-	drvdata->addr_idx = val;
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(addr_idx);
-
-static ssize_t addr_single_show(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	u8 idx;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	spin_lock(&drvdata->spinlock);
-	idx = drvdata->addr_idx;
-	if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
-	      drvdata->addr_type[idx] == ETM_ADDR_TYPE_SINGLE)) {
-		spin_unlock(&drvdata->spinlock);
-		return -EINVAL;
-	}
-
-	val = drvdata->addr_val[idx];
-	spin_unlock(&drvdata->spinlock);
-
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t addr_single_store(struct device *dev,
-				 struct device_attribute *attr,
-				 const char *buf, size_t size)
-{
-	u8 idx;
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	spin_lock(&drvdata->spinlock);
-	idx = drvdata->addr_idx;
-	if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
-	      drvdata->addr_type[idx] == ETM_ADDR_TYPE_SINGLE)) {
-		spin_unlock(&drvdata->spinlock);
-		return -EINVAL;
-	}
-
-	drvdata->addr_val[idx] = val;
-	drvdata->addr_type[idx] = ETM_ADDR_TYPE_SINGLE;
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(addr_single);
-
-static ssize_t addr_range_show(struct device *dev,
-			       struct device_attribute *attr, char *buf)
-{
-	u8 idx;
-	unsigned long val1, val2;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	spin_lock(&drvdata->spinlock);
-	idx = drvdata->addr_idx;
-	if (idx % 2 != 0) {
-		spin_unlock(&drvdata->spinlock);
-		return -EPERM;
-	}
-	if (!((drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE &&
-	       drvdata->addr_type[idx + 1] == ETM_ADDR_TYPE_NONE) ||
-	      (drvdata->addr_type[idx] == ETM_ADDR_TYPE_RANGE &&
-	       drvdata->addr_type[idx + 1] == ETM_ADDR_TYPE_RANGE))) {
-		spin_unlock(&drvdata->spinlock);
-		return -EPERM;
-	}
-
-	val1 = drvdata->addr_val[idx];
-	val2 = drvdata->addr_val[idx + 1];
-	spin_unlock(&drvdata->spinlock);
-
-	return sprintf(buf, "%#lx %#lx\n", val1, val2);
-}
-
-static ssize_t addr_range_store(struct device *dev,
-			      struct device_attribute *attr,
-			      const char *buf, size_t size)
-{
-	u8 idx;
-	unsigned long val1, val2;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	if (sscanf(buf, "%lx %lx", &val1, &val2) != 2)
-		return -EINVAL;
-	/* Lower address comparator cannot have a higher address value */
-	if (val1 > val2)
-		return -EINVAL;
-
-	spin_lock(&drvdata->spinlock);
-	idx = drvdata->addr_idx;
-	if (idx % 2 != 0) {
-		spin_unlock(&drvdata->spinlock);
-		return -EPERM;
-	}
-	if (!((drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE &&
-	       drvdata->addr_type[idx + 1] == ETM_ADDR_TYPE_NONE) ||
-	      (drvdata->addr_type[idx] == ETM_ADDR_TYPE_RANGE &&
-	       drvdata->addr_type[idx + 1] == ETM_ADDR_TYPE_RANGE))) {
-		spin_unlock(&drvdata->spinlock);
-		return -EPERM;
-	}
-
-	drvdata->addr_val[idx] = val1;
-	drvdata->addr_type[idx] = ETM_ADDR_TYPE_RANGE;
-	drvdata->addr_val[idx + 1] = val2;
-	drvdata->addr_type[idx + 1] = ETM_ADDR_TYPE_RANGE;
-	drvdata->enable_ctrl1 |= (1 << (idx/2));
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(addr_range);
-
-static ssize_t addr_start_show(struct device *dev,
-			       struct device_attribute *attr, char *buf)
-{
-	u8 idx;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	spin_lock(&drvdata->spinlock);
-	idx = drvdata->addr_idx;
-	if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
-	      drvdata->addr_type[idx] == ETM_ADDR_TYPE_START)) {
-		spin_unlock(&drvdata->spinlock);
-		return -EPERM;
-	}
-
-	val = drvdata->addr_val[idx];
-	spin_unlock(&drvdata->spinlock);
-
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t addr_start_store(struct device *dev,
-				struct device_attribute *attr,
-				const char *buf, size_t size)
-{
-	u8 idx;
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	spin_lock(&drvdata->spinlock);
-	idx = drvdata->addr_idx;
-	if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
-	      drvdata->addr_type[idx] == ETM_ADDR_TYPE_START)) {
-		spin_unlock(&drvdata->spinlock);
-		return -EPERM;
-	}
-
-	drvdata->addr_val[idx] = val;
-	drvdata->addr_type[idx] = ETM_ADDR_TYPE_START;
-	drvdata->startstop_ctrl |= (1 << idx);
-	drvdata->enable_ctrl1 |= BIT(25);
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(addr_start);
-
-static ssize_t addr_stop_show(struct device *dev,
-			      struct device_attribute *attr, char *buf)
-{
-	u8 idx;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	spin_lock(&drvdata->spinlock);
-	idx = drvdata->addr_idx;
-	if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
-	      drvdata->addr_type[idx] == ETM_ADDR_TYPE_STOP)) {
-		spin_unlock(&drvdata->spinlock);
-		return -EPERM;
-	}
-
-	val = drvdata->addr_val[idx];
-	spin_unlock(&drvdata->spinlock);
-
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t addr_stop_store(struct device *dev,
-			       struct device_attribute *attr,
-			       const char *buf, size_t size)
-{
-	u8 idx;
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	spin_lock(&drvdata->spinlock);
-	idx = drvdata->addr_idx;
-	if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
-	      drvdata->addr_type[idx] == ETM_ADDR_TYPE_STOP)) {
-		spin_unlock(&drvdata->spinlock);
-		return -EPERM;
-	}
-
-	drvdata->addr_val[idx] = val;
-	drvdata->addr_type[idx] = ETM_ADDR_TYPE_STOP;
-	drvdata->startstop_ctrl |= (1 << (idx + 16));
-	drvdata->enable_ctrl1 |= ETMTECR1_START_STOP;
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(addr_stop);
-
-static ssize_t addr_acctype_show(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	spin_lock(&drvdata->spinlock);
-	val = drvdata->addr_acctype[drvdata->addr_idx];
-	spin_unlock(&drvdata->spinlock);
-
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t addr_acctype_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	spin_lock(&drvdata->spinlock);
-	drvdata->addr_acctype[drvdata->addr_idx] = val;
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(addr_acctype);
-
-static ssize_t cntr_idx_show(struct device *dev,
-			     struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->cntr_idx;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t cntr_idx_store(struct device *dev,
-			      struct device_attribute *attr,
-			      const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	if (val >= drvdata->nr_cntr)
-		return -EINVAL;
-	/*
-	 * Use spinlock to ensure index doesn't change while it gets
-	 * dereferenced multiple times within a spinlock block elsewhere.
-	 */
-	spin_lock(&drvdata->spinlock);
-	drvdata->cntr_idx = val;
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(cntr_idx);
-
-static ssize_t cntr_rld_val_show(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	spin_lock(&drvdata->spinlock);
-	val = drvdata->cntr_rld_val[drvdata->cntr_idx];
-	spin_unlock(&drvdata->spinlock);
-
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t cntr_rld_val_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	spin_lock(&drvdata->spinlock);
-	drvdata->cntr_rld_val[drvdata->cntr_idx] = val;
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(cntr_rld_val);
-
-static ssize_t cntr_event_show(struct device *dev,
-			       struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	spin_lock(&drvdata->spinlock);
-	val = drvdata->cntr_event[drvdata->cntr_idx];
-	spin_unlock(&drvdata->spinlock);
-
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t cntr_event_store(struct device *dev,
-				struct device_attribute *attr,
-				const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	spin_lock(&drvdata->spinlock);
-	drvdata->cntr_event[drvdata->cntr_idx] = val & ETM_EVENT_MASK;
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(cntr_event);
-
-static ssize_t cntr_rld_event_show(struct device *dev,
-				   struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	spin_lock(&drvdata->spinlock);
-	val = drvdata->cntr_rld_event[drvdata->cntr_idx];
-	spin_unlock(&drvdata->spinlock);
-
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t cntr_rld_event_store(struct device *dev,
-				    struct device_attribute *attr,
-				    const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	spin_lock(&drvdata->spinlock);
-	drvdata->cntr_rld_event[drvdata->cntr_idx] = val & ETM_EVENT_MASK;
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(cntr_rld_event);
-
-static ssize_t cntr_val_show(struct device *dev,
-			     struct device_attribute *attr, char *buf)
-{
-	int i, ret = 0;
-	u32 val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	if (!drvdata->enable) {
-		spin_lock(&drvdata->spinlock);
-		for (i = 0; i < drvdata->nr_cntr; i++)
-			ret += sprintf(buf, "counter %d: %x\n",
-				       i, drvdata->cntr_val[i]);
-		spin_unlock(&drvdata->spinlock);
-		return ret;
-	}
-
-	for (i = 0; i < drvdata->nr_cntr; i++) {
-		val = etm_readl(drvdata, ETMCNTVRn(i));
-		ret += sprintf(buf, "counter %d: %x\n", i, val);
-	}
-
-	return ret;
-}
-
-static ssize_t cntr_val_store(struct device *dev,
-			      struct device_attribute *attr,
-			      const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	spin_lock(&drvdata->spinlock);
-	drvdata->cntr_val[drvdata->cntr_idx] = val;
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(cntr_val);
-
-static ssize_t seq_12_event_show(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->seq_12_event;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t seq_12_event_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->seq_12_event = val & ETM_EVENT_MASK;
-	return size;
-}
-static DEVICE_ATTR_RW(seq_12_event);
-
-static ssize_t seq_21_event_show(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->seq_21_event;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t seq_21_event_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->seq_21_event = val & ETM_EVENT_MASK;
-	return size;
-}
-static DEVICE_ATTR_RW(seq_21_event);
-
-static ssize_t seq_23_event_show(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->seq_23_event;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t seq_23_event_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->seq_23_event = val & ETM_EVENT_MASK;
-	return size;
-}
-static DEVICE_ATTR_RW(seq_23_event);
-
-static ssize_t seq_31_event_show(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->seq_31_event;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t seq_31_event_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->seq_31_event = val & ETM_EVENT_MASK;
-	return size;
-}
-static DEVICE_ATTR_RW(seq_31_event);
-
-static ssize_t seq_32_event_show(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->seq_32_event;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t seq_32_event_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->seq_32_event = val & ETM_EVENT_MASK;
-	return size;
-}
-static DEVICE_ATTR_RW(seq_32_event);
-
-static ssize_t seq_13_event_show(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->seq_13_event;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t seq_13_event_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->seq_13_event = val & ETM_EVENT_MASK;
-	return size;
-}
-static DEVICE_ATTR_RW(seq_13_event);
-
-static ssize_t seq_curr_state_show(struct device *dev,
-				   struct device_attribute *attr, char *buf)
-{
-	unsigned long val, flags;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	if (!drvdata->enable) {
-		val = drvdata->seq_curr_state;
-		goto out;
-	}
-
-	pm_runtime_get_sync(drvdata->dev);
-	spin_lock_irqsave(&drvdata->spinlock, flags);
-
-	CS_UNLOCK(drvdata->base);
-	val = (etm_readl(drvdata, ETMSQR) & ETM_SQR_MASK);
-	CS_LOCK(drvdata->base);
-
-	spin_unlock_irqrestore(&drvdata->spinlock, flags);
-	pm_runtime_put(drvdata->dev);
-out:
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t seq_curr_state_store(struct device *dev,
-				    struct device_attribute *attr,
-				    const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	if (val > ETM_SEQ_STATE_MAX_VAL)
-		return -EINVAL;
-
-	drvdata->seq_curr_state = val;
-
-	return size;
-}
-static DEVICE_ATTR_RW(seq_curr_state);
-
-static ssize_t ctxid_idx_show(struct device *dev,
-			      struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->ctxid_idx;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t ctxid_idx_store(struct device *dev,
-				struct device_attribute *attr,
-				const char *buf, size_t size)
+static void etm_disable(struct coresight_device *csdev)
 {
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	if (val >= drvdata->nr_ctxid_cmp)
-		return -EINVAL;
+	u32 mode;
+	struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 
 	/*
-	 * Use spinlock to ensure index doesn't change while it gets
-	 * dereferenced multiple times within a spinlock block elsewhere.
+	 * For as long as the tracer isn't disabled another entity can't
+	 * change its status.  As such we can read the status here without
+	 * fearing it will change under us.
 	 */
-	spin_lock(&drvdata->spinlock);
-	drvdata->ctxid_idx = val;
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(ctxid_idx);
-
-static ssize_t ctxid_pid_show(struct device *dev,
-			      struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	spin_lock(&drvdata->spinlock);
-	val = drvdata->ctxid_vpid[drvdata->ctxid_idx];
-	spin_unlock(&drvdata->spinlock);
+	mode = local_read(&drvdata->mode);
 
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t ctxid_pid_store(struct device *dev,
-			       struct device_attribute *attr,
-			       const char *buf, size_t size)
-{
-	int ret;
-	unsigned long vpid, pid;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &vpid);
-	if (ret)
-		return ret;
-
-	pid = coresight_vpid_to_pid(vpid);
-
-	spin_lock(&drvdata->spinlock);
-	drvdata->ctxid_pid[drvdata->ctxid_idx] = pid;
-	drvdata->ctxid_vpid[drvdata->ctxid_idx] = vpid;
-	spin_unlock(&drvdata->spinlock);
-
-	return size;
-}
-static DEVICE_ATTR_RW(ctxid_pid);
-
-static ssize_t ctxid_mask_show(struct device *dev,
-			       struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->ctxid_mask;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t ctxid_mask_store(struct device *dev,
-				struct device_attribute *attr,
-				const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->ctxid_mask = val;
-	return size;
-}
-static DEVICE_ATTR_RW(ctxid_mask);
-
-static ssize_t sync_freq_show(struct device *dev,
-			      struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->sync_freq;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t sync_freq_store(struct device *dev,
-			       struct device_attribute *attr,
-			       const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->sync_freq = val & ETM_SYNC_MASK;
-	return size;
-}
-static DEVICE_ATTR_RW(sync_freq);
-
-static ssize_t timestamp_event_show(struct device *dev,
-				    struct device_attribute *attr, char *buf)
-{
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->timestamp_event;
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t timestamp_event_store(struct device *dev,
-				     struct device_attribute *attr,
-				     const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->timestamp_event = val & ETM_EVENT_MASK;
-	return size;
-}
-static DEVICE_ATTR_RW(timestamp_event);
-
-static ssize_t cpu_show(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	int val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	val = drvdata->cpu;
-	return scnprintf(buf, PAGE_SIZE, "%d\n", val);
-
-}
-static DEVICE_ATTR_RO(cpu);
-
-static ssize_t traceid_show(struct device *dev,
-			    struct device_attribute *attr, char *buf)
-{
-	unsigned long val, flags;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	if (!drvdata->enable) {
-		val = drvdata->traceid;
-		goto out;
+	switch (mode) {
+	case CS_MODE_DISABLED:
+		break;
+	case CS_MODE_SYSFS:
+		etm_disable_sysfs(csdev);
+		break;
+	case CS_MODE_PERF:
+		etm_disable_perf(csdev);
+		break;
+	default:
+		WARN_ON_ONCE(mode);
+		return;
 	}
 
-	pm_runtime_get_sync(drvdata->dev);
-	spin_lock_irqsave(&drvdata->spinlock, flags);
-	CS_UNLOCK(drvdata->base);
-
-	val = (etm_readl(drvdata, ETMTRACEIDR) & ETM_TRACEID_MASK);
-
-	CS_LOCK(drvdata->base);
-	spin_unlock_irqrestore(&drvdata->spinlock, flags);
-	pm_runtime_put(drvdata->dev);
-out:
-	return sprintf(buf, "%#lx\n", val);
-}
-
-static ssize_t traceid_store(struct device *dev,
-			     struct device_attribute *attr,
-			     const char *buf, size_t size)
-{
-	int ret;
-	unsigned long val;
-	struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
-	ret = kstrtoul(buf, 16, &val);
-	if (ret)
-		return ret;
-
-	drvdata->traceid = val & ETM_TRACEID_MASK;
-	return size;
+	if (mode)
+		local_set(&drvdata->mode, CS_MODE_DISABLED);
 }
-static DEVICE_ATTR_RW(traceid);
-
-static struct attribute *coresight_etm_attrs[] = {
-	&dev_attr_nr_addr_cmp.attr,
-	&dev_attr_nr_cntr.attr,
-	&dev_attr_nr_ctxid_cmp.attr,
-	&dev_attr_etmsr.attr,
-	&dev_attr_reset.attr,
-	&dev_attr_mode.attr,
-	&dev_attr_trigger_event.attr,
-	&dev_attr_enable_event.attr,
-	&dev_attr_fifofull_level.attr,
-	&dev_attr_addr_idx.attr,
-	&dev_attr_addr_single.attr,
-	&dev_attr_addr_range.attr,
-	&dev_attr_addr_start.attr,
-	&dev_attr_addr_stop.attr,
-	&dev_attr_addr_acctype.attr,
-	&dev_attr_cntr_idx.attr,
-	&dev_attr_cntr_rld_val.attr,
-	&dev_attr_cntr_event.attr,
-	&dev_attr_cntr_rld_event.attr,
-	&dev_attr_cntr_val.attr,
-	&dev_attr_seq_12_event.attr,
-	&dev_attr_seq_21_event.attr,
-	&dev_attr_seq_23_event.attr,
-	&dev_attr_seq_31_event.attr,
-	&dev_attr_seq_32_event.attr,
-	&dev_attr_seq_13_event.attr,
-	&dev_attr_seq_curr_state.attr,
-	&dev_attr_ctxid_idx.attr,
-	&dev_attr_ctxid_pid.attr,
-	&dev_attr_ctxid_mask.attr,
-	&dev_attr_sync_freq.attr,
-	&dev_attr_timestamp_event.attr,
-	&dev_attr_traceid.attr,
-	&dev_attr_cpu.attr,
-	NULL,
-};
-
-#define coresight_simple_func(name, offset)                             \
-static ssize_t name##_show(struct device *_dev,                         \
-			   struct device_attribute *attr, char *buf)    \
-{                                                                       \
-	struct etm_drvdata *drvdata = dev_get_drvdata(_dev->parent);    \
-	return scnprintf(buf, PAGE_SIZE, "0x%x\n",                      \
-			 readl_relaxed(drvdata->base + offset));        \
-}                                                                       \
-DEVICE_ATTR_RO(name)
-
-coresight_simple_func(etmccr, ETMCCR);
-coresight_simple_func(etmccer, ETMCCER);
-coresight_simple_func(etmscr, ETMSCR);
-coresight_simple_func(etmidr, ETMIDR);
-coresight_simple_func(etmcr, ETMCR);
-coresight_simple_func(etmtraceidr, ETMTRACEIDR);
-coresight_simple_func(etmteevr, ETMTEEVR);
-coresight_simple_func(etmtssvr, ETMTSSCR);
-coresight_simple_func(etmtecr1, ETMTECR1);
-coresight_simple_func(etmtecr2, ETMTECR2);
-
-static struct attribute *coresight_etm_mgmt_attrs[] = {
-	&dev_attr_etmccr.attr,
-	&dev_attr_etmccer.attr,
-	&dev_attr_etmscr.attr,
-	&dev_attr_etmidr.attr,
-	&dev_attr_etmcr.attr,
-	&dev_attr_etmtraceidr.attr,
-	&dev_attr_etmteevr.attr,
-	&dev_attr_etmtssvr.attr,
-	&dev_attr_etmtecr1.attr,
-	&dev_attr_etmtecr2.attr,
-	NULL,
-};
 
-static const struct attribute_group coresight_etm_group = {
-	.attrs = coresight_etm_attrs,
-};
-
-
-static const struct attribute_group coresight_etm_mgmt_group = {
-	.attrs = coresight_etm_mgmt_attrs,
-	.name = "mgmt",
+static const struct coresight_ops_source etm_source_ops = {
+	.cpu_id		= etm_cpu_id,
+	.trace_id	= etm_trace_id,
+	.enable		= etm_enable,
+	.disable	= etm_disable,
 };
 
-static const struct attribute_group *coresight_etm_groups[] = {
-	&coresight_etm_group,
-	&coresight_etm_mgmt_group,
-	NULL,
+static const struct coresight_ops etm_cs_ops = {
+	.source_ops	= &etm_source_ops,
 };
 
 static int etm_cpu_callback(struct notifier_block *nfb, unsigned long action,
@@ -1658,7 +657,7 @@ static int etm_cpu_callback(struct notifier_block *nfb, unsigned long action,
 			etmdrvdata[cpu]->os_unlock = true;
 		}
 
-		if (etmdrvdata[cpu]->enable)
+		if (local_read(&etmdrvdata[cpu]->mode))
 			etm_enable_hw(etmdrvdata[cpu]);
 		spin_unlock(&etmdrvdata[cpu]->spinlock);
 		break;
@@ -1671,7 +670,7 @@ static int etm_cpu_callback(struct notifier_block *nfb, unsigned long action,
 
 	case CPU_DYING:
 		spin_lock(&etmdrvdata[cpu]->spinlock);
-		if (etmdrvdata[cpu]->enable)
+		if (local_read(&etmdrvdata[cpu]->mode))
 			etm_disable_hw(etmdrvdata[cpu]);
 		spin_unlock(&etmdrvdata[cpu]->spinlock);
 		break;
@@ -1707,6 +706,9 @@ static void etm_init_arch_data(void *info)
 	u32 etmccr;
 	struct etm_drvdata *drvdata = info;
 
+	/* Make sure all registers are accessible */
+	etm_os_unlock(drvdata);
+
 	CS_UNLOCK(drvdata->base);
 
 	/* First dummy read */
@@ -1743,40 +745,9 @@ static void etm_init_arch_data(void *info)
 	CS_LOCK(drvdata->base);
 }
 
-static void etm_init_default_data(struct etm_drvdata *drvdata)
+static void etm_init_trace_id(struct etm_drvdata *drvdata)
 {
-	/*
-	 * A trace ID of value 0 is invalid, so let's start at some
-	 * random value that fits in 7 bits and will be just as good.
-	 */
-	static int etm3x_traceid = 0x10;
-
-	u32 flags = (1 << 0 | /* instruction execute*/
-		     3 << 3 | /* ARM instruction */
-		     0 << 5 | /* No data value comparison */
-		     0 << 7 | /* No exact mach */
-		     0 << 8 | /* Ignore context ID */
-		     0 << 10); /* Security ignored */
-
-	/*
-	 * Initial configuration only - guarantees sources handled by
-	 * this driver have a unique ID at startup time but not between
-	 * all other types of sources.  For that we lean on the core
-	 * framework.
-	 */
-	drvdata->traceid = etm3x_traceid++;
-	drvdata->ctrl = (ETMCR_CYC_ACC | ETMCR_TIMESTAMP_EN);
-	drvdata->enable_ctrl1 = ETMTECR1_ADDR_COMP_1;
-	if (drvdata->nr_addr_cmp >= 2) {
-		drvdata->addr_val[0] = (u32) _stext;
-		drvdata->addr_val[1] = (u32) _etext;
-		drvdata->addr_acctype[0] = flags;
-		drvdata->addr_acctype[1] = flags;
-		drvdata->addr_type[0] = ETM_ADDR_TYPE_RANGE;
-		drvdata->addr_type[1] = ETM_ADDR_TYPE_RANGE;
-	}
-
-	etm_set_default(drvdata);
+	drvdata->traceid = coresight_get_trace_id(drvdata->cpu);
 }
 
 static int etm_probe(struct amba_device *adev, const struct amba_id *id)
@@ -1831,9 +802,6 @@ static int etm_probe(struct amba_device *adev, const struct amba_id *id)
 	get_online_cpus();
 	etmdrvdata[drvdata->cpu] = drvdata;
 
-	if (!smp_call_function_single(drvdata->cpu, etm_os_unlock, drvdata, 1))
-		drvdata->os_unlock = true;
-
 	if (smp_call_function_single(drvdata->cpu,
 				     etm_init_arch_data,  drvdata, 1))
 		dev_err(dev, "ETM arch init failed\n");
@@ -1847,7 +815,9 @@ static int etm_probe(struct amba_device *adev, const struct amba_id *id)
 		ret = -EINVAL;
 		goto err_arch_supported;
 	}
-	etm_init_default_data(drvdata);
+
+	etm_init_trace_id(drvdata);
+	etm_set_default(&drvdata->config);
 
 	desc->type = CORESIGHT_DEV_TYPE_SOURCE;
 	desc->subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_PROC;
@@ -1861,6 +831,12 @@ static int etm_probe(struct amba_device *adev, const struct amba_id *id)
 		goto err_arch_supported;
 	}
 
+	ret = etm_perf_symlink(drvdata->csdev, true);
+	if (ret) {
+		coresight_unregister(drvdata->csdev);
+		goto err_arch_supported;
+	}
+
 	pm_runtime_put(&adev->dev);
 	dev_info(dev, "%s initialized\n", (char *)id->data);
 
@@ -1877,17 +853,6 @@ err_arch_supported:
 	return ret;
 }
 
-static int etm_remove(struct amba_device *adev)
-{
-	struct etm_drvdata *drvdata = amba_get_drvdata(adev);
-
-	coresight_unregister(drvdata->csdev);
-	if (--etm_count == 0)
-		unregister_hotcpu_notifier(&etm_cpu_notifier);
-
-	return 0;
-}
-
 #ifdef CONFIG_PM
 static int etm_runtime_suspend(struct device *dev)
 {
@@ -1948,13 +913,9 @@ static struct amba_driver etm_driver = {
 		.name	= "coresight-etm3x",
 		.owner	= THIS_MODULE,
 		.pm	= &etm_dev_pm_ops,
+		.suppress_bind_attrs = true,
 	},
 	.probe		= etm_probe,
-	.remove		= etm_remove,
 	.id_table	= etm_ids,
 };
-
-module_amba_driver(etm_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("CoreSight Program Flow Trace driver");
+builtin_amba_driver(etm_driver);
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
index a670764..1c59bd3 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -15,7 +15,6 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/device.h>
-#include <linux/module.h>
 #include <linux/io.h>
 #include <linux/err.h>
 #include <linux/fs.h>
@@ -32,6 +31,7 @@
 #include <linux/seq_file.h>
 #include <linux/uaccess.h>
 #include <linux/pm_runtime.h>
+#include <linux/perf_event.h>
 #include <asm/sections.h>
 
 #include "coresight-etm4x.h"
@@ -63,6 +63,13 @@ static bool etm4_arch_supported(u8 arch)
 	return true;
 }
 
+static int etm4_cpu_id(struct coresight_device *csdev)
+{
+	struct etmv4_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+
+	return drvdata->cpu;
+}
+
 static int etm4_trace_id(struct coresight_device *csdev)
 {
 	struct etmv4_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
@@ -72,7 +79,6 @@ static int etm4_trace_id(struct coresight_device *csdev)
 	if (!drvdata->enable)
 		return drvdata->trcid;
 
-	pm_runtime_get_sync(drvdata->dev);
 	spin_lock_irqsave(&drvdata->spinlock, flags);
 
 	CS_UNLOCK(drvdata->base);
@@ -81,7 +87,6 @@ static int etm4_trace_id(struct coresight_device *csdev)
 	CS_LOCK(drvdata->base);
 
 	spin_unlock_irqrestore(&drvdata->spinlock, flags);
-	pm_runtime_put(drvdata->dev);
 
 	return trace_id;
 }
@@ -182,12 +187,12 @@ static void etm4_enable_hw(void *info)
 	dev_dbg(drvdata->dev, "cpu: %d enable smp call done\n", drvdata->cpu);
 }
 
-static int etm4_enable(struct coresight_device *csdev)
+static int etm4_enable(struct coresight_device *csdev,
+		       struct perf_event_attr *attr, u32 mode)
 {
 	struct etmv4_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 	int ret;
 
-	pm_runtime_get_sync(drvdata->dev);
 	spin_lock(&drvdata->spinlock);
 
 	/*
@@ -207,7 +212,6 @@ static int etm4_enable(struct coresight_device *csdev)
 	return 0;
 err:
 	spin_unlock(&drvdata->spinlock);
-	pm_runtime_put(drvdata->dev);
 	return ret;
 }
 
@@ -256,12 +260,11 @@ static void etm4_disable(struct coresight_device *csdev)
 	spin_unlock(&drvdata->spinlock);
 	put_online_cpus();
 
-	pm_runtime_put(drvdata->dev);
-
 	dev_info(drvdata->dev, "ETM tracing disabled\n");
 }
 
 static const struct coresight_ops_source etm4_source_ops = {
+	.cpu_id		= etm4_cpu_id,
 	.trace_id	= etm4_trace_id,
 	.enable		= etm4_enable,
 	.disable	= etm4_disable,
@@ -2219,7 +2222,7 @@ static ssize_t name##_show(struct device *_dev,				\
 	return scnprintf(buf, PAGE_SIZE, "0x%x\n",			\
 			 readl_relaxed(drvdata->base + offset));	\
 }									\
-DEVICE_ATTR_RO(name)
+static DEVICE_ATTR_RO(name)
 
 coresight_simple_func(trcoslsr, TRCOSLSR);
 coresight_simple_func(trcpdcr, TRCPDCR);
@@ -2684,17 +2687,6 @@ err_coresight_register:
 	return ret;
 }
 
-static int etm4_remove(struct amba_device *adev)
-{
-	struct etmv4_drvdata *drvdata = amba_get_drvdata(adev);
-
-	coresight_unregister(drvdata->csdev);
-	if (--etm4_count == 0)
-		unregister_hotcpu_notifier(&etm4_cpu_notifier);
-
-	return 0;
-}
-
 static struct amba_id etm4_ids[] = {
 	{       /* ETM 4.0 - Qualcomm */
 		.id	= 0x0003b95d,
@@ -2712,10 +2704,9 @@ static struct amba_id etm4_ids[] = {
 static struct amba_driver etm4x_driver = {
 	.drv = {
 		.name   = "coresight-etm4x",
+		.suppress_bind_attrs = true,
 	},
 	.probe		= etm4_probe,
-	.remove		= etm4_remove,
 	.id_table	= etm4_ids,
 };
-
-module_amba_driver(etm4x_driver);
+builtin_amba_driver(etm4x_driver);
diff --git a/drivers/hwtracing/coresight/coresight-funnel.c b/drivers/hwtracing/coresight/coresight-funnel.c
index 2e36bde..0600ca3 100644
--- a/drivers/hwtracing/coresight/coresight-funnel.c
+++ b/drivers/hwtracing/coresight/coresight-funnel.c
@@ -1,5 +1,7 @@
 /* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
  *
+ * Description: CoreSight Funnel driver
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
@@ -11,7 +13,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/device.h>
@@ -69,7 +70,6 @@ static int funnel_enable(struct coresight_device *csdev, int inport,
 {
 	struct funnel_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 
-	pm_runtime_get_sync(drvdata->dev);
 	funnel_enable_hw(drvdata, inport);
 
 	dev_info(drvdata->dev, "FUNNEL inport %d enabled\n", inport);
@@ -95,7 +95,6 @@ static void funnel_disable(struct coresight_device *csdev, int inport,
 	struct funnel_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 
 	funnel_disable_hw(drvdata, inport);
-	pm_runtime_put(drvdata->dev);
 
 	dev_info(drvdata->dev, "FUNNEL inport %d disabled\n", inport);
 }
@@ -226,14 +225,6 @@ static int funnel_probe(struct amba_device *adev, const struct amba_id *id)
 	return 0;
 }
 
-static int funnel_remove(struct amba_device *adev)
-{
-	struct funnel_drvdata *drvdata = amba_get_drvdata(adev);
-
-	coresight_unregister(drvdata->csdev);
-	return 0;
-}
-
 #ifdef CONFIG_PM
 static int funnel_runtime_suspend(struct device *dev)
 {
@@ -273,13 +264,9 @@ static struct amba_driver funnel_driver = {
 		.name	= "coresight-funnel",
 		.owner	= THIS_MODULE,
 		.pm	= &funnel_dev_pm_ops,
+		.suppress_bind_attrs = true,
 	},
 	.probe		= funnel_probe,
-	.remove		= funnel_remove,
 	.id_table	= funnel_ids,
 };
-
-module_amba_driver(funnel_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("CoreSight Funnel driver");
+builtin_amba_driver(funnel_driver);
diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h
index 62fcd98..333edda 100644
--- a/drivers/hwtracing/coresight/coresight-priv.h
+++ b/drivers/hwtracing/coresight/coresight-priv.h
@@ -34,6 +34,15 @@
 #define TIMEOUT_US		100
 #define BMVAL(val, lsb, msb)	((val & GENMASK(msb, lsb)) >> lsb)
 
+#define ETM_MODE_EXCL_KERN	BIT(30)
+#define ETM_MODE_EXCL_USER	BIT(31)
+
+enum cs_mode {
+	CS_MODE_DISABLED,
+	CS_MODE_SYSFS,
+	CS_MODE_PERF,
+};
+
 static inline void CS_LOCK(void __iomem *addr)
 {
 	do {
@@ -52,6 +61,12 @@ static inline void CS_UNLOCK(void __iomem *addr)
 	} while (0);
 }
 
+void coresight_disable_path(struct list_head *path);
+int coresight_enable_path(struct list_head *path, u32 mode);
+struct coresight_device *coresight_get_sink(struct list_head *path);
+struct list_head *coresight_build_path(struct coresight_device *csdev);
+void coresight_release_path(struct list_head *path);
+
 #ifdef CONFIG_CORESIGHT_SOURCE_ETM3X
 extern int etm_readl_cp14(u32 off, unsigned int *val);
 extern int etm_writel_cp14(u32 off, u32 val);
diff --git a/drivers/hwtracing/coresight/coresight-replicator-qcom.c b/drivers/hwtracing/coresight/coresight-replicator-qcom.c
index 584059e..700f710 100644
--- a/drivers/hwtracing/coresight/coresight-replicator-qcom.c
+++ b/drivers/hwtracing/coresight/coresight-replicator-qcom.c
@@ -15,7 +15,6 @@
 #include <linux/clk.h>
 #include <linux/coresight.h>
 #include <linux/device.h>
-#include <linux/module.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/io.h>
@@ -48,8 +47,6 @@ static int replicator_enable(struct coresight_device *csdev, int inport,
 {
 	struct replicator_state *drvdata = dev_get_drvdata(csdev->dev.parent);
 
-	pm_runtime_get_sync(drvdata->dev);
-
 	CS_UNLOCK(drvdata->base);
 
 	/*
@@ -86,8 +83,6 @@ static void replicator_disable(struct coresight_device *csdev, int inport,
 
 	CS_LOCK(drvdata->base);
 
-	pm_runtime_put(drvdata->dev);
-
 	dev_info(drvdata->dev, "REPLICATOR disabled\n");
 }
 
@@ -156,15 +151,6 @@ static int replicator_probe(struct amba_device *adev, const struct amba_id *id)
 	return 0;
 }
 
-static int replicator_remove(struct amba_device *adev)
-{
-	struct replicator_state *drvdata = amba_get_drvdata(adev);
-
-	pm_runtime_disable(&adev->dev);
-	coresight_unregister(drvdata->csdev);
-	return 0;
-}
-
 #ifdef CONFIG_PM
 static int replicator_runtime_suspend(struct device *dev)
 {
@@ -206,10 +192,9 @@ static struct amba_driver replicator_driver = {
 	.drv = {
 		.name	= "coresight-replicator-qcom",
 		.pm	= &replicator_dev_pm_ops,
+		.suppress_bind_attrs = true,
 	},
 	.probe		= replicator_probe,
-	.remove		= replicator_remove,
 	.id_table	= replicator_ids,
 };
-
-module_amba_driver(replicator_driver);
+builtin_amba_driver(replicator_driver);
diff --git a/drivers/hwtracing/coresight/coresight-replicator.c b/drivers/hwtracing/coresight/coresight-replicator.c
index 963ac19..4299c05 100644
--- a/drivers/hwtracing/coresight/coresight-replicator.c
+++ b/drivers/hwtracing/coresight/coresight-replicator.c
@@ -1,5 +1,7 @@
 /* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
  *
+ * Description: CoreSight Replicator driver
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
@@ -11,7 +13,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/device.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
@@ -41,7 +42,6 @@ static int replicator_enable(struct coresight_device *csdev, int inport,
 {
 	struct replicator_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 
-	pm_runtime_get_sync(drvdata->dev);
 	dev_info(drvdata->dev, "REPLICATOR enabled\n");
 	return 0;
 }
@@ -51,7 +51,6 @@ static void replicator_disable(struct coresight_device *csdev, int inport,
 {
 	struct replicator_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 
-	pm_runtime_put(drvdata->dev);
 	dev_info(drvdata->dev, "REPLICATOR disabled\n");
 }
 
@@ -127,20 +126,6 @@ out_disable_pm:
 	return ret;
 }
 
-static int replicator_remove(struct platform_device *pdev)
-{
-	struct replicator_drvdata *drvdata = platform_get_drvdata(pdev);
-
-	coresight_unregister(drvdata->csdev);
-	pm_runtime_get_sync(&pdev->dev);
-	if (!IS_ERR(drvdata->atclk))
-		clk_disable_unprepare(drvdata->atclk);
-	pm_runtime_put_noidle(&pdev->dev);
-	pm_runtime_disable(&pdev->dev);
-
-	return 0;
-}
-
 #ifdef CONFIG_PM
 static int replicator_runtime_suspend(struct device *dev)
 {
@@ -175,15 +160,11 @@ static const struct of_device_id replicator_match[] = {
 
 static struct platform_driver replicator_driver = {
 	.probe          = replicator_probe,
-	.remove         = replicator_remove,
 	.driver         = {
 		.name   = "coresight-replicator",
 		.of_match_table = replicator_match,
 		.pm	= &replicator_dev_pm_ops,
+		.suppress_bind_attrs = true,
 	},
 };
-
 builtin_platform_driver(replicator_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("CoreSight Replicator driver");
diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracing/coresight/coresight-tmc.c
index a57c7ec..1be191f 100644
--- a/drivers/hwtracing/coresight/coresight-tmc.c
+++ b/drivers/hwtracing/coresight/coresight-tmc.c
@@ -1,5 +1,7 @@
 /* Copyright (c) 2012, The Linux Foundation. All rights reserved.
  *
+ * Description: CoreSight Trace Memory Controller driver
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
@@ -11,7 +13,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/device.h>
@@ -124,7 +125,7 @@ struct tmc_drvdata {
 	bool			reading;
 	char			*buf;
 	dma_addr_t		paddr;
-	void __iomem		*vaddr;
+	void			*vaddr;
 	u32			size;
 	bool			enable;
 	enum tmc_config_type	config_type;
@@ -242,12 +243,9 @@ static int tmc_enable(struct tmc_drvdata *drvdata, enum tmc_mode mode)
 {
 	unsigned long flags;
 
-	pm_runtime_get_sync(drvdata->dev);
-
 	spin_lock_irqsave(&drvdata->spinlock, flags);
 	if (drvdata->reading) {
 		spin_unlock_irqrestore(&drvdata->spinlock, flags);
-		pm_runtime_put(drvdata->dev);
 		return -EBUSY;
 	}
 
@@ -268,7 +266,7 @@ static int tmc_enable(struct tmc_drvdata *drvdata, enum tmc_mode mode)
 	return 0;
 }
 
-static int tmc_enable_sink(struct coresight_device *csdev)
+static int tmc_enable_sink(struct coresight_device *csdev, u32 mode)
 {
 	struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 
@@ -381,8 +379,6 @@ out:
 	drvdata->enable = false;
 	spin_unlock_irqrestore(&drvdata->spinlock, flags);
 
-	pm_runtime_put(drvdata->dev);
-
 	dev_info(drvdata->dev, "TMC disabled\n");
 }
 
@@ -766,23 +762,10 @@ err_misc_register:
 err_devm_kzalloc:
 	if (drvdata->config_type == TMC_CONFIG_TYPE_ETR)
 		dma_free_coherent(dev, drvdata->size,
-				&drvdata->paddr, GFP_KERNEL);
+				drvdata->vaddr, drvdata->paddr);
 	return ret;
 }
 
-static int tmc_remove(struct amba_device *adev)
-{
-	struct tmc_drvdata *drvdata = amba_get_drvdata(adev);
-
-	misc_deregister(&drvdata->miscdev);
-	coresight_unregister(drvdata->csdev);
-	if (drvdata->config_type == TMC_CONFIG_TYPE_ETR)
-		dma_free_coherent(drvdata->dev, drvdata->size,
-				  &drvdata->paddr, GFP_KERNEL);
-
-	return 0;
-}
-
 static struct amba_id tmc_ids[] = {
 	{
 		.id     = 0x0003b961,
@@ -795,13 +778,9 @@ static struct amba_driver tmc_driver = {
 	.drv = {
 		.name   = "coresight-tmc",
 		.owner  = THIS_MODULE,
+		.suppress_bind_attrs = true,
 	},
 	.probe		= tmc_probe,
-	.remove		= tmc_remove,
 	.id_table	= tmc_ids,
 };
-
-module_amba_driver(tmc_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("CoreSight Trace Memory Controller driver");
+builtin_amba_driver(tmc_driver);
diff --git a/drivers/hwtracing/coresight/coresight-tpiu.c b/drivers/hwtracing/coresight/coresight-tpiu.c
index 7214efd..8fb09d9 100644
--- a/drivers/hwtracing/coresight/coresight-tpiu.c
+++ b/drivers/hwtracing/coresight/coresight-tpiu.c
@@ -1,5 +1,7 @@
 /* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
  *
+ * Description: CoreSight Trace Port Interface Unit driver
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
@@ -11,7 +13,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/io.h>
@@ -70,11 +71,10 @@ static void tpiu_enable_hw(struct tpiu_drvdata *drvdata)
 	CS_LOCK(drvdata->base);
 }
 
-static int tpiu_enable(struct coresight_device *csdev)
+static int tpiu_enable(struct coresight_device *csdev, u32 mode)
 {
 	struct tpiu_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 
-	pm_runtime_get_sync(csdev->dev.parent);
 	tpiu_enable_hw(drvdata);
 
 	dev_info(drvdata->dev, "TPIU enabled\n");
@@ -98,7 +98,6 @@ static void tpiu_disable(struct coresight_device *csdev)
 	struct tpiu_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 
 	tpiu_disable_hw(drvdata);
-	pm_runtime_put(csdev->dev.parent);
 
 	dev_info(drvdata->dev, "TPIU disabled\n");
 }
@@ -172,14 +171,6 @@ static int tpiu_probe(struct amba_device *adev, const struct amba_id *id)
 	return 0;
 }
 
-static int tpiu_remove(struct amba_device *adev)
-{
-	struct tpiu_drvdata *drvdata = amba_get_drvdata(adev);
-
-	coresight_unregister(drvdata->csdev);
-	return 0;
-}
-
 #ifdef CONFIG_PM
 static int tpiu_runtime_suspend(struct device *dev)
 {
@@ -223,13 +214,9 @@ static struct amba_driver tpiu_driver = {
 		.name	= "coresight-tpiu",
 		.owner	= THIS_MODULE,
 		.pm	= &tpiu_dev_pm_ops,
+		.suppress_bind_attrs = true,
 	},
 	.probe		= tpiu_probe,
-	.remove		= tpiu_remove,
 	.id_table	= tpiu_ids,
 };
-
-module_amba_driver(tpiu_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("CoreSight Trace Port Interface Unit driver");
+builtin_amba_driver(tpiu_driver);
diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c
index 93738df..2ea5961 100644
--- a/drivers/hwtracing/coresight/coresight.c
+++ b/drivers/hwtracing/coresight/coresight.c
@@ -11,7 +11,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/device.h>
@@ -24,11 +23,28 @@
 #include <linux/coresight.h>
 #include <linux/of_platform.h>
 #include <linux/delay.h>
+#include <linux/pm_runtime.h>
 
 #include "coresight-priv.h"
 
 static DEFINE_MUTEX(coresight_mutex);
 
+/**
+ * struct coresight_node - elements of a path, from source to sink
+ * @csdev:	Address of an element.
+ * @link:	hook to the list.
+ */
+struct coresight_node {
+	struct coresight_device *csdev;
+	struct list_head link;
+};
+
+/*
+ * When operating Coresight drivers from the sysFS interface, only a single
+ * path can exist from a tracer (associated to a CPU) to a sink.
+ */
+static DEFINE_PER_CPU(struct list_head *, sysfs_path);
+
 static int coresight_id_match(struct device *dev, void *data)
 {
 	int trace_id, i_trace_id;
@@ -68,15 +84,12 @@ static int coresight_source_is_unique(struct coresight_device *csdev)
 				 csdev, coresight_id_match);
 }
 
-static int coresight_find_link_inport(struct coresight_device *csdev)
+static int coresight_find_link_inport(struct coresight_device *csdev,
+				      struct coresight_device *parent)
 {
 	int i;
-	struct coresight_device *parent;
 	struct coresight_connection *conn;
 
-	parent = container_of(csdev->path_link.next,
-			      struct coresight_device, path_link);
-
 	for (i = 0; i < parent->nr_outport; i++) {
 		conn = &parent->conns[i];
 		if (conn->child_dev == csdev)
@@ -89,15 +102,12 @@ static int coresight_find_link_inport(struct coresight_device *csdev)
 	return 0;
 }
 
-static int coresight_find_link_outport(struct coresight_device *csdev)
+static int coresight_find_link_outport(struct coresight_device *csdev,
+				       struct coresight_device *child)
 {
 	int i;
-	struct coresight_device *child;
 	struct coresight_connection *conn;
 
-	child = container_of(csdev->path_link.prev,
-			     struct coresight_device, path_link);
-
 	for (i = 0; i < csdev->nr_outport; i++) {
 		conn = &csdev->conns[i];
 		if (conn->child_dev == child)
@@ -110,13 +120,13 @@ static int coresight_find_link_outport(struct coresight_device *csdev)
 	return 0;
 }
 
-static int coresight_enable_sink(struct coresight_device *csdev)
+static int coresight_enable_sink(struct coresight_device *csdev, u32 mode)
 {
 	int ret;
 
 	if (!csdev->enable) {
 		if (sink_ops(csdev)->enable) {
-			ret = sink_ops(csdev)->enable(csdev);
+			ret = sink_ops(csdev)->enable(csdev, mode);
 			if (ret)
 				return ret;
 		}
@@ -138,14 +148,19 @@ static void coresight_disable_sink(struct coresight_device *csdev)
 	}
 }
 
-static int coresight_enable_link(struct coresight_device *csdev)
+static int coresight_enable_link(struct coresight_device *csdev,
+				 struct coresight_device *parent,
+				 struct coresight_device *child)
 {
 	int ret;
 	int link_subtype;
 	int refport, inport, outport;
 
-	inport = coresight_find_link_inport(csdev);
-	outport = coresight_find_link_outport(csdev);
+	if (!parent || !child)
+		return -EINVAL;
+
+	inport = coresight_find_link_inport(csdev, parent);
+	outport = coresight_find_link_outport(csdev, child);
 	link_subtype = csdev->subtype.link_subtype;
 
 	if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_MERG)
@@ -168,14 +183,19 @@ static int coresight_enable_link(struct coresight_device *csdev)
 	return 0;
 }
 
-static void coresight_disable_link(struct coresight_device *csdev)
+static void coresight_disable_link(struct coresight_device *csdev,
+				   struct coresight_device *parent,
+				   struct coresight_device *child)
 {
 	int i, nr_conns;
 	int link_subtype;
 	int refport, inport, outport;
 
-	inport = coresight_find_link_inport(csdev);
-	outport = coresight_find_link_outport(csdev);
+	if (!parent || !child)
+		return;
+
+	inport = coresight_find_link_inport(csdev, parent);
+	outport = coresight_find_link_outport(csdev, child);
 	link_subtype = csdev->subtype.link_subtype;
 
 	if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_MERG) {
@@ -201,7 +221,7 @@ static void coresight_disable_link(struct coresight_device *csdev)
 	csdev->enable = false;
 }
 
-static int coresight_enable_source(struct coresight_device *csdev)
+static int coresight_enable_source(struct coresight_device *csdev, u32 mode)
 {
 	int ret;
 
@@ -213,7 +233,7 @@ static int coresight_enable_source(struct coresight_device *csdev)
 
 	if (!csdev->enable) {
 		if (source_ops(csdev)->enable) {
-			ret = source_ops(csdev)->enable(csdev);
+			ret = source_ops(csdev)->enable(csdev, NULL, mode);
 			if (ret)
 				return ret;
 		}
@@ -235,109 +255,188 @@ static void coresight_disable_source(struct coresight_device *csdev)
 	}
 }
 
-static int coresight_enable_path(struct list_head *path)
+void coresight_disable_path(struct list_head *path)
 {
-	int ret = 0;
-	struct coresight_device *cd;
-
-	/*
-	 * At this point we have a full @path, from source to sink.  The
-	 * sink is the first entry and the source the last one.  Go through
-	 * all the components and enable them one by one.
-	 */
-	list_for_each_entry(cd, path, path_link) {
-		if (cd == list_first_entry(path, struct coresight_device,
-					   path_link)) {
-			ret = coresight_enable_sink(cd);
-		} else if (list_is_last(&cd->path_link, path)) {
-			/*
-			 * Don't enable the source just yet - this needs to
-			 * happen at the very end when all links and sink
-			 * along the path have been configured properly.
-			 */
-			;
-		} else {
-			ret = coresight_enable_link(cd);
+	struct coresight_node *nd;
+	struct coresight_device *csdev, *parent, *child;
+
+	list_for_each_entry(nd, path, link) {
+		csdev = nd->csdev;
+
+		switch (csdev->type) {
+		case CORESIGHT_DEV_TYPE_SINK:
+		case CORESIGHT_DEV_TYPE_LINKSINK:
+			coresight_disable_sink(csdev);
+			break;
+		case CORESIGHT_DEV_TYPE_SOURCE:
+			/* sources are disabled from either sysFS or Perf */
+			break;
+		case CORESIGHT_DEV_TYPE_LINK:
+			parent = list_prev_entry(nd, link)->csdev;
+			child = list_next_entry(nd, link)->csdev;
+			coresight_disable_link(csdev, parent, child);
+			break;
+		default:
+			break;
 		}
-		if (ret)
-			goto err;
 	}
+}
 
-	return 0;
-err:
-	list_for_each_entry_continue_reverse(cd, path, path_link) {
-		if (cd == list_first_entry(path, struct coresight_device,
-					   path_link)) {
-			coresight_disable_sink(cd);
-		} else if (list_is_last(&cd->path_link, path)) {
-			;
-		} else {
-			coresight_disable_link(cd);
+int coresight_enable_path(struct list_head *path, u32 mode)
+{
+
+	int ret = 0;
+	struct coresight_node *nd;
+	struct coresight_device *csdev, *parent, *child;
+
+	list_for_each_entry_reverse(nd, path, link) {
+		csdev = nd->csdev;
+
+		switch (csdev->type) {
+		case CORESIGHT_DEV_TYPE_SINK:
+		case CORESIGHT_DEV_TYPE_LINKSINK:
+			ret = coresight_enable_sink(csdev, mode);
+			if (ret)
+				goto err;
+			break;
+		case CORESIGHT_DEV_TYPE_SOURCE:
+			/* sources are enabled from either sysFS or Perf */
+			break;
+		case CORESIGHT_DEV_TYPE_LINK:
+			parent = list_prev_entry(nd, link)->csdev;
+			child = list_next_entry(nd, link)->csdev;
+			ret = coresight_enable_link(csdev, parent, child);
+			if (ret)
+				goto err;
+			break;
+		default:
+			goto err;
 		}
 	}
 
+out:
 	return ret;
+err:
+	coresight_disable_path(path);
+	goto out;
 }
 
-static int coresight_disable_path(struct list_head *path)
+struct coresight_device *coresight_get_sink(struct list_head *path)
 {
-	struct coresight_device *cd;
+	struct coresight_device *csdev;
 
-	list_for_each_entry_reverse(cd, path, path_link) {
-		if (cd == list_first_entry(path, struct coresight_device,
-					   path_link)) {
-			coresight_disable_sink(cd);
-		} else if (list_is_last(&cd->path_link, path)) {
-			/*
-			 * The source has already been stopped, no need
-			 * to do it again here.
-			 */
-			;
-		} else {
-			coresight_disable_link(cd);
+	if (!path)
+		return NULL;
+
+	csdev = list_last_entry(path, struct coresight_node, link)->csdev;
+	if (csdev->type != CORESIGHT_DEV_TYPE_SINK &&
+	    csdev->type != CORESIGHT_DEV_TYPE_LINKSINK)
+		return NULL;
+
+	return csdev;
+}
+
+/**
+ * _coresight_build_path - recursively build a path from a @csdev to a sink.
+ * @csdev:	The device to start from.
+ * @path:	The list to add devices to.
+ *
+ * The tree of Coresight device is traversed until an activated sink is
+ * found.  From there the sink is added to the list along with all the
+ * devices that led to that point - the end result is a list from source
+ * to sink. In that list the source is the first device and the sink the
+ * last one.
+ */
+static int _coresight_build_path(struct coresight_device *csdev,
+				 struct list_head *path)
+{
+	int i;
+	bool found = false;
+	struct coresight_node *node;
+	struct coresight_connection *conn;
+
+	/* An activated sink has been found.  Enqueue the element */
+	if ((csdev->type == CORESIGHT_DEV_TYPE_SINK ||
+	     csdev->type == CORESIGHT_DEV_TYPE_LINKSINK) && csdev->activated)
+		goto out;
+
+	/* Not a sink - recursively explore each port found on this element */
+	for (i = 0; i < csdev->nr_outport; i++) {
+		conn = &csdev->conns[i];
+		if (_coresight_build_path(conn->child_dev, path) == 0) {
+			found = true;
+			break;
 		}
 	}
 
+	if (!found)
+		return -ENODEV;
+
+out:
+	/*
+	 * A path from this element to a sink has been found.  The elements
+	 * leading to the sink are already enqueued, all that is left to do
+	 * is tell the PM runtime core we need this element and add a node
+	 * for it.
+	 */
+	node = kzalloc(sizeof(struct coresight_node), GFP_KERNEL);
+	if (!node)
+		return -ENOMEM;
+
+	node->csdev = csdev;
+	list_add(&node->link, path);
+	pm_runtime_get_sync(csdev->dev.parent);
+
 	return 0;
 }
 
-static int coresight_build_paths(struct coresight_device *csdev,
-				 struct list_head *path,
-				 bool enable)
+struct list_head *coresight_build_path(struct coresight_device *csdev)
 {
-	int i, ret = -EINVAL;
-	struct coresight_connection *conn;
+	struct list_head *path;
 
-	list_add(&csdev->path_link, path);
+	path = kzalloc(sizeof(struct list_head), GFP_KERNEL);
+	if (!path)
+		return NULL;
 
-	if ((csdev->type == CORESIGHT_DEV_TYPE_SINK ||
-	    csdev->type == CORESIGHT_DEV_TYPE_LINKSINK) &&
-	    csdev->activated) {
-		if (enable)
-			ret = coresight_enable_path(path);
-		else
-			ret = coresight_disable_path(path);
-	} else {
-		for (i = 0; i < csdev->nr_outport; i++) {
-			conn = &csdev->conns[i];
-			if (coresight_build_paths(conn->child_dev,
-						    path, enable) == 0)
-				ret = 0;
-		}
+	INIT_LIST_HEAD(path);
+
+	if (_coresight_build_path(csdev, path)) {
+		kfree(path);
+		path = NULL;
 	}
 
-	if (list_first_entry(path, struct coresight_device, path_link) != csdev)
-		dev_err(&csdev->dev, "wrong device in %s\n", __func__);
+	return path;
+}
 
-	list_del(&csdev->path_link);
+/**
+ * coresight_release_path - release a previously built path.
+ * @path:	the path to release.
+ *
+ * Go through all the elements of a path and 1) removed it from the list and
+ * 2) free the memory allocated for each node.
+ */
+void coresight_release_path(struct list_head *path)
+{
+	struct coresight_device *csdev;
+	struct coresight_node *nd, *next;
 
-	return ret;
+	list_for_each_entry_safe(nd, next, path, link) {
+		csdev = nd->csdev;
+
+		pm_runtime_put_sync(csdev->dev.parent);
+		list_del(&nd->link);
+		kfree(nd);
+	}
+
+	kfree(path);
+	path = NULL;
 }
 
 int coresight_enable(struct coresight_device *csdev)
 {
 	int ret = 0;
-	LIST_HEAD(path);
+	int cpu;
+	struct list_head *path;
 
 	mutex_lock(&coresight_mutex);
 	if (csdev->type != CORESIGHT_DEV_TYPE_SOURCE) {
@@ -348,22 +447,47 @@ int coresight_enable(struct coresight_device *csdev)
 	if (csdev->enable)
 		goto out;
 
-	if (coresight_build_paths(csdev, &path, true)) {
-		dev_err(&csdev->dev, "building path(s) failed\n");
+	path = coresight_build_path(csdev);
+	if (!path) {
+		pr_err("building path(s) failed\n");
 		goto out;
 	}
 
-	if (coresight_enable_source(csdev))
-		dev_err(&csdev->dev, "source enable failed\n");
+	ret = coresight_enable_path(path, CS_MODE_SYSFS);
+	if (ret)
+		goto err_path;
+
+	ret = coresight_enable_source(csdev, CS_MODE_SYSFS);
+	if (ret)
+		goto err_source;
+
+	/*
+	 * When working from sysFS it is important to keep track
+	 * of the paths that were created so that they can be
+	 * undone in 'coresight_disable()'.  Since there can only
+	 * be a single session per tracer (when working from sysFS)
+	 * a per-cpu variable will do just fine.
+	 */
+	cpu = source_ops(csdev)->cpu_id(csdev);
+	per_cpu(sysfs_path, cpu) = path;
+
 out:
 	mutex_unlock(&coresight_mutex);
 	return ret;
+
+err_source:
+	coresight_disable_path(path);
+
+err_path:
+	coresight_release_path(path);
+	goto out;
 }
 EXPORT_SYMBOL_GPL(coresight_enable);
 
 void coresight_disable(struct coresight_device *csdev)
 {
-	LIST_HEAD(path);
+	int cpu;
+	struct list_head *path;
 
 	mutex_lock(&coresight_mutex);
 	if (csdev->type != CORESIGHT_DEV_TYPE_SOURCE) {
@@ -373,9 +497,12 @@ void coresight_disable(struct coresight_device *csdev)
 	if (!csdev->enable)
 		goto out;
 
+	cpu = source_ops(csdev)->cpu_id(csdev);
+	path = per_cpu(sysfs_path, cpu);
 	coresight_disable_source(csdev);
-	if (coresight_build_paths(csdev, &path, false))
-		dev_err(&csdev->dev, "releasing path(s) failed\n");
+	coresight_disable_path(path);
+	coresight_release_path(path);
+	per_cpu(sysfs_path, cpu) = NULL;
 
 out:
 	mutex_unlock(&coresight_mutex);
@@ -481,6 +608,8 @@ static void coresight_device_release(struct device *dev)
 {
 	struct coresight_device *csdev = to_coresight_device(dev);
 
+	kfree(csdev->conns);
+	kfree(csdev->refcnt);
 	kfree(csdev);
 }
 
@@ -536,7 +665,7 @@ static void coresight_fixup_orphan_conns(struct coresight_device *csdev)
 	 * are hooked-up with each newly added component.
 	 */
 	bus_for_each_dev(&coresight_bustype, NULL,
-				 csdev, coresight_orphan_match);
+			 csdev, coresight_orphan_match);
 }
 
 
@@ -568,6 +697,8 @@ static void coresight_fixup_device_conns(struct coresight_device *csdev)
 
 		if (dev) {
 			conn->child_dev = to_coresight_device(dev);
+			/* and put reference from 'bus_find_device()' */
+			put_device(dev);
 		} else {
 			csdev->orphan = true;
 			conn->child_dev = NULL;
@@ -575,6 +706,50 @@ static void coresight_fixup_device_conns(struct coresight_device *csdev)
 	}
 }
 
+static int coresight_remove_match(struct device *dev, void *data)
+{
+	int i;
+	struct coresight_device *csdev, *iterator;
+	struct coresight_connection *conn;
+
+	csdev = data;
+	iterator = to_coresight_device(dev);
+
+	/* No need to check oneself */
+	if (csdev == iterator)
+		return 0;
+
+	/*
+	 * Circle throuch all the connection of that component.  If we find
+	 * a connection whose name matches @csdev, remove it.
+	 */
+	for (i = 0; i < iterator->nr_outport; i++) {
+		conn = &iterator->conns[i];
+
+		if (conn->child_dev == NULL)
+			continue;
+
+		if (!strcmp(dev_name(&csdev->dev), conn->child_name)) {
+			iterator->orphan = true;
+			conn->child_dev = NULL;
+			/* No need to continue */
+			break;
+		}
+	}
+
+	/*
+	 * Returning '0' ensures that all known component on the
+	 * bus will be checked.
+	 */
+	return 0;
+}
+
+static void coresight_remove_conns(struct coresight_device *csdev)
+{
+	bus_for_each_dev(&coresight_bustype, NULL,
+			 csdev, coresight_remove_match);
+}
+
 /**
  * coresight_timeout - loop until a bit has changed to a specific state.
  * @addr: base address of the area of interest.
@@ -713,13 +888,8 @@ EXPORT_SYMBOL_GPL(coresight_register);
 
 void coresight_unregister(struct coresight_device *csdev)
 {
-	mutex_lock(&coresight_mutex);
-
-	kfree(csdev->conns);
+	/* Remove references of that device in the topology */
+	coresight_remove_conns(csdev);
 	device_unregister(&csdev->dev);
-
-	mutex_unlock(&coresight_mutex);
 }
 EXPORT_SYMBOL_GPL(coresight_unregister);
-
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/hwtracing/coresight/of_coresight.c b/drivers/hwtracing/coresight/of_coresight.c
index b097361..b68da18 100644
--- a/drivers/hwtracing/coresight/of_coresight.c
+++ b/drivers/hwtracing/coresight/of_coresight.c
@@ -10,7 +10,6 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/module.h>
 #include <linux/types.h>
 #include <linux/err.h>
 #include <linux/slab.h>
@@ -86,7 +85,7 @@ static int of_coresight_alloc_memory(struct device *dev,
 		return -ENOMEM;
 
 	/* Children connected to this component via @outports */
-	 pdata->child_names = devm_kzalloc(dev, pdata->nr_outport *
+	pdata->child_names = devm_kzalloc(dev, pdata->nr_outport *
 					  sizeof(*pdata->child_names),
 					  GFP_KERNEL);
 	if (!pdata->child_names)
diff --git a/drivers/hwtracing/intel_th/Kconfig b/drivers/hwtracing/intel_th/Kconfig
index b7a9073..1b412f8 100644
--- a/drivers/hwtracing/intel_th/Kconfig
+++ b/drivers/hwtracing/intel_th/Kconfig
@@ -1,5 +1,6 @@
 config INTEL_TH
 	tristate "Intel(R) Trace Hub controller"
+	depends on HAS_DMA && HAS_IOMEM
 	help
 	  Intel(R) Trace Hub (TH) is a set of hardware blocks (subdevices) that
 	  produce, switch and output trace data from multiple hardware and
diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c
index 165d300..4272f2c 100644
--- a/drivers/hwtracing/intel_th/core.c
+++ b/drivers/hwtracing/intel_th/core.c
@@ -124,17 +124,34 @@ static struct device_type intel_th_source_device_type = {
 	.release	= intel_th_device_release,
 };
 
+static struct intel_th *to_intel_th(struct intel_th_device *thdev)
+{
+	/*
+	 * subdevice tree is flat: if this one is not a switch, its
+	 * parent must be
+	 */
+	if (thdev->type != INTEL_TH_SWITCH)
+		thdev = to_intel_th_hub(thdev);
+
+	if (WARN_ON_ONCE(!thdev || thdev->type != INTEL_TH_SWITCH))
+		return NULL;
+
+	return dev_get_drvdata(thdev->dev.parent);
+}
+
 static char *intel_th_output_devnode(struct device *dev, umode_t *mode,
 				     kuid_t *uid, kgid_t *gid)
 {
 	struct intel_th_device *thdev = to_intel_th_device(dev);
+	struct intel_th *th = to_intel_th(thdev);
 	char *node;
 
 	if (thdev->id >= 0)
-		node = kasprintf(GFP_KERNEL, "intel_th%d/%s%d", 0, thdev->name,
-				 thdev->id);
+		node = kasprintf(GFP_KERNEL, "intel_th%d/%s%d", th->id,
+				 thdev->name, thdev->id);
 	else
-		node = kasprintf(GFP_KERNEL, "intel_th%d/%s", 0, thdev->name);
+		node = kasprintf(GFP_KERNEL, "intel_th%d/%s", th->id,
+				 thdev->name);
 
 	return node;
 }
@@ -319,6 +336,7 @@ static struct intel_th_subdevice {
 	unsigned		nres;
 	unsigned		type;
 	unsigned		otype;
+	unsigned		scrpd;
 	int			id;
 } intel_th_subdevices[TH_SUBDEVICE_MAX] = {
 	{
@@ -352,6 +370,7 @@ static struct intel_th_subdevice {
 		.id	= 0,
 		.type	= INTEL_TH_OUTPUT,
 		.otype	= GTH_MSU,
+		.scrpd	= SCRPD_MEM_IS_PRIM_DEST | SCRPD_MSC0_IS_ENABLED,
 	},
 	{
 		.nres	= 2,
@@ -371,6 +390,7 @@ static struct intel_th_subdevice {
 		.id	= 1,
 		.type	= INTEL_TH_OUTPUT,
 		.otype	= GTH_MSU,
+		.scrpd	= SCRPD_MEM_IS_PRIM_DEST | SCRPD_MSC1_IS_ENABLED,
 	},
 	{
 		.nres	= 2,
@@ -403,6 +423,7 @@ static struct intel_th_subdevice {
 		.name	= "pti",
 		.type	= INTEL_TH_OUTPUT,
 		.otype	= GTH_PTI,
+		.scrpd	= SCRPD_PTI_IS_PRIM_DEST,
 	},
 	{
 		.nres	= 1,
@@ -477,6 +498,7 @@ static int intel_th_populate(struct intel_th *th, struct resource *devres,
 			thdev->dev.devt = MKDEV(th->major, i);
 			thdev->output.type = subdev->otype;
 			thdev->output.port = -1;
+			thdev->output.scratchpad = subdev->scrpd;
 		}
 
 		err = device_add(&thdev->dev);
@@ -579,6 +601,8 @@ intel_th_alloc(struct device *dev, struct resource *devres,
 	}
 	th->dev = dev;
 
+	dev_set_drvdata(dev, th);
+
 	err = intel_th_populate(th, devres, ndevres, irq);
 	if (err)
 		goto err_chrdev;
diff --git a/drivers/hwtracing/intel_th/gth.c b/drivers/hwtracing/intel_th/gth.c
index 2dc5378..9beea0b 100644
--- a/drivers/hwtracing/intel_th/gth.c
+++ b/drivers/hwtracing/intel_th/gth.c
@@ -146,24 +146,6 @@ gth_master_set(struct gth_device *gth, unsigned int master, int port)
 	iowrite32(val, gth->base + reg);
 }
 
-/*static int gth_master_get(struct gth_device *gth, unsigned int master)
-{
-	unsigned int reg = REG_GTH_SWDEST0 + ((master >> 1) & ~3u);
-	unsigned int shift = (master & 0x7) * 4;
-	u32 val;
-
-	if (master >= 256) {
-		reg = REG_GTH_GSWTDEST;
-		shift = 0;
-	}
-
-	val = ioread32(gth->base + reg);
-	val &= (0xf << shift);
-	val >>= shift;
-
-	return val ? val & 0x7 : -1;
-	}*/
-
 static ssize_t master_attr_show(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
@@ -304,6 +286,10 @@ static int intel_th_gth_reset(struct gth_device *gth)
 	if (scratchpad & SCRPD_DEBUGGER_IN_USE)
 		return -EBUSY;
 
+	/* Always save/restore STH and TU registers in S0ix entry/exit */
+	scratchpad |= SCRPD_STH_IS_ENABLED | SCRPD_TRIGGER_IS_ENABLED;
+	iowrite32(scratchpad, gth->base + REG_GTH_SCRPD0);
+
 	/* output ports */
 	for (port = 0; port < 8; port++) {
 		if (gth_output_parm_get(gth, port, TH_OUTPUT_PARM(port)) ==
@@ -506,6 +492,10 @@ static void intel_th_gth_disable(struct intel_th_device *thdev,
 	if (!count)
 		dev_dbg(&thdev->dev, "timeout waiting for GTH[%d] PLE\n",
 			output->port);
+
+	reg = ioread32(gth->base + REG_GTH_SCRPD0);
+	reg &= ~output->scratchpad;
+	iowrite32(reg, gth->base + REG_GTH_SCRPD0);
 }
 
 /**
@@ -520,7 +510,7 @@ static void intel_th_gth_enable(struct intel_th_device *thdev,
 				struct intel_th_output *output)
 {
 	struct gth_device *gth = dev_get_drvdata(&thdev->dev);
-	u32 scr = 0xfc0000;
+	u32 scr = 0xfc0000, scrpd;
 	int master;
 
 	spin_lock(&gth->gth_lock);
@@ -535,6 +525,10 @@ static void intel_th_gth_enable(struct intel_th_device *thdev,
 	output->active = true;
 	spin_unlock(&gth->gth_lock);
 
+	scrpd = ioread32(gth->base + REG_GTH_SCRPD0);
+	scrpd |= output->scratchpad;
+	iowrite32(scrpd, gth->base + REG_GTH_SCRPD0);
+
 	iowrite32(scr, gth->base + REG_GTH_SCR);
 	iowrite32(0, gth->base + REG_GTH_SCR2);
 }
diff --git a/drivers/hwtracing/intel_th/gth.h b/drivers/hwtracing/intel_th/gth.h
index 3b714b7..56f0d26 100644
--- a/drivers/hwtracing/intel_th/gth.h
+++ b/drivers/hwtracing/intel_th/gth.h
@@ -57,9 +57,6 @@ enum {
 	REG_GTH_SCRPD3		= 0xec, /* ScratchPad[3] */
 };
 
-/* Externall debugger is using Intel TH */
-#define SCRPD_DEBUGGER_IN_USE	BIT(24)
-
 /* waiting for Pipeline Empty bit(s) to assert for GTH */
 #define GTH_PLE_WAITLOOP_DEPTH	10000
 
diff --git a/drivers/hwtracing/intel_th/intel_th.h b/drivers/hwtracing/intel_th/intel_th.h
index 57fd72b..eedd093 100644
--- a/drivers/hwtracing/intel_th/intel_th.h
+++ b/drivers/hwtracing/intel_th/intel_th.h
@@ -30,6 +30,7 @@ enum {
  * struct intel_th_output - descriptor INTEL_TH_OUTPUT type devices
  * @port:	output port number, assigned by the switch
  * @type:	GTH_{MSU,CTP,PTI}
+ * @scratchpad:	scratchpad bits to flag when this output is enabled
  * @multiblock:	true for multiblock output configuration
  * @active:	true when this output is enabled
  *
@@ -41,6 +42,7 @@ enum {
 struct intel_th_output {
 	int		port;
 	unsigned int	type;
+	unsigned int	scratchpad;
 	bool		multiblock;
 	bool		active;
 };
@@ -241,4 +243,43 @@ enum {
 	GTH_PTI = 4,	/* MIPI-PTI */
 };
 
+/*
+ * Scratchpad bits: tell firmware and external debuggers
+ * what we are up to.
+ */
+enum {
+	/* Memory is the primary destination */
+	SCRPD_MEM_IS_PRIM_DEST		= BIT(0),
+	/* XHCI DbC is the primary destination */
+	SCRPD_DBC_IS_PRIM_DEST		= BIT(1),
+	/* PTI is the primary destination */
+	SCRPD_PTI_IS_PRIM_DEST		= BIT(2),
+	/* BSSB is the primary destination */
+	SCRPD_BSSB_IS_PRIM_DEST		= BIT(3),
+	/* PTI is the alternate destination */
+	SCRPD_PTI_IS_ALT_DEST		= BIT(4),
+	/* BSSB is the alternate destination */
+	SCRPD_BSSB_IS_ALT_DEST		= BIT(5),
+	/* DeepSx exit occurred */
+	SCRPD_DEEPSX_EXIT		= BIT(6),
+	/* S4 exit occurred */
+	SCRPD_S4_EXIT			= BIT(7),
+	/* S5 exit occurred */
+	SCRPD_S5_EXIT			= BIT(8),
+	/* MSU controller 0/1 is enabled */
+	SCRPD_MSC0_IS_ENABLED		= BIT(9),
+	SCRPD_MSC1_IS_ENABLED		= BIT(10),
+	/* Sx exit occurred */
+	SCRPD_SX_EXIT			= BIT(11),
+	/* Trigger Unit is enabled */
+	SCRPD_TRIGGER_IS_ENABLED	= BIT(12),
+	SCRPD_ODLA_IS_ENABLED		= BIT(13),
+	SCRPD_SOCHAP_IS_ENABLED		= BIT(14),
+	SCRPD_STH_IS_ENABLED		= BIT(15),
+	SCRPD_DCIH_IS_ENABLED		= BIT(16),
+	SCRPD_VER_IS_ENABLED		= BIT(17),
+	/* External debugger is using Intel TH */
+	SCRPD_DEBUGGER_IN_USE		= BIT(24),
+};
+
 #endif
diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c
index 70ca27e4..d9d6022 100644
--- a/drivers/hwtracing/intel_th/msu.c
+++ b/drivers/hwtracing/intel_th/msu.c
@@ -408,7 +408,7 @@ msc_buffer_iterate(struct msc_iter *iter, size_t size, void *data,
 		 * Second time (wrap_count==1), it's just like any other block,
 		 * containing data in the range of [MSC_BDESC..data_bytes].
 		 */
-		if (iter->block == iter->start_block && iter->wrap_count) {
+		if (iter->block == iter->start_block && iter->wrap_count == 2) {
 			tocopy = DATA_IN_PAGE - data_bytes;
 			src += data_bytes;
 		}
@@ -1112,12 +1112,11 @@ static ssize_t intel_th_msc_read(struct file *file, char __user *buf,
 		size = msc->nr_pages << PAGE_SHIFT;
 
 	if (!size)
-		return 0;
+		goto put_count;
 
-	if (off >= size) {
-		len = 0;
+	if (off >= size)
 		goto put_count;
-	}
+
 	if (off + len >= size)
 		len = size - off;
 
diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c
index 641e879..bca7a2a 100644
--- a/drivers/hwtracing/intel_th/pci.c
+++ b/drivers/hwtracing/intel_th/pci.c
@@ -46,8 +46,6 @@ static int intel_th_pci_probe(struct pci_dev *pdev,
 	if (IS_ERR(th))
 		return PTR_ERR(th);
 
-	pci_set_drvdata(pdev, th);
-
 	return 0;
 }
 
@@ -67,6 +65,16 @@ static const struct pci_device_id intel_th_pci_id_table[] = {
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa126),
 		.driver_data = (kernel_ulong_t)0,
 	},
+	{
+		/* Apollo Lake */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x5a8e),
+		.driver_data = (kernel_ulong_t)0,
+	},
+	{
+		/* Broxton */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0a80),
+		.driver_data = (kernel_ulong_t)0,
+	},
 	{ 0 },
 };
 
diff --git a/drivers/hwtracing/intel_th/sth.c b/drivers/hwtracing/intel_th/sth.c
index 56101c3..e1aee61 100644
--- a/drivers/hwtracing/intel_th/sth.c
+++ b/drivers/hwtracing/intel_th/sth.c
@@ -94,10 +94,13 @@ static ssize_t sth_stm_packet(struct stm_data *stm_data, unsigned int master,
 	case STP_PACKET_TRIG:
 		if (flags & STP_PACKET_TIMESTAMPED)
 			reg += 4;
-		iowrite8(*payload, sth->base + reg);
+		writeb_relaxed(*payload, sth->base + reg);
 		break;
 
 	case STP_PACKET_MERR:
+		if (size > 4)
+			size = 4;
+
 		sth_iowrite(&out->MERR, payload, size);
 		break;
 
@@ -107,8 +110,8 @@ static ssize_t sth_stm_packet(struct stm_data *stm_data, unsigned int master,
 		else
 			outp = (u64 __iomem *)&out->FLAG;
 
-		size = 1;
-		sth_iowrite(outp, payload, size);
+		size = 0;
+		writeb_relaxed(0, outp);
 		break;
 
 	case STP_PACKET_USER:
@@ -129,6 +132,8 @@ static ssize_t sth_stm_packet(struct stm_data *stm_data, unsigned int master,
 
 		sth_iowrite(outp, payload, size);
 		break;
+	default:
+		return -ENOTSUPP;
 	}
 
 	return size;
diff --git a/drivers/hwtracing/stm/Kconfig b/drivers/hwtracing/stm/Kconfig
index 83e9f59..847a39b 100644
--- a/drivers/hwtracing/stm/Kconfig
+++ b/drivers/hwtracing/stm/Kconfig
@@ -1,6 +1,7 @@
 config STM
 	tristate "System Trace Module devices"
 	select CONFIGFS_FS
+	select SRCU
 	help
 	  A System Trace Module (STM) is a device exporting data in System
 	  Trace Protocol (STP) format as defined by MIPI STP standards.
@@ -8,6 +9,8 @@ config STM
 
 	  Say Y here to enable System Trace Module device support.
 
+if STM
+
 config STM_DUMMY
 	tristate "Dummy STM driver"
 	help
@@ -24,3 +27,16 @@ config STM_SOURCE_CONSOLE
 
 	  If you want to send kernel console messages over STM devices,
 	  say Y.
+
+config STM_SOURCE_HEARTBEAT
+	tristate "Heartbeat over STM devices"
+	help
+	  This is a kernel space trace source that sends periodic
+	  heartbeat messages to trace hosts over STM devices. It is
+	  also useful for testing stm class drivers and the stm class
+	  framework itself.
+
+	  If you want to send heartbeat messages over STM devices,
+	  say Y.
+
+endif
diff --git a/drivers/hwtracing/stm/Makefile b/drivers/hwtracing/stm/Makefile
index f9312c3..a9ce3d4 100644
--- a/drivers/hwtracing/stm/Makefile
+++ b/drivers/hwtracing/stm/Makefile
@@ -5,5 +5,7 @@ stm_core-y		:= core.o policy.o
 obj-$(CONFIG_STM_DUMMY)	+= dummy_stm.o
 
 obj-$(CONFIG_STM_SOURCE_CONSOLE)	+= stm_console.o
+obj-$(CONFIG_STM_SOURCE_HEARTBEAT)	+= stm_heartbeat.o
 
 stm_console-y		:= console.o
+stm_heartbeat-y		:= heartbeat.o
diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c
index b6445d9..de80d45 100644
--- a/drivers/hwtracing/stm/core.c
+++ b/drivers/hwtracing/stm/core.c
@@ -113,6 +113,7 @@ struct stm_device *stm_find_device(const char *buf)
 
 	stm = to_stm_device(dev);
 	if (!try_module_get(stm->owner)) {
+		/* matches class_find_device() above */
 		put_device(dev);
 		return NULL;
 	}
@@ -125,7 +126,7 @@ struct stm_device *stm_find_device(const char *buf)
  * @stm:	stm device, previously acquired by stm_find_device()
  *
  * This drops the module reference and device reference taken by
- * stm_find_device().
+ * stm_find_device() or stm_char_open().
  */
 void stm_put_device(struct stm_device *stm)
 {
@@ -185,6 +186,9 @@ static void stm_output_claim(struct stm_device *stm, struct stm_output *output)
 {
 	struct stp_master *master = stm_master(stm, output->master);
 
+	lockdep_assert_held(&stm->mc_lock);
+	lockdep_assert_held(&output->lock);
+
 	if (WARN_ON_ONCE(master->nr_free < output->nr_chans))
 		return;
 
@@ -199,6 +203,9 @@ stm_output_disclaim(struct stm_device *stm, struct stm_output *output)
 {
 	struct stp_master *master = stm_master(stm, output->master);
 
+	lockdep_assert_held(&stm->mc_lock);
+	lockdep_assert_held(&output->lock);
+
 	bitmap_release_region(&master->chan_map[0], output->channel,
 			      ilog2(output->nr_chans));
 
@@ -233,7 +240,7 @@ static int find_free_channels(unsigned long *bitmap, unsigned int start,
 	return -1;
 }
 
-static unsigned int
+static int
 stm_find_master_chan(struct stm_device *stm, unsigned int width,
 		     unsigned int *mstart, unsigned int mend,
 		     unsigned int *cstart, unsigned int cend)
@@ -288,12 +295,13 @@ static int stm_output_assign(struct stm_device *stm, unsigned int width,
 	}
 
 	spin_lock(&stm->mc_lock);
+	spin_lock(&output->lock);
 	/* output is already assigned -- shouldn't happen */
 	if (WARN_ON_ONCE(output->nr_chans))
 		goto unlock;
 
 	ret = stm_find_master_chan(stm, width, &midx, mend, &cidx, cend);
-	if (ret)
+	if (ret < 0)
 		goto unlock;
 
 	output->master = midx;
@@ -304,6 +312,7 @@ static int stm_output_assign(struct stm_device *stm, unsigned int width,
 
 	ret = 0;
 unlock:
+	spin_unlock(&output->lock);
 	spin_unlock(&stm->mc_lock);
 
 	return ret;
@@ -312,11 +321,18 @@ unlock:
 static void stm_output_free(struct stm_device *stm, struct stm_output *output)
 {
 	spin_lock(&stm->mc_lock);
+	spin_lock(&output->lock);
 	if (output->nr_chans)
 		stm_output_disclaim(stm, output);
+	spin_unlock(&output->lock);
 	spin_unlock(&stm->mc_lock);
 }
 
+static void stm_output_init(struct stm_output *output)
+{
+	spin_lock_init(&output->lock);
+}
+
 static int major_match(struct device *dev, const void *data)
 {
 	unsigned int major = *(unsigned int *)data;
@@ -339,6 +355,7 @@ static int stm_char_open(struct inode *inode, struct file *file)
 	if (!stmf)
 		return -ENOMEM;
 
+	stm_output_init(&stmf->output);
 	stmf->stm = to_stm_device(dev);
 
 	if (!try_module_get(stmf->stm->owner))
@@ -349,6 +366,8 @@ static int stm_char_open(struct inode *inode, struct file *file)
 	return nonseekable_open(inode, file);
 
 err_free:
+	/* matches class_find_device() above */
+	put_device(dev);
 	kfree(stmf);
 
 	return err;
@@ -357,9 +376,19 @@ err_free:
 static int stm_char_release(struct inode *inode, struct file *file)
 {
 	struct stm_file *stmf = file->private_data;
+	struct stm_device *stm = stmf->stm;
+
+	if (stm->data->unlink)
+		stm->data->unlink(stm->data, stmf->output.master,
+				  stmf->output.channel);
 
-	stm_output_free(stmf->stm, &stmf->output);
-	stm_put_device(stmf->stm);
+	stm_output_free(stm, &stmf->output);
+
+	/*
+	 * matches the stm_char_open()'s
+	 * class_find_device() + try_module_get()
+	 */
+	stm_put_device(stm);
 	kfree(stmf);
 
 	return 0;
@@ -380,8 +409,8 @@ static int stm_file_assign(struct stm_file *stmf, char *id, unsigned int width)
 	return ret;
 }
 
-static void stm_write(struct stm_data *data, unsigned int master,
-		      unsigned int channel, const char *buf, size_t count)
+static ssize_t stm_write(struct stm_data *data, unsigned int master,
+			  unsigned int channel, const char *buf, size_t count)
 {
 	unsigned int flags = STP_PACKET_TIMESTAMPED;
 	const unsigned char *p = buf, nil = 0;
@@ -393,9 +422,14 @@ static void stm_write(struct stm_data *data, unsigned int master,
 		sz = data->packet(data, master, channel, STP_PACKET_DATA, flags,
 				  sz, p);
 		flags = 0;
+
+		if (sz < 0)
+			break;
 	}
 
 	data->packet(data, master, channel, STP_PACKET_FLAG, 0, 0, &nil);
+
+	return pos;
 }
 
 static ssize_t stm_char_write(struct file *file, const char __user *buf,
@@ -406,6 +440,9 @@ static ssize_t stm_char_write(struct file *file, const char __user *buf,
 	char *kbuf;
 	int err;
 
+	if (count + 1 > PAGE_SIZE)
+		count = PAGE_SIZE - 1;
+
 	/*
 	 * if no m/c have been assigned to this writer up to this
 	 * point, use "default" policy entry
@@ -430,8 +467,8 @@ static ssize_t stm_char_write(struct file *file, const char __user *buf,
 		return -EFAULT;
 	}
 
-	stm_write(stm->data, stmf->output.master, stmf->output.channel, kbuf,
-		  count);
+	count = stm_write(stm->data, stmf->output.master, stmf->output.channel,
+			  kbuf, count);
 
 	kfree(kbuf);
 
@@ -515,10 +552,8 @@ static int stm_char_policy_set_ioctl(struct stm_file *stmf, void __user *arg)
 		ret = stm->data->link(stm->data, stmf->output.master,
 				      stmf->output.channel);
 
-	if (ret) {
+	if (ret)
 		stm_output_free(stmf->stm, &stmf->output);
-		stm_put_device(stmf->stm);
-	}
 
 err_free:
 	kfree(id);
@@ -618,7 +653,7 @@ int stm_register_device(struct device *parent, struct stm_data *stm_data,
 	if (!stm_data->packet || !stm_data->sw_nchannels)
 		return -EINVAL;
 
-	nmasters = stm_data->sw_end - stm_data->sw_start;
+	nmasters = stm_data->sw_end - stm_data->sw_start + 1;
 	stm = kzalloc(sizeof(*stm) + nmasters * sizeof(void *), GFP_KERNEL);
 	if (!stm)
 		return -ENOMEM;
@@ -641,6 +676,7 @@ int stm_register_device(struct device *parent, struct stm_data *stm_data,
 	if (err)
 		goto err_device;
 
+	mutex_init(&stm->link_mutex);
 	spin_lock_init(&stm->link_lock);
 	INIT_LIST_HEAD(&stm->link_list);
 
@@ -654,6 +690,7 @@ int stm_register_device(struct device *parent, struct stm_data *stm_data,
 	return 0;
 
 err_device:
+	/* matches device_initialize() above */
 	put_device(&stm->dev);
 err_free:
 	kfree(stm);
@@ -662,20 +699,28 @@ err_free:
 }
 EXPORT_SYMBOL_GPL(stm_register_device);
 
-static void __stm_source_link_drop(struct stm_source_device *src,
-				   struct stm_device *stm);
+static int __stm_source_link_drop(struct stm_source_device *src,
+				  struct stm_device *stm);
 
 void stm_unregister_device(struct stm_data *stm_data)
 {
 	struct stm_device *stm = stm_data->stm;
 	struct stm_source_device *src, *iter;
-	int i;
+	int i, ret;
 
-	spin_lock(&stm->link_lock);
+	mutex_lock(&stm->link_mutex);
 	list_for_each_entry_safe(src, iter, &stm->link_list, link_entry) {
-		__stm_source_link_drop(src, stm);
+		ret = __stm_source_link_drop(src, stm);
+		/*
+		 * src <-> stm link must not change under the same
+		 * stm::link_mutex, so complain loudly if it has;
+		 * also in this situation ret!=0 means this src is
+		 * not connected to this stm and it should be otherwise
+		 * safe to proceed with the tear-down of stm.
+		 */
+		WARN_ON_ONCE(ret);
 	}
-	spin_unlock(&stm->link_lock);
+	mutex_unlock(&stm->link_mutex);
 
 	synchronize_srcu(&stm_source_srcu);
 
@@ -686,7 +731,7 @@ void stm_unregister_device(struct stm_data *stm_data)
 		stp_policy_unbind(stm->policy);
 	mutex_unlock(&stm->policy_mutex);
 
-	for (i = 0; i < stm->sw_nmasters; i++)
+	for (i = stm->data->sw_start; i <= stm->data->sw_end; i++)
 		stp_master_free(stm, i);
 
 	device_unregister(&stm->dev);
@@ -694,6 +739,17 @@ void stm_unregister_device(struct stm_data *stm_data)
 }
 EXPORT_SYMBOL_GPL(stm_unregister_device);
 
+/*
+ * stm::link_list access serialization uses a spinlock and a mutex; holding
+ * either of them guarantees that the list is stable; modification requires
+ * holding both of them.
+ *
+ * Lock ordering is as follows:
+ *   stm::link_mutex
+ *     stm::link_lock
+ *       src::link_lock
+ */
+
 /**
  * stm_source_link_add() - connect an stm_source device to an stm device
  * @src:	stm_source device
@@ -710,6 +766,7 @@ static int stm_source_link_add(struct stm_source_device *src,
 	char *id;
 	int err;
 
+	mutex_lock(&stm->link_mutex);
 	spin_lock(&stm->link_lock);
 	spin_lock(&src->link_lock);
 
@@ -719,6 +776,7 @@ static int stm_source_link_add(struct stm_source_device *src,
 
 	spin_unlock(&src->link_lock);
 	spin_unlock(&stm->link_lock);
+	mutex_unlock(&stm->link_mutex);
 
 	id = kstrdup(src->data->name, GFP_KERNEL);
 	if (id) {
@@ -753,9 +811,9 @@ static int stm_source_link_add(struct stm_source_device *src,
 
 fail_free_output:
 	stm_output_free(stm, &src->output);
-	stm_put_device(stm);
 
 fail_detach:
+	mutex_lock(&stm->link_mutex);
 	spin_lock(&stm->link_lock);
 	spin_lock(&src->link_lock);
 
@@ -764,6 +822,7 @@ fail_detach:
 
 	spin_unlock(&src->link_lock);
 	spin_unlock(&stm->link_lock);
+	mutex_unlock(&stm->link_mutex);
 
 	return err;
 }
@@ -776,28 +835,55 @@ fail_detach:
  * If @stm is @src::link, disconnect them from one another and put the
  * reference on the @stm device.
  *
- * Caller must hold stm::link_lock.
+ * Caller must hold stm::link_mutex.
  */
-static void __stm_source_link_drop(struct stm_source_device *src,
-				   struct stm_device *stm)
+static int __stm_source_link_drop(struct stm_source_device *src,
+				  struct stm_device *stm)
 {
 	struct stm_device *link;
+	int ret = 0;
+
+	lockdep_assert_held(&stm->link_mutex);
 
+	/* for stm::link_list modification, we hold both mutex and spinlock */
+	spin_lock(&stm->link_lock);
 	spin_lock(&src->link_lock);
 	link = srcu_dereference_check(src->link, &stm_source_srcu, 1);
-	if (WARN_ON_ONCE(link != stm)) {
-		spin_unlock(&src->link_lock);
-		return;
+
+	/*
+	 * The linked device may have changed since we last looked, because
+	 * we weren't holding the src::link_lock back then; if this is the
+	 * case, tell the caller to retry.
+	 */
+	if (link != stm) {
+		ret = -EAGAIN;
+		goto unlock;
 	}
 
 	stm_output_free(link, &src->output);
-	/* caller must hold stm::link_lock */
 	list_del_init(&src->link_entry);
 	/* matches stm_find_device() from stm_source_link_store() */
 	stm_put_device(link);
 	rcu_assign_pointer(src->link, NULL);
 
+unlock:
 	spin_unlock(&src->link_lock);
+	spin_unlock(&stm->link_lock);
+
+	/*
+	 * Call the unlink callbacks for both source and stm, when we know
+	 * that we have actually performed the unlinking.
+	 */
+	if (!ret) {
+		if (src->data->unlink)
+			src->data->unlink(src->data);
+
+		if (stm->data->unlink)
+			stm->data->unlink(stm->data, src->output.master,
+					  src->output.channel);
+	}
+
+	return ret;
 }
 
 /**
@@ -813,21 +899,29 @@ static void __stm_source_link_drop(struct stm_source_device *src,
 static void stm_source_link_drop(struct stm_source_device *src)
 {
 	struct stm_device *stm;
-	int idx;
+	int idx, ret;
 
+retry:
 	idx = srcu_read_lock(&stm_source_srcu);
+	/*
+	 * The stm device will be valid for the duration of this
+	 * read section, but the link may change before we grab
+	 * the src::link_lock in __stm_source_link_drop().
+	 */
 	stm = srcu_dereference(src->link, &stm_source_srcu);
 
+	ret = 0;
 	if (stm) {
-		if (src->data->unlink)
-			src->data->unlink(src->data);
-
-		spin_lock(&stm->link_lock);
-		__stm_source_link_drop(src, stm);
-		spin_unlock(&stm->link_lock);
+		mutex_lock(&stm->link_mutex);
+		ret = __stm_source_link_drop(src, stm);
+		mutex_unlock(&stm->link_mutex);
 	}
 
 	srcu_read_unlock(&stm_source_srcu, idx);
+
+	/* if it did change, retry */
+	if (ret == -EAGAIN)
+		goto retry;
 }
 
 static ssize_t stm_source_link_show(struct device *dev,
@@ -862,8 +956,10 @@ static ssize_t stm_source_link_store(struct device *dev,
 		return -EINVAL;
 
 	err = stm_source_link_add(src, link);
-	if (err)
+	if (err) {
+		/* matches the stm_find_device() above */
 		stm_put_device(link);
+	}
 
 	return err ? : count;
 }
@@ -925,6 +1021,7 @@ int stm_source_register_device(struct device *parent,
 	if (err)
 		goto err;
 
+	stm_output_init(&src->output);
 	spin_lock_init(&src->link_lock);
 	INIT_LIST_HEAD(&src->link_entry);
 	src->data = data;
@@ -973,9 +1070,9 @@ int stm_source_write(struct stm_source_data *data, unsigned int chan,
 
 	stm = srcu_dereference(src->link, &stm_source_srcu);
 	if (stm)
-		stm_write(stm->data, src->output.master,
-			  src->output.channel + chan,
-			  buf, count);
+		count = stm_write(stm->data, src->output.master,
+				  src->output.channel + chan,
+				  buf, count);
 	else
 		count = -ENODEV;
 
diff --git a/drivers/hwtracing/stm/dummy_stm.c b/drivers/hwtracing/stm/dummy_stm.c
index 3709bef..310adf5 100644
--- a/drivers/hwtracing/stm/dummy_stm.c
+++ b/drivers/hwtracing/stm/dummy_stm.c
@@ -40,22 +40,75 @@ dummy_stm_packet(struct stm_data *stm_data, unsigned int master,
 	return size;
 }
 
-static struct stm_data dummy_stm = {
-	.name		= "dummy_stm",
-	.sw_start	= 0x0000,
-	.sw_end		= 0xffff,
-	.sw_nchannels	= 0xffff,
-	.packet		= dummy_stm_packet,
-};
+#define DUMMY_STM_MAX 32
+
+static struct stm_data dummy_stm[DUMMY_STM_MAX];
+
+static int nr_dummies = 4;
+
+module_param(nr_dummies, int, 0600);
+
+static unsigned int dummy_stm_nr;
+
+static unsigned int fail_mode;
+
+module_param(fail_mode, int, 0600);
+
+static int dummy_stm_link(struct stm_data *data, unsigned int master,
+			  unsigned int channel)
+{
+	if (fail_mode && (channel & fail_mode))
+		return -EINVAL;
+
+	return 0;
+}
 
 static int dummy_stm_init(void)
 {
-	return stm_register_device(NULL, &dummy_stm, THIS_MODULE);
+	int i, ret = -ENOMEM, __nr_dummies = ACCESS_ONCE(nr_dummies);
+
+	if (__nr_dummies < 0 || __nr_dummies > DUMMY_STM_MAX)
+		return -EINVAL;
+
+	for (i = 0; i < __nr_dummies; i++) {
+		dummy_stm[i].name = kasprintf(GFP_KERNEL, "dummy_stm.%d", i);
+		if (!dummy_stm[i].name)
+			goto fail_unregister;
+
+		dummy_stm[i].sw_start		= 0x0000;
+		dummy_stm[i].sw_end		= 0xffff;
+		dummy_stm[i].sw_nchannels	= 0xffff;
+		dummy_stm[i].packet		= dummy_stm_packet;
+		dummy_stm[i].link		= dummy_stm_link;
+
+		ret = stm_register_device(NULL, &dummy_stm[i], THIS_MODULE);
+		if (ret)
+			goto fail_free;
+	}
+
+	dummy_stm_nr = __nr_dummies;
+
+	return 0;
+
+fail_unregister:
+	for (i--; i >= 0; i--) {
+		stm_unregister_device(&dummy_stm[i]);
+fail_free:
+		kfree(dummy_stm[i].name);
+	}
+
+	return ret;
+
 }
 
 static void dummy_stm_exit(void)
 {
-	stm_unregister_device(&dummy_stm);
+	int i;
+
+	for (i = 0; i < dummy_stm_nr; i++) {
+		stm_unregister_device(&dummy_stm[i]);
+		kfree(dummy_stm[i].name);
+	}
 }
 
 module_init(dummy_stm_init);
diff --git a/drivers/hwtracing/stm/heartbeat.c b/drivers/hwtracing/stm/heartbeat.c
new file mode 100644
index 0000000..0133571
--- /dev/null
+++ b/drivers/hwtracing/stm/heartbeat.c
@@ -0,0 +1,130 @@
+/*
+ * Simple heartbeat STM source driver
+ * Copyright (c) 2016, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * Heartbeat STM source will send repetitive messages over STM devices to a
+ * trace host.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/hrtimer.h>
+#include <linux/slab.h>
+#include <linux/stm.h>
+
+#define STM_HEARTBEAT_MAX	32
+
+static int nr_devs = 4;
+static int interval_ms = 10;
+
+module_param(nr_devs, int, 0600);
+module_param(interval_ms, int, 0600);
+
+static struct stm_heartbeat {
+	struct stm_source_data	data;
+	struct hrtimer		hrtimer;
+	unsigned int		active;
+} stm_heartbeat[STM_HEARTBEAT_MAX];
+
+static unsigned int nr_instances;
+
+static const char str[] = "heartbeat stm source driver is here to serve you";
+
+static enum hrtimer_restart stm_heartbeat_hrtimer_handler(struct hrtimer *hr)
+{
+	struct stm_heartbeat *heartbeat = container_of(hr, struct stm_heartbeat,
+						       hrtimer);
+
+	stm_source_write(&heartbeat->data, 0, str, sizeof str);
+	if (heartbeat->active)
+		hrtimer_forward_now(hr, ms_to_ktime(interval_ms));
+
+	return heartbeat->active ? HRTIMER_RESTART : HRTIMER_NORESTART;
+}
+
+static int stm_heartbeat_link(struct stm_source_data *data)
+{
+	struct stm_heartbeat *heartbeat =
+		container_of(data, struct stm_heartbeat, data);
+
+	heartbeat->active = 1;
+	hrtimer_start(&heartbeat->hrtimer, ms_to_ktime(interval_ms),
+		      HRTIMER_MODE_ABS);
+
+	return 0;
+}
+
+static void stm_heartbeat_unlink(struct stm_source_data *data)
+{
+	struct stm_heartbeat *heartbeat =
+		container_of(data, struct stm_heartbeat, data);
+
+	heartbeat->active = 0;
+	hrtimer_cancel(&heartbeat->hrtimer);
+}
+
+static int stm_heartbeat_init(void)
+{
+	int i, ret = -ENOMEM, __nr_instances = ACCESS_ONCE(nr_devs);
+
+	if (__nr_instances < 0 || __nr_instances > STM_HEARTBEAT_MAX)
+		return -EINVAL;
+
+	for (i = 0; i < __nr_instances; i++) {
+		stm_heartbeat[i].data.name =
+			kasprintf(GFP_KERNEL, "heartbeat.%d", i);
+		if (!stm_heartbeat[i].data.name)
+			goto fail_unregister;
+
+		stm_heartbeat[i].data.nr_chans	= 1;
+		stm_heartbeat[i].data.link		= stm_heartbeat_link;
+		stm_heartbeat[i].data.unlink	= stm_heartbeat_unlink;
+		hrtimer_init(&stm_heartbeat[i].hrtimer, CLOCK_MONOTONIC,
+			     HRTIMER_MODE_ABS);
+		stm_heartbeat[i].hrtimer.function =
+			stm_heartbeat_hrtimer_handler;
+
+		ret = stm_source_register_device(NULL, &stm_heartbeat[i].data);
+		if (ret)
+			goto fail_free;
+	}
+
+	nr_instances = __nr_instances;
+
+	return 0;
+
+fail_unregister:
+	for (i--; i >= 0; i--) {
+		stm_source_unregister_device(&stm_heartbeat[i].data);
+fail_free:
+		kfree(stm_heartbeat[i].data.name);
+	}
+
+	return ret;
+}
+
+static void stm_heartbeat_exit(void)
+{
+	int i;
+
+	for (i = 0; i < nr_instances; i++) {
+		stm_source_unregister_device(&stm_heartbeat[i].data);
+		kfree(stm_heartbeat[i].data.name);
+	}
+}
+
+module_init(stm_heartbeat_init);
+module_exit(stm_heartbeat_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("stm_heartbeat driver");
+MODULE_AUTHOR("Alexander Shishkin <alexander.shishkin@linux.intel.com>");
diff --git a/drivers/hwtracing/stm/policy.c b/drivers/hwtracing/stm/policy.c
index 11ab6d0..1db1896 100644
--- a/drivers/hwtracing/stm/policy.c
+++ b/drivers/hwtracing/stm/policy.c
@@ -272,13 +272,17 @@ void stp_policy_unbind(struct stp_policy *policy)
 {
 	struct stm_device *stm = policy->stm;
 
+	/*
+	 * stp_policy_release() will not call here if the policy is already
+	 * unbound; other users should not either, as no link exists between
+	 * this policy and anything else in that case
+	 */
 	if (WARN_ON_ONCE(!policy->stm))
 		return;
 
-	mutex_lock(&stm->policy_mutex);
-	stm->policy = NULL;
-	mutex_unlock(&stm->policy_mutex);
+	lockdep_assert_held(&stm->policy_mutex);
 
+	stm->policy = NULL;
 	policy->stm = NULL;
 
 	stm_put_device(stm);
@@ -287,8 +291,16 @@ void stp_policy_unbind(struct stp_policy *policy)
 static void stp_policy_release(struct config_item *item)
 {
 	struct stp_policy *policy = to_stp_policy(item);
+	struct stm_device *stm = policy->stm;
 
+	/* a policy *can* be unbound and still exist in configfs tree */
+	if (!stm)
+		return;
+
+	mutex_lock(&stm->policy_mutex);
 	stp_policy_unbind(policy);
+	mutex_unlock(&stm->policy_mutex);
+
 	kfree(policy);
 }
 
@@ -320,10 +332,11 @@ stp_policies_make(struct config_group *group, const char *name)
 
 	/*
 	 * node must look like <device_name>.<policy_name>, where
-	 * <device_name> is the name of an existing stm device and
-	 * <policy_name> is an arbitrary string
+	 * <device_name> is the name of an existing stm device; may
+	 *               contain dots;
+	 * <policy_name> is an arbitrary string; may not contain dots
 	 */
-	p = strchr(devname, '.');
+	p = strrchr(devname, '.');
 	if (!p) {
 		kfree(devname);
 		return ERR_PTR(-EINVAL);
diff --git a/drivers/hwtracing/stm/stm.h b/drivers/hwtracing/stm/stm.h
index 95ece02..4e8c692 100644
--- a/drivers/hwtracing/stm/stm.h
+++ b/drivers/hwtracing/stm/stm.h
@@ -45,6 +45,7 @@ struct stm_device {
 	int			major;
 	unsigned int		sw_nmasters;
 	struct stm_data		*data;
+	struct mutex		link_mutex;
 	spinlock_t		link_lock;
 	struct list_head	link_list;
 	/* master allocation */
@@ -56,6 +57,7 @@ struct stm_device {
 	container_of((_d), struct stm_device, dev)
 
 struct stm_output {
+	spinlock_t		lock;
 	unsigned int		master;
 	unsigned int		channel;
 	unsigned int		nr_chans;
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index f62d697..27fa0cb 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1271,6 +1271,8 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	switch (dev->device) {
 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_SMBUS:
 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_SMBUS:
+	case PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS:
+	case PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS:
 	case PCI_DEVICE_ID_INTEL_DNV_SMBUS:
 		priv->features |= FEATURE_I2C_BLOCK_READ;
 		priv->features |= FEATURE_IRQ;
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 08d26ba..13c4529 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -1450,7 +1450,8 @@ omap_i2c_probe(struct platform_device *pdev)
 
 err_unuse_clocks:
 	omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, 0);
-	pm_runtime_put(omap->dev);
+	pm_runtime_dont_use_autosuspend(omap->dev);
+	pm_runtime_put_sync(omap->dev);
 	pm_runtime_disable(&pdev->dev);
 err_free_mem:
 
@@ -1468,6 +1469,7 @@ static int omap_i2c_remove(struct platform_device *pdev)
 		return ret;
 
 	omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, 0);
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	return 0;
diff --git a/drivers/i2c/busses/i2c-uniphier-f.c b/drivers/i2c/busses/i2c-uniphier-f.c
index f3e5ff8..213ba55 100644
--- a/drivers/i2c/busses/i2c-uniphier-f.c
+++ b/drivers/i2c/busses/i2c-uniphier-f.c
@@ -467,7 +467,7 @@ static int uniphier_fi2c_clk_init(struct device *dev,
 		bus_speed = UNIPHIER_FI2C_DEFAULT_SPEED;
 
 	if (!bus_speed) {
-		dev_err(dev, "clock-freqyency should not be zero\n");
+		dev_err(dev, "clock-frequency should not be zero\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/i2c/busses/i2c-uniphier.c b/drivers/i2c/busses/i2c-uniphier.c
index 1f4f3f5..89eaa8a 100644
--- a/drivers/i2c/busses/i2c-uniphier.c
+++ b/drivers/i2c/busses/i2c-uniphier.c
@@ -328,7 +328,7 @@ static int uniphier_i2c_clk_init(struct device *dev,
 		bus_speed = UNIPHIER_I2C_DEFAULT_SPEED;
 
 	if (!bus_speed) {
-		dev_err(dev, "clock-freqyency should not be zero\n");
+		dev_err(dev, "clock-frequency should not be zero\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 3de9351..14606af 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -336,7 +336,6 @@ static ssize_t _show_port_gid_attr(struct ib_port *p,
 	union ib_gid gid;
 	struct ib_gid_attr gid_attr = {};
 	ssize_t ret;
-	va_list args;
 
 	ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid,
 			   &gid_attr);
@@ -348,7 +347,6 @@ static ssize_t _show_port_gid_attr(struct ib_port *p,
 err:
 	if (gid_attr.ndev)
 		dev_put(gid_attr.ndev);
-	va_end(args);
 	return ret;
 }
 
@@ -722,12 +720,11 @@ static struct attribute_group *get_counter_table(struct ib_device *dev,
 
 	if (get_perf_mad(dev, port_num, IB_PMA_CLASS_PORT_INFO,
 				&cpi, 40, sizeof(cpi)) >= 0) {
-
-		if (cpi.capability_mask && IB_PMA_CLASS_CAP_EXT_WIDTH)
+		if (cpi.capability_mask & IB_PMA_CLASS_CAP_EXT_WIDTH)
 			/* We have extended counters */
 			return &pma_group_ext;
 
-		if (cpi.capability_mask && IB_PMA_CLASS_CAP_EXT_WIDTH_NOIETF)
+		if (cpi.capability_mask & IB_PMA_CLASS_CAP_EXT_WIDTH_NOIETF)
 			/* But not the IETF ones */
 			return &pma_group_noietf;
 	}
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index 26833bf..d68f506 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -817,17 +817,48 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 	return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
 }
 
-static void edit_counter(struct mlx4_counter *cnt,
-					struct ib_pma_portcounters *pma_cnt)
+static void edit_counter(struct mlx4_counter *cnt, void *counters,
+			 __be16 attr_id)
 {
-	ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_data,
-			     (be64_to_cpu(cnt->tx_bytes) >> 2));
-	ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_data,
-			     (be64_to_cpu(cnt->rx_bytes) >> 2));
-	ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_packets,
-			     be64_to_cpu(cnt->tx_frames));
-	ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_packets,
-			     be64_to_cpu(cnt->rx_frames));
+	switch (attr_id) {
+	case IB_PMA_PORT_COUNTERS:
+	{
+		struct ib_pma_portcounters *pma_cnt =
+			(struct ib_pma_portcounters *)counters;
+
+		ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_data,
+				     (be64_to_cpu(cnt->tx_bytes) >> 2));
+		ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_data,
+				     (be64_to_cpu(cnt->rx_bytes) >> 2));
+		ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_packets,
+				     be64_to_cpu(cnt->tx_frames));
+		ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_packets,
+				     be64_to_cpu(cnt->rx_frames));
+		break;
+	}
+	case IB_PMA_PORT_COUNTERS_EXT:
+	{
+		struct ib_pma_portcounters_ext *pma_cnt_ext =
+			(struct ib_pma_portcounters_ext *)counters;
+
+		pma_cnt_ext->port_xmit_data =
+			cpu_to_be64(be64_to_cpu(cnt->tx_bytes) >> 2);
+		pma_cnt_ext->port_rcv_data =
+			cpu_to_be64(be64_to_cpu(cnt->rx_bytes) >> 2);
+		pma_cnt_ext->port_xmit_packets = cnt->tx_frames;
+		pma_cnt_ext->port_rcv_packets = cnt->rx_frames;
+		break;
+	}
+	}
+}
+
+static int iboe_process_mad_port_info(void *out_mad)
+{
+	struct ib_class_port_info cpi = {};
+
+	cpi.capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH;
+	memcpy(out_mad, &cpi, sizeof(cpi));
+	return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
 }
 
 static int iboe_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
@@ -842,6 +873,9 @@ static int iboe_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 	if (in_mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_PERF_MGMT)
 		return -EINVAL;
 
+	if (in_mad->mad_hdr.attr_id == IB_PMA_CLASS_PORT_INFO)
+		return iboe_process_mad_port_info((void *)(out_mad->data + 40));
+
 	memset(&counter_stats, 0, sizeof(counter_stats));
 	mutex_lock(&dev->counters_table[port_num - 1].mutex);
 	list_for_each_entry(tmp_counter,
@@ -863,7 +897,8 @@ static int iboe_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 		switch (counter_stats.counter_mode & 0xf) {
 		case 0:
 			edit_counter(&counter_stats,
-				     (void *)(out_mad->data + 40));
+				     (void *)(out_mad->data + 40),
+				     in_mad->mad_hdr.attr_id);
 			err = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
 			break;
 		default:
@@ -894,8 +929,10 @@ int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 	 */
 	if (link == IB_LINK_LAYER_INFINIBAND) {
 		if (mlx4_is_slave(dev->dev) &&
-		    in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT &&
-		    in_mad->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS)
+		    (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT &&
+		     (in_mad->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS ||
+		      in_mad->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS_EXT ||
+		      in_mad->mad_hdr.attr_id == IB_PMA_CLASS_PORT_INFO)))
 			return iboe_process_mad(ibdev, mad_flags, port_num, in_wc,
 						in_grh, in_mad, out_mad);
 
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index bc5536f..fd97534 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1681,9 +1681,12 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
 	}
 
 	if (qp->ibqp.uobject)
-		context->usr_page = cpu_to_be32(to_mucontext(ibqp->uobject->context)->uar.index);
+		context->usr_page = cpu_to_be32(
+			mlx4_to_hw_uar_index(dev->dev,
+					     to_mucontext(ibqp->uobject->context)->uar.index));
 	else
-		context->usr_page = cpu_to_be32(dev->priv_uar.index);
+		context->usr_page = cpu_to_be32(
+			mlx4_to_hw_uar_index(dev->dev, dev->priv_uar.index));
 
 	if (attr_mask & IB_QP_DEST_QPN)
 		context->remote_qpn = cpu_to_be32(attr->dest_qp_num);
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 9116bc3..34cb8e8 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -270,8 +270,10 @@ static int sq_overhead(enum ib_qp_type qp_type)
 		/* fall through */
 	case IB_QPT_RC:
 		size += sizeof(struct mlx5_wqe_ctrl_seg) +
-			sizeof(struct mlx5_wqe_atomic_seg) +
-			sizeof(struct mlx5_wqe_raddr_seg);
+			max(sizeof(struct mlx5_wqe_atomic_seg) +
+			    sizeof(struct mlx5_wqe_raddr_seg),
+			    sizeof(struct mlx5_wqe_umr_ctrl_seg) +
+			    sizeof(struct mlx5_mkey_seg));
 		break;
 
 	case IB_QPT_XRC_TGT:
@@ -279,9 +281,9 @@ static int sq_overhead(enum ib_qp_type qp_type)
 
 	case IB_QPT_UC:
 		size += sizeof(struct mlx5_wqe_ctrl_seg) +
-			sizeof(struct mlx5_wqe_raddr_seg) +
-			sizeof(struct mlx5_wqe_umr_ctrl_seg) +
-			sizeof(struct mlx5_mkey_seg);
+			max(sizeof(struct mlx5_wqe_raddr_seg),
+			    sizeof(struct mlx5_wqe_umr_ctrl_seg) +
+			    sizeof(struct mlx5_mkey_seg));
 		break;
 
 	case IB_QPT_UD:
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma.h b/drivers/infiniband/hw/ocrdma/ocrdma.h
index 040bb8b..12503f1 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma.h
@@ -323,9 +323,6 @@ struct ocrdma_cq {
 			 */
 	u32 max_hw_cqe;
 	bool phase_change;
-	bool deferred_arm, deferred_sol;
-	bool first_arm;
-
 	spinlock_t cq_lock ____cacheline_aligned; /* provide synchronization
 						   * to cq polling
 						   */
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
index 5738493..f387430 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -228,6 +228,11 @@ static int ocrdma_alloc_resources(struct ocrdma_dev *dev)
 
 	ocrdma_alloc_pd_pool(dev);
 
+	if (!ocrdma_alloc_stats_resources(dev)) {
+		pr_err("%s: stats resource allocation failed\n", __func__);
+		goto alloc_err;
+	}
+
 	spin_lock_init(&dev->av_tbl.lock);
 	spin_lock_init(&dev->flush_q_lock);
 	return 0;
@@ -238,6 +243,7 @@ alloc_err:
 
 static void ocrdma_free_resources(struct ocrdma_dev *dev)
 {
+	ocrdma_release_stats_resources(dev);
 	kfree(dev->stag_arr);
 	kfree(dev->qp_tbl);
 	kfree(dev->cq_tbl);
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_stats.c b/drivers/infiniband/hw/ocrdma/ocrdma_stats.c
index 86c303a..255f774 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_stats.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_stats.c
@@ -64,10 +64,11 @@ static int ocrdma_add_stat(char *start, char *pcur,
 	return cpy_len;
 }
 
-static bool ocrdma_alloc_stats_mem(struct ocrdma_dev *dev)
+bool ocrdma_alloc_stats_resources(struct ocrdma_dev *dev)
 {
 	struct stats_mem *mem = &dev->stats_mem;
 
+	mutex_init(&dev->stats_lock);
 	/* Alloc mbox command mem*/
 	mem->size = max_t(u32, sizeof(struct ocrdma_rdma_stats_req),
 			sizeof(struct ocrdma_rdma_stats_resp));
@@ -91,13 +92,14 @@ static bool ocrdma_alloc_stats_mem(struct ocrdma_dev *dev)
 	return true;
 }
 
-static void ocrdma_release_stats_mem(struct ocrdma_dev *dev)
+void ocrdma_release_stats_resources(struct ocrdma_dev *dev)
 {
 	struct stats_mem *mem = &dev->stats_mem;
 
 	if (mem->va)
 		dma_free_coherent(&dev->nic_info.pdev->dev, mem->size,
 				  mem->va, mem->pa);
+	mem->va = NULL;
 	kfree(mem->debugfs_mem);
 }
 
@@ -838,15 +840,9 @@ void ocrdma_add_port_stats(struct ocrdma_dev *dev)
 				&dev->reset_stats, &ocrdma_dbg_ops))
 		goto err;
 
-	/* Now create dma_mem for stats mbx command */
-	if (!ocrdma_alloc_stats_mem(dev))
-		goto err;
-
-	mutex_init(&dev->stats_lock);
 
 	return;
 err:
-	ocrdma_release_stats_mem(dev);
 	debugfs_remove_recursive(dev->dir);
 	dev->dir = NULL;
 }
@@ -855,9 +851,7 @@ void ocrdma_rem_port_stats(struct ocrdma_dev *dev)
 {
 	if (!dev->dir)
 		return;
-	debugfs_remove(dev->dir);
-	mutex_destroy(&dev->stats_lock);
-	ocrdma_release_stats_mem(dev);
+	debugfs_remove_recursive(dev->dir);
 }
 
 void ocrdma_init_debugfs(void)
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_stats.h b/drivers/infiniband/hw/ocrdma/ocrdma_stats.h
index c9e58d0..bba1fec 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_stats.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_stats.h
@@ -65,6 +65,8 @@ enum OCRDMA_STATS_TYPE {
 
 void ocrdma_rem_debugfs(void);
 void ocrdma_init_debugfs(void);
+bool ocrdma_alloc_stats_resources(struct ocrdma_dev *dev);
+void ocrdma_release_stats_resources(struct ocrdma_dev *dev);
 void ocrdma_rem_port_stats(struct ocrdma_dev *dev);
 void ocrdma_add_port_stats(struct ocrdma_dev *dev);
 int ocrdma_pma_counters(struct ocrdma_dev *dev,
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index d4c687b..12420e4 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -125,8 +125,8 @@ int ocrdma_query_device(struct ib_device *ibdev, struct ib_device_attr *attr,
 					IB_DEVICE_SYS_IMAGE_GUID |
 					IB_DEVICE_LOCAL_DMA_LKEY |
 					IB_DEVICE_MEM_MGT_EXTENSIONS;
-	attr->max_sge = min(dev->attr.max_send_sge, dev->attr.max_srq_sge);
-	attr->max_sge_rd = 0;
+	attr->max_sge = dev->attr.max_send_sge;
+	attr->max_sge_rd = attr->max_sge;
 	attr->max_cq = dev->attr.max_cq;
 	attr->max_cqe = dev->attr.max_cqe;
 	attr->max_mr = dev->attr.max_mr;
@@ -1094,7 +1094,6 @@ struct ib_cq *ocrdma_create_cq(struct ib_device *ibdev,
 	spin_lock_init(&cq->comp_handler_lock);
 	INIT_LIST_HEAD(&cq->sq_head);
 	INIT_LIST_HEAD(&cq->rq_head);
-	cq->first_arm = true;
 
 	if (ib_ctx) {
 		uctx = get_ocrdma_ucontext(ib_ctx);
@@ -2726,8 +2725,7 @@ static int ocrdma_update_ud_rcqe(struct ib_wc *ibwc, struct ocrdma_cqe *cqe)
 		OCRDMA_CQE_UD_STATUS_MASK) >> OCRDMA_CQE_UD_STATUS_SHIFT;
 	ibwc->src_qp = le32_to_cpu(cqe->flags_status_srcqpn) &
 						OCRDMA_CQE_SRCQP_MASK;
-	ibwc->pkey_index = le32_to_cpu(cqe->ud.rxlen_pkey) &
-						OCRDMA_CQE_PKEY_MASK;
+	ibwc->pkey_index = 0;
 	ibwc->wc_flags = IB_WC_GRH;
 	ibwc->byte_len = (le32_to_cpu(cqe->ud.rxlen_pkey) >>
 					OCRDMA_CQE_UD_XFER_LEN_SHIFT);
@@ -2911,12 +2909,9 @@ expand_cqe:
 	}
 stop_cqe:
 	cq->getp = cur_getp;
-	if (cq->deferred_arm || polled_hw_cqes) {
-		ocrdma_ring_cq_db(dev, cq->id, cq->deferred_arm,
-				  cq->deferred_sol, polled_hw_cqes);
-		cq->deferred_arm = false;
-		cq->deferred_sol = false;
-	}
+
+	if (polled_hw_cqes)
+		ocrdma_ring_cq_db(dev, cq->id, false, false, polled_hw_cqes);
 
 	return i;
 }
@@ -3000,13 +2995,7 @@ int ocrdma_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags cq_flags)
 	if (cq_flags & IB_CQ_SOLICITED)
 		sol_needed = true;
 
-	if (cq->first_arm) {
-		ocrdma_ring_cq_db(dev, cq_id, arm_needed, sol_needed, 0);
-		cq->first_arm = false;
-	}
-
-	cq->deferred_arm = true;
-	cq->deferred_sol = sol_needed;
+	ocrdma_ring_cq_db(dev, cq_id, arm_needed, sol_needed, 0);
 	spin_unlock_irqrestore(&cq->cq_lock, flags);
 
 	return 0;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 5ea0c14..fa9c42f 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -245,8 +245,6 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
 	skb_reset_mac_header(skb);
 	skb_pull(skb, IPOIB_ENCAP_LEN);
 
-	skb->truesize = SKB_TRUESIZE(skb->len);
-
 	++dev->stats.rx_packets;
 	dev->stats.rx_bytes += skb->len;
 
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 050dfa1..2588931 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -456,7 +456,10 @@ out_locked:
 	return status;
 }
 
-static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast)
+/*
+ * Caller must hold 'priv->lock'
+ */
+static int ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 	struct ib_sa_multicast *multicast;
@@ -466,6 +469,10 @@ static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast)
 	ib_sa_comp_mask comp_mask;
 	int ret = 0;
 
+	if (!priv->broadcast ||
+	    !test_bit(IPOIB_FLAG_OPER_UP, &priv->flags))
+		return -EINVAL;
+
 	ipoib_dbg_mcast(priv, "joining MGID %pI6\n", mcast->mcmember.mgid.raw);
 
 	rec.mgid     = mcast->mcmember.mgid;
@@ -525,20 +532,23 @@ static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast)
 			rec.join_state = 4;
 #endif
 	}
+	spin_unlock_irq(&priv->lock);
 
 	multicast = ib_sa_join_multicast(&ipoib_sa_client, priv->ca, priv->port,
 					 &rec, comp_mask, GFP_KERNEL,
 					 ipoib_mcast_join_complete, mcast);
+	spin_lock_irq(&priv->lock);
 	if (IS_ERR(multicast)) {
 		ret = PTR_ERR(multicast);
 		ipoib_warn(priv, "ib_sa_join_multicast failed, status %d\n", ret);
-		spin_lock_irq(&priv->lock);
 		/* Requeue this join task with a backoff delay */
 		__ipoib_mcast_schedule_join_thread(priv, mcast, 1);
 		clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
 		spin_unlock_irq(&priv->lock);
 		complete(&mcast->done);
+		spin_lock_irq(&priv->lock);
 	}
+	return 0;
 }
 
 void ipoib_mcast_join_task(struct work_struct *work)
@@ -620,9 +630,10 @@ void ipoib_mcast_join_task(struct work_struct *work)
 				/* Found the next unjoined group */
 				init_completion(&mcast->done);
 				set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
-				spin_unlock_irq(&priv->lock);
-				ipoib_mcast_join(dev, mcast);
-				spin_lock_irq(&priv->lock);
+				if (ipoib_mcast_join(dev, mcast)) {
+					spin_unlock_irq(&priv->lock);
+					return;
+				}
 			} else if (!delay_until ||
 				 time_before(mcast->delay_until, delay_until))
 				delay_until = mcast->delay_until;
@@ -641,10 +652,9 @@ out:
 	if (mcast) {
 		init_completion(&mcast->done);
 		set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
+		ipoib_mcast_join(dev, mcast);
 	}
 	spin_unlock_irq(&priv->lock);
-	if (mcast)
-		ipoib_mcast_join(dev, mcast);
 }
 
 int ipoib_mcast_start_thread(struct net_device *dev)
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 6727954..e8a84d1 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -1207,7 +1207,6 @@ static void xpad_led_disconnect(struct usb_xpad *xpad)
 #else
 static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
 static void xpad_led_disconnect(struct usb_xpad *xpad) { }
-static void xpad_identify_controller(struct usb_xpad *xpad) { }
 #endif
 
 static int xpad_start_input(struct usb_xpad *xpad)
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
index 4d446d5..c01a1d6 100644
--- a/drivers/input/keyboard/adp5589-keys.c
+++ b/drivers/input/keyboard/adp5589-keys.c
@@ -235,7 +235,7 @@ struct adp5589_kpad {
 	unsigned short gpimapsize;
 	unsigned extend_cfg;
 	bool is_adp5585;
-	bool adp5585_support_row5;
+	bool support_row5;
 #ifdef CONFIG_GPIOLIB
 	unsigned char gpiomap[ADP5589_MAXGPIO];
 	bool export_gpio;
@@ -485,7 +485,7 @@ static int adp5589_build_gpiomap(struct adp5589_kpad *kpad,
 	if (kpad->extend_cfg & C4_EXTEND_CFG)
 		pin_used[kpad->var->c4_extend_cfg] = true;
 
-	if (!kpad->adp5585_support_row5)
+	if (!kpad->support_row5)
 		pin_used[5] = true;
 
 	for (i = 0; i < kpad->var->maxgpio; i++)
@@ -884,12 +884,13 @@ static int adp5589_probe(struct i2c_client *client,
 
 	switch (id->driver_data) {
 	case ADP5585_02:
-		kpad->adp5585_support_row5 = true;
+		kpad->support_row5 = true;
 	case ADP5585_01:
 		kpad->is_adp5585 = true;
 		kpad->var = &const_adp5585;
 		break;
 	case ADP5589:
+		kpad->support_row5 = true;
 		kpad->var = &const_adp5589;
 		break;
 	}
diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c
index 378db10..4401be2 100644
--- a/drivers/input/keyboard/cap11xx.c
+++ b/drivers/input/keyboard/cap11xx.c
@@ -304,8 +304,10 @@ static int cap11xx_init_leds(struct device *dev,
 		led->cdev.brightness = LED_OFF;
 
 		error = of_property_read_u32(child, "reg", &reg);
-		if (error != 0 || reg >= num_leds)
+		if (error != 0 || reg >= num_leds) {
+			of_node_put(child);
 			return -EINVAL;
+		}
 
 		led->reg = reg;
 		led->priv = priv;
@@ -313,8 +315,10 @@ static int cap11xx_init_leds(struct device *dev,
 		INIT_WORK(&led->work, cap11xx_led_work);
 
 		error = devm_led_classdev_register(dev, &led->cdev);
-		if (error)
+		if (error) {
+			of_node_put(child);
 			return error;
+		}
 
 		priv->num_leds++;
 		led++;
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index d6d16fa..1f2337a 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -733,7 +733,7 @@ config INPUT_XEN_KBDDEV_FRONTEND
 	  module will be called xen-kbdfront.
 
 config INPUT_SIRFSOC_ONKEY
-	bool "CSR SiRFSoC power on/off/suspend key support"
+	tristate "CSR SiRFSoC power on/off/suspend key support"
 	depends on ARCH_SIRF && OF
 	default y
 	help
diff --git a/drivers/input/misc/sirfsoc-onkey.c b/drivers/input/misc/sirfsoc-onkey.c
index 9d5b89b..ed7237f 100644
--- a/drivers/input/misc/sirfsoc-onkey.c
+++ b/drivers/input/misc/sirfsoc-onkey.c
@@ -101,7 +101,7 @@ static void sirfsoc_pwrc_close(struct input_dev *input)
 static const struct of_device_id sirfsoc_pwrc_of_match[] = {
 	{ .compatible = "sirf,prima2-pwrc" },
 	{},
-}
+};
 MODULE_DEVICE_TABLE(of, sirfsoc_pwrc_of_match);
 
 static int sirfsoc_pwrc_probe(struct platform_device *pdev)
diff --git a/drivers/input/mouse/vmmouse.c b/drivers/input/mouse/vmmouse.c
index e272f06..a3f0f5a 100644
--- a/drivers/input/mouse/vmmouse.c
+++ b/drivers/input/mouse/vmmouse.c
@@ -458,8 +458,6 @@ int vmmouse_init(struct psmouse *psmouse)
 	priv->abs_dev = abs_dev;
 	psmouse->private = priv;
 
-	input_set_capability(rel_dev, EV_REL, REL_WHEEL);
-
 	/* Set up and register absolute device */
 	snprintf(priv->phys, sizeof(priv->phys), "%s/input1",
 		 psmouse->ps2dev.serio->phys);
@@ -475,10 +473,6 @@ int vmmouse_init(struct psmouse *psmouse)
 	abs_dev->id.version = psmouse->model;
 	abs_dev->dev.parent = &psmouse->ps2dev.serio->dev;
 
-	error = input_register_device(priv->abs_dev);
-	if (error)
-		goto init_fail;
-
 	/* Set absolute device capabilities */
 	input_set_capability(abs_dev, EV_KEY, BTN_LEFT);
 	input_set_capability(abs_dev, EV_KEY, BTN_RIGHT);
@@ -488,6 +482,13 @@ int vmmouse_init(struct psmouse *psmouse)
 	input_set_abs_params(abs_dev, ABS_X, 0, VMMOUSE_MAX_X, 0, 0);
 	input_set_abs_params(abs_dev, ABS_Y, 0, VMMOUSE_MAX_Y, 0, 0);
 
+	error = input_register_device(priv->abs_dev);
+	if (error)
+		goto init_fail;
+
+	/* Add wheel capability to the relative device */
+	input_set_capability(rel_dev, EV_REL, REL_WHEEL);
+
 	psmouse->protocol_handler = vmmouse_process_byte;
 	psmouse->disconnect = vmmouse_disconnect;
 	psmouse->reconnect = vmmouse_reconnect;
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 8f82897..1ca7f55 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -134,7 +134,7 @@ static void serio_find_driver(struct serio *serio)
 	int error;
 
 	error = device_attach(&serio->dev);
-	if (error < 0)
+	if (error < 0 && error != -EPROBE_DEFER)
 		dev_warn(&serio->dev,
 			 "device_attach() failed for %s (%s), error: %d\n",
 			 serio->phys, serio->name, error);
diff --git a/drivers/input/touchscreen/colibri-vf50-ts.c b/drivers/input/touchscreen/colibri-vf50-ts.c
index 5d4903a..69828d0 100644
--- a/drivers/input/touchscreen/colibri-vf50-ts.c
+++ b/drivers/input/touchscreen/colibri-vf50-ts.c
@@ -21,6 +21,7 @@
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 0b0f8c1..23fbe38 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -822,16 +822,22 @@ static void edt_ft5x06_ts_get_defaults(struct device *dev,
 	int error;
 
 	error = device_property_read_u32(dev, "threshold", &val);
-	if (!error)
-		reg_addr->reg_threshold = val;
+	if (!error) {
+		edt_ft5x06_register_write(tsdata, reg_addr->reg_threshold, val);
+		tsdata->threshold = val;
+	}
 
 	error = device_property_read_u32(dev, "gain", &val);
-	if (!error)
-		reg_addr->reg_gain = val;
+	if (!error) {
+		edt_ft5x06_register_write(tsdata, reg_addr->reg_gain, val);
+		tsdata->gain = val;
+	}
 
 	error = device_property_read_u32(dev, "offset", &val);
-	if (!error)
-		reg_addr->reg_offset = val;
+	if (!error) {
+		edt_ft5x06_register_write(tsdata, reg_addr->reg_offset, val);
+		tsdata->offset = val;
+	}
 }
 
 static void
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 62a400c..fb092f3 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -1353,7 +1353,7 @@ void dmar_disable_qi(struct intel_iommu *iommu)
 
 	raw_spin_lock_irqsave(&iommu->register_lock, flags);
 
-	sts =  dmar_readq(iommu->reg + DMAR_GSTS_REG);
+	sts =  readl(iommu->reg + DMAR_GSTS_REG);
 	if (!(sts & DMA_GSTS_QIES))
 		goto end;
 
diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c
index 5046483..d9939fa 100644
--- a/drivers/iommu/intel-svm.c
+++ b/drivers/iommu/intel-svm.c
@@ -249,12 +249,30 @@ static void intel_flush_pasid_dev(struct intel_svm *svm, struct intel_svm_dev *s
 static void intel_mm_release(struct mmu_notifier *mn, struct mm_struct *mm)
 {
 	struct intel_svm *svm = container_of(mn, struct intel_svm, notifier);
+	struct intel_svm_dev *sdev;
 
+	/* This might end up being called from exit_mmap(), *before* the page
+	 * tables are cleared. And __mmu_notifier_release() will delete us from
+	 * the list of notifiers so that our invalidate_range() callback doesn't
+	 * get called when the page tables are cleared. So we need to protect
+	 * against hardware accessing those page tables.
+	 *
+	 * We do it by clearing the entry in the PASID table and then flushing
+	 * the IOTLB and the PASID table caches. This might upset hardware;
+	 * perhaps we'll want to point the PASID to a dummy PGD (like the zero
+	 * page) so that we end up taking a fault that the hardware really
+	 * *has* to handle gracefully without affecting other processes.
+	 */
 	svm->iommu->pasid_table[svm->pasid].val = 0;
+	wmb();
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(sdev, &svm->devs, list) {
+		intel_flush_pasid_dev(svm, sdev, svm->pasid);
+		intel_flush_svm_range_dev(svm, sdev, 0, -1, 0, !svm->mm);
+	}
+	rcu_read_unlock();
 
-	/* There's no need to do any flush because we can't get here if there
-	 * are any devices left anyway. */
-	WARN_ON(!list_empty(&svm->devs));
 }
 
 static const struct mmu_notifier_ops intel_mmuops = {
@@ -379,7 +397,6 @@ int intel_svm_bind_mm(struct device *dev, int *pasid, int flags, struct svm_dev_
 				goto out;
 			}
 			iommu->pasid_table[svm->pasid].val = (u64)__pa(mm->pgd) | 1;
-			mm = NULL;
 		} else
 			iommu->pasid_table[svm->pasid].val = (u64)__pa(init_mm.pgd) | 1 | (1ULL << 11);
 		wmb();
@@ -442,11 +459,11 @@ int intel_svm_unbind_mm(struct device *dev, int pasid)
 				kfree_rcu(sdev, rcu);
 
 				if (list_empty(&svm->devs)) {
-					mmu_notifier_unregister(&svm->notifier, svm->mm);
 
 					idr_remove(&svm->iommu->pasid_idr, svm->pasid);
 					if (svm->mm)
-						mmput(svm->mm);
+						mmu_notifier_unregister(&svm->notifier, svm->mm);
+
 					/* We mandate that no page faults may be outstanding
 					 * for the PASID when intel_svm_unbind_mm() is called.
 					 * If that is not obeyed, subtle errors will happen.
@@ -507,6 +524,10 @@ static irqreturn_t prq_event_thread(int irq, void *d)
 	struct intel_svm *svm = NULL;
 	int head, tail, handled = 0;
 
+	/* Clear PPR bit before reading head/tail registers, to
+	 * ensure that we get a new interrupt if needed. */
+	writel(DMA_PRS_PPR, iommu->reg + DMAR_PRS_REG);
+
 	tail = dmar_readq(iommu->reg + DMAR_PQT_REG) & PRQ_RING_MASK;
 	head = dmar_readq(iommu->reg + DMAR_PQH_REG) & PRQ_RING_MASK;
 	while (head != tail) {
@@ -551,6 +572,9 @@ static irqreturn_t prq_event_thread(int irq, void *d)
 		 * any faults on kernel addresses. */
 		if (!svm->mm)
 			goto bad_req;
+		/* If the mm is already defunct, don't handle faults. */
+		if (!atomic_inc_not_zero(&svm->mm->mm_users))
+			goto bad_req;
 		down_read(&svm->mm->mmap_sem);
 		vma = find_extend_vma(svm->mm, address);
 		if (!vma || address < vma->vm_start)
@@ -567,6 +591,7 @@ static irqreturn_t prq_event_thread(int irq, void *d)
 		result = QI_RESP_SUCCESS;
 	invalid:
 		up_read(&svm->mm->mmap_sem);
+		mmput(svm->mm);
 	bad_req:
 		/* Accounting for major/minor faults? */
 		rcu_read_lock();
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index c12ba45..ac59692 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -629,7 +629,7 @@ static void iommu_disable_irq_remapping(struct intel_iommu *iommu)
 
 	raw_spin_lock_irqsave(&iommu->register_lock, flags);
 
-	sts = dmar_readq(iommu->reg + DMAR_GSTS_REG);
+	sts = readl(iommu->reg + DMAR_GSTS_REG);
 	if (!(sts & DMA_GSTS_IRES))
 		goto end;
 
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 3447549..43dfd15 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -66,7 +66,10 @@ struct its_node {
 	unsigned long		phys_base;
 	struct its_cmd_block	*cmd_base;
 	struct its_cmd_block	*cmd_write;
-	void			*tables[GITS_BASER_NR_REGS];
+	struct {
+		void		*base;
+		u32		order;
+	} tables[GITS_BASER_NR_REGS];
 	struct its_collection	*collections;
 	struct list_head	its_device_list;
 	u64			flags;
@@ -75,6 +78,9 @@ struct its_node {
 
 #define ITS_ITT_ALIGN		SZ_256
 
+/* Convert page order to size in bytes */
+#define PAGE_ORDER_TO_SIZE(o)	(PAGE_SIZE << (o))
+
 struct event_lpi_map {
 	unsigned long		*lpi_map;
 	u16			*col_map;
@@ -597,11 +603,6 @@ static void its_unmask_irq(struct irq_data *d)
 	lpi_set_config(d, true);
 }
 
-static void its_eoi_irq(struct irq_data *d)
-{
-	gic_write_eoir(d->hwirq);
-}
-
 static int its_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
 			    bool force)
 {
@@ -638,7 +639,7 @@ static struct irq_chip its_irq_chip = {
 	.name			= "ITS",
 	.irq_mask		= its_mask_irq,
 	.irq_unmask		= its_unmask_irq,
-	.irq_eoi		= its_eoi_irq,
+	.irq_eoi		= irq_chip_eoi_parent,
 	.irq_set_affinity	= its_set_affinity,
 	.irq_compose_msi_msg	= its_irq_compose_msi_msg,
 };
@@ -807,9 +808,10 @@ static void its_free_tables(struct its_node *its)
 	int i;
 
 	for (i = 0; i < GITS_BASER_NR_REGS; i++) {
-		if (its->tables[i]) {
-			free_page((unsigned long)its->tables[i]);
-			its->tables[i] = NULL;
+		if (its->tables[i].base) {
+			free_pages((unsigned long)its->tables[i].base,
+				   its->tables[i].order);
+			its->tables[i].base = NULL;
 		}
 	}
 }
@@ -842,7 +844,6 @@ static int its_alloc_tables(const char *node_name, struct its_node *its)
 		u64 type = GITS_BASER_TYPE(val);
 		u64 entry_size = GITS_BASER_ENTRY_SIZE(val);
 		int order = get_order(psz);
-		int alloc_size;
 		int alloc_pages;
 		u64 tmp;
 		void *base;
@@ -874,9 +875,8 @@ static int its_alloc_tables(const char *node_name, struct its_node *its)
 			}
 		}
 
-		alloc_size = (1 << order) * PAGE_SIZE;
 retry_alloc_baser:
-		alloc_pages = (alloc_size / psz);
+		alloc_pages = (PAGE_ORDER_TO_SIZE(order) / psz);
 		if (alloc_pages > GITS_BASER_PAGES_MAX) {
 			alloc_pages = GITS_BASER_PAGES_MAX;
 			order = get_order(GITS_BASER_PAGES_MAX * psz);
@@ -890,7 +890,8 @@ retry_alloc_baser:
 			goto out_free;
 		}
 
-		its->tables[i] = base;
+		its->tables[i].base = base;
+		its->tables[i].order = order;
 
 retry_baser:
 		val = (virt_to_phys(base) 				 |
@@ -928,7 +929,7 @@ retry_baser:
 			shr = tmp & GITS_BASER_SHAREABILITY_MASK;
 			if (!shr) {
 				cache = GITS_BASER_nC;
-				__flush_dcache_area(base, alloc_size);
+				__flush_dcache_area(base, PAGE_ORDER_TO_SIZE(order));
 			}
 			goto retry_baser;
 		}
@@ -940,7 +941,7 @@ retry_baser:
 			 * something is horribly wrong...
 			 */
 			free_pages((unsigned long)base, order);
-			its->tables[i] = NULL;
+			its->tables[i].base = NULL;
 
 			switch (psz) {
 			case SZ_16K:
@@ -961,7 +962,7 @@ retry_baser:
 		}
 
 		pr_info("ITS: allocated %d %s @%lx (psz %dK, shr %d)\n",
-			(int)(alloc_size / entry_size),
+			(int)(PAGE_ORDER_TO_SIZE(order) / entry_size),
 			its_base_type_string[type],
 			(unsigned long)virt_to_phys(base),
 			psz / SZ_1K, (int)shr >> GITS_BASER_SHAREABILITY_SHIFT);
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 911758c..8f9ebf7 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -384,9 +384,6 @@ static struct irq_chip gic_chip = {
 	.irq_unmask		= gic_unmask_irq,
 	.irq_eoi		= gic_eoi_irq,
 	.irq_set_type		= gic_set_type,
-#ifdef CONFIG_SMP
-	.irq_set_affinity	= gic_set_affinity,
-#endif
 	.irq_get_irqchip_state	= gic_irq_get_irqchip_state,
 	.irq_set_irqchip_state	= gic_irq_set_irqchip_state,
 	.flags			= IRQCHIP_SET_TYPE_MASKED |
@@ -400,9 +397,6 @@ static struct irq_chip gic_eoimode1_chip = {
 	.irq_unmask		= gic_unmask_irq,
 	.irq_eoi		= gic_eoimode1_eoi_irq,
 	.irq_set_type		= gic_set_type,
-#ifdef CONFIG_SMP
-	.irq_set_affinity	= gic_set_affinity,
-#endif
 	.irq_get_irqchip_state	= gic_irq_get_irqchip_state,
 	.irq_set_irqchip_state	= gic_irq_set_irqchip_state,
 	.irq_set_vcpu_affinity	= gic_irq_set_vcpu_affinity,
@@ -443,7 +437,7 @@ static void gic_cpu_if_up(struct gic_chip_data *gic)
 	u32 bypass = 0;
 	u32 mode = 0;
 
-	if (static_key_true(&supports_deactivate))
+	if (gic == &gic_data[0] && static_key_true(&supports_deactivate))
 		mode = GIC_CPU_CTRL_EOImodeNS;
 
 	/*
@@ -1039,6 +1033,11 @@ static void __init __gic_init_bases(unsigned int gic_nr, int irq_start,
 		gic->chip.name = kasprintf(GFP_KERNEL, "GIC-%d", gic_nr);
 	}
 
+#ifdef CONFIG_SMP
+	if (gic_nr == 0)
+		gic->chip.irq_set_affinity = gic_set_affinity;
+#endif
+
 #ifdef CONFIG_GIC_NON_BANKED
 	if (percpu_offset) { /* Frankein-GIC without banked registers... */
 		unsigned int cpu;
diff --git a/drivers/irqchip/irq-sun4i.c b/drivers/irqchip/irq-sun4i.c
index 0704362..376b280 100644
--- a/drivers/irqchip/irq-sun4i.c
+++ b/drivers/irqchip/irq-sun4i.c
@@ -22,7 +22,6 @@
 #include <linux/of_irq.h>
 
 #include <asm/exception.h>
-#include <asm/mach/irq.h>
 
 #define SUN4I_IRQ_VECTOR_REG		0x00
 #define SUN4I_IRQ_PROTECTION_REG	0x08
diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
index 2a506fe..d1f8ab9 100644
--- a/drivers/isdn/gigaset/ser-gigaset.c
+++ b/drivers/isdn/gigaset/ser-gigaset.c
@@ -373,13 +373,7 @@ static void gigaset_freecshw(struct cardstate *cs)
 
 static void gigaset_device_release(struct device *dev)
 {
-	struct cardstate *cs = dev_get_drvdata(dev);
-
-	if (!cs)
-		return;
-	dev_set_drvdata(dev, NULL);
-	kfree(cs->hw.ser);
-	cs->hw.ser = NULL;
+	kfree(container_of(dev, struct ser_cardstate, dev.dev));
 }
 
 /*
@@ -408,7 +402,6 @@ static int gigaset_initcshw(struct cardstate *cs)
 		cs->hw.ser = NULL;
 		return rc;
 	}
-	dev_set_drvdata(&cs->hw.ser->dev.dev, cs);
 
 	tasklet_init(&cs->write_tasklet,
 		     gigaset_modem_fill, (unsigned long) cs);
diff --git a/drivers/isdn/hardware/mISDN/netjet.c b/drivers/isdn/hardware/mISDN/netjet.c
index 8e29447..afde4ed 100644
--- a/drivers/isdn/hardware/mISDN/netjet.c
+++ b/drivers/isdn/hardware/mISDN/netjet.c
@@ -392,7 +392,7 @@ read_dma(struct tiger_ch *bc, u32 idx, int cnt)
 	}
 	stat = bchannel_get_rxbuf(&bc->bch, cnt);
 	/* only transparent use the count here, HDLC overun is detected later */
-	if (stat == ENOMEM) {
+	if (stat == -ENOMEM) {
 		pr_warning("%s.B%d: No memory for %d bytes\n",
 			   card->name, bc->bch.nr, cnt);
 		return;
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 33224cb..9f6acd5 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -572,11 +572,13 @@ int nvm_register(struct request_queue *q, char *disk_name,
 		}
 	}
 
-	ret = nvm_get_sysblock(dev, &dev->sb);
-	if (!ret)
-		pr_err("nvm: device not initialized.\n");
-	else if (ret < 0)
-		pr_err("nvm: err (%d) on device initialization\n", ret);
+	if (dev->identity.cap & NVM_ID_DCAP_BBLKMGMT) {
+		ret = nvm_get_sysblock(dev, &dev->sb);
+		if (!ret)
+			pr_err("nvm: device not initialized.\n");
+		else if (ret < 0)
+			pr_err("nvm: err (%d) on device initialization\n", ret);
+	}
 
 	/* register device with a supported media manager */
 	down_write(&nvm_lock);
@@ -1055,9 +1057,11 @@ static long __nvm_ioctl_dev_init(struct nvm_ioctl_dev_init *init)
 	strncpy(info.mmtype, init->mmtype, NVM_MMTYPE_LEN);
 	info.fs_ppa.ppa = -1;
 
-	ret = nvm_init_sysblock(dev, &info);
-	if (ret)
-		return ret;
+	if (dev->identity.cap & NVM_ID_DCAP_BBLKMGMT) {
+		ret = nvm_init_sysblock(dev, &info);
+		if (ret)
+			return ret;
+	}
 
 	memcpy(&dev->sb, &info, sizeof(struct nvm_sb_info));
 
@@ -1117,7 +1121,10 @@ static long nvm_ioctl_dev_factory(struct file *file, void __user *arg)
 		dev->mt = NULL;
 	}
 
-	return nvm_dev_factory(dev, fact.flags);
+	if (dev->identity.cap & NVM_ID_DCAP_BBLKMGMT)
+		return nvm_dev_factory(dev, fact.flags);
+
+	return 0;
 }
 
 static long nvm_ctl_ioctl(struct file *file, uint cmd, unsigned long arg)
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index d8c7595..307db1e 100644
--- a/drivers/lightnvm/rrpc.c
+++ b/drivers/lightnvm/rrpc.c
@@ -300,8 +300,10 @@ static int rrpc_move_valid_pages(struct rrpc *rrpc, struct rrpc_block *rblk)
 	}
 
 	page = mempool_alloc(rrpc->page_pool, GFP_NOIO);
-	if (!page)
+	if (!page) {
+		bio_put(bio);
 		return -ENOMEM;
+	}
 
 	while ((slot = find_first_zero_bit(rblk->invalid_pages,
 					    nr_pgs_per_blk)) < nr_pgs_per_blk) {
diff --git a/drivers/lightnvm/rrpc.h b/drivers/lightnvm/rrpc.h
index ef13ac7..f7b3733 100644
--- a/drivers/lightnvm/rrpc.h
+++ b/drivers/lightnvm/rrpc.h
@@ -174,8 +174,7 @@ static inline sector_t rrpc_get_sector(sector_t laddr)
 static inline int request_intersects(struct rrpc_inflight_rq *r,
 				sector_t laddr_start, sector_t laddr_end)
 {
-	return (laddr_end >= r->l_start && laddr_end <= r->l_end) &&
-		(laddr_start >= r->l_start && laddr_start <= r->l_end);
+	return (laddr_end >= r->l_start) && (laddr_start <= r->l_end);
 }
 
 static int __rrpc_lock_laddr(struct rrpc *rrpc, sector_t laddr,
@@ -184,6 +183,8 @@ static int __rrpc_lock_laddr(struct rrpc *rrpc, sector_t laddr,
 	sector_t laddr_end = laddr + pages - 1;
 	struct rrpc_inflight_rq *rtmp;
 
+	WARN_ON(irqs_disabled());
+
 	spin_lock_irq(&rrpc->inflights.lock);
 	list_for_each_entry(rtmp, &rrpc->inflights.reqs, list) {
 		if (unlikely(request_intersects(rtmp, laddr, laddr_end))) {
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 5df4048..dd83492 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1191,6 +1191,8 @@ static void dm_unprep_request(struct request *rq)
 
 	if (clone)
 		free_rq_clone(clone);
+	else if (!tio->md->queue->mq_ops)
+		free_rq_tio(tio);
 }
 
 /*
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index e6e4bac..12099b0 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -2048,6 +2048,7 @@ int db8500_prcmu_config_hotmon(u8 low, u8 high)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(db8500_prcmu_config_hotmon);
 
 static int config_hot_period(u16 val)
 {
@@ -2074,11 +2075,13 @@ int db8500_prcmu_start_temp_sense(u16 cycles32k)
 
 	return config_hot_period(cycles32k);
 }
+EXPORT_SYMBOL_GPL(db8500_prcmu_start_temp_sense);
 
 int db8500_prcmu_stop_temp_sense(void)
 {
 	return config_hot_period(0xFFFF);
 }
+EXPORT_SYMBOL_GPL(db8500_prcmu_stop_temp_sense);
 
 static int prcmu_a9wdog(u8 cmd, u8 d0, u8 d1, u8 d2, u8 d3)
 {
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index f0ba782..a216b46 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -440,7 +440,7 @@ config ARM_CHARLCD
 	  still useful.
 
 config BMP085
-	bool
+	tristate
 	depends on SYSFS
 
 config BMP085_I2C
@@ -470,7 +470,7 @@ config BMP085_SPI
 config PCH_PHUB
 	tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) PHUB"
 	select GENERIC_NET_UTILS
-	depends on PCI && (X86_32 || COMPILE_TEST)
+	depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
 	help
 	  This driver is for PCH(Platform controller Hub) PHUB(Packet Hub) of
 	  Intel Topcliff which is an IOH(Input/Output Hub) for x86 embedded
diff --git a/drivers/misc/apds990x.c b/drivers/misc/apds990x.c
index a3e789b..dfb72ec 100644
--- a/drivers/misc/apds990x.c
+++ b/drivers/misc/apds990x.c
@@ -1215,7 +1215,7 @@ static int apds990x_remove(struct i2c_client *client)
 #ifdef CONFIG_PM_SLEEP
 static int apds990x_suspend(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct apds990x_chip *chip = i2c_get_clientdata(client);
 
 	apds990x_chip_off(chip);
@@ -1224,7 +1224,7 @@ static int apds990x_suspend(struct device *dev)
 
 static int apds990x_resume(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct apds990x_chip *chip = i2c_get_clientdata(client);
 
 	/*
@@ -1240,7 +1240,7 @@ static int apds990x_resume(struct device *dev)
 #ifdef CONFIG_PM
 static int apds990x_runtime_suspend(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct apds990x_chip *chip = i2c_get_clientdata(client);
 
 	apds990x_chip_off(chip);
@@ -1249,7 +1249,7 @@ static int apds990x_runtime_suspend(struct device *dev)
 
 static int apds990x_runtime_resume(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct apds990x_chip *chip = i2c_get_clientdata(client);
 
 	apds990x_chip_on(chip);
diff --git a/drivers/misc/arm-charlcd.c b/drivers/misc/arm-charlcd.c
index c65b5ea..b3176ee 100644
--- a/drivers/misc/arm-charlcd.c
+++ b/drivers/misc/arm-charlcd.c
@@ -8,7 +8,6 @@
  * Author: Linus Walleij <triad@df.lth.se>
  */
 #include <linux/init.h>
-#include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/of.h>
@@ -328,20 +327,6 @@ out_no_resource:
 	return ret;
 }
 
-static int __exit charlcd_remove(struct platform_device *pdev)
-{
-	struct charlcd *lcd = platform_get_drvdata(pdev);
-
-	if (lcd) {
-		free_irq(lcd->irq, lcd);
-		iounmap(lcd->virtbase);
-		release_mem_region(lcd->phybase, lcd->physize);
-		kfree(lcd);
-	}
-
-	return 0;
-}
-
 static int charlcd_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -376,13 +361,8 @@ static struct platform_driver charlcd_driver = {
 	.driver = {
 		.name = DRIVERNAME,
 		.pm = &charlcd_pm_ops,
+		.suppress_bind_attrs = true,
 		.of_match_table = of_match_ptr(charlcd_match),
 	},
-	.remove = __exit_p(charlcd_remove),
 };
-
-module_platform_driver_probe(charlcd_driver, charlcd_probe);
-
-MODULE_AUTHOR("Linus Walleij <triad@df.lth.se>");
-MODULE_DESCRIPTION("ARM Character LCD Driver");
-MODULE_LICENSE("GPL v2");
+builtin_platform_driver_probe(charlcd_driver, charlcd_probe);
diff --git a/drivers/misc/bh1770glc.c b/drivers/misc/bh1770glc.c
index 753d7ec..845466e 100644
--- a/drivers/misc/bh1770glc.c
+++ b/drivers/misc/bh1770glc.c
@@ -1323,7 +1323,7 @@ static int bh1770_remove(struct i2c_client *client)
 #ifdef CONFIG_PM_SLEEP
 static int bh1770_suspend(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct bh1770_chip *chip = i2c_get_clientdata(client);
 
 	bh1770_chip_off(chip);
@@ -1333,7 +1333,7 @@ static int bh1770_suspend(struct device *dev)
 
 static int bh1770_resume(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct bh1770_chip *chip = i2c_get_clientdata(client);
 	int ret = 0;
 
@@ -1361,7 +1361,7 @@ static int bh1770_resume(struct device *dev)
 #ifdef CONFIG_PM
 static int bh1770_runtime_suspend(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct bh1770_chip *chip = i2c_get_clientdata(client);
 
 	bh1770_chip_off(chip);
@@ -1371,7 +1371,7 @@ static int bh1770_runtime_suspend(struct device *dev)
 
 static int bh1770_runtime_resume(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct bh1770_chip *chip = i2c_get_clientdata(client);
 
 	bh1770_chip_on(chip);
diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c
index cc8645b..1922cb8 100644
--- a/drivers/misc/c2port/core.c
+++ b/drivers/misc/c2port/core.c
@@ -721,9 +721,7 @@ static ssize_t c2port_read_flash_data(struct file *filp, struct kobject *kobj,
 				struct bin_attribute *attr,
 				char *buffer, loff_t offset, size_t count)
 {
-	struct c2port_device *c2dev =
-			dev_get_drvdata(container_of(kobj,
-						struct device, kobj));
+	struct c2port_device *c2dev = dev_get_drvdata(kobj_to_dev(kobj));
 	ssize_t ret;
 
 	/* Check the device and flash access status */
@@ -838,9 +836,7 @@ static ssize_t c2port_write_flash_data(struct file *filp, struct kobject *kobj,
 				struct bin_attribute *attr,
 				char *buffer, loff_t offset, size_t count)
 {
-	struct c2port_device *c2dev =
-			dev_get_drvdata(container_of(kobj,
-						struct device, kobj));
+	struct c2port_device *c2dev = dev_get_drvdata(kobj_to_dev(kobj));
 	int ret;
 
 	/* Check the device access status */
diff --git a/drivers/misc/cxl/sysfs.c b/drivers/misc/cxl/sysfs.c
index 02006f71..038af5d 100644
--- a/drivers/misc/cxl/sysfs.c
+++ b/drivers/misc/cxl/sysfs.c
@@ -386,8 +386,7 @@ static ssize_t afu_eb_read(struct file *filp, struct kobject *kobj,
 			       struct bin_attribute *bin_attr, char *buf,
 			       loff_t off, size_t count)
 {
-	struct cxl_afu *afu = to_cxl_afu(container_of(kobj,
-						      struct device, kobj));
+	struct cxl_afu *afu = to_cxl_afu(kobj_to_dev(kobj));
 
 	return cxl_afu_read_err_buffer(afu, buf, off, count);
 }
@@ -467,7 +466,7 @@ static ssize_t afu_read_config(struct file *filp, struct kobject *kobj,
 			       loff_t off, size_t count)
 {
 	struct afu_config_record *cr = to_cr(kobj);
-	struct cxl_afu *afu = to_cxl_afu(container_of(kobj->parent, struct device, kobj));
+	struct cxl_afu *afu = to_cxl_afu(kobj_to_dev(kobj->parent));
 
 	u64 i, j, val;
 
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index 5d7c090..d105c25 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -289,7 +289,7 @@ static ssize_t at24_bin_read(struct file *filp, struct kobject *kobj,
 {
 	struct at24_data *at24;
 
-	at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
+	at24 = dev_get_drvdata(kobj_to_dev(kobj));
 	return at24_read(at24, buf, off, count);
 }
 
@@ -420,7 +420,7 @@ static ssize_t at24_bin_write(struct file *filp, struct kobject *kobj,
 {
 	struct at24_data *at24;
 
-	at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
+	at24 = dev_get_drvdata(kobj_to_dev(kobj));
 	return at24_write(at24, buf, off, count);
 }
 
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index f850ef5..3e9e5a2 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -139,7 +139,7 @@ at25_bin_read(struct file *filp, struct kobject *kobj,
 	struct device		*dev;
 	struct at25_data	*at25;
 
-	dev = container_of(kobj, struct device, kobj);
+	dev = kobj_to_dev(kobj);
 	at25 = dev_get_drvdata(dev);
 
 	return at25_ee_read(at25, buf, off, count);
@@ -273,7 +273,7 @@ at25_bin_write(struct file *filp, struct kobject *kobj,
 	struct device		*dev;
 	struct at25_data	*at25;
 
-	dev = container_of(kobj, struct device, kobj);
+	dev = kobj_to_dev(kobj);
 	at25 = dev_get_drvdata(dev);
 
 	return at25_ee_write(at25, buf, off, count);
diff --git a/drivers/misc/eeprom/eeprom.c b/drivers/misc/eeprom/eeprom.c
index 7342fd6..3d1d551 100644
--- a/drivers/misc/eeprom/eeprom.c
+++ b/drivers/misc/eeprom/eeprom.c
@@ -84,7 +84,7 @@ static ssize_t eeprom_read(struct file *filp, struct kobject *kobj,
 			   struct bin_attribute *bin_attr,
 			   char *buf, loff_t off, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(container_of(kobj, struct device, kobj));
+	struct i2c_client *client = to_i2c_client(kobj_to_dev(kobj));
 	struct eeprom_data *data = i2c_get_clientdata(client);
 	u8 slice;
 
diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c
index ff63f05..f62ab29 100644
--- a/drivers/misc/eeprom/eeprom_93xx46.c
+++ b/drivers/misc/eeprom/eeprom_93xx46.c
@@ -10,9 +10,13 @@
 
 #include <linux/delay.h>
 #include <linux/device.h>
+#include <linux/gpio/consumer.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
 #include <linux/slab.h>
 #include <linux/spi/spi.h>
 #include <linux/sysfs.h>
@@ -25,6 +29,15 @@
 #define ADDR_ERAL	0x20
 #define ADDR_EWEN	0x30
 
+struct eeprom_93xx46_devtype_data {
+	unsigned int quirks;
+};
+
+static const struct eeprom_93xx46_devtype_data atmel_at93c46d_data = {
+	.quirks = EEPROM_93XX46_QUIRK_SINGLE_WORD_READ |
+		  EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH,
+};
+
 struct eeprom_93xx46_dev {
 	struct spi_device *spi;
 	struct eeprom_93xx46_platform_data *pdata;
@@ -33,6 +46,16 @@ struct eeprom_93xx46_dev {
 	int addrlen;
 };
 
+static inline bool has_quirk_single_word_read(struct eeprom_93xx46_dev *edev)
+{
+	return edev->pdata->quirks & EEPROM_93XX46_QUIRK_SINGLE_WORD_READ;
+}
+
+static inline bool has_quirk_instruction_length(struct eeprom_93xx46_dev *edev)
+{
+	return edev->pdata->quirks & EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH;
+}
+
 static ssize_t
 eeprom_93xx46_bin_read(struct file *filp, struct kobject *kobj,
 		       struct bin_attribute *bin_attr,
@@ -40,58 +63,73 @@ eeprom_93xx46_bin_read(struct file *filp, struct kobject *kobj,
 {
 	struct eeprom_93xx46_dev *edev;
 	struct device *dev;
-	struct spi_message m;
-	struct spi_transfer t[2];
-	int bits, ret;
-	u16 cmd_addr;
+	ssize_t ret = 0;
 
-	dev = container_of(kobj, struct device, kobj);
+	dev = kobj_to_dev(kobj);
 	edev = dev_get_drvdata(dev);
 
-	cmd_addr = OP_READ << edev->addrlen;
+	mutex_lock(&edev->lock);
 
-	if (edev->addrlen == 7) {
-		cmd_addr |= off & 0x7f;
-		bits = 10;
-	} else {
-		cmd_addr |= off & 0x3f;
-		bits = 9;
-	}
+	if (edev->pdata->prepare)
+		edev->pdata->prepare(edev);
 
-	dev_dbg(&edev->spi->dev, "read cmd 0x%x, %d Hz\n",
-		cmd_addr, edev->spi->max_speed_hz);
+	while (count) {
+		struct spi_message m;
+		struct spi_transfer t[2] = { { 0 } };
+		u16 cmd_addr = OP_READ << edev->addrlen;
+		size_t nbytes = count;
+		int bits;
+		int err;
+
+		if (edev->addrlen == 7) {
+			cmd_addr |= off & 0x7f;
+			bits = 10;
+			if (has_quirk_single_word_read(edev))
+				nbytes = 1;
+		} else {
+			cmd_addr |= (off >> 1) & 0x3f;
+			bits = 9;
+			if (has_quirk_single_word_read(edev))
+				nbytes = 2;
+		}
 
-	spi_message_init(&m);
-	memset(t, 0, sizeof(t));
+		dev_dbg(&edev->spi->dev, "read cmd 0x%x, %d Hz\n",
+			cmd_addr, edev->spi->max_speed_hz);
 
-	t[0].tx_buf = (char *)&cmd_addr;
-	t[0].len = 2;
-	t[0].bits_per_word = bits;
-	spi_message_add_tail(&t[0], &m);
+		spi_message_init(&m);
 
-	t[1].rx_buf = buf;
-	t[1].len = count;
-	t[1].bits_per_word = 8;
-	spi_message_add_tail(&t[1], &m);
+		t[0].tx_buf = (char *)&cmd_addr;
+		t[0].len = 2;
+		t[0].bits_per_word = bits;
+		spi_message_add_tail(&t[0], &m);
 
-	mutex_lock(&edev->lock);
+		t[1].rx_buf = buf;
+		t[1].len = count;
+		t[1].bits_per_word = 8;
+		spi_message_add_tail(&t[1], &m);
 
-	if (edev->pdata->prepare)
-		edev->pdata->prepare(edev);
+		err = spi_sync(edev->spi, &m);
+		/* have to wait at least Tcsl ns */
+		ndelay(250);
 
-	ret = spi_sync(edev->spi, &m);
-	/* have to wait at least Tcsl ns */
-	ndelay(250);
-	if (ret) {
-		dev_err(&edev->spi->dev, "read %zu bytes at %d: err. %d\n",
-			count, (int)off, ret);
+		if (err) {
+			dev_err(&edev->spi->dev, "read %zu bytes at %d: err. %d\n",
+				nbytes, (int)off, err);
+			ret = err;
+			break;
+		}
+
+		buf += nbytes;
+		off += nbytes;
+		count -= nbytes;
+		ret += nbytes;
 	}
 
 	if (edev->pdata->finish)
 		edev->pdata->finish(edev);
 
 	mutex_unlock(&edev->lock);
-	return ret ? : count;
+	return ret;
 }
 
 static int eeprom_93xx46_ew(struct eeprom_93xx46_dev *edev, int is_on)
@@ -110,7 +148,13 @@ static int eeprom_93xx46_ew(struct eeprom_93xx46_dev *edev, int is_on)
 		bits = 9;
 	}
 
-	dev_dbg(&edev->spi->dev, "ew cmd 0x%04x\n", cmd_addr);
+	if (has_quirk_instruction_length(edev)) {
+		cmd_addr <<= 2;
+		bits += 2;
+	}
+
+	dev_dbg(&edev->spi->dev, "ew%s cmd 0x%04x, %d bits\n",
+			is_on ? "en" : "ds", cmd_addr, bits);
 
 	spi_message_init(&m);
 	memset(&t, 0, sizeof(t));
@@ -155,7 +199,7 @@ eeprom_93xx46_write_word(struct eeprom_93xx46_dev *edev,
 		bits = 10;
 		data_len = 1;
 	} else {
-		cmd_addr |= off & 0x3f;
+		cmd_addr |= (off >> 1) & 0x3f;
 		bits = 9;
 		data_len = 2;
 	}
@@ -190,7 +234,7 @@ eeprom_93xx46_bin_write(struct file *filp, struct kobject *kobj,
 	struct device *dev;
 	int i, ret, step = 1;
 
-	dev = container_of(kobj, struct device, kobj);
+	dev = kobj_to_dev(kobj);
 	edev = dev_get_drvdata(dev);
 
 	/* only write even number of bytes on 16-bit devices */
@@ -245,6 +289,13 @@ static int eeprom_93xx46_eral(struct eeprom_93xx46_dev *edev)
 		bits = 9;
 	}
 
+	if (has_quirk_instruction_length(edev)) {
+		cmd_addr <<= 2;
+		bits += 2;
+	}
+
+	dev_dbg(&edev->spi->dev, "eral cmd 0x%04x, %d bits\n", cmd_addr, bits);
+
 	spi_message_init(&m);
 	memset(&t, 0, sizeof(t));
 
@@ -294,12 +345,100 @@ static ssize_t eeprom_93xx46_store_erase(struct device *dev,
 }
 static DEVICE_ATTR(erase, S_IWUSR, NULL, eeprom_93xx46_store_erase);
 
+static void select_assert(void *context)
+{
+	struct eeprom_93xx46_dev *edev = context;
+
+	gpiod_set_value_cansleep(edev->pdata->select, 1);
+}
+
+static void select_deassert(void *context)
+{
+	struct eeprom_93xx46_dev *edev = context;
+
+	gpiod_set_value_cansleep(edev->pdata->select, 0);
+}
+
+static const struct of_device_id eeprom_93xx46_of_table[] = {
+	{ .compatible = "eeprom-93xx46", },
+	{ .compatible = "atmel,at93c46d", .data = &atmel_at93c46d_data, },
+	{}
+};
+MODULE_DEVICE_TABLE(of, eeprom_93xx46_of_table);
+
+static int eeprom_93xx46_probe_dt(struct spi_device *spi)
+{
+	const struct of_device_id *of_id =
+		of_match_device(eeprom_93xx46_of_table, &spi->dev);
+	struct device_node *np = spi->dev.of_node;
+	struct eeprom_93xx46_platform_data *pd;
+	u32 tmp;
+	int gpio;
+	enum of_gpio_flags of_flags;
+	int ret;
+
+	pd = devm_kzalloc(&spi->dev, sizeof(*pd), GFP_KERNEL);
+	if (!pd)
+		return -ENOMEM;
+
+	ret = of_property_read_u32(np, "data-size", &tmp);
+	if (ret < 0) {
+		dev_err(&spi->dev, "data-size property not found\n");
+		return ret;
+	}
+
+	if (tmp == 8) {
+		pd->flags |= EE_ADDR8;
+	} else if (tmp == 16) {
+		pd->flags |= EE_ADDR16;
+	} else {
+		dev_err(&spi->dev, "invalid data-size (%d)\n", tmp);
+		return -EINVAL;
+	}
+
+	if (of_property_read_bool(np, "read-only"))
+		pd->flags |= EE_READONLY;
+
+	gpio = of_get_named_gpio_flags(np, "select-gpios", 0, &of_flags);
+	if (gpio_is_valid(gpio)) {
+		unsigned long flags =
+			of_flags == OF_GPIO_ACTIVE_LOW ? GPIOF_ACTIVE_LOW : 0;
+
+		ret = devm_gpio_request_one(&spi->dev, gpio, flags,
+					    "eeprom_93xx46_select");
+		if (ret)
+			return ret;
+
+		pd->select = gpio_to_desc(gpio);
+		pd->prepare = select_assert;
+		pd->finish = select_deassert;
+
+		gpiod_direction_output(pd->select, 0);
+	}
+
+	if (of_id->data) {
+		const struct eeprom_93xx46_devtype_data *data = of_id->data;
+
+		pd->quirks = data->quirks;
+	}
+
+	spi->dev.platform_data = pd;
+
+	return 0;
+}
+
 static int eeprom_93xx46_probe(struct spi_device *spi)
 {
 	struct eeprom_93xx46_platform_data *pd;
 	struct eeprom_93xx46_dev *edev;
 	int err;
 
+	if (spi->dev.of_node) {
+		err = eeprom_93xx46_probe_dt(spi);
+		if (err < 0)
+			return err;
+	}
+
 	pd = spi->dev.platform_data;
 	if (!pd) {
 		dev_err(&spi->dev, "missing platform data\n");
@@ -370,6 +509,7 @@ static int eeprom_93xx46_remove(struct spi_device *spi)
 static struct spi_driver eeprom_93xx46_driver = {
 	.driver = {
 		.name	= "93xx46",
+		.of_match_table = of_match_ptr(eeprom_93xx46_of_table),
 	},
 	.probe		= eeprom_93xx46_probe,
 	.remove		= eeprom_93xx46_remove,
diff --git a/drivers/misc/genwqe/card_sysfs.c b/drivers/misc/genwqe/card_sysfs.c
index 6ab31ef..c24c9b7 100644
--- a/drivers/misc/genwqe/card_sysfs.c
+++ b/drivers/misc/genwqe/card_sysfs.c
@@ -278,7 +278,7 @@ static umode_t genwqe_is_visible(struct kobject *kobj,
 				 struct attribute *attr, int n)
 {
 	unsigned int j;
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct genwqe_dev *cd = dev_get_drvdata(dev);
 	umode_t mode = attr->mode;
 
diff --git a/drivers/misc/ibmasm/ibmasm.h b/drivers/misc/ibmasm/ibmasm.h
index 5bd1277..9fea49d 100644
--- a/drivers/misc/ibmasm/ibmasm.h
+++ b/drivers/misc/ibmasm/ibmasm.h
@@ -34,6 +34,7 @@
 #include <linux/kref.h>
 #include <linux/device.h>
 #include <linux/input.h>
+#include <linux/time64.h>
 
 /* Driver identification */
 #define DRIVER_NAME	"ibmasm"
@@ -53,9 +54,11 @@ extern int ibmasm_debug;
 
 static inline char *get_timestamp(char *buf)
 {
-	struct timeval now;
-	do_gettimeofday(&now);
-	sprintf(buf, "%lu.%lu", now.tv_sec, now.tv_usec);
+	struct timespec64 now;
+
+	ktime_get_real_ts64(&now);
+	sprintf(buf, "%llu.%.08lu", (long long)now.tv_sec,
+				now.tv_nsec / NSEC_PER_USEC);
 	return buf;
 }
 
diff --git a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c
index 0c3bb7e..14b7d53 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c
+++ b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c
@@ -209,7 +209,7 @@ static int lis3lv02d_i2c_remove(struct i2c_client *client)
 #ifdef CONFIG_PM_SLEEP
 static int lis3lv02d_i2c_suspend(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct lis3lv02d *lis3 = i2c_get_clientdata(client);
 
 	if (!lis3->pdata || !lis3->pdata->wakeup_flags)
@@ -219,7 +219,7 @@ static int lis3lv02d_i2c_suspend(struct device *dev)
 
 static int lis3lv02d_i2c_resume(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct lis3lv02d *lis3 = i2c_get_clientdata(client);
 
 	/*
@@ -238,7 +238,7 @@ static int lis3lv02d_i2c_resume(struct device *dev)
 #ifdef CONFIG_PM
 static int lis3_i2c_runtime_suspend(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct lis3lv02d *lis3 = i2c_get_clientdata(client);
 
 	lis3lv02d_poweroff(lis3);
@@ -247,7 +247,7 @@ static int lis3_i2c_runtime_suspend(struct device *dev)
 
 static int lis3_i2c_runtime_resume(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct lis3lv02d *lis3 = i2c_get_clientdata(client);
 
 	lis3lv02d_poweron(lis3);
diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index 11fdadc..5c1351b 100644
--- a/drivers/misc/lkdtm.c
+++ b/drivers/misc/lkdtm.c
@@ -335,7 +335,7 @@ static noinline void corrupt_stack(void)
 	memset((void *)data, 0, 64);
 }
 
-static void execute_location(void *dst)
+static void noinline execute_location(void *dst)
 {
 	void (*func)(void) = dst;
 
diff --git a/drivers/misc/mei/Kconfig b/drivers/misc/mei/Kconfig
index d23384d..c49e1d2 100644
--- a/drivers/misc/mei/Kconfig
+++ b/drivers/misc/mei/Kconfig
@@ -1,6 +1,6 @@
 config INTEL_MEI
 	tristate "Intel Management Engine Interface"
-	depends on X86 && PCI && WATCHDOG_CORE
+	depends on X86 && PCI
 	help
 	  The Intel Management Engine (Intel ME) provides Manageability,
 	  Security and Media services for system containing Intel chipsets.
@@ -12,7 +12,7 @@ config INTEL_MEI
 config INTEL_MEI_ME
 	tristate "ME Enabled Intel Chipsets"
 	select INTEL_MEI
-	depends on X86 && PCI && WATCHDOG_CORE
+	depends on X86 && PCI
 	help
 	  MEI support for ME Enabled Intel chipsets.
 
@@ -37,7 +37,7 @@ config INTEL_MEI_ME
 config INTEL_MEI_TXE
 	tristate "Intel Trusted Execution Environment with ME Interface"
 	select INTEL_MEI
-	depends on X86 && PCI && WATCHDOG_CORE
+	depends on X86 && PCI
 	help
 	  MEI Support for Trusted Execution Environment device on Intel SoCs
 
diff --git a/drivers/misc/mei/Makefile b/drivers/misc/mei/Makefile
index 01447ca..59e6b0a 100644
--- a/drivers/misc/mei/Makefile
+++ b/drivers/misc/mei/Makefile
@@ -9,7 +9,6 @@ mei-objs += interrupt.o
 mei-objs += client.o
 mei-objs += main.o
 mei-objs += amthif.o
-mei-objs += wd.o
 mei-objs += bus.o
 mei-objs += bus-fixup.o
 mei-$(CONFIG_DEBUG_FS) += debugfs.o
diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c
index cd0403f..194360a 100644
--- a/drivers/misc/mei/amthif.c
+++ b/drivers/misc/mei/amthif.c
@@ -50,7 +50,6 @@ void mei_amthif_reset_params(struct mei_device *dev)
 	dev->iamthif_current_cb = NULL;
 	dev->iamthif_canceled = false;
 	dev->iamthif_state = MEI_IAMTHIF_IDLE;
-	dev->iamthif_timer = 0;
 	dev->iamthif_stall_timer = 0;
 	dev->iamthif_open_count = 0;
 }
@@ -68,11 +67,14 @@ int mei_amthif_host_init(struct mei_device *dev, struct mei_me_client *me_cl)
 	struct mei_cl *cl = &dev->iamthif_cl;
 	int ret;
 
+	if (mei_cl_is_connected(cl))
+		return 0;
+
 	dev->iamthif_state = MEI_IAMTHIF_IDLE;
 
 	mei_cl_init(cl, dev);
 
-	ret = mei_cl_link(cl, MEI_IAMTHIF_HOST_CLIENT_ID);
+	ret = mei_cl_link(cl);
 	if (ret < 0) {
 		dev_err(dev->dev, "amthif: failed cl_link %d\n", ret);
 		return ret;
@@ -80,32 +82,10 @@ int mei_amthif_host_init(struct mei_device *dev, struct mei_me_client *me_cl)
 
 	ret = mei_cl_connect(cl, me_cl, NULL);
 
-	dev->iamthif_state = MEI_IAMTHIF_IDLE;
-
 	return ret;
 }
 
 /**
- * mei_amthif_find_read_list_entry - finds a amthilist entry for current file
- *
- * @dev: the device structure
- * @file: pointer to file object
- *
- * Return:   returned a list entry on success, NULL on failure.
- */
-struct mei_cl_cb *mei_amthif_find_read_list_entry(struct mei_device *dev,
-						struct file *file)
-{
-	struct mei_cl_cb *cb;
-
-	list_for_each_entry(cb, &dev->amthif_rd_complete_list.list, list)
-		if (cb->file_object == file)
-			return cb;
-	return NULL;
-}
-
-
-/**
  * mei_amthif_read - read data from AMTHIF client
  *
  * @dev: the device structure
@@ -126,18 +106,11 @@ int mei_amthif_read(struct mei_device *dev, struct file *file,
 {
 	struct mei_cl *cl = file->private_data;
 	struct mei_cl_cb *cb;
-	unsigned long timeout;
 	int rets;
 	int wait_ret;
 
-	/* Only possible if we are in timeout */
-	if (!cl) {
-		dev_err(dev->dev, "bad file ext.\n");
-		return -ETIME;
-	}
-
 	dev_dbg(dev->dev, "checking amthif data\n");
-	cb = mei_amthif_find_read_list_entry(dev, file);
+	cb = mei_cl_read_cb(cl, file);
 
 	/* Check for if we can block or not*/
 	if (cb == NULL && file->f_flags & O_NONBLOCK)
@@ -149,8 +122,9 @@ int mei_amthif_read(struct mei_device *dev, struct file *file,
 		/* unlock the Mutex */
 		mutex_unlock(&dev->device_lock);
 
-		wait_ret = wait_event_interruptible(dev->iamthif_cl.wait,
-			(cb = mei_amthif_find_read_list_entry(dev, file)));
+		wait_ret = wait_event_interruptible(cl->rx_wait,
+					!list_empty(&cl->rd_completed) ||
+					!mei_cl_is_connected(cl));
 
 		/* Locking again the Mutex */
 		mutex_lock(&dev->device_lock);
@@ -158,7 +132,12 @@ int mei_amthif_read(struct mei_device *dev, struct file *file,
 		if (wait_ret)
 			return -ERESTARTSYS;
 
-		dev_dbg(dev->dev, "woke up from sleep\n");
+		if (!mei_cl_is_connected(cl)) {
+			rets = -EBUSY;
+			goto out;
+		}
+
+		cb = mei_cl_read_cb(cl, file);
 	}
 
 	if (cb->status) {
@@ -168,24 +147,10 @@ int mei_amthif_read(struct mei_device *dev, struct file *file,
 	}
 
 	dev_dbg(dev->dev, "Got amthif data\n");
-	dev->iamthif_timer = 0;
-
-	timeout = cb->read_time +
-		mei_secs_to_jiffies(MEI_IAMTHIF_READ_TIMER);
-	dev_dbg(dev->dev, "amthif timeout = %lud\n",
-			timeout);
-
-	if  (time_after(jiffies, timeout)) {
-		dev_dbg(dev->dev, "amthif Time out\n");
-		/* 15 sec for the message has expired */
-		list_del_init(&cb->list);
-		rets = -ETIME;
-		goto free;
-	}
 	/* if the whole message will fit remove it from the list */
 	if (cb->buf_idx >= *offset && length >= (cb->buf_idx - *offset))
 		list_del_init(&cb->list);
-	else if (cb->buf_idx > 0 && cb->buf_idx <= *offset) {
+	else if (cb->buf_idx <= *offset) {
 		/* end of the message has been reached */
 		list_del_init(&cb->list);
 		rets = 0;
@@ -195,9 +160,8 @@ int mei_amthif_read(struct mei_device *dev, struct file *file,
 		 * remove message from deletion list
 		 */
 
-	dev_dbg(dev->dev, "amthif cb->buf size - %d\n",
-	    cb->buf.size);
-	dev_dbg(dev->dev, "amthif cb->buf_idx - %lu\n", cb->buf_idx);
+	dev_dbg(dev->dev, "amthif cb->buf.size - %zu cb->buf_idx - %zu\n",
+		cb->buf.size, cb->buf_idx);
 
 	/* length is being truncated to PAGE_SIZE, however,
 	 * the buf_idx may point beyond */
@@ -229,7 +193,7 @@ out:
  *
  * Return: 0 on success, <0 on failure.
  */
-static int mei_amthif_read_start(struct mei_cl *cl, struct file *file)
+static int mei_amthif_read_start(struct mei_cl *cl, const struct file *file)
 {
 	struct mei_device *dev = cl->dev;
 	struct mei_cl_cb *cb;
@@ -248,7 +212,7 @@ static int mei_amthif_read_start(struct mei_cl *cl, struct file *file)
 	list_add_tail(&cb->list, &dev->ctrl_wr_list.list);
 
 	dev->iamthif_state = MEI_IAMTHIF_READING;
-	dev->iamthif_file_object = cb->file_object;
+	dev->iamthif_fp = cb->fp;
 	dev->iamthif_current_cb = cb;
 
 	return 0;
@@ -277,7 +241,7 @@ static int mei_amthif_send_cmd(struct mei_cl *cl, struct mei_cl_cb *cb)
 
 	dev->iamthif_state = MEI_IAMTHIF_WRITING;
 	dev->iamthif_current_cb = cb;
-	dev->iamthif_file_object = cb->file_object;
+	dev->iamthif_fp = cb->fp;
 	dev->iamthif_canceled = false;
 
 	ret = mei_cl_write(cl, cb, false);
@@ -285,7 +249,7 @@ static int mei_amthif_send_cmd(struct mei_cl *cl, struct mei_cl_cb *cb)
 		return ret;
 
 	if (cb->completed)
-		cb->status = mei_amthif_read_start(cl, cb->file_object);
+		cb->status = mei_amthif_read_start(cl, cb->fp);
 
 	return 0;
 }
@@ -304,8 +268,7 @@ int mei_amthif_run_next_cmd(struct mei_device *dev)
 
 	dev->iamthif_canceled = false;
 	dev->iamthif_state = MEI_IAMTHIF_IDLE;
-	dev->iamthif_timer = 0;
-	dev->iamthif_file_object = NULL;
+	dev->iamthif_fp = NULL;
 
 	dev_dbg(dev->dev, "complete amthif cmd_list cb.\n");
 
@@ -329,17 +292,17 @@ int mei_amthif_run_next_cmd(struct mei_device *dev)
 int mei_amthif_write(struct mei_cl *cl, struct mei_cl_cb *cb)
 {
 
-	struct mei_device *dev;
-
-	if (WARN_ON(!cl || !cl->dev))
-		return -ENODEV;
+	struct mei_device *dev = cl->dev;
 
-	if (WARN_ON(!cb))
-		return -EINVAL;
+	list_add_tail(&cb->list, &dev->amthif_cmd_list.list);
 
-	dev = cl->dev;
+	/*
+	 * The previous request is still in processing, queue this one.
+	 */
+	if (dev->iamthif_state > MEI_IAMTHIF_IDLE &&
+	    dev->iamthif_state < MEI_IAMTHIF_READ_COMPLETE)
+		return 0;
 
-	list_add_tail(&cb->list, &dev->amthif_cmd_list.list);
 	return mei_amthif_run_next_cmd(dev);
 }
 
@@ -360,10 +323,10 @@ unsigned int mei_amthif_poll(struct mei_device *dev,
 {
 	unsigned int mask = 0;
 
-	poll_wait(file, &dev->iamthif_cl.wait, wait);
+	poll_wait(file, &dev->iamthif_cl.rx_wait, wait);
 
 	if (dev->iamthif_state == MEI_IAMTHIF_READ_COMPLETE &&
-	    dev->iamthif_file_object == file) {
+	    dev->iamthif_fp == file) {
 
 		mask |= POLLIN | POLLRDNORM;
 		mei_amthif_run_next_cmd(dev);
@@ -393,7 +356,7 @@ int mei_amthif_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb,
 		return ret;
 
 	if (cb->completed)
-		cb->status = mei_amthif_read_start(cl, cb->file_object);
+		cb->status = mei_amthif_read_start(cl, cb->fp);
 
 	return 0;
 }
@@ -437,11 +400,12 @@ int mei_amthif_irq_read_msg(struct mei_cl *cl,
 /**
  * mei_amthif_complete - complete amthif callback.
  *
- * @dev: the device structure.
+ * @cl: host client
  * @cb: callback block.
  */
-void mei_amthif_complete(struct mei_device *dev, struct mei_cl_cb *cb)
+void mei_amthif_complete(struct mei_cl *cl, struct mei_cl_cb *cb)
 {
+	struct mei_device *dev = cl->dev;
 
 	if (cb->fop_type == MEI_FOP_WRITE) {
 		if (!cb->status) {
@@ -453,25 +417,22 @@ void mei_amthif_complete(struct mei_device *dev, struct mei_cl_cb *cb)
 		 * in case of error enqueue the write cb to complete read list
 		 * so it can be propagated to the reader
 		 */
-		list_add_tail(&cb->list, &dev->amthif_rd_complete_list.list);
-		wake_up_interruptible(&dev->iamthif_cl.wait);
+		list_add_tail(&cb->list, &cl->rd_completed);
+		wake_up_interruptible(&cl->rx_wait);
 		return;
 	}
 
 	if (!dev->iamthif_canceled) {
 		dev->iamthif_state = MEI_IAMTHIF_READ_COMPLETE;
 		dev->iamthif_stall_timer = 0;
-		list_add_tail(&cb->list, &dev->amthif_rd_complete_list.list);
+		list_add_tail(&cb->list, &cl->rd_completed);
 		dev_dbg(dev->dev, "amthif read completed\n");
-		dev->iamthif_timer = jiffies;
-		dev_dbg(dev->dev, "dev->iamthif_timer = %ld\n",
-			dev->iamthif_timer);
 	} else {
 		mei_amthif_run_next_cmd(dev);
 	}
 
 	dev_dbg(dev->dev, "completing amthif call back.\n");
-	wake_up_interruptible(&dev->iamthif_cl.wait);
+	wake_up_interruptible(&cl->rx_wait);
 }
 
 /**
@@ -497,7 +458,7 @@ static bool mei_clear_list(struct mei_device *dev,
 	/* list all list member */
 	list_for_each_entry_safe(cb, next, mei_cb_list, list) {
 		/* check if list member associated with a file */
-		if (file == cb->file_object) {
+		if (file == cb->fp) {
 			/* check if cb equal to current iamthif cb */
 			if (dev->iamthif_current_cb == cb) {
 				dev->iamthif_current_cb = NULL;
@@ -523,13 +484,14 @@ static bool mei_clear_list(struct mei_device *dev,
  *
  * Return: true if callback removed from the list, false otherwise
  */
-static bool mei_clear_lists(struct mei_device *dev, struct file *file)
+static bool mei_clear_lists(struct mei_device *dev, const struct file *file)
 {
 	bool removed = false;
+	struct mei_cl *cl = &dev->iamthif_cl;
 
 	/* remove callbacks associated with a file */
 	mei_clear_list(dev, file, &dev->amthif_cmd_list.list);
-	if (mei_clear_list(dev, file, &dev->amthif_rd_complete_list.list))
+	if (mei_clear_list(dev, file, &cl->rd_completed))
 		removed = true;
 
 	mei_clear_list(dev, file, &dev->ctrl_rd_list.list);
@@ -546,7 +508,7 @@ static bool mei_clear_lists(struct mei_device *dev, struct file *file)
 	/* check if iamthif_current_cb not NULL */
 	if (dev->iamthif_current_cb && !removed) {
 		/* check file and iamthif current cb association */
-		if (dev->iamthif_current_cb->file_object == file) {
+		if (dev->iamthif_current_cb->fp == file) {
 			/* remove cb */
 			mei_io_cb_free(dev->iamthif_current_cb);
 			dev->iamthif_current_cb = NULL;
@@ -569,7 +531,7 @@ int mei_amthif_release(struct mei_device *dev, struct file *file)
 	if (dev->iamthif_open_count > 0)
 		dev->iamthif_open_count--;
 
-	if (dev->iamthif_file_object == file &&
+	if (dev->iamthif_fp == file &&
 	    dev->iamthif_state != MEI_IAMTHIF_IDLE) {
 
 		dev_dbg(dev->dev, "amthif canceled iamthif state %d\n",
diff --git a/drivers/misc/mei/bus-fixup.c b/drivers/misc/mei/bus-fixup.c
index 020de59..e9e6ea3 100644
--- a/drivers/misc/mei/bus-fixup.c
+++ b/drivers/misc/mei/bus-fixup.c
@@ -35,6 +35,9 @@ static const uuid_le mei_nfc_info_guid = MEI_UUID_NFC_INFO;
 #define MEI_UUID_NFC_HCI UUID_LE(0x0bb17a78, 0x2a8e, 0x4c50, \
 			0x94, 0xd4, 0x50, 0x26, 0x67, 0x23, 0x77, 0x5c)
 
+#define MEI_UUID_WD UUID_LE(0x05B79A6F, 0x4628, 0x4D7F, \
+			    0x89, 0x9D, 0xA9, 0x15, 0x14, 0xCB, 0x32, 0xAB)
+
 #define MEI_UUID_ANY NULL_UUID_LE
 
 /**
@@ -48,8 +51,7 @@ static const uuid_le mei_nfc_info_guid = MEI_UUID_NFC_INFO;
  */
 static void number_of_connections(struct mei_cl_device *cldev)
 {
-	dev_dbg(&cldev->dev, "running hook %s on %pUl\n",
-			__func__, mei_me_cl_uuid(cldev->me_cl));
+	dev_dbg(&cldev->dev, "running hook %s\n", __func__);
 
 	if (cldev->me_cl->props.max_number_of_connections > 1)
 		cldev->do_match = 0;
@@ -62,11 +64,36 @@ static void number_of_connections(struct mei_cl_device *cldev)
  */
 static void blacklist(struct mei_cl_device *cldev)
 {
-	dev_dbg(&cldev->dev, "running hook %s on %pUl\n",
-			__func__, mei_me_cl_uuid(cldev->me_cl));
+	dev_dbg(&cldev->dev, "running hook %s\n", __func__);
+
 	cldev->do_match = 0;
 }
 
+/**
+ * mei_wd - wd client on the bus, change protocol version
+ *   as the API has changed.
+ *
+ * @cldev: me clients device
+ */
+#if IS_ENABLED(CONFIG_INTEL_MEI_ME)
+#include <linux/pci.h>
+#include "hw-me-regs.h"
+static void mei_wd(struct mei_cl_device *cldev)
+{
+	struct pci_dev *pdev = to_pci_dev(cldev->dev.parent);
+
+	dev_dbg(&cldev->dev, "running hook %s\n", __func__);
+	if (pdev->device == MEI_DEV_ID_WPT_LP ||
+	    pdev->device == MEI_DEV_ID_SPT ||
+	    pdev->device == MEI_DEV_ID_SPT_H)
+		cldev->me_cl->props.protocol_version = 0x2;
+
+	cldev->do_match = 1;
+}
+#else
+static inline void mei_wd(struct mei_cl_device *cldev) {}
+#endif /* CONFIG_INTEL_MEI_ME */
+
 struct mei_nfc_cmd {
 	u8 command;
 	u8 status;
@@ -208,12 +235,11 @@ static void mei_nfc(struct mei_cl_device *cldev)
 
 	bus = cldev->bus;
 
-	dev_dbg(bus->dev, "running hook %s: %pUl match=%d\n",
-		__func__, mei_me_cl_uuid(cldev->me_cl), cldev->do_match);
+	dev_dbg(&cldev->dev, "running hook %s\n", __func__);
 
 	mutex_lock(&bus->device_lock);
 	/* we need to connect to INFO GUID */
-	cl = mei_cl_alloc_linked(bus, MEI_HOST_CLIENT_ID_ANY);
+	cl = mei_cl_alloc_linked(bus);
 	if (IS_ERR(cl)) {
 		ret = PTR_ERR(cl);
 		cl = NULL;
@@ -282,6 +308,7 @@ static struct mei_fixup {
 	MEI_FIXUP(MEI_UUID_ANY, number_of_connections),
 	MEI_FIXUP(MEI_UUID_NFC_INFO, blacklist),
 	MEI_FIXUP(MEI_UUID_NFC_HCI, mei_nfc),
+	MEI_FIXUP(MEI_UUID_WD, mei_wd),
 };
 
 /**
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 0b05aa9..5d5996e 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -44,7 +44,7 @@ ssize_t __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
 			bool blocking)
 {
 	struct mei_device *bus;
-	struct mei_cl_cb *cb = NULL;
+	struct mei_cl_cb *cb;
 	ssize_t rets;
 
 	if (WARN_ON(!cl || !cl->dev))
@@ -53,6 +53,11 @@ ssize_t __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
 	bus = cl->dev;
 
 	mutex_lock(&bus->device_lock);
+	if (bus->dev_state != MEI_DEV_ENABLED) {
+		rets = -ENODEV;
+		goto out;
+	}
+
 	if (!mei_cl_is_connected(cl)) {
 		rets = -ENODEV;
 		goto out;
@@ -81,8 +86,6 @@ ssize_t __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
 
 out:
 	mutex_unlock(&bus->device_lock);
-	if (rets < 0)
-		mei_io_cb_free(cb);
 
 	return rets;
 }
@@ -109,6 +112,10 @@ ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length)
 	bus = cl->dev;
 
 	mutex_lock(&bus->device_lock);
+	if (bus->dev_state != MEI_DEV_ENABLED) {
+		rets = -ENODEV;
+		goto out;
+	}
 
 	cb = mei_cl_read_cb(cl, NULL);
 	if (cb)
@@ -230,45 +237,55 @@ static void mei_cl_bus_event_work(struct work_struct *work)
  * mei_cl_bus_notify_event - schedule notify cb on bus client
  *
  * @cl: host client
+ *
+ * Return: true if event was scheduled
+ *         false if the client is not waiting for event
  */
-void mei_cl_bus_notify_event(struct mei_cl *cl)
+bool mei_cl_bus_notify_event(struct mei_cl *cl)
 {
 	struct mei_cl_device *cldev = cl->cldev;
 
 	if (!cldev || !cldev->event_cb)
-		return;
+		return false;
 
 	if (!(cldev->events_mask & BIT(MEI_CL_EVENT_NOTIF)))
-		return;
+		return false;
 
 	if (!cl->notify_ev)
-		return;
+		return false;
 
 	set_bit(MEI_CL_EVENT_NOTIF, &cldev->events);
 
 	schedule_work(&cldev->event_work);
 
 	cl->notify_ev = false;
+
+	return true;
 }
 
 /**
- * mei_cl_bus_rx_event  - schedule rx evenet
+ * mei_cl_bus_rx_event  - schedule rx event
  *
  * @cl: host client
+ *
+ * Return: true if event was scheduled
+ *         false if the client is not waiting for event
  */
-void mei_cl_bus_rx_event(struct mei_cl *cl)
+bool mei_cl_bus_rx_event(struct mei_cl *cl)
 {
 	struct mei_cl_device *cldev = cl->cldev;
 
 	if (!cldev || !cldev->event_cb)
-		return;
+		return false;
 
 	if (!(cldev->events_mask & BIT(MEI_CL_EVENT_RX)))
-		return;
+		return false;
 
 	set_bit(MEI_CL_EVENT_RX, &cldev->events);
 
 	schedule_work(&cldev->event_work);
+
+	return true;
 }
 
 /**
@@ -398,7 +415,7 @@ int mei_cldev_enable(struct mei_cl_device *cldev)
 
 	if (!cl) {
 		mutex_lock(&bus->device_lock);
-		cl = mei_cl_alloc_linked(bus, MEI_HOST_CLIENT_ID_ANY);
+		cl = mei_cl_alloc_linked(bus);
 		mutex_unlock(&bus->device_lock);
 		if (IS_ERR(cl))
 			return PTR_ERR(cl);
@@ -958,6 +975,22 @@ void mei_cl_bus_rescan(struct mei_device *bus)
 	dev_dbg(bus->dev, "rescan end");
 }
 
+void mei_cl_bus_rescan_work(struct work_struct *work)
+{
+	struct mei_device *bus =
+		container_of(work, struct mei_device, bus_rescan_work);
+	struct mei_me_client *me_cl;
+
+	mutex_lock(&bus->device_lock);
+	me_cl = mei_me_cl_by_uuid(bus, &mei_amthif_guid);
+	if (me_cl)
+		mei_amthif_host_init(bus, me_cl);
+	mei_me_cl_put(me_cl);
+	mutex_unlock(&bus->device_lock);
+
+	mei_cl_bus_rescan(bus);
+}
+
 int __mei_cldev_driver_register(struct mei_cl_driver *cldrv,
 				struct module *owner)
 {
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index a6c87c7..bab17e4 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -359,7 +359,7 @@ void mei_io_cb_free(struct mei_cl_cb *cb)
  * Return: mei_cl_cb pointer or NULL;
  */
 struct mei_cl_cb *mei_io_cb_init(struct mei_cl *cl, enum mei_cb_file_ops type,
-				 struct file *fp)
+				 const struct file *fp)
 {
 	struct mei_cl_cb *cb;
 
@@ -368,7 +368,7 @@ struct mei_cl_cb *mei_io_cb_init(struct mei_cl *cl, enum mei_cb_file_ops type,
 		return NULL;
 
 	INIT_LIST_HEAD(&cb->list);
-	cb->file_object = fp;
+	cb->fp = fp;
 	cb->cl = cl;
 	cb->buf_idx = 0;
 	cb->fop_type = type;
@@ -455,7 +455,8 @@ int mei_io_cb_alloc_buf(struct mei_cl_cb *cb, size_t length)
  * Return: cb on success and NULL on failure
  */
 struct mei_cl_cb *mei_cl_alloc_cb(struct mei_cl *cl, size_t length,
-				  enum mei_cb_file_ops type, struct file *fp)
+				  enum mei_cb_file_ops type,
+				  const struct file *fp)
 {
 	struct mei_cl_cb *cb;
 
@@ -485,7 +486,7 @@ struct mei_cl_cb *mei_cl_read_cb(const struct mei_cl *cl, const struct file *fp)
 	struct mei_cl_cb *cb;
 
 	list_for_each_entry(cb, &cl->rd_completed, list)
-		if (!fp || fp == cb->file_object)
+		if (!fp || fp == cb->fp)
 			return cb;
 
 	return NULL;
@@ -503,12 +504,12 @@ void mei_cl_read_cb_flush(const struct mei_cl *cl, const struct file *fp)
 	struct mei_cl_cb *cb, *next;
 
 	list_for_each_entry_safe(cb, next, &cl->rd_completed, list)
-		if (!fp || fp == cb->file_object)
+		if (!fp || fp == cb->fp)
 			mei_io_cb_free(cb);
 
 
 	list_for_each_entry_safe(cb, next, &cl->rd_pending, list)
-		if (!fp || fp == cb->file_object)
+		if (!fp || fp == cb->fp)
 			mei_io_cb_free(cb);
 }
 
@@ -535,7 +536,6 @@ int mei_cl_flush_queues(struct mei_cl *cl, const struct file *fp)
 	mei_io_list_flush(&cl->dev->ctrl_wr_list, cl);
 	mei_io_list_flush(&cl->dev->ctrl_rd_list, cl);
 	mei_io_list_flush(&cl->dev->amthif_cmd_list, cl);
-	mei_io_list_flush(&cl->dev->amthif_rd_complete_list, cl);
 
 	mei_cl_read_cb_flush(cl, fp);
 
@@ -587,27 +587,23 @@ struct mei_cl *mei_cl_allocate(struct mei_device *dev)
  * mei_cl_link - allocate host id in the host map
  *
  * @cl: host client
- * @id: fixed host id or MEI_HOST_CLIENT_ID_ANY (-1) for generic one
  *
  * Return: 0 on success
  *	-EINVAL on incorrect values
  *	-EMFILE if open count exceeded.
  */
-int mei_cl_link(struct mei_cl *cl, int id)
+int mei_cl_link(struct mei_cl *cl)
 {
 	struct mei_device *dev;
 	long open_handle_count;
+	int id;
 
 	if (WARN_ON(!cl || !cl->dev))
 		return -EINVAL;
 
 	dev = cl->dev;
 
-	/* If Id is not assigned get one*/
-	if (id == MEI_HOST_CLIENT_ID_ANY)
-		id = find_first_zero_bit(dev->host_clients_map,
-					MEI_CLIENTS_MAX);
-
+	id = find_first_zero_bit(dev->host_clients_map, MEI_CLIENTS_MAX);
 	if (id >= MEI_CLIENTS_MAX) {
 		dev_err(dev->dev, "id exceeded %d", MEI_CLIENTS_MAX);
 		return -EMFILE;
@@ -648,7 +644,7 @@ int mei_cl_unlink(struct mei_cl *cl)
 	if (!cl)
 		return 0;
 
-	/* wd and amthif might not be initialized */
+	/* amthif might not be initialized */
 	if (!cl->dev)
 		return 0;
 
@@ -670,31 +666,12 @@ int mei_cl_unlink(struct mei_cl *cl)
 	return 0;
 }
 
-
-void mei_host_client_init(struct work_struct *work)
+void mei_host_client_init(struct mei_device *dev)
 {
-	struct mei_device *dev =
-		container_of(work, struct mei_device, init_work);
-	struct mei_me_client *me_cl;
-
-	mutex_lock(&dev->device_lock);
-
-
-	me_cl = mei_me_cl_by_uuid(dev, &mei_amthif_guid);
-	if (me_cl)
-		mei_amthif_host_init(dev, me_cl);
-	mei_me_cl_put(me_cl);
-
-	me_cl = mei_me_cl_by_uuid(dev, &mei_wd_guid);
-	if (me_cl)
-		mei_wd_host_init(dev, me_cl);
-	mei_me_cl_put(me_cl);
-
 	dev->dev_state = MEI_DEV_ENABLED;
 	dev->reset_count = 0;
-	mutex_unlock(&dev->device_lock);
 
-	mei_cl_bus_rescan(dev);
+	schedule_work(&dev->bus_rescan_work);
 
 	pm_runtime_mark_last_busy(dev->dev);
 	dev_dbg(dev->dev, "rpm: autosuspend\n");
@@ -726,6 +703,33 @@ bool mei_hbuf_acquire(struct mei_device *dev)
 }
 
 /**
+ * mei_cl_wake_all - wake up readers, writers and event waiters so
+ *                 they can be interrupted
+ *
+ * @cl: host client
+ */
+static void mei_cl_wake_all(struct mei_cl *cl)
+{
+	struct mei_device *dev = cl->dev;
+
+	/* synchronized under device mutex */
+	if (waitqueue_active(&cl->rx_wait)) {
+		cl_dbg(dev, cl, "Waking up reading client!\n");
+		wake_up_interruptible(&cl->rx_wait);
+	}
+	/* synchronized under device mutex */
+	if (waitqueue_active(&cl->tx_wait)) {
+		cl_dbg(dev, cl, "Waking up writing client!\n");
+		wake_up_interruptible(&cl->tx_wait);
+	}
+	/* synchronized under device mutex */
+	if (waitqueue_active(&cl->ev_wait)) {
+		cl_dbg(dev, cl, "Waking up waiting for event clients!\n");
+		wake_up_interruptible(&cl->ev_wait);
+	}
+}
+
+/**
  * mei_cl_set_disconnected - set disconnected state and clear
  *   associated states and resources
  *
@@ -740,8 +744,11 @@ void mei_cl_set_disconnected(struct mei_cl *cl)
 		return;
 
 	cl->state = MEI_FILE_DISCONNECTED;
+	mei_io_list_free(&dev->write_list, cl);
+	mei_io_list_free(&dev->write_waiting_list, cl);
 	mei_io_list_flush(&dev->ctrl_rd_list, cl);
 	mei_io_list_flush(&dev->ctrl_wr_list, cl);
+	mei_cl_wake_all(cl);
 	cl->mei_flow_ctrl_creds = 0;
 	cl->timer_count = 0;
 
@@ -1034,7 +1041,7 @@ int mei_cl_irq_connect(struct mei_cl *cl, struct mei_cl_cb *cb,
  * Return: 0 on success, <0 on failure.
  */
 int mei_cl_connect(struct mei_cl *cl, struct mei_me_client *me_cl,
-		   struct file *file)
+		  const struct file *file)
 {
 	struct mei_device *dev;
 	struct mei_cl_cb *cb;
@@ -1119,11 +1126,10 @@ nortpm:
  * mei_cl_alloc_linked - allocate and link host client
  *
  * @dev: the device structure
- * @id: fixed host id or MEI_HOST_CLIENT_ID_ANY (-1) for generic one
  *
  * Return: cl on success ERR_PTR on failure
  */
-struct mei_cl *mei_cl_alloc_linked(struct mei_device *dev, int id)
+struct mei_cl *mei_cl_alloc_linked(struct mei_device *dev)
 {
 	struct mei_cl *cl;
 	int ret;
@@ -1134,7 +1140,7 @@ struct mei_cl *mei_cl_alloc_linked(struct mei_device *dev, int id)
 		goto err;
 	}
 
-	ret = mei_cl_link(cl, id);
+	ret = mei_cl_link(cl);
 	if (ret)
 		goto err;
 
@@ -1149,11 +1155,12 @@ err:
 /**
  * mei_cl_flow_ctrl_creds - checks flow_control credits for cl.
  *
- * @cl: private data of the file object
+ * @cl: host client
+ * @fp: the file pointer associated with the pointer
  *
  * Return: 1 if mei_flow_ctrl_creds >0, 0 - otherwise.
  */
-int mei_cl_flow_ctrl_creds(struct mei_cl *cl)
+static int mei_cl_flow_ctrl_creds(struct mei_cl *cl, const struct file *fp)
 {
 	int rets;
 
@@ -1164,7 +1171,7 @@ int mei_cl_flow_ctrl_creds(struct mei_cl *cl)
 		return 1;
 
 	if (mei_cl_is_fixed_address(cl)) {
-		rets = mei_cl_read_start(cl, mei_cl_mtu(cl), NULL);
+		rets = mei_cl_read_start(cl, mei_cl_mtu(cl), fp);
 		if (rets && rets != -EBUSY)
 			return rets;
 		return 1;
@@ -1186,7 +1193,7 @@ int mei_cl_flow_ctrl_creds(struct mei_cl *cl)
  *	0 on success
  *	-EINVAL when ctrl credits are <= 0
  */
-int mei_cl_flow_ctrl_reduce(struct mei_cl *cl)
+static int mei_cl_flow_ctrl_reduce(struct mei_cl *cl)
 {
 	if (WARN_ON(!cl || !cl->me_cl))
 		return -EINVAL;
@@ -1283,7 +1290,8 @@ int mei_cl_irq_notify(struct mei_cl *cl, struct mei_cl_cb *cb,
  *
  * Return: 0 on such and error otherwise.
  */
-int mei_cl_notify_request(struct mei_cl *cl, struct file *file, u8 request)
+int mei_cl_notify_request(struct mei_cl *cl,
+			  const struct file *file, u8 request)
 {
 	struct mei_device *dev;
 	struct mei_cl_cb *cb;
@@ -1368,12 +1376,12 @@ void mei_cl_notify(struct mei_cl *cl)
 
 	cl_dbg(dev, cl, "notify event");
 	cl->notify_ev = true;
-	wake_up_interruptible_all(&cl->ev_wait);
+	if (!mei_cl_bus_notify_event(cl))
+		wake_up_interruptible(&cl->ev_wait);
 
 	if (cl->ev_async)
 		kill_fasync(&cl->ev_async, SIGIO, POLL_PRI);
 
-	mei_cl_bus_notify_event(cl);
 }
 
 /**
@@ -1422,6 +1430,25 @@ out:
 }
 
 /**
+ * mei_cl_is_read_fc_cb - check if read cb is waiting for flow control
+ *                        for given host client
+ *
+ * @cl: host client
+ *
+ * Return: true, if found at least one cb.
+ */
+static bool mei_cl_is_read_fc_cb(struct mei_cl *cl)
+{
+	struct mei_device *dev = cl->dev;
+	struct mei_cl_cb *cb;
+
+	list_for_each_entry(cb, &dev->ctrl_wr_list.list, list)
+		if (cb->fop_type == MEI_FOP_READ && cb->cl == cl)
+			return true;
+	return false;
+}
+
+/**
  * mei_cl_read_start - the start read client message function.
  *
  * @cl: host client
@@ -1430,7 +1457,7 @@ out:
  *
  * Return: 0 on success, <0 on failure.
  */
-int mei_cl_read_start(struct mei_cl *cl, size_t length, struct file *fp)
+int mei_cl_read_start(struct mei_cl *cl, size_t length, const struct file *fp)
 {
 	struct mei_device *dev;
 	struct mei_cl_cb *cb;
@@ -1445,7 +1472,7 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length, struct file *fp)
 		return -ENODEV;
 
 	/* HW currently supports only one pending read */
-	if (!list_empty(&cl->rd_pending))
+	if (!list_empty(&cl->rd_pending) || mei_cl_is_read_fc_cb(cl))
 		return -EBUSY;
 
 	if (!mei_me_cl_is_active(cl->me_cl)) {
@@ -1524,7 +1551,7 @@ int mei_cl_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb,
 
 	first_chunk = cb->buf_idx == 0;
 
-	rets = first_chunk ? mei_cl_flow_ctrl_creds(cl) : 1;
+	rets = first_chunk ? mei_cl_flow_ctrl_creds(cl, cb->fp) : 1;
 	if (rets < 0)
 		return rets;
 
@@ -1556,7 +1583,7 @@ int mei_cl_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb,
 		return 0;
 	}
 
-	cl_dbg(dev, cl, "buf: size = %d idx = %lu\n",
+	cl_dbg(dev, cl, "buf: size = %zu idx = %zu\n",
 			cb->buf.size, cb->buf_idx);
 
 	rets = mei_write_message(dev, &mei_hdr, buf->data + cb->buf_idx);
@@ -1618,7 +1645,7 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
 	if (rets < 0 && rets != -EINPROGRESS) {
 		pm_runtime_put_noidle(dev->dev);
 		cl_err(dev, cl, "rpm: get failed %d\n", rets);
-		return rets;
+		goto free;
 	}
 
 	cb->buf_idx = 0;
@@ -1630,7 +1657,7 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
 	mei_hdr.msg_complete = 0;
 	mei_hdr.internal = cb->internal;
 
-	rets = mei_cl_flow_ctrl_creds(cl);
+	rets = mei_cl_flow_ctrl_creds(cl, cb->fp);
 	if (rets < 0)
 		goto err;
 
@@ -1677,7 +1704,8 @@ out:
 
 		mutex_unlock(&dev->device_lock);
 		rets = wait_event_interruptible(cl->tx_wait,
-				cl->writing_state == MEI_WRITE_COMPLETE);
+				cl->writing_state == MEI_WRITE_COMPLETE ||
+				(!mei_cl_is_connected(cl)));
 		mutex_lock(&dev->device_lock);
 		/* wait_event_interruptible returns -ERESTARTSYS */
 		if (rets) {
@@ -1685,6 +1713,10 @@ out:
 				rets = -EINTR;
 			goto err;
 		}
+		if (cl->writing_state != MEI_WRITE_COMPLETE) {
+			rets = -EFAULT;
+			goto err;
+		}
 	}
 
 	rets = size;
@@ -1692,6 +1724,8 @@ err:
 	cl_dbg(dev, cl, "rpm: autosuspend\n");
 	pm_runtime_mark_last_busy(dev->dev);
 	pm_runtime_put_autosuspend(dev->dev);
+free:
+	mei_io_cb_free(cb);
 
 	return rets;
 }
@@ -1721,10 +1755,8 @@ void mei_cl_complete(struct mei_cl *cl, struct mei_cl_cb *cb)
 
 	case MEI_FOP_READ:
 		list_add_tail(&cb->list, &cl->rd_completed);
-		if (waitqueue_active(&cl->rx_wait))
-			wake_up_interruptible_all(&cl->rx_wait);
-		else
-			mei_cl_bus_rx_event(cl);
+		if (!mei_cl_bus_rx_event(cl))
+			wake_up_interruptible(&cl->rx_wait);
 		break;
 
 	case MEI_FOP_CONNECT:
@@ -1753,44 +1785,3 @@ void mei_cl_all_disconnect(struct mei_device *dev)
 	list_for_each_entry(cl, &dev->file_list, link)
 		mei_cl_set_disconnected(cl);
 }
-
-
-/**
- * mei_cl_all_wakeup  - wake up all readers and writers they can be interrupted
- *
- * @dev: mei device
- */
-void mei_cl_all_wakeup(struct mei_device *dev)
-{
-	struct mei_cl *cl;
-
-	list_for_each_entry(cl, &dev->file_list, link) {
-		if (waitqueue_active(&cl->rx_wait)) {
-			cl_dbg(dev, cl, "Waking up reading client!\n");
-			wake_up_interruptible(&cl->rx_wait);
-		}
-		if (waitqueue_active(&cl->tx_wait)) {
-			cl_dbg(dev, cl, "Waking up writing client!\n");
-			wake_up_interruptible(&cl->tx_wait);
-		}
-
-		/* synchronized under device mutex */
-		if (waitqueue_active(&cl->ev_wait)) {
-			cl_dbg(dev, cl, "Waking up waiting for event clients!\n");
-			wake_up_interruptible(&cl->ev_wait);
-		}
-	}
-}
-
-/**
- * mei_cl_all_write_clear - clear all pending writes
- *
- * @dev: mei device
- */
-void mei_cl_all_write_clear(struct mei_device *dev)
-{
-	mei_io_list_free(&dev->write_list, NULL);
-	mei_io_list_free(&dev->write_waiting_list, NULL);
-}
-
-
diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h
index 04e1aa3..0d7a3a1 100644
--- a/drivers/misc/mei/client.h
+++ b/drivers/misc/mei/client.h
@@ -18,7 +18,6 @@
 #define _MEI_CLIENT_H_
 
 #include <linux/types.h>
-#include <linux/watchdog.h>
 #include <linux/poll.h>
 #include <linux/mei.h>
 
@@ -84,7 +83,7 @@ static inline u8 mei_me_cl_ver(const struct mei_me_client *me_cl)
  * MEI IO Functions
  */
 struct mei_cl_cb *mei_io_cb_init(struct mei_cl *cl, enum mei_cb_file_ops type,
-				 struct file *fp);
+				 const struct file *fp);
 void mei_io_cb_free(struct mei_cl_cb *priv_cb);
 int mei_io_cb_alloc_buf(struct mei_cl_cb *cb, size_t length);
 
@@ -108,21 +107,19 @@ struct mei_cl *mei_cl_allocate(struct mei_device *dev);
 void mei_cl_init(struct mei_cl *cl, struct mei_device *dev);
 
 
-int mei_cl_link(struct mei_cl *cl, int id);
+int mei_cl_link(struct mei_cl *cl);
 int mei_cl_unlink(struct mei_cl *cl);
 
-struct mei_cl *mei_cl_alloc_linked(struct mei_device *dev, int id);
+struct mei_cl *mei_cl_alloc_linked(struct mei_device *dev);
 
 struct mei_cl_cb *mei_cl_read_cb(const struct mei_cl *cl,
 				 const struct file *fp);
 void mei_cl_read_cb_flush(const struct mei_cl *cl, const struct file *fp);
 struct mei_cl_cb *mei_cl_alloc_cb(struct mei_cl *cl, size_t length,
-				  enum mei_cb_file_ops type, struct file *fp);
+				  enum mei_cb_file_ops type,
+				  const struct file *fp);
 int mei_cl_flush_queues(struct mei_cl *cl, const struct file *fp);
 
-int mei_cl_flow_ctrl_creds(struct mei_cl *cl);
-
-int mei_cl_flow_ctrl_reduce(struct mei_cl *cl);
 /*
  *  MEI input output function prototype
  */
@@ -217,10 +214,10 @@ void mei_cl_set_disconnected(struct mei_cl *cl);
 int mei_cl_irq_disconnect(struct mei_cl *cl, struct mei_cl_cb *cb,
 			  struct mei_cl_cb *cmpl_list);
 int mei_cl_connect(struct mei_cl *cl, struct mei_me_client *me_cl,
-		   struct file *file);
+		   const struct file *file);
 int mei_cl_irq_connect(struct mei_cl *cl, struct mei_cl_cb *cb,
 			      struct mei_cl_cb *cmpl_list);
-int mei_cl_read_start(struct mei_cl *cl, size_t length, struct file *fp);
+int mei_cl_read_start(struct mei_cl *cl, size_t length, const struct file *fp);
 int mei_cl_irq_read_msg(struct mei_cl *cl, struct mei_msg_hdr *hdr,
 			struct mei_cl_cb *cmpl_list);
 int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking);
@@ -229,19 +226,18 @@ int mei_cl_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb,
 
 void mei_cl_complete(struct mei_cl *cl, struct mei_cl_cb *cb);
 
-void mei_host_client_init(struct work_struct *work);
+void mei_host_client_init(struct mei_device *dev);
 
 u8 mei_cl_notify_fop2req(enum mei_cb_file_ops fop);
 enum mei_cb_file_ops mei_cl_notify_req2fop(u8 request);
-int mei_cl_notify_request(struct mei_cl *cl, struct file *file, u8 request);
+int mei_cl_notify_request(struct mei_cl *cl,
+			  const struct file *file, u8 request);
 int mei_cl_irq_notify(struct mei_cl *cl, struct mei_cl_cb *cb,
 		      struct mei_cl_cb *cmpl_list);
 int mei_cl_notify_get(struct mei_cl *cl, bool block, bool *notify_ev);
 void mei_cl_notify(struct mei_cl *cl);
 
 void mei_cl_all_disconnect(struct mei_device *dev);
-void mei_cl_all_wakeup(struct mei_device *dev);
-void mei_cl_all_write_clear(struct mei_device *dev);
 
 #define MEI_CL_FMT "cl:host=%02d me=%02d "
 #define MEI_CL_PRM(cl) (cl)->host_client_id, mei_cl_me_id(cl)
@@ -249,6 +245,9 @@ void mei_cl_all_write_clear(struct mei_device *dev);
 #define cl_dbg(dev, cl, format, arg...) \
 	dev_dbg((dev)->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg)
 
+#define cl_warn(dev, cl, format, arg...) \
+	dev_warn((dev)->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg)
+
 #define cl_err(dev, cl, format, arg...) \
 	dev_err((dev)->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg)
 
diff --git a/drivers/misc/mei/debugfs.c b/drivers/misc/mei/debugfs.c
index a138d8a..c6c051b 100644
--- a/drivers/misc/mei/debugfs.c
+++ b/drivers/misc/mei/debugfs.c
@@ -50,6 +50,7 @@ static ssize_t mei_dbgfs_read_meclients(struct file *fp, char __user *ubuf,
 	}
 
 	pos += scnprintf(buf + pos, bufsz - pos, HDR);
+#undef HDR
 
 	/*  if the driver is not enabled the list won't be consistent */
 	if (dev->dev_state != MEI_DEV_ENABLED)
@@ -90,23 +91,37 @@ static ssize_t mei_dbgfs_read_active(struct file *fp, char __user *ubuf,
 {
 	struct mei_device *dev = fp->private_data;
 	struct mei_cl *cl;
-	const size_t bufsz = 1024;
+	size_t bufsz = 1;
 	char *buf;
 	int i = 0;
 	int pos = 0;
 	int ret;
 
+#define HDR "   |me|host|state|rd|wr|\n"
+
 	if (!dev)
 		return -ENODEV;
 
+	mutex_lock(&dev->device_lock);
+
+	/*
+	 * if the driver is not enabled the list won't be consistent,
+	 * we output empty table
+	 */
+	if (dev->dev_state == MEI_DEV_ENABLED)
+		list_for_each_entry(cl, &dev->file_list, link)
+			bufsz++;
+
+	bufsz *= sizeof(HDR) + 1;
+
 	buf = kzalloc(bufsz, GFP_KERNEL);
-	if  (!buf)
+	if  (!buf) {
+		mutex_unlock(&dev->device_lock);
 		return -ENOMEM;
+	}
 
-	pos += scnprintf(buf + pos, bufsz - pos,
-			"  |me|host|state|rd|wr|\n");
-
-	mutex_lock(&dev->device_lock);
+	pos += scnprintf(buf + pos, bufsz - pos, HDR);
+#undef HDR
 
 	/*  if the driver is not enabled the list won't be consistent */
 	if (dev->dev_state != MEI_DEV_ENABLED)
@@ -115,7 +130,7 @@ static ssize_t mei_dbgfs_read_active(struct file *fp, char __user *ubuf,
 	list_for_each_entry(cl, &dev->file_list, link) {
 
 		pos += scnprintf(buf + pos, bufsz - pos,
-			"%2d|%2d|%4d|%5d|%2d|%2d|\n",
+			"%3d|%2d|%4d|%5d|%2d|%2d|\n",
 			i, mei_cl_me_id(cl), cl->host_client_id, cl->state,
 			!list_empty(&cl->rd_completed), cl->writing_state);
 		i++;
@@ -150,16 +165,21 @@ static ssize_t mei_dbgfs_read_devstate(struct file *fp, char __user *ubuf,
 	pos += scnprintf(buf + pos, bufsz - pos, "hbm: %s\n",
 			mei_hbm_state_str(dev->hbm_state));
 
-	if (dev->hbm_state == MEI_HBM_STARTED) {
+	if (dev->hbm_state >= MEI_HBM_ENUM_CLIENTS &&
+	    dev->hbm_state <= MEI_HBM_STARTED) {
 		pos += scnprintf(buf + pos, bufsz - pos, "hbm features:\n");
 		pos += scnprintf(buf + pos, bufsz - pos, "\tPG: %01d\n",
 				 dev->hbm_f_pg_supported);
 		pos += scnprintf(buf + pos, bufsz - pos, "\tDC: %01d\n",
 				 dev->hbm_f_dc_supported);
+		pos += scnprintf(buf + pos, bufsz - pos, "\tIE: %01d\n",
+				 dev->hbm_f_ie_supported);
 		pos += scnprintf(buf + pos, bufsz - pos, "\tDOT: %01d\n",
 				 dev->hbm_f_dot_supported);
 		pos += scnprintf(buf + pos, bufsz - pos, "\tEV: %01d\n",
 				 dev->hbm_f_ev_supported);
+		pos += scnprintf(buf + pos, bufsz - pos, "\tFA: %01d\n",
+				 dev->hbm_f_fa_supported);
 	}
 
 	pos += scnprintf(buf + pos, bufsz - pos, "pg:  %s, %s\n",
@@ -175,6 +195,30 @@ static const struct file_operations mei_dbgfs_fops_devstate = {
 	.llseek = generic_file_llseek,
 };
 
+static ssize_t mei_dbgfs_write_allow_fa(struct file *file,
+					const char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct mei_device *dev;
+	int ret;
+
+	dev = container_of(file->private_data,
+			   struct mei_device, allow_fixed_address);
+
+	ret = debugfs_write_file_bool(file, user_buf, count, ppos);
+	if (ret < 0)
+		return ret;
+	dev->override_fixed_address = true;
+	return ret;
+}
+
+static const struct file_operations mei_dbgfs_fops_allow_fa = {
+	.open = simple_open,
+	.read = debugfs_read_file_bool,
+	.write = mei_dbgfs_write_allow_fa,
+	.llseek = generic_file_llseek,
+};
+
 /**
  * mei_dbgfs_deregister - Remove the debugfs files and directories
  *
@@ -224,8 +268,9 @@ int mei_dbgfs_register(struct mei_device *dev, const char *name)
 		dev_err(dev->dev, "devstate: registration failed\n");
 		goto err;
 	}
-	f = debugfs_create_bool("allow_fixed_address", S_IRUSR | S_IWUSR, dir,
-				&dev->allow_fixed_address);
+	f = debugfs_create_file("allow_fixed_address", S_IRUSR | S_IWUSR, dir,
+				&dev->allow_fixed_address,
+				&mei_dbgfs_fops_allow_fa);
 	if (!f) {
 		dev_err(dev->dev, "allow_fixed_address: registration failed\n");
 		goto err;
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index e7b7aad..5e305d2 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -301,7 +301,10 @@ static int mei_hbm_enum_clients_req(struct mei_device *dev)
 	enum_req = (struct hbm_host_enum_request *)dev->wr_msg.data;
 	memset(enum_req, 0, len);
 	enum_req->hbm_cmd = HOST_ENUM_REQ_CMD;
-	enum_req->allow_add = dev->hbm_f_dc_supported;
+	enum_req->flags |= dev->hbm_f_dc_supported ?
+			   MEI_HBM_ENUM_F_ALLOW_ADD : 0;
+	enum_req->flags |= dev->hbm_f_ie_supported ?
+			   MEI_HBM_ENUM_F_IMMEDIATE_ENUM : 0;
 
 	ret = mei_write_message(dev, mei_hdr, dev->wr_msg.data);
 	if (ret) {
@@ -401,6 +404,9 @@ static int mei_hbm_fw_add_cl_req(struct mei_device *dev,
 	if (ret)
 		status = !MEI_HBMS_SUCCESS;
 
+	if (dev->dev_state == MEI_DEV_ENABLED)
+		schedule_work(&dev->bus_rescan_work);
+
 	return mei_hbm_add_cl_resp(dev, req->me_addr, status);
 }
 
@@ -543,7 +549,7 @@ static int mei_hbm_prop_req(struct mei_device *dev)
 	/* We got all client properties */
 	if (next_client_index == MEI_CLIENTS_MAX) {
 		dev->hbm_state = MEI_HBM_STARTED;
-		schedule_work(&dev->init_work);
+		mei_host_client_init(dev);
 
 		return 0;
 	}
@@ -789,8 +795,11 @@ static void mei_hbm_cl_connect_res(struct mei_device *dev, struct mei_cl *cl,
 		cl->state = MEI_FILE_CONNECTED;
 	else {
 		cl->state = MEI_FILE_DISCONNECT_REPLY;
-		if (rs->status == MEI_CL_CONN_NOT_FOUND)
+		if (rs->status == MEI_CL_CONN_NOT_FOUND) {
 			mei_me_cl_del(dev, cl->me_cl);
+			if (dev->dev_state == MEI_DEV_ENABLED)
+				schedule_work(&dev->bus_rescan_work);
+		}
 	}
 	cl->status = mei_cl_conn_status_to_errno(rs->status);
 }
@@ -866,7 +875,7 @@ static int mei_hbm_fw_disconnect_req(struct mei_device *dev,
 
 	cl = mei_hbm_cl_find_by_cmd(dev, disconnect_req);
 	if (cl) {
-		cl_dbg(dev, cl, "fw disconnect request received\n");
+		cl_warn(dev, cl, "fw disconnect request received\n");
 		cl->state = MEI_FILE_DISCONNECTING;
 		cl->timer_count = 0;
 
@@ -972,6 +981,9 @@ static void mei_hbm_config_features(struct mei_device *dev)
 	if (dev->version.major_version >= HBM_MAJOR_VERSION_DC)
 		dev->hbm_f_dc_supported = 1;
 
+	if (dev->version.major_version >= HBM_MAJOR_VERSION_IE)
+		dev->hbm_f_ie_supported = 1;
+
 	/* disconnect on connect timeout instead of link reset */
 	if (dev->version.major_version >= HBM_MAJOR_VERSION_DOT)
 		dev->hbm_f_dot_supported = 1;
@@ -979,6 +991,10 @@ static void mei_hbm_config_features(struct mei_device *dev)
 	/* Notification Event Support */
 	if (dev->version.major_version >= HBM_MAJOR_VERSION_EV)
 		dev->hbm_f_ev_supported = 1;
+
+	/* Fixed Address Client Support */
+	if (dev->version.major_version >= HBM_MAJOR_VERSION_FA)
+		dev->hbm_f_fa_supported = 1;
 }
 
 /**
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index 25b1997..e2fb44c 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -189,8 +189,11 @@ static int mei_me_fw_status(struct mei_device *dev,
 
 	fw_status->count = fw_src->count;
 	for (i = 0; i < fw_src->count && i < MEI_FW_STATUS_MAX; i++) {
-		ret = pci_read_config_dword(pdev,
-			fw_src->status[i], &fw_status->status[i]);
+		ret = pci_read_config_dword(pdev, fw_src->status[i],
+					    &fw_status->status[i]);
+		trace_mei_pci_cfg_read(dev->dev, "PCI_CFG_HSF_X",
+				       fw_src->status[i],
+				       fw_status->status[i]);
 		if (ret)
 			return ret;
 	}
@@ -215,6 +218,7 @@ static void mei_me_hw_config(struct mei_device *dev)
 
 	reg = 0;
 	pci_read_config_dword(pdev, PCI_CFG_HFS_1, &reg);
+	trace_mei_pci_cfg_read(dev->dev, "PCI_CFG_HFS_1", PCI_CFG_HFS_1, reg);
 	hw->d0i3_supported =
 		((reg & PCI_CFG_HFS_1_D0I3_MSK) == PCI_CFG_HFS_1_D0I3_MSK);
 
@@ -1248,6 +1252,7 @@ static bool mei_me_fw_type_nm(struct pci_dev *pdev)
 	u32 reg;
 
 	pci_read_config_dword(pdev, PCI_CFG_HFS_2, &reg);
+	trace_mei_pci_cfg_read(&pdev->dev, "PCI_CFG_HFS_2", PCI_CFG_HFS_2, reg);
 	/* make sure that bit 9 (NM) is up and bit 10 (DM) is down */
 	return (reg & 0x600) == 0x200;
 }
@@ -1260,6 +1265,7 @@ static bool mei_me_fw_type_sps(struct pci_dev *pdev)
 	u32 reg;
 	/* Read ME FW Status check for SPS Firmware */
 	pci_read_config_dword(pdev, PCI_CFG_HFS_1, &reg);
+	trace_mei_pci_cfg_read(&pdev->dev, "PCI_CFG_HFS_1", PCI_CFG_HFS_1, reg);
 	/* if bits [19:16] = 15, running SPS Firmware */
 	return (reg & 0xf0000) == 0xf0000;
 }
diff --git a/drivers/misc/mei/hw-txe.c b/drivers/misc/mei/hw-txe.c
index bae680c..4a6c1b8 100644
--- a/drivers/misc/mei/hw-txe.c
+++ b/drivers/misc/mei/hw-txe.c
@@ -28,6 +28,9 @@
 #include "client.h"
 #include "hbm.h"
 
+#include "mei-trace.h"
+
+
 /**
  * mei_txe_reg_read - Reads 32bit data from the txe device
  *
@@ -640,8 +643,11 @@ static int mei_txe_fw_status(struct mei_device *dev,
 
 	fw_status->count = fw_src->count;
 	for (i = 0; i < fw_src->count && i < MEI_FW_STATUS_MAX; i++) {
-		ret = pci_read_config_dword(pdev,
-			fw_src->status[i], &fw_status->status[i]);
+		ret = pci_read_config_dword(pdev, fw_src->status[i],
+					    &fw_status->status[i]);
+		trace_mei_pci_cfg_read(dev->dev, "PCI_CFG_HSF_X",
+				       fw_src->status[i],
+				       fw_status->status[i]);
 		if (ret)
 			return ret;
 	}
diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h
index 4cebde8..9daf3f9 100644
--- a/drivers/misc/mei/hw.h
+++ b/drivers/misc/mei/hw.h
@@ -29,7 +29,6 @@
 #define MEI_CLIENTS_INIT_TIMEOUT   15  /* HPS: Clients Enumeration Timeout */
 
 #define MEI_IAMTHIF_STALL_TIMER    12  /* HPS */
-#define MEI_IAMTHIF_READ_TIMER     10  /* HPS */
 
 #define MEI_PGI_TIMEOUT             1  /* PG Isolation time response 1 sec */
 #define MEI_D0I3_TIMEOUT            5  /* D0i3 set/unset max response time */
@@ -54,6 +53,12 @@
 #define HBM_MAJOR_VERSION_DC               2
 
 /*
+ * MEI version with immediate reply to enum request support
+ */
+#define HBM_MINOR_VERSION_IE               0
+#define HBM_MAJOR_VERSION_IE               2
+
+/*
  * MEI version with disconnect on connection timeout support
  */
 #define HBM_MINOR_VERSION_DOT              0
@@ -65,6 +70,12 @@
 #define HBM_MINOR_VERSION_EV               0
 #define HBM_MAJOR_VERSION_EV               2
 
+/*
+ * MEI version with fixed address client support
+ */
+#define HBM_MINOR_VERSION_FA               0
+#define HBM_MAJOR_VERSION_FA               2
+
 /* Host bus message command opcode */
 #define MEI_HBM_CMD_OP_MSK                  0x7f
 /* Host bus message command RESPONSE */
@@ -241,15 +252,26 @@ struct hbm_me_stop_request {
 } __packed;
 
 /**
- * struct hbm_host_enum_request -  enumeration request from host to fw
+ * enum hbm_host_enum_flags - enumeration request flags (HBM version >= 2.0)
  *
- * @hbm_cmd: bus message command header
- * @allow_add: allow dynamic clients add HBM version >= 2.0
+ * @MEI_HBM_ENUM_F_ALLOW_ADD: allow dynamic clients add
+ * @MEI_HBM_ENUM_F_IMMEDIATE_ENUM: allow FW to send answer immediately
+ */
+enum hbm_host_enum_flags {
+	MEI_HBM_ENUM_F_ALLOW_ADD = BIT(0),
+	MEI_HBM_ENUM_F_IMMEDIATE_ENUM = BIT(1),
+};
+
+/**
+ * struct hbm_host_enum_request - enumeration request from host to fw
+ *
+ * @hbm_cmd : bus message command header
+ * @flags   : request flags
  * @reserved: reserved
  */
 struct hbm_host_enum_request {
 	u8 hbm_cmd;
-	u8 allow_add;
+	u8 flags;
 	u8 reserved[2];
 } __packed;
 
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index 3edafc8..f7c8dfd 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -91,8 +91,8 @@ EXPORT_SYMBOL_GPL(mei_fw_status2str);
  */
 void mei_cancel_work(struct mei_device *dev)
 {
-	cancel_work_sync(&dev->init_work);
 	cancel_work_sync(&dev->reset_work);
+	cancel_work_sync(&dev->bus_rescan_work);
 
 	cancel_delayed_work(&dev->timer_work);
 }
@@ -148,16 +148,10 @@ int mei_reset(struct mei_device *dev)
 	    state != MEI_DEV_POWER_UP) {
 
 		/* remove all waiting requests */
-		mei_cl_all_write_clear(dev);
-
 		mei_cl_all_disconnect(dev);
 
-		/* wake up all readers and writers so they can be interrupted */
-		mei_cl_all_wakeup(dev);
-
 		/* remove entry if already in list */
-		dev_dbg(dev->dev, "remove iamthif and wd from the file list.\n");
-		mei_cl_unlink(&dev->wd_cl);
+		dev_dbg(dev->dev, "remove iamthif from the file list.\n");
 		mei_cl_unlink(&dev->iamthif_cl);
 		mei_amthif_reset_params(dev);
 	}
@@ -165,7 +159,6 @@ int mei_reset(struct mei_device *dev)
 	mei_hbm_reset(dev);
 
 	dev->rd_msg_hdr = 0;
-	dev->wd_pending = false;
 
 	if (ret) {
 		dev_err(dev->dev, "hw_reset failed ret = %d\n", ret);
@@ -335,16 +328,12 @@ void mei_stop(struct mei_device *dev)
 
 	mutex_lock(&dev->device_lock);
 
-	mei_wd_stop(dev);
-
 	dev->dev_state = MEI_DEV_POWER_DOWN;
 	mei_reset(dev);
 	/* move device to disabled state unconditionally */
 	dev->dev_state = MEI_DEV_DISABLED;
 
 	mutex_unlock(&dev->device_lock);
-
-	mei_watchdog_unregister(dev);
 }
 EXPORT_SYMBOL_GPL(mei_stop);
 
@@ -394,7 +383,6 @@ void mei_device_init(struct mei_device *dev,
 	init_waitqueue_head(&dev->wait_hw_ready);
 	init_waitqueue_head(&dev->wait_pg);
 	init_waitqueue_head(&dev->wait_hbm_start);
-	init_waitqueue_head(&dev->wait_stop_wd);
 	dev->dev_state = MEI_DEV_INITIALIZING;
 	dev->reset_count = 0;
 
@@ -404,13 +392,11 @@ void mei_device_init(struct mei_device *dev,
 	mei_io_list_init(&dev->ctrl_rd_list);
 
 	INIT_DELAYED_WORK(&dev->timer_work, mei_timer);
-	INIT_WORK(&dev->init_work, mei_host_client_init);
 	INIT_WORK(&dev->reset_work, mei_reset_work);
+	INIT_WORK(&dev->bus_rescan_work, mei_cl_bus_rescan_work);
 
-	INIT_LIST_HEAD(&dev->wd_cl.link);
 	INIT_LIST_HEAD(&dev->iamthif_cl.link);
 	mei_io_list_init(&dev->amthif_cmd_list);
-	mei_io_list_init(&dev->amthif_rd_complete_list);
 
 	bitmap_zero(dev->host_clients_map, MEI_CLIENTS_MAX);
 	dev->open_handle_count = 0;
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 64b568a..1e5cb1f 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -48,7 +48,7 @@ void mei_irq_compl_handler(struct mei_device *dev, struct mei_cl_cb *compl_list)
 
 		dev_dbg(dev->dev, "completing call back.\n");
 		if (cl == &dev->iamthif_cl)
-			mei_amthif_complete(dev, cb);
+			mei_amthif_complete(cl, cb);
 		else
 			mei_cl_complete(cl, cb);
 	}
@@ -104,6 +104,7 @@ int mei_cl_irq_read_msg(struct mei_cl *cl,
 	struct mei_device *dev = cl->dev;
 	struct mei_cl_cb *cb;
 	unsigned char *buffer = NULL;
+	size_t buf_sz;
 
 	cb = list_first_entry_or_null(&cl->rd_pending, struct mei_cl_cb, list);
 	if (!cb) {
@@ -124,11 +125,21 @@ int mei_cl_irq_read_msg(struct mei_cl *cl,
 		goto out;
 	}
 
-	if (cb->buf.size < mei_hdr->length + cb->buf_idx) {
-		cl_dbg(dev, cl, "message overflow. size %d len %d idx %ld\n",
+	buf_sz = mei_hdr->length + cb->buf_idx;
+	/* catch for integer overflow */
+	if (buf_sz < cb->buf_idx) {
+		cl_err(dev, cl, "message is too big len %d idx %zu\n",
+		       mei_hdr->length, cb->buf_idx);
+
+		list_move_tail(&cb->list, &complete_list->list);
+		cb->status = -EMSGSIZE;
+		goto out;
+	}
+
+	if (cb->buf.size < buf_sz) {
+		cl_dbg(dev, cl, "message overflow. size %zu len %d idx %zu\n",
 			cb->buf.size, mei_hdr->length, cb->buf_idx);
-		buffer = krealloc(cb->buf.data, mei_hdr->length + cb->buf_idx,
-				  GFP_KERNEL);
+		buffer = krealloc(cb->buf.data, buf_sz, GFP_KERNEL);
 
 		if (!buffer) {
 			cb->status = -ENOMEM;
@@ -136,7 +147,7 @@ int mei_cl_irq_read_msg(struct mei_cl *cl,
 			goto out;
 		}
 		cb->buf.data = buffer;
-		cb->buf.size = mei_hdr->length + cb->buf_idx;
+		cb->buf.size = buf_sz;
 	}
 
 	buffer = cb->buf.data + cb->buf_idx;
@@ -145,8 +156,7 @@ int mei_cl_irq_read_msg(struct mei_cl *cl,
 	cb->buf_idx += mei_hdr->length;
 
 	if (mei_hdr->msg_complete) {
-		cb->read_time = jiffies;
-		cl_dbg(dev, cl, "completed read length = %lu\n", cb->buf_idx);
+		cl_dbg(dev, cl, "completed read length = %zu\n", cb->buf_idx);
 		list_move_tail(&cb->list, &complete_list->list);
 	} else {
 		pm_runtime_mark_last_busy(dev->dev);
@@ -229,6 +239,16 @@ static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb,
 	return 0;
 }
 
+static inline bool hdr_is_hbm(struct mei_msg_hdr *mei_hdr)
+{
+	return mei_hdr->host_addr == 0 && mei_hdr->me_addr == 0;
+}
+
+static inline bool hdr_is_fixed(struct mei_msg_hdr *mei_hdr)
+{
+	return mei_hdr->host_addr == 0 && mei_hdr->me_addr != 0;
+}
+
 /**
  * mei_irq_read_handler - bottom half read routine after ISR to
  * handle the read processing.
@@ -270,7 +290,7 @@ int mei_irq_read_handler(struct mei_device *dev,
 	}
 
 	/*  HBM message */
-	if (mei_hdr->host_addr == 0 && mei_hdr->me_addr == 0) {
+	if (hdr_is_hbm(mei_hdr)) {
 		ret = mei_hbm_dispatch(dev, mei_hdr);
 		if (ret) {
 			dev_dbg(dev->dev, "mei_hbm_dispatch failed ret = %d\n",
@@ -290,6 +310,14 @@ int mei_irq_read_handler(struct mei_device *dev,
 
 	/* if no recipient cl was found we assume corrupted header */
 	if (&cl->link == &dev->file_list) {
+		/* A message for not connected fixed address clients
+		 * should be silently discarded
+		 */
+		if (hdr_is_fixed(mei_hdr)) {
+			mei_irq_discard_msg(dev, mei_hdr);
+			ret = 0;
+			goto reset_slots;
+		}
 		dev_err(dev->dev, "no destination client found 0x%08X\n",
 				dev->rd_msg_hdr);
 		ret = -EBADMSG;
@@ -360,21 +388,6 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
 		list_move_tail(&cb->list, &cmpl_list->list);
 	}
 
-	if (dev->wd_state == MEI_WD_STOPPING) {
-		dev->wd_state = MEI_WD_IDLE;
-		wake_up(&dev->wait_stop_wd);
-	}
-
-	if (mei_cl_is_connected(&dev->wd_cl)) {
-		if (dev->wd_pending &&
-		    mei_cl_flow_ctrl_creds(&dev->wd_cl) > 0) {
-			ret = mei_wd_send(dev);
-			if (ret)
-				return ret;
-			dev->wd_pending = false;
-		}
-	}
-
 	/* complete control write list CB */
 	dev_dbg(dev->dev, "complete control write list cb.\n");
 	list_for_each_entry_safe(cb, next, &dev->ctrl_wr_list.list, list) {
@@ -462,7 +475,6 @@ static void mei_connect_timeout(struct mei_cl *cl)
  */
 void mei_timer(struct work_struct *work)
 {
-	unsigned long timeout;
 	struct mei_cl *cl;
 
 	struct mei_device *dev = container_of(work,
@@ -508,45 +520,15 @@ void mei_timer(struct work_struct *work)
 			mei_reset(dev);
 			dev->iamthif_canceled = false;
 			dev->iamthif_state = MEI_IAMTHIF_IDLE;
-			dev->iamthif_timer = 0;
 
 			mei_io_cb_free(dev->iamthif_current_cb);
 			dev->iamthif_current_cb = NULL;
 
-			dev->iamthif_file_object = NULL;
+			dev->iamthif_fp = NULL;
 			mei_amthif_run_next_cmd(dev);
 		}
 	}
 
-	if (dev->iamthif_timer) {
-
-		timeout = dev->iamthif_timer +
-			mei_secs_to_jiffies(MEI_IAMTHIF_READ_TIMER);
-
-		dev_dbg(dev->dev, "dev->iamthif_timer = %ld\n",
-				dev->iamthif_timer);
-		dev_dbg(dev->dev, "timeout = %ld\n", timeout);
-		dev_dbg(dev->dev, "jiffies = %ld\n", jiffies);
-		if (time_after(jiffies, timeout)) {
-			/*
-			 * User didn't read the AMTHI data on time (15sec)
-			 * freeing AMTHI for other requests
-			 */
-
-			dev_dbg(dev->dev, "freeing AMTHI for other requests\n");
-
-			mei_io_list_flush(&dev->amthif_rd_complete_list,
-				&dev->iamthif_cl);
-			mei_io_cb_free(dev->iamthif_current_cb);
-			dev->iamthif_current_cb = NULL;
-
-			dev->iamthif_file_object->private_data = NULL;
-			dev->iamthif_file_object = NULL;
-			dev->iamthif_timer = 0;
-			mei_amthif_run_next_cmd(dev);
-
-		}
-	}
 out:
 	if (dev->dev_state != MEI_DEV_DISABLED)
 		schedule_delayed_work(&dev->timer_work, 2 * HZ);
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 677d0362..52635b0 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -65,7 +65,7 @@ static int mei_open(struct inode *inode, struct file *file)
 		goto err_unlock;
 	}
 
-	cl = mei_cl_alloc_linked(dev, MEI_HOST_CLIENT_ID_ANY);
+	cl = mei_cl_alloc_linked(dev);
 	if (IS_ERR(cl)) {
 		err = PTR_ERR(cl);
 		goto err_unlock;
@@ -159,27 +159,22 @@ static ssize_t mei_read(struct file *file, char __user *ubuf,
 		goto out;
 	}
 
+	if (ubuf == NULL) {
+		rets = -EMSGSIZE;
+		goto out;
+	}
+
 	if (cl == &dev->iamthif_cl) {
 		rets = mei_amthif_read(dev, file, ubuf, length, offset);
 		goto out;
 	}
 
 	cb = mei_cl_read_cb(cl, file);
-	if (cb) {
-		/* read what left */
-		if (cb->buf_idx > *offset)
-			goto copy_buffer;
-		/* offset is beyond buf_idx we have no more data return 0 */
-		if (cb->buf_idx > 0 && cb->buf_idx <= *offset) {
-			rets = 0;
-			goto free;
-		}
-		/* Offset needs to be cleaned for contiguous reads*/
-		if (cb->buf_idx == 0 && *offset > 0)
-			*offset = 0;
-	} else if (*offset > 0) {
+	if (cb)
+		goto copy_buffer;
+
+	if (*offset > 0)
 		*offset = 0;
-	}
 
 	err = mei_cl_read_start(cl, length, file);
 	if (err && err != -EBUSY) {
@@ -214,11 +209,6 @@ static ssize_t mei_read(struct file *file, char __user *ubuf,
 
 	cb = mei_cl_read_cb(cl, file);
 	if (!cb) {
-		if (mei_cl_is_fixed_address(cl) && dev->allow_fixed_address) {
-			cb = mei_cl_read_cb(cl, NULL);
-			if (cb)
-				goto copy_buffer;
-		}
 		rets = 0;
 		goto out;
 	}
@@ -231,10 +221,10 @@ copy_buffer:
 		goto free;
 	}
 
-	cl_dbg(dev, cl, "buf.size = %d buf.idx = %ld\n",
-	    cb->buf.size, cb->buf_idx);
-	if (length == 0 || ubuf == NULL || *offset > cb->buf_idx) {
-		rets = -EMSGSIZE;
+	cl_dbg(dev, cl, "buf.size = %zu buf.idx = %zu offset = %lld\n",
+	       cb->buf.size, cb->buf_idx, *offset);
+	if (*offset >= cb->buf_idx) {
+		rets = 0;
 		goto free;
 	}
 
@@ -250,11 +240,13 @@ copy_buffer:
 
 	rets = length;
 	*offset += length;
-	if ((unsigned long)*offset < cb->buf_idx)
+	/* not all data was read, keep the cb */
+	if (*offset < cb->buf_idx)
 		goto out;
 
 free:
 	mei_io_cb_free(cb);
+	*offset = 0;
 
 out:
 	cl_dbg(dev, cl, "end mei read rets = %d\n", rets);
@@ -275,9 +267,8 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 			 size_t length, loff_t *offset)
 {
 	struct mei_cl *cl = file->private_data;
-	struct mei_cl_cb *write_cb = NULL;
+	struct mei_cl_cb *cb;
 	struct mei_device *dev;
-	unsigned long timeout = 0;
 	int rets;
 
 	if (WARN_ON(!cl || !cl->dev))
@@ -313,52 +304,31 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 		goto out;
 	}
 
-	if (cl == &dev->iamthif_cl) {
-		write_cb = mei_amthif_find_read_list_entry(dev, file);
-
-		if (write_cb) {
-			timeout = write_cb->read_time +
-				mei_secs_to_jiffies(MEI_IAMTHIF_READ_TIMER);
-
-			if (time_after(jiffies, timeout)) {
-				*offset = 0;
-				mei_io_cb_free(write_cb);
-				write_cb = NULL;
-			}
-		}
-	}
-
 	*offset = 0;
-	write_cb = mei_cl_alloc_cb(cl, length, MEI_FOP_WRITE, file);
-	if (!write_cb) {
+	cb = mei_cl_alloc_cb(cl, length, MEI_FOP_WRITE, file);
+	if (!cb) {
 		rets = -ENOMEM;
 		goto out;
 	}
 
-	rets = copy_from_user(write_cb->buf.data, ubuf, length);
+	rets = copy_from_user(cb->buf.data, ubuf, length);
 	if (rets) {
 		dev_dbg(dev->dev, "failed to copy data from userland\n");
 		rets = -EFAULT;
+		mei_io_cb_free(cb);
 		goto out;
 	}
 
 	if (cl == &dev->iamthif_cl) {
-		rets = mei_amthif_write(cl, write_cb);
-
-		if (rets) {
-			dev_err(dev->dev,
-				"amthif write failed with status = %d\n", rets);
-			goto out;
-		}
-		mutex_unlock(&dev->device_lock);
-		return length;
+		rets = mei_amthif_write(cl, cb);
+		if (!rets)
+			rets = length;
+		goto out;
 	}
 
-	rets = mei_cl_write(cl, write_cb, false);
+	rets = mei_cl_write(cl, cb, false);
 out:
 	mutex_unlock(&dev->device_lock);
-	if (rets < 0)
-		mei_io_cb_free(write_cb);
 	return rets;
 }
 
@@ -393,12 +363,22 @@ static int mei_ioctl_connect_client(struct file *file,
 
 	/* find ME client we're trying to connect to */
 	me_cl = mei_me_cl_by_uuid(dev, &data->in_client_uuid);
-	if (!me_cl ||
-	    (me_cl->props.fixed_address && !dev->allow_fixed_address)) {
+	if (!me_cl) {
 		dev_dbg(dev->dev, "Cannot connect to FW Client UUID = %pUl\n",
 			&data->in_client_uuid);
-		mei_me_cl_put(me_cl);
-		return  -ENOTTY;
+		rets = -ENOTTY;
+		goto end;
+	}
+
+	if (me_cl->props.fixed_address) {
+		bool forbidden = dev->override_fixed_address ?
+			 !dev->allow_fixed_address : !dev->hbm_f_fa_supported;
+		if (forbidden) {
+			dev_dbg(dev->dev, "Connection forbidden to FW Client UUID = %pUl\n",
+				&data->in_client_uuid);
+			rets = -ENOTTY;
+			goto end;
+		}
 	}
 
 	dev_dbg(dev->dev, "Connect to FW Client ID = %d\n",
@@ -454,11 +434,15 @@ end:
  *
  * Return: 0 on success , <0 on error
  */
-static int mei_ioctl_client_notify_request(struct file *file, u32 request)
+static int mei_ioctl_client_notify_request(const struct file *file, u32 request)
 {
 	struct mei_cl *cl = file->private_data;
 
-	return mei_cl_notify_request(cl, file, request);
+	if (request != MEI_HBM_NOTIFICATION_START &&
+	    request != MEI_HBM_NOTIFICATION_STOP)
+		return -EINVAL;
+
+	return mei_cl_notify_request(cl, file, (u8)request);
 }
 
 /**
@@ -469,7 +453,7 @@ static int mei_ioctl_client_notify_request(struct file *file, u32 request)
  *
  * Return: 0 on success , <0 on error
  */
-static int mei_ioctl_client_notify_get(struct file *file, u32 *notify_get)
+static int mei_ioctl_client_notify_get(const struct file *file, u32 *notify_get)
 {
 	struct mei_cl *cl = file->private_data;
 	bool notify_ev;
diff --git a/drivers/misc/mei/mei-trace.c b/drivers/misc/mei/mei-trace.c
index 388efb5..e19e6ac 100644
--- a/drivers/misc/mei/mei-trace.c
+++ b/drivers/misc/mei/mei-trace.c
@@ -22,4 +22,6 @@
 
 EXPORT_TRACEPOINT_SYMBOL(mei_reg_read);
 EXPORT_TRACEPOINT_SYMBOL(mei_reg_write);
+EXPORT_TRACEPOINT_SYMBOL(mei_pci_cfg_read);
+EXPORT_TRACEPOINT_SYMBOL(mei_pci_cfg_write);
 #endif /* __CHECKER__ */
diff --git a/drivers/misc/mei/mei-trace.h b/drivers/misc/mei/mei-trace.h
index 47e1bc6..7d2d5d4 100644
--- a/drivers/misc/mei/mei-trace.h
+++ b/drivers/misc/mei/mei-trace.h
@@ -60,7 +60,45 @@ TRACE_EVENT(mei_reg_write,
 		__entry->offs = offs;
 		__entry->val = val;
 	),
-	TP_printk("[%s] write %s[%#x] = %#x)",
+	TP_printk("[%s] write %s[%#x] = %#x",
+		  __get_str(dev), __entry->reg,  __entry->offs, __entry->val)
+);
+
+TRACE_EVENT(mei_pci_cfg_read,
+	TP_PROTO(const struct device *dev, const char *reg, u32 offs, u32 val),
+	TP_ARGS(dev, reg, offs, val),
+	TP_STRUCT__entry(
+		__string(dev, dev_name(dev))
+		__field(const char *, reg)
+		__field(u32, offs)
+		__field(u32, val)
+	),
+	TP_fast_assign(
+		__assign_str(dev, dev_name(dev))
+		__entry->reg  = reg;
+		__entry->offs = offs;
+		__entry->val = val;
+	),
+	TP_printk("[%s] pci cfg read %s:[%#x] = %#x",
+		  __get_str(dev), __entry->reg, __entry->offs, __entry->val)
+);
+
+TRACE_EVENT(mei_pci_cfg_write,
+	TP_PROTO(const struct device *dev, const char *reg, u32 offs, u32 val),
+	TP_ARGS(dev, reg, offs, val),
+	TP_STRUCT__entry(
+		__string(dev, dev_name(dev))
+		__field(const char *, reg)
+		__field(u32, offs)
+		__field(u32, val)
+	),
+	TP_fast_assign(
+		__assign_str(dev, dev_name(dev))
+		__entry->reg = reg;
+		__entry->offs = offs;
+		__entry->val = val;
+	),
+	TP_printk("[%s] pci cfg write %s[%#x] = %#x",
 		  __get_str(dev), __entry->reg,  __entry->offs, __entry->val)
 );
 
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 4250555..db78e6d 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -18,7 +18,7 @@
 #define _MEI_DEV_H_
 
 #include <linux/types.h>
-#include <linux/watchdog.h>
+#include <linux/cdev.h>
 #include <linux/poll.h>
 #include <linux/mei.h>
 #include <linux/mei_cl_bus.h>
@@ -26,33 +26,13 @@
 #include "hw.h"
 #include "hbm.h"
 
-/*
- * watch dog definition
- */
-#define MEI_WD_HDR_SIZE       4
-#define MEI_WD_STOP_MSG_SIZE  MEI_WD_HDR_SIZE
-#define MEI_WD_START_MSG_SIZE (MEI_WD_HDR_SIZE + 16)
-
-#define MEI_WD_DEFAULT_TIMEOUT   120  /* seconds */
-#define MEI_WD_MIN_TIMEOUT       120  /* seconds */
-#define MEI_WD_MAX_TIMEOUT     65535  /* seconds */
-
-#define MEI_WD_STOP_TIMEOUT      10 /* msecs */
-
-#define MEI_WD_STATE_INDEPENDENCE_MSG_SENT       (1 << 0)
-
-#define MEI_RD_MSG_BUF_SIZE           (128 * sizeof(u32))
-
 
 /*
  * AMTHI Client UUID
  */
 extern const uuid_le mei_amthif_guid;
 
-/*
- * Watchdog Client UUID
- */
-extern const uuid_le mei_wd_guid;
+#define MEI_RD_MSG_BUF_SIZE           (128 * sizeof(u32))
 
 /*
  * Number of Maximum MEI Clients
@@ -73,15 +53,6 @@ extern const uuid_le mei_wd_guid;
  */
 #define  MEI_MAX_OPEN_HANDLE_COUNT (MEI_CLIENTS_MAX - 1)
 
-/*
- * Internal Clients Number
- */
-#define MEI_HOST_CLIENT_ID_ANY        (-1)
-#define MEI_HBM_HOST_CLIENT_ID         0 /* not used, just for documentation */
-#define MEI_WD_HOST_CLIENT_ID          1
-#define MEI_IAMTHIF_HOST_CLIENT_ID     2
-
-
 /* File state */
 enum file_state {
 	MEI_FILE_INITIALIZING = 0,
@@ -123,12 +94,6 @@ enum mei_file_transaction_states {
 	MEI_READ_COMPLETE
 };
 
-enum mei_wd_states {
-	MEI_WD_IDLE,
-	MEI_WD_RUNNING,
-	MEI_WD_STOPPING,
-};
-
 /**
  * enum mei_cb_file_ops  - file operation associated with the callback
  * @MEI_FOP_READ:       read
@@ -153,7 +118,7 @@ enum mei_cb_file_ops {
  * Intel MEI message data struct
  */
 struct mei_msg_data {
-	u32 size;
+	size_t size;
 	unsigned char *data;
 };
 
@@ -206,8 +171,7 @@ struct mei_cl;
  * @fop_type: file operation type
  * @buf: buffer for data associated with the callback
  * @buf_idx: last read index
- * @read_time: last read operation time stamp (iamthif)
- * @file_object: pointer to file structure
+ * @fp: pointer to file structure
  * @status: io status of the cb
  * @internal: communication between driver and FW flag
  * @completed: the transfer or reception has completed
@@ -217,9 +181,8 @@ struct mei_cl_cb {
 	struct mei_cl *cl;
 	enum mei_cb_file_ops fop_type;
 	struct mei_msg_data buf;
-	unsigned long buf_idx;
-	unsigned long read_time;
-	struct file *file_object;
+	size_t buf_idx;
+	const struct file *fp;
 	int status;
 	u32 internal:1;
 	u32 completed:1;
@@ -341,12 +304,13 @@ struct mei_hw_ops {
 
 /* MEI bus API*/
 void mei_cl_bus_rescan(struct mei_device *bus);
+void mei_cl_bus_rescan_work(struct work_struct *work);
 void mei_cl_bus_dev_fixup(struct mei_cl_device *dev);
 ssize_t __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
 			bool blocking);
 ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length);
-void mei_cl_bus_rx_event(struct mei_cl *cl);
-void mei_cl_bus_notify_event(struct mei_cl *cl);
+bool mei_cl_bus_rx_event(struct mei_cl *cl);
+bool mei_cl_bus_notify_event(struct mei_cl *cl);
 void mei_cl_bus_remove_devices(struct mei_device *bus);
 int mei_cl_bus_init(void);
 void mei_cl_bus_exit(void);
@@ -404,7 +368,6 @@ const char *mei_pg_state_str(enum mei_pg_state state);
  * @wait_hw_ready : wait queue for receive HW ready message form FW
  * @wait_pg     : wait queue for receive PG message from FW
  * @wait_hbm_start : wait queue for receive HBM start message from FW
- * @wait_stop_wd : wait queue for receive WD stop message from FW
  *
  * @reset_count : number of consecutive resets
  * @dev_state   : device state
@@ -426,6 +389,8 @@ const char *mei_pg_state_str(enum mei_pg_state state);
  * @hbm_f_dc_supported  : hbm feature dynamic clients
  * @hbm_f_dot_supported : hbm feature disconnect on timeout
  * @hbm_f_ev_supported  : hbm feature event notification
+ * @hbm_f_fa_supported  : hbm feature fixed address client
+ * @hbm_f_ie_supported  : hbm feature immediate reply to enum request
  *
  * @me_clients_rwsem: rw lock over me_clients list
  * @me_clients  : list of FW clients
@@ -434,26 +399,19 @@ const char *mei_pg_state_str(enum mei_pg_state state);
  * @me_client_index : last FW client index in enumeration
  *
  * @allow_fixed_address: allow user space to connect a fixed client
- *
- * @wd_cl       : watchdog client
- * @wd_state    : watchdog client state
- * @wd_pending  : watchdog command is pending
- * @wd_timeout  : watchdog expiration timeout
- * @wd_data     : watchdog message buffer
+ * @override_fixed_address: force allow fixed address behavior
  *
  * @amthif_cmd_list : amthif list for cmd waiting
- * @amthif_rd_complete_list : amthif list for reading completed cmd data
- * @iamthif_file_object : file for current amthif operation
+ * @iamthif_fp : file for current amthif operation
  * @iamthif_cl  : amthif host client
  * @iamthif_current_cb : amthif current operation callback
  * @iamthif_open_count : number of opened amthif connections
- * @iamthif_timer : time stamp of current amthif command completion
  * @iamthif_stall_timer : timer to detect amthif hang
  * @iamthif_state : amthif processor state
  * @iamthif_canceled : current amthif command is canceled
  *
- * @init_work   : work item for the device init
  * @reset_work  : work item for the device reset
+ * @bus_rescan_work : work item for the bus rescan
  *
  * @device_list : mei client bus list
  * @cl_bus_lock : client bus list lock
@@ -486,7 +444,6 @@ struct mei_device {
 	wait_queue_head_t wait_hw_ready;
 	wait_queue_head_t wait_pg;
 	wait_queue_head_t wait_hbm_start;
-	wait_queue_head_t wait_stop_wd;
 
 	/*
 	 * mei device  states
@@ -522,6 +479,8 @@ struct mei_device {
 	unsigned int hbm_f_dc_supported:1;
 	unsigned int hbm_f_dot_supported:1;
 	unsigned int hbm_f_ev_supported:1;
+	unsigned int hbm_f_fa_supported:1;
+	unsigned int hbm_f_ie_supported:1;
 
 	struct rw_semaphore me_clients_rwsem;
 	struct list_head me_clients;
@@ -530,29 +489,21 @@ struct mei_device {
 	unsigned long me_client_index;
 
 	bool allow_fixed_address;
-
-	struct mei_cl wd_cl;
-	enum mei_wd_states wd_state;
-	bool wd_pending;
-	u16 wd_timeout;
-	unsigned char wd_data[MEI_WD_START_MSG_SIZE];
-
+	bool override_fixed_address;
 
 	/* amthif list for cmd waiting */
 	struct mei_cl_cb amthif_cmd_list;
 	/* driver managed amthif list for reading completed amthif cmd data */
-	struct mei_cl_cb amthif_rd_complete_list;
-	struct file *iamthif_file_object;
+	const struct file *iamthif_fp;
 	struct mei_cl iamthif_cl;
 	struct mei_cl_cb *iamthif_current_cb;
 	long iamthif_open_count;
-	unsigned long iamthif_timer;
 	u32 iamthif_stall_timer;
 	enum iamthif_states iamthif_state;
 	bool iamthif_canceled;
 
-	struct work_struct init_work;
 	struct work_struct reset_work;
+	struct work_struct bus_rescan_work;
 
 	/* List of bus devices */
 	struct list_head device_list;
@@ -635,47 +586,18 @@ unsigned int mei_amthif_poll(struct mei_device *dev,
 
 int mei_amthif_release(struct mei_device *dev, struct file *file);
 
-struct mei_cl_cb *mei_amthif_find_read_list_entry(struct mei_device *dev,
-						struct file *file);
-
 int mei_amthif_write(struct mei_cl *cl, struct mei_cl_cb *cb);
 int mei_amthif_run_next_cmd(struct mei_device *dev);
 int mei_amthif_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb,
 			struct mei_cl_cb *cmpl_list);
 
-void mei_amthif_complete(struct mei_device *dev, struct mei_cl_cb *cb);
+void mei_amthif_complete(struct mei_cl *cl, struct mei_cl_cb *cb);
 int mei_amthif_irq_read_msg(struct mei_cl *cl,
 			    struct mei_msg_hdr *mei_hdr,
 			    struct mei_cl_cb *complete_list);
 int mei_amthif_irq_read(struct mei_device *dev, s32 *slots);
 
 /*
- * NFC functions
- */
-int mei_nfc_host_init(struct mei_device *dev, struct mei_me_client *me_cl);
-void mei_nfc_host_exit(struct mei_device *dev);
-
-/*
- * NFC Client UUID
- */
-extern const uuid_le mei_nfc_guid;
-
-int mei_wd_send(struct mei_device *dev);
-int mei_wd_stop(struct mei_device *dev);
-int mei_wd_host_init(struct mei_device *dev, struct mei_me_client *me_cl);
-/*
- * mei_watchdog_register  - Registering watchdog interface
- *   once we got connection to the WD Client
- * @dev: mei device
- */
-int mei_watchdog_register(struct mei_device *dev);
-/*
- * mei_watchdog_unregister  - Unregistering watchdog interface
- * @dev: mei device
- */
-void mei_watchdog_unregister(struct mei_device *dev);
-
-/*
  * Register Access Function
  */
 
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 75fc9c6..996344f 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -210,7 +210,7 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	err = mei_register(dev, &pdev->dev);
 	if (err)
-		goto release_irq;
+		goto stop;
 
 	pci_set_drvdata(pdev, dev);
 
@@ -231,6 +231,8 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	return 0;
 
+stop:
+	mei_stop(dev);
 release_irq:
 	mei_cancel_work(dev);
 	mei_disable_interrupts(dev);
diff --git a/drivers/misc/mei/pci-txe.c b/drivers/misc/mei/pci-txe.c
index 71f8a74..30cc306 100644
--- a/drivers/misc/mei/pci-txe.c
+++ b/drivers/misc/mei/pci-txe.c
@@ -154,7 +154,7 @@ static int mei_txe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	err = mei_register(dev, &pdev->dev);
 	if (err)
-		goto release_irq;
+		goto stop;
 
 	pci_set_drvdata(pdev, dev);
 
@@ -170,6 +170,8 @@ static int mei_txe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	return 0;
 
+stop:
+	mei_stop(dev);
 release_irq:
 
 	mei_cancel_work(dev);
diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c
deleted file mode 100644
index b346638..0000000
--- a/drivers/misc/mei/wd.c
+++ /dev/null
@@ -1,391 +0,0 @@
-/*
- *
- * Intel Management Engine Interface (Intel MEI) Linux driver
- * Copyright (c) 2003-2012, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/device.h>
-#include <linux/sched.h>
-#include <linux/watchdog.h>
-
-#include <linux/mei.h>
-
-#include "mei_dev.h"
-#include "hbm.h"
-#include "client.h"
-
-static const u8 mei_start_wd_params[] = { 0x02, 0x12, 0x13, 0x10 };
-static const u8 mei_stop_wd_params[] = { 0x02, 0x02, 0x14, 0x10 };
-
-/*
- * AMT Watchdog Device
- */
-#define INTEL_AMT_WATCHDOG_ID "INTCAMT"
-
-/* UUIDs for AMT F/W clients */
-const uuid_le mei_wd_guid = UUID_LE(0x05B79A6F, 0x4628, 0x4D7F, 0x89,
-						0x9D, 0xA9, 0x15, 0x14, 0xCB,
-						0x32, 0xAB);
-
-static void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout)
-{
-	dev_dbg(dev->dev, "wd: set timeout=%d.\n", timeout);
-	memcpy(dev->wd_data, mei_start_wd_params, MEI_WD_HDR_SIZE);
-	memcpy(dev->wd_data + MEI_WD_HDR_SIZE, &timeout, sizeof(u16));
-}
-
-/**
- * mei_wd_host_init - connect to the watchdog client
- *
- * @dev: the device structure
- * @me_cl: me client
- *
- * Return: -ENOTTY if wd client cannot be found
- *         -EIO if write has failed
- *         0 on success
- */
-int mei_wd_host_init(struct mei_device *dev, struct mei_me_client *me_cl)
-{
-	struct mei_cl *cl = &dev->wd_cl;
-	int ret;
-
-	mei_cl_init(cl, dev);
-
-	dev->wd_timeout = MEI_WD_DEFAULT_TIMEOUT;
-	dev->wd_state = MEI_WD_IDLE;
-
-	ret = mei_cl_link(cl, MEI_WD_HOST_CLIENT_ID);
-	if (ret < 0) {
-		dev_info(dev->dev, "wd: failed link client\n");
-		return ret;
-	}
-
-	ret = mei_cl_connect(cl, me_cl, NULL);
-	if (ret) {
-		dev_err(dev->dev, "wd: failed to connect = %d\n", ret);
-		mei_cl_unlink(cl);
-		return ret;
-	}
-
-	ret = mei_watchdog_register(dev);
-	if (ret) {
-		mei_cl_disconnect(cl);
-		mei_cl_unlink(cl);
-	}
-	return ret;
-}
-
-/**
- * mei_wd_send - sends watch dog message to fw.
- *
- * @dev: the device structure
- *
- * Return: 0 if success,
- *	-EIO when message send fails
- *	-EINVAL when invalid message is to be sent
- *	-ENODEV on flow control failure
- */
-int mei_wd_send(struct mei_device *dev)
-{
-	struct mei_cl *cl = &dev->wd_cl;
-	struct mei_msg_hdr hdr;
-	int ret;
-
-	hdr.host_addr = cl->host_client_id;
-	hdr.me_addr = mei_cl_me_id(cl);
-	hdr.msg_complete = 1;
-	hdr.reserved = 0;
-	hdr.internal = 0;
-
-	if (!memcmp(dev->wd_data, mei_start_wd_params, MEI_WD_HDR_SIZE))
-		hdr.length = MEI_WD_START_MSG_SIZE;
-	else if (!memcmp(dev->wd_data, mei_stop_wd_params, MEI_WD_HDR_SIZE))
-		hdr.length = MEI_WD_STOP_MSG_SIZE;
-	else {
-		dev_err(dev->dev, "wd: invalid message is to be sent, aborting\n");
-		return -EINVAL;
-	}
-
-	ret = mei_write_message(dev, &hdr, dev->wd_data);
-	if (ret) {
-		dev_err(dev->dev, "wd: write message failed\n");
-		return ret;
-	}
-
-	ret = mei_cl_flow_ctrl_reduce(cl);
-	if (ret) {
-		dev_err(dev->dev, "wd: flow_ctrl_reduce failed.\n");
-		return ret;
-	}
-
-	return 0;
-}
-
-/**
- * mei_wd_stop - sends watchdog stop message to fw.
- *
- * @dev: the device structure
- *
- * Return: 0 if success
- * on error:
- *	-EIO    when message send fails
- *	-EINVAL when invalid message is to be sent
- *	-ETIME  on message timeout
- */
-int mei_wd_stop(struct mei_device *dev)
-{
-	struct mei_cl *cl = &dev->wd_cl;
-	int ret;
-
-	if (!mei_cl_is_connected(cl) ||
-	    dev->wd_state != MEI_WD_RUNNING)
-		return 0;
-
-	memcpy(dev->wd_data, mei_stop_wd_params, MEI_WD_STOP_MSG_SIZE);
-
-	dev->wd_state = MEI_WD_STOPPING;
-
-	ret = mei_cl_flow_ctrl_creds(cl);
-	if (ret < 0)
-		goto err;
-
-	if (ret && mei_hbuf_acquire(dev)) {
-		ret = mei_wd_send(dev);
-		if (ret)
-			goto err;
-		dev->wd_pending = false;
-	} else {
-		dev->wd_pending = true;
-	}
-
-	mutex_unlock(&dev->device_lock);
-
-	ret = wait_event_timeout(dev->wait_stop_wd,
-				dev->wd_state == MEI_WD_IDLE,
-				msecs_to_jiffies(MEI_WD_STOP_TIMEOUT));
-	mutex_lock(&dev->device_lock);
-	if (dev->wd_state != MEI_WD_IDLE) {
-		/* timeout */
-		ret = -ETIME;
-		dev_warn(dev->dev, "wd: stop failed to complete ret=%d\n", ret);
-		goto err;
-	}
-	dev_dbg(dev->dev, "wd: stop completed after %u msec\n",
-			MEI_WD_STOP_TIMEOUT - jiffies_to_msecs(ret));
-	return 0;
-err:
-	return ret;
-}
-
-/**
- * mei_wd_ops_start - wd start command from the watchdog core.
- *
- * @wd_dev: watchdog device struct
- *
- * Return: 0 if success, negative errno code for failure
- */
-static int mei_wd_ops_start(struct watchdog_device *wd_dev)
-{
-	struct mei_device *dev;
-	struct mei_cl *cl;
-	int err = -ENODEV;
-
-	dev = watchdog_get_drvdata(wd_dev);
-	if (!dev)
-		return -ENODEV;
-
-	cl = &dev->wd_cl;
-
-	mutex_lock(&dev->device_lock);
-
-	if (dev->dev_state != MEI_DEV_ENABLED) {
-		dev_dbg(dev->dev, "wd: dev_state != MEI_DEV_ENABLED  dev_state = %s\n",
-			mei_dev_state_str(dev->dev_state));
-		goto end_unlock;
-	}
-
-	if (!mei_cl_is_connected(cl)) {
-		cl_dbg(dev, cl, "MEI Driver is not connected to Watchdog Client\n");
-		goto end_unlock;
-	}
-
-	mei_wd_set_start_timeout(dev, dev->wd_timeout);
-
-	err = 0;
-end_unlock:
-	mutex_unlock(&dev->device_lock);
-	return err;
-}
-
-/**
- * mei_wd_ops_stop -  wd stop command from the watchdog core.
- *
- * @wd_dev: watchdog device struct
- *
- * Return: 0 if success, negative errno code for failure
- */
-static int mei_wd_ops_stop(struct watchdog_device *wd_dev)
-{
-	struct mei_device *dev;
-
-	dev = watchdog_get_drvdata(wd_dev);
-	if (!dev)
-		return -ENODEV;
-
-	mutex_lock(&dev->device_lock);
-	mei_wd_stop(dev);
-	mutex_unlock(&dev->device_lock);
-
-	return 0;
-}
-
-/**
- * mei_wd_ops_ping - wd ping command from the watchdog core.
- *
- * @wd_dev: watchdog device struct
- *
- * Return: 0 if success, negative errno code for failure
- */
-static int mei_wd_ops_ping(struct watchdog_device *wd_dev)
-{
-	struct mei_device *dev;
-	struct mei_cl *cl;
-	int ret;
-
-	dev = watchdog_get_drvdata(wd_dev);
-	if (!dev)
-		return -ENODEV;
-
-	cl = &dev->wd_cl;
-
-	mutex_lock(&dev->device_lock);
-
-	if (!mei_cl_is_connected(cl)) {
-		cl_err(dev, cl, "wd: not connected.\n");
-		ret = -ENODEV;
-		goto end;
-	}
-
-	dev->wd_state = MEI_WD_RUNNING;
-
-	ret = mei_cl_flow_ctrl_creds(cl);
-	if (ret < 0)
-		goto end;
-
-	/* Check if we can send the ping to HW*/
-	if (ret && mei_hbuf_acquire(dev)) {
-		dev_dbg(dev->dev, "wd: sending ping\n");
-
-		ret = mei_wd_send(dev);
-		if (ret)
-			goto end;
-		dev->wd_pending = false;
-	} else {
-		dev->wd_pending = true;
-	}
-
-end:
-	mutex_unlock(&dev->device_lock);
-	return ret;
-}
-
-/**
- * mei_wd_ops_set_timeout - wd set timeout command from the watchdog core.
- *
- * @wd_dev: watchdog device struct
- * @timeout: timeout value to set
- *
- * Return: 0 if success, negative errno code for failure
- */
-static int mei_wd_ops_set_timeout(struct watchdog_device *wd_dev,
-		unsigned int timeout)
-{
-	struct mei_device *dev;
-
-	dev = watchdog_get_drvdata(wd_dev);
-	if (!dev)
-		return -ENODEV;
-
-	/* Check Timeout value */
-	if (timeout < MEI_WD_MIN_TIMEOUT || timeout > MEI_WD_MAX_TIMEOUT)
-		return -EINVAL;
-
-	mutex_lock(&dev->device_lock);
-
-	dev->wd_timeout = timeout;
-	wd_dev->timeout = timeout;
-	mei_wd_set_start_timeout(dev, dev->wd_timeout);
-
-	mutex_unlock(&dev->device_lock);
-
-	return 0;
-}
-
-/*
- * Watchdog Device structs
- */
-static const struct watchdog_ops wd_ops = {
-		.owner = THIS_MODULE,
-		.start = mei_wd_ops_start,
-		.stop = mei_wd_ops_stop,
-		.ping = mei_wd_ops_ping,
-		.set_timeout = mei_wd_ops_set_timeout,
-};
-static const struct watchdog_info wd_info = {
-		.identity = INTEL_AMT_WATCHDOG_ID,
-		.options = WDIOF_KEEPALIVEPING |
-			   WDIOF_SETTIMEOUT |
-			   WDIOF_ALARMONLY,
-};
-
-static struct watchdog_device amt_wd_dev = {
-		.info = &wd_info,
-		.ops = &wd_ops,
-		.timeout = MEI_WD_DEFAULT_TIMEOUT,
-		.min_timeout = MEI_WD_MIN_TIMEOUT,
-		.max_timeout = MEI_WD_MAX_TIMEOUT,
-};
-
-
-int mei_watchdog_register(struct mei_device *dev)
-{
-
-	int ret;
-
-	amt_wd_dev.parent = dev->dev;
-	/* unlock to perserve correct locking order */
-	mutex_unlock(&dev->device_lock);
-	ret = watchdog_register_device(&amt_wd_dev);
-	mutex_lock(&dev->device_lock);
-	if (ret) {
-		dev_err(dev->dev, "wd: unable to register watchdog device = %d.\n",
-			ret);
-		return ret;
-	}
-
-	dev_dbg(dev->dev, "wd: successfully register watchdog interface.\n");
-	watchdog_set_drvdata(&amt_wd_dev, dev);
-	return 0;
-}
-
-void mei_watchdog_unregister(struct mei_device *dev)
-{
-	if (watchdog_get_drvdata(&amt_wd_dev) == NULL)
-		return;
-
-	watchdog_set_drvdata(&amt_wd_dev, NULL);
-	watchdog_unregister_device(&amt_wd_dev);
-}
-
diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
index 40677df..2e4f3ba 100644
--- a/drivers/misc/mic/Kconfig
+++ b/drivers/misc/mic/Kconfig
@@ -32,12 +32,29 @@ config SCIF_BUS
 	  OS and tools for MIC to use with this driver are available from
 	  <http://software.intel.com/en-us/mic-developer>.
 
+comment "VOP Bus Driver"
+
+config VOP_BUS
+	tristate "VOP Bus Driver"
+	depends on 64BIT && PCI && X86 && X86_DEV_DMA_OPS
+	help
+	  This option is selected by any driver which registers a
+	  device or driver on the VOP Bus, such as CONFIG_INTEL_MIC_HOST
+	  and CONFIG_INTEL_MIC_CARD.
+
+	  If you are building a host/card kernel with an Intel MIC device
+	  then say M (recommended) or Y, else say N. If unsure say N.
+
+	  More information about the Intel MIC family as well as the Linux
+	  OS and tools for MIC to use with this driver are available from
+	  <http://software.intel.com/en-us/mic-developer>.
+
 comment "Intel MIC Host Driver"
 
 config INTEL_MIC_HOST
 	tristate "Intel MIC Host Driver"
-	depends on 64BIT && PCI && X86 && INTEL_MIC_BUS && SCIF_BUS && MIC_COSM
-	select VHOST_RING
+	depends on 64BIT && PCI && X86
+	depends on INTEL_MIC_BUS && SCIF_BUS && MIC_COSM && VOP_BUS
 	help
 	  This enables Host Driver support for the Intel Many Integrated
 	  Core (MIC) family of PCIe form factor coprocessor devices that
@@ -56,7 +73,8 @@ comment "Intel MIC Card Driver"
 
 config INTEL_MIC_CARD
 	tristate "Intel MIC Card Driver"
-	depends on 64BIT && X86 && INTEL_MIC_BUS && SCIF_BUS && MIC_COSM
+	depends on 64BIT && X86
+	depends on INTEL_MIC_BUS && SCIF_BUS && MIC_COSM && VOP_BUS
 	select VIRTIO
 	help
 	  This enables card driver support for the Intel Many Integrated
@@ -107,3 +125,23 @@ config MIC_COSM
 	  More information about the Intel MIC family as well as the Linux
 	  OS and tools for MIC to use with this driver are available from
 	  <http://software.intel.com/en-us/mic-developer>.
+
+comment "VOP Driver"
+
+config VOP
+	tristate "VOP Driver"
+	depends on 64BIT && PCI && X86 && VOP_BUS
+	select VHOST_RING
+	help
+	  This enables VOP (Virtio over PCIe) Driver support for the Intel
+	  Many Integrated Core (MIC) family of PCIe form factor coprocessor
+	  devices. The VOP driver allows virtio drivers, e.g. net, console
+	  and block drivers, on the card connect to user space virtio
+	  devices on the host.
+
+	  If you are building a host kernel with an Intel MIC device then
+	  say M (recommended) or Y, else say N. If unsure say N.
+
+	  More information about the Intel MIC family as well as the Linux
+	  OS and tools for MIC to use with this driver are available from
+	  <http://software.intel.com/en-us/mic-developer>.
diff --git a/drivers/misc/mic/Makefile b/drivers/misc/mic/Makefile
index e288a11..f2b1323 100644
--- a/drivers/misc/mic/Makefile
+++ b/drivers/misc/mic/Makefile
@@ -8,3 +8,4 @@ obj-y += bus/
 obj-$(CONFIG_SCIF) += scif/
 obj-$(CONFIG_MIC_COSM) += cosm/
 obj-$(CONFIG_MIC_COSM) += cosm_client/
+obj-$(CONFIG_VOP) += vop/
diff --git a/drivers/misc/mic/bus/Makefile b/drivers/misc/mic/bus/Makefile
index 761842b..8758a7d 100644
--- a/drivers/misc/mic/bus/Makefile
+++ b/drivers/misc/mic/bus/Makefile
@@ -5,3 +5,4 @@
 obj-$(CONFIG_INTEL_MIC_BUS) += mic_bus.o
 obj-$(CONFIG_SCIF_BUS) += scif_bus.o
 obj-$(CONFIG_MIC_COSM) += cosm_bus.o
+obj-$(CONFIG_VOP_BUS) += vop_bus.o
diff --git a/drivers/misc/mic/bus/cosm_bus.h b/drivers/misc/mic/bus/cosm_bus.h
index f7c57f2..8b63418 100644
--- a/drivers/misc/mic/bus/cosm_bus.h
+++ b/drivers/misc/mic/bus/cosm_bus.h
@@ -30,6 +30,7 @@
  * @attr_group: Pointer to list of sysfs attribute groups.
  * @sdev: Device for sysfs entries.
  * @state: MIC state.
+ * @prev_state: MIC state previous to MIC_RESETTING
  * @shutdown_status: MIC status reported by card for shutdown/crashes.
  * @shutdown_status_int: Internal shutdown status maintained by the driver
  * @cosm_mutex: Mutex for synchronizing access to data structures.
@@ -55,6 +56,7 @@ struct cosm_device {
 	const struct attribute_group **attr_group;
 	struct device *sdev;
 	u8 state;
+	u8 prev_state;
 	u8 shutdown_status;
 	u8 shutdown_status_int;
 	struct mutex cosm_mutex;
diff --git a/drivers/misc/mic/bus/vop_bus.c b/drivers/misc/mic/bus/vop_bus.c
new file mode 100644
index 0000000..303da22
--- /dev/null
+++ b/drivers/misc/mic/bus/vop_bus.c
@@ -0,0 +1,203 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2016 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel Virtio Over PCIe (VOP) Bus driver.
+ */
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/idr.h>
+#include <linux/dma-mapping.h>
+
+#include "vop_bus.h"
+
+static ssize_t device_show(struct device *d,
+			   struct device_attribute *attr, char *buf)
+{
+	struct vop_device *dev = dev_to_vop(d);
+
+	return sprintf(buf, "0x%04x\n", dev->id.device);
+}
+static DEVICE_ATTR_RO(device);
+
+static ssize_t vendor_show(struct device *d,
+			   struct device_attribute *attr, char *buf)
+{
+	struct vop_device *dev = dev_to_vop(d);
+
+	return sprintf(buf, "0x%04x\n", dev->id.vendor);
+}
+static DEVICE_ATTR_RO(vendor);
+
+static ssize_t modalias_show(struct device *d,
+			     struct device_attribute *attr, char *buf)
+{
+	struct vop_device *dev = dev_to_vop(d);
+
+	return sprintf(buf, "vop:d%08Xv%08X\n",
+		       dev->id.device, dev->id.vendor);
+}
+static DEVICE_ATTR_RO(modalias);
+
+static struct attribute *vop_dev_attrs[] = {
+	&dev_attr_device.attr,
+	&dev_attr_vendor.attr,
+	&dev_attr_modalias.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(vop_dev);
+
+static inline int vop_id_match(const struct vop_device *dev,
+			       const struct vop_device_id *id)
+{
+	if (id->device != dev->id.device && id->device != VOP_DEV_ANY_ID)
+		return 0;
+
+	return id->vendor == VOP_DEV_ANY_ID || id->vendor == dev->id.vendor;
+}
+
+/*
+ * This looks through all the IDs a driver claims to support.  If any of them
+ * match, we return 1 and the kernel will call vop_dev_probe().
+ */
+static int vop_dev_match(struct device *dv, struct device_driver *dr)
+{
+	unsigned int i;
+	struct vop_device *dev = dev_to_vop(dv);
+	const struct vop_device_id *ids;
+
+	ids = drv_to_vop(dr)->id_table;
+	for (i = 0; ids[i].device; i++)
+		if (vop_id_match(dev, &ids[i]))
+			return 1;
+	return 0;
+}
+
+static int vop_uevent(struct device *dv, struct kobj_uevent_env *env)
+{
+	struct vop_device *dev = dev_to_vop(dv);
+
+	return add_uevent_var(env, "MODALIAS=vop:d%08Xv%08X",
+			      dev->id.device, dev->id.vendor);
+}
+
+static int vop_dev_probe(struct device *d)
+{
+	struct vop_device *dev = dev_to_vop(d);
+	struct vop_driver *drv = drv_to_vop(dev->dev.driver);
+
+	return drv->probe(dev);
+}
+
+static int vop_dev_remove(struct device *d)
+{
+	struct vop_device *dev = dev_to_vop(d);
+	struct vop_driver *drv = drv_to_vop(dev->dev.driver);
+
+	drv->remove(dev);
+	return 0;
+}
+
+static struct bus_type vop_bus = {
+	.name  = "vop_bus",
+	.match = vop_dev_match,
+	.dev_groups = vop_dev_groups,
+	.uevent = vop_uevent,
+	.probe = vop_dev_probe,
+	.remove = vop_dev_remove,
+};
+
+int vop_register_driver(struct vop_driver *driver)
+{
+	driver->driver.bus = &vop_bus;
+	return driver_register(&driver->driver);
+}
+EXPORT_SYMBOL_GPL(vop_register_driver);
+
+void vop_unregister_driver(struct vop_driver *driver)
+{
+	driver_unregister(&driver->driver);
+}
+EXPORT_SYMBOL_GPL(vop_unregister_driver);
+
+static void vop_release_dev(struct device *d)
+{
+	put_device(d);
+}
+
+struct vop_device *
+vop_register_device(struct device *pdev, int id,
+		    const struct dma_map_ops *dma_ops,
+		    struct vop_hw_ops *hw_ops, u8 dnode, struct mic_mw *aper,
+		    struct dma_chan *chan)
+{
+	int ret;
+	struct vop_device *vdev;
+
+	vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
+	if (!vdev)
+		return ERR_PTR(-ENOMEM);
+
+	vdev->dev.parent = pdev;
+	vdev->id.device = id;
+	vdev->id.vendor = VOP_DEV_ANY_ID;
+	vdev->dev.archdata.dma_ops = (struct dma_map_ops *)dma_ops;
+	vdev->dev.dma_mask = &vdev->dev.coherent_dma_mask;
+	dma_set_mask(&vdev->dev, DMA_BIT_MASK(64));
+	vdev->dev.release = vop_release_dev;
+	vdev->hw_ops = hw_ops;
+	vdev->dev.bus = &vop_bus;
+	vdev->dnode = dnode;
+	vdev->aper = aper;
+	vdev->dma_ch = chan;
+	vdev->index = dnode - 1;
+	dev_set_name(&vdev->dev, "vop-dev%u", vdev->index);
+	/*
+	 * device_register() causes the bus infrastructure to look for a
+	 * matching driver.
+	 */
+	ret = device_register(&vdev->dev);
+	if (ret)
+		goto free_vdev;
+	return vdev;
+free_vdev:
+	kfree(vdev);
+	return ERR_PTR(ret);
+}
+EXPORT_SYMBOL_GPL(vop_register_device);
+
+void vop_unregister_device(struct vop_device *dev)
+{
+	device_unregister(&dev->dev);
+}
+EXPORT_SYMBOL_GPL(vop_unregister_device);
+
+static int __init vop_init(void)
+{
+	return bus_register(&vop_bus);
+}
+
+static void __exit vop_exit(void)
+{
+	bus_unregister(&vop_bus);
+}
+
+core_initcall(vop_init);
+module_exit(vop_exit);
+
+MODULE_AUTHOR("Intel Corporation");
+MODULE_DESCRIPTION("Intel(R) VOP Bus driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/misc/mic/bus/vop_bus.h b/drivers/misc/mic/bus/vop_bus.h
new file mode 100644
index 0000000..fff7a86
--- /dev/null
+++ b/drivers/misc/mic/bus/vop_bus.h
@@ -0,0 +1,140 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2016 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel Virtio over PCIe Bus driver.
+ */
+#ifndef _VOP_BUS_H_
+#define _VOP_BUS_H_
+/*
+ * Everything a vop driver needs to work with any particular vop
+ * implementation.
+ */
+#include <linux/dmaengine.h>
+#include <linux/interrupt.h>
+
+#include "../common/mic_dev.h"
+
+struct vop_device_id {
+	u32 device;
+	u32 vendor;
+};
+
+#define VOP_DEV_TRNSP 1
+#define VOP_DEV_ANY_ID 0xffffffff
+/*
+ * Size of the internal buffer used during DMA's as an intermediate buffer
+ * for copy to/from user. Must be an integral number of pages.
+ */
+#define VOP_INT_DMA_BUF_SIZE PAGE_ALIGN(64 * 1024ULL)
+
+/**
+ * vop_device - representation of a device using vop
+ * @hw_ops: the hardware ops supported by this device.
+ * @id: the device type identification (used to match it with a driver).
+ * @dev: underlying device.
+ * @dnode - The destination node which this device will communicate with.
+ * @aper: Aperture memory window
+ * @dma_ch - DMA channel
+ * @index: unique position on the vop bus
+ */
+struct vop_device {
+	struct vop_hw_ops *hw_ops;
+	struct vop_device_id id;
+	struct device dev;
+	u8 dnode;
+	struct mic_mw *aper;
+	struct dma_chan *dma_ch;
+	int index;
+};
+
+/**
+ * vop_driver - operations for a vop I/O driver
+ * @driver: underlying device driver (populate name and owner).
+ * @id_table: the ids serviced by this driver.
+ * @probe: the function to call when a device is found.  Returns 0 or -errno.
+ * @remove: the function to call when a device is removed.
+ */
+struct vop_driver {
+	struct device_driver driver;
+	const struct vop_device_id *id_table;
+	int (*probe)(struct vop_device *dev);
+	void (*remove)(struct vop_device *dev);
+};
+
+/**
+ * vop_hw_ops - Hardware operations for accessing a VOP device on the VOP bus.
+ *
+ * @next_db: Obtain the next available doorbell.
+ * @request_irq: Request an interrupt on a particular doorbell.
+ * @free_irq: Free an interrupt requested previously.
+ * @ack_interrupt: acknowledge an interrupt in the ISR.
+ * @get_remote_dp: Get access to the virtio device page used by the remote
+ *                 node to add/remove/configure virtio devices.
+ * @get_dp: Get access to the virtio device page used by the self
+ *          node to add/remove/configure virtio devices.
+ * @send_intr: Send an interrupt to the peer node on a specified doorbell.
+ * @ioremap: Map a buffer with the specified DMA address and length.
+ * @iounmap: Unmap a buffer previously mapped.
+ * @dma_filter: The DMA filter function to use for obtaining access to
+ *		a DMA channel on the peer node.
+ */
+struct vop_hw_ops {
+	int (*next_db)(struct vop_device *vpdev);
+	struct mic_irq *(*request_irq)(struct vop_device *vpdev,
+				       irqreturn_t (*func)(int irq, void *data),
+				       const char *name, void *data,
+				       int intr_src);
+	void (*free_irq)(struct vop_device *vpdev,
+			 struct mic_irq *cookie, void *data);
+	void (*ack_interrupt)(struct vop_device *vpdev, int num);
+	void __iomem * (*get_remote_dp)(struct vop_device *vpdev);
+	void * (*get_dp)(struct vop_device *vpdev);
+	void (*send_intr)(struct vop_device *vpdev, int db);
+	void __iomem * (*ioremap)(struct vop_device *vpdev,
+				  dma_addr_t pa, size_t len);
+	void (*iounmap)(struct vop_device *vpdev, void __iomem *va);
+};
+
+struct vop_device *
+vop_register_device(struct device *pdev, int id,
+		    const struct dma_map_ops *dma_ops,
+		    struct vop_hw_ops *hw_ops, u8 dnode, struct mic_mw *aper,
+		    struct dma_chan *chan);
+void vop_unregister_device(struct vop_device *dev);
+int vop_register_driver(struct vop_driver *drv);
+void vop_unregister_driver(struct vop_driver *drv);
+
+/*
+ * module_vop_driver() - Helper macro for drivers that don't do
+ * anything special in module init/exit.  This eliminates a lot of
+ * boilerplate.  Each module may only use this macro once, and
+ * calling it replaces module_init() and module_exit()
+ */
+#define module_vop_driver(__vop_driver) \
+	module_driver(__vop_driver, vop_register_driver, \
+			vop_unregister_driver)
+
+static inline struct vop_device *dev_to_vop(struct device *dev)
+{
+	return container_of(dev, struct vop_device, dev);
+}
+
+static inline struct vop_driver *drv_to_vop(struct device_driver *drv)
+{
+	return container_of(drv, struct vop_driver, driver);
+}
+#endif /* _VOP_BUS_H */
diff --git a/drivers/misc/mic/card/Makefile b/drivers/misc/mic/card/Makefile
index 69d58be..6e9675e 100644
--- a/drivers/misc/mic/card/Makefile
+++ b/drivers/misc/mic/card/Makefile
@@ -8,4 +8,3 @@ obj-$(CONFIG_INTEL_MIC_CARD) += mic_card.o
 mic_card-y += mic_x100.o
 mic_card-y += mic_device.o
 mic_card-y += mic_debugfs.o
-mic_card-y += mic_virtio.o
diff --git a/drivers/misc/mic/card/mic_device.c b/drivers/misc/mic/card/mic_device.c
index d0edaf7..e749af4 100644
--- a/drivers/misc/mic/card/mic_device.c
+++ b/drivers/misc/mic/card/mic_device.c
@@ -34,7 +34,6 @@
 #include <linux/mic_common.h>
 #include "../common/mic_dev.h"
 #include "mic_device.h"
-#include "mic_virtio.h"
 
 static struct mic_driver *g_drv;
 
@@ -250,12 +249,82 @@ static struct scif_hw_ops scif_hw_ops = {
 	.iounmap = ___mic_iounmap,
 };
 
+static inline struct mic_driver *vpdev_to_mdrv(struct vop_device *vpdev)
+{
+	return dev_get_drvdata(vpdev->dev.parent);
+}
+
+static struct mic_irq *
+__mic_request_irq(struct vop_device *vpdev,
+		  irqreturn_t (*func)(int irq, void *data),
+		   const char *name, void *data, int intr_src)
+{
+	return mic_request_card_irq(func, NULL, name, data, intr_src);
+}
+
+static void __mic_free_irq(struct vop_device *vpdev,
+			   struct mic_irq *cookie, void *data)
+{
+	return mic_free_card_irq(cookie, data);
+}
+
+static void __mic_ack_interrupt(struct vop_device *vpdev, int num)
+{
+	struct mic_driver *mdrv = vpdev_to_mdrv(vpdev);
+
+	mic_ack_interrupt(&mdrv->mdev);
+}
+
+static int __mic_next_db(struct vop_device *vpdev)
+{
+	return mic_next_card_db();
+}
+
+static void __iomem *__mic_get_remote_dp(struct vop_device *vpdev)
+{
+	struct mic_driver *mdrv = vpdev_to_mdrv(vpdev);
+
+	return mdrv->dp;
+}
+
+static void __mic_send_intr(struct vop_device *vpdev, int db)
+{
+	struct mic_driver *mdrv = vpdev_to_mdrv(vpdev);
+
+	mic_send_intr(&mdrv->mdev, db);
+}
+
+static void __iomem *__mic_ioremap(struct vop_device *vpdev,
+				   dma_addr_t pa, size_t len)
+{
+	struct mic_driver *mdrv = vpdev_to_mdrv(vpdev);
+
+	return mic_card_map(&mdrv->mdev, pa, len);
+}
+
+static void __mic_iounmap(struct vop_device *vpdev, void __iomem *va)
+{
+	struct mic_driver *mdrv = vpdev_to_mdrv(vpdev);
+
+	mic_card_unmap(&mdrv->mdev, va);
+}
+
+static struct vop_hw_ops vop_hw_ops = {
+	.request_irq = __mic_request_irq,
+	.free_irq = __mic_free_irq,
+	.ack_interrupt = __mic_ack_interrupt,
+	.next_db = __mic_next_db,
+	.get_remote_dp = __mic_get_remote_dp,
+	.send_intr = __mic_send_intr,
+	.ioremap = __mic_ioremap,
+	.iounmap = __mic_iounmap,
+};
+
 static int mic_request_dma_chans(struct mic_driver *mdrv)
 {
 	dma_cap_mask_t mask;
 	struct dma_chan *chan;
 
-	request_module("mic_x100_dma");
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_MEMCPY, mask);
 
@@ -309,9 +378,13 @@ int __init mic_driver_init(struct mic_driver *mdrv)
 		rc = -ENODEV;
 		goto irq_uninit;
 	}
-	rc = mic_devices_init(mdrv);
-	if (rc)
+	mdrv->vpdev = vop_register_device(mdrv->dev, VOP_DEV_TRNSP,
+					  NULL, &vop_hw_ops, 0,
+					  NULL, mdrv->dma_ch[0]);
+	if (IS_ERR(mdrv->vpdev)) {
+		rc = PTR_ERR(mdrv->vpdev);
 		goto dma_free;
+	}
 	bootparam = mdrv->dp;
 	node_id = ioread8(&bootparam->node_id);
 	mdrv->scdev = scif_register_device(mdrv->dev, MIC_SCIF_DEV,
@@ -321,13 +394,13 @@ int __init mic_driver_init(struct mic_driver *mdrv)
 					   mdrv->num_dma_ch, true);
 	if (IS_ERR(mdrv->scdev)) {
 		rc = PTR_ERR(mdrv->scdev);
-		goto device_uninit;
+		goto vop_remove;
 	}
 	mic_create_card_debug_dir(mdrv);
 done:
 	return rc;
-device_uninit:
-	mic_devices_uninit(mdrv);
+vop_remove:
+	vop_unregister_device(mdrv->vpdev);
 dma_free:
 	mic_free_dma_chans(mdrv);
 irq_uninit:
@@ -348,7 +421,7 @@ void mic_driver_uninit(struct mic_driver *mdrv)
 {
 	mic_delete_card_debug_dir(mdrv);
 	scif_unregister_device(mdrv->scdev);
-	mic_devices_uninit(mdrv);
+	vop_unregister_device(mdrv->vpdev);
 	mic_free_dma_chans(mdrv);
 	mic_uninit_irq();
 	mic_dp_uninit();
diff --git a/drivers/misc/mic/card/mic_device.h b/drivers/misc/mic/card/mic_device.h
index 1dbf83c..333dbed 100644
--- a/drivers/misc/mic/card/mic_device.h
+++ b/drivers/misc/mic/card/mic_device.h
@@ -32,6 +32,7 @@
 #include <linux/interrupt.h>
 #include <linux/mic_bus.h>
 #include "../bus/scif_bus.h"
+#include "../bus/vop_bus.h"
 
 /**
  * struct mic_intr_info - Contains h/w specific interrupt sources info
@@ -76,6 +77,7 @@ struct mic_device {
  * @dma_ch - Array of DMA channels
  * @num_dma_ch - Number of DMA channels available
  * @scdev: SCIF device on the SCIF virtual bus.
+ * @vpdev: Virtio over PCIe device on the VOP virtual bus.
  */
 struct mic_driver {
 	char name[20];
@@ -90,6 +92,7 @@ struct mic_driver {
 	struct dma_chan *dma_ch[MIC_MAX_DMA_CHAN];
 	int num_dma_ch;
 	struct scif_hw_dev *scdev;
+	struct vop_device *vpdev;
 };
 
 /**
diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c
deleted file mode 100644
index f6ed57d..0000000
--- a/drivers/misc/mic/card/mic_virtio.c
+++ /dev/null
@@ -1,634 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Disclaimer: The codes contained in these modules may be specific to
- * the Intel Software Development Platform codenamed: Knights Ferry, and
- * the Intel product codenamed: Knights Corner, and are not backward
- * compatible with other Intel products. Additionally, Intel will NOT
- * support the codes or instruction set in future products.
- *
- * Adapted from:
- *
- * virtio for kvm on s390
- *
- * Copyright IBM Corp. 2008
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- *    Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
- *
- * Intel MIC Card driver.
- *
- */
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/virtio_config.h>
-
-#include "../common/mic_dev.h"
-#include "mic_virtio.h"
-
-#define VIRTIO_SUBCODE_64 0x0D00
-
-#define MIC_MAX_VRINGS                4
-struct mic_vdev {
-	struct virtio_device vdev;
-	struct mic_device_desc __iomem *desc;
-	struct mic_device_ctrl __iomem *dc;
-	struct mic_device *mdev;
-	void __iomem *vr[MIC_MAX_VRINGS];
-	int used_size[MIC_MAX_VRINGS];
-	struct completion reset_done;
-	struct mic_irq *virtio_cookie;
-	int c2h_vdev_db;
-};
-
-static struct mic_irq *virtio_config_cookie;
-#define to_micvdev(vd) container_of(vd, struct mic_vdev, vdev)
-
-/* Helper API to obtain the parent of the virtio device */
-static inline struct device *mic_dev(struct mic_vdev *mvdev)
-{
-	return mvdev->vdev.dev.parent;
-}
-
-/* This gets the device's feature bits. */
-static u64 mic_get_features(struct virtio_device *vdev)
-{
-	unsigned int i, bits;
-	u32 features = 0;
-	struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc;
-	u8 __iomem *in_features = mic_vq_features(desc);
-	int feature_len = ioread8(&desc->feature_len);
-
-	bits = min_t(unsigned, feature_len, sizeof(features)) * 8;
-	for (i = 0; i < bits; i++)
-		if (ioread8(&in_features[i / 8]) & (BIT(i % 8)))
-			features |= BIT(i);
-
-	return features;
-}
-
-static int mic_finalize_features(struct virtio_device *vdev)
-{
-	unsigned int i, bits;
-	struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc;
-	u8 feature_len = ioread8(&desc->feature_len);
-	/* Second half of bitmap is features we accept. */
-	u8 __iomem *out_features =
-		mic_vq_features(desc) + feature_len;
-
-	/* Give virtio_ring a chance to accept features. */
-	vring_transport_features(vdev);
-
-	/* Make sure we don't have any features > 32 bits! */
-	BUG_ON((u32)vdev->features != vdev->features);
-
-	memset_io(out_features, 0, feature_len);
-	bits = min_t(unsigned, feature_len,
-		sizeof(vdev->features)) * 8;
-	for (i = 0; i < bits; i++) {
-		if (__virtio_test_bit(vdev, i))
-			iowrite8(ioread8(&out_features[i / 8]) | (1 << (i % 8)),
-				 &out_features[i / 8]);
-	}
-
-	return 0;
-}
-
-/*
- * Reading and writing elements in config space
- */
-static void mic_get(struct virtio_device *vdev, unsigned int offset,
-		   void *buf, unsigned len)
-{
-	struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc;
-
-	if (offset + len > ioread8(&desc->config_len))
-		return;
-	memcpy_fromio(buf, mic_vq_configspace(desc) + offset, len);
-}
-
-static void mic_set(struct virtio_device *vdev, unsigned int offset,
-		   const void *buf, unsigned len)
-{
-	struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc;
-
-	if (offset + len > ioread8(&desc->config_len))
-		return;
-	memcpy_toio(mic_vq_configspace(desc) + offset, buf, len);
-}
-
-/*
- * The operations to get and set the status word just access the status
- * field of the device descriptor. set_status also interrupts the host
- * to tell about status changes.
- */
-static u8 mic_get_status(struct virtio_device *vdev)
-{
-	return ioread8(&to_micvdev(vdev)->desc->status);
-}
-
-static void mic_set_status(struct virtio_device *vdev, u8 status)
-{
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-	if (!status)
-		return;
-	iowrite8(status, &mvdev->desc->status);
-	mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db);
-}
-
-/* Inform host on a virtio device reset and wait for ack from host */
-static void mic_reset_inform_host(struct virtio_device *vdev)
-{
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-	struct mic_device_ctrl __iomem *dc = mvdev->dc;
-	int retry;
-
-	iowrite8(0, &dc->host_ack);
-	iowrite8(1, &dc->vdev_reset);
-	mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db);
-
-	/* Wait till host completes all card accesses and acks the reset */
-	for (retry = 100; retry--;) {
-		if (ioread8(&dc->host_ack))
-			break;
-		msleep(100);
-	};
-
-	dev_dbg(mic_dev(mvdev), "%s: retry: %d\n", __func__, retry);
-
-	/* Reset status to 0 in case we timed out */
-	iowrite8(0, &mvdev->desc->status);
-}
-
-static void mic_reset(struct virtio_device *vdev)
-{
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-
-	dev_dbg(mic_dev(mvdev), "%s: virtio id %d\n",
-		__func__, vdev->id.device);
-
-	mic_reset_inform_host(vdev);
-	complete_all(&mvdev->reset_done);
-}
-
-/*
- * The virtio_ring code calls this API when it wants to notify the Host.
- */
-static bool mic_notify(struct virtqueue *vq)
-{
-	struct mic_vdev *mvdev = vq->priv;
-
-	mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db);
-	return true;
-}
-
-static void mic_del_vq(struct virtqueue *vq, int n)
-{
-	struct mic_vdev *mvdev = to_micvdev(vq->vdev);
-	struct vring *vr = (struct vring *)(vq + 1);
-
-	free_pages((unsigned long) vr->used, get_order(mvdev->used_size[n]));
-	vring_del_virtqueue(vq);
-	mic_card_unmap(mvdev->mdev, mvdev->vr[n]);
-	mvdev->vr[n] = NULL;
-}
-
-static void mic_del_vqs(struct virtio_device *vdev)
-{
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-	struct virtqueue *vq, *n;
-	int idx = 0;
-
-	dev_dbg(mic_dev(mvdev), "%s\n", __func__);
-
-	list_for_each_entry_safe(vq, n, &vdev->vqs, list)
-		mic_del_vq(vq, idx++);
-}
-
-/*
- * This routine will assign vring's allocated in host/io memory. Code in
- * virtio_ring.c however continues to access this io memory as if it were local
- * memory without io accessors.
- */
-static struct virtqueue *mic_find_vq(struct virtio_device *vdev,
-				     unsigned index,
-				     void (*callback)(struct virtqueue *vq),
-				     const char *name)
-{
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-	struct mic_vqconfig __iomem *vqconfig;
-	struct mic_vqconfig config;
-	struct virtqueue *vq;
-	void __iomem *va;
-	struct _mic_vring_info __iomem *info;
-	void *used;
-	int vr_size, _vr_size, err, magic;
-	struct vring *vr;
-	u8 type = ioread8(&mvdev->desc->type);
-
-	if (index >= ioread8(&mvdev->desc->num_vq))
-		return ERR_PTR(-ENOENT);
-
-	if (!name)
-		return ERR_PTR(-ENOENT);
-
-	/* First assign the vring's allocated in host memory */
-	vqconfig = mic_vq_config(mvdev->desc) + index;
-	memcpy_fromio(&config, vqconfig, sizeof(config));
-	_vr_size = vring_size(le16_to_cpu(config.num), MIC_VIRTIO_RING_ALIGN);
-	vr_size = PAGE_ALIGN(_vr_size + sizeof(struct _mic_vring_info));
-	va = mic_card_map(mvdev->mdev, le64_to_cpu(config.address), vr_size);
-	if (!va)
-		return ERR_PTR(-ENOMEM);
-	mvdev->vr[index] = va;
-	memset_io(va, 0x0, _vr_size);
-	vq = vring_new_virtqueue(index, le16_to_cpu(config.num),
-				 MIC_VIRTIO_RING_ALIGN, vdev, false,
-				 (void __force *)va, mic_notify, callback,
-				 name);
-	if (!vq) {
-		err = -ENOMEM;
-		goto unmap;
-	}
-	info = va + _vr_size;
-	magic = ioread32(&info->magic);
-
-	if (WARN(magic != MIC_MAGIC + type + index, "magic mismatch")) {
-		err = -EIO;
-		goto unmap;
-	}
-
-	/* Allocate and reassign used ring now */
-	mvdev->used_size[index] = PAGE_ALIGN(sizeof(__u16) * 3 +
-					     sizeof(struct vring_used_elem) *
-					     le16_to_cpu(config.num));
-	used = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
-					get_order(mvdev->used_size[index]));
-	if (!used) {
-		err = -ENOMEM;
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, err);
-		goto del_vq;
-	}
-	iowrite64(virt_to_phys(used), &vqconfig->used_address);
-
-	/*
-	 * To reassign the used ring here we are directly accessing
-	 * struct vring_virtqueue which is a private data structure
-	 * in virtio_ring.c. At the minimum, a BUILD_BUG_ON() in
-	 * vring_new_virtqueue() would ensure that
-	 *  (&vq->vring == (struct vring *) (&vq->vq + 1));
-	 */
-	vr = (struct vring *)(vq + 1);
-	vr->used = used;
-
-	vq->priv = mvdev;
-	return vq;
-del_vq:
-	vring_del_virtqueue(vq);
-unmap:
-	mic_card_unmap(mvdev->mdev, mvdev->vr[index]);
-	return ERR_PTR(err);
-}
-
-static int mic_find_vqs(struct virtio_device *vdev, unsigned nvqs,
-			struct virtqueue *vqs[],
-			vq_callback_t *callbacks[],
-			const char * const names[])
-{
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-	struct mic_device_ctrl __iomem *dc = mvdev->dc;
-	int i, err, retry;
-
-	/* We must have this many virtqueues. */
-	if (nvqs > ioread8(&mvdev->desc->num_vq))
-		return -ENOENT;
-
-	for (i = 0; i < nvqs; ++i) {
-		dev_dbg(mic_dev(mvdev), "%s: %d: %s\n",
-			__func__, i, names[i]);
-		vqs[i] = mic_find_vq(vdev, i, callbacks[i], names[i]);
-		if (IS_ERR(vqs[i])) {
-			err = PTR_ERR(vqs[i]);
-			goto error;
-		}
-	}
-
-	iowrite8(1, &dc->used_address_updated);
-	/*
-	 * Send an interrupt to the host to inform it that used
-	 * rings have been re-assigned.
-	 */
-	mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db);
-	for (retry = 100; retry--;) {
-		if (!ioread8(&dc->used_address_updated))
-			break;
-		msleep(100);
-	};
-
-	dev_dbg(mic_dev(mvdev), "%s: retry: %d\n", __func__, retry);
-	if (!retry) {
-		err = -ENODEV;
-		goto error;
-	}
-
-	return 0;
-error:
-	mic_del_vqs(vdev);
-	return err;
-}
-
-/*
- * The config ops structure as defined by virtio config
- */
-static struct virtio_config_ops mic_vq_config_ops = {
-	.get_features = mic_get_features,
-	.finalize_features = mic_finalize_features,
-	.get = mic_get,
-	.set = mic_set,
-	.get_status = mic_get_status,
-	.set_status = mic_set_status,
-	.reset = mic_reset,
-	.find_vqs = mic_find_vqs,
-	.del_vqs = mic_del_vqs,
-};
-
-static irqreturn_t
-mic_virtio_intr_handler(int irq, void *data)
-{
-	struct mic_vdev *mvdev = data;
-	struct virtqueue *vq;
-
-	mic_ack_interrupt(mvdev->mdev);
-	list_for_each_entry(vq, &mvdev->vdev.vqs, list)
-		vring_interrupt(0, vq);
-
-	return IRQ_HANDLED;
-}
-
-static void mic_virtio_release_dev(struct device *_d)
-{
-	/*
-	 * No need for a release method similar to virtio PCI.
-	 * Provide an empty one to avoid getting a warning from core.
-	 */
-}
-
-/*
- * adds a new device and register it with virtio
- * appropriate drivers are loaded by the device model
- */
-static int mic_add_device(struct mic_device_desc __iomem *d,
-	unsigned int offset, struct mic_driver *mdrv)
-{
-	struct mic_vdev *mvdev;
-	int ret;
-	int virtio_db;
-	u8 type = ioread8(&d->type);
-
-	mvdev = kzalloc(sizeof(*mvdev), GFP_KERNEL);
-	if (!mvdev) {
-		dev_err(mdrv->dev, "Cannot allocate mic dev %u type %u\n",
-			offset, type);
-		return -ENOMEM;
-	}
-
-	mvdev->mdev = &mdrv->mdev;
-	mvdev->vdev.dev.parent = mdrv->dev;
-	mvdev->vdev.dev.release = mic_virtio_release_dev;
-	mvdev->vdev.id.device = type;
-	mvdev->vdev.config = &mic_vq_config_ops;
-	mvdev->desc = d;
-	mvdev->dc = (void __iomem *)d + mic_aligned_desc_size(d);
-	init_completion(&mvdev->reset_done);
-
-	virtio_db = mic_next_card_db();
-	mvdev->virtio_cookie = mic_request_card_irq(mic_virtio_intr_handler,
-			NULL, "virtio intr", mvdev, virtio_db);
-	if (IS_ERR(mvdev->virtio_cookie)) {
-		ret = PTR_ERR(mvdev->virtio_cookie);
-		goto kfree;
-	}
-	iowrite8((u8)virtio_db, &mvdev->dc->h2c_vdev_db);
-	mvdev->c2h_vdev_db = ioread8(&mvdev->dc->c2h_vdev_db);
-
-	ret = register_virtio_device(&mvdev->vdev);
-	if (ret) {
-		dev_err(mic_dev(mvdev),
-			"Failed to register mic device %u type %u\n",
-			offset, type);
-		goto free_irq;
-	}
-	iowrite64((u64)mvdev, &mvdev->dc->vdev);
-	dev_dbg(mic_dev(mvdev), "%s: registered mic device %u type %u mvdev %p\n",
-		__func__, offset, type, mvdev);
-
-	return 0;
-
-free_irq:
-	mic_free_card_irq(mvdev->virtio_cookie, mvdev);
-kfree:
-	kfree(mvdev);
-	return ret;
-}
-
-/*
- * match for a mic device with a specific desc pointer
- */
-static int mic_match_desc(struct device *dev, void *data)
-{
-	struct virtio_device *vdev = dev_to_virtio(dev);
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-
-	return mvdev->desc == (void __iomem *)data;
-}
-
-static void mic_handle_config_change(struct mic_device_desc __iomem *d,
-	unsigned int offset, struct mic_driver *mdrv)
-{
-	struct mic_device_ctrl __iomem *dc
-		= (void __iomem *)d + mic_aligned_desc_size(d);
-	struct mic_vdev *mvdev = (struct mic_vdev *)ioread64(&dc->vdev);
-
-	if (ioread8(&dc->config_change) != MIC_VIRTIO_PARAM_CONFIG_CHANGED)
-		return;
-
-	dev_dbg(mdrv->dev, "%s %d\n", __func__, __LINE__);
-	virtio_config_changed(&mvdev->vdev);
-	iowrite8(1, &dc->guest_ack);
-}
-
-/*
- * removes a virtio device if a hot remove event has been
- * requested by the host.
- */
-static int mic_remove_device(struct mic_device_desc __iomem *d,
-	unsigned int offset, struct mic_driver *mdrv)
-{
-	struct mic_device_ctrl __iomem *dc
-		= (void __iomem *)d + mic_aligned_desc_size(d);
-	struct mic_vdev *mvdev = (struct mic_vdev *)ioread64(&dc->vdev);
-	u8 status;
-	int ret = -1;
-
-	if (ioread8(&dc->config_change) == MIC_VIRTIO_PARAM_DEV_REMOVE) {
-		dev_dbg(mdrv->dev,
-			"%s %d config_change %d type %d mvdev %p\n",
-			__func__, __LINE__,
-			ioread8(&dc->config_change), ioread8(&d->type), mvdev);
-
-		status = ioread8(&d->status);
-		reinit_completion(&mvdev->reset_done);
-		unregister_virtio_device(&mvdev->vdev);
-		mic_free_card_irq(mvdev->virtio_cookie, mvdev);
-		if (status & VIRTIO_CONFIG_S_DRIVER_OK)
-			wait_for_completion(&mvdev->reset_done);
-		kfree(mvdev);
-		iowrite8(1, &dc->guest_ack);
-		dev_dbg(mdrv->dev, "%s %d guest_ack %d\n",
-			__func__, __LINE__, ioread8(&dc->guest_ack));
-		ret = 0;
-	}
-
-	return ret;
-}
-
-#define REMOVE_DEVICES true
-
-static void mic_scan_devices(struct mic_driver *mdrv, bool remove)
-{
-	s8 type;
-	unsigned int i;
-	struct mic_device_desc __iomem *d;
-	struct mic_device_ctrl __iomem *dc;
-	struct device *dev;
-	int ret;
-
-	for (i = sizeof(struct mic_bootparam); i < MIC_DP_SIZE;
-		i += mic_total_desc_size(d)) {
-		d = mdrv->dp + i;
-		dc = (void __iomem *)d + mic_aligned_desc_size(d);
-		/*
-		 * This read barrier is paired with the corresponding write
-		 * barrier on the host which is inserted before adding or
-		 * removing a virtio device descriptor, by updating the type.
-		 */
-		rmb();
-		type = ioread8(&d->type);
-
-		/* end of list */
-		if (type == 0)
-			break;
-
-		if (type == -1)
-			continue;
-
-		/* device already exists */
-		dev = device_find_child(mdrv->dev, (void __force *)d,
-					mic_match_desc);
-		if (dev) {
-			if (remove)
-				iowrite8(MIC_VIRTIO_PARAM_DEV_REMOVE,
-					 &dc->config_change);
-			put_device(dev);
-			mic_handle_config_change(d, i, mdrv);
-			ret = mic_remove_device(d, i, mdrv);
-			if (!ret && !remove)
-				iowrite8(-1, &d->type);
-			if (remove) {
-				iowrite8(0, &dc->config_change);
-				iowrite8(0, &dc->guest_ack);
-			}
-			continue;
-		}
-
-		/* new device */
-		dev_dbg(mdrv->dev, "%s %d Adding new virtio device %p\n",
-			__func__, __LINE__, d);
-		if (!remove)
-			mic_add_device(d, i, mdrv);
-	}
-}
-
-/*
- * mic_hotplug_device tries to find changes in the device page.
- */
-static void mic_hotplug_devices(struct work_struct *work)
-{
-	struct mic_driver *mdrv = container_of(work,
-		struct mic_driver, hotplug_work);
-
-	mic_scan_devices(mdrv, !REMOVE_DEVICES);
-}
-
-/*
- * Interrupt handler for hot plug/config changes etc.
- */
-static irqreturn_t
-mic_extint_handler(int irq, void *data)
-{
-	struct mic_driver *mdrv = (struct mic_driver *)data;
-
-	dev_dbg(mdrv->dev, "%s %d hotplug work\n",
-		__func__, __LINE__);
-	mic_ack_interrupt(&mdrv->mdev);
-	schedule_work(&mdrv->hotplug_work);
-	return IRQ_HANDLED;
-}
-
-/*
- * Init function for virtio
- */
-int mic_devices_init(struct mic_driver *mdrv)
-{
-	int rc;
-	struct mic_bootparam __iomem *bootparam;
-	int config_db;
-
-	INIT_WORK(&mdrv->hotplug_work, mic_hotplug_devices);
-	mic_scan_devices(mdrv, !REMOVE_DEVICES);
-
-	config_db = mic_next_card_db();
-	virtio_config_cookie = mic_request_card_irq(mic_extint_handler, NULL,
-						    "virtio_config_intr", mdrv,
-						    config_db);
-	if (IS_ERR(virtio_config_cookie)) {
-		rc = PTR_ERR(virtio_config_cookie);
-		goto exit;
-	}
-
-	bootparam = mdrv->dp;
-	iowrite8(config_db, &bootparam->h2c_config_db);
-	return 0;
-exit:
-	return rc;
-}
-
-/*
- * Uninit function for virtio
- */
-void mic_devices_uninit(struct mic_driver *mdrv)
-{
-	struct mic_bootparam __iomem *bootparam = mdrv->dp;
-	iowrite8(-1, &bootparam->h2c_config_db);
-	mic_free_card_irq(virtio_config_cookie, mdrv);
-	flush_work(&mdrv->hotplug_work);
-	mic_scan_devices(mdrv, REMOVE_DEVICES);
-}
diff --git a/drivers/misc/mic/card/mic_virtio.h b/drivers/misc/mic/card/mic_virtio.h
deleted file mode 100644
index d0407ba..0000000
--- a/drivers/misc/mic/card/mic_virtio.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Disclaimer: The codes contained in these modules may be specific to
- * the Intel Software Development Platform codenamed: Knights Ferry, and
- * the Intel product codenamed: Knights Corner, and are not backward
- * compatible with other Intel products. Additionally, Intel will NOT
- * support the codes or instruction set in future products.
- *
- * Intel MIC Card driver.
- *
- */
-#ifndef __MIC_CARD_VIRTIO_H
-#define __MIC_CARD_VIRTIO_H
-
-#include <linux/mic_common.h>
-#include "mic_device.h"
-
-/*
- * 64 bit I/O access
- */
-#ifndef ioread64
-#define ioread64 readq
-#endif
-#ifndef iowrite64
-#define iowrite64 writeq
-#endif
-
-static inline unsigned mic_desc_size(struct mic_device_desc __iomem *desc)
-{
-	return sizeof(*desc)
-		+ ioread8(&desc->num_vq) * sizeof(struct mic_vqconfig)
-		+ ioread8(&desc->feature_len) * 2
-		+ ioread8(&desc->config_len);
-}
-
-static inline struct mic_vqconfig __iomem *
-mic_vq_config(struct mic_device_desc __iomem *desc)
-{
-	return (struct mic_vqconfig __iomem *)(desc + 1);
-}
-
-static inline __u8 __iomem *
-mic_vq_features(struct mic_device_desc __iomem *desc)
-{
-	return (__u8 __iomem *)(mic_vq_config(desc) + ioread8(&desc->num_vq));
-}
-
-static inline __u8 __iomem *
-mic_vq_configspace(struct mic_device_desc __iomem *desc)
-{
-	return mic_vq_features(desc) + ioread8(&desc->feature_len) * 2;
-}
-static inline unsigned mic_total_desc_size(struct mic_device_desc __iomem *desc)
-{
-	return mic_aligned_desc_size(desc) + sizeof(struct mic_device_ctrl);
-}
-
-int mic_devices_init(struct mic_driver *mdrv);
-void mic_devices_uninit(struct mic_driver *mdrv);
-
-#endif
diff --git a/drivers/misc/mic/card/mic_x100.c b/drivers/misc/mic/card/mic_x100.c
index b2958ce..b9f0710 100644
--- a/drivers/misc/mic/card/mic_x100.c
+++ b/drivers/misc/mic/card/mic_x100.c
@@ -326,6 +326,7 @@ static int __init mic_init(void)
 		goto done;
 	}
 
+	request_module("mic_x100_dma");
 	mic_init_card_debugfs();
 	ret = platform_device_register(&mic_platform_dev);
 	if (ret) {
diff --git a/drivers/misc/mic/cosm/cosm_main.c b/drivers/misc/mic/cosm/cosm_main.c
index 4b4b356..7005cb1 100644
--- a/drivers/misc/mic/cosm/cosm_main.c
+++ b/drivers/misc/mic/cosm/cosm_main.c
@@ -153,8 +153,10 @@ void cosm_stop(struct cosm_device *cdev, bool force)
 		 * stop(..) calls device_unregister and will crash the system if
 		 * called multiple times.
 		 */
-		bool call_hw_ops = cdev->state != MIC_RESET_FAILED &&
-					cdev->state != MIC_READY;
+		u8 state = cdev->state == MIC_RESETTING ?
+					cdev->prev_state : cdev->state;
+		bool call_hw_ops = state != MIC_RESET_FAILED &&
+					state != MIC_READY;
 
 		if (cdev->state != MIC_RESETTING)
 			cosm_set_state(cdev, MIC_RESETTING);
@@ -195,8 +197,11 @@ int cosm_reset(struct cosm_device *cdev)
 
 	mutex_lock(&cdev->cosm_mutex);
 	if (cdev->state != MIC_READY) {
-		cosm_set_state(cdev, MIC_RESETTING);
-		schedule_work(&cdev->reset_trigger_work);
+		if (cdev->state != MIC_RESETTING) {
+			cdev->prev_state = cdev->state;
+			cosm_set_state(cdev, MIC_RESETTING);
+			schedule_work(&cdev->reset_trigger_work);
+		}
 	} else {
 		dev_err(&cdev->dev, "%s %d MIC is READY\n", __func__, __LINE__);
 		rc = -EINVAL;
diff --git a/drivers/misc/mic/host/Makefile b/drivers/misc/mic/host/Makefile
index 004d3db..f3b5023 100644
--- a/drivers/misc/mic/host/Makefile
+++ b/drivers/misc/mic/host/Makefile
@@ -9,5 +9,3 @@ mic_host-objs += mic_smpt.o
 mic_host-objs += mic_intr.o
 mic_host-objs += mic_boot.o
 mic_host-objs += mic_debugfs.o
-mic_host-objs += mic_fops.o
-mic_host-objs += mic_virtio.o
diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
index 7845564..8c91c99 100644
--- a/drivers/misc/mic/host/mic_boot.c
+++ b/drivers/misc/mic/host/mic_boot.c
@@ -25,10 +25,117 @@
 #include <linux/mic_common.h>
 #include <linux/mic_bus.h>
 #include "../bus/scif_bus.h"
+#include "../bus/vop_bus.h"
 #include "../common/mic_dev.h"
 #include "mic_device.h"
 #include "mic_smpt.h"
-#include "mic_virtio.h"
+
+static inline struct mic_device *vpdev_to_mdev(struct device *dev)
+{
+	return dev_get_drvdata(dev->parent);
+}
+
+static dma_addr_t
+_mic_dma_map_page(struct device *dev, struct page *page,
+		  unsigned long offset, size_t size,
+		  enum dma_data_direction dir, struct dma_attrs *attrs)
+{
+	void *va = phys_to_virt(page_to_phys(page)) + offset;
+	struct mic_device *mdev = vpdev_to_mdev(dev);
+
+	return mic_map_single(mdev, va, size);
+}
+
+static void _mic_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
+				size_t size, enum dma_data_direction dir,
+				struct dma_attrs *attrs)
+{
+	struct mic_device *mdev = vpdev_to_mdev(dev);
+
+	mic_unmap_single(mdev, dma_addr, size);
+}
+
+static const struct dma_map_ops _mic_dma_ops = {
+	.map_page = _mic_dma_map_page,
+	.unmap_page = _mic_dma_unmap_page,
+};
+
+static struct mic_irq *
+__mic_request_irq(struct vop_device *vpdev,
+		  irqreturn_t (*func)(int irq, void *data),
+		  const char *name, void *data, int intr_src)
+{
+	struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+	return mic_request_threaded_irq(mdev, func, NULL, name, data,
+					intr_src, MIC_INTR_DB);
+}
+
+static void __mic_free_irq(struct vop_device *vpdev,
+			   struct mic_irq *cookie, void *data)
+{
+	struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+	return mic_free_irq(mdev, cookie, data);
+}
+
+static void __mic_ack_interrupt(struct vop_device *vpdev, int num)
+{
+	struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+	mdev->ops->intr_workarounds(mdev);
+}
+
+static int __mic_next_db(struct vop_device *vpdev)
+{
+	struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+	return mic_next_db(mdev);
+}
+
+static void *__mic_get_dp(struct vop_device *vpdev)
+{
+	struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+	return mdev->dp;
+}
+
+static void __iomem *__mic_get_remote_dp(struct vop_device *vpdev)
+{
+	return NULL;
+}
+
+static void __mic_send_intr(struct vop_device *vpdev, int db)
+{
+	struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+	mdev->ops->send_intr(mdev, db);
+}
+
+static void __iomem *__mic_ioremap(struct vop_device *vpdev,
+				   dma_addr_t pa, size_t len)
+{
+	struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+	return mdev->aper.va + pa;
+}
+
+static void __mic_iounmap(struct vop_device *vpdev, void __iomem *va)
+{
+	/* nothing to do */
+}
+
+static struct vop_hw_ops vop_hw_ops = {
+	.request_irq = __mic_request_irq,
+	.free_irq = __mic_free_irq,
+	.ack_interrupt = __mic_ack_interrupt,
+	.next_db = __mic_next_db,
+	.get_dp = __mic_get_dp,
+	.get_remote_dp = __mic_get_remote_dp,
+	.send_intr = __mic_send_intr,
+	.ioremap = __mic_ioremap,
+	.iounmap = __mic_iounmap,
+};
 
 static inline struct mic_device *scdev_to_mdev(struct scif_hw_dev *scdev)
 {
@@ -315,7 +422,6 @@ static int mic_request_dma_chans(struct mic_device *mdev)
 	dma_cap_mask_t mask;
 	struct dma_chan *chan;
 
-	request_module("mic_x100_dma");
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_MEMCPY, mask);
 
@@ -387,9 +493,18 @@ static int _mic_start(struct cosm_device *cdev, int id)
 		goto dma_free;
 	}
 
+	mdev->vpdev = vop_register_device(&mdev->pdev->dev,
+					  VOP_DEV_TRNSP, &_mic_dma_ops,
+					  &vop_hw_ops, id + 1, &mdev->aper,
+					  mdev->dma_ch[0]);
+	if (IS_ERR(mdev->vpdev)) {
+		rc = PTR_ERR(mdev->vpdev);
+		goto scif_remove;
+	}
+
 	rc = mdev->ops->load_mic_fw(mdev, NULL);
 	if (rc)
-		goto scif_remove;
+		goto vop_remove;
 	mic_smpt_restore(mdev);
 	mic_intr_restore(mdev);
 	mdev->intr_ops->enable_interrupts(mdev);
@@ -397,6 +512,8 @@ static int _mic_start(struct cosm_device *cdev, int id)
 	mdev->ops->write_spad(mdev, MIC_DPHI_SPAD, mdev->dp_dma_addr >> 32);
 	mdev->ops->send_firmware_intr(mdev);
 	goto unlock_ret;
+vop_remove:
+	vop_unregister_device(mdev->vpdev);
 scif_remove:
 	scif_unregister_device(mdev->scdev);
 dma_free:
@@ -423,7 +540,7 @@ static void _mic_stop(struct cosm_device *cdev, bool force)
 	 * will be the first to be registered and the last to be
 	 * unregistered.
 	 */
-	mic_virtio_reset_devices(mdev);
+	vop_unregister_device(mdev->vpdev);
 	scif_unregister_device(mdev->scdev);
 	mic_free_dma_chans(mdev);
 	mbus_unregister_device(mdev->dma_mbdev);
diff --git a/drivers/misc/mic/host/mic_debugfs.c b/drivers/misc/mic/host/mic_debugfs.c
index 1058160..0a9daba 100644
--- a/drivers/misc/mic/host/mic_debugfs.c
+++ b/drivers/misc/mic/host/mic_debugfs.c
@@ -26,7 +26,6 @@
 #include "../common/mic_dev.h"
 #include "mic_device.h"
 #include "mic_smpt.h"
-#include "mic_virtio.h"
 
 /* Debugfs parent dir */
 static struct dentry *mic_dbg;
@@ -100,190 +99,6 @@ static const struct file_operations post_code_ops = {
 	.release = mic_post_code_debug_release
 };
 
-static int mic_dp_show(struct seq_file *s, void *pos)
-{
-	struct mic_device *mdev = s->private;
-	struct mic_device_desc *d;
-	struct mic_device_ctrl *dc;
-	struct mic_vqconfig *vqconfig;
-	__u32 *features;
-	__u8 *config;
-	struct mic_bootparam *bootparam = mdev->dp;
-	int i, j;
-
-	seq_printf(s, "Bootparam: magic 0x%x\n",
-		   bootparam->magic);
-	seq_printf(s, "Bootparam: h2c_config_db %d\n",
-		   bootparam->h2c_config_db);
-	seq_printf(s, "Bootparam: node_id %d\n",
-		   bootparam->node_id);
-	seq_printf(s, "Bootparam: c2h_scif_db %d\n",
-		   bootparam->c2h_scif_db);
-	seq_printf(s, "Bootparam: h2c_scif_db %d\n",
-		   bootparam->h2c_scif_db);
-	seq_printf(s, "Bootparam: scif_host_dma_addr 0x%llx\n",
-		   bootparam->scif_host_dma_addr);
-	seq_printf(s, "Bootparam: scif_card_dma_addr 0x%llx\n",
-		   bootparam->scif_card_dma_addr);
-
-
-	for (i = sizeof(*bootparam); i < MIC_DP_SIZE;
-	     i += mic_total_desc_size(d)) {
-		d = mdev->dp + i;
-		dc = (void *)d + mic_aligned_desc_size(d);
-
-		/* end of list */
-		if (d->type == 0)
-			break;
-
-		if (d->type == -1)
-			continue;
-
-		seq_printf(s, "Type %d ", d->type);
-		seq_printf(s, "Num VQ %d ", d->num_vq);
-		seq_printf(s, "Feature Len %d\n", d->feature_len);
-		seq_printf(s, "Config Len %d ", d->config_len);
-		seq_printf(s, "Shutdown Status %d\n", d->status);
-
-		for (j = 0; j < d->num_vq; j++) {
-			vqconfig = mic_vq_config(d) + j;
-			seq_printf(s, "vqconfig[%d]: ", j);
-			seq_printf(s, "address 0x%llx ", vqconfig->address);
-			seq_printf(s, "num %d ", vqconfig->num);
-			seq_printf(s, "used address 0x%llx\n",
-				   vqconfig->used_address);
-		}
-
-		features = (__u32 *)mic_vq_features(d);
-		seq_printf(s, "Features: Host 0x%x ", features[0]);
-		seq_printf(s, "Guest 0x%x\n", features[1]);
-
-		config = mic_vq_configspace(d);
-		for (j = 0; j < d->config_len; j++)
-			seq_printf(s, "config[%d]=%d\n", j, config[j]);
-
-		seq_puts(s, "Device control:\n");
-		seq_printf(s, "Config Change %d ", dc->config_change);
-		seq_printf(s, "Vdev reset %d\n", dc->vdev_reset);
-		seq_printf(s, "Guest Ack %d ", dc->guest_ack);
-		seq_printf(s, "Host ack %d\n", dc->host_ack);
-		seq_printf(s, "Used address updated %d ",
-			   dc->used_address_updated);
-		seq_printf(s, "Vdev 0x%llx\n", dc->vdev);
-		seq_printf(s, "c2h doorbell %d ", dc->c2h_vdev_db);
-		seq_printf(s, "h2c doorbell %d\n", dc->h2c_vdev_db);
-	}
-
-	return 0;
-}
-
-static int mic_dp_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, mic_dp_show, inode->i_private);
-}
-
-static int mic_dp_debug_release(struct inode *inode, struct file *file)
-{
-	return single_release(inode, file);
-}
-
-static const struct file_operations dp_ops = {
-	.owner   = THIS_MODULE,
-	.open    = mic_dp_debug_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = mic_dp_debug_release
-};
-
-static int mic_vdev_info_show(struct seq_file *s, void *unused)
-{
-	struct mic_device *mdev = s->private;
-	struct list_head *pos, *tmp;
-	struct mic_vdev *mvdev;
-	int i, j;
-
-	mutex_lock(&mdev->mic_mutex);
-	list_for_each_safe(pos, tmp, &mdev->vdev_list) {
-		mvdev = list_entry(pos, struct mic_vdev, list);
-		seq_printf(s, "VDEV type %d state %s in %ld out %ld\n",
-			   mvdev->virtio_id,
-			   mic_vdevup(mvdev) ? "UP" : "DOWN",
-			   mvdev->in_bytes,
-			   mvdev->out_bytes);
-		for (i = 0; i < MIC_MAX_VRINGS; i++) {
-			struct vring_desc *desc;
-			struct vring_avail *avail;
-			struct vring_used *used;
-			struct mic_vringh *mvr = &mvdev->mvr[i];
-			struct vringh *vrh = &mvr->vrh;
-			int num = vrh->vring.num;
-			if (!num)
-				continue;
-			desc = vrh->vring.desc;
-			seq_printf(s, "vring i %d avail_idx %d",
-				   i, mvr->vring.info->avail_idx & (num - 1));
-			seq_printf(s, " vring i %d avail_idx %d\n",
-				   i, mvr->vring.info->avail_idx);
-			seq_printf(s, "vrh i %d weak_barriers %d",
-				   i, vrh->weak_barriers);
-			seq_printf(s, " last_avail_idx %d last_used_idx %d",
-				   vrh->last_avail_idx, vrh->last_used_idx);
-			seq_printf(s, " completed %d\n", vrh->completed);
-			for (j = 0; j < num; j++) {
-				seq_printf(s, "desc[%d] addr 0x%llx len %d",
-					   j, desc->addr, desc->len);
-				seq_printf(s, " flags 0x%x next %d\n",
-					   desc->flags, desc->next);
-				desc++;
-			}
-			avail = vrh->vring.avail;
-			seq_printf(s, "avail flags 0x%x idx %d\n",
-				   vringh16_to_cpu(vrh, avail->flags),
-				   vringh16_to_cpu(vrh, avail->idx) & (num - 1));
-			seq_printf(s, "avail flags 0x%x idx %d\n",
-				   vringh16_to_cpu(vrh, avail->flags),
-				   vringh16_to_cpu(vrh, avail->idx));
-			for (j = 0; j < num; j++)
-				seq_printf(s, "avail ring[%d] %d\n",
-					   j, avail->ring[j]);
-			used = vrh->vring.used;
-			seq_printf(s, "used flags 0x%x idx %d\n",
-				   vringh16_to_cpu(vrh, used->flags),
-				   vringh16_to_cpu(vrh, used->idx) & (num - 1));
-			seq_printf(s, "used flags 0x%x idx %d\n",
-				   vringh16_to_cpu(vrh, used->flags),
-				   vringh16_to_cpu(vrh, used->idx));
-			for (j = 0; j < num; j++)
-				seq_printf(s, "used ring[%d] id %d len %d\n",
-					   j, vringh32_to_cpu(vrh,
-							      used->ring[j].id),
-					   vringh32_to_cpu(vrh,
-							   used->ring[j].len));
-		}
-	}
-	mutex_unlock(&mdev->mic_mutex);
-
-	return 0;
-}
-
-static int mic_vdev_info_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, mic_vdev_info_show, inode->i_private);
-}
-
-static int mic_vdev_info_debug_release(struct inode *inode, struct file *file)
-{
-	return single_release(inode, file);
-}
-
-static const struct file_operations vdev_info_ops = {
-	.owner   = THIS_MODULE,
-	.open    = mic_vdev_info_debug_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = mic_vdev_info_debug_release
-};
-
 static int mic_msi_irq_info_show(struct seq_file *s, void *pos)
 {
 	struct mic_device *mdev  = s->private;
@@ -367,11 +182,6 @@ void mic_create_debug_dir(struct mic_device *mdev)
 	debugfs_create_file("post_code", 0444, mdev->dbg_dir, mdev,
 			    &post_code_ops);
 
-	debugfs_create_file("dp", 0444, mdev->dbg_dir, mdev, &dp_ops);
-
-	debugfs_create_file("vdev_info", 0444, mdev->dbg_dir, mdev,
-			    &vdev_info_ops);
-
 	debugfs_create_file("msi_irq_info", 0444, mdev->dbg_dir, mdev,
 			    &msi_irq_info_ops);
 }
diff --git a/drivers/misc/mic/host/mic_device.h b/drivers/misc/mic/host/mic_device.h
index 461184a..52b12b2 100644
--- a/drivers/misc/mic/host/mic_device.h
+++ b/drivers/misc/mic/host/mic_device.h
@@ -29,6 +29,7 @@
 #include <linux/miscdevice.h>
 #include <linux/mic_bus.h>
 #include "../bus/scif_bus.h"
+#include "../bus/vop_bus.h"
 #include "../bus/cosm_bus.h"
 #include "mic_intr.h"
 
@@ -64,13 +65,11 @@ extern struct cosm_hw_ops cosm_hw_ops;
  * @bootaddr: MIC boot address.
  * @dp: virtio device page
  * @dp_dma_addr: virtio device page DMA address.
- * @name: name for the misc char device
- * @miscdev: registered misc char device
- * @vdev_list: list of virtio devices.
  * @dma_mbdev: MIC BUS DMA device.
  * @dma_ch - Array of DMA channels
  * @num_dma_ch - Number of DMA channels available
  * @scdev: SCIF device on the SCIF virtual bus.
+ * @vpdev: Virtio over PCIe device on the VOP virtual bus.
  * @cosm_dev: COSM device
  */
 struct mic_device {
@@ -91,13 +90,11 @@ struct mic_device {
 	u32 bootaddr;
 	void *dp;
 	dma_addr_t dp_dma_addr;
-	char name[16];
-	struct miscdevice miscdev;
-	struct list_head vdev_list;
 	struct mbus_device *dma_mbdev;
 	struct dma_chan *dma_ch[MIC_MAX_DMA_CHAN];
 	int num_dma_ch;
 	struct scif_hw_dev *scdev;
+	struct vop_device *vpdev;
 	struct cosm_device *cosm_dev;
 };
 
diff --git a/drivers/misc/mic/host/mic_fops.c b/drivers/misc/mic/host/mic_fops.c
deleted file mode 100644
index 8cc1d90..0000000
--- a/drivers/misc/mic/host/mic_fops.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#include <linux/poll.h>
-#include <linux/pci.h>
-
-#include <linux/mic_common.h>
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-#include "mic_fops.h"
-#include "mic_virtio.h"
-
-int mic_open(struct inode *inode, struct file *f)
-{
-	struct mic_vdev *mvdev;
-	struct mic_device *mdev = container_of(f->private_data,
-		struct mic_device, miscdev);
-
-	mvdev = kzalloc(sizeof(*mvdev), GFP_KERNEL);
-	if (!mvdev)
-		return -ENOMEM;
-
-	init_waitqueue_head(&mvdev->waitq);
-	INIT_LIST_HEAD(&mvdev->list);
-	mvdev->mdev = mdev;
-	mvdev->virtio_id = -1;
-
-	f->private_data = mvdev;
-	return 0;
-}
-
-int mic_release(struct inode *inode, struct file *f)
-{
-	struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data;
-
-	if (-1 != mvdev->virtio_id)
-		mic_virtio_del_device(mvdev);
-	f->private_data = NULL;
-	kfree(mvdev);
-	return 0;
-}
-
-long mic_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
-{
-	struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data;
-	void __user *argp = (void __user *)arg;
-	int ret;
-
-	switch (cmd) {
-	case MIC_VIRTIO_ADD_DEVICE:
-	{
-		ret = mic_virtio_add_device(mvdev, argp);
-		if (ret < 0) {
-			dev_err(mic_dev(mvdev),
-				"%s %d errno ret %d\n",
-				__func__, __LINE__, ret);
-			return ret;
-		}
-		break;
-	}
-	case MIC_VIRTIO_COPY_DESC:
-	{
-		struct mic_copy_desc copy;
-
-		ret = mic_vdev_inited(mvdev);
-		if (ret)
-			return ret;
-
-		if (copy_from_user(&copy, argp, sizeof(copy)))
-			return -EFAULT;
-
-		dev_dbg(mic_dev(mvdev),
-			"%s %d === iovcnt 0x%x vr_idx 0x%x update_used %d\n",
-			__func__, __LINE__, copy.iovcnt, copy.vr_idx,
-			copy.update_used);
-
-		ret = mic_virtio_copy_desc(mvdev, &copy);
-		if (ret < 0) {
-			dev_err(mic_dev(mvdev),
-				"%s %d errno ret %d\n",
-				__func__, __LINE__, ret);
-			return ret;
-		}
-		if (copy_to_user(
-			&((struct mic_copy_desc __user *)argp)->out_len,
-			&copy.out_len, sizeof(copy.out_len))) {
-			dev_err(mic_dev(mvdev), "%s %d errno ret %d\n",
-				__func__, __LINE__, -EFAULT);
-			return -EFAULT;
-		}
-		break;
-	}
-	case MIC_VIRTIO_CONFIG_CHANGE:
-	{
-		ret = mic_vdev_inited(mvdev);
-		if (ret)
-			return ret;
-
-		ret = mic_virtio_config_change(mvdev, argp);
-		if (ret < 0) {
-			dev_err(mic_dev(mvdev),
-				"%s %d errno ret %d\n",
-				__func__, __LINE__, ret);
-			return ret;
-		}
-		break;
-	}
-	default:
-		return -ENOIOCTLCMD;
-	};
-	return 0;
-}
-
-/*
- * We return POLLIN | POLLOUT from poll when new buffers are enqueued, and
- * not when previously enqueued buffers may be available. This means that
- * in the card->host (TX) path, when userspace is unblocked by poll it
- * must drain all available descriptors or it can stall.
- */
-unsigned int mic_poll(struct file *f, poll_table *wait)
-{
-	struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data;
-	int mask = 0;
-
-	poll_wait(f, &mvdev->waitq, wait);
-
-	if (mic_vdev_inited(mvdev)) {
-		mask = POLLERR;
-	} else if (mvdev->poll_wake) {
-		mvdev->poll_wake = 0;
-		mask = POLLIN | POLLOUT;
-	}
-
-	return mask;
-}
-
-static inline int
-mic_query_offset(struct mic_vdev *mvdev, unsigned long offset,
-		 unsigned long *size, unsigned long *pa)
-{
-	struct mic_device *mdev = mvdev->mdev;
-	unsigned long start = MIC_DP_SIZE;
-	int i;
-
-	/*
-	 * MMAP interface is as follows:
-	 * offset				region
-	 * 0x0					virtio device_page
-	 * 0x1000				first vring
-	 * 0x1000 + size of 1st vring		second vring
-	 * ....
-	 */
-	if (!offset) {
-		*pa = virt_to_phys(mdev->dp);
-		*size = MIC_DP_SIZE;
-		return 0;
-	}
-
-	for (i = 0; i < mvdev->dd->num_vq; i++) {
-		struct mic_vringh *mvr = &mvdev->mvr[i];
-		if (offset == start) {
-			*pa = virt_to_phys(mvr->vring.va);
-			*size = mvr->vring.len;
-			return 0;
-		}
-		start += mvr->vring.len;
-	}
-	return -1;
-}
-
-/*
- * Maps the device page and virtio rings to user space for readonly access.
- */
-int
-mic_mmap(struct file *f, struct vm_area_struct *vma)
-{
-	struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data;
-	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
-	unsigned long pa, size = vma->vm_end - vma->vm_start, size_rem = size;
-	int i, err;
-
-	err = mic_vdev_inited(mvdev);
-	if (err)
-		return err;
-
-	if (vma->vm_flags & VM_WRITE)
-		return -EACCES;
-
-	while (size_rem) {
-		i = mic_query_offset(mvdev, offset, &size, &pa);
-		if (i < 0)
-			return -EINVAL;
-		err = remap_pfn_range(vma, vma->vm_start + offset,
-			pa >> PAGE_SHIFT, size, vma->vm_page_prot);
-		if (err)
-			return err;
-		dev_dbg(mic_dev(mvdev),
-			"%s %d type %d size 0x%lx off 0x%lx pa 0x%lx vma 0x%lx\n",
-			__func__, __LINE__, mvdev->virtio_id, size, offset,
-			pa, vma->vm_start + offset);
-		size_rem -= size;
-		offset += size;
-	}
-	return 0;
-}
diff --git a/drivers/misc/mic/host/mic_fops.h b/drivers/misc/mic/host/mic_fops.h
deleted file mode 100644
index dc3893d..0000000
--- a/drivers/misc/mic/host/mic_fops.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#ifndef _MIC_FOPS_H_
-#define _MIC_FOPS_H_
-
-int mic_open(struct inode *inode, struct file *filp);
-int mic_release(struct inode *inode, struct file *filp);
-ssize_t mic_read(struct file *filp, char __user *buf,
-			size_t count, loff_t *pos);
-long mic_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
-int mic_mmap(struct file *f, struct vm_area_struct *vma);
-unsigned int mic_poll(struct file *f, poll_table *wait);
-
-#endif
diff --git a/drivers/misc/mic/host/mic_main.c b/drivers/misc/mic/host/mic_main.c
index 153894e..035be3e 100644
--- a/drivers/misc/mic/host/mic_main.c
+++ b/drivers/misc/mic/host/mic_main.c
@@ -27,8 +27,6 @@
 #include "mic_device.h"
 #include "mic_x100.h"
 #include "mic_smpt.h"
-#include "mic_fops.h"
-#include "mic_virtio.h"
 
 static const char mic_driver_name[] = "mic";
 
@@ -57,17 +55,6 @@ MODULE_DEVICE_TABLE(pci, mic_pci_tbl);
 
 /* ID allocator for MIC devices */
 static struct ida g_mic_ida;
-/* Base device node number for MIC devices */
-static dev_t g_mic_devno;
-
-static const struct file_operations mic_fops = {
-	.open = mic_open,
-	.release = mic_release,
-	.unlocked_ioctl = mic_ioctl,
-	.poll = mic_poll,
-	.mmap = mic_mmap,
-	.owner = THIS_MODULE,
-};
 
 /* Initialize the device page */
 static int mic_dp_init(struct mic_device *mdev)
@@ -169,7 +156,6 @@ mic_device_init(struct mic_device *mdev, struct pci_dev *pdev)
 	mic_ops_init(mdev);
 	mutex_init(&mdev->mic_mutex);
 	mdev->irq_info.next_avail_src = 0;
-	INIT_LIST_HEAD(&mdev->vdev_list);
 }
 
 /**
@@ -259,30 +245,15 @@ static int mic_probe(struct pci_dev *pdev,
 		goto smpt_uninit;
 	}
 	mic_bootparam_init(mdev);
-
 	mic_create_debug_dir(mdev);
 
-	mdev->miscdev.minor = MISC_DYNAMIC_MINOR;
-	snprintf(mdev->name, sizeof(mdev->name), "mic%d", mdev->id);
-	mdev->miscdev.name = mdev->name;
-	mdev->miscdev.fops = &mic_fops;
-	mdev->miscdev.parent = &mdev->pdev->dev;
-	rc = misc_register(&mdev->miscdev);
-	if (rc) {
-		dev_err(&pdev->dev, "misc_register err id %d rc %d\n",
-			mdev->id, rc);
-		goto cleanup_debug_dir;
-	}
-
 	mdev->cosm_dev = cosm_register_device(&mdev->pdev->dev, &cosm_hw_ops);
 	if (IS_ERR(mdev->cosm_dev)) {
 		rc = PTR_ERR(mdev->cosm_dev);
 		dev_err(&pdev->dev, "cosm_add_device failed rc %d\n", rc);
-		goto misc_dereg;
+		goto cleanup_debug_dir;
 	}
 	return 0;
-misc_dereg:
-	misc_deregister(&mdev->miscdev);
 cleanup_debug_dir:
 	mic_delete_debug_dir(mdev);
 	mic_dp_uninit(mdev);
@@ -323,7 +294,6 @@ static void mic_remove(struct pci_dev *pdev)
 		return;
 
 	cosm_unregister_device(mdev->cosm_dev);
-	misc_deregister(&mdev->miscdev);
 	mic_delete_debug_dir(mdev);
 	mic_dp_uninit(mdev);
 	mic_smpt_uninit(mdev);
@@ -347,26 +317,18 @@ static int __init mic_init(void)
 {
 	int ret;
 
-	ret = alloc_chrdev_region(&g_mic_devno, 0,
-				  MIC_MAX_NUM_DEVS, mic_driver_name);
-	if (ret) {
-		pr_err("alloc_chrdev_region failed ret %d\n", ret);
-		goto error;
-	}
-
+	request_module("mic_x100_dma");
 	mic_init_debugfs();
 	ida_init(&g_mic_ida);
 	ret = pci_register_driver(&mic_driver);
 	if (ret) {
 		pr_err("pci_register_driver failed ret %d\n", ret);
-		goto cleanup_chrdev;
+		goto cleanup_debugfs;
 	}
-	return ret;
-cleanup_chrdev:
+	return 0;
+cleanup_debugfs:
 	ida_destroy(&g_mic_ida);
 	mic_exit_debugfs();
-	unregister_chrdev_region(g_mic_devno, MIC_MAX_NUM_DEVS);
-error:
 	return ret;
 }
 
@@ -375,7 +337,6 @@ static void __exit mic_exit(void)
 	pci_unregister_driver(&mic_driver);
 	ida_destroy(&g_mic_ida);
 	mic_exit_debugfs();
-	unregister_chrdev_region(g_mic_devno, MIC_MAX_NUM_DEVS);
 }
 
 module_init(mic_init);
diff --git a/drivers/misc/mic/host/mic_virtio.c b/drivers/misc/mic/host/mic_virtio.c
deleted file mode 100644
index 58b107a..0000000
--- a/drivers/misc/mic/host/mic_virtio.c
+++ /dev/null
@@ -1,811 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#include <linux/pci.h>
-#include <linux/sched.h>
-#include <linux/uaccess.h>
-#include <linux/dmaengine.h>
-#include <linux/mic_common.h>
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-#include "mic_smpt.h"
-#include "mic_virtio.h"
-
-/*
- * Size of the internal buffer used during DMA's as an intermediate buffer
- * for copy to/from user.
- */
-#define MIC_INT_DMA_BUF_SIZE PAGE_ALIGN(64 * 1024ULL)
-
-static int mic_sync_dma(struct mic_device *mdev, dma_addr_t dst,
-			dma_addr_t src, size_t len)
-{
-	int err = 0;
-	struct dma_async_tx_descriptor *tx;
-	struct dma_chan *mic_ch = mdev->dma_ch[0];
-
-	if (!mic_ch) {
-		err = -EBUSY;
-		goto error;
-	}
-
-	tx = mic_ch->device->device_prep_dma_memcpy(mic_ch, dst, src, len,
-						    DMA_PREP_FENCE);
-	if (!tx) {
-		err = -ENOMEM;
-		goto error;
-	} else {
-		dma_cookie_t cookie = tx->tx_submit(tx);
-
-		err = dma_submit_error(cookie);
-		if (err)
-			goto error;
-		err = dma_sync_wait(mic_ch, cookie);
-	}
-error:
-	if (err)
-		dev_err(&mdev->pdev->dev, "%s %d err %d\n",
-			__func__, __LINE__, err);
-	return err;
-}
-
-/*
- * Initiates the copies across the PCIe bus from card memory to a user
- * space buffer. When transfers are done using DMA, source/destination
- * addresses and transfer length must follow the alignment requirements of
- * the MIC DMA engine.
- */
-static int mic_virtio_copy_to_user(struct mic_vdev *mvdev, void __user *ubuf,
-				   size_t len, u64 daddr, size_t dlen,
-				   int vr_idx)
-{
-	struct mic_device *mdev = mvdev->mdev;
-	void __iomem *dbuf = mdev->aper.va + daddr;
-	struct mic_vringh *mvr = &mvdev->mvr[vr_idx];
-	size_t dma_alignment = 1 << mdev->dma_ch[0]->device->copy_align;
-	size_t dma_offset;
-	size_t partlen;
-	int err;
-
-	dma_offset = daddr - round_down(daddr, dma_alignment);
-	daddr -= dma_offset;
-	len += dma_offset;
-
-	while (len) {
-		partlen = min_t(size_t, len, MIC_INT_DMA_BUF_SIZE);
-
-		err = mic_sync_dma(mdev, mvr->buf_da, daddr,
-				   ALIGN(partlen, dma_alignment));
-		if (err)
-			goto err;
-
-		if (copy_to_user(ubuf, mvr->buf + dma_offset,
-				 partlen - dma_offset)) {
-			err = -EFAULT;
-			goto err;
-		}
-		daddr += partlen;
-		ubuf += partlen;
-		dbuf += partlen;
-		mvdev->in_bytes_dma += partlen;
-		mvdev->in_bytes += partlen;
-		len -= partlen;
-		dma_offset = 0;
-	}
-	return 0;
-err:
-	dev_err(mic_dev(mvdev), "%s %d err %d\n", __func__, __LINE__, err);
-	return err;
-}
-
-/*
- * Initiates copies across the PCIe bus from a user space buffer to card
- * memory. When transfers are done using DMA, source/destination addresses
- * and transfer length must follow the alignment requirements of the MIC
- * DMA engine.
- */
-static int mic_virtio_copy_from_user(struct mic_vdev *mvdev, void __user *ubuf,
-				     size_t len, u64 daddr, size_t dlen,
-				     int vr_idx)
-{
-	struct mic_device *mdev = mvdev->mdev;
-	void __iomem *dbuf = mdev->aper.va + daddr;
-	struct mic_vringh *mvr = &mvdev->mvr[vr_idx];
-	size_t dma_alignment = 1 << mdev->dma_ch[0]->device->copy_align;
-	size_t partlen;
-	int err;
-
-	if (daddr & (dma_alignment - 1)) {
-		mvdev->tx_dst_unaligned += len;
-		goto memcpy;
-	} else if (ALIGN(len, dma_alignment) > dlen) {
-		mvdev->tx_len_unaligned += len;
-		goto memcpy;
-	}
-
-	while (len) {
-		partlen = min_t(size_t, len, MIC_INT_DMA_BUF_SIZE);
-
-		if (copy_from_user(mvr->buf, ubuf, partlen)) {
-			err = -EFAULT;
-			goto err;
-		}
-		err = mic_sync_dma(mdev, daddr, mvr->buf_da,
-				   ALIGN(partlen, dma_alignment));
-		if (err)
-			goto err;
-		daddr += partlen;
-		ubuf += partlen;
-		dbuf += partlen;
-		mvdev->out_bytes_dma += partlen;
-		mvdev->out_bytes += partlen;
-		len -= partlen;
-	}
-memcpy:
-	/*
-	 * We are copying to IO below and should ideally use something
-	 * like copy_from_user_toio(..) if it existed.
-	 */
-	if (copy_from_user((void __force *)dbuf, ubuf, len)) {
-		err = -EFAULT;
-		goto err;
-	}
-	mvdev->out_bytes += len;
-	return 0;
-err:
-	dev_err(mic_dev(mvdev), "%s %d err %d\n", __func__, __LINE__, err);
-	return err;
-}
-
-#define MIC_VRINGH_READ true
-
-/* The function to call to notify the card about added buffers */
-static void mic_notify(struct vringh *vrh)
-{
-	struct mic_vringh *mvrh = container_of(vrh, struct mic_vringh, vrh);
-	struct mic_vdev *mvdev = mvrh->mvdev;
-	s8 db = mvdev->dc->h2c_vdev_db;
-
-	if (db != -1)
-		mvdev->mdev->ops->send_intr(mvdev->mdev, db);
-}
-
-/* Determine the total number of bytes consumed in a VRINGH KIOV */
-static inline u32 mic_vringh_iov_consumed(struct vringh_kiov *iov)
-{
-	int i;
-	u32 total = iov->consumed;
-
-	for (i = 0; i < iov->i; i++)
-		total += iov->iov[i].iov_len;
-	return total;
-}
-
-/*
- * Traverse the VRINGH KIOV and issue the APIs to trigger the copies.
- * This API is heavily based on the vringh_iov_xfer(..) implementation
- * in vringh.c. The reason we cannot reuse vringh_iov_pull_kern(..)
- * and vringh_iov_push_kern(..) directly is because there is no
- * way to override the VRINGH xfer(..) routines as of v3.10.
- */
-static int mic_vringh_copy(struct mic_vdev *mvdev, struct vringh_kiov *iov,
-			void __user *ubuf, size_t len, bool read, int vr_idx,
-			size_t *out_len)
-{
-	int ret = 0;
-	size_t partlen, tot_len = 0;
-
-	while (len && iov->i < iov->used) {
-		partlen = min(iov->iov[iov->i].iov_len, len);
-		if (read)
-			ret = mic_virtio_copy_to_user(mvdev, ubuf, partlen,
-						(u64)iov->iov[iov->i].iov_base,
-						iov->iov[iov->i].iov_len,
-						vr_idx);
-		else
-			ret = mic_virtio_copy_from_user(mvdev, ubuf, partlen,
-						(u64)iov->iov[iov->i].iov_base,
-						iov->iov[iov->i].iov_len,
-						vr_idx);
-		if (ret) {
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			break;
-		}
-		len -= partlen;
-		ubuf += partlen;
-		tot_len += partlen;
-		iov->consumed += partlen;
-		iov->iov[iov->i].iov_len -= partlen;
-		iov->iov[iov->i].iov_base += partlen;
-		if (!iov->iov[iov->i].iov_len) {
-			/* Fix up old iov element then increment. */
-			iov->iov[iov->i].iov_len = iov->consumed;
-			iov->iov[iov->i].iov_base -= iov->consumed;
-
-			iov->consumed = 0;
-			iov->i++;
-		}
-	}
-	*out_len = tot_len;
-	return ret;
-}
-
-/*
- * Use the standard VRINGH infrastructure in the kernel to fetch new
- * descriptors, initiate the copies and update the used ring.
- */
-static int _mic_virtio_copy(struct mic_vdev *mvdev,
-	struct mic_copy_desc *copy)
-{
-	int ret = 0;
-	u32 iovcnt = copy->iovcnt;
-	struct iovec iov;
-	struct iovec __user *u_iov = copy->iov;
-	void __user *ubuf = NULL;
-	struct mic_vringh *mvr = &mvdev->mvr[copy->vr_idx];
-	struct vringh_kiov *riov = &mvr->riov;
-	struct vringh_kiov *wiov = &mvr->wiov;
-	struct vringh *vrh = &mvr->vrh;
-	u16 *head = &mvr->head;
-	struct mic_vring *vr = &mvr->vring;
-	size_t len = 0, out_len;
-
-	copy->out_len = 0;
-	/* Fetch a new IOVEC if all previous elements have been processed */
-	if (riov->i == riov->used && wiov->i == wiov->used) {
-		ret = vringh_getdesc_kern(vrh, riov, wiov,
-				head, GFP_KERNEL);
-		/* Check if there are available descriptors */
-		if (ret <= 0)
-			return ret;
-	}
-	while (iovcnt) {
-		if (!len) {
-			/* Copy over a new iovec from user space. */
-			ret = copy_from_user(&iov, u_iov, sizeof(*u_iov));
-			if (ret) {
-				ret = -EINVAL;
-				dev_err(mic_dev(mvdev), "%s %d err %d\n",
-					__func__, __LINE__, ret);
-				break;
-			}
-			len = iov.iov_len;
-			ubuf = iov.iov_base;
-		}
-		/* Issue all the read descriptors first */
-		ret = mic_vringh_copy(mvdev, riov, ubuf, len, MIC_VRINGH_READ,
-				      copy->vr_idx, &out_len);
-		if (ret) {
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			break;
-		}
-		len -= out_len;
-		ubuf += out_len;
-		copy->out_len += out_len;
-		/* Issue the write descriptors next */
-		ret = mic_vringh_copy(mvdev, wiov, ubuf, len, !MIC_VRINGH_READ,
-				      copy->vr_idx, &out_len);
-		if (ret) {
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			break;
-		}
-		len -= out_len;
-		ubuf += out_len;
-		copy->out_len += out_len;
-		if (!len) {
-			/* One user space iovec is now completed */
-			iovcnt--;
-			u_iov++;
-		}
-		/* Exit loop if all elements in KIOVs have been processed. */
-		if (riov->i == riov->used && wiov->i == wiov->used)
-			break;
-	}
-	/*
-	 * Update the used ring if a descriptor was available and some data was
-	 * copied in/out and the user asked for a used ring update.
-	 */
-	if (*head != USHRT_MAX && copy->out_len && copy->update_used) {
-		u32 total = 0;
-
-		/* Determine the total data consumed */
-		total += mic_vringh_iov_consumed(riov);
-		total += mic_vringh_iov_consumed(wiov);
-		vringh_complete_kern(vrh, *head, total);
-		*head = USHRT_MAX;
-		if (vringh_need_notify_kern(vrh) > 0)
-			vringh_notify(vrh);
-		vringh_kiov_cleanup(riov);
-		vringh_kiov_cleanup(wiov);
-		/* Update avail idx for user space */
-		vr->info->avail_idx = vrh->last_avail_idx;
-	}
-	return ret;
-}
-
-static inline int mic_verify_copy_args(struct mic_vdev *mvdev,
-		struct mic_copy_desc *copy)
-{
-	if (copy->vr_idx >= mvdev->dd->num_vq) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -EINVAL);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/* Copy a specified number of virtio descriptors in a chain */
-int mic_virtio_copy_desc(struct mic_vdev *mvdev,
-		struct mic_copy_desc *copy)
-{
-	int err;
-	struct mic_vringh *mvr = &mvdev->mvr[copy->vr_idx];
-
-	err = mic_verify_copy_args(mvdev, copy);
-	if (err)
-		return err;
-
-	mutex_lock(&mvr->vr_mutex);
-	if (!mic_vdevup(mvdev)) {
-		err = -ENODEV;
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, err);
-		goto err;
-	}
-	err = _mic_virtio_copy(mvdev, copy);
-	if (err) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, err);
-	}
-err:
-	mutex_unlock(&mvr->vr_mutex);
-	return err;
-}
-
-static void mic_virtio_init_post(struct mic_vdev *mvdev)
-{
-	struct mic_vqconfig *vqconfig = mic_vq_config(mvdev->dd);
-	int i;
-
-	for (i = 0; i < mvdev->dd->num_vq; i++) {
-		if (!le64_to_cpu(vqconfig[i].used_address)) {
-			dev_warn(mic_dev(mvdev), "used_address zero??\n");
-			continue;
-		}
-		mvdev->mvr[i].vrh.vring.used =
-			(void __force *)mvdev->mdev->aper.va +
-			le64_to_cpu(vqconfig[i].used_address);
-	}
-
-	mvdev->dc->used_address_updated = 0;
-
-	dev_dbg(mic_dev(mvdev), "%s: device type %d LINKUP\n",
-		__func__, mvdev->virtio_id);
-}
-
-static inline void mic_virtio_device_reset(struct mic_vdev *mvdev)
-{
-	int i;
-
-	dev_dbg(mic_dev(mvdev), "%s: status %d device type %d RESET\n",
-		__func__, mvdev->dd->status, mvdev->virtio_id);
-
-	for (i = 0; i < mvdev->dd->num_vq; i++)
-		/*
-		 * Avoid lockdep false positive. The + 1 is for the mic
-		 * mutex which is held in the reset devices code path.
-		 */
-		mutex_lock_nested(&mvdev->mvr[i].vr_mutex, i + 1);
-
-	/* 0 status means "reset" */
-	mvdev->dd->status = 0;
-	mvdev->dc->vdev_reset = 0;
-	mvdev->dc->host_ack = 1;
-
-	for (i = 0; i < mvdev->dd->num_vq; i++) {
-		struct vringh *vrh = &mvdev->mvr[i].vrh;
-		mvdev->mvr[i].vring.info->avail_idx = 0;
-		vrh->completed = 0;
-		vrh->last_avail_idx = 0;
-		vrh->last_used_idx = 0;
-	}
-
-	for (i = 0; i < mvdev->dd->num_vq; i++)
-		mutex_unlock(&mvdev->mvr[i].vr_mutex);
-}
-
-void mic_virtio_reset_devices(struct mic_device *mdev)
-{
-	struct list_head *pos, *tmp;
-	struct mic_vdev *mvdev;
-
-	dev_dbg(&mdev->pdev->dev, "%s\n",  __func__);
-
-	list_for_each_safe(pos, tmp, &mdev->vdev_list) {
-		mvdev = list_entry(pos, struct mic_vdev, list);
-		mic_virtio_device_reset(mvdev);
-		mvdev->poll_wake = 1;
-		wake_up(&mvdev->waitq);
-	}
-}
-
-void mic_bh_handler(struct work_struct *work)
-{
-	struct mic_vdev *mvdev = container_of(work, struct mic_vdev,
-			virtio_bh_work);
-
-	if (mvdev->dc->used_address_updated)
-		mic_virtio_init_post(mvdev);
-
-	if (mvdev->dc->vdev_reset)
-		mic_virtio_device_reset(mvdev);
-
-	mvdev->poll_wake = 1;
-	wake_up(&mvdev->waitq);
-}
-
-static irqreturn_t mic_virtio_intr_handler(int irq, void *data)
-{
-	struct mic_vdev *mvdev = data;
-	struct mic_device *mdev = mvdev->mdev;
-
-	mdev->ops->intr_workarounds(mdev);
-	schedule_work(&mvdev->virtio_bh_work);
-	return IRQ_HANDLED;
-}
-
-int mic_virtio_config_change(struct mic_vdev *mvdev,
-			void __user *argp)
-{
-	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake);
-	int ret = 0, retry, i;
-	struct mic_bootparam *bootparam = mvdev->mdev->dp;
-	s8 db = bootparam->h2c_config_db;
-
-	mutex_lock(&mvdev->mdev->mic_mutex);
-	for (i = 0; i < mvdev->dd->num_vq; i++)
-		mutex_lock_nested(&mvdev->mvr[i].vr_mutex, i + 1);
-
-	if (db == -1 || mvdev->dd->type == -1) {
-		ret = -EIO;
-		goto exit;
-	}
-
-	if (copy_from_user(mic_vq_configspace(mvdev->dd),
-			   argp, mvdev->dd->config_len)) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -EFAULT);
-		ret = -EFAULT;
-		goto exit;
-	}
-	mvdev->dc->config_change = MIC_VIRTIO_PARAM_CONFIG_CHANGED;
-	mvdev->mdev->ops->send_intr(mvdev->mdev, db);
-
-	for (retry = 100; retry--;) {
-		ret = wait_event_timeout(wake,
-			mvdev->dc->guest_ack, msecs_to_jiffies(100));
-		if (ret)
-			break;
-	}
-
-	dev_dbg(mic_dev(mvdev),
-		"%s %d retry: %d\n", __func__, __LINE__, retry);
-	mvdev->dc->config_change = 0;
-	mvdev->dc->guest_ack = 0;
-exit:
-	for (i = 0; i < mvdev->dd->num_vq; i++)
-		mutex_unlock(&mvdev->mvr[i].vr_mutex);
-	mutex_unlock(&mvdev->mdev->mic_mutex);
-	return ret;
-}
-
-static int mic_copy_dp_entry(struct mic_vdev *mvdev,
-					void __user *argp,
-					__u8 *type,
-					struct mic_device_desc **devpage)
-{
-	struct mic_device *mdev = mvdev->mdev;
-	struct mic_device_desc dd, *dd_config, *devp;
-	struct mic_vqconfig *vqconfig;
-	int ret = 0, i;
-	bool slot_found = false;
-
-	if (copy_from_user(&dd, argp, sizeof(dd))) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -EFAULT);
-		return -EFAULT;
-	}
-
-	if (mic_aligned_desc_size(&dd) > MIC_MAX_DESC_BLK_SIZE ||
-	    dd.num_vq > MIC_MAX_VRINGS) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -EINVAL);
-		return -EINVAL;
-	}
-
-	dd_config = kmalloc(mic_desc_size(&dd), GFP_KERNEL);
-	if (dd_config == NULL) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -ENOMEM);
-		return -ENOMEM;
-	}
-	if (copy_from_user(dd_config, argp, mic_desc_size(&dd))) {
-		ret = -EFAULT;
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, ret);
-		goto exit;
-	}
-
-	vqconfig = mic_vq_config(dd_config);
-	for (i = 0; i < dd.num_vq; i++) {
-		if (le16_to_cpu(vqconfig[i].num) > MIC_MAX_VRING_ENTRIES) {
-			ret =  -EINVAL;
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			goto exit;
-		}
-	}
-
-	/* Find the first free device page entry */
-	for (i = sizeof(struct mic_bootparam);
-		i < MIC_DP_SIZE - mic_total_desc_size(dd_config);
-		i += mic_total_desc_size(devp)) {
-		devp = mdev->dp + i;
-		if (devp->type == 0 || devp->type == -1) {
-			slot_found = true;
-			break;
-		}
-	}
-	if (!slot_found) {
-		ret =  -EINVAL;
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, ret);
-		goto exit;
-	}
-	/*
-	 * Save off the type before doing the memcpy. Type will be set in the
-	 * end after completing all initialization for the new device.
-	 */
-	*type = dd_config->type;
-	dd_config->type = 0;
-	memcpy(devp, dd_config, mic_desc_size(dd_config));
-
-	*devpage = devp;
-exit:
-	kfree(dd_config);
-	return ret;
-}
-
-static void mic_init_device_ctrl(struct mic_vdev *mvdev,
-				struct mic_device_desc *devpage)
-{
-	struct mic_device_ctrl *dc;
-
-	dc = (void *)devpage + mic_aligned_desc_size(devpage);
-
-	dc->config_change = 0;
-	dc->guest_ack = 0;
-	dc->vdev_reset = 0;
-	dc->host_ack = 0;
-	dc->used_address_updated = 0;
-	dc->c2h_vdev_db = -1;
-	dc->h2c_vdev_db = -1;
-	mvdev->dc = dc;
-}
-
-int mic_virtio_add_device(struct mic_vdev *mvdev,
-			void __user *argp)
-{
-	struct mic_device *mdev = mvdev->mdev;
-	struct mic_device_desc *dd = NULL;
-	struct mic_vqconfig *vqconfig;
-	int vr_size, i, j, ret;
-	u8 type = 0;
-	s8 db;
-	char irqname[10];
-	struct mic_bootparam *bootparam = mdev->dp;
-	u16 num;
-	dma_addr_t vr_addr;
-
-	mutex_lock(&mdev->mic_mutex);
-
-	ret = mic_copy_dp_entry(mvdev, argp, &type, &dd);
-	if (ret) {
-		mutex_unlock(&mdev->mic_mutex);
-		return ret;
-	}
-
-	mic_init_device_ctrl(mvdev, dd);
-
-	mvdev->dd = dd;
-	mvdev->virtio_id = type;
-	vqconfig = mic_vq_config(dd);
-	INIT_WORK(&mvdev->virtio_bh_work, mic_bh_handler);
-
-	for (i = 0; i < dd->num_vq; i++) {
-		struct mic_vringh *mvr = &mvdev->mvr[i];
-		struct mic_vring *vr = &mvdev->mvr[i].vring;
-		num = le16_to_cpu(vqconfig[i].num);
-		mutex_init(&mvr->vr_mutex);
-		vr_size = PAGE_ALIGN(vring_size(num, MIC_VIRTIO_RING_ALIGN) +
-			sizeof(struct _mic_vring_info));
-		vr->va = (void *)
-			__get_free_pages(GFP_KERNEL | __GFP_ZERO,
-					 get_order(vr_size));
-		if (!vr->va) {
-			ret = -ENOMEM;
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			goto err;
-		}
-		vr->len = vr_size;
-		vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN);
-		vr->info->magic = cpu_to_le32(MIC_MAGIC + mvdev->virtio_id + i);
-		vr_addr = mic_map_single(mdev, vr->va, vr_size);
-		if (mic_map_error(vr_addr)) {
-			free_pages((unsigned long)vr->va, get_order(vr_size));
-			ret = -ENOMEM;
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			goto err;
-		}
-		vqconfig[i].address = cpu_to_le64(vr_addr);
-
-		vring_init(&vr->vr, num, vr->va, MIC_VIRTIO_RING_ALIGN);
-		ret = vringh_init_kern(&mvr->vrh,
-			*(u32 *)mic_vq_features(mvdev->dd), num, false,
-			vr->vr.desc, vr->vr.avail, vr->vr.used);
-		if (ret) {
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			goto err;
-		}
-		vringh_kiov_init(&mvr->riov, NULL, 0);
-		vringh_kiov_init(&mvr->wiov, NULL, 0);
-		mvr->head = USHRT_MAX;
-		mvr->mvdev = mvdev;
-		mvr->vrh.notify = mic_notify;
-		dev_dbg(&mdev->pdev->dev,
-			"%s %d index %d va %p info %p vr_size 0x%x\n",
-			__func__, __LINE__, i, vr->va, vr->info, vr_size);
-		mvr->buf = (void *)__get_free_pages(GFP_KERNEL,
-					get_order(MIC_INT_DMA_BUF_SIZE));
-		mvr->buf_da = mic_map_single(mvdev->mdev, mvr->buf,
-					  MIC_INT_DMA_BUF_SIZE);
-	}
-
-	snprintf(irqname, sizeof(irqname), "mic%dvirtio%d", mdev->id,
-		 mvdev->virtio_id);
-	mvdev->virtio_db = mic_next_db(mdev);
-	mvdev->virtio_cookie = mic_request_threaded_irq(mdev,
-					       mic_virtio_intr_handler,
-					       NULL, irqname, mvdev,
-					       mvdev->virtio_db, MIC_INTR_DB);
-	if (IS_ERR(mvdev->virtio_cookie)) {
-		ret = PTR_ERR(mvdev->virtio_cookie);
-		dev_dbg(&mdev->pdev->dev, "request irq failed\n");
-		goto err;
-	}
-
-	mvdev->dc->c2h_vdev_db = mvdev->virtio_db;
-
-	list_add_tail(&mvdev->list, &mdev->vdev_list);
-	/*
-	 * Order the type update with previous stores. This write barrier
-	 * is paired with the corresponding read barrier before the uncached
-	 * system memory read of the type, on the card while scanning the
-	 * device page.
-	 */
-	smp_wmb();
-	dd->type = type;
-
-	dev_dbg(&mdev->pdev->dev, "Added virtio device id %d\n", dd->type);
-
-	db = bootparam->h2c_config_db;
-	if (db != -1)
-		mdev->ops->send_intr(mdev, db);
-	mutex_unlock(&mdev->mic_mutex);
-	return 0;
-err:
-	vqconfig = mic_vq_config(dd);
-	for (j = 0; j < i; j++) {
-		struct mic_vringh *mvr = &mvdev->mvr[j];
-		mic_unmap_single(mdev, le64_to_cpu(vqconfig[j].address),
-				 mvr->vring.len);
-		free_pages((unsigned long)mvr->vring.va,
-			   get_order(mvr->vring.len));
-	}
-	mutex_unlock(&mdev->mic_mutex);
-	return ret;
-}
-
-void mic_virtio_del_device(struct mic_vdev *mvdev)
-{
-	struct list_head *pos, *tmp;
-	struct mic_vdev *tmp_mvdev;
-	struct mic_device *mdev = mvdev->mdev;
-	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake);
-	int i, ret, retry;
-	struct mic_vqconfig *vqconfig;
-	struct mic_bootparam *bootparam = mdev->dp;
-	s8 db;
-
-	mutex_lock(&mdev->mic_mutex);
-	db = bootparam->h2c_config_db;
-	if (db == -1)
-		goto skip_hot_remove;
-	dev_dbg(&mdev->pdev->dev,
-		"Requesting hot remove id %d\n", mvdev->virtio_id);
-	mvdev->dc->config_change = MIC_VIRTIO_PARAM_DEV_REMOVE;
-	mdev->ops->send_intr(mdev, db);
-	for (retry = 100; retry--;) {
-		ret = wait_event_timeout(wake,
-			mvdev->dc->guest_ack, msecs_to_jiffies(100));
-		if (ret)
-			break;
-	}
-	dev_dbg(&mdev->pdev->dev,
-		"Device id %d config_change %d guest_ack %d retry %d\n",
-		mvdev->virtio_id, mvdev->dc->config_change,
-		mvdev->dc->guest_ack, retry);
-	mvdev->dc->config_change = 0;
-	mvdev->dc->guest_ack = 0;
-skip_hot_remove:
-	mic_free_irq(mdev, mvdev->virtio_cookie, mvdev);
-	flush_work(&mvdev->virtio_bh_work);
-	vqconfig = mic_vq_config(mvdev->dd);
-	for (i = 0; i < mvdev->dd->num_vq; i++) {
-		struct mic_vringh *mvr = &mvdev->mvr[i];
-
-		mic_unmap_single(mvdev->mdev, mvr->buf_da,
-				 MIC_INT_DMA_BUF_SIZE);
-		free_pages((unsigned long)mvr->buf,
-			   get_order(MIC_INT_DMA_BUF_SIZE));
-		vringh_kiov_cleanup(&mvr->riov);
-		vringh_kiov_cleanup(&mvr->wiov);
-		mic_unmap_single(mdev, le64_to_cpu(vqconfig[i].address),
-				 mvr->vring.len);
-		free_pages((unsigned long)mvr->vring.va,
-			   get_order(mvr->vring.len));
-	}
-
-	list_for_each_safe(pos, tmp, &mdev->vdev_list) {
-		tmp_mvdev = list_entry(pos, struct mic_vdev, list);
-		if (tmp_mvdev == mvdev) {
-			list_del(pos);
-			dev_dbg(&mdev->pdev->dev,
-				"Removing virtio device id %d\n",
-				mvdev->virtio_id);
-			break;
-		}
-	}
-	/*
-	 * Order the type update with previous stores. This write barrier
-	 * is paired with the corresponding read barrier before the uncached
-	 * system memory read of the type, on the card while scanning the
-	 * device page.
-	 */
-	smp_wmb();
-	mvdev->dd->type = -1;
-	mutex_unlock(&mdev->mic_mutex);
-}
diff --git a/drivers/misc/mic/host/mic_x100.c b/drivers/misc/mic/host/mic_x100.c
index 8118ac4..82a973c 100644
--- a/drivers/misc/mic/host/mic_x100.c
+++ b/drivers/misc/mic/host/mic_x100.c
@@ -450,26 +450,29 @@ mic_x100_load_firmware(struct mic_device *mdev, const char *buf)
 
 	rc = mic_x100_get_boot_addr(mdev);
 	if (rc)
-		goto error;
+		return rc;
 	/* load OS */
 	rc = request_firmware(&fw, mdev->cosm_dev->firmware, &mdev->pdev->dev);
 	if (rc < 0) {
 		dev_err(&mdev->pdev->dev,
 			"ramdisk request_firmware failed: %d %s\n",
 			rc, mdev->cosm_dev->firmware);
-		goto error;
+		return rc;
 	}
 	if (mdev->bootaddr > mdev->aper.len - fw->size) {
 		rc = -EINVAL;
 		dev_err(&mdev->pdev->dev, "%s %d rc %d bootaddr 0x%x\n",
 			__func__, __LINE__, rc, mdev->bootaddr);
-		release_firmware(fw);
 		goto error;
 	}
 	memcpy_toio(mdev->aper.va + mdev->bootaddr, fw->data, fw->size);
 	mdev->ops->write_spad(mdev, MIC_X100_FW_SIZE, fw->size);
-	if (!strcmp(mdev->cosm_dev->bootmode, "flash"))
-		goto done;
+	if (!strcmp(mdev->cosm_dev->bootmode, "flash")) {
+		rc = -EINVAL;
+		dev_err(&mdev->pdev->dev, "%s %d rc %d\n",
+			__func__, __LINE__, rc);
+		goto error;
+	}
 	/* load command line */
 	rc = mic_x100_load_command_line(mdev, fw);
 	if (rc) {
@@ -481,9 +484,11 @@ mic_x100_load_firmware(struct mic_device *mdev, const char *buf)
 	/* load ramdisk */
 	if (mdev->cosm_dev->ramdisk)
 		rc = mic_x100_load_ramdisk(mdev);
+
+	return rc;
+
 error:
-	dev_dbg(&mdev->pdev->dev, "%s %d rc %d\n", __func__, __LINE__, rc);
-done:
+	release_firmware(fw);
 	return rc;
 }
 
diff --git a/drivers/misc/mic/scif/scif_dma.c b/drivers/misc/mic/scif/scif_dma.c
index 95a13c6..cd01a0e 100644
--- a/drivers/misc/mic/scif/scif_dma.c
+++ b/drivers/misc/mic/scif/scif_dma.c
@@ -74,11 +74,6 @@ struct scif_copy_work {
 	bool ordered;
 };
 
-#ifndef list_entry_next
-#define list_entry_next(pos, member) \
-	list_entry(pos->member.next, typeof(*pos), member)
-#endif
-
 /**
  * scif_reserve_dma_chan:
  * @ep: Endpoint Descriptor.
@@ -276,13 +271,10 @@ static struct scif_mmu_notif *
 scif_find_mmu_notifier(struct mm_struct *mm, struct scif_endpt_rma_info *rma)
 {
 	struct scif_mmu_notif *mmn;
-	struct list_head *item;
 
-	list_for_each(item, &rma->mmn_list) {
-		mmn = list_entry(item, struct scif_mmu_notif, list);
+	list_for_each_entry(mmn, &rma->mmn_list, list)
 		if (mmn->mm == mm)
 			return mmn;
-	}
 	return NULL;
 }
 
@@ -293,13 +285,12 @@ scif_add_mmu_notifier(struct mm_struct *mm, struct scif_endpt *ep)
 		 = kzalloc(sizeof(*mmn), GFP_KERNEL);
 
 	if (!mmn)
-		return ERR_PTR(ENOMEM);
+		return ERR_PTR(-ENOMEM);
 
 	scif_init_mmu_notifier(mmn, current->mm, ep);
-	if (mmu_notifier_register(&mmn->ep_mmu_notifier,
-				  current->mm)) {
+	if (mmu_notifier_register(&mmn->ep_mmu_notifier, current->mm)) {
 		kfree(mmn);
-		return ERR_PTR(EBUSY);
+		return ERR_PTR(-EBUSY);
 	}
 	list_add(&mmn->list, &ep->rma_info.mmn_list);
 	return mmn;
@@ -851,7 +842,7 @@ static void scif_rma_local_cpu_copy(s64 offset, struct scif_window *window,
 		(window->nr_pages << PAGE_SHIFT);
 	while (rem_len) {
 		if (offset == end_offset) {
-			window = list_entry_next(window, list);
+			window = list_next_entry(window, list);
 			end_offset = window->offset +
 				(window->nr_pages << PAGE_SHIFT);
 		}
@@ -957,7 +948,7 @@ scif_rma_list_dma_copy_unaligned(struct scif_copy_work *work,
 	remaining_len -= tail_len;
 	while (remaining_len) {
 		if (offset == end_offset) {
-			window = list_entry_next(window, list);
+			window = list_next_entry(window, list);
 			end_offset = window->offset +
 				(window->nr_pages << PAGE_SHIFT);
 		}
@@ -1064,7 +1055,7 @@ scif_rma_list_dma_copy_unaligned(struct scif_copy_work *work,
 	}
 	if (tail_len) {
 		if (offset == end_offset) {
-			window = list_entry_next(window, list);
+			window = list_next_entry(window, list);
 			end_offset = window->offset +
 				(window->nr_pages << PAGE_SHIFT);
 		}
@@ -1147,13 +1138,13 @@ static int _scif_rma_list_dma_copy_aligned(struct scif_copy_work *work,
 		(dst_window->nr_pages << PAGE_SHIFT);
 	while (remaining_len) {
 		if (src_offset == end_src_offset) {
-			src_window = list_entry_next(src_window, list);
+			src_window = list_next_entry(src_window, list);
 			end_src_offset = src_window->offset +
 				(src_window->nr_pages << PAGE_SHIFT);
 			scif_init_window_iter(src_window, &src_win_iter);
 		}
 		if (dst_offset == end_dst_offset) {
-			dst_window = list_entry_next(dst_window, list);
+			dst_window = list_next_entry(dst_window, list);
 			end_dst_offset = dst_window->offset +
 				(dst_window->nr_pages << PAGE_SHIFT);
 			scif_init_window_iter(dst_window, &dst_win_iter);
@@ -1314,13 +1305,13 @@ static int scif_rma_list_dma_copy_aligned(struct scif_copy_work *work,
 	remaining_len -= tail_len;
 	while (remaining_len) {
 		if (src_offset == end_src_offset) {
-			src_window = list_entry_next(src_window, list);
+			src_window = list_next_entry(src_window, list);
 			end_src_offset = src_window->offset +
 				(src_window->nr_pages << PAGE_SHIFT);
 			scif_init_window_iter(src_window, &src_win_iter);
 		}
 		if (dst_offset == end_dst_offset) {
-			dst_window = list_entry_next(dst_window, list);
+			dst_window = list_next_entry(dst_window, list);
 			end_dst_offset = dst_window->offset +
 				(dst_window->nr_pages << PAGE_SHIFT);
 			scif_init_window_iter(dst_window, &dst_win_iter);
@@ -1405,9 +1396,9 @@ static int scif_rma_list_dma_copy_aligned(struct scif_copy_work *work,
 	if (remaining_len) {
 		loop_len = remaining_len;
 		if (src_offset == end_src_offset)
-			src_window = list_entry_next(src_window, list);
+			src_window = list_next_entry(src_window, list);
 		if (dst_offset == end_dst_offset)
-			dst_window = list_entry_next(dst_window, list);
+			dst_window = list_next_entry(dst_window, list);
 
 		src_dma_addr = __scif_off_to_dma_addr(src_window, src_offset);
 		dst_dma_addr = __scif_off_to_dma_addr(dst_window, dst_offset);
@@ -1550,12 +1541,12 @@ static int scif_rma_list_cpu_copy(struct scif_copy_work *work)
 			end_dst_offset = dst_window->offset +
 				(dst_window->nr_pages << PAGE_SHIFT);
 			if (src_offset == end_src_offset) {
-				src_window = list_entry_next(src_window, list);
+				src_window = list_next_entry(src_window, list);
 				scif_init_window_iter(src_window,
 						      &src_win_iter);
 			}
 			if (dst_offset == end_dst_offset) {
-				dst_window = list_entry_next(dst_window, list);
+				dst_window = list_next_entry(dst_window, list);
 				scif_init_window_iter(dst_window,
 						      &dst_win_iter);
 			}
@@ -1730,7 +1721,7 @@ static int scif_rma_copy(scif_epd_t epd, off_t loffset, unsigned long addr,
 		mutex_lock(&ep->rma_info.mmn_lock);
 		mmn = scif_find_mmu_notifier(current->mm, &ep->rma_info);
 		if (!mmn)
-			scif_add_mmu_notifier(current->mm, ep);
+			mmn = scif_add_mmu_notifier(current->mm, ep);
 		mutex_unlock(&ep->rma_info.mmn_lock);
 		if (IS_ERR(mmn)) {
 			scif_put_peer_dev(spdev);
diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c
index 8310b4d..6a451bd 100644
--- a/drivers/misc/mic/scif/scif_rma.c
+++ b/drivers/misc/mic/scif/scif_rma.c
@@ -1511,7 +1511,7 @@ off_t scif_register_pinned_pages(scif_epd_t epd,
 	if ((map_flags & SCIF_MAP_FIXED) &&
 	    ((ALIGN(offset, PAGE_SIZE) != offset) ||
 	    (offset < 0) ||
-	    (offset + (off_t)len < offset)))
+	    (len > LONG_MAX - offset)))
 		return -EINVAL;
 
 	might_sleep();
@@ -1614,7 +1614,7 @@ off_t scif_register(scif_epd_t epd, void *addr, size_t len, off_t offset,
 	if ((map_flags & SCIF_MAP_FIXED) &&
 	    ((ALIGN(offset, PAGE_SIZE) != offset) ||
 	    (offset < 0) ||
-	    (offset + (off_t)len < offset)))
+	    (len > LONG_MAX - offset)))
 		return -EINVAL;
 
 	/* Unsupported protection requested */
@@ -1732,7 +1732,8 @@ scif_unregister(scif_epd_t epd, off_t offset, size_t len)
 
 	/* Offset is not page aligned or offset+len wraps around */
 	if ((ALIGN(offset, PAGE_SIZE) != offset) ||
-	    (offset + (off_t)len < offset))
+	    (offset < 0) ||
+	    (len > LONG_MAX - offset))
 		return -EINVAL;
 
 	err = scif_verify_epd(ep);
diff --git a/drivers/misc/mic/vop/Makefile b/drivers/misc/mic/vop/Makefile
new file mode 100644
index 0000000..78819c8
--- /dev/null
+++ b/drivers/misc/mic/vop/Makefile
@@ -0,0 +1,9 @@
+#
+# Makefile - Intel MIC Linux driver.
+# Copyright(c) 2016, Intel Corporation.
+#
+obj-m := vop.o
+
+vop-objs += vop_main.o
+vop-objs += vop_debugfs.o
+vop-objs += vop_vringh.o
diff --git a/drivers/misc/mic/vop/vop_debugfs.c b/drivers/misc/mic/vop/vop_debugfs.c
new file mode 100644
index 0000000..ab43884
--- /dev/null
+++ b/drivers/misc/mic/vop/vop_debugfs.c
@@ -0,0 +1,232 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2016 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel Virtio Over PCIe (VOP) driver.
+ *
+ */
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#include "vop_main.h"
+
+static int vop_dp_show(struct seq_file *s, void *pos)
+{
+	struct mic_device_desc *d;
+	struct mic_device_ctrl *dc;
+	struct mic_vqconfig *vqconfig;
+	__u32 *features;
+	__u8 *config;
+	struct vop_info *vi = s->private;
+	struct vop_device *vpdev = vi->vpdev;
+	struct mic_bootparam *bootparam = vpdev->hw_ops->get_dp(vpdev);
+	int j, k;
+
+	seq_printf(s, "Bootparam: magic 0x%x\n",
+		   bootparam->magic);
+	seq_printf(s, "Bootparam: h2c_config_db %d\n",
+		   bootparam->h2c_config_db);
+	seq_printf(s, "Bootparam: node_id %d\n",
+		   bootparam->node_id);
+	seq_printf(s, "Bootparam: c2h_scif_db %d\n",
+		   bootparam->c2h_scif_db);
+	seq_printf(s, "Bootparam: h2c_scif_db %d\n",
+		   bootparam->h2c_scif_db);
+	seq_printf(s, "Bootparam: scif_host_dma_addr 0x%llx\n",
+		   bootparam->scif_host_dma_addr);
+	seq_printf(s, "Bootparam: scif_card_dma_addr 0x%llx\n",
+		   bootparam->scif_card_dma_addr);
+
+	for (j = sizeof(*bootparam);
+		j < MIC_DP_SIZE; j += mic_total_desc_size(d)) {
+		d = (void *)bootparam + j;
+		dc = (void *)d + mic_aligned_desc_size(d);
+
+		/* end of list */
+		if (d->type == 0)
+			break;
+
+		if (d->type == -1)
+			continue;
+
+		seq_printf(s, "Type %d ", d->type);
+		seq_printf(s, "Num VQ %d ", d->num_vq);
+		seq_printf(s, "Feature Len %d\n", d->feature_len);
+		seq_printf(s, "Config Len %d ", d->config_len);
+		seq_printf(s, "Shutdown Status %d\n", d->status);
+
+		for (k = 0; k < d->num_vq; k++) {
+			vqconfig = mic_vq_config(d) + k;
+			seq_printf(s, "vqconfig[%d]: ", k);
+			seq_printf(s, "address 0x%llx ",
+				   vqconfig->address);
+			seq_printf(s, "num %d ", vqconfig->num);
+			seq_printf(s, "used address 0x%llx\n",
+				   vqconfig->used_address);
+		}
+
+		features = (__u32 *)mic_vq_features(d);
+		seq_printf(s, "Features: Host 0x%x ", features[0]);
+		seq_printf(s, "Guest 0x%x\n", features[1]);
+
+		config = mic_vq_configspace(d);
+		for (k = 0; k < d->config_len; k++)
+			seq_printf(s, "config[%d]=%d\n", k, config[k]);
+
+		seq_puts(s, "Device control:\n");
+		seq_printf(s, "Config Change %d ", dc->config_change);
+		seq_printf(s, "Vdev reset %d\n", dc->vdev_reset);
+		seq_printf(s, "Guest Ack %d ", dc->guest_ack);
+		seq_printf(s, "Host ack %d\n", dc->host_ack);
+		seq_printf(s, "Used address updated %d ",
+			   dc->used_address_updated);
+		seq_printf(s, "Vdev 0x%llx\n", dc->vdev);
+		seq_printf(s, "c2h doorbell %d ", dc->c2h_vdev_db);
+		seq_printf(s, "h2c doorbell %d\n", dc->h2c_vdev_db);
+	}
+	schedule_work(&vi->hotplug_work);
+	return 0;
+}
+
+static int vop_dp_debug_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, vop_dp_show, inode->i_private);
+}
+
+static int vop_dp_debug_release(struct inode *inode, struct file *file)
+{
+	return single_release(inode, file);
+}
+
+static const struct file_operations dp_ops = {
+	.owner   = THIS_MODULE,
+	.open    = vop_dp_debug_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = vop_dp_debug_release
+};
+
+static int vop_vdev_info_show(struct seq_file *s, void *unused)
+{
+	struct vop_info *vi = s->private;
+	struct list_head *pos, *tmp;
+	struct vop_vdev *vdev;
+	int i, j;
+
+	mutex_lock(&vi->vop_mutex);
+	list_for_each_safe(pos, tmp, &vi->vdev_list) {
+		vdev = list_entry(pos, struct vop_vdev, list);
+		seq_printf(s, "VDEV type %d state %s in %ld out %ld in_dma %ld out_dma %ld\n",
+			   vdev->virtio_id,
+			   vop_vdevup(vdev) ? "UP" : "DOWN",
+			   vdev->in_bytes,
+			   vdev->out_bytes,
+			   vdev->in_bytes_dma,
+			   vdev->out_bytes_dma);
+		for (i = 0; i < MIC_MAX_VRINGS; i++) {
+			struct vring_desc *desc;
+			struct vring_avail *avail;
+			struct vring_used *used;
+			struct vop_vringh *vvr = &vdev->vvr[i];
+			struct vringh *vrh = &vvr->vrh;
+			int num = vrh->vring.num;
+
+			if (!num)
+				continue;
+			desc = vrh->vring.desc;
+			seq_printf(s, "vring i %d avail_idx %d",
+				   i, vvr->vring.info->avail_idx & (num - 1));
+			seq_printf(s, " vring i %d avail_idx %d\n",
+				   i, vvr->vring.info->avail_idx);
+			seq_printf(s, "vrh i %d weak_barriers %d",
+				   i, vrh->weak_barriers);
+			seq_printf(s, " last_avail_idx %d last_used_idx %d",
+				   vrh->last_avail_idx, vrh->last_used_idx);
+			seq_printf(s, " completed %d\n", vrh->completed);
+			for (j = 0; j < num; j++) {
+				seq_printf(s, "desc[%d] addr 0x%llx len %d",
+					   j, desc->addr, desc->len);
+				seq_printf(s, " flags 0x%x next %d\n",
+					   desc->flags, desc->next);
+				desc++;
+			}
+			avail = vrh->vring.avail;
+			seq_printf(s, "avail flags 0x%x idx %d\n",
+				   vringh16_to_cpu(vrh, avail->flags),
+				   vringh16_to_cpu(vrh,
+						   avail->idx) & (num - 1));
+			seq_printf(s, "avail flags 0x%x idx %d\n",
+				   vringh16_to_cpu(vrh, avail->flags),
+				   vringh16_to_cpu(vrh, avail->idx));
+			for (j = 0; j < num; j++)
+				seq_printf(s, "avail ring[%d] %d\n",
+					   j, avail->ring[j]);
+			used = vrh->vring.used;
+			seq_printf(s, "used flags 0x%x idx %d\n",
+				   vringh16_to_cpu(vrh, used->flags),
+				   vringh16_to_cpu(vrh, used->idx) & (num - 1));
+			seq_printf(s, "used flags 0x%x idx %d\n",
+				   vringh16_to_cpu(vrh, used->flags),
+				   vringh16_to_cpu(vrh, used->idx));
+			for (j = 0; j < num; j++)
+				seq_printf(s, "used ring[%d] id %d len %d\n",
+					   j, vringh32_to_cpu(vrh,
+							      used->ring[j].id),
+					   vringh32_to_cpu(vrh,
+							   used->ring[j].len));
+		}
+	}
+	mutex_unlock(&vi->vop_mutex);
+
+	return 0;
+}
+
+static int vop_vdev_info_debug_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, vop_vdev_info_show, inode->i_private);
+}
+
+static int vop_vdev_info_debug_release(struct inode *inode, struct file *file)
+{
+	return single_release(inode, file);
+}
+
+static const struct file_operations vdev_info_ops = {
+	.owner   = THIS_MODULE,
+	.open    = vop_vdev_info_debug_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = vop_vdev_info_debug_release
+};
+
+void vop_init_debugfs(struct vop_info *vi)
+{
+	char name[16];
+
+	snprintf(name, sizeof(name), "%s%d", KBUILD_MODNAME, vi->vpdev->dnode);
+	vi->dbg = debugfs_create_dir(name, NULL);
+	if (!vi->dbg) {
+		pr_err("can't create debugfs dir vop\n");
+		return;
+	}
+	debugfs_create_file("dp", 0444, vi->dbg, vi, &dp_ops);
+	debugfs_create_file("vdev_info", 0444, vi->dbg, vi, &vdev_info_ops);
+}
+
+void vop_exit_debugfs(struct vop_info *vi)
+{
+	debugfs_remove_recursive(vi->dbg);
+}
diff --git a/drivers/misc/mic/vop/vop_main.c b/drivers/misc/mic/vop/vop_main.c
new file mode 100644
index 0000000..1a2b67f3
--- /dev/null
+++ b/drivers/misc/mic/vop/vop_main.c
@@ -0,0 +1,755 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2016 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Adapted from:
+ *
+ * virtio for kvm on s390
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ *
+ *    Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
+ *
+ * Intel Virtio Over PCIe (VOP) driver.
+ *
+ */
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/dma-mapping.h>
+
+#include "vop_main.h"
+
+#define VOP_MAX_VRINGS 4
+
+/*
+ * _vop_vdev - Allocated per virtio device instance injected by the peer.
+ *
+ * @vdev: Virtio device
+ * @desc: Virtio device page descriptor
+ * @dc: Virtio device control
+ * @vpdev: VOP device which is the parent for this virtio device
+ * @vr: Buffer for accessing the VRING
+ * @used: Buffer for used
+ * @used_size: Size of the used buffer
+ * @reset_done: Track whether VOP reset is complete
+ * @virtio_cookie: Cookie returned upon requesting a interrupt
+ * @c2h_vdev_db: The doorbell used by the guest to interrupt the host
+ * @h2c_vdev_db: The doorbell used by the host to interrupt the guest
+ * @dnode: The destination node
+ */
+struct _vop_vdev {
+	struct virtio_device vdev;
+	struct mic_device_desc __iomem *desc;
+	struct mic_device_ctrl __iomem *dc;
+	struct vop_device *vpdev;
+	void __iomem *vr[VOP_MAX_VRINGS];
+	dma_addr_t used[VOP_MAX_VRINGS];
+	int used_size[VOP_MAX_VRINGS];
+	struct completion reset_done;
+	struct mic_irq *virtio_cookie;
+	int c2h_vdev_db;
+	int h2c_vdev_db;
+	int dnode;
+};
+
+#define to_vopvdev(vd) container_of(vd, struct _vop_vdev, vdev)
+
+#define _vop_aligned_desc_size(d) __mic_align(_vop_desc_size(d), 8)
+
+/* Helper API to obtain the parent of the virtio device */
+static inline struct device *_vop_dev(struct _vop_vdev *vdev)
+{
+	return vdev->vdev.dev.parent;
+}
+
+static inline unsigned _vop_desc_size(struct mic_device_desc __iomem *desc)
+{
+	return sizeof(*desc)
+		+ ioread8(&desc->num_vq) * sizeof(struct mic_vqconfig)
+		+ ioread8(&desc->feature_len) * 2
+		+ ioread8(&desc->config_len);
+}
+
+static inline struct mic_vqconfig __iomem *
+_vop_vq_config(struct mic_device_desc __iomem *desc)
+{
+	return (struct mic_vqconfig __iomem *)(desc + 1);
+}
+
+static inline u8 __iomem *
+_vop_vq_features(struct mic_device_desc __iomem *desc)
+{
+	return (u8 __iomem *)(_vop_vq_config(desc) + ioread8(&desc->num_vq));
+}
+
+static inline u8 __iomem *
+_vop_vq_configspace(struct mic_device_desc __iomem *desc)
+{
+	return _vop_vq_features(desc) + ioread8(&desc->feature_len) * 2;
+}
+
+static inline unsigned
+_vop_total_desc_size(struct mic_device_desc __iomem *desc)
+{
+	return _vop_aligned_desc_size(desc) + sizeof(struct mic_device_ctrl);
+}
+
+/* This gets the device's feature bits. */
+static u64 vop_get_features(struct virtio_device *vdev)
+{
+	unsigned int i, bits;
+	u32 features = 0;
+	struct mic_device_desc __iomem *desc = to_vopvdev(vdev)->desc;
+	u8 __iomem *in_features = _vop_vq_features(desc);
+	int feature_len = ioread8(&desc->feature_len);
+
+	bits = min_t(unsigned, feature_len, sizeof(vdev->features)) * 8;
+	for (i = 0; i < bits; i++)
+		if (ioread8(&in_features[i / 8]) & (BIT(i % 8)))
+			features |= BIT(i);
+
+	return features;
+}
+
+static int vop_finalize_features(struct virtio_device *vdev)
+{
+	unsigned int i, bits;
+	struct mic_device_desc __iomem *desc = to_vopvdev(vdev)->desc;
+	u8 feature_len = ioread8(&desc->feature_len);
+	/* Second half of bitmap is features we accept. */
+	u8 __iomem *out_features =
+		_vop_vq_features(desc) + feature_len;
+
+	/* Give virtio_ring a chance to accept features. */
+	vring_transport_features(vdev);
+
+	memset_io(out_features, 0, feature_len);
+	bits = min_t(unsigned, feature_len,
+		     sizeof(vdev->features)) * 8;
+	for (i = 0; i < bits; i++) {
+		if (__virtio_test_bit(vdev, i))
+			iowrite8(ioread8(&out_features[i / 8]) | (1 << (i % 8)),
+				 &out_features[i / 8]);
+	}
+	return 0;
+}
+
+/*
+ * Reading and writing elements in config space
+ */
+static void vop_get(struct virtio_device *vdev, unsigned int offset,
+		    void *buf, unsigned len)
+{
+	struct mic_device_desc __iomem *desc = to_vopvdev(vdev)->desc;
+
+	if (offset + len > ioread8(&desc->config_len))
+		return;
+	memcpy_fromio(buf, _vop_vq_configspace(desc) + offset, len);
+}
+
+static void vop_set(struct virtio_device *vdev, unsigned int offset,
+		    const void *buf, unsigned len)
+{
+	struct mic_device_desc __iomem *desc = to_vopvdev(vdev)->desc;
+
+	if (offset + len > ioread8(&desc->config_len))
+		return;
+	memcpy_toio(_vop_vq_configspace(desc) + offset, buf, len);
+}
+
+/*
+ * The operations to get and set the status word just access the status
+ * field of the device descriptor. set_status also interrupts the host
+ * to tell about status changes.
+ */
+static u8 vop_get_status(struct virtio_device *vdev)
+{
+	return ioread8(&to_vopvdev(vdev)->desc->status);
+}
+
+static void vop_set_status(struct virtio_device *dev, u8 status)
+{
+	struct _vop_vdev *vdev = to_vopvdev(dev);
+	struct vop_device *vpdev = vdev->vpdev;
+
+	if (!status)
+		return;
+	iowrite8(status, &vdev->desc->status);
+	vpdev->hw_ops->send_intr(vpdev, vdev->c2h_vdev_db);
+}
+
+/* Inform host on a virtio device reset and wait for ack from host */
+static void vop_reset_inform_host(struct virtio_device *dev)
+{
+	struct _vop_vdev *vdev = to_vopvdev(dev);
+	struct mic_device_ctrl __iomem *dc = vdev->dc;
+	struct vop_device *vpdev = vdev->vpdev;
+	int retry;
+
+	iowrite8(0, &dc->host_ack);
+	iowrite8(1, &dc->vdev_reset);
+	vpdev->hw_ops->send_intr(vpdev, vdev->c2h_vdev_db);
+
+	/* Wait till host completes all card accesses and acks the reset */
+	for (retry = 100; retry--;) {
+		if (ioread8(&dc->host_ack))
+			break;
+		msleep(100);
+	};
+
+	dev_dbg(_vop_dev(vdev), "%s: retry: %d\n", __func__, retry);
+
+	/* Reset status to 0 in case we timed out */
+	iowrite8(0, &vdev->desc->status);
+}
+
+static void vop_reset(struct virtio_device *dev)
+{
+	struct _vop_vdev *vdev = to_vopvdev(dev);
+
+	dev_dbg(_vop_dev(vdev), "%s: virtio id %d\n",
+		__func__, dev->id.device);
+
+	vop_reset_inform_host(dev);
+	complete_all(&vdev->reset_done);
+}
+
+/*
+ * The virtio_ring code calls this API when it wants to notify the Host.
+ */
+static bool vop_notify(struct virtqueue *vq)
+{
+	struct _vop_vdev *vdev = vq->priv;
+	struct vop_device *vpdev = vdev->vpdev;
+
+	vpdev->hw_ops->send_intr(vpdev, vdev->c2h_vdev_db);
+	return true;
+}
+
+static void vop_del_vq(struct virtqueue *vq, int n)
+{
+	struct _vop_vdev *vdev = to_vopvdev(vq->vdev);
+	struct vring *vr = (struct vring *)(vq + 1);
+	struct vop_device *vpdev = vdev->vpdev;
+
+	dma_unmap_single(&vpdev->dev, vdev->used[n],
+			 vdev->used_size[n], DMA_BIDIRECTIONAL);
+	free_pages((unsigned long)vr->used, get_order(vdev->used_size[n]));
+	vring_del_virtqueue(vq);
+	vpdev->hw_ops->iounmap(vpdev, vdev->vr[n]);
+	vdev->vr[n] = NULL;
+}
+
+static void vop_del_vqs(struct virtio_device *dev)
+{
+	struct _vop_vdev *vdev = to_vopvdev(dev);
+	struct virtqueue *vq, *n;
+	int idx = 0;
+
+	dev_dbg(_vop_dev(vdev), "%s\n", __func__);
+
+	list_for_each_entry_safe(vq, n, &dev->vqs, list)
+		vop_del_vq(vq, idx++);
+}
+
+/*
+ * This routine will assign vring's allocated in host/io memory. Code in
+ * virtio_ring.c however continues to access this io memory as if it were local
+ * memory without io accessors.
+ */
+static struct virtqueue *vop_find_vq(struct virtio_device *dev,
+				     unsigned index,
+				     void (*callback)(struct virtqueue *vq),
+				     const char *name)
+{
+	struct _vop_vdev *vdev = to_vopvdev(dev);
+	struct vop_device *vpdev = vdev->vpdev;
+	struct mic_vqconfig __iomem *vqconfig;
+	struct mic_vqconfig config;
+	struct virtqueue *vq;
+	void __iomem *va;
+	struct _mic_vring_info __iomem *info;
+	void *used;
+	int vr_size, _vr_size, err, magic;
+	struct vring *vr;
+	u8 type = ioread8(&vdev->desc->type);
+
+	if (index >= ioread8(&vdev->desc->num_vq))
+		return ERR_PTR(-ENOENT);
+
+	if (!name)
+		return ERR_PTR(-ENOENT);
+
+	/* First assign the vring's allocated in host memory */
+	vqconfig = _vop_vq_config(vdev->desc) + index;
+	memcpy_fromio(&config, vqconfig, sizeof(config));
+	_vr_size = vring_size(le16_to_cpu(config.num), MIC_VIRTIO_RING_ALIGN);
+	vr_size = PAGE_ALIGN(_vr_size + sizeof(struct _mic_vring_info));
+	va = vpdev->hw_ops->ioremap(vpdev, le64_to_cpu(config.address),
+			vr_size);
+	if (!va)
+		return ERR_PTR(-ENOMEM);
+	vdev->vr[index] = va;
+	memset_io(va, 0x0, _vr_size);
+	vq = vring_new_virtqueue(
+				index,
+				le16_to_cpu(config.num), MIC_VIRTIO_RING_ALIGN,
+				dev,
+				false,
+				(void __force *)va, vop_notify, callback, name);
+	if (!vq) {
+		err = -ENOMEM;
+		goto unmap;
+	}
+	info = va + _vr_size;
+	magic = ioread32(&info->magic);
+
+	if (WARN(magic != MIC_MAGIC + type + index, "magic mismatch")) {
+		err = -EIO;
+		goto unmap;
+	}
+
+	/* Allocate and reassign used ring now */
+	vdev->used_size[index] = PAGE_ALIGN(sizeof(__u16) * 3 +
+					     sizeof(struct vring_used_elem) *
+					     le16_to_cpu(config.num));
+	used = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
+					get_order(vdev->used_size[index]));
+	if (!used) {
+		err = -ENOMEM;
+		dev_err(_vop_dev(vdev), "%s %d err %d\n",
+			__func__, __LINE__, err);
+		goto del_vq;
+	}
+	vdev->used[index] = dma_map_single(&vpdev->dev, used,
+					    vdev->used_size[index],
+					    DMA_BIDIRECTIONAL);
+	if (dma_mapping_error(&vpdev->dev, vdev->used[index])) {
+		err = -ENOMEM;
+		dev_err(_vop_dev(vdev), "%s %d err %d\n",
+			__func__, __LINE__, err);
+		goto free_used;
+	}
+	writeq(vdev->used[index], &vqconfig->used_address);
+	/*
+	 * To reassign the used ring here we are directly accessing
+	 * struct vring_virtqueue which is a private data structure
+	 * in virtio_ring.c. At the minimum, a BUILD_BUG_ON() in
+	 * vring_new_virtqueue() would ensure that
+	 *  (&vq->vring == (struct vring *) (&vq->vq + 1));
+	 */
+	vr = (struct vring *)(vq + 1);
+	vr->used = used;
+
+	vq->priv = vdev;
+	return vq;
+free_used:
+	free_pages((unsigned long)used,
+		   get_order(vdev->used_size[index]));
+del_vq:
+	vring_del_virtqueue(vq);
+unmap:
+	vpdev->hw_ops->iounmap(vpdev, vdev->vr[index]);
+	return ERR_PTR(err);
+}
+
+static int vop_find_vqs(struct virtio_device *dev, unsigned nvqs,
+			struct virtqueue *vqs[],
+			vq_callback_t *callbacks[],
+			const char * const names[])
+{
+	struct _vop_vdev *vdev = to_vopvdev(dev);
+	struct vop_device *vpdev = vdev->vpdev;
+	struct mic_device_ctrl __iomem *dc = vdev->dc;
+	int i, err, retry;
+
+	/* We must have this many virtqueues. */
+	if (nvqs > ioread8(&vdev->desc->num_vq))
+		return -ENOENT;
+
+	for (i = 0; i < nvqs; ++i) {
+		dev_dbg(_vop_dev(vdev), "%s: %d: %s\n",
+			__func__, i, names[i]);
+		vqs[i] = vop_find_vq(dev, i, callbacks[i], names[i]);
+		if (IS_ERR(vqs[i])) {
+			err = PTR_ERR(vqs[i]);
+			goto error;
+		}
+	}
+
+	iowrite8(1, &dc->used_address_updated);
+	/*
+	 * Send an interrupt to the host to inform it that used
+	 * rings have been re-assigned.
+	 */
+	vpdev->hw_ops->send_intr(vpdev, vdev->c2h_vdev_db);
+	for (retry = 100; --retry;) {
+		if (!ioread8(&dc->used_address_updated))
+			break;
+		msleep(100);
+	};
+
+	dev_dbg(_vop_dev(vdev), "%s: retry: %d\n", __func__, retry);
+	if (!retry) {
+		err = -ENODEV;
+		goto error;
+	}
+
+	return 0;
+error:
+	vop_del_vqs(dev);
+	return err;
+}
+
+/*
+ * The config ops structure as defined by virtio config
+ */
+static struct virtio_config_ops vop_vq_config_ops = {
+	.get_features = vop_get_features,
+	.finalize_features = vop_finalize_features,
+	.get = vop_get,
+	.set = vop_set,
+	.get_status = vop_get_status,
+	.set_status = vop_set_status,
+	.reset = vop_reset,
+	.find_vqs = vop_find_vqs,
+	.del_vqs = vop_del_vqs,
+};
+
+static irqreturn_t vop_virtio_intr_handler(int irq, void *data)
+{
+	struct _vop_vdev *vdev = data;
+	struct vop_device *vpdev = vdev->vpdev;
+	struct virtqueue *vq;
+
+	vpdev->hw_ops->ack_interrupt(vpdev, vdev->h2c_vdev_db);
+	list_for_each_entry(vq, &vdev->vdev.vqs, list)
+		vring_interrupt(0, vq);
+
+	return IRQ_HANDLED;
+}
+
+static void vop_virtio_release_dev(struct device *_d)
+{
+	/*
+	 * No need for a release method similar to virtio PCI.
+	 * Provide an empty one to avoid getting a warning from core.
+	 */
+}
+
+/*
+ * adds a new device and register it with virtio
+ * appropriate drivers are loaded by the device model
+ */
+static int _vop_add_device(struct mic_device_desc __iomem *d,
+			   unsigned int offset, struct vop_device *vpdev,
+			   int dnode)
+{
+	struct _vop_vdev *vdev;
+	int ret;
+	u8 type = ioread8(&d->type);
+
+	vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
+	if (!vdev)
+		return -ENOMEM;
+
+	vdev->vpdev = vpdev;
+	vdev->vdev.dev.parent = &vpdev->dev;
+	vdev->vdev.dev.release = vop_virtio_release_dev;
+	vdev->vdev.id.device = type;
+	vdev->vdev.config = &vop_vq_config_ops;
+	vdev->desc = d;
+	vdev->dc = (void __iomem *)d + _vop_aligned_desc_size(d);
+	vdev->dnode = dnode;
+	vdev->vdev.priv = (void *)(u64)dnode;
+	init_completion(&vdev->reset_done);
+
+	vdev->h2c_vdev_db = vpdev->hw_ops->next_db(vpdev);
+	vdev->virtio_cookie = vpdev->hw_ops->request_irq(vpdev,
+			vop_virtio_intr_handler, "virtio intr",
+			vdev, vdev->h2c_vdev_db);
+	if (IS_ERR(vdev->virtio_cookie)) {
+		ret = PTR_ERR(vdev->virtio_cookie);
+		goto kfree;
+	}
+	iowrite8((u8)vdev->h2c_vdev_db, &vdev->dc->h2c_vdev_db);
+	vdev->c2h_vdev_db = ioread8(&vdev->dc->c2h_vdev_db);
+
+	ret = register_virtio_device(&vdev->vdev);
+	if (ret) {
+		dev_err(_vop_dev(vdev),
+			"Failed to register vop device %u type %u\n",
+			offset, type);
+		goto free_irq;
+	}
+	writeq((u64)vdev, &vdev->dc->vdev);
+	dev_dbg(_vop_dev(vdev), "%s: registered vop device %u type %u vdev %p\n",
+		__func__, offset, type, vdev);
+
+	return 0;
+
+free_irq:
+	vpdev->hw_ops->free_irq(vpdev, vdev->virtio_cookie, vdev);
+kfree:
+	kfree(vdev);
+	return ret;
+}
+
+/*
+ * match for a vop device with a specific desc pointer
+ */
+static int vop_match_desc(struct device *dev, void *data)
+{
+	struct virtio_device *_dev = dev_to_virtio(dev);
+	struct _vop_vdev *vdev = to_vopvdev(_dev);
+
+	return vdev->desc == (void __iomem *)data;
+}
+
+static void _vop_handle_config_change(struct mic_device_desc __iomem *d,
+				      unsigned int offset,
+				      struct vop_device *vpdev)
+{
+	struct mic_device_ctrl __iomem *dc
+		= (void __iomem *)d + _vop_aligned_desc_size(d);
+	struct _vop_vdev *vdev = (struct _vop_vdev *)readq(&dc->vdev);
+
+	if (ioread8(&dc->config_change) != MIC_VIRTIO_PARAM_CONFIG_CHANGED)
+		return;
+
+	dev_dbg(&vpdev->dev, "%s %d\n", __func__, __LINE__);
+	virtio_config_changed(&vdev->vdev);
+	iowrite8(1, &dc->guest_ack);
+}
+
+/*
+ * removes a virtio device if a hot remove event has been
+ * requested by the host.
+ */
+static int _vop_remove_device(struct mic_device_desc __iomem *d,
+			      unsigned int offset, struct vop_device *vpdev)
+{
+	struct mic_device_ctrl __iomem *dc
+		= (void __iomem *)d + _vop_aligned_desc_size(d);
+	struct _vop_vdev *vdev = (struct _vop_vdev *)readq(&dc->vdev);
+	u8 status;
+	int ret = -1;
+
+	if (ioread8(&dc->config_change) == MIC_VIRTIO_PARAM_DEV_REMOVE) {
+		dev_dbg(&vpdev->dev,
+			"%s %d config_change %d type %d vdev %p\n",
+			__func__, __LINE__,
+			ioread8(&dc->config_change), ioread8(&d->type), vdev);
+		status = ioread8(&d->status);
+		reinit_completion(&vdev->reset_done);
+		unregister_virtio_device(&vdev->vdev);
+		vpdev->hw_ops->free_irq(vpdev, vdev->virtio_cookie, vdev);
+		iowrite8(-1, &dc->h2c_vdev_db);
+		if (status & VIRTIO_CONFIG_S_DRIVER_OK)
+			wait_for_completion(&vdev->reset_done);
+		kfree(vdev);
+		iowrite8(1, &dc->guest_ack);
+		dev_dbg(&vpdev->dev, "%s %d guest_ack %d\n",
+			__func__, __LINE__, ioread8(&dc->guest_ack));
+		iowrite8(-1, &d->type);
+		ret = 0;
+	}
+	return ret;
+}
+
+#define REMOVE_DEVICES true
+
+static void _vop_scan_devices(void __iomem *dp, struct vop_device *vpdev,
+			      bool remove, int dnode)
+{
+	s8 type;
+	unsigned int i;
+	struct mic_device_desc __iomem *d;
+	struct mic_device_ctrl __iomem *dc;
+	struct device *dev;
+	int ret;
+
+	for (i = sizeof(struct mic_bootparam);
+			i < MIC_DP_SIZE; i += _vop_total_desc_size(d)) {
+		d = dp + i;
+		dc = (void __iomem *)d + _vop_aligned_desc_size(d);
+		/*
+		 * This read barrier is paired with the corresponding write
+		 * barrier on the host which is inserted before adding or
+		 * removing a virtio device descriptor, by updating the type.
+		 */
+		rmb();
+		type = ioread8(&d->type);
+
+		/* end of list */
+		if (type == 0)
+			break;
+
+		if (type == -1)
+			continue;
+
+		/* device already exists */
+		dev = device_find_child(&vpdev->dev, (void __force *)d,
+					vop_match_desc);
+		if (dev) {
+			if (remove)
+				iowrite8(MIC_VIRTIO_PARAM_DEV_REMOVE,
+					 &dc->config_change);
+			put_device(dev);
+			_vop_handle_config_change(d, i, vpdev);
+			ret = _vop_remove_device(d, i, vpdev);
+			if (remove) {
+				iowrite8(0, &dc->config_change);
+				iowrite8(0, &dc->guest_ack);
+			}
+			continue;
+		}
+
+		/* new device */
+		dev_dbg(&vpdev->dev, "%s %d Adding new virtio device %p\n",
+			__func__, __LINE__, d);
+		if (!remove)
+			_vop_add_device(d, i, vpdev, dnode);
+	}
+}
+
+static void vop_scan_devices(struct vop_info *vi,
+			     struct vop_device *vpdev, bool remove)
+{
+	void __iomem *dp = vpdev->hw_ops->get_remote_dp(vpdev);
+
+	if (!dp)
+		return;
+	mutex_lock(&vi->vop_mutex);
+	_vop_scan_devices(dp, vpdev, remove, vpdev->dnode);
+	mutex_unlock(&vi->vop_mutex);
+}
+
+/*
+ * vop_hotplug_device tries to find changes in the device page.
+ */
+static void vop_hotplug_devices(struct work_struct *work)
+{
+	struct vop_info *vi = container_of(work, struct vop_info,
+					     hotplug_work);
+
+	vop_scan_devices(vi, vi->vpdev, !REMOVE_DEVICES);
+}
+
+/*
+ * Interrupt handler for hot plug/config changes etc.
+ */
+static irqreturn_t vop_extint_handler(int irq, void *data)
+{
+	struct vop_info *vi = data;
+	struct mic_bootparam __iomem *bp;
+	struct vop_device *vpdev = vi->vpdev;
+
+	bp = vpdev->hw_ops->get_remote_dp(vpdev);
+	dev_dbg(&vpdev->dev, "%s %d hotplug work\n",
+		__func__, __LINE__);
+	vpdev->hw_ops->ack_interrupt(vpdev, ioread8(&bp->h2c_config_db));
+	schedule_work(&vi->hotplug_work);
+	return IRQ_HANDLED;
+}
+
+static int vop_driver_probe(struct vop_device *vpdev)
+{
+	struct vop_info *vi;
+	int rc;
+
+	vi = kzalloc(sizeof(*vi), GFP_KERNEL);
+	if (!vi) {
+		rc = -ENOMEM;
+		goto exit;
+	}
+	dev_set_drvdata(&vpdev->dev, vi);
+	vi->vpdev = vpdev;
+
+	mutex_init(&vi->vop_mutex);
+	INIT_WORK(&vi->hotplug_work, vop_hotplug_devices);
+	if (vpdev->dnode) {
+		rc = vop_host_init(vi);
+		if (rc < 0)
+			goto free;
+	} else {
+		struct mic_bootparam __iomem *bootparam;
+
+		vop_scan_devices(vi, vpdev, !REMOVE_DEVICES);
+
+		vi->h2c_config_db = vpdev->hw_ops->next_db(vpdev);
+		vi->cookie = vpdev->hw_ops->request_irq(vpdev,
+							vop_extint_handler,
+							"virtio_config_intr",
+							vi, vi->h2c_config_db);
+		if (IS_ERR(vi->cookie)) {
+			rc = PTR_ERR(vi->cookie);
+			goto free;
+		}
+		bootparam = vpdev->hw_ops->get_remote_dp(vpdev);
+		iowrite8(vi->h2c_config_db, &bootparam->h2c_config_db);
+	}
+	vop_init_debugfs(vi);
+	return 0;
+free:
+	kfree(vi);
+exit:
+	return rc;
+}
+
+static void vop_driver_remove(struct vop_device *vpdev)
+{
+	struct vop_info *vi = dev_get_drvdata(&vpdev->dev);
+
+	if (vpdev->dnode) {
+		vop_host_uninit(vi);
+	} else {
+		struct mic_bootparam __iomem *bootparam =
+			vpdev->hw_ops->get_remote_dp(vpdev);
+		if (bootparam)
+			iowrite8(-1, &bootparam->h2c_config_db);
+		vpdev->hw_ops->free_irq(vpdev, vi->cookie, vi);
+		flush_work(&vi->hotplug_work);
+		vop_scan_devices(vi, vpdev, REMOVE_DEVICES);
+	}
+	vop_exit_debugfs(vi);
+	kfree(vi);
+}
+
+static struct vop_device_id id_table[] = {
+	{ VOP_DEV_TRNSP, VOP_DEV_ANY_ID },
+	{ 0 },
+};
+
+static struct vop_driver vop_driver = {
+	.driver.name =	KBUILD_MODNAME,
+	.driver.owner =	THIS_MODULE,
+	.id_table = id_table,
+	.probe = vop_driver_probe,
+	.remove = vop_driver_remove,
+};
+
+module_vop_driver(vop_driver);
+
+MODULE_DEVICE_TABLE(mbus, id_table);
+MODULE_AUTHOR("Intel Corporation");
+MODULE_DESCRIPTION("Intel(R) Virtio Over PCIe (VOP) driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/misc/mic/host/mic_virtio.h b/drivers/misc/mic/vop/vop_main.h
index a80631f..ba47ec7 100644
--- a/drivers/misc/mic/host/mic_virtio.h
+++ b/drivers/misc/mic/vop/vop_main.h
@@ -1,7 +1,7 @@
 /*
  * Intel MIC Platform Software Stack (MPSS)
  *
- * Copyright(c) 2013 Intel Corporation.
+ * Copyright(c) 2016 Intel Corporation.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, version 2, as
@@ -15,14 +15,21 @@
  * The full GNU General Public License is included in this distribution in
  * the file called "COPYING".
  *
- * Intel MIC Host driver.
+ * Intel Virtio Over PCIe (VOP) driver.
  *
  */
-#ifndef MIC_VIRTIO_H
-#define MIC_VIRTIO_H
+#ifndef _VOP_MAIN_H_
+#define _VOP_MAIN_H_
 
+#include <linux/vringh.h>
 #include <linux/virtio_config.h>
-#include <linux/mic_ioctl.h>
+#include <linux/virtio.h>
+#include <linux/miscdevice.h>
+
+#include <linux/mic_common.h>
+#include "../common/mic_dev.h"
+
+#include "../bus/vop_bus.h"
 
 /*
  * Note on endianness.
@@ -39,38 +46,68 @@
  *    in guest endianness.
  */
 
+/*
+ * vop_info - Allocated per invocation of VOP probe
+ *
+ * @vpdev: VOP device
+ * @hotplug_work: Handle virtio device creation, deletion and configuration
+ * @cookie: Cookie received upon requesting a virtio configuration interrupt
+ * @h2c_config_db: The doorbell used by the peer to indicate a config change
+ * @vdev_list: List of "active" virtio devices injected in the peer node
+ * @vop_mutex: Synchronize access to the device page as well as serialize
+ *             creation/deletion of virtio devices on the peer node
+ * @dp: Peer device page information
+ * @dbg: Debugfs entry
+ * @dma_ch: The DMA channel used by this transport for data transfers.
+ * @name: Name for this transport used in misc device creation.
+ * @miscdev: The misc device registered.
+ */
+struct vop_info {
+	struct vop_device *vpdev;
+	struct work_struct hotplug_work;
+	struct mic_irq *cookie;
+	int h2c_config_db;
+	struct list_head vdev_list;
+	struct mutex vop_mutex;
+	void __iomem *dp;
+	struct dentry *dbg;
+	struct dma_chan *dma_ch;
+	char name[16];
+	struct miscdevice miscdev;
+};
+
 /**
- * struct mic_vringh - Virtio ring host information.
+ * struct vop_vringh - Virtio ring host information.
  *
- * @vring: The MIC vring used for setting up user space mappings.
+ * @vring: The VOP vring used for setting up user space mappings.
  * @vrh: The host VRINGH used for accessing the card vrings.
  * @riov: The VRINGH read kernel IOV.
  * @wiov: The VRINGH write kernel IOV.
+ * @head: The VRINGH head index address passed to vringh_getdesc_kern(..).
  * @vr_mutex: Mutex for synchronizing access to the VRING.
  * @buf: Temporary kernel buffer used to copy in/out data
  * from/to the card via DMA.
  * @buf_da: dma address of buf.
- * @mvdev: Back pointer to MIC virtio device for vringh_notify(..).
- * @head: The VRINGH head index address passed to vringh_getdesc_kern(..).
+ * @vdev: Back pointer to VOP virtio device for vringh_notify(..).
  */
-struct mic_vringh {
+struct vop_vringh {
 	struct mic_vring vring;
 	struct vringh vrh;
 	struct vringh_kiov riov;
 	struct vringh_kiov wiov;
+	u16 head;
 	struct mutex vr_mutex;
 	void *buf;
 	dma_addr_t buf_da;
-	struct mic_vdev *mvdev;
-	u16 head;
+	struct vop_vdev *vdev;
 };
 
 /**
- * struct mic_vdev - Host information for a card Virtio device.
+ * struct vop_vdev - Host information for a card Virtio device.
  *
  * @virtio_id - Virtio device id.
  * @waitq - Waitqueue to allow ring3 apps to poll.
- * @mdev - Back pointer to host MIC device.
+ * @vpdev - pointer to VOP bus device.
  * @poll_wake - Used for waking up threads blocked in poll.
  * @out_bytes - Debug stats for number of bytes copied from host to card.
  * @in_bytes - Debug stats for number of bytes copied from card to host.
@@ -82,18 +119,23 @@ struct mic_vringh {
  * the transfer length did not have the required DMA alignment.
  * @tx_dst_unaligned - Debug stats for number of bytes copied where the
  * destination address on the card did not have the required DMA alignment.
- * @mvr - Store per VRING data structures.
+ * @vvr - Store per VRING data structures.
  * @virtio_bh_work - Work struct used to schedule virtio bottom half handling.
  * @dd - Virtio device descriptor.
  * @dc - Virtio device control fields.
  * @list - List of Virtio devices.
  * @virtio_db - The doorbell used by the card to interrupt the host.
  * @virtio_cookie - The cookie returned while requesting interrupts.
+ * @vi: Transport information.
+ * @vdev_mutex: Mutex synchronizing virtio device injection,
+ *              removal and data transfers.
+ * @destroy: Track if a virtio device is being destroyed.
+ * @deleted: The virtio device has been deleted.
  */
-struct mic_vdev {
+struct vop_vdev {
 	int virtio_id;
 	wait_queue_head_t waitq;
-	struct mic_device *mdev;
+	struct vop_device *vpdev;
 	int poll_wake;
 	unsigned long out_bytes;
 	unsigned long in_bytes;
@@ -101,55 +143,28 @@ struct mic_vdev {
 	unsigned long in_bytes_dma;
 	unsigned long tx_len_unaligned;
 	unsigned long tx_dst_unaligned;
-	struct mic_vringh mvr[MIC_MAX_VRINGS];
+	unsigned long rx_dst_unaligned;
+	struct vop_vringh vvr[MIC_MAX_VRINGS];
 	struct work_struct virtio_bh_work;
 	struct mic_device_desc *dd;
 	struct mic_device_ctrl *dc;
 	struct list_head list;
 	int virtio_db;
 	struct mic_irq *virtio_cookie;
+	struct vop_info *vi;
+	struct mutex vdev_mutex;
+	struct completion destroy;
+	bool deleted;
 };
 
-void mic_virtio_uninit(struct mic_device *mdev);
-int mic_virtio_add_device(struct mic_vdev *mvdev,
-			void __user *argp);
-void mic_virtio_del_device(struct mic_vdev *mvdev);
-int mic_virtio_config_change(struct mic_vdev *mvdev,
-			void __user *argp);
-int mic_virtio_copy_desc(struct mic_vdev *mvdev,
-	struct mic_copy_desc *request);
-void mic_virtio_reset_devices(struct mic_device *mdev);
-void mic_bh_handler(struct work_struct *work);
-
-/* Helper API to obtain the MIC PCIe device */
-static inline struct device *mic_dev(struct mic_vdev *mvdev)
-{
-	return &mvdev->mdev->pdev->dev;
-}
-
-/* Helper API to check if a virtio device is initialized */
-static inline int mic_vdev_inited(struct mic_vdev *mvdev)
-{
-	/* Device has not been created yet */
-	if (!mvdev->dd || !mvdev->dd->type) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -EINVAL);
-		return -EINVAL;
-	}
-
-	/* Device has been removed/deleted */
-	if (mvdev->dd->type == -1) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -ENODEV);
-		return -ENODEV;
-	}
-
-	return 0;
-}
-
 /* Helper API to check if a virtio device is running */
-static inline bool mic_vdevup(struct mic_vdev *mvdev)
+static inline bool vop_vdevup(struct vop_vdev *vdev)
 {
-	return !!mvdev->dd->status;
+	return !!vdev->dd->status;
 }
+
+void vop_init_debugfs(struct vop_info *vi);
+void vop_exit_debugfs(struct vop_info *vi);
+int vop_host_init(struct vop_info *vi);
+void vop_host_uninit(struct vop_info *vi);
 #endif
diff --git a/drivers/misc/mic/vop/vop_vringh.c b/drivers/misc/mic/vop/vop_vringh.c
new file mode 100644
index 0000000..e94c7fb
--- /dev/null
+++ b/drivers/misc/mic/vop/vop_vringh.c
@@ -0,0 +1,1165 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2016 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel Virtio Over PCIe (VOP) driver.
+ *
+ */
+#include <linux/sched.h>
+#include <linux/poll.h>
+#include <linux/dma-mapping.h>
+
+#include <linux/mic_common.h>
+#include "../common/mic_dev.h"
+
+#include <linux/mic_ioctl.h>
+#include "vop_main.h"
+
+/* Helper API to obtain the VOP PCIe device */
+static inline struct device *vop_dev(struct vop_vdev *vdev)
+{
+	return vdev->vpdev->dev.parent;
+}
+
+/* Helper API to check if a virtio device is initialized */
+static inline int vop_vdev_inited(struct vop_vdev *vdev)
+{
+	if (!vdev)
+		return -EINVAL;
+	/* Device has not been created yet */
+	if (!vdev->dd || !vdev->dd->type) {
+		dev_err(vop_dev(vdev), "%s %d err %d\n",
+			__func__, __LINE__, -EINVAL);
+		return -EINVAL;
+	}
+	/* Device has been removed/deleted */
+	if (vdev->dd->type == -1) {
+		dev_dbg(vop_dev(vdev), "%s %d err %d\n",
+			__func__, __LINE__, -ENODEV);
+		return -ENODEV;
+	}
+	return 0;
+}
+
+static void _vop_notify(struct vringh *vrh)
+{
+	struct vop_vringh *vvrh = container_of(vrh, struct vop_vringh, vrh);
+	struct vop_vdev *vdev = vvrh->vdev;
+	struct vop_device *vpdev = vdev->vpdev;
+	s8 db = vdev->dc->h2c_vdev_db;
+
+	if (db != -1)
+		vpdev->hw_ops->send_intr(vpdev, db);
+}
+
+static void vop_virtio_init_post(struct vop_vdev *vdev)
+{
+	struct mic_vqconfig *vqconfig = mic_vq_config(vdev->dd);
+	struct vop_device *vpdev = vdev->vpdev;
+	int i, used_size;
+
+	for (i = 0; i < vdev->dd->num_vq; i++) {
+		used_size = PAGE_ALIGN(sizeof(u16) * 3 +
+				sizeof(struct vring_used_elem) *
+				le16_to_cpu(vqconfig->num));
+		if (!le64_to_cpu(vqconfig[i].used_address)) {
+			dev_warn(vop_dev(vdev), "used_address zero??\n");
+			continue;
+		}
+		vdev->vvr[i].vrh.vring.used =
+			(void __force *)vpdev->hw_ops->ioremap(
+			vpdev,
+			le64_to_cpu(vqconfig[i].used_address),
+			used_size);
+	}
+
+	vdev->dc->used_address_updated = 0;
+
+	dev_info(vop_dev(vdev), "%s: device type %d LINKUP\n",
+		 __func__, vdev->virtio_id);
+}
+
+static inline void vop_virtio_device_reset(struct vop_vdev *vdev)
+{
+	int i;
+
+	dev_dbg(vop_dev(vdev), "%s: status %d device type %d RESET\n",
+		__func__, vdev->dd->status, vdev->virtio_id);
+
+	for (i = 0; i < vdev->dd->num_vq; i++)
+		/*
+		 * Avoid lockdep false positive. The + 1 is for the vop
+		 * mutex which is held in the reset devices code path.
+		 */
+		mutex_lock_nested(&vdev->vvr[i].vr_mutex, i + 1);
+
+	/* 0 status means "reset" */
+	vdev->dd->status = 0;
+	vdev->dc->vdev_reset = 0;
+	vdev->dc->host_ack = 1;
+
+	for (i = 0; i < vdev->dd->num_vq; i++) {
+		struct vringh *vrh = &vdev->vvr[i].vrh;
+
+		vdev->vvr[i].vring.info->avail_idx = 0;
+		vrh->completed = 0;
+		vrh->last_avail_idx = 0;
+		vrh->last_used_idx = 0;
+	}
+
+	for (i = 0; i < vdev->dd->num_vq; i++)
+		mutex_unlock(&vdev->vvr[i].vr_mutex);
+}
+
+static void vop_virtio_reset_devices(struct vop_info *vi)
+{
+	struct list_head *pos, *tmp;
+	struct vop_vdev *vdev;
+
+	list_for_each_safe(pos, tmp, &vi->vdev_list) {
+		vdev = list_entry(pos, struct vop_vdev, list);
+		vop_virtio_device_reset(vdev);
+		vdev->poll_wake = 1;
+		wake_up(&vdev->waitq);
+	}
+}
+
+static void vop_bh_handler(struct work_struct *work)
+{
+	struct vop_vdev *vdev = container_of(work, struct vop_vdev,
+			virtio_bh_work);
+
+	if (vdev->dc->used_address_updated)
+		vop_virtio_init_post(vdev);
+
+	if (vdev->dc->vdev_reset)
+		vop_virtio_device_reset(vdev);
+
+	vdev->poll_wake = 1;
+	wake_up(&vdev->waitq);
+}
+
+static irqreturn_t _vop_virtio_intr_handler(int irq, void *data)
+{
+	struct vop_vdev *vdev = data;
+	struct vop_device *vpdev = vdev->vpdev;
+
+	vpdev->hw_ops->ack_interrupt(vpdev, vdev->virtio_db);
+	schedule_work(&vdev->virtio_bh_work);
+	return IRQ_HANDLED;
+}
+
+static int vop_virtio_config_change(struct vop_vdev *vdev, void *argp)
+{
+	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake);
+	int ret = 0, retry, i;
+	struct vop_device *vpdev = vdev->vpdev;
+	struct vop_info *vi = dev_get_drvdata(&vpdev->dev);
+	struct mic_bootparam *bootparam = vpdev->hw_ops->get_dp(vpdev);
+	s8 db = bootparam->h2c_config_db;
+
+	mutex_lock(&vi->vop_mutex);
+	for (i = 0; i < vdev->dd->num_vq; i++)
+		mutex_lock_nested(&vdev->vvr[i].vr_mutex, i + 1);
+
+	if (db == -1 || vdev->dd->type == -1) {
+		ret = -EIO;
+		goto exit;
+	}
+
+	memcpy(mic_vq_configspace(vdev->dd), argp, vdev->dd->config_len);
+	vdev->dc->config_change = MIC_VIRTIO_PARAM_CONFIG_CHANGED;
+	vpdev->hw_ops->send_intr(vpdev, db);
+
+	for (retry = 100; retry--;) {
+		ret = wait_event_timeout(wake, vdev->dc->guest_ack,
+					 msecs_to_jiffies(100));
+		if (ret)
+			break;
+	}
+
+	dev_dbg(vop_dev(vdev),
+		"%s %d retry: %d\n", __func__, __LINE__, retry);
+	vdev->dc->config_change = 0;
+	vdev->dc->guest_ack = 0;
+exit:
+	for (i = 0; i < vdev->dd->num_vq; i++)
+		mutex_unlock(&vdev->vvr[i].vr_mutex);
+	mutex_unlock(&vi->vop_mutex);
+	return ret;
+}
+
+static int vop_copy_dp_entry(struct vop_vdev *vdev,
+			     struct mic_device_desc *argp, __u8 *type,
+			     struct mic_device_desc **devpage)
+{
+	struct vop_device *vpdev = vdev->vpdev;
+	struct mic_device_desc *devp;
+	struct mic_vqconfig *vqconfig;
+	int ret = 0, i;
+	bool slot_found = false;
+
+	vqconfig = mic_vq_config(argp);
+	for (i = 0; i < argp->num_vq; i++) {
+		if (le16_to_cpu(vqconfig[i].num) > MIC_MAX_VRING_ENTRIES) {
+			ret =  -EINVAL;
+			dev_err(vop_dev(vdev), "%s %d err %d\n",
+				__func__, __LINE__, ret);
+			goto exit;
+		}
+	}
+
+	/* Find the first free device page entry */
+	for (i = sizeof(struct mic_bootparam);
+		i < MIC_DP_SIZE - mic_total_desc_size(argp);
+		i += mic_total_desc_size(devp)) {
+		devp = vpdev->hw_ops->get_dp(vpdev) + i;
+		if (devp->type == 0 || devp->type == -1) {
+			slot_found = true;
+			break;
+		}
+	}
+	if (!slot_found) {
+		ret =  -EINVAL;
+		dev_err(vop_dev(vdev), "%s %d err %d\n",
+			__func__, __LINE__, ret);
+		goto exit;
+	}
+	/*
+	 * Save off the type before doing the memcpy. Type will be set in the
+	 * end after completing all initialization for the new device.
+	 */
+	*type = argp->type;
+	argp->type = 0;
+	memcpy(devp, argp, mic_desc_size(argp));
+
+	*devpage = devp;
+exit:
+	return ret;
+}
+
+static void vop_init_device_ctrl(struct vop_vdev *vdev,
+				 struct mic_device_desc *devpage)
+{
+	struct mic_device_ctrl *dc;
+
+	dc = (void *)devpage + mic_aligned_desc_size(devpage);
+
+	dc->config_change = 0;
+	dc->guest_ack = 0;
+	dc->vdev_reset = 0;
+	dc->host_ack = 0;
+	dc->used_address_updated = 0;
+	dc->c2h_vdev_db = -1;
+	dc->h2c_vdev_db = -1;
+	vdev->dc = dc;
+}
+
+static int vop_virtio_add_device(struct vop_vdev *vdev,
+				 struct mic_device_desc *argp)
+{
+	struct vop_info *vi = vdev->vi;
+	struct vop_device *vpdev = vi->vpdev;
+	struct mic_device_desc *dd = NULL;
+	struct mic_vqconfig *vqconfig;
+	int vr_size, i, j, ret;
+	u8 type = 0;
+	s8 db = -1;
+	char irqname[16];
+	struct mic_bootparam *bootparam;
+	u16 num;
+	dma_addr_t vr_addr;
+
+	bootparam = vpdev->hw_ops->get_dp(vpdev);
+	init_waitqueue_head(&vdev->waitq);
+	INIT_LIST_HEAD(&vdev->list);
+	vdev->vpdev = vpdev;
+
+	ret = vop_copy_dp_entry(vdev, argp, &type, &dd);
+	if (ret) {
+		dev_err(vop_dev(vdev), "%s %d err %d\n",
+			__func__, __LINE__, ret);
+		kfree(vdev);
+		return ret;
+	}
+
+	vop_init_device_ctrl(vdev, dd);
+
+	vdev->dd = dd;
+	vdev->virtio_id = type;
+	vqconfig = mic_vq_config(dd);
+	INIT_WORK(&vdev->virtio_bh_work, vop_bh_handler);
+
+	for (i = 0; i < dd->num_vq; i++) {
+		struct vop_vringh *vvr = &vdev->vvr[i];
+		struct mic_vring *vr = &vdev->vvr[i].vring;
+
+		num = le16_to_cpu(vqconfig[i].num);
+		mutex_init(&vvr->vr_mutex);
+		vr_size = PAGE_ALIGN(vring_size(num, MIC_VIRTIO_RING_ALIGN) +
+			sizeof(struct _mic_vring_info));
+		vr->va = (void *)
+			__get_free_pages(GFP_KERNEL | __GFP_ZERO,
+					 get_order(vr_size));
+		if (!vr->va) {
+			ret = -ENOMEM;
+			dev_err(vop_dev(vdev), "%s %d err %d\n",
+				__func__, __LINE__, ret);
+			goto err;
+		}
+		vr->len = vr_size;
+		vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN);
+		vr->info->magic = cpu_to_le32(MIC_MAGIC + vdev->virtio_id + i);
+		vr_addr = dma_map_single(&vpdev->dev, vr->va, vr_size,
+					 DMA_BIDIRECTIONAL);
+		if (dma_mapping_error(&vpdev->dev, vr_addr)) {
+			free_pages((unsigned long)vr->va, get_order(vr_size));
+			ret = -ENOMEM;
+			dev_err(vop_dev(vdev), "%s %d err %d\n",
+				__func__, __LINE__, ret);
+			goto err;
+		}
+		vqconfig[i].address = cpu_to_le64(vr_addr);
+
+		vring_init(&vr->vr, num, vr->va, MIC_VIRTIO_RING_ALIGN);
+		ret = vringh_init_kern(&vvr->vrh,
+				       *(u32 *)mic_vq_features(vdev->dd),
+				       num, false, vr->vr.desc, vr->vr.avail,
+				       vr->vr.used);
+		if (ret) {
+			dev_err(vop_dev(vdev), "%s %d err %d\n",
+				__func__, __LINE__, ret);
+			goto err;
+		}
+		vringh_kiov_init(&vvr->riov, NULL, 0);
+		vringh_kiov_init(&vvr->wiov, NULL, 0);
+		vvr->head = USHRT_MAX;
+		vvr->vdev = vdev;
+		vvr->vrh.notify = _vop_notify;
+		dev_dbg(&vpdev->dev,
+			"%s %d index %d va %p info %p vr_size 0x%x\n",
+			__func__, __LINE__, i, vr->va, vr->info, vr_size);
+		vvr->buf = (void *)__get_free_pages(GFP_KERNEL,
+					get_order(VOP_INT_DMA_BUF_SIZE));
+		vvr->buf_da = dma_map_single(&vpdev->dev,
+					  vvr->buf, VOP_INT_DMA_BUF_SIZE,
+					  DMA_BIDIRECTIONAL);
+	}
+
+	snprintf(irqname, sizeof(irqname), "vop%dvirtio%d", vpdev->index,
+		 vdev->virtio_id);
+	vdev->virtio_db = vpdev->hw_ops->next_db(vpdev);
+	vdev->virtio_cookie = vpdev->hw_ops->request_irq(vpdev,
+			_vop_virtio_intr_handler, irqname, vdev,
+			vdev->virtio_db);
+	if (IS_ERR(vdev->virtio_cookie)) {
+		ret = PTR_ERR(vdev->virtio_cookie);
+		dev_dbg(&vpdev->dev, "request irq failed\n");
+		goto err;
+	}
+
+	vdev->dc->c2h_vdev_db = vdev->virtio_db;
+
+	/*
+	 * Order the type update with previous stores. This write barrier
+	 * is paired with the corresponding read barrier before the uncached
+	 * system memory read of the type, on the card while scanning the
+	 * device page.
+	 */
+	smp_wmb();
+	dd->type = type;
+	argp->type = type;
+
+	if (bootparam) {
+		db = bootparam->h2c_config_db;
+		if (db != -1)
+			vpdev->hw_ops->send_intr(vpdev, db);
+	}
+	dev_dbg(&vpdev->dev, "Added virtio id %d db %d\n", dd->type, db);
+	return 0;
+err:
+	vqconfig = mic_vq_config(dd);
+	for (j = 0; j < i; j++) {
+		struct vop_vringh *vvr = &vdev->vvr[j];
+
+		dma_unmap_single(&vpdev->dev, le64_to_cpu(vqconfig[j].address),
+				 vvr->vring.len, DMA_BIDIRECTIONAL);
+		free_pages((unsigned long)vvr->vring.va,
+			   get_order(vvr->vring.len));
+	}
+	return ret;
+}
+
+static void vop_dev_remove(struct vop_info *pvi, struct mic_device_ctrl *devp,
+			   struct vop_device *vpdev)
+{
+	struct mic_bootparam *bootparam = vpdev->hw_ops->get_dp(vpdev);
+	s8 db;
+	int ret, retry;
+	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake);
+
+	devp->config_change = MIC_VIRTIO_PARAM_DEV_REMOVE;
+	db = bootparam->h2c_config_db;
+	if (db != -1)
+		vpdev->hw_ops->send_intr(vpdev, db);
+	else
+		goto done;
+	for (retry = 15; retry--;) {
+		ret = wait_event_timeout(wake, devp->guest_ack,
+					 msecs_to_jiffies(1000));
+		if (ret)
+			break;
+	}
+done:
+	devp->config_change = 0;
+	devp->guest_ack = 0;
+}
+
+static void vop_virtio_del_device(struct vop_vdev *vdev)
+{
+	struct vop_info *vi = vdev->vi;
+	struct vop_device *vpdev = vdev->vpdev;
+	int i;
+	struct mic_vqconfig *vqconfig;
+	struct mic_bootparam *bootparam = vpdev->hw_ops->get_dp(vpdev);
+
+	if (!bootparam)
+		goto skip_hot_remove;
+	vop_dev_remove(vi, vdev->dc, vpdev);
+skip_hot_remove:
+	vpdev->hw_ops->free_irq(vpdev, vdev->virtio_cookie, vdev);
+	flush_work(&vdev->virtio_bh_work);
+	vqconfig = mic_vq_config(vdev->dd);
+	for (i = 0; i < vdev->dd->num_vq; i++) {
+		struct vop_vringh *vvr = &vdev->vvr[i];
+
+		dma_unmap_single(&vpdev->dev,
+				 vvr->buf_da, VOP_INT_DMA_BUF_SIZE,
+				 DMA_BIDIRECTIONAL);
+		free_pages((unsigned long)vvr->buf,
+			   get_order(VOP_INT_DMA_BUF_SIZE));
+		vringh_kiov_cleanup(&vvr->riov);
+		vringh_kiov_cleanup(&vvr->wiov);
+		dma_unmap_single(&vpdev->dev, le64_to_cpu(vqconfig[i].address),
+				 vvr->vring.len, DMA_BIDIRECTIONAL);
+		free_pages((unsigned long)vvr->vring.va,
+			   get_order(vvr->vring.len));
+	}
+	/*
+	 * Order the type update with previous stores. This write barrier
+	 * is paired with the corresponding read barrier before the uncached
+	 * system memory read of the type, on the card while scanning the
+	 * device page.
+	 */
+	smp_wmb();
+	vdev->dd->type = -1;
+}
+
+/*
+ * vop_sync_dma - Wrapper for synchronous DMAs.
+ *
+ * @dev - The address of the pointer to the device instance used
+ * for DMA registration.
+ * @dst - destination DMA address.
+ * @src - source DMA address.
+ * @len - size of the transfer.
+ *
+ * Return DMA_SUCCESS on success
+ */
+static int vop_sync_dma(struct vop_vdev *vdev, dma_addr_t dst, dma_addr_t src,
+			size_t len)
+{
+	int err = 0;
+	struct dma_device *ddev;
+	struct dma_async_tx_descriptor *tx;
+	struct vop_info *vi = dev_get_drvdata(&vdev->vpdev->dev);
+	struct dma_chan *vop_ch = vi->dma_ch;
+
+	if (!vop_ch) {
+		err = -EBUSY;
+		goto error;
+	}
+	ddev = vop_ch->device;
+	tx = ddev->device_prep_dma_memcpy(vop_ch, dst, src, len,
+		DMA_PREP_FENCE);
+	if (!tx) {
+		err = -ENOMEM;
+		goto error;
+	} else {
+		dma_cookie_t cookie;
+
+		cookie = tx->tx_submit(tx);
+		if (dma_submit_error(cookie)) {
+			err = -ENOMEM;
+			goto error;
+		}
+		dma_async_issue_pending(vop_ch);
+		err = dma_sync_wait(vop_ch, cookie);
+	}
+error:
+	if (err)
+		dev_err(&vi->vpdev->dev, "%s %d err %d\n",
+			__func__, __LINE__, err);
+	return err;
+}
+
+#define VOP_USE_DMA true
+
+/*
+ * Initiates the copies across the PCIe bus from card memory to a user
+ * space buffer. When transfers are done using DMA, source/destination
+ * addresses and transfer length must follow the alignment requirements of
+ * the MIC DMA engine.
+ */
+static int vop_virtio_copy_to_user(struct vop_vdev *vdev, void __user *ubuf,
+				   size_t len, u64 daddr, size_t dlen,
+				   int vr_idx)
+{
+	struct vop_device *vpdev = vdev->vpdev;
+	void __iomem *dbuf = vpdev->hw_ops->ioremap(vpdev, daddr, len);
+	struct vop_vringh *vvr = &vdev->vvr[vr_idx];
+	struct vop_info *vi = dev_get_drvdata(&vpdev->dev);
+	size_t dma_alignment = 1 << vi->dma_ch->device->copy_align;
+	bool x200 = is_dma_copy_aligned(vi->dma_ch->device, 1, 1, 1);
+	size_t dma_offset, partlen;
+	int err;
+
+	if (!VOP_USE_DMA) {
+		if (copy_to_user(ubuf, (void __force *)dbuf, len)) {
+			err = -EFAULT;
+			dev_err(vop_dev(vdev), "%s %d err %d\n",
+				__func__, __LINE__, err);
+			goto err;
+		}
+		vdev->in_bytes += len;
+		err = 0;
+		goto err;
+	}
+
+	dma_offset = daddr - round_down(daddr, dma_alignment);
+	daddr -= dma_offset;
+	len += dma_offset;
+	/*
+	 * X100 uses DMA addresses as seen by the card so adding
+	 * the aperture base is not required for DMA. However x200
+	 * requires DMA addresses to be an offset into the bar so
+	 * add the aperture base for x200.
+	 */
+	if (x200)
+		daddr += vpdev->aper->pa;
+	while (len) {
+		partlen = min_t(size_t, len, VOP_INT_DMA_BUF_SIZE);
+		err = vop_sync_dma(vdev, vvr->buf_da, daddr,
+				   ALIGN(partlen, dma_alignment));
+		if (err) {
+			dev_err(vop_dev(vdev), "%s %d err %d\n",
+				__func__, __LINE__, err);
+			goto err;
+		}
+		if (copy_to_user(ubuf, vvr->buf + dma_offset,
+				 partlen - dma_offset)) {
+			err = -EFAULT;
+			dev_err(vop_dev(vdev), "%s %d err %d\n",
+				__func__, __LINE__, err);
+			goto err;
+		}
+		daddr += partlen;
+		ubuf += partlen;
+		dbuf += partlen;
+		vdev->in_bytes_dma += partlen;
+		vdev->in_bytes += partlen;
+		len -= partlen;
+		dma_offset = 0;
+	}
+	err = 0;
+err:
+	vpdev->hw_ops->iounmap(vpdev, dbuf);
+	dev_dbg(vop_dev(vdev),
+		"%s: ubuf %p dbuf %p len 0x%lx vr_idx 0x%x\n",
+		__func__, ubuf, dbuf, len, vr_idx);
+	return err;
+}
+
+/*
+ * Initiates copies across the PCIe bus from a user space buffer to card
+ * memory. When transfers are done using DMA, source/destination addresses
+ * and transfer length must follow the alignment requirements of the MIC
+ * DMA engine.
+ */
+static int vop_virtio_copy_from_user(struct vop_vdev *vdev, void __user *ubuf,
+				     size_t len, u64 daddr, size_t dlen,
+				     int vr_idx)
+{
+	struct vop_device *vpdev = vdev->vpdev;
+	void __iomem *dbuf = vpdev->hw_ops->ioremap(vpdev, daddr, len);
+	struct vop_vringh *vvr = &vdev->vvr[vr_idx];
+	struct vop_info *vi = dev_get_drvdata(&vdev->vpdev->dev);
+	size_t dma_alignment = 1 << vi->dma_ch->device->copy_align;
+	bool x200 = is_dma_copy_aligned(vi->dma_ch->device, 1, 1, 1);
+	size_t partlen;
+	bool dma = VOP_USE_DMA;
+	int err = 0;
+
+	if (daddr & (dma_alignment - 1)) {
+		vdev->tx_dst_unaligned += len;
+		dma = false;
+	} else if (ALIGN(len, dma_alignment) > dlen) {
+		vdev->tx_len_unaligned += len;
+		dma = false;
+	}
+
+	if (!dma)
+		goto memcpy;
+
+	/*
+	 * X100 uses DMA addresses as seen by the card so adding
+	 * the aperture base is not required for DMA. However x200
+	 * requires DMA addresses to be an offset into the bar so
+	 * add the aperture base for x200.
+	 */
+	if (x200)
+		daddr += vpdev->aper->pa;
+	while (len) {
+		partlen = min_t(size_t, len, VOP_INT_DMA_BUF_SIZE);
+
+		if (copy_from_user(vvr->buf, ubuf, partlen)) {
+			err = -EFAULT;
+			dev_err(vop_dev(vdev), "%s %d err %d\n",
+				__func__, __LINE__, err);
+			goto err;
+		}
+		err = vop_sync_dma(vdev, daddr, vvr->buf_da,
+				   ALIGN(partlen, dma_alignment));
+		if (err) {
+			dev_err(vop_dev(vdev), "%s %d err %d\n",
+				__func__, __LINE__, err);
+			goto err;
+		}
+		daddr += partlen;
+		ubuf += partlen;
+		dbuf += partlen;
+		vdev->out_bytes_dma += partlen;
+		vdev->out_bytes += partlen;
+		len -= partlen;
+	}
+memcpy:
+	/*
+	 * We are copying to IO below and should ideally use something
+	 * like copy_from_user_toio(..) if it existed.
+	 */
+	if (copy_from_user((void __force *)dbuf, ubuf, len)) {
+		err = -EFAULT;
+		dev_err(vop_dev(vdev), "%s %d err %d\n",
+			__func__, __LINE__, err);
+		goto err;
+	}
+	vdev->out_bytes += len;
+	err = 0;
+err:
+	vpdev->hw_ops->iounmap(vpdev, dbuf);
+	dev_dbg(vop_dev(vdev),
+		"%s: ubuf %p dbuf %p len 0x%lx vr_idx 0x%x\n",
+		__func__, ubuf, dbuf, len, vr_idx);
+	return err;
+}
+
+#define MIC_VRINGH_READ true
+
+/* Determine the total number of bytes consumed in a VRINGH KIOV */
+static inline u32 vop_vringh_iov_consumed(struct vringh_kiov *iov)
+{
+	int i;
+	u32 total = iov->consumed;
+
+	for (i = 0; i < iov->i; i++)
+		total += iov->iov[i].iov_len;
+	return total;
+}
+
+/*
+ * Traverse the VRINGH KIOV and issue the APIs to trigger the copies.
+ * This API is heavily based on the vringh_iov_xfer(..) implementation
+ * in vringh.c. The reason we cannot reuse vringh_iov_pull_kern(..)
+ * and vringh_iov_push_kern(..) directly is because there is no
+ * way to override the VRINGH xfer(..) routines as of v3.10.
+ */
+static int vop_vringh_copy(struct vop_vdev *vdev, struct vringh_kiov *iov,
+			   void __user *ubuf, size_t len, bool read, int vr_idx,
+			   size_t *out_len)
+{
+	int ret = 0;
+	size_t partlen, tot_len = 0;
+
+	while (len && iov->i < iov->used) {
+		struct kvec *kiov = &iov->iov[iov->i];
+
+		partlen = min(kiov->iov_len, len);
+		if (read)
+			ret = vop_virtio_copy_to_user(vdev, ubuf, partlen,
+						      (u64)kiov->iov_base,
+						      kiov->iov_len,
+						      vr_idx);
+		else
+			ret = vop_virtio_copy_from_user(vdev, ubuf, partlen,
+							(u64)kiov->iov_base,
+							kiov->iov_len,
+							vr_idx);
+		if (ret) {
+			dev_err(vop_dev(vdev), "%s %d err %d\n",
+				__func__, __LINE__, ret);
+			break;
+		}
+		len -= partlen;
+		ubuf += partlen;
+		tot_len += partlen;
+		iov->consumed += partlen;
+		kiov->iov_len -= partlen;
+		kiov->iov_base += partlen;
+		if (!kiov->iov_len) {
+			/* Fix up old iov element then increment. */
+			kiov->iov_len = iov->consumed;
+			kiov->iov_base -= iov->consumed;
+
+			iov->consumed = 0;
+			iov->i++;
+		}
+	}
+	*out_len = tot_len;
+	return ret;
+}
+
+/*
+ * Use the standard VRINGH infrastructure in the kernel to fetch new
+ * descriptors, initiate the copies and update the used ring.
+ */
+static int _vop_virtio_copy(struct vop_vdev *vdev, struct mic_copy_desc *copy)
+{
+	int ret = 0;
+	u32 iovcnt = copy->iovcnt;
+	struct iovec iov;
+	struct iovec __user *u_iov = copy->iov;
+	void __user *ubuf = NULL;
+	struct vop_vringh *vvr = &vdev->vvr[copy->vr_idx];
+	struct vringh_kiov *riov = &vvr->riov;
+	struct vringh_kiov *wiov = &vvr->wiov;
+	struct vringh *vrh = &vvr->vrh;
+	u16 *head = &vvr->head;
+	struct mic_vring *vr = &vvr->vring;
+	size_t len = 0, out_len;
+
+	copy->out_len = 0;
+	/* Fetch a new IOVEC if all previous elements have been processed */
+	if (riov->i == riov->used && wiov->i == wiov->used) {
+		ret = vringh_getdesc_kern(vrh, riov, wiov,
+					  head, GFP_KERNEL);
+		/* Check if there are available descriptors */
+		if (ret <= 0)
+			return ret;
+	}
+	while (iovcnt) {
+		if (!len) {
+			/* Copy over a new iovec from user space. */
+			ret = copy_from_user(&iov, u_iov, sizeof(*u_iov));
+			if (ret) {
+				ret = -EINVAL;
+				dev_err(vop_dev(vdev), "%s %d err %d\n",
+					__func__, __LINE__, ret);
+				break;
+			}
+			len = iov.iov_len;
+			ubuf = iov.iov_base;
+		}
+		/* Issue all the read descriptors first */
+		ret = vop_vringh_copy(vdev, riov, ubuf, len,
+				      MIC_VRINGH_READ, copy->vr_idx, &out_len);
+		if (ret) {
+			dev_err(vop_dev(vdev), "%s %d err %d\n",
+				__func__, __LINE__, ret);
+			break;
+		}
+		len -= out_len;
+		ubuf += out_len;
+		copy->out_len += out_len;
+		/* Issue the write descriptors next */
+		ret = vop_vringh_copy(vdev, wiov, ubuf, len,
+				      !MIC_VRINGH_READ, copy->vr_idx, &out_len);
+		if (ret) {
+			dev_err(vop_dev(vdev), "%s %d err %d\n",
+				__func__, __LINE__, ret);
+			break;
+		}
+		len -= out_len;
+		ubuf += out_len;
+		copy->out_len += out_len;
+		if (!len) {
+			/* One user space iovec is now completed */
+			iovcnt--;
+			u_iov++;
+		}
+		/* Exit loop if all elements in KIOVs have been processed. */
+		if (riov->i == riov->used && wiov->i == wiov->used)
+			break;
+	}
+	/*
+	 * Update the used ring if a descriptor was available and some data was
+	 * copied in/out and the user asked for a used ring update.
+	 */
+	if (*head != USHRT_MAX && copy->out_len && copy->update_used) {
+		u32 total = 0;
+
+		/* Determine the total data consumed */
+		total += vop_vringh_iov_consumed(riov);
+		total += vop_vringh_iov_consumed(wiov);
+		vringh_complete_kern(vrh, *head, total);
+		*head = USHRT_MAX;
+		if (vringh_need_notify_kern(vrh) > 0)
+			vringh_notify(vrh);
+		vringh_kiov_cleanup(riov);
+		vringh_kiov_cleanup(wiov);
+		/* Update avail idx for user space */
+		vr->info->avail_idx = vrh->last_avail_idx;
+	}
+	return ret;
+}
+
+static inline int vop_verify_copy_args(struct vop_vdev *vdev,
+				       struct mic_copy_desc *copy)
+{
+	if (!vdev || copy->vr_idx >= vdev->dd->num_vq)
+		return -EINVAL;
+	return 0;
+}
+
+/* Copy a specified number of virtio descriptors in a chain */
+static int vop_virtio_copy_desc(struct vop_vdev *vdev,
+				struct mic_copy_desc *copy)
+{
+	int err;
+	struct vop_vringh *vvr;
+
+	err = vop_verify_copy_args(vdev, copy);
+	if (err)
+		return err;
+
+	vvr = &vdev->vvr[copy->vr_idx];
+	mutex_lock(&vvr->vr_mutex);
+	if (!vop_vdevup(vdev)) {
+		err = -ENODEV;
+		dev_err(vop_dev(vdev), "%s %d err %d\n",
+			__func__, __LINE__, err);
+		goto err;
+	}
+	err = _vop_virtio_copy(vdev, copy);
+	if (err) {
+		dev_err(vop_dev(vdev), "%s %d err %d\n",
+			__func__, __LINE__, err);
+	}
+err:
+	mutex_unlock(&vvr->vr_mutex);
+	return err;
+}
+
+static int vop_open(struct inode *inode, struct file *f)
+{
+	struct vop_vdev *vdev;
+	struct vop_info *vi = container_of(f->private_data,
+		struct vop_info, miscdev);
+
+	vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
+	if (!vdev)
+		return -ENOMEM;
+	vdev->vi = vi;
+	mutex_init(&vdev->vdev_mutex);
+	f->private_data = vdev;
+	init_completion(&vdev->destroy);
+	complete(&vdev->destroy);
+	return 0;
+}
+
+static int vop_release(struct inode *inode, struct file *f)
+{
+	struct vop_vdev *vdev = f->private_data, *vdev_tmp;
+	struct vop_info *vi = vdev->vi;
+	struct list_head *pos, *tmp;
+	bool found = false;
+
+	mutex_lock(&vdev->vdev_mutex);
+	if (vdev->deleted)
+		goto unlock;
+	mutex_lock(&vi->vop_mutex);
+	list_for_each_safe(pos, tmp, &vi->vdev_list) {
+		vdev_tmp = list_entry(pos, struct vop_vdev, list);
+		if (vdev == vdev_tmp) {
+			vop_virtio_del_device(vdev);
+			list_del(pos);
+			found = true;
+			break;
+		}
+	}
+	mutex_unlock(&vi->vop_mutex);
+unlock:
+	mutex_unlock(&vdev->vdev_mutex);
+	if (!found)
+		wait_for_completion(&vdev->destroy);
+	f->private_data = NULL;
+	kfree(vdev);
+	return 0;
+}
+
+static long vop_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
+{
+	struct vop_vdev *vdev = f->private_data;
+	struct vop_info *vi = vdev->vi;
+	void __user *argp = (void __user *)arg;
+	int ret;
+
+	switch (cmd) {
+	case MIC_VIRTIO_ADD_DEVICE:
+	{
+		struct mic_device_desc dd, *dd_config;
+
+		if (copy_from_user(&dd, argp, sizeof(dd)))
+			return -EFAULT;
+
+		if (mic_aligned_desc_size(&dd) > MIC_MAX_DESC_BLK_SIZE ||
+		    dd.num_vq > MIC_MAX_VRINGS)
+			return -EINVAL;
+
+		dd_config = kzalloc(mic_desc_size(&dd), GFP_KERNEL);
+		if (!dd_config)
+			return -ENOMEM;
+		if (copy_from_user(dd_config, argp, mic_desc_size(&dd))) {
+			ret = -EFAULT;
+			goto free_ret;
+		}
+		mutex_lock(&vdev->vdev_mutex);
+		mutex_lock(&vi->vop_mutex);
+		ret = vop_virtio_add_device(vdev, dd_config);
+		if (ret)
+			goto unlock_ret;
+		list_add_tail(&vdev->list, &vi->vdev_list);
+unlock_ret:
+		mutex_unlock(&vi->vop_mutex);
+		mutex_unlock(&vdev->vdev_mutex);
+free_ret:
+		kfree(dd_config);
+		return ret;
+	}
+	case MIC_VIRTIO_COPY_DESC:
+	{
+		struct mic_copy_desc copy;
+
+		mutex_lock(&vdev->vdev_mutex);
+		ret = vop_vdev_inited(vdev);
+		if (ret)
+			goto _unlock_ret;
+
+		if (copy_from_user(&copy, argp, sizeof(copy))) {
+			ret = -EFAULT;
+			goto _unlock_ret;
+		}
+
+		ret = vop_virtio_copy_desc(vdev, &copy);
+		if (ret < 0)
+			goto _unlock_ret;
+		if (copy_to_user(
+			&((struct mic_copy_desc __user *)argp)->out_len,
+			&copy.out_len, sizeof(copy.out_len)))
+			ret = -EFAULT;
+_unlock_ret:
+		mutex_unlock(&vdev->vdev_mutex);
+		return ret;
+	}
+	case MIC_VIRTIO_CONFIG_CHANGE:
+	{
+		void *buf;
+
+		mutex_lock(&vdev->vdev_mutex);
+		ret = vop_vdev_inited(vdev);
+		if (ret)
+			goto __unlock_ret;
+		buf = kzalloc(vdev->dd->config_len, GFP_KERNEL);
+		if (!buf) {
+			ret = -ENOMEM;
+			goto __unlock_ret;
+		}
+		if (copy_from_user(buf, argp, vdev->dd->config_len)) {
+			ret = -EFAULT;
+			goto done;
+		}
+		ret = vop_virtio_config_change(vdev, buf);
+done:
+		kfree(buf);
+__unlock_ret:
+		mutex_unlock(&vdev->vdev_mutex);
+		return ret;
+	}
+	default:
+		return -ENOIOCTLCMD;
+	};
+	return 0;
+}
+
+/*
+ * We return POLLIN | POLLOUT from poll when new buffers are enqueued, and
+ * not when previously enqueued buffers may be available. This means that
+ * in the card->host (TX) path, when userspace is unblocked by poll it
+ * must drain all available descriptors or it can stall.
+ */
+static unsigned int vop_poll(struct file *f, poll_table *wait)
+{
+	struct vop_vdev *vdev = f->private_data;
+	int mask = 0;
+
+	mutex_lock(&vdev->vdev_mutex);
+	if (vop_vdev_inited(vdev)) {
+		mask = POLLERR;
+		goto done;
+	}
+	poll_wait(f, &vdev->waitq, wait);
+	if (vop_vdev_inited(vdev)) {
+		mask = POLLERR;
+	} else if (vdev->poll_wake) {
+		vdev->poll_wake = 0;
+		mask = POLLIN | POLLOUT;
+	}
+done:
+	mutex_unlock(&vdev->vdev_mutex);
+	return mask;
+}
+
+static inline int
+vop_query_offset(struct vop_vdev *vdev, unsigned long offset,
+		 unsigned long *size, unsigned long *pa)
+{
+	struct vop_device *vpdev = vdev->vpdev;
+	unsigned long start = MIC_DP_SIZE;
+	int i;
+
+	/*
+	 * MMAP interface is as follows:
+	 * offset				region
+	 * 0x0					virtio device_page
+	 * 0x1000				first vring
+	 * 0x1000 + size of 1st vring		second vring
+	 * ....
+	 */
+	if (!offset) {
+		*pa = virt_to_phys(vpdev->hw_ops->get_dp(vpdev));
+		*size = MIC_DP_SIZE;
+		return 0;
+	}
+
+	for (i = 0; i < vdev->dd->num_vq; i++) {
+		struct vop_vringh *vvr = &vdev->vvr[i];
+
+		if (offset == start) {
+			*pa = virt_to_phys(vvr->vring.va);
+			*size = vvr->vring.len;
+			return 0;
+		}
+		start += vvr->vring.len;
+	}
+	return -1;
+}
+
+/*
+ * Maps the device page and virtio rings to user space for readonly access.
+ */
+static int vop_mmap(struct file *f, struct vm_area_struct *vma)
+{
+	struct vop_vdev *vdev = f->private_data;
+	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
+	unsigned long pa, size = vma->vm_end - vma->vm_start, size_rem = size;
+	int i, err;
+
+	err = vop_vdev_inited(vdev);
+	if (err)
+		goto ret;
+	if (vma->vm_flags & VM_WRITE) {
+		err = -EACCES;
+		goto ret;
+	}
+	while (size_rem) {
+		i = vop_query_offset(vdev, offset, &size, &pa);
+		if (i < 0) {
+			err = -EINVAL;
+			goto ret;
+		}
+		err = remap_pfn_range(vma, vma->vm_start + offset,
+				      pa >> PAGE_SHIFT, size,
+				      vma->vm_page_prot);
+		if (err)
+			goto ret;
+		size_rem -= size;
+		offset += size;
+	}
+ret:
+	return err;
+}
+
+static const struct file_operations vop_fops = {
+	.open = vop_open,
+	.release = vop_release,
+	.unlocked_ioctl = vop_ioctl,
+	.poll = vop_poll,
+	.mmap = vop_mmap,
+	.owner = THIS_MODULE,
+};
+
+int vop_host_init(struct vop_info *vi)
+{
+	int rc;
+	struct miscdevice *mdev;
+	struct vop_device *vpdev = vi->vpdev;
+
+	INIT_LIST_HEAD(&vi->vdev_list);
+	vi->dma_ch = vpdev->dma_ch;
+	mdev = &vi->miscdev;
+	mdev->minor = MISC_DYNAMIC_MINOR;
+	snprintf(vi->name, sizeof(vi->name), "vop_virtio%d", vpdev->index);
+	mdev->name = vi->name;
+	mdev->fops = &vop_fops;
+	mdev->parent = &vpdev->dev;
+
+	rc = misc_register(mdev);
+	if (rc)
+		dev_err(&vpdev->dev, "%s failed rc %d\n", __func__, rc);
+	return rc;
+}
+
+void vop_host_uninit(struct vop_info *vi)
+{
+	struct list_head *pos, *tmp;
+	struct vop_vdev *vdev;
+
+	mutex_lock(&vi->vop_mutex);
+	vop_virtio_reset_devices(vi);
+	list_for_each_safe(pos, tmp, &vi->vdev_list) {
+		vdev = list_entry(pos, struct vop_vdev, list);
+		list_del(pos);
+		reinit_completion(&vdev->destroy);
+		mutex_unlock(&vi->vop_mutex);
+		mutex_lock(&vdev->vdev_mutex);
+		vop_virtio_del_device(vdev);
+		vdev->deleted = true;
+		mutex_unlock(&vdev->vdev_mutex);
+		complete(&vdev->destroy);
+		mutex_lock(&vi->vop_mutex);
+	}
+	mutex_unlock(&vi->vop_mutex);
+	misc_deregister(&vi->miscdev);
+}
diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
index 9a17a9b..15bb0c8 100644
--- a/drivers/misc/pch_phub.c
+++ b/drivers/misc/pch_phub.c
@@ -503,8 +503,7 @@ static ssize_t pch_phub_bin_read(struct file *filp, struct kobject *kobj,
 	int err;
 	ssize_t rom_size;
 
-	struct pch_phub_reg *chip =
-		dev_get_drvdata(container_of(kobj, struct device, kobj));
+	struct pch_phub_reg *chip = dev_get_drvdata(kobj_to_dev(kobj));
 
 	ret = mutex_lock_interruptible(&pch_phub_mutex);
 	if (ret) {
@@ -567,8 +566,7 @@ static ssize_t pch_phub_bin_write(struct file *filp, struct kobject *kobj,
 	unsigned int addr_offset;
 	int ret;
 	ssize_t rom_size;
-	struct pch_phub_reg *chip =
-		dev_get_drvdata(container_of(kobj, struct device, kobj));
+	struct pch_phub_reg *chip = dev_get_drvdata(kobj_to_dev(kobj));
 
 	ret = mutex_lock_interruptible(&pch_phub_mutex);
 	if (ret)
diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c
index 6e3af8b..dcdbd58 100644
--- a/drivers/misc/ti-st/st_core.c
+++ b/drivers/misc/ti-st/st_core.c
@@ -632,7 +632,6 @@ long st_register(struct st_proto_s *new_proto)
 		spin_unlock_irqrestore(&st_gdata->lock, flags);
 		return err;
 	}
-	pr_debug("done %s(%d) ", __func__, new_proto->chnl_id);
 }
 EXPORT_SYMBOL_GPL(st_register);
 
diff --git a/drivers/misc/vmw_vmci/vmci_driver.c b/drivers/misc/vmw_vmci/vmci_driver.c
index b823f9a..896be15 100644
--- a/drivers/misc/vmw_vmci/vmci_driver.c
+++ b/drivers/misc/vmw_vmci/vmci_driver.c
@@ -113,5 +113,5 @@ module_exit(vmci_drv_exit);
 
 MODULE_AUTHOR("VMware, Inc.");
 MODULE_DESCRIPTION("VMware Virtual Machine Communication Interface.");
-MODULE_VERSION("1.1.3.0-k");
+MODULE_VERSION("1.1.4.0-k");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 5914263..fe207e5 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -47,13 +47,10 @@
 #include "queue.h"
 
 MODULE_ALIAS("mmc:block");
-
-#ifdef KERNEL
 #ifdef MODULE_PARAM_PREFIX
 #undef MODULE_PARAM_PREFIX
 #endif
 #define MODULE_PARAM_PREFIX "mmcblk."
-#endif
 
 #define INAND_CMD38_ARG_EXT_CSD  113
 #define INAND_CMD38_ARG_ERASE    0x00
@@ -655,8 +652,10 @@ static int mmc_blk_ioctl_multi_cmd(struct block_device *bdev,
 	}
 
 	md = mmc_blk_get(bdev->bd_disk);
-	if (!md)
+	if (!md) {
+		err = -EINVAL;
 		goto cmd_err;
+	}
 
 	card = md->queue.card;
 	if (IS_ERR(card)) {
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index 1c1b45e..3446097 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -925,6 +925,10 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd,
 
 			dma_addr = dma_map_page(dma_dev, sg_page(sg), 0,
 						PAGE_SIZE, dir);
+			if (dma_mapping_error(dma_dev, dma_addr)) {
+				data->error = -EFAULT;
+				break;
+			}
 			if (direction == DMA_TO_DEVICE)
 				t->tx_dma = dma_addr + sg->offset;
 			else
@@ -1393,10 +1397,12 @@ static int mmc_spi_probe(struct spi_device *spi)
 		host->dma_dev = dev;
 		host->ones_dma = dma_map_single(dev, ones,
 				MMC_SPI_BLOCKSIZE, DMA_TO_DEVICE);
+		if (dma_mapping_error(dev, host->ones_dma))
+			goto fail_ones_dma;
 		host->data_dma = dma_map_single(dev, host->data,
 				sizeof(*host->data), DMA_BIDIRECTIONAL);
-
-		/* REVISIT in theory those map operations can fail... */
+		if (dma_mapping_error(dev, host->data_dma))
+			goto fail_data_dma;
 
 		dma_sync_single_for_cpu(host->dma_dev,
 				host->data_dma, sizeof(*host->data),
@@ -1462,6 +1468,11 @@ fail_glue_init:
 	if (host->dma_dev)
 		dma_unmap_single(host->dma_dev, host->data_dma,
 				sizeof(*host->data), DMA_BIDIRECTIONAL);
+fail_data_dma:
+	if (host->dma_dev)
+		dma_unmap_single(host->dma_dev, host->ones_dma,
+				MMC_SPI_BLOCKSIZE, DMA_TO_DEVICE);
+fail_ones_dma:
 	kfree(host->data);
 
 fail_nobuf1:
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index b6639ea..f6e4d97 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2232,6 +2232,7 @@ err_irq:
 		dma_release_channel(host->tx_chan);
 	if (host->rx_chan)
 		dma_release_channel(host->rx_chan);
+	pm_runtime_dont_use_autosuspend(host->dev);
 	pm_runtime_put_sync(host->dev);
 	pm_runtime_disable(host->dev);
 	if (host->dbclk)
@@ -2253,6 +2254,7 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
 	dma_release_channel(host->tx_chan);
 	dma_release_channel(host->rx_chan);
 
+	pm_runtime_dont_use_autosuspend(host->dev);
 	pm_runtime_put_sync(host->dev);
 	pm_runtime_disable(host->dev);
 	device_init_wakeup(&pdev->dev, false);
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index ce08896..da82477 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -86,7 +86,7 @@ struct pxamci_host {
 static inline void pxamci_init_ocr(struct pxamci_host *host)
 {
 #ifdef CONFIG_REGULATOR
-	host->vcc = regulator_get_optional(mmc_dev(host->mmc), "vmmc");
+	host->vcc = devm_regulator_get_optional(mmc_dev(host->mmc), "vmmc");
 
 	if (IS_ERR(host->vcc))
 		host->vcc = NULL;
@@ -654,12 +654,8 @@ static int pxamci_probe(struct platform_device *pdev)
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	irq = platform_get_irq(pdev, 0);
-	if (!r || irq < 0)
-		return -ENXIO;
-
-	r = request_mem_region(r->start, SZ_4K, DRIVER_NAME);
-	if (!r)
-		return -EBUSY;
+	if (irq < 0)
+		return irq;
 
 	mmc = mmc_alloc_host(sizeof(struct pxamci_host), &pdev->dev);
 	if (!mmc) {
@@ -695,7 +691,7 @@ static int pxamci_probe(struct platform_device *pdev)
 	host->pdata = pdev->dev.platform_data;
 	host->clkrt = CLKRT_OFF;
 
-	host->clk = clk_get(&pdev->dev, NULL);
+	host->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(host->clk)) {
 		ret = PTR_ERR(host->clk);
 		host->clk = NULL;
@@ -727,9 +723,9 @@ static int pxamci_probe(struct platform_device *pdev)
 	host->irq = irq;
 	host->imask = MMC_I_MASK_ALL;
 
-	host->base = ioremap(r->start, SZ_4K);
-	if (!host->base) {
-		ret = -ENOMEM;
+	host->base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(host->base)) {
+		ret = PTR_ERR(host->base);
 		goto out;
 	}
 
@@ -742,7 +738,8 @@ static int pxamci_probe(struct platform_device *pdev)
 	writel(64, host->base + MMC_RESTO);
 	writel(host->imask, host->base + MMC_I_MASK);
 
-	ret = request_irq(host->irq, pxamci_irq, 0, DRIVER_NAME, host);
+	ret = devm_request_irq(&pdev->dev, host->irq, pxamci_irq, 0,
+			       DRIVER_NAME, host);
 	if (ret)
 		goto out;
 
@@ -804,7 +801,7 @@ static int pxamci_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "Failed requesting gpio_ro %d\n", gpio_ro);
 		goto out;
 	} else {
-		mmc->caps |= host->pdata->gpio_card_ro_invert ?
+		mmc->caps2 |= host->pdata->gpio_card_ro_invert ?
 			0 : MMC_CAP2_RO_ACTIVE_HIGH;
 	}
 
@@ -833,14 +830,9 @@ out:
 			dma_release_channel(host->dma_chan_rx);
 		if (host->dma_chan_tx)
 			dma_release_channel(host->dma_chan_tx);
-		if (host->base)
-			iounmap(host->base);
-		if (host->clk)
-			clk_put(host->clk);
 	}
 	if (mmc)
 		mmc_free_host(mmc);
-	release_resource(r);
 	return ret;
 }
 
@@ -859,9 +851,6 @@ static int pxamci_remove(struct platform_device *pdev)
 			gpio_ro = host->pdata->gpio_card_ro;
 			gpio_power = host->pdata->gpio_power;
 		}
-		if (host->vcc)
-			regulator_put(host->vcc);
-
 		if (host->pdata && host->pdata->exit)
 			host->pdata->exit(&pdev->dev, mmc);
 
@@ -870,16 +859,10 @@ static int pxamci_remove(struct platform_device *pdev)
 		       END_CMD_RES|PRG_DONE|DATA_TRAN_DONE,
 		       host->base + MMC_I_MASK);
 
-		free_irq(host->irq, host);
 		dmaengine_terminate_all(host->dma_chan_rx);
 		dmaengine_terminate_all(host->dma_chan_tx);
 		dma_release_channel(host->dma_chan_rx);
 		dma_release_channel(host->dma_chan_tx);
-		iounmap(host->base);
-
-		clk_put(host->clk);
-
-		release_resource(host->res);
 
 		mmc_free_host(mmc);
 	}
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index f6047fc..a5cda92 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -146,6 +146,33 @@ static const struct sdhci_acpi_chip sdhci_acpi_chip_int = {
 	.ops = &sdhci_acpi_ops_int,
 };
 
+static int bxt_get_cd(struct mmc_host *mmc)
+{
+	int gpio_cd = mmc_gpio_get_cd(mmc);
+	struct sdhci_host *host = mmc_priv(mmc);
+	unsigned long flags;
+	int ret = 0;
+
+	if (!gpio_cd)
+		return 0;
+
+	pm_runtime_get_sync(mmc->parent);
+
+	spin_lock_irqsave(&host->lock, flags);
+
+	if (host->flags & SDHCI_DEVICE_DEAD)
+		goto out;
+
+	ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
+out:
+	spin_unlock_irqrestore(&host->lock, flags);
+
+	pm_runtime_mark_last_busy(mmc->parent);
+	pm_runtime_put_autosuspend(mmc->parent);
+
+	return ret;
+}
+
 static int sdhci_acpi_emmc_probe_slot(struct platform_device *pdev,
 				      const char *hid, const char *uid)
 {
@@ -196,6 +223,9 @@ static int sdhci_acpi_sd_probe_slot(struct platform_device *pdev,
 
 	/* Platform specific code during sd probe slot goes here */
 
+	if (hid && !strcmp(hid, "80865ACA"))
+		host->mmc_host_ops.get_cd = bxt_get_cd;
+
 	return 0;
 }
 
diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
index 7e7d8f0..9cb86fb 100644
--- a/drivers/mmc/host/sdhci-of-at91.c
+++ b/drivers/mmc/host/sdhci-of-at91.c
@@ -217,6 +217,7 @@ static int sdhci_at91_probe(struct platform_device *pdev)
 pm_runtime_disable:
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
+	pm_runtime_put_noidle(&pdev->dev);
 clocks_disable_unprepare:
 	clk_disable_unprepare(priv->gck);
 	clk_disable_unprepare(priv->mainck);
diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index cc851b0..df3b8ec 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -330,6 +330,33 @@ static void spt_read_drive_strength(struct sdhci_host *host)
 	sdhci_pci_spt_drive_strength = 0x10 | ((val >> 12) & 0xf);
 }
 
+static int bxt_get_cd(struct mmc_host *mmc)
+{
+	int gpio_cd = mmc_gpio_get_cd(mmc);
+	struct sdhci_host *host = mmc_priv(mmc);
+	unsigned long flags;
+	int ret = 0;
+
+	if (!gpio_cd)
+		return 0;
+
+	pm_runtime_get_sync(mmc->parent);
+
+	spin_lock_irqsave(&host->lock, flags);
+
+	if (host->flags & SDHCI_DEVICE_DEAD)
+		goto out;
+
+	ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
+out:
+	spin_unlock_irqrestore(&host->lock, flags);
+
+	pm_runtime_mark_last_busy(mmc->parent);
+	pm_runtime_put_autosuspend(mmc->parent);
+
+	return ret;
+}
+
 static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
 {
 	slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
@@ -362,6 +389,10 @@ static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
 	slot->cd_con_id = NULL;
 	slot->cd_idx = 0;
 	slot->cd_override_level = true;
+	if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXT_SD ||
+	    slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_APL_SD)
+		slot->host->mmc_host_ops.get_cd = bxt_get_cd;
+
 	return 0;
 }
 
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index d622435..add9fdf 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1360,7 +1360,7 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 	sdhci_runtime_pm_get(host);
 
 	/* Firstly check card presence */
-	present = sdhci_do_get_cd(host);
+	present = mmc->ops->get_cd(mmc);
 
 	spin_lock_irqsave(&host->lock, flags);
 
@@ -2849,6 +2849,8 @@ struct sdhci_host *sdhci_alloc_host(struct device *dev,
 
 	host = mmc_priv(mmc);
 	host->mmc = mmc;
+	host->mmc_host_ops = sdhci_ops;
+	mmc->ops = &host->mmc_host_ops;
 
 	return host;
 }
@@ -3037,7 +3039,6 @@ int sdhci_add_host(struct sdhci_host *host)
 	/*
 	 * Set host parameters.
 	 */
-	mmc->ops = &sdhci_ops;
 	max_clk = host->max_clk;
 
 	if (host->ops->get_min_clock)
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 7654ae5..0115e99 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -430,6 +430,7 @@ struct sdhci_host {
 
 	/* Internal data */
 	struct mmc_host *mmc;	/* MMC structure */
+	struct mmc_host_ops mmc_host_ops;	/* MMC host ops */
 	u64 dma_mask;		/* custom DMA mask */
 
 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 1ca8a13..6234eab3 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -445,7 +445,7 @@ static void sh_mmcif_request_dma(struct sh_mmcif_host *host)
 							pdata->slave_id_rx);
 	} else {
 		host->chan_tx = dma_request_slave_channel(dev, "tx");
-		host->chan_tx = dma_request_slave_channel(dev, "rx");
+		host->chan_rx = dma_request_slave_channel(dev, "rx");
 	}
 	dev_dbg(dev, "%s: got channel TX %p RX %p\n", __func__, host->chan_tx,
 		host->chan_rx);
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 56b5605..b7f1a99 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -214,6 +214,8 @@ static void bond_uninit(struct net_device *bond_dev);
 static struct rtnl_link_stats64 *bond_get_stats(struct net_device *bond_dev,
 						struct rtnl_link_stats64 *stats);
 static void bond_slave_arr_handler(struct work_struct *work);
+static bool bond_time_in_interval(struct bonding *bond, unsigned long last_act,
+				  int mod);
 
 /*---------------------------- General routines -----------------------------*/
 
@@ -2127,6 +2129,7 @@ static void bond_miimon_commit(struct bonding *bond)
 			continue;
 
 		case BOND_LINK_UP:
+			bond_update_speed_duplex(slave);
 			bond_set_slave_link_state(slave, BOND_LINK_UP,
 						  BOND_SLAVE_NOTIFY_NOW);
 			slave->last_link_up = jiffies;
@@ -2459,7 +2462,7 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
 		 struct slave *slave)
 {
 	struct arphdr *arp = (struct arphdr *)skb->data;
-	struct slave *curr_active_slave;
+	struct slave *curr_active_slave, *curr_arp_slave;
 	unsigned char *arp_ptr;
 	__be32 sip, tip;
 	int alen, is_arp = skb->protocol == __cpu_to_be16(ETH_P_ARP);
@@ -2506,26 +2509,41 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
 		     &sip, &tip);
 
 	curr_active_slave = rcu_dereference(bond->curr_active_slave);
+	curr_arp_slave = rcu_dereference(bond->current_arp_slave);
 
-	/* Backup slaves won't see the ARP reply, but do come through
-	 * here for each ARP probe (so we swap the sip/tip to validate
-	 * the probe).  In a "redundant switch, common router" type of
-	 * configuration, the ARP probe will (hopefully) travel from
-	 * the active, through one switch, the router, then the other
-	 * switch before reaching the backup.
+	/* We 'trust' the received ARP enough to validate it if:
+	 *
+	 * (a) the slave receiving the ARP is active (which includes the
+	 * current ARP slave, if any), or
+	 *
+	 * (b) the receiving slave isn't active, but there is a currently
+	 * active slave and it received valid arp reply(s) after it became
+	 * the currently active slave, or
+	 *
+	 * (c) there is an ARP slave that sent an ARP during the prior ARP
+	 * interval, and we receive an ARP reply on any slave.  We accept
+	 * these because switch FDB update delays may deliver the ARP
+	 * reply to a slave other than the sender of the ARP request.
 	 *
-	 * We 'trust' the arp requests if there is an active slave and
-	 * it received valid arp reply(s) after it became active. This
-	 * is done to avoid endless looping when we can't reach the
+	 * Note: for (b), backup slaves are receiving the broadcast ARP
+	 * request, not a reply.  This request passes from the sending
+	 * slave through the L2 switch(es) to the receiving slave.  Since
+	 * this is checking the request, sip/tip are swapped for
+	 * validation.
+	 *
+	 * This is done to avoid endless looping when we can't reach the
 	 * arp_ip_target and fool ourselves with our own arp requests.
 	 */
-
 	if (bond_is_active_slave(slave))
 		bond_validate_arp(bond, slave, sip, tip);
 	else if (curr_active_slave &&
 		 time_after(slave_last_rx(bond, curr_active_slave),
 			    curr_active_slave->last_link_up))
 		bond_validate_arp(bond, slave, tip, sip);
+	else if (curr_arp_slave && (arp->ar_op == htons(ARPOP_REPLY)) &&
+		 bond_time_in_interval(bond,
+				       dev_trans_start(curr_arp_slave->dev), 1))
+		bond_validate_arp(bond, slave, sip, tip);
 
 out_unlock:
 	if (arp != (struct arphdr *)skb->data)
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index fc5b756..eb7192f 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -117,6 +117,9 @@ MODULE_LICENSE("GPL v2");
  */
 #define EMS_USB_ARM7_CLOCK 8000000
 
+#define CPC_TX_QUEUE_TRIGGER_LOW	25
+#define CPC_TX_QUEUE_TRIGGER_HIGH	35
+
 /*
  * CAN-Message representation in a CPC_MSG. Message object type is
  * CPC_MSG_TYPE_CAN_FRAME or CPC_MSG_TYPE_RTR_FRAME or
@@ -278,6 +281,11 @@ static void ems_usb_read_interrupt_callback(struct urb *urb)
 	switch (urb->status) {
 	case 0:
 		dev->free_slots = dev->intr_in_buffer[1];
+		if(dev->free_slots > CPC_TX_QUEUE_TRIGGER_HIGH){
+			if (netif_queue_stopped(netdev)){
+				netif_wake_queue(netdev);
+			}
+		}
 		break;
 
 	case -ECONNRESET: /* unlink */
@@ -526,8 +534,6 @@ static void ems_usb_write_bulk_callback(struct urb *urb)
 	/* Release context */
 	context->echo_index = MAX_TX_URBS;
 
-	if (netif_queue_stopped(netdev))
-		netif_wake_queue(netdev);
 }
 
 /*
@@ -587,7 +593,7 @@ static int ems_usb_start(struct ems_usb *dev)
 	int err, i;
 
 	dev->intr_in_buffer[0] = 0;
-	dev->free_slots = 15; /* initial size */
+	dev->free_slots = 50; /* initial size */
 
 	for (i = 0; i < MAX_RX_URBS; i++) {
 		struct urb *urb = NULL;
@@ -835,7 +841,7 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne
 
 		/* Slow down tx path */
 		if (atomic_read(&dev->active_tx_urbs) >= MAX_TX_URBS ||
-		    dev->free_slots < 5) {
+		    dev->free_slots < CPC_TX_QUEUE_TRIGGER_LOW) {
 			netif_stop_queue(netdev);
 		}
 	}
diff --git a/drivers/net/dsa/mv88e6352.c b/drivers/net/dsa/mv88e6352.c
index cc6c545..a47f52f 100644
--- a/drivers/net/dsa/mv88e6352.c
+++ b/drivers/net/dsa/mv88e6352.c
@@ -25,6 +25,7 @@
 static const struct mv88e6xxx_switch_id mv88e6352_table[] = {
 	{ PORT_SWITCH_ID_6172, "Marvell 88E6172" },
 	{ PORT_SWITCH_ID_6176, "Marvell 88E6176" },
+	{ PORT_SWITCH_ID_6240, "Marvell 88E6240" },
 	{ PORT_SWITCH_ID_6320, "Marvell 88E6320" },
 	{ PORT_SWITCH_ID_6320_A1, "Marvell 88E6320 (A1)" },
 	{ PORT_SWITCH_ID_6320_A2, "Marvell 88e6320 (A2)" },
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index cf34681..512c8c0 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -1555,7 +1555,7 @@ static int _mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port, u16 vid)
 
 	if (vlan.vid != vid || !vlan.valid ||
 	    vlan.data[port] == GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER)
-		return -ENOENT;
+		return -EOPNOTSUPP;
 
 	vlan.data[port] = GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER;
 
@@ -1582,6 +1582,7 @@ int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port,
 			    const struct switchdev_obj_port_vlan *vlan)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+	const u16 defpvid = 4000 + ds->index * DSA_MAX_PORTS + port;
 	u16 pvid, vid;
 	int err = 0;
 
@@ -1597,7 +1598,8 @@ int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port,
 			goto unlock;
 
 		if (vid == pvid) {
-			err = _mv88e6xxx_port_pvid_set(ds, port, 0);
+			/* restore reserved VLAN ID */
+			err = _mv88e6xxx_port_pvid_set(ds, port, defpvid);
 			if (err)
 				goto unlock;
 		}
@@ -1889,26 +1891,20 @@ unlock:
 
 int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port, u32 members)
 {
-	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
-	const u16 pvid = 4000 + ds->index * DSA_MAX_PORTS + port;
-	int err;
-
-	/* The port joined a bridge, so leave its reserved VLAN */
-	mutex_lock(&ps->smi_mutex);
-	err = _mv88e6xxx_port_vlan_del(ds, port, pvid);
-	if (!err)
-		err = _mv88e6xxx_port_pvid_set(ds, port, 0);
-	mutex_unlock(&ps->smi_mutex);
-	return err;
+	return 0;
 }
 
 int mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port, u32 members)
 {
+	return 0;
+}
+
+static int mv88e6xxx_setup_port_default_vlan(struct dsa_switch *ds, int port)
+{
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 	const u16 pvid = 4000 + ds->index * DSA_MAX_PORTS + port;
 	int err;
 
-	/* The port left the bridge, so join its reserved VLAN */
 	mutex_lock(&ps->smi_mutex);
 	err = _mv88e6xxx_port_vlan_add(ds, port, pvid, true);
 	if (!err)
@@ -2192,8 +2188,7 @@ int mv88e6xxx_setup_ports(struct dsa_switch *ds)
 		if (dsa_is_cpu_port(ds, i) || dsa_is_dsa_port(ds, i))
 			continue;
 
-		/* setup the unbridged state */
-		ret = mv88e6xxx_port_bridge_leave(ds, i, 0);
+		ret = mv88e6xxx_setup_port_default_vlan(ds, i);
 		if (ret < 0)
 			return ret;
 	}
diff --git a/drivers/net/ethernet/8390/pcnet_cs.c b/drivers/net/ethernet/8390/pcnet_cs.c
index 2777289..2f79d29 100644
--- a/drivers/net/ethernet/8390/pcnet_cs.c
+++ b/drivers/net/ethernet/8390/pcnet_cs.c
@@ -1501,6 +1501,7 @@ static const struct pcmcia_device_id pcnet_ids[] = {
 	PCMCIA_DEVICE_MANF_CARD(0x026f, 0x030a),
 	PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1103),
 	PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1121),
+	PCMCIA_DEVICE_MANF_CARD(0xc001, 0x0009),
 	PCMCIA_DEVICE_PROD_ID12("2408LAN", "Ethernet", 0x352fff7f, 0x00b2e941),
 	PCMCIA_DEVICE_PROD_ID1234("Socket", "CF 10/100 Ethernet Card", "Revision B", "05/11/06", 0xb38bcc2e, 0x4de88352, 0xeaca6c8d, 0x7e57c22e),
 	PCMCIA_DEVICE_PROD_ID123("Cardwell", "PCMCIA", "ETHERNET", 0x9533672e, 0x281f1c5d, 0x3ff7175b),
diff --git a/drivers/net/ethernet/agere/et131x.c b/drivers/net/ethernet/agere/et131x.c
index 3f3bcbe..0907ab6 100644
--- a/drivers/net/ethernet/agere/et131x.c
+++ b/drivers/net/ethernet/agere/et131x.c
@@ -2380,7 +2380,7 @@ static int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter)
 						    sizeof(u32),
 						    &tx_ring->tx_status_pa,
 						    GFP_KERNEL);
-	if (!tx_ring->tx_status_pa) {
+	if (!tx_ring->tx_status) {
 		dev_err(&adapter->pdev->dev,
 			"Cannot alloc memory for Tx status block\n");
 		return -ENOMEM;
diff --git a/drivers/net/ethernet/amd/am79c961a.c b/drivers/net/ethernet/amd/am79c961a.c
index 87e727b..fcdf5dd 100644
--- a/drivers/net/ethernet/amd/am79c961a.c
+++ b/drivers/net/ethernet/amd/am79c961a.c
@@ -50,8 +50,8 @@ static const char version[] =
 static void write_rreg(u_long base, u_int reg, u_int val)
 {
 	asm volatile(
-	"str%?h	%1, [%2]	@ NET_RAP\n\t"
-	"str%?h	%0, [%2, #-4]	@ NET_RDP"
+	"strh	%1, [%2]	@ NET_RAP\n\t"
+	"strh	%0, [%2, #-4]	@ NET_RDP"
 	:
 	: "r" (val), "r" (reg), "r" (ISAIO_BASE + 0x0464));
 }
@@ -60,8 +60,8 @@ static inline unsigned short read_rreg(u_long base_addr, u_int reg)
 {
 	unsigned short v;
 	asm volatile(
-	"str%?h	%1, [%2]	@ NET_RAP\n\t"
-	"ldr%?h	%0, [%2, #-4]	@ NET_RDP"
+	"strh	%1, [%2]	@ NET_RAP\n\t"
+	"ldrh	%0, [%2, #-4]	@ NET_RDP"
 	: "=r" (v)
 	: "r" (reg), "r" (ISAIO_BASE + 0x0464));
 	return v;
@@ -70,8 +70,8 @@ static inline unsigned short read_rreg(u_long base_addr, u_int reg)
 static inline void write_ireg(u_long base, u_int reg, u_int val)
 {
 	asm volatile(
-	"str%?h	%1, [%2]	@ NET_RAP\n\t"
-	"str%?h	%0, [%2, #8]	@ NET_IDP"
+	"strh	%1, [%2]	@ NET_RAP\n\t"
+	"strh	%0, [%2, #8]	@ NET_IDP"
 	:
 	: "r" (val), "r" (reg), "r" (ISAIO_BASE + 0x0464));
 }
@@ -80,8 +80,8 @@ static inline unsigned short read_ireg(u_long base_addr, u_int reg)
 {
 	u_short v;
 	asm volatile(
-	"str%?h	%1, [%2]	@ NAT_RAP\n\t"
-	"ldr%?h	%0, [%2, #8]	@ NET_IDP\n\t"
+	"strh	%1, [%2]	@ NAT_RAP\n\t"
+	"ldrh	%0, [%2, #8]	@ NET_IDP\n\t"
 	: "=r" (v)
 	: "r" (reg), "r" (ISAIO_BASE + 0x0464));
 	return v;
@@ -96,7 +96,7 @@ am_writebuffer(struct net_device *dev, u_int offset, unsigned char *buf, unsigne
 	offset = ISAMEM_BASE + (offset << 1);
 	length = (length + 1) & ~1;
 	if ((int)buf & 2) {
-		asm volatile("str%?h	%2, [%0], #4"
+		asm volatile("strh	%2, [%0], #4"
 		 : "=&r" (offset) : "0" (offset), "r" (buf[0] | (buf[1] << 8)));
 		buf += 2;
 		length -= 2;
@@ -104,20 +104,20 @@ am_writebuffer(struct net_device *dev, u_int offset, unsigned char *buf, unsigne
 	while (length > 8) {
 		register unsigned int tmp asm("r2"), tmp2 asm("r3");
 		asm volatile(
-			"ldm%?ia	%0!, {%1, %2}"
+			"ldmia	%0!, {%1, %2}"
 			: "+r" (buf), "=&r" (tmp), "=&r" (tmp2));
 		length -= 8;
 		asm volatile(
-			"str%?h	%1, [%0], #4\n\t"
-			"mov%?	%1, %1, lsr #16\n\t"
-			"str%?h	%1, [%0], #4\n\t"
-			"str%?h	%2, [%0], #4\n\t"
-			"mov%?	%2, %2, lsr #16\n\t"
-			"str%?h	%2, [%0], #4"
+			"strh	%1, [%0], #4\n\t"
+			"mov	%1, %1, lsr #16\n\t"
+			"strh	%1, [%0], #4\n\t"
+			"strh	%2, [%0], #4\n\t"
+			"mov	%2, %2, lsr #16\n\t"
+			"strh	%2, [%0], #4"
 		: "+r" (offset), "=&r" (tmp), "=&r" (tmp2));
 	}
 	while (length > 0) {
-		asm volatile("str%?h	%2, [%0], #4"
+		asm volatile("strh	%2, [%0], #4"
 		 : "=&r" (offset) : "0" (offset), "r" (buf[0] | (buf[1] << 8)));
 		buf += 2;
 		length -= 2;
@@ -132,23 +132,23 @@ am_readbuffer(struct net_device *dev, u_int offset, unsigned char *buf, unsigned
 	if ((int)buf & 2) {
 		unsigned int tmp;
 		asm volatile(
-			"ldr%?h	%2, [%0], #4\n\t"
-			"str%?b	%2, [%1], #1\n\t"
-			"mov%?	%2, %2, lsr #8\n\t"
-			"str%?b	%2, [%1], #1"
+			"ldrh	%2, [%0], #4\n\t"
+			"strb	%2, [%1], #1\n\t"
+			"mov	%2, %2, lsr #8\n\t"
+			"strb	%2, [%1], #1"
 		: "=&r" (offset), "=&r" (buf), "=r" (tmp): "0" (offset), "1" (buf));
 		length -= 2;
 	}
 	while (length > 8) {
 		register unsigned int tmp asm("r2"), tmp2 asm("r3"), tmp3;
 		asm volatile(
-			"ldr%?h	%2, [%0], #4\n\t"
-			"ldr%?h	%4, [%0], #4\n\t"
-			"ldr%?h	%3, [%0], #4\n\t"
-			"orr%?	%2, %2, %4, lsl #16\n\t"
-			"ldr%?h	%4, [%0], #4\n\t"
-			"orr%?	%3, %3, %4, lsl #16\n\t"
-			"stm%?ia	%1!, {%2, %3}"
+			"ldrh	%2, [%0], #4\n\t"
+			"ldrh	%4, [%0], #4\n\t"
+			"ldrh	%3, [%0], #4\n\t"
+			"orr	%2, %2, %4, lsl #16\n\t"
+			"ldrh	%4, [%0], #4\n\t"
+			"orr	%3, %3, %4, lsl #16\n\t"
+			"stmia	%1!, {%2, %3}"
 		: "=&r" (offset), "=&r" (buf), "=r" (tmp), "=r" (tmp2), "=r" (tmp3)
 		: "0" (offset), "1" (buf));
 		length -= 8;
@@ -156,10 +156,10 @@ am_readbuffer(struct net_device *dev, u_int offset, unsigned char *buf, unsigned
 	while (length > 0) {
 		unsigned int tmp;
 		asm volatile(
-			"ldr%?h	%2, [%0], #4\n\t"
-			"str%?b	%2, [%1], #1\n\t"
-			"mov%?	%2, %2, lsr #8\n\t"
-			"str%?b	%2, [%1], #1"
+			"ldrh	%2, [%0], #4\n\t"
+			"strb	%2, [%1], #1\n\t"
+			"mov	%2, %2, lsr #8\n\t"
+			"strb	%2, [%1], #1"
 		: "=&r" (offset), "=&r" (buf), "=r" (tmp) : "0" (offset), "1" (buf));
 		length -= 2;
 	}
diff --git a/drivers/net/ethernet/amd/lance.c b/drivers/net/ethernet/amd/lance.c
index 256f590..3a7ebfd 100644
--- a/drivers/net/ethernet/amd/lance.c
+++ b/drivers/net/ethernet/amd/lance.c
@@ -547,8 +547,8 @@ static int __init lance_probe1(struct net_device *dev, int ioaddr, int irq, int
 	/* Make certain the data structures used by the LANCE are aligned and DMAble. */
 
 	lp = kzalloc(sizeof(*lp), GFP_DMA | GFP_KERNEL);
-	if(lp==NULL)
-		return -ENODEV;
+	if (!lp)
+		return -ENOMEM;
 	if (lance_debug > 6) printk(" (#0x%05lx)", (unsigned long)lp);
 	dev->ml_priv = lp;
 	lp->name = chipname;
diff --git a/drivers/net/ethernet/arc/emac_main.c b/drivers/net/ethernet/arc/emac_main.c
index abe1eab..6446af1 100644
--- a/drivers/net/ethernet/arc/emac_main.c
+++ b/drivers/net/ethernet/arc/emac_main.c
@@ -163,7 +163,7 @@ static void arc_emac_tx_clean(struct net_device *ndev)
 		struct sk_buff *skb = tx_buff->skb;
 		unsigned int info = le32_to_cpu(txbd->info);
 
-		if ((info & FOR_EMAC) || !txbd->data)
+		if ((info & FOR_EMAC) || !txbd->data || !skb)
 			break;
 
 		if (unlikely(info & (DROP | DEFR | LTCL | UFLO))) {
@@ -191,6 +191,7 @@ static void arc_emac_tx_clean(struct net_device *ndev)
 
 		txbd->data = 0;
 		txbd->info = 0;
+		tx_buff->skb = NULL;
 
 		*txbd_dirty = (*txbd_dirty + 1) % TX_BD_NUM;
 	}
@@ -446,6 +447,9 @@ static int arc_emac_open(struct net_device *ndev)
 		*last_rx_bd = (*last_rx_bd + 1) % RX_BD_NUM;
 	}
 
+	priv->txbd_curr = 0;
+	priv->txbd_dirty = 0;
+
 	/* Clean Tx BD's */
 	memset(priv->txbd, 0, TX_RING_SZ);
 
@@ -514,6 +518,64 @@ static void arc_emac_set_rx_mode(struct net_device *ndev)
 }
 
 /**
+ * arc_free_tx_queue - free skb from tx queue
+ * @ndev:	Pointer to the network device.
+ *
+ * This function must be called while EMAC disable
+ */
+static void arc_free_tx_queue(struct net_device *ndev)
+{
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+	unsigned int i;
+
+	for (i = 0; i < TX_BD_NUM; i++) {
+		struct arc_emac_bd *txbd = &priv->txbd[i];
+		struct buffer_state *tx_buff = &priv->tx_buff[i];
+
+		if (tx_buff->skb) {
+			dma_unmap_single(&ndev->dev, dma_unmap_addr(tx_buff, addr),
+					 dma_unmap_len(tx_buff, len), DMA_TO_DEVICE);
+
+			/* return the sk_buff to system */
+			dev_kfree_skb_irq(tx_buff->skb);
+		}
+
+		txbd->info = 0;
+		txbd->data = 0;
+		tx_buff->skb = NULL;
+	}
+}
+
+/**
+ * arc_free_rx_queue - free skb from rx queue
+ * @ndev:	Pointer to the network device.
+ *
+ * This function must be called while EMAC disable
+ */
+static void arc_free_rx_queue(struct net_device *ndev)
+{
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+	unsigned int i;
+
+	for (i = 0; i < RX_BD_NUM; i++) {
+		struct arc_emac_bd *rxbd = &priv->rxbd[i];
+		struct buffer_state *rx_buff = &priv->rx_buff[i];
+
+		if (rx_buff->skb) {
+			dma_unmap_single(&ndev->dev, dma_unmap_addr(rx_buff, addr),
+					dma_unmap_len(rx_buff, len), DMA_FROM_DEVICE);
+
+			/* return the sk_buff to system */
+			dev_kfree_skb_irq(rx_buff->skb);
+		}
+
+		rxbd->info = 0;
+		rxbd->data = 0;
+		rx_buff->skb = NULL;
+	}
+}
+
+/**
  * arc_emac_stop - Close the network device.
  * @ndev:	Pointer to the network device.
  *
@@ -534,6 +596,10 @@ static int arc_emac_stop(struct net_device *ndev)
 	/* Disable EMAC */
 	arc_reg_clr(priv, R_CTRL, EN_MASK);
 
+	/* Return the sk_buff to system */
+	arc_free_tx_queue(ndev);
+	arc_free_rx_queue(ndev);
+
 	return 0;
 }
 
@@ -610,7 +676,6 @@ static int arc_emac_tx(struct sk_buff *skb, struct net_device *ndev)
 	dma_unmap_addr_set(&priv->tx_buff[*txbd_curr], addr, addr);
 	dma_unmap_len_set(&priv->tx_buff[*txbd_curr], len, len);
 
-	priv->tx_buff[*txbd_curr].skb = skb;
 	priv->txbd[*txbd_curr].data = cpu_to_le32(addr);
 
 	/* Make sure pointer to data buffer is set */
@@ -620,6 +685,11 @@ static int arc_emac_tx(struct sk_buff *skb, struct net_device *ndev)
 
 	*info = cpu_to_le32(FOR_EMAC | FIRST_OR_LAST_MASK | len);
 
+	/* Make sure info word is set */
+	wmb();
+
+	priv->tx_buff[*txbd_curr].skb = skb;
+
 	/* Increment index to point to the next BD */
 	*txbd_curr = (*txbd_curr + 1) % TX_BD_NUM;
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index d946bba..1fb8010 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -6185,26 +6185,80 @@ static int bnx2x_format_ver(u32 num, u8 *str, u16 *len)
 		shift -= 4;
 		digit = ((num & mask) >> shift);
 		if (digit == 0 && remove_leading_zeros) {
-			mask = mask >> 4;
-			continue;
-		} else if (digit < 0xa)
-			*str_ptr = digit + '0';
-		else
-			*str_ptr = digit - 0xa + 'a';
-		remove_leading_zeros = 0;
-		str_ptr++;
-		(*len)--;
+			*str_ptr = '0';
+		} else {
+			if (digit < 0xa)
+				*str_ptr = digit + '0';
+			else
+				*str_ptr = digit - 0xa + 'a';
+
+			remove_leading_zeros = 0;
+			str_ptr++;
+			(*len)--;
+		}
 		mask = mask >> 4;
 		if (shift == 4*4) {
+			if (remove_leading_zeros) {
+				str_ptr++;
+				(*len)--;
+			}
 			*str_ptr = '.';
 			str_ptr++;
 			(*len)--;
 			remove_leading_zeros = 1;
 		}
 	}
+	if (remove_leading_zeros)
+		(*len)--;
 	return 0;
 }
 
+static int bnx2x_3_seq_format_ver(u32 num, u8 *str, u16 *len)
+{
+	u8 *str_ptr = str;
+	u32 mask = 0x00f00000;
+	u8 shift = 8*3;
+	u8 digit;
+	u8 remove_leading_zeros = 1;
+
+	if (*len < 10) {
+		/* Need more than 10chars for this format */
+		*str_ptr = '\0';
+		(*len)--;
+		return -EINVAL;
+	}
+
+	while (shift > 0) {
+		shift -= 4;
+		digit = ((num & mask) >> shift);
+		if (digit == 0 && remove_leading_zeros) {
+			*str_ptr = '0';
+		} else {
+			if (digit < 0xa)
+				*str_ptr = digit + '0';
+			else
+				*str_ptr = digit - 0xa + 'a';
+
+			remove_leading_zeros = 0;
+			str_ptr++;
+			(*len)--;
+		}
+		mask = mask >> 4;
+		if ((shift == 4*4) || (shift == 4*2)) {
+			if (remove_leading_zeros) {
+				str_ptr++;
+				(*len)--;
+			}
+			*str_ptr = '.';
+			str_ptr++;
+			(*len)--;
+			remove_leading_zeros = 1;
+		}
+	}
+	if (remove_leading_zeros)
+		(*len)--;
+	return 0;
+}
 
 static int bnx2x_null_format_ver(u32 spirom_ver, u8 *str, u16 *len)
 {
@@ -9677,8 +9731,9 @@ static void bnx2x_save_848xx_spirom_version(struct bnx2x_phy *phy,
 
 	if (bnx2x_is_8483x_8485x(phy)) {
 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD, 0x400f, &fw_ver1);
-		bnx2x_save_spirom_version(bp, port, fw_ver1 & 0xfff,
-				phy->ver_addr);
+		if (phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858)
+			fw_ver1 &= 0xfff;
+		bnx2x_save_spirom_version(bp, port, fw_ver1, phy->ver_addr);
 	} else {
 		/* For 32-bit registers in 848xx, access via MDIO2ARM i/f. */
 		/* (1) set reg 0xc200_0014(SPI_BRIDGE_CTRL_2) to 0x03000000 */
@@ -9732,16 +9787,32 @@ static void bnx2x_save_848xx_spirom_version(struct bnx2x_phy *phy,
 static void bnx2x_848xx_set_led(struct bnx2x *bp,
 				struct bnx2x_phy *phy)
 {
-	u16 val, offset, i;
+	u16 val, led3_blink_rate, offset, i;
 	static struct bnx2x_reg_set reg_set[] = {
 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED1_MASK, 0x0080},
 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED2_MASK, 0x0018},
 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED3_MASK, 0x0006},
-		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED3_BLINK, 0x0000},
 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_84823_CTL_SLOW_CLK_CNT_HIGH,
 			MDIO_PMA_REG_84823_BLINK_RATE_VAL_15P9HZ},
 		{MDIO_AN_DEVAD, 0xFFFB, 0xFFFD}
 	};
+
+	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858) {
+		/* Set LED5 source */
+		bnx2x_cl45_write(bp, phy,
+				 MDIO_PMA_DEVAD,
+				 MDIO_PMA_REG_8481_LED5_MASK,
+				 0x90);
+		led3_blink_rate = 0x000f;
+	} else {
+		led3_blink_rate = 0x0000;
+	}
+	/* Set LED3 BLINK */
+	bnx2x_cl45_write(bp, phy,
+			 MDIO_PMA_DEVAD,
+			 MDIO_PMA_REG_8481_LED3_BLINK,
+			 led3_blink_rate);
+
 	/* PHYC_CTL_LED_CTL */
 	bnx2x_cl45_read(bp, phy,
 			MDIO_PMA_DEVAD,
@@ -9749,6 +9820,9 @@ static void bnx2x_848xx_set_led(struct bnx2x *bp,
 	val &= 0xFE00;
 	val |= 0x0092;
 
+	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858)
+		val |= 2 << 12; /* LED5 ON based on source */
+
 	bnx2x_cl45_write(bp, phy,
 			 MDIO_PMA_DEVAD,
 			 MDIO_PMA_REG_8481_LINK_SIGNAL, val);
@@ -9762,10 +9836,17 @@ static void bnx2x_848xx_set_led(struct bnx2x *bp,
 	else
 		offset = MDIO_PMA_REG_84823_CTL_LED_CTL_1;
 
-	/* stretch_en for LED3*/
+	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858)
+		val = MDIO_PMA_REG_84858_ALLOW_GPHY_ACT |
+		      MDIO_PMA_REG_84823_LED3_STRETCH_EN;
+	else
+		val = MDIO_PMA_REG_84823_LED3_STRETCH_EN;
+
+	/* stretch_en for LEDs */
 	bnx2x_cl45_read_or_write(bp, phy,
-				 MDIO_PMA_DEVAD, offset,
-				 MDIO_PMA_REG_84823_LED3_STRETCH_EN);
+				 MDIO_PMA_DEVAD,
+				 offset,
+				 val);
 }
 
 static void bnx2x_848xx_specific_func(struct bnx2x_phy *phy,
@@ -9775,7 +9856,7 @@ static void bnx2x_848xx_specific_func(struct bnx2x_phy *phy,
 	struct bnx2x *bp = params->bp;
 	switch (action) {
 	case PHY_INIT:
-		if (!bnx2x_is_8483x_8485x(phy)) {
+		if (bnx2x_is_8483x_8485x(phy)) {
 			/* Save spirom version */
 			bnx2x_save_848xx_spirom_version(phy, bp, params->port);
 		}
@@ -10036,15 +10117,20 @@ static int bnx2x_84858_cmd_hdlr(struct bnx2x_phy *phy,
 
 static int bnx2x_84833_cmd_hdlr(struct bnx2x_phy *phy,
 				struct link_params *params, u16 fw_cmd,
-				u16 cmd_args[], int argc)
+				u16 cmd_args[], int argc, int process)
 {
 	int idx;
 	u16 val;
 	struct bnx2x *bp = params->bp;
-	/* Write CMD_OPEN_OVERRIDE to STATUS reg */
-	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
-			MDIO_848xx_CMD_HDLR_STATUS,
-			PHY84833_STATUS_CMD_OPEN_OVERRIDE);
+	int rc = 0;
+
+	if (process == PHY84833_MB_PROCESS2) {
+		/* Write CMD_OPEN_OVERRIDE to STATUS reg */
+		bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
+				 MDIO_848xx_CMD_HDLR_STATUS,
+				 PHY84833_STATUS_CMD_OPEN_OVERRIDE);
+	}
+
 	for (idx = 0; idx < PHY848xx_CMDHDLR_WAIT; idx++) {
 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
 				MDIO_848xx_CMD_HDLR_STATUS, &val);
@@ -10054,15 +10140,27 @@ static int bnx2x_84833_cmd_hdlr(struct bnx2x_phy *phy,
 	}
 	if (idx >= PHY848xx_CMDHDLR_WAIT) {
 		DP(NETIF_MSG_LINK, "FW cmd: FW not ready.\n");
+		/* if the status is CMD_COMPLETE_PASS or CMD_COMPLETE_ERROR
+		 * clear the status to CMD_CLEAR_COMPLETE
+		 */
+		if (val == PHY84833_STATUS_CMD_COMPLETE_PASS ||
+		    val == PHY84833_STATUS_CMD_COMPLETE_ERROR) {
+			bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
+					 MDIO_848xx_CMD_HDLR_STATUS,
+					 PHY84833_STATUS_CMD_CLEAR_COMPLETE);
+		}
 		return -EINVAL;
 	}
-
-	/* Prepare argument(s) and issue command */
-	for (idx = 0; idx < argc; idx++) {
-		bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
-				MDIO_848xx_CMD_HDLR_DATA1 + idx,
-				cmd_args[idx]);
+	if (process == PHY84833_MB_PROCESS1 ||
+	    process == PHY84833_MB_PROCESS2) {
+		/* Prepare argument(s) */
+		for (idx = 0; idx < argc; idx++) {
+			bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
+					 MDIO_848xx_CMD_HDLR_DATA1 + idx,
+					 cmd_args[idx]);
+		}
 	}
+
 	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
 			MDIO_848xx_CMD_HDLR_COMMAND, fw_cmd);
 	for (idx = 0; idx < PHY848xx_CMDHDLR_WAIT; idx++) {
@@ -10076,24 +10174,30 @@ static int bnx2x_84833_cmd_hdlr(struct bnx2x_phy *phy,
 	if ((idx >= PHY848xx_CMDHDLR_WAIT) ||
 	    (val == PHY84833_STATUS_CMD_COMPLETE_ERROR)) {
 		DP(NETIF_MSG_LINK, "FW cmd failed.\n");
-		return -EINVAL;
+		rc = -EINVAL;
 	}
-	/* Gather returning data */
-	for (idx = 0; idx < argc; idx++) {
-		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
-				MDIO_848xx_CMD_HDLR_DATA1 + idx,
-				&cmd_args[idx]);
+	if (process == PHY84833_MB_PROCESS3 && rc == 0) {
+		/* Gather returning data */
+		for (idx = 0; idx < argc; idx++) {
+			bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
+					MDIO_848xx_CMD_HDLR_DATA1 + idx,
+					&cmd_args[idx]);
+		}
 	}
-	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
-			MDIO_848xx_CMD_HDLR_STATUS,
-			PHY84833_STATUS_CMD_CLEAR_COMPLETE);
-	return 0;
+	if (val == PHY84833_STATUS_CMD_COMPLETE_ERROR ||
+	    val == PHY84833_STATUS_CMD_COMPLETE_PASS) {
+		bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
+				 MDIO_848xx_CMD_HDLR_STATUS,
+				 PHY84833_STATUS_CMD_CLEAR_COMPLETE);
+	}
+	return rc;
 }
 
 static int bnx2x_848xx_cmd_hdlr(struct bnx2x_phy *phy,
 				struct link_params *params,
 				u16 fw_cmd,
-				u16 cmd_args[], int argc)
+					   u16 cmd_args[], int argc,
+					   int process)
 {
 	struct bnx2x *bp = params->bp;
 
@@ -10106,7 +10210,7 @@ static int bnx2x_848xx_cmd_hdlr(struct bnx2x_phy *phy,
 					    argc);
 	} else {
 		return bnx2x_84833_cmd_hdlr(phy, params, fw_cmd, cmd_args,
-					    argc);
+					    argc, process);
 	}
 }
 
@@ -10133,7 +10237,7 @@ static int bnx2x_848xx_pair_swap_cfg(struct bnx2x_phy *phy,
 
 	status = bnx2x_848xx_cmd_hdlr(phy, params,
 				      PHY848xx_CMD_SET_PAIR_SWAP, data,
-				      PHY848xx_CMDHDLR_MAX_ARGS);
+				      2, PHY84833_MB_PROCESS2);
 	if (status == 0)
 		DP(NETIF_MSG_LINK, "Pairswap OK, val=0x%x\n", data[1]);
 
@@ -10222,8 +10326,8 @@ static int bnx2x_8483x_disable_eee(struct bnx2x_phy *phy,
 	DP(NETIF_MSG_LINK, "Don't Advertise 10GBase-T EEE\n");
 
 	/* Prevent Phy from working in EEE and advertising it */
-	rc = bnx2x_848xx_cmd_hdlr(phy, params,
-				  PHY848xx_CMD_SET_EEE_MODE, &cmd_args, 1);
+	rc = bnx2x_848xx_cmd_hdlr(phy, params, PHY848xx_CMD_SET_EEE_MODE,
+				  &cmd_args, 1, PHY84833_MB_PROCESS1);
 	if (rc) {
 		DP(NETIF_MSG_LINK, "EEE disable failed.\n");
 		return rc;
@@ -10240,8 +10344,8 @@ static int bnx2x_8483x_enable_eee(struct bnx2x_phy *phy,
 	struct bnx2x *bp = params->bp;
 	u16 cmd_args = 1;
 
-	rc = bnx2x_848xx_cmd_hdlr(phy, params,
-				  PHY848xx_CMD_SET_EEE_MODE, &cmd_args, 1);
+	rc = bnx2x_848xx_cmd_hdlr(phy, params, PHY848xx_CMD_SET_EEE_MODE,
+				  &cmd_args, 1, PHY84833_MB_PROCESS1);
 	if (rc) {
 		DP(NETIF_MSG_LINK, "EEE enable failed.\n");
 		return rc;
@@ -10362,7 +10466,7 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
 		cmd_args[3] = PHY84833_CONSTANT_LATENCY;
 		rc = bnx2x_848xx_cmd_hdlr(phy, params,
 					  PHY848xx_CMD_SET_EEE_MODE, cmd_args,
-					  PHY848xx_CMDHDLR_MAX_ARGS);
+					  4, PHY84833_MB_PROCESS1);
 		if (rc)
 			DP(NETIF_MSG_LINK, "Cfg AutogrEEEn failed.\n");
 	}
@@ -10416,6 +10520,32 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
 		vars->eee_status &= ~SHMEM_EEE_SUPPORTED_MASK;
 	}
 
+	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) {
+		/* Additional settings for jumbo packets in 1000BASE-T mode */
+		/* Allow rx extended length */
+		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
+				MDIO_AN_REG_8481_AUX_CTRL, &val);
+		val |= 0x4000;
+		bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
+				 MDIO_AN_REG_8481_AUX_CTRL, val);
+		/* TX FIFO Elasticity LSB */
+		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
+				MDIO_AN_REG_8481_1G_100T_EXT_CTRL, &val);
+		val |= 0x1;
+		bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
+				 MDIO_AN_REG_8481_1G_100T_EXT_CTRL, val);
+		/* TX FIFO Elasticity MSB */
+		/* Enable expansion register 0x46 (Pattern Generator status) */
+		bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
+				 MDIO_AN_REG_8481_EXPANSION_REG_ACCESS, 0xf46);
+
+		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
+				MDIO_AN_REG_8481_EXPANSION_REG_RD_RW, &val);
+		val |= 0x4000;
+		bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
+				 MDIO_AN_REG_8481_EXPANSION_REG_RD_RW, val);
+	}
+
 	if (bnx2x_is_8483x_8485x(phy)) {
 		/* Bring PHY out of super isolate mode as the final step. */
 		bnx2x_cl45_read_and_write(bp, phy,
@@ -10555,6 +10685,17 @@ static u8 bnx2x_848xx_read_status(struct bnx2x_phy *phy,
 	return link_up;
 }
 
+static int bnx2x_8485x_format_ver(u32 raw_ver, u8 *str, u16 *len)
+{
+	int status = 0;
+	u32 num;
+
+	num = ((raw_ver & 0xF80) >> 7) << 16 | ((raw_ver & 0x7F) << 8) |
+	      ((raw_ver & 0xF000) >> 12);
+	status = bnx2x_3_seq_format_ver(num, str, len);
+	return status;
+}
+
 static int bnx2x_848xx_format_ver(u32 raw_ver, u8 *str, u16 *len)
 {
 	int status = 0;
@@ -10651,10 +10792,25 @@ static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy,
 					0x0);
 
 		} else {
+			/* LED 1 OFF */
 			bnx2x_cl45_write(bp, phy,
 					 MDIO_PMA_DEVAD,
 					 MDIO_PMA_REG_8481_LED1_MASK,
 					 0x0);
+
+			if (phy->type ==
+				PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858) {
+				/* LED 2 OFF */
+				bnx2x_cl45_write(bp, phy,
+						 MDIO_PMA_DEVAD,
+						 MDIO_PMA_REG_8481_LED2_MASK,
+						 0x0);
+				/* LED 3 OFF */
+				bnx2x_cl45_write(bp, phy,
+						 MDIO_PMA_DEVAD,
+						 MDIO_PMA_REG_8481_LED3_MASK,
+						 0x0);
+			}
 		}
 		break;
 	case LED_MODE_FRONT_PANEL_OFF:
@@ -10713,6 +10869,19 @@ static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy,
 						 MDIO_PMA_REG_8481_SIGNAL_MASK,
 						 0x0);
 			}
+			if (phy->type ==
+				PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858) {
+				/* LED 2 OFF */
+				bnx2x_cl45_write(bp, phy,
+						 MDIO_PMA_DEVAD,
+						 MDIO_PMA_REG_8481_LED2_MASK,
+						 0x0);
+				/* LED 3 OFF */
+				bnx2x_cl45_write(bp, phy,
+						 MDIO_PMA_DEVAD,
+						 MDIO_PMA_REG_8481_LED3_MASK,
+						 0x0);
+			}
 		}
 		break;
 	case LED_MODE_ON:
@@ -10776,6 +10945,25 @@ static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy,
 						params->port*4,
 						NIG_MASK_MI_INT);
 				}
+			}
+			if (phy->type ==
+			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858) {
+				/* Tell LED3 to constant on */
+				bnx2x_cl45_read(bp, phy,
+						MDIO_PMA_DEVAD,
+						MDIO_PMA_REG_8481_LINK_SIGNAL,
+						&val);
+				val &= ~(7<<6);
+				val |= (2<<6);  /* A83B[8:6]= 2 */
+				bnx2x_cl45_write(bp, phy,
+						 MDIO_PMA_DEVAD,
+						 MDIO_PMA_REG_8481_LINK_SIGNAL,
+						 val);
+				bnx2x_cl45_write(bp, phy,
+						 MDIO_PMA_DEVAD,
+						 MDIO_PMA_REG_8481_LED3_MASK,
+						 0x20);
+			} else {
 				bnx2x_cl45_write(bp, phy,
 						 MDIO_PMA_DEVAD,
 						 MDIO_PMA_REG_8481_SIGNAL_MASK,
@@ -10854,6 +11042,17 @@ static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy,
 					 MDIO_PMA_REG_8481_LINK_SIGNAL,
 					 val);
 			if (phy->type ==
+			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858) {
+				bnx2x_cl45_write(bp, phy,
+						 MDIO_PMA_DEVAD,
+						 MDIO_PMA_REG_8481_LED2_MASK,
+						 0x18);
+				bnx2x_cl45_write(bp, phy,
+						 MDIO_PMA_DEVAD,
+						 MDIO_PMA_REG_8481_LED3_MASK,
+						 0x06);
+			}
+			if (phy->type ==
 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
 				/* Restore LED4 source to external link,
 				 * and re-enable interrupts.
@@ -11982,7 +12181,7 @@ static const struct bnx2x_phy phy_84858 = {
 	.read_status	= (read_status_t)bnx2x_848xx_read_status,
 	.link_reset	= (link_reset_t)bnx2x_848x3_link_reset,
 	.config_loopback = (config_loopback_t)NULL,
-	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
+	.format_fw_ver	= (format_fw_ver_t)bnx2x_8485x_format_ver,
 	.hw_reset	= (hw_reset_t)bnx2x_84833_hw_reset_phy,
 	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
 	.phy_specific_func = (phy_specific_func_t)bnx2x_848xx_specific_func
@@ -13807,8 +14006,10 @@ void bnx2x_period_func(struct link_params *params, struct link_vars *vars)
 	if (CHIP_IS_E3(bp)) {
 		struct bnx2x_phy *phy = &params->phy[INT_PHY];
 		bnx2x_set_aer_mmd(params, phy);
-		if ((phy->supported & SUPPORTED_20000baseKR2_Full) &&
-		    (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_20G))
+		if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
+		     (phy->speed_cap_mask &
+		      PORT_HW_CFG_SPEED_CAPABILITY_D0_20G)) ||
+		    (phy->req_line_speed == SPEED_20000))
 			bnx2x_check_kr2_wa(params, vars, phy);
 		bnx2x_check_over_curr(params, vars);
 		if (vars->rx_tx_asic_rst)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
index 4dead49..a43dea2 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
@@ -7296,6 +7296,8 @@ Theotherbitsarereservedandshouldbezero*/
 #define MDIO_PMA_REG_84823_CTL_LED_CTL_1			0xa8e3
 #define MDIO_PMA_REG_84833_CTL_LED_CTL_1			0xa8ec
 #define MDIO_PMA_REG_84823_LED3_STRETCH_EN			0x0080
+/* BCM84858 only */
+#define MDIO_PMA_REG_84858_ALLOW_GPHY_ACT			0x8000
 
 /* BCM84833 only */
 #define MDIO_84833_TOP_CFG_FW_REV			0x400f
@@ -7337,6 +7339,10 @@ Theotherbitsarereservedandshouldbezero*/
 #define PHY84833_STATUS_CMD_NOT_OPEN_FOR_CMDS		0x0040
 #define PHY84833_STATUS_CMD_CLEAR_COMPLETE		0x0080
 #define PHY84833_STATUS_CMD_OPEN_OVERRIDE		0xa5a5
+/* Mailbox Process */
+#define PHY84833_MB_PROCESS1				1
+#define PHY84833_MB_PROCESS2				2
+#define PHY84833_MB_PROCESS3				3
 
 /* Mailbox status set used by 84858 only */
 #define PHY84858_STATUS_CMD_RECEIVED			0x0001
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 5dc89e5..8ab000d 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -69,7 +69,7 @@ MODULE_VERSION(DRV_MODULE_VERSION);
 #define BNXT_RX_DMA_OFFSET NET_SKB_PAD
 #define BNXT_RX_COPY_THRESH 256
 
-#define BNXT_TX_PUSH_THRESH 92
+#define BNXT_TX_PUSH_THRESH 164
 
 enum board_idx {
 	BCM57301,
@@ -223,11 +223,12 @@ static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	}
 
 	if (free_size == bp->tx_ring_size && length <= bp->tx_push_thresh) {
-		struct tx_push_bd *push = txr->tx_push;
-		struct tx_bd *tx_push = &push->txbd1;
-		struct tx_bd_ext *tx_push1 = &push->txbd2;
-		void *pdata = tx_push1 + 1;
-		int j;
+		struct tx_push_buffer *tx_push_buf = txr->tx_push;
+		struct tx_push_bd *tx_push = &tx_push_buf->push_bd;
+		struct tx_bd_ext *tx_push1 = &tx_push->txbd2;
+		void *pdata = tx_push_buf->data;
+		u64 *end;
+		int j, push_len;
 
 		/* Set COAL_NOW to be ready quickly for the next push */
 		tx_push->tx_bd_len_flags_type =
@@ -247,6 +248,9 @@ static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		tx_push1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags);
 		tx_push1->tx_bd_cfa_action = cpu_to_le32(cfa_action);
 
+		end = PTR_ALIGN(pdata + length + 1, 8) - 1;
+		*end = 0;
+
 		skb_copy_from_linear_data(skb, pdata, len);
 		pdata += len;
 		for (j = 0; j < last_frag; j++) {
@@ -261,22 +265,29 @@ static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
 			pdata += skb_frag_size(frag);
 		}
 
-		memcpy(txbd, tx_push, sizeof(*txbd));
+		txbd->tx_bd_len_flags_type = tx_push->tx_bd_len_flags_type;
+		txbd->tx_bd_haddr = txr->data_mapping;
 		prod = NEXT_TX(prod);
 		txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
 		memcpy(txbd, tx_push1, sizeof(*txbd));
 		prod = NEXT_TX(prod);
-		push->doorbell =
+		tx_push->doorbell =
 			cpu_to_le32(DB_KEY_TX_PUSH | DB_LONG_TX_PUSH | prod);
 		txr->tx_prod = prod;
 
 		netdev_tx_sent_queue(txq, skb->len);
 
-		__iowrite64_copy(txr->tx_doorbell, push,
-				 (length + sizeof(*push) + 8) / 8);
+		push_len = (length + sizeof(*tx_push) + 7) / 8;
+		if (push_len > 16) {
+			__iowrite64_copy(txr->tx_doorbell, tx_push_buf, 16);
+			__iowrite64_copy(txr->tx_doorbell + 4, tx_push_buf + 1,
+					 push_len - 16);
+		} else {
+			__iowrite64_copy(txr->tx_doorbell, tx_push_buf,
+					 push_len);
+		}
 
 		tx_buf->is_push = 1;
-
 		goto tx_done;
 	}
 
@@ -1753,7 +1764,7 @@ static int bnxt_alloc_tx_rings(struct bnxt *bp)
 		push_size  = L1_CACHE_ALIGN(sizeof(struct tx_push_bd) +
 					bp->tx_push_thresh);
 
-		if (push_size > 128) {
+		if (push_size > 256) {
 			push_size = 0;
 			bp->tx_push_thresh = 0;
 		}
@@ -1772,7 +1783,6 @@ static int bnxt_alloc_tx_rings(struct bnxt *bp)
 			return rc;
 
 		if (bp->tx_push_size) {
-			struct tx_bd *txbd;
 			dma_addr_t mapping;
 
 			/* One pre-allocated DMA buffer to backup
@@ -1786,13 +1796,11 @@ static int bnxt_alloc_tx_rings(struct bnxt *bp)
 			if (!txr->tx_push)
 				return -ENOMEM;
 
-			txbd = &txr->tx_push->txbd1;
-
 			mapping = txr->tx_push_mapping +
 				sizeof(struct tx_push_bd);
-			txbd->tx_bd_haddr = cpu_to_le64(mapping);
+			txr->data_mapping = cpu_to_le64(mapping);
 
-			memset(txbd + 1, 0, sizeof(struct tx_bd_ext));
+			memset(txr->tx_push, 0, sizeof(struct tx_push_bd));
 		}
 		ring->queue_id = bp->q_info[j].queue_id;
 		if (i % bp->tx_nr_rings_per_tc == (bp->tx_nr_rings_per_tc - 1))
@@ -4546,20 +4554,18 @@ static int bnxt_update_phy_setting(struct bnxt *bp)
 	if (!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) &&
 	    link_info->force_pause_setting != link_info->req_flow_ctrl)
 		update_pause = true;
-	if (link_info->req_duplex != link_info->duplex_setting)
-		update_link = true;
 	if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) {
 		if (BNXT_AUTO_MODE(link_info->auto_mode))
 			update_link = true;
 		if (link_info->req_link_speed != link_info->force_link_speed)
 			update_link = true;
+		if (link_info->req_duplex != link_info->duplex_setting)
+			update_link = true;
 	} else {
 		if (link_info->auto_mode == BNXT_LINK_AUTO_NONE)
 			update_link = true;
 		if (link_info->advertising != link_info->auto_link_speeds)
 			update_link = true;
-		if (link_info->req_link_speed != link_info->auto_link_speed)
-			update_link = true;
 	}
 
 	if (update_link)
@@ -4636,7 +4642,7 @@ static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
 	if (link_re_init) {
 		rc = bnxt_update_phy_setting(bp);
 		if (rc)
-			goto open_err;
+			netdev_warn(bp->dev, "failed to update phy settings\n");
 	}
 
 	if (irq_re_init) {
@@ -4654,6 +4660,7 @@ static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
 	/* Enable TX queues */
 	bnxt_tx_enable(bp);
 	mod_timer(&bp->timer, jiffies + bp->current_interval);
+	bnxt_update_link(bp, true);
 
 	return 0;
 
@@ -5670,22 +5677,16 @@ static int bnxt_probe_phy(struct bnxt *bp)
 	}
 
 	/*initialize the ethool setting copy with NVM settings */
-	if (BNXT_AUTO_MODE(link_info->auto_mode))
-		link_info->autoneg |= BNXT_AUTONEG_SPEED;
-
-	if (link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) {
-		if (link_info->auto_pause_setting == BNXT_LINK_PAUSE_BOTH)
-			link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
+	if (BNXT_AUTO_MODE(link_info->auto_mode)) {
+		link_info->autoneg = BNXT_AUTONEG_SPEED |
+				     BNXT_AUTONEG_FLOW_CTRL;
+		link_info->advertising = link_info->auto_link_speeds;
 		link_info->req_flow_ctrl = link_info->auto_pause_setting;
-	} else if (link_info->force_pause_setting & BNXT_LINK_PAUSE_BOTH) {
+	} else {
+		link_info->req_link_speed = link_info->force_link_speed;
+		link_info->req_duplex = link_info->duplex_setting;
 		link_info->req_flow_ctrl = link_info->force_pause_setting;
 	}
-	link_info->req_duplex = link_info->duplex_setting;
-	if (link_info->autoneg & BNXT_AUTONEG_SPEED)
-		link_info->req_link_speed = link_info->auto_link_speed;
-	else
-		link_info->req_link_speed = link_info->force_link_speed;
-	link_info->advertising = link_info->auto_link_speeds;
 	snprintf(phy_ver, PHY_VER_STR_LEN, " ph %d.%d.%d",
 		 link_info->phy_ver[0],
 		 link_info->phy_ver[1],
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 8af3ca8..2be51b3 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -411,8 +411,8 @@ struct rx_tpa_end_cmp_ext {
 
 #define BNXT_NUM_TESTS(bp)	0
 
-#define BNXT_DEFAULT_RX_RING_SIZE	1023
-#define BNXT_DEFAULT_TX_RING_SIZE	512
+#define BNXT_DEFAULT_RX_RING_SIZE	511
+#define BNXT_DEFAULT_TX_RING_SIZE	511
 
 #define MAX_TPA		64
 
@@ -523,10 +523,16 @@ struct bnxt_ring_struct {
 
 struct tx_push_bd {
 	__le32			doorbell;
-	struct tx_bd		txbd1;
+	__le32			tx_bd_len_flags_type;
+	u32			tx_bd_opaque;
 	struct tx_bd_ext	txbd2;
 };
 
+struct tx_push_buffer {
+	struct tx_push_bd	push_bd;
+	u32			data[25];
+};
+
 struct bnxt_tx_ring_info {
 	struct bnxt_napi	*bnapi;
 	u16			tx_prod;
@@ -538,8 +544,9 @@ struct bnxt_tx_ring_info {
 
 	dma_addr_t		tx_desc_mapping[MAX_TX_PAGES];
 
-	struct tx_push_bd	*tx_push;
+	struct tx_push_buffer	*tx_push;
 	dma_addr_t		tx_push_mapping;
+	__le64			data_mapping;
 
 #define BNXT_DEV_STATE_CLOSING	0x1
 	u32			dev_state;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 922b898..3238817 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -486,15 +486,8 @@ static u32 bnxt_fw_to_ethtool_support_spds(struct bnxt_link_info *link_info)
 		speed_mask |= SUPPORTED_2500baseX_Full;
 	if (fw_speeds & BNXT_LINK_SPEED_MSK_10GB)
 		speed_mask |= SUPPORTED_10000baseT_Full;
-	/* TODO: support 25GB, 50GB with different cable type */
-	if (fw_speeds & BNXT_LINK_SPEED_MSK_20GB)
-		speed_mask |= SUPPORTED_20000baseMLD2_Full |
-			SUPPORTED_20000baseKR2_Full;
 	if (fw_speeds & BNXT_LINK_SPEED_MSK_40GB)
-		speed_mask |= SUPPORTED_40000baseKR4_Full |
-			SUPPORTED_40000baseCR4_Full |
-			SUPPORTED_40000baseSR4_Full |
-			SUPPORTED_40000baseLR4_Full;
+		speed_mask |= SUPPORTED_40000baseCR4_Full;
 
 	return speed_mask;
 }
@@ -514,15 +507,8 @@ static u32 bnxt_fw_to_ethtool_advertised_spds(struct bnxt_link_info *link_info)
 		speed_mask |= ADVERTISED_2500baseX_Full;
 	if (fw_speeds & BNXT_LINK_SPEED_MSK_10GB)
 		speed_mask |= ADVERTISED_10000baseT_Full;
-	/* TODO: how to advertise 20, 25, 40, 50GB with different cable type ?*/
-	if (fw_speeds & BNXT_LINK_SPEED_MSK_20GB)
-		speed_mask |= ADVERTISED_20000baseMLD2_Full |
-			      ADVERTISED_20000baseKR2_Full;
 	if (fw_speeds & BNXT_LINK_SPEED_MSK_40GB)
-		speed_mask |= ADVERTISED_40000baseKR4_Full |
-			      ADVERTISED_40000baseCR4_Full |
-			      ADVERTISED_40000baseSR4_Full |
-			      ADVERTISED_40000baseLR4_Full;
+		speed_mask |= ADVERTISED_40000baseCR4_Full;
 	return speed_mask;
 }
 
@@ -557,11 +543,12 @@ static int bnxt_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 	u16 ethtool_speed;
 
 	cmd->supported = bnxt_fw_to_ethtool_support_spds(link_info);
+	cmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
 
 	if (link_info->auto_link_speeds)
 		cmd->supported |= SUPPORTED_Autoneg;
 
-	if (BNXT_AUTO_MODE(link_info->auto_mode)) {
+	if (link_info->autoneg) {
 		cmd->advertising =
 			bnxt_fw_to_ethtool_advertised_spds(link_info);
 		cmd->advertising |= ADVERTISED_Autoneg;
@@ -570,28 +557,16 @@ static int bnxt_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 		cmd->autoneg = AUTONEG_DISABLE;
 		cmd->advertising = 0;
 	}
-	if (link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) {
+	if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) {
 		if ((link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) ==
 		    BNXT_LINK_PAUSE_BOTH) {
 			cmd->advertising |= ADVERTISED_Pause;
-			cmd->supported |= SUPPORTED_Pause;
 		} else {
 			cmd->advertising |= ADVERTISED_Asym_Pause;
-			cmd->supported |= SUPPORTED_Asym_Pause;
 			if (link_info->auto_pause_setting &
 			    BNXT_LINK_PAUSE_RX)
 				cmd->advertising |= ADVERTISED_Pause;
 		}
-	} else if (link_info->force_pause_setting & BNXT_LINK_PAUSE_BOTH) {
-		if ((link_info->force_pause_setting & BNXT_LINK_PAUSE_BOTH) ==
-		    BNXT_LINK_PAUSE_BOTH) {
-			cmd->supported |= SUPPORTED_Pause;
-		} else {
-			cmd->supported |= SUPPORTED_Asym_Pause;
-			if (link_info->force_pause_setting &
-			    BNXT_LINK_PAUSE_RX)
-				cmd->supported |= SUPPORTED_Pause;
-		}
 	}
 
 	cmd->port = PORT_NONE;
@@ -670,6 +645,9 @@ static u16 bnxt_get_fw_auto_link_speeds(u32 advertising)
 	if (advertising & ADVERTISED_10000baseT_Full)
 		fw_speed_mask |= BNXT_LINK_SPEED_MSK_10GB;
 
+	if (advertising & ADVERTISED_40000baseCR4_Full)
+		fw_speed_mask |= BNXT_LINK_SPEED_MSK_40GB;
+
 	return fw_speed_mask;
 }
 
@@ -729,7 +707,7 @@ static int bnxt_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 		speed = ethtool_cmd_speed(cmd);
 		link_info->req_link_speed = bnxt_get_fw_speed(dev, speed);
 		link_info->req_duplex = BNXT_LINK_DUPLEX_FULL;
-		link_info->autoneg &= ~BNXT_AUTONEG_SPEED;
+		link_info->autoneg = 0;
 		link_info->advertising = 0;
 	}
 
@@ -748,8 +726,7 @@ static void bnxt_get_pauseparam(struct net_device *dev,
 
 	if (BNXT_VF(bp))
 		return;
-	epause->autoneg = !!(link_info->auto_pause_setting &
-			     BNXT_LINK_PAUSE_BOTH);
+	epause->autoneg = !!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL);
 	epause->rx_pause = ((link_info->pause & BNXT_LINK_PAUSE_RX) != 0);
 	epause->tx_pause = ((link_info->pause & BNXT_LINK_PAUSE_TX) != 0);
 }
@@ -765,6 +742,9 @@ static int bnxt_set_pauseparam(struct net_device *dev,
 		return rc;
 
 	if (epause->autoneg) {
+		if (!(link_info->autoneg & BNXT_AUTONEG_SPEED))
+			return -EINVAL;
+
 		link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
 		link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_BOTH;
 	} else {
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index b15a60d..d7e01a7 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -2445,8 +2445,7 @@ static void bcmgenet_irq_task(struct work_struct *work)
 	}
 
 	/* Link UP/DOWN event */
-	if ((priv->hw_params->flags & GENET_HAS_MDIO_INTR) &&
-	    (priv->irq0_stat & UMAC_IRQ_LINK_EVENT)) {
+	if (priv->irq0_stat & UMAC_IRQ_LINK_EVENT) {
 		phy_mac_interrupt(priv->phydev,
 				  !!(priv->irq0_stat & UMAC_IRQ_LINK_UP));
 		priv->irq0_stat &= ~UMAC_IRQ_LINK_EVENT;
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 49eea89..3010080 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -7831,6 +7831,14 @@ static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi,
 	return ret;
 }
 
+static bool tg3_tso_bug_gso_check(struct tg3_napi *tnapi, struct sk_buff *skb)
+{
+	/* Check if we will never have enough descriptors,
+	 * as gso_segs can be more than current ring size
+	 */
+	return skb_shinfo(skb)->gso_segs < tnapi->tx_pending / 3;
+}
+
 static netdev_tx_t tg3_start_xmit(struct sk_buff *, struct net_device *);
 
 /* Use GSO to workaround all TSO packets that meet HW bug conditions
@@ -7934,14 +7942,19 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		 * vlan encapsulated.
 		 */
 		if (skb->protocol == htons(ETH_P_8021Q) ||
-		    skb->protocol == htons(ETH_P_8021AD))
-			return tg3_tso_bug(tp, tnapi, txq, skb);
+		    skb->protocol == htons(ETH_P_8021AD)) {
+			if (tg3_tso_bug_gso_check(tnapi, skb))
+				return tg3_tso_bug(tp, tnapi, txq, skb);
+			goto drop;
+		}
 
 		if (!skb_is_gso_v6(skb)) {
 			if (unlikely((ETH_HLEN + hdr_len) > 80) &&
-			    tg3_flag(tp, TSO_BUG))
-				return tg3_tso_bug(tp, tnapi, txq, skb);
-
+			    tg3_flag(tp, TSO_BUG)) {
+				if (tg3_tso_bug_gso_check(tnapi, skb))
+					return tg3_tso_bug(tp, tnapi, txq, skb);
+				goto drop;
+			}
 			ip_csum = iph->check;
 			ip_tot_len = iph->tot_len;
 			iph->check = 0;
@@ -8073,7 +8086,7 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (would_hit_hwbug) {
 		tg3_tx_skb_unmap(tnapi, tnapi->tx_prod, i);
 
-		if (mss) {
+		if (mss && tg3_tso_bug_gso_check(tnapi, skb)) {
 			/* If it's a TSO packet, do GSO instead of
 			 * allocating and copying to a large linear SKB
 			 */
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c
index 8727655..34d269c 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
@@ -1683,7 +1683,7 @@ static int octeon_setup_droq(struct octeon_device *oct, int q_no, int num_descs,
 	dev_dbg(&oct->pci_dev->dev, "Creating Droq: %d\n", q_no);
 	/* droq creation and local register settings. */
 	ret_val = octeon_create_droq(oct, q_no, num_descs, desc_size, app_ctx);
-	if (ret_val == -1)
+	if (ret_val < 0)
 		return ret_val;
 
 	if (ret_val == 1) {
@@ -2524,7 +2524,7 @@ static void handle_timestamp(struct octeon_device *oct,
 
 	octeon_swap_8B_data(&resp->timestamp, 1);
 
-	if (unlikely((skb_shinfo(skb)->tx_flags | SKBTX_IN_PROGRESS) != 0)) {
+	if (unlikely((skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS) != 0)) {
 		struct skb_shared_hwtstamps ts;
 		u64 ns = resp->timestamp;
 
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_droq.c b/drivers/net/ethernet/cavium/liquidio/octeon_droq.c
index 4dba86e..174072b 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_droq.c
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_droq.c
@@ -983,5 +983,5 @@ int octeon_create_droq(struct octeon_device *oct,
 
 create_droq_fail:
 	octeon_delete_droq(oct, q_no);
-	return -1;
+	return -ENOMEM;
 }
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index c24cb2a..a009bc3 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -574,8 +574,7 @@ static inline void nicvf_set_rxhash(struct net_device *netdev,
 
 static void nicvf_rcv_pkt_handler(struct net_device *netdev,
 				  struct napi_struct *napi,
-				  struct cmp_queue *cq,
-				  struct cqe_rx_t *cqe_rx, int cqe_type)
+				  struct cqe_rx_t *cqe_rx)
 {
 	struct sk_buff *skb;
 	struct nicvf *nic = netdev_priv(netdev);
@@ -591,7 +590,7 @@ static void nicvf_rcv_pkt_handler(struct net_device *netdev,
 	}
 
 	/* Check for errors */
-	err = nicvf_check_cqe_rx_errs(nic, cq, cqe_rx);
+	err = nicvf_check_cqe_rx_errs(nic, cqe_rx);
 	if (err && !cqe_rx->rb_cnt)
 		return;
 
@@ -682,8 +681,7 @@ loop:
 			   cq_idx, cq_desc->cqe_type);
 		switch (cq_desc->cqe_type) {
 		case CQE_TYPE_RX:
-			nicvf_rcv_pkt_handler(netdev, napi, cq,
-					      cq_desc, CQE_TYPE_RX);
+			nicvf_rcv_pkt_handler(netdev, napi, cq_desc);
 			work_done++;
 		break;
 		case CQE_TYPE_SEND:
@@ -1125,7 +1123,6 @@ int nicvf_stop(struct net_device *netdev)
 
 	/* Clear multiqset info */
 	nic->pnicvf = nic;
-	nic->sqs_count = 0;
 
 	return 0;
 }
@@ -1354,6 +1351,9 @@ void nicvf_update_stats(struct nicvf *nic)
 	drv_stats->tx_frames_ok = stats->tx_ucast_frames_ok +
 				  stats->tx_bcast_frames_ok +
 				  stats->tx_mcast_frames_ok;
+	drv_stats->rx_frames_ok = stats->rx_ucast_frames +
+				  stats->rx_bcast_frames +
+				  stats->rx_mcast_frames;
 	drv_stats->rx_drops = stats->rx_drop_red +
 			      stats->rx_drop_overrun;
 	drv_stats->tx_drops = stats->tx_drops;
@@ -1538,6 +1538,9 @@ static int nicvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	nicvf_send_vf_struct(nic);
 
+	if (!pass1_silicon(nic->pdev))
+		nic->hw_tso = true;
+
 	/* Check if this VF is in QS only mode */
 	if (nic->sqs_mode)
 		return 0;
@@ -1557,9 +1560,6 @@ static int nicvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	netdev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
 
-	if (!pass1_silicon(nic->pdev))
-		nic->hw_tso = true;
-
 	netdev->netdev_ops = &nicvf_netdev_ops;
 	netdev->watchdog_timeo = NICVF_TX_TIMEOUT;
 
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
index d0d1b54..767347b 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
@@ -1329,16 +1329,12 @@ void nicvf_update_sq_stats(struct nicvf *nic, int sq_idx)
 }
 
 /* Check for errors in the receive cmp.queue entry */
-int nicvf_check_cqe_rx_errs(struct nicvf *nic,
-			    struct cmp_queue *cq, struct cqe_rx_t *cqe_rx)
+int nicvf_check_cqe_rx_errs(struct nicvf *nic, struct cqe_rx_t *cqe_rx)
 {
 	struct nicvf_hw_stats *stats = &nic->hw_stats;
-	struct nicvf_drv_stats *drv_stats = &nic->drv_stats;
 
-	if (!cqe_rx->err_level && !cqe_rx->err_opcode) {
-		drv_stats->rx_frames_ok++;
+	if (!cqe_rx->err_level && !cqe_rx->err_opcode)
 		return 0;
-	}
 
 	if (netif_msg_rx_err(nic))
 		netdev_err(nic->netdev,
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.h b/drivers/net/ethernet/cavium/thunder/nicvf_queues.h
index c5030a7..6673e11 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.h
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.h
@@ -338,8 +338,7 @@ u64  nicvf_queue_reg_read(struct nicvf *nic,
 /* Stats */
 void nicvf_update_rq_stats(struct nicvf *nic, int rq_idx);
 void nicvf_update_sq_stats(struct nicvf *nic, int sq_idx);
-int nicvf_check_cqe_rx_errs(struct nicvf *nic,
-			    struct cmp_queue *cq, struct cqe_rx_t *cqe_rx);
+int nicvf_check_cqe_rx_errs(struct nicvf *nic, struct cqe_rx_t *cqe_rx);
 int nicvf_check_cqe_tx_errs(struct nicvf *nic,
 			    struct cmp_queue *cq, struct cqe_send_t *cqe_tx);
 #endif /* NICVF_QUEUES_H */
diff --git a/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c b/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
index ee04caa..a89721f 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
@@ -681,6 +681,24 @@ int t3_seeprom_wp(struct adapter *adapter, int enable)
 	return t3_seeprom_write(adapter, EEPROM_STAT_ADDR, enable ? 0xc : 0);
 }
 
+static int vpdstrtouint(char *s, int len, unsigned int base, unsigned int *val)
+{
+	char tok[len + 1];
+
+	memcpy(tok, s, len);
+	tok[len] = 0;
+	return kstrtouint(strim(tok), base, val);
+}
+
+static int vpdstrtou16(char *s, int len, unsigned int base, u16 *val)
+{
+	char tok[len + 1];
+
+	memcpy(tok, s, len);
+	tok[len] = 0;
+	return kstrtou16(strim(tok), base, val);
+}
+
 /**
  *	get_vpd_params - read VPD parameters from VPD EEPROM
  *	@adapter: adapter to read
@@ -709,19 +727,19 @@ static int get_vpd_params(struct adapter *adapter, struct vpd_params *p)
 			return ret;
 	}
 
-	ret = kstrtouint(vpd.cclk_data, 10, &p->cclk);
+	ret = vpdstrtouint(vpd.cclk_data, vpd.cclk_len, 10, &p->cclk);
 	if (ret)
 		return ret;
-	ret = kstrtouint(vpd.mclk_data, 10, &p->mclk);
+	ret = vpdstrtouint(vpd.mclk_data, vpd.mclk_len, 10, &p->mclk);
 	if (ret)
 		return ret;
-	ret = kstrtouint(vpd.uclk_data, 10, &p->uclk);
+	ret = vpdstrtouint(vpd.uclk_data, vpd.uclk_len, 10, &p->uclk);
 	if (ret)
 		return ret;
-	ret = kstrtouint(vpd.mdc_data, 10, &p->mdc);
+	ret = vpdstrtouint(vpd.mdc_data, vpd.mdc_len, 10, &p->mdc);
 	if (ret)
 		return ret;
-	ret = kstrtouint(vpd.mt_data, 10, &p->mem_timing);
+	ret = vpdstrtouint(vpd.mt_data, vpd.mt_len, 10, &p->mem_timing);
 	if (ret)
 		return ret;
 	memcpy(p->sn, vpd.sn_data, SERNUM_LEN);
@@ -733,10 +751,12 @@ static int get_vpd_params(struct adapter *adapter, struct vpd_params *p)
 	} else {
 		p->port_type[0] = hex_to_bin(vpd.port0_data[0]);
 		p->port_type[1] = hex_to_bin(vpd.port1_data[0]);
-		ret = kstrtou16(vpd.xaui0cfg_data, 16, &p->xauicfg[0]);
+		ret = vpdstrtou16(vpd.xaui0cfg_data, vpd.xaui0cfg_len, 16,
+				  &p->xauicfg[0]);
 		if (ret)
 			return ret;
-		ret = kstrtou16(vpd.xaui1cfg_data, 16, &p->xauicfg[1]);
+		ret = vpdstrtou16(vpd.xaui1cfg_data, vpd.xaui1cfg_len, 16,
+				  &p->xauicfg[1]);
 		if (ret)
 			return ret;
 	}
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h b/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h
index a8dda63..06bc2d2 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h
@@ -165,6 +165,7 @@ CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN
 	CH_PCI_ID_TABLE_FENTRY(0x5098),	/* Custom 2x40G QSFP */
 	CH_PCI_ID_TABLE_FENTRY(0x5099),	/* Custom 2x40G QSFP */
 	CH_PCI_ID_TABLE_FENTRY(0x509a),	/* Custom T520-CR */
+	CH_PCI_ID_TABLE_FENTRY(0x509b),	/* Custom T540-CR LOM */
 
 	/* T6 adapters:
 	 */
diff --git a/drivers/net/ethernet/cisco/enic/enic.h b/drivers/net/ethernet/cisco/enic/enic.h
index 1671fa3..7ba6d53 100644
--- a/drivers/net/ethernet/cisco/enic/enic.h
+++ b/drivers/net/ethernet/cisco/enic/enic.h
@@ -33,7 +33,7 @@
 
 #define DRV_NAME		"enic"
 #define DRV_DESCRIPTION		"Cisco VIC Ethernet NIC Driver"
-#define DRV_VERSION		"2.3.0.12"
+#define DRV_VERSION		"2.3.0.20"
 #define DRV_COPYRIGHT		"Copyright 2008-2013 Cisco Systems, Inc"
 
 #define ENIC_BARS_MAX		6
diff --git a/drivers/net/ethernet/cisco/enic/vnic_dev.c b/drivers/net/ethernet/cisco/enic/vnic_dev.c
index 1ffd105..1fdf5fe 100644
--- a/drivers/net/ethernet/cisco/enic/vnic_dev.c
+++ b/drivers/net/ethernet/cisco/enic/vnic_dev.c
@@ -298,7 +298,8 @@ static int _vnic_dev_cmd2(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 			  int wait)
 {
 	struct devcmd2_controller *dc2c = vdev->devcmd2;
-	struct devcmd2_result *result = dc2c->result + dc2c->next_result;
+	struct devcmd2_result *result;
+	u8 color;
 	unsigned int i;
 	int delay, err;
 	u32 fetch_index, new_posted;
@@ -336,13 +337,17 @@ static int _vnic_dev_cmd2(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
 	if (dc2c->cmd_ring[posted].flags & DEVCMD2_FNORESULT)
 		return 0;
 
+	result = dc2c->result + dc2c->next_result;
+	color = dc2c->color;
+
+	dc2c->next_result++;
+	if (dc2c->next_result == dc2c->result_size) {
+		dc2c->next_result = 0;
+		dc2c->color = dc2c->color ? 0 : 1;
+	}
+
 	for (delay = 0; delay < wait; delay++) {
-		if (result->color == dc2c->color) {
-			dc2c->next_result++;
-			if (dc2c->next_result == dc2c->result_size) {
-				dc2c->next_result = 0;
-				dc2c->color = dc2c->color ? 0 : 1;
-			}
+		if (result->color == color) {
 			if (result->error) {
 				err = result->error;
 				if (err != ERR_ECMDUNKNOWN ||
diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index cf94b72..48d9194 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -128,7 +128,6 @@ struct board_info {
 	struct resource *data_res;
 	struct resource	*addr_req;   /* resources requested */
 	struct resource *data_req;
-	struct resource *irq_res;
 
 	int		 irq_wake;
 
@@ -1300,22 +1299,16 @@ static int
 dm9000_open(struct net_device *dev)
 {
 	struct board_info *db = netdev_priv(dev);
-	unsigned long irqflags = db->irq_res->flags & IRQF_TRIGGER_MASK;
 
 	if (netif_msg_ifup(db))
 		dev_dbg(db->dev, "enabling %s\n", dev->name);
 
-	/* If there is no IRQ type specified, default to something that
-	 * may work, and tell the user that this is a problem */
-
-	if (irqflags == IRQF_TRIGGER_NONE)
-		irqflags = irq_get_trigger_type(dev->irq);
-
-	if (irqflags == IRQF_TRIGGER_NONE)
+	/* If there is no IRQ type specified, tell the user that this is a
+	 * problem
+	 */
+	if (irq_get_trigger_type(dev->irq) == IRQF_TRIGGER_NONE)
 		dev_warn(db->dev, "WARNING: no IRQ resource flags set.\n");
 
-	irqflags |= IRQF_SHARED;
-
 	/* GPIO0 on pre-activate PHY, Reg 1F is not set by reset */
 	iow(db, DM9000_GPR, 0);	/* REG_1F bit0 activate phyxcer */
 	mdelay(1); /* delay needs by DM9000B */
@@ -1323,7 +1316,8 @@ dm9000_open(struct net_device *dev)
 	/* Initialize DM9000 board */
 	dm9000_init_dm9000(dev);
 
-	if (request_irq(dev->irq, dm9000_interrupt, irqflags, dev->name, dev))
+	if (request_irq(dev->irq, dm9000_interrupt, IRQF_SHARED,
+			dev->name, dev))
 		return -EAGAIN;
 	/* Now that we have an interrupt handler hooked up we can unmask
 	 * our interrupts
@@ -1500,15 +1494,22 @@ dm9000_probe(struct platform_device *pdev)
 
 	db->addr_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	db->data_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	db->irq_res  = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 
-	if (db->addr_res == NULL || db->data_res == NULL ||
-	    db->irq_res == NULL) {
-		dev_err(db->dev, "insufficient resources\n");
+	if (!db->addr_res || !db->data_res) {
+		dev_err(db->dev, "insufficient resources addr=%p data=%p\n",
+			db->addr_res, db->data_res);
 		ret = -ENOENT;
 		goto out;
 	}
 
+	ndev->irq = platform_get_irq(pdev, 0);
+	if (ndev->irq < 0) {
+		dev_err(db->dev, "interrupt resource unavailable: %d\n",
+			ndev->irq);
+		ret = ndev->irq;
+		goto out;
+	}
+
 	db->irq_wake = platform_get_irq(pdev, 1);
 	if (db->irq_wake >= 0) {
 		dev_dbg(db->dev, "wakeup irq %d\n", db->irq_wake);
@@ -1570,7 +1571,6 @@ dm9000_probe(struct platform_device *pdev)
 
 	/* fill in parameters for net-dev structure */
 	ndev->base_addr = (unsigned long)db->io_addr;
-	ndev->irq	= db->irq_res->start;
 
 	/* ensure at least we have a default set of IO routines */
 	dm9000_set_io(db, iosize);
diff --git a/drivers/net/ethernet/fujitsu/fmvj18x_cs.c b/drivers/net/ethernet/fujitsu/fmvj18x_cs.c
index a7139f5..678f501 100644
--- a/drivers/net/ethernet/fujitsu/fmvj18x_cs.c
+++ b/drivers/net/ethernet/fujitsu/fmvj18x_cs.c
@@ -469,8 +469,8 @@ static int fmvj18x_config(struct pcmcia_device *link)
 		    goto failed;
 	    }
 	    /* Read MACID from CIS */
-	    for (i = 5; i < 11; i++)
-		    dev->dev_addr[i] = buf[i];
+	    for (i = 0; i < 6; i++)
+		    dev->dev_addr[i] = buf[i + 5];
 	    kfree(buf);
 	} else {
 	    if (pcmcia_get_mac_from_cis(link, dev))
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 662c2ee..b0ae69f 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -370,6 +370,11 @@ struct mvneta_port {
 	struct net_device *dev;
 	struct notifier_block cpu_notifier;
 	int rxq_def;
+	/* Protect the access to the percpu interrupt registers,
+	 * ensuring that the configuration remains coherent.
+	 */
+	spinlock_t lock;
+	bool is_stopped;
 
 	/* Core clock */
 	struct clk *clk;
@@ -1038,6 +1043,43 @@ static void mvneta_set_autoneg(struct mvneta_port *pp, int enable)
 	}
 }
 
+static void mvneta_percpu_unmask_interrupt(void *arg)
+{
+	struct mvneta_port *pp = arg;
+
+	/* All the queue are unmasked, but actually only the ones
+	 * mapped to this CPU will be unmasked
+	 */
+	mvreg_write(pp, MVNETA_INTR_NEW_MASK,
+		    MVNETA_RX_INTR_MASK_ALL |
+		    MVNETA_TX_INTR_MASK_ALL |
+		    MVNETA_MISCINTR_INTR_MASK);
+}
+
+static void mvneta_percpu_mask_interrupt(void *arg)
+{
+	struct mvneta_port *pp = arg;
+
+	/* All the queue are masked, but actually only the ones
+	 * mapped to this CPU will be masked
+	 */
+	mvreg_write(pp, MVNETA_INTR_NEW_MASK, 0);
+	mvreg_write(pp, MVNETA_INTR_OLD_MASK, 0);
+	mvreg_write(pp, MVNETA_INTR_MISC_MASK, 0);
+}
+
+static void mvneta_percpu_clear_intr_cause(void *arg)
+{
+	struct mvneta_port *pp = arg;
+
+	/* All the queue are cleared, but actually only the ones
+	 * mapped to this CPU will be cleared
+	 */
+	mvreg_write(pp, MVNETA_INTR_NEW_CAUSE, 0);
+	mvreg_write(pp, MVNETA_INTR_MISC_CAUSE, 0);
+	mvreg_write(pp, MVNETA_INTR_OLD_CAUSE, 0);
+}
+
 /* This method sets defaults to the NETA port:
  *	Clears interrupt Cause and Mask registers.
  *	Clears all MAC tables.
@@ -1055,14 +1097,10 @@ static void mvneta_defaults_set(struct mvneta_port *pp)
 	int max_cpu = num_present_cpus();
 
 	/* Clear all Cause registers */
-	mvreg_write(pp, MVNETA_INTR_NEW_CAUSE, 0);
-	mvreg_write(pp, MVNETA_INTR_OLD_CAUSE, 0);
-	mvreg_write(pp, MVNETA_INTR_MISC_CAUSE, 0);
+	on_each_cpu(mvneta_percpu_clear_intr_cause, pp, true);
 
 	/* Mask all interrupts */
-	mvreg_write(pp, MVNETA_INTR_NEW_MASK, 0);
-	mvreg_write(pp, MVNETA_INTR_OLD_MASK, 0);
-	mvreg_write(pp, MVNETA_INTR_MISC_MASK, 0);
+	on_each_cpu(mvneta_percpu_mask_interrupt, pp, true);
 	mvreg_write(pp, MVNETA_INTR_ENABLE, 0);
 
 	/* Enable MBUS Retry bit16 */
@@ -2528,34 +2566,9 @@ static int mvneta_setup_txqs(struct mvneta_port *pp)
 	return 0;
 }
 
-static void mvneta_percpu_unmask_interrupt(void *arg)
-{
-	struct mvneta_port *pp = arg;
-
-	/* All the queue are unmasked, but actually only the ones
-	 * maped to this CPU will be unmasked
-	 */
-	mvreg_write(pp, MVNETA_INTR_NEW_MASK,
-		    MVNETA_RX_INTR_MASK_ALL |
-		    MVNETA_TX_INTR_MASK_ALL |
-		    MVNETA_MISCINTR_INTR_MASK);
-}
-
-static void mvneta_percpu_mask_interrupt(void *arg)
-{
-	struct mvneta_port *pp = arg;
-
-	/* All the queue are masked, but actually only the ones
-	 * maped to this CPU will be masked
-	 */
-	mvreg_write(pp, MVNETA_INTR_NEW_MASK, 0);
-	mvreg_write(pp, MVNETA_INTR_OLD_MASK, 0);
-	mvreg_write(pp, MVNETA_INTR_MISC_MASK, 0);
-}
-
 static void mvneta_start_dev(struct mvneta_port *pp)
 {
-	unsigned int cpu;
+	int cpu;
 
 	mvneta_max_rx_size_set(pp, pp->pkt_size);
 	mvneta_txq_max_tx_size_set(pp, pp->pkt_size);
@@ -2564,16 +2577,15 @@ static void mvneta_start_dev(struct mvneta_port *pp)
 	mvneta_port_enable(pp);
 
 	/* Enable polling on the port */
-	for_each_present_cpu(cpu) {
+	for_each_online_cpu(cpu) {
 		struct mvneta_pcpu_port *port = per_cpu_ptr(pp->ports, cpu);
 
 		napi_enable(&port->napi);
 	}
 
 	/* Unmask interrupts. It has to be done from each CPU */
-	for_each_online_cpu(cpu)
-		smp_call_function_single(cpu, mvneta_percpu_unmask_interrupt,
-					 pp, true);
+	on_each_cpu(mvneta_percpu_unmask_interrupt, pp, true);
+
 	mvreg_write(pp, MVNETA_INTR_MISC_MASK,
 		    MVNETA_CAUSE_PHY_STATUS_CHANGE |
 		    MVNETA_CAUSE_LINK_CHANGE |
@@ -2589,7 +2601,7 @@ static void mvneta_stop_dev(struct mvneta_port *pp)
 
 	phy_stop(pp->phy_dev);
 
-	for_each_present_cpu(cpu) {
+	for_each_online_cpu(cpu) {
 		struct mvneta_pcpu_port *port = per_cpu_ptr(pp->ports, cpu);
 
 		napi_disable(&port->napi);
@@ -2604,13 +2616,10 @@ static void mvneta_stop_dev(struct mvneta_port *pp)
 	mvneta_port_disable(pp);
 
 	/* Clear all ethernet port interrupts */
-	mvreg_write(pp, MVNETA_INTR_MISC_CAUSE, 0);
-	mvreg_write(pp, MVNETA_INTR_OLD_CAUSE, 0);
+	on_each_cpu(mvneta_percpu_clear_intr_cause, pp, true);
 
 	/* Mask all ethernet port interrupts */
-	mvreg_write(pp, MVNETA_INTR_NEW_MASK, 0);
-	mvreg_write(pp, MVNETA_INTR_OLD_MASK, 0);
-	mvreg_write(pp, MVNETA_INTR_MISC_MASK, 0);
+	on_each_cpu(mvneta_percpu_mask_interrupt, pp, true);
 
 	mvneta_tx_reset(pp);
 	mvneta_rx_reset(pp);
@@ -2847,11 +2856,20 @@ static void mvneta_percpu_disable(void *arg)
 	disable_percpu_irq(pp->dev->irq);
 }
 
+/* Electing a CPU must be done in an atomic way: it should be done
+ * after or before the removal/insertion of a CPU and this function is
+ * not reentrant.
+ */
 static void mvneta_percpu_elect(struct mvneta_port *pp)
 {
-	int online_cpu_idx, max_cpu, cpu, i = 0;
+	int elected_cpu = 0, max_cpu, cpu, i = 0;
+
+	/* Use the cpu associated to the rxq when it is online, in all
+	 * the other cases, use the cpu 0 which can't be offline.
+	 */
+	if (cpu_online(pp->rxq_def))
+		elected_cpu = pp->rxq_def;
 
-	online_cpu_idx = pp->rxq_def % num_online_cpus();
 	max_cpu = num_present_cpus();
 
 	for_each_online_cpu(cpu) {
@@ -2862,7 +2880,7 @@ static void mvneta_percpu_elect(struct mvneta_port *pp)
 			if ((rxq % max_cpu) == cpu)
 				rxq_map |= MVNETA_CPU_RXQ_ACCESS(rxq);
 
-		if (i == online_cpu_idx)
+		if (cpu == elected_cpu)
 			/* Map the default receive queue queue to the
 			 * elected CPU
 			 */
@@ -2873,7 +2891,7 @@ static void mvneta_percpu_elect(struct mvneta_port *pp)
 		 * the CPU bound to the default RX queue
 		 */
 		if (txq_number == 1)
-			txq_map = (i == online_cpu_idx) ?
+			txq_map = (cpu == elected_cpu) ?
 				MVNETA_CPU_TXQ_ACCESS(1) : 0;
 		else
 			txq_map = mvreg_read(pp, MVNETA_CPU_MAP(cpu)) &
@@ -2902,6 +2920,14 @@ static int mvneta_percpu_notifier(struct notifier_block *nfb,
 	switch (action) {
 	case CPU_ONLINE:
 	case CPU_ONLINE_FROZEN:
+		spin_lock(&pp->lock);
+		/* Configuring the driver for a new CPU while the
+		 * driver is stopping is racy, so just avoid it.
+		 */
+		if (pp->is_stopped) {
+			spin_unlock(&pp->lock);
+			break;
+		}
 		netif_tx_stop_all_queues(pp->dev);
 
 		/* We have to synchronise on tha napi of each CPU
@@ -2917,9 +2943,7 @@ static int mvneta_percpu_notifier(struct notifier_block *nfb,
 		}
 
 		/* Mask all ethernet port interrupts */
-		mvreg_write(pp, MVNETA_INTR_NEW_MASK, 0);
-		mvreg_write(pp, MVNETA_INTR_OLD_MASK, 0);
-		mvreg_write(pp, MVNETA_INTR_MISC_MASK, 0);
+		on_each_cpu(mvneta_percpu_mask_interrupt, pp, true);
 		napi_enable(&port->napi);
 
 
@@ -2934,27 +2958,25 @@ static int mvneta_percpu_notifier(struct notifier_block *nfb,
 		 */
 		mvneta_percpu_elect(pp);
 
-		/* Unmask all ethernet port interrupts, as this
-		 * notifier is called for each CPU then the CPU to
-		 * Queue mapping is applied
-		 */
-		mvreg_write(pp, MVNETA_INTR_NEW_MASK,
-			MVNETA_RX_INTR_MASK(rxq_number) |
-			MVNETA_TX_INTR_MASK(txq_number) |
-			MVNETA_MISCINTR_INTR_MASK);
+		/* Unmask all ethernet port interrupts */
+		on_each_cpu(mvneta_percpu_unmask_interrupt, pp, true);
 		mvreg_write(pp, MVNETA_INTR_MISC_MASK,
 			MVNETA_CAUSE_PHY_STATUS_CHANGE |
 			MVNETA_CAUSE_LINK_CHANGE |
 			MVNETA_CAUSE_PSC_SYNC_CHANGE);
 		netif_tx_start_all_queues(pp->dev);
+		spin_unlock(&pp->lock);
 		break;
 	case CPU_DOWN_PREPARE:
 	case CPU_DOWN_PREPARE_FROZEN:
 		netif_tx_stop_all_queues(pp->dev);
+		/* Thanks to this lock we are sure that any pending
+		 * cpu election is done
+		 */
+		spin_lock(&pp->lock);
 		/* Mask all ethernet port interrupts */
-		mvreg_write(pp, MVNETA_INTR_NEW_MASK, 0);
-		mvreg_write(pp, MVNETA_INTR_OLD_MASK, 0);
-		mvreg_write(pp, MVNETA_INTR_MISC_MASK, 0);
+		on_each_cpu(mvneta_percpu_mask_interrupt, pp, true);
+		spin_unlock(&pp->lock);
 
 		napi_synchronize(&port->napi);
 		napi_disable(&port->napi);
@@ -2968,12 +2990,11 @@ static int mvneta_percpu_notifier(struct notifier_block *nfb,
 	case CPU_DEAD:
 	case CPU_DEAD_FROZEN:
 		/* Check if a new CPU must be elected now this on is down */
+		spin_lock(&pp->lock);
 		mvneta_percpu_elect(pp);
+		spin_unlock(&pp->lock);
 		/* Unmask all ethernet port interrupts */
-		mvreg_write(pp, MVNETA_INTR_NEW_MASK,
-			MVNETA_RX_INTR_MASK(rxq_number) |
-			MVNETA_TX_INTR_MASK(txq_number) |
-			MVNETA_MISCINTR_INTR_MASK);
+		on_each_cpu(mvneta_percpu_unmask_interrupt, pp, true);
 		mvreg_write(pp, MVNETA_INTR_MISC_MASK,
 			MVNETA_CAUSE_PHY_STATUS_CHANGE |
 			MVNETA_CAUSE_LINK_CHANGE |
@@ -2988,7 +3009,7 @@ static int mvneta_percpu_notifier(struct notifier_block *nfb,
 static int mvneta_open(struct net_device *dev)
 {
 	struct mvneta_port *pp = netdev_priv(dev);
-	int ret, cpu;
+	int ret;
 
 	pp->pkt_size = MVNETA_RX_PKT_SIZE(pp->dev->mtu);
 	pp->frag_size = SKB_DATA_ALIGN(MVNETA_RX_BUF_SIZE(pp->pkt_size)) +
@@ -3010,22 +3031,12 @@ static int mvneta_open(struct net_device *dev)
 		goto err_cleanup_txqs;
 	}
 
-	/* Even though the documentation says that request_percpu_irq
-	 * doesn't enable the interrupts automatically, it actually
-	 * does so on the local CPU.
-	 *
-	 * Make sure it's disabled.
-	 */
-	mvneta_percpu_disable(pp);
-
 	/* Enable per-CPU interrupt on all the CPU to handle our RX
 	 * queue interrupts
 	 */
-	for_each_online_cpu(cpu)
-		smp_call_function_single(cpu, mvneta_percpu_enable,
-					 pp, true);
-
+	on_each_cpu(mvneta_percpu_enable, pp, true);
 
+	pp->is_stopped = false;
 	/* Register a CPU notifier to handle the case where our CPU
 	 * might be taken offline.
 	 */
@@ -3057,13 +3068,20 @@ err_cleanup_rxqs:
 static int mvneta_stop(struct net_device *dev)
 {
 	struct mvneta_port *pp = netdev_priv(dev);
-	int cpu;
 
+	/* Inform that we are stopping so we don't want to setup the
+	 * driver for new CPUs in the notifiers
+	 */
+	spin_lock(&pp->lock);
+	pp->is_stopped = true;
 	mvneta_stop_dev(pp);
 	mvneta_mdio_remove(pp);
 	unregister_cpu_notifier(&pp->cpu_notifier);
-	for_each_present_cpu(cpu)
-		smp_call_function_single(cpu, mvneta_percpu_disable, pp, true);
+	/* Now that the notifier are unregistered, we can release le
+	 * lock
+	 */
+	spin_unlock(&pp->lock);
+	on_each_cpu(mvneta_percpu_disable, pp, true);
 	free_percpu_irq(dev->irq, pp->ports);
 	mvneta_cleanup_rxqs(pp);
 	mvneta_cleanup_txqs(pp);
@@ -3312,9 +3330,7 @@ static int  mvneta_config_rss(struct mvneta_port *pp)
 
 	netif_tx_stop_all_queues(pp->dev);
 
-	for_each_online_cpu(cpu)
-		smp_call_function_single(cpu, mvneta_percpu_mask_interrupt,
-					 pp, true);
+	on_each_cpu(mvneta_percpu_mask_interrupt, pp, true);
 
 	/* We have to synchronise on the napi of each CPU */
 	for_each_online_cpu(cpu) {
@@ -3335,7 +3351,9 @@ static int  mvneta_config_rss(struct mvneta_port *pp)
 	mvreg_write(pp, MVNETA_PORT_CONFIG, val);
 
 	/* Update the elected CPU matching the new rxq_def */
+	spin_lock(&pp->lock);
 	mvneta_percpu_elect(pp);
+	spin_unlock(&pp->lock);
 
 	/* We have to synchronise on the napi of each CPU */
 	for_each_online_cpu(cpu) {
diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
index a4beccf..c797971a 100644
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -3061,7 +3061,7 @@ static int mvpp2_prs_mac_da_accept(struct mvpp2 *priv, int port,
 
 		pe = kzalloc(sizeof(*pe), GFP_KERNEL);
 		if (!pe)
-			return -1;
+			return -ENOMEM;
 		mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
 		pe->index = tid;
 
@@ -3077,7 +3077,7 @@ static int mvpp2_prs_mac_da_accept(struct mvpp2 *priv, int port,
 	if (pmap == 0) {
 		if (add) {
 			kfree(pe);
-			return -1;
+			return -EINVAL;
 		}
 		mvpp2_prs_hw_inv(priv, pe->index);
 		priv->prs_shadow[pe->index].valid = false;
diff --git a/drivers/net/ethernet/mellanox/mlx4/catas.c b/drivers/net/ethernet/mellanox/mlx4/catas.c
index 715de8a..c7e9399 100644
--- a/drivers/net/ethernet/mellanox/mlx4/catas.c
+++ b/drivers/net/ethernet/mellanox/mlx4/catas.c
@@ -182,10 +182,17 @@ void mlx4_enter_error_state(struct mlx4_dev_persistent *persist)
 		err = mlx4_reset_slave(dev);
 	else
 		err = mlx4_reset_master(dev);
-	BUG_ON(err != 0);
 
+	if (!err) {
+		mlx4_err(dev, "device was reset successfully\n");
+	} else {
+		/* EEH could have disabled the PCI channel during reset. That's
+		 * recoverable and the PCI error flow will handle it.
+		 */
+		if (!pci_channel_offline(dev->persist->pdev))
+			BUG_ON(1);
+	}
 	dev->persist->state |= MLX4_DEVICE_STATE_INTERNAL_ERROR;
-	mlx4_err(dev, "device was reset successfully\n");
 	mutex_unlock(&persist->device_state_mutex);
 
 	/* At that step HW was already reset, now notify clients */
diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index d48d579..e94ca1c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -2429,7 +2429,7 @@ err_thread:
 	flush_workqueue(priv->mfunc.master.comm_wq);
 	destroy_workqueue(priv->mfunc.master.comm_wq);
 err_slaves:
-	while (--i) {
+	while (i--) {
 		for (port = 1; port <= MLX4_MAX_PORTS; port++)
 			kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]);
 	}
diff --git a/drivers/net/ethernet/mellanox/mlx4/cq.c b/drivers/net/ethernet/mellanox/mlx4/cq.c
index 3348e64..a849da9 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cq.c
@@ -318,7 +318,9 @@ int mlx4_cq_alloc(struct mlx4_dev *dev, int nent,
 	if (timestamp_en)
 		cq_context->flags  |= cpu_to_be32(1 << 19);
 
-	cq_context->logsize_usrpage = cpu_to_be32((ilog2(nent) << 24) | uar->index);
+	cq_context->logsize_usrpage =
+		cpu_to_be32((ilog2(nent) << 24) |
+			    mlx4_to_hw_uar_index(dev, uar->index));
 	cq_context->comp_eqn	    = priv->eq_table.eq[MLX4_CQ_TO_EQ_VECTOR(vector)].eqn;
 	cq_context->log_page_size   = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_clock.c b/drivers/net/ethernet/mellanox/mlx4/en_clock.c
index 038f9ce..1494997 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_clock.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_clock.c
@@ -236,6 +236,24 @@ static const struct ptp_clock_info mlx4_en_ptp_clock_info = {
 	.enable		= mlx4_en_phc_enable,
 };
 
+#define MLX4_EN_WRAP_AROUND_SEC	10ULL
+
+/* This function calculates the max shift that enables the user range
+ * of MLX4_EN_WRAP_AROUND_SEC values in the cycles register.
+ */
+static u32 freq_to_shift(u16 freq)
+{
+	u32 freq_khz = freq * 1000;
+	u64 max_val_cycles = freq_khz * 1000 * MLX4_EN_WRAP_AROUND_SEC;
+	u64 max_val_cycles_rounded = is_power_of_2(max_val_cycles + 1) ?
+		max_val_cycles : roundup_pow_of_two(max_val_cycles) - 1;
+	/* calculate max possible multiplier in order to fit in 64bit */
+	u64 max_mul = div_u64(0xffffffffffffffffULL, max_val_cycles_rounded);
+
+	/* This comes from the reverse of clocksource_khz2mult */
+	return ilog2(div_u64(max_mul * freq_khz, 1000000));
+}
+
 void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev)
 {
 	struct mlx4_dev *dev = mdev->dev;
@@ -254,12 +272,7 @@ void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev)
 	memset(&mdev->cycles, 0, sizeof(mdev->cycles));
 	mdev->cycles.read = mlx4_en_read_clock;
 	mdev->cycles.mask = CLOCKSOURCE_MASK(48);
-	/* Using shift to make calculation more accurate. Since current HW
-	 * clock frequency is 427 MHz, and cycles are given using a 48 bits
-	 * register, the biggest shift when calculating using u64, is 14
-	 * (max_cycles * multiplier < 2^64)
-	 */
-	mdev->cycles.shift = 14;
+	mdev->cycles.shift = freq_to_shift(dev->caps.hca_core_clock);
 	mdev->cycles.mult =
 		clocksource_khz2mult(1000 * dev->caps.hca_core_clock, mdev->cycles.shift);
 	mdev->nominal_c_mult = mdev->cycles.mult;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 0c7e3f6..f191a16 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2344,8 +2344,6 @@ out:
 	/* set offloads */
 	priv->dev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 				      NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL;
-	priv->dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
-	priv->dev->features    |= NETIF_F_GSO_UDP_TUNNEL;
 }
 
 static void mlx4_en_del_vxlan_offloads(struct work_struct *work)
@@ -2356,8 +2354,6 @@ static void mlx4_en_del_vxlan_offloads(struct work_struct *work)
 	/* unset offloads */
 	priv->dev->hw_enc_features &= ~(NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 				      NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL);
-	priv->dev->hw_features &= ~NETIF_F_GSO_UDP_TUNNEL;
-	priv->dev->features    &= ~NETIF_F_GSO_UDP_TUNNEL;
 
 	ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
 				  VXLAN_STEER_BY_OUTER_MAC, 0);
@@ -2980,6 +2976,11 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 		priv->rss_hash_fn = ETH_RSS_HASH_TOP;
 	}
 
+	if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
+		dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
+		dev->features    |= NETIF_F_GSO_UDP_TUNNEL;
+	}
+
 	mdev->pndev[port] = dev;
 	mdev->upper[port] = NULL;
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_port.c b/drivers/net/ethernet/mellanox/mlx4/en_port.c
index ee99e67..3904b5f 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_port.c
@@ -238,11 +238,11 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
 	stats->collisions = 0;
 	stats->rx_dropped = be32_to_cpu(mlx4_en_stats->RDROP);
 	stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
-	stats->rx_over_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
+	stats->rx_over_errors = 0;
 	stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
 	stats->rx_frame_errors = 0;
 	stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
-	stats->rx_missed_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
+	stats->rx_missed_errors = 0;
 	stats->tx_aborted_errors = 0;
 	stats->tx_carrier_errors = 0;
 	stats->tx_fifo_errors = 0;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_resources.c b/drivers/net/ethernet/mellanox/mlx4/en_resources.c
index 12aab5a..02e925d 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_resources.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_resources.c
@@ -58,7 +58,8 @@ void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
 	} else {
 		context->sq_size_stride = ilog2(TXBB_SIZE) - 4;
 	}
-	context->usr_page = cpu_to_be32(mdev->priv_uar.index);
+	context->usr_page = cpu_to_be32(mlx4_to_hw_uar_index(mdev->dev,
+					mdev->priv_uar.index));
 	context->local_qpn = cpu_to_be32(qpn);
 	context->pri_path.ackto = 1 & 0x07;
 	context->pri_path.sched_queue = 0x83 | (priv->port - 1) << 6;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 4421bf5..e0946ab 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -213,7 +213,9 @@ int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
 	mlx4_en_fill_qp_context(priv, ring->size, ring->stride, 1, 0, ring->qpn,
 				ring->cqn, user_prio, &ring->context);
 	if (ring->bf_alloced)
-		ring->context.usr_page = cpu_to_be32(ring->bf.uar->index);
+		ring->context.usr_page =
+			cpu_to_be32(mlx4_to_hw_uar_index(mdev->dev,
+							 ring->bf.uar->index));
 
 	err = mlx4_qp_to_ready(mdev->dev, &ring->wqres.mtt, &ring->context,
 			       &ring->qp, &ring->qp_state);
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 4696053..f613977 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -940,9 +940,10 @@ static void __iomem *mlx4_get_eq_uar(struct mlx4_dev *dev, struct mlx4_eq *eq)
 
 	if (!priv->eq_table.uar_map[index]) {
 		priv->eq_table.uar_map[index] =
-			ioremap(pci_resource_start(dev->persist->pdev, 2) +
-				((eq->eqn / 4) << PAGE_SHIFT),
-				PAGE_SIZE);
+			ioremap(
+				pci_resource_start(dev->persist->pdev, 2) +
+				((eq->eqn / 4) << (dev->uar_page_shift)),
+				(1 << (dev->uar_page_shift)));
 		if (!priv->eq_table.uar_map[index]) {
 			mlx4_err(dev, "Couldn't map EQ doorbell for EQN 0x%06x\n",
 				 eq->eqn);
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index f1b6d21..2cc3c62 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -168,6 +168,20 @@ struct mlx4_port_config {
 
 static atomic_t pf_loading = ATOMIC_INIT(0);
 
+static inline void mlx4_set_num_reserved_uars(struct mlx4_dev *dev,
+					      struct mlx4_dev_cap *dev_cap)
+{
+	/* The reserved_uars is calculated by system page size unit.
+	 * Therefore, adjustment is added when the uar page size is less
+	 * than the system page size
+	 */
+	dev->caps.reserved_uars	=
+		max_t(int,
+		      mlx4_get_num_reserved_uar(dev),
+		      dev_cap->reserved_uars /
+			(1 << (PAGE_SHIFT - dev->uar_page_shift)));
+}
+
 int mlx4_check_port_params(struct mlx4_dev *dev,
 			   enum mlx4_port_type *port_type)
 {
@@ -386,8 +400,6 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 	dev->caps.reserved_mtts      = dev_cap->reserved_mtts;
 	dev->caps.reserved_mrws	     = dev_cap->reserved_mrws;
 
-	/* The first 128 UARs are used for EQ doorbells */
-	dev->caps.reserved_uars	     = max_t(int, 128, dev_cap->reserved_uars);
 	dev->caps.reserved_pds	     = dev_cap->reserved_pds;
 	dev->caps.reserved_xrcds     = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
 					dev_cap->reserved_xrcds : 0;
@@ -405,6 +417,15 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 	dev->caps.max_gso_sz	     = dev_cap->max_gso_sz;
 	dev->caps.max_rss_tbl_sz     = dev_cap->max_rss_tbl_sz;
 
+	/* Save uar page shift */
+	if (!mlx4_is_slave(dev)) {
+		/* Virtual PCI function needs to determine UAR page size from
+		 * firmware. Only master PCI function can set the uar page size
+		 */
+		dev->uar_page_shift = DEFAULT_UAR_PAGE_SHIFT;
+		mlx4_set_num_reserved_uars(dev, dev_cap);
+	}
+
 	if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN) {
 		struct mlx4_init_hca_param hca_param;
 
@@ -815,16 +836,25 @@ static int mlx4_slave_cap(struct mlx4_dev *dev)
 		return -ENODEV;
 	}
 
-	/* slave gets uar page size from QUERY_HCA fw command */
-	dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12);
+	/* Set uar_page_shift for VF */
+	dev->uar_page_shift = hca_param.uar_page_sz + 12;
 
-	/* TODO: relax this assumption */
-	if (dev->caps.uar_page_size != PAGE_SIZE) {
-		mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n",
-			 dev->caps.uar_page_size, PAGE_SIZE);
-		return -ENODEV;
+	/* Make sure the master uar page size is valid */
+	if (dev->uar_page_shift > PAGE_SHIFT) {
+		mlx4_err(dev,
+			 "Invalid configuration: uar page size is larger than system page size\n");
+		return  -ENODEV;
 	}
 
+	/* Set reserved_uars based on the uar_page_shift */
+	mlx4_set_num_reserved_uars(dev, &dev_cap);
+
+	/* Although uar page size in FW differs from system page size,
+	 * upper software layers (mlx4_ib, mlx4_en and part of mlx4_core)
+	 * still works with assumption that uar page size == system page size
+	 */
+	dev->caps.uar_page_size = PAGE_SIZE;
+
 	memset(&func_cap, 0, sizeof(func_cap));
 	err = mlx4_QUERY_FUNC_CAP(dev, 0, &func_cap);
 	if (err) {
@@ -2179,8 +2209,12 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
 
 		dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
 
-		init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
-		init_hca.uar_page_sz = PAGE_SHIFT - 12;
+		/* Always set UAR page size 4KB, set log_uar_sz accordingly */
+		init_hca.log_uar_sz = ilog2(dev->caps.num_uars) +
+				      PAGE_SHIFT -
+				      DEFAULT_UAR_PAGE_SHIFT;
+		init_hca.uar_page_sz = DEFAULT_UAR_PAGE_SHIFT - 12;
+
 		init_hca.mw_enabled = 0;
 		if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
 		    dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN)
diff --git a/drivers/net/ethernet/mellanox/mlx4/pd.c b/drivers/net/ethernet/mellanox/mlx4/pd.c
index 609c59d..b3cc3ab 100644
--- a/drivers/net/ethernet/mellanox/mlx4/pd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/pd.c
@@ -269,9 +269,15 @@ EXPORT_SYMBOL_GPL(mlx4_bf_free);
 
 int mlx4_init_uar_table(struct mlx4_dev *dev)
 {
-	if (dev->caps.num_uars <= 128) {
-		mlx4_err(dev, "Only %d UAR pages (need more than 128)\n",
-			 dev->caps.num_uars);
+	int num_reserved_uar = mlx4_get_num_reserved_uar(dev);
+
+	mlx4_dbg(dev, "uar_page_shift = %d", dev->uar_page_shift);
+	mlx4_dbg(dev, "Effective reserved_uars=%d", dev->caps.reserved_uars);
+
+	if (dev->caps.num_uars <= num_reserved_uar) {
+		mlx4_err(
+			dev, "Only %d UAR pages (need more than %d)\n",
+			dev->caps.num_uars, num_reserved_uar);
 		mlx4_err(dev, "Increase firmware log2_uar_bar_megabytes?\n");
 		return -ENODEV;
 	}
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index b46dbe2..25ce1b0 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -915,11 +915,13 @@ static int handle_existing_counter(struct mlx4_dev *dev, u8 slave, int port,
 
 	spin_lock_irq(mlx4_tlock(dev));
 	r = find_res(dev, counter_index, RES_COUNTER);
-	if (!r || r->owner != slave)
+	if (!r || r->owner != slave) {
 		ret = -EINVAL;
-	counter = container_of(r, struct res_counter, com);
-	if (!counter->port)
-		counter->port = port;
+	} else {
+		counter = container_of(r, struct res_counter, com);
+		if (!counter->port)
+			counter->port = port;
+	}
 
 	spin_unlock_irq(mlx4_tlock(dev));
 	return ret;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 6a3e430..d4e1c30 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -2024,18 +2024,37 @@ static int mlx5e_get_vf_stats(struct net_device *dev,
 					    vf_stats);
 }
 
-static struct net_device_ops mlx5e_netdev_ops = {
+static const struct net_device_ops mlx5e_netdev_ops_basic = {
 	.ndo_open                = mlx5e_open,
 	.ndo_stop                = mlx5e_close,
 	.ndo_start_xmit          = mlx5e_xmit,
 	.ndo_get_stats64         = mlx5e_get_stats,
 	.ndo_set_rx_mode         = mlx5e_set_rx_mode,
 	.ndo_set_mac_address     = mlx5e_set_mac,
-	.ndo_vlan_rx_add_vid	 = mlx5e_vlan_rx_add_vid,
-	.ndo_vlan_rx_kill_vid	 = mlx5e_vlan_rx_kill_vid,
+	.ndo_vlan_rx_add_vid     = mlx5e_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid    = mlx5e_vlan_rx_kill_vid,
 	.ndo_set_features        = mlx5e_set_features,
-	.ndo_change_mtu		 = mlx5e_change_mtu,
-	.ndo_do_ioctl		 = mlx5e_ioctl,
+	.ndo_change_mtu          = mlx5e_change_mtu,
+	.ndo_do_ioctl            = mlx5e_ioctl,
+};
+
+static const struct net_device_ops mlx5e_netdev_ops_sriov = {
+	.ndo_open                = mlx5e_open,
+	.ndo_stop                = mlx5e_close,
+	.ndo_start_xmit          = mlx5e_xmit,
+	.ndo_get_stats64         = mlx5e_get_stats,
+	.ndo_set_rx_mode         = mlx5e_set_rx_mode,
+	.ndo_set_mac_address     = mlx5e_set_mac,
+	.ndo_vlan_rx_add_vid     = mlx5e_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid    = mlx5e_vlan_rx_kill_vid,
+	.ndo_set_features        = mlx5e_set_features,
+	.ndo_change_mtu          = mlx5e_change_mtu,
+	.ndo_do_ioctl            = mlx5e_ioctl,
+	.ndo_set_vf_mac          = mlx5e_set_vf_mac,
+	.ndo_set_vf_vlan         = mlx5e_set_vf_vlan,
+	.ndo_get_vf_config       = mlx5e_get_vf_config,
+	.ndo_set_vf_link_state   = mlx5e_set_vf_link_state,
+	.ndo_get_vf_stats        = mlx5e_get_vf_stats,
 };
 
 static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
@@ -2137,18 +2156,11 @@ static void mlx5e_build_netdev(struct net_device *netdev)
 
 	SET_NETDEV_DEV(netdev, &mdev->pdev->dev);
 
-	if (priv->params.num_tc > 1)
-		mlx5e_netdev_ops.ndo_select_queue = mlx5e_select_queue;
-
-	if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
-		mlx5e_netdev_ops.ndo_set_vf_mac = mlx5e_set_vf_mac;
-		mlx5e_netdev_ops.ndo_set_vf_vlan = mlx5e_set_vf_vlan;
-		mlx5e_netdev_ops.ndo_get_vf_config = mlx5e_get_vf_config;
-		mlx5e_netdev_ops.ndo_set_vf_link_state = mlx5e_set_vf_link_state;
-		mlx5e_netdev_ops.ndo_get_vf_stats = mlx5e_get_vf_stats;
-	}
+	if (MLX5_CAP_GEN(mdev, vport_group_manager))
+		netdev->netdev_ops = &mlx5e_netdev_ops_sriov;
+	else
+		netdev->netdev_ops = &mlx5e_netdev_ops_basic;
 
-	netdev->netdev_ops        = &mlx5e_netdev_ops;
 	netdev->watchdog_timeo    = 15 * HZ;
 
 	netdev->ethtool_ops	  = &mlx5e_ethtool_ops;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/port.h b/drivers/net/ethernet/mellanox/mlxsw/port.h
index 726f543..ae65b99 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/port.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/port.h
@@ -49,7 +49,7 @@
 #define MLXSW_PORT_MID			0xd000
 
 #define MLXSW_PORT_MAX_PHY_PORTS	0x40
-#define MLXSW_PORT_MAX_PORTS		MLXSW_PORT_MAX_PHY_PORTS
+#define MLXSW_PORT_MAX_PORTS		(MLXSW_PORT_MAX_PHY_PORTS + 1)
 
 #define MLXSW_PORT_DEVID_BITS_OFFSET	10
 #define MLXSW_PORT_PHY_BITS_OFFSET	4
diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index bb77e22..ffe4c03 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -873,6 +873,62 @@ static inline void mlxsw_reg_spvm_pack(char *payload, u8 local_port,
 	}
 }
 
+/* SPAFT - Switch Port Acceptable Frame Types
+ * ------------------------------------------
+ * The Switch Port Acceptable Frame Types register configures the frame
+ * admittance of the port.
+ */
+#define MLXSW_REG_SPAFT_ID 0x2010
+#define MLXSW_REG_SPAFT_LEN 0x08
+
+static const struct mlxsw_reg_info mlxsw_reg_spaft = {
+	.id = MLXSW_REG_SPAFT_ID,
+	.len = MLXSW_REG_SPAFT_LEN,
+};
+
+/* reg_spaft_local_port
+ * Local port number.
+ * Access: Index
+ *
+ * Note: CPU port is not supported (all tag types are allowed).
+ */
+MLXSW_ITEM32(reg, spaft, local_port, 0x00, 16, 8);
+
+/* reg_spaft_sub_port
+ * Virtual port within the physical port.
+ * Should be set to 0 when virtual ports are not enabled on the port.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, spaft, sub_port, 0x00, 8, 8);
+
+/* reg_spaft_allow_untagged
+ * When set, untagged frames on the ingress are allowed (default).
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, spaft, allow_untagged, 0x04, 31, 1);
+
+/* reg_spaft_allow_prio_tagged
+ * When set, priority tagged frames on the ingress are allowed (default).
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, spaft, allow_prio_tagged, 0x04, 30, 1);
+
+/* reg_spaft_allow_tagged
+ * When set, tagged frames on the ingress are allowed (default).
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, spaft, allow_tagged, 0x04, 29, 1);
+
+static inline void mlxsw_reg_spaft_pack(char *payload, u8 local_port,
+					bool allow_untagged)
+{
+	MLXSW_REG_ZERO(spaft, payload);
+	mlxsw_reg_spaft_local_port_set(payload, local_port);
+	mlxsw_reg_spaft_allow_untagged_set(payload, allow_untagged);
+	mlxsw_reg_spaft_allow_prio_tagged_set(payload, true);
+	mlxsw_reg_spaft_allow_tagged_set(payload, true);
+}
+
 /* SFGC - Switch Flooding Group Configuration
  * ------------------------------------------
  * The following register controls the association of flooding tables and MIDs
@@ -3203,6 +3259,8 @@ static inline const char *mlxsw_reg_id_str(u16 reg_id)
 		return "SPVID";
 	case MLXSW_REG_SPVM_ID:
 		return "SPVM";
+	case MLXSW_REG_SPAFT_ID:
+		return "SPAFT";
 	case MLXSW_REG_SFGC_ID:
 		return "SFGC";
 	case MLXSW_REG_SFTR_ID:
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 217856b..09ce451 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -2123,6 +2123,8 @@ static int mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port,
 	if (flush_fdb && mlxsw_sp_port_fdb_flush(mlxsw_sp_port))
 		netdev_err(mlxsw_sp_port->dev, "Failed to flush FDB\n");
 
+	mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
+
 	mlxsw_sp_port->learning = 0;
 	mlxsw_sp_port->learning_sync = 0;
 	mlxsw_sp_port->uc_flood = 0;
@@ -2746,6 +2748,13 @@ static int mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport,
 		goto err_vport_flood_set;
 	}
 
+	err = mlxsw_sp_port_stp_state_set(mlxsw_sp_vport, vid,
+					  MLXSW_REG_SPMS_STATE_FORWARDING);
+	if (err) {
+		netdev_err(dev, "Failed to set STP state\n");
+		goto err_port_stp_state_set;
+	}
+
 	if (flush_fdb && mlxsw_sp_vport_fdb_flush(mlxsw_sp_vport))
 		netdev_err(dev, "Failed to flush FDB\n");
 
@@ -2763,6 +2772,7 @@ static int mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport,
 
 	return 0;
 
+err_port_stp_state_set:
 err_vport_flood_set:
 err_port_vid_learning_set:
 err_port_vid_to_fid_validate:
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 7f42eb1..3b89ed2 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -254,5 +254,6 @@ int mlxsw_sp_port_kill_vid(struct net_device *dev,
 int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 vfid,
 			     bool set, bool only_uc);
 void mlxsw_sp_port_active_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port);
+int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid);
 
 #endif
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index e492ca2..7b56098 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -370,7 +370,8 @@ static int mlxsw_sp_port_attr_set(struct net_device *dev,
 	return err;
 }
 
-static int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
+static int __mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port,
+				    u16 vid)
 {
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	char spvid_pl[MLXSW_REG_SPVID_LEN];
@@ -379,6 +380,53 @@ static int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
 	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl);
 }
 
+static int mlxsw_sp_port_allow_untagged_set(struct mlxsw_sp_port *mlxsw_sp_port,
+					    bool allow)
+{
+	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
+	char spaft_pl[MLXSW_REG_SPAFT_LEN];
+
+	mlxsw_reg_spaft_pack(spaft_pl, mlxsw_sp_port->local_port, allow);
+	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spaft), spaft_pl);
+}
+
+int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
+{
+	struct net_device *dev = mlxsw_sp_port->dev;
+	int err;
+
+	if (!vid) {
+		err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, false);
+		if (err) {
+			netdev_err(dev, "Failed to disallow untagged traffic\n");
+			return err;
+		}
+	} else {
+		err = __mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid);
+		if (err) {
+			netdev_err(dev, "Failed to set PVID\n");
+			return err;
+		}
+
+		/* Only allow if not already allowed. */
+		if (!mlxsw_sp_port->pvid) {
+			err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port,
+							       true);
+			if (err) {
+				netdev_err(dev, "Failed to allow untagged traffic\n");
+				goto err_port_allow_untagged_set;
+			}
+		}
+	}
+
+	mlxsw_sp_port->pvid = vid;
+	return 0;
+
+err_port_allow_untagged_set:
+	__mlxsw_sp_port_pvid_set(mlxsw_sp_port, mlxsw_sp_port->pvid);
+	return err;
+}
+
 static int mlxsw_sp_fid_create(struct mlxsw_sp *mlxsw_sp, u16 fid)
 {
 	char sfmr_pl[MLXSW_REG_SFMR_LEN];
@@ -540,7 +588,12 @@ static int __mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
 			netdev_err(dev, "Unable to add PVID %d\n", vid_begin);
 			goto err_port_pvid_set;
 		}
-		mlxsw_sp_port->pvid = vid_begin;
+	} else if (!flag_pvid && old_pvid >= vid_begin && old_pvid <= vid_end) {
+		err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 0);
+		if (err) {
+			netdev_err(dev, "Unable to del PVID\n");
+			goto err_port_pvid_set;
+		}
 	}
 
 	/* Changing activity bits only if HW operation succeded */
@@ -892,20 +945,18 @@ static int __mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
 		return err;
 	}
 
+	if (init)
+		goto out;
+
 	pvid = mlxsw_sp_port->pvid;
-	if (pvid >= vid_begin && pvid <= vid_end && pvid != 1) {
-		/* Default VLAN is always 1 */
-		err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
+	if (pvid >= vid_begin && pvid <= vid_end) {
+		err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 0);
 		if (err) {
 			netdev_err(dev, "Unable to del PVID %d\n", pvid);
 			return err;
 		}
-		mlxsw_sp_port->pvid = 1;
 	}
 
-	if (init)
-		goto out;
-
 	err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end,
 					false, false);
 	if (err) {
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 17d5571..537974c 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -6137,28 +6137,28 @@ static void rtl_hw_start_8168h_1(struct rtl8169_private *tp)
 		sw_cnt_1ms_ini = 16000000/rg_saw_cnt;
 		sw_cnt_1ms_ini &= 0x0fff;
 		data = r8168_mac_ocp_read(tp, 0xd412);
-		data &= 0x0fff;
+		data &= ~0x0fff;
 		data |= sw_cnt_1ms_ini;
 		r8168_mac_ocp_write(tp, 0xd412, data);
 	}
 
 	data = r8168_mac_ocp_read(tp, 0xe056);
-	data &= 0xf0;
-	data |= 0x07;
+	data &= ~0xf0;
+	data |= 0x70;
 	r8168_mac_ocp_write(tp, 0xe056, data);
 
 	data = r8168_mac_ocp_read(tp, 0xe052);
-	data &= 0x8008;
-	data |= 0x6000;
+	data &= ~0x6000;
+	data |= 0x8008;
 	r8168_mac_ocp_write(tp, 0xe052, data);
 
 	data = r8168_mac_ocp_read(tp, 0xe0d6);
-	data &= 0x01ff;
+	data &= ~0x01ff;
 	data |= 0x017f;
 	r8168_mac_ocp_write(tp, 0xe0d6, data);
 
 	data = r8168_mac_ocp_read(tp, 0xd420);
-	data &= 0x0fff;
+	data &= ~0x0fff;
 	data |= 0x047f;
 	r8168_mac_ocp_write(tp, 0xd420, data);
 
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index ac43ed9..744d780 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1139,7 +1139,8 @@ static int ravb_set_ringparam(struct net_device *ndev,
 	if (netif_running(ndev)) {
 		netif_device_detach(ndev);
 		/* Stop PTP Clock driver */
-		ravb_ptp_stop(ndev);
+		if (priv->chip_id == RCAR_GEN2)
+			ravb_ptp_stop(ndev);
 		/* Wait for DMA stopping */
 		error = ravb_stop_dma(ndev);
 		if (error) {
@@ -1170,7 +1171,8 @@ static int ravb_set_ringparam(struct net_device *ndev,
 		ravb_emac_init(ndev);
 
 		/* Initialise PTP Clock driver */
-		ravb_ptp_init(ndev, priv->pdev);
+		if (priv->chip_id == RCAR_GEN2)
+			ravb_ptp_init(ndev, priv->pdev);
 
 		netif_device_attach(ndev);
 	}
@@ -1298,7 +1300,8 @@ static void ravb_tx_timeout_work(struct work_struct *work)
 	netif_tx_stop_all_queues(ndev);
 
 	/* Stop PTP Clock driver */
-	ravb_ptp_stop(ndev);
+	if (priv->chip_id == RCAR_GEN2)
+		ravb_ptp_stop(ndev);
 
 	/* Wait for DMA stopping */
 	ravb_stop_dma(ndev);
@@ -1311,7 +1314,8 @@ static void ravb_tx_timeout_work(struct work_struct *work)
 	ravb_emac_init(ndev);
 
 	/* Initialise PTP Clock driver */
-	ravb_ptp_init(ndev, priv->pdev);
+	if (priv->chip_id == RCAR_GEN2)
+		ravb_ptp_init(ndev, priv->pdev);
 
 	netif_tx_start_all_queues(ndev);
 }
@@ -1814,10 +1818,6 @@ static int ravb_probe(struct platform_device *pdev)
 			   CCC_OPC_CONFIG | CCC_GAC | CCC_CSEL_HPB, CCC);
 	}
 
-	/* Set CSEL value */
-	ravb_write(ndev, (ravb_read(ndev, CCC) & ~CCC_CSEL) | CCC_CSEL_HPB,
-		   CCC);
-
 	/* Set GTI value */
 	error = ravb_set_gti(ndev);
 	if (error)
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index 0e2fc1a..db7db8a 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -2342,8 +2342,8 @@ static int smc_drv_probe(struct platform_device *pdev)
 	}
 
 	ndev->irq = platform_get_irq(pdev, 0);
-	if (ndev->irq <= 0) {
-		ret = -ENODEV;
+	if (ndev->irq < 0) {
+		ret = ndev->irq;
 		goto out_release_io;
 	}
 	/*
diff --git a/drivers/net/ethernet/synopsys/dwc_eth_qos.c b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
index 70814b7..fc8bbff 100644
--- a/drivers/net/ethernet/synopsys/dwc_eth_qos.c
+++ b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
@@ -1880,9 +1880,9 @@ static int dwceqos_open(struct net_device *ndev)
 	}
 	netdev_reset_queue(ndev);
 
+	dwceqos_init_hw(lp);
 	napi_enable(&lp->napi);
 	phy_start(lp->phy_dev);
-	dwceqos_init_hw(lp);
 
 	netif_start_queue(ndev);
 	tasklet_enable(&lp->tx_bdreclaim_tasklet);
diff --git a/drivers/net/ethernet/ti/cpsw-phy-sel.c b/drivers/net/ethernet/ti/cpsw-phy-sel.c
index e9cc61e..c3e85ac 100644
--- a/drivers/net/ethernet/ti/cpsw-phy-sel.c
+++ b/drivers/net/ethernet/ti/cpsw-phy-sel.c
@@ -63,8 +63,12 @@ static void cpsw_gmii_sel_am3352(struct cpsw_phy_sel_priv *priv,
 		mode = AM33XX_GMII_SEL_MODE_RGMII;
 		break;
 
-	case PHY_INTERFACE_MODE_MII:
 	default:
+		dev_warn(priv->dev,
+			 "Unsupported PHY mode: \"%s\". Defaulting to MII.\n",
+			phy_modes(phy_mode));
+		/* fallthrough */
+	case PHY_INTERFACE_MODE_MII:
 		mode = AM33XX_GMII_SEL_MODE_MII;
 		break;
 	};
@@ -106,8 +110,12 @@ static void cpsw_gmii_sel_dra7xx(struct cpsw_phy_sel_priv *priv,
 		mode = AM33XX_GMII_SEL_MODE_RGMII;
 		break;
 
-	case PHY_INTERFACE_MODE_MII:
 	default:
+		dev_warn(priv->dev,
+			 "Unsupported PHY mode: \"%s\". Defaulting to MII.\n",
+			phy_modes(phy_mode));
+		/* fallthrough */
+	case PHY_INTERFACE_MODE_MII:
 		mode = AM33XX_GMII_SEL_MODE_MII;
 		break;
 	};
diff --git a/drivers/net/ethernet/ti/netcp_core.c b/drivers/net/ethernet/ti/netcp_core.c
index c61d66d..029841f 100644
--- a/drivers/net/ethernet/ti/netcp_core.c
+++ b/drivers/net/ethernet/ti/netcp_core.c
@@ -117,21 +117,17 @@ static void get_pkt_info(dma_addr_t *buff, u32 *buff_len, dma_addr_t *ndesc,
 	*ndesc = le32_to_cpu(desc->next_desc);
 }
 
-static void get_pad_info(u32 *pad0, u32 *pad1, u32 *pad2, struct knav_dma_desc *desc)
+static u32 get_sw_data(int index, struct knav_dma_desc *desc)
 {
-	*pad0 = le32_to_cpu(desc->pad[0]);
-	*pad1 = le32_to_cpu(desc->pad[1]);
-	*pad2 = le32_to_cpu(desc->pad[2]);
+	/* No Endian conversion needed as this data is untouched by hw */
+	return desc->sw_data[index];
 }
 
-static void get_pad_ptr(void **padptr, struct knav_dma_desc *desc)
-{
-	u64 pad64;
-
-	pad64 = le32_to_cpu(desc->pad[0]) +
-		((u64)le32_to_cpu(desc->pad[1]) << 32);
-	*padptr = (void *)(uintptr_t)pad64;
-}
+/* use these macros to get sw data */
+#define GET_SW_DATA0(desc) get_sw_data(0, desc)
+#define GET_SW_DATA1(desc) get_sw_data(1, desc)
+#define GET_SW_DATA2(desc) get_sw_data(2, desc)
+#define GET_SW_DATA3(desc) get_sw_data(3, desc)
 
 static void get_org_pkt_info(dma_addr_t *buff, u32 *buff_len,
 			     struct knav_dma_desc *desc)
@@ -163,13 +159,18 @@ static void set_desc_info(u32 desc_info, u32 pkt_info,
 	desc->packet_info = cpu_to_le32(pkt_info);
 }
 
-static void set_pad_info(u32 pad0, u32 pad1, u32 pad2, struct knav_dma_desc *desc)
+static void set_sw_data(int index, u32 data, struct knav_dma_desc *desc)
 {
-	desc->pad[0] = cpu_to_le32(pad0);
-	desc->pad[1] = cpu_to_le32(pad1);
-	desc->pad[2] = cpu_to_le32(pad1);
+	/* No Endian conversion needed as this data is untouched by hw */
+	desc->sw_data[index] = data;
 }
 
+/* use these macros to set sw data */
+#define SET_SW_DATA0(data, desc) set_sw_data(0, data, desc)
+#define SET_SW_DATA1(data, desc) set_sw_data(1, data, desc)
+#define SET_SW_DATA2(data, desc) set_sw_data(2, data, desc)
+#define SET_SW_DATA3(data, desc) set_sw_data(3, data, desc)
+
 static void set_org_pkt_info(dma_addr_t buff, u32 buff_len,
 			     struct knav_dma_desc *desc)
 {
@@ -581,7 +582,6 @@ static void netcp_free_rx_desc_chain(struct netcp_intf *netcp,
 	dma_addr_t dma_desc, dma_buf;
 	unsigned int buf_len, dma_sz = sizeof(*ndesc);
 	void *buf_ptr;
-	u32 pad[2];
 	u32 tmp;
 
 	get_words(&dma_desc, 1, &desc->next_desc);
@@ -593,14 +593,20 @@ static void netcp_free_rx_desc_chain(struct netcp_intf *netcp,
 			break;
 		}
 		get_pkt_info(&dma_buf, &tmp, &dma_desc, ndesc);
-		get_pad_ptr(&buf_ptr, ndesc);
+		/* warning!!!! We are retrieving the virtual ptr in the sw_data
+		 * field as a 32bit value. Will not work on 64bit machines
+		 */
+		buf_ptr = (void *)GET_SW_DATA0(ndesc);
+		buf_len = (int)GET_SW_DATA1(desc);
 		dma_unmap_page(netcp->dev, dma_buf, PAGE_SIZE, DMA_FROM_DEVICE);
 		__free_page(buf_ptr);
 		knav_pool_desc_put(netcp->rx_pool, desc);
 	}
-
-	get_pad_info(&pad[0], &pad[1], &buf_len, desc);
-	buf_ptr = (void *)(uintptr_t)(pad[0] + ((u64)pad[1] << 32));
+	/* warning!!!! We are retrieving the virtual ptr in the sw_data
+	 * field as a 32bit value. Will not work on 64bit machines
+	 */
+	buf_ptr = (void *)GET_SW_DATA0(desc);
+	buf_len = (int)GET_SW_DATA1(desc);
 
 	if (buf_ptr)
 		netcp_frag_free(buf_len <= PAGE_SIZE, buf_ptr);
@@ -639,7 +645,6 @@ static int netcp_process_one_rx_packet(struct netcp_intf *netcp)
 	dma_addr_t dma_desc, dma_buff;
 	struct netcp_packet p_info;
 	struct sk_buff *skb;
-	u32 pad[2];
 	void *org_buf_ptr;
 
 	dma_desc = knav_queue_pop(netcp->rx_queue, &dma_sz);
@@ -653,8 +658,11 @@ static int netcp_process_one_rx_packet(struct netcp_intf *netcp)
 	}
 
 	get_pkt_info(&dma_buff, &buf_len, &dma_desc, desc);
-	get_pad_info(&pad[0], &pad[1], &org_buf_len, desc);
-	org_buf_ptr = (void *)(uintptr_t)(pad[0] + ((u64)pad[1] << 32));
+	/* warning!!!! We are retrieving the virtual ptr in the sw_data
+	 * field as a 32bit value. Will not work on 64bit machines
+	 */
+	org_buf_ptr = (void *)GET_SW_DATA0(desc);
+	org_buf_len = (int)GET_SW_DATA1(desc);
 
 	if (unlikely(!org_buf_ptr)) {
 		dev_err(netcp->ndev_dev, "NULL bufptr in desc\n");
@@ -679,7 +687,6 @@ static int netcp_process_one_rx_packet(struct netcp_intf *netcp)
 	/* Fill in the page fragment list */
 	while (dma_desc) {
 		struct page *page;
-		void *ptr;
 
 		ndesc = knav_pool_desc_unmap(netcp->rx_pool, dma_desc, dma_sz);
 		if (unlikely(!ndesc)) {
@@ -688,8 +695,10 @@ static int netcp_process_one_rx_packet(struct netcp_intf *netcp)
 		}
 
 		get_pkt_info(&dma_buff, &buf_len, &dma_desc, ndesc);
-		get_pad_ptr(&ptr, ndesc);
-		page = ptr;
+		/* warning!!!! We are retrieving the virtual ptr in the sw_data
+		 * field as a 32bit value. Will not work on 64bit machines
+		 */
+		page = (struct page *)GET_SW_DATA0(desc);
 
 		if (likely(dma_buff && buf_len && page)) {
 			dma_unmap_page(netcp->dev, dma_buff, PAGE_SIZE,
@@ -777,7 +786,10 @@ static void netcp_free_rx_buf(struct netcp_intf *netcp, int fdq)
 		}
 
 		get_org_pkt_info(&dma, &buf_len, desc);
-		get_pad_ptr(&buf_ptr, desc);
+		/* warning!!!! We are retrieving the virtual ptr in the sw_data
+		 * field as a 32bit value. Will not work on 64bit machines
+		 */
+		buf_ptr = (void *)GET_SW_DATA0(desc);
 
 		if (unlikely(!dma)) {
 			dev_err(netcp->ndev_dev, "NULL orig_buff in desc\n");
@@ -829,7 +841,7 @@ static int netcp_allocate_rx_buf(struct netcp_intf *netcp, int fdq)
 	struct page *page;
 	dma_addr_t dma;
 	void *bufptr;
-	u32 pad[3];
+	u32 sw_data[2];
 
 	/* Allocate descriptor */
 	hwdesc = knav_pool_desc_get(netcp->rx_pool);
@@ -846,7 +858,7 @@ static int netcp_allocate_rx_buf(struct netcp_intf *netcp, int fdq)
 				SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
 
 		bufptr = netdev_alloc_frag(primary_buf_len);
-		pad[2] = primary_buf_len;
+		sw_data[1] = primary_buf_len;
 
 		if (unlikely(!bufptr)) {
 			dev_warn_ratelimited(netcp->ndev_dev,
@@ -858,9 +870,10 @@ static int netcp_allocate_rx_buf(struct netcp_intf *netcp, int fdq)
 		if (unlikely(dma_mapping_error(netcp->dev, dma)))
 			goto fail;
 
-		pad[0] = lower_32_bits((uintptr_t)bufptr);
-		pad[1] = upper_32_bits((uintptr_t)bufptr);
-
+		/* warning!!!! We are saving the virtual ptr in the sw_data
+		 * field as a 32bit value. Will not work on 64bit machines
+		 */
+		sw_data[0] = (u32)bufptr;
 	} else {
 		/* Allocate a secondary receive queue entry */
 		page = alloc_page(GFP_ATOMIC | GFP_DMA | __GFP_COLD);
@@ -870,9 +883,11 @@ static int netcp_allocate_rx_buf(struct netcp_intf *netcp, int fdq)
 		}
 		buf_len = PAGE_SIZE;
 		dma = dma_map_page(netcp->dev, page, 0, buf_len, DMA_TO_DEVICE);
-		pad[0] = lower_32_bits(dma);
-		pad[1] = upper_32_bits(dma);
-		pad[2] = 0;
+		/* warning!!!! We are saving the virtual ptr in the sw_data
+		 * field as a 32bit value. Will not work on 64bit machines
+		 */
+		sw_data[0] = (u32)page;
+		sw_data[1] = 0;
 	}
 
 	desc_info =  KNAV_DMA_DESC_PS_INFO_IN_DESC;
@@ -882,7 +897,8 @@ static int netcp_allocate_rx_buf(struct netcp_intf *netcp, int fdq)
 	pkt_info |= (netcp->rx_queue_id & KNAV_DMA_DESC_RETQ_MASK) <<
 		    KNAV_DMA_DESC_RETQ_SHIFT;
 	set_org_pkt_info(dma, buf_len, hwdesc);
-	set_pad_info(pad[0], pad[1], pad[2], hwdesc);
+	SET_SW_DATA0(sw_data[0], hwdesc);
+	SET_SW_DATA1(sw_data[1], hwdesc);
 	set_desc_info(desc_info, pkt_info, hwdesc);
 
 	/* Push to FDQs */
@@ -971,7 +987,6 @@ static int netcp_process_tx_compl_packets(struct netcp_intf *netcp,
 					  unsigned int budget)
 {
 	struct knav_dma_desc *desc;
-	void *ptr;
 	struct sk_buff *skb;
 	unsigned int dma_sz;
 	dma_addr_t dma;
@@ -988,8 +1003,10 @@ static int netcp_process_tx_compl_packets(struct netcp_intf *netcp,
 			continue;
 		}
 
-		get_pad_ptr(&ptr, desc);
-		skb = ptr;
+		/* warning!!!! We are retrieving the virtual ptr in the sw_data
+		 * field as a 32bit value. Will not work on 64bit machines
+		 */
+		skb = (struct sk_buff *)GET_SW_DATA0(desc);
 		netcp_free_tx_desc_chain(netcp, desc, dma_sz);
 		if (!skb) {
 			dev_err(netcp->ndev_dev, "No skb in Tx desc\n");
@@ -1194,10 +1211,10 @@ static int netcp_tx_submit_skb(struct netcp_intf *netcp,
 	}
 
 	set_words(&tmp, 1, &desc->packet_info);
-	tmp = lower_32_bits((uintptr_t)&skb);
-	set_words(&tmp, 1, &desc->pad[0]);
-	tmp = upper_32_bits((uintptr_t)&skb);
-	set_words(&tmp, 1, &desc->pad[1]);
+	/* warning!!!! We are saving the virtual ptr in the sw_data
+	 * field as a 32bit value. Will not work on 64bit machines
+	 */
+	SET_SW_DATA0((u32)skb, desc);
 
 	if (tx_pipe->flags & SWITCH_TO_PORT_IN_TAGINFO) {
 		tmp = tx_pipe->switch_to_port;
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 0b14ac3..0bf7edd 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -1039,6 +1039,34 @@ static netdev_tx_t geneve_xmit(struct sk_buff *skb, struct net_device *dev)
 	return geneve_xmit_skb(skb, dev, info);
 }
 
+static int __geneve_change_mtu(struct net_device *dev, int new_mtu, bool strict)
+{
+	/* The max_mtu calculation does not take account of GENEVE
+	 * options, to avoid excluding potentially valid
+	 * configurations.
+	 */
+	int max_mtu = IP_MAX_MTU - GENEVE_BASE_HLEN - sizeof(struct iphdr)
+		- dev->hard_header_len;
+
+	if (new_mtu < 68)
+		return -EINVAL;
+
+	if (new_mtu > max_mtu) {
+		if (strict)
+			return -EINVAL;
+
+		new_mtu = max_mtu;
+	}
+
+	dev->mtu = new_mtu;
+	return 0;
+}
+
+static int geneve_change_mtu(struct net_device *dev, int new_mtu)
+{
+	return __geneve_change_mtu(dev, new_mtu, true);
+}
+
 static int geneve_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb)
 {
 	struct ip_tunnel_info *info = skb_tunnel_info(skb);
@@ -1083,7 +1111,7 @@ static const struct net_device_ops geneve_netdev_ops = {
 	.ndo_stop		= geneve_stop,
 	.ndo_start_xmit		= geneve_xmit,
 	.ndo_get_stats64	= ip_tunnel_get_stats64,
-	.ndo_change_mtu		= eth_change_mtu,
+	.ndo_change_mtu		= geneve_change_mtu,
 	.ndo_validate_addr	= eth_validate_addr,
 	.ndo_set_mac_address	= eth_mac_addr,
 	.ndo_fill_metadata_dst	= geneve_fill_metadata_dst,
@@ -1150,6 +1178,7 @@ static void geneve_setup(struct net_device *dev)
 	dev->hw_features |= NETIF_F_GSO_SOFTWARE;
 
 	netif_keep_dst(dev);
+	dev->priv_flags &= ~IFF_TX_SKB_SHARING;
 	dev->priv_flags |= IFF_LIVE_ADDR_CHANGE | IFF_NO_QUEUE;
 	eth_hw_addr_random(dev);
 }
@@ -1441,12 +1470,23 @@ struct net_device *geneve_dev_create_fb(struct net *net, const char *name,
 		return dev;
 
 	err = geneve_configure(net, dev, &geneve_remote_unspec,
-			       0, 0, 0, htons(dst_port), true, 0);
-	if (err) {
-		free_netdev(dev);
-		return ERR_PTR(err);
-	}
+			       0, 0, 0, htons(dst_port), true,
+			       GENEVE_F_UDP_ZERO_CSUM6_RX);
+	if (err)
+		goto err;
+
+	/* openvswitch users expect packet sizes to be unrestricted,
+	 * so set the largest MTU we can.
+	 */
+	err = __geneve_change_mtu(dev, IP_MAX_MTU, false);
+	if (err)
+		goto err;
+
 	return dev;
+
+ err:
+	free_netdev(dev);
+	return ERR_PTR(err);
 }
 EXPORT_SYMBOL_GPL(geneve_dev_create_fb);
 
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 1d3a665..98e34fe 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -1089,6 +1089,9 @@ static int netvsc_probe(struct hv_device *dev,
 	net->ethtool_ops = &ethtool_ops;
 	SET_NETDEV_DEV(net, &dev->device);
 
+	/* We always need headroom for rndis header */
+	net->needed_headroom = RNDIS_AND_PPI_SIZE;
+
 	/* Notify the netvsc driver of the new device */
 	memset(&device_info, 0, sizeof(device_info));
 	device_info.ring_size = ring_size;
diff --git a/drivers/net/phy/bcm7xxx.c b/drivers/net/phy/bcm7xxx.c
index bf241a3..db507e3 100644
--- a/drivers/net/phy/bcm7xxx.c
+++ b/drivers/net/phy/bcm7xxx.c
@@ -250,10 +250,6 @@ static int bcm7xxx_config_init(struct phy_device *phydev)
 	phy_write(phydev, MII_BCM7XXX_AUX_MODE, MII_BCM7XX_64CLK_MDIO);
 	phy_read(phydev, MII_BCM7XXX_AUX_MODE);
 
-	/* Workaround only required for 100Mbits/sec capable PHYs */
-	if (phydev->supported & PHY_GBIT_FEATURES)
-		return 0;
-
 	/* set shadow mode 2 */
 	ret = phy_set_clr_bits(phydev, MII_BCM7XXX_TEST,
 			MII_BCM7XXX_SHD_MODE_2, MII_BCM7XXX_SHD_MODE_2);
@@ -270,7 +266,7 @@ static int bcm7xxx_config_init(struct phy_device *phydev)
 	phy_write(phydev, MII_BCM7XXX_100TX_FALSE_CAR, 0x7555);
 
 	/* reset shadow mode 2 */
-	ret = phy_set_clr_bits(phydev, MII_BCM7XXX_TEST, MII_BCM7XXX_SHD_MODE_2, 0);
+	ret = phy_set_clr_bits(phydev, MII_BCM7XXX_TEST, 0, MII_BCM7XXX_SHD_MODE_2);
 	if (ret < 0)
 		return ret;
 
@@ -307,11 +303,6 @@ static int bcm7xxx_suspend(struct phy_device *phydev)
 	return 0;
 }
 
-static int bcm7xxx_dummy_config_init(struct phy_device *phydev)
-{
-	return 0;
-}
-
 #define BCM7XXX_28NM_GPHY(_oui, _name)					\
 {									\
 	.phy_id		= (_oui),					\
@@ -337,7 +328,7 @@ static struct phy_driver bcm7xxx_driver[] = {
 	.phy_id         = PHY_ID_BCM7425,
 	.phy_id_mask    = 0xfffffff0,
 	.name           = "Broadcom BCM7425",
-	.features       = PHY_GBIT_FEATURES |
+	.features       = PHY_BASIC_FEATURES |
 			  SUPPORTED_Pause | SUPPORTED_Asym_Pause,
 	.flags          = PHY_IS_INTERNAL,
 	.config_init    = bcm7xxx_config_init,
@@ -349,7 +340,7 @@ static struct phy_driver bcm7xxx_driver[] = {
 	.phy_id         = PHY_ID_BCM7429,
 	.phy_id_mask    = 0xfffffff0,
 	.name           = "Broadcom BCM7429",
-	.features       = PHY_GBIT_FEATURES |
+	.features       = PHY_BASIC_FEATURES |
 			  SUPPORTED_Pause | SUPPORTED_Asym_Pause,
 	.flags          = PHY_IS_INTERNAL,
 	.config_init    = bcm7xxx_config_init,
@@ -361,7 +352,7 @@ static struct phy_driver bcm7xxx_driver[] = {
 	.phy_id         = PHY_ID_BCM7435,
 	.phy_id_mask    = 0xfffffff0,
 	.name           = "Broadcom BCM7435",
-	.features       = PHY_GBIT_FEATURES |
+	.features       = PHY_BASIC_FEATURES |
 			  SUPPORTED_Pause | SUPPORTED_Asym_Pause,
 	.flags          = PHY_IS_INTERNAL,
 	.config_init    = bcm7xxx_config_init,
@@ -369,30 +360,6 @@ static struct phy_driver bcm7xxx_driver[] = {
 	.read_status    = genphy_read_status,
 	.suspend        = bcm7xxx_suspend,
 	.resume         = bcm7xxx_config_init,
-}, {
-	.phy_id		= PHY_BCM_OUI_4,
-	.phy_id_mask	= 0xffff0000,
-	.name		= "Broadcom BCM7XXX 40nm",
-	.features	= PHY_GBIT_FEATURES |
-			  SUPPORTED_Pause | SUPPORTED_Asym_Pause,
-	.flags		= PHY_IS_INTERNAL,
-	.config_init	= bcm7xxx_config_init,
-	.config_aneg	= genphy_config_aneg,
-	.read_status	= genphy_read_status,
-	.suspend	= bcm7xxx_suspend,
-	.resume		= bcm7xxx_config_init,
-}, {
-	.phy_id		= PHY_BCM_OUI_5,
-	.phy_id_mask	= 0xffffff00,
-	.name		= "Broadcom BCM7XXX 65nm",
-	.features	= PHY_BASIC_FEATURES |
-			  SUPPORTED_Pause | SUPPORTED_Asym_Pause,
-	.flags		= PHY_IS_INTERNAL,
-	.config_init	= bcm7xxx_dummy_config_init,
-	.config_aneg	= genphy_config_aneg,
-	.read_status	= genphy_read_status,
-	.suspend	= bcm7xxx_suspend,
-	.resume		= bcm7xxx_config_init,
 } };
 
 static struct mdio_device_id __maybe_unused bcm7xxx_tbl[] = {
@@ -404,8 +371,6 @@ static struct mdio_device_id __maybe_unused bcm7xxx_tbl[] = {
 	{ PHY_ID_BCM7439, 0xfffffff0, },
 	{ PHY_ID_BCM7435, 0xfffffff0, },
 	{ PHY_ID_BCM7445, 0xfffffff0, },
-	{ PHY_BCM_OUI_4, 0xffff0000 },
-	{ PHY_BCM_OUI_5, 0xffffff00 },
 	{ }
 };
 
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index e3eb964..ab1d0fc 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -446,6 +446,12 @@ static int m88e1510_config_aneg(struct phy_device *phydev)
 	if (err < 0)
 		return err;
 
+	return 0;
+}
+
+static int marvell_config_init(struct phy_device *phydev)
+{
+	/* Set registers from marvell,reg-init DT property */
 	return marvell_of_reg_init(phydev);
 }
 
@@ -495,7 +501,7 @@ static int m88e1116r_config_init(struct phy_device *phydev)
 
 	mdelay(500);
 
-	return 0;
+	return marvell_config_init(phydev);
 }
 
 static int m88e3016_config_init(struct phy_device *phydev)
@@ -514,7 +520,7 @@ static int m88e3016_config_init(struct phy_device *phydev)
 	if (reg < 0)
 		return reg;
 
-	return 0;
+	return marvell_config_init(phydev);
 }
 
 static int m88e1111_config_init(struct phy_device *phydev)
@@ -1078,6 +1084,7 @@ static struct phy_driver marvell_drivers[] = {
 		.features = PHY_GBIT_FEATURES,
 		.probe = marvell_probe,
 		.flags = PHY_HAS_INTERRUPT,
+		.config_init = &marvell_config_init,
 		.config_aneg = &marvell_config_aneg,
 		.read_status = &genphy_read_status,
 		.ack_interrupt = &marvell_ack_interrupt,
@@ -1149,6 +1156,7 @@ static struct phy_driver marvell_drivers[] = {
 		.features = PHY_GBIT_FEATURES,
 		.flags = PHY_HAS_INTERRUPT,
 		.probe = marvell_probe,
+		.config_init = &marvell_config_init,
 		.config_aneg = &m88e1121_config_aneg,
 		.read_status = &marvell_read_status,
 		.ack_interrupt = &marvell_ack_interrupt,
@@ -1167,6 +1175,7 @@ static struct phy_driver marvell_drivers[] = {
 		.features = PHY_GBIT_FEATURES,
 		.flags = PHY_HAS_INTERRUPT,
 		.probe = marvell_probe,
+		.config_init = &marvell_config_init,
 		.config_aneg = &m88e1318_config_aneg,
 		.read_status = &marvell_read_status,
 		.ack_interrupt = &marvell_ack_interrupt,
@@ -1259,6 +1268,7 @@ static struct phy_driver marvell_drivers[] = {
 		.features = PHY_GBIT_FEATURES,
 		.flags = PHY_HAS_INTERRUPT,
 		.probe = marvell_probe,
+		.config_init = &marvell_config_init,
 		.config_aneg = &m88e1510_config_aneg,
 		.read_status = &marvell_read_status,
 		.ack_interrupt = &marvell_ack_interrupt,
@@ -1277,6 +1287,7 @@ static struct phy_driver marvell_drivers[] = {
 		.features = PHY_GBIT_FEATURES,
 		.flags = PHY_HAS_INTERRUPT,
 		.probe = marvell_probe,
+		.config_init = &marvell_config_init,
 		.config_aneg = &m88e1510_config_aneg,
 		.read_status = &marvell_read_status,
 		.ack_interrupt = &marvell_ack_interrupt,
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index bad3f00..e551f3a 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1410,7 +1410,7 @@ int genphy_config_init(struct phy_device *phydev)
 
 	features = (SUPPORTED_TP | SUPPORTED_MII
 			| SUPPORTED_AUI | SUPPORTED_FIBRE |
-			SUPPORTED_BNC);
+			SUPPORTED_BNC | SUPPORTED_Pause | SUPPORTED_Asym_Pause);
 
 	/* Do we support autonegotiation? */
 	val = phy_read(phydev, MII_BMSR);
diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c
index f3c6302..4ddae81 100644
--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
@@ -395,6 +395,8 @@ static int pppoe_rcv_core(struct sock *sk, struct sk_buff *skb)
 
 		if (!__pppoe_xmit(sk_pppox(relay_po), skb))
 			goto abort_put;
+
+		sock_put(sk_pppox(relay_po));
 	} else {
 		if (sock_queue_rcv_skb(sk, skb))
 			goto abort_kfree;
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 7f83504..cdde590 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -395,6 +395,10 @@ config USB_NET_RNDIS_HOST
 	  The protocol specification is incomplete, and is controlled by
 	  (and for) Microsoft; it isn't an "Open" ecosystem or market.
 
+config USB_NET_CDC_SUBSET_ENABLE
+	tristate
+	depends on USB_NET_CDC_SUBSET
+
 config USB_NET_CDC_SUBSET
 	tristate "Simple USB Network Links (CDC Ethernet subset)"
 	depends on USB_USBNET
@@ -413,6 +417,7 @@ config USB_NET_CDC_SUBSET
 config USB_ALI_M5632
 	bool "ALi M5632 based 'USB 2.0 Data Link' cables"
 	depends on USB_NET_CDC_SUBSET
+	select USB_NET_CDC_SUBSET_ENABLE
 	help
 	  Choose this option if you're using a host-to-host cable
 	  based on this design, which supports USB 2.0 high speed.
@@ -420,6 +425,7 @@ config USB_ALI_M5632
 config USB_AN2720
 	bool "AnchorChips 2720 based cables (Xircom PGUNET, ...)"
 	depends on USB_NET_CDC_SUBSET
+	select USB_NET_CDC_SUBSET_ENABLE
 	help
 	  Choose this option if you're using a host-to-host cable
 	  based on this design.  Note that AnchorChips is now a
@@ -428,6 +434,7 @@ config USB_AN2720
 config USB_BELKIN
 	bool "eTEK based host-to-host cables (Advance, Belkin, ...)"
 	depends on USB_NET_CDC_SUBSET
+	select USB_NET_CDC_SUBSET_ENABLE
 	default y
 	help
 	  Choose this option if you're using a host-to-host cable
@@ -437,6 +444,7 @@ config USB_BELKIN
 config USB_ARMLINUX
 	bool "Embedded ARM Linux links (iPaq, ...)"
 	depends on USB_NET_CDC_SUBSET
+	select USB_NET_CDC_SUBSET_ENABLE
 	default y
 	help
 	  Choose this option to support the "usb-eth" networking driver
@@ -454,6 +462,7 @@ config USB_ARMLINUX
 config USB_EPSON2888
 	bool "Epson 2888 based firmware (DEVELOPMENT)"
 	depends on USB_NET_CDC_SUBSET
+	select USB_NET_CDC_SUBSET_ENABLE
 	help
 	  Choose this option to support the usb networking links used
 	  by some sample firmware from Epson.
@@ -461,6 +470,7 @@ config USB_EPSON2888
 config USB_KC2190
 	bool "KT Technology KC2190 based cables (InstaNet)"
 	depends on USB_NET_CDC_SUBSET
+	select USB_NET_CDC_SUBSET_ENABLE
 	help
 	  Choose this option if you're using a host-to-host cable
 	  with one of these chips.
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index b5f0406..37fb46ae 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -23,7 +23,7 @@ obj-$(CONFIG_USB_NET_GL620A)	+= gl620a.o
 obj-$(CONFIG_USB_NET_NET1080)	+= net1080.o
 obj-$(CONFIG_USB_NET_PLUSB)	+= plusb.o
 obj-$(CONFIG_USB_NET_RNDIS_HOST)	+= rndis_host.o
-obj-$(CONFIG_USB_NET_CDC_SUBSET)	+= cdc_subset.o
+obj-$(CONFIG_USB_NET_CDC_SUBSET_ENABLE)	+= cdc_subset.o
 obj-$(CONFIG_USB_NET_ZAURUS)	+= zaurus.o
 obj-$(CONFIG_USB_NET_MCS7830)	+= mcs7830.o
 obj-$(CONFIG_USB_USBNET)	+= usbnet.o
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 23e9880..570deef 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -637,6 +637,7 @@ static const struct usb_device_id products[] = {
 
 	/* 3. Combined interface devices matching on interface number */
 	{QMI_FIXED_INTF(0x0408, 0xea42, 4)},	/* Yota / Megafon M100-1 */
+	{QMI_FIXED_INTF(0x05c6, 0x6001, 3)},	/* 4G LTE usb-modem U901 */
 	{QMI_FIXED_INTF(0x05c6, 0x7000, 0)},
 	{QMI_FIXED_INTF(0x05c6, 0x7001, 1)},
 	{QMI_FIXED_INTF(0x05c6, 0x7002, 1)},
diff --git a/drivers/net/vmxnet3/vmxnet3_defs.h b/drivers/net/vmxnet3/vmxnet3_defs.h
index 221a530..72ba8ae 100644
--- a/drivers/net/vmxnet3/vmxnet3_defs.h
+++ b/drivers/net/vmxnet3/vmxnet3_defs.h
@@ -377,7 +377,7 @@ union Vmxnet3_GenericDesc {
 #define VMXNET3_TX_RING_MAX_SIZE   4096
 #define VMXNET3_TC_RING_MAX_SIZE   4096
 #define VMXNET3_RX_RING_MAX_SIZE   4096
-#define VMXNET3_RX_RING2_MAX_SIZE  2048
+#define VMXNET3_RX_RING2_MAX_SIZE  4096
 #define VMXNET3_RC_RING_MAX_SIZE   8192
 
 /* a list of reasons for queue stop */
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index bdb8a6c..729c344 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -69,10 +69,10 @@
 /*
  * Version numbers
  */
-#define VMXNET3_DRIVER_VERSION_STRING   "1.4.5.0-k"
+#define VMXNET3_DRIVER_VERSION_STRING   "1.4.6.0-k"
 
 /* a 32-bit int, each byte encode a verion number in VMXNET3_DRIVER_VERSION */
-#define VMXNET3_DRIVER_VERSION_NUM      0x01040500
+#define VMXNET3_DRIVER_VERSION_NUM      0x01040600
 
 #if defined(CONFIG_PCI_MSI)
 	/* RSS only makes sense if MSI-X is supported. */
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 6543918..e6944b2 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2171,9 +2171,11 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
 #endif
 	}
 
-	if (vxlan->flags & VXLAN_F_COLLECT_METADATA &&
-	    info && info->mode & IP_TUNNEL_INFO_TX) {
-		vxlan_xmit_one(skb, dev, NULL, false);
+	if (vxlan->flags & VXLAN_F_COLLECT_METADATA) {
+		if (info && info->mode & IP_TUNNEL_INFO_TX)
+			vxlan_xmit_one(skb, dev, NULL, false);
+		else
+			kfree_skb(skb);
 		return NETDEV_TX_OK;
 	}
 
@@ -2367,29 +2369,43 @@ static void vxlan_set_multicast_list(struct net_device *dev)
 {
 }
 
-static int vxlan_change_mtu(struct net_device *dev, int new_mtu)
+static int __vxlan_change_mtu(struct net_device *dev,
+			      struct net_device *lowerdev,
+			      struct vxlan_rdst *dst, int new_mtu, bool strict)
 {
-	struct vxlan_dev *vxlan = netdev_priv(dev);
-	struct vxlan_rdst *dst = &vxlan->default_dst;
-	struct net_device *lowerdev;
-	int max_mtu;
+	int max_mtu = IP_MAX_MTU;
 
-	lowerdev = __dev_get_by_index(vxlan->net, dst->remote_ifindex);
-	if (lowerdev == NULL)
-		return eth_change_mtu(dev, new_mtu);
+	if (lowerdev)
+		max_mtu = lowerdev->mtu;
 
 	if (dst->remote_ip.sa.sa_family == AF_INET6)
-		max_mtu = lowerdev->mtu - VXLAN6_HEADROOM;
+		max_mtu -= VXLAN6_HEADROOM;
 	else
-		max_mtu = lowerdev->mtu - VXLAN_HEADROOM;
+		max_mtu -= VXLAN_HEADROOM;
 
-	if (new_mtu < 68 || new_mtu > max_mtu)
+	if (new_mtu < 68)
 		return -EINVAL;
 
+	if (new_mtu > max_mtu) {
+		if (strict)
+			return -EINVAL;
+
+		new_mtu = max_mtu;
+	}
+
 	dev->mtu = new_mtu;
 	return 0;
 }
 
+static int vxlan_change_mtu(struct net_device *dev, int new_mtu)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_rdst *dst = &vxlan->default_dst;
+	struct net_device *lowerdev = __dev_get_by_index(vxlan->net,
+							 dst->remote_ifindex);
+	return __vxlan_change_mtu(dev, lowerdev, dst, new_mtu, true);
+}
+
 static int egress_ipv4_tun_info(struct net_device *dev, struct sk_buff *skb,
 				struct ip_tunnel_info *info,
 				__be16 sport, __be16 dport)
@@ -2523,6 +2539,7 @@ static void vxlan_setup(struct net_device *dev)
 	dev->hw_features |= NETIF_F_GSO_SOFTWARE;
 	dev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX;
 	netif_keep_dst(dev);
+	dev->priv_flags &= ~IFF_TX_SKB_SHARING;
 	dev->priv_flags |= IFF_LIVE_ADDR_CHANGE | IFF_NO_QUEUE;
 
 	INIT_LIST_HEAD(&vxlan->next);
@@ -2765,6 +2782,7 @@ static int vxlan_dev_configure(struct net *src_net, struct net_device *dev,
 	int err;
 	bool use_ipv6 = false;
 	__be16 default_port = vxlan->cfg.dst_port;
+	struct net_device *lowerdev = NULL;
 
 	vxlan->net = src_net;
 
@@ -2785,9 +2803,7 @@ static int vxlan_dev_configure(struct net *src_net, struct net_device *dev,
 	}
 
 	if (conf->remote_ifindex) {
-		struct net_device *lowerdev
-			 = __dev_get_by_index(src_net, conf->remote_ifindex);
-
+		lowerdev = __dev_get_by_index(src_net, conf->remote_ifindex);
 		dst->remote_ifindex = conf->remote_ifindex;
 
 		if (!lowerdev) {
@@ -2811,6 +2827,12 @@ static int vxlan_dev_configure(struct net *src_net, struct net_device *dev,
 		needed_headroom = lowerdev->hard_header_len;
 	}
 
+	if (conf->mtu) {
+		err = __vxlan_change_mtu(dev, lowerdev, dst, conf->mtu, false);
+		if (err)
+			return err;
+	}
+
 	if (use_ipv6 || conf->flags & VXLAN_F_COLLECT_METADATA)
 		needed_headroom += VXLAN6_HEADROOM;
 	else
diff --git a/drivers/net/wan/dscc4.c b/drivers/net/wan/dscc4.c
index 7a72407..6292259 100644
--- a/drivers/net/wan/dscc4.c
+++ b/drivers/net/wan/dscc4.c
@@ -1626,7 +1626,7 @@ try:
 		if (state & Xpr) {
 			void __iomem *scc_addr;
 			unsigned long ring;
-			int i;
+			unsigned int i;
 
 			/*
 			 * - the busy condition happens (sometimes);
diff --git a/drivers/net/wireless/intel/iwlwifi/Kconfig b/drivers/net/wireless/intel/iwlwifi/Kconfig
index 8660677..7438fbe 100644
--- a/drivers/net/wireless/intel/iwlwifi/Kconfig
+++ b/drivers/net/wireless/intel/iwlwifi/Kconfig
@@ -53,7 +53,6 @@ config IWLWIFI_LEDS
 
 config IWLDVM
 	tristate "Intel Wireless WiFi DVM Firmware support"
-	depends on m
 	help
 	  This is the driver that supports the DVM firmware. The list
 	  of the devices that use this firmware is available here:
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-8000.c b/drivers/net/wireless/intel/iwlwifi/iwl-8000.c
index c84a029..bce9b3420 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-8000.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-8000.c
@@ -7,6 +7,7 @@
  *
  * Copyright(c) 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2014 - 2015 Intel Mobile Communications GmbH
+ * Copyright(c) 2016 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -70,12 +71,15 @@
 
 /* Highest firmware API version supported */
 #define IWL8000_UCODE_API_MAX	20
+#define IWL8265_UCODE_API_MAX	20
 
 /* Oldest version we won't warn about */
 #define IWL8000_UCODE_API_OK	13
+#define IWL8265_UCODE_API_OK	20
 
 /* Lowest firmware API version supported */
 #define IWL8000_UCODE_API_MIN	13
+#define IWL8265_UCODE_API_MIN	20
 
 /* NVM versions */
 #define IWL8000_NVM_VERSION		0x0a1d
@@ -93,6 +97,10 @@
 #define IWL8000_MODULE_FIRMWARE(api) \
 	IWL8000_FW_PRE "-" __stringify(api) ".ucode"
 
+#define IWL8265_FW_PRE "iwlwifi-8265-"
+#define IWL8265_MODULE_FIRMWARE(api) \
+	IWL8265_FW_PRE __stringify(api) ".ucode"
+
 #define NVM_HW_SECTION_NUM_FAMILY_8000		10
 #define DEFAULT_NVM_FILE_FAMILY_8000B		"nvmData-8000B"
 #define DEFAULT_NVM_FILE_FAMILY_8000C		"nvmData-8000C"
@@ -144,10 +152,7 @@ static const struct iwl_tt_params iwl8000_tt_params = {
 	.support_tx_backoff = true,
 };
 
-#define IWL_DEVICE_8000							\
-	.ucode_api_max = IWL8000_UCODE_API_MAX,				\
-	.ucode_api_ok = IWL8000_UCODE_API_OK,				\
-	.ucode_api_min = IWL8000_UCODE_API_MIN,				\
+#define IWL_DEVICE_8000_COMMON						\
 	.device_family = IWL_DEVICE_FAMILY_8000,			\
 	.max_inst_size = IWL60_RTC_INST_SIZE,				\
 	.max_data_size = IWL60_RTC_DATA_SIZE,				\
@@ -167,10 +172,28 @@ static const struct iwl_tt_params iwl8000_tt_params = {
 	.thermal_params = &iwl8000_tt_params,				\
 	.apmg_not_supported = true
 
+#define IWL_DEVICE_8000							\
+	IWL_DEVICE_8000_COMMON,						\
+	.ucode_api_max = IWL8000_UCODE_API_MAX,				\
+	.ucode_api_ok = IWL8000_UCODE_API_OK,				\
+	.ucode_api_min = IWL8000_UCODE_API_MIN				\
+
+#define IWL_DEVICE_8260							\
+	IWL_DEVICE_8000_COMMON,						\
+	.ucode_api_max = IWL8000_UCODE_API_MAX,				\
+	.ucode_api_ok = IWL8000_UCODE_API_OK,				\
+	.ucode_api_min = IWL8000_UCODE_API_MIN				\
+
+#define IWL_DEVICE_8265							\
+	IWL_DEVICE_8000_COMMON,						\
+	.ucode_api_max = IWL8265_UCODE_API_MAX,				\
+	.ucode_api_ok = IWL8265_UCODE_API_OK,				\
+	.ucode_api_min = IWL8265_UCODE_API_MIN				\
+
 const struct iwl_cfg iwl8260_2n_cfg = {
 	.name = "Intel(R) Dual Band Wireless N 8260",
 	.fw_name_pre = IWL8000_FW_PRE,
-	IWL_DEVICE_8000,
+	IWL_DEVICE_8260,
 	.ht_params = &iwl8000_ht_params,
 	.nvm_ver = IWL8000_NVM_VERSION,
 	.nvm_calib_ver = IWL8000_TX_POWER_VERSION,
@@ -179,7 +202,7 @@ const struct iwl_cfg iwl8260_2n_cfg = {
 const struct iwl_cfg iwl8260_2ac_cfg = {
 	.name = "Intel(R) Dual Band Wireless AC 8260",
 	.fw_name_pre = IWL8000_FW_PRE,
-	IWL_DEVICE_8000,
+	IWL_DEVICE_8260,
 	.ht_params = &iwl8000_ht_params,
 	.nvm_ver = IWL8000_NVM_VERSION,
 	.nvm_calib_ver = IWL8000_TX_POWER_VERSION,
@@ -188,8 +211,8 @@ const struct iwl_cfg iwl8260_2ac_cfg = {
 
 const struct iwl_cfg iwl8265_2ac_cfg = {
 	.name = "Intel(R) Dual Band Wireless AC 8265",
-	.fw_name_pre = IWL8000_FW_PRE,
-	IWL_DEVICE_8000,
+	.fw_name_pre = IWL8265_FW_PRE,
+	IWL_DEVICE_8265,
 	.ht_params = &iwl8000_ht_params,
 	.nvm_ver = IWL8000_NVM_VERSION,
 	.nvm_calib_ver = IWL8000_TX_POWER_VERSION,
@@ -209,7 +232,7 @@ const struct iwl_cfg iwl4165_2ac_cfg = {
 const struct iwl_cfg iwl8260_2ac_sdio_cfg = {
 	.name = "Intel(R) Dual Band Wireless-AC 8260",
 	.fw_name_pre = IWL8000_FW_PRE,
-	IWL_DEVICE_8000,
+	IWL_DEVICE_8260,
 	.ht_params = &iwl8000_ht_params,
 	.nvm_ver = IWL8000_NVM_VERSION,
 	.nvm_calib_ver = IWL8000_TX_POWER_VERSION,
@@ -236,3 +259,4 @@ const struct iwl_cfg iwl4165_2ac_sdio_cfg = {
 };
 
 MODULE_FIRMWARE(IWL8000_MODULE_FIRMWARE(IWL8000_UCODE_API_OK));
+MODULE_FIRMWARE(IWL8265_MODULE_FIRMWARE(IWL8265_UCODE_API_OK));
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 7acb490..ab4c2a0 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -243,8 +243,10 @@ static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 	if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) {
 		char rev_step = 'A' + CSR_HW_REV_STEP(drv->trans->hw_rev);
 
-		snprintf(drv->firmware_name, sizeof(drv->firmware_name),
-			 "%s%c-%s.ucode", name_pre, rev_step, tag);
+		if (rev_step != 'A')
+			snprintf(drv->firmware_name,
+				 sizeof(drv->firmware_name), "%s%c-%s.ucode",
+				 name_pre, rev_step, tag);
 	}
 
 	IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n",
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index 9a15642..ea1e177 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -1298,6 +1298,10 @@ int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
 		return -EBUSY;
 	}
 
+	/* we don't support "match all" in the firmware */
+	if (!req->n_match_sets)
+		return -EOPNOTSUPP;
+
 	ret = iwl_mvm_check_running_scans(mvm, type);
 	if (ret)
 		return ret;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
index cc3888e..73c9559 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
@@ -490,6 +490,15 @@ static inline void iwl_enable_interrupts(struct iwl_trans *trans)
 	iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask);
 }
 
+static inline void iwl_enable_fw_load_int(struct iwl_trans *trans)
+{
+	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+
+	IWL_DEBUG_ISR(trans, "Enabling FW load interrupt\n");
+	trans_pcie->inta_mask = CSR_INT_BIT_FH_TX;
+	iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask);
+}
+
 static inline void iwl_enable_rfkill_int(struct iwl_trans *trans)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
index ccafbd8..152cf9a 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -1438,9 +1438,11 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id)
 			 inta & ~trans_pcie->inta_mask);
 	}
 
-	/* Re-enable all interrupts */
-	/* only Re-enable if disabled by irq */
-	if (test_bit(STATUS_INT_ENABLED, &trans->status))
+	/* we are loading the firmware, enable FH_TX interrupt only */
+	if (handled & CSR_INT_BIT_FH_TX)
+		iwl_enable_fw_load_int(trans);
+	/* only Re-enable all interrupt if disabled by irq */
+	else if (test_bit(STATUS_INT_ENABLED, &trans->status))
 		iwl_enable_interrupts(trans);
 	/* Re-enable RF_KILL if it occurred */
 	else if (handled & CSR_INT_BIT_RF_KILL)
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index d60a467..5a854c6 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -1021,82 +1021,6 @@ static int iwl_pcie_load_given_ucode_8000(struct iwl_trans *trans,
 					       &first_ucode_section);
 }
 
-static int iwl_trans_pcie_start_fw(struct iwl_trans *trans,
-				   const struct fw_img *fw, bool run_in_rfkill)
-{
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	bool hw_rfkill;
-	int ret;
-
-	mutex_lock(&trans_pcie->mutex);
-
-	/* Someone called stop_device, don't try to start_fw */
-	if (trans_pcie->is_down) {
-		IWL_WARN(trans,
-			 "Can't start_fw since the HW hasn't been started\n");
-		ret = EIO;
-		goto out;
-	}
-
-	/* This may fail if AMT took ownership of the device */
-	if (iwl_pcie_prepare_card_hw(trans)) {
-		IWL_WARN(trans, "Exit HW not ready\n");
-		ret = -EIO;
-		goto out;
-	}
-
-	iwl_enable_rfkill_int(trans);
-
-	/* If platform's RF_KILL switch is NOT set to KILL */
-	hw_rfkill = iwl_is_rfkill_set(trans);
-	if (hw_rfkill)
-		set_bit(STATUS_RFKILL, &trans->status);
-	else
-		clear_bit(STATUS_RFKILL, &trans->status);
-	iwl_trans_pcie_rf_kill(trans, hw_rfkill);
-	if (hw_rfkill && !run_in_rfkill) {
-		ret = -ERFKILL;
-		goto out;
-	}
-
-	iwl_write32(trans, CSR_INT, 0xFFFFFFFF);
-
-	ret = iwl_pcie_nic_init(trans);
-	if (ret) {
-		IWL_ERR(trans, "Unable to init nic\n");
-		goto out;
-	}
-
-	/* make sure rfkill handshake bits are cleared */
-	iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-	iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR,
-		    CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
-	/* clear (again), then enable host interrupts */
-	iwl_write32(trans, CSR_INT, 0xFFFFFFFF);
-	iwl_enable_interrupts(trans);
-
-	/* really make sure rfkill handshake bits are cleared */
-	iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-	iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-
-	/* Load the given image to the HW */
-	if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
-		ret = iwl_pcie_load_given_ucode_8000(trans, fw);
-	else
-		ret = iwl_pcie_load_given_ucode(trans, fw);
-
-out:
-	mutex_unlock(&trans_pcie->mutex);
-	return ret;
-}
-
-static void iwl_trans_pcie_fw_alive(struct iwl_trans *trans, u32 scd_addr)
-{
-	iwl_pcie_reset_ict(trans);
-	iwl_pcie_tx_start(trans, scd_addr);
-}
-
 static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
@@ -1127,7 +1051,8 @@ static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
 	 * already dead.
 	 */
 	if (test_and_clear_bit(STATUS_DEVICE_ENABLED, &trans->status)) {
-		IWL_DEBUG_INFO(trans, "DEVICE_ENABLED bit was set and is now cleared\n");
+		IWL_DEBUG_INFO(trans,
+			       "DEVICE_ENABLED bit was set and is now cleared\n");
 		iwl_pcie_tx_stop(trans);
 		iwl_pcie_rx_stop(trans);
 
@@ -1161,7 +1086,6 @@ static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
 	iwl_disable_interrupts(trans);
 	spin_unlock(&trans_pcie->irq_lock);
 
-
 	/* clear all status bits */
 	clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status);
 	clear_bit(STATUS_INT_ENABLED, &trans->status);
@@ -1194,10 +1118,116 @@ static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
 	if (hw_rfkill != was_hw_rfkill)
 		iwl_trans_pcie_rf_kill(trans, hw_rfkill);
 
-	/* re-take ownership to prevent other users from stealing the deivce */
+	/* re-take ownership to prevent other users from stealing the device */
 	iwl_pcie_prepare_card_hw(trans);
 }
 
+static int iwl_trans_pcie_start_fw(struct iwl_trans *trans,
+				   const struct fw_img *fw, bool run_in_rfkill)
+{
+	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+	bool hw_rfkill;
+	int ret;
+
+	/* This may fail if AMT took ownership of the device */
+	if (iwl_pcie_prepare_card_hw(trans)) {
+		IWL_WARN(trans, "Exit HW not ready\n");
+		ret = -EIO;
+		goto out;
+	}
+
+	iwl_enable_rfkill_int(trans);
+
+	iwl_write32(trans, CSR_INT, 0xFFFFFFFF);
+
+	/*
+	 * We enabled the RF-Kill interrupt and the handler may very
+	 * well be running. Disable the interrupts to make sure no other
+	 * interrupt can be fired.
+	 */
+	iwl_disable_interrupts(trans);
+
+	/* Make sure it finished running */
+	synchronize_irq(trans_pcie->pci_dev->irq);
+
+	mutex_lock(&trans_pcie->mutex);
+
+	/* If platform's RF_KILL switch is NOT set to KILL */
+	hw_rfkill = iwl_is_rfkill_set(trans);
+	if (hw_rfkill)
+		set_bit(STATUS_RFKILL, &trans->status);
+	else
+		clear_bit(STATUS_RFKILL, &trans->status);
+	iwl_trans_pcie_rf_kill(trans, hw_rfkill);
+	if (hw_rfkill && !run_in_rfkill) {
+		ret = -ERFKILL;
+		goto out;
+	}
+
+	/* Someone called stop_device, don't try to start_fw */
+	if (trans_pcie->is_down) {
+		IWL_WARN(trans,
+			 "Can't start_fw since the HW hasn't been started\n");
+		ret = -EIO;
+		goto out;
+	}
+
+	/* make sure rfkill handshake bits are cleared */
+	iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+	iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR,
+		    CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+	/* clear (again), then enable host interrupts */
+	iwl_write32(trans, CSR_INT, 0xFFFFFFFF);
+
+	ret = iwl_pcie_nic_init(trans);
+	if (ret) {
+		IWL_ERR(trans, "Unable to init nic\n");
+		goto out;
+	}
+
+	/*
+	 * Now, we load the firmware and don't want to be interrupted, even
+	 * by the RF-Kill interrupt (hence mask all the interrupt besides the
+	 * FH_TX interrupt which is needed to load the firmware). If the
+	 * RF-Kill switch is toggled, we will find out after having loaded
+	 * the firmware and return the proper value to the caller.
+	 */
+	iwl_enable_fw_load_int(trans);
+
+	/* really make sure rfkill handshake bits are cleared */
+	iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+	iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+	/* Load the given image to the HW */
+	if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
+		ret = iwl_pcie_load_given_ucode_8000(trans, fw);
+	else
+		ret = iwl_pcie_load_given_ucode(trans, fw);
+	iwl_enable_interrupts(trans);
+
+	/* re-check RF-Kill state since we may have missed the interrupt */
+	hw_rfkill = iwl_is_rfkill_set(trans);
+	if (hw_rfkill)
+		set_bit(STATUS_RFKILL, &trans->status);
+	else
+		clear_bit(STATUS_RFKILL, &trans->status);
+
+	iwl_trans_pcie_rf_kill(trans, hw_rfkill);
+	if (hw_rfkill && !run_in_rfkill)
+		ret = -ERFKILL;
+
+out:
+	mutex_unlock(&trans_pcie->mutex);
+	return ret;
+}
+
+static void iwl_trans_pcie_fw_alive(struct iwl_trans *trans, u32 scd_addr)
+{
+	iwl_pcie_reset_ict(trans);
+	iwl_pcie_tx_start(trans, scd_addr);
+}
+
 static void iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
diff --git a/drivers/net/wireless/realtek/rtlwifi/rc.c b/drivers/net/wireless/realtek/rtlwifi/rc.c
index 74c14ce..28f7010 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rc.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rc.c
@@ -138,6 +138,11 @@ static void _rtl_rc_rate_set_series(struct rtl_priv *rtlpriv,
 		    ((wireless_mode == WIRELESS_MODE_N_5G) ||
 		     (wireless_mode == WIRELESS_MODE_N_24G)))
 			rate->flags |= IEEE80211_TX_RC_MCS;
+		if (sta && sta->vht_cap.vht_supported &&
+		    (wireless_mode == WIRELESS_MODE_AC_5G ||
+		     wireless_mode == WIRELESS_MODE_AC_24G ||
+		     wireless_mode == WIRELESS_MODE_AC_ONLY))
+			rate->flags |= IEEE80211_TX_RC_VHT_MCS;
 	}
 }
 
diff --git a/drivers/net/wireless/ti/wlcore/io.c b/drivers/net/wireless/ti/wlcore/io.c
index 9ac118e..564ca75 100644
--- a/drivers/net/wireless/ti/wlcore/io.c
+++ b/drivers/net/wireless/ti/wlcore/io.c
@@ -175,14 +175,14 @@ int wlcore_set_partition(struct wl1271 *wl,
 	if (ret < 0)
 		goto out;
 
+	/* We don't need the size of the last partition, as it is
+	 * automatically calculated based on the total memory size and
+	 * the sizes of the previous partitions.
+	 */
 	ret = wlcore_raw_write32(wl, HW_PART3_START_ADDR, p->mem3.start);
 	if (ret < 0)
 		goto out;
 
-	ret = wlcore_raw_write32(wl, HW_PART3_SIZE_ADDR, p->mem3.size);
-	if (ret < 0)
-		goto out;
-
 out:
 	return ret;
 }
diff --git a/drivers/net/wireless/ti/wlcore/io.h b/drivers/net/wireless/ti/wlcore/io.h
index 6c257b5..10cf374 100644
--- a/drivers/net/wireless/ti/wlcore/io.h
+++ b/drivers/net/wireless/ti/wlcore/io.h
@@ -36,8 +36,8 @@
 #define HW_PART1_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 12)
 #define HW_PART2_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR + 16)
 #define HW_PART2_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 20)
-#define HW_PART3_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR + 24)
-#define HW_PART3_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 28)
+#define HW_PART3_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 24)
+
 #define HW_ACCESS_REGISTER_SIZE         4
 
 #define HW_ACCESS_PRAM_MAX_RANGE	0x3c000
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index 7e2c43f..5d28e94 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -382,18 +382,18 @@ static const struct nd_cmd_desc __nd_cmd_bus_descs[] = {
 	[ND_CMD_ARS_CAP] = {
 		.in_num = 2,
 		.in_sizes = { 8, 8, },
-		.out_num = 2,
-		.out_sizes = { 4, 4, },
+		.out_num = 4,
+		.out_sizes = { 4, 4, 4, 4, },
 	},
 	[ND_CMD_ARS_START] = {
-		.in_num = 4,
-		.in_sizes = { 8, 8, 2, 6, },
-		.out_num = 1,
-		.out_sizes = { 4, },
+		.in_num = 5,
+		.in_sizes = { 8, 8, 2, 1, 5, },
+		.out_num = 2,
+		.out_sizes = { 4, 4, },
 	},
 	[ND_CMD_ARS_STATUS] = {
-		.out_num = 2,
-		.out_sizes = { 4, UINT_MAX, },
+		.out_num = 3,
+		.out_sizes = { 4, 4, UINT_MAX, },
 	},
 };
 
@@ -442,8 +442,8 @@ u32 nd_cmd_out_size(struct nvdimm *nvdimm, int cmd,
 		return in_field[1];
 	else if (nvdimm && cmd == ND_CMD_VENDOR && idx == 2)
 		return out_field[1];
-	else if (!nvdimm && cmd == ND_CMD_ARS_STATUS && idx == 1)
-		return ND_CMD_ARS_STATUS_MAX;
+	else if (!nvdimm && cmd == ND_CMD_ARS_STATUS && idx == 2)
+		return out_field[1] - 8;
 
 	return UINT_MAX;
 }
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 7edf316..8d0b546 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -41,7 +41,7 @@ struct pmem_device {
 	phys_addr_t		phys_addr;
 	/* when non-zero this device is hosting a 'pfn' instance */
 	phys_addr_t		data_offset;
-	unsigned long		pfn_flags;
+	u64			pfn_flags;
 	void __pmem		*virt_addr;
 	size_t			size;
 	struct badblocks	bb;
diff --git a/drivers/nvme/host/Kconfig b/drivers/nvme/host/Kconfig
index 5d62373..b586d84 100644
--- a/drivers/nvme/host/Kconfig
+++ b/drivers/nvme/host/Kconfig
@@ -17,5 +17,6 @@ config BLK_DEV_NVME_SCSI
 	  and block devices nodes, as well a a translation for a small
 	  number of selected SCSI commands to NVMe commands to the NVMe
 	  driver.  If you don't know what this means you probably want
-	  to say N here, and if you know what it means you probably
-	  want to say N as well.
+	  to say N here, unless you run a distro that abuses the SCSI
+	  emulation to provide stable device names for mount by id, like
+	  some OpenSuSE and SLES versions.
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index c5bf001..3cd921e 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1121,7 +1121,6 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
 	ns->queue = blk_mq_init_queue(ctrl->tagset);
 	if (IS_ERR(ns->queue))
 		goto out_free_ns;
-	queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, ns->queue);
 	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, ns->queue);
 	ns->queue->queuedata = ns;
 	ns->ctrl = ctrl;
diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
index 5cd3725..6bb15e4 100644
--- a/drivers/nvme/host/lightnvm.c
+++ b/drivers/nvme/host/lightnvm.c
@@ -146,9 +146,10 @@ struct nvme_nvm_command {
 	};
 };
 
+#define NVME_NVM_LP_MLC_PAIRS 886
 struct nvme_nvm_lp_mlc {
 	__u16			num_pairs;
-	__u8			pairs[886];
+	__u8			pairs[NVME_NVM_LP_MLC_PAIRS];
 };
 
 struct nvme_nvm_lp_tbl {
@@ -282,9 +283,14 @@ static int init_grps(struct nvm_id *nvm_id, struct nvme_nvm_id *nvme_nvm_id)
 			memcpy(dst->lptbl.id, src->lptbl.id, 8);
 			dst->lptbl.mlc.num_pairs =
 					le16_to_cpu(src->lptbl.mlc.num_pairs);
-			/* 4 bits per pair */
+
+			if (dst->lptbl.mlc.num_pairs > NVME_NVM_LP_MLC_PAIRS) {
+				pr_err("nvm: number of MLC pairs not supported\n");
+				return -EINVAL;
+			}
+
 			memcpy(dst->lptbl.mlc.pairs, src->lptbl.mlc.pairs,
-						dst->lptbl.mlc.num_pairs >> 1);
+						dst->lptbl.mlc.num_pairs);
 		}
 	}
 
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 4fb5bb7..9664d07 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -139,9 +139,9 @@ static inline bool nvme_io_incapable(struct nvme_ctrl *ctrl)
 	u32 val = 0;
 
 	if (ctrl->ops->io_incapable(ctrl))
-		return false;
+		return true;
 	if (ctrl->ops->reg_read32(ctrl, NVME_REG_CSTS, &val))
-		return false;
+		return true;
 	return val & NVME_CSTS_CFS;
 }
 
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 72ef832..a128672 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -678,6 +678,11 @@ static int nvme_queue_rq(struct blk_mq_hw_ctx *hctx,
 	blk_mq_start_request(req);
 
 	spin_lock_irq(&nvmeq->q_lock);
+	if (unlikely(nvmeq->cq_vector < 0)) {
+		ret = BLK_MQ_RQ_QUEUE_BUSY;
+		spin_unlock_irq(&nvmeq->q_lock);
+		goto out;
+	}
 	__nvme_submit_cmd(nvmeq, &cmnd);
 	nvme_process_cq(nvmeq);
 	spin_unlock_irq(&nvmeq->q_lock);
@@ -999,7 +1004,7 @@ static void nvme_cancel_queue_ios(struct request *req, void *data, bool reserved
 	if (!blk_mq_request_started(req))
 		return;
 
-	dev_warn(nvmeq->q_dmadev,
+	dev_dbg_ratelimited(nvmeq->q_dmadev,
 		 "Cancelling I/O %d QID %d\n", req->tag, nvmeq->qid);
 
 	status = NVME_SC_ABORT_REQ;
@@ -2111,16 +2116,12 @@ static void nvme_remove(struct pci_dev *pdev)
 {
 	struct nvme_dev *dev = pci_get_drvdata(pdev);
 
-	spin_lock(&dev_list_lock);
-	list_del_init(&dev->node);
-	spin_unlock(&dev_list_lock);
-
 	pci_set_drvdata(pdev, NULL);
-	flush_work(&dev->reset_work);
 	flush_work(&dev->scan_work);
 	nvme_remove_namespaces(&dev->ctrl);
 	nvme_uninit_ctrl(&dev->ctrl);
 	nvme_dev_disable(dev, true);
+	flush_work(&dev->reset_work);
 	nvme_dev_remove_admin(dev);
 	nvme_free_queues(dev, 0);
 	nvme_release_cmb(dev);
diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig
index bc4ea58..5bd18cc 100644
--- a/drivers/nvmem/Kconfig
+++ b/drivers/nvmem/Kconfig
@@ -25,6 +25,15 @@ config NVMEM_IMX_OCOTP
 	  This driver can also be built as a module. If so, the module
 	  will be called nvmem-imx-ocotp.
 
+config NVMEM_LPC18XX_EEPROM
+	tristate "NXP LPC18XX EEPROM Memory Support"
+	depends on ARCH_LPC18XX || COMPILE_TEST
+	help
+	  Say Y here to include support for NXP LPC18xx EEPROM memory found in
+	  NXP LPC185x/3x and LPC435x/3x/2x/1x devices.
+	  To compile this driver as a module, choose M here: the module
+	  will be called nvmem_lpc18xx_eeprom.
+
 config NVMEM_MXS_OCOTP
 	tristate "Freescale MXS On-Chip OTP Memory Support"
 	depends on ARCH_MXS || COMPILE_TEST
@@ -36,6 +45,17 @@ config NVMEM_MXS_OCOTP
 	  This driver can also be built as a module. If so, the module
 	  will be called nvmem-mxs-ocotp.
 
+config MTK_EFUSE
+	tristate "Mediatek SoCs EFUSE support"
+	depends on ARCH_MEDIATEK || COMPILE_TEST
+	select REGMAP_MMIO
+	help
+	  This is a driver to access hardware related data like sensor
+	  calibration, HDMI impedance etc.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called efuse-mtk.
+
 config QCOM_QFPROM
 	tristate "QCOM QFPROM Support"
 	depends on ARCH_QCOM || COMPILE_TEST
diff --git a/drivers/nvmem/Makefile b/drivers/nvmem/Makefile
index 95dde3f..45ab1ae 100644
--- a/drivers/nvmem/Makefile
+++ b/drivers/nvmem/Makefile
@@ -8,8 +8,12 @@ nvmem_core-y			:= core.o
 # Devices
 obj-$(CONFIG_NVMEM_IMX_OCOTP)	+= nvmem-imx-ocotp.o
 nvmem-imx-ocotp-y		:= imx-ocotp.o
+obj-$(CONFIG_NVMEM_LPC18XX_EEPROM)	+= nvmem_lpc18xx_eeprom.o
+nvmem_lpc18xx_eeprom-y	:= lpc18xx_eeprom.o
 obj-$(CONFIG_NVMEM_MXS_OCOTP)	+= nvmem-mxs-ocotp.o
 nvmem-mxs-ocotp-y		:= mxs-ocotp.o
+obj-$(CONFIG_MTK_EFUSE)		+= nvmem_mtk-efuse.o
+nvmem_mtk-efuse-y		:= mtk-efuse.o
 obj-$(CONFIG_QCOM_QFPROM)	+= nvmem_qfprom.o
 nvmem_qfprom-y			:= qfprom.o
 obj-$(CONFIG_ROCKCHIP_EFUSE)	+= nvmem_rockchip_efuse.o
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 6fd4e5a..de14fae 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -70,6 +70,9 @@ static ssize_t bin_attr_nvmem_read(struct file *filp, struct kobject *kobj,
 	if (pos >= nvmem->size)
 		return 0;
 
+	if (count < nvmem->word_size)
+		return -EINVAL;
+
 	if (pos + count > nvmem->size)
 		count = nvmem->size - pos;
 
@@ -95,6 +98,9 @@ static ssize_t bin_attr_nvmem_write(struct file *filp, struct kobject *kobj,
 	if (pos >= nvmem->size)
 		return 0;
 
+	if (count < nvmem->word_size)
+		return -EINVAL;
+
 	if (pos + count > nvmem->size)
 		count = nvmem->size - pos;
 
@@ -288,9 +294,11 @@ static int nvmem_add_cells(struct nvmem_device *nvmem,
 
 	return 0;
 err:
-	while (--i)
+	while (i--)
 		nvmem_cell_drop(cells[i]);
 
+	kfree(cells);
+
 	return rval;
 }
 
diff --git a/drivers/nvmem/lpc18xx_eeprom.c b/drivers/nvmem/lpc18xx_eeprom.c
new file mode 100644
index 0000000..878fce7
--- /dev/null
+++ b/drivers/nvmem/lpc18xx_eeprom.c
@@ -0,0 +1,330 @@
+/*
+ * NXP LPC18xx/LPC43xx EEPROM memory NVMEM driver
+ *
+ * Copyright (c) 2015 Ariel D'Alessandro <ariel@vanguardiasur.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/nvmem-provider.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+
+/* Registers */
+#define LPC18XX_EEPROM_AUTOPROG			0x00c
+#define LPC18XX_EEPROM_AUTOPROG_WORD		0x1
+
+#define LPC18XX_EEPROM_CLKDIV			0x014
+
+#define LPC18XX_EEPROM_PWRDWN			0x018
+#define LPC18XX_EEPROM_PWRDWN_NO		0x0
+#define LPC18XX_EEPROM_PWRDWN_YES		0x1
+
+#define LPC18XX_EEPROM_INTSTAT			0xfe0
+#define LPC18XX_EEPROM_INTSTAT_END_OF_PROG	BIT(2)
+
+#define LPC18XX_EEPROM_INTSTATCLR		0xfe8
+#define LPC18XX_EEPROM_INTSTATCLR_PROG_CLR_ST	BIT(2)
+
+/* Fixed page size (bytes) */
+#define LPC18XX_EEPROM_PAGE_SIZE		0x80
+
+/* EEPROM device requires a ~1500 kHz clock (min 800 kHz, max 1600 kHz) */
+#define LPC18XX_EEPROM_CLOCK_HZ			1500000
+
+/* EEPROM requires 3 ms of erase/program time between each writing */
+#define LPC18XX_EEPROM_PROGRAM_TIME		3
+
+struct lpc18xx_eeprom_dev {
+	struct clk *clk;
+	void __iomem *reg_base;
+	void __iomem *mem_base;
+	struct nvmem_device *nvmem;
+	unsigned reg_bytes;
+	unsigned val_bytes;
+};
+
+static struct regmap_config lpc18xx_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+};
+
+static inline void lpc18xx_eeprom_writel(struct lpc18xx_eeprom_dev *eeprom,
+					 u32 reg, u32 val)
+{
+	writel(val, eeprom->reg_base + reg);
+}
+
+static inline u32 lpc18xx_eeprom_readl(struct lpc18xx_eeprom_dev *eeprom,
+				       u32 reg)
+{
+	return readl(eeprom->reg_base + reg);
+}
+
+static int lpc18xx_eeprom_busywait_until_prog(struct lpc18xx_eeprom_dev *eeprom)
+{
+	unsigned long end;
+	u32 val;
+
+	/* Wait until EEPROM program operation has finished */
+	end = jiffies + msecs_to_jiffies(LPC18XX_EEPROM_PROGRAM_TIME * 10);
+
+	while (time_is_after_jiffies(end)) {
+		val = lpc18xx_eeprom_readl(eeprom, LPC18XX_EEPROM_INTSTAT);
+
+		if (val & LPC18XX_EEPROM_INTSTAT_END_OF_PROG) {
+			lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_INTSTATCLR,
+					LPC18XX_EEPROM_INTSTATCLR_PROG_CLR_ST);
+			return 0;
+		}
+
+		usleep_range(LPC18XX_EEPROM_PROGRAM_TIME * USEC_PER_MSEC,
+			     (LPC18XX_EEPROM_PROGRAM_TIME + 1) * USEC_PER_MSEC);
+	}
+
+	return -ETIMEDOUT;
+}
+
+static int lpc18xx_eeprom_gather_write(void *context, const void *reg,
+				       size_t reg_size, const void *val,
+				       size_t val_size)
+{
+	struct lpc18xx_eeprom_dev *eeprom = context;
+	unsigned int offset = *(u32 *)reg;
+	int ret;
+
+	if (offset % lpc18xx_regmap_config.reg_stride)
+		return -EINVAL;
+
+	lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN,
+			      LPC18XX_EEPROM_PWRDWN_NO);
+
+	/* Wait 100 us while the EEPROM wakes up */
+	usleep_range(100, 200);
+
+	while (val_size) {
+		writel(*(u32 *)val, eeprom->mem_base + offset);
+		ret = lpc18xx_eeprom_busywait_until_prog(eeprom);
+		if (ret < 0)
+			return ret;
+
+		val_size -= eeprom->val_bytes;
+		val += eeprom->val_bytes;
+		offset += eeprom->val_bytes;
+	}
+
+	lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN,
+			      LPC18XX_EEPROM_PWRDWN_YES);
+
+	return 0;
+}
+
+static int lpc18xx_eeprom_write(void *context, const void *data, size_t count)
+{
+	struct lpc18xx_eeprom_dev *eeprom = context;
+	unsigned int offset = eeprom->reg_bytes;
+
+	if (count <= offset)
+		return -EINVAL;
+
+	return lpc18xx_eeprom_gather_write(context, data, eeprom->reg_bytes,
+					   data + offset, count - offset);
+}
+
+static int lpc18xx_eeprom_read(void *context, const void *reg, size_t reg_size,
+			       void *val, size_t val_size)
+{
+	struct lpc18xx_eeprom_dev *eeprom = context;
+	unsigned int offset = *(u32 *)reg;
+
+	lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN,
+			      LPC18XX_EEPROM_PWRDWN_NO);
+
+	/* Wait 100 us while the EEPROM wakes up */
+	usleep_range(100, 200);
+
+	while (val_size) {
+		*(u32 *)val = readl(eeprom->mem_base + offset);
+		val_size -= eeprom->val_bytes;
+		val += eeprom->val_bytes;
+		offset += eeprom->val_bytes;
+	}
+
+	lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN,
+			      LPC18XX_EEPROM_PWRDWN_YES);
+
+	return 0;
+}
+
+static struct regmap_bus lpc18xx_eeprom_bus = {
+	.write = lpc18xx_eeprom_write,
+	.gather_write = lpc18xx_eeprom_gather_write,
+	.read = lpc18xx_eeprom_read,
+	.reg_format_endian_default = REGMAP_ENDIAN_NATIVE,
+	.val_format_endian_default = REGMAP_ENDIAN_NATIVE,
+};
+
+static bool lpc18xx_eeprom_writeable_reg(struct device *dev, unsigned int reg)
+{
+	/*
+	 * The last page contains the EEPROM initialization data and is not
+	 * writable.
+	 */
+	return reg <= lpc18xx_regmap_config.max_register -
+						LPC18XX_EEPROM_PAGE_SIZE;
+}
+
+static bool lpc18xx_eeprom_readable_reg(struct device *dev, unsigned int reg)
+{
+	return reg <= lpc18xx_regmap_config.max_register;
+}
+
+static struct nvmem_config lpc18xx_nvmem_config = {
+	.name = "lpc18xx-eeprom",
+	.owner = THIS_MODULE,
+};
+
+static int lpc18xx_eeprom_probe(struct platform_device *pdev)
+{
+	struct lpc18xx_eeprom_dev *eeprom;
+	struct device *dev = &pdev->dev;
+	struct reset_control *rst;
+	unsigned long clk_rate;
+	struct regmap *regmap;
+	struct resource *res;
+	int ret;
+
+	eeprom = devm_kzalloc(dev, sizeof(*eeprom), GFP_KERNEL);
+	if (!eeprom)
+		return -ENOMEM;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "reg");
+	eeprom->reg_base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(eeprom->reg_base))
+		return PTR_ERR(eeprom->reg_base);
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mem");
+	eeprom->mem_base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(eeprom->mem_base))
+		return PTR_ERR(eeprom->mem_base);
+
+	eeprom->clk = devm_clk_get(&pdev->dev, "eeprom");
+	if (IS_ERR(eeprom->clk)) {
+		dev_err(&pdev->dev, "failed to get eeprom clock\n");
+		return PTR_ERR(eeprom->clk);
+	}
+
+	ret = clk_prepare_enable(eeprom->clk);
+	if (ret < 0) {
+		dev_err(dev, "failed to prepare/enable eeprom clk: %d\n", ret);
+		return ret;
+	}
+
+	rst = devm_reset_control_get(dev, NULL);
+	if (IS_ERR(rst)) {
+		dev_err(dev, "failed to get reset: %ld\n", PTR_ERR(rst));
+		ret = PTR_ERR(rst);
+		goto err_clk;
+	}
+
+	ret = reset_control_assert(rst);
+	if (ret < 0) {
+		dev_err(dev, "failed to assert reset: %d\n", ret);
+		goto err_clk;
+	}
+
+	eeprom->val_bytes = lpc18xx_regmap_config.val_bits / BITS_PER_BYTE;
+	eeprom->reg_bytes = lpc18xx_regmap_config.reg_bits / BITS_PER_BYTE;
+
+	/*
+	 * Clock rate is generated by dividing the system bus clock by the
+	 * division factor, contained in the divider register (minus 1 encoded).
+	 */
+	clk_rate = clk_get_rate(eeprom->clk);
+	clk_rate = DIV_ROUND_UP(clk_rate, LPC18XX_EEPROM_CLOCK_HZ) - 1;
+	lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_CLKDIV, clk_rate);
+
+	/*
+	 * Writing a single word to the page will start the erase/program cycle
+	 * automatically
+	 */
+	lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_AUTOPROG,
+			      LPC18XX_EEPROM_AUTOPROG_WORD);
+
+	lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN,
+			      LPC18XX_EEPROM_PWRDWN_YES);
+
+	lpc18xx_regmap_config.max_register = resource_size(res) - 1;
+	lpc18xx_regmap_config.writeable_reg = lpc18xx_eeprom_writeable_reg;
+	lpc18xx_regmap_config.readable_reg = lpc18xx_eeprom_readable_reg;
+
+	regmap = devm_regmap_init(dev, &lpc18xx_eeprom_bus, eeprom,
+				  &lpc18xx_regmap_config);
+	if (IS_ERR(regmap)) {
+		dev_err(dev, "regmap init failed: %ld\n", PTR_ERR(regmap));
+		ret = PTR_ERR(regmap);
+		goto err_clk;
+	}
+
+	lpc18xx_nvmem_config.dev = dev;
+
+	eeprom->nvmem = nvmem_register(&lpc18xx_nvmem_config);
+	if (IS_ERR(eeprom->nvmem)) {
+		ret = PTR_ERR(eeprom->nvmem);
+		goto err_clk;
+	}
+
+	platform_set_drvdata(pdev, eeprom);
+
+	return 0;
+
+err_clk:
+	clk_disable_unprepare(eeprom->clk);
+
+	return ret;
+}
+
+static int lpc18xx_eeprom_remove(struct platform_device *pdev)
+{
+	struct lpc18xx_eeprom_dev *eeprom = platform_get_drvdata(pdev);
+	int ret;
+
+	ret = nvmem_unregister(eeprom->nvmem);
+	if (ret < 0)
+		return ret;
+
+	clk_disable_unprepare(eeprom->clk);
+
+	return 0;
+}
+
+static const struct of_device_id lpc18xx_eeprom_of_match[] = {
+	{ .compatible = "nxp,lpc1857-eeprom" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, lpc18xx_eeprom_of_match);
+
+static struct platform_driver lpc18xx_eeprom_driver = {
+	.probe = lpc18xx_eeprom_probe,
+	.remove = lpc18xx_eeprom_remove,
+	.driver = {
+		.name = "lpc18xx-eeprom",
+		.of_match_table = lpc18xx_eeprom_of_match,
+	},
+};
+
+module_platform_driver(lpc18xx_eeprom_driver);
+
+MODULE_AUTHOR("Ariel D'Alessandro <ariel@vanguardiasur.com.ar>");
+MODULE_DESCRIPTION("NXP LPC18xx EEPROM memory Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/nvmem/mtk-efuse.c b/drivers/nvmem/mtk-efuse.c
new file mode 100644
index 0000000..7b35f5b
--- /dev/null
+++ b/drivers/nvmem/mtk-efuse.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ * Author: Andrew-CT Chen <andrew-ct.chen@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/nvmem-provider.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+static struct regmap_config mtk_regmap_config = {
+	.reg_bits = 32,
+	.val_bits = 32,
+	.reg_stride = 4,
+};
+
+static int mtk_efuse_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	struct nvmem_device *nvmem;
+	struct nvmem_config *econfig;
+	struct regmap *regmap;
+	void __iomem *base;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	econfig = devm_kzalloc(dev, sizeof(*econfig), GFP_KERNEL);
+	if (!econfig)
+		return -ENOMEM;
+
+	mtk_regmap_config.max_register = resource_size(res) - 1;
+
+	regmap = devm_regmap_init_mmio(dev, base, &mtk_regmap_config);
+	if (IS_ERR(regmap)) {
+		dev_err(dev, "regmap init failed\n");
+		return PTR_ERR(regmap);
+	}
+
+	econfig->dev = dev;
+	econfig->owner = THIS_MODULE;
+	nvmem = nvmem_register(econfig);
+	if (IS_ERR(nvmem))
+		return PTR_ERR(nvmem);
+
+	platform_set_drvdata(pdev, nvmem);
+
+	return 0;
+}
+
+static int mtk_efuse_remove(struct platform_device *pdev)
+{
+	struct nvmem_device *nvmem = platform_get_drvdata(pdev);
+
+	return nvmem_unregister(nvmem);
+}
+
+static const struct of_device_id mtk_efuse_of_match[] = {
+	{ .compatible = "mediatek,mt8173-efuse",},
+	{ .compatible = "mediatek,efuse",},
+	{/* sentinel */},
+};
+MODULE_DEVICE_TABLE(of, mtk_efuse_of_match);
+
+static struct platform_driver mtk_efuse_driver = {
+	.probe = mtk_efuse_probe,
+	.remove = mtk_efuse_remove,
+	.driver = {
+		.name = "mediatek,efuse",
+		.of_match_table = mtk_efuse_of_match,
+	},
+};
+module_platform_driver(mtk_efuse_driver);
+MODULE_AUTHOR("Andrew-CT Chen <andrew-ct.chen@mediatek.com>");
+MODULE_DESCRIPTION("Mediatek EFUSE driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/nvmem/qfprom.c b/drivers/nvmem/qfprom.c
index afb67e7..3829e5f 100644
--- a/drivers/nvmem/qfprom.c
+++ b/drivers/nvmem/qfprom.c
@@ -21,6 +21,7 @@ static struct regmap_config qfprom_regmap_config = {
 	.reg_bits = 32,
 	.val_bits = 8,
 	.reg_stride = 1,
+	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static struct nvmem_config econfig = {
diff --git a/drivers/nvmem/rockchip-efuse.c b/drivers/nvmem/rockchip-efuse.c
index f552134..a009795 100644
--- a/drivers/nvmem/rockchip-efuse.c
+++ b/drivers/nvmem/rockchip-efuse.c
@@ -14,16 +14,16 @@
  * more details.
  */
 
-#include <linux/platform_device.h>
-#include <linux/nvmem-provider.h>
-#include <linux/slab.h>
-#include <linux/regmap.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/io.h>
 #include <linux/module.h>
-#include <linux/delay.h>
+#include <linux/nvmem-provider.h>
+#include <linux/slab.h>
 #include <linux/of.h>
-#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
 
 #define EFUSE_A_SHIFT			6
 #define EFUSE_A_MASK			0x3ff
@@ -35,10 +35,10 @@
 #define REG_EFUSE_CTRL			0x0000
 #define REG_EFUSE_DOUT			0x0004
 
-struct rockchip_efuse_context {
+struct rockchip_efuse_chip {
 	struct device *dev;
 	void __iomem *base;
-	struct clk *efuse_clk;
+	struct clk *clk;
 };
 
 static int rockchip_efuse_write(void *context, const void *data, size_t count)
@@ -52,34 +52,32 @@ static int rockchip_efuse_read(void *context,
 			       void *val, size_t val_size)
 {
 	unsigned int offset = *(u32 *)reg;
-	struct rockchip_efuse_context *_context = context;
-	void __iomem *base = _context->base;
-	struct clk *clk = _context->efuse_clk;
+	struct rockchip_efuse_chip *efuse = context;
 	u8 *buf = val;
 	int ret;
 
-	ret = clk_prepare_enable(clk);
+	ret = clk_prepare_enable(efuse->clk);
 	if (ret < 0) {
-		dev_err(_context->dev, "failed to prepare/enable efuse clk\n");
+		dev_err(efuse->dev, "failed to prepare/enable efuse clk\n");
 		return ret;
 	}
 
-	writel(EFUSE_LOAD | EFUSE_PGENB, base + REG_EFUSE_CTRL);
+	writel(EFUSE_LOAD | EFUSE_PGENB, efuse->base + REG_EFUSE_CTRL);
 	udelay(1);
 	while (val_size) {
-		writel(readl(base + REG_EFUSE_CTRL) &
+		writel(readl(efuse->base + REG_EFUSE_CTRL) &
 			     (~(EFUSE_A_MASK << EFUSE_A_SHIFT)),
-			     base + REG_EFUSE_CTRL);
-		writel(readl(base + REG_EFUSE_CTRL) |
+			     efuse->base + REG_EFUSE_CTRL);
+		writel(readl(efuse->base + REG_EFUSE_CTRL) |
 			     ((offset & EFUSE_A_MASK) << EFUSE_A_SHIFT),
-			     base + REG_EFUSE_CTRL);
+			     efuse->base + REG_EFUSE_CTRL);
 		udelay(1);
-		writel(readl(base + REG_EFUSE_CTRL) |
-			     EFUSE_STROBE, base + REG_EFUSE_CTRL);
+		writel(readl(efuse->base + REG_EFUSE_CTRL) |
+			     EFUSE_STROBE, efuse->base + REG_EFUSE_CTRL);
 		udelay(1);
-		*buf++ = readb(base + REG_EFUSE_DOUT);
-		writel(readl(base + REG_EFUSE_CTRL) &
-		     (~EFUSE_STROBE), base + REG_EFUSE_CTRL);
+		*buf++ = readb(efuse->base + REG_EFUSE_DOUT);
+		writel(readl(efuse->base + REG_EFUSE_CTRL) &
+		     (~EFUSE_STROBE), efuse->base + REG_EFUSE_CTRL);
 		udelay(1);
 
 		val_size -= 1;
@@ -87,9 +85,9 @@ static int rockchip_efuse_read(void *context,
 	}
 
 	/* Switch to standby mode */
-	writel(EFUSE_PGENB | EFUSE_CSB, base + REG_EFUSE_CTRL);
+	writel(EFUSE_PGENB | EFUSE_CSB, efuse->base + REG_EFUSE_CTRL);
 
-	clk_disable_unprepare(clk);
+	clk_disable_unprepare(efuse->clk);
 
 	return 0;
 }
@@ -114,48 +112,44 @@ static struct nvmem_config econfig = {
 };
 
 static const struct of_device_id rockchip_efuse_match[] = {
-	{ .compatible = "rockchip,rockchip-efuse",},
+	{ .compatible = "rockchip,rockchip-efuse", },
 	{ /* sentinel */},
 };
 MODULE_DEVICE_TABLE(of, rockchip_efuse_match);
 
 static int rockchip_efuse_probe(struct platform_device *pdev)
 {
-	struct device *dev = &pdev->dev;
 	struct resource *res;
 	struct nvmem_device *nvmem;
 	struct regmap *regmap;
-	void __iomem *base;
-	struct clk *clk;
-	struct rockchip_efuse_context *context;
+	struct rockchip_efuse_chip *efuse;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(dev, res);
-	if (IS_ERR(base))
-		return PTR_ERR(base);
+	efuse = devm_kzalloc(&pdev->dev, sizeof(struct rockchip_efuse_chip),
+			     GFP_KERNEL);
+	if (!efuse)
+		return -ENOMEM;
 
-	context = devm_kzalloc(dev, sizeof(struct rockchip_efuse_context),
-			       GFP_KERNEL);
-	if (IS_ERR(context))
-		return PTR_ERR(context);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	efuse->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(efuse->base))
+		return PTR_ERR(efuse->base);
 
-	clk = devm_clk_get(dev, "pclk_efuse");
-	if (IS_ERR(clk))
-		return PTR_ERR(clk);
+	efuse->clk = devm_clk_get(&pdev->dev, "pclk_efuse");
+	if (IS_ERR(efuse->clk))
+		return PTR_ERR(efuse->clk);
 
-	context->dev = dev;
-	context->base = base;
-	context->efuse_clk = clk;
+	efuse->dev = &pdev->dev;
 
 	rockchip_efuse_regmap_config.max_register = resource_size(res) - 1;
 
-	regmap = devm_regmap_init(dev, &rockchip_efuse_bus,
-				  context, &rockchip_efuse_regmap_config);
+	regmap = devm_regmap_init(efuse->dev, &rockchip_efuse_bus,
+				  efuse, &rockchip_efuse_regmap_config);
 	if (IS_ERR(regmap)) {
-		dev_err(dev, "regmap init failed\n");
+		dev_err(efuse->dev, "regmap init failed\n");
 		return PTR_ERR(regmap);
 	}
-	econfig.dev = dev;
+
+	econfig.dev = efuse->dev;
 	nvmem = nvmem_register(&econfig);
 	if (IS_ERR(nvmem))
 		return PTR_ERR(nvmem);
diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c
index cfa3b85..bc88b40 100644
--- a/drivers/nvmem/sunxi_sid.c
+++ b/drivers/nvmem/sunxi_sid.c
@@ -13,10 +13,8 @@
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
- *
  */
 
-
 #include <linux/device.h>
 #include <linux/io.h>
 #include <linux/module.h>
@@ -27,7 +25,6 @@
 #include <linux/slab.h>
 #include <linux/random.h>
 
-
 static struct nvmem_config econfig = {
 	.name = "sunxi-sid",
 	.read_only = true,
@@ -55,8 +52,8 @@ static u8 sunxi_sid_read_byte(const struct sunxi_sid *sid,
 }
 
 static int sunxi_sid_read(void *context,
-			    const void *reg, size_t reg_size,
-			    void *val, size_t val_size)
+			  const void *reg, size_t reg_size,
+			  void *val, size_t val_size)
 {
 	struct sunxi_sid *sid = context;
 	unsigned int offset = *(u32 *)reg;
@@ -130,7 +127,7 @@ static int sunxi_sid_probe(struct platform_device *pdev)
 	if (IS_ERR(nvmem))
 		return PTR_ERR(nvmem);
 
-	randomness = kzalloc(sizeof(u8) * size, GFP_KERNEL);
+	randomness = kzalloc(sizeof(u8) * (size), GFP_KERNEL);
 	if (!randomness) {
 		ret = -EINVAL;
 		goto err_unreg_nvmem;
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 7ee21ae..e7bfc17 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -635,6 +635,13 @@ static u32 __of_msi_map_rid(struct device *dev, struct device_node **np,
 		msi_base = be32_to_cpup(msi_map + 2);
 		rid_len = be32_to_cpup(msi_map + 3);
 
+		if (rid_base & ~map_mask) {
+			dev_err(parent_dev,
+				"Invalid msi-map translation - msi-map-mask (0x%x) ignores rid-base (0x%x)\n",
+				map_mask, rid_base);
+			return rid_out;
+		}
+
 		msi_controller_node = of_find_node_by_phandle(phandle);
 
 		matched = (masked_rid >= rid_base &&
@@ -654,7 +661,7 @@ static u32 __of_msi_map_rid(struct device *dev, struct device_node **np,
 	if (!matched)
 		return rid_out;
 
-	rid_out = masked_rid + msi_base;
+	rid_out = masked_rid - rid_base + msi_base;
 	dev_dbg(dev,
 		"msi-map at: %s, using mask %08x, rid-base: %08x, msi-base: %08x, length: %08x, rid: %08x -> %08x\n",
 		dev_name(parent_dev), map_mask, rid_base, msi_base,
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 5648317..39c4be4 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -154,6 +154,7 @@ static const struct of_device_id whitelist_phys[] = {
 	{ .compatible = "marvell,88E1111", },
 	{ .compatible = "marvell,88e1116", },
 	{ .compatible = "marvell,88e1118", },
+	{ .compatible = "marvell,88e1145", },
 	{ .compatible = "marvell,88e1149r", },
 	{ .compatible = "marvell,88e1310", },
 	{ .compatible = "marvell,88E1510", },
diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
index 75a6054..d1cdd9c 100644
--- a/drivers/pci/host/Kconfig
+++ b/drivers/pci/host/Kconfig
@@ -14,6 +14,7 @@ config PCI_DRA7XX
 config PCI_MVEBU
 	bool "Marvell EBU PCIe controller"
 	depends on ARCH_MVEBU || ARCH_DOVE
+	depends on ARM
 	depends on OF
 
 config PCIE_DW
diff --git a/drivers/pci/host/pcie-iproc.c b/drivers/pci/host/pcie-iproc.c
index 5816bce..a576aee 100644
--- a/drivers/pci/host/pcie-iproc.c
+++ b/drivers/pci/host/pcie-iproc.c
@@ -64,7 +64,6 @@
 #define OARR_SIZE_CFG                BIT(OARR_SIZE_CFG_SHIFT)
 
 #define MAX_NUM_OB_WINDOWS           2
-#define MAX_NUM_PAXC_PF              4
 
 #define IPROC_PCIE_REG_INVALID 0xffff
 
@@ -170,20 +169,6 @@ static inline void iproc_pcie_ob_write(struct iproc_pcie *pcie,
 	writel(val, pcie->base + offset + (window * 8));
 }
 
-static inline bool iproc_pcie_device_is_valid(struct iproc_pcie *pcie,
-					      unsigned int slot,
-					      unsigned int fn)
-{
-	if (slot > 0)
-		return false;
-
-	/* PAXC can only support limited number of functions */
-	if (pcie->type == IPROC_PCIE_PAXC && fn >= MAX_NUM_PAXC_PF)
-		return false;
-
-	return true;
-}
-
 /**
  * Note access to the configuration registers are protected at the higher layer
  * by 'pci_lock' in drivers/pci/access.c
@@ -199,11 +184,11 @@ static void __iomem *iproc_pcie_map_cfg_bus(struct pci_bus *bus,
 	u32 val;
 	u16 offset;
 
-	if (!iproc_pcie_device_is_valid(pcie, slot, fn))
-		return NULL;
-
 	/* root complex access */
 	if (busno == 0) {
+		if (slot > 0 || fn > 0)
+			return NULL;
+
 		iproc_pcie_write_reg(pcie, IPROC_PCIE_CFG_IND_ADDR,
 				     where & CFG_IND_ADDR_MASK);
 		offset = iproc_pcie_reg_offset(pcie, IPROC_PCIE_CFG_IND_DATA);
@@ -213,6 +198,14 @@ static void __iomem *iproc_pcie_map_cfg_bus(struct pci_bus *bus,
 			return (pcie->base + offset);
 	}
 
+	/*
+	 * PAXC is connected to an internally emulated EP within the SoC.  It
+	 * allows only one device.
+	 */
+	if (pcie->type == IPROC_PCIE_PAXC)
+		if (slot > 0)
+			return NULL;
+
 	/* EP device access */
 	val = (busno << CFG_ADDR_BUS_NUM_SHIFT) |
 		(slot << CFG_ADDR_DEV_NUM_SHIFT) |
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index 0bf82a2..48d21e0 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -262,7 +262,6 @@ static struct aer_rpc *aer_alloc_rpc(struct pcie_device *dev)
 	rpc->rpd = dev;
 	INIT_WORK(&rpc->dpc_handler, aer_isr);
 	mutex_init(&rpc->rpc_mutex);
-	init_waitqueue_head(&rpc->wait_release);
 
 	/* Use PCIe bus function to store rpc into PCIe device */
 	set_service_data(dev, rpc);
@@ -285,8 +284,7 @@ static void aer_remove(struct pcie_device *dev)
 		if (rpc->isr)
 			free_irq(dev->irq, dev);
 
-		wait_event(rpc->wait_release, rpc->prod_idx == rpc->cons_idx);
-
+		flush_work(&rpc->dpc_handler);
 		aer_disable_rootport(rpc);
 		kfree(rpc);
 		set_service_data(dev, NULL);
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h
index 84420b7..945c939 100644
--- a/drivers/pci/pcie/aer/aerdrv.h
+++ b/drivers/pci/pcie/aer/aerdrv.h
@@ -72,7 +72,6 @@ struct aer_rpc {
 					 * recovery on the same
 					 * root port hierarchy
 					 */
-	wait_queue_head_t wait_release;
 };
 
 struct aer_broadcast_data {
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 7123925..521e39c 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -811,8 +811,6 @@ void aer_isr(struct work_struct *work)
 	while (get_e_source(rpc, &e_src))
 		aer_isr_one_error(p_device, &e_src);
 	mutex_unlock(&rpc->rpc_mutex);
-
-	wake_up(&rpc->wait_release);
 }
 
 /**
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index c777b97..5f70fee 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -53,7 +53,7 @@ struct pcifront_device {
 };
 
 struct pcifront_sd {
-	int domain;
+	struct pci_sysdata sd;
 	struct pcifront_device *pdev;
 };
 
@@ -67,7 +67,9 @@ static inline void pcifront_init_sd(struct pcifront_sd *sd,
 				    unsigned int domain, unsigned int bus,
 				    struct pcifront_device *pdev)
 {
-	sd->domain = domain;
+	/* Because we do not expose that information via XenBus. */
+	sd->sd.node = first_online_node;
+	sd->sd.domain = domain;
 	sd->pdev = pdev;
 }
 
@@ -468,8 +470,8 @@ static int pcifront_scan_root(struct pcifront_device *pdev,
 	dev_info(&pdev->xdev->dev, "Creating PCI Frontend Bus %04x:%02x\n",
 		 domain, bus);
 
-	bus_entry = kmalloc(sizeof(*bus_entry), GFP_KERNEL);
-	sd = kmalloc(sizeof(*sd), GFP_KERNEL);
+	bus_entry = kzalloc(sizeof(*bus_entry), GFP_KERNEL);
+	sd = kzalloc(sizeof(*sd), GFP_KERNEL);
 	if (!bus_entry || !sd) {
 		err = -ENOMEM;
 		goto err_out;
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index e7e117d..0124d17 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -224,6 +224,7 @@ config PHY_MT65XX_USB3
 
 config PHY_HI6220_USB
 	tristate "hi6220 USB PHY support"
+	depends on (ARCH_HISI && ARM64) || COMPILE_TEST
 	select GENERIC_PHY
 	select MFD_SYSCON
 	help
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index 8c7f27d..e7e574d 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -275,20 +275,21 @@ EXPORT_SYMBOL_GPL(phy_exit);
 
 int phy_power_on(struct phy *phy)
 {
-	int ret;
+	int ret = 0;
 
 	if (!phy)
-		return 0;
+		goto out;
 
 	if (phy->pwr) {
 		ret = regulator_enable(phy->pwr);
 		if (ret)
-			return ret;
+			goto out;
 	}
 
 	ret = phy_pm_runtime_get_sync(phy);
 	if (ret < 0 && ret != -ENOTSUPP)
-		return ret;
+		goto err_pm_sync;
+
 	ret = 0; /* Override possible ret == -ENOTSUPP */
 
 	mutex_lock(&phy->mutex);
@@ -296,19 +297,20 @@ int phy_power_on(struct phy *phy)
 		ret = phy->ops->power_on(phy);
 		if (ret < 0) {
 			dev_err(&phy->dev, "phy poweron failed --> %d\n", ret);
-			goto out;
+			goto err_pwr_on;
 		}
 	}
 	++phy->power_count;
 	mutex_unlock(&phy->mutex);
 	return 0;
 
-out:
+err_pwr_on:
 	mutex_unlock(&phy->mutex);
 	phy_pm_runtime_put_sync(phy);
+err_pm_sync:
 	if (phy->pwr)
 		regulator_disable(phy->pwr);
-
+out:
 	return ret;
 }
 EXPORT_SYMBOL_GPL(phy_power_on);
diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
index 4a3fc6e..840f3ea 100644
--- a/drivers/phy/phy-twl4030-usb.c
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -715,6 +715,7 @@ static int twl4030_usb_probe(struct platform_device *pdev)
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_set_autosuspend_delay(&pdev->dev, 2000);
 	pm_runtime_enable(&pdev->dev);
+	pm_runtime_get_sync(&pdev->dev);
 
 	/* Our job is to use irqs and status from the power module
 	 * to keep the transceiver disabled when nothing's connected.
@@ -750,6 +751,7 @@ static int twl4030_usb_remove(struct platform_device *pdev)
 	struct twl4030_usb *twl = platform_get_drvdata(pdev);
 	int val;
 
+	usb_remove_phy(&twl->phy);
 	pm_runtime_get_sync(twl->dev);
 	cancel_delayed_work(&twl->id_workaround_work);
 	device_remove_file(twl->dev, &dev_attr_vbus);
@@ -757,6 +759,13 @@ static int twl4030_usb_remove(struct platform_device *pdev)
 	/* set transceiver mode to power on defaults */
 	twl4030_usb_set_mode(twl, -1);
 
+	/* idle ulpi before powering off */
+	if (cable_present(twl->linkstat))
+		pm_runtime_put_noidle(twl->dev);
+	pm_runtime_mark_last_busy(twl->dev);
+	pm_runtime_put_sync_suspend(twl->dev);
+	pm_runtime_disable(twl->dev);
+
 	/* autogate 60MHz ULPI clock,
 	 * clear dpll clock request for i2c access,
 	 * disable 32KHz
@@ -771,11 +780,6 @@ static int twl4030_usb_remove(struct platform_device *pdev)
 	/* disable complete OTG block */
 	twl4030_usb_clear_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB);
 
-	if (cable_present(twl->linkstat))
-		pm_runtime_put_noidle(twl->dev);
-	pm_runtime_mark_last_busy(twl->dev);
-	pm_runtime_put(twl->dev);
-
 	return 0;
 }
 
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 16d48a4..e96e86d 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -347,6 +347,7 @@ static int mtk_pconf_parse_conf(struct pinctrl_dev *pctldev,
 		ret = mtk_pconf_set_pull_select(pctl, pin, true, false, arg);
 		break;
 	case PIN_CONFIG_INPUT_ENABLE:
+		mtk_pmx_gpio_set_direction(pctldev, NULL, pin, true);
 		ret = mtk_pconf_set_ies_smt(pctl, pin, arg, param);
 		break;
 	case PIN_CONFIG_OUTPUT:
@@ -354,6 +355,7 @@ static int mtk_pconf_parse_conf(struct pinctrl_dev *pctldev,
 		ret = mtk_pmx_gpio_set_direction(pctldev, NULL, pin, false);
 		break;
 	case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+		mtk_pmx_gpio_set_direction(pctldev, NULL, pin, true);
 		ret = mtk_pconf_set_ies_smt(pctl, pin, arg, param);
 		break;
 	case PIN_CONFIG_DRIVE_STRENGTH:
diff --git a/drivers/pinctrl/mvebu/pinctrl-mvebu.c b/drivers/pinctrl/mvebu/pinctrl-mvebu.c
index e4d4738..3ef798f 100644
--- a/drivers/pinctrl/mvebu/pinctrl-mvebu.c
+++ b/drivers/pinctrl/mvebu/pinctrl-mvebu.c
@@ -666,16 +666,19 @@ int mvebu_pinctrl_probe(struct platform_device *pdev)
 		struct mvebu_mpp_ctrl_setting *set = &mode->settings[0];
 		struct mvebu_pinctrl_group *grp;
 		unsigned num_settings;
+		unsigned supp_settings;
 
-		for (num_settings = 0; ; set++) {
+		for (num_settings = 0, supp_settings = 0; ; set++) {
 			if (!set->name)
 				break;
 
+			num_settings++;
+
 			/* skip unsupported settings for this variant */
 			if (pctl->variant && !(pctl->variant & set->variant))
 				continue;
 
-			num_settings++;
+			supp_settings++;
 
 			/* find gpio/gpo/gpi settings */
 			if (strcmp(set->name, "gpio") == 0)
@@ -688,7 +691,7 @@ int mvebu_pinctrl_probe(struct platform_device *pdev)
 		}
 
 		/* skip modes with no settings for this variant */
-		if (!num_settings)
+		if (!supp_settings)
 			continue;
 
 		grp = mvebu_pinctrl_find_group_by_pid(pctl, mode->pid);
diff --git a/drivers/pinctrl/nomadik/pinctrl-abx500.c b/drivers/pinctrl/nomadik/pinctrl-abx500.c
index 085e601..1f7469c 100644
--- a/drivers/pinctrl/nomadik/pinctrl-abx500.c
+++ b/drivers/pinctrl/nomadik/pinctrl-abx500.c
@@ -191,6 +191,7 @@ static void abx500_gpio_set(struct gpio_chip *chip, unsigned offset, int val)
 		dev_err(pct->dev, "%s write failed (%d)\n", __func__, ret);
 }
 
+#ifdef CONFIG_DEBUG_FS
 static int abx500_get_pull_updown(struct abx500_pinctrl *pct, int offset,
 				  enum abx500_gpio_pull_updown *pull_updown)
 {
@@ -226,6 +227,7 @@ out:
 
 	return ret;
 }
+#endif
 
 static int abx500_set_pull_updown(struct abx500_pinctrl *pct,
 				  int offset, enum abx500_gpio_pull_updown val)
@@ -468,6 +470,7 @@ out:
 	return ret;
 }
 
+#ifdef CONFIG_DEBUG_FS
 static int abx500_get_mode(struct pinctrl_dev *pctldev, struct gpio_chip *chip,
 			  unsigned gpio)
 {
@@ -553,8 +556,6 @@ out:
 	return ret;
 }
 
-#ifdef CONFIG_DEBUG_FS
-
 #include <linux/seq_file.h>
 
 static void abx500_gpio_dbg_show_one(struct seq_file *s,
diff --git a/drivers/pinctrl/pxa/pinctrl-pxa2xx.c b/drivers/pinctrl/pxa/pinctrl-pxa2xx.c
index d90e205..216f227 100644
--- a/drivers/pinctrl/pxa/pinctrl-pxa2xx.c
+++ b/drivers/pinctrl/pxa/pinctrl-pxa2xx.c
@@ -426,6 +426,7 @@ int pxa2xx_pinctrl_init(struct platform_device *pdev,
 
 	return 0;
 }
+EXPORT_SYMBOL(pxa2xx_pinctrl_init);
 
 int pxa2xx_pinctrl_exit(struct platform_device *pdev)
 {
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c
index f67b1e9..5cc97f8 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.c
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.c
@@ -514,25 +514,35 @@ static const struct pinconf_ops samsung_pinconf_ops = {
 	.pin_config_group_set	= samsung_pinconf_group_set,
 };
 
-/* gpiolib gpio_set callback function */
-static void samsung_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
+/*
+ * The samsung_gpio_set_vlaue() should be called with "bank->slock" held
+ * to avoid race condition.
+ */
+static void samsung_gpio_set_value(struct gpio_chip *gc,
+					  unsigned offset, int value)
 {
 	struct samsung_pin_bank *bank = gpiochip_get_data(gc);
 	const struct samsung_pin_bank_type *type = bank->type;
-	unsigned long flags;
 	void __iomem *reg;
 	u32 data;
 
 	reg = bank->drvdata->virt_base + bank->pctl_offset;
 
-	spin_lock_irqsave(&bank->slock, flags);
-
 	data = readl(reg + type->reg_offset[PINCFG_TYPE_DAT]);
 	data &= ~(1 << offset);
 	if (value)
 		data |= 1 << offset;
 	writel(data, reg + type->reg_offset[PINCFG_TYPE_DAT]);
+}
+
+/* gpiolib gpio_set callback function */
+static void samsung_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
+{
+	struct samsung_pin_bank *bank = gpiochip_get_data(gc);
+	unsigned long flags;
 
+	spin_lock_irqsave(&bank->slock, flags);
+	samsung_gpio_set_value(gc, offset, value);
 	spin_unlock_irqrestore(&bank->slock, flags);
 }
 
@@ -553,6 +563,8 @@ static int samsung_gpio_get(struct gpio_chip *gc, unsigned offset)
 }
 
 /*
+ * The samsung_gpio_set_direction() should be called with "bank->slock" held
+ * to avoid race condition.
  * The calls to gpio_direction_output() and gpio_direction_input()
  * leads to this function call.
  */
@@ -564,7 +576,6 @@ static int samsung_gpio_set_direction(struct gpio_chip *gc,
 	struct samsung_pinctrl_drv_data *drvdata;
 	void __iomem *reg;
 	u32 data, mask, shift;
-	unsigned long flags;
 
 	bank = gpiochip_get_data(gc);
 	type = bank->type;
@@ -581,31 +592,42 @@ static int samsung_gpio_set_direction(struct gpio_chip *gc,
 		reg += 4;
 	}
 
-	spin_lock_irqsave(&bank->slock, flags);
-
 	data = readl(reg);
 	data &= ~(mask << shift);
 	if (!input)
 		data |= FUNC_OUTPUT << shift;
 	writel(data, reg);
 
-	spin_unlock_irqrestore(&bank->slock, flags);
-
 	return 0;
 }
 
 /* gpiolib gpio_direction_input callback function. */
 static int samsung_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
 {
-	return samsung_gpio_set_direction(gc, offset, true);
+	struct samsung_pin_bank *bank = gpiochip_get_data(gc);
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&bank->slock, flags);
+	ret = samsung_gpio_set_direction(gc, offset, true);
+	spin_unlock_irqrestore(&bank->slock, flags);
+	return ret;
 }
 
 /* gpiolib gpio_direction_output callback function. */
 static int samsung_gpio_direction_output(struct gpio_chip *gc, unsigned offset,
 							int value)
 {
-	samsung_gpio_set(gc, offset, value);
-	return samsung_gpio_set_direction(gc, offset, false);
+	struct samsung_pin_bank *bank = gpiochip_get_data(gc);
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&bank->slock, flags);
+	samsung_gpio_set_value(gc, offset, value);
+	ret = samsung_gpio_set_direction(gc, offset, false);
+	spin_unlock_irqrestore(&bank->slock, flags);
+
+	return ret;
 }
 
 /*
diff --git a/drivers/pinctrl/sunxi/pinctrl-sun8i-h3.c b/drivers/pinctrl/sunxi/pinctrl-sun8i-h3.c
index 77d4cf0..11760bb 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sun8i-h3.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sun8i-h3.c
@@ -492,6 +492,7 @@ static const struct sunxi_pinctrl_desc sun8i_h3_pinctrl_data = {
 	.pins = sun8i_h3_pins,
 	.npins = ARRAY_SIZE(sun8i_h3_pins),
 	.irq_banks = 2,
+	.irq_read_needs_mux = true
 };
 
 static int sun8i_h3_pinctrl_probe(struct platform_device *pdev)
diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig
index 0adccbf..c11db8b 100644
--- a/drivers/platform/Kconfig
+++ b/drivers/platform/Kconfig
@@ -4,8 +4,7 @@ endif
 if MIPS
 source "drivers/platform/mips/Kconfig"
 endif
-if GOLDFISH
+
 source "drivers/platform/goldfish/Kconfig"
-endif
 
 source "drivers/platform/chrome/Kconfig"
diff --git a/drivers/platform/goldfish/Kconfig b/drivers/platform/goldfish/Kconfig
index 635ef25..50331e3 100644
--- a/drivers/platform/goldfish/Kconfig
+++ b/drivers/platform/goldfish/Kconfig
@@ -1,5 +1,23 @@
+menuconfig GOLDFISH
+	bool "Platform support for Goldfish virtual devices"
+	depends on X86_32 || X86_64 || ARM || ARM64 || MIPS
+	---help---
+	  Say Y here to get to see options for the Goldfish virtual platform.
+	  This option alone does not add any kernel code.
+
+	  Unless you are building for the Android Goldfish emulator say N here.
+
+if GOLDFISH
+
+config GOLDFISH_BUS
+	bool "Goldfish platform bus"
+	---help---
+	  This is a virtual bus to host Goldfish Android Virtual Devices.
+
 config GOLDFISH_PIPE
 	tristate "Goldfish virtual device for QEMU pipes"
 	---help---
 	  This is a virtual device to drive the QEMU pipe interface used by
 	  the Goldfish Android Virtual Device.
+
+endif # GOLDFISH
diff --git a/drivers/platform/goldfish/Makefile b/drivers/platform/goldfish/Makefile
index a002239..d348712 100644
--- a/drivers/platform/goldfish/Makefile
+++ b/drivers/platform/goldfish/Makefile
@@ -1,5 +1,5 @@
 #
 # Makefile for Goldfish platform specific drivers
 #
-obj-$(CONFIG_GOLDFISH)	+=	pdev_bus.o
+obj-$(CONFIG_GOLDFISH_BUS)	+= pdev_bus.o
 obj-$(CONFIG_GOLDFISH_PIPE)	+= goldfish_pipe.o
diff --git a/drivers/platform/goldfish/goldfish_pipe.c b/drivers/platform/goldfish/goldfish_pipe.c
index 9f6734c..9973ceb 100644
--- a/drivers/platform/goldfish/goldfish_pipe.c
+++ b/drivers/platform/goldfish/goldfish_pipe.c
@@ -2,6 +2,7 @@
  * Copyright (C) 2011 Google, Inc.
  * Copyright (C) 2012 Intel, Inc.
  * Copyright (C) 2013 Intel, Inc.
+ * Copyright (C) 2014 Linaro Limited
  *
  * This software is licensed under the terms of the GNU General Public
  * License version 2, as published by the Free Software Foundation, and
@@ -58,6 +59,8 @@
 #include <linux/io.h>
 #include <linux/goldfish.h>
 #include <linux/dma-mapping.h>
+#include <linux/mm.h>
+#include <linux/acpi.h>
 
 /*
  * IMPORTANT: The following constants must match the ones used and defined
@@ -76,6 +79,7 @@
 #define PIPE_REG_PARAMS_ADDR_LOW	0x18  /* read/write: batch data address */
 #define PIPE_REG_PARAMS_ADDR_HIGH	0x1c  /* read/write: batch data address */
 #define PIPE_REG_ACCESS_PARAMS		0x20  /* write: batch access */
+#define PIPE_REG_VERSION		0x24  /* read: device version */
 
 /* list of commands for PIPE_REG_COMMAND */
 #define CMD_OPEN			1  /* open new channel */
@@ -91,12 +95,6 @@
 #define CMD_WRITE_BUFFER	4  /* send a user buffer to the emulator */
 #define CMD_WAKE_ON_WRITE	5  /* tell the emulator to wake us when writing
 				     is possible */
-
-/* The following commands are related to read operations, they must be
- * listed in the same order than the corresponding write ones, since we
- * will use (CMD_READ_BUFFER - CMD_WRITE_BUFFER) as a special offset
- * in goldfish_pipe_read_write() below.
- */
 #define CMD_READ_BUFFER        6  /* receive a user buffer from the emulator */
 #define CMD_WAKE_ON_READ       7  /* tell the emulator to wake us when reading
 				   * is possible */
@@ -131,6 +129,7 @@ struct goldfish_pipe_dev {
 	unsigned char __iomem *base;
 	struct access_params *aps;
 	int irq;
+	u32 version;
 };
 
 static struct goldfish_pipe_dev   pipe_dev[1];
@@ -263,19 +262,14 @@ static int access_with_param(struct goldfish_pipe_dev *dev, const int cmd,
 	return 0;
 }
 
-/* This function is used for both reading from and writing to a given
- * pipe.
- */
 static ssize_t goldfish_pipe_read_write(struct file *filp, char __user *buffer,
-				    size_t bufflen, int is_write)
+				       size_t bufflen, int is_write)
 {
 	unsigned long irq_flags;
 	struct goldfish_pipe *pipe = filp->private_data;
 	struct goldfish_pipe_dev *dev = pipe->dev;
-	const int cmd_offset = is_write ? 0
-					: (CMD_READ_BUFFER - CMD_WRITE_BUFFER);
 	unsigned long address, address_end;
-	int ret = 0;
+	int count = 0, ret = -EINVAL;
 
 	/* If the emulator already closed the pipe, no need to go further */
 	if (test_bit(BIT_CLOSED_ON_HOST, &pipe->flags))
@@ -298,79 +292,107 @@ static ssize_t goldfish_pipe_read_write(struct file *filp, char __user *buffer,
 	address_end = address + bufflen;
 
 	while (address < address_end) {
-		unsigned long  page_end = (address & PAGE_MASK) + PAGE_SIZE;
-		unsigned long  next     = page_end < address_end ? page_end
-								 : address_end;
-		unsigned long  avail    = next - address;
+		unsigned long page_end = (address & PAGE_MASK) + PAGE_SIZE;
+		unsigned long next     = page_end < address_end ? page_end
+								: address_end;
+		unsigned long avail    = next - address;
 		int status, wakeBit;
+		struct page *page;
+
+		/* Either vaddr or paddr depending on the device version */
+		unsigned long xaddr;
+
+		/*
+		 * We grab the pages on a page-by-page basis in case user
+		 * space gives us a potentially huge buffer but the read only
+		 * returns a small amount, then there's no need to pin that
+		 * much memory to the process.
+		 */
+		down_read(&current->mm->mmap_sem);
+		ret = get_user_pages(current, current->mm, address, 1,
+				     !is_write, 0, &page, NULL);
+		up_read(&current->mm->mmap_sem);
+		if (ret < 0)
+			break;
 
-		/* Ensure that the corresponding page is properly mapped */
-		/* FIXME: this isn't safe or sufficient - use get_user_pages */
-		if (is_write) {
-			char c;
-			/* Ensure that the page is mapped and readable */
-			if (__get_user(c, (char __user *)address)) {
-				if (!ret)
-					ret = -EFAULT;
-				break;
-			}
+		if (dev->version) {
+			/* Device version 1 or newer (qemu-android) expects the
+			 * physical address.
+			 */
+			xaddr = page_to_phys(page) | (address & ~PAGE_MASK);
 		} else {
-			/* Ensure that the page is mapped and writable */
-			if (__put_user(0, (char __user *)address)) {
-				if (!ret)
-					ret = -EFAULT;
-				break;
-			}
+			/* Device version 0 (classic emulator) expects the
+			 * virtual address.
+			 */
+			xaddr = address;
 		}
 
 		/* Now, try to transfer the bytes in the current page */
 		spin_lock_irqsave(&dev->lock, irq_flags);
-		if (access_with_param(dev, CMD_WRITE_BUFFER + cmd_offset,
-				address, avail, pipe, &status)) {
+		if (access_with_param(dev,
+				is_write ? CMD_WRITE_BUFFER : CMD_READ_BUFFER,
+				xaddr, avail, pipe, &status)) {
 			gf_write_ptr(pipe, dev->base + PIPE_REG_CHANNEL,
 				     dev->base + PIPE_REG_CHANNEL_HIGH);
 			writel(avail, dev->base + PIPE_REG_SIZE);
-			gf_write_ptr((void *)address,
+			gf_write_ptr((void *)xaddr,
 				     dev->base + PIPE_REG_ADDRESS,
 				     dev->base + PIPE_REG_ADDRESS_HIGH);
-			writel(CMD_WRITE_BUFFER + cmd_offset,
+			writel(is_write ? CMD_WRITE_BUFFER : CMD_READ_BUFFER,
 					dev->base + PIPE_REG_COMMAND);
 			status = readl(dev->base + PIPE_REG_STATUS);
 		}
 		spin_unlock_irqrestore(&dev->lock, irq_flags);
 
+		if (status > 0 && !is_write)
+			set_page_dirty(page);
+		put_page(page);
+
 		if (status > 0) { /* Correct transfer */
-			ret += status;
+			count += status;
 			address += status;
 			continue;
-		}
-
-		if (status == 0)  /* EOF */
+		} else if (status == 0) { /* EOF */
+			ret = 0;
 			break;
-
-		/* An error occured. If we already transfered stuff, just
-		* return with its count. We expect the next call to return
-		* an error code */
-		if (ret > 0)
+		} else if (status < 0 && count > 0) {
+			/*
+			 * An error occurred and we already transferred
+			 * something on one of the previous pages.
+			 * Just return what we already copied and log this
+			 * err.
+			 *
+			 * Note: This seems like an incorrect approach but
+			 * cannot change it until we check if any user space
+			 * ABI relies on this behavior.
+			 */
+			if (status != PIPE_ERROR_AGAIN)
+				pr_info_ratelimited("goldfish_pipe: backend returned error %d on %s\n",
+					status, is_write ? "write" : "read");
+			ret = 0;
 			break;
+		}
 
-		/* If the error is not PIPE_ERROR_AGAIN, or if we are not in
-		* non-blocking mode, just return the error code.
-		*/
+		/*
+		 * If the error is not PIPE_ERROR_AGAIN, or if we are not in
+		 * non-blocking mode, just return the error code.
+		 */
 		if (status != PIPE_ERROR_AGAIN ||
 			(filp->f_flags & O_NONBLOCK) != 0) {
 			ret = goldfish_pipe_error_convert(status);
 			break;
 		}
 
-		/* We will have to wait until more data/space is available.
-		* First, mark the pipe as waiting for a specific wake signal.
-		*/
+		/*
+		 * The backend blocked the read/write, wait until the backend
+		 * tells us it's ready to process more data.
+		 */
 		wakeBit = is_write ? BIT_WAKE_ON_WRITE : BIT_WAKE_ON_READ;
 		set_bit(wakeBit, &pipe->flags);
 
 		/* Tell the emulator we're going to wait for a wake event */
-		goldfish_cmd(pipe, CMD_WAKE_ON_WRITE + cmd_offset);
+		goldfish_cmd(pipe,
+			is_write ? CMD_WAKE_ON_WRITE : CMD_WAKE_ON_READ);
 
 		/* Unlock the pipe, then wait for the wake signal */
 		mutex_unlock(&pipe->lock);
@@ -388,12 +410,13 @@ static ssize_t goldfish_pipe_read_write(struct file *filp, char __user *buffer,
 		/* Try to re-acquire the lock */
 		if (mutex_lock_interruptible(&pipe->lock))
 			return -ERESTARTSYS;
-
-		/* Try the transfer again */
-		continue;
 	}
 	mutex_unlock(&pipe->lock);
-	return ret;
+
+	if (ret < 0)
+		return ret;
+	else
+		return count;
 }
 
 static ssize_t goldfish_pipe_read(struct file *filp, char __user *buffer,
@@ -446,10 +469,11 @@ static irqreturn_t goldfish_pipe_interrupt(int irq, void *dev_id)
 	unsigned long irq_flags;
 	int count = 0;
 
-	/* We're going to read from the emulator a list of (channel,flags)
-	* pairs corresponding to the wake events that occured on each
-	* blocked pipe (i.e. channel).
-	*/
+	/*
+	 * We're going to read from the emulator a list of (channel,flags)
+	 * pairs corresponding to the wake events that occurred on each
+	 * blocked pipe (i.e. channel).
+	 */
 	spin_lock_irqsave(&dev->lock, irq_flags);
 	for (;;) {
 		/* First read the channel, 0 means the end of the list */
@@ -600,6 +624,12 @@ static int goldfish_pipe_probe(struct platform_device *pdev)
 		goto error;
 	}
 	setup_access_params_addr(pdev, dev);
+
+	/* Although the pipe device in the classic Android emulator does not
+	 * recognize the 'version' register, it won't treat this as an error
+	 * either and will simply return 0, which is fine.
+	 */
+	dev->version = readl(dev->base + PIPE_REG_VERSION);
 	return 0;
 
 error:
@@ -615,11 +645,26 @@ static int goldfish_pipe_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct acpi_device_id goldfish_pipe_acpi_match[] = {
+	{ "GFSH0003", 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(acpi, goldfish_pipe_acpi_match);
+
+static const struct of_device_id goldfish_pipe_of_match[] = {
+	{ .compatible = "google,android-pipe", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, goldfish_pipe_of_match);
+
 static struct platform_driver goldfish_pipe = {
 	.probe = goldfish_pipe_probe,
 	.remove = goldfish_pipe_remove,
 	.driver = {
-		.name = "goldfish_pipe"
+		.name = "goldfish_pipe",
+		.owner = THIS_MODULE,
+		.of_match_table = goldfish_pipe_of_match,
+		.acpi_match_table = ACPI_PTR(goldfish_pipe_acpi_match),
 	}
 };
 
diff --git a/drivers/platform/x86/intel-hid.c b/drivers/platform/x86/intel-hid.c
index 20f0ad9..e20f23e 100644
--- a/drivers/platform/x86/intel-hid.c
+++ b/drivers/platform/x86/intel-hid.c
@@ -41,8 +41,7 @@ static const struct key_entry intel_hid_keymap[] = {
 	{ KE_KEY, 4, { KEY_HOME } },
 	{ KE_KEY, 5, { KEY_END } },
 	{ KE_KEY, 6, { KEY_PAGEUP } },
-	{ KE_KEY, 4, { KEY_PAGEDOWN } },
-	{ KE_KEY, 4, { KEY_HOME } },
+	{ KE_KEY, 7, { KEY_PAGEDOWN } },
 	{ KE_KEY, 8, { KEY_RFKILL } },
 	{ KE_KEY, 9, { KEY_POWER } },
 	{ KE_KEY, 11, { KEY_SLEEP } },
diff --git a/drivers/platform/x86/intel_scu_ipcutil.c b/drivers/platform/x86/intel_scu_ipcutil.c
index 02bc5a6..aa45424 100644
--- a/drivers/platform/x86/intel_scu_ipcutil.c
+++ b/drivers/platform/x86/intel_scu_ipcutil.c
@@ -49,7 +49,7 @@ struct scu_ipc_data {
 
 static int scu_reg_access(u32 cmd, struct scu_ipc_data  *data)
 {
-	int count = data->count;
+	unsigned int count = data->count;
 
 	if (count == 0 || count == 3 || count > 4)
 		return -EINVAL;
diff --git a/drivers/power/bq27xxx_battery_i2c.c b/drivers/power/bq27xxx_battery_i2c.c
index 9429e66..8eafc6f 100644
--- a/drivers/power/bq27xxx_battery_i2c.c
+++ b/drivers/power/bq27xxx_battery_i2c.c
@@ -21,6 +21,9 @@
 
 #include <linux/power/bq27xxx_battery.h>
 
+static DEFINE_IDR(battery_id);
+static DEFINE_MUTEX(battery_mutex);
+
 static irqreturn_t bq27xxx_battery_irq_handler_thread(int irq, void *data)
 {
 	struct bq27xxx_device_info *di = data;
@@ -70,19 +73,33 @@ static int bq27xxx_battery_i2c_probe(struct i2c_client *client,
 {
 	struct bq27xxx_device_info *di;
 	int ret;
+	char *name;
+	int num;
+
+	/* Get new ID for the new battery device */
+	mutex_lock(&battery_mutex);
+	num = idr_alloc(&battery_id, client, 0, 0, GFP_KERNEL);
+	mutex_unlock(&battery_mutex);
+	if (num < 0)
+		return num;
+
+	name = devm_kasprintf(&client->dev, GFP_KERNEL, "%s-%d", id->name, num);
+	if (!name)
+		goto err_mem;
 
 	di = devm_kzalloc(&client->dev, sizeof(*di), GFP_KERNEL);
 	if (!di)
-		return -ENOMEM;
+		goto err_mem;
 
+	di->id = num;
 	di->dev = &client->dev;
 	di->chip = id->driver_data;
-	di->name = id->name;
+	di->name = name;
 	di->bus.read = bq27xxx_battery_i2c_read;
 
 	ret = bq27xxx_battery_setup(di);
 	if (ret)
-		return ret;
+		goto err_failed;
 
 	/* Schedule a polling after about 1 min */
 	schedule_delayed_work(&di->work, 60 * HZ);
@@ -103,6 +120,16 @@ static int bq27xxx_battery_i2c_probe(struct i2c_client *client,
 	}
 
 	return 0;
+
+err_mem:
+	ret = -ENOMEM;
+
+err_failed:
+	mutex_lock(&battery_mutex);
+	idr_remove(&battery_id, num);
+	mutex_unlock(&battery_mutex);
+
+	return ret;
 }
 
 static int bq27xxx_battery_i2c_remove(struct i2c_client *client)
@@ -111,6 +138,10 @@ static int bq27xxx_battery_i2c_remove(struct i2c_client *client)
 
 	bq27xxx_battery_teardown(di);
 
+	mutex_lock(&battery_mutex);
+	idr_remove(&battery_id, di->id);
+	mutex_unlock(&battery_mutex);
+
 	return 0;
 }
 
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 41605da..c78db05 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -3035,6 +3035,7 @@ static void dasd_setup_queue(struct dasd_block *block)
 		max = block->base->discipline->max_blocks << block->s2b_shift;
 	}
 	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, block->request_queue);
+	block->request_queue->limits.max_dev_sectors = max;
 	blk_queue_logical_block_size(block->request_queue,
 				     block->bp_block);
 	blk_queue_max_hw_sectors(block->request_queue, max);
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index 184b1db..286782c 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -264,8 +264,10 @@ void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device)
 		spin_unlock_irqrestore(&lcu->lock, flags);
 		cancel_work_sync(&lcu->suc_data.worker);
 		spin_lock_irqsave(&lcu->lock, flags);
-		if (device == lcu->suc_data.device)
+		if (device == lcu->suc_data.device) {
+			dasd_put_device(device);
 			lcu->suc_data.device = NULL;
+		}
 	}
 	was_pending = 0;
 	if (device == lcu->ruac_data.device) {
@@ -273,8 +275,10 @@ void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device)
 		was_pending = 1;
 		cancel_delayed_work_sync(&lcu->ruac_data.dwork);
 		spin_lock_irqsave(&lcu->lock, flags);
-		if (device == lcu->ruac_data.device)
+		if (device == lcu->ruac_data.device) {
+			dasd_put_device(device);
 			lcu->ruac_data.device = NULL;
+		}
 	}
 	private->lcu = NULL;
 	spin_unlock_irqrestore(&lcu->lock, flags);
@@ -549,8 +553,10 @@ static void lcu_update_work(struct work_struct *work)
 	if ((rc && (rc != -EOPNOTSUPP)) || (lcu->flags & NEED_UAC_UPDATE)) {
 		DBF_DEV_EVENT(DBF_WARNING, device, "could not update"
 			    " alias data in lcu (rc = %d), retry later", rc);
-		schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ);
+		if (!schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ))
+			dasd_put_device(device);
 	} else {
+		dasd_put_device(device);
 		lcu->ruac_data.device = NULL;
 		lcu->flags &= ~UPDATE_PENDING;
 	}
@@ -593,8 +599,10 @@ static int _schedule_lcu_update(struct alias_lcu *lcu,
 	 */
 	if (!usedev)
 		return -EINVAL;
+	dasd_get_device(usedev);
 	lcu->ruac_data.device = usedev;
-	schedule_delayed_work(&lcu->ruac_data.dwork, 0);
+	if (!schedule_delayed_work(&lcu->ruac_data.dwork, 0))
+		dasd_put_device(usedev);
 	return 0;
 }
 
@@ -723,7 +731,7 @@ static int reset_summary_unit_check(struct alias_lcu *lcu,
 	ASCEBC((char *) &cqr->magic, 4);
 	ccw = cqr->cpaddr;
 	ccw->cmd_code = DASD_ECKD_CCW_RSCK;
-	ccw->flags = 0 ;
+	ccw->flags = CCW_FLAG_SLI;
 	ccw->count = 16;
 	ccw->cda = (__u32)(addr_t) cqr->data;
 	((char *)cqr->data)[0] = reason;
@@ -930,6 +938,7 @@ static void summary_unit_check_handling_work(struct work_struct *work)
 	/* 3. read new alias configuration */
 	_schedule_lcu_update(lcu, device);
 	lcu->suc_data.device = NULL;
+	dasd_put_device(device);
 	spin_unlock_irqrestore(&lcu->lock, flags);
 }
 
@@ -989,6 +998,8 @@ void dasd_alias_handle_summary_unit_check(struct dasd_device *device,
 	}
 	lcu->suc_data.reason = reason;
 	lcu->suc_data.device = device;
+	dasd_get_device(device);
 	spin_unlock(&lcu->lock);
-	schedule_work(&lcu->suc_data.worker);
+	if (!schedule_work(&lcu->suc_data.worker))
+		dasd_put_device(device);
 };
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index 3613581..93880ed 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -562,7 +562,7 @@ static int mode_select_handle_sense(struct scsi_device *sdev,
 			/*
 			 * Command Lock contention
 			 */
-			err = SCSI_DH_RETRY;
+			err = SCSI_DH_IMM_RETRY;
 		break;
 	default:
 		break;
@@ -612,6 +612,8 @@ retry:
 		err = mode_select_handle_sense(sdev, h->sense);
 		if (err == SCSI_DH_RETRY && retry_cnt--)
 			goto retry;
+		if (err == SCSI_DH_IMM_RETRY)
+			goto retry;
 	}
 	if (err == SCSI_DH_OK) {
 		h->state = RDAC_STATE_ACTIVE;
diff --git a/drivers/scsi/hisi_sas/Kconfig b/drivers/scsi/hisi_sas/Kconfig
index b676618..d1dd161 100644
--- a/drivers/scsi/hisi_sas/Kconfig
+++ b/drivers/scsi/hisi_sas/Kconfig
@@ -1,6 +1,6 @@
 config SCSI_HISI_SAS
 	tristate "HiSilicon SAS"
-	depends on HAS_DMA
+	depends on HAS_DMA && HAS_IOMEM
 	depends on ARM64 || COMPILE_TEST
 	select SCSI_SAS_LIBSAS
 	select BLK_DEV_INTEGRITY
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index 057fdeb..eea24d7 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -1289,13 +1289,10 @@ static int slot_complete_v1_hw(struct hisi_hba *hisi_hba,
 		goto out;
 	}
 
-	if (cmplt_hdr_data & CMPLT_HDR_ERR_RCRD_XFRD_MSK) {
-		if (!(cmplt_hdr_data & CMPLT_HDR_CMD_CMPLT_MSK) ||
-		    !(cmplt_hdr_data & CMPLT_HDR_RSPNS_XFRD_MSK))
-			ts->stat = SAS_DATA_OVERRUN;
-		else
-			slot_err_v1_hw(hisi_hba, task, slot);
+	if (cmplt_hdr_data & CMPLT_HDR_ERR_RCRD_XFRD_MSK &&
+		!(cmplt_hdr_data & CMPLT_HDR_RSPNS_XFRD_MSK)) {
 
+		slot_err_v1_hw(hisi_hba, task, slot);
 		goto out;
 	}
 
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 52a8765..692a757 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -2204,7 +2204,7 @@ qla2x00_init_rings(scsi_qla_host_t *vha)
 	/* Clear outstanding commands array. */
 	for (que = 0; que < ha->max_req_queues; que++) {
 		req = ha->req_q_map[que];
-		if (!req)
+		if (!req || !test_bit(que, ha->req_qid_map))
 			continue;
 		req->out_ptr = (void *)(req->ring + req->length);
 		*req->out_ptr = 0;
@@ -2221,7 +2221,7 @@ qla2x00_init_rings(scsi_qla_host_t *vha)
 
 	for (que = 0; que < ha->max_rsp_queues; que++) {
 		rsp = ha->rsp_q_map[que];
-		if (!rsp)
+		if (!rsp || !test_bit(que, ha->rsp_qid_map))
 			continue;
 		rsp->in_ptr = (void *)(rsp->ring + rsp->length);
 		*rsp->in_ptr = 0;
@@ -4981,7 +4981,7 @@ qla25xx_init_queues(struct qla_hw_data *ha)
 
 	for (i = 1; i < ha->max_rsp_queues; i++) {
 		rsp = ha->rsp_q_map[i];
-		if (rsp) {
+		if (rsp && test_bit(i, ha->rsp_qid_map)) {
 			rsp->options &= ~BIT_0;
 			ret = qla25xx_init_rsp_que(base_vha, rsp);
 			if (ret != QLA_SUCCESS)
@@ -4996,8 +4996,8 @@ qla25xx_init_queues(struct qla_hw_data *ha)
 	}
 	for (i = 1; i < ha->max_req_queues; i++) {
 		req = ha->req_q_map[i];
-		if (req) {
-		/* Clear outstanding commands array. */
+		if (req && test_bit(i, ha->req_qid_map)) {
+			/* Clear outstanding commands array. */
 			req->options &= ~BIT_0;
 			ret = qla25xx_init_req_que(base_vha, req);
 			if (ret != QLA_SUCCESS)
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index d4d65eb..4af9547 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -3063,9 +3063,9 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
 		    "MSI-X: Failed to enable support "
 		    "-- %d/%d\n Retry with %d vectors.\n",
 		    ha->msix_count, ret, ret);
+		ha->msix_count = ret;
+		ha->max_rsp_queues = ha->msix_count - 1;
 	}
-	ha->msix_count = ret;
-	ha->max_rsp_queues = ha->msix_count - 1;
 	ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
 				ha->msix_count, GFP_KERNEL);
 	if (!ha->msix_entries) {
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index c5dd594..cf7ba52 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -600,7 +600,7 @@ qla25xx_delete_queues(struct scsi_qla_host *vha)
 	/* Delete request queues */
 	for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
 		req = ha->req_q_map[cnt];
-		if (req) {
+		if (req && test_bit(cnt, ha->req_qid_map)) {
 			ret = qla25xx_delete_req_que(vha, req);
 			if (ret != QLA_SUCCESS) {
 				ql_log(ql_log_warn, vha, 0x00ea,
@@ -614,7 +614,7 @@ qla25xx_delete_queues(struct scsi_qla_host *vha)
 	/* Delete response queues */
 	for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
 		rsp = ha->rsp_q_map[cnt];
-		if (rsp) {
+		if (rsp && test_bit(cnt, ha->rsp_qid_map)) {
 			ret = qla25xx_delete_rsp_que(vha, rsp);
 			if (ret != QLA_SUCCESS) {
 				ql_log(ql_log_warn, vha, 0x00eb,
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index f1788db..f6c7ce3 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -409,6 +409,9 @@ static void qla2x00_free_queues(struct qla_hw_data *ha)
 	int cnt;
 
 	for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
+		if (!test_bit(cnt, ha->req_qid_map))
+			continue;
+
 		req = ha->req_q_map[cnt];
 		qla2x00_free_req_que(ha, req);
 	}
@@ -416,6 +419,9 @@ static void qla2x00_free_queues(struct qla_hw_data *ha)
 	ha->req_q_map = NULL;
 
 	for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
+		if (!test_bit(cnt, ha->rsp_qid_map))
+			continue;
+
 		rsp = ha->rsp_q_map[cnt];
 		qla2x00_free_rsp_que(ha, rsp);
 	}
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 8075a4c..ee967be 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -105,7 +105,7 @@ static void qlt_response_pkt(struct scsi_qla_host *ha, response_t *pkt);
 static int qlt_issue_task_mgmt(struct qla_tgt_sess *sess, uint32_t lun,
 	int fn, void *iocb, int flags);
 static void qlt_send_term_exchange(struct scsi_qla_host *ha, struct qla_tgt_cmd
-	*cmd, struct atio_from_isp *atio, int ha_locked);
+	*cmd, struct atio_from_isp *atio, int ha_locked, int ul_abort);
 static void qlt_reject_free_srr_imm(struct scsi_qla_host *ha,
 	struct qla_tgt_srr_imm *imm, int ha_lock);
 static void qlt_abort_cmd_on_host_reset(struct scsi_qla_host *vha,
@@ -1756,7 +1756,7 @@ void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd)
 		qlt_send_notify_ack(vha, &mcmd->orig_iocb.imm_ntfy,
 		    0, 0, 0, 0, 0, 0);
 	else {
-		if (mcmd->se_cmd.se_tmr_req->function == TMR_ABORT_TASK)
+		if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX)
 			qlt_24xx_send_abts_resp(vha, &mcmd->orig_iocb.abts,
 			    mcmd->fc_tm_rsp, false);
 		else
@@ -2665,7 +2665,7 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
 			/* no need to terminate. FW already freed exchange. */
 			qlt_abort_cmd_on_host_reset(cmd->vha, cmd);
 		else
-			qlt_send_term_exchange(vha, cmd, &cmd->atio, 1);
+			qlt_send_term_exchange(vha, cmd, &cmd->atio, 1, 0);
 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
 		return 0;
 	}
@@ -3173,7 +3173,8 @@ static int __qlt_send_term_exchange(struct scsi_qla_host *vha,
 }
 
 static void qlt_send_term_exchange(struct scsi_qla_host *vha,
-	struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked)
+	struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked,
+	int ul_abort)
 {
 	unsigned long flags = 0;
 	int rc;
@@ -3193,8 +3194,7 @@ static void qlt_send_term_exchange(struct scsi_qla_host *vha,
 		qlt_alloc_qfull_cmd(vha, atio, 0, 0);
 
 done:
-	if (cmd && (!cmd->aborted ||
-	    !cmd->cmd_sent_to_fw)) {
+	if (cmd && !ul_abort && !cmd->aborted) {
 		if (cmd->sg_mapped)
 			qlt_unmap_sg(vha, cmd);
 		vha->hw->tgt.tgt_ops->free_cmd(cmd);
@@ -3253,21 +3253,38 @@ static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha)
 
 }
 
-void qlt_abort_cmd(struct qla_tgt_cmd *cmd)
+int qlt_abort_cmd(struct qla_tgt_cmd *cmd)
 {
 	struct qla_tgt *tgt = cmd->tgt;
 	struct scsi_qla_host *vha = tgt->vha;
 	struct se_cmd *se_cmd = &cmd->se_cmd;
+	unsigned long flags;
 
 	ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
 	    "qla_target(%d): terminating exchange for aborted cmd=%p "
 	    "(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd,
 	    se_cmd->tag);
 
+	spin_lock_irqsave(&cmd->cmd_lock, flags);
+	if (cmd->aborted) {
+		spin_unlock_irqrestore(&cmd->cmd_lock, flags);
+		/*
+		 * It's normal to see 2 calls in this path:
+		 *  1) XFER Rdy completion + CMD_T_ABORT
+		 *  2) TCM TMR - drain_state_list
+		 */
+	        ql_dbg(ql_dbg_tgt_mgt, vha, 0xffff,
+			"multiple abort. %p transport_state %x, t_state %x,"
+			" se_cmd_flags %x \n", cmd, cmd->se_cmd.transport_state,
+			cmd->se_cmd.t_state,cmd->se_cmd.se_cmd_flags);
+		return EIO;
+	}
 	cmd->aborted = 1;
 	cmd->cmd_flags |= BIT_6;
+	spin_unlock_irqrestore(&cmd->cmd_lock, flags);
 
-	qlt_send_term_exchange(vha, cmd, &cmd->atio, 0);
+	qlt_send_term_exchange(vha, cmd, &cmd->atio, 0, 1);
+	return 0;
 }
 EXPORT_SYMBOL(qlt_abort_cmd);
 
@@ -3282,6 +3299,9 @@ void qlt_free_cmd(struct qla_tgt_cmd *cmd)
 
 	BUG_ON(cmd->cmd_in_wq);
 
+	if (cmd->sg_mapped)
+		qlt_unmap_sg(cmd->vha, cmd);
+
 	if (!cmd->q_full)
 		qlt_decr_num_pend_cmds(cmd->vha);
 
@@ -3399,7 +3419,7 @@ static int qlt_term_ctio_exchange(struct scsi_qla_host *vha, void *ctio,
 		term = 1;
 
 	if (term)
-		qlt_send_term_exchange(vha, cmd, &cmd->atio, 1);
+		qlt_send_term_exchange(vha, cmd, &cmd->atio, 1, 0);
 
 	return term;
 }
@@ -3580,12 +3600,13 @@ static void qlt_do_ctio_completion(struct scsi_qla_host *vha, uint32_t handle,
 		case CTIO_PORT_LOGGED_OUT:
 		case CTIO_PORT_UNAVAILABLE:
 		{
-			int logged_out = (status & 0xFFFF);
+			int logged_out =
+				(status & 0xFFFF) == CTIO_PORT_LOGGED_OUT;
+
 			ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059,
 			    "qla_target(%d): CTIO with %s status %x "
 			    "received (state %x, se_cmd %p)\n", vha->vp_idx,
-			    (logged_out == CTIO_PORT_LOGGED_OUT) ?
-			    "PORT LOGGED OUT" : "PORT UNAVAILABLE",
+			    logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE",
 			    status, cmd->state, se_cmd);
 
 			if (logged_out && cmd->sess) {
@@ -3754,6 +3775,7 @@ static void __qlt_do_work(struct qla_tgt_cmd *cmd)
 		goto out_term;
 	}
 
+	spin_lock_init(&cmd->cmd_lock);
 	cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
 	cmd->se_cmd.tag = atio->u.isp24.exchange_addr;
 	cmd->unpacked_lun = scsilun_to_int(
@@ -3796,7 +3818,7 @@ out_term:
 	 */
 	cmd->cmd_flags |= BIT_2;
 	spin_lock_irqsave(&ha->hardware_lock, flags);
-	qlt_send_term_exchange(vha, NULL, &cmd->atio, 1);
+	qlt_send_term_exchange(vha, NULL, &cmd->atio, 1, 0);
 
 	qlt_decr_num_pend_cmds(vha);
 	percpu_ida_free(&sess->se_sess->sess_tag_pool, cmd->se_cmd.map_tag);
@@ -3918,7 +3940,7 @@ static void qlt_create_sess_from_atio(struct work_struct *work)
 
 out_term:
 	spin_lock_irqsave(&ha->hardware_lock, flags);
-	qlt_send_term_exchange(vha, NULL, &op->atio, 1);
+	qlt_send_term_exchange(vha, NULL, &op->atio, 1, 0);
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 	kfree(op);
 
@@ -3982,7 +4004,8 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
 
 	cmd->cmd_in_wq = 1;
 	cmd->cmd_flags |= BIT_0;
-	cmd->se_cmd.cpuid = -1;
+	cmd->se_cmd.cpuid = ha->msix_count ?
+		ha->tgt.rspq_vector_cpuid : WORK_CPU_UNBOUND;
 
 	spin_lock(&vha->cmd_list_lock);
 	list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list);
@@ -3990,7 +4013,6 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
 
 	INIT_WORK(&cmd->work, qlt_do_work);
 	if (ha->msix_count) {
-		cmd->se_cmd.cpuid = ha->tgt.rspq_vector_cpuid;
 		if (cmd->atio.u.isp24.fcp_cmnd.rddata)
 			queue_work_on(smp_processor_id(), qla_tgt_wq,
 			    &cmd->work);
@@ -4771,7 +4793,7 @@ out_reject:
 		dump_stack();
 	} else {
 		cmd->cmd_flags |= BIT_9;
-		qlt_send_term_exchange(vha, cmd, &cmd->atio, 1);
+		qlt_send_term_exchange(vha, cmd, &cmd->atio, 1, 0);
 	}
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 }
@@ -4950,7 +4972,7 @@ static void qlt_prepare_srr_imm(struct scsi_qla_host *vha,
 				    sctio, sctio->srr_id);
 				list_del(&sctio->srr_list_entry);
 				qlt_send_term_exchange(vha, sctio->cmd,
-				    &sctio->cmd->atio, 1);
+				    &sctio->cmd->atio, 1, 0);
 				kfree(sctio);
 			}
 		}
@@ -5123,7 +5145,7 @@ static int __qlt_send_busy(struct scsi_qla_host *vha,
 	    atio->u.isp24.fcp_hdr.s_id);
 	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
 	if (!sess) {
-		qlt_send_term_exchange(vha, NULL, atio, 1);
+		qlt_send_term_exchange(vha, NULL, atio, 1, 0);
 		return 0;
 	}
 	/* Sending marker isn't necessary, since we called from ISR */
@@ -5406,7 +5428,7 @@ static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
 #if 1 /* With TERM EXCHANGE some FC cards refuse to boot */
 				qlt_send_busy(vha, atio, SAM_STAT_BUSY);
 #else
-				qlt_send_term_exchange(vha, NULL, atio, 1);
+				qlt_send_term_exchange(vha, NULL, atio, 1, 0);
 #endif
 
 				if (!ha_locked)
@@ -5523,7 +5545,7 @@ static void qlt_response_pkt(struct scsi_qla_host *vha, response_t *pkt)
 #if 1 /* With TERM EXCHANGE some FC cards refuse to boot */
 				qlt_send_busy(vha, atio, 0);
 #else
-				qlt_send_term_exchange(vha, NULL, atio, 1);
+				qlt_send_term_exchange(vha, NULL, atio, 1, 0);
 #endif
 			} else {
 				if (tgt->tgt_stop) {
@@ -5532,7 +5554,7 @@ static void qlt_response_pkt(struct scsi_qla_host *vha, response_t *pkt)
 					    "command to target, sending TERM "
 					    "EXCHANGE for rsp\n");
 					qlt_send_term_exchange(vha, NULL,
-					    atio, 1);
+					    atio, 1, 0);
 				} else {
 					ql_dbg(ql_dbg_tgt, vha, 0xe060,
 					    "qla_target(%d): Unable to send "
@@ -5960,7 +5982,7 @@ static void qlt_tmr_work(struct qla_tgt *tgt,
 	return;
 
 out_term:
-	qlt_send_term_exchange(vha, NULL, &prm->tm_iocb2, 0);
+	qlt_send_term_exchange(vha, NULL, &prm->tm_iocb2, 1, 0);
 	if (sess)
 		ha->tgt.tgt_ops->put_sess(sess);
 	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index 71b2865..22a6a76 100644
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -943,6 +943,36 @@ struct qla_tgt_sess {
 	qlt_plogi_ack_t *plogi_link[QLT_PLOGI_LINK_MAX];
 };
 
+typedef enum {
+	/*
+	 * BIT_0 - Atio Arrival / schedule to work
+	 * BIT_1 - qlt_do_work
+	 * BIT_2 - qlt_do work failed
+	 * BIT_3 - xfer rdy/tcm_qla2xxx_write_pending
+	 * BIT_4 - read respond/tcm_qla2xx_queue_data_in
+	 * BIT_5 - status respond / tcm_qla2xx_queue_status
+	 * BIT_6 - tcm request to abort/Term exchange.
+	 *	pre_xmit_response->qlt_send_term_exchange
+	 * BIT_7 - SRR received (qlt_handle_srr->qlt_xmit_response)
+	 * BIT_8 - SRR received (qlt_handle_srr->qlt_rdy_to_xfer)
+	 * BIT_9 - SRR received (qla_handle_srr->qlt_send_term_exchange)
+	 * BIT_10 - Data in - hanlde_data->tcm_qla2xxx_handle_data
+
+	 * BIT_12 - good completion - qlt_ctio_do_completion -->free_cmd
+	 * BIT_13 - Bad completion -
+	 *	qlt_ctio_do_completion --> qlt_term_ctio_exchange
+	 * BIT_14 - Back end data received/sent.
+	 * BIT_15 - SRR prepare ctio
+	 * BIT_16 - complete free
+	 * BIT_17 - flush - qlt_abort_cmd_on_host_reset
+	 * BIT_18 - completion w/abort status
+	 * BIT_19 - completion w/unknown status
+	 * BIT_20 - tcm_qla2xxx_free_cmd
+	 */
+	CMD_FLAG_DATA_WORK = BIT_11,
+	CMD_FLAG_DATA_WORK_FREE = BIT_21,
+} cmd_flags_t;
+
 struct qla_tgt_cmd {
 	struct se_cmd se_cmd;
 	struct qla_tgt_sess *sess;
@@ -952,6 +982,7 @@ struct qla_tgt_cmd {
 	/* Sense buffer that will be mapped into outgoing status */
 	unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
 
+	spinlock_t cmd_lock;
 	/* to save extra sess dereferences */
 	unsigned int conf_compl_supported:1;
 	unsigned int sg_mapped:1;
@@ -986,30 +1017,8 @@ struct qla_tgt_cmd {
 
 	uint64_t jiffies_at_alloc;
 	uint64_t jiffies_at_free;
-	/* BIT_0 - Atio Arrival / schedule to work
-	 * BIT_1 - qlt_do_work
-	 * BIT_2 - qlt_do work failed
-	 * BIT_3 - xfer rdy/tcm_qla2xxx_write_pending
-	 * BIT_4 - read respond/tcm_qla2xx_queue_data_in
-	 * BIT_5 - status respond / tcm_qla2xx_queue_status
-	 * BIT_6 - tcm request to abort/Term exchange.
-	 *	pre_xmit_response->qlt_send_term_exchange
-	 * BIT_7 - SRR received (qlt_handle_srr->qlt_xmit_response)
-	 * BIT_8 - SRR received (qlt_handle_srr->qlt_rdy_to_xfer)
-	 * BIT_9 - SRR received (qla_handle_srr->qlt_send_term_exchange)
-	 * BIT_10 - Data in - hanlde_data->tcm_qla2xxx_handle_data
-	 * BIT_11 - Data actually going to TCM : tcm_qla2xx_handle_data_work
-	 * BIT_12 - good completion - qlt_ctio_do_completion -->free_cmd
-	 * BIT_13 - Bad completion -
-	 *	qlt_ctio_do_completion --> qlt_term_ctio_exchange
-	 * BIT_14 - Back end data received/sent.
-	 * BIT_15 - SRR prepare ctio
-	 * BIT_16 - complete free
-	 * BIT_17 - flush - qlt_abort_cmd_on_host_reset
-	 * BIT_18 - completion w/abort status
-	 * BIT_19 - completion w/unknown status
-	 */
-	uint32_t cmd_flags;
+
+	cmd_flags_t cmd_flags;
 };
 
 struct qla_tgt_sess_work_param {
@@ -1148,7 +1157,7 @@ static inline void sid_to_portid(const uint8_t *s_id, port_id_t *p)
 extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, response_t *);
 extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *);
 extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t);
-extern void qlt_abort_cmd(struct qla_tgt_cmd *);
+extern int qlt_abort_cmd(struct qla_tgt_cmd *);
 extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *);
 extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *);
 extern void qlt_free_cmd(struct qla_tgt_cmd *cmd);
diff --git a/drivers/scsi/qla2xxx/qla_tmpl.c b/drivers/scsi/qla2xxx/qla_tmpl.c
index ddbe2e7..c3e6225 100644
--- a/drivers/scsi/qla2xxx/qla_tmpl.c
+++ b/drivers/scsi/qla2xxx/qla_tmpl.c
@@ -395,6 +395,10 @@ qla27xx_fwdt_entry_t263(struct scsi_qla_host *vha,
 	if (ent->t263.queue_type == T263_QUEUE_TYPE_REQ) {
 		for (i = 0; i < vha->hw->max_req_queues; i++) {
 			struct req_que *req = vha->hw->req_q_map[i];
+
+			if (!test_bit(i, vha->hw->req_qid_map))
+				continue;
+
 			if (req || !buf) {
 				length = req ?
 				    req->length : REQUEST_ENTRY_CNT_24XX;
@@ -408,6 +412,10 @@ qla27xx_fwdt_entry_t263(struct scsi_qla_host *vha,
 	} else if (ent->t263.queue_type == T263_QUEUE_TYPE_RSP) {
 		for (i = 0; i < vha->hw->max_rsp_queues; i++) {
 			struct rsp_que *rsp = vha->hw->rsp_q_map[i];
+
+			if (!test_bit(i, vha->hw->rsp_qid_map))
+				continue;
+
 			if (rsp || !buf) {
 				length = rsp ?
 				    rsp->length : RESPONSE_ENTRY_CNT_MQ;
@@ -634,6 +642,10 @@ qla27xx_fwdt_entry_t274(struct scsi_qla_host *vha,
 	if (ent->t274.queue_type == T274_QUEUE_TYPE_REQ_SHAD) {
 		for (i = 0; i < vha->hw->max_req_queues; i++) {
 			struct req_que *req = vha->hw->req_q_map[i];
+
+			if (!test_bit(i, vha->hw->req_qid_map))
+				continue;
+
 			if (req || !buf) {
 				qla27xx_insert16(i, buf, len);
 				qla27xx_insert16(1, buf, len);
@@ -645,6 +657,10 @@ qla27xx_fwdt_entry_t274(struct scsi_qla_host *vha,
 	} else if (ent->t274.queue_type == T274_QUEUE_TYPE_RSP_SHAD) {
 		for (i = 0; i < vha->hw->max_rsp_queues; i++) {
 			struct rsp_que *rsp = vha->hw->rsp_q_map[i];
+
+			if (!test_bit(i, vha->hw->rsp_qid_map))
+				continue;
+
 			if (rsp || !buf) {
 				qla27xx_insert16(i, buf, len);
 				qla27xx_insert16(1, buf, len);
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index faf0a12..1808a01 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -298,6 +298,10 @@ static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd)
 {
 	cmd->vha->tgt_counters.core_qla_free_cmd++;
 	cmd->cmd_in_wq = 1;
+
+	BUG_ON(cmd->cmd_flags & BIT_20);
+	cmd->cmd_flags |= BIT_20;
+
 	INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free);
 	queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);
 }
@@ -374,6 +378,20 @@ static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd)
 {
 	struct qla_tgt_cmd *cmd = container_of(se_cmd,
 				struct qla_tgt_cmd, se_cmd);
+
+	if (cmd->aborted) {
+		/* Cmd can loop during Q-full.  tcm_qla2xxx_aborted_task
+		 * can get ahead of this cmd. tcm_qla2xxx_aborted_task
+		 * already kick start the free.
+		 */
+		pr_debug("write_pending aborted cmd[%p] refcount %d "
+			"transport_state %x, t_state %x, se_cmd_flags %x\n",
+			cmd,cmd->se_cmd.cmd_kref.refcount.counter,
+			cmd->se_cmd.transport_state,
+			cmd->se_cmd.t_state,
+			cmd->se_cmd.se_cmd_flags);
+		return 0;
+	}
 	cmd->cmd_flags |= BIT_3;
 	cmd->bufflen = se_cmd->data_length;
 	cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
@@ -405,7 +423,7 @@ static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd)
 	    se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) {
 		spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
 		wait_for_completion_timeout(&se_cmd->t_transport_stop_comp,
-					    3 * HZ);
+						50);
 		return 0;
 	}
 	spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
@@ -444,6 +462,9 @@ static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
 	if (bidi)
 		flags |= TARGET_SCF_BIDI_OP;
 
+	if (se_cmd->cpuid != WORK_CPU_UNBOUND)
+		flags |= TARGET_SCF_USE_CPUID;
+
 	sess = cmd->sess;
 	if (!sess) {
 		pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n");
@@ -465,13 +486,25 @@ static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
 static void tcm_qla2xxx_handle_data_work(struct work_struct *work)
 {
 	struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
+	unsigned long flags;
 
 	/*
 	 * Ensure that the complete FCP WRITE payload has been received.
 	 * Otherwise return an exception via CHECK_CONDITION status.
 	 */
 	cmd->cmd_in_wq = 0;
-	cmd->cmd_flags |= BIT_11;
+
+	spin_lock_irqsave(&cmd->cmd_lock, flags);
+	cmd->cmd_flags |= CMD_FLAG_DATA_WORK;
+	if (cmd->aborted) {
+		cmd->cmd_flags |= CMD_FLAG_DATA_WORK_FREE;
+		spin_unlock_irqrestore(&cmd->cmd_lock, flags);
+
+		tcm_qla2xxx_free_cmd(cmd);
+		return;
+	}
+	spin_unlock_irqrestore(&cmd->cmd_lock, flags);
+
 	cmd->vha->tgt_counters.qla_core_ret_ctio++;
 	if (!cmd->write_data_transferred) {
 		/*
@@ -546,6 +579,20 @@ static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd)
 	struct qla_tgt_cmd *cmd = container_of(se_cmd,
 				struct qla_tgt_cmd, se_cmd);
 
+	if (cmd->aborted) {
+		/* Cmd can loop during Q-full.  tcm_qla2xxx_aborted_task
+		 * can get ahead of this cmd. tcm_qla2xxx_aborted_task
+		 * already kick start the free.
+		 */
+		pr_debug("queue_data_in aborted cmd[%p] refcount %d "
+			"transport_state %x, t_state %x, se_cmd_flags %x\n",
+			cmd,cmd->se_cmd.cmd_kref.refcount.counter,
+			cmd->se_cmd.transport_state,
+			cmd->se_cmd.t_state,
+			cmd->se_cmd.se_cmd_flags);
+		return 0;
+	}
+
 	cmd->cmd_flags |= BIT_4;
 	cmd->bufflen = se_cmd->data_length;
 	cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
@@ -637,11 +684,34 @@ static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
 	qlt_xmit_tm_rsp(mcmd);
 }
 
+
+#define DATA_WORK_NOT_FREE(_flags) \
+	(( _flags & (CMD_FLAG_DATA_WORK|CMD_FLAG_DATA_WORK_FREE)) == \
+	 CMD_FLAG_DATA_WORK)
 static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd)
 {
 	struct qla_tgt_cmd *cmd = container_of(se_cmd,
 				struct qla_tgt_cmd, se_cmd);
-	qlt_abort_cmd(cmd);
+	unsigned long flags;
+
+	if (qlt_abort_cmd(cmd))
+		return;
+
+	spin_lock_irqsave(&cmd->cmd_lock, flags);
+	if ((cmd->state == QLA_TGT_STATE_NEW)||
+		((cmd->state == QLA_TGT_STATE_DATA_IN) &&
+		 DATA_WORK_NOT_FREE(cmd->cmd_flags)) ) {
+
+		cmd->cmd_flags |= CMD_FLAG_DATA_WORK_FREE;
+		spin_unlock_irqrestore(&cmd->cmd_lock, flags);
+		/* Cmd have not reached firmware.
+		 * Use this trigger to free it. */
+		tcm_qla2xxx_free_cmd(cmd);
+		return;
+	}
+	spin_unlock_irqrestore(&cmd->cmd_lock, flags);
+	return;
+
 }
 
 static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *,
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index 47b9d13..bbfbfd9 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -205,6 +205,8 @@ static struct {
 	{"Intel", "Multi-Flex", NULL, BLIST_NO_RSOC},
 	{"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
 	{"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
+	{"Marvell", "Console", NULL, BLIST_SKIP_VPD_PAGES},
+	{"Marvell", "91xx Config", "1.01", BLIST_SKIP_VPD_PAGES},
 	{"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
 	{"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
 	{"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 4f18a85..00bc721 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1272,16 +1272,18 @@ static void __scsi_remove_target(struct scsi_target *starget)
 void scsi_remove_target(struct device *dev)
 {
 	struct Scsi_Host *shost = dev_to_shost(dev->parent);
-	struct scsi_target *starget;
+	struct scsi_target *starget, *last_target = NULL;
 	unsigned long flags;
 
 restart:
 	spin_lock_irqsave(shost->host_lock, flags);
 	list_for_each_entry(starget, &shost->__targets, siblings) {
-		if (starget->state == STARGET_DEL)
+		if (starget->state == STARGET_DEL ||
+		    starget == last_target)
 			continue;
 		if (starget->dev.parent == dev || &starget->dev == dev) {
 			kref_get(&starget->reap_ref);
+			last_target = starget;
 			spin_unlock_irqrestore(shost->host_lock, flags);
 			__scsi_remove_target(starget);
 			scsi_target_reap(starget);
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index bb669d3..d749da7 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -761,7 +761,7 @@ static int sd_setup_discard_cmnd(struct scsi_cmnd *cmd)
 		break;
 
 	default:
-		ret = BLKPREP_KILL;
+		ret = BLKPREP_INVALID;
 		goto out;
 	}
 
@@ -839,7 +839,7 @@ static int sd_setup_write_same_cmnd(struct scsi_cmnd *cmd)
 	int ret;
 
 	if (sdkp->device->no_write_same)
-		return BLKPREP_KILL;
+		return BLKPREP_INVALID;
 
 	BUG_ON(bio_offset(bio) || bio_iovec(bio).bv_len != sdp->sector_size);
 
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 55627d0..292c04e 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -42,6 +42,7 @@
 #include <scsi/scsi_devinfo.h>
 #include <scsi/scsi_dbg.h>
 #include <scsi/scsi_transport_fc.h>
+#include <scsi/scsi_transport.h>
 
 /*
  * All wire protocol details (storage protocol between the guest and the host)
@@ -477,19 +478,18 @@ struct hv_host_device {
 struct storvsc_scan_work {
 	struct work_struct work;
 	struct Scsi_Host *host;
-	uint lun;
+	u8 lun;
+	u8 tgt_id;
 };
 
 static void storvsc_device_scan(struct work_struct *work)
 {
 	struct storvsc_scan_work *wrk;
-	uint lun;
 	struct scsi_device *sdev;
 
 	wrk = container_of(work, struct storvsc_scan_work, work);
-	lun = wrk->lun;
 
-	sdev = scsi_device_lookup(wrk->host, 0, 0, lun);
+	sdev = scsi_device_lookup(wrk->host, 0, wrk->tgt_id, wrk->lun);
 	if (!sdev)
 		goto done;
 	scsi_rescan_device(&sdev->sdev_gendev);
@@ -540,7 +540,7 @@ static void storvsc_remove_lun(struct work_struct *work)
 	if (!scsi_host_get(wrk->host))
 		goto done;
 
-	sdev = scsi_device_lookup(wrk->host, 0, 0, wrk->lun);
+	sdev = scsi_device_lookup(wrk->host, 0, wrk->tgt_id, wrk->lun);
 
 	if (sdev) {
 		scsi_remove_device(sdev);
@@ -940,6 +940,7 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb,
 
 	wrk->host = host;
 	wrk->lun = vm_srb->lun;
+	wrk->tgt_id = vm_srb->target_id;
 	INIT_WORK(&wrk->work, process_err_fn);
 	schedule_work(&wrk->work);
 }
@@ -1770,6 +1771,11 @@ static int __init storvsc_drv_init(void)
 	fc_transport_template = fc_attach_transport(&fc_transport_functions);
 	if (!fc_transport_template)
 		return -ENODEV;
+
+	/*
+	 * Install Hyper-V specific timeout handler.
+	 */
+	fc_transport_template->eh_timed_out = storvsc_eh_timed_out;
 #endif
 
 	ret = vmbus_driver_register(&storvsc_drv);
diff --git a/drivers/sh/pm_runtime.c b/drivers/sh/pm_runtime.c
index 91a00301..a9bac3b 100644
--- a/drivers/sh/pm_runtime.c
+++ b/drivers/sh/pm_runtime.c
@@ -34,7 +34,7 @@ static struct pm_clk_notifier_block platform_bus_notifier = {
 
 static int __init sh_pm_runtime_init(void)
 {
-	if (IS_ENABLED(CONFIG_ARCH_SHMOBILE)) {
+	if (IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_ARCH_SHMOBILE)) {
 		if (!of_find_compatible_node(NULL, NULL,
 					     "renesas,cpg-mstp-clocks"))
 			return 0;
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index aebad36..8feac59 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1571,6 +1571,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
 
 	as->use_cs_gpios = true;
 	if (atmel_spi_is_v2(as) &&
+	    pdev->dev.of_node &&
 	    !of_get_property(pdev->dev.of_node, "cs-gpios", NULL)) {
 		as->use_cs_gpios = false;
 		master->num_chipselect = 4;
diff --git a/drivers/spi/spi-bcm2835aux.c b/drivers/spi/spi-bcm2835aux.c
index 7de6f84..ecc73c0 100644
--- a/drivers/spi/spi-bcm2835aux.c
+++ b/drivers/spi/spi-bcm2835aux.c
@@ -73,8 +73,8 @@
 
 /* Bitfields in CNTL1 */
 #define BCM2835_AUX_SPI_CNTL1_CSHIGH	0x00000700
-#define BCM2835_AUX_SPI_CNTL1_IDLE	0x00000080
-#define BCM2835_AUX_SPI_CNTL1_TXEMPTY	0x00000040
+#define BCM2835_AUX_SPI_CNTL1_TXEMPTY	0x00000080
+#define BCM2835_AUX_SPI_CNTL1_IDLE	0x00000040
 #define BCM2835_AUX_SPI_CNTL1_MSBF_IN	0x00000002
 #define BCM2835_AUX_SPI_CNTL1_KEEP_IN	0x00000001
 
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index 7fd6a4c..7cb0c19 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -84,7 +84,7 @@ struct fsl_espi_transfer {
 /* SPCOM register values */
 #define SPCOM_CS(x)		((x) << 30)
 #define SPCOM_TRANLEN(x)	((x) << 0)
-#define	SPCOM_TRANLEN_MAX	0xFFFF	/* Max transaction length */
+#define	SPCOM_TRANLEN_MAX	0x10000	/* Max transaction length */
 
 #define AUTOSUSPEND_TIMEOUT 2000
 
@@ -233,7 +233,7 @@ static int fsl_espi_bufs(struct spi_device *spi, struct spi_transfer *t)
 	reinit_completion(&mpc8xxx_spi->done);
 
 	/* Set SPCOM[CS] and SPCOM[TRANLEN] field */
-	if ((t->len - 1) > SPCOM_TRANLEN_MAX) {
+	if (t->len > SPCOM_TRANLEN_MAX) {
 		dev_err(mpc8xxx_spi->dev, "Transaction length (%d)"
 				" beyond the SPCOM[TRANLEN] field\n", t->len);
 		return -EINVAL;
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index d98c33c..6a4ff27 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -929,7 +929,7 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
 					tx->sgl, tx->nents, DMA_MEM_TO_DEV,
 					DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 		if (!desc_tx)
-			goto no_dma;
+			goto tx_nodma;
 
 		desc_tx->callback = spi_imx_dma_tx_callback;
 		desc_tx->callback_param = (void *)spi_imx;
@@ -941,7 +941,7 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
 					rx->sgl, rx->nents, DMA_DEV_TO_MEM,
 					DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 		if (!desc_rx)
-			goto no_dma;
+			goto rx_nodma;
 
 		desc_rx->callback = spi_imx_dma_rx_callback;
 		desc_rx->callback_param = (void *)spi_imx;
@@ -1008,7 +1008,9 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
 
 	return ret;
 
-no_dma:
+rx_nodma:
+	dmaengine_terminate_all(master->dma_tx);
+tx_nodma:
 	pr_warn_once("%s %s: DMA not available, falling back to PIO\n",
 		     dev_driver_string(&master->dev),
 		     dev_name(&master->dev));
diff --git a/drivers/spi/spi-loopback-test.c b/drivers/spi/spi-loopback-test.c
index 894616f..cf4bb36 100644
--- a/drivers/spi/spi-loopback-test.c
+++ b/drivers/spi/spi-loopback-test.c
@@ -761,6 +761,7 @@ static int spi_test_run_iter(struct spi_device *spi,
 		test.iterate_transfer_mask = 1;
 
 	/* count number of transfers with tx/rx_buf != NULL */
+	rx_count = tx_count = 0;
 	for (i = 0; i < test.transfer_count; i++) {
 		if (test.transfers[i].tx_buf)
 			tx_count++;
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index 7273820..0caa3c8 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -1490,6 +1490,8 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
 	return status;
 
 disable_pm:
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
+	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 free_master:
 	spi_master_put(master);
@@ -1501,6 +1503,7 @@ static int omap2_mcspi_remove(struct platform_device *pdev)
 	struct spi_master *master = platform_get_drvdata(pdev);
 	struct omap2_mcspi *mcspi = spi_master_get_devdata(master);
 
+	pm_runtime_dont_use_autosuspend(mcspi->dev);
 	pm_runtime_put_sync(mcspi->dev);
 	pm_runtime_disable(&pdev->dev);
 
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index be822f7..aca282d 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -10,6 +10,7 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */
+#include <linux/bitmap.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
@@ -47,9 +48,9 @@
 #define SPMI_MAPPING_BIT_IS_1_FLAG(X)	(((X) >> 8) & 0x1)
 #define SPMI_MAPPING_BIT_IS_1_RESULT(X)	(((X) >> 0) & 0xFF)
 
-#define SPMI_MAPPING_TABLE_LEN		255
 #define SPMI_MAPPING_TABLE_TREE_DEPTH	16	/* Maximum of 16-bits */
-#define PPID_TO_CHAN_TABLE_SZ		BIT(12)	/* PPID is 12bit chan is 1byte*/
+#define PMIC_ARB_MAX_PPID		BIT(12) /* PPID is 12bit */
+#define PMIC_ARB_CHAN_VALID		BIT(15)
 
 /* Ownership Table */
 #define SPMI_OWNERSHIP_TABLE_REG(N)	(0x0700 + (4 * (N)))
@@ -85,9 +86,7 @@ enum pmic_arb_cmd_op_code {
 };
 
 /* Maximum number of support PMIC peripherals */
-#define PMIC_ARB_MAX_PERIPHS		256
-#define PMIC_ARB_MAX_CHNL		128
-#define PMIC_ARB_PERIPH_ID_VALID	(1 << 15)
+#define PMIC_ARB_MAX_PERIPHS		512
 #define PMIC_ARB_TIMEOUT_US		100
 #define PMIC_ARB_MAX_TRANS_BYTES	(8)
 
@@ -125,18 +124,22 @@ struct spmi_pmic_arb_dev {
 	void __iomem		*wr_base;
 	void __iomem		*intr;
 	void __iomem		*cnfg;
+	void __iomem		*core;
+	resource_size_t		core_size;
 	raw_spinlock_t		lock;
 	u8			channel;
 	int			irq;
 	u8			ee;
-	u8			min_apid;
-	u8			max_apid;
-	u32			mapping_table[SPMI_MAPPING_TABLE_LEN];
+	u16			min_apid;
+	u16			max_apid;
+	u32			*mapping_table;
+	DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS);
 	struct irq_domain	*domain;
 	struct spmi_controller	*spmic;
-	u16			apid_to_ppid[256];
+	u16			*apid_to_ppid;
 	const struct pmic_arb_ver_ops *ver_ops;
-	u8			*ppid_to_chan;
+	u16			*ppid_to_chan;
+	u16			last_channel;
 };
 
 /**
@@ -158,7 +161,8 @@ struct spmi_pmic_arb_dev {
  */
 struct pmic_arb_ver_ops {
 	/* spmi commands (read_cmd, write_cmd, cmd) functionality */
-	u32 (*offset)(struct spmi_pmic_arb_dev *dev, u8 sid, u16 addr);
+	int (*offset)(struct spmi_pmic_arb_dev *dev, u8 sid, u16 addr,
+		      u32 *offset);
 	u32 (*fmt_cmd)(u8 opc, u8 sid, u16 addr, u8 bc);
 	int (*non_data_cmd)(struct spmi_controller *ctrl, u8 opc, u8 sid);
 	/* Interrupts controller functionality (offset of PIC registers) */
@@ -212,7 +216,14 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
 	struct spmi_pmic_arb_dev *dev = spmi_controller_get_drvdata(ctrl);
 	u32 status = 0;
 	u32 timeout = PMIC_ARB_TIMEOUT_US;
-	u32 offset = dev->ver_ops->offset(dev, sid, addr) + PMIC_ARB_STATUS;
+	u32 offset;
+	int rc;
+
+	rc = dev->ver_ops->offset(dev, sid, addr, &offset);
+	if (rc)
+		return rc;
+
+	offset += PMIC_ARB_STATUS;
 
 	while (timeout--) {
 		status = readl_relaxed(base + offset);
@@ -257,7 +268,11 @@ pmic_arb_non_data_cmd_v1(struct spmi_controller *ctrl, u8 opc, u8 sid)
 	unsigned long flags;
 	u32 cmd;
 	int rc;
-	u32 offset = pmic_arb->ver_ops->offset(pmic_arb, sid, 0);
+	u32 offset;
+
+	rc = pmic_arb->ver_ops->offset(pmic_arb, sid, 0, &offset);
+	if (rc)
+		return rc;
 
 	cmd = ((opc | 0x40) << 27) | ((sid & 0xf) << 20);
 
@@ -297,7 +312,11 @@ static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
 	u8 bc = len - 1;
 	u32 cmd;
 	int rc;
-	u32 offset = pmic_arb->ver_ops->offset(pmic_arb, sid, addr);
+	u32 offset;
+
+	rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr, &offset);
+	if (rc)
+		return rc;
 
 	if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
 		dev_err(&ctrl->dev,
@@ -344,7 +363,11 @@ static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
 	u8 bc = len - 1;
 	u32 cmd;
 	int rc;
-	u32 offset = pmic_arb->ver_ops->offset(pmic_arb, sid, addr);
+	u32 offset;
+
+	rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr, &offset);
+	if (rc)
+		return rc;
 
 	if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
 		dev_err(&ctrl->dev,
@@ -614,6 +637,10 @@ static int search_mapping_table(struct spmi_pmic_arb_dev *pa,
 	u32 data;
 
 	for (i = 0; i < SPMI_MAPPING_TABLE_TREE_DEPTH; ++i) {
+		if (!test_and_set_bit(index, pa->mapping_table_valid))
+			mapping_table[index] = readl_relaxed(pa->cnfg +
+						SPMI_MAPPING_TABLE_REG(index));
+
 		data = mapping_table[index];
 
 		if (ppid & (1 << SPMI_MAPPING_BIT_INDEX(data))) {
@@ -701,18 +728,61 @@ static int qpnpint_irq_domain_map(struct irq_domain *d,
 }
 
 /* v1 offset per ee */
-static u32 pmic_arb_offset_v1(struct spmi_pmic_arb_dev *pa, u8 sid, u16 addr)
+static int
+pmic_arb_offset_v1(struct spmi_pmic_arb_dev *pa, u8 sid, u16 addr, u32 *offset)
 {
-	return 0x800 + 0x80 * pa->channel;
+	*offset = 0x800 + 0x80 * pa->channel;
+	return 0;
 }
 
+static u16 pmic_arb_find_chan(struct spmi_pmic_arb_dev *pa, u16 ppid)
+{
+	u32 regval, offset;
+	u16 chan;
+	u16 id;
+
+	/*
+	 * PMIC_ARB_REG_CHNL is a table in HW mapping channel to ppid.
+	 * ppid_to_chan is an in-memory invert of that table.
+	 */
+	for (chan = pa->last_channel; ; chan++) {
+		offset = PMIC_ARB_REG_CHNL(chan);
+		if (offset >= pa->core_size)
+			break;
+
+		regval = readl_relaxed(pa->core + offset);
+		if (!regval)
+			continue;
+
+		id = (regval >> 8) & PMIC_ARB_PPID_MASK;
+		pa->ppid_to_chan[id] = chan | PMIC_ARB_CHAN_VALID;
+		if (id == ppid) {
+			chan |= PMIC_ARB_CHAN_VALID;
+			break;
+		}
+	}
+	pa->last_channel = chan & ~PMIC_ARB_CHAN_VALID;
+
+	return chan;
+}
+
+
 /* v2 offset per ppid (chan) and per ee */
-static u32 pmic_arb_offset_v2(struct spmi_pmic_arb_dev *pa, u8 sid, u16 addr)
+static int
+pmic_arb_offset_v2(struct spmi_pmic_arb_dev *pa, u8 sid, u16 addr, u32 *offset)
 {
 	u16 ppid = (sid << 8) | (addr >> 8);
-	u8  chan = pa->ppid_to_chan[ppid];
+	u16 chan;
 
-	return 0x1000 * pa->ee + 0x8000 * chan;
+	chan = pa->ppid_to_chan[ppid];
+	if (!(chan & PMIC_ARB_CHAN_VALID))
+		chan = pmic_arb_find_chan(pa, ppid);
+	if (!(chan & PMIC_ARB_CHAN_VALID))
+		return -ENODEV;
+	chan &= ~PMIC_ARB_CHAN_VALID;
+
+	*offset = 0x1000 * pa->ee + 0x8000 * chan;
+	return 0;
 }
 
 static u32 pmic_arb_fmt_cmd_v1(u8 opc, u8 sid, u16 addr, u8 bc)
@@ -797,7 +867,7 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 	struct resource *res;
 	void __iomem *core;
 	u32 channel, ee, hw_ver;
-	int err, i;
+	int err;
 	bool is_v1;
 
 	ctrl = spmi_controller_alloc(&pdev->dev, sizeof(*pa));
@@ -808,6 +878,7 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 	pa->spmic = ctrl;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
+	pa->core_size = resource_size(res);
 	core = devm_ioremap_resource(&ctrl->dev, res);
 	if (IS_ERR(core)) {
 		err = PTR_ERR(core);
@@ -825,10 +896,7 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 		pa->wr_base = core;
 		pa->rd_base = core;
 	} else {
-		u8  chan;
-		u16 ppid;
-		u32 regval;
-
+		pa->core = core;
 		pa->ver_ops = &pmic_arb_v2;
 
 		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
@@ -847,24 +915,14 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 			goto err_put_ctrl;
 		}
 
-		pa->ppid_to_chan = devm_kzalloc(&ctrl->dev,
-					PPID_TO_CHAN_TABLE_SZ, GFP_KERNEL);
+		pa->ppid_to_chan = devm_kcalloc(&ctrl->dev,
+						PMIC_ARB_MAX_PPID,
+						sizeof(*pa->ppid_to_chan),
+						GFP_KERNEL);
 		if (!pa->ppid_to_chan) {
 			err = -ENOMEM;
 			goto err_put_ctrl;
 		}
-		/*
-		 * PMIC_ARB_REG_CHNL is a table in HW mapping channel to ppid.
-		 * ppid_to_chan is an in-memory invert of that table.
-		 */
-		for (chan = 0; chan < PMIC_ARB_MAX_CHNL; ++chan) {
-			regval = readl_relaxed(core + PMIC_ARB_REG_CHNL(chan));
-			if (!regval)
-				continue;
-
-			ppid = (regval >> 8) & 0xFFF;
-			pa->ppid_to_chan[ppid] = chan;
-		}
 	}
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr");
@@ -915,9 +973,20 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 
 	pa->ee = ee;
 
-	for (i = 0; i < ARRAY_SIZE(pa->mapping_table); ++i)
-		pa->mapping_table[i] = readl_relaxed(
-				pa->cnfg + SPMI_MAPPING_TABLE_REG(i));
+	pa->apid_to_ppid = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PERIPHS,
+					    sizeof(*pa->apid_to_ppid),
+					    GFP_KERNEL);
+	if (!pa->apid_to_ppid) {
+		err = -ENOMEM;
+		goto err_put_ctrl;
+	}
+
+	pa->mapping_table = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PERIPHS - 1,
+					sizeof(*pa->mapping_table), GFP_KERNEL);
+	if (!pa->mapping_table) {
+		err = -ENOMEM;
+		goto err_put_ctrl;
+	}
 
 	/* Initialize max_apid/min_apid to the opposite bounds, during
 	 * the irq domain translation, we are sure to update these */
diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c
index 2ab0c20..3a8f210 100644
--- a/drivers/staging/android/sync.c
+++ b/drivers/staging/android/sync.c
@@ -424,7 +424,7 @@ static unsigned int sync_file_poll(struct file *file, poll_table *wait)
 
 	if (!status)
 		return POLLIN;
-	else if (status < 0)
+	if (status < 0)
 		return POLLERR;
 	return 0;
 }
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index d57fade..d1cf6a1 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -686,13 +686,6 @@ static bool __comedi_is_subdevice_running(struct comedi_subdevice *s)
 	return comedi_is_runflags_running(runflags);
 }
 
-static bool comedi_is_subdevice_idle(struct comedi_subdevice *s)
-{
-	unsigned runflags = comedi_get_subdevice_runflags(s);
-
-	return !(runflags & COMEDI_SRF_BUSY_MASK);
-}
-
 bool comedi_can_auto_free_spriv(struct comedi_subdevice *s)
 {
 	unsigned runflags = __comedi_get_subdevice_runflags(s);
@@ -1111,6 +1104,9 @@ static int do_bufinfo_ioctl(struct comedi_device *dev,
 	struct comedi_bufinfo bi;
 	struct comedi_subdevice *s;
 	struct comedi_async *async;
+	unsigned int runflags;
+	int retval = 0;
+	bool become_nonbusy = false;
 
 	if (copy_from_user(&bi, arg, sizeof(bi)))
 		return -EFAULT;
@@ -1122,48 +1118,56 @@ static int do_bufinfo_ioctl(struct comedi_device *dev,
 
 	async = s->async;
 
-	if (!async) {
-		dev_dbg(dev->class_dev,
-			"subdevice does not have async capability\n");
-		bi.buf_write_ptr = 0;
-		bi.buf_read_ptr = 0;
-		bi.buf_write_count = 0;
-		bi.buf_read_count = 0;
-		bi.bytes_read = 0;
-		bi.bytes_written = 0;
-		goto copyback;
-	}
-	if (!s->busy) {
-		bi.bytes_read = 0;
-		bi.bytes_written = 0;
-		goto copyback_position;
-	}
-	if (s->busy != file)
-		return -EACCES;
-
-	if (bi.bytes_read && !(async->cmd.flags & CMDF_WRITE)) {
-		bi.bytes_read = comedi_buf_read_alloc(s, bi.bytes_read);
-		comedi_buf_read_free(s, bi.bytes_read);
+	if (!async || s->busy != file)
+		return -EINVAL;
 
-		if (comedi_is_subdevice_idle(s) &&
-		    comedi_buf_read_n_available(s) == 0) {
-			do_become_nonbusy(dev, s);
+	runflags = comedi_get_subdevice_runflags(s);
+	if (!(async->cmd.flags & CMDF_WRITE)) {
+		/* command was set up in "read" direction */
+		if (bi.bytes_read) {
+			comedi_buf_read_alloc(s, bi.bytes_read);
+			bi.bytes_read = comedi_buf_read_free(s, bi.bytes_read);
 		}
+		/*
+		 * If nothing left to read, and command has stopped, and
+		 * {"read" position not updated or command stopped normally},
+		 * then become non-busy.
+		 */
+		if (comedi_buf_read_n_available(s) == 0 &&
+		    !comedi_is_runflags_running(runflags) &&
+		    (bi.bytes_read == 0 ||
+		     !comedi_is_runflags_in_error(runflags))) {
+			become_nonbusy = true;
+			if (comedi_is_runflags_in_error(runflags))
+				retval = -EPIPE;
+		}
+		bi.bytes_written = 0;
+	} else {
+		/* command was set up in "write" direction */
+		if (!comedi_is_runflags_running(runflags)) {
+			bi.bytes_written = 0;
+			become_nonbusy = true;
+			if (comedi_is_runflags_in_error(runflags))
+				retval = -EPIPE;
+		} else if (bi.bytes_written) {
+			comedi_buf_write_alloc(s, bi.bytes_written);
+			bi.bytes_written =
+			    comedi_buf_write_free(s, bi.bytes_written);
+		}
+		bi.bytes_read = 0;
 	}
 
-	if (bi.bytes_written && (async->cmd.flags & CMDF_WRITE)) {
-		bi.bytes_written =
-		    comedi_buf_write_alloc(s, bi.bytes_written);
-		comedi_buf_write_free(s, bi.bytes_written);
-	}
-
-copyback_position:
 	bi.buf_write_count = async->buf_write_count;
 	bi.buf_write_ptr = async->buf_write_ptr;
 	bi.buf_read_count = async->buf_read_count;
 	bi.buf_read_ptr = async->buf_read_ptr;
 
-copyback:
+	if (become_nonbusy)
+		do_become_nonbusy(dev, s);
+
+	if (retval)
+		return retval;
+
 	if (copy_to_user(arg, &bi, sizeof(bi)))
 		return -EFAULT;
 
diff --git a/drivers/staging/comedi/drivers/addi_apci_3xxx.c b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
index 995096c..b6af3eb 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3xxx.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
@@ -496,7 +496,7 @@ static int apci3xxx_ai_ns_to_timer(struct comedi_device *dev,
 		switch (flags & CMDF_ROUND_MASK) {
 		case CMDF_ROUND_NEAREST:
 		default:
-			timer = (*ns + base / 2) / base;
+			timer = DIV_ROUND_CLOSEST(*ns, base);
 			break;
 		case CMDF_ROUND_DOWN:
 			timer = *ns / base;
diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
index 4b39f69..d1fe88a 100644
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -637,7 +637,7 @@ static unsigned int pci230_divide_ns(uint64_t ns, unsigned int timebase,
 	switch (flags & CMDF_ROUND_MASK) {
 	default:
 	case CMDF_ROUND_NEAREST:
-		div += (rem + (timebase / 2)) / timebase;
+		div += DIV_ROUND_CLOSEST(rem, timebase);
 		break;
 	case CMDF_ROUND_DOWN:
 		break;
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index d33b8fe..e918d42 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -1376,7 +1376,7 @@ static int set_ai_fifo_segment_length(struct comedi_device *dev,
 		num_entries = fifo->max_segment_length;
 
 	/*  1 == 256 entries, 2 == 512 entries, etc */
-	num_increments = (num_entries + increment_size / 2) / increment_size;
+	num_increments = DIV_ROUND_CLOSEST(num_entries, increment_size);
 
 	bits = (~(num_increments - 1)) & fifo->fifo_size_reg_mask;
 	devpriv->fifo_size_bits &= ~fifo->fifo_size_reg_mask;
@@ -2004,7 +2004,7 @@ static unsigned int get_divisor(unsigned int ns, unsigned int flags)
 		break;
 	case CMDF_ROUND_NEAREST:
 	default:
-		divisor = (ns + TIMER_BASE / 2) / TIMER_BASE;
+		divisor = DIV_ROUND_CLOSEST(ns, TIMER_BASE);
 		break;
 	}
 	return divisor;
diff --git a/drivers/staging/comedi/drivers/comedi_isadma.c b/drivers/staging/comedi/drivers/comedi_isadma.c
index 6ba71d1..68ef9b1 100644
--- a/drivers/staging/comedi/drivers/comedi_isadma.c
+++ b/drivers/staging/comedi/drivers/comedi_isadma.c
@@ -132,8 +132,7 @@ unsigned int comedi_isadma_poll(struct comedi_isadma *dma)
 		result = result1;
 	if (result >= desc->size || result == 0)
 		return 0;
-	else
-		return desc->size - result;
+	return desc->size - result;
 }
 EXPORT_SYMBOL_GPL(comedi_isadma_poll);
 
diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
index 5a536a0..6c26e09 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -371,7 +371,7 @@ static unsigned int dt282x_ns_to_timer(unsigned int *ns, unsigned int flags)
 		switch (flags & CMDF_ROUND_MASK) {
 		case CMDF_ROUND_NEAREST:
 		default:
-			divider = (*ns + base / 2) / base;
+			divider = DIV_ROUND_CLOSEST(*ns, base);
 			break;
 		case CMDF_ROUND_DOWN:
 			divider = (*ns) / base;
diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
index ab7a332..19e0b7b 100644
--- a/drivers/staging/comedi/drivers/dt3000.c
+++ b/drivers/staging/comedi/drivers/dt3000.c
@@ -361,7 +361,7 @@ static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *nanosec,
 		switch (flags & CMDF_ROUND_MASK) {
 		case CMDF_ROUND_NEAREST:
 		default:
-			divider = (*nanosec + base / 2) / base;
+			divider = DIV_ROUND_CLOSEST(*nanosec, base);
 			break;
 		case CMDF_ROUND_DOWN:
 			divider = (*nanosec) / base;
diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c
index ac79099..67b9f22 100644
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ b/drivers/staging/comedi/drivers/ni_pcidio.c
@@ -525,7 +525,7 @@ static int ni_pcidio_ns_to_timer(int *nanosec, unsigned int flags)
 	switch (flags & CMDF_ROUND_MASK) {
 	case CMDF_ROUND_NEAREST:
 	default:
-		divider = (*nanosec + base / 2) / base;
+		divider = DIV_ROUND_CLOSEST(*nanosec, base);
 		break;
 	case CMDF_ROUND_DOWN:
 		divider = (*nanosec) / base;
diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index a1f624f..d38673c 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -21,7 +21,6 @@
 #include <linux/ioport.h>
 #include <linux/slab.h>
 #include <linux/errno.h>
-#include <linux/init.h>
 #include <linux/list.h>
 #include <linux/interrupt.h>
 #include <linux/proc_fs.h>
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 3bcbabf..6c9cdd2 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -130,7 +130,8 @@ static int fbtft_request_gpios(struct fbtft_par *par)
 	while (gpio->name[0]) {
 		flags = FBTFT_GPIO_NO_MATCH;
 		/* if driver provides match function, try it first,
-		   if no match use our own */
+		 * if no match use our own
+		 */
 		if (par->fbtftops.request_gpios_match)
 			flags = par->fbtftops.request_gpios_match(par, gpio);
 		if (flags == FBTFT_GPIO_NO_MATCH)
@@ -518,8 +519,7 @@ static ssize_t fbtft_fb_write(struct fb_info *info, const char __user *buf,
 		"%s: count=%zd, ppos=%llu\n", __func__,  count, *ppos);
 	res = fb_sys_write(info, buf, count, ppos);
 
-	/* TODO: only mark changed area
-	   update all for now */
+	/* TODO: only mark changed area update all for now */
 	par->fbtftops.mkdirty(info, -1, 0);
 
 	return res;
diff --git a/drivers/staging/fsl-mc/bus/Kconfig b/drivers/staging/fsl-mc/bus/Kconfig
index c498ac6..1f95933 100644
--- a/drivers/staging/fsl-mc/bus/Kconfig
+++ b/drivers/staging/fsl-mc/bus/Kconfig
@@ -7,7 +7,7 @@
 #
 
 config FSL_MC_BUS
-	tristate "Freescale Management Complex (MC) bus driver"
+	bool "Freescale Management Complex (MC) bus driver"
 	depends on OF && ARM64
 	select GENERIC_MSI_IRQ_DOMAIN
 	help
diff --git a/drivers/staging/fsl-mc/bus/mc-allocator.c b/drivers/staging/fsl-mc/bus/mc-allocator.c
index c5fa628..86f8543 100644
--- a/drivers/staging/fsl-mc/bus/mc-allocator.c
+++ b/drivers/staging/fsl-mc/bus/mc-allocator.c
@@ -756,7 +756,7 @@ int __init fsl_mc_allocator_driver_init(void)
 	return fsl_mc_driver_register(&fsl_mc_allocator_driver);
 }
 
-void __exit fsl_mc_allocator_driver_exit(void)
+void fsl_mc_allocator_driver_exit(void)
 {
 	fsl_mc_driver_unregister(&fsl_mc_allocator_driver);
 }
diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c
index 9317561..5958e0f 100644
--- a/drivers/staging/fsl-mc/bus/mc-bus.c
+++ b/drivers/staging/fsl-mc/bus/mc-bus.c
@@ -248,8 +248,7 @@ static bool fsl_mc_is_root_dprc(struct device *dev)
 	fsl_mc_get_root_dprc(dev, &root_dprc_dev);
 	if (!root_dprc_dev)
 		return false;
-	else
-		return dev == root_dprc_dev;
+	return dev == root_dprc_dev;
 }
 
 static int get_dprc_icid(struct fsl_mc_io *mc_io,
@@ -795,7 +794,6 @@ MODULE_DEVICE_TABLE(of, fsl_mc_bus_match_table);
 static struct platform_driver fsl_mc_bus_driver = {
 	.driver = {
 		   .name = "fsl_mc_bus",
-		   .owner = THIS_MODULE,
 		   .pm = NULL,
 		   .of_match_table = fsl_mc_bus_match_table,
 		   },
diff --git a/drivers/staging/fsl-mc/include/mc-private.h b/drivers/staging/fsl-mc/include/mc-private.h
index be72a44..ee5f1d2 100644
--- a/drivers/staging/fsl-mc/include/mc-private.h
+++ b/drivers/staging/fsl-mc/include/mc-private.h
@@ -123,7 +123,7 @@ void dprc_driver_exit(void);
 
 int __init fsl_mc_allocator_driver_init(void);
 
-void __exit fsl_mc_allocator_driver_exit(void);
+void fsl_mc_allocator_driver_exit(void);
 
 int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus,
 					  enum fsl_mc_pool_type pool_type,
diff --git a/drivers/staging/gdm72xx/gdm_qos.c b/drivers/staging/gdm72xx/gdm_qos.c
index 8c99f91..9fc476f 100644
--- a/drivers/staging/gdm72xx/gdm_qos.c
+++ b/drivers/staging/gdm72xx/gdm_qos.c
@@ -261,7 +261,7 @@ int gdm_qos_send_hci_pkt(struct sk_buff *skb, struct net_device *dev)
 	struct list_head send_list;
 	int ret = 0;
 
-	tcph = (struct tcphdr *)iph + iph->ihl*4;
+	tcph = (struct tcphdr *)iph + iph->ihl * 4;
 
 	if (ethh->h_proto == cpu_to_be16(ETH_P_IP)) {
 		if (qcb->qos_list_cnt && !qos_free_list.cnt) {
@@ -342,17 +342,17 @@ void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size)
 	if (sub_cmd_evt == QOS_REPORT) {
 		spin_lock_irqsave(&qcb->qos_lock, flags);
 		for (i = 0; i < qcb->qos_list_cnt; i++) {
-			sfid = ((buf[(i*5) + 6] << 24) & 0xff000000);
-			sfid += ((buf[(i*5) + 7] << 16) & 0xff0000);
-			sfid += ((buf[(i*5) + 8] << 8) & 0xff00);
-			sfid += (buf[(i*5) + 9]);
+			sfid = ((buf[(i * 5) + 6] << 24) & 0xff000000);
+			sfid += ((buf[(i * 5) + 7] << 16) & 0xff0000);
+			sfid += ((buf[(i * 5) + 8] << 8) & 0xff00);
+			sfid += (buf[(i * 5) + 9]);
 			index = get_csr(qcb, sfid, 0);
 			if (index == -1) {
 				spin_unlock_irqrestore(&qcb->qos_lock, flags);
 				netdev_err(nic->netdev, "QoS ERROR: No SF\n");
 				return;
 			}
-			qcb->csr[index].qos_buf_count = buf[(i*5) + 10];
+			qcb->csr[index].qos_buf_count = buf[(i * 5) + 10];
 		}
 
 		extract_qos_list(nic, &send_list);
diff --git a/drivers/staging/gdm72xx/gdm_sdio.c b/drivers/staging/gdm72xx/gdm_sdio.c
index 1f5a087..9449418 100644
--- a/drivers/staging/gdm72xx/gdm_sdio.c
+++ b/drivers/staging/gdm72xx/gdm_sdio.c
@@ -33,10 +33,10 @@
 #define SDU_TX_BUF_SIZE	2048
 #define TX_BUF_SIZE	2048
 #define TX_CHUNK_SIZE	(2048 - TYPE_A_HEADER_SIZE)
-#define RX_BUF_SIZE	(25*1024)
+#define RX_BUF_SIZE	(25 * 1024)
 
 #define TX_HZ		2000
-#define TX_INTERVAL	(NSEC_PER_SEC/TX_HZ)
+#define TX_INTERVAL	(NSEC_PER_SEC / TX_HZ)
 
 static struct sdio_tx *alloc_tx_struct(struct tx_cxt *tx)
 {
diff --git a/drivers/staging/gdm72xx/gdm_usb.c b/drivers/staging/gdm72xx/gdm_usb.c
index 7f035b1..f81129d 100644
--- a/drivers/staging/gdm72xx/gdm_usb.c
+++ b/drivers/staging/gdm72xx/gdm_usb.c
@@ -29,7 +29,7 @@ MODULE_DEVICE_TABLE(usb, id_table);
 #define TX_BUF_SIZE		2048
 
 #if defined(CONFIG_WIMAX_GDM72XX_WIMAX2)
-#define RX_BUF_SIZE		(128*1024)	/* For packet aggregation */
+#define RX_BUF_SIZE		(128 * 1024)	/* For packet aggregation */
 #else
 #define RX_BUF_SIZE		2048
 #endif
diff --git a/drivers/staging/gdm72xx/gdm_wimax.c b/drivers/staging/gdm72xx/gdm_wimax.c
index 1b3da2b..2ee6a39 100644
--- a/drivers/staging/gdm72xx/gdm_wimax.c
+++ b/drivers/staging/gdm72xx/gdm_wimax.c
@@ -26,11 +26,11 @@
 #include "netlink_k.h"
 
 #define gdm_wimax_send(n, d, l)	\
-	(n->phy_dev->send_func)(n->phy_dev->priv_dev, d, l, NULL, NULL)
+	n->phy_dev->send_func(n->phy_dev->priv_dev, d, l, NULL, NULL)
 #define gdm_wimax_send_with_cb(n, d, l, c, b)	\
-	(n->phy_dev->send_func)(n->phy_dev->priv_dev, d, l, c, b)
+	n->phy_dev->send_func(n->phy_dev->priv_dev, d, l, c, b)
 #define gdm_wimax_rcv_with_cb(n, c, b)	\
-	(n->phy_dev->rcv_func)(n->phy_dev->priv_dev, c, b)
+	n->phy_dev->rcv_func(n->phy_dev->priv_dev, c, b)
 
 #define EVT_MAX_SIZE	2048
 
@@ -98,21 +98,14 @@ static struct evt_entry *get_event_entry(void)
 	return e;
 }
 
-static void put_event_entry(struct evt_entry *e)
-{
-	BUG_ON(!e);
-
-	list_add_tail(&e->list, &wm_event.freeq);
-}
-
 static void gdm_wimax_event_rcv(struct net_device *dev, u16 type, void *msg,
 				int len)
 {
 	struct nic *nic = netdev_priv(dev);
 
 	u8 *buf = msg;
-	u16 hci_cmd =  (buf[0]<<8) | buf[1];
-	u16 hci_len = (buf[2]<<8) | buf[3];
+	u16 hci_cmd =  (buf[0] << 8) | buf[1];
+	u16 hci_len = (buf[2] << 8) | buf[3];
 
 	netdev_dbg(dev, "H=>D: 0x%04x(%d)\n", hci_cmd, hci_len);
 
@@ -137,7 +130,7 @@ static void __gdm_wimax_event_send(struct work_struct *work)
 
 		spin_lock_irqsave(&wm_event.evt_lock, flags);
 		list_del(&e->list);
-		put_event_entry(e);
+		list_add_tail(&e->list, &wm_event.freeq);
 	}
 
 	spin_unlock_irqrestore(&wm_event.evt_lock, flags);
@@ -193,8 +186,8 @@ static int gdm_wimax_event_send(struct net_device *dev, char *buf, int size)
 	struct evt_entry *e;
 	unsigned long flags;
 
-	u16 hci_cmd =  ((u8)buf[0]<<8) | (u8)buf[1];
-	u16 hci_len = ((u8)buf[2]<<8) | (u8)buf[3];
+	u16 hci_cmd =  ((u8)buf[0] << 8) | (u8)buf[1];
+	u16 hci_len = ((u8)buf[2] << 8) | (u8)buf[3];
 
 	netdev_dbg(dev, "D=>H: 0x%04x(%d)\n", hci_cmd, hci_len);
 
@@ -328,7 +321,8 @@ static void gdm_wimax_ind_if_updown(struct net_device *dev, int if_up)
 	hci->length = cpu_to_be16(sizeof(up_down));
 	hci->data[0] = up_down;
 
-	gdm_wimax_event_send(dev, (char *)hci, HCI_HEADER_SIZE+sizeof(up_down));
+	gdm_wimax_event_send(dev, (char *)hci, HCI_HEADER_SIZE +
+			     sizeof(up_down));
 }
 
 static int gdm_wimax_open(struct net_device *dev)
@@ -512,7 +506,7 @@ static void gdm_wimax_prepare_device(struct net_device *dev)
 	hci->cmd_evt = cpu_to_be16(WIMAX_GET_INFO);
 	hci->data[len++] = TLV_T(T_MAC_ADDRESS);
 	hci->length = cpu_to_be16(len);
-	gdm_wimax_send(nic, hci, HCI_HEADER_SIZE+len);
+	gdm_wimax_send(nic, hci, HCI_HEADER_SIZE + len);
 
 	val = T_CAPABILITY_WIMAX | T_CAPABILITY_MULTI_CS;
 	#if defined(CONFIG_WIMAX_GDM72XX_QOS)
@@ -531,7 +525,7 @@ static void gdm_wimax_prepare_device(struct net_device *dev)
 	memcpy(&hci->data[len], &val_be32, TLV_L(T_CAPABILITY));
 	len += TLV_L(T_CAPABILITY);
 	hci->length = cpu_to_be16(len);
-	gdm_wimax_send(nic, hci, HCI_HEADER_SIZE+len);
+	gdm_wimax_send(nic, hci, HCI_HEADER_SIZE + len);
 
 	netdev_info(dev, "GDM WiMax Set CAPABILITY: 0x%08X\n", val);
 }
@@ -544,10 +538,10 @@ static int gdm_wimax_hci_get_tlv(u8 *buf, u8 *T, u16 *L, u8 **V)
 	*T = buf[0];
 	if (buf[1] == 0x82) {
 		*L = be16_to_cpu(__U82U16(&buf[2]));
-		next_pos = 1/*type*/+3/*len*/;
+		next_pos = 1/*type*/ + 3/*len*/;
 	} else {
 		*L = buf[1];
-		next_pos = 1/*type*/+1/*len*/;
+		next_pos = 1/*type*/ + 1/*len*/;
 	}
 	*V = &buf[next_pos];
 
diff --git a/drivers/staging/gdm72xx/hci.h b/drivers/staging/gdm72xx/hci.h
index ab903d4..b40d5c3 100644
--- a/drivers/staging/gdm72xx/hci.h
+++ b/drivers/staging/gdm72xx/hci.h
@@ -17,7 +17,7 @@
 #define HCI_HEADER_SIZE		4
 #define HCI_VALUE_OFFS		(HCI_HEADER_SIZE)
 #define HCI_MAX_PACKET		2048
-#define HCI_MAX_PARAM		(HCI_MAX_PACKET-HCI_HEADER_SIZE)
+#define HCI_MAX_PARAM		(HCI_MAX_PACKET - HCI_HEADER_SIZE)
 #define HCI_MAX_TLV		32
 
 /* CMD-EVT */
diff --git a/drivers/staging/gdm72xx/netlink_k.c b/drivers/staging/gdm72xx/netlink_k.c
index cf0b47c..783770b 100644
--- a/drivers/staging/gdm72xx/netlink_k.c
+++ b/drivers/staging/gdm72xx/netlink_k.c
@@ -29,8 +29,8 @@
 #define ND_NLMSG_SPACE(len)		(nlmsg_total_size(len) + ND_IFINDEX_LEN)
 #define ND_NLMSG_DATA(nlh) \
 	((void *)((char *)nlmsg_data(nlh) + ND_IFINDEX_LEN))
-#define ND_NLMSG_S_LEN(len)		(len+ND_IFINDEX_LEN)
-#define ND_NLMSG_R_LEN(nlh)		(nlh->nlmsg_len-ND_IFINDEX_LEN)
+#define ND_NLMSG_S_LEN(len)		(len + ND_IFINDEX_LEN)
+#define ND_NLMSG_R_LEN(nlh)		(nlh->nlmsg_len - ND_IFINDEX_LEN)
 #define ND_NLMSG_IFIDX(nlh)		nlmsg_data(nlh)
 #define ND_MAX_MSG_LEN			8096
 
@@ -143,7 +143,7 @@ int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len)
 	NETLINK_CB(skb).portid = 0;
 	NETLINK_CB(skb).dst_group = 0;
 
-	ret = netlink_broadcast(sock, skb, 0, group+1, GFP_ATOMIC);
+	ret = netlink_broadcast(sock, skb, 0, group + 1, GFP_ATOMIC);
 
 	if (!ret)
 		return len;
diff --git a/drivers/staging/gdm72xx/sdio_boot.c b/drivers/staging/gdm72xx/sdio_boot.c
index ba94b5f..5e9b38f 100644
--- a/drivers/staging/gdm72xx/sdio_boot.c
+++ b/drivers/staging/gdm72xx/sdio_boot.c
@@ -96,7 +96,7 @@ static int download_image(struct sdio_func *func, const char *img_name)
 		buf[1] = (len >> 8) & 0xff;
 		buf[2] = (len >> 16) & 0xff;
 
-		memcpy(buf+TYPE_A_HEADER_SIZE, firm->data + pos, len);
+		memcpy(buf + TYPE_A_HEADER_SIZE, firm->data + pos, len);
 		ret = sdio_memcpy_toio(func, 0, buf, len + TYPE_A_HEADER_SIZE);
 		if (ret < 0) {
 			dev_err(&func->dev,
diff --git a/drivers/staging/gdm72xx/usb_boot.c b/drivers/staging/gdm72xx/usb_boot.c
index 3082987..99a5c07 100644
--- a/drivers/staging/gdm72xx/usb_boot.c
+++ b/drivers/staging/gdm72xx/usb_boot.c
@@ -292,8 +292,8 @@ static int em_download_image(struct usb_device *usbdev, const char *img_name,
 		return -ENOMEM;
 	}
 
-	strcpy(buf+pad_size, type_string);
-	ret = gdm_wibro_send(usbdev, buf, strlen(type_string)+pad_size);
+	strcpy(buf + pad_size, type_string);
+	ret = gdm_wibro_send(usbdev, buf, strlen(type_string) + pad_size);
 	if (ret < 0)
 		goto out;
 
@@ -310,8 +310,8 @@ static int em_download_image(struct usb_device *usbdev, const char *img_name,
 		else
 			len = img_len; /* the last chunk of data */
 
-		memcpy(buf+pad_size, firm->data + pos, len);
-		ret = gdm_wibro_send(usbdev, buf, len+pad_size);
+		memcpy(buf + pad_size, firm->data + pos, len);
+		ret = gdm_wibro_send(usbdev, buf, len + pad_size);
 
 		if (ret < 0)
 			goto out;
@@ -319,7 +319,7 @@ static int em_download_image(struct usb_device *usbdev, const char *img_name,
 		img_len -= DOWNLOAD_CHUCK;
 		pos += DOWNLOAD_CHUCK;
 
-		ret = em_wait_ack(usbdev, ((len+pad_size) % 512 == 0));
+		ret = em_wait_ack(usbdev, ((len + pad_size) % 512 == 0));
 		if (ret < 0)
 			goto out;
 	}
diff --git a/drivers/staging/goldfish/goldfish_audio.c b/drivers/staging/goldfish/goldfish_audio.c
index 891dfaa..364fdcd 100644
--- a/drivers/staging/goldfish/goldfish_audio.c
+++ b/drivers/staging/goldfish/goldfish_audio.c
@@ -63,7 +63,7 @@ struct goldfish_audio {
 #define AUDIO_READ(data, addr)		(readl(data->reg_base + addr))
 #define AUDIO_WRITE(data, addr, x)	(writel(x, data->reg_base + addr))
 #define AUDIO_WRITE64(data, addr, addr2, x)	\
-	(gf_write_dma_addr((x), data->reg_base + addr, data->reg_base+addr2))
+	(gf_write_dma_addr((x), data->reg_base + addr, data->reg_base + addr2))
 
 /*
  *  temporary variable used between goldfish_audio_probe() and
diff --git a/drivers/staging/goldfish/goldfish_nand.c b/drivers/staging/goldfish/goldfish_nand.c
index 5c4f61c..76d60ee 100644
--- a/drivers/staging/goldfish/goldfish_nand.c
+++ b/drivers/staging/goldfish/goldfish_nand.c
@@ -27,6 +27,7 @@
 #include <linux/mutex.h>
 #include <linux/goldfish.h>
 #include <asm/div64.h>
+#include <linux/dma-mapping.h>
 
 #include "goldfish_nand_reg.h"
 
@@ -99,11 +100,11 @@ static int goldfish_nand_erase(struct mtd_info *mtd, struct erase_info *instr)
 {
 	loff_t ofs = instr->addr;
 	u32 len = instr->len;
-	u32 rem;
+	s32 rem;
 
 	if (ofs + len > mtd->size)
 		goto invalid_arg;
-	rem = do_div(ofs, mtd->writesize);
+	ofs = div_s64_rem(ofs, mtd->writesize, &rem);
 	if (rem)
 		goto invalid_arg;
 	ofs *= (mtd->writesize + mtd->oobsize);
@@ -132,7 +133,7 @@ invalid_arg:
 static int goldfish_nand_read_oob(struct mtd_info *mtd, loff_t ofs,
 				  struct mtd_oob_ops *ops)
 {
-	u32 rem;
+	s32 rem;
 
 	if (ofs + ops->len > mtd->size)
 		goto invalid_arg;
@@ -141,7 +142,7 @@ static int goldfish_nand_read_oob(struct mtd_info *mtd, loff_t ofs,
 	if (ops->ooblen + ops->ooboffs > mtd->oobsize)
 		goto invalid_arg;
 
-	rem = do_div(ofs, mtd->writesize);
+	ofs = div_s64_rem(ofs, mtd->writesize, &rem);
 	if (rem)
 		goto invalid_arg;
 	ofs *= (mtd->writesize + mtd->oobsize);
@@ -164,7 +165,7 @@ invalid_arg:
 static int goldfish_nand_write_oob(struct mtd_info *mtd, loff_t ofs,
 				   struct mtd_oob_ops *ops)
 {
-	u32 rem;
+	s32 rem;
 
 	if (ofs + ops->len > mtd->size)
 		goto invalid_arg;
@@ -173,7 +174,7 @@ static int goldfish_nand_write_oob(struct mtd_info *mtd, loff_t ofs,
 	if (ops->ooblen + ops->ooboffs > mtd->oobsize)
 		goto invalid_arg;
 
-	rem = do_div(ofs, mtd->writesize);
+	ofs = div_s64_rem(ofs, mtd->writesize, &rem);
 	if (rem)
 		goto invalid_arg;
 	ofs *= (mtd->writesize + mtd->oobsize);
@@ -196,12 +197,12 @@ invalid_arg:
 static int goldfish_nand_read(struct mtd_info *mtd, loff_t from, size_t len,
 			      size_t *retlen, u_char *buf)
 {
-	u32 rem;
+	s32 rem;
 
 	if (from + len > mtd->size)
 		goto invalid_arg;
 
-	rem = do_div(from, mtd->writesize);
+	from = div_s64_rem(from, mtd->writesize, &rem);
 	if (rem)
 		goto invalid_arg;
 	from *= (mtd->writesize + mtd->oobsize);
@@ -218,12 +219,12 @@ invalid_arg:
 static int goldfish_nand_write(struct mtd_info *mtd, loff_t to, size_t len,
 			       size_t *retlen, const u_char *buf)
 {
-	u32 rem;
+	s32 rem;
 
 	if (to + len > mtd->size)
 		goto invalid_arg;
 
-	rem = do_div(to, mtd->writesize);
+	to = div_s64_rem(to, mtd->writesize, &rem);
 	if (rem)
 		goto invalid_arg;
 	to *= (mtd->writesize + mtd->oobsize);
@@ -239,12 +240,12 @@ invalid_arg:
 
 static int goldfish_nand_block_isbad(struct mtd_info *mtd, loff_t ofs)
 {
-	u32 rem;
+	s32 rem;
 
 	if (ofs >= mtd->size)
 		goto invalid_arg;
 
-	rem = do_div(ofs, mtd->erasesize);
+	ofs = div_s64_rem(ofs, mtd->writesize, &rem);
 	if (rem)
 		goto invalid_arg;
 	ofs *= mtd->erasesize / mtd->writesize;
@@ -260,12 +261,12 @@ invalid_arg:
 
 static int goldfish_nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
-	u32 rem;
+	s32 rem;
 
 	if (ofs >= mtd->size)
 		goto invalid_arg;
 
-	rem = do_div(ofs, mtd->erasesize);
+	ofs = div_s64_rem(ofs, mtd->writesize, &rem);
 	if (rem)
 		goto invalid_arg;
 	ofs *= mtd->erasesize / mtd->writesize;
@@ -284,17 +285,18 @@ invalid_arg:
 static int nand_setup_cmd_params(struct platform_device *pdev,
 				 struct goldfish_nand *nand)
 {
-	u64 paddr;
+	dma_addr_t dma_handle;
 	unsigned char __iomem  *base = nand->base;
 
-	nand->cmd_params = devm_kzalloc(&pdev->dev,
-					sizeof(struct cmd_params), GFP_KERNEL);
-	if (!nand->cmd_params)
+	nand->cmd_params = dmam_alloc_coherent(&pdev->dev,
+					       sizeof(struct cmd_params),
+					       &dma_handle, GFP_KERNEL);
+	if (!nand->cmd_params) {
+		dev_err(&pdev->dev, "allocate buffer failed\n");
 		return -ENOMEM;
-
-	paddr = __pa(nand->cmd_params);
-	writel((u32)(paddr >> 32), base + NAND_CMD_PARAMS_ADDR_HIGH);
-	writel((u32)paddr, base + NAND_CMD_PARAMS_ADDR_LOW);
+	}
+	writel((u32)((u64)dma_handle >> 32), base + NAND_CMD_PARAMS_ADDR_HIGH);
+	writel((u32)dma_handle, base + NAND_CMD_PARAMS_ADDR_LOW);
 	return 0;
 }
 
@@ -319,7 +321,7 @@ static int goldfish_nand_init_device(struct platform_device *pdev,
 	mtd->oobavail = mtd->oobsize;
 	mtd->erasesize = readl(base + NAND_DEV_ERASE_SIZE) /
 			(mtd->writesize + mtd->oobsize) * mtd->writesize;
-	do_div(mtd->size, mtd->writesize + mtd->oobsize);
+	mtd->size = div_s64(mtd->size, mtd->writesize + mtd->oobsize);
 	mtd->size *= mtd->writesize;
 	dev_dbg(&pdev->dev,
 		"goldfish nand dev%d: size %llx, page %d, extra %d, erase %d\n",
diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
index 02e930c..a8f533a 100644
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ b/drivers/staging/iio/accel/sca3000_core.c
@@ -216,8 +216,7 @@ static int sca3000_read_ctrl_reg(struct sca3000_state *st,
 	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_CTRL_DATA, 1);
 	if (ret)
 		goto error_ret;
-	else
-		return st->rx[0];
+	return st->rx[0];
 error_ret:
 	return ret;
 }
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
index 1920dc60..d1cb9b9 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -99,8 +99,7 @@ static int sca3000_read_first_n_hw_rb(struct iio_buffer *r,
 	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_BUF_COUNT, 1);
 	if (ret)
 		goto error_ret;
-	else
-		num_available = st->rx[0];
+	num_available = st->rx[0];
 	/*
 	 * num_available is the total number of samples available
 	 * i.e. number of time points * number of channels.
diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c
index 2226051..ac3735c 100644
--- a/drivers/staging/iio/adc/ad7816.c
+++ b/drivers/staging/iio/adc/ad7816.c
@@ -296,14 +296,14 @@ static inline ssize_t ad7816_set_oti(struct device *dev,
 		dev_err(dev, "Invalid oti channel id %d.\n", chip->channel_id);
 		return -EINVAL;
 	} else if (chip->channel_id == 0) {
-		if (ret || value < AD7816_BOUND_VALUE_MIN ||
+		if (value < AD7816_BOUND_VALUE_MIN ||
 		    value > AD7816_BOUND_VALUE_MAX)
 			return -EINVAL;
 
 		data = (u8)(value - AD7816_BOUND_VALUE_MIN +
 			AD7816_BOUND_VALUE_BASE);
 	} else {
-		if (ret || value < AD7816_BOUND_VALUE_BASE || value > 255)
+		if (value < AD7816_BOUND_VALUE_BASE || value > 255)
 			return -EINVAL;
 
 		data = (u8)value;
diff --git a/drivers/staging/iio/light/isl29018.c b/drivers/staging/iio/light/isl29018.c
index 26a5412..76d9f74 100644
--- a/drivers/staging/iio/light/isl29018.c
+++ b/drivers/staging/iio/light/isl29018.c
@@ -183,7 +183,7 @@ static int isl29018_read_sensor_input(struct isl29018_chip *chip, int mode)
 
 	/* Set mode */
 	status = regmap_write(chip->regmap, ISL29018_REG_ADD_COMMAND1,
-			mode << COMMMAND1_OPMODE_SHIFT);
+			      mode << COMMMAND1_OPMODE_SHIFT);
 	if (status) {
 		dev_err(dev,
 			"Error in setting operating mode err %d\n", status);
@@ -241,7 +241,7 @@ static int isl29018_read_ir(struct isl29018_chip *chip, int *ir)
 }
 
 static int isl29018_read_proximity_ir(struct isl29018_chip *chip, int scheme,
-		int *near_ir)
+				      int *near_ir)
 {
 	int status;
 	int prox_data = -1;
@@ -250,15 +250,15 @@ static int isl29018_read_proximity_ir(struct isl29018_chip *chip, int scheme,
 
 	/* Do proximity sensing with required scheme */
 	status = regmap_update_bits(chip->regmap, ISL29018_REG_ADD_COMMANDII,
-			COMMANDII_SCHEME_MASK,
-			scheme << COMMANDII_SCHEME_SHIFT);
+				    COMMANDII_SCHEME_MASK,
+				    scheme << COMMANDII_SCHEME_SHIFT);
 	if (status) {
 		dev_err(dev, "Error in setting operating mode\n");
 		return status;
 	}
 
 	prox_data = isl29018_read_sensor_input(chip,
-					COMMMAND1_OPMODE_PROX_ONCE);
+					       COMMMAND1_OPMODE_PROX_ONCE);
 	if (prox_data < 0)
 		return prox_data;
 
@@ -281,7 +281,7 @@ static int isl29018_read_proximity_ir(struct isl29018_chip *chip, int scheme,
 }
 
 static ssize_t show_scale_available(struct device *dev,
-			struct device_attribute *attr, char *buf)
+				    struct device_attribute *attr, char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct isl29018_chip *chip = iio_priv(indio_dev);
@@ -298,7 +298,7 @@ static ssize_t show_scale_available(struct device *dev,
 }
 
 static ssize_t show_int_time_available(struct device *dev,
-			struct device_attribute *attr, char *buf)
+				       struct device_attribute *attr, char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct isl29018_chip *chip = iio_priv(indio_dev);
@@ -315,18 +315,22 @@ static ssize_t show_int_time_available(struct device *dev,
 
 /* proximity scheme */
 static ssize_t show_prox_infrared_suppression(struct device *dev,
-			struct device_attribute *attr, char *buf)
+					      struct device_attribute *attr,
+					      char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct isl29018_chip *chip = iio_priv(indio_dev);
 
-	/* return the "proximity scheme" i.e. if the chip does on chip
-	infrared suppression (1 means perform on chip suppression) */
+	/*
+	 * return the "proximity scheme" i.e. if the chip does on chip
+	 * infrared suppression (1 means perform on chip suppression)
+	 */
 	return sprintf(buf, "%d\n", chip->prox_scheme);
 }
 
 static ssize_t store_prox_infrared_suppression(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
+					       struct device_attribute *attr,
+					       const char *buf, size_t count)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct isl29018_chip *chip = iio_priv(indio_dev);
@@ -339,8 +343,10 @@ static ssize_t store_prox_infrared_suppression(struct device *dev,
 		return -EINVAL;
 	}
 
-	/* get the  "proximity scheme" i.e. if the chip does on chip
-	infrared suppression (1 means perform on chip suppression) */
+	/*
+	 * get the  "proximity scheme" i.e. if the chip does on chip
+	 * infrared suppression (1 means perform on chip suppression)
+	 */
 	mutex_lock(&chip->lock);
 	chip->prox_scheme = val;
 	mutex_unlock(&chip->lock);
@@ -414,7 +420,8 @@ static int isl29018_read_raw(struct iio_dev *indio_dev,
 			break;
 		case IIO_PROXIMITY:
 			ret = isl29018_read_proximity_ir(chip,
-					chip->prox_scheme, val);
+							 chip->prox_scheme,
+							 val);
 			break;
 		default:
 			break;
@@ -702,13 +709,13 @@ static const char *isl29018_match_acpi_device(struct device *dev, int *data)
 	if (!id)
 		return NULL;
 
-	*data = (int) id->driver_data;
+	*data = (int)id->driver_data;
 
 	return dev_name(dev);
 }
 
 static int isl29018_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
+			  const struct i2c_device_id *id)
 {
 	struct isl29018_chip *chip;
 	struct iio_dev *indio_dev;
diff --git a/drivers/staging/iio/light/isl29028.c b/drivers/staging/iio/light/isl29028.c
index e1bca9c..6e2ba45 100644
--- a/drivers/staging/iio/light/isl29028.c
+++ b/drivers/staging/iio/light/isl29028.c
@@ -81,7 +81,7 @@ struct isl29028_chip {
 };
 
 static int isl29028_set_proxim_sampling(struct isl29028_chip *chip,
-			unsigned int sampling)
+					unsigned int sampling)
 {
 	static unsigned int prox_period[] = {800, 400, 200, 100, 75, 50, 12, 0};
 	int sel;
@@ -103,7 +103,7 @@ static int isl29028_enable_proximity(struct isl29028_chip *chip, bool enable)
 	if (enable)
 		val = CONFIGURE_PROX_EN;
 	ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-			CONFIGURE_PROX_EN_MASK, val);
+				 CONFIGURE_PROX_EN_MASK, val);
 	if (ret < 0)
 		return ret;
 
@@ -122,24 +122,27 @@ static int isl29028_set_als_scale(struct isl29028_chip *chip, int lux_scale)
 }
 
 static int isl29028_set_als_ir_mode(struct isl29028_chip *chip,
-	enum als_ir_mode mode)
+				    enum als_ir_mode mode)
 {
 	int ret = 0;
 
 	switch (mode) {
 	case MODE_ALS:
 		ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-			CONFIGURE_ALS_IR_MODE_MASK, CONFIGURE_ALS_IR_MODE_ALS);
+					 CONFIGURE_ALS_IR_MODE_MASK,
+					 CONFIGURE_ALS_IR_MODE_ALS);
 		if (ret < 0)
 			return ret;
 
 		ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-			CONFIGURE_ALS_RANGE_MASK, CONFIGURE_ALS_RANGE_HIGH_LUX);
+					 CONFIGURE_ALS_RANGE_MASK,
+					 CONFIGURE_ALS_RANGE_HIGH_LUX);
 		break;
 
 	case MODE_IR:
 		ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-			CONFIGURE_ALS_IR_MODE_MASK, CONFIGURE_ALS_IR_MODE_IR);
+					 CONFIGURE_ALS_IR_MODE_MASK,
+					 CONFIGURE_ALS_IR_MODE_IR);
 		break;
 
 	case MODE_NONE:
@@ -152,7 +155,7 @@ static int isl29028_set_als_ir_mode(struct isl29028_chip *chip,
 
 	/* Enable the ALS/IR */
 	ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-			CONFIGURE_ALS_EN_MASK, CONFIGURE_ALS_EN);
+				 CONFIGURE_ALS_EN_MASK, CONFIGURE_ALS_EN);
 	if (ret < 0)
 		return ret;
 
@@ -193,7 +196,7 @@ static int isl29028_read_proxim(struct isl29028_chip *chip, int *prox)
 	ret = regmap_read(chip->regmap, ISL29028_REG_PROX_DATA, &data);
 	if (ret < 0) {
 		dev_err(chip->dev, "Error in reading register %d, error %d\n",
-				ISL29028_REG_PROX_DATA, ret);
+			ISL29028_REG_PROX_DATA, ret);
 		return ret;
 	}
 	*prox = data;
@@ -264,7 +267,8 @@ static int isl29028_ir_get(struct isl29028_chip *chip, int *ir_data)
 
 /* Channel IO */
 static int isl29028_write_raw(struct iio_dev *indio_dev,
-	     struct iio_chan_spec const *chan, int val, int val2, long mask)
+			      struct iio_chan_spec const *chan,
+			      int val, int val2, long mask)
 {
 	struct isl29028_chip *chip = iio_priv(indio_dev);
 	int ret = -EINVAL;
@@ -323,7 +327,8 @@ static int isl29028_write_raw(struct iio_dev *indio_dev,
 }
 
 static int isl29028_read_raw(struct iio_dev *indio_dev,
-	     struct iio_chan_spec const *chan, int *val, int *val2, long mask)
+			     struct iio_chan_spec const *chan,
+			     int *val, int *val2, long mask)
 {
 	struct isl29028_chip *chip = iio_priv(indio_dev);
 	int ret = -EINVAL;
@@ -476,7 +481,7 @@ static const struct regmap_config isl29028_regmap_config = {
 };
 
 static int isl29028_probe(struct i2c_client *client,
-	const struct i2c_device_id *id)
+			  const struct i2c_device_id *id)
 {
 	struct isl29028_chip *chip;
 	struct iio_dev *indio_dev;
diff --git a/drivers/staging/iio/light/tsl2583.c b/drivers/staging/iio/light/tsl2583.c
index 3100d96..05b4ad4 100644
--- a/drivers/staging/iio/light/tsl2583.c
+++ b/drivers/staging/iio/light/tsl2583.c
@@ -240,8 +240,10 @@ static int taos_get_lux(struct iio_dev *indio_dev)
 		}
 	}
 
-	/* clear status, really interrupt status (interrupts are off), but
-	 * we use the bit anyway - don't forget 0x80 - this is a command*/
+	/*
+	 * clear status, really interrupt status (interrupts are off), but
+	 * we use the bit anyway - don't forget 0x80 - this is a command
+	 */
 	ret = i2c_smbus_write_byte(chip->client,
 				   (TSL258X_CMD_REG | TSL258X_CMD_SPL_FN |
 				    TSL258X_CMD_ALS_INT_CLR));
@@ -265,13 +267,14 @@ static int taos_get_lux(struct iio_dev *indio_dev)
 
 	if (!ch0) {
 		/* have no data, so return LAST VALUE */
-		ret = chip->als_cur_info.lux = 0;
+		ret = 0;
+		chip->als_cur_info.lux = 0;
 		goto out_unlock;
 	}
 	/* calculate ratio */
 	ratio = (ch1 << 15) / ch0;
 	/* convert to unscaled lux using the pointer to the table */
-	for (p = (struct taos_lux *) taos_device_lux;
+	for (p = (struct taos_lux *)taos_device_lux;
 	     p->ratio != 0 && p->ratio < ratio; p++)
 		;
 
@@ -290,7 +293,8 @@ static int taos_get_lux(struct iio_dev *indio_dev)
 	/* note: lux is 31 bit max at this point */
 	if (ch1lux > ch0lux) {
 		dev_dbg(&chip->client->dev, "No Data - Return last value\n");
-		ret = chip->als_cur_info.lux = 0;
+		ret = 0;
+		chip->als_cur_info.lux = 0;
 		goto out_unlock;
 	}
 
@@ -378,7 +382,7 @@ static int taos_als_calibrate(struct iio_dev *indio_dev)
 		dev_err(&chip->client->dev, "taos_als_calibrate failed to get lux\n");
 		return lux_val;
 	}
-	gain_trim_val = (unsigned int) (((chip->taos_settings.als_cal_target)
+	gain_trim_val = (unsigned int)(((chip->taos_settings.als_cal_target)
 			* chip->taos_settings.als_gain_trim) / lux_val);
 
 	if ((gain_trim_val < 250) || (gain_trim_val > 4000)) {
@@ -387,9 +391,9 @@ static int taos_als_calibrate(struct iio_dev *indio_dev)
 			gain_trim_val);
 		return -ENODATA;
 	}
-	chip->taos_settings.als_gain_trim = (int) gain_trim_val;
+	chip->taos_settings.als_gain_trim = (int)gain_trim_val;
 
-	return (int) gain_trim_val;
+	return (int)gain_trim_val;
 }
 
 /*
@@ -429,8 +433,10 @@ static int taos_chip_on(struct iio_dev *indio_dev)
 	chip->als_saturation = als_count * 922; /* 90% of full scale */
 	chip->als_time_scale = (als_time + 25) / 50;
 
-	/* TSL258x Specific power-on / adc enable sequence
-	 * Power on the device 1st. */
+	/*
+	 * TSL258x Specific power-on / adc enable sequence
+	 * Power on the device 1st.
+	 */
 	utmp = TSL258X_CNTL_PWR_ON;
 	ret = i2c_smbus_write_byte_data(chip->client,
 					TSL258X_CMD_REG | TSL258X_CNTRL, utmp);
@@ -439,8 +445,10 @@ static int taos_chip_on(struct iio_dev *indio_dev)
 		return ret;
 	}
 
-	/* Use the following shadow copy for our delay before enabling ADC.
-	 * Write all the registers. */
+	/*
+	 * Use the following shadow copy for our delay before enabling ADC.
+	 * Write all the registers.
+	 */
 	for (i = 0, uP = chip->taos_config; i < TSL258X_REG_MAX; i++) {
 		ret = i2c_smbus_write_byte_data(chip->client,
 						TSL258X_CMD_REG + i,
@@ -453,8 +461,10 @@ static int taos_chip_on(struct iio_dev *indio_dev)
 	}
 
 	usleep_range(3000, 3500);
-	/* NOW enable the ADC
-	 * initialize the desired mode of operation */
+	/*
+	 * NOW enable the ADC
+	 * initialize the desired mode of operation
+	 */
 	utmp = TSL258X_CNTL_PWR_ON | TSL258X_CNTL_ADC_ENBL;
 	ret = i2c_smbus_write_byte_data(chip->client,
 					TSL258X_CMD_REG | TSL258X_CNTRL,
@@ -482,7 +492,7 @@ static int taos_chip_off(struct iio_dev *indio_dev)
 /* Sysfs Interface Functions */
 
 static ssize_t taos_power_state_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
+				     struct device_attribute *attr, char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
@@ -491,7 +501,8 @@ static ssize_t taos_power_state_show(struct device *dev,
 }
 
 static ssize_t taos_power_state_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
+				      struct device_attribute *attr,
+				      const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	int value;
@@ -508,7 +519,7 @@ static ssize_t taos_power_state_store(struct device *dev,
 }
 
 static ssize_t taos_gain_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
+			      struct device_attribute *attr, char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
@@ -533,7 +544,8 @@ static ssize_t taos_gain_show(struct device *dev,
 }
 
 static ssize_t taos_gain_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
+			       struct device_attribute *attr,
+			       const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
@@ -564,13 +576,14 @@ static ssize_t taos_gain_store(struct device *dev,
 }
 
 static ssize_t taos_gain_available_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
+					struct device_attribute *attr,
+					char *buf)
 {
 	return sprintf(buf, "%s\n", "1 8 16 111");
 }
 
 static ssize_t taos_als_time_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
+				  struct device_attribute *attr, char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
@@ -579,7 +592,8 @@ static ssize_t taos_als_time_show(struct device *dev,
 }
 
 static ssize_t taos_als_time_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
+				   struct device_attribute *attr,
+				   const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
@@ -600,14 +614,15 @@ static ssize_t taos_als_time_store(struct device *dev,
 }
 
 static ssize_t taos_als_time_available_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
+					    struct device_attribute *attr,
+					    char *buf)
 {
 	return sprintf(buf, "%s\n",
 		"50 100 150 200 250 300 350 400 450 500 550 600 650");
 }
 
 static ssize_t taos_als_trim_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
+				  struct device_attribute *attr, char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
@@ -616,7 +631,8 @@ static ssize_t taos_als_trim_show(struct device *dev,
 }
 
 static ssize_t taos_als_trim_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
+				   struct device_attribute *attr,
+				   const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
@@ -632,7 +648,8 @@ static ssize_t taos_als_trim_store(struct device *dev,
 }
 
 static ssize_t taos_als_cal_target_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
+					struct device_attribute *attr,
+					char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
@@ -641,7 +658,8 @@ static ssize_t taos_als_cal_target_show(struct device *dev,
 }
 
 static ssize_t taos_als_cal_target_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
+					 struct device_attribute *attr,
+					 const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
@@ -657,7 +675,7 @@ static ssize_t taos_als_cal_target_store(struct device *dev,
 }
 
 static ssize_t taos_lux_show(struct device *dev, struct device_attribute *attr,
-	char *buf)
+			     char *buf)
 {
 	int ret;
 
@@ -669,7 +687,8 @@ static ssize_t taos_lux_show(struct device *dev, struct device_attribute *attr,
 }
 
 static ssize_t taos_do_calibrate(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
+				 struct device_attribute *attr,
+				 const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	int value;
@@ -684,7 +703,7 @@ static ssize_t taos_do_calibrate(struct device *dev,
 }
 
 static ssize_t taos_luxtable_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
+				  struct device_attribute *attr, char *buf)
 {
 	int i;
 	int offset = 0;
@@ -695,8 +714,10 @@ static ssize_t taos_luxtable_show(struct device *dev,
 				  taos_device_lux[i].ch0,
 				  taos_device_lux[i].ch1);
 		if (taos_device_lux[i].ratio == 0) {
-			/* We just printed the first "0" entry.
-			 * Now get rid of the extra "," and break. */
+			/*
+			 * We just printed the first "0" entry.
+			 * Now get rid of the extra "," and break.
+			 */
 			offset--;
 			break;
 		}
@@ -707,11 +728,12 @@ static ssize_t taos_luxtable_show(struct device *dev,
 }
 
 static ssize_t taos_luxtable_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
+				   struct device_attribute *attr,
+				   const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	int value[ARRAY_SIZE(taos_device_lux)*3 + 1];
+	int value[ARRAY_SIZE(taos_device_lux) * 3 + 1];
 	int n;
 
 	get_options(buf, ARRAY_SIZE(value), value);
@@ -809,7 +831,7 @@ static int taos_probe(struct i2c_client *clientp,
 	struct iio_dev *indio_dev;
 
 	if (!i2c_check_functionality(clientp->adapter,
-		I2C_FUNC_SMBUS_BYTE_DATA)) {
+				     I2C_FUNC_SMBUS_BYTE_DATA)) {
 		dev_err(&clientp->dev, "taos_probe() - i2c smbus byte data func unsupported\n");
 		return -EOPNOTSUPP;
 	}
@@ -846,7 +868,7 @@ static int taos_probe(struct i2c_client *clientp,
 
 	if (!taos_tsl258x_device(buf)) {
 		dev_info(&clientp->dev,
-			"i2c device found but does not match expected id in taos_probe()\n");
+			 "i2c device found but does not match expected id in taos_probe()\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/staging/iio/resolver/ad2s1200.c b/drivers/staging/iio/resolver/ad2s1200.c
index 595e711..82b2d88 100644
--- a/drivers/staging/iio/resolver/ad2s1200.c
+++ b/drivers/staging/iio/resolver/ad2s1200.c
@@ -31,7 +31,7 @@
 /* input clock on serial interface */
 #define AD2S1200_HZ	8192000
 /* clock period in nano second */
-#define AD2S1200_TSCLK	(1000000000/AD2S1200_HZ)
+#define AD2S1200_TSCLK	(1000000000 / AD2S1200_HZ)
 
 struct ad2s1200_state {
 	struct mutex lock;
@@ -42,10 +42,10 @@ struct ad2s1200_state {
 };
 
 static int ad2s1200_read_raw(struct iio_dev *indio_dev,
-			   struct iio_chan_spec const *chan,
-			   int *val,
-			   int *val2,
-			   long m)
+			     struct iio_chan_spec const *chan,
+			     int *val,
+			     int *val2,
+			     long m)
 {
 	int ret = 0;
 	s16 vel;
@@ -113,7 +113,7 @@ static int ad2s1200_probe(struct spi_device *spi)
 					    DRV_NAME);
 		if (ret) {
 			dev_err(&spi->dev, "request gpio pin %d failed\n",
-							pins[pn]);
+				pins[pn]);
 			return ret;
 		}
 	}
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index d97aa28..6b99263 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -67,7 +67,7 @@
 /* default input clock on serial interface */
 #define AD2S1210_DEF_CLKIN	8192000
 /* clock period in nano second */
-#define AD2S1210_DEF_TCK	(1000000000/AD2S1210_DEF_CLKIN)
+#define AD2S1210_DEF_TCK	(1000000000 / AD2S1210_DEF_CLKIN)
 #define AD2S1210_DEF_EXCIT	10000
 
 enum ad2s1210_mode {
@@ -98,6 +98,7 @@ static const int ad2s1210_mode_vals[4][2] = {
 	[MOD_VEL] = { 0, 1 },
 	[MOD_CONFIG] = { 1, 0 },
 };
+
 static inline void ad2s1210_set_mode(enum ad2s1210_mode mode,
 				     struct ad2s1210_state *st)
 {
@@ -123,7 +124,7 @@ static int ad2s1210_config_write(struct ad2s1210_state *st, u8 data)
 
 /* read value from one of the registers */
 static int ad2s1210_config_read(struct ad2s1210_state *st,
-		       unsigned char address)
+				unsigned char address)
 {
 	struct spi_transfer xfer = {
 		.len = 2,
@@ -176,9 +177,9 @@ static const int ad2s1210_res_pins[4][2] = {
 static inline void ad2s1210_set_resolution_pin(struct ad2s1210_state *st)
 {
 	gpio_set_value(st->pdata->res[0],
-		       ad2s1210_res_pins[(st->resolution - 10)/2][0]);
+		       ad2s1210_res_pins[(st->resolution - 10) / 2][0]);
 	gpio_set_value(st->pdata->res[1],
-		       ad2s1210_res_pins[(st->resolution - 10)/2][1]);
+		       ad2s1210_res_pins[(st->resolution - 10) / 2][1]);
 }
 
 static inline int ad2s1210_soft_reset(struct ad2s1210_state *st)
@@ -282,8 +283,8 @@ static ssize_t ad2s1210_show_control(struct device *dev,
 }
 
 static ssize_t ad2s1210_store_control(struct device *dev,
-			struct device_attribute *attr,
-			const char *buf, size_t len)
+				      struct device_attribute *attr,
+				      const char *buf, size_t len)
 {
 	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
 	unsigned char udata;
@@ -318,9 +319,9 @@ static ssize_t ad2s1210_store_control(struct device *dev,
 		data = ad2s1210_read_resolution_pin(st);
 		if (data != st->resolution)
 			dev_warn(dev, "ad2s1210: resolution settings not match\n");
-	} else
+	} else {
 		ad2s1210_set_resolution_pin(st);
-
+	}
 	ret = len;
 	st->hysteresis = !!(data & AD2S1210_ENABLE_HYSTERESIS);
 
@@ -330,7 +331,8 @@ error_ret:
 }
 
 static ssize_t ad2s1210_show_resolution(struct device *dev,
-			struct device_attribute *attr, char *buf)
+					struct device_attribute *attr,
+					char *buf)
 {
 	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
 
@@ -338,8 +340,8 @@ static ssize_t ad2s1210_show_resolution(struct device *dev,
 }
 
 static ssize_t ad2s1210_store_resolution(struct device *dev,
-			struct device_attribute *attr,
-			const char *buf, size_t len)
+					 struct device_attribute *attr,
+					 const char *buf, size_t len)
 {
 	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
 	unsigned char data;
@@ -379,8 +381,9 @@ static ssize_t ad2s1210_store_resolution(struct device *dev,
 		data = ad2s1210_read_resolution_pin(st);
 		if (data != st->resolution)
 			dev_warn(dev, "ad2s1210: resolution settings not match\n");
-	} else
+	} else {
 		ad2s1210_set_resolution_pin(st);
+	}
 	ret = len;
 error_ret:
 	mutex_unlock(&st->lock);
@@ -389,7 +392,7 @@ error_ret:
 
 /* read the fault register since last sample */
 static ssize_t ad2s1210_show_fault(struct device *dev,
-			struct device_attribute *attr, char *buf)
+				   struct device_attribute *attr, char *buf)
 {
 	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
 	int ret;
@@ -441,7 +444,8 @@ static ssize_t ad2s1210_show_reg(struct device *dev,
 }
 
 static ssize_t ad2s1210_store_reg(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t len)
+				  struct device_attribute *attr,
+				  const char *buf, size_t len)
 {
 	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
 	unsigned char data;
@@ -497,7 +501,7 @@ static int ad2s1210_read_raw(struct iio_dev *indio_dev,
 
 	switch (chan->type) {
 	case IIO_ANGL:
-		pos = be16_to_cpup((__be16 *) st->rx);
+		pos = be16_to_cpup((__be16 *)st->rx);
 		if (st->hysteresis)
 			pos >>= 16 - st->resolution;
 		*val = pos;
@@ -505,7 +509,7 @@ static int ad2s1210_read_raw(struct iio_dev *indio_dev,
 		break;
 	case IIO_ANGL_VEL:
 		negative = st->rx[0] & 0x80;
-		vel = be16_to_cpup((__be16 *) st->rx);
+		vel = be16_to_cpup((__be16 *)st->rx);
 		vel >>= 16 - st->resolution;
 		if (vel & 0x8000) {
 			negative = (0xffff >> st->resolution) << st->resolution;
@@ -560,7 +564,6 @@ static IIO_DEVICE_ATTR(lot_low_thrd, S_IRUGO | S_IWUSR,
 		       ad2s1210_show_reg, ad2s1210_store_reg,
 		       AD2S1210_REG_LOT_LOW_THRD);
 
-
 static const struct iio_chan_spec ad2s1210_channels[] = {
 	{
 		.type = IIO_ANGL,
@@ -672,7 +675,7 @@ static int ad2s1210_probe(struct spi_device *spi)
 	struct ad2s1210_state *st;
 	int ret;
 
-	if (spi->dev.platform_data == NULL)
+	if (!spi->dev.platform_data)
 		return -EINVAL;
 
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h
index dc9b88f..5c598c8 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h
@@ -51,8 +51,6 @@
 #define LERRCHKSUM(hexnum) (((hexnum) & 0xf) ^ ((hexnum) >> 4 & 0xf) ^ \
 			   ((hexnum) >> 8 & 0xf))
 
-#define LUSTRE_SRV_LNET_PID      LUSTRE_LNET_PID
-
 #include <linux/list.h>
 
 /* need both kernel and user-land acceptor */
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h
index 1530b04..9e62c59 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h
@@ -13,11 +13,6 @@
  * General Public License version 2 for more details (a copy is included
  * in the LICENSE file that accompanied this code).
  *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
  * GPL HEADER END
  */
 /*
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h
index e4463ad..f788631 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h
@@ -41,11 +41,16 @@
 #ifndef __LIBCFS_IOCTL_H__
 #define __LIBCFS_IOCTL_H__
 
-#define LIBCFS_IOCTL_VERSION 0x0001000a
+#define LIBCFS_IOCTL_VERSION	0x0001000a
+#define LIBCFS_IOCTL_VERSION2	0x0001000b
 
-struct libcfs_ioctl_data {
+struct libcfs_ioctl_hdr {
 	__u32 ioc_len;
 	__u32 ioc_version;
+};
+
+struct libcfs_ioctl_data {
+	struct libcfs_ioctl_hdr ioc_hdr;
 
 	__u64 ioc_nid;
 	__u64 ioc_u64[1];
@@ -70,11 +75,6 @@ struct libcfs_ioctl_data {
 
 #define ioc_priority ioc_u32[0]
 
-struct libcfs_ioctl_hdr {
-	__u32 ioc_len;
-	__u32 ioc_version;
-};
-
 struct libcfs_debug_ioctl_data {
 	struct libcfs_ioctl_hdr hdr;
 	unsigned int subs;
@@ -90,7 +90,7 @@ do {						    \
 
 struct libcfs_ioctl_handler {
 	struct list_head item;
-	int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_data *data);
+	int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_hdr *hdr);
 };
 
 #define DECLARE_IOCTL_HANDLER(ident, func)		      \
@@ -112,9 +112,6 @@ struct libcfs_ioctl_handler {
 /* lnet ioctls */
 #define IOC_LIBCFS_GET_NI		  _IOWR('e', 50, long)
 #define IOC_LIBCFS_FAIL_NID		_IOWR('e', 51, long)
-#define IOC_LIBCFS_ADD_ROUTE	       _IOWR('e', 52, long)
-#define IOC_LIBCFS_DEL_ROUTE	       _IOWR('e', 53, long)
-#define IOC_LIBCFS_GET_ROUTE	       _IOWR('e', 54, long)
 #define IOC_LIBCFS_NOTIFY_ROUTER	   _IOWR('e', 55, long)
 #define IOC_LIBCFS_UNCONFIGURE	     _IOWR('e', 56, long)
 /*	#define IOC_LIBCFS_PORTALS_COMPATIBILITY   _IOWR('e', 57, long) */
@@ -137,7 +134,25 @@ struct libcfs_ioctl_handler {
 #define IOC_LIBCFS_DEL_INTERFACE	   _IOWR('e', 79, long)
 #define IOC_LIBCFS_GET_INTERFACE	   _IOWR('e', 80, long)
 
-#define IOC_LIBCFS_MAX_NR			     80
+/*
+ * DLC Specific IOCTL numbers.
+ * In order to maintain backward compatibility with any possible external
+ * tools which might be accessing the IOCTL numbers, a new group of IOCTL
+ * number have been allocated.
+ */
+#define IOCTL_CONFIG_SIZE		struct lnet_ioctl_config_data
+#define IOC_LIBCFS_ADD_ROUTE		_IOWR(IOC_LIBCFS_TYPE, 81, IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_DEL_ROUTE		_IOWR(IOC_LIBCFS_TYPE, 82, IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_GET_ROUTE		_IOWR(IOC_LIBCFS_TYPE, 83, IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_ADD_NET		_IOWR(IOC_LIBCFS_TYPE, 84, IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_DEL_NET		_IOWR(IOC_LIBCFS_TYPE, 85, IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_GET_NET		_IOWR(IOC_LIBCFS_TYPE, 86, IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_CONFIG_RTR		_IOWR(IOC_LIBCFS_TYPE, 87, IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_ADD_BUF		_IOWR(IOC_LIBCFS_TYPE, 88, IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_GET_BUF		_IOWR(IOC_LIBCFS_TYPE, 89, IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_GET_PEER_INFO	_IOWR(IOC_LIBCFS_TYPE, 90, IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_GET_LNET_STATS	_IOWR(IOC_LIBCFS_TYPE, 91, IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_MAX_NR		91
 
 static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)
 {
@@ -148,9 +163,9 @@ static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)
 	return len;
 }
 
-static inline int libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
+static inline bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
 {
-	if (data->ioc_len > (1<<30)) {
+	if (data->ioc_hdr.ioc_len > (1 << 30)) {
 		CERROR("LIBCFS ioctl: ioc_len larger than 1<<30\n");
 		return 1;
 	}
@@ -186,7 +201,7 @@ static inline int libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
 		CERROR("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n");
 		return 1;
 	}
-	if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_len) {
+	if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_hdr.ioc_len) {
 		CERROR("LIBCFS ioctl: packlen != ioc_len\n");
 		return 1;
 	}
@@ -206,7 +221,9 @@ static inline int libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
 
 int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand);
 int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand);
-int libcfs_ioctl_getdata(char *buf, char *end, void __user *arg);
+int libcfs_ioctl_getdata_len(const struct libcfs_ioctl_hdr __user *arg,
+			     __u32 *buf_len);
 int libcfs_ioctl_popdata(void __user *arg, void *buf, int size);
+int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data);
 
 #endif /* __LIBCFS_IOCTL_H__ */
diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h
index aac5900..d94b266 100644
--- a/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h
+++ b/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h
@@ -118,9 +118,6 @@ do {								    \
 #define CDEBUG_STACK() (0L)
 #endif /* __x86_64__ */
 
-/* initial pid  */
-#define LUSTRE_LNET_PID	  12345
-
 #define __current_nesting_level() (0)
 
 /**
diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h
index 520209f..c04979a 100644
--- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h
+++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h
@@ -13,11 +13,6 @@
  * General Public License version 2 for more details (a copy is included
  * in the LICENSE file that accompanied this code).
  *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
  * GPL HEADER END
  */
 /*
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-dlc.h b/drivers/staging/lustre/include/linux/lnet/lib-dlc.h
new file mode 100644
index 0000000..84a19e9
--- /dev/null
+++ b/drivers/staging/lustre/include/linux/lnet/lib-dlc.h
@@ -0,0 +1,122 @@
+/*
+ * LGPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.
+ *
+ * LGPL HEADER END
+ *
+ */
+/*
+ * Copyright (c) 2014, Intel Corporation.
+ */
+/*
+ * Author: Amir Shehata <amir.shehata@intel.com>
+ */
+
+#ifndef LNET_DLC_H
+#define LNET_DLC_H
+
+#include "../libcfs/libcfs_ioctl.h"
+#include "types.h"
+
+#define MAX_NUM_SHOW_ENTRIES	32
+#define LNET_MAX_STR_LEN	128
+#define LNET_MAX_SHOW_NUM_CPT	128
+#define LNET_UNDEFINED_HOPS	((__u32) -1)
+
+struct lnet_ioctl_net_config {
+	char ni_interfaces[LNET_MAX_INTERFACES][LNET_MAX_STR_LEN];
+	__u32 ni_status;
+	__u32 ni_cpts[LNET_MAX_SHOW_NUM_CPT];
+};
+
+#define LNET_TINY_BUF_IDX	0
+#define LNET_SMALL_BUF_IDX	1
+#define LNET_LARGE_BUF_IDX	2
+
+/* # different router buffer pools */
+#define LNET_NRBPOOLS		(LNET_LARGE_BUF_IDX + 1)
+
+struct lnet_ioctl_pool_cfg {
+	struct {
+		__u32 pl_npages;
+		__u32 pl_nbuffers;
+		__u32 pl_credits;
+		__u32 pl_mincredits;
+	} pl_pools[LNET_NRBPOOLS];
+	__u32 pl_routing;
+};
+
+struct lnet_ioctl_config_data {
+	struct libcfs_ioctl_hdr cfg_hdr;
+
+	__u32 cfg_net;
+	__u32 cfg_count;
+	__u64 cfg_nid;
+	__u32 cfg_ncpts;
+
+	union {
+		struct {
+			__u32 rtr_hop;
+			__u32 rtr_priority;
+			__u32 rtr_flags;
+		} cfg_route;
+		struct {
+			char net_intf[LNET_MAX_STR_LEN];
+			__s32 net_peer_timeout;
+			__s32 net_peer_tx_credits;
+			__s32 net_peer_rtr_credits;
+			__s32 net_max_tx_credits;
+			__u32 net_cksum_algo;
+			__u32 net_pad;
+		} cfg_net;
+		struct {
+			__u32 buf_enable;
+			__s32 buf_tiny;
+			__s32 buf_small;
+			__s32 buf_large;
+		} cfg_buffers;
+	} cfg_config_u;
+
+	char cfg_bulk[0];
+};
+
+struct lnet_ioctl_peer {
+	struct libcfs_ioctl_hdr pr_hdr;
+	__u32 pr_count;
+	__u32 pr_pad;
+	__u64 pr_nid;
+
+	union {
+		struct {
+			char cr_aliveness[LNET_MAX_STR_LEN];
+			__u32 cr_refcount;
+			__u32 cr_ni_peer_tx_credits;
+			__u32 cr_peer_tx_credits;
+			__u32 cr_peer_rtr_credits;
+			__u32 cr_peer_min_rtr_credits;
+			__u32 cr_peer_tx_qnob;
+			__u32 cr_ncpt;
+		} pr_peer_credits;
+	} pr_lnd_u;
+};
+
+struct lnet_ioctl_lnet_stats {
+	struct libcfs_ioctl_hdr st_hdr;
+	struct lnet_counters st_cntrs;
+};
+
+#endif /* LNET_DLC_H */
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
index b0f80b4..a5f1aec 100644
--- a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
+++ b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
@@ -39,6 +39,7 @@
 #include "api.h"
 #include "lnet.h"
 #include "lib-types.h"
+#include "lib-dlc.h"
 
 extern lnet_t	the_lnet;	/* THE network */
 
@@ -64,6 +65,19 @@ extern lnet_t	the_lnet;	/* THE network */
 /** exclusive lock */
 #define LNET_LOCK_EX		CFS_PERCPT_LOCK_EX
 
+static inline int lnet_is_route_alive(lnet_route_t *route)
+{
+	/* gateway is down */
+	if (!route->lr_gateway->lp_alive)
+		return 0;
+	/* no NI status, assume it's alive */
+	if ((route->lr_gateway->lp_ping_feats &
+	     LNET_PING_FEAT_NI_STATUS) == 0)
+		return 1;
+	/* has NI status, check # down NIs */
+	return route->lr_downis == 0;
+}
+
 static inline int lnet_is_wire_handle_none(lnet_handle_wire_t *wh)
 {
 	return (wh->wh_interface_cookie == LNET_WIRE_HANDLE_COOKIE_NONE &&
@@ -408,6 +422,8 @@ lnet_ni_decref(lnet_ni_t *ni)
 }
 
 void lnet_ni_free(lnet_ni_t *ni);
+lnet_ni_t *
+lnet_ni_alloc(__u32 net, struct cfs_expr_list *el, struct list_head *nilist);
 
 static inline int
 lnet_nid2peerhash(lnet_nid_t nid)
@@ -432,6 +448,8 @@ lnet_ni_t *lnet_nid2ni_locked(lnet_nid_t nid, int cpt);
 lnet_ni_t *lnet_net2ni_locked(__u32 net, int cpt);
 lnet_ni_t *lnet_net2ni(__u32 net);
 
+extern int portal_rotor;
+
 int lnet_init(void);
 void lnet_fini(void);
 
@@ -445,11 +463,26 @@ int lnet_del_route(__u32 net, lnet_nid_t gw_nid);
 void lnet_destroy_routes(void);
 int lnet_get_route(int idx, __u32 *net, __u32 *hops,
 		   lnet_nid_t *gateway, __u32 *alive, __u32 *priority);
+int lnet_get_net_config(int idx, __u32 *cpt_count, __u64 *nid,
+			int *peer_timeout, int *peer_tx_credits,
+			int *peer_rtr_cr, int *max_tx_credits,
+			struct lnet_ioctl_net_config *net_config);
+int lnet_get_rtr_pool_cfg(int idx, struct lnet_ioctl_pool_cfg *pool_cfg);
+
 void lnet_router_debugfs_init(void);
 void lnet_router_debugfs_fini(void);
 int  lnet_rtrpools_alloc(int im_a_router);
-void lnet_rtrpools_free(void);
+void lnet_destroy_rtrbuf(lnet_rtrbuf_t *rb, int npages);
+int lnet_rtrpools_adjust(int tiny, int small, int large);
+int lnet_rtrpools_enable(void);
+void lnet_rtrpools_disable(void);
+void lnet_rtrpools_free(int keep_pools);
 lnet_remotenet_t *lnet_find_net_locked(__u32 net);
+int lnet_dyn_add_ni(lnet_pid_t requested_pid, char *nets,
+		    __s32 peer_timeout, __s32 peer_cr, __s32 peer_buf_cr,
+		    __s32 credits);
+int lnet_dyn_del_ni(__u32 net);
+int lnet_clear_lazy_portal(struct lnet_ni *ni, int portal, char *reason);
 
 int lnet_islocalnid(lnet_nid_t nid);
 int lnet_islocalnet(__u32 net);
@@ -468,6 +501,8 @@ void lnet_prep_send(lnet_msg_t *msg, int type, lnet_process_id_t target,
 int lnet_send(lnet_nid_t nid, lnet_msg_t *msg, lnet_nid_t rtr_nid);
 void lnet_return_tx_credits_locked(lnet_msg_t *msg);
 void lnet_return_rx_credits_locked(lnet_msg_t *msg);
+void lnet_schedule_blocked_locked(lnet_rtrbufpool_t *rbp);
+void lnet_drop_routed_msgs_locked(struct list_head *list, int cpt);
 
 /* portals functions */
 /* portals attributes */
@@ -662,20 +697,24 @@ void lnet_router_checker_stop(void);
 void lnet_router_ni_update_locked(lnet_peer_t *gw, __u32 net);
 void lnet_swap_pinginfo(lnet_ping_info_t *info);
 
-int lnet_ping_target_init(void);
-void lnet_ping_target_fini(void);
-
 int lnet_parse_ip2nets(char **networksp, char *ip2nets);
 int lnet_parse_routes(char *route_str, int *im_a_router);
 int lnet_parse_networks(struct list_head *nilist, char *networks);
+int lnet_net_unique(__u32 net, struct list_head *nilist);
 
 int lnet_nid2peer_locked(lnet_peer_t **lpp, lnet_nid_t nid, int cpt);
 lnet_peer_t *lnet_find_peer_locked(struct lnet_peer_table *ptable,
 				   lnet_nid_t nid);
-void lnet_peer_tables_cleanup(void);
+void lnet_peer_tables_cleanup(lnet_ni_t *ni);
 void lnet_peer_tables_destroy(void);
 int lnet_peer_tables_create(void);
 void lnet_debug_peer(lnet_nid_t nid);
+int lnet_get_peer_info(__u32 peer_index, __u64 *nid,
+		       char alivness[LNET_MAX_STR_LEN],
+		       __u32 *cpt_iter, __u32 *refcount,
+		       __u32 *ni_peer_tx_credits, __u32 *peer_tx_credits,
+		       __u32 *peer_rtr_credits, __u32 *peer_min_rtr_credtis,
+		       __u32 *peer_tx_qnob);
 
 static inline void
 lnet_peer_set_alive(lnet_peer_t *lp)
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-types.h b/drivers/staging/lustre/include/linux/lnet/lib-types.h
index d769c35..07b8db1 100644
--- a/drivers/staging/lustre/include/linux/lnet/lib-types.h
+++ b/drivers/staging/lustre/include/linux/lnet/lib-types.h
@@ -38,7 +38,6 @@
 #include <linux/kthread.h>
 #include <linux/uio.h>
 #include <linux/types.h>
-#include <net/sock.h>
 
 #include "types.h"
 
@@ -285,6 +284,7 @@ typedef struct lnet_ni {
 #define LNET_PING_FEAT_INVAL		(0)		/* no feature */
 #define LNET_PING_FEAT_BASE		(1 << 0)	/* just a ping */
 #define LNET_PING_FEAT_NI_STATUS	(1 << 1)	/* return NI status */
+#define LNET_PING_FEAT_RTE_DISABLED	(1 << 2)	/* Routing enabled */
 
 #define LNET_PING_FEAT_MASK		(LNET_PING_FEAT_BASE | \
 					 LNET_PING_FEAT_NI_STATUS)
@@ -351,6 +351,8 @@ typedef struct lnet_peer {
 struct lnet_peer_table {
 	int			 pt_version;	/* /proc validity stamp */
 	int			 pt_number;	/* # peers extant */
+	/* # zombies to go to deathrow (and not there yet) */
+	int			 pt_zombies;
 	struct list_head	 pt_deathrow;	/* zombie peers */
 	struct list_head	*pt_hash;	/* NID->peer hash */
 };
@@ -394,7 +396,10 @@ typedef struct {
 	struct list_head	rbp_msgs;	/* messages blocking
 						   for a buffer */
 	int			rbp_npages;	/* # pages in each buffer */
-	int			rbp_nbuffers;	/* # buffers */
+	/* requested number of buffers */
+	int			rbp_req_nbuffers;
+	/* # buffers actually allocated */
+	int			rbp_nbuffers;
 	int			rbp_credits;	/* # free buffers /
 						     blocked messages */
 	int			rbp_mincredits;	/* low water mark */
@@ -408,7 +413,12 @@ typedef struct {
 
 #define LNET_PEER_HASHSIZE	503	/* prime! */
 
-#define LNET_NRBPOOLS		3	/* # different router buffer pools */
+#define LNET_TINY_BUF_IDX	0
+#define LNET_SMALL_BUF_IDX	1
+#define LNET_LARGE_BUF_IDX	2
+
+/* # different router buffer pools */
+#define LNET_NRBPOOLS		(LNET_LARGE_BUF_IDX + 1)
 
 enum {
 	/* Didn't match anything */
@@ -569,8 +579,6 @@ typedef struct {
 	/* dying LND instances */
 	struct list_head		  ln_nis_zombie;
 	lnet_ni_t			 *ln_loni;	/* the loopback NI */
-	/* NI to wait for events in */
-	lnet_ni_t			 *ln_eq_waitni;
 
 	/* remote networks with routes to them */
 	struct list_head		 *ln_remote_nets_hash;
@@ -600,8 +608,6 @@ typedef struct {
 
 	struct mutex			  ln_api_mutex;
 	struct mutex			  ln_lnd_mutex;
-	int				  ln_init;	/* lnet_init()
-							   called? */
 	/* Have I called LNetNIInit myself? */
 	int				  ln_niinit_self;
 	/* LNetNIInit/LNetNIFini counter */
@@ -616,12 +622,24 @@ typedef struct {
 	/* registered LNDs */
 	struct list_head		  ln_lnds;
 
-	/* space for network names */
-	char				 *ln_network_tokens;
-	int				  ln_network_tokens_nob;
 	/* test protocol compatibility flags */
 	int				  ln_testprotocompat;
 
+	/*
+	 * 0 - load the NIs from the mod params
+	 * 1 - do not load the NIs from the mod params
+	 * Reverse logic to ensure that other calls to LNetNIInit
+	 * need no change
+	 */
+	bool				  ln_nis_from_mod_params;
+
+	/*
+	 * waitq for router checker.  As long as there are no routes in
+	 * the list, the router checker will sleep on this queue.  when
+	 * routes are added the thread will wake up
+	 */
+	wait_queue_head_t		  ln_rc_waitq;
+
 } lnet_t;
 
 #endif
diff --git a/drivers/staging/lustre/include/linux/lnet/lnetctl.h b/drivers/staging/lustre/include/linux/lnet/lnetctl.h
index bdd69b2..4b64f62 100644
--- a/drivers/staging/lustre/include/linux/lnet/lnetctl.h
+++ b/drivers/staging/lustre/include/linux/lnet/lnetctl.h
@@ -10,10 +10,6 @@
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  * header for lnet ioctl
  */
 #ifndef _LNETCTL_H_
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
index 2e7b5ca..98570b3 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
@@ -339,8 +339,6 @@ int kiblnd_create_peer(lnet_ni_t *ni, kib_peer_t **peerp, lnet_nid_t nid)
 		return -ENOMEM;
 	}
 
-	memset(peer, 0, sizeof(*peer));	 /* zero flags etc */
-
 	peer->ibp_ni = ni;
 	peer->ibp_nid = nid;
 	peer->ibp_error = 0;
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
index 49d716d..854814c 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
@@ -1842,7 +1842,10 @@ ksocknal_query(lnet_ni_t *ni, lnet_nid_t nid, unsigned long *when)
 	unsigned long now = cfs_time_current();
 	ksock_peer_t *peer = NULL;
 	rwlock_t *glock = &ksocknal_data.ksnd_global_lock;
-	lnet_process_id_t id = {.nid = nid, .pid = LUSTRE_SRV_LNET_PID};
+	lnet_process_id_t id = {
+		.nid = nid,
+		.pid = LNET_PID_LUSTRE,
+	};
 
 	read_lock(glock);
 
@@ -2187,7 +2190,7 @@ ksocknal_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg)
 
 	case IOC_LIBCFS_ADD_PEER:
 		id.nid = data->ioc_nid;
-		id.pid = LUSTRE_SRV_LNET_PID;
+		id.pid = LNET_PID_LUSTRE;
 		return ksocknal_add_peer(ni, id,
 					  data->ioc_u32[0], /* IP */
 					  data->ioc_u32[1]); /* port */
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
index a4117ad..a176544 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
@@ -19,10 +19,6 @@
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  */
 
 #ifndef _SOCKLND_SOCKLND_H_
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
index 02da02d..efb7169 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
@@ -19,9 +19,6 @@
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include "socklnd.h"
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c
index 77ce597..6329cbe 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c
@@ -14,9 +14,6 @@
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include "socklnd.h"
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c
index 70910ed..976a072 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c
@@ -19,9 +19,6 @@
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include "socklnd.h"
diff --git a/drivers/staging/lustre/lnet/lnet/acceptor.c b/drivers/staging/lustre/lnet/lnet/acceptor.c
index e5f24ff..1452bb3 100644
--- a/drivers/staging/lustre/lnet/lnet/acceptor.c
+++ b/drivers/staging/lustre/lnet/lnet/acceptor.c
@@ -36,6 +36,7 @@
 
 #define DEBUG_SUBSYSTEM S_LNET
 #include <linux/completion.h>
+#include <net/sock.h>
 #include "../../include/linux/lnet/lib-lnet.h"
 
 static int   accept_port    = 988;
@@ -46,7 +47,9 @@ static struct {
 	int			pta_shutdown;
 	struct socket		*pta_sock;
 	struct completion	pta_signal;
-} lnet_acceptor_state;
+} lnet_acceptor_state = {
+	.pta_shutdown = 1
+};
 
 int
 lnet_acceptor_port(void)
@@ -204,8 +207,6 @@ lnet_connect(struct socket **sockp, lnet_nid_t peer_nid,
 }
 EXPORT_SYMBOL(lnet_connect);
 
-/* Below is the code common for both kernel and MT user-space */
-
 static int
 lnet_accept(struct socket *sock, __u32 magic)
 {
@@ -439,10 +440,15 @@ accept2secure(const char *acc, long *sec)
 int
 lnet_acceptor_start(void)
 {
+	struct task_struct *task;
 	int rc;
 	long rc2;
 	long secure;
 
+	/* if acceptor is already running return immediately */
+	if (!lnet_acceptor_state.pta_shutdown)
+		return 0;
+
 	LASSERT(!lnet_acceptor_state.pta_sock);
 
 	rc = lnet_acceptor_get_tunables();
@@ -457,10 +463,10 @@ lnet_acceptor_start(void)
 	if (!lnet_count_acceptor_nis())  /* not required */
 		return 0;
 
-	rc2 = PTR_ERR(kthread_run(lnet_acceptor,
-				  (void *)(ulong_ptr_t)secure,
-				  "acceptor_%03ld", secure));
-	if (IS_ERR_VALUE(rc2)) {
+	task = kthread_run(lnet_acceptor, (void *)(ulong_ptr_t)secure,
+			   "acceptor_%03ld", secure);
+	if (IS_ERR(task)) {
+		rc2 = PTR_ERR(task);
 		CERROR("Can't start acceptor thread: %ld\n", rc2);
 
 		return -ESRCH;
@@ -483,11 +489,17 @@ lnet_acceptor_start(void)
 void
 lnet_acceptor_stop(void)
 {
-	if (!lnet_acceptor_state.pta_sock) /* not running */
+	struct sock *sk;
+
+	if (lnet_acceptor_state.pta_shutdown) /* not running */
 		return;
 
 	lnet_acceptor_state.pta_shutdown = 1;
-	wake_up_all(sk_sleep(lnet_acceptor_state.pta_sock->sk));
+
+	sk = lnet_acceptor_state.pta_sock->sk;
+
+	/* awake any sleepers using safe method */
+	sk->sk_state_change(sk);
 
 	/* block until acceptor signals exit */
 	wait_for_completion(&lnet_acceptor_state.pta_signal);
diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c
index 58b30f1..3ecc96a 100644
--- a/drivers/staging/lustre/lnet/lnet/api-ni.c
+++ b/drivers/staging/lustre/lnet/lnet/api-ni.c
@@ -39,6 +39,7 @@
 #include <linux/ktime.h>
 
 #include "../../include/linux/lnet/lib-lnet.h"
+#include "../../include/linux/lnet/lib-dlc.h"
 
 #define D_LNI D_CONSOLE
 
@@ -97,6 +98,7 @@ lnet_init_locks(void)
 {
 	spin_lock_init(&the_lnet.ln_eq_wait_lock);
 	init_waitqueue_head(&the_lnet.ln_eq_waitq);
+	init_waitqueue_head(&the_lnet.ln_rc_waitq);
 	mutex_init(&the_lnet.ln_lnd_mutex);
 	mutex_init(&the_lnet.ln_api_mutex);
 }
@@ -289,7 +291,6 @@ lnet_register_lnd(lnd_t *lnd)
 {
 	mutex_lock(&the_lnet.ln_lnd_mutex);
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(libcfs_isknown_lnd(lnd->lnd_type));
 	LASSERT(!lnet_find_lnd_by_type(lnd->lnd_type));
 
@@ -307,7 +308,6 @@ lnet_unregister_lnd(lnd_t *lnd)
 {
 	mutex_lock(&the_lnet.ln_lnd_mutex);
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(lnet_find_lnd_by_type(lnd->lnd_type) == lnd);
 	LASSERT(!lnd->lnd_refcount);
 
@@ -524,7 +524,7 @@ lnet_res_lh_initialize(struct lnet_res_container *rec, lnet_libhandle_t *lh)
 	list_add(&lh->lh_hash_chain, &rec->rec_lh_hash[hash]);
 }
 
-int lnet_unprepare(void);
+static int lnet_unprepare(void);
 
 static int
 lnet_prepare(lnet_pid_t requested_pid)
@@ -533,6 +533,11 @@ lnet_prepare(lnet_pid_t requested_pid)
 	struct lnet_res_container **recs;
 	int rc = 0;
 
+	if (requested_pid == LNET_PID_ANY) {
+		/* Don't instantiate LNET just for me */
+		return -ENETDOWN;
+	}
+
 	LASSERT(!the_lnet.ln_refcount);
 
 	the_lnet.ln_routing = 0;
@@ -605,7 +610,7 @@ lnet_prepare(lnet_pid_t requested_pid)
 	return rc;
 }
 
-int
+static int
 lnet_unprepare(void)
 {
 	/*
@@ -638,7 +643,7 @@ lnet_unprepare(void)
 
 	lnet_msg_containers_destroy();
 	lnet_peer_tables_destroy();
-	lnet_rtrpools_free();
+	lnet_rtrpools_free(0);
 
 	if (the_lnet.ln_counters) {
 		cfs_percpt_free(the_lnet.ln_counters);
@@ -819,82 +824,267 @@ lnet_count_acceptor_nis(void)
 	return count;
 }
 
-static int
-lnet_ni_tq_credits(lnet_ni_t *ni)
+static lnet_ping_info_t *
+lnet_ping_info_create(int num_ni)
 {
-	int credits;
+	lnet_ping_info_t *ping_info;
+	unsigned int infosz;
 
-	LASSERT(ni->ni_ncpts >= 1);
+	infosz = offsetof(lnet_ping_info_t, pi_ni[num_ni]);
+	LIBCFS_ALLOC(ping_info, infosz);
+	if (!ping_info) {
+		CERROR("Can't allocate ping info[%d]\n", num_ni);
+		return NULL;
+	}
 
-	if (ni->ni_ncpts == 1)
-		return ni->ni_maxtxcredits;
+	ping_info->pi_nnis = num_ni;
+	ping_info->pi_pid = the_lnet.ln_pid;
+	ping_info->pi_magic = LNET_PROTO_PING_MAGIC;
+	ping_info->pi_features = LNET_PING_FEAT_NI_STATUS;
 
-	credits = ni->ni_maxtxcredits / ni->ni_ncpts;
-	credits = max(credits, 8 * ni->ni_peertxcredits);
-	credits = min(credits, ni->ni_maxtxcredits);
+	return ping_info;
+}
 
-	return credits;
+static inline int
+lnet_get_ni_count(void)
+{
+	struct lnet_ni *ni;
+	int count = 0;
+
+	lnet_net_lock(0);
+
+	list_for_each_entry(ni, &the_lnet.ln_nis, ni_list)
+		count++;
+
+	lnet_net_unlock(0);
+
+	return count;
+}
+
+static inline void
+lnet_ping_info_free(lnet_ping_info_t *pinfo)
+{
+	LIBCFS_FREE(pinfo,
+		    offsetof(lnet_ping_info_t,
+			     pi_ni[pinfo->pi_nnis]));
 }
 
 static void
-lnet_shutdown_lndnis(void)
+lnet_ping_info_destroy(void)
 {
-	int i;
-	int islo;
-	lnet_ni_t *ni;
+	struct lnet_ni *ni;
 
-	/* NB called holding the global mutex */
+	lnet_net_lock(LNET_LOCK_EX);
 
-	/* All quiet on the API front */
-	LASSERT(!the_lnet.ln_shutdown);
-	LASSERT(!the_lnet.ln_refcount);
-	LASSERT(list_empty(&the_lnet.ln_nis_zombie));
+	list_for_each_entry(ni, &the_lnet.ln_nis, ni_list) {
+		lnet_ni_lock(ni);
+		ni->ni_status = NULL;
+		lnet_ni_unlock(ni);
+	}
 
-	lnet_net_lock(LNET_LOCK_EX);
-	the_lnet.ln_shutdown = 1;	/* flag shutdown */
+	lnet_ping_info_free(the_lnet.ln_ping_info);
+	the_lnet.ln_ping_info = NULL;
 
-	/* Unlink NIs from the global table */
-	while (!list_empty(&the_lnet.ln_nis)) {
-		ni = list_entry(the_lnet.ln_nis.next,
-				lnet_ni_t, ni_list);
-		/* move it to zombie list and nobody can find it anymore */
-		list_move(&ni->ni_list, &the_lnet.ln_nis_zombie);
-		lnet_ni_decref_locked(ni, 0);	/* drop ln_nis' ref */
+	lnet_net_unlock(LNET_LOCK_EX);
+}
 
-		if (!list_empty(&ni->ni_cptlist)) {
-			list_del_init(&ni->ni_cptlist);
-			lnet_ni_decref_locked(ni, 0);
+static void
+lnet_ping_event_handler(lnet_event_t *event)
+{
+	lnet_ping_info_t *pinfo = event->md.user_ptr;
+
+	if (event->unlinked)
+		pinfo->pi_features = LNET_PING_FEAT_INVAL;
+}
+
+static int
+lnet_ping_info_setup(lnet_ping_info_t **ppinfo, lnet_handle_md_t *md_handle,
+		     int ni_count, bool set_eq)
+{
+	lnet_process_id_t id = {LNET_NID_ANY, LNET_PID_ANY};
+	lnet_handle_me_t me_handle;
+	lnet_md_t md = { NULL };
+	int rc, rc2;
+
+	if (set_eq) {
+		rc = LNetEQAlloc(0, lnet_ping_event_handler,
+				 &the_lnet.ln_ping_target_eq);
+		if (rc) {
+			CERROR("Can't allocate ping EQ: %d\n", rc);
+			return rc;
 		}
 	}
 
-	/* Drop the cached eqwait NI. */
-	if (the_lnet.ln_eq_waitni) {
-		lnet_ni_decref_locked(the_lnet.ln_eq_waitni, 0);
-		the_lnet.ln_eq_waitni = NULL;
+	*ppinfo = lnet_ping_info_create(ni_count);
+	if (!*ppinfo) {
+		rc = -ENOMEM;
+		goto failed_0;
 	}
 
-	/* Drop the cached loopback NI. */
-	if (the_lnet.ln_loni) {
-		lnet_ni_decref_locked(the_lnet.ln_loni, 0);
-		the_lnet.ln_loni = NULL;
+	rc = LNetMEAttach(LNET_RESERVED_PORTAL, id,
+			  LNET_PROTO_PING_MATCHBITS, 0,
+			  LNET_UNLINK, LNET_INS_AFTER,
+			  &me_handle);
+	if (rc) {
+		CERROR("Can't create ping ME: %d\n", rc);
+		goto failed_1;
 	}
 
-	lnet_net_unlock(LNET_LOCK_EX);
+	/* initialize md content */
+	md.start = *ppinfo;
+	md.length = offsetof(lnet_ping_info_t,
+			     pi_ni[(*ppinfo)->pi_nnis]);
+	md.threshold = LNET_MD_THRESH_INF;
+	md.max_size = 0;
+	md.options = LNET_MD_OP_GET | LNET_MD_TRUNCATE |
+		     LNET_MD_MANAGE_REMOTE;
+	md.user_ptr  = NULL;
+	md.eq_handle = the_lnet.ln_ping_target_eq;
+	md.user_ptr = *ppinfo;
 
-	/*
-	 * Clear lazy portals and drop delayed messages which hold refs
-	 * on their lnet_msg_t::msg_rxpeer
-	 */
-	for (i = 0; i < the_lnet.ln_nportals; i++)
-		LNetClearLazyPortal(i);
+	rc = LNetMDAttach(me_handle, md, LNET_RETAIN, md_handle);
+	if (rc) {
+		CERROR("Can't attach ping MD: %d\n", rc);
+		goto failed_2;
+	}
 
-	/*
-	 * Clear the peer table and wait for all peers to go (they hold refs on
-	 * their NIs)
-	 */
-	lnet_peer_tables_cleanup();
+	return 0;
 
+failed_2:
+	rc2 = LNetMEUnlink(me_handle);
+	LASSERT(!rc2);
+failed_1:
+	lnet_ping_info_free(*ppinfo);
+	*ppinfo = NULL;
+failed_0:
+	if (set_eq)
+		LNetEQFree(the_lnet.ln_ping_target_eq);
+	return rc;
+}
+
+static void
+lnet_ping_md_unlink(lnet_ping_info_t *pinfo, lnet_handle_md_t *md_handle)
+{
+	sigset_t blocked = cfs_block_allsigs();
+
+	LNetMDUnlink(*md_handle);
+	LNetInvalidateHandle(md_handle);
+
+	/* NB md could be busy; this just starts the unlink */
+	while (pinfo->pi_features != LNET_PING_FEAT_INVAL) {
+		CDEBUG(D_NET, "Still waiting for ping MD to unlink\n");
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(cfs_time_seconds(1));
+	}
+
+	cfs_restore_sigs(blocked);
+}
+
+static void
+lnet_ping_info_install_locked(lnet_ping_info_t *ping_info)
+{
+	lnet_ni_status_t *ns;
+	lnet_ni_t *ni;
+	int i = 0;
+
+	list_for_each_entry(ni, &the_lnet.ln_nis, ni_list) {
+		LASSERT(i < ping_info->pi_nnis);
+
+		ns = &ping_info->pi_ni[i];
+
+		ns->ns_nid = ni->ni_nid;
+
+		lnet_ni_lock(ni);
+		ns->ns_status = (ni->ni_status) ?
+				 ni->ni_status->ns_status : LNET_NI_STATUS_UP;
+		ni->ni_status = ns;
+		lnet_ni_unlock(ni);
+
+		i++;
+	}
+}
+
+static void
+lnet_ping_target_update(lnet_ping_info_t *pinfo, lnet_handle_md_t md_handle)
+{
+	lnet_ping_info_t *old_pinfo = NULL;
+	lnet_handle_md_t old_md;
+
+	/* switch the NIs to point to the new ping info created */
 	lnet_net_lock(LNET_LOCK_EX);
+
+	if (!the_lnet.ln_routing)
+		pinfo->pi_features |= LNET_PING_FEAT_RTE_DISABLED;
+	lnet_ping_info_install_locked(pinfo);
+
+	if (the_lnet.ln_ping_info) {
+		old_pinfo = the_lnet.ln_ping_info;
+		old_md = the_lnet.ln_ping_target_md;
+	}
+	the_lnet.ln_ping_target_md = md_handle;
+	the_lnet.ln_ping_info = pinfo;
+
+	lnet_net_unlock(LNET_LOCK_EX);
+
+	if (old_pinfo) {
+		/* unlink the old ping info */
+		lnet_ping_md_unlink(old_pinfo, &old_md);
+		lnet_ping_info_free(old_pinfo);
+	}
+}
+
+static void
+lnet_ping_target_fini(void)
+{
+	int rc;
+
+	lnet_ping_md_unlink(the_lnet.ln_ping_info,
+			    &the_lnet.ln_ping_target_md);
+
+	rc = LNetEQFree(the_lnet.ln_ping_target_eq);
+	LASSERT(!rc);
+
+	lnet_ping_info_destroy();
+}
+
+static int
+lnet_ni_tq_credits(lnet_ni_t *ni)
+{
+	int credits;
+
+	LASSERT(ni->ni_ncpts >= 1);
+
+	if (ni->ni_ncpts == 1)
+		return ni->ni_maxtxcredits;
+
+	credits = ni->ni_maxtxcredits / ni->ni_ncpts;
+	credits = max(credits, 8 * ni->ni_peertxcredits);
+	credits = min(credits, ni->ni_maxtxcredits);
+
+	return credits;
+}
+
+static void
+lnet_ni_unlink_locked(lnet_ni_t *ni)
+{
+	if (!list_empty(&ni->ni_cptlist)) {
+		list_del_init(&ni->ni_cptlist);
+		lnet_ni_decref_locked(ni, 0);
+	}
+
+	/* move it to zombie list and nobody can find it anymore */
+	LASSERT(!list_empty(&ni->ni_list));
+	list_move(&ni->ni_list, &the_lnet.ln_nis_zombie);
+	lnet_ni_decref_locked(ni, 0);	/* drop ln_nis' ref */
+}
+
+static void
+lnet_clear_zombies_nis_locked(void)
+{
+	int i;
+	int islo;
+	lnet_ni_t *ni;
+
 	/*
 	 * Now wait for the NI's I just nuked to show up on ln_zombie_nis
 	 * and shut them down in guaranteed thread context
@@ -949,165 +1139,255 @@ lnet_shutdown_lndnis(void)
 
 		lnet_net_lock(LNET_LOCK_EX);
 	}
+}
+
+static void
+lnet_shutdown_lndnis(void)
+{
+	lnet_ni_t *ni;
+	int i;
+
+	/* NB called holding the global mutex */
+
+	/* All quiet on the API front */
+	LASSERT(!the_lnet.ln_shutdown);
+	LASSERT(!the_lnet.ln_refcount);
+	LASSERT(list_empty(&the_lnet.ln_nis_zombie));
+
+	lnet_net_lock(LNET_LOCK_EX);
+	the_lnet.ln_shutdown = 1;	/* flag shutdown */
+
+	/* Unlink NIs from the global table */
+	while (!list_empty(&the_lnet.ln_nis)) {
+		ni = list_entry(the_lnet.ln_nis.next,
+				lnet_ni_t, ni_list);
+		lnet_ni_unlink_locked(ni);
+	}
+
+	/* Drop the cached loopback NI. */
+	if (the_lnet.ln_loni) {
+		lnet_ni_decref_locked(the_lnet.ln_loni, 0);
+		the_lnet.ln_loni = NULL;
+	}
+
+	lnet_net_unlock(LNET_LOCK_EX);
+
+	/*
+	 * Clear lazy portals and drop delayed messages which hold refs
+	 * on their lnet_msg_t::msg_rxpeer
+	 */
+	for (i = 0; i < the_lnet.ln_nportals; i++)
+		LNetClearLazyPortal(i);
 
+	/*
+	 * Clear the peer table and wait for all peers to go (they hold refs on
+	 * their NIs)
+	 */
+	lnet_peer_tables_cleanup(NULL);
+
+	lnet_net_lock(LNET_LOCK_EX);
+
+	lnet_clear_zombies_nis_locked();
 	the_lnet.ln_shutdown = 0;
 	lnet_net_unlock(LNET_LOCK_EX);
+}
 
-	if (the_lnet.ln_network_tokens) {
-		LIBCFS_FREE(the_lnet.ln_network_tokens,
-			    the_lnet.ln_network_tokens_nob);
-		the_lnet.ln_network_tokens = NULL;
-	}
+/* shutdown down the NI and release refcount */
+static void
+lnet_shutdown_lndni(struct lnet_ni *ni)
+{
+	int i;
+
+	lnet_net_lock(LNET_LOCK_EX);
+	lnet_ni_unlink_locked(ni);
+	lnet_net_unlock(LNET_LOCK_EX);
+
+	/* clear messages for this NI on the lazy portal */
+	for (i = 0; i < the_lnet.ln_nportals; i++)
+		lnet_clear_lazy_portal(ni, i, "Shutting down NI");
+
+	/* Do peer table cleanup for this ni */
+	lnet_peer_tables_cleanup(ni);
+
+	lnet_net_lock(LNET_LOCK_EX);
+	lnet_clear_zombies_nis_locked();
+	lnet_net_unlock(LNET_LOCK_EX);
 }
 
 static int
-lnet_startup_lndnis(void)
+lnet_startup_lndni(struct lnet_ni *ni, __s32 peer_timeout,
+		   __s32 peer_cr, __s32 peer_buf_cr, __s32 credits)
 {
+	int rc = -EINVAL;
+	int lnd_type;
 	lnd_t *lnd;
-	struct lnet_ni *ni;
 	struct lnet_tx_queue *tq;
-	struct list_head nilist;
 	int i;
-	int rc = 0;
-	__u32 lnd_type;
-	int nicount = 0;
-	char *nets = lnet_get_networks();
 
-	INIT_LIST_HEAD(&nilist);
+	lnd_type = LNET_NETTYP(LNET_NIDNET(ni->ni_nid));
 
-	if (!nets)
-		goto failed;
+	LASSERT(libcfs_isknown_lnd(lnd_type));
 
-	rc = lnet_parse_networks(&nilist, nets);
-	if (rc)
-		goto failed;
+	if (lnd_type == CIBLND || lnd_type == OPENIBLND ||
+	    lnd_type == IIBLND || lnd_type == VIBLND) {
+		CERROR("LND %s obsoleted\n", libcfs_lnd2str(lnd_type));
+		goto failed0;
+	}
 
-	while (!list_empty(&nilist)) {
-		ni = list_entry(nilist.next, lnet_ni_t, ni_list);
-		lnd_type = LNET_NETTYP(LNET_NIDNET(ni->ni_nid));
+	/* Make sure this new NI is unique. */
+	lnet_net_lock(LNET_LOCK_EX);
+	rc = lnet_net_unique(LNET_NIDNET(ni->ni_nid), &the_lnet.ln_nis);
+	lnet_net_unlock(LNET_LOCK_EX);
+	if (!rc) {
+		if (lnd_type == LOLND) {
+			lnet_ni_free(ni);
+			return 0;
+		}
 
-		LASSERT(libcfs_isknown_lnd(lnd_type));
+		CERROR("Net %s is not unique\n",
+		       libcfs_net2str(LNET_NIDNET(ni->ni_nid)));
+		rc = -EEXIST;
+		goto failed0;
+	}
 
-		if (lnd_type == CIBLND    ||
-		    lnd_type == OPENIBLND ||
-		    lnd_type == IIBLND    ||
-		    lnd_type == VIBLND) {
-			CERROR("LND %s obsoleted\n",
-			       libcfs_lnd2str(lnd_type));
-			goto failed;
-		}
+	mutex_lock(&the_lnet.ln_lnd_mutex);
+	lnd = lnet_find_lnd_by_type(lnd_type);
 
+	if (!lnd) {
+		mutex_unlock(&the_lnet.ln_lnd_mutex);
+		rc = request_module("%s", libcfs_lnd2modname(lnd_type));
 		mutex_lock(&the_lnet.ln_lnd_mutex);
-		lnd = lnet_find_lnd_by_type(lnd_type);
 
+		lnd = lnet_find_lnd_by_type(lnd_type);
 		if (!lnd) {
 			mutex_unlock(&the_lnet.ln_lnd_mutex);
-			rc = request_module("%s",
-					    libcfs_lnd2modname(lnd_type));
-			mutex_lock(&the_lnet.ln_lnd_mutex);
-
-			lnd = lnet_find_lnd_by_type(lnd_type);
-			if (!lnd) {
-				mutex_unlock(&the_lnet.ln_lnd_mutex);
-				CERROR("Can't load LND %s, module %s, rc=%d\n",
-				       libcfs_lnd2str(lnd_type),
-				       libcfs_lnd2modname(lnd_type), rc);
-				goto failed;
-			}
+			CERROR("Can't load LND %s, module %s, rc=%d\n",
+			       libcfs_lnd2str(lnd_type),
+			       libcfs_lnd2modname(lnd_type), rc);
+			rc = -EINVAL;
+			goto failed0;
 		}
+	}
 
-		lnet_net_lock(LNET_LOCK_EX);
-		lnd->lnd_refcount++;
-		lnet_net_unlock(LNET_LOCK_EX);
-
-		ni->ni_lnd = lnd;
-
-		rc = lnd->lnd_startup(ni);
-
-		mutex_unlock(&the_lnet.ln_lnd_mutex);
+	lnet_net_lock(LNET_LOCK_EX);
+	lnd->lnd_refcount++;
+	lnet_net_unlock(LNET_LOCK_EX);
 
-		if (rc) {
-			LCONSOLE_ERROR_MSG(0x105, "Error %d starting up LNI %s\n",
-					   rc, libcfs_lnd2str(lnd->lnd_type));
-			lnet_net_lock(LNET_LOCK_EX);
-			lnd->lnd_refcount--;
-			lnet_net_unlock(LNET_LOCK_EX);
-			goto failed;
-		}
+	ni->ni_lnd = lnd;
 
-		LASSERT(ni->ni_peertimeout <= 0 || lnd->lnd_query);
+	rc = lnd->lnd_startup(ni);
 
-		list_del(&ni->ni_list);
+	mutex_unlock(&the_lnet.ln_lnd_mutex);
 
+	if (rc) {
+		LCONSOLE_ERROR_MSG(0x105, "Error %d starting up LNI %s\n",
+				   rc, libcfs_lnd2str(lnd->lnd_type));
 		lnet_net_lock(LNET_LOCK_EX);
-		/* refcount for ln_nis */
-		lnet_ni_addref_locked(ni, 0);
-		list_add_tail(&ni->ni_list, &the_lnet.ln_nis);
-		if (ni->ni_cpts) {
-			list_add_tail(&ni->ni_cptlist,
-				      &the_lnet.ln_nis_cpt);
-			lnet_ni_addref_locked(ni, 0);
-		}
-
+		lnd->lnd_refcount--;
 		lnet_net_unlock(LNET_LOCK_EX);
+		goto failed0;
+	}
 
-		if (lnd->lnd_type == LOLND) {
-			lnet_ni_addref(ni);
-			LASSERT(!the_lnet.ln_loni);
-			the_lnet.ln_loni = ni;
-			continue;
-		}
+	/*
+	 * If given some LND tunable parameters, parse those now to
+	 * override the values in the NI structure.
+	 */
+	if (peer_buf_cr >= 0)
+		ni->ni_peerrtrcredits = peer_buf_cr;
+	if (peer_timeout >= 0)
+		ni->ni_peertimeout = peer_timeout;
+	/*
+	 * TODO
+	 * Note: For now, don't allow the user to change
+	 * peertxcredits as this number is used in the
+	 * IB LND to control queue depth.
+	 * if (peer_cr != -1)
+	 *	ni->ni_peertxcredits = peer_cr;
+	 */
+	if (credits >= 0)
+		ni->ni_maxtxcredits = credits;
 
-		if (!ni->ni_peertxcredits || !ni->ni_maxtxcredits) {
-			LCONSOLE_ERROR_MSG(0x107, "LNI %s has no %scredits\n",
-					   libcfs_lnd2str(lnd->lnd_type),
-					   !ni->ni_peertxcredits ?
-					   "" : "per-peer ");
-			goto failed;
-		}
+	LASSERT(ni->ni_peertimeout <= 0 || lnd->lnd_query);
 
-		cfs_percpt_for_each(tq, i, ni->ni_tx_queues) {
-			tq->tq_credits_min =
-			tq->tq_credits_max =
-			tq->tq_credits = lnet_ni_tq_credits(ni);
-		}
+	lnet_net_lock(LNET_LOCK_EX);
+	/* refcount for ln_nis */
+	lnet_ni_addref_locked(ni, 0);
+	list_add_tail(&ni->ni_list, &the_lnet.ln_nis);
+	if (ni->ni_cpts) {
+		lnet_ni_addref_locked(ni, 0);
+		list_add_tail(&ni->ni_cptlist, &the_lnet.ln_nis_cpt);
+	}
 
-		CDEBUG(D_LNI, "Added LNI %s [%d/%d/%d/%d]\n",
-		       libcfs_nid2str(ni->ni_nid), ni->ni_peertxcredits,
-		       lnet_ni_tq_credits(ni) * LNET_CPT_NUMBER,
-		       ni->ni_peerrtrcredits, ni->ni_peertimeout);
+	lnet_net_unlock(LNET_LOCK_EX);
 
-		nicount++;
+	if (lnd->lnd_type == LOLND) {
+		lnet_ni_addref(ni);
+		LASSERT(!the_lnet.ln_loni);
+		the_lnet.ln_loni = ni;
+		return 0;
 	}
 
-	if (the_lnet.ln_eq_waitni && nicount > 1) {
-		lnd_type = the_lnet.ln_eq_waitni->ni_lnd->lnd_type;
-		LCONSOLE_ERROR_MSG(0x109, "LND %s can only run single-network\n",
-				   libcfs_lnd2str(lnd_type));
-		goto failed;
+	if (!ni->ni_peertxcredits || !ni->ni_maxtxcredits) {
+		LCONSOLE_ERROR_MSG(0x107, "LNI %s has no %scredits\n",
+				   libcfs_lnd2str(lnd->lnd_type),
+				   !ni->ni_peertxcredits ?
+				   "" : "per-peer ");
+		/*
+		 * shutdown the NI since if we get here then it must've already
+		 * been started
+		 */
+                lnet_shutdown_lndni(ni);
+                return -EINVAL;
+	}
+
+	cfs_percpt_for_each(tq, i, ni->ni_tx_queues) {
+		tq->tq_credits_min =
+		tq->tq_credits_max =
+		tq->tq_credits = lnet_ni_tq_credits(ni);
 	}
 
+	CDEBUG(D_LNI, "Added LNI %s [%d/%d/%d/%d]\n",
+	       libcfs_nid2str(ni->ni_nid), ni->ni_peertxcredits,
+	       lnet_ni_tq_credits(ni) * LNET_CPT_NUMBER,
+	       ni->ni_peerrtrcredits, ni->ni_peertimeout);
+
 	return 0;
+failed0:
+	lnet_ni_free(ni);
+	return rc;
+}
 
- failed:
-	lnet_shutdown_lndnis();
+static int
+lnet_startup_lndnis(struct list_head *nilist)
+{
+	struct lnet_ni *ni;
+	int rc;
+	int ni_count = 0;
 
-	while (!list_empty(&nilist)) {
-		ni = list_entry(nilist.next, lnet_ni_t, ni_list);
+	while (!list_empty(nilist)) {
+		ni = list_entry(nilist->next, lnet_ni_t, ni_list);
 		list_del(&ni->ni_list);
-		lnet_ni_free(ni);
+		rc = lnet_startup_lndni(ni, -1, -1, -1, -1);
+
+		if (rc < 0)
+			goto failed;
+
+		ni_count++;
 	}
 
-	return -ENETDOWN;
+	return ni_count;
+failed:
+	lnet_shutdown_lndnis();
+
+	return rc;
 }
 
 /**
  * Initialize LNet library.
  *
- * Only userspace program needs to call this function - it's automatically
- * called in the kernel at module loading time. Caller has to call lnet_fini()
- * after a call to lnet_init(), if and only if the latter returned 0. It must
- * be called exactly once.
+ * Automatically called at module loading time. Caller has to call
+ * lnet_exit() after a call to lnet_init(), if and only if the
+ * latter returned 0. It must be called exactly once.
  *
  * \return 0 on success, and -ve on failures.
  */
@@ -1117,7 +1397,6 @@ lnet_init(void)
 	int rc;
 
 	lnet_assert_wire_constants();
-	LASSERT(!the_lnet.ln_init);
 
 	memset(&the_lnet, 0, sizeof(the_lnet));
 
@@ -1143,7 +1422,6 @@ lnet_init(void)
 	}
 
 	the_lnet.ln_refcount = 0;
-	the_lnet.ln_init = 1;
 	LNetInvalidateHandle(&the_lnet.ln_rc_eqh);
 	INIT_LIST_HEAD(&the_lnet.ln_lnds);
 	INIT_LIST_HEAD(&the_lnet.ln_rcd_zombie);
@@ -1173,30 +1451,23 @@ lnet_init(void)
 /**
  * Finalize LNet library.
  *
- * Only userspace program needs to call this function. It can be called
- * at most once.
- *
  * \pre lnet_init() called with success.
  * \pre All LNet users called LNetNIFini() for matching LNetNIInit() calls.
  */
 void
 lnet_fini(void)
 {
-	LASSERT(the_lnet.ln_init);
 	LASSERT(!the_lnet.ln_refcount);
 
 	while (!list_empty(&the_lnet.ln_lnds))
 		lnet_unregister_lnd(list_entry(the_lnet.ln_lnds.next,
 					       lnd_t, lnd_list));
 	lnet_destroy_locks();
-
-	the_lnet.ln_init = 0;
 }
 
 /**
  * Set LNet PID and start LNet interfaces, routing, and forwarding.
  *
- * Userspace program should call this after a successful call to lnet_init().
  * Users must call this function at least once before any other functions.
  * For each successful call there must be a corresponding call to
  * LNetNIFini(). For subsequent calls to LNetNIInit(), \a requested_pid is
@@ -1214,79 +1485,113 @@ LNetNIInit(lnet_pid_t requested_pid)
 {
 	int im_a_router = 0;
 	int rc;
+	int ni_count;
+	lnet_ping_info_t *pinfo;
+	lnet_handle_md_t md_handle;
+	struct list_head net_head;
+
+	INIT_LIST_HEAD(&net_head);
 
 	mutex_lock(&the_lnet.ln_api_mutex);
 
-	LASSERT(the_lnet.ln_init);
 	CDEBUG(D_OTHER, "refs %d\n", the_lnet.ln_refcount);
 
 	if (the_lnet.ln_refcount > 0) {
 		rc = the_lnet.ln_refcount++;
-		goto out;
+		mutex_unlock(&the_lnet.ln_api_mutex);
+		return rc;
 	}
 
-	if (requested_pid == LNET_PID_ANY) {
-		/* Don't instantiate LNET just for me */
-		rc = -ENETDOWN;
-		goto failed0;
+	rc = lnet_prepare(requested_pid);
+	if (rc) {
+		mutex_unlock(&the_lnet.ln_api_mutex);
+		return rc;
 	}
 
-	rc = lnet_prepare(requested_pid);
-	if (rc)
-		goto failed0;
+	/* Add in the loopback network */
+	if (!lnet_ni_alloc(LNET_MKNET(LOLND, 0), NULL, &net_head)) {
+		rc = -ENOMEM;
+		goto err_empty_list;
+	}
 
-	rc = lnet_startup_lndnis();
-	if (rc)
-		goto failed1;
+	/*
+	 * If LNet is being initialized via DLC it is possible
+	 * that the user requests not to load module parameters (ones which
+	 * are supported by DLC) on initialization.  Therefore, make sure not
+	 * to load networks, routes and forwarding from module parameters
+	 * in this case. On cleanup in case of failure only clean up
+	 * routes if it has been loaded
+	 */
+	if (!the_lnet.ln_nis_from_mod_params) {
+		rc = lnet_parse_networks(&net_head, lnet_get_networks());
+		if (rc < 0)
+			goto err_empty_list;
+	}
 
-	rc = lnet_parse_routes(lnet_get_routes(), &im_a_router);
-	if (rc)
-		goto failed2;
+	ni_count = lnet_startup_lndnis(&net_head);
+	if (ni_count < 0) {
+		rc = ni_count;
+		goto err_empty_list;
+	}
 
-	rc = lnet_check_routes();
-	if (rc)
-		goto failed2;
+	if (!the_lnet.ln_nis_from_mod_params) {
+		rc = lnet_parse_routes(lnet_get_routes(), &im_a_router);
+		if (rc)
+			goto err_shutdown_lndnis;
 
-	rc = lnet_rtrpools_alloc(im_a_router);
-	if (rc)
-		goto failed2;
+		rc = lnet_check_routes();
+		if (rc)
+			goto err_destory_routes;
+
+		rc = lnet_rtrpools_alloc(im_a_router);
+		if (rc)
+			goto err_destory_routes;
+	}
 
 	rc = lnet_acceptor_start();
 	if (rc)
-		goto failed2;
+		goto err_destory_routes;
 
 	the_lnet.ln_refcount = 1;
 	/* Now I may use my own API functions... */
 
-	/*
-	 * NB router checker needs the_lnet.ln_ping_info in
-	 * lnet_router_checker -> lnet_update_ni_status_locked
-	  */
-	rc = lnet_ping_target_init();
+	rc = lnet_ping_info_setup(&pinfo, &md_handle, ni_count, true);
 	if (rc)
-		goto failed3;
+		goto err_acceptor_stop;
+
+	lnet_ping_target_update(pinfo, md_handle);
 
 	rc = lnet_router_checker_start();
 	if (rc)
-		goto failed4;
+		goto err_stop_ping;
 
 	lnet_router_debugfs_init();
-	goto out;
 
- failed4:
+	mutex_unlock(&the_lnet.ln_api_mutex);
+
+	return 0;
+
+err_stop_ping:
 	lnet_ping_target_fini();
- failed3:
+err_acceptor_stop:
 	the_lnet.ln_refcount = 0;
 	lnet_acceptor_stop();
- failed2:
-	lnet_destroy_routes();
+err_destory_routes:
+	if (!the_lnet.ln_nis_from_mod_params)
+		lnet_destroy_routes();
+err_shutdown_lndnis:
 	lnet_shutdown_lndnis();
- failed1:
+err_empty_list:
 	lnet_unprepare();
- failed0:
 	LASSERT(rc < 0);
- out:
 	mutex_unlock(&the_lnet.ln_api_mutex);
+	while (!list_empty(&net_head)) {
+		struct lnet_ni *ni;
+
+		ni = list_entry(net_head.next, struct lnet_ni, ni_list);
+		list_del_init(&ni->ni_list);
+		lnet_ni_free(ni);
+	}
 	return rc;
 }
 EXPORT_SYMBOL(LNetNIInit);
@@ -1305,7 +1610,6 @@ LNetNIFini(void)
 {
 	mutex_lock(&the_lnet.ln_api_mutex);
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	if (the_lnet.ln_refcount != 1) {
@@ -1332,6 +1636,220 @@ LNetNIFini(void)
 EXPORT_SYMBOL(LNetNIFini);
 
 /**
+ * Grabs the ni data from the ni structure and fills the out
+ * parameters
+ *
+ * \param[in] ni network       interface structure
+ * \param[out] cpt_count       the number of cpts the ni is on
+ * \param[out] nid             Network Interface ID
+ * \param[out] peer_timeout    NI peer timeout
+ * \param[out] peer_tx_crdits  NI peer transmit credits
+ * \param[out] peer_rtr_credits NI peer router credits
+ * \param[out] max_tx_credits  NI max transmit credit
+ * \param[out] net_config      Network configuration
+ */
+static void
+lnet_fill_ni_info(struct lnet_ni *ni, __u32 *cpt_count, __u64 *nid,
+		  int *peer_timeout, int *peer_tx_credits,
+		  int *peer_rtr_credits, int *max_tx_credits,
+		  struct lnet_ioctl_net_config *net_config)
+{
+	int i;
+
+	if (!ni)
+		return;
+
+	if (!net_config)
+		return;
+
+	BUILD_BUG_ON(ARRAY_SIZE(ni->ni_interfaces) !=
+		     ARRAY_SIZE(net_config->ni_interfaces));
+
+	for (i = 0; i < ARRAY_SIZE(ni->ni_interfaces); i++) {
+		if (!ni->ni_interfaces[i])
+			break;
+
+		strncpy(net_config->ni_interfaces[i],
+			ni->ni_interfaces[i],
+			sizeof(net_config->ni_interfaces[i]));
+	}
+
+	*nid = ni->ni_nid;
+	*peer_timeout = ni->ni_peertimeout;
+	*peer_tx_credits = ni->ni_peertxcredits;
+	*peer_rtr_credits = ni->ni_peerrtrcredits;
+	*max_tx_credits = ni->ni_maxtxcredits;
+
+	net_config->ni_status = ni->ni_status->ns_status;
+
+	if (ni->ni_cpts) {
+		int num_cpts = min(ni->ni_ncpts, LNET_MAX_SHOW_NUM_CPT);
+
+		for (i = 0; i < num_cpts; i++)
+			net_config->ni_cpts[i] = ni->ni_cpts[i];
+
+		*cpt_count = num_cpts;
+	}
+}
+
+int
+lnet_get_net_config(int idx, __u32 *cpt_count, __u64 *nid, int *peer_timeout,
+		    int *peer_tx_credits, int *peer_rtr_credits,
+		    int *max_tx_credits,
+		    struct lnet_ioctl_net_config *net_config)
+{
+	struct lnet_ni *ni;
+	struct list_head *tmp;
+	int cpt, i = 0;
+	int rc = -ENOENT;
+
+	cpt = lnet_net_lock_current();
+
+	list_for_each(tmp, &the_lnet.ln_nis) {
+		if (i++ != idx)
+			continue;
+
+		ni = list_entry(tmp, lnet_ni_t, ni_list);
+		lnet_ni_lock(ni);
+		lnet_fill_ni_info(ni, cpt_count, nid, peer_timeout,
+				  peer_tx_credits, peer_rtr_credits,
+				  max_tx_credits, net_config);
+		lnet_ni_unlock(ni);
+		rc = 0;
+		break;
+	}
+
+	lnet_net_unlock(cpt);
+	return rc;
+}
+
+int
+lnet_dyn_add_ni(lnet_pid_t requested_pid, char *nets,
+		__s32 peer_timeout, __s32 peer_cr, __s32 peer_buf_cr,
+		__s32 credits)
+{
+	lnet_ping_info_t *pinfo;
+	lnet_handle_md_t md_handle;
+	struct lnet_ni *ni;
+	struct list_head net_head;
+	lnet_remotenet_t *rnet;
+	int rc;
+
+	INIT_LIST_HEAD(&net_head);
+
+	/* Create a ni structure for the network string */
+	rc = lnet_parse_networks(&net_head, nets);
+	if (rc <= 0)
+		return !rc ? -EINVAL : rc;
+
+	mutex_lock(&the_lnet.ln_api_mutex);
+
+	if (rc > 1) {
+		rc = -EINVAL; /* only add one interface per call */
+		goto failed0;
+	}
+
+	ni = list_entry(net_head.next, struct lnet_ni, ni_list);
+
+	lnet_net_lock(LNET_LOCK_EX);
+	rnet = lnet_find_net_locked(LNET_NIDNET(ni->ni_nid));
+	lnet_net_unlock(LNET_LOCK_EX);
+	/*
+	 * make sure that the net added doesn't invalidate the current
+	 * configuration LNet is keeping
+	 */
+	if (rnet) {
+		CERROR("Adding net %s will invalidate routing configuration\n",
+		       nets);
+		rc = -EUSERS;
+		goto failed0;
+	}
+
+	rc = lnet_ping_info_setup(&pinfo, &md_handle, 1 + lnet_get_ni_count(),
+				  false);
+	if (rc)
+		goto failed0;
+
+	list_del_init(&ni->ni_list);
+
+	rc = lnet_startup_lndni(ni, peer_timeout, peer_cr,
+				peer_buf_cr, credits);
+	if (rc)
+		goto failed1;
+
+	if (ni->ni_lnd->lnd_accept) {
+		rc = lnet_acceptor_start();
+		if (rc < 0) {
+			/* shutdown the ni that we just started */
+			CERROR("Failed to start up acceptor thread\n");
+			lnet_shutdown_lndni(ni);
+			goto failed1;
+		}
+	}
+
+	lnet_ping_target_update(pinfo, md_handle);
+	mutex_unlock(&the_lnet.ln_api_mutex);
+
+	return 0;
+
+failed1:
+	lnet_ping_md_unlink(pinfo, &md_handle);
+	lnet_ping_info_free(pinfo);
+failed0:
+	mutex_unlock(&the_lnet.ln_api_mutex);
+	while (!list_empty(&net_head)) {
+		ni = list_entry(net_head.next, struct lnet_ni, ni_list);
+		list_del_init(&ni->ni_list);
+		lnet_ni_free(ni);
+	}
+	return rc;
+}
+
+int
+lnet_dyn_del_ni(__u32 net)
+{
+	lnet_ni_t *ni;
+	lnet_ping_info_t *pinfo;
+	lnet_handle_md_t md_handle;
+	int rc;
+
+	/* don't allow userspace to shutdown the LOLND */
+	if (LNET_NETTYP(net) == LOLND)
+		return -EINVAL;
+
+	mutex_lock(&the_lnet.ln_api_mutex);
+	/* create and link a new ping info, before removing the old one */
+	rc = lnet_ping_info_setup(&pinfo, &md_handle,
+				  lnet_get_ni_count() - 1, false);
+	if (rc)
+		goto out;
+
+	ni = lnet_net2ni(net);
+	if (!ni) {
+		rc = -EINVAL;
+		goto failed;
+	}
+
+	/* decrement the reference counter taken by lnet_net2ni() */
+	lnet_ni_decref_locked(ni, 0);
+
+	lnet_shutdown_lndni(ni);
+
+	if (!lnet_count_acceptor_nis())
+		lnet_acceptor_stop();
+
+	lnet_ping_target_update(pinfo, md_handle);
+	goto out;
+failed:
+	lnet_ping_md_unlink(pinfo, &md_handle);
+	lnet_ping_info_free(pinfo);
+out:
+	mutex_unlock(&the_lnet.ln_api_mutex);
+
+	return rc;
+}
+
+/**
  * LNet ioctl handler.
  *
  */
@@ -1339,14 +1857,12 @@ int
 LNetCtl(unsigned int cmd, void *arg)
 {
 	struct libcfs_ioctl_data *data = arg;
+	struct lnet_ioctl_config_data *config;
 	lnet_process_id_t id = {0};
 	lnet_ni_t *ni;
 	int rc;
 	unsigned long secs_passed;
 
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
 	switch (cmd) {
 	case IOC_LIBCFS_GET_NI:
 		rc = LNetGetId(data->ioc_count, &id);
@@ -1357,18 +1873,143 @@ LNetCtl(unsigned int cmd, void *arg)
 		return lnet_fail_nid(data->ioc_nid, data->ioc_count);
 
 	case IOC_LIBCFS_ADD_ROUTE:
-		rc = lnet_add_route(data->ioc_net, data->ioc_count,
-				    data->ioc_nid, data->ioc_priority);
-		return (rc) ? rc : lnet_check_routes();
+		config = arg;
+
+		if (config->cfg_hdr.ioc_len < sizeof(*config))
+			return -EINVAL;
+
+		mutex_lock(&the_lnet.ln_api_mutex);
+		rc = lnet_add_route(config->cfg_net,
+				    config->cfg_config_u.cfg_route.rtr_hop,
+				    config->cfg_nid,
+				    config->cfg_config_u.cfg_route.rtr_priority);
+		if (!rc) {
+			rc = lnet_check_routes();
+			if (rc)
+				lnet_del_route(config->cfg_net,
+					       config->cfg_nid);
+		}
+		mutex_unlock(&the_lnet.ln_api_mutex);
+		return rc;
 
 	case IOC_LIBCFS_DEL_ROUTE:
-		return lnet_del_route(data->ioc_net, data->ioc_nid);
+		config = arg;
+
+		if (config->cfg_hdr.ioc_len < sizeof(*config))
+			return -EINVAL;
+
+		mutex_lock(&the_lnet.ln_api_mutex);
+		rc = lnet_del_route(config->cfg_net, config->cfg_nid);
+		mutex_unlock(&the_lnet.ln_api_mutex);
+		return rc;
 
 	case IOC_LIBCFS_GET_ROUTE:
-		return lnet_get_route(data->ioc_count,
-				      &data->ioc_net, &data->ioc_count,
-				      &data->ioc_nid, &data->ioc_flags,
-				      &data->ioc_priority);
+		config = arg;
+
+		if (config->cfg_hdr.ioc_len < sizeof(*config))
+			return -EINVAL;
+
+		return lnet_get_route(config->cfg_count,
+				      &config->cfg_net,
+				      &config->cfg_config_u.cfg_route.rtr_hop,
+				      &config->cfg_nid,
+				      &config->cfg_config_u.cfg_route.rtr_flags,
+				      &config->cfg_config_u.cfg_route.rtr_priority);
+
+	case IOC_LIBCFS_GET_NET: {
+		struct lnet_ioctl_net_config *net_config;
+		size_t total = sizeof(*config) + sizeof(*net_config);
+
+		config = arg;
+
+		if (config->cfg_hdr.ioc_len < total)
+			return -EINVAL;
+
+		net_config = (struct lnet_ioctl_net_config *)
+				config->cfg_bulk;
+		if (!net_config)
+			return -EINVAL;
+
+		return lnet_get_net_config(config->cfg_count,
+					   &config->cfg_ncpts,
+					   &config->cfg_nid,
+					   &config->cfg_config_u.cfg_net.net_peer_timeout,
+					   &config->cfg_config_u.cfg_net.net_peer_tx_credits,
+					   &config->cfg_config_u.cfg_net.net_peer_rtr_credits,
+					   &config->cfg_config_u.cfg_net.net_max_tx_credits,
+					   net_config);
+	}
+
+	case IOC_LIBCFS_GET_LNET_STATS: {
+		struct lnet_ioctl_lnet_stats *lnet_stats = arg;
+
+		if (lnet_stats->st_hdr.ioc_len < sizeof(*lnet_stats))
+			return -EINVAL;
+
+		lnet_counters_get(&lnet_stats->st_cntrs);
+		return 0;
+	}
+
+	case IOC_LIBCFS_CONFIG_RTR:
+		config = arg;
+
+		if (config->cfg_hdr.ioc_len < sizeof(*config))
+			return -EINVAL;
+
+		mutex_lock(&the_lnet.ln_api_mutex);
+		if (config->cfg_config_u.cfg_buffers.buf_enable) {
+			rc = lnet_rtrpools_enable();
+			mutex_unlock(&the_lnet.ln_api_mutex);
+			return rc;
+		}
+		lnet_rtrpools_disable();
+		mutex_unlock(&the_lnet.ln_api_mutex);
+		return 0;
+
+	case IOC_LIBCFS_ADD_BUF:
+		config = arg;
+
+		if (config->cfg_hdr.ioc_len < sizeof(*config))
+			return -EINVAL;
+
+		mutex_lock(&the_lnet.ln_api_mutex);
+		rc = lnet_rtrpools_adjust(config->cfg_config_u.cfg_buffers.buf_tiny,
+					  config->cfg_config_u.cfg_buffers.buf_small,
+					  config->cfg_config_u.cfg_buffers.buf_large);
+		mutex_unlock(&the_lnet.ln_api_mutex);
+		return rc;
+
+	case IOC_LIBCFS_GET_BUF: {
+		struct lnet_ioctl_pool_cfg *pool_cfg;
+		size_t total = sizeof(*config) + sizeof(*pool_cfg);
+
+		config = arg;
+
+		if (config->cfg_hdr.ioc_len < total)
+			return -EINVAL;
+
+		pool_cfg = (struct lnet_ioctl_pool_cfg *)config->cfg_bulk;
+		return lnet_get_rtr_pool_cfg(config->cfg_count, pool_cfg);
+	}
+
+	case IOC_LIBCFS_GET_PEER_INFO: {
+		struct lnet_ioctl_peer *peer_info = arg;
+
+		if (peer_info->pr_hdr.ioc_len < sizeof(*peer_info))
+			return -EINVAL;
+
+		return lnet_get_peer_info(peer_info->pr_count,
+			&peer_info->pr_nid,
+			peer_info->pr_lnd_u.pr_peer_credits.cr_aliveness,
+			&peer_info->pr_lnd_u.pr_peer_credits.cr_ncpt,
+			&peer_info->pr_lnd_u.pr_peer_credits.cr_refcount,
+			&peer_info->pr_lnd_u.pr_peer_credits.cr_ni_peer_tx_credits,
+			&peer_info->pr_lnd_u.pr_peer_credits.cr_peer_tx_credits,
+			&peer_info->pr_lnd_u.pr_peer_credits.cr_peer_rtr_credits,
+			&peer_info->pr_lnd_u.pr_peer_credits.cr_peer_min_rtr_credits,
+			&peer_info->pr_lnd_u.pr_peer_credits.cr_peer_tx_qnob);
+	}
+
 	case IOC_LIBCFS_NOTIFY_ROUTER:
 		secs_passed = (ktime_get_real_seconds() - data->ioc_u64[0]);
 		return lnet_notify(NULL, data->ioc_nid, data->ioc_flags,
@@ -1441,8 +2082,6 @@ LNetGetId(unsigned int index, lnet_process_id_t *id)
 	int cpt;
 	int rc = -ENOENT;
 
-	LASSERT(the_lnet.ln_init);
-
 	/* LNetNI initilization failed? */
 	if (!the_lnet.ln_refcount)
 		return rc;
@@ -1477,192 +2116,6 @@ LNetSnprintHandle(char *str, int len, lnet_handle_any_t h)
 }
 EXPORT_SYMBOL(LNetSnprintHandle);
 
-static int
-lnet_create_ping_info(void)
-{
-	int i;
-	int n;
-	int rc;
-	unsigned int infosz;
-	lnet_ni_t *ni;
-	lnet_process_id_t id;
-	lnet_ping_info_t *pinfo;
-
-	for (n = 0; ; n++) {
-		rc = LNetGetId(n, &id);
-		if (rc == -ENOENT)
-			break;
-
-		LASSERT(!rc);
-	}
-
-	infosz = offsetof(lnet_ping_info_t, pi_ni[n]);
-	LIBCFS_ALLOC(pinfo, infosz);
-	if (!pinfo) {
-		CERROR("Can't allocate ping info[%d]\n", n);
-		return -ENOMEM;
-	}
-
-	pinfo->pi_nnis    = n;
-	pinfo->pi_pid     = the_lnet.ln_pid;
-	pinfo->pi_magic   = LNET_PROTO_PING_MAGIC;
-	pinfo->pi_features = LNET_PING_FEAT_NI_STATUS;
-
-	for (i = 0; i < n; i++) {
-		lnet_ni_status_t *ns = &pinfo->pi_ni[i];
-
-		rc = LNetGetId(i, &id);
-		LASSERT(!rc);
-
-		ns->ns_nid    = id.nid;
-		ns->ns_status = LNET_NI_STATUS_UP;
-
-		lnet_net_lock(0);
-
-		ni = lnet_nid2ni_locked(id.nid, 0);
-		LASSERT(ni);
-
-		lnet_ni_lock(ni);
-		LASSERT(!ni->ni_status);
-		ni->ni_status = ns;
-		lnet_ni_unlock(ni);
-
-		lnet_ni_decref_locked(ni, 0);
-		lnet_net_unlock(0);
-	}
-
-	the_lnet.ln_ping_info = pinfo;
-	return 0;
-}
-
-static void
-lnet_destroy_ping_info(void)
-{
-	struct lnet_ni *ni;
-
-	lnet_net_lock(0);
-
-	list_for_each_entry(ni, &the_lnet.ln_nis, ni_list) {
-		lnet_ni_lock(ni);
-		ni->ni_status = NULL;
-		lnet_ni_unlock(ni);
-	}
-
-	lnet_net_unlock(0);
-
-	LIBCFS_FREE(the_lnet.ln_ping_info,
-		    offsetof(lnet_ping_info_t,
-			     pi_ni[the_lnet.ln_ping_info->pi_nnis]));
-	the_lnet.ln_ping_info = NULL;
-}
-
-int
-lnet_ping_target_init(void)
-{
-	lnet_md_t md = { NULL };
-	lnet_handle_me_t meh;
-	lnet_process_id_t id;
-	int rc;
-	int rc2;
-	int infosz;
-
-	rc = lnet_create_ping_info();
-	if (rc)
-		return rc;
-
-	/*
-	 * We can have a tiny EQ since we only need to see the unlink event on
-	 * teardown, which by definition is the last one!
-	 */
-	rc = LNetEQAlloc(2, LNET_EQ_HANDLER_NONE, &the_lnet.ln_ping_target_eq);
-	if (rc) {
-		CERROR("Can't allocate ping EQ: %d\n", rc);
-		goto failed_0;
-	}
-
-	memset(&id, 0, sizeof(lnet_process_id_t));
-	id.nid = LNET_NID_ANY;
-	id.pid = LNET_PID_ANY;
-
-	rc = LNetMEAttach(LNET_RESERVED_PORTAL, id,
-			  LNET_PROTO_PING_MATCHBITS, 0,
-			  LNET_UNLINK, LNET_INS_AFTER,
-			  &meh);
-	if (rc) {
-		CERROR("Can't create ping ME: %d\n", rc);
-		goto failed_1;
-	}
-
-	/* initialize md content */
-	infosz = offsetof(lnet_ping_info_t,
-			  pi_ni[the_lnet.ln_ping_info->pi_nnis]);
-	md.start     = the_lnet.ln_ping_info;
-	md.length    = infosz;
-	md.threshold = LNET_MD_THRESH_INF;
-	md.max_size  = 0;
-	md.options   = LNET_MD_OP_GET | LNET_MD_TRUNCATE |
-		       LNET_MD_MANAGE_REMOTE;
-	md.user_ptr  = NULL;
-	md.eq_handle = the_lnet.ln_ping_target_eq;
-
-	rc = LNetMDAttach(meh, md,
-			  LNET_RETAIN,
-			  &the_lnet.ln_ping_target_md);
-	if (rc) {
-		CERROR("Can't attach ping MD: %d\n", rc);
-		goto failed_2;
-	}
-
-	return 0;
-
- failed_2:
-	rc2 = LNetMEUnlink(meh);
-	LASSERT(!rc2);
- failed_1:
-	rc2 = LNetEQFree(the_lnet.ln_ping_target_eq);
-	LASSERT(!rc2);
- failed_0:
-	lnet_destroy_ping_info();
-	return rc;
-}
-
-void
-lnet_ping_target_fini(void)
-{
-	lnet_event_t event;
-	int rc;
-	int which;
-	int timeout_ms = 1000;
-	sigset_t blocked = cfs_block_allsigs();
-
-	LNetMDUnlink(the_lnet.ln_ping_target_md);
-	/* NB md could be busy; this just starts the unlink */
-
-	for (;;) {
-		rc = LNetEQPoll(&the_lnet.ln_ping_target_eq, 1,
-				timeout_ms, &event, &which);
-
-		/* I expect overflow... */
-		LASSERT(rc >= 0 || rc == -EOVERFLOW);
-
-		if (!rc) {
-			/* timed out: provide a diagnostic */
-			CWARN("Still waiting for ping MD to unlink\n");
-			timeout_ms *= 2;
-			continue;
-		}
-
-		/* Got a valid event */
-		if (event.unlinked)
-			break;
-	}
-
-	rc = LNetEQFree(the_lnet.ln_ping_target_eq);
-	LASSERT(!rc);
-	lnet_destroy_ping_info();
-	cfs_restore_sigs(blocked);
-}
-
 static int lnet_ping(lnet_process_id_t id, int timeout_ms,
 		     lnet_process_id_t __user *ids, int n_ids)
 {
@@ -1674,7 +2127,7 @@ static int lnet_ping(lnet_process_id_t id, int timeout_ms,
 	int unlinked = 0;
 	int replied = 0;
 	const int a_long_time = 60000; /* mS */
-	int infosz = offsetof(lnet_ping_info_t, pi_ni[n_ids]);
+	int infosz;
 	lnet_ping_info_t *info;
 	lnet_process_id_t tmpid;
 	int i;
@@ -1683,6 +2136,8 @@ static int lnet_ping(lnet_process_id_t id, int timeout_ms,
 	int rc2;
 	sigset_t blocked;
 
+	infosz = offsetof(lnet_ping_info_t, pi_ni[n_ids]);
+
 	if (n_ids <= 0 ||
 	    id.nid == LNET_NID_ANY ||
 	    timeout_ms > 500000 ||	      /* arbitrary limit! */
@@ -1690,7 +2145,7 @@ static int lnet_ping(lnet_process_id_t id, int timeout_ms,
 		return -EINVAL;
 
 	if (id.pid == LNET_PID_ANY)
-		id.pid = LUSTRE_SRV_LNET_PID;
+		id.pid = LNET_PID_LUSTRE;
 
 	LIBCFS_ALLOC(info, infosz);
 	if (!info)
diff --git a/drivers/staging/lustre/lnet/lnet/config.c b/drivers/staging/lustre/lnet/lnet/config.c
index e817eb3..8c80625 100644
--- a/drivers/staging/lustre/lnet/lnet/config.c
+++ b/drivers/staging/lustre/lnet/lnet/config.c
@@ -77,7 +77,7 @@ lnet_issep(char c)
 	}
 }
 
-static int
+int
 lnet_net_unique(__u32 net, struct list_head *nilist)
 {
 	struct list_head *tmp;
@@ -96,6 +96,8 @@ lnet_net_unique(__u32 net, struct list_head *nilist)
 void
 lnet_ni_free(struct lnet_ni *ni)
 {
+	int i;
+
 	if (ni->ni_refs)
 		cfs_percpt_free(ni->ni_refs);
 
@@ -105,10 +107,14 @@ lnet_ni_free(struct lnet_ni *ni)
 	if (ni->ni_cpts)
 		cfs_expr_list_values_free(ni->ni_cpts, ni->ni_ncpts);
 
+	for (i = 0; i < LNET_MAX_INTERFACES && ni->ni_interfaces[i]; i++) {
+		LIBCFS_FREE(ni->ni_interfaces[i],
+			    strlen(ni->ni_interfaces[i]) + 1);
+	}
 	LIBCFS_FREE(ni, sizeof(*ni));
 }
 
-static lnet_ni_t *
+lnet_ni_t *
 lnet_ni_alloc(__u32 net, struct cfs_expr_list *el, struct list_head *nilist)
 {
 	struct lnet_tx_queue *tq;
@@ -178,13 +184,19 @@ int
 lnet_parse_networks(struct list_head *nilist, char *networks)
 {
 	struct cfs_expr_list *el = NULL;
-	int tokensize = strlen(networks) + 1;
+	int tokensize;
 	char *tokens;
 	char *str;
 	char *tmp;
 	struct lnet_ni *ni;
 	__u32 net;
 	int nnets = 0;
+	struct list_head *temp_node;
+
+	if (!networks) {
+		CERROR("networks string is undefined\n");
+		return -EINVAL;
+	}
 
 	if (strlen(networks) > LNET_SINGLE_TEXTBUF_NOB) {
 		/* _WAY_ conservative */
@@ -193,23 +205,18 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 		return -EINVAL;
 	}
 
+	tokensize = strlen(networks) + 1;
+
 	LIBCFS_ALLOC(tokens, tokensize);
 	if (!tokens) {
 		CERROR("Can't allocate net tokens\n");
 		return -ENOMEM;
 	}
 
-	the_lnet.ln_network_tokens = tokens;
-	the_lnet.ln_network_tokens_nob = tokensize;
 	memcpy(tokens, networks, tokensize);
 	tmp = tokens;
 	str = tokens;
 
-	/* Add in the loopback network */
-	ni = lnet_ni_alloc(LNET_MKNET(LOLND, 0), NULL, nilist);
-	if (!ni)
-		goto failed;
-
 	while (str && *str) {
 		char *comma = strchr(str, ',');
 		char *bracket = strchr(str, '(');
@@ -283,7 +290,6 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 			goto failed_syntax;
 		}
 
-		nnets++;
 		ni = lnet_ni_alloc(net, el, nilist);
 		if (!ni)
 			goto failed;
@@ -321,7 +327,23 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 				goto failed;
 			}
 
-			ni->ni_interfaces[niface++] = iface;
+			/*
+			 * Allocate a separate piece of memory and copy
+			 * into it the string, so we don't have
+			 * a depencency on the tokens string.  This way we
+			 * can free the tokens at the end of the function.
+			 * The newly allocated ni_interfaces[] can be
+			 * freed when freeing the NI
+			 */
+			LIBCFS_ALLOC(ni->ni_interfaces[niface],
+				     strlen(iface) + 1);
+			if (!ni->ni_interfaces[niface]) {
+				CERROR("Can't allocate net interface name\n");
+				goto failed;
+			}
+			strncpy(ni->ni_interfaces[niface], iface,
+				strlen(iface));
+			niface++;
 			iface = comma;
 		} while (iface);
 
@@ -345,8 +367,11 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 		}
 	}
 
-	LASSERT(!list_empty(nilist));
-	return 0;
+	list_for_each(temp_node, nilist)
+		nnets++;
+
+	LIBCFS_FREE(tokens, tokensize);
+	return nnets;
 
  failed_syntax:
 	lnet_syntax("networks", networks, (int)(tmp - tokens), strlen(tmp));
@@ -362,7 +387,6 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 		cfs_expr_list_free(el);
 
 	LIBCFS_FREE(tokens, tokensize);
-	the_lnet.ln_network_tokens = NULL;
 
 	return -EINVAL;
 }
@@ -745,7 +769,7 @@ lnet_parse_route(char *str, int *im_a_router)
 			}
 
 			rc = lnet_add_route(net, hops, nid, priority);
-			if (rc) {
+			if (rc && rc != -EEXIST && rc != -EHOSTUNREACH) {
 				CERROR("Can't create route to %s via %s\n",
 				       libcfs_net2str(net),
 				       libcfs_nid2str(nid));
diff --git a/drivers/staging/lustre/lnet/lnet/lib-eq.c b/drivers/staging/lustre/lnet/lnet/lib-eq.c
index b8f248e..042e974 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-eq.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-eq.c
@@ -72,7 +72,6 @@ LNetEQAlloc(unsigned int count, lnet_eq_handler_t callback,
 {
 	lnet_eq_t *eq;
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	/*
@@ -167,7 +166,6 @@ LNetEQFree(lnet_handle_eq_t eqh)
 	int size = 0;
 	int i;
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	lnet_res_lock(LNET_LOCK_EX);
@@ -383,7 +381,6 @@ LNetEQPoll(lnet_handle_eq_t *eventqs, int neq, int timeout_ms,
 	int rc;
 	int i;
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	if (neq < 1)
diff --git a/drivers/staging/lustre/lnet/lnet/lib-md.c b/drivers/staging/lustre/lnet/lnet/lib-md.c
index f26bb03..c74514f 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-md.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-md.c
@@ -281,7 +281,6 @@ LNetMDAttach(lnet_handle_me_t meh, lnet_md_t umd,
 	int cpt;
 	int rc;
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	if (lnet_md_validate(&umd))
@@ -360,7 +359,6 @@ LNetMDBind(lnet_md_t umd, lnet_unlink_t unlink, lnet_handle_md_t *handle)
 	int cpt;
 	int rc;
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	if (lnet_md_validate(&umd))
@@ -435,7 +433,6 @@ LNetMDUnlink(lnet_handle_md_t mdh)
 	lnet_libmd_t *md;
 	int cpt;
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	cpt = lnet_cpt_of_cookie(mdh.cookie);
diff --git a/drivers/staging/lustre/lnet/lnet/lib-me.c b/drivers/staging/lustre/lnet/lnet/lib-me.c
index 3c59c88..e671aed 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-me.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-me.c
@@ -83,7 +83,6 @@ LNetMEAttach(unsigned int portal,
 	struct lnet_me *me;
 	struct list_head *head;
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	if ((int)portal >= the_lnet.ln_nportals)
@@ -156,7 +155,6 @@ LNetMEInsert(lnet_handle_me_t current_meh,
 	struct lnet_portal *ptl;
 	int cpt;
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	if (pos == LNET_INS_LOCAL)
@@ -233,7 +231,6 @@ LNetMEUnlink(lnet_handle_me_t meh)
 	lnet_event_t ev;
 	int cpt;
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	cpt = lnet_cpt_of_cookie(meh.cookie);
diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c
index 8f16913..7bc3e91 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-move.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-move.c
@@ -42,6 +42,11 @@
 
 #include "../../include/linux/lnet/lib-lnet.h"
 
+/** lnet message has credit and can be submitted to lnd for send/receive */
+#define LNET_CREDIT_OK		0
+/** lnet message is waiting for credit */
+#define LNET_CREDIT_WAIT	1
+
 static int local_nid_dist_zero = 1;
 module_param(local_nid_dist_zero, int, 0444);
 MODULE_PARM_DESC(local_nid_dist_zero, "Reserved");
@@ -54,8 +59,6 @@ lnet_fail_nid(lnet_nid_t nid, unsigned int threshold)
 	struct list_head *next;
 	struct list_head cull;
 
-	LASSERT(the_lnet.ln_init);
-
 	/* NB: use lnet_net_lock(0) to serialize operations on test peers */
 	if (threshold) {
 		/* Adding a new entry */
@@ -786,10 +789,10 @@ lnet_peer_alive_locked(lnet_peer_t *lp)
  *	  lnet_send() is going to lnet_net_unlock immediately after this, so
  *	  it sets do_send FALSE and I don't do the unlock/send/lock bit.
  *
- * \retval 0 If \a msg sent or OK to send.
- * \retval EAGAIN If \a msg blocked for credit.
- * \retval EHOSTUNREACH If the next hop of the message appears dead.
- * \retval ECANCELED If the MD of the message has been unlinked.
+ * \retval LNET_CREDIT_OK If \a msg sent or OK to send.
+ * \retval LNET_CREDIT_WAIT If \a msg blocked for credit.
+ * \retval -EHOSTUNREACH If the next hop of the message appears dead.
+ * \retval -ECANCELED If the MD of the message has been unlinked.
  */
 static int
 lnet_post_send_locked(lnet_msg_t *msg, int do_send)
@@ -817,7 +820,7 @@ lnet_post_send_locked(lnet_msg_t *msg, int do_send)
 			lnet_finalize(ni, msg, -EHOSTUNREACH);
 
 		lnet_net_lock(cpt);
-		return EHOSTUNREACH;
+		return -EHOSTUNREACH;
 	}
 
 	if (msg->msg_md &&
@@ -830,7 +833,7 @@ lnet_post_send_locked(lnet_msg_t *msg, int do_send)
 			lnet_finalize(ni, msg, -ECANCELED);
 
 		lnet_net_lock(cpt);
-		return ECANCELED;
+		return -ECANCELED;
 	}
 
 	if (!msg->msg_peertxcredit) {
@@ -847,7 +850,7 @@ lnet_post_send_locked(lnet_msg_t *msg, int do_send)
 		if (lp->lp_txcredits < 0) {
 			msg->msg_tx_delayed = 1;
 			list_add_tail(&msg->msg_list, &lp->lp_txq);
-			return EAGAIN;
+			return LNET_CREDIT_WAIT;
 		}
 	}
 
@@ -864,7 +867,7 @@ lnet_post_send_locked(lnet_msg_t *msg, int do_send)
 		if (tq->tq_credits < 0) {
 			msg->msg_tx_delayed = 1;
 			list_add_tail(&msg->msg_list, &tq->tq_delayed);
-			return EAGAIN;
+			return LNET_CREDIT_WAIT;
 		}
 	}
 
@@ -873,7 +876,7 @@ lnet_post_send_locked(lnet_msg_t *msg, int do_send)
 		lnet_ni_send(ni, msg);
 		lnet_net_lock(cpt);
 	}
-	return 0;
+	return LNET_CREDIT_OK;
 }
 
 static lnet_rtrbufpool_t *
@@ -901,8 +904,9 @@ lnet_post_routed_recv_locked(lnet_msg_t *msg, int do_recv)
 {
 	/*
 	 * lnet_parse is going to lnet_net_unlock immediately after this, so it
-	 * sets do_recv FALSE and I don't do the unlock/send/lock bit.  I
-	 * return EAGAIN if msg blocked and 0 if received or OK to receive
+	 * sets do_recv FALSE and I don't do the unlock/send/lock bit.
+	 * I return LNET_CREDIT_WAIT if msg blocked and LNET_CREDIT_OK if
+	 * received or OK to receive
 	 */
 	lnet_peer_t *lp = msg->msg_rxpeer;
 	lnet_rtrbufpool_t *rbp;
@@ -932,16 +936,13 @@ lnet_post_routed_recv_locked(lnet_msg_t *msg, int do_recv)
 			LASSERT(msg->msg_rx_ready_delay);
 			msg->msg_rx_delayed = 1;
 			list_add_tail(&msg->msg_list, &lp->lp_rtrq);
-			return EAGAIN;
+			return LNET_CREDIT_WAIT;
 		}
 	}
 
 	rbp = lnet_msg2bufpool(msg);
 
 	if (!msg->msg_rtrcredit) {
-		LASSERT((rbp->rbp_credits < 0) ==
-			 !list_empty(&rbp->rbp_msgs));
-
 		msg->msg_rtrcredit = 1;
 		rbp->rbp_credits--;
 		if (rbp->rbp_credits < rbp->rbp_mincredits)
@@ -952,7 +953,7 @@ lnet_post_routed_recv_locked(lnet_msg_t *msg, int do_recv)
 			LASSERT(msg->msg_rx_ready_delay);
 			msg->msg_rx_delayed = 1;
 			list_add_tail(&msg->msg_list, &rbp->rbp_msgs);
-			return EAGAIN;
+			return LNET_CREDIT_WAIT;
 		}
 	}
 
@@ -971,7 +972,7 @@ lnet_post_routed_recv_locked(lnet_msg_t *msg, int do_recv)
 			     0, msg->msg_len, msg->msg_len);
 		lnet_net_lock(cpt);
 	}
-	return 0;
+	return LNET_CREDIT_OK;
 }
 
 void
@@ -1033,6 +1034,43 @@ lnet_return_tx_credits_locked(lnet_msg_t *msg)
 }
 
 void
+lnet_schedule_blocked_locked(lnet_rtrbufpool_t *rbp)
+{
+	lnet_msg_t *msg;
+
+	if (list_empty(&rbp->rbp_msgs))
+		return;
+	msg = list_entry(rbp->rbp_msgs.next,
+			 lnet_msg_t, msg_list);
+	list_del(&msg->msg_list);
+
+	(void)lnet_post_routed_recv_locked(msg, 1);
+}
+
+void
+lnet_drop_routed_msgs_locked(struct list_head *list, int cpt)
+{
+	struct list_head drop;
+	lnet_msg_t *msg;
+	lnet_msg_t *tmp;
+
+	INIT_LIST_HEAD(&drop);
+
+	list_splice_init(list, &drop);
+
+	lnet_net_unlock(cpt);
+
+	list_for_each_entry_safe(msg, tmp, &drop, msg_list) {
+		lnet_ni_recv(msg->msg_rxpeer->lp_ni, msg->msg_private, NULL,
+			     0, 0, 0, msg->msg_hdr.payload_length);
+		list_del_init(&msg->msg_list);
+		lnet_finalize(NULL, msg, -ECANCELED);
+	}
+
+	lnet_net_lock(cpt);
+}
+
+void
 lnet_return_rx_credits_locked(lnet_msg_t *msg)
 {
 	lnet_peer_t *rxpeer = msg->msg_rxpeer;
@@ -1052,27 +1090,42 @@ lnet_return_rx_credits_locked(lnet_msg_t *msg)
 
 		rb = list_entry(msg->msg_kiov, lnet_rtrbuf_t, rb_kiov[0]);
 		rbp = rb->rb_pool;
-		LASSERT(rbp == lnet_msg2bufpool(msg));
 
 		msg->msg_kiov = NULL;
 		msg->msg_rtrcredit = 0;
 
-		LASSERT((rbp->rbp_credits < 0) ==
-			!list_empty(&rbp->rbp_msgs));
+		LASSERT(rbp == lnet_msg2bufpool(msg));
+
 		LASSERT((rbp->rbp_credits > 0) ==
 			!list_empty(&rbp->rbp_bufs));
 
-		list_add(&rb->rb_list, &rbp->rbp_bufs);
-		rbp->rbp_credits++;
-		if (rbp->rbp_credits <= 0) {
-			msg2 = list_entry(rbp->rbp_msgs.next,
-					  lnet_msg_t, msg_list);
-			list_del(&msg2->msg_list);
+		/*
+		 * If routing is now turned off, we just drop this buffer and
+		 * don't bother trying to return credits.
+		 */
+		if (!the_lnet.ln_routing) {
+			lnet_destroy_rtrbuf(rb, rbp->rbp_npages);
+			goto routing_off;
+		}
 
-			(void) lnet_post_routed_recv_locked(msg2, 1);
+		/*
+		 * It is possible that a user has lowered the desired number of
+		 * buffers in this pool.  Make sure we never put back
+		 * more buffers than the stated number.
+		 */
+		if (unlikely(rbp->rbp_credits >= rbp->rbp_req_nbuffers)) {
+			/* Discard this buffer so we don't have too many. */
+			lnet_destroy_rtrbuf(rb, rbp->rbp_npages);
+			rbp->rbp_nbuffers--;
+		} else {
+			list_add(&rb->rb_list, &rbp->rbp_bufs);
+			rbp->rbp_credits++;
+			if (rbp->rbp_credits <= 0)
+				lnet_schedule_blocked_locked(rbp);
 		}
 	}
 
+routing_off:
 	if (msg->msg_peerrtrcredit) {
 		/* give back peer router credits */
 		msg->msg_peerrtrcredit = 0;
@@ -1081,7 +1134,14 @@ lnet_return_rx_credits_locked(lnet_msg_t *msg)
 			!list_empty(&rxpeer->lp_rtrq));
 
 		rxpeer->lp_rtrcredits++;
-		if (rxpeer->lp_rtrcredits <= 0) {
+		/*
+		 * drop all messages which are queued to be routed on that
+		 * peer.
+		 */
+		if (!the_lnet.ln_routing) {
+			lnet_drop_routed_msgs_locked(&rxpeer->lp_rtrq,
+						     msg->msg_rx_cpt);
+		} else if (rxpeer->lp_rtrcredits <= 0) {
 			msg2 = list_entry(rxpeer->lp_rtrq.next,
 					  lnet_msg_t, msg_list);
 			list_del(&msg2->msg_list);
@@ -1135,9 +1195,9 @@ static lnet_peer_t *
 lnet_find_route_locked(lnet_ni_t *ni, lnet_nid_t target, lnet_nid_t rtr_nid)
 {
 	lnet_remotenet_t *rnet;
-	lnet_route_t *rtr;
-	lnet_route_t *rtr_best;
-	lnet_route_t *rtr_last;
+	lnet_route_t *route;
+	lnet_route_t *best_route;
+	lnet_route_t *last_route;
 	struct lnet_peer *lp_best;
 	struct lnet_peer *lp;
 	int rc;
@@ -1151,14 +1211,12 @@ lnet_find_route_locked(lnet_ni_t *ni, lnet_nid_t target, lnet_nid_t rtr_nid)
 		return NULL;
 
 	lp_best = NULL;
-	rtr_best = NULL;
-	rtr_last = NULL;
-	list_for_each_entry(rtr, &rnet->lrn_routes, lr_list) {
-		lp = rtr->lr_gateway;
-
-		if (!lp->lp_alive || /* gateway is down */
-		    ((lp->lp_ping_feats & LNET_PING_FEAT_NI_STATUS) &&
-		     rtr->lr_downis)) /* NI to target is down */
+	best_route = NULL;
+	last_route = NULL;
+	list_for_each_entry(route, &rnet->lrn_routes, lr_list) {
+		lp = route->lr_gateway;
+
+		if (!lnet_is_route_alive(route))
 			continue;
 
 		if (ni && lp->lp_ni != ni)
@@ -1168,21 +1226,21 @@ lnet_find_route_locked(lnet_ni_t *ni, lnet_nid_t target, lnet_nid_t rtr_nid)
 			return lp;
 
 		if (!lp_best) {
-			rtr_best = rtr;
-			rtr_last = rtr;
+			best_route = route;
+			last_route = route;
 			lp_best = lp;
 			continue;
 		}
 
 		/* no protection on below fields, but it's harmless */
-		if (rtr_last->lr_seq - rtr->lr_seq < 0)
-			rtr_last = rtr;
+		if (last_route->lr_seq - route->lr_seq < 0)
+			last_route = route;
 
-		rc = lnet_compare_routes(rtr, rtr_best);
+		rc = lnet_compare_routes(route, best_route);
 		if (rc < 0)
 			continue;
 
-		rtr_best = rtr;
+		best_route = route;
 		lp_best = lp;
 	}
 
@@ -1191,8 +1249,8 @@ lnet_find_route_locked(lnet_ni_t *ni, lnet_nid_t target, lnet_nid_t rtr_nid)
 	 * so we can round-robin all routers, it's race and inaccurate but
 	 * harmless and functional
 	 */
-	if (rtr_best)
-		rtr_best->lr_seq = rtr_last->lr_seq + 1;
+	if (best_route)
+		best_route->lr_seq = last_route->lr_seq + 1;
 	return lp_best;
 }
 
@@ -1348,7 +1406,7 @@ lnet_send(lnet_nid_t src_nid, lnet_msg_t *msg, lnet_nid_t rtr_nid)
 
 		msg->msg_target_is_router = 1;
 		msg->msg_target.nid = lp->lp_nid;
-		msg->msg_target.pid = LUSTRE_SRV_LNET_PID;
+		msg->msg_target.pid = LNET_PID_LUSTRE;
 	}
 
 	/* 'lp' is our best choice of peer */
@@ -1362,13 +1420,13 @@ lnet_send(lnet_nid_t src_nid, lnet_msg_t *msg, lnet_nid_t rtr_nid)
 	rc = lnet_post_send_locked(msg, 0);
 	lnet_net_unlock(cpt);
 
-	if (rc == EHOSTUNREACH || rc == ECANCELED)
-		return -rc;
+	if (rc < 0)
+		return rc;
 
-	if (!rc)
+	if (rc == LNET_CREDIT_OK)
 		lnet_ni_send(src_ni, msg);
 
-	return 0; /* !rc or EAGAIN */
+	return 0; /* rc == LNET_CREDIT_OK or LNET_CREDIT_WAIT */
 }
 
 static void
@@ -1632,11 +1690,19 @@ lnet_parse_ack(lnet_ni_t *ni, lnet_msg_t *msg)
 	return 0;
 }
 
+/**
+ * \retval LNET_CREDIT_OK	If \a msg is forwarded
+ * \retval LNET_CREDIT_WAIT	If \a msg is blocked because w/o buffer
+ * \retval -ve			error code
+ */
 static int
 lnet_parse_forward_locked(lnet_ni_t *ni, lnet_msg_t *msg)
 {
 	int rc = 0;
 
+	if (!the_lnet.ln_routing)
+		return -ECANCELED;
+
 	if (msg->msg_rxpeer->lp_rtrcredits <= 0 ||
 	    lnet_msg2bufpool(msg)->rbp_credits <= 0) {
 		if (!ni->ni_lnd->lnd_eager_recv) {
@@ -1790,9 +1856,8 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
 
 	if (the_lnet.ln_routing &&
 	    ni->ni_last_alive != ktime_get_real_seconds()) {
-		lnet_ni_lock(ni);
-
 		/* NB: so far here is the only place to set NI status to "up */
+		lnet_ni_lock(ni);
 		ni->ni_last_alive = ktime_get_real_seconds();
 		if (ni->ni_status &&
 		    ni->ni_status->ns_status == LNET_NI_STATUS_DOWN)
@@ -1923,7 +1988,8 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
 
 		if (rc < 0)
 			goto free_drop;
-		if (!rc) {
+
+		if (rc == LNET_CREDIT_OK) {
 			lnet_ni_recv(ni, msg->msg_private, msg, 0,
 				     0, payload_length, payload_length);
 		}
@@ -2095,7 +2161,6 @@ LNetPut(lnet_nid_t self, lnet_handle_md_t mdh, lnet_ack_req_t ack,
 	int cpt;
 	int rc;
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	if (!list_empty(&the_lnet.ln_test_peers) && /* normally we don't */
@@ -2189,17 +2254,17 @@ lnet_create_reply_msg(lnet_ni_t *ni, lnet_msg_t *getmsg)
 	LASSERT(!getmsg->msg_target_is_router);
 	LASSERT(!getmsg->msg_routing);
 
-	cpt = lnet_cpt_of_cookie(getmd->md_lh.lh_cookie);
-	lnet_res_lock(cpt);
-
-	LASSERT(getmd->md_refcount > 0);
-
 	if (!msg) {
 		CERROR("%s: Dropping REPLY from %s: can't allocate msg\n",
 		       libcfs_nid2str(ni->ni_nid), libcfs_id2str(peer_id));
 		goto drop;
 	}
 
+	cpt = lnet_cpt_of_cookie(getmd->md_lh.lh_cookie);
+	lnet_res_lock(cpt);
+
+	LASSERT(getmd->md_refcount > 0);
+
 	if (!getmd->md_threshold) {
 		CERROR("%s: Dropping REPLY from %s for inactive MD %p\n",
 		       libcfs_nid2str(ni->ni_nid), libcfs_id2str(peer_id),
@@ -2300,7 +2365,6 @@ LNetGet(lnet_nid_t self, lnet_handle_md_t mdh,
 	int cpt;
 	int rc;
 
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	if (!list_empty(&the_lnet.ln_test_peers) && /* normally we don't */
@@ -2400,7 +2464,6 @@ LNetDist(lnet_nid_t dstnid, lnet_nid_t *srcnidp, __u32 *orderp)
 	 * keep order 0 free for 0@lo and order 1 free for a local NID
 	 * match
 	 */
-	LASSERT(the_lnet.ln_init);
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	cpt = lnet_net_lock_current();
diff --git a/drivers/staging/lustre/lnet/lnet/lib-msg.c b/drivers/staging/lustre/lnet/lnet/lib-msg.c
index 749e76a..c372390 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-msg.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-msg.c
@@ -571,35 +571,17 @@ lnet_msg_container_cleanup(struct lnet_msg_container *container)
 			    sizeof(*container->msc_finalizers));
 		container->msc_finalizers = NULL;
 	}
-#ifdef LNET_USE_LIB_FREELIST
-	lnet_freelist_fini(&container->msc_freelist);
-#endif
 	container->msc_init = 0;
 }
 
 int
 lnet_msg_container_setup(struct lnet_msg_container *container, int cpt)
 {
-	int rc;
-
 	container->msc_init = 1;
 
 	INIT_LIST_HEAD(&container->msc_active);
 	INIT_LIST_HEAD(&container->msc_finalizing);
 
-#ifdef LNET_USE_LIB_FREELIST
-	memset(&container->msc_freelist, 0, sizeof(lnet_freelist_t));
-
-	rc = lnet_freelist_init(&container->msc_freelist,
-				LNET_FL_MAX_MSGS, sizeof(lnet_msg_t));
-	if (rc) {
-		CERROR("Failed to init freelist for message container\n");
-		lnet_msg_container_cleanup(container);
-		return rc;
-	}
-#else
-	rc = 0;
-#endif
 	/* number of CPUs */
 	container->msc_nfinalizers = cfs_cpt_weight(lnet_cpt_table(), cpt);
 
@@ -613,7 +595,7 @@ lnet_msg_container_setup(struct lnet_msg_container *container, int cpt)
 		return -ENOMEM;
 	}
 
-	return rc;
+	return 0;
 }
 
 void
diff --git a/drivers/staging/lustre/lnet/lnet/lib-ptl.c b/drivers/staging/lustre/lnet/lnet/lib-ptl.c
index 0cdeea9..0281c6a 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-ptl.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-ptl.c
@@ -13,11 +13,6 @@
  * General Public License version 2 for more details (a copy is included
  * in the LICENSE file that accompanied this code).
  *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
  * GPL HEADER END
  */
 /*
@@ -902,17 +897,8 @@ LNetSetLazyPortal(int portal)
 }
 EXPORT_SYMBOL(LNetSetLazyPortal);
 
-/**
- * Turn off the lazy portal attribute. Delayed requests on the portal,
- * if any, will be all dropped when this function returns.
- *
- * \param portal Index of the portal to disable the lazy attribute on.
- *
- * \retval 0       On success.
- * \retval -EINVAL If \a portal is not a valid index.
- */
 int
-LNetClearLazyPortal(int portal)
+lnet_clear_lazy_portal(struct lnet_ni *ni, int portal, char *reason)
 {
 	struct lnet_portal *ptl;
 	LIST_HEAD(zombies);
@@ -931,21 +917,48 @@ LNetClearLazyPortal(int portal)
 		return 0;
 	}
 
-	if (the_lnet.ln_shutdown)
-		CWARN("Active lazy portal %d on exit\n", portal);
-	else
-		CDEBUG(D_NET, "clearing portal %d lazy\n", portal);
+	if (ni) {
+		struct lnet_msg *msg, *tmp;
+
+		/* grab all messages which are on the NI passed in */
+		list_for_each_entry_safe(msg, tmp, &ptl->ptl_msg_delayed,
+					 msg_list) {
+			if (msg->msg_rxpeer->lp_ni == ni)
+				list_move(&msg->msg_list, &zombies);
+		}
+	} else {
+		if (the_lnet.ln_shutdown)
+			CWARN("Active lazy portal %d on exit\n", portal);
+		else
+			CDEBUG(D_NET, "clearing portal %d lazy\n", portal);
 
-	/* grab all the blocked messages atomically */
-	list_splice_init(&ptl->ptl_msg_delayed, &zombies);
+		/* grab all the blocked messages atomically */
+		list_splice_init(&ptl->ptl_msg_delayed, &zombies);
 
-	lnet_ptl_unsetopt(ptl, LNET_PTL_LAZY);
+		lnet_ptl_unsetopt(ptl, LNET_PTL_LAZY);
+	}
 
 	lnet_ptl_unlock(ptl);
 	lnet_res_unlock(LNET_LOCK_EX);
 
-	lnet_drop_delayed_msg_list(&zombies, "Clearing lazy portal attr");
+	lnet_drop_delayed_msg_list(&zombies, reason);
 
 	return 0;
 }
+
+/**
+ * Turn off the lazy portal attribute. Delayed requests on the portal,
+ * if any, will be all dropped when this function returns.
+ *
+ * \param portal Index of the portal to disable the lazy attribute on.
+ *
+ * \retval 0       On success.
+ * \retval -EINVAL If \a portal is not a valid index.
+ */
+int
+LNetClearLazyPortal(int portal)
+{
+	return lnet_clear_lazy_portal(NULL, portal,
+				      "Clearing lazy portal attr");
+}
 EXPORT_SYMBOL(LNetClearLazyPortal);
diff --git a/drivers/staging/lustre/lnet/lnet/lib-socket.c b/drivers/staging/lustre/lnet/lnet/lib-socket.c
index 53dd0bd..88905d5 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-socket.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-socket.c
@@ -514,7 +514,6 @@ lnet_sock_listen(struct socket **sockp, __u32 local_ip, int local_port,
 	sock_release(*sockp);
 	return rc;
 }
-EXPORT_SYMBOL(lnet_sock_listen);
 
 int
 lnet_sock_accept(struct socket **newsockp, struct socket *sock)
@@ -558,7 +557,6 @@ failed:
 	sock_release(newsock);
 	return rc;
 }
-EXPORT_SYMBOL(lnet_sock_accept);
 
 int
 lnet_sock_connect(struct socket **sockp, int *fatal, __u32 local_ip,
@@ -596,4 +594,3 @@ lnet_sock_connect(struct socket **sockp, int *fatal, __u32 local_ip,
 	sock_release(*sockp);
 	return rc;
 }
-EXPORT_SYMBOL(lnet_sock_connect);
diff --git a/drivers/staging/lustre/lnet/lnet/module.c b/drivers/staging/lustre/lnet/lnet/module.c
index cd37303..e12fe37 100644
--- a/drivers/staging/lustre/lnet/lnet/module.c
+++ b/drivers/staging/lustre/lnet/lnet/module.c
@@ -36,6 +36,7 @@
 
 #define DEBUG_SUBSYSTEM S_LNET
 #include "../../include/linux/lnet/lib-lnet.h"
+#include "../../include/linux/lnet/lib-dlc.h"
 
 static int config_on_load;
 module_param(config_on_load, int, 0444);
@@ -52,13 +53,21 @@ lnet_configure(void *arg)
 	mutex_lock(&lnet_config_mutex);
 
 	if (!the_lnet.ln_niinit_self) {
-		rc = LNetNIInit(LUSTRE_SRV_LNET_PID);
+		rc = try_module_get(THIS_MODULE);
+
+		if (rc != 1)
+			goto out;
+
+		rc = LNetNIInit(LNET_PID_LUSTRE);
 		if (rc >= 0) {
 			the_lnet.ln_niinit_self = 1;
 			rc = 0;
+		} else {
+			module_put(THIS_MODULE);
 		}
 	}
 
+out:
 	mutex_unlock(&lnet_config_mutex);
 	return rc;
 }
@@ -73,6 +82,7 @@ lnet_unconfigure(void)
 	if (the_lnet.ln_niinit_self) {
 		the_lnet.ln_niinit_self = 0;
 		LNetNIFini();
+		module_put(THIS_MODULE);
 	}
 
 	mutex_lock(&the_lnet.ln_api_mutex);
@@ -84,17 +94,80 @@ lnet_unconfigure(void)
 }
 
 static int
-lnet_ioctl(unsigned int cmd, struct libcfs_ioctl_data *data)
+lnet_dyn_configure(struct libcfs_ioctl_hdr *hdr)
+{
+	struct lnet_ioctl_config_data *conf =
+		(struct lnet_ioctl_config_data *)hdr;
+	int rc;
+
+	if (conf->cfg_hdr.ioc_len < sizeof(*conf))
+		return -EINVAL;
+
+	mutex_lock(&lnet_config_mutex);
+	if (!the_lnet.ln_niinit_self) {
+		rc = -EINVAL;
+		goto out_unlock;
+	}
+	rc = lnet_dyn_add_ni(LNET_PID_LUSTRE,
+			     conf->cfg_config_u.cfg_net.net_intf,
+			     conf->cfg_config_u.cfg_net.net_peer_timeout,
+			     conf->cfg_config_u.cfg_net.net_peer_tx_credits,
+			     conf->cfg_config_u.cfg_net.net_peer_rtr_credits,
+			     conf->cfg_config_u.cfg_net.net_max_tx_credits);
+out_unlock:
+	mutex_unlock(&lnet_config_mutex);
+
+	return rc;
+}
+
+static int
+lnet_dyn_unconfigure(struct libcfs_ioctl_hdr *hdr)
+{
+	struct lnet_ioctl_config_data *conf =
+		(struct lnet_ioctl_config_data *)hdr;
+	int rc;
+
+	if (conf->cfg_hdr.ioc_len < sizeof(*conf))
+		return -EINVAL;
+
+	mutex_lock(&lnet_config_mutex);
+	if (!the_lnet.ln_niinit_self) {
+		rc = -EINVAL;
+		goto out_unlock;
+	}
+	rc = lnet_dyn_del_ni(conf->cfg_net);
+out_unlock:
+	mutex_unlock(&lnet_config_mutex);
+
+	return rc;
+}
+
+static int
+lnet_ioctl(unsigned int cmd, struct libcfs_ioctl_hdr *hdr)
 {
 	int rc;
 
 	switch (cmd) {
-	case IOC_LIBCFS_CONFIGURE:
+	case IOC_LIBCFS_CONFIGURE: {
+		struct libcfs_ioctl_data *data =
+			(struct libcfs_ioctl_data *)hdr;
+
+		if (data->ioc_hdr.ioc_len < sizeof(*data))
+			return -EINVAL;
+
+		the_lnet.ln_nis_from_mod_params = data->ioc_flags;
 		return lnet_configure(NULL);
+	}
 
 	case IOC_LIBCFS_UNCONFIGURE:
 		return lnet_unconfigure();
 
+	case IOC_LIBCFS_ADD_NET:
+		return lnet_dyn_configure(hdr);
+
+	case IOC_LIBCFS_DEL_NET:
+		return lnet_dyn_unconfigure(hdr);
+
 	default:
 		/*
 		 * Passing LNET_PID_ANY only gives me a ref if the net is up
@@ -103,7 +176,7 @@ lnet_ioctl(unsigned int cmd, struct libcfs_ioctl_data *data)
 		 */
 		rc = LNetNIInit(LNET_PID_ANY);
 		if (rc >= 0) {
-			rc = LNetCtl(cmd, data);
+			rc = LNetCtl(cmd, hdr);
 			LNetNIFini();
 		}
 		return rc;
diff --git a/drivers/staging/lustre/lnet/lnet/peer.c b/drivers/staging/lustre/lnet/lnet/peer.c
index 00086ee..19c80c9 100644
--- a/drivers/staging/lustre/lnet/lnet/peer.c
+++ b/drivers/staging/lustre/lnet/lnet/peer.c
@@ -39,6 +39,7 @@
 #define DEBUG_SUBSYSTEM S_LNET
 
 #include "../../include/linux/lnet/lib-lnet.h"
+#include "../../include/linux/lnet/lib-dlc.h"
 
 int
 lnet_peer_tables_create(void)
@@ -103,62 +104,116 @@ lnet_peer_tables_destroy(void)
 	the_lnet.ln_peer_tables = NULL;
 }
 
+static void
+lnet_peer_table_cleanup_locked(lnet_ni_t *ni, struct lnet_peer_table *ptable)
+{
+	int i;
+	lnet_peer_t *lp;
+	lnet_peer_t *tmp;
+
+	for (i = 0; i < LNET_PEER_HASH_SIZE; i++) {
+		list_for_each_entry_safe(lp, tmp, &ptable->pt_hash[i],
+					 lp_hashlist) {
+			if (ni && ni != lp->lp_ni)
+				continue;
+			list_del_init(&lp->lp_hashlist);
+			/* Lose hash table's ref */
+			ptable->pt_zombies++;
+			lnet_peer_decref_locked(lp);
+		}
+	}
+}
+
+static void
+lnet_peer_table_deathrow_wait_locked(struct lnet_peer_table *ptable,
+				     int cpt_locked)
+{
+	int i;
+
+	for (i = 3; ptable->pt_zombies; i++) {
+		lnet_net_unlock(cpt_locked);
+
+		if (is_power_of_2(i)) {
+			CDEBUG(D_WARNING,
+			       "Waiting for %d zombies on peer table\n",
+			       ptable->pt_zombies);
+		}
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(cfs_time_seconds(1) >> 1);
+		lnet_net_lock(cpt_locked);
+	}
+}
+
+static void
+lnet_peer_table_del_rtrs_locked(lnet_ni_t *ni, struct lnet_peer_table *ptable,
+				int cpt_locked)
+{
+	lnet_peer_t *lp;
+	lnet_peer_t *tmp;
+	lnet_nid_t lp_nid;
+	int i;
+
+	for (i = 0; i < LNET_PEER_HASH_SIZE; i++) {
+		list_for_each_entry_safe(lp, tmp, &ptable->pt_hash[i],
+					 lp_hashlist) {
+			if (ni != lp->lp_ni)
+				continue;
+
+			if (!lp->lp_rtr_refcount)
+				continue;
+
+			lp_nid = lp->lp_nid;
+
+			lnet_net_unlock(cpt_locked);
+			lnet_del_route(LNET_NIDNET(LNET_NID_ANY), lp_nid);
+			lnet_net_lock(cpt_locked);
+		}
+	}
+}
+
 void
-lnet_peer_tables_cleanup(void)
+lnet_peer_tables_cleanup(lnet_ni_t *ni)
 {
 	struct lnet_peer_table *ptable;
+	struct list_head deathrow;
+	lnet_peer_t *lp;
 	int i;
-	int j;
 
-	LASSERT(the_lnet.ln_shutdown);	/* i.e. no new peers */
+	INIT_LIST_HEAD(&deathrow);
 
+	LASSERT(the_lnet.ln_shutdown || ni);
+	/*
+	 * If just deleting the peers for a NI, get rid of any routes these
+	 * peers are gateways for.
+	 */
 	cfs_percpt_for_each(ptable, i, the_lnet.ln_peer_tables) {
 		lnet_net_lock(i);
-
-		for (j = 0; j < LNET_PEER_HASH_SIZE; j++) {
-			struct list_head *peers = &ptable->pt_hash[j];
-
-			while (!list_empty(peers)) {
-				lnet_peer_t *lp = list_entry(peers->next,
-								 lnet_peer_t,
-								 lp_hashlist);
-				list_del_init(&lp->lp_hashlist);
-				/* lose hash table's ref */
-				lnet_peer_decref_locked(lp);
-			}
-		}
-
+		lnet_peer_table_del_rtrs_locked(ni, ptable, i);
 		lnet_net_unlock(i);
 	}
 
+	/*
+	 * Start the process of moving the applicable peers to
+	 * deathrow.
+	 */
 	cfs_percpt_for_each(ptable, i, the_lnet.ln_peer_tables) {
-		LIST_HEAD(deathrow);
-		lnet_peer_t *lp;
-
 		lnet_net_lock(i);
+		lnet_peer_table_cleanup_locked(ni, ptable);
+		lnet_net_unlock(i);
+	}
 
-		for (j = 3; ptable->pt_number; j++) {
-			lnet_net_unlock(i);
-
-			if (!(j & (j - 1))) {
-				CDEBUG(D_WARNING,
-				       "Waiting for %d peers on peer table\n",
-				       ptable->pt_number);
-			}
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(cfs_time_seconds(1) / 2);
-			lnet_net_lock(i);
-		}
+	/* Cleanup all entries on deathrow. */
+	cfs_percpt_for_each(ptable, i, the_lnet.ln_peer_tables) {
+		lnet_net_lock(i);
+		lnet_peer_table_deathrow_wait_locked(ptable, i);
 		list_splice_init(&ptable->pt_deathrow, &deathrow);
-
 		lnet_net_unlock(i);
+	}
 
-		while (!list_empty(&deathrow)) {
-			lp = list_entry(deathrow.next,
-					lnet_peer_t, lp_hashlist);
-			list_del(&lp->lp_hashlist);
-			LIBCFS_FREE(lp, sizeof(*lp));
-		}
+	while (!list_empty(&deathrow)) {
+		lp = list_entry(deathrow.next, lnet_peer_t, lp_hashlist);
+		list_del(&lp->lp_hashlist);
+		LIBCFS_FREE(lp, sizeof(*lp));
 	}
 }
 
@@ -181,6 +236,8 @@ lnet_destroy_peer_locked(lnet_peer_t *lp)
 	lp->lp_ni = NULL;
 
 	list_add(&lp->lp_hashlist, &ptable->pt_deathrow);
+	LASSERT(ptable->pt_zombies > 0);
+	ptable->pt_zombies--;
 }
 
 lnet_peer_t *
@@ -336,3 +393,65 @@ lnet_debug_peer(lnet_nid_t nid)
 
 	lnet_net_unlock(cpt);
 }
+
+int
+lnet_get_peer_info(__u32 peer_index, __u64 *nid,
+		   char aliveness[LNET_MAX_STR_LEN],
+		   __u32 *cpt_iter, __u32 *refcount,
+		   __u32 *ni_peer_tx_credits, __u32 *peer_tx_credits,
+		   __u32 *peer_rtr_credits, __u32 *peer_min_rtr_credits,
+		   __u32 *peer_tx_qnob)
+{
+	struct lnet_peer_table *peer_table;
+	lnet_peer_t *lp;
+	bool found = false;
+	int lncpt, j;
+
+	/* get the number of CPTs */
+	lncpt = cfs_percpt_number(the_lnet.ln_peer_tables);
+
+	/*
+	 * if the cpt number to be examined is >= the number of cpts in
+	 * the system then indicate that there are no more cpts to examin
+	 */
+	if (*cpt_iter >= lncpt)
+		return -ENOENT;
+
+	/* get the current table */
+	peer_table = the_lnet.ln_peer_tables[*cpt_iter];
+	/* if the ptable is NULL then there are no more cpts to examine */
+	if (!peer_table)
+		return -ENOENT;
+
+	lnet_net_lock(*cpt_iter);
+
+	for (j = 0; j < LNET_PEER_HASH_SIZE && !found; j++) {
+		struct list_head *peers = &peer_table->pt_hash[j];
+
+		list_for_each_entry(lp, peers, lp_hashlist) {
+			if (peer_index-- > 0)
+				continue;
+
+			snprintf(aliveness, LNET_MAX_STR_LEN, "NA");
+			if (lnet_isrouter(lp) ||
+			    lnet_peer_aliveness_enabled(lp))
+				snprintf(aliveness, LNET_MAX_STR_LEN,
+					 lp->lp_alive ? "up" : "down");
+
+			*nid = lp->lp_nid;
+			*refcount = lp->lp_refcount;
+			*ni_peer_tx_credits = lp->lp_ni->ni_peertxcredits;
+			*peer_tx_credits = lp->lp_txcredits;
+			*peer_rtr_credits = lp->lp_rtrcredits;
+			*peer_min_rtr_credits = lp->lp_mintxcredits;
+			*peer_tx_qnob = lp->lp_txqnob;
+
+			found = true;
+		}
+	}
+	lnet_net_unlock(*cpt_iter);
+
+	*cpt_iter = lncpt;
+
+	return found ? 0 : -ENOENT;
+}
diff --git a/drivers/staging/lustre/lnet/lnet/router.c b/drivers/staging/lustre/lnet/lnet/router.c
index 735a8f2..5e8b0ba 100644
--- a/drivers/staging/lustre/lnet/lnet/router.c
+++ b/drivers/staging/lustre/lnet/lnet/router.c
@@ -15,10 +15,6 @@
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  */
 
 #define DEBUG_SUBSYSTEM S_LNET
@@ -28,8 +24,11 @@
 #define LNET_NRB_TINY		(LNET_NRB_TINY_MIN * 4)
 #define LNET_NRB_SMALL_MIN	4096	/* min value for each CPT */
 #define LNET_NRB_SMALL		(LNET_NRB_SMALL_MIN * 4)
+#define LNET_NRB_SMALL_PAGES	1
 #define LNET_NRB_LARGE_MIN	256	/* min value for each CPT */
 #define LNET_NRB_LARGE		(LNET_NRB_LARGE_MIN * 4)
+#define LNET_NRB_LARGE_PAGES   ((LNET_MTU + PAGE_CACHE_SIZE - 1) >> \
+				 PAGE_CACHE_SHIFT)
 
 static char *forwarding = "";
 module_param(forwarding, charp, 0444);
@@ -318,7 +317,7 @@ lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway,
 		return -EINVAL;
 
 	if (lnet_islocalnet(net))	       /* it's a local network */
-		return 0;		       /* ignore the route entry */
+		return -EEXIST;
 
 	/* Assume net, route, all new */
 	LIBCFS_ALLOC(route, sizeof(*route));
@@ -349,7 +348,7 @@ lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway,
 		LIBCFS_FREE(rnet, sizeof(*rnet));
 
 		if (rc == -EHOSTUNREACH) /* gateway is not on a local net */
-			return 0;	/* ignore the route entry */
+			return rc;	/* ignore the route entry */
 		CERROR("Error %d creating route %s %d %s\n", rc,
 		       libcfs_net2str(net), hops,
 		       libcfs_nid2str(gateway));
@@ -396,14 +395,20 @@ lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway,
 	/* -1 for notify or !add_route */
 	lnet_peer_decref_locked(route->lr_gateway);
 	lnet_net_unlock(LNET_LOCK_EX);
+	rc = 0;
 
-	if (!add_route)
+	if (!add_route) {
+		rc = -EEXIST;
 		LIBCFS_FREE(route, sizeof(*route));
+	}
 
 	if (rnet != rnet2)
 		LIBCFS_FREE(rnet, sizeof(*rnet));
 
-	return 0;
+	/* indicate to startup the router checker if configured */
+	wake_up(&the_lnet.ln_rc_waitq);
+
+	return rc;
 }
 
 int
@@ -543,6 +548,38 @@ lnet_destroy_routes(void)
 	lnet_del_route(LNET_NIDNET(LNET_NID_ANY), LNET_NID_ANY);
 }
 
+int lnet_get_rtr_pool_cfg(int idx, struct lnet_ioctl_pool_cfg *pool_cfg)
+{
+	int i, rc = -ENOENT, j;
+
+	if (!the_lnet.ln_rtrpools)
+		return rc;
+
+	for (i = 0; i < LNET_NRBPOOLS; i++) {
+		lnet_rtrbufpool_t *rbp;
+
+		lnet_net_lock(LNET_LOCK_EX);
+		cfs_percpt_for_each(rbp, j, the_lnet.ln_rtrpools) {
+			if (i++ != idx)
+				continue;
+
+			pool_cfg->pl_pools[i].pl_npages = rbp[i].rbp_npages;
+			pool_cfg->pl_pools[i].pl_nbuffers = rbp[i].rbp_nbuffers;
+			pool_cfg->pl_pools[i].pl_credits = rbp[i].rbp_credits;
+			pool_cfg->pl_pools[i].pl_mincredits = rbp[i].rbp_mincredits;
+			rc = 0;
+			break;
+		}
+		lnet_net_unlock(LNET_LOCK_EX);
+	}
+
+	lnet_net_lock(LNET_LOCK_EX);
+	pool_cfg->pl_routing = the_lnet.ln_routing;
+	lnet_net_unlock(LNET_LOCK_EX);
+
+	return rc;
+}
+
 int
 lnet_get_route(int idx, __u32 *net, __u32 *hops,
 	       lnet_nid_t *gateway, __u32 *alive, __u32 *priority)
@@ -570,7 +607,7 @@ lnet_get_route(int idx, __u32 *net, __u32 *hops,
 					*hops     = route->lr_hops;
 					*priority = route->lr_priority;
 					*gateway  = route->lr_gateway->lp_nid;
-					*alive    = route->lr_gateway->lp_alive;
+					*alive = lnet_is_route_alive(route);
 					lnet_net_unlock(cpt);
 					return 0;
 				}
@@ -608,7 +645,7 @@ lnet_parse_rc_info(lnet_rc_data_t *rcd)
 {
 	lnet_ping_info_t *info = rcd->rcd_pinginfo;
 	struct lnet_peer *gw = rcd->rcd_gateway;
-	lnet_route_t *rtr;
+	lnet_route_t *rte;
 
 	if (!gw->lp_alive)
 		return;
@@ -634,12 +671,16 @@ lnet_parse_rc_info(lnet_rc_data_t *rcd)
 	if (!(gw->lp_ping_feats & LNET_PING_FEAT_NI_STATUS))
 		return; /* can't carry NI status info */
 
-	list_for_each_entry(rtr, &gw->lp_routes, lr_gwlist) {
-		int ptl_status = LNET_NI_STATUS_INVALID;
+	list_for_each_entry(rte, &gw->lp_routes, lr_gwlist) {
 		int down = 0;
 		int up = 0;
 		int i;
 
+		if (gw->lp_ping_feats & LNET_PING_FEAT_RTE_DISABLED) {
+			rte->lr_downis = 1;
+			continue;
+		}
+
 		for (i = 0; i < info->pi_nnis && i < LNET_MAX_RTR_NIS; i++) {
 			lnet_ni_status_t *stat = &info->pi_ni[i];
 			lnet_nid_t nid = stat->ns_nid;
@@ -655,24 +696,15 @@ lnet_parse_rc_info(lnet_rc_data_t *rcd)
 				continue;
 
 			if (stat->ns_status == LNET_NI_STATUS_DOWN) {
-				if (LNET_NETTYP(LNET_NIDNET(nid)) != PTLLND)
-					down++;
-				else if (ptl_status != LNET_NI_STATUS_UP)
-					ptl_status = LNET_NI_STATUS_DOWN;
+				down++;
 				continue;
 			}
 
 			if (stat->ns_status == LNET_NI_STATUS_UP) {
-				if (LNET_NIDNET(nid) == rtr->lr_net) {
+				if (LNET_NIDNET(nid) == rte->lr_net) {
 					up = 1;
 					break;
 				}
-				/*
-				 * ptl NIs are considered down only when
-				 * they're all down
-				 */
-				if (LNET_NETTYP(LNET_NIDNET(nid)) == PTLLND)
-					ptl_status = LNET_NI_STATUS_UP;
 				continue;
 			}
 
@@ -683,10 +715,10 @@ lnet_parse_rc_info(lnet_rc_data_t *rcd)
 		}
 
 		if (up) { /* ignore downed NIs if NI for dest network is up */
-			rtr->lr_downis = 0;
+			rte->lr_downis = 0;
 			continue;
 		}
-		rtr->lr_downis = down + (ptl_status == LNET_NI_STATUS_DOWN);
+		rte->lr_downis = down;
 	}
 }
 
@@ -985,7 +1017,7 @@ lnet_ping_router_locked(lnet_peer_t *rtr)
 		lnet_handle_md_t mdh;
 
 		id.nid = rtr->lp_nid;
-		id.pid = LUSTRE_SRV_LNET_PID;
+		id.pid = LNET_PID_LUSTRE;
 		CDEBUG(D_NET, "Check: %s\n", libcfs_id2str(id));
 
 		rtr->lp_ping_notsent   = 1;
@@ -1014,8 +1046,9 @@ lnet_ping_router_locked(lnet_peer_t *rtr)
 int
 lnet_router_checker_start(void)
 {
+	struct task_struct *task;
 	int rc;
-	int eqsz;
+	int eqsz = 0;
 
 	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_SHUTDOWN);
 
@@ -1025,28 +1058,18 @@ lnet_router_checker_start(void)
 		return -EINVAL;
 	}
 
-	if (!the_lnet.ln_routing &&
-	    live_router_check_interval <= 0 &&
-	    dead_router_check_interval <= 0)
-		return 0;
-
 	sema_init(&the_lnet.ln_rc_signal, 0);
-	/*
-	 * EQ size doesn't matter; the callback is guaranteed to get every
-	 * event
-	 */
-	eqsz = 0;
-	rc = LNetEQAlloc(eqsz, lnet_router_checker_event,
-			 &the_lnet.ln_rc_eqh);
+
+	rc = LNetEQAlloc(0, lnet_router_checker_event, &the_lnet.ln_rc_eqh);
 	if (rc) {
 		CERROR("Can't allocate EQ(%d): %d\n", eqsz, rc);
 		return -ENOMEM;
 	}
 
 	the_lnet.ln_rc_state = LNET_RC_STATE_RUNNING;
-	rc = PTR_ERR(kthread_run(lnet_router_checker,
-				 NULL, "router_checker"));
-	if (IS_ERR_VALUE(rc)) {
+	task = kthread_run(lnet_router_checker, NULL, "router_checker");
+	if (IS_ERR(task)) {
+		rc = PTR_ERR(task);
 		CERROR("Can't start router checker thread: %d\n", rc);
 		/* block until event callback signals exit */
 		down(&the_lnet.ln_rc_signal);
@@ -1078,6 +1101,8 @@ lnet_router_checker_stop(void)
 
 	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
 	the_lnet.ln_rc_state = LNET_RC_STATE_STOPPING;
+	/* wakeup the RC thread if it's sleeping */
+	wake_up(&the_lnet.ln_rc_waitq);
 
 	/* block until event callback signals exit */
 	down(&the_lnet.ln_rc_signal);
@@ -1168,6 +1193,33 @@ lnet_prune_rc_data(int wait_unlink)
 	lnet_net_unlock(LNET_LOCK_EX);
 }
 
+/*
+ * This function is called to check if the RC should block indefinitely.
+ * It's called from lnet_router_checker() as well as being passed to
+ * wait_event_interruptible() to avoid the lost wake_up problem.
+ *
+ * When it's called from wait_event_interruptible() it is necessary to
+ * also not sleep if the rc state is not running to avoid a deadlock
+ * when the system is shutting down
+ */
+static inline bool
+lnet_router_checker_active(void)
+{
+	if (the_lnet.ln_rc_state != LNET_RC_STATE_RUNNING)
+		return true;
+
+	/*
+	 * Router Checker thread needs to run when routing is enabled in
+	 * order to call lnet_update_ni_status_locked()
+	 */
+	if (the_lnet.ln_routing)
+		return true;
+
+	return !list_empty(&the_lnet.ln_routers) &&
+		(live_router_check_interval > 0 ||
+		 dead_router_check_interval > 0);
+}
+
 static int
 lnet_router_checker(void *arg)
 {
@@ -1176,8 +1228,6 @@ lnet_router_checker(void *arg)
 
 	cfs_block_allsigs();
 
-	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
-
 	while (the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING) {
 		__u64 version;
 		int cpt;
@@ -1221,12 +1271,20 @@ rescan:
 		 * because kernel counts # active tasks as nr_running
 		 * + nr_uninterruptible.
 		 */
-		set_current_state(TASK_INTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(1));
+		/*
+		 * if there are any routes then wakeup every second.  If
+		 * there are no routes then sleep indefinitely until woken
+		 * up by a user adding a route
+		 */
+		if (!lnet_router_checker_active())
+			wait_event_interruptible(the_lnet.ln_rc_waitq,
+						 lnet_router_checker_active());
+		else
+			wait_event_interruptible_timeout(the_lnet.ln_rc_waitq,
+							 false,
+							 cfs_time_seconds(1));
 	}
 
-	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_STOPPING);
-
 	lnet_prune_rc_data(1); /* wait for UNLINK */
 
 	the_lnet.ln_rc_state = LNET_RC_STATE_SHUTDOWN;
@@ -1235,7 +1293,7 @@ rescan:
 	return 0;
 }
 
-static void
+void
 lnet_destroy_rtrbuf(lnet_rtrbuf_t *rb, int npages)
 {
 	int sz = offsetof(lnet_rtrbuf_t, rb_kiov[npages]);
@@ -1282,67 +1340,119 @@ lnet_new_rtrbuf(lnet_rtrbufpool_t *rbp, int cpt)
 }
 
 static void
-lnet_rtrpool_free_bufs(lnet_rtrbufpool_t *rbp)
+lnet_rtrpool_free_bufs(lnet_rtrbufpool_t *rbp, int cpt)
 {
 	int npages = rbp->rbp_npages;
-	int nbuffers = 0;
+	struct list_head tmp;
 	lnet_rtrbuf_t *rb;
 
 	if (!rbp->rbp_nbuffers) /* not initialized or already freed */
 		return;
 
-	LASSERT(list_empty(&rbp->rbp_msgs));
-	LASSERT(rbp->rbp_credits == rbp->rbp_nbuffers);
+	INIT_LIST_HEAD(&tmp);
 
-	while (!list_empty(&rbp->rbp_bufs)) {
-		LASSERT(rbp->rbp_credits > 0);
+	lnet_net_lock(cpt);
+	lnet_drop_routed_msgs_locked(&rbp->rbp_msgs, cpt);
+	list_splice_init(&rbp->rbp_bufs, &tmp);
+	rbp->rbp_req_nbuffers = 0;
+	rbp->rbp_nbuffers = 0;
+	rbp->rbp_credits = 0;
+	rbp->rbp_mincredits = 0;
+	lnet_net_unlock(cpt);
 
-		rb = list_entry(rbp->rbp_bufs.next,
-				lnet_rtrbuf_t, rb_list);
+	/* Free buffers on the free list. */
+	while (!list_empty(&tmp)) {
+		rb = list_entry(tmp.next, lnet_rtrbuf_t, rb_list);
 		list_del(&rb->rb_list);
 		lnet_destroy_rtrbuf(rb, npages);
-		nbuffers++;
 	}
-
-	LASSERT(rbp->rbp_nbuffers == nbuffers);
-	LASSERT(rbp->rbp_credits == nbuffers);
-
-	rbp->rbp_nbuffers = 0;
-	rbp->rbp_credits = 0;
 }
 
 static int
-lnet_rtrpool_alloc_bufs(lnet_rtrbufpool_t *rbp, int nbufs, int cpt)
+lnet_rtrpool_adjust_bufs(lnet_rtrbufpool_t *rbp, int nbufs, int cpt)
 {
+	struct list_head rb_list;
 	lnet_rtrbuf_t *rb;
-	int i;
+	int num_rb;
+	int num_buffers = 0;
+	int old_req_nbufs;
+	int npages = rbp->rbp_npages;
 
-	if (rbp->rbp_nbuffers) {
-		LASSERT(rbp->rbp_nbuffers == nbufs);
+	lnet_net_lock(cpt);
+	/*
+	 * If we are called for less buffers than already in the pool, we
+	 * just lower the req_nbuffers number and excess buffers will be
+	 * thrown away as they are returned to the free list.  Credits
+	 * then get adjusted as well.
+	 * If we already have enough buffers allocated to serve the
+	 * increase requested, then we can treat that the same way as we
+	 * do the decrease.
+	 */
+	num_rb = nbufs - rbp->rbp_nbuffers;
+	if (nbufs <= rbp->rbp_req_nbuffers || num_rb <= 0) {
+		rbp->rbp_req_nbuffers = nbufs;
+		lnet_net_unlock(cpt);
 		return 0;
 	}
+	/*
+	 * store the older value of rbp_req_nbuffers and then set it to
+	 * the new request to prevent lnet_return_rx_credits_locked() from
+	 * freeing buffers that we need to keep around
+	 */
+	old_req_nbufs = rbp->rbp_req_nbuffers;
+	rbp->rbp_req_nbuffers = nbufs;
+	lnet_net_unlock(cpt);
 
-	for (i = 0; i < nbufs; i++) {
-		rb = lnet_new_rtrbuf(rbp, cpt);
+	INIT_LIST_HEAD(&rb_list);
 
+	/*
+	 * allocate the buffers on a local list first.  If all buffers are
+	 * allocated successfully then join this list to the rbp buffer
+	 * list. If not then free all allocated buffers.
+	 */
+	while (num_rb-- > 0) {
+		rb = lnet_new_rtrbuf(rbp, cpt);
 		if (!rb) {
-			CERROR("Failed to allocate %d router bufs of %d pages\n",
-			       nbufs, rbp->rbp_npages);
-			return -ENOMEM;
-		}
+			CERROR("Failed to allocate %d route bufs of %d pages\n",
+			       nbufs, npages);
+
+			lnet_net_lock(cpt);
+			rbp->rbp_req_nbuffers = old_req_nbufs;
+			lnet_net_unlock(cpt);
 
-		rbp->rbp_nbuffers++;
-		rbp->rbp_credits++;
-		rbp->rbp_mincredits++;
-		list_add(&rb->rb_list, &rbp->rbp_bufs);
+			goto failed;
+		}
 
-		/* No allocation "under fire" */
-		/* Otherwise we'd need code to schedule blocked msgs etc */
-		LASSERT(!the_lnet.ln_routing);
+		list_add(&rb->rb_list, &rb_list);
+		num_buffers++;
 	}
 
-	LASSERT(rbp->rbp_credits == nbufs);
+	lnet_net_lock(cpt);
+
+	list_splice_tail(&rb_list, &rbp->rbp_bufs);
+	rbp->rbp_nbuffers += num_buffers;
+	rbp->rbp_credits += num_buffers;
+	rbp->rbp_mincredits = rbp->rbp_credits;
+	/*
+	 * We need to schedule blocked msg using the newly
+	 * added buffers.
+	 */
+	while (!list_empty(&rbp->rbp_bufs) &&
+	       !list_empty(&rbp->rbp_msgs))
+		lnet_schedule_blocked_locked(rbp);
+
+	lnet_net_unlock(cpt);
+
 	return 0;
+
+failed:
+	while (!list_empty(&rb_list)) {
+		rb = list_entry(rb_list.next, lnet_rtrbuf_t, rb_list);
+		list_del(&rb->rb_list);
+		lnet_destroy_rtrbuf(rb, npages);
+	}
+
+	return -ENOMEM;
 }
 
 static void
@@ -1357,7 +1467,7 @@ lnet_rtrpool_init(lnet_rtrbufpool_t *rbp, int npages)
 }
 
 void
-lnet_rtrpools_free(void)
+lnet_rtrpools_free(int keep_pools)
 {
 	lnet_rtrbufpool_t *rtrp;
 	int i;
@@ -1366,17 +1476,19 @@ lnet_rtrpools_free(void)
 		return;
 
 	cfs_percpt_for_each(rtrp, i, the_lnet.ln_rtrpools) {
-		lnet_rtrpool_free_bufs(&rtrp[0]);
-		lnet_rtrpool_free_bufs(&rtrp[1]);
-		lnet_rtrpool_free_bufs(&rtrp[2]);
+		lnet_rtrpool_free_bufs(&rtrp[LNET_TINY_BUF_IDX], i);
+		lnet_rtrpool_free_bufs(&rtrp[LNET_SMALL_BUF_IDX], i);
+		lnet_rtrpool_free_bufs(&rtrp[LNET_LARGE_BUF_IDX], i);
 	}
 
-	cfs_percpt_free(the_lnet.ln_rtrpools);
-	the_lnet.ln_rtrpools = NULL;
+	if (!keep_pools) {
+		cfs_percpt_free(the_lnet.ln_rtrpools);
+		the_lnet.ln_rtrpools = NULL;
+	}
 }
 
 static int
-lnet_nrb_tiny_calculate(int npages)
+lnet_nrb_tiny_calculate(void)
 {
 	int nrbs = LNET_NRB_TINY;
 
@@ -1395,7 +1507,7 @@ lnet_nrb_tiny_calculate(int npages)
 }
 
 static int
-lnet_nrb_small_calculate(int npages)
+lnet_nrb_small_calculate(void)
 {
 	int nrbs = LNET_NRB_SMALL;
 
@@ -1414,7 +1526,7 @@ lnet_nrb_small_calculate(int npages)
 }
 
 static int
-lnet_nrb_large_calculate(int npages)
+lnet_nrb_large_calculate(void)
 {
 	int nrbs = LNET_NRB_LARGE;
 
@@ -1436,16 +1548,12 @@ int
 lnet_rtrpools_alloc(int im_a_router)
 {
 	lnet_rtrbufpool_t *rtrp;
-	int large_pages;
-	int small_pages = 1;
 	int nrb_tiny;
 	int nrb_small;
 	int nrb_large;
 	int rc;
 	int i;
 
-	large_pages = (LNET_MTU + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-
 	if (!strcmp(forwarding, "")) {
 		/* not set either way */
 		if (!im_a_router)
@@ -1460,15 +1568,15 @@ lnet_rtrpools_alloc(int im_a_router)
 		return -EINVAL;
 	}
 
-	nrb_tiny = lnet_nrb_tiny_calculate(0);
+	nrb_tiny = lnet_nrb_tiny_calculate();
 	if (nrb_tiny < 0)
 		return -EINVAL;
 
-	nrb_small = lnet_nrb_small_calculate(small_pages);
+	nrb_small = lnet_nrb_small_calculate();
 	if (nrb_small < 0)
 		return -EINVAL;
 
-	nrb_large = lnet_nrb_large_calculate(large_pages);
+	nrb_large = lnet_nrb_large_calculate();
 	if (nrb_large < 0)
 		return -EINVAL;
 
@@ -1482,18 +1590,23 @@ lnet_rtrpools_alloc(int im_a_router)
 	}
 
 	cfs_percpt_for_each(rtrp, i, the_lnet.ln_rtrpools) {
-		lnet_rtrpool_init(&rtrp[0], 0);
-		rc = lnet_rtrpool_alloc_bufs(&rtrp[0], nrb_tiny, i);
+		lnet_rtrpool_init(&rtrp[LNET_TINY_BUF_IDX], 0);
+		rc = lnet_rtrpool_adjust_bufs(&rtrp[LNET_TINY_BUF_IDX],
+					      nrb_tiny, i);
 		if (rc)
 			goto failed;
 
-		lnet_rtrpool_init(&rtrp[1], small_pages);
-		rc = lnet_rtrpool_alloc_bufs(&rtrp[1], nrb_small, i);
+		lnet_rtrpool_init(&rtrp[LNET_SMALL_BUF_IDX],
+				  LNET_NRB_SMALL_PAGES);
+		rc = lnet_rtrpool_adjust_bufs(&rtrp[LNET_SMALL_BUF_IDX],
+					      nrb_small, i);
 		if (rc)
 			goto failed;
 
-		lnet_rtrpool_init(&rtrp[2], large_pages);
-		rc = lnet_rtrpool_alloc_bufs(&rtrp[2], nrb_large, i);
+		lnet_rtrpool_init(&rtrp[LNET_LARGE_BUF_IDX],
+				  LNET_NRB_LARGE_PAGES);
+		rc = lnet_rtrpool_adjust_bufs(&rtrp[LNET_LARGE_BUF_IDX],
+					      nrb_large, i);
 		if (rc)
 			goto failed;
 	}
@@ -1505,10 +1618,118 @@ lnet_rtrpools_alloc(int im_a_router)
 	return 0;
 
  failed:
-	lnet_rtrpools_free();
+	lnet_rtrpools_free(0);
 	return rc;
 }
 
+static int
+lnet_rtrpools_adjust_helper(int tiny, int small, int large)
+{
+	int nrb = 0;
+	int rc = 0;
+	int i;
+	lnet_rtrbufpool_t *rtrp;
+
+	/*
+	 * If the provided values for each buffer pool are different than the
+	 * configured values, we need to take action.
+	 */
+	if (tiny >= 0) {
+		tiny_router_buffers = tiny;
+		nrb = lnet_nrb_tiny_calculate();
+		cfs_percpt_for_each(rtrp, i, the_lnet.ln_rtrpools) {
+			rc = lnet_rtrpool_adjust_bufs(&rtrp[LNET_TINY_BUF_IDX],
+						      nrb, i);
+			if (rc)
+				return rc;
+		}
+	}
+	if (small >= 0) {
+		small_router_buffers = small;
+		nrb = lnet_nrb_small_calculate();
+		cfs_percpt_for_each(rtrp, i, the_lnet.ln_rtrpools) {
+			rc = lnet_rtrpool_adjust_bufs(&rtrp[LNET_SMALL_BUF_IDX],
+						      nrb, i);
+			if (rc)
+				return rc;
+		}
+	}
+	if (large >= 0) {
+		large_router_buffers = large;
+		nrb = lnet_nrb_large_calculate();
+		cfs_percpt_for_each(rtrp, i, the_lnet.ln_rtrpools) {
+			rc = lnet_rtrpool_adjust_bufs(&rtrp[LNET_LARGE_BUF_IDX],
+						      nrb, i);
+			if (rc)
+				return rc;
+		}
+	}
+
+	return 0;
+}
+
+int
+lnet_rtrpools_adjust(int tiny, int small, int large)
+{
+	/*
+	 * this function doesn't revert the changes if adding new buffers
+	 * failed.  It's up to the user space caller to revert the
+	 * changes.
+	 */
+	if (!the_lnet.ln_routing)
+		return 0;
+
+	return lnet_rtrpools_adjust_helper(tiny, small, large);
+}
+
+int
+lnet_rtrpools_enable(void)
+{
+	int rc;
+
+	if (the_lnet.ln_routing)
+		return 0;
+
+	if (!the_lnet.ln_rtrpools)
+		/*
+		 * If routing is turned off, and we have never
+		 * initialized the pools before, just call the
+		 * standard buffer pool allocation routine as
+		 * if we are just configuring this for the first
+		 * time.
+		 */
+		return lnet_rtrpools_alloc(1);
+
+	rc = lnet_rtrpools_adjust_helper(0, 0, 0);
+	if (rc)
+		return rc;
+
+	lnet_net_lock(LNET_LOCK_EX);
+	the_lnet.ln_routing = 1;
+
+	the_lnet.ln_ping_info->pi_features &= ~LNET_PING_FEAT_RTE_DISABLED;
+	lnet_net_unlock(LNET_LOCK_EX);
+
+	return 0;
+}
+
+void
+lnet_rtrpools_disable(void)
+{
+	if (!the_lnet.ln_routing)
+		return;
+
+	lnet_net_lock(LNET_LOCK_EX);
+	the_lnet.ln_routing = 0;
+	the_lnet.ln_ping_info->pi_features |= LNET_PING_FEAT_RTE_DISABLED;
+
+	tiny_router_buffers = 0;
+	small_router_buffers = 0;
+	large_router_buffers = 0;
+	lnet_net_unlock(LNET_LOCK_EX);
+	lnet_rtrpools_free(1);
+}
+
 int
 lnet_notify(lnet_ni_t *ni, lnet_nid_t nid, int alive, unsigned long when)
 {
diff --git a/drivers/staging/lustre/lnet/lnet/router_proc.c b/drivers/staging/lustre/lnet/lnet/router_proc.c
index a7aaf0c..fc643df 100644
--- a/drivers/staging/lustre/lnet/lnet/router_proc.c
+++ b/drivers/staging/lustre/lnet/lnet/router_proc.c
@@ -15,10 +15,6 @@
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  */
 
 #define DEBUG_SUBSYSTEM S_LNET
@@ -242,7 +238,7 @@ static int proc_lnet_routes(struct ctl_table *table, int write,
 			unsigned int hops = route->lr_hops;
 			unsigned int priority = route->lr_priority;
 			lnet_nid_t nid = route->lr_gateway->lp_nid;
-			int alive = route->lr_gateway->lp_alive;
+			int alive = lnet_is_route_alive(route);
 
 			s += snprintf(s, tmpstr + tmpsiz - s,
 				      "%-8s %4u %8u %7s %s\n",
@@ -804,8 +800,6 @@ static struct lnet_portal_rotors	portal_rotors[] = {
 	},
 };
 
-extern int portal_rotor;
-
 static int __proc_lnet_portal_rotor(void *data, int write,
 				    loff_t pos, void __user *buffer, int nob)
 {
diff --git a/drivers/staging/lustre/lnet/selftest/conctl.c b/drivers/staging/lustre/lnet/selftest/conctl.c
index 210e24e..90b7771 100644
--- a/drivers/staging/lustre/lnet/selftest/conctl.c
+++ b/drivers/staging/lustre/lnet/selftest/conctl.c
@@ -801,15 +801,20 @@ out:
 }
 
 int
-lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_data *data)
+lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_hdr *hdr)
 {
 	char   *buf;
-	int     opc = data->ioc_u32[0];
+	struct libcfs_ioctl_data *data;
+	int     opc;
 	int     rc;
 
 	if (cmd != IOC_LIBCFS_LNETST)
 		return -EINVAL;
 
+	data = container_of(hdr, struct libcfs_ioctl_data, ioc_hdr);
+
+	opc = data->ioc_u32[0];
+
 	if (data->ioc_plen1 > PAGE_CACHE_SIZE)
 		return -EINVAL;
 
diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c
index 54fb1ab..e8ca1bf 100644
--- a/drivers/staging/lustre/lnet/selftest/console.c
+++ b/drivers/staging/lustre/lnet/selftest/console.c
@@ -58,7 +58,7 @@ do {							\
 	(p)->nle_nnode++;				\
 } while (0)
 
-lstcon_session_t console_session;
+struct lstcon_session console_session;
 
 static void
 lstcon_node_get(lstcon_node_t *nd)
@@ -1693,8 +1693,6 @@ lstcon_new_session_id(lst_sid_t *sid)
 	sid->ses_stamp = cfs_time_current();
 }
 
-extern srpc_service_t lstcon_acceptor_service;
-
 int
 lstcon_session_new(char *name, int key, unsigned feats,
 		   int timeout, int force, lst_sid_t __user *sid_up)
@@ -1973,7 +1971,7 @@ out:
 	return rc;
 }
 
-srpc_service_t lstcon_acceptor_service;
+static srpc_service_t lstcon_acceptor_service;
 static void lstcon_init_acceptor_service(void)
 {
 	/* initialize selftest console acceptor service table */
@@ -1983,7 +1981,7 @@ static void lstcon_init_acceptor_service(void)
 	lstcon_acceptor_service.sv_wi_total = SFW_FRWK_WI_MAX;
 }
 
-extern int lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_data *data);
+extern int lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_hdr *hdr);
 
 static DECLARE_IOCTL_HANDLER(lstcon_ioctl_handler, lstcon_ioctl_entry);
 
@@ -1994,7 +1992,7 @@ lstcon_console_init(void)
 	int i;
 	int rc;
 
-	memset(&console_session, 0, sizeof(lstcon_session_t));
+	memset(&console_session, 0, sizeof(struct lstcon_session));
 
 	console_session.ses_id		  = LST_INVALID_SID;
 	console_session.ses_state	  = LST_SESSION_NONE;
diff --git a/drivers/staging/lustre/lnet/selftest/console.h b/drivers/staging/lustre/lnet/selftest/console.h
index 5651b08..c9d1081 100644
--- a/drivers/staging/lustre/lnet/selftest/console.h
+++ b/drivers/staging/lustre/lnet/selftest/console.h
@@ -135,7 +135,7 @@ typedef struct lstcon_test {
 
 #define LST_CONSOLE_TIMEOUT 300	     /* default console timeout */
 
-typedef struct {
+struct lstcon_session {
 	struct mutex        ses_mutex;        /* only 1 thread in session */
 	lst_sid_t           ses_id;           /* global session id */
 	int                 ses_key;          /* local session key */
@@ -165,9 +165,9 @@ typedef struct {
 	spinlock_t          ses_rpc_lock;     /* serialize */
 	atomic_t            ses_rpc_counter;  /* # of initialized RPCs */
 	struct list_head    ses_rpc_freelist; /* idle console rpc */
-} lstcon_session_t; /* session descriptor */
+}; /* session descriptor */
 
-extern lstcon_session_t	 console_session;
+extern struct lstcon_session	 console_session;
 
 static inline lstcon_trans_stat_t *
 lstcon_trans_stat(void)
@@ -184,7 +184,6 @@ lstcon_id2hash(lnet_process_id_t id, struct list_head *hash)
 }
 
 int lstcon_console_init(void);
-int lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_data *data);
 int lstcon_console_fini(void);
 int lstcon_session_match(lst_sid_t sid);
 int lstcon_session_new(char *name, int key, unsigned version,
diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c
index 7eca046..3bbc720 100644
--- a/drivers/staging/lustre/lnet/selftest/framework.c
+++ b/drivers/staging/lustre/lnet/selftest/framework.c
@@ -1629,16 +1629,6 @@ static srpc_service_t sfw_services[] = {
 	}
 };
 
-extern sfw_test_client_ops_t ping_test_client;
-extern srpc_service_t	ping_test_service;
-extern void ping_init_test_client(void);
-extern void ping_init_test_service(void);
-
-extern sfw_test_client_ops_t brw_test_client;
-extern srpc_service_t	brw_test_service;
-extern void brw_init_test_client(void);
-extern void brw_init_test_service(void);
-
 int
 sfw_startup(void)
 {
diff --git a/drivers/staging/lustre/lnet/selftest/module.c b/drivers/staging/lustre/lnet/selftest/module.c
index c4bf442..cbb7884 100644
--- a/drivers/staging/lustre/lnet/selftest/module.c
+++ b/drivers/staging/lustre/lnet/selftest/module.c
@@ -37,6 +37,7 @@
 #define DEBUG_SUBSYSTEM S_LNET
 
 #include "selftest.h"
+#include "console.h"
 
 enum {
 	LST_INIT_NONE = 0,
@@ -47,9 +48,6 @@ enum {
 	LST_INIT_CONSOLE
 };
 
-extern int lstcon_console_init(void);
-extern int lstcon_console_fini(void);
-
 static int lst_init_step = LST_INIT_NONE;
 
 struct cfs_wi_sched *lst_sched_serial;
diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c
index f95fd9b..1b76933 100644
--- a/drivers/staging/lustre/lnet/selftest/rpc.c
+++ b/drivers/staging/lustre/lnet/selftest/rpc.c
@@ -1097,7 +1097,7 @@ srpc_client_rpc_expired(void *data)
 	spin_unlock(&srpc_data.rpc_glock);
 }
 
-inline void
+static void
 srpc_add_client_rpc_timer(srpc_client_rpc_t *rpc)
 {
 	stt_timer_t *timer = &rpc->crpc_timer;
@@ -1612,7 +1612,7 @@ srpc_startup(void)
 
 	srpc_data.rpc_state = SRPC_STATE_NONE;
 
-	rc = LNetNIInit(LUSTRE_SRV_LNET_PID);
+	rc = LNetNIInit(LNET_PID_LUSTRE);
 	if (rc < 0) {
 		CERROR("LNetNIInit() has failed: %d\n", rc);
 		return rc;
diff --git a/drivers/staging/lustre/lustre/fid/fid_request.c b/drivers/staging/lustre/lustre/fid/fid_request.c
index ff8f38d..70400aa 100644
--- a/drivers/staging/lustre/lustre/fid/fid_request.c
+++ b/drivers/staging/lustre/lustre/fid/fid_request.c
@@ -68,7 +68,7 @@ static int seq_client_rpc(struct lu_client_seq *seq,
 
 	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_SEQ_QUERY,
 					LUSTRE_MDS_VERSION, SEQ_QUERY);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	/* Init operation code */
@@ -95,7 +95,8 @@ static int seq_client_rpc(struct lu_client_seq *seq,
 		 * precreating objects on this OST), and it will send the
 		 * request to MDT0 here, so we can not keep resending the
 		 * request here, otherwise if MDT0 is failed(umounted),
-		 * it can not release the export of MDT0 */
+		 * it can not release the export of MDT0
+		 */
 		if (seq->lcs_type == LUSTRE_SEQ_DATA)
 			req->rq_no_delay = req->rq_no_resend = 1;
 		debug_mask = D_CONSOLE;
@@ -152,7 +153,8 @@ static int seq_client_alloc_meta(const struct lu_env *env,
 		/* If meta server return -EINPROGRESS or EAGAIN,
 		 * it means meta server might not be ready to
 		 * allocate super sequence from sequence controller
-		 * (MDT0)yet */
+		 * (MDT0)yet
+		 */
 		rc = seq_client_rpc(seq, &seq->lcs_space,
 				    SEQ_ALLOC_META, "meta");
 	} while (rc == -EINPROGRESS || rc == -EAGAIN);
@@ -226,8 +228,8 @@ int seq_client_alloc_fid(const struct lu_env *env,
 	wait_queue_t link;
 	int rc;
 
-	LASSERT(seq != NULL);
-	LASSERT(fid != NULL);
+	LASSERT(seq);
+	LASSERT(fid);
 
 	init_waitqueue_entry(&link, current);
 	mutex_lock(&seq->lcs_mutex);
@@ -292,7 +294,7 @@ void seq_client_flush(struct lu_client_seq *seq)
 {
 	wait_queue_t link;
 
-	LASSERT(seq != NULL);
+	LASSERT(seq);
 	init_waitqueue_entry(&link, current);
 	mutex_lock(&seq->lcs_mutex);
 
@@ -375,8 +377,8 @@ static int seq_client_init(struct lu_client_seq *seq,
 {
 	int rc;
 
-	LASSERT(seq != NULL);
-	LASSERT(prefix != NULL);
+	LASSERT(seq);
+	LASSERT(prefix);
 
 	seq->lcs_type = type;
 
@@ -438,7 +440,7 @@ int client_fid_fini(struct obd_device *obd)
 {
 	struct client_obd *cli = &obd->u.cli;
 
-	if (cli->cl_seq != NULL) {
+	if (cli->cl_seq) {
 		seq_client_fini(cli->cl_seq);
 		kfree(cli->cl_seq);
 		cli->cl_seq = NULL;
diff --git a/drivers/staging/lustre/lustre/fid/lproc_fid.c b/drivers/staging/lustre/lustre/fid/lproc_fid.c
index 0320b6e..1f0e786 100644
--- a/drivers/staging/lustre/lustre/fid/lproc_fid.c
+++ b/drivers/staging/lustre/lustre/fid/lproc_fid.c
@@ -66,7 +66,7 @@ ldebugfs_fid_write_common(const char __user *buffer, size_t count,
 	int rc;
 	char kernbuf[MAX_FID_RANGE_STRLEN];
 
-	LASSERT(range != NULL);
+	LASSERT(range);
 
 	if (count >= sizeof(kernbuf))
 		return -EINVAL;
@@ -104,7 +104,6 @@ ldebugfs_fid_space_seq_write(struct file *file,
 	int rc;
 
 	seq = ((struct seq_file *)file->private_data)->private;
-	LASSERT(seq != NULL);
 
 	mutex_lock(&seq->lcs_mutex);
 	rc = ldebugfs_fid_write_common(buffer, count, &seq->lcs_space);
@@ -124,8 +123,6 @@ ldebugfs_fid_space_seq_show(struct seq_file *m, void *unused)
 {
 	struct lu_client_seq *seq = (struct lu_client_seq *)m->private;
 
-	LASSERT(seq != NULL);
-
 	mutex_lock(&seq->lcs_mutex);
 	seq_printf(m, "[%#llx - %#llx]:%x:%s\n", PRANGE(&seq->lcs_space));
 	mutex_unlock(&seq->lcs_mutex);
@@ -143,7 +140,6 @@ ldebugfs_fid_width_seq_write(struct file *file,
 	int rc, val;
 
 	seq = ((struct seq_file *)file->private_data)->private;
-	LASSERT(seq != NULL);
 
 	rc = lprocfs_write_helper(buffer, count, &val);
 	if (rc)
@@ -172,8 +168,6 @@ ldebugfs_fid_width_seq_show(struct seq_file *m, void *unused)
 {
 	struct lu_client_seq *seq = (struct lu_client_seq *)m->private;
 
-	LASSERT(seq != NULL);
-
 	mutex_lock(&seq->lcs_mutex);
 	seq_printf(m, "%llu\n", seq->lcs_width);
 	mutex_unlock(&seq->lcs_mutex);
@@ -186,8 +180,6 @@ ldebugfs_fid_fid_seq_show(struct seq_file *m, void *unused)
 {
 	struct lu_client_seq *seq = (struct lu_client_seq *)m->private;
 
-	LASSERT(seq != NULL);
-
 	mutex_lock(&seq->lcs_mutex);
 	seq_printf(m, DFID "\n", PFID(&seq->lcs_fid));
 	mutex_unlock(&seq->lcs_mutex);
@@ -201,9 +193,7 @@ ldebugfs_fid_server_seq_show(struct seq_file *m, void *unused)
 	struct lu_client_seq *seq = (struct lu_client_seq *)m->private;
 	struct client_obd *cli;
 
-	LASSERT(seq != NULL);
-
-	if (seq->lcs_exp != NULL) {
+	if (seq->lcs_exp) {
 		cli = &seq->lcs_exp->exp_obd->u.cli;
 		seq_printf(m, "%s\n", cli->cl_target_uuid.uuid);
 	}
diff --git a/drivers/staging/lustre/lustre/fld/fld_cache.c b/drivers/staging/lustre/lustre/fld/fld_cache.c
index d9459e5..2b09b76 100644
--- a/drivers/staging/lustre/lustre/fld/fld_cache.c
+++ b/drivers/staging/lustre/lustre/fld/fld_cache.c
@@ -65,7 +65,7 @@ struct fld_cache *fld_cache_init(const char *name,
 {
 	struct fld_cache *cache;
 
-	LASSERT(name != NULL);
+	LASSERT(name);
 	LASSERT(cache_threshold < cache_size);
 
 	cache = kzalloc(sizeof(*cache), GFP_NOFS);
@@ -100,7 +100,7 @@ void fld_cache_fini(struct fld_cache *cache)
 {
 	__u64 pct;
 
-	LASSERT(cache != NULL);
+	LASSERT(cache);
 	fld_cache_flush(cache);
 
 	if (cache->fci_stat.fst_count > 0) {
@@ -183,7 +183,8 @@ restart_fixup:
 			}
 
 			/* we could have overlap over next
-			 * range too. better restart. */
+			 * range too. better restart.
+			 */
 			goto restart_fixup;
 		}
 
@@ -218,8 +219,6 @@ static int fld_cache_shrink(struct fld_cache *cache)
 	struct list_head *curr;
 	int num = 0;
 
-	LASSERT(cache != NULL);
-
 	if (cache->fci_cache_count < cache->fci_cache_size)
 		return 0;
 
@@ -304,7 +303,8 @@ static void fld_cache_overlap_handle(struct fld_cache *cache,
 	const u32 mdt = range->lsr_index;
 
 	/* this is overlap case, these case are checking overlapping with
-	 * prev range only. fixup will handle overlapping with next range. */
+	 * prev range only. fixup will handle overlapping with next range.
+	 */
 
 	if (f_curr->fce_range.lsr_index == mdt) {
 		f_curr->fce_range.lsr_start = min(f_curr->fce_range.lsr_start,
@@ -319,7 +319,8 @@ static void fld_cache_overlap_handle(struct fld_cache *cache,
 	} else if (new_start <= f_curr->fce_range.lsr_start &&
 			f_curr->fce_range.lsr_end <= new_end) {
 		/* case 1: new range completely overshadowed existing range.
-		 *	 e.g. whole range migrated. update fld cache entry */
+		 *	 e.g. whole range migrated. update fld cache entry
+		 */
 
 		f_curr->fce_range = *range;
 		kfree(f_new);
@@ -414,7 +415,7 @@ static int fld_cache_insert_nolock(struct fld_cache *cache,
 		}
 	}
 
-	if (prev == NULL)
+	if (!prev)
 		prev = head;
 
 	CDEBUG(D_INFO, "insert range "DRANGE"\n", PRANGE(&f_new->fce_range));
@@ -499,7 +500,7 @@ int fld_cache_lookup(struct fld_cache *cache,
 	cache->fci_stat.fst_count++;
 	list_for_each_entry(flde, head, fce_list) {
 		if (flde->fce_range.lsr_start > seq) {
-			if (prev != NULL)
+			if (prev)
 				*range = prev->fce_range;
 			break;
 		}
diff --git a/drivers/staging/lustre/lustre/fld/fld_internal.h b/drivers/staging/lustre/lustre/fld/fld_internal.h
index 12eb164..e8a3caf 100644
--- a/drivers/staging/lustre/lustre/fld/fld_internal.h
+++ b/drivers/staging/lustre/lustre/fld/fld_internal.h
@@ -58,22 +58,16 @@ struct fld_stats {
 	__u64   fst_inflight;
 };
 
-typedef int (*fld_hash_func_t) (struct lu_client_fld *, __u64);
-
-typedef struct lu_fld_target *
-(*fld_scan_func_t) (struct lu_client_fld *, __u64);
-
 struct lu_fld_hash {
 	const char	      *fh_name;
-	fld_hash_func_t	  fh_hash_func;
-	fld_scan_func_t	  fh_scan_func;
+	int (*fh_hash_func)(struct lu_client_fld *, __u64);
+	struct lu_fld_target *(*fh_scan_func)(struct lu_client_fld *, __u64);
 };
 
 struct fld_cache_entry {
 	struct list_head	       fce_lru;
 	struct list_head	       fce_list;
-	/**
-	 * fld cache entries are sorted on range->lsr_start field. */
+	/** fld cache entries are sorted on range->lsr_start field. */
 	struct lu_seq_range      fce_range;
 };
 
@@ -84,32 +78,25 @@ struct fld_cache {
 	 */
 	rwlock_t		 fci_lock;
 
-	/**
-	 * Cache shrink threshold */
+	/** Cache shrink threshold */
 	int		      fci_threshold;
 
-	/**
-	 * Preferred number of cached entries */
+	/** Preferred number of cached entries */
 	int		      fci_cache_size;
 
-	/**
-	 * Current number of cached entries. Protected by \a fci_lock */
+	/** Current number of cached entries. Protected by \a fci_lock */
 	int		      fci_cache_count;
 
-	/**
-	 * LRU list fld entries. */
+	/** LRU list fld entries. */
 	struct list_head	       fci_lru;
 
-	/**
-	 * sorted fld entries. */
+	/** sorted fld entries. */
 	struct list_head	       fci_entries_head;
 
-	/**
-	 * Cache statistics. */
+	/** Cache statistics. */
 	struct fld_stats	 fci_stat;
 
-	/**
-	 * Cache name used for debug and messages. */
+	/** Cache name used for debug and messages. */
 	char		     fci_name[LUSTRE_MDT_MAXNAMELEN];
 	unsigned int		 fci_no_shrink:1;
 };
@@ -169,7 +156,7 @@ struct fld_cache_entry
 static inline const char *
 fld_target_name(struct lu_fld_target *tar)
 {
-	if (tar->ft_srv != NULL)
+	if (tar->ft_srv)
 		return tar->ft_srv->lsf_name;
 
 	return (const char *)tar->ft_exp->exp_obd->obd_name;
diff --git a/drivers/staging/lustre/lustre/fld/fld_request.c b/drivers/staging/lustre/lustre/fld/fld_request.c
index d92c01b..b50a57b 100644
--- a/drivers/staging/lustre/lustre/fld/fld_request.c
+++ b/drivers/staging/lustre/lustre/fld/fld_request.c
@@ -58,7 +58,8 @@
 #include "fld_internal.h"
 
 /* TODO: these 3 functions are copies of flow-control code from mdc_lib.c
- * It should be common thing. The same about mdc RPC lock */
+ * It should be common thing. The same about mdc RPC lock
+ */
 static int fld_req_avail(struct client_obd *cli, struct mdc_cache_waiter *mcw)
 {
 	int rc;
@@ -124,7 +125,8 @@ fld_rrb_scan(struct lu_client_fld *fld, u64 seq)
 	 * it should go to index 0 directly, instead of calculating
 	 * hash again, and also if other MDTs is not being connected,
 	 * the fld lookup requests(for seq on MDT0) should not be
-	 * blocked because of other MDTs */
+	 * blocked because of other MDTs
+	 */
 	if (fid_seq_is_norm(seq))
 		hash = fld_rrb_hash(fld, seq);
 	else
@@ -139,7 +141,8 @@ again:
 	if (hash != 0) {
 		/* It is possible the remote target(MDT) are not connected to
 		 * with client yet, so we will refer this to MDT0, which should
-		 * be connected during mount */
+		 * be connected during mount
+		 */
 		hash = 0;
 		goto again;
 	}
@@ -148,9 +151,9 @@ again:
 		fld->lcf_name, hash, seq, fld->lcf_count);
 
 	list_for_each_entry(target, &fld->lcf_targets, ft_chain) {
-		const char *srv_name = target->ft_srv != NULL  ?
+		const char *srv_name = target->ft_srv ?
 			target->ft_srv->lsf_name : "<null>";
-		const char *exp_name = target->ft_exp != NULL ?
+		const char *exp_name = target->ft_exp ?
 			(char *)target->ft_exp->exp_obd->obd_uuid.uuid :
 			"<null>";
 
@@ -183,13 +186,13 @@ fld_client_get_target(struct lu_client_fld *fld, u64 seq)
 {
 	struct lu_fld_target *target;
 
-	LASSERT(fld->lcf_hash != NULL);
+	LASSERT(fld->lcf_hash);
 
 	spin_lock(&fld->lcf_lock);
 	target = fld->lcf_hash->fh_scan_func(fld, seq);
 	spin_unlock(&fld->lcf_lock);
 
-	if (target != NULL) {
+	if (target) {
 		CDEBUG(D_INFO, "%s: Found target (idx %llu) by seq %#llx\n",
 		       fld->lcf_name, target->ft_idx, seq);
 	}
@@ -207,10 +210,10 @@ int fld_client_add_target(struct lu_client_fld *fld,
 	const char *name;
 	struct lu_fld_target *target, *tmp;
 
-	LASSERT(tar != NULL);
+	LASSERT(tar);
 	name = fld_target_name(tar);
-	LASSERT(name != NULL);
-	LASSERT(tar->ft_srv != NULL || tar->ft_exp != NULL);
+	LASSERT(name);
+	LASSERT(tar->ft_srv || tar->ft_exp);
 
 	if (fld->lcf_flags != LUSTRE_FLD_INIT) {
 		CERROR("%s: Attempt to add target %s (idx %llu) on fly - skip it\n",
@@ -236,7 +239,7 @@ int fld_client_add_target(struct lu_client_fld *fld,
 	}
 
 	target->ft_exp = tar->ft_exp;
-	if (target->ft_exp != NULL)
+	if (target->ft_exp)
 		class_export_get(target->ft_exp);
 	target->ft_srv = tar->ft_srv;
 	target->ft_idx = tar->ft_idx;
@@ -264,7 +267,7 @@ int fld_client_del_target(struct lu_client_fld *fld, __u64 idx)
 			list_del(&target->ft_chain);
 			spin_unlock(&fld->lcf_lock);
 
-			if (target->ft_exp != NULL)
+			if (target->ft_exp)
 				class_export_put(target->ft_exp);
 
 			kfree(target);
@@ -326,8 +329,6 @@ int fld_client_init(struct lu_client_fld *fld,
 	int cache_size, cache_threshold;
 	int rc;
 
-	LASSERT(fld != NULL);
-
 	snprintf(fld->lcf_name, sizeof(fld->lcf_name),
 		 "cli-%s", prefix);
 
@@ -379,13 +380,13 @@ void fld_client_fini(struct lu_client_fld *fld)
 				     &fld->lcf_targets, ft_chain) {
 		fld->lcf_count--;
 		list_del(&target->ft_chain);
-		if (target->ft_exp != NULL)
+		if (target->ft_exp)
 			class_export_put(target->ft_exp);
 		kfree(target);
 	}
 	spin_unlock(&fld->lcf_lock);
 
-	if (fld->lcf_cache != NULL) {
+	if (fld->lcf_cache) {
 		if (!IS_ERR(fld->lcf_cache))
 			fld_cache_fini(fld->lcf_cache);
 		fld->lcf_cache = NULL;
@@ -402,12 +403,12 @@ int fld_client_rpc(struct obd_export *exp,
 	int		    rc;
 	struct obd_import     *imp;
 
-	LASSERT(exp != NULL);
+	LASSERT(exp);
 
 	imp = class_exp2cliimp(exp);
 	req = ptlrpc_request_alloc_pack(imp, &RQF_FLD_QUERY, LUSTRE_MDS_VERSION,
 					FLD_QUERY);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	op = req_capsule_client_get(&req->rq_pill, &RMF_FLD_OPC);
@@ -436,7 +437,7 @@ int fld_client_rpc(struct obd_export *exp,
 		goto out_req;
 
 	prange = req_capsule_server_get(&req->rq_pill, &RMF_FLD_MDFLD);
-	if (prange == NULL) {
+	if (!prange) {
 		rc = -EFAULT;
 		goto out_req;
 	}
@@ -463,7 +464,7 @@ int fld_client_lookup(struct lu_client_fld *fld, u64 seq, u32 *mds,
 
 	/* Can not find it in the cache */
 	target = fld_client_get_target(fld, seq);
-	LASSERT(target != NULL);
+	LASSERT(target);
 
 	CDEBUG(D_INFO, "%s: Lookup fld entry (seq: %#llx) on target %s (idx %llu)\n",
 			fld->lcf_name, seq, fld_target_name(target), target->ft_idx);
diff --git a/drivers/staging/lustre/lustre/fld/lproc_fld.c b/drivers/staging/lustre/lustre/fld/lproc_fld.c
index 41ceaa8..da31281 100644
--- a/drivers/staging/lustre/lustre/fld/lproc_fld.c
+++ b/drivers/staging/lustre/lustre/fld/lproc_fld.c
@@ -60,8 +60,6 @@ fld_debugfs_targets_seq_show(struct seq_file *m, void *unused)
 	struct lu_client_fld *fld = (struct lu_client_fld *)m->private;
 	struct lu_fld_target *target;
 
-	LASSERT(fld != NULL);
-
 	spin_lock(&fld->lcf_lock);
 	list_for_each_entry(target,
 				&fld->lcf_targets, ft_chain)
@@ -76,8 +74,6 @@ fld_debugfs_hash_seq_show(struct seq_file *m, void *unused)
 {
 	struct lu_client_fld *fld = (struct lu_client_fld *)m->private;
 
-	LASSERT(fld != NULL);
-
 	spin_lock(&fld->lcf_lock);
 	seq_printf(m, "%s\n", fld->lcf_hash->fh_name);
 	spin_unlock(&fld->lcf_lock);
@@ -102,9 +98,8 @@ fld_debugfs_hash_seq_write(struct file *file,
 		return -EFAULT;
 
 	fld = ((struct seq_file *)file->private_data)->private;
-	LASSERT(fld != NULL);
 
-	for (i = 0; fld_hash[i].fh_name != NULL; i++) {
+	for (i = 0; fld_hash[i].fh_name; i++) {
 		if (count != strlen(fld_hash[i].fh_name))
 			continue;
 
@@ -114,7 +109,7 @@ fld_debugfs_hash_seq_write(struct file *file,
 		}
 	}
 
-	if (hash != NULL) {
+	if (hash) {
 		spin_lock(&fld->lcf_lock);
 		fld->lcf_hash = hash;
 		spin_unlock(&fld->lcf_lock);
@@ -132,8 +127,6 @@ fld_debugfs_cache_flush_write(struct file *file, const char __user *buffer,
 {
 	struct lu_client_fld *fld = file->private_data;
 
-	LASSERT(fld != NULL);
-
 	fld_cache_flush(fld->lcf_cache);
 
 	CDEBUG(D_INFO, "%s: Lookup cache is flushed\n", fld->lcf_name);
diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h
index bd7acc2..2a77ea2f8 100644
--- a/drivers/staging/lustre/lustre/include/cl_object.h
+++ b/drivers/staging/lustre/lustre/include/cl_object.h
@@ -157,7 +157,8 @@ struct cl_device {
 };
 
 /** \addtogroup cl_object cl_object
- * @{ */
+ * @{
+ */
 /**
  * "Data attributes" of cl_object. Data attributes can be updated
  * independently for a sub-object, and top-object's attributes are calculated
@@ -288,13 +289,14 @@ struct cl_object_conf {
 
 enum {
 	/** configure layout, set up a new stripe, must be called while
-	 * holding layout lock. */
+	 * holding layout lock.
+	 */
 	OBJECT_CONF_SET = 0,
 	/** invalidate the current stripe configuration due to losing
-	 * layout lock. */
+	 * layout lock.
+	 */
 	OBJECT_CONF_INVALIDATE = 1,
-	/** wait for old layout to go away so that new layout can be
-	 * set up. */
+	/** wait for old layout to go away so that new layout can be set up. */
 	OBJECT_CONF_WAIT = 2
 };
 
@@ -393,7 +395,8 @@ struct cl_object_operations {
  */
 struct cl_object_header {
 	/** Standard lu_object_header. cl_object::co_lu::lo_header points
-	 * here. */
+	 * here.
+	 */
 	struct lu_object_header  coh_lu;
 	/** \name locks
 	 * \todo XXX move locks below to the separate cache-lines, they are
@@ -464,7 +467,8 @@ struct cl_object_header {
 #define CL_PAGE_EOF ((pgoff_t)~0ull)
 
 /** \addtogroup cl_page cl_page
- * @{ */
+ * @{
+ */
 
 /** \struct cl_page
  * Layered client page.
@@ -687,12 +691,14 @@ enum cl_page_state {
 
 enum cl_page_type {
 	/** Host page, the page is from the host inode which the cl_page
-	 * belongs to. */
+	 * belongs to.
+	 */
 	CPT_CACHEABLE = 1,
 
 	/** Transient page, the transient cl_page is used to bind a cl_page
 	 *  to vmpage which is not belonging to the same object of cl_page.
-	 *  it is used in DirectIO, lockless IO and liblustre. */
+	 *  it is used in DirectIO, lockless IO and liblustre.
+	 */
 	CPT_TRANSIENT,
 };
 
@@ -728,7 +734,8 @@ struct cl_page {
 	/** Parent page, NULL for top-level page. Immutable after creation. */
 	struct cl_page	  *cp_parent;
 	/** Lower-layer page. NULL for bottommost page. Immutable after
-	 * creation. */
+	 * creation.
+	 */
 	struct cl_page	  *cp_child;
 	/**
 	 * Page state. This field is const to avoid accidental update, it is
@@ -1126,7 +1133,8 @@ static inline int __page_in_use(const struct cl_page *page, int refc)
 /** @} cl_page */
 
 /** \addtogroup cl_lock cl_lock
- * @{ */
+ * @{
+ */
 /** \struct cl_lock
  *
  * Extent locking on the client.
@@ -1641,7 +1649,8 @@ struct cl_lock {
 struct cl_lock_slice {
 	struct cl_lock		  *cls_lock;
 	/** Object slice corresponding to this lock slice. Immutable after
-	 * creation. */
+	 * creation.
+	 */
 	struct cl_object		*cls_obj;
 	const struct cl_lock_operations *cls_ops;
 	/** Linkage into cl_lock::cll_layers. Immutable after creation. */
@@ -1885,7 +1894,8 @@ struct cl_2queue {
 /** @} cl_page_list */
 
 /** \addtogroup cl_io cl_io
- * @{ */
+ * @{
+ */
 /** \struct cl_io
  * I/O
  *
@@ -2284,7 +2294,8 @@ enum cl_fsync_mode {
 	/** discard all of dirty pages in a specific file range */
 	CL_FSYNC_DISCARD = 2,
 	/** start writeback and make sure they have reached storage before
-	 * return. OST_SYNC RPC must be issued and finished */
+	 * return. OST_SYNC RPC must be issued and finished
+	 */
 	CL_FSYNC_ALL   = 3
 };
 
@@ -2403,7 +2414,8 @@ struct cl_io {
 /** @} cl_io */
 
 /** \addtogroup cl_req cl_req
- * @{ */
+ * @{
+ */
 /** \struct cl_req
  * Transfer.
  *
@@ -2582,7 +2594,8 @@ enum cache_stats_item {
 	/** how many entities are in the cache right now */
 	CS_total,
 	/** how many entities in the cache are actively used (and cannot be
-	 * evicted) right now */
+	 * evicted) right now
+	 */
 	CS_busy,
 	/** how many entities were created at all */
 	CS_create,
@@ -2613,7 +2626,7 @@ struct cl_site {
 	 * Statistical counters. Atomics do not scale, something better like
 	 * per-cpu counters is needed.
 	 *
-	 * These are exported as /proc/fs/lustre/llite/.../site
+	 * These are exported as /sys/kernel/debug/lustre/llite/.../site
 	 *
 	 * When interpreting keep in mind that both sub-locks (and sub-pages)
 	 * and top-locks (and top-pages) are accounted here.
@@ -2653,7 +2666,7 @@ static inline int lu_device_is_cl(const struct lu_device *d)
 
 static inline struct cl_device *lu2cl_dev(const struct lu_device *d)
 {
-	LASSERT(d == NULL || IS_ERR(d) || lu_device_is_cl(d));
+	LASSERT(!d || IS_ERR(d) || lu_device_is_cl(d));
 	return container_of0(d, struct cl_device, cd_lu_dev);
 }
 
@@ -2664,7 +2677,7 @@ static inline struct lu_device *cl2lu_dev(struct cl_device *d)
 
 static inline struct cl_object *lu2cl(const struct lu_object *o)
 {
-	LASSERT(o == NULL || IS_ERR(o) || lu_device_is_cl(o->lo_dev));
+	LASSERT(!o || IS_ERR(o) || lu_device_is_cl(o->lo_dev));
 	return container_of0(o, struct cl_object, co_lu);
 }
 
@@ -2681,7 +2694,7 @@ static inline struct cl_object *cl_object_next(const struct cl_object *obj)
 
 static inline struct cl_device *cl_object_device(const struct cl_object *o)
 {
-	LASSERT(o == NULL || IS_ERR(o) || lu_device_is_cl(o->co_lu.lo_dev));
+	LASSERT(!o || IS_ERR(o) || lu_device_is_cl(o->co_lu.lo_dev));
 	return container_of0(o->co_lu.lo_dev, struct cl_device, cd_lu_dev);
 }
 
@@ -2725,7 +2738,8 @@ void cl_req_slice_add(struct cl_req *req, struct cl_req_slice *slice,
 /** @} helpers */
 
 /** \defgroup cl_object cl_object
- * @{ */
+ * @{
+ */
 struct cl_object *cl_object_top (struct cl_object *o);
 struct cl_object *cl_object_find(const struct lu_env *env, struct cl_device *cd,
 				 const struct lu_fid *fid,
@@ -2770,7 +2784,8 @@ static inline void *cl_object_page_slice(struct cl_object *clob,
 /** @} cl_object */
 
 /** \defgroup cl_page cl_page
- * @{ */
+ * @{
+ */
 enum {
 	CLP_GANG_OKAY = 0,
 	CLP_GANG_RESCHED,
@@ -2888,7 +2903,8 @@ void cl_lock_descr_print(const struct lu_env *env, void *cookie,
 /** @} cl_page */
 
 /** \defgroup cl_lock cl_lock
- * @{ */
+ * @{
+ */
 
 struct cl_lock *cl_lock_hold(const struct lu_env *env, const struct cl_io *io,
 			     const struct cl_lock_descr *need,
@@ -2966,7 +2982,8 @@ int cl_lock_enqueue_wait(const struct lu_env *env, struct cl_lock *lock,
  *
  * cl_use_try()     NONE	 cl_lock_operations::clo_use()     CLS_HELD
  *
- * @{ */
+ * @{
+ */
 
 int   cl_wait       (const struct lu_env *env, struct cl_lock *lock);
 void  cl_unuse      (const struct lu_env *env, struct cl_lock *lock);
@@ -3019,7 +3036,8 @@ unsigned long cl_lock_weigh(const struct lu_env *env, struct cl_lock *lock);
 /** @} cl_lock */
 
 /** \defgroup cl_io cl_io
- * @{ */
+ * @{
+ */
 
 int   cl_io_init	 (const struct lu_env *env, struct cl_io *io,
 			  enum cl_io_type iot, struct cl_object *obj);
@@ -3094,7 +3112,8 @@ do {									\
 /** @} cl_io */
 
 /** \defgroup cl_page_list cl_page_list
- * @{ */
+ * @{
+ */
 
 /**
  * Last page in the page list.
@@ -3137,7 +3156,8 @@ void cl_2queue_init_page(struct cl_2queue *queue, struct cl_page *page);
 /** @} cl_page_list */
 
 /** \defgroup cl_req cl_req
- * @{ */
+ * @{
+ */
 struct cl_req *cl_req_alloc(const struct lu_env *env, struct cl_page *page,
 			    enum cl_req_type crt, int nr_objects);
 
@@ -3214,7 +3234,8 @@ void cl_sync_io_note(struct cl_sync_io *anchor, int ioret);
  *       - cl_env_reexit(cl_env_reenter had to be called priorly)
  *
  * \see lu_env, lu_context, lu_context_key
- * @{ */
+ * @{
+ */
 
 struct cl_env_nest {
 	int   cen_refcheck;
diff --git a/drivers/staging/lustre/lustre/include/lclient.h b/drivers/staging/lustre/lustre/include/lclient.h
index 36e7a67..5d839a9 100644
--- a/drivers/staging/lustre/lustre/include/lclient.h
+++ b/drivers/staging/lustre/lustre/include/lclient.h
@@ -127,7 +127,7 @@ static inline struct ccc_thread_info *ccc_env_info(const struct lu_env *env)
 	struct ccc_thread_info      *info;
 
 	info = lu_context_key_get(&env->le_ctx, &ccc_key);
-	LASSERT(info != NULL);
+	LASSERT(info);
 	return info;
 }
 
@@ -156,7 +156,7 @@ static inline struct ccc_session *ccc_env_session(const struct lu_env *env)
 	struct ccc_session *ses;
 
 	ses = lu_context_key_get(env->le_ses, &ccc_session_key);
-	LASSERT(ses != NULL);
+	LASSERT(ses);
 	return ses;
 }
 
@@ -383,7 +383,8 @@ void cl_put_grouplock(struct ccc_grouplock *cg);
  *
  * NB: If you find you have to use these interfaces for your new code, please
  * think about it again. These interfaces may be removed in the future for
- * better layering. */
+ * better layering.
+ */
 struct lov_stripe_md *lov_lsm_get(struct cl_object *clobj);
 void lov_lsm_put(struct cl_object *clobj, struct lov_stripe_md *lsm);
 int lov_read_and_clear_async_rc(struct cl_object *clob);
diff --git a/drivers/staging/lustre/lustre/include/linux/obd.h b/drivers/staging/lustre/lustre/include/linux/obd.h
index 468bc28..3907bf4 100644
--- a/drivers/staging/lustre/lustre/include/linux/obd.h
+++ b/drivers/staging/lustre/lustre/include/linux/obd.h
@@ -57,23 +57,23 @@ struct ll_iattr {
 
 #define CLIENT_OBD_LIST_LOCK_DEBUG 1
 
-typedef struct {
+struct client_obd_lock {
 	spinlock_t		lock;
 
 	unsigned long       time;
 	struct task_struct *task;
 	const char	 *func;
 	int		 line;
-} client_obd_lock_t;
+};
 
-static inline void __client_obd_list_lock(client_obd_lock_t *lock,
+static inline void __client_obd_list_lock(struct client_obd_lock *lock,
 					  const char *func, int line)
 {
 	unsigned long cur = jiffies;
 
 	while (1) {
 		if (spin_trylock(&lock->lock)) {
-			LASSERT(lock->task == NULL);
+			LASSERT(!lock->task);
 			lock->task = current;
 			lock->func = func;
 			lock->line = line;
@@ -85,7 +85,7 @@ static inline void __client_obd_list_lock(client_obd_lock_t *lock,
 		    time_before(lock->time + 5 * HZ, jiffies)) {
 			struct task_struct *task = lock->task;
 
-			if (task == NULL)
+			if (!task)
 				continue;
 
 			LCONSOLE_WARN("%s:%d: lock %p was acquired by <%s:%d:%s:%d> for %lu seconds.\n",
@@ -106,20 +106,20 @@ static inline void __client_obd_list_lock(client_obd_lock_t *lock,
 #define client_obd_list_lock(lock) \
 	__client_obd_list_lock(lock, __func__, __LINE__)
 
-static inline void client_obd_list_unlock(client_obd_lock_t *lock)
+static inline void client_obd_list_unlock(struct client_obd_lock *lock)
 {
-	LASSERT(lock->task != NULL);
+	LASSERT(lock->task);
 	lock->task = NULL;
 	lock->time = jiffies;
 	spin_unlock(&lock->lock);
 }
 
-static inline void client_obd_list_lock_init(client_obd_lock_t *lock)
+static inline void client_obd_list_lock_init(struct client_obd_lock *lock)
 {
 	spin_lock_init(&lock->lock);
 }
 
-static inline void client_obd_list_lock_done(client_obd_lock_t *lock)
+static inline void client_obd_list_lock_done(struct client_obd_lock *lock)
 {}
 
 #endif /* __LINUX_OBD_H */
diff --git a/drivers/staging/lustre/lustre/include/lprocfs_status.h b/drivers/staging/lustre/lustre/include/lprocfs_status.h
index fb13094..0d98111 100644
--- a/drivers/staging/lustre/lustre/include/lprocfs_status.h
+++ b/drivers/staging/lustre/lustre/include/lprocfs_status.h
@@ -54,7 +54,7 @@ struct lprocfs_vars {
 	struct file_operations	*fops;
 	void			*data;
 	/**
-	 * /proc file mode.
+	 * sysfs file mode.
 	 */
 	umode_t			proc_mode;
 };
@@ -175,7 +175,8 @@ struct lprocfs_percpu {
 enum lprocfs_stats_flags {
 	LPROCFS_STATS_FLAG_NONE     = 0x0000, /* per cpu counter */
 	LPROCFS_STATS_FLAG_NOPERCPU = 0x0001, /* stats have no percpu
-					       * area and need locking */
+					       * area and need locking
+					       */
 	LPROCFS_STATS_FLAG_IRQ_SAFE = 0x0002, /* alloc need irq safe */
 };
 
@@ -196,7 +197,8 @@ struct lprocfs_stats {
 	unsigned short			ls_biggest_alloc_num;
 	enum lprocfs_stats_flags	ls_flags;
 	/* Lock used when there are no percpu stats areas; For percpu stats,
-	 * it is used to protect ls_biggest_alloc_num change */
+	 * it is used to protect ls_biggest_alloc_num change
+	 */
 	spinlock_t			ls_lock;
 
 	/* has ls_num of counter headers */
@@ -274,20 +276,7 @@ static inline int opcode_offset(__u32 opc)
 			OPC_RANGE(OST));
 	} else if (opc < FLD_LAST_OPC) {
 		/* FLD opcode */
-		 return (opc - FLD_FIRST_OPC +
-			OPC_RANGE(SEC) +
-			OPC_RANGE(SEQ) +
-			OPC_RANGE(QUOTA) +
-			OPC_RANGE(LLOG) +
-			OPC_RANGE(OBD) +
-			OPC_RANGE(MGS) +
-			OPC_RANGE(LDLM) +
-			OPC_RANGE(MDS) +
-			OPC_RANGE(OST));
-	} else if (opc < UPDATE_LAST_OPC) {
-		/* update opcode */
-		return (opc - UPDATE_FIRST_OPC +
-			OPC_RANGE(FLD) +
+		return (opc - FLD_FIRST_OPC +
 			OPC_RANGE(SEC) +
 			OPC_RANGE(SEQ) +
 			OPC_RANGE(QUOTA) +
@@ -312,8 +301,7 @@ static inline int opcode_offset(__u32 opc)
 			    OPC_RANGE(SEC)  + \
 			    OPC_RANGE(SEQ)  + \
 			    OPC_RANGE(SEC)  + \
-			    OPC_RANGE(FLD)  + \
-			    OPC_RANGE(UPDATE))
+			    OPC_RANGE(FLD))
 
 #define EXTRA_MAX_OPCODES ((PTLRPC_LAST_CNTR - PTLRPC_FIRST_CNTR)  + \
 			    OPC_RANGE(EXTRA))
@@ -407,7 +395,7 @@ static inline int lprocfs_stats_lock(struct lprocfs_stats *stats, int opc,
 		} else {
 			unsigned int cpuid = get_cpu();
 
-			if (unlikely(stats->ls_percpu[cpuid] == NULL)) {
+			if (unlikely(!stats->ls_percpu[cpuid])) {
 				rc = lprocfs_stats_alloc_one(stats, cpuid);
 				if (rc < 0) {
 					put_cpu();
@@ -521,11 +509,11 @@ static inline __u64 lprocfs_stats_collector(struct lprocfs_stats *stats,
 	unsigned long flags	= 0;
 	__u64	      ret	= 0;
 
-	LASSERT(stats != NULL);
+	LASSERT(stats);
 
 	num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
 	for (i = 0; i < num_cpu; i++) {
-		if (stats->ls_percpu[i] == NULL)
+		if (!stats->ls_percpu[i])
 			continue;
 		ret += lprocfs_read_helper(
 				lprocfs_stats_counter_get(stats, i, idx),
@@ -625,9 +613,10 @@ int lprocfs_single_release(struct inode *, struct file *);
 int lprocfs_seq_release(struct inode *, struct file *);
 
 /* write the name##_seq_show function, call LPROC_SEQ_FOPS_RO for read-only
-  proc entries; otherwise, you will define name##_seq_write function also for
-  a read-write proc entry, and then call LPROC_SEQ_SEQ instead. Finally,
-  call ldebugfs_obd_seq_create(obd, filename, 0444, &name#_fops, data); */
+ * proc entries; otherwise, you will define name##_seq_write function also for
+ * a read-write proc entry, and then call LPROC_SEQ_SEQ instead. Finally,
+ * call ldebugfs_obd_seq_create(obd, filename, 0444, &name#_fops, data);
+ */
 #define __LPROC_SEQ_FOPS(name, custom_seq_write)			\
 static int name##_single_open(struct inode *inode, struct file *file)	\
 {									\
diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h
index 0b22e5e..b5088b1 100644
--- a/drivers/staging/lustre/lustre/include/lu_object.h
+++ b/drivers/staging/lustre/lustre/include/lu_object.h
@@ -164,11 +164,12 @@ struct lu_device_operations {
 /**
  * For lu_object_conf flags
  */
-typedef enum {
+enum loc_flags {
 	/* This is a new object to be allocated, or the file
-	 * corresponding to the object does not exists. */
+	 * corresponding to the object does not exists.
+	 */
 	LOC_F_NEW	= 0x00000001,
-} loc_flags_t;
+};
 
 /**
  * Object configuration, describing particulars of object being created. On
@@ -179,7 +180,7 @@ struct lu_object_conf {
 	/**
 	 * Some hints for obj find and alloc.
 	 */
-	loc_flags_t     loc_flags;
+	enum loc_flags     loc_flags;
 };
 
 /**
@@ -392,7 +393,7 @@ struct lu_device_type_operations {
 
 static inline int lu_device_is_md(const struct lu_device *d)
 {
-	return ergo(d != NULL, d->ld_type->ldt_tags & LU_DEVICE_MD);
+	return ergo(d, d->ld_type->ldt_tags & LU_DEVICE_MD);
 }
 
 /**
@@ -895,7 +896,8 @@ enum lu_xattr_flags {
 /** @} helpers */
 
 /** \name lu_context
- * @{ */
+ * @{
+ */
 
 /** For lu_context health-checks */
 enum lu_context_state {
@@ -1119,7 +1121,7 @@ struct lu_context_key {
 		CLASSERT(PAGE_CACHE_SIZE >= sizeof (*value));       \
 								  \
 		value = kzalloc(sizeof(*value), GFP_NOFS);	\
-		if (value == NULL)				\
+		if (!value)				\
 			value = ERR_PTR(-ENOMEM);		 \
 								  \
 		return value;				     \
@@ -1174,7 +1176,7 @@ void  lu_context_key_revive  (struct lu_context_key *key);
 		do {						    \
 			LU_CONTEXT_KEY_INIT(key);		       \
 			key = va_arg(args, struct lu_context_key *);    \
-		} while (key != NULL);				  \
+		} while (key);				  \
 		va_end(args);					   \
 	}
 
diff --git a/drivers/staging/lustre/lustre/include/lu_ref.h b/drivers/staging/lustre/lustre/include/lu_ref.h
index 97cd157..f7dfd83 100644
--- a/drivers/staging/lustre/lustre/include/lu_ref.h
+++ b/drivers/staging/lustre/lustre/include/lu_ref.h
@@ -17,10 +17,6 @@
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Lustre; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  */
 
 #ifndef __LUSTRE_LU_REF_H
diff --git a/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h b/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h
index 09088f4..07d45de 100644
--- a/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h
+++ b/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h
@@ -47,9 +47,11 @@
 
 struct ll_fiemap_extent {
 	__u64 fe_logical;  /* logical offset in bytes for the start of
-			    * the extent from the beginning of the file */
+			    * the extent from the beginning of the file
+			    */
 	__u64 fe_physical; /* physical offset in bytes for the start
-			    * of the extent from the beginning of the disk */
+			    * of the extent from the beginning of the disk
+			    */
 	__u64 fe_length;   /* length in bytes for this extent */
 	__u64 fe_reserved64[2];
 	__u32 fe_flags;    /* FIEMAP_EXTENT_* flags for this extent */
@@ -59,9 +61,11 @@ struct ll_fiemap_extent {
 
 struct ll_user_fiemap {
 	__u64 fm_start;  /* logical offset (inclusive) at
-			  * which to start mapping (in) */
+			  * which to start mapping (in)
+			  */
 	__u64 fm_length; /* logical length of mapping which
-			  * userspace wants (in) */
+			  * userspace wants (in)
+			  */
 	__u32 fm_flags;  /* FIEMAP_FLAG_* flags for request (in/out) */
 	__u32 fm_mapped_extents;/* number of extents that were mapped (out) */
 	__u32 fm_extent_count;  /* size of fm_extents array (in) */
@@ -71,28 +75,38 @@ struct ll_user_fiemap {
 
 #define FIEMAP_MAX_OFFSET      (~0ULL)
 
-#define FIEMAP_FLAG_SYNC	 0x00000001 /* sync file data before map */
-#define FIEMAP_FLAG_XATTR	0x00000002 /* map extended attribute tree */
-
-#define FIEMAP_EXTENT_LAST	      0x00000001 /* Last extent in file. */
-#define FIEMAP_EXTENT_UNKNOWN	   0x00000002 /* Data location unknown. */
-#define FIEMAP_EXTENT_DELALLOC	  0x00000004 /* Location still pending.
-						    * Sets EXTENT_UNKNOWN. */
-#define FIEMAP_EXTENT_ENCODED	   0x00000008 /* Data can not be read
-						    * while fs is unmounted */
-#define FIEMAP_EXTENT_DATA_ENCRYPTED    0x00000080 /* Data is encrypted by fs.
-						    * Sets EXTENT_NO_DIRECT. */
+#define FIEMAP_FLAG_SYNC		0x00000001 /* sync file data before
+						    * map
+						    */
+#define FIEMAP_FLAG_XATTR		0x00000002 /* map extended attribute
+						    * tree
+						    */
+#define FIEMAP_EXTENT_LAST		0x00000001 /* Last extent in file. */
+#define FIEMAP_EXTENT_UNKNOWN		0x00000002 /* Data location unknown. */
+#define FIEMAP_EXTENT_DELALLOC		0x00000004 /* Location still pending.
+						    * Sets EXTENT_UNKNOWN.
+						    */
+#define FIEMAP_EXTENT_ENCODED		0x00000008 /* Data can not be read
+						    * while fs is unmounted
+						    */
+#define FIEMAP_EXTENT_DATA_ENCRYPTED	0x00000080 /* Data is encrypted by fs.
+						    * Sets EXTENT_NO_DIRECT.
+						    */
 #define FIEMAP_EXTENT_NOT_ALIGNED       0x00000100 /* Extent offsets may not be
-						    * block aligned. */
+						    * block aligned.
+						    */
 #define FIEMAP_EXTENT_DATA_INLINE       0x00000200 /* Data mixed with metadata.
 						    * Sets EXTENT_NOT_ALIGNED.*/
-#define FIEMAP_EXTENT_DATA_TAIL	 0x00000400 /* Multiple files in block.
-						    * Sets EXTENT_NOT_ALIGNED.*/
-#define FIEMAP_EXTENT_UNWRITTEN	 0x00000800 /* Space allocated, but
-						    * no data (i.e. zero). */
-#define FIEMAP_EXTENT_MERGED	    0x00001000 /* File does not natively
+#define FIEMAP_EXTENT_DATA_TAIL		0x00000400 /* Multiple files in block.
+						    * Sets EXTENT_NOT_ALIGNED.
+						    */
+#define FIEMAP_EXTENT_UNWRITTEN		0x00000800 /* Space allocated, but
+						    * no data (i.e. zero).
+						    */
+#define FIEMAP_EXTENT_MERGED		0x00001000 /* File does not natively
 						    * support extents. Result
-						    * merged for efficiency. */
+						    * merged for efficiency.
+						    */
 
 static inline size_t fiemap_count_to_size(size_t extent_count)
 {
@@ -114,7 +128,8 @@ static inline unsigned fiemap_size_to_count(size_t array_size)
 
 /* Lustre specific flags - use a high bit, don't conflict with upstream flag */
 #define FIEMAP_EXTENT_NO_DIRECT	 0x40000000 /* Data mapping undefined */
-#define FIEMAP_EXTENT_NET	       0x80000000 /* Data stored remotely.
-						    * Sets NO_DIRECT flag */
+#define FIEMAP_EXTENT_NET	 0x80000000 /* Data stored remotely.
+					     * Sets NO_DIRECT flag
+					     */
 
 #endif /* _LUSTRE_FIEMAP_H */
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_build_version.h b/drivers/staging/lustre/lustre/include/lustre/lustre_build_version.h
deleted file mode 100644
index 93a3d7d..0000000
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_build_version.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#define BUILD_VERSION "v2_3_64_0-g6e62c21-CHANGED-3.9.0"
-#define LUSTRE_RELEASE 3.9.0_g6e62c21
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
index b064b58..284affb 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
@@ -113,25 +113,25 @@
 
 #define CONNMGR_REQUEST_PORTAL	  1
 #define CONNMGR_REPLY_PORTAL	    2
-//#define OSC_REQUEST_PORTAL	    3
+/*#define OSC_REQUEST_PORTAL	    3 */
 #define OSC_REPLY_PORTAL		4
-//#define OSC_BULK_PORTAL	       5
+/*#define OSC_BULK_PORTAL	       5 */
 #define OST_IO_PORTAL		   6
 #define OST_CREATE_PORTAL	       7
 #define OST_BULK_PORTAL		 8
-//#define MDC_REQUEST_PORTAL	    9
+/*#define MDC_REQUEST_PORTAL	    9 */
 #define MDC_REPLY_PORTAL	       10
-//#define MDC_BULK_PORTAL	      11
+/*#define MDC_BULK_PORTAL	      11 */
 #define MDS_REQUEST_PORTAL	     12
-//#define MDS_REPLY_PORTAL	     13
+/*#define MDS_REPLY_PORTAL	     13 */
 #define MDS_BULK_PORTAL		14
 #define LDLM_CB_REQUEST_PORTAL	 15
 #define LDLM_CB_REPLY_PORTAL	   16
 #define LDLM_CANCEL_REQUEST_PORTAL     17
 #define LDLM_CANCEL_REPLY_PORTAL       18
-//#define PTLBD_REQUEST_PORTAL	   19
-//#define PTLBD_REPLY_PORTAL	     20
-//#define PTLBD_BULK_PORTAL	      21
+/*#define PTLBD_REQUEST_PORTAL	   19 */
+/*#define PTLBD_REPLY_PORTAL	     20 */
+/*#define PTLBD_BULK_PORTAL	      21 */
 #define MDS_SETATTR_PORTAL	     22
 #define MDS_READPAGE_PORTAL	    23
 #define OUT_PORTAL		    24
@@ -146,7 +146,9 @@
 #define SEQ_CONTROLLER_PORTAL	  32
 #define MGS_BULK_PORTAL		33
 
-/* Portal 63 is reserved for the Cray Inc DVS - nic@cray.com, roe@cray.com, n8851@cray.com */
+/* Portal 63 is reserved for the Cray Inc DVS - nic@cray.com, roe@cray.com,
+ *						n8851@cray.com
+ */
 
 /* packet types */
 #define PTL_RPC_MSG_REQUEST 4711
@@ -295,7 +297,8 @@ static inline int range_compare_loc(const struct lu_seq_range *r1,
 	fld_range_is_mdt(range) ? "mdt" : "ost"
 
 /** \defgroup lu_fid lu_fid
- * @{ */
+ * @{
+ */
 
 /**
  * Flags for lustre_mdt_attrs::lma_compat and lustre_mdt_attrs::lma_incompat.
@@ -307,7 +310,8 @@ enum lma_compat {
 	LMAC_SOM	= 0x00000002,
 	LMAC_NOT_IN_OI	= 0x00000004, /* the object does NOT need OI mapping */
 	LMAC_FID_ON_OST = 0x00000008, /* For OST-object, its OI mapping is
-				       * under /O/<seq>/d<x>. */
+				       * under /O/<seq>/d<x>.
+				       */
 };
 
 /**
@@ -319,7 +323,8 @@ enum lma_incompat {
 	LMAI_RELEASED		= 0x00000001, /* file is released */
 	LMAI_AGENT		= 0x00000002, /* agent inode */
 	LMAI_REMOTE_PARENT	= 0x00000004, /* the parent of the object
-						 is on the remote MDT */
+					       * is on the remote MDT
+					       */
 };
 
 #define LMA_INCOMPAT_SUPP	(LMAI_AGENT | LMAI_REMOTE_PARENT)
@@ -395,12 +400,14 @@ enum fid_seq {
 	FID_SEQ_LOCAL_FILE	= 0x200000001ULL,
 	FID_SEQ_DOT_LUSTRE	= 0x200000002ULL,
 	/* sequence is used for local named objects FIDs generated
-	 * by local_object_storage library */
+	 * by local_object_storage library
+	 */
 	FID_SEQ_LOCAL_NAME	= 0x200000003ULL,
 	/* Because current FLD will only cache the fid sequence, instead
 	 * of oid on the client side, if the FID needs to be exposed to
 	 * clients sides, it needs to make sure all of fids under one
-	 * sequence will be located in one MDT. */
+	 * sequence will be located in one MDT.
+	 */
 	FID_SEQ_SPECIAL		= 0x200000004ULL,
 	FID_SEQ_QUOTA		= 0x200000005ULL,
 	FID_SEQ_QUOTA_GLB	= 0x200000006ULL,
@@ -601,7 +608,8 @@ static inline void ostid_set_seq(struct ost_id *oi, __u64 seq)
 		oi->oi_fid.f_seq = seq;
 		/* Note: if f_oid + f_ver is zero, we need init it
 		 * to be 1, otherwise, ostid_seq will treat this
-		 * as old ostid (oi_seq == 0) */
+		 * as old ostid (oi_seq == 0)
+		 */
 		if (oi->oi_fid.f_oid == 0 && oi->oi_fid.f_ver == 0)
 			oi->oi_fid.f_oid = LUSTRE_FID_INIT_OID;
 	}
@@ -689,11 +697,12 @@ static inline int ostid_to_fid(struct lu_fid *fid, struct ost_id *ostid,
 		 * that we map into the IDIF namespace.  It allows up to 2^48
 		 * objects per OST, as this is the object namespace that has
 		 * been in production for years.  This can handle create rates
-		 * of 1M objects/s/OST for 9 years, or combinations thereof. */
+		 * of 1M objects/s/OST for 9 years, or combinations thereof.
+		 */
 		if (ostid_id(ostid) >= IDIF_MAX_OID) {
-			 CERROR("bad MDT0 id, "DOSTID" ost_idx:%u\n",
-				POSTID(ostid), ost_idx);
-			 return -EBADF;
+			CERROR("bad MDT0 id, " DOSTID " ost_idx:%u\n",
+			       POSTID(ostid), ost_idx);
+			return -EBADF;
 		}
 		fid->f_seq = fid_idif_seq(ostid_id(ostid), ost_idx);
 		/* truncate to 32 bits by assignment */
@@ -704,7 +713,8 @@ static inline int ostid_to_fid(struct lu_fid *fid, struct ost_id *ostid,
 	       /* This is either an IDIF object, which identifies objects across
 		* all OSTs, or a regular FID.  The IDIF namespace maps legacy
 		* OST objects into the FID namespace.  In both cases, we just
-		* pass the FID through, no conversion needed. */
+		* pass the FID through, no conversion needed.
+		*/
 		if (ostid->oi_fid.f_ver != 0) {
 			CERROR("bad MDT0 id, "DOSTID" ost_idx:%u\n",
 				POSTID(ostid), ost_idx);
@@ -807,7 +817,7 @@ static inline void fid_be_to_cpu(struct lu_fid *dst, const struct lu_fid *src)
 
 static inline int fid_is_sane(const struct lu_fid *fid)
 {
-	return fid != NULL &&
+	return fid &&
 	       ((fid_seq(fid) >= FID_SEQ_START && fid_ver(fid) == 0) ||
 		fid_is_igif(fid) || fid_is_idif(fid) ||
 		fid_seq_is_rsvd(fid_seq(fid)));
@@ -868,7 +878,8 @@ static inline void ostid_le_to_cpu(const struct ost_id *src_oi,
 /** @} lu_fid */
 
 /** \defgroup lu_dir lu_dir
- * @{ */
+ * @{
+ */
 
 /**
  * Enumeration of possible directory entry attributes.
@@ -880,24 +891,8 @@ enum lu_dirent_attrs {
 	LUDA_FID		= 0x0001,
 	LUDA_TYPE		= 0x0002,
 	LUDA_64BITHASH		= 0x0004,
-
-	/* The following attrs are used for MDT internal only,
-	 * not visible to client */
-
-	/* Verify the dirent consistency */
-	LUDA_VERIFY		= 0x8000,
-	/* Only check but not repair the dirent inconsistency */
-	LUDA_VERIFY_DRYRUN	= 0x4000,
-	/* The dirent has been repaired, or to be repaired (dryrun). */
-	LUDA_REPAIR		= 0x2000,
-	/* The system is upgraded, has beed or to be repaired (dryrun). */
-	LUDA_UPGRADE		= 0x1000,
-	/* Ignore this record, go to next directly. */
-	LUDA_IGNORE		= 0x0800,
 };
 
-#define LU_DIRENT_ATTRS_MASK	0xf800
-
 /**
  * Layout of readdir pages, as transmitted on wire.
  */
@@ -1128,7 +1123,8 @@ struct ptlrpc_body_v2 {
 	__u32 pb_conn_cnt;
 	__u32 pb_timeout;  /* for req, the deadline, for rep, the service est */
 	__u32 pb_service_time; /* for rep, actual service time, also used for
-				  net_latency of req */
+				* net_latency of req
+				*/
 	__u32 pb_limit;
 	__u64 pb_slv;
 	/* VBR: pre-versions */
@@ -1174,7 +1170,8 @@ void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb);
 /* #define MSG_AT_SUPPORT	 0x0008
  * This was used in early prototypes of adaptive timeouts, and while there
  * shouldn't be any users of that code there also isn't a need for using this
- * bits. Defer usage until at least 1.10 to avoid potential conflict. */
+ * bits. Defer usage until at least 1.10 to avoid potential conflict.
+ */
 #define MSG_DELAY_REPLAY	  0x0010
 #define MSG_VERSION_REPLAY	0x0020
 #define MSG_REQ_REPLAY_DONE       0x0040
@@ -1187,7 +1184,7 @@ void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb);
 #define MSG_CONNECT_RECOVERING  0x00000001
 #define MSG_CONNECT_RECONNECT   0x00000002
 #define MSG_CONNECT_REPLAYABLE  0x00000004
-//#define MSG_CONNECT_PEER	0x8
+/*#define MSG_CONNECT_PEER	0x8 */
 #define MSG_CONNECT_LIBCLIENT   0x00000010
 #define MSG_CONNECT_INITIAL     0x00000020
 #define MSG_CONNECT_ASYNC       0x00000040
@@ -1195,60 +1192,65 @@ void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb);
 #define MSG_CONNECT_TRANSNO     0x00000100 /* report transno */
 
 /* Connect flags */
-#define OBD_CONNECT_RDONLY		0x1ULL /*client has read-only access*/
-#define OBD_CONNECT_INDEX		 0x2ULL /*connect specific LOV idx */
-#define OBD_CONNECT_MDS		   0x4ULL /*connect from MDT to OST */
-#define OBD_CONNECT_GRANT		 0x8ULL /*OSC gets grant at connect */
-#define OBD_CONNECT_SRVLOCK	      0x10ULL /*server takes locks for cli */
-#define OBD_CONNECT_VERSION	      0x20ULL /*Lustre versions in ocd */
-#define OBD_CONNECT_REQPORTAL	    0x40ULL /*Separate non-IO req portal */
-#define OBD_CONNECT_ACL		  0x80ULL /*access control lists */
-#define OBD_CONNECT_XATTR	       0x100ULL /*client use extended attr */
+#define OBD_CONNECT_RDONLY		  0x1ULL /*client has read-only access*/
+#define OBD_CONNECT_INDEX		  0x2ULL /*connect specific LOV idx */
+#define OBD_CONNECT_MDS			  0x4ULL /*connect from MDT to OST */
+#define OBD_CONNECT_GRANT		  0x8ULL /*OSC gets grant at connect */
+#define OBD_CONNECT_SRVLOCK		 0x10ULL /*server takes locks for cli */
+#define OBD_CONNECT_VERSION		 0x20ULL /*Lustre versions in ocd */
+#define OBD_CONNECT_REQPORTAL		 0x40ULL /*Separate non-IO req portal */
+#define OBD_CONNECT_ACL			 0x80ULL /*access control lists */
+#define OBD_CONNECT_XATTR		0x100ULL /*client use extended attr */
 #define OBD_CONNECT_CROW		0x200ULL /*MDS+OST create obj on write*/
-#define OBD_CONNECT_TRUNCLOCK	   0x400ULL /*locks on server for punch */
-#define OBD_CONNECT_TRANSNO	     0x800ULL /*replay sends init transno */
-#define OBD_CONNECT_IBITS	      0x1000ULL /*support for inodebits locks*/
+#define OBD_CONNECT_TRUNCLOCK		0x400ULL /*locks on server for punch */
+#define OBD_CONNECT_TRANSNO		0x800ULL /*replay sends init transno */
+#define OBD_CONNECT_IBITS	       0x1000ULL /*support for inodebits locks*/
 #define OBD_CONNECT_JOIN	       0x2000ULL /*files can be concatenated.
 						  *We do not support JOIN FILE
 						  *anymore, reserve this flags
 						  *just for preventing such bit
-						  *to be reused.*/
-#define OBD_CONNECT_ATTRFID	    0x4000ULL /*Server can GetAttr By Fid*/
-#define OBD_CONNECT_NODEVOH	    0x8000ULL /*No open hndl on specl nodes*/
-#define OBD_CONNECT_RMT_CLIENT	0x10000ULL /*Remote client */
+						  *to be reused.
+						  */
+#define OBD_CONNECT_ATTRFID	       0x4000ULL /*Server can GetAttr By Fid*/
+#define OBD_CONNECT_NODEVOH	       0x8000ULL /*No open hndl on specl nodes*/
+#define OBD_CONNECT_RMT_CLIENT	      0x10000ULL /*Remote client */
 #define OBD_CONNECT_RMT_CLIENT_FORCE  0x20000ULL /*Remote client by force */
-#define OBD_CONNECT_BRW_SIZE	  0x40000ULL /*Max bytes per rpc */
-#define OBD_CONNECT_QUOTA64	   0x80000ULL /*Not used since 2.4 */
-#define OBD_CONNECT_MDS_CAPA	 0x100000ULL /*MDS capability */
-#define OBD_CONNECT_OSS_CAPA	 0x200000ULL /*OSS capability */
-#define OBD_CONNECT_CANCELSET	0x400000ULL /*Early batched cancels. */
-#define OBD_CONNECT_SOM	      0x800000ULL /*Size on MDS */
-#define OBD_CONNECT_AT	      0x1000000ULL /*client uses AT */
+#define OBD_CONNECT_BRW_SIZE	      0x40000ULL /*Max bytes per rpc */
+#define OBD_CONNECT_QUOTA64	      0x80000ULL /*Not used since 2.4 */
+#define OBD_CONNECT_MDS_CAPA	     0x100000ULL /*MDS capability */
+#define OBD_CONNECT_OSS_CAPA	     0x200000ULL /*OSS capability */
+#define OBD_CONNECT_CANCELSET	     0x400000ULL /*Early batched cancels. */
+#define OBD_CONNECT_SOM		     0x800000ULL /*Size on MDS */
+#define OBD_CONNECT_AT		    0x1000000ULL /*client uses AT */
 #define OBD_CONNECT_LRU_RESIZE      0x2000000ULL /*LRU resize feature. */
-#define OBD_CONNECT_MDS_MDS	 0x4000000ULL /*MDS-MDS connection */
+#define OBD_CONNECT_MDS_MDS	    0x4000000ULL /*MDS-MDS connection */
 #define OBD_CONNECT_REAL	    0x8000000ULL /*real connection */
 #define OBD_CONNECT_CHANGE_QS      0x10000000ULL /*Not used since 2.4 */
-#define OBD_CONNECT_CKSUM	  0x20000000ULL /*support several cksum algos*/
-#define OBD_CONNECT_FID	    0x40000000ULL /*FID is supported by server */
-#define OBD_CONNECT_VBR	    0x80000000ULL /*version based recovery */
-#define OBD_CONNECT_LOV_V3	0x100000000ULL /*client supports LOV v3 EA */
+#define OBD_CONNECT_CKSUM	   0x20000000ULL /*support several cksum algos*/
+#define OBD_CONNECT_FID		   0x40000000ULL /*FID is supported by server */
+#define OBD_CONNECT_VBR		   0x80000000ULL /*version based recovery */
+#define OBD_CONNECT_LOV_V3	  0x100000000ULL /*client supports LOV v3 EA */
 #define OBD_CONNECT_GRANT_SHRINK  0x200000000ULL /* support grant shrink */
 #define OBD_CONNECT_SKIP_ORPHAN   0x400000000ULL /* don't reuse orphan objids */
 #define OBD_CONNECT_MAX_EASIZE    0x800000000ULL /* preserved for large EA */
 #define OBD_CONNECT_FULL20       0x1000000000ULL /* it is 2.0 client */
 #define OBD_CONNECT_LAYOUTLOCK   0x2000000000ULL /* client uses layout lock */
 #define OBD_CONNECT_64BITHASH    0x4000000000ULL /* client supports 64-bits
-						  * directory hash */
+						  * directory hash
+						  */
 #define OBD_CONNECT_MAXBYTES     0x8000000000ULL /* max stripe size */
 #define OBD_CONNECT_IMP_RECOV   0x10000000000ULL /* imp recovery support */
 #define OBD_CONNECT_JOBSTATS    0x20000000000ULL /* jobid in ptlrpc_body */
 #define OBD_CONNECT_UMASK       0x40000000000ULL /* create uses client umask */
 #define OBD_CONNECT_EINPROGRESS 0x80000000000ULL /* client handles -EINPROGRESS
-						  * RPC error properly */
+						  * RPC error properly
+						  */
 #define OBD_CONNECT_GRANT_PARAM 0x100000000000ULL/* extra grant params used for
-						  * finer space reservation */
+						  * finer space reservation
+						  */
 #define OBD_CONNECT_FLOCK_OWNER 0x200000000000ULL /* for the fixed 1.8
-						   * policy and 2.x server */
+						   * policy and 2.x server
+						   */
 #define OBD_CONNECT_LVB_TYPE	0x400000000000ULL /* variable type of LVB */
 #define OBD_CONNECT_NANOSEC_TIME 0x800000000000ULL /* nanosecond timestamps */
 #define OBD_CONNECT_LIGHTWEIGHT 0x1000000000000ULL/* lightweight connection */
@@ -1264,61 +1266,19 @@ void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb);
  * submit a small patch against EVERY branch that ONLY adds the new flag,
  * updates obd_connect_names[] for lprocfs_rd_connect_flags(), adds the
  * flag to check_obd_connect_data(), and updates wiretests accordingly, so it
- * can be approved and landed easily to reserve the flag for future use. */
+ * can be approved and landed easily to reserve the flag for future use.
+ */
 
 /* The MNE_SWAB flag is overloading the MDS_MDS bit only for the MGS
  * connection.  It is a temporary bug fix for Imperative Recovery interop
  * between 2.2 and 2.3 x86/ppc nodes, and can be removed when interop for
- * 2.2 clients/servers is no longer needed.  LU-1252/LU-1644. */
+ * 2.2 clients/servers is no longer needed.  LU-1252/LU-1644.
+ */
 #define OBD_CONNECT_MNE_SWAB		 OBD_CONNECT_MDS_MDS
 
 #define OCD_HAS_FLAG(ocd, flg)  \
 	(!!((ocd)->ocd_connect_flags & OBD_CONNECT_##flg))
 
-#define LRU_RESIZE_CONNECT_FLAG OBD_CONNECT_LRU_RESIZE
-
-#define MDT_CONNECT_SUPPORTED  (OBD_CONNECT_RDONLY | OBD_CONNECT_VERSION | \
-				OBD_CONNECT_ACL | OBD_CONNECT_XATTR | \
-				OBD_CONNECT_IBITS | \
-				OBD_CONNECT_NODEVOH | OBD_CONNECT_ATTRFID | \
-				OBD_CONNECT_CANCELSET | OBD_CONNECT_AT | \
-				OBD_CONNECT_RMT_CLIENT | \
-				OBD_CONNECT_RMT_CLIENT_FORCE | \
-				OBD_CONNECT_BRW_SIZE | OBD_CONNECT_MDS_CAPA | \
-				OBD_CONNECT_OSS_CAPA | OBD_CONNECT_MDS_MDS | \
-				OBD_CONNECT_FID | LRU_RESIZE_CONNECT_FLAG | \
-				OBD_CONNECT_VBR | OBD_CONNECT_LOV_V3 | \
-				OBD_CONNECT_SOM | OBD_CONNECT_FULL20 | \
-				OBD_CONNECT_64BITHASH | OBD_CONNECT_JOBSTATS | \
-				OBD_CONNECT_EINPROGRESS | \
-				OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_UMASK | \
-				OBD_CONNECT_LVB_TYPE | OBD_CONNECT_LAYOUTLOCK |\
-				OBD_CONNECT_PINGLESS | OBD_CONNECT_MAX_EASIZE |\
-				OBD_CONNECT_FLOCK_DEAD | \
-				OBD_CONNECT_DISP_STRIPE)
-
-#define OST_CONNECT_SUPPORTED  (OBD_CONNECT_SRVLOCK | OBD_CONNECT_GRANT | \
-				OBD_CONNECT_REQPORTAL | OBD_CONNECT_VERSION | \
-				OBD_CONNECT_TRUNCLOCK | OBD_CONNECT_INDEX | \
-				OBD_CONNECT_BRW_SIZE | OBD_CONNECT_OSS_CAPA | \
-				OBD_CONNECT_CANCELSET | OBD_CONNECT_AT | \
-				LRU_RESIZE_CONNECT_FLAG | OBD_CONNECT_CKSUM | \
-				OBD_CONNECT_RMT_CLIENT | \
-				OBD_CONNECT_RMT_CLIENT_FORCE | OBD_CONNECT_VBR | \
-				OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN | \
-				OBD_CONNECT_GRANT_SHRINK | OBD_CONNECT_FULL20 | \
-				OBD_CONNECT_64BITHASH | OBD_CONNECT_MAXBYTES | \
-				OBD_CONNECT_MAX_EASIZE | \
-				OBD_CONNECT_EINPROGRESS | \
-				OBD_CONNECT_JOBSTATS | \
-				OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_LVB_TYPE|\
-				OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_FID | \
-				OBD_CONNECT_PINGLESS)
-#define ECHO_CONNECT_SUPPORTED (0)
-#define MGS_CONNECT_SUPPORTED  (OBD_CONNECT_VERSION | OBD_CONNECT_AT | \
-				OBD_CONNECT_FULL20 | OBD_CONNECT_IMP_RECOV | \
-				OBD_CONNECT_MNE_SWAB | OBD_CONNECT_PINGLESS)
-
 /* Features required for this version of the client to work with server */
 #define CLIENT_CONNECT_MDT_REQD (OBD_CONNECT_IBITS | OBD_CONNECT_FID | \
 				 OBD_CONNECT_FULL20)
@@ -1334,7 +1294,8 @@ void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb);
 /* This structure is used for both request and reply.
  *
  * If we eventually have separate connect data for different types, which we
- * almost certainly will, then perhaps we stick a union in here. */
+ * almost certainly will, then perhaps we stick a union in here.
+ */
 struct obd_connect_data_v1 {
 	__u64 ocd_connect_flags; /* OBD_CONNECT_* per above */
 	__u32 ocd_version;	 /* lustre release version number */
@@ -1364,7 +1325,7 @@ struct obd_connect_data {
 	__u8  ocd_blocksize;     /* log2 of the backend filesystem blocksize */
 	__u8  ocd_inodespace;    /* log2 of the per-inode space consumption */
 	__u16 ocd_grant_extent;  /* per-extent grant overhead, in 1K blocks */
-	__u32 ocd_unused;	/* also fix lustre_swab_connect */
+	__u32 ocd_unused;	 /* also fix lustre_swab_connect */
 	__u64 ocd_transno;       /* first transno from client to be replayed */
 	__u32 ocd_group;	 /* MDS group on OST */
 	__u32 ocd_cksum_types;   /* supported checksum algorithms */
@@ -1374,7 +1335,8 @@ struct obd_connect_data {
 	/* Fields after ocd_maxbytes are only accessible by the receiver
 	 * if the corresponding flag in ocd_connect_flags is set. Accessing
 	 * any field after ocd_maxbytes on the receiver without a valid flag
-	 * may result in out-of-bound memory access and kernel oops. */
+	 * may result in out-of-bound memory access and kernel oops.
+	 */
 	__u64 padding1;	  /* added 2.1.0. also fix lustre_swab_connect */
 	__u64 padding2;	  /* added 2.1.0. also fix lustre_swab_connect */
 	__u64 padding3;	  /* added 2.1.0. also fix lustre_swab_connect */
@@ -1398,7 +1360,8 @@ struct obd_connect_data {
  * with senior engineers before starting to use a new field.  Then, submit
  * a small patch against EVERY branch that ONLY adds the new field along with
  * the matching OBD_CONNECT flag, so that can be approved and landed easily to
- * reserve the flag for future use. */
+ * reserve the flag for future use.
+ */
 
 void lustre_swab_connect(struct obd_connect_data *ocd);
 
@@ -1408,18 +1371,18 @@ void lustre_swab_connect(struct obd_connect_data *ocd);
  * Please update DECLARE_CKSUM_NAME/OBD_CKSUM_ALL in obd.h when adding a new
  * algorithm and also the OBD_FL_CKSUM* flags.
  */
-typedef enum {
+enum cksum_type {
 	OBD_CKSUM_CRC32  = 0x00000001,
 	OBD_CKSUM_ADLER  = 0x00000002,
 	OBD_CKSUM_CRC32C = 0x00000004,
-} cksum_type_t;
+};
 
 /*
  *   OST requests: OBDO & OBD request records
  */
 
 /* opcodes */
-typedef enum {
+enum ost_cmd {
 	OST_REPLY      =  0,       /* reply ? */
 	OST_GETATTR    =  1,
 	OST_SETATTR    =  2,
@@ -1440,14 +1403,14 @@ typedef enum {
 	OST_QUOTACTL   = 19,
 	OST_QUOTA_ADJUST_QUNIT = 20, /* not used since 2.4 */
 	OST_LAST_OPC
-} ost_cmd_t;
+};
 #define OST_FIRST_OPC  OST_REPLY
 
 enum obdo_flags {
 	OBD_FL_INLINEDATA   = 0x00000001,
 	OBD_FL_OBDMDEXISTS  = 0x00000002,
 	OBD_FL_DELORPHAN    = 0x00000004, /* if set in o_flags delete orphans */
-	OBD_FL_NORPC	= 0x00000008, /* set in o_flags do in OSC not OST */
+	OBD_FL_NORPC	    = 0x00000008, /* set in o_flags do in OSC not OST */
 	OBD_FL_IDONLY       = 0x00000010, /* set in o_flags only adjust obj id*/
 	OBD_FL_RECREATE_OBJS = 0x00000020, /* recreate missing obj */
 	OBD_FL_DEBUG_CHECK  = 0x00000040, /* echo client/server debug check */
@@ -1461,14 +1424,16 @@ enum obdo_flags {
 	OBD_FL_CKSUM_RSVD2  = 0x00008000, /* for future cksum types */
 	OBD_FL_CKSUM_RSVD3  = 0x00010000, /* for future cksum types */
 	OBD_FL_SHRINK_GRANT = 0x00020000, /* object shrink the grant */
-	OBD_FL_MMAP	 = 0x00040000, /* object is mmapped on the client.
+	OBD_FL_MMAP	    = 0x00040000, /* object is mmapped on the client.
 					   * XXX: obsoleted - reserved for old
-					   * clients prior than 2.2 */
+					   * clients prior than 2.2
+					   */
 	OBD_FL_RECOV_RESEND = 0x00080000, /* recoverable resent */
 	OBD_FL_NOSPC_BLK    = 0x00100000, /* no more block space on OST */
 
 	/* Note that while these checksum values are currently separate bits,
-	 * in 2.x we can actually allow all values from 1-31 if we wanted. */
+	 * in 2.x we can actually allow all values from 1-31 if we wanted.
+	 */
 	OBD_FL_CKSUM_ALL    = OBD_FL_CKSUM_CRC32 | OBD_FL_CKSUM_ADLER |
 			      OBD_FL_CKSUM_CRC32C,
 
@@ -1657,7 +1622,7 @@ lov_mds_md_max_stripe_count(size_t buf_size, __u32 lmm_magic)
 	}
 }
 
-#define OBD_MD_FLID	(0x00000001ULL) /* object ID */
+#define OBD_MD_FLID	   (0x00000001ULL) /* object ID */
 #define OBD_MD_FLATIME     (0x00000002ULL) /* access time */
 #define OBD_MD_FLMTIME     (0x00000004ULL) /* data modification time */
 #define OBD_MD_FLCTIME     (0x00000008ULL) /* change time */
@@ -1683,22 +1648,23 @@ lov_mds_md_max_stripe_count(size_t buf_size, __u32 lmm_magic)
 #define OBD_MD_FLGROUP     (0x01000000ULL) /* group */
 #define OBD_MD_FLFID       (0x02000000ULL) /* ->ost write inline fid */
 #define OBD_MD_FLEPOCH     (0x04000000ULL) /* ->ost write with ioepoch */
-					   /* ->mds if epoch opens or closes */
+					   /* ->mds if epoch opens or closes
+					    */
 #define OBD_MD_FLGRANT     (0x08000000ULL) /* ost preallocation space grant */
 #define OBD_MD_FLDIREA     (0x10000000ULL) /* dir's extended attribute data */
 #define OBD_MD_FLUSRQUOTA  (0x20000000ULL) /* over quota flags sent from ost */
 #define OBD_MD_FLGRPQUOTA  (0x40000000ULL) /* over quota flags sent from ost */
 #define OBD_MD_FLMODEASIZE (0x80000000ULL) /* EA size will be changed */
 
-#define OBD_MD_MDS	 (0x0000000100000000ULL) /* where an inode lives on */
+#define OBD_MD_MDS	   (0x0000000100000000ULL) /* where an inode lives on */
 #define OBD_MD_REINT       (0x0000000200000000ULL) /* reintegrate oa */
-#define OBD_MD_MEA	 (0x0000000400000000ULL) /* CMD split EA  */
+#define OBD_MD_MEA	   (0x0000000400000000ULL) /* CMD split EA  */
 #define OBD_MD_TSTATE      (0x0000000800000000ULL) /* transient state field */
 
 #define OBD_MD_FLXATTR       (0x0000001000000000ULL) /* xattr */
 #define OBD_MD_FLXATTRLS     (0x0000002000000000ULL) /* xattr list */
 #define OBD_MD_FLXATTRRM     (0x0000004000000000ULL) /* xattr remove */
-#define OBD_MD_FLACL	 (0x0000008000000000ULL) /* ACL */
+#define OBD_MD_FLACL	     (0x0000008000000000ULL) /* ACL */
 #define OBD_MD_FLRMTPERM     (0x0000010000000000ULL) /* remote permission */
 #define OBD_MD_FLMDSCAPA     (0x0000020000000000ULL) /* MDS capability */
 #define OBD_MD_FLOSSCAPA     (0x0000040000000000ULL) /* OSS capability */
@@ -1707,7 +1673,8 @@ lov_mds_md_max_stripe_count(size_t buf_size, __u32 lmm_magic)
 #define OBD_MD_FLGETATTRLOCK (0x0000200000000000ULL) /* Get IOEpoch attributes
 						      * under lock; for xattr
 						      * requests means the
-						      * client holds the lock */
+						      * client holds the lock
+						      */
 #define OBD_MD_FLOBJCOUNT    (0x0000400000000000ULL) /* for multiple destroy */
 
 #define OBD_MD_FLRMTLSETFACL (0x0001000000000000ULL) /* lfs lsetfacl case */
@@ -1727,7 +1694,8 @@ lov_mds_md_max_stripe_count(size_t buf_size, __u32 lmm_magic)
 #define OBD_MD_FLXATTRALL (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS)
 
 /* don't forget obdo_fid which is way down at the bottom so it can
- * come after the definition of llog_cookie */
+ * come after the definition of llog_cookie
+ */
 
 enum hss_valid {
 	HSS_SETMASK	= 0x01,
@@ -1749,19 +1717,20 @@ void lustre_swab_obd_statfs(struct obd_statfs *os);
 
 /* ost_body.data values for OST_BRW */
 
-#define OBD_BRW_READ	    0x01
-#define OBD_BRW_WRITE	   0x02
-#define OBD_BRW_RWMASK	  (OBD_BRW_READ | OBD_BRW_WRITE)
-#define OBD_BRW_SYNC	    0x08 /* this page is a part of synchronous
+#define OBD_BRW_READ		0x01
+#define OBD_BRW_WRITE		0x02
+#define OBD_BRW_RWMASK		(OBD_BRW_READ | OBD_BRW_WRITE)
+#define OBD_BRW_SYNC		0x08 /* this page is a part of synchronous
 				      * transfer and is not accounted in
-				      * the grant. */
-#define OBD_BRW_CHECK	   0x10
+				      * the grant.
+				      */
+#define OBD_BRW_CHECK		0x10
 #define OBD_BRW_FROM_GRANT      0x20 /* the osc manages this under llite */
-#define OBD_BRW_GRANTED	 0x40 /* the ost manages this */
-#define OBD_BRW_NOCACHE	 0x80 /* this page is a part of non-cached IO */
-#define OBD_BRW_NOQUOTA	0x100
-#define OBD_BRW_SRVLOCK	0x200 /* Client holds no lock over this page */
-#define OBD_BRW_ASYNC	  0x400 /* Server may delay commit to disk */
+#define OBD_BRW_GRANTED		0x40 /* the ost manages this */
+#define OBD_BRW_NOCACHE		0x80 /* this page is a part of non-cached IO */
+#define OBD_BRW_NOQUOTA	       0x100
+#define OBD_BRW_SRVLOCK	       0x200 /* Client holds no lock over this page */
+#define OBD_BRW_ASYNC	       0x400 /* Server may delay commit to disk */
 #define OBD_BRW_MEMALLOC       0x800 /* Client runs in the "kswapd" context */
 #define OBD_BRW_OVER_USRQUOTA 0x1000 /* Running out of user quota */
 #define OBD_BRW_OVER_GRPQUOTA 0x2000 /* Running out of group quota */
@@ -1775,7 +1744,8 @@ struct obd_ioobj {
 	struct ost_id	ioo_oid;	/* object ID, if multi-obj BRW */
 	__u32		ioo_max_brw;	/* low 16 bits were o_mode before 2.4,
 					 * now (PTLRPC_BULK_OPS_COUNT - 1) in
-					 * high 16 bits in 2.4 and later */
+					 * high 16 bits in 2.4 and later
+					 */
 	__u32		ioo_bufcnt;	/* number of niobufs for this object */
 };
 
@@ -1799,7 +1769,8 @@ void lustre_swab_niobuf_remote(struct niobuf_remote *nbr);
 /* lock value block communicated between the filter and llite */
 
 /* OST_LVB_ERR_INIT is needed because the return code in rc is
- * negative, i.e. because ((MASK + rc) & MASK) != MASK. */
+ * negative, i.e. because ((MASK + rc) & MASK) != MASK.
+ */
 #define OST_LVB_ERR_INIT 0xffbadbad80000000ULL
 #define OST_LVB_ERR_MASK 0xffbadbad00000000ULL
 #define OST_LVB_IS_ERR(blocks)					  \
@@ -1836,23 +1807,12 @@ void lustre_swab_ost_lvb(struct ost_lvb *lvb);
  *   lquota data structures
  */
 
-#ifndef QUOTABLOCK_BITS
-#define QUOTABLOCK_BITS 10
-#endif
-
-#ifndef QUOTABLOCK_SIZE
-#define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS)
-#endif
-
-#ifndef toqb
-#define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS)
-#endif
-
 /* The lquota_id structure is an union of all the possible identifier types that
  * can be used with quota, this includes:
  * - 64-bit user ID
  * - 64-bit group ID
- * - a FID which can be used for per-directory quota in the future */
+ * - a FID which can be used for per-directory quota in the future
+ */
 union lquota_id {
 	struct lu_fid	qid_fid; /* FID for per-directory quota */
 	__u64		qid_uid; /* user identifier */
@@ -1889,89 +1849,6 @@ do {					\
 	Q_COPY(out, in, qc_dqblk);	\
 } while (0)
 
-/* Body of quota request used for quota acquire/release RPCs between quota
- * master (aka QMT) and slaves (ak QSD). */
-struct quota_body {
-	struct lu_fid	qb_fid;     /* FID of global index packing the pool ID
-				      * and type (data or metadata) as well as
-				      * the quota type (user or group). */
-	union lquota_id	qb_id;      /* uid or gid or directory FID */
-	__u32		qb_flags;   /* see below */
-	__u32		qb_padding;
-	__u64		qb_count;   /* acquire/release count (kbytes/inodes) */
-	__u64		qb_usage;   /* current slave usage (kbytes/inodes) */
-	__u64		qb_slv_ver; /* slave index file version */
-	struct lustre_handle	qb_lockh;     /* per-ID lock handle */
-	struct lustre_handle	qb_glb_lockh; /* global lock handle */
-	__u64		qb_padding1[4];
-};
-
-/* When the quota_body is used in the reply of quota global intent
- * lock (IT_QUOTA_CONN) reply, qb_fid contains slave index file FID. */
-#define qb_slv_fid	qb_fid
-/* qb_usage is the current qunit (in kbytes/inodes) when quota_body is used in
- * quota reply */
-#define qb_qunit	qb_usage
-
-#define QUOTA_DQACQ_FL_ACQ	0x1  /* acquire quota */
-#define QUOTA_DQACQ_FL_PREACQ	0x2  /* pre-acquire */
-#define QUOTA_DQACQ_FL_REL	0x4  /* release quota */
-#define QUOTA_DQACQ_FL_REPORT	0x8  /* report usage */
-
-void lustre_swab_quota_body(struct quota_body *b);
-
-/* Quota types currently supported */
-enum {
-	LQUOTA_TYPE_USR	= 0x00, /* maps to USRQUOTA */
-	LQUOTA_TYPE_GRP	= 0x01, /* maps to GRPQUOTA */
-	LQUOTA_TYPE_MAX
-};
-
-/* There are 2 different resource types on which a quota limit can be enforced:
- * - inodes on the MDTs
- * - blocks on the OSTs */
-enum {
-	LQUOTA_RES_MD		= 0x01, /* skip 0 to avoid null oid in FID */
-	LQUOTA_RES_DT		= 0x02,
-	LQUOTA_LAST_RES,
-	LQUOTA_FIRST_RES	= LQUOTA_RES_MD
-};
-
-#define LQUOTA_NR_RES (LQUOTA_LAST_RES - LQUOTA_FIRST_RES + 1)
-
-/*
- * Space accounting support
- * Format of an accounting record, providing disk usage information for a given
- * user or group
- */
-struct lquota_acct_rec { /* 16 bytes */
-	__u64 bspace;  /* current space in use */
-	__u64 ispace;  /* current # inodes in use */
-};
-
-/*
- * Global quota index support
- * Format of a global record, providing global quota settings for a given quota
- * identifier
- */
-struct lquota_glb_rec { /* 32 bytes */
-	__u64 qbr_hardlimit; /* quota hard limit, in #inodes or kbytes */
-	__u64 qbr_softlimit; /* quota soft limit, in #inodes or kbytes */
-	__u64 qbr_time;      /* grace time, in seconds */
-	__u64 qbr_granted;   /* how much is granted to slaves, in #inodes or
-			      * kbytes */
-};
-
-/*
- * Slave index support
- * Format of a slave record, recording how much space is granted to a given
- * slave
- */
-struct lquota_slv_rec { /* 8 bytes */
-	__u64 qsr_granted; /* space granted to the slave for the key=ID,
-			    * in #inodes or kbytes */
-};
-
 /* Data structures associated with the quota locks */
 
 /* Glimpse descriptor used for the index & per-ID quota locks */
@@ -1985,9 +1862,6 @@ struct ldlm_gl_lquota_desc {
 	__u64		gl_pad2;
 };
 
-#define gl_qunit	gl_hardlimit /* current qunit value used when
-				      * glimpsing per-ID quota locks */
-
 /* quota glimpse flags */
 #define LQUOTA_FL_EDQUOT 0x1 /* user/group out of quota space on QMT */
 
@@ -2002,15 +1876,12 @@ struct lquota_lvb {
 
 void lustre_swab_lquota_lvb(struct lquota_lvb *lvb);
 
-/* LVB used with global quota lock */
-#define lvb_glb_ver  lvb_id_may_rel /* current version of the global index */
-
 /* op codes */
-typedef enum {
+enum quota_cmd {
 	QUOTA_DQACQ	= 601,
 	QUOTA_DQREL	= 602,
 	QUOTA_LAST_OPC
-} quota_cmd_t;
+};
 #define QUOTA_FIRST_OPC	QUOTA_DQACQ
 
 /*
@@ -2018,7 +1889,7 @@ typedef enum {
  */
 
 /* opcodes */
-typedef enum {
+enum mds_cmd {
 	MDS_GETATTR		= 33,
 	MDS_GETATTR_NAME	= 34,
 	MDS_CLOSE		= 35,
@@ -2049,23 +1920,15 @@ typedef enum {
 	MDS_HSM_CT_UNREGISTER	= 60,
 	MDS_SWAP_LAYOUTS	= 61,
 	MDS_LAST_OPC
-} mds_cmd_t;
+};
 
 #define MDS_FIRST_OPC    MDS_GETATTR
 
-/* opcodes for object update */
-typedef enum {
-	UPDATE_OBJ	= 1000,
-	UPDATE_LAST_OPC
-} update_cmd_t;
-
-#define UPDATE_FIRST_OPC    UPDATE_OBJ
-
 /*
  * Do not exceed 63
  */
 
-typedef enum {
+enum mdt_reint_cmd {
 	REINT_SETATTR  = 1,
 	REINT_CREATE   = 2,
 	REINT_LINK     = 3,
@@ -2074,9 +1937,9 @@ typedef enum {
 	REINT_OPEN     = 6,
 	REINT_SETXATTR = 7,
 	REINT_RMENTRY  = 8,
-//      REINT_WRITE    = 9,
+/*      REINT_WRITE    = 9, */
 	REINT_MAX
-} mds_reint_t, mdt_reint_t;
+};
 
 void lustre_swab_generic_32s(__u32 *val);
 
@@ -2097,7 +1960,8 @@ void lustre_swab_generic_32s(__u32 *val);
 /* INODE LOCK PARTS */
 #define MDS_INODELOCK_LOOKUP 0x000001	/* For namespace, dentry etc, and also
 					 * was used to protect permission (mode,
-					 * owner, group etc) before 2.4. */
+					 * owner, group etc) before 2.4.
+					 */
 #define MDS_INODELOCK_UPDATE 0x000002	/* size, links, timestamps */
 #define MDS_INODELOCK_OPEN   0x000004	/* For opened files */
 #define MDS_INODELOCK_LAYOUT 0x000008	/* for layout */
@@ -2110,7 +1974,8 @@ void lustre_swab_generic_32s(__u32 *val);
  * For local directory, MDT will always grant UPDATE_LOCK|PERM_LOCK together.
  * For Remote directory, the master MDT, where the remote directory is, will
  * grant UPDATE_LOCK|PERM_LOCK, and the remote MDT, where the name entry is,
- * will grant LOOKUP_LOCK. */
+ * will grant LOOKUP_LOCK.
+ */
 #define MDS_INODELOCK_PERM   0x000010
 #define MDS_INODELOCK_XATTR  0x000020	/* extended attributes */
 
@@ -2120,7 +1985,8 @@ void lustre_swab_generic_32s(__u32 *val);
 
 /* NOTE: until Lustre 1.8.7/2.1.1 the fid_ver() was packed into name[2],
  * but was moved into name[1] along with the OID to avoid consuming the
- * name[2,3] fields that need to be used for the quota id (also a FID). */
+ * name[2,3] fields that need to be used for the quota id (also a FID).
+ */
 enum {
 	LUSTRE_RES_ID_SEQ_OFF = 0,
 	LUSTRE_RES_ID_VER_OID_OFF = 1,
@@ -2156,7 +2022,8 @@ enum md_op_flags {
 #define LUSTRE_BFLAG_UNCOMMITTED_WRITES   0x1
 
 /* these should be identical to their EXT4_*_FL counterparts, they are
- * redefined here only to avoid dragging in fs/ext4/ext4.h */
+ * redefined here only to avoid dragging in fs/ext4/ext4.h
+ */
 #define LUSTRE_SYNC_FL	 0x00000008 /* Synchronous updates */
 #define LUSTRE_IMMUTABLE_FL    0x00000010 /* Immutable file */
 #define LUSTRE_APPEND_FL       0x00000020 /* writes to file may only append */
@@ -2168,15 +2035,14 @@ enum md_op_flags {
  * protocol equivalents of LDISKFS_*_FL values stored on disk, while
  * the S_* flags are kernel-internal values that change between kernel
  * versions.  These flags are set/cleared via FSFILT_IOC_{GET,SET}_FLAGS.
- * See b=16526 for a full history. */
+ * See b=16526 for a full history.
+ */
 static inline int ll_ext_to_inode_flags(int flags)
 {
 	return (((flags & LUSTRE_SYNC_FL)      ? S_SYNC      : 0) |
 		((flags & LUSTRE_NOATIME_FL)   ? S_NOATIME   : 0) |
 		((flags & LUSTRE_APPEND_FL)    ? S_APPEND    : 0) |
-#if defined(S_DIRSYNC)
 		((flags & LUSTRE_DIRSYNC_FL)   ? S_DIRSYNC   : 0) |
-#endif
 		((flags & LUSTRE_IMMUTABLE_FL) ? S_IMMUTABLE : 0));
 }
 
@@ -2185,9 +2051,7 @@ static inline int ll_inode_to_ext_flags(int iflags)
 	return (((iflags & S_SYNC)      ? LUSTRE_SYNC_FL      : 0) |
 		((iflags & S_NOATIME)   ? LUSTRE_NOATIME_FL   : 0) |
 		((iflags & S_APPEND)    ? LUSTRE_APPEND_FL    : 0) |
-#if defined(S_DIRSYNC)
 		((iflags & S_DIRSYNC)   ? LUSTRE_DIRSYNC_FL   : 0) |
-#endif
 		((iflags & S_IMMUTABLE) ? LUSTRE_IMMUTABLE_FL : 0));
 }
 
@@ -2207,9 +2071,10 @@ struct mdt_body {
 	__s64	  ctime;
 	__u64	  blocks; /* XID, in the case of MDS_READPAGE */
 	__u64	  ioepoch;
-	__u64	       t_state; /* transient file state defined in
-				 * enum md_transient_state
-				 * was "ino" until 2.4.0 */
+	__u64	  t_state; /* transient file state defined in
+			    * enum md_transient_state
+			    * was "ino" until 2.4.0
+			    */
 	__u32	  fsuid;
 	__u32	  fsgid;
 	__u32	  capability;
@@ -2219,7 +2084,7 @@ struct mdt_body {
 	__u32	  flags; /* from vfs for pin/unpin, LUSTRE_BFLAG close */
 	__u32	  rdev;
 	__u32	  nlink; /* #bytes to read in the case of MDS_READPAGE */
-	__u32	       unused2; /* was "generation" until 2.4.0 */
+	__u32	  unused2; /* was "generation" until 2.4.0 */
 	__u32	  suppgid;
 	__u32	  eadatasize;
 	__u32	  aclsize;
@@ -2256,7 +2121,8 @@ enum {
 };
 
 /* inode access permission for remote user, the inode info are omitted,
- * for client knows them. */
+ * for client knows them.
+ */
 struct mdt_remote_perm {
 	__u32	   rp_uid;
 	__u32	   rp_gid;
@@ -2306,13 +2172,13 @@ void lustre_swab_mdt_rec_setattr(struct mdt_rec_setattr *sa);
  * since the client and MDS may run different kernels (see bug 13828)
  * Therefore, we should only use MDS_ATTR_* attributes for sa_valid.
  */
-#define MDS_ATTR_MODE	  0x1ULL /* = 1 */
-#define MDS_ATTR_UID	   0x2ULL /* = 2 */
-#define MDS_ATTR_GID	   0x4ULL /* = 4 */
-#define MDS_ATTR_SIZE	  0x8ULL /* = 8 */
-#define MDS_ATTR_ATIME	0x10ULL /* = 16 */
-#define MDS_ATTR_MTIME	0x20ULL /* = 32 */
-#define MDS_ATTR_CTIME	0x40ULL /* = 64 */
+#define MDS_ATTR_MODE	       0x1ULL /* = 1 */
+#define MDS_ATTR_UID	       0x2ULL /* = 2 */
+#define MDS_ATTR_GID	       0x4ULL /* = 4 */
+#define MDS_ATTR_SIZE	       0x8ULL /* = 8 */
+#define MDS_ATTR_ATIME	      0x10ULL /* = 16 */
+#define MDS_ATTR_MTIME	      0x20ULL /* = 32 */
+#define MDS_ATTR_CTIME	      0x40ULL /* = 64 */
 #define MDS_ATTR_ATIME_SET    0x80ULL /* = 128 */
 #define MDS_ATTR_MTIME_SET   0x100ULL /* = 256 */
 #define MDS_ATTR_FORCE       0x200ULL /* = 512, Not a change, but a change it */
@@ -2320,14 +2186,11 @@ void lustre_swab_mdt_rec_setattr(struct mdt_rec_setattr *sa);
 #define MDS_ATTR_KILL_SUID   0x800ULL /* = 2048 */
 #define MDS_ATTR_KILL_SGID  0x1000ULL /* = 4096 */
 #define MDS_ATTR_CTIME_SET  0x2000ULL /* = 8192 */
-#define MDS_ATTR_FROM_OPEN  0x4000ULL /* = 16384, called from open path, ie O_TRUNC */
+#define MDS_ATTR_FROM_OPEN  0x4000ULL /* = 16384, called from open path,
+				       * ie O_TRUNC
+				       */
 #define MDS_ATTR_BLOCKS     0x8000ULL /* = 32768 */
 
-#ifndef FMODE_READ
-#define FMODE_READ	       00000001
-#define FMODE_WRITE	      00000002
-#endif
-
 #define MDS_FMODE_CLOSED	 00000000
 #define MDS_FMODE_EXEC	   00000004
 /* IO Epoch is opened on a closed file. */
@@ -2354,9 +2217,10 @@ void lustre_swab_mdt_rec_setattr(struct mdt_rec_setattr *sa);
 					   * We do not support JOIN FILE
 					   * anymore, reserve this flags
 					   * just for preventing such bit
-					   * to be reused. */
+					   * to be reused.
+					   */
 
-#define MDS_OPEN_LOCK	 04000000000 /* This open requires open lock */
+#define MDS_OPEN_LOCK	      04000000000 /* This open requires open lock */
 #define MDS_OPEN_HAS_EA      010000000000 /* specify object create pattern */
 #define MDS_OPEN_HAS_OBJS    020000000000 /* Just set the EA the obj exist */
 #define MDS_OPEN_NORESTORE  0100000000000ULL /* Do not restore file at open */
@@ -2409,7 +2273,8 @@ struct mdt_rec_create {
 	__u32	   cr_bias;
 	/* use of helpers set/get_mrc_cr_flags() is needed to access
 	 * 64 bits cr_flags [cr_flags_l, cr_flags_h], this is done to
-	 * extend cr_flags size without breaking 1.8 compat */
+	 * extend cr_flags size without breaking 1.8 compat
+	 */
 	__u32	   cr_flags_l;     /* for use with open, low  32 bits  */
 	__u32	   cr_flags_h;     /* for use with open, high 32 bits */
 	__u32	   cr_umask;       /* umask for create */
@@ -2630,7 +2495,8 @@ enum seq_op {
 #define LOV_MAX_UUID_BUFFER_SIZE  8192
 /* The size of the buffer the lov/mdc reserves for the
  * array of UUIDs returned by the MDS.  With the current
- * protocol, this will limit the max number of OSTs per LOV */
+ * protocol, this will limit the max number of OSTs per LOV
+ */
 
 #define LOV_DESC_MAGIC 0xB0CCDE5C
 #define LOV_DESC_QOS_MAXAGE_DEFAULT 5  /* Seconds */
@@ -2639,13 +2505,13 @@ enum seq_op {
 /* LOV settings descriptor (should only contain static info) */
 struct lov_desc {
 	__u32 ld_tgt_count;		/* how many OBD's */
-	__u32 ld_active_tgt_count;	 /* how many active */
-	__u32 ld_default_stripe_count;     /* how many objects are used */
-	__u32 ld_pattern;		  /* default PATTERN_RAID0 */
-	__u64 ld_default_stripe_size;      /* in bytes */
-	__u64 ld_default_stripe_offset;    /* in bytes */
+	__u32 ld_active_tgt_count;	/* how many active */
+	__u32 ld_default_stripe_count;  /* how many objects are used */
+	__u32 ld_pattern;		/* default PATTERN_RAID0 */
+	__u64 ld_default_stripe_size;   /* in bytes */
+	__u64 ld_default_stripe_offset; /* in bytes */
 	__u32 ld_padding_0;		/* unused */
-	__u32 ld_qos_maxage;	       /* in second */
+	__u32 ld_qos_maxage;		/* in second */
 	__u32 ld_padding_1;		/* also fix lustre_swab_lov_desc */
 	__u32 ld_padding_2;		/* also fix lustre_swab_lov_desc */
 	struct obd_uuid ld_uuid;
@@ -2659,7 +2525,7 @@ void lustre_swab_lov_desc(struct lov_desc *ld);
  *   LDLM requests:
  */
 /* opcodes -- MUST be distinct from OST/MDS opcodes */
-typedef enum {
+enum ldlm_cmd {
 	LDLM_ENQUEUE     = 101,
 	LDLM_CONVERT     = 102,
 	LDLM_CANCEL      = 103,
@@ -2668,7 +2534,7 @@ typedef enum {
 	LDLM_GL_CALLBACK = 106,
 	LDLM_SET_INFO    = 107,
 	LDLM_LAST_OPC
-} ldlm_cmd_t;
+};
 #define LDLM_FIRST_OPC LDLM_ENQUEUE
 
 #define RES_NAME_SIZE 4
@@ -2687,7 +2553,7 @@ static inline int ldlm_res_eq(const struct ldlm_res_id *res0,
 }
 
 /* lock types */
-typedef enum {
+enum ldlm_mode {
 	LCK_MINMODE = 0,
 	LCK_EX      = 1,
 	LCK_PW      = 2,
@@ -2698,17 +2564,17 @@ typedef enum {
 	LCK_GROUP   = 64,
 	LCK_COS     = 128,
 	LCK_MAXMODE
-} ldlm_mode_t;
+};
 
 #define LCK_MODE_NUM    8
 
-typedef enum {
+enum ldlm_type {
 	LDLM_PLAIN     = 10,
 	LDLM_EXTENT    = 11,
 	LDLM_FLOCK     = 12,
 	LDLM_IBITS     = 13,
 	LDLM_MAX_TYPE
-} ldlm_type_t;
+};
 
 #define LDLM_MIN_TYPE LDLM_PLAIN
 
@@ -2747,7 +2613,8 @@ struct ldlm_flock_wire {
  * the first fields of the ldlm_flock structure because there is only
  * one ldlm_swab routine to process the ldlm_policy_data_t union. if
  * this ever changes we will need to swab the union differently based
- * on the resource type. */
+ * on the resource type.
+ */
 
 typedef union {
 	struct ldlm_extent l_extent;
@@ -2768,15 +2635,15 @@ struct ldlm_intent {
 void lustre_swab_ldlm_intent(struct ldlm_intent *i);
 
 struct ldlm_resource_desc {
-	ldlm_type_t lr_type;
+	enum ldlm_type lr_type;
 	__u32 lr_padding;       /* also fix lustre_swab_ldlm_resource_desc */
 	struct ldlm_res_id lr_name;
 };
 
 struct ldlm_lock_desc {
 	struct ldlm_resource_desc l_resource;
-	ldlm_mode_t l_req_mode;
-	ldlm_mode_t l_granted_mode;
+	enum ldlm_mode l_req_mode;
+	enum ldlm_mode l_granted_mode;
 	ldlm_wire_policy_data_t l_policy_data;
 };
 
@@ -2793,7 +2660,8 @@ struct ldlm_request {
 void lustre_swab_ldlm_request(struct ldlm_request *rq);
 
 /* If LDLM_ENQUEUE, 1 slot is already occupied, 1 is available.
- * Otherwise, 2 are available. */
+ * Otherwise, 2 are available.
+ */
 #define ldlm_request_bufsize(count, type)				\
 ({								      \
 	int _avail = LDLM_LOCKREQ_HANDLES;			      \
@@ -2820,7 +2688,7 @@ void lustre_swab_ldlm_reply(struct ldlm_reply *r);
 /*
  * Opcodes for mountconf (mgs and mgc)
  */
-typedef enum {
+enum mgs_cmd {
 	MGS_CONNECT = 250,
 	MGS_DISCONNECT,
 	MGS_EXCEPTION,	 /* node died, etc. */
@@ -2829,7 +2697,7 @@ typedef enum {
 	MGS_SET_INFO,
 	MGS_CONFIG_READ,
 	MGS_LAST_OPC
-} mgs_cmd_t;
+};
 #define MGS_FIRST_OPC MGS_CONNECT
 
 #define MGS_PARAM_MAXLEN 1024
@@ -2918,13 +2786,13 @@ void lustre_swab_cfg_marker(struct cfg_marker *marker, int swab, int size);
  * Opcodes for multiple servers.
  */
 
-typedef enum {
+enum obd_cmd {
 	OBD_PING = 400,
 	OBD_LOG_CANCEL,
 	OBD_QC_CALLBACK,
 	OBD_IDX_READ,
 	OBD_LAST_OPC
-} obd_cmd_t;
+};
 #define OBD_FIRST_OPC OBD_PING
 
 /* catalog of log objects */
@@ -2933,7 +2801,7 @@ typedef enum {
 struct llog_logid {
 	struct ost_id		lgl_oi;
 	__u32		   lgl_ogen;
-} __attribute__((packed));
+} __packed;
 
 /** Records written to the CATALOGS list */
 #define CATLIST "CATALOGS"
@@ -2942,7 +2810,7 @@ struct llog_catid {
 	__u32		   lci_padding1;
 	__u32		   lci_padding2;
 	__u32		   lci_padding3;
-} __attribute__((packed));
+} __packed;
 
 /* Log data record types - there is no specific reason that these need to
  * be related to the RPC opcodes, but no reason not to (may be handy later?)
@@ -2950,7 +2818,7 @@ struct llog_catid {
 #define LLOG_OP_MAGIC 0x10600000
 #define LLOG_OP_MASK  0xfff00000
 
-typedef enum {
+enum llog_op_type {
 	LLOG_PAD_MAGIC		= LLOG_OP_MAGIC | 0x00000,
 	OST_SZ_REC		= LLOG_OP_MAGIC | 0x00f00,
 	/* OST_RAID1_REC	= LLOG_OP_MAGIC | 0x01000, never used */
@@ -2970,7 +2838,7 @@ typedef enum {
 	HSM_AGENT_REC		= LLOG_OP_MAGIC | 0x80000,
 	LLOG_HDR_MAGIC		= LLOG_OP_MAGIC | 0x45539,
 	LLOG_LOGID_MAGIC	= LLOG_OP_MAGIC | 0x4553b,
-} llog_op_type;
+};
 
 #define LLOG_REC_HDR_NEEDS_SWABBING(r) \
 	(((r)->lrh_type & __swab32(LLOG_OP_MASK)) == __swab32(LLOG_OP_MAGIC))
@@ -3006,7 +2874,7 @@ struct llog_logid_rec {
 	__u64			lid_padding2;
 	__u64			lid_padding3;
 	struct llog_rec_tail	lid_tail;
-} __attribute__((packed));
+} __packed;
 
 struct llog_unlink_rec {
 	struct llog_rec_hdr	lur_hdr;
@@ -3014,7 +2882,7 @@ struct llog_unlink_rec {
 	__u32			lur_oseq;
 	__u32			lur_count;
 	struct llog_rec_tail	lur_tail;
-} __attribute__((packed));
+} __packed;
 
 struct llog_unlink64_rec {
 	struct llog_rec_hdr	lur_hdr;
@@ -3024,7 +2892,7 @@ struct llog_unlink64_rec {
 	__u64			lur_padding2;
 	__u64			lur_padding3;
 	struct llog_rec_tail    lur_tail;
-} __attribute__((packed));
+} __packed;
 
 struct llog_setattr64_rec {
 	struct llog_rec_hdr	lsr_hdr;
@@ -3035,7 +2903,7 @@ struct llog_setattr64_rec {
 	__u32			lsr_gid_h;
 	__u64			lsr_padding;
 	struct llog_rec_tail    lsr_tail;
-} __attribute__((packed));
+} __packed;
 
 struct llog_size_change_rec {
 	struct llog_rec_hdr	lsc_hdr;
@@ -3045,16 +2913,7 @@ struct llog_size_change_rec {
 	__u64			lsc_padding2;
 	__u64			lsc_padding3;
 	struct llog_rec_tail	lsc_tail;
-} __attribute__((packed));
-
-#define CHANGELOG_MAGIC 0xca103000
-
-/** \a changelog_rec_type's that can't be masked */
-#define CHANGELOG_MINMASK (1 << CL_MARK)
-/** bits covering all \a changelog_rec_type's */
-#define CHANGELOG_ALLMASK 0XFFFFFFFF
-/** default \a changelog_rec_type mask */
-#define CHANGELOG_DEFMASK CHANGELOG_ALLMASK & ~(1 << CL_ATIME | 1 << CL_CLOSE)
+} __packed;
 
 /* changelog llog name, needed by client replicators */
 #define CHANGELOG_CATALOG "changelog_catalog"
@@ -3062,22 +2921,20 @@ struct llog_size_change_rec {
 struct changelog_setinfo {
 	__u64 cs_recno;
 	__u32 cs_id;
-} __attribute__((packed));
+} __packed;
 
 /** changelog record */
 struct llog_changelog_rec {
 	struct llog_rec_hdr  cr_hdr;
 	struct changelog_rec cr;
 	struct llog_rec_tail cr_tail; /**< for_sizezof_only */
-} __attribute__((packed));
+} __packed;
 
 struct llog_changelog_ext_rec {
 	struct llog_rec_hdr      cr_hdr;
 	struct changelog_ext_rec cr;
 	struct llog_rec_tail     cr_tail; /**< for_sizezof_only */
-} __attribute__((packed));
-
-#define CHANGELOG_USER_PREFIX "cl"
+} __packed;
 
 struct llog_changelog_user_rec {
 	struct llog_rec_hdr   cur_hdr;
@@ -3085,7 +2942,7 @@ struct llog_changelog_user_rec {
 	__u32		 cur_padding;
 	__u64		 cur_endrec;
 	struct llog_rec_tail  cur_tail;
-} __attribute__((packed));
+} __packed;
 
 enum agent_req_status {
 	ARS_WAITING,
@@ -3123,21 +2980,22 @@ struct llog_agent_req_rec {
 	struct llog_rec_hdr	arr_hdr;	/**< record header */
 	__u32			arr_status;	/**< status of the request */
 						/* must match enum
-						 * agent_req_status */
+						 * agent_req_status
+						 */
 	__u32			arr_archive_id;	/**< backend archive number */
 	__u64			arr_flags;	/**< req flags */
-	__u64			arr_compound_id;	/**< compound cookie */
+	__u64			arr_compound_id;/**< compound cookie */
 	__u64			arr_req_create;	/**< req. creation time */
 	__u64			arr_req_change;	/**< req. status change time */
 	struct hsm_action_item	arr_hai;	/**< req. to the agent */
-	struct llog_rec_tail	arr_tail; /**< record tail for_sizezof_only */
-} __attribute__((packed));
+	struct llog_rec_tail	arr_tail;   /**< record tail for_sizezof_only */
+} __packed;
 
 /* Old llog gen for compatibility */
 struct llog_gen {
 	__u64 mnt_cnt;
 	__u64 conn_cnt;
-} __attribute__((packed));
+} __packed;
 
 struct llog_gen_rec {
 	struct llog_rec_hdr	lgr_hdr;
@@ -3175,19 +3033,21 @@ struct llog_log_hdr {
 	__u32		   llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23];
 	__u32		   llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)];
 	struct llog_rec_tail    llh_tail;
-} __attribute__((packed));
+} __packed;
 
 #define LLOG_BITMAP_SIZE(llh)  (__u32)((llh->llh_hdr.lrh_len -		\
 					llh->llh_bitmap_offset -	\
 					sizeof(llh->llh_tail)) * 8)
 
-/** log cookies are used to reference a specific log file and a record therein */
+/** log cookies are used to reference a specific log file and a record
+ * therein
+ */
 struct llog_cookie {
 	struct llog_logid       lgc_lgl;
 	__u32		   lgc_subsys;
 	__u32		   lgc_index;
 	__u32		   lgc_padding;
-} __attribute__((packed));
+} __packed;
 
 /** llog protocol */
 enum llogd_rpc_ops {
@@ -3196,7 +3056,7 @@ enum llogd_rpc_ops {
 	LLOG_ORIGIN_HANDLE_READ_HEADER  = 503,
 	LLOG_ORIGIN_HANDLE_WRITE_REC    = 504,
 	LLOG_ORIGIN_HANDLE_CLOSE	= 505,
-	LLOG_ORIGIN_CONNECT	     = 506,
+	LLOG_ORIGIN_CONNECT		= 506,
 	LLOG_CATINFO			= 507,  /* deprecated */
 	LLOG_ORIGIN_HANDLE_PREV_BLOCK   = 508,
 	LLOG_ORIGIN_HANDLE_DESTROY      = 509,  /* for destroy llog object*/
@@ -3212,13 +3072,13 @@ struct llogd_body {
 	__u32 lgd_saved_index;
 	__u32 lgd_len;
 	__u64 lgd_cur_offset;
-} __attribute__((packed));
+} __packed;
 
 struct llogd_conn_body {
 	struct llog_gen	 lgdc_gen;
 	struct llog_logid       lgdc_logid;
 	__u32		   lgdc_ctxt_idx;
-} __attribute__((packed));
+} __packed;
 
 /* Note: 64-bit types are 64-bit aligned in structure */
 struct obdo {
@@ -3245,17 +3105,18 @@ struct obdo {
 	__u64		   o_ioepoch;      /* epoch in ost writes */
 	__u32		   o_stripe_idx;   /* holds stripe idx */
 	__u32		   o_parent_ver;
-	struct lustre_handle    o_handle;       /* brw: lock handle to prolong
-						 * locks */
-	struct llog_cookie      o_lcookie;      /* destroy: unlink cookie from
-						 * MDS */
+	struct lustre_handle    o_handle;  /* brw: lock handle to prolong locks
+					    */
+	struct llog_cookie      o_lcookie; /* destroy: unlink cookie from MDS
+					    */
 	__u32			o_uid_h;
 	__u32			o_gid_h;
 
 	__u64			o_data_version; /* getattr: sum of iversion for
 						 * each stripe.
 						 * brw: grant space consumed on
-						 * the client for the write */
+						 * the client for the write
+						 */
 	__u64			o_padding_4;
 	__u64			o_padding_5;
 	__u64			o_padding_6;
@@ -3273,13 +3134,14 @@ static inline void lustre_set_wire_obdo(struct obd_connect_data *ocd,
 {
 	*wobdo = *lobdo;
 	wobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
-	if (ocd == NULL)
+	if (!ocd)
 		return;
 
 	if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
 	    fid_seq_is_echo(ostid_seq(&lobdo->o_oi))) {
 		/* Currently OBD_FL_OSTID will only be used when 2.4 echo
-		 * client communicate with pre-2.4 server */
+		 * client communicate with pre-2.4 server
+		 */
 		wobdo->o_oi.oi.oi_id = fid_oid(&lobdo->o_oi.oi_fid);
 		wobdo->o_oi.oi.oi_seq = fid_seq(&lobdo->o_oi.oi_fid);
 	}
@@ -3292,7 +3154,7 @@ static inline void lustre_get_wire_obdo(struct obd_connect_data *ocd,
 	__u32 local_flags = 0;
 
 	if (lobdo->o_valid & OBD_MD_FLFLAGS)
-		 local_flags = lobdo->o_flags & OBD_FL_LOCAL_MASK;
+		local_flags = lobdo->o_flags & OBD_FL_LOCAL_MASK;
 
 	*lobdo = *wobdo;
 	if (local_flags != 0) {
@@ -3300,7 +3162,7 @@ static inline void lustre_get_wire_obdo(struct obd_connect_data *ocd,
 		lobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
 		lobdo->o_flags |= local_flags;
 	}
-	if (ocd == NULL)
+	if (!ocd)
 		return;
 
 	if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
@@ -3349,100 +3211,14 @@ void dump_ioo(struct obd_ioobj *nb);
 void dump_ost_body(struct ost_body *ob);
 void dump_rcs(__u32 *rc);
 
-#define IDX_INFO_MAGIC 0x3D37CC37
-
-/* Index file transfer through the network. The server serializes the index into
- * a byte stream which is sent to the client via a bulk transfer */
-struct idx_info {
-	__u32		ii_magic;
-
-	/* reply: see idx_info_flags below */
-	__u32		ii_flags;
-
-	/* request & reply: number of lu_idxpage (to be) transferred */
-	__u16		ii_count;
-	__u16		ii_pad0;
-
-	/* request: requested attributes passed down to the iterator API */
-	__u32		ii_attrs;
-
-	/* request & reply: index file identifier (FID) */
-	struct lu_fid	ii_fid;
-
-	/* reply: version of the index file before starting to walk the index.
-	 * Please note that the version can be modified at any time during the
-	 * transfer */
-	__u64		ii_version;
-
-	/* request: hash to start with:
-	 * reply: hash of the first entry of the first lu_idxpage and hash
-	 *	of the entry to read next if any */
-	__u64		ii_hash_start;
-	__u64		ii_hash_end;
-
-	/* reply: size of keys in lu_idxpages, minimal one if II_FL_VARKEY is
-	 * set */
-	__u16		ii_keysize;
-
-	/* reply: size of records in lu_idxpages, minimal one if II_FL_VARREC
-	 * is set */
-	__u16		ii_recsize;
-
-	__u32		ii_pad1;
-	__u64		ii_pad2;
-	__u64		ii_pad3;
-};
-
-void lustre_swab_idx_info(struct idx_info *ii);
-
-#define II_END_OFF	MDS_DIR_END_OFF /* all entries have been read */
-
-/* List of flags used in idx_info::ii_flags */
-enum idx_info_flags {
-	II_FL_NOHASH	= 1 << 0, /* client doesn't care about hash value */
-	II_FL_VARKEY	= 1 << 1, /* keys can be of variable size */
-	II_FL_VARREC	= 1 << 2, /* records can be of variable size */
-	II_FL_NONUNQ	= 1 << 3, /* index supports non-unique keys */
-};
-
-#define LIP_MAGIC 0x8A6D6B6C
-
-/* 4KB (= LU_PAGE_SIZE) container gathering key/record pairs */
-struct lu_idxpage {
-	/* 16-byte header */
-	__u32	lip_magic;
-	__u16	lip_flags;
-	__u16	lip_nr;   /* number of entries in the container */
-	__u64	lip_pad0; /* additional padding for future use */
-
-	/* key/record pairs are stored in the remaining 4080 bytes.
-	 * depending upon the flags in idx_info::ii_flags, each key/record
-	 * pair might be preceded by:
-	 * - a hash value
-	 * - the key size (II_FL_VARKEY is set)
-	 * - the record size (II_FL_VARREC is set)
-	 *
-	 * For the time being, we only support fixed-size key & record. */
-	char	lip_entries[0];
-};
-
-#define LIP_HDR_SIZE (offsetof(struct lu_idxpage, lip_entries))
-
-/* Gather all possible type associated with a 4KB container */
-union lu_page {
-	struct lu_dirpage	lp_dir; /* for MDS_READPAGE */
-	struct lu_idxpage	lp_idx; /* for OBD_IDX_READ */
-	char			lp_array[LU_PAGE_SIZE];
-};
-
 /* security opcodes */
-typedef enum {
+enum sec_cmd {
 	SEC_CTX_INIT	    = 801,
 	SEC_CTX_INIT_CONT       = 802,
 	SEC_CTX_FINI	    = 803,
 	SEC_LAST_OPC,
 	SEC_FIRST_OPC	   = SEC_CTX_INIT
-} sec_cmd_t;
+};
 
 /*
  * capa related definitions
@@ -3451,7 +3227,8 @@ typedef enum {
 #define CAPA_HMAC_KEY_MAX_LEN   56
 
 /* NB take care when changing the sequence of elements this struct,
- * because the offset info is used in find_capa() */
+ * because the offset info is used in find_capa()
+ */
 struct lustre_capa {
 	struct lu_fid   lc_fid;	 /** fid */
 	__u64	   lc_opc;	 /** operations allowed */
@@ -3463,7 +3240,7 @@ struct lustre_capa {
 /* FIXME: y2038 time_t overflow: */
 	__u32	   lc_expiry;      /** expiry time (sec) */
 	__u8	    lc_hmac[CAPA_HMAC_MAX_LEN];   /** HMAC */
-} __attribute__((packed));
+} __packed;
 
 void lustre_swab_lustre_capa(struct lustre_capa *c);
 
@@ -3497,7 +3274,7 @@ struct lustre_capa_key {
 	__u32   lk_keyid;     /**< key# */
 	__u32   lk_padding;
 	__u8    lk_key[CAPA_HMAC_KEY_MAX_LEN];    /**< key */
-} __attribute__((packed));
+} __packed;
 
 /** The link ea holds 1 \a link_ea_entry for each hardlink */
 #define LINK_EA_MAGIC 0x11EAF1DFUL
@@ -3518,7 +3295,7 @@ struct link_ea_entry {
 	unsigned char      lee_reclen[2];
 	unsigned char      lee_parent_fid[sizeof(struct lu_fid)];
 	char	       lee_name[0];
-} __attribute__((packed));
+} __packed;
 
 /** fid2path request/reply structure */
 struct getinfo_fid2path {
@@ -3527,7 +3304,7 @@ struct getinfo_fid2path {
 	__u32	   gf_linkno;
 	__u32	   gf_pathlen;
 	char	    gf_path[0];
-} __attribute__((packed));
+} __packed;
 
 void lustre_swab_fid2path (struct getinfo_fid2path *gf);
 
@@ -3558,7 +3335,7 @@ void lustre_swab_layout_intent(struct layout_intent *li);
  */
 struct hsm_progress_kernel {
 	/* Field taken from struct hsm_progress */
-	lustre_fid		hpk_fid;
+	struct lu_fid		hpk_fid;
 	__u64			hpk_cookie;
 	struct hsm_extent	hpk_extent;
 	__u16			hpk_flags;
@@ -3567,7 +3344,7 @@ struct hsm_progress_kernel {
 	/* Additional fields */
 	__u64			hpk_data_version;
 	__u64			hpk_padding2;
-} __attribute__((packed));
+} __packed;
 
 void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
 void lustre_swab_hsm_current_action(struct hsm_current_action *action);
@@ -3576,92 +3353,6 @@ void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
 void lustre_swab_hsm_user_item(struct hsm_user_item *hui);
 void lustre_swab_hsm_request(struct hsm_request *hr);
 
-/**
- * These are object update opcode under UPDATE_OBJ, which is currently
- * being used by cross-ref operations between MDT.
- *
- * During the cross-ref operation, the Master MDT, which the client send the
- * request to, will disassembly the operation into object updates, then OSP
- * will send these updates to the remote MDT to be executed.
- *
- *   Update request format
- *   magic:  UPDATE_BUFFER_MAGIC_V1
- *   Count:  How many updates in the req.
- *   bufs[0] : following are packets of object.
- *   update[0]:
- *		type: object_update_op, the op code of update
- *		fid: The object fid of the update.
- *		lens/bufs: other parameters of the update.
- *   update[1]:
- *		type: object_update_op, the op code of update
- *		fid: The object fid of the update.
- *		lens/bufs: other parameters of the update.
- *   ..........
- *   update[7]:	type: object_update_op, the op code of update
- *		fid: The object fid of the update.
- *		lens/bufs: other parameters of the update.
- *   Current 8 maxim updates per object update request.
- *
- *******************************************************************
- *   update reply format:
- *
- *   ur_version: UPDATE_REPLY_V1
- *   ur_count:   The count of the reply, which is usually equal
- *		 to the number of updates in the request.
- *   ur_lens:    The reply lengths of each object update.
- *
- *   replies:    1st update reply  [4bytes_ret: other body]
- *		 2nd update reply  [4bytes_ret: other body]
- *		 .....
- *		 nth update reply  [4bytes_ret: other body]
- *
- *   For each reply of the update, the format would be
- *	 result(4 bytes):Other stuff
- */
-
-#define UPDATE_MAX_OPS		10
-#define UPDATE_BUFFER_MAGIC_V1	0xBDDE0001
-#define UPDATE_BUFFER_MAGIC	UPDATE_BUFFER_MAGIC_V1
-#define UPDATE_BUF_COUNT	8
-enum object_update_op {
-	OBJ_CREATE		= 1,
-	OBJ_DESTROY		= 2,
-	OBJ_REF_ADD		= 3,
-	OBJ_REF_DEL		= 4,
-	OBJ_ATTR_SET		= 5,
-	OBJ_ATTR_GET		= 6,
-	OBJ_XATTR_SET		= 7,
-	OBJ_XATTR_GET		= 8,
-	OBJ_INDEX_LOOKUP	= 9,
-	OBJ_INDEX_INSERT	= 10,
-	OBJ_INDEX_DELETE	= 11,
-	OBJ_LAST
-};
-
-struct update {
-	__u32		u_type;
-	__u32		u_batchid;
-	struct lu_fid	u_fid;
-	__u32		u_lens[UPDATE_BUF_COUNT];
-	__u32		u_bufs[0];
-};
-
-struct update_buf {
-	__u32	ub_magic;
-	__u32	ub_count;
-	__u32	ub_bufs[0];
-};
-
-#define UPDATE_REPLY_V1		0x00BD0001
-struct update_reply {
-	__u32	ur_version;
-	__u32	ur_count;
-	__u32	ur_lens[0];
-};
-
-void lustre_swab_update_buf(struct update_buf *ub);
-void lustre_swab_update_reply_buf(struct update_reply *ur);
-
 /** layout swap request structure
  * fid1 and fid2 are in mdt_body
  */
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
index 2b4dd65..2e9f025 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
@@ -85,9 +85,8 @@ struct obd_statfs {
 	__u32	   os_namelen;
 	__u64	   os_maxbytes;
 	__u32	   os_state;       /**< obd_statfs_state OS_STATE_* flag */
-	__u32	   os_fprecreated;	/* objs available now to the caller */
-					/* used in QoS code to find preferred
-					 * OSTs */
+	__u32	   os_fprecreated; /* objs available now to the caller */
+				   /* used in QoS code to find preferred OSTs */
 	__u32	   os_spare2;
 	__u32	   os_spare3;
 	__u32	   os_spare4;
@@ -135,8 +134,9 @@ struct filter_fid_old {
 
 /* Userspace should treat lu_fid as opaque, and only use the following methods
  * to print or parse them.  Other functions (e.g. compare, swab) could be moved
- * here from lustre_idl.h if needed. */
-typedef struct lu_fid lustre_fid;
+ * here from lustre_idl.h if needed.
+ */
+struct lu_fid;
 
 /**
  * Following struct for object attributes, that will be kept inode's EA.
@@ -266,7 +266,8 @@ struct ost_id {
 /* Define O_LOV_DELAY_CREATE to be a mask that is not useful for regular
  * files, but are unlikely to be used in practice and are not harmful if
  * used incorrectly.  O_NOCTTY and FASYNC are only meaningful for character
- * devices and are safe for use on new files (See LU-812, LU-4209). */
+ * devices and are safe for use on new files (See LU-812, LU-4209).
+ */
 #define O_LOV_DELAY_CREATE	(O_NOCTTY | FASYNC)
 
 #define LL_FILE_IGNORE_LOCK     0x00000001
@@ -302,7 +303,8 @@ struct ost_id {
  * The limit of 12 pages is somewhat arbitrary, but is a reasonably large
  * allocation that is sufficient for the current generation of systems.
  *
- * (max buffer size - lov+rpc header) / sizeof(struct lov_ost_data_v1) */
+ * (max buffer size - lov+rpc header) / sizeof(struct lov_ost_data_v1)
+ */
 #define LOV_MAX_STRIPE_COUNT 2000  /* ((12 * 4096 - 256) / 24) */
 #define LOV_ALL_STRIPES       0xffff /* only valid for directories */
 #define LOV_V1_INSANE_STRIPE_COUNT 65532 /* maximum stripe count bz13933 */
@@ -323,9 +325,11 @@ struct lov_user_md_v1 {	   /* LOV EA user data (host-endian) */
 	__u16 lmm_stripe_count;   /* num stripes in use for this object */
 	union {
 		__u16 lmm_stripe_offset;  /* starting stripe offset in
-					   * lmm_objects, use when writing */
+					   * lmm_objects, use when writing
+					   */
 		__u16 lmm_layout_gen;     /* layout generation number
-					   * used when reading */
+					   * used when reading
+					   */
 	};
 	struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
 } __attribute__((packed,  __may_alias__));
@@ -338,9 +342,11 @@ struct lov_user_md_v3 {	   /* LOV EA user data (host-endian) */
 	__u16 lmm_stripe_count;   /* num stripes in use for this object */
 	union {
 		__u16 lmm_stripe_offset;  /* starting stripe offset in
-					   * lmm_objects, use when writing */
+					   * lmm_objects, use when writing
+					   */
 		__u16 lmm_layout_gen;     /* layout generation number
-					   * used when reading */
+					   * used when reading
+					   */
 	};
 	char  lmm_pool_name[LOV_MAXPOOLNAME]; /* pool name */
 	struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
@@ -444,7 +450,8 @@ static inline char *obd_uuid2str(const struct obd_uuid *uuid)
 {
 	if (uuid->uuid[sizeof(*uuid) - 1] != '\0') {
 		/* Obviously not safe, but for printfs, no real harm done...
-		   we're always null-terminated, even in a race. */
+		 * we're always null-terminated, even in a race.
+		 */
 		static char temp[sizeof(*uuid)];
 
 		memcpy(temp, uuid->uuid, sizeof(*uuid) - 1);
@@ -455,8 +462,9 @@ static inline char *obd_uuid2str(const struct obd_uuid *uuid)
 }
 
 /* Extract fsname from uuid (or target name) of a target
-   e.g. (myfs-OST0007_UUID -> myfs)
-   see also deuuidify. */
+ * e.g. (myfs-OST0007_UUID -> myfs)
+ * see also deuuidify.
+ */
 static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
 {
 	char *p;
@@ -465,11 +473,12 @@ static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
 	buf[buflen - 1] = '\0';
 	p = strrchr(buf, '-');
 	if (p)
-	   *p = '\0';
+		*p = '\0';
 }
 
 /* printf display format
-   e.g. printf("file FID is "DFID"\n", PFID(fid)); */
+ * e.g. printf("file FID is "DFID"\n", PFID(fid));
+ */
 #define FID_NOBRACE_LEN 40
 #define FID_LEN (FID_NOBRACE_LEN + 2)
 #define DFID_NOBRACE "%#llx:0x%x:0x%x"
@@ -480,7 +489,8 @@ static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
 	(fid)->f_ver
 
 /* scanf input parse format -- strip '[' first.
-   e.g. sscanf(fidstr, SFID, RFID(&fid)); */
+ * e.g. sscanf(fidstr, SFID, RFID(&fid));
+ */
 #define SFID "0x%llx:0x%x:0x%x"
 #define RFID(fid)     \
 	&((fid)->f_seq), \
@@ -566,9 +576,9 @@ enum {
 /* hdr + MDT index */
 #define LUSTRE_VOLATILE_IDX	LUSTRE_VOLATILE_HDR":%.4X:"
 
-typedef enum lustre_quota_version {
+enum lustre_quota_version {
 	LUSTRE_QUOTA_V2 = 1
-} lustre_quota_version_t;
+};
 
 /* XXX: same as if_dqinfo struct in kernel */
 struct obd_dqinfo {
@@ -698,7 +708,8 @@ static inline const char *changelog_type2str(int type)
 #define CLF_HSM_LAST	15
 
 /* Remove bits higher than _h, then extract the value
- * between _h and _l by shifting lower weigth to bit 0. */
+ * between _h and _l by shifting lower weigth to bit 0.
+ */
 #define CLF_GET_BITS(_b, _h, _l) (((_b << (CLF_HSM_LAST - _h)) & 0xFFFF) \
 				   >> (CLF_HSM_LAST - _h + _l))
 
@@ -761,10 +772,10 @@ struct changelog_rec {
 	__u64		 cr_prev;  /**< last index for this target fid */
 	__u64		 cr_time;
 	union {
-		lustre_fid    cr_tfid;	/**< target fid */
+		struct lu_fid    cr_tfid;	/**< target fid */
 		__u32	 cr_markerflags; /**< CL_MARK flags */
 	};
-	lustre_fid	    cr_pfid;	/**< parent fid */
+	struct lu_fid	    cr_pfid;	/**< parent fid */
 	char		  cr_name[0];     /**< last element */
 } __packed;
 
@@ -775,18 +786,19 @@ struct changelog_rec {
 struct changelog_ext_rec {
 	__u16			cr_namelen;
 	__u16			cr_flags; /**< (flags & CLF_FLAGMASK) |
-						CLF_EXT_VERSION */
+					   *	CLF_EXT_VERSION
+					   */
 	__u32			cr_type;  /**< \a changelog_rec_type */
 	__u64			cr_index; /**< changelog record number */
 	__u64			cr_prev;  /**< last index for this target fid */
 	__u64			cr_time;
 	union {
-		lustre_fid	cr_tfid;	/**< target fid */
+		struct lu_fid	cr_tfid;	/**< target fid */
 		__u32		cr_markerflags; /**< CL_MARK flags */
 	};
-	lustre_fid		cr_pfid;	/**< target parent fid */
-	lustre_fid		cr_sfid;	/**< source fid, or zero */
-	lustre_fid		cr_spfid;       /**< source parent fid, or zero */
+	struct lu_fid		cr_pfid;	/**< target parent fid */
+	struct lu_fid		cr_sfid;	/**< source fid, or zero */
+	struct lu_fid		cr_spfid;     /**< source parent fid, or zero */
 	char			cr_name[0];     /**< last element */
 } __packed;
 
@@ -835,7 +847,8 @@ struct ioc_data_version {
 };
 
 #define LL_DV_NOFLUSH 0x01   /* Do not take READ EXTENT LOCK before sampling
-				version. Dirty caches are left unchanged. */
+			      * version. Dirty caches are left unchanged.
+			      */
 
 #ifndef offsetof
 # define offsetof(typ, memb)     ((unsigned long)((char *)&(((typ *)0)->memb)))
@@ -976,8 +989,8 @@ struct hsm_request {
 };
 
 struct hsm_user_item {
-       lustre_fid	hui_fid;
-       struct hsm_extent hui_extent;
+	struct lu_fid	hui_fid;
+	struct hsm_extent hui_extent;
 } __packed;
 
 struct hsm_user_request {
@@ -1046,8 +1059,8 @@ static inline char *hsm_copytool_action2name(enum hsm_copytool_action  a)
 struct hsm_action_item {
 	__u32      hai_len;     /* valid size of this struct */
 	__u32      hai_action;  /* hsm_copytool_action, but use known size */
-	lustre_fid hai_fid;     /* Lustre FID to operated on */
-	lustre_fid hai_dfid;    /* fid used for data access */
+	struct lu_fid hai_fid;     /* Lustre FID to operated on */
+	struct lu_fid hai_dfid;    /* fid used for data access */
 	struct hsm_extent hai_extent;  /* byte range to operate on */
 	__u64      hai_cookie;  /* action cookie from coordinator */
 	__u64      hai_gid;     /* grouplock id */
@@ -1095,7 +1108,8 @@ struct hsm_action_list {
 	__u32 padding1;
 	char  hal_fsname[0];   /* null-terminated */
 	/* struct hsm_action_item[hal_count] follows, aligned on 8-byte
-	   boundaries. See hai_zero */
+	 * boundaries. See hai_zero
+	 */
 } __packed;
 
 #ifndef HAVE_CFS_SIZE_ROUND
@@ -1157,7 +1171,7 @@ struct hsm_user_import {
 #define HP_FLAG_RETRY     0x02
 
 struct hsm_progress {
-	lustre_fid		hp_fid;
+	struct lu_fid		hp_fid;
 	__u64			hp_cookie;
 	struct hsm_extent	hp_extent;
 	__u16			hp_flags;
diff --git a/drivers/staging/lustre/lustre/include/lustre_cfg.h b/drivers/staging/lustre/lustre/include/lustre_cfg.h
index d30d8b0..23ae832 100644
--- a/drivers/staging/lustre/lustre/include/lustre_cfg.h
+++ b/drivers/staging/lustre/lustre/include/lustre_cfg.h
@@ -55,7 +55,8 @@
 /** If the LCFG_REQUIRED bit is set in a configuration command,
  * then the client is required to understand this parameter
  * in order to mount the filesystem. If it does not understand
- * a REQUIRED command the client mount will fail. */
+ * a REQUIRED command the client mount will fail.
+ */
 #define LCFG_REQUIRED	 0x0001000
 
 enum lcfg_command_type {
@@ -87,9 +88,11 @@ enum lcfg_command_type {
 	LCFG_POOL_DEL	   = 0x00ce023, /**< destroy an ost pool name */
 	LCFG_SET_LDLM_TIMEOUT   = 0x00ce030, /**< set ldlm_timeout */
 	LCFG_PRE_CLEANUP	= 0x00cf031, /**< call type-specific pre
-					      * cleanup cleanup */
+					      * cleanup cleanup
+					      */
 	LCFG_SET_PARAM		= 0x00ce032, /**< use set_param syntax to set
-					      *a proc parameters */
+					      * a proc parameters
+					      */
 };
 
 struct lustre_cfg_bufs {
@@ -128,7 +131,7 @@ static inline void lustre_cfg_bufs_set(struct lustre_cfg_bufs *bufs,
 {
 	if (index >= LUSTRE_CFG_MAX_BUFCOUNT)
 		return;
-	if (bufs == NULL)
+	if (!bufs)
 		return;
 
 	if (bufs->lcfg_bufcount <= index)
@@ -158,7 +161,6 @@ static inline void *lustre_cfg_buf(struct lustre_cfg *lcfg, int index)
 	int offset;
 	int bufcount;
 
-	LASSERT (lcfg != NULL);
 	LASSERT (index >= 0);
 
 	bufcount = lcfg->lcfg_bufcount;
@@ -191,7 +193,7 @@ static inline char *lustre_cfg_string(struct lustre_cfg *lcfg, int index)
 		return NULL;
 
 	s = lustre_cfg_buf(lcfg, index);
-	if (s == NULL)
+	if (!s)
 		return NULL;
 
 	/*
diff --git a/drivers/staging/lustre/lustre/include/lustre_disk.h b/drivers/staging/lustre/lustre/include/lustre_disk.h
index 7c6933f..95fd360 100644
--- a/drivers/staging/lustre/lustre/include/lustre_disk.h
+++ b/drivers/staging/lustre/lustre/include/lustre_disk.h
@@ -65,7 +65,8 @@
 /****************** mount command *********************/
 
 /* The lmd is only used internally by Lustre; mount simply passes
-   everything as string options */
+ * everything as string options
+ */
 
 #define LMD_MAGIC    0xbdacbd03
 #define LMD_PARAMS_MAXLEN	4096
@@ -79,23 +80,26 @@ struct lustre_mount_data {
 	int	lmd_recovery_time_soft;
 	int	lmd_recovery_time_hard;
 	char      *lmd_dev;	   /* device name */
-	char      *lmd_profile;       /* client only */
+	char      *lmd_profile;    /* client only */
 	char      *lmd_mgssec;	/* sptlrpc flavor to mgs */
-	char      *lmd_opts;	  /* lustre mount options (as opposed to
-					 _device_ mount options) */
+	char      *lmd_opts;	/* lustre mount options (as opposed to
+				 * _device_ mount options)
+				 */
 	char      *lmd_params;	/* lustre params */
-	__u32     *lmd_exclude;       /* array of OSTs to ignore */
-	char	*lmd_mgs;	   /* MGS nid */
-	char	*lmd_osd_type;      /* OSD type */
+	__u32     *lmd_exclude; /* array of OSTs to ignore */
+	char	*lmd_mgs;	/* MGS nid */
+	char	*lmd_osd_type;  /* OSD type */
 };
 
 #define LMD_FLG_SERVER		0x0001	/* Mounting a server */
 #define LMD_FLG_CLIENT		0x0002	/* Mounting a client */
 #define LMD_FLG_ABORT_RECOV	0x0008	/* Abort recovery */
 #define LMD_FLG_NOSVC		0x0010	/* Only start MGS/MGC for servers,
-					   no other services */
-#define LMD_FLG_NOMGS		0x0020	/* Only start target for servers, reusing
-					   existing MGS services */
+					 * no other services
+					 */
+#define LMD_FLG_NOMGS		0x0020	/* Only start target for servers,
+					 * reusing existing MGS services
+					 */
 #define LMD_FLG_WRITECONF	0x0040	/* Rewrite config log */
 #define LMD_FLG_NOIR		0x0080	/* NO imperative recovery */
 #define LMD_FLG_NOSCRUB		0x0100	/* Do not trigger scrub automatically */
@@ -116,231 +120,6 @@ struct lustre_mount_data {
 #define LR_EXPIRE_INTERVALS 16 /**< number of intervals to track transno */
 #define ENOENT_VERSION 1 /** 'virtual' version of non-existent object */
 
-#define LR_SERVER_SIZE   512
-#define LR_CLIENT_START 8192
-#define LR_CLIENT_SIZE   128
-#if LR_CLIENT_START < LR_SERVER_SIZE
-#error "Can't have LR_CLIENT_START < LR_SERVER_SIZE"
-#endif
-
-/*
- * This limit is arbitrary (131072 clients on x86), but it is convenient to use
- * 2^n * PAGE_CACHE_SIZE * 8 for the number of bits that fit an order-n allocation.
- * If we need more than 131072 clients (order-2 allocation on x86) then this
- * should become an array of single-page pointers that are allocated on demand.
- */
-#if (128 * 1024UL) > (PAGE_CACHE_SIZE * 8)
-#define LR_MAX_CLIENTS (128 * 1024UL)
-#else
-#define LR_MAX_CLIENTS (PAGE_CACHE_SIZE * 8)
-#endif
-
-/** COMPAT_146: this is an OST (temporary) */
-#define OBD_COMPAT_OST	  0x00000002
-/** COMPAT_146: this is an MDT (temporary) */
-#define OBD_COMPAT_MDT	  0x00000004
-/** 2.0 server, interop flag to show server version is changed */
-#define OBD_COMPAT_20	   0x00000008
-
-/** MDS handles LOV_OBJID file */
-#define OBD_ROCOMPAT_LOVOBJID   0x00000001
-
-/** OST handles group subdirs */
-#define OBD_INCOMPAT_GROUPS     0x00000001
-/** this is an OST */
-#define OBD_INCOMPAT_OST	0x00000002
-/** this is an MDT */
-#define OBD_INCOMPAT_MDT	0x00000004
-/** common last_rvcd format */
-#define OBD_INCOMPAT_COMMON_LR  0x00000008
-/** FID is enabled */
-#define OBD_INCOMPAT_FID	0x00000010
-/** Size-on-MDS is enabled */
-#define OBD_INCOMPAT_SOM	0x00000020
-/** filesystem using iam format to store directory entries */
-#define OBD_INCOMPAT_IAM_DIR    0x00000040
-/** LMA attribute contains per-inode incompatible flags */
-#define OBD_INCOMPAT_LMA	0x00000080
-/** lmm_stripe_count has been shrunk from __u32 to __u16 and the remaining 16
- * bits are now used to store a generation. Once we start changing the layout
- * and bumping the generation, old versions expecting a 32-bit lmm_stripe_count
- * will be confused by interpreting stripe_count | gen << 16 as the actual
- * stripe count */
-#define OBD_INCOMPAT_LMM_VER    0x00000100
-/** multiple OI files for MDT */
-#define OBD_INCOMPAT_MULTI_OI   0x00000200
-
-/* Data stored per server at the head of the last_rcvd file.  In le32 order.
-   This should be common to filter_internal.h, lustre_mds.h */
-struct lr_server_data {
-	__u8  lsd_uuid[40];	/* server UUID */
-	__u64 lsd_last_transno;    /* last completed transaction ID */
-	__u64 lsd_compat14;	/* reserved - compat with old last_rcvd */
-	__u64 lsd_mount_count;     /* incarnation number */
-	__u32 lsd_feature_compat;  /* compatible feature flags */
-	__u32 lsd_feature_rocompat;/* read-only compatible feature flags */
-	__u32 lsd_feature_incompat;/* incompatible feature flags */
-	__u32 lsd_server_size;     /* size of server data area */
-	__u32 lsd_client_start;    /* start of per-client data area */
-	__u16 lsd_client_size;     /* size of per-client data area */
-	__u16 lsd_subdir_count;    /* number of subdirectories for objects */
-	__u64 lsd_catalog_oid;     /* recovery catalog object id */
-	__u32 lsd_catalog_ogen;    /* recovery catalog inode generation */
-	__u8  lsd_peeruuid[40];    /* UUID of MDS associated with this OST */
-	__u32 lsd_osd_index;       /* index number of OST in LOV */
-	__u32 lsd_padding1;	/* was lsd_mdt_index, unused in 2.4.0 */
-	__u32 lsd_start_epoch;     /* VBR: start epoch from last boot */
-	/** transaction values since lsd_trans_table_time */
-	__u64 lsd_trans_table[LR_EXPIRE_INTERVALS];
-	/** start point of transno table below */
-	__u32 lsd_trans_table_time; /* time of first slot in table above */
-	__u32 lsd_expire_intervals; /* LR_EXPIRE_INTERVALS */
-	__u8  lsd_padding[LR_SERVER_SIZE - 288];
-};
-
-/* Data stored per client in the last_rcvd file.  In le32 order. */
-struct lsd_client_data {
-	__u8  lcd_uuid[40];      /* client UUID */
-	__u64 lcd_last_transno; /* last completed transaction ID */
-	__u64 lcd_last_xid;     /* xid for the last transaction */
-	__u32 lcd_last_result;  /* result from last RPC */
-	__u32 lcd_last_data;    /* per-op data (disposition for open &c.) */
-	/* for MDS_CLOSE requests */
-	__u64 lcd_last_close_transno; /* last completed transaction ID */
-	__u64 lcd_last_close_xid;     /* xid for the last transaction */
-	__u32 lcd_last_close_result;  /* result from last RPC */
-	__u32 lcd_last_close_data;    /* per-op data */
-	/* VBR: last versions */
-	__u64 lcd_pre_versions[4];
-	__u32 lcd_last_epoch;
-	/** orphans handling for delayed export rely on that */
-	__u32 lcd_first_epoch;
-	__u8  lcd_padding[LR_CLIENT_SIZE - 128];
-};
-
-/* bug20354: the lcd_uuid for export of clients may be wrong */
-static inline void check_lcd(char *obd_name, int index,
-			     struct lsd_client_data *lcd)
-{
-	int length = sizeof(lcd->lcd_uuid);
-
-	if (strnlen((char *)lcd->lcd_uuid, length) == length) {
-		lcd->lcd_uuid[length - 1] = '\0';
-
-		LCONSOLE_ERROR("the client UUID (%s) on %s for exports stored in last_rcvd(index = %d) is bad!\n",
-			       lcd->lcd_uuid, obd_name, index);
-	}
-}
-
-/* last_rcvd handling */
-static inline void lsd_le_to_cpu(struct lr_server_data *buf,
-				 struct lr_server_data *lsd)
-{
-	int i;
-
-	memcpy(lsd->lsd_uuid, buf->lsd_uuid, sizeof(lsd->lsd_uuid));
-	lsd->lsd_last_transno     = le64_to_cpu(buf->lsd_last_transno);
-	lsd->lsd_compat14	 = le64_to_cpu(buf->lsd_compat14);
-	lsd->lsd_mount_count      = le64_to_cpu(buf->lsd_mount_count);
-	lsd->lsd_feature_compat   = le32_to_cpu(buf->lsd_feature_compat);
-	lsd->lsd_feature_rocompat = le32_to_cpu(buf->lsd_feature_rocompat);
-	lsd->lsd_feature_incompat = le32_to_cpu(buf->lsd_feature_incompat);
-	lsd->lsd_server_size      = le32_to_cpu(buf->lsd_server_size);
-	lsd->lsd_client_start     = le32_to_cpu(buf->lsd_client_start);
-	lsd->lsd_client_size      = le16_to_cpu(buf->lsd_client_size);
-	lsd->lsd_subdir_count     = le16_to_cpu(buf->lsd_subdir_count);
-	lsd->lsd_catalog_oid      = le64_to_cpu(buf->lsd_catalog_oid);
-	lsd->lsd_catalog_ogen     = le32_to_cpu(buf->lsd_catalog_ogen);
-	memcpy(lsd->lsd_peeruuid, buf->lsd_peeruuid, sizeof(lsd->lsd_peeruuid));
-	lsd->lsd_osd_index	= le32_to_cpu(buf->lsd_osd_index);
-	lsd->lsd_padding1	= le32_to_cpu(buf->lsd_padding1);
-	lsd->lsd_start_epoch      = le32_to_cpu(buf->lsd_start_epoch);
-	for (i = 0; i < LR_EXPIRE_INTERVALS; i++)
-		lsd->lsd_trans_table[i] = le64_to_cpu(buf->lsd_trans_table[i]);
-	lsd->lsd_trans_table_time = le32_to_cpu(buf->lsd_trans_table_time);
-	lsd->lsd_expire_intervals = le32_to_cpu(buf->lsd_expire_intervals);
-}
-
-static inline void lsd_cpu_to_le(struct lr_server_data *lsd,
-				 struct lr_server_data *buf)
-{
-	int i;
-
-	memcpy(buf->lsd_uuid, lsd->lsd_uuid, sizeof(buf->lsd_uuid));
-	buf->lsd_last_transno     = cpu_to_le64(lsd->lsd_last_transno);
-	buf->lsd_compat14	 = cpu_to_le64(lsd->lsd_compat14);
-	buf->lsd_mount_count      = cpu_to_le64(lsd->lsd_mount_count);
-	buf->lsd_feature_compat   = cpu_to_le32(lsd->lsd_feature_compat);
-	buf->lsd_feature_rocompat = cpu_to_le32(lsd->lsd_feature_rocompat);
-	buf->lsd_feature_incompat = cpu_to_le32(lsd->lsd_feature_incompat);
-	buf->lsd_server_size      = cpu_to_le32(lsd->lsd_server_size);
-	buf->lsd_client_start     = cpu_to_le32(lsd->lsd_client_start);
-	buf->lsd_client_size      = cpu_to_le16(lsd->lsd_client_size);
-	buf->lsd_subdir_count     = cpu_to_le16(lsd->lsd_subdir_count);
-	buf->lsd_catalog_oid      = cpu_to_le64(lsd->lsd_catalog_oid);
-	buf->lsd_catalog_ogen     = cpu_to_le32(lsd->lsd_catalog_ogen);
-	memcpy(buf->lsd_peeruuid, lsd->lsd_peeruuid, sizeof(buf->lsd_peeruuid));
-	buf->lsd_osd_index	  = cpu_to_le32(lsd->lsd_osd_index);
-	buf->lsd_padding1	  = cpu_to_le32(lsd->lsd_padding1);
-	buf->lsd_start_epoch      = cpu_to_le32(lsd->lsd_start_epoch);
-	for (i = 0; i < LR_EXPIRE_INTERVALS; i++)
-		buf->lsd_trans_table[i] = cpu_to_le64(lsd->lsd_trans_table[i]);
-	buf->lsd_trans_table_time = cpu_to_le32(lsd->lsd_trans_table_time);
-	buf->lsd_expire_intervals = cpu_to_le32(lsd->lsd_expire_intervals);
-}
-
-static inline void lcd_le_to_cpu(struct lsd_client_data *buf,
-				 struct lsd_client_data *lcd)
-{
-	memcpy(lcd->lcd_uuid, buf->lcd_uuid, sizeof (lcd->lcd_uuid));
-	lcd->lcd_last_transno       = le64_to_cpu(buf->lcd_last_transno);
-	lcd->lcd_last_xid	   = le64_to_cpu(buf->lcd_last_xid);
-	lcd->lcd_last_result	= le32_to_cpu(buf->lcd_last_result);
-	lcd->lcd_last_data	  = le32_to_cpu(buf->lcd_last_data);
-	lcd->lcd_last_close_transno = le64_to_cpu(buf->lcd_last_close_transno);
-	lcd->lcd_last_close_xid     = le64_to_cpu(buf->lcd_last_close_xid);
-	lcd->lcd_last_close_result  = le32_to_cpu(buf->lcd_last_close_result);
-	lcd->lcd_last_close_data    = le32_to_cpu(buf->lcd_last_close_data);
-	lcd->lcd_pre_versions[0]    = le64_to_cpu(buf->lcd_pre_versions[0]);
-	lcd->lcd_pre_versions[1]    = le64_to_cpu(buf->lcd_pre_versions[1]);
-	lcd->lcd_pre_versions[2]    = le64_to_cpu(buf->lcd_pre_versions[2]);
-	lcd->lcd_pre_versions[3]    = le64_to_cpu(buf->lcd_pre_versions[3]);
-	lcd->lcd_last_epoch	 = le32_to_cpu(buf->lcd_last_epoch);
-	lcd->lcd_first_epoch	= le32_to_cpu(buf->lcd_first_epoch);
-}
-
-static inline void lcd_cpu_to_le(struct lsd_client_data *lcd,
-				 struct lsd_client_data *buf)
-{
-	memcpy(buf->lcd_uuid, lcd->lcd_uuid, sizeof (lcd->lcd_uuid));
-	buf->lcd_last_transno       = cpu_to_le64(lcd->lcd_last_transno);
-	buf->lcd_last_xid	   = cpu_to_le64(lcd->lcd_last_xid);
-	buf->lcd_last_result	= cpu_to_le32(lcd->lcd_last_result);
-	buf->lcd_last_data	  = cpu_to_le32(lcd->lcd_last_data);
-	buf->lcd_last_close_transno = cpu_to_le64(lcd->lcd_last_close_transno);
-	buf->lcd_last_close_xid     = cpu_to_le64(lcd->lcd_last_close_xid);
-	buf->lcd_last_close_result  = cpu_to_le32(lcd->lcd_last_close_result);
-	buf->lcd_last_close_data    = cpu_to_le32(lcd->lcd_last_close_data);
-	buf->lcd_pre_versions[0]    = cpu_to_le64(lcd->lcd_pre_versions[0]);
-	buf->lcd_pre_versions[1]    = cpu_to_le64(lcd->lcd_pre_versions[1]);
-	buf->lcd_pre_versions[2]    = cpu_to_le64(lcd->lcd_pre_versions[2]);
-	buf->lcd_pre_versions[3]    = cpu_to_le64(lcd->lcd_pre_versions[3]);
-	buf->lcd_last_epoch	 = cpu_to_le32(lcd->lcd_last_epoch);
-	buf->lcd_first_epoch	= cpu_to_le32(lcd->lcd_first_epoch);
-}
-
-static inline __u64 lcd_last_transno(struct lsd_client_data *lcd)
-{
-	return (lcd->lcd_last_transno > lcd->lcd_last_close_transno ?
-		lcd->lcd_last_transno : lcd->lcd_last_close_transno);
-}
-
-static inline __u64 lcd_last_xid(struct lsd_client_data *lcd)
-{
-	return (lcd->lcd_last_xid > lcd->lcd_last_close_xid ?
-		lcd->lcd_last_xid : lcd->lcd_last_close_xid);
-}
-
 /****************** superblock additional info *********************/
 
 struct ll_sb_info;
@@ -360,7 +139,8 @@ struct lustre_sb_info {
 	char			  lsi_osd_type[16];
 	char			  lsi_fstype[16];
 	struct backing_dev_info   lsi_bdi;     /* each client mountpoint needs
-						  own backing_dev_info */
+						* own backing_dev_info
+						*/
 };
 
 #define LSI_UMOUNT_FAILOVER	      0x00200000
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
index 9b319f1..144b5af 100644
--- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
+++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h
@@ -69,7 +69,7 @@ struct obd_device;
 /**
  * LDLM non-error return states
  */
-typedef enum {
+enum ldlm_error {
 	ELDLM_OK = 0,
 
 	ELDLM_LOCK_CHANGED = 300,
@@ -80,7 +80,7 @@ typedef enum {
 
 	ELDLM_NAMESPACE_EXISTS = 400,
 	ELDLM_BAD_NAMESPACE    = 401
-} ldlm_error_t;
+};
 
 /**
  * LDLM namespace type.
@@ -145,14 +145,15 @@ typedef enum {
 #define LCK_COMPAT_COS (LCK_COS)
 /** @} Lock Compatibility Matrix */
 
-extern ldlm_mode_t lck_compat_array[];
+extern enum ldlm_mode lck_compat_array[];
 
-static inline void lockmode_verify(ldlm_mode_t mode)
+static inline void lockmode_verify(enum ldlm_mode mode)
 {
        LASSERT(mode > LCK_MINMODE && mode < LCK_MAXMODE);
 }
 
-static inline int lockmode_compat(ldlm_mode_t exist_mode, ldlm_mode_t new_mode)
+static inline int lockmode_compat(enum ldlm_mode exist_mode,
+				  enum ldlm_mode new_mode)
 {
        return (lck_compat_array[exist_mode] & new_mode);
 }
@@ -249,7 +250,8 @@ struct ldlm_pool {
 	/** Current biggest client lock volume. Protected by pl_lock. */
 	__u64			pl_client_lock_volume;
 	/** Lock volume factor. SLV on client is calculated as following:
-	 *  server_slv * lock_volume_factor. */
+	 *  server_slv * lock_volume_factor.
+	 */
 	atomic_t		pl_lock_volume_factor;
 	/** Time when last SLV from server was obtained. */
 	time64_t		pl_recalc_time;
@@ -295,10 +297,10 @@ struct ldlm_valblock_ops {
  * LDLM pools related, type of lock pool in the namespace.
  * Greedy means release cached locks aggressively
  */
-typedef enum {
+enum ldlm_appetite {
 	LDLM_NAMESPACE_GREEDY = 1 << 0,
 	LDLM_NAMESPACE_MODEST = 1 << 1
-} ldlm_appetite_t;
+};
 
 struct ldlm_ns_bucket {
 	/** back pointer to namespace */
@@ -317,7 +319,7 @@ enum {
 	LDLM_NSS_LAST
 };
 
-typedef enum {
+enum ldlm_ns_type {
 	/** invalid type */
 	LDLM_NS_TYPE_UNKNOWN    = 0,
 	/** mdc namespace */
@@ -332,7 +334,7 @@ typedef enum {
 	LDLM_NS_TYPE_MGC,
 	/** mgs namespace */
 	LDLM_NS_TYPE_MGT,
-} ldlm_ns_type_t;
+};
 
 /**
  * LDLM Namespace.
@@ -373,7 +375,7 @@ struct ldlm_namespace {
 
 	/**
 	 * Namespace connect flags supported by server (may be changed via
-	 * /proc, LRU resize may be disabled/enabled).
+	 * sysfs, LRU resize may be disabled/enabled).
 	 */
 	__u64			ns_connect_flags;
 
@@ -439,7 +441,7 @@ struct ldlm_namespace {
 	/** LDLM pool structure for this namespace */
 	struct ldlm_pool	ns_pool;
 	/** Definition of how eagerly unused locks will be released from LRU */
-	ldlm_appetite_t		ns_appetite;
+	enum ldlm_appetite	ns_appetite;
 
 	/** Limit of parallel AST RPC count. */
 	unsigned		ns_max_parallel_ast;
@@ -465,7 +467,6 @@ struct ldlm_namespace {
  */
 static inline int ns_connect_cancelset(struct ldlm_namespace *ns)
 {
-	LASSERT(ns != NULL);
 	return !!(ns->ns_connect_flags & OBD_CONNECT_CANCELSET);
 }
 
@@ -474,14 +475,12 @@ static inline int ns_connect_cancelset(struct ldlm_namespace *ns)
  */
 static inline int ns_connect_lru_resize(struct ldlm_namespace *ns)
 {
-	LASSERT(ns != NULL);
 	return !!(ns->ns_connect_flags & OBD_CONNECT_LRU_RESIZE);
 }
 
 static inline void ns_register_cancel(struct ldlm_namespace *ns,
 				      ldlm_cancel_for_recovery arg)
 {
-	LASSERT(ns != NULL);
 	ns->ns_cancel_for_recovery = arg;
 }
 
@@ -503,7 +502,8 @@ struct ldlm_glimpse_work {
 	struct list_head		 gl_list; /* linkage to other gl work structs */
 	__u32			 gl_flags;/* see LDLM_GL_WORK_* below */
 	union ldlm_gl_desc	*gl_desc; /* glimpse descriptor to be packed in
-					   * glimpse callback request */
+					   * glimpse callback request
+					   */
 };
 
 /** The ldlm_glimpse_work is allocated on the stack and should not be freed. */
@@ -512,8 +512,9 @@ struct ldlm_glimpse_work {
 /** Interval node data for each LDLM_EXTENT lock. */
 struct ldlm_interval {
 	struct interval_node	li_node;  /* node for tree management */
-	struct list_head		li_group; /* the locks which have the same
-					   * policy - group of the policy */
+	struct list_head	li_group; /* the locks which have the same
+					   * policy - group of the policy
+					   */
 };
 
 #define to_ldlm_interval(n) container_of(n, struct ldlm_interval, li_node)
@@ -527,7 +528,7 @@ struct ldlm_interval {
 struct ldlm_interval_tree {
 	/** Tree size. */
 	int			lit_size;
-	ldlm_mode_t		lit_mode;  /* lock mode */
+	enum ldlm_mode		lit_mode;  /* lock mode */
 	struct interval_node	*lit_root; /* actual ldlm_interval */
 };
 
@@ -535,12 +536,13 @@ struct ldlm_interval_tree {
 #define LUSTRE_TRACKS_LOCK_EXP_REFS (0)
 
 /** Cancel flags. */
-typedef enum {
+enum ldlm_cancel_flags {
 	LCF_ASYNC      = 0x1, /* Cancel locks asynchronously. */
 	LCF_LOCAL      = 0x2, /* Cancel locks locally, not notifing server */
 	LCF_BL_AST     = 0x4, /* Cancel locks marked as LDLM_FL_BL_AST
-			       * in the same RPC */
-} ldlm_cancel_flags_t;
+			       * in the same RPC
+			       */
+};
 
 struct ldlm_flock {
 	__u64 start;
@@ -559,7 +561,7 @@ typedef union {
 	struct ldlm_inodebits l_inodebits;
 } ldlm_policy_data_t;
 
-void ldlm_convert_policy_to_local(struct obd_export *exp, ldlm_type_t type,
+void ldlm_convert_policy_to_local(struct obd_export *exp, enum ldlm_type type,
 				  const ldlm_wire_policy_data_t *wpolicy,
 				  ldlm_policy_data_t *lpolicy);
 
@@ -637,11 +639,11 @@ struct ldlm_lock {
 	 * Requested mode.
 	 * Protected by lr_lock.
 	 */
-	ldlm_mode_t		l_req_mode;
+	enum ldlm_mode		l_req_mode;
 	/**
 	 * Granted mode, also protected by lr_lock.
 	 */
-	ldlm_mode_t		l_granted_mode;
+	enum ldlm_mode		l_granted_mode;
 	/** Lock completion handler pointer. Called when lock is granted. */
 	ldlm_completion_callback l_completion_ast;
 	/**
@@ -841,20 +843,19 @@ struct ldlm_resource {
 
 	/**
 	 * protected by lr_lock
-	 * @{ */
+	 * @{
+	 */
 	/** List of locks in granted state */
 	struct list_head		lr_granted;
 	/**
 	 * List of locks that could not be granted due to conflicts and
-	 * that are waiting for conflicts to go away */
+	 * that are waiting for conflicts to go away
+	 */
 	struct list_head		lr_waiting;
 	/** @} */
 
-	/* XXX No longer needed? Remove ASAP */
-	ldlm_mode_t		lr_most_restr;
-
 	/** Type of locks this resource can hold. Only one type per resource. */
-	ldlm_type_t		lr_type; /* LDLM_{PLAIN,EXTENT,FLOCK,IBITS} */
+	enum ldlm_type		lr_type; /* LDLM_{PLAIN,EXTENT,FLOCK,IBITS} */
 
 	/** Resource name */
 	struct ldlm_res_id	lr_name;
@@ -921,7 +922,7 @@ static inline int ldlm_lvbo_init(struct ldlm_resource *res)
 {
 	struct ldlm_namespace *ns = ldlm_res_to_ns(res);
 
-	if (ns->ns_lvbo != NULL && ns->ns_lvbo->lvbo_init != NULL)
+	if (ns->ns_lvbo && ns->ns_lvbo->lvbo_init)
 		return ns->ns_lvbo->lvbo_init(res);
 
 	return 0;
@@ -931,7 +932,7 @@ static inline int ldlm_lvbo_size(struct ldlm_lock *lock)
 {
 	struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
 
-	if (ns->ns_lvbo != NULL && ns->ns_lvbo->lvbo_size != NULL)
+	if (ns->ns_lvbo && ns->ns_lvbo->lvbo_size)
 		return ns->ns_lvbo->lvbo_size(lock);
 
 	return 0;
@@ -941,10 +942,9 @@ static inline int ldlm_lvbo_fill(struct ldlm_lock *lock, void *buf, int len)
 {
 	struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
 
-	if (ns->ns_lvbo != NULL) {
-		LASSERT(ns->ns_lvbo->lvbo_fill != NULL);
+	if (ns->ns_lvbo)
 		return ns->ns_lvbo->lvbo_fill(lock, buf, len);
-	}
+
 	return 0;
 }
 
@@ -1015,7 +1015,7 @@ void _ldlm_lock_debug(struct ldlm_lock *lock,
 
 /** Non-rate-limited lock printing function for debugging purposes. */
 #define LDLM_DEBUG(lock, fmt, a...)   do {				  \
-	if (likely(lock != NULL)) {					    \
+	if (likely(lock)) {						    \
 		LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_DLMTRACE, NULL);      \
 		ldlm_lock_debug(&msgdata, D_DLMTRACE, NULL, lock,	    \
 				"### " fmt, ##a);			    \
@@ -1025,7 +1025,7 @@ void _ldlm_lock_debug(struct ldlm_lock *lock,
 } while (0)
 
 typedef int (*ldlm_processing_policy)(struct ldlm_lock *lock, __u64 *flags,
-				      int first_enq, ldlm_error_t *err,
+				      int first_enq, enum ldlm_error *err,
 				      struct list_head *work_list);
 
 /**
@@ -1042,7 +1042,8 @@ typedef int (*ldlm_res_iterator_t)(struct ldlm_resource *, void *);
  *
  * LDLM provides for a way to iterate through every lock on a resource or
  * namespace or every resource in a namespace.
- * @{ */
+ * @{
+ */
 int ldlm_resource_iterate(struct ldlm_namespace *, const struct ldlm_res_id *,
 			  ldlm_iterator_t iter, void *data);
 /** @} ldlm_iterator */
@@ -1091,7 +1092,7 @@ ldlm_handle2lock_long(const struct lustre_handle *h, __u64 flags)
 	struct ldlm_lock *lock;
 
 	lock = __ldlm_handle2lock(h, flags);
-	if (lock != NULL)
+	if (lock)
 		LDLM_LOCK_REF_DEL(lock);
 	return lock;
 }
@@ -1111,7 +1112,7 @@ static inline int ldlm_res_lvbo_update(struct ldlm_resource *res,
 	return 0;
 }
 
-int ldlm_error2errno(ldlm_error_t error);
+int ldlm_error2errno(enum ldlm_error error);
 
 #if LUSTRE_TRACKS_LOCK_EXP_REFS
 void ldlm_dump_export_locks(struct obd_export *exp);
@@ -1168,12 +1169,13 @@ void ldlm_lock_decref_and_cancel(struct lustre_handle *lockh, __u32 mode);
 void ldlm_lock_fail_match_locked(struct ldlm_lock *lock);
 void ldlm_lock_allow_match(struct ldlm_lock *lock);
 void ldlm_lock_allow_match_locked(struct ldlm_lock *lock);
-ldlm_mode_t ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
-			    const struct ldlm_res_id *, ldlm_type_t type,
-			    ldlm_policy_data_t *, ldlm_mode_t mode,
-			    struct lustre_handle *, int unref);
-ldlm_mode_t ldlm_revalidate_lock_handle(struct lustre_handle *lockh,
-					__u64 *bits);
+enum ldlm_mode ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
+			       const struct ldlm_res_id *,
+			       enum ldlm_type type, ldlm_policy_data_t *,
+			       enum ldlm_mode mode, struct lustre_handle *,
+			       int unref);
+enum ldlm_mode ldlm_revalidate_lock_handle(struct lustre_handle *lockh,
+					   __u64 *bits);
 void ldlm_lock_cancel(struct ldlm_lock *lock);
 void ldlm_lock_dump_handle(int level, struct lustre_handle *);
 void ldlm_unlink_lock_skiplist(struct ldlm_lock *req);
@@ -1181,8 +1183,8 @@ void ldlm_unlink_lock_skiplist(struct ldlm_lock *req);
 /* resource.c */
 struct ldlm_namespace *
 ldlm_namespace_new(struct obd_device *obd, char *name,
-		   ldlm_side_t client, ldlm_appetite_t apt,
-		   ldlm_ns_type_t ns_type);
+		   ldlm_side_t client, enum ldlm_appetite apt,
+		   enum ldlm_ns_type ns_type);
 int ldlm_namespace_cleanup(struct ldlm_namespace *ns, __u64 flags);
 void ldlm_namespace_get(struct ldlm_namespace *ns);
 void ldlm_namespace_put(struct ldlm_namespace *ns);
@@ -1193,7 +1195,7 @@ void ldlm_debugfs_cleanup(void);
 struct ldlm_resource *ldlm_resource_get(struct ldlm_namespace *ns,
 					struct ldlm_resource *parent,
 					const struct ldlm_res_id *,
-					ldlm_type_t type, int create);
+					enum ldlm_type type, int create);
 int ldlm_resource_putref(struct ldlm_resource *res);
 void ldlm_resource_add_lock(struct ldlm_resource *res,
 			    struct list_head *head,
@@ -1219,7 +1221,8 @@ int ldlm_lock_change_resource(struct ldlm_namespace *, struct ldlm_lock *,
  * These AST handlers are typically used for server-side local locks and are
  * also used by client-side lock handlers to perform minimum level base
  * processing.
- * @{ */
+ * @{
+ */
 int ldlm_completion_ast_async(struct ldlm_lock *lock, __u64 flags, void *data);
 int ldlm_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data);
 /** @} ldlm_local_ast */
@@ -1227,7 +1230,8 @@ int ldlm_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data);
 /** \defgroup ldlm_cli_api API to operate on locks from actual LDLM users.
  * These are typically used by client and server (*_local versions)
  * to obtain and release locks.
- * @{ */
+ * @{
+ */
 int ldlm_cli_enqueue(struct obd_export *exp, struct ptlrpc_request **reqp,
 		     struct ldlm_enqueue_info *einfo,
 		     const struct ldlm_res_id *res_id,
@@ -1244,29 +1248,32 @@ int ldlm_prep_elc_req(struct obd_export *exp,
 		      struct list_head *cancels, int count);
 
 int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
-			  ldlm_type_t type, __u8 with_policy, ldlm_mode_t mode,
+			  enum ldlm_type type, __u8 with_policy,
+			  enum ldlm_mode mode,
 			  __u64 *flags, void *lvb, __u32 lvb_len,
 			  struct lustre_handle *lockh, int rc);
 int ldlm_cli_update_pool(struct ptlrpc_request *req);
 int ldlm_cli_cancel(struct lustre_handle *lockh,
-		    ldlm_cancel_flags_t cancel_flags);
+		    enum ldlm_cancel_flags cancel_flags);
 int ldlm_cli_cancel_unused(struct ldlm_namespace *, const struct ldlm_res_id *,
-			   ldlm_cancel_flags_t flags, void *opaque);
+			   enum ldlm_cancel_flags flags, void *opaque);
 int ldlm_cli_cancel_unused_resource(struct ldlm_namespace *ns,
 				    const struct ldlm_res_id *res_id,
 				    ldlm_policy_data_t *policy,
-				    ldlm_mode_t mode,
-				    ldlm_cancel_flags_t flags,
+				    enum ldlm_mode mode,
+				    enum ldlm_cancel_flags flags,
 				    void *opaque);
 int ldlm_cancel_resource_local(struct ldlm_resource *res,
 			       struct list_head *cancels,
 			       ldlm_policy_data_t *policy,
-			       ldlm_mode_t mode, __u64 lock_flags,
-			       ldlm_cancel_flags_t cancel_flags, void *opaque);
+			       enum ldlm_mode mode, __u64 lock_flags,
+			       enum ldlm_cancel_flags cancel_flags,
+			       void *opaque);
 int ldlm_cli_cancel_list_local(struct list_head *cancels, int count,
-			       ldlm_cancel_flags_t flags);
+			       enum ldlm_cancel_flags flags);
 int ldlm_cli_cancel_list(struct list_head *head, int count,
-			 struct ptlrpc_request *req, ldlm_cancel_flags_t flags);
+			 struct ptlrpc_request *req,
+			 enum ldlm_cancel_flags flags);
 /** @} ldlm_cli_api */
 
 /* mds/handler.c */
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h
index 0d3ed87..7f2ba2f 100644
--- a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h
+++ b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h
@@ -57,7 +57,8 @@
 
 /**
  * Server placed lock on granted list, or a recovering client wants the
- * lock added to the granted list, no questions asked. */
+ * lock added to the granted list, no questions asked.
+ */
 #define LDLM_FL_BLOCK_GRANTED           0x0000000000000002ULL /* bit 1 */
 #define ldlm_is_block_granted(_l)       LDLM_TEST_FLAG((_l), 1ULL <<  1)
 #define ldlm_set_block_granted(_l)      LDLM_SET_FLAG((_l), 1ULL <<  1)
@@ -65,7 +66,8 @@
 
 /**
  * Server placed lock on conv list, or a recovering client wants the lock
- * added to the conv list, no questions asked. */
+ * added to the conv list, no questions asked.
+ */
 #define LDLM_FL_BLOCK_CONV              0x0000000000000004ULL /* bit 2 */
 #define ldlm_is_block_conv(_l)          LDLM_TEST_FLAG((_l), 1ULL <<  2)
 #define ldlm_set_block_conv(_l)         LDLM_SET_FLAG((_l), 1ULL <<  2)
@@ -73,7 +75,8 @@
 
 /**
  * Server placed lock on wait list, or a recovering client wants the lock
- * added to the wait list, no questions asked. */
+ * added to the wait list, no questions asked.
+ */
 #define LDLM_FL_BLOCK_WAIT              0x0000000000000008ULL /* bit 3 */
 #define ldlm_is_block_wait(_l)          LDLM_TEST_FLAG((_l), 1ULL <<  3)
 #define ldlm_set_block_wait(_l)         LDLM_SET_FLAG((_l), 1ULL <<  3)
@@ -87,7 +90,8 @@
 
 /**
  * Lock is being replayed.  This could probably be implied by the fact that
- * one of BLOCK_{GRANTED,CONV,WAIT} is set, but that is pretty dangerous. */
+ * one of BLOCK_{GRANTED,CONV,WAIT} is set, but that is pretty dangerous.
+ */
 #define LDLM_FL_REPLAY                  0x0000000000000100ULL /* bit 8 */
 #define ldlm_is_replay(_l)              LDLM_TEST_FLAG((_l), 1ULL <<  8)
 #define ldlm_set_replay(_l)             LDLM_SET_FLAG((_l), 1ULL <<  8)
@@ -125,7 +129,8 @@
 
 /**
  * Server told not to wait if blocked. For AGL, OST will not send glimpse
- * callback. */
+ * callback.
+ */
 #define LDLM_FL_BLOCK_NOWAIT            0x0000000000040000ULL /* bit 18 */
 #define ldlm_is_block_nowait(_l)        LDLM_TEST_FLAG((_l), 1ULL << 18)
 #define ldlm_set_block_nowait(_l)       LDLM_SET_FLAG((_l), 1ULL << 18)
@@ -141,7 +146,8 @@
  * Immediately cancel such locks when they block some other locks. Send
  * cancel notification to original lock holder, but expect no reply. This
  * is for clients (like liblustre) that cannot be expected to reliably
- * response to blocking AST. */
+ * response to blocking AST.
+ */
 #define LDLM_FL_CANCEL_ON_BLOCK         0x0000000000800000ULL /* bit 23 */
 #define ldlm_is_cancel_on_block(_l)     LDLM_TEST_FLAG((_l), 1ULL << 23)
 #define ldlm_set_cancel_on_block(_l)    LDLM_SET_FLAG((_l), 1ULL << 23)
@@ -164,7 +170,8 @@
 
 /**
  * Used for marking lock as a target for -EINTR while cp_ast sleep emulation
- * + race with upcoming bl_ast. */
+ * + race with upcoming bl_ast.
+ */
 #define LDLM_FL_FAIL_LOC                0x0000000100000000ULL /* bit 32 */
 #define ldlm_is_fail_loc(_l)            LDLM_TEST_FLAG((_l), 1ULL << 32)
 #define ldlm_set_fail_loc(_l)           LDLM_SET_FLAG((_l), 1ULL << 32)
@@ -172,7 +179,8 @@
 
 /**
  * Used while processing the unused list to know that we have already
- * handled this lock and decided to skip it. */
+ * handled this lock and decided to skip it.
+ */
 #define LDLM_FL_SKIPPED                 0x0000000200000000ULL /* bit 33 */
 #define ldlm_is_skipped(_l)             LDLM_TEST_FLAG((_l), 1ULL << 33)
 #define ldlm_set_skipped(_l)            LDLM_SET_FLAG((_l), 1ULL << 33)
@@ -231,7 +239,8 @@
  * The proper fix is to do the granting inside of the completion AST,
  * which can be replaced with a LVB-aware wrapping function for OSC locks.
  * That change is pretty high-risk, though, and would need a lot more
- * testing. */
+ * testing.
+ */
 #define LDLM_FL_LVB_READY               0x0000020000000000ULL /* bit 41 */
 #define ldlm_is_lvb_ready(_l)           LDLM_TEST_FLAG((_l), 1ULL << 41)
 #define ldlm_set_lvb_ready(_l)          LDLM_SET_FLAG((_l), 1ULL << 41)
@@ -243,7 +252,8 @@
  * dirty pages.  It can remain on the granted list during this whole time.
  * Threads racing to update the KMS after performing their writeback need
  * to know to exclude each other's locks from the calculation as they walk
- * the granted list. */
+ * the granted list.
+ */
 #define LDLM_FL_KMS_IGNORE              0x0000040000000000ULL /* bit 42 */
 #define ldlm_is_kms_ignore(_l)          LDLM_TEST_FLAG((_l), 1ULL << 42)
 #define ldlm_set_kms_ignore(_l)         LDLM_SET_FLAG((_l), 1ULL << 42)
@@ -263,7 +273,8 @@
 
 /**
  * optimization hint: LDLM can run blocking callback from current context
- * w/o involving separate thread. in order to decrease cs rate */
+ * w/o involving separate thread. in order to decrease cs rate
+ */
 #define LDLM_FL_ATOMIC_CB               0x0000200000000000ULL /* bit 45 */
 #define ldlm_is_atomic_cb(_l)           LDLM_TEST_FLAG((_l), 1ULL << 45)
 #define ldlm_set_atomic_cb(_l)          LDLM_SET_FLAG((_l), 1ULL << 45)
@@ -280,7 +291,8 @@
  * LDLM_FL_BL_DONE is to be set by ldlm_cancel_callback() when lock cache is
  * dropped to let ldlm_callback_handler() return EINVAL to the server. It
  * is used when ELC RPC is already prepared and is waiting for rpc_lock,
- * too late to send a separate CANCEL RPC. */
+ * too late to send a separate CANCEL RPC.
+ */
 #define LDLM_FL_BL_AST                  0x0000400000000000ULL /* bit 46 */
 #define ldlm_is_bl_ast(_l)              LDLM_TEST_FLAG((_l), 1ULL << 46)
 #define ldlm_set_bl_ast(_l)             LDLM_SET_FLAG((_l), 1ULL << 46)
@@ -295,7 +307,8 @@
 /**
  * Don't put lock into the LRU list, so that it is not canceled due
  * to aging.  Used by MGC locks, they are cancelled only at unmount or
- * by callback. */
+ * by callback.
+ */
 #define LDLM_FL_NO_LRU                  0x0001000000000000ULL /* bit 48 */
 #define ldlm_is_no_lru(_l)              LDLM_TEST_FLAG((_l), 1ULL << 48)
 #define ldlm_set_no_lru(_l)             LDLM_SET_FLAG((_l), 1ULL << 48)
@@ -304,7 +317,8 @@
 /**
  * Set for locks that failed and where the server has been notified.
  *
- * Protected by lock and resource locks. */
+ * Protected by lock and resource locks.
+ */
 #define LDLM_FL_FAIL_NOTIFIED           0x0002000000000000ULL /* bit 49 */
 #define ldlm_is_fail_notified(_l)       LDLM_TEST_FLAG((_l), 1ULL << 49)
 #define ldlm_set_fail_notified(_l)      LDLM_SET_FLAG((_l), 1ULL << 49)
@@ -315,7 +329,8 @@
  * be destroyed when last reference to them is released. Set by
  * ldlm_lock_destroy_internal().
  *
- * Protected by lock and resource locks. */
+ * Protected by lock and resource locks.
+ */
 #define LDLM_FL_DESTROYED               0x0004000000000000ULL /* bit 50 */
 #define ldlm_is_destroyed(_l)           LDLM_TEST_FLAG((_l), 1ULL << 50)
 #define ldlm_set_destroyed(_l)          LDLM_SET_FLAG((_l), 1ULL << 50)
@@ -333,7 +348,8 @@
  * NB: compared with check_res_locked(), checking this bit is cheaper.
  * Also, spin_is_locked() is deprecated for kernel code; one reason is
  * because it works only for SMP so user needs to add extra macros like
- * LASSERT_SPIN_LOCKED for uniprocessor kernels. */
+ * LASSERT_SPIN_LOCKED for uniprocessor kernels.
+ */
 #define LDLM_FL_RES_LOCKED              0x0010000000000000ULL /* bit 52 */
 #define ldlm_is_res_locked(_l)          LDLM_TEST_FLAG((_l), 1ULL << 52)
 #define ldlm_set_res_locked(_l)         LDLM_SET_FLAG((_l), 1ULL << 52)
@@ -343,7 +359,8 @@
  * It's set once we call ldlm_add_waiting_lock_res_locked() to start the
  * lock-timeout timer and it will never be reset.
  *
- * Protected by lock and resource locks. */
+ * Protected by lock and resource locks.
+ */
 #define LDLM_FL_WAITED                  0x0020000000000000ULL /* bit 53 */
 #define ldlm_is_waited(_l)              LDLM_TEST_FLAG((_l), 1ULL << 53)
 #define ldlm_set_waited(_l)             LDLM_SET_FLAG((_l), 1ULL << 53)
@@ -365,10 +382,10 @@
 #define LDLM_TEST_FLAG(_l, _b)        (((_l)->l_flags & (_b)) != 0)
 
 /** set a ldlm_lock flag bit */
-#define LDLM_SET_FLAG(_l, _b)         (((_l)->l_flags |= (_b))
+#define LDLM_SET_FLAG(_l, _b)         ((_l)->l_flags |= (_b))
 
 /** clear a ldlm_lock flag bit */
-#define LDLM_CLEAR_FLAG(_l, _b)       (((_l)->l_flags &= ~(_b))
+#define LDLM_CLEAR_FLAG(_l, _b)       ((_l)->l_flags &= ~(_b))
 
 /** Mask of flags inherited from parent lock when doing intents. */
 #define LDLM_INHERIT_FLAGS            LDLM_FL_INHERIT_MASK
diff --git a/drivers/staging/lustre/lustre/include/lustre_export.h b/drivers/staging/lustre/lustre/include/lustre_export.h
index a030a98f..3014d27 100644
--- a/drivers/staging/lustre/lustre/include/lustre_export.h
+++ b/drivers/staging/lustre/lustre/include/lustre_export.h
@@ -50,62 +50,6 @@
 #include "lustre/lustre_idl.h"
 #include "lustre_dlm.h"
 
-struct mds_client_data;
-struct mdt_client_data;
-struct mds_idmap_table;
-struct mdt_idmap_table;
-
-/**
- * Target-specific export data
- */
-struct tg_export_data {
-	/** Protects led_lcd below */
-	struct mutex		ted_lcd_lock;
-	/** Per-client data for each export */
-	struct lsd_client_data	*ted_lcd;
-	/** Offset of record in last_rcvd file */
-	loff_t			ted_lr_off;
-	/** Client index in last_rcvd file */
-	int			ted_lr_idx;
-};
-
-/**
- * MDT-specific export data
- */
-struct mdt_export_data {
-	struct tg_export_data	med_ted;
-	/** List of all files opened by client on this MDT */
-	struct list_head		med_open_head;
-	spinlock_t		med_open_lock; /* med_open_head, mfd_list */
-	/** Bitmask of all ibit locks this MDT understands */
-	__u64			med_ibits_known;
-	struct mutex		med_idmap_mutex;
-	struct lustre_idmap_table *med_idmap;
-};
-
-struct ec_export_data { /* echo client */
-	struct list_head eced_locks;
-};
-
-/* In-memory access to client data from OST struct */
-/** Filter (oss-side) specific import data */
-struct filter_export_data {
-	struct tg_export_data	fed_ted;
-	spinlock_t		fed_lock;	/**< protects fed_mod_list */
-	long		       fed_dirty;    /* in bytes */
-	long		       fed_grant;    /* in bytes */
-	struct list_head		 fed_mod_list; /* files being modified */
-	int			fed_mod_count;/* items in fed_writing list */
-	long		       fed_pending;  /* bytes just being written */
-	__u32		      fed_group;
-	__u8		       fed_pagesize; /* log2 of client page size */
-};
-
-struct mgs_export_data {
-	struct list_head		med_clients;	/* mgc fs client via this exp */
-	spinlock_t		med_lock;	/* protect med_clients */
-};
-
 enum obd_option {
 	OBD_OPT_FORCE =	 0x0001,
 	OBD_OPT_FAILOVER =      0x0002,
@@ -179,7 +123,8 @@ struct obd_export {
 	 */
 	spinlock_t		  exp_lock;
 	/** Compatibility flags for this export are embedded into
-	 *  exp_connect_data */
+	 *  exp_connect_data
+	 */
 	struct obd_connect_data   exp_connect_data;
 	enum obd_option	   exp_flags;
 	unsigned long	     exp_failed:1,
@@ -200,22 +145,8 @@ struct obd_export {
 	/** blocking dlm lock list, protected by exp_bl_list_lock */
 	struct list_head		exp_bl_list;
 	spinlock_t		  exp_bl_list_lock;
-
-	/** Target specific data */
-	union {
-		struct tg_export_data     eu_target_data;
-		struct mdt_export_data    eu_mdt_data;
-		struct filter_export_data eu_filter_data;
-		struct ec_export_data     eu_ec_data;
-		struct mgs_export_data    eu_mgs_data;
-	} u;
 };
 
-#define exp_target_data u.eu_target_data
-#define exp_mdt_data    u.eu_mdt_data
-#define exp_filter_data u.eu_filter_data
-#define exp_ec_data     u.eu_ec_data
-
 static inline __u64 *exp_connect_flags_ptr(struct obd_export *exp)
 {
 	return &exp->exp_connect_data.ocd_connect_flags;
@@ -228,7 +159,6 @@ static inline __u64 exp_connect_flags(struct obd_export *exp)
 
 static inline int exp_max_brw_size(struct obd_export *exp)
 {
-	LASSERT(exp != NULL);
 	if (exp_connect_flags(exp) & OBD_CONNECT_BRW_SIZE)
 		return exp->exp_connect_data.ocd_brw_size;
 
@@ -242,19 +172,16 @@ static inline int exp_connect_multibulk(struct obd_export *exp)
 
 static inline int exp_connect_cancelset(struct obd_export *exp)
 {
-	LASSERT(exp != NULL);
 	return !!(exp_connect_flags(exp) & OBD_CONNECT_CANCELSET);
 }
 
 static inline int exp_connect_lru_resize(struct obd_export *exp)
 {
-	LASSERT(exp != NULL);
 	return !!(exp_connect_flags(exp) & OBD_CONNECT_LRU_RESIZE);
 }
 
 static inline int exp_connect_rmtclient(struct obd_export *exp)
 {
-	LASSERT(exp != NULL);
 	return !!(exp_connect_flags(exp) & OBD_CONNECT_RMT_CLIENT);
 }
 
@@ -268,14 +195,11 @@ static inline int client_is_remote(struct obd_export *exp)
 
 static inline int exp_connect_vbr(struct obd_export *exp)
 {
-	LASSERT(exp != NULL);
-	LASSERT(exp->exp_connection);
 	return !!(exp_connect_flags(exp) & OBD_CONNECT_VBR);
 }
 
 static inline int exp_connect_som(struct obd_export *exp)
 {
-	LASSERT(exp != NULL);
 	return !!(exp_connect_flags(exp) & OBD_CONNECT_SOM);
 }
 
@@ -288,7 +212,6 @@ static inline int imp_connect_lru_resize(struct obd_import *imp)
 {
 	struct obd_connect_data *ocd;
 
-	LASSERT(imp != NULL);
 	ocd = &imp->imp_connect_data;
 	return !!(ocd->ocd_connect_flags & OBD_CONNECT_LRU_RESIZE);
 }
@@ -300,7 +223,6 @@ static inline int exp_connect_layout(struct obd_export *exp)
 
 static inline bool exp_connect_lvb_type(struct obd_export *exp)
 {
-	LASSERT(exp != NULL);
 	if (exp_connect_flags(exp) & OBD_CONNECT_LVB_TYPE)
 		return true;
 	else
@@ -311,7 +233,6 @@ static inline bool imp_connect_lvb_type(struct obd_import *imp)
 {
 	struct obd_connect_data *ocd;
 
-	LASSERT(imp != NULL);
 	ocd = &imp->imp_connect_data;
 	if (ocd->ocd_connect_flags & OBD_CONNECT_LVB_TYPE)
 		return true;
@@ -331,7 +252,6 @@ static inline bool imp_connect_disp_stripe(struct obd_import *imp)
 {
 	struct obd_connect_data *ocd;
 
-	LASSERT(imp != NULL);
 	ocd = &imp->imp_connect_data;
 	return ocd->ocd_connect_flags & OBD_CONNECT_DISP_STRIPE;
 }
diff --git a/drivers/staging/lustre/lustre/include/lustre_fid.h b/drivers/staging/lustre/lustre/include/lustre_fid.h
index 9b1a9c6..ab91879 100644
--- a/drivers/staging/lustre/lustre/include/lustre_fid.h
+++ b/drivers/staging/lustre/lustre/include/lustre_fid.h
@@ -251,7 +251,8 @@ static inline void lu_local_name_obj_fid(struct lu_fid *fid, __u32 oid)
 
 /* For new FS (>= 2.4), the root FID will be changed to
  * [FID_SEQ_ROOT:1:0], for existing FS, (upgraded to 2.4),
- * the root FID will still be IGIF */
+ * the root FID will still be IGIF
+ */
 static inline int fid_is_root(const struct lu_fid *fid)
 {
 	return unlikely((fid_seq(fid) == FID_SEQ_ROOT &&
@@ -294,7 +295,8 @@ static inline int fid_is_namespace_visible(const struct lu_fid *fid)
 	const __u64 seq = fid_seq(fid);
 
 	/* Here, we cannot distinguish whether the normal FID is for OST
-	 * object or not. It is caller's duty to check more if needed. */
+	 * object or not. It is caller's duty to check more if needed.
+	 */
 	return (!fid_is_last_id(fid) &&
 		(fid_seq_is_norm(seq) || fid_seq_is_igif(seq))) ||
 	       fid_is_root(fid) || fid_is_dot_lustre(fid);
@@ -516,7 +518,8 @@ static inline int ostid_res_name_eq(struct ost_id *oi,
 				    struct ldlm_res_id *name)
 {
 	/* Note: it is just a trick here to save some effort, probably the
-	 * correct way would be turn them into the FID and compare */
+	 * correct way would be turn them into the FID and compare
+	 */
 	if (fid_seq_is_mdt0(ostid_seq(oi))) {
 		return name->name[LUSTRE_RES_ID_SEQ_OFF] == ostid_id(oi) &&
 		       name->name[LUSTRE_RES_ID_VER_OID_OFF] == ostid_seq(oi);
@@ -589,12 +592,14 @@ static inline __u64 fid_flatten(const struct lu_fid *fid)
 static inline __u32 fid_hash(const struct lu_fid *f, int bits)
 {
 	/* all objects with same id and different versions will belong to same
-	 * collisions list. */
+	 * collisions list.
+	 */
 	return hash_long(fid_flatten(f), bits);
 }
 
 /**
- * map fid to 32 bit value for ino on 32bit systems. */
+ * map fid to 32 bit value for ino on 32bit systems.
+ */
 static inline __u32 fid_flatten32(const struct lu_fid *fid)
 {
 	__u32 ino;
@@ -611,7 +616,8 @@ static inline __u32 fid_flatten32(const struct lu_fid *fid)
 	 * that inodes generated at about the same time have a reduced chance
 	 * of collisions. This will give a period of 2^12 = 1024 unique clients
 	 * (from SEQ) and up to min(LUSTRE_SEQ_MAX_WIDTH, 2^20) = 128k objects
-	 * (from OID), or up to 128M inodes without collisions for new files. */
+	 * (from OID), or up to 128M inodes without collisions for new files.
+	 */
 	ino = ((seq & 0x000fffffULL) << 12) + ((seq >> 8) & 0xfffff000) +
 	       (seq >> (64 - (40-8)) & 0xffffff00) +
 	       (fid_oid(fid) & 0xff000fff) + ((fid_oid(fid) & 0x00fff000) << 8);
diff --git a/drivers/staging/lustre/lustre/include/lustre_fld.h b/drivers/staging/lustre/lustre/include/lustre_fld.h
index 5511626..4cf2b0e 100644
--- a/drivers/staging/lustre/lustre/include/lustre_fld.h
+++ b/drivers/staging/lustre/lustre/include/lustre_fld.h
@@ -71,50 +71,41 @@ struct lu_fld_target {
 struct lu_server_fld {
 	/**
 	 * super sequence controller export, needed to forward fld
-	 * lookup  request. */
+	 * lookup  request.
+	 */
 	struct obd_export       *lsf_control_exp;
 
-	/**
-	 * Client FLD cache. */
+	/** Client FLD cache. */
 	struct fld_cache	*lsf_cache;
 
-	/**
-	 * Protect index modifications */
+	/** Protect index modifications */
 	struct mutex		lsf_lock;
 
-	/**
-	 * Fld service name in form "fld-srv-lustre-MDTXXX" */
+	/** Fld service name in form "fld-srv-lustre-MDTXXX" */
 	char		     lsf_name[LUSTRE_MDT_MAXNAMELEN];
 
 };
 
 struct lu_client_fld {
-	/**
-	 * Client side debugfs entry. */
+	/** Client side debugfs entry. */
 	struct dentry		*lcf_debugfs_entry;
 
-	/**
-	 * List of exports client FLD knows about. */
+	/** List of exports client FLD knows about. */
 	struct list_head	       lcf_targets;
 
-	/**
-	 * Current hash to be used to chose an export. */
+	/** Current hash to be used to chose an export. */
 	struct lu_fld_hash      *lcf_hash;
 
-	/**
-	 * Exports count. */
+	/** Exports count. */
 	int		      lcf_count;
 
-	/**
-	 * Lock protecting exports list and fld_hash. */
+	/** Lock protecting exports list and fld_hash. */
 	spinlock_t		 lcf_lock;
 
-	/**
-	 * Client FLD cache. */
+	/** Client FLD cache. */
 	struct fld_cache	*lcf_cache;
 
-	/**
-	 * Client fld debugfs entry name. */
+	/** Client fld debugfs entry name. */
 	char			 lcf_name[LUSTRE_MDT_MAXNAMELEN];
 
 	int			 lcf_flags;
diff --git a/drivers/staging/lustre/lustre/include/lustre_handles.h b/drivers/staging/lustre/lustre/include/lustre_handles.h
index f39780a..27f169d 100644
--- a/drivers/staging/lustre/lustre/include/lustre_handles.h
+++ b/drivers/staging/lustre/lustre/include/lustre_handles.h
@@ -65,7 +65,8 @@ struct portals_handle_ops {
  *
  * Now you're able to assign the results of cookie2handle directly to an
  * ldlm_lock.  If it's not at the top, you'll want to use container_of()
- * to compute the start of the structure based on the handle field. */
+ * to compute the start of the structure based on the handle field.
+ */
 struct portals_handle {
 	struct list_head			h_link;
 	__u64				h_cookie;
diff --git a/drivers/staging/lustre/lustre/include/lustre_import.h b/drivers/staging/lustre/lustre/include/lustre_import.h
index 4e4230e..dac2d84 100644
--- a/drivers/staging/lustre/lustre/include/lustre_import.h
+++ b/drivers/staging/lustre/lustre/include/lustre_import.h
@@ -292,7 +292,8 @@ struct obd_import {
 				  /* need IR MNE swab */
 				  imp_need_mne_swab:1,
 				  /* import must be reconnected instead of
-				   * chose new connection */
+				   * chosing new connection
+				   */
 				  imp_force_reconnect:1,
 				  /* import has tried to connect with server */
 				  imp_connect_tried:1;
diff --git a/drivers/staging/lustre/lustre/include/lustre_lib.h b/drivers/staging/lustre/lustre/include/lustre_lib.h
index cfccf7c..f2223d5 100644
--- a/drivers/staging/lustre/lustre/include/lustre_lib.h
+++ b/drivers/staging/lustre/lustre/include/lustre_lib.h
@@ -387,7 +387,8 @@ static inline void obd_ioctl_freedata(char *buf, int len)
  */
 
 /* Until such time as we get_info the per-stripe maximum from the OST,
- * we define this to be 2T - 4k, which is the ext3 maxbytes. */
+ * we define this to be 2T - 4k, which is the ext3 maxbytes.
+ */
 #define LUSTRE_STRIPE_MAXBYTES 0x1fffffff000ULL
 
 /* Special values for remove LOV EA from disk */
@@ -540,7 +541,7 @@ do {									   \
 	l_add_wait(&wq, &__wait);					      \
 									       \
 	/* Block all signals (just the non-fatal ones if no timeout). */       \
-	if (info->lwi_on_signal != NULL && (__timeout == 0 || __allow_intr))   \
+	if (info->lwi_on_signal && (__timeout == 0 || __allow_intr))   \
 		__blocked = cfs_block_sigsinv(LUSTRE_FATAL_SIGS);	      \
 	else								   \
 		__blocked = cfs_block_sigsinv(0);			      \
@@ -562,13 +563,13 @@ do {									   \
 			__timeout = cfs_time_sub(__timeout,		    \
 					    cfs_time_sub(interval, remaining));\
 			if (__timeout == 0) {				  \
-				if (info->lwi_on_timeout == NULL ||	    \
+				if (!info->lwi_on_timeout ||		      \
 				    info->lwi_on_timeout(info->lwi_cb_data)) { \
 					ret = -ETIMEDOUT;		      \
 					break;				 \
 				}					      \
 				/* Take signals after the timeout expires. */  \
-				if (info->lwi_on_signal != NULL)	       \
+				if (info->lwi_on_signal)		       \
 				    (void)cfs_block_sigsinv(LUSTRE_FATAL_SIGS);\
 			}						      \
 		}							      \
@@ -578,7 +579,7 @@ do {									   \
 		if (condition)						 \
 			break;						 \
 		if (cfs_signal_pending()) {				    \
-			if (info->lwi_on_signal != NULL &&		     \
+			if (info->lwi_on_signal &&		     \
 			    (__timeout == 0 || __allow_intr)) {		\
 				if (info->lwi_on_signal != LWI_ON_SIGNAL_NOOP) \
 					info->lwi_on_signal(info->lwi_cb_data);\
diff --git a/drivers/staging/lustre/lustre/include/lustre_log.h b/drivers/staging/lustre/lustre/include/lustre_log.h
index e4fc8b5..49618e1 100644
--- a/drivers/staging/lustre/lustre/include/lustre_log.h
+++ b/drivers/staging/lustre/lustre/include/lustre_log.h
@@ -241,7 +241,8 @@ struct llog_ctxt {
 	struct obd_llog_group   *loc_olg; /* group containing that ctxt */
 	struct obd_export       *loc_exp; /* parent "disk" export (e.g. MDS) */
 	struct obd_import       *loc_imp; /* to use in RPC's: can be backward
-					     pointing import */
+					   * pointing import
+					   */
 	struct llog_operations  *loc_logops;
 	struct llog_handle      *loc_handle;
 	struct mutex		 loc_mutex; /* protect loc_imp */
@@ -255,7 +256,7 @@ struct llog_ctxt {
 static inline int llog_handle2ops(struct llog_handle *loghandle,
 				  struct llog_operations **lop)
 {
-	if (loghandle == NULL || loghandle->lgh_logops == NULL)
+	if (!loghandle || !loghandle->lgh_logops)
 		return -EINVAL;
 
 	*lop = loghandle->lgh_logops;
@@ -272,7 +273,7 @@ static inline struct llog_ctxt *llog_ctxt_get(struct llog_ctxt *ctxt)
 
 static inline void llog_ctxt_put(struct llog_ctxt *ctxt)
 {
-	if (ctxt == NULL)
+	if (!ctxt)
 		return;
 	LASSERT_ATOMIC_GT_LT(&ctxt->loc_refcount, 0, LI_POISON);
 	CDEBUG(D_INFO, "PUTting ctxt %p : new refcount %d\n", ctxt,
@@ -294,7 +295,7 @@ static inline int llog_group_set_ctxt(struct obd_llog_group *olg,
 	LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
 
 	spin_lock(&olg->olg_lock);
-	if (olg->olg_ctxts[index] != NULL) {
+	if (olg->olg_ctxts[index]) {
 		spin_unlock(&olg->olg_lock);
 		return -EEXIST;
 	}
@@ -311,7 +312,7 @@ static inline struct llog_ctxt *llog_group_get_ctxt(struct obd_llog_group *olg,
 	LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
 
 	spin_lock(&olg->olg_lock);
-	if (olg->olg_ctxts[index] == NULL)
+	if (!olg->olg_ctxts[index])
 		ctxt = NULL;
 	else
 		ctxt = llog_ctxt_get(olg->olg_ctxts[index]);
@@ -335,7 +336,7 @@ static inline struct llog_ctxt *llog_get_context(struct obd_device *obd,
 
 static inline int llog_group_ctxt_null(struct obd_llog_group *olg, int index)
 {
-	return (olg->olg_ctxts[index] == NULL);
+	return (!olg->olg_ctxts[index]);
 }
 
 static inline int llog_ctxt_null(struct obd_device *obd, int index)
@@ -354,7 +355,7 @@ static inline int llog_next_block(const struct lu_env *env,
 	rc = llog_handle2ops(loghandle, &lop);
 	if (rc)
 		return rc;
-	if (lop->lop_next_block == NULL)
+	if (!lop->lop_next_block)
 		return -EOPNOTSUPP;
 
 	rc = lop->lop_next_block(env, loghandle, cur_idx, next_idx,
diff --git a/drivers/staging/lustre/lustre/include/lustre_mdc.h b/drivers/staging/lustre/lustre/include/lustre_mdc.h
index 3da3733..df94f9f 100644
--- a/drivers/staging/lustre/lustre/include/lustre_mdc.h
+++ b/drivers/staging/lustre/lustre/include/lustre_mdc.h
@@ -81,8 +81,8 @@ static inline void mdc_init_rpc_lock(struct mdc_rpc_lock *lck)
 static inline void mdc_get_rpc_lock(struct mdc_rpc_lock *lck,
 				    struct lookup_intent *it)
 {
-	if (it != NULL && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
-			   it->it_op == IT_LAYOUT))
+	if (it && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
+		   it->it_op == IT_LAYOUT))
 		return;
 
 	/* This would normally block until the existing request finishes.
@@ -90,7 +90,8 @@ static inline void mdc_get_rpc_lock(struct mdc_rpc_lock *lck,
 	 * done, then set rpcl_it to MDC_FAKE_RPCL_IT.  Once that is set
 	 * it will only be cleared when all fake requests are finished.
 	 * Only when all fake requests are finished can normal requests
-	 * be sent, to ensure they are recoverable again. */
+	 * be sent, to ensure they are recoverable again.
+	 */
  again:
 	mutex_lock(&lck->rpcl_mutex);
 
@@ -105,22 +106,23 @@ static inline void mdc_get_rpc_lock(struct mdc_rpc_lock *lck,
 	 * just turned off but there are still requests in progress.
 	 * Wait until they finish.  It doesn't need to be efficient
 	 * in this extremely rare case, just have low overhead in
-	 * the common case when it isn't true. */
+	 * the common case when it isn't true.
+	 */
 	while (unlikely(lck->rpcl_it == MDC_FAKE_RPCL_IT)) {
 		mutex_unlock(&lck->rpcl_mutex);
 		schedule_timeout(cfs_time_seconds(1) / 4);
 		goto again;
 	}
 
-	LASSERT(lck->rpcl_it == NULL);
+	LASSERT(!lck->rpcl_it);
 	lck->rpcl_it = it;
 }
 
 static inline void mdc_put_rpc_lock(struct mdc_rpc_lock *lck,
 				    struct lookup_intent *it)
 {
-	if (it != NULL && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
-			   it->it_op == IT_LAYOUT))
+	if (it && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
+		   it->it_op == IT_LAYOUT))
 		return;
 
 	if (lck->rpcl_it == MDC_FAKE_RPCL_IT) { /* OBD_FAIL_MDC_RPCS_SEM */
diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h b/drivers/staging/lustre/lustre/include/lustre_net.h
index d834ddd..ac08b25 100644
--- a/drivers/staging/lustre/lustre/include/lustre_net.h
+++ b/drivers/staging/lustre/lustre/include/lustre_net.h
@@ -76,7 +76,8 @@
  * In order for the client and server to properly negotiate the maximum
  * possible transfer size, PTLRPC_BULK_OPS_COUNT must be a power-of-two
  * value.  The client is free to limit the actual RPC size for any bulk
- * transfer via cl_max_pages_per_rpc to some non-power-of-two value. */
+ * transfer via cl_max_pages_per_rpc to some non-power-of-two value.
+ */
 #define PTLRPC_BULK_OPS_BITS	2
 #define PTLRPC_BULK_OPS_COUNT	(1U << PTLRPC_BULK_OPS_BITS)
 /**
@@ -85,7 +86,8 @@
  * protocol limitation on the maximum RPC size that can be used by any
  * RPC sent to that server in the future.  Instead, the server should
  * use the negotiated per-client ocd_brw_size to determine the bulk
- * RPC count. */
+ * RPC count.
+ */
 #define PTLRPC_BULK_OPS_MASK	(~((__u64)PTLRPC_BULK_OPS_COUNT - 1))
 
 /**
@@ -419,16 +421,18 @@ struct ptlrpc_reply_state {
 	/** A spinlock to protect the reply state flags */
 	spinlock_t		rs_lock;
 	/** Reply state flags */
-	unsigned long	  rs_difficult:1;     /* ACK/commit stuff */
+	unsigned long	  rs_difficult:1; /* ACK/commit stuff */
 	unsigned long	  rs_no_ack:1;    /* no ACK, even for
-						  difficult requests */
+					   * difficult requests
+					   */
 	unsigned long	  rs_scheduled:1;     /* being handled? */
 	unsigned long	  rs_scheduled_ever:1;/* any schedule attempts? */
 	unsigned long	  rs_handled:1;  /* been handled yet? */
 	unsigned long	  rs_on_net:1;   /* reply_out_callback pending? */
 	unsigned long	  rs_prealloc:1; /* rs from prealloc list */
 	unsigned long	  rs_committed:1;/* the transaction was committed
-					  * and the rs was dispatched */
+					  * and the rs was dispatched
+					  */
 	/** Size of the state */
 	int		    rs_size;
 	/** opcode */
@@ -463,7 +467,7 @@ struct ptlrpc_reply_state {
 	/** Handles of locks awaiting client reply ACK */
 	struct lustre_handle   rs_locks[RS_MAX_LOCKS];
 	/** Lock modes of locks in \a rs_locks */
-	ldlm_mode_t	    rs_modes[RS_MAX_LOCKS];
+	enum ldlm_mode	    rs_modes[RS_MAX_LOCKS];
 };
 
 struct ptlrpc_thread;
@@ -1181,7 +1185,7 @@ struct nrs_fifo_req {
  * purpose of this object is to hold references to the request's resources
  * for the lifetime of the request, and to hold properties that policies use
  * use for determining the request's scheduling priority.
- * */
+ */
 struct ptlrpc_nrs_request {
 	/**
 	 * The request's resource hierarchy.
@@ -1321,15 +1325,17 @@ struct ptlrpc_request {
 		/* do not resend request on -EINPROGRESS */
 		rq_no_retry_einprogress:1,
 		/* allow the req to be sent if the import is in recovery
-		 * status */
+		 * status
+		 */
 		rq_allow_replay:1;
 
 	unsigned int rq_nr_resend;
 
 	enum rq_phase rq_phase; /* one of RQ_PHASE_* */
 	enum rq_phase rq_next_phase; /* one of RQ_PHASE_* to be used next */
-	atomic_t rq_refcount;/* client-side refcount for SENT race,
-				    server-side refcount for multiple replies */
+	atomic_t rq_refcount; /* client-side refcount for SENT race,
+			       * server-side refcount for multiple replies
+			       */
 
 	/** Portal to which this request would be sent */
 	short rq_request_portal;  /* XXX FIXME bug 249 */
@@ -1363,7 +1369,8 @@ struct ptlrpc_request {
 
 	/**
 	 * security and encryption data
-	 * @{ */
+	 * @{
+	 */
 	struct ptlrpc_cli_ctx   *rq_cli_ctx;     /**< client's half ctx */
 	struct ptlrpc_svc_ctx   *rq_svc_ctx;     /**< server's half ctx */
 	struct list_head	       rq_ctx_chain;   /**< link to waited ctx */
@@ -1477,7 +1484,8 @@ struct ptlrpc_request {
 
 	/** when request must finish. volatile
 	 * so that servers' early reply updates to the deadline aren't
-	 * kept in per-cpu cache */
+	 * kept in per-cpu cache
+	 */
 	volatile time64_t rq_deadline;
 	/** when req reply unlink must finish. */
 	time64_t rq_reply_deadline;
@@ -1518,7 +1526,7 @@ struct ptlrpc_request {
 static inline int ptlrpc_req_interpret(const struct lu_env *env,
 				       struct ptlrpc_request *req, int rc)
 {
-	if (req->rq_interpret_reply != NULL) {
+	if (req->rq_interpret_reply) {
 		req->rq_status = req->rq_interpret_reply(env, req,
 							 &req->rq_async_args,
 							 rc);
@@ -1678,7 +1686,8 @@ do {									  \
 /**
  * This is the debug print function you need to use to print request structure
  * content into lustre debug log.
- * for most callers (level is a constant) this is resolved at compile time */
+ * for most callers (level is a constant) this is resolved at compile time
+ */
 #define DEBUG_REQ(level, req, fmt, args...)				   \
 do {									  \
 	if ((level) & (D_ERROR | D_WARNING)) {				\
@@ -1947,7 +1956,7 @@ struct ptlrpc_service_ops {
  * or general metadata service for MDS.
  */
 struct ptlrpc_service {
-	/** serialize /proc operations */
+	/** serialize sysfs operations */
 	spinlock_t			srv_lock;
 	/** most often accessed fields */
 	/** chain thru all services */
@@ -2101,7 +2110,8 @@ struct ptlrpc_service_part {
 	/** NRS head for regular requests */
 	struct ptlrpc_nrs		scp_nrs_reg;
 	/** NRS head for HP requests; this is only valid for services that can
-	 *  handle HP requests */
+	 *  handle HP requests
+	 */
 	struct ptlrpc_nrs	       *scp_nrs_hp;
 
 	/** AT stuff */
@@ -2141,8 +2151,8 @@ struct ptlrpc_service_part {
 #define ptlrpc_service_for_each_part(part, i, svc)			\
 	for (i = 0;							\
 	     i < (svc)->srv_ncpts &&					\
-	     (svc)->srv_parts != NULL &&				\
-	     ((part) = (svc)->srv_parts[i]) != NULL; i++)
+	     (svc)->srv_parts &&					\
+	     ((part) = (svc)->srv_parts[i]); i++)
 
 /**
  * Declaration of ptlrpcd control structure
@@ -2259,7 +2269,6 @@ static inline bool nrs_policy_compat_all(const struct ptlrpc_service *svc,
 static inline bool nrs_policy_compat_one(const struct ptlrpc_service *svc,
 					 const struct ptlrpc_nrs_pol_desc *desc)
 {
-	LASSERT(desc->pd_compat_svc_name != NULL);
 	return strcmp(svc->srv_name, desc->pd_compat_svc_name) == 0;
 }
 
@@ -2303,7 +2312,6 @@ static inline int ptlrpc_client_bulk_active(struct ptlrpc_request *req)
 	struct ptlrpc_bulk_desc *desc;
 	int		      rc;
 
-	LASSERT(req != NULL);
 	desc = req->rq_bulk;
 
 	if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_BULK_UNLINK) &&
@@ -2462,7 +2470,8 @@ struct ptlrpc_service_thr_conf {
 	/* "soft" limit for total threads number */
 	unsigned int			tc_nthrs_max;
 	/* user specified threads number, it will be validated due to
-	 * other members of this structure. */
+	 * other members of this structure.
+	 */
 	unsigned int			tc_nthrs_user;
 	/* set NUMA node affinity for service threads */
 	unsigned int			tc_cpu_affinity;
@@ -2726,7 +2735,7 @@ ptlrpc_client_recv_or_unlink(struct ptlrpc_request *req)
 static inline void
 ptlrpc_client_wake_req(struct ptlrpc_request *req)
 {
-	if (req->rq_set == NULL)
+	if (!req->rq_set)
 		wake_up(&req->rq_reply_waitq);
 	else
 		wake_up(&req->rq_set->set_waitq);
@@ -2750,7 +2759,7 @@ ptlrpc_rs_decref(struct ptlrpc_reply_state *rs)
 /* Should only be called once per req */
 static inline void ptlrpc_req_drop_rs(struct ptlrpc_request *req)
 {
-	if (req->rq_reply_state == NULL)
+	if (!req->rq_reply_state)
 		return; /* shouldn't occur */
 	ptlrpc_rs_decref(req->rq_reply_state);
 	req->rq_reply_state = NULL;
@@ -2807,7 +2816,6 @@ ptlrpc_server_get_timeout(struct ptlrpc_service_part *svcpt)
 static inline struct ptlrpc_service *
 ptlrpc_req2svc(struct ptlrpc_request *req)
 {
-	LASSERT(req->rq_rqbd != NULL);
 	return req->rq_rqbd->rqbd_svcpt->scp_service;
 }
 
diff --git a/drivers/staging/lustre/lustre/include/lustre_req_layout.h b/drivers/staging/lustre/lustre/include/lustre_req_layout.h
index 46a662f..b5128e4 100644
--- a/drivers/staging/lustre/lustre/include/lustre_req_layout.h
+++ b/drivers/staging/lustre/lustre/include/lustre_req_layout.h
@@ -130,7 +130,6 @@ void req_layout_fini(void);
 extern struct req_format RQF_OBD_PING;
 extern struct req_format RQF_OBD_SET_INFO;
 extern struct req_format RQF_SEC_CTX;
-extern struct req_format RQF_OBD_IDX_READ;
 /* MGS req_format */
 extern struct req_format RQF_MGS_TARGET_REG;
 extern struct req_format RQF_MGS_SET_INFO;
@@ -146,7 +145,6 @@ extern struct req_format RQF_MDS_GETSTATUS;
 extern struct req_format RQF_MDS_SYNC;
 extern struct req_format RQF_MDS_GETXATTR;
 extern struct req_format RQF_MDS_GETATTR;
-extern struct req_format RQF_UPDATE_OBJ;
 
 /*
  * This is format of direct (non-intent) MDS_GETATTR_NAME request.
@@ -177,7 +175,6 @@ extern struct req_format RQF_MDS_REINT_SETXATTR;
 extern struct req_format RQF_MDS_QUOTACHECK;
 extern struct req_format RQF_MDS_QUOTACTL;
 extern struct req_format RQF_QC_CALLBACK;
-extern struct req_format RQF_QUOTA_DQACQ;
 extern struct req_format RQF_MDS_SWAP_LAYOUTS;
 /* MDS hsm formats */
 extern struct req_format RQF_MDS_HSM_STATE_GET;
@@ -220,7 +217,6 @@ extern struct req_format RQF_LDLM_INTENT_OPEN;
 extern struct req_format RQF_LDLM_INTENT_CREATE;
 extern struct req_format RQF_LDLM_INTENT_UNLINK;
 extern struct req_format RQF_LDLM_INTENT_GETXATTR;
-extern struct req_format RQF_LDLM_INTENT_QUOTA;
 extern struct req_format RQF_LDLM_CANCEL;
 extern struct req_format RQF_LDLM_CALLBACK;
 extern struct req_format RQF_LDLM_CP_CALLBACK;
@@ -252,7 +248,6 @@ extern struct req_msg_field RMF_SETINFO_KEY;
 extern struct req_msg_field RMF_GETINFO_VAL;
 extern struct req_msg_field RMF_GETINFO_VALLEN;
 extern struct req_msg_field RMF_GETINFO_KEY;
-extern struct req_msg_field RMF_IDX_INFO;
 extern struct req_msg_field RMF_CLOSE_DATA;
 
 /*
@@ -277,7 +272,6 @@ extern struct req_msg_field RMF_CAPA1;
 extern struct req_msg_field RMF_CAPA2;
 extern struct req_msg_field RMF_OBD_QUOTACHECK;
 extern struct req_msg_field RMF_OBD_QUOTACTL;
-extern struct req_msg_field RMF_QUOTA_BODY;
 extern struct req_msg_field RMF_STRING;
 extern struct req_msg_field RMF_SWAP_LAYOUTS;
 extern struct req_msg_field RMF_MDS_HSM_PROGRESS;
@@ -322,9 +316,6 @@ extern struct req_msg_field RMF_MGS_CONFIG_RES;
 /* generic uint32 */
 extern struct req_msg_field RMF_U32;
 
-/* OBJ update format */
-extern struct req_msg_field RMF_UPDATE;
-extern struct req_msg_field RMF_UPDATE_REPLY;
 /** @} req_layout */
 
 #endif /* _LUSTRE_REQ_LAYOUT_H__ */
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
index f00d9a2..e63366b 100644
--- a/drivers/staging/lustre/lustre/include/obd.h
+++ b/drivers/staging/lustre/lustre/include/obd.h
@@ -90,7 +90,8 @@ struct lov_stripe_md {
 	pid_t	    lsm_lock_owner; /* debugging */
 
 	/* maximum possible file size, might change as OSTs status changes,
-	 * e.g. disconnected, deactivated */
+	 * e.g. disconnected, deactivated
+	 */
 	__u64	    lsm_maxbytes;
 	struct {
 		/* Public members. */
@@ -123,7 +124,7 @@ static inline bool lsm_is_released(struct lov_stripe_md *lsm)
 
 static inline bool lsm_has_objects(struct lov_stripe_md *lsm)
 {
-	if (lsm == NULL)
+	if (!lsm)
 		return false;
 	if (lsm_is_released(lsm))
 		return false;
@@ -159,7 +160,8 @@ struct obd_info {
 	/* An update callback which is called to update some data on upper
 	 * level. E.g. it is used for update lsm->lsm_oinfo at every received
 	 * request in osc level for enqueue requests. It is also possible to
-	 * update some caller data from LOV layer if needed. */
+	 * update some caller data from LOV layer if needed.
+	 */
 	obd_enqueue_update_f    oi_cb_up;
 };
 
@@ -216,7 +218,6 @@ struct timeout_item {
 };
 
 #define OSC_MAX_RIF_DEFAULT       8
-#define MDS_OSC_MAX_RIF_DEFAULT   50
 #define OSC_MAX_RIF_MAX	 256
 #define OSC_MAX_DIRTY_DEFAULT  (OSC_MAX_RIF_DEFAULT * 4)
 #define OSC_MAX_DIRTY_MB_MAX   2048     /* arbitrary, but < MAX_LONG bytes */
@@ -241,7 +242,8 @@ struct client_obd {
 	struct obd_import       *cl_import; /* ptlrpc connection state */
 	int		      cl_conn_count;
 	/* max_mds_easize is purely a performance thing so we don't have to
-	 * call obd_size_diskmd() all the time. */
+	 * call obd_size_diskmd() all the time.
+	 */
 	int			 cl_default_mds_easize;
 	int			 cl_max_mds_easize;
 	int			 cl_default_mds_cookiesize;
@@ -261,7 +263,8 @@ struct client_obd {
 	/* since we allocate grant by blocks, we don't know how many grant will
 	 * be used to add a page into cache. As a solution, we reserve maximum
 	 * grant before trying to dirty a page and unreserve the rest.
-	 * See osc_{reserve|unreserve}_grant for details. */
+	 * See osc_{reserve|unreserve}_grant for details.
+	 */
 	long		 cl_reserved_grant;
 	struct list_head cl_cache_waiters; /* waiting for cache/grant */
 	unsigned long	 cl_next_shrink_grant;   /* jiffies */
@@ -269,14 +272,16 @@ struct client_obd {
 	int		 cl_grant_shrink_interval; /* seconds */
 
 	/* A chunk is an optimal size used by osc_extent to determine
-	 * the extent size. A chunk is max(PAGE_CACHE_SIZE, OST block size) */
+	 * the extent size. A chunk is max(PAGE_CACHE_SIZE, OST block size)
+	 */
 	int		  cl_chunkbits;
 	int		  cl_chunk;
 	int		  cl_extent_tax; /* extent overhead, by bytes */
 
 	/* keep track of objects that have lois that contain pages which
 	 * have been queued for async brw.  this lock also protects the
-	 * lists of osc_client_pages that hang off of the loi */
+	 * lists of osc_client_pages that hang off of the loi
+	 */
 	/*
 	 * ->cl_loi_list_lock protects consistency of
 	 * ->cl_loi_{ready,read,write}_list. ->ap_make_ready() and
@@ -295,14 +300,14 @@ struct client_obd {
 	 * NB by Jinshan: though field names are still _loi_, but actually
 	 * osc_object{}s are in the list.
 	 */
-	client_obd_lock_t	cl_loi_list_lock;
+	struct client_obd_lock	       cl_loi_list_lock;
 	struct list_head	       cl_loi_ready_list;
 	struct list_head	       cl_loi_hp_ready_list;
 	struct list_head	       cl_loi_write_list;
 	struct list_head	       cl_loi_read_list;
 	int		      cl_r_in_flight;
 	int		      cl_w_in_flight;
-	/* just a sum of the loi/lop pending numbers to be exported by /proc */
+	/* just a sum of the loi/lop pending numbers to be exported by sysfs */
 	atomic_t	     cl_pending_w_pages;
 	atomic_t	     cl_pending_r_pages;
 	__u32			 cl_max_pages_per_rpc;
@@ -322,7 +327,7 @@ struct client_obd {
 	atomic_t		 cl_lru_shrinkers;
 	atomic_t		 cl_lru_in_list;
 	struct list_head	 cl_lru_list; /* lru page list */
-	client_obd_lock_t	 cl_lru_list_lock; /* page list protector */
+	struct client_obd_lock   cl_lru_list_lock; /* page list protector */
 
 	/* number of in flight destroy rpcs is limited to max_rpcs_in_flight */
 	atomic_t	     cl_destroy_in_flight;
@@ -340,7 +345,7 @@ struct client_obd {
 	/* supported checksum types that are worked out at connect time */
 	__u32		    cl_supp_cksum_types;
 	/* checksum algorithm to be used */
-	cksum_type_t	     cl_cksum_type;
+	enum cksum_type	     cl_cksum_type;
 
 	/* also protected by the poorly named _loi_list_lock lock above */
 	struct osc_async_rc      cl_ar;
@@ -380,8 +385,7 @@ struct echo_client_obd {
 
 /* Generic subset of OSTs */
 struct ost_pool {
-	__u32	      *op_array;      /* array of index of
-						   lov_obd->lov_tgts */
+	__u32	      *op_array;      /* array of index of lov_obd->lov_tgts */
 	unsigned int	op_count;      /* number of OSTs in the array */
 	unsigned int	op_size;       /* allocated size of lp_array */
 	struct rw_semaphore op_rw_sem;     /* to protect ost_pool use */
@@ -414,14 +418,16 @@ struct lov_qos {
 	struct lov_qos_rr   lq_rr;	  /* round robin qos data */
 	unsigned long       lq_dirty:1,     /* recalc qos data */
 			    lq_same_space:1,/* the ost's all have approx.
-					       the same space avail */
+					     * the same space avail
+					     */
 			    lq_reset:1,     /* zero current penalties */
 			    lq_statfs_in_progress:1; /* statfs op in
 							progress */
 	/* qos statfs data */
 	struct lov_statfs_data *lq_statfs_data;
-	wait_queue_head_t	 lq_statfs_waitq; /* waitqueue to notify statfs
-					      * requests completion */
+	wait_queue_head_t lq_statfs_waitq; /* waitqueue to notify statfs
+					    * requests completion
+					    */
 };
 
 struct lov_tgt_desc {
@@ -449,16 +455,16 @@ struct pool_desc {
 	struct lov_qos_rr     pool_rr;		/* round robin qos */
 	struct hlist_node      pool_hash;	      /* access by poolname */
 	struct list_head	    pool_list;	      /* serial access */
-	struct dentry		*pool_debugfs_entry;	/* file in /proc */
+	struct dentry		*pool_debugfs_entry;	/* file in debugfs */
 	struct obd_device    *pool_lobd;	/* obd of the lov/lod to which
-						*  this pool belongs */
+						 * this pool belongs
+						 */
 };
 
 struct lov_obd {
 	struct lov_desc	 desc;
 	struct lov_tgt_desc   **lov_tgts;	      /* sparse array */
-	struct ost_pool	 lov_packed;	    /* all OSTs in a packed
-							  array */
+	struct ost_pool	 lov_packed;	    /* all OSTs in a packed array */
 	struct mutex		lov_lock;
 	struct obd_connect_data lov_ocd;
 	atomic_t	    lov_refcount;
@@ -595,34 +601,6 @@ struct obd_trans_info {
 	struct obd_uuid	 *oti_ost_uuid;
 };
 
-static inline void oti_init(struct obd_trans_info *oti,
-			    struct ptlrpc_request *req)
-{
-	if (oti == NULL)
-		return;
-	memset(oti, 0, sizeof(*oti));
-
-	if (req == NULL)
-		return;
-
-	oti->oti_xid = req->rq_xid;
-	/** VBR: take versions from request */
-	if (req->rq_reqmsg != NULL &&
-	    lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
-		__u64 *pre_version = lustre_msg_get_versions(req->rq_reqmsg);
-
-		oti->oti_pre_version = pre_version ? pre_version[0] : 0;
-		oti->oti_transno = lustre_msg_get_transno(req->rq_reqmsg);
-	}
-
-	/** called from mds_create_objects */
-	if (req->rq_repmsg != NULL)
-		oti->oti_transno = lustre_msg_get_transno(req->rq_repmsg);
-	oti->oti_thread = req->rq_svc_thread;
-	if (req->rq_reqmsg != NULL)
-		oti->oti_conn_cnt = lustre_msg_get_conn_cnt(req->rq_reqmsg);
-}
-
 static inline void oti_alloc_cookies(struct obd_trans_info *oti,
 				     int num_cookies)
 {
@@ -727,21 +705,23 @@ struct obd_device {
 	unsigned long obd_attached:1,      /* finished attach */
 		      obd_set_up:1,	/* finished setup */
 		      obd_version_recov:1, /* obd uses version checking */
-		      obd_replayable:1,    /* recovery is enabled; inform clients */
-		      obd_no_transno:1,    /* no committed-transno notification */
+		      obd_replayable:1,/* recovery is enabled; inform clients */
+		      obd_no_transno:1,  /* no committed-transno notification */
 		      obd_no_recov:1,      /* fail instead of retry messages */
 		      obd_stopping:1,      /* started cleanup */
 		      obd_starting:1,      /* started setup */
 		      obd_force:1,	 /* cleanup with > 0 obd refcount */
-		      obd_fail:1,	  /* cleanup with failover */
-		      obd_async_recov:1,   /* allow asynchronous orphan cleanup */
+		      obd_fail:1,	 /* cleanup with failover */
+		      obd_async_recov:1, /* allow asynchronous orphan cleanup */
 		      obd_no_conn:1,       /* deny new connections */
 		      obd_inactive:1,      /* device active/inactive
-					   * (for /proc/status only!!) */
+					    * (for sysfs status only!!)
+					    */
 		      obd_no_ir:1,	 /* no imperative recovery. */
 		      obd_process_conf:1;  /* device is processing mgs config */
 	/* use separate field as it is set in interrupt to don't mess with
-	 * protection of other bits using _bh lock */
+	 * protection of other bits using _bh lock
+	 */
 	unsigned long obd_recovery_expired:1;
 	/* uuid-export hash body */
 	struct cfs_hash	     *obd_uuid_hash;
@@ -934,7 +914,8 @@ struct md_op_data {
 	__u32		   op_npages;
 
 	/* used to transfer info between the stacks of MD client
-	 * see enum op_cli_flags */
+	 * see enum op_cli_flags
+	 */
 	__u32			op_cli_flags;
 
 	/* File object data version for HSM release, on client */
@@ -986,7 +967,8 @@ struct obd_ops {
 	/* connect to the target device with given connection
 	 * data. @ocd->ocd_connect_flags is modified to reflect flags actually
 	 * granted by the target, which are guaranteed to be a subset of flags
-	 * asked for. If @ocd == NULL, use default parameters. */
+	 * asked for. If @ocd == NULL, use default parameters.
+	 */
 	int (*connect)(const struct lu_env *env,
 		       struct obd_export **exp, struct obd_device *src,
 		       struct obd_uuid *cluuid, struct obd_connect_data *ocd,
@@ -1082,7 +1064,8 @@ struct obd_ops {
 	/*
 	 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
 	 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
-	 * Also, add a wrapper function in include/linux/obd_class.h. */
+	 * Also, add a wrapper function in include/linux/obd_class.h.
+	 */
 };
 
 enum {
@@ -1188,14 +1171,14 @@ struct md_ops {
 				      struct obd_client_handle *);
 	int (*set_lock_data)(struct obd_export *, __u64 *, void *, __u64 *);
 
-	ldlm_mode_t (*lock_match)(struct obd_export *, __u64,
-				  const struct lu_fid *, ldlm_type_t,
-				  ldlm_policy_data_t *, ldlm_mode_t,
-				  struct lustre_handle *);
+	enum ldlm_mode (*lock_match)(struct obd_export *, __u64,
+				     const struct lu_fid *, enum ldlm_type,
+				     ldlm_policy_data_t *, enum ldlm_mode,
+				     struct lustre_handle *);
 
 	int (*cancel_unused)(struct obd_export *, const struct lu_fid *,
-			     ldlm_policy_data_t *, ldlm_mode_t,
-			     ldlm_cancel_flags_t flags, void *opaque);
+			     ldlm_policy_data_t *, enum ldlm_mode,
+			     enum ldlm_cancel_flags flags, void *opaque);
 
 	int (*get_remote_perm)(struct obd_export *, const struct lu_fid *,
 			       __u32, struct ptlrpc_request **);
@@ -1252,7 +1235,7 @@ static inline struct md_open_data *obd_mod_alloc(void)
 	struct md_open_data *mod;
 
 	mod = kzalloc(sizeof(*mod), GFP_NOFS);
-	if (mod == NULL)
+	if (!mod)
 		return NULL;
 	atomic_set(&mod->mod_refcount, 1);
 	return mod;
@@ -1299,7 +1282,7 @@ static inline bool filename_is_volatile(const char *name, int namelen, int *idx)
 		return false;
 
 	/* caller does not care of idx */
-	if (idx == NULL)
+	if (!idx)
 		return true;
 
 	/* volatile file, the MDT can be set from name */
@@ -1326,7 +1309,8 @@ static inline bool filename_is_volatile(const char *name, int namelen, int *idx)
 	return true;
 bad_format:
 	/* bad format of mdt idx, we cannot return an error
-	 * to caller so we use hash algo */
+	 * to caller so we use hash algo
+	 */
 	CERROR("Bad volatile file name format: %s\n",
 	       name + LUSTRE_VOLATILE_HDR_LEN);
 	return false;
@@ -1334,7 +1318,6 @@ bad_format:
 
 static inline int cli_brw_size(struct obd_device *obd)
 {
-	LASSERT(obd != NULL);
 	return obd->u.cli.cl_max_pages_per_rpc << PAGE_CACHE_SHIFT;
 }
 
diff --git a/drivers/staging/lustre/lustre/include/obd_cksum.h b/drivers/staging/lustre/lustre/include/obd_cksum.h
index 01db604..637fa22 100644
--- a/drivers/staging/lustre/lustre/include/obd_cksum.h
+++ b/drivers/staging/lustre/lustre/include/obd_cksum.h
@@ -37,7 +37,7 @@
 #include "../../include/linux/libcfs/libcfs.h"
 #include "lustre/lustre_idl.h"
 
-static inline unsigned char cksum_obd2cfs(cksum_type_t cksum_type)
+static inline unsigned char cksum_obd2cfs(enum cksum_type cksum_type)
 {
 	switch (cksum_type) {
 	case OBD_CKSUM_CRC32:
@@ -63,8 +63,9 @@ static inline unsigned char cksum_obd2cfs(cksum_type_t cksum_type)
  * In case of an unsupported types/flags we fall back to ADLER
  * because that is supported by all clients since 1.8
  *
- * In case multiple algorithms are supported the best one is used. */
-static inline u32 cksum_type_pack(cksum_type_t cksum_type)
+ * In case multiple algorithms are supported the best one is used.
+ */
+static inline u32 cksum_type_pack(enum cksum_type cksum_type)
 {
 	unsigned int    performance = 0, tmp;
 	u32		flag = OBD_FL_CKSUM_ADLER;
@@ -98,7 +99,7 @@ static inline u32 cksum_type_pack(cksum_type_t cksum_type)
 	return flag;
 }
 
-static inline cksum_type_t cksum_type_unpack(u32 o_flags)
+static inline enum cksum_type cksum_type_unpack(u32 o_flags)
 {
 	switch (o_flags & OBD_FL_CKSUM_ALL) {
 	case OBD_FL_CKSUM_CRC32C:
@@ -116,9 +117,9 @@ static inline cksum_type_t cksum_type_unpack(u32 o_flags)
  * 1.8 supported ADLER it is base and not depend on hw
  * Client uses all available local algos
  */
-static inline cksum_type_t cksum_types_supported_client(void)
+static inline enum cksum_type cksum_types_supported_client(void)
 {
-	cksum_type_t ret = OBD_CKSUM_ADLER;
+	enum cksum_type ret = OBD_CKSUM_ADLER;
 
 	CDEBUG(D_INFO, "Crypto hash speed: crc %d, crc32c %d, adler %d\n",
 	       cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32)),
@@ -139,14 +140,16 @@ static inline cksum_type_t cksum_types_supported_client(void)
  * Currently, calling cksum_type_pack() with a mask will return the fastest
  * checksum type due to its benchmarking at libcfs module load.
  * Caution is advised, however, since what is fastest on a single client may
- * not be the fastest or most efficient algorithm on the server.  */
-static inline cksum_type_t cksum_type_select(cksum_type_t cksum_types)
+ * not be the fastest or most efficient algorithm on the server.
+ */
+static inline enum cksum_type cksum_type_select(enum cksum_type cksum_types)
 {
 	return cksum_type_unpack(cksum_type_pack(cksum_types));
 }
 
 /* Checksum algorithm names. Must be defined in the same order as the
- * OBD_CKSUM_* flags. */
+ * OBD_CKSUM_* flags.
+ */
 #define DECLARE_CKSUM_NAME char *cksum_name[] = {"crc32", "adler", "crc32c"}
 
 #endif /* __OBD_H */
diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h
index 4f631e6..8515218 100644
--- a/drivers/staging/lustre/lustre/include/obd_class.h
+++ b/drivers/staging/lustre/lustre/include/obd_class.h
@@ -45,18 +45,22 @@
 #include "lprocfs_status.h"
 
 #define OBD_STATFS_NODELAY      0x0001  /* requests should be send without delay
-					 * and resends for avoid deadlocks */
+					 * and resends for avoid deadlocks
+					 */
 #define OBD_STATFS_FROM_CACHE   0x0002  /* the statfs callback should not update
-					 * obd_osfs_age */
+					 * obd_osfs_age
+					 */
 #define OBD_STATFS_PTLRPCD      0x0004  /* requests will be sent via ptlrpcd
 					 * instead of a specific set. This
 					 * means that we cannot rely on the set
 					 * interpret routine to be called.
 					 * lov_statfs_fini() must thus be called
-					 * by the request interpret routine */
+					 * by the request interpret routine
+					 */
 #define OBD_STATFS_FOR_MDT0	0x0008	/* The statfs is only for retrieving
-					 * information from MDT0. */
-#define OBD_FL_PUNCH    0x00000001      /* To indicate it is punch operation */
+					 * information from MDT0.
+					 */
+#define OBD_FL_PUNCH	    0x00000001  /* To indicate it is punch operation */
 
 /* OBD Device Declarations */
 extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
@@ -160,8 +164,9 @@ struct config_llog_data {
 	struct mutex		    cld_lock;
 	int			 cld_type;
 	unsigned int		cld_stopping:1, /* we were told to stop
-						     * watching */
-				    cld_lostlock:1; /* lock not requeued */
+						 * watching
+						 */
+				cld_lostlock:1; /* lock not requeued */
 	char			cld_logname[0];
 };
 
@@ -275,7 +280,8 @@ void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, u32 valid);
 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
 
 /* Ensure obd_setup: used for cleanup which must be called
-   while obd is stopping */
+ * while obd is stopping
+ */
 static inline int obd_check_dev(struct obd_device *obd)
 {
 	if (!obd) {
@@ -306,7 +312,7 @@ static inline int obd_check_dev_active(struct obd_device *obd)
 	 / sizeof(((struct obd_ops *)(0))->iocontrol))
 
 #define OBD_COUNTER_INCREMENT(obdx, op)			   \
-	if ((obdx)->obd_stats != NULL) {			  \
+	if ((obdx)->obd_stats) {				  \
 		unsigned int coffset;			     \
 		coffset = (unsigned int)((obdx)->obd_cntr_base) + \
 			OBD_COUNTER_OFFSET(op);		   \
@@ -315,7 +321,7 @@ static inline int obd_check_dev_active(struct obd_device *obd)
 	}
 
 #define EXP_COUNTER_INCREMENT(export, op)				    \
-	if ((export)->exp_obd->obd_stats != NULL) {			  \
+	if ((export)->exp_obd->obd_stats) {			  \
 		unsigned int coffset;					\
 		coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \
 			OBD_COUNTER_OFFSET(op);			      \
@@ -329,7 +335,7 @@ static inline int obd_check_dev_active(struct obd_device *obd)
 	 / sizeof(((struct md_ops *)(0))->getstatus))
 
 #define MD_COUNTER_INCREMENT(obdx, op)			   \
-	if ((obd)->md_stats != NULL) {			   \
+	if ((obd)->md_stats) {			   \
 		unsigned int coffset;			    \
 		coffset = (unsigned int)((obdx)->md_cntr_base) + \
 			MD_COUNTER_OFFSET(op);		   \
@@ -338,24 +344,24 @@ static inline int obd_check_dev_active(struct obd_device *obd)
 	}
 
 #define EXP_MD_COUNTER_INCREMENT(export, op)				 \
-	if ((export)->exp_obd->obd_stats != NULL) {			  \
+	if ((export)->exp_obd->obd_stats) {				  \
 		unsigned int coffset;					\
 		coffset = (unsigned int)((export)->exp_obd->md_cntr_base) +  \
 			MD_COUNTER_OFFSET(op);			       \
 		LASSERT(coffset < (export)->exp_obd->md_stats->ls_num);      \
 		lprocfs_counter_incr((export)->exp_obd->md_stats, coffset);  \
-		if ((export)->exp_md_stats != NULL)			  \
+		if ((export)->exp_md_stats)				  \
 			lprocfs_counter_incr(				\
 				(export)->exp_md_stats, coffset);	    \
 	}
 
 #define EXP_CHECK_MD_OP(exp, op)				\
 do {							    \
-	if ((exp) == NULL) {				    \
+	if (!(exp)) {				    \
 		CERROR("obd_" #op ": NULL export\n");	   \
 		return -ENODEV;				\
 	}						       \
-	if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) {   \
+	if (!(exp)->exp_obd || !OBT((exp)->exp_obd)) {   \
 		CERROR("obd_" #op ": cleaned up obd\n");	\
 		return -EOPNOTSUPP;			    \
 	}						       \
@@ -379,11 +385,11 @@ do {							    \
 
 #define EXP_CHECK_DT_OP(exp, op)				\
 do {							    \
-	if ((exp) == NULL) {				    \
+	if (!(exp)) {				    \
 		CERROR("obd_" #op ": NULL export\n");	   \
 		return -ENODEV;				\
 	}						       \
-	if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) {   \
+	if (!(exp)->exp_obd || !OBT((exp)->exp_obd)) {   \
 		CERROR("obd_" #op ": cleaned up obd\n");	\
 		return -EOPNOTSUPP;			    \
 	}						       \
@@ -467,7 +473,7 @@ static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
 	DECLARE_LU_VARS(ldt, d);
 
 	ldt = obd->obd_type->typ_lu;
-	if (ldt != NULL) {
+	if (ldt) {
 		struct lu_context  session_ctx;
 		struct lu_env env;
 
@@ -509,7 +515,7 @@ static inline int obd_precleanup(struct obd_device *obd,
 		return rc;
 	ldt = obd->obd_type->typ_lu;
 	d = obd->obd_lu_dev;
-	if (ldt != NULL && d != NULL) {
+	if (ldt && d) {
 		if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
 			struct lu_env env;
 
@@ -538,7 +544,7 @@ static inline int obd_cleanup(struct obd_device *obd)
 
 	ldt = obd->obd_type->typ_lu;
 	d = obd->obd_lu_dev;
-	if (ldt != NULL && d != NULL) {
+	if (ldt && d) {
 		struct lu_env env;
 
 		rc = lu_env_init(&env, ldt->ldt_ctx_tags);
@@ -558,7 +564,8 @@ static inline int obd_cleanup(struct obd_device *obd)
 static inline void obd_cleanup_client_import(struct obd_device *obd)
 {
 	/* If we set up but never connected, the
-	   client import will not have been cleaned. */
+	 * client import will not have been cleaned.
+	 */
 	down_write(&obd->u.cli.cl_sem);
 	if (obd->u.cli.cl_import) {
 		struct obd_import *imp;
@@ -586,7 +593,7 @@ obd_process_config(struct obd_device *obd, int datalen, void *data)
 	obd->obd_process_conf = 1;
 	ldt = obd->obd_type->typ_lu;
 	d = obd->obd_lu_dev;
-	if (ldt != NULL && d != NULL) {
+	if (ldt && d) {
 		struct lu_env env;
 
 		rc = lu_env_init(&env, ldt->ldt_ctx_tags);
@@ -674,7 +681,7 @@ static inline int obd_alloc_memmd(struct obd_export *exp,
 				  struct lov_stripe_md **mem_tgt)
 {
 	LASSERT(mem_tgt);
-	LASSERT(*mem_tgt == NULL);
+	LASSERT(!*mem_tgt);
 	return obd_unpackmd(exp, mem_tgt, NULL, 0);
 }
 
@@ -767,7 +774,7 @@ static inline int obd_setattr_rqset(struct obd_export *exp,
 	EXP_COUNTER_INCREMENT(exp, setattr_async);
 
 	set =  ptlrpc_prep_set();
-	if (set == NULL)
+	if (!set)
 		return -ENOMEM;
 
 	rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
@@ -778,7 +785,8 @@ static inline int obd_setattr_rqset(struct obd_export *exp,
 }
 
 /* This adds all the requests into @set if @set != NULL, otherwise
-   all requests are sent asynchronously without waiting for response. */
+ * all requests are sent asynchronously without waiting for response.
+ */
 static inline int obd_setattr_async(struct obd_export *exp,
 				    struct obd_info *oinfo,
 				    struct obd_trans_info *oti,
@@ -848,7 +856,8 @@ static inline int obd_connect(const struct lu_env *env,
 {
 	int rc;
 	__u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
-						   * check */
+							 * check
+							 */
 
 	rc = obd_check_dev_active(obd);
 	if (rc)
@@ -858,7 +867,7 @@ static inline int obd_connect(const struct lu_env *env,
 
 	rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
 	/* check that only subset is granted */
-	LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
+	LASSERT(ergo(data, (data->ocd_connect_flags & ocf) ==
 				    data->ocd_connect_flags));
 	return rc;
 }
@@ -871,8 +880,7 @@ static inline int obd_reconnect(const struct lu_env *env,
 				void *localdata)
 {
 	int rc;
-	__u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
-						   * check */
+	__u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition check */
 
 	rc = obd_check_dev_active(obd);
 	if (rc)
@@ -882,8 +890,7 @@ static inline int obd_reconnect(const struct lu_env *env,
 
 	rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
 	/* check that only subset is granted */
-	LASSERT(ergo(d != NULL,
-		     (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
+	LASSERT(ergo(d, (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
 	return rc;
 }
 
@@ -998,7 +1005,7 @@ static inline int obd_init_export(struct obd_export *exp)
 {
 	int rc = 0;
 
-	if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
+	if ((exp)->exp_obd && OBT((exp)->exp_obd) &&
 	    OBP((exp)->exp_obd, init_export))
 		rc = OBP(exp->exp_obd, init_export)(exp);
 	return rc;
@@ -1006,7 +1013,7 @@ static inline int obd_init_export(struct obd_export *exp)
 
 static inline int obd_destroy_export(struct obd_export *exp)
 {
-	if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
+	if ((exp)->exp_obd && OBT((exp)->exp_obd) &&
 	    OBP((exp)->exp_obd, destroy_export))
 		OBP(exp->exp_obd, destroy_export)(exp);
 	return 0;
@@ -1014,7 +1021,8 @@ static inline int obd_destroy_export(struct obd_export *exp)
 
 /* @max_age is the oldest time in jiffies that we accept using a cached data.
  * If the cache is older than @max_age we will get a new value from the
- * target.  Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
+ * target.  Use a value of "cfs_time_current() + HZ" to guarantee freshness.
+ */
 static inline int obd_statfs_async(struct obd_export *exp,
 				   struct obd_info *oinfo,
 				   __u64 max_age,
@@ -1023,7 +1031,7 @@ static inline int obd_statfs_async(struct obd_export *exp,
 	int rc = 0;
 	struct obd_device *obd;
 
-	if (exp == NULL || exp->exp_obd == NULL)
+	if (!exp || !exp->exp_obd)
 		return -EINVAL;
 
 	obd = exp->exp_obd;
@@ -1059,7 +1067,7 @@ static inline int obd_statfs_rqset(struct obd_export *exp,
 	int rc = 0;
 
 	set =  ptlrpc_prep_set();
-	if (set == NULL)
+	if (!set)
 		return -ENOMEM;
 
 	oinfo.oi_osfs = osfs;
@@ -1073,7 +1081,8 @@ static inline int obd_statfs_rqset(struct obd_export *exp,
 
 /* @max_age is the oldest time in jiffies that we accept using a cached data.
  * If the cache is older than @max_age we will get a new value from the
- * target.  Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
+ * target.  Use a value of "cfs_time_current() + HZ" to guarantee freshness.
+ */
 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
 			     struct obd_statfs *osfs, __u64 max_age,
 			     __u32 flags)
@@ -1081,7 +1090,7 @@ static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
 	int rc = 0;
 	struct obd_device *obd = exp->exp_obd;
 
-	if (obd == NULL)
+	if (!obd)
 		return -EINVAL;
 
 	OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
@@ -1205,9 +1214,10 @@ static inline int obd_notify(struct obd_device *obd,
 		return rc;
 
 	/* the check for async_recov is a complete hack - I'm hereby
-	   overloading the meaning to also mean "this was called from
-	   mds_postsetup".  I know that my mds is able to handle notifies
-	   by this point, and it needs to get them to execute mds_postrecov. */
+	 * overloading the meaning to also mean "this was called from
+	 * mds_postsetup".  I know that my mds is able to handle notifies
+	 * by this point, and it needs to get them to execute mds_postrecov.
+	 */
 	if (!obd->obd_set_up && !obd->obd_async_recov) {
 		CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
 		return -EINVAL;
@@ -1241,7 +1251,7 @@ static inline int obd_notify_observer(struct obd_device *observer,
 	 * Also, call non-obd listener, if any
 	 */
 	onu = &observer->obd_upcall;
-	if (onu->onu_upcall != NULL)
+	if (onu->onu_upcall)
 		rc2 = onu->onu_upcall(observer, observed, ev,
 				      onu->onu_owner, NULL);
 	else
@@ -1287,7 +1297,7 @@ static inline int obd_health_check(const struct lu_env *env,
 	int rc;
 
 	/* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
-	if (obd == NULL || !OBT(obd)) {
+	if (!obd || !OBT(obd)) {
 		CERROR("cleaned up obd\n");
 		return -EOPNOTSUPP;
 	}
@@ -1318,57 +1328,6 @@ static inline int obd_register_observer(struct obd_device *obd,
 	return 0;
 }
 
-#if 0
-static inline int obd_register_page_removal_cb(struct obd_export *exp,
-					       obd_page_removal_cb_t cb,
-					       obd_pin_extent_cb pin_cb)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
-	OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
-
-	rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
-	return rc;
-}
-
-static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
-						 obd_page_removal_cb_t cb)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
-	OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
-
-	rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
-	return rc;
-}
-
-static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
-					      obd_lock_cancel_cb cb)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
-	OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
-
-	rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
-	return rc;
-}
-
-static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
-						 obd_lock_cancel_cb cb)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
-	OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
-
-	rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
-	return rc;
-}
-#endif
-
 /* metadata helpers */
 static inline int md_getstatus(struct obd_export *exp, struct lu_fid *fid)
 {
@@ -1657,8 +1616,8 @@ static inline int md_set_lock_data(struct obd_export *exp,
 static inline int md_cancel_unused(struct obd_export *exp,
 				   const struct lu_fid *fid,
 				   ldlm_policy_data_t *policy,
-				   ldlm_mode_t mode,
-				   ldlm_cancel_flags_t flags,
+				   enum ldlm_mode mode,
+				   enum ldlm_cancel_flags flags,
 				   void *opaque)
 {
 	int rc;
@@ -1671,12 +1630,12 @@ static inline int md_cancel_unused(struct obd_export *exp,
 	return rc;
 }
 
-static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
-					const struct lu_fid *fid,
-					ldlm_type_t type,
-					ldlm_policy_data_t *policy,
-					ldlm_mode_t mode,
-					struct lustre_handle *lockh)
+static inline enum ldlm_mode md_lock_match(struct obd_export *exp, __u64 flags,
+					   const struct lu_fid *fid,
+					   enum ldlm_type type,
+					   ldlm_policy_data_t *policy,
+					   enum ldlm_mode mode,
+					   struct lustre_handle *lockh)
 {
 	EXP_CHECK_MD_OP(exp, lock_match);
 	EXP_MD_COUNTER_INCREMENT(exp, lock_match);
@@ -1759,7 +1718,8 @@ struct lwp_register_item {
 /* I'm as embarrassed about this as you are.
  *
  * <shaver> // XXX do not look into _superhack with remaining eye
- * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
+ * <shaver> // XXX if this were any uglier, I'd get my own show on MTV
+ */
 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
 
 /* obd_mount.c */
diff --git a/drivers/staging/lustre/lustre/include/obd_support.h b/drivers/staging/lustre/lustre/include/obd_support.h
index d031437..225262fa 100644
--- a/drivers/staging/lustre/lustre/include/obd_support.h
+++ b/drivers/staging/lustre/lustre/include/obd_support.h
@@ -47,7 +47,8 @@ extern unsigned int obd_debug_peer_on_timeout;
 extern unsigned int obd_dump_on_timeout;
 extern unsigned int obd_dump_on_eviction;
 /* obd_timeout should only be used for recovery, not for
-   networking / disk / timings affected by load (use Adaptive Timeouts) */
+ * networking / disk / timings affected by load (use Adaptive Timeouts)
+ */
 extern unsigned int obd_timeout;	  /* seconds */
 extern unsigned int obd_timeout_set;
 extern unsigned int at_min;
@@ -104,18 +105,21 @@ extern char obd_jobid_var[];
  * failover targets the client only pings one server at a time, and pings
  * can be lost on a loaded network. Since eviction has serious consequences,
  * and there's no urgent need to evict a client just because it's idle, we
- * should be very conservative here. */
+ * should be very conservative here.
+ */
 #define PING_EVICT_TIMEOUT (PING_INTERVAL * 6)
 #define DISK_TIMEOUT 50	  /* Beyond this we warn about disk speed */
 #define CONNECTION_SWITCH_MIN 5U /* Connection switching rate limiter */
- /* Max connect interval for nonresponsive servers; ~50s to avoid building up
-    connect requests in the LND queues, but within obd_timeout so we don't
-    miss the recovery window */
+/* Max connect interval for nonresponsive servers; ~50s to avoid building up
+ * connect requests in the LND queues, but within obd_timeout so we don't
+ * miss the recovery window
+ */
 #define CONNECTION_SWITCH_MAX min(50U, max(CONNECTION_SWITCH_MIN, obd_timeout))
 #define CONNECTION_SWITCH_INC 5  /* Connection timeout backoff */
 /* In general this should be low to have quick detection of a system
-   running on a backup server. (If it's too low, import_select_connection
-   will increase the timeout anyhow.)  */
+ * running on a backup server. (If it's too low, import_select_connection
+ * will increase the timeout anyhow.)
+ */
 #define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN, obd_timeout/20)
 /* The max delay between connects is SWITCH_MAX + SWITCH_INC + INITIAL */
 #define RECONNECT_DELAY_MAX (CONNECTION_SWITCH_MAX + CONNECTION_SWITCH_INC + \
@@ -507,7 +511,6 @@ extern char obd_jobid_var[];
 do {									      \
 	struct portals_handle *__h = (handle);				      \
 									      \
-	LASSERT(handle != NULL);					      \
 	__h->h_cookie = (unsigned long)(ptr);				      \
 	__h->h_size = (size);						      \
 	call_rcu(&__h->h_rcu, class_handle_free_cb);			      \
diff --git a/drivers/staging/lustre/lustre/lclient/glimpse.c b/drivers/staging/lustre/lustre/lclient/glimpse.c
index 8533a1e..c4e8a08 100644
--- a/drivers/staging/lustre/lustre/lclient/glimpse.c
+++ b/drivers/staging/lustre/lustre/lclient/glimpse.c
@@ -109,7 +109,8 @@ int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io,
 			 *       if there were no conflicting locks. If there
 			 *       were conflicting locks, enqueuing or waiting
 			 *       fails with -ENAVAIL, but valid inode
-			 *       attributes are returned anyway. */
+			 *       attributes are returned anyway.
+			 */
 			*descr = whole_file;
 			descr->cld_obj   = clob;
 			descr->cld_mode  = CLM_PHANTOM;
diff --git a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
index 4dfeb4e..30651f2 100644
--- a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
+++ b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
@@ -117,7 +117,7 @@ void *ccc_key_init(const struct lu_context *ctx, struct lu_context_key *key)
 	struct ccc_thread_info *info;
 
 	info = kmem_cache_alloc(ccc_thread_kmem, GFP_NOFS | __GFP_ZERO);
-	if (info == NULL)
+	if (!info)
 		info = ERR_PTR(-ENOMEM);
 	return info;
 }
@@ -136,7 +136,7 @@ void *ccc_session_key_init(const struct lu_context *ctx,
 	struct ccc_session *session;
 
 	session = kmem_cache_alloc(ccc_session_kmem, GFP_NOFS | __GFP_ZERO);
-	if (session == NULL)
+	if (!session)
 		session = ERR_PTR(-ENOMEM);
 	return session;
 }
@@ -173,7 +173,7 @@ int ccc_device_init(const struct lu_env *env, struct lu_device *d,
 	vdv = lu2ccc_dev(d);
 	vdv->cdv_next = lu2cl_dev(next);
 
-	LASSERT(d->ld_site != NULL && next->ld_type != NULL);
+	LASSERT(d->ld_site && next->ld_type);
 	next->ld_site = d->ld_site;
 	rc = next->ld_type->ldt_ops->ldto_device_init(
 			env, next, next->ld_type->ldt_name, NULL);
@@ -211,12 +211,12 @@ struct lu_device *ccc_device_alloc(const struct lu_env *env,
 	vdv->cdv_cl.cd_ops = clops;
 
 	site = kzalloc(sizeof(*site), GFP_NOFS);
-	if (site != NULL) {
+	if (site) {
 		rc = cl_site_init(site, &vdv->cdv_cl);
 		if (rc == 0)
 			rc = lu_site_init_finish(&site->cs_lu);
 		else {
-			LASSERT(lud->ld_site == NULL);
+			LASSERT(!lud->ld_site);
 			CERROR("Cannot init lu_site, rc %d.\n", rc);
 			kfree(site);
 		}
@@ -236,7 +236,7 @@ struct lu_device *ccc_device_free(const struct lu_env *env,
 	struct cl_site    *site = lu2cl_site(d->ld_site);
 	struct lu_device  *next = cl2lu_dev(vdv->cdv_next);
 
-	if (d->ld_site != NULL) {
+	if (d->ld_site) {
 		cl_site_fini(site);
 		kfree(site);
 	}
@@ -252,7 +252,7 @@ int ccc_req_init(const struct lu_env *env, struct cl_device *dev,
 	int result;
 
 	vrq = kmem_cache_alloc(ccc_req_kmem, GFP_NOFS | __GFP_ZERO);
-	if (vrq != NULL) {
+	if (vrq) {
 		cl_req_slice_add(req, &vrq->crq_cl, dev, &ccc_req_ops);
 		result = 0;
 	} else
@@ -304,7 +304,7 @@ out_kmem:
 
 void ccc_global_fini(struct lu_device_type *device_type)
 {
-	if (ccc_inode_fini_env != NULL) {
+	if (ccc_inode_fini_env) {
 		cl_env_put(ccc_inode_fini_env, &dummy_refcheck);
 		ccc_inode_fini_env = NULL;
 	}
@@ -328,7 +328,7 @@ struct lu_object *ccc_object_alloc(const struct lu_env *env,
 	struct lu_object  *obj;
 
 	vob = kmem_cache_alloc(ccc_object_kmem, GFP_NOFS | __GFP_ZERO);
-	if (vob != NULL) {
+	if (vob) {
 		struct cl_object_header *hdr;
 
 		obj = ccc2lu(vob);
@@ -365,7 +365,7 @@ int ccc_object_init(const struct lu_env *env, struct lu_object *obj,
 
 	under = &dev->cdv_next->cd_lu_dev;
 	below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under);
-	if (below != NULL) {
+	if (below) {
 		const struct cl_object_conf *cconf;
 
 		cconf = lu2cl_conf(conf);
@@ -397,7 +397,7 @@ int ccc_lock_init(const struct lu_env *env,
 	CLOBINVRNT(env, obj, ccc_object_invariant(obj));
 
 	clk = kmem_cache_alloc(ccc_lock_kmem, GFP_NOFS | __GFP_ZERO);
-	if (clk != NULL) {
+	if (clk) {
 		cl_lock_slice_add(lock, &clk->clk_cl, obj, lkops);
 		result = 0;
 	} else
@@ -613,7 +613,8 @@ void ccc_lock_state(const struct lu_env *env,
 		 * stale i_size when doing appending writes and effectively
 		 * cancel the result of the truncate.  Getting the
 		 * ll_inode_size_lock() after the enqueue maintains the DLM
-		 * -> ll_inode_size_lock() acquiring order. */
+		 * -> ll_inode_size_lock() acquiring order.
+		 */
 		if (lock->cll_descr.cld_start == 0 &&
 		    lock->cll_descr.cld_end == CL_PAGE_EOF)
 			cl_merge_lvb(env, inode);
@@ -660,7 +661,7 @@ void ccc_io_update_iov(const struct lu_env *env,
 {
 	size_t size = io->u.ci_rw.crw_count;
 
-	if (!cl_is_normalio(env, io) || cio->cui_iter == NULL)
+	if (!cl_is_normalio(env, io) || !cio->cui_iter)
 		return;
 
 	iov_iter_truncate(cio->cui_iter, size);
@@ -749,12 +750,13 @@ int ccc_prep_size(const struct lu_env *env, struct cl_object *obj,
 			 */
 			ccc_object_size_unlock(obj);
 			result = cl_glimpse_lock(env, io, inode, obj, 0);
-			if (result == 0 && exceed != NULL) {
+			if (result == 0 && exceed) {
 				/* If objective page index exceed end-of-file
 				 * page index, return directly. Do not expect
 				 * kernel will check such case correctly.
 				 * linux-2.6.18-128.1.1 miss to do that.
-				 * --bug 17336 */
+				 * --bug 17336
+				 */
 				loff_t size = cl_isize_read(inode);
 				loff_t cur_index = start >> PAGE_CACHE_SHIFT;
 				loff_t size_index = (size - 1) >>
@@ -884,7 +886,8 @@ again:
 
 		if (attr->ia_valid & ATTR_FILE)
 			/* populate the file descriptor for ftruncate to honor
-			 * group lock - see LU-787 */
+			 * group lock - see LU-787
+			 */
 			cio->cui_fd = cl_iattr2fd(inode, attr);
 
 		result = cl_io_loop(env, io);
@@ -896,7 +899,8 @@ again:
 		goto again;
 	/* HSM import case: file is released, cannot be restored
 	 * no need to fail except if restore registration failed
-	 * with -ENODATA */
+	 * with -ENODATA
+	 */
 	if (result == -ENODATA && io->ci_restore_needed &&
 	    io->ci_result != -ENODATA)
 		result = 0;
@@ -1022,11 +1026,12 @@ int cl_file_inode_init(struct inode *inode, struct lustre_md *md)
 	fid  = &lli->lli_fid;
 	LASSERT(fid_is_sane(fid));
 
-	if (lli->lli_clob == NULL) {
+	if (!lli->lli_clob) {
 		/* clob is slave of inode, empty lli_clob means for new inode,
 		 * there is no clob in cache with the given fid, so it is
 		 * unnecessary to perform lookup-alloc-lookup-insert, just
-		 * alloc and insert directly. */
+		 * alloc and insert directly.
+		 */
 		LASSERT(inode->i_state & I_NEW);
 		conf.coc_lu.loc_flags = LOC_F_NEW;
 		clob = cl_object_find(env, lu2cl_dev(site->ls_top_dev),
@@ -1098,7 +1103,7 @@ void cl_inode_fini(struct inode *inode)
 	int refcheck;
 	int emergency;
 
-	if (clob != NULL) {
+	if (clob) {
 		void		    *cookie;
 
 		cookie = cl_env_reenter();
@@ -1106,7 +1111,7 @@ void cl_inode_fini(struct inode *inode)
 		emergency = IS_ERR(env);
 		if (emergency) {
 			mutex_lock(&ccc_inode_fini_guard);
-			LASSERT(ccc_inode_fini_env != NULL);
+			LASSERT(ccc_inode_fini_env);
 			cl_env_implant(ccc_inode_fini_env, &refcheck);
 			env = ccc_inode_fini_env;
 		}
@@ -1151,7 +1156,8 @@ __u16 ll_dirent_type_get(struct lu_dirent *ent)
 }
 
 /**
- * build inode number from passed @fid */
+ * build inode number from passed @fid
+ */
 __u64 cl_fid_build_ino(const struct lu_fid *fid, int api32)
 {
 	if (BITS_PER_LONG == 32 || api32)
@@ -1162,7 +1168,8 @@ __u64 cl_fid_build_ino(const struct lu_fid *fid, int api32)
 
 /**
  * build inode generation from passed @fid.  If our FID overflows the 32-bit
- * inode number then return a non-zero generation to distinguish them. */
+ * inode number then return a non-zero generation to distinguish them.
+ */
 __u32 cl_fid_build_gen(const struct lu_fid *fid)
 {
 	__u32 gen;
@@ -1183,7 +1190,8 @@ __u32 cl_fid_build_gen(const struct lu_fid *fid)
  * have to wait for the refcount to become zero to destroy the older layout.
  *
  * Notice that the lsm returned by this function may not be valid unless called
- * inside layout lock - MDS_INODELOCK_LAYOUT. */
+ * inside layout lock - MDS_INODELOCK_LAYOUT.
+ */
 struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode)
 {
 	return lov_lsm_get(cl_i2info(inode)->lli_clob);
diff --git a/drivers/staging/lustre/lustre/lclient/lcommon_misc.c b/drivers/staging/lustre/lustre/lclient/lcommon_misc.c
index 8389a0e..d80bcedd 100644
--- a/drivers/staging/lustre/lustre/lclient/lcommon_misc.c
+++ b/drivers/staging/lustre/lustre/lclient/lcommon_misc.c
@@ -48,7 +48,8 @@
 /* Initialize the default and maximum LOV EA and cookie sizes.  This allows
  * us to make MDS RPCs with large enough reply buffers to hold the
  * maximum-sized (= maximum striped) EA and cookie without having to
- * calculate this (via a call into the LOV + OSCs) each time we make an RPC. */
+ * calculate this (via a call into the LOV + OSCs) each time we make an RPC.
+ */
 int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp)
 {
 	struct lov_stripe_md lsm = { .lsm_magic = LOV_MAGIC_V3 };
@@ -74,7 +75,8 @@ int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp)
 	cookiesize = stripes * sizeof(struct llog_cookie);
 
 	/* default cookiesize is 0 because from 2.4 server doesn't send
-	 * llog cookies to client. */
+	 * llog cookies to client.
+	 */
 	CDEBUG(D_HA,
 	       "updating def/max_easize: %d/%d def/max_cookiesize: 0/%d\n",
 	       def_easize, easize, cookiesize);
diff --git a/drivers/staging/lustre/lustre/ldlm/interval_tree.c b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
index a2ea8e5..3230606 100644
--- a/drivers/staging/lustre/lustre/ldlm/interval_tree.c
+++ b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
@@ -49,13 +49,11 @@ enum {
 
 static inline int node_is_left_child(struct interval_node *node)
 {
-	LASSERT(node->in_parent != NULL);
 	return node == node->in_parent->in_left;
 }
 
 static inline int node_is_right_child(struct interval_node *node)
 {
-	LASSERT(node->in_parent != NULL);
 	return node == node->in_parent->in_right;
 }
 
@@ -135,7 +133,8 @@ static void __rotate_change_maxhigh(struct interval_node *node,
 
 /* The left rotation "pivots" around the link from node to node->right, and
  * - node will be linked to node->right's left child, and
- * - node->right's left child will be linked to node's right child.  */
+ * - node->right's left child will be linked to node's right child.
+ */
 static void __rotate_left(struct interval_node *node,
 			  struct interval_node **root)
 {
@@ -164,7 +163,8 @@ static void __rotate_left(struct interval_node *node,
 
 /* The right rotation "pivots" around the link from node to node->left, and
  * - node will be linked to node->left's right child, and
- * - node->left's right child will be linked to node's left child.  */
+ * - node->left's right child will be linked to node's left child.
+ */
 static void __rotate_right(struct interval_node *node,
 			   struct interval_node **root)
 {
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
index 9c70f31..222cb62 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
@@ -62,7 +62,8 @@
  * is the "highest lock".  This function returns the new KMS value.
  * Caller must hold lr_lock already.
  *
- * NB: A lock on [x,y] protects a KMS of up to y + 1 bytes! */
+ * NB: A lock on [x,y] protects a KMS of up to y + 1 bytes!
+ */
 __u64 ldlm_extent_shift_kms(struct ldlm_lock *lock, __u64 old_kms)
 {
 	struct ldlm_resource *res = lock->l_resource;
@@ -72,7 +73,8 @@ __u64 ldlm_extent_shift_kms(struct ldlm_lock *lock, __u64 old_kms)
 
 	/* don't let another thread in ldlm_extent_shift_kms race in
 	 * just after we finish and take our lock into account in its
-	 * calculation of the kms */
+	 * calculation of the kms
+	 */
 	lock->l_flags |= LDLM_FL_KMS_IGNORE;
 
 	list_for_each(tmp, &res->lr_granted) {
@@ -85,7 +87,8 @@ __u64 ldlm_extent_shift_kms(struct ldlm_lock *lock, __u64 old_kms)
 			return old_kms;
 
 		/* This extent _has_ to be smaller than old_kms (checked above)
-		 * so kms can only ever be smaller or the same as old_kms. */
+		 * so kms can only ever be smaller or the same as old_kms.
+		 */
 		if (lck->l_policy_data.l_extent.end + 1 > kms)
 			kms = lck->l_policy_data.l_extent.end + 1;
 	}
@@ -113,7 +116,7 @@ struct ldlm_interval *ldlm_interval_alloc(struct ldlm_lock *lock)
 
 	LASSERT(lock->l_resource->lr_type == LDLM_EXTENT);
 	node = kmem_cache_alloc(ldlm_interval_slab, GFP_NOFS | __GFP_ZERO);
-	if (node == NULL)
+	if (!node)
 		return NULL;
 
 	INIT_LIST_HEAD(&node->li_group);
@@ -134,7 +137,7 @@ struct ldlm_interval *ldlm_interval_detach(struct ldlm_lock *l)
 {
 	struct ldlm_interval *n = l->l_tree_node;
 
-	if (n == NULL)
+	if (!n)
 		return NULL;
 
 	LASSERT(!list_empty(&n->li_group));
@@ -144,7 +147,7 @@ struct ldlm_interval *ldlm_interval_detach(struct ldlm_lock *l)
 	return list_empty(&n->li_group) ? n : NULL;
 }
 
-static inline int lock_mode_to_index(ldlm_mode_t mode)
+static inline int lock_mode_to_index(enum ldlm_mode mode)
 {
 	int index;
 
@@ -168,7 +171,7 @@ void ldlm_extent_add_lock(struct ldlm_resource *res,
 	LASSERT(lock->l_granted_mode == lock->l_req_mode);
 
 	node = lock->l_tree_node;
-	LASSERT(node != NULL);
+	LASSERT(node);
 	LASSERT(!interval_is_intree(&node->li_node));
 
 	idx = lock_mode_to_index(lock->l_granted_mode);
@@ -185,14 +188,14 @@ void ldlm_extent_add_lock(struct ldlm_resource *res,
 		struct ldlm_interval *tmp;
 
 		tmp = ldlm_interval_detach(lock);
-		LASSERT(tmp != NULL);
 		ldlm_interval_free(tmp);
 		ldlm_interval_attach(to_ldlm_interval(found), lock);
 	}
 	res->lr_itree[idx].lit_size++;
 
 	/* even though we use interval tree to manage the extent lock, we also
-	 * add the locks into grant list, for debug purpose, .. */
+	 * add the locks into grant list, for debug purpose, ..
+	 */
 	ldlm_resource_add_lock(res, &res->lr_granted, lock);
 }
 
@@ -211,7 +214,7 @@ void ldlm_extent_unlink_lock(struct ldlm_lock *lock)
 	LASSERT(lock->l_granted_mode == 1 << idx);
 	tree = &res->lr_itree[idx];
 
-	LASSERT(tree->lit_root != NULL); /* assure the tree is not null */
+	LASSERT(tree->lit_root); /* assure the tree is not null */
 
 	tree->lit_size--;
 	node = ldlm_interval_detach(lock);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
index 4310154..b88b786 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
@@ -92,7 +92,7 @@ ldlm_flocks_overlap(struct ldlm_lock *lock, struct ldlm_lock *new)
 }
 
 static inline void
-ldlm_flock_destroy(struct ldlm_lock *lock, ldlm_mode_t mode, __u64 flags)
+ldlm_flock_destroy(struct ldlm_lock *lock, enum ldlm_mode mode, __u64 flags)
 {
 	LDLM_DEBUG(lock, "ldlm_flock_destroy(mode: %d, flags: 0x%llx)",
 		   mode, flags);
@@ -107,7 +107,8 @@ ldlm_flock_destroy(struct ldlm_lock *lock, ldlm_mode_t mode, __u64 flags)
 		lock->l_flags |= LDLM_FL_LOCAL_ONLY | LDLM_FL_CBPENDING;
 
 		/* when reaching here, it is under lock_res_and_lock(). Thus,
-		   need call the nolock version of ldlm_lock_decref_internal*/
+		 * need call the nolock version of ldlm_lock_decref_internal
+		 */
 		ldlm_lock_decref_internal_nolock(lock, mode);
 	}
 
@@ -133,7 +134,7 @@ ldlm_flock_destroy(struct ldlm_lock *lock, ldlm_mode_t mode, __u64 flags)
  *     would be collected and ASTs sent.
  */
 static int ldlm_process_flock_lock(struct ldlm_lock *req, __u64 *flags,
-				   int first_enq, ldlm_error_t *err,
+				   int first_enq, enum ldlm_error *err,
 				   struct list_head *work_list)
 {
 	struct ldlm_resource *res = req->l_resource;
@@ -143,7 +144,7 @@ static int ldlm_process_flock_lock(struct ldlm_lock *req, __u64 *flags,
 	struct ldlm_lock *lock = NULL;
 	struct ldlm_lock *new = req;
 	struct ldlm_lock *new2 = NULL;
-	ldlm_mode_t mode = req->l_req_mode;
+	enum ldlm_mode mode = req->l_req_mode;
 	int added = (mode == LCK_NL);
 	int overlaps = 0;
 	int splitted = 0;
@@ -159,13 +160,15 @@ static int ldlm_process_flock_lock(struct ldlm_lock *req, __u64 *flags,
 	*err = ELDLM_OK;
 
 	/* No blocking ASTs are sent to the clients for
-	 * Posix file & record locks */
+	 * Posix file & record locks
+	 */
 	req->l_blocking_ast = NULL;
 
 reprocess:
 	if ((*flags == LDLM_FL_WAIT_NOREPROC) || (mode == LCK_NL)) {
 		/* This loop determines where this processes locks start
-		 * in the resource lr_granted list. */
+		 * in the resource lr_granted list.
+		 */
 		list_for_each(tmp, &res->lr_granted) {
 			lock = list_entry(tmp, struct ldlm_lock,
 					      l_res_link);
@@ -180,7 +183,8 @@ reprocess:
 		lockmode_verify(mode);
 
 		/* This loop determines if there are existing locks
-		 * that conflict with the new lock request. */
+		 * that conflict with the new lock request.
+		 */
 		list_for_each(tmp, &res->lr_granted) {
 			lock = list_entry(tmp, struct ldlm_lock,
 					      l_res_link);
@@ -238,8 +242,8 @@ reprocess:
 	}
 
 	/* Scan the locks owned by this process that overlap this request.
-	 * We may have to merge or split existing locks. */
-
+	 * We may have to merge or split existing locks.
+	 */
 	if (!ownlocks)
 		ownlocks = &res->lr_granted;
 
@@ -253,7 +257,8 @@ reprocess:
 			/* If the modes are the same then we need to process
 			 * locks that overlap OR adjoin the new lock. The extra
 			 * logic condition is necessary to deal with arithmetic
-			 * overflow and underflow. */
+			 * overflow and underflow.
+			 */
 			if ((new->l_policy_data.l_flock.start >
 			     (lock->l_policy_data.l_flock.end + 1))
 			    && (lock->l_policy_data.l_flock.end !=
@@ -327,11 +332,13 @@ reprocess:
 		 * with the request but this would complicate the reply
 		 * processing since updates to req get reflected in the
 		 * reply. The client side replays the lock request so
-		 * it must see the original lock data in the reply. */
+		 * it must see the original lock data in the reply.
+		 */
 
 		/* XXX - if ldlm_lock_new() can sleep we should
 		 * release the lr_lock, allocate the new lock,
-		 * and restart processing this lock. */
+		 * and restart processing this lock.
+		 */
 		if (!new2) {
 			unlock_res_and_lock(req);
 			new2 = ldlm_lock_create(ns, &res->lr_name, LDLM_FLOCK,
@@ -361,7 +368,7 @@ reprocess:
 		lock->l_policy_data.l_flock.start =
 			new->l_policy_data.l_flock.end + 1;
 		new2->l_conn_export = lock->l_conn_export;
-		if (lock->l_export != NULL) {
+		if (lock->l_export) {
 			new2->l_export = class_export_lock_get(lock->l_export,
 							       new2);
 			if (new2->l_export->exp_lock_hash &&
@@ -381,7 +388,7 @@ reprocess:
 	}
 
 	/* if new2 is created but never used, destroy it*/
-	if (splitted == 0 && new2 != NULL)
+	if (splitted == 0 && new2)
 		ldlm_lock_destroy_nolock(new2);
 
 	/* At this point we're granting the lock request. */
@@ -396,7 +403,8 @@ reprocess:
 	if (*flags != LDLM_FL_WAIT_NOREPROC) {
 		/* The only one possible case for client-side calls flock
 		 * policy function is ldlm_flock_completion_ast inside which
-		 * carries LDLM_FL_WAIT_NOREPROC flag. */
+		 * carries LDLM_FL_WAIT_NOREPROC flag.
+		 */
 		CERROR("Illegal parameter for client-side-only module.\n");
 		LBUG();
 	}
@@ -404,7 +412,8 @@ reprocess:
 	/* In case we're reprocessing the requested lock we can't destroy
 	 * it until after calling ldlm_add_ast_work_item() above so that laawi()
 	 * can bump the reference count on \a req. Otherwise \a req
-	 * could be freed before the completion AST can be sent.  */
+	 * could be freed before the completion AST can be sent.
+	 */
 	if (added)
 		ldlm_flock_destroy(req, mode, *flags);
 
@@ -449,7 +458,7 @@ ldlm_flock_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data)
 	struct obd_import	      *imp = NULL;
 	struct ldlm_flock_wait_data     fwd;
 	struct l_wait_info	      lwi;
-	ldlm_error_t		    err;
+	enum ldlm_error		    err;
 	int			     rc = 0;
 
 	CDEBUG(D_DLMTRACE, "flags: 0x%llx data: %p getlk: %p\n",
@@ -458,12 +467,12 @@ ldlm_flock_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data)
 	/* Import invalidation. We need to actually release the lock
 	 * references being held, so that it can go away. No point in
 	 * holding the lock even if app still believes it has it, since
-	 * server already dropped it anyway. Only for granted locks too. */
+	 * server already dropped it anyway. Only for granted locks too.
+	 */
 	if ((lock->l_flags & (LDLM_FL_FAILED|LDLM_FL_LOCAL_ONLY)) ==
 	    (LDLM_FL_FAILED|LDLM_FL_LOCAL_ONLY)) {
 		if (lock->l_req_mode == lock->l_granted_mode &&
-		    lock->l_granted_mode != LCK_NL &&
-		    data == NULL)
+		    lock->l_granted_mode != LCK_NL && !data)
 			ldlm_lock_decref_internal(lock, lock->l_req_mode);
 
 		/* Need to wake up the waiter if we were evicted */
@@ -475,7 +484,7 @@ ldlm_flock_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data)
 
 	if (!(flags & (LDLM_FL_BLOCK_WAIT | LDLM_FL_BLOCK_GRANTED |
 		       LDLM_FL_BLOCK_CONV))) {
-		if (data == NULL)
+		if (!data)
 			/* mds granted the lock in the reply */
 			goto granted;
 		/* CP AST RPC: lock get granted, wake it up */
@@ -488,10 +497,10 @@ ldlm_flock_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data)
 	obd = class_exp2obd(lock->l_conn_export);
 
 	/* if this is a local lock, there is no import */
-	if (obd != NULL)
+	if (obd)
 		imp = obd->u.cli.cl_import;
 
-	if (imp != NULL) {
+	if (imp) {
 		spin_lock(&imp->imp_lock);
 		fwd.fwd_generation = imp->imp_generation;
 		spin_unlock(&imp->imp_lock);
@@ -540,7 +549,8 @@ granted:
 	} else if (flags & LDLM_FL_TEST_LOCK) {
 		/* fcntl(F_GETLK) request */
 		/* The old mode was saved in getlk->fl_type so that if the mode
-		 * in the lock changes we can decref the appropriate refcount.*/
+		 * in the lock changes we can decref the appropriate refcount.
+		 */
 		ldlm_flock_destroy(lock, getlk->fl_type, LDLM_FL_WAIT_NOREPROC);
 		switch (lock->l_granted_mode) {
 		case LCK_PR:
@@ -559,7 +569,8 @@ granted:
 		__u64 noreproc = LDLM_FL_WAIT_NOREPROC;
 
 		/* We need to reprocess the lock to do merges or splits
-		 * with existing locks owned by this process. */
+		 * with existing locks owned by this process.
+		 */
 		ldlm_process_flock_lock(lock, &noreproc, 1, &err, NULL);
 	}
 	unlock_res_and_lock(lock);
@@ -576,7 +587,8 @@ void ldlm_flock_policy_wire18_to_local(const ldlm_wire_policy_data_t *wpolicy,
 	lpolicy->l_flock.pid = wpolicy->l_flock.lfw_pid;
 	/* Compat code, old clients had no idea about owner field and
 	 * relied solely on pid for ownership. Introduced in LU-104, 2.1,
-	 * April 2011 */
+	 * April 2011
+	 */
 	lpolicy->l_flock.owner = wpolicy->l_flock.lfw_pid;
 }
 
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
index 849cc98..e21373e 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
@@ -96,14 +96,15 @@ enum {
 	LDLM_CANCEL_SHRINK = 1 << 2, /* Cancel locks from shrinker. */
 	LDLM_CANCEL_LRUR   = 1 << 3, /* Cancel locks from lru resize. */
 	LDLM_CANCEL_NO_WAIT = 1 << 4 /* Cancel locks w/o blocking (neither
-				      * sending nor waiting for any rpcs) */
+				      * sending nor waiting for any rpcs)
+				      */
 };
 
 int ldlm_cancel_lru(struct ldlm_namespace *ns, int nr,
-		    ldlm_cancel_flags_t sync, int flags);
+		    enum ldlm_cancel_flags sync, int flags);
 int ldlm_cancel_lru_local(struct ldlm_namespace *ns,
 			 struct list_head *cancels, int count, int max,
-			 ldlm_cancel_flags_t cancel_flags, int flags);
+			 enum ldlm_cancel_flags cancel_flags, int flags);
 extern int ldlm_enqueue_min;
 
 /* ldlm_resource.c */
@@ -133,11 +134,11 @@ int ldlm_fill_lvb(struct ldlm_lock *lock, struct req_capsule *pill,
 		  enum req_location loc, void *data, int size);
 struct ldlm_lock *
 ldlm_lock_create(struct ldlm_namespace *ns, const struct ldlm_res_id *,
-		 ldlm_type_t type, ldlm_mode_t,
+		 enum ldlm_type type, enum ldlm_mode mode,
 		 const struct ldlm_callback_suite *cbs,
 		 void *data, __u32 lvb_len, enum lvb_type lvb_type);
-ldlm_error_t ldlm_lock_enqueue(struct ldlm_namespace *, struct ldlm_lock **,
-			       void *cookie, __u64 *flags);
+enum ldlm_error ldlm_lock_enqueue(struct ldlm_namespace *, struct ldlm_lock **,
+				  void *cookie, __u64 *flags);
 void ldlm_lock_addref_internal(struct ldlm_lock *, __u32 mode);
 void ldlm_lock_addref_internal_nolock(struct ldlm_lock *, __u32 mode);
 void ldlm_lock_decref_internal(struct ldlm_lock *, __u32 mode);
@@ -154,7 +155,7 @@ int ldlm_bl_to_thread_lock(struct ldlm_namespace *ns, struct ldlm_lock_desc *ld,
 int ldlm_bl_to_thread_list(struct ldlm_namespace *ns,
 			   struct ldlm_lock_desc *ld,
 			   struct list_head *cancels, int count,
-			   ldlm_cancel_flags_t cancel_flags);
+			   enum ldlm_cancel_flags cancel_flags);
 
 void ldlm_handle_bl_callback(struct ldlm_namespace *ns,
 			     struct ldlm_lock_desc *ld, struct ldlm_lock *lock);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
index 3c8d441..b586d5a 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
@@ -219,7 +219,8 @@ EXPORT_SYMBOL(client_import_find_conn);
 void client_destroy_import(struct obd_import *imp)
 {
 	/* Drop security policy instance after all RPCs have finished/aborted
-	 * to let all busy contexts be released. */
+	 * to let all busy contexts be released.
+	 */
 	class_import_get(imp);
 	class_destroy_import(imp);
 	sptlrpc_import_sec_put(imp);
@@ -227,29 +228,6 @@ void client_destroy_import(struct obd_import *imp)
 }
 EXPORT_SYMBOL(client_destroy_import);
 
-/**
- * Check whether or not the OSC is on MDT.
- * In the config log,
- * osc on MDT
- *	setup 0:{fsname}-OSTxxxx-osc[-MDTxxxx] 1:lustre-OST0000_UUID 2:NID
- * osc on client
- *	setup 0:{fsname}-OSTxxxx-osc 1:lustre-OST0000_UUID 2:NID
- *
- **/
-static int osc_on_mdt(char *obdname)
-{
-	char *ptr;
-
-	ptr = strrchr(obdname, '-');
-	if (ptr == NULL)
-		return 0;
-
-	if (strncmp(ptr + 1, "MDT", 3) == 0)
-		return 1;
-
-	return 0;
-}
-
 /* Configure an RPC client OBD device.
  *
  * lcfg parameters:
@@ -264,11 +242,12 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
 	struct obd_uuid server_uuid;
 	int rq_portal, rp_portal, connect_op;
 	char *name = obddev->obd_type->typ_name;
-	ldlm_ns_type_t ns_type = LDLM_NS_TYPE_UNKNOWN;
+	enum ldlm_ns_type ns_type = LDLM_NS_TYPE_UNKNOWN;
 	int rc;
 
 	/* In a more perfect world, we would hang a ptlrpc_client off of
-	 * obd_type and just use the values from there. */
+	 * obd_type and just use the values from there.
+	 */
 	if (!strcmp(name, LUSTRE_OSC_NAME)) {
 		rq_portal = OST_REQUEST_PORTAL;
 		rp_portal = OSC_REPLY_PORTAL;
@@ -284,22 +263,6 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
 		cli->cl_sp_me = LUSTRE_SP_CLI;
 		cli->cl_sp_to = LUSTRE_SP_MDT;
 		ns_type = LDLM_NS_TYPE_MDC;
-	} else if (!strcmp(name, LUSTRE_OSP_NAME)) {
-		if (strstr(lustre_cfg_buf(lcfg, 1), "OST") == NULL) {
-			/* OSP_on_MDT for other MDTs */
-			connect_op = MDS_CONNECT;
-			cli->cl_sp_to = LUSTRE_SP_MDT;
-			ns_type = LDLM_NS_TYPE_MDC;
-			rq_portal = OUT_PORTAL;
-		} else {
-			/* OSP on MDT for OST */
-			connect_op = OST_CONNECT;
-			cli->cl_sp_to = LUSTRE_SP_OST;
-			ns_type = LDLM_NS_TYPE_OSC;
-			rq_portal = OST_REQUEST_PORTAL;
-		}
-		rp_portal = OSC_REPLY_PORTAL;
-		cli->cl_sp_me = LUSTRE_SP_CLI;
 	} else if (!strcmp(name, LUSTRE_MGC_NAME)) {
 		rq_portal = MGS_REQUEST_PORTAL;
 		rp_portal = MGC_REPLY_PORTAL;
@@ -387,7 +350,8 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
 	/* This value may be reduced at connect time in
 	 * ptlrpc_connect_interpret() . We initialize it to only
 	 * 1MB until we know what the performance looks like.
-	 * In the future this should likely be increased. LU-1431 */
+	 * In the future this should likely be increased. LU-1431
+	 */
 	cli->cl_max_pages_per_rpc = min_t(int, PTLRPC_MAX_BRW_PAGES,
 					  LNET_MTU >> PAGE_CACHE_SHIFT);
 
@@ -400,10 +364,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
 	} else if (totalram_pages >> (20 - PAGE_CACHE_SHIFT) <= 512 /* MB */) {
 		cli->cl_max_rpcs_in_flight = 4;
 	} else {
-		if (osc_on_mdt(obddev->obd_name))
-			cli->cl_max_rpcs_in_flight = MDS_OSC_MAX_RIF_DEFAULT;
-		else
-			cli->cl_max_rpcs_in_flight = OSC_MAX_RIF_DEFAULT;
+		cli->cl_max_rpcs_in_flight = OSC_MAX_RIF_DEFAULT;
 	}
 	rc = ldlm_get_ref();
 	if (rc) {
@@ -415,7 +376,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
 			   &obddev->obd_ldlm_client);
 
 	imp = class_new_import(obddev);
-	if (imp == NULL) {
+	if (!imp) {
 		rc = -ENOENT;
 		goto err_ldlm;
 	}
@@ -451,7 +412,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
 						   LDLM_NAMESPACE_CLIENT,
 						   LDLM_NAMESPACE_GREEDY,
 						   ns_type);
-	if (obddev->obd_namespace == NULL) {
+	if (!obddev->obd_namespace) {
 		CERROR("Unable to create client namespace - %s\n",
 		       obddev->obd_name);
 		rc = -ENOMEM;
@@ -477,7 +438,7 @@ int client_obd_cleanup(struct obd_device *obddev)
 	ldlm_namespace_free_post(obddev->obd_namespace);
 	obddev->obd_namespace = NULL;
 
-	LASSERT(obddev->u.cli.cl_import == NULL);
+	LASSERT(!obddev->u.cli.cl_import);
 
 	ldlm_put_ref();
 	return 0;
@@ -528,7 +489,7 @@ int client_connect_import(const struct lu_env *env,
 		LASSERT(imp->imp_state == LUSTRE_IMP_DISCON);
 		goto out_ldlm;
 	}
-	LASSERT(*exp != NULL && (*exp)->exp_connection);
+	LASSERT(*exp && (*exp)->exp_connection);
 
 	if (data) {
 		LASSERTF((ocd->ocd_connect_flags & data->ocd_connect_flags) ==
@@ -587,17 +548,19 @@ int client_disconnect_export(struct obd_export *exp)
 
 	/* Mark import deactivated now, so we don't try to reconnect if any
 	 * of the cleanup RPCs fails (e.g. LDLM cancel, etc).  We don't
-	 * fully deactivate the import, or that would drop all requests. */
+	 * fully deactivate the import, or that would drop all requests.
+	 */
 	spin_lock(&imp->imp_lock);
 	imp->imp_deactive = 1;
 	spin_unlock(&imp->imp_lock);
 
 	/* Some non-replayable imports (MDS's OSCs) are pinged, so just
 	 * delete it regardless.  (It's safe to delete an import that was
-	 * never added.) */
+	 * never added.)
+	 */
 	(void)ptlrpc_pinger_del_import(imp);
 
-	if (obd->obd_namespace != NULL) {
+	if (obd->obd_namespace) {
 		/* obd_force == local only */
 		ldlm_cli_cancel_unused(obd->obd_namespace, NULL,
 				       obd->obd_force ? LCF_LOCAL : 0, NULL);
@@ -606,7 +569,8 @@ int client_disconnect_export(struct obd_export *exp)
 	}
 
 	/* There's no need to hold sem while disconnecting an import,
-	 * and it may actually cause deadlock in GSS. */
+	 * and it may actually cause deadlock in GSS.
+	 */
 	up_write(&cli->cl_sem);
 	rc = ptlrpc_disconnect_import(imp, 0);
 	down_write(&cli->cl_sem);
@@ -615,7 +579,8 @@ int client_disconnect_export(struct obd_export *exp)
 
 out_disconnect:
 	/* Use server style - class_disconnect should be always called for
-	 * o_disconnect. */
+	 * o_disconnect.
+	 */
 	err = class_disconnect(exp);
 	if (!rc && err)
 		rc = err;
@@ -634,7 +599,8 @@ int target_pack_pool_reply(struct ptlrpc_request *req)
 	struct obd_device *obd;
 
 	/* Check that we still have all structures alive as this may
-	 * be some late RPC at shutdown time. */
+	 * be some late RPC at shutdown time.
+	 */
 	if (unlikely(!req->rq_export || !req->rq_export->exp_obd ||
 		     !exp_connect_lru_resize(req->rq_export))) {
 		lustre_msg_set_slv(req->rq_repmsg, 0);
@@ -684,14 +650,14 @@ void target_send_reply(struct ptlrpc_request *req, int rc, int fail_id)
 
 	svcpt = req->rq_rqbd->rqbd_svcpt;
 	rs = req->rq_reply_state;
-	if (rs == NULL || !rs->rs_difficult) {
+	if (!rs || !rs->rs_difficult) {
 		/* no notifiers */
 		target_send_reply_msg(req, rc, fail_id);
 		return;
 	}
 
 	/* must be an export if locks saved */
-	LASSERT(req->rq_export != NULL);
+	LASSERT(req->rq_export);
 	/* req/reply consistent */
 	LASSERT(rs->rs_svcpt == svcpt);
 
@@ -700,7 +666,7 @@ void target_send_reply(struct ptlrpc_request *req, int rc, int fail_id)
 	LASSERT(!rs->rs_scheduled_ever);
 	LASSERT(!rs->rs_handled);
 	LASSERT(!rs->rs_on_net);
-	LASSERT(rs->rs_export == NULL);
+	LASSERT(!rs->rs_export);
 	LASSERT(list_empty(&rs->rs_obd_list));
 	LASSERT(list_empty(&rs->rs_exp_list));
 
@@ -739,7 +705,8 @@ void target_send_reply(struct ptlrpc_request *req, int rc, int fail_id)
 		 * reply ref until ptlrpc_handle_rs() is done
 		 * with the reply state (if the send was successful, there
 		 * would have been +1 ref for the net, which
-		 * reply_out_callback leaves alone) */
+		 * reply_out_callback leaves alone)
+		 */
 		rs->rs_on_net = 0;
 		ptlrpc_rs_addref(rs);
 	}
@@ -760,7 +727,7 @@ void target_send_reply(struct ptlrpc_request *req, int rc, int fail_id)
 }
 EXPORT_SYMBOL(target_send_reply);
 
-ldlm_mode_t lck_compat_array[] = {
+enum ldlm_mode lck_compat_array[] = {
 	[LCK_EX]	= LCK_COMPAT_EX,
 	[LCK_PW]	= LCK_COMPAT_PW,
 	[LCK_PR]	= LCK_COMPAT_PR,
@@ -775,7 +742,7 @@ ldlm_mode_t lck_compat_array[] = {
  * Rather arbitrary mapping from LDLM error codes to errno values. This should
  * not escape to the user level.
  */
-int ldlm_error2errno(ldlm_error_t error)
+int ldlm_error2errno(enum ldlm_error error)
 {
 	int result;
 
@@ -803,7 +770,7 @@ int ldlm_error2errno(ldlm_error_t error)
 		break;
 	default:
 		if (((int)error) < 0)  /* cast to signed type */
-			result = error; /* as ldlm_error_t can be unsigned */
+			result = error; /* as enum ldlm_error can be unsigned */
 		else {
 			CERROR("Invalid DLM result code: %d\n", error);
 			result = -EPROTO;
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
index cf9ec0c..98975ef 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
@@ -91,7 +91,7 @@ static ldlm_policy_local_to_wire_t ldlm_policy_local_to_wire[] = {
 /**
  * Converts lock policy from local format to on the wire lock_desc format
  */
-static void ldlm_convert_policy_to_wire(ldlm_type_t type,
+static void ldlm_convert_policy_to_wire(enum ldlm_type type,
 					const ldlm_policy_data_t *lpolicy,
 					ldlm_wire_policy_data_t *wpolicy)
 {
@@ -105,7 +105,7 @@ static void ldlm_convert_policy_to_wire(ldlm_type_t type,
 /**
  * Converts lock policy from on the wire lock_desc format to local format
  */
-void ldlm_convert_policy_to_local(struct obd_export *exp, ldlm_type_t type,
+void ldlm_convert_policy_to_local(struct obd_export *exp, enum ldlm_type type,
 				  const ldlm_wire_policy_data_t *wpolicy,
 				  ldlm_policy_data_t *lpolicy)
 {
@@ -326,9 +326,11 @@ static int ldlm_lock_destroy_internal(struct ldlm_lock *lock)
 
 	if (lock->l_export && lock->l_export->exp_lock_hash) {
 		/* NB: it's safe to call cfs_hash_del() even lock isn't
-		 * in exp_lock_hash. */
+		 * in exp_lock_hash.
+		 */
 		/* In the function below, .hs_keycmp resolves to
-		 * ldlm_export_lock_keycmp() */
+		 * ldlm_export_lock_keycmp()
+		 */
 		/* coverity[overrun-buffer-val] */
 		cfs_hash_del(lock->l_export->exp_lock_hash,
 			     &lock->l_remote_handle, &lock->l_exp_hash);
@@ -337,16 +339,6 @@ static int ldlm_lock_destroy_internal(struct ldlm_lock *lock)
 	ldlm_lock_remove_from_lru(lock);
 	class_handle_unhash(&lock->l_handle);
 
-#if 0
-	/* Wake anyone waiting for this lock */
-	/* FIXME: I should probably add yet another flag, instead of using
-	 * l_export to only call this on clients */
-	if (lock->l_export)
-		class_export_put(lock->l_export);
-	lock->l_export = NULL;
-	if (lock->l_export && lock->l_completion_ast)
-		lock->l_completion_ast(lock, 0);
-#endif
 	return 1;
 }
 
@@ -412,11 +404,10 @@ static struct ldlm_lock *ldlm_lock_new(struct ldlm_resource *resource)
 {
 	struct ldlm_lock *lock;
 
-	if (resource == NULL)
-		LBUG();
+	LASSERT(resource);
 
 	lock = kmem_cache_alloc(ldlm_lock_slab, GFP_NOFS | __GFP_ZERO);
-	if (lock == NULL)
+	if (!lock)
 		return NULL;
 
 	spin_lock_init(&lock->l_lock);
@@ -485,7 +476,7 @@ int ldlm_lock_change_resource(struct ldlm_namespace *ns, struct ldlm_lock *lock,
 	unlock_res_and_lock(lock);
 
 	newres = ldlm_resource_get(ns, NULL, new_resid, type, 1);
-	if (newres == NULL)
+	if (!newres)
 		return -ENOMEM;
 
 	lu_ref_add(&newres->lr_reference, "lock", lock);
@@ -547,11 +538,12 @@ struct ldlm_lock *__ldlm_handle2lock(const struct lustre_handle *handle,
 	LASSERT(handle);
 
 	lock = class_handle2object(handle->cookie);
-	if (lock == NULL)
+	if (!lock)
 		return NULL;
 
 	/* It's unlikely but possible that someone marked the lock as
-	 * destroyed after we did handle2object on it */
+	 * destroyed after we did handle2object on it
+	 */
 	if (flags == 0 && ((lock->l_flags & LDLM_FL_DESTROYED) == 0)) {
 		lu_ref_add(&lock->l_reference, "handle", current);
 		return lock;
@@ -559,7 +551,7 @@ struct ldlm_lock *__ldlm_handle2lock(const struct lustre_handle *handle,
 
 	lock_res_and_lock(lock);
 
-	LASSERT(lock->l_resource != NULL);
+	LASSERT(lock->l_resource);
 
 	lu_ref_add_atomic(&lock->l_reference, "handle", current);
 	if (unlikely(lock->l_flags & LDLM_FL_DESTROYED)) {
@@ -611,13 +603,14 @@ static void ldlm_add_bl_work_item(struct ldlm_lock *lock, struct ldlm_lock *new,
 		LDLM_DEBUG(lock, "lock incompatible; sending blocking AST.");
 		lock->l_flags |= LDLM_FL_AST_SENT;
 		/* If the enqueuing client said so, tell the AST recipient to
-		 * discard dirty data, rather than writing back. */
+		 * discard dirty data, rather than writing back.
+		 */
 		if (new->l_flags & LDLM_FL_AST_DISCARD_DATA)
 			lock->l_flags |= LDLM_FL_DISCARD_DATA;
 		LASSERT(list_empty(&lock->l_bl_ast));
 		list_add(&lock->l_bl_ast, work_list);
 		LDLM_LOCK_GET(lock);
-		LASSERT(lock->l_blocking_lock == NULL);
+		LASSERT(!lock->l_blocking_lock);
 		lock->l_blocking_lock = LDLM_LOCK_GET(new);
 	}
 }
@@ -664,7 +657,7 @@ void ldlm_lock_addref(struct lustre_handle *lockh, __u32 mode)
 	struct ldlm_lock *lock;
 
 	lock = ldlm_handle2lock(lockh);
-	LASSERT(lock != NULL);
+	LASSERT(lock);
 	ldlm_lock_addref_internal(lock, mode);
 	LDLM_LOCK_PUT(lock);
 }
@@ -708,7 +701,7 @@ int ldlm_lock_addref_try(struct lustre_handle *lockh, __u32 mode)
 
 	result = -EAGAIN;
 	lock = ldlm_handle2lock(lockh);
-	if (lock != NULL) {
+	if (lock) {
 		lock_res_and_lock(lock);
 		if (lock->l_readers != 0 || lock->l_writers != 0 ||
 		    !(lock->l_flags & LDLM_FL_CBPENDING)) {
@@ -780,7 +773,8 @@ void ldlm_lock_decref_internal(struct ldlm_lock *lock, __u32 mode)
 	if (lock->l_flags & LDLM_FL_LOCAL &&
 	    !lock->l_readers && !lock->l_writers) {
 		/* If this is a local lock on a server namespace and this was
-		 * the last reference, cancel the lock. */
+		 * the last reference, cancel the lock.
+		 */
 		CDEBUG(D_INFO, "forcing cancel of local lock\n");
 		lock->l_flags |= LDLM_FL_CBPENDING;
 	}
@@ -788,7 +782,8 @@ void ldlm_lock_decref_internal(struct ldlm_lock *lock, __u32 mode)
 	if (!lock->l_readers && !lock->l_writers &&
 	    (lock->l_flags & LDLM_FL_CBPENDING)) {
 		/* If we received a blocked AST and this was the last reference,
-		 * run the callback. */
+		 * run the callback.
+		 */
 
 		LDLM_DEBUG(lock, "final decref done on cbpending lock");
 
@@ -809,7 +804,8 @@ void ldlm_lock_decref_internal(struct ldlm_lock *lock, __u32 mode)
 		LDLM_DEBUG(lock, "add lock into lru list");
 
 		/* If this is a client-side namespace and this was the last
-		 * reference, put it on the LRU. */
+		 * reference, put it on the LRU.
+		 */
 		ldlm_lock_add_to_lru(lock);
 		unlock_res_and_lock(lock);
 
@@ -818,7 +814,8 @@ void ldlm_lock_decref_internal(struct ldlm_lock *lock, __u32 mode)
 
 		/* Call ldlm_cancel_lru() only if EARLY_CANCEL and LRU RESIZE
 		 * are not supported by the server, otherwise, it is done on
-		 * enqueue. */
+		 * enqueue.
+		 */
 		if (!exp_connect_cancelset(lock->l_conn_export) &&
 		    !ns_connect_lru_resize(ns))
 			ldlm_cancel_lru(ns, 0, LCF_ASYNC, 0);
@@ -835,7 +832,7 @@ void ldlm_lock_decref(struct lustre_handle *lockh, __u32 mode)
 {
 	struct ldlm_lock *lock = __ldlm_handle2lock(lockh, 0);
 
-	LASSERTF(lock != NULL, "Non-existing lock: %#llx\n", lockh->cookie);
+	LASSERTF(lock, "Non-existing lock: %#llx\n", lockh->cookie);
 	ldlm_lock_decref_internal(lock, mode);
 	LDLM_LOCK_PUT(lock);
 }
@@ -852,7 +849,7 @@ void ldlm_lock_decref_and_cancel(struct lustre_handle *lockh, __u32 mode)
 {
 	struct ldlm_lock *lock = __ldlm_handle2lock(lockh, 0);
 
-	LASSERT(lock != NULL);
+	LASSERT(lock);
 
 	LDLM_DEBUG(lock, "ldlm_lock_decref(%s)", ldlm_lockname[mode]);
 	lock_res_and_lock(lock);
@@ -921,7 +918,8 @@ static void search_granted_lock(struct list_head *queue,
 				if (lock->l_policy_data.l_inodebits.bits ==
 				    req->l_policy_data.l_inodebits.bits) {
 					/* insert point is last lock of
-					 * the policy group */
+					 * the policy group
+					 */
 					prev->res_link =
 						&policy_end->l_res_link;
 					prev->mode_link =
@@ -942,7 +940,8 @@ static void search_granted_lock(struct list_head *queue,
 			}  /* loop over policy groups within the mode group */
 
 			/* insert point is last lock of the mode group,
-			 * new policy group is started */
+			 * new policy group is started
+			 */
 			prev->res_link = &mode_end->l_res_link;
 			prev->mode_link = &mode_end->l_sl_mode;
 			prev->policy_link = &req->l_sl_policy;
@@ -954,7 +953,8 @@ static void search_granted_lock(struct list_head *queue,
 	}
 
 	/* insert point is last lock on the queue,
-	 * new mode group and new policy group are started */
+	 * new mode group and new policy group are started
+	 */
 	prev->res_link = queue->prev;
 	prev->mode_link = &req->l_sl_mode;
 	prev->policy_link = &req->l_sl_policy;
@@ -1034,10 +1034,7 @@ void ldlm_grant_lock(struct ldlm_lock *lock, struct list_head *work_list)
 	else
 		ldlm_resource_add_lock(res, &res->lr_granted, lock);
 
-	if (lock->l_granted_mode < res->lr_most_restr)
-		res->lr_most_restr = lock->l_granted_mode;
-
-	if (work_list && lock->l_completion_ast != NULL)
+	if (work_list && lock->l_completion_ast)
 		ldlm_add_ast_work_item(lock, NULL, work_list);
 
 	ldlm_pool_add(&ldlm_res_to_ns(res)->ns_pool, lock);
@@ -1050,7 +1047,7 @@ void ldlm_grant_lock(struct ldlm_lock *lock, struct list_head *work_list)
  * comment above ldlm_lock_match
  */
 static struct ldlm_lock *search_queue(struct list_head *queue,
-				      ldlm_mode_t *mode,
+				      enum ldlm_mode *mode,
 				      ldlm_policy_data_t *policy,
 				      struct ldlm_lock *old_lock,
 				      __u64 flags, int unref)
@@ -1059,7 +1056,7 @@ static struct ldlm_lock *search_queue(struct list_head *queue,
 	struct list_head       *tmp;
 
 	list_for_each(tmp, queue) {
-		ldlm_mode_t match;
+		enum ldlm_mode match;
 
 		lock = list_entry(tmp, struct ldlm_lock, l_res_link);
 
@@ -1067,7 +1064,8 @@ static struct ldlm_lock *search_queue(struct list_head *queue,
 			break;
 
 		/* Check if this lock can be matched.
-		 * Used by LU-2919(exclusive open) for open lease lock */
+		 * Used by LU-2919(exclusive open) for open lease lock
+		 */
 		if (ldlm_is_excl(lock))
 			continue;
 
@@ -1076,7 +1074,8 @@ static struct ldlm_lock *search_queue(struct list_head *queue,
 		 * if it passes in CBPENDING and the lock still has users.
 		 * this is generally only going to be used by children
 		 * whose parents already hold a lock so forward progress
-		 * can still happen. */
+		 * can still happen.
+		 */
 		if (lock->l_flags & LDLM_FL_CBPENDING &&
 		    !(flags & LDLM_FL_CBPENDING))
 			continue;
@@ -1100,7 +1099,8 @@ static struct ldlm_lock *search_queue(struct list_head *queue,
 			continue;
 
 		/* We match if we have existing lock with same or wider set
-		   of bits. */
+		 * of bits.
+		 */
 		if (lock->l_resource->lr_type == LDLM_IBITS &&
 		     ((lock->l_policy_data.l_inodebits.bits &
 		      policy->l_inodebits.bits) !=
@@ -1192,16 +1192,18 @@ EXPORT_SYMBOL(ldlm_lock_allow_match);
  * keep caller code unchanged), the context failure will be discovered by
  * caller sometime later.
  */
-ldlm_mode_t ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
-			    const struct ldlm_res_id *res_id, ldlm_type_t type,
-			    ldlm_policy_data_t *policy, ldlm_mode_t mode,
-			    struct lustre_handle *lockh, int unref)
+enum ldlm_mode ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
+			       const struct ldlm_res_id *res_id,
+			       enum ldlm_type type,
+			       ldlm_policy_data_t *policy,
+			       enum ldlm_mode mode,
+			       struct lustre_handle *lockh, int unref)
 {
 	struct ldlm_resource *res;
 	struct ldlm_lock *lock, *old_lock = NULL;
 	int rc = 0;
 
-	if (ns == NULL) {
+	if (!ns) {
 		old_lock = ldlm_handle2lock(lockh);
 		LASSERT(old_lock);
 
@@ -1212,8 +1214,8 @@ ldlm_mode_t ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
 	}
 
 	res = ldlm_resource_get(ns, NULL, res_id, type, 0);
-	if (res == NULL) {
-		LASSERT(old_lock == NULL);
+	if (!res) {
+		LASSERT(!old_lock);
 		return 0;
 	}
 
@@ -1222,7 +1224,7 @@ ldlm_mode_t ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
 
 	lock = search_queue(&res->lr_granted, &mode, policy, old_lock,
 			    flags, unref);
-	if (lock != NULL) {
+	if (lock) {
 		rc = 1;
 		goto out;
 	}
@@ -1232,7 +1234,7 @@ ldlm_mode_t ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
 	}
 	lock = search_queue(&res->lr_waiting, &mode, policy, old_lock,
 			    flags, unref);
-	if (lock != NULL) {
+	if (lock) {
 		rc = 1;
 		goto out;
 	}
@@ -1317,14 +1319,14 @@ ldlm_mode_t ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
 }
 EXPORT_SYMBOL(ldlm_lock_match);
 
-ldlm_mode_t ldlm_revalidate_lock_handle(struct lustre_handle *lockh,
-					__u64 *bits)
+enum ldlm_mode ldlm_revalidate_lock_handle(struct lustre_handle *lockh,
+					   __u64 *bits)
 {
 	struct ldlm_lock *lock;
-	ldlm_mode_t mode = 0;
+	enum ldlm_mode mode = 0;
 
 	lock = ldlm_handle2lock(lockh);
-	if (lock != NULL) {
+	if (lock) {
 		lock_res_and_lock(lock);
 		if (lock->l_flags & LDLM_FL_GONE_MASK)
 			goto out;
@@ -1340,7 +1342,7 @@ ldlm_mode_t ldlm_revalidate_lock_handle(struct lustre_handle *lockh,
 	}
 
 out:
-	if (lock != NULL) {
+	if (lock) {
 		unlock_res_and_lock(lock);
 		LDLM_LOCK_PUT(lock);
 	}
@@ -1354,7 +1356,7 @@ int ldlm_fill_lvb(struct ldlm_lock *lock, struct req_capsule *pill,
 {
 	void *lvb;
 
-	LASSERT(data != NULL);
+	LASSERT(data);
 	LASSERT(size >= 0);
 
 	switch (lock->l_lvb_type) {
@@ -1368,7 +1370,7 @@ int ldlm_fill_lvb(struct ldlm_lock *lock, struct req_capsule *pill,
 				lvb = req_capsule_server_swab_get(pill,
 						&RMF_DLM_LVB,
 						lustre_swab_ost_lvb);
-			if (unlikely(lvb == NULL)) {
+			if (unlikely(!lvb)) {
 				LDLM_ERROR(lock, "no LVB");
 				return -EPROTO;
 			}
@@ -1385,7 +1387,7 @@ int ldlm_fill_lvb(struct ldlm_lock *lock, struct req_capsule *pill,
 				lvb = req_capsule_server_sized_swab_get(pill,
 						&RMF_DLM_LVB, size,
 						lustre_swab_ost_lvb_v1);
-			if (unlikely(lvb == NULL)) {
+			if (unlikely(!lvb)) {
 				LDLM_ERROR(lock, "no LVB");
 				return -EPROTO;
 			}
@@ -1410,7 +1412,7 @@ int ldlm_fill_lvb(struct ldlm_lock *lock, struct req_capsule *pill,
 				lvb = req_capsule_server_swab_get(pill,
 						&RMF_DLM_LVB,
 						lustre_swab_lquota_lvb);
-			if (unlikely(lvb == NULL)) {
+			if (unlikely(!lvb)) {
 				LDLM_ERROR(lock, "no LVB");
 				return -EPROTO;
 			}
@@ -1431,7 +1433,7 @@ int ldlm_fill_lvb(struct ldlm_lock *lock, struct req_capsule *pill,
 			lvb = req_capsule_client_get(pill, &RMF_DLM_LVB);
 		else
 			lvb = req_capsule_server_get(pill, &RMF_DLM_LVB);
-		if (unlikely(lvb == NULL)) {
+		if (unlikely(!lvb)) {
 			LDLM_ERROR(lock, "no LVB");
 			return -EPROTO;
 		}
@@ -1453,8 +1455,8 @@ int ldlm_fill_lvb(struct ldlm_lock *lock, struct req_capsule *pill,
  */
 struct ldlm_lock *ldlm_lock_create(struct ldlm_namespace *ns,
 				   const struct ldlm_res_id *res_id,
-				   ldlm_type_t type,
-				   ldlm_mode_t mode,
+				   enum ldlm_type type,
+				   enum ldlm_mode mode,
 				   const struct ldlm_callback_suite *cbs,
 				   void *data, __u32 lvb_len,
 				   enum lvb_type lvb_type)
@@ -1463,12 +1465,12 @@ struct ldlm_lock *ldlm_lock_create(struct ldlm_namespace *ns,
 	struct ldlm_resource *res;
 
 	res = ldlm_resource_get(ns, NULL, res_id, type, 1);
-	if (res == NULL)
+	if (!res)
 		return NULL;
 
 	lock = ldlm_lock_new(res);
 
-	if (lock == NULL)
+	if (!lock)
 		return NULL;
 
 	lock->l_req_mode = mode;
@@ -1483,7 +1485,7 @@ struct ldlm_lock *ldlm_lock_create(struct ldlm_namespace *ns,
 	lock->l_tree_node = NULL;
 	/* if this is the extent lock, allocate the interval tree node */
 	if (type == LDLM_EXTENT) {
-		if (ldlm_interval_alloc(lock) == NULL)
+		if (!ldlm_interval_alloc(lock))
 			goto out;
 	}
 
@@ -1514,9 +1516,9 @@ out:
  * Does not block. As a result of enqueue the lock would be put
  * into granted or waiting list.
  */
-ldlm_error_t ldlm_lock_enqueue(struct ldlm_namespace *ns,
-			       struct ldlm_lock **lockp,
-			       void *cookie, __u64 *flags)
+enum ldlm_error ldlm_lock_enqueue(struct ldlm_namespace *ns,
+				  struct ldlm_lock **lockp,
+				  void *cookie, __u64 *flags)
 {
 	struct ldlm_lock *lock = *lockp;
 	struct ldlm_resource *res = lock->l_resource;
@@ -1527,7 +1529,8 @@ ldlm_error_t ldlm_lock_enqueue(struct ldlm_namespace *ns,
 	if (lock->l_req_mode == lock->l_granted_mode) {
 		/* The server returned a blocked lock, but it was granted
 		 * before we got a chance to actually enqueue it.  We don't
-		 * need to do anything else. */
+		 * need to do anything else.
+		 */
 		*flags &= ~(LDLM_FL_BLOCK_GRANTED |
 			    LDLM_FL_BLOCK_CONV | LDLM_FL_BLOCK_WAIT);
 		goto out;
@@ -1540,7 +1543,8 @@ ldlm_error_t ldlm_lock_enqueue(struct ldlm_namespace *ns,
 		LBUG();
 
 	/* Some flags from the enqueue want to make it into the AST, via the
-	 * lock's l_flags. */
+	 * lock's l_flags.
+	 */
 	lock->l_flags |= *flags & LDLM_FL_AST_DISCARD_DATA;
 
 	/*
@@ -1621,19 +1625,21 @@ ldlm_work_cp_ast_lock(struct ptlrpc_request_set *rqset, void *opaq)
 	 * This can't happen with the blocking_ast, however, because we
 	 * will never call the local blocking_ast until we drop our
 	 * reader/writer reference, which we won't do until we get the
-	 * reply and finish enqueueing. */
+	 * reply and finish enqueueing.
+	 */
 
 	/* nobody should touch l_cp_ast */
 	lock_res_and_lock(lock);
 	list_del_init(&lock->l_cp_ast);
 	LASSERT(lock->l_flags & LDLM_FL_CP_REQD);
 	/* save l_completion_ast since it can be changed by
-	 * mds_intent_policy(), see bug 14225 */
+	 * mds_intent_policy(), see bug 14225
+	 */
 	completion_callback = lock->l_completion_ast;
 	lock->l_flags &= ~LDLM_FL_CP_REQD;
 	unlock_res_and_lock(lock);
 
-	if (completion_callback != NULL)
+	if (completion_callback)
 		rc = completion_callback(lock, 0, (void *)arg);
 	LDLM_LOCK_RELEASE(lock);
 
@@ -1749,10 +1755,11 @@ int ldlm_run_ast_work(struct ldlm_namespace *ns, struct list_head *rpc_list,
 	/* We create a ptlrpc request set with flow control extension.
 	 * This request set will use the work_ast_lock function to produce new
 	 * requests and will send a new request each time one completes in order
-	 * to keep the number of requests in flight to ns_max_parallel_ast */
+	 * to keep the number of requests in flight to ns_max_parallel_ast
+	 */
 	arg->set = ptlrpc_prep_fcset(ns->ns_max_parallel_ast ? : UINT_MAX,
 				     work_ast_lock, arg);
-	if (arg->set == NULL) {
+	if (!arg->set) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1815,7 +1822,8 @@ void ldlm_lock_cancel(struct ldlm_lock *lock)
 	ns  = ldlm_res_to_ns(res);
 
 	/* Please do not, no matter how tempting, remove this LBUG without
-	 * talking to me first. -phik */
+	 * talking to me first. -phik
+	 */
 	if (lock->l_readers || lock->l_writers) {
 		LDLM_ERROR(lock, "lock still has references");
 		LBUG();
@@ -1831,7 +1839,8 @@ void ldlm_lock_cancel(struct ldlm_lock *lock)
 		ldlm_pool_del(&ns->ns_pool, lock);
 
 	/* Make sure we will not be called again for same lock what is possible
-	 * if not to zero out lock->l_granted_mode */
+	 * if not to zero out lock->l_granted_mode
+	 */
 	lock->l_granted_mode = LCK_MINMODE;
 	unlock_res_and_lock(lock);
 }
@@ -1846,7 +1855,7 @@ int ldlm_lock_set_data(struct lustre_handle *lockh, void *data)
 	int rc = -EINVAL;
 
 	if (lock) {
-		if (lock->l_ast_data == NULL)
+		if (!lock->l_ast_data)
 			lock->l_ast_data = data;
 		if (lock->l_ast_data == data)
 			rc = 0;
@@ -1874,7 +1883,7 @@ void ldlm_lock_dump_handle(int level, struct lustre_handle *lockh)
 		return;
 
 	lock = ldlm_handle2lock(lockh);
-	if (lock == NULL)
+	if (!lock)
 		return;
 
 	LDLM_DEBUG_LIMIT(level, lock, "###");
@@ -1900,13 +1909,13 @@ void _ldlm_lock_debug(struct ldlm_lock *lock,
 
 	if (exp && exp->exp_connection) {
 		nid = libcfs_nid2str(exp->exp_connection->c_peer.nid);
-	} else if (exp && exp->exp_obd != NULL) {
+	} else if (exp && exp->exp_obd) {
 		struct obd_import *imp = exp->exp_obd->u.cli.cl_import;
 
 		nid = libcfs_nid2str(imp->imp_connection->c_peer.nid);
 	}
 
-	if (resource == NULL) {
+	if (!resource) {
 		libcfs_debug_vmsg2(msgdata, fmt, args,
 				   " ns: \?\? lock: %p/%#llx lrc: %d/%d,%d mode: %s/%s res: \?\? rrc=\?\? type: \?\?\? flags: %#llx nid: %s remote: %#llx expref: %d pid: %u timeout: %lu lvb_type: %d\n",
 				   lock,
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
index 79aeb2b..ebe9042 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
@@ -107,7 +107,7 @@ struct ldlm_bl_work_item {
 	struct list_head	      blwi_head;
 	int		     blwi_count;
 	struct completion	blwi_comp;
-	ldlm_cancel_flags_t     blwi_flags;
+	enum ldlm_cancel_flags  blwi_flags;
 	int		     blwi_mem_pressure;
 };
 
@@ -136,7 +136,7 @@ void ldlm_handle_bl_callback(struct ldlm_namespace *ns,
 		CDEBUG(D_DLMTRACE,
 		       "Lock %p already unused, calling callback (%p)\n", lock,
 		       lock->l_blocking_ast);
-		if (lock->l_blocking_ast != NULL)
+		if (lock->l_blocking_ast)
 			lock->l_blocking_ast(lock, ld, lock->l_ast_data,
 					     LDLM_CB_BLOCKING);
 	} else {
@@ -185,7 +185,7 @@ static void ldlm_handle_cp_callback(struct ptlrpc_request *req,
 	} else if (lvb_len > 0) {
 		if (lock->l_lvb_len > 0) {
 			/* for extent lock, lvb contains ost_lvb{}. */
-			LASSERT(lock->l_lvb_data != NULL);
+			LASSERT(lock->l_lvb_data);
 
 			if (unlikely(lock->l_lvb_len < lvb_len)) {
 				LDLM_ERROR(lock, "Replied LVB is larger than expectation, expected = %d, replied = %d",
@@ -194,7 +194,8 @@ static void ldlm_handle_cp_callback(struct ptlrpc_request *req,
 				goto out;
 			}
 		} else if (ldlm_has_layout(lock)) { /* for layout lock, lvb has
-						     * variable length */
+						     * variable length
+						     */
 			void *lvb_data;
 
 			lvb_data = kzalloc(lvb_len, GFP_NOFS);
@@ -205,7 +206,7 @@ static void ldlm_handle_cp_callback(struct ptlrpc_request *req,
 			}
 
 			lock_res_and_lock(lock);
-			LASSERT(lock->l_lvb_data == NULL);
+			LASSERT(!lock->l_lvb_data);
 			lock->l_lvb_type = LVB_T_LAYOUT;
 			lock->l_lvb_data = lvb_data;
 			lock->l_lvb_len = lvb_len;
@@ -224,7 +225,8 @@ static void ldlm_handle_cp_callback(struct ptlrpc_request *req,
 	}
 
 	/* If we receive the completion AST before the actual enqueue returned,
-	 * then we might need to switch lock modes, resources, or extents. */
+	 * then we might need to switch lock modes, resources, or extents.
+	 */
 	if (dlm_req->lock_desc.l_granted_mode != lock->l_req_mode) {
 		lock->l_req_mode = dlm_req->lock_desc.l_granted_mode;
 		LDLM_DEBUG(lock, "completion AST, new lock mode");
@@ -256,7 +258,8 @@ static void ldlm_handle_cp_callback(struct ptlrpc_request *req,
 
 	if (dlm_req->lock_flags & LDLM_FL_AST_SENT) {
 		/* BL_AST locks are not needed in LRU.
-		 * Let ldlm_cancel_lru() be fast. */
+		 * Let ldlm_cancel_lru() be fast.
+		 */
 		ldlm_lock_remove_from_lru(lock);
 		lock->l_flags |= LDLM_FL_CBPENDING | LDLM_FL_BL_AST;
 		LDLM_DEBUG(lock, "completion AST includes blocking AST");
@@ -276,8 +279,7 @@ static void ldlm_handle_cp_callback(struct ptlrpc_request *req,
 
 	LDLM_DEBUG(lock, "callback handler finished, about to run_ast_work");
 
-	/* Let Enqueue to call osc_lock_upcall() and initialize
-	 * l_ast_data */
+	/* Let Enqueue to call osc_lock_upcall() and initialize l_ast_data */
 	OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_CP_ENQ_RACE, 2);
 
 	ldlm_run_ast_work(ns, &ast_list, LDLM_WORK_CP_AST);
@@ -312,10 +314,10 @@ static void ldlm_handle_gl_callback(struct ptlrpc_request *req,
 
 	LDLM_DEBUG(lock, "client glimpse AST callback handler");
 
-	if (lock->l_glimpse_ast != NULL)
+	if (lock->l_glimpse_ast)
 		rc = lock->l_glimpse_ast(lock, req);
 
-	if (req->rq_repmsg != NULL) {
+	if (req->rq_repmsg) {
 		ptlrpc_reply(req);
 	} else {
 		req->rq_status = rc;
@@ -353,7 +355,7 @@ static int ldlm_callback_reply(struct ptlrpc_request *req, int rc)
 }
 
 static int __ldlm_bl_to_thread(struct ldlm_bl_work_item *blwi,
-			       ldlm_cancel_flags_t cancel_flags)
+			       enum ldlm_cancel_flags cancel_flags)
 {
 	struct ldlm_bl_pool *blp = ldlm_state->ldlm_bl_pool;
 
@@ -371,7 +373,8 @@ static int __ldlm_bl_to_thread(struct ldlm_bl_work_item *blwi,
 	wake_up(&blp->blp_waitq);
 
 	/* can not check blwi->blwi_flags as blwi could be already freed in
-	   LCF_ASYNC mode */
+	 * LCF_ASYNC mode
+	 */
 	if (!(cancel_flags & LCF_ASYNC))
 		wait_for_completion(&blwi->blwi_comp);
 
@@ -383,7 +386,7 @@ static inline void init_blwi(struct ldlm_bl_work_item *blwi,
 			     struct ldlm_lock_desc *ld,
 			     struct list_head *cancels, int count,
 			     struct ldlm_lock *lock,
-			     ldlm_cancel_flags_t cancel_flags)
+			     enum ldlm_cancel_flags cancel_flags)
 {
 	init_completion(&blwi->blwi_comp);
 	INIT_LIST_HEAD(&blwi->blwi_head);
@@ -393,7 +396,7 @@ static inline void init_blwi(struct ldlm_bl_work_item *blwi,
 
 	blwi->blwi_ns = ns;
 	blwi->blwi_flags = cancel_flags;
-	if (ld != NULL)
+	if (ld)
 		blwi->blwi_ld = *ld;
 	if (count) {
 		list_add(&blwi->blwi_head, cancels);
@@ -417,7 +420,7 @@ static int ldlm_bl_to_thread(struct ldlm_namespace *ns,
 			     struct ldlm_lock_desc *ld,
 			     struct ldlm_lock *lock,
 			     struct list_head *cancels, int count,
-			     ldlm_cancel_flags_t cancel_flags)
+			     enum ldlm_cancel_flags cancel_flags)
 {
 	if (cancels && count == 0)
 		return 0;
@@ -451,7 +454,7 @@ int ldlm_bl_to_thread_lock(struct ldlm_namespace *ns, struct ldlm_lock_desc *ld,
 
 int ldlm_bl_to_thread_list(struct ldlm_namespace *ns, struct ldlm_lock_desc *ld,
 			   struct list_head *cancels, int count,
-			   ldlm_cancel_flags_t cancel_flags)
+			   enum ldlm_cancel_flags cancel_flags)
 {
 	return ldlm_bl_to_thread(ns, ld, NULL, cancels, count, cancel_flags);
 }
@@ -470,14 +473,14 @@ static int ldlm_handle_setinfo(struct ptlrpc_request *req)
 	req_capsule_set(&req->rq_pill, &RQF_OBD_SET_INFO);
 
 	key = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
-	if (key == NULL) {
+	if (!key) {
 		DEBUG_REQ(D_IOCTL, req, "no set_info key");
 		return -EFAULT;
 	}
 	keylen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_KEY,
 				      RCL_CLIENT);
 	val = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_VAL);
-	if (val == NULL) {
+	if (!val) {
 		DEBUG_REQ(D_IOCTL, req, "no set_info val");
 		return -EFAULT;
 	}
@@ -519,7 +522,7 @@ static int ldlm_handle_qc_callback(struct ptlrpc_request *req)
 	struct client_obd *cli = &req->rq_export->exp_obd->u.cli;
 
 	oqctl = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
-	if (oqctl == NULL) {
+	if (!oqctl) {
 		CERROR("Can't unpack obd_quotactl\n");
 		return -EPROTO;
 	}
@@ -541,7 +544,8 @@ static int ldlm_callback_handler(struct ptlrpc_request *req)
 	/* Requests arrive in sender's byte order.  The ptlrpc service
 	 * handler has already checked and, if necessary, byte-swapped the
 	 * incoming request message body, but I am responsible for the
-	 * message buffers. */
+	 * message buffers.
+	 */
 
 	/* do nothing for sec context finalize */
 	if (lustre_msg_get_opc(req->rq_reqmsg) == SEC_CTX_FINI)
@@ -549,15 +553,14 @@ static int ldlm_callback_handler(struct ptlrpc_request *req)
 
 	req_capsule_init(&req->rq_pill, req, RCL_SERVER);
 
-	if (req->rq_export == NULL) {
+	if (!req->rq_export) {
 		rc = ldlm_callback_reply(req, -ENOTCONN);
 		ldlm_callback_errmsg(req, "Operate on unconnected server",
 				     rc, NULL);
 		return 0;
 	}
 
-	LASSERT(req->rq_export != NULL);
-	LASSERT(req->rq_export->exp_obd != NULL);
+	LASSERT(req->rq_export->exp_obd);
 
 	switch (lustre_msg_get_opc(req->rq_reqmsg)) {
 	case LDLM_BL_CALLBACK:
@@ -591,12 +594,12 @@ static int ldlm_callback_handler(struct ptlrpc_request *req)
 	}
 
 	ns = req->rq_export->exp_obd->obd_namespace;
-	LASSERT(ns != NULL);
+	LASSERT(ns);
 
 	req_capsule_set(&req->rq_pill, &RQF_LDLM_CALLBACK);
 
 	dlm_req = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ);
-	if (dlm_req == NULL) {
+	if (!dlm_req) {
 		rc = ldlm_callback_reply(req, -EPROTO);
 		ldlm_callback_errmsg(req, "Operate without parameter", rc,
 				     NULL);
@@ -604,7 +607,8 @@ static int ldlm_callback_handler(struct ptlrpc_request *req)
 	}
 
 	/* Force a known safe race, send a cancel to the server for a lock
-	 * which the server has already started a blocking callback on. */
+	 * which the server has already started a blocking callback on.
+	 */
 	if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CANCEL_BL_CB_RACE) &&
 	    lustre_msg_get_opc(req->rq_reqmsg) == LDLM_BL_CALLBACK) {
 		rc = ldlm_cli_cancel(&dlm_req->lock_handle[0], 0);
@@ -634,7 +638,8 @@ static int ldlm_callback_handler(struct ptlrpc_request *req)
 		/* If somebody cancels lock and cache is already dropped,
 		 * or lock is failed before cp_ast received on client,
 		 * we can tell the server we have no lock. Otherwise, we
-		 * should send cancel after dropping the cache. */
+		 * should send cancel after dropping the cache.
+		 */
 		if (((lock->l_flags & LDLM_FL_CANCELING) &&
 		    (lock->l_flags & LDLM_FL_BL_DONE)) ||
 		    (lock->l_flags & LDLM_FL_FAILED)) {
@@ -648,7 +653,8 @@ static int ldlm_callback_handler(struct ptlrpc_request *req)
 			return 0;
 		}
 		/* BL_AST locks are not needed in LRU.
-		 * Let ldlm_cancel_lru() be fast. */
+		 * Let ldlm_cancel_lru() be fast.
+		 */
 		ldlm_lock_remove_from_lru(lock);
 		lock->l_flags |= LDLM_FL_BL_AST;
 	}
@@ -661,7 +667,8 @@ static int ldlm_callback_handler(struct ptlrpc_request *req)
 	 * But we'd also like to be able to indicate in the reply that we're
 	 * cancelling right now, because it's unused, or have an intent result
 	 * in the reply, so we might have to push the responsibility for sending
-	 * the reply down into the AST handlers, alas. */
+	 * the reply down into the AST handlers, alas.
+	 */
 
 	switch (lustre_msg_get_opc(req->rq_reqmsg)) {
 	case LDLM_BL_CALLBACK:
@@ -781,17 +788,17 @@ static int ldlm_bl_thread_main(void *arg)
 
 		blwi = ldlm_bl_get_work(blp);
 
-		if (blwi == NULL) {
+		if (!blwi) {
 			atomic_dec(&blp->blp_busy_threads);
 			l_wait_event_exclusive(blp->blp_waitq,
-					 (blwi = ldlm_bl_get_work(blp)) != NULL,
+					 (blwi = ldlm_bl_get_work(blp)),
 					 &lwi);
 			busy = atomic_inc_return(&blp->blp_busy_threads);
 		} else {
 			busy = atomic_read(&blp->blp_busy_threads);
 		}
 
-		if (blwi->blwi_ns == NULL)
+		if (!blwi->blwi_ns)
 			/* added by ldlm_cleanup() */
 			break;
 
@@ -810,7 +817,8 @@ static int ldlm_bl_thread_main(void *arg)
 			/* The special case when we cancel locks in LRU
 			 * asynchronously, we pass the list of locks here.
 			 * Thus locks are marked LDLM_FL_CANCELING, but NOT
-			 * canceled locally yet. */
+			 * canceled locally yet.
+			 */
 			count = ldlm_cli_cancel_list_local(&blwi->blwi_head,
 							   blwi->blwi_count,
 							   LCF_BL_AST);
@@ -915,7 +923,7 @@ static int ldlm_setup(void)
 	int rc = 0;
 	int i;
 
-	if (ldlm_state != NULL)
+	if (ldlm_state)
 		return -EALREADY;
 
 	ldlm_state = kzalloc(sizeof(*ldlm_state), GFP_NOFS);
@@ -1040,7 +1048,7 @@ static int ldlm_cleanup(void)
 
 	ldlm_pools_fini();
 
-	if (ldlm_state->ldlm_bl_pool != NULL) {
+	if (ldlm_state->ldlm_bl_pool) {
 		struct ldlm_bl_pool *blp = ldlm_state->ldlm_bl_pool;
 
 		while (atomic_read(&blp->blp_num_threads) > 0) {
@@ -1059,7 +1067,7 @@ static int ldlm_cleanup(void)
 		kfree(blp);
 	}
 
-	if (ldlm_state->ldlm_cb_service != NULL)
+	if (ldlm_state->ldlm_cb_service)
 		ptlrpc_unregister_service(ldlm_state->ldlm_cb_service);
 
 	if (ldlm_ns_kset)
@@ -1085,13 +1093,13 @@ int ldlm_init(void)
 	ldlm_resource_slab = kmem_cache_create("ldlm_resources",
 					       sizeof(struct ldlm_resource), 0,
 					       SLAB_HWCACHE_ALIGN, NULL);
-	if (ldlm_resource_slab == NULL)
+	if (!ldlm_resource_slab)
 		return -ENOMEM;
 
 	ldlm_lock_slab = kmem_cache_create("ldlm_locks",
 			      sizeof(struct ldlm_lock), 0,
 			      SLAB_HWCACHE_ALIGN | SLAB_DESTROY_BY_RCU, NULL);
-	if (ldlm_lock_slab == NULL) {
+	if (!ldlm_lock_slab) {
 		kmem_cache_destroy(ldlm_resource_slab);
 		return -ENOMEM;
 	}
@@ -1099,7 +1107,7 @@ int ldlm_init(void)
 	ldlm_interval_slab = kmem_cache_create("interval_node",
 					sizeof(struct ldlm_interval),
 					0, SLAB_HWCACHE_ALIGN, NULL);
-	if (ldlm_interval_slab == NULL) {
+	if (!ldlm_interval_slab) {
 		kmem_cache_destroy(ldlm_resource_slab);
 		kmem_cache_destroy(ldlm_lock_slab);
 		return -ENOMEM;
@@ -1117,7 +1125,8 @@ void ldlm_exit(void)
 	kmem_cache_destroy(ldlm_resource_slab);
 	/* ldlm_lock_put() use RCU to call ldlm_lock_free, so need call
 	 * synchronize_rcu() to wait a grace period elapsed, so that
-	 * ldlm_lock_free() get a chance to be called. */
+	 * ldlm_lock_free() get a chance to be called.
+	 */
 	synchronize_rcu();
 	kmem_cache_destroy(ldlm_lock_slab);
 	kmem_cache_destroy(ldlm_interval_slab);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
index 3d7c137..3e937b0 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
@@ -246,7 +246,6 @@ static void ldlm_cli_pool_pop_slv(struct ldlm_pool *pl)
 	 */
 	obd = container_of(pl, struct ldlm_namespace,
 			   ns_pool)->ns_obd;
-	LASSERT(obd != NULL);
 	read_lock(&obd->obd_pool_lock);
 	pl->pl_server_lock_volume = obd->obd_pool_slv;
 	atomic_set(&pl->pl_limit, obd->obd_pool_limit);
@@ -381,7 +380,7 @@ static int ldlm_pool_recalc(struct ldlm_pool *pl)
 	spin_unlock(&pl->pl_lock);
 
  recalc:
-	if (pl->pl_ops->po_recalc != NULL) {
+	if (pl->pl_ops->po_recalc) {
 		count = pl->pl_ops->po_recalc(pl);
 		lprocfs_counter_add(pl->pl_stats, LDLM_POOL_RECALC_STAT,
 				    count);
@@ -409,7 +408,7 @@ static int ldlm_pool_shrink(struct ldlm_pool *pl, int nr, gfp_t gfp_mask)
 {
 	int cancel = 0;
 
-	if (pl->pl_ops->po_shrink != NULL) {
+	if (pl->pl_ops->po_shrink) {
 		cancel = pl->pl_ops->po_shrink(pl, nr, gfp_mask);
 		if (nr > 0) {
 			lprocfs_counter_add(pl->pl_stats,
@@ -643,11 +642,11 @@ static void ldlm_pool_sysfs_fini(struct ldlm_pool *pl)
 
 static void ldlm_pool_debugfs_fini(struct ldlm_pool *pl)
 {
-	if (pl->pl_stats != NULL) {
+	if (pl->pl_stats) {
 		lprocfs_free_stats(&pl->pl_stats);
 		pl->pl_stats = NULL;
 	}
-	if (pl->pl_debugfs_entry != NULL) {
+	if (pl->pl_debugfs_entry) {
 		ldebugfs_remove(&pl->pl_debugfs_entry);
 		pl->pl_debugfs_entry = NULL;
 	}
@@ -834,7 +833,7 @@ static unsigned long ldlm_pools_count(ldlm_side_t client, gfp_t gfp_mask)
 			continue;
 		}
 
-		if (ns_old == NULL)
+		if (!ns_old)
 			ns_old = ns;
 
 		ldlm_namespace_get(ns);
@@ -957,7 +956,7 @@ static int ldlm_pools_recalc(ldlm_side_t client)
 			continue;
 		}
 
-		if (ns_old == NULL)
+		if (!ns_old)
 			ns_old = ns;
 
 		spin_lock(&ns->ns_lock);
@@ -1040,7 +1039,7 @@ static int ldlm_pools_thread_start(void)
 	struct l_wait_info lwi = { 0 };
 	struct task_struct *task;
 
-	if (ldlm_pools_thread != NULL)
+	if (ldlm_pools_thread)
 		return -EALREADY;
 
 	ldlm_pools_thread = kzalloc(sizeof(*ldlm_pools_thread), GFP_NOFS);
@@ -1065,7 +1064,7 @@ static int ldlm_pools_thread_start(void)
 
 static void ldlm_pools_thread_stop(void)
 {
-	if (ldlm_pools_thread == NULL)
+	if (!ldlm_pools_thread)
 		return;
 
 	thread_set_flags(ldlm_pools_thread, SVC_STOPPING);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
index b9eb377..2d501a6 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
@@ -94,7 +94,7 @@ static int ldlm_expired_completion_wait(void *data)
 	struct obd_import *imp;
 	struct obd_device *obd;
 
-	if (lock->l_conn_export == NULL) {
+	if (!lock->l_conn_export) {
 		static unsigned long next_dump, last_dump;
 
 		LCONSOLE_WARN("lock timed out (enqueued at %lld, %llds ago)\n",
@@ -128,7 +128,8 @@ static int ldlm_expired_completion_wait(void *data)
 }
 
 /* We use the same basis for both server side and client side functions
-   from a single node. */
+ * from a single node.
+ */
 static int ldlm_get_enq_timeout(struct ldlm_lock *lock)
 {
 	int timeout = at_get(ldlm_lock_to_ns_at(lock));
@@ -136,8 +137,9 @@ static int ldlm_get_enq_timeout(struct ldlm_lock *lock)
 	if (AT_OFF)
 		return obd_timeout / 2;
 	/* Since these are non-updating timeouts, we should be conservative.
-	   It would be nice to have some kind of "early reply" mechanism for
-	   lock callbacks too... */
+	 * It would be nice to have some kind of "early reply" mechanism for
+	 * lock callbacks too...
+	 */
 	timeout = min_t(int, at_max, timeout + (timeout >> 1)); /* 150% */
 	return max(timeout, ldlm_enqueue_min);
 }
@@ -239,12 +241,13 @@ noreproc:
 	obd = class_exp2obd(lock->l_conn_export);
 
 	/* if this is a local lock, then there is no import */
-	if (obd != NULL)
+	if (obd)
 		imp = obd->u.cli.cl_import;
 
 	/* Wait a long time for enqueue - server may have to callback a
-	   lock from another client.  Server will evict the other client if it
-	   doesn't respond reasonably, and then give us the lock. */
+	 * lock from another client.  Server will evict the other client if it
+	 * doesn't respond reasonably, and then give us the lock.
+	 */
 	timeout = ldlm_get_enq_timeout(lock) * 2;
 
 	lwd.lwd_lock = lock;
@@ -258,7 +261,7 @@ noreproc:
 				       interrupted_completion_wait, &lwd);
 	}
 
-	if (imp != NULL) {
+	if (imp) {
 		spin_lock(&imp->imp_lock);
 		lwd.lwd_conn_cnt = imp->imp_conn_cnt;
 		spin_unlock(&imp->imp_lock);
@@ -296,7 +299,8 @@ static void failed_lock_cleanup(struct ldlm_namespace *ns,
 	    !(lock->l_flags & LDLM_FL_FAILED)) {
 		/* Make sure that this lock will not be found by raced
 		 * bl_ast and -EINVAL reply is sent to server anyways.
-		 * bug 17645 */
+		 * bug 17645
+		 */
 		lock->l_flags |= LDLM_FL_LOCAL_ONLY | LDLM_FL_FAILED |
 				 LDLM_FL_ATOMIC_CB | LDLM_FL_CBPENDING;
 		need_cancel = 1;
@@ -312,11 +316,13 @@ static void failed_lock_cleanup(struct ldlm_namespace *ns,
 	ldlm_lock_decref_internal(lock, mode);
 
 	/* XXX - HACK because we shouldn't call ldlm_lock_destroy()
-	 *       from llite/file.c/ll_file_flock(). */
+	 *       from llite/file.c/ll_file_flock().
+	 */
 	/* This code makes for the fact that we do not have blocking handler on
 	 * a client for flock locks. As such this is the place where we must
 	 * completely kill failed locks. (interrupted and those that
-	 * were waiting to be granted when server evicted us. */
+	 * were waiting to be granted when server evicted us.
+	 */
 	if (lock->l_resource->lr_type == LDLM_FLOCK) {
 		lock_res_and_lock(lock);
 		ldlm_resource_unlink_lock(lock);
@@ -331,7 +337,8 @@ static void failed_lock_cleanup(struct ldlm_namespace *ns,
  * Called after receiving reply from server.
  */
 int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
-			  ldlm_type_t type, __u8 with_policy, ldlm_mode_t mode,
+			  enum ldlm_type type, __u8 with_policy,
+			  enum ldlm_mode mode,
 			  __u64 *flags, void *lvb, __u32 lvb_len,
 			  struct lustre_handle *lockh, int rc)
 {
@@ -363,13 +370,13 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
 
 	/* Before we return, swab the reply */
 	reply = req_capsule_server_get(&req->rq_pill, &RMF_DLM_REP);
-	if (reply == NULL) {
+	if (!reply) {
 		rc = -EPROTO;
 		goto cleanup;
 	}
 
 	if (lvb_len != 0) {
-		LASSERT(lvb != NULL);
+		LASSERT(lvb);
 
 		size = req_capsule_get_size(&req->rq_pill, &RMF_DLM_LVB,
 					    RCL_SERVER);
@@ -401,7 +408,8 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
 	/* Key change rehash lock in per-export hash with new key */
 	if (exp->exp_lock_hash) {
 		/* In the function below, .hs_keycmp resolves to
-		 * ldlm_export_lock_keycmp() */
+		 * ldlm_export_lock_keycmp()
+		 */
 		/* coverity[overrun-buffer-val] */
 		cfs_hash_rehash_key(exp->exp_lock_hash,
 				    &lock->l_remote_handle,
@@ -415,7 +423,8 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
 	lock->l_flags |= ldlm_flags_from_wire(reply->lock_flags &
 					      LDLM_INHERIT_FLAGS);
 	/* move NO_TIMEOUT flag to the lock to force ldlm_lock_match()
-	 * to wait with no timeout as well */
+	 * to wait with no timeout as well
+	 */
 	lock->l_flags |= ldlm_flags_from_wire(reply->lock_flags &
 					      LDLM_FL_NO_TIMEOUT);
 	unlock_res_and_lock(lock);
@@ -425,7 +434,8 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
 
 	/* If enqueue returned a blocked lock but the completion handler has
 	 * already run, then it fixed up the resource and we don't need to do it
-	 * again. */
+	 * again.
+	 */
 	if ((*flags) & LDLM_FL_LOCK_CHANGED) {
 		int newmode = reply->lock_desc.l_req_mode;
 
@@ -445,7 +455,7 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
 
 			rc = ldlm_lock_change_resource(ns, lock,
 					&reply->lock_desc.l_resource.lr_name);
-			if (rc || lock->l_resource == NULL) {
+			if (rc || !lock->l_resource) {
 				rc = -ENOMEM;
 				goto cleanup;
 			}
@@ -467,7 +477,8 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
 	if ((*flags) & LDLM_FL_AST_SENT ||
 	    /* Cancel extent locks as soon as possible on a liblustre client,
 	     * because it cannot handle asynchronous ASTs robustly (see
-	     * bug 7311). */
+	     * bug 7311).
+	     */
 	    (LIBLUSTRE_CLIENT && type == LDLM_EXTENT)) {
 		lock_res_and_lock(lock);
 		lock->l_flags |= LDLM_FL_CBPENDING |  LDLM_FL_BL_AST;
@@ -476,12 +487,14 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
 	}
 
 	/* If the lock has already been granted by a completion AST, don't
-	 * clobber the LVB with an older one. */
+	 * clobber the LVB with an older one.
+	 */
 	if (lvb_len != 0) {
 		/* We must lock or a racing completion might update lvb without
 		 * letting us know and we'll clobber the correct value.
-		 * Cannot unlock after the check either, a that still leaves
-		 * a tiny window for completion to get in */
+		 * Cannot unlock after the check either, as that still leaves
+		 * a tiny window for completion to get in
+		 */
 		lock_res_and_lock(lock);
 		if (lock->l_req_mode != lock->l_granted_mode)
 			rc = ldlm_fill_lvb(lock, &req->rq_pill, RCL_SERVER,
@@ -495,7 +508,7 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
 
 	if (!is_replay) {
 		rc = ldlm_lock_enqueue(ns, &lock, NULL, flags);
-		if (lock->l_completion_ast != NULL) {
+		if (lock->l_completion_ast) {
 			int err = lock->l_completion_ast(lock, *flags, NULL);
 
 			if (!rc)
@@ -505,9 +518,10 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
 		}
 	}
 
-	if (lvb_len && lvb != NULL) {
+	if (lvb_len && lvb) {
 		/* Copy the LVB here, and not earlier, because the completion
-		 * AST (if any) can override what we got in the reply */
+		 * AST (if any) can override what we got in the reply
+		 */
 		memcpy(lvb, lock->l_lvb_data, lvb_len);
 	}
 
@@ -579,7 +593,7 @@ int ldlm_prep_elc_req(struct obd_export *exp, struct ptlrpc_request *req,
 	LIST_HEAD(head);
 	int rc;
 
-	if (cancels == NULL)
+	if (!cancels)
 		cancels = &head;
 	if (ns_connect_cancelset(ns)) {
 		/* Estimate the amount of available space in the request. */
@@ -593,7 +607,8 @@ int ldlm_prep_elc_req(struct obd_export *exp, struct ptlrpc_request *req,
 
 		/* Cancel LRU locks here _only_ if the server supports
 		 * EARLY_CANCEL. Otherwise we have to send extra CANCEL
-		 * RPC, which will make us slower. */
+		 * RPC, which will make us slower.
+		 */
 		if (avail > count)
 			count += ldlm_cancel_lru_local(ns, cancels, to_free,
 						       avail - count, 0, flags);
@@ -618,7 +633,8 @@ int ldlm_prep_elc_req(struct obd_export *exp, struct ptlrpc_request *req,
 			/* Skip first lock handler in ldlm_request_pack(),
 			 * this method will increment @lock_count according
 			 * to the lock handle amount actually written to
-			 * the buffer. */
+			 * the buffer.
+			 */
 			dlm->lock_count = canceloff;
 		}
 		/* Pack into the request @pack lock handles. */
@@ -665,15 +681,14 @@ int ldlm_cli_enqueue(struct obd_export *exp, struct ptlrpc_request **reqp,
 	int		    rc, err;
 	struct ptlrpc_request *req;
 
-	LASSERT(exp != NULL);
-
 	ns = exp->exp_obd->obd_namespace;
 
 	/* If we're replaying this lock, just check some invariants.
-	 * If we're creating a new lock, get everything all setup nice. */
+	 * If we're creating a new lock, get everything all setup nicely.
+	 */
 	if (is_replay) {
 		lock = ldlm_handle2lock_long(lockh, 0);
-		LASSERT(lock != NULL);
+		LASSERT(lock);
 		LDLM_DEBUG(lock, "client-side enqueue START");
 		LASSERT(exp == lock->l_conn_export);
 	} else {
@@ -685,13 +700,13 @@ int ldlm_cli_enqueue(struct obd_export *exp, struct ptlrpc_request **reqp,
 		lock = ldlm_lock_create(ns, res_id, einfo->ei_type,
 					einfo->ei_mode, &cbs, einfo->ei_cbdata,
 					lvb_len, lvb_type);
-		if (lock == NULL)
+		if (!lock)
 			return -ENOMEM;
 		/* for the local lock, add the reference */
 		ldlm_lock_addref_internal(lock, einfo->ei_mode);
 		ldlm_lock2handle(lock, lockh);
-		if (policy != NULL)
-				lock->l_policy_data = *policy;
+		if (policy)
+			lock->l_policy_data = *policy;
 
 		if (einfo->ei_type == LDLM_EXTENT)
 			lock->l_req_extent = policy->l_extent;
@@ -706,12 +721,12 @@ int ldlm_cli_enqueue(struct obd_export *exp, struct ptlrpc_request **reqp,
 
 	/* lock not sent to server yet */
 
-	if (reqp == NULL || *reqp == NULL) {
+	if (!reqp || !*reqp) {
 		req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
 						&RQF_LDLM_ENQUEUE,
 						LUSTRE_DLM_VERSION,
 						LDLM_ENQUEUE);
-		if (req == NULL) {
+		if (!req) {
 			failed_lock_cleanup(ns, lock, einfo->ei_mode);
 			LDLM_LOCK_RELEASE(lock);
 			return -ENOMEM;
@@ -754,7 +769,7 @@ int ldlm_cli_enqueue(struct obd_export *exp, struct ptlrpc_request **reqp,
 		     policy->l_extent.end == OBD_OBJECT_EOF));
 
 	if (async) {
-		LASSERT(reqp != NULL);
+		LASSERT(reqp);
 		return 0;
 	}
 
@@ -767,13 +782,14 @@ int ldlm_cli_enqueue(struct obd_export *exp, struct ptlrpc_request **reqp,
 				    lockh, rc);
 
 	/* If ldlm_cli_enqueue_fini did not find the lock, we need to free
-	 * one reference that we took */
+	 * one reference that we took
+	 */
 	if (err == -ENOLCK)
 		LDLM_LOCK_RELEASE(lock);
 	else
 		rc = err;
 
-	if (!req_passed_in && req != NULL) {
+	if (!req_passed_in && req) {
 		ptlrpc_req_finished(req);
 		if (reqp)
 			*reqp = NULL;
@@ -832,7 +848,7 @@ static void ldlm_cancel_pack(struct ptlrpc_request *req,
 	int max, packed = 0;
 
 	dlm = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ);
-	LASSERT(dlm != NULL);
+	LASSERT(dlm);
 
 	/* Check the room in the request buffer. */
 	max = req_capsule_get_size(&req->rq_pill, &RMF_DLM_REQ, RCL_CLIENT) -
@@ -843,7 +859,8 @@ static void ldlm_cancel_pack(struct ptlrpc_request *req,
 
 	/* XXX: it would be better to pack lock handles grouped by resource.
 	 * so that the server cancel would call filter_lvbo_update() less
-	 * frequently. */
+	 * frequently.
+	 */
 	list_for_each_entry(lock, head, l_bl_ast) {
 		if (!count--)
 			break;
@@ -858,17 +875,18 @@ static void ldlm_cancel_pack(struct ptlrpc_request *req,
 
 /**
  * Prepare and send a batched cancel RPC. It will include \a count lock
- * handles of locks given in \a cancels list. */
+ * handles of locks given in \a cancels list.
+ */
 static int ldlm_cli_cancel_req(struct obd_export *exp,
 			       struct list_head *cancels,
-			       int count, ldlm_cancel_flags_t flags)
+			       int count, enum ldlm_cancel_flags flags)
 {
 	struct ptlrpc_request *req = NULL;
 	struct obd_import *imp;
 	int free, sent = 0;
 	int rc = 0;
 
-	LASSERT(exp != NULL);
+	LASSERT(exp);
 	LASSERT(count > 0);
 
 	CFS_FAIL_TIMEOUT(OBD_FAIL_LDLM_PAUSE_CANCEL, cfs_fail_val);
@@ -883,14 +901,14 @@ static int ldlm_cli_cancel_req(struct obd_export *exp,
 
 	while (1) {
 		imp = class_exp2cliimp(exp);
-		if (imp == NULL || imp->imp_invalid) {
+		if (!imp || imp->imp_invalid) {
 			CDEBUG(D_DLMTRACE,
 			       "skipping cancel on invalid import %p\n", imp);
 			return count;
 		}
 
 		req = ptlrpc_request_alloc(imp, &RQF_LDLM_CANCEL);
-		if (req == NULL) {
+		if (!req) {
 			rc = -ENOMEM;
 			goto out;
 		}
@@ -946,7 +964,6 @@ out:
 
 static inline struct ldlm_pool *ldlm_imp2pl(struct obd_import *imp)
 {
-	LASSERT(imp != NULL);
 	return &imp->imp_obd->obd_namespace->ns_pool;
 }
 
@@ -971,7 +988,8 @@ int ldlm_cli_update_pool(struct ptlrpc_request *req)
 	 * is the case when server does not support LRU resize feature.
 	 * This is also possible in some recovery cases when server-side
 	 * reqs have no reference to the OBD export and thus access to
-	 * server-side namespace is not possible. */
+	 * server-side namespace is not possible.
+	 */
 	if (lustre_msg_get_slv(req->rq_repmsg) == 0 ||
 	    lustre_msg_get_limit(req->rq_repmsg) == 0) {
 		DEBUG_REQ(D_HA, req,
@@ -989,7 +1007,8 @@ int ldlm_cli_update_pool(struct ptlrpc_request *req)
 	 * to the pool thread. We do not access obd_namespace and pool
 	 * directly here as there is no reliable way to make sure that
 	 * they are still alive at cleanup time. Evil races are possible
-	 * which may cause Oops at that time. */
+	 * which may cause Oops at that time.
+	 */
 	write_lock(&obd->obd_pool_lock);
 	obd->obd_pool_slv = new_slv;
 	obd->obd_pool_limit = new_limit;
@@ -1005,7 +1024,7 @@ EXPORT_SYMBOL(ldlm_cli_update_pool);
  * Lock must not have any readers or writers by this time.
  */
 int ldlm_cli_cancel(struct lustre_handle *lockh,
-		    ldlm_cancel_flags_t cancel_flags)
+		    enum ldlm_cancel_flags cancel_flags)
 {
 	struct obd_export *exp;
 	int avail, flags, count = 1;
@@ -1016,7 +1035,7 @@ int ldlm_cli_cancel(struct lustre_handle *lockh,
 
 	/* concurrent cancels on the same handle can happen */
 	lock = ldlm_handle2lock_long(lockh, LDLM_FL_CANCELING);
-	if (lock == NULL) {
+	if (!lock) {
 		LDLM_DEBUG_NOLOCK("lock is already being destroyed\n");
 		return 0;
 	}
@@ -1028,7 +1047,8 @@ int ldlm_cli_cancel(struct lustre_handle *lockh,
 	}
 	/* Even if the lock is marked as LDLM_FL_BL_AST, this is a LDLM_CANCEL
 	 * RPC which goes to canceld portal, so we can cancel other LRU locks
-	 * here and send them all as one LDLM_CANCEL RPC. */
+	 * here and send them all as one LDLM_CANCEL RPC.
+	 */
 	LASSERT(list_empty(&lock->l_bl_ast));
 	list_add(&lock->l_bl_ast, &cancels);
 
@@ -1055,7 +1075,7 @@ EXPORT_SYMBOL(ldlm_cli_cancel);
  * Return the number of cancelled locks.
  */
 int ldlm_cli_cancel_list_local(struct list_head *cancels, int count,
-			       ldlm_cancel_flags_t flags)
+			       enum ldlm_cancel_flags flags)
 {
 	LIST_HEAD(head);
 	struct ldlm_lock *lock, *next;
@@ -1076,7 +1096,8 @@ int ldlm_cli_cancel_list_local(struct list_head *cancels, int count,
 		/* Until we have compound requests and can send LDLM_CANCEL
 		 * requests batched with generic RPCs, we need to send cancels
 		 * with the LDLM_FL_BL_AST flag in a separate RPC from
-		 * the one being generated now. */
+		 * the one being generated now.
+		 */
 		if (!(flags & LCF_BL_AST) && (rc == LDLM_FL_BL_AST)) {
 			LDLM_DEBUG(lock, "Cancel lock separately");
 			list_del_init(&lock->l_bl_ast);
@@ -1116,7 +1137,8 @@ static ldlm_policy_res_t ldlm_cancel_no_wait_policy(struct ldlm_namespace *ns,
 	lock_res_and_lock(lock);
 
 	/* don't check added & count since we want to process all locks
-	 * from unused list */
+	 * from unused list
+	 */
 	switch (lock->l_resource->lr_type) {
 	case LDLM_EXTENT:
 	case LDLM_IBITS:
@@ -1152,7 +1174,8 @@ static ldlm_policy_res_t ldlm_cancel_lrur_policy(struct ldlm_namespace *ns,
 	unsigned long la;
 
 	/* Stop LRU processing when we reach past @count or have checked all
-	 * locks in LRU. */
+	 * locks in LRU.
+	 */
 	if (count && added >= count)
 		return LDLM_POLICY_KEEP_LOCK;
 
@@ -1166,7 +1189,8 @@ static ldlm_policy_res_t ldlm_cancel_lrur_policy(struct ldlm_namespace *ns,
 	ldlm_pool_set_clv(pl, lv);
 
 	/* Stop when SLV is not yet come from server or lv is smaller than
-	 * it is. */
+	 * it is.
+	 */
 	return (slv == 0 || lv < slv) ?
 		LDLM_POLICY_KEEP_LOCK : LDLM_POLICY_CANCEL_LOCK;
 }
@@ -1186,7 +1210,8 @@ static ldlm_policy_res_t ldlm_cancel_passed_policy(struct ldlm_namespace *ns,
 						   int count)
 {
 	/* Stop LRU processing when we reach past @count or have checked all
-	 * locks in LRU. */
+	 * locks in LRU.
+	 */
 	return (added >= count) ?
 		LDLM_POLICY_KEEP_LOCK : LDLM_POLICY_CANCEL_LOCK;
 }
@@ -1227,7 +1252,8 @@ static ldlm_policy_res_t ldlm_cancel_default_policy(struct ldlm_namespace *ns,
 						    int count)
 {
 	/* Stop LRU processing when we reach past count or have checked all
-	 * locks in LRU. */
+	 * locks in LRU.
+	 */
 	return (added >= count) ?
 		LDLM_POLICY_KEEP_LOCK : LDLM_POLICY_CANCEL_LOCK;
 }
@@ -1307,7 +1333,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns,
 		count += unused - ns->ns_max_unused;
 
 	pf = ldlm_cancel_lru_policy(ns, flags);
-	LASSERT(pf != NULL);
+	LASSERT(pf);
 
 	while (!list_empty(&ns->ns_unused_list)) {
 		ldlm_policy_res_t result;
@@ -1331,7 +1357,8 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns,
 				continue;
 
 			/* Somebody is already doing CANCEL. No need for this
-			 * lock in LRU, do not traverse it again. */
+			 * lock in LRU, do not traverse it again.
+			 */
 			if (!(lock->l_flags & LDLM_FL_CANCELING))
 				break;
 
@@ -1380,7 +1407,8 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns,
 			/* Another thread is removing lock from LRU, or
 			 * somebody is already doing CANCEL, or there
 			 * is a blocking request which will send cancel
-			 * by itself, or the lock is no longer unused. */
+			 * by itself, or the lock is no longer unused.
+			 */
 			unlock_res_and_lock(lock);
 			lu_ref_del(&lock->l_reference,
 				   __func__, current);
@@ -1394,7 +1422,8 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns,
 		 * better send cancel notification to server, so that it
 		 * frees appropriate state. This might lead to a race
 		 * where while we are doing cancel here, server is also
-		 * silently cancelling this lock. */
+		 * silently cancelling this lock.
+		 */
 		lock->l_flags &= ~LDLM_FL_CANCEL_ON_BLOCK;
 
 		/* Setting the CBPENDING flag is a little misleading,
@@ -1402,7 +1431,8 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns,
 		 * CBPENDING is set, the lock can accumulate no more
 		 * readers/writers. Since readers and writers are
 		 * already zero here, ldlm_lock_decref() won't see
-		 * this flag and call l_blocking_ast */
+		 * this flag and call l_blocking_ast
+		 */
 		lock->l_flags |= LDLM_FL_CBPENDING | LDLM_FL_CANCELING;
 
 		/* We can't re-add to l_lru as it confuses the
@@ -1410,7 +1440,8 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns,
 		 * arrives after we drop lr_lock below. We use l_bl_ast
 		 * and can't use l_pending_chain as it is used both on
 		 * server and client nevertheless bug 5666 says it is
-		 * used only on server */
+		 * used only on server
+		 */
 		LASSERT(list_empty(&lock->l_bl_ast));
 		list_add(&lock->l_bl_ast, cancels);
 		unlock_res_and_lock(lock);
@@ -1425,7 +1456,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns,
 
 int ldlm_cancel_lru_local(struct ldlm_namespace *ns,
 			  struct list_head *cancels, int count, int max,
-			  ldlm_cancel_flags_t cancel_flags, int flags)
+			  enum ldlm_cancel_flags cancel_flags, int flags)
 {
 	int added;
 
@@ -1444,14 +1475,15 @@ int ldlm_cancel_lru_local(struct ldlm_namespace *ns,
  * callback will be performed in this function.
  */
 int ldlm_cancel_lru(struct ldlm_namespace *ns, int nr,
-		    ldlm_cancel_flags_t cancel_flags,
+		    enum ldlm_cancel_flags cancel_flags,
 		    int flags)
 {
 	LIST_HEAD(cancels);
 	int count, rc;
 
 	/* Just prepare the list of locks, do not actually cancel them yet.
-	 * Locks are cancelled later in a separate thread. */
+	 * Locks are cancelled later in a separate thread.
+	 */
 	count = ldlm_prepare_lru_list(ns, &cancels, nr, 0, flags);
 	rc = ldlm_bl_to_thread_list(ns, NULL, &cancels, count, cancel_flags);
 	if (rc == 0)
@@ -1468,15 +1500,16 @@ int ldlm_cancel_lru(struct ldlm_namespace *ns, int nr,
 int ldlm_cancel_resource_local(struct ldlm_resource *res,
 			       struct list_head *cancels,
 			       ldlm_policy_data_t *policy,
-			       ldlm_mode_t mode, __u64 lock_flags,
-			       ldlm_cancel_flags_t cancel_flags, void *opaque)
+			       enum ldlm_mode mode, __u64 lock_flags,
+			       enum ldlm_cancel_flags cancel_flags,
+			       void *opaque)
 {
 	struct ldlm_lock *lock;
 	int count = 0;
 
 	lock_res(res);
 	list_for_each_entry(lock, &res->lr_granted, l_res_link) {
-		if (opaque != NULL && lock->l_ast_data != opaque) {
+		if (opaque && lock->l_ast_data != opaque) {
 			LDLM_ERROR(lock, "data %p doesn't match opaque %p",
 				   lock->l_ast_data, opaque);
 			continue;
@@ -1486,7 +1519,8 @@ int ldlm_cancel_resource_local(struct ldlm_resource *res,
 			continue;
 
 		/* If somebody is already doing CANCEL, or blocking AST came,
-		 * skip this lock. */
+		 * skip this lock.
+		 */
 		if (lock->l_flags & LDLM_FL_BL_AST ||
 		    lock->l_flags & LDLM_FL_CANCELING)
 			continue;
@@ -1495,7 +1529,8 @@ int ldlm_cancel_resource_local(struct ldlm_resource *res,
 			continue;
 
 		/* If policy is given and this is IBITS lock, add to list only
-		 * those locks that match by policy. */
+		 * those locks that match by policy.
+		 */
 		if (policy && (lock->l_resource->lr_type == LDLM_IBITS) &&
 		    !(lock->l_policy_data.l_inodebits.bits &
 		      policy->l_inodebits.bits))
@@ -1527,7 +1562,8 @@ EXPORT_SYMBOL(ldlm_cancel_resource_local);
  * Destroy \a cancels at the end.
  */
 int ldlm_cli_cancel_list(struct list_head *cancels, int count,
-			 struct ptlrpc_request *req, ldlm_cancel_flags_t flags)
+			 struct ptlrpc_request *req,
+			 enum ldlm_cancel_flags flags)
 {
 	struct ldlm_lock *lock;
 	int res = 0;
@@ -1539,7 +1575,8 @@ int ldlm_cli_cancel_list(struct list_head *cancels, int count,
 	 * Usually it is enough to have just 1 RPC, but it is possible that
 	 * there are too many locks to be cancelled in LRU or on a resource.
 	 * It would also speed up the case when the server does not support
-	 * the feature. */
+	 * the feature.
+	 */
 	while (count > 0) {
 		LASSERT(!list_empty(cancels));
 		lock = list_entry(cancels->next, struct ldlm_lock,
@@ -1577,12 +1614,13 @@ EXPORT_SYMBOL(ldlm_cli_cancel_list);
  * Cancel all locks on a resource that have 0 readers/writers.
  *
  * If flags & LDLM_FL_LOCAL_ONLY, throw the locks away without trying
- * to notify the server. */
+ * to notify the server.
+ */
 int ldlm_cli_cancel_unused_resource(struct ldlm_namespace *ns,
 				    const struct ldlm_res_id *res_id,
 				    ldlm_policy_data_t *policy,
-				    ldlm_mode_t mode,
-				    ldlm_cancel_flags_t flags,
+				    enum ldlm_mode mode,
+				    enum ldlm_cancel_flags flags,
 				    void *opaque)
 {
 	struct ldlm_resource *res;
@@ -1591,7 +1629,7 @@ int ldlm_cli_cancel_unused_resource(struct ldlm_namespace *ns,
 	int rc;
 
 	res = ldlm_resource_get(ns, NULL, res_id, 0, 0);
-	if (res == NULL) {
+	if (!res) {
 		/* This is not a problem. */
 		CDEBUG(D_INFO, "No resource %llu\n", res_id->name[0]);
 		return 0;
@@ -1638,17 +1676,17 @@ static int ldlm_cli_hash_cancel_unused(struct cfs_hash *hs,
  * to notify the server. */
 int ldlm_cli_cancel_unused(struct ldlm_namespace *ns,
 			   const struct ldlm_res_id *res_id,
-			   ldlm_cancel_flags_t flags, void *opaque)
+			   enum ldlm_cancel_flags flags, void *opaque)
 {
 	struct ldlm_cli_cancel_arg arg = {
 		.lc_flags       = flags,
 		.lc_opaque      = opaque,
 	};
 
-	if (ns == NULL)
+	if (!ns)
 		return ELDLM_OK;
 
-	if (res_id != NULL) {
+	if (res_id) {
 		return ldlm_cli_cancel_unused_resource(ns, res_id, NULL,
 						       LCK_MINMODE, flags,
 						       opaque);
@@ -1743,13 +1781,13 @@ int ldlm_resource_iterate(struct ldlm_namespace *ns,
 	struct ldlm_resource *res;
 	int rc;
 
-	if (ns == NULL) {
+	if (!ns) {
 		CERROR("must pass in namespace\n");
 		LBUG();
 	}
 
 	res = ldlm_resource_get(ns, NULL, res_id, 0, 0);
-	if (res == NULL)
+	if (!res)
 		return 0;
 
 	LDLM_RESOURCE_ADDREF(res);
@@ -1796,7 +1834,7 @@ static int replay_lock_interpret(const struct lu_env *env,
 		goto out;
 
 	reply = req_capsule_server_get(&req->rq_pill, &RMF_DLM_REP);
-	if (reply == NULL) {
+	if (!reply) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -1815,7 +1853,8 @@ static int replay_lock_interpret(const struct lu_env *env,
 	exp = req->rq_export;
 	if (exp && exp->exp_lock_hash) {
 		/* In the function below, .hs_keycmp resolves to
-		 * ldlm_export_lock_keycmp() */
+		 * ldlm_export_lock_keycmp()
+		 */
 		/* coverity[overrun-buffer-val] */
 		cfs_hash_rehash_key(exp->exp_lock_hash,
 				    &lock->l_remote_handle,
@@ -1850,7 +1889,8 @@ static int replay_one_lock(struct obd_import *imp, struct ldlm_lock *lock)
 
 	/* If this is reply-less callback lock, we cannot replay it, since
 	 * server might have long dropped it, but notification of that event was
-	 * lost by network. (and server granted conflicting lock already) */
+	 * lost by network. (and server granted conflicting lock already)
+	 */
 	if (lock->l_flags & LDLM_FL_CANCEL_ON_BLOCK) {
 		LDLM_DEBUG(lock, "Not replaying reply-less lock:");
 		ldlm_lock_cancel(lock);
@@ -1882,7 +1922,7 @@ static int replay_one_lock(struct obd_import *imp, struct ldlm_lock *lock)
 
 	req = ptlrpc_request_alloc_pack(imp, &RQF_LDLM_ENQUEUE,
 					LUSTRE_DLM_VERSION, LDLM_ENQUEUE);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	/* We're part of recovery, so don't wait for it. */
@@ -1901,7 +1941,8 @@ static int replay_one_lock(struct obd_import *imp, struct ldlm_lock *lock)
 	/* notify the server we've replayed all requests.
 	 * also, we mark the request to be put on a dedicated
 	 * queue to be processed after all request replayes.
-	 * bug 6063 */
+	 * bug 6063
+	 */
 	lustre_msg_set_flags(req->rq_reqmsg, MSG_REQ_REPLAY_DONE);
 
 	LDLM_DEBUG(lock, "replaying lock:");
@@ -1936,7 +1977,8 @@ static void ldlm_cancel_unused_locks_for_replay(struct ldlm_namespace *ns)
 
 	/* We don't need to care whether or not LRU resize is enabled
 	 * because the LDLM_CANCEL_NO_WAIT policy doesn't use the
-	 * count parameter */
+	 * count parameter
+	 */
 	canceled = ldlm_cancel_lru_local(ns, &cancels, ns->ns_nr_unused, 0,
 					 LCF_LOCAL, LDLM_CANCEL_NO_WAIT);
 
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
index 0ae6100..03b9726 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
@@ -56,7 +56,8 @@ LIST_HEAD(ldlm_srv_namespace_list);
 struct mutex ldlm_cli_namespace_lock;
 /* Client Namespaces that have active resources in them.
  * Once all resources go away, ldlm_poold moves such namespaces to the
- * inactive list */
+ * inactive list
+ */
 LIST_HEAD(ldlm_cli_active_namespace_list);
 /* Client namespaces that don't have any locks in them */
 static LIST_HEAD(ldlm_cli_inactive_namespace_list);
@@ -66,7 +67,8 @@ static struct dentry *ldlm_ns_debugfs_dir;
 struct dentry *ldlm_svc_debugfs_dir;
 
 /* during debug dump certain amount of granted locks for one resource to avoid
- * DDOS. */
+ * DDOS.
+ */
 static unsigned int ldlm_dump_granted_max = 256;
 
 static ssize_t
@@ -275,7 +277,8 @@ static ssize_t lru_size_store(struct kobject *kobj, struct attribute *attr,
 		ldlm_cancel_lru(ns, 0, LCF_ASYNC, LDLM_CANCEL_PASSED);
 
 		/* Make sure that LRU resize was originally supported before
-		 * turning it on here. */
+		 * turning it on here.
+		 */
 		if (lru_resize &&
 		    (ns->ns_orig_connect_flags & OBD_CONNECT_LRU_RESIZE)) {
 			CDEBUG(D_DLMTRACE,
@@ -380,7 +383,7 @@ static void ldlm_namespace_debugfs_unregister(struct ldlm_namespace *ns)
 	else
 		ldebugfs_remove(&ns->ns_debugfs_entry);
 
-	if (ns->ns_stats != NULL)
+	if (ns->ns_stats)
 		lprocfs_free_stats(&ns->ns_stats);
 }
 
@@ -400,7 +403,7 @@ static int ldlm_namespace_sysfs_register(struct ldlm_namespace *ns)
 				   "%s", ldlm_ns_name(ns));
 
 	ns->ns_stats = lprocfs_alloc_stats(LDLM_NSS_LAST, 0);
-	if (ns->ns_stats == NULL) {
+	if (!ns->ns_stats) {
 		kobject_put(&ns->ns_kobj);
 		return -ENOMEM;
 	}
@@ -420,7 +423,7 @@ static int ldlm_namespace_debugfs_register(struct ldlm_namespace *ns)
 	} else {
 		ns_entry = debugfs_create_dir(ldlm_ns_name(ns),
 					      ldlm_ns_debugfs_dir);
-		if (ns_entry == NULL)
+		if (!ns_entry)
 			return -ENOMEM;
 		ns->ns_debugfs_entry = ns_entry;
 	}
@@ -554,7 +557,7 @@ static struct cfs_hash_ops ldlm_ns_fid_hash_ops = {
 };
 
 struct ldlm_ns_hash_def {
-	ldlm_ns_type_t  nsd_type;
+	enum ldlm_ns_type nsd_type;
 	/** hash bucket bits */
 	unsigned	nsd_bkt_bits;
 	/** hash bits */
@@ -621,8 +624,8 @@ static void ldlm_namespace_register(struct ldlm_namespace *ns,
  */
 struct ldlm_namespace *ldlm_namespace_new(struct obd_device *obd, char *name,
 					  ldlm_side_t client,
-					  ldlm_appetite_t apt,
-					  ldlm_ns_type_t ns_type)
+					  enum ldlm_appetite apt,
+					  enum ldlm_ns_type ns_type)
 {
 	struct ldlm_namespace *ns = NULL;
 	struct ldlm_ns_bucket *nsb;
@@ -631,7 +634,7 @@ struct ldlm_namespace *ldlm_namespace_new(struct obd_device *obd, char *name,
 	int		    idx;
 	int		    rc;
 
-	LASSERT(obd != NULL);
+	LASSERT(obd);
 
 	rc = ldlm_get_ref();
 	if (rc) {
@@ -664,7 +667,7 @@ struct ldlm_namespace *ldlm_namespace_new(struct obd_device *obd, char *name,
 					 CFS_HASH_BIGNAME |
 					 CFS_HASH_SPIN_BKTLOCK |
 					 CFS_HASH_NO_ITEMREF);
-	if (ns->ns_rs_hash == NULL)
+	if (!ns->ns_rs_hash)
 		goto out_ns;
 
 	cfs_hash_for_each_bucket(ns->ns_rs_hash, &bd, idx) {
@@ -749,7 +752,8 @@ static void cleanup_resource(struct ldlm_resource *res, struct list_head *q,
 		struct lustre_handle lockh;
 
 		/* First, we look for non-cleaned-yet lock
-		 * all cleaned locks are marked by CLEANED flag. */
+		 * all cleaned locks are marked by CLEANED flag.
+		 */
 		lock_res(res);
 		list_for_each(tmp, q) {
 			lock = list_entry(tmp, struct ldlm_lock,
@@ -763,13 +767,14 @@ static void cleanup_resource(struct ldlm_resource *res, struct list_head *q,
 			break;
 		}
 
-		if (lock == NULL) {
+		if (!lock) {
 			unlock_res(res);
 			break;
 		}
 
 		/* Set CBPENDING so nothing in the cancellation path
-		 * can match this lock. */
+		 * can match this lock.
+		 */
 		lock->l_flags |= LDLM_FL_CBPENDING;
 		lock->l_flags |= LDLM_FL_FAILED;
 		lock->l_flags |= flags;
@@ -782,7 +787,8 @@ static void cleanup_resource(struct ldlm_resource *res, struct list_head *q,
 			/* This is a little bit gross, but much better than the
 			 * alternative: pretend that we got a blocking AST from
 			 * the server, so that when the lock is decref'd, it
-			 * will go away ... */
+			 * will go away ...
+			 */
 			unlock_res(res);
 			LDLM_DEBUG(lock, "setting FL_LOCAL_ONLY");
 			if (lock->l_completion_ast)
@@ -837,7 +843,7 @@ static int ldlm_resource_complain(struct cfs_hash *hs, struct cfs_hash_bd *bd,
  */
 int ldlm_namespace_cleanup(struct ldlm_namespace *ns, __u64 flags)
 {
-	if (ns == NULL) {
+	if (!ns) {
 		CDEBUG(D_INFO, "NULL ns, skipping cleanup\n");
 		return ELDLM_OK;
 	}
@@ -873,7 +879,8 @@ force_wait:
 				  atomic_read(&ns->ns_bref) == 0, &lwi);
 
 		/* Forced cleanups should be able to reclaim all references,
-		 * so it's safe to wait forever... we can't leak locks... */
+		 * so it's safe to wait forever... we can't leak locks...
+		 */
 		if (force && rc == -ETIMEDOUT) {
 			LCONSOLE_ERROR("Forced cleanup waiting for %s namespace with %d resources in use, (rc=%d)\n",
 				       ldlm_ns_name(ns),
@@ -943,7 +950,8 @@ static void ldlm_namespace_unregister(struct ldlm_namespace *ns,
 	LASSERT(!list_empty(&ns->ns_list_chain));
 	/* Some asserts and possibly other parts of the code are still
 	 * using list_empty(&ns->ns_list_chain). This is why it is
-	 * important to use list_del_init() here. */
+	 * important to use list_del_init() here.
+	 */
 	list_del_init(&ns->ns_list_chain);
 	ldlm_namespace_nr_dec(client);
 	mutex_unlock(ldlm_namespace_lock(client));
@@ -963,7 +971,8 @@ void ldlm_namespace_free_post(struct ldlm_namespace *ns)
 	ldlm_namespace_unregister(ns, ns->ns_client);
 	/* Fini pool _before_ parent proc dir is removed. This is important as
 	 * ldlm_pool_fini() removes own proc dir which is child to @dir.
-	 * Removing it after @dir may cause oops. */
+	 * Removing it after @dir may cause oops.
+	 */
 	ldlm_pool_fini(&ns->ns_pool);
 
 	ldlm_namespace_debugfs_unregister(ns);
@@ -971,7 +980,8 @@ void ldlm_namespace_free_post(struct ldlm_namespace *ns)
 	cfs_hash_putref(ns->ns_rs_hash);
 	/* Namespace \a ns should be not on list at this time, otherwise
 	 * this will cause issues related to using freed \a ns in poold
-	 * thread. */
+	 * thread.
+	 */
 	LASSERT(list_empty(&ns->ns_list_chain));
 	kfree(ns);
 	ldlm_put_ref();
@@ -1032,7 +1042,7 @@ static struct ldlm_resource *ldlm_resource_new(void)
 	int idx;
 
 	res = kmem_cache_alloc(ldlm_resource_slab, GFP_NOFS | __GFP_ZERO);
-	if (res == NULL)
+	if (!res)
 		return NULL;
 
 	INIT_LIST_HEAD(&res->lr_granted);
@@ -1050,7 +1060,8 @@ static struct ldlm_resource *ldlm_resource_new(void)
 	lu_ref_init(&res->lr_reference);
 
 	/* The creator of the resource must unlock the mutex after LVB
-	 * initialization. */
+	 * initialization.
+	 */
 	mutex_init(&res->lr_lvb_mutex);
 	mutex_lock(&res->lr_lvb_mutex);
 
@@ -1065,7 +1076,8 @@ static struct ldlm_resource *ldlm_resource_new(void)
  */
 struct ldlm_resource *
 ldlm_resource_get(struct ldlm_namespace *ns, struct ldlm_resource *parent,
-		  const struct ldlm_res_id *name, ldlm_type_t type, int create)
+		  const struct ldlm_res_id *name, enum ldlm_type type,
+		  int create)
 {
 	struct hlist_node     *hnode;
 	struct ldlm_resource *res;
@@ -1073,14 +1085,13 @@ ldlm_resource_get(struct ldlm_namespace *ns, struct ldlm_resource *parent,
 	__u64		 version;
 	int		      ns_refcount = 0;
 
-	LASSERT(ns != NULL);
-	LASSERT(parent == NULL);
-	LASSERT(ns->ns_rs_hash != NULL);
+	LASSERT(!parent);
+	LASSERT(ns->ns_rs_hash);
 	LASSERT(name->name[0] != 0);
 
 	cfs_hash_bd_get_and_lock(ns->ns_rs_hash, (void *)name, &bd, 0);
 	hnode = cfs_hash_bd_lookup_locked(ns->ns_rs_hash, &bd, (void *)name);
-	if (hnode != NULL) {
+	if (hnode) {
 		cfs_hash_bd_unlock(ns->ns_rs_hash, &bd, 0);
 		res = hlist_entry(hnode, struct ldlm_resource, lr_hash);
 		/* Synchronize with regard to resource creation. */
@@ -1111,13 +1122,12 @@ ldlm_resource_get(struct ldlm_namespace *ns, struct ldlm_resource *parent,
 	res->lr_ns_bucket  = cfs_hash_bd_extra_get(ns->ns_rs_hash, &bd);
 	res->lr_name       = *name;
 	res->lr_type       = type;
-	res->lr_most_restr = LCK_NL;
 
 	cfs_hash_bd_lock(ns->ns_rs_hash, &bd, 1);
 	hnode = (version == cfs_hash_bd_version_get(&bd)) ?  NULL :
 		cfs_hash_bd_lookup_locked(ns->ns_rs_hash, &bd, (void *)name);
 
-	if (hnode != NULL) {
+	if (hnode) {
 		/* Someone won the race and already added the resource. */
 		cfs_hash_bd_unlock(ns->ns_rs_hash, &bd, 1);
 		/* Clean lu_ref for failed resource. */
@@ -1167,7 +1177,8 @@ ldlm_resource_get(struct ldlm_namespace *ns, struct ldlm_resource *parent,
 	/* Let's see if we happened to be the very first resource in this
 	 * namespace. If so, and this is a client namespace, we need to move
 	 * the namespace into the active namespaces list to be patrolled by
-	 * the ldlm_poold. */
+	 * the ldlm_poold.
+	 */
 	if (ns_refcount == 1) {
 		mutex_lock(ldlm_namespace_lock(LDLM_NAMESPACE_CLIENT));
 		ldlm_namespace_move_to_active_locked(ns, LDLM_NAMESPACE_CLIENT);
diff --git a/drivers/staging/lustre/lustre/libcfs/debug.c b/drivers/staging/lustre/lustre/libcfs/debug.c
index 6274558..c90e510 100644
--- a/drivers/staging/lustre/lustre/libcfs/debug.c
+++ b/drivers/staging/lustre/lustre/libcfs/debug.c
@@ -47,15 +47,15 @@
 static char debug_file_name[1024];
 
 unsigned int libcfs_subsystem_debug = ~0;
+EXPORT_SYMBOL(libcfs_subsystem_debug);
 module_param(libcfs_subsystem_debug, int, 0644);
 MODULE_PARM_DESC(libcfs_subsystem_debug, "Lustre kernel debug subsystem mask");
-EXPORT_SYMBOL(libcfs_subsystem_debug);
 
 unsigned int libcfs_debug = (D_CANTMASK |
 			     D_NETERROR | D_HA | D_CONFIG | D_IOCTL);
+EXPORT_SYMBOL(libcfs_debug);
 module_param(libcfs_debug, int, 0644);
 MODULE_PARM_DESC(libcfs_debug, "Lustre kernel debug mask");
-EXPORT_SYMBOL(libcfs_debug);
 
 static int libcfs_param_debug_mb_set(const char *val,
 				     const struct kernel_param *kp)
@@ -82,7 +82,8 @@ static int libcfs_param_debug_mb_set(const char *val,
 
 /* While debug_mb setting look like unsigned int, in fact
  * it needs quite a bunch of extra processing, so we define special
- * debugmb parameter type with corresponding methods to handle this case */
+ * debugmb parameter type with corresponding methods to handle this case
+ */
 static struct kernel_param_ops param_ops_debugmb = {
 	.set = libcfs_param_debug_mb_set,
 	.get = param_get_uint,
@@ -227,8 +228,7 @@ MODULE_PARM_DESC(libcfs_debug_file_path,
 
 int libcfs_panic_in_progress;
 
-/* libcfs_debug_token2mask() expects the returned
- * string in lower-case */
+/* libcfs_debug_token2mask() expects the returned string in lower-case */
 static const char *
 libcfs_debug_subsys2str(int subsys)
 {
@@ -290,8 +290,7 @@ libcfs_debug_subsys2str(int subsys)
 	}
 }
 
-/* libcfs_debug_token2mask() expects the returned
- * string in lower-case */
+/* libcfs_debug_token2mask() expects the returned string in lower-case */
 static const char *
 libcfs_debug_dbg2str(int debug)
 {
@@ -378,7 +377,7 @@ libcfs_debug_mask2str(char *str, int size, int mask, int is_subsys)
 				continue;
 
 			token = fn(i);
-			if (token == NULL)	      /* unused bit */
+			if (!token)	      /* unused bit */
 				continue;
 
 			if (len > 0) {		  /* separator? */
@@ -418,7 +417,7 @@ libcfs_debug_str2mask(int *mask, const char *str, int is_subsys)
 	/* Allow a number for backwards compatibility */
 
 	for (n = strlen(str); n > 0; n--)
-		if (!isspace(str[n-1]))
+		if (!isspace(str[n - 1]))
 			break;
 	matched = n;
 	t = sscanf(str, "%i%n", &m, &matched);
@@ -448,8 +447,7 @@ void libcfs_debug_dumplog_internal(void *arg)
 		snprintf(debug_file_name, sizeof(debug_file_name) - 1,
 			 "%s.%lld.%ld", libcfs_debug_file_path_arr,
 			 (s64)ktime_get_real_seconds(), (long_ptr_t)arg);
-		pr_alert("LustreError: dumping log to %s\n",
-		       debug_file_name);
+		pr_alert("LustreError: dumping log to %s\n", debug_file_name);
 		cfs_tracefile_dump_all_pages(debug_file_name);
 		libcfs_run_debug_log_upcall(debug_file_name);
 	}
@@ -471,7 +469,8 @@ void libcfs_debug_dumplog(void)
 
 	/* we're being careful to ensure that the kernel thread is
 	 * able to set our state to running as it exits before we
-	 * get to schedule() */
+	 * get to schedule()
+	 */
 	init_waitqueue_entry(&wait, current);
 	set_current_state(TASK_INTERRUPTIBLE);
 	add_wait_queue(&debug_ctlwq, &wait);
@@ -505,14 +504,15 @@ int libcfs_debug_init(unsigned long bufsize)
 		libcfs_console_min_delay = CDEBUG_DEFAULT_MIN_DELAY;
 	}
 
-	if (libcfs_debug_file_path != NULL) {
+	if (libcfs_debug_file_path) {
 		strlcpy(libcfs_debug_file_path_arr,
 			libcfs_debug_file_path,
 			sizeof(libcfs_debug_file_path_arr));
 	}
 
 	/* If libcfs_debug_mb is set to an invalid value or uninitialized
-	 * then just make the total buffers smp_num_cpus * TCD_MAX_PAGES */
+	 * then just make the total buffers smp_num_cpus * TCD_MAX_PAGES
+	 */
 	if (max > cfs_trace_max_debug_mb() || max < num_possible_cpus()) {
 		max = TCD_MAX_PAGES;
 	} else {
@@ -542,8 +542,7 @@ int libcfs_debug_clear_buffer(void)
 	return 0;
 }
 
-/* Debug markers, although printed by S_LNET
- * should not be be marked as such. */
+/* Debug markers, although printed by S_LNET should not be be marked as such. */
 #undef DEBUG_SUBSYSTEM
 #define DEBUG_SUBSYSTEM S_UNDEFINED
 int libcfs_debug_mark_buffer(const char *text)
diff --git a/drivers/staging/lustre/lustre/libcfs/fail.c b/drivers/staging/lustre/lustre/libcfs/fail.c
index 2783143..dadaf76 100644
--- a/drivers/staging/lustre/lustre/libcfs/fail.c
+++ b/drivers/staging/lustre/lustre/libcfs/fail.c
@@ -97,7 +97,8 @@ int __cfs_fail_check_set(__u32 id, __u32 value, int set)
 	/* Lost race to set CFS_FAILED_BIT. */
 	if (test_and_set_bit(CFS_FAILED_BIT, &cfs_fail_loc)) {
 		/* If CFS_FAIL_ONCE is valid, only one process can fail,
-		 * otherwise multi-process can fail at the same time. */
+		 * otherwise multi-process can fail at the same time.
+		 */
 		if (cfs_fail_loc & CFS_FAIL_ONCE)
 			return 0;
 	}
diff --git a/drivers/staging/lustre/lustre/libcfs/hash.c b/drivers/staging/lustre/lustre/libcfs/hash.c
index 4d50510..f60feb3 100644
--- a/drivers/staging/lustre/lustre/libcfs/hash.c
+++ b/drivers/staging/lustre/lustre/libcfs/hash.c
@@ -355,7 +355,7 @@ cfs_hash_dh_hnode_add(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 
 	dh = container_of(cfs_hash_dh_hhead(hs, bd),
 			  struct cfs_hash_dhead, dh_head);
-	if (dh->dh_tail != NULL) /* not empty */
+	if (dh->dh_tail) /* not empty */
 		hlist_add_behind(hnode, dh->dh_tail);
 	else /* empty list */
 		hlist_add_head(hnode, &dh->dh_head);
@@ -371,7 +371,7 @@ cfs_hash_dh_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 
 	dh = container_of(cfs_hash_dh_hhead(hs, bd),
 			  struct cfs_hash_dhead, dh_head);
-	if (hnd->next == NULL) { /* it's the tail */
+	if (!hnd->next) { /* it's the tail */
 		dh->dh_tail = (hnd->pprev == &dh->dh_head.first) ? NULL :
 			      container_of(hnd->pprev, struct hlist_node, next);
 	}
@@ -412,7 +412,7 @@ cfs_hash_dd_hnode_add(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 
 	dh = container_of(cfs_hash_dd_hhead(hs, bd),
 			  struct cfs_hash_dhead_dep, dd_head);
-	if (dh->dd_tail != NULL) /* not empty */
+	if (dh->dd_tail) /* not empty */
 		hlist_add_behind(hnode, dh->dd_tail);
 	else /* empty list */
 		hlist_add_head(hnode, &dh->dd_head);
@@ -428,7 +428,7 @@ cfs_hash_dd_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 
 	dh = container_of(cfs_hash_dd_hhead(hs, bd),
 			  struct cfs_hash_dhead_dep, dd_head);
-	if (hnd->next == NULL) { /* it's the tail */
+	if (!hnd->next) { /* it's the tail */
 		dh->dd_tail = (hnd->pprev == &dh->dd_head.first) ? NULL :
 			      container_of(hnd->pprev, struct hlist_node, next);
 	}
@@ -492,7 +492,7 @@ void
 cfs_hash_bd_get(struct cfs_hash *hs, const void *key, struct cfs_hash_bd *bd)
 {
 	/* NB: caller should hold hs->hs_rwlock if REHASH is set */
-	if (likely(hs->hs_rehash_buckets == NULL)) {
+	if (likely(!hs->hs_rehash_buckets)) {
 		cfs_hash_bd_from_key(hs, hs->hs_buckets,
 				     hs->hs_cur_bits, key, bd);
 	} else {
@@ -579,7 +579,8 @@ cfs_hash_bd_move_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd_old,
 		return;
 
 	/* use cfs_hash_bd_hnode_add/del, to avoid atomic & refcount ops
-	 * in cfs_hash_bd_del/add_locked */
+	 * in cfs_hash_bd_del/add_locked
+	 */
 	hs->hs_hops->hop_hnode_del(hs, bd_old, hnode);
 	rc = hs->hs_hops->hop_hnode_add(hs, bd_new, hnode);
 	cfs_hash_bd_dep_record(hs, bd_new, rc);
@@ -635,13 +636,14 @@ cfs_hash_bd_lookup_intent(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 	int intent_add = (intent & CFS_HS_LOOKUP_MASK_ADD) != 0;
 
 	/* with this function, we can avoid a lot of useless refcount ops,
-	 * which are expensive atomic operations most time. */
+	 * which are expensive atomic operations most time.
+	 */
 	match = intent_add ? NULL : hnode;
 	hlist_for_each(ehnode, hhead) {
 		if (!cfs_hash_keycmp(hs, key, ehnode))
 			continue;
 
-		if (match != NULL && match != ehnode) /* can't match */
+		if (match && match != ehnode) /* can't match */
 			continue;
 
 		/* match and ... */
@@ -659,7 +661,7 @@ cfs_hash_bd_lookup_intent(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 	if (!intent_add)
 		return NULL;
 
-	LASSERT(hnode != NULL);
+	LASSERT(hnode);
 	cfs_hash_bd_add_locked(hs, bd, hnode);
 	return hnode;
 }
@@ -698,8 +700,7 @@ cfs_hash_multi_bd_lock(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 		if (prev == bds[i].bd_bucket)
 			continue;
 
-		LASSERT(prev == NULL ||
-			prev->hsb_index < bds[i].bd_bucket->hsb_index);
+		LASSERT(!prev || prev->hsb_index < bds[i].bd_bucket->hsb_index);
 		cfs_hash_bd_lock(hs, &bds[i], excl);
 		prev = bds[i].bd_bucket;
 	}
@@ -730,7 +731,7 @@ cfs_hash_multi_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 	cfs_hash_for_each_bd(bds, n, i) {
 		ehnode = cfs_hash_bd_lookup_intent(hs, &bds[i], key, NULL,
 						   CFS_HS_LOOKUP_IT_FIND);
-		if (ehnode != NULL)
+		if (ehnode)
 			return ehnode;
 	}
 	return NULL;
@@ -745,13 +746,13 @@ cfs_hash_multi_bd_findadd_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 	int intent;
 	unsigned i;
 
-	LASSERT(hnode != NULL);
+	LASSERT(hnode);
 	intent = (!noref * CFS_HS_LOOKUP_MASK_REF) | CFS_HS_LOOKUP_IT_PEEK;
 
 	cfs_hash_for_each_bd(bds, n, i) {
 		ehnode = cfs_hash_bd_lookup_intent(hs, &bds[i], key,
 						   NULL, intent);
-		if (ehnode != NULL)
+		if (ehnode)
 			return ehnode;
 	}
 
@@ -778,7 +779,7 @@ cfs_hash_multi_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 	cfs_hash_for_each_bd(bds, n, i) {
 		ehnode = cfs_hash_bd_lookup_intent(hs, &bds[i], key, hnode,
 						   CFS_HS_LOOKUP_IT_FINDDEL);
-		if (ehnode != NULL)
+		if (ehnode)
 			return ehnode;
 	}
 	return NULL;
@@ -789,26 +790,20 @@ cfs_hash_bd_order(struct cfs_hash_bd *bd1, struct cfs_hash_bd *bd2)
 {
 	int rc;
 
-	if (bd2->bd_bucket == NULL)
+	if (!bd2->bd_bucket)
 		return;
 
-	if (bd1->bd_bucket == NULL) {
+	if (!bd1->bd_bucket) {
 		*bd1 = *bd2;
 		bd2->bd_bucket = NULL;
 		return;
 	}
 
 	rc = cfs_hash_bd_compare(bd1, bd2);
-	if (rc == 0) {
+	if (!rc)
 		bd2->bd_bucket = NULL;
-
-	} else if (rc > 0) { /* swab bd1 and bd2 */
-		struct cfs_hash_bd tmp;
-
-		tmp = *bd2;
-		*bd2 = *bd1;
-		*bd1 = tmp;
-	}
+	else if (rc > 0)
+		swap(*bd1, *bd2); /* swap bd1 and bd2 */
 }
 
 void
@@ -818,7 +813,7 @@ cfs_hash_dual_bd_get(struct cfs_hash *hs, const void *key,
 	/* NB: caller should hold hs_lock.rw if REHASH is set */
 	cfs_hash_bd_from_key(hs, hs->hs_buckets,
 			     hs->hs_cur_bits, key, &bds[0]);
-	if (likely(hs->hs_rehash_buckets == NULL)) {
+	if (likely(!hs->hs_rehash_buckets)) {
 		/* no rehash or not rehashing */
 		bds[1].bd_bucket = NULL;
 		return;
@@ -873,7 +868,7 @@ cfs_hash_buckets_free(struct cfs_hash_bucket **buckets,
 	int i;
 
 	for (i = prev_size; i < size; i++) {
-		if (buckets[i] != NULL)
+		if (buckets[i])
 			LIBCFS_FREE(buckets[i], bkt_size);
 	}
 
@@ -892,16 +887,16 @@ cfs_hash_buckets_realloc(struct cfs_hash *hs, struct cfs_hash_bucket **old_bkts,
 	struct cfs_hash_bucket **new_bkts;
 	int i;
 
-	LASSERT(old_size == 0 || old_bkts != NULL);
+	LASSERT(old_size == 0 || old_bkts);
 
-	if (old_bkts != NULL && old_size == new_size)
+	if (old_bkts && old_size == new_size)
 		return old_bkts;
 
 	LIBCFS_ALLOC(new_bkts, sizeof(new_bkts[0]) * new_size);
-	if (new_bkts == NULL)
+	if (!new_bkts)
 		return NULL;
 
-	if (old_bkts != NULL) {
+	if (old_bkts) {
 		memcpy(new_bkts, old_bkts,
 		       min(old_size, new_size) * sizeof(*old_bkts));
 	}
@@ -911,7 +906,7 @@ cfs_hash_buckets_realloc(struct cfs_hash *hs, struct cfs_hash_bucket **old_bkts,
 		struct cfs_hash_bd bd;
 
 		LIBCFS_ALLOC(new_bkts[i], cfs_hash_bkt_size(hs));
-		if (new_bkts[i] == NULL) {
+		if (!new_bkts[i]) {
 			cfs_hash_buckets_free(new_bkts, cfs_hash_bkt_size(hs),
 					      old_size, new_size);
 			return NULL;
@@ -1011,14 +1006,13 @@ cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
 
 	CLASSERT(CFS_HASH_THETA_BITS < 15);
 
-	LASSERT(name != NULL);
-	LASSERT(ops != NULL);
+	LASSERT(name);
 	LASSERT(ops->hs_key);
 	LASSERT(ops->hs_hash);
 	LASSERT(ops->hs_object);
 	LASSERT(ops->hs_keycmp);
-	LASSERT(ops->hs_get != NULL);
-	LASSERT(ops->hs_put_locked != NULL);
+	LASSERT(ops->hs_get);
+	LASSERT(ops->hs_put_locked);
 
 	if ((flags & CFS_HASH_REHASH) != 0)
 		flags |= CFS_HASH_COUNTER; /* must have counter */
@@ -1029,13 +1023,12 @@ cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
 	LASSERT(ergo((flags & CFS_HASH_REHASH) == 0, cur_bits == max_bits));
 	LASSERT(ergo((flags & CFS_HASH_REHASH) != 0,
 		     (flags & CFS_HASH_NO_LOCK) == 0));
-	LASSERT(ergo((flags & CFS_HASH_REHASH_KEY) != 0,
-		      ops->hs_keycpy != NULL));
+	LASSERT(ergo((flags & CFS_HASH_REHASH_KEY) != 0, ops->hs_keycpy));
 
 	len = (flags & CFS_HASH_BIGNAME) == 0 ?
 	      CFS_HASH_NAME_LEN : CFS_HASH_BIGNAME_LEN;
 	LIBCFS_ALLOC(hs, offsetof(struct cfs_hash, hs_name[len]));
-	if (hs == NULL)
+	if (!hs)
 		return NULL;
 
 	strlcpy(hs->hs_name, name, len);
@@ -1063,7 +1056,7 @@ cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
 
 	hs->hs_buckets = cfs_hash_buckets_realloc(hs, NULL, 0,
 						  CFS_HASH_NBKT(hs));
-	if (hs->hs_buckets != NULL)
+	if (hs->hs_buckets)
 		return hs;
 
 	LIBCFS_FREE(hs, offsetof(struct cfs_hash, hs_name[len]));
@@ -1082,7 +1075,7 @@ cfs_hash_destroy(struct cfs_hash *hs)
 	struct cfs_hash_bd bd;
 	int i;
 
-	LASSERT(hs != NULL);
+	LASSERT(hs);
 	LASSERT(!cfs_hash_is_exiting(hs) &&
 		!cfs_hash_is_iterating(hs));
 
@@ -1096,13 +1089,12 @@ cfs_hash_destroy(struct cfs_hash *hs)
 
 	cfs_hash_depth_wi_cancel(hs);
 	/* rehash should be done/canceled */
-	LASSERT(hs->hs_buckets != NULL &&
-		hs->hs_rehash_buckets == NULL);
+	LASSERT(hs->hs_buckets && !hs->hs_rehash_buckets);
 
 	cfs_hash_for_each_bucket(hs, &bd, i) {
 		struct hlist_head *hhead;
 
-		LASSERT(bd.bd_bucket != NULL);
+		LASSERT(bd.bd_bucket);
 		/* no need to take this lock, just for consistent code */
 		cfs_hash_bd_lock(hs, &bd, 1);
 
@@ -1113,7 +1105,8 @@ cfs_hash_destroy(struct cfs_hash *hs)
 					 hs->hs_name, bd.bd_bucket->hsb_index,
 					 bd.bd_offset, bd.bd_bucket->hsb_count);
 				/* can't assert key valicate, because we
-				 * can interrupt rehash */
+				 * can interrupt rehash
+				 */
 				cfs_hash_bd_del_locked(hs, &bd, hnode);
 				cfs_hash_exit(hs, hnode);
 			}
@@ -1164,7 +1157,8 @@ cfs_hash_rehash_bits(struct cfs_hash *hs)
 		return -EAGAIN;
 
 	/* XXX: need to handle case with max_theta != 2.0
-	 *      and the case with min_theta != 0.5 */
+	 *      and the case with min_theta != 0.5
+	 */
 	if ((hs->hs_cur_bits < hs->hs_max_bits) &&
 	    (__cfs_hash_theta(hs) > hs->hs_max_theta))
 		return hs->hs_cur_bits + 1;
@@ -1293,8 +1287,8 @@ cfs_hash_del(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
 	cfs_hash_dual_bd_get_and_lock(hs, key, bds, 1);
 
 	/* NB: do nothing if @hnode is not in hash table */
-	if (hnode == NULL || !hlist_unhashed(hnode)) {
-		if (bds[1].bd_bucket == NULL && hnode != NULL) {
+	if (!hnode || !hlist_unhashed(hnode)) {
+		if (!bds[1].bd_bucket && hnode) {
 			cfs_hash_bd_del_locked(hs, &bds[0], hnode);
 		} else {
 			hnode = cfs_hash_dual_bd_finddel_locked(hs, bds,
@@ -1302,7 +1296,7 @@ cfs_hash_del(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
 		}
 	}
 
-	if (hnode != NULL) {
+	if (hnode) {
 		obj  = cfs_hash_object(hs, hnode);
 		bits = cfs_hash_rehash_bits(hs);
 	}
@@ -1348,7 +1342,7 @@ cfs_hash_lookup(struct cfs_hash *hs, const void *key)
 	cfs_hash_dual_bd_get_and_lock(hs, key, bds, 0);
 
 	hnode = cfs_hash_dual_bd_lookup_locked(hs, bds, key);
-	if (hnode != NULL)
+	if (hnode)
 		obj = cfs_hash_object(hs, hnode);
 
 	cfs_hash_dual_bd_unlock(hs, bds, 0);
@@ -1378,7 +1372,8 @@ cfs_hash_for_each_enter(struct cfs_hash *hs)
 	/* NB: iteration is mostly called by service thread,
 	 * we tend to cancel pending rehash-request, instead of
 	 * blocking service thread, we will relaunch rehash request
-	 * after iteration */
+	 * after iteration
+	 */
 	if (cfs_hash_is_rehashing(hs))
 		cfs_hash_rehash_cancel_locked(hs);
 	cfs_hash_unlock(hs, 1);
@@ -1436,7 +1431,7 @@ cfs_hash_for_each_tight(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
 		struct hlist_head *hhead;
 
 		cfs_hash_bd_lock(hs, &bd, excl);
-		if (func == NULL) { /* only glimpse size */
+		if (!func) { /* only glimpse size */
 			count += bd.bd_bucket->hsb_count;
 			cfs_hash_bd_unlock(hs, &bd, excl);
 			continue;
@@ -1574,7 +1569,7 @@ cfs_hash_for_each_relax(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
 
 	stop_on_change = cfs_hash_with_rehash_key(hs) ||
 			 !cfs_hash_with_no_itemref(hs) ||
-			 hs->hs_ops->hs_put_locked == NULL;
+			 !hs->hs_ops->hs_put_locked;
 	cfs_hash_lock(hs, 0);
 	LASSERT(!cfs_hash_is_rehashing(hs));
 
@@ -1585,7 +1580,7 @@ cfs_hash_for_each_relax(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
 		version = cfs_hash_bd_version_get(&bd);
 
 		cfs_hash_bd_for_each_hlist(hs, &bd, hhead) {
-			for (hnode = hhead->first; hnode != NULL;) {
+			for (hnode = hhead->first; hnode;) {
 				cfs_hash_bucket_validate(hs, &bd, hnode);
 				cfs_hash_get(hs, hnode);
 				cfs_hash_bd_unlock(hs, &bd, 0);
@@ -1634,9 +1629,8 @@ cfs_hash_for_each_nolock(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
 	    !cfs_hash_with_no_itemref(hs))
 		return -EOPNOTSUPP;
 
-	if (hs->hs_ops->hs_get == NULL ||
-	    (hs->hs_ops->hs_put == NULL &&
-	     hs->hs_ops->hs_put_locked == NULL))
+	if (!hs->hs_ops->hs_get ||
+	    (!hs->hs_ops->hs_put && !hs->hs_ops->hs_put_locked))
 		return -EOPNOTSUPP;
 
 	cfs_hash_for_each_enter(hs);
@@ -1667,9 +1661,8 @@ cfs_hash_for_each_empty(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
 	if (cfs_hash_with_no_lock(hs))
 		return -EOPNOTSUPP;
 
-	if (hs->hs_ops->hs_get == NULL ||
-	    (hs->hs_ops->hs_put == NULL &&
-	     hs->hs_ops->hs_put_locked == NULL))
+	if (!hs->hs_ops->hs_get ||
+	    (!hs->hs_ops->hs_put && !hs->hs_ops->hs_put_locked))
 		return -EOPNOTSUPP;
 
 	cfs_hash_for_each_enter(hs);
@@ -1708,7 +1701,6 @@ out:
 	cfs_hash_unlock(hs, 0);
 	cfs_hash_for_each_exit(hs);
 }
-
 EXPORT_SYMBOL(cfs_hash_hlist_for_each);
 
 /*
@@ -1837,7 +1829,7 @@ cfs_hash_rehash_bd(struct cfs_hash *hs, struct cfs_hash_bd *old)
 	cfs_hash_bd_for_each_hlist(hs, old, hhead) {
 		hlist_for_each_safe(hnode, pos, hhead) {
 			key = cfs_hash_key(hs, hnode);
-			LASSERT(key != NULL);
+			LASSERT(key);
 			/* Validate hnode is in the correct bucket. */
 			cfs_hash_bucket_validate(hs, old, hnode);
 			/*
@@ -1867,7 +1859,7 @@ cfs_hash_rehash_worker(cfs_workitem_t *wi)
 	int rc = 0;
 	int i;
 
-	LASSERT(hs != NULL && cfs_hash_with_rehash(hs));
+	LASSERT(hs && cfs_hash_with_rehash(hs));
 
 	cfs_hash_lock(hs, 0);
 	LASSERT(cfs_hash_is_rehashing(hs));
@@ -1884,7 +1876,7 @@ cfs_hash_rehash_worker(cfs_workitem_t *wi)
 	bkts = cfs_hash_buckets_realloc(hs, hs->hs_buckets,
 					old_size, new_size);
 	cfs_hash_lock(hs, 1);
-	if (bkts == NULL) {
+	if (!bkts) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1903,7 +1895,7 @@ cfs_hash_rehash_worker(cfs_workitem_t *wi)
 		goto out;
 	}
 
-	LASSERT(hs->hs_rehash_buckets == NULL);
+	LASSERT(!hs->hs_rehash_buckets);
 	hs->hs_rehash_buckets = bkts;
 
 	rc = 0;
@@ -1946,7 +1938,7 @@ out:
 	bsize = cfs_hash_bkt_size(hs);
 	cfs_hash_unlock(hs, 1);
 	/* can't refer to @hs anymore because it could be destroyed */
-	if (bkts != NULL)
+	if (bkts)
 		cfs_hash_buckets_free(bkts, bsize, new_size, old_size);
 	if (rc != 0)
 		CDEBUG(D_INFO, "early quit of rehashing: %d\n", rc);
@@ -1987,14 +1979,15 @@ void cfs_hash_rehash_key(struct cfs_hash *hs, const void *old_key,
 	cfs_hash_bd_order(&bds[0], &bds[1]);
 
 	cfs_hash_multi_bd_lock(hs, bds, 3, 1);
-	if (likely(old_bds[1].bd_bucket == NULL)) {
+	if (likely(!old_bds[1].bd_bucket)) {
 		cfs_hash_bd_move_locked(hs, &old_bds[0], &new_bd, hnode);
 	} else {
 		cfs_hash_dual_bd_finddel_locked(hs, old_bds, old_key, hnode);
 		cfs_hash_bd_add_locked(hs, &new_bd, hnode);
 	}
 	/* overwrite key inside locks, otherwise may screw up with
-	 * other operations, i.e: rehash */
+	 * other operations, i.e: rehash
+	 */
 	cfs_hash_keycpy(hs, hnode, new_key);
 
 	cfs_hash_multi_bd_unlock(hs, bds, 3, 1);
@@ -2013,7 +2006,7 @@ static struct cfs_hash_bucket **
 cfs_hash_full_bkts(struct cfs_hash *hs)
 {
 	/* NB: caller should hold hs->hs_rwlock if REHASH is set */
-	if (hs->hs_rehash_buckets == NULL)
+	if (!hs->hs_rehash_buckets)
 		return hs->hs_buckets;
 
 	LASSERT(hs->hs_rehash_bits != 0);
@@ -2025,7 +2018,7 @@ static unsigned int
 cfs_hash_full_nbkt(struct cfs_hash *hs)
 {
 	/* NB: caller should hold hs->hs_rwlock if REHASH is set */
-	if (hs->hs_rehash_buckets == NULL)
+	if (!hs->hs_rehash_buckets)
 		return CFS_HASH_NBKT(hs);
 
 	LASSERT(hs->hs_rehash_bits != 0);
@@ -2046,15 +2039,15 @@ void cfs_hash_debug_str(struct cfs_hash *hs, struct seq_file *m)
 	theta = __cfs_hash_theta(hs);
 
 	seq_printf(m, "%-*s %5d %5d %5d %d.%03d %d.%03d %d.%03d  0x%02x %6d ",
-		      CFS_HASH_BIGNAME_LEN, hs->hs_name,
-		      1 << hs->hs_cur_bits, 1 << hs->hs_min_bits,
-		      1 << hs->hs_max_bits,
-		      __cfs_hash_theta_int(theta), __cfs_hash_theta_frac(theta),
-		      __cfs_hash_theta_int(hs->hs_min_theta),
-		      __cfs_hash_theta_frac(hs->hs_min_theta),
-		      __cfs_hash_theta_int(hs->hs_max_theta),
-		      __cfs_hash_theta_frac(hs->hs_max_theta),
-		      hs->hs_flags, hs->hs_rehash_count);
+		   CFS_HASH_BIGNAME_LEN, hs->hs_name,
+		   1 << hs->hs_cur_bits, 1 << hs->hs_min_bits,
+		   1 << hs->hs_max_bits,
+		   __cfs_hash_theta_int(theta), __cfs_hash_theta_frac(theta),
+		   __cfs_hash_theta_int(hs->hs_min_theta),
+		   __cfs_hash_theta_frac(hs->hs_min_theta),
+		   __cfs_hash_theta_int(hs->hs_max_theta),
+		   __cfs_hash_theta_frac(hs->hs_max_theta),
+		   hs->hs_flags, hs->hs_rehash_count);
 
 	/*
 	 * The distribution is a summary of the chained hash depth in
diff --git a/drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c b/drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c
index ba97c79..33352af 100644
--- a/drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c
+++ b/drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c
@@ -13,11 +13,6 @@
  * General Public License version 2 for more details (a copy is included
  * in the LICENSE file that accompanied this code).
  *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
  * GPL HEADER END
  */
 /*
@@ -56,7 +51,7 @@ cfs_cpt_table_alloc(unsigned int ncpt)
 	}
 
 	LIBCFS_ALLOC(cptab, sizeof(*cptab));
-	if (cptab != NULL) {
+	if (cptab) {
 		cptab->ctb_version = CFS_CPU_VERSION_MAGIC;
 		node_set(0, cptab->ctb_nodemask);
 		cptab->ctb_nparts  = ncpt;
@@ -215,7 +210,7 @@ EXPORT_SYMBOL(cfs_cpt_bind);
 void
 cfs_cpu_fini(void)
 {
-	if (cfs_cpt_table != NULL) {
+	if (cfs_cpt_table) {
 		cfs_cpt_table_free(cfs_cpt_table);
 		cfs_cpt_table = NULL;
 	}
@@ -226,7 +221,7 @@ cfs_cpu_init(void)
 {
 	cfs_cpt_table = cfs_cpt_table_alloc(1);
 
-	return cfs_cpt_table != NULL ? 0 : -1;
+	return cfs_cpt_table ? 0 : -1;
 }
 
 #endif /* HAVE_LIBCFS_CPT */
diff --git a/drivers/staging/lustre/lustre/libcfs/libcfs_lock.c b/drivers/staging/lustre/lustre/libcfs/libcfs_lock.c
index 32db788..2de9eea 100644
--- a/drivers/staging/lustre/lustre/libcfs/libcfs_lock.c
+++ b/drivers/staging/lustre/lustre/libcfs/libcfs_lock.c
@@ -13,11 +13,6 @@
  * General Public License version 2 for more details (a copy is included
  * in the LICENSE file that accompanied this code).
  *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
  * GPL HEADER END
  */
 /* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
@@ -38,7 +33,7 @@
 void
 cfs_percpt_lock_free(struct cfs_percpt_lock *pcl)
 {
-	LASSERT(pcl->pcl_locks != NULL);
+	LASSERT(pcl->pcl_locks);
 	LASSERT(!pcl->pcl_locked);
 
 	cfs_percpt_free(pcl->pcl_locks);
@@ -115,7 +110,8 @@ cfs_percpt_lock(struct cfs_percpt_lock *pcl, int index)
 		if (i == 0) {
 			LASSERT(!pcl->pcl_locked);
 			/* nobody should take private lock after this
-			 * so I wouldn't starve for too long time */
+			 * so I wouldn't starve for too long time
+			 */
 			pcl->pcl_locked = 1;
 		}
 	}
diff --git a/drivers/staging/lustre/lustre/libcfs/libcfs_mem.c b/drivers/staging/lustre/lustre/libcfs/libcfs_mem.c
index 27cf861..c5a6951 100644
--- a/drivers/staging/lustre/lustre/libcfs/libcfs_mem.c
+++ b/drivers/staging/lustre/lustre/libcfs/libcfs_mem.c
@@ -13,11 +13,6 @@
  * General Public License version 2 for more details (a copy is included
  * in the LICENSE file that accompanied this code).
  *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
  * GPL HEADER END
  */
 /*
@@ -54,7 +49,7 @@ cfs_percpt_free(void *vars)
 	arr = container_of(vars, struct cfs_var_array, va_ptrs[0]);
 
 	for (i = 0; i < arr->va_count; i++) {
-		if (arr->va_ptrs[i] != NULL)
+		if (arr->va_ptrs[i])
 			LIBCFS_FREE(arr->va_ptrs[i], arr->va_size);
 	}
 
@@ -87,9 +82,10 @@ cfs_percpt_alloc(struct cfs_cpt_table *cptab, unsigned int size)
 	if (!arr)
 		return NULL;
 
-	arr->va_size	= size = L1_CACHE_ALIGN(size);
-	arr->va_count	= count;
-	arr->va_cptab	= cptab;
+	size = L1_CACHE_ALIGN(size);
+	arr->va_size = size;
+	arr->va_count = count;
+	arr->va_cptab = cptab;
 
 	for (i = 0; i < count; i++) {
 		LIBCFS_CPT_ALLOC(arr->va_ptrs[i], cptab, i, size);
diff --git a/drivers/staging/lustre/lustre/libcfs/libcfs_string.c b/drivers/staging/lustre/lustre/libcfs/libcfs_string.c
index 205a3ed..9dca666 100644
--- a/drivers/staging/lustre/lustre/libcfs/libcfs_string.c
+++ b/drivers/staging/lustre/lustre/libcfs/libcfs_string.c
@@ -54,7 +54,8 @@ int cfs_str2mask(const char *str, const char *(*bit2str)(int bit),
 	 * and optionally an operator ('+' or '-').  If an operator
 	 * appears first in <str>, '*oldmask' is used as the starting point
 	 * (relative), otherwise minmask is used (absolute).  An operator
-	 * applies to all following tokens up to the next operator. */
+	 * applies to all following tokens up to the next operator.
+	 */
 	while (*str != '\0') {
 		while (isspace(*str))
 			str++;
@@ -81,8 +82,7 @@ int cfs_str2mask(const char *str, const char *(*bit2str)(int bit),
 		found = 0;
 		for (i = 0; i < 32; i++) {
 			debugstr = bit2str(i);
-			if (debugstr != NULL &&
-			    strlen(debugstr) == len &&
+			if (debugstr && strlen(debugstr) == len &&
 			    strncasecmp(str, debugstr, len) == 0) {
 				if (op == '-')
 					newmask &= ~(1 << i);
@@ -175,7 +175,7 @@ cfs_gettok(struct cfs_lstr *next, char delim, struct cfs_lstr *res)
 {
 	char *end;
 
-	if (next->ls_str == NULL)
+	if (!next->ls_str)
 		return 0;
 
 	/* skip leading white spaces */
@@ -196,7 +196,7 @@ cfs_gettok(struct cfs_lstr *next, char delim, struct cfs_lstr *res)
 
 	res->ls_str = next->ls_str;
 	end = memchr(next->ls_str, delim, next->ls_len);
-	if (end == NULL) {
+	if (!end) {
 		/* there is no the delimeter in the string */
 		end = next->ls_str + next->ls_len;
 		next->ls_str = NULL;
@@ -229,18 +229,13 @@ int
 cfs_str2num_check(char *str, int nob, unsigned *num,
 		  unsigned min, unsigned max)
 {
-	char	*endp;
+	int rc;
 
 	str = cfs_trimwhite(str);
-	*num = simple_strtoul(str, &endp, 0);
-	if (endp == str)
+	rc = kstrtouint(str, 10, num);
+	if (rc)
 		return 0;
 
-	for (; endp < str + nob; endp++) {
-		if (!isspace(*endp))
-			return 0;
-	}
-
 	return (*num >= min && *num <= max);
 }
 EXPORT_SYMBOL(cfs_str2num_check);
@@ -266,7 +261,7 @@ cfs_range_expr_parse(struct cfs_lstr *src, unsigned min, unsigned max,
 	struct cfs_lstr		tok;
 
 	LIBCFS_ALLOC(re, sizeof(*re));
-	if (re == NULL)
+	if (!re)
 		return -ENOMEM;
 
 	if (src->ls_len == 1 && src->ls_str[0] == '*') {
@@ -337,18 +332,19 @@ cfs_range_expr_print(char *buffer, int count, struct cfs_range_expr *expr,
 	char s[] = "[";
 	char e[] = "]";
 
-	if (bracketed)
-		s[0] = e[0] = '\0';
+	if (bracketed) {
+		s[0] = '\0';
+		e[0] = '\0';
+	}
 
 	if (expr->re_lo == expr->re_hi)
 		i = scnprintf(buffer, count, "%u", expr->re_lo);
 	else if (expr->re_stride == 1)
 		i = scnprintf(buffer, count, "%s%u-%u%s",
-				s, expr->re_lo, expr->re_hi, e);
+			      s, expr->re_lo, expr->re_hi, e);
 	else
 		i = scnprintf(buffer, count, "%s%u-%u/%u%s",
-				s, expr->re_lo, expr->re_hi,
-				expr->re_stride, e);
+			      s, expr->re_lo, expr->re_hi, expr->re_stride, e);
 	return i;
 }
 
@@ -442,7 +438,7 @@ cfs_expr_list_values(struct cfs_expr_list *expr_list, int max, __u32 **valpp)
 	}
 
 	LIBCFS_ALLOC(val, sizeof(val[0]) * count);
-	if (val == NULL)
+	if (!val)
 		return -ENOMEM;
 
 	count = 0;
@@ -470,7 +466,7 @@ cfs_expr_list_free(struct cfs_expr_list *expr_list)
 		struct cfs_range_expr *expr;
 
 		expr = list_entry(expr_list->el_exprs.next,
-				      struct cfs_range_expr, re_link);
+				  struct cfs_range_expr, re_link);
 		list_del(&expr->re_link);
 		LIBCFS_FREE(expr, sizeof(*expr));
 	}
@@ -495,7 +491,7 @@ cfs_expr_list_parse(char *str, int len, unsigned min, unsigned max,
 	int			rc;
 
 	LIBCFS_ALLOC(expr_list, sizeof(*expr_list));
-	if (expr_list == NULL)
+	if (!expr_list)
 		return -ENOMEM;
 
 	src.ls_str = str;
@@ -509,7 +505,7 @@ cfs_expr_list_parse(char *str, int len, unsigned min, unsigned max,
 		src.ls_len -= 2;
 
 		rc = -EINVAL;
-		while (src.ls_str != NULL) {
+		while (src.ls_str) {
 			struct cfs_lstr tok;
 
 			if (!cfs_gettok(&src, ',', &tok)) {
@@ -521,15 +517,12 @@ cfs_expr_list_parse(char *str, int len, unsigned min, unsigned max,
 			if (rc != 0)
 				break;
 
-			list_add_tail(&expr->re_link,
-					  &expr_list->el_exprs);
+			list_add_tail(&expr->re_link, &expr_list->el_exprs);
 		}
 	} else {
 		rc = cfs_range_expr_parse(&src, min, max, 0, &expr);
-		if (rc == 0) {
-			list_add_tail(&expr->re_link,
-					  &expr_list->el_exprs);
-		}
+		if (rc == 0)
+			list_add_tail(&expr->re_link, &expr_list->el_exprs);
 	}
 
 	if (rc != 0)
@@ -555,8 +548,7 @@ cfs_expr_list_free_list(struct list_head *list)
 	struct cfs_expr_list *el;
 
 	while (!list_empty(list)) {
-		el = list_entry(list->next,
-				    struct cfs_expr_list, el_link);
+		el = list_entry(list->next, struct cfs_expr_list, el_link);
 		list_del(&el->el_link);
 		cfs_expr_list_free(el);
 	}
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
index e52afe3..389fb9e 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
@@ -13,11 +13,6 @@
  * General Public License version 2 for more details (a copy is included
  * in the LICENSE file that accompanied this code).
  *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
  * GPL HEADER END
  */
 /*
@@ -84,32 +79,32 @@ cfs_cpt_table_free(struct cfs_cpt_table *cptab)
 {
 	int	i;
 
-	if (cptab->ctb_cpu2cpt != NULL) {
+	if (cptab->ctb_cpu2cpt) {
 		LIBCFS_FREE(cptab->ctb_cpu2cpt,
 			    num_possible_cpus() *
 			    sizeof(cptab->ctb_cpu2cpt[0]));
 	}
 
-	for (i = 0; cptab->ctb_parts != NULL && i < cptab->ctb_nparts; i++) {
+	for (i = 0; cptab->ctb_parts && i < cptab->ctb_nparts; i++) {
 		struct cfs_cpu_partition *part = &cptab->ctb_parts[i];
 
-		if (part->cpt_nodemask != NULL) {
+		if (part->cpt_nodemask) {
 			LIBCFS_FREE(part->cpt_nodemask,
 				    sizeof(*part->cpt_nodemask));
 		}
 
-		if (part->cpt_cpumask != NULL)
+		if (part->cpt_cpumask)
 			LIBCFS_FREE(part->cpt_cpumask, cpumask_size());
 	}
 
-	if (cptab->ctb_parts != NULL) {
+	if (cptab->ctb_parts) {
 		LIBCFS_FREE(cptab->ctb_parts,
 			    cptab->ctb_nparts * sizeof(cptab->ctb_parts[0]));
 	}
 
-	if (cptab->ctb_nodemask != NULL)
+	if (cptab->ctb_nodemask)
 		LIBCFS_FREE(cptab->ctb_nodemask, sizeof(*cptab->ctb_nodemask));
-	if (cptab->ctb_cpumask != NULL)
+	if (cptab->ctb_cpumask)
 		LIBCFS_FREE(cptab->ctb_cpumask, cpumask_size());
 
 	LIBCFS_FREE(cptab, sizeof(*cptab));
@@ -123,7 +118,7 @@ cfs_cpt_table_alloc(unsigned int ncpt)
 	int	i;
 
 	LIBCFS_ALLOC(cptab, sizeof(*cptab));
-	if (cptab == NULL)
+	if (!cptab)
 		return NULL;
 
 	cptab->ctb_nparts = ncpt;
@@ -131,19 +126,19 @@ cfs_cpt_table_alloc(unsigned int ncpt)
 	LIBCFS_ALLOC(cptab->ctb_cpumask, cpumask_size());
 	LIBCFS_ALLOC(cptab->ctb_nodemask, sizeof(*cptab->ctb_nodemask));
 
-	if (cptab->ctb_cpumask == NULL || cptab->ctb_nodemask == NULL)
+	if (!cptab->ctb_cpumask || !cptab->ctb_nodemask)
 		goto failed;
 
 	LIBCFS_ALLOC(cptab->ctb_cpu2cpt,
 		     num_possible_cpus() * sizeof(cptab->ctb_cpu2cpt[0]));
-	if (cptab->ctb_cpu2cpt == NULL)
+	if (!cptab->ctb_cpu2cpt)
 		goto failed;
 
 	memset(cptab->ctb_cpu2cpt, -1,
 	       num_possible_cpus() * sizeof(cptab->ctb_cpu2cpt[0]));
 
 	LIBCFS_ALLOC(cptab->ctb_parts, ncpt * sizeof(cptab->ctb_parts[0]));
-	if (cptab->ctb_parts == NULL)
+	if (!cptab->ctb_parts)
 		goto failed;
 
 	for (i = 0; i < ncpt; i++) {
@@ -151,7 +146,7 @@ cfs_cpt_table_alloc(unsigned int ncpt)
 
 		LIBCFS_ALLOC(part->cpt_cpumask, cpumask_size());
 		LIBCFS_ALLOC(part->cpt_nodemask, sizeof(*part->cpt_nodemask));
-		if (part->cpt_cpumask == NULL || part->cpt_nodemask == NULL)
+		if (!part->cpt_cpumask || !part->cpt_nodemask)
 			goto failed;
 	}
 
@@ -359,8 +354,6 @@ cfs_cpt_unset_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
 
 	if (i >= nr_cpu_ids)
 		node_clear(node, *cptab->ctb_nodemask);
-
-	return;
 }
 EXPORT_SYMBOL(cfs_cpt_unset_cpu);
 
@@ -530,7 +523,8 @@ cfs_cpt_current(struct cfs_cpt_table *cptab, int remap)
 			return cpt;
 
 		/* don't return negative value for safety of upper layer,
-		 * instead we shadow the unknown cpu to a valid partition ID */
+		 * instead we shadow the unknown cpu to a valid partition ID
+		 */
 		cpt = cpu % cptab->ctb_nparts;
 	}
 
@@ -618,7 +612,7 @@ cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
 	/* allocate scratch buffer */
 	LIBCFS_ALLOC(socket, cpumask_size());
 	LIBCFS_ALLOC(core, cpumask_size());
-	if (socket == NULL || core == NULL) {
+	if (!socket || !core) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -659,9 +653,9 @@ cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
 	}
 
  out:
-	if (socket != NULL)
+	if (socket)
 		LIBCFS_FREE(socket, cpumask_size());
-	if (core != NULL)
+	if (core)
 		LIBCFS_FREE(core, cpumask_size());
 	return rc;
 }
@@ -682,7 +676,8 @@ cfs_cpt_num_estimate(void)
 
 	/* generate reasonable number of CPU partitions based on total number
 	 * of CPUs, Preferred N should be power2 and match this condition:
-	 * 2 * (N - 1)^2 < NCPUS <= 2 * N^2 */
+	 * 2 * (N - 1)^2 < NCPUS <= 2 * N^2
+	 */
 	for (ncpt = 2; ncpu > 2 * ncpt * ncpt; ncpt <<= 1)
 		;
 
@@ -700,7 +695,8 @@ cfs_cpt_num_estimate(void)
  out:
 #if (BITS_PER_LONG == 32)
 	/* config many CPU partitions on 32-bit system could consume
-	 * too much memory */
+	 * too much memory
+	 */
 	ncpt = min(2U, ncpt);
 #endif
 	while (ncpu % ncpt != 0)
@@ -735,7 +731,7 @@ cfs_cpt_table_create(int ncpt)
 	}
 
 	cptab = cfs_cpt_table_alloc(ncpt);
-	if (cptab == NULL) {
+	if (!cptab) {
 		CERROR("Failed to allocate CPU map(%d)\n", ncpt);
 		goto failed;
 	}
@@ -747,7 +743,7 @@ cfs_cpt_table_create(int ncpt)
 	}
 
 	LIBCFS_ALLOC(mask, cpumask_size());
-	if (mask == NULL) {
+	if (!mask) {
 		CERROR("Failed to allocate scratch cpumask\n");
 		goto failed;
 	}
@@ -793,10 +789,10 @@ cfs_cpt_table_create(int ncpt)
 	CERROR("Failed to setup CPU-partition-table with %d CPU-partitions, online HW nodes: %d, HW cpus: %d.\n",
 	       ncpt, num_online_nodes(), num_online_cpus());
 
-	if (mask != NULL)
+	if (mask)
 		LIBCFS_FREE(mask, cpumask_size());
 
-	if (cptab != NULL)
+	if (cptab)
 		cfs_cpt_table_free(cptab);
 
 	return NULL;
@@ -814,7 +810,7 @@ cfs_cpt_table_create_pattern(char *pattern)
 
 	for (ncpt = 0;; ncpt++) { /* quick scan bracket */
 		str = strchr(str, '[');
-		if (str == NULL)
+		if (!str)
 			break;
 		str++;
 	}
@@ -836,7 +832,7 @@ cfs_cpt_table_create_pattern(char *pattern)
 	high = node ? MAX_NUMNODES - 1 : nr_cpu_ids - 1;
 
 	cptab = cfs_cpt_table_alloc(ncpt);
-	if (cptab == NULL) {
+	if (!cptab) {
 		CERROR("Failed to allocate cpu partition table\n");
 		return NULL;
 	}
@@ -850,11 +846,12 @@ cfs_cpt_table_create_pattern(char *pattern)
 		int			i;
 		int			n;
 
-		if (bracket == NULL) {
+		if (!bracket) {
 			if (*str != 0) {
 				CERROR("Invalid pattern %s\n", str);
 				goto failed;
-			} else if (c != ncpt) {
+			}
+			if (c != ncpt) {
 				CERROR("expect %d partitions but found %d\n",
 				       ncpt, c);
 				goto failed;
@@ -885,7 +882,7 @@ cfs_cpt_table_create_pattern(char *pattern)
 		}
 
 		bracket = strchr(str, ']');
-		if (bracket == NULL) {
+		if (!bracket) {
 			CERROR("missing right bracket for cpt %d, %s\n",
 			       cpt, str);
 			goto failed;
@@ -943,6 +940,7 @@ cfs_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
 		spin_lock(&cpt_data.cpt_lock);
 		cpt_data.cpt_version++;
 		spin_unlock(&cpt_data.cpt_lock);
+		/* Fall through */
 	default:
 		if (action != CPU_DEAD && action != CPU_DEAD_FROZEN) {
 			CDEBUG(D_INFO, "CPU changed [cpu %u action %lx]\n",
@@ -975,25 +973,25 @@ static struct notifier_block cfs_cpu_notifier = {
 void
 cfs_cpu_fini(void)
 {
-	if (cfs_cpt_table != NULL)
+	if (cfs_cpt_table)
 		cfs_cpt_table_free(cfs_cpt_table);
 
 #ifdef CONFIG_HOTPLUG_CPU
 	unregister_hotcpu_notifier(&cfs_cpu_notifier);
 #endif
-	if (cpt_data.cpt_cpumask != NULL)
+	if (cpt_data.cpt_cpumask)
 		LIBCFS_FREE(cpt_data.cpt_cpumask, cpumask_size());
 }
 
 int
 cfs_cpu_init(void)
 {
-	LASSERT(cfs_cpt_table == NULL);
+	LASSERT(!cfs_cpt_table);
 
 	memset(&cpt_data, 0, sizeof(cpt_data));
 
 	LIBCFS_ALLOC(cpt_data.cpt_cpumask, cpumask_size());
-	if (cpt_data.cpt_cpumask == NULL) {
+	if (!cpt_data.cpt_cpumask) {
 		CERROR("Failed to allocate scratch buffer\n");
 		return -1;
 	}
@@ -1007,7 +1005,7 @@ cfs_cpu_init(void)
 
 	if (*cpu_pattern != 0) {
 		cfs_cpt_table = cfs_cpt_table_create_pattern(cpu_pattern);
-		if (cfs_cpt_table == NULL) {
+		if (!cfs_cpt_table) {
 			CERROR("Failed to create cptab from pattern %s\n",
 			       cpu_pattern);
 			goto failed;
@@ -1015,7 +1013,7 @@ cfs_cpu_init(void)
 
 	} else {
 		cfs_cpt_table = cfs_cpt_table_create(cpu_npartitions);
-		if (cfs_cpt_table == NULL) {
+		if (!cfs_cpt_table) {
 			CERROR("Failed to create ptable with npartitions %d\n",
 			       cpu_npartitions);
 			goto failed;
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto.c
index 079d50e..ec75801 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto.c
@@ -45,14 +45,14 @@ static int cfs_crypto_hash_alloc(unsigned char alg_id,
 
 	*type = cfs_crypto_hash_type(alg_id);
 
-	if (*type == NULL) {
+	if (!*type) {
 		CWARN("Unsupported hash algorithm id = %d, max id is %d\n",
 		      alg_id, CFS_HASH_ALG_MAX);
 		return -EINVAL;
 	}
 	desc->tfm = crypto_alloc_hash((*type)->cht_name, 0, 0);
 
-	if (desc->tfm == NULL)
+	if (!desc->tfm)
 		return -EINVAL;
 
 	if (IS_ERR(desc->tfm)) {
@@ -69,7 +69,7 @@ static int cfs_crypto_hash_alloc(unsigned char alg_id,
 	 * Skip this function for digest, because we use shash logic at
 	 * cfs_crypto_hash_alloc.
 	 */
-	if (key != NULL)
+	if (key)
 		err = crypto_hash_setkey(desc->tfm, key, key_len);
 	else if ((*type)->cht_key != 0)
 		err = crypto_hash_setkey(desc->tfm,
@@ -99,14 +99,14 @@ int cfs_crypto_hash_digest(unsigned char alg_id,
 	int			err;
 	const struct cfs_crypto_hash_type	*type;
 
-	if (buf == NULL || buf_len == 0 || hash_len == NULL)
+	if (!buf || buf_len == 0 || !hash_len)
 		return -EINVAL;
 
 	err = cfs_crypto_hash_alloc(alg_id, &type, &hdesc, key, key_len);
 	if (err != 0)
 		return err;
 
-	if (hash == NULL || *hash_len < type->cht_size) {
+	if (!hash || *hash_len < type->cht_size) {
 		*hash_len = type->cht_size;
 		crypto_free_hash(hdesc.tfm);
 		return -ENOSPC;
@@ -125,13 +125,12 @@ struct cfs_crypto_hash_desc *
 	cfs_crypto_hash_init(unsigned char alg_id,
 			     unsigned char *key, unsigned int key_len)
 {
-
 	struct  hash_desc       *hdesc;
 	int		     err;
 	const struct cfs_crypto_hash_type       *type;
 
 	hdesc = kmalloc(sizeof(*hdesc), 0);
-	if (hdesc == NULL)
+	if (!hdesc)
 		return ERR_PTR(-ENOMEM);
 
 	err = cfs_crypto_hash_alloc(alg_id, &type, hdesc, key, key_len);
@@ -175,16 +174,16 @@ int cfs_crypto_hash_final(struct cfs_crypto_hash_desc *hdesc,
 	int     err;
 	int     size = crypto_hash_digestsize(((struct hash_desc *)hdesc)->tfm);
 
-	if (hash_len == NULL) {
+	if (!hash_len) {
 		crypto_free_hash(((struct hash_desc *)hdesc)->tfm);
 		kfree(hdesc);
 		return 0;
 	}
-	if (hash == NULL || *hash_len < size) {
+	if (!hash || *hash_len < size) {
 		*hash_len = size;
 		return -ENOSPC;
 	}
-	err = crypto_hash_final((struct hash_desc *) hdesc, hash);
+	err = crypto_hash_final((struct hash_desc *)hdesc, hash);
 
 	if (err < 0) {
 		/* May be caller can fix error */
@@ -212,7 +211,6 @@ static void cfs_crypto_performance_test(unsigned char alg_id,
 					     hash, &hash_len);
 		if (err)
 			break;
-
 	}
 	end = jiffies;
 
@@ -235,8 +233,7 @@ int cfs_crypto_hash_speed(unsigned char hash_alg)
 {
 	if (hash_alg < CFS_HASH_ALG_MAX)
 		return cfs_crypto_hash_speeds[hash_alg];
-	else
-		return -1;
+	return -1;
 }
 EXPORT_SYMBOL(cfs_crypto_hash_speed);
 
@@ -249,11 +246,12 @@ static int cfs_crypto_test_hashes(void)
 	unsigned char	   *data;
 	unsigned int	    j;
 	/* Data block size for testing hash. Maximum
-	 * kmalloc size for 2.6.18 kernel is 128K */
+	 * kmalloc size for 2.6.18 kernel is 128K
+	 */
 	unsigned int	    data_len = 1 * 128 * 1024;
 
 	data = kmalloc(data_len, 0);
-	if (data == NULL) {
+	if (!data) {
 		CERROR("Failed to allocate mem\n");
 		return -ENOMEM;
 	}
@@ -285,6 +283,4 @@ void cfs_crypto_unregister(void)
 {
 	if (adler32 == 0)
 		cfs_crypto_adler32_unregister();
-
-	return;
 }
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
index 68515d9..13d31e8 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
@@ -65,6 +65,7 @@ void cfs_cap_raise(cfs_cap_t cap)
 		commit_creds(cred);
 	}
 }
+EXPORT_SYMBOL(cfs_cap_raise);
 
 void cfs_cap_lower(cfs_cap_t cap)
 {
@@ -76,11 +77,13 @@ void cfs_cap_lower(cfs_cap_t cap)
 		commit_creds(cred);
 	}
 }
+EXPORT_SYMBOL(cfs_cap_lower);
 
 int cfs_cap_raised(cfs_cap_t cap)
 {
 	return cap_raised(current_cap(), cap);
 }
+EXPORT_SYMBOL(cfs_cap_raised);
 
 static void cfs_kernel_cap_pack(kernel_cap_t kcap, cfs_cap_t *cap)
 {
@@ -95,10 +98,6 @@ cfs_cap_t cfs_curproc_cap_pack(void)
 	cfs_kernel_cap_pack(current_cap(), &cap);
 	return cap;
 }
-
-EXPORT_SYMBOL(cfs_cap_raise);
-EXPORT_SYMBOL(cfs_cap_lower);
-EXPORT_SYMBOL(cfs_cap_raised);
 EXPORT_SYMBOL(cfs_curproc_cap_pack);
 
 /*
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
index 59c7bf3..638e4b3 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
@@ -80,14 +80,14 @@ void libcfs_run_debug_log_upcall(char *file)
 
 	argv[0] = lnet_debug_log_upcall;
 
-	LASSERTF(file != NULL, "called on a null filename\n");
+	LASSERTF(file, "called on a null filename\n");
 	argv[1] = file; /* only need to pass the path of the file */
 
 	argv[2] = NULL;
 
 	rc = call_usermodehelper(argv[0], argv, envp, 1);
 	if (rc < 0 && rc != -ENOENT) {
-		CERROR("Error %d invoking LNET debug log upcall %s %s; check /proc/sys/lnet/debug_log_upcall\n",
+		CERROR("Error %d invoking LNET debug log upcall %s %s; check /sys/kernel/debug/lnet/debug_log_upcall\n",
 		       rc, argv[0], argv[1]);
 	} else {
 		CDEBUG(D_HA, "Invoked LNET debug log upcall %s %s\n",
@@ -106,14 +106,14 @@ void libcfs_run_upcall(char **argv)
 
 	argv[0] = lnet_upcall;
 	argc = 1;
-	while (argv[argc] != NULL)
+	while (argv[argc])
 		argc++;
 
 	LASSERT(argc >= 2);
 
 	rc = call_usermodehelper(argv[0], argv, envp, 1);
 	if (rc < 0 && rc != -ENOENT) {
-		CERROR("Error %d invoking LNET upcall %s %s%s%s%s%s%s%s%s; check /proc/sys/lnet/upcall\n",
+		CERROR("Error %d invoking LNET upcall %s %s%s%s%s%s%s%s%s; check /sys/kernel/debug/lnet/upcall\n",
 		       rc, argv[0], argv[1],
 		       argc < 3 ? "" : ",", argc < 3 ? "" : argv[2],
 		       argc < 4 ? "" : ",", argc < 4 ? "" : argv[3],
@@ -142,8 +142,9 @@ void libcfs_run_lbug_upcall(struct libcfs_debug_msg_data *msgdata)
 	argv[4] = buf;
 	argv[5] = NULL;
 
-	libcfs_run_upcall (argv);
+	libcfs_run_upcall(argv);
 }
+EXPORT_SYMBOL(libcfs_run_lbug_upcall);
 
 /* coverity[+kill] */
 void __noreturn lbug_with_loc(struct libcfs_debug_msg_data *msgdata)
@@ -166,9 +167,10 @@ void __noreturn lbug_with_loc(struct libcfs_debug_msg_data *msgdata)
 	while (1)
 		schedule();
 }
+EXPORT_SYMBOL(lbug_with_loc);
 
 static int panic_notifier(struct notifier_block *self, unsigned long unused1,
-			 void *unused2)
+			  void *unused2)
 {
 	if (libcfs_panic_in_progress)
 		return 0;
@@ -187,13 +189,12 @@ static struct notifier_block libcfs_panic_notifier = {
 
 void libcfs_register_panic_notifier(void)
 {
-	atomic_notifier_chain_register(&panic_notifier_list, &libcfs_panic_notifier);
+	atomic_notifier_chain_register(&panic_notifier_list,
+				       &libcfs_panic_notifier);
 }
 
 void libcfs_unregister_panic_notifier(void)
 {
-	atomic_notifier_chain_unregister(&panic_notifier_list, &libcfs_panic_notifier);
+	atomic_notifier_chain_unregister(&panic_notifier_list,
+					 &libcfs_panic_notifier);
 }
-
-EXPORT_SYMBOL(libcfs_run_lbug_upcall);
-EXPORT_SYMBOL(lbug_with_loc);
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-mem.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-mem.c
index 025e2f0..86f32ff 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-mem.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-mem.c
@@ -50,7 +50,7 @@ void *libcfs_kvzalloc_cpt(struct cfs_cpt_table *cptab, int cpt, size_t size,
 	ret = kzalloc_node(size, flags | __GFP_NOWARN,
 			   cfs_cpt_spread_node(cptab, cpt));
 	if (!ret) {
-		WARN_ON(!(flags & (__GFP_FS|__GFP_HIGH)));
+		WARN_ON(!(flags & (__GFP_FS | __GFP_HIGH)));
 		ret = vmalloc_node(size, cfs_cpt_spread_node(cptab, cpt));
 	}
 
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c
index e5bc3d3..ebc60ac 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c
@@ -40,41 +40,10 @@
 
 #define LNET_MINOR 240
 
-int libcfs_ioctl_getdata(char *buf, char *end, void __user *arg)
+int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data)
 {
-	struct libcfs_ioctl_hdr   *hdr;
-	struct libcfs_ioctl_data  *data;
-	int orig_len;
-
-	hdr = (struct libcfs_ioctl_hdr *)buf;
-	data = (struct libcfs_ioctl_data *)buf;
-
-	if (copy_from_user(buf, arg, sizeof(*hdr)))
-		return -EFAULT;
-
-	if (hdr->ioc_version != LIBCFS_IOCTL_VERSION) {
-		CERROR("PORTALS: version mismatch kernel vs application\n");
-		return -EINVAL;
-	}
-
-	if (hdr->ioc_len >= end - buf) {
-		CERROR("PORTALS: user buffer exceeds kernel buffer\n");
-		return -EINVAL;
-	}
-
-	if (hdr->ioc_len < sizeof(struct libcfs_ioctl_data)) {
-		CERROR("PORTALS: user buffer too small for ioctl\n");
-		return -EINVAL;
-	}
-
-	orig_len = hdr->ioc_len;
-	if (copy_from_user(buf, arg, hdr->ioc_len))
-		return -EFAULT;
-	if (orig_len != data->ioc_len)
-		return -EINVAL;
-
 	if (libcfs_ioctl_is_invalid(data)) {
-		CERROR("PORTALS: ioctl not correctly formatted\n");
+		CERROR("LNET: ioctl not correctly formatted\n");
 		return -EINVAL;
 	}
 
@@ -88,6 +57,26 @@ int libcfs_ioctl_getdata(char *buf, char *end, void __user *arg)
 	return 0;
 }
 
+int libcfs_ioctl_getdata_len(const struct libcfs_ioctl_hdr __user *arg,
+			     __u32 *len)
+{
+	struct libcfs_ioctl_hdr hdr;
+
+	if (copy_from_user(&hdr, arg, sizeof(hdr)))
+		return -EFAULT;
+
+	if (hdr.ioc_version != LIBCFS_IOCTL_VERSION &&
+	    hdr.ioc_version != LIBCFS_IOCTL_VERSION2) {
+		CERROR("LNET: version mismatch expected %#x, got %#x\n",
+		       LIBCFS_IOCTL_VERSION, hdr.ioc_version);
+		return -EINVAL;
+	}
+
+	*len = hdr.ioc_len;
+
+	return 0;
+}
+
 int libcfs_ioctl_popdata(void __user *arg, void *data, int size)
 {
 	if (copy_to_user(arg, data, size))
@@ -102,7 +91,7 @@ libcfs_psdev_open(struct inode *inode, struct file *file)
 
 	if (!inode)
 		return -EINVAL;
-	if (libcfs_psdev_ops.p_open != NULL)
+	if (libcfs_psdev_ops.p_open)
 		rc = libcfs_psdev_ops.p_open(0, NULL);
 	else
 		return -EPERM;
@@ -117,7 +106,7 @@ libcfs_psdev_release(struct inode *inode, struct file *file)
 
 	if (!inode)
 		return -EINVAL;
-	if (libcfs_psdev_ops.p_close != NULL)
+	if (libcfs_psdev_ops.p_close)
 		rc = libcfs_psdev_ops.p_close(0, NULL);
 	else
 		rc = -EPERM;
@@ -134,8 +123,8 @@ static long libcfs_ioctl(struct file *file,
 		return -EACCES;
 
 	if (_IOC_TYPE(cmd) != IOC_LIBCFS_TYPE ||
-	     _IOC_NR(cmd) < IOC_LIBCFS_MIN_NR  ||
-	     _IOC_NR(cmd) > IOC_LIBCFS_MAX_NR) {
+	    _IOC_NR(cmd) < IOC_LIBCFS_MIN_NR  ||
+	    _IOC_NR(cmd) > IOC_LIBCFS_MAX_NR) {
 		CDEBUG(D_IOCTL, "invalid ioctl ( type %d, nr %d, size %d )\n",
 		       _IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
 		return -EINVAL;
@@ -150,7 +139,7 @@ static long libcfs_ioctl(struct file *file,
 		return 0;
 	}
 
-	if (libcfs_psdev_ops.p_ioctl != NULL)
+	if (libcfs_psdev_ops.p_ioctl)
 		rc = libcfs_psdev_ops.p_ioctl(&pfile, cmd, (void __user *)arg);
 	else
 		rc = -EPERM;
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.c
index 64a136c..91c2ae8 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.c
@@ -63,9 +63,8 @@ int cfs_tracefile_init_arch(void)
 		cfs_trace_data[i] =
 			kmalloc(sizeof(union cfs_trace_data_union) *
 				num_possible_cpus(), GFP_KERNEL);
-		if (cfs_trace_data[i] == NULL)
+		if (!cfs_trace_data[i])
 			goto out;
-
 	}
 
 	/* arch related info initialized */
@@ -82,7 +81,7 @@ int cfs_tracefile_init_arch(void)
 				kmalloc(CFS_TRACE_CONSOLE_BUFFER_SIZE,
 					GFP_KERNEL);
 
-			if (cfs_trace_console_buffers[i][j] == NULL)
+			if (!cfs_trace_console_buffers[i][j])
 				goto out;
 		}
 
@@ -105,7 +104,7 @@ void cfs_tracefile_fini_arch(void)
 			cfs_trace_console_buffers[i][j] = NULL;
 		}
 
-	for (i = 0; cfs_trace_data[i] != NULL; i++) {
+	for (i = 0; cfs_trace_data[i]; i++) {
 		kfree(cfs_trace_data[i]);
 		cfs_trace_data[i] = NULL;
 	}
@@ -131,14 +130,13 @@ void cfs_tracefile_write_unlock(void)
 	up_write(&cfs_tracefile_sem);
 }
 
-cfs_trace_buf_type_t cfs_trace_buf_idx_get(void)
+enum cfs_trace_buf_type cfs_trace_buf_idx_get(void)
 {
 	if (in_irq())
 		return CFS_TCD_TYPE_IRQ;
-	else if (in_softirq())
+	if (in_softirq())
 		return CFS_TCD_TYPE_SOFTIRQ;
-	else
-		return CFS_TCD_TYPE_PROC;
+	return CFS_TCD_TYPE_PROC;
 }
 
 /*
@@ -176,16 +174,6 @@ void cfs_trace_unlock_tcd(struct cfs_trace_cpu_data *tcd, int walking)
 		spin_unlock(&tcd->tcd_lock);
 }
 
-int cfs_tcd_owns_tage(struct cfs_trace_cpu_data *tcd,
-		      struct cfs_trace_page *tage)
-{
-	/*
-	 * XXX nikita: do NOT call portals_debug_msg() (CDEBUG/ENTRY/EXIT)
-	 * from here: this will lead to infinite recursion.
-	 */
-	return tcd->tcd_cpu == tage->cpu;
-}
-
 void
 cfs_set_ptldebug_header(struct ptldebug_header *header,
 			struct libcfs_debug_msg_data *msgdata,
@@ -200,14 +188,14 @@ cfs_set_ptldebug_header(struct ptldebug_header *header,
 	header->ph_cpu_id = smp_processor_id();
 	header->ph_type = cfs_trace_buf_idx_get();
 	/* y2038 safe since all user space treats this as unsigned, but
-	 * will overflow in 2106 */
+	 * will overflow in 2106
+	 */
 	header->ph_sec = (u32)ts.tv_sec;
 	header->ph_usec = ts.tv_nsec / NSEC_PER_USEC;
 	header->ph_stack = stack;
 	header->ph_pid = current->pid;
 	header->ph_line_num = msgdata->msg_line;
 	header->ph_extern_pid = 0;
-	return;
 }
 
 static char *
@@ -261,12 +249,11 @@ void cfs_print_to_console(struct ptldebug_header *hdr, int mask,
 		       hdr->ph_pid, hdr->ph_extern_pid, file, hdr->ph_line_num,
 		       fn, len, buf);
 	}
-	return;
 }
 
 int cfs_trace_max_debug_mb(void)
 {
 	int  total_mb = (totalram_pages >> (20 - PAGE_SHIFT));
 
-	return max(512, (total_mb * 80)/100);
+	return max(512, (total_mb * 80) / 100);
 }
diff --git a/drivers/staging/lustre/lustre/libcfs/module.c b/drivers/staging/lustre/lustre/libcfs/module.c
index 611607a..05e2c56 100644
--- a/drivers/staging/lustre/lustre/libcfs/module.c
+++ b/drivers/staging/lustre/lustre/libcfs/module.c
@@ -54,11 +54,15 @@
 
 # define DEBUG_SUBSYSTEM S_LNET
 
+#define LNET_MAX_IOCTL_BUF_LEN (sizeof(struct lnet_ioctl_net_config) + \
+				sizeof(struct lnet_ioctl_config_data))
+
 #include "../../include/linux/libcfs/libcfs.h"
 #include <asm/div64.h>
 
 #include "../../include/linux/libcfs/libcfs_crypto.h"
 #include "../../include/linux/lnet/lib-lnet.h"
+#include "../../include/linux/lnet/lib-dlc.h"
 #include "../../include/linux/lnet/lnet.h"
 #include "tracefile.h"
 
@@ -115,11 +119,25 @@ int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand)
 }
 EXPORT_SYMBOL(libcfs_deregister_ioctl);
 
-static int libcfs_ioctl_int(struct cfs_psdev_file *pfile, unsigned long cmd,
-			    void __user *arg, struct libcfs_ioctl_data *data)
+static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd,
+			       void *arg, struct libcfs_ioctl_hdr *hdr)
 {
+	struct libcfs_ioctl_data *data = NULL;
 	int err = -EINVAL;
 
+	/*
+	 * The libcfs_ioctl_data_adjust() function performs adjustment
+	 * operations on the libcfs_ioctl_data structure to make
+	 * it usable by the code.  This doesn't need to be called
+	 * for new data structures added.
+	 */
+	if (hdr->ioc_version == LIBCFS_IOCTL_VERSION) {
+		data = container_of(hdr, struct libcfs_ioctl_data, ioc_hdr);
+		err = libcfs_ioctl_data_adjust(data);
+		if (err)
+			return err;
+	}
+
 	switch (cmd) {
 	case IOC_LIBCFS_CLEAR_DEBUG:
 		libcfs_debug_clear_buffer();
@@ -129,7 +147,7 @@ static int libcfs_ioctl_int(struct cfs_psdev_file *pfile, unsigned long cmd,
 	 * Handled in arch/cfs_module.c
 	 */
 	case IOC_LIBCFS_MARK_DEBUG:
-		if (data->ioc_inlbuf1 == NULL ||
+		if (!data->ioc_inlbuf1 ||
 		    data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0')
 			return -EINVAL;
 		libcfs_debug_mark_buffer(data->ioc_inlbuf1);
@@ -141,11 +159,11 @@ static int libcfs_ioctl_int(struct cfs_psdev_file *pfile, unsigned long cmd,
 		err = -EINVAL;
 		down_read(&ioctl_list_sem);
 		list_for_each_entry(hand, &ioctl_list, item) {
-			err = hand->handle_ioctl(cmd, data);
+			err = hand->handle_ioctl(cmd, hdr);
 			if (err != -EINVAL) {
 				if (err == 0)
 					err = libcfs_ioctl_popdata(arg,
-							data, sizeof(*data));
+							hdr, hdr->ioc_len);
 				break;
 			}
 		}
@@ -160,26 +178,38 @@ static int libcfs_ioctl_int(struct cfs_psdev_file *pfile, unsigned long cmd,
 static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd,
 			void __user *arg)
 {
-	char    *buf;
-	struct libcfs_ioctl_data *data;
+	struct libcfs_ioctl_hdr *hdr;
 	int err = 0;
+	__u32 buf_len;
+
+	err = libcfs_ioctl_getdata_len(arg, &buf_len);
+	if (err)
+		return err;
 
-	LIBCFS_ALLOC_GFP(buf, 1024, GFP_KERNEL);
-	if (buf == NULL)
+	/*
+	 * do a check here to restrict the size of the memory
+	 * to allocate to guard against DoS attacks.
+	 */
+	if (buf_len > LNET_MAX_IOCTL_BUF_LEN) {
+		CERROR("LNET: user buffer exceeds kernel buffer\n");
+		return -EINVAL;
+	}
+
+	LIBCFS_ALLOC_GFP(hdr, buf_len, GFP_KERNEL);
+	if (!hdr)
 		return -ENOMEM;
 
 	/* 'cmd' and permissions get checked in our arch-specific caller */
-	if (libcfs_ioctl_getdata(buf, buf + 800, arg)) {
-		CERROR("PORTALS ioctl: data error\n");
-		err = -EINVAL;
+	if (copy_from_user(hdr, arg, buf_len)) {
+		CERROR("LNET ioctl: data error\n");
+		err = -EFAULT;
 		goto out;
 	}
-	data = (struct libcfs_ioctl_data *)buf;
 
-	err = libcfs_ioctl_int(pfile, cmd, arg, data);
+	err = libcfs_ioctl_handle(pfile, cmd, arg, hdr);
 
 out:
-	LIBCFS_FREE(buf, 1024);
+	LIBCFS_FREE(hdr, buf_len);
 	return err;
 }
 
@@ -192,9 +222,9 @@ struct cfs_psdev_ops libcfs_psdev_ops = {
 };
 
 static int proc_call_handler(void *data, int write, loff_t *ppos,
-		void __user *buffer, size_t *lenp,
-		int (*handler)(void *data, int write,
-		loff_t pos, void __user *buffer, int len))
+			     void __user *buffer, size_t *lenp,
+			     int (*handler)(void *data, int write, loff_t pos,
+					    void __user *buffer, int len))
 {
 	int rc = handler(data, write, *ppos, buffer, *lenp);
 
@@ -329,11 +359,11 @@ static int __proc_cpt_table(void *data, int write,
 	if (write)
 		return -EPERM;
 
-	LASSERT(cfs_cpt_table != NULL);
+	LASSERT(cfs_cpt_table);
 
 	while (1) {
 		LIBCFS_ALLOC(buf, len);
-		if (buf == NULL)
+		if (!buf)
 			return -ENOMEM;
 
 		rc = cfs_cpt_table_print(cfs_cpt_table, buf, len);
@@ -355,23 +385,19 @@ static int __proc_cpt_table(void *data, int write,
 
 	rc = cfs_trace_copyout_string(buffer, nob, buf + pos, NULL);
  out:
-	if (buf != NULL)
+	if (buf)
 		LIBCFS_FREE(buf, len);
 	return rc;
 }
 
 static int proc_cpt_table(struct ctl_table *table, int write,
-			   void __user *buffer, size_t *lenp, loff_t *ppos)
+			  void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	return proc_call_handler(table->data, write, ppos, buffer, lenp,
 				 __proc_cpt_table);
 }
 
 static struct ctl_table lnet_table[] = {
-	/*
-	 * NB No .strategy entries have been provided since sysctl(8) prefers
-	 * to go via /proc for portability.
-	 */
 	{
 		.procname = "debug",
 		.data     = &libcfs_debug,
@@ -535,7 +561,7 @@ static const struct file_operations *lnet_debugfs_fops_select(umode_t mode)
 void lustre_insert_debugfs(struct ctl_table *table,
 			   const struct lnet_debugfs_symlink_def *symlinks)
 {
-	if (lnet_debugfs_root == NULL)
+	if (!lnet_debugfs_root)
 		lnet_debugfs_root = debugfs_create_dir("lnet", NULL);
 
 	/* Even if we cannot create, just ignore it altogether) */
@@ -553,14 +579,12 @@ void lustre_insert_debugfs(struct ctl_table *table,
 	for (; symlinks && symlinks->name; symlinks++)
 		debugfs_create_symlink(symlinks->name, lnet_debugfs_root,
 				       symlinks->target);
-
 }
 EXPORT_SYMBOL_GPL(lustre_insert_debugfs);
 
 static void lustre_remove_debugfs(void)
 {
-	if (lnet_debugfs_root != NULL)
-		debugfs_remove_recursive(lnet_debugfs_root);
+	debugfs_remove_recursive(lnet_debugfs_root);
 
 	lnet_debugfs_root = NULL;
 }
diff --git a/drivers/staging/lustre/lustre/libcfs/prng.c b/drivers/staging/lustre/lustre/libcfs/prng.c
index 4147664..c75ae9a 100644
--- a/drivers/staging/lustre/lustre/libcfs/prng.c
+++ b/drivers/staging/lustre/lustre/libcfs/prng.c
@@ -42,11 +42,11 @@
 #include "../../include/linux/libcfs/libcfs.h"
 
 /*
-From: George Marsaglia <geo@stat.fsu.edu>
-Newsgroups: sci.math
-Subject: Re: A RANDOM NUMBER GENERATOR FOR C
-Date: Tue, 30 Sep 1997 05:29:35 -0700
-
+ * From: George Marsaglia <geo@stat.fsu.edu>
+ * Newsgroups: sci.math
+ * Subject: Re: A RANDOM NUMBER GENERATOR FOR C
+ * Date: Tue, 30 Sep 1997 05:29:35 -0700
+ *
  * You may replace the two constants 36969 and 18000 by any
  * pair of distinct constants from this list:
  * 18000 18030 18273 18513 18879 19074 19098 19164 19215 19584
@@ -58,7 +58,8 @@ Date: Tue, 30 Sep 1997 05:29:35 -0700
  * 27960 28320 28380 28689 28710 28794 28854 28959 28980 29013
  * 29379 29889 30135 30345 30459 30714 30903 30963 31059 31083
  * (or any other 16-bit constants k for which both k*2^16-1
- * and k*2^15-1 are prime) */
+ * and k*2^15-1 are prime)
+ */
 
 #define RANDOM_CONST_A 18030
 #define RANDOM_CONST_B 29013
diff --git a/drivers/staging/lustre/lustre/libcfs/tracefile.c b/drivers/staging/lustre/lustre/libcfs/tracefile.c
index 65c4f1a..ec3bc04 100644
--- a/drivers/staging/lustre/lustre/libcfs/tracefile.c
+++ b/drivers/staging/lustre/lustre/libcfs/tracefile.c
@@ -56,6 +56,51 @@ static int thread_running;
 
 static atomic_t cfs_tage_allocated = ATOMIC_INIT(0);
 
+struct page_collection {
+	struct list_head	pc_pages;
+	/*
+	 * if this flag is set, collect_pages() will spill both
+	 * ->tcd_daemon_pages and ->tcd_pages to the ->pc_pages. Otherwise,
+	 * only ->tcd_pages are spilled.
+	 */
+	int		pc_want_daemon_pages;
+};
+
+struct tracefiled_ctl {
+	struct completion	tctl_start;
+	struct completion	tctl_stop;
+	wait_queue_head_t		tctl_waitq;
+	pid_t			tctl_pid;
+	atomic_t		tctl_shutdown;
+};
+
+/*
+ * small data-structure for each page owned by tracefiled.
+ */
+struct cfs_trace_page {
+	/*
+	 * page itself
+	 */
+	struct page	  *page;
+	/*
+	 * linkage into one of the lists in trace_data_union or
+	 * page_collection
+	 */
+	struct list_head	   linkage;
+	/*
+	 * number of bytes used within this page
+	 */
+	unsigned int	 used;
+	/*
+	 * cpu that owns this page
+	 */
+	unsigned short       cpu;
+	/*
+	 * type(context) of this page
+	 */
+	unsigned short       type;
+};
+
 static void put_pages_on_tcd_daemon_list(struct page_collection *pc,
 					 struct cfs_trace_cpu_data *tcd);
 
@@ -80,11 +125,11 @@ static struct cfs_trace_page *cfs_tage_alloc(gfp_t gfp)
 	 */
 	gfp |= __GFP_NOWARN;
 	page = alloc_page(gfp);
-	if (page == NULL)
+	if (!page)
 		return NULL;
 
 	tage = kmalloc(sizeof(*tage), gfp);
-	if (tage == NULL) {
+	if (!tage) {
 		__free_page(page);
 		return NULL;
 	}
@@ -96,9 +141,6 @@ static struct cfs_trace_page *cfs_tage_alloc(gfp_t gfp)
 
 static void cfs_tage_free(struct cfs_trace_page *tage)
 {
-	__LASSERT(tage != NULL);
-	__LASSERT(tage->page != NULL);
-
 	__free_page(tage->page);
 	kfree(tage);
 	atomic_dec(&cfs_tage_allocated);
@@ -107,9 +149,6 @@ static void cfs_tage_free(struct cfs_trace_page *tage)
 static void cfs_tage_to_tail(struct cfs_trace_page *tage,
 			     struct list_head *queue)
 {
-	__LASSERT(tage != NULL);
-	__LASSERT(queue != NULL);
-
 	list_move_tail(&tage->linkage, queue);
 }
 
@@ -127,7 +166,7 @@ int cfs_trace_refill_stock(struct cfs_trace_cpu_data *tcd, gfp_t gfp,
 		struct cfs_trace_page *tage;
 
 		tage = cfs_tage_alloc(gfp);
-		if (tage == NULL)
+		if (!tage)
 			break;
 		list_add_tail(&tage->linkage, stock);
 	}
@@ -154,7 +193,7 @@ cfs_trace_get_tage_try(struct cfs_trace_cpu_data *tcd, unsigned long len)
 			list_del_init(&tage->linkage);
 		} else {
 			tage = cfs_tage_alloc(GFP_ATOMIC);
-			if (unlikely(tage == NULL)) {
+			if (unlikely(!tage)) {
 				if ((!memory_pressure_get() ||
 				     in_interrupt()) && printk_ratelimit())
 					printk(KERN_WARNING
@@ -227,7 +266,7 @@ static struct cfs_trace_page *cfs_trace_get_tage(struct cfs_trace_cpu_data *tcd,
 	}
 
 	tage = cfs_trace_get_tage_try(tcd, len);
-	if (tage != NULL)
+	if (tage)
 		return tage;
 	if (thread_running)
 		cfs_tcd_shrink(tcd);
@@ -278,10 +317,11 @@ int libcfs_debug_vmsg2(struct libcfs_debug_msg_data *msgdata,
 
 	/* cfs_trace_get_tcd() grabs a lock, which disables preemption and
 	 * pins us to a particular CPU.  This avoids an smp_processor_id()
-	 * warning on Linux when debugging is enabled. */
+	 * warning on Linux when debugging is enabled.
+	 */
 	cfs_set_ptldebug_header(&header, msgdata, CDEBUG_STACK());
 
-	if (tcd == NULL)		/* arch may not log in IRQ context */
+	if (!tcd)		/* arch may not log in IRQ context */
 		goto console;
 
 	if (tcd->tcd_cur_pages == 0)
@@ -301,14 +341,14 @@ int libcfs_debug_vmsg2(struct libcfs_debug_msg_data *msgdata,
 	if (libcfs_debug_binary)
 		known_size += sizeof(header);
 
-	/*/
+	/*
 	 * '2' used because vsnprintf return real size required for output
 	 * _without_ terminating NULL.
 	 * if needed is to small for this format.
 	 */
 	for (i = 0; i < 2; i++) {
 		tage = cfs_trace_get_tage(tcd, needed + known_size + 1);
-		if (tage == NULL) {
+		if (!tage) {
 			if (needed + known_size > PAGE_CACHE_SIZE)
 				mask |= D_ERROR;
 
@@ -352,7 +392,7 @@ int libcfs_debug_vmsg2(struct libcfs_debug_msg_data *msgdata,
 			break;
 	}
 
-	if (*(string_buf+needed-1) != '\n')
+	if (*(string_buf + needed - 1) != '\n')
 		printk(KERN_INFO "format at %s:%d:%s doesn't end in newline\n",
 		       file, msgdata->msg_line, msgdata->msg_fn);
 
@@ -384,30 +424,30 @@ int libcfs_debug_vmsg2(struct libcfs_debug_msg_data *msgdata,
 	__LASSERT(debug_buf == string_buf);
 
 	tage->used += needed;
-	__LASSERT (tage->used <= PAGE_CACHE_SIZE);
+	__LASSERT(tage->used <= PAGE_CACHE_SIZE);
 
 console:
 	if ((mask & libcfs_printk) == 0) {
 		/* no console output requested */
-		if (tcd != NULL)
+		if (tcd)
 			cfs_trace_put_tcd(tcd);
 		return 1;
 	}
 
-	if (cdls != NULL) {
+	if (cdls) {
 		if (libcfs_console_ratelimit &&
 		    cdls->cdls_next != 0 &&     /* not first time ever */
 		    !cfs_time_after(cfs_time_current(), cdls->cdls_next)) {
 			/* skipping a console message */
 			cdls->cdls_count++;
-			if (tcd != NULL)
+			if (tcd)
 				cfs_trace_put_tcd(tcd);
 			return 1;
 		}
 
-		if (cfs_time_after(cfs_time_current(), cdls->cdls_next +
-						       libcfs_console_max_delay
-						       + cfs_time_seconds(10))) {
+		if (cfs_time_after(cfs_time_current(),
+				   cdls->cdls_next + libcfs_console_max_delay +
+				   cfs_time_seconds(10))) {
 			/* last timeout was a long time ago */
 			cdls->cdls_delay /= libcfs_console_backoff * 4;
 		} else {
@@ -423,7 +463,7 @@ console:
 		cdls->cdls_next = (cfs_time_current() + cdls->cdls_delay) | 1;
 	}
 
-	if (tcd != NULL) {
+	if (tcd) {
 		cfs_print_to_console(&header, mask, string_buf, needed, file,
 				     msgdata->msg_fn);
 		cfs_trace_put_tcd(tcd);
@@ -431,18 +471,18 @@ console:
 		string_buf = cfs_trace_get_console_buffer();
 
 		needed = 0;
-		if (format1 != NULL) {
+		if (format1) {
 			va_copy(ap, args);
 			needed = vsnprintf(string_buf,
 					   CFS_TRACE_CONSOLE_BUFFER_SIZE,
 					   format1, ap);
 			va_end(ap);
 		}
-		if (format2 != NULL) {
+		if (format2) {
 			remain = CFS_TRACE_CONSOLE_BUFFER_SIZE - needed;
 			if (remain > 0) {
 				va_start(ap, format2);
-				needed += vsnprintf(string_buf+needed, remain,
+				needed += vsnprintf(string_buf + needed, remain,
 						    format2, ap);
 				va_end(ap);
 			}
@@ -453,7 +493,7 @@ console:
 		put_cpu();
 	}
 
-	if (cdls != NULL && cdls->cdls_count != 0) {
+	if (cdls && cdls->cdls_count != 0) {
 		string_buf = cfs_trace_get_console_buffer();
 
 		needed = snprintf(string_buf, CFS_TRACE_CONSOLE_BUFFER_SIZE,
@@ -497,7 +537,8 @@ panic_collect_pages(struct page_collection *pc)
 {
 	/* Do the collect_pages job on a single CPU: assumes that all other
 	 * CPUs have been stopped during a panic.  If this isn't true for some
-	 * arch, this will have to be implemented separately in each arch.  */
+	 * arch, this will have to be implemented separately in each arch.
+	 */
 	int			i;
 	int			j;
 	struct cfs_trace_cpu_data *tcd;
@@ -509,8 +550,7 @@ panic_collect_pages(struct page_collection *pc)
 		tcd->tcd_cur_pages = 0;
 
 		if (pc->pc_want_daemon_pages) {
-			list_splice_init(&tcd->tcd_daemon_pages,
-					     &pc->pc_pages);
+			list_splice_init(&tcd->tcd_daemon_pages, &pc->pc_pages);
 			tcd->tcd_cur_daemon_pages = 0;
 		}
 	}
@@ -527,7 +567,7 @@ static void collect_pages_on_all_cpus(struct page_collection *pc)
 			tcd->tcd_cur_pages = 0;
 			if (pc->pc_want_daemon_pages) {
 				list_splice_init(&tcd->tcd_daemon_pages,
-						     &pc->pc_pages);
+						 &pc->pc_pages);
 				tcd->tcd_cur_daemon_pages = 0;
 			}
 		}
@@ -558,7 +598,6 @@ static void put_pages_back_on_all_cpus(struct page_collection *pc)
 
 			list_for_each_entry_safe(tage, tmp, &pc->pc_pages,
 						 linkage) {
-
 				__LASSERT_TAGE_INVARIANT(tage);
 
 				if (tage->cpu != cpu || tage->type != i)
@@ -580,7 +619,8 @@ static void put_pages_back(struct page_collection *pc)
 /* Add pages to a per-cpu debug daemon ringbuffer.  This buffer makes sure that
  * we have a good amount of data at all times for dumping during an LBUG, even
  * if we have been steadily writing (and otherwise discarding) pages via the
- * debug daemon. */
+ * debug daemon.
+ */
 static void put_pages_on_tcd_daemon_list(struct page_collection *pc,
 					 struct cfs_trace_cpu_data *tcd)
 {
@@ -588,7 +628,6 @@ static void put_pages_on_tcd_daemon_list(struct page_collection *pc,
 	struct cfs_trace_page *tmp;
 
 	list_for_each_entry_safe(tage, tmp, &pc->pc_pages, linkage) {
-
 		__LASSERT_TAGE_INVARIANT(tage);
 
 		if (tage->cpu != tcd->tcd_cpu || tage->type != tcd->tcd_type)
@@ -674,12 +713,13 @@ int cfs_tracefile_dump_all_pages(char *filename)
 
 	cfs_tracefile_write_lock();
 
-	filp = filp_open(filename, O_CREAT|O_EXCL|O_WRONLY|O_LARGEFILE, 0600);
+	filp = filp_open(filename, O_CREAT | O_EXCL | O_WRONLY | O_LARGEFILE,
+			 0600);
 	if (IS_ERR(filp)) {
 		rc = PTR_ERR(filp);
 		filp = NULL;
 		pr_err("LustreError: can't open %s for dump: rc %d\n",
-			filename, rc);
+		       filename, rc);
 		goto out;
 	}
 
@@ -691,10 +731,10 @@ int cfs_tracefile_dump_all_pages(char *filename)
 	}
 
 	/* ok, for now, just write the pages.  in the future we'll be building
-	 * iobufs with the pages and calling generic_direct_IO */
+	 * iobufs with the pages and calling generic_direct_IO
+	 */
 	MMSPACE_OPEN;
 	list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) {
-
 		__LASSERT_TAGE_INVARIANT(tage);
 
 		buf = kmap(tage->page);
@@ -732,7 +772,6 @@ void cfs_trace_flush_pages(void)
 	pc.pc_want_daemon_pages = 1;
 	collect_pages(&pc);
 	list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) {
-
 		__LASSERT_TAGE_INVARIANT(tage);
 
 		list_del(&tage->linkage);
@@ -771,9 +810,10 @@ EXPORT_SYMBOL(cfs_trace_copyin_string);
 int cfs_trace_copyout_string(char __user *usr_buffer, int usr_buffer_nob,
 			     const char *knl_buffer, char *append)
 {
-	/* NB if 'append' != NULL, it's a single character to append to the
-	 * copied out string - usually "\n", for /proc entries and "" (i.e. a
-	 * terminating zero byte) for sysctl entries */
+	/*
+	 * NB if 'append' != NULL, it's a single character to append to the
+	 * copied out string - usually "\n" or "" (i.e. a terminating zero byte)
+	 */
 	int   nob = strlen(knl_buffer);
 
 	if (nob > usr_buffer_nob)
@@ -782,7 +822,7 @@ int cfs_trace_copyout_string(char __user *usr_buffer, int usr_buffer_nob,
 	if (copy_to_user(usr_buffer, knl_buffer, nob))
 		return -EFAULT;
 
-	if (append != NULL && nob < usr_buffer_nob) {
+	if (append && nob < usr_buffer_nob) {
 		if (copy_to_user(usr_buffer + nob, append, 1))
 			return -EFAULT;
 
@@ -799,7 +839,7 @@ int cfs_trace_allocate_string_buffer(char **str, int nob)
 		return -EINVAL;
 
 	*str = kmalloc(nob, GFP_KERNEL | __GFP_ZERO);
-	if (*str == NULL)
+	if (!*str)
 		return -ENOMEM;
 
 	return 0;
@@ -842,12 +882,15 @@ int cfs_trace_daemon_command(char *str)
 		memset(cfs_tracefile, 0, sizeof(cfs_tracefile));
 
 	} else if (strncmp(str, "size=", 5) == 0) {
-		cfs_tracefile_size = simple_strtoul(str + 5, NULL, 0);
-		if (cfs_tracefile_size < 10 || cfs_tracefile_size > 20480)
-			cfs_tracefile_size = CFS_TRACEFILE_SIZE;
-		else
-			cfs_tracefile_size <<= 20;
-
+		unsigned long tmp;
+
+		rc = kstrtoul(str + 5, 10, &tmp);
+		if (!rc) {
+			if (tmp < 10 || tmp > 20480)
+				cfs_tracefile_size = CFS_TRACEFILE_SIZE;
+			else
+				cfs_tracefile_size = tmp << 20;
+		}
 	} else if (strlen(str) >= sizeof(cfs_tracefile)) {
 		rc = -ENAMETOOLONG;
 	} else if (str[0] != '/') {
@@ -877,7 +920,7 @@ int cfs_trace_daemon_command_usrstr(void __user *usr_str, int usr_str_nob)
 		return rc;
 
 	rc = cfs_trace_copyin_string(str, usr_str_nob + 1,
-				 usr_str, usr_str_nob);
+				     usr_str, usr_str_nob);
 	if (rc == 0)
 		rc = cfs_trace_daemon_command(str);
 
@@ -977,7 +1020,7 @@ static int tracefiled(void *arg)
 			}
 		}
 		cfs_tracefile_read_unlock();
-		if (filp == NULL) {
+		if (!filp) {
 			put_pages_on_daemon_list(&pc);
 			__LASSERT(list_empty(&pc.pc_pages));
 			goto end_loop;
@@ -985,8 +1028,7 @@ static int tracefiled(void *arg)
 
 		MMSPACE_OPEN;
 
-		list_for_each_entry_safe(tage, tmp, &pc.pc_pages,
-						   linkage) {
+		list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) {
 			static loff_t f_pos;
 
 			__LASSERT_TAGE_INVARIANT(tage);
@@ -1017,8 +1059,7 @@ static int tracefiled(void *arg)
 			int i;
 
 			printk(KERN_ALERT "Lustre: trace pages aren't empty\n");
-			pr_err("total cpus(%d): ",
-				num_possible_cpus());
+			pr_err("total cpus(%d): ", num_possible_cpus());
 			for (i = 0; i < num_possible_cpus(); i++)
 				if (cpu_online(i))
 					pr_cont("%d(on) ", i);
@@ -1028,9 +1069,9 @@ static int tracefiled(void *arg)
 
 			i = 0;
 			list_for_each_entry_safe(tage, tmp, &pc.pc_pages,
-						     linkage)
+						 linkage)
 				pr_err("page %d belongs to cpu %d\n",
-					++i, tage->cpu);
+				       ++i, tage->cpu);
 			pr_err("There are %d pages unwritten\n", i);
 		}
 		__LASSERT(list_empty(&pc.pc_pages));
@@ -1056,6 +1097,7 @@ end_loop:
 int cfs_trace_start_thread(void)
 {
 	struct tracefiled_ctl *tctl = &trace_tctl;
+	struct task_struct *task;
 	int rc = 0;
 
 	mutex_lock(&cfs_trace_thread_mutex);
@@ -1067,8 +1109,9 @@ int cfs_trace_start_thread(void)
 	init_waitqueue_head(&tctl->tctl_waitq);
 	atomic_set(&tctl->tctl_shutdown, 0);
 
-	if (IS_ERR(kthread_run(tracefiled, tctl, "ktracefiled"))) {
-		rc = -ECHILD;
+	task = kthread_run(tracefiled, tctl, "ktracefiled");
+	if (IS_ERR(task)) {
+		rc = PTR_ERR(task);
 		goto out;
 	}
 
@@ -1135,7 +1178,7 @@ static void trace_cleanup_on_all_cpus(void)
 			tcd->tcd_shutting_down = 1;
 
 			list_for_each_entry_safe(tage, tmp, &tcd->tcd_pages,
-							   linkage) {
+						 linkage) {
 				__LASSERT_TAGE_INVARIANT(tage);
 
 				list_del(&tage->linkage);
diff --git a/drivers/staging/lustre/lustre/libcfs/tracefile.h b/drivers/staging/lustre/lustre/libcfs/tracefile.h
index 7bf1471..4c77f90 100644
--- a/drivers/staging/lustre/lustre/libcfs/tracefile.h
+++ b/drivers/staging/lustre/lustre/libcfs/tracefile.h
@@ -39,12 +39,12 @@
 
 #include "../../include/linux/libcfs/libcfs.h"
 
-typedef enum {
+enum cfs_trace_buf_type {
 	CFS_TCD_TYPE_PROC = 0,
 	CFS_TCD_TYPE_SOFTIRQ,
 	CFS_TCD_TYPE_IRQ,
 	CFS_TCD_TYPE_MAX
-} cfs_trace_buf_type_t;
+};
 
 /* trace file lock routines */
 
@@ -101,8 +101,10 @@ int cfs_trace_max_debug_mb(void);
 
 #define CFS_TRACEFILE_SIZE (500 << 20)
 
-/* Size of a buffer for sprinting console messages if we can't get a page
- * from system */
+/*
+ * Size of a buffer for sprinting console messages if we can't get a page
+ * from system
+ */
 #define CFS_TRACE_CONSOLE_BUFFER_SIZE   1024
 
 union cfs_trace_data_union {
@@ -185,66 +187,15 @@ union cfs_trace_data_union {
 extern union cfs_trace_data_union (*cfs_trace_data[TCD_MAX_TYPES])[NR_CPUS];
 
 #define cfs_tcd_for_each(tcd, i, j)				       \
-    for (i = 0; cfs_trace_data[i] != NULL; i++)			   \
-	for (j = 0, ((tcd) = &(*cfs_trace_data[i])[j].tcd);	       \
-	     j < num_possible_cpus();				 \
-	     j++, (tcd) = &(*cfs_trace_data[i])[j].tcd)
+	for (i = 0; cfs_trace_data[i]; i++)				\
+		for (j = 0, ((tcd) = &(*cfs_trace_data[i])[j].tcd);	\
+		     j < num_possible_cpus();				 \
+		     j++, (tcd) = &(*cfs_trace_data[i])[j].tcd)
 
 #define cfs_tcd_for_each_type_lock(tcd, i, cpu)			   \
-    for (i = 0; cfs_trace_data[i] &&				      \
-	 (tcd = &(*cfs_trace_data[i])[cpu].tcd) &&			\
-	 cfs_trace_lock_tcd(tcd, 1); cfs_trace_unlock_tcd(tcd, 1), i++)
-
-/* XXX nikita: this declaration is internal to tracefile.c and should probably
- * be moved there */
-struct page_collection {
-	struct list_head	pc_pages;
-	/*
-	 * if this flag is set, collect_pages() will spill both
-	 * ->tcd_daemon_pages and ->tcd_pages to the ->pc_pages. Otherwise,
-	 * only ->tcd_pages are spilled.
-	 */
-	int		pc_want_daemon_pages;
-};
-
-/* XXX nikita: this declaration is internal to tracefile.c and should probably
- * be moved there */
-struct tracefiled_ctl {
-	struct completion	tctl_start;
-	struct completion	tctl_stop;
-	wait_queue_head_t		tctl_waitq;
-	pid_t			tctl_pid;
-	atomic_t		tctl_shutdown;
-};
-
-/*
- * small data-structure for each page owned by tracefiled.
- */
-/* XXX nikita: this declaration is internal to tracefile.c and should probably
- * be moved there */
-struct cfs_trace_page {
-	/*
-	 * page itself
-	 */
-	struct page	  *page;
-	/*
-	 * linkage into one of the lists in trace_data_union or
-	 * page_collection
-	 */
-	struct list_head	   linkage;
-	/*
-	 * number of bytes used within this page
-	 */
-	unsigned int	 used;
-	/*
-	 * cpu that owns this page
-	 */
-	unsigned short       cpu;
-	/*
-	 * type(context) of this page
-	 */
-	unsigned short       type;
-};
+	for (i = 0; cfs_trace_data[i] &&				\
+	     (tcd = &(*cfs_trace_data[i])[cpu].tcd) &&			\
+	     cfs_trace_lock_tcd(tcd, 1); cfs_trace_unlock_tcd(tcd, 1), i++)
 
 void cfs_set_ptldebug_header(struct ptldebug_header *header,
 			     struct libcfs_debug_msg_data *m,
@@ -257,7 +208,7 @@ int cfs_trace_lock_tcd(struct cfs_trace_cpu_data *tcd, int walking);
 void cfs_trace_unlock_tcd(struct cfs_trace_cpu_data *tcd, int walking);
 
 extern char *cfs_trace_console_buffers[NR_CPUS][CFS_TCD_TYPE_MAX];
-cfs_trace_buf_type_t cfs_trace_buf_idx_get(void);
+enum cfs_trace_buf_type cfs_trace_buf_idx_get(void);
 
 static inline char *
 cfs_trace_get_console_buffer(void)
@@ -279,8 +230,7 @@ cfs_trace_get_tcd(void)
 	return tcd;
 }
 
-static inline void
-cfs_trace_put_tcd (struct cfs_trace_cpu_data *tcd)
+static inline void cfs_trace_put_tcd(struct cfs_trace_cpu_data *tcd)
 {
 	cfs_trace_unlock_tcd(tcd, 0);
 
@@ -290,9 +240,6 @@ cfs_trace_put_tcd (struct cfs_trace_cpu_data *tcd)
 int cfs_trace_refill_stock(struct cfs_trace_cpu_data *tcd, gfp_t gfp,
 			   struct list_head *stock);
 
-int cfs_tcd_owns_tage(struct cfs_trace_cpu_data *tcd,
-		      struct cfs_trace_page *tage);
-
 void cfs_trace_assertion_failed(const char *str,
 				struct libcfs_debug_msg_data *m);
 
@@ -308,8 +255,8 @@ do {								    \
 
 #define __LASSERT_TAGE_INVARIANT(tage)				  \
 do {								    \
-	__LASSERT(tage != NULL);					\
-	__LASSERT(tage->page != NULL);				  \
+	__LASSERT(tage);					\
+	__LASSERT(tage->page);				  \
 	__LASSERT(tage->used <= PAGE_CACHE_SIZE);			 \
 	__LASSERT(page_count(tage->page) > 0);		      \
 } while (0)
diff --git a/drivers/staging/lustre/lustre/libcfs/workitem.c b/drivers/staging/lustre/lustre/libcfs/workitem.c
index 60bb88a..136bc13 100644
--- a/drivers/staging/lustre/lustre/libcfs/workitem.c
+++ b/drivers/staging/lustre/lustre/libcfs/workitem.c
@@ -46,18 +46,21 @@
 #define CFS_WS_NAME_LEN	 16
 
 struct cfs_wi_sched {
-	struct list_head		ws_list;	/* chain on global list */
+	/* chain on global list */
+	struct list_head		ws_list;
 	/** serialised workitems */
 	spinlock_t		ws_lock;
 	/** where schedulers sleep */
 	wait_queue_head_t		ws_waitq;
 	/** concurrent workitems */
 	struct list_head		ws_runq;
-	/** rescheduled running-workitems, a workitem can be rescheduled
+	/**
+	 * rescheduled running-workitems, a workitem can be rescheduled
 	 * while running in wi_action(), but we don't to execute it again
 	 * unless it returns from wi_action(), so we put it on ws_rerunq
 	 * while rescheduling, and move it to runq after it returns
-	 * from wi_action() */
+	 * from wi_action()
+	 */
 	struct list_head		ws_rerunq;
 	/** CPT-table for this scheduler */
 	struct cfs_cpt_table	*ws_cptab;
@@ -128,8 +131,6 @@ cfs_wi_exit(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
 
 	wi->wi_scheduled = 1; /* LBUG future schedule attempts */
 	spin_unlock(&sched->ws_lock);
-
-	return;
 }
 EXPORT_SYMBOL(cfs_wi_exit);
 
@@ -163,7 +164,7 @@ cfs_wi_deschedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
 		wi->wi_scheduled = 0;
 	}
 
-	LASSERT (list_empty(&wi->wi_list));
+	LASSERT(list_empty(&wi->wi_list));
 
 	spin_unlock(&sched->ws_lock);
 	return rc;
@@ -186,7 +187,7 @@ cfs_wi_schedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
 	spin_lock(&sched->ws_lock);
 
 	if (!wi->wi_scheduled) {
-		LASSERT (list_empty(&wi->wi_list));
+		LASSERT(list_empty(&wi->wi_list));
 
 		wi->wi_scheduled = 1;
 		sched->ws_nscheduled++;
@@ -198,21 +199,19 @@ cfs_wi_schedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
 		}
 	}
 
-	LASSERT (!list_empty(&wi->wi_list));
+	LASSERT(!list_empty(&wi->wi_list));
 	spin_unlock(&sched->ws_lock);
-	return;
 }
 EXPORT_SYMBOL(cfs_wi_schedule);
 
-static int
-cfs_wi_scheduler (void *arg)
+static int cfs_wi_scheduler(void *arg)
 {
 	struct cfs_wi_sched	*sched = (struct cfs_wi_sched *)arg;
 
 	cfs_block_allsigs();
 
 	/* CPT affinity scheduler? */
-	if (sched->ws_cptab != NULL)
+	if (sched->ws_cptab)
 		if (cfs_cpt_bind(sched->ws_cptab, sched->ws_cpt) != 0)
 			CWARN("Failed to bind %s on CPT %d\n",
 			      sched->ws_name, sched->ws_cpt);
@@ -234,8 +233,8 @@ cfs_wi_scheduler (void *arg)
 
 		while (!list_empty(&sched->ws_runq) &&
 		       nloops < CFS_WI_RESCHED) {
-			wi = list_entry(sched->ws_runq.next,
-					    cfs_workitem_t, wi_list);
+			wi = list_entry(sched->ws_runq.next, cfs_workitem_t,
+					wi_list);
 			LASSERT(wi->wi_scheduled && !wi->wi_running);
 
 			list_del_init(&wi->wi_list);
@@ -261,14 +260,16 @@ cfs_wi_scheduler (void *arg)
 
 			LASSERT(wi->wi_scheduled);
 			/* wi is rescheduled, should be on rerunq now, we
-			 * move it to runq so it can run action now */
+			 * move it to runq so it can run action now
+			 */
 			list_move_tail(&wi->wi_list, &sched->ws_runq);
 		}
 
 		if (!list_empty(&sched->ws_runq)) {
 			spin_unlock(&sched->ws_lock);
 			/* don't sleep because some workitems still
-			 * expect me to come back soon */
+			 * expect me to come back soon
+			 */
 			cond_resched();
 			spin_lock(&sched->ws_lock);
 			continue;
@@ -343,11 +344,11 @@ cfs_wi_sched_create(char *name, struct cfs_cpt_table *cptab,
 
 	LASSERT(cfs_wi_data.wi_init);
 	LASSERT(!cfs_wi_data.wi_stopping);
-	LASSERT(cptab == NULL || cpt == CFS_CPT_ANY ||
+	LASSERT(!cptab || cpt == CFS_CPT_ANY ||
 		(cpt >= 0 && cpt < cfs_cpt_number(cptab)));
 
 	LIBCFS_ALLOC(sched, sizeof(*sched));
-	if (sched == NULL)
+	if (!sched)
 		return -ENOMEM;
 
 	strlcpy(sched->ws_name, name, CFS_WS_NAME_LEN);
@@ -376,7 +377,7 @@ cfs_wi_sched_create(char *name, struct cfs_cpt_table *cptab,
 		sched->ws_starting++;
 		spin_unlock(&cfs_wi_data.wi_glock);
 
-		if (sched->ws_cptab != NULL && sched->ws_cpt >= 0) {
+		if (sched->ws_cptab && sched->ws_cpt >= 0) {
 			snprintf(name, sizeof(name), "%s_%02d_%02u",
 				 sched->ws_name, sched->ws_cpt,
 				 sched->ws_nthreads);
@@ -455,7 +456,7 @@ cfs_wi_shutdown(void)
 	}
 	while (!list_empty(&cfs_wi_data.wi_scheds)) {
 		sched = list_entry(cfs_wi_data.wi_scheds.next,
-				       struct cfs_wi_sched, ws_list);
+				   struct cfs_wi_sched, ws_list);
 		list_del(&sched->ws_list);
 		LIBCFS_FREE(sched, sizeof(*sched));
 	}
diff --git a/drivers/staging/lustre/lustre/llite/dcache.c b/drivers/staging/lustre/lustre/llite/dcache.c
index bc179e5..0bc0fb9f 100644
--- a/drivers/staging/lustre/lustre/llite/dcache.c
+++ b/drivers/staging/lustre/lustre/llite/dcache.c
@@ -60,7 +60,7 @@ static void ll_release(struct dentry *de)
 {
 	struct ll_dentry_data *lld;
 
-	LASSERT(de != NULL);
+	LASSERT(de);
 	lld = ll_d2d(de);
 	if (!lld) /* NFS copies the de->d_op methods (bug 4655) */
 		return;
@@ -80,7 +80,8 @@ static void ll_release(struct dentry *de)
  * This avoids a race where ll_lookup_it() instantiates a dentry, but we get
  * an AST before calling d_revalidate_it().  The dentry still exists (marked
  * INVALID) so d_lookup() matches it, but we have no lock on it (so
- * lock_match() fails) and we spin around real_lookup(). */
+ * lock_match() fails) and we spin around real_lookup().
+ */
 static int ll_dcompare(const struct dentry *parent, const struct dentry *dentry,
 		       unsigned int len, const char *str,
 		       const struct qstr *name)
@@ -117,7 +118,8 @@ static inline int return_if_equal(struct ldlm_lock *lock, void *data)
 /* find any ldlm lock of the inode in mdc and lov
  * return 0    not find
  *	1    find one
- *      < 0    error */
+ *      < 0    error
+ */
 static int find_cbdata(struct inode *inode)
 {
 	struct ll_sb_info *sbi = ll_i2sbi(inode);
@@ -163,10 +165,12 @@ static int ll_ddelete(const struct dentry *de)
 	/* Disable this piece of code temporarily because this is called
 	 * inside dcache_lock so it's not appropriate to do lots of work
 	 * here. ATTENTION: Before this piece of code enabling, LU-2487 must be
-	 * resolved. */
+	 * resolved.
+	 */
 #if 0
 	/* if not ldlm lock for this inode, set i_nlink to 0 so that
-	 * this inode can be recycled later b=20433 */
+	 * this inode can be recycled later b=20433
+	 */
 	if (d_really_is_positive(de) && !find_cbdata(d_inode(de)))
 		clear_nlink(d_inode(de));
 #endif
@@ -178,8 +182,6 @@ static int ll_ddelete(const struct dentry *de)
 
 int ll_d_init(struct dentry *de)
 {
-	LASSERT(de != NULL);
-
 	CDEBUG(D_DENTRY, "ldd on dentry %pd (%p) parent %p inode %p refc %d\n",
 		de, de, de->d_parent, d_inode(de),
 		d_count(de));
@@ -218,7 +220,8 @@ void ll_intent_drop_lock(struct lookup_intent *it)
 		ldlm_lock_decref(&handle, it->d.lustre.it_lock_mode);
 
 		/* bug 494: intent_release may be called multiple times, from
-		 * this thread and we don't want to double-decref this lock */
+		 * this thread and we don't want to double-decref this lock
+		 */
 		it->d.lustre.it_lock_mode = 0;
 		if (it->d.lustre.it_remote_lock_mode != 0) {
 			handle.cookie = it->d.lustre.it_remote_lock_handle;
@@ -251,8 +254,6 @@ void ll_invalidate_aliases(struct inode *inode)
 {
 	struct dentry *dentry;
 
-	LASSERT(inode != NULL);
-
 	CDEBUG(D_INODE, "marking dentries for ino %lu/%u(%p) invalid\n",
 	       inode->i_ino, inode->i_generation, inode);
 
@@ -286,9 +287,7 @@ int ll_revalidate_it_finish(struct ptlrpc_request *request,
 
 void ll_lookup_finish_locks(struct lookup_intent *it, struct inode *inode)
 {
-	LASSERT(it != NULL);
-
-	if (it->d.lustre.it_lock_mode && inode != NULL) {
+	if (it->d.lustre.it_lock_mode && inode) {
 		struct ll_sb_info *sbi = ll_i2sbi(inode);
 
 		CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u)\n",
@@ -300,7 +299,8 @@ void ll_lookup_finish_locks(struct lookup_intent *it, struct inode *inode)
 	if (it->it_op == IT_LOOKUP || it->it_op == IT_GETATTR) {
 		/* on 2.6 there are situation when several lookups and
 		 * revalidations may be requested during single operation.
-		 * therefore, we don't release intent here -bzzz */
+		 * therefore, we don't release intent here -bzzz
+		 */
 		ll_intent_drop_lock(it);
 	}
 }
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index 36b1055..bd88a3b 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -190,8 +190,6 @@ static int ll_dir_filler(void *_hash, struct page *page0)
 	} else if (rc == 0) {
 		body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY);
 		/* Checked by mdc_readpage() */
-		LASSERT(body != NULL);
-
 		if (body->valid & OBD_MD_FLSIZE)
 			cl_isize_write(inode, body->size);
 
@@ -245,7 +243,7 @@ void ll_release_page(struct page *page, int remove)
 	kunmap(page);
 	if (remove) {
 		lock_page(page);
-		if (likely(page->mapping != NULL))
+		if (likely(page->mapping))
 			truncate_complete_page(page->mapping, page);
 		unlock_page(page);
 	}
@@ -334,7 +332,7 @@ struct page *ll_get_dir_page(struct inode *dir, __u64 hash,
 	struct lustre_handle lockh;
 	struct lu_dirpage *dp;
 	struct page *page;
-	ldlm_mode_t mode;
+	enum ldlm_mode mode;
 	int rc;
 	__u64 start = 0;
 	__u64 end = 0;
@@ -381,7 +379,8 @@ struct page *ll_get_dir_page(struct inode *dir, __u64 hash,
 				 &it.d.lustre.it_lock_handle, dir, NULL);
 	} else {
 		/* for cross-ref object, l_ast_data of the lock may not be set,
-		 * we reset it here */
+		 * we reset it here
+		 */
 		md_set_lock_data(ll_i2sbi(dir)->ll_md_exp, &lockh.cookie,
 				 dir, NULL);
 	}
@@ -393,7 +392,7 @@ struct page *ll_get_dir_page(struct inode *dir, __u64 hash,
 		CERROR("dir page locate: "DFID" at %llu: rc %ld\n",
 		       PFID(ll_inode2fid(dir)), lhash, PTR_ERR(page));
 		goto out_unlock;
-	} else if (page != NULL) {
+	} else if (page) {
 		/*
 		 * XXX nikita: not entirely correct handling of a corner case:
 		 * suppose hash chain of entries with hash value HASH crosses
@@ -499,7 +498,7 @@ int ll_dir_read(struct inode *inode, struct dir_context *ctx)
 			__u64 next;
 
 			dp = page_address(page);
-			for (ent = lu_dirent_start(dp); ent != NULL && !done;
+			for (ent = lu_dirent_start(dp); ent && !done;
 			     ent = lu_dirent_next(ent)) {
 				__u16	  type;
 				int	    namelen;
@@ -689,7 +688,7 @@ int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
 	struct obd_device *mgc = lsi->lsi_mgc;
 	int lum_size;
 
-	if (lump != NULL) {
+	if (lump) {
 		/*
 		 * This is coming from userspace, so should be in
 		 * local endian.  But the MDS would like it in little
@@ -725,7 +724,7 @@ int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
 	if (IS_ERR(op_data))
 		return PTR_ERR(op_data);
 
-	if (lump != NULL && lump->lmm_magic == cpu_to_le32(LMV_USER_MAGIC))
+	if (lump && lump->lmm_magic == cpu_to_le32(LMV_USER_MAGIC))
 		op_data->op_cli_flags |= CLI_SET_MEA;
 
 	/* swabbing is done in lov_setstripe() on server side */
@@ -739,8 +738,9 @@ int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
 	}
 
 	/* In the following we use the fact that LOV_USER_MAGIC_V1 and
-	 LOV_USER_MAGIC_V3 have the same initial fields so we do not
-	 need to make the distinction between the 2 versions */
+	 * LOV_USER_MAGIC_V3 have the same initial fields so we do not
+	 * need to make the distinction between the 2 versions
+	 */
 	if (set_default && mgc->u.cli.cl_mgc_mgsexp) {
 		char *param = NULL;
 		char *buf;
@@ -812,7 +812,6 @@ int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp,
 	}
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	LASSERT(body != NULL);
 
 	lmmsize = body->eadatasize;
 
@@ -824,7 +823,6 @@ int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp,
 
 	lmm = req_capsule_server_sized_get(&req->rq_pill,
 					   &RMF_MDT_MD, lmmsize);
-	LASSERT(lmm != NULL);
 
 	/*
 	 * This is coming from the MDS, so is probably in
@@ -933,7 +931,8 @@ static int ll_ioc_copy_start(struct super_block *sb, struct hsm_copy *copy)
 		}
 
 		/* Store it the hsm_copy for later copytool use.
-		 * Always modified even if no lsm. */
+		 * Always modified even if no lsm.
+		 */
 		copy->hc_data_version = data_version;
 	}
 
@@ -1010,11 +1009,13 @@ static int ll_ioc_copy_end(struct super_block *sb, struct hsm_copy *copy)
 		}
 
 		/* Store it the hsm_copy for later copytool use.
-		 * Always modified even if no lsm. */
+		 * Always modified even if no lsm.
+		 */
 		hpk.hpk_data_version = data_version;
 
 		/* File could have been stripped during archiving, so we need
-		 * to check anyway. */
+		 * to check anyway.
+		 */
 		if ((copy->hc_hai.hai_action == HSMA_ARCHIVE) &&
 		    (copy->hc_data_version != data_version)) {
 			CDEBUG(D_HSM, "File data version mismatched. File content was changed during archiving. "
@@ -1026,7 +1027,8 @@ static int ll_ioc_copy_end(struct super_block *sb, struct hsm_copy *copy)
 			 * the cdt will loop on retried archive requests.
 			 * The policy engine will ask for a new archive later
 			 * when the file will not be modified for some tunable
-			 * time */
+			 * time
+			 */
 			/* we do not notify caller */
 			hpk.hpk_flags &= ~HP_FLAG_RETRY;
 			/* hpk_errval must be >= 0 */
@@ -1154,7 +1156,8 @@ static int quotactl_ioctl(struct ll_sb_info *sbi, struct if_quotactl *qctl)
 			return rc;
 		}
 		/* If QIF_SPACE is not set, client should collect the
-		 * space usage from OSSs by itself */
+		 * space usage from OSSs by itself
+		 */
 		if (cmd == Q_GETQUOTA &&
 		    !(oqctl->qc_dqblk.dqb_valid & QIF_SPACE) &&
 		    !oqctl->qc_dqblk.dqb_curspace) {
@@ -1205,7 +1208,8 @@ out:
 
 /* This function tries to get a single name component,
  * to send to the server. No actual path traversal involved,
- * so we limit to NAME_MAX */
+ * so we limit to NAME_MAX
+ */
 static char *ll_getname(const char __user *filename)
 {
 	int ret = 0, len;
@@ -1326,7 +1330,7 @@ out_free:
 			return rc;
 
 		data = (void *)buf;
-		if (data->ioc_inlbuf1 == NULL || data->ioc_inlbuf2 == NULL ||
+		if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 ||
 		    data->ioc_inllen1 == 0 || data->ioc_inllen2 == 0) {
 			rc = -EINVAL;
 			goto lmv_out_free;
@@ -1461,7 +1465,7 @@ free_lmv:
 		if (request) {
 			body = req_capsule_server_get(&request->rq_pill,
 						      &RMF_MDT_BODY);
-			LASSERT(body != NULL);
+			LASSERT(body);
 		} else {
 			goto out_req;
 		}
@@ -1539,7 +1543,7 @@ out_req:
 			return rc;
 
 		lmm = libcfs_kvzalloc(lmmsize, GFP_NOFS);
-		if (lmm == NULL)
+		if (!lmm)
 			return -ENOMEM;
 		if (copy_from_user(lmm, lum, lmmsize)) {
 			rc = -EFAULT;
@@ -1688,7 +1692,6 @@ out_quotactl:
 	    if (sbi->ll_flags & LL_SBI_RMT_CLIENT && is_root_inode(inode)) {
 		struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
 
-		LASSERT(fd != NULL);
 		rc = rct_add(&sbi->ll_rct, current_pid(), arg);
 		if (!rc)
 			fd->fd_flags |= LL_FILE_RMTACL;
@@ -1757,7 +1760,7 @@ out_quotactl:
 			return -E2BIG;
 
 		hur = libcfs_kvzalloc(totalsize, GFP_NOFS);
-		if (hur == NULL)
+		if (!hur)
 			return -ENOMEM;
 
 		/* Copy the whole struct */
@@ -1808,7 +1811,8 @@ out_quotactl:
 		hpk.hpk_data_version = 0;
 
 		/* File may not exist in Lustre; all progress
-		 * reported to Lustre root */
+		 * reported to Lustre root
+		 */
 		rc = obd_iocontrol(cmd, sbi->ll_md_exp, sizeof(hpk), &hpk,
 				   NULL);
 		return rc;
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index 132d19b..4c25cf2 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -65,7 +65,7 @@ static struct ll_file_data *ll_file_data_get(void)
 	struct ll_file_data *fd;
 
 	fd = kmem_cache_alloc(ll_file_data_slab, GFP_NOFS | __GFP_ZERO);
-	if (fd == NULL)
+	if (!fd)
 		return NULL;
 	fd->fd_write_failed = false;
 	return fd;
@@ -73,7 +73,7 @@ static struct ll_file_data *ll_file_data_get(void)
 
 static void ll_file_data_put(struct ll_file_data *fd)
 {
-	if (fd != NULL)
+	if (fd)
 		kmem_cache_free(ll_file_data_slab, fd);
 }
 
@@ -134,7 +134,7 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp,
 	int epoch_close = 1;
 	int rc;
 
-	if (obd == NULL) {
+	if (!obd) {
 		/*
 		 * XXX: in case of LMV, is this correct to access
 		 * ->exp_handle?
@@ -153,7 +153,7 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp,
 	}
 
 	ll_prepare_close(inode, op_data, och);
-	if (data_version != NULL) {
+	if (data_version) {
 		/* Pass in data_version implies release. */
 		op_data->op_bias |= MDS_HSM_RELEASE;
 		op_data->op_data_version = *data_version;
@@ -166,7 +166,8 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp,
 		/* This close must have the epoch closed. */
 		LASSERT(epoch_close);
 		/* MDS has instructed us to obtain Size-on-MDS attribute from
-		 * OSTs and send setattr to back to MDS. */
+		 * OSTs and send setattr to back to MDS.
+		 */
 		rc = ll_som_update(inode, op_data);
 		if (rc) {
 			CERROR("inode %lu mdc Size-on-MDS update failed: rc = %d\n",
@@ -179,7 +180,8 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp,
 	}
 
 	/* DATA_MODIFIED flag was successfully sent on close, cancel data
-	 * modification flag. */
+	 * modification flag.
+	 */
 	if (rc == 0 && (op_data->op_bias & MDS_DATA_MODIFIED)) {
 		struct ll_inode_info *lli = ll_i2info(inode);
 
@@ -242,7 +244,8 @@ int ll_md_real_close(struct inode *inode, fmode_t fmode)
 	mutex_lock(&lli->lli_och_mutex);
 	if (*och_usecount > 0) {
 		/* There are still users of this handle, so skip
-		 * freeing it. */
+		 * freeing it.
+		 */
 		mutex_unlock(&lli->lli_och_mutex);
 		return 0;
 	}
@@ -251,9 +254,10 @@ int ll_md_real_close(struct inode *inode, fmode_t fmode)
 	*och_p = NULL;
 	mutex_unlock(&lli->lli_och_mutex);
 
-	if (och != NULL) {
+	if (och) {
 		/* There might be a race and this handle may already
-		   be closed. */
+		 * be closed.
+		 */
 		rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp,
 					       inode, och, NULL);
 	}
@@ -276,11 +280,12 @@ static int ll_md_close(struct obd_export *md_exp, struct inode *inode,
 	if (unlikely(fd->fd_flags & LL_FILE_GROUP_LOCKED))
 		ll_put_grouplock(inode, file, fd->fd_grouplock.cg_gid);
 
-	if (fd->fd_lease_och != NULL) {
+	if (fd->fd_lease_och) {
 		bool lease_broken;
 
 		/* Usually the lease is not released when the
-		 * application crashed, we need to release here. */
+		 * application crashed, we need to release here.
+		 */
 		rc = ll_lease_close(fd->fd_lease_och, inode, &lease_broken);
 		CDEBUG(rc ? D_ERROR : D_INODE, "Clean up lease "DFID" %d/%d\n",
 			PFID(&lli->lli_fid), rc, lease_broken);
@@ -288,14 +293,15 @@ static int ll_md_close(struct obd_export *md_exp, struct inode *inode,
 		fd->fd_lease_och = NULL;
 	}
 
-	if (fd->fd_och != NULL) {
+	if (fd->fd_och) {
 		rc = ll_close_inode_openhandle(md_exp, inode, fd->fd_och, NULL);
 		fd->fd_och = NULL;
 		goto out;
 	}
 
 	/* Let's see if we have good enough OPEN lock on the file and if
-	   we can skip talking to MDS */
+	 * we can skip talking to MDS
+	 */
 
 	mutex_lock(&lli->lli_och_mutex);
 	if (fd->fd_omode & FMODE_WRITE) {
@@ -343,7 +349,6 @@ int ll_file_release(struct inode *inode, struct file *file)
 	if (sbi->ll_flags & LL_SBI_RMT_CLIENT && is_root_inode(inode)) {
 		struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
 
-		LASSERT(fd != NULL);
 		if (unlikely(fd->fd_flags & LL_FILE_RMTACL)) {
 			fd->fd_flags &= ~LL_FILE_RMTACL;
 			rct_del(&sbi->ll_rct, current_pid());
@@ -355,11 +360,12 @@ int ll_file_release(struct inode *inode, struct file *file)
 	if (!is_root_inode(inode))
 		ll_stats_ops_tally(sbi, LPROC_LL_RELEASE, 1);
 	fd = LUSTRE_FPRIVATE(file);
-	LASSERT(fd != NULL);
+	LASSERT(fd);
 
-	/* The last ref on @file, maybe not the owner pid of statahead.
+	/* The last ref on @file, maybe not be the owner pid of statahead.
 	 * Different processes can open the same dir, "ll_opendir_key" means:
-	 * it is me that should stop the statahead thread. */
+	 * it is me that should stop the statahead thread.
+	 */
 	if (S_ISDIR(inode->i_mode) && lli->lli_opendir_key == fd &&
 	    lli->lli_opendir_pid != 0)
 		ll_stop_statahead(inode, lli->lli_opendir_key);
@@ -396,16 +402,16 @@ static int ll_intent_file_open(struct dentry *dentry, void *lmm,
 	__u32 opc = LUSTRE_OPC_ANY;
 	int rc;
 
-	/* Usually we come here only for NFSD, and we want open lock.
-	   But we can also get here with pre 2.6.15 patchless kernels, and in
-	   that case that lock is also ok */
+	/* Usually we come here only for NFSD, and we want open lock. */
 	/* We can also get here if there was cached open handle in revalidate_it
 	 * but it disappeared while we were getting from there to ll_file_open.
 	 * But this means this file was closed and immediately opened which
-	 * makes a good candidate for using OPEN lock */
+	 * makes a good candidate for using OPEN lock
+	 */
 	/* If lmmsize & lmm are not 0, we are just setting stripe info
-	 * parameters. No need for the open lock */
-	if (lmm == NULL && lmmsize == 0) {
+	 * parameters. No need for the open lock
+	 */
+	if (!lmm && lmmsize == 0) {
 		itp->it_flags |= MDS_OPEN_LOCK;
 		if (itp->it_flags & FMODE_WRITE)
 			opc = LUSTRE_OPC_CREATE;
@@ -492,7 +498,7 @@ static int ll_local_open(struct file *file, struct lookup_intent *it,
 
 	LASSERT(!LUSTRE_FPRIVATE(file));
 
-	LASSERT(fd != NULL);
+	LASSERT(fd);
 
 	if (och) {
 		struct ptlrpc_request *req = it->d.lustre.it_data;
@@ -543,7 +549,7 @@ int ll_file_open(struct inode *inode, struct file *file)
 	file->private_data = NULL; /* prevent ll_local_open assertion */
 
 	fd = ll_file_data_get();
-	if (fd == NULL) {
+	if (!fd) {
 		rc = -ENOMEM;
 		goto out_openerr;
 	}
@@ -551,7 +557,7 @@ int ll_file_open(struct inode *inode, struct file *file)
 	fd->fd_file = file;
 	if (S_ISDIR(inode->i_mode)) {
 		spin_lock(&lli->lli_sa_lock);
-		if (lli->lli_opendir_key == NULL && lli->lli_sai == NULL &&
+		if (!lli->lli_opendir_key && !lli->lli_sai &&
 		    lli->lli_opendir_pid == 0) {
 			lli->lli_opendir_key = fd;
 			lli->lli_opendir_pid = current_pid();
@@ -568,7 +574,8 @@ int ll_file_open(struct inode *inode, struct file *file)
 	if (!it || !it->d.lustre.it_disposition) {
 		/* Convert f_flags into access mode. We cannot use file->f_mode,
 		 * because everything but O_ACCMODE mask was stripped from
-		 * there */
+		 * there
+		 */
 		if ((oit.it_flags + 1) & O_ACCMODE)
 			oit.it_flags++;
 		if (file->f_flags & O_TRUNC)
@@ -577,17 +584,20 @@ int ll_file_open(struct inode *inode, struct file *file)
 		/* kernel only call f_op->open in dentry_open.  filp_open calls
 		 * dentry_open after call to open_namei that checks permissions.
 		 * Only nfsd_open call dentry_open directly without checking
-		 * permissions and because of that this code below is safe. */
+		 * permissions and because of that this code below is safe.
+		 */
 		if (oit.it_flags & (FMODE_WRITE | FMODE_READ))
 			oit.it_flags |= MDS_OPEN_OWNEROVERRIDE;
 
 		/* We do not want O_EXCL here, presumably we opened the file
-		 * already? XXX - NFS implications? */
+		 * already? XXX - NFS implications?
+		 */
 		oit.it_flags &= ~O_EXCL;
 
 		/* bug20584, if "it_flags" contains O_CREAT, the file will be
 		 * created if necessary, then "IT_CREAT" should be set to keep
-		 * consistent with it */
+		 * consistent with it
+		 */
 		if (oit.it_flags & O_CREAT)
 			oit.it_op |= IT_CREAT;
 
@@ -611,7 +621,8 @@ restart:
 	if (*och_p) { /* Open handle is present */
 		if (it_disposition(it, DISP_OPEN_OPEN)) {
 			/* Well, there's extra open request that we do not need,
-			   let's close it somehow. This will decref request. */
+			 * let's close it somehow. This will decref request.
+			 */
 			rc = it_open_error(DISP_OPEN_OPEN, it);
 			if (rc) {
 				mutex_unlock(&lli->lli_och_mutex);
@@ -632,10 +643,11 @@ restart:
 		LASSERT(*och_usecount == 0);
 		if (!it->d.lustre.it_disposition) {
 			/* We cannot just request lock handle now, new ELC code
-			   means that one of other OPEN locks for this file
-			   could be cancelled, and since blocking ast handler
-			   would attempt to grab och_mutex as well, that would
-			   result in a deadlock */
+			 * means that one of other OPEN locks for this file
+			 * could be cancelled, and since blocking ast handler
+			 * would attempt to grab och_mutex as well, that would
+			 * result in a deadlock
+			 */
 			mutex_unlock(&lli->lli_och_mutex);
 			it->it_create_mode |= M_CHECK_STALE;
 			rc = ll_intent_file_open(file->f_path.dentry, NULL, 0, it);
@@ -655,9 +667,11 @@ restart:
 
 		/* md_intent_lock() didn't get a request ref if there was an
 		 * open error, so don't do cleanup on the request here
-		 * (bug 3430) */
+		 * (bug 3430)
+		 */
 		/* XXX (green): Should not we bail out on any error here, not
-		 * just open error? */
+		 * just open error?
+		 */
 		rc = it_open_error(DISP_OPEN_OPEN, it);
 		if (rc)
 			goto out_och_free;
@@ -672,8 +686,9 @@ restart:
 	fd = NULL;
 
 	/* Must do this outside lli_och_mutex lock to prevent deadlock where
-	   different kind of OPEN lock for this same inode gets cancelled
-	   by ldlm_cancel_lru */
+	 * different kind of OPEN lock for this same inode gets cancelled
+	 * by ldlm_cancel_lru
+	 */
 	if (!S_ISREG(inode->i_mode))
 		goto out_och_free;
 
@@ -752,7 +767,7 @@ ll_lease_open(struct inode *inode, struct file *file, fmode_t fmode,
 	if (fmode != FMODE_WRITE && fmode != FMODE_READ)
 		return ERR_PTR(-EINVAL);
 
-	if (file != NULL) {
+	if (file) {
 		struct ll_inode_info *lli = ll_i2info(inode);
 		struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
 		struct obd_client_handle **och_p;
@@ -764,18 +779,18 @@ ll_lease_open(struct inode *inode, struct file *file, fmode_t fmode,
 		/* Get the openhandle of the file */
 		rc = -EBUSY;
 		mutex_lock(&lli->lli_och_mutex);
-		if (fd->fd_lease_och != NULL) {
+		if (fd->fd_lease_och) {
 			mutex_unlock(&lli->lli_och_mutex);
 			return ERR_PTR(rc);
 		}
 
-		if (fd->fd_och == NULL) {
+		if (!fd->fd_och) {
 			if (file->f_mode & FMODE_WRITE) {
-				LASSERT(lli->lli_mds_write_och != NULL);
+				LASSERT(lli->lli_mds_write_och);
 				och_p = &lli->lli_mds_write_och;
 				och_usecount = &lli->lli_open_fd_write_count;
 			} else {
-				LASSERT(lli->lli_mds_read_och != NULL);
+				LASSERT(lli->lli_mds_read_och);
 				och_p = &lli->lli_mds_read_och;
 				och_usecount = &lli->lli_open_fd_read_count;
 			}
@@ -790,7 +805,7 @@ ll_lease_open(struct inode *inode, struct file *file, fmode_t fmode,
 		if (rc < 0) /* more than 1 opener */
 			return ERR_PTR(rc);
 
-		LASSERT(fd->fd_och != NULL);
+		LASSERT(fd->fd_och);
 		old_handle = fd->fd_och->och_fh;
 	}
 
@@ -817,7 +832,8 @@ ll_lease_open(struct inode *inode, struct file *file, fmode_t fmode,
 	 * broken;
 	 * LDLM_FL_EXCL: Set this flag so that it won't be matched by normal
 	 * open in ll_md_blocking_ast(). Otherwise as ll_md_blocking_lease_ast
-	 * doesn't deal with openhandle, so normal openhandle will be leaked. */
+	 * doesn't deal with openhandle, so normal openhandle will be leaked.
+	 */
 				LDLM_FL_NO_LRU | LDLM_FL_EXCL);
 	ll_finish_md_op_data(op_data);
 	ptlrpc_req_finished(req);
@@ -886,7 +902,7 @@ static int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
 	int rc;
 
 	lock = ldlm_handle2lock(&och->och_lease_handle);
-	if (lock != NULL) {
+	if (lock) {
 		lock_res_and_lock(lock);
 		cancelled = ldlm_is_cancel(lock);
 		unlock_res_and_lock(lock);
@@ -898,7 +914,7 @@ static int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
 
 	if (!cancelled)
 		ldlm_cli_cancel(&och->och_lease_handle, 0);
-	if (lease_broken != NULL)
+	if (lease_broken)
 		*lease_broken = cancelled;
 
 	rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp, inode, och,
@@ -914,7 +930,7 @@ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp,
 	struct obd_info	    oinfo = { };
 	int			rc;
 
-	LASSERT(lsm != NULL);
+	LASSERT(lsm);
 
 	oinfo.oi_md = lsm;
 	oinfo.oi_oa = obdo;
@@ -933,7 +949,7 @@ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp,
 	}
 
 	set = ptlrpc_prep_set();
-	if (set == NULL) {
+	if (!set) {
 		CERROR("can't allocate ptlrpc set\n");
 		rc = -ENOMEM;
 	} else {
@@ -986,7 +1002,8 @@ int ll_merge_lvb(const struct lu_env *env, struct inode *inode)
 
 	ll_inode_size_lock(inode);
 	/* merge timestamps the most recently obtained from mds with
-	   timestamps obtained from osts */
+	 * timestamps obtained from osts
+	 */
 	LTIME_S(inode->i_atime) = lli->lli_lvb.lvb_atime;
 	LTIME_S(inode->i_mtime) = lli->lli_lvb.lvb_mtime;
 	LTIME_S(inode->i_ctime) = lli->lli_lvb.lvb_ctime;
@@ -1155,7 +1172,8 @@ restart:
 out:
 	cl_io_fini(env, io);
 	/* If any bit been read/written (result != 0), we just return
-	 * short read/write instead of restart io. */
+	 * short read/write instead of restart io.
+	 */
 	if ((result == 0 || result == -ENODATA) && io->ci_need_restart) {
 		CDEBUG(D_VFSTRACE, "Restart %s on %pD from %lld, count:%zd\n",
 		       iot == CIT_READ ? "read" : "write",
@@ -1261,7 +1279,7 @@ static int ll_lov_recreate(struct inode *inode, struct ost_id *oi, u32 ost_idx)
 	struct lov_stripe_md *lsm = NULL, *lsm2;
 
 	oa = kmem_cache_alloc(obdo_cachep, GFP_NOFS | __GFP_ZERO);
-	if (oa == NULL)
+	if (!oa)
 		return -ENOMEM;
 
 	lsm = ccc_inode_lsm_get(inode);
@@ -1274,7 +1292,7 @@ static int ll_lov_recreate(struct inode *inode, struct ost_id *oi, u32 ost_idx)
 		   (lsm->lsm_stripe_count));
 
 	lsm2 = libcfs_kvzalloc(lsm_size, GFP_NOFS);
-	if (lsm2 == NULL) {
+	if (!lsm2) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1341,7 +1359,7 @@ int ll_lov_setstripe_ea_info(struct inode *inode, struct dentry *dentry,
 	int rc = 0;
 
 	lsm = ccc_inode_lsm_get(inode);
-	if (lsm != NULL) {
+	if (lsm) {
 		ccc_inode_lsm_put(inode, lsm);
 		CDEBUG(D_IOCTL, "stripe already exists for ino %lu\n",
 		       inode->i_ino);
@@ -1401,7 +1419,6 @@ int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename,
 	}
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	LASSERT(body != NULL); /* checked by mdc_getattr_name */
 
 	lmmsize = body->eadatasize;
 
@@ -1412,7 +1429,6 @@ int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename,
 	}
 
 	lmm = req_capsule_server_sized_get(&req->rq_pill, &RMF_MDT_MD, lmmsize);
-	LASSERT(lmm != NULL);
 
 	if ((lmm->lmm_magic != cpu_to_le32(LOV_MAGIC_V1)) &&
 	    (lmm->lmm_magic != cpu_to_le32(LOV_MAGIC_V3))) {
@@ -1433,7 +1449,8 @@ int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename,
 			stripe_count = 0;
 
 		/* if function called for directory - we should
-		 * avoid swab not existent lsm objects */
+		 * avoid swab not existent lsm objects
+		 */
 		if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V1)) {
 			lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm);
 			if (S_ISREG(body->mode))
@@ -1469,7 +1486,7 @@ static int ll_lov_setea(struct inode *inode, struct file *file,
 		return -EPERM;
 
 	lump = libcfs_kvzalloc(lum_size, GFP_NOFS);
-	if (lump == NULL)
+	if (!lump)
 		return -ENOMEM;
 
 	if (copy_from_user(lump, (struct lov_user_md __user *)arg, lum_size)) {
@@ -1530,7 +1547,7 @@ static int ll_lov_getstripe(struct inode *inode, unsigned long arg)
 	int rc = -ENODATA;
 
 	lsm = ccc_inode_lsm_get(inode);
-	if (lsm != NULL)
+	if (lsm)
 		rc = obd_iocontrol(LL_IOC_LOV_GETSTRIPE, ll_i2dtexp(inode), 0,
 				   lsm, (void __user *)arg);
 	ccc_inode_lsm_put(inode, lsm);
@@ -1560,7 +1577,7 @@ ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg)
 		spin_unlock(&lli->lli_lock);
 		return -EINVAL;
 	}
-	LASSERT(fd->fd_grouplock.cg_lock == NULL);
+	LASSERT(!fd->fd_grouplock.cg_lock);
 	spin_unlock(&lli->lli_lock);
 
 	rc = cl_get_grouplock(cl_i2info(inode)->lli_clob,
@@ -1597,7 +1614,7 @@ static int ll_put_grouplock(struct inode *inode, struct file *file,
 		CWARN("no group lock held\n");
 		return -EINVAL;
 	}
-	LASSERT(fd->fd_grouplock.cg_lock != NULL);
+	LASSERT(fd->fd_grouplock.cg_lock);
 
 	if (fd->fd_grouplock.cg_gid != arg) {
 		CWARN("group lock %lu doesn't match current id %lu\n",
@@ -1688,7 +1705,7 @@ static int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
 	}
 
 	lsm = ccc_inode_lsm_get(inode);
-	if (lsm == NULL)
+	if (!lsm)
 		return -ENOENT;
 
 	/* If the stripe_count > 1 and the application does not understand
@@ -1782,7 +1799,8 @@ static int ll_ioctl_fiemap(struct inode *inode, unsigned long arg)
 	int rc = 0;
 
 	/* Get the extent count so we can calculate the size of
-	 * required fiemap buffer */
+	 * required fiemap buffer
+	 */
 	if (get_user(extent_count,
 	    &((struct ll_user_fiemap __user *)arg)->fm_extent_count))
 		return -EFAULT;
@@ -1794,7 +1812,7 @@ static int ll_ioctl_fiemap(struct inode *inode, unsigned long arg)
 					 sizeof(struct ll_fiemap_extent));
 
 	fiemap_s = libcfs_kvzalloc(num_bytes, GFP_NOFS);
-	if (fiemap_s == NULL)
+	if (!fiemap_s)
 		return -ENOMEM;
 
 	/* get the fiemap value */
@@ -1806,7 +1824,8 @@ static int ll_ioctl_fiemap(struct inode *inode, unsigned long arg)
 
 	/* If fm_extent_count is non-zero, read the first extent since
 	 * it is used to calculate end_offset and device from previous
-	 * fiemap call. */
+	 * fiemap call.
+	 */
 	if (extent_count) {
 		if (copy_from_user(&fiemap_s->fm_extents[0],
 		    (char __user *)arg + sizeof(*fiemap_s),
@@ -1917,13 +1936,14 @@ int ll_hsm_release(struct inode *inode)
 
 	/* Release the file.
 	 * NB: lease lock handle is released in mdc_hsm_release_pack() because
-	 * we still need it to pack l_remote_handle to MDT. */
+	 * we still need it to pack l_remote_handle to MDT.
+	 */
 	rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp, inode, och,
 				       &data_version);
 	och = NULL;
 
 out:
-	if (och != NULL && !IS_ERR(och)) /* close the file */
+	if (och && !IS_ERR(och)) /* close the file */
 		ll_lease_close(och, inode, NULL);
 
 	return rc;
@@ -2007,7 +2027,8 @@ static int ll_swap_layouts(struct file *file1, struct file *file2,
 	}
 
 	/* to be able to restore mtime and atime after swap
-	 * we need to first save them */
+	 * we need to first save them
+	 */
 	if (lsl->sl_flags &
 	    (SWAP_LAYOUTS_KEEP_MTIME | SWAP_LAYOUTS_KEEP_ATIME)) {
 		llss->ia1.ia_mtime = llss->inode1->i_mtime;
@@ -2019,7 +2040,8 @@ static int ll_swap_layouts(struct file *file1, struct file *file2,
 	}
 
 	/* ultimate check, before swapping the layouts we check if
-	 * dataversion has changed (if requested) */
+	 * dataversion has changed (if requested)
+	 */
 	if (llss->check_dv1) {
 		rc = ll_data_version(llss->inode1, &dv, 0);
 		if (rc)
@@ -2042,9 +2064,11 @@ static int ll_swap_layouts(struct file *file1, struct file *file2,
 
 	/* struct md_op_data is used to send the swap args to the mdt
 	 * only flags is missing, so we use struct mdc_swap_layouts
-	 * through the md_op_data->op_data */
+	 * through the md_op_data->op_data
+	 */
 	/* flags from user space have to be converted before they are send to
-	 * server, no flag is sent today, they are only used on the client */
+	 * server, no flag is sent today, they are only used on the client
+	 */
 	msl.msl_flags = 0;
 	rc = -ENOMEM;
 	op_data = ll_prep_md_op_data(NULL, llss->inode1, llss->inode2, NULL, 0,
@@ -2113,7 +2137,8 @@ static int ll_hsm_state_set(struct inode *inode, struct hsm_state_set *hss)
 		return -EINVAL;
 
 	/* Non-root users are forbidden to set or clear flags which are
-	 * NOT defined in HSM_USER_MASK. */
+	 * NOT defined in HSM_USER_MASK.
+	 */
 	if (((hss->hss_setmask | hss->hss_clearmask) & ~HSM_USER_MASK) &&
 	    !capable(CFS_CAP_SYS_ADMIN))
 		return -EPERM;
@@ -2250,7 +2275,7 @@ ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 			return -EPERM;
 
 		file2 = fget(lsl.sl_fd);
-		if (file2 == NULL)
+		if (!file2)
 			return -EBADF;
 
 		rc = -EPERM;
@@ -2413,13 +2438,13 @@ ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 			break;
 		case F_UNLCK:
 			mutex_lock(&lli->lli_och_mutex);
-			if (fd->fd_lease_och != NULL) {
+			if (fd->fd_lease_och) {
 				och = fd->fd_lease_och;
 				fd->fd_lease_och = NULL;
 			}
 			mutex_unlock(&lli->lli_och_mutex);
 
-			if (och != NULL) {
+			if (och) {
 				mode = och->och_flags &
 				       (FMODE_READ|FMODE_WRITE);
 				rc = ll_lease_close(och, inode, &lease_broken);
@@ -2444,12 +2469,12 @@ ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
 		rc = 0;
 		mutex_lock(&lli->lli_och_mutex);
-		if (fd->fd_lease_och == NULL) {
+		if (!fd->fd_lease_och) {
 			fd->fd_lease_och = och;
 			och = NULL;
 		}
 		mutex_unlock(&lli->lli_och_mutex);
-		if (och != NULL) {
+		if (och) {
 			/* impossible now that only excl is supported for now */
 			ll_lease_close(och, inode, &lease_broken);
 			rc = -EBUSY;
@@ -2462,11 +2487,11 @@ ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
 		rc = 0;
 		mutex_lock(&lli->lli_och_mutex);
-		if (fd->fd_lease_och != NULL) {
+		if (fd->fd_lease_och) {
 			struct obd_client_handle *och = fd->fd_lease_och;
 
 			lock = ldlm_handle2lock(&och->och_lease_handle);
-			if (lock != NULL) {
+			if (lock) {
 				lock_res_and_lock(lock);
 				if (!ldlm_is_cancel(lock))
 					rc = och->och_flags &
@@ -2537,15 +2562,17 @@ static int ll_flush(struct file *file, fl_owner_t id)
 	LASSERT(!S_ISDIR(inode->i_mode));
 
 	/* catch async errors that were recorded back when async writeback
-	 * failed for pages in this mapping. */
+	 * failed for pages in this mapping.
+	 */
 	rc = lli->lli_async_rc;
 	lli->lli_async_rc = 0;
 	err = lov_read_and_clear_async_rc(lli->lli_clob);
 	if (rc == 0)
 		rc = err;
 
-	/* The application has been told write failure already.
-	 * Do not report failure again. */
+	/* The application has been told about write failure already.
+	 * Do not report failure again.
+	 */
 	if (fd->fd_write_failed)
 		return 0;
 	return rc ? -EIO : 0;
@@ -2613,7 +2640,8 @@ int ll_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 	inode_lock(inode);
 
 	/* catch async errors that were recorded back when async writeback
-	 * failed for pages in this mapping. */
+	 * failed for pages in this mapping.
+	 */
 	if (!S_ISDIR(inode->i_mode)) {
 		err = lli->lli_async_rc;
 		lli->lli_async_rc = 0;
@@ -2684,7 +2712,8 @@ ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock)
 	 * I guess between lockd processes) and then compares pid.
 	 * As such we assign pid to the owner field to make it all work,
 	 * conflict with normal locks is unlikely since pid space and
-	 * pointer space for current->files are not intersecting */
+	 * pointer space for current->files are not intersecting
+	 */
 	if (file_lock->fl_lmops && file_lock->fl_lmops->lm_compare_owner)
 		flock.l_flock.owner = (unsigned long)file_lock->fl_pid;
 
@@ -2700,7 +2729,8 @@ ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock)
 		 * order to process an unlock request we need all of the same
 		 * information that is given with a normal read or write record
 		 * lock request. To avoid creating another ldlm unlock (cancel)
-		 * message we'll treat a LCK_NL flock request as an unlock. */
+		 * message we'll treat a LCK_NL flock request as an unlock.
+		 */
 		einfo.ei_mode = LCK_NL;
 		break;
 	case F_WRLCK:
@@ -2731,7 +2761,8 @@ ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock)
 #endif
 		flags = LDLM_FL_TEST_LOCK;
 		/* Save the old mode so that if the mode in the lock changes we
-		 * can decrement the appropriate reader or writer refcount. */
+		 * can decrement the appropriate reader or writer refcount.
+		 */
 		file_lock->fl_type = einfo.ei_mode;
 		break;
 	default:
@@ -2783,11 +2814,12 @@ ll_file_noflock(struct file *file, int cmd, struct file_lock *file_lock)
  * \param l_req_mode [IN] searched lock mode
  * \retval boolean, true iff all bits are found
  */
-int ll_have_md_lock(struct inode *inode, __u64 *bits,  ldlm_mode_t l_req_mode)
+int ll_have_md_lock(struct inode *inode, __u64 *bits,
+		    enum ldlm_mode l_req_mode)
 {
 	struct lustre_handle lockh;
 	ldlm_policy_data_t policy;
-	ldlm_mode_t mode = (l_req_mode == LCK_MINMODE) ?
+	enum ldlm_mode mode = (l_req_mode == LCK_MINMODE) ?
 				(LCK_CR|LCK_CW|LCK_PR|LCK_PW) : l_req_mode;
 	struct lu_fid *fid;
 	__u64 flags;
@@ -2823,13 +2855,13 @@ int ll_have_md_lock(struct inode *inode, __u64 *bits,  ldlm_mode_t l_req_mode)
 	return *bits == 0;
 }
 
-ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits,
-			    struct lustre_handle *lockh, __u64 flags,
-			    ldlm_mode_t mode)
+enum ldlm_mode ll_take_md_lock(struct inode *inode, __u64 bits,
+			       struct lustre_handle *lockh, __u64 flags,
+			       enum ldlm_mode mode)
 {
 	ldlm_policy_data_t policy = { .l_inodebits = {bits} };
 	struct lu_fid *fid;
-	ldlm_mode_t rc;
+	enum ldlm_mode rc;
 
 	fid = &ll_i2info(inode)->lli_fid;
 	CDEBUG(D_INFO, "trying to match res "DFID"\n", PFID(fid));
@@ -2867,8 +2899,6 @@ static int __ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
 	struct obd_export *exp;
 	int rc = 0;
 
-	LASSERT(inode != NULL);
-
 	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),name=%pd\n",
 	       inode->i_ino, inode->i_generation, inode, dentry);
 
@@ -2876,7 +2906,8 @@ static int __ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
 
 	/* XXX: Enable OBD_CONNECT_ATTRFID to reduce unnecessary getattr RPC.
 	 *      But under CMD case, it caused some lock issues, should be fixed
-	 *      with new CMD ibits lock. See bug 12718 */
+	 *      with new CMD ibits lock. See bug 12718
+	 */
 	if (exp_connect_flags(exp) & OBD_CONNECT_ATTRFID) {
 		struct lookup_intent oit = { .it_op = IT_GETATTR };
 		struct md_op_data *op_data;
@@ -2894,7 +2925,8 @@ static int __ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
 		oit.it_create_mode |= M_CHECK_STALE;
 		rc = md_intent_lock(exp, op_data, NULL, 0,
 				    /* we are not interested in name
-				       based lookup */
+				     * based lookup
+				     */
 				    &oit, 0, &req,
 				    ll_md_blocking_ast, 0);
 		ll_finish_md_op_data(op_data);
@@ -2911,9 +2943,10 @@ static int __ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
 		}
 
 		/* Unlinked? Unhash dentry, so it is not picked up later by
-		   do_lookup() -> ll_revalidate_it(). We cannot use d_drop
-		   here to preserve get_cwd functionality on 2.6.
-		   Bug 10503 */
+		 * do_lookup() -> ll_revalidate_it(). We cannot use d_drop
+		 * here to preserve get_cwd functionality on 2.6.
+		 * Bug 10503
+		 */
 		if (!d_inode(dentry)->i_nlink)
 			d_lustre_invalidate(dentry, 0);
 
@@ -3027,7 +3060,7 @@ static int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 				       sizeof(struct ll_fiemap_extent));
 	fiemap = libcfs_kvzalloc(num_bytes, GFP_NOFS);
 
-	if (fiemap == NULL)
+	if (!fiemap)
 		return -ENOMEM;
 
 	fiemap->fm_flags = fieinfo->fi_flags;
@@ -3075,13 +3108,12 @@ int ll_inode_permission(struct inode *inode, int mask)
 {
 	int rc = 0;
 
-#ifdef MAY_NOT_BLOCK
 	if (mask & MAY_NOT_BLOCK)
 		return -ECHILD;
-#endif
 
        /* as root inode are NOT getting validated in lookup operation,
-	* need to do it before permission check. */
+	* need to do it before permission check.
+	*/
 
 	if (is_root_inode(inode)) {
 		rc = __ll_inode_revalidate(inode->i_sb->s_root,
@@ -3181,8 +3213,7 @@ void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd)
 	unsigned int size;
 	struct llioc_data *in_data = NULL;
 
-	if (cb == NULL || cmd == NULL ||
-	    count > LLIOC_MAX_CMD || count < 0)
+	if (!cb || !cmd || count > LLIOC_MAX_CMD || count < 0)
 		return NULL;
 
 	size = sizeof(*in_data) + count * sizeof(unsigned int);
@@ -3208,7 +3239,7 @@ void ll_iocontrol_unregister(void *magic)
 {
 	struct llioc_data *tmp;
 
-	if (magic == NULL)
+	if (!magic)
 		return;
 
 	down_write(&llioc.ioc_sem);
@@ -3262,7 +3293,7 @@ int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf)
 	struct lu_env *env;
 	int result;
 
-	if (lli->lli_clob == NULL)
+	if (!lli->lli_clob)
 		return 0;
 
 	env = cl_env_nested_get(&nest);
@@ -3275,13 +3306,14 @@ int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf)
 	if (conf->coc_opc == OBJECT_CONF_SET) {
 		struct ldlm_lock *lock = conf->coc_lock;
 
-		LASSERT(lock != NULL);
+		LASSERT(lock);
 		LASSERT(ldlm_has_layout(lock));
 		if (result == 0) {
 			/* it can only be allowed to match after layout is
 			 * applied to inode otherwise false layout would be
 			 * seen. Applying layout should happen before dropping
-			 * the intent lock. */
+			 * the intent lock.
+			 */
 			ldlm_lock_allow_match(lock);
 		}
 	}
@@ -3304,14 +3336,15 @@ static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock)
 	       PFID(ll_inode2fid(inode)), !!(lock->l_flags & LDLM_FL_LVB_READY),
 	       lock->l_lvb_data, lock->l_lvb_len);
 
-	if ((lock->l_lvb_data != NULL) && (lock->l_flags & LDLM_FL_LVB_READY))
+	if (lock->l_lvb_data && (lock->l_flags & LDLM_FL_LVB_READY))
 		return 0;
 
 	/* if layout lock was granted right away, the layout is returned
 	 * within DLM_LVB of dlm reply; otherwise if the lock was ever
 	 * blocked and then granted via completion ast, we have to fetch
 	 * layout here. Please note that we can't use the LVB buffer in
-	 * completion AST because it doesn't have a large enough buffer */
+	 * completion AST because it doesn't have a large enough buffer
+	 */
 	rc = ll_get_default_mdsize(sbi, &lmmsize);
 	if (rc == 0)
 		rc = md_getxattr(sbi->ll_md_exp, ll_inode2fid(inode),
@@ -3321,7 +3354,7 @@ static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock)
 		return rc;
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL) {
+	if (!body) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -3333,20 +3366,20 @@ static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock)
 	}
 
 	lmm = req_capsule_server_sized_get(&req->rq_pill, &RMF_EADATA, lmmsize);
-	if (lmm == NULL) {
+	if (!lmm) {
 		rc = -EFAULT;
 		goto out;
 	}
 
 	lvbdata = libcfs_kvzalloc(lmmsize, GFP_NOFS);
-	if (lvbdata == NULL) {
+	if (!lvbdata) {
 		rc = -ENOMEM;
 		goto out;
 	}
 
 	memcpy(lvbdata, lmm, lmmsize);
 	lock_res_and_lock(lock);
-	if (lock->l_lvb_data != NULL)
+	if (lock->l_lvb_data)
 		kvfree(lock->l_lvb_data);
 
 	lock->l_lvb_data = lvbdata;
@@ -3362,8 +3395,8 @@ out:
  * Apply the layout to the inode. Layout lock is held and will be released
  * in this function.
  */
-static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode,
-				struct inode *inode, __u32 *gen, bool reconf)
+static int ll_layout_lock_set(struct lustre_handle *lockh, enum ldlm_mode mode,
+			      struct inode *inode, __u32 *gen, bool reconf)
 {
 	struct ll_inode_info *lli = ll_i2info(inode);
 	struct ll_sb_info    *sbi = ll_i2sbi(inode);
@@ -3377,7 +3410,7 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode,
 	LASSERT(lustre_handle_is_used(lockh));
 
 	lock = ldlm_handle2lock(lockh);
-	LASSERT(lock != NULL);
+	LASSERT(lock);
 	LASSERT(ldlm_has_layout(lock));
 
 	LDLM_DEBUG(lock, "File %p/"DFID" being reconfigured: %d.\n",
@@ -3390,12 +3423,14 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode,
 	lvb_ready = !!(lock->l_flags & LDLM_FL_LVB_READY);
 	unlock_res_and_lock(lock);
 	/* checking lvb_ready is racy but this is okay. The worst case is
-	 * that multi processes may configure the file on the same time. */
+	 * that multi processes may configure the file on the same time.
+	 */
 	if (lvb_ready || !reconf) {
 		rc = -ENODATA;
 		if (lvb_ready) {
 			/* layout_gen must be valid if layout lock is not
-			 * cancelled and stripe has already set */
+			 * cancelled and stripe has already set
+			 */
 			*gen = ll_layout_version_get(lli);
 			rc = 0;
 		}
@@ -3409,13 +3444,14 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode,
 	/* for layout lock, lmm is returned in lock's lvb.
 	 * lvb_data is immutable if the lock is held so it's safe to access it
 	 * without res lock. See the description in ldlm_lock_decref_internal()
-	 * for the condition to free lvb_data of layout lock */
-	if (lock->l_lvb_data != NULL) {
+	 * for the condition to free lvb_data of layout lock
+	 */
+	if (lock->l_lvb_data) {
 		rc = obd_unpackmd(sbi->ll_dt_exp, &md.lsm,
 				  lock->l_lvb_data, lock->l_lvb_len);
 		if (rc >= 0) {
 			*gen = LL_LAYOUT_GEN_EMPTY;
-			if (md.lsm != NULL)
+			if (md.lsm)
 				*gen = md.lsm->lsm_layout_gen;
 			rc = 0;
 		} else {
@@ -3428,7 +3464,8 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode,
 		goto out;
 
 	/* set layout to file. Unlikely this will fail as old layout was
-	 * surely eliminated */
+	 * surely eliminated
+	 */
 	memset(&conf, 0, sizeof(conf));
 	conf.coc_opc = OBJECT_CONF_SET;
 	conf.coc_inode = inode;
@@ -3436,7 +3473,7 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode,
 	conf.u.coc_md = &md;
 	rc = ll_layout_conf(inode, &conf);
 
-	if (md.lsm != NULL)
+	if (md.lsm)
 		obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
 
 	/* refresh layout failed, need to wait */
@@ -3485,7 +3522,7 @@ int ll_layout_refresh(struct inode *inode, __u32 *gen)
 	struct md_op_data     *op_data;
 	struct lookup_intent   it;
 	struct lustre_handle   lockh;
-	ldlm_mode_t	       mode;
+	enum ldlm_mode	       mode;
 	struct ldlm_enqueue_info einfo = {
 		.ei_type = LDLM_IBITS,
 		.ei_mode = LCK_CR,
@@ -3507,7 +3544,8 @@ int ll_layout_refresh(struct inode *inode, __u32 *gen)
 
 again:
 	/* mostly layout lock is caching on the local side, so try to match
-	 * it before grabbing layout lock mutex. */
+	 * it before grabbing layout lock mutex.
+	 */
 	mode = ll_take_md_lock(inode, MDS_INODELOCK_LAYOUT, &lockh, 0,
 			       LCK_CR | LCK_CW | LCK_PR | LCK_PW);
 	if (mode != 0) { /* hit cached lock */
@@ -3537,8 +3575,7 @@ again:
 
 	rc = md_enqueue(sbi->ll_md_exp, &einfo, &it, op_data, &lockh,
 			NULL, 0, NULL, 0);
-	if (it.d.lustre.it_data != NULL)
-		ptlrpc_req_finished(it.d.lustre.it_data);
+	ptlrpc_req_finished(it.d.lustre.it_data);
 	it.d.lustre.it_data = NULL;
 
 	ll_finish_md_op_data(op_data);
diff --git a/drivers/staging/lustre/lustre/llite/llite_close.c b/drivers/staging/lustre/lustre/llite/llite_close.c
index 3f348a3..fcb6657 100644
--- a/drivers/staging/lustre/lustre/llite/llite_close.c
+++ b/drivers/staging/lustre/lustre/llite/llite_close.c
@@ -52,7 +52,7 @@ void vvp_write_pending(struct ccc_object *club, struct ccc_page *page)
 
 	spin_lock(&lli->lli_lock);
 	lli->lli_flags |= LLIF_SOM_DIRTY;
-	if (page != NULL && list_empty(&page->cpg_pending_linkage))
+	if (page && list_empty(&page->cpg_pending_linkage))
 		list_add(&page->cpg_pending_linkage,
 			     &club->cob_pending_list);
 	spin_unlock(&lli->lli_lock);
@@ -65,7 +65,7 @@ void vvp_write_complete(struct ccc_object *club, struct ccc_page *page)
 	int rc = 0;
 
 	spin_lock(&lli->lli_lock);
-	if (page != NULL && !list_empty(&page->cpg_pending_linkage)) {
+	if (page && !list_empty(&page->cpg_pending_linkage)) {
 		list_del_init(&page->cpg_pending_linkage);
 		rc = 1;
 	}
@@ -76,7 +76,8 @@ void vvp_write_complete(struct ccc_object *club, struct ccc_page *page)
 
 /** Queues DONE_WRITING if
  * - done writing is allowed;
- * - inode has no no dirty pages; */
+ * - inode has no no dirty pages;
+ */
 void ll_queue_done_writing(struct inode *inode, unsigned long flags)
 {
 	struct ll_inode_info *lli = ll_i2info(inode);
@@ -106,7 +107,8 @@ void ll_queue_done_writing(struct inode *inode, unsigned long flags)
 		 * close() happen, epoch is closed as the inode is marked as
 		 * LLIF_EPOCH_PENDING. When pages are written inode should not
 		 * be inserted into the queue again, clear this flag to avoid
-		 * it. */
+		 * it.
+		 */
 		lli->lli_flags &= ~LLIF_DONE_WRITING;
 
 		wake_up(&lcq->lcq_waitq);
@@ -144,10 +146,11 @@ void ll_ioepoch_close(struct inode *inode, struct md_op_data *op_data,
 	spin_lock(&lli->lli_lock);
 	if (!(list_empty(&club->cob_pending_list))) {
 		if (!(lli->lli_flags & LLIF_EPOCH_PENDING)) {
-			LASSERT(*och != NULL);
-			LASSERT(lli->lli_pending_och == NULL);
+			LASSERT(*och);
+			LASSERT(!lli->lli_pending_och);
 			/* Inode is dirty and there is no pending write done
-			 * request yet, DONE_WRITE is to be sent later. */
+			 * request yet, DONE_WRITE is to be sent later.
+			 */
 			lli->lli_flags |= LLIF_EPOCH_PENDING;
 			lli->lli_pending_och = *och;
 			spin_unlock(&lli->lli_lock);
@@ -159,7 +162,8 @@ void ll_ioepoch_close(struct inode *inode, struct md_op_data *op_data,
 		if (flags & LLIF_DONE_WRITING) {
 			/* Some pages are still dirty, it is early to send
 			 * DONE_WRITE. Wait until all pages will be flushed
-			 * and try DONE_WRITE again later. */
+			 * and try DONE_WRITE again later.
+			 */
 			LASSERT(!(lli->lli_flags & LLIF_DONE_WRITING));
 			lli->lli_flags |= LLIF_DONE_WRITING;
 			spin_unlock(&lli->lli_lock);
@@ -187,7 +191,8 @@ void ll_ioepoch_close(struct inode *inode, struct md_op_data *op_data,
 		}
 
 		/* There is a pending DONE_WRITE -- close epoch with no
-		 * attribute change. */
+		 * attribute change.
+		 */
 		if (lli->lli_flags & LLIF_EPOCH_PENDING) {
 			spin_unlock(&lli->lli_lock);
 			goto out;
@@ -215,7 +220,7 @@ int ll_som_update(struct inode *inode, struct md_op_data *op_data)
 	struct obdo *oa;
 	int rc;
 
-	LASSERT(op_data != NULL);
+	LASSERT(op_data);
 	if (lli->lli_flags & LLIF_MDS_SIZE_LOCK)
 		CERROR("ino %lu/%u(flags %u) som valid it just after recovery\n",
 		       inode->i_ino, inode->i_generation,
@@ -266,7 +271,7 @@ static void ll_prepare_done_writing(struct inode *inode,
 {
 	ll_ioepoch_close(inode, op_data, och, LLIF_DONE_WRITING);
 	/* If there is no @och, we do not do D_W yet. */
-	if (*och == NULL)
+	if (!*och)
 		return;
 
 	ll_pack_inode2opdata(inode, op_data, &(*och)->och_fh);
@@ -289,13 +294,14 @@ static void ll_done_writing(struct inode *inode)
 
 	ll_prepare_done_writing(inode, op_data, &och);
 	/* If there is no @och, we do not do D_W yet. */
-	if (och == NULL)
+	if (!och)
 		goto out;
 
 	rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, NULL);
 	if (rc == -EAGAIN)
 		/* MDS has instructed us to obtain Size-on-MDS attribute from
-		 * OSTs and send setattr to back to MDS. */
+		 * OSTs and send setattr to back to MDS.
+		 */
 		rc = ll_som_update(inode, op_data);
 	else if (rc)
 		CERROR("inode %lu mdc done_writing failed: rc = %d\n",
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index 29c325d..f6921ff 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -93,9 +93,10 @@ struct ll_remote_perm {
 	gid_t		   lrp_gid;
 	uid_t		   lrp_fsuid;
 	gid_t		   lrp_fsgid;
-	int		     lrp_access_perm; /* MAY_READ/WRITE/EXEC, this
-						    is access permission with
-						    lrp_fsuid/lrp_fsgid. */
+	int		   lrp_access_perm; /* MAY_READ/WRITE/EXEC, this
+					     * is access permission with
+					     * lrp_fsuid/lrp_fsgid.
+					     */
 };
 
 enum lli_flags {
@@ -106,7 +107,8 @@ enum lli_flags {
 	/* DONE WRITING is allowed. */
 	LLIF_DONE_WRITING       = (1 << 2),
 	/* Sizeon-on-MDS attributes are changed. An attribute update needs to
-	 * be sent to MDS. */
+	 * be sent to MDS.
+	 */
 	LLIF_SOM_DIRTY	  = (1 << 3),
 	/* File data is modified. */
 	LLIF_DATA_MODIFIED      = (1 << 4),
@@ -130,22 +132,23 @@ struct ll_inode_info {
 	/* identifying fields for both metadata and data stacks. */
 	struct lu_fid		   lli_fid;
 	/* Parent fid for accessing default stripe data on parent directory
-	 * for allocating OST objects after a mknod() and later open-by-FID. */
+	 * for allocating OST objects after a mknod() and later open-by-FID.
+	 */
 	struct lu_fid		   lli_pfid;
 
-	struct list_head		      lli_close_list;
-	/* open count currently used by capability only, indicate whether
-	 * capability needs renewal */
-	atomic_t		    lli_open_count;
+	struct list_head	      lli_close_list;
+
 	unsigned long		      lli_rmtperm_time;
 
 	/* handle is to be sent to MDS later on done_writing and setattr.
 	 * Open handle data are needed for the recovery to reconstruct
-	 * the inode state on the MDS. XXX: recovery is not ready yet. */
+	 * the inode state on the MDS. XXX: recovery is not ready yet.
+	 */
 	struct obd_client_handle       *lli_pending_och;
 
 	/* We need all three because every inode may be opened in different
-	 * modes */
+	 * modes
+	 */
 	struct obd_client_handle       *lli_mds_read_och;
 	struct obd_client_handle       *lli_mds_write_och;
 	struct obd_client_handle       *lli_mds_exec_och;
@@ -162,7 +165,8 @@ struct ll_inode_info {
 	spinlock_t			lli_agl_lock;
 
 	/* Try to make the d::member and f::member are aligned. Before using
-	 * these members, make clear whether it is directory or not. */
+	 * these members, make clear whether it is directory or not.
+	 */
 	union {
 		/* for directory */
 		struct {
@@ -173,13 +177,15 @@ struct ll_inode_info {
 			/* since parent-child threads can share the same @file
 			 * struct, "opendir_key" is the token when dir close for
 			 * case of parent exit before child -- it is me should
-			 * cleanup the dir readahead. */
+			 * cleanup the dir readahead.
+			 */
 			void			   *d_opendir_key;
 			struct ll_statahead_info       *d_sai;
 			/* protect statahead stuff. */
 			spinlock_t			d_sa_lock;
-			/* "opendir_pid" is the token when lookup/revalid
-			 * -- I am the owner of dir statahead. */
+			/* "opendir_pid" is the token when lookup/revalidate
+			 * -- I am the owner of dir statahead.
+			 */
 			pid_t			   d_opendir_pid;
 		} d;
 
@@ -305,7 +311,8 @@ static inline struct ll_inode_info *ll_i2info(struct inode *inode)
 }
 
 /* default to about 40meg of readahead on a given system.  That much tied
- * up in 512k readahead requests serviced at 40ms each is about 1GB/s. */
+ * up in 512k readahead requests serviced at 40ms each is about 1GB/s.
+ */
 #define SBI_DEFAULT_READAHEAD_MAX (40UL << (20 - PAGE_CACHE_SHIFT))
 
 /* default to read-ahead full files smaller than 2MB on the second read */
@@ -344,11 +351,13 @@ struct ra_io_arg {
 	unsigned long ria_end;    /* end offset of read-ahead*/
 	/* If stride read pattern is detected, ria_stoff means where
 	 * stride read is started. Note: for normal read-ahead, the
-	 * value here is meaningless, and also it will not be accessed*/
+	 * value here is meaningless, and also it will not be accessed
+	 */
 	pgoff_t ria_stoff;
 	/* ria_length and ria_pages are the length and pages length in the
 	 * stride I/O mode. And they will also be used to check whether
-	 * it is stride I/O read-ahead in the read-ahead pages*/
+	 * it is stride I/O read-ahead in the read-ahead pages
+	 */
 	unsigned long ria_length;
 	unsigned long ria_pages;
 };
@@ -455,7 +464,8 @@ struct eacl_table {
 
 struct ll_sb_info {
 	/* this protects pglist and ra_info.  It isn't safe to
-	 * grab from interrupt contexts */
+	 * grab from interrupt contexts
+	 */
 	spinlock_t		  ll_lock;
 	spinlock_t		  ll_pp_extent_lock; /* pp_extent entry*/
 	spinlock_t		  ll_process_lock; /* ll_rw_process_info */
@@ -468,10 +478,8 @@ struct ll_sb_info {
 	int		       ll_flags;
 	unsigned int		  ll_umounting:1,
 				  ll_xattr_cache_enabled:1;
-	struct list_head		ll_conn_chain; /* per-conn chain of SBs */
 	struct lustre_client_ocd  ll_lco;
 
-	struct list_head		ll_orphan_dentry_list; /*please don't ask -p*/
 	struct ll_close_queue    *ll_lcq;
 
 	struct lprocfs_stats     *ll_stats; /* lprocfs stats counter */
@@ -502,13 +510,16 @@ struct ll_sb_info {
 	/* metadata stat-ahead */
 	unsigned int	      ll_sa_max;     /* max statahead RPCs */
 	atomic_t		  ll_sa_total;   /* statahead thread started
-						  * count */
+						  * count
+						  */
 	atomic_t		  ll_sa_wrong;   /* statahead thread stopped for
-						  * low hit ratio */
+						  * low hit ratio
+						  */
 	atomic_t		  ll_agl_total;  /* AGL thread started count */
 
-	dev_t		     ll_sdev_orig; /* save s_dev before assign for
-						 * clustered nfs */
+	dev_t			  ll_sdev_orig; /* save s_dev before assign for
+						 * clustered nfs
+						 */
 	struct rmtacl_ctl_table   ll_rct;
 	struct eacl_table	 ll_et;
 	__kernel_fsid_t		  ll_fsid;
@@ -619,13 +630,15 @@ struct ll_file_data {
 	__u32 fd_flags;
 	fmode_t fd_omode;
 	/* openhandle if lease exists for this file.
-	 * Borrow lli->lli_och_mutex to protect assignment */
+	 * Borrow lli->lli_och_mutex to protect assignment
+	 */
 	struct obd_client_handle *fd_lease_och;
 	struct obd_client_handle *fd_och;
 	struct file *fd_file;
 	/* Indicate whether need to report failure when close.
 	 * true: failure is known, not report again.
-	 * false: unknown failure, should report. */
+	 * false: unknown failure, should report.
+	 */
 	bool fd_write_failed;
 };
 
@@ -705,10 +718,10 @@ extern struct file_operations ll_file_operations_flock;
 extern struct file_operations ll_file_operations_noflock;
 extern const struct inode_operations ll_file_inode_operations;
 int ll_have_md_lock(struct inode *inode, __u64 *bits,
-		    ldlm_mode_t l_req_mode);
-ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits,
-			    struct lustre_handle *lockh, __u64 flags,
-			    ldlm_mode_t mode);
+		    enum ldlm_mode l_req_mode);
+enum ldlm_mode ll_take_md_lock(struct inode *inode, __u64 bits,
+			       struct lustre_handle *lockh, __u64 flags,
+			       enum ldlm_mode mode);
 int ll_file_open(struct inode *inode, struct file *file);
 int ll_file_release(struct inode *inode, struct file *file);
 int ll_glimpse_ioctl(struct ll_sb_info *sbi,
@@ -913,7 +926,7 @@ static inline struct vvp_thread_info *vvp_env_info(const struct lu_env *env)
 	struct vvp_thread_info      *info;
 
 	info = lu_context_key_get(&env->le_ctx, &vvp_key);
-	LASSERT(info != NULL);
+	LASSERT(info);
 	return info;
 }
 
@@ -937,7 +950,7 @@ static inline struct vvp_session *vvp_env_session(const struct lu_env *env)
 	struct vvp_session *ses;
 
 	ses = lu_context_key_get(env->le_ses, &vvp_session_key);
-	LASSERT(ses != NULL);
+	LASSERT(ses);
 	return ses;
 }
 
@@ -968,7 +981,7 @@ static inline void ll_invalidate_page(struct page *vmpage)
 	loff_t offset = vmpage->index << PAGE_CACHE_SHIFT;
 
 	LASSERT(PageLocked(vmpage));
-	if (mapping == NULL)
+	if (!mapping)
 		return;
 
 	ll_teardown_mmaps(mapping, offset, offset + PAGE_CACHE_SIZE);
@@ -993,7 +1006,7 @@ static inline struct client_obd *sbi2mdc(struct ll_sb_info *sbi)
 {
 	struct obd_device *obd = sbi->ll_md_exp->exp_obd;
 
-	if (obd == NULL)
+	if (!obd)
 		LBUG();
 	return &obd->u.cli;
 }
@@ -1018,7 +1031,7 @@ static inline struct lu_fid *ll_inode2fid(struct inode *inode)
 {
 	struct lu_fid *fid;
 
-	LASSERT(inode != NULL);
+	LASSERT(inode);
 	fid = &ll_i2info(inode)->lli_fid;
 
 	return fid;
@@ -1107,39 +1120,44 @@ static inline u64 rce_ops2valid(int ops)
 struct ll_statahead_info {
 	struct inode	   *sai_inode;
 	atomic_t	    sai_refcount;   /* when access this struct, hold
-						 * refcount */
+					     * refcount
+					     */
 	unsigned int	    sai_generation; /* generation for statahead */
 	unsigned int	    sai_max;	/* max ahead of lookup */
 	__u64		   sai_sent;       /* stat requests sent count */
 	__u64		   sai_replied;    /* stat requests which received
-						 * reply */
+					    * reply
+					    */
 	__u64		   sai_index;      /* index of statahead entry */
 	__u64		   sai_index_wait; /* index of entry which is the
-						 * caller is waiting for */
+					    * caller is waiting for
+					    */
 	__u64		   sai_hit;	/* hit count */
 	__u64		   sai_miss;       /* miss count:
-						 * for "ls -al" case, it includes
-						 * hidden dentry miss;
-						 * for "ls -l" case, it does not
-						 * include hidden dentry miss.
-						 * "sai_miss_hidden" is used for
-						 * the later case.
-						 */
+					    * for "ls -al" case, it includes
+					    * hidden dentry miss;
+					    * for "ls -l" case, it does not
+					    * include hidden dentry miss.
+					    * "sai_miss_hidden" is used for
+					    * the later case.
+					    */
 	unsigned int	    sai_consecutive_miss; /* consecutive miss */
 	unsigned int	    sai_miss_hidden;/* "ls -al", but first dentry
-						 * is not a hidden one */
+					     * is not a hidden one
+					     */
 	unsigned int	    sai_skip_hidden;/* skipped hidden dentry count */
 	unsigned int	    sai_ls_all:1,   /* "ls -al", do stat-ahead for
-						 * hidden entries */
+					     * hidden entries
+					     */
 				sai_agl_valid:1;/* AGL is valid for the dir */
-	wait_queue_head_t	     sai_waitq;      /* stat-ahead wait queue */
+	wait_queue_head_t	sai_waitq;      /* stat-ahead wait queue */
 	struct ptlrpc_thread    sai_thread;     /* stat-ahead thread */
 	struct ptlrpc_thread    sai_agl_thread; /* AGL thread */
-	struct list_head	      sai_entries;    /* entry list */
-	struct list_head	      sai_entries_received; /* entries returned */
-	struct list_head	      sai_entries_stated;   /* entries stated */
-	struct list_head	      sai_entries_agl; /* AGL entries to be sent */
-	struct list_head	      sai_cache[LL_SA_CACHE_SIZE];
+	struct list_head	sai_entries;    /* entry list */
+	struct list_head	sai_entries_received; /* entries returned */
+	struct list_head	sai_entries_stated;   /* entries stated */
+	struct list_head	sai_entries_agl; /* AGL entries to be sent */
+	struct list_head	sai_cache[LL_SA_CACHE_SIZE];
 	spinlock_t		sai_cache_lock[LL_SA_CACHE_SIZE];
 	atomic_t		sai_cache_count; /* entry count in cache */
 };
@@ -1171,8 +1189,8 @@ ll_statahead_mark(struct inode *dir, struct dentry *dentry)
 	if (lli->lli_opendir_pid != current_pid())
 		return;
 
-	LASSERT(ldd != NULL);
-	if (sai != NULL)
+	LASSERT(ldd);
+	if (sai)
 		ldd->lld_sa_generation = sai->sai_generation;
 }
 
@@ -1191,7 +1209,7 @@ d_need_statahead(struct inode *dir, struct dentry *dentryp)
 		return -EAGAIN;
 
 	/* statahead has been stopped */
-	if (lli->lli_opendir_key == NULL)
+	if (!lli->lli_opendir_key)
 		return -EAGAIN;
 
 	ldd = ll_d2d(dentryp);
@@ -1313,13 +1331,15 @@ int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end,
 /** direct write pages */
 struct ll_dio_pages {
 	/** page array to be written. we don't support
-	 * partial pages except the last one. */
+	 * partial pages except the last one.
+	 */
 	struct page **ldp_pages;
 	/* offset of each page */
 	loff_t       *ldp_offsets;
 	/** if ldp_offsets is NULL, it means a sequential
 	 * pages to be written, then this is the file offset
-	 * of the * first page. */
+	 * of the first page.
+	 */
 	loff_t	ldp_start_offset;
 	/** how many bytes are to be written. */
 	size_t	ldp_size;
@@ -1345,7 +1365,6 @@ static inline int ll_file_nolock(const struct file *file)
 	struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
 	struct inode *inode = file_inode(file);
 
-	LASSERT(fd != NULL);
 	return ((fd->fd_flags & LL_FILE_IGNORE_LOCK) ||
 		(ll_i2sbi(inode)->ll_flags & LL_SBI_NOLCK));
 }
@@ -1362,7 +1381,8 @@ static inline void ll_set_lock_data(struct obd_export *exp, struct inode *inode,
 		 * remote MDT, where the object is, will grant
 		 * UPDATE|PERM lock. The inode will be attached to both
 		 * LOOKUP and PERM locks, so revoking either locks will
-		 * case the dcache being cleared */
+		 * case the dcache being cleared
+		 */
 		if (it->d.lustre.it_remote_lock_mode) {
 			handle.cookie = it->d.lustre.it_remote_lock_handle;
 			CDEBUG(D_DLMTRACE, "setting l_data to inode %p(%lu/%u) for remote lock %#llx\n",
@@ -1383,7 +1403,7 @@ static inline void ll_set_lock_data(struct obd_export *exp, struct inode *inode,
 		it->d.lustre.it_lock_set = 1;
 	}
 
-	if (bits != NULL)
+	if (bits)
 		*bits = it->d.lustre.it_lock_bits;
 }
 
@@ -1401,14 +1421,14 @@ static inline int d_lustre_invalid(const struct dentry *dentry)
 {
 	struct ll_dentry_data *lld = ll_d2d(dentry);
 
-	return (lld == NULL) || lld->lld_invalid;
+	return !lld || lld->lld_invalid;
 }
 
 static inline void __d_lustre_invalidate(struct dentry *dentry)
 {
 	struct ll_dentry_data *lld = ll_d2d(dentry);
 
-	if (lld != NULL)
+	if (lld)
 		lld->lld_invalid = 1;
 }
 
@@ -1442,7 +1462,7 @@ static inline void d_lustre_invalidate(struct dentry *dentry, int nested)
 static inline void d_lustre_revalidate(struct dentry *dentry)
 {
 	spin_lock(&dentry->d_lock);
-	LASSERT(ll_d2d(dentry) != NULL);
+	LASSERT(ll_d2d(dentry));
 	ll_d2d(dentry)->lld_invalid = 0;
 	spin_unlock(&dentry->d_lock);
 }
diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c
index 446e4b8..1f3e8e8 100644
--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
+++ b/drivers/staging/lustre/lustre/llite/llite_lib.c
@@ -102,8 +102,6 @@ static struct ll_sb_info *ll_init_sbi(struct super_block *sb)
 	sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
 	sbi->ll_ra_info.ra_max_read_ahead_whole_pages =
 					   SBI_DEFAULT_READAHEAD_WHOLE_MAX;
-	INIT_LIST_HEAD(&sbi->ll_conn_chain);
-	INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
 
 	ll_generate_random_uuid(uuid);
 	class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
@@ -171,7 +169,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 		return -ENOMEM;
 	}
 
-	if (llite_root != NULL) {
+	if (llite_root) {
 		err = ldebugfs_register_mountpoint(llite_root, sb, dt, md);
 		if (err < 0)
 			CERROR("could not register mount in <debugfs>/lustre/llite\n");
@@ -204,7 +202,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 
 	if (OBD_FAIL_CHECK(OBD_FAIL_MDC_LIGHTWEIGHT))
 		/* flag mdc connection as lightweight, only used for test
-		 * purpose, use with care */
+		 * purpose, use with care
+		 */
 		data->ocd_connect_flags |= OBD_CONNECT_LIGHTWEIGHT;
 
 	data->ocd_ibits_known = MDS_INODELOCK_FULL;
@@ -252,7 +251,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 
 	/* For mount, we only need fs info from MDT0, and also in DNE, it
 	 * can make sure the client can be mounted as long as MDT0 is
-	 * available */
+	 * available
+	 */
 	err = obd_statfs(NULL, sbi->ll_md_exp, osfs,
 			cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
 			OBD_STATFS_FOR_MDT0);
@@ -265,7 +265,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 	 * we can access the MDC export directly and exp_connect_flags will
 	 * be non-zero, but if accessing an upgraded 2.1 server it will
 	 * have the correct flags filled in.
-	 * XXX: fill in the LMV exp_connect_flags from MDC(s). */
+	 * XXX: fill in the LMV exp_connect_flags from MDC(s).
+	 */
 	valid = exp_connect_flags(sbi->ll_md_exp) & CLIENT_CONNECT_MDT_REQD;
 	if (exp_connect_flags(sbi->ll_md_exp) != 0 &&
 	    valid != CLIENT_CONNECT_MDT_REQD) {
@@ -382,7 +383,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 		/* OBD_CONNECT_CKSUM should always be set, even if checksums are
 		 * disabled by default, because it can still be enabled on the
 		 * fly via /sys. As a consequence, we still need to come to an
-		 * agreement on the supported algorithms at connect time */
+		 * agreement on the supported algorithms at connect time
+		 */
 		data->ocd_connect_flags |= OBD_CONNECT_CKSUM;
 
 		if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY))
@@ -453,7 +455,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 #endif
 
 	/* make root inode
-	 * XXX: move this to after cbd setup? */
+	 * XXX: move this to after cbd setup?
+	 */
 	valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS;
 	if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
 		valid |= OBD_MD_FLRMTPERM;
@@ -493,7 +496,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 	md_free_lustre_md(sbi->ll_md_exp, &lmd);
 	ptlrpc_req_finished(request);
 
-	if (root == NULL || IS_ERR(root)) {
+	if (!(root)) {
 		if (lmd.lsm)
 			obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm);
 #ifdef CONFIG_FS_POSIX_ACL
@@ -502,8 +505,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 			lmd.posix_acl = NULL;
 		}
 #endif
-		err = IS_ERR(root) ? PTR_ERR(root) : -EBADF;
-		root = NULL;
+		err = -EBADF;
 		CERROR("lustre_lite: bad iget4 for root\n");
 		goto out_root;
 	}
@@ -532,7 +534,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 				 &sbi->ll_cache, NULL);
 
 	sb->s_root = d_make_root(root);
-	if (sb->s_root == NULL) {
+	if (!sb->s_root) {
 		CERROR("%s: can't make root dentry\n",
 			ll_get_fsname(sb, NULL, 0));
 		err = -ENOMEM;
@@ -543,11 +545,13 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 
 	/* We set sb->s_dev equal on all lustre clients in order to support
 	 * NFS export clustering.  NFSD requires that the FSID be the same
-	 * on all clients. */
+	 * on all clients.
+	 */
 	/* s_dev is also used in lt_compare() to compare two fs, but that is
-	 * only a node-local comparison. */
+	 * only a node-local comparison.
+	 */
 	uuid = obd_get_uuid(sbi->ll_md_exp);
-	if (uuid != NULL) {
+	if (uuid) {
 		sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
 		get_uuid2fsid(uuid->uuid, strlen(uuid->uuid), &sbi->ll_fsid);
 	}
@@ -619,13 +623,12 @@ static void client_common_put_super(struct super_block *sb)
 
 	cl_sb_fini(sb);
 
-	list_del(&sbi->ll_conn_chain);
-
 	obd_fid_fini(sbi->ll_dt_exp->exp_obd);
 	obd_disconnect(sbi->ll_dt_exp);
 	sbi->ll_dt_exp = NULL;
 	/* wait till all OSCs are gone, since cl_cache is accessing sbi.
-	 * see LU-2543. */
+	 * see LU-2543.
+	 */
 	obd_zombie_barrier();
 
 	ldebugfs_unregister_mountpoint(sbi);
@@ -646,7 +649,8 @@ void ll_kill_super(struct super_block *sb)
 	sbi = ll_s2sbi(sb);
 	/* we need to restore s_dev from changed for clustered NFS before
 	 * put_super because new kernels have cached s_dev and change sb->s_dev
-	 * in put_super not affected real removing devices */
+	 * in put_super not affected real removing devices
+	 */
 	if (sbi) {
 		sb->s_dev = sbi->ll_sdev_orig;
 		sbi->ll_umounting = 1;
@@ -777,7 +781,7 @@ static int ll_options(char *options, int *flags)
 next:
 		/* Find next opt */
 		s2 = strchr(s1, ',');
-		if (s2 == NULL)
+		if (!s2)
 			break;
 		s1 = s2 + 1;
 	}
@@ -797,7 +801,6 @@ void ll_lli_init(struct ll_inode_info *lli)
 	/* Do not set lli_fid, it has been initialized already. */
 	fid_zero(&lli->lli_pfid);
 	INIT_LIST_HEAD(&lli->lli_close_list);
-	atomic_set(&lli->lli_open_count, 0);
 	lli->lli_rmtperm_time = 0;
 	lli->lli_pending_och = NULL;
 	lli->lli_mds_read_och = NULL;
@@ -890,8 +893,9 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
 	sb->s_d_op = &ll_d_ops;
 
 	/* Generate a string unique to this super, in case some joker tries
-	   to mount the same fs at two mount points.
-	   Use the address of the super itself.*/
+	 * to mount the same fs at two mount points.
+	 * Use the address of the super itself.
+	 */
 	cfg->cfg_instance = sb;
 	cfg->cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
 	cfg->cfg_callback = class_config_llog_handler;
@@ -904,7 +908,7 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
 
 	/* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */
 	lprof = class_get_profile(profilenm);
-	if (lprof == NULL) {
+	if (!lprof) {
 		LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be read from the MGS.  Does that filesystem exist?\n",
 				   profilenm);
 		err = -EINVAL;
@@ -964,7 +968,8 @@ void ll_put_super(struct super_block *sb)
 	}
 
 	/* We need to set force before the lov_disconnect in
-	   lustre_common_put_super, since l_d cleans up osc's as well. */
+	 * lustre_common_put_super, since l_d cleans up osc's as well.
+	 */
 	if (force) {
 		next = 0;
 		while ((obd = class_devices_in_group(&sbi->ll_sb_uuid,
@@ -1036,8 +1041,8 @@ void ll_clear_inode(struct inode *inode)
 
 	if (S_ISDIR(inode->i_mode)) {
 		/* these should have been cleared in ll_file_release */
-		LASSERT(lli->lli_opendir_key == NULL);
-		LASSERT(lli->lli_sai == NULL);
+		LASSERT(!lli->lli_opendir_key);
+		LASSERT(!lli->lli_sai);
 		LASSERT(lli->lli_opendir_pid == 0);
 	}
 
@@ -1065,7 +1070,7 @@ void ll_clear_inode(struct inode *inode)
 	ll_xattr_cache_destroy(inode);
 
 	if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
-		LASSERT(lli->lli_posix_acl == NULL);
+		LASSERT(!lli->lli_posix_acl);
 		if (lli->lli_remote_perms) {
 			free_rmtperm_hash(lli->lli_remote_perms);
 			lli->lli_remote_perms = NULL;
@@ -1074,7 +1079,7 @@ void ll_clear_inode(struct inode *inode)
 #ifdef CONFIG_FS_POSIX_ACL
 	else if (lli->lli_posix_acl) {
 		LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) == 1);
-		LASSERT(lli->lli_remote_perms == NULL);
+		LASSERT(!lli->lli_remote_perms);
 		posix_acl_release(lli->lli_posix_acl);
 		lli->lli_posix_acl = NULL;
 	}
@@ -1115,7 +1120,8 @@ static int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data,
 		if (rc == -ENOENT) {
 			clear_nlink(inode);
 			/* Unlinked special device node? Or just a race?
-			 * Pretend we done everything. */
+			 * Pretend we did everything.
+			 */
 			if (!S_ISREG(inode->i_mode) &&
 			    !S_ISDIR(inode->i_mode)) {
 				ia_valid = op_data->op_attr.ia_valid;
@@ -1138,7 +1144,8 @@ static int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data,
 
 	ia_valid = op_data->op_attr.ia_valid;
 	/* inode size will be in cl_setattr_ost, can't do it now since dirty
-	 * cache is not cleared yet. */
+	 * cache is not cleared yet.
+	 */
 	op_data->op_attr.ia_valid &= ~(TIMES_SET_FLAGS | ATTR_SIZE);
 	rc = simple_setattr(dentry, &op_data->op_attr);
 	op_data->op_attr.ia_valid = ia_valid;
@@ -1161,7 +1168,6 @@ static int ll_setattr_done_writing(struct inode *inode,
 	struct ll_inode_info *lli = ll_i2info(inode);
 	int rc = 0;
 
-	LASSERT(op_data != NULL);
 	if (!S_ISREG(inode->i_mode))
 		return 0;
 
@@ -1175,7 +1181,8 @@ static int ll_setattr_done_writing(struct inode *inode,
 	rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod);
 	if (rc == -EAGAIN)
 		/* MDS has instructed us to obtain Size-on-MDS attribute
-		 * from OSTs and send setattr to back to MDS. */
+		 * from OSTs and send setattr to back to MDS.
+		 */
 		rc = ll_som_update(inode, op_data);
 	else if (rc)
 		CERROR("inode %lu mdc truncate failed: rc = %d\n",
@@ -1222,7 +1229,8 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
 
 		/* The maximum Lustre file size is variable, based on the
 		 * OST maximum object size and number of stripes.  This
-		 * needs another check in addition to the VFS check above. */
+		 * needs another check in addition to the VFS check above.
+		 */
 		if (attr->ia_size > ll_file_maxbytes(inode)) {
 			CDEBUG(D_INODE, "file "DFID" too large %llu > %llu\n",
 			       PFID(&lli->lli_fid), attr->ia_size,
@@ -1270,7 +1278,8 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
 	}
 
 	/* We always do an MDS RPC, even if we're only changing the size;
-	 * only the MDS knows whether truncate() should fail with -ETXTBUSY */
+	 * only the MDS knows whether truncate() should fail with -ETXTBUSY
+	 */
 
 	op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
 	if (!op_data)
@@ -1304,7 +1313,8 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
 	/* if not in HSM import mode, clear size attr for released file
 	 * we clear the attribute send to MDT in op_data, not the original
 	 * received from caller in attr which is used later to
-	 * decide return code */
+	 * decide return code
+	 */
 	if (file_is_released && (attr->ia_valid & ATTR_SIZE) && !hsm_import)
 		op_data->op_attr.ia_valid &= ~ATTR_SIZE;
 
@@ -1342,7 +1352,8 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
 		 * extent lock (new_size:EOF for truncate).  It may seem
 		 * excessive to send mtime/atime updates to OSTs when not
 		 * setting times to past, but it is necessary due to possible
-		 * time de-synchronization between MDT inode and OST objects */
+		 * time de-synchronization between MDT inode and OST objects
+		 */
 		if (attr->ia_valid & ATTR_SIZE)
 			down_write(&lli->lli_trunc_sem);
 		rc = cl_setattr_ost(inode, attr);
@@ -1470,7 +1481,8 @@ int ll_statfs(struct dentry *de, struct kstatfs *sfs)
 	/* We need to downshift for all 32-bit kernels, because we can't
 	 * tell if the kernel is being called via sys_statfs64() or not.
 	 * Stop before overflowing f_bsize - in which case it is better
-	 * to just risk EOVERFLOW if caller is using old sys_statfs(). */
+	 * to just risk EOVERFLOW if caller is using old sys_statfs().
+	 */
 	if (sizeof(long) < 8) {
 		while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) {
 			sfs->f_bsize <<= 1;
@@ -1514,7 +1526,7 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
 	struct ll_sb_info *sbi = ll_i2sbi(inode);
 
 	LASSERT((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
-	if (lsm != NULL) {
+	if (lsm) {
 		if (!lli->lli_has_smd &&
 		    !(sbi->ll_flags & LL_SBI_LAYOUT_LOCK))
 			cl_file_inode_init(inode, md);
@@ -1599,12 +1611,13 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
 		if (exp_connect_som(ll_i2mdexp(inode)) &&
 		    S_ISREG(inode->i_mode)) {
 			struct lustre_handle lockh;
-			ldlm_mode_t mode;
+			enum ldlm_mode mode;
 
 			/* As it is possible a blocking ast has been processed
 			 * by this time, we need to check there is an UPDATE
 			 * lock on the client and set LLIF_MDS_SIZE_LOCK holding
-			 * it. */
+			 * it.
+			 */
 			mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE,
 					       &lockh, LDLM_FL_CBPENDING,
 					       LCK_CR | LCK_CW |
@@ -1617,7 +1630,8 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
 					       inode->i_ino, lli->lli_flags);
 				} else {
 					/* Use old size assignment to avoid
-					 * deadlock bz14138 & bz14326 */
+					 * deadlock bz14138 & bz14326
+					 */
 					i_size_write(inode, body->size);
 					spin_lock(&lli->lli_lock);
 					lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
@@ -1627,7 +1641,8 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
 			}
 		} else {
 			/* Use old size assignment to avoid
-			 * deadlock bz14138 & bz14326 */
+			 * deadlock bz14138 & bz14326
+			 */
 			i_size_write(inode, body->size);
 
 			CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n",
@@ -1657,7 +1672,8 @@ void ll_read_inode2(struct inode *inode, void *opaque)
 	/* Core attributes from the MDS first.  This is a new inode, and
 	 * the VFS doesn't zero times in the core inode so we have to do
 	 * it ourselves.  They will be overwritten by either MDS or OST
-	 * attributes - we just need to make sure they aren't newer. */
+	 * attributes - we just need to make sure they aren't newer.
+	 */
 	LTIME_S(inode->i_mtime) = 0;
 	LTIME_S(inode->i_atime) = 0;
 	LTIME_S(inode->i_ctime) = 0;
@@ -1689,9 +1705,10 @@ void ll_delete_inode(struct inode *inode)
 {
 	struct cl_inode_info *lli = cl_i2info(inode);
 
-	if (S_ISREG(inode->i_mode) && lli->lli_clob != NULL)
+	if (S_ISREG(inode->i_mode) && lli->lli_clob)
 		/* discard all dirty pages before truncating them, required by
-		 * osc_extent implementation at LU-1030. */
+		 * osc_extent implementation at LU-1030.
+		 */
 		cl_sync_file_range(inode, 0, OBD_OBJECT_EOF,
 				   CL_FSYNC_DISCARD, 1);
 
@@ -1831,7 +1848,7 @@ void ll_umount_begin(struct super_block *sb)
 	       sb->s_count, atomic_read(&sb->s_active));
 
 	obd = class_exp2obd(sbi->ll_md_exp);
-	if (obd == NULL) {
+	if (!obd) {
 		CERROR("Invalid MDC connection handle %#llx\n",
 		       sbi->ll_md_exp->exp_handle.h_cookie);
 		return;
@@ -1839,7 +1856,7 @@ void ll_umount_begin(struct super_block *sb)
 	obd->obd_force = 1;
 
 	obd = class_exp2obd(sbi->ll_dt_exp);
-	if (obd == NULL) {
+	if (!obd) {
 		CERROR("Invalid LOV connection handle %#llx\n",
 		       sbi->ll_dt_exp->exp_handle.h_cookie);
 		return;
@@ -1941,7 +1958,7 @@ int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
 		  struct super_block *sb, struct lookup_intent *it)
 {
 	struct ll_sb_info *sbi = NULL;
-	struct lustre_md md;
+	struct lustre_md md = { NULL };
 	int rc;
 
 	LASSERT(*inode || sb);
@@ -1954,7 +1971,7 @@ int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
 	if (*inode) {
 		ll_update_inode(*inode, &md);
 	} else {
-		LASSERT(sb != NULL);
+		LASSERT(sb);
 
 		/*
 		 * At this point server returns to client's same fid as client
@@ -1965,15 +1982,14 @@ int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
 		*inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1,
 					     sbi->ll_flags & LL_SBI_32BIT_API),
 				 &md);
-		if (*inode == NULL || IS_ERR(*inode)) {
+		if (!inode) {
 #ifdef CONFIG_FS_POSIX_ACL
 			if (md.posix_acl) {
 				posix_acl_release(md.posix_acl);
 				md.posix_acl = NULL;
 			}
 #endif
-			rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM;
-			*inode = NULL;
+			rc = -ENOMEM;
 			CERROR("new_inode -fatal: rc %d\n", rc);
 			goto out;
 		}
@@ -1986,14 +2002,15 @@ int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
 	 * 1. proc1: mdt returns a lsm but not granting layout
 	 * 2. layout was changed by another client
 	 * 3. proc2: refresh layout and layout lock granted
-	 * 4. proc1: to apply a stale layout */
-	if (it != NULL && it->d.lustre.it_lock_mode != 0) {
+	 * 4. proc1: to apply a stale layout
+	 */
+	if (it && it->d.lustre.it_lock_mode != 0) {
 		struct lustre_handle lockh;
 		struct ldlm_lock *lock;
 
 		lockh.cookie = it->d.lustre.it_lock_handle;
 		lock = ldlm_handle2lock(&lockh);
-		LASSERT(lock != NULL);
+		LASSERT(lock);
 		if (ldlm_has_layout(lock)) {
 			struct cl_object_conf conf;
 
@@ -2008,7 +2025,7 @@ int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
 	}
 
 out:
-	if (md.lsm != NULL)
+	if (md.lsm)
 		obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
 	md_free_lustre_md(sbi->ll_md_exp, &md);
 
@@ -2099,7 +2116,8 @@ int ll_process_config(struct lustre_cfg *lcfg)
 	LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
 
 	/* Note we have not called client_common_fill_super yet, so
-	   proc fns must be able to handle that! */
+	 * proc fns must be able to handle that!
+	 */
 	rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars,
 				      lcfg, sb);
 	if (rc > 0)
@@ -2113,15 +2131,13 @@ struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data,
 				       const char *name, int namelen,
 				       int mode, __u32 opc, void *data)
 {
-	LASSERT(i1 != NULL);
-
 	if (namelen > ll_i2sbi(i1)->ll_namelen)
 		return ERR_PTR(-ENAMETOOLONG);
 
-	if (op_data == NULL)
+	if (!op_data)
 		op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
 
-	if (op_data == NULL)
+	if (!op_data)
 		return ERR_PTR(-ENOMEM);
 
 	ll_i2gids(op_data->op_suppgids, i1, i2);
@@ -2141,8 +2157,8 @@ struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data,
 	op_data->op_cap = cfs_curproc_cap_pack();
 	op_data->op_bias = 0;
 	op_data->op_cli_flags = 0;
-	if ((opc == LUSTRE_OPC_CREATE) && (name != NULL) &&
-	     filename_is_volatile(name, namelen, NULL))
+	if ((opc == LUSTRE_OPC_CREATE) && name &&
+	    filename_is_volatile(name, namelen, NULL))
 		op_data->op_bias |= MDS_CREATE_VOLATILE;
 	op_data->op_opc = opc;
 	op_data->op_mds = 0;
@@ -2150,7 +2166,8 @@ struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data,
 
 	/* If the file is being opened after mknod() (normally due to NFS)
 	 * try to use the default stripe data from parent directory for
-	 * allocating OST objects.  Try to pass the parent FID to MDS. */
+	 * allocating OST objects.  Try to pass the parent FID to MDS.
+	 */
 	if (opc == LUSTRE_OPC_CREATE && i1 == i2 && S_ISREG(i2->i_mode) &&
 	    !ll_i2info(i2)->lli_has_smd) {
 		struct ll_inode_info *lli = ll_i2info(i2);
@@ -2177,7 +2194,7 @@ int ll_show_options(struct seq_file *seq, struct dentry *dentry)
 {
 	struct ll_sb_info *sbi;
 
-	LASSERT((seq != NULL) && (dentry != NULL));
+	LASSERT(seq && dentry);
 	sbi = ll_s2sbi(dentry->d_sb);
 
 	if (sbi->ll_flags & LL_SBI_NOLCK)
@@ -2238,10 +2255,11 @@ char *ll_get_fsname(struct super_block *sb, char *buf, int buflen)
 	char *ptr;
 	int len;
 
-	if (buf == NULL) {
+	if (!buf) {
 		/* this means the caller wants to use static buffer
 		 * and it doesn't care about race. Usually this is
-		 * in error reporting path */
+		 * in error reporting path
+		 */
 		buf = fsname_static;
 		buflen = sizeof(fsname_static);
 	}
@@ -2267,9 +2285,9 @@ void ll_dirty_page_discard_warn(struct page *page, int ioret)
 
 	/* this can be called inside spin lock so use GFP_ATOMIC. */
 	buf = (char *)__get_free_page(GFP_ATOMIC);
-	if (buf != NULL) {
+	if (buf) {
 		dentry = d_find_alias(page->mapping->host);
-		if (dentry != NULL)
+		if (dentry)
 			path = dentry_path_raw(dentry, buf, PAGE_SIZE);
 	}
 
@@ -2280,9 +2298,9 @@ void ll_dirty_page_discard_warn(struct page *page, int ioret)
 	       PFID(&obj->cob_header.coh_lu.loh_fid),
 	       (path && !IS_ERR(path)) ? path : "", ioret);
 
-	if (dentry != NULL)
+	if (dentry)
 		dput(dentry);
 
-	if (buf != NULL)
+	if (buf)
 		free_page((unsigned long)buf);
 }
diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c
index bbae95c..31abdb7f 100644
--- a/drivers/staging/lustre/lustre/llite/llite_mmap.c
+++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c
@@ -72,7 +72,7 @@ struct vm_area_struct *our_vma(struct mm_struct *mm, unsigned long addr,
 	LASSERT(!down_write_trylock(&mm->mmap_sem));
 
 	for (vma = find_vma(mm, addr);
-	    vma != NULL && vma->vm_start < (addr + count); vma = vma->vm_next) {
+	    vma && vma->vm_start < (addr + count); vma = vma->vm_next) {
 		if (vma->vm_ops && vma->vm_ops == &ll_file_vm_ops &&
 		    vma->vm_flags & VM_SHARED) {
 			ret = vma;
@@ -119,13 +119,13 @@ ll_fault_io_init(struct vm_area_struct *vma, struct lu_env **env_ret,
 	 */
 	env = cl_env_nested_get(nest);
 	if (IS_ERR(env))
-		 return ERR_PTR(-EINVAL);
+		return ERR_PTR(-EINVAL);
 
 	*env_ret = env;
 
 	io = ccc_env_thread_io(env);
 	io->ci_obj = ll_i2info(inode)->lli_clob;
-	LASSERT(io->ci_obj != NULL);
+	LASSERT(io->ci_obj);
 
 	fio = &io->u.ci_fault;
 	fio->ft_index      = index;
@@ -136,7 +136,7 @@ ll_fault_io_init(struct vm_area_struct *vma, struct lu_env **env_ret,
 	 * the kernel will not read other pages not covered by ldlm in
 	 * filemap_nopage. we do our readahead in ll_readpage.
 	 */
-	if (ra_flags != NULL)
+	if (ra_flags)
 		*ra_flags = vma->vm_flags & (VM_RAND_READ|VM_SEQ_READ);
 	vma->vm_flags &= ~VM_SEQ_READ;
 	vma->vm_flags |= VM_RAND_READ;
@@ -151,8 +151,7 @@ ll_fault_io_init(struct vm_area_struct *vma, struct lu_env **env_ret,
 
 		LASSERT(cio->cui_cl.cis_io == io);
 
-		/* mmap lock must be MANDATORY it has to cache
-		 * pages. */
+		/* mmap lock must be MANDATORY it has to cache pages. */
 		io->ci_lockreq = CILR_MANDATORY;
 		cio->cui_fd = fd;
 	} else {
@@ -178,8 +177,6 @@ static int ll_page_mkwrite0(struct vm_area_struct *vma, struct page *vmpage,
 	struct inode	     *inode;
 	struct ll_inode_info     *lli;
 
-	LASSERT(vmpage != NULL);
-
 	io = ll_fault_io_init(vma, &env,  &nest, vmpage->index, NULL);
 	if (IS_ERR(io)) {
 		result = PTR_ERR(io);
@@ -201,7 +198,8 @@ static int ll_page_mkwrite0(struct vm_area_struct *vma, struct page *vmpage,
 
 	/* we grab lli_trunc_sem to exclude truncate case.
 	 * Otherwise, we could add dirty pages into osc cache
-	 * while truncate is on-going. */
+	 * while truncate is on-going.
+	 */
 	inode = ccc_object_inode(io->ci_obj);
 	lli = ll_i2info(inode);
 	down_read(&lli->lli_trunc_sem);
@@ -217,12 +215,13 @@ static int ll_page_mkwrite0(struct vm_area_struct *vma, struct page *vmpage,
 		struct ll_inode_info *lli = ll_i2info(inode);
 
 		lock_page(vmpage);
-		if (vmpage->mapping == NULL) {
+		if (!vmpage->mapping) {
 			unlock_page(vmpage);
 
 			/* page was truncated and lock was cancelled, return
 			 * ENODATA so that VM_FAULT_NOPAGE will be returned
-			 * to handle_mm_fault(). */
+			 * to handle_mm_fault().
+			 */
 			if (result == 0)
 				result = -ENODATA;
 		} else if (!PageDirty(vmpage)) {
@@ -315,12 +314,13 @@ static int ll_fault0(struct vm_area_struct *vma, struct vm_fault *vmf)
 		result = cl_io_loop(env, io);
 
 		/* ft_flags are only valid if we reached
-		 * the call to filemap_fault */
+		 * the call to filemap_fault
+		 */
 		if (vio->u.fault.fault.ft_flags_valid)
 			fault_ret = vio->u.fault.fault.ft_flags;
 
 		vmpage = vio->u.fault.ft_vmpage;
-		if (result != 0 && vmpage != NULL) {
+		if (result != 0 && vmpage) {
 			page_cache_release(vmpage);
 			vmf->page = NULL;
 		}
@@ -344,9 +344,10 @@ static int ll_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	int result;
 	sigset_t set;
 
-	/* Only SIGKILL and SIGTERM is allowed for fault/nopage/mkwrite
+	/* Only SIGKILL and SIGTERM are allowed for fault/nopage/mkwrite
 	 * so that it can be killed by admin but not cause segfault by
-	 * other signals. */
+	 * other signals.
+	 */
 	set = cfs_block_sigsinv(sigmask(SIGKILL) | sigmask(SIGTERM));
 
 restart:
@@ -357,7 +358,7 @@ restart:
 
 		/* check if this page has been truncated */
 		lock_page(vmpage);
-		if (unlikely(vmpage->mapping == NULL)) { /* unlucky */
+		if (unlikely(!vmpage->mapping)) { /* unlucky */
 			unlock_page(vmpage);
 			page_cache_release(vmpage);
 			vmf->page = NULL;
@@ -447,7 +448,8 @@ static void ll_vm_close(struct vm_area_struct *vma)
 }
 
 /* XXX put nice comment here.  talk about __free_pte -> dirty pages and
- * nopage's reference passing to the pte */
+ * nopage's reference passing to the pte
+ */
 int ll_teardown_mmaps(struct address_space *mapping, __u64 first, __u64 last)
 {
 	int rc = -ENOENT;
diff --git a/drivers/staging/lustre/lustre/llite/llite_nfs.c b/drivers/staging/lustre/lustre/llite/llite_nfs.c
index 9f64dd1..74a8868 100644
--- a/drivers/staging/lustre/lustre/llite/llite_nfs.c
+++ b/drivers/staging/lustre/lustre/llite/llite_nfs.c
@@ -105,7 +105,8 @@ struct inode *search_inode_for_lustre(struct super_block *sb,
 		return ERR_PTR(rc);
 
 	/* Because inode is NULL, ll_prep_md_op_data can not
-	 * be used here. So we allocate op_data ourselves */
+	 * be used here. So we allocate op_data ourselves
+	 */
 	op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
 	if (!op_data)
 		return ERR_PTR(-ENOMEM);
@@ -141,10 +142,11 @@ ll_iget_for_nfs(struct super_block *sb, struct lu_fid *fid, struct lu_fid *paren
 	struct inode  *inode;
 	struct dentry *result;
 
-	CDEBUG(D_INFO, "Get dentry for fid: "DFID"\n", PFID(fid));
 	if (!fid_is_sane(fid))
 		return ERR_PTR(-ESTALE);
 
+	CDEBUG(D_INFO, "Get dentry for fid: " DFID "\n", PFID(fid));
+
 	inode = search_inode_for_lustre(sb, fid);
 	if (IS_ERR(inode))
 		return ERR_CAST(inode);
@@ -160,7 +162,7 @@ ll_iget_for_nfs(struct super_block *sb, struct lu_fid *fid, struct lu_fid *paren
 	 * We have to find the parent to tell MDS how to init lov objects.
 	 */
 	if (S_ISREG(inode->i_mode) && !ll_i2info(inode)->lli_has_smd &&
-	    parent != NULL) {
+	    parent && !fid_is_zero(parent)) {
 		struct ll_inode_info *lli = ll_i2info(inode);
 
 		spin_lock(&lli->lli_lock);
@@ -174,8 +176,6 @@ ll_iget_for_nfs(struct super_block *sb, struct lu_fid *fid, struct lu_fid *paren
 	return result;
 }
 
-#define LUSTRE_NFS_FID	  0x97
-
 /**
  * \a connectable - is nfsd will connect himself or this should be done
  *		  at lustre
@@ -188,20 +188,25 @@ ll_iget_for_nfs(struct super_block *sb, struct lu_fid *fid, struct lu_fid *paren
 static int ll_encode_fh(struct inode *inode, __u32 *fh, int *plen,
 			struct inode *parent)
 {
+	int fileid_len = sizeof(struct lustre_nfs_fid) / 4;
 	struct lustre_nfs_fid *nfs_fid = (void *)fh;
 
 	CDEBUG(D_INFO, "encoding for (%lu,"DFID") maxlen=%d minlen=%d\n",
-	      inode->i_ino, PFID(ll_inode2fid(inode)), *plen,
-	      (int)sizeof(struct lustre_nfs_fid));
+	      inode->i_ino, PFID(ll_inode2fid(inode)), *plen, fileid_len);
 
-	if (*plen < sizeof(struct lustre_nfs_fid) / 4)
-		return 255;
+	if (*plen < fileid_len) {
+		*plen = fileid_len;
+		return FILEID_INVALID;
+	}
 
 	nfs_fid->lnf_child = *ll_inode2fid(inode);
-	nfs_fid->lnf_parent = *ll_inode2fid(parent);
-	*plen = sizeof(struct lustre_nfs_fid) / 4;
+	if (parent)
+		nfs_fid->lnf_parent = *ll_inode2fid(parent);
+	else
+		fid_zero(&nfs_fid->lnf_parent);
+	*plen = fileid_len;
 
-	return LUSTRE_NFS_FID;
+	return FILEID_LUSTRE;
 }
 
 static int ll_nfs_get_name_filldir(struct dir_context *ctx, const char *name,
@@ -209,7 +214,8 @@ static int ll_nfs_get_name_filldir(struct dir_context *ctx, const char *name,
 				   unsigned type)
 {
 	/* It is hack to access lde_fid for comparison with lgd_fid.
-	 * So the input 'name' must be part of the 'lu_dirent'. */
+	 * So the input 'name' must be part of the 'lu_dirent'.
+	 */
 	struct lu_dirent *lde = container_of0(name, struct lu_dirent, lde_name);
 	struct ll_getname_data *lgd =
 		container_of(ctx, struct ll_getname_data, ctx);
@@ -259,7 +265,7 @@ static struct dentry *ll_fh_to_dentry(struct super_block *sb, struct fid *fid,
 {
 	struct lustre_nfs_fid *nfs_fid = (struct lustre_nfs_fid *)fid;
 
-	if (fh_type != LUSTRE_NFS_FID)
+	if (fh_type != FILEID_LUSTRE)
 		return ERR_PTR(-EPROTO);
 
 	return ll_iget_for_nfs(sb, &nfs_fid->lnf_child, &nfs_fid->lnf_parent);
@@ -270,7 +276,7 @@ static struct dentry *ll_fh_to_parent(struct super_block *sb, struct fid *fid,
 {
 	struct lustre_nfs_fid *nfs_fid = (struct lustre_nfs_fid *)fid;
 
-	if (fh_type != LUSTRE_NFS_FID)
+	if (fh_type != FILEID_LUSTRE)
 		return ERR_PTR(-EPROTO);
 
 	return ll_iget_for_nfs(sb, &nfs_fid->lnf_parent, NULL);
diff --git a/drivers/staging/lustre/lustre/llite/llite_rmtacl.c b/drivers/staging/lustre/lustre/llite/llite_rmtacl.c
index b27c3f2..63e4847 100644
--- a/drivers/staging/lustre/lustre/llite/llite_rmtacl.c
+++ b/drivers/staging/lustre/lustre/llite/llite_rmtacl.c
@@ -125,12 +125,12 @@ int rct_add(struct rmtacl_ctl_table *rct, pid_t key, int ops)
 	struct rmtacl_ctl_entry *rce, *e;
 
 	rce = rce_alloc(key, ops);
-	if (rce == NULL)
+	if (!rce)
 		return -ENOMEM;
 
 	spin_lock(&rct->rct_lock);
 	e = __rct_search(rct, key);
-	if (unlikely(e != NULL)) {
+	if (unlikely(e)) {
 		CWARN("Unexpected stale rmtacl_entry found: [key: %d] [ops: %d]\n",
 		      (int)key, ops);
 		rce_free(e);
@@ -213,7 +213,7 @@ static struct eacl_entry *__et_search_del(struct eacl_table *et, pid_t key,
 	struct eacl_entry *ee;
 	struct list_head *head = &et->et_entries[ee_hashfunc(key)];
 
-	LASSERT(fid != NULL);
+	LASSERT(fid);
 	list_for_each_entry(ee, head, ee_list)
 		if (ee->ee_key == key) {
 			if (lu_fid_eq(&ee->ee_fid, fid) &&
@@ -256,12 +256,12 @@ int ee_add(struct eacl_table *et, pid_t key, struct lu_fid *fid, int type,
 	struct eacl_entry *ee, *e;
 
 	ee = ee_alloc(key, fid, type, header);
-	if (ee == NULL)
+	if (!ee)
 		return -ENOMEM;
 
 	spin_lock(&et->et_lock);
 	e = __et_search_del(et, key, fid, type);
-	if (unlikely(e != NULL)) {
+	if (unlikely(e)) {
 		CWARN("Unexpected stale eacl_entry found: [key: %d] [fid: " DFID "] [type: %d]\n",
 		      (int)key, PFID(fid), type);
 		ee_free(e);
diff --git a/drivers/staging/lustre/lustre/llite/lloop.c b/drivers/staging/lustre/lustre/llite/lloop.c
index 69c41af..3f53292 100644
--- a/drivers/staging/lustre/lustre/llite/lloop.c
+++ b/drivers/staging/lustre/lustre/llite/lloop.c
@@ -211,9 +211,8 @@ static int do_bio_lustrebacked(struct lloop_device *lo, struct bio *head)
 		return io->ci_result;
 	io->ci_lockreq = CILR_NEVER;
 
-	LASSERT(head != NULL);
 	rw = head->bi_rw;
-	for (bio = head; bio != NULL; bio = bio->bi_next) {
+	for (bio = head; bio ; bio = bio->bi_next) {
 		LASSERT(rw == bio->bi_rw);
 
 		offset = (pgoff_t)(bio->bi_iter.bi_sector << 9) + lo->lo_offset;
@@ -297,7 +296,7 @@ static unsigned int loop_get_bio(struct lloop_device *lo, struct bio **req)
 
 	spin_lock_irq(&lo->lo_lock);
 	first = lo->lo_bio;
-	if (unlikely(first == NULL)) {
+	if (unlikely(!first)) {
 		spin_unlock_irq(&lo->lo_lock);
 		return 0;
 	}
@@ -308,7 +307,7 @@ static unsigned int loop_get_bio(struct lloop_device *lo, struct bio **req)
 	rw = first->bi_rw;
 	bio = &lo->lo_bio;
 	while (*bio && (*bio)->bi_rw == rw) {
-		CDEBUG(D_INFO, "bio sector %llu size %u count %u vcnt%u \n",
+		CDEBUG(D_INFO, "bio sector %llu size %u count %u vcnt%u\n",
 		       (unsigned long long)(*bio)->bi_iter.bi_sector,
 		       (*bio)->bi_iter.bi_size,
 		       page_count, (*bio)->bi_vcnt);
@@ -458,7 +457,7 @@ static int loop_thread(void *data)
 			       total_count, times, total_count / times);
 		}
 
-		LASSERT(bio != NULL);
+		LASSERT(bio);
 		LASSERT(count <= atomic_read(&lo->lo_pending));
 		loop_handle_bio(lo, bio);
 		atomic_sub(count, &lo->lo_pending);
@@ -560,7 +559,7 @@ static int loop_clr_fd(struct lloop_device *lo, struct block_device *bdev,
 	if (lo->lo_refcnt > count)	/* we needed one fd for the ioctl */
 		return -EBUSY;
 
-	if (filp == NULL)
+	if (!filp)
 		return -EINVAL;
 
 	spin_lock_irq(&lo->lo_lock);
@@ -625,11 +624,11 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode,
 	case LL_IOC_LLOOP_INFO: {
 		struct lu_fid fid;
 
-		if (lo->lo_backing_file == NULL) {
+		if (!lo->lo_backing_file) {
 			err = -ENOENT;
 			break;
 		}
-		if (inode == NULL)
+		if (!inode)
 			inode = file_inode(lo->lo_backing_file);
 		if (lo->lo_state == LLOOP_BOUND)
 			fid = ll_i2info(inode)->lli_fid;
@@ -676,7 +675,7 @@ static enum llioc_iter lloop_ioctl(struct inode *unused, struct file *file,
 	if (magic != ll_iocontrol_magic)
 		return LLIOC_CONT;
 
-	if (disks == NULL) {
+	if (!disks) {
 		err = -ENODEV;
 		goto out1;
 	}
@@ -793,7 +792,7 @@ static int __init lloop_init(void)
 	       lloop_major, max_loop);
 
 	ll_iocontrol_magic = ll_iocontrol_register(lloop_ioctl, 2, cmdlist);
-	if (ll_iocontrol_magic == NULL)
+	if (!ll_iocontrol_magic)
 		goto out_mem1;
 
 	loop_dev = kcalloc(max_loop, sizeof(*loop_dev), GFP_KERNEL);
diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c
index f134ad9..f5fe928 100644
--- a/drivers/staging/lustre/lustre/llite/lproc_llite.c
+++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c
@@ -43,7 +43,7 @@
 #include "llite_internal.h"
 #include "vvp_internal.h"
 
-/* /proc/lustre/llite mount point registration */
+/* debugfs llite mount point registration */
 static struct file_operations ll_rw_extents_stats_fops;
 static struct file_operations ll_rw_extents_stats_pp_fops;
 static struct file_operations ll_rw_offset_stats_fops;
@@ -345,7 +345,8 @@ static ssize_t max_read_ahead_whole_mb_store(struct kobject *kobj,
 		return rc;
 
 	/* Cap this at the current max readahead window size, the readahead
-	 * algorithm does this anyway so it's pointless to set it larger. */
+	 * algorithm does this anyway so it's pointless to set it larger.
+	 */
 	if (pages_number > sbi->ll_ra_info.ra_max_pages_per_file) {
 		CERROR("can't set max_read_ahead_whole_mb more than max_read_ahead_per_file_mb: %lu\n",
 		       sbi->ll_ra_info.ra_max_pages_per_file >> (20 - PAGE_CACHE_SHIFT));
@@ -453,7 +454,7 @@ static ssize_t ll_max_cached_mb_seq_write(struct file *file,
 		if (diff <= 0)
 			break;
 
-		if (sbi->ll_dt_exp == NULL) { /* being initialized */
+		if (!sbi->ll_dt_exp) { /* being initialized */
 			rc = -ENODEV;
 			break;
 		}
@@ -966,9 +967,9 @@ int ldebugfs_register_mountpoint(struct dentry *parent,
 
 	name[MAX_STRING_SIZE] = '\0';
 
-	LASSERT(sbi != NULL);
-	LASSERT(mdc != NULL);
-	LASSERT(osc != NULL);
+	LASSERT(sbi);
+	LASSERT(mdc);
+	LASSERT(osc);
 
 	/* Get fsname */
 	len = strlen(lsi->lsi_lmd->lmd_profile);
@@ -1012,7 +1013,7 @@ int ldebugfs_register_mountpoint(struct dentry *parent,
 	/* File operations stats */
 	sbi->ll_stats = lprocfs_alloc_stats(LPROC_LL_FILE_OPCODES,
 					    LPROCFS_STATS_FLAG_NONE);
-	if (sbi->ll_stats == NULL) {
+	if (!sbi->ll_stats) {
 		err = -ENOMEM;
 		goto out;
 	}
@@ -1039,7 +1040,7 @@ int ldebugfs_register_mountpoint(struct dentry *parent,
 
 	sbi->ll_ra_stats = lprocfs_alloc_stats(ARRAY_SIZE(ra_stat_string),
 					       LPROCFS_STATS_FLAG_NONE);
-	if (sbi->ll_ra_stats == NULL) {
+	if (!sbi->ll_ra_stats) {
 		err = -ENOMEM;
 		goto out;
 	}
diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c
index da5f443..56d2d1d 100644
--- a/drivers/staging/lustre/lustre/llite/namei.c
+++ b/drivers/staging/lustre/lustre/llite/namei.c
@@ -118,7 +118,7 @@ struct inode *ll_iget(struct super_block *sb, ino_t hash,
 
 			ll_read_inode2(inode, md);
 			if (S_ISREG(inode->i_mode) &&
-			    ll_i2info(inode)->lli_clob == NULL) {
+			    !ll_i2info(inode)->lli_clob) {
 				CDEBUG(D_INODE,
 					"%s: apply lsm %p to inode "DFID".\n",
 					ll_get_fsname(sb, NULL, 0), md->lsm,
@@ -127,7 +127,7 @@ struct inode *ll_iget(struct super_block *sb, ino_t hash,
 			}
 			if (rc != 0) {
 				iget_failed(inode);
-				inode = ERR_PTR(rc);
+				inode = NULL;
 			} else
 				unlock_new_inode(inode);
 		} else if (!(inode->i_state & (I_FREEING | I_CLEAR)))
@@ -180,10 +180,11 @@ int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
 		__u64 bits = lock->l_policy_data.l_inodebits.bits;
 
 		/* Inode is set to lock->l_resource->lr_lvb_inode
-		 * for mdc - bug 24555 */
-		LASSERT(lock->l_ast_data == NULL);
+		 * for mdc - bug 24555
+		 */
+		LASSERT(!lock->l_ast_data);
 
-		if (inode == NULL)
+		if (!inode)
 			break;
 
 		/* Invalidate all dentries associated with this inode */
@@ -202,7 +203,8 @@ int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
 		}
 
 		/* For OPEN locks we differentiate between lock modes
-		 * LCK_CR, LCK_CW, LCK_PR - bug 22891 */
+		 * LCK_CR, LCK_CW, LCK_PR - bug 22891
+		 */
 		if (bits & MDS_INODELOCK_OPEN)
 			ll_have_md_lock(inode, &bits, lock->l_req_mode);
 
@@ -260,7 +262,7 @@ int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
 		}
 
 		if ((bits & (MDS_INODELOCK_LOOKUP | MDS_INODELOCK_PERM)) &&
-		    inode->i_sb->s_root != NULL &&
+		    inode->i_sb->s_root &&
 		    !is_root_inode(inode))
 			ll_invalidate_aliases(inode);
 
@@ -285,15 +287,11 @@ __u32 ll_i2suppgid(struct inode *i)
 /* Pack the required supplementary groups into the supplied groups array.
  * If we don't need to use the groups from the target inode(s) then we
  * instead pack one or more groups from the user's supplementary group
- * array in case it might be useful.  Not needed if doing an MDS-side upcall. */
+ * array in case it might be useful.  Not needed if doing an MDS-side upcall.
+ */
 void ll_i2gids(__u32 *suppgids, struct inode *i1, struct inode *i2)
 {
-#if 0
-	int i;
-#endif
-
-	LASSERT(i1 != NULL);
-	LASSERT(suppgids != NULL);
+	LASSERT(i1);
 
 	suppgids[0] = ll_i2suppgid(i1);
 
@@ -301,22 +299,6 @@ void ll_i2gids(__u32 *suppgids, struct inode *i1, struct inode *i2)
 		suppgids[1] = ll_i2suppgid(i2);
 		else
 			suppgids[1] = -1;
-
-#if 0
-	for (i = 0; i < current_ngroups; i++) {
-		if (suppgids[0] == -1) {
-			if (current_groups[i] != suppgids[1])
-				suppgids[0] = current_groups[i];
-			continue;
-		}
-		if (suppgids[1] == -1) {
-			if (current_groups[i] != suppgids[0])
-				suppgids[1] = current_groups[i];
-			continue;
-		}
-		break;
-	}
-#endif
 }
 
 /*
@@ -409,7 +391,8 @@ static int ll_lookup_it_finish(struct ptlrpc_request *request,
 	int rc = 0;
 
 	/* NB 1 request reference will be taken away by ll_intent_lock()
-	 * when I return */
+	 * when I return
+	 */
 	CDEBUG(D_DENTRY, "it %p it_disposition %x\n", it,
 	       it->d.lustre.it_disposition);
 	if (!it_disposition(it, DISP_LOOKUP_NEG)) {
@@ -420,13 +403,14 @@ static int ll_lookup_it_finish(struct ptlrpc_request *request,
 		ll_set_lock_data(ll_i2sbi(parent)->ll_md_exp, inode, it, &bits);
 
 		/* We used to query real size from OSTs here, but actually
-		   this is not needed. For stat() calls size would be updated
-		   from subsequent do_revalidate()->ll_inode_revalidate_it() in
-		   2.4 and
-		   vfs_getattr_it->ll_getattr()->ll_inode_revalidate_it() in 2.6
-		   Everybody else who needs correct file size would call
-		   ll_glimpse_size or some equivalent themselves anyway.
-		   Also see bug 7198. */
+		 * this is not needed. For stat() calls size would be updated
+		 * from subsequent do_revalidate()->ll_inode_revalidate_it() in
+		 * 2.4 and
+		 * vfs_getattr_it->ll_getattr()->ll_inode_revalidate_it() in 2.6
+		 * Everybody else who needs correct file size would call
+		 * ll_glimpse_size or some equivalent themselves anyway.
+		 * Also see bug 7198.
+		 */
 	}
 
 	/* Only hash *de if it is unhashed (new dentry).
@@ -443,9 +427,10 @@ static int ll_lookup_it_finish(struct ptlrpc_request *request,
 		*de = alias;
 	} else if (!it_disposition(it, DISP_LOOKUP_NEG)  &&
 		   !it_disposition(it, DISP_OPEN_CREATE)) {
-		/* With DISP_OPEN_CREATE dentry will
-		   instantiated in ll_create_it. */
-		LASSERT(d_inode(*de) == NULL);
+		/* With DISP_OPEN_CREATE dentry will be
+		 * instantiated in ll_create_it.
+		 */
+		LASSERT(!d_inode(*de));
 		d_instantiate(*de, inode);
 	}
 
@@ -498,7 +483,7 @@ static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
 	if (d_mountpoint(dentry))
 		CERROR("Tell Peter, lookup on mtpt, it %s\n", LL_IT2STR(it));
 
-	if (it == NULL || it->it_op == IT_GETXATTR)
+	if (!it || it->it_op == IT_GETXATTR)
 		it = &lookup_it;
 
 	if (it->it_op == IT_GETATTR) {
@@ -557,7 +542,7 @@ static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
  out:
 	if (req)
 		ptlrpc_req_finished(req);
-	if (it->it_op == IT_GETATTR && (retval == NULL || retval == dentry))
+	if (it->it_op == IT_GETATTR && (!retval || retval == dentry))
 		ll_statahead_mark(parent, dentry);
 	return retval;
 }
@@ -582,7 +567,7 @@ static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry,
 		itp = &it;
 	de = ll_lookup_it(parent, dentry, itp, 0);
 
-	if (itp != NULL)
+	if (itp)
 		ll_intent_release(itp);
 
 	return de;
@@ -622,7 +607,7 @@ static int ll_atomic_open(struct inode *dir, struct dentry *dentry,
 	de = ll_lookup_it(dir, dentry, it, lookup_flags);
 	if (IS_ERR(de))
 		rc = PTR_ERR(de);
-	else if (de != NULL)
+	else if (de)
 		dentry = de;
 
 	if (!rc) {
@@ -631,7 +616,7 @@ static int ll_atomic_open(struct inode *dir, struct dentry *dentry,
 			rc = ll_create_it(dir, dentry, mode, it);
 			if (rc) {
 				/* We dget in ll_splice_alias. */
-				if (de != NULL)
+				if (de)
 					dput(de);
 				goto out_release;
 			}
@@ -655,7 +640,7 @@ static int ll_atomic_open(struct inode *dir, struct dentry *dentry,
 				/* We dget in ll_splice_alias. finish_open takes
 				 * care of dget for fd open.
 				 */
-				if (de != NULL)
+				if (de)
 					dput(de);
 			}
 		} else {
@@ -693,7 +678,8 @@ static struct inode *ll_create_node(struct inode *dir, struct lookup_intent *it)
 
 	/* We asked for a lock on the directory, but were granted a
 	 * lock on the inode.  Since we finally have an inode pointer,
-	 * stuff it in the lock. */
+	 * stuff it in the lock.
+	 */
 	CDEBUG(D_DLMTRACE, "setting l_ast_data to inode %p (%lu/%u)\n",
 	       inode, inode->i_ino, inode->i_generation);
 	ll_set_lock_data(sbi->ll_md_exp, inode, it, NULL);
@@ -767,7 +753,7 @@ static int ll_new_node(struct inode *dir, struct dentry *dentry,
 	int tgt_len = 0;
 	int err;
 
-	if (unlikely(tgt != NULL))
+	if (unlikely(tgt))
 		tgt_len = strlen(tgt) + 1;
 
 	op_data = ll_prep_md_op_data(NULL, dir, NULL,
@@ -888,10 +874,11 @@ int ll_objects_destroy(struct ptlrpc_request *request, struct inode *dir)
 	/* The MDS sent back the EA because we unlinked the last reference
 	 * to this file. Use this EA to unlink the objects on the OST.
 	 * It's opaque so we don't swab here; we leave it to obd_unpackmd() to
-	 * check it is complete and sensible. */
+	 * check it is complete and sensible.
+	 */
 	eadata = req_capsule_server_sized_get(&request->rq_pill, &RMF_MDT_MD,
 					      body->eadatasize);
-	LASSERT(eadata != NULL);
+	LASSERT(eadata);
 
 	rc = obd_unpackmd(ll_i2dtexp(dir), &lsm, eadata, body->eadatasize);
 	if (rc < 0) {
@@ -901,7 +888,7 @@ int ll_objects_destroy(struct ptlrpc_request *request, struct inode *dir)
 	LASSERT(rc >= sizeof(*lsm));
 
 	oa = kmem_cache_alloc(obdo_cachep, GFP_NOFS | __GFP_ZERO);
-	if (oa == NULL) {
+	if (!oa) {
 		rc = -ENOMEM;
 		goto out_free_memmd;
 	}
@@ -917,7 +904,7 @@ int ll_objects_destroy(struct ptlrpc_request *request, struct inode *dir)
 						     &RMF_LOGCOOKIES,
 						   sizeof(struct llog_cookie) *
 						     lsm->lsm_stripe_count);
-		if (oti.oti_logcookies == NULL) {
+		if (!oti.oti_logcookies) {
 			oa->o_valid &= ~OBD_MD_FLCOOKIE;
 			body->valid &= ~OBD_MD_FLCOOKIE;
 		}
@@ -938,7 +925,8 @@ out:
 /* ll_unlink() doesn't update the inode with the new link count.
  * Instead, ll_ddelete() and ll_d_iput() will update it based upon if there
  * is any lock existing. They will recycle dentries and inodes based upon locks
- * too. b=20433 */
+ * too. b=20433
+ */
 static int ll_unlink(struct inode *dir, struct dentry *dentry)
 {
 	struct ptlrpc_request *request = NULL;
diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c
index 6b587d6..671039a 100644
--- a/drivers/staging/lustre/lustre/llite/rw.c
+++ b/drivers/staging/lustre/lustre/llite/rw.c
@@ -70,9 +70,9 @@ static void ll_cl_fini(struct ll_cl_context *lcc)
 	struct cl_page *page = lcc->lcc_page;
 
 	LASSERT(lcc->lcc_cookie == current);
-	LASSERT(env != NULL);
+	LASSERT(env);
 
-	if (page != NULL) {
+	if (page) {
 		lu_ref_del(&page->cp_reference, "cl_io", io);
 		cl_page_put(env, page);
 	}
@@ -97,7 +97,7 @@ static struct ll_cl_context *ll_cl_init(struct file *file,
 	int result = 0;
 
 	clob = ll_i2info(vmpage->mapping->host)->lli_clob;
-	LASSERT(clob != NULL);
+	LASSERT(clob);
 
 	env = cl_env_get(&refcheck);
 	if (IS_ERR(env))
@@ -111,7 +111,7 @@ static struct ll_cl_context *ll_cl_init(struct file *file,
 
 	cio = ccc_env_io(env);
 	io = cio->cui_cl.cis_io;
-	if (io == NULL && create) {
+	if (!io && create) {
 		struct inode *inode = vmpage->mapping->host;
 		loff_t pos;
 
@@ -120,7 +120,8 @@ static struct ll_cl_context *ll_cl_init(struct file *file,
 
 			/* this is too bad. Someone is trying to write the
 			 * page w/o holding inode mutex. This means we can
-			 * add dirty pages into cache during truncate */
+			 * add dirty pages into cache during truncate
+			 */
 			CERROR("Proc %s is dirtying page w/o inode lock, this will break truncate\n",
 			       current->comm);
 			dump_stack();
@@ -163,12 +164,11 @@ static struct ll_cl_context *ll_cl_init(struct file *file,
 	}
 
 	lcc->lcc_io = io;
-	if (io == NULL)
+	if (!io)
 		result = -EIO;
 	if (result == 0) {
 		struct cl_page   *page;
 
-		LASSERT(io != NULL);
 		LASSERT(io->ci_state == CIS_IO_GOING);
 		LASSERT(cio->cui_fd == LUSTRE_FPRIVATE(file));
 		page = cl_page_find(env, clob, vmpage->index, vmpage,
@@ -240,7 +240,8 @@ int ll_prepare_write(struct file *file, struct page *vmpage, unsigned from,
 			ll_cl_fini(lcc);
 		}
 		/* returning 0 in prepare assumes commit must be called
-		 * afterwards */
+		 * afterwards
+		 */
 	} else {
 		result = PTR_ERR(lcc);
 	}
@@ -296,8 +297,8 @@ static void ll_ra_stats_inc_sbi(struct ll_sb_info *sbi, enum ra_stat which);
  * to get an ra budget that is larger than the remaining readahead pages
  * and reach here at exactly the same time. They will compute /a ret to
  * consume the remaining pages, but will fail at atomic_add_return() and
- * get a zero ra window, although there is still ra space remaining. - Jay */
-
+ * get a zero ra window, although there is still ra space remaining. - Jay
+ */
 static unsigned long ll_ra_count_get(struct ll_sb_info *sbi,
 				     struct ra_io_arg *ria,
 				     unsigned long pages)
@@ -307,7 +308,8 @@ static unsigned long ll_ra_count_get(struct ll_sb_info *sbi,
 
 	/* If read-ahead pages left are less than 1M, do not do read-ahead,
 	 * otherwise it will form small read RPC(< 1M), which hurt server
-	 * performance a lot. */
+	 * performance a lot.
+	 */
 	ret = min(ra->ra_max_pages - atomic_read(&ra->ra_cur_pages), pages);
 	if (ret < 0 || ret < min_t(long, PTLRPC_MAX_BRW_PAGES, pages)) {
 		ret = 0;
@@ -324,7 +326,8 @@ static unsigned long ll_ra_count_get(struct ll_sb_info *sbi,
 	 * branch is more expensive than subtracting zero from the result.
 	 *
 	 * Strided read is left unaligned to avoid small fragments beyond
-	 * the RPC boundary from needing an extra read RPC. */
+	 * the RPC boundary from needing an extra read RPC.
+	 */
 	if (ria->ria_pages == 0) {
 		long beyond_rpc = (ria->ria_start + ret) % PTLRPC_MAX_BRW_PAGES;
 
@@ -364,7 +367,7 @@ void ll_ra_stats_inc(struct address_space *mapping, enum ra_stat which)
 #define RAS_CDEBUG(ras) \
 	CDEBUG(D_READA,						      \
 	       "lrp %lu cr %lu cp %lu ws %lu wl %lu nra %lu r %lu ri %lu"    \
-	       "csr %lu sf %lu sp %lu sl %lu \n",			    \
+	       "csr %lu sf %lu sp %lu sl %lu\n",			    \
 	       ras->ras_last_readpage, ras->ras_consecutive_requests,	\
 	       ras->ras_consecutive_pages, ras->ras_window_start,	    \
 	       ras->ras_window_len, ras->ras_next_readahead,		 \
@@ -378,9 +381,9 @@ static int index_in_window(unsigned long index, unsigned long point,
 	unsigned long start = point - before, end = point + after;
 
 	if (start > point)
-	       start = 0;
+		start = 0;
 	if (end < point)
-	       end = ~0;
+		end = ~0;
 
 	return start <= index && index <= end;
 }
@@ -473,7 +476,7 @@ static int ll_read_ahead_page(const struct lu_env *env, struct cl_io *io,
 	const char       *msg   = NULL;
 
 	vmpage = grab_cache_page_nowait(mapping, index);
-	if (vmpage != NULL) {
+	if (vmpage) {
 		/* Check if vmpage was truncated or reclaimed */
 		if (vmpage->mapping == mapping) {
 			page = cl_page_find(env, clob, vmpage->index,
@@ -500,7 +503,7 @@ static int ll_read_ahead_page(const struct lu_env *env, struct cl_io *io,
 		which = RA_STAT_FAILED_GRAB_PAGE;
 		msg   = "g_c_p_n failed";
 	}
-	if (msg != NULL) {
+	if (msg) {
 		ll_ra_stats_inc(mapping, which);
 		CDEBUG(D_READA, "%s\n", msg);
 	}
@@ -515,13 +518,15 @@ static int ll_read_ahead_page(const struct lu_env *env, struct cl_io *io,
 /* Limit this to the blocksize instead of PTLRPC_BRW_MAX_SIZE, since we don't
  * know what the actual RPC size is.  If this needs to change, it makes more
  * sense to tune the i_blkbits value for the file based on the OSTs it is
- * striped over, rather than having a constant value for all files here. */
+ * striped over, rather than having a constant value for all files here.
+ */
 
 /* RAS_INCREASE_STEP should be (1UL << (inode->i_blkbits - PAGE_CACHE_SHIFT)).
  * Temporarily set RAS_INCREASE_STEP to 1MB. After 4MB RPC is enabled
  * by default, this should be adjusted corresponding with max_read_ahead_mb
  * and max_read_ahead_per_file_mb otherwise the readahead budget can be used
- * up quickly which will affect read performance significantly. See LU-2816 */
+ * up quickly which will affect read performance significantly. See LU-2816
+ */
 #define RAS_INCREASE_STEP(inode) (ONE_MB_BRW_SIZE >> PAGE_CACHE_SHIFT)
 
 static inline int stride_io_mode(struct ll_readahead_state *ras)
@@ -570,7 +575,7 @@ stride_pg_count(pgoff_t st_off, unsigned long st_len, unsigned long st_pgs,
 	if (end_left > st_pgs)
 		end_left = st_pgs;
 
-	CDEBUG(D_READA, "start %llu, end %llu start_left %lu end_left %lu \n",
+	CDEBUG(D_READA, "start %llu, end %llu start_left %lu end_left %lu\n",
 	       start, end, start_left, end_left);
 
 	if (start == end)
@@ -600,7 +605,8 @@ static int ras_inside_ra_window(unsigned long idx, struct ra_io_arg *ria)
 	/* If ria_length == ria_pages, it means non-stride I/O mode,
 	 * idx should always inside read-ahead window in this case
 	 * For stride I/O mode, just check whether the idx is inside
-	 * the ria_pages. */
+	 * the ria_pages.
+	 */
 	return ria->ria_length == 0 || ria->ria_length == ria->ria_pages ||
 	       (idx >= ria->ria_stoff && (idx - ria->ria_stoff) %
 		ria->ria_length < ria->ria_pages);
@@ -616,7 +622,7 @@ static int ll_read_ahead_pages(const struct lu_env *env,
 	int rc, count = 0, stride_ria;
 	unsigned long page_idx;
 
-	LASSERT(ria != NULL);
+	LASSERT(ria);
 	RIA_DEBUG(ria);
 
 	stride_ria = ria->ria_length > ria->ria_pages && ria->ria_pages > 0;
@@ -634,11 +640,13 @@ static int ll_read_ahead_pages(const struct lu_env *env,
 		} else if (stride_ria) {
 			/* If it is not in the read-ahead window, and it is
 			 * read-ahead mode, then check whether it should skip
-			 * the stride gap */
+			 * the stride gap
+			 */
 			pgoff_t offset;
 			/* FIXME: This assertion only is valid when it is for
 			 * forward read-ahead, it will be fixed when backward
-			 * read-ahead is implemented */
+			 * read-ahead is implemented
+			 */
 			LASSERTF(page_idx > ria->ria_stoff, "Invalid page_idx %lu rs %lu re %lu ro %lu rl %lu rp %lu\n",
 				 page_idx,
 				 ria->ria_start, ria->ria_end, ria->ria_stoff,
@@ -647,7 +655,7 @@ static int ll_read_ahead_pages(const struct lu_env *env,
 			offset = offset % (ria->ria_length);
 			if (offset > ria->ria_pages) {
 				page_idx += ria->ria_length - offset;
-				CDEBUG(D_READA, "i %lu skip %lu \n", page_idx,
+				CDEBUG(D_READA, "i %lu skip %lu\n", page_idx,
 				       ria->ria_length - offset);
 				continue;
 			}
@@ -699,7 +707,7 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io,
 		bead = NULL;
 
 	/* Enlarge the RA window to encompass the full read */
-	if (bead != NULL && ras->ras_window_start + ras->ras_window_len <
+	if (bead && ras->ras_window_start + ras->ras_window_len <
 	    bead->lrr_start + bead->lrr_count) {
 		ras->ras_window_len = bead->lrr_start + bead->lrr_count -
 				      ras->ras_window_start;
@@ -721,7 +729,8 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io,
 		 */
 		/* Note: we only trim the RPC, instead of extending the RPC
 		 * to the boundary, so to avoid reading too much pages during
-		 * random reading. */
+		 * random reading.
+		 */
 		rpc_boundary = (end + 1) & (~(PTLRPC_MAX_BRW_PAGES - 1));
 		if (rpc_boundary > 0)
 			rpc_boundary--;
@@ -774,8 +783,9 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io,
 	 * the ras we need to go back and update the ras so that the
 	 * next read-ahead tries from where we left off.  we only do so
 	 * if the region we failed to issue read-ahead on is still ahead
-	 * of the app and behind the next index to start read-ahead from */
-	CDEBUG(D_READA, "ra_end %lu end %lu stride end %lu \n",
+	 * of the app and behind the next index to start read-ahead from
+	 */
+	CDEBUG(D_READA, "ra_end %lu end %lu stride end %lu\n",
 	       ra_end, end, ria->ria_end);
 
 	if (ra_end != end + 1) {
@@ -880,7 +890,8 @@ static void ras_update_stride_detector(struct ll_readahead_state *ras,
 }
 
 /* Stride Read-ahead window will be increased inc_len according to
- * stride I/O pattern */
+ * stride I/O pattern
+ */
 static void ras_stride_increase_window(struct ll_readahead_state *ras,
 				       struct ll_ra_info *ra,
 				       unsigned long inc_len)
@@ -951,7 +962,8 @@ void ras_update(struct ll_sb_info *sbi, struct inode *inode,
 	 * or reads to some other part of the file.  Secondly if we get a
 	 * read-ahead miss that we think we've previously issued.  This can
 	 * be a symptom of there being so many read-ahead pages that the VM is
-	 * reclaiming it before we get to it. */
+	 * reclaiming it before we get to it.
+	 */
 	if (!index_in_window(index, ras->ras_last_readpage, 8, 8)) {
 		zero = 1;
 		ll_ra_stats_inc_sbi(sbi, RA_STAT_DISTANT_READPAGE);
@@ -968,7 +980,8 @@ void ras_update(struct ll_sb_info *sbi, struct inode *inode,
 	 * file up to ra_max_pages_per_file.  This is simply a best effort
 	 * and only occurs once per open file.  Normal RA behavior is reverted
 	 * to for subsequent IO.  The mmap case does not increment
-	 * ras_requests and thus can never trigger this behavior. */
+	 * ras_requests and thus can never trigger this behavior.
+	 */
 	if (ras->ras_requests == 2 && !ras->ras_request_index) {
 		__u64 kms_pages;
 
@@ -1014,14 +1027,16 @@ void ras_update(struct ll_sb_info *sbi, struct inode *inode,
 			    stride_io_mode(ras)) {
 				/*If stride-RA hit cache miss, the stride dector
 				 *will not be reset to avoid the overhead of
-				 *redetecting read-ahead mode */
+				 *redetecting read-ahead mode
+				 */
 				if (index != ras->ras_last_readpage + 1)
 					ras->ras_consecutive_pages = 0;
 				ras_reset(inode, ras, index);
 				RAS_CDEBUG(ras);
 			} else {
 				/* Reset both stride window and normal RA
-				 * window */
+				 * window
+				 */
 				ras_reset(inode, ras, index);
 				ras->ras_consecutive_pages++;
 				ras_stride_reset(ras);
@@ -1030,7 +1045,8 @@ void ras_update(struct ll_sb_info *sbi, struct inode *inode,
 		} else if (stride_io_mode(ras)) {
 			/* If this is contiguous read but in stride I/O mode
 			 * currently, check whether stride step still is valid,
-			 * if invalid, it will reset the stride ra window*/
+			 * if invalid, it will reset the stride ra window
+			 */
 			if (!index_in_stride_window(ras, index)) {
 				/* Shrink stride read-ahead window to be zero */
 				ras_stride_reset(ras);
@@ -1046,7 +1062,8 @@ void ras_update(struct ll_sb_info *sbi, struct inode *inode,
 	if (stride_io_mode(ras))
 		/* Since stride readahead is sensitive to the offset
 		 * of read-ahead, so we use original offset here,
-		 * instead of ras_window_start, which is RPC aligned */
+		 * instead of ras_window_start, which is RPC aligned
+		 */
 		ras->ras_next_readahead = max(index, ras->ras_next_readahead);
 	else
 		ras->ras_next_readahead = max(ras->ras_window_start,
@@ -1054,7 +1071,8 @@ void ras_update(struct ll_sb_info *sbi, struct inode *inode,
 	RAS_CDEBUG(ras);
 
 	/* Trigger RA in the mmap case where ras_consecutive_requests
-	 * is not incremented and thus can't be used to trigger RA */
+	 * is not incremented and thus can't be used to trigger RA
+	 */
 	if (!ras->ras_window_len && ras->ras_consecutive_pages == 4) {
 		ras->ras_window_len = RAS_INCREASE_STEP(inode);
 		goto out_unlock;
@@ -1100,7 +1118,7 @@ int ll_writepage(struct page *vmpage, struct writeback_control *wbc)
 	LASSERT(PageLocked(vmpage));
 	LASSERT(!PageWriteback(vmpage));
 
-	LASSERT(ll_i2dtexp(inode) != NULL);
+	LASSERT(ll_i2dtexp(inode));
 
 	env = cl_env_nested_get(&nest);
 	if (IS_ERR(env)) {
@@ -1109,7 +1127,7 @@ int ll_writepage(struct page *vmpage, struct writeback_control *wbc)
 	}
 
 	clob  = ll_i2info(inode)->lli_clob;
-	LASSERT(clob != NULL);
+	LASSERT(clob);
 
 	io = ccc_env_thread_io(env);
 	io->ci_obj = clob;
@@ -1152,14 +1170,16 @@ int ll_writepage(struct page *vmpage, struct writeback_control *wbc)
 		/* Flush page failed because the extent is being written out.
 		 * Wait for the write of extent to be finished to avoid
 		 * breaking kernel which assumes ->writepage should mark
-		 * PageWriteback or clean the page. */
+		 * PageWriteback or clean the page.
+		 */
 		result = cl_sync_file_range(inode, offset,
 					    offset + PAGE_CACHE_SIZE - 1,
 					    CL_FSYNC_LOCAL, 1);
 		if (result > 0) {
 			/* actually we may have written more than one page.
 			 * decreasing this page because the caller will count
-			 * it. */
+			 * it.
+			 */
 			wbc->nr_to_write -= result - 1;
 			result = 0;
 		}
@@ -1209,7 +1229,8 @@ int ll_writepages(struct address_space *mapping, struct writeback_control *wbc)
 	if (sbi->ll_umounting)
 		/* if the mountpoint is being umounted, all pages have to be
 		 * evicted to avoid hitting LBUG when truncate_inode_pages()
-		 * is called later on. */
+		 * is called later on.
+		 */
 		ignore_layout = 1;
 	result = cl_sync_file_range(inode, start, end, mode, ignore_layout);
 	if (result > 0) {
diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c
index 711fda9..b0f7ffa 100644
--- a/drivers/staging/lustre/lustre/llite/rw26.c
+++ b/drivers/staging/lustre/lustre/llite/rw26.c
@@ -92,9 +92,9 @@ static void ll_invalidatepage(struct page *vmpage, unsigned int offset,
 		if (!IS_ERR(env)) {
 			inode = vmpage->mapping->host;
 			obj = ll_i2info(inode)->lli_clob;
-			if (obj != NULL) {
+			if (obj) {
 				page = cl_vmpage_page(vmpage, obj);
-				if (page != NULL) {
+				if (page) {
 					lu_ref_add(&page->cp_reference,
 						   "delete", vmpage);
 					cl_page_delete(env, page);
@@ -128,11 +128,11 @@ static int ll_releasepage(struct page *vmpage, RELEASEPAGE_ARG_TYPE gfp_mask)
 		return 0;
 
 	mapping = vmpage->mapping;
-	if (mapping == NULL)
+	if (!mapping)
 		return 1;
 
 	obj = ll_i2info(mapping->host)->lli_clob;
-	if (obj == NULL)
+	if (!obj)
 		return 1;
 
 	/* 1 for page allocator, 1 for cl_page and 1 for page cache */
@@ -145,12 +145,13 @@ static int ll_releasepage(struct page *vmpage, RELEASEPAGE_ARG_TYPE gfp_mask)
 		/* If we can't allocate an env we won't call cl_page_put()
 		 * later on which further means it's impossible to drop
 		 * page refcount by cl_page, so ask kernel to not free
-		 * this page. */
+		 * this page.
+		 */
 		return 0;
 
 	page = cl_vmpage_page(vmpage, obj);
-	result = page == NULL;
-	if (page != NULL) {
+	result = !page;
+	if (page) {
 		if (!cl_page_in_use(page)) {
 			result = 1;
 			cl_page_delete(env, page);
@@ -212,7 +213,8 @@ static inline int ll_get_user_pages(int rw, unsigned long user_addr,
 }
 
 /*  ll_free_user_pages - tear down page struct array
- *  @pages: array of page struct pointers underlying target buffer */
+ *  @pages: array of page struct pointers underlying target buffer
+ */
 static void ll_free_user_pages(struct page **pages, int npages, int do_dirty)
 {
 	int i;
@@ -246,7 +248,7 @@ ssize_t ll_direct_rw_pages(const struct lu_env *env, struct cl_io *io,
 	cl_2queue_init(queue);
 	for (i = 0; i < page_count; i++) {
 		if (pv->ldp_offsets)
-		    file_offset = pv->ldp_offsets[i];
+			file_offset = pv->ldp_offsets[i];
 
 		LASSERT(!(file_offset & (page_size - 1)));
 		clp = cl_page_find(env, obj, cl_index(obj, file_offset),
@@ -266,7 +268,8 @@ ssize_t ll_direct_rw_pages(const struct lu_env *env, struct cl_io *io,
 		do_io = true;
 
 		/* check the page type: if the page is a host page, then do
-		 * write directly */
+		 * write directly
+		 */
 		if (clp->cp_type == CPT_CACHEABLE) {
 			struct page *vmpage = cl_page_vmpage(env, clp);
 			struct page *src_page;
@@ -284,14 +287,16 @@ ssize_t ll_direct_rw_pages(const struct lu_env *env, struct cl_io *io,
 			kunmap_atomic(src);
 
 			/* make sure page will be added to the transfer by
-			 * cl_io_submit()->...->vvp_page_prep_write(). */
+			 * cl_io_submit()->...->vvp_page_prep_write().
+			 */
 			if (rw == WRITE)
 				set_page_dirty(vmpage);
 
 			if (rw == READ) {
 				/* do not issue the page for read, since it
 				 * may reread a ra page which has NOT uptodate
-				 * bit set. */
+				 * bit set.
+				 */
 				cl_page_disown(env, io, clp);
 				do_io = false;
 			}
@@ -359,7 +364,8 @@ static ssize_t ll_direct_IO_26_seg(const struct lu_env *env, struct cl_io *io,
  * kmalloc limit.  We need to fit all of the brw_page structs, each one
  * representing PAGE_SIZE worth of user data, into a single buffer, and
  * then truncate this to be a full-sized RPC.  For 4kB PAGE_SIZE this is
- * up to 22MB for 128kB kmalloc and up to 682MB for 4MB kmalloc. */
+ * up to 22MB for 128kB kmalloc and up to 682MB for 4MB kmalloc.
+ */
 #define MAX_DIO_SIZE ((MAX_MALLOC / sizeof(struct brw_page) * PAGE_CACHE_SIZE) & \
 		      ~(DT_MAX_BRW_SIZE - 1))
 static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter,
@@ -396,7 +402,7 @@ static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter,
 	env = cl_env_get(&refcheck);
 	LASSERT(!IS_ERR(env));
 	io = ccc_env_io(env)->cui_cl.cis_io;
-	LASSERT(io != NULL);
+	LASSERT(io);
 
 	/* 0. Need locking between buffered and direct access. and race with
 	 *    size changing by concurrent truncates and writes.
@@ -433,7 +439,8 @@ static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter,
 			 * for the request, shrink it to a smaller
 			 * PAGE_SIZE multiple and try again.
 			 * We should always be able to kmalloc for a
-			 * page worth of page pointers = 4MB on i386. */
+			 * page worth of page pointers = 4MB on i386.
+			 */
 			if (result == -ENOMEM &&
 			    size > (PAGE_CACHE_SIZE / sizeof(*pages)) *
 				   PAGE_CACHE_SIZE) {
@@ -461,7 +468,7 @@ out:
 			struct lov_stripe_md *lsm;
 
 			lsm = ccc_inode_lsm_get(inode);
-			LASSERT(lsm != NULL);
+			LASSERT(lsm);
 			lov_stripe_lock(lsm);
 			obd_adjust_kms(ll_i2dtexp(inode), lsm, file_offset, 0);
 			lov_stripe_unlock(lsm);
diff --git a/drivers/staging/lustre/lustre/llite/statahead.c b/drivers/staging/lustre/lustre/llite/statahead.c
index 88ffd8e..d4a3722 100644
--- a/drivers/staging/lustre/lustre/llite/statahead.c
+++ b/drivers/staging/lustre/lustre/llite/statahead.c
@@ -49,13 +49,13 @@
 
 #define SA_OMITTED_ENTRY_MAX 8ULL
 
-typedef enum {
+enum se_stat {
 	/** negative values are for error cases */
 	SA_ENTRY_INIT = 0,      /** init entry */
 	SA_ENTRY_SUCC = 1,      /** stat succeed */
 	SA_ENTRY_INVA = 2,      /** invalid entry */
 	SA_ENTRY_DEST = 3,      /** entry to be destroyed */
-} se_stat_t;
+};
 
 struct ll_sa_entry {
 	/* link into sai->sai_entries */
@@ -71,7 +71,7 @@ struct ll_sa_entry {
 	/* low layer ldlm lock handle */
 	__u64		   se_handle;
 	/* entry status */
-	se_stat_t	       se_stat;
+	enum se_stat	   se_stat;
 	/* entry size, contains name */
 	int		     se_size;
 	/* pointer to async getattr enqueue info */
@@ -130,7 +130,7 @@ ll_sa_entry_unhash(struct ll_statahead_info *sai, struct ll_sa_entry *entry)
 static inline int agl_should_run(struct ll_statahead_info *sai,
 				 struct inode *inode)
 {
-	return (inode != NULL && S_ISREG(inode->i_mode) && sai->sai_agl_valid);
+	return (inode && S_ISREG(inode->i_mode) && sai->sai_agl_valid);
 }
 
 static inline int sa_sent_full(struct ll_statahead_info *sai)
@@ -366,7 +366,7 @@ ll_sa_entry_fini(struct ll_statahead_info *sai, struct ll_sa_entry *entry)
  */
 static void
 do_sa_entry_to_stated(struct ll_statahead_info *sai,
-		      struct ll_sa_entry *entry, se_stat_t stat)
+		      struct ll_sa_entry *entry, enum se_stat stat)
 {
 	struct ll_sa_entry *se;
 	struct list_head	 *pos = &sai->sai_entries_stated;
@@ -392,7 +392,7 @@ do_sa_entry_to_stated(struct ll_statahead_info *sai,
  */
 static int
 ll_sa_entry_to_stated(struct ll_statahead_info *sai,
-		      struct ll_sa_entry *entry, se_stat_t stat)
+		      struct ll_sa_entry *entry, enum se_stat stat)
 {
 	struct ll_inode_info *lli = ll_i2info(sai->sai_inode);
 	int		   ret = 1;
@@ -494,12 +494,13 @@ static void ll_sai_put(struct ll_statahead_info *sai)
 
 		if (unlikely(atomic_read(&sai->sai_refcount) > 0)) {
 			/* It is race case, the interpret callback just hold
-			 * a reference count */
+			 * a reference count
+			 */
 			spin_unlock(&lli->lli_sa_lock);
 			return;
 		}
 
-		LASSERT(lli->lli_opendir_key == NULL);
+		LASSERT(!lli->lli_opendir_key);
 		LASSERT(thread_is_stopped(&sai->sai_thread));
 		LASSERT(thread_is_stopped(&sai->sai_agl_thread));
 
@@ -618,20 +619,21 @@ static void ll_post_statahead(struct ll_statahead_info *sai)
 	it = &minfo->mi_it;
 	req = entry->se_req;
 	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL) {
+	if (!body) {
 		rc = -EFAULT;
 		goto out;
 	}
 
 	child = entry->se_inode;
-	if (child == NULL) {
+	if (!child) {
 		/*
 		 * lookup.
 		 */
 		LASSERT(fid_is_zero(&minfo->mi_data.op_fid2));
 
 		/* XXX: No fid in reply, this is probably cross-ref case.
-		 * SA can't handle it yet. */
+		 * SA can't handle it yet.
+		 */
 		if (body->valid & OBD_MD_MDS) {
 			rc = -EAGAIN;
 			goto out;
@@ -672,7 +674,8 @@ out:
 	/* The "ll_sa_entry_to_stated()" will drop related ldlm ibits lock
 	 * reference count by calling "ll_intent_drop_lock()" in spite of the
 	 * above operations failed or not. Do not worry about calling
-	 * "ll_intent_drop_lock()" more than once. */
+	 * "ll_intent_drop_lock()" more than once.
+	 */
 	rc = ll_sa_entry_to_stated(sai, entry,
 				   rc < 0 ? SA_ENTRY_INVA : SA_ENTRY_SUCC);
 	if (rc == 0 && entry->se_index == sai->sai_index_wait)
@@ -698,14 +701,15 @@ static int ll_statahead_interpret(struct ptlrpc_request *req,
 		/* release ibits lock ASAP to avoid deadlock when statahead
 		 * thread enqueues lock on parent in readdir and another
 		 * process enqueues lock on child with parent lock held, eg.
-		 * unlink. */
+		 * unlink.
+		 */
 		handle = it->d.lustre.it_lock_handle;
 		ll_intent_drop_lock(it);
 	}
 
 	spin_lock(&lli->lli_sa_lock);
 	/* stale entry */
-	if (unlikely(lli->lli_sai == NULL ||
+	if (unlikely(!lli->lli_sai ||
 		     lli->lli_sai->sai_generation != minfo->mi_generation)) {
 		spin_unlock(&lli->lli_sa_lock);
 		rc = -ESTALE;
@@ -720,7 +724,7 @@ static int ll_statahead_interpret(struct ptlrpc_request *req,
 		}
 
 		entry = ll_sa_entry_get_byindex(sai, minfo->mi_cbdata);
-		if (entry == NULL) {
+		if (!entry) {
 			sai->sai_replied++;
 			spin_unlock(&lli->lli_sa_lock);
 			rc = -EIDRM;
@@ -736,7 +740,8 @@ static int ll_statahead_interpret(struct ptlrpc_request *req,
 			/* Release the async ibits lock ASAP to avoid deadlock
 			 * when statahead thread tries to enqueue lock on parent
 			 * for readpage and other tries to enqueue lock on child
-			 * with parent's lock held, for example: unlink. */
+			 * with parent's lock held, for example: unlink.
+			 */
 			entry->se_handle = handle;
 			wakeup = list_empty(&sai->sai_entries_received);
 			list_add_tail(&entry->se_list,
@@ -756,7 +761,7 @@ out:
 		iput(dir);
 		kfree(minfo);
 	}
-	if (sai != NULL)
+	if (sai)
 		ll_sai_put(sai);
 	return rc;
 }
@@ -853,7 +858,7 @@ static int do_sa_revalidate(struct inode *dir, struct ll_sa_entry *entry,
 	struct ldlm_enqueue_info *einfo;
 	int rc;
 
-	if (unlikely(inode == NULL))
+	if (unlikely(!inode))
 		return 1;
 
 	if (d_mountpoint(dentry))
@@ -908,10 +913,9 @@ static void ll_statahead_one(struct dentry *parent, const char *entry_name,
 		rc = do_sa_revalidate(dir, entry, dentry);
 		if (rc == 1 && agl_should_run(sai, d_inode(dentry)))
 			ll_agl_add(sai, d_inode(dentry), entry->se_index);
-	}
 
-	if (dentry != NULL)
 		dput(dentry);
+	}
 
 	if (rc) {
 		rc1 = ll_sa_entry_to_stated(sai, entry,
@@ -948,7 +952,8 @@ static int ll_agl_thread(void *arg)
 	if (thread_is_init(thread))
 		/* If someone else has changed the thread state
 		 * (e.g. already changed to SVC_STOPPING), we can't just
-		 * blindly overwrite that setting. */
+		 * blindly overwrite that setting.
+		 */
 		thread_set_flags(thread, SVC_RUNNING);
 	spin_unlock(&plli->lli_agl_lock);
 	wake_up(&thread->t_ctl_waitq);
@@ -964,7 +969,8 @@ static int ll_agl_thread(void *arg)
 
 		spin_lock(&plli->lli_agl_lock);
 		/* The statahead thread maybe help to process AGL entries,
-		 * so check whether list empty again. */
+		 * so check whether list empty again.
+		 */
 		if (!list_empty(&sai->sai_entries_agl)) {
 			clli = list_entry(sai->sai_entries_agl.next,
 					  struct ll_inode_info, lli_agl_list);
@@ -1049,7 +1055,8 @@ static int ll_statahead_thread(void *arg)
 	if (thread_is_init(thread))
 		/* If someone else has changed the thread state
 		 * (e.g. already changed to SVC_STOPPING), we can't just
-		 * blindly overwrite that setting. */
+		 * blindly overwrite that setting.
+		 */
 		thread_set_flags(thread, SVC_RUNNING);
 	spin_unlock(&plli->lli_sa_lock);
 	wake_up(&thread->t_ctl_waitq);
@@ -1070,7 +1077,7 @@ static int ll_statahead_thread(void *arg)
 		}
 
 		dp = page_address(page);
-		for (ent = lu_dirent_start(dp); ent != NULL;
+		for (ent = lu_dirent_start(dp); ent;
 		     ent = lu_dirent_next(ent)) {
 			__u64 hash;
 			int namelen;
@@ -1137,7 +1144,8 @@ interpret_it:
 
 			/* If no window for metadata statahead, but there are
 			 * some AGL entries to be triggered, then try to help
-			 * to process the AGL entries. */
+			 * to process the AGL entries.
+			 */
 			if (sa_sent_full(sai)) {
 				spin_lock(&plli->lli_agl_lock);
 				while (!list_empty(&sai->sai_entries_agl)) {
@@ -1274,7 +1282,7 @@ void ll_stop_statahead(struct inode *dir, void *key)
 {
 	struct ll_inode_info *lli = ll_i2info(dir);
 
-	if (unlikely(key == NULL))
+	if (unlikely(!key))
 		return;
 
 	spin_lock(&lli->lli_sa_lock);
@@ -1357,7 +1365,7 @@ static int is_first_dirent(struct inode *dir, struct dentry *dentry)
 		}
 
 		dp = page_address(page);
-		for (ent = lu_dirent_start(dp); ent != NULL;
+		for (ent = lu_dirent_start(dp); ent;
 		     ent = lu_dirent_next(ent)) {
 			__u64 hash;
 			int namelen;
@@ -1365,7 +1373,8 @@ static int is_first_dirent(struct inode *dir, struct dentry *dentry)
 
 			hash = le64_to_cpu(ent->lde_hash);
 			/* The ll_get_dir_page() can return any page containing
-			 * the given hash which may be not the start hash. */
+			 * the given hash which may be not the start hash.
+			 */
 			if (unlikely(hash < pos))
 				continue;
 
@@ -1448,7 +1457,7 @@ ll_sai_unplug(struct ll_statahead_info *sai, struct ll_sa_entry *entry)
 	struct ll_sb_info    *sbi    = ll_i2sbi(sai->sai_inode);
 	int		   hit;
 
-	if (entry != NULL && entry->se_stat == SA_ENTRY_SUCC)
+	if (entry && entry->se_stat == SA_ENTRY_SUCC)
 		hit = 1;
 	else
 		hit = 0;
@@ -1498,6 +1507,7 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentryp,
 	struct ll_sa_entry       *entry;
 	struct ptlrpc_thread     *thread;
 	struct l_wait_info	lwi   = { 0 };
+	struct task_struct *task;
 	int		       rc    = 0;
 	struct ll_inode_info     *plli;
 
@@ -1540,7 +1550,7 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentryp,
 		}
 
 		entry = ll_sa_entry_get_byname(sai, &(*dentryp)->d_name);
-		if (entry == NULL || only_unplug) {
+		if (!entry || only_unplug) {
 			ll_sai_unplug(sai, entry);
 			return entry ? 1 : -EAGAIN;
 		}
@@ -1559,8 +1569,7 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentryp,
 			}
 		}
 
-		if (entry->se_stat == SA_ENTRY_SUCC &&
-		    entry->se_inode != NULL) {
+		if (entry->se_stat == SA_ENTRY_SUCC && entry->se_inode) {
 			struct inode *inode = entry->se_inode;
 			struct lookup_intent it = { .it_op = IT_GETATTR,
 						    .d.lustre.it_lock_handle =
@@ -1570,7 +1579,7 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentryp,
 			rc = md_revalidate_lock(ll_i2mdexp(dir), &it,
 						ll_inode2fid(inode), &bits);
 			if (rc == 1) {
-				if (d_inode(*dentryp) == NULL) {
+				if (!d_inode(*dentryp)) {
 					struct dentry *alias;
 
 					alias = ll_splice_alias(inode,
@@ -1616,14 +1625,14 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentryp,
 	}
 
 	sai = ll_sai_alloc();
-	if (sai == NULL) {
+	if (!sai) {
 		rc = -ENOMEM;
 		goto out;
 	}
 
 	sai->sai_ls_all = (rc == LS_FIRST_DOT_DE);
 	sai->sai_inode = igrab(dir);
-	if (unlikely(sai->sai_inode == NULL)) {
+	if (unlikely(!sai->sai_inode)) {
 		CWARN("Do not start stat ahead on dying inode "DFID"\n",
 		      PFID(&lli->lli_fid));
 		rc = -ESTALE;
@@ -1651,25 +1660,28 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentryp,
 	 * but as soon as we expose the sai by attaching it to the lli that
 	 * default reference can be dropped by another thread calling
 	 * ll_stop_statahead. We need to take a local reference to protect
-	 * the sai buffer while we intend to access it. */
+	 * the sai buffer while we intend to access it.
+	 */
 	ll_sai_get(sai);
 	lli->lli_sai = sai;
 
 	plli = ll_i2info(d_inode(parent));
-	rc = PTR_ERR(kthread_run(ll_statahead_thread, parent,
-				 "ll_sa_%u", plli->lli_opendir_pid));
+	task = kthread_run(ll_statahead_thread, parent, "ll_sa_%u",
+			   plli->lli_opendir_pid);
 	thread = &sai->sai_thread;
-	if (IS_ERR_VALUE(rc)) {
+	if (IS_ERR(task)) {
+		rc = PTR_ERR(task);
 		CERROR("can't start ll_sa thread, rc: %d\n", rc);
 		dput(parent);
 		lli->lli_opendir_key = NULL;
 		thread_set_flags(thread, SVC_STOPPED);
 		thread_set_flags(&sai->sai_agl_thread, SVC_STOPPED);
 		/* Drop both our own local reference and the default
-		 * reference from allocation time. */
+		 * reference from allocation time.
+		 */
 		ll_sai_put(sai);
 		ll_sai_put(sai);
-		LASSERT(lli->lli_sai == NULL);
+		LASSERT(!lli->lli_sai);
 		return -EAGAIN;
 	}
 
diff --git a/drivers/staging/lustre/lustre/llite/super25.c b/drivers/staging/lustre/lustre/llite/super25.c
index 86c371e..63f090a 100644
--- a/drivers/staging/lustre/lustre/llite/super25.c
+++ b/drivers/staging/lustre/lustre/llite/super25.c
@@ -54,7 +54,7 @@ static struct inode *ll_alloc_inode(struct super_block *sb)
 
 	ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_ALLOC_INODE, 1);
 	lli = kmem_cache_alloc(ll_inode_cachep, GFP_NOFS | __GFP_ZERO);
-	if (lli == NULL)
+	if (!lli)
 		return NULL;
 
 	inode_init_once(&lli->lli_vfs_inode);
@@ -99,7 +99,8 @@ static int __init init_lustre_lite(void)
 
 	/* print an address of _any_ initialized kernel symbol from this
 	 * module, to allow debugging with gdb that doesn't support data
-	 * symbols from modules.*/
+	 * symbols from modules.
+	 */
 	CDEBUG(D_INFO, "Lustre client module (%p).\n",
 	       &lustre_super_operations);
 
@@ -108,26 +109,26 @@ static int __init init_lustre_lite(void)
 					    sizeof(struct ll_inode_info),
 					    0, SLAB_HWCACHE_ALIGN|SLAB_ACCOUNT,
 					    NULL);
-	if (ll_inode_cachep == NULL)
+	if (!ll_inode_cachep)
 		goto out_cache;
 
 	ll_file_data_slab = kmem_cache_create("ll_file_data",
 						 sizeof(struct ll_file_data), 0,
 						 SLAB_HWCACHE_ALIGN, NULL);
-	if (ll_file_data_slab == NULL)
+	if (!ll_file_data_slab)
 		goto out_cache;
 
 	ll_remote_perm_cachep = kmem_cache_create("ll_remote_perm_cache",
 						  sizeof(struct ll_remote_perm),
 						      0, 0, NULL);
-	if (ll_remote_perm_cachep == NULL)
+	if (!ll_remote_perm_cachep)
 		goto out_cache;
 
 	ll_rmtperm_hash_cachep = kmem_cache_create("ll_rmtperm_hash_cache",
 						   REMOTE_PERM_HASHSIZE *
 						   sizeof(struct list_head),
 						   0, 0, NULL);
-	if (ll_rmtperm_hash_cachep == NULL)
+	if (!ll_rmtperm_hash_cachep)
 		goto out_cache;
 
 	llite_root = debugfs_create_dir("llite", debugfs_lustre_root);
@@ -146,7 +147,8 @@ static int __init init_lustre_lite(void)
 	cfs_get_random_bytes(seed, sizeof(seed));
 
 	/* Nodes with small feet have little entropy. The NID for this
-	 * node gives the most entropy in the low bits */
+	 * node gives the most entropy in the low bits
+	 */
 	for (i = 0;; i++) {
 		if (LNetGetId(i, &lnet_id) == -ENOENT)
 			break;
diff --git a/drivers/staging/lustre/lustre/llite/symlink.c b/drivers/staging/lustre/lustre/llite/symlink.c
index 2610348..4435a63 100644
--- a/drivers/staging/lustre/lustre/llite/symlink.c
+++ b/drivers/staging/lustre/lustre/llite/symlink.c
@@ -59,7 +59,8 @@ static int ll_readlink_internal(struct inode *inode,
 		*symname = lli->lli_symlink_name;
 		/* If the total CDEBUG() size is larger than a page, it
 		 * will print a warning to the console, avoid this by
-		 * printing just the last part of the symlink. */
+		 * printing just the last part of the symlink.
+		 */
 		CDEBUG(D_INODE, "using cached symlink %s%.*s, len = %d\n",
 		       print_limit < symlen ? "..." : "", print_limit,
 		       (*symname) + symlen - print_limit, symlen);
@@ -81,7 +82,6 @@ static int ll_readlink_internal(struct inode *inode,
 	}
 
 	body = req_capsule_server_get(&(*request)->rq_pill, &RMF_MDT_BODY);
-	LASSERT(body != NULL);
 	if ((body->valid & OBD_MD_LINKNAME) == 0) {
 		CERROR("OBD_MD_LINKNAME not set on reply\n");
 		rc = -EPROTO;
@@ -97,7 +97,7 @@ static int ll_readlink_internal(struct inode *inode,
 	}
 
 	*symname = req_capsule_server_get(&(*request)->rq_pill, &RMF_MDT_MD);
-	if (*symname == NULL ||
+	if (!*symname ||
 	    strnlen(*symname, symlen) != symlen - 1) {
 		/* not full/NULL terminated */
 		CERROR("inode %lu: symlink not NULL terminated string of length %d\n",
diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c
index fdca4ec..6075ccf 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_dev.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c
@@ -80,7 +80,7 @@ static void *vvp_key_init(const struct lu_context *ctx,
 	struct vvp_thread_info *info;
 
 	info = kmem_cache_alloc(vvp_thread_kmem, GFP_NOFS | __GFP_ZERO);
-	if (info == NULL)
+	if (!info)
 		info = ERR_PTR(-ENOMEM);
 	return info;
 }
@@ -99,7 +99,7 @@ static void *vvp_session_key_init(const struct lu_context *ctx,
 	struct vvp_session *session;
 
 	session = kmem_cache_alloc(vvp_session_kmem, GFP_NOFS | __GFP_ZERO);
-	if (session == NULL)
+	if (!session)
 		session = ERR_PTR(-ENOMEM);
 	return session;
 }
@@ -228,7 +228,7 @@ int cl_sb_fini(struct super_block *sb)
 	if (!IS_ERR(env)) {
 		cld = sbi->ll_cl;
 
-		if (cld != NULL) {
+		if (cld) {
 			cl_stack_fini(env, cld);
 			sbi->ll_cl = NULL;
 			sbi->ll_site = NULL;
@@ -325,11 +325,11 @@ static struct cl_object *vvp_pgcache_obj(const struct lu_env *env,
 
 	cfs_hash_hlist_for_each(dev->ld_site->ls_obj_hash, id->vpi_bucket,
 				vvp_pgcache_obj_get, id);
-	if (id->vpi_obj != NULL) {
+	if (id->vpi_obj) {
 		struct lu_object *lu_obj;
 
 		lu_obj = lu_object_locate(id->vpi_obj, dev->ld_type);
-		if (lu_obj != NULL) {
+		if (lu_obj) {
 			lu_object_ref_add(lu_obj, "dump", current);
 			return lu2cl(lu_obj);
 		}
@@ -355,7 +355,7 @@ static loff_t vvp_pgcache_find(const struct lu_env *env,
 		if (id.vpi_bucket >= CFS_HASH_NHLIST(site->ls_obj_hash))
 			return ~0ULL;
 		clob = vvp_pgcache_obj(env, dev, &id);
-		if (clob != NULL) {
+		if (clob) {
 			struct cl_object_header *hdr;
 			int		      nr;
 			struct cl_page	  *pg;
@@ -443,7 +443,7 @@ static int vvp_pgcache_show(struct seq_file *f, void *v)
 		vvp_pgcache_id_unpack(pos, &id);
 		sbi = f->private;
 		clob = vvp_pgcache_obj(env, &sbi->ll_cl->cd_lu_dev, &id);
-		if (clob != NULL) {
+		if (clob) {
 			hdr = cl_object_header(clob);
 
 			spin_lock(&hdr->coh_page_guard);
@@ -452,7 +452,7 @@ static int vvp_pgcache_show(struct seq_file *f, void *v)
 
 			seq_printf(f, "%8x@"DFID": ",
 				   id.vpi_index, PFID(&hdr->coh_lu.loh_fid));
-			if (page != NULL) {
+			if (page) {
 				vvp_pgcache_page_show(env, f, page);
 				cl_page_put(env, page);
 			} else
diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c
index 0920ac6..cca4b6c 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_io.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_io.c
@@ -78,7 +78,8 @@ static bool can_populate_pages(const struct lu_env *env, struct cl_io *io,
 	case CIT_READ:
 	case CIT_WRITE:
 		/* don't need lock here to check lli_layout_gen as we have held
-		 * extent lock and GROUP lock has to hold to swap layout */
+		 * extent lock and GROUP lock has to hold to swap layout
+		 */
 		if (ll_layout_version_get(lli) != cio->cui_layout_gen) {
 			io->ci_need_restart = 1;
 			/* this will return application a short read/write */
@@ -134,7 +135,8 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios)
 		 */
 		rc = ll_layout_restore(ccc_object_inode(obj));
 		/* if restore registration failed, no restart,
-		 * we will return -ENODATA */
+		 * we will return -ENODATA
+		 */
 		/* The layout will change after restore, so we need to
 		 * block on layout lock hold by the MDT
 		 * as MDT will not send new layout in lvb (see LU-3124)
@@ -164,8 +166,7 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios)
 			       DFID" layout changed from %d to %d.\n",
 			       PFID(lu_object_fid(&obj->co_lu)),
 			       cio->cui_layout_gen, gen);
-			/* today successful restore is the only possible
-			 * case */
+			/* today successful restore is the only possible case */
 			/* restore was done, clear restoring state */
 			ll_i2info(ccc_object_inode(obj))->lli_flags &=
 				~LLIF_FILE_RESTORING;
@@ -181,7 +182,7 @@ static void vvp_io_fault_fini(const struct lu_env *env,
 
 	CLOBINVRNT(env, io->ci_obj, ccc_object_invariant(io->ci_obj));
 
-	if (page != NULL) {
+	if (page) {
 		lu_ref_del(&page->cp_reference, "fault", io);
 		cl_page_put(env, page);
 		io->u.ci_fault.ft_page = NULL;
@@ -220,11 +221,11 @@ static int vvp_mmap_locks(const struct lu_env *env,
 	if (!cl_is_normalio(env, io))
 		return 0;
 
-	if (vio->cui_iter == NULL) /* nfs or loop back device write */
+	if (!vio->cui_iter) /* nfs or loop back device write */
 		return 0;
 
 	/* No MM (e.g. NFS)? No vmas too. */
-	if (mm == NULL)
+	if (!mm)
 		return 0;
 
 	iov_for_each(iov, i, *(vio->cui_iter)) {
@@ -456,7 +457,8 @@ static void vvp_io_setattr_end(const struct lu_env *env,
 
 	if (cl_io_is_trunc(io))
 		/* Truncate in memory pages - they must be clean pages
-		 * because osc has already notified to destroy osc_extents. */
+		 * because osc has already notified to destroy osc_extents.
+		 */
 		vvp_do_vmtruncate(inode, io->u.ci_setattr.sa_attr.lvb_size);
 
 	inode_unlock(inode);
@@ -529,7 +531,8 @@ static int vvp_io_read_start(const struct lu_env *env,
 				vio->u.splice.cui_flags);
 		/* LU-1109: do splice read stripe by stripe otherwise if it
 		 * may make nfsd stuck if this read occupied all internal pipe
-		 * buffers. */
+		 * buffers.
+		 */
 		io->ci_continue = 0;
 		break;
 	default:
@@ -587,7 +590,7 @@ static int vvp_io_write_start(const struct lu_env *env,
 
 	CDEBUG(D_VFSTRACE, "write: [%lli, %lli)\n", pos, pos + (long long)cnt);
 
-	if (cio->cui_iter == NULL) /* from a temp io in ll_cl_init(). */
+	if (!cio->cui_iter) /* from a temp io in ll_cl_init(). */
 		result = 0;
 	else
 		result = generic_file_write_iter(cio->cui_iocb, cio->cui_iter);
@@ -673,7 +676,7 @@ static int vvp_io_fault_start(const struct lu_env *env,
 
 	/* must return locked page */
 	if (fio->ft_mkwrite) {
-		LASSERT(cfio->ft_vmpage != NULL);
+		LASSERT(cfio->ft_vmpage);
 		lock_page(cfio->ft_vmpage);
 	} else {
 		result = vvp_io_kernel_fault(cfio);
@@ -689,13 +692,15 @@ static int vvp_io_fault_start(const struct lu_env *env,
 
 	size = i_size_read(inode);
 	/* Though we have already held a cl_lock upon this page, but
-	 * it still can be truncated locally. */
+	 * it still can be truncated locally.
+	 */
 	if (unlikely((vmpage->mapping != inode->i_mapping) ||
 		     (page_offset(vmpage) > size))) {
 		CDEBUG(D_PAGE, "llite: fault and truncate race happened!\n");
 
 		/* return +1 to stop cl_io_loop() and ll_fault() will catch
-		 * and retry. */
+		 * and retry.
+		 */
 		result = 1;
 		goto out;
 	}
@@ -736,7 +741,8 @@ static int vvp_io_fault_start(const struct lu_env *env,
 	}
 
 	/* if page is going to be written, we should add this page into cache
-	 * earlier. */
+	 * earlier.
+	 */
 	if (fio->ft_mkwrite) {
 		wait_on_page_writeback(vmpage);
 		if (set_page_dirty(vmpage)) {
@@ -750,7 +756,8 @@ static int vvp_io_fault_start(const struct lu_env *env,
 
 			/* Do not set Dirty bit here so that in case IO is
 			 * started before the page is really made dirty, we
-			 * still have chance to detect it. */
+			 * still have chance to detect it.
+			 */
 			result = cl_page_cache_add(env, io, page, CRT_WRITE);
 			LASSERT(cl_page_is_owned(page, io));
 
@@ -792,7 +799,7 @@ static int vvp_io_fault_start(const struct lu_env *env,
 
 out:
 	/* return unlocked vmpage to avoid deadlocking */
-	if (vmpage != NULL)
+	if (vmpage)
 		unlock_page(vmpage);
 	cfio->fault.ft_flags &= ~VM_FAULT_LOCKED;
 	return result;
@@ -803,7 +810,8 @@ static int vvp_io_fsync_start(const struct lu_env *env,
 {
 	/* we should mark TOWRITE bit to each dirty page in radix tree to
 	 * verify pages have been written, but this is difficult because of
-	 * race. */
+	 * race.
+	 */
 	return 0;
 }
 
@@ -1003,7 +1011,7 @@ static int vvp_io_commit_write(const struct lu_env *env,
 	 *
 	 *     (3) IO is batched up to the RPC size and is async until the
 	 *     client max cache is hit
-	 *     (/proc/fs/lustre/osc/OSC.../max_dirty_mb)
+	 *     (/sys/fs/lustre/osc/OSC.../max_dirty_mb)
 	 *
 	 */
 	if (!PageDirty(vmpage)) {
@@ -1153,7 +1161,8 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj,
 
 		count = io->u.ci_rw.crw_count;
 		/* "If nbyte is 0, read() will return 0 and have no other
-		 *  results."  -- Single Unix Spec */
+		 *  results."  -- Single Unix Spec
+		 */
 		if (count == 0)
 			result = 1;
 		else
@@ -1173,20 +1182,23 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj,
 
 	/* ignore layout change for generic CIT_MISC but not for glimpse.
 	 * io context for glimpse must set ci_verify_layout to true,
-	 * see cl_glimpse_size0() for details. */
+	 * see cl_glimpse_size0() for details.
+	 */
 	if (io->ci_type == CIT_MISC && !io->ci_verify_layout)
 		io->ci_ignore_layout = 1;
 
 	/* Enqueue layout lock and get layout version. We need to do this
 	 * even for operations requiring to open file, such as read and write,
-	 * because it might not grant layout lock in IT_OPEN. */
+	 * because it might not grant layout lock in IT_OPEN.
+	 */
 	if (result == 0 && !io->ci_ignore_layout) {
 		result = ll_layout_refresh(inode, &cio->cui_layout_gen);
 		if (result == -ENOENT)
 			/* If the inode on MDS has been removed, but the objects
 			 * on OSTs haven't been destroyed (async unlink), layout
 			 * fetch will return -ENOENT, we'd ignore this error
-			 * and continue with dirty flush. LU-3230. */
+			 * and continue with dirty flush. LU-3230.
+			 */
 			result = 0;
 		if (result < 0)
 			CERROR("%s: refresh file layout " DFID " error %d.\n",
diff --git a/drivers/staging/lustre/lustre/llite/vvp_object.c b/drivers/staging/lustre/lustre/llite/vvp_object.c
index c82714e..03c887d 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_object.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_object.c
@@ -137,7 +137,8 @@ static int vvp_conf_set(const struct lu_env *env, struct cl_object *obj,
 		 * page may be stale due to layout change, and the process
 		 * will never be notified.
 		 * This operation is expensive but mmap processes have to pay
-		 * a price themselves. */
+		 * a price themselves.
+		 */
 		unmap_mapping_range(conf->coc_inode->i_mapping,
 				    0, OBD_OBJECT_EOF, 0);
 
@@ -147,7 +148,7 @@ static int vvp_conf_set(const struct lu_env *env, struct cl_object *obj,
 	if (conf->coc_opc != OBJECT_CONF_SET)
 		return 0;
 
-	if (conf->u.coc_md != NULL && conf->u.coc_md->lsm != NULL) {
+	if (conf->u.coc_md && conf->u.coc_md->lsm) {
 		CDEBUG(D_VFSTRACE, DFID ": layout version change: %u -> %u\n",
 		       PFID(&lli->lli_fid), lli->lli_layout_gen,
 		       conf->u.coc_md->lsm->lsm_layout_gen);
@@ -186,9 +187,8 @@ struct ccc_object *cl_inode2ccc(struct inode *inode)
 	struct cl_object     *obj = lli->lli_clob;
 	struct lu_object     *lu;
 
-	LASSERT(obj != NULL);
 	lu = lu_object_locate(obj->co_lu.lo_header, &vvp_device_type);
-	LASSERT(lu != NULL);
+	LASSERT(lu);
 	return lu2ccc(lu);
 }
 
diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c
index a133475..f0b26e3 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_page.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_page.c
@@ -56,7 +56,7 @@ static void vvp_page_fini_common(struct ccc_page *cp)
 {
 	struct page *vmpage = cp->cpg_page;
 
-	LASSERT(vmpage != NULL);
+	LASSERT(vmpage);
 	page_cache_release(vmpage);
 }
 
@@ -81,7 +81,7 @@ static int vvp_page_own(const struct lu_env *env,
 	struct ccc_page *vpg    = cl2ccc_page(slice);
 	struct page      *vmpage = vpg->cpg_page;
 
-	LASSERT(vmpage != NULL);
+	LASSERT(vmpage);
 	if (nonblock) {
 		if (!trylock_page(vmpage))
 			return -EAGAIN;
@@ -105,7 +105,7 @@ static void vvp_page_assume(const struct lu_env *env,
 {
 	struct page *vmpage = cl2vm_page(slice);
 
-	LASSERT(vmpage != NULL);
+	LASSERT(vmpage);
 	LASSERT(PageLocked(vmpage));
 	wait_on_page_writeback(vmpage);
 }
@@ -116,7 +116,7 @@ static void vvp_page_unassume(const struct lu_env *env,
 {
 	struct page *vmpage = cl2vm_page(slice);
 
-	LASSERT(vmpage != NULL);
+	LASSERT(vmpage);
 	LASSERT(PageLocked(vmpage));
 }
 
@@ -125,7 +125,7 @@ static void vvp_page_disown(const struct lu_env *env,
 {
 	struct page *vmpage = cl2vm_page(slice);
 
-	LASSERT(vmpage != NULL);
+	LASSERT(vmpage);
 	LASSERT(PageLocked(vmpage));
 
 	unlock_page(cl2vm_page(slice));
@@ -139,7 +139,7 @@ static void vvp_page_discard(const struct lu_env *env,
 	struct address_space *mapping;
 	struct ccc_page      *cpg     = cl2ccc_page(slice);
 
-	LASSERT(vmpage != NULL);
+	LASSERT(vmpage);
 	LASSERT(PageLocked(vmpage));
 
 	mapping = vmpage->mapping;
@@ -161,7 +161,7 @@ static int vvp_page_unmap(const struct lu_env *env,
 	struct page *vmpage = cl2vm_page(slice);
 	__u64       offset;
 
-	LASSERT(vmpage != NULL);
+	LASSERT(vmpage);
 	LASSERT(PageLocked(vmpage));
 
 	offset = vmpage->index << PAGE_CACHE_SHIFT;
@@ -199,7 +199,7 @@ static void vvp_page_export(const struct lu_env *env,
 {
 	struct page *vmpage = cl2vm_page(slice);
 
-	LASSERT(vmpage != NULL);
+	LASSERT(vmpage);
 	LASSERT(PageLocked(vmpage));
 	if (uptodate)
 		SetPageUptodate(vmpage);
@@ -232,7 +232,8 @@ static int vvp_page_prep_write(const struct lu_env *env,
 	LASSERT(!PageDirty(vmpage));
 
 	/* ll_writepage path is not a sync write, so need to set page writeback
-	 * flag */
+	 * flag
+	 */
 	if (!pg->cp_sync_io)
 		set_page_writeback(vmpage);
 
@@ -290,7 +291,7 @@ static void vvp_page_completion_read(const struct lu_env *env,
 	} else
 		cp->cpg_defer_uptodate = 0;
 
-	if (page->cp_sync_io == NULL)
+	if (!page->cp_sync_io)
 		unlock_page(vmpage);
 }
 
@@ -317,7 +318,7 @@ static void vvp_page_completion_write(const struct lu_env *env,
 	cp->cpg_write_queued = 0;
 	vvp_write_complete(cl2ccc(slice->cpl_obj), cp);
 
-	if (pg->cp_sync_io != NULL) {
+	if (pg->cp_sync_io) {
 		LASSERT(PageLocked(vmpage));
 		LASSERT(!PageWriteback(vmpage));
 	} else {
@@ -356,15 +357,15 @@ static int vvp_page_make_ready(const struct lu_env *env,
 	lock_page(vmpage);
 	if (clear_page_dirty_for_io(vmpage)) {
 		LASSERT(pg->cp_state == CPS_CACHED);
-		/* This actually clears the dirty bit in the radix
-		 * tree. */
+		/* This actually clears the dirty bit in the radix tree. */
 		set_page_writeback(vmpage);
 		vvp_write_pending(cl2ccc(slice->cpl_obj),
 				cl2ccc_page(slice));
 		CL_PAGE_HEADER(D_PAGE, env, pg, "readied\n");
 	} else if (pg->cp_state == CPS_PAGEOUT) {
 		/* is it possible for osc_flush_async_page() to already
-		 * make it ready? */
+		 * make it ready?
+		 */
 		result = -EALREADY;
 	} else {
 		CL_PAGE_DEBUG(D_ERROR, env, pg, "Unexpecting page state %d.\n",
@@ -385,7 +386,7 @@ static int vvp_page_print(const struct lu_env *env,
 	(*printer)(env, cookie, LUSTRE_VVP_NAME "-page@%p(%d:%d:%d) vm@%p ",
 		   vp, vp->cpg_defer_uptodate, vp->cpg_ra_used,
 		   vp->cpg_write_queued, vmpage);
-	if (vmpage != NULL) {
+	if (vmpage) {
 		(*printer)(env, cookie, "%lx %d:%d %lx %lu %slru",
 			   (long)vmpage->flags, page_count(vmpage),
 			   page_mapcount(vmpage), vmpage->private,
diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c
index fa477e7..c34df37 100644
--- a/drivers/staging/lustre/lustre/llite/xattr.c
+++ b/drivers/staging/lustre/lustre/llite/xattr.c
@@ -148,7 +148,7 @@ int ll_setxattr_common(struct inode *inode, const char *name,
 	    (xattr_type == XATTR_ACL_ACCESS_T ||
 	    xattr_type == XATTR_ACL_DEFAULT_T)) {
 		rce = rct_search(&sbi->ll_rct, current_pid());
-		if (rce == NULL ||
+		if (!rce ||
 		    (rce->rce_ops != RMT_LSETFACL &&
 		    rce->rce_ops != RMT_RSETFACL))
 			return -EOPNOTSUPP;
@@ -158,7 +158,6 @@ int ll_setxattr_common(struct inode *inode, const char *name,
 
 			ee = et_search_del(&sbi->ll_et, current_pid(),
 					   ll_inode2fid(inode), xattr_type);
-			LASSERT(ee != NULL);
 			if (valid & OBD_MD_FLXATTR) {
 				acl = lustre_acl_xattr_merge2ext(
 						(posix_acl_xattr_header *)value,
@@ -196,7 +195,7 @@ int ll_setxattr_common(struct inode *inode, const char *name,
 	 * Release the posix ACL space.
 	 */
 	kfree(new_value);
-	if (acl != NULL)
+	if (acl)
 		lustre_ext_acl_xattr_free(acl);
 #endif
 	if (rc) {
@@ -238,11 +237,12 @@ int ll_setxattr(struct dentry *dentry, const char *name,
 
 		/* Attributes that are saved via getxattr will always have
 		 * the stripe_offset as 0.  Instead, the MDS should be
-		 * allowed to pick the starting OST index.   b=17846 */
-		if (lump != NULL && lump->lmm_stripe_offset == 0)
+		 * allowed to pick the starting OST index.   b=17846
+		 */
+		if (lump && lump->lmm_stripe_offset == 0)
 			lump->lmm_stripe_offset = -1;
 
-		if (lump != NULL && S_ISREG(inode->i_mode)) {
+		if (lump && S_ISREG(inode->i_mode)) {
 			int flags = FMODE_WRITE;
 			int lum_size = (lump->lmm_magic == LOV_USER_MAGIC_V1) ?
 				sizeof(*lump) : sizeof(struct lov_user_md_v3);
@@ -324,7 +324,7 @@ int ll_getxattr_common(struct inode *inode, const char *name,
 	    (xattr_type == XATTR_ACL_ACCESS_T ||
 	    xattr_type == XATTR_ACL_DEFAULT_T)) {
 		rce = rct_search(&sbi->ll_rct, current_pid());
-		if (rce == NULL ||
+		if (!rce ||
 		    (rce->rce_ops != RMT_LSETFACL &&
 		    rce->rce_ops != RMT_LGETFACL &&
 		    rce->rce_ops != RMT_RSETFACL &&
@@ -365,7 +365,7 @@ do_getxattr:
 			goto out_xattr;
 
 		/* Add "system.posix_acl_access" to the list */
-		if (lli->lli_posix_acl != NULL && valid & OBD_MD_FLXATTRLS) {
+		if (lli->lli_posix_acl && valid & OBD_MD_FLXATTRLS) {
 			if (size == 0) {
 				rc += sizeof(XATTR_NAME_ACL_ACCESS);
 			} else if (size - rc >= sizeof(XATTR_NAME_ACL_ACCESS)) {
@@ -481,13 +481,14 @@ ssize_t ll_getxattr(struct dentry *dentry, const char *name,
 
 		if (size == 0 && S_ISDIR(inode->i_mode)) {
 			/* XXX directory EA is fix for now, optimize to save
-			 * RPC transfer */
+			 * RPC transfer
+			 */
 			rc = sizeof(struct lov_user_md);
 			goto out;
 		}
 
 		lsm = ccc_inode_lsm_get(inode);
-		if (lsm == NULL) {
+		if (!lsm) {
 			if (S_ISDIR(inode->i_mode)) {
 				rc = ll_dir_getstripe(inode, &lmm,
 						      &lmmsize, &request);
@@ -496,7 +497,8 @@ ssize_t ll_getxattr(struct dentry *dentry, const char *name,
 			}
 		} else {
 			/* LSM is present already after lookup/getattr call.
-			 * we need to grab layout lock once it is implemented */
+			 * we need to grab layout lock once it is implemented
+			 */
 			rc = obd_packmd(ll_i2dtexp(inode), &lmm, lsm);
 			lmmsize = rc;
 		}
@@ -509,7 +511,8 @@ ssize_t ll_getxattr(struct dentry *dentry, const char *name,
 			/* used to call ll_get_max_mdsize() forward to get
 			 * the maximum buffer size, while some apps (such as
 			 * rsync 3.0.x) care much about the exact xattr value
-			 * size */
+			 * size
+			 */
 			rc = lmmsize;
 			goto out;
 		}
@@ -525,7 +528,8 @@ ssize_t ll_getxattr(struct dentry *dentry, const char *name,
 		memcpy(lump, lmm, lmmsize);
 		/* do not return layout gen for getxattr otherwise it would
 		 * confuse tar --xattr by recognizing layout gen as stripe
-		 * offset when the file is restored. See LU-2809. */
+		 * offset when the file is restored. See LU-2809.
+		 */
 		lump->lmm_layout_gen = 0;
 
 		rc = lmmsize;
@@ -559,7 +563,7 @@ ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size)
 	if (rc < 0)
 		goto out;
 
-	if (buffer != NULL) {
+	if (buffer) {
 		struct ll_sb_info *sbi = ll_i2sbi(inode);
 		char *xattr_name = buffer;
 		int xlen, rem = rc;
@@ -597,12 +601,12 @@ ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size)
 		const size_t name_len   = sizeof("lov") - 1;
 		const size_t total_len  = prefix_len + name_len + 1;
 
-		if (((rc + total_len) > size) && (buffer != NULL)) {
+		if (((rc + total_len) > size) && buffer) {
 			ptlrpc_req_finished(request);
 			return -ERANGE;
 		}
 
-		if (buffer != NULL) {
+		if (buffer) {
 			buffer += rc;
 			memcpy(buffer, XATTR_LUSTRE_PREFIX, prefix_len);
 			memcpy(buffer + prefix_len, "lov", name_len);
diff --git a/drivers/staging/lustre/lustre/llite/xattr_cache.c b/drivers/staging/lustre/lustre/llite/xattr_cache.c
index d140276..460b7c5 100644
--- a/drivers/staging/lustre/lustre/llite/xattr_cache.c
+++ b/drivers/staging/lustre/lustre/llite/xattr_cache.c
@@ -23,7 +23,8 @@
  */
 struct ll_xattr_entry {
 	struct list_head	xe_list;    /* protected with
-					     * lli_xattrs_list_rwsem */
+					     * lli_xattrs_list_rwsem
+					     */
 	char			*xe_name;   /* xattr name, \0-terminated */
 	char			*xe_value;  /* xattr value */
 	unsigned		xe_namelen; /* strlen(xe_name) + 1 */
@@ -59,9 +60,6 @@ void ll_xattr_fini(void)
  */
 static void ll_xattr_cache_init(struct ll_inode_info *lli)
 {
-
-	LASSERT(lli != NULL);
-
 	INIT_LIST_HEAD(&lli->lli_xattrs);
 	lli->lli_flags |= LLIF_XATTR_CACHE;
 }
@@ -83,8 +81,7 @@ static int ll_xattr_cache_find(struct list_head *cache,
 
 	list_for_each_entry(entry, cache, xe_list) {
 		/* xattr_name == NULL means look for any entry */
-		if (xattr_name == NULL ||
-		    strcmp(xattr_name, entry->xe_name) == 0) {
+		if (!xattr_name || strcmp(xattr_name, entry->xe_name) == 0) {
 			*xattr = entry;
 			CDEBUG(D_CACHE, "find: [%s]=%.*s\n",
 			       entry->xe_name, entry->xe_vallen,
@@ -118,7 +115,7 @@ static int ll_xattr_cache_add(struct list_head *cache,
 	}
 
 	xattr = kmem_cache_alloc(xattr_kmem, GFP_NOFS | __GFP_ZERO);
-	if (xattr == NULL) {
+	if (!xattr) {
 		CDEBUG(D_CACHE, "failed to allocate xattr\n");
 		return -ENOMEM;
 	}
@@ -270,7 +267,7 @@ static int ll_xattr_find_get_lock(struct inode *inode,
 				  struct lookup_intent *oit,
 				  struct ptlrpc_request **req)
 {
-	ldlm_mode_t mode;
+	enum ldlm_mode mode;
 	struct lustre_handle lockh = { 0 };
 	struct md_op_data *op_data;
 	struct ll_inode_info *lli = ll_i2info(inode);
@@ -284,7 +281,8 @@ static int ll_xattr_find_get_lock(struct inode *inode,
 
 	mutex_lock(&lli->lli_xattrs_enq_lock);
 	/* inode may have been shrunk and recreated, so data is gone, match lock
-	 * only when data exists. */
+	 * only when data exists.
+	 */
 	if (ll_xattr_cache_valid(lli)) {
 		/* Try matching first. */
 		mode = ll_take_md_lock(inode, MDS_INODELOCK_XATTR, &lockh, 0,
@@ -359,7 +357,7 @@ static int ll_xattr_cache_refill(struct inode *inode, struct lookup_intent *oit)
 	}
 
 	/* Matched but no cache? Cancelled on error by a parallel refill. */
-	if (unlikely(req == NULL)) {
+	if (unlikely(!req)) {
 		CDEBUG(D_CACHE, "cancelled by a parallel getxattr\n");
 		rc = -EIO;
 		goto out_maybe_drop;
@@ -376,7 +374,7 @@ static int ll_xattr_cache_refill(struct inode *inode, struct lookup_intent *oit)
 	}
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL) {
+	if (!body) {
 		CERROR("no MDT BODY in the refill xattr reply\n");
 		rc = -EPROTO;
 		goto out_destroy;
@@ -388,7 +386,7 @@ static int ll_xattr_cache_refill(struct inode *inode, struct lookup_intent *oit)
 						body->aclsize);
 	xsizes = req_capsule_server_sized_get(&req->rq_pill, &RMF_EAVALS_LENS,
 					      body->max_mdsize * sizeof(__u32));
-	if (xdata == NULL || xval == NULL || xsizes == NULL) {
+	if (!xdata || !xval || !xsizes) {
 		CERROR("wrong setxattr reply\n");
 		rc = -EPROTO;
 		goto out_destroy;
@@ -404,7 +402,7 @@ static int ll_xattr_cache_refill(struct inode *inode, struct lookup_intent *oit)
 	for (i = 0; i < body->max_mdsize; i++) {
 		CDEBUG(D_CACHE, "caching [%s]=%.*s\n", xdata, *xsizes, xval);
 		/* Perform consistency checks: attr names and vals in pill */
-		if (memchr(xdata, 0, xtail - xdata) == NULL) {
+		if (!memchr(xdata, 0, xtail - xdata)) {
 			CERROR("xattr protocol violation (names are broken)\n");
 			rc = -EPROTO;
 		} else if (xval + *xsizes > xvtail) {
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_fld.c b/drivers/staging/lustre/lustre/lmv/lmv_fld.c
index ee23592..378691b 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_fld.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_fld.c
@@ -58,7 +58,8 @@ int lmv_fld_lookup(struct lmv_obd *lmv,
 	int rc;
 
 	/* FIXME: Currently ZFS still use local seq for ROOT unfortunately, and
-	 * this fid_is_local check should be removed once LU-2240 is fixed */
+	 * this fid_is_local check should be removed once LU-2240 is fixed
+	 */
 	LASSERTF((fid_seq_in_fldb(fid_seq(fid)) ||
 		  fid_seq_is_local_file(fid_seq(fid))) &&
 		 fid_is_sane(fid), DFID" is insane!\n", PFID(fid));
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_intent.c b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
index 66de27f..259b211 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_intent.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
@@ -69,7 +69,7 @@ static int lmv_intent_remote(struct obd_export *exp, void *lmm,
 	int			rc = 0;
 
 	body = req_capsule_server_get(&(*reqp)->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL)
+	if (!body)
 		return -EPROTO;
 
 	LASSERT((body->valid & OBD_MD_MDS));
@@ -107,14 +107,16 @@ static int lmv_intent_remote(struct obd_export *exp, void *lmm,
 
 	op_data->op_fid1 = body->fid1;
 	/* Sent the parent FID to the remote MDT */
-	if (parent_fid != NULL) {
+	if (parent_fid) {
 		/* The parent fid is only for remote open to
 		 * check whether the open is from OBF,
-		 * see mdt_cross_open */
+		 * see mdt_cross_open
+		 */
 		LASSERT(it->it_op & IT_OPEN);
 		op_data->op_fid2 = *parent_fid;
 		/* Add object FID to op_fid3, in case it needs to check stale
-		 * (M_CHECK_STALE), see mdc_finish_intent_lock */
+		 * (M_CHECK_STALE), see mdc_finish_intent_lock
+		 */
 		op_data->op_fid3 = body->fid1;
 	}
 
@@ -173,7 +175,8 @@ static int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
 		return PTR_ERR(tgt);
 
 	/* If it is ready to open the file by FID, do not need
-	 * allocate FID at all, otherwise it will confuse MDT */
+	 * allocate FID at all, otherwise it will confuse MDT
+	 */
 	if ((it->it_op & IT_CREAT) &&
 	    !(it->it_flags & MDS_OPEN_BY_FID)) {
 		/*
@@ -204,7 +207,7 @@ static int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
 		return rc;
 
 	body = req_capsule_server_get(&(*reqp)->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL)
+	if (!body)
 		return -EPROTO;
 	/*
 	 * Not cross-ref case, just get out of here.
@@ -270,7 +273,7 @@ static int lmv_intent_lookup(struct obd_export *exp,
 	rc = md_intent_lock(tgt->ltd_exp, op_data, lmm, lmmsize, it,
 			     flags, reqp, cb_blocking, extra_lock_flags);
 
-	if (rc < 0 || *reqp == NULL)
+	if (rc < 0 || !*reqp)
 		return rc;
 
 	/*
@@ -278,7 +281,7 @@ static int lmv_intent_lookup(struct obd_export *exp,
 	 * remote inode. Let's check this.
 	 */
 	body = req_capsule_server_get(&(*reqp)->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL)
+	if (!body)
 		return -EPROTO;
 	/* Not cross-ref case, just get out of here. */
 	if (likely(!(body->valid & OBD_MD_MDS)))
@@ -299,7 +302,6 @@ int lmv_intent_lock(struct obd_export *exp, struct md_op_data *op_data,
 	struct obd_device *obd = exp->exp_obd;
 	int		rc;
 
-	LASSERT(it != NULL);
 	LASSERT(fid_is_sane(&op_data->op_fid1));
 
 	CDEBUG(D_INODE, "INTENT LOCK '%s' for '%*s' on "DFID"\n",
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_internal.h b/drivers/staging/lustre/lustre/lmv/lmv_internal.h
index eb8e673..041d30f33 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_internal.h
+++ b/drivers/staging/lustre/lustre/lmv/lmv_internal.h
@@ -66,7 +66,7 @@ static inline struct lmv_stripe_md *lmv_get_mea(struct ptlrpc_request *req)
 	struct mdt_body	 *body;
 	struct lmv_stripe_md    *mea;
 
-	LASSERT(req != NULL);
+	LASSERT(req);
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
 
@@ -75,8 +75,6 @@ static inline struct lmv_stripe_md *lmv_get_mea(struct ptlrpc_request *req)
 
 	mea = req_capsule_server_sized_get(&req->rq_pill, &RMF_MDT_MD,
 					   body->eadatasize);
-	LASSERT(mea != NULL);
-
 	if (mea->mea_count == 0)
 		return NULL;
 	if (mea->mea_magic != MEA_MAGIC_LAST_CHAR &&
@@ -101,7 +99,7 @@ lmv_get_target(struct lmv_obd *lmv, u32 mds)
 	int i;
 
 	for (i = 0; i < count; i++) {
-		if (lmv->tgts[i] == NULL)
+		if (!lmv->tgts[i])
 			continue;
 
 		if (lmv->tgts[i]->ltd_idx == mds)
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index 733222c..67746c9 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -88,7 +88,7 @@ static int lmv_set_mdc_active(struct lmv_obd *lmv, struct obd_uuid *uuid,
 	spin_lock(&lmv->lmv_lock);
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
 		tgt = lmv->tgts[i];
-		if (tgt == NULL || tgt->ltd_exp == NULL)
+		if (!tgt || !tgt->ltd_exp)
 			continue;
 
 		CDEBUG(D_INFO, "Target idx %d is %s conn %#llx\n", i,
@@ -104,7 +104,7 @@ static int lmv_set_mdc_active(struct lmv_obd *lmv, struct obd_uuid *uuid,
 	}
 
 	obd = class_exp2obd(tgt->ltd_exp);
-	if (obd == NULL) {
+	if (!obd) {
 		rc = -ENOTCONN;
 		goto out_lmv_lock;
 	}
@@ -262,7 +262,7 @@ static void lmv_set_timeouts(struct obd_device *obd)
 
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
 		tgt = lmv->tgts[i];
-		if (tgt == NULL || tgt->ltd_exp == NULL || tgt->ltd_active == 0)
+		if (!tgt || !tgt->ltd_exp || tgt->ltd_active == 0)
 			continue;
 
 		obd_set_info_async(NULL, tgt->ltd_exp, sizeof(KEY_INTERMDS),
@@ -302,8 +302,7 @@ static int lmv_init_ea_size(struct obd_export *exp, int easize,
 		return 0;
 
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL ||
-		    lmv->tgts[i]->ltd_exp == NULL ||
+		if (!lmv->tgts[i] || !lmv->tgts[i]->ltd_exp ||
 		    lmv->tgts[i]->ltd_active == 0) {
 			CWARN("%s: NULL export for %d\n", obd->obd_name, i);
 			continue;
@@ -410,7 +409,7 @@ static int lmv_connect_mdc(struct obd_device *obd, struct lmv_tgt_desc *tgt)
 
 static void lmv_del_target(struct lmv_obd *lmv, int index)
 {
-	if (lmv->tgts[index] == NULL)
+	if (!lmv->tgts[index])
 		return;
 
 	kfree(lmv->tgts[index]);
@@ -442,7 +441,7 @@ static int lmv_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
 		}
 	}
 
-	if ((index < lmv->tgts_size) && (lmv->tgts[index] != NULL)) {
+	if ((index < lmv->tgts_size) && lmv->tgts[index]) {
 		tgt = lmv->tgts[index];
 		CERROR("%s: UUID %s already assigned at LOV target index %d: rc = %d\n",
 		       obd->obd_name,
@@ -460,7 +459,7 @@ static int lmv_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
 		while (newsize < index + 1)
 			newsize <<= 1;
 		newtgts = kcalloc(newsize, sizeof(*newtgts), GFP_NOFS);
-		if (newtgts == NULL) {
+		if (!newtgts) {
 			lmv_init_unlock(lmv);
 			return -ENOMEM;
 		}
@@ -539,11 +538,9 @@ int lmv_check_connect(struct obd_device *obd)
 	CDEBUG(D_CONFIG, "Time to connect %s to %s\n",
 	       lmv->cluuid.uuid, obd->obd_name);
 
-	LASSERT(lmv->tgts != NULL);
-
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
 		tgt = lmv->tgts[i];
-		if (tgt == NULL)
+		if (!tgt)
 			continue;
 		rc = lmv_connect_mdc(obd, tgt);
 		if (rc)
@@ -563,7 +560,7 @@ int lmv_check_connect(struct obd_device *obd)
 		int rc2;
 
 		tgt = lmv->tgts[i];
-		if (tgt == NULL)
+		if (!tgt)
 			continue;
 		tgt->ltd_active = 0;
 		if (tgt->ltd_exp) {
@@ -586,9 +583,6 @@ static int lmv_disconnect_mdc(struct obd_device *obd, struct lmv_tgt_desc *tgt)
 	struct obd_device      *mdc_obd;
 	int		     rc;
 
-	LASSERT(tgt != NULL);
-	LASSERT(obd != NULL);
-
 	mdc_obd = class_exp2obd(tgt->ltd_exp);
 
 	if (mdc_obd) {
@@ -641,7 +635,7 @@ static int lmv_disconnect(struct obd_export *exp)
 		goto out_local;
 
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL)
+		if (!lmv->tgts[i] || !lmv->tgts[i]->ltd_exp)
 			continue;
 
 		lmv_disconnect_mdc(obd, lmv->tgts[i]);
@@ -685,8 +679,9 @@ repeat_fid2path:
 		goto out_fid2path;
 
 	/* If remote_gf != NULL, it means just building the
-	 * path on the remote MDT, copy this path segment to gf */
-	if (remote_gf != NULL) {
+	 * path on the remote MDT, copy this path segment to gf
+	 */
+	if (remote_gf) {
 		struct getinfo_fid2path *ori_gf;
 		char *ptr;
 
@@ -716,7 +711,7 @@ repeat_fid2path:
 		goto out_fid2path;
 
 	/* sigh, has to go to another MDT to do path building further */
-	if (remote_gf == NULL) {
+	if (!remote_gf) {
 		remote_gf_size = sizeof(*remote_gf) + PATH_MAX;
 		remote_gf = kzalloc(remote_gf_size, GFP_NOFS);
 		if (!remote_gf) {
@@ -803,7 +798,8 @@ static int lmv_hsm_ct_unregister(struct lmv_obd *lmv, unsigned int cmd, int len,
 	/* unregister request (call from llapi_hsm_copytool_fini) */
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
 		/* best effort: try to clean as much as possible
-		 * (continue on error) */
+		 * (continue on error)
+		 */
 		obd_iocontrol(cmd, lmv->tgts[i]->ltd_exp, len, lk, uarg);
 	}
 
@@ -827,7 +823,8 @@ static int lmv_hsm_ct_register(struct lmv_obd *lmv, unsigned int cmd, int len,
 
 	/* All or nothing: try to register to all MDS.
 	 * In case of failure, unregister from previous MDS,
-	 * except if it because of inactive target. */
+	 * except if it because of inactive target.
+	 */
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
 		err = obd_iocontrol(cmd, lmv->tgts[i]->ltd_exp,
 				   len, lk, uarg);
@@ -847,8 +844,8 @@ static int lmv_hsm_ct_register(struct lmv_obd *lmv, unsigned int cmd, int len,
 				return rc;
 			}
 			/* else: transient error.
-			 * kuc will register to the missing MDT
-			 * when it is back */
+			 * kuc will register to the missing MDT when it is back
+			 */
 		} else {
 			any_set = true;
 		}
@@ -901,8 +898,7 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
 		if (index >= count)
 			return -ENODEV;
 
-		if (lmv->tgts[index] == NULL ||
-		    lmv->tgts[index]->ltd_active == 0)
+		if (!lmv->tgts[index] || lmv->tgts[index]->ltd_active == 0)
 			return -ENODATA;
 
 		mdc_obd = class_exp2obd(lmv->tgts[index]->ltd_exp);
@@ -936,18 +932,18 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
 				return -EINVAL;
 
 			tgt = lmv->tgts[qctl->qc_idx];
-			if (tgt == NULL || tgt->ltd_exp == NULL)
+			if (!tgt || !tgt->ltd_exp)
 				return -EINVAL;
 		} else if (qctl->qc_valid == QC_UUID) {
 			for (i = 0; i < count; i++) {
 				tgt = lmv->tgts[i];
-				if (tgt == NULL)
+				if (!tgt)
 					continue;
 				if (!obd_uuid_equals(&tgt->ltd_uuid,
 						     &qctl->obd_uuid))
 					continue;
 
-				if (tgt->ltd_exp == NULL)
+				if (!tgt->ltd_exp)
 					return -EINVAL;
 
 				break;
@@ -981,8 +977,8 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
 		if (icc->icc_mdtindex >= count)
 			return -ENODEV;
 
-		if (lmv->tgts[icc->icc_mdtindex] == NULL ||
-		    lmv->tgts[icc->icc_mdtindex]->ltd_exp == NULL ||
+		if (!lmv->tgts[icc->icc_mdtindex] ||
+		    !lmv->tgts[icc->icc_mdtindex]->ltd_exp ||
 		    lmv->tgts[icc->icc_mdtindex]->ltd_active == 0)
 			return -ENODEV;
 		rc = obd_iocontrol(cmd, lmv->tgts[icc->icc_mdtindex]->ltd_exp,
@@ -990,7 +986,7 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
 		break;
 	}
 	case LL_IOC_GET_CONNECT_FLAGS: {
-		if (lmv->tgts[0] == NULL)
+		if (!lmv->tgts[0])
 			return -ENODATA;
 		rc = obd_iocontrol(cmd, lmv->tgts[0]->ltd_exp, len, karg, uarg);
 		break;
@@ -1007,10 +1003,10 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
 
 		tgt = lmv_find_target(lmv, &op_data->op_fid1);
 		if (IS_ERR(tgt))
-				return PTR_ERR(tgt);
+			return PTR_ERR(tgt);
 
-		if (tgt->ltd_exp == NULL)
-				return -EINVAL;
+		if (!tgt->ltd_exp)
+			return -EINVAL;
 
 		rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
 		break;
@@ -1035,7 +1031,8 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
 
 		/* if the request is about a single fid
 		 * or if there is a single MDS, no need to split
-		 * the request. */
+		 * the request.
+		 */
 		if (reqcount == 1 || count == 1) {
 			tgt = lmv_find_target(lmv,
 					      &hur->hur_user_item[0].hui_fid);
@@ -1058,7 +1055,7 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
 						  hur_user_item[nr])
 					 + hur->hur_request.hr_data_len;
 				req = libcfs_kvzalloc(reqlen, GFP_NOFS);
-				if (req == NULL)
+				if (!req)
 					return -ENOMEM;
 
 				lmv_hsm_req_build(lmv, hur, lmv->tgts[i], req);
@@ -1084,7 +1081,7 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
 		if (IS_ERR(tgt2))
 			return PTR_ERR(tgt2);
 
-		if ((tgt1->ltd_exp == NULL) || (tgt2->ltd_exp == NULL))
+		if (!tgt1->ltd_exp || !tgt2->ltd_exp)
 			return -EINVAL;
 
 		/* only files on same MDT can have their layouts swapped */
@@ -1108,11 +1105,11 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
 			struct obd_device *mdc_obd;
 			int err;
 
-			if (lmv->tgts[i] == NULL ||
-			    lmv->tgts[i]->ltd_exp == NULL)
+			if (!lmv->tgts[i] || !lmv->tgts[i]->ltd_exp)
 				continue;
 			/* ll_umount_begin() sets force flag but for lmv, not
-			 * mdc. Let's pass it through */
+			 * mdc. Let's pass it through
+			 */
 			mdc_obd = class_exp2obd(lmv->tgts[i]->ltd_exp);
 			mdc_obd->obd_force = obddev->obd_force;
 			err = obd_iocontrol(cmd, lmv->tgts[i]->ltd_exp, len,
@@ -1189,7 +1186,7 @@ static int lmv_placement_policy(struct obd_device *obd,
 {
 	struct lmv_obd	  *lmv = &obd->u.lmv;
 
-	LASSERT(mds != NULL);
+	LASSERT(mds);
 
 	if (lmv->desc.ld_tgt_count == 1) {
 		*mds = 0;
@@ -1219,7 +1216,8 @@ static int lmv_placement_policy(struct obd_device *obd,
 	}
 
 	/* Allocate new fid on target according to operation type and parent
-	 * home mds. */
+	 * home mds.
+	 */
 	*mds = op_data->op_mds;
 	return 0;
 }
@@ -1239,7 +1237,7 @@ int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid, u32 mds)
 	 */
 	mutex_lock(&tgt->ltd_fid_mutex);
 
-	if (tgt->ltd_active == 0 || tgt->ltd_exp == NULL) {
+	if (tgt->ltd_active == 0 || !tgt->ltd_exp) {
 		rc = -ENODEV;
 		goto out;
 	}
@@ -1266,8 +1264,8 @@ int lmv_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
 	u32		       mds = 0;
 	int		    rc;
 
-	LASSERT(op_data != NULL);
-	LASSERT(fid != NULL);
+	LASSERT(op_data);
+	LASSERT(fid);
 
 	rc = lmv_placement_policy(obd, op_data, &mds);
 	if (rc) {
@@ -1305,7 +1303,7 @@ static int lmv_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
 	}
 
 	lmv->tgts = kcalloc(32, sizeof(*lmv->tgts), GFP_NOFS);
-	if (lmv->tgts == NULL)
+	if (!lmv->tgts)
 		return -ENOMEM;
 	lmv->tgts_size = 32;
 
@@ -1346,11 +1344,11 @@ static int lmv_cleanup(struct obd_device *obd)
 	struct lmv_obd   *lmv = &obd->u.lmv;
 
 	fld_client_fini(&lmv->lmv_fld);
-	if (lmv->tgts != NULL) {
+	if (lmv->tgts) {
 		int i;
 
 		for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-			if (lmv->tgts[i] == NULL)
+			if (!lmv->tgts[i])
 				continue;
 			lmv_del_target(lmv, i);
 		}
@@ -1371,7 +1369,8 @@ static int lmv_process_config(struct obd_device *obd, u32 len, void *buf)
 	switch (lcfg->lcfg_command) {
 	case LCFG_ADD_MDC:
 		/* modify_mdc_tgts add 0:lustre-clilmv  1:lustre-MDT0000_UUID
-		 * 2:0  3:1  4:lustre-MDT0000-mdc_UUID */
+		 * 2:0  3:1  4:lustre-MDT0000-mdc_UUID
+		 */
 		if (LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(obd_uuid.uuid)) {
 			rc = -EINVAL;
 			goto out;
@@ -1416,7 +1415,7 @@ static int lmv_statfs(const struct lu_env *env, struct obd_export *exp,
 		return -ENOMEM;
 
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL)
+		if (!lmv->tgts[i] || !lmv->tgts[i]->ltd_exp)
 			continue;
 
 		rc = obd_statfs(env, lmv->tgts[i]->ltd_exp, temp,
@@ -1435,7 +1434,8 @@ static int lmv_statfs(const struct lu_env *env, struct obd_export *exp,
 			 * i.e. mount does not need the merged osfs
 			 * from all of MDT.
 			 * And also clients can be mounted as long as
-			 * MDT0 is in service*/
+			 * MDT0 is in service
+			 */
 			if (flags & OBD_STATFS_FOR_MDT0)
 				goto out_free_temp;
 		} else {
@@ -1561,7 +1561,7 @@ static int lmv_null_inode(struct obd_export *exp, const struct lu_fid *fid)
 	 * space of MDT storing inode.
 	 */
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL)
+		if (!lmv->tgts[i] || !lmv->tgts[i]->ltd_exp)
 			continue;
 		md_null_inode(lmv->tgts[i]->ltd_exp, fid);
 	}
@@ -1589,7 +1589,7 @@ static int lmv_find_cbdata(struct obd_export *exp, const struct lu_fid *fid,
 	 * space of MDT storing inode.
 	 */
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL)
+		if (!lmv->tgts[i] || !lmv->tgts[i]->ltd_exp)
 			continue;
 		rc = md_find_cbdata(lmv->tgts[i]->ltd_exp, fid, it, data);
 		if (rc)
@@ -1669,7 +1669,7 @@ static int lmv_create(struct obd_export *exp, struct md_op_data *op_data,
 		       cap_effective, rdev, request);
 
 	if (rc == 0) {
-		if (*request == NULL)
+		if (!*request)
 			return rc;
 		CDEBUG(D_INODE, "Created - "DFID"\n", PFID(&op_data->op_fid2));
 	}
@@ -1715,7 +1715,6 @@ lmv_enqueue_remote(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
 	int			 pmode;
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	LASSERT(body != NULL);
 
 	if (!(body->valid & OBD_MD_MDS))
 		return 0;
@@ -1822,7 +1821,6 @@ lmv_getattr_name(struct obd_export *exp, struct md_op_data *op_data,
 
 	body = req_capsule_server_get(&(*request)->rq_pill,
 				      &RMF_MDT_BODY);
-	LASSERT(body != NULL);
 
 	if (body->valid & OBD_MD_MDS) {
 		struct lu_fid rid = body->fid1;
@@ -1856,7 +1854,8 @@ lmv_getattr_name(struct obd_export *exp, struct md_op_data *op_data,
 	 NULL)
 
 static int lmv_early_cancel(struct obd_export *exp, struct md_op_data *op_data,
-			    int op_tgt, ldlm_mode_t mode, int bits, int flag)
+			    int op_tgt, enum ldlm_mode mode, int bits,
+			    int flag)
 {
 	struct lu_fid	  *fid = md_op_data_fid(op_data, flag);
 	struct obd_device      *obd = exp->exp_obd;
@@ -2111,7 +2110,7 @@ static void lmv_adjust_dirpages(struct page **pages, int ncfspgs, int nlupgs)
 
 		while (--nlupgs > 0) {
 			ent = lu_dirent_start(dp);
-			for (end_dirent = ent; ent != NULL;
+			for (end_dirent = ent; ent;
 			     end_dirent = ent, ent = lu_dirent_next(ent))
 				;
 
@@ -2131,7 +2130,8 @@ static void lmv_adjust_dirpages(struct page **pages, int ncfspgs, int nlupgs)
 				break;
 
 			/* Enlarge the end entry lde_reclen from 0 to
-			 * first entry of next lu_dirpage. */
+			 * first entry of next lu_dirpage.
+			 */
 			LASSERT(le16_to_cpu(end_dirent->lde_reclen) == 0);
 			end_dirent->lde_reclen =
 				cpu_to_le16((char *)(dp->ldp_entries) -
@@ -2241,7 +2241,7 @@ retry:
 		return rc;
 
 	body = req_capsule_server_get(&(*request)->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL)
+	if (!body)
 		return -EPROTO;
 
 	/* Not cross-ref case, just get out of here. */
@@ -2269,7 +2269,8 @@ retry:
 	 * 4. Then A will resend unlink RPC to MDT0. (retry 2nd times).
 	 *
 	 * In theory, it might try unlimited time here, but it should
-	 * be very rare case.  */
+	 * be very rare case.
+	 */
 	op_data->op_fid2 = body->fid1;
 	ptlrpc_req_finished(*request);
 	*request = NULL;
@@ -2284,7 +2285,8 @@ static int lmv_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
 	switch (stage) {
 	case OBD_CLEANUP_EARLY:
 		/* XXX: here should be calling obd_precleanup() down to
-		 * stack. */
+		 * stack.
+		 */
 		break;
 	case OBD_CLEANUP_EXPORTS:
 		fld_client_debugfs_fini(&lmv->lmv_fld);
@@ -2305,7 +2307,7 @@ static int lmv_get_info(const struct lu_env *env, struct obd_export *exp,
 	int		      rc = 0;
 
 	obd = class_exp2obd(exp);
-	if (obd == NULL) {
+	if (!obd) {
 		CDEBUG(D_IOCTL, "Invalid client cookie %#llx\n",
 		       exp->exp_handle.h_cookie);
 		return -EINVAL;
@@ -2326,7 +2328,7 @@ static int lmv_get_info(const struct lu_env *env, struct obd_export *exp,
 			/*
 			 * All tgts should be connected when this gets called.
 			 */
-			if (tgt == NULL || tgt->ltd_exp == NULL)
+			if (!tgt || !tgt->ltd_exp)
 				continue;
 
 			if (!obd_get_info(env, tgt->ltd_exp, keylen, key,
@@ -2369,7 +2371,7 @@ static int lmv_set_info_async(const struct lu_env *env, struct obd_export *exp,
 	int rc = 0;
 
 	obd = class_exp2obd(exp);
-	if (obd == NULL) {
+	if (!obd) {
 		CDEBUG(D_IOCTL, "Invalid client cookie %#llx\n",
 		       exp->exp_handle.h_cookie);
 		return -EINVAL;
@@ -2382,7 +2384,7 @@ static int lmv_set_info_async(const struct lu_env *env, struct obd_export *exp,
 		for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
 			tgt = lmv->tgts[i];
 
-			if (tgt == NULL || tgt->ltd_exp == NULL)
+			if (!tgt || !tgt->ltd_exp)
 				continue;
 
 			err = obd_set_info_async(env, tgt->ltd_exp,
@@ -2417,9 +2419,9 @@ static int lmv_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
 		return 0;
 	}
 
-	if (*lmmp == NULL) {
+	if (!*lmmp) {
 		*lmmp = libcfs_kvzalloc(mea_size, GFP_NOFS);
-		if (*lmmp == NULL)
+		if (!*lmmp)
 			return -ENOMEM;
 	}
 
@@ -2457,10 +2459,10 @@ static int lmv_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
 	__u32		       magic;
 
 	mea_size = lmv_get_easize(lmv);
-	if (lsmp == NULL)
+	if (!lsmp)
 		return mea_size;
 
-	if (*lsmp != NULL && lmm == NULL) {
+	if (*lsmp && !lmm) {
 		kvfree(*tmea);
 		*lsmp = NULL;
 		return 0;
@@ -2469,7 +2471,7 @@ static int lmv_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
 	LASSERT(mea_size == lmm_size);
 
 	*tmea = libcfs_kvzalloc(mea_size, GFP_NOFS);
-	if (*tmea == NULL)
+	if (!*tmea)
 		return -ENOMEM;
 
 	if (!lmm)
@@ -2499,8 +2501,8 @@ static int lmv_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
 }
 
 static int lmv_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
-			     ldlm_policy_data_t *policy, ldlm_mode_t mode,
-			     ldlm_cancel_flags_t flags, void *opaque)
+			     ldlm_policy_data_t *policy, enum ldlm_mode mode,
+			     enum ldlm_cancel_flags flags, void *opaque)
 {
 	struct obd_device       *obd = exp->exp_obd;
 	struct lmv_obd	  *lmv = &obd->u.lmv;
@@ -2508,10 +2510,10 @@ static int lmv_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
 	int		      err;
 	int		      i;
 
-	LASSERT(fid != NULL);
+	LASSERT(fid);
 
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL ||
+		if (!lmv->tgts[i] || !lmv->tgts[i]->ltd_exp ||
 		    lmv->tgts[i]->ltd_active == 0)
 			continue;
 
@@ -2533,14 +2535,16 @@ static int lmv_set_lock_data(struct obd_export *exp, __u64 *lockh, void *data,
 	return rc;
 }
 
-static ldlm_mode_t lmv_lock_match(struct obd_export *exp, __u64 flags,
-				  const struct lu_fid *fid, ldlm_type_t type,
-				  ldlm_policy_data_t *policy, ldlm_mode_t mode,
-				  struct lustre_handle *lockh)
+static enum ldlm_mode lmv_lock_match(struct obd_export *exp, __u64 flags,
+				     const struct lu_fid *fid,
+				     enum ldlm_type type,
+				     ldlm_policy_data_t *policy,
+				     enum ldlm_mode mode,
+				     struct lustre_handle *lockh)
 {
 	struct obd_device       *obd = exp->exp_obd;
 	struct lmv_obd	  *lmv = &obd->u.lmv;
-	ldlm_mode_t	      rc;
+	enum ldlm_mode	      rc;
 	int		      i;
 
 	CDEBUG(D_INODE, "Lock match for "DFID"\n", PFID(fid));
@@ -2552,8 +2556,7 @@ static ldlm_mode_t lmv_lock_match(struct obd_export *exp, __u64 flags,
 	 * one fid was created in.
 	 */
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL ||
-		    lmv->tgts[i]->ltd_exp == NULL ||
+		if (!lmv->tgts[i] || !lmv->tgts[i]->ltd_exp ||
 		    lmv->tgts[i]->ltd_active == 0)
 			continue;
 
@@ -2709,7 +2712,7 @@ static int lmv_quotactl(struct obd_device *unused, struct obd_export *exp,
 
 		tgt = lmv->tgts[i];
 
-		if (tgt == NULL || tgt->ltd_exp == NULL || tgt->ltd_active == 0)
+		if (!tgt || !tgt->ltd_exp || tgt->ltd_active == 0)
 			continue;
 		if (!tgt->ltd_active) {
 			CDEBUG(D_HA, "mdt %d is inactive.\n", i);
@@ -2744,7 +2747,7 @@ static int lmv_quotacheck(struct obd_device *unused, struct obd_export *exp,
 		int err;
 
 		tgt = lmv->tgts[i];
-		if (tgt == NULL || tgt->ltd_exp == NULL || !tgt->ltd_active) {
+		if (!tgt || !tgt->ltd_exp || !tgt->ltd_active) {
 			CERROR("lmv idx %d inactive\n", i);
 			return -EIO;
 		}
diff --git a/drivers/staging/lustre/lustre/lmv/lproc_lmv.c b/drivers/staging/lustre/lustre/lmv/lproc_lmv.c
index 40cf4d9..b39e364 100644
--- a/drivers/staging/lustre/lustre/lmv/lproc_lmv.c
+++ b/drivers/staging/lustre/lustre/lmv/lproc_lmv.c
@@ -138,7 +138,7 @@ static int lmv_desc_uuid_seq_show(struct seq_file *m, void *v)
 	struct obd_device *dev = (struct obd_device *)m->private;
 	struct lmv_obd	  *lmv;
 
-	LASSERT(dev != NULL);
+	LASSERT(dev);
 	lmv = &dev->u.lmv;
 	seq_printf(m, "%s\n", lmv->desc.ld_uuid.uuid);
 	return 0;
@@ -171,7 +171,7 @@ static int lmv_tgt_seq_show(struct seq_file *p, void *v)
 {
 	struct lmv_tgt_desc     *tgt = v;
 
-	if (tgt == NULL)
+	if (!tgt)
 		return 0;
 	seq_printf(p, "%d: %s %sACTIVE\n",
 		   tgt->ltd_idx, tgt->ltd_uuid.uuid,
diff --git a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
index 66a2492..b5fc159 100644
--- a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
+++ b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
@@ -651,7 +651,7 @@ static inline struct lov_session *lov_env_session(const struct lu_env *env)
 	struct lov_session *ses;
 
 	ses = lu_context_key_get(env->le_ses, &lov_session_key);
-	LASSERT(ses != NULL);
+	LASSERT(ses);
 	return ses;
 }
 
@@ -759,7 +759,7 @@ static inline struct lovsub_lock *cl2sub_lock(const struct cl_lock *lock)
 	const struct cl_lock_slice *slice;
 
 	slice = cl_lock_at(lock, &lovsub_device_type);
-	LASSERT(slice != NULL);
+	LASSERT(slice);
 	return cl2lovsub_lock(slice);
 }
 
@@ -817,7 +817,7 @@ static inline struct lov_thread_info *lov_env_info(const struct lu_env *env)
 	struct lov_thread_info *info;
 
 	info = lu_context_key_get(&env->le_ctx, &lov_key);
-	LASSERT(info != NULL);
+	LASSERT(info);
 	return info;
 }
 
diff --git a/drivers/staging/lustre/lustre/lov/lov_dev.c b/drivers/staging/lustre/lustre/lov/lov_dev.c
index 2c33cbc..ee093e0 100644
--- a/drivers/staging/lustre/lustre/lov/lov_dev.c
+++ b/drivers/staging/lustre/lustre/lov/lov_dev.c
@@ -143,7 +143,7 @@ static void *lov_key_init(const struct lu_context *ctx,
 	struct lov_thread_info *info;
 
 	info = kmem_cache_alloc(lov_thread_kmem, GFP_NOFS | __GFP_ZERO);
-	if (info != NULL)
+	if (info)
 		INIT_LIST_HEAD(&info->lti_closure.clc_list);
 	else
 		info = ERR_PTR(-ENOMEM);
@@ -171,7 +171,7 @@ static void *lov_session_key_init(const struct lu_context *ctx,
 	struct lov_session *info;
 
 	info = kmem_cache_alloc(lov_session_kmem, GFP_NOFS | __GFP_ZERO);
-	if (info == NULL)
+	if (!info)
 		info = ERR_PTR(-ENOMEM);
 	return info;
 }
@@ -199,15 +199,15 @@ static struct lu_device *lov_device_fini(const struct lu_env *env,
 	int i;
 	struct lov_device *ld = lu2lov_dev(d);
 
-	LASSERT(ld->ld_lov != NULL);
-	if (ld->ld_target == NULL)
+	LASSERT(ld->ld_lov);
+	if (!ld->ld_target)
 		return NULL;
 
 	lov_foreach_target(ld, i) {
 		struct lovsub_device *lsd;
 
 		lsd = ld->ld_target[i];
-		if (lsd != NULL) {
+		if (lsd) {
 			cl_stack_fini(env, lovsub2cl_dev(lsd));
 			ld->ld_target[i] = NULL;
 		}
@@ -222,8 +222,8 @@ static int lov_device_init(const struct lu_env *env, struct lu_device *d,
 	int i;
 	int rc = 0;
 
-	LASSERT(d->ld_site != NULL);
-	if (ld->ld_target == NULL)
+	LASSERT(d->ld_site);
+	if (!ld->ld_target)
 		return rc;
 
 	lov_foreach_target(ld, i) {
@@ -232,7 +232,7 @@ static int lov_device_init(const struct lu_env *env, struct lu_device *d,
 		struct lov_tgt_desc  *desc;
 
 		desc = ld->ld_lov->lov_tgts[i];
-		if (desc == NULL)
+		if (!desc)
 			continue;
 
 		cl = cl_type_setup(env, d->ld_site, &lovsub_device_type,
@@ -262,7 +262,7 @@ static int lov_req_init(const struct lu_env *env, struct cl_device *dev,
 	int result;
 
 	lr = kmem_cache_alloc(lov_req_kmem, GFP_NOFS | __GFP_ZERO);
-	if (lr != NULL) {
+	if (lr) {
 		cl_req_slice_add(req, &lr->lr_cl, dev, &lov_req_ops);
 		result = 0;
 	} else
@@ -282,9 +282,9 @@ static void lov_emerg_free(struct lov_device_emerg **emrg, int nr)
 		struct lov_device_emerg *em;
 
 		em = emrg[i];
-		if (em != NULL) {
+		if (em) {
 			LASSERT(em->emrg_page_list.pl_nr == 0);
-			if (em->emrg_env != NULL)
+			if (em->emrg_env)
 				cl_env_put(em->emrg_env, &em->emrg_refcheck);
 			kfree(em);
 		}
@@ -300,7 +300,7 @@ static struct lu_device *lov_device_free(const struct lu_env *env,
 
 	cl_device_fini(lu2cl_dev(d));
 	kfree(ld->ld_target);
-	if (ld->ld_emrg != NULL)
+	if (ld->ld_emrg)
 		lov_emerg_free(ld->ld_emrg, nr);
 	kfree(ld);
 	return NULL;
@@ -311,7 +311,7 @@ static void lov_cl_del_target(const struct lu_env *env, struct lu_device *dev,
 {
 	struct lov_device *ld = lu2lov_dev(dev);
 
-	if (ld->ld_target[index] != NULL) {
+	if (ld->ld_target[index]) {
 		cl_stack_fini(env, lovsub2cl_dev(ld->ld_target[index]));
 		ld->ld_target[index] = NULL;
 	}
@@ -324,13 +324,13 @@ static struct lov_device_emerg **lov_emerg_alloc(int nr)
 	int result;
 
 	emerg = kcalloc(nr, sizeof(emerg[0]), GFP_NOFS);
-	if (emerg == NULL)
+	if (!emerg)
 		return ERR_PTR(-ENOMEM);
 	for (result = i = 0; i < nr && result == 0; i++) {
 		struct lov_device_emerg *em;
 
 		em = kzalloc(sizeof(*em), GFP_NOFS);
-		if (em != NULL) {
+		if (em) {
 			emerg[i] = em;
 			cl_page_list_init(&em->emrg_page_list);
 			em->emrg_env = cl_env_alloc(&em->emrg_refcheck,
@@ -370,7 +370,7 @@ static int lov_expand_targets(const struct lu_env *env, struct lov_device *dev)
 			return PTR_ERR(emerg);
 
 		newd = kcalloc(tgt_size, sz, GFP_NOFS);
-		if (newd != NULL) {
+		if (newd) {
 			mutex_lock(&dev->ld_mutex);
 			if (sub_size > 0) {
 				memcpy(newd, dev->ld_target, sub_size * sz);
@@ -379,7 +379,7 @@ static int lov_expand_targets(const struct lu_env *env, struct lov_device *dev)
 			dev->ld_target    = newd;
 			dev->ld_target_nr = tgt_size;
 
-			if (dev->ld_emrg != NULL)
+			if (dev->ld_emrg)
 				lov_emerg_free(dev->ld_emrg, sub_size);
 			dev->ld_emrg = emerg;
 			mutex_unlock(&dev->ld_mutex);
@@ -404,8 +404,6 @@ static int lov_cl_add_target(const struct lu_env *env, struct lu_device *dev,
 	obd_getref(obd);
 
 	tgt = obd->u.lov.lov_tgts[index];
-	LASSERT(tgt != NULL);
-	LASSERT(tgt->ltd_obd != NULL);
 
 	if (!tgt->ltd_obd->obd_set_up) {
 		CERROR("Target %s not set up\n", obd_uuid2str(&tgt->ltd_uuid));
@@ -414,7 +412,7 @@ static int lov_cl_add_target(const struct lu_env *env, struct lu_device *dev,
 
 	rc = lov_expand_targets(env, ld);
 	if (rc == 0 && ld->ld_flags & LOV_DEV_INITIALIZED) {
-		LASSERT(dev->ld_site != NULL);
+		LASSERT(dev->ld_site);
 
 		cl = cl_type_setup(env, dev->ld_site, &lovsub_device_type,
 				   tgt->ltd_obd->obd_lu_dev);
@@ -492,7 +490,7 @@ static struct lu_device *lov_device_alloc(const struct lu_env *env,
 
 	/* setup the LOV OBD */
 	obd = class_name2obd(lustre_cfg_string(cfg, 0));
-	LASSERT(obd != NULL);
+	LASSERT(obd);
 	rc = lov_setup(obd, cfg);
 	if (rc) {
 		lov_device_free(env, d);
diff --git a/drivers/staging/lustre/lustre/lov/lov_ea.c b/drivers/staging/lustre/lustre/lov/lov_ea.c
index b3c9c85..c27b884 100644
--- a/drivers/staging/lustre/lustre/lov/lov_ea.c
+++ b/drivers/staging/lustre/lustre/lov/lov_ea.c
@@ -101,7 +101,7 @@ struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size)
 
 	for (i = 0; i < stripe_count; i++) {
 		loi = kmem_cache_alloc(lov_oinfo_slab, GFP_NOFS | __GFP_ZERO);
-		if (loi == NULL)
+		if (!loi)
 			goto err;
 		lsm->lsm_oinfo[i] = loi;
 	}
@@ -162,12 +162,13 @@ static int lsm_destroy_plain(struct lov_stripe_md *lsm, struct obdo *oa,
 }
 
 /* Find minimum stripe maxbytes value.  For inactive or
- * reconnecting targets use LUSTRE_STRIPE_MAXBYTES. */
+ * reconnecting targets use LUSTRE_STRIPE_MAXBYTES.
+ */
 static void lov_tgt_maxbytes(struct lov_tgt_desc *tgt, __u64 *stripe_maxbytes)
 {
 	struct obd_import *imp = tgt->ltd_obd->u.cli.cl_import;
 
-	if (imp == NULL || !tgt->ltd_active) {
+	if (!imp || !tgt->ltd_active) {
 		*stripe_maxbytes = LUSTRE_STRIPE_MAXBYTES;
 		return;
 	}
diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h
index f8e92fe..725ebf9 100644
--- a/drivers/staging/lustre/lustre/lov/lov_internal.h
+++ b/drivers/staging/lustre/lustre/lov/lov_internal.h
@@ -43,7 +43,8 @@
 /* lov_do_div64(a, b) returns a % b, and a = a / b.
  * The 32-bit code is LOV-specific due to knowing about stripe limits in
  * order to reduce the divisor to a 32-bit number.  If the divisor is
- * already a 32-bit value the compiler handles this directly. */
+ * already a 32-bit value the compiler handles this directly.
+ */
 #if BITS_PER_LONG == 64
 # define lov_do_div64(n, base) ({					\
 	uint64_t __base = (base);					\
@@ -92,7 +93,8 @@ struct lov_request_set {
 	atomic_t			set_refcount;
 	struct obd_export		*set_exp;
 	/* XXX: There is @set_exp already, however obd_statfs gets obd_device
-	   only. */
+	 * only.
+	 */
 	struct obd_device		*set_obd;
 	int				set_count;
 	atomic_t			set_completes;
@@ -114,7 +116,6 @@ void lov_finish_set(struct lov_request_set *set);
 
 static inline void lov_get_reqset(struct lov_request_set *set)
 {
-	LASSERT(set != NULL);
 	LASSERT(atomic_read(&set->set_refcount) > 0);
 	atomic_inc(&set->set_refcount);
 }
diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c
index 93fe69e..50954ce 100644
--- a/drivers/staging/lustre/lustre/lov/lov_io.c
+++ b/drivers/staging/lustre/lustre/lov/lov_io.c
@@ -60,7 +60,7 @@ static inline void lov_sub_exit(struct lov_io_sub *sub)
 static void lov_io_sub_fini(const struct lu_env *env, struct lov_io *lio,
 			    struct lov_io_sub *sub)
 {
-	if (sub->sub_io != NULL) {
+	if (sub->sub_io) {
 		if (sub->sub_io_initialized) {
 			lov_sub_enter(sub);
 			cl_io_fini(sub->sub_env, sub->sub_io);
@@ -74,7 +74,7 @@ static void lov_io_sub_fini(const struct lu_env *env, struct lov_io *lio,
 			kfree(sub->sub_io);
 		sub->sub_io = NULL;
 	}
-	if (sub->sub_env != NULL && !IS_ERR(sub->sub_env)) {
+	if (!IS_ERR_OR_NULL(sub->sub_env)) {
 		if (!sub->sub_borrowed)
 			cl_env_put(sub->sub_env, &sub->sub_refcheck);
 		sub->sub_env = NULL;
@@ -143,11 +143,11 @@ static int lov_io_sub_init(const struct lu_env *env, struct lov_io *lio,
 	int stripe = sub->sub_stripe;
 	int result;
 
-	LASSERT(sub->sub_io == NULL);
-	LASSERT(sub->sub_env == NULL);
+	LASSERT(!sub->sub_io);
+	LASSERT(!sub->sub_env);
 	LASSERT(sub->sub_stripe < lio->lis_stripe_count);
 
-	if (unlikely(lov_r0(lov)->lo_sub[stripe] == NULL))
+	if (unlikely(!lov_r0(lov)->lo_sub[stripe]))
 		return -EIO;
 
 	result = 0;
@@ -252,7 +252,6 @@ static int lov_page_stripe(const struct cl_page *page)
 	subobj = lu2lovsub(
 		lu_object_locate(page->cp_child->cp_obj->co_lu.lo_header,
 				 &lovsub_device_type));
-	LASSERT(subobj != NULL);
 	return subobj->lso_index;
 }
 
@@ -263,9 +262,9 @@ struct lov_io_sub *lov_page_subio(const struct lu_env *env, struct lov_io *lio,
 	struct cl_page       *page = slice->cpl_page;
 	int stripe;
 
-	LASSERT(lio->lis_cl.cis_io != NULL);
+	LASSERT(lio->lis_cl.cis_io);
 	LASSERT(cl2lov(slice->cpl_obj) == lio->lis_object);
-	LASSERT(lsm != NULL);
+	LASSERT(lsm);
 	LASSERT(lio->lis_nr_subios > 0);
 
 	stripe = lov_page_stripe(page);
@@ -278,7 +277,7 @@ static int lov_io_subio_init(const struct lu_env *env, struct lov_io *lio,
 	struct lov_stripe_md *lsm = lio->lis_object->lo_lsm;
 	int result;
 
-	LASSERT(lio->lis_object != NULL);
+	LASSERT(lio->lis_object);
 
 	/*
 	 * Need to be optimized, we can't afford to allocate a piece of memory
@@ -288,7 +287,7 @@ static int lov_io_subio_init(const struct lu_env *env, struct lov_io *lio,
 		libcfs_kvzalloc(lsm->lsm_stripe_count *
 				sizeof(lio->lis_subs[0]),
 				GFP_NOFS);
-	if (lio->lis_subs != NULL) {
+	if (lio->lis_subs) {
 		lio->lis_nr_subios = lio->lis_stripe_count;
 		lio->lis_single_subio_index = -1;
 		lio->lis_active_subios = 0;
@@ -304,7 +303,6 @@ static void lov_io_slice_init(struct lov_io *lio,
 	io->ci_result = 0;
 	lio->lis_object = obj;
 
-	LASSERT(obj->lo_lsm != NULL);
 	lio->lis_stripe_count = obj->lo_lsm->lsm_stripe_count;
 
 	switch (io->ci_type) {
@@ -358,7 +356,7 @@ static void lov_io_fini(const struct lu_env *env, const struct cl_io_slice *ios)
 	struct lov_object *lov = cl2lov(ios->cis_obj);
 	int i;
 
-	if (lio->lis_subs != NULL) {
+	if (lio->lis_subs) {
 		for (i = 0; i < lio->lis_nr_subios; i++)
 			lov_io_sub_fini(env, lio, &lio->lis_subs[i]);
 		kvfree(lio->lis_subs);
@@ -395,7 +393,7 @@ static int lov_io_iter_init(const struct lu_env *env,
 					   endpos, &start, &end))
 			continue;
 
-		if (unlikely(lov_r0(lio->lis_object)->lo_sub[stripe] == NULL)) {
+		if (unlikely(!lov_r0(lio->lis_object)->lo_sub[stripe])) {
 			if (ios->cis_io->ci_type == CIT_READ ||
 			    ios->cis_io->ci_type == CIT_WRITE ||
 			    ios->cis_io->ci_type == CIT_FAULT)
@@ -601,13 +599,13 @@ static int lov_io_submit(const struct lu_env *env,
 		return rc;
 	}
 
-	LASSERT(lio->lis_subs != NULL);
+	LASSERT(lio->lis_subs);
 	if (alloc) {
 		stripes_qin =
 			libcfs_kvzalloc(sizeof(*stripes_qin) *
 					lio->lis_nr_subios,
 					GFP_NOFS);
-		if (stripes_qin == NULL)
+		if (!stripes_qin)
 			return -ENOMEM;
 
 		for (stripe = 0; stripe < lio->lis_nr_subios; stripe++)
@@ -955,7 +953,7 @@ int lov_io_init_released(const struct lu_env *env, struct cl_object *obj,
 	struct lov_io *lio = lov_env_io(env);
 	int result;
 
-	LASSERT(lov->lo_lsm != NULL);
+	LASSERT(lov->lo_lsm);
 	lio->lis_object = lov;
 
 	switch (io->ci_type) {
diff --git a/drivers/staging/lustre/lustre/lov/lov_lock.c b/drivers/staging/lustre/lustre/lov/lov_lock.c
index d866791..e0a6438 100644
--- a/drivers/staging/lustre/lustre/lov/lov_lock.c
+++ b/drivers/staging/lustre/lustre/lov/lov_lock.c
@@ -115,7 +115,7 @@ static void lov_sublock_adopt(const struct lu_env *env, struct lov_lock *lck,
 	/*
 	 * check that sub-lock doesn't have lock link to this top-lock.
 	 */
-	LASSERT(lov_lock_link_find(env, lck, lsl) == NULL);
+	LASSERT(!lov_lock_link_find(env, lck, lsl));
 	LASSERT(idx < lck->lls_nr);
 
 	lck->lls_sub[idx].sub_lock = lsl;
@@ -145,7 +145,7 @@ static struct cl_lock *lov_sublock_alloc(const struct lu_env *env,
 	LASSERT(idx < lck->lls_nr);
 
 	link = kmem_cache_alloc(lov_lock_link_kmem, GFP_NOFS | __GFP_ZERO);
-	if (link != NULL) {
+	if (link) {
 		struct lov_sublock_env *subenv;
 		struct lov_lock_sub  *lls;
 		struct cl_lock_descr *descr;
@@ -160,7 +160,8 @@ static struct cl_lock *lov_sublock_alloc(const struct lu_env *env,
 			 * to remember the subio. This is because lock is able
 			 * to be cached, but this is not true for IO. This
 			 * further means a sublock might be referenced in
-			 * different io context. -jay */
+			 * different io context. -jay
+			 */
 
 			sublock = cl_lock_hold(subenv->lse_env, subenv->lse_io,
 					       descr, "lov-parent", parent);
@@ -220,7 +221,7 @@ static int lov_sublock_lock(const struct lu_env *env,
 			LASSERT(!(lls->sub_flags & LSF_HELD));
 
 			link = lov_lock_link_find(env, lck, sublock);
-			LASSERT(link != NULL);
+			LASSERT(link);
 			lov_lock_unlink(env, link, sublock);
 			lov_sublock_unlock(env, sublock, closure, NULL);
 			lck->lls_cancel_race = 1;
@@ -309,14 +310,14 @@ static int lov_lock_sub_init(const struct lu_env *env,
 		 * XXX for wide striping smarter algorithm is desirable,
 		 * breaking out of the loop, early.
 		 */
-		if (likely(r0->lo_sub[i] != NULL) &&
+		if (likely(r0->lo_sub[i]) &&
 		    lov_stripe_intersects(loo->lo_lsm, i,
 					  file_start, file_end, &start, &end))
 			nr++;
 	}
 	LASSERT(nr > 0);
 	lck->lls_sub = libcfs_kvzalloc(nr * sizeof(lck->lls_sub[0]), GFP_NOFS);
-	if (lck->lls_sub == NULL)
+	if (!lck->lls_sub)
 		return -ENOMEM;
 
 	lck->lls_nr = nr;
@@ -328,14 +329,14 @@ static int lov_lock_sub_init(const struct lu_env *env,
 	 * top-lock.
 	 */
 	for (i = 0, nr = 0; i < r0->lo_nr; ++i) {
-		if (likely(r0->lo_sub[i] != NULL) &&
+		if (likely(r0->lo_sub[i]) &&
 		    lov_stripe_intersects(loo->lo_lsm, i,
 					  file_start, file_end, &start, &end)) {
 			struct cl_lock_descr *descr;
 
 			descr = &lck->lls_sub[nr].sub_descr;
 
-			LASSERT(descr->cld_obj == NULL);
+			LASSERT(!descr->cld_obj);
 			descr->cld_obj   = lovsub2cl(r0->lo_sub[i]);
 			descr->cld_start = cl_index(descr->cld_obj, start);
 			descr->cld_end   = cl_index(descr->cld_obj, end);
@@ -369,7 +370,6 @@ static int lov_sublock_release(const struct lu_env *env, struct lov_lock *lck,
 		struct cl_lock    *sublock;
 		int dying;
 
-		LASSERT(lck->lls_sub[i].sub_lock != NULL);
 		sublock = lck->lls_sub[i].sub_lock->lss_cl.cls_lock;
 		LASSERT(cl_lock_is_mutexed(sublock));
 
@@ -413,7 +413,6 @@ static void lov_sublock_hold(const struct lu_env *env, struct lov_lock *lck,
 	if (!(lck->lls_sub[i].sub_flags & LSF_HELD)) {
 		struct cl_lock *sublock;
 
-		LASSERT(lck->lls_sub[i].sub_lock != NULL);
 		sublock = lck->lls_sub[i].sub_lock->lss_cl.cls_lock;
 		LASSERT(cl_lock_is_mutexed(sublock));
 		LASSERT(sublock->cll_state != CLS_FREEING);
@@ -435,13 +434,13 @@ static void lov_lock_fini(const struct lu_env *env,
 
 	lck = cl2lov_lock(slice);
 	LASSERT(lck->lls_nr_filled == 0);
-	if (lck->lls_sub != NULL) {
+	if (lck->lls_sub) {
 		for (i = 0; i < lck->lls_nr; ++i)
 			/*
 			 * No sub-locks exists at this point, as sub-lock has
 			 * a reference on its parent.
 			 */
-			LASSERT(lck->lls_sub[i].sub_lock == NULL);
+			LASSERT(!lck->lls_sub[i].sub_lock);
 		kvfree(lck->lls_sub);
 	}
 	kmem_cache_free(lov_lock_kmem, lck);
@@ -479,7 +478,8 @@ static int lov_lock_enqueue_one(const struct lu_env *env, struct lov_lock *lck,
 	result = cl_enqueue_try(env, sublock, io, enqflags);
 	if ((sublock->cll_state == CLS_ENQUEUED) && !(enqflags & CEF_AGL)) {
 		/* if it is enqueued, try to `wait' on it---maybe it's already
-		 * granted */
+		 * granted
+		 */
 		result = cl_wait_try(env, sublock);
 		if (result == CLO_REENQUEUED)
 			result = CLO_WAIT;
@@ -515,12 +515,13 @@ static int lov_sublock_fill(const struct lu_env *env, struct cl_lock *parent,
 	if (!IS_ERR(sublock)) {
 		cl_lock_get_trust(sublock);
 		if (parent->cll_state == CLS_QUEUING &&
-		    lck->lls_sub[idx].sub_lock == NULL) {
+		    !lck->lls_sub[idx].sub_lock) {
 			lov_sublock_adopt(env, lck, sublock, idx, link);
 		} else {
 			kmem_cache_free(lov_lock_link_kmem, link);
 			/* other thread allocated sub-lock, or enqueue is no
-			 * longer going on */
+			 * longer going on
+			 */
 			cl_lock_mutex_put(env, parent);
 			cl_lock_unhold(env, sublock, "lov-parent", parent);
 			cl_lock_mutex_get(env, parent);
@@ -574,10 +575,11 @@ static int lov_lock_enqueue(const struct lu_env *env,
 		 * Sub-lock might have been canceled, while top-lock was
 		 * cached.
 		 */
-		if (sub == NULL) {
+		if (!sub) {
 			result = lov_sublock_fill(env, lock, io, lck, i);
 			/* lov_sublock_fill() released @lock mutex,
-			 * restart. */
+			 * restart.
+			 */
 			break;
 		}
 		sublock = sub->lss_cl.cls_lock;
@@ -605,7 +607,8 @@ static int lov_lock_enqueue(const struct lu_env *env,
 					/* take recursive mutex of sublock */
 					cl_lock_mutex_get(env, sublock);
 					/* need to release all locks in closure
-					 * otherwise it may deadlock. LU-2683.*/
+					 * otherwise it may deadlock. LU-2683.
+					 */
 					lov_sublock_unlock(env, sub, closure,
 							   subenv);
 					/* sublock and parent are held. */
@@ -620,7 +623,7 @@ static int lov_lock_enqueue(const struct lu_env *env,
 					break;
 				}
 			} else {
-				LASSERT(sublock->cll_conflict == NULL);
+				LASSERT(!sublock->cll_conflict);
 				lov_sublock_unlock(env, sub, closure, subenv);
 			}
 		}
@@ -649,11 +652,12 @@ static int lov_lock_unuse(const struct lu_env *env,
 
 		/* top-lock state cannot change concurrently, because single
 		 * thread (one that released the last hold) carries unlocking
-		 * to the completion. */
+		 * to the completion.
+		 */
 		LASSERT(slice->cls_lock->cll_state == CLS_INTRANSIT);
 		lls = &lck->lls_sub[i];
 		sub = lls->sub_lock;
-		if (sub == NULL)
+		if (!sub)
 			continue;
 
 		sublock = sub->lss_cl.cls_lock;
@@ -695,10 +699,11 @@ static void lov_lock_cancel(const struct lu_env *env,
 
 		/* top-lock state cannot change concurrently, because single
 		 * thread (one that released the last hold) carries unlocking
-		 * to the completion. */
+		 * to the completion.
+		 */
 		lls = &lck->lls_sub[i];
 		sub = lls->sub_lock;
-		if (sub == NULL)
+		if (!sub)
 			continue;
 
 		sublock = sub->lss_cl.cls_lock;
@@ -757,7 +762,6 @@ again:
 
 		lls = &lck->lls_sub[i];
 		sub = lls->sub_lock;
-		LASSERT(sub != NULL);
 		sublock = sub->lss_cl.cls_lock;
 		rc = lov_sublock_lock(env, lck, lls, closure, &subenv);
 		if (rc == 0) {
@@ -776,8 +780,9 @@ again:
 		if (result != 0)
 			break;
 	}
-	/* Each sublock only can be reenqueued once, so will not loop for
-	 * ever. */
+	/* Each sublock only can be reenqueued once, so will not loop
+	 * forever.
+	 */
 	if (result == 0 && reenqueued != 0)
 		goto again;
 	cl_lock_closure_fini(closure);
@@ -805,7 +810,7 @@ static int lov_lock_use(const struct lu_env *env,
 
 		lls = &lck->lls_sub[i];
 		sub = lls->sub_lock;
-		if (sub == NULL) {
+		if (!sub) {
 			/*
 			 * Sub-lock might have been canceled, while top-lock was
 			 * cached.
@@ -826,7 +831,8 @@ static int lov_lock_use(const struct lu_env *env,
 								 i, 1, rc);
 			} else if (sublock->cll_state == CLS_NEW) {
 				/* Sub-lock might have been canceled, while
-				 * top-lock was cached. */
+				 * top-lock was cached.
+				 */
 				result = -ESTALE;
 				lov_sublock_release(env, lck, i, 1, result);
 			}
@@ -852,45 +858,6 @@ static int lov_lock_use(const struct lu_env *env,
 	return result;
 }
 
-#if 0
-static int lock_lock_multi_match()
-{
-	struct cl_lock	  *lock    = slice->cls_lock;
-	struct cl_lock_descr    *subneed = &lov_env_info(env)->lti_ldescr;
-	struct lov_object       *loo     = cl2lov(lov->lls_cl.cls_obj);
-	struct lov_layout_raid0 *r0      = lov_r0(loo);
-	struct lov_lock_sub     *sub;
-	struct cl_object	*subobj;
-	u64  fstart;
-	u64  fend;
-	u64  start;
-	u64  end;
-	int i;
-
-	fstart = cl_offset(need->cld_obj, need->cld_start);
-	fend   = cl_offset(need->cld_obj, need->cld_end + 1) - 1;
-	subneed->cld_mode = need->cld_mode;
-	cl_lock_mutex_get(env, lock);
-	for (i = 0; i < lov->lls_nr; ++i) {
-		sub = &lov->lls_sub[i];
-		if (sub->sub_lock == NULL)
-			continue;
-		subobj = sub->sub_descr.cld_obj;
-		if (!lov_stripe_intersects(loo->lo_lsm, sub->sub_stripe,
-					   fstart, fend, &start, &end))
-			continue;
-		subneed->cld_start = cl_index(subobj, start);
-		subneed->cld_end   = cl_index(subobj, end);
-		subneed->cld_obj   = subobj;
-		if (!cl_lock_ext_match(&sub->sub_got, subneed)) {
-			result = 0;
-			break;
-		}
-	}
-	cl_lock_mutex_put(env, lock);
-}
-#endif
-
 /**
  * Check if the extent region \a descr is covered by \a child against the
  * specific \a stripe.
@@ -922,10 +889,10 @@ static int lov_lock_stripe_is_matching(const struct lu_env *env,
 
 		idx = lov_stripe_number(lsm, start);
 		if (idx == stripe ||
-		    unlikely(lov_r0(lov)->lo_sub[idx] == NULL)) {
+		    unlikely(!lov_r0(lov)->lo_sub[idx])) {
 			idx = lov_stripe_number(lsm, end);
 			if (idx == stripe ||
-			    unlikely(lov_r0(lov)->lo_sub[idx] == NULL))
+			    unlikely(!lov_r0(lov)->lo_sub[idx]))
 				result = 1;
 		}
 	}
@@ -970,7 +937,8 @@ static int lov_lock_fits_into(const struct lu_env *env,
 	LASSERT(lov->lls_nr > 0);
 
 	/* for top lock, it's necessary to match enq flags otherwise it will
-	 * run into problem if a sublock is missing and reenqueue. */
+	 * run into problem if a sublock is missing and reenqueue.
+	 */
 	if (need->cld_enq_flags != lov->lls_orig.cld_enq_flags)
 		return 0;
 
@@ -1074,7 +1042,7 @@ static void lov_lock_delete(const struct lu_env *env,
 		struct lov_lock_sub *lls = &lck->lls_sub[i];
 		struct lovsub_lock  *lsl = lls->sub_lock;
 
-		if (lsl == NULL) /* already removed */
+		if (!lsl) /* already removed */
 			continue;
 
 		rc = lov_sublock_lock(env, lck, lls, closure, NULL);
@@ -1090,9 +1058,9 @@ static void lov_lock_delete(const struct lu_env *env,
 			lov_sublock_release(env, lck, i, 1, 0);
 
 		link = lov_lock_link_find(env, lck, lsl);
-		LASSERT(link != NULL);
+		LASSERT(link);
 		lov_lock_unlink(env, link, lsl);
-		LASSERT(lck->lls_sub[i].sub_lock == NULL);
+		LASSERT(!lck->lls_sub[i].sub_lock);
 
 		lov_sublock_unlock(env, lsl, closure, NULL);
 	}
@@ -1112,7 +1080,7 @@ static int lov_lock_print(const struct lu_env *env, void *cookie,
 
 		sub = &lck->lls_sub[i];
 		(*p)(env, cookie, "    %d %x: ", i, sub->sub_flags);
-		if (sub->sub_lock != NULL)
+		if (sub->sub_lock)
 			cl_lock_print(env, cookie, p,
 				      sub->sub_lock->lss_cl.cls_lock);
 		else
@@ -1140,7 +1108,7 @@ int lov_lock_init_raid0(const struct lu_env *env, struct cl_object *obj,
 	int result;
 
 	lck = kmem_cache_alloc(lov_lock_kmem, GFP_NOFS | __GFP_ZERO);
-	if (lck != NULL) {
+	if (lck) {
 		cl_lock_slice_add(lock, &lck->lls_cl, obj, &lov_lock_ops);
 		result = lov_lock_sub_init(env, lck, io);
 	} else
@@ -1176,7 +1144,7 @@ int lov_lock_init_empty(const struct lu_env *env, struct cl_object *obj,
 	int result = -ENOMEM;
 
 	lck = kmem_cache_alloc(lov_lock_kmem, GFP_NOFS | __GFP_ZERO);
-	if (lck != NULL) {
+	if (lck) {
 		cl_lock_slice_add(lock, &lck->lls_cl, obj, &lov_empty_lock_ops);
 		lck->lls_orig = lock->cll_descr;
 		result = 0;
diff --git a/drivers/staging/lustre/lustre/lov/lov_merge.c b/drivers/staging/lustre/lustre/lov/lov_merge.c
index 97115be..029cd4d 100644
--- a/drivers/staging/lustre/lustre/lov/lov_merge.c
+++ b/drivers/staging/lustre/lustre/lov/lov_merge.c
@@ -129,7 +129,8 @@ int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
 			       "stripe %d KMS %sing %llu->%llu\n",
 			       stripe, kms > loi->loi_kms ? "increase":"shrink",
 			       loi->loi_kms, kms);
-			loi_kms_set(loi, loi->loi_lvb.lvb_size = kms);
+			loi->loi_lvb.lvb_size = kms;
+			loi_kms_set(loi, loi->loi_lvb.lvb_size);
 		}
 		return 0;
 	}
diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index 65077b7..7ba670a 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -61,7 +61,8 @@
 #include "lov_internal.h"
 
 /* Keep a refcount of lov->tgt usage to prevent racing with addition/deletion.
-   Any function that expects lov_tgts to remain stationary must take a ref. */
+ * Any function that expects lov_tgts to remain stationary must take a ref.
+ */
 static void lov_getref(struct obd_device *obd)
 {
 	struct lov_obd *lov = &obd->u.lov;
@@ -96,7 +97,8 @@ static void lov_putref(struct obd_device *obd)
 			list_add(&tgt->ltd_kill, &kill);
 			/* XXX - right now there is a dependency on ld_tgt_count
 			 * being the maximum tgt index for computing the
-			 * mds_max_easize. So we can't shrink it. */
+			 * mds_max_easize. So we can't shrink it.
+			 */
 			lov_ost_pool_remove(&lov->lov_packed, i);
 			lov->lov_tgts[i] = NULL;
 			lov->lov_death_row--;
@@ -158,7 +160,8 @@ int lov_connect_obd(struct obd_device *obd, __u32 index, int activate,
 	if (activate) {
 		tgt_obd->obd_no_recov = 0;
 		/* FIXME this is probably supposed to be
-		   ptlrpc_set_import_active.  Horrible naming. */
+		 * ptlrpc_set_import_active.  Horrible naming.
+		 */
 		ptlrpc_activate_import(imp);
 	}
 
@@ -315,7 +318,8 @@ static int lov_disconnect(struct obd_export *exp)
 	}
 
 	/* Let's hold another reference so lov_del_obd doesn't spin through
-	   putref every time */
+	 * putref every time
+	 */
 	obd_getref(obd);
 
 	for (i = 0; i < lov->desc.ld_tgt_count; i++) {
@@ -358,7 +362,7 @@ static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid,
 		 * LU-642, initially inactive OSC could miss the obd_connect,
 		 * we make up for it here.
 		 */
-		if (ev == OBD_NOTIFY_ACTIVATE && tgt->ltd_exp == NULL &&
+		if (ev == OBD_NOTIFY_ACTIVATE && !tgt->ltd_exp &&
 		    obd_uuid_equals(uuid, &tgt->ltd_uuid)) {
 			struct obd_uuid lov_osc_uuid = {"LOV_OSC_UUID"};
 
@@ -399,10 +403,9 @@ static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid,
 			CDEBUG(D_INFO, "OSC %s already %sactive!\n",
 			       uuid->uuid, active ? "" : "in");
 			goto out;
-		} else {
-			CDEBUG(D_CONFIG, "Marking OSC %s %sactive\n",
-			       obd_uuid2str(uuid), active ? "" : "in");
 		}
+		CDEBUG(D_CONFIG, "Marking OSC %s %sactive\n",
+		       obd_uuid2str(uuid), active ? "" : "in");
 
 		lov->lov_tgts[index]->ltd_active = active;
 		if (active) {
@@ -481,7 +484,8 @@ static int lov_notify(struct obd_device *obd, struct obd_device *watched,
 				continue;
 
 			/* don't send sync event if target not
-			 * connected/activated */
+			 * connected/activated
+			 */
 			if (is_sync &&  !lov->lov_tgts[i]->ltd_active)
 				continue;
 
@@ -521,12 +525,12 @@ static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
 
 	tgt_obd = class_find_client_obd(uuidp, LUSTRE_OSC_NAME,
 					&obd->obd_uuid);
-	if (tgt_obd == NULL)
+	if (!tgt_obd)
 		return -EINVAL;
 
 	mutex_lock(&lov->lov_lock);
 
-	if ((index < lov->lov_tgt_size) && (lov->lov_tgts[index] != NULL)) {
+	if ((index < lov->lov_tgt_size) && lov->lov_tgts[index]) {
 		tgt = lov->lov_tgts[index];
 		CERROR("UUID %s already assigned at LOV target index %d\n",
 		       obd_uuid2str(&tgt->ltd_uuid), index);
@@ -543,7 +547,7 @@ static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
 		while (newsize < index + 1)
 			newsize <<= 1;
 		newtgts = kcalloc(newsize, sizeof(*newtgts), GFP_NOFS);
-		if (newtgts == NULL) {
+		if (!newtgts) {
 			mutex_unlock(&lov->lov_lock);
 			return -ENOMEM;
 		}
@@ -596,8 +600,9 @@ static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
 
 	if (lov->lov_connects == 0) {
 		/* lov_connect hasn't been called yet. We'll do the
-		   lov_connect_obd on this target when that fn first runs,
-		   because we don't know the connect flags yet. */
+		 * lov_connect_obd on this target when that fn first runs,
+		 * because we don't know the connect flags yet.
+		 */
 		return 0;
 	}
 
@@ -613,7 +618,7 @@ static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
 		goto out;
 	}
 
-	if (lov->lov_cache != NULL) {
+	if (lov->lov_cache) {
 		rc = obd_set_info_async(NULL, tgt->ltd_exp,
 				sizeof(KEY_CACHE_SET), KEY_CACHE_SET,
 				sizeof(struct cl_client_cache), lov->lov_cache,
@@ -702,8 +707,9 @@ static void __lov_del_obd(struct obd_device *obd, struct lov_tgt_desc *tgt)
 	kfree(tgt);
 
 	/* Manual cleanup - no cleanup logs to clean up the osc's.  We must
-	   do it ourselves. And we can't do it from lov_cleanup,
-	   because we just lost our only reference to it. */
+	 * do it ourselves. And we can't do it from lov_cleanup,
+	 * because we just lost our only reference to it.
+	 */
 	if (osc_obd)
 		class_manual_cleanup(osc_obd);
 }
@@ -773,9 +779,9 @@ int lov_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
 
 	if (desc->ld_magic != LOV_DESC_MAGIC) {
 		if (desc->ld_magic == __swab32(LOV_DESC_MAGIC)) {
-			    CDEBUG(D_OTHER, "%s: Swabbing lov desc %p\n",
-				   obd->obd_name, desc);
-			    lustre_swab_lov_desc(desc);
+			CDEBUG(D_OTHER, "%s: Swabbing lov desc %p\n",
+			       obd->obd_name, desc);
+			lustre_swab_lov_desc(desc);
 		} else {
 			CERROR("%s: Bad lov desc magic: %#x\n",
 			       obd->obd_name, desc->ld_magic);
@@ -859,7 +865,8 @@ static int lov_cleanup(struct obd_device *obd)
 		/* free pool structs */
 		CDEBUG(D_INFO, "delete pool %p\n", pool);
 		/* In the function below, .hs_keycmp resolves to
-		 * pool_hashkey_keycmp() */
+		 * pool_hashkey_keycmp()
+		 */
 		/* coverity[overrun-buffer-val] */
 		lov_pool_del(obd, pool->pool_name);
 	}
@@ -879,8 +886,9 @@ static int lov_cleanup(struct obd_device *obd)
 			if (lov->lov_tgts[i]->ltd_active ||
 			    atomic_read(&lov->lov_refcount))
 			    /* We should never get here - these
-			       should have been removed in the
-			     disconnect. */
+			     * should have been removed in the
+			     * disconnect.
+			     */
 				CERROR("lov tgt %d not cleaned! deathrow=%d, lovrc=%d\n",
 				       i, lov->lov_death_row,
 				       atomic_read(&lov->lov_refcount));
@@ -981,7 +989,7 @@ static int lov_recreate(struct obd_export *exp, struct obdo *src_oa,
 
 	ost_idx = src_oa->o_nlink;
 	lsm = *ea;
-	if (lsm == NULL) {
+	if (!lsm) {
 		rc = -EINVAL;
 		goto out;
 	}
@@ -1025,8 +1033,8 @@ static int lov_create(const struct lu_env *env, struct obd_export *exp,
 	struct lov_obd *lov;
 	int rc = 0;
 
-	LASSERT(ea != NULL);
-	if (exp == NULL)
+	LASSERT(ea);
+	if (!exp)
 		return -EINVAL;
 
 	if ((src_oa->o_valid & OBD_MD_FLFLAGS) &&
@@ -1043,7 +1051,7 @@ static int lov_create(const struct lu_env *env, struct obd_export *exp,
 	/* Recreate a specific object id at the given OST index */
 	if ((src_oa->o_valid & OBD_MD_FLFLAGS) &&
 	    (src_oa->o_flags & OBD_FL_RECREATE_OBJS)) {
-		 rc = lov_recreate(exp, src_oa, ea, oti);
+		rc = lov_recreate(exp, src_oa, ea, oti);
 	}
 
 	obd_putref(exp->exp_obd);
@@ -1052,7 +1060,7 @@ static int lov_create(const struct lu_env *env, struct obd_export *exp,
 
 #define ASSERT_LSM_MAGIC(lsmp)						  \
 do {									    \
-	LASSERT((lsmp) != NULL);						\
+	LASSERT((lsmp));						\
 	LASSERTF(((lsmp)->lsm_magic == LOV_MAGIC_V1 ||			  \
 		 (lsmp)->lsm_magic == LOV_MAGIC_V3),			    \
 		 "%p->lsm_magic=%x\n", (lsmp), (lsmp)->lsm_magic);	      \
@@ -1065,7 +1073,6 @@ static int lov_destroy(const struct lu_env *env, struct obd_export *exp,
 	struct lov_request_set *set;
 	struct obd_info oinfo;
 	struct lov_request *req;
-	struct list_head *pos;
 	struct lov_obd *lov;
 	int rc = 0, err = 0;
 
@@ -1085,9 +1092,7 @@ static int lov_destroy(const struct lu_env *env, struct obd_export *exp,
 	if (rc)
 		goto out;
 
-	list_for_each(pos, &set->set_list) {
-		req = list_entry(pos, struct lov_request, rq_link);
-
+	list_for_each_entry(req, &set->set_list, rq_link) {
 		if (oa->o_valid & OBD_MD_FLCOOKIE)
 			oti->oti_logcookies = set->set_cookies + req->rq_stripe;
 
@@ -1105,10 +1110,9 @@ static int lov_destroy(const struct lu_env *env, struct obd_export *exp,
 		}
 	}
 
-	if (rc == 0) {
-		LASSERT(lsm_op_find(lsm->lsm_magic) != NULL);
+	if (rc == 0)
 		rc = lsm_op_find(lsm->lsm_magic)->lsm_destroy(lsm, oa, md_exp);
-	}
+
 	err = lov_fini_destroy_set(set);
 out:
 	obd_putref(exp->exp_obd);
@@ -1133,7 +1137,6 @@ static int lov_getattr_async(struct obd_export *exp, struct obd_info *oinfo,
 {
 	struct lov_request_set *lovset;
 	struct lov_obd *lov;
-	struct list_head *pos;
 	struct lov_request *req;
 	int rc = 0, err;
 
@@ -1153,9 +1156,7 @@ static int lov_getattr_async(struct obd_export *exp, struct obd_info *oinfo,
 	       POSTID(&oinfo->oi_md->lsm_oi), oinfo->oi_md->lsm_stripe_count,
 	       oinfo->oi_md->lsm_stripe_size);
 
-	list_for_each(pos, &lovset->set_list) {
-		req = list_entry(pos, struct lov_request, rq_link);
-
+	list_for_each_entry(req, &lovset->set_list, rq_link) {
 		CDEBUG(D_INFO, "objid " DOSTID "[%d] has subobj " DOSTID " at idx%u\n",
 		       POSTID(&oinfo->oi_oa->o_oi), req->rq_stripe,
 		       POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx);
@@ -1174,7 +1175,7 @@ static int lov_getattr_async(struct obd_export *exp, struct obd_info *oinfo,
 
 	if (!list_empty(&rqset->set_requests)) {
 		LASSERT(rc == 0);
-		LASSERT(rqset->set_interpret == NULL);
+		LASSERT(!rqset->set_interpret);
 		rqset->set_interpret = lov_getattr_interpret;
 		rqset->set_arg = (void *)lovset;
 		return rc;
@@ -1199,14 +1200,14 @@ static int lov_setattr_interpret(struct ptlrpc_request_set *rqset,
 }
 
 /* If @oti is given, the request goes from MDS and responses from OSTs are not
-   needed. Otherwise, a client is waiting for responses. */
+ * needed. Otherwise, a client is waiting for responses.
+ */
 static int lov_setattr_async(struct obd_export *exp, struct obd_info *oinfo,
 			     struct obd_trans_info *oti,
 			     struct ptlrpc_request_set *rqset)
 {
 	struct lov_request_set *set;
 	struct lov_request *req;
-	struct list_head *pos;
 	struct lov_obd *lov;
 	int rc = 0;
 
@@ -1230,9 +1231,7 @@ static int lov_setattr_async(struct obd_export *exp, struct obd_info *oinfo,
 	       oinfo->oi_md->lsm_stripe_count,
 	       oinfo->oi_md->lsm_stripe_size);
 
-	list_for_each(pos, &set->set_list) {
-		req = list_entry(pos, struct lov_request, rq_link);
-
+	list_for_each_entry(req, &set->set_list, rq_link) {
 		if (oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE)
 			oti->oti_logcookies = set->set_cookies + req->rq_stripe;
 
@@ -1262,7 +1261,7 @@ static int lov_setattr_async(struct obd_export *exp, struct obd_info *oinfo,
 		return rc ? rc : err;
 	}
 
-	LASSERT(rqset->set_interpret == NULL);
+	LASSERT(!rqset->set_interpret);
 	rqset->set_interpret = lov_setattr_interpret;
 	rqset->set_arg = (void *)set;
 
@@ -1272,7 +1271,8 @@ static int lov_setattr_async(struct obd_export *exp, struct obd_info *oinfo,
 /* find any ldlm lock of the inode in lov
  * return 0    not find
  *	1    find one
- *      < 0    error */
+ *      < 0    error
+ */
 static int lov_find_cbdata(struct obd_export *exp,
 			   struct lov_stripe_md *lsm, ldlm_iterator_t it,
 			   void *data)
@@ -1326,20 +1326,17 @@ static int lov_statfs_async(struct obd_export *exp, struct obd_info *oinfo,
 	struct obd_device      *obd = class_exp2obd(exp);
 	struct lov_request_set *set;
 	struct lov_request *req;
-	struct list_head *pos;
 	struct lov_obd *lov;
 	int rc = 0;
 
-	LASSERT(oinfo != NULL);
-	LASSERT(oinfo->oi_osfs != NULL);
+	LASSERT(oinfo->oi_osfs);
 
 	lov = &obd->u.lov;
 	rc = lov_prep_statfs_set(obd, oinfo, &set);
 	if (rc)
 		return rc;
 
-	list_for_each(pos, &set->set_list) {
-		req = list_entry(pos, struct lov_request, rq_link);
+	list_for_each_entry(req, &set->set_list, rq_link) {
 		rc = obd_statfs_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
 				      &req->rq_oi, max_age, rqset);
 		if (rc)
@@ -1355,7 +1352,7 @@ static int lov_statfs_async(struct obd_export *exp, struct obd_info *oinfo,
 		return rc ? rc : err;
 	}
 
-	LASSERT(rqset->set_interpret == NULL);
+	LASSERT(!rqset->set_interpret);
 	rqset->set_interpret = lov_statfs_interpret;
 	rqset->set_arg = (void *)set;
 	return 0;
@@ -1369,9 +1366,10 @@ static int lov_statfs(const struct lu_env *env, struct obd_export *exp,
 	int rc = 0;
 
 	/* for obdclass we forbid using obd_statfs_rqset, but prefer using async
-	 * statfs requests */
+	 * statfs requests
+	 */
 	set = ptlrpc_prep_set();
-	if (set == NULL)
+	if (!set)
 		return -ENOMEM;
 
 	oinfo.oi_osfs = osfs;
@@ -1503,7 +1501,7 @@ static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
 						     &qctl->obd_uuid))
 					continue;
 
-				if (tgt->ltd_exp == NULL)
+				if (!tgt->ltd_exp)
 					return -EINVAL;
 
 				break;
@@ -1545,14 +1543,15 @@ static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
 				continue;
 
 			/* ll_umount_begin() sets force flag but for lov, not
-			 * osc. Let's pass it through */
+			 * osc. Let's pass it through
+			 */
 			osc_obd = class_exp2obd(lov->lov_tgts[i]->ltd_exp);
 			osc_obd->obd_force = obddev->obd_force;
 			err = obd_iocontrol(cmd, lov->lov_tgts[i]->ltd_exp,
 					    len, karg, uarg);
-			if (err == -ENODATA && cmd == OBD_IOC_POLL_QUOTACHECK) {
+			if (err == -ENODATA && cmd == OBD_IOC_POLL_QUOTACHECK)
 				return err;
-			} else if (err) {
+			if (err) {
 				if (lov->lov_tgts[i]->ltd_active) {
 					CDEBUG(err == -ENOTTY ?
 					       D_IOCTL : D_WARNING,
@@ -1622,7 +1621,8 @@ static u64 fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap,
 		return -EINVAL;
 
 	/* If we have finished mapping on previous device, shift logical
-	 * offset to start of next device */
+	 * offset to start of next device
+	 */
 	if ((lov_stripe_intersects(lsm, stripe_no, fm_start, fm_end,
 				   &lun_start, &lun_end)) != 0 &&
 				   local_end < lun_end) {
@@ -1630,7 +1630,8 @@ static u64 fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap,
 		*start_stripe = stripe_no;
 	} else {
 		/* This is a special value to indicate that caller should
-		 * calculate offset in next stripe. */
+		 * calculate offset in next stripe.
+		 */
 		fm_end_offset = 0;
 		*start_stripe = (stripe_no + 1) % lsm->lsm_stripe_count;
 	}
@@ -1741,7 +1742,7 @@ static int lov_fiemap(struct lov_obd *lov, __u32 keylen, void *key,
 		buffer_size = fiemap_count_to_size(fm_key->fiemap.fm_extent_count);
 
 	fm_local = libcfs_kvzalloc(buffer_size, GFP_NOFS);
-	if (fm_local == NULL) {
+	if (!fm_local) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1798,7 +1799,8 @@ static int lov_fiemap(struct lov_obd *lov, __u32 keylen, void *key,
 
 		/* If this is a continuation FIEMAP call and we are on
 		 * starting stripe then lun_start needs to be set to
-		 * fm_end_offset */
+		 * fm_end_offset
+		 */
 		if (fm_end_offset != 0 && cur_stripe == start_stripe)
 			lun_start = fm_end_offset;
 
@@ -1820,7 +1822,8 @@ static int lov_fiemap(struct lov_obd *lov, __u32 keylen, void *key,
 		len_mapped_single_call = 0;
 
 		/* If the output buffer is very large and the objects have many
-		 * extents we may need to loop on a single OST repeatedly */
+		 * extents we may need to loop on a single OST repeatedly
+		 */
 		ost_eof = 0;
 		ost_done = 0;
 		do {
@@ -1876,7 +1879,8 @@ inactive_tgt:
 			if (ext_count == 0) {
 				ost_done = 1;
 				/* If last stripe has hole at the end,
-				 * then we need to return */
+				 * then we need to return
+				 */
 				if (cur_stripe_wrap == last_stripe) {
 					fiemap->fm_mapped_extents = 0;
 					goto finish;
@@ -1898,7 +1902,8 @@ inactive_tgt:
 				ost_done = 1;
 
 			/* Clear the EXTENT_LAST flag which can be present on
-			 * last extent */
+			 * last extent
+			 */
 			if (lcl_fm_ext[ext_count-1].fe_flags & FIEMAP_EXTENT_LAST)
 				lcl_fm_ext[ext_count - 1].fe_flags &=
 							    ~FIEMAP_EXTENT_LAST;
@@ -1927,7 +1932,8 @@ inactive_tgt:
 
 finish:
 	/* Indicate that we are returning device offsets unless file just has
-	 * single stripe */
+	 * single stripe
+	 */
 	if (lsm->lsm_stripe_count > 1)
 		fiemap->fm_flags |= FIEMAP_FLAG_DEVICE_ORDER;
 
@@ -1935,7 +1941,8 @@ finish:
 		goto skip_last_device_calc;
 
 	/* Check if we have reached the last stripe and whether mapping for that
-	 * stripe is done. */
+	 * stripe is done.
+	 */
 	if (cur_stripe_wrap == last_stripe) {
 		if (ost_done || ost_eof)
 			fiemap->fm_extents[current_extent - 1].fe_flags |=
@@ -1980,10 +1987,12 @@ static int lov_get_info(const struct lu_env *env, struct obd_export *exp,
 
 		/* XXX This is another one of those bits that will need to
 		 * change if we ever actually support nested LOVs.  It uses
-		 * the lock's export to find out which stripe it is. */
+		 * the lock's export to find out which stripe it is.
+		 */
 		/* XXX - it's assumed all the locks for deleted OSTs have
 		 * been cancelled. Also, the export for deleted OSTs will
-		 * be NULL and won't match the lock's export. */
+		 * be NULL and won't match the lock's export.
+		 */
 		for (i = 0; i < lsm->lsm_stripe_count; i++) {
 			loi = lsm->lsm_oinfo[i];
 			if (lov_oinfo_is_dummy(loi))
@@ -2072,7 +2081,7 @@ static int lov_set_info_async(const struct lu_env *env, struct obd_export *exp,
 	unsigned next_id = 0,  mds_con = 0;
 
 	incr = check_uuid = do_inactive = no_set = 0;
-	if (set == NULL) {
+	if (!set) {
 		no_set = 1;
 		set = ptlrpc_prep_set();
 		if (!set)
@@ -2095,7 +2104,7 @@ static int lov_set_info_async(const struct lu_env *env, struct obd_export *exp,
 	} else if (KEY_IS(KEY_MDS_CONN)) {
 		mds_con = 1;
 	} else if (KEY_IS(KEY_CACHE_SET)) {
-		LASSERT(lov->lov_cache == NULL);
+		LASSERT(!lov->lov_cache);
 		lov->lov_cache = val;
 		do_inactive = 1;
 	}
@@ -2319,7 +2328,8 @@ static int __init lov_init(void)
 
 	/* print an address of _any_ initialized kernel symbol from this
 	 * module, to allow debugging with gdb that doesn't support data
-	 * symbols from modules.*/
+	 * symbols from modules.
+	 */
 	CDEBUG(D_INFO, "Lustre LOV module (%p).\n", &lov_caches);
 
 	rc = lu_kmem_init(lov_caches);
@@ -2329,7 +2339,7 @@ static int __init lov_init(void)
 	lov_oinfo_slab = kmem_cache_create("lov_oinfo",
 					      sizeof(struct lov_oinfo),
 					      0, SLAB_HWCACHE_ALIGN, NULL);
-	if (lov_oinfo_slab == NULL) {
+	if (!lov_oinfo_slab) {
 		lu_kmem_fini(lov_caches);
 		return -ENOMEM;
 	}
diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c
index 3b79ebc..4101696 100644
--- a/drivers/staging/lustre/lustre/lov/lov_object.c
+++ b/drivers/staging/lustre/lustre/lov/lov_object.c
@@ -135,7 +135,8 @@ static int lov_init_sub(const struct lu_env *env, struct lov_object *lov,
 		 * Do not leave the object in cache to avoid accessing
 		 * freed memory. This is because osc_object is referring to
 		 * lov_oinfo of lsm_stripe_data which will be freed due to
-		 * this failure. */
+		 * this failure.
+		 */
 		cl_object_kill(env, stripe);
 		cl_object_put(env, stripe);
 		return -EIO;
@@ -154,7 +155,7 @@ static int lov_init_sub(const struct lu_env *env, struct lov_object *lov,
 	/* reuse ->coh_attr_guard to protect coh_parent change */
 	spin_lock(&subhdr->coh_attr_guard);
 	parent = subhdr->coh_parent;
-	if (parent == NULL) {
+	if (!parent) {
 		subhdr->coh_parent = hdr;
 		spin_unlock(&subhdr->coh_attr_guard);
 		subhdr->coh_nesting = hdr->coh_nesting + 1;
@@ -170,11 +171,12 @@ static int lov_init_sub(const struct lu_env *env, struct lov_object *lov,
 
 		spin_unlock(&subhdr->coh_attr_guard);
 		old_obj = lu_object_locate(&parent->coh_lu, &lov_device_type);
-		LASSERT(old_obj != NULL);
+		LASSERT(old_obj);
 		old_lov = cl2lov(lu2cl(old_obj));
 		if (old_lov->lo_layout_invalid) {
 			/* the object's layout has already changed but isn't
-			 * refreshed */
+			 * refreshed
+			 */
 			lu_object_unhash(env, &stripe->co_lu);
 			result = -EAGAIN;
 		} else {
@@ -212,14 +214,14 @@ static int lov_init_raid0(const struct lu_env *env,
 			 LOV_MAGIC_V1, LOV_MAGIC_V3, lsm->lsm_magic);
 	}
 
-	LASSERT(lov->lo_lsm == NULL);
+	LASSERT(!lov->lo_lsm);
 	lov->lo_lsm = lsm_addref(lsm);
 	r0->lo_nr  = lsm->lsm_stripe_count;
 	LASSERT(r0->lo_nr <= lov_targets_nr(dev));
 
 	r0->lo_sub = libcfs_kvzalloc(r0->lo_nr * sizeof(r0->lo_sub[0]),
 				     GFP_NOFS);
-	if (r0->lo_sub != NULL) {
+	if (r0->lo_sub) {
 		result = 0;
 		subconf->coc_inode = conf->coc_inode;
 		spin_lock_init(&r0->lo_sub_lock);
@@ -241,9 +243,10 @@ static int lov_init_raid0(const struct lu_env *env,
 
 			subdev = lovsub2cl_dev(dev->ld_target[ost_idx]);
 			subconf->u.coc_oinfo = oinfo;
-			LASSERTF(subdev != NULL, "not init ost %d\n", ost_idx);
+			LASSERTF(subdev, "not init ost %d\n", ost_idx);
 			/* In the function below, .hs_keycmp resolves to
-			 * lu_obj_hop_keycmp() */
+			 * lu_obj_hop_keycmp()
+			 */
 			/* coverity[overrun-buffer-val] */
 			stripe = lov_sub_find(env, subdev, ofid, subconf);
 			if (!IS_ERR(stripe)) {
@@ -269,9 +272,9 @@ static int lov_init_released(const struct lu_env *env,
 {
 	struct lov_stripe_md *lsm = conf->u.coc_md->lsm;
 
-	LASSERT(lsm != NULL);
+	LASSERT(lsm);
 	LASSERT(lsm_is_released(lsm));
-	LASSERT(lov->lo_lsm == NULL);
+	LASSERT(!lov->lo_lsm);
 
 	lov->lo_lsm = lsm_addref(lsm);
 	return 0;
@@ -310,7 +313,8 @@ static void lov_subobject_kill(const struct lu_env *env, struct lov_object *lov,
 	cl_object_put(env, sub);
 
 	/* ... wait until it is actually destroyed---sub-object clears its
-	 * ->lo_sub[] slot in lovsub_object_fini() */
+	 * ->lo_sub[] slot in lovsub_object_fini()
+	 */
 	if (r0->lo_sub[idx] == los) {
 		waiter = &lov_env_info(env)->lti_waiter;
 		init_waitqueue_entry(waiter, current);
@@ -318,7 +322,8 @@ static void lov_subobject_kill(const struct lu_env *env, struct lov_object *lov,
 		set_current_state(TASK_UNINTERRUPTIBLE);
 		while (1) {
 			/* this wait-queue is signaled at the end of
-			 * lu_object_free(). */
+			 * lu_object_free().
+			 */
 			set_current_state(TASK_UNINTERRUPTIBLE);
 			spin_lock(&r0->lo_sub_lock);
 			if (r0->lo_sub[idx] == los) {
@@ -332,7 +337,7 @@ static void lov_subobject_kill(const struct lu_env *env, struct lov_object *lov,
 		}
 		remove_wait_queue(&bkt->lsb_marche_funebre, waiter);
 	}
-	LASSERT(r0->lo_sub[idx] == NULL);
+	LASSERT(!r0->lo_sub[idx]);
 }
 
 static int lov_delete_raid0(const struct lu_env *env, struct lov_object *lov,
@@ -345,11 +350,11 @@ static int lov_delete_raid0(const struct lu_env *env, struct lov_object *lov,
 	dump_lsm(D_INODE, lsm);
 
 	lov_layout_wait(env, lov);
-	if (r0->lo_sub != NULL) {
+	if (r0->lo_sub) {
 		for (i = 0; i < r0->lo_nr; ++i) {
 			struct lovsub_object *los = r0->lo_sub[i];
 
-			if (los != NULL) {
+			if (los) {
 				cl_locks_prune(env, &los->lso_cl, 1);
 				/*
 				 * If top-level object is to be evicted from
@@ -374,7 +379,7 @@ static void lov_fini_raid0(const struct lu_env *env, struct lov_object *lov,
 {
 	struct lov_layout_raid0 *r0 = &state->raid0;
 
-	if (r0->lo_sub != NULL) {
+	if (r0->lo_sub) {
 		kvfree(r0->lo_sub);
 		r0->lo_sub = NULL;
 	}
@@ -412,7 +417,7 @@ static int lov_print_raid0(const struct lu_env *env, void *cookie,
 	for (i = 0; i < r0->lo_nr; ++i) {
 		struct lu_object *sub;
 
-		if (r0->lo_sub[i] != NULL) {
+		if (r0->lo_sub[i]) {
 			sub = lovsub2lu(r0->lo_sub[i]);
 			lu_object_print(env, cookie, p, sub);
 		} else {
@@ -465,7 +470,8 @@ static int lov_attr_get_raid0(const struct lu_env *env, struct cl_object *obj,
 	 * context, and this function is called in ccc_lock_state(), it will
 	 * hit this assertion.
 	 * Anyway, it's still okay to call attr_get w/o type guard as layout
-	 * can't go if locks exist. */
+	 * can't go if locks exist.
+	 */
 	/* LASSERT(atomic_read(&lsm->lsm_refc) > 1); */
 
 	if (!r0->lo_attr_valid) {
@@ -475,7 +481,8 @@ static int lov_attr_get_raid0(const struct lu_env *env, struct cl_object *obj,
 
 		memset(lvb, 0, sizeof(*lvb));
 		/* XXX: timestamps can be negative by sanity:test_39m,
-		 * how can it be? */
+		 * how can it be?
+		 */
 		lvb->lvb_atime = LLONG_MIN;
 		lvb->lvb_ctime = LLONG_MIN;
 		lvb->lvb_mtime = LLONG_MIN;
@@ -569,7 +576,7 @@ static const struct lov_layout_operations lov_dispatch[] = {
  */
 static enum lov_layout_type lov_type(struct lov_stripe_md *lsm)
 {
-	if (lsm == NULL)
+	if (!lsm)
 		return LLT_EMPTY;
 	if (lsm_is_released(lsm))
 		return LLT_RELEASED;
@@ -624,7 +631,7 @@ static void lov_conf_lock(struct lov_object *lov)
 {
 	LASSERT(lov->lo_owner != current);
 	down_write(&lov->lo_type_guard);
-	LASSERT(lov->lo_owner == NULL);
+	LASSERT(!lov->lo_owner);
 	lov->lo_owner = current;
 }
 
@@ -666,7 +673,7 @@ static int lov_layout_change(const struct lu_env *unused,
 
 	LASSERT(0 <= lov->lo_type && lov->lo_type < ARRAY_SIZE(lov_dispatch));
 
-	if (conf->u.coc_md != NULL)
+	if (conf->u.coc_md)
 		llt = lov_type(conf->u.coc_md->lsm);
 	LASSERT(0 <= llt && llt < ARRAY_SIZE(lov_dispatch));
 
@@ -689,7 +696,7 @@ static int lov_layout_change(const struct lu_env *unused,
 		old_ops->llo_fini(env, lov, &lov->u);
 
 		LASSERT(atomic_read(&lov->lo_active_ios) == 0);
-		LASSERT(hdr->coh_tree.rnode == NULL);
+		LASSERT(!hdr->coh_tree.rnode);
 		LASSERT(hdr->coh_pages == 0);
 
 		lov->lo_type = LLT_EMPTY;
@@ -767,10 +774,10 @@ static int lov_conf_set(const struct lu_env *env, struct cl_object *obj,
 
 	LASSERT(conf->coc_opc == OBJECT_CONF_SET);
 
-	if (conf->u.coc_md != NULL)
+	if (conf->u.coc_md)
 		lsm = conf->u.coc_md->lsm;
-	if ((lsm == NULL && lov->lo_lsm == NULL) ||
-	    ((lsm != NULL && lov->lo_lsm != NULL) &&
+	if ((!lsm && !lov->lo_lsm) ||
+	    ((lsm && lov->lo_lsm) &&
 	     (lov->lo_lsm->lsm_layout_gen == lsm->lsm_layout_gen) &&
 	     (lov->lo_lsm->lsm_pattern == lsm->lsm_pattern))) {
 		/* same version of layout */
@@ -845,7 +852,8 @@ static int lov_attr_get(const struct lu_env *env, struct cl_object *obj,
 			struct cl_attr *attr)
 {
 	/* do not take lock, as this function is called under a
-	 * spin-lock. Layout is protected from changing by ongoing IO. */
+	 * spin-lock. Layout is protected from changing by ongoing IO.
+	 */
 	return LOV_2DISPATCH_NOLOCK(cl2lov(obj), llo_getattr, env, obj, attr);
 }
 
@@ -892,7 +900,7 @@ struct lu_object *lov_object_alloc(const struct lu_env *env,
 	struct lu_object  *obj;
 
 	lov = kmem_cache_alloc(lov_object_kmem, GFP_NOFS | __GFP_ZERO);
-	if (lov != NULL) {
+	if (lov) {
 		obj = lov2lu(lov);
 		lu_object_init(obj, NULL, dev);
 		lov->lo_cl.co_ops = &lov_ops;
@@ -913,7 +921,7 @@ static struct lov_stripe_md *lov_lsm_addref(struct lov_object *lov)
 	struct lov_stripe_md *lsm = NULL;
 
 	lov_conf_freeze(lov);
-	if (lov->lo_lsm != NULL) {
+	if (lov->lo_lsm) {
 		lsm = lsm_addref(lov->lo_lsm);
 		CDEBUG(D_INODE, "lsm %p addref %d/%d by %p.\n",
 			lsm, atomic_read(&lsm->lsm_refc),
@@ -928,12 +936,12 @@ struct lov_stripe_md *lov_lsm_get(struct cl_object *clobj)
 	struct lu_object *luobj;
 	struct lov_stripe_md *lsm = NULL;
 
-	if (clobj == NULL)
+	if (!clobj)
 		return NULL;
 
 	luobj = lu_object_locate(&cl_object_header(clobj)->coh_lu,
 				 &lov_device_type);
-	if (luobj != NULL)
+	if (luobj)
 		lsm = lov_lsm_addref(lu2lov(luobj));
 	return lsm;
 }
@@ -941,7 +949,7 @@ EXPORT_SYMBOL(lov_lsm_get);
 
 void lov_lsm_put(struct cl_object *unused, struct lov_stripe_md *lsm)
 {
-	if (lsm != NULL)
+	if (lsm)
 		lov_free_memmd(&lsm);
 }
 EXPORT_SYMBOL(lov_lsm_put);
@@ -953,7 +961,7 @@ int lov_read_and_clear_async_rc(struct cl_object *clob)
 
 	luobj = lu_object_locate(&cl_object_header(clob)->coh_lu,
 				 &lov_device_type);
-	if (luobj != NULL) {
+	if (luobj) {
 		struct lov_object *lov = lu2lov(luobj);
 
 		lov_conf_freeze(lov);
@@ -963,7 +971,6 @@ int lov_read_and_clear_async_rc(struct cl_object *clob)
 			int i;
 
 			lsm = lov->lo_lsm;
-			LASSERT(lsm != NULL);
 			for (i = 0; i < lsm->lsm_stripe_count; i++) {
 				struct lov_oinfo *loi = lsm->lsm_oinfo[i];
 
diff --git a/drivers/staging/lustre/lustre/lov/lov_offset.c b/drivers/staging/lustre/lustre/lov/lov_offset.c
index aa520aa..1ceea3d 100644
--- a/drivers/staging/lustre/lustre/lov/lov_offset.c
+++ b/drivers/staging/lustre/lustre/lov/lov_offset.c
@@ -55,7 +55,6 @@ u64 lov_stripe_size(struct lov_stripe_md *lsm, u64 ost_size,
 	if (ost_size == 0)
 		return 0;
 
-	LASSERT(lsm_op_find(magic) != NULL);
 	lsm_op_find(magic)->lsm_stripe_by_index(lsm, &stripeno, NULL, &swidth);
 
 	/* lov_do_div64(a, b) returns a % b, and a = a / b */
@@ -115,7 +114,8 @@ u64 lov_stripe_size(struct lov_stripe_md *lsm, u64 ost_size,
  * this function returns < 0 when the offset was "before" the stripe and
  * was moved forward to the start of the stripe in question;  0 when it
  * falls in the stripe and no shifting was done; > 0 when the offset
- * was outside the stripe and was pulled back to its final byte. */
+ * was outside the stripe and was pulled back to its final byte.
+ */
 int lov_stripe_offset(struct lov_stripe_md *lsm, u64 lov_off,
 		      int stripeno, u64 *obdoff)
 {
@@ -129,8 +129,6 @@ int lov_stripe_offset(struct lov_stripe_md *lsm, u64 lov_off,
 		return 0;
 	}
 
-	LASSERT(lsm_op_find(magic) != NULL);
-
 	lsm_op_find(magic)->lsm_stripe_by_index(lsm, &stripeno, &lov_off,
 						&swidth);
 
@@ -183,7 +181,6 @@ u64 lov_size_to_stripe(struct lov_stripe_md *lsm, u64 file_size,
 	if (file_size == OBD_OBJECT_EOF)
 		return OBD_OBJECT_EOF;
 
-	LASSERT(lsm_op_find(magic) != NULL);
 	lsm_op_find(magic)->lsm_stripe_by_index(lsm, &stripeno, &file_size,
 						&swidth);
 
@@ -213,7 +210,8 @@ u64 lov_size_to_stripe(struct lov_stripe_md *lsm, u64 file_size,
 
 /* given an extent in an lov and a stripe, calculate the extent of the stripe
  * that is contained within the lov extent.  this returns true if the given
- * stripe does intersect with the lov extent. */
+ * stripe does intersect with the lov extent.
+ */
 int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno,
 			  u64 start, u64 end, u64 *obd_start, u64 *obd_end)
 {
@@ -227,7 +225,8 @@ int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno,
 
 	/* this stripe doesn't intersect the file extent when neither
 	 * start or the end intersected the stripe and obd_start and
-	 * obd_end got rounded up to the save value. */
+	 * obd_end got rounded up to the save value.
+	 */
 	if (start_side != 0 && end_side != 0 && *obd_start == *obd_end)
 		return 0;
 
@@ -238,7 +237,8 @@ int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno,
 	 * in the wrong direction and touch it up.
 	 * interestingly, this can't underflow since end must be > start
 	 * if we passed through the previous check.
-	 * (should we assert for that somewhere?) */
+	 * (should we assert for that somewhere?)
+	 */
 	if (end_side != 0)
 		(*obd_end)--;
 
@@ -252,7 +252,6 @@ int lov_stripe_number(struct lov_stripe_md *lsm, u64 lov_off)
 	u64 stripe_off, swidth;
 	int magic = lsm->lsm_magic;
 
-	LASSERT(lsm_op_find(magic) != NULL);
 	lsm_op_find(magic)->lsm_stripe_by_offset(lsm, NULL, &lov_off, &swidth);
 
 	stripe_off = lov_do_div64(lov_off, swidth);
diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c
index a78211f..9235d7d 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pack.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pack.c
@@ -141,7 +141,8 @@ int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
 
 	if (lsm) {
 		/* If we are just sizing the EA, limit the stripe count
-		 * to the actual number of OSTs in this filesystem. */
+		 * to the actual number of OSTs in this filesystem.
+		 */
 		if (!lmmp) {
 			stripe_count = lov_get_stripecnt(lov, lmm_magic,
 							lsm->lsm_stripe_count);
@@ -155,7 +156,8 @@ int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
 		/* No need to allocate more than maximum supported stripes.
 		 * Anyway, this is pretty inaccurate since ld_tgt_count now
 		 * represents max index and we should rely on the actual number
-		 * of OSTs instead */
+		 * of OSTs instead
+		 */
 		stripe_count = lov_mds_md_max_stripe_count(
 			lov->lov_ocd.ocd_max_easize, lmm_magic);
 
@@ -183,7 +185,7 @@ int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
 			return -ENOMEM;
 	}
 
-	CDEBUG(D_INFO, "lov_packmd: LOV_MAGIC 0x%08X, lmm_size = %d \n",
+	CDEBUG(D_INFO, "lov_packmd: LOV_MAGIC 0x%08X, lmm_size = %d\n",
 	       lmm_magic, lmm_size);
 
 	lmmv1 = *lmmp;
@@ -241,7 +243,8 @@ __u16 lov_get_stripecnt(struct lov_obd *lov, __u32 magic, __u16 stripe_count)
 		stripe_count = 1;
 
 	/* stripe count is based on whether ldiskfs can handle
-	 * larger EA sizes */
+	 * larger EA sizes
+	 */
 	if (lov->lov_ocd.ocd_connect_flags & OBD_CONNECT_MAX_EASIZE &&
 	    lov->lov_ocd.ocd_max_easize)
 		max_stripes = lov_mds_md_max_stripe_count(
@@ -257,7 +260,7 @@ static int lov_verify_lmm(void *lmm, int lmm_bytes, __u16 *stripe_count)
 {
 	int rc;
 
-	if (lsm_op_find(le32_to_cpu(*(__u32 *)lmm)) == NULL) {
+	if (!lsm_op_find(le32_to_cpu(*(__u32 *)lmm))) {
 		CERROR("bad disk LOV MAGIC: 0x%08X; dumping LMM (size=%d):\n",
 		       le32_to_cpu(*(__u32 *)lmm), lmm_bytes);
 		CERROR("%*phN\n", lmm_bytes, lmm);
@@ -306,10 +309,9 @@ int lov_free_memmd(struct lov_stripe_md **lsmp)
 	*lsmp = NULL;
 	LASSERT(atomic_read(&lsm->lsm_refc) > 0);
 	refc = atomic_dec_return(&lsm->lsm_refc);
-	if (refc == 0) {
-		LASSERT(lsm_op_find(lsm->lsm_magic) != NULL);
+	if (refc == 0)
 		lsm_op_find(lsm->lsm_magic)->lsm_free(lsm);
-	}
+
 	return refc;
 }
 
@@ -359,7 +361,6 @@ int lov_unpackmd(struct obd_export *exp,  struct lov_stripe_md **lsmp,
 	if (!lmm)
 		return lsm_size;
 
-	LASSERT(lsm_op_find(magic) != NULL);
 	rc = lsm_op_find(magic)->lsm_unpackmd(lov, *lsmp, lmm);
 	if (rc) {
 		lov_free_memmd(lsmp);
@@ -399,13 +400,15 @@ int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm,
 	set_fs(KERNEL_DS);
 
 	/* we only need the header part from user space to get lmm_magic and
-	 * lmm_stripe_count, (the header part is common to v1 and v3) */
+	 * lmm_stripe_count, (the header part is common to v1 and v3)
+	 */
 	lum_size = sizeof(struct lov_user_md_v1);
 	if (copy_from_user(&lum, lump, lum_size)) {
 		rc = -EFAULT;
 		goto out_set;
-	} else if ((lum.lmm_magic != LOV_USER_MAGIC) &&
-		 (lum.lmm_magic != LOV_USER_MAGIC_V3)) {
+	}
+	if ((lum.lmm_magic != LOV_USER_MAGIC) &&
+	    (lum.lmm_magic != LOV_USER_MAGIC_V3)) {
 		rc = -EINVAL;
 		goto out_set;
 	}
diff --git a/drivers/staging/lustre/lustre/lov/lov_page.c b/drivers/staging/lustre/lustre/lov/lov_page.c
index 037ae91..17ae450 100644
--- a/drivers/staging/lustre/lustre/lov/lov_page.c
+++ b/drivers/staging/lustre/lustre/lov/lov_page.c
@@ -57,7 +57,7 @@ static int lov_page_invariant(const struct cl_page_slice *slice)
 	const struct cl_page  *page = slice->cpl_page;
 	const struct cl_page  *sub  = lov_sub_page(slice);
 
-	return ergo(sub != NULL,
+	return ergo(sub,
 		    page->cp_child == sub &&
 		    sub->cp_parent == page &&
 		    page->cp_state == sub->cp_state);
@@ -70,7 +70,7 @@ static void lov_page_fini(const struct lu_env *env,
 
 	LINVRNT(lov_page_invariant(slice));
 
-	if (sub != NULL) {
+	if (sub) {
 		LASSERT(sub->cp_state == CPS_FREEING);
 		lu_ref_del(&sub->cp_reference, "lov", sub->cp_parent);
 		sub->cp_parent = NULL;
@@ -151,7 +151,7 @@ static const struct cl_page_operations lov_page_ops = {
 static void lov_empty_page_fini(const struct lu_env *env,
 				struct cl_page_slice *slice)
 {
-	LASSERT(slice->cpl_page->cp_child == NULL);
+	LASSERT(!slice->cpl_page->cp_child);
 }
 
 int lov_page_init_raid0(const struct lu_env *env, struct cl_object *obj,
diff --git a/drivers/staging/lustre/lustre/lov/lov_pool.c b/drivers/staging/lustre/lustre/lov/lov_pool.c
index 3ee1d40..210304f 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pool.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pool.c
@@ -64,7 +64,7 @@ void lov_pool_putref(struct pool_desc *pool)
 	if (atomic_dec_and_test(&pool->pool_refcount)) {
 		LASSERT(hlist_unhashed(&pool->pool_hash));
 		LASSERT(list_empty(&pool->pool_list));
-		LASSERT(pool->pool_debugfs_entry == NULL);
+		LASSERT(!pool->pool_debugfs_entry);
 		lov_ost_pool_free(&(pool->pool_rr.lqr_pool));
 		lov_ost_pool_free(&(pool->pool_obds));
 		kfree(pool);
@@ -154,7 +154,7 @@ struct cfs_hash_ops pool_hash_operations = {
 
 /* ifdef needed for liblustre support */
 /*
- * pool /proc seq_file methods
+ * pool debugfs seq_file methods
  */
 /*
  * iterator is used to go through the target pool entries
@@ -204,7 +204,8 @@ static void *pool_proc_start(struct seq_file *s, loff_t *pos)
 	if ((pool_tgt_count(pool) == 0) ||
 	    (*pos >= pool_tgt_count(pool))) {
 		/* iter is not created, so stop() has no way to
-		 * find pool to dec ref */
+		 * find pool to dec ref
+		 */
 		lov_pool_putref(pool);
 		return NULL;
 	}
@@ -217,7 +218,8 @@ static void *pool_proc_start(struct seq_file *s, loff_t *pos)
 	iter->idx = 0;
 
 	/* we use seq_file private field to memorized iterator so
-	 * we can free it at stop() */
+	 * we can free it at stop()
+	 */
 	/* /!\ do not forget to restore it to pool before freeing it */
 	s->private = iter;
 	if (*pos > 0) {
@@ -226,8 +228,8 @@ static void *pool_proc_start(struct seq_file *s, loff_t *pos)
 
 		i = 0;
 		do {
-		     ptr = pool_proc_next(s, &iter, &i);
-		} while ((i < *pos) && (ptr != NULL));
+			ptr = pool_proc_next(s, &iter, &i);
+		} while ((i < *pos) && ptr);
 		return ptr;
 	}
 	return iter;
@@ -239,10 +241,12 @@ static void pool_proc_stop(struct seq_file *s, void *v)
 
 	/* in some cases stop() method is called 2 times, without
 	 * calling start() method (see seq_read() from fs/seq_file.c)
-	 * we have to free only if s->private is an iterator */
+	 * we have to free only if s->private is an iterator
+	 */
 	if ((iter) && (iter->magic == POOL_IT_MAGIC)) {
 		/* we restore s->private so next call to pool_proc_start()
-		 * will work */
+		 * will work
+		 */
 		s->private = iter->pool;
 		lov_pool_putref(iter->pool);
 		kfree(iter);
@@ -255,7 +259,7 @@ static int pool_proc_show(struct seq_file *s, void *v)
 	struct lov_tgt_desc *tgt;
 
 	LASSERTF(iter->magic == POOL_IT_MAGIC, "%08X", iter->magic);
-	LASSERT(iter->pool != NULL);
+	LASSERT(iter->pool);
 	LASSERT(iter->idx <= pool_tgt_count(iter->pool));
 
 	down_read(&pool_tgt_rw_sem(iter->pool));
@@ -304,7 +308,7 @@ int lov_ost_pool_init(struct ost_pool *op, unsigned int count)
 	init_rwsem(&op->op_rw_sem);
 	op->op_size = count;
 	op->op_array = kcalloc(op->op_size, sizeof(op->op_array[0]), GFP_NOFS);
-	if (op->op_array == NULL) {
+	if (!op->op_array) {
 		op->op_size = 0;
 		return -ENOMEM;
 	}
@@ -324,7 +328,7 @@ int lov_ost_pool_extend(struct ost_pool *op, unsigned int min_count)
 
 	new_size = max(min_count, 2 * op->op_size);
 	new = kcalloc(new_size, sizeof(op->op_array[0]), GFP_NOFS);
-	if (new == NULL)
+	if (!new)
 		return -ENOMEM;
 
 	/* copy old array to new one */
@@ -429,7 +433,7 @@ int lov_pool_new(struct obd_device *obd, char *poolname)
 	INIT_HLIST_NODE(&new_pool->pool_hash);
 
 	/* we need this assert seq_file is not implemented for liblustre */
-	/* get ref for /proc file */
+	/* get ref for debugfs file */
 	lov_pool_getref(new_pool);
 	new_pool->pool_debugfs_entry = ldebugfs_add_simple(
 						lov->lov_pool_debugfs_entry,
@@ -486,7 +490,7 @@ int lov_pool_del(struct obd_device *obd, char *poolname)
 
 	/* lookup and kill hash reference */
 	pool = cfs_hash_del_key(lov->lov_pools_hash_body, poolname);
-	if (pool == NULL)
+	if (!pool)
 		return -ENOENT;
 
 	if (!IS_ERR_OR_NULL(pool->pool_debugfs_entry)) {
@@ -517,7 +521,7 @@ int lov_pool_add(struct obd_device *obd, char *poolname, char *ostname)
 	lov = &(obd->u.lov);
 
 	pool = cfs_hash_lookup(lov->lov_pools_hash_body, poolname);
-	if (pool == NULL)
+	if (!pool)
 		return -ENOENT;
 
 	obd_str2uuid(&ost_uuid, ostname);
@@ -563,7 +567,7 @@ int lov_pool_remove(struct obd_device *obd, char *poolname, char *ostname)
 	lov = &(obd->u.lov);
 
 	pool = cfs_hash_lookup(lov->lov_pools_hash_body, poolname);
-	if (pool == NULL)
+	if (!pool)
 		return -ENOENT;
 
 	obd_str2uuid(&ost_uuid, ostname);
@@ -631,10 +635,10 @@ struct pool_desc *lov_find_pool(struct lov_obd *lov, char *poolname)
 	pool = NULL;
 	if (poolname[0] != '\0') {
 		pool = cfs_hash_lookup(lov->lov_pools_hash_body, poolname);
-		if (pool == NULL)
+		if (!pool)
 			CWARN("Request for an unknown pool ("LOV_POOLNAMEF")\n",
 			      poolname);
-		if ((pool != NULL) && (pool_tgt_count(pool) == 0)) {
+		if (pool && (pool_tgt_count(pool) == 0)) {
 			CWARN("Request for an empty pool ("LOV_POOLNAMEF")\n",
 			       poolname);
 			/* pool is ignored, so we remove ref on it */
diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c
index 42deda7..42660f2 100644
--- a/drivers/staging/lustre/lustre/lov/lov_request.c
+++ b/drivers/staging/lustre/lustre/lov/lov_request.c
@@ -156,7 +156,7 @@ static int lov_check_and_wait_active(struct lov_obd *lov, int ost_idx)
 
 	tgt = lov->lov_tgts[ost_idx];
 
-	if (unlikely(tgt == NULL)) {
+	if (unlikely(!tgt)) {
 		rc = 0;
 		goto out;
 	}
@@ -178,7 +178,7 @@ static int lov_check_and_wait_active(struct lov_obd *lov, int ost_idx)
 				   cfs_time_seconds(1), NULL, NULL);
 
 	rc = l_wait_event(waitq, lov_check_set(lov, ost_idx), &lwi);
-	if (tgt != NULL && tgt->ltd_active)
+	if (tgt && tgt->ltd_active)
 		return 1;
 
 	return 0;
@@ -190,28 +190,23 @@ out:
 
 static int common_attr_done(struct lov_request_set *set)
 {
-	struct list_head *pos;
 	struct lov_request *req;
 	struct obdo *tmp_oa;
 	int rc = 0, attrset = 0;
 
-	LASSERT(set->set_oi != NULL);
-
-	if (set->set_oi->oi_oa == NULL)
+	if (!set->set_oi->oi_oa)
 		return 0;
 
 	if (!atomic_read(&set->set_success))
 		return -EIO;
 
 	tmp_oa = kmem_cache_alloc(obdo_cachep, GFP_NOFS | __GFP_ZERO);
-	if (tmp_oa == NULL) {
+	if (!tmp_oa) {
 		rc = -ENOMEM;
 		goto out;
 	}
 
-	list_for_each(pos, &set->set_list) {
-		req = list_entry(pos, struct lov_request, rq_link);
-
+	list_for_each_entry(req, &set->set_list, rq_link) {
 		if (!req->rq_complete || req->rq_rc)
 			continue;
 		if (req->rq_oi.oi_oa->o_valid == 0)   /* inactive stripe */
@@ -227,7 +222,8 @@ static int common_attr_done(struct lov_request_set *set)
 	if ((set->set_oi->oi_oa->o_valid & OBD_MD_FLEPOCH) &&
 	    (set->set_oi->oi_md->lsm_stripe_count != attrset)) {
 		/* When we take attributes of some epoch, we require all the
-		 * ost to be active. */
+		 * ost to be active.
+		 */
 		CERROR("Not all the stripes had valid attrs\n");
 		rc = -EIO;
 		goto out;
@@ -246,7 +242,7 @@ int lov_fini_getattr_set(struct lov_request_set *set)
 {
 	int rc = 0;
 
-	if (set == NULL)
+	if (!set)
 		return 0;
 	LASSERT(set->set_exp);
 	if (atomic_read(&set->set_completes))
@@ -258,7 +254,8 @@ int lov_fini_getattr_set(struct lov_request_set *set)
 }
 
 /* The callback for osc_getattr_async that finalizes a request info when a
- * response is received. */
+ * response is received.
+ */
 static int cb_getattr_update(void *cookie, int rc)
 {
 	struct obd_info *oinfo = cookie;
@@ -312,7 +309,7 @@ int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo,
 
 		req->rq_oi.oi_oa = kmem_cache_alloc(obdo_cachep,
 						    GFP_NOFS | __GFP_ZERO);
-		if (req->rq_oi.oi_oa == NULL) {
+		if (!req->rq_oi.oi_oa) {
 			kfree(req);
 			rc = -ENOMEM;
 			goto out_set;
@@ -337,7 +334,7 @@ out_set:
 
 int lov_fini_destroy_set(struct lov_request_set *set)
 {
-	if (set == NULL)
+	if (!set)
 		return 0;
 	LASSERT(set->set_exp);
 	if (atomic_read(&set->set_completes)) {
@@ -368,7 +365,7 @@ int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo,
 	set->set_oi->oi_md = lsm;
 	set->set_oi->oi_oa = src_oa;
 	set->set_oti = oti;
-	if (oti != NULL && src_oa->o_valid & OBD_MD_FLCOOKIE)
+	if (oti && src_oa->o_valid & OBD_MD_FLCOOKIE)
 		set->set_cookies = oti->oti_logcookies;
 
 	for (i = 0; i < lsm->lsm_stripe_count; i++) {
@@ -395,7 +392,7 @@ int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo,
 
 		req->rq_oi.oi_oa = kmem_cache_alloc(obdo_cachep,
 						    GFP_NOFS | __GFP_ZERO);
-		if (req->rq_oi.oi_oa == NULL) {
+		if (!req->rq_oi.oi_oa) {
 			kfree(req);
 			rc = -ENOMEM;
 			goto out_set;
@@ -419,7 +416,7 @@ int lov_fini_setattr_set(struct lov_request_set *set)
 {
 	int rc = 0;
 
-	if (set == NULL)
+	if (!set)
 		return 0;
 	LASSERT(set->set_exp);
 	if (atomic_read(&set->set_completes)) {
@@ -460,7 +457,8 @@ int lov_update_setattr_set(struct lov_request_set *set,
 }
 
 /* The callback for osc_setattr_async that finalizes a request info when a
- * response is received. */
+ * response is received.
+ */
 static int cb_setattr_update(void *cookie, int rc)
 {
 	struct obd_info *oinfo = cookie;
@@ -486,7 +484,7 @@ int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo,
 	set->set_exp = exp;
 	set->set_oti = oti;
 	set->set_oi = oinfo;
-	if (oti != NULL && oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE)
+	if (oti && oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE)
 		set->set_cookies = oti->oti_logcookies;
 
 	for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
@@ -511,7 +509,7 @@ int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo,
 
 		req->rq_oi.oi_oa = kmem_cache_alloc(obdo_cachep,
 						    GFP_NOFS | __GFP_ZERO);
-		if (req->rq_oi.oi_oa == NULL) {
+		if (!req->rq_oi.oi_oa) {
 			kfree(req);
 			rc = -ENOMEM;
 			goto out_set;
@@ -581,7 +579,7 @@ int lov_fini_statfs_set(struct lov_request_set *set)
 {
 	int rc = 0;
 
-	if (set == NULL)
+	if (!set)
 		return 0;
 
 	if (atomic_read(&set->set_completes)) {
@@ -648,7 +646,8 @@ static void lov_update_statfs(struct obd_statfs *osfs,
 }
 
 /* The callback for osc_statfs_async that finalizes a request info when a
- * response is received. */
+ * response is received.
+ */
 static int cb_statfs_update(void *cookie, int rc)
 {
 	struct obd_info *oinfo = cookie;
@@ -668,7 +667,8 @@ static int cb_statfs_update(void *cookie, int rc)
 	lov_sfs = oinfo->oi_osfs;
 	success = atomic_read(&set->set_success);
 	/* XXX: the same is done in lov_update_common_set, however
-	   lovset->set_exp is not initialized. */
+	 * lovset->set_exp is not initialized.
+	 */
 	lov_update_set(set, lovreq, rc);
 	if (rc)
 		goto out;
@@ -718,7 +718,7 @@ int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo,
 	for (i = 0; i < lov->desc.ld_tgt_count; i++) {
 		struct lov_request *req;
 
-		if (lov->lov_tgts[i] == NULL ||
+		if (!lov->lov_tgts[i] ||
 		    (!lov_check_and_wait_active(lov, i) &&
 		     (oinfo->oi_flags & OBD_STATFS_NODELAY))) {
 			CDEBUG(D_HA, "lov idx %d inactive\n", i);
@@ -726,7 +726,8 @@ int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo,
 		}
 
 		/* skip targets that have been explicitly disabled by the
-		 * administrator */
+		 * administrator
+		 */
 		if (!lov->lov_tgts[i]->ltd_exp) {
 			CDEBUG(D_HA, "lov idx %d administratively disabled\n", i);
 			continue;
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_dev.c b/drivers/staging/lustre/lustre/lov/lovsub_dev.c
index f1795c3..233740c 100644
--- a/drivers/staging/lustre/lustre/lov/lovsub_dev.c
+++ b/drivers/staging/lustre/lustre/lov/lovsub_dev.c
@@ -101,7 +101,6 @@ static int lovsub_device_init(const struct lu_env *env, struct lu_device *d,
 
 	next->ld_site = d->ld_site;
 	ldt = next->ld_type;
-	LASSERT(ldt != NULL);
 	rc = ldt->ldt_ops->ldto_device_init(env, next, ldt->ldt_name, NULL);
 	if (rc) {
 		next->ld_site = NULL;
@@ -149,7 +148,7 @@ static int lovsub_req_init(const struct lu_env *env, struct cl_device *dev,
 	int result;
 
 	lsr = kmem_cache_alloc(lovsub_req_kmem, GFP_NOFS | __GFP_ZERO);
-	if (lsr != NULL) {
+	if (lsr) {
 		cl_req_slice_add(req, &lsr->lsrq_cl, dev, &lovsub_req_ops);
 		result = 0;
 	} else
@@ -175,7 +174,7 @@ static struct lu_device *lovsub_device_alloc(const struct lu_env *env,
 	struct lovsub_device *lsd;
 
 	lsd = kzalloc(sizeof(*lsd), GFP_NOFS);
-	if (lsd != NULL) {
+	if (lsd) {
 		int result;
 
 		result = cl_device_init(&lsd->acid_cl, t);
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_lock.c b/drivers/staging/lustre/lustre/lov/lovsub_lock.c
index 1a3e30a..0046812 100644
--- a/drivers/staging/lustre/lustre/lov/lovsub_lock.c
+++ b/drivers/staging/lustre/lustre/lov/lovsub_lock.c
@@ -148,7 +148,8 @@ static void lovsub_lock_descr_map(const struct cl_lock_descr *in,
 {
 	pgoff_t size; /* stripe size in pages */
 	pgoff_t skip; /* how many pages in every stripe are occupied by
-		       * "other" stripes */
+		       * "other" stripes
+		       */
 	pgoff_t start;
 	pgoff_t end;
 
@@ -284,7 +285,8 @@ static int lovsub_lock_delete_one(const struct lu_env *env,
 	switch (parent->cll_state) {
 	case CLS_ENQUEUED:
 		/* See LU-1355 for the case that a glimpse lock is
-		 * interrupted by signal */
+		 * interrupted by signal
+		 */
 		LASSERT(parent->cll_flags & CLF_CANCELLED);
 		break;
 	case CLS_QUEUING:
@@ -429,7 +431,7 @@ static int lovsub_lock_print(const struct lu_env *env, void *cookie,
 	list_for_each_entry(scan, &sub->lss_parents, lll_list) {
 		lov = scan->lll_super;
 		(*p)(env, cookie, "[%d %p ", scan->lll_idx, lov);
-		if (lov != NULL)
+		if (lov)
 			cl_lock_descr_print(env, cookie, p,
 					    &lov->lls_cl.cls_lock->cll_descr);
 		(*p)(env, cookie, "] ");
@@ -454,7 +456,7 @@ int lovsub_lock_init(const struct lu_env *env, struct cl_object *obj,
 	int result;
 
 	lsk = kmem_cache_alloc(lovsub_lock_kmem, GFP_NOFS | __GFP_ZERO);
-	if (lsk != NULL) {
+	if (lsk) {
 		INIT_LIST_HEAD(&lsk->lss_parents);
 		cl_lock_slice_add(lock, &lsk->lss_cl, obj, &lovsub_lock_ops);
 		result = 0;
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_object.c b/drivers/staging/lustre/lustre/lov/lovsub_object.c
index 5ba5ee1..0a9bf51 100644
--- a/drivers/staging/lustre/lustre/lov/lovsub_object.c
+++ b/drivers/staging/lustre/lustre/lov/lovsub_object.c
@@ -63,7 +63,7 @@ int lovsub_object_init(const struct lu_env *env, struct lu_object *obj,
 
 	under = &dev->acid_next->cd_lu_dev;
 	below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under);
-	if (below != NULL) {
+	if (below) {
 		lu_object_add(obj, below);
 		cl_object_page_init(lu2cl(obj), sizeof(struct lovsub_page));
 		result = 0;
@@ -144,7 +144,7 @@ struct lu_object *lovsub_object_alloc(const struct lu_env *env,
 	struct lu_object     *obj;
 
 	los = kmem_cache_alloc(lovsub_object_kmem, GFP_NOFS | __GFP_ZERO);
-	if (los != NULL) {
+	if (los) {
 		struct cl_object_header *hdr;
 
 		obj = lovsub2lu(los);
diff --git a/drivers/staging/lustre/lustre/lov/lproc_lov.c b/drivers/staging/lustre/lustre/lov/lproc_lov.c
index 337241d..bb81d04 100644
--- a/drivers/staging/lustre/lustre/lov/lproc_lov.c
+++ b/drivers/staging/lustre/lustre/lov/lproc_lov.c
@@ -46,7 +46,7 @@ static int lov_stripesize_seq_show(struct seq_file *m, void *v)
 	struct obd_device *dev = (struct obd_device *)m->private;
 	struct lov_desc *desc;
 
-	LASSERT(dev != NULL);
+	LASSERT(dev);
 	desc = &dev->u.lov.desc;
 	seq_printf(m, "%llu\n", desc->ld_default_stripe_size);
 	return 0;
@@ -61,7 +61,7 @@ static ssize_t lov_stripesize_seq_write(struct file *file,
 	__u64 val;
 	int rc;
 
-	LASSERT(dev != NULL);
+	LASSERT(dev);
 	desc = &dev->u.lov.desc;
 	rc = lprocfs_write_u64_helper(buffer, count, &val);
 	if (rc)
@@ -79,7 +79,7 @@ static int lov_stripeoffset_seq_show(struct seq_file *m, void *v)
 	struct obd_device *dev = (struct obd_device *)m->private;
 	struct lov_desc *desc;
 
-	LASSERT(dev != NULL);
+	LASSERT(dev);
 	desc = &dev->u.lov.desc;
 	seq_printf(m, "%llu\n", desc->ld_default_stripe_offset);
 	return 0;
@@ -94,7 +94,7 @@ static ssize_t lov_stripeoffset_seq_write(struct file *file,
 	__u64 val;
 	int rc;
 
-	LASSERT(dev != NULL);
+	LASSERT(dev);
 	desc = &dev->u.lov.desc;
 	rc = lprocfs_write_u64_helper(buffer, count, &val);
 	if (rc)
@@ -111,7 +111,7 @@ static int lov_stripetype_seq_show(struct seq_file *m, void *v)
 	struct obd_device *dev = (struct obd_device *)m->private;
 	struct lov_desc *desc;
 
-	LASSERT(dev != NULL);
+	LASSERT(dev);
 	desc = &dev->u.lov.desc;
 	seq_printf(m, "%u\n", desc->ld_pattern);
 	return 0;
@@ -125,7 +125,7 @@ static ssize_t lov_stripetype_seq_write(struct file *file,
 	struct lov_desc *desc;
 	int val, rc;
 
-	LASSERT(dev != NULL);
+	LASSERT(dev);
 	desc = &dev->u.lov.desc;
 	rc = lprocfs_write_helper(buffer, count, &val);
 	if (rc)
@@ -143,7 +143,7 @@ static int lov_stripecount_seq_show(struct seq_file *m, void *v)
 	struct obd_device *dev = (struct obd_device *)m->private;
 	struct lov_desc *desc;
 
-	LASSERT(dev != NULL);
+	LASSERT(dev);
 	desc = &dev->u.lov.desc;
 	seq_printf(m, "%d\n", (__s16)(desc->ld_default_stripe_count + 1) - 1);
 	return 0;
@@ -157,7 +157,7 @@ static ssize_t lov_stripecount_seq_write(struct file *file,
 	struct lov_desc *desc;
 	int val, rc;
 
-	LASSERT(dev != NULL);
+	LASSERT(dev);
 	desc = &dev->u.lov.desc;
 	rc = lprocfs_write_helper(buffer, count, &val);
 	if (rc)
@@ -199,7 +199,7 @@ static int lov_desc_uuid_seq_show(struct seq_file *m, void *v)
 	struct obd_device *dev = (struct obd_device *)m->private;
 	struct lov_obd *lov;
 
-	LASSERT(dev != NULL);
+	LASSERT(dev);
 	lov = &dev->u.lov;
 	seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid);
 	return 0;
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_internal.h b/drivers/staging/lustre/lustre/mdc/mdc_internal.h
index 3d2997a..54f4ca6 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_internal.h
+++ b/drivers/staging/lustre/lustre/mdc/mdc_internal.h
@@ -90,7 +90,7 @@ int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
 		struct ptlrpc_request **req, __u64 extra_lock_flags);
 
 int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
-			    struct list_head *cancels, ldlm_mode_t mode,
+			    struct list_head *cancels, enum ldlm_mode  mode,
 			    __u64 bits);
 /* mdc/mdc_request.c */
 int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
@@ -119,8 +119,8 @@ int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
 int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
 	       struct ptlrpc_request **request);
 int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
-		      ldlm_policy_data_t *policy, ldlm_mode_t mode,
-		      ldlm_cancel_flags_t flags, void *opaque);
+		      ldlm_policy_data_t *policy, enum ldlm_mode mode,
+		      enum ldlm_cancel_flags flags, void *opaque);
 
 int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
 			struct lu_fid *fid, __u64 *bits);
@@ -129,10 +129,10 @@ int mdc_intent_getattr_async(struct obd_export *exp,
 			     struct md_enqueue_info *minfo,
 			     struct ldlm_enqueue_info *einfo);
 
-ldlm_mode_t mdc_lock_match(struct obd_export *exp, __u64 flags,
-			   const struct lu_fid *fid, ldlm_type_t type,
-			   ldlm_policy_data_t *policy, ldlm_mode_t mode,
-			   struct lustre_handle *lockh);
+enum ldlm_mode mdc_lock_match(struct obd_export *exp, __u64 flags,
+			      const struct lu_fid *fid, enum ldlm_type type,
+			      ldlm_policy_data_t *policy, enum ldlm_mode mode,
+			      struct lustre_handle *lockh);
 
 static inline int mdc_prep_elc_req(struct obd_export *exp,
 				   struct ptlrpc_request *req, int opc,
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_lib.c b/drivers/staging/lustre/lustre/mdc/mdc_lib.c
index 7218532..b3bfdcb 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_lib.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_lib.c
@@ -41,8 +41,6 @@
 
 static void __mdc_pack_body(struct mdt_body *b, __u32 suppgid)
 {
-	LASSERT(b != NULL);
-
 	b->suppgid = suppgid;
 	b->uid = from_kuid(&init_user_ns, current_uid());
 	b->gid = from_kgid(&init_user_ns, current_gid());
@@ -83,7 +81,6 @@ void mdc_pack_body(struct ptlrpc_request *req, const struct lu_fid *fid,
 {
 	struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
 						    &RMF_MDT_BODY);
-	LASSERT(b != NULL);
 	b->valid = valid;
 	b->eadatasize = ea_size;
 	b->flags = flags;
@@ -323,7 +320,7 @@ void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
 		return;
 
 	lum = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
-	if (ea == NULL) { /* Remove LOV EA */
+	if (!ea) { /* Remove LOV EA */
 		lum->lmm_magic = LOV_USER_MAGIC_V1;
 		lum->lmm_stripe_size = 0;
 		lum->lmm_stripe_count = 0;
@@ -346,7 +343,6 @@ void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
 
 	CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_unlink));
 	rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
-	LASSERT(rec != NULL);
 
 	rec->ul_opcode   = op_data->op_cli_flags & CLI_RM_ENTRY ?
 					REINT_RMENTRY : REINT_UNLINK;
@@ -362,7 +358,7 @@ void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
 	rec->ul_bias     = op_data->op_bias;
 
 	tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
-	LASSERT(tmp != NULL);
+	LASSERT(tmp);
 	LOGL0(op_data->op_name, op_data->op_namelen, tmp);
 }
 
@@ -373,7 +369,6 @@ void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
 
 	CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_link));
 	rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
-	LASSERT(rec != NULL);
 
 	rec->lk_opcode   = REINT_LINK;
 	rec->lk_fsuid    = op_data->op_fsuid; /* current->fsuid; */
@@ -456,10 +451,9 @@ static void mdc_hsm_release_pack(struct ptlrpc_request *req,
 		struct ldlm_lock *lock;
 
 		data = req_capsule_client_get(&req->rq_pill, &RMF_CLOSE_DATA);
-		LASSERT(data != NULL);
 
 		lock = ldlm_handle2lock(&op_data->op_lease_handle);
-		if (lock != NULL) {
+		if (lock) {
 			data->cd_handle = lock->l_remote_handle;
 			ldlm_lock_put(lock);
 		}
@@ -495,7 +489,8 @@ static int mdc_req_avail(struct client_obd *cli, struct mdc_cache_waiter *mcw)
 
 /* We record requests in flight in cli->cl_r_in_flight here.
  * There is only one write rpc possible in mdc anyway. If this to change
- * in the future - the code may need to be revisited. */
+ * in the future - the code may need to be revisited.
+ */
 int mdc_enter_request(struct client_obd *cli)
 {
 	int rc = 0;
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_locks.c b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
index ef9a1e1..6dae574 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
@@ -129,7 +129,7 @@ int mdc_set_lock_data(struct obd_export *exp, __u64 *lockh, void *data,
 
 	lock = ldlm_handle2lock((struct lustre_handle *)lockh);
 
-	LASSERT(lock != NULL);
+	LASSERT(lock);
 	lock_res_and_lock(lock);
 	if (lock->l_resource->lr_lvb_inode &&
 	    lock->l_resource->lr_lvb_inode != data) {
@@ -151,13 +151,13 @@ int mdc_set_lock_data(struct obd_export *exp, __u64 *lockh, void *data,
 	return 0;
 }
 
-ldlm_mode_t mdc_lock_match(struct obd_export *exp, __u64 flags,
-			   const struct lu_fid *fid, ldlm_type_t type,
-			   ldlm_policy_data_t *policy, ldlm_mode_t mode,
-			   struct lustre_handle *lockh)
+enum ldlm_mode mdc_lock_match(struct obd_export *exp, __u64 flags,
+			      const struct lu_fid *fid, enum ldlm_type type,
+			      ldlm_policy_data_t *policy, enum ldlm_mode mode,
+			      struct lustre_handle *lockh)
 {
 	struct ldlm_res_id res_id;
-	ldlm_mode_t rc;
+	enum ldlm_mode rc;
 
 	fid_build_reg_res_name(fid, &res_id);
 	/* LU-4405: Clear bits not supported by server */
@@ -170,8 +170,8 @@ ldlm_mode_t mdc_lock_match(struct obd_export *exp, __u64 flags,
 int mdc_cancel_unused(struct obd_export *exp,
 		      const struct lu_fid *fid,
 		      ldlm_policy_data_t *policy,
-		      ldlm_mode_t mode,
-		      ldlm_cancel_flags_t flags,
+		      enum ldlm_mode mode,
+		      enum ldlm_cancel_flags flags,
 		      void *opaque)
 {
 	struct ldlm_res_id res_id;
@@ -191,12 +191,12 @@ int mdc_null_inode(struct obd_export *exp,
 	struct ldlm_resource *res;
 	struct ldlm_namespace *ns = class_exp2obd(exp)->obd_namespace;
 
-	LASSERTF(ns != NULL, "no namespace passed\n");
+	LASSERTF(ns, "no namespace passed\n");
 
 	fid_build_reg_res_name(fid, &res_id);
 
 	res = ldlm_resource_get(ns, NULL, &res_id, 0, 0);
-	if (res == NULL)
+	if (!res)
 		return 0;
 
 	lock_res(res);
@@ -210,7 +210,8 @@ int mdc_null_inode(struct obd_export *exp,
 /* find any ldlm lock of the inode in mdc
  * return 0    not find
  *	1    find one
- *      < 0    error */
+ *      < 0    error
+ */
 int mdc_find_cbdata(struct obd_export *exp,
 		    const struct lu_fid *fid,
 		    ldlm_iterator_t it, void *data)
@@ -252,7 +253,8 @@ static inline void mdc_clear_replay_flag(struct ptlrpc_request *req, int rc)
  * OOM here may cause recovery failure if lmm is needed (only for the
  * original open if the MDS crashed just when this client also OOM'd)
  * but this is incredibly unlikely, and questionable whether the client
- * could do MDS recovery under OOM anyways... */
+ * could do MDS recovery under OOM anyways...
+ */
 static void mdc_realloc_openmsg(struct ptlrpc_request *req,
 				struct mdt_body *body)
 {
@@ -317,7 +319,7 @@ static struct ptlrpc_request *mdc_intent_open_pack(struct obd_export *exp,
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_LDLM_INTENT_OPEN);
-	if (req == NULL) {
+	if (!req) {
 		ldlm_lock_list_put(&cancels, l_bl_ast, count);
 		return ERR_PTR(-ENOMEM);
 	}
@@ -365,7 +367,7 @@ mdc_intent_getxattr_pack(struct obd_export *exp,
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 					&RQF_LDLM_INTENT_GETXATTR);
-	if (req == NULL)
+	if (!req)
 		return ERR_PTR(-ENOMEM);
 
 	rc = ldlm_prep_enqueue_req(exp, req, &cancels, count);
@@ -409,7 +411,7 @@ static struct ptlrpc_request *mdc_intent_unlink_pack(struct obd_export *exp,
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_LDLM_INTENT_UNLINK);
-	if (req == NULL)
+	if (!req)
 		return ERR_PTR(-ENOMEM);
 
 	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
@@ -453,7 +455,7 @@ static struct ptlrpc_request *mdc_intent_getattr_pack(struct obd_export *exp,
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_LDLM_INTENT_GETATTR);
-	if (req == NULL)
+	if (!req)
 		return ERR_PTR(-ENOMEM);
 
 	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
@@ -497,7 +499,7 @@ static struct ptlrpc_request *mdc_intent_layout_pack(struct obd_export *exp,
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				&RQF_LDLM_INTENT_LAYOUT);
-	if (req == NULL)
+	if (!req)
 		return ERR_PTR(-ENOMEM);
 
 	req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT, 0);
@@ -514,7 +516,8 @@ static struct ptlrpc_request *mdc_intent_layout_pack(struct obd_export *exp,
 	/* pack the layout intent request */
 	layout = req_capsule_client_get(&req->rq_pill, &RMF_LAYOUT_INTENT);
 	/* LAYOUT_INTENT_ACCESS is generic, specific operation will be
-	 * set for replication */
+	 * set for replication
+	 */
 	layout->li_opc = LAYOUT_INTENT_ACCESS;
 
 	req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER,
@@ -530,7 +533,7 @@ mdc_enqueue_pack(struct obd_export *exp, int lvb_len)
 	int rc;
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_LDLM_ENQUEUE);
-	if (req == NULL)
+	if (!req)
 		return ERR_PTR(-ENOMEM);
 
 	rc = ldlm_prep_enqueue_req(exp, req, NULL, 0);
@@ -561,7 +564,8 @@ static int mdc_finish_enqueue(struct obd_export *exp,
 
 	LASSERT(rc >= 0);
 	/* Similarly, if we're going to replay this request, we don't want to
-	 * actually get a lock, just perform the intent. */
+	 * actually get a lock, just perform the intent.
+	 */
 	if (req->rq_transno || req->rq_replay) {
 		lockreq = req_capsule_client_get(pill, &RMF_DLM_REQ);
 		lockreq->lock_flags |= ldlm_flags_to_wire(LDLM_FL_INTENT_ONLY);
@@ -573,10 +577,10 @@ static int mdc_finish_enqueue(struct obd_export *exp,
 		rc = 0;
 	} else { /* rc = 0 */
 		lock = ldlm_handle2lock(lockh);
-		LASSERT(lock != NULL);
 
 		/* If the server gave us back a different lock mode, we should
-		 * fix up our variables. */
+		 * fix up our variables.
+		 */
 		if (lock->l_req_mode != einfo->ei_mode) {
 			ldlm_lock_addref(lockh, lock->l_req_mode);
 			ldlm_lock_decref(lockh, einfo->ei_mode);
@@ -586,7 +590,6 @@ static int mdc_finish_enqueue(struct obd_export *exp,
 	}
 
 	lockrep = req_capsule_server_get(pill, &RMF_DLM_REP);
-	LASSERT(lockrep != NULL); /* checked by ldlm_cli_enqueue() */
 
 	intent->it_disposition = (int)lockrep->lock_policy_res1;
 	intent->it_status = (int)lockrep->lock_policy_res2;
@@ -595,7 +598,8 @@ static int mdc_finish_enqueue(struct obd_export *exp,
 	intent->it_data = req;
 
 	/* Technically speaking rq_transno must already be zero if
-	 * it_status is in error, so the check is a bit redundant */
+	 * it_status is in error, so the check is a bit redundant
+	 */
 	if ((!req->rq_transno || intent->it_status < 0) && req->rq_replay)
 		mdc_clear_replay_flag(req, intent->it_status);
 
@@ -605,7 +609,8 @@ static int mdc_finish_enqueue(struct obd_export *exp,
 	 *
 	 * It's important that we do this first!  Otherwise we might exit the
 	 * function without doing so, and try to replay a failed create
-	 * (bug 3440) */
+	 * (bug 3440)
+	 */
 	if (it->it_op & IT_OPEN && req->rq_replay &&
 	    (!it_disposition(it, DISP_OPEN_OPEN) || intent->it_status != 0))
 		mdc_clear_replay_flag(req, intent->it_status);
@@ -618,7 +623,7 @@ static int mdc_finish_enqueue(struct obd_export *exp,
 		struct mdt_body *body;
 
 		body = req_capsule_server_get(pill, &RMF_MDT_BODY);
-		if (body == NULL) {
+		if (!body) {
 			CERROR("Can't swab mdt_body\n");
 			return -EPROTO;
 		}
@@ -645,11 +650,12 @@ static int mdc_finish_enqueue(struct obd_export *exp,
 			 */
 			eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
 							      body->eadatasize);
-			if (eadata == NULL)
+			if (!eadata)
 				return -EPROTO;
 
 			/* save lvb data and length in case this is for layout
-			 * lock */
+			 * lock
+			 */
 			lvb_data = eadata;
 			lvb_len = body->eadatasize;
 
@@ -690,31 +696,32 @@ static int mdc_finish_enqueue(struct obd_export *exp,
 			LASSERT(client_is_remote(exp));
 			perm = req_capsule_server_swab_get(pill, &RMF_ACL,
 						lustre_swab_mdt_remote_perm);
-			if (perm == NULL)
+			if (!perm)
 				return -EPROTO;
 		}
 	} else if (it->it_op & IT_LAYOUT) {
 		/* maybe the lock was granted right away and layout
-		 * is packed into RMF_DLM_LVB of req */
+		 * is packed into RMF_DLM_LVB of req
+		 */
 		lvb_len = req_capsule_get_size(pill, &RMF_DLM_LVB, RCL_SERVER);
 		if (lvb_len > 0) {
 			lvb_data = req_capsule_server_sized_get(pill,
 							&RMF_DLM_LVB, lvb_len);
-			if (lvb_data == NULL)
+			if (!lvb_data)
 				return -EPROTO;
 		}
 	}
 
 	/* fill in stripe data for layout lock */
 	lock = ldlm_handle2lock(lockh);
-	if (lock != NULL && ldlm_has_layout(lock) && lvb_data != NULL) {
+	if (lock && ldlm_has_layout(lock) && lvb_data) {
 		void *lmm;
 
 		LDLM_DEBUG(lock, "layout lock returned by: %s, lvb_len: %d\n",
 			ldlm_it2str(it->it_op), lvb_len);
 
 		lmm = libcfs_kvzalloc(lvb_len, GFP_NOFS);
-		if (lmm == NULL) {
+		if (!lmm) {
 			LDLM_LOCK_PUT(lock);
 			return -ENOMEM;
 		}
@@ -722,24 +729,25 @@ static int mdc_finish_enqueue(struct obd_export *exp,
 
 		/* install lvb_data */
 		lock_res_and_lock(lock);
-		if (lock->l_lvb_data == NULL) {
+		if (!lock->l_lvb_data) {
 			lock->l_lvb_type = LVB_T_LAYOUT;
 			lock->l_lvb_data = lmm;
 			lock->l_lvb_len = lvb_len;
 			lmm = NULL;
 		}
 		unlock_res_and_lock(lock);
-		if (lmm != NULL)
+		if (lmm)
 			kvfree(lmm);
 	}
-	if (lock != NULL)
+	if (lock)
 		LDLM_LOCK_PUT(lock);
 
 	return rc;
 }
 
 /* We always reserve enough space in the reply packet for a stripe MD, because
- * we don't know in advance the file type. */
+ * we don't know in advance the file type.
+ */
 int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
 		struct lookup_intent *it, struct md_op_data *op_data,
 		struct lustre_handle *lockh, void *lmm, int lmmsize,
@@ -782,14 +790,15 @@ int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
 			policy = &getxattr_policy;
 	}
 
-	LASSERT(reqp == NULL);
+	LASSERT(!reqp);
 
 	generation = obddev->u.cli.cl_import->imp_generation;
 resend:
 	flags = saved_flags;
 	if (!it) {
 		/* The only way right now is FLOCK, in this case we hide flock
-		   policy as lmm, but lmmsize is 0 */
+		 * policy as lmm, but lmmsize is 0
+		 */
 		LASSERT(lmm && lmmsize == 0);
 		LASSERTF(einfo->ei_type == LDLM_FLOCK, "lock type %d\n",
 			 einfo->ei_type);
@@ -823,9 +832,10 @@ resend:
 	if (IS_ERR(req))
 		return PTR_ERR(req);
 
-	if (req != NULL && it && it->it_op & IT_CREAT)
+	if (req && it && it->it_op & IT_CREAT)
 		/* ask ptlrpc not to resend on EINPROGRESS since we have our own
-		 * retry logic */
+		 * retry logic
+		 */
 		req->rq_no_retry_einprogress = 1;
 
 	if (resends) {
@@ -836,7 +846,8 @@ resend:
 
 	/* It is important to obtain rpc_lock first (if applicable), so that
 	 * threads that are serialised with rpc_lock are not polluting our
-	 * rpcs in flight counter. We do not do flock request limiting, though*/
+	 * rpcs in flight counter. We do not do flock request limiting, though
+	 */
 	if (it) {
 		mdc_get_rpc_lock(obddev->u.cli.cl_rpc_lock, it);
 		rc = mdc_enter_request(&obddev->u.cli);
@@ -852,13 +863,14 @@ resend:
 			      0, lvb_type, lockh, 0);
 	if (!it) {
 		/* For flock requests we immediately return without further
-		   delay and let caller deal with the rest, since rest of
-		   this function metadata processing makes no sense for flock
-		   requests anyway. But in case of problem during comms with
-		   Server (ETIMEDOUT) or any signal/kill attempt (EINTR), we
-		   can not rely on caller and this mainly for F_UNLCKs
-		   (explicits or automatically generated by Kernel to clean
-		   current FLocks upon exit) that can't be trashed */
+		 * delay and let caller deal with the rest, since rest of
+		 * this function metadata processing makes no sense for flock
+		 * requests anyway. But in case of problem during comms with
+		 * Server (ETIMEDOUT) or any signal/kill attempt (EINTR), we
+		 * can not rely on caller and this mainly for F_UNLCKs
+		 * (explicits or automatically generated by Kernel to clean
+		 * current FLocks upon exit) that can't be trashed
+		 */
 		if ((rc == -EINTR) || (rc == -ETIMEDOUT))
 			goto resend;
 		return rc;
@@ -878,13 +890,13 @@ resend:
 	}
 
 	lockrep = req_capsule_server_get(&req->rq_pill, &RMF_DLM_REP);
-	LASSERT(lockrep != NULL);
 
 	lockrep->lock_policy_res2 =
 		ptlrpc_status_ntoh(lockrep->lock_policy_res2);
 
 	/* Retry the create infinitely when we get -EINPROGRESS from
-	 * server. This is required by the new quota design. */
+	 * server. This is required by the new quota design.
+	 */
 	if (it->it_op & IT_CREAT &&
 	    (int)lockrep->lock_policy_res2 == -EINPROGRESS) {
 		mdc_clear_replay_flag(req, rc);
@@ -930,13 +942,13 @@ static int mdc_finish_intent_lock(struct obd_export *exp,
 	struct ldlm_lock *lock;
 	int rc;
 
-	LASSERT(request != NULL);
 	LASSERT(request != LP_POISON);
 	LASSERT(request->rq_repmsg != LP_POISON);
 
 	if (!it_disposition(it, DISP_IT_EXECD)) {
 		/* The server failed before it even started executing the
-		 * intent, i.e. because it couldn't unpack the request. */
+		 * intent, i.e. because it couldn't unpack the request.
+		 */
 		LASSERT(it->d.lustre.it_status != 0);
 		return it->d.lustre.it_status;
 	}
@@ -945,10 +957,11 @@ static int mdc_finish_intent_lock(struct obd_export *exp,
 		return rc;
 
 	mdt_body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY);
-	LASSERT(mdt_body != NULL);      /* mdc_enqueue checked */
+	LASSERT(mdt_body);      /* mdc_enqueue checked */
 
 	/* If we were revalidating a fid/name pair, mark the intent in
-	 * case we fail and get called again from lookup */
+	 * case we fail and get called again from lookup
+	 */
 	if (fid_is_sane(&op_data->op_fid2) &&
 	    it->it_create_mode & M_CHECK_STALE &&
 	    it->it_op != IT_GETATTR) {
@@ -957,7 +970,8 @@ static int mdc_finish_intent_lock(struct obd_export *exp,
 		/* sever can return one of two fids:
 		 * op_fid2 - new allocated fid - if file is created.
 		 * op_fid3 - existent fid - if file only open.
-		 * op_fid3 is saved in lmv_intent_open */
+		 * op_fid3 is saved in lmv_intent_open
+		 */
 		if ((!lu_fid_eq(&op_data->op_fid2, &mdt_body->fid1)) &&
 		    (!lu_fid_eq(&op_data->op_fid3, &mdt_body->fid1))) {
 			CDEBUG(D_DENTRY, "Found stale data "DFID"("DFID")/"DFID
@@ -1001,7 +1015,8 @@ static int mdc_finish_intent_lock(struct obd_export *exp,
 	 * one.  We have to set the data here instead of in
 	 * mdc_enqueue, because we need to use the child's inode as
 	 * the l_ast_data to match, and that's not available until
-	 * intent_finish has performed the iget().) */
+	 * intent_finish has performed the iget().)
+	 */
 	lock = ldlm_handle2lock(lockh);
 	if (lock) {
 		ldlm_policy_data_t policy = lock->l_policy_data;
@@ -1036,11 +1051,12 @@ int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
 {
 	/* We could just return 1 immediately, but since we should only
 	 * be called in revalidate_it if we already have a lock, let's
-	 * verify that. */
+	 * verify that.
+	 */
 	struct ldlm_res_id res_id;
 	struct lustre_handle lockh;
 	ldlm_policy_data_t policy;
-	ldlm_mode_t mode;
+	enum ldlm_mode mode;
 
 	if (it->d.lustre.it_lock_handle) {
 		lockh.cookie = it->d.lustre.it_lock_handle;
@@ -1059,10 +1075,12 @@ int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
 			 * Unfortunately, if the bits are split across multiple
 			 * locks, there's no easy way to match all of them here,
 			 * so an extra RPC would be performed to fetch all
-			 * of those bits at once for now. */
+			 * of those bits at once for now.
+			 */
 			/* For new MDTs(> 2.4), UPDATE|PERM should be enough,
 			 * but for old MDTs (< 2.4), permission is covered
-			 * by LOOKUP lock, so it needs to match all bits here.*/
+			 * by LOOKUP lock, so it needs to match all bits here.
+			 */
 			policy.l_inodebits.bits = MDS_INODELOCK_UPDATE |
 						  MDS_INODELOCK_LOOKUP |
 						  MDS_INODELOCK_PERM;
@@ -1147,11 +1165,13 @@ int mdc_intent_lock(struct obd_export *exp, struct md_op_data *op_data,
 	    (it->it_op & (IT_LOOKUP | IT_GETATTR))) {
 		/* We could just return 1 immediately, but since we should only
 		 * be called in revalidate_it if we already have a lock, let's
-		 * verify that. */
+		 * verify that.
+		 */
 		it->d.lustre.it_lock_handle = 0;
 		rc = mdc_revalidate_lock(exp, it, &op_data->op_fid2, NULL);
 		/* Only return failure if it was not GETATTR by cfid
-		   (from inode_revalidate) */
+		 * (from inode_revalidate)
+		 */
 		if (rc || op_data->op_namelen != 0)
 			return rc;
 	}
@@ -1206,7 +1226,6 @@ static int mdc_intent_getattr_async_interpret(const struct lu_env *env,
 	}
 
 	lockrep = req_capsule_server_get(&req->rq_pill, &RMF_DLM_REP);
-	LASSERT(lockrep != NULL);
 
 	lockrep->lock_policy_res2 =
 		ptlrpc_status_ntoh(lockrep->lock_policy_res2);
@@ -1235,7 +1254,8 @@ int mdc_intent_getattr_async(struct obd_export *exp,
 	struct ldlm_res_id       res_id;
 	/*XXX: Both MDS_INODELOCK_LOOKUP and MDS_INODELOCK_UPDATE are needed
 	 *     for statahead currently. Consider CMD in future, such two bits
-	 *     maybe managed by different MDS, should be adjusted then. */
+	 *     maybe managed by different MDS, should be adjusted then.
+	 */
 	ldlm_policy_data_t       policy = {
 					.l_inodebits = { MDS_INODELOCK_LOOKUP |
 							 MDS_INODELOCK_UPDATE }
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_reint.c b/drivers/staging/lustre/lustre/mdc/mdc_reint.c
index ac7695a..019b237 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_reint.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_reint.c
@@ -65,9 +65,10 @@ static int mdc_reint(struct ptlrpc_request *request,
 
 /* Find and cancel locally locks matched by inode @bits & @mode in the resource
  * found by @fid. Found locks are added into @cancel list. Returns the amount of
- * locks added to @cancels list. */
+ * locks added to @cancels list.
+ */
 int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
-			    struct list_head *cancels, ldlm_mode_t mode,
+			    struct list_head *cancels, enum ldlm_mode mode,
 			    __u64 bits)
 {
 	struct ldlm_namespace *ns = exp->exp_obd->obd_namespace;
@@ -81,14 +82,15 @@ int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
 	 *
 	 * This distinguishes from a case when ELC is not supported originally,
 	 * when we still want to cancel locks in advance and just cancel them
-	 * locally, without sending any RPC. */
+	 * locally, without sending any RPC.
+	 */
 	if (exp_connect_cancelset(exp) && !ns_connect_cancelset(ns))
 		return 0;
 
 	fid_build_reg_res_name(fid, &res_id);
 	res = ldlm_resource_get(exp->exp_obd->obd_namespace,
 				NULL, &res_id, 0, 0);
-	if (res == NULL)
+	if (!res)
 		return 0;
 	LDLM_RESOURCE_ADDREF(res);
 	/* Initialize ibits lock policy. */
@@ -111,8 +113,6 @@ int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
 	int count = 0, rc;
 	__u64 bits;
 
-	LASSERT(op_data != NULL);
-
 	bits = MDS_INODELOCK_UPDATE;
 	if (op_data->op_attr.ia_valid & (ATTR_MODE|ATTR_UID|ATTR_GID))
 		bits |= MDS_INODELOCK_LOOKUP;
@@ -123,7 +123,7 @@ int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
 						&cancels, LCK_EX, bits);
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_MDS_REINT_SETATTR);
-	if (req == NULL) {
+	if (!req) {
 		ldlm_lock_list_put(&cancels, l_bl_ast, count);
 		return -ENOMEM;
 	}
@@ -151,10 +151,10 @@ int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
 	ptlrpc_request_set_replen(req);
 	if (mod && (op_data->op_flags & MF_EPOCH_OPEN) &&
 	    req->rq_import->imp_replayable) {
-		LASSERT(*mod == NULL);
+		LASSERT(!*mod);
 
 		*mod = obd_mod_alloc();
-		if (*mod == NULL) {
+		if (!*mod) {
 			DEBUG_REQ(D_ERROR, req, "Can't allocate md_open_data");
 		} else {
 			req->rq_replay = 1;
@@ -181,8 +181,6 @@ int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
 
 		epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
 		body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-		LASSERT(epoch != NULL);
-		LASSERT(body != NULL);
 		epoch->handle = body->handle;
 		epoch->ioepoch = body->ioepoch;
 		req->rq_replay_cb = mdc_replay_open;
@@ -195,7 +193,7 @@ int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
 	*request = req;
 	if (rc && req->rq_commit_cb) {
 		/* Put an extra reference on \var mod on error case. */
-		if (mod != NULL && *mod != NULL)
+		if (mod && *mod)
 			obd_mod_put(*mod);
 		req->rq_commit_cb(req);
 	}
@@ -237,7 +235,7 @@ rebuild:
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_MDS_REINT_CREATE_RMT_ACL);
-	if (req == NULL) {
+	if (!req) {
 		ldlm_lock_list_put(&cancels, l_bl_ast, count);
 		return -ENOMEM;
 	}
@@ -262,7 +260,8 @@ rebuild:
 	ptlrpc_request_set_replen(req);
 
 	/* ask ptlrpc not to resend on EINPROGRESS since we have our own retry
-	 * logic here */
+	 * logic here
+	 */
 	req->rq_no_retry_einprogress = 1;
 
 	if (resends) {
@@ -280,7 +279,8 @@ rebuild:
 		goto resend;
 	} else if (rc == -EINPROGRESS) {
 		/* Retry create infinitely until succeed or get other
-		 * error code. */
+		 * error code.
+		 */
 		ptlrpc_req_finished(req);
 		resends++;
 
@@ -308,7 +308,7 @@ int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
 	struct ptlrpc_request *req = *request;
 	int count = 0, rc;
 
-	LASSERT(req == NULL);
+	LASSERT(!req);
 
 	if ((op_data->op_flags & MF_MDC_CANCEL_FID1) &&
 	    (fid_is_sane(&op_data->op_fid1)) &&
@@ -324,7 +324,7 @@ int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
 						 MDS_INODELOCK_FULL);
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_MDS_REINT_UNLINK);
-	if (req == NULL) {
+	if (!req) {
 		ldlm_lock_list_put(&cancels, l_bl_ast, count);
 		return -ENOMEM;
 	}
@@ -373,7 +373,7 @@ int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
 						 MDS_INODELOCK_UPDATE);
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_REINT_LINK);
-	if (req == NULL) {
+	if (!req) {
 		ldlm_lock_list_put(&cancels, l_bl_ast, count);
 		return -ENOMEM;
 	}
@@ -429,7 +429,7 @@ int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_MDS_REINT_RENAME);
-	if (req == NULL) {
+	if (!req) {
 		ldlm_lock_list_put(&cancels, l_bl_ast, count);
 		return -ENOMEM;
 	}
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c
index 4348127..c7a0fa1 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_request.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c
@@ -63,7 +63,8 @@ static inline int mdc_queue_wait(struct ptlrpc_request *req)
 
 	/* mdc_enter_request() ensures that this client has no more
 	 * than cl_max_rpcs_in_flight RPCs simultaneously inf light
-	 * against an MDT. */
+	 * against an MDT.
+	 */
 	rc = mdc_enter_request(cli);
 	if (rc != 0)
 		return rc;
@@ -83,7 +84,7 @@ static int mdc_getstatus(struct obd_export *exp, struct lu_fid *rootfid)
 	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
 					&RQF_MDS_GETSTATUS,
 					LUSTRE_MDS_VERSION, MDS_GETSTATUS);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	mdc_pack_body(req, NULL, 0, 0, -1, 0);
@@ -96,7 +97,7 @@ static int mdc_getstatus(struct obd_export *exp, struct lu_fid *rootfid)
 		goto out;
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL) {
+	if (!body) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -136,7 +137,7 @@ static int mdc_getattr_common(struct obd_export *exp,
 
 	/* sanity check for the reply */
 	body = req_capsule_server_get(pill, &RMF_MDT_BODY);
-	if (body == NULL)
+	if (!body)
 		return -EPROTO;
 
 	CDEBUG(D_NET, "mode: %o\n", body->mode);
@@ -146,7 +147,7 @@ static int mdc_getattr_common(struct obd_export *exp,
 
 		eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
 						      body->eadatasize);
-		if (eadata == NULL)
+		if (!eadata)
 			return -EPROTO;
 	}
 
@@ -156,7 +157,7 @@ static int mdc_getattr_common(struct obd_export *exp,
 		LASSERT(client_is_remote(exp));
 		perm = req_capsule_server_swab_get(pill, &RMF_ACL,
 						lustre_swab_mdt_remote_perm);
-		if (perm == NULL)
+		if (!perm)
 			return -EPROTO;
 	}
 
@@ -176,7 +177,7 @@ static int mdc_getattr(struct obd_export *exp, struct md_op_data *op_data,
 	}
 	*request = NULL;
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
@@ -214,7 +215,7 @@ static int mdc_getattr_name(struct obd_export *exp, struct md_op_data *op_data,
 	*request = NULL;
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_MDS_GETATTR_NAME);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
@@ -261,7 +262,7 @@ static int mdc_is_subdir(struct obd_export *exp,
 	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
 					&RQF_MDS_IS_SUBDIR, LUSTRE_MDS_VERSION,
 					MDS_IS_SUBDIR);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	mdc_is_subdir_pack(req, pfid, cfid, 0);
@@ -290,7 +291,7 @@ static int mdc_xattr_common(struct obd_export *exp,
 
 	*request = NULL;
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), fmt);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	if (xattr_name) {
@@ -425,7 +426,7 @@ static int mdc_unpack_acl(struct ptlrpc_request *req, struct lustre_md *md)
 		return -EPROTO;
 
 	acl = posix_acl_from_xattr(&init_user_ns, buf, body->aclsize);
-	if (acl == NULL)
+	if (!acl)
 		return 0;
 
 	if (IS_ERR(acl)) {
@@ -461,7 +462,6 @@ static int mdc_get_lustre_md(struct obd_export *exp,
 	memset(md, 0, sizeof(*md));
 
 	md->body = req_capsule_server_get(pill, &RMF_MDT_BODY);
-	LASSERT(md->body != NULL);
 
 	if (md->body->valid & OBD_MD_FLEASIZE) {
 		int lmmsize;
@@ -593,17 +593,16 @@ void mdc_replay_open(struct ptlrpc_request *req)
 	struct lustre_handle old;
 	struct mdt_body *body;
 
-	if (mod == NULL) {
+	if (!mod) {
 		DEBUG_REQ(D_ERROR, req,
 			  "Can't properly replay without open data.");
 		return;
 	}
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	LASSERT(body != NULL);
 
 	och = mod->mod_och;
-	if (och != NULL) {
+	if (och) {
 		struct lustre_handle *file_fh;
 
 		LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC);
@@ -615,7 +614,7 @@ void mdc_replay_open(struct ptlrpc_request *req)
 		*file_fh = body->handle;
 	}
 	close_req = mod->mod_close_req;
-	if (close_req != NULL) {
+	if (close_req) {
 		__u32 opc = lustre_msg_get_opc(close_req->rq_reqmsg);
 		struct mdt_ioepoch *epoch;
 
@@ -624,7 +623,7 @@ void mdc_replay_open(struct ptlrpc_request *req)
 					       &RMF_MDT_EPOCH);
 		LASSERT(epoch);
 
-		if (och != NULL)
+		if (och)
 			LASSERT(!memcmp(&old, &epoch->handle, sizeof(old)));
 		DEBUG_REQ(D_HA, close_req, "updating close body with new fh");
 		epoch->handle = body->handle;
@@ -635,7 +634,7 @@ void mdc_commit_open(struct ptlrpc_request *req)
 {
 	struct md_open_data *mod = req->rq_cb_data;
 
-	if (mod == NULL)
+	if (!mod)
 		return;
 
 	/**
@@ -675,15 +674,15 @@ int mdc_set_open_replay_data(struct obd_export *exp,
 
 	rec = req_capsule_client_get(&open_req->rq_pill, &RMF_REC_REINT);
 	body = req_capsule_server_get(&open_req->rq_pill, &RMF_MDT_BODY);
-	LASSERT(rec != NULL);
+	LASSERT(rec);
 	/* Incoming message in my byte order (it's been swabbed). */
 	/* Outgoing messages always in my byte order. */
-	LASSERT(body != NULL);
+	LASSERT(body);
 
 	/* Only if the import is replayable, we set replay_open data */
 	if (och && imp->imp_replayable) {
 		mod = obd_mod_alloc();
-		if (mod == NULL) {
+		if (!mod) {
 			DEBUG_REQ(D_ERROR, open_req,
 				  "Can't allocate md_open_data");
 			return 0;
@@ -749,11 +748,11 @@ static int mdc_clear_open_replay_data(struct obd_export *exp,
 	 * It is possible to not have \var mod in a case of eviction between
 	 * lookup and ll_file_open().
 	 **/
-	if (mod == NULL)
+	if (!mod)
 		return 0;
 
 	LASSERT(mod != LP_POISON);
-	LASSERT(mod->mod_open_req != NULL);
+	LASSERT(mod->mod_open_req);
 	mdc_free_open(mod);
 
 	mod->mod_och = NULL;
@@ -804,7 +803,7 @@ static int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
 
 	*request = NULL;
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), req_fmt);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_CLOSE);
@@ -815,13 +814,14 @@ static int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
 
 	/* To avoid a livelock (bug 7034), we need to send CLOSE RPCs to a
 	 * portal whose threads are not taking any DLM locks and are therefore
-	 * always progressing */
+	 * always progressing
+	 */
 	req->rq_request_portal = MDS_READPAGE_PORTAL;
 	ptlrpc_at_set_req_timeout(req);
 
 	/* Ensure that this close's handle is fixed up during replay. */
-	if (likely(mod != NULL)) {
-		LASSERTF(mod->mod_open_req != NULL &&
+	if (likely(mod)) {
+		LASSERTF(mod->mod_open_req &&
 			 mod->mod_open_req->rq_type != LI_POISON,
 			 "POISONED open %p!\n", mod->mod_open_req);
 
@@ -829,7 +829,8 @@ static int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
 
 		DEBUG_REQ(D_HA, mod->mod_open_req, "matched open");
 		/* We no longer want to preserve this open for replay even
-		 * though the open was committed. b=3632, b=3633 */
+		 * though the open was committed. b=3632, b=3633
+		 */
 		spin_lock(&mod->mod_open_req->rq_lock);
 		mod->mod_open_req->rq_replay = 0;
 		spin_unlock(&mod->mod_open_req->rq_lock);
@@ -851,7 +852,7 @@ static int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
 	rc = ptlrpc_queue_wait(req);
 	mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
 
-	if (req->rq_repmsg == NULL) {
+	if (!req->rq_repmsg) {
 		CDEBUG(D_RPCTRACE, "request failed to send: %p, %d\n", req,
 		       req->rq_status);
 		if (rc == 0)
@@ -867,7 +868,7 @@ static int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
 				rc = -rc;
 		}
 		body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-		if (body == NULL)
+		if (!body)
 			rc = -EPROTO;
 	} else if (rc == -ESTALE) {
 		/**
@@ -877,7 +878,6 @@ static int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
 		 */
 		if (mod) {
 			DEBUG_REQ(D_HA, req, "Reset ESTALE = %d", rc);
-			LASSERT(mod->mod_open_req != NULL);
 			if (mod->mod_open_req->rq_committed)
 				rc = 0;
 		}
@@ -887,7 +887,8 @@ static int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
 		if (rc != 0)
 			mod->mod_close_req = NULL;
 		/* Since now, mod is accessed through open_req only,
-		 * thus close req does not keep a reference on mod anymore. */
+		 * thus close req does not keep a reference on mod anymore.
+		 */
 		obd_mod_put(mod);
 	}
 	*request = req;
@@ -904,7 +905,7 @@ static int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data,
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_MDS_DONE_WRITING);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_DONE_WRITING);
@@ -913,15 +914,16 @@ static int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data,
 		return rc;
 	}
 
-	if (mod != NULL) {
-		LASSERTF(mod->mod_open_req != NULL &&
+	if (mod) {
+		LASSERTF(mod->mod_open_req &&
 			 mod->mod_open_req->rq_type != LI_POISON,
 			 "POISONED setattr %p!\n", mod->mod_open_req);
 
 		mod->mod_close_req = req;
 		DEBUG_REQ(D_HA, mod->mod_open_req, "matched setattr");
 		/* We no longer want to preserve this setattr for replay even
-		 * though the open was committed. b=3632, b=3633 */
+		 * though the open was committed. b=3632, b=3633
+		 */
 		spin_lock(&mod->mod_open_req->rq_lock);
 		mod->mod_open_req->rq_replay = 0;
 		spin_unlock(&mod->mod_open_req->rq_lock);
@@ -941,7 +943,6 @@ static int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data,
 		 * Let's check if mod exists and return no error in that case
 		 */
 		if (mod) {
-			LASSERT(mod->mod_open_req != NULL);
 			if (mod->mod_open_req->rq_committed)
 				rc = 0;
 		}
@@ -950,11 +951,12 @@ static int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data,
 	if (mod) {
 		if (rc != 0)
 			mod->mod_close_req = NULL;
-		LASSERT(mod->mod_open_req != NULL);
+		LASSERT(mod->mod_open_req);
 		mdc_free_open(mod);
 
 		/* Since now, mod is accessed through setattr req only,
-		 * thus DW req does not keep a reference on mod anymore. */
+		 * thus DW req does not keep a reference on mod anymore.
+		 */
 		obd_mod_put(mod);
 	}
 
@@ -979,7 +981,7 @@ static int mdc_readpage(struct obd_export *exp, struct md_op_data *op_data,
 
 restart_bulk:
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_READPAGE);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_READPAGE);
@@ -993,7 +995,7 @@ restart_bulk:
 
 	desc = ptlrpc_prep_bulk_imp(req, op_data->op_npages, 1, BULK_PUT_SINK,
 				    MDS_BULK_PORTAL);
-	if (desc == NULL) {
+	if (!desc) {
 		ptlrpc_request_free(req);
 		return -ENOMEM;
 	}
@@ -1067,7 +1069,7 @@ static int mdc_statfs(const struct lu_env *env,
 
 	req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_STATFS,
 					LUSTRE_MDS_VERSION, MDS_STATFS);
-	if (req == NULL) {
+	if (!req) {
 		rc = -ENOMEM;
 		goto output;
 	}
@@ -1089,7 +1091,7 @@ static int mdc_statfs(const struct lu_env *env,
 	}
 
 	msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
-	if (msfs == NULL) {
+	if (!msfs) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -1162,7 +1164,7 @@ static int mdc_ioc_hsm_progress(struct obd_export *exp,
 
 	req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_PROGRESS,
 					LUSTRE_MDS_VERSION, MDS_HSM_PROGRESS);
-	if (req == NULL) {
+	if (!req) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1171,7 +1173,7 @@ static int mdc_ioc_hsm_progress(struct obd_export *exp,
 
 	/* Copy hsm_progress struct */
 	req_hpk = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_PROGRESS);
-	if (req_hpk == NULL) {
+	if (!req_hpk) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -1196,7 +1198,7 @@ static int mdc_ioc_hsm_ct_register(struct obd_import *imp, __u32 archives)
 	req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_CT_REGISTER,
 					LUSTRE_MDS_VERSION,
 					MDS_HSM_CT_REGISTER);
-	if (req == NULL) {
+	if (!req) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1206,7 +1208,7 @@ static int mdc_ioc_hsm_ct_register(struct obd_import *imp, __u32 archives)
 	/* Copy hsm_progress struct */
 	archive_mask = req_capsule_client_get(&req->rq_pill,
 					      &RMF_MDS_HSM_ARCHIVE);
-	if (archive_mask == NULL) {
+	if (!archive_mask) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -1231,7 +1233,7 @@ static int mdc_ioc_hsm_current_action(struct obd_export *exp,
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_MDS_HSM_ACTION);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_ACTION);
@@ -1251,7 +1253,7 @@ static int mdc_ioc_hsm_current_action(struct obd_export *exp,
 
 	req_hca = req_capsule_server_get(&req->rq_pill,
 					 &RMF_MDS_HSM_CURRENT_ACTION);
-	if (req_hca == NULL) {
+	if (!req_hca) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -1271,7 +1273,7 @@ static int mdc_ioc_hsm_ct_unregister(struct obd_import *imp)
 	req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_CT_UNREGISTER,
 					LUSTRE_MDS_VERSION,
 					MDS_HSM_CT_UNREGISTER);
-	if (req == NULL) {
+	if (!req) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1296,7 +1298,7 @@ static int mdc_ioc_hsm_state_get(struct obd_export *exp,
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_MDS_HSM_STATE_GET);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_STATE_GET);
@@ -1315,7 +1317,7 @@ static int mdc_ioc_hsm_state_get(struct obd_export *exp,
 		goto out;
 
 	req_hus = req_capsule_server_get(&req->rq_pill, &RMF_HSM_USER_STATE);
-	if (req_hus == NULL) {
+	if (!req_hus) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -1337,7 +1339,7 @@ static int mdc_ioc_hsm_state_set(struct obd_export *exp,
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_MDS_HSM_STATE_SET);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_STATE_SET);
@@ -1351,7 +1353,7 @@ static int mdc_ioc_hsm_state_set(struct obd_export *exp,
 
 	/* Copy states */
 	req_hss = req_capsule_client_get(&req->rq_pill, &RMF_HSM_STATE_SET);
-	if (req_hss == NULL) {
+	if (!req_hss) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -1376,7 +1378,7 @@ static int mdc_ioc_hsm_request(struct obd_export *exp,
 	int			 rc;
 
 	req = ptlrpc_request_alloc(imp, &RQF_MDS_HSM_REQUEST);
-	if (req == NULL) {
+	if (!req) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1397,7 +1399,7 @@ static int mdc_ioc_hsm_request(struct obd_export *exp,
 
 	/* Copy hsm_request struct */
 	req_hr = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_REQUEST);
-	if (req_hr == NULL) {
+	if (!req_hr) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -1405,7 +1407,7 @@ static int mdc_ioc_hsm_request(struct obd_export *exp,
 
 	/* Copy hsm_user_item structs */
 	req_hui = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM);
-	if (req_hui == NULL) {
+	if (!req_hui) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -1414,7 +1416,7 @@ static int mdc_ioc_hsm_request(struct obd_export *exp,
 
 	/* Copy opaque field */
 	req_opaque = req_capsule_client_get(&req->rq_pill, &RMF_GENERIC_DATA);
-	if (req_opaque == NULL) {
+	if (!req_opaque) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -1513,7 +1515,7 @@ static int mdc_changelog_send_thread(void *csdata)
 
 	/* Set up the remote catalog handle */
 	ctxt = llog_get_context(cs->cs_obd, LLOG_CHANGELOG_REPL_CTXT);
-	if (ctxt == NULL) {
+	if (!ctxt) {
 		rc = -ENOENT;
 		goto out;
 	}
@@ -1554,6 +1556,7 @@ static int mdc_ioc_changelog_send(struct obd_device *obd,
 				  struct ioc_changelog *icc)
 {
 	struct changelog_show *cs;
+	struct task_struct *task;
 	int rc;
 
 	/* Freed in mdc_changelog_send_thread */
@@ -1571,15 +1574,20 @@ static int mdc_ioc_changelog_send(struct obd_device *obd,
 	 * New thread because we should return to user app before
 	 * writing into our pipe
 	 */
-	rc = PTR_ERR(kthread_run(mdc_changelog_send_thread, cs,
-				 "mdc_clg_send_thread"));
-	if (!IS_ERR_VALUE(rc)) {
-		CDEBUG(D_CHANGELOG, "start changelog thread\n");
-		return 0;
+	task = kthread_run(mdc_changelog_send_thread, cs,
+			   "mdc_clg_send_thread");
+	if (IS_ERR(task)) {
+		rc = PTR_ERR(task);
+		CERROR("%s: can't start changelog thread: rc = %d\n",
+		       obd->obd_name, rc);
+		kfree(cs);
+	} else {
+		rc = 0;
+		CDEBUG(D_CHANGELOG, "%s: started changelog thread\n",
+		       obd->obd_name);
 	}
 
 	CERROR("Failed to start changelog thread: %d\n", rc);
-	kfree(cs);
 	return rc;
 }
 
@@ -1597,7 +1605,7 @@ static int mdc_quotacheck(struct obd_device *unused, struct obd_export *exp,
 	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
 					&RQF_MDS_QUOTACHECK, LUSTRE_MDS_VERSION,
 					MDS_QUOTACHECK);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
@@ -1606,7 +1614,8 @@ static int mdc_quotacheck(struct obd_device *unused, struct obd_export *exp,
 	ptlrpc_request_set_replen(req);
 
 	/* the next poll will find -ENODATA, that means quotacheck is
-	 * going on */
+	 * going on
+	 */
 	cli->cl_qchk_stat = -ENODATA;
 	rc = ptlrpc_queue_wait(req);
 	if (rc)
@@ -1641,7 +1650,7 @@ static int mdc_quotactl(struct obd_device *unused, struct obd_export *exp,
 	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
 					&RQF_MDS_QUOTACTL, LUSTRE_MDS_VERSION,
 					MDS_QUOTACTL);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
@@ -1695,7 +1704,7 @@ static int mdc_ioc_swap_layouts(struct obd_export *exp,
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_MDS_SWAP_LAYOUTS);
-	if (req == NULL) {
+	if (!req) {
 		ldlm_lock_list_put(&cancels, l_bl_ast, count);
 		return -ENOMEM;
 	}
@@ -1881,7 +1890,7 @@ static int mdc_get_info_rpc(struct obd_export *exp,
 	int		     rc = -EINVAL;
 
 	req = ptlrpc_request_alloc(imp, &RQF_MDS_GET_INFO);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_KEY,
@@ -1906,7 +1915,8 @@ static int mdc_get_info_rpc(struct obd_export *exp,
 
 	rc = ptlrpc_queue_wait(req);
 	/* -EREMOTE means the get_info result is partial, and it needs to
-	 * continue on another MDT, see fid2path part in lmv_iocontrol */
+	 * continue on another MDT, see fid2path part in lmv_iocontrol
+	 */
 	if (rc == 0 || rc == -EREMOTE) {
 		tmp = req_capsule_server_get(&req->rq_pill, &RMF_GETINFO_VAL);
 		memcpy(val, tmp, vallen);
@@ -2140,7 +2150,7 @@ static int mdc_sync(struct obd_export *exp, const struct lu_fid *fid,
 
 	*request = NULL;
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_SYNC);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_SYNC);
@@ -2182,7 +2192,7 @@ static int mdc_import_event(struct obd_device *obd, struct obd_import *imp,
 		 * Flush current sequence to make client obtain new one
 		 * from server in case of disconnect/reconnect.
 		 */
-		if (cli->cl_seq != NULL)
+		if (cli->cl_seq)
 			seq_client_flush(cli->cl_seq);
 
 		rc = obd_notify_observer(obd, obd, OBD_NOTIFY_INACTIVE, NULL);
@@ -2245,7 +2255,8 @@ static int mdc_cancel_for_recovery(struct ldlm_lock *lock)
 
 	/* FIXME: if we ever get into a situation where there are too many
 	 * opened files with open locks on a single node, then we really
-	 * should replay these open locks to reget it */
+	 * should replay these open locks to reget it
+	 */
 	if (lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_OPEN)
 		return 0;
 
@@ -2429,7 +2440,7 @@ static int mdc_get_remote_perm(struct obd_export *exp, const struct lu_fid *fid,
 
 	*request = NULL;
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
diff --git a/drivers/staging/lustre/lustre/mgc/mgc_request.c b/drivers/staging/lustre/lustre/mgc/mgc_request.c
index ab4800c..6fc8225 100644
--- a/drivers/staging/lustre/lustre/mgc/mgc_request.c
+++ b/drivers/staging/lustre/lustre/mgc/mgc_request.c
@@ -90,7 +90,8 @@ static int mgc_name2resid(char *name, int len, struct ldlm_res_id *res_id,
 int mgc_fsname2resid(char *fsname, struct ldlm_res_id *res_id, int type)
 {
 	/* fsname is at most 8 chars long, maybe contain "-".
-	 * e.g. "lustre", "SUN-000" */
+	 * e.g. "lustre", "SUN-000"
+	 */
 	return mgc_name2resid(fsname, strlen(fsname), res_id, type);
 }
 EXPORT_SYMBOL(mgc_fsname2resid);
@@ -102,7 +103,8 @@ static int mgc_logname2resid(char *logname, struct ldlm_res_id *res_id, int type
 
 	/* logname consists of "fsname-nodetype".
 	 * e.g. "lustre-MDT0001", "SUN-000-client"
-	 * there is an exception: llog "params" */
+	 * there is an exception: llog "params"
+	 */
 	name_end = strrchr(logname, '-');
 	if (!name_end)
 		len = strlen(logname);
@@ -125,7 +127,8 @@ static int config_log_get(struct config_llog_data *cld)
 }
 
 /* Drop a reference to a config log.  When no longer referenced,
-   we can free the config log data */
+ * we can free the config log data
+ */
 static void config_log_put(struct config_llog_data *cld)
 {
 	CDEBUG(D_INFO, "log %s refs %d\n", cld->cld_logname,
@@ -162,7 +165,7 @@ struct config_llog_data *config_log_find(char *logname,
 	struct config_llog_data *found = NULL;
 	void *instance;
 
-	LASSERT(logname != NULL);
+	LASSERT(logname);
 
 	instance = cfg ? cfg->cfg_instance : NULL;
 	spin_lock(&config_list_lock);
@@ -252,7 +255,8 @@ static struct config_llog_data *config_recover_log_add(struct obd_device *obd,
 	char logname[32];
 
 	/* we have to use different llog for clients and mdts for cmd
-	 * where only clients are notified if one of cmd server restarts */
+	 * where only clients are notified if one of cmd server restarts
+	 */
 	LASSERT(strlen(fsname) < sizeof(logname) / 2);
 	strcpy(logname, fsname);
 	LASSERT(lcfg.cfg_instance);
@@ -300,7 +304,7 @@ static int config_log_add(struct obd_device *obd, char *logname,
 	 * <fsname>-sptlrpc. multiple regular logs may share one sptlrpc log.
 	 */
 	ptr = strrchr(logname, '-');
-	if (ptr == NULL || ptr - logname > 8) {
+	if (!ptr || ptr - logname > 8) {
 		CERROR("logname %s is too long\n", logname);
 		return -EINVAL;
 	}
@@ -309,7 +313,7 @@ static int config_log_add(struct obd_device *obd, char *logname,
 	strcpy(seclogname + (ptr - logname), "-sptlrpc");
 
 	sptlrpc_cld = config_log_find(seclogname, NULL);
-	if (sptlrpc_cld == NULL) {
+	if (!sptlrpc_cld) {
 		sptlrpc_cld = do_config_log_add(obd, seclogname,
 						CONFIG_T_SPTLRPC, NULL, NULL);
 		if (IS_ERR(sptlrpc_cld)) {
@@ -376,7 +380,7 @@ static int config_log_end(char *logname, struct config_llog_instance *cfg)
 	int rc = 0;
 
 	cld = config_log_find(logname, cfg);
-	if (cld == NULL)
+	if (!cld)
 		return -ENOENT;
 
 	mutex_lock(&cld->cld_lock);
@@ -455,7 +459,7 @@ int lprocfs_mgc_rd_ir_state(struct seq_file *m, void *data)
 
 	spin_lock(&config_list_lock);
 	list_for_each_entry(cld, &config_llog_list, cld_list_chain) {
-		if (cld->cld_recover == NULL)
+		if (!cld->cld_recover)
 			continue;
 		seq_printf(m,  "    - { client: %s, nidtbl_version: %u }\n",
 			       cld->cld_logname,
@@ -483,8 +487,9 @@ static void do_requeue(struct config_llog_data *cld)
 	LASSERT(atomic_read(&cld->cld_refcount) > 0);
 
 	/* Do not run mgc_process_log on a disconnected export or an
-	   export which is being disconnected. Take the client
-	   semaphore to make the check non-racy. */
+	 * export which is being disconnected. Take the client
+	 * semaphore to make the check non-racy.
+	 */
 	down_read(&cld->cld_mgcexp->exp_obd->u.cli.cl_sem);
 	if (cld->cld_mgcexp->exp_obd->u.cli.cl_conn_count != 0) {
 		CDEBUG(D_MGC, "updating log %s\n", cld->cld_logname);
@@ -529,8 +534,9 @@ static int mgc_requeue_thread(void *data)
 		}
 
 		/* Always wait a few seconds to allow the server who
-		   caused the lock revocation to finish its setup, plus some
-		   random so everyone doesn't try to reconnect at once. */
+		 * caused the lock revocation to finish its setup, plus some
+		 * random so everyone doesn't try to reconnect at once.
+		 */
 		to = MGC_TIMEOUT_MIN_SECONDS * HZ;
 		to += rand * HZ / 100; /* rand is centi-seconds */
 		lwi = LWI_TIMEOUT(to, NULL, NULL);
@@ -559,7 +565,8 @@ static int mgc_requeue_thread(void *data)
 			LASSERT(atomic_read(&cld->cld_refcount) > 0);
 
 			/* Whether we enqueued again or not in mgc_process_log,
-			 * we're done with the ref from the old enqueue */
+			 * we're done with the ref from the old enqueue
+			 */
 			if (cld_prev)
 				config_log_put(cld_prev);
 			cld_prev = cld;
@@ -575,7 +582,8 @@ static int mgc_requeue_thread(void *data)
 			config_log_put(cld_prev);
 
 		/* break after scanning the list so that we can drop
-		 * refcount to losing lock clds */
+		 * refcount to losing lock clds
+		 */
 		if (unlikely(stopped)) {
 			spin_lock(&config_list_lock);
 			break;
@@ -598,7 +606,8 @@ static int mgc_requeue_thread(void *data)
 }
 
 /* Add a cld to the list to requeue.  Start the requeue thread if needed.
-   We are responsible for dropping the config log reference from here on out. */
+ * We are responsible for dropping the config log reference from here on out.
+ */
 static void mgc_requeue_add(struct config_llog_data *cld)
 {
 	CDEBUG(D_INFO, "log %s: requeue (r=%d sp=%d st=%x)\n",
@@ -635,7 +644,8 @@ static int mgc_llog_init(const struct lu_env *env, struct obd_device *obd)
 	int			 rc;
 
 	/* setup only remote ctxt, the local disk context is switched per each
-	 * filesystem during mgc_fs_setup() */
+	 * filesystem during mgc_fs_setup()
+	 */
 	rc = llog_setup(env, obd, &obd->obd_olg, LLOG_CONFIG_REPL_CTXT, obd,
 			&llog_client_ops);
 	if (rc)
@@ -697,7 +707,8 @@ static int mgc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
 static int mgc_cleanup(struct obd_device *obd)
 {
 	/* COMPAT_146 - old config logs may have added profiles we don't
-	   know about */
+	 * know about
+	 */
 	if (obd->obd_type->typ_refcnt <= 1)
 		/* Only for the last mgc */
 		class_del_profiles();
@@ -711,6 +722,7 @@ static int mgc_cleanup(struct obd_device *obd)
 static int mgc_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
 {
 	struct lprocfs_static_vars lvars = { NULL };
+	struct task_struct *task;
 	int rc;
 
 	ptlrpcd_addref();
@@ -734,10 +746,10 @@ static int mgc_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
 		init_waitqueue_head(&rq_waitq);
 
 		/* start requeue thread */
-		rc = PTR_ERR(kthread_run(mgc_requeue_thread, NULL,
-					     "ll_cfg_requeue"));
-		if (IS_ERR_VALUE(rc)) {
-			CERROR("%s: Cannot start requeue thread (%d),no more log updates!\n",
+		task = kthread_run(mgc_requeue_thread, NULL, "ll_cfg_requeue");
+		if (IS_ERR(task)) {
+			rc = PTR_ERR(task);
+			CERROR("%s: cannot start requeue thread: rc = %d; no more log updates\n",
 			       obd->obd_name, rc);
 			goto err_cleanup;
 		}
@@ -793,7 +805,8 @@ static int mgc_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
 			break;
 		}
 		/* Make sure not to re-enqueue when the mgc is stopping
-		   (we get called from client_disconnect_export) */
+		 * (we get called from client_disconnect_export)
+		 */
 		if (!lock->l_conn_export ||
 		    !lock->l_conn_export->exp_obd->u.cli.cl_conn_count) {
 			CDEBUG(D_MGC, "log %.8s: disconnecting, won't requeue\n",
@@ -815,7 +828,8 @@ static int mgc_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
 
 /* Not sure where this should go... */
 /* This is the timeout value for MGS_CONNECT request plus a ping interval, such
- * that we can have a chance to try the secondary MGS if any. */
+ * that we can have a chance to try the secondary MGS if any.
+ */
 #define  MGC_ENQUEUE_LIMIT (INITIAL_CONNECT_TIMEOUT + (AT_OFF ? 0 : at_min) \
 				+ PING_INTERVAL)
 #define  MGC_TARGET_REG_LIMIT 10
@@ -879,11 +893,12 @@ static int mgc_enqueue(struct obd_export *exp, struct lov_stripe_md *lsm,
 	       cld->cld_resid.name[0]);
 
 	/* We need a callback for every lockholder, so don't try to
-	   ldlm_lock_match (see rev 1.1.2.11.2.47) */
+	 * ldlm_lock_match (see rev 1.1.2.11.2.47)
+	 */
 	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
 					&RQF_LDLM_ENQUEUE, LUSTRE_DLM_VERSION,
 					LDLM_ENQUEUE);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER, 0);
@@ -894,7 +909,8 @@ static int mgc_enqueue(struct obd_export *exp, struct lov_stripe_md *lsm,
 	rc = ldlm_cli_enqueue(exp, &req, &einfo, &cld->cld_resid, NULL, flags,
 			      NULL, 0, LVB_T_NONE, lockh, 0);
 	/* A failed enqueue should still call the mgc_blocking_ast,
-	   where it will be requeued if needed ("grant failed"). */
+	 * where it will be requeued if needed ("grant failed").
+	 */
 	ptlrpc_req_finished(req);
 	return rc;
 }
@@ -921,7 +937,7 @@ static int mgc_target_register(struct obd_export *exp,
 	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
 					&RQF_MGS_TARGET_REG, LUSTRE_MGS_VERSION,
 					MGS_TARGET_REG);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	req_mti = req_capsule_client_get(&req->rq_pill, &RMF_MGS_TARGET_INFO);
@@ -1109,7 +1125,7 @@ static int mgc_apply_recover_logs(struct obd_device *mgc,
 	int   rc  = 0;
 	int   off = 0;
 
-	LASSERT(cfg->cfg_instance != NULL);
+	LASSERT(cfg->cfg_instance);
 	LASSERT(cfg->cfg_sb == cfg->cfg_instance);
 
 	inst = kzalloc(PAGE_CACHE_SIZE, GFP_KERNEL);
@@ -1195,7 +1211,7 @@ static int mgc_apply_recover_logs(struct obd_device *mgc,
 		/* lustre-OST0001-osc-<instance #> */
 		strcpy(obdname, cld->cld_logname);
 		cname = strrchr(obdname, '-');
-		if (cname == NULL) {
+		if (!cname) {
 			CERROR("mgc %s: invalid logname %s\n",
 			       mgc->obd_name, obdname);
 			break;
@@ -1212,7 +1228,7 @@ static int mgc_apply_recover_logs(struct obd_device *mgc,
 
 		/* find the obd by obdname */
 		obd = class_name2obd(obdname);
-		if (obd == NULL) {
+		if (!obd) {
 			CDEBUG(D_INFO, "mgc %s: cannot find obdname %s\n",
 			       mgc->obd_name, obdname);
 			rc = 0;
@@ -1227,7 +1243,7 @@ static int mgc_apply_recover_logs(struct obd_device *mgc,
 		uuid = buf + pos;
 
 		down_read(&obd->u.cli.cl_sem);
-		if (obd->u.cli.cl_import == NULL) {
+		if (!obd->u.cli.cl_import) {
 			/* client does not connect to the OST yet */
 			up_read(&obd->u.cli.cl_sem);
 			rc = 0;
@@ -1257,7 +1273,7 @@ static int mgc_apply_recover_logs(struct obd_device *mgc,
 
 		rc = -ENOMEM;
 		lcfg = lustre_cfg_new(LCFG_PARAM, &bufs);
-		if (lcfg == NULL) {
+		if (!lcfg) {
 			CERROR("mgc: cannot allocate memory\n");
 			break;
 		}
@@ -1309,14 +1325,14 @@ static int mgc_process_recover_log(struct obd_device *obd,
 		nrpages = CONFIG_READ_NRPAGES_INIT;
 
 	pages = kcalloc(nrpages, sizeof(*pages), GFP_KERNEL);
-	if (pages == NULL) {
+	if (!pages) {
 		rc = -ENOMEM;
 		goto out;
 	}
 
 	for (i = 0; i < nrpages; i++) {
 		pages[i] = alloc_page(GFP_KERNEL);
-		if (pages[i] == NULL) {
+		if (!pages[i]) {
 			rc = -ENOMEM;
 			goto out;
 		}
@@ -1327,7 +1343,7 @@ again:
 	LASSERT(mutex_is_locked(&cld->cld_lock));
 	req = ptlrpc_request_alloc(class_exp2cliimp(cld->cld_mgcexp),
 				   &RQF_MGS_CONFIG_READ);
-	if (req == NULL) {
+	if (!req) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1338,7 +1354,6 @@ again:
 
 	/* pack request */
 	body = req_capsule_client_get(&req->rq_pill, &RMF_MGS_CONFIG_BODY);
-	LASSERT(body != NULL);
 	LASSERT(sizeof(body->mcb_name) > strlen(cld->cld_logname));
 	if (strlcpy(body->mcb_name, cld->cld_logname, sizeof(body->mcb_name))
 	    >= sizeof(body->mcb_name)) {
@@ -1353,7 +1368,7 @@ again:
 	/* allocate bulk transfer descriptor */
 	desc = ptlrpc_prep_bulk_imp(req, nrpages, 1, BULK_PUT_SINK,
 				    MGS_BULK_PORTAL);
-	if (desc == NULL) {
+	if (!desc) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1373,7 +1388,8 @@ again:
 	}
 
 	/* always update the index even though it might have errors with
-	 * handling the recover logs */
+	 * handling the recover logs
+	 */
 	cfg->cfg_last_idx = res->mcr_offset;
 	eof = res->mcr_offset == res->mcr_size;
 
@@ -1400,7 +1416,8 @@ again:
 	mne_swab = !!ptlrpc_rep_need_swab(req);
 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 2, 50, 0)
 	/* This import flag means the server did an extra swab of IR MNE
-	 * records (fixed in LU-1252), reverse it here if needed. LU-1644 */
+	 * records (fixed in LU-1252), reverse it here if needed. LU-1644
+	 */
 	if (unlikely(req->rq_import->imp_need_mne_swab))
 		mne_swab = !mne_swab;
 #else
@@ -1434,7 +1451,7 @@ out:
 
 	if (pages) {
 		for (i = 0; i < nrpages; i++) {
-			if (pages[i] == NULL)
+			if (!pages[i])
 				break;
 			__free_page(pages[i]);
 		}
@@ -1489,7 +1506,8 @@ static int mgc_process_cfg_log(struct obd_device *mgc,
 
 	/* logname and instance info should be the same, so use our
 	 * copy of the instance for the update.  The cfg_last_idx will
-	 * be updated here. */
+	 * be updated here.
+	 */
 	rc = class_config_parse_llog(env, ctxt, cld->cld_logname,
 				     &cld->cld_cfg);
 
@@ -1529,9 +1547,10 @@ int mgc_process_log(struct obd_device *mgc, struct config_llog_data *cld)
 	LASSERT(cld);
 
 	/* I don't want multiple processes running process_log at once --
-	   sounds like badness.  It actually might be fine, as long as
-	   we're not trying to update from the same log
-	   simultaneously (in which case we should use a per-log sem.) */
+	 * sounds like badness.  It actually might be fine, as long as
+	 * we're not trying to update from the same log
+	 * simultaneously (in which case we should use a per-log sem.)
+	 */
 	mutex_lock(&cld->cld_lock);
 	if (cld->cld_stopping) {
 		mutex_unlock(&cld->cld_lock);
@@ -1556,7 +1575,8 @@ int mgc_process_log(struct obd_device *mgc, struct config_llog_data *cld)
 		CDEBUG(D_MGC, "Can't get cfg lock: %d\n", rcl);
 
 		/* mark cld_lostlock so that it will requeue
-		 * after MGC becomes available. */
+		 * after MGC becomes available.
+		 */
 		cld->cld_lostlock = 1;
 		/* Get extra reference, it will be put in requeue thread */
 		config_log_get(cld);
@@ -1635,18 +1655,19 @@ static int mgc_process_config(struct obd_device *obd, u32 len, void *buf)
 		if (rc)
 			break;
 		cld = config_log_find(logname, cfg);
-		if (cld == NULL) {
+		if (!cld) {
 			rc = -ENOENT;
 			break;
 		}
 
 		/* COMPAT_146 */
 		/* FIXME only set this for old logs!  Right now this forces
-		   us to always skip the "inside markers" check */
+		 * us to always skip the "inside markers" check
+		 */
 		cld->cld_cfg.cfg_flags |= CFG_F_COMPAT146;
 
 		rc = mgc_process_log(obd, cld);
-		if (rc == 0 && cld->cld_recover != NULL) {
+		if (rc == 0 && cld->cld_recover) {
 			if (OCD_HAS_FLAG(&obd->u.cli.cl_import->
 					 imp_connect_data, IMP_RECOV)) {
 				rc = mgc_process_log(obd, cld->cld_recover);
@@ -1660,7 +1681,7 @@ static int mgc_process_config(struct obd_device *obd, u32 len, void *buf)
 				CERROR("Cannot process recover llog %d\n", rc);
 		}
 
-		if (rc == 0 && cld->cld_params != NULL) {
+		if (rc == 0 && cld->cld_params) {
 			rc = mgc_process_log(obd, cld->cld_params);
 			if (rc == -ENOENT) {
 				CDEBUG(D_MGC,
diff --git a/drivers/staging/lustre/lustre/obdclass/acl.c b/drivers/staging/lustre/lustre/obdclass/acl.c
index 49ba885..0e02ae9 100644
--- a/drivers/staging/lustre/lustre/obdclass/acl.c
+++ b/drivers/staging/lustre/lustre/obdclass/acl.c
@@ -104,7 +104,7 @@ static int lustre_posix_acl_xattr_reduce_space(posix_acl_xattr_header **header,
 		return old_size;
 
 	new = kmemdup(*header, new_size, GFP_NOFS);
-	if (unlikely(new == NULL))
+	if (unlikely(!new))
 		return -ENOMEM;
 
 	kfree(*header);
@@ -124,7 +124,7 @@ static int lustre_ext_acl_xattr_reduce_space(ext_acl_xattr_header **header,
 		return 0;
 
 	new = kmemdup(*header, ext_size, GFP_NOFS);
-	if (unlikely(new == NULL))
+	if (unlikely(!new))
 		return -ENOMEM;
 
 	kfree(*header);
@@ -149,7 +149,7 @@ lustre_posix_acl_xattr_2ext(posix_acl_xattr_header *header, int size)
 		count = CFS_ACL_XATTR_COUNT(size, posix_acl_xattr);
 	esize = CFS_ACL_XATTR_SIZE(count, ext_acl_xattr);
 	new = kzalloc(esize, GFP_NOFS);
-	if (unlikely(new == NULL))
+	if (unlikely(!new))
 		return ERR_PTR(-ENOMEM);
 
 	new->a_count = cpu_to_le32(count);
@@ -180,7 +180,7 @@ int lustre_posix_acl_xattr_filter(posix_acl_xattr_header *header, size_t size,
 		return -EINVAL;
 
 	new = kzalloc(size, GFP_NOFS);
-	if (unlikely(new == NULL))
+	if (unlikely(!new))
 		return -ENOMEM;
 
 	new->a_version = cpu_to_le32(CFS_ACL_XATTR_VERSION);
@@ -300,7 +300,7 @@ lustre_acl_xattr_merge2ext(posix_acl_xattr_header *posix_header, int size,
 	ext_size = CFS_ACL_XATTR_SIZE(ext_count, ext_acl_xattr);
 
 	new = kzalloc(ext_size, GFP_NOFS);
-	if (unlikely(new == NULL))
+	if (unlikely(!new))
 		return ERR_PTR(-ENOMEM);
 
 	for (i = 0, j = 0; i < posix_count; i++) {
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c
index 63246ba..191ec43 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_io.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c
@@ -44,6 +44,7 @@
 #include "../include/obd_support.h"
 #include "../include/lustre_fid.h"
 #include <linux/list.h>
+#include <linux/sched.h>
 #include "../include/cl_object.h"
 #include "cl_internal.h"
 
@@ -93,7 +94,7 @@ static int cl_io_invariant(const struct cl_io *io)
 		 * CIS_IO_GOING.
 		 */
 		ergo(io->ci_owned_nr > 0, io->ci_state == CIS_IO_GOING ||
-		     (io->ci_state == CIS_LOCKED && up != NULL));
+		     (io->ci_state == CIS_LOCKED && up));
 }
 
 /**
@@ -111,7 +112,7 @@ void cl_io_fini(const struct lu_env *env, struct cl_io *io)
 		slice = container_of(io->ci_layers.prev, struct cl_io_slice,
 				     cis_linkage);
 		list_del_init(&slice->cis_linkage);
-		if (slice->cis_iop->op[io->ci_type].cio_fini != NULL)
+		if (slice->cis_iop->op[io->ci_type].cio_fini)
 			slice->cis_iop->op[io->ci_type].cio_fini(env, slice);
 		/*
 		 * Invalidate slice to catch use after free. This assumes that
@@ -164,7 +165,7 @@ static int cl_io_init0(const struct lu_env *env, struct cl_io *io,
 
 	result = 0;
 	cl_object_for_each(scan, obj) {
-		if (scan->co_ops->coo_io_init != NULL) {
+		if (scan->co_ops->coo_io_init) {
 			result = scan->co_ops->coo_io_init(env, scan, io);
 			if (result != 0)
 				break;
@@ -186,7 +187,7 @@ int cl_io_sub_init(const struct lu_env *env, struct cl_io *io,
 	struct cl_thread_info *info = cl_env_info(env);
 
 	LASSERT(obj != cl_object_top(obj));
-	if (info->clt_current_io == NULL)
+	if (!info->clt_current_io)
 		info->clt_current_io = io;
 	return cl_io_init0(env, io, iot, obj);
 }
@@ -208,7 +209,7 @@ int cl_io_init(const struct lu_env *env, struct cl_io *io,
 	struct cl_thread_info *info = cl_env_info(env);
 
 	LASSERT(obj == cl_object_top(obj));
-	LASSERT(info->clt_current_io == NULL);
+	LASSERT(!info->clt_current_io);
 
 	info->clt_current_io = io;
 	return cl_io_init0(env, io, iot, obj);
@@ -224,7 +225,7 @@ int cl_io_rw_init(const struct lu_env *env, struct cl_io *io,
 		  enum cl_io_type iot, loff_t pos, size_t count)
 {
 	LINVRNT(iot == CIT_READ || iot == CIT_WRITE);
-	LINVRNT(io->ci_obj != NULL);
+	LINVRNT(io->ci_obj);
 
 	LU_OBJECT_HEADER(D_VFSTRACE, env, &io->ci_obj->co_lu,
 			 "io range: %u [%llu, %llu) %u %u\n",
@@ -292,7 +293,7 @@ static void cl_io_locks_sort(struct cl_io *io)
 		list_for_each_entry_safe(curr, temp,
 					     &io->ci_lockset.cls_todo,
 					     cill_linkage) {
-			if (prev != NULL) {
+			if (prev) {
 				switch (cl_lock_descr_sort(&prev->cill_descr,
 							  &curr->cill_descr)) {
 				case 0:
@@ -308,7 +309,8 @@ static void cl_io_locks_sort(struct cl_io *io)
 							   &prev->cill_linkage);
 					done = 0;
 					continue; /* don't change prev: it's
-						   * still "previous" */
+						   * still "previous"
+						   */
 				case -1: /* already in order */
 					break;
 				}
@@ -327,32 +329,31 @@ static void cl_io_locks_sort(struct cl_io *io)
 int cl_queue_match(const struct list_head *queue,
 		   const struct cl_lock_descr *need)
 {
-       struct cl_io_lock_link *scan;
+	struct cl_io_lock_link *scan;
 
-       list_for_each_entry(scan, queue, cill_linkage) {
-	       if (cl_lock_descr_match(&scan->cill_descr, need))
-		       return 1;
-       }
-       return 0;
+	list_for_each_entry(scan, queue, cill_linkage) {
+		if (cl_lock_descr_match(&scan->cill_descr, need))
+			return 1;
+	}
+	return 0;
 }
 EXPORT_SYMBOL(cl_queue_match);
 
 static int cl_queue_merge(const struct list_head *queue,
 			  const struct cl_lock_descr *need)
 {
-       struct cl_io_lock_link *scan;
-
-       list_for_each_entry(scan, queue, cill_linkage) {
-	       if (cl_lock_descr_cmp(&scan->cill_descr, need))
-		       continue;
-	       cl_lock_descr_merge(&scan->cill_descr, need);
-	       CDEBUG(D_VFSTRACE, "lock: %d: [%lu, %lu]\n",
-		      scan->cill_descr.cld_mode, scan->cill_descr.cld_start,
-		      scan->cill_descr.cld_end);
-	       return 1;
-       }
-       return 0;
+	struct cl_io_lock_link *scan;
 
+	list_for_each_entry(scan, queue, cill_linkage) {
+		if (cl_lock_descr_cmp(&scan->cill_descr, need))
+			continue;
+		cl_lock_descr_merge(&scan->cill_descr, need);
+		CDEBUG(D_VFSTRACE, "lock: %d: [%lu, %lu]\n",
+		       scan->cill_descr.cld_mode, scan->cill_descr.cld_start,
+		       scan->cill_descr.cld_end);
+		return 1;
+	}
+	return 0;
 }
 
 static int cl_lockset_match(const struct cl_lockset *set,
@@ -399,11 +400,11 @@ static void cl_lock_link_fini(const struct lu_env *env, struct cl_io *io,
 	struct cl_lock *lock = link->cill_lock;
 
 	list_del_init(&link->cill_linkage);
-	if (lock != NULL) {
+	if (lock) {
 		cl_lock_release(env, lock, "io", io);
 		link->cill_lock = NULL;
 	}
-	if (link->cill_fini != NULL)
+	if (link->cill_fini)
 		link->cill_fini(env, link);
 }
 
@@ -419,7 +420,8 @@ static int cl_lockset_lock(const struct lu_env *env, struct cl_io *io,
 	list_for_each_entry_safe(link, temp, &set->cls_todo, cill_linkage) {
 		if (!cl_lockset_match(set, &link->cill_descr)) {
 			/* XXX some locking to guarantee that locks aren't
-			 * expanded in between. */
+			 * expanded in between.
+			 */
 			result = cl_lockset_lock_one(env, io, set, link);
 			if (result != 0)
 				break;
@@ -458,7 +460,7 @@ int cl_io_lock(const struct lu_env *env, struct cl_io *io)
 	LINVRNT(cl_io_invariant(io));
 
 	cl_io_for_each(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_lock == NULL)
+		if (!scan->cis_iop->op[io->ci_type].cio_lock)
 			continue;
 		result = scan->cis_iop->op[io->ci_type].cio_lock(env, scan);
 		if (result != 0)
@@ -503,7 +505,7 @@ void cl_io_unlock(const struct lu_env *env, struct cl_io *io)
 		cl_lock_link_fini(env, io, link);
 	}
 	cl_io_for_each_reverse(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_unlock != NULL)
+		if (scan->cis_iop->op[io->ci_type].cio_unlock)
 			scan->cis_iop->op[io->ci_type].cio_unlock(env, scan);
 	}
 	io->ci_state = CIS_UNLOCKED;
@@ -529,7 +531,7 @@ int cl_io_iter_init(const struct lu_env *env, struct cl_io *io)
 
 	result = 0;
 	cl_io_for_each(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_iter_init == NULL)
+		if (!scan->cis_iop->op[io->ci_type].cio_iter_init)
 			continue;
 		result = scan->cis_iop->op[io->ci_type].cio_iter_init(env,
 								      scan);
@@ -556,7 +558,7 @@ void cl_io_iter_fini(const struct lu_env *env, struct cl_io *io)
 	LINVRNT(cl_io_invariant(io));
 
 	cl_io_for_each_reverse(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_iter_fini != NULL)
+		if (scan->cis_iop->op[io->ci_type].cio_iter_fini)
 			scan->cis_iop->op[io->ci_type].cio_iter_fini(env, scan);
 	}
 	io->ci_state = CIS_IT_ENDED;
@@ -581,7 +583,7 @@ static void cl_io_rw_advance(const struct lu_env *env, struct cl_io *io,
 
 	/* layers have to be notified. */
 	cl_io_for_each_reverse(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_advance != NULL)
+		if (scan->cis_iop->op[io->ci_type].cio_advance)
 			scan->cis_iop->op[io->ci_type].cio_advance(env, scan,
 								   nob);
 	}
@@ -621,7 +623,7 @@ int cl_io_lock_alloc_add(const struct lu_env *env, struct cl_io *io,
 	int result;
 
 	link = kzalloc(sizeof(*link), GFP_NOFS);
-	if (link != NULL) {
+	if (link) {
 		link->cill_descr     = *descr;
 		link->cill_fini      = cl_free_io_lock_link;
 		result = cl_io_lock_add(env, io, link);
@@ -648,7 +650,7 @@ int cl_io_start(const struct lu_env *env, struct cl_io *io)
 
 	io->ci_state = CIS_IO_GOING;
 	cl_io_for_each(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_start == NULL)
+		if (!scan->cis_iop->op[io->ci_type].cio_start)
 			continue;
 		result = scan->cis_iop->op[io->ci_type].cio_start(env, scan);
 		if (result != 0)
@@ -673,7 +675,7 @@ void cl_io_end(const struct lu_env *env, struct cl_io *io)
 	LINVRNT(cl_io_invariant(io));
 
 	cl_io_for_each_reverse(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_end != NULL)
+		if (scan->cis_iop->op[io->ci_type].cio_end)
 			scan->cis_iop->op[io->ci_type].cio_end(env, scan);
 		/* TODO: error handling. */
 	}
@@ -687,7 +689,7 @@ cl_io_slice_page(const struct cl_io_slice *ios, struct cl_page *page)
 	const struct cl_page_slice *slice;
 
 	slice = cl_page_at(page, ios->cis_obj->co_lu.lo_dev->ld_type);
-	LINVRNT(slice != NULL);
+	LINVRNT(slice);
 	return slice;
 }
 
@@ -759,11 +761,11 @@ int cl_io_read_page(const struct lu_env *env, struct cl_io *io,
 	 * "parallel io" (see CLO_REPEAT loops in cl_lock.c).
 	 */
 	cl_io_for_each(scan, io) {
-		if (scan->cis_iop->cio_read_page != NULL) {
+		if (scan->cis_iop->cio_read_page) {
 			const struct cl_page_slice *slice;
 
 			slice = cl_io_slice_page(scan, page);
-			LINVRNT(slice != NULL);
+			LINVRNT(slice);
 			result = scan->cis_iop->cio_read_page(env, scan, slice);
 			if (result != 0)
 				break;
@@ -798,7 +800,7 @@ int cl_io_prepare_write(const struct lu_env *env, struct cl_io *io,
 	LASSERT(cl_page_in_io(page, io));
 
 	cl_io_for_each_reverse(scan, io) {
-		if (scan->cis_iop->cio_prepare_write != NULL) {
+		if (scan->cis_iop->cio_prepare_write) {
 			const struct cl_page_slice *slice;
 
 			slice = cl_io_slice_page(scan, page);
@@ -833,11 +835,11 @@ int cl_io_commit_write(const struct lu_env *env, struct cl_io *io,
 	 * state. Better (and more general) way of dealing with such situation
 	 * is needed.
 	 */
-	LASSERT(cl_page_is_owned(page, io) || page->cp_parent != NULL);
+	LASSERT(cl_page_is_owned(page, io) || page->cp_parent);
 	LASSERT(cl_page_in_io(page, io));
 
 	cl_io_for_each(scan, io) {
-		if (scan->cis_iop->cio_commit_write != NULL) {
+		if (scan->cis_iop->cio_commit_write) {
 			const struct cl_page_slice *slice;
 
 			slice = cl_io_slice_page(scan, page);
@@ -872,7 +874,7 @@ int cl_io_submit_rw(const struct lu_env *env, struct cl_io *io,
 	LINVRNT(crt < ARRAY_SIZE(scan->cis_iop->req_op));
 
 	cl_io_for_each(scan, io) {
-		if (scan->cis_iop->req_op[crt].cio_submit == NULL)
+		if (!scan->cis_iop->req_op[crt].cio_submit)
 			continue;
 		result = scan->cis_iop->req_op[crt].cio_submit(env, scan, crt,
 							       queue);
@@ -900,7 +902,7 @@ int cl_io_submit_sync(const struct lu_env *env, struct cl_io *io,
 	int rc;
 
 	cl_page_list_for_each(pg, &queue->c2_qin) {
-		LASSERT(pg->cp_sync_io == NULL);
+		LASSERT(!pg->cp_sync_io);
 		pg->cp_sync_io = anchor;
 	}
 
@@ -913,14 +915,14 @@ int cl_io_submit_sync(const struct lu_env *env, struct cl_io *io,
 		 * clean pages), count them as completed to avoid infinite
 		 * wait.
 		 */
-		 cl_page_list_for_each(pg, &queue->c2_qin) {
+		cl_page_list_for_each(pg, &queue->c2_qin) {
 			pg->cp_sync_io = NULL;
 			cl_sync_io_note(anchor, 1);
-		 }
+		}
 
-		 /* wait for the IO to be finished. */
-		 rc = cl_sync_io_wait(env, io, &queue->c2_qout,
-				      anchor, timeout);
+		/* wait for the IO to be finished. */
+		rc = cl_sync_io_wait(env, io, &queue->c2_qout,
+				     anchor, timeout);
 	} else {
 		LASSERT(list_empty(&queue->c2_qout.pl_pages));
 		cl_page_list_for_each(pg, &queue->c2_qin)
@@ -1026,7 +1028,7 @@ void cl_io_slice_add(struct cl_io *io, struct cl_io_slice *slice,
 {
 	struct list_head *linkage = &slice->cis_linkage;
 
-	LASSERT((linkage->prev == NULL && linkage->next == NULL) ||
+	LASSERT((!linkage->prev && !linkage->next) ||
 		list_empty(linkage));
 
 	list_add_tail(linkage, &io->ci_layers);
@@ -1053,8 +1055,9 @@ EXPORT_SYMBOL(cl_page_list_init);
 void cl_page_list_add(struct cl_page_list *plist, struct cl_page *page)
 {
 	/* it would be better to check that page is owned by "current" io, but
-	 * it is not passed here. */
-	LASSERT(page->cp_owner != NULL);
+	 * it is not passed here.
+	 */
+	LASSERT(page->cp_owner);
 	LINVRNT(plist->pl_owner == current);
 
 	lockdep_off();
@@ -1263,7 +1266,7 @@ EXPORT_SYMBOL(cl_2queue_init_page);
  */
 struct cl_io *cl_io_top(struct cl_io *io)
 {
-	while (io->ci_parent != NULL)
+	while (io->ci_parent)
 		io = io->ci_parent;
 	return io;
 }
@@ -1296,13 +1299,13 @@ static void cl_req_free(const struct lu_env *env, struct cl_req *req)
 	LASSERT(list_empty(&req->crq_pages));
 	LASSERT(req->crq_nrpages == 0);
 	LINVRNT(list_empty(&req->crq_layers));
-	LINVRNT(equi(req->crq_nrobjs > 0, req->crq_o != NULL));
+	LINVRNT(equi(req->crq_nrobjs > 0, req->crq_o));
 
-	if (req->crq_o != NULL) {
+	if (req->crq_o) {
 		for (i = 0; i < req->crq_nrobjs; ++i) {
 			struct cl_object *obj = req->crq_o[i].ro_obj;
 
-			if (obj != NULL) {
+			if (obj) {
 				lu_object_ref_del_at(&obj->co_lu,
 						     &req->crq_o[i].ro_obj_ref,
 						     "cl_req", req);
@@ -1326,7 +1329,7 @@ static int cl_req_init(const struct lu_env *env, struct cl_req *req,
 	do {
 		list_for_each_entry(slice, &page->cp_layers, cpl_linkage) {
 			dev = lu2cl_dev(slice->cpl_obj->co_lu.lo_dev);
-			if (dev->cd_ops->cdo_req_init != NULL) {
+			if (dev->cd_ops->cdo_req_init) {
 				result = dev->cd_ops->cdo_req_init(env,
 								   dev, req);
 				if (result != 0)
@@ -1334,7 +1337,7 @@ static int cl_req_init(const struct lu_env *env, struct cl_req *req,
 			}
 		}
 		page = page->cp_child;
-	} while (page != NULL && result == 0);
+	} while (page && result == 0);
 	return result;
 }
 
@@ -1353,7 +1356,7 @@ void cl_req_completion(const struct lu_env *env, struct cl_req *req, int rc)
 		slice = list_entry(req->crq_layers.prev,
 				       struct cl_req_slice, crs_linkage);
 		list_del_init(&slice->crs_linkage);
-		if (slice->crs_ops->cro_completion != NULL)
+		if (slice->crs_ops->cro_completion)
 			slice->crs_ops->cro_completion(env, slice, rc);
 	}
 	cl_req_free(env, req);
@@ -1371,7 +1374,7 @@ struct cl_req *cl_req_alloc(const struct lu_env *env, struct cl_page *page,
 	LINVRNT(nr_objects > 0);
 
 	req = kzalloc(sizeof(*req), GFP_NOFS);
-	if (req != NULL) {
+	if (req) {
 		int result;
 
 		req->crq_type = crt;
@@ -1380,7 +1383,7 @@ struct cl_req *cl_req_alloc(const struct lu_env *env, struct cl_page *page,
 
 		req->crq_o = kcalloc(nr_objects, sizeof(req->crq_o[0]),
 				     GFP_NOFS);
-		if (req->crq_o != NULL) {
+		if (req->crq_o) {
 			req->crq_nrobjs = nr_objects;
 			result = cl_req_init(env, req, page);
 		} else
@@ -1408,7 +1411,7 @@ void cl_req_page_add(const struct lu_env *env,
 	page = cl_page_top(page);
 
 	LASSERT(list_empty(&page->cp_flight));
-	LASSERT(page->cp_req == NULL);
+	LASSERT(!page->cp_req);
 
 	CL_PAGE_DEBUG(D_PAGE, env, page, "req %p, %d, %u\n",
 		      req, req->crq_type, req->crq_nrpages);
@@ -1418,7 +1421,7 @@ void cl_req_page_add(const struct lu_env *env,
 	page->cp_req = req;
 	obj = cl_object_top(page->cp_obj);
 	for (i = 0, rqo = req->crq_o; obj != rqo->ro_obj; ++i, ++rqo) {
-		if (rqo->ro_obj == NULL) {
+		if (!rqo->ro_obj) {
 			rqo->ro_obj = obj;
 			cl_object_get(obj);
 			lu_object_ref_add_at(&obj->co_lu, &rqo->ro_obj_ref,
@@ -1463,11 +1466,11 @@ int cl_req_prep(const struct lu_env *env, struct cl_req *req)
 	 * of objects.
 	 */
 	for (i = 0; i < req->crq_nrobjs; ++i)
-		LASSERT(req->crq_o[i].ro_obj != NULL);
+		LASSERT(req->crq_o[i].ro_obj);
 
 	result = 0;
 	list_for_each_entry(slice, &req->crq_layers, crs_linkage) {
-		if (slice->crs_ops->cro_prep != NULL) {
+		if (slice->crs_ops->cro_prep) {
 			result = slice->crs_ops->cro_prep(env, slice);
 			if (result != 0)
 				break;
@@ -1501,9 +1504,8 @@ void cl_req_attr_set(const struct lu_env *env, struct cl_req *req,
 
 			scan = cl_page_at(page,
 					  slice->crs_dev->cd_lu_dev.ld_type);
-			LASSERT(scan != NULL);
 			obj = scan->cpl_obj;
-			if (slice->crs_ops->cro_attr_set != NULL)
+			if (slice->crs_ops->cro_attr_set)
 				slice->crs_ops->cro_attr_set(env, slice, obj,
 							     attr + i, flags);
 		}
@@ -1511,9 +1513,6 @@ void cl_req_attr_set(const struct lu_env *env, struct cl_req *req,
 }
 EXPORT_SYMBOL(cl_req_attr_set);
 
-/* XXX complete(), init_completion(), and wait_for_completion(), until they are
- * implemented in libcfs. */
-# include <linux/sched.h>
 
 /**
  * Initialize synchronous io wait anchor, for transfer of \a nrpages pages.
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_lock.c b/drivers/staging/lustre/lustre/obdclass/cl_lock.c
index 1836dc0..7b7f344 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_lock.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_lock.c
@@ -96,7 +96,7 @@ static int cl_lock_invariant(const struct lu_env *env,
 
 	result = atomic_read(&lock->cll_ref) > 0 &&
 		cl_lock_invariant_trusted(env, lock);
-	if (!result && env != NULL)
+	if (!result && env)
 		CL_LOCK_DEBUG(D_ERROR, env, lock, "invariant broken");
 	return result;
 }
@@ -288,7 +288,7 @@ void cl_lock_put(const struct lu_env *env, struct cl_lock *lock)
 
 	LINVRNT(cl_lock_invariant(env, lock));
 	obj = lock->cll_descr.cld_obj;
-	LINVRNT(obj != NULL);
+	LINVRNT(obj);
 
 	CDEBUG(D_TRACE, "releasing reference: %d %p %lu\n",
 	       atomic_read(&lock->cll_ref), lock, RETIP);
@@ -362,7 +362,7 @@ static struct cl_lock *cl_lock_alloc(const struct lu_env *env,
 	struct lu_object_header *head;
 
 	lock = kmem_cache_alloc(cl_lock_kmem, GFP_NOFS | __GFP_ZERO);
-	if (lock != NULL) {
+	if (lock) {
 		atomic_set(&lock->cll_ref, 1);
 		lock->cll_descr = *descr;
 		lock->cll_state = CLS_NEW;
@@ -461,7 +461,7 @@ static int cl_lock_fits_into(const struct lu_env *env,
 
 	LINVRNT(cl_lock_invariant_trusted(env, lock));
 	list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
-		if (slice->cls_ops->clo_fits_into != NULL &&
+		if (slice->cls_ops->clo_fits_into &&
 		    !slice->cls_ops->clo_fits_into(env, slice, need, io))
 			return 0;
 	}
@@ -524,14 +524,14 @@ static struct cl_lock *cl_lock_find(const struct lu_env *env,
 	lock = cl_lock_lookup(env, obj, io, need);
 	spin_unlock(&head->coh_lock_guard);
 
-	if (lock == NULL) {
+	if (!lock) {
 		lock = cl_lock_alloc(env, obj, io, need);
 		if (!IS_ERR(lock)) {
 			struct cl_lock *ghost;
 
 			spin_lock(&head->coh_lock_guard);
 			ghost = cl_lock_lookup(env, obj, io, need);
-			if (ghost == NULL) {
+			if (!ghost) {
 				cl_lock_get_trust(lock);
 				list_add_tail(&lock->cll_linkage,
 						  &head->coh_locks);
@@ -572,7 +572,7 @@ struct cl_lock *cl_lock_peek(const struct lu_env *env, const struct cl_io *io,
 		spin_lock(&head->coh_lock_guard);
 		lock = cl_lock_lookup(env, obj, io, need);
 		spin_unlock(&head->coh_lock_guard);
-		if (lock == NULL)
+		if (!lock)
 			return NULL;
 
 		cl_lock_mutex_get(env, lock);
@@ -584,7 +584,7 @@ struct cl_lock *cl_lock_peek(const struct lu_env *env, const struct cl_io *io,
 			cl_lock_put(env, lock);
 			lock = NULL;
 		}
-	} while (lock == NULL);
+	} while (!lock);
 
 	cl_lock_hold_add(env, lock, scope, source);
 	cl_lock_user_add(env, lock);
@@ -775,7 +775,7 @@ static void cl_lock_cancel0(const struct lu_env *env, struct cl_lock *lock)
 		lock->cll_flags |= CLF_CANCELLED;
 		list_for_each_entry_reverse(slice, &lock->cll_layers,
 						cls_linkage) {
-			if (slice->cls_ops->clo_cancel != NULL)
+			if (slice->cls_ops->clo_cancel)
 				slice->cls_ops->clo_cancel(env, slice);
 		}
 	}
@@ -812,7 +812,7 @@ static void cl_lock_delete0(const struct lu_env *env, struct cl_lock *lock)
 		 */
 		list_for_each_entry_reverse(slice, &lock->cll_layers,
 						cls_linkage) {
-			if (slice->cls_ops->clo_delete != NULL)
+			if (slice->cls_ops->clo_delete)
 				slice->cls_ops->clo_delete(env, slice);
 		}
 		/*
@@ -935,7 +935,8 @@ int cl_lock_state_wait(const struct lu_env *env, struct cl_lock *lock)
 	if (result == 0) {
 		/* To avoid being interrupted by the 'non-fatal' signals
 		 * (SIGCHLD, for instance), we'd block them temporarily.
-		 * LU-305 */
+		 * LU-305
+		 */
 		blocked = cfs_block_sigsinv(LUSTRE_FATAL_SIGS);
 
 		init_waitqueue_entry(&waiter, current);
@@ -946,7 +947,8 @@ int cl_lock_state_wait(const struct lu_env *env, struct cl_lock *lock)
 		LASSERT(cl_lock_nr_mutexed(env) == 0);
 
 		/* Returning ERESTARTSYS instead of EINTR so syscalls
-		 * can be restarted if signals are pending here */
+		 * can be restarted if signals are pending here
+		 */
 		result = -ERESTARTSYS;
 		if (likely(!OBD_FAIL_CHECK(OBD_FAIL_LOCK_STATE_WAIT_INTR))) {
 			schedule();
@@ -974,7 +976,7 @@ static void cl_lock_state_signal(const struct lu_env *env, struct cl_lock *lock,
 	LINVRNT(cl_lock_invariant(env, lock));
 
 	list_for_each_entry(slice, &lock->cll_layers, cls_linkage)
-		if (slice->cls_ops->clo_state != NULL)
+		if (slice->cls_ops->clo_state)
 			slice->cls_ops->clo_state(env, slice, state);
 	wake_up_all(&lock->cll_wq);
 }
@@ -1039,7 +1041,7 @@ static int cl_unuse_try_internal(const struct lu_env *env, struct cl_lock *lock)
 		result = -ENOSYS;
 		list_for_each_entry_reverse(slice, &lock->cll_layers,
 						cls_linkage) {
-			if (slice->cls_ops->clo_unuse != NULL) {
+			if (slice->cls_ops->clo_unuse) {
 				result = slice->cls_ops->clo_unuse(env, slice);
 				if (result != 0)
 					break;
@@ -1072,7 +1074,7 @@ int cl_use_try(const struct lu_env *env, struct cl_lock *lock, int atomic)
 	result = -ENOSYS;
 	state = cl_lock_intransit(env, lock);
 	list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
-		if (slice->cls_ops->clo_use != NULL) {
+		if (slice->cls_ops->clo_use) {
 			result = slice->cls_ops->clo_use(env, slice);
 			if (result != 0)
 				break;
@@ -1125,7 +1127,7 @@ static int cl_enqueue_kick(const struct lu_env *env,
 
 	result = -ENOSYS;
 	list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
-		if (slice->cls_ops->clo_enqueue != NULL) {
+		if (slice->cls_ops->clo_enqueue) {
 			result = slice->cls_ops->clo_enqueue(env,
 							     slice, io, flags);
 			if (result != 0)
@@ -1170,7 +1172,8 @@ int cl_enqueue_try(const struct lu_env *env, struct cl_lock *lock,
 			/* kick layers. */
 			result = cl_enqueue_kick(env, lock, io, flags);
 			/* For AGL case, the cl_lock::cll_state may
-			 * become CLS_HELD already. */
+			 * become CLS_HELD already.
+			 */
 			if (result == 0 && lock->cll_state == CLS_QUEUING)
 				cl_lock_state_set(env, lock, CLS_ENQUEUED);
 			break;
@@ -1215,7 +1218,7 @@ int cl_lock_enqueue_wait(const struct lu_env *env,
 
 	LASSERT(cl_lock_is_mutexed(lock));
 	LASSERT(lock->cll_state == CLS_QUEUING);
-	LASSERT(lock->cll_conflict != NULL);
+	LASSERT(lock->cll_conflict);
 
 	conflict = lock->cll_conflict;
 	lock->cll_conflict = NULL;
@@ -1258,7 +1261,7 @@ static int cl_enqueue_locked(const struct lu_env *env, struct cl_lock *lock,
 	do {
 		result = cl_enqueue_try(env, lock, io, enqflags);
 		if (result == CLO_WAIT) {
-			if (lock->cll_conflict != NULL)
+			if (lock->cll_conflict)
 				result = cl_lock_enqueue_wait(env, lock, 1);
 			else
 				result = cl_lock_state_wait(env, lock);
@@ -1300,7 +1303,8 @@ int cl_unuse_try(const struct lu_env *env, struct cl_lock *lock)
 	}
 
 	/* Only if the lock is in CLS_HELD or CLS_ENQUEUED state, it can hold
-	 * underlying resources. */
+	 * underlying resources.
+	 */
 	if (!(lock->cll_state == CLS_HELD || lock->cll_state == CLS_ENQUEUED)) {
 		cl_lock_user_del(env, lock);
 		return 0;
@@ -1416,7 +1420,7 @@ int cl_wait_try(const struct lu_env *env, struct cl_lock *lock)
 
 		result = -ENOSYS;
 		list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
-			if (slice->cls_ops->clo_wait != NULL) {
+			if (slice->cls_ops->clo_wait) {
 				result = slice->cls_ops->clo_wait(env, slice);
 				if (result != 0)
 					break;
@@ -1449,7 +1453,7 @@ int cl_wait(const struct lu_env *env, struct cl_lock *lock)
 
 	LINVRNT(cl_lock_invariant(env, lock));
 	LASSERTF(lock->cll_state == CLS_ENQUEUED || lock->cll_state == CLS_HELD,
-		 "Wrong state %d \n", lock->cll_state);
+		 "Wrong state %d\n", lock->cll_state);
 	LASSERT(lock->cll_holds > 0);
 
 	do {
@@ -1487,7 +1491,7 @@ unsigned long cl_lock_weigh(const struct lu_env *env, struct cl_lock *lock)
 
 	pound = 0;
 	list_for_each_entry_reverse(slice, &lock->cll_layers, cls_linkage) {
-		if (slice->cls_ops->clo_weigh != NULL) {
+		if (slice->cls_ops->clo_weigh) {
 			ounce = slice->cls_ops->clo_weigh(env, slice);
 			pound += ounce;
 			if (pound < ounce) /* over-weight^Wflow */
@@ -1523,7 +1527,7 @@ int cl_lock_modify(const struct lu_env *env, struct cl_lock *lock,
 	LINVRNT(cl_lock_invariant(env, lock));
 
 	list_for_each_entry_reverse(slice, &lock->cll_layers, cls_linkage) {
-		if (slice->cls_ops->clo_modify != NULL) {
+		if (slice->cls_ops->clo_modify) {
 			result = slice->cls_ops->clo_modify(env, slice, desc);
 			if (result != 0)
 				return result;
@@ -1584,7 +1588,7 @@ int cl_lock_closure_build(const struct lu_env *env, struct cl_lock *lock,
 	result = cl_lock_enclosure(env, lock, closure);
 	if (result == 0) {
 		list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
-			if (slice->cls_ops->clo_closure != NULL) {
+			if (slice->cls_ops->clo_closure) {
 				result = slice->cls_ops->clo_closure(env, slice,
 								     closure);
 				if (result != 0)
@@ -1777,13 +1781,15 @@ struct cl_lock *cl_lock_at_pgoff(const struct lu_env *env,
 	lock = NULL;
 
 	need->cld_mode = CLM_READ; /* CLM_READ matches both READ & WRITE, but
-				    * not PHANTOM */
+				    * not PHANTOM
+				    */
 	need->cld_start = need->cld_end = index;
 	need->cld_enq_flags = 0;
 
 	spin_lock(&head->coh_lock_guard);
 	/* It is fine to match any group lock since there could be only one
-	 * with a uniq gid and it conflicts with all other lock modes too */
+	 * with a uniq gid and it conflicts with all other lock modes too
+	 */
 	list_for_each_entry(scan, &head->coh_locks, cll_linkage) {
 		if (scan != except &&
 		    (scan->cll_descr.cld_mode == CLM_GROUP ||
@@ -1798,7 +1804,8 @@ struct cl_lock *cl_lock_at_pgoff(const struct lu_env *env,
 		    (canceld || !(scan->cll_flags & CLF_CANCELLED)) &&
 		    (pending || !(scan->cll_flags & CLF_CANCELPEND))) {
 			/* Don't increase cs_hit here since this
-			 * is just a helper function. */
+			 * is just a helper function.
+			 */
 			cl_lock_get_trust(scan);
 			lock = scan;
 			break;
@@ -1820,7 +1827,6 @@ static pgoff_t pgoff_at_lock(struct cl_page *page, struct cl_lock *lock)
 
 	dtype = lock->cll_descr.cld_obj->co_lu.lo_dev->ld_type;
 	slice = cl_page_at(page, dtype);
-	LASSERT(slice != NULL);
 	return slice->cpl_page->cp_index;
 }
 
@@ -1840,11 +1846,12 @@ static int check_and_discard_cb(const struct lu_env *env, struct cl_io *io,
 		/* refresh non-overlapped index */
 		tmp = cl_lock_at_pgoff(env, lock->cll_descr.cld_obj, index,
 					lock, 1, 0);
-		if (tmp != NULL) {
+		if (tmp) {
 			/* Cache the first-non-overlapped index so as to skip
 			 * all pages within [index, clt_fn_index). This
 			 * is safe because if tmp lock is canceled, it will
-			 * discard these pages. */
+			 * discard these pages.
+			 */
 			info->clt_fn_index = tmp->cll_descr.cld_end + 1;
 			if (tmp->cll_descr.cld_end == CL_PAGE_EOF)
 				info->clt_fn_index = CL_PAGE_EOF;
@@ -1950,7 +1957,7 @@ void cl_locks_prune(const struct lu_env *env, struct cl_object *obj, int cancel)
 	 * already destroyed (as otherwise they will be left unprotected).
 	 */
 	LASSERT(ergo(!cancel,
-		     head->coh_tree.rnode == NULL && head->coh_pages == 0));
+		     !head->coh_tree.rnode && head->coh_pages == 0));
 
 	spin_lock(&head->coh_lock_guard);
 	while (!list_empty(&head->coh_locks)) {
@@ -2194,7 +2201,7 @@ void cl_lock_print(const struct lu_env *env, void *cookie,
 		(*printer)(env, cookie, "    %s@%p: ",
 			   slice->cls_obj->co_lu.lo_dev->ld_type->ldt_name,
 			   slice);
-		if (slice->cls_ops->clo_print != NULL)
+		if (slice->cls_ops->clo_print)
 			slice->cls_ops->clo_print(env, cookie, printer, slice);
 		(*printer)(env, cookie, "\n");
 	}
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c
index f118983..39b4fd0 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c
@@ -152,7 +152,7 @@ struct cl_object *cl_object_top(struct cl_object *o)
 	struct cl_object_header *hdr = cl_object_header(o);
 	struct cl_object *top;
 
-	while (hdr->coh_parent != NULL)
+	while (hdr->coh_parent)
 		hdr = hdr->coh_parent;
 
 	top = lu2cl(lu_object_top(&hdr->coh_lu));
@@ -217,7 +217,7 @@ int cl_object_attr_get(const struct lu_env *env, struct cl_object *obj,
 	top = obj->co_lu.lo_header;
 	result = 0;
 	list_for_each_entry(obj, &top->loh_layers, co_lu.lo_linkage) {
-		if (obj->co_ops->coo_attr_get != NULL) {
+		if (obj->co_ops->coo_attr_get) {
 			result = obj->co_ops->coo_attr_get(env, obj, attr);
 			if (result != 0) {
 				if (result > 0)
@@ -249,7 +249,7 @@ int cl_object_attr_set(const struct lu_env *env, struct cl_object *obj,
 	result = 0;
 	list_for_each_entry_reverse(obj, &top->loh_layers,
 					co_lu.lo_linkage) {
-		if (obj->co_ops->coo_attr_set != NULL) {
+		if (obj->co_ops->coo_attr_set) {
 			result = obj->co_ops->coo_attr_set(env, obj, attr, v);
 			if (result != 0) {
 				if (result > 0)
@@ -280,7 +280,7 @@ int cl_object_glimpse(const struct lu_env *env, struct cl_object *obj,
 	result = 0;
 	list_for_each_entry_reverse(obj, &top->loh_layers,
 					co_lu.lo_linkage) {
-		if (obj->co_ops->coo_glimpse != NULL) {
+		if (obj->co_ops->coo_glimpse) {
 			result = obj->co_ops->coo_glimpse(env, obj, lvb);
 			if (result != 0)
 				break;
@@ -306,7 +306,7 @@ int cl_conf_set(const struct lu_env *env, struct cl_object *obj,
 	top = obj->co_lu.lo_header;
 	result = 0;
 	list_for_each_entry(obj, &top->loh_layers, co_lu.lo_linkage) {
-		if (obj->co_ops->coo_conf_set != NULL) {
+		if (obj->co_ops->coo_conf_set) {
 			result = obj->co_ops->coo_conf_set(env, obj, conf);
 			if (result != 0)
 				break;
@@ -328,7 +328,7 @@ void cl_object_kill(const struct lu_env *env, struct cl_object *obj)
 	struct cl_object_header *hdr;
 
 	hdr = cl_object_header(obj);
-	LASSERT(hdr->coh_tree.rnode == NULL);
+	LASSERT(!hdr->coh_tree.rnode);
 	LASSERT(hdr->coh_pages == 0);
 
 	set_bit(LU_OBJECT_HEARD_BANSHEE, &hdr->coh_lu.loh_flags);
@@ -541,7 +541,7 @@ static void cl_env_init0(struct cl_env *cle, void *debug)
 {
 	LASSERT(cle->ce_ref == 0);
 	LASSERT(cle->ce_magic == &cl_env_init0);
-	LASSERT(cle->ce_debug == NULL && cle->ce_owner == NULL);
+	LASSERT(!cle->ce_debug && !cle->ce_owner);
 
 	cle->ce_ref = 1;
 	cle->ce_debug = debug;
@@ -576,7 +576,7 @@ static int cl_env_hops_keycmp(const void *key, struct hlist_node *hn)
 {
 	struct cl_env *cle = cl_env_hops_obj(hn);
 
-	LASSERT(cle->ce_owner != NULL);
+	LASSERT(cle->ce_owner);
 	return (key == cle->ce_owner);
 }
 
@@ -610,7 +610,7 @@ static inline void cl_env_attach(struct cl_env *cle)
 	if (cle) {
 		int rc;
 
-		LASSERT(cle->ce_owner == NULL);
+		LASSERT(!cle->ce_owner);
 		cle->ce_owner = (void *) (long) current->pid;
 		rc = cfs_hash_add_unique(cl_env_hash, cle->ce_owner,
 					 &cle->ce_node);
@@ -638,7 +638,7 @@ static int cl_env_store_init(void)
 				      CFS_HASH_MAX_THETA,
 				      &cl_env_hops,
 				      CFS_HASH_RW_BKTLOCK);
-	return cl_env_hash != NULL ? 0 : -ENOMEM;
+	return cl_env_hash ? 0 : -ENOMEM;
 }
 
 static void cl_env_store_fini(void)
@@ -648,7 +648,7 @@ static void cl_env_store_fini(void)
 
 static inline struct cl_env *cl_env_detach(struct cl_env *cle)
 {
-	if (cle == NULL)
+	if (!cle)
 		cle = cl_env_fetch();
 
 	if (cle && cle->ce_owner)
@@ -663,7 +663,7 @@ static struct lu_env *cl_env_new(__u32 ctx_tags, __u32 ses_tags, void *debug)
 	struct cl_env *cle;
 
 	cle = kmem_cache_alloc(cl_env_kmem, GFP_NOFS | __GFP_ZERO);
-	if (cle != NULL) {
+	if (cle) {
 		int rc;
 
 		INIT_LIST_HEAD(&cle->ce_linkage);
@@ -717,7 +717,7 @@ static struct lu_env *cl_env_peek(int *refcheck)
 
 	env = NULL;
 	cle = cl_env_fetch();
-	if (cle != NULL) {
+	if (cle) {
 		CL_ENV_INC(hit);
 		env = &cle->ce_lu;
 		*refcheck = ++cle->ce_ref;
@@ -742,7 +742,7 @@ struct lu_env *cl_env_get(int *refcheck)
 	struct lu_env *env;
 
 	env = cl_env_peek(refcheck);
-	if (env == NULL) {
+	if (!env) {
 		env = cl_env_new(lu_context_tags_default,
 				 lu_session_tags_default,
 				 __builtin_return_address(0));
@@ -769,7 +769,7 @@ struct lu_env *cl_env_alloc(int *refcheck, __u32 tags)
 {
 	struct lu_env *env;
 
-	LASSERT(cl_env_peek(refcheck) == NULL);
+	LASSERT(!cl_env_peek(refcheck));
 	env = cl_env_new(tags, tags, __builtin_return_address(0));
 	if (!IS_ERR(env)) {
 		struct cl_env *cle;
@@ -784,7 +784,7 @@ EXPORT_SYMBOL(cl_env_alloc);
 
 static void cl_env_exit(struct cl_env *cle)
 {
-	LASSERT(cle->ce_owner == NULL);
+	LASSERT(!cle->ce_owner);
 	lu_context_exit(&cle->ce_lu.le_ctx);
 	lu_context_exit(&cle->ce_ses);
 }
@@ -803,7 +803,7 @@ void cl_env_put(struct lu_env *env, int *refcheck)
 	cle = cl_env_container(env);
 
 	LASSERT(cle->ce_ref > 0);
-	LASSERT(ergo(refcheck != NULL, cle->ce_ref == *refcheck));
+	LASSERT(ergo(refcheck, cle->ce_ref == *refcheck));
 
 	CDEBUG(D_OTHER, "%d@%p\n", cle->ce_ref, cle);
 	if (--cle->ce_ref == 0) {
@@ -878,7 +878,7 @@ struct lu_env *cl_env_nested_get(struct cl_env_nest *nest)
 
 	nest->cen_cookie = NULL;
 	env = cl_env_peek(&nest->cen_refcheck);
-	if (env != NULL) {
+	if (env) {
 		if (!cl_io_is_going(env))
 			return env;
 		cl_env_put(env, &nest->cen_refcheck);
@@ -930,14 +930,12 @@ struct cl_device *cl_type_setup(const struct lu_env *env, struct lu_site *site,
 	const char       *typename;
 	struct lu_device *d;
 
-	LASSERT(ldt != NULL);
-
 	typename = ldt->ldt_name;
 	d = ldt->ldt_ops->ldto_device_alloc(env, ldt, NULL);
 	if (!IS_ERR(d)) {
 		int rc;
 
-		if (site != NULL)
+		if (site)
 			d->ld_site = site;
 		rc = ldt->ldt_ops->ldto_device_init(env, d, typename, next);
 		if (rc == 0) {
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c
index 61f28eb..72f9924 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_page.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c
@@ -69,7 +69,7 @@ static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg,
  */
 static struct cl_page *cl_page_top_trusted(struct cl_page *page)
 {
-	while (page->cp_parent != NULL)
+	while (page->cp_parent)
 		page = page->cp_parent;
 	return page;
 }
@@ -110,7 +110,7 @@ cl_page_at_trusted(const struct cl_page *page,
 				return slice;
 		}
 		page = page->cp_child;
-	} while (page != NULL);
+	} while (page);
 	return NULL;
 }
 
@@ -127,7 +127,7 @@ struct cl_page *cl_page_lookup(struct cl_object_header *hdr, pgoff_t index)
 	assert_spin_locked(&hdr->coh_page_guard);
 
 	page = radix_tree_lookup(&hdr->coh_tree, index);
-	if (page != NULL)
+	if (page)
 		cl_page_get_trust(page);
 	return page;
 }
@@ -188,7 +188,7 @@ int cl_page_gang_lookup(const struct lu_env *env, struct cl_object *obj,
 			 * Pages for lsm-less file has no underneath sub-page
 			 * for osc, in case of ...
 			 */
-			PASSERT(env, page, slice != NULL);
+			PASSERT(env, page, slice);
 
 			page = slice->cpl_page;
 			/*
@@ -245,9 +245,9 @@ static void cl_page_free(const struct lu_env *env, struct cl_page *page)
 	struct cl_object *obj  = page->cp_obj;
 
 	PASSERT(env, page, list_empty(&page->cp_batch));
-	PASSERT(env, page, page->cp_owner == NULL);
-	PASSERT(env, page, page->cp_req == NULL);
-	PASSERT(env, page, page->cp_parent == NULL);
+	PASSERT(env, page, !page->cp_owner);
+	PASSERT(env, page, !page->cp_req);
+	PASSERT(env, page, !page->cp_parent);
 	PASSERT(env, page, page->cp_state == CPS_FREEING);
 
 	might_sleep();
@@ -284,7 +284,7 @@ static struct cl_page *cl_page_alloc(const struct lu_env *env,
 	struct lu_object_header *head;
 
 	page = kzalloc(cl_object_header(o)->coh_page_bufsize, GFP_NOFS);
-	if (page != NULL) {
+	if (page) {
 		int result = 0;
 
 		atomic_set(&page->cp_ref, 1);
@@ -305,7 +305,7 @@ static struct cl_page *cl_page_alloc(const struct lu_env *env,
 		head = o->co_lu.lo_header;
 		list_for_each_entry(o, &head->loh_layers,
 					co_lu.lo_linkage) {
-			if (o->co_ops->coo_page_init != NULL) {
+			if (o->co_ops->coo_page_init) {
 				result = o->co_ops->coo_page_init(env, o,
 								  page, vmpage);
 				if (result != 0) {
@@ -369,13 +369,13 @@ static struct cl_page *cl_page_find0(const struct lu_env *env,
 		 */
 		page = cl_vmpage_page(vmpage, o);
 		PINVRNT(env, page,
-			ergo(page != NULL,
+			ergo(page,
 			     cl_page_vmpage(env, page) == vmpage &&
 			     (void *)radix_tree_lookup(&hdr->coh_tree,
 						       idx) == page));
 	}
 
-	if (page != NULL)
+	if (page)
 		return page;
 
 	/* allocate and initialize cl_page */
@@ -385,7 +385,7 @@ static struct cl_page *cl_page_find0(const struct lu_env *env,
 
 	if (type == CPT_TRANSIENT) {
 		if (parent) {
-			LASSERT(page->cp_parent == NULL);
+			LASSERT(!page->cp_parent);
 			page->cp_parent = parent;
 			parent->cp_child = page;
 		}
@@ -418,7 +418,7 @@ static struct cl_page *cl_page_find0(const struct lu_env *env,
 			      "fail to insert into radix tree: %d\n", err);
 	} else {
 		if (parent) {
-			LASSERT(page->cp_parent == NULL);
+			LASSERT(!page->cp_parent);
 			page->cp_parent = parent;
 			parent->cp_child = page;
 		}
@@ -426,7 +426,7 @@ static struct cl_page *cl_page_find0(const struct lu_env *env,
 	}
 	spin_unlock(&hdr->coh_page_guard);
 
-	if (unlikely(ghost != NULL)) {
+	if (unlikely(ghost)) {
 		cl_page_delete0(env, ghost, 0);
 		cl_page_free(env, ghost);
 	}
@@ -467,14 +467,13 @@ static inline int cl_page_invariant(const struct cl_page *pg)
 	owner  = pg->cp_owner;
 
 	return cl_page_in_use(pg) &&
-		ergo(parent != NULL, parent->cp_child == pg) &&
-		ergo(child != NULL, child->cp_parent == pg) &&
-		ergo(child != NULL, pg->cp_obj != child->cp_obj) &&
-		ergo(parent != NULL, pg->cp_obj != parent->cp_obj) &&
-		ergo(owner != NULL && parent != NULL,
+		ergo(parent, parent->cp_child == pg) &&
+		ergo(child, child->cp_parent == pg) &&
+		ergo(child, pg->cp_obj != child->cp_obj) &&
+		ergo(parent, pg->cp_obj != parent->cp_obj) &&
+		ergo(owner && parent,
 		     parent->cp_owner == pg->cp_owner->ci_parent) &&
-		ergo(owner != NULL && child != NULL,
-		     child->cp_owner->ci_parent == owner) &&
+		ergo(owner && child, child->cp_owner->ci_parent == owner) &&
 		/*
 		 * Either page is early in initialization (has neither child
 		 * nor parent yet), or it is in the object radix tree.
@@ -482,7 +481,7 @@ static inline int cl_page_invariant(const struct cl_page *pg)
 		ergo(pg->cp_state < CPS_FREEING && pg->cp_type == CPT_CACHEABLE,
 		     (void *)radix_tree_lookup(&header->coh_tree,
 					       pg->cp_index) == pg ||
-		     (child == NULL && parent == NULL));
+		     (!child && !parent));
 }
 
 static void cl_page_state_set0(const struct lu_env *env,
@@ -535,10 +534,10 @@ static void cl_page_state_set0(const struct lu_env *env,
 	old = page->cp_state;
 	PASSERT(env, page, allowed_transitions[old][state]);
 	CL_PAGE_HEADER(D_TRACE, env, page, "%d -> %d\n", old, state);
-	for (; page != NULL; page = page->cp_child) {
+	for (; page; page = page->cp_child) {
 		PASSERT(env, page, page->cp_state == old);
 		PASSERT(env, page,
-			equi(state == CPS_OWNED, page->cp_owner != NULL));
+			equi(state == CPS_OWNED, page->cp_owner));
 
 		cl_page_state_set_trust(page, state);
 	}
@@ -584,7 +583,7 @@ void cl_page_put(const struct lu_env *env, struct cl_page *page)
 		LASSERT(page->cp_state == CPS_FREEING);
 
 		LASSERT(atomic_read(&page->cp_ref) == 0);
-		PASSERT(env, page, page->cp_owner == NULL);
+		PASSERT(env, page, !page->cp_owner);
 		PASSERT(env, page, list_empty(&page->cp_batch));
 		/*
 		 * Page is no longer reachable by other threads. Tear
@@ -609,11 +608,11 @@ struct page *cl_page_vmpage(const struct lu_env *env, struct cl_page *page)
 	page = cl_page_top(page);
 	do {
 		list_for_each_entry(slice, &page->cp_layers, cpl_linkage) {
-			if (slice->cpl_ops->cpo_vmpage != NULL)
+			if (slice->cpl_ops->cpo_vmpage)
 				return slice->cpl_ops->cpo_vmpage(env, slice);
 		}
 		page = page->cp_child;
-	} while (page != NULL);
+	} while (page);
 	LBUG(); /* ->cpo_vmpage() has to be defined somewhere in the stack */
 }
 EXPORT_SYMBOL(cl_page_vmpage);
@@ -639,10 +638,10 @@ struct cl_page *cl_vmpage_page(struct page *vmpage, struct cl_object *obj)
 	 * can be rectified easily.
 	 */
 	top = (struct cl_page *)vmpage->private;
-	if (top == NULL)
+	if (!top)
 		return NULL;
 
-	for (page = top; page != NULL; page = page->cp_child) {
+	for (page = top; page; page = page->cp_child) {
 		if (cl_object_same(page->cp_obj, obj)) {
 			cl_page_get_trust(page);
 			break;
@@ -689,7 +688,7 @@ EXPORT_SYMBOL(cl_page_at);
 					cpl_linkage) {		  \
 			__method = *(void **)((char *)__scan->cpl_ops + \
 					      __op);		    \
-			if (__method != NULL) {			 \
+			if (__method) {					\
 				__result = (*__method)(__env, __scan,   \
 						       ## __VA_ARGS__); \
 				if (__result != 0)		      \
@@ -697,7 +696,7 @@ EXPORT_SYMBOL(cl_page_at);
 			}					       \
 		}						       \
 		__page = __page->cp_child;			      \
-	} while (__page != NULL && __result == 0);		      \
+	} while (__page && __result == 0);			      \
 	if (__result > 0)					       \
 		__result = 0;					   \
 	__result;						       \
@@ -717,12 +716,12 @@ do {								    \
 					cpl_linkage) {		  \
 			__method = *(void **)((char *)__scan->cpl_ops + \
 					      __op);		    \
-			if (__method != NULL)			   \
+			if (__method)				   \
 				(*__method)(__env, __scan,	      \
 					    ## __VA_ARGS__);	    \
 		}						       \
 		__page = __page->cp_child;			      \
-	} while (__page != NULL);				       \
+	} while (__page);					       \
 } while (0)
 
 #define CL_PAGE_INVOID_REVERSE(_env, _page, _op, _proto, ...)	       \
@@ -734,19 +733,19 @@ do {									\
 	void		      (*__method)_proto;			\
 									    \
 	/* get to the bottom page. */				       \
-	while (__page->cp_child != NULL)				    \
+	while (__page->cp_child)					    \
 		__page = __page->cp_child;				  \
 	do {								\
 		list_for_each_entry_reverse(__scan, &__page->cp_layers, \
 						cpl_linkage) {	      \
 			__method = *(void **)((char *)__scan->cpl_ops +     \
 					      __op);			\
-			if (__method != NULL)			       \
+			if (__method)				       \
 				(*__method)(__env, __scan,		  \
 					    ## __VA_ARGS__);		\
 		}							   \
 		__page = __page->cp_parent;				 \
-	} while (__page != NULL);					   \
+	} while (__page);						   \
 } while (0)
 
 static int cl_page_invoke(const struct lu_env *env,
@@ -772,8 +771,8 @@ static void cl_page_invoid(const struct lu_env *env,
 
 static void cl_page_owner_clear(struct cl_page *page)
 {
-	for (page = cl_page_top(page); page != NULL; page = page->cp_child) {
-		if (page->cp_owner != NULL) {
+	for (page = cl_page_top(page); page; page = page->cp_child) {
+		if (page->cp_owner) {
 			LASSERT(page->cp_owner->ci_owned_nr > 0);
 			page->cp_owner->ci_owned_nr--;
 			page->cp_owner = NULL;
@@ -784,10 +783,8 @@ static void cl_page_owner_clear(struct cl_page *page)
 
 static void cl_page_owner_set(struct cl_page *page)
 {
-	for (page = cl_page_top(page); page != NULL; page = page->cp_child) {
-		LASSERT(page->cp_owner != NULL);
+	for (page = cl_page_top(page); page; page = page->cp_child)
 		page->cp_owner->ci_owned_nr++;
-	}
 }
 
 void cl_page_disown0(const struct lu_env *env,
@@ -862,8 +859,8 @@ static int cl_page_own0(const struct lu_env *env, struct cl_io *io,
 					 struct cl_io *, int),
 					io, nonblock);
 		if (result == 0) {
-			PASSERT(env, pg, pg->cp_owner == NULL);
-			PASSERT(env, pg, pg->cp_req == NULL);
+			PASSERT(env, pg, !pg->cp_owner);
+			PASSERT(env, pg, !pg->cp_req);
 			pg->cp_owner = io;
 			pg->cp_task  = current;
 			cl_page_owner_set(pg);
@@ -921,7 +918,7 @@ void cl_page_assume(const struct lu_env *env,
 	io = cl_io_top(io);
 
 	cl_page_invoid(env, io, pg, CL_PAGE_OP(cpo_assume));
-	PASSERT(env, pg, pg->cp_owner == NULL);
+	PASSERT(env, pg, !pg->cp_owner);
 	pg->cp_owner = io;
 	pg->cp_task = current;
 	cl_page_owner_set(pg);
@@ -1037,7 +1034,7 @@ static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg,
 			 * skip removing it.
 			 */
 			tmp = pg->cp_child;
-		for (; tmp != NULL; tmp = tmp->cp_child) {
+		for (; tmp; tmp = tmp->cp_child) {
 			void		    *value;
 			struct cl_object_header *hdr;
 
@@ -1135,7 +1132,7 @@ int cl_page_is_vmlocked(const struct lu_env *env, const struct cl_page *pg)
 	pg = cl_page_top_trusted((struct cl_page *)pg);
 	slice = container_of(pg->cp_layers.next,
 			     const struct cl_page_slice, cpl_linkage);
-	PASSERT(env, pg, slice->cpl_ops->cpo_is_vmlocked != NULL);
+	PASSERT(env, pg, slice->cpl_ops->cpo_is_vmlocked);
 	/*
 	 * Call ->cpo_is_vmlocked() directly instead of going through
 	 * CL_PAGE_INVOKE(), because cl_page_is_vmlocked() is used by
@@ -1216,7 +1213,7 @@ void cl_page_completion(const struct lu_env *env,
 
 	PASSERT(env, pg, crt < CRT_NR);
 	/* cl_page::cp_req already cleared by the caller (osc_completion()) */
-	PASSERT(env, pg, pg->cp_req == NULL);
+	PASSERT(env, pg, !pg->cp_req);
 	PASSERT(env, pg, pg->cp_state == cl_req_type_state(crt));
 
 	CL_PAGE_HEADER(D_TRACE, env, pg, "%d %d\n", crt, ioret);
@@ -1304,7 +1301,7 @@ int cl_page_cache_add(const struct lu_env *env, struct cl_io *io,
 		return -EINVAL;
 
 	list_for_each_entry(scan, &pg->cp_layers, cpl_linkage) {
-		if (scan->cpl_ops->io[crt].cpo_cache_add == NULL)
+		if (!scan->cpl_ops->io[crt].cpo_cache_add)
 			continue;
 
 		result = scan->cpl_ops->io[crt].cpo_cache_add(env, scan, io);
@@ -1450,8 +1447,8 @@ void cl_page_print(const struct lu_env *env, void *cookie,
 {
 	struct cl_page *scan;
 
-	for (scan = cl_page_top((struct cl_page *)pg);
-	     scan != NULL; scan = scan->cp_child)
+	for (scan = cl_page_top((struct cl_page *)pg); scan;
+	     scan = scan->cp_child)
 		cl_page_header_print(env, cookie, printer, scan);
 	CL_PAGE_INVOKE(env, (struct cl_page *)pg, CL_PAGE_OP(cpo_print),
 		       (const struct lu_env *env,
diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c
index 65cf46c..c1310c2 100644
--- a/drivers/staging/lustre/lustre/obdclass/class_obd.c
+++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c
@@ -42,7 +42,6 @@
 #include "../../include/linux/lnet/lnetctl.h"
 #include "../include/lustre_debug.h"
 #include "../include/lprocfs_status.h"
-#include "../include/lustre/lustre_build_version.h"
 #include <linux/list.h>
 #include "../include/cl_object.h"
 #include "llog_internal.h"
@@ -52,7 +51,7 @@ EXPORT_SYMBOL(obd_devs);
 struct list_head obd_types;
 DEFINE_RWLOCK(obd_dev_lock);
 
-/* The following are visible and mutable through /proc/sys/lustre/. */
+/* The following are visible and mutable through /sys/fs/lustre. */
 unsigned int obd_debug_peer_on_timeout;
 EXPORT_SYMBOL(obd_debug_peer_on_timeout);
 unsigned int obd_dump_on_timeout;
@@ -67,7 +66,7 @@ unsigned int obd_timeout = OBD_TIMEOUT_DEFAULT;   /* seconds */
 EXPORT_SYMBOL(obd_timeout);
 unsigned int obd_timeout_set;
 EXPORT_SYMBOL(obd_timeout_set);
-/* Adaptive timeout defs here instead of ptlrpc module for /proc/sys/ access */
+/* Adaptive timeout defs here instead of ptlrpc module for /sys/fs/ access */
 unsigned int at_min;
 EXPORT_SYMBOL(at_min);
 unsigned int at_max = 600;
@@ -218,14 +217,14 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg)
 			goto out;
 		}
 
-		if (strlen(BUILD_VERSION) + 1 > data->ioc_inllen1) {
+		if (strlen(LUSTRE_VERSION_STRING) + 1 > data->ioc_inllen1) {
 			CERROR("ioctl buffer too small to hold version\n");
 			err = -EINVAL;
 			goto out;
 		}
 
-		memcpy(data->ioc_bulk, BUILD_VERSION,
-		       strlen(BUILD_VERSION) + 1);
+		memcpy(data->ioc_bulk, LUSTRE_VERSION_STRING,
+		       strlen(LUSTRE_VERSION_STRING) + 1);
 
 		err = obd_ioctl_popdata((void __user *)arg, data, len);
 		if (err)
@@ -341,7 +340,7 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg)
 	}
 
 	if (data->ioc_dev == OBD_DEV_BY_DEVNAME) {
-		if (data->ioc_inllen4 <= 0 || data->ioc_inlbuf4 == NULL) {
+		if (data->ioc_inllen4 <= 0 || !data->ioc_inlbuf4) {
 			err = -EINVAL;
 			goto out;
 		}
@@ -358,7 +357,7 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg)
 		goto out;
 	}
 
-	if (obd == NULL) {
+	if (!obd) {
 		CERROR("OBD ioctl : No Device %d\n", data->ioc_dev);
 		err = -EINVAL;
 		goto out;
@@ -481,7 +480,7 @@ static int __init init_obdclass(void)
 
 	int lustre_register_fs(void);
 
-	LCONSOLE_INFO("Lustre: Build Version: "BUILD_VERSION"\n");
+	LCONSOLE_INFO("Lustre: Build Version: " LUSTRE_VERSION_STRING "\n");
 
 	spin_lock_init(&obd_types_lock);
 	obd_zombie_impexp_init();
@@ -509,7 +508,8 @@ static int __init init_obdclass(void)
 
 	/* Default the dirty page cache cap to 1/2 of system memory.
 	 * For clients with less memory, a larger fraction is needed
-	 * for other purposes (mostly for BGL). */
+	 * for other purposes (mostly for BGL).
+	 */
 	if (totalram_pages <= 512 << (20 - PAGE_CACHE_SHIFT))
 		obd_max_dirty_pages = totalram_pages / 4;
 	else
@@ -544,8 +544,6 @@ static int __init init_obdclass(void)
 	return err;
 }
 
-/* liblustre doesn't call cleanup_obdclass, apparently.  we carry on in this
- * ifdef to the end of the file to cover module and versioning goo.*/
 static void cleanup_obdclass(void)
 {
 	int i;
@@ -579,7 +577,7 @@ static void cleanup_obdclass(void)
 }
 
 MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Class Driver Build Version: " BUILD_VERSION);
+MODULE_DESCRIPTION("Lustre Class Driver Build Version: " LUSTRE_VERSION_STRING);
 MODULE_LICENSE("GPL");
 MODULE_VERSION(LUSTRE_VERSION_STRING);
 
diff --git a/drivers/staging/lustre/lustre/obdclass/genops.c b/drivers/staging/lustre/lustre/obdclass/genops.c
index 5665655..9042632 100644
--- a/drivers/staging/lustre/lustre/obdclass/genops.c
+++ b/drivers/staging/lustre/lustre/obdclass/genops.c
@@ -70,17 +70,16 @@ static struct obd_device *obd_device_alloc(void)
 	struct obd_device *obd;
 
 	obd = kmem_cache_alloc(obd_device_cachep, GFP_NOFS | __GFP_ZERO);
-	if (obd != NULL)
+	if (obd)
 		obd->obd_magic = OBD_DEVICE_MAGIC;
 	return obd;
 }
 
 static void obd_device_free(struct obd_device *obd)
 {
-	LASSERT(obd != NULL);
 	LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC, "obd %p obd_magic %08x != %08x\n",
 		 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
-	if (obd->obd_namespace != NULL) {
+	if (obd->obd_namespace) {
 		CERROR("obd %p: namespace %p was not properly cleaned up (obd_force=%d)!\n",
 		       obd, obd->obd_namespace, obd->obd_force);
 		LBUG();
@@ -113,15 +112,6 @@ static struct obd_type *class_get_type(const char *name)
 	if (!type) {
 		const char *modname = name;
 
-		if (strcmp(modname, "obdfilter") == 0)
-			modname = "ofd";
-
-		if (strcmp(modname, LUSTRE_LWP_NAME) == 0)
-			modname = LUSTRE_OSP_NAME;
-
-		if (!strncmp(modname, LUSTRE_MDS_NAME, strlen(LUSTRE_MDS_NAME)))
-			modname = LUSTRE_MDT_NAME;
-
 		if (!request_module("%s", modname)) {
 			CDEBUG(D_INFO, "Loaded module '%s'\n", modname);
 			type = class_search_type(name);
@@ -203,7 +193,7 @@ int class_register_type(struct obd_ops *dt_ops, struct md_ops *md_ops,
 		goto failed;
 	}
 
-	if (ldt != NULL) {
+	if (ldt) {
 		type->typ_lu = ldt;
 		rc = lu_device_type_init(ldt);
 		if (rc != 0)
@@ -365,7 +355,7 @@ void class_release_dev(struct obd_device *obd)
 		 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
 	LASSERTF(obd == obd_devs[obd->obd_minor], "obd %p != obd_devs[%d] %p\n",
 		 obd, obd->obd_minor, obd_devs[obd->obd_minor]);
-	LASSERT(obd_type != NULL);
+	LASSERT(obd_type);
 
 	CDEBUG(D_INFO, "Release obd device %s at %d obd_type name =%s\n",
 	       obd->obd_name, obd->obd_minor, obd->obd_type->typ_name);
@@ -391,7 +381,8 @@ int class_name2dev(const char *name)
 
 		if (obd && strcmp(name, obd->obd_name) == 0) {
 			/* Make sure we finished attaching before we give
-			   out any references */
+			 * out any references
+			 */
 			LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
 			if (obd->obd_attached) {
 				read_unlock(&obd_dev_lock);
@@ -466,8 +457,9 @@ struct obd_device *class_num2obd(int num)
 EXPORT_SYMBOL(class_num2obd);
 
 /* Search for a client OBD connected to tgt_uuid.  If grp_uuid is
-   specified, then only the client with that uuid is returned,
-   otherwise any client connected to the tgt is returned. */
+ * specified, then only the client with that uuid is returned,
+ * otherwise any client connected to the tgt is returned.
+ */
 struct obd_device *class_find_client_obd(struct obd_uuid *tgt_uuid,
 					  const char *typ_name,
 					  struct obd_uuid *grp_uuid)
@@ -498,9 +490,10 @@ struct obd_device *class_find_client_obd(struct obd_uuid *tgt_uuid,
 EXPORT_SYMBOL(class_find_client_obd);
 
 /* Iterate the obd_device list looking devices have grp_uuid. Start
-   searching at *next, and if a device is found, the next index to look
-   at is saved in *next. If next is NULL, then the first matching device
-   will always be returned. */
+ * searching at *next, and if a device is found, the next index to look
+ * at is saved in *next. If next is NULL, then the first matching device
+ * will always be returned.
+ */
 struct obd_device *class_devices_in_group(struct obd_uuid *grp_uuid, int *next)
 {
 	int i;
@@ -659,7 +652,7 @@ static void class_export_destroy(struct obd_export *exp)
 	struct obd_device *obd = exp->exp_obd;
 
 	LASSERT_ATOMIC_ZERO(&exp->exp_refcount);
-	LASSERT(obd != NULL);
+	LASSERT(obd);
 
 	CDEBUG(D_IOCTL, "destroying export %p/%s for %s\n", exp,
 	       exp->exp_client_uuid.uuid, obd->obd_name);
@@ -699,7 +692,6 @@ EXPORT_SYMBOL(class_export_get);
 
 void class_export_put(struct obd_export *exp)
 {
-	LASSERT(exp != NULL);
 	LASSERT_ATOMIC_GT_LT(&exp->exp_refcount, 0, LI_POISON);
 	CDEBUG(D_INFO, "PUTting export %p : new refcount %d\n", exp,
 	       atomic_read(&exp->exp_refcount) - 1);
@@ -719,7 +711,8 @@ EXPORT_SYMBOL(class_export_put);
 
 /* Creates a new export, adds it to the hash table, and returns a
  * pointer to it. The refcount is 2: one for the hash reference, and
- * one for the pointer returned by this function. */
+ * one for the pointer returned by this function.
+ */
 struct obd_export *class_new_export(struct obd_device *obd,
 				    struct obd_uuid *cluuid)
 {
@@ -902,8 +895,9 @@ static void init_imp_at(struct imp_at *at)
 	at_init(&at->iat_net_latency, 0, 0);
 	for (i = 0; i < IMP_AT_MAX_PORTALS; i++) {
 		/* max service estimates are tracked on the server side, so
-		   don't use the AT history here, just use the last reported
-		   val. (But keep hist for proc histogram, worst_ever) */
+		 * don't use the AT history here, just use the last reported
+		 * val. (But keep hist for proc histogram, worst_ever)
+		 */
 		at_init(&at->iat_service_estimate[i], INITIAL_CONNECT_TIMEOUT,
 			AT_FLG_NOHIST);
 	}
@@ -942,7 +936,8 @@ struct obd_import *class_new_import(struct obd_device *obd)
 	init_imp_at(&imp->imp_at);
 
 	/* the default magic is V2, will be used in connect RPC, and
-	 * then adjusted according to the flags in request/reply. */
+	 * then adjusted according to the flags in request/reply.
+	 */
 	imp->imp_msg_magic = LUSTRE_MSG_MAGIC_V2;
 
 	return imp;
@@ -951,7 +946,7 @@ EXPORT_SYMBOL(class_new_import);
 
 void class_destroy_import(struct obd_import *import)
 {
-	LASSERT(import != NULL);
+	LASSERT(import);
 	LASSERT(import != LP_POISON);
 
 	class_handle_unhash(&import->imp_handle);
@@ -971,8 +966,7 @@ void __class_export_add_lock_ref(struct obd_export *exp, struct ldlm_lock *lock)
 
 	LASSERT(lock->l_exp_refs_nr >= 0);
 
-	if (lock->l_exp_refs_target != NULL &&
-	    lock->l_exp_refs_target != exp) {
+	if (lock->l_exp_refs_target && lock->l_exp_refs_target != exp) {
 		LCONSOLE_WARN("setting export %p for lock %p which already has export %p\n",
 			      exp, lock, lock->l_exp_refs_target);
 	}
@@ -1006,17 +1000,18 @@ EXPORT_SYMBOL(__class_export_del_lock_ref);
 #endif
 
 /* A connection defines an export context in which preallocation can
-   be managed. This releases the export pointer reference, and returns
-   the export handle, so the export refcount is 1 when this function
-   returns. */
+ * be managed. This releases the export pointer reference, and returns
+ * the export handle, so the export refcount is 1 when this function
+ * returns.
+ */
 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
 		  struct obd_uuid *cluuid)
 {
 	struct obd_export *export;
 
-	LASSERT(conn != NULL);
-	LASSERT(obd != NULL);
-	LASSERT(cluuid != NULL);
+	LASSERT(conn);
+	LASSERT(obd);
+	LASSERT(cluuid);
 
 	export = class_new_export(obd, cluuid);
 	if (IS_ERR(export))
@@ -1036,7 +1031,8 @@ EXPORT_SYMBOL(class_connect);
  * and if disconnect really need
  * 2 - removing from hash
  * 3 - in client_unlink_export
- * The export pointer passed to this function can destroyed */
+ * The export pointer passed to this function can destroyed
+ */
 int class_disconnect(struct obd_export *export)
 {
 	int already_disconnected;
@@ -1053,7 +1049,8 @@ int class_disconnect(struct obd_export *export)
 
 	/* class_cleanup(), abort_recovery(), and class_fail_export()
 	 * all end up in here, and if any of them race we shouldn't
-	 * call extra class_export_puts(). */
+	 * call extra class_export_puts().
+	 */
 	if (already_disconnected)
 		goto no_disconn;
 
@@ -1093,7 +1090,8 @@ void class_fail_export(struct obd_export *exp)
 
 	/* Most callers into obd_disconnect are removing their own reference
 	 * (request, for example) in addition to the one from the hash table.
-	 * We don't have such a reference here, so make one. */
+	 * We don't have such a reference here, so make one.
+	 */
 	class_export_get(exp);
 	rc = obd_disconnect(exp);
 	if (rc)
@@ -1142,14 +1140,14 @@ static void obd_zombie_impexp_cull(void)
 
 		spin_unlock(&obd_zombie_impexp_lock);
 
-		if (import != NULL) {
+		if (import) {
 			class_import_destroy(import);
 			spin_lock(&obd_zombie_impexp_lock);
 			zombies_count--;
 			spin_unlock(&obd_zombie_impexp_lock);
 		}
 
-		if (export != NULL) {
+		if (export) {
 			class_export_destroy(export);
 			spin_lock(&obd_zombie_impexp_lock);
 			zombies_count--;
@@ -1157,7 +1155,7 @@ static void obd_zombie_impexp_cull(void)
 		}
 
 		cond_resched();
-	} while (import != NULL || export != NULL);
+	} while (import || export);
 }
 
 static struct completion	obd_zombie_start;
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
index 1913f3e..8eddf20 100644
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
+++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
@@ -59,7 +59,6 @@
 #include <linux/highmem.h>
 #include <linux/io.h>
 #include <asm/ioctls.h>
-#include <linux/poll.h>
 #include <linux/uaccess.h>
 #include <linux/miscdevice.h>
 #include <linux/seq_file.h>
@@ -71,7 +70,6 @@
 #include "../../include/obd_class.h"
 #include "../../include/lprocfs_status.h"
 #include "../../include/lustre_ver.h"
-#include "../../include/lustre/lustre_build_version.h"
 
 /* buffer MUST be at least the size of obd_ioctl_hdr */
 int obd_ioctl_getdata(char **buf, int *len, void __user *arg)
@@ -104,9 +102,10 @@ int obd_ioctl_getdata(char **buf, int *len, void __user *arg)
 	/* When there are lots of processes calling vmalloc on multi-core
 	 * system, the high lock contention will hurt performance badly,
 	 * obdfilter-survey is an example, which relies on ioctl. So we'd
-	 * better avoid vmalloc on ioctl path. LU-66 */
+	 * better avoid vmalloc on ioctl path. LU-66
+	 */
 	*buf = libcfs_kvzalloc(hdr.ioc_len, GFP_NOFS);
-	if (*buf == NULL) {
+	if (!*buf) {
 		CERROR("Cannot allocate control buffer of len %d\n",
 		       hdr.ioc_len);
 		return -EINVAL;
@@ -454,8 +453,7 @@ out:
 
 int class_procfs_clean(void)
 {
-	if (debugfs_lustre_root != NULL)
-		debugfs_remove_recursive(debugfs_lustre_root);
+	debugfs_remove_recursive(debugfs_lustre_root);
 
 	debugfs_lustre_root = NULL;
 
diff --git a/drivers/staging/lustre/lustre/obdclass/llog.c b/drivers/staging/lustre/lustre/obdclass/llog.c
index f956d7e..f7ee605 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog.c
@@ -76,8 +76,6 @@ static struct llog_handle *llog_alloc_handle(void)
  */
 static void llog_free_handle(struct llog_handle *loghandle)
 {
-	LASSERT(loghandle != NULL);
-
 	/* failed llog_init_handle */
 	if (!loghandle->lgh_hdr)
 		goto out;
@@ -115,7 +113,7 @@ static int llog_read_header(const struct lu_env *env,
 	if (rc)
 		return rc;
 
-	if (lop->lop_read_header == NULL)
+	if (!lop->lop_read_header)
 		return -EOPNOTSUPP;
 
 	rc = lop->lop_read_header(env, handle);
@@ -144,7 +142,7 @@ int llog_init_handle(const struct lu_env *env, struct llog_handle *handle,
 	struct llog_log_hdr	*llh;
 	int			 rc;
 
-	LASSERT(handle->lgh_hdr == NULL);
+	LASSERT(!handle->lgh_hdr);
 
 	llh = kzalloc(sizeof(*llh), GFP_NOFS);
 	if (!llh)
@@ -228,11 +226,11 @@ static int llog_process_thread(void *arg)
 		return 0;
 	}
 
-	if (cd != NULL) {
+	if (cd) {
 		last_called_index = cd->lpcd_first_idx;
 		index = cd->lpcd_first_idx + 1;
 	}
-	if (cd != NULL && cd->lpcd_last_idx)
+	if (cd && cd->lpcd_last_idx)
 		last_index = cd->lpcd_last_idx;
 	else
 		last_index = LLOG_BITMAP_BYTES * 8 - 1;
@@ -262,7 +260,8 @@ repeat:
 
 		/* NB: when rec->lrh_len is accessed it is already swabbed
 		 * since it is used at the "end" of the loop and the rec
-		 * swabbing is done at the beginning of the loop. */
+		 * swabbing is done at the beginning of the loop.
+		 */
 		for (rec = (struct llog_rec_hdr *)buf;
 		     (char *)rec < buf + LLOG_CHUNK_SIZE;
 		     rec = (struct llog_rec_hdr *)((char *)rec + rec->lrh_len)) {
@@ -328,7 +327,7 @@ repeat:
 	}
 
 out:
-	if (cd != NULL)
+	if (cd)
 		cd->lpcd_last_idx = last_called_index;
 
 	kfree(buf);
@@ -376,17 +375,20 @@ int llog_process_or_fork(const struct lu_env *env,
 	lpi->lpi_catdata   = catdata;
 
 	if (fork) {
+		struct task_struct *task;
+
 		/* The new thread can't use parent env,
-		 * init the new one in llog_process_thread_daemonize. */
+		 * init the new one in llog_process_thread_daemonize.
+		 */
 		lpi->lpi_env = NULL;
 		init_completion(&lpi->lpi_completion);
-		rc = PTR_ERR(kthread_run(llog_process_thread_daemonize, lpi,
-					     "llog_process_thread"));
-		if (IS_ERR_VALUE(rc)) {
+		task = kthread_run(llog_process_thread_daemonize, lpi,
+				   "llog_process_thread");
+		if (IS_ERR(task)) {
+			rc = PTR_ERR(task);
 			CERROR("%s: cannot start thread: rc = %d\n",
 			       loghandle->lgh_ctxt->loc_obd->obd_name, rc);
-			kfree(lpi);
-			return rc;
+			goto out_lpi;
 		}
 		wait_for_completion(&lpi->lpi_completion);
 	} else {
@@ -394,6 +396,7 @@ int llog_process_or_fork(const struct lu_env *env,
 		llog_process_thread(lpi);
 	}
 	rc = lpi->lpi_rc;
+out_lpi:
 	kfree(lpi);
 	return rc;
 }
@@ -416,13 +419,13 @@ int llog_open(const struct lu_env *env, struct llog_ctxt *ctxt,
 	LASSERT(ctxt);
 	LASSERT(ctxt->loc_logops);
 
-	if (ctxt->loc_logops->lop_open == NULL) {
+	if (!ctxt->loc_logops->lop_open) {
 		*lgh = NULL;
 		return -EOPNOTSUPP;
 	}
 
 	*lgh = llog_alloc_handle();
-	if (*lgh == NULL)
+	if (!*lgh)
 		return -ENOMEM;
 	(*lgh)->lgh_ctxt = ctxt;
 	(*lgh)->lgh_logops = ctxt->loc_logops;
@@ -449,7 +452,7 @@ int llog_close(const struct lu_env *env, struct llog_handle *loghandle)
 	rc = llog_handle2ops(loghandle, &lop);
 	if (rc)
 		goto out;
-	if (lop->lop_close == NULL) {
+	if (!lop->lop_close) {
 		rc = -EOPNOTSUPP;
 		goto out;
 	}
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_cat.c b/drivers/staging/lustre/lustre/obdclass/llog_cat.c
index 0f05e9c..b88ccba 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_cat.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_cat.c
@@ -69,7 +69,7 @@ static int llog_cat_id2handle(const struct lu_env *env,
 	struct llog_handle	*loghandle;
 	int			 rc = 0;
 
-	if (cathandle == NULL)
+	if (!cathandle)
 		return -EBADF;
 
 	down_write(&cathandle->lgh_lock);
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_obd.c b/drivers/staging/lustre/lustre/obdclass/llog_obd.c
index 9bc5199..826623f 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_obd.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_obd.c
@@ -88,7 +88,8 @@ int __llog_ctxt_put(const struct lu_env *env, struct llog_ctxt *ctxt)
 	spin_unlock(&obd->obd_dev_lock);
 
 	/* obd->obd_starting is needed for the case of cleanup
-	 * in error case while obd is starting up. */
+	 * in error case while obd is starting up.
+	 */
 	LASSERTF(obd->obd_starting == 1 ||
 		 obd->obd_stopping == 1 || obd->obd_set_up == 0,
 		 "wrong obd state: %d/%d/%d\n", !!obd->obd_starting,
@@ -110,11 +111,8 @@ int llog_cleanup(const struct lu_env *env, struct llog_ctxt *ctxt)
 	struct obd_llog_group *olg;
 	int rc, idx;
 
-	LASSERT(ctxt != NULL);
-	LASSERT(ctxt != LP_POISON);
-
 	olg = ctxt->loc_olg;
-	LASSERT(olg != NULL);
+	LASSERT(olg);
 	LASSERT(olg != LP_POISON);
 
 	idx = ctxt->loc_idx;
@@ -151,7 +149,7 @@ int llog_setup(const struct lu_env *env, struct obd_device *obd,
 	if (index < 0 || index >= LLOG_MAX_CTXTS)
 		return -EINVAL;
 
-	LASSERT(olg != NULL);
+	LASSERT(olg);
 
 	ctxt = llog_new_ctxt(obd);
 	if (!ctxt)
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_swab.c b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
index 7b8379a..967ba2e 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_swab.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
@@ -386,7 +386,8 @@ void lustre_swab_cfg_marker(struct cfg_marker *marker, int swab, int size)
 		 *
 		 * Overwrite fields from the end first, so they are not
 		 * clobbered, and use memmove() instead of memcpy() because
-		 * the source and target buffers overlap.  bug 16771 */
+		 * the source and target buffers overlap.  bug 16771
+		 */
 		createtime = cm32->cm_createtime;
 		canceltime = cm32->cm_canceltime;
 		memmove(marker->cm_comment, cm32->cm_comment, MTI_NAMELEN32);
diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_counters.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_counters.c
index 6acc4a1..13aca5b 100644
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_counters.c
+++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_counters.c
@@ -48,14 +48,15 @@ void lprocfs_counter_add(struct lprocfs_stats *stats, int idx, long amount)
 	int				smp_id;
 	unsigned long			flags = 0;
 
-	if (stats == NULL)
+	if (!stats)
 		return;
 
 	LASSERTF(0 <= idx && idx < stats->ls_num,
 		 "idx %d, ls_num %hu\n", idx, stats->ls_num);
 
 	/* With per-client stats, statistics are allocated only for
-	 * single CPU area, so the smp_id should be 0 always. */
+	 * single CPU area, so the smp_id should be 0 always.
+	 */
 	smp_id = lprocfs_stats_lock(stats, LPROCFS_GET_SMP_ID, &flags);
 	if (smp_id < 0)
 		return;
@@ -96,14 +97,15 @@ void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx, long amount)
 	int				smp_id;
 	unsigned long			flags = 0;
 
-	if (stats == NULL)
+	if (!stats)
 		return;
 
 	LASSERTF(0 <= idx && idx < stats->ls_num,
 		 "idx %d, ls_num %hu\n", idx, stats->ls_num);
 
 	/* With per-client stats, statistics are allocated only for
-	 * single CPU area, so the smp_id should be 0 always. */
+	 * single CPU area, so the smp_id should be 0 always.
+	 */
 	smp_id = lprocfs_stats_lock(stats, LPROCFS_GET_SMP_ID, &flags);
 	if (smp_id < 0)
 		return;
diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
index eda44d8..28bb4e5 100644
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
+++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
@@ -109,7 +109,7 @@ int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep)
 	__u64 mask = 1;
 	int i, ret = 0;
 
-	for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
+	for (i = 0; obd_connect_names[i]; i++, mask <<= 1) {
 		if (flags & mask)
 			ret += snprintf(page + ret, count - ret, "%s%s",
 					ret ? sep : "", obd_connect_names[i]);
@@ -149,10 +149,10 @@ int lprocfs_read_frac_helper(char *buffer, unsigned long count, long val,
 		}
 		/*
 		 * Need to think these cases :
-		 *      1. #echo x.00 > /proc/xxx       output result : x
-		 *      2. #echo x.0x > /proc/xxx       output result : x.0x
-		 *      3. #echo x.x0 > /proc/xxx       output result : x.x
-		 *      4. #echo x.xx > /proc/xxx       output result : x.xx
+		 *      1. #echo x.00 > /sys/xxx       output result : x
+		 *      2. #echo x.0x > /sys/xxx       output result : x.0x
+		 *      3. #echo x.x0 > /sys/xxx       output result : x.x
+		 *      4. #echo x.xx > /sys/xxx       output result : x.xx
 		 *      Only reserved 2 bits fraction.
 		 */
 		for (i = 0; i < (5 - prtn); i++)
@@ -199,7 +199,7 @@ int lprocfs_write_frac_helper(const char __user *buffer, unsigned long count,
 	if (pbuf == end)
 		return -EINVAL;
 
-	if (end != NULL && *end == '.') {
+	if (end && *end == '.') {
 		int temp_val, pow = 1;
 		int i;
 
@@ -247,7 +247,7 @@ struct dentry *ldebugfs_add_simple(struct dentry *root,
 	struct dentry *entry;
 	umode_t mode = 0;
 
-	if (root == NULL || name == NULL || fops == NULL)
+	if (!root || !name || !fops)
 		return ERR_PTR(-EINVAL);
 
 	if (fops->read)
@@ -272,7 +272,7 @@ int ldebugfs_add_vars(struct dentry *parent,
 	if (IS_ERR_OR_NULL(parent) || IS_ERR_OR_NULL(list))
 		return -EINVAL;
 
-	while (list->name != NULL) {
+	while (list->name) {
 		struct dentry *entry;
 		umode_t mode = 0;
 
@@ -491,7 +491,7 @@ int lprocfs_rd_server_uuid(struct seq_file *m, void *data)
 	char *imp_state_name = NULL;
 	int rc;
 
-	LASSERT(obd != NULL);
+	LASSERT(obd);
 	rc = lprocfs_climp_check(obd);
 	if (rc)
 		return rc;
@@ -514,7 +514,7 @@ int lprocfs_rd_conn_uuid(struct seq_file *m, void *data)
 	struct ptlrpc_connection *conn;
 	int rc;
 
-	LASSERT(obd != NULL);
+	LASSERT(obd);
 
 	rc = lprocfs_climp_check(obd);
 	if (rc)
@@ -543,7 +543,7 @@ void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
 
 	memset(cnt, 0, sizeof(*cnt));
 
-	if (stats == NULL) {
+	if (!stats) {
 		/* set count to 1 to avoid divide-by-zero errs in callers */
 		cnt->lc_count = 1;
 		return;
@@ -554,7 +554,7 @@ void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
 	num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
 
 	for (i = 0; i < num_entry; i++) {
-		if (stats->ls_percpu[i] == NULL)
+		if (!stats->ls_percpu[i])
 			continue;
 		percpu_cntr = lprocfs_stats_counter_get(stats, i, idx);
 
@@ -577,7 +577,7 @@ EXPORT_SYMBOL(lprocfs_stats_collect);
 #define flag2str(flag, first)						\
 	do {								\
 		if (imp->imp_##flag)					\
-		     seq_printf(m, "%s" #flag, first ? "" : ", ");	\
+			seq_printf(m, "%s" #flag, first ? "" : ", ");	\
 	} while (0)
 static int obd_import_flags2str(struct obd_import *imp, struct seq_file *m)
 {
@@ -604,7 +604,7 @@ static void obd_connect_seq_flags2str(struct seq_file *m, __u64 flags, char *sep
 	int i;
 	bool first = true;
 
-	for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
+	for (i = 0; obd_connect_names[i]; i++, mask <<= 1) {
 		if (flags & mask) {
 			seq_printf(m, "%s%s",
 					first ? sep : "", obd_connect_names[i]);
@@ -629,7 +629,7 @@ int lprocfs_rd_import(struct seq_file *m, void *data)
 	int				rw	= 0;
 	int				rc;
 
-	LASSERT(obd != NULL);
+	LASSERT(obd);
 	rc = lprocfs_climp_check(obd);
 	if (rc)
 		return rc;
@@ -665,7 +665,7 @@ int lprocfs_rd_import(struct seq_file *m, void *data)
 		seq_printf(m, "%s%s", j ? ", " : "", nidstr);
 		j++;
 	}
-	if (imp->imp_connection != NULL)
+	if (imp->imp_connection)
 		libcfs_nid2str_r(imp->imp_connection->c_peer.nid,
 				 nidstr, sizeof(nidstr));
 	else
@@ -682,7 +682,7 @@ int lprocfs_rd_import(struct seq_file *m, void *data)
 		      atomic_read(&imp->imp_inval_count));
 	spin_unlock(&imp->imp_lock);
 
-	if (obd->obd_svc_stats == NULL)
+	if (!obd->obd_svc_stats)
 		goto out_climp;
 
 	header = &obd->obd_svc_stats->ls_cnt_header[PTLRPC_REQWAIT_CNTR];
@@ -779,7 +779,7 @@ int lprocfs_rd_state(struct seq_file *m, void *data)
 	struct obd_import *imp;
 	int j, k, rc;
 
-	LASSERT(obd != NULL);
+	LASSERT(obd);
 	rc = lprocfs_climp_check(obd);
 	if (rc)
 		return rc;
@@ -825,7 +825,7 @@ int lprocfs_rd_timeouts(struct seq_file *m, void *data)
 	struct dhms ts;
 	int i, rc;
 
-	LASSERT(obd != NULL);
+	LASSERT(obd);
 	rc = lprocfs_climp_check(obd);
 	if (rc)
 		return rc;
@@ -967,12 +967,12 @@ int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid)
 	unsigned long           flags = 0;
 	int                     i;
 
-	LASSERT(stats->ls_percpu[cpuid] == NULL);
+	LASSERT(!stats->ls_percpu[cpuid]);
 	LASSERT((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0);
 
 	percpusize = lprocfs_stats_counter_size(stats);
 	LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[cpuid], percpusize);
-	if (stats->ls_percpu[cpuid] != NULL) {
+	if (stats->ls_percpu[cpuid]) {
 		rc = 0;
 		if (unlikely(stats->ls_biggest_alloc_num <= cpuid)) {
 			if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
@@ -1017,7 +1017,7 @@ struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
 
 	/* alloc percpu pointers for all possible cpu slots */
 	LIBCFS_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_entry]));
-	if (stats == NULL)
+	if (!stats)
 		return NULL;
 
 	stats->ls_num = num;
@@ -1027,14 +1027,14 @@ struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
 	/* alloc num of counter headers */
 	LIBCFS_ALLOC(stats->ls_cnt_header,
 		     stats->ls_num * sizeof(struct lprocfs_counter_header));
-	if (stats->ls_cnt_header == NULL)
+	if (!stats->ls_cnt_header)
 		goto fail;
 
 	if ((flags & LPROCFS_STATS_FLAG_NOPERCPU) != 0) {
 		/* contains only one set counters */
 		percpusize = lprocfs_stats_counter_size(stats);
 		LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[0], percpusize);
-		if (stats->ls_percpu[0] == NULL)
+		if (!stats->ls_percpu[0])
 			goto fail;
 		stats->ls_biggest_alloc_num = 1;
 	} else if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0) {
@@ -1059,7 +1059,7 @@ void lprocfs_free_stats(struct lprocfs_stats **statsh)
 	unsigned int percpusize;
 	unsigned int i;
 
-	if (stats == NULL || stats->ls_num == 0)
+	if (!stats || stats->ls_num == 0)
 		return;
 	*statsh = NULL;
 
@@ -1070,9 +1070,9 @@ void lprocfs_free_stats(struct lprocfs_stats **statsh)
 
 	percpusize = lprocfs_stats_counter_size(stats);
 	for (i = 0; i < num_entry; i++)
-		if (stats->ls_percpu[i] != NULL)
+		if (stats->ls_percpu[i])
 			LIBCFS_FREE(stats->ls_percpu[i], percpusize);
-	if (stats->ls_cnt_header != NULL)
+	if (stats->ls_cnt_header)
 		LIBCFS_FREE(stats->ls_cnt_header, stats->ls_num *
 					sizeof(struct lprocfs_counter_header));
 	LIBCFS_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_entry]));
@@ -1090,7 +1090,7 @@ void lprocfs_clear_stats(struct lprocfs_stats *stats)
 	num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
 
 	for (i = 0; i < num_entry; i++) {
-		if (stats->ls_percpu[i] == NULL)
+		if (!stats->ls_percpu[i])
 			continue;
 		for (j = 0; j < stats->ls_num; j++) {
 			percpu_cntr = lprocfs_stats_counter_get(stats, i, j);
@@ -1230,10 +1230,8 @@ void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
 	unsigned int			i;
 	unsigned int			num_cpu;
 
-	LASSERT(stats != NULL);
-
 	header = &stats->ls_cnt_header[index];
-	LASSERTF(header != NULL, "Failed to allocate stats header:[%d]%s/%s\n",
+	LASSERTF(header, "Failed to allocate stats header:[%d]%s/%s\n",
 		 index, name, units);
 
 	header->lc_config = conf;
@@ -1242,7 +1240,7 @@ void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
 
 	num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
 	for (i = 0; i < num_cpu; ++i) {
-		if (stats->ls_percpu[i] == NULL)
+		if (!stats->ls_percpu[i])
 			continue;
 		percpu_cntr = lprocfs_stats_counter_get(stats, i, index);
 		percpu_cntr->lc_count		= 0;
@@ -1270,7 +1268,7 @@ __s64 lprocfs_read_helper(struct lprocfs_counter *lc,
 {
 	__s64 ret = 0;
 
-	if (lc == NULL || header == NULL)
+	if (!lc || !header)
 		return 0;
 
 	switch (field) {
@@ -1412,7 +1410,7 @@ char *lprocfs_find_named_value(const char *buffer, const char *name,
 
 	/* there is no strnstr() in rhel5 and ubuntu kernels */
 	val = lprocfs_strnstr(buffer, name, buflen);
-	if (val == NULL)
+	if (!val)
 		return (char *)buffer;
 
 	val += strlen(name);			     /* skip prefix */
diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c
index ce248f4..0fa4bac 100644
--- a/drivers/staging/lustre/lustre/obdclass/lu_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c
@@ -86,13 +86,12 @@ void lu_object_put(const struct lu_env *env, struct lu_object *o)
 	 */
 	fid = lu_object_fid(o);
 	if (fid_is_zero(fid)) {
-		LASSERT(top->loh_hash.next == NULL
-			&& top->loh_hash.pprev == NULL);
+		LASSERT(!top->loh_hash.next && !top->loh_hash.pprev);
 		LASSERT(list_empty(&top->loh_lru));
 		if (!atomic_dec_and_test(&top->loh_ref))
 			return;
 		list_for_each_entry_reverse(o, &top->loh_layers, lo_linkage) {
-			if (o->lo_ops->loo_object_release != NULL)
+			if (o->lo_ops->loo_object_release)
 				o->lo_ops->loo_object_release(env, o);
 		}
 		lu_object_free(env, orig);
@@ -119,7 +118,7 @@ void lu_object_put(const struct lu_env *env, struct lu_object *o)
 	 * layers, and notify them that object is no longer busy.
 	 */
 	list_for_each_entry_reverse(o, &top->loh_layers, lo_linkage) {
-		if (o->lo_ops->loo_object_release != NULL)
+		if (o->lo_ops->loo_object_release)
 			o->lo_ops->loo_object_release(env, o);
 	}
 
@@ -210,7 +209,7 @@ static struct lu_object *lu_object_alloc(const struct lu_env *env,
 	 * lu_object_header.
 	 */
 	top = dev->ld_ops->ldo_object_alloc(env, NULL, dev);
-	if (top == NULL)
+	if (!top)
 		return ERR_PTR(-ENOMEM);
 	if (IS_ERR(top))
 		return top;
@@ -245,7 +244,7 @@ next:
 	} while (!clean);
 
 	list_for_each_entry_reverse(scan, layers, lo_linkage) {
-		if (scan->lo_ops->loo_object_start != NULL) {
+		if (scan->lo_ops->loo_object_start) {
 			result = scan->lo_ops->loo_object_start(env, scan);
 			if (result != 0) {
 				lu_object_free(env, top);
@@ -276,7 +275,7 @@ static void lu_object_free(const struct lu_env *env, struct lu_object *o)
 	 * First call ->loo_object_delete() method to release all resources.
 	 */
 	list_for_each_entry_reverse(scan, layers, lo_linkage) {
-		if (scan->lo_ops->loo_object_delete != NULL)
+		if (scan->lo_ops->loo_object_delete)
 			scan->lo_ops->loo_object_delete(env, scan);
 	}
 
@@ -296,7 +295,6 @@ static void lu_object_free(const struct lu_env *env, struct lu_object *o)
 		 */
 		o = container_of0(splice.prev, struct lu_object, lo_linkage);
 		list_del_init(&o->lo_linkage);
-		LASSERT(o->lo_ops->loo_object_free != NULL);
 		o->lo_ops->loo_object_free(env, o);
 	}
 
@@ -451,7 +449,6 @@ int lu_cdebug_printer(const struct lu_env *env,
 	va_start(args, format);
 
 	key = lu_context_key_get(&env->le_ctx, &lu_global_key);
-	LASSERT(key != NULL);
 
 	used = strlen(key->lck_area);
 	complete = format[strlen(format) - 1] == '\n';
@@ -508,7 +505,7 @@ void lu_object_print(const struct lu_env *env, void *cookie,
 		(*printer)(env, cookie, "%*.*s%s@%p", depth, depth, ruler,
 			   o->lo_dev->ld_type->ldt_name, o);
 
-		if (o->lo_ops->loo_object_print != NULL)
+		if (o->lo_ops->loo_object_print)
 			(*o->lo_ops->loo_object_print)(env, cookie, printer, o);
 
 		(*printer)(env, cookie, "\n");
@@ -535,9 +532,10 @@ static struct lu_object *htable_lookup(struct lu_site *s,
 	*version = ver;
 	bkt = cfs_hash_bd_extra_get(s->ls_obj_hash, bd);
 	/* cfs_hash_bd_peek_locked is a somehow "internal" function
-	 * of cfs_hash, it doesn't add refcount on object. */
+	 * of cfs_hash, it doesn't add refcount on object.
+	 */
 	hnode = cfs_hash_bd_peek_locked(s->ls_obj_hash, bd, (void *)f);
-	if (hnode == NULL) {
+	if (!hnode) {
 		lprocfs_counter_incr(s->ls_stats, LU_SS_CACHE_MISS);
 		return ERR_PTR(-ENOENT);
 	}
@@ -636,7 +634,7 @@ static struct lu_object *lu_object_find_try(const struct lu_env *env,
 	 * If dying object is found during index search, add @waiter to the
 	 * site wait-queue and return ERR_PTR(-EAGAIN).
 	 */
-	if (conf != NULL && conf->loc_flags & LOC_F_NEW)
+	if (conf && conf->loc_flags & LOC_F_NEW)
 		return lu_object_new(env, dev, f, conf);
 
 	s  = dev->ld_site;
@@ -715,7 +713,7 @@ struct lu_object *lu_object_find_slice(const struct lu_env *env,
 	top = lu_object_find(env, dev, f, conf);
 	if (!IS_ERR(top)) {
 		obj = lu_object_locate(top->lo_header, dev->ld_type);
-		if (obj == NULL)
+		if (!obj)
 			lu_object_put(env, top);
 	} else
 		obj = top;
@@ -966,11 +964,11 @@ int lu_site_init(struct lu_site *s, struct lu_device *top)
 						 CFS_HASH_NO_ITEMREF |
 						 CFS_HASH_DEPTH |
 						 CFS_HASH_ASSERT_EMPTY);
-		if (s->ls_obj_hash != NULL)
+		if (s->ls_obj_hash)
 			break;
 	}
 
-	if (s->ls_obj_hash == NULL) {
+	if (!s->ls_obj_hash) {
 		CERROR("failed to create lu_site hash with bits: %d\n", bits);
 		return -ENOMEM;
 	}
@@ -982,7 +980,7 @@ int lu_site_init(struct lu_site *s, struct lu_device *top)
 	}
 
 	s->ls_stats = lprocfs_alloc_stats(LU_SS_LAST_STAT, 0);
-	if (s->ls_stats == NULL) {
+	if (!s->ls_stats) {
 		cfs_hash_putref(s->ls_obj_hash);
 		s->ls_obj_hash = NULL;
 		return -ENOMEM;
@@ -1031,19 +1029,19 @@ void lu_site_fini(struct lu_site *s)
 	list_del_init(&s->ls_linkage);
 	mutex_unlock(&lu_sites_guard);
 
-	if (s->ls_obj_hash != NULL) {
+	if (s->ls_obj_hash) {
 		cfs_hash_putref(s->ls_obj_hash);
 		s->ls_obj_hash = NULL;
 	}
 
-	if (s->ls_top_dev != NULL) {
+	if (s->ls_top_dev) {
 		s->ls_top_dev->ld_site = NULL;
 		lu_ref_del(&s->ls_top_dev->ld_reference, "site-top", s);
 		lu_device_put(s->ls_top_dev);
 		s->ls_top_dev = NULL;
 	}
 
-	if (s->ls_stats != NULL)
+	if (s->ls_stats)
 		lprocfs_free_stats(&s->ls_stats);
 }
 EXPORT_SYMBOL(lu_site_fini);
@@ -1088,7 +1086,7 @@ EXPORT_SYMBOL(lu_device_put);
  */
 int lu_device_init(struct lu_device *d, struct lu_device_type *t)
 {
-	if (t->ldt_device_nr++ == 0 && t->ldt_ops->ldto_start != NULL)
+	if (t->ldt_device_nr++ == 0 && t->ldt_ops->ldto_start)
 		t->ldt_ops->ldto_start(t);
 	memset(d, 0, sizeof(*d));
 	atomic_set(&d->ld_ref, 0);
@@ -1107,7 +1105,7 @@ void lu_device_fini(struct lu_device *d)
 	struct lu_device_type *t;
 
 	t = d->ld_type;
-	if (d->ld_obd != NULL) {
+	if (d->ld_obd) {
 		d->ld_obd->obd_lu_dev = NULL;
 		d->ld_obd = NULL;
 	}
@@ -1116,7 +1114,7 @@ void lu_device_fini(struct lu_device *d)
 	LASSERTF(atomic_read(&d->ld_ref) == 0,
 		 "Refcount is %u\n", atomic_read(&d->ld_ref));
 	LASSERT(t->ldt_device_nr > 0);
-	if (--t->ldt_device_nr == 0 && t->ldt_ops->ldto_stop != NULL)
+	if (--t->ldt_device_nr == 0 && t->ldt_ops->ldto_stop)
 		t->ldt_ops->ldto_stop(t);
 }
 EXPORT_SYMBOL(lu_device_fini);
@@ -1148,7 +1146,7 @@ void lu_object_fini(struct lu_object *o)
 
 	LASSERT(list_empty(&o->lo_linkage));
 
-	if (dev != NULL) {
+	if (dev) {
 		lu_ref_del_at(&dev->ld_reference, &o->lo_dev_ref,
 			      "lu_object", o);
 		lu_device_put(dev);
@@ -1239,7 +1237,7 @@ void lu_stack_fini(const struct lu_env *env, struct lu_device *top)
 	struct lu_device *next;
 
 	lu_site_purge(env, site, ~0);
-	for (scan = top; scan != NULL; scan = next) {
+	for (scan = top; scan; scan = next) {
 		next = scan->ld_type->ldt_ops->ldto_device_fini(env, scan);
 		lu_ref_del(&scan->ld_reference, "lu-stack", &lu_site_init);
 		lu_device_put(scan);
@@ -1248,13 +1246,13 @@ void lu_stack_fini(const struct lu_env *env, struct lu_device *top)
 	/* purge again. */
 	lu_site_purge(env, site, ~0);
 
-	for (scan = top; scan != NULL; scan = next) {
+	for (scan = top; scan; scan = next) {
 		const struct lu_device_type *ldt = scan->ld_type;
 		struct obd_type	     *type;
 
 		next = ldt->ldt_ops->ldto_device_free(env, scan);
 		type = ldt->ldt_obd_type;
-		if (type != NULL) {
+		if (type) {
 			type->typ_refcnt--;
 			class_put_type(type);
 		}
@@ -1289,14 +1287,14 @@ int lu_context_key_register(struct lu_context_key *key)
 	int result;
 	int i;
 
-	LASSERT(key->lct_init != NULL);
-	LASSERT(key->lct_fini != NULL);
+	LASSERT(key->lct_init);
+	LASSERT(key->lct_fini);
 	LASSERT(key->lct_tags != 0);
 
 	result = -ENFILE;
 	spin_lock(&lu_keys_guard);
 	for (i = 0; i < ARRAY_SIZE(lu_keys); ++i) {
-		if (lu_keys[i] == NULL) {
+		if (!lu_keys[i]) {
 			key->lct_index = i;
 			atomic_set(&key->lct_used, 1);
 			lu_keys[i] = key;
@@ -1313,12 +1311,10 @@ EXPORT_SYMBOL(lu_context_key_register);
 
 static void key_fini(struct lu_context *ctx, int index)
 {
-	if (ctx->lc_value != NULL && ctx->lc_value[index] != NULL) {
+	if (ctx->lc_value && ctx->lc_value[index]) {
 		struct lu_context_key *key;
 
 		key = lu_keys[index];
-		LASSERT(key != NULL);
-		LASSERT(key->lct_fini != NULL);
 		LASSERT(atomic_read(&key->lct_used) > 1);
 
 		key->lct_fini(ctx, key, ctx->lc_value[index]);
@@ -1376,7 +1372,7 @@ int lu_context_key_register_many(struct lu_context_key *k, ...)
 		if (result)
 			break;
 		key = va_arg(args, struct lu_context_key *);
-	} while (key != NULL);
+	} while (key);
 	va_end(args);
 
 	if (result != 0) {
@@ -1404,7 +1400,7 @@ void lu_context_key_degister_many(struct lu_context_key *k, ...)
 	do {
 		lu_context_key_degister(k);
 		k = va_arg(args, struct lu_context_key*);
-	} while (k != NULL);
+	} while (k);
 	va_end(args);
 }
 EXPORT_SYMBOL(lu_context_key_degister_many);
@@ -1420,7 +1416,7 @@ void lu_context_key_revive_many(struct lu_context_key *k, ...)
 	do {
 		lu_context_key_revive(k);
 		k = va_arg(args, struct lu_context_key*);
-	} while (k != NULL);
+	} while (k);
 	va_end(args);
 }
 EXPORT_SYMBOL(lu_context_key_revive_many);
@@ -1436,7 +1432,7 @@ void lu_context_key_quiesce_many(struct lu_context_key *k, ...)
 	do {
 		lu_context_key_quiesce(k);
 		k = va_arg(args, struct lu_context_key*);
-	} while (k != NULL);
+	} while (k);
 	va_end(args);
 }
 EXPORT_SYMBOL(lu_context_key_quiesce_many);
@@ -1497,7 +1493,7 @@ static void keys_fini(struct lu_context *ctx)
 {
 	int	i;
 
-	if (ctx->lc_value == NULL)
+	if (!ctx->lc_value)
 		return;
 
 	for (i = 0; i < ARRAY_SIZE(lu_keys); ++i)
@@ -1511,12 +1507,12 @@ static int keys_fill(struct lu_context *ctx)
 {
 	int i;
 
-	LINVRNT(ctx->lc_value != NULL);
+	LINVRNT(ctx->lc_value);
 	for (i = 0; i < ARRAY_SIZE(lu_keys); ++i) {
 		struct lu_context_key *key;
 
 		key = lu_keys[i];
-		if (ctx->lc_value[i] == NULL && key != NULL &&
+		if (!ctx->lc_value[i] && key &&
 		    (key->lct_tags & ctx->lc_tags) &&
 		    /*
 		     * Don't create values for a LCT_QUIESCENT key, as this
@@ -1525,7 +1521,7 @@ static int keys_fill(struct lu_context *ctx)
 		    !(key->lct_tags & LCT_QUIESCENT)) {
 			void *value;
 
-			LINVRNT(key->lct_init != NULL);
+			LINVRNT(key->lct_init);
 			LINVRNT(key->lct_index == i);
 
 			value = key->lct_init(ctx, key);
@@ -1542,7 +1538,7 @@ static int keys_fill(struct lu_context *ctx)
 			 * value.
 			 */
 			ctx->lc_value[i] = value;
-			if (key->lct_exit != NULL)
+			if (key->lct_exit)
 				ctx->lc_tags |= LCT_HAS_EXIT;
 		}
 		ctx->lc_version = key_set_version;
@@ -1554,7 +1550,7 @@ static int keys_init(struct lu_context *ctx)
 {
 	ctx->lc_value = kcalloc(ARRAY_SIZE(lu_keys), sizeof(ctx->lc_value[0]),
 				GFP_NOFS);
-	if (likely(ctx->lc_value != NULL))
+	if (likely(ctx->lc_value))
 		return keys_fill(ctx);
 
 	return -ENOMEM;
@@ -1626,14 +1622,13 @@ void lu_context_exit(struct lu_context *ctx)
 
 	LINVRNT(ctx->lc_state == LCS_ENTERED);
 	ctx->lc_state = LCS_LEFT;
-	if (ctx->lc_tags & LCT_HAS_EXIT && ctx->lc_value != NULL) {
+	if (ctx->lc_tags & LCT_HAS_EXIT && ctx->lc_value) {
 		for (i = 0; i < ARRAY_SIZE(lu_keys); ++i) {
-			if (ctx->lc_value[i] != NULL) {
+			if (ctx->lc_value[i]) {
 				struct lu_context_key *key;
 
 				key = lu_keys[i];
-				LASSERT(key != NULL);
-				if (key->lct_exit != NULL)
+				if (key->lct_exit)
 					key->lct_exit(ctx,
 						      key, ctx->lc_value[i]);
 			}
@@ -1688,7 +1683,7 @@ int lu_env_refill(struct lu_env *env)
 	int result;
 
 	result = lu_context_refill(&env->le_ctx);
-	if (result == 0 && env->le_ses != NULL)
+	if (result == 0 && env->le_ses)
 		result = lu_context_refill(env->le_ses);
 	return result;
 }
@@ -1922,11 +1917,11 @@ int lu_kmem_init(struct lu_kmem_descr *caches)
 	int result;
 	struct lu_kmem_descr *iter = caches;
 
-	for (result = 0; iter->ckd_cache != NULL; ++iter) {
+	for (result = 0; iter->ckd_cache; ++iter) {
 		*iter->ckd_cache = kmem_cache_create(iter->ckd_name,
 							iter->ckd_size,
 							0, 0, NULL);
-		if (*iter->ckd_cache == NULL) {
+		if (!*iter->ckd_cache) {
 			result = -ENOMEM;
 			/* free all previously allocated caches */
 			lu_kmem_fini(caches);
@@ -1943,7 +1938,7 @@ EXPORT_SYMBOL(lu_kmem_init);
  */
 void lu_kmem_fini(struct lu_kmem_descr *caches)
 {
-	for (; caches->ckd_cache != NULL; ++caches) {
+	for (; caches->ckd_cache; ++caches) {
 		kmem_cache_destroy(*caches->ckd_cache);
 		*caches->ckd_cache = NULL;
 	}
diff --git a/drivers/staging/lustre/lustre/obdclass/lustre_handles.c b/drivers/staging/lustre/lustre/obdclass/lustre_handles.c
index fb9147c..403ceea 100644
--- a/drivers/staging/lustre/lustre/obdclass/lustre_handles.c
+++ b/drivers/staging/lustre/lustre/obdclass/lustre_handles.c
@@ -65,7 +65,7 @@ void class_handle_hash(struct portals_handle *h,
 {
 	struct handle_bucket *bucket;
 
-	LASSERT(h != NULL);
+	LASSERT(h);
 	LASSERT(list_empty(&h->h_link));
 
 	/*
@@ -140,10 +140,11 @@ void *class_handle2object(__u64 cookie)
 	struct portals_handle *h;
 	void *retval = NULL;
 
-	LASSERT(handle_hash != NULL);
+	LASSERT(handle_hash);
 
 	/* Be careful when you want to change this code. See the
-	 * rcu_read_lock() definition on top this file. - jxiong */
+	 * rcu_read_lock() definition on top this file. - jxiong
+	 */
 	bucket = handle_hash + (cookie & HANDLE_HASH_MASK);
 
 	rcu_read_lock();
@@ -170,7 +171,7 @@ void class_handle_free_cb(struct rcu_head *rcu)
 	struct portals_handle *h = RCU2HANDLE(rcu);
 	void *ptr = (void *)(unsigned long)h->h_cookie;
 
-	if (h->h_ops->hop_free != NULL)
+	if (h->h_ops->hop_free)
 		h->h_ops->hop_free(ptr, h->h_size);
 	else
 		kfree(ptr);
@@ -183,11 +184,11 @@ int class_handle_init(void)
 	struct timespec64 ts;
 	int seed[2];
 
-	LASSERT(handle_hash == NULL);
+	LASSERT(!handle_hash);
 
 	handle_hash = libcfs_kvzalloc(sizeof(*bucket) * HANDLE_HASH_SIZE,
 				      GFP_NOFS);
-	if (handle_hash == NULL)
+	if (!handle_hash)
 		return -ENOMEM;
 
 	spin_lock_init(&handle_base_lock);
@@ -234,7 +235,7 @@ void class_handle_cleanup(void)
 {
 	int count;
 
-	LASSERT(handle_hash != NULL);
+	LASSERT(handle_hash);
 
 	count = cleanup_all_handles();
 
diff --git a/drivers/staging/lustre/lustre/obdclass/lustre_peer.c b/drivers/staging/lustre/lustre/obdclass/lustre_peer.c
index d6184f8..b10ea31 100644
--- a/drivers/staging/lustre/lustre/obdclass/lustre_peer.c
+++ b/drivers/staging/lustre/lustre/obdclass/lustre_peer.c
@@ -93,7 +93,8 @@ int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index)
 EXPORT_SYMBOL(lustre_uuid_to_peer);
 
 /* Add a nid to a niduuid.  Multiple nids can be added to a single uuid;
-   LNET will choose the best one. */
+ * LNET will choose the best one.
+ */
 int class_add_uuid(const char *uuid, __u64 nid)
 {
 	struct uuid_nid_data *data, *entry;
@@ -151,7 +152,7 @@ int class_del_uuid(const char *uuid)
 	struct uuid_nid_data *data;
 
 	spin_lock(&g_uuid_lock);
-	if (uuid != NULL) {
+	if (uuid) {
 		struct obd_uuid tmp;
 
 		obd_str2uuid(&tmp, uuid);
@@ -165,7 +166,7 @@ int class_del_uuid(const char *uuid)
 		list_splice_init(&g_uuid_list, &deathrow);
 	spin_unlock(&g_uuid_lock);
 
-	if (uuid != NULL && list_empty(&deathrow)) {
+	if (uuid && list_empty(&deathrow)) {
 		CDEBUG(D_INFO, "Try to delete a non-existent uuid %s\n", uuid);
 		return -EINVAL;
 	}
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c
index 49cdc64..2134b60 100644
--- a/drivers/staging/lustre/lustre/obdclass/obd_config.c
+++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c
@@ -71,8 +71,9 @@ int class_find_param(char *buf, char *key, char **valp)
 EXPORT_SYMBOL(class_find_param);
 
 /* returns 0 if this is the first key in the buffer, else 1.
-   valp points to first char after key. */
-static int class_match_param(char *buf, char *key, char **valp)
+ * valp points to first char after key.
+ */
+static int class_match_param(char *buf, const char *key, char **valp)
 {
 	if (!buf)
 		return 1;
@@ -114,9 +115,10 @@ enum {
 };
 
 /* 0 is good nid,
-   1 not found
-   < 0 error
-   endh is set to next separator */
+ * 1 not found
+ * < 0 error
+ * endh is set to next separator
+ */
 static int class_parse_value(char *buf, int opc, void *value, char **endh,
 			     int quiet)
 {
@@ -210,7 +212,7 @@ static int class_attach(struct lustre_cfg *lcfg)
 		       name, typename, rc);
 		goto out;
 	}
-	LASSERTF(obd != NULL, "Cannot get obd device %s of type %s\n",
+	LASSERTF(obd, "Cannot get obd device %s of type %s\n",
 		 name, typename);
 	LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
 		 "obd %p obd_magic %08X != %08X\n",
@@ -230,7 +232,8 @@ static int class_attach(struct lustre_cfg *lcfg)
 	mutex_init(&obd->obd_dev_mutex);
 	spin_lock_init(&obd->obd_osfs_lock);
 	/* obd->obd_osfs_age must be set to a value in the distant
-	 * past to guarantee a fresh statfs is fetched on mount. */
+	 * past to guarantee a fresh statfs is fetched on mount.
+	 */
 	obd->obd_osfs_age = cfs_time_shift_64(-1000);
 
 	/* XXX belongs in setup not attach  */
@@ -272,9 +275,9 @@ static int class_attach(struct lustre_cfg *lcfg)
 	       obd->obd_minor, typename, atomic_read(&obd->obd_refcount));
 	return 0;
  out:
-	if (obd != NULL) {
+	if (obd)
 		class_release_dev(obd);
-	}
+
 	return rc;
 }
 
@@ -286,7 +289,7 @@ static int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
 	int err = 0;
 	struct obd_export *exp;
 
-	LASSERT(obd != NULL);
+	LASSERT(obd);
 	LASSERTF(obd == class_num2obd(obd->obd_minor),
 		 "obd %p != obd_devs[%d] %p\n",
 		 obd, obd->obd_minor, class_num2obd(obd->obd_minor));
@@ -315,7 +318,8 @@ static int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
 		return -EEXIST;
 	}
 	/* just leave this on forever.  I can't use obd_set_up here because
-	   other fns check that status, and we're not actually set up yet. */
+	 * other fns check that status, and we're not actually set up yet.
+	 */
 	obd->obd_starting = 1;
 	obd->obd_uuid_hash = NULL;
 	spin_unlock(&obd->obd_dev_lock);
@@ -503,7 +507,8 @@ void class_decref(struct obd_device *obd, const char *scope, const void *source)
 
 	if ((refs == 1) && obd->obd_stopping) {
 		/* All exports have been destroyed; there should
-		   be no more in-progress ops by this point.*/
+		 * be no more in-progress ops by this point.
+		 */
 
 		spin_lock(&obd->obd_self_export->exp_lock);
 		obd->obd_self_export->exp_flags |= exp_flags_from_obd(obd);
@@ -723,7 +728,8 @@ static int class_set_global(char *ptr, int val, struct lustre_cfg *lcfg)
 }
 
 /* We can't call ll_process_config or lquota_process_config directly because
- * it lives in a module that must be loaded after this one. */
+ * it lives in a module that must be loaded after this one.
+ */
 static int (*client_process_config)(struct lustre_cfg *lcfg);
 static int (*quota_process_config)(struct lustre_cfg *lcfg);
 
@@ -812,7 +818,8 @@ int class_process_config(struct lustre_cfg *lcfg)
 		       lustre_cfg_string(lcfg, 2),
 		       lustre_cfg_string(lcfg, 3));
 		/* set these mount options somewhere, so ll_fill_super
-		 * can find them. */
+		 * can find them.
+		 */
 		err = class_add_profile(LUSTRE_CFG_BUFLEN(lcfg, 1),
 					lustre_cfg_string(lcfg, 1),
 					LUSTRE_CFG_BUFLEN(lcfg, 2),
@@ -988,8 +995,9 @@ int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
 	fakefile.private_data = &fake_seqfile;
 	fake_seqfile.private = data;
 	/* e.g. tunefs.lustre --param mdt.group_upcall=foo /r/tmp/lustre-mdt
-	   or   lctl conf_param lustre-MDT0000.mdt.group_upcall=bar
-	   or   lctl conf_param lustre-OST0000.osc.max_dirty_mb=36 */
+	 * or   lctl conf_param lustre-MDT0000.mdt.group_upcall=bar
+	 * or   lctl conf_param lustre-OST0000.osc.max_dirty_mb=36
+	 */
 	for (i = 1; i < lcfg->lcfg_bufcount; i++) {
 		key = lustre_cfg_buf(lcfg, i);
 		/* Strip off prefix */
@@ -1008,7 +1016,7 @@ int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
 		/* Search proc entries */
 		while (lvars[j].name) {
 			var = &lvars[j];
-			if (class_match_param(key, (char *)var->name, NULL) == 0
+			if (!class_match_param(key, var->name, NULL)
 			    && keylen == strlen(var->name)) {
 				matched++;
 				rc = -EROFS;
@@ -1027,9 +1035,10 @@ int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
 		}
 		if (!matched) {
 			/* If the prefix doesn't match, return error so we
-			   can pass it down the stack */
+			 * can pass it down the stack
+			 */
 			if (strnchr(key, keylen, '.'))
-			    return -ENOSYS;
+				return -ENOSYS;
 			CERROR("%s: unknown param %s\n",
 			       (char *)lustre_cfg_string(lcfg, 0), key);
 			/* rc = -EINVAL;	continue parsing other params */
@@ -1116,7 +1125,8 @@ int class_config_llog_handler(const struct lu_env *env,
 			}
 		}
 		/* A config command without a start marker before it is
-		   illegal (post 146) */
+		 * illegal (post 146)
+		 */
 		if (!(clli->cfg_flags & CFG_F_COMPAT146) &&
 		    !(clli->cfg_flags & CFG_F_MARKER) &&
 		    (lcfg->lcfg_command != LCFG_MARKER)) {
@@ -1182,8 +1192,9 @@ int class_config_llog_handler(const struct lu_env *env,
 		}
 
 		/* we override the llog's uuid for clients, to insure they
-		are unique */
-		if (clli && clli->cfg_instance != NULL &&
+		 * are unique
+		 */
+		if (clli && clli->cfg_instance &&
 		    lcfg->lcfg_command == LCFG_ATTACH) {
 			lustre_cfg_bufs_set_string(&bufs, 2,
 						   clli->cfg_uuid.uuid);
@@ -1211,7 +1222,8 @@ int class_config_llog_handler(const struct lu_env *env,
 		lcfg_new->lcfg_flags = lcfg->lcfg_flags;
 
 		/* XXX Hack to try to remain binary compatible with
-		 * pre-newconfig logs */
+		 * pre-newconfig logs
+		 */
 		if (lcfg->lcfg_nal != 0 &&      /* pre-newconfig log? */
 		    (lcfg->lcfg_nid >> 32) == 0) {
 			__u32 addr = (__u32)(lcfg->lcfg_nid & 0xffffffff);
@@ -1270,7 +1282,7 @@ int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
 	if (cfg) {
 		cd.lpcd_first_idx = cfg->cfg_last_idx;
 		callback = cfg->cfg_callback;
-		LASSERT(callback != NULL);
+		LASSERT(callback);
 	} else {
 		callback = class_config_llog_handler;
 	}
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_mount.c b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
index b5aa816..d138e05 100644
--- a/drivers/staging/lustre/lustre/obdclass/obd_mount.c
+++ b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
@@ -283,9 +283,10 @@ int lustre_start_mgc(struct super_block *sb)
 		recov_bk = 0;
 
 		/* Try all connections, but only once (again).
-		   We don't want to block another target from starting
-		   (using its local copy of the log), but we do want to connect
-		   if at all possible. */
+		 * We don't want to block another target from starting
+		 * (using its local copy of the log), but we do want to connect
+		 * if at all possible.
+		 */
 		recov_bk++;
 		CDEBUG(D_MOUNT, "%s: Set MGC reconnect %d\n", mgcname,
 		       recov_bk);
@@ -375,7 +376,8 @@ int lustre_start_mgc(struct super_block *sb)
 		goto out_free;
 
 	/* Keep a refcount of servers/clients who started with "mount",
-	   so we know when we can get rid of the mgc. */
+	 * so we know when we can get rid of the mgc.
+	 */
 	atomic_set(&obd->u.cli.cl_mgc_refcount, 1);
 
 	/* We connect to the MGS at setup, and don't disconnect until cleanup */
@@ -403,7 +405,8 @@ int lustre_start_mgc(struct super_block *sb)
 
 out:
 	/* Keep the mgc info in the sb. Note that many lsi's can point
-	   to the same mgc.*/
+	 * to the same mgc.
+	 */
 	lsi->lsi_mgc = obd;
 out_free:
 	mutex_unlock(&mgc_start_lock);
@@ -432,7 +435,8 @@ static int lustre_stop_mgc(struct super_block *sb)
 	LASSERT(atomic_read(&obd->u.cli.cl_mgc_refcount) > 0);
 	if (!atomic_dec_and_test(&obd->u.cli.cl_mgc_refcount)) {
 		/* This is not fatal, every client that stops
-		   will call in here. */
+		 * will call in here.
+		 */
 		CDEBUG(D_MOUNT, "mgc still has %d references.\n",
 		       atomic_read(&obd->u.cli.cl_mgc_refcount));
 		rc = -EBUSY;
@@ -440,19 +444,20 @@ static int lustre_stop_mgc(struct super_block *sb)
 	}
 
 	/* The MGC has no recoverable data in any case.
-	 * force shutdown set in umount_begin */
+	 * force shutdown set in umount_begin
+	 */
 	obd->obd_no_recov = 1;
 
 	if (obd->u.cli.cl_mgc_mgsexp) {
 		/* An error is not fatal, if we are unable to send the
-		   disconnect mgs ping evictor cleans up the export */
+		 * disconnect mgs ping evictor cleans up the export
+		 */
 		rc = obd_disconnect(obd->u.cli.cl_mgc_mgsexp);
 		if (rc)
 			CDEBUG(D_MOUNT, "disconnect failed %d\n", rc);
 	}
 
-	/* Save the obdname for cleaning the nid uuids, which are
-	   obdname_XX */
+	/* Save the obdname for cleaning the nid uuids, which are obdname_XX */
 	len = strlen(obd->obd_name) + 6;
 	niduuid = kzalloc(len, GFP_NOFS);
 	if (niduuid) {
@@ -518,13 +523,12 @@ static int lustre_free_lsi(struct super_block *sb)
 {
 	struct lustre_sb_info *lsi = s2lsi(sb);
 
-	LASSERT(lsi != NULL);
 	CDEBUG(D_MOUNT, "Freeing lsi %p\n", lsi);
 
 	/* someone didn't call server_put_mount. */
 	LASSERT(atomic_read(&lsi->lsi_mounts) == 0);
 
-	if (lsi->lsi_lmd != NULL) {
+	if (lsi->lsi_lmd) {
 		kfree(lsi->lsi_lmd->lmd_dev);
 		kfree(lsi->lsi_lmd->lmd_profile);
 		kfree(lsi->lsi_lmd->lmd_mgssec);
@@ -538,7 +542,7 @@ static int lustre_free_lsi(struct super_block *sb)
 		kfree(lsi->lsi_lmd);
 	}
 
-	LASSERT(lsi->lsi_llsbi == NULL);
+	LASSERT(!lsi->lsi_llsbi);
 	kfree(lsi);
 	s2lsi_nocast(sb) = NULL;
 
@@ -546,13 +550,12 @@ static int lustre_free_lsi(struct super_block *sb)
 }
 
 /* The lsi has one reference for every server that is using the disk -
-   e.g. MDT, MGS, and potentially MGC */
+ * e.g. MDT, MGS, and potentially MGC
+ */
 static int lustre_put_lsi(struct super_block *sb)
 {
 	struct lustre_sb_info *lsi = s2lsi(sb);
 
-	LASSERT(lsi != NULL);
-
 	CDEBUG(D_MOUNT, "put %p %d\n", sb, atomic_read(&lsi->lsi_mounts));
 	if (atomic_dec_and_test(&lsi->lsi_mounts)) {
 		lustre_free_lsi(sb);
@@ -588,21 +591,22 @@ static int server_name2fsname(const char *svname, char *fsname,
 	if (dash == svname)
 		return -EINVAL;
 
-	if (fsname != NULL) {
+	if (fsname) {
 		strncpy(fsname, svname, dash - svname);
 		fsname[dash - svname] = '\0';
 	}
 
-	if (endptr != NULL)
+	if (endptr)
 		*endptr = dash;
 
 	return 0;
 }
 
 /* Get the index from the obd name.
-   rc = server type, or
-   rc < 0  on error
-   if endptr isn't NULL it is set to end of name */
+ *  rc = server type, or
+ * rc < 0  on error
+ * if endptr isn't NULL it is set to end of name
+ */
 static int server_name2index(const char *svname, __u32 *idx,
 			     const char **endptr)
 {
@@ -627,18 +631,18 @@ static int server_name2index(const char *svname, __u32 *idx,
 	dash += 3;
 
 	if (strncmp(dash, "all", 3) == 0) {
-		if (endptr != NULL)
+		if (endptr)
 			*endptr = dash + 3;
 		return rc | LDD_F_SV_ALL;
 	}
 
 	index = simple_strtoul(dash, (char **)endptr, 16);
-	if (idx != NULL)
+	if (idx)
 		*idx = index;
 
 	/* Account for -mdc after index that is possible when specifying mdt */
-	if (endptr != NULL && strncmp(LUSTRE_MDC_NAME, *endptr + 1,
-				      sizeof(LUSTRE_MDC_NAME)-1) == 0)
+	if (endptr && strncmp(LUSTRE_MDC_NAME, *endptr + 1,
+			      sizeof(LUSTRE_MDC_NAME) - 1) == 0)
 		*endptr += sizeof(LUSTRE_MDC_NAME);
 
 	return rc;
@@ -661,7 +665,8 @@ int lustre_common_put_super(struct super_block *sb)
 			return rc;
 		}
 		/* BUSY just means that there's some other obd that
-		   needs the mgc.  Let him clean it up. */
+		 * needs the mgc.  Let him clean it up.
+		 */
 		CDEBUG(D_MOUNT, "MGC still in use\n");
 	}
 	/* Drop a ref to the mounted disk */
@@ -731,8 +736,9 @@ static int lmd_make_exclusion(struct lustre_mount_data *lmd, const char *ptr)
 	int rc = 0, devmax;
 
 	/* The shortest an ost name can be is 8 chars: -OST0000.
-	   We don't actually know the fsname at this time, so in fact
-	   a user could specify any fsname. */
+	 * We don't actually know the fsname at this time, so in fact
+	 * a user could specify any fsname.
+	 */
 	devmax = strlen(ptr) / 8 + 1;
 
 	/* temp storage until we figure out how many we have */
@@ -756,7 +762,8 @@ static int lmd_make_exclusion(struct lustre_mount_data *lmd, const char *ptr)
 			       (uint)(s2-s1), s1, rc);
 		s1 = s2;
 		/* now we are pointing at ':' (next exclude)
-		   or ',' (end of excludes) */
+		 * or ',' (end of excludes)
+		 */
 		if (lmd->lmd_exclude_count >= devmax)
 			break;
 	}
@@ -788,7 +795,7 @@ static int lmd_parse_mgssec(struct lustre_mount_data *lmd, char *ptr)
 	lmd->lmd_mgssec = NULL;
 
 	tail = strchr(ptr, ',');
-	if (tail == NULL)
+	if (!tail)
 		length = strlen(ptr);
 	else
 		length = tail - ptr;
@@ -807,14 +814,14 @@ static int lmd_parse_string(char **handle, char *ptr)
 	char   *tail;
 	int     length;
 
-	if ((handle == NULL) || (ptr == NULL))
+	if (!handle || !ptr)
 		return -EINVAL;
 
 	kfree(*handle);
 	*handle = NULL;
 
 	tail = strchr(ptr, ',');
-	if (tail == NULL)
+	if (!tail)
 		length = strlen(ptr);
 	else
 		length = tail - ptr;
@@ -847,14 +854,14 @@ static int lmd_parse_mgs(struct lustre_mount_data *lmd, char **ptr)
 		return -EINVAL;
 	}
 
-	if (lmd->lmd_mgs != NULL)
+	if (lmd->lmd_mgs)
 		oldlen = strlen(lmd->lmd_mgs) + 1;
 
 	mgsnid = kzalloc(oldlen + length + 1, GFP_NOFS);
 	if (!mgsnid)
 		return -ENOMEM;
 
-	if (lmd->lmd_mgs != NULL) {
+	if (lmd->lmd_mgs) {
 		/* Multiple mgsnid= are taken to mean failover locations */
 		memcpy(mgsnid, lmd->lmd_mgs, oldlen);
 		mgsnid[oldlen - 1] = ':';
@@ -909,10 +916,12 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd)
 			s1++;
 
 		/* Client options are parsed in ll_options: eg. flock,
-		   user_xattr, acl */
+		 * user_xattr, acl
+		 */
 
 		/* Parse non-ldiskfs options here. Rather than modifying
-		   ldiskfs, we just zero these out here */
+		 * ldiskfs, we just zero these out here
+		 */
 		if (strncmp(s1, "abort_recov", 11) == 0) {
 			lmd->lmd_flags |= LMD_FLG_ABORT_RECOV;
 			clear++;
@@ -940,7 +949,8 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd)
 				   sizeof(PARAM_MGSNODE) - 1) == 0) {
 			s2 = s1 + sizeof(PARAM_MGSNODE) - 1;
 			/* Assume the next mount opt is the first
-			   invalid nid we get to. */
+			 * invalid nid we get to.
+			 */
 			rc = lmd_parse_mgs(lmd, &s2);
 			if (rc)
 				goto invalid;
@@ -981,7 +991,7 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd)
 			size_t length, params_length;
 			char *tail = strchr(s1 + 6, ',');
 
-			if (tail == NULL)
+			if (!tail)
 				length = strlen(s1);
 			else
 				length = tail - s1;
@@ -1000,18 +1010,20 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd)
 			clear++;
 		}
 		/* Linux 2.4 doesn't pass the device, so we stuck it at the
-		   end of the options. */
+		 * end of the options.
+		 */
 		else if (strncmp(s1, "device=", 7) == 0) {
 			devname = s1 + 7;
 			/* terminate options right before device.  device
-			   must be the last one. */
+			 * must be the last one.
+			 */
 			*s1 = '\0';
 			break;
 		}
 
 		/* Find next opt */
 		s2 = strchr(s1, ',');
-		if (s2 == NULL) {
+		if (!s2) {
 			if (clear)
 				*s1 = '\0';
 			break;
@@ -1113,9 +1125,9 @@ static int lustre_fill_super(struct super_block *sb, void *data, int silent)
 
 	if (lmd_is_client(lmd)) {
 		CDEBUG(D_MOUNT, "Mounting client %s\n", lmd->lmd_profile);
-		if (client_fill_super == NULL)
+		if (!client_fill_super)
 			request_module("lustre");
-		if (client_fill_super == NULL) {
+		if (!client_fill_super) {
 			LCONSOLE_ERROR_MSG(0x165, "Nothing registered for client mount! Is the 'lustre' module loaded?\n");
 			lustre_put_lsi(sb);
 			rc = -ENODEV;
@@ -1136,7 +1148,8 @@ static int lustre_fill_super(struct super_block *sb, void *data, int silent)
 	}
 
 	/* If error happens in fill_super() call, @lsi will be killed there.
-	 * This is why we do not put it here. */
+	 * This is why we do not put it here.
+	 */
 	goto out;
 out:
 	if (rc) {
@@ -1151,7 +1164,8 @@ out:
 }
 
 /* We can't call ll_fill_super by name because it lives in a module that
-   must be loaded after this one. */
+ * must be loaded after this one.
+ */
 void lustre_register_client_fill_super(int (*cfs)(struct super_block *sb,
 						  struct vfsmount *mnt))
 {
@@ -1166,7 +1180,7 @@ void lustre_register_kill_super_cb(void (*cfs)(struct super_block *sb))
 EXPORT_SYMBOL(lustre_register_kill_super_cb);
 
 /***************** FS registration ******************/
-struct dentry *lustre_mount(struct file_system_type *fs_type, int flags,
+static struct dentry *lustre_mount(struct file_system_type *fs_type, int flags,
 				const char *devname, void *data)
 {
 	struct lustre_mount_data2 lmd2 = {
diff --git a/drivers/staging/lustre/lustre/obdclass/obdo.c b/drivers/staging/lustre/lustre/obdclass/obdo.c
index 75e1dea..e6436cb 100644
--- a/drivers/staging/lustre/lustre/obdclass/obdo.c
+++ b/drivers/staging/lustre/lustre/obdclass/obdo.c
@@ -55,7 +55,8 @@ void obdo_set_parent_fid(struct obdo *dst, const struct lu_fid *parent)
 EXPORT_SYMBOL(obdo_set_parent_fid);
 
 /* WARNING: the file systems must take care not to tinker with
-   attributes they don't manage (such as blocks). */
+ * attributes they don't manage (such as blocks).
+ */
 void obdo_from_inode(struct obdo *dst, struct inode *src, u32 valid)
 {
 	u32 newvalid = 0;
@@ -122,7 +123,8 @@ void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj)
 		ostid_set_seq_mdt0(&ioobj->ioo_oid);
 
 	/* Since 2.4 this does not contain o_mode in the low 16 bits.
-	 * Instead, it holds (bd_md_max_brw - 1) for multi-bulk BRW RPCs */
+	 * Instead, it holds (bd_md_max_brw - 1) for multi-bulk BRW RPCs
+	 */
 	ioobj->ioo_max_brw = 0;
 }
 EXPORT_SYMBOL(obdo_to_ioobj);
diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c
index 4ca82af..3be28c5 100644
--- a/drivers/staging/lustre/lustre/obdecho/echo_client.c
+++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c
@@ -146,7 +146,7 @@ static inline struct echo_thread_info *echo_env_info(const struct lu_env *env)
 	struct echo_thread_info *info;
 
 	info = lu_context_key_get(&env->le_ctx, &echo_thread_key);
-	LASSERT(info != NULL);
+	LASSERT(info);
 	return info;
 }
 
@@ -267,7 +267,7 @@ static void echo_page_completion(const struct lu_env *env,
 				 const struct cl_page_slice *slice,
 				 int ioret)
 {
-	LASSERT(slice->cpl_page->cp_sync_io != NULL);
+	LASSERT(slice->cpl_page->cp_sync_io);
 }
 
 static void echo_page_fini(const struct lu_env *env,
@@ -393,13 +393,13 @@ static int echo_lock_init(const struct lu_env *env,
 	struct echo_lock *el;
 
 	el = kmem_cache_alloc(echo_lock_kmem, GFP_NOFS | __GFP_ZERO);
-	if (el != NULL) {
+	if (el) {
 		cl_lock_slice_add(lock, &el->el_cl, obj, &echo_lock_ops);
 		el->el_object = cl2echo_obj(obj);
 		INIT_LIST_HEAD(&el->el_chain);
 		atomic_set(&el->el_refcount, 0);
 	}
-	return el == NULL ? -ENOMEM : 0;
+	return !el ? -ENOMEM : 0;
 }
 
 static int echo_conf_set(const struct lu_env *env, struct cl_object *obj,
@@ -439,7 +439,7 @@ static int echo_object_init(const struct lu_env *env, struct lu_object *obj,
 		under = ed->ed_next;
 		below = under->ld_ops->ldo_object_alloc(env, obj->lo_header,
 							under);
-		if (below == NULL)
+		if (!below)
 			return -ENOMEM;
 		lu_object_add(obj, below);
 	}
@@ -470,12 +470,12 @@ static int echo_alloc_memmd(struct echo_device *ed,
 	int lsm_size;
 
 	/* If export is lov/osc then use their obd method */
-	if (ed->ed_next != NULL)
+	if (ed->ed_next)
 		return obd_alloc_memmd(ed->ed_ec->ec_exp, lsmp);
 	/* OFD has no unpackmd method, do everything here */
 	lsm_size = lov_stripe_md_size(1);
 
-	LASSERT(*lsmp == NULL);
+	LASSERT(!*lsmp);
 	*lsmp = kzalloc(lsm_size, GFP_NOFS);
 	if (!*lsmp)
 		return -ENOMEM;
@@ -498,12 +498,11 @@ static int echo_free_memmd(struct echo_device *ed, struct lov_stripe_md **lsmp)
 	int lsm_size;
 
 	/* If export is lov/osc then use their obd method */
-	if (ed->ed_next != NULL)
+	if (ed->ed_next)
 		return obd_free_memmd(ed->ed_ec->ec_exp, lsmp);
 	/* OFD has no unpackmd method, do everything here */
 	lsm_size = lov_stripe_md_size(1);
 
-	LASSERT(*lsmp != NULL);
 	kfree((*lsmp)->lsm_oinfo[0]);
 	kfree(*lsmp);
 	*lsmp = NULL;
@@ -562,9 +561,9 @@ static struct lu_object *echo_object_alloc(const struct lu_env *env,
 	struct lu_object *obj = NULL;
 
 	/* we're the top dev. */
-	LASSERT(hdr == NULL);
+	LASSERT(!hdr);
 	eco = kmem_cache_alloc(echo_object_kmem, GFP_NOFS | __GFP_ZERO);
-	if (eco != NULL) {
+	if (eco) {
 		struct cl_object_header *hdr = &eco->eo_hdr;
 
 		obj = &echo_obj2cl(eco)->co_lu;
@@ -627,7 +626,7 @@ static void *echo_thread_key_init(const struct lu_context *ctx,
 	struct echo_thread_info *info;
 
 	info = kmem_cache_alloc(echo_thread_kmem, GFP_NOFS | __GFP_ZERO);
-	if (info == NULL)
+	if (!info)
 		info = ERR_PTR(-ENOMEM);
 	return info;
 }
@@ -658,7 +657,7 @@ static void *echo_session_key_init(const struct lu_context *ctx,
 	struct echo_session_info *session;
 
 	session = kmem_cache_alloc(echo_session_kmem, GFP_NOFS | __GFP_ZERO);
-	if (session == NULL)
+	if (!session)
 		session = ERR_PTR(-ENOMEM);
 	return session;
 }
@@ -715,11 +714,11 @@ static struct lu_device *echo_device_alloc(const struct lu_env *env,
 
 	cleanup = 2;
 	obd = class_name2obd(lustre_cfg_string(cfg, 0));
-	LASSERT(obd != NULL);
-	LASSERT(env != NULL);
+	LASSERT(obd);
+	LASSERT(env);
 
 	tgt = class_name2obd(lustre_cfg_string(cfg, 1));
-	if (tgt == NULL) {
+	if (!tgt) {
 		CERROR("Can not find tgt device %s\n",
 			lustre_cfg_string(cfg, 1));
 		rc = -ENODEV;
@@ -747,14 +746,14 @@ static struct lu_device *echo_device_alloc(const struct lu_env *env,
 	cleanup = 4;
 
 	/* if echo client is to be stacked upon ost device, the next is
-	 * NULL since ost is not a clio device so far */
-	if (next != NULL && !lu_device_is_cl(next))
+	 * NULL since ost is not a clio device so far
+	 */
+	if (next && !lu_device_is_cl(next))
 		next = NULL;
 
 	tgt_type_name = tgt->obd_type->typ_name;
-	if (next != NULL) {
-		LASSERT(next != NULL);
-		if (next->ld_site != NULL) {
+	if (next) {
+		if (next->ld_site) {
 			rc = -EBUSY;
 			goto out;
 		}
@@ -967,7 +966,8 @@ static struct echo_object *cl_echo_object_find(struct echo_device *d,
 	}
 
 	/* In the function below, .hs_keycmp resolves to
-	 * lu_obj_hop_keycmp() */
+	 * lu_obj_hop_keycmp()
+	 */
 	/* coverity[overrun-buffer-val] */
 	obj = cl_object_find(env, echo_dev2cl(d), fid, &conf->eoc_cl);
 	if (IS_ERR(obj)) {
@@ -1063,7 +1063,6 @@ static int cl_echo_cancel0(struct lu_env *env, struct echo_device *ed,
 	struct list_head	     *el;
 	int found = 0, still_used = 0;
 
-	LASSERT(ec != NULL);
 	spin_lock(&ec->ec_lock);
 	list_for_each(el, &ec->ec_locks) {
 		ecl = list_entry(el, struct echo_lock, el_chain);
@@ -1121,7 +1120,7 @@ static int cl_echo_object_brw(struct echo_object *eco, int rw, u64 offset,
 	int i;
 
 	LASSERT((offset & ~CFS_PAGE_MASK) == 0);
-	LASSERT(ed->ed_next != NULL);
+	LASSERT(ed->ed_next);
 	env = cl_env_get(&refcheck);
 	if (IS_ERR(env))
 		return PTR_ERR(env);
@@ -1167,7 +1166,8 @@ static int cl_echo_object_brw(struct echo_object *eco, int rw, u64 offset,
 		cl_page_list_add(&queue->c2_qin, clp);
 
 		/* drop the reference count for cl_page_find, so that the page
-		 * will be freed in cl_2queue_fini. */
+		 * will be freed in cl_2queue_fini.
+		 */
 		cl_page_put(env, clp);
 		cl_page_clip(env, clp, 0, page_size);
 
@@ -1393,11 +1393,11 @@ static int echo_client_kbrw(struct echo_device *ed, int rw, struct obdo *oa,
 		brw_flags = OBD_BRW_ASYNC;
 
 	pga = kcalloc(npages, sizeof(*pga), GFP_NOFS);
-	if (pga == NULL)
+	if (!pga)
 		return -ENOMEM;
 
 	pages = kcalloc(npages, sizeof(*pages), GFP_NOFS);
-	if (pages == NULL) {
+	if (!pages) {
 		kfree(pga);
 		return -ENOMEM;
 	}
@@ -1406,11 +1406,11 @@ static int echo_client_kbrw(struct echo_device *ed, int rw, struct obdo *oa,
 	     i < npages;
 	     i++, pgp++, off += PAGE_CACHE_SIZE) {
 
-		LASSERT(pgp->pg == NULL);      /* for cleanup */
+		LASSERT(!pgp->pg);      /* for cleanup */
 
 		rc = -ENOMEM;
 		pgp->pg = alloc_page(gfp_mask);
-		if (pgp->pg == NULL)
+		if (!pgp->pg)
 			goto out;
 
 		pages[i] = pgp->pg;
@@ -1425,7 +1425,7 @@ static int echo_client_kbrw(struct echo_device *ed, int rw, struct obdo *oa,
 	}
 
 	/* brw mode can only be used at client */
-	LASSERT(ed->ed_next != NULL);
+	LASSERT(ed->ed_next);
 	rc = cl_echo_object_brw(eco, rw, offset, pages, npages, async);
 
  out:
@@ -1433,7 +1433,7 @@ static int echo_client_kbrw(struct echo_device *ed, int rw, struct obdo *oa,
 		verify = 0;
 
 	for (i = 0, pgp = pga; i < npages; i++, pgp++) {
-		if (pgp->pg == NULL)
+		if (!pgp->pg)
 			continue;
 
 		if (verify) {
@@ -1475,7 +1475,7 @@ static int echo_client_prep_commit(const struct lu_env *env,
 	lnb = kcalloc(npages, sizeof(struct niobuf_local), GFP_NOFS);
 	rnb = kcalloc(npages, sizeof(struct niobuf_remote), GFP_NOFS);
 
-	if (lnb == NULL || rnb == NULL) {
+	if (!lnb || !rnb) {
 		ret = -ENOMEM;
 		goto out;
 	}
@@ -1513,7 +1513,7 @@ static int echo_client_prep_commit(const struct lu_env *env,
 			struct page *page = lnb[i].page;
 
 			/* read past eof? */
-			if (page == NULL && lnb[i].rc == 0)
+			if (!page  && lnb[i].rc == 0)
 				continue;
 
 			if (async)
@@ -1582,7 +1582,7 @@ static int echo_client_brw_ioctl(const struct lu_env *env, int rw,
 	if (test_mode == 1)
 		async = 0;
 
-	if (ed->ed_next == NULL && test_mode != 3) {
+	if (!ed->ed_next && test_mode != 3) {
 		test_mode = 3;
 		data->ioc_plen1 = data->ioc_count;
 	}
@@ -1834,7 +1834,7 @@ static int echo_client_disconnect(struct obd_export *exp)
 {
 	int		     rc;
 
-	if (exp == NULL) {
+	if (!exp) {
 		rc = -EINVAL;
 		goto out;
 	}
diff --git a/drivers/staging/lustre/lustre/obdecho/echo_internal.h b/drivers/staging/lustre/lustre/obdecho/echo_internal.h
index 69063fa..f5034a2 100644
--- a/drivers/staging/lustre/lustre/obdecho/echo_internal.h
+++ b/drivers/staging/lustre/lustre/obdecho/echo_internal.h
@@ -13,11 +13,6 @@
  * General Public License version 2 for more details (a copy is included
  * in the LICENSE file that accompanied this code).
  *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
  * GPL HEADER END
  */
 /*
diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c
index b69ec0f..b5df5e6 100644
--- a/drivers/staging/lustre/lustre/osc/lproc_osc.c
+++ b/drivers/staging/lustre/lustre/osc/lproc_osc.c
@@ -381,7 +381,7 @@ static int osc_checksum_type_seq_show(struct seq_file *m, void *v)
 
 	DECLARE_CKSUM_NAME;
 
-	if (obd == NULL)
+	if (!obd)
 		return 0;
 
 	for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
@@ -406,7 +406,7 @@ static ssize_t osc_checksum_type_seq_write(struct file *file,
 	DECLARE_CKSUM_NAME;
 	char kernbuf[10];
 
-	if (obd == NULL)
+	if (!obd)
 		return 0;
 
 	if (count > sizeof(kernbuf) - 1)
@@ -422,8 +422,8 @@ static ssize_t osc_checksum_type_seq_write(struct file *file,
 		if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
 			continue;
 		if (!strcmp(kernbuf, cksum_name[i])) {
-		       obd->u.cli.cl_cksum_type = 1 << i;
-		       return count;
+			obd->u.cli.cl_cksum_type = 1 << i;
+			return count;
 		}
 	}
 	return -EINVAL;
diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c
index 6b5f8d0..c6623c1 100644
--- a/drivers/staging/lustre/lustre/osc/osc_cache.c
+++ b/drivers/staging/lustre/lustre/osc/osc_cache.c
@@ -140,7 +140,7 @@ static const char *oes_strings[] = {
 
 static inline struct osc_extent *rb_extent(struct rb_node *n)
 {
-	if (n == NULL)
+	if (!n)
 		return NULL;
 
 	return container_of(n, struct osc_extent, oe_node);
@@ -148,7 +148,7 @@ static inline struct osc_extent *rb_extent(struct rb_node *n)
 
 static inline struct osc_extent *next_extent(struct osc_extent *ext)
 {
-	if (ext == NULL)
+	if (!ext)
 		return NULL;
 
 	LASSERT(ext->oe_intree);
@@ -157,7 +157,7 @@ static inline struct osc_extent *next_extent(struct osc_extent *ext)
 
 static inline struct osc_extent *prev_extent(struct osc_extent *ext)
 {
-	if (ext == NULL)
+	if (!ext)
 		return NULL;
 
 	LASSERT(ext->oe_intree);
@@ -240,7 +240,7 @@ static int osc_extent_sanity_check0(struct osc_extent *ext,
 		goto out;
 	}
 
-	if (ext->oe_osclock == NULL && ext->oe_grants > 0) {
+	if (!ext->oe_osclock && ext->oe_grants > 0) {
 		rc = 90;
 		goto out;
 	}
@@ -262,7 +262,8 @@ static int osc_extent_sanity_check0(struct osc_extent *ext,
 	}
 
 	/* Do not verify page list if extent is in RPC. This is because an
-	 * in-RPC extent is supposed to be exclusively accessible w/o lock. */
+	 * in-RPC extent is supposed to be exclusively accessible w/o lock.
+	 */
 	if (ext->oe_state > OES_CACHE) {
 		rc = 0;
 		goto out;
@@ -319,7 +320,7 @@ static int osc_extent_is_overlapped(struct osc_object *obj,
 	if (!extent_debug)
 		return 0;
 
-	for (tmp = first_extent(obj); tmp != NULL; tmp = next_extent(tmp)) {
+	for (tmp = first_extent(obj); tmp; tmp = next_extent(tmp)) {
 		if (tmp == ext)
 			continue;
 		if (tmp->oe_end >= ext->oe_start &&
@@ -347,7 +348,7 @@ static struct osc_extent *osc_extent_alloc(struct osc_object *obj)
 	struct osc_extent *ext;
 
 	ext = kmem_cache_alloc(osc_extent_kmem, GFP_NOFS | __GFP_ZERO);
-	if (ext == NULL)
+	if (!ext)
 		return NULL;
 
 	RB_CLEAR_NODE(&ext->oe_node);
@@ -415,7 +416,7 @@ static struct osc_extent *osc_extent_search(struct osc_object *obj,
 	struct osc_extent *tmp, *p = NULL;
 
 	LASSERT(osc_object_is_locked(obj));
-	while (n != NULL) {
+	while (n) {
 		tmp = rb_extent(n);
 		if (index < tmp->oe_start) {
 			n = n->rb_left;
@@ -439,7 +440,7 @@ static struct osc_extent *osc_extent_lookup(struct osc_object *obj,
 	struct osc_extent *ext;
 
 	ext = osc_extent_search(obj, index);
-	if (ext != NULL && ext->oe_start <= index && index <= ext->oe_end)
+	if (ext && ext->oe_start <= index && index <= ext->oe_end)
 		return osc_extent_get(ext);
 	return NULL;
 }
@@ -454,7 +455,7 @@ static void osc_extent_insert(struct osc_object *obj, struct osc_extent *ext)
 	LASSERT(ext->oe_intree == 0);
 	LASSERT(ext->oe_obj == obj);
 	LASSERT(osc_object_is_locked(obj));
-	while (*n != NULL) {
+	while (*n) {
 		tmp = rb_extent(*n);
 		parent = *n;
 
@@ -533,7 +534,7 @@ static int osc_extent_merge(const struct lu_env *env, struct osc_extent *cur,
 
 	LASSERT(cur->oe_state == OES_CACHE);
 	LASSERT(osc_object_is_locked(obj));
-	if (victim == NULL)
+	if (!victim)
 		return -EINVAL;
 
 	if (victim->oe_state != OES_CACHE || victim->oe_fsync_wait)
@@ -587,7 +588,8 @@ void osc_extent_release(const struct lu_env *env, struct osc_extent *ext)
 		if (ext->oe_trunc_pending) {
 			/* a truncate process is waiting for this extent.
 			 * This may happen due to a race, check
-			 * osc_cache_truncate_start(). */
+			 * osc_cache_truncate_start().
+			 */
 			osc_extent_state_set(ext, OES_TRUNC);
 			ext->oe_trunc_pending = 0;
 		} else {
@@ -639,11 +641,10 @@ static struct osc_extent *osc_extent_find(const struct lu_env *env,
 	int rc;
 
 	cur = osc_extent_alloc(obj);
-	if (cur == NULL)
+	if (!cur)
 		return ERR_PTR(-ENOMEM);
 
 	lock = cl_lock_at_pgoff(env, osc2cl(obj), index, NULL, 1, 0);
-	LASSERT(lock != NULL);
 	LASSERT(lock->cll_descr.cld_mode >= CLM_WRITE);
 
 	LASSERT(cli->cl_chunkbits >= PAGE_CACHE_SHIFT);
@@ -678,9 +679,9 @@ static struct osc_extent *osc_extent_find(const struct lu_env *env,
 restart:
 	osc_object_lock(obj);
 	ext = osc_extent_search(obj, cur->oe_start);
-	if (ext == NULL)
+	if (!ext)
 		ext = first_extent(obj);
-	while (ext != NULL) {
+	while (ext) {
 		loff_t ext_chk_start = ext->oe_start >> ppc_bits;
 		loff_t ext_chk_end = ext->oe_end >> ppc_bits;
 
@@ -705,18 +706,21 @@ restart:
 
 		/* ok, from now on, ext and cur have these attrs:
 		 * 1. covered by the same lock
-		 * 2. contiguous at chunk level or overlapping. */
+		 * 2. contiguous at chunk level or overlapping.
+		 */
 
 		if (overlapped(ext, cur)) {
 			/* cur is the minimum unit, so overlapping means
-			 * full contain. */
+			 * full contain.
+			 */
 			EASSERTF((ext->oe_start <= cur->oe_start &&
 				  ext->oe_end >= cur->oe_end),
 				 ext, EXTSTR, EXTPARA(cur));
 
 			if (ext->oe_state > OES_CACHE || ext->oe_fsync_wait) {
 				/* for simplicity, we wait for this extent to
-				 * finish before going forward. */
+				 * finish before going forward.
+				 */
 				conflict = osc_extent_get(ext);
 				break;
 			}
@@ -729,17 +733,20 @@ restart:
 		if (ext->oe_state != OES_CACHE || ext->oe_fsync_wait) {
 			/* we can't do anything for a non OES_CACHE extent, or
 			 * if there is someone waiting for this extent to be
-			 * flushed, try next one. */
+			 * flushed, try next one.
+			 */
 			ext = next_extent(ext);
 			continue;
 		}
 
 		/* check if they belong to the same rpc slot before trying to
 		 * merge. the extents are not overlapped and contiguous at
-		 * chunk level to get here. */
+		 * chunk level to get here.
+		 */
 		if (ext->oe_max_end != max_end) {
 			/* if they don't belong to the same RPC slot or
-			 * max_pages_per_rpc has ever changed, do not merge. */
+			 * max_pages_per_rpc has ever changed, do not merge.
+			 */
 			ext = next_extent(ext);
 			continue;
 		}
@@ -748,7 +755,8 @@ restart:
 		 * level so that we know the whole extent is covered by grant
 		 * (the pages in the extent are NOT required to be contiguous).
 		 * Otherwise, it will be too much difficult to know which
-		 * chunks have grants allocated. */
+		 * chunks have grants allocated.
+		 */
 
 		/* try to do front merge - extend ext's start */
 		if (chunk + 1 == ext_chk_start) {
@@ -768,28 +776,29 @@ restart:
 			*grants -= chunksize;
 
 			/* try to merge with the next one because we just fill
-			 * in a gap */
+			 * in a gap
+			 */
 			if (osc_extent_merge(env, ext, next_extent(ext)) == 0)
 				/* we can save extent tax from next extent */
 				*grants += cli->cl_extent_tax;
 
 			found = osc_extent_hold(ext);
 		}
-		if (found != NULL)
+		if (found)
 			break;
 
 		ext = next_extent(ext);
 	}
 
 	osc_extent_tree_dump(D_CACHE, obj);
-	if (found != NULL) {
-		LASSERT(conflict == NULL);
+	if (found) {
+		LASSERT(!conflict);
 		if (!IS_ERR(found)) {
 			LASSERT(found->oe_osclock == cur->oe_osclock);
 			OSC_EXTENT_DUMP(D_CACHE, found,
 					"found caching ext for %lu.\n", index);
 		}
-	} else if (conflict == NULL) {
+	} else if (!conflict) {
 		/* create a new extent */
 		EASSERT(osc_extent_is_overlapped(obj, cur) == 0, cur);
 		cur->oe_grants = chunksize + cli->cl_extent_tax;
@@ -804,11 +813,12 @@ restart:
 	}
 	osc_object_unlock(obj);
 
-	if (conflict != NULL) {
-		LASSERT(found == NULL);
+	if (conflict) {
+		LASSERT(!found);
 
 		/* waiting for IO to finish. Please notice that it's impossible
-		 * to be an OES_TRUNC extent. */
+		 * to be an OES_TRUNC extent.
+		 */
 		rc = osc_extent_wait(env, conflict, OES_INV);
 		osc_extent_put(env, conflict);
 		conflict = NULL;
@@ -865,7 +875,8 @@ int osc_extent_finish(const struct lu_env *env, struct osc_extent *ext,
 		   last_count != PAGE_CACHE_SIZE) {
 		/* For short writes we shouldn't count parts of pages that
 		 * span a whole chunk on the OST side, or our accounting goes
-		 * wrong.  Should match the code in filter_grant_check. */
+		 * wrong.  Should match the code in filter_grant_check.
+		 */
 		int offset = oap->oap_page_off & ~CFS_PAGE_MASK;
 		int count = oap->oap_count + (offset & (blocksize - 1));
 		int end = (offset + oap->oap_count) & (blocksize - 1);
@@ -909,7 +920,8 @@ static int osc_extent_wait(const struct lu_env *env, struct osc_extent *ext,
 	osc_object_lock(obj);
 	LASSERT(sanity_check_nolock(ext) == 0);
 	/* `Kick' this extent only if the caller is waiting for it to be
-	 * written out. */
+	 * written out.
+	 */
 	if (state == OES_INV && !ext->oe_urgent && !ext->oe_hp &&
 	    !ext->oe_trunc_pending) {
 		if (ext->oe_state == OES_ACTIVE) {
@@ -967,7 +979,8 @@ static int osc_extent_truncate(struct osc_extent *ext, pgoff_t trunc_index,
 
 	/* Request new lu_env.
 	 * We can't use that env from osc_cache_truncate_start() because
-	 * it's from lov_io_sub and not fully initialized. */
+	 * it's from lov_io_sub and not fully initialized.
+	 */
 	env = cl_env_nested_get(&nest);
 	io  = &osc_env_info(env)->oti_io;
 	io->ci_obj = cl_object_top(osc2cl(obj));
@@ -984,7 +997,8 @@ static int osc_extent_truncate(struct osc_extent *ext, pgoff_t trunc_index,
 		LASSERT(list_empty(&oap->oap_rpc_item));
 
 		/* only discard the pages with their index greater than
-		 * trunc_index, and ... */
+		 * trunc_index, and ...
+		 */
 		if (sub->cp_index < trunc_index ||
 		    (sub->cp_index == trunc_index && partial)) {
 			/* accounting how many pages remaining in the chunk
@@ -1028,11 +1042,13 @@ static int osc_extent_truncate(struct osc_extent *ext, pgoff_t trunc_index,
 		pgoff_t last_index;
 
 		/* if there is no pages in this chunk, we can also free grants
-		 * for the last chunk */
+		 * for the last chunk
+		 */
 		if (pages_in_chunk == 0) {
 			/* if this is the 1st chunk and no pages in this chunk,
 			 * ext->oe_nr_pages must be zero, so we should be in
-			 * the other if-clause. */
+			 * the other if-clause.
+			 */
 			LASSERT(trunc_chunk > 0);
 			--trunc_chunk;
 			++chunks;
@@ -1074,13 +1090,13 @@ static int osc_extent_make_ready(const struct lu_env *env,
 	LASSERT(sanity_check(ext) == 0);
 	/* in locking state, any process should not touch this extent. */
 	EASSERT(ext->oe_state == OES_LOCKING, ext);
-	EASSERT(ext->oe_owner != NULL, ext);
+	EASSERT(ext->oe_owner, ext);
 
 	OSC_EXTENT_DUMP(D_CACHE, ext, "make ready\n");
 
 	list_for_each_entry(oap, &ext->oe_pages, oap_pending_item) {
 		++page_count;
-		if (last == NULL || last->oap_obj_off < oap->oap_obj_off)
+		if (!last || last->oap_obj_off < oap->oap_obj_off)
 			last = oap;
 
 		/* checking ASYNC_READY is race safe */
@@ -1103,9 +1119,10 @@ static int osc_extent_make_ready(const struct lu_env *env,
 	}
 
 	LASSERT(page_count == ext->oe_nr_pages);
-	LASSERT(last != NULL);
+	LASSERT(last);
 	/* the last page is the only one we need to refresh its count by
-	 * the size of file. */
+	 * the size of file.
+	 */
 	if (!(last->oap_async_flags & ASYNC_COUNT_STABLE)) {
 		last->oap_count = osc_refresh_count(env, last, OBD_BRW_WRITE);
 		LASSERT(last->oap_count > 0);
@@ -1114,7 +1131,8 @@ static int osc_extent_make_ready(const struct lu_env *env,
 	}
 
 	/* for the rest of pages, we don't need to call osf_refresh_count()
-	 * because it's known they are not the last page */
+	 * because it's known they are not the last page
+	 */
 	list_for_each_entry(oap, &ext->oe_pages, oap_pending_item) {
 		if (!(oap->oap_async_flags & ASYNC_COUNT_STABLE)) {
 			oap->oap_count = PAGE_CACHE_SIZE - oap->oap_page_off;
@@ -1167,9 +1185,10 @@ static int osc_extent_expand(struct osc_extent *ext, pgoff_t index, int *grants)
 	end_index = min(ext->oe_max_end, ((chunk + 1) << ppc_bits) - 1);
 
 	next = next_extent(ext);
-	if (next != NULL && next->oe_start <= end_index) {
+	if (next && next->oe_start <= end_index) {
 		/* complex mode - overlapped with the next extent,
-		 * this case will be handled by osc_extent_find() */
+		 * this case will be handled by osc_extent_find()
+		 */
 		rc = -EAGAIN;
 		goto out;
 	}
@@ -1197,7 +1216,7 @@ static void osc_extent_tree_dump0(int level, struct osc_object *obj,
 
 	/* osc_object_lock(obj); */
 	cnt = 1;
-	for (ext = first_extent(obj); ext != NULL; ext = next_extent(ext))
+	for (ext = first_extent(obj); ext; ext = next_extent(ext))
 		OSC_EXTENT_DUMP(level, ext, "in tree %d.\n", cnt++);
 
 	cnt = 1;
@@ -1262,7 +1281,6 @@ static int osc_refresh_count(const struct lu_env *env,
 
 	/* readpage queues with _COUNT_STABLE, shouldn't get here. */
 	LASSERT(!(cmd & OBD_BRW_READ));
-	LASSERT(opg != NULL);
 	obj = opg->ops_cl.cpl_obj;
 
 	cl_object_attr_lock(obj);
@@ -1299,16 +1317,16 @@ static int osc_completion(const struct lu_env *env, struct osc_async_page *oap,
 	 * page->cp_req can be NULL if io submission failed before
 	 * cl_req was allocated.
 	 */
-	if (page->cp_req != NULL)
+	if (page->cp_req)
 		cl_req_page_done(env, page);
-	LASSERT(page->cp_req == NULL);
+	LASSERT(!page->cp_req);
 
 	crt = cmd == OBD_BRW_READ ? CRT_READ : CRT_WRITE;
 	/* Clear opg->ops_transfer_pinned before VM lock is released. */
 	opg->ops_transfer_pinned = 0;
 
 	spin_lock(&obj->oo_seatbelt);
-	LASSERT(opg->ops_submitter != NULL);
+	LASSERT(opg->ops_submitter);
 	LASSERT(!list_empty(&opg->ops_inflight));
 	list_del_init(&opg->ops_inflight);
 	opg->ops_submitter = NULL;
@@ -1367,7 +1385,8 @@ static void osc_consume_write_grant(struct client_obd *cli,
 }
 
 /* the companion to osc_consume_write_grant, called when a brw has completed.
- * must be called with the loi lock held. */
+ * must be called with the loi lock held.
+ */
 static void osc_release_write_grant(struct client_obd *cli,
 				    struct brw_page *pga)
 {
@@ -1410,7 +1429,8 @@ static void __osc_unreserve_grant(struct client_obd *cli,
 	/* it's quite normal for us to get more grant than reserved.
 	 * Thinking about a case that two extents merged by adding a new
 	 * chunk, we can save one extent tax. If extent tax is greater than
-	 * one chunk, we can save more grant by adding a new chunk */
+	 * one chunk, we can save more grant by adding a new chunk
+	 */
 	cli->cl_reserved_grant -= reserved;
 	if (unused > reserved) {
 		cli->cl_avail_grant += reserved;
@@ -1454,7 +1474,8 @@ static void osc_free_grant(struct client_obd *cli, unsigned int nr_pages,
 	cli->cl_lost_grant += lost_grant;
 	if (cli->cl_avail_grant < grant && cli->cl_lost_grant >= grant) {
 		/* borrow some grant from truncate to avoid the case that
-		 * truncate uses up all avail grant */
+		 * truncate uses up all avail grant
+		 */
 		cli->cl_lost_grant -= grant;
 		cli->cl_avail_grant += grant;
 	}
@@ -1539,7 +1560,8 @@ static int osc_enter_cache(const struct lu_env *env, struct client_obd *cli,
 	client_obd_list_lock(&cli->cl_loi_list_lock);
 
 	/* force the caller to try sync io.  this can jump the list
-	 * of queued writes and create a discontiguous rpc stream */
+	 * of queued writes and create a discontiguous rpc stream
+	 */
 	if (OBD_FAIL_CHECK(OBD_FAIL_OSC_NO_GRANT) ||
 	    cli->cl_dirty_max < PAGE_CACHE_SIZE     ||
 	    cli->cl_ar.ar_force_sync || loi->loi_ar.ar_force_sync) {
@@ -1558,7 +1580,8 @@ static int osc_enter_cache(const struct lu_env *env, struct client_obd *cli,
 	 * Adding a cache waiter will trigger urgent write-out no matter what
 	 * RPC size will be.
 	 * The exiting condition is no avail grants and no dirty pages caching,
-	 * that really means there is no space on the OST. */
+	 * that really means there is no space on the OST.
+	 */
 	init_waitqueue_head(&ocw.ocw_waitq);
 	ocw.ocw_oap   = oap;
 	ocw.ocw_grant = bytes;
@@ -1640,7 +1663,8 @@ static int osc_max_rpc_in_flight(struct client_obd *cli, struct osc_object *osc)
 
 /* This maintains the lists of pending pages to read/write for a given object
  * (lop).  This is used by osc_check_rpcs->osc_next_obj() and osc_list_maint()
- * to quickly find objects that are ready to send an RPC. */
+ * to quickly find objects that are ready to send an RPC.
+ */
 static int osc_makes_rpc(struct client_obd *cli, struct osc_object *osc,
 			 int cmd)
 {
@@ -1649,8 +1673,9 @@ static int osc_makes_rpc(struct client_obd *cli, struct osc_object *osc,
 	/* if we have an invalid import we want to drain the queued pages
 	 * by forcing them through rpcs that immediately fail and complete
 	 * the pages.  recovery relies on this to empty the queued pages
-	 * before canceling the locks and evicting down the llite pages */
-	if ((cli->cl_import == NULL || cli->cl_import->imp_invalid))
+	 * before canceling the locks and evicting down the llite pages
+	 */
+	if (!cli->cl_import || cli->cl_import->imp_invalid)
 		invalid_import = 1;
 
 	if (cmd & OBD_BRW_WRITE) {
@@ -1670,7 +1695,8 @@ static int osc_makes_rpc(struct client_obd *cli, struct osc_object *osc,
 		}
 		/* trigger a write rpc stream as long as there are dirtiers
 		 * waiting for space.  as they're waiting, they're not going to
-		 * create more pages to coalesce with what's waiting.. */
+		 * create more pages to coalesce with what's waiting..
+		 */
 		if (!list_empty(&cli->cl_cache_waiters)) {
 			CDEBUG(D_CACHE, "cache waiters forcing RPC\n");
 			return 1;
@@ -1723,7 +1749,8 @@ static void on_list(struct list_head *item, struct list_head *list, int should_b
 }
 
 /* maintain the osc's cli list membership invariants so that osc_send_oap_rpc
- * can find pages to build into rpcs quickly */
+ * can find pages to build into rpcs quickly
+ */
 static int __osc_list_maint(struct client_obd *cli, struct osc_object *osc)
 {
 	if (osc_makes_hprpc(osc)) {
@@ -1761,7 +1788,8 @@ static int osc_list_maint(struct client_obd *cli, struct osc_object *osc)
  * application.  As an async write fails we record the error code for later if
  * the app does an fsync.  As long as errors persist we force future rpcs to be
  * sync so that the app can get a sync error and break the cycle of queueing
- * pages for which writeback will fail. */
+ * pages for which writeback will fail.
+ */
 static void osc_process_ar(struct osc_async_rc *ar, __u64 xid,
 			   int rc)
 {
@@ -1780,7 +1808,8 @@ static void osc_process_ar(struct osc_async_rc *ar, __u64 xid,
 }
 
 /* this must be called holding the loi list lock to give coverage to exit_cache,
- * async_flag maintenance, and oap_request */
+ * async_flag maintenance, and oap_request
+ */
 static void osc_ap_completion(const struct lu_env *env, struct client_obd *cli,
 			      struct osc_async_page *oap, int sent, int rc)
 {
@@ -1788,7 +1817,7 @@ static void osc_ap_completion(const struct lu_env *env, struct client_obd *cli,
 	struct lov_oinfo *loi = osc->oo_oinfo;
 	__u64 xid = 0;
 
-	if (oap->oap_request != NULL) {
+	if (oap->oap_request) {
 		xid = ptlrpc_req_xid(oap->oap_request);
 		ptlrpc_req_finished(oap->oap_request);
 		oap->oap_request = NULL;
@@ -1906,7 +1935,7 @@ static int get_write_extents(struct osc_object *obj, struct list_head *rpclist)
 		while ((ext = next_extent(ext)) != NULL) {
 			if ((ext->oe_state != OES_CACHE) ||
 			    (!list_empty(&ext->oe_link) &&
-			     ext->oe_owner != NULL))
+			     ext->oe_owner))
 				continue;
 
 			if (!try_to_add_extent_for_io(cli, ext, rpclist,
@@ -1918,10 +1947,10 @@ static int get_write_extents(struct osc_object *obj, struct list_head *rpclist)
 		return page_count;
 
 	ext = first_extent(obj);
-	while (ext != NULL) {
+	while (ext) {
 		if ((ext->oe_state != OES_CACHE) ||
 		    /* this extent may be already in current rpclist */
-		    (!list_empty(&ext->oe_link) && ext->oe_owner != NULL)) {
+		    (!list_empty(&ext->oe_link) && ext->oe_owner)) {
 			ext = next_extent(ext);
 			continue;
 		}
@@ -1968,7 +1997,8 @@ osc_send_write_rpc(const struct lu_env *env, struct client_obd *cli,
 	}
 
 	/* we're going to grab page lock, so release object lock because
-	 * lock order is page lock -> object lock. */
+	 * lock order is page lock -> object lock.
+	 */
 	osc_object_unlock(osc);
 
 	list_for_each_entry_safe(ext, tmp, &rpclist, oe_link) {
@@ -1980,7 +2010,7 @@ osc_send_write_rpc(const struct lu_env *env, struct client_obd *cli,
 				continue;
 			}
 		}
-		if (first == NULL) {
+		if (!first) {
 			first = ext;
 			srvlock = ext->oe_srvlock;
 		} else {
@@ -2053,12 +2083,14 @@ osc_send_read_rpc(const struct lu_env *env, struct client_obd *cli,
 })
 
 /* This is called by osc_check_rpcs() to find which objects have pages that
- * we could be sending.  These lists are maintained by osc_makes_rpc(). */
+ * we could be sending.  These lists are maintained by osc_makes_rpc().
+ */
 static struct osc_object *osc_next_obj(struct client_obd *cli)
 {
 	/* First return objects that have blocked locks so that they
 	 * will be flushed quickly and other clients can get the lock,
-	 * then objects which have pages ready to be stuffed into RPCs */
+	 * then objects which have pages ready to be stuffed into RPCs
+	 */
 	if (!list_empty(&cli->cl_loi_hp_ready_list))
 		return list_to_obj(&cli->cl_loi_hp_ready_list, hp_ready_item);
 	if (!list_empty(&cli->cl_loi_ready_list))
@@ -2067,14 +2099,16 @@ static struct osc_object *osc_next_obj(struct client_obd *cli)
 	/* then if we have cache waiters, return all objects with queued
 	 * writes.  This is especially important when many small files
 	 * have filled up the cache and not been fired into rpcs because
-	 * they don't pass the nr_pending/object threshold */
+	 * they don't pass the nr_pending/object threshold
+	 */
 	if (!list_empty(&cli->cl_cache_waiters) &&
 	    !list_empty(&cli->cl_loi_write_list))
 		return list_to_obj(&cli->cl_loi_write_list, write_item);
 
 	/* then return all queued objects when we have an invalid import
-	 * so that they get flushed */
-	if (cli->cl_import == NULL || cli->cl_import->imp_invalid) {
+	 * so that they get flushed
+	 */
+	if (!cli->cl_import || cli->cl_import->imp_invalid) {
 		if (!list_empty(&cli->cl_loi_write_list))
 			return list_to_obj(&cli->cl_loi_write_list, write_item);
 		if (!list_empty(&cli->cl_loi_read_list))
@@ -2111,7 +2145,8 @@ static void osc_check_rpcs(const struct lu_env *env, struct client_obd *cli)
 		 * would be redundant if we were getting read/write work items
 		 * instead of objects.  we don't want send_oap_rpc to drain a
 		 * partial read pending queue when we're given this object to
-		 * do io on writes while there are cache waiters */
+		 * do io on writes while there are cache waiters
+		 */
 		osc_object_lock(osc);
 		if (osc_makes_rpc(cli, osc, OBD_BRW_WRITE)) {
 			rc = osc_send_write_rpc(env, cli, osc);
@@ -2133,7 +2168,8 @@ static void osc_check_rpcs(const struct lu_env *env, struct client_obd *cli)
 				 * because it might be blocked at grabbing
 				 * the page lock as we mentioned.
 				 *
-				 * Anyway, continue to drain pages. */
+				 * Anyway, continue to drain pages.
+				 */
 				/* break; */
 			}
 		}
@@ -2158,12 +2194,13 @@ static int osc_io_unplug0(const struct lu_env *env, struct client_obd *cli,
 {
 	int rc = 0;
 
-	if (osc != NULL && osc_list_maint(cli, osc) == 0)
+	if (osc && osc_list_maint(cli, osc) == 0)
 		return 0;
 
 	if (!async) {
 		/* disable osc_lru_shrink() temporarily to avoid
-		 * potential stack overrun problem. LU-2859 */
+		 * potential stack overrun problem. LU-2859
+		 */
 		atomic_inc(&cli->cl_lru_shrinkers);
 		client_obd_list_lock(&cli->cl_loi_list_lock);
 		osc_check_rpcs(env, cli);
@@ -2171,7 +2208,7 @@ static int osc_io_unplug0(const struct lu_env *env, struct client_obd *cli,
 		atomic_dec(&cli->cl_lru_shrinkers);
 	} else {
 		CDEBUG(D_CACHE, "Queue writeback work for client %p.\n", cli);
-		LASSERT(cli->cl_writeback_work != NULL);
+		LASSERT(cli->cl_writeback_work);
 		rc = ptlrpcd_queue_work(cli->cl_writeback_work);
 	}
 	return rc;
@@ -2236,7 +2273,7 @@ int osc_queue_async_io(const struct lu_env *env, struct cl_io *io,
 	if (oap->oap_magic != OAP_MAGIC)
 		return -EINVAL;
 
-	if (cli->cl_import == NULL || cli->cl_import->imp_invalid)
+	if (!cli->cl_import || cli->cl_import->imp_invalid)
 		return -EIO;
 
 	if (!list_empty(&oap->oap_pending_item) ||
@@ -2287,12 +2324,14 @@ int osc_queue_async_io(const struct lu_env *env, struct cl_io *io,
 	 * 1. if there exists an active extent for this IO, mostly this page
 	 *    can be added to the active extent and sometimes we need to
 	 *    expand extent to accommodate this page;
-	 * 2. otherwise, a new extent will be allocated. */
+	 * 2. otherwise, a new extent will be allocated.
+	 */
 
 	ext = oio->oi_active;
-	if (ext != NULL && ext->oe_start <= index && ext->oe_max_end >= index) {
+	if (ext && ext->oe_start <= index && ext->oe_max_end >= index) {
 		/* one chunk plus extent overhead must be enough to write this
-		 * page */
+		 * page
+		 */
 		grants = (1 << cli->cl_chunkbits) + cli->cl_extent_tax;
 		if (ext->oe_end >= index)
 			grants = 0;
@@ -2319,7 +2358,7 @@ int osc_queue_async_io(const struct lu_env *env, struct cl_io *io,
 			}
 		}
 		rc = 0;
-	} else if (ext != NULL) {
+	} else if (ext) {
 		/* index is located outside of active extent */
 		need_release = 1;
 	}
@@ -2329,13 +2368,14 @@ int osc_queue_async_io(const struct lu_env *env, struct cl_io *io,
 		ext = NULL;
 	}
 
-	if (ext == NULL) {
+	if (!ext) {
 		int tmp = (1 << cli->cl_chunkbits) + cli->cl_extent_tax;
 
 		/* try to find new extent to cover this page */
-		LASSERT(oio->oi_active == NULL);
+		LASSERT(!oio->oi_active);
 		/* we may have allocated grant for this page if we failed
-		 * to expand the previous active extent. */
+		 * to expand the previous active extent.
+		 */
 		LASSERT(ergo(grants > 0, grants >= tmp));
 
 		rc = 0;
@@ -2362,8 +2402,8 @@ int osc_queue_async_io(const struct lu_env *env, struct cl_io *io,
 			osc_unreserve_grant(cli, grants, tmp);
 	}
 
-	LASSERT(ergo(rc == 0, ext != NULL));
-	if (ext != NULL) {
+	LASSERT(ergo(rc == 0, ext));
+	if (ext) {
 		EASSERTF(ext->oe_end >= index && ext->oe_start <= index,
 			 ext, "index = %lu.\n", index);
 		LASSERT((oap->oap_brw_flags & OBD_BRW_FROM_GRANT) != 0);
@@ -2400,15 +2440,16 @@ int osc_teardown_async_page(const struct lu_env *env,
 		ext = osc_extent_lookup(obj, oap2cl_page(oap)->cp_index);
 		/* only truncated pages are allowed to be taken out.
 		 * See osc_extent_truncate() and osc_cache_truncate_start()
-		 * for details. */
-		if (ext != NULL && ext->oe_state != OES_TRUNC) {
+		 * for details.
+		 */
+		if (ext && ext->oe_state != OES_TRUNC) {
 			OSC_EXTENT_DUMP(D_ERROR, ext, "trunc at %lu.\n",
 					oap2cl_page(oap)->cp_index);
 			rc = -EBUSY;
 		}
 	}
 	osc_object_unlock(obj);
-	if (ext != NULL)
+	if (ext)
 		osc_extent_put(env, ext);
 	return rc;
 }
@@ -2433,7 +2474,7 @@ int osc_flush_async_page(const struct lu_env *env, struct cl_io *io,
 
 	osc_object_lock(obj);
 	ext = osc_extent_lookup(obj, index);
-	if (ext == NULL) {
+	if (!ext) {
 		osc_extent_tree_dump(D_ERROR, obj);
 		LASSERTF(0, "page index %lu is NOT covered.\n", index);
 	}
@@ -2451,7 +2492,8 @@ int osc_flush_async_page(const struct lu_env *env, struct cl_io *io,
 		 * exists a deadlock problem because other process can wait for
 		 * page writeback bit holding page lock; and meanwhile in
 		 * vvp_page_make_ready(), we need to grab page lock before
-		 * really sending the RPC. */
+		 * really sending the RPC.
+		 */
 	case OES_TRUNC:
 		/* race with truncate, page will be redirtied */
 	case OES_ACTIVE:
@@ -2459,7 +2501,8 @@ int osc_flush_async_page(const struct lu_env *env, struct cl_io *io,
 		 * re-dirty the page. If we continued on here, and we were the
 		 * one making the extent active, we could deadlock waiting for
 		 * the page writeback to clear but it won't because the extent
-		 * is active and won't be written out. */
+		 * is active and won't be written out.
+		 */
 		rc = -EAGAIN;
 		goto out;
 	default:
@@ -2530,12 +2573,13 @@ int osc_cancel_async_page(const struct lu_env *env, struct osc_page *ops)
 		if (ext->oe_start <= index && ext->oe_end >= index) {
 			LASSERT(ext->oe_state == OES_LOCK_DONE);
 			/* For OES_LOCK_DONE state extent, it has already held
-			 * a refcount for RPC. */
+			 * a refcount for RPC.
+			 */
 			found = osc_extent_get(ext);
 			break;
 		}
 	}
-	if (found != NULL) {
+	if (found) {
 		list_del_init(&found->oe_link);
 		osc_update_pending(obj, cmd, -found->oe_nr_pages);
 		osc_object_unlock(obj);
@@ -2546,8 +2590,9 @@ int osc_cancel_async_page(const struct lu_env *env, struct osc_page *ops)
 	} else {
 		osc_object_unlock(obj);
 		/* ok, it's been put in an rpc. only one oap gets a request
-		 * reference */
-		if (oap->oap_request != NULL) {
+		 * reference
+		 */
+		if (oap->oap_request) {
 			ptlrpc_mark_interrupted(oap->oap_request);
 			ptlrpcd_wake(oap->oap_request);
 			ptlrpc_req_finished(oap->oap_request);
@@ -2582,7 +2627,7 @@ int osc_queue_sync_pages(const struct lu_env *env, struct osc_object *obj,
 	}
 
 	ext = osc_extent_alloc(obj);
-	if (ext == NULL) {
+	if (!ext) {
 		list_for_each_entry_safe(oap, tmp, list, oap_pending_item) {
 			list_del_init(&oap->oap_pending_item);
 			osc_ap_completion(env, cli, oap, 0, -ENOMEM);
@@ -2637,18 +2682,19 @@ int osc_cache_truncate_start(const struct lu_env *env, struct osc_io *oio,
 again:
 	osc_object_lock(obj);
 	ext = osc_extent_search(obj, index);
-	if (ext == NULL)
+	if (!ext)
 		ext = first_extent(obj);
 	else if (ext->oe_end < index)
 		ext = next_extent(ext);
-	while (ext != NULL) {
+	while (ext) {
 		EASSERT(ext->oe_state != OES_TRUNC, ext);
 
 		if (ext->oe_state > OES_CACHE || ext->oe_urgent) {
 			/* if ext is in urgent state, it means there must exist
 			 * a page already having been flushed by write_page().
 			 * We have to wait for this extent because we can't
-			 * truncate that page. */
+			 * truncate that page.
+			 */
 			LASSERT(!ext->oe_hp);
 			OSC_EXTENT_DUMP(D_CACHE, ext,
 					"waiting for busy extent\n");
@@ -2663,7 +2709,8 @@ again:
 			/* though we grab inode mutex for write path, but we
 			 * release it before releasing extent(in osc_io_end()),
 			 * so there is a race window that an extent is still
-			 * in OES_ACTIVE when truncate starts. */
+			 * in OES_ACTIVE when truncate starts.
+			 */
 			LASSERT(!ext->oe_trunc_pending);
 			ext->oe_trunc_pending = 1;
 		} else {
@@ -2688,7 +2735,8 @@ again:
 		list_del_init(&ext->oe_link);
 
 		/* extent may be in OES_ACTIVE state because inode mutex
-		 * is released before osc_io_end() in file write case */
+		 * is released before osc_io_end() in file write case
+		 */
 		if (ext->oe_state != OES_TRUNC)
 			osc_extent_wait(env, ext, OES_TRUNC);
 
@@ -2713,19 +2761,21 @@ again:
 
 			/* we need to hold this extent in OES_TRUNC state so
 			 * that no writeback will happen. This is to avoid
-			 * BUG 17397. */
-			LASSERT(oio->oi_trunc == NULL);
+			 * BUG 17397.
+			 */
+			LASSERT(!oio->oi_trunc);
 			oio->oi_trunc = osc_extent_get(ext);
 			OSC_EXTENT_DUMP(D_CACHE, ext,
 					"trunc at %llu\n", size);
 		}
 		osc_extent_put(env, ext);
 	}
-	if (waiting != NULL) {
+	if (waiting) {
 		int rc;
 
 		/* ignore the result of osc_extent_wait the write initiator
-		 * should take care of it. */
+		 * should take care of it.
+		 */
 		rc = osc_extent_wait(env, waiting, OES_INV);
 		if (rc < 0)
 			OSC_EXTENT_DUMP(D_CACHE, waiting, "error: %d.\n", rc);
@@ -2746,7 +2796,7 @@ void osc_cache_truncate_end(const struct lu_env *env, struct osc_io *oio,
 	struct osc_extent *ext = oio->oi_trunc;
 
 	oio->oi_trunc = NULL;
-	if (ext != NULL) {
+	if (ext) {
 		bool unplug = false;
 
 		EASSERT(ext->oe_nr_pages > 0, ext);
@@ -2789,11 +2839,11 @@ int osc_cache_wait_range(const struct lu_env *env, struct osc_object *obj,
 again:
 	osc_object_lock(obj);
 	ext = osc_extent_search(obj, index);
-	if (ext == NULL)
+	if (!ext)
 		ext = first_extent(obj);
 	else if (ext->oe_end < index)
 		ext = next_extent(ext);
-	while (ext != NULL) {
+	while (ext) {
 		int rc;
 
 		if (ext->oe_start > end)
@@ -2844,11 +2894,11 @@ int osc_cache_writeback_range(const struct lu_env *env, struct osc_object *obj,
 
 	osc_object_lock(obj);
 	ext = osc_extent_search(obj, start);
-	if (ext == NULL)
+	if (!ext)
 		ext = first_extent(obj);
 	else if (ext->oe_end < start)
 		ext = next_extent(ext);
-	while (ext != NULL) {
+	while (ext) {
 		if (ext->oe_start > end)
 			break;
 
@@ -2867,12 +2917,13 @@ int osc_cache_writeback_range(const struct lu_env *env, struct osc_object *obj,
 					ext->oe_urgent = 1;
 					list = &obj->oo_urgent_exts;
 				}
-				if (list != NULL)
+				if (list)
 					list_move_tail(&ext->oe_link, list);
 				unplug = true;
 			} else {
 				/* the only discarder is lock cancelling, so
-				 * [start, end] must contain this extent */
+				 * [start, end] must contain this extent
+				 */
 				EASSERT(ext->oe_start >= start &&
 					ext->oe_max_end <= end, ext);
 				osc_extent_state_set(ext, OES_LOCKING);
@@ -2887,14 +2938,16 @@ int osc_cache_writeback_range(const struct lu_env *env, struct osc_object *obj,
 			/* It's pretty bad to wait for ACTIVE extents, because
 			 * we don't know how long we will wait for it to be
 			 * flushed since it may be blocked at awaiting more
-			 * grants. We do this for the correctness of fsync. */
+			 * grants. We do this for the correctness of fsync.
+			 */
 			LASSERT(hp == 0 && discard == 0);
 			ext->oe_urgent = 1;
 			break;
 		case OES_TRUNC:
 			/* this extent is being truncated, can't do anything
 			 * for it now. it will be set to urgent after truncate
-			 * is finished in osc_cache_truncate_end(). */
+			 * is finished in osc_cache_truncate_end().
+			 */
 		default:
 			break;
 		}
@@ -2913,7 +2966,8 @@ int osc_cache_writeback_range(const struct lu_env *env, struct osc_object *obj,
 			EASSERT(ext->oe_state == OES_LOCKING, ext);
 
 			/* Discard caching pages. We don't actually write this
-			 * extent out but we complete it as if we did. */
+			 * extent out but we complete it as if we did.
+			 */
 			rc = osc_extent_make_ready(env, ext);
 			if (unlikely(rc < 0)) {
 				OSC_EXTENT_DUMP(D_ERROR, ext,
diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h
index 415c27e..d55d04d 100644
--- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h
+++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h
@@ -69,10 +69,12 @@ struct osc_io {
 	/** true if this io is lockless. */
 	int		oi_lockless;
 	/** active extents, we know how many bytes is going to be written,
-	 * so having an active extent will prevent it from being fragmented */
+	 * so having an active extent will prevent it from being fragmented
+	 */
 	struct osc_extent *oi_active;
 	/** partially truncated extent, we need to hold this extent to prevent
-	 * page writeback from happening. */
+	 * page writeback from happening.
+	 */
 	struct osc_extent *oi_trunc;
 
 	struct obd_info    oi_info;
@@ -154,7 +156,8 @@ struct osc_object {
 	atomic_t	 oo_nr_writes;
 
 	/** Protect extent tree. Will be used to protect
-	 * oo_{read|write}_pages soon. */
+	 * oo_{read|write}_pages soon.
+	 */
 	spinlock_t	    oo_lock;
 };
 
@@ -472,7 +475,7 @@ static inline struct osc_thread_info *osc_env_info(const struct lu_env *env)
 	struct osc_thread_info *info;
 
 	info = lu_context_key_get(&env->le_ctx, &osc_key);
-	LASSERT(info != NULL);
+	LASSERT(info);
 	return info;
 }
 
@@ -481,7 +484,7 @@ static inline struct osc_session *osc_env_session(const struct lu_env *env)
 	struct osc_session *ses;
 
 	ses = lu_context_key_get(env->le_ses, &osc_session_key);
-	LASSERT(ses != NULL);
+	LASSERT(ses);
 	return ses;
 }
 
@@ -522,7 +525,7 @@ static inline struct cl_object *osc2cl(const struct osc_object *obj)
 	return (struct cl_object *)&obj->oo_cl;
 }
 
-static inline ldlm_mode_t osc_cl_lock2ldlm(enum cl_lock_mode mode)
+static inline enum ldlm_mode osc_cl_lock2ldlm(enum cl_lock_mode mode)
 {
 	LASSERT(mode == CLM_READ || mode == CLM_WRITE || mode == CLM_GROUP);
 	if (mode == CLM_READ)
@@ -533,7 +536,7 @@ static inline ldlm_mode_t osc_cl_lock2ldlm(enum cl_lock_mode mode)
 		return LCK_GROUP;
 }
 
-static inline enum cl_lock_mode osc_ldlm2cl_lock(ldlm_mode_t mode)
+static inline enum cl_lock_mode osc_ldlm2cl_lock(enum ldlm_mode mode)
 {
 	LASSERT(mode == LCK_PR || mode == LCK_PW || mode == LCK_GROUP);
 	if (mode == LCK_PR)
@@ -627,22 +630,26 @@ struct osc_extent {
 			   oe_srvlock:1,
 			   oe_memalloc:1,
 	/** an ACTIVE extent is going to be truncated, so when this extent
-	 * is released, it will turn into TRUNC state instead of CACHE. */
+	 * is released, it will turn into TRUNC state instead of CACHE.
+	 */
 			   oe_trunc_pending:1,
 	/** this extent should be written asap and someone may wait for the
 	 * write to finish. This bit is usually set along with urgent if
 	 * the extent was CACHE state.
 	 * fsync_wait extent can't be merged because new extent region may
-	 * exceed fsync range. */
+	 * exceed fsync range.
+	 */
 			   oe_fsync_wait:1,
 	/** covering lock is being canceled */
 			   oe_hp:1,
 	/** this extent should be written back asap. set if one of pages is
-	 * called by page WB daemon, or sync write or reading requests. */
+	 * called by page WB daemon, or sync write or reading requests.
+	 */
 			   oe_urgent:1;
 	/** how many grants allocated for this extent.
 	 *  Grant allocated for this extent. There is no grant allocated
-	 *  for reading extents and sync write extents. */
+	 *  for reading extents and sync write extents.
+	 */
 	unsigned int       oe_grants;
 	/** # of dirty pages in this extent */
 	unsigned int       oe_nr_pages;
@@ -655,21 +662,25 @@ struct osc_extent {
 	struct osc_page   *oe_next_page;
 	/** start and end index of this extent, include start and end
 	 * themselves. Page offset here is the page index of osc_pages.
-	 * oe_start is used as keyword for red-black tree. */
+	 * oe_start is used as keyword for red-black tree.
+	 */
 	pgoff_t	    oe_start;
 	pgoff_t	    oe_end;
 	/** maximum ending index of this extent, this is limited by
-	 * max_pages_per_rpc, lock extent and chunk size. */
+	 * max_pages_per_rpc, lock extent and chunk size.
+	 */
 	pgoff_t	    oe_max_end;
 	/** waitqueue - for those who want to be notified if this extent's
-	 * state has changed. */
+	 * state has changed.
+	 */
 	wait_queue_head_t	oe_waitq;
 	/** lock covering this extent */
 	struct cl_lock    *oe_osclock;
 	/** terminator of this extent. Must be true if this extent is in IO. */
 	struct task_struct	*oe_owner;
 	/** return value of writeback. If somebody is waiting for this extent,
-	 * this value can be known by outside world. */
+	 * this value can be known by outside world.
+	 */
 	int		oe_rc;
 	/** max pages per rpc when this extent was created */
 	unsigned int       oe_mppr;
diff --git a/drivers/staging/lustre/lustre/osc/osc_dev.c b/drivers/staging/lustre/lustre/osc/osc_dev.c
index 7078cc5..67cb6e4 100644
--- a/drivers/staging/lustre/lustre/osc/osc_dev.c
+++ b/drivers/staging/lustre/lustre/osc/osc_dev.c
@@ -123,7 +123,7 @@ static void *osc_key_init(const struct lu_context *ctx,
 	struct osc_thread_info *info;
 
 	info = kmem_cache_alloc(osc_thread_kmem, GFP_NOFS | __GFP_ZERO);
-	if (info == NULL)
+	if (!info)
 		info = ERR_PTR(-ENOMEM);
 	return info;
 }
@@ -148,7 +148,7 @@ static void *osc_session_init(const struct lu_context *ctx,
 	struct osc_session *info;
 
 	info = kmem_cache_alloc(osc_session_kmem, GFP_NOFS | __GFP_ZERO);
-	if (info == NULL)
+	if (!info)
 		info = ERR_PTR(-ENOMEM);
 	return info;
 }
@@ -228,7 +228,7 @@ static struct lu_device *osc_device_alloc(const struct lu_env *env,
 
 	/* Setup OSC OBD */
 	obd = class_name2obd(lustre_cfg_string(cfg, 0));
-	LASSERT(obd != NULL);
+	LASSERT(obd);
 	rc = osc_setup(obd, cfg);
 	if (rc) {
 		osc_device_free(env, d);
diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h
index a4c6146..ea695c2 100644
--- a/drivers/staging/lustre/lustre/osc/osc_internal.h
+++ b/drivers/staging/lustre/lustre/osc/osc_internal.h
@@ -47,11 +47,13 @@ struct lu_env;
 
 enum async_flags {
 	ASYNC_READY = 0x1, /* ap_make_ready will not be called before this
-			      page is added to an rpc */
+			    * page is added to an rpc
+			    */
 	ASYNC_URGENT = 0x2, /* page must be put into an RPC before return */
 	ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called
-				     to give the caller a chance to update
-				     or cancel the size of the io */
+				   * to give the caller a chance to update
+				   * or cancel the size of the io
+				   */
 	ASYNC_HP = 0x10,
 };
 
diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c
index abd0beb..2d8d93c 100644
--- a/drivers/staging/lustre/lustre/osc/osc_io.c
+++ b/drivers/staging/lustre/lustre/osc/osc_io.c
@@ -73,7 +73,7 @@ static struct osc_page *osc_cl_page_osc(struct cl_page *page)
 	const struct cl_page_slice *slice;
 
 	slice = cl_page_at(page, &osc_device_type);
-	LASSERT(slice != NULL);
+	LASSERT(slice);
 
 	return cl2osc_page(slice);
 }
@@ -135,7 +135,7 @@ static int osc_io_submit(const struct lu_env *env,
 
 		/* Top level IO. */
 		io = page->cp_owner;
-		LASSERT(io != NULL);
+		LASSERT(io);
 
 		opg = osc_cl_page_osc(page);
 		oap = &opg->ops_oap;
@@ -266,13 +266,14 @@ static int osc_io_prepare_write(const struct lu_env *env,
 	 * This implements OBD_BRW_CHECK logic from old client.
 	 */
 
-	if (imp == NULL || imp->imp_invalid)
+	if (!imp || imp->imp_invalid)
 		result = -EIO;
 	if (result == 0 && oio->oi_lockless)
 		/* this page contains `invalid' data, but who cares?
 		 * nobody can access the invalid data.
 		 * in osc_io_commit_write(), we're going to write exact
-		 * [from, to) bytes of this page to OST. -jay */
+		 * [from, to) bytes of this page to OST. -jay
+		 */
 		cl_page_export(env, slice->cpl_page, 1);
 
 	return result;
@@ -349,7 +350,7 @@ static int trunc_check_cb(const struct lu_env *env, struct cl_io *io,
 	__u64 start = *(__u64 *)cbdata;
 
 	slice = cl_page_at(page, &osc_device_type);
-	LASSERT(slice != NULL);
+	LASSERT(slice);
 	ops = cl2osc_page(slice);
 	oap = &ops->ops_oap;
 
@@ -500,7 +501,7 @@ static void osc_io_setattr_end(const struct lu_env *env,
 		__u64 size = io->u.ci_setattr.sa_attr.lvb_size;
 
 		osc_trunc_check(env, io, oio, size);
-		if (oio->oi_trunc != NULL) {
+		if (oio->oi_trunc) {
 			osc_cache_truncate_end(env, oio, cl2osc(obj));
 			oio->oi_trunc = NULL;
 		}
@@ -596,7 +597,8 @@ static int osc_io_fsync_start(const struct lu_env *env,
 		 * send OST_SYNC RPC. This is bad because it causes extents
 		 * to be written osc by osc. However, we usually start
 		 * writeback before CL_FSYNC_ALL so this won't have any real
-		 * problem. */
+		 * problem.
+		 */
 		rc = osc_cache_wait_range(env, osc, start, end);
 		if (result == 0)
 			result = rc;
@@ -754,7 +756,7 @@ static void osc_req_attr_set(const struct lu_env *env,
 		opg = osc_cl_page_osc(apage);
 		apage = opg->ops_cl.cpl_page; /* now apage is a sub-page */
 		lock = cl_lock_at_page(env, apage->cp_obj, apage, NULL, 1, 1);
-		if (lock == NULL) {
+		if (!lock) {
 			struct cl_object_header *head;
 			struct cl_lock *scan;
 
@@ -770,10 +772,9 @@ static void osc_req_attr_set(const struct lu_env *env,
 		}
 
 		olck = osc_lock_at(lock);
-		LASSERT(olck != NULL);
-		LASSERT(ergo(opg->ops_srvlock, olck->ols_lock == NULL));
+		LASSERT(ergo(opg->ops_srvlock, !olck->ols_lock));
 		/* check for lockless io. */
-		if (olck->ols_lock != NULL) {
+		if (olck->ols_lock) {
 			oa->o_handle = olck->ols_lock->l_remote_handle;
 			oa->o_valid |= OBD_MD_FLHANDLE;
 		}
@@ -804,7 +805,7 @@ int osc_req_init(const struct lu_env *env, struct cl_device *dev,
 	int result;
 
 	or = kmem_cache_alloc(osc_req_kmem, GFP_NOFS | __GFP_ZERO);
-	if (or != NULL) {
+	if (or) {
 		cl_req_slice_add(req, &or->or_cl, dev, &osc_req_ops);
 		result = 0;
 	} else
diff --git a/drivers/staging/lustre/lustre/osc/osc_lock.c b/drivers/staging/lustre/lustre/osc/osc_lock.c
index 71f2810..87f3522 100644
--- a/drivers/staging/lustre/lustre/osc/osc_lock.c
+++ b/drivers/staging/lustre/lustre/osc/osc_lock.c
@@ -79,7 +79,7 @@ static struct ldlm_lock *osc_handle_ptr(struct lustre_handle *handle)
 	struct ldlm_lock *lock;
 
 	lock = ldlm_handle2lock(handle);
-	if (lock != NULL)
+	if (lock)
 		LDLM_LOCK_PUT(lock);
 	return lock;
 }
@@ -94,42 +94,40 @@ static int osc_lock_invariant(struct osc_lock *ols)
 	int handle_used = lustre_handle_is_used(&ols->ols_handle);
 
 	if (ergo(osc_lock_is_lockless(ols),
-		 ols->ols_locklessable && ols->ols_lock == NULL))
+		 ols->ols_locklessable && !ols->ols_lock))
 		return 1;
 
 	/*
 	 * If all the following "ergo"s are true, return 1, otherwise 0
 	 */
-	if (!ergo(olock != NULL, handle_used))
+	if (!ergo(olock, handle_used))
 		return 0;
 
-	if (!ergo(olock != NULL,
-		   olock->l_handle.h_cookie == ols->ols_handle.cookie))
+	if (!ergo(olock, olock->l_handle.h_cookie == ols->ols_handle.cookie))
 		return 0;
 
 	if (!ergo(handle_used,
-		   ergo(lock != NULL && olock != NULL, lock == olock) &&
-		   ergo(lock == NULL, olock == NULL)))
+		  ergo(lock && olock, lock == olock) &&
+		  ergo(!lock, !olock)))
 		return 0;
 	/*
 	 * Check that ->ols_handle and ->ols_lock are consistent, but
 	 * take into account that they are set at the different time.
 	 */
 	if (!ergo(ols->ols_state == OLS_CANCELLED,
-		   olock == NULL && !handle_used))
+		  !olock && !handle_used))
 		return 0;
 	/*
 	 * DLM lock is destroyed only after we have seen cancellation
 	 * ast.
 	 */
-	if (!ergo(olock != NULL && ols->ols_state < OLS_CANCELLED,
-		   ((olock->l_flags & LDLM_FL_DESTROYED) == 0)))
+	if (!ergo(olock && ols->ols_state < OLS_CANCELLED,
+		  ((olock->l_flags & LDLM_FL_DESTROYED) == 0)))
 		return 0;
 
 	if (!ergo(ols->ols_state == OLS_GRANTED,
-		   olock != NULL &&
-		   olock->l_req_mode == olock->l_granted_mode &&
-		   ols->ols_hold))
+		  olock && olock->l_req_mode == olock->l_granted_mode &&
+		  ols->ols_hold))
 		return 0;
 	return 1;
 }
@@ -149,14 +147,15 @@ static void osc_lock_detach(const struct lu_env *env, struct osc_lock *olck)
 
 	spin_lock(&osc_ast_guard);
 	dlmlock = olck->ols_lock;
-	if (dlmlock == NULL) {
+	if (!dlmlock) {
 		spin_unlock(&osc_ast_guard);
 		return;
 	}
 
 	olck->ols_lock = NULL;
 	/* wb(); --- for all who checks (ols->ols_lock != NULL) before
-	 * call to osc_lock_detach() */
+	 * call to osc_lock_detach()
+	 */
 	dlmlock->l_ast_data = NULL;
 	olck->ols_handle.cookie = 0ULL;
 	spin_unlock(&osc_ast_guard);
@@ -171,7 +170,8 @@ static void osc_lock_detach(const struct lu_env *env, struct osc_lock *olck)
 		/* Must get the value under the lock to avoid possible races. */
 		old_kms = cl2osc(obj)->oo_oinfo->loi_kms;
 		/* Update the kms. Need to loop all granted locks.
-		 * Not a problem for the client */
+		 * Not a problem for the client
+		 */
 		attr->cat_kms = ldlm_extent_shift_kms(dlmlock, old_kms);
 
 		cl_object_attr_set(env, obj, attr, CAT_KMS);
@@ -247,7 +247,7 @@ static void osc_lock_fini(const struct lu_env *env,
 	 * lock is destroyed immediately after upcall.
 	 */
 	osc_lock_unhold(ols);
-	LASSERT(ols->ols_lock == NULL);
+	LASSERT(!ols->ols_lock);
 	LASSERT(atomic_read(&ols->ols_pageref) == 0 ||
 		atomic_read(&ols->ols_pageref) == _PAGEREF_MAGIC);
 
@@ -292,7 +292,7 @@ static struct osc_lock *osc_ast_data_get(struct ldlm_lock *dlm_lock)
 	lock_res_and_lock(dlm_lock);
 	spin_lock(&osc_ast_guard);
 	olck = dlm_lock->l_ast_data;
-	if (olck != NULL) {
+	if (olck) {
 		struct cl_lock *lock = olck->ols_cl.cls_lock;
 		/*
 		 * If osc_lock holds a reference on ldlm lock, return it even
@@ -359,13 +359,13 @@ static void osc_lock_lvb_update(const struct lu_env *env, struct osc_lock *olck,
 		__u64 size;
 
 		dlmlock = olck->ols_lock;
-		LASSERT(dlmlock != NULL);
 
 		/* re-grab LVB from a dlm lock under DLM spin-locks. */
 		*lvb = *(struct ost_lvb *)dlmlock->l_lvb_data;
 		size = lvb->lvb_size;
 		/* Extend KMS up to the end of this lock and no further
-		 * A lock on [x,y] means a KMS of up to y + 1 bytes! */
+		 * A lock on [x,y] means a KMS of up to y + 1 bytes!
+		 */
 		if (size > dlmlock->l_policy_data.l_extent.end)
 			size = dlmlock->l_policy_data.l_extent.end + 1;
 		if (size >= oinfo->loi_kms) {
@@ -429,7 +429,8 @@ static void osc_lock_granted(const struct lu_env *env, struct osc_lock *olck,
 		 * to take a semaphore on a parent lock. This is safe, because
 		 * spin-locks are needed to protect consistency of
 		 * dlmlock->l_*_mode and LVB, and we have finished processing
-		 * them. */
+		 * them.
+		 */
 		unlock_res_and_lock(dlmlock);
 		cl_lock_modify(env, lock, descr);
 		cl_lock_signal(env, lock);
@@ -444,12 +445,12 @@ static void osc_lock_upcall0(const struct lu_env *env, struct osc_lock *olck)
 	struct ldlm_lock *dlmlock;
 
 	dlmlock = ldlm_handle2lock_long(&olck->ols_handle, 0);
-	LASSERT(dlmlock != NULL);
+	LASSERT(dlmlock);
 
 	lock_res_and_lock(dlmlock);
 	spin_lock(&osc_ast_guard);
 	LASSERT(dlmlock->l_ast_data == olck);
-	LASSERT(olck->ols_lock == NULL);
+	LASSERT(!olck->ols_lock);
 	olck->ols_lock = dlmlock;
 	spin_unlock(&osc_ast_guard);
 
@@ -470,7 +471,8 @@ static void osc_lock_upcall0(const struct lu_env *env, struct osc_lock *olck)
 	olck->ols_hold = 1;
 
 	/* lock reference taken by ldlm_handle2lock_long() is owned by
-	 * osc_lock and released in osc_lock_detach() */
+	 * osc_lock and released in osc_lock_detach()
+	 */
 	lu_ref_add(&dlmlock->l_reference, "osc_lock", olck);
 	olck->ols_has_ref = 1;
 }
@@ -508,10 +510,10 @@ static int osc_lock_upcall(void *cookie, int errcode)
 			struct ldlm_lock *dlmlock;
 
 			dlmlock = ldlm_handle2lock(&olck->ols_handle);
-			if (dlmlock != NULL) {
+			if (dlmlock) {
 				lock_res_and_lock(dlmlock);
 				spin_lock(&osc_ast_guard);
-				LASSERT(olck->ols_lock == NULL);
+				LASSERT(!olck->ols_lock);
 				dlmlock->l_ast_data = NULL;
 				olck->ols_handle.cookie = 0ULL;
 				spin_unlock(&osc_ast_guard);
@@ -548,7 +550,8 @@ static int osc_lock_upcall(void *cookie, int errcode)
 			/* For AGL case, the RPC sponsor may exits the cl_lock
 			*  processing without wait() called before related OSC
 			*  lock upcall(). So update the lock status according
-			*  to the enqueue result inside AGL upcall(). */
+			*  to the enqueue result inside AGL upcall().
+			*/
 			if (olck->ols_agl) {
 				lock->cll_flags |= CLF_FROM_UPCALL;
 				cl_wait_try(env, lock);
@@ -571,7 +574,8 @@ static int osc_lock_upcall(void *cookie, int errcode)
 
 		lu_ref_del(&lock->cll_reference, "upcall", lock);
 		/* This maybe the last reference, so must be called after
-		 * cl_lock_mutex_put(). */
+		 * cl_lock_mutex_put().
+		 */
 		cl_lock_put(env, lock);
 
 		cl_env_nested_put(&nest, env);
@@ -634,7 +638,7 @@ static int osc_dlm_blocking_ast0(const struct lu_env *env,
 
 	cancel = 0;
 	olck = osc_ast_data_get(dlmlock);
-	if (olck != NULL) {
+	if (olck) {
 		lock = olck->ols_cl.cls_lock;
 		cl_lock_mutex_get(env, lock);
 		LINVRNT(osc_lock_invariant(olck));
@@ -786,17 +790,17 @@ static int osc_ldlm_completion_ast(struct ldlm_lock *dlmlock,
 	env = cl_env_nested_get(&nest);
 	if (!IS_ERR(env)) {
 		olck = osc_ast_data_get(dlmlock);
-		if (olck != NULL) {
+		if (olck) {
 			lock = olck->ols_cl.cls_lock;
 			cl_lock_mutex_get(env, lock);
 			/*
 			 * ldlm_handle_cp_callback() copied LVB from request
 			 * to lock->l_lvb_data, store it in osc_lock.
 			 */
-			LASSERT(dlmlock->l_lvb_data != NULL);
+			LASSERT(dlmlock->l_lvb_data);
 			lock_res_and_lock(dlmlock);
 			olck->ols_lvb = *(struct ost_lvb *)dlmlock->l_lvb_data;
-			if (olck->ols_lock == NULL) {
+			if (!olck->ols_lock) {
 				/*
 				 * upcall (osc_lock_upcall()) hasn't yet been
 				 * called. Do nothing now, upcall will bind
@@ -850,14 +854,15 @@ static int osc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data)
 		 * environment.
 		 */
 		olck = osc_ast_data_get(dlmlock);
-		if (olck != NULL) {
+		if (olck) {
 			lock = olck->ols_cl.cls_lock;
 			/* Do not grab the mutex of cl_lock for glimpse.
 			 * See LU-1274 for details.
 			 * BTW, it's okay for cl_lock to be cancelled during
 			 * this period because server can handle this race.
 			 * See ldlm_server_glimpse_ast() for details.
-			 * cl_lock_mutex_get(env, lock); */
+			 * cl_lock_mutex_get(env, lock);
+			 */
 			cap = &req->rq_pill;
 			req_capsule_extend(cap, &RQF_LDLM_GL_CALLBACK);
 			req_capsule_set_size(cap, &RMF_DLM_LVB, RCL_SERVER,
@@ -1017,7 +1022,8 @@ static int osc_lock_enqueue_wait(const struct lu_env *env,
 	LASSERT(cl_lock_is_mutexed(lock));
 
 	/* make it enqueue anyway for glimpse lock, because we actually
-	 * don't need to cancel any conflicting locks. */
+	 * don't need to cancel any conflicting locks.
+	 */
 	if (olck->ols_glimpse)
 		return 0;
 
@@ -1051,7 +1057,8 @@ static int osc_lock_enqueue_wait(const struct lu_env *env,
 		 * imagine that client has PR lock on [0, 1000], and thread T0
 		 * is doing lockless IO in [500, 1500] region. Concurrent
 		 * thread T1 can see lockless data in [500, 1000], which is
-		 * wrong, because these data are possibly stale. */
+		 * wrong, because these data are possibly stale.
+		 */
 		if (!lockless && osc_lock_compatible(olck, scan_ols))
 			continue;
 
@@ -1074,7 +1081,7 @@ static int osc_lock_enqueue_wait(const struct lu_env *env,
 		} else {
 			CDEBUG(D_DLMTRACE, "lock %p is conflicted with %p, will wait\n",
 			       lock, conflict);
-			LASSERT(lock->cll_conflict == NULL);
+			LASSERT(!lock->cll_conflict);
 			lu_ref_add(&conflict->cll_reference, "cancel-wait",
 				   lock);
 			lock->cll_conflict = conflict;
@@ -1123,7 +1130,8 @@ static int osc_lock_enqueue(const struct lu_env *env,
 			struct ldlm_enqueue_info *einfo = &ols->ols_einfo;
 
 			/* lock will be passed as upcall cookie,
-			 * hold ref to prevent to be released. */
+			 * hold ref to prevent to be released.
+			 */
 			cl_lock_hold_add(env, lock, "upcall", lock);
 			/* a user for lock also */
 			cl_lock_user_add(env, lock);
@@ -1174,7 +1182,8 @@ static int osc_lock_wait(const struct lu_env *env,
 		} else if (olck->ols_agl) {
 			if (lock->cll_flags & CLF_FROM_UPCALL)
 				/* It is from enqueue RPC reply upcall for
-				 * updating state. Do not re-enqueue. */
+				 * updating state. Do not re-enqueue.
+				 */
 				return -ENAVAIL;
 			olck->ols_state = OLS_NEW;
 		} else {
@@ -1197,7 +1206,7 @@ static int osc_lock_wait(const struct lu_env *env,
 	}
 
 	LASSERT(equi(olck->ols_state >= OLS_UPCALL_RECEIVED &&
-		     lock->cll_error == 0, olck->ols_lock != NULL));
+		     lock->cll_error == 0, olck->ols_lock));
 
 	return lock->cll_error ?: olck->ols_state >= OLS_GRANTED ? 0 : CLO_WAIT;
 }
@@ -1235,7 +1244,8 @@ static int osc_lock_use(const struct lu_env *env,
 		LASSERT(lock->cll_state == CLS_INTRANSIT);
 		LASSERT(lock->cll_users > 0);
 		/* set a flag for osc_dlm_blocking_ast0() to signal the
-		 * lock.*/
+		 * lock.
+		 */
 		olck->ols_ast_wait = 1;
 		rc = CLO_WAIT;
 	}
@@ -1306,7 +1316,7 @@ static void osc_lock_cancel(const struct lu_env *env,
 	LASSERT(cl_lock_is_mutexed(lock));
 	LINVRNT(osc_lock_invariant(olck));
 
-	if (dlmlock != NULL) {
+	if (dlmlock) {
 		int do_cancel;
 
 		discard = !!(dlmlock->l_flags & LDLM_FL_DISCARD_DATA);
@@ -1318,7 +1328,8 @@ static void osc_lock_cancel(const struct lu_env *env,
 		/* Now that we're the only user of dlm read/write reference,
 		 * mostly the ->l_readers + ->l_writers should be zero.
 		 * However, there is a corner case.
-		 * See bug 18829 for details.*/
+		 * See bug 18829 for details.
+		 */
 		do_cancel = (dlmlock->l_readers == 0 &&
 			     dlmlock->l_writers == 0);
 		dlmlock->l_flags |= LDLM_FL_CBPENDING;
@@ -1382,7 +1393,7 @@ static void osc_lock_state(const struct lu_env *env,
 	if (state == CLS_HELD && slice->cls_lock->cll_state != CLS_HELD) {
 		struct osc_io *oio = osc_env_io(env);
 
-		LASSERT(lock->ols_owner == NULL);
+		LASSERT(!lock->ols_owner);
 		lock->ols_owner = oio;
 	} else if (state != CLS_HELD)
 		lock->ols_owner = NULL;
@@ -1517,7 +1528,8 @@ static void osc_lock_lockless_state(const struct lu_env *env,
 		lock->ols_owner = oio;
 
 		/* set the io to be lockless if this lock is for io's
-		 * host object */
+		 * host object
+		 */
 		if (cl_object_same(oio->oi_cl.cis_obj, slice->cls_obj))
 			oio->oi_lockless = 1;
 	}
@@ -1556,7 +1568,7 @@ int osc_lock_init(const struct lu_env *env,
 	int result;
 
 	clk = kmem_cache_alloc(osc_lock_kmem, GFP_NOFS | __GFP_ZERO);
-	if (clk != NULL) {
+	if (clk) {
 		__u32 enqflags = lock->cll_descr.cld_enq_flags;
 
 		osc_lock_build_einfo(env, lock, clk, &clk->ols_einfo);
@@ -1599,7 +1611,7 @@ int osc_dlm_lock_pageref(struct ldlm_lock *dlm)
 	 * doesn't matter because in the worst case we don't cancel a lock
 	 * which we actually can, that's no harm.
 	 */
-	if (olock != NULL &&
+	if (olock &&
 	    atomic_add_return(_PAGEREF_MAGIC,
 				  &olock->ols_pageref) != _PAGEREF_MAGIC) {
 		atomic_sub(_PAGEREF_MAGIC, &olock->ols_pageref);
diff --git a/drivers/staging/lustre/lustre/osc/osc_object.c b/drivers/staging/lustre/lustre/osc/osc_object.c
index fdd6219..60d8230 100644
--- a/drivers/staging/lustre/lustre/osc/osc_object.c
+++ b/drivers/staging/lustre/lustre/osc/osc_object.c
@@ -113,7 +113,7 @@ static void osc_object_free(const struct lu_env *env, struct lu_object *obj)
 	LASSERT(list_empty(&osc->oo_write_item));
 	LASSERT(list_empty(&osc->oo_read_item));
 
-	LASSERT(osc->oo_root.rb_node == NULL);
+	LASSERT(!osc->oo_root.rb_node);
 	LASSERT(list_empty(&osc->oo_hp_exts));
 	LASSERT(list_empty(&osc->oo_urgent_exts));
 	LASSERT(list_empty(&osc->oo_rpc_exts));
@@ -256,7 +256,7 @@ struct lu_object *osc_object_alloc(const struct lu_env *env,
 	struct lu_object *obj;
 
 	osc = kmem_cache_alloc(osc_object_kmem, GFP_NOFS | __GFP_ZERO);
-	if (osc != NULL) {
+	if (osc) {
 		obj = osc2lu(osc);
 		lu_object_init(obj, NULL, dev);
 		osc->oo_cl.co_ops = &osc_ops;
diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c
index 8943f0a..d11582a 100644
--- a/drivers/staging/lustre/lustre/osc/osc_page.c
+++ b/drivers/staging/lustre/lustre/osc/osc_page.c
@@ -51,111 +51,12 @@ static int osc_lru_reserve(const struct lu_env *env, struct osc_object *obj,
  *  @{
  */
 
-/*
- * Comment out osc_page_protected because it may sleep inside the
- * the client_obd_list_lock.
- * client_obd_list_lock -> osc_ap_completion -> osc_completion ->
- *   -> osc_page_protected -> osc_page_is_dlocked -> osc_match_base
- *   -> ldlm_lock_match -> sptlrpc_import_check_ctx -> sleep.
- */
-#if 0
-static int osc_page_is_dlocked(const struct lu_env *env,
-			       const struct osc_page *opg,
-			       enum cl_lock_mode mode, int pending, int unref)
-{
-	struct cl_page	 *page;
-	struct osc_object      *obj;
-	struct osc_thread_info *info;
-	struct ldlm_res_id     *resname;
-	struct lustre_handle   *lockh;
-	ldlm_policy_data_t     *policy;
-	ldlm_mode_t	     dlmmode;
-	__u64                   flags;
-
-	might_sleep();
-
-	info = osc_env_info(env);
-	resname = &info->oti_resname;
-	policy = &info->oti_policy;
-	lockh = &info->oti_handle;
-	page = opg->ops_cl.cpl_page;
-	obj = cl2osc(opg->ops_cl.cpl_obj);
-
-	flags = LDLM_FL_TEST_LOCK | LDLM_FL_BLOCK_GRANTED;
-	if (pending)
-		flags |= LDLM_FL_CBPENDING;
-
-	dlmmode = osc_cl_lock2ldlm(mode) | LCK_PW;
-	osc_lock_build_res(env, obj, resname);
-	osc_index2policy(policy, page->cp_obj, page->cp_index, page->cp_index);
-	return osc_match_base(osc_export(obj), resname, LDLM_EXTENT, policy,
-			      dlmmode, &flags, NULL, lockh, unref);
-}
-
-/**
- * Checks an invariant that a page in the cache is covered by a lock, as
- * needed.
- */
-static int osc_page_protected(const struct lu_env *env,
-			      const struct osc_page *opg,
-			      enum cl_lock_mode mode, int unref)
-{
-	struct cl_object_header *hdr;
-	struct cl_lock	  *scan;
-	struct cl_page	  *page;
-	struct cl_lock_descr    *descr;
-	int result;
-
-	LINVRNT(!opg->ops_temp);
-
-	page = opg->ops_cl.cpl_page;
-	if (page->cp_owner != NULL &&
-	    cl_io_top(page->cp_owner)->ci_lockreq == CILR_NEVER)
-		/*
-		 * If IO is done without locks (liblustre, or lloop), lock is
-		 * not required.
-		 */
-		result = 1;
-	else
-		/* otherwise check for a DLM lock */
-	result = osc_page_is_dlocked(env, opg, mode, 1, unref);
-	if (result == 0) {
-		/* maybe this page is a part of a lockless io? */
-		hdr = cl_object_header(opg->ops_cl.cpl_obj);
-		descr = &osc_env_info(env)->oti_descr;
-		descr->cld_mode = mode;
-		descr->cld_start = page->cp_index;
-		descr->cld_end   = page->cp_index;
-		spin_lock(&hdr->coh_lock_guard);
-		list_for_each_entry(scan, &hdr->coh_locks, cll_linkage) {
-			/*
-			 * Lock-less sub-lock has to be either in HELD state
-			 * (when io is actively going on), or in CACHED state,
-			 * when top-lock is being unlocked:
-			 * cl_io_unlock()->cl_unuse()->...->lov_lock_unuse().
-			 */
-			if ((scan->cll_state == CLS_HELD ||
-			     scan->cll_state == CLS_CACHED) &&
-			    cl_lock_ext_match(&scan->cll_descr, descr)) {
-				struct osc_lock *olck;
-
-				olck = osc_lock_at(scan);
-				result = osc_lock_is_lockless(olck);
-				break;
-			}
-		}
-		spin_unlock(&hdr->coh_lock_guard);
-	}
-	return result;
-}
-#else
 static int osc_page_protected(const struct lu_env *env,
 			      const struct osc_page *opg,
 			      enum cl_lock_mode mode, int unref)
 {
 	return 1;
 }
-#endif
 
 /*****************************************************************************
  *
@@ -168,7 +69,7 @@ static void osc_page_fini(const struct lu_env *env,
 	struct osc_page *opg = cl2osc_page(slice);
 
 	CDEBUG(D_TRACE, "%p\n", opg);
-	LASSERT(opg->ops_lock == NULL);
+	LASSERT(!opg->ops_lock);
 }
 
 static void osc_page_transfer_get(struct osc_page *opg, const char *label)
@@ -204,7 +105,8 @@ static void osc_page_transfer_add(const struct lu_env *env,
 	struct osc_object *obj = cl2osc(opg->ops_cl.cpl_obj);
 
 	/* ops_lru and ops_inflight share the same field, so take it from LRU
-	 * first and then use it as inflight. */
+	 * first and then use it as inflight.
+	 */
 	osc_lru_del(osc_cli(obj), opg, false);
 
 	spin_lock(&obj->oo_seatbelt);
@@ -232,9 +134,10 @@ static int osc_page_cache_add(const struct lu_env *env,
 
 	/* for sync write, kernel will wait for this page to be flushed before
 	 * osc_io_end() is called, so release it earlier.
-	 * for mkwrite(), it's known there is no further pages. */
+	 * for mkwrite(), it's known there is no further pages.
+	 */
 	if (cl_io_is_sync_write(io) || cl_io_is_mkwrite(io)) {
-		if (oio->oi_active != NULL) {
+		if (oio->oi_active) {
 			osc_extent_release(env, oio->oi_active);
 			oio->oi_active = NULL;
 		}
@@ -258,7 +161,7 @@ static int osc_page_addref_lock(const struct lu_env *env,
 	struct osc_lock *olock;
 	int rc;
 
-	LASSERT(opg->ops_lock == NULL);
+	LASSERT(!opg->ops_lock);
 
 	olock = osc_lock_at(lock);
 	if (atomic_inc_return(&olock->ols_pageref) <= 0) {
@@ -278,7 +181,7 @@ static void osc_page_putref_lock(const struct lu_env *env,
 	struct cl_lock *lock = opg->ops_lock;
 	struct osc_lock *olock;
 
-	LASSERT(lock != NULL);
+	LASSERT(lock);
 	olock = osc_lock_at(lock);
 
 	atomic_dec(&olock->ols_pageref);
@@ -296,7 +199,7 @@ static int osc_page_is_under_lock(const struct lu_env *env,
 
 	lock = cl_lock_at_page(env, slice->cpl_obj, slice->cpl_page,
 			       NULL, 1, 0);
-	if (lock != NULL) {
+	if (lock) {
 		if (osc_page_addref_lock(env, cl2osc_page(slice), lock) == 0)
 			result = -EBUSY;
 		cl_lock_put(env, lock);
@@ -424,7 +327,7 @@ static void osc_page_delete(const struct lu_env *env,
 	}
 
 	spin_lock(&obj->oo_seatbelt);
-	if (opg->ops_submitter != NULL) {
+	if (opg->ops_submitter) {
 		LASSERT(!list_empty(&opg->ops_inflight));
 		list_del_init(&opg->ops_inflight);
 		opg->ops_submitter = NULL;
@@ -458,7 +361,8 @@ static int osc_page_cancel(const struct lu_env *env,
 	LINVRNT(osc_page_protected(env, opg, CLM_READ, 0));
 
 	/* Check if the transferring against this page
-	 * is completed, or not even queued. */
+	 * is completed, or not even queued.
+	 */
 	if (opg->ops_transfer_pinned)
 		/* FIXME: may not be interrupted.. */
 		rc = osc_cancel_async_page(env, opg);
@@ -522,7 +426,8 @@ int osc_page_init(const struct lu_env *env, struct cl_object *obj,
 	 * creates temporary pages outside of a lock.
 	 */
 	/* ops_inflight and ops_lru are the same field, but it doesn't
-	 * hurt to initialize it twice :-) */
+	 * hurt to initialize it twice :-)
+	 */
 	INIT_LIST_HEAD(&opg->ops_inflight);
 	INIT_LIST_HEAD(&opg->ops_lru);
 
@@ -581,7 +486,8 @@ void osc_page_submit(const struct lu_env *env, struct osc_page *opg,
 static DECLARE_WAIT_QUEUE_HEAD(osc_lru_waitq);
 static atomic_t osc_lru_waiters = ATOMIC_INIT(0);
 /* LRU pages are freed in batch mode. OSC should at least free this
- * number of pages to avoid running out of LRU budget, and.. */
+ * number of pages to avoid running out of LRU budget, and..
+ */
 static const int lru_shrink_min = 2 << (20 - PAGE_CACHE_SHIFT);  /* 2M */
 /* free this number at most otherwise it will take too long time to finish. */
 static const int lru_shrink_max = 32 << (20 - PAGE_CACHE_SHIFT); /* 32M */
@@ -590,7 +496,8 @@ static const int lru_shrink_max = 32 << (20 - PAGE_CACHE_SHIFT); /* 32M */
  * we should free slots aggressively. In this way, slots are freed in a steady
  * step to maintain fairness among OSCs.
  *
- * Return how many LRU pages should be freed. */
+ * Return how many LRU pages should be freed.
+ */
 static int osc_cache_too_much(struct client_obd *cli)
 {
 	struct cl_client_cache *cache = cli->cl_cache;
@@ -602,7 +509,8 @@ static int osc_cache_too_much(struct client_obd *cli)
 		return min(pages, lru_shrink_max);
 
 	/* if it's going to run out LRU slots, we should free some, but not
-	 * too much to maintain fairness among OSCs. */
+	 * too much to maintain fairness among OSCs.
+	 */
 	if (atomic_read(cli->cl_lru_left) < cache->ccc_lru_max >> 4) {
 		unsigned long tmp;
 
@@ -630,7 +538,8 @@ static int discard_pagevec(const struct lu_env *env, struct cl_io *io,
 			/* free LRU page only if nobody is using it.
 			 * This check is necessary to avoid freeing the pages
 			 * having already been removed from LRU and pinned
-			 * for IO. */
+			 * for IO.
+			 */
 			if (!cl_page_in_use(page)) {
 				cl_page_unmap(env, io, page);
 				cl_page_discard(env, io, page);
@@ -688,14 +597,14 @@ int osc_lru_shrink(struct client_obd *cli, int target)
 			continue;
 		}
 
-		LASSERT(page->cp_obj != NULL);
+		LASSERT(page->cp_obj);
 		if (clobj != page->cp_obj) {
 			struct cl_object *tmp = page->cp_obj;
 
 			cl_object_get(tmp);
 			client_obd_list_unlock(&cli->cl_lru_list_lock);
 
-			if (clobj != NULL) {
+			if (clobj) {
 				count -= discard_pagevec(env, io, pvec, index);
 				index = 0;
 
@@ -720,11 +629,13 @@ int osc_lru_shrink(struct client_obd *cli, int target)
 
 		/* move this page to the end of list as it will be discarded
 		 * soon. The page will be finally removed from LRU list in
-		 * osc_page_delete().  */
+		 * osc_page_delete().
+		 */
 		list_move_tail(&opg->ops_lru, &cli->cl_lru_list);
 
 		/* it's okay to grab a refcount here w/o holding lock because
-		 * it has to grab cl_lru_list_lock to delete the page. */
+		 * it has to grab cl_lru_list_lock to delete the page.
+		 */
 		cl_page_get(page);
 		pvec[index++] = page;
 		if (++count >= target)
@@ -740,7 +651,7 @@ int osc_lru_shrink(struct client_obd *cli, int target)
 	}
 	client_obd_list_unlock(&cli->cl_lru_list_lock);
 
-	if (clobj != NULL) {
+	if (clobj) {
 		count -= discard_pagevec(env, io, pvec, index);
 
 		cl_io_fini(env, io);
@@ -775,7 +686,8 @@ static void osc_lru_add(struct client_obd *cli, struct osc_page *opg)
 }
 
 /* delete page from LRUlist. The page can be deleted from LRUlist for two
- * reasons: redirtied or deleted from page cache. */
+ * reasons: redirtied or deleted from page cache.
+ */
 static void osc_lru_del(struct client_obd *cli, struct osc_page *opg, bool del)
 {
 	if (opg->ops_in_lru) {
@@ -797,7 +709,8 @@ static void osc_lru_del(struct client_obd *cli, struct osc_page *opg, bool del)
 			 * this osc occupies too many LRU pages and kernel is
 			 * stealing one of them.
 			 * cl_lru_shrinkers is to avoid recursive call in case
-			 * we're already in the context of osc_lru_shrink(). */
+			 * we're already in the context of osc_lru_shrink().
+			 */
 			if (atomic_read(&cli->cl_lru_shrinkers) == 0 &&
 			    !memory_pressure_get())
 				osc_lru_shrink(cli, osc_cache_too_much(cli));
@@ -819,7 +732,7 @@ static int osc_lru_reclaim(struct client_obd *cli)
 	int max_scans;
 	int rc;
 
-	LASSERT(cache != NULL);
+	LASSERT(cache);
 
 	rc = osc_lru_shrink(cli, lru_shrink_min);
 	if (rc != 0) {
@@ -834,7 +747,8 @@ static int osc_lru_reclaim(struct client_obd *cli)
 		atomic_read(&cli->cl_lru_busy));
 
 	/* Reclaim LRU slots from other client_obd as it can't free enough
-	 * from its own. This should rarely happen. */
+	 * from its own. This should rarely happen.
+	 */
 	spin_lock(&cache->ccc_lru_lock);
 	LASSERT(!list_empty(&cache->ccc_lru));
 
@@ -875,7 +789,7 @@ static int osc_lru_reserve(const struct lu_env *env, struct osc_object *obj,
 	struct client_obd *cli = osc_cli(obj);
 	int rc = 0;
 
-	if (cli->cl_cache == NULL) /* shall not be in LRU */
+	if (!cli->cl_cache) /* shall not be in LRU */
 		return 0;
 
 	LASSERT(atomic_read(cli->cl_lru_left) >= 0);
@@ -892,7 +806,8 @@ static int osc_lru_reserve(const struct lu_env *env, struct osc_object *obj,
 		cond_resched();
 
 		/* slowest case, all of caching pages are busy, notifying
-		 * other OSCs that we're lack of LRU slots. */
+		 * other OSCs that we're lack of LRU slots.
+		 */
 		atomic_inc(&osc_lru_waiters);
 
 		gen = atomic_read(&cli->cl_lru_in_list);
diff --git a/drivers/staging/lustre/lustre/osc/osc_quota.c b/drivers/staging/lustre/lustre/osc/osc_quota.c
index e70e796..208f72b 100644
--- a/drivers/staging/lustre/lustre/osc/osc_quota.c
+++ b/drivers/staging/lustre/lustre/osc/osc_quota.c
@@ -13,11 +13,6 @@
  * General Public License version 2 for more details (a copy is included
  * in the LICENSE file that accompanied this code).
  *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
  * GPL HEADER END
  */
 /*
@@ -36,7 +31,7 @@ static inline struct osc_quota_info *osc_oqi_alloc(u32 id)
 	struct osc_quota_info *oqi;
 
 	oqi = kmem_cache_alloc(osc_quota_kmem, GFP_NOFS | __GFP_ZERO);
-	if (oqi != NULL)
+	if (oqi)
 		oqi->oqi_id = id;
 
 	return oqi;
@@ -52,10 +47,12 @@ int osc_quota_chkdq(struct client_obd *cli, const unsigned int qid[])
 		oqi = cfs_hash_lookup(cli->cl_quota_hash[type], &qid[type]);
 		if (oqi) {
 			/* do not try to access oqi here, it could have been
-			 * freed by osc_quota_setdq() */
+			 * freed by osc_quota_setdq()
+			 */
 
 			/* the slot is busy, the user is about to run out of
-			 * quota space on this OST */
+			 * quota space on this OST
+			 */
 			CDEBUG(D_QUOTA, "chkdq found noquota for %s %d\n",
 			       type == USRQUOTA ? "user" : "grout", qid[type]);
 			return NO_QUOTA;
@@ -89,12 +86,13 @@ int osc_quota_setdq(struct client_obd *cli, const unsigned int qid[],
 		oqi = cfs_hash_lookup(cli->cl_quota_hash[type], &qid[type]);
 		if ((flags & FL_QUOTA_FLAG(type)) != 0) {
 			/* This ID is getting close to its quota limit, let's
-			 * switch to sync I/O */
-			if (oqi != NULL)
+			 * switch to sync I/O
+			 */
+			if (oqi)
 				continue;
 
 			oqi = osc_oqi_alloc(qid[type]);
-			if (oqi == NULL) {
+			if (!oqi) {
 				rc = -ENOMEM;
 				break;
 			}
@@ -113,8 +111,9 @@ int osc_quota_setdq(struct client_obd *cli, const unsigned int qid[],
 			       qid[type], rc);
 		} else {
 			/* This ID is now off the hook, let's remove it from
-			 * the hash table */
-			if (oqi == NULL)
+			 * the hash table
+			 */
+			if (!oqi)
 				continue;
 
 			oqi = cfs_hash_del_key(cli->cl_quota_hash[type],
@@ -147,7 +146,7 @@ oqi_keycmp(const void *key, struct hlist_node *hnode)
 	struct osc_quota_info *oqi;
 	u32 uid;
 
-	LASSERT(key != NULL);
+	LASSERT(key);
 	uid = *((u32 *)key);
 	oqi = hlist_entry(hnode, struct osc_quota_info, oqi_hash);
 
@@ -218,7 +217,7 @@ int osc_quota_setup(struct obd_device *obd)
 							   CFS_HASH_MAX_THETA,
 							   &quota_hash_ops,
 							   CFS_HASH_DEFAULT);
-		if (cli->cl_quota_hash[type] == NULL)
+		if (!cli->cl_quota_hash[type])
 			break;
 	}
 
@@ -252,7 +251,7 @@ int osc_quotactl(struct obd_device *unused, struct obd_export *exp,
 	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
 					&RQF_OST_QUOTACTL, LUSTRE_OST_VERSION,
 					OST_QUOTACTL);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
@@ -294,7 +293,7 @@ int osc_quotacheck(struct obd_device *unused, struct obd_export *exp,
 	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
 					&RQF_OST_QUOTACHECK, LUSTRE_OST_VERSION,
 					OST_QUOTACHECK);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
@@ -302,8 +301,8 @@ int osc_quotacheck(struct obd_device *unused, struct obd_export *exp,
 
 	ptlrpc_request_set_replen(req);
 
-	/* the next poll will find -ENODATA, that means quotacheck is
-	 * going on */
+	/* the next poll will find -ENODATA, that means quotacheck is going on
+	 */
 	cli->cl_qchk_stat = -ENODATA;
 	rc = ptlrpc_queue_wait(req);
 	if (rc)
diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c
index 3ae00fc..10f262f 100644
--- a/drivers/staging/lustre/lustre/osc/osc_request.c
+++ b/drivers/staging/lustre/lustre/osc/osc_request.c
@@ -104,7 +104,6 @@ struct osc_enqueue_args {
 static void osc_release_ppga(struct brw_page **ppga, u32 count);
 static int brw_interpret(const struct lu_env *env,
 			 struct ptlrpc_request *req, void *data, int rc);
-static int osc_cleanup(struct obd_device *obd);
 
 /* Pack OSC object metadata for disk storage (LE byte order). */
 static int osc_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
@@ -113,18 +112,18 @@ static int osc_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
 	int lmm_size;
 
 	lmm_size = sizeof(**lmmp);
-	if (lmmp == NULL)
+	if (!lmmp)
 		return lmm_size;
 
-	if (*lmmp != NULL && lsm == NULL) {
+	if (*lmmp && !lsm) {
 		kfree(*lmmp);
 		*lmmp = NULL;
 		return 0;
-	} else if (unlikely(lsm != NULL && ostid_id(&lsm->lsm_oi) == 0)) {
+	} else if (unlikely(lsm && ostid_id(&lsm->lsm_oi) == 0)) {
 		return -EBADF;
 	}
 
-	if (*lmmp == NULL) {
+	if (!*lmmp) {
 		*lmmp = kzalloc(lmm_size, GFP_NOFS);
 		if (!*lmmp)
 			return -ENOMEM;
@@ -143,7 +142,7 @@ static int osc_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
 	int lsm_size;
 	struct obd_import *imp = class_exp2cliimp(exp);
 
-	if (lmm != NULL) {
+	if (lmm) {
 		if (lmm_bytes < sizeof(*lmm)) {
 			CERROR("%s: lov_mds_md too small: %d, need %d\n",
 			       exp->exp_obd->obd_name, lmm_bytes,
@@ -160,23 +159,23 @@ static int osc_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
 	}
 
 	lsm_size = lov_stripe_md_size(1);
-	if (lsmp == NULL)
+	if (!lsmp)
 		return lsm_size;
 
-	if (*lsmp != NULL && lmm == NULL) {
+	if (*lsmp && !lmm) {
 		kfree((*lsmp)->lsm_oinfo[0]);
 		kfree(*lsmp);
 		*lsmp = NULL;
 		return 0;
 	}
 
-	if (*lsmp == NULL) {
+	if (!*lsmp) {
 		*lsmp = kzalloc(lsm_size, GFP_NOFS);
-		if (unlikely(*lsmp == NULL))
+		if (unlikely(!*lsmp))
 			return -ENOMEM;
 		(*lsmp)->lsm_oinfo[0] = kzalloc(sizeof(struct lov_oinfo),
 						GFP_NOFS);
-		if (unlikely((*lsmp)->lsm_oinfo[0] == NULL)) {
+		if (unlikely(!(*lsmp)->lsm_oinfo[0])) {
 			kfree(*lsmp);
 			return -ENOMEM;
 		}
@@ -185,11 +184,11 @@ static int osc_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
 		return -EBADF;
 	}
 
-	if (lmm != NULL)
+	if (lmm)
 		/* XXX zero *lsmp? */
 		ostid_le_to_cpu(&lmm->lmm_oi, &(*lsmp)->lsm_oi);
 
-	if (imp != NULL &&
+	if (imp &&
 	    (imp->imp_connect_data.ocd_connect_flags & OBD_CONNECT_MAXBYTES))
 		(*lsmp)->lsm_maxbytes = imp->imp_connect_data.ocd_maxbytes;
 	else
@@ -246,7 +245,7 @@ static int osc_getattr_async(struct obd_export *exp, struct obd_info *oinfo,
 	int rc;
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_OST_GETATTR);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_GETATTR);
@@ -276,7 +275,7 @@ static int osc_getattr(const struct lu_env *env, struct obd_export *exp,
 	int rc;
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_OST_GETATTR);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_GETATTR);
@@ -294,7 +293,7 @@ static int osc_getattr(const struct lu_env *env, struct obd_export *exp,
 		goto out;
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
-	if (body == NULL) {
+	if (!body) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -321,7 +320,7 @@ static int osc_setattr(const struct lu_env *env, struct obd_export *exp,
 	LASSERT(oinfo->oi_oa->o_valid & OBD_MD_FLGROUP);
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_OST_SETATTR);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_SETATTR);
@@ -339,7 +338,7 @@ static int osc_setattr(const struct lu_env *env, struct obd_export *exp,
 		goto out;
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
-	if (body == NULL) {
+	if (!body) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -362,7 +361,7 @@ static int osc_setattr_interpret(const struct lu_env *env,
 		goto out;
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
-	if (body == NULL) {
+	if (!body) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -384,7 +383,7 @@ int osc_setattr_async_base(struct obd_export *exp, struct obd_info *oinfo,
 	int rc;
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_OST_SETATTR);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_SETATTR);
@@ -451,7 +450,7 @@ static int osc_real_create(struct obd_export *exp, struct obdo *oa,
 	}
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_OST_CREATE);
-	if (req == NULL) {
+	if (!req) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -482,7 +481,7 @@ static int osc_real_create(struct obd_export *exp, struct obdo *oa,
 		goto out_req;
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
-	if (body == NULL) {
+	if (!body) {
 		rc = -EPROTO;
 		goto out_req;
 	}
@@ -500,7 +499,7 @@ static int osc_real_create(struct obd_export *exp, struct obdo *oa,
 	lsm->lsm_oi = oa->o_oi;
 	*ea = lsm;
 
-	if (oti != NULL) {
+	if (oti) {
 		oti->oti_transno = lustre_msg_get_transno(req->rq_repmsg);
 
 		if (oa->o_valid & OBD_MD_FLCOOKIE) {
@@ -530,7 +529,7 @@ int osc_punch_base(struct obd_export *exp, struct obd_info *oinfo,
 	int rc;
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_OST_PUNCH);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_PUNCH);
@@ -573,7 +572,7 @@ static int osc_sync_interpret(const struct lu_env *env,
 		goto out;
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
-	if (body == NULL) {
+	if (!body) {
 		CERROR("can't unpack ost_body\n");
 		rc = -EPROTO;
 		goto out;
@@ -595,7 +594,7 @@ int osc_sync_base(struct obd_export *exp, struct obd_info *oinfo,
 	int rc;
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_OST_SYNC);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_SYNC);
@@ -629,10 +628,11 @@ int osc_sync_base(struct obd_export *exp, struct obd_info *oinfo,
 
 /* Find and cancel locally locks matched by @mode in the resource found by
  * @objid. Found locks are added into @cancel list. Returns the amount of
- * locks added to @cancels list. */
+ * locks added to @cancels list.
+ */
 static int osc_resource_get_unused(struct obd_export *exp, struct obdo *oa,
 				   struct list_head *cancels,
-				   ldlm_mode_t mode, __u64 lock_flags)
+				   enum ldlm_mode mode, __u64 lock_flags)
 {
 	struct ldlm_namespace *ns = exp->exp_obd->obd_namespace;
 	struct ldlm_res_id res_id;
@@ -644,13 +644,14 @@ static int osc_resource_get_unused(struct obd_export *exp, struct obdo *oa,
 	 *
 	 * This distinguishes from a case when ELC is not supported originally,
 	 * when we still want to cancel locks in advance and just cancel them
-	 * locally, without sending any RPC. */
+	 * locally, without sending any RPC.
+	 */
 	if (exp_connect_cancelset(exp) && !ns_connect_cancelset(ns))
 		return 0;
 
 	ostid_build_res_name(&oa->o_oi, &res_id);
 	res = ldlm_resource_get(ns, NULL, &res_id, 0, 0);
-	if (res == NULL)
+	if (!res)
 		return 0;
 
 	LDLM_RESOURCE_ADDREF(res);
@@ -723,7 +724,8 @@ static int osc_create(const struct lu_env *env, struct obd_export *exp,
  * If the client dies, or the OST is down when the object should be destroyed,
  * the records are not cancelled, and when the OST reconnects to the MDS next,
  * it will retrieve the llog unlink logs and then sends the log cancellation
- * cookies to the MDS after committing destroy transactions. */
+ * cookies to the MDS after committing destroy transactions.
+ */
 static int osc_destroy(const struct lu_env *env, struct obd_export *exp,
 		       struct obdo *oa, struct lov_stripe_md *ea,
 		       struct obd_trans_info *oti, struct obd_export *md_export)
@@ -743,7 +745,7 @@ static int osc_destroy(const struct lu_env *env, struct obd_export *exp,
 					LDLM_FL_DISCARD_DATA);
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_OST_DESTROY);
-	if (req == NULL) {
+	if (!req) {
 		ldlm_lock_list_put(&cancels, l_bl_ast, count);
 		return -ENOMEM;
 	}
@@ -758,7 +760,7 @@ static int osc_destroy(const struct lu_env *env, struct obd_export *exp,
 	req->rq_request_portal = OST_IO_PORTAL; /* bug 7198 */
 	ptlrpc_at_set_req_timeout(req);
 
-	if (oti != NULL && oa->o_valid & OBD_MD_FLCOOKIE)
+	if (oti && oa->o_valid & OBD_MD_FLCOOKIE)
 		oa->o_lcookie = *oti->oti_logcookies;
 	body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
 	LASSERT(body);
@@ -769,7 +771,8 @@ static int osc_destroy(const struct lu_env *env, struct obd_export *exp,
 	/* If osc_destroy is for destroying the unlink orphan,
 	 * sent from MDT to OST, which should not be blocked here,
 	 * because the process might be triggered by ptlrpcd, and
-	 * it is not good to block ptlrpcd thread (b=16006)*/
+	 * it is not good to block ptlrpcd thread (b=16006
+	 **/
 	if (!(oa->o_flags & OBD_FL_DELORPHAN)) {
 		req->rq_interpret_reply = osc_destroy_interpret;
 		if (!osc_can_send_destroy(cli)) {
@@ -810,7 +813,8 @@ static void osc_announce_cached(struct client_obd *cli, struct obdo *oa,
 			    (long)(obd_max_dirty_pages + 1))) {
 		/* The atomic_read() allowing the atomic_inc() are
 		 * not covered by a lock thus they may safely race and trip
-		 * this CERROR() unless we add in a small fudge factor (+1). */
+		 * this CERROR() unless we add in a small fudge factor (+1).
+		 */
 		CERROR("dirty %d - %d > system dirty_max %d\n",
 		       atomic_read(&obd_dirty_pages),
 		       atomic_read(&obd_dirty_transit_pages),
@@ -839,7 +843,7 @@ void osc_update_next_shrink(struct client_obd *cli)
 {
 	cli->cl_next_shrink_grant =
 		cfs_time_shift(cli->cl_grant_shrink_interval);
-	CDEBUG(D_CACHE, "next time %ld to shrink grant \n",
+	CDEBUG(D_CACHE, "next time %ld to shrink grant\n",
 	       cli->cl_next_shrink_grant);
 }
 
@@ -900,7 +904,8 @@ static void osc_shrink_grant_local(struct client_obd *cli, struct obdo *oa)
 /* Shrink the current grant, either from some large amount to enough for a
  * full set of in-flight RPCs, or if we have already shrunk to that limit
  * then to enough for a single RPC.  This avoids keeping more grant than
- * needed, and avoids shrinking the grant piecemeal. */
+ * needed, and avoids shrinking the grant piecemeal.
+ */
 static int osc_shrink_grant(struct client_obd *cli)
 {
 	__u64 target_bytes = (cli->cl_max_rpcs_in_flight + 1) *
@@ -922,7 +927,8 @@ int osc_shrink_grant_to_target(struct client_obd *cli, __u64 target_bytes)
 	client_obd_list_lock(&cli->cl_loi_list_lock);
 	/* Don't shrink if we are already above or below the desired limit
 	 * We don't want to shrink below a single RPC, as that will negatively
-	 * impact block allocation and long-term performance. */
+	 * impact block allocation and long-term performance.
+	 */
 	if (target_bytes < cli->cl_max_pages_per_rpc << PAGE_CACHE_SHIFT)
 		target_bytes = cli->cl_max_pages_per_rpc << PAGE_CACHE_SHIFT;
 
@@ -970,7 +976,8 @@ static int osc_should_shrink_grant(struct client_obd *client)
 	if (cfs_time_aftereq(time, next_shrink - 5 * CFS_TICK)) {
 		/* Get the current RPC size directly, instead of going via:
 		 * cli_brw_size(obd->u.cli.cl_import->imp_obd->obd_self_export)
-		 * Keep comment here so that it can be found by searching. */
+		 * Keep comment here so that it can be found by searching.
+		 */
 		int brw_size = client->cl_max_pages_per_rpc << PAGE_CACHE_SHIFT;
 
 		if (client->cl_import->imp_state == LUSTRE_IMP_FULL &&
@@ -1007,7 +1014,7 @@ static int osc_add_shrink_grant(struct client_obd *client)
 			client->cl_import->imp_obd->obd_name, rc);
 		return rc;
 	}
-	CDEBUG(D_CACHE, "add grant client %s \n",
+	CDEBUG(D_CACHE, "add grant client %s\n",
 	       client->cl_import->imp_obd->obd_name);
 	osc_update_next_shrink(client);
 	return 0;
@@ -1040,7 +1047,8 @@ static void osc_init_grant(struct client_obd *cli, struct obd_connect_data *ocd)
 		      cli->cl_import->imp_obd->obd_name, cli->cl_avail_grant,
 		      ocd->ocd_grant, cli->cl_dirty);
 		/* workaround for servers which do not have the patch from
-		 * LU-2679 */
+		 * LU-2679
+		 */
 		cli->cl_avail_grant = ocd->ocd_grant;
 	}
 
@@ -1060,7 +1068,8 @@ static void osc_init_grant(struct client_obd *cli, struct obd_connect_data *ocd)
 /* We assume that the reason this OSC got a short read is because it read
  * beyond the end of a stripe file; i.e. lustre is reading a sparse file
  * via the LOV, and it _knows_ it's reading inside the file, it's just that
- * this stripe never got written at or beyond this stripe offset yet. */
+ * this stripe never got written at or beyond this stripe offset yet.
+ */
 static void handle_short_read(int nob_read, u32 page_count,
 			      struct brw_page **pga)
 {
@@ -1106,7 +1115,7 @@ static int check_write_rcs(struct ptlrpc_request *req,
 	remote_rcs = req_capsule_server_sized_get(&req->rq_pill, &RMF_RCS,
 						  sizeof(*remote_rcs) *
 						  niocount);
-	if (remote_rcs == NULL) {
+	if (!remote_rcs) {
 		CDEBUG(D_INFO, "Missing/short RC vector on BRW_WRITE reply\n");
 		return -EPROTO;
 	}
@@ -1139,7 +1148,8 @@ static inline int can_merge_pages(struct brw_page *p1, struct brw_page *p2)
 				  OBD_BRW_SYNC | OBD_BRW_ASYNC|OBD_BRW_NOQUOTA);
 
 		/* warn if we try to combine flags that we don't know to be
-		 * safe to combine */
+		 * safe to combine
+		 */
 		if (unlikely((p1->flag & mask) != (p2->flag & mask))) {
 			CWARN("Saw flags 0x%x and 0x%x in the same brw, please report this at http://bugs.whamcloud.com/\n",
 			      p1->flag, p2->flag);
@@ -1152,7 +1162,7 @@ static inline int can_merge_pages(struct brw_page *p1, struct brw_page *p2)
 
 static u32 osc_checksum_bulk(int nob, u32 pg_count,
 			     struct brw_page **pga, int opc,
-			     cksum_type_t cksum_type)
+			     enum cksum_type cksum_type)
 {
 	__u32 cksum;
 	int i = 0;
@@ -1174,7 +1184,8 @@ static u32 osc_checksum_bulk(int nob, u32 pg_count,
 		int count = pga[i]->count > nob ? nob : pga[i]->count;
 
 		/* corrupt the data before we compute the checksum, to
-		 * simulate an OST->client data error */
+		 * simulate an OST->client data error
+		 */
 		if (i == 0 && opc == OST_READ &&
 		    OBD_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_RECEIVE)) {
 			unsigned char *ptr = kmap(pga[i]->pg);
@@ -1205,7 +1216,8 @@ static u32 osc_checksum_bulk(int nob, u32 pg_count,
 		cfs_crypto_hash_final(hdesc, NULL, NULL);
 
 	/* For sending we only compute the wrong checksum instead
-	 * of corrupting the data so it is still correct on a redo */
+	 * of corrupting the data so it is still correct on a redo
+	 */
 	if (opc == OST_WRITE && OBD_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_SEND))
 		cksum++;
 
@@ -1244,7 +1256,7 @@ static int osc_brw_prep_request(int cmd, struct client_obd *cli,
 		opc = OST_READ;
 		req = ptlrpc_request_alloc(cli->cl_import, &RQF_OST_BRW_READ);
 	}
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	for (niocount = i = 1; i < page_count; i++) {
@@ -1266,7 +1278,8 @@ static int osc_brw_prep_request(int cmd, struct client_obd *cli,
 	req->rq_request_portal = OST_IO_PORTAL; /* bug 7198 */
 	ptlrpc_at_set_req_timeout(req);
 	/* ask ptlrpc not to resend on EINPROGRESS since BRWs have their own
-	 * retry logic */
+	 * retry logic
+	 */
 	req->rq_no_retry_einprogress = 1;
 
 	desc = ptlrpc_prep_bulk_imp(req, page_count,
@@ -1274,7 +1287,7 @@ static int osc_brw_prep_request(int cmd, struct client_obd *cli,
 		opc == OST_WRITE ? BULK_GET_SOURCE : BULK_PUT_SINK,
 		OST_BULK_PORTAL);
 
-	if (desc == NULL) {
+	if (!desc) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1283,7 +1296,7 @@ static int osc_brw_prep_request(int cmd, struct client_obd *cli,
 	body = req_capsule_client_get(pill, &RMF_OST_BODY);
 	ioobj = req_capsule_client_get(pill, &RMF_OBD_IOOBJ);
 	niobuf = req_capsule_client_get(pill, &RMF_NIOBUF_REMOTE);
-	LASSERT(body != NULL && ioobj != NULL && niobuf != NULL);
+	LASSERT(body && ioobj && niobuf);
 
 	lustre_set_wire_obdo(&req->rq_import->imp_connect_data, &body->oa, oa);
 
@@ -1293,7 +1306,8 @@ static int osc_brw_prep_request(int cmd, struct client_obd *cli,
 	 * that might be send for this request.  The actual number is decided
 	 * when the RPC is finally sent in ptlrpc_register_bulk(). It sends
 	 * "max - 1" for old client compatibility sending "0", and also so the
-	 * the actual maximum is a power-of-two number, not one less. LU-1431 */
+	 * the actual maximum is a power-of-two number, not one less. LU-1431
+	 */
 	ioobj_max_brw_set(ioobj, desc->bd_md_max_brw);
 	LASSERT(page_count > 0);
 	pg_prev = pga[0];
@@ -1355,8 +1369,9 @@ static int osc_brw_prep_request(int cmd, struct client_obd *cli,
 		if (cli->cl_checksum &&
 		    !sptlrpc_flavor_has_bulk(&req->rq_flvr)) {
 			/* store cl_cksum_type in a local variable since
-			 * it can be changed via lprocfs */
-			cksum_type_t cksum_type = cli->cl_cksum_type;
+			 * it can be changed via lprocfs
+			 */
+			enum cksum_type cksum_type = cli->cl_cksum_type;
 
 			if ((body->oa.o_valid & OBD_MD_FLFLAGS) == 0) {
 				oa->o_flags &= OBD_FL_LOCAL_MASK;
@@ -1375,7 +1390,8 @@ static int osc_brw_prep_request(int cmd, struct client_obd *cli,
 			oa->o_flags |= cksum_type_pack(cksum_type);
 		} else {
 			/* clear out the checksum flag, in case this is a
-			 * resend but cl_checksum is no longer set. b=11238 */
+			 * resend but cl_checksum is no longer set. b=11238
+			 */
 			oa->o_valid &= ~OBD_MD_FLCKSUM;
 		}
 		oa->o_cksum = body->oa.o_cksum;
@@ -1415,11 +1431,11 @@ static int osc_brw_prep_request(int cmd, struct client_obd *cli,
 static int check_write_checksum(struct obdo *oa, const lnet_process_id_t *peer,
 				__u32 client_cksum, __u32 server_cksum, int nob,
 				u32 page_count, struct brw_page **pga,
-				cksum_type_t client_cksum_type)
+				enum cksum_type client_cksum_type)
 {
 	__u32 new_cksum;
 	char *msg;
-	cksum_type_t cksum_type;
+	enum cksum_type cksum_type;
 
 	if (server_cksum == client_cksum) {
 		CDEBUG(D_PAGE, "checksum %x confirmed\n", client_cksum);
@@ -1472,9 +1488,9 @@ static int osc_brw_fini_request(struct ptlrpc_request *req, int rc)
 		return rc;
 	}
 
-	LASSERTF(req->rq_repmsg != NULL, "rc = %d\n", rc);
+	LASSERTF(req->rq_repmsg, "rc = %d\n", rc);
 	body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
-	if (body == NULL) {
+	if (!body) {
 		DEBUG_REQ(D_INFO, req, "Can't unpack body\n");
 		return -EPROTO;
 	}
@@ -1550,7 +1566,7 @@ static int osc_brw_fini_request(struct ptlrpc_request *req, int rc)
 		__u32 server_cksum = body->oa.o_cksum;
 		char *via = "";
 		char *router = "";
-		cksum_type_t cksum_type;
+		enum cksum_type cksum_type;
 
 		cksum_type = cksum_type_unpack(body->oa.o_valid&OBD_MD_FLFLAGS ?
 					       body->oa.o_flags : 0);
@@ -1627,7 +1643,7 @@ static int osc_brw_redo_request(struct ptlrpc_request *request,
 		return rc;
 
 	list_for_each_entry(oap, &aa->aa_oaps, oap_rpc_item) {
-		if (oap->oap_request != NULL) {
+		if (oap->oap_request) {
 			LASSERTF(request == oap->oap_request,
 				 "request %p != oap_request %p\n",
 				 request, oap->oap_request);
@@ -1638,12 +1654,14 @@ static int osc_brw_redo_request(struct ptlrpc_request *request,
 		}
 	}
 	/* New request takes over pga and oaps from old request.
-	 * Note that copying a list_head doesn't work, need to move it... */
+	 * Note that copying a list_head doesn't work, need to move it...
+	 */
 	aa->aa_resends++;
 	new_req->rq_interpret_reply = request->rq_interpret_reply;
 	new_req->rq_async_args = request->rq_async_args;
 	/* cap resend delay to the current request timeout, this is similar to
-	 * what ptlrpc does (see after_reply()) */
+	 * what ptlrpc does (see after_reply())
+	 */
 	if (aa->aa_resends > new_req->rq_timeout)
 		new_req->rq_sent = ktime_get_real_seconds() + new_req->rq_timeout;
 	else
@@ -1669,7 +1687,8 @@ static int osc_brw_redo_request(struct ptlrpc_request *request,
 	/* XXX: This code will run into problem if we're going to support
 	 * to add a series of BRW RPCs into a self-defined ptlrpc_request_set
 	 * and wait for all of them to be finished. We should inherit request
-	 * set from old request. */
+	 * set from old request.
+	 */
 	ptlrpcd_add_req(new_req);
 
 	DEBUG_REQ(D_INFO, new_req, "new request");
@@ -1709,7 +1728,7 @@ static void sort_brw_pages(struct brw_page **array, int num)
 
 static void osc_release_ppga(struct brw_page **ppga, u32 count)
 {
-	LASSERT(ppga != NULL);
+	LASSERT(ppga);
 	kfree(ppga);
 }
 
@@ -1725,7 +1744,8 @@ static int brw_interpret(const struct lu_env *env,
 	rc = osc_brw_fini_request(req, rc);
 	CDEBUG(D_INODE, "request %p aa %p rc %d\n", req, aa, rc);
 	/* When server return -EINPROGRESS, client should always retry
-	 * regardless of the number of times the bulk was resent already. */
+	 * regardless of the number of times the bulk was resent already.
+	 */
 	if (osc_recoverable_error(rc)) {
 		if (req->rq_import_generation !=
 		    req->rq_import->imp_generation) {
@@ -1748,7 +1768,7 @@ static int brw_interpret(const struct lu_env *env,
 	}
 
 	list_for_each_entry_safe(ext, tmp, &aa->aa_exts, oe_link) {
-		if (obj == NULL && rc == 0) {
+		if (!obj && rc == 0) {
 			obj = osc2cl(ext->oe_obj);
 			cl_object_get(obj);
 		}
@@ -1759,7 +1779,7 @@ static int brw_interpret(const struct lu_env *env,
 	LASSERT(list_empty(&aa->aa_exts));
 	LASSERT(list_empty(&aa->aa_oaps));
 
-	if (obj != NULL) {
+	if (obj) {
 		struct obdo *oa = aa->aa_oa;
 		struct cl_attr *attr  = &osc_env_info(env)->oti_attr;
 		unsigned long valid = 0;
@@ -1798,7 +1818,8 @@ static int brw_interpret(const struct lu_env *env,
 	client_obd_list_lock(&cli->cl_loi_list_lock);
 	/* We need to decrement before osc_ap_completion->osc_wake_cache_waiters
 	 * is called so we know whether to go to sync BRWs or wait for more
-	 * RPCs to complete */
+	 * RPCs to complete
+	 */
 	if (lustre_msg_get_opc(req->rq_reqmsg) == OST_WRITE)
 		cli->cl_w_in_flight--;
 	else
@@ -1871,13 +1892,13 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli,
 	}
 
 	pga = kcalloc(page_count, sizeof(*pga), GFP_NOFS);
-	if (pga == NULL) {
+	if (!pga) {
 		rc = -ENOMEM;
 		goto out;
 	}
 
 	oa = kmem_cache_alloc(obdo_cachep, GFP_NOFS | __GFP_ZERO);
-	if (oa == NULL) {
+	if (!oa) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1886,7 +1907,7 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli,
 	list_for_each_entry(oap, &rpc_list, oap_rpc_item) {
 		struct cl_page *page = oap2cl_page(oap);
 
-		if (clerq == NULL) {
+		if (!clerq) {
 			clerq = cl_req_alloc(env, page, crt,
 					     1 /* only 1-object rpcs for now */);
 			if (IS_ERR(clerq)) {
@@ -1907,7 +1928,7 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli,
 	}
 
 	/* always get the data for the obdo for the rpc */
-	LASSERT(clerq != NULL);
+	LASSERT(clerq);
 	crattr->cra_oa = oa;
 	cl_req_attr_set(env, clerq, crattr, ~0ULL);
 	if (lock) {
@@ -1938,7 +1959,8 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli,
 	 * we race with setattr (locally or in queue at OST).  If OST gets
 	 * later setattr before earlier BRW (as determined by the request xid),
 	 * the OST will not use BRW timestamps.  Sadly, there is no obvious
-	 * way to do this in a single call.  bug 10150 */
+	 * way to do this in a single call.  bug 10150
+	 */
 	body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
 	crattr->cra_oa = &body->oa;
 	cl_req_attr_set(env, clerq, crattr,
@@ -1955,11 +1977,12 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli,
 	aa->aa_clerq = clerq;
 
 	/* queued sync pages can be torn down while the pages
-	 * were between the pending list and the rpc */
+	 * were between the pending list and the rpc
+	 */
 	tmp = NULL;
 	list_for_each_entry(oap, &aa->aa_oaps, oap_rpc_item) {
 		/* only one oap gets a request reference */
-		if (tmp == NULL)
+		if (!tmp)
 			tmp = oap;
 		if (oap->oap_interrupted && !req->rq_intr) {
 			CDEBUG(D_INODE, "oap %p in req %p interrupted\n",
@@ -1967,7 +1990,7 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli,
 			ptlrpc_mark_interrupted(req);
 		}
 	}
-	if (tmp != NULL)
+	if (tmp)
 		tmp->oap_request = ptlrpc_request_addref(req);
 
 	client_obd_list_lock(&cli->cl_loi_list_lock);
@@ -2001,13 +2024,14 @@ out:
 	kfree(crattr);
 
 	if (rc != 0) {
-		LASSERT(req == NULL);
+		LASSERT(!req);
 
 		if (oa)
 			kmem_cache_free(obdo_cachep, oa);
 		kfree(pga);
 		/* this should happen rarely and is pretty bad, it makes the
-		 * pending list not follow the dirty order */
+		 * pending list not follow the dirty order
+		 */
 		while (!list_empty(ext_list)) {
 			ext = list_entry(ext_list->next, struct osc_extent,
 					     oe_link);
@@ -2026,7 +2050,6 @@ static int osc_set_lock_data_with_check(struct ldlm_lock *lock,
 	void *data = einfo->ei_cbdata;
 	int set = 0;
 
-	LASSERT(lock != NULL);
 	LASSERT(lock->l_blocking_ast == einfo->ei_cb_bl);
 	LASSERT(lock->l_resource->lr_type == einfo->ei_type);
 	LASSERT(lock->l_completion_ast == einfo->ei_cb_cp);
@@ -2035,7 +2058,7 @@ static int osc_set_lock_data_with_check(struct ldlm_lock *lock,
 	lock_res_and_lock(lock);
 	spin_lock(&osc_ast_guard);
 
-	if (lock->l_ast_data == NULL)
+	if (!lock->l_ast_data)
 		lock->l_ast_data = data;
 	if (lock->l_ast_data == data)
 		set = 1;
@@ -2052,7 +2075,7 @@ static int osc_set_data_with_check(struct lustre_handle *lockh,
 	struct ldlm_lock *lock = ldlm_handle2lock(lockh);
 	int set = 0;
 
-	if (lock != NULL) {
+	if (lock) {
 		set = osc_set_lock_data_with_check(lock, einfo);
 		LDLM_LOCK_PUT(lock);
 	} else
@@ -2064,7 +2087,8 @@ static int osc_set_data_with_check(struct lustre_handle *lockh,
 /* find any ldlm lock of the inode in osc
  * return 0    not find
  *	1    find one
- *      < 0    error */
+ *      < 0    error
+ */
 static int osc_find_cbdata(struct obd_export *exp, struct lov_stripe_md *lsm,
 			   ldlm_iterator_t replace, void *data)
 {
@@ -2095,7 +2119,6 @@ static int osc_enqueue_fini(struct ptlrpc_request *req, struct ost_lvb *lvb,
 			rep = req_capsule_server_get(&req->rq_pill,
 						     &RMF_DLM_REP);
 
-			LASSERT(rep != NULL);
 			rep->lock_policy_res1 =
 				ptlrpc_status_ntoh(rep->lock_policy_res1);
 			if (rep->lock_policy_res1)
@@ -2127,18 +2150,21 @@ static int osc_enqueue_interpret(const struct lu_env *env,
 	__u64 *flags = aa->oa_flags;
 
 	/* Make a local copy of a lock handle and a mode, because aa->oa_*
-	 * might be freed anytime after lock upcall has been called. */
+	 * might be freed anytime after lock upcall has been called.
+	 */
 	lustre_handle_copy(&handle, aa->oa_lockh);
 	mode = aa->oa_ei->ei_mode;
 
 	/* ldlm_cli_enqueue is holding a reference on the lock, so it must
-	 * be valid. */
+	 * be valid.
+	 */
 	lock = ldlm_handle2lock(&handle);
 
 	/* Take an additional reference so that a blocking AST that
 	 * ldlm_cli_enqueue_fini() might post for a failed lock, is guaranteed
 	 * to arrive after an upcall has been executed by
-	 * osc_enqueue_fini(). */
+	 * osc_enqueue_fini().
+	 */
 	ldlm_lock_addref(&handle, mode);
 
 	/* Let CP AST to grant the lock first. */
@@ -2170,7 +2196,7 @@ static int osc_enqueue_interpret(const struct lu_env *env,
 		 */
 		ldlm_lock_decref(&handle, mode);
 
-	LASSERTF(lock != NULL, "lockh %p, req %p, aa %p - client evicted?\n",
+	LASSERTF(lock, "lockh %p, req %p, aa %p - client evicted?\n",
 		 aa->oa_lockh, req, aa);
 	ldlm_lock_decref(&handle, mode);
 	LDLM_LOCK_PUT(lock);
@@ -2185,7 +2211,8 @@ struct ptlrpc_request_set *PTLRPCD_SET = (void *)1;
  * others may take a considerable amount of time in a case of ost failure; and
  * when other sync requests do not get released lock from a client, the client
  * is excluded from the cluster -- such scenarious make the life difficult, so
- * release locks just after they are obtained. */
+ * release locks just after they are obtained.
+ */
 int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
 		     __u64 *flags, ldlm_policy_data_t *policy,
 		     struct ost_lvb *lvb, int kms_valid,
@@ -2198,11 +2225,12 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
 	struct ptlrpc_request *req = NULL;
 	int intent = *flags & LDLM_FL_HAS_INTENT;
 	__u64 match_lvb = (agl != 0 ? 0 : LDLM_FL_LVB_READY);
-	ldlm_mode_t mode;
+	enum ldlm_mode mode;
 	int rc;
 
 	/* Filesystem lock extents are extended to page boundaries so that
-	 * dealing with the page cache is a little smoother.  */
+	 * dealing with the page cache is a little smoother.
+	 */
 	policy->l_extent.start -= policy->l_extent.start & ~CFS_PAGE_MASK;
 	policy->l_extent.end |= ~CFS_PAGE_MASK;
 
@@ -2226,7 +2254,8 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
 	 *
 	 * At some point we should cancel the read lock instead of making them
 	 * send us a blocking callback, but there are problems with canceling
-	 * locks out from other users right now, too. */
+	 * locks out from other users right now, too.
+	 */
 	mode = einfo->ei_mode;
 	if (einfo->ei_mode == LCK_PR)
 		mode |= LCK_PW;
@@ -2238,7 +2267,8 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
 		if ((agl != 0) && !(matched->l_flags & LDLM_FL_LVB_READY)) {
 			/* For AGL, if enqueue RPC is sent but the lock is not
 			 * granted, then skip to process this strpe.
-			 * Return -ECANCELED to tell the caller. */
+			 * Return -ECANCELED to tell the caller.
+			 */
 			ldlm_lock_decref(lockh, mode);
 			LDLM_LOCK_PUT(matched);
 			return -ECANCELED;
@@ -2247,19 +2277,22 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
 		if (osc_set_lock_data_with_check(matched, einfo)) {
 			*flags |= LDLM_FL_LVB_READY;
 			/* addref the lock only if not async requests and PW
-			 * lock is matched whereas we asked for PR. */
+			 * lock is matched whereas we asked for PR.
+			 */
 			if (!rqset && einfo->ei_mode != mode)
 				ldlm_lock_addref(lockh, LCK_PR);
 			if (intent) {
 				/* I would like to be able to ASSERT here that
 				 * rss <= kms, but I can't, for reasons which
-				 * are explained in lov_enqueue() */
+				 * are explained in lov_enqueue()
+				 */
 			}
 
 			/* We already have a lock, and it's referenced.
 			 *
 			 * At this point, the cl_lock::cll_state is CLS_QUEUING,
-			 * AGL upcall may change it to CLS_HELD directly. */
+			 * AGL upcall may change it to CLS_HELD directly.
+			 */
 			(*upcall)(cookie, ELDLM_OK);
 
 			if (einfo->ei_mode != mode)
@@ -2281,7 +2314,7 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
 
 		req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 					   &RQF_LDLM_ENQUEUE_LVB);
-		if (req == NULL)
+		if (!req)
 			return -ENOMEM;
 
 		rc = ldlm_prep_enqueue_req(exp, req, &cancels, 0);
@@ -2341,27 +2374,29 @@ int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id,
 {
 	struct obd_device *obd = exp->exp_obd;
 	__u64 lflags = *flags;
-	ldlm_mode_t rc;
+	enum ldlm_mode rc;
 
 	if (OBD_FAIL_CHECK(OBD_FAIL_OSC_MATCH))
 		return -EIO;
 
 	/* Filesystem lock extents are extended to page boundaries so that
-	 * dealing with the page cache is a little smoother */
+	 * dealing with the page cache is a little smoother
+	 */
 	policy->l_extent.start -= policy->l_extent.start & ~CFS_PAGE_MASK;
 	policy->l_extent.end |= ~CFS_PAGE_MASK;
 
 	/* Next, search for already existing extent locks that will cover us */
 	/* If we're trying to read, we also search for an existing PW lock.  The
 	 * VFS and page cache already protect us locally, so lots of readers/
-	 * writers can share a single PW lock. */
+	 * writers can share a single PW lock.
+	 */
 	rc = mode;
 	if (mode == LCK_PR)
 		rc |= LCK_PW;
 	rc = ldlm_lock_match(obd->obd_namespace, lflags,
 			     res_id, type, policy, rc, lockh, unref);
 	if (rc) {
-		if (data != NULL) {
+		if (data) {
 			if (!osc_set_data_with_check(lockh, data)) {
 				if (!(lflags & LDLM_FL_TEST_LOCK))
 					ldlm_lock_decref(lockh, rc);
@@ -2398,8 +2433,9 @@ static int osc_statfs_interpret(const struct lu_env *env,
 		 * due to issues at a higher level (LOV).
 		 * Exit immediately since the caller is
 		 * aware of the problem and takes care
-		 * of the clean up */
-		 return rc;
+		 * of the clean up
+		 */
+		return rc;
 
 	if ((rc == -ENOTCONN || rc == -EAGAIN) &&
 	    (aa->aa_oi->oi_flags & OBD_STATFS_NODELAY)) {
@@ -2411,7 +2447,7 @@ static int osc_statfs_interpret(const struct lu_env *env,
 		goto out;
 
 	msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
-	if (msfs == NULL) {
+	if (!msfs) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -2436,9 +2472,10 @@ static int osc_statfs_async(struct obd_export *exp,
 	 * extra calls into the filesystem if that isn't necessary (e.g.
 	 * during mount that would help a bit).  Having relative timestamps
 	 * is not so great if request processing is slow, while absolute
-	 * timestamps are not ideal because they need time synchronization. */
+	 * timestamps are not ideal because they need time synchronization.
+	 */
 	req = ptlrpc_request_alloc(obd->u.cli.cl_import, &RQF_OST_STATFS);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_STATFS);
@@ -2474,8 +2511,9 @@ static int osc_statfs(const struct lu_env *env, struct obd_export *exp,
 	struct obd_import *imp = NULL;
 	int rc;
 
-	/*Since the request might also come from lprocfs, so we need
-	 *sync this with client_disconnect_export Bug15684*/
+	/* Since the request might also come from lprocfs, so we need
+	 * sync this with client_disconnect_export Bug15684
+	 */
 	down_read(&obd->u.cli.cl_sem);
 	if (obd->u.cli.cl_import)
 		imp = class_import_get(obd->u.cli.cl_import);
@@ -2488,12 +2526,13 @@ static int osc_statfs(const struct lu_env *env, struct obd_export *exp,
 	 * extra calls into the filesystem if that isn't necessary (e.g.
 	 * during mount that would help a bit).  Having relative timestamps
 	 * is not so great if request processing is slow, while absolute
-	 * timestamps are not ideal because they need time synchronization. */
+	 * timestamps are not ideal because they need time synchronization.
+	 */
 	req = ptlrpc_request_alloc(imp, &RQF_OST_STATFS);
 
 	class_import_put(imp);
 
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_STATFS);
@@ -2516,7 +2555,7 @@ static int osc_statfs(const struct lu_env *env, struct obd_export *exp,
 		goto out;
 
 	msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
-	if (msfs == NULL) {
+	if (!msfs) {
 		rc = -EPROTO;
 		goto out;
 	}
@@ -2546,7 +2585,8 @@ static int osc_getstripe(struct lov_stripe_md *lsm,
 		return -ENODATA;
 
 	/* we only need the header part from user space to get lmm_magic and
-	 * lmm_stripe_count, (the header part is common to v1 and v3) */
+	 * lmm_stripe_count, (the header part is common to v1 and v3)
+	 */
 	lum_size = sizeof(struct lov_user_md_v1);
 	if (copy_from_user(&lum, lump, lum_size))
 		return -EFAULT;
@@ -2561,7 +2601,8 @@ static int osc_getstripe(struct lov_stripe_md *lsm,
 	LASSERT(sizeof(lum.lmm_objects[0]) == sizeof(lumk->lmm_objects[0]));
 
 	/* we can use lov_mds_md_size() to compute lum_size
-	 * because lov_user_md_vX and lov_mds_md_vX have the same size */
+	 * because lov_user_md_vX and lov_mds_md_vX have the same size
+	 */
 	if (lum.lmm_stripe_count > 0) {
 		lum_size = lov_mds_md_size(lum.lmm_stripe_count, lum.lmm_magic);
 		lumk = kzalloc(lum_size, GFP_NOFS);
@@ -2701,7 +2742,7 @@ static int osc_get_info(const struct lu_env *env, struct obd_export *exp,
 
 		req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 					   &RQF_OST_GET_INFO_LAST_ID);
-		if (req == NULL)
+		if (!req)
 			return -ENOMEM;
 
 		req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_KEY,
@@ -2722,7 +2763,7 @@ static int osc_get_info(const struct lu_env *env, struct obd_export *exp,
 			goto out;
 
 		reply = req_capsule_server_get(&req->rq_pill, &RMF_OBD_ID);
-		if (reply == NULL) {
+		if (!reply) {
 			rc = -EPROTO;
 			goto out;
 		}
@@ -2736,7 +2777,7 @@ out:
 		struct ldlm_res_id res_id;
 		ldlm_policy_data_t policy;
 		struct lustre_handle lockh;
-		ldlm_mode_t mode = 0;
+		enum ldlm_mode mode = 0;
 		struct ptlrpc_request *req;
 		struct ll_user_fiemap *reply;
 		char *tmp;
@@ -2775,7 +2816,7 @@ out:
 skip_locking:
 		req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 					   &RQF_OST_GET_INFO_FIEMAP);
-		if (req == NULL) {
+		if (!req) {
 			rc = -ENOMEM;
 			goto drop_lock;
 		}
@@ -2804,7 +2845,7 @@ skip_locking:
 			goto fini_req;
 
 		reply = req_capsule_server_get(&req->rq_pill, &RMF_FIEMAP_VAL);
-		if (reply == NULL) {
+		if (!reply) {
 			rc = -EPROTO;
 			goto fini_req;
 		}
@@ -2853,7 +2894,7 @@ static int osc_set_info_async(const struct lu_env *env, struct obd_export *exp,
 	if (KEY_IS(KEY_CACHE_SET)) {
 		struct client_obd *cli = &obd->u.cli;
 
-		LASSERT(cli->cl_cache == NULL); /* only once */
+		LASSERT(!cli->cl_cache); /* only once */
 		cli->cl_cache = val;
 		atomic_inc(&cli->cl_cache->ccc_users);
 		cli->cl_lru_left = &cli->cl_cache->ccc_lru_left;
@@ -2881,16 +2922,17 @@ static int osc_set_info_async(const struct lu_env *env, struct obd_export *exp,
 		return -EINVAL;
 
 	/* We pass all other commands directly to OST. Since nobody calls osc
-	   methods directly and everybody is supposed to go through LOV, we
-	   assume lov checked invalid values for us.
-	   The only recognised values so far are evict_by_nid and mds_conn.
-	   Even if something bad goes through, we'd get a -EINVAL from OST
-	   anyway. */
+	 * methods directly and everybody is supposed to go through LOV, we
+	 * assume lov checked invalid values for us.
+	 * The only recognised values so far are evict_by_nid and mds_conn.
+	 * Even if something bad goes through, we'd get a -EINVAL from OST
+	 * anyway.
+	 */
 
 	req = ptlrpc_request_alloc(imp, KEY_IS(KEY_GRANT_SHRINK) ?
 						&RQF_OST_SET_GRANT_INFO :
 						&RQF_OBD_SET_INFO);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_KEY,
@@ -2929,7 +2971,7 @@ static int osc_set_info_async(const struct lu_env *env, struct obd_export *exp,
 
 	ptlrpc_request_set_replen(req);
 	if (!KEY_IS(KEY_GRANT_SHRINK)) {
-		LASSERT(set != NULL);
+		LASSERT(set);
 		ptlrpc_set_add_req(set, req);
 		ptlrpc_check_set(NULL, set);
 	} else {
@@ -2947,7 +2989,7 @@ static int osc_reconnect(const struct lu_env *env,
 {
 	struct client_obd *cli = &obd->u.cli;
 
-	if (data != NULL && (data->ocd_connect_flags & OBD_CONNECT_GRANT)) {
+	if (data && (data->ocd_connect_flags & OBD_CONNECT_GRANT)) {
 		long lost_grant;
 
 		client_obd_list_lock(&cli->cl_loi_list_lock);
@@ -2988,7 +3030,7 @@ static int osc_disconnect(struct obd_export *exp)
 	 * So the osc should be disconnected from the shrink list, after we
 	 * are sure the import has been destroyed. BUG18662
 	 */
-	if (obd->u.cli.cl_import == NULL)
+	if (!obd->u.cli.cl_import)
 		osc_del_shrink_grant(&obd->u.cli);
 	return rc;
 }
@@ -3025,7 +3067,8 @@ static int osc_import_event(struct obd_device *obd,
 			/* Reset grants */
 			cli = &obd->u.cli;
 			/* all pages go to failing rpcs due to the invalid
-			 * import */
+			 * import
+			 */
 			osc_io_unplug(env, cli, NULL);
 
 			ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY);
@@ -3207,13 +3250,13 @@ static int osc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
 	return 0;
 }
 
-int osc_cleanup(struct obd_device *obd)
+static int osc_cleanup(struct obd_device *obd)
 {
 	struct client_obd *cli = &obd->u.cli;
 	int rc;
 
 	/* lru cleanup */
-	if (cli->cl_cache != NULL) {
+	if (cli->cl_cache) {
 		LASSERT(atomic_read(&cli->cl_cache->ccc_users) > 0);
 		spin_lock(&cli->cl_cache->ccc_lru_lock);
 		list_del_init(&cli->cl_lru_osc);
@@ -3256,7 +3299,7 @@ static int osc_process_config(struct obd_device *obd, u32 len, void *buf)
 	return osc_process_config_base(obd, buf);
 }
 
-struct obd_ops osc_obd_ops = {
+static struct obd_ops osc_obd_ops = {
 	.owner          = THIS_MODULE,
 	.setup          = osc_setup,
 	.precleanup     = osc_precleanup,
@@ -3299,7 +3342,8 @@ static int __init osc_init(void)
 
 	/* print an address of _any_ initialized kernel symbol from this
 	 * module, to allow debugging with gdb that doesn't support data
-	 * symbols from modules.*/
+	 * symbols from modules.
+	 */
 	CDEBUG(D_INFO, "Lustre OSC module (%p).\n", &osc_caches);
 
 	rc = lu_kmem_init(osc_caches);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c b/drivers/staging/lustre/lustre/ptlrpc/client.c
index 1cc3c69..9b89068 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/client.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/client.c
@@ -145,7 +145,7 @@ struct ptlrpc_bulk_desc *ptlrpc_prep_bulk_imp(struct ptlrpc_request *req,
 
 	LASSERT(type == BULK_PUT_SINK || type == BULK_GET_SOURCE);
 	desc = ptlrpc_new_bulk(npages, max_brw, type, portal);
-	if (desc == NULL)
+	if (!desc)
 		return NULL;
 
 	desc->bd_import_generation = req->rq_import_generation;
@@ -171,7 +171,7 @@ void __ptlrpc_prep_bulk_page(struct ptlrpc_bulk_desc *desc,
 			     struct page *page, int pageoffset, int len, int pin)
 {
 	LASSERT(desc->bd_iov_count < desc->bd_max_iov);
-	LASSERT(page != NULL);
+	LASSERT(page);
 	LASSERT(pageoffset >= 0);
 	LASSERT(len > 0);
 	LASSERT(pageoffset + len <= PAGE_CACHE_SIZE);
@@ -193,7 +193,6 @@ void __ptlrpc_free_bulk(struct ptlrpc_bulk_desc *desc, int unpin)
 {
 	int i;
 
-	LASSERT(desc != NULL);
 	LASSERT(desc->bd_iov_count != LI_POISON); /* not freed already */
 	LASSERT(desc->bd_md_count == 0);	 /* network hands off */
 	LASSERT((desc->bd_export != NULL) ^ (desc->bd_import != NULL));
@@ -412,7 +411,7 @@ int ptlrpc_request_cache_init(void)
 	request_cache = kmem_cache_create("ptlrpc_cache",
 					  sizeof(struct ptlrpc_request),
 					  0, SLAB_HWCACHE_ALIGN, NULL);
-	return request_cache == NULL ? -ENOMEM : 0;
+	return !request_cache ? -ENOMEM : 0;
 }
 
 void ptlrpc_request_cache_fini(void)
@@ -442,8 +441,6 @@ void ptlrpc_free_rq_pool(struct ptlrpc_request_pool *pool)
 	struct list_head *l, *tmp;
 	struct ptlrpc_request *req;
 
-	LASSERT(pool != NULL);
-
 	spin_lock(&pool->prp_lock);
 	list_for_each_safe(l, tmp, &pool->prp_req_list) {
 		req = list_entry(l, struct ptlrpc_request, rq_list);
@@ -753,7 +750,7 @@ ptlrpc_request_alloc_internal(struct obd_import *imp,
 	struct ptlrpc_request *request;
 
 	request = __ptlrpc_request_alloc(imp, pool);
-	if (request == NULL)
+	if (!request)
 		return NULL;
 
 	req_capsule_init(&request->rq_pill, request, RCL_CLIENT);
@@ -952,10 +949,10 @@ void ptlrpc_set_add_req(struct ptlrpc_request_set *set,
 	atomic_inc(&set->set_remaining);
 	req->rq_queued_time = cfs_time_current();
 
-	if (req->rq_reqmsg != NULL)
+	if (req->rq_reqmsg)
 		lustre_msg_set_jobid(req->rq_reqmsg, NULL);
 
-	if (set->set_producer != NULL)
+	if (set->set_producer)
 		/*
 		 * If the request set has a producer callback, the RPC must be
 		 * sent straight away
@@ -975,7 +972,7 @@ void ptlrpc_set_add_new_req(struct ptlrpcd_ctl *pc,
 	struct ptlrpc_request_set *set = pc->pc_set;
 	int count, i;
 
-	LASSERT(req->rq_set == NULL);
+	LASSERT(!req->rq_set);
 	LASSERT(test_bit(LIOD_STOP, &pc->pc_flags) == 0);
 
 	spin_lock(&set->set_new_req_lock);
@@ -1016,7 +1013,6 @@ static int ptlrpc_import_delay_req(struct obd_import *imp,
 {
 	int delay = 0;
 
-	LASSERT(status != NULL);
 	*status = 0;
 
 	if (req->rq_ctx_init || req->rq_ctx_fini) {
@@ -1079,7 +1075,7 @@ static int ptlrpc_console_allow(struct ptlrpc_request *req)
 	__u32 opc;
 	int err;
 
-	LASSERT(req->rq_reqmsg != NULL);
+	LASSERT(req->rq_reqmsg);
 	opc = lustre_msg_get_opc(req->rq_reqmsg);
 
 	/*
@@ -1168,7 +1164,7 @@ static int after_reply(struct ptlrpc_request *req)
 	struct timespec64 work_start;
 	long timediff;
 
-	LASSERT(obd != NULL);
+	LASSERT(obd);
 	/* repbuf must be unlinked */
 	LASSERT(!req->rq_receiving_reply && !req->rq_reply_unlink);
 
@@ -1248,7 +1244,7 @@ static int after_reply(struct ptlrpc_request *req)
 	ktime_get_real_ts64(&work_start);
 	timediff = (work_start.tv_sec - req->rq_arrival_time.tv_sec) * USEC_PER_SEC +
 		   (work_start.tv_nsec - req->rq_arrival_time.tv_nsec) / NSEC_PER_USEC;
-	if (obd->obd_svc_stats != NULL) {
+	if (obd->obd_svc_stats) {
 		lprocfs_counter_add(obd->obd_svc_stats, PTLRPC_REQWAIT_CNTR,
 				    timediff);
 		ptlrpc_lprocfs_rpc_sent(req, timediff);
@@ -1311,7 +1307,7 @@ static int after_reply(struct ptlrpc_request *req)
 			/* version recovery */
 			ptlrpc_save_versions(req);
 			ptlrpc_retain_replayable_request(req, imp);
-		} else if (req->rq_commit_cb != NULL &&
+		} else if (req->rq_commit_cb &&
 			   list_empty(&req->rq_replay_list)) {
 			/*
 			 * NB: don't call rq_commit_cb if it's already on
@@ -1438,7 +1434,7 @@ static inline int ptlrpc_set_producer(struct ptlrpc_request_set *set)
 {
 	int remaining, rc;
 
-	LASSERT(set->set_producer != NULL);
+	LASSERT(set->set_producer);
 
 	remaining = atomic_read(&set->set_remaining);
 
@@ -1751,7 +1747,7 @@ int ptlrpc_check_set(const struct lu_env *env, struct ptlrpc_request_set *set)
 			 * process the reply. Similarly if the RPC returned
 			 * an error, and therefore the bulk will never arrive.
 			 */
-			if (req->rq_bulk == NULL || req->rq_status < 0) {
+			if (!req->rq_bulk || req->rq_status < 0) {
 				ptlrpc_rqphase_move(req, RQ_PHASE_INTERPRET);
 				goto interpret;
 			}
@@ -1803,7 +1799,7 @@ interpret:
 		}
 		ptlrpc_rqphase_move(req, RQ_PHASE_COMPLETE);
 
-		CDEBUG(req->rq_reqmsg != NULL ? D_RPCTRACE : 0,
+		CDEBUG(req->rq_reqmsg ? D_RPCTRACE : 0,
 		       "Completed RPC pname:cluuid:pid:xid:nid:opc %s:%s:%d:%llu:%s:%d\n",
 		       current_comm(), imp->imp_obd->obd_uuid.uuid,
 		       lustre_msg_get_status(req->rq_reqmsg), req->rq_xid,
@@ -1883,7 +1879,7 @@ int ptlrpc_expire_one_request(struct ptlrpc_request *req, int async_unlink)
 		      "timed out for sent delay" : "timed out for slow reply"),
 		  (s64)req->rq_sent, (s64)req->rq_real_sent);
 
-	if (imp != NULL && obd_debug_peer_on_timeout)
+	if (imp && obd_debug_peer_on_timeout)
 		LNetDebugPeer(imp->imp_connection->c_peer);
 
 	ptlrpc_unregister_reply(req, async_unlink);
@@ -1892,7 +1888,7 @@ int ptlrpc_expire_one_request(struct ptlrpc_request *req, int async_unlink)
 	if (obd_dump_on_timeout)
 		libcfs_debug_dumplog();
 
-	if (imp == NULL) {
+	if (!imp) {
 		DEBUG_REQ(D_HA, req, "NULL import: already cleaned up?");
 		return 1;
 	}
@@ -1945,8 +1941,6 @@ int ptlrpc_expired_set(void *data)
 	struct list_head *tmp;
 	time64_t now = ktime_get_real_seconds();
 
-	LASSERT(set != NULL);
-
 	/* A timeout expired. See which reqs it applies to...  */
 	list_for_each(tmp, &set->set_requests) {
 		struct ptlrpc_request *req =
@@ -2003,7 +1997,6 @@ void ptlrpc_interrupted_set(void *data)
 	struct ptlrpc_request_set *set = data;
 	struct list_head *tmp;
 
-	LASSERT(set != NULL);
 	CDEBUG(D_RPCTRACE, "INTERRUPTED SET %p\n", set);
 
 	list_for_each(tmp, &set->set_requests) {
@@ -2175,7 +2168,7 @@ int ptlrpc_set_wait(struct ptlrpc_request_set *set)
 			rc = req->rq_status;
 	}
 
-	if (set->set_interpret != NULL) {
+	if (set->set_interpret) {
 		int (*interpreter)(struct ptlrpc_request_set *set, void *, int) =
 			set->set_interpret;
 		rc = interpreter(set, set->set_arg, rc);
@@ -2207,10 +2200,10 @@ EXPORT_SYMBOL(ptlrpc_set_wait);
  */
 static void __ptlrpc_free_req(struct ptlrpc_request *request, int locked)
 {
-	if (request == NULL)
+	if (!request)
 		return;
 	LASSERTF(!request->rq_receiving_reply, "req %p\n", request);
-	LASSERTF(request->rq_rqbd == NULL, "req %p\n", request);/* client-side */
+	LASSERTF(!request->rq_rqbd, "req %p\n", request);/* client-side */
 	LASSERTF(list_empty(&request->rq_list), "req %p\n", request);
 	LASSERTF(list_empty(&request->rq_set_chain), "req %p\n", request);
 	LASSERTF(list_empty(&request->rq_exp_list), "req %p\n", request);
@@ -2222,7 +2215,7 @@ static void __ptlrpc_free_req(struct ptlrpc_request *request, int locked)
 	 * We must take it off the imp_replay_list first.  Otherwise, we'll set
 	 * request->rq_reqmsg to NULL while osc_close is dereferencing it.
 	 */
-	if (request->rq_import != NULL) {
+	if (request->rq_import) {
 		if (!locked)
 			spin_lock(&request->rq_import->imp_lock);
 		list_del_init(&request->rq_replay_list);
@@ -2237,20 +2230,20 @@ static void __ptlrpc_free_req(struct ptlrpc_request *request, int locked)
 		LBUG();
 	}
 
-	if (request->rq_repbuf != NULL)
+	if (request->rq_repbuf)
 		sptlrpc_cli_free_repbuf(request);
-	if (request->rq_export != NULL) {
+	if (request->rq_export) {
 		class_export_put(request->rq_export);
 		request->rq_export = NULL;
 	}
-	if (request->rq_import != NULL) {
+	if (request->rq_import) {
 		class_import_put(request->rq_import);
 		request->rq_import = NULL;
 	}
-	if (request->rq_bulk != NULL)
+	if (request->rq_bulk)
 		ptlrpc_free_bulk_pin(request->rq_bulk);
 
-	if (request->rq_reqbuf != NULL || request->rq_clrbuf != NULL)
+	if (request->rq_reqbuf || request->rq_clrbuf)
 		sptlrpc_cli_free_reqbuf(request);
 
 	if (request->rq_cli_ctx)
@@ -2270,7 +2263,7 @@ static void __ptlrpc_free_req(struct ptlrpc_request *request, int locked)
  */
 static int __ptlrpc_req_finished(struct ptlrpc_request *request, int locked)
 {
-	if (request == NULL)
+	if (!request)
 		return 1;
 
 	if (request == LP_POISON ||
@@ -2352,7 +2345,7 @@ int ptlrpc_unregister_reply(struct ptlrpc_request *request, int async)
 	 * a chance to run reply_in_callback(), and to make sure we've
 	 * unlinked before returning a req to the pool.
 	 */
-	if (request->rq_set != NULL)
+	if (request->rq_set)
 		wq = &request->rq_set->set_waitq;
 	else
 		wq = &request->rq_reply_waitq;
@@ -2387,7 +2380,7 @@ static void ptlrpc_free_request(struct ptlrpc_request *req)
 	req->rq_replay = 0;
 	spin_unlock(&req->rq_lock);
 
-	if (req->rq_commit_cb != NULL)
+	if (req->rq_commit_cb)
 		req->rq_commit_cb(req);
 	list_del_init(&req->rq_replay_list);
 
@@ -2428,7 +2421,6 @@ void ptlrpc_free_committed(struct obd_import *imp)
 	struct ptlrpc_request *last_req = NULL; /* temporary fire escape */
 	bool skip_committed_list = true;
 
-	LASSERT(imp != NULL);
 	assert_spin_locked(&imp->imp_lock);
 
 	if (imp->imp_peer_committed_transno == imp->imp_last_transno_checked &&
@@ -2612,11 +2604,11 @@ int ptlrpc_queue_wait(struct ptlrpc_request *req)
 	struct ptlrpc_request_set *set;
 	int rc;
 
-	LASSERT(req->rq_set == NULL);
+	LASSERT(!req->rq_set);
 	LASSERT(!req->rq_receiving_reply);
 
 	set = ptlrpc_prep_set();
-	if (set == NULL) {
+	if (!set) {
 		CERROR("Unable to allocate ptlrpc set.");
 		return -ENOMEM;
 	}
@@ -2848,8 +2840,6 @@ void ptlrpc_abort_set(struct ptlrpc_request_set *set)
 {
 	struct list_head *tmp, *pos;
 
-	LASSERT(set != NULL);
-
 	list_for_each_safe(pos, tmp, &set->set_requests) {
 		struct ptlrpc_request *req =
 			list_entry(pos, struct ptlrpc_request,
@@ -2995,7 +2985,6 @@ static int work_interpreter(const struct lu_env *env,
 	struct ptlrpc_work_async_args *arg = data;
 
 	LASSERT(ptlrpcd_check_work(req));
-	LASSERT(arg->cb != NULL);
 
 	rc = arg->cb(env, arg->cbdata);
 
@@ -3027,12 +3016,12 @@ void *ptlrpcd_alloc_work(struct obd_import *imp,
 
 	might_sleep();
 
-	if (cb == NULL)
+	if (!cb)
 		return ERR_PTR(-EINVAL);
 
 	/* copy some code from deprecated fakereq. */
 	req = ptlrpc_request_cache_alloc(GFP_NOFS);
-	if (req == NULL) {
+	if (!req) {
 		CERROR("ptlrpc: run out of memory!\n");
 		return ERR_PTR(-ENOMEM);
 	}
diff --git a/drivers/staging/lustre/lustre/ptlrpc/connection.c b/drivers/staging/lustre/lustre/ptlrpc/connection.c
index da1f0b1..a14daff 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/connection.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/connection.c
@@ -72,7 +72,8 @@ ptlrpc_connection_get(lnet_process_id_t peer, lnet_nid_t self,
 	 * returned and may be compared against out object.
 	 */
 	/* In the function below, .hs_keycmp resolves to
-	 * conn_keycmp() */
+	 * conn_keycmp()
+	 */
 	/* coverity[overrun-buffer-val] */
 	conn2 = cfs_hash_findadd_unique(conn_hash, &peer, &conn->c_hash);
 	if (conn != conn2) {
@@ -172,7 +173,7 @@ conn_keycmp(const void *key, struct hlist_node *hnode)
 	struct ptlrpc_connection *conn;
 	const lnet_process_id_t *conn_key;
 
-	LASSERT(key != NULL);
+	LASSERT(key);
 	conn_key = key;
 	conn = hlist_entry(hnode, struct ptlrpc_connection, c_hash);
 
diff --git a/drivers/staging/lustre/lustre/ptlrpc/events.c b/drivers/staging/lustre/lustre/ptlrpc/events.c
index 07e76a2..47be21a 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/events.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/events.c
@@ -71,7 +71,8 @@ void request_out_callback(lnet_event_t *ev)
 	if (ev->type == LNET_EVENT_UNLINK || ev->status != 0) {
 
 		/* Failed send: make it seem like the reply timed out, just
-		 * like failing sends in client.c does currently...  */
+		 * like failing sends in client.c does currently...
+		 */
 
 		req->rq_net_err = 1;
 		ptlrpc_client_wake_req(req);
@@ -95,7 +96,8 @@ void reply_in_callback(lnet_event_t *ev)
 	LASSERT(ev->md.start == req->rq_repbuf);
 	LASSERT(ev->offset + ev->mlength <= req->rq_repbuf_len);
 	/* We've set LNET_MD_MANAGE_REMOTE for all outgoing requests
-	   for adaptive timeouts' early reply. */
+	 * for adaptive timeouts' early reply.
+	 */
 	LASSERT((ev->md.options & LNET_MD_MANAGE_REMOTE) != 0);
 
 	spin_lock(&req->rq_lock);
@@ -151,7 +153,8 @@ void reply_in_callback(lnet_event_t *ev)
 		req->rq_reply_off = ev->offset;
 		req->rq_nob_received = ev->mlength;
 		/* LNetMDUnlink can't be called under the LNET_LOCK,
-		   so we must unlink in ptlrpc_unregister_reply */
+		 * so we must unlink in ptlrpc_unregister_reply
+		 */
 		DEBUG_REQ(D_INFO, req,
 			  "reply in flags=%x mlen=%u offset=%d replen=%d",
 			  lustre_msg_get_flags(req->rq_reqmsg),
@@ -162,7 +165,8 @@ void reply_in_callback(lnet_event_t *ev)
 
 out_wake:
 	/* NB don't unlock till after wakeup; req can disappear under us
-	 * since we don't have our own ref */
+	 * since we don't have our own ref
+	 */
 	ptlrpc_client_wake_req(req);
 	spin_unlock(&req->rq_lock);
 }
@@ -213,7 +217,8 @@ void client_bulk_callback(lnet_event_t *ev)
 		desc->bd_failure = 1;
 
 	/* NB don't unlock till after wakeup; desc can disappear under us
-	 * otherwise */
+	 * otherwise
+	 */
 	if (desc->bd_md_count == 0)
 		ptlrpc_client_wake_req(desc->bd_req);
 
@@ -250,7 +255,8 @@ static void ptlrpc_req_add_history(struct ptlrpc_service_part *svcpt,
 	__u64 new_seq;
 
 	/* set sequence ID for request and add it to history list,
-	 * it must be called with hold svcpt::scp_lock */
+	 * it must be called with hold svcpt::scp_lock
+	 */
 
 	new_seq = (sec << REQS_SEC_SHIFT) |
 		  (usec << REQS_USEC_SHIFT) |
@@ -258,7 +264,8 @@ static void ptlrpc_req_add_history(struct ptlrpc_service_part *svcpt,
 
 	if (new_seq > svcpt->scp_hist_seq) {
 		/* This handles the initial case of scp_hist_seq == 0 or
-		 * we just jumped into a new time window */
+		 * we just jumped into a new time window
+		 */
 		svcpt->scp_hist_seq = new_seq;
 	} else {
 		LASSERT(REQS_SEQ_SHIFT(svcpt) < REQS_USEC_SHIFT);
@@ -266,7 +273,8 @@ static void ptlrpc_req_add_history(struct ptlrpc_service_part *svcpt,
 		 * however, it's possible that we used up all bits for
 		 * sequence and jumped into the next usec bucket (future time),
 		 * then we hope there will be less RPCs per bucket at some
-		 * point, and sequence will catch up again */
+		 * point, and sequence will catch up again
+		 */
 		svcpt->scp_hist_seq += (1U << REQS_SEQ_SHIFT(svcpt));
 		new_seq = svcpt->scp_hist_seq;
 	}
@@ -302,7 +310,8 @@ void request_in_callback(lnet_event_t *ev)
 		 * request buffer we can use the request object embedded in
 		 * rqbd.  Note that if we failed to allocate a request,
 		 * we'd have to re-post the rqbd, which we can't do in this
-		 * context. */
+		 * context.
+		 */
 		req = &rqbd->rqbd_req;
 		memset(req, 0, sizeof(*req));
 	} else {
@@ -312,7 +321,7 @@ void request_in_callback(lnet_event_t *ev)
 			return;
 		}
 		req = ptlrpc_request_cache_alloc(GFP_ATOMIC);
-		if (req == NULL) {
+		if (!req) {
 			CERROR("Can't allocate incoming request descriptor: Dropping %s RPC from %s\n",
 			       service->srv_name,
 			       libcfs_id2str(ev->initiator));
@@ -322,7 +331,8 @@ void request_in_callback(lnet_event_t *ev)
 
 	/* NB we ABSOLUTELY RELY on req being zeroed, so pointers are NULL,
 	 * flags are reset and scalars are zero.  We only set the message
-	 * size to non-zero if this was a successful receive. */
+	 * size to non-zero if this was a successful receive.
+	 */
 	req->rq_xid = ev->match_bits;
 	req->rq_reqbuf = ev->md.start + ev->offset;
 	if (ev->type == LNET_EVENT_PUT && ev->status == 0)
@@ -352,7 +362,8 @@ void request_in_callback(lnet_event_t *ev)
 		       svcpt->scp_nrqbds_posted);
 
 		/* Normally, don't complain about 0 buffers posted; LNET won't
-		 * drop incoming reqs since we set the portal lazy */
+		 * drop incoming reqs since we set the portal lazy
+		 */
 		if (test_req_buffer_pressure &&
 		    ev->type != LNET_EVENT_UNLINK &&
 		    svcpt->scp_nrqbds_posted == 0)
@@ -369,7 +380,8 @@ void request_in_callback(lnet_event_t *ev)
 	svcpt->scp_nreqs_incoming++;
 
 	/* NB everything can disappear under us once the request
-	 * has been queued and we unlock, so do the wake now... */
+	 * has been queued and we unlock, so do the wake now...
+	 */
 	wake_up(&svcpt->scp_waitq);
 
 	spin_unlock(&svcpt->scp_lock);
@@ -390,7 +402,8 @@ void reply_out_callback(lnet_event_t *ev)
 
 	if (!rs->rs_difficult) {
 		/* 'Easy' replies have no further processing so I drop the
-		 * net's ref on 'rs' */
+		 * net's ref on 'rs'
+		 */
 		LASSERT(ev->unlinked);
 		ptlrpc_rs_decref(rs);
 		return;
@@ -400,7 +413,8 @@ void reply_out_callback(lnet_event_t *ev)
 
 	if (ev->unlinked) {
 		/* Last network callback. The net's ref on 'rs' stays put
-		 * until ptlrpc_handle_rs() is done with it */
+		 * until ptlrpc_handle_rs() is done with it
+		 */
 		spin_lock(&svcpt->scp_rep_lock);
 		spin_lock(&rs->rs_lock);
 
@@ -443,7 +457,7 @@ int ptlrpc_uuid_to_peer(struct obd_uuid *uuid,
 	lnet_nid_t dst_nid;
 	lnet_nid_t src_nid;
 
-	peer->pid = LUSTRE_SRV_LNET_PID;
+	peer->pid = LNET_PID_LUSTRE;
 
 	/* Choose the matching UUID that's closest */
 	while (lustre_uuid_to_peer(uuid->uuid, &dst_nid, count++) == 0) {
@@ -483,7 +497,8 @@ static void ptlrpc_ni_fini(void)
 	/* Wait for the event queue to become idle since there may still be
 	 * messages in flight with pending events (i.e. the fire-and-forget
 	 * messages == client requests and "non-difficult" server
-	 * replies */
+	 * replies
+	 */
 
 	for (retries = 0;; retries++) {
 		rc = LNetEQFree(ptlrpc_eq_h);
@@ -513,7 +528,7 @@ static lnet_pid_t ptl_get_pid(void)
 {
 	lnet_pid_t pid;
 
-	pid = LUSTRE_SRV_LNET_PID;
+	pid = LNET_PID_LUSTRE;
 	return pid;
 }
 
@@ -533,11 +548,13 @@ static int ptlrpc_ni_init(void)
 	}
 
 	/* CAVEAT EMPTOR: how we process portals events is _radically_
-	 * different depending on... */
+	 * different depending on...
+	 */
 	/* kernel LNet calls our master callback when there are new event,
 	 * because we are guaranteed to get every event via callback,
 	 * so we just set EQ size to 0 to avoid overhead of serializing
-	 * enqueue/dequeue operations in LNet. */
+	 * enqueue/dequeue operations in LNet.
+	 */
 	rc = LNetEQAlloc(0, ptlrpc_master_callback, &ptlrpc_eq_h);
 	if (rc == 0)
 		return 0;
diff --git a/drivers/staging/lustre/lustre/ptlrpc/import.c b/drivers/staging/lustre/lustre/ptlrpc/import.c
index f752c78..70fcac1 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/import.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/import.c
@@ -112,7 +112,8 @@ int ptlrpc_import_recovery_state_machine(struct obd_import *imp);
  * CLOSED. I would rather refcount the import and free it after
  * disconnection like we do with exports. To do that, the client_obd
  * will need to save the peer info somewhere other than in the import,
- * though. */
+ * though.
+ */
 int ptlrpc_init_import(struct obd_import *imp)
 {
 	spin_lock(&imp->imp_lock);
@@ -282,11 +283,13 @@ void ptlrpc_invalidate_import(struct obd_import *imp)
 	/* Wait forever until inflight == 0. We really can't do it another
 	 * way because in some cases we need to wait for very long reply
 	 * unlink. We can't do anything before that because there is really
-	 * no guarantee that some rdma transfer is not in progress right now. */
+	 * no guarantee that some rdma transfer is not in progress right now.
+	 */
 	do {
 		/* Calculate max timeout for waiting on rpcs to error
 		 * out. Use obd_timeout if calculated value is smaller
-		 * than it. */
+		 * than it.
+		 */
 		if (!OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK)) {
 			timeout = ptlrpc_inflight_timeout(imp);
 			timeout += timeout / 3;
@@ -304,7 +307,8 @@ void ptlrpc_invalidate_import(struct obd_import *imp)
 
 		/* Wait for all requests to error out and call completion
 		 * callbacks. Cap it at obd_timeout -- these should all
-		 * have been locally cancelled by ptlrpc_abort_inflight. */
+		 * have been locally cancelled by ptlrpc_abort_inflight.
+		 */
 		lwi = LWI_TIMEOUT_INTERVAL(
 			cfs_timeout_cap(cfs_time_seconds(timeout)),
 			(timeout > 1)?cfs_time_seconds(1):cfs_time_seconds(1)/2,
@@ -328,13 +332,15 @@ void ptlrpc_invalidate_import(struct obd_import *imp)
 				 * maybe waiting for long reply unlink in
 				 * sluggish nets). Let's check this. If there
 				 * is no inflight and unregistering != 0, this
-				 * is bug. */
+				 * is bug.
+				 */
 				LASSERTF(count == 0, "Some RPCs are still unregistering: %d\n",
 					 count);
 
 				/* Let's save one loop as soon as inflight have
 				 * dropped to zero. No new inflights possible at
-				 * this point. */
+				 * this point.
+				 */
 				rc = 0;
 			} else {
 				list_for_each_safe(tmp, n,
@@ -501,7 +507,8 @@ static int import_select_connection(struct obd_import *imp)
 		       conn->oic_last_attempt);
 
 		/* If we have not tried this connection since
-		   the last successful attempt, go with this one */
+		 * the last successful attempt, go with this one
+		 */
 		if ((conn->oic_last_attempt == 0) ||
 		    cfs_time_beforeq_64(conn->oic_last_attempt,
 				       imp->imp_last_success_conn)) {
@@ -511,8 +518,9 @@ static int import_select_connection(struct obd_import *imp)
 		}
 
 		/* If all of the connections have already been tried
-		   since the last successful connection; just choose the
-		   least recently used */
+		 * since the last successful connection; just choose the
+		 * least recently used
+		 */
 		if (!imp_conn)
 			imp_conn = conn;
 		else if (cfs_time_before_64(conn->oic_last_attempt,
@@ -529,10 +537,11 @@ static int import_select_connection(struct obd_import *imp)
 	LASSERT(imp_conn->oic_conn);
 
 	/* If we've tried everything, and we're back to the beginning of the
-	   list, increase our timeout and try again. It will be reset when
-	   we do finally connect. (FIXME: really we should wait for all network
-	   state associated with the last connection attempt to drain before
-	   trying to reconnect on it.) */
+	 * list, increase our timeout and try again. It will be reset when
+	 * we do finally connect. (FIXME: really we should wait for all network
+	 * state associated with the last connection attempt to drain before
+	 * trying to reconnect on it.)
+	 */
 	if (tried_all && (imp->imp_conn_list.next == &imp_conn->oic_item)) {
 		struct adaptive_timeout *at = &imp->imp_at.iat_net_latency;
 
@@ -553,7 +562,6 @@ static int import_select_connection(struct obd_import *imp)
 	imp->imp_connection = ptlrpc_connection_addref(imp_conn->oic_conn);
 
 	dlmexp = class_conn2export(&imp->imp_dlm_handle);
-	LASSERT(dlmexp != NULL);
 	ptlrpc_connection_put(dlmexp->exp_connection);
 	dlmexp->exp_connection = ptlrpc_connection_addref(imp_conn->oic_conn);
 	class_export_put(dlmexp);
@@ -590,7 +598,8 @@ static int ptlrpc_first_transno(struct obd_import *imp, __u64 *transno)
 	struct list_head *tmp;
 
 	/* The requests in committed_list always have smaller transnos than
-	 * the requests in replay_list */
+	 * the requests in replay_list
+	 */
 	if (!list_empty(&imp->imp_committed_list)) {
 		tmp = imp->imp_committed_list.next;
 		req = list_entry(tmp, struct ptlrpc_request, rq_replay_list);
@@ -674,7 +683,8 @@ int ptlrpc_connect_import(struct obd_import *imp)
 		goto out;
 
 	/* Reset connect flags to the originally requested flags, in case
-	 * the server is updated on-the-fly we will get the new features. */
+	 * the server is updated on-the-fly we will get the new features.
+	 */
 	imp->imp_connect_data.ocd_connect_flags = imp->imp_connect_flags_orig;
 	/* Reset ocd_version each time so the server knows the exact versions */
 	imp->imp_connect_data.ocd_version = LUSTRE_VERSION_CODE;
@@ -687,7 +697,7 @@ int ptlrpc_connect_import(struct obd_import *imp)
 		goto out;
 
 	request = ptlrpc_request_alloc(imp, &RQF_MDS_CONNECT);
-	if (request == NULL) {
+	if (!request) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -700,7 +710,8 @@ int ptlrpc_connect_import(struct obd_import *imp)
 	}
 
 	/* Report the rpc service time to the server so that it knows how long
-	 * to wait for clients to join recovery */
+	 * to wait for clients to join recovery
+	 */
 	lustre_msg_set_service_time(request->rq_reqmsg,
 				    at_timeout2est(request->rq_timeout));
 
@@ -708,7 +719,8 @@ int ptlrpc_connect_import(struct obd_import *imp)
 	 * import_select_connection will increase the net latency on
 	 * repeated reconnect attempts to cover slow networks.
 	 * We override/ignore the server rpc completion estimate here,
-	 * which may be large if this is a reconnect attempt */
+	 * which may be large if this is a reconnect attempt
+	 */
 	request->rq_timeout = INITIAL_CONNECT_TIMEOUT;
 	lustre_msg_set_timeout(request->rq_reqmsg, request->rq_timeout);
 
@@ -799,7 +811,8 @@ static int ptlrpc_connect_interpret(const struct lu_env *env,
 
 	if (rc) {
 		/* if this reconnect to busy export - not need select new target
-		 * for connecting*/
+		 * for connecting
+		 */
 		imp->imp_force_reconnect = ptlrpc_busy_reconnect(rc);
 		spin_unlock(&imp->imp_lock);
 		ptlrpc_maybe_ping_import_soon(imp);
@@ -817,7 +830,7 @@ static int ptlrpc_connect_interpret(const struct lu_env *env,
 	ocd = req_capsule_server_sized_get(&request->rq_pill,
 					   &RMF_CONNECT_DATA, ret);
 
-	if (ocd == NULL) {
+	if (!ocd) {
 		CERROR("%s: no connect data from server\n",
 		       imp->imp_obd->obd_name);
 		rc = -EPROTO;
@@ -851,7 +864,8 @@ static int ptlrpc_connect_interpret(const struct lu_env *env,
 
 	if (!exp) {
 		/* This could happen if export is cleaned during the
-		   connect attempt */
+		 * connect attempt
+		 */
 		CERROR("%s: missing export after connect\n",
 		       imp->imp_obd->obd_name);
 		rc = -ENODEV;
@@ -877,14 +891,16 @@ static int ptlrpc_connect_interpret(const struct lu_env *env,
 		}
 
 		/* if applies, adjust the imp->imp_msg_magic here
-		 * according to reply flags */
+		 * according to reply flags
+		 */
 
 		imp->imp_remote_handle =
 				*lustre_msg_get_handle(request->rq_repmsg);
 
 		/* Initial connects are allowed for clients with non-random
 		 * uuids when servers are in recovery.  Simply signal the
-		 * servers replay is complete and wait in REPLAY_WAIT. */
+		 * servers replay is complete and wait in REPLAY_WAIT.
+		 */
 		if (msg_flags & MSG_CONNECT_RECOVERING) {
 			CDEBUG(D_HA, "connect to %s during recovery\n",
 			       obd2cli_tgt(imp->imp_obd));
@@ -923,7 +939,8 @@ static int ptlrpc_connect_interpret(const struct lu_env *env,
 			 * already erased all of our state because of previous
 			 * eviction. If it is in recovery - we are safe to
 			 * participate since we can reestablish all of our state
-			 * with server again */
+			 * with server again
+			 */
 			if ((msg_flags & MSG_CONNECT_RECOVERING)) {
 				CDEBUG(level, "%s@%s changed server handle from %#llx to %#llx but is still in recovery\n",
 				       obd2cli_tgt(imp->imp_obd),
@@ -1039,7 +1056,8 @@ finish:
 		     ocd->ocd_version < LUSTRE_VERSION_CODE -
 					LUSTRE_VERSION_OFFSET_WARN)) {
 			/* Sigh, some compilers do not like #ifdef in the middle
-			   of macro arguments */
+			 * of macro arguments
+			 */
 			const char *older = "older. Consider upgrading server or downgrading client"
 				;
 			const char *newer = "newer than client version. Consider upgrading client"
@@ -1061,7 +1079,8 @@ finish:
 		 * fixup is version-limited, because we don't want to carry the
 		 * OBD_CONNECT_MNE_SWAB flag around forever, just so long as we
 		 * need interop with unpatched 2.2 servers.  For newer servers,
-		 * the client will do MNE swabbing only as needed.  LU-1644 */
+		 * the client will do MNE swabbing only as needed.  LU-1644
+		 */
 		if (unlikely((ocd->ocd_connect_flags & OBD_CONNECT_VERSION) &&
 			     !(ocd->ocd_connect_flags & OBD_CONNECT_MNE_SWAB) &&
 			     OBD_OCD_VERSION_MAJOR(ocd->ocd_version) == 2 &&
@@ -1079,7 +1098,8 @@ finish:
 		if (ocd->ocd_connect_flags & OBD_CONNECT_CKSUM) {
 			/* We sent to the server ocd_cksum_types with bits set
 			 * for algorithms we understand. The server masked off
-			 * the checksum types it doesn't support */
+			 * the checksum types it doesn't support
+			 */
 			if ((ocd->ocd_cksum_types &
 			     cksum_types_supported_client()) == 0) {
 				LCONSOLE_WARN("The negotiation of the checksum algorithm to use with server %s failed (%x/%x), disabling checksums\n",
@@ -1093,7 +1113,8 @@ finish:
 			}
 		} else {
 			/* The server does not support OBD_CONNECT_CKSUM.
-			 * Enforce ADLER for backward compatibility*/
+			 * Enforce ADLER for backward compatibility
+			 */
 			cli->cl_supp_cksum_types = OBD_CKSUM_ADLER;
 		}
 		cli->cl_cksum_type = cksum_type_select(cli->cl_supp_cksum_types);
@@ -1109,7 +1130,8 @@ finish:
 		/* Reset ns_connect_flags only for initial connect. It might be
 		 * changed in while using FS and if we reset it in reconnect
 		 * this leads to losing user settings done before such as
-		 * disable lru_resize, etc. */
+		 * disable lru_resize, etc.
+		 */
 		if (old_connect_flags != exp_connect_flags(exp) ||
 		    aa->pcaa_initial_connect) {
 			CDEBUG(D_HA, "%s: Resetting ns_connect_flags to server flags: %#llx\n",
@@ -1123,13 +1145,14 @@ finish:
 		if ((ocd->ocd_connect_flags & OBD_CONNECT_AT) &&
 		    (imp->imp_msg_magic == LUSTRE_MSG_MAGIC_V2))
 			/* We need a per-message support flag, because
-			   a. we don't know if the incoming connect reply
-			      supports AT or not (in reply_in_callback)
-			      until we unpack it.
-			   b. failovered server means export and flags are gone
-			      (in ptlrpc_send_reply).
-			   Can only be set when we know AT is supported at
-			   both ends */
+			 * a. we don't know if the incoming connect reply
+			 *    supports AT or not (in reply_in_callback)
+			 *    until we unpack it.
+			 * b. failovered server means export and flags are gone
+			 *    (in ptlrpc_send_reply).
+			 * Can only be set when we know AT is supported at
+			 * both ends
+			 */
 			imp->imp_msghdr_flags |= MSGHDR_AT_SUPPORT;
 		else
 			imp->imp_msghdr_flags &= ~MSGHDR_AT_SUPPORT;
@@ -1162,7 +1185,7 @@ out:
 			struct obd_connect_data *ocd;
 
 			/* reply message might not be ready */
-			if (request->rq_repmsg == NULL)
+			if (!request->rq_repmsg)
 				return -EPROTO;
 
 			ocd = req_capsule_server_get(&request->rq_pill,
@@ -1243,7 +1266,7 @@ static int signal_completed_replay(struct obd_import *imp)
 
 	req = ptlrpc_request_alloc_pack(imp, &RQF_OBD_PING, LUSTRE_OBD_VERSION,
 					OBD_PING);
-	if (req == NULL) {
+	if (!req) {
 		atomic_dec(&imp->imp_replay_inflight);
 		return -ENOMEM;
 	}
@@ -1339,7 +1362,8 @@ int ptlrpc_import_recovery_state_machine(struct obd_import *imp)
 		/* bug 17802:  XXX client_disconnect_export vs connect request
 		 * race. if client will evicted at this time, we start
 		 * invalidate thread without reference to import and import can
-		 * be freed at same time. */
+		 * be freed at same time.
+		 */
 		class_import_get(imp);
 		task = kthread_run(ptlrpc_invalidate_import_thread, imp,
 				     "ll_imp_inval");
@@ -1471,11 +1495,13 @@ int ptlrpc_disconnect_import(struct obd_import *imp, int noclose)
 	if (req) {
 		/* We are disconnecting, do not retry a failed DISCONNECT rpc if
 		 * it fails.  We can get through the above with a down server
-		 * if the client doesn't know the server is gone yet. */
+		 * if the client doesn't know the server is gone yet.
+		 */
 		req->rq_no_resend = 1;
 
 		/* We want client umounts to happen quickly, no matter the
-		   server state... */
+		 * server state...
+		 */
 		req->rq_timeout = min_t(int, req->rq_timeout,
 					INITIAL_CONNECT_TIMEOUT);
 
@@ -1507,9 +1533,10 @@ EXPORT_SYMBOL(ptlrpc_disconnect_import);
 extern unsigned int at_min, at_max, at_history;
 
 /* Bin into timeslices using AT_BINS bins.
-   This gives us a max of the last binlimit*AT_BINS secs without the storage,
-   but still smoothing out a return to normalcy from a slow response.
-   (E.g. remember the maximum latency in each minute of the last 4 minutes.) */
+ * This gives us a max of the last binlimit*AT_BINS secs without the storage,
+ * but still smoothing out a return to normalcy from a slow response.
+ * (E.g. remember the maximum latency in each minute of the last 4 minutes.)
+ */
 int at_measured(struct adaptive_timeout *at, unsigned int val)
 {
 	unsigned int old = at->at_current;
@@ -1523,7 +1550,8 @@ int at_measured(struct adaptive_timeout *at, unsigned int val)
 
 	if (val == 0)
 		/* 0's don't count, because we never want our timeout to
-		   drop to 0, and because 0 could mean an error */
+		 * drop to 0, and because 0 could mean an error
+		 */
 		return 0;
 
 	spin_lock(&at->at_lock);
@@ -1565,7 +1593,8 @@ int at_measured(struct adaptive_timeout *at, unsigned int val)
 
 	if (at->at_flags & AT_FLG_NOHIST)
 		/* Only keep last reported val; keeping the rest of the history
-		   for proc only */
+		 * for debugfs only
+		 */
 		at->at_current = val;
 
 	if (at_max > 0)
diff --git a/drivers/staging/lustre/lustre/ptlrpc/layout.c b/drivers/staging/lustre/lustre/ptlrpc/layout.c
index c0e613c..0e60264 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/layout.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/layout.c
@@ -118,25 +118,6 @@ static const struct req_msg_field *quotactl_only[] = {
 	&RMF_OBD_QUOTACTL
 };
 
-static const struct req_msg_field *quota_body_only[] = {
-	&RMF_PTLRPC_BODY,
-	&RMF_QUOTA_BODY
-};
-
-static const struct req_msg_field *ldlm_intent_quota_client[] = {
-	&RMF_PTLRPC_BODY,
-	&RMF_DLM_REQ,
-	&RMF_LDLM_INTENT,
-	&RMF_QUOTA_BODY
-};
-
-static const struct req_msg_field *ldlm_intent_quota_server[] = {
-	&RMF_PTLRPC_BODY,
-	&RMF_DLM_REP,
-	&RMF_DLM_LVB,
-	&RMF_QUOTA_BODY
-};
-
 static const struct req_msg_field *mdt_close_client[] = {
 	&RMF_PTLRPC_BODY,
 	&RMF_MDT_EPOCH,
@@ -514,16 +495,6 @@ static const struct req_msg_field *mds_setattr_server[] = {
 	&RMF_CAPA2
 };
 
-static const struct req_msg_field *mds_update_client[] = {
-	&RMF_PTLRPC_BODY,
-	&RMF_UPDATE,
-};
-
-static const struct req_msg_field *mds_update_server[] = {
-	&RMF_PTLRPC_BODY,
-	&RMF_UPDATE_REPLY,
-};
-
 static const struct req_msg_field *llog_origin_handle_create_client[] = {
 	&RMF_PTLRPC_BODY,
 	&RMF_LLOGD_BODY,
@@ -551,16 +522,6 @@ static const struct req_msg_field *llog_origin_handle_next_block_server[] = {
 	&RMF_EADATA
 };
 
-static const struct req_msg_field *obd_idx_read_client[] = {
-	&RMF_PTLRPC_BODY,
-	&RMF_IDX_INFO
-};
-
-static const struct req_msg_field *obd_idx_read_server[] = {
-	&RMF_PTLRPC_BODY,
-	&RMF_IDX_INFO
-};
-
 static const struct req_msg_field *ost_body_only[] = {
 	&RMF_PTLRPC_BODY,
 	&RMF_OST_BODY
@@ -676,7 +637,6 @@ static const struct req_msg_field *mdt_hsm_request[] = {
 static struct req_format *req_formats[] = {
 	&RQF_OBD_PING,
 	&RQF_OBD_SET_INFO,
-	&RQF_OBD_IDX_READ,
 	&RQF_SEC_CTX,
 	&RQF_MGS_TARGET_REG,
 	&RQF_MGS_SET_INFO,
@@ -721,7 +681,6 @@ static struct req_format *req_formats[] = {
 	&RQF_MDS_HSM_ACTION,
 	&RQF_MDS_HSM_REQUEST,
 	&RQF_MDS_SWAP_LAYOUTS,
-	&RQF_UPDATE_OBJ,
 	&RQF_QC_CALLBACK,
 	&RQF_OST_CONNECT,
 	&RQF_OST_DISCONNECT,
@@ -759,8 +718,6 @@ static struct req_format *req_formats[] = {
 	&RQF_LDLM_INTENT_CREATE,
 	&RQF_LDLM_INTENT_UNLINK,
 	&RQF_LDLM_INTENT_GETXATTR,
-	&RQF_LDLM_INTENT_QUOTA,
-	&RQF_QUOTA_DQACQ,
 	&RQF_LOG_CANCEL,
 	&RQF_LLOG_ORIGIN_HANDLE_CREATE,
 	&RQF_LLOG_ORIGIN_HANDLE_DESTROY,
@@ -899,11 +856,6 @@ struct req_msg_field RMF_OBD_QUOTACTL =
 		    lustre_swab_obd_quotactl, NULL);
 EXPORT_SYMBOL(RMF_OBD_QUOTACTL);
 
-struct req_msg_field RMF_QUOTA_BODY =
-	DEFINE_MSGF("quota_body", 0,
-		    sizeof(struct quota_body), lustre_swab_quota_body, NULL);
-EXPORT_SYMBOL(RMF_QUOTA_BODY);
-
 struct req_msg_field RMF_MDT_EPOCH =
 	DEFINE_MSGF("mdt_ioepoch", 0,
 		    sizeof(struct mdt_ioepoch), lustre_swab_mdt_ioepoch, NULL);
@@ -1105,10 +1057,6 @@ struct req_msg_field RMF_FIEMAP_VAL =
 	DEFINE_MSGF("fiemap", 0, -1, lustre_swab_fiemap, NULL);
 EXPORT_SYMBOL(RMF_FIEMAP_VAL);
 
-struct req_msg_field RMF_IDX_INFO =
-	DEFINE_MSGF("idx_info", 0, sizeof(struct idx_info),
-		    lustre_swab_idx_info, NULL);
-EXPORT_SYMBOL(RMF_IDX_INFO);
 struct req_msg_field RMF_HSM_USER_STATE =
 	DEFINE_MSGF("hsm_user_state", 0, sizeof(struct hsm_user_state),
 		    lustre_swab_hsm_user_state, NULL);
@@ -1145,15 +1093,6 @@ struct req_msg_field RMF_MDS_HSM_REQUEST =
 		    lustre_swab_hsm_request, NULL);
 EXPORT_SYMBOL(RMF_MDS_HSM_REQUEST);
 
-struct req_msg_field RMF_UPDATE = DEFINE_MSGF("update", 0, -1,
-					      lustre_swab_update_buf, NULL);
-EXPORT_SYMBOL(RMF_UPDATE);
-
-struct req_msg_field RMF_UPDATE_REPLY = DEFINE_MSGF("update_reply", 0, -1,
-						lustre_swab_update_reply_buf,
-						    NULL);
-EXPORT_SYMBOL(RMF_UPDATE_REPLY);
-
 struct req_msg_field RMF_SWAP_LAYOUTS =
 	DEFINE_MSGF("swap_layouts", 0, sizeof(struct  mdc_swap_layouts),
 		    lustre_swab_swap_layouts, NULL);
@@ -1196,12 +1135,6 @@ struct req_format RQF_OBD_SET_INFO =
 	DEFINE_REQ_FMT0("OBD_SET_INFO", obd_set_info_client, empty);
 EXPORT_SYMBOL(RQF_OBD_SET_INFO);
 
-/* Read index file through the network */
-struct req_format RQF_OBD_IDX_READ =
-	DEFINE_REQ_FMT0("OBD_IDX_READ",
-			obd_idx_read_client, obd_idx_read_server);
-EXPORT_SYMBOL(RQF_OBD_IDX_READ);
-
 struct req_format RQF_SEC_CTX =
 	DEFINE_REQ_FMT0("SEC_CTX", empty, empty);
 EXPORT_SYMBOL(RQF_SEC_CTX);
@@ -1253,16 +1186,6 @@ struct req_format RQF_QC_CALLBACK =
 	DEFINE_REQ_FMT0("QC_CALLBACK", quotactl_only, empty);
 EXPORT_SYMBOL(RQF_QC_CALLBACK);
 
-struct req_format RQF_QUOTA_DQACQ =
-	DEFINE_REQ_FMT0("QUOTA_DQACQ", quota_body_only, quota_body_only);
-EXPORT_SYMBOL(RQF_QUOTA_DQACQ);
-
-struct req_format RQF_LDLM_INTENT_QUOTA =
-	DEFINE_REQ_FMT0("LDLM_INTENT_QUOTA",
-			ldlm_intent_quota_client,
-			ldlm_intent_quota_server);
-EXPORT_SYMBOL(RQF_LDLM_INTENT_QUOTA);
-
 struct req_format RQF_MDS_GETSTATUS =
 	DEFINE_REQ_FMT0("MDS_GETSTATUS", mdt_body_only, mdt_body_capa);
 EXPORT_SYMBOL(RQF_MDS_GETSTATUS);
@@ -1357,11 +1280,6 @@ struct req_format RQF_MDS_GET_INFO =
 			mds_getinfo_server);
 EXPORT_SYMBOL(RQF_MDS_GET_INFO);
 
-struct req_format RQF_UPDATE_OBJ =
-	DEFINE_REQ_FMT0("OBJECT_UPDATE_OBJ", mds_update_client,
-			mds_update_server);
-EXPORT_SYMBOL(RQF_UPDATE_OBJ);
-
 struct req_format RQF_LDLM_ENQUEUE =
 	DEFINE_REQ_FMT0("LDLM_ENQUEUE",
 			ldlm_enqueue_client, ldlm_enqueue_lvb_server);
@@ -1712,7 +1630,7 @@ void req_capsule_init(struct req_capsule *pill,
 	 * high-priority RPC queue getting peeked at before ost_handle()
 	 * handles an OST RPC.
 	 */
-	if (req != NULL && pill == &req->rq_pill && req->rq_pill_init)
+	if (req && pill == &req->rq_pill && req->rq_pill_init)
 		return;
 
 	memset(pill, 0, sizeof(*pill));
@@ -1720,7 +1638,7 @@ void req_capsule_init(struct req_capsule *pill,
 	pill->rc_loc = location;
 	req_capsule_init_area(pill);
 
-	if (req != NULL && pill == &req->rq_pill)
+	if (req && pill == &req->rq_pill)
 		req->rq_pill_init = 1;
 }
 EXPORT_SYMBOL(req_capsule_init);
@@ -1752,7 +1670,7 @@ static struct lustre_msg *__req_msg(const struct req_capsule *pill,
  */
 void req_capsule_set(struct req_capsule *pill, const struct req_format *fmt)
 {
-	LASSERT(pill->rc_fmt == NULL || pill->rc_fmt == fmt);
+	LASSERT(!pill->rc_fmt || pill->rc_fmt == fmt);
 	LASSERT(__req_format_is_sane(fmt));
 
 	pill->rc_fmt = fmt;
@@ -1773,8 +1691,6 @@ int req_capsule_filled_sizes(struct req_capsule *pill,
 	const struct req_format *fmt = pill->rc_fmt;
 	int i;
 
-	LASSERT(fmt != NULL);
-
 	for (i = 0; i < fmt->rf_fields[loc].nr; ++i) {
 		if (pill->rc_area[loc][i] == -1) {
 			pill->rc_area[loc][i] =
@@ -1810,7 +1726,7 @@ int req_capsule_server_pack(struct req_capsule *pill)
 
 	LASSERT(pill->rc_loc == RCL_SERVER);
 	fmt = pill->rc_fmt;
-	LASSERT(fmt != NULL);
+	LASSERT(fmt);
 
 	count = req_capsule_filled_sizes(pill, RCL_SERVER);
 	rc = lustre_pack_reply(pill->rc_req, count,
@@ -1865,7 +1781,7 @@ swabber_dumper_helper(struct req_capsule *pill,
 	swabber = swabber ?: field->rmf_swabber;
 
 	if (ptlrpc_buf_need_swab(pill->rc_req, inout, offset) &&
-	    swabber != NULL && value != NULL)
+	    swabber && value)
 		do_swab = 1;
 	else
 		do_swab = 0;
@@ -1947,17 +1863,15 @@ static void *__req_capsule_get(struct req_capsule *pill,
 		[RCL_SERVER] = "server"
 	};
 
-	LASSERT(pill != NULL);
-	LASSERT(pill != LP_POISON);
 	fmt = pill->rc_fmt;
-	LASSERT(fmt != NULL);
+	LASSERT(fmt);
 	LASSERT(fmt != LP_POISON);
 	LASSERT(__req_format_is_sane(fmt));
 
 	offset = __req_capsule_offset(pill, field, loc);
 
 	msg = __req_msg(pill, loc);
-	LASSERT(msg != NULL);
+	LASSERT(msg);
 
 	getter = (field->rmf_flags & RMF_F_STRING) ?
 		(typeof(getter))lustre_msg_string : lustre_msg_buf;
@@ -1980,7 +1894,7 @@ static void *__req_capsule_get(struct req_capsule *pill,
 	}
 	value = getter(msg, offset, len);
 
-	if (value == NULL) {
+	if (!value) {
 		DEBUG_REQ(D_ERROR, pill->rc_req,
 			  "Wrong buffer for field `%s' (%d of %d) in format `%s': %d vs. %d (%s)\n",
 			  field->rmf_name, offset, lustre_msg_bufcount(msg),
@@ -2209,7 +2123,7 @@ void req_capsule_extend(struct req_capsule *pill, const struct req_format *fmt)
 
 	const struct req_format *old;
 
-	LASSERT(pill->rc_fmt != NULL);
+	LASSERT(pill->rc_fmt);
 	LASSERT(__req_format_is_sane(fmt));
 
 	old = pill->rc_fmt;
@@ -2222,7 +2136,7 @@ void req_capsule_extend(struct req_capsule *pill, const struct req_format *fmt)
 			const struct req_msg_field *ofield = FMT_FIELD(old, i, j);
 
 			/* "opaque" fields can be transmogrified */
-			if (ofield->rmf_swabber == NULL &&
+			if (!ofield->rmf_swabber &&
 			    (ofield->rmf_flags & ~RMF_F_NO_SIZE_CHECK) == 0 &&
 			    (ofield->rmf_size == -1 ||
 			    ofield->rmf_flags == RMF_F_NO_SIZE_CHECK))
@@ -2289,7 +2203,7 @@ void req_capsule_shrink(struct req_capsule *pill,
 	int offset;
 
 	fmt = pill->rc_fmt;
-	LASSERT(fmt != NULL);
+	LASSERT(fmt);
 	LASSERT(__req_format_is_sane(fmt));
 	LASSERT(req_capsule_has_field(pill, field, loc));
 	LASSERT(req_capsule_field_present(pill, field, loc));
diff --git a/drivers/staging/lustre/lustre/ptlrpc/llog_client.c b/drivers/staging/lustre/lustre/ptlrpc/llog_client.c
index e877020..a23ac5f 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/llog_client.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/llog_client.c
@@ -75,7 +75,8 @@
 } while (0)
 
 /* This is a callback from the llog_* functions.
- * Assumes caller has already pushed us into the kernel context. */
+ * Assumes caller has already pushed us into the kernel context.
+ */
 static int llog_client_open(const struct lu_env *env,
 			    struct llog_handle *lgh, struct llog_logid *logid,
 			    char *name, enum llog_open_param open_param)
@@ -93,7 +94,7 @@ static int llog_client_open(const struct lu_env *env,
 	LASSERT(lgh);
 
 	req = ptlrpc_request_alloc(imp, &RQF_LLOG_ORIGIN_HANDLE_CREATE);
-	if (req == NULL) {
+	if (!req) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -130,7 +131,7 @@ static int llog_client_open(const struct lu_env *env,
 		goto out;
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
-	if (body == NULL) {
+	if (!body) {
 		rc = -EFAULT;
 		goto out;
 	}
@@ -158,7 +159,7 @@ static int llog_client_next_block(const struct lu_env *env,
 	req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK,
 					LUSTRE_LOG_VERSION,
 					LLOG_ORIGIN_HANDLE_NEXT_BLOCK);
-	if (req == NULL) {
+	if (!req) {
 		rc = -ENOMEM;
 		goto err_exit;
 	}
@@ -179,14 +180,14 @@ static int llog_client_next_block(const struct lu_env *env,
 		goto out;
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
-	if (body == NULL) {
+	if (!body) {
 		rc = -EFAULT;
 		goto out;
 	}
 
 	/* The log records are swabbed as they are processed */
 	ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
-	if (ptr == NULL) {
+	if (!ptr) {
 		rc = -EFAULT;
 		goto out;
 	}
@@ -216,7 +217,7 @@ static int llog_client_prev_block(const struct lu_env *env,
 	req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK,
 					LUSTRE_LOG_VERSION,
 					LLOG_ORIGIN_HANDLE_PREV_BLOCK);
-	if (req == NULL) {
+	if (!req) {
 		rc = -ENOMEM;
 		goto err_exit;
 	}
@@ -236,13 +237,13 @@ static int llog_client_prev_block(const struct lu_env *env,
 		goto out;
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
-	if (body == NULL) {
+	if (!body) {
 		rc = -EFAULT;
 		goto out;
 	}
 
 	ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
-	if (ptr == NULL) {
+	if (!ptr) {
 		rc = -EFAULT;
 		goto out;
 	}
@@ -269,7 +270,7 @@ static int llog_client_read_header(const struct lu_env *env,
 	req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_READ_HEADER,
 					LUSTRE_LOG_VERSION,
 					LLOG_ORIGIN_HANDLE_READ_HEADER);
-	if (req == NULL) {
+	if (!req) {
 		rc = -ENOMEM;
 		goto err_exit;
 	}
@@ -285,7 +286,7 @@ static int llog_client_read_header(const struct lu_env *env,
 		goto out;
 
 	hdr = req_capsule_server_get(&req->rq_pill, &RMF_LLOG_LOG_HDR);
-	if (hdr == NULL) {
+	if (!hdr) {
 		rc = -EFAULT;
 		goto out;
 	}
@@ -316,8 +317,9 @@ static int llog_client_close(const struct lu_env *env,
 			     struct llog_handle *handle)
 {
 	/* this doesn't call LLOG_ORIGIN_HANDLE_CLOSE because
-	   the servers all close the file at the end of every
-	   other LLOG_ RPC. */
+	 *  the servers all close the file at the end of every
+	 * other LLOG_ RPC.
+	 */
 	return 0;
 }
 
diff --git a/drivers/staging/lustre/lustre/ptlrpc/llog_net.c b/drivers/staging/lustre/lustre/ptlrpc/llog_net.c
index dac66f5..fbccb62 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/llog_net.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/llog_net.c
@@ -58,7 +58,7 @@ int llog_initiator_connect(struct llog_ctxt *ctxt)
 
 	LASSERT(ctxt);
 	new_imp = ctxt->loc_obd->u.cli.cl_import;
-	LASSERTF(ctxt->loc_imp == NULL || ctxt->loc_imp == new_imp,
+	LASSERTF(!ctxt->loc_imp || ctxt->loc_imp == new_imp,
 		 "%p - %p\n", ctxt->loc_imp, new_imp);
 	mutex_lock(&ctxt->loc_mutex);
 	if (ctxt->loc_imp != new_imp) {
diff --git a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
index cc55b79..fcaa289 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
@@ -131,7 +131,6 @@ static struct ll_rpc_opcode {
 	{ SEC_CTX_INIT_CONT, "sec_ctx_init_cont" },
 	{ SEC_CTX_FINI,     "sec_ctx_fini" },
 	{ FLD_QUERY,	"fld_query" },
-	{ UPDATE_OBJ,	    "update_obj" },
 };
 
 static struct ll_eopcode {
@@ -192,15 +191,15 @@ ptlrpc_ldebugfs_register(struct dentry *root, char *dir,
 	unsigned int svc_counter_config = LPROCFS_CNTR_AVGMINMAX |
 					  LPROCFS_CNTR_STDDEV;
 
-	LASSERT(*debugfs_root_ret == NULL);
-	LASSERT(*stats_ret == NULL);
+	LASSERT(!*debugfs_root_ret);
+	LASSERT(!*stats_ret);
 
 	svc_stats = lprocfs_alloc_stats(EXTRA_MAX_OPCODES+LUSTRE_MAX_OPCODES,
 					0);
-	if (svc_stats == NULL)
+	if (!svc_stats)
 		return;
 
-	if (dir != NULL) {
+	if (dir) {
 		svc_debugfs_entry = ldebugfs_register(dir, root, NULL, NULL);
 		if (IS_ERR(svc_debugfs_entry)) {
 			lprocfs_free_stats(&svc_stats);
@@ -246,11 +245,11 @@ ptlrpc_ldebugfs_register(struct dentry *root, char *dir,
 
 	rc = ldebugfs_register_stats(svc_debugfs_entry, name, svc_stats);
 	if (rc < 0) {
-		if (dir != NULL)
+		if (dir)
 			ldebugfs_remove(&svc_debugfs_entry);
 		lprocfs_free_stats(&svc_stats);
 	} else {
-		if (dir != NULL)
+		if (dir)
 			*debugfs_root_ret = svc_debugfs_entry;
 		*stats_ret = svc_stats;
 	}
@@ -307,7 +306,8 @@ ptlrpc_lprocfs_req_history_max_seq_write(struct file *file,
 
 	/* This sanity check is more of an insanity check; we can still
 	 * hose a kernel by allowing the request history to grow too
-	 * far. */
+	 * far.
+	 */
 	bufpages = (svc->srv_buf_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
 	if (val > totalram_pages / (2 * bufpages))
 		return -ERANGE;
@@ -456,8 +456,6 @@ static const char *nrs_state2str(enum ptlrpc_nrs_pol_state state)
 static void nrs_policy_get_info_locked(struct ptlrpc_nrs_policy *policy,
 				struct ptlrpc_nrs_pol_info *info)
 {
-	LASSERT(policy != NULL);
-	LASSERT(info != NULL);
 	assert_spin_locked(&policy->pol_nrs->nrs_lock);
 
 	memcpy(info->pi_name, policy->pol_desc->pd_name, NRS_POL_NAME_MAX);
@@ -508,7 +506,7 @@ static int ptlrpc_lprocfs_nrs_seq_show(struct seq_file *m, void *n)
 	spin_unlock(&nrs->nrs_lock);
 
 	infos = kcalloc(num_pols, sizeof(*infos), GFP_NOFS);
-	if (infos == NULL) {
+	if (!infos) {
 		rc = -ENOMEM;
 		goto unlock;
 	}
@@ -676,7 +674,7 @@ static ssize_t ptlrpc_lprocfs_nrs_seq_write(struct file *file,
 	/**
 	 * No [reg|hp] token has been specified
 	 */
-	if (cmd == NULL)
+	if (!cmd)
 		goto default_queue;
 
 	/**
@@ -733,15 +731,15 @@ ptlrpc_lprocfs_svc_req_history_seek(struct ptlrpc_service_part *svcpt,
 	struct list_head *e;
 	struct ptlrpc_request *req;
 
-	if (srhi->srhi_req != NULL &&
-	    srhi->srhi_seq > svcpt->scp_hist_seq_culled &&
+	if (srhi->srhi_req && srhi->srhi_seq > svcpt->scp_hist_seq_culled &&
 	    srhi->srhi_seq <= seq) {
 		/* If srhi_req was set previously, hasn't been culled and
 		 * we're searching for a seq on or after it (i.e. more
 		 * recent), search from it onwards.
 		 * Since the service history is LRU (i.e. culled reqs will
 		 * be near the head), we shouldn't have to do long
-		 * re-scans */
+		 * re-scans
+		 */
 		LASSERTF(srhi->srhi_seq == srhi->srhi_req->rq_history_seq,
 			 "%s:%d: seek seq %llu, request seq %llu\n",
 			 svcpt->scp_service->srv_name, svcpt->scp_cpt,
@@ -919,7 +917,8 @@ static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
 		 * here.  The request could contain any old crap, so you
 		 * must be just as careful as the service's request
 		 * parser. Currently I only print stuff here I know is OK
-		 * to look at coz it was set up in request_in_callback()!!! */
+		 * to look at coz it was set up in request_in_callback()!!!
+		 */
 		seq_printf(s, "%lld:%s:%s:x%llu:%d:%s:%lld:%lds(%+lds) ",
 			   req->rq_history_seq, nidstr,
 			   libcfs_id2str(req->rq_peer), req->rq_xid,
@@ -927,7 +926,7 @@ static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
 			   (s64)req->rq_arrival_time.tv_sec,
 			   (long)(req->rq_sent - req->rq_arrival_time.tv_sec),
 			   (long)(req->rq_sent - req->rq_deadline));
-		if (svc->srv_ops.so_req_printer == NULL)
+		if (!svc->srv_ops.so_req_printer)
 			seq_putc(s, '\n');
 		else
 			svc->srv_ops.so_req_printer(s, srhi->srhi_req);
@@ -1103,7 +1102,7 @@ void ptlrpc_ldebugfs_register_service(struct dentry *entry,
 				 "stats", &svc->srv_debugfs_entry,
 				 &svc->srv_stats);
 
-	if (svc->srv_debugfs_entry == NULL)
+	if (IS_ERR_OR_NULL(svc->srv_debugfs_entry))
 		return;
 
 	ldebugfs_add_vars(svc->srv_debugfs_entry, lproc_vars, NULL);
@@ -1129,7 +1128,7 @@ void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req, long amount)
 	int opc = opcode_offset(op);
 
 	svc_stats = req->rq_import->imp_obd->obd_svc_stats;
-	if (svc_stats == NULL || opc <= 0)
+	if (!svc_stats || opc <= 0)
 		return;
 	LASSERT(opc < LUSTRE_MAX_OPCODES);
 	if (!(op == LDLM_ENQUEUE || op == MDS_REINT))
@@ -1166,7 +1165,7 @@ EXPORT_SYMBOL(ptlrpc_lprocfs_brw);
 
 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc)
 {
-	if (svc->srv_debugfs_entry != NULL)
+	if (!IS_ERR_OR_NULL(svc->srv_debugfs_entry))
 		ldebugfs_remove(&svc->srv_debugfs_entry);
 
 	if (svc->srv_stats)
@@ -1198,7 +1197,7 @@ int lprocfs_wr_ping(struct file *file, const char __user *buffer,
 
 	req = ptlrpc_prep_ping(obd->u.cli.cl_import);
 	up_read(&obd->u.cli.cl_sem);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	req->rq_send_state = LUSTRE_IMP_FULL;
diff --git a/drivers/staging/lustre/lustre/ptlrpc/niobuf.c b/drivers/staging/lustre/lustre/ptlrpc/niobuf.c
index c5d7ff5..c5bbf7b 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/niobuf.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/niobuf.c
@@ -56,7 +56,6 @@ static int ptl_send_buf(lnet_handle_md_t *mdh, void *base, int len,
 	lnet_md_t md;
 
 	LASSERT(portal != 0);
-	LASSERT(conn != NULL);
 	CDEBUG(D_INFO, "conn=%p id %s\n", conn, libcfs_id2str(conn->c_peer));
 	md.start = base;
 	md.length = len;
@@ -88,7 +87,8 @@ static int ptl_send_buf(lnet_handle_md_t *mdh, void *base, int len,
 		int rc2;
 		/* We're going to get an UNLINK event when I unlink below,
 		 * which will complete just like any other failed send, so
-		 * I fall through and return success here! */
+		 * I fall through and return success here!
+		 */
 		CERROR("LNetPut(%s, %d, %lld) failed: %d\n",
 		       libcfs_id2str(conn->c_peer), portal, xid, rc);
 		rc2 = LNetMDUnlink(*mdh);
@@ -130,7 +130,7 @@ static int ptlrpc_register_bulk(struct ptlrpc_request *req)
 	LASSERT(desc->bd_md_count == 0);
 	LASSERT(desc->bd_md_max_brw <= PTLRPC_BULK_OPS_COUNT);
 	LASSERT(desc->bd_iov_count <= PTLRPC_MAX_BRW_PAGES);
-	LASSERT(desc->bd_req != NULL);
+	LASSERT(desc->bd_req);
 	LASSERT(desc->bd_type == BULK_PUT_SINK ||
 		desc->bd_type == BULK_GET_SOURCE);
 
@@ -153,7 +153,8 @@ static int ptlrpc_register_bulk(struct ptlrpc_request *req)
 	 * using the same RDMA match bits after an error.
 	 *
 	 * For multi-bulk RPCs, rq_xid is the last XID needed for bulks. The
-	 * first bulk XID is power-of-two aligned before rq_xid. LU-1431 */
+	 * first bulk XID is power-of-two aligned before rq_xid. LU-1431
+	 */
 	xid = req->rq_xid & ~((__u64)desc->bd_md_max_brw - 1);
 	LASSERTF(!(desc->bd_registered &&
 		   req->rq_send_state != LUSTRE_IMP_REPLAY) ||
@@ -209,7 +210,8 @@ static int ptlrpc_register_bulk(struct ptlrpc_request *req)
 	}
 
 	/* Set rq_xid to matchbits of the final bulk so that server can
-	 * infer the number of bulks that were prepared */
+	 * infer the number of bulks that were prepared
+	 */
 	req->rq_xid = --xid;
 	LASSERTF(desc->bd_last_xid == (req->rq_xid & PTLRPC_BULK_OPS_MASK),
 		 "bd_last_xid = x%llu, rq_xid = x%llu\n",
@@ -260,7 +262,8 @@ int ptlrpc_unregister_bulk(struct ptlrpc_request *req, int async)
 	/* the unlink ensures the callback happens ASAP and is the last
 	 * one.  If it fails, it must be because completion just happened,
 	 * but we must still l_wait_event() in this case to give liblustre
-	 * a chance to run client_bulk_callback() */
+	 * a chance to run client_bulk_callback()
+	 */
 	mdunlink_iterate_helper(desc->bd_mds, desc->bd_md_max_brw);
 
 	if (ptlrpc_client_bulk_active(req) == 0)	/* completed or */
@@ -273,14 +276,15 @@ int ptlrpc_unregister_bulk(struct ptlrpc_request *req, int async)
 	if (async)
 		return 0;
 
-	if (req->rq_set != NULL)
+	if (req->rq_set)
 		wq = &req->rq_set->set_waitq;
 	else
 		wq = &req->rq_reply_waitq;
 
 	for (;;) {
 		/* Network access will complete in finite time but the HUGE
-		 * timeout lets us CWARN for visibility of sluggish NALs */
+		 * timeout lets us CWARN for visibility of sluggish LNDs
+		 */
 		lwi = LWI_TIMEOUT_INTERVAL(cfs_time_seconds(LONG_UNLINK),
 					   cfs_time_seconds(1), NULL, NULL);
 		rc = l_wait_event(*wq, !ptlrpc_client_bulk_active(req), &lwi);
@@ -305,13 +309,13 @@ static void ptlrpc_at_set_reply(struct ptlrpc_request *req, int flags)
 				 req->rq_arrival_time.tv_sec, 1);
 
 	if (!(flags & PTLRPC_REPLY_EARLY) &&
-	    (req->rq_type != PTL_RPC_MSG_ERR) &&
-	    (req->rq_reqmsg != NULL) &&
+	    (req->rq_type != PTL_RPC_MSG_ERR) && req->rq_reqmsg &&
 	    !(lustre_msg_get_flags(req->rq_reqmsg) &
 	      (MSG_RESENT | MSG_REPLAY |
 	       MSG_REQ_REPLAY_DONE | MSG_LOCK_REPLAY_DONE))) {
 		/* early replies, errors and recovery requests don't count
-		 * toward our service time estimate */
+		 * toward our service time estimate
+		 */
 		int oldse = at_measured(&svcpt->scp_at_estimate, service_time);
 
 		if (oldse != 0) {
@@ -325,7 +329,8 @@ static void ptlrpc_at_set_reply(struct ptlrpc_request *req, int flags)
 	lustre_msg_set_service_time(req->rq_repmsg, service_time);
 	/* Report service time estimate for future client reqs, but report 0
 	 * (to be ignored by client) if it's a error reply during recovery.
-	 * (bz15815) */
+	 * (bz15815)
+	 */
 	if (req->rq_type == PTL_RPC_MSG_ERR && !req->rq_export)
 		lustre_msg_set_timeout(req->rq_repmsg, 0);
 	else
@@ -360,10 +365,10 @@ int ptlrpc_send_reply(struct ptlrpc_request *req, int flags)
 	 * target_queue_final_reply().
 	 */
 	LASSERT(req->rq_no_reply == 0);
-	LASSERT(req->rq_reqbuf != NULL);
-	LASSERT(rs != NULL);
+	LASSERT(req->rq_reqbuf);
+	LASSERT(rs);
 	LASSERT((flags & PTLRPC_REPLY_MAYBE_DIFFICULT) || !rs->rs_difficult);
-	LASSERT(req->rq_repmsg != NULL);
+	LASSERT(req->rq_repmsg);
 	LASSERT(req->rq_repmsg == rs->rs_msg);
 	LASSERT(rs->rs_cb_id.cbid_fn == reply_out_callback);
 	LASSERT(rs->rs_cb_id.cbid_arg == rs);
@@ -403,12 +408,12 @@ int ptlrpc_send_reply(struct ptlrpc_request *req, int flags)
 
 	ptlrpc_at_set_reply(req, flags);
 
-	if (req->rq_export == NULL || req->rq_export->exp_connection == NULL)
+	if (!req->rq_export || !req->rq_export->exp_connection)
 		conn = ptlrpc_connection_get(req->rq_peer, req->rq_self, NULL);
 	else
 		conn = ptlrpc_connection_addref(req->rq_export->exp_connection);
 
-	if (unlikely(conn == NULL)) {
+	if (unlikely(!conn)) {
 		CERROR("not replying on NULL connection\n"); /* bug 9635 */
 		return -ENOTCONN;
 	}
@@ -498,12 +503,13 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
 	LASSERT(request->rq_wait_ctx == 0);
 
 	/* If this is a re-transmit, we're required to have disengaged
-	 * cleanly from the previous attempt */
+	 * cleanly from the previous attempt
+	 */
 	LASSERT(!request->rq_receiving_reply);
 	LASSERT(!((lustre_msg_get_flags(request->rq_reqmsg) & MSG_REPLAY) &&
 		(request->rq_import->imp_state == LUSTRE_IMP_FULL)));
 
-	if (unlikely(obd != NULL && obd->obd_fail)) {
+	if (unlikely(obd && obd->obd_fail)) {
 		CDEBUG(D_HA, "muting rpc for failed imp obd %s\n",
 			obd->obd_name);
 		/* this prevents us from waiting in ptlrpc_queue_wait */
@@ -535,7 +541,7 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
 		goto out;
 
 	/* bulk register should be done after wrap_request() */
-	if (request->rq_bulk != NULL) {
+	if (request->rq_bulk) {
 		rc = ptlrpc_register_bulk(request);
 		if (rc != 0)
 			goto out;
@@ -543,14 +549,15 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
 
 	if (!noreply) {
 		LASSERT(request->rq_replen != 0);
-		if (request->rq_repbuf == NULL) {
-			LASSERT(request->rq_repdata == NULL);
-			LASSERT(request->rq_repmsg == NULL);
+		if (!request->rq_repbuf) {
+			LASSERT(!request->rq_repdata);
+			LASSERT(!request->rq_repmsg);
 			rc = sptlrpc_cli_alloc_repbuf(request,
 						      request->rq_replen);
 			if (rc) {
 				/* this prevents us from looping in
-				 * ptlrpc_queue_wait */
+				 * ptlrpc_queue_wait
+				 */
 				spin_lock(&request->rq_lock);
 				request->rq_err = 1;
 				spin_unlock(&request->rq_lock);
@@ -602,7 +609,8 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
 		reply_md.eq_handle = ptlrpc_eq_h;
 
 		/* We must see the unlink callback to unset rq_reply_unlink,
-		   so we can't auto-unlink */
+		 * so we can't auto-unlink
+		 */
 		rc = LNetMDAttach(reply_me_h, reply_md, LNET_RETAIN,
 				  &request->rq_reply_md_h);
 		if (rc != 0) {
@@ -623,7 +631,7 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
 
 	/* add references on request for request_out_callback */
 	ptlrpc_request_addref(request);
-	if (obd != NULL && obd->obd_svc_stats != NULL)
+	if (obd && obd->obd_svc_stats)
 		lprocfs_counter_add(obd->obd_svc_stats, PTLRPC_REQACTIVE_CNTR,
 			atomic_read(&request->rq_import->imp_inflight));
 
@@ -632,7 +640,8 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
 	ktime_get_real_ts64(&request->rq_arrival_time);
 	request->rq_sent = ktime_get_real_seconds();
 	/* We give the server rq_timeout secs to process the req, and
-	   add the network latency for our local timeout. */
+	 * add the network latency for our local timeout.
+	 */
 	request->rq_deadline = request->rq_sent + request->rq_timeout +
 		ptlrpc_at_get_net_latency(request);
 
@@ -656,7 +665,8 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
  cleanup_me:
 	/* MEUnlink is safe; the PUT didn't even get off the ground, and
 	 * nobody apart from the PUT's target has the right nid+XID to
-	 * access the reply buffer. */
+	 * access the reply buffer.
+	 */
 	rc2 = LNetMEUnlink(reply_me_h);
 	LASSERT(rc2 == 0);
 	/* UNLINKED callback called synchronously */
@@ -664,7 +674,8 @@ int ptl_send_rpc(struct ptlrpc_request *request, int noreply)
 
  cleanup_bulk:
 	/* We do sync unlink here as there was no real transfer here so
-	 * the chance to have long unlink to sluggish net is smaller here. */
+	 * the chance to have long unlink to sluggish net is smaller here.
+	 */
 	ptlrpc_unregister_bulk(request, 0);
  out:
 	if (request->rq_memalloc)
@@ -692,7 +703,8 @@ int ptlrpc_register_rqbd(struct ptlrpc_request_buffer_desc *rqbd)
 
 	/* NB: CPT affinity service should use new LNet flag LNET_INS_LOCAL,
 	 * which means buffer can only be attached on local CPT, and LND
-	 * threads can find it by grabbing a local lock */
+	 * threads can find it by grabbing a local lock
+	 */
 	rc = LNetMEAttach(service->srv_req_portal,
 			  match_id, 0, ~0, LNET_UNLINK,
 			  rqbd->rqbd_svcpt->scp_cpt >= 0 ?
diff --git a/drivers/staging/lustre/lustre/ptlrpc/nrs.c b/drivers/staging/lustre/lustre/ptlrpc/nrs.c
index 57acf8c..58e5d86 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/nrs.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/nrs.c
@@ -13,10 +13,6 @@
  * GNU General Public License version 2 for more details.  A copy is
  * included in the COPYING file that accompanied this code.
 
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
  * GPL HEADER END
  */
 /*
@@ -47,9 +43,6 @@
 #include "../../include/linux/libcfs/libcfs.h"
 #include "ptlrpc_internal.h"
 
-/* XXX: This is just for liblustre. Remove the #if defined directive when the
- * "cfs_" prefix is dropped from cfs_list_head. */
-
 /**
  * NRS core object.
  */
@@ -57,7 +50,7 @@ struct nrs_core nrs_core;
 
 static int nrs_policy_init(struct ptlrpc_nrs_policy *policy)
 {
-	return policy->pol_desc->pd_ops->op_policy_init != NULL ?
+	return policy->pol_desc->pd_ops->op_policy_init ?
 	       policy->pol_desc->pd_ops->op_policy_init(policy) : 0;
 }
 
@@ -66,7 +59,7 @@ static void nrs_policy_fini(struct ptlrpc_nrs_policy *policy)
 	LASSERT(policy->pol_ref == 0);
 	LASSERT(policy->pol_req_queued == 0);
 
-	if (policy->pol_desc->pd_ops->op_policy_fini != NULL)
+	if (policy->pol_desc->pd_ops->op_policy_fini)
 		policy->pol_desc->pd_ops->op_policy_fini(policy);
 }
 
@@ -82,7 +75,7 @@ static int nrs_policy_ctl_locked(struct ptlrpc_nrs_policy *policy,
 	if (policy->pol_state == NRS_POL_STATE_STOPPED)
 		return -ENODEV;
 
-	return policy->pol_desc->pd_ops->op_policy_ctl != NULL ?
+	return policy->pol_desc->pd_ops->op_policy_ctl ?
 	       policy->pol_desc->pd_ops->op_policy_ctl(policy, opc, arg) :
 	       -ENOSYS;
 }
@@ -91,7 +84,7 @@ static void nrs_policy_stop0(struct ptlrpc_nrs_policy *policy)
 {
 	struct ptlrpc_nrs *nrs = policy->pol_nrs;
 
-	if (policy->pol_desc->pd_ops->op_policy_stop != NULL) {
+	if (policy->pol_desc->pd_ops->op_policy_stop) {
 		spin_unlock(&nrs->nrs_lock);
 
 		policy->pol_desc->pd_ops->op_policy_stop(policy);
@@ -154,7 +147,7 @@ static void nrs_policy_stop_primary(struct ptlrpc_nrs *nrs)
 {
 	struct ptlrpc_nrs_policy *tmp = nrs->nrs_policy_primary;
 
-	if (tmp == NULL)
+	if (!tmp)
 		return;
 
 	nrs->nrs_policy_primary = NULL;
@@ -220,12 +213,12 @@ static int nrs_policy_start_locked(struct ptlrpc_nrs_policy *policy)
 		 * nrs_policy_flags::PTLRPC_NRS_FL_FALLBACK flag set can
 		 * register with NRS core.
 		 */
-		LASSERT(nrs->nrs_policy_fallback == NULL);
+		LASSERT(!nrs->nrs_policy_fallback);
 	} else {
 		/**
 		 * Shouldn't start primary policy if w/o fallback policy.
 		 */
-		if (nrs->nrs_policy_fallback == NULL)
+		if (!nrs->nrs_policy_fallback)
 			return -EPERM;
 
 		if (policy->pol_state == NRS_POL_STATE_STARTED)
@@ -348,10 +341,10 @@ static void nrs_resource_put(struct ptlrpc_nrs_resource *res)
 {
 	struct ptlrpc_nrs_policy *policy = res->res_policy;
 
-	if (policy->pol_desc->pd_ops->op_res_put != NULL) {
+	if (policy->pol_desc->pd_ops->op_res_put) {
 		struct ptlrpc_nrs_resource *parent;
 
-		for (; res != NULL; res = parent) {
+		for (; res; res = parent) {
 			parent = res->res_parent;
 			policy->pol_desc->pd_ops->op_res_put(policy, res);
 		}
@@ -390,12 +383,11 @@ struct ptlrpc_nrs_resource *nrs_resource_get(struct ptlrpc_nrs_policy *policy,
 		rc = policy->pol_desc->pd_ops->op_res_get(policy, nrq, res,
 							  &tmp, moving_req);
 		if (rc < 0) {
-			if (res != NULL)
+			if (res)
 				nrs_resource_put(res);
 			return NULL;
 		}
 
-		LASSERT(tmp != NULL);
 		tmp->res_parent = res;
 		tmp->res_policy = policy;
 		res = tmp;
@@ -445,7 +437,7 @@ static void nrs_resource_get_safe(struct ptlrpc_nrs *nrs,
 	nrs_policy_get_locked(fallback);
 
 	primary = nrs->nrs_policy_primary;
-	if (primary != NULL)
+	if (primary)
 		nrs_policy_get_locked(primary);
 
 	spin_unlock(&nrs->nrs_lock);
@@ -454,9 +446,9 @@ static void nrs_resource_get_safe(struct ptlrpc_nrs *nrs,
 	 * Obtain resource hierarchy references.
 	 */
 	resp[NRS_RES_FALLBACK] = nrs_resource_get(fallback, nrq, moving_req);
-	LASSERT(resp[NRS_RES_FALLBACK] != NULL);
+	LASSERT(resp[NRS_RES_FALLBACK]);
 
-	if (primary != NULL) {
+	if (primary) {
 		resp[NRS_RES_PRIMARY] = nrs_resource_get(primary, nrq,
 							 moving_req);
 		/**
@@ -465,7 +457,7 @@ static void nrs_resource_get_safe(struct ptlrpc_nrs *nrs,
 		 * reference on the policy as it will not be used for this
 		 * request.
 		 */
-		if (resp[NRS_RES_PRIMARY] == NULL)
+		if (!resp[NRS_RES_PRIMARY])
 			nrs_policy_put(primary);
 	}
 }
@@ -485,7 +477,7 @@ static void nrs_resource_put_safe(struct ptlrpc_nrs_resource **resp)
 	int i;
 
 	for (i = 0; i < NRS_RES_MAX; i++) {
-		if (resp[i] != NULL) {
+		if (resp[i]) {
 			pols[i] = resp[i]->res_policy;
 			nrs_resource_put(resp[i]);
 			resp[i] = NULL;
@@ -526,7 +518,7 @@ struct ptlrpc_nrs_request *nrs_request_get(struct ptlrpc_nrs_policy *policy,
 
 	nrq = policy->pol_desc->pd_ops->op_req_get(policy, peek, force);
 
-	LASSERT(ergo(nrq != NULL, nrs_request_policy(nrq) == policy));
+	LASSERT(ergo(nrq, nrs_request_policy(nrq) == policy));
 
 	return nrq;
 }
@@ -552,7 +544,7 @@ static inline void nrs_request_enqueue(struct ptlrpc_nrs_request *nrq)
 	 * the preferred choice.
 	 */
 	for (i = NRS_RES_MAX - 1; i >= 0; i--) {
-		if (nrq->nr_res_ptrs[i] == NULL)
+		if (!nrq->nr_res_ptrs[i])
 			continue;
 
 		nrq->nr_res_idx = i;
@@ -622,7 +614,7 @@ static int nrs_policy_ctl(struct ptlrpc_nrs *nrs, char *name,
 	spin_lock(&nrs->nrs_lock);
 
 	policy = nrs_policy_find_locked(nrs, name);
-	if (policy == NULL) {
+	if (!policy) {
 		rc = -ENOENT;
 		goto out;
 	}
@@ -644,7 +636,7 @@ static int nrs_policy_ctl(struct ptlrpc_nrs *nrs, char *name,
 		break;
 	}
 out:
-	if (policy != NULL)
+	if (policy)
 		nrs_policy_put_locked(policy);
 
 	spin_unlock(&nrs->nrs_lock);
@@ -669,7 +661,7 @@ static int nrs_policy_unregister(struct ptlrpc_nrs *nrs, char *name)
 	spin_lock(&nrs->nrs_lock);
 
 	policy = nrs_policy_find_locked(nrs, name);
-	if (policy == NULL) {
+	if (!policy) {
 		spin_unlock(&nrs->nrs_lock);
 
 		CERROR("Can't find NRS policy %s\n", name);
@@ -702,7 +694,7 @@ static int nrs_policy_unregister(struct ptlrpc_nrs *nrs, char *name)
 
 	nrs_policy_fini(policy);
 
-	LASSERT(policy->pol_private == NULL);
+	LASSERT(!policy->pol_private);
 	kfree(policy);
 
 	return 0;
@@ -726,18 +718,16 @@ static int nrs_policy_register(struct ptlrpc_nrs *nrs,
 	struct ptlrpc_service_part *svcpt = nrs->nrs_svcpt;
 	int rc;
 
-	LASSERT(svcpt != NULL);
-	LASSERT(desc->pd_ops != NULL);
-	LASSERT(desc->pd_ops->op_res_get != NULL);
-	LASSERT(desc->pd_ops->op_req_get != NULL);
-	LASSERT(desc->pd_ops->op_req_enqueue != NULL);
-	LASSERT(desc->pd_ops->op_req_dequeue != NULL);
-	LASSERT(desc->pd_compat != NULL);
+	LASSERT(desc->pd_ops->op_res_get);
+	LASSERT(desc->pd_ops->op_req_get);
+	LASSERT(desc->pd_ops->op_req_enqueue);
+	LASSERT(desc->pd_ops->op_req_dequeue);
+	LASSERT(desc->pd_compat);
 
 	policy = kzalloc_node(sizeof(*policy), GFP_NOFS,
 			cfs_cpt_spread_node(svcpt->scp_service->srv_cptable,
 					    svcpt->scp_cpt));
-	if (policy == NULL)
+	if (!policy)
 		return -ENOMEM;
 
 	policy->pol_nrs = nrs;
@@ -757,7 +747,7 @@ static int nrs_policy_register(struct ptlrpc_nrs *nrs,
 	spin_lock(&nrs->nrs_lock);
 
 	tmp = nrs_policy_find_locked(nrs, policy->pol_desc->pd_name);
-	if (tmp != NULL) {
+	if (tmp) {
 		CERROR("NRS policy %s has been registered, can't register it for %s\n",
 		       policy->pol_desc->pd_name,
 		       svcpt->scp_service->srv_name);
@@ -947,14 +937,14 @@ static int nrs_svcpt_setup_locked(struct ptlrpc_service_part *svcpt)
 	/**
 	 * Optionally allocate a high-priority NRS head.
 	 */
-	if (svcpt->scp_service->srv_ops.so_hpreq_handler == NULL)
+	if (!svcpt->scp_service->srv_ops.so_hpreq_handler)
 		goto out;
 
 	svcpt->scp_nrs_hp =
 		kzalloc_node(sizeof(*svcpt->scp_nrs_hp), GFP_NOFS,
 			cfs_cpt_spread_node(svcpt->scp_service->srv_cptable,
 					    svcpt->scp_cpt));
-	if (svcpt->scp_nrs_hp == NULL) {
+	if (!svcpt->scp_nrs_hp) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -1079,7 +1069,7 @@ again:
 			}
 		}
 
-		if (desc->pd_ops->op_lprocfs_fini != NULL)
+		if (desc->pd_ops->op_lprocfs_fini)
 			desc->pd_ops->op_lprocfs_fini(svc);
 	}
 
@@ -1107,13 +1097,12 @@ static int ptlrpc_nrs_policy_register(struct ptlrpc_nrs_pol_conf *conf)
 	struct ptlrpc_nrs_pol_desc *desc;
 	int rc = 0;
 
-	LASSERT(conf != NULL);
-	LASSERT(conf->nc_ops != NULL);
-	LASSERT(conf->nc_compat != NULL);
+	LASSERT(conf->nc_ops);
+	LASSERT(conf->nc_compat);
 	LASSERT(ergo(conf->nc_compat == nrs_policy_compat_one,
-		conf->nc_compat_svc_name != NULL));
+		conf->nc_compat_svc_name));
 	LASSERT(ergo((conf->nc_flags & PTLRPC_NRS_FL_REG_EXTERN) != 0,
-		     conf->nc_owner != NULL));
+		     conf->nc_owner));
 
 	conf->nc_name[NRS_POL_NAME_MAX - 1] = '\0';
 
@@ -1136,7 +1125,7 @@ static int ptlrpc_nrs_policy_register(struct ptlrpc_nrs_pol_conf *conf)
 
 	mutex_lock(&nrs_core.nrs_mutex);
 
-	if (nrs_policy_find_desc_locked(conf->nc_name) != NULL) {
+	if (nrs_policy_find_desc_locked(conf->nc_name)) {
 		CERROR("NRS: failing to register policy %s which has already been registered with NRS core!\n",
 		       conf->nc_name);
 		rc = -EEXIST;
@@ -1214,7 +1203,7 @@ again:
 		 * No need to take a reference to other modules here, as we
 		 * will be calling from the module's init() function.
 		 */
-		if (desc->pd_ops->op_lprocfs_init != NULL) {
+		if (desc->pd_ops->op_lprocfs_init) {
 			rc = desc->pd_ops->op_lprocfs_init(svc);
 			if (rc != 0) {
 				rc2 = nrs_policy_unregister_locked(desc);
@@ -1278,7 +1267,7 @@ int ptlrpc_service_nrs_setup(struct ptlrpc_service *svc)
 		if (!nrs_policy_compatible(svc, desc))
 			continue;
 
-		if (desc->pd_ops->op_lprocfs_init != NULL) {
+		if (desc->pd_ops->op_lprocfs_init) {
 			rc = desc->pd_ops->op_lprocfs_init(svc);
 			if (rc != 0)
 				goto failed;
@@ -1319,7 +1308,7 @@ void ptlrpc_service_nrs_cleanup(struct ptlrpc_service *svc)
 		if (!nrs_policy_compatible(svc, desc))
 			continue;
 
-		if (desc->pd_ops->op_lprocfs_fini != NULL)
+		if (desc->pd_ops->op_lprocfs_fini)
 			desc->pd_ops->op_lprocfs_fini(svc);
 	}
 
@@ -1366,7 +1355,8 @@ void ptlrpc_nrs_req_finalize(struct ptlrpc_request *req)
 	if (req->rq_nrq.nr_initialized) {
 		nrs_resource_put_safe(req->rq_nrq.nr_res_ptrs);
 		/* no protection on bit nr_initialized because no
-		 * contention at this late stage */
+		 * contention at this late stage
+		 */
 		req->rq_nrq.nr_finalized = 1;
 	}
 }
@@ -1459,7 +1449,7 @@ ptlrpc_nrs_req_get_nolock0(struct ptlrpc_service_part *svcpt, bool hp,
 	list_for_each_entry(policy, &nrs->nrs_policy_queued,
 				pol_list_queued) {
 		nrq = nrs_request_get(policy, peek, force);
-		if (nrq != NULL) {
+		if (nrq) {
 			if (likely(!peek)) {
 				nrq->nr_started = 1;
 
diff --git a/drivers/staging/lustre/lustre/ptlrpc/nrs_fifo.c b/drivers/staging/lustre/lustre/ptlrpc/nrs_fifo.c
index 8e21f0c..0d8da35 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/nrs_fifo.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/nrs_fifo.c
@@ -13,10 +13,6 @@
  * GNU General Public License version 2 for more details.  A copy is
  * included in the COPYING file that accompanied this code.
 
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
  * GPL HEADER END
  */
 /*
@@ -83,7 +79,7 @@ static int nrs_fifo_start(struct ptlrpc_nrs_policy *policy)
 	head = kzalloc_node(sizeof(*head), GFP_NOFS,
 			    cfs_cpt_spread_node(nrs_pol2cptab(policy),
 						nrs_pol2cptid(policy)));
-	if (head == NULL)
+	if (!head)
 		return -ENOMEM;
 
 	INIT_LIST_HEAD(&head->fh_list);
@@ -104,7 +100,7 @@ static void nrs_fifo_stop(struct ptlrpc_nrs_policy *policy)
 {
 	struct nrs_fifo_head *head = policy->pol_private;
 
-	LASSERT(head != NULL);
+	LASSERT(head);
 	LASSERT(list_empty(&head->fh_list));
 
 	kfree(head);
@@ -169,7 +165,7 @@ struct ptlrpc_nrs_request *nrs_fifo_req_get(struct ptlrpc_nrs_policy *policy,
 	      list_entry(head->fh_list.next, struct ptlrpc_nrs_request,
 			     nr_u.fifo.fr_list);
 
-	if (likely(!peek && nrq != NULL)) {
+	if (likely(!peek && nrq)) {
 		struct ptlrpc_request *req = container_of(nrq,
 							  struct ptlrpc_request,
 							  rq_nrq);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
index f3cb518..f3ac810 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
@@ -133,7 +133,8 @@ EXPORT_SYMBOL(lustre_msg_size_v2);
  * NOTE: this should only be used for NEW requests, and should always be
  *       in the form of a v2 request.  If this is a connection to a v1
  *       target then the first buffer will be stripped because the ptlrpc
- *       data is part of the lustre_msg_v1 header. b=14043 */
+ *       data is part of the lustre_msg_v1 header. b=14043
+ */
 int lustre_msg_size(__u32 magic, int count, __u32 *lens)
 {
 	__u32 size[] = { sizeof(struct ptlrpc_body) };
@@ -157,7 +158,8 @@ int lustre_msg_size(__u32 magic, int count, __u32 *lens)
 EXPORT_SYMBOL(lustre_msg_size);
 
 /* This is used to determine the size of a buffer that was already packed
- * and will correctly handle the different message formats. */
+ * and will correctly handle the different message formats.
+ */
 int lustre_packed_msg_size(struct lustre_msg *msg)
 {
 	switch (msg->lm_magic) {
@@ -183,7 +185,7 @@ void lustre_init_msg_v2(struct lustre_msg_v2 *msg, int count, __u32 *lens,
 	for (i = 0; i < count; i++)
 		msg->lm_buflens[i] = lens[i];
 
-	if (bufs == NULL)
+	if (!bufs)
 		return;
 
 	ptr = (char *)msg + lustre_msg_hdr_size_v2(count);
@@ -267,7 +269,8 @@ lustre_get_emerg_rs(struct ptlrpc_service_part *svcpt)
 
 		spin_unlock(&svcpt->scp_rep_lock);
 		/* If we cannot get anything for some long time, we better
-		 * bail out instead of waiting infinitely */
+		 * bail out instead of waiting infinitely
+		 */
 		lwi = LWI_TIMEOUT(cfs_time_seconds(10), NULL, NULL);
 		rc = l_wait_event(svcpt->scp_rep_waitq,
 				  !list_empty(&svcpt->scp_rep_idle), &lwi);
@@ -306,7 +309,7 @@ int lustre_pack_reply_v2(struct ptlrpc_request *req, int count,
 	struct ptlrpc_reply_state *rs;
 	int msg_len, rc;
 
-	LASSERT(req->rq_reply_state == NULL);
+	LASSERT(!req->rq_reply_state);
 
 	if ((flags & LPRFL_EARLY_REPLY) == 0) {
 		spin_lock(&req->rq_lock);
@@ -383,7 +386,6 @@ void *lustre_msg_buf_v2(struct lustre_msg_v2 *m, int n, int min_size)
 {
 	int i, offset, buflen, bufcount;
 
-	LASSERT(m != NULL);
 	LASSERT(n >= 0);
 
 	bufcount = m->lm_bufcount;
@@ -488,7 +490,7 @@ void lustre_free_reply_state(struct ptlrpc_reply_state *rs)
 	LASSERT(!rs->rs_difficult || rs->rs_handled);
 	LASSERT(!rs->rs_on_net);
 	LASSERT(!rs->rs_scheduled);
-	LASSERT(rs->rs_export == NULL);
+	LASSERT(!rs->rs_export);
 	LASSERT(rs->rs_nlocks == 0);
 	LASSERT(list_empty(&rs->rs_exp_list));
 	LASSERT(list_empty(&rs->rs_obd_list));
@@ -677,7 +679,8 @@ int lustre_msg_buflen(struct lustre_msg *m, int n)
 EXPORT_SYMBOL(lustre_msg_buflen);
 
 /* NB return the bufcount for lustre_msg_v2 format, so if message is packed
- * in V1 format, the result is one bigger. (add struct ptlrpc_body). */
+ * in V1 format, the result is one bigger. (add struct ptlrpc_body).
+ */
 int lustre_msg_bufcount(struct lustre_msg *m)
 {
 	switch (m->lm_magic) {
@@ -705,7 +708,7 @@ char *lustre_msg_string(struct lustre_msg *m, int index, int max_len)
 		LASSERTF(0, "incorrect message magic: %08x\n", m->lm_magic);
 	}
 
-	if (str == NULL) {
+	if (!str) {
 		CERROR("can't unpack string in msg %p buffer[%d]\n", m, index);
 		return NULL;
 	}
@@ -740,7 +743,6 @@ static inline void *__lustre_swab_buf(struct lustre_msg *msg, int index,
 {
 	void *ptr = NULL;
 
-	LASSERT(msg != NULL);
 	switch (msg->lm_magic) {
 	case LUSTRE_MSG_MAGIC_V2:
 		ptr = lustre_msg_buf_v2(msg, index, min_size);
@@ -799,7 +801,8 @@ __u32 lustre_msg_get_flags(struct lustre_msg *msg)
 	/* no break */
 	default:
 		/* flags might be printed in debug code while message
-		 * uninitialized */
+		 * uninitialized
+		 */
 		return 0;
 	}
 }
@@ -1032,7 +1035,8 @@ int lustre_msg_get_status(struct lustre_msg *msg)
 	/* no break */
 	default:
 		/* status might be printed in debug code while message
-		 * uninitialized */
+		 * uninitialized
+		 */
 		return -EINVAL;
 	}
 }
@@ -1368,7 +1372,8 @@ void lustre_msg_set_jobid(struct lustre_msg *msg, char *jobid)
 		struct ptlrpc_body *pb;
 
 		/* Don't set jobid for ldlm ast RPCs, they've been shrunk.
-		 * See the comment in ptlrpc_request_pack(). */
+		 * See the comment in ptlrpc_request_pack().
+		 */
 		if (!opc || opc == LDLM_BL_CALLBACK ||
 		    opc == LDLM_CP_CALLBACK || opc == LDLM_GL_CALLBACK)
 			return;
@@ -1377,7 +1382,7 @@ void lustre_msg_set_jobid(struct lustre_msg *msg, char *jobid)
 				       sizeof(struct ptlrpc_body));
 		LASSERTF(pb, "invalid msg %p: no ptlrpc body!\n", msg);
 
-		if (jobid != NULL)
+		if (jobid)
 			memcpy(pb->pb_jobid, jobid, JOBSTATS_JOBID_SIZE);
 		else if (pb->pb_jobid[0] == '\0')
 			lustre_get_jobid(pb->pb_jobid);
@@ -1427,7 +1432,7 @@ int do_set_info_async(struct obd_import *imp,
 	int rc;
 
 	req = ptlrpc_request_alloc(imp, &RQF_OBD_SET_INFO);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_KEY,
@@ -1488,7 +1493,8 @@ void lustre_swab_ptlrpc_body(struct ptlrpc_body *b)
 	 * clients and servers without ptlrpc_body_v2 (< 2.3)
 	 * do not swab any fields beyond pb_jobid, as we are
 	 * using this swab function for both ptlrpc_body
-	 * and ptlrpc_body_v2. */
+	 * and ptlrpc_body_v2.
+	 */
 	CLASSERT(offsetof(typeof(*b), pb_jobid) != 0);
 }
 EXPORT_SYMBOL(lustre_swab_ptlrpc_body);
@@ -1502,7 +1508,8 @@ void lustre_swab_connect(struct obd_connect_data *ocd)
 	__swab32s(&ocd->ocd_index);
 	__swab32s(&ocd->ocd_brw_size);
 	/* ocd_blocksize and ocd_inodespace don't need to be swabbed because
-	 * they are 8-byte values */
+	 * they are 8-byte values
+	 */
 	__swab16s(&ocd->ocd_grant_extent);
 	__swab32s(&ocd->ocd_unused);
 	__swab64s(&ocd->ocd_transno);
@@ -1512,7 +1519,8 @@ void lustre_swab_connect(struct obd_connect_data *ocd)
 	/* Fields after ocd_cksum_types are only accessible by the receiver
 	 * if the corresponding flag in ocd_connect_flags is set. Accessing
 	 * any field after ocd_maxbytes on the receiver without a valid flag
-	 * may result in out-of-bound memory access and kernel oops. */
+	 * may result in out-of-bound memory access and kernel oops.
+	 */
 	if (ocd->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)
 		__swab32s(&ocd->ocd_max_easize);
 	if (ocd->ocd_connect_flags & OBD_CONNECT_MAXBYTES)
@@ -1848,20 +1856,6 @@ void lustre_swab_fiemap(struct ll_user_fiemap *fiemap)
 }
 EXPORT_SYMBOL(lustre_swab_fiemap);
 
-void lustre_swab_idx_info(struct idx_info *ii)
-{
-	__swab32s(&ii->ii_magic);
-	__swab32s(&ii->ii_flags);
-	__swab16s(&ii->ii_count);
-	__swab32s(&ii->ii_attrs);
-	lustre_swab_lu_fid(&ii->ii_fid);
-	__swab64s(&ii->ii_version);
-	__swab64s(&ii->ii_hash_start);
-	__swab64s(&ii->ii_hash_end);
-	__swab16s(&ii->ii_keysize);
-	__swab16s(&ii->ii_recsize);
-}
-
 void lustre_swab_mdt_rec_reint (struct mdt_rec_reint *rr)
 {
 	__swab32s(&rr->rr_opcode);
@@ -1986,7 +1980,8 @@ static void lustre_swab_ldlm_policy_data(ldlm_wire_policy_data_t *d)
 {
 	/* the lock data is a union and the first two fields are always an
 	 * extent so it's ok to process an LDLM_EXTENT and LDLM_FLOCK lock
-	 * data the same way. */
+	 * data the same way.
+	 */
 	__swab64s(&d->l_extent.start);
 	__swab64s(&d->l_extent.end);
 	__swab64s(&d->l_extent.gid);
@@ -2035,16 +2030,6 @@ void lustre_swab_ldlm_reply(struct ldlm_reply *r)
 }
 EXPORT_SYMBOL(lustre_swab_ldlm_reply);
 
-void lustre_swab_quota_body(struct quota_body *b)
-{
-	lustre_swab_lu_fid(&b->qb_fid);
-	lustre_swab_lu_fid((struct lu_fid *)&b->qb_id);
-	__swab32s(&b->qb_flags);
-	__swab64s(&b->qb_count);
-	__swab64s(&b->qb_usage);
-	__swab64s(&b->qb_slv_ver);
-}
-
 /* Dump functions */
 void dump_ioo(struct obd_ioobj *ioo)
 {
@@ -2288,24 +2273,6 @@ void lustre_swab_hsm_request(struct hsm_request *hr)
 }
 EXPORT_SYMBOL(lustre_swab_hsm_request);
 
-void lustre_swab_update_buf(struct update_buf *ub)
-{
-	__swab32s(&ub->ub_magic);
-	__swab32s(&ub->ub_count);
-}
-EXPORT_SYMBOL(lustre_swab_update_buf);
-
-void lustre_swab_update_reply_buf(struct update_reply *ur)
-{
-	int i;
-
-	__swab32s(&ur->ur_version);
-	__swab32s(&ur->ur_count);
-	for (i = 0; i < ur->ur_count; i++)
-		__swab32s(&ur->ur_lens[i]);
-}
-EXPORT_SYMBOL(lustre_swab_update_reply_buf);
-
 void lustre_swab_swap_layouts(struct mdc_swap_layouts *msl)
 {
 	__swab64s(&msl->msl_flags);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/pinger.c b/drivers/staging/lustre/lustre/ptlrpc/pinger.c
index fb2d523..44bf026 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pinger.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pinger.c
@@ -68,7 +68,7 @@ int ptlrpc_obd_ping(struct obd_device *obd)
 	struct ptlrpc_request *req;
 
 	req = ptlrpc_prep_ping(obd->u.cli.cl_import);
-	if (req == NULL)
+	if (!req)
 		return -ENOMEM;
 
 	req->rq_send_state = LUSTRE_IMP_FULL;
@@ -86,7 +86,7 @@ static int ptlrpc_ping(struct obd_import *imp)
 	struct ptlrpc_request *req;
 
 	req = ptlrpc_prep_ping(imp);
-	if (req == NULL) {
+	if (!req) {
 		CERROR("OOM trying to ping %s->%s\n",
 		       imp->imp_obd->obd_uuid.uuid,
 		       obd2cli_tgt(imp->imp_obd));
@@ -257,11 +257,12 @@ static int ptlrpc_pinger_main(void *arg)
 		/* Wait until the next ping time, or until we're stopped. */
 		time_to_next_wake = pinger_check_timeout(this_ping);
 		/* The ping sent by ptlrpc_send_rpc may get sent out
-		   say .01 second after this.
-		   ptlrpc_pinger_sending_on_import will then set the
-		   next ping time to next_ping + .01 sec, which means
-		   we will SKIP the next ping at next_ping, and the
-		   ping will get sent 2 timeouts from now!  Beware. */
+		 * say .01 second after this.
+		 * ptlrpc_pinger_sending_on_import will then set the
+		 * next ping time to next_ping + .01 sec, which means
+		 * we will SKIP the next ping at next_ping, and the
+		 * ping will get sent 2 timeouts from now!  Beware.
+		 */
 		CDEBUG(D_INFO, "next wakeup in " CFS_DURATION_T " (%ld)\n",
 		       time_to_next_wake,
 		       cfs_time_add(this_ping,
@@ -293,6 +294,7 @@ static struct ptlrpc_thread pinger_thread;
 int ptlrpc_start_pinger(void)
 {
 	struct l_wait_info lwi = { 0 };
+	struct task_struct *task;
 	int rc;
 
 	if (!thread_is_init(&pinger_thread) &&
@@ -303,10 +305,11 @@ int ptlrpc_start_pinger(void)
 
 	strcpy(pinger_thread.t_name, "ll_ping");
 
-	rc = PTR_ERR(kthread_run(ptlrpc_pinger_main, &pinger_thread,
-				 "%s", pinger_thread.t_name));
-	if (IS_ERR_VALUE(rc)) {
-		CERROR("cannot start thread: %d\n", rc);
+	task = kthread_run(ptlrpc_pinger_main, &pinger_thread,
+			   pinger_thread.t_name);
+	if (IS_ERR(task)) {
+		rc = PTR_ERR(task);
+		CERROR("cannot start pinger thread: rc = %d\n", rc);
 		return rc;
 	}
 	l_wait_event(pinger_thread.t_ctl_waitq,
@@ -489,7 +492,6 @@ int ptlrpc_del_timeout_client(struct list_head *obd_list,
 			break;
 		}
 	}
-	LASSERTF(ti != NULL, "ti is NULL !\n");
 	if (list_empty(&ti->ti_obd_list)) {
 		list_del(&ti->ti_chain);
 		kfree(ti);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
index 8f67e05..6ca26c9 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
+++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
@@ -101,8 +101,6 @@ struct nrs_core {
 	 * registration/unregistration, and NRS core lprocfs operations.
 	 */
 	struct mutex nrs_mutex;
-	/* XXX: This is just for liblustre. Remove the #if defined directive
-	 * when the * "cfs_" prefix is dropped from cfs_list_head. */
 	/**
 	 * List of all policy descriptors registered with NRS core; protected
 	 * by nrs_core::nrs_mutex.
diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
index 60fb0ce..0c36663 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
@@ -163,8 +163,6 @@ void ptlrpcd_wake(struct ptlrpc_request *req)
 {
 	struct ptlrpc_request_set *rq_set = req->rq_set;
 
-	LASSERT(rq_set != NULL);
-
 	wake_up(&rq_set->set_waitq);
 }
 EXPORT_SYMBOL(ptlrpcd_wake);
@@ -176,7 +174,7 @@ ptlrpcd_select_pc(struct ptlrpc_request *req)
 	int		cpt;
 	int		idx;
 
-	if (req != NULL && req->rq_send_state != LUSTRE_IMP_FULL)
+	if (req && req->rq_send_state != LUSTRE_IMP_FULL)
 		return &ptlrpcd_rcv;
 
 	cpt = cfs_cpt_current(cfs_cpt_table, 1);
@@ -240,10 +238,11 @@ void ptlrpcd_add_req(struct ptlrpc_request *req)
 
 		req->rq_invalid_rqset = 0;
 		spin_unlock(&req->rq_lock);
-		l_wait_event(req->rq_set_waitq, (req->rq_set == NULL), &lwi);
+		l_wait_event(req->rq_set_waitq, !req->rq_set, &lwi);
 	} else if (req->rq_set) {
 		/* If we have a valid "rq_set", just reuse it to avoid double
-		 * linked. */
+		 * linked.
+		 */
 		LASSERT(req->rq_phase == RQ_PHASE_NEW);
 		LASSERT(req->rq_send_state == LUSTRE_IMP_REPLAY);
 
@@ -321,7 +320,8 @@ static int ptlrpcd_check(struct lu_env *env, struct ptlrpcd_ctl *pc)
 		rc |= ptlrpc_check_set(env, set);
 
 	/* NB: ptlrpc_check_set has already moved completed request at the
-	 * head of seq::set_requests */
+	 * head of seq::set_requests
+	 */
 	list_for_each_safe(pos, tmp, &set->set_requests) {
 		req = list_entry(pos, struct ptlrpc_request, rq_set_chain);
 		if (req->rq_phase != RQ_PHASE_COMPLETE)
@@ -339,7 +339,8 @@ static int ptlrpcd_check(struct lu_env *env, struct ptlrpcd_ctl *pc)
 		rc = atomic_read(&set->set_new_count);
 
 		/* If we have nothing to do, check whether we can take some
-		 * work from our partner threads. */
+		 * work from our partner threads.
+		 */
 		if (rc == 0 && pc->pc_npartners > 0) {
 			struct ptlrpcd_ctl *partner;
 			struct ptlrpc_request_set *ps;
@@ -349,12 +350,12 @@ static int ptlrpcd_check(struct lu_env *env, struct ptlrpcd_ctl *pc)
 				partner = pc->pc_partners[pc->pc_cursor++];
 				if (pc->pc_cursor >= pc->pc_npartners)
 					pc->pc_cursor = 0;
-				if (partner == NULL)
+				if (!partner)
 					continue;
 
 				spin_lock(&partner->pc_lock);
 				ps = partner->pc_set;
-				if (ps == NULL) {
+				if (!ps) {
 					spin_unlock(&partner->pc_lock);
 					continue;
 				}
@@ -580,7 +581,7 @@ int ptlrpcd_start(struct ptlrpcd_ctl *pc)
 	return 0;
 
 out_set:
-	if (pc->pc_set != NULL) {
+	if (pc->pc_set) {
 		struct ptlrpc_request_set *set = pc->pc_set;
 
 		spin_lock(&pc->pc_lock);
@@ -631,7 +632,7 @@ void ptlrpcd_free(struct ptlrpcd_ctl *pc)
 
 out:
 	if (pc->pc_npartners > 0) {
-		LASSERT(pc->pc_partners != NULL);
+		LASSERT(pc->pc_partners);
 
 		kfree(pc->pc_partners);
 		pc->pc_partners = NULL;
@@ -645,7 +646,7 @@ static void ptlrpcd_fini(void)
 	int i;
 	int j;
 
-	if (ptlrpcds != NULL) {
+	if (ptlrpcds) {
 		for (i = 0; i < ptlrpcds_num; i++) {
 			if (!ptlrpcds[i])
 				break;
diff --git a/drivers/staging/lustre/lustre/ptlrpc/recover.c b/drivers/staging/lustre/lustre/ptlrpc/recover.c
index db6626c..e5d344d 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/recover.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/recover.c
@@ -114,7 +114,8 @@ int ptlrpc_replay_next(struct obd_import *imp, int *inflight)
 		if (req->rq_transno > last_transno) {
 			/* Since the imp_committed_list is immutable before
 			 * all of it's requests being replayed, it's safe to
-			 * use a cursor to accelerate the search */
+			 * use a cursor to accelerate the search
+			 */
 			imp->imp_replay_cursor = imp->imp_replay_cursor->next;
 
 			while (imp->imp_replay_cursor !=
@@ -137,8 +138,9 @@ int ptlrpc_replay_next(struct obd_import *imp, int *inflight)
 	}
 
 	/* All the requests in committed list have been replayed, let's replay
-	 * the imp_replay_list */
-	if (req == NULL) {
+	 * the imp_replay_list
+	 */
+	if (!req) {
 		list_for_each_safe(tmp, pos, &imp->imp_replay_list) {
 			req = list_entry(tmp, struct ptlrpc_request,
 					 rq_replay_list);
@@ -152,15 +154,16 @@ int ptlrpc_replay_next(struct obd_import *imp, int *inflight)
 	/* If need to resend the last sent transno (because a reconnect
 	 * has occurred), then stop on the matching req and send it again.
 	 * If, however, the last sent transno has been committed then we
-	 * continue replay from the next request. */
-	if (req != NULL && imp->imp_resend_replay)
+	 * continue replay from the next request.
+	 */
+	if (req && imp->imp_resend_replay)
 		lustre_msg_add_flags(req->rq_reqmsg, MSG_RESENT);
 
 	spin_lock(&imp->imp_lock);
 	imp->imp_resend_replay = 0;
 	spin_unlock(&imp->imp_lock);
 
-	if (req != NULL) {
+	if (req) {
 		rc = ptlrpc_replay_req(req);
 		if (rc) {
 			CERROR("recovery replay error %d for req %llu\n",
@@ -249,7 +252,8 @@ void ptlrpc_request_handle_notconn(struct ptlrpc_request *failed_req)
 	}
 
 	/* Wait for recovery to complete and resend. If evicted, then
-	   this request will be errored out later.*/
+	 * this request will be errored out later.
+	 */
 	spin_lock(&failed_req->rq_lock);
 	if (!failed_req->rq_no_resend)
 		failed_req->rq_resend = 1;
@@ -260,7 +264,7 @@ void ptlrpc_request_handle_notconn(struct ptlrpc_request *failed_req)
  * Administratively active/deactive a client.
  * This should only be called by the ioctl interface, currently
  *  - the lctl deactivate and activate commands
- *  - echo 0/1 >> /proc/osc/XXX/active
+ *  - echo 0/1 >> /sys/fs/lustre/osc/XXX/active
  *  - client umount -f (ll_umount_begin)
  */
 int ptlrpc_set_import_active(struct obd_import *imp, int active)
@@ -271,13 +275,15 @@ int ptlrpc_set_import_active(struct obd_import *imp, int active)
 	LASSERT(obd);
 
 	/* When deactivating, mark import invalid, and abort in-flight
-	 * requests. */
+	 * requests.
+	 */
 	if (!active) {
 		LCONSOLE_WARN("setting import %s INACTIVE by administrator request\n",
 			      obd2cli_tgt(imp->imp_obd));
 
 		/* set before invalidate to avoid messages about imp_inval
-		 * set without imp_deactive in ptlrpc_import_delay_req */
+		 * set without imp_deactive in ptlrpc_import_delay_req
+		 */
 		spin_lock(&imp->imp_lock);
 		imp->imp_deactive = 1;
 		spin_unlock(&imp->imp_lock);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec.c b/drivers/staging/lustre/lustre/ptlrpc/sec.c
index 39f5261..85f8f7c 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec.c
@@ -94,7 +94,7 @@ int sptlrpc_unregister_policy(struct ptlrpc_sec_policy *policy)
 	LASSERT(number < SPTLRPC_POLICY_MAX);
 
 	write_lock(&policy_lock);
-	if (unlikely(policies[number] == NULL)) {
+	if (unlikely(!policies[number])) {
 		write_unlock(&policy_lock);
 		CERROR("%s: already unregistered\n", policy->sp_name);
 		return -EINVAL;
@@ -126,11 +126,11 @@ struct ptlrpc_sec_policy *sptlrpc_wireflavor2policy(__u32 flavor)
 		policy = policies[number];
 		if (policy && !try_module_get(policy->sp_owner))
 			policy = NULL;
-		if (policy == NULL)
+		if (!policy)
 			flag = atomic_read(&loaded);
 		read_unlock(&policy_lock);
 
-		if (policy != NULL || flag != 0 ||
+		if (policy || flag != 0 ||
 		    number != SPTLRPC_POLICY_GSS)
 			break;
 
@@ -327,7 +327,7 @@ static int import_sec_validate_get(struct obd_import *imp,
 	}
 
 	*sec = sptlrpc_import_sec_ref(imp);
-	if (*sec == NULL) {
+	if (!*sec) {
 		CERROR("import %p (%s) with no sec\n",
 		       imp, ptlrpc_import_state_name(imp->imp_state));
 		return -EACCES;
@@ -429,7 +429,7 @@ int sptlrpc_req_ctx_switch(struct ptlrpc_request *req,
 	reqmsg_size = req->rq_reqlen;
 	if (reqmsg_size != 0) {
 		reqmsg = libcfs_kvzalloc(reqmsg_size, GFP_NOFS);
-		if (reqmsg == NULL)
+		if (!reqmsg)
 			return -ENOMEM;
 		memcpy(reqmsg, req->rq_reqmsg, reqmsg_size);
 	}
@@ -445,7 +445,8 @@ int sptlrpc_req_ctx_switch(struct ptlrpc_request *req,
 
 	/* alloc new request buffer
 	 * we don't need to alloc reply buffer here, leave it to the
-	 * rest procedure of ptlrpc */
+	 * rest procedure of ptlrpc
+	 */
 	if (reqmsg_size != 0) {
 		rc = sptlrpc_cli_alloc_reqbuf(req, reqmsg_size);
 		if (!rc) {
@@ -798,7 +799,8 @@ void sptlrpc_req_set_flavor(struct ptlrpc_request *req, int opcode)
 	spin_unlock(&sec->ps_lock);
 
 	/* force SVC_NULL for context initiation rpc, SVC_INTG for context
-	 * destruction rpc */
+	 * destruction rpc
+	 */
 	if (unlikely(req->rq_ctx_init))
 		flvr_set_svc(&req->rq_flvr.sf_rpc, SPTLRPC_SVC_NULL);
 	else if (unlikely(req->rq_ctx_fini))
@@ -938,7 +940,7 @@ static int do_cli_unwrap_reply(struct ptlrpc_request *req)
 	LASSERT(ctx->cc_sec);
 	LASSERT(req->rq_repbuf);
 	LASSERT(req->rq_repdata);
-	LASSERT(req->rq_repmsg == NULL);
+	LASSERT(!req->rq_repmsg);
 
 	req->rq_rep_swab_mask = 0;
 
@@ -1000,8 +1002,8 @@ static int do_cli_unwrap_reply(struct ptlrpc_request *req)
 int sptlrpc_cli_unwrap_reply(struct ptlrpc_request *req)
 {
 	LASSERT(req->rq_repbuf);
-	LASSERT(req->rq_repdata == NULL);
-	LASSERT(req->rq_repmsg == NULL);
+	LASSERT(!req->rq_repdata);
+	LASSERT(!req->rq_repmsg);
 	LASSERT(req->rq_reply_off + req->rq_nob_received <= req->rq_repbuf_len);
 
 	if (req->rq_reply_off == 0 &&
@@ -1046,13 +1048,13 @@ int sptlrpc_cli_unwrap_early_reply(struct ptlrpc_request *req,
 	int rc;
 
 	early_req = ptlrpc_request_cache_alloc(GFP_NOFS);
-	if (early_req == NULL)
+	if (!early_req)
 		return -ENOMEM;
 
 	early_size = req->rq_nob_received;
 	early_bufsz = size_roundup_power2(early_size);
 	early_buf = libcfs_kvzalloc(early_bufsz, GFP_NOFS);
-	if (early_buf == NULL) {
+	if (!early_buf) {
 		rc = -ENOMEM;
 		goto err_req;
 	}
@@ -1067,8 +1069,8 @@ int sptlrpc_cli_unwrap_early_reply(struct ptlrpc_request *req,
 	}
 
 	LASSERT(req->rq_repbuf);
-	LASSERT(req->rq_repdata == NULL);
-	LASSERT(req->rq_repmsg == NULL);
+	LASSERT(!req->rq_repdata);
+	LASSERT(!req->rq_repmsg);
 
 	if (req->rq_reply_off != 0) {
 		CERROR("early reply with offset %u\n", req->rq_reply_off);
@@ -1354,12 +1356,12 @@ int sptlrpc_import_sec_adapt(struct obd_import *imp,
 
 	might_sleep();
 
-	if (imp == NULL)
+	if (!imp)
 		return 0;
 
 	conn = imp->imp_connection;
 
-	if (svc_ctx == NULL) {
+	if (!svc_ctx) {
 		struct client_obd *cliobd = &imp->imp_obd->u.cli;
 		/*
 		 * normal import, determine flavor from rule set, except
@@ -1447,11 +1449,11 @@ static void import_flush_ctx_common(struct obd_import *imp,
 {
 	struct ptlrpc_sec *sec;
 
-	if (imp == NULL)
+	if (!imp)
 		return;
 
 	sec = sptlrpc_import_sec_ref(imp);
-	if (sec == NULL)
+	if (!sec)
 		return;
 
 	sec_cop_flush_ctx_cache(sec, uid, grace, force);
@@ -1484,7 +1486,7 @@ int sptlrpc_cli_alloc_reqbuf(struct ptlrpc_request *req, int msgsize)
 	LASSERT(ctx);
 	LASSERT(ctx->cc_sec);
 	LASSERT(ctx->cc_sec->ps_policy);
-	LASSERT(req->rq_reqmsg == NULL);
+	LASSERT(!req->rq_reqmsg);
 	LASSERT_ATOMIC_POS(&ctx->cc_refcount);
 
 	policy = ctx->cc_sec->ps_policy;
@@ -1515,7 +1517,7 @@ void sptlrpc_cli_free_reqbuf(struct ptlrpc_request *req)
 	LASSERT(ctx->cc_sec->ps_policy);
 	LASSERT_ATOMIC_POS(&ctx->cc_refcount);
 
-	if (req->rq_reqbuf == NULL && req->rq_clrbuf == NULL)
+	if (!req->rq_reqbuf && !req->rq_clrbuf)
 		return;
 
 	policy = ctx->cc_sec->ps_policy;
@@ -1632,7 +1634,7 @@ void sptlrpc_cli_free_repbuf(struct ptlrpc_request *req)
 	LASSERT(ctx->cc_sec->ps_policy);
 	LASSERT_ATOMIC_POS(&ctx->cc_refcount);
 
-	if (req->rq_repbuf == NULL)
+	if (!req->rq_repbuf)
 		return;
 	LASSERT(req->rq_repbuf_len);
 
@@ -1684,12 +1686,13 @@ int sptlrpc_target_export_check(struct obd_export *exp,
 {
 	struct sptlrpc_flavor flavor;
 
-	if (exp == NULL)
+	if (!exp)
 		return 0;
 
 	/* client side export has no imp_reverse, skip
-	 * FIXME maybe we should check flavor this as well??? */
-	if (exp->exp_imp_reverse == NULL)
+	 * FIXME maybe we should check flavor this as well???
+	 */
+	if (!exp->exp_imp_reverse)
 		return 0;
 
 	/* don't care about ctx fini rpc */
@@ -1702,11 +1705,13 @@ int sptlrpc_target_export_check(struct obd_export *exp,
 	 * the first req with the new flavor, then treat it as current flavor,
 	 * adapt reverse sec according to it.
 	 * note the first rpc with new flavor might not be with root ctx, in
-	 * which case delay the sec_adapt by leaving exp_flvr_adapt == 1. */
+	 * which case delay the sec_adapt by leaving exp_flvr_adapt == 1.
+	 */
 	if (unlikely(exp->exp_flvr_changed) &&
 	    flavor_allowed(&exp->exp_flvr_old[1], req)) {
 		/* make the new flavor as "current", and old ones as
-		 * about-to-expire */
+		 * about-to-expire
+		 */
 		CDEBUG(D_SEC, "exp %p: just changed: %x->%x\n", exp,
 		       exp->exp_flvr.sf_rpc, exp->exp_flvr_old[1].sf_rpc);
 		flavor = exp->exp_flvr_old[1];
@@ -1742,10 +1747,12 @@ int sptlrpc_target_export_check(struct obd_export *exp,
 	}
 
 	/* if it equals to the current flavor, we accept it, but need to
-	 * dealing with reverse sec/ctx */
+	 * dealing with reverse sec/ctx
+	 */
 	if (likely(flavor_allowed(&exp->exp_flvr, req))) {
 		/* most cases should return here, we only interested in
-		 * gss root ctx init */
+		 * gss root ctx init
+		 */
 		if (!req->rq_auth_gss || !req->rq_ctx_init ||
 		    (!req->rq_auth_usr_root && !req->rq_auth_usr_mdt &&
 		     !req->rq_auth_usr_ost)) {
@@ -1755,7 +1762,8 @@ int sptlrpc_target_export_check(struct obd_export *exp,
 
 		/* if flavor just changed, we should not proceed, just leave
 		 * it and current flavor will be discovered and replaced
-		 * shortly, and let _this_ rpc pass through */
+		 * shortly, and let _this_ rpc pass through
+		 */
 		if (exp->exp_flvr_changed) {
 			LASSERT(exp->exp_flvr_adapt);
 			spin_unlock(&exp->exp_lock);
@@ -1809,7 +1817,8 @@ int sptlrpc_target_export_check(struct obd_export *exp,
 	}
 
 	/* now it doesn't match the current flavor, the only chance we can
-	 * accept it is match the old flavors which is not expired. */
+	 * accept it is match the old flavors which is not expired.
+	 */
 	if (exp->exp_flvr_changed == 0 && exp->exp_flvr_expire[1]) {
 		if (exp->exp_flvr_expire[1] >= ktime_get_real_seconds()) {
 			if (flavor_allowed(&exp->exp_flvr_old[1], req)) {
@@ -1915,9 +1924,9 @@ int sptlrpc_svc_unwrap_request(struct ptlrpc_request *req)
 	int rc;
 
 	LASSERT(msg);
-	LASSERT(req->rq_reqmsg == NULL);
-	LASSERT(req->rq_repmsg == NULL);
-	LASSERT(req->rq_svc_ctx == NULL);
+	LASSERT(!req->rq_reqmsg);
+	LASSERT(!req->rq_repmsg);
+	LASSERT(!req->rq_svc_ctx);
 
 	req->rq_req_swab_mask = 0;
 
@@ -1994,7 +2003,7 @@ int sptlrpc_svc_alloc_rs(struct ptlrpc_request *req, int msglen)
 
 		/* failed alloc, try emergency pool */
 		rs = lustre_get_emerg_rs(svcpt);
-		if (rs == NULL)
+		if (!rs)
 			return -ENOMEM;
 
 		req->rq_reply_state = rs;
@@ -2059,7 +2068,7 @@ void sptlrpc_svc_ctx_addref(struct ptlrpc_request *req)
 {
 	struct ptlrpc_svc_ctx *ctx = req->rq_svc_ctx;
 
-	if (ctx != NULL)
+	if (ctx)
 		atomic_inc(&ctx->sc_refcount);
 }
 
@@ -2067,7 +2076,7 @@ void sptlrpc_svc_ctx_decref(struct ptlrpc_request *req)
 {
 	struct ptlrpc_svc_ctx *ctx = req->rq_svc_ctx;
 
-	if (ctx == NULL)
+	if (!ctx)
 		return;
 
 	LASSERT_ATOMIC_POS(&ctx->sc_refcount);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
index 22621c7..72d5b9b 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
@@ -120,7 +120,7 @@ static struct ptlrpc_enc_page_pool {
 } page_pools;
 
 /*
- * /proc/fs/lustre/sptlrpc/encrypt_page_pools
+ * /sys/kernel/debug/lustre/sptlrpc/encrypt_page_pools
  */
 int sptlrpc_proc_enc_pool_seq_show(struct seq_file *m, void *v)
 {
@@ -195,7 +195,7 @@ static void enc_pools_release_free_pages(long npages)
 
 	while (npages--) {
 		LASSERT(page_pools.epp_pools[p_idx]);
-		LASSERT(page_pools.epp_pools[p_idx][g_idx] != NULL);
+		LASSERT(page_pools.epp_pools[p_idx][g_idx]);
 
 		__free_page(page_pools.epp_pools[p_idx][g_idx]);
 		page_pools.epp_pools[p_idx][g_idx] = NULL;
@@ -316,7 +316,7 @@ void sptlrpc_enc_pool_put_pages(struct ptlrpc_bulk_desc *desc)
 	int p_idx, g_idx;
 	int i;
 
-	if (desc->bd_enc_iov == NULL)
+	if (!desc->bd_enc_iov)
 		return;
 
 	LASSERT(desc->bd_iov_count > 0);
@@ -331,9 +331,9 @@ void sptlrpc_enc_pool_put_pages(struct ptlrpc_bulk_desc *desc)
 	LASSERT(page_pools.epp_pools[p_idx]);
 
 	for (i = 0; i < desc->bd_iov_count; i++) {
-		LASSERT(desc->bd_enc_iov[i].kiov_page != NULL);
+		LASSERT(desc->bd_enc_iov[i].kiov_page);
 		LASSERT(g_idx != 0 || page_pools.epp_pools[p_idx]);
-		LASSERT(page_pools.epp_pools[p_idx][g_idx] == NULL);
+		LASSERT(!page_pools.epp_pools[p_idx][g_idx]);
 
 		page_pools.epp_pools[p_idx][g_idx] =
 					desc->bd_enc_iov[i].kiov_page;
@@ -412,7 +412,7 @@ int sptlrpc_enc_pool_init(void)
 	page_pools.epp_st_max_wait = 0;
 
 	enc_pools_alloc();
-	if (page_pools.epp_pools == NULL)
+	if (!page_pools.epp_pools)
 		return -ENOMEM;
 
 	register_shrinker(&pools_shrinker);
@@ -475,7 +475,7 @@ int bulk_sec_desc_unpack(struct lustre_msg *msg, int offset, int swabbed)
 	int			  size = msg->lm_buflens[offset];
 
 	bsd = lustre_msg_buf(msg, offset, sizeof(*bsd));
-	if (bsd == NULL) {
+	if (!bsd) {
 		CERROR("Invalid bulk sec desc: size %d\n", size);
 		return -EINVAL;
 	}
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_config.c b/drivers/staging/lustre/lustre/ptlrpc/sec_config.c
index 4b0b81c..93b91bf 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_config.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_config.c
@@ -78,7 +78,7 @@ int sptlrpc_parse_flavor(const char *str, struct sptlrpc_flavor *flvr)
 
 	memset(flvr, 0, sizeof(*flvr));
 
-	if (str == NULL || str[0] == '\0') {
+	if (!str || str[0] == '\0') {
 		flvr->sf_rpc = SPTLRPC_FLVR_INVALID;
 		return 0;
 	}
@@ -103,7 +103,7 @@ int sptlrpc_parse_flavor(const char *str, struct sptlrpc_flavor *flvr)
 			 * format: plain-hash:<hash_alg>
 			 */
 			alg = strchr(bulk, ':');
-			if (alg == NULL)
+			if (!alg)
 				goto err_out;
 			*alg++ = '\0';
 
@@ -166,7 +166,7 @@ static int sptlrpc_parse_rule(char *param, struct sptlrpc_rule *rule)
 	sptlrpc_rule_init(rule);
 
 	flavor = strchr(param, '=');
-	if (flavor == NULL) {
+	if (!flavor) {
 		CERROR("invalid param, no '='\n");
 		return -EINVAL;
 	}
@@ -216,7 +216,7 @@ static int sptlrpc_parse_rule(char *param, struct sptlrpc_rule *rule)
 static void sptlrpc_rule_set_free(struct sptlrpc_rule_set *rset)
 {
 	LASSERT(rset->srs_nslot ||
-		(rset->srs_nrule == 0 && rset->srs_rules == NULL));
+		(rset->srs_nrule == 0 && !rset->srs_rules));
 
 	if (rset->srs_nslot) {
 		kfree(rset->srs_rules);
@@ -241,7 +241,7 @@ static int sptlrpc_rule_set_expand(struct sptlrpc_rule_set *rset)
 
 	/* better use realloc() if available */
 	rules = kcalloc(nslot, sizeof(*rset->srs_rules), GFP_NOFS);
-	if (rules == NULL)
+	if (!rules)
 		return -ENOMEM;
 
 	if (rset->srs_nrule) {
@@ -450,7 +450,7 @@ static void target2fsname(const char *tgt, char *fsname, int buflen)
 	}
 
 	/* if we didn't find the pattern, treat the whole string as fsname */
-	if (ptr == NULL)
+	if (!ptr)
 		len = strlen(tgt);
 	else
 		len = ptr - tgt;
@@ -579,13 +579,13 @@ static int __sptlrpc_process_config(struct lustre_cfg *lcfg,
 	int rc;
 
 	target = lustre_cfg_string(lcfg, 1);
-	if (target == NULL) {
+	if (!target) {
 		CERROR("missing target name\n");
 		return -EINVAL;
 	}
 
 	param = lustre_cfg_string(lcfg, 2);
-	if (param == NULL) {
+	if (!param) {
 		CERROR("missing parameter\n");
 		return -EINVAL;
 	}
@@ -603,12 +603,12 @@ static int __sptlrpc_process_config(struct lustre_cfg *lcfg,
 	if (rc)
 		return -EINVAL;
 
-	if (conf == NULL) {
+	if (!conf) {
 		target2fsname(target, fsname, sizeof(fsname));
 
 		mutex_lock(&sptlrpc_conf_lock);
 		conf = sptlrpc_conf_get(fsname, 0);
-		if (conf == NULL) {
+		if (!conf) {
 			CERROR("can't find conf\n");
 			rc = -ENOMEM;
 		} else {
@@ -638,7 +638,7 @@ static int logname2fsname(const char *logname, char *buf, int buflen)
 	int len;
 
 	ptr = strrchr(logname, '-');
-	if (ptr == NULL || strcmp(ptr, "-sptlrpc")) {
+	if (!ptr || strcmp(ptr, "-sptlrpc")) {
 		CERROR("%s is not a sptlrpc config log\n", logname);
 		return -EINVAL;
 	}
@@ -772,7 +772,7 @@ void sptlrpc_conf_choose_flavor(enum lustre_sec_part from,
 	mutex_lock(&sptlrpc_conf_lock);
 
 	conf = sptlrpc_conf_get(name, 0);
-	if (conf == NULL)
+	if (!conf)
 		goto out;
 
 	/* convert uuid name (supposed end with _UUID) to target name */
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_gc.c b/drivers/staging/lustre/lustre/ptlrpc/sec_gc.c
index 6e58d5f..d5afc4f 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_gc.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_gc.c
@@ -166,11 +166,13 @@ again:
 		 * is not optimal. we perhaps want to use balanced binary tree
 		 * to trace each sec as order of expiry time.
 		 * another issue here is we wakeup as fixed interval instead of
-		 * according to each sec's expiry time */
+		 * according to each sec's expiry time
+		 */
 		mutex_lock(&sec_gc_mutex);
 		list_for_each_entry(sec, &sec_gc_list, ps_gc_list) {
 			/* if someone is waiting to be deleted, let it
-			 * proceed as soon as possible. */
+			 * proceed as soon as possible.
+			 */
 			if (atomic_read(&sec_gc_wait_del)) {
 				CDEBUG(D_SEC, "deletion pending, start over\n");
 				mutex_unlock(&sec_gc_mutex);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_lproc.c b/drivers/staging/lustre/lustre/ptlrpc/sec_lproc.c
index bda9a77..e610a8d 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_lproc.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_lproc.c
@@ -82,7 +82,7 @@ static int sptlrpc_info_lprocfs_seq_show(struct seq_file *seq, void *v)
 
 	if (cli->cl_import)
 		sec = sptlrpc_import_sec_ref(cli->cl_import);
-	if (sec == NULL)
+	if (!sec)
 		goto out;
 
 	sec_flags2str(sec->ps_flvr.sf_flags, str, sizeof(str));
@@ -121,7 +121,7 @@ static int sptlrpc_ctxs_lprocfs_seq_show(struct seq_file *seq, void *v)
 
 	if (cli->cl_import)
 		sec = sptlrpc_import_sec_ref(cli->cl_import);
-	if (sec == NULL)
+	if (!sec)
 		goto out;
 
 	if (sec->ps_policy->sp_cops->display)
@@ -178,7 +178,7 @@ int sptlrpc_lproc_init(void)
 {
 	int rc;
 
-	LASSERT(sptlrpc_debugfs_dir == NULL);
+	LASSERT(!sptlrpc_debugfs_dir);
 
 	sptlrpc_debugfs_dir = ldebugfs_register("sptlrpc", debugfs_lustre_root,
 						sptlrpc_lprocfs_vars, NULL);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_null.c b/drivers/staging/lustre/lustre/ptlrpc/sec_null.c
index ebfa609..40e5349 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_null.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_null.c
@@ -250,7 +250,7 @@ int null_enlarge_reqbuf(struct ptlrpc_sec *sec,
 		alloc_size = size_roundup_power2(newmsg_size);
 
 		newbuf = libcfs_kvzalloc(alloc_size, GFP_NOFS);
-		if (newbuf == NULL)
+		if (!newbuf)
 			return -ENOMEM;
 
 		/* Must lock this, so that otherwise unprotected change of
@@ -258,7 +258,8 @@ int null_enlarge_reqbuf(struct ptlrpc_sec *sec,
 		 * imp_replay_list traversing threads. See LU-3333
 		 * This is a bandaid at best, we really need to deal with this
 		 * in request enlarging code before unpacking that's already
-		 * there */
+		 * there
+		 */
 		if (req->rq_import)
 			spin_lock(&req->rq_import->imp_lock);
 		memcpy(newbuf, req->rq_reqbuf, req->rq_reqlen);
@@ -319,7 +320,7 @@ int null_alloc_rs(struct ptlrpc_request *req, int msgsize)
 		LASSERT(rs->rs_size >= rs_size);
 	} else {
 		rs = libcfs_kvzalloc(rs_size, GFP_NOFS);
-		if (rs == NULL)
+		if (!rs)
 			return -ENOMEM;
 
 		rs->rs_size = rs_size;
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c b/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
index 905a414..6276bf5 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
@@ -104,7 +104,7 @@ static int plain_unpack_bsd(struct lustre_msg *msg, int swabbed)
 		return -EPROTO;
 
 	bsd = lustre_msg_buf(msg, PLAIN_PACK_BULK_OFF, PLAIN_BSD_SIZE);
-	if (bsd == NULL) {
+	if (!bsd) {
 		CERROR("bulk sec desc has short size %d\n",
 		       lustre_msg_buflen(msg, PLAIN_PACK_BULK_OFF));
 		return -EPROTO;
@@ -227,7 +227,7 @@ int plain_ctx_verify(struct ptlrpc_cli_ctx *ctx, struct ptlrpc_request *req)
 	swabbed = ptlrpc_rep_need_swab(req);
 
 	phdr = lustre_msg_buf(msg, PLAIN_PACK_HDR_OFF, sizeof(*phdr));
-	if (phdr == NULL) {
+	if (!phdr) {
 		CERROR("missing plain header\n");
 		return -EPROTO;
 	}
@@ -264,7 +264,8 @@ int plain_ctx_verify(struct ptlrpc_cli_ctx *ctx, struct ptlrpc_request *req)
 		}
 	} else {
 		/* whether we sent with bulk or not, we expect the same
-		 * in reply, except for early reply */
+		 * in reply, except for early reply
+		 */
 		if (!req->rq_early &&
 		    !equi(req->rq_pack_bulk == 1,
 			  phdr->ph_flags & PLAIN_FL_BULK)) {
@@ -419,7 +420,7 @@ void plain_destroy_sec(struct ptlrpc_sec *sec)
 	LASSERT(sec->ps_import);
 	LASSERT(atomic_read(&sec->ps_refcount) == 0);
 	LASSERT(atomic_read(&sec->ps_nctx) == 0);
-	LASSERT(plsec->pls_ctx == NULL);
+	LASSERT(!plsec->pls_ctx);
 
 	class_import_put(sec->ps_import);
 
@@ -468,7 +469,7 @@ struct ptlrpc_sec *plain_create_sec(struct obd_import *imp,
 	/* install ctx immediately if this is a reverse sec */
 	if (svc_ctx) {
 		ctx = plain_sec_install_ctx(plsec);
-		if (ctx == NULL) {
+		if (!ctx) {
 			plain_destroy_sec(sec);
 			return NULL;
 		}
@@ -492,7 +493,7 @@ struct ptlrpc_cli_ctx *plain_lookup_ctx(struct ptlrpc_sec *sec,
 		atomic_inc(&ctx->cc_refcount);
 	read_unlock(&plsec->pls_lock);
 
-	if (unlikely(ctx == NULL))
+	if (unlikely(!ctx))
 		ctx = plain_sec_install_ctx(plsec);
 
 	return ctx;
@@ -665,7 +666,7 @@ int plain_enlarge_reqbuf(struct ptlrpc_sec *sec,
 		newbuf_size = size_roundup_power2(newbuf_size);
 
 		newbuf = libcfs_kvzalloc(newbuf_size, GFP_NOFS);
-		if (newbuf == NULL)
+		if (!newbuf)
 			return -ENOMEM;
 
 		/* Must lock this, so that otherwise unprotected change of
@@ -673,7 +674,8 @@ int plain_enlarge_reqbuf(struct ptlrpc_sec *sec,
 		 * imp_replay_list traversing threads. See LU-3333
 		 * This is a bandaid at best, we really need to deal with this
 		 * in request enlarging code before unpacking that's already
-		 * there */
+		 * there
+		 */
 		if (req->rq_import)
 			spin_lock(&req->rq_import->imp_lock);
 
@@ -732,7 +734,7 @@ int plain_accept(struct ptlrpc_request *req)
 	swabbed = ptlrpc_req_need_swab(req);
 
 	phdr = lustre_msg_buf(msg, PLAIN_PACK_HDR_OFF, sizeof(*phdr));
-	if (phdr == NULL) {
+	if (!phdr) {
 		CERROR("missing plain header\n");
 		return -EPROTO;
 	}
@@ -801,7 +803,7 @@ int plain_alloc_rs(struct ptlrpc_request *req, int msgsize)
 		LASSERT(rs->rs_size >= rs_size);
 	} else {
 		rs = libcfs_kvzalloc(rs_size, GFP_NOFS);
-		if (rs == NULL)
+		if (!rs)
 			return -ENOMEM;
 
 		rs->rs_size = rs_size;
diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c
index 8598300..6f71ecc 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/service.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/service.c
@@ -77,7 +77,7 @@ ptlrpc_alloc_rqbd(struct ptlrpc_service_part *svcpt)
 	rqbd = kzalloc_node(sizeof(*rqbd), GFP_NOFS,
 			    cfs_cpt_spread_node(svc->srv_cptable,
 						svcpt->scp_cpt));
-	if (rqbd == NULL)
+	if (!rqbd)
 		return NULL;
 
 	rqbd->rqbd_svcpt = svcpt;
@@ -89,7 +89,7 @@ ptlrpc_alloc_rqbd(struct ptlrpc_service_part *svcpt)
 						svcpt->scp_cpt,
 						svc->srv_buf_size,
 						GFP_KERNEL);
-	if (rqbd->rqbd_buffer == NULL) {
+	if (!rqbd->rqbd_buffer) {
 		kfree(rqbd);
 		return NULL;
 	}
@@ -144,13 +144,14 @@ ptlrpc_grow_req_bufs(struct ptlrpc_service_part *svcpt, int post)
 
 	for (i = 0; i < svc->srv_nbuf_per_group; i++) {
 		/* NB: another thread might have recycled enough rqbds, we
-		 * need to make sure it wouldn't over-allocate, see LU-1212. */
+		 * need to make sure it wouldn't over-allocate, see LU-1212.
+		 */
 		if (svcpt->scp_nrqbds_posted >= svc->srv_nbuf_per_group)
 			break;
 
 		rqbd = ptlrpc_alloc_rqbd(svcpt);
 
-		if (rqbd == NULL) {
+		if (!rqbd) {
 			CERROR("%s: Can't allocate request buffer\n",
 			       svc->srv_name);
 			rc = -ENOMEM;
@@ -322,7 +323,8 @@ ptlrpc_server_post_idle_rqbds(struct ptlrpc_service_part *svcpt)
 	list_add_tail(&rqbd->rqbd_list, &svcpt->scp_rqbd_idle);
 
 	/* Don't complain if no request buffers are posted right now; LNET
-	 * won't drop requests because we set the portal lazy! */
+	 * won't drop requests because we set the portal lazy!
+	 */
 
 	spin_unlock(&svcpt->scp_lock);
 
@@ -363,13 +365,15 @@ ptlrpc_server_nthreads_check(struct ptlrpc_service *svc,
 	init = max_t(int, init, tc->tc_nthrs_init);
 
 	/* NB: please see comments in lustre_lnet.h for definition
-	 * details of these members */
+	 * details of these members
+	 */
 	LASSERT(tc->tc_nthrs_max != 0);
 
 	if (tc->tc_nthrs_user != 0) {
 		/* In case there is a reason to test a service with many
 		 * threads, we give a less strict check here, it can
-		 * be up to 8 * nthrs_max */
+		 * be up to 8 * nthrs_max
+		 */
 		total = min(tc->tc_nthrs_max * 8, tc->tc_nthrs_user);
 		nthrs = total / svc->srv_ncpts;
 		init = max(init, nthrs);
@@ -379,7 +383,8 @@ ptlrpc_server_nthreads_check(struct ptlrpc_service *svc,
 	total = tc->tc_nthrs_max;
 	if (tc->tc_nthrs_base == 0) {
 		/* don't care about base threads number per partition,
-		 * this is most for non-affinity service */
+		 * this is most for non-affinity service
+		 */
 		nthrs = total / svc->srv_ncpts;
 		goto out;
 	}
@@ -390,7 +395,8 @@ ptlrpc_server_nthreads_check(struct ptlrpc_service *svc,
 
 		/* NB: Increase the base number if it's single partition
 		 * and total number of cores/HTs is larger or equal to 4.
-		 * result will always < 2 * nthrs_base */
+		 * result will always < 2 * nthrs_base
+		 */
 		weight = cfs_cpt_weight(svc->srv_cptable, CFS_CPT_ANY);
 		for (i = 1; (weight >> (i + 1)) != 0 && /* >= 4 cores/HTs */
 			    (tc->tc_nthrs_base >> i) != 0; i++)
@@ -490,7 +496,7 @@ ptlrpc_service_part_init(struct ptlrpc_service *svc,
 	array->paa_reqs_array =
 		kzalloc_node(sizeof(struct list_head) * size, GFP_NOFS,
 			     cfs_cpt_spread_node(svc->srv_cptable, cpt));
-	if (array->paa_reqs_array == NULL)
+	if (!array->paa_reqs_array)
 		return -ENOMEM;
 
 	for (index = 0; index < size; index++)
@@ -499,14 +505,15 @@ ptlrpc_service_part_init(struct ptlrpc_service *svc,
 	array->paa_reqs_count =
 		kzalloc_node(sizeof(__u32) * size, GFP_NOFS,
 			     cfs_cpt_spread_node(svc->srv_cptable, cpt));
-	if (array->paa_reqs_count == NULL)
+	if (!array->paa_reqs_count)
 		goto free_reqs_array;
 
 	setup_timer(&svcpt->scp_at_timer, ptlrpc_at_timer,
 		    (unsigned long)svcpt);
 
 	/* At SOW, service time should be quick; 10s seems generous. If client
-	 * timeout is less than this, we'll be sending an early reply. */
+	 * timeout is less than this, we'll be sending an early reply.
+	 */
 	at_init(&svcpt->scp_at_estimate, 10, 0);
 
 	/* assign this before call ptlrpc_grow_req_bufs */
@@ -514,7 +521,8 @@ ptlrpc_service_part_init(struct ptlrpc_service *svc,
 	/* Now allocate the request buffers, but don't post them now */
 	rc = ptlrpc_grow_req_bufs(svcpt, 0);
 	/* We shouldn't be under memory pressure at startup, so
-	 * fail if we can't allocate all our buffers at this time. */
+	 * fail if we can't allocate all our buffers at this time.
+	 */
 	if (rc != 0)
 		goto free_reqs_count;
 
@@ -556,14 +564,14 @@ ptlrpc_register_service(struct ptlrpc_service_conf *conf,
 	LASSERT(conf->psc_thr.tc_ctx_tags != 0);
 
 	cptable = cconf->cc_cptable;
-	if (cptable == NULL)
+	if (!cptable)
 		cptable = cfs_cpt_table;
 
 	if (!conf->psc_thr.tc_cpu_affinity) {
 		ncpts = 1;
 	} else {
 		ncpts = cfs_cpt_number(cptable);
-		if (cconf->cc_pattern != NULL) {
+		if (cconf->cc_pattern) {
 			struct cfs_expr_list *el;
 
 			rc = cfs_expr_list_parse(cconf->cc_pattern,
@@ -632,11 +640,11 @@ ptlrpc_register_service(struct ptlrpc_service_conf *conf,
 		if (!conf->psc_thr.tc_cpu_affinity)
 			cpt = CFS_CPT_ANY;
 		else
-			cpt = cpts != NULL ? cpts[i] : i;
+			cpt = cpts ? cpts[i] : i;
 
 		svcpt = kzalloc_node(sizeof(*svcpt), GFP_NOFS,
 				     cfs_cpt_spread_node(cptable, cpt));
-		if (svcpt == NULL) {
+		if (!svcpt) {
 			rc = -ENOMEM;
 			goto failed;
 		}
@@ -696,7 +704,8 @@ static void ptlrpc_server_free_request(struct ptlrpc_request *req)
 	LASSERT(list_empty(&req->rq_timed_list));
 
 	 /* DEBUG_REQ() assumes the reply state of a request with a valid
-	  * ref will not be destroyed until that reference is dropped. */
+	  * ref will not be destroyed until that reference is dropped.
+	  */
 	ptlrpc_req_drop_rs(req);
 
 	sptlrpc_svc_ctx_decref(req);
@@ -704,7 +713,8 @@ static void ptlrpc_server_free_request(struct ptlrpc_request *req)
 	if (req != &req->rq_rqbd->rqbd_req) {
 		/* NB request buffers use an embedded
 		 * req if the incoming req unlinked the
-		 * MD; this isn't one of them! */
+		 * MD; this isn't one of them!
+		 */
 		ptlrpc_request_cache_free(req);
 	}
 }
@@ -728,7 +738,8 @@ static void ptlrpc_server_drop_request(struct ptlrpc_request *req)
 	if (req->rq_at_linked) {
 		spin_lock(&svcpt->scp_at_lock);
 		/* recheck with lock, in case it's unlinked by
-		 * ptlrpc_at_check_timed() */
+		 * ptlrpc_at_check_timed()
+		 */
 		if (likely(req->rq_at_linked))
 			ptlrpc_at_remove_timed(req);
 		spin_unlock(&svcpt->scp_at_lock);
@@ -755,7 +766,8 @@ static void ptlrpc_server_drop_request(struct ptlrpc_request *req)
 		svcpt->scp_hist_nrqbds++;
 
 		/* cull some history?
-		 * I expect only about 1 or 2 rqbds need to be recycled here */
+		 * I expect only about 1 or 2 rqbds need to be recycled here
+		 */
 		while (svcpt->scp_hist_nrqbds > svc->srv_hist_nrqbds_cpt_max) {
 			rqbd = list_entry(svcpt->scp_hist_rqbds.next,
 					      struct ptlrpc_request_buffer_desc,
@@ -765,7 +777,8 @@ static void ptlrpc_server_drop_request(struct ptlrpc_request *req)
 			svcpt->scp_hist_nrqbds--;
 
 			/* remove rqbd's reqs from svc's req history while
-			 * I've got the service lock */
+			 * I've got the service lock
+			 */
 			list_for_each(tmp, &rqbd->rqbd_reqs) {
 				req = list_entry(tmp, struct ptlrpc_request,
 						     rq_list);
@@ -846,7 +859,7 @@ static void ptlrpc_server_finish_active_request(
 
 	ptlrpc_nrs_req_finalize(req);
 
-	if (req->rq_export != NULL)
+	if (req->rq_export)
 		class_export_rpc_dec(req->rq_export);
 
 	ptlrpc_server_finish_request(svcpt, req);
@@ -869,13 +882,13 @@ static int ptlrpc_check_req(struct ptlrpc_request *req)
 			  req->rq_export->exp_conn_cnt);
 		return -EEXIST;
 	}
-	if (unlikely(obd == NULL || obd->obd_fail)) {
+	if (unlikely(!obd || obd->obd_fail)) {
 		/*
 		 * Failing over, don't handle any more reqs, send
 		 * error response instead.
 		 */
 		CDEBUG(D_RPCTRACE, "Dropping req %p for failed obd %s\n",
-		       req, (obd != NULL) ? obd->obd_name : "unknown");
+		       req, obd ? obd->obd_name : "unknown");
 		rc = -ENODEV;
 	} else if (lustre_msg_get_flags(req->rq_reqmsg) &
 		   (MSG_REPLAY | MSG_REQ_REPLAY_DONE)) {
@@ -942,7 +955,8 @@ static int ptlrpc_at_add_timed(struct ptlrpc_request *req)
 	div_u64_rem(req->rq_deadline, array->paa_size, &index);
 	if (array->paa_reqs_count[index] > 0) {
 		/* latest rpcs will have the latest deadlines in the list,
-		 * so search backward. */
+		 * so search backward.
+		 */
 		list_for_each_entry_reverse(rq,
 						&array->paa_reqs_array[index],
 						rq_timed_list) {
@@ -1003,7 +1017,8 @@ static int ptlrpc_at_send_early_reply(struct ptlrpc_request *req)
 	int rc;
 
 	/* deadline is when the client expects us to reply, margin is the
-	   difference between clients' and servers' expectations */
+	 * difference between clients' and servers' expectations
+	 */
 	DEBUG_REQ(D_ADAPTTO, req,
 		  "%ssending early reply (deadline %+lds, margin %+lds) for %d+%d",
 		  AT_OFF ? "AT off - not " : "",
@@ -1027,12 +1042,14 @@ static int ptlrpc_at_send_early_reply(struct ptlrpc_request *req)
 	}
 
 	/* Fake our processing time into the future to ask the clients
-	 * for some extra amount of time */
+	 * for some extra amount of time
+	 */
 	at_measured(&svcpt->scp_at_estimate, at_extra +
 		    ktime_get_real_seconds() - req->rq_arrival_time.tv_sec);
 
 	/* Check to see if we've actually increased the deadline -
-	 * we may be past adaptive_max */
+	 * we may be past adaptive_max
+	 */
 	if (req->rq_deadline >= req->rq_arrival_time.tv_sec +
 	    at_get(&svcpt->scp_at_estimate)) {
 		DEBUG_REQ(D_WARNING, req, "Couldn't add any time (%ld/%lld), not sending early reply\n",
@@ -1044,7 +1061,7 @@ static int ptlrpc_at_send_early_reply(struct ptlrpc_request *req)
 	newdl = ktime_get_real_seconds() + at_get(&svcpt->scp_at_estimate);
 
 	reqcopy = ptlrpc_request_cache_alloc(GFP_NOFS);
-	if (reqcopy == NULL)
+	if (!reqcopy)
 		return -ENOMEM;
 	reqmsg = libcfs_kvzalloc(req->rq_reqlen, GFP_NOFS);
 	if (!reqmsg) {
@@ -1074,7 +1091,7 @@ static int ptlrpc_at_send_early_reply(struct ptlrpc_request *req)
 	/* Connection ref */
 	reqcopy->rq_export = class_conn2export(
 				     lustre_msg_get_handle(reqcopy->rq_reqmsg));
-	if (reqcopy->rq_export == NULL) {
+	if (!reqcopy->rq_export) {
 		rc = -ENODEV;
 		goto out;
 	}
@@ -1102,7 +1119,8 @@ static int ptlrpc_at_send_early_reply(struct ptlrpc_request *req)
 	}
 
 	/* Free the (early) reply state from lustre_pack_reply.
-	   (ptlrpc_send_reply takes it's own rs ref, so this is safe here) */
+	 * (ptlrpc_send_reply takes it's own rs ref, so this is safe here)
+	 */
 	ptlrpc_req_drop_rs(reqcopy);
 
 out_put:
@@ -1117,7 +1135,8 @@ out_free:
 }
 
 /* Send early replies to everybody expiring within at_early_margin
-   asking for at_extra time */
+ * asking for at_extra time
+ */
 static int ptlrpc_at_check_timed(struct ptlrpc_service_part *svcpt)
 {
 	struct ptlrpc_at_array *array = &svcpt->scp_at_array;
@@ -1152,7 +1171,8 @@ static int ptlrpc_at_check_timed(struct ptlrpc_service_part *svcpt)
 	}
 
 	/* We're close to a timeout, and we don't know how much longer the
-	   server will take. Send early replies to everyone expiring soon. */
+	 * server will take. Send early replies to everyone expiring soon.
+	 */
 	INIT_LIST_HEAD(&work_list);
 	deadline = -1;
 	div_u64_rem(array->paa_deadline, array->paa_size, &index);
@@ -1194,7 +1214,8 @@ static int ptlrpc_at_check_timed(struct ptlrpc_service_part *svcpt)
 	       first, at_extra, counter);
 	if (first < 0) {
 		/* We're already past request deadlines before we even get a
-		   chance to send early replies */
+		 * chance to send early replies
+		 */
 		LCONSOLE_WARN("%s: This server is not able to keep up with request traffic (cpu-bound).\n",
 			      svcpt->scp_service->srv_name);
 		CWARN("earlyQ=%d reqQ=%d recA=%d, svcEst=%d, delay=%ld(jiff)\n",
@@ -1204,7 +1225,8 @@ static int ptlrpc_at_check_timed(struct ptlrpc_service_part *svcpt)
 	}
 
 	/* we took additional refcount so entries can't be deleted from list, no
-	 * locking is needed */
+	 * locking is needed
+	 */
 	while (!list_empty(&work_list)) {
 		rq = list_entry(work_list.next, struct ptlrpc_request,
 				    rq_timed_list);
@@ -1237,7 +1259,8 @@ static int ptlrpc_server_hpreq_init(struct ptlrpc_service_part *svcpt,
 	if (req->rq_export && req->rq_ops) {
 		/* Perform request specific check. We should do this check
 		 * before the request is added into exp_hp_rpcs list otherwise
-		 * it may hit swab race at LU-1044. */
+		 * it may hit swab race at LU-1044.
+		 */
 		if (req->rq_ops->hpreq_check) {
 			rc = req->rq_ops->hpreq_check(req);
 			/**
@@ -1272,7 +1295,8 @@ static void ptlrpc_server_hpreq_fini(struct ptlrpc_request *req)
 {
 	if (req->rq_export && req->rq_ops) {
 		/* refresh lock timeout again so that client has more
-		 * room to send lock cancel RPC. */
+		 * room to send lock cancel RPC.
+		 */
 		if (req->rq_ops->hpreq_fini)
 			req->rq_ops->hpreq_fini(req);
 
@@ -1316,7 +1340,7 @@ static bool ptlrpc_server_allow_high(struct ptlrpc_service_part *svcpt,
 		     CFS_FAIL_PRECHECK(OBD_FAIL_PTLRPC_CANCEL_RESEND))) {
 		/* leave just 1 thread for normal RPCs */
 		running = PTLRPC_NTHRS_INIT;
-		if (svcpt->scp_service->srv_ops.so_hpreq_handler != NULL)
+		if (svcpt->scp_service->srv_ops.so_hpreq_handler)
 			running += 1;
 	}
 
@@ -1355,7 +1379,7 @@ static bool ptlrpc_server_allow_normal(struct ptlrpc_service_part *svcpt,
 		     CFS_FAIL_PRECHECK(OBD_FAIL_PTLRPC_CANCEL_RESEND))) {
 		/* leave just 1 thread for normal RPCs */
 		running = PTLRPC_NTHRS_INIT;
-		if (svcpt->scp_service->srv_ops.so_hpreq_handler != NULL)
+		if (svcpt->scp_service->srv_ops.so_hpreq_handler)
 			running += 1;
 	}
 
@@ -1405,7 +1429,7 @@ ptlrpc_server_request_get(struct ptlrpc_service_part *svcpt, bool force)
 
 	if (ptlrpc_server_high_pending(svcpt, force)) {
 		req = ptlrpc_nrs_req_get_nolock(svcpt, true, force);
-		if (req != NULL) {
+		if (req) {
 			svcpt->scp_hreq_count++;
 			goto got_request;
 		}
@@ -1413,7 +1437,7 @@ ptlrpc_server_request_get(struct ptlrpc_service_part *svcpt, bool force)
 
 	if (ptlrpc_server_normal_pending(svcpt, force)) {
 		req = ptlrpc_nrs_req_get_nolock(svcpt, false, force);
-		if (req != NULL) {
+		if (req) {
 			svcpt->scp_hreq_count = 0;
 			goto got_request;
 		}
@@ -1461,7 +1485,8 @@ ptlrpc_server_handle_req_in(struct ptlrpc_service_part *svcpt,
 	list_del_init(&req->rq_list);
 	svcpt->scp_nreqs_incoming--;
 	/* Consider this still a "queued" request as far as stats are
-	 * concerned */
+	 * concerned
+	 */
 	spin_unlock(&svcpt->scp_lock);
 
 	/* go through security check/transform */
@@ -1598,7 +1623,7 @@ ptlrpc_server_handle_request(struct ptlrpc_service_part *svcpt,
 	int fail_opc = 0;
 
 	request = ptlrpc_server_request_get(svcpt, false);
-	if (request == NULL)
+	if (!request)
 		return 0;
 
 	if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_HPREQ_NOTIMEOUT))
@@ -1620,7 +1645,7 @@ ptlrpc_server_handle_request(struct ptlrpc_service_part *svcpt,
 	timediff = timespec64_sub(work_start, request->rq_arrival_time);
 	timediff_usecs = timediff.tv_sec * USEC_PER_SEC +
 			 timediff.tv_nsec / NSEC_PER_USEC;
-	if (likely(svc->srv_stats != NULL)) {
+	if (likely(svc->srv_stats)) {
 		lprocfs_counter_add(svc->srv_stats, PTLRPC_REQWAIT_CNTR,
 				    timediff_usecs);
 		lprocfs_counter_add(svc->srv_stats, PTLRPC_REQQDEPTH_CNTR,
@@ -1652,7 +1677,8 @@ ptlrpc_server_handle_request(struct ptlrpc_service_part *svcpt,
 	}
 
 	/* Discard requests queued for longer than the deadline.
-	   The deadline is increased if we send an early reply. */
+	 * The deadline is increased if we send an early reply.
+	 */
 	if (ktime_get_real_seconds() > request->rq_deadline) {
 		DEBUG_REQ(D_ERROR, request, "Dropping timed-out request from %s: deadline " CFS_DURATION_T ":" CFS_DURATION_T "s ago\n",
 			  libcfs_id2str(request->rq_peer),
@@ -1718,7 +1744,7 @@ put_conn:
 	       request->rq_status,
 	       (request->rq_repmsg ?
 		lustre_msg_get_status(request->rq_repmsg) : -999));
-	if (likely(svc->srv_stats != NULL && request->rq_reqmsg != NULL)) {
+	if (likely(svc->srv_stats && request->rq_reqmsg)) {
 		__u32 op = lustre_msg_get_opc(request->rq_reqmsg);
 		int opc = opcode_offset(op);
 
@@ -1804,7 +1830,8 @@ ptlrpc_handle_rs(struct ptlrpc_reply_state *rs)
 
 	if (nlocks == 0 && !been_handled) {
 		/* If we see this, we should already have seen the warning
-		 * in mds_steal_ack_locks()  */
+		 * in mds_steal_ack_locks()
+		 */
 		CDEBUG(D_HA, "All locks stolen from rs %p x%lld.t%lld o%d NID %s\n",
 		       rs,
 		       rs->rs_xid, rs->rs_transno, rs->rs_opc,
@@ -1858,7 +1885,8 @@ ptlrpc_check_rqbd_pool(struct ptlrpc_service_part *svcpt)
 	/* CAVEAT EMPTOR: We might be allocating buffers here because we've
 	 * allowed the request history to grow out of control.  We could put a
 	 * sanity check on that here and cull some history if we need the
-	 * space. */
+	 * space.
+	 */
 
 	if (avail <= low_water)
 		ptlrpc_grow_req_bufs(svcpt, 1);
@@ -1992,7 +2020,8 @@ static int ptlrpc_main(void *arg)
 
 	/* NB: we will call cfs_cpt_bind() for all threads, because we
 	 * might want to run lustre server only on a subset of system CPUs,
-	 * in that case ->scp_cpt is CFS_CPT_ANY */
+	 * in that case ->scp_cpt is CFS_CPT_ANY
+	 */
 	rc = cfs_cpt_bind(svc->srv_cptable, svcpt->scp_cpt);
 	if (rc != 0) {
 		CWARN("%s: failed to bind %s on CPT %d\n",
@@ -2008,7 +2037,7 @@ static int ptlrpc_main(void *arg)
 	set_current_groups(ginfo);
 	put_group_info(ginfo);
 
-	if (svc->srv_ops.so_thr_init != NULL) {
+	if (svc->srv_ops.so_thr_init) {
 		rc = svc->srv_ops.so_thr_init(thread);
 		if (rc)
 			goto out;
@@ -2057,7 +2086,8 @@ static int ptlrpc_main(void *arg)
 	/* SVC_STOPPING may already be set here if someone else is trying
 	 * to stop the service while this new thread has been dynamically
 	 * forked. We still set SVC_RUNNING to let our creator know that
-	 * we are now running, however we will exit as soon as possible */
+	 * we are now running, however we will exit as soon as possible
+	 */
 	thread_add_flags(thread, SVC_RUNNING);
 	svcpt->scp_nthrs_running++;
 	spin_unlock(&svcpt->scp_lock);
@@ -2116,7 +2146,8 @@ static int ptlrpc_main(void *arg)
 		    ptlrpc_server_post_idle_rqbds(svcpt) < 0) {
 			/* I just failed to repost request buffers.
 			 * Wait for a timeout (unless something else
-			 * happens) before I try again */
+			 * happens) before I try again
+			 */
 			svcpt->scp_rqbd_timeout = cfs_time_seconds(1) / 10;
 			CDEBUG(D_RPCTRACE, "Posted buffers: %d\n",
 			       svcpt->scp_nrqbds_posted);
@@ -2132,10 +2163,10 @@ out_srv_fini:
 	/*
 	 * deconstruct service specific state created by ptlrpc_start_thread()
 	 */
-	if (svc->srv_ops.so_thr_done != NULL)
+	if (svc->srv_ops.so_thr_done)
 		svc->srv_ops.so_thr_done(thread);
 
-	if (env != NULL) {
+	if (env) {
 		lu_context_fini(&env->le_ctx);
 		kfree(env);
 	}
@@ -2229,14 +2260,14 @@ static void ptlrpc_stop_hr_threads(void)
 	ptlrpc_hr.hr_stopping = 1;
 
 	cfs_percpt_for_each(hrp, i, ptlrpc_hr.hr_partitions) {
-		if (hrp->hrp_thrs == NULL)
+		if (!hrp->hrp_thrs)
 			continue; /* uninitialized */
 		for (j = 0; j < hrp->hrp_nthrs; j++)
 			wake_up_all(&hrp->hrp_thrs[j].hrt_waitq);
 	}
 
 	cfs_percpt_for_each(hrp, i, ptlrpc_hr.hr_partitions) {
-		if (hrp->hrp_thrs == NULL)
+		if (!hrp->hrp_thrs)
 			continue; /* uninitialized */
 		wait_event(ptlrpc_hr.hr_waitq,
 			       atomic_read(&hrp->hrp_nstopped) ==
@@ -2255,24 +2286,27 @@ static int ptlrpc_start_hr_threads(void)
 
 		for (j = 0; j < hrp->hrp_nthrs; j++) {
 			struct	ptlrpc_hr_thread *hrt = &hrp->hrp_thrs[j];
+			struct task_struct *task;
 
-			rc = PTR_ERR(kthread_run(ptlrpc_hr_main,
+			task = kthread_run(ptlrpc_hr_main,
 						 &hrp->hrp_thrs[j],
 						 "ptlrpc_hr%02d_%03d",
 						 hrp->hrp_cpt,
-						 hrt->hrt_id));
-			if (IS_ERR_VALUE(rc))
+						 hrt->hrt_id);
+			if (IS_ERR(task)) {
+				rc = PTR_ERR(task);
 				break;
+			}
 		}
 		wait_event(ptlrpc_hr.hr_waitq,
 			       atomic_read(&hrp->hrp_nstarted) == j);
-		if (!IS_ERR_VALUE(rc))
-			continue;
 
-		CERROR("Reply handling thread %d:%d Failed on starting: rc = %d\n",
-		       i, j, rc);
-		ptlrpc_stop_hr_threads();
-		return rc;
+		if (rc < 0) {
+			CERROR("cannot start reply handler thread %d:%d: rc = %d\n",
+			       i, j, rc);
+			ptlrpc_stop_hr_threads();
+			return rc;
+		}
 	}
 	return 0;
 }
@@ -2333,7 +2367,7 @@ static void ptlrpc_stop_all_threads(struct ptlrpc_service *svc)
 	int i;
 
 	ptlrpc_service_for_each_part(svcpt, i, svc) {
-		if (svcpt->scp_service != NULL)
+		if (svcpt->scp_service)
 			ptlrpc_svcpt_stop_threads(svcpt);
 	}
 }
@@ -2374,10 +2408,9 @@ int ptlrpc_start_thread(struct ptlrpc_service_part *svcpt, int wait)
 	struct l_wait_info lwi = { 0 };
 	struct ptlrpc_thread *thread;
 	struct ptlrpc_service *svc;
+	struct task_struct *task;
 	int rc;
 
-	LASSERT(svcpt != NULL);
-
 	svc = svcpt->scp_service;
 
 	CDEBUG(D_RPCTRACE, "%s[%d] started %d min %d max %d\n",
@@ -2396,7 +2429,7 @@ int ptlrpc_start_thread(struct ptlrpc_service_part *svcpt, int wait)
 	thread = kzalloc_node(sizeof(*thread), GFP_NOFS,
 			      cfs_cpt_spread_node(svc->srv_cptable,
 						  svcpt->scp_cpt));
-	if (thread == NULL)
+	if (!thread)
 		return -ENOMEM;
 	init_waitqueue_head(&thread->t_ctl_waitq);
 
@@ -2409,7 +2442,8 @@ int ptlrpc_start_thread(struct ptlrpc_service_part *svcpt, int wait)
 
 	if (svcpt->scp_nthrs_starting != 0) {
 		/* serialize starting because some modules (obdfilter)
-		 * might require unique and contiguous t_id */
+		 * might require unique and contiguous t_id
+		 */
 		LASSERT(svcpt->scp_nthrs_starting == 1);
 		spin_unlock(&svcpt->scp_lock);
 		kfree(thread);
@@ -2442,9 +2476,10 @@ int ptlrpc_start_thread(struct ptlrpc_service_part *svcpt, int wait)
 	}
 
 	CDEBUG(D_RPCTRACE, "starting thread '%s'\n", thread->t_name);
-	rc = PTR_ERR(kthread_run(ptlrpc_main, thread, "%s", thread->t_name));
-	if (IS_ERR_VALUE(rc)) {
-		CERROR("cannot start thread '%s': rc %d\n",
+	task = kthread_run(ptlrpc_main, thread, "%s", thread->t_name);
+	if (IS_ERR(task)) {
+		rc = PTR_ERR(task);
+		CERROR("cannot start thread '%s': rc = %d\n",
 		       thread->t_name, rc);
 		spin_lock(&svcpt->scp_lock);
 		--svcpt->scp_nthrs_starting;
@@ -2488,7 +2523,7 @@ int ptlrpc_hr_init(void)
 
 	ptlrpc_hr.hr_partitions = cfs_percpt_alloc(ptlrpc_hr.hr_cpt_table,
 						   sizeof(*hrp));
-	if (ptlrpc_hr.hr_partitions == NULL)
+	if (!ptlrpc_hr.hr_partitions)
 		return -ENOMEM;
 
 	init_waitqueue_head(&ptlrpc_hr.hr_waitq);
@@ -2509,7 +2544,7 @@ int ptlrpc_hr_init(void)
 			kzalloc_node(hrp->hrp_nthrs * sizeof(*hrt), GFP_NOFS,
 				cfs_cpt_spread_node(ptlrpc_hr.hr_cpt_table,
 						    i));
-		if (hrp->hrp_thrs == NULL) {
+		if (!hrp->hrp_thrs) {
 			rc = -ENOMEM;
 			goto out;
 		}
@@ -2537,7 +2572,7 @@ void ptlrpc_hr_fini(void)
 	struct ptlrpc_hr_partition *hrp;
 	int i;
 
-	if (ptlrpc_hr.hr_partitions == NULL)
+	if (!ptlrpc_hr.hr_partitions)
 		return;
 
 	ptlrpc_stop_hr_threads();
@@ -2577,7 +2612,7 @@ ptlrpc_service_del_atimer(struct ptlrpc_service *svc)
 
 	/* early disarm AT timer... */
 	ptlrpc_service_for_each_part(svcpt, i, svc) {
-		if (svcpt->scp_service != NULL)
+		if (svcpt->scp_service)
 			del_timer(&svcpt->scp_at_timer);
 	}
 }
@@ -2592,18 +2627,20 @@ ptlrpc_service_unlink_rqbd(struct ptlrpc_service *svc)
 	int i;
 
 	/* All history will be culled when the next request buffer is
-	 * freed in ptlrpc_service_purge_all() */
+	 * freed in ptlrpc_service_purge_all()
+	 */
 	svc->srv_hist_nrqbds_cpt_max = 0;
 
 	rc = LNetClearLazyPortal(svc->srv_req_portal);
 	LASSERT(rc == 0);
 
 	ptlrpc_service_for_each_part(svcpt, i, svc) {
-		if (svcpt->scp_service == NULL)
+		if (!svcpt->scp_service)
 			break;
 
 		/* Unlink all the request buffers.  This forces a 'final'
-		 * event with its 'unlink' flag set for each posted rqbd */
+		 * event with its 'unlink' flag set for each posted rqbd
+		 */
 		list_for_each_entry(rqbd, &svcpt->scp_rqbd_posted,
 					rqbd_list) {
 			rc = LNetMDUnlink(rqbd->rqbd_md_h);
@@ -2612,17 +2649,19 @@ ptlrpc_service_unlink_rqbd(struct ptlrpc_service *svc)
 	}
 
 	ptlrpc_service_for_each_part(svcpt, i, svc) {
-		if (svcpt->scp_service == NULL)
+		if (!svcpt->scp_service)
 			break;
 
 		/* Wait for the network to release any buffers
-		 * it's currently filling */
+		 * it's currently filling
+		 */
 		spin_lock(&svcpt->scp_lock);
 		while (svcpt->scp_nrqbds_posted != 0) {
 			spin_unlock(&svcpt->scp_lock);
 			/* Network access will complete in finite time but
 			 * the HUGE timeout lets us CWARN for visibility
-			 * of sluggish NALs */
+			 * of sluggish LNDs
+			 */
 			lwi = LWI_TIMEOUT_INTERVAL(
 					cfs_time_seconds(LONG_UNLINK),
 					cfs_time_seconds(1), NULL, NULL);
@@ -2648,7 +2687,7 @@ ptlrpc_service_purge_all(struct ptlrpc_service *svc)
 	int i;
 
 	ptlrpc_service_for_each_part(svcpt, i, svc) {
-		if (svcpt->scp_service == NULL)
+		if (!svcpt->scp_service)
 			break;
 
 		spin_lock(&svcpt->scp_rep_lock);
@@ -2663,7 +2702,8 @@ ptlrpc_service_purge_all(struct ptlrpc_service *svc)
 
 		/* purge the request queue.  NB No new replies (rqbds
 		 * all unlinked) and no service threads, so I'm the only
-		 * thread noodling the request queue now */
+		 * thread noodling the request queue now
+		 */
 		while (!list_empty(&svcpt->scp_req_incoming)) {
 			req = list_entry(svcpt->scp_req_incoming.next,
 					     struct ptlrpc_request, rq_list);
@@ -2682,11 +2722,13 @@ ptlrpc_service_purge_all(struct ptlrpc_service *svc)
 		LASSERT(svcpt->scp_nreqs_incoming == 0);
 		LASSERT(svcpt->scp_nreqs_active == 0);
 		/* history should have been culled by
-		 * ptlrpc_server_finish_request */
+		 * ptlrpc_server_finish_request
+		 */
 		LASSERT(svcpt->scp_hist_nrqbds == 0);
 
 		/* Now free all the request buffers since nothing
-		 * references them any more... */
+		 * references them any more...
+		 */
 
 		while (!list_empty(&svcpt->scp_rqbd_idle)) {
 			rqbd = list_entry(svcpt->scp_rqbd_idle.next,
@@ -2714,7 +2756,7 @@ ptlrpc_service_free(struct ptlrpc_service *svc)
 	int i;
 
 	ptlrpc_service_for_each_part(svcpt, i, svc) {
-		if (svcpt->scp_service == NULL)
+		if (!svcpt->scp_service)
 			break;
 
 		/* In case somebody rearmed this in the meantime */
@@ -2730,7 +2772,7 @@ ptlrpc_service_free(struct ptlrpc_service *svc)
 	ptlrpc_service_for_each_part(svcpt, i, svc)
 		kfree(svcpt);
 
-	if (svc->srv_cpts != NULL)
+	if (svc->srv_cpts)
 		cfs_expr_list_values_free(svc->srv_cpts, svc->srv_ncpts);
 
 	kfree(svc);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c
index 61d9ca9..3ffd2d9 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c
@@ -333,17 +333,9 @@ void lustre_assert_wire_constants(void)
 	CLASSERT(LDLM_MAX_TYPE == 14);
 	CLASSERT(LUSTRE_RES_ID_SEQ_OFF == 0);
 	CLASSERT(LUSTRE_RES_ID_VER_OID_OFF == 1);
-	LASSERTF(UPDATE_OBJ == 1000, "found %lld\n",
-		 (long long)UPDATE_OBJ);
-	LASSERTF(UPDATE_LAST_OPC == 1001, "found %lld\n",
-		 (long long)UPDATE_LAST_OPC);
 	CLASSERT(LUSTRE_RES_ID_QUOTA_SEQ_OFF == 2);
 	CLASSERT(LUSTRE_RES_ID_QUOTA_VER_OID_OFF == 3);
 	CLASSERT(LUSTRE_RES_ID_HSH_OFF == 3);
-	CLASSERT(LQUOTA_TYPE_USR == 0);
-	CLASSERT(LQUOTA_TYPE_GRP == 1);
-	CLASSERT(LQUOTA_RES_MD == 1);
-	CLASSERT(LQUOTA_RES_DT == 2);
 	LASSERTF(OBD_PING == 400, "found %lld\n",
 		 (long long)OBD_PING);
 	LASSERTF(OBD_LOG_CANCEL == 401, "found %lld\n",
@@ -437,30 +429,6 @@ void lustre_assert_wire_constants(void)
 		(unsigned)LMAC_NOT_IN_OI);
 	LASSERTF(LMAC_FID_ON_OST == 0x00000008UL, "found 0x%.8xUL\n",
 		(unsigned)LMAC_FID_ON_OST);
-	LASSERTF(OBJ_CREATE == 1, "found %lld\n",
-		 (long long)OBJ_CREATE);
-	LASSERTF(OBJ_DESTROY == 2, "found %lld\n",
-		 (long long)OBJ_DESTROY);
-	LASSERTF(OBJ_REF_ADD == 3, "found %lld\n",
-		 (long long)OBJ_REF_ADD);
-	LASSERTF(OBJ_REF_DEL == 4, "found %lld\n",
-		 (long long)OBJ_REF_DEL);
-	LASSERTF(OBJ_ATTR_SET == 5, "found %lld\n",
-		 (long long)OBJ_ATTR_SET);
-	LASSERTF(OBJ_ATTR_GET == 6, "found %lld\n",
-		 (long long)OBJ_ATTR_GET);
-	LASSERTF(OBJ_XATTR_SET == 7, "found %lld\n",
-		 (long long)OBJ_XATTR_SET);
-	LASSERTF(OBJ_XATTR_GET == 8, "found %lld\n",
-		 (long long)OBJ_XATTR_GET);
-	LASSERTF(OBJ_INDEX_LOOKUP == 9, "found %lld\n",
-		 (long long)OBJ_INDEX_LOOKUP);
-	LASSERTF(OBJ_INDEX_LOOKUP == 9, "found %lld\n",
-		 (long long)OBJ_INDEX_LOOKUP);
-	LASSERTF(OBJ_INDEX_INSERT == 10, "found %lld\n",
-		 (long long)OBJ_INDEX_INSERT);
-	LASSERTF(OBJ_INDEX_DELETE == 11, "found %lld\n",
-		 (long long)OBJ_INDEX_DELETE);
 
 	/* Checks for struct ost_id */
 	LASSERTF((int)sizeof(struct ost_id) == 16, "found %lld\n",
@@ -587,9 +555,6 @@ void lustre_assert_wire_constants(void)
 		 (long long)LDF_COLLIDE);
 	LASSERTF(LU_PAGE_SIZE == 4096, "found %lld\n",
 		 (long long)LU_PAGE_SIZE);
-	/* Checks for union lu_page */
-	LASSERTF((int)sizeof(union lu_page) == 4096, "found %lld\n",
-		 (long long)(int)sizeof(union lu_page));
 
 	/* Checks for struct lustre_handle */
 	LASSERTF((int)sizeof(struct lustre_handle) == 8, "found %lld\n",
@@ -1535,11 +1500,6 @@ void lustre_assert_wire_constants(void)
 	LASSERTF((int)sizeof(union lquota_id) == 16, "found %lld\n",
 		 (long long)(int)sizeof(union lquota_id));
 
-	LASSERTF(QUOTABLOCK_BITS == 10, "found %lld\n",
-		 (long long)QUOTABLOCK_BITS);
-	LASSERTF(QUOTABLOCK_SIZE == 1024, "found %lld\n",
-		 (long long)QUOTABLOCK_SIZE);
-
 	/* Checks for struct obd_quotactl */
 	LASSERTF((int)sizeof(struct obd_quotactl) == 112, "found %lld\n",
 		 (long long)(int)sizeof(struct obd_quotactl));
@@ -1642,138 +1602,6 @@ void lustre_assert_wire_constants(void)
 	LASSERTF(Q_FINVALIDATE == 0x800104, "found 0x%.8x\n",
 		Q_FINVALIDATE);
 
-	/* Checks for struct lquota_acct_rec */
-	LASSERTF((int)sizeof(struct lquota_acct_rec) == 16, "found %lld\n",
-		 (long long)(int)sizeof(struct lquota_acct_rec));
-	LASSERTF((int)offsetof(struct lquota_acct_rec, bspace) == 0, "found %lld\n",
-		 (long long)(int)offsetof(struct lquota_acct_rec, bspace));
-	LASSERTF((int)sizeof(((struct lquota_acct_rec *)0)->bspace) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct lquota_acct_rec *)0)->bspace));
-	LASSERTF((int)offsetof(struct lquota_acct_rec, ispace) == 8, "found %lld\n",
-		 (long long)(int)offsetof(struct lquota_acct_rec, ispace));
-	LASSERTF((int)sizeof(((struct lquota_acct_rec *)0)->ispace) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct lquota_acct_rec *)0)->ispace));
-
-	/* Checks for struct lquota_glb_rec */
-	LASSERTF((int)sizeof(struct lquota_glb_rec) == 32, "found %lld\n",
-		 (long long)(int)sizeof(struct lquota_glb_rec));
-	LASSERTF((int)offsetof(struct lquota_glb_rec, qbr_hardlimit) == 0, "found %lld\n",
-		 (long long)(int)offsetof(struct lquota_glb_rec, qbr_hardlimit));
-	LASSERTF((int)sizeof(((struct lquota_glb_rec *)0)->qbr_hardlimit) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct lquota_glb_rec *)0)->qbr_hardlimit));
-	LASSERTF((int)offsetof(struct lquota_glb_rec, qbr_softlimit) == 8, "found %lld\n",
-		 (long long)(int)offsetof(struct lquota_glb_rec, qbr_softlimit));
-	LASSERTF((int)sizeof(((struct lquota_glb_rec *)0)->qbr_softlimit) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct lquota_glb_rec *)0)->qbr_softlimit));
-	LASSERTF((int)offsetof(struct lquota_glb_rec, qbr_time) == 16, "found %lld\n",
-		 (long long)(int)offsetof(struct lquota_glb_rec, qbr_time));
-	LASSERTF((int)sizeof(((struct lquota_glb_rec *)0)->qbr_time) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct lquota_glb_rec *)0)->qbr_time));
-	LASSERTF((int)offsetof(struct lquota_glb_rec, qbr_granted) == 24, "found %lld\n",
-		 (long long)(int)offsetof(struct lquota_glb_rec, qbr_granted));
-	LASSERTF((int)sizeof(((struct lquota_glb_rec *)0)->qbr_granted) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct lquota_glb_rec *)0)->qbr_granted));
-
-	/* Checks for struct lquota_slv_rec */
-	LASSERTF((int)sizeof(struct lquota_slv_rec) == 8, "found %lld\n",
-		 (long long)(int)sizeof(struct lquota_slv_rec));
-	LASSERTF((int)offsetof(struct lquota_slv_rec, qsr_granted) == 0, "found %lld\n",
-		 (long long)(int)offsetof(struct lquota_slv_rec, qsr_granted));
-	LASSERTF((int)sizeof(((struct lquota_slv_rec *)0)->qsr_granted) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct lquota_slv_rec *)0)->qsr_granted));
-
-	/* Checks for struct idx_info */
-	LASSERTF((int)sizeof(struct idx_info) == 80, "found %lld\n",
-		 (long long)(int)sizeof(struct idx_info));
-	LASSERTF((int)offsetof(struct idx_info, ii_magic) == 0, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_magic));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_magic) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_magic));
-	LASSERTF((int)offsetof(struct idx_info, ii_flags) == 4, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_flags));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_flags) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_flags));
-	LASSERTF((int)offsetof(struct idx_info, ii_count) == 8, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_count));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_count) == 2, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_count));
-	LASSERTF((int)offsetof(struct idx_info, ii_pad0) == 10, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_pad0));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_pad0) == 2, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_pad0));
-	LASSERTF((int)offsetof(struct idx_info, ii_attrs) == 12, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_attrs));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_attrs) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_attrs));
-	LASSERTF((int)offsetof(struct idx_info, ii_fid) == 16, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_fid));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_fid) == 16, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_fid));
-	LASSERTF((int)offsetof(struct idx_info, ii_version) == 32, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_version));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_version) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_version));
-	LASSERTF((int)offsetof(struct idx_info, ii_hash_start) == 40, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_hash_start));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_hash_start) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_hash_start));
-	LASSERTF((int)offsetof(struct idx_info, ii_hash_end) == 48, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_hash_end));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_hash_end) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_hash_end));
-	LASSERTF((int)offsetof(struct idx_info, ii_keysize) == 56, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_keysize));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_keysize) == 2, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_keysize));
-	LASSERTF((int)offsetof(struct idx_info, ii_recsize) == 58, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_recsize));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_recsize) == 2, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_recsize));
-	LASSERTF((int)offsetof(struct idx_info, ii_pad1) == 60, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_pad1));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_pad1) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_pad1));
-	LASSERTF((int)offsetof(struct idx_info, ii_pad2) == 64, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_pad2));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_pad2) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_pad2));
-	LASSERTF((int)offsetof(struct idx_info, ii_pad3) == 72, "found %lld\n",
-		 (long long)(int)offsetof(struct idx_info, ii_pad3));
-	LASSERTF((int)sizeof(((struct idx_info *)0)->ii_pad3) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct idx_info *)0)->ii_pad3));
-	CLASSERT(IDX_INFO_MAGIC == 0x3D37CC37);
-
-	/* Checks for struct lu_idxpage */
-	LASSERTF((int)sizeof(struct lu_idxpage) == 16, "found %lld\n",
-		 (long long)(int)sizeof(struct lu_idxpage));
-	LASSERTF((int)offsetof(struct lu_idxpage, lip_magic) == 0, "found %lld\n",
-		 (long long)(int)offsetof(struct lu_idxpage, lip_magic));
-	LASSERTF((int)sizeof(((struct lu_idxpage *)0)->lip_magic) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct lu_idxpage *)0)->lip_magic));
-	LASSERTF((int)offsetof(struct lu_idxpage, lip_flags) == 4, "found %lld\n",
-		 (long long)(int)offsetof(struct lu_idxpage, lip_flags));
-	LASSERTF((int)sizeof(((struct lu_idxpage *)0)->lip_flags) == 2, "found %lld\n",
-		 (long long)(int)sizeof(((struct lu_idxpage *)0)->lip_flags));
-	LASSERTF((int)offsetof(struct lu_idxpage, lip_nr) == 6, "found %lld\n",
-		 (long long)(int)offsetof(struct lu_idxpage, lip_nr));
-	LASSERTF((int)sizeof(((struct lu_idxpage *)0)->lip_nr) == 2, "found %lld\n",
-		 (long long)(int)sizeof(((struct lu_idxpage *)0)->lip_nr));
-	LASSERTF((int)offsetof(struct lu_idxpage, lip_pad0) == 8, "found %lld\n",
-		 (long long)(int)offsetof(struct lu_idxpage, lip_pad0));
-	LASSERTF((int)sizeof(((struct lu_idxpage *)0)->lip_pad0) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct lu_idxpage *)0)->lip_pad0));
-	CLASSERT(LIP_MAGIC == 0x8A6D6B6C);
-	LASSERTF(LIP_HDR_SIZE == 16, "found %lld\n",
-		 (long long)LIP_HDR_SIZE);
-	LASSERTF(II_FL_NOHASH == 1, "found %lld\n",
-		 (long long)II_FL_NOHASH);
-	LASSERTF(II_FL_VARKEY == 2, "found %lld\n",
-		 (long long)II_FL_VARKEY);
-	LASSERTF(II_FL_VARREC == 4, "found %lld\n",
-		 (long long)II_FL_VARREC);
-	LASSERTF(II_FL_NONUNQ == 8, "found %lld\n",
-		 (long long)II_FL_NONUNQ);
-
 	/* Checks for struct niobuf_remote */
 	LASSERTF((int)sizeof(struct niobuf_remote) == 16, "found %lld\n",
 		 (long long)(int)sizeof(struct niobuf_remote));
@@ -3753,50 +3581,6 @@ void lustre_assert_wire_constants(void)
 	LASSERTF((int)sizeof(((struct ll_fiemap_info_key *)0)->fiemap) == 32, "found %lld\n",
 		 (long long)(int)sizeof(((struct ll_fiemap_info_key *)0)->fiemap));
 
-	/* Checks for struct quota_body */
-	LASSERTF((int)sizeof(struct quota_body) == 112, "found %lld\n",
-		 (long long)(int)sizeof(struct quota_body));
-	LASSERTF((int)offsetof(struct quota_body, qb_fid) == 0, "found %lld\n",
-		 (long long)(int)offsetof(struct quota_body, qb_fid));
-	LASSERTF((int)sizeof(((struct quota_body *)0)->qb_fid) == 16, "found %lld\n",
-		 (long long)(int)sizeof(((struct quota_body *)0)->qb_fid));
-	LASSERTF((int)offsetof(struct quota_body, qb_id) == 16, "found %lld\n",
-		 (long long)(int)offsetof(struct quota_body, qb_id));
-	LASSERTF((int)sizeof(((struct quota_body *)0)->qb_id) == 16, "found %lld\n",
-		 (long long)(int)sizeof(((struct quota_body *)0)->qb_id));
-	LASSERTF((int)offsetof(struct quota_body, qb_flags) == 32, "found %lld\n",
-		 (long long)(int)offsetof(struct quota_body, qb_flags));
-	LASSERTF((int)sizeof(((struct quota_body *)0)->qb_flags) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct quota_body *)0)->qb_flags));
-	LASSERTF((int)offsetof(struct quota_body, qb_padding) == 36, "found %lld\n",
-		 (long long)(int)offsetof(struct quota_body, qb_padding));
-	LASSERTF((int)sizeof(((struct quota_body *)0)->qb_padding) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct quota_body *)0)->qb_padding));
-	LASSERTF((int)offsetof(struct quota_body, qb_count) == 40, "found %lld\n",
-		 (long long)(int)offsetof(struct quota_body, qb_count));
-	LASSERTF((int)sizeof(((struct quota_body *)0)->qb_count) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct quota_body *)0)->qb_count));
-	LASSERTF((int)offsetof(struct quota_body, qb_usage) == 48, "found %lld\n",
-		 (long long)(int)offsetof(struct quota_body, qb_usage));
-	LASSERTF((int)sizeof(((struct quota_body *)0)->qb_usage) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct quota_body *)0)->qb_usage));
-	LASSERTF((int)offsetof(struct quota_body, qb_slv_ver) == 56, "found %lld\n",
-		 (long long)(int)offsetof(struct quota_body, qb_slv_ver));
-	LASSERTF((int)sizeof(((struct quota_body *)0)->qb_slv_ver) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct quota_body *)0)->qb_slv_ver));
-	LASSERTF((int)offsetof(struct quota_body, qb_lockh) == 64, "found %lld\n",
-		 (long long)(int)offsetof(struct quota_body, qb_lockh));
-	LASSERTF((int)sizeof(((struct quota_body *)0)->qb_lockh) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct quota_body *)0)->qb_lockh));
-	LASSERTF((int)offsetof(struct quota_body, qb_glb_lockh) == 72, "found %lld\n",
-		 (long long)(int)offsetof(struct quota_body, qb_glb_lockh));
-	LASSERTF((int)sizeof(((struct quota_body *)0)->qb_glb_lockh) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct quota_body *)0)->qb_glb_lockh));
-	LASSERTF((int)offsetof(struct quota_body, qb_padding1[4]) == 112, "found %lld\n",
-		 (long long)(int)offsetof(struct quota_body, qb_padding1[4]));
-	LASSERTF((int)sizeof(((struct quota_body *)0)->qb_padding1[4]) == 8, "found %lld\n",
-		 (long long)(int)sizeof(((struct quota_body *)0)->qb_padding1[4]));
-
 	/* Checks for struct mgs_target_info */
 	LASSERTF((int)sizeof(struct mgs_target_info) == 4544, "found %lld\n",
 		 (long long)(int)sizeof(struct mgs_target_info));
@@ -4431,60 +4215,4 @@ void lustre_assert_wire_constants(void)
 	LASSERTF(sizeof(((struct hsm_user_import *)0)->hui_archive_id) == 4,
 		 "found %lld\n",
 	      (long long)sizeof(((struct hsm_user_import *)0)->hui_archive_id));
-
-	/* Checks for struct update_buf */
-	LASSERTF((int)sizeof(struct update_buf) == 8, "found %lld\n",
-		 (long long)(int)sizeof(struct update_buf));
-	LASSERTF((int)offsetof(struct update_buf, ub_magic) == 0, "found %lld\n",
-		 (long long)(int)offsetof(struct update_buf, ub_magic));
-	LASSERTF((int)sizeof(((struct update_buf *)0)->ub_magic) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct update_buf *)0)->ub_magic));
-	LASSERTF((int)offsetof(struct update_buf, ub_count) == 4, "found %lld\n",
-		 (long long)(int)offsetof(struct update_buf, ub_count));
-	LASSERTF((int)sizeof(((struct update_buf *)0)->ub_count) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct update_buf *)0)->ub_count));
-	LASSERTF((int)offsetof(struct update_buf, ub_bufs) == 8, "found %lld\n",
-		 (long long)(int)offsetof(struct update_buf, ub_bufs));
-	LASSERTF((int)sizeof(((struct update_buf *)0)->ub_bufs) == 0, "found %lld\n",
-		 (long long)(int)sizeof(((struct update_buf *)0)->ub_bufs));
-
-	/* Checks for struct update_reply */
-	LASSERTF((int)sizeof(struct update_reply) == 8, "found %lld\n",
-		 (long long)(int)sizeof(struct update_reply));
-	LASSERTF((int)offsetof(struct update_reply, ur_version) == 0, "found %lld\n",
-		 (long long)(int)offsetof(struct update_reply, ur_version));
-	LASSERTF((int)sizeof(((struct update_reply *)0)->ur_version) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct update_reply *)0)->ur_version));
-	LASSERTF((int)offsetof(struct update_reply, ur_count) == 4, "found %lld\n",
-		 (long long)(int)offsetof(struct update_reply, ur_count));
-	LASSERTF((int)sizeof(((struct update_reply *)0)->ur_count) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct update_reply *)0)->ur_count));
-	LASSERTF((int)offsetof(struct update_reply, ur_lens) == 8, "found %lld\n",
-		 (long long)(int)offsetof(struct update_reply, ur_lens));
-	LASSERTF((int)sizeof(((struct update_reply *)0)->ur_lens) == 0, "found %lld\n",
-		 (long long)(int)sizeof(((struct update_reply *)0)->ur_lens));
-
-	/* Checks for struct update */
-	LASSERTF((int)sizeof(struct update) == 56, "found %lld\n",
-		 (long long)(int)sizeof(struct update));
-	LASSERTF((int)offsetof(struct update, u_type) == 0, "found %lld\n",
-		 (long long)(int)offsetof(struct update, u_type));
-	LASSERTF((int)sizeof(((struct update *)0)->u_type) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct update *)0)->u_type));
-	LASSERTF((int)offsetof(struct update, u_batchid) == 4, "found %lld\n",
-		 (long long)(int)offsetof(struct update, u_batchid));
-	LASSERTF((int)sizeof(((struct update *)0)->u_batchid) == 4, "found %lld\n",
-		 (long long)(int)sizeof(((struct update *)0)->u_batchid));
-	LASSERTF((int)offsetof(struct update, u_fid) == 8, "found %lld\n",
-		 (long long)(int)offsetof(struct update, u_fid));
-	LASSERTF((int)sizeof(((struct update *)0)->u_fid) == 16, "found %lld\n",
-		 (long long)(int)sizeof(((struct update *)0)->u_fid));
-	LASSERTF((int)offsetof(struct update, u_lens) == 24, "found %lld\n",
-		 (long long)(int)offsetof(struct update, u_lens));
-	LASSERTF((int)sizeof(((struct update *)0)->u_lens) == 32, "found %lld\n",
-		 (long long)(int)sizeof(((struct update *)0)->u_lens));
-	LASSERTF((int)offsetof(struct update, u_bufs) == 56, "found %lld\n",
-		 (long long)(int)offsetof(struct update, u_bufs));
-	LASSERTF((int)sizeof(((struct update *)0)->u_bufs) == 0, "found %lld\n",
-		 (long long)(int)sizeof(((struct update *)0)->u_bufs));
 }
diff --git a/drivers/staging/media/davinci_vpfe/davinci_vpfe_user.h b/drivers/staging/media/davinci_vpfe/davinci_vpfe_user.h
index 7b7e7b2..f4f35c9 100644
--- a/drivers/staging/media/davinci_vpfe/davinci_vpfe_user.h
+++ b/drivers/staging/media/davinci_vpfe/davinci_vpfe_user.h
@@ -538,8 +538,8 @@ struct vpfe_isif_raw_config {
 };
 
 /**********************************************************************
-      IPIPE API Structures
-**********************************************************************/
+ *	IPIPE API Structures
+ **********************************************************************/
 
 /* IPIPE module configurations */
 
diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipe.c b/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
index ac78ed2..ff47a8f3 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
@@ -1350,21 +1350,16 @@ error:
  */
 static long ipipe_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
 {
-	int ret = 0;
-
 	switch (cmd) {
 	case VIDIOC_VPFE_IPIPE_S_CONFIG:
-		ret = ipipe_s_config(sd, arg);
-		break;
+		return ipipe_s_config(sd, arg);
 
 	case VIDIOC_VPFE_IPIPE_G_CONFIG:
-		ret = ipipe_g_config(sd, arg);
-		break;
+		return ipipe_g_config(sd, arg);
 
 	default:
-		ret = -ENOIOCTLCMD;
+		return -ENOIOCTLCMD;
 	}
-	return ret;
 }
 
 void vpfe_ipipe_enable(struct vpfe_device *vpfe_dev, int en)
diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c b/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c
index b1d5e23..0792fbd 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c
@@ -682,8 +682,10 @@ ipipe_set_rgb2rgb_regs(void __iomem *base_addr, unsigned int id,
 	ipipe_clock_enable(base_addr);
 
 	if (id == IPIPE_RGB2RGB_2) {
-		/* For second RGB module, gain integer is 3 bits instead
-		of 4, offset has 11 bits insread of 13 */
+		/*
+		 * For second RGB module, gain integer is 3 bits instead
+		 * of 4, offset has 11 bits insread of 13
+		 */
 		offset = RGB2_MUL_BASE;
 		integ_mask = 0x7;
 		offset_mask = RGB2RGB_2_OFST_MASK;
@@ -792,8 +794,10 @@ ipipe_set_3d_lut_regs(void __iomem *base_addr, void __iomem *isp5_base_addr,
 	/* valied table */
 	tbl = lut_3d->table;
 	for (i = 0; i < VPFE_IPIPE_MAX_SIZE_3D_LUT; i++) {
-		/* Each entry has 0-9 (B), 10-19 (G) and
-		20-29 R values */
+		/*
+		 * Each entry has 0-9 (B), 10-19 (G) and
+		 * 20-29 R values
+		 */
 		val = tbl[i].b & D3_LUT_ENTRY_MASK;
 		val |= (tbl[i].g & D3_LUT_ENTRY_MASK) <<
 			 D3_LUT_ENTRY_G_SHIFT;
diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.h b/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.h
index 2bf2f7a..7ee1572 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.h
+++ b/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.h
@@ -278,9 +278,10 @@
 /* Resizer Rescale Parameters */
 #define RSZ_EN_A		0x58
 #define RSZ_EN_B		0xe8
-/* offset of the registers to be added with base register of
-   either RSZ0 or RSZ1
-*/
+/*
+ * offset of the registers to be added with base register of
+ * either RSZ0 or RSZ1
+ */
 #define RSZ_MODE		0x4
 #define RSZ_420			0x8
 #define RSZ_I_VPS		0xc
diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c
index 633d645..6e4c87f 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c
@@ -641,8 +641,9 @@ ipipeif_try_format(struct vpfe_ipipeif_device *ipipeif,
 }
 
 static int
-ipipeif_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
-		     struct v4l2_subdev_frame_size_enum *fse)
+ipipeif_enum_frame_size(struct v4l2_subdev *sd,
+			struct v4l2_subdev_pad_config *cfg,
+			struct v4l2_subdev_frame_size_enum *fse)
 {
 	struct vpfe_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd);
 	struct v4l2_mbus_framefmt format;
diff --git a/drivers/staging/media/davinci_vpfe/dm365_isif.c b/drivers/staging/media/davinci_vpfe/dm365_isif.c
index cfad426..ae9202d 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_isif.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_isif.c
@@ -282,7 +282,8 @@ isif_config_format(struct vpfe_device *vpfe_dev, unsigned int pad)
  * @fmt: pointer to v4l2 subdev format structure
  */
 static void
-isif_try_format(struct vpfe_isif_device *isif, struct v4l2_subdev_pad_config *cfg,
+isif_try_format(struct vpfe_isif_device *isif,
+		struct v4l2_subdev_pad_config *cfg,
 		struct v4l2_subdev_format *fmt)
 {
 	unsigned int width = fmt->format.width;
@@ -625,21 +626,16 @@ static int isif_set_params(struct v4l2_subdev *sd, void *params)
  */
 static long isif_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
 {
-	int ret;
-
 	switch (cmd) {
 	case VIDIOC_VPFE_ISIF_S_RAW_PARAMS:
-		ret = isif_set_params(sd, arg);
-		break;
+		return isif_set_params(sd, arg);
 
 	case VIDIOC_VPFE_ISIF_G_RAW_PARAMS:
-		ret = isif_get_params(sd, arg);
-		break;
+		return isif_get_params(sd, arg);
 
 	default:
-		ret = -ENOIOCTLCMD;
+		return -ENOIOCTLCMD;
 	}
-	return ret;
 }
 
 static void isif_config_gain_offset(struct vpfe_isif_device *isif)
@@ -1399,8 +1395,9 @@ static int isif_set_stream(struct v4l2_subdev *sd, int enable)
  * @which: wanted subdev format.
  */
 static struct v4l2_mbus_framefmt *
-__isif_get_format(struct vpfe_isif_device *isif, struct v4l2_subdev_pad_config *cfg,
-		  unsigned int pad, enum v4l2_subdev_format_whence which)
+__isif_get_format(struct vpfe_isif_device *isif,
+		  struct v4l2_subdev_pad_config *cfg, unsigned int pad,
+		  enum v4l2_subdev_format_whence which)
 {
 	if (which == V4L2_SUBDEV_FORMAT_TRY) {
 		struct v4l2_subdev_format fmt;
diff --git a/drivers/staging/media/davinci_vpfe/dm365_resizer.c b/drivers/staging/media/davinci_vpfe/dm365_resizer.c
index 42de95e..3cd56cc 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_resizer.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_resizer.c
@@ -1387,8 +1387,9 @@ resizer_try_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
  * @fmt: pointer to v4l2 subdev format structure
  * return -EINVAL or zero on success
  */
-static int resizer_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
-			   struct v4l2_subdev_format *fmt)
+static int resizer_set_format(struct v4l2_subdev *sd,
+			      struct v4l2_subdev_pad_config *cfg,
+			      struct v4l2_subdev_format *fmt)
 {
 	struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd);
 	struct v4l2_mbus_framefmt *format;
@@ -1447,8 +1448,9 @@ static int resizer_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_con
  * @fmt: pointer to v4l2 subdev format structure
  * return -EINVAL or zero on success
  */
-static int resizer_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
-			   struct v4l2_subdev_format *fmt)
+static int resizer_get_format(struct v4l2_subdev *sd,
+			      struct v4l2_subdev_pad_config *cfg,
+			      struct v4l2_subdev_format *fmt)
 {
 	struct v4l2_mbus_framefmt *format;
 
@@ -1670,7 +1672,7 @@ static int resizer_link_setup(struct media_entity *entity,
 				resizer->crop_resizer.input =
 						RESIZER_CROP_INPUT_IPIPEIF;
 			else if (ipipe_source == IPIPE_OUTPUT_RESIZER)
-					resizer->crop_resizer.input =
+				resizer->crop_resizer.input =
 						RESIZER_CROP_INPUT_IPIPE;
 			else
 				return -EINVAL;
diff --git a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
index ec46f36..bf077f8 100644
--- a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
+++ b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
@@ -442,8 +442,10 @@ static int vpfe_register_entities(struct vpfe_device *vpfe_dev)
 
 	/* create links now, starting with external(i2c) entities */
 	for (i = 0; i < vpfe_dev->num_ext_subdevs; i++)
-		/* if entity has no pads (ex: amplifier),
-		   cant establish link */
+		/*
+		 * if entity has no pads (ex: amplifier),
+		 * cant establish link
+		 */
 		if (vpfe_dev->sd[i]->entity.num_pads) {
 			ret = media_create_pad_link(&vpfe_dev->sd[i]->entity,
 				0, &vpfe_dev->vpfe_isif.subdev.entity,
diff --git a/drivers/staging/media/davinci_vpfe/vpfe_video.c b/drivers/staging/media/davinci_vpfe/vpfe_video.c
index 3ec7e65..0a65405 100644
--- a/drivers/staging/media/davinci_vpfe/vpfe_video.c
+++ b/drivers/staging/media/davinci_vpfe/vpfe_video.c
@@ -172,21 +172,19 @@ static int vpfe_prepare_pipeline(struct vpfe_video_device *video)
 static int vpfe_update_pipe_state(struct vpfe_video_device *video)
 {
 	struct vpfe_pipeline *pipe = &video->pipe;
-	int ret;
 
-	ret = vpfe_prepare_pipeline(video);
-	if (ret)
-		return ret;
+	if (vpfe_prepare_pipeline(video))
+		return vpfe_prepare_pipeline(video);
 
-	/* Find out if there is any input video
-	  if yes, it is single shot.
-	*/
+	/*
+	 * Find out if there is any input video
+	 * if yes, it is single shot.
+	 */
 	if (pipe->input_num == 0) {
 		pipe->state = VPFE_PIPELINE_STREAM_CONTINUOUS;
-		ret = vpfe_update_current_ext_subdev(video);
-		if (ret) {
+		if (vpfe_update_current_ext_subdev(video)) {
 			pr_err("Invalid external subdev\n");
-			return ret;
+			return vpfe_update_current_ext_subdev(video);
 		}
 	} else {
 		pipe->state = VPFE_PIPELINE_STREAM_SINGLESHOT;
@@ -460,7 +458,7 @@ void vpfe_video_schedule_next_buffer(struct vpfe_video_device *video)
 	video->next_frm = list_entry(video->dma_queue.next,
 					struct vpfe_cap_buffer, list);
 
-	if (VPFE_PIPELINE_STREAM_SINGLESHOT == video->pipe.state)
+	if (video->pipe.state == VPFE_PIPELINE_STREAM_SINGLESHOT)
 		video->cur_frm = video->next_frm;
 
 	list_del(&video->next_frm->list);
@@ -529,10 +527,11 @@ static int vpfe_release(struct file *file)
 	if (fh->io_allowed) {
 		if (video->started) {
 			vpfe_stop_capture(video);
-			/* mark pipe state as stopped in vpfe_release(),
-			   as app might call streamon() after streamoff()
-			   in which case driver has to start streaming.
-			*/
+			/*
+			 * mark pipe state as stopped in vpfe_release(),
+			 * as app might call streamon() after streamoff()
+			 * in which case driver has to start streaming.
+			 */
 			video->pipe.state = VPFE_PIPELINE_STREAM_STOPPED;
 			vb2_streamoff(&video->buffer_queue,
 				      video->buffer_queue.type);
@@ -668,12 +667,13 @@ static int vpfe_enum_fmt(struct file *file, void  *priv,
 	struct v4l2_subdev *subdev;
 	struct v4l2_format format;
 	struct media_pad *remote;
-	int ret;
 
 	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_fmt\n");
 
-	/* since already subdev pad format is set,
-	only one pixel format is available */
+	/*
+	 * since already subdev pad format is set,
+	 * only one pixel format is available
+	 */
 	if (fmt->index > 0) {
 		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid index\n");
 		return -EINVAL;
@@ -695,11 +695,10 @@ static int vpfe_enum_fmt(struct file *file, void  *priv,
 	sd_fmt.pad = remote->index;
 	sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
 	/* get output format of remote subdev */
-	ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &sd_fmt);
-	if (ret) {
+	if (v4l2_subdev_call(subdev, pad, get_fmt, NULL, &sd_fmt)) {
 		v4l2_err(&vpfe_dev->v4l2_dev,
 			 "invalid remote subdev for video node\n");
-		return ret;
+		return v4l2_subdev_call(subdev, pad, get_fmt, NULL, &sd_fmt);
 	}
 	/* convert to pix format */
 	mbus.code = sd_fmt.format.code;
@@ -726,7 +725,6 @@ static int vpfe_s_fmt(struct file *file, void *priv,
 	struct vpfe_video_device *video = video_drvdata(file);
 	struct vpfe_device *vpfe_dev = video->vpfe_dev;
 	struct v4l2_format format;
-	int ret;
 
 	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_fmt\n");
 	/* If streaming is started, return error */
@@ -735,9 +733,8 @@ static int vpfe_s_fmt(struct file *file, void *priv,
 		return -EBUSY;
 	}
 	/* get adjacent subdev's output pad format */
-	ret = __vpfe_video_get_format(video, &format);
-	if (ret)
-		return ret;
+	if (__vpfe_video_get_format(video, &format))
+		return __vpfe_video_get_format(video, &format);
 	*fmt = format;
 	video->fmt = *fmt;
 	return 0;
@@ -760,13 +757,11 @@ static int vpfe_try_fmt(struct file *file, void *priv,
 	struct vpfe_video_device *video = video_drvdata(file);
 	struct vpfe_device *vpfe_dev = video->vpfe_dev;
 	struct v4l2_format format;
-	int ret;
 
 	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_try_fmt\n");
 	/* get adjacent subdev's output pad format */
-	ret = __vpfe_video_get_format(video, &format);
-	if (ret)
-		return ret;
+	if (__vpfe_video_get_format(video, &format))
+		return __vpfe_video_get_format(video, &format);
 
 	*fmt = format;
 	return 0;
@@ -843,9 +838,8 @@ static int vpfe_s_input(struct file *file, void *priv, unsigned int index)
 
 	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_input\n");
 
-	ret = mutex_lock_interruptible(&video->lock);
-	if (ret)
-		return ret;
+	if (mutex_lock_interruptible(&video->lock))
+		return mutex_lock_interruptible(&video->lock);
 	/*
 	 * If streaming is started return device busy
 	 * error
@@ -946,9 +940,8 @@ static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id std_id)
 	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_std\n");
 
 	/* Call decoder driver function to set the standard */
-	ret = mutex_lock_interruptible(&video->lock);
-	if (ret)
-		return ret;
+	if (mutex_lock_interruptible(&video->lock))
+		return mutex_lock_interruptible(&video->lock);
 	sdinfo = video->current_ext_subdev;
 	/* If streaming is started, return device busy error */
 	if (video->started) {
@@ -1328,15 +1321,14 @@ static int vpfe_reqbufs(struct file *file, void *priv,
 
 	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_reqbufs\n");
 
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != req_buf->type &&
-	    V4L2_BUF_TYPE_VIDEO_OUTPUT != req_buf->type) {
+	if (req_buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+	    req_buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT){
 		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buffer type\n");
 		return -EINVAL;
 	}
 
-	ret = mutex_lock_interruptible(&video->lock);
-	if (ret)
-		return ret;
+	if (mutex_lock_interruptible(&video->lock))
+		return mutex_lock_interruptible(&video->lock);
 
 	if (video->io_usrs != 0) {
 		v4l2_err(&vpfe_dev->v4l2_dev, "Only one IO user allowed\n");
@@ -1362,11 +1354,10 @@ static int vpfe_reqbufs(struct file *file, void *priv,
 	q->buf_struct_size = sizeof(struct vpfe_cap_buffer);
 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
 
-	ret = vb2_queue_init(q);
-	if (ret) {
+	if (vb2_queue_init(q)) {
 		v4l2_err(&vpfe_dev->v4l2_dev, "vb2_queue_init() failed\n");
 		vb2_dma_contig_cleanup_ctx(vpfe_dev->pdev);
-		return ret;
+		return vb2_queue_init(q);
 	}
 
 	fh->io_allowed = 1;
@@ -1390,8 +1381,8 @@ static int vpfe_querybuf(struct file *file, void *priv,
 
 	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querybuf\n");
 
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type &&
-	    V4L2_BUF_TYPE_VIDEO_OUTPUT != buf->type) {
+	if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+	    buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
 		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
 		return  -EINVAL;
 	}
@@ -1417,8 +1408,8 @@ static int vpfe_qbuf(struct file *file, void *priv,
 
 	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_qbuf\n");
 
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != p->type &&
-	    V4L2_BUF_TYPE_VIDEO_OUTPUT != p->type) {
+	if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+	    p->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
 		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
 		return -EINVAL;
 	}
@@ -1445,8 +1436,8 @@ static int vpfe_dqbuf(struct file *file, void *priv,
 
 	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_dqbuf\n");
 
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type &&
-	    V4L2_BUF_TYPE_VIDEO_OUTPUT != buf->type) {
+	if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+	    buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
 		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
 		return -EINVAL;
 	}
@@ -1478,8 +1469,8 @@ static int vpfe_streamon(struct file *file, void *priv,
 
 	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamon\n");
 
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type &&
-	    V4L2_BUF_TYPE_VIDEO_OUTPUT != buf_type) {
+	if (buf_type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+	    buf_type != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
 		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
 		return ret;
 	}
@@ -1495,7 +1486,7 @@ static int vpfe_streamon(struct file *file, void *priv,
 		return -EIO;
 	}
 	/* Validate the pipeline */
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE == buf_type) {
+	if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 		ret = vpfe_video_validate_pipeline(pipe);
 		if (ret < 0)
 			return ret;
@@ -1542,9 +1533,8 @@ static int vpfe_streamoff(struct file *file, void *priv,
 		return -EINVAL;
 	}
 
-	ret = mutex_lock_interruptible(&video->lock);
-	if (ret)
-		return ret;
+	if (mutex_lock_interruptible(&video->lock))
+		return mutex_lock_interruptible(&video->lock);
 
 	vpfe_stop_capture(video);
 	ret = vb2_streamoff(&video->buffer_queue, buf_type);
diff --git a/drivers/staging/most/hdm-dim2/dim2_hdm.c b/drivers/staging/most/hdm-dim2/dim2_hdm.c
index 6296aa5..c736310 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hdm.c
+++ b/drivers/staging/most/hdm-dim2/dim2_hdm.c
@@ -736,7 +736,7 @@ static int dim2_probe(struct platform_device *pdev)
 	int ret, i;
 	struct kobject *kobj;
 
-	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
 	if (!dev)
 		return -ENOMEM;
 
@@ -747,47 +747,31 @@ static int dim2_probe(struct platform_device *pdev)
 	test_dev = dev;
 #else
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		pr_err("no memory region defined\n");
-		ret = -ENOENT;
-		goto err_free_dev;
-	}
-
-	if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
-		pr_err("failed to request mem region\n");
-		ret = -EBUSY;
-		goto err_free_dev;
-	}
-
-	dev->io_base = ioremap(res->start, resource_size(res));
-	if (!dev->io_base) {
-		pr_err("failed to ioremap\n");
-		ret = -ENOMEM;
-		goto err_release_mem;
-	}
+	dev->io_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(dev->io_base))
+		return PTR_ERR(dev->io_base);
 
 	ret = platform_get_irq(pdev, 0);
 	if (ret < 0) {
-		pr_err("failed to get irq\n");
-		goto err_unmap_io;
+		dev_err(&pdev->dev, "failed to get irq\n");
+		return -ENODEV;
 	}
 	dev->irq_ahb0 = ret;
 
-	ret = request_irq(dev->irq_ahb0, dim2_ahb_isr, 0, "mlb_ahb0", dev);
+	ret = devm_request_irq(&pdev->dev, dev->irq_ahb0, dim2_ahb_isr, 0,
+			       "mlb_ahb0", dev);
 	if (ret) {
-		pr_err("failed to request IRQ: %d, err: %d\n",
-		       dev->irq_ahb0, ret);
-		goto err_unmap_io;
+		dev_err(&pdev->dev, "failed to request IRQ: %d, err: %d\n",
+			dev->irq_ahb0, ret);
+		return ret;
 	}
 #endif
 	init_waitqueue_head(&dev->netinfo_waitq);
 	dev->deliver_netinfo = 0;
 	dev->netinfo_task = kthread_run(&deliver_netinfo_thread, (void *)dev,
 					"dim2_netinfo");
-	if (IS_ERR(dev->netinfo_task)) {
+	if (IS_ERR(dev->netinfo_task))
 		ret = PTR_ERR(dev->netinfo_task);
-		goto err_free_irq;
-	}
 
 	for (i = 0; i < DMA_CHANNELS; i++) {
 		struct most_channel_capability *cap = dev->capabilities + i;
@@ -855,16 +839,6 @@ err_unreg_iface:
 	most_deregister_interface(&dev->most_iface);
 err_stop_thread:
 	kthread_stop(dev->netinfo_task);
-err_free_irq:
-#if !defined(ENABLE_HDM_TEST)
-	free_irq(dev->irq_ahb0, dev);
-err_unmap_io:
-	iounmap(dev->io_base);
-err_release_mem:
-	release_mem_region(res->start, resource_size(res));
-err_free_dev:
-#endif
-	kfree(dev);
 
 	return ret;
 }
@@ -878,7 +852,6 @@ err_free_dev:
 static int dim2_remove(struct platform_device *pdev)
 {
 	struct dim2_hdm *dev = platform_get_drvdata(pdev);
-	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	struct dim2_platform_data *pdata = pdev->dev.platform_data;
 	unsigned long flags;
 
@@ -892,13 +865,6 @@ static int dim2_remove(struct platform_device *pdev)
 	dim2_sysfs_destroy(&dev->bus);
 	most_deregister_interface(&dev->most_iface);
 	kthread_stop(dev->netinfo_task);
-#if !defined(ENABLE_HDM_TEST)
-	free_irq(dev->irq_ahb0, dev);
-	iounmap(dev->io_base);
-	release_mem_region(res->start, resource_size(res));
-#endif
-	kfree(dev);
-	platform_set_drvdata(pdev, NULL);
 
 	/*
 	 * break link to local platform_device_id struct
diff --git a/drivers/staging/most/hdm-dim2/dim2_sysfs.c b/drivers/staging/most/hdm-dim2/dim2_sysfs.c
index c5b10c7..2b28e4a 100644
--- a/drivers/staging/most/hdm-dim2/dim2_sysfs.c
+++ b/drivers/staging/most/hdm-dim2/dim2_sysfs.c
@@ -63,7 +63,6 @@ static ssize_t bus_kobj_attr_show(struct kobject *kobj, struct attribute *attr,
 static ssize_t bus_kobj_attr_store(struct kobject *kobj, struct attribute *attr,
 				   const char *buf, size_t count)
 {
-	ssize_t ret;
 	struct medialb_bus *bus =
 		container_of(kobj, struct medialb_bus, kobj_group);
 	struct bus_attr *xattr = container_of(attr, struct bus_attr, attr);
@@ -71,8 +70,7 @@ static ssize_t bus_kobj_attr_store(struct kobject *kobj, struct attribute *attr,
 	if (!xattr->store)
 		return -EIO;
 
-	ret = xattr->store(bus, buf, count);
-	return ret;
+	return xattr->store(bus, buf, count);
 }
 
 static struct sysfs_ops const bus_kobj_sysfs_ops = {
diff --git a/drivers/staging/most/hdm-usb/hdm_usb.c b/drivers/staging/most/hdm-usb/hdm_usb.c
index 41690f8..9d5555d 100644
--- a/drivers/staging/most/hdm-usb/hdm_usb.c
+++ b/drivers/staging/most/hdm-usb/hdm_usb.c
@@ -40,7 +40,6 @@
 #define MAX_SUFFIX_LEN		10
 #define MAX_STRING_LEN		80
 #define MAX_BUF_SIZE		0xFFFF
-#define CEILING(x, y)		(((x) + (y) - 1) / (y))
 
 #define USB_VENDOR_ID_SMSC	0x0424  /* VID: SMSC */
 #define USB_DEV_ID_BRDG		0xC001  /* PID: USB Bridge */
@@ -137,7 +136,6 @@ struct most_dev {
 #define to_mdev(d) container_of(d, struct most_dev, iface)
 #define to_mdev_from_work(w) container_of(w, struct most_dev, poll_work_obj)
 
-static struct workqueue_struct *schedule_usb_work;
 static void wq_clear_halt(struct work_struct *wq_obj);
 static void wq_netinfo(struct work_struct *wq_obj);
 
@@ -226,6 +224,8 @@ static void free_anchored_buffers(struct most_dev *mdev, unsigned int channel)
 		kfree(anchor);
 	}
 	spin_unlock_irqrestore(&mdev->anchor_list_lock[channel], flags);
+
+	cancel_work_sync(&anchor->clear_work_obj);
 }
 
 /**
@@ -411,7 +411,7 @@ static void hdm_write_completion(struct urb *urb)
 			mbo->status = MBO_E_INVAL;
 			usb_unlink_urb(urb);
 			INIT_WORK(&anchor->clear_work_obj, wq_clear_halt);
-			queue_work(schedule_usb_work, &anchor->clear_work_obj);
+			schedule_work(&anchor->clear_work_obj);
 			return;
 		case -ENODEV:
 		case -EPROTO:
@@ -575,7 +575,7 @@ static void hdm_read_completion(struct urb *urb)
 			mbo->status = MBO_E_INVAL;
 			usb_unlink_urb(urb);
 			INIT_WORK(&anchor->clear_work_obj, wq_clear_halt);
-			queue_work(schedule_usb_work, &anchor->clear_work_obj);
+			schedule_work(&anchor->clear_work_obj);
 			return;
 		case -ENODEV:
 		case -EPROTO:
@@ -785,7 +785,7 @@ static int hdm_configure_channel(struct most_interface *iface, int channel,
 	temp_size += tail_space;
 
 	/* calculate extra length to comply w/ HW padding */
-	conf->extra_len = (CEILING(temp_size, USB_MTU) * USB_MTU)
+	conf->extra_len = (DIV_ROUND_UP(temp_size, USB_MTU) * USB_MTU)
 			  - conf->buffer_size;
 exit:
 	mdev->conf[channel] = *conf;
@@ -872,7 +872,7 @@ static void link_stat_timer_handler(unsigned long data)
 {
 	struct most_dev *mdev = (struct most_dev *)data;
 
-	queue_work(schedule_usb_work, &mdev->poll_work_obj);
+	schedule_work(&mdev->poll_work_obj);
 	mdev->link_stat_timer.expires = jiffies + (2 * HZ);
 	add_timer(&mdev->link_stat_timer);
 }
@@ -1415,19 +1415,13 @@ static int __init hdm_usb_init(void)
 		pr_err("could not register hdm_usb driver\n");
 		return -EIO;
 	}
-	schedule_usb_work = create_workqueue("hdmu_work");
-	if (!schedule_usb_work) {
-		pr_err("could not create workqueue\n");
-		usb_deregister(&hdm_usb);
-		return -ENOMEM;
-	}
+
 	return 0;
 }
 
 static void __exit hdm_usb_exit(void)
 {
 	pr_info("hdm_usb_exit()\n");
-	destroy_workqueue(schedule_usb_work);
 	usb_deregister(&hdm_usb);
 }
 
diff --git a/drivers/staging/most/mostcore/core.c b/drivers/staging/most/mostcore/core.c
index 322ee01..7c619fe 100644
--- a/drivers/staging/most/mostcore/core.c
+++ b/drivers/staging/most/mostcore/core.c
@@ -1259,7 +1259,6 @@ static int arm_mbo_chain(struct most_c_obj *c, int dir,
 	for (i = 0; i < c->cfg.num_buffers; i++) {
 		mbo = kzalloc(sizeof(*mbo), GFP_KERNEL);
 		if (!mbo) {
-			pr_info("WARN: Allocation of MBO failed.\n");
 			retval = i;
 			goto _exit;
 		}
diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c
index 3d9a426..75fe61c 100644
--- a/drivers/staging/mt29f_spinand/mt29f_spinand.c
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
@@ -175,7 +175,7 @@ static int wait_till_ready(struct spi_device *spi_nand)
 		retval = spinand_read_status(spi_nand, &stat);
 		if (retval < 0)
 			return -1;
-		else if (!(stat & 0x1))
+		if (!(stat & 0x1))
 			break;
 
 		cond_resched();
diff --git a/drivers/staging/netlogic/platform_net.c b/drivers/staging/netlogic/platform_net.c
index 9b52154..abf4c71 100644
--- a/drivers/staging/netlogic/platform_net.c
+++ b/drivers/staging/netlogic/platform_net.c
@@ -170,7 +170,7 @@ static void xls_gmac_init(void)
 		xlr_net_dev0.num_resources = 2;
 
 		xlr_resource_init(&xlr_net0_res[0], xlr_gmac_offsets[0],
-				xlr_gmac_irqs[0]);
+				  xlr_gmac_irqs[0]);
 		platform_device_register(&xlr_net_dev0);
 
 		/* second block is XAUI, not supported yet */
@@ -183,7 +183,7 @@ static void xls_gmac_init(void)
 			ndata0.phy_addr[mac] = mac + 0x10;
 
 			xlr_resource_init(&xlr_net0_res[mac * 2],
-					xlr_gmac_offsets[mac],
+					  xlr_gmac_offsets[mac],
 					xlr_gmac_irqs[mac]);
 		}
 		xlr_net_dev0.num_resources = 8;
@@ -223,7 +223,7 @@ static void xlr_gmac_init(void)
 		ndata0.tx_stnid[mac] = FMN_STNID_GMAC0_TX0 + mac;
 		ndata0.phy_addr[mac] = mac;
 		xlr_resource_init(&xlr_net0_res[mac * 2], xlr_gmac_offsets[mac],
-				xlr_gmac_irqs[mac]);
+				  xlr_gmac_irqs[mac]);
 	}
 	xlr_net_dev0.num_resources = 8;
 	xlr_net_dev0.resource = xlr_net0_res;
diff --git a/drivers/staging/netlogic/xlr_net.c b/drivers/staging/netlogic/xlr_net.c
index 0b4e819..0015847 100644
--- a/drivers/staging/netlogic/xlr_net.c
+++ b/drivers/staging/netlogic/xlr_net.c
@@ -69,8 +69,7 @@ static inline u32 xlr_nae_rdreg(u32 __iomem *base, unsigned int reg)
 	return __raw_readl(base + reg);
 }
 
-static inline void xlr_reg_update(u32 *base_addr,
-		u32 off, u32 val, u32 mask)
+static inline void xlr_reg_update(u32 *base_addr, u32 off, u32 val, u32 mask)
 {
 	u32 tmp;
 
@@ -122,8 +121,8 @@ static inline unsigned char *xlr_alloc_skb(void)
 	return skb->data;
 }
 
-static void xlr_net_fmn_handler(int bkt, int src_stnid, int size,
-		int code, struct nlm_fmn_msg *msg, void *arg)
+static void xlr_net_fmn_handler(int bkt, int src_stnid, int size, int code,
+				struct nlm_fmn_msg *msg, void *arg)
 {
 	struct sk_buff *skb;
 	void *skb_data = NULL;
@@ -131,13 +130,13 @@ static void xlr_net_fmn_handler(int bkt, int src_stnid, int size,
 	struct xlr_net_priv *priv;
 	u32 port, length;
 	unsigned char *addr;
-	struct xlr_adapter *adapter = (struct xlr_adapter *) arg;
+	struct xlr_adapter *adapter = (struct xlr_adapter *)arg;
 
 	length = (msg->msg0 >> 40) & 0x3fff;
 	if (length == 0) {
 		addr = bus_to_virt(msg->msg0 & 0xffffffffffULL);
 		addr = addr - MAC_SKB_BACK_PTR_SIZE;
-		skb = (struct sk_buff *) *(unsigned long *)addr;
+		skb = (struct sk_buff *)(*(unsigned long *)addr);
 		dev_kfree_skb_any((struct sk_buff *)addr);
 	} else {
 		addr = (unsigned char *)
@@ -145,9 +144,9 @@ static void xlr_net_fmn_handler(int bkt, int src_stnid, int size,
 		length = length - BYTE_OFFSET - MAC_CRC_LEN;
 		port = ((int)msg->msg0) & 0x0f;
 		addr = addr - MAC_SKB_BACK_PTR_SIZE;
-		skb = (struct sk_buff *) *(unsigned long *)addr;
+		skb = (struct sk_buff *)(*(unsigned long *)addr);
 		skb->dev = adapter->netdev[port];
-		if (skb->dev == NULL)
+		if (!skb->dev)
 			return;
 		ndev = skb->dev;
 		priv = netdev_priv(ndev);
@@ -207,7 +206,7 @@ static int xlr_net_fill_rx_ring(struct net_device *ndev)
 	struct xlr_net_priv *priv = netdev_priv(ndev);
 	int i;
 
-	for (i = 0; i < MAX_FRIN_SPILL/4; i++) {
+	for (i = 0; i < MAX_FRIN_SPILL / 4; i++) {
 		skb_data = xlr_alloc_skb();
 		if (!skb_data) {
 			pr_err("SKB allocation failed\n");
@@ -252,7 +251,7 @@ static int xlr_net_stop(struct net_device *ndev)
 }
 
 static void xlr_make_tx_desc(struct nlm_fmn_msg *msg, unsigned long addr,
-		struct sk_buff *skb)
+			     struct sk_buff *skb)
 {
 	unsigned long physkb = virt_to_phys(skb);
 	int cpu_core = nlm_core_id();
@@ -266,12 +265,13 @@ static void xlr_make_tx_desc(struct nlm_fmn_msg *msg, unsigned long addr,
 		((u64)fr_stn_id << 54)	|	/* Free back id */
 		(u64)0 << 40		|	/* Set len to 0 */
 		((u64)physkb  & 0xffffffff));	/* 32bit address */
-	msg->msg2 = msg->msg3 = 0;
+	msg->msg2 = 0;
+	msg->msg3 = 0;
 }
 
 static void __maybe_unused xlr_wakeup_queue(unsigned long dev)
 {
-	struct net_device *ndev = (struct net_device *) dev;
+	struct net_device *ndev = (struct net_device *)dev;
 	struct xlr_net_priv *priv = netdev_priv(ndev);
 	struct phy_device *phydev = xlr_get_phydev(priv);
 
@@ -280,7 +280,7 @@ static void __maybe_unused xlr_wakeup_queue(unsigned long dev)
 }
 
 static netdev_tx_t xlr_net_start_xmit(struct sk_buff *skb,
-		struct net_device *ndev)
+				      struct net_device *ndev)
 {
 	struct nlm_fmn_msg msg;
 	struct xlr_net_priv *priv = netdev_priv(ndev);
@@ -309,10 +309,10 @@ static void xlr_hw_set_mac_addr(struct net_device *ndev)
 
 	/* set mac station address */
 	xlr_nae_wreg(priv->base_addr, R_MAC_ADDR0,
-		((ndev->dev_addr[5] << 24) | (ndev->dev_addr[4] << 16) |
-		(ndev->dev_addr[3] << 8) | (ndev->dev_addr[2])));
+		     ((ndev->dev_addr[5] << 24) | (ndev->dev_addr[4] << 16) |
+		     (ndev->dev_addr[3] << 8) | (ndev->dev_addr[2])));
 	xlr_nae_wreg(priv->base_addr, R_MAC_ADDR0 + 1,
-		((ndev->dev_addr[1] << 24) | (ndev->dev_addr[0] << 16)));
+		     ((ndev->dev_addr[1] << 24) | (ndev->dev_addr[0] << 16)));
 
 	xlr_nae_wreg(priv->base_addr, R_MAC_ADDR_MASK2, 0xffffffff);
 	xlr_nae_wreg(priv->base_addr, R_MAC_ADDR_MASK2 + 1, 0xffffffff);
@@ -320,12 +320,12 @@ static void xlr_hw_set_mac_addr(struct net_device *ndev)
 	xlr_nae_wreg(priv->base_addr, R_MAC_ADDR_MASK3 + 1, 0xffffffff);
 
 	xlr_nae_wreg(priv->base_addr, R_MAC_FILTER_CONFIG,
-		(1 << O_MAC_FILTER_CONFIG__BROADCAST_EN) |
-		(1 << O_MAC_FILTER_CONFIG__ALL_MCAST_EN) |
-		(1 << O_MAC_FILTER_CONFIG__MAC_ADDR0_VALID));
+		     (1 << O_MAC_FILTER_CONFIG__BROADCAST_EN) |
+		     (1 << O_MAC_FILTER_CONFIG__ALL_MCAST_EN) |
+		     (1 << O_MAC_FILTER_CONFIG__MAC_ADDR0_VALID));
 
 	if (priv->nd->phy_interface == PHY_INTERFACE_MODE_RGMII ||
-			priv->nd->phy_interface == PHY_INTERFACE_MODE_SGMII)
+	    priv->nd->phy_interface == PHY_INTERFACE_MODE_SGMII)
 		xlr_reg_update(priv->base_addr, R_IPG_IFG, MAC_B2B_IPG, 0x7f);
 }
 
@@ -406,7 +406,8 @@ static void xlr_stats(struct net_device *ndev, struct rtnl_link_stats64 *stats)
 }
 
 static struct rtnl_link_stats64 *xlr_get_stats64(struct net_device *ndev,
-		struct rtnl_link_stats64 *stats)
+						 struct rtnl_link_stats64 *stats
+						 )
 {
 	xlr_stats(ndev, stats);
 	return stats;
@@ -426,7 +427,7 @@ static struct net_device_ops xlr_netdev_ops = {
  * Gmac init
  */
 static void *xlr_config_spill(struct xlr_net_priv *priv, int reg_start_0,
-		int reg_start_1, int reg_size, int size)
+			      int reg_start_1, int reg_size, int size)
 {
 	void *spill;
 	u32 *base;
@@ -436,13 +437,15 @@ static void *xlr_config_spill(struct xlr_net_priv *priv, int reg_start_0,
 	base = priv->base_addr;
 	spill_size = size;
 	spill = kmalloc(spill_size + SMP_CACHE_BYTES, GFP_ATOMIC);
-	if (!spill)
+	if (!spill) {
 		pr_err("Unable to allocate memory for spill area!\n");
+		return ZERO_SIZE_PTR;
+	}
 
 	spill = PTR_ALIGN(spill, SMP_CACHE_BYTES);
 	phys_addr = virt_to_phys(spill);
 	dev_dbg(&priv->ndev->dev, "Allocated spill %d bytes at %lx\n",
-			size, phys_addr);
+		size, phys_addr);
 	xlr_nae_wreg(base, reg_start_0, (phys_addr >> 5) & 0xffffffff);
 	xlr_nae_wreg(base, reg_start_1, ((u64)phys_addr >> 37) & 0x07);
 	xlr_nae_wreg(base, reg_size, spill_size);
@@ -511,19 +514,19 @@ static void xlr_config_pde(struct xlr_net_priv *priv)
 
 	xlr_nae_wreg(priv->base_addr, R_PDE_CLASS_0, (bkt_map & 0xffffffff));
 	xlr_nae_wreg(priv->base_addr, R_PDE_CLASS_0 + 1,
-			((bkt_map >> 32) & 0xffffffff));
+		     ((bkt_map >> 32) & 0xffffffff));
 
 	xlr_nae_wreg(priv->base_addr, R_PDE_CLASS_1, (bkt_map & 0xffffffff));
 	xlr_nae_wreg(priv->base_addr, R_PDE_CLASS_1 + 1,
-			((bkt_map >> 32) & 0xffffffff));
+		     ((bkt_map >> 32) & 0xffffffff));
 
 	xlr_nae_wreg(priv->base_addr, R_PDE_CLASS_2, (bkt_map & 0xffffffff));
 	xlr_nae_wreg(priv->base_addr, R_PDE_CLASS_2 + 1,
-			((bkt_map >> 32) & 0xffffffff));
+		     ((bkt_map >> 32) & 0xffffffff));
 
 	xlr_nae_wreg(priv->base_addr, R_PDE_CLASS_3, (bkt_map & 0xffffffff));
 	xlr_nae_wreg(priv->base_addr, R_PDE_CLASS_3 + 1,
-			((bkt_map >> 32) & 0xffffffff));
+		     ((bkt_map >> 32) & 0xffffffff));
 }
 
 /*
@@ -541,8 +544,8 @@ static int xlr_config_common(struct xlr_net_priv *priv)
 	/* Setting non-core MsgBktSize(0x321 - 0x325) */
 	for (i = start_stn_id; i <= end_stn_id; i++) {
 		xlr_nae_wreg(priv->base_addr,
-				R_GMAC_RFR0_BUCKET_SIZE + i - start_stn_id,
-				bucket_size[i]);
+			     R_GMAC_RFR0_BUCKET_SIZE + i - start_stn_id,
+			     bucket_size[i]);
 	}
 
 	/*
@@ -552,8 +555,8 @@ static int xlr_config_common(struct xlr_net_priv *priv)
 	for (i = 0; i < 8; i++) {
 		for (j = 0; j < 8; j++)
 			xlr_nae_wreg(priv->base_addr,
-					(R_CC_CPU0_0 + (i * 8)) + j,
-					gmac->credit_config[(i * 8) + j]);
+				     (R_CC_CPU0_0 + (i * 8)) + j,
+				     gmac->credit_config[(i * 8) + j]);
 	}
 
 	xlr_nae_wreg(priv->base_addr, R_MSG_TX_THRESHOLD, 3);
@@ -567,7 +570,7 @@ static int xlr_config_common(struct xlr_net_priv *priv)
 	if (err)
 		return err;
 	nlm_register_fmn_handler(start_stn_id, end_stn_id, xlr_net_fmn_handler,
-			priv->adapter);
+				 priv->adapter);
 	return 0;
 }
 
@@ -583,7 +586,7 @@ static void xlr_config_translate_table(struct xlr_net_priv *priv)
 	cpu_mask = priv->nd->cpu_mask;
 
 	pr_info("Using %s-based distribution\n",
-			(use_bkt) ? "bucket" : "class");
+		(use_bkt) ? "bucket" : "class");
 	j = 0;
 	for (i = 0; i < 32; i++) {
 		if ((1 << i) & cpu_mask) {
@@ -614,7 +617,7 @@ static void xlr_config_translate_table(struct xlr_net_priv *priv)
 		val = ((c1 << 23) | (b1 << 17) | (use_bkt << 16) |
 				(c2 << 7) | (b2 << 1) | (use_bkt << 0));
 		dev_dbg(&priv->ndev->dev, "Table[%d] b1=%d b2=%d c1=%d c2=%d\n",
-				i, b1, b2, c1, c2);
+			i, b1, b2, c1, c2);
 		xlr_nae_wreg(priv->base_addr, R_TRANSLATETABLE + i, val);
 		c1 = c2;
 	}
@@ -629,16 +632,16 @@ static void xlr_config_parser(struct xlr_net_priv *priv)
 
 	/* Use 7bit CRChash for flow classification with 127 as CRC polynomial*/
 	xlr_nae_wreg(priv->base_addr, R_PARSERCONFIGREG,
-			((0x7f << 8) | (1 << 1)));
+		     ((0x7f << 8) | (1 << 1)));
 
 	/* configure the parser : L2 Type is configured in the bootloader */
 	/* extract IP: src, dest protocol */
 	xlr_nae_wreg(priv->base_addr, R_L3CTABLE,
-			(9 << 20) | (1 << 19) | (1 << 18) | (0x01 << 16) |
-			(0x0800 << 0));
+		     (9 << 20) | (1 << 19) | (1 << 18) | (0x01 << 16) |
+		     (0x0800 << 0));
 	xlr_nae_wreg(priv->base_addr, R_L3CTABLE + 1,
-			(9 << 25) | (1 << 21) | (12 << 14) | (4 << 10) |
-			(16 << 4) | 4);
+		     (9 << 25) | (1 << 21) | (12 << 14) | (4 << 10) |
+		     (16 << 4) | 4);
 
 	/* Configure to extract SRC port and Dest port for TCP and UDP pkts */
 	xlr_nae_wreg(priv->base_addr, R_L4CTABLE, 6);
@@ -663,7 +666,7 @@ static int xlr_phy_write(u32 *base_addr, int phy_addr, int regnum, u16 val)
 	xlr_nae_wreg(base_addr, R_MII_MGMT_ADDRESS, (phy_addr << 8) | regnum);
 
 	/* Write the data which starts the write cycle */
-	xlr_nae_wreg(base_addr, R_MII_MGMT_WRITE_DATA, (u32) val);
+	xlr_nae_wreg(base_addr, R_MII_MGMT_WRITE_DATA, (u32)val);
 
 	/* poll for the read cycle to complete */
 	while (!timedout) {
@@ -692,11 +695,11 @@ static int xlr_phy_read(u32 *base_addr, int phy_addr, int regnum)
 
 	/* setup the phy reg to be used */
 	xlr_nae_wreg(base_addr, R_MII_MGMT_ADDRESS,
-			(phy_addr << 8) | (regnum << 0));
+		     (phy_addr << 8) | (regnum << 0));
 
 	/* Issue the read command */
 	xlr_nae_wreg(base_addr, R_MII_MGMT_COMMAND,
-			(1 << O_MII_MGMT_COMMAND__rstat));
+		     (1 << O_MII_MGMT_COMMAND__rstat));
 
 	/* poll for the read cycle to complete */
 	while (!timedout) {
@@ -724,7 +727,7 @@ static int xlr_mii_write(struct mii_bus *bus, int phy_addr, int regnum, u16 val)
 
 	ret = xlr_phy_write(priv->mii_addr, phy_addr, regnum, val);
 	dev_dbg(&priv->ndev->dev, "mii_write phy %d : %d <- %x [%x]\n",
-			phy_addr, regnum, val, ret);
+		phy_addr, regnum, val, ret);
 	return ret;
 }
 
@@ -735,7 +738,7 @@ static int xlr_mii_read(struct mii_bus *bus, int phy_addr, int regnum)
 
 	ret =  xlr_phy_read(priv->mii_addr, phy_addr, regnum);
 	dev_dbg(&priv->ndev->dev, "mii_read phy %d : %d [%x]\n",
-			phy_addr, regnum, ret);
+		phy_addr, regnum, ret);
 	return ret;
 }
 
@@ -797,13 +800,16 @@ void xlr_set_gmac_speed(struct xlr_net_priv *priv)
 		if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
 			if (speed == SPEED_10)
 				xlr_nae_wreg(priv->base_addr,
-					R_INTERFACE_CONTROL, SGMII_SPEED_10);
+					     R_INTERFACE_CONTROL,
+					     SGMII_SPEED_10);
 			if (speed == SPEED_100)
 				xlr_nae_wreg(priv->base_addr,
-					R_INTERFACE_CONTROL, SGMII_SPEED_100);
+					     R_INTERFACE_CONTROL,
+					     SGMII_SPEED_100);
 			if (speed == SPEED_1000)
 				xlr_nae_wreg(priv->base_addr,
-					R_INTERFACE_CONTROL, SGMII_SPEED_1000);
+					     R_INTERFACE_CONTROL,
+					     SGMII_SPEED_1000);
 		}
 		if (speed == SPEED_10)
 			xlr_nae_wreg(priv->base_addr, R_CORECONTROL, 0x2);
@@ -864,7 +870,7 @@ static int xlr_mii_probe(struct xlr_net_priv *priv)
 }
 
 static int xlr_setup_mdio(struct xlr_net_priv *priv,
-		struct platform_device *pdev)
+			  struct platform_device *pdev)
 {
 	int err;
 
@@ -877,7 +883,7 @@ static int xlr_setup_mdio(struct xlr_net_priv *priv,
 	priv->mii_bus->priv = priv;
 	priv->mii_bus->name = "xlr-mdio";
 	snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%s-%d",
-			priv->mii_bus->name, priv->port_id);
+		 priv->mii_bus->name, priv->port_id);
 	priv->mii_bus->read = xlr_mii_read;
 	priv->mii_bus->write = xlr_mii_write;
 	priv->mii_bus->parent = &pdev->dev;
@@ -910,25 +916,31 @@ static void xlr_port_enable(struct xlr_net_priv *priv)
 
 	/* Setup MAC_CONFIG reg if (xls & rgmii) */
 	if ((prid == 0x8000 || prid == 0x4000 || prid == 0xc000) &&
-			priv->nd->phy_interface == PHY_INTERFACE_MODE_RGMII)
+	    priv->nd->phy_interface == PHY_INTERFACE_MODE_RGMII)
 		xlr_reg_update(priv->base_addr, R_RX_CONTROL,
-			(1 << O_RX_CONTROL__RGMII), (1 << O_RX_CONTROL__RGMII));
+			       (1 << O_RX_CONTROL__RGMII),
+			       (1 << O_RX_CONTROL__RGMII));
 
 	/* Rx Tx enable */
 	xlr_reg_update(priv->base_addr, R_MAC_CONFIG_1,
-		((1 << O_MAC_CONFIG_1__rxen) | (1 << O_MAC_CONFIG_1__txen) |
-		(1 << O_MAC_CONFIG_1__rxfc) | (1 << O_MAC_CONFIG_1__txfc)),
-		((1 << O_MAC_CONFIG_1__rxen) | (1 << O_MAC_CONFIG_1__txen) |
-		(1 << O_MAC_CONFIG_1__rxfc) | (1 << O_MAC_CONFIG_1__txfc)));
+		       ((1 << O_MAC_CONFIG_1__rxen) |
+			(1 << O_MAC_CONFIG_1__txen) |
+			(1 << O_MAC_CONFIG_1__rxfc) |
+			(1 << O_MAC_CONFIG_1__txfc)),
+		       ((1 << O_MAC_CONFIG_1__rxen) |
+			(1 << O_MAC_CONFIG_1__txen) |
+			(1 << O_MAC_CONFIG_1__rxfc) |
+			(1 << O_MAC_CONFIG_1__txfc)));
 
 	/* Setup tx control reg */
 	xlr_reg_update(priv->base_addr, R_TX_CONTROL,
-		((1 << O_TX_CONTROL__TxEnable) |
-		(512 << O_TX_CONTROL__TxThreshold)), 0x3fff);
+		       ((1 << O_TX_CONTROL__TXENABLE) |
+		       (512 << O_TX_CONTROL__TXTHRESHOLD)), 0x3fff);
 
 	/* Setup rx control reg */
 	xlr_reg_update(priv->base_addr, R_RX_CONTROL,
-		1 << O_RX_CONTROL__RxEnable, 1 << O_RX_CONTROL__RxEnable);
+		       1 << O_RX_CONTROL__RXENABLE,
+		       1 << O_RX_CONTROL__RXENABLE);
 }
 
 static void xlr_port_disable(struct xlr_net_priv *priv)
@@ -936,25 +948,26 @@ static void xlr_port_disable(struct xlr_net_priv *priv)
 	/* Setup MAC_CONFIG reg */
 	/* Rx Tx disable*/
 	xlr_reg_update(priv->base_addr, R_MAC_CONFIG_1,
-		((1 << O_MAC_CONFIG_1__rxen) | (1 << O_MAC_CONFIG_1__txen) |
-		(1 << O_MAC_CONFIG_1__rxfc) | (1 << O_MAC_CONFIG_1__txfc)),
-		0x0);
+		       ((1 << O_MAC_CONFIG_1__rxen) |
+			(1 << O_MAC_CONFIG_1__txen) |
+			(1 << O_MAC_CONFIG_1__rxfc) |
+			(1 << O_MAC_CONFIG_1__txfc)), 0x0);
 
 	/* Setup tx control reg */
 	xlr_reg_update(priv->base_addr, R_TX_CONTROL,
-		((1 << O_TX_CONTROL__TxEnable) |
-		(512 << O_TX_CONTROL__TxThreshold)), 0);
+		       ((1 << O_TX_CONTROL__TXENABLE) |
+		       (512 << O_TX_CONTROL__TXTHRESHOLD)), 0);
 
 	/* Setup rx control reg */
 	xlr_reg_update(priv->base_addr, R_RX_CONTROL,
-		1 << O_RX_CONTROL__RxEnable, 0);
+		       1 << O_RX_CONTROL__RXENABLE, 0);
 }
 
 /*
  * Initialization of gmac
  */
 static int xlr_gmac_init(struct xlr_net_priv *priv,
-		struct platform_device *pdev)
+			 struct platform_device *pdev)
 {
 	int ret;
 
@@ -963,9 +976,9 @@ static int xlr_gmac_init(struct xlr_net_priv *priv,
 	xlr_port_disable(priv);
 
 	xlr_nae_wreg(priv->base_addr, R_DESC_PACK_CTRL,
-			(1 << O_DESC_PACK_CTRL__MaxEntry)
-			| (BYTE_OFFSET << O_DESC_PACK_CTRL__ByteOffset)
-			| (1600 << O_DESC_PACK_CTRL__RegularSize));
+		     (1 << O_DESC_PACK_CTRL__MAXENTRY) |
+		     (BYTE_OFFSET << O_DESC_PACK_CTRL__BYTEOFFSET) |
+		     (1600 << O_DESC_PACK_CTRL__REGULARSIZE));
 
 	ret = xlr_setup_mdio(priv, pdev);
 	if (ret)
@@ -977,21 +990,14 @@ static int xlr_gmac_init(struct xlr_net_priv *priv,
 	/* speed 2.5Mhz */
 	xlr_nae_wreg(priv->base_addr, R_CORECONTROL, 0x02);
 	/* Setup Interrupt mask reg */
-	xlr_nae_wreg(priv->base_addr, R_INTMASK,
-		(1 << O_INTMASK__TxIllegal)	|
-		(1 << O_INTMASK__MDInt)		|
-		(1 << O_INTMASK__TxFetchError)	|
-		(1 << O_INTMASK__P2PSpillEcc)	|
-		(1 << O_INTMASK__TagFull)	|
-		(1 << O_INTMASK__Underrun)	|
-		(1 << O_INTMASK__Abort)
-		);
+	xlr_nae_wreg(priv->base_addr, R_INTMASK, (1 << O_INTMASK__TXILLEGAL) |
+		     (1 << O_INTMASK__MDINT) | (1 << O_INTMASK__TXFETCHERROR) |
+		     (1 << O_INTMASK__P2PSPILLECC) | (1 << O_INTMASK__TAGFULL) |
+		     (1 << O_INTMASK__UNDERRUN) | (1 << O_INTMASK__ABORT));
 
 	/* Clear all stats */
-	xlr_reg_update(priv->base_addr, R_STATCTRL,
-		0, 1 << O_STATCTRL__ClrCnt);
-	xlr_reg_update(priv->base_addr, R_STATCTRL, 1 << 2,
-		1 << 2);
+	xlr_reg_update(priv->base_addr, R_STATCTRL, 0, 1 << O_STATCTRL__CLRCNT);
+	xlr_reg_update(priv->base_addr, R_STATCTRL, 1 << 2, 1 << 2);
 	return 0;
 }
 
@@ -1019,7 +1025,7 @@ static int xlr_net_probe(struct platform_device *pdev)
 	 * Each controller has 4 gmac ports, mapping each controller
 	 * under one parent device, 4 gmac ports under one device.
 	 */
-	for (port = 0; port < pdev->num_resources/2; port++) {
+	for (port = 0; port < pdev->num_resources / 2; port++) {
 		ndev = alloc_etherdev_mq(sizeof(struct xlr_net_priv), 32);
 		if (!ndev) {
 			pr_err("Allocation of Ethernet device failed\n");
@@ -1035,7 +1041,7 @@ static int xlr_net_probe(struct platform_device *pdev)
 
 		if (res == NULL) {
 			pr_err("No memory resource for MAC %d\n",
-					priv->port_id);
+			       priv->port_id);
 			err = -ENODEV;
 			goto err_gmac;
 		}
@@ -1048,7 +1054,7 @@ static int xlr_net_probe(struct platform_device *pdev)
 		adapter->netdev[port] = ndev;
 
 		res = platform_get_resource(pdev, IORESOURCE_IRQ, port);
-		if (res == NULL) {
+		if (!res) {
 			pr_err("No irq resource for MAC %d\n", priv->port_id);
 			err = -ENODEV;
 			goto err_gmac;
@@ -1098,7 +1104,7 @@ static int xlr_net_probe(struct platform_device *pdev)
 		err = register_netdev(ndev);
 		if (err) {
 			pr_err("Registering netdev failed for gmac%d\n",
-					priv->port_id);
+			       priv->port_id);
 			goto err_netdev;
 		}
 		platform_set_drvdata(pdev, priv);
diff --git a/drivers/staging/netlogic/xlr_net.h b/drivers/staging/netlogic/xlr_net.h
index 7ae8874..f76e16c 100644
--- a/drivers/staging/netlogic/xlr_net.h
+++ b/drivers/staging/netlogic/xlr_net.h
@@ -277,332 +277,332 @@
 #define   O_MAC_FILTER_CONFIG__MAC_ADDR0_VALID                      0
 #define R_HASH_TABLE_VECTOR                                         0x30
 #define R_TX_CONTROL                                                 0x0A0
-#define   O_TX_CONTROL__Tx15Halt                                     31
-#define   O_TX_CONTROL__Tx14Halt                                     30
-#define   O_TX_CONTROL__Tx13Halt                                     29
-#define   O_TX_CONTROL__Tx12Halt                                     28
-#define   O_TX_CONTROL__Tx11Halt                                     27
-#define   O_TX_CONTROL__Tx10Halt                                     26
-#define   O_TX_CONTROL__Tx9Halt                                      25
-#define   O_TX_CONTROL__Tx8Halt                                      24
-#define   O_TX_CONTROL__Tx7Halt                                      23
-#define   O_TX_CONTROL__Tx6Halt                                      22
-#define   O_TX_CONTROL__Tx5Halt                                      21
-#define   O_TX_CONTROL__Tx4Halt                                      20
-#define   O_TX_CONTROL__Tx3Halt                                      19
-#define   O_TX_CONTROL__Tx2Halt                                      18
-#define   O_TX_CONTROL__Tx1Halt                                      17
-#define   O_TX_CONTROL__Tx0Halt                                      16
-#define   O_TX_CONTROL__TxIdle                                       15
-#define   O_TX_CONTROL__TxEnable                                     14
-#define   O_TX_CONTROL__TxThreshold                                  0
-#define   W_TX_CONTROL__TxThreshold                                  14
+#define   O_TX_CONTROL__TX15HALT                                     31
+#define   O_TX_CONTROL__TX14HALT                                     30
+#define   O_TX_CONTROL__TX13HALT                                     29
+#define   O_TX_CONTROL__TX12HALT                                     28
+#define   O_TX_CONTROL__TX11HALT                                     27
+#define   O_TX_CONTROL__TX10HALT                                     26
+#define   O_TX_CONTROL__TX9HALT                                      25
+#define   O_TX_CONTROL__TX8HALT                                      24
+#define   O_TX_CONTROL__TX7HALT                                      23
+#define   O_TX_CONTROL__TX6HALT                                      22
+#define   O_TX_CONTROL__TX5HALT                                      21
+#define   O_TX_CONTROL__TX4HALT                                      20
+#define   O_TX_CONTROL__TX3HALT                                      19
+#define   O_TX_CONTROL__TX2HALT                                      18
+#define   O_TX_CONTROL__TX1HALT                                      17
+#define   O_TX_CONTROL__TX0HALT                                      16
+#define   O_TX_CONTROL__TXIDLE                                       15
+#define   O_TX_CONTROL__TXENABLE                                     14
+#define   O_TX_CONTROL__TXTHRESHOLD                                  0
+#define   W_TX_CONTROL__TXTHRESHOLD                                  14
 #define R_RX_CONTROL                                                 0x0A1
 #define   O_RX_CONTROL__RGMII                                        10
-#define   O_RX_CONTROL__SoftReset			             2
-#define   O_RX_CONTROL__RxHalt                                       1
-#define   O_RX_CONTROL__RxEnable                                     0
+#define   O_RX_CONTROL__SOFTRESET			             2
+#define   O_RX_CONTROL__RXHALT                                       1
+#define   O_RX_CONTROL__RXENABLE                                     0
 #define R_DESC_PACK_CTRL                                            0x0A2
-#define   O_DESC_PACK_CTRL__ByteOffset                              17
-#define   W_DESC_PACK_CTRL__ByteOffset                              3
-#define   O_DESC_PACK_CTRL__PrePadEnable                            16
-#define   O_DESC_PACK_CTRL__MaxEntry                                14
-#define   W_DESC_PACK_CTRL__MaxEntry                                2
-#define   O_DESC_PACK_CTRL__RegularSize                             0
-#define   W_DESC_PACK_CTRL__RegularSize                             14
+#define   O_DESC_PACK_CTRL__BYTEOFFSET                              17
+#define   W_DESC_PACK_CTRL__BYTEOFFSET                              3
+#define   O_DESC_PACK_CTRL__PREPADENABLE                            16
+#define   O_DESC_PACK_CTRL__MAXENTRY                                14
+#define   W_DESC_PACK_CTRL__MAXENTRY                                2
+#define   O_DESC_PACK_CTRL__REGULARSIZE                             0
+#define   W_DESC_PACK_CTRL__REGULARSIZE                             14
 #define R_STATCTRL                                                  0x0A3
-#define   O_STATCTRL__OverFlowEn                                    4
+#define   O_STATCTRL__OVERFLOWEN                                    4
 #define   O_STATCTRL__GIG                                           3
-#define   O_STATCTRL__Sten                                          2
-#define   O_STATCTRL__ClrCnt                                        1
-#define   O_STATCTRL__AutoZ                                         0
+#define   O_STATCTRL__STEN                                          2
+#define   O_STATCTRL__CLRCNT                                        1
+#define   O_STATCTRL__AUTOZ                                         0
 #define R_L2ALLOCCTRL                                               0x0A4
-#define   O_L2ALLOCCTRL__TxL2Allocate                               9
-#define   W_L2ALLOCCTRL__TxL2Allocate                               9
-#define   O_L2ALLOCCTRL__RxL2Allocate                               0
-#define   W_L2ALLOCCTRL__RxL2Allocate                               9
+#define   O_L2ALLOCCTRL__TXL2ALLOCATE                               9
+#define   W_L2ALLOCCTRL__TXL2ALLOCATE                               9
+#define   O_L2ALLOCCTRL__RXL2ALLOCATE                               0
+#define   W_L2ALLOCCTRL__RXL2ALLOCATE                               9
 #define R_INTMASK                                                   0x0A5
-#define   O_INTMASK__Spi4TxError                                     28
-#define   O_INTMASK__Spi4RxError                                     27
-#define   O_INTMASK__RGMIIHalfDupCollision                           27
-#define   O_INTMASK__Abort                                           26
-#define   O_INTMASK__Underrun                                        25
-#define   O_INTMASK__DiscardPacket                                   24
-#define   O_INTMASK__AsyncFifoFull                                   23
-#define   O_INTMASK__TagFull                                         22
-#define   O_INTMASK__Class3Full                                      21
-#define   O_INTMASK__C3EarlyFull                                     20
-#define   O_INTMASK__Class2Full                                      19
-#define   O_INTMASK__C2EarlyFull                                     18
-#define   O_INTMASK__Class1Full                                      17
-#define   O_INTMASK__C1EarlyFull                                     16
-#define   O_INTMASK__Class0Full                                      15
-#define   O_INTMASK__C0EarlyFull                                     14
-#define   O_INTMASK__RxDataFull                                      13
-#define   O_INTMASK__RxEarlyFull                                     12
-#define   O_INTMASK__RFreeEmpty                                      9
-#define   O_INTMASK__RFEarlyEmpty                                    8
-#define   O_INTMASK__P2PSpillEcc                                     7
-#define   O_INTMASK__FreeDescFull                                    5
-#define   O_INTMASK__FreeEarlyFull                                   4
-#define   O_INTMASK__TxFetchError                                    3
-#define   O_INTMASK__StatCarry                                       2
-#define   O_INTMASK__MDInt                                           1
-#define   O_INTMASK__TxIllegal                                       0
+#define   O_INTMASK__SPI4TXERROR                                     28
+#define   O_INTMASK__SPI4RXERROR                                     27
+#define   O_INTMASK__RGMIIHALFDUPCOLLISION                           27
+#define   O_INTMASK__ABORT                                           26
+#define   O_INTMASK__UNDERRUN                                        25
+#define   O_INTMASK__DISCARDPACKET                                   24
+#define   O_INTMASK__ASYNCFIFOFULL                                   23
+#define   O_INTMASK__TAGFULL                                         22
+#define   O_INTMASK__CLASS3FULL                                      21
+#define   O_INTMASK__C3EARLYFULL                                     20
+#define   O_INTMASK__CLASS2FULL                                      19
+#define   O_INTMASK__C2EARLYFULL                                     18
+#define   O_INTMASK__CLASS1FULL                                      17
+#define   O_INTMASK__C1EARLYFULL                                     16
+#define   O_INTMASK__CLASS0FULL                                      15
+#define   O_INTMASK__C0EARLYFULL                                     14
+#define   O_INTMASK__RXDATAFULL                                      13
+#define   O_INTMASK__RXEARLYFULL                                     12
+#define   O_INTMASK__RFREEEMPTY                                      9
+#define   O_INTMASK__RFEARLYEMPTY                                    8
+#define   O_INTMASK__P2PSPILLECC                                     7
+#define   O_INTMASK__FREEDESCFULL                                    5
+#define   O_INTMASK__FREEEARLYFULL                                   4
+#define   O_INTMASK__TXFETCHERROR                                    3
+#define   O_INTMASK__STATCARRY                                       2
+#define   O_INTMASK__MDINT                                           1
+#define   O_INTMASK__TXILLEGAL                                       0
 #define R_INTREG                                                    0x0A6
-#define   O_INTREG__Spi4TxError                                     28
-#define   O_INTREG__Spi4RxError                                     27
-#define   O_INTREG__RGMIIHalfDupCollision                           27
-#define   O_INTREG__Abort                                           26
-#define   O_INTREG__Underrun                                        25
-#define   O_INTREG__DiscardPacket                                   24
-#define   O_INTREG__AsyncFifoFull                                   23
-#define   O_INTREG__TagFull                                         22
-#define   O_INTREG__Class3Full                                      21
-#define   O_INTREG__C3EarlyFull                                     20
-#define   O_INTREG__Class2Full                                      19
-#define   O_INTREG__C2EarlyFull                                     18
-#define   O_INTREG__Class1Full                                      17
-#define   O_INTREG__C1EarlyFull                                     16
-#define   O_INTREG__Class0Full                                      15
-#define   O_INTREG__C0EarlyFull                                     14
-#define   O_INTREG__RxDataFull                                      13
-#define   O_INTREG__RxEarlyFull                                     12
-#define   O_INTREG__RFreeEmpty                                      9
-#define   O_INTREG__RFEarlyEmpty                                    8
-#define   O_INTREG__P2PSpillEcc                                     7
-#define   O_INTREG__FreeDescFull                                    5
-#define   O_INTREG__FreeEarlyFull                                   4
-#define   O_INTREG__TxFetchError                                    3
-#define   O_INTREG__StatCarry                                       2
-#define   O_INTREG__MDInt                                           1
-#define   O_INTREG__TxIllegal                                       0
+#define   O_INTREG__SPI4TXERROR                                     28
+#define   O_INTREG__SPI4RXERROR                                     27
+#define   O_INTREG__RGMIIHALFDUPCOLLISION                           27
+#define   O_INTREG__ABORT                                           26
+#define   O_INTREG__UNDERRUN                                        25
+#define   O_INTREG__DISCARDPACKET                                   24
+#define   O_INTREG__ASYNCFIFOFULL                                   23
+#define   O_INTREG__TAGFULL                                         22
+#define   O_INTREG__CLASS3FULL                                      21
+#define   O_INTREG__C3EARLYFULL                                     20
+#define   O_INTREG__CLASS2FULL                                      19
+#define   O_INTREG__C2EARLYFULL                                     18
+#define   O_INTREG__CLASS1FULL                                      17
+#define   O_INTREG__C1EARLYFULL                                     16
+#define   O_INTREG__CLASS0FULL                                      15
+#define   O_INTREG__C0EARLYFULL                                     14
+#define   O_INTREG__RXDATAFULL                                      13
+#define   O_INTREG__RXEARLYFULL                                     12
+#define   O_INTREG__RFREEEMPTY                                      9
+#define   O_INTREG__RFEARLYEMPTY                                    8
+#define   O_INTREG__P2PSPILLECC                                     7
+#define   O_INTREG__FREEDESCFULL                                    5
+#define   O_INTREG__FREEEARLYFULL                                   4
+#define   O_INTREG__TXFETCHERROR                                    3
+#define   O_INTREG__STATCARRY                                       2
+#define   O_INTREG__MDINT                                           1
+#define   O_INTREG__TXILLEGAL                                       0
 #define R_TXRETRY                                                   0x0A7
-#define   O_TXRETRY__CollisionRetry                                 6
-#define   O_TXRETRY__BusErrorRetry                                  5
-#define   O_TXRETRY__UnderRunRetry                                  4
-#define   O_TXRETRY__Retries                                        0
-#define   W_TXRETRY__Retries                                        4
+#define   O_TXRETRY__COLLISIONRETRY                                 6
+#define   O_TXRETRY__BUSERRORRETRY                                  5
+#define   O_TXRETRY__UNDERRUNRETRY                                  4
+#define   O_TXRETRY__RETRIES                                        0
+#define   W_TXRETRY__RETRIES                                        4
 #define R_CORECONTROL                                               0x0A8
-#define   O_CORECONTROL__ErrorThread                                4
-#define   W_CORECONTROL__ErrorThread                                7
-#define   O_CORECONTROL__Shutdown                                   2
-#define   O_CORECONTROL__Speed                                      0
-#define   W_CORECONTROL__Speed                                      2
+#define   O_CORECONTROL__ERRORTHREAD                                4
+#define   W_CORECONTROL__ERRORTHREAD                                7
+#define   O_CORECONTROL__SHUTDOWN                                   2
+#define   O_CORECONTROL__SPEED                                      0
+#define   W_CORECONTROL__SPEED                                      2
 #define R_BYTEOFFSET0                                               0x0A9
 #define R_BYTEOFFSET1                                               0x0AA
 #define R_L2TYPE_0                                                  0x0F0
-#define   O_L2TYPE__ExtraHdrProtoSize                               26
-#define   W_L2TYPE__ExtraHdrProtoSize                               5
-#define   O_L2TYPE__ExtraHdrProtoOffset                             20
-#define   W_L2TYPE__ExtraHdrProtoOffset                             6
-#define   O_L2TYPE__ExtraHeaderSize                                 14
-#define   W_L2TYPE__ExtraHeaderSize                                 6
-#define   O_L2TYPE__ProtoOffset                                     8
-#define   W_L2TYPE__ProtoOffset                                     6
-#define   O_L2TYPE__L2HdrOffset                                     2
-#define   W_L2TYPE__L2HdrOffset                                     6
-#define   O_L2TYPE__L2Proto                                         0
-#define   W_L2TYPE__L2Proto                                         2
+#define   O_L2TYPE__EXTRAHDRPROTOSIZE                               26
+#define   W_L2TYPE__EXTRAHDRPROTOSIZE                               5
+#define   O_L2TYPE__EXTRAHDRPROTOOFFSET                             20
+#define   W_L2TYPE__EXTRAHDRPROTOOFFSET                             6
+#define   O_L2TYPE__EXTRAHEADERSIZE                                 14
+#define   W_L2TYPE__EXTRAHEADERSIZE                                 6
+#define   O_L2TYPE__PROTOOFFSET                                     8
+#define   W_L2TYPE__PROTOOFFSET                                     6
+#define   O_L2TYPE__L2HDROFFSET                                     2
+#define   W_L2TYPE__L2HDROFFSET                                     6
+#define   O_L2TYPE__L2PROTO                                         0
+#define   W_L2TYPE__L2PROTO                                         2
 #define R_L2TYPE_1                                                  0xF0
 #define R_L2TYPE_2                                                  0xF0
 #define R_L2TYPE_3                                                  0xF0
 #define R_PARSERCONFIGREG                                           0x100
-#define   O_PARSERCONFIGREG__CRCHashPoly                            8
-#define   W_PARSERCONFIGREG__CRCHashPoly                            7
-#define   O_PARSERCONFIGREG__PrePadOffset                           4
-#define   W_PARSERCONFIGREG__PrePadOffset                           4
-#define   O_PARSERCONFIGREG__UseCAM                                 2
-#define   O_PARSERCONFIGREG__UseHASH                                1
-#define   O_PARSERCONFIGREG__UseProto                               0
+#define   O_PARSERCONFIGREG__CRCHASHPOLY                            8
+#define   W_PARSERCONFIGREG__CRCHASHPOLY                            7
+#define   O_PARSERCONFIGREG__PREPADOFFSET                           4
+#define   W_PARSERCONFIGREG__PREPADOFFSET                           4
+#define   O_PARSERCONFIGREG__USECAM                                 2
+#define   O_PARSERCONFIGREG__USEHASH                                1
+#define   O_PARSERCONFIGREG__USEPROTO                               0
 #define R_L3CTABLE                                                  0x140
-#define   O_L3CTABLE__Offset0                                       25
-#define   W_L3CTABLE__Offset0                                       7
-#define   O_L3CTABLE__Len0                                          21
-#define   W_L3CTABLE__Len0                                          4
-#define   O_L3CTABLE__Offset1                                       14
-#define   W_L3CTABLE__Offset1                                       7
-#define   O_L3CTABLE__Len1                                          10
-#define   W_L3CTABLE__Len1                                          4
-#define   O_L3CTABLE__Offset2                                       4
-#define   W_L3CTABLE__Offset2                                       6
-#define   O_L3CTABLE__Len2                                          0
-#define   W_L3CTABLE__Len2                                          4
-#define   O_L3CTABLE__L3HdrOffset                                   26
-#define   W_L3CTABLE__L3HdrOffset                                   6
-#define   O_L3CTABLE__L4ProtoOffset                                 20
-#define   W_L3CTABLE__L4ProtoOffset                                 6
-#define   O_L3CTABLE__IPChksumCompute                               19
-#define   O_L3CTABLE__L4Classify                                    18
-#define   O_L3CTABLE__L2Proto                                       16
-#define   W_L3CTABLE__L2Proto                                       2
-#define   O_L3CTABLE__L3ProtoKey                                    0
-#define   W_L3CTABLE__L3ProtoKey                                    16
+#define   O_L3CTABLE__OFFSET0                                       25
+#define   W_L3CTABLE__OFFSET0                                       7
+#define   O_L3CTABLE__LEN0                                          21
+#define   W_L3CTABLE__LEN0                                          4
+#define   O_L3CTABLE__OFFSET1                                       14
+#define   W_L3CTABLE__OFFSET1                                       7
+#define   O_L3CTABLE__LEN1                                          10
+#define   W_L3CTABLE__LEN1                                          4
+#define   O_L3CTABLE__OFFSET2                                       4
+#define   W_L3CTABLE__OFFSET2                                       6
+#define   O_L3CTABLE__LEN2                                          0
+#define   W_L3CTABLE__LEN2                                          4
+#define   O_L3CTABLE__L3HDROFFSET                                   26
+#define   W_L3CTABLE__L3HDROFFSET                                   6
+#define   O_L3CTABLE__L4PROTOOFFSET                                 20
+#define   W_L3CTABLE__L4PROTOOFFSET                                 6
+#define   O_L3CTABLE__IPCHKSUMCOMPUTE                               19
+#define   O_L3CTABLE__L4CLASSIFY                                    18
+#define   O_L3CTABLE__L2PROTO                                       16
+#define   W_L3CTABLE__L2PROTO                                       2
+#define   O_L3CTABLE__L3PROTOKEY                                    0
+#define   W_L3CTABLE__L3PROTOKEY                                    16
 #define R_L4CTABLE                                                  0x160
-#define   O_L4CTABLE__Offset0                                       21
-#define   W_L4CTABLE__Offset0                                       6
-#define   O_L4CTABLE__Len0                                          17
-#define   W_L4CTABLE__Len0                                          4
-#define   O_L4CTABLE__Offset1                                       11
-#define   W_L4CTABLE__Offset1                                       6
-#define   O_L4CTABLE__Len1                                          7
-#define   W_L4CTABLE__Len1                                          4
-#define   O_L4CTABLE__TCPChksumEnable                               0
+#define   O_L4CTABLE__OFFSET0                                       21
+#define   W_L4CTABLE__OFFSET0                                       6
+#define   O_L4CTABLE__LEN0                                          17
+#define   W_L4CTABLE__LEN0                                          4
+#define   O_L4CTABLE__OFFSET1                                       11
+#define   W_L4CTABLE__OFFSET1                                       6
+#define   O_L4CTABLE__LEN1                                          7
+#define   W_L4CTABLE__LEN1                                          4
+#define   O_L4CTABLE__TCPCHKSUMENABLE                               0
 #define R_CAM4X128TABLE                                             0x172
-#define   O_CAM4X128TABLE__ClassId                                  7
-#define   W_CAM4X128TABLE__ClassId                                  2
-#define   O_CAM4X128TABLE__BucketId                                 1
-#define   W_CAM4X128TABLE__BucketId                                 6
-#define   O_CAM4X128TABLE__UseBucket                                0
+#define   O_CAM4X128TABLE__CLASSID                                  7
+#define   W_CAM4X128TABLE__CLASSID                                  2
+#define   O_CAM4X128TABLE__BUCKETID                                 1
+#define   W_CAM4X128TABLE__BUCKETID                                 6
+#define   O_CAM4X128TABLE__USEBUCKET                                0
 #define R_CAM4X128KEY                                               0x180
 #define R_TRANSLATETABLE                                            0x1A0
 #define R_DMACR0                                                    0x200
-#define   O_DMACR0__Data0WrMaxCr                                    27
-#define   W_DMACR0__Data0WrMaxCr                                    3
-#define   O_DMACR0__Data0RdMaxCr                                    24
-#define   W_DMACR0__Data0RdMaxCr                                    3
-#define   O_DMACR0__Data1WrMaxCr                                    21
-#define   W_DMACR0__Data1WrMaxCr                                    3
-#define   O_DMACR0__Data1RdMaxCr                                    18
-#define   W_DMACR0__Data1RdMaxCr                                    3
-#define   O_DMACR0__Data2WrMaxCr                                    15
-#define   W_DMACR0__Data2WrMaxCr                                    3
-#define   O_DMACR0__Data2RdMaxCr                                    12
-#define   W_DMACR0__Data2RdMaxCr                                    3
-#define   O_DMACR0__Data3WrMaxCr                                    9
-#define   W_DMACR0__Data3WrMaxCr                                    3
-#define   O_DMACR0__Data3RdMaxCr                                    6
-#define   W_DMACR0__Data3RdMaxCr                                    3
-#define   O_DMACR0__Data4WrMaxCr                                    3
-#define   W_DMACR0__Data4WrMaxCr                                    3
-#define   O_DMACR0__Data4RdMaxCr                                    0
-#define   W_DMACR0__Data4RdMaxCr                                    3
+#define   O_DMACR0__DATA0WRMAXCR                                    27
+#define   W_DMACR0__DATA0WRMAXCR                                    3
+#define   O_DMACR0__DATA0RDMAXCR                                    24
+#define   W_DMACR0__DATA0RDMAXCR                                    3
+#define   O_DMACR0__DATA1WRMAXCR                                    21
+#define   W_DMACR0__DATA1WRMAXCR                                    3
+#define   O_DMACR0__DATA1RDMAXCR                                    18
+#define   W_DMACR0__DATA1RDMAXCR                                    3
+#define   O_DMACR0__DATA2WRMAXCR                                    15
+#define   W_DMACR0__DATA2WRMAXCR                                    3
+#define   O_DMACR0__DATA2RDMAXCR                                    12
+#define   W_DMACR0__DATA2RDMAXCR                                    3
+#define   O_DMACR0__DATA3WRMAXCR                                    9
+#define   W_DMACR0__DATA3WRMAXCR                                    3
+#define   O_DMACR0__DATA3RDMAXCR                                    6
+#define   W_DMACR0__DATA3RDMAXCR                                    3
+#define   O_DMACR0__DATA4WRMAXCR                                    3
+#define   W_DMACR0__DATA4WRMAXCR                                    3
+#define   O_DMACR0__DATA4RDMAXCR                                    0
+#define   W_DMACR0__DATA4RDMAXCR                                    3
 #define R_DMACR1                                                    0x201
-#define   O_DMACR1__Data5WrMaxCr                                    27
-#define   W_DMACR1__Data5WrMaxCr                                    3
-#define   O_DMACR1__Data5RdMaxCr                                    24
-#define   W_DMACR1__Data5RdMaxCr                                    3
-#define   O_DMACR1__Data6WrMaxCr                                    21
-#define   W_DMACR1__Data6WrMaxCr                                    3
-#define   O_DMACR1__Data6RdMaxCr                                    18
-#define   W_DMACR1__Data6RdMaxCr                                    3
-#define   O_DMACR1__Data7WrMaxCr                                    15
-#define   W_DMACR1__Data7WrMaxCr                                    3
-#define   O_DMACR1__Data7RdMaxCr                                    12
-#define   W_DMACR1__Data7RdMaxCr                                    3
-#define   O_DMACR1__Data8WrMaxCr                                    9
-#define   W_DMACR1__Data8WrMaxCr                                    3
-#define   O_DMACR1__Data8RdMaxCr                                    6
-#define   W_DMACR1__Data8RdMaxCr                                    3
-#define   O_DMACR1__Data9WrMaxCr                                    3
-#define   W_DMACR1__Data9WrMaxCr                                    3
-#define   O_DMACR1__Data9RdMaxCr                                    0
-#define   W_DMACR1__Data9RdMaxCr                                    3
+#define   O_DMACR1__DATA5WRMAXCR                                    27
+#define   W_DMACR1__DATA5WRMAXCR                                    3
+#define   O_DMACR1__DATA5RDMAXCR                                    24
+#define   W_DMACR1__DATA5RDMAXCR                                    3
+#define   O_DMACR1__DATA6WRMAXCR                                    21
+#define   W_DMACR1__DATA6WRMAXCR                                    3
+#define   O_DMACR1__DATA6RDMAXCR                                    18
+#define   W_DMACR1__DATA6RDMAXCR                                    3
+#define   O_DMACR1__DATA7WRMAXCR                                    15
+#define   W_DMACR1__DATA7WRMAXCR                                    3
+#define   O_DMACR1__DATA7RDMAXCR                                    12
+#define   W_DMACR1__DATA7RDMAXCR                                    3
+#define   O_DMACR1__DATA8WRMAXCR                                    9
+#define   W_DMACR1__DATA8WRMAXCR                                    3
+#define   O_DMACR1__DATA8RDMAXCR                                    6
+#define   W_DMACR1__DATA8RDMAXCR                                    3
+#define   O_DMACR1__DATA9WRMAXCR                                    3
+#define   W_DMACR1__DATA9WRMAXCR                                    3
+#define   O_DMACR1__DATA9RDMAXCR                                    0
+#define   W_DMACR1__DATA9RDMAXCR                                    3
 #define R_DMACR2                                                    0x202
-#define   O_DMACR2__Data10WrMaxCr                                   27
-#define   W_DMACR2__Data10WrMaxCr                                   3
-#define   O_DMACR2__Data10RdMaxCr                                   24
-#define   W_DMACR2__Data10RdMaxCr                                   3
-#define   O_DMACR2__Data11WrMaxCr                                   21
-#define   W_DMACR2__Data11WrMaxCr                                   3
-#define   O_DMACR2__Data11RdMaxCr                                   18
-#define   W_DMACR2__Data11RdMaxCr                                   3
-#define   O_DMACR2__Data12WrMaxCr                                   15
-#define   W_DMACR2__Data12WrMaxCr                                   3
-#define   O_DMACR2__Data12RdMaxCr                                   12
-#define   W_DMACR2__Data12RdMaxCr                                   3
-#define   O_DMACR2__Data13WrMaxCr                                   9
-#define   W_DMACR2__Data13WrMaxCr                                   3
-#define   O_DMACR2__Data13RdMaxCr                                   6
-#define   W_DMACR2__Data13RdMaxCr                                   3
-#define   O_DMACR2__Data14WrMaxCr                                   3
-#define   W_DMACR2__Data14WrMaxCr                                   3
-#define   O_DMACR2__Data14RdMaxCr                                   0
-#define   W_DMACR2__Data14RdMaxCr                                   3
+#define   O_DMACR2__DATA10WRMAXCR                                   27
+#define   W_DMACR2__DATA10WRMAXCR                                   3
+#define   O_DMACR2__DATA10RDMAXCR                                   24
+#define   W_DMACR2__DATA10RDMAXCR                                   3
+#define   O_DMACR2__DATA11WRMAXCR                                   21
+#define   W_DMACR2__DATA11WRMAXCR                                   3
+#define   O_DMACR2__DATA11RDMAXCR                                   18
+#define   W_DMACR2__DATA11RDMAXCR                                   3
+#define   O_DMACR2__DATA12WRMAXCR                                   15
+#define   W_DMACR2__DATA12WRMAXCR                                   3
+#define   O_DMACR2__DATA12RDMAXCR                                   12
+#define   W_DMACR2__DATA12RDMAXCR                                   3
+#define   O_DMACR2__DATA13WRMAXCR                                   9
+#define   W_DMACR2__DATA13WRMAXCR                                   3
+#define   O_DMACR2__DATA13RDMAXCR                                   6
+#define   W_DMACR2__DATA13RDMAXCR                                   3
+#define   O_DMACR2__DATA14WRMAXCR                                   3
+#define   W_DMACR2__DATA14WRMAXCR                                   3
+#define   O_DMACR2__DATA14RDMAXCR                                   0
+#define   W_DMACR2__DATA14RDMAXCR                                   3
 #define R_DMACR3                                                    0x203
-#define   O_DMACR3__Data15WrMaxCr                                   27
-#define   W_DMACR3__Data15WrMaxCr                                   3
-#define   O_DMACR3__Data15RdMaxCr                                   24
-#define   W_DMACR3__Data15RdMaxCr                                   3
-#define   O_DMACR3__SpClassWrMaxCr                                  21
-#define   W_DMACR3__SpClassWrMaxCr                                  3
-#define   O_DMACR3__SpClassRdMaxCr                                  18
-#define   W_DMACR3__SpClassRdMaxCr                                  3
-#define   O_DMACR3__JumFrInWrMaxCr                                  15
-#define   W_DMACR3__JumFrInWrMaxCr                                  3
-#define   O_DMACR3__JumFrInRdMaxCr                                  12
-#define   W_DMACR3__JumFrInRdMaxCr                                  3
-#define   O_DMACR3__RegFrInWrMaxCr                                  9
-#define   W_DMACR3__RegFrInWrMaxCr                                  3
-#define   O_DMACR3__RegFrInRdMaxCr                                  6
-#define   W_DMACR3__RegFrInRdMaxCr                                  3
-#define   O_DMACR3__FrOutWrMaxCr                                    3
-#define   W_DMACR3__FrOutWrMaxCr                                    3
-#define   O_DMACR3__FrOutRdMaxCr                                    0
-#define   W_DMACR3__FrOutRdMaxCr                                    3
+#define   O_DMACR3__DATA15WRMAXCR                                   27
+#define   W_DMACR3__DATA15WRMAXCR                                   3
+#define   O_DMACR3__DATA15RDMAXCR                                   24
+#define   W_DMACR3__DATA15RDMAXCR                                   3
+#define   O_DMACR3__SPCLASSWRMAXCR                                  21
+#define   W_DMACR3__SPCLASSWRMAXCR                                  3
+#define   O_DMACR3__SPCLASSRDMAXCR                                  18
+#define   W_DMACR3__SPCLASSRDMAXCR                                  3
+#define   O_DMACR3__JUMFRINWRMAXCR                                  15
+#define   W_DMACR3__JUMFRINWRMAXCR                                  3
+#define   O_DMACR3__JUMFRINRDMAXCR                                  12
+#define   W_DMACR3__JUMFRINRDMAXCR                                  3
+#define   O_DMACR3__REGFRINWRMAXCR                                  9
+#define   W_DMACR3__REGFRINWRMAXCR                                  3
+#define   O_DMACR3__REGFRINRDMAXCR                                  6
+#define   W_DMACR3__REGFRINRDMAXCR                                  3
+#define   O_DMACR3__FROUTWRMAXCR                                    3
+#define   W_DMACR3__FROUTWRMAXCR                                    3
+#define   O_DMACR3__FROUTRDMAXCR                                    0
+#define   W_DMACR3__FROUTRDMAXCR                                    3
 #define R_REG_FRIN_SPILL_MEM_START_0                                0x204
-#define   O_REG_FRIN_SPILL_MEM_START_0__RegFrInSpillMemStart0        0
-#define   W_REG_FRIN_SPILL_MEM_START_0__RegFrInSpillMemStart0       32
+#define   O_REG_FRIN_SPILL_MEM_START_0__REGFRINSPILLMEMSTART0        0
+#define   W_REG_FRIN_SPILL_MEM_START_0__REGFRINSPILLMEMSTART0       32
 #define R_REG_FRIN_SPILL_MEM_START_1                                0x205
-#define   O_REG_FRIN_SPILL_MEM_START_1__RegFrInSpillMemStart1        0
-#define   W_REG_FRIN_SPILL_MEM_START_1__RegFrInSpillMemStart1        3
+#define   O_REG_FRIN_SPILL_MEM_START_1__REGFRINSPILLMEMSTART1        0
+#define   W_REG_FRIN_SPILL_MEM_START_1__REGFRINSPILLMEMSTART1        3
 #define R_REG_FRIN_SPILL_MEM_SIZE                                   0x206
-#define   O_REG_FRIN_SPILL_MEM_SIZE__RegFrInSpillMemSize             0
-#define   W_REG_FRIN_SPILL_MEM_SIZE__RegFrInSpillMemSize            32
+#define   O_REG_FRIN_SPILL_MEM_SIZE__REGFRINSPILLMEMSIZE             0
+#define   W_REG_FRIN_SPILL_MEM_SIZE__REGFRINSPILLMEMSIZE            32
 #define R_FROUT_SPILL_MEM_START_0                                   0x207
-#define   O_FROUT_SPILL_MEM_START_0__FrOutSpillMemStart0             0
-#define   W_FROUT_SPILL_MEM_START_0__FrOutSpillMemStart0            32
+#define   O_FROUT_SPILL_MEM_START_0__FROUTSPILLMEMSTART0             0
+#define   W_FROUT_SPILL_MEM_START_0__FROUTSPILLMEMSTART0            32
 #define R_FROUT_SPILL_MEM_START_1                                   0x208
-#define   O_FROUT_SPILL_MEM_START_1__FrOutSpillMemStart1             0
-#define   W_FROUT_SPILL_MEM_START_1__FrOutSpillMemStart1             3
+#define   O_FROUT_SPILL_MEM_START_1__FROUTSPILLMEMSTART1             0
+#define   W_FROUT_SPILL_MEM_START_1__FROUTSPILLMEMSTART1             3
 #define R_FROUT_SPILL_MEM_SIZE                                      0x209
-#define   O_FROUT_SPILL_MEM_SIZE__FrOutSpillMemSize                  0
-#define   W_FROUT_SPILL_MEM_SIZE__FrOutSpillMemSize                 32
+#define   O_FROUT_SPILL_MEM_SIZE__FROUTSPILLMEMSIZE                  0
+#define   W_FROUT_SPILL_MEM_SIZE__FROUTSPILLMEMSIZE                 32
 #define R_CLASS0_SPILL_MEM_START_0                                  0x20A
-#define   O_CLASS0_SPILL_MEM_START_0__Class0SpillMemStart0           0
-#define   W_CLASS0_SPILL_MEM_START_0__Class0SpillMemStart0          32
+#define   O_CLASS0_SPILL_MEM_START_0__CLASS0SPILLMEMSTART0           0
+#define   W_CLASS0_SPILL_MEM_START_0__CLASS0SPILLMEMSTART0          32
 #define R_CLASS0_SPILL_MEM_START_1                                  0x20B
-#define   O_CLASS0_SPILL_MEM_START_1__Class0SpillMemStart1           0
-#define   W_CLASS0_SPILL_MEM_START_1__Class0SpillMemStart1           3
+#define   O_CLASS0_SPILL_MEM_START_1__CLASS0SPILLMEMSTART1           0
+#define   W_CLASS0_SPILL_MEM_START_1__CLASS0SPILLMEMSTART1           3
 #define R_CLASS0_SPILL_MEM_SIZE                                     0x20C
-#define   O_CLASS0_SPILL_MEM_SIZE__Class0SpillMemSize                0
-#define   W_CLASS0_SPILL_MEM_SIZE__Class0SpillMemSize               32
+#define   O_CLASS0_SPILL_MEM_SIZE__CLASS0SPILLMEMSIZE                0
+#define   W_CLASS0_SPILL_MEM_SIZE__CLASS0SPILLMEMSIZE               32
 #define R_JUMFRIN_SPILL_MEM_START_0                                 0x20D
-#define   O_JUMFRIN_SPILL_MEM_START_0__JumFrInSpillMemStar0          0
-#define   W_JUMFRIN_SPILL_MEM_START_0__JumFrInSpillMemStar0         32
+#define   O_JUMFRIN_SPILL_MEM_START_0__JUMFRINSPILLMEMSTART0          0
+#define   W_JUMFRIN_SPILL_MEM_START_0__JUMFRINSPILLMEMSTART0         32
 #define R_JUMFRIN_SPILL_MEM_START_1                                 0x20E
-#define   O_JUMFRIN_SPILL_MEM_START_1__JumFrInSpillMemStart1         0
-#define   W_JUMFRIN_SPILL_MEM_START_1__JumFrInSpillMemStart1         3
+#define   O_JUMFRIN_SPILL_MEM_START_1__JUMFRINSPILLMEMSTART1         0
+#define   W_JUMFRIN_SPILL_MEM_START_1__JUMFRINSPILLMEMSTART1         3
 #define R_JUMFRIN_SPILL_MEM_SIZE                                    0x20F
-#define   O_JUMFRIN_SPILL_MEM_SIZE__JumFrInSpillMemSize              0
-#define   W_JUMFRIN_SPILL_MEM_SIZE__JumFrInSpillMemSize             32
+#define   O_JUMFRIN_SPILL_MEM_SIZE__JUMFRINSPILLMEMSIZE              0
+#define   W_JUMFRIN_SPILL_MEM_SIZE__JUMFRINSPILLMEMSIZE             32
 #define R_CLASS1_SPILL_MEM_START_0                                  0x210
-#define   O_CLASS1_SPILL_MEM_START_0__Class1SpillMemStart0           0
-#define   W_CLASS1_SPILL_MEM_START_0__Class1SpillMemStart0          32
+#define   O_CLASS1_SPILL_MEM_START_0__CLASS1SPILLMEMSTART0           0
+#define   W_CLASS1_SPILL_MEM_START_0__CLASS1SPILLMEMSTART0          32
 #define R_CLASS1_SPILL_MEM_START_1                                  0x211
-#define   O_CLASS1_SPILL_MEM_START_1__Class1SpillMemStart1           0
-#define   W_CLASS1_SPILL_MEM_START_1__Class1SpillMemStart1           3
+#define   O_CLASS1_SPILL_MEM_START_1__CLASS1SPILLMEMSTART1           0
+#define   W_CLASS1_SPILL_MEM_START_1__CLASS1SPILLMEMSTART1           3
 #define R_CLASS1_SPILL_MEM_SIZE                                     0x212
-#define   O_CLASS1_SPILL_MEM_SIZE__Class1SpillMemSize                0
-#define   W_CLASS1_SPILL_MEM_SIZE__Class1SpillMemSize               32
+#define   O_CLASS1_SPILL_MEM_SIZE__CLASS1SPILLMEMSIZE                0
+#define   W_CLASS1_SPILL_MEM_SIZE__CLASS1SPILLMEMSIZE               32
 #define R_CLASS2_SPILL_MEM_START_0                                  0x213
-#define   O_CLASS2_SPILL_MEM_START_0__Class2SpillMemStart0           0
-#define   W_CLASS2_SPILL_MEM_START_0__Class2SpillMemStart0          32
+#define   O_CLASS2_SPILL_MEM_START_0__CLASS2SPILLMEMSTART0           0
+#define   W_CLASS2_SPILL_MEM_START_0__CLASS2SPILLMEMSTART0          32
 #define R_CLASS2_SPILL_MEM_START_1                                  0x214
-#define   O_CLASS2_SPILL_MEM_START_1__Class2SpillMemStart1           0
-#define   W_CLASS2_SPILL_MEM_START_1__Class2SpillMemStart1           3
+#define   O_CLASS2_SPILL_MEM_START_1__CLASS2SPILLMEMSTART1           0
+#define   W_CLASS2_SPILL_MEM_START_1__CLASS2SPILLMEMSTART1           3
 #define R_CLASS2_SPILL_MEM_SIZE                                     0x215
-#define   O_CLASS2_SPILL_MEM_SIZE__Class2SpillMemSize                0
-#define   W_CLASS2_SPILL_MEM_SIZE__Class2SpillMemSize               32
+#define   O_CLASS2_SPILL_MEM_SIZE__CLASS2SPILLMEMSIZE                0
+#define   W_CLASS2_SPILL_MEM_SIZE__CLASS2SPILLMEMSIZE               32
 #define R_CLASS3_SPILL_MEM_START_0                                  0x216
-#define   O_CLASS3_SPILL_MEM_START_0__Class3SpillMemStart0           0
-#define   W_CLASS3_SPILL_MEM_START_0__Class3SpillMemStart0          32
+#define   O_CLASS3_SPILL_MEM_START_0__CLASS3SPILLMEMSTART0           0
+#define   W_CLASS3_SPILL_MEM_START_0__CLASS3SPILLMEMSTART0          32
 #define R_CLASS3_SPILL_MEM_START_1                                  0x217
-#define   O_CLASS3_SPILL_MEM_START_1__Class3SpillMemStart1           0
-#define   W_CLASS3_SPILL_MEM_START_1__Class3SpillMemStart1           3
+#define   O_CLASS3_SPILL_MEM_START_1__CLASS3SPILLMEMSTART1           0
+#define   W_CLASS3_SPILL_MEM_START_1__CLASS3SPILLMEMSTART1           3
 #define R_CLASS3_SPILL_MEM_SIZE                                     0x218
-#define   O_CLASS3_SPILL_MEM_SIZE__Class3SpillMemSize                0
-#define   W_CLASS3_SPILL_MEM_SIZE__Class3SpillMemSize               32
+#define   O_CLASS3_SPILL_MEM_SIZE__CLASS3SPILLMEMSIZE                0
+#define   W_CLASS3_SPILL_MEM_SIZE__CLASS3SPILLMEMSIZE               32
 #define R_REG_FRIN1_SPILL_MEM_START_0                               0x219
 #define R_REG_FRIN1_SPILL_MEM_START_1                               0x21a
 #define R_REG_FRIN1_SPILL_MEM_SIZE                                  0x21b
@@ -679,244 +679,244 @@
 #define   O_SPISTRV3__EG_STRV_THRESH_15                             0
 #define   W_SPISTRV3__EG_STRV_THRESH_15                             7
 #define R_TXDATAFIFO0                                               0x221
-#define   O_TXDATAFIFO0__Tx0DataFifoStart                           24
-#define   W_TXDATAFIFO0__Tx0DataFifoStart                           7
-#define   O_TXDATAFIFO0__Tx0DataFifoSize                            16
-#define   W_TXDATAFIFO0__Tx0DataFifoSize                            7
-#define   O_TXDATAFIFO0__Tx1DataFifoStart                           8
-#define   W_TXDATAFIFO0__Tx1DataFifoStart                           7
-#define   O_TXDATAFIFO0__Tx1DataFifoSize                            0
-#define   W_TXDATAFIFO0__Tx1DataFifoSize                            7
+#define   O_TXDATAFIFO0__TX0DATAFIFOSTART                           24
+#define   W_TXDATAFIFO0__TX0DATAFIFOSTART                           7
+#define   O_TXDATAFIFO0__TX0DATAFIFOSIZE                            16
+#define   W_TXDATAFIFO0__TX0DATAFIFOSIZE                            7
+#define   O_TXDATAFIFO0__TX1DATAFIFOSTART                           8
+#define   W_TXDATAFIFO0__TX1DATAFIFOSTART                           7
+#define   O_TXDATAFIFO0__TX1DATAFIFOSIZE                            0
+#define   W_TXDATAFIFO0__TX1DATAFIFOSIZE                            7
 #define R_TXDATAFIFO1                                               0x222
-#define   O_TXDATAFIFO1__Tx2DataFifoStart                           24
-#define   W_TXDATAFIFO1__Tx2DataFifoStart                           7
-#define   O_TXDATAFIFO1__Tx2DataFifoSize                            16
-#define   W_TXDATAFIFO1__Tx2DataFifoSize                            7
-#define   O_TXDATAFIFO1__Tx3DataFifoStart                           8
-#define   W_TXDATAFIFO1__Tx3DataFifoStart                           7
-#define   O_TXDATAFIFO1__Tx3DataFifoSize                            0
-#define   W_TXDATAFIFO1__Tx3DataFifoSize                            7
+#define   O_TXDATAFIFO1__TX2DATAFIFOSTART                           24
+#define   W_TXDATAFIFO1__TX2DATAFIFOSTART                           7
+#define   O_TXDATAFIFO1__TX2DATAFIFOSIZE                            16
+#define   W_TXDATAFIFO1__TX2DATAFIFOSIZE                            7
+#define   O_TXDATAFIFO1__TX3DATAFIFOSTART                           8
+#define   W_TXDATAFIFO1__TX3DATAFIFOSTART                           7
+#define   O_TXDATAFIFO1__TX3DATAFIFOSIZE                            0
+#define   W_TXDATAFIFO1__TX3DATAFIFOSIZE                            7
 #define R_TXDATAFIFO2                                               0x223
-#define   O_TXDATAFIFO2__Tx4DataFifoStart                           24
-#define   W_TXDATAFIFO2__Tx4DataFifoStart                           7
-#define   O_TXDATAFIFO2__Tx4DataFifoSize                            16
-#define   W_TXDATAFIFO2__Tx4DataFifoSize                            7
-#define   O_TXDATAFIFO2__Tx5DataFifoStart                           8
-#define   W_TXDATAFIFO2__Tx5DataFifoStart                           7
-#define   O_TXDATAFIFO2__Tx5DataFifoSize                            0
-#define   W_TXDATAFIFO2__Tx5DataFifoSize                            7
+#define   O_TXDATAFIFO2__TX4DATAFIFOSTART                           24
+#define   W_TXDATAFIFO2__TX4DATAFIFOSTART                           7
+#define   O_TXDATAFIFO2__TX4DATAFIFOSIZE                            16
+#define   W_TXDATAFIFO2__TX4DATAFIFOSIZE                            7
+#define   O_TXDATAFIFO2__TX5DATAFIFOSTART                           8
+#define   W_TXDATAFIFO2__TX5DATAFIFOSTART                           7
+#define   O_TXDATAFIFO2__TX5DATAFIFOSIZE                            0
+#define   W_TXDATAFIFO2__TX5DATAFIFOSIZE                            7
 #define R_TXDATAFIFO3                                               0x224
-#define   O_TXDATAFIFO3__Tx6DataFifoStart                           24
-#define   W_TXDATAFIFO3__Tx6DataFifoStart                           7
-#define   O_TXDATAFIFO3__Tx6DataFifoSize                            16
-#define   W_TXDATAFIFO3__Tx6DataFifoSize                            7
-#define   O_TXDATAFIFO3__Tx7DataFifoStart                           8
-#define   W_TXDATAFIFO3__Tx7DataFifoStart                           7
-#define   O_TXDATAFIFO3__Tx7DataFifoSize                            0
-#define   W_TXDATAFIFO3__Tx7DataFifoSize                            7
+#define   O_TXDATAFIFO3__TX6DATAFIFOSTART                           24
+#define   W_TXDATAFIFO3__TX6DATAFIFOSTART                           7
+#define   O_TXDATAFIFO3__TX6DATAFIFOSIZE                            16
+#define   W_TXDATAFIFO3__TX6DATAFIFOSIZE                            7
+#define   O_TXDATAFIFO3__TX7DATAFIFOSTART                           8
+#define   W_TXDATAFIFO3__TX7DATAFIFOSTART                           7
+#define   O_TXDATAFIFO3__TX7DATAFIFOSIZE                            0
+#define   W_TXDATAFIFO3__TX7DATAFIFOSIZE                            7
 #define R_TXDATAFIFO4                                               0x225
-#define   O_TXDATAFIFO4__Tx8DataFifoStart                           24
-#define   W_TXDATAFIFO4__Tx8DataFifoStart                           7
-#define   O_TXDATAFIFO4__Tx8DataFifoSize                            16
-#define   W_TXDATAFIFO4__Tx8DataFifoSize                            7
-#define   O_TXDATAFIFO4__Tx9DataFifoStart                           8
-#define   W_TXDATAFIFO4__Tx9DataFifoStart                           7
-#define   O_TXDATAFIFO4__Tx9DataFifoSize                            0
-#define   W_TXDATAFIFO4__Tx9DataFifoSize                            7
+#define   O_TXDATAFIFO4__TX8DATAFIFOSTART                           24
+#define   W_TXDATAFIFO4__TX8DATAFIFOSTART                           7
+#define   O_TXDATAFIFO4__TX8DATAFIFOSIZE                            16
+#define   W_TXDATAFIFO4__TX8DATAFIFOSIZE                            7
+#define   O_TXDATAFIFO4__TX9DATAFIFOSTART                           8
+#define   W_TXDATAFIFO4__TX9DATAFIFOSTART                           7
+#define   O_TXDATAFIFO4__TX9DATAFIFOSIZE                            0
+#define   W_TXDATAFIFO4__TX9DATAFIFOSIZE                            7
 #define R_TXDATAFIFO5                                               0x226
-#define   O_TXDATAFIFO5__Tx10DataFifoStart                          24
-#define   W_TXDATAFIFO5__Tx10DataFifoStart                          7
-#define   O_TXDATAFIFO5__Tx10DataFifoSize                           16
-#define   W_TXDATAFIFO5__Tx10DataFifoSize                           7
-#define   O_TXDATAFIFO5__Tx11DataFifoStart                          8
-#define   W_TXDATAFIFO5__Tx11DataFifoStart                          7
-#define   O_TXDATAFIFO5__Tx11DataFifoSize                           0
-#define   W_TXDATAFIFO5__Tx11DataFifoSize                           7
+#define   O_TXDATAFIFO5__TX10DATAFIFOSTART                          24
+#define   W_TXDATAFIFO5__TX10DATAFIFOSTART                          7
+#define   O_TXDATAFIFO5__TX10DATAFIFOSIZE                           16
+#define   W_TXDATAFIFO5__TX10DATAFIFOSIZE                           7
+#define   O_TXDATAFIFO5__TX11DATAFIFOSTART                          8
+#define   W_TXDATAFIFO5__TX11DATAFIFOSTART                          7
+#define   O_TXDATAFIFO5__TX11DATAFIFOSIZE                           0
+#define   W_TXDATAFIFO5__TX11DATAFIFOSIZE                           7
 #define R_TXDATAFIFO6                                               0x227
-#define   O_TXDATAFIFO6__Tx12DataFifoStart                          24
-#define   W_TXDATAFIFO6__Tx12DataFifoStart                          7
-#define   O_TXDATAFIFO6__Tx12DataFifoSize                           16
-#define   W_TXDATAFIFO6__Tx12DataFifoSize                           7
-#define   O_TXDATAFIFO6__Tx13DataFifoStart                          8
-#define   W_TXDATAFIFO6__Tx13DataFifoStart                          7
-#define   O_TXDATAFIFO6__Tx13DataFifoSize                           0
-#define   W_TXDATAFIFO6__Tx13DataFifoSize                           7
+#define   O_TXDATAFIFO6__TX12DATAFIFOSTART                          24
+#define   W_TXDATAFIFO6__TX12DATAFIFOSTART                          7
+#define   O_TXDATAFIFO6__TX12DATAFIFOSIZE                           16
+#define   W_TXDATAFIFO6__TX12DATAFIFOSIZE                           7
+#define   O_TXDATAFIFO6__TX13DATAFIFOSTART                          8
+#define   W_TXDATAFIFO6__TX13DATAFIFOSTART                          7
+#define   O_TXDATAFIFO6__TX13DATAFIFOSIZE                           0
+#define   W_TXDATAFIFO6__TX13DATAFIFOSIZE                           7
 #define R_TXDATAFIFO7                                               0x228
-#define   O_TXDATAFIFO7__Tx14DataFifoStart                          24
-#define   W_TXDATAFIFO7__Tx14DataFifoStart                          7
-#define   O_TXDATAFIFO7__Tx14DataFifoSize                           16
-#define   W_TXDATAFIFO7__Tx14DataFifoSize                           7
-#define   O_TXDATAFIFO7__Tx15DataFifoStart                          8
-#define   W_TXDATAFIFO7__Tx15DataFifoStart                          7
-#define   O_TXDATAFIFO7__Tx15DataFifoSize                           0
-#define   W_TXDATAFIFO7__Tx15DataFifoSize                           7
+#define   O_TXDATAFIFO7__TX14DATAFIFOSTART                          24
+#define   W_TXDATAFIFO7__TX14DATAFIFOSTART                          7
+#define   O_TXDATAFIFO7__TX14DATAFIFOSIZE                           16
+#define   W_TXDATAFIFO7__TX14DATAFIFOSIZE                           7
+#define   O_TXDATAFIFO7__TX15DATAFIFOSTART                          8
+#define   W_TXDATAFIFO7__TX15DATAFIFOSTART                          7
+#define   O_TXDATAFIFO7__TX15DATAFIFOSIZE                           0
+#define   W_TXDATAFIFO7__TX15DATAFIFOSIZE                           7
 #define R_RXDATAFIFO0                                               0x229
-#define   O_RXDATAFIFO0__Rx0DataFifoStart                           24
-#define   W_RXDATAFIFO0__Rx0DataFifoStart                           7
-#define   O_RXDATAFIFO0__Rx0DataFifoSize                            16
-#define   W_RXDATAFIFO0__Rx0DataFifoSize                            7
-#define   O_RXDATAFIFO0__Rx1DataFifoStart                           8
-#define   W_RXDATAFIFO0__Rx1DataFifoStart                           7
-#define   O_RXDATAFIFO0__Rx1DataFifoSize                            0
-#define   W_RXDATAFIFO0__Rx1DataFifoSize                            7
+#define   O_RXDATAFIFO0__RX0DATAFIFOSTART                           24
+#define   W_RXDATAFIFO0__RX0DATAFIFOSTART                           7
+#define   O_RXDATAFIFO0__RX0DATAFIFOSIZE                            16
+#define   W_RXDATAFIFO0__RX0DATAFIFOSIZE                            7
+#define   O_RXDATAFIFO0__RX1DATAFIFOSTART                           8
+#define   W_RXDATAFIFO0__RX1DATAFIFOSTART                           7
+#define   O_RXDATAFIFO0__RX1DATAFIFOSIZE                            0
+#define   W_RXDATAFIFO0__RX1DATAFIFOSIZE                            7
 #define R_RXDATAFIFO1                                               0x22A
-#define   O_RXDATAFIFO1__Rx2DataFifoStart                           24
-#define   W_RXDATAFIFO1__Rx2DataFifoStart                           7
-#define   O_RXDATAFIFO1__Rx2DataFifoSize                            16
-#define   W_RXDATAFIFO1__Rx2DataFifoSize                            7
-#define   O_RXDATAFIFO1__Rx3DataFifoStart                           8
-#define   W_RXDATAFIFO1__Rx3DataFifoStart                           7
-#define   O_RXDATAFIFO1__Rx3DataFifoSize                            0
-#define   W_RXDATAFIFO1__Rx3DataFifoSize                            7
+#define   O_RXDATAFIFO1__RX2DATAFIFOSTART                           24
+#define   W_RXDATAFIFO1__RX2DATAFIFOSTART                           7
+#define   O_RXDATAFIFO1__RX2DATAFIFOSIZE                            16
+#define   W_RXDATAFIFO1__RX2DATAFIFOSIZE                            7
+#define   O_RXDATAFIFO1__RX3DATAFIFOSTART                           8
+#define   W_RXDATAFIFO1__RX3DATAFIFOSTART                           7
+#define   O_RXDATAFIFO1__RX3DATAFIFOSIZE                            0
+#define   W_RXDATAFIFO1__RX3DATAFIFOSIZE                            7
 #define R_RXDATAFIFO2                                               0x22B
-#define   O_RXDATAFIFO2__Rx4DataFifoStart                           24
-#define   W_RXDATAFIFO2__Rx4DataFifoStart                           7
-#define   O_RXDATAFIFO2__Rx4DataFifoSize                            16
-#define   W_RXDATAFIFO2__Rx4DataFifoSize                            7
-#define   O_RXDATAFIFO2__Rx5DataFifoStart                           8
-#define   W_RXDATAFIFO2__Rx5DataFifoStart                           7
-#define   O_RXDATAFIFO2__Rx5DataFifoSize                            0
-#define   W_RXDATAFIFO2__Rx5DataFifoSize                            7
+#define   O_RXDATAFIFO2__RX4DATAFIFOSTART                           24
+#define   W_RXDATAFIFO2__RX4DATAFIFOSTART                           7
+#define   O_RXDATAFIFO2__RX4DATAFIFOSIZE                            16
+#define   W_RXDATAFIFO2__RX4DATAFIFOSIZE                            7
+#define   O_RXDATAFIFO2__RX5DATAFIFOSTART                           8
+#define   W_RXDATAFIFO2__RX5DATAFIFOSTART                           7
+#define   O_RXDATAFIFO2__RX5DATAFIFOSIZE                            0
+#define   W_RXDATAFIFO2__RX5DATAFIFOSIZE                            7
 #define R_RXDATAFIFO3                                               0x22C
-#define   O_RXDATAFIFO3__Rx6DataFifoStart                           24
-#define   W_RXDATAFIFO3__Rx6DataFifoStart                           7
-#define   O_RXDATAFIFO3__Rx6DataFifoSize                            16
-#define   W_RXDATAFIFO3__Rx6DataFifoSize                            7
-#define   O_RXDATAFIFO3__Rx7DataFifoStart                           8
-#define   W_RXDATAFIFO3__Rx7DataFifoStart                           7
-#define   O_RXDATAFIFO3__Rx7DataFifoSize                            0
-#define   W_RXDATAFIFO3__Rx7DataFifoSize                            7
+#define   O_RXDATAFIFO3__RX6DATAFIFOSTART                           24
+#define   W_RXDATAFIFO3__RX6DATAFIFOSTART                           7
+#define   O_RXDATAFIFO3__RX6DATAFIFOSIZE                            16
+#define   W_RXDATAFIFO3__RX6DATAFIFOSIZE                            7
+#define   O_RXDATAFIFO3__RX7DATAFIFOSTART                           8
+#define   W_RXDATAFIFO3__RX7DATAFIFOSTART                           7
+#define   O_RXDATAFIFO3__RX7DATAFIFOSIZE                            0
+#define   W_RXDATAFIFO3__RX7DATAFIFOSIZE                            7
 #define R_RXDATAFIFO4                                               0x22D
-#define   O_RXDATAFIFO4__Rx8DataFifoStart                           24
-#define   W_RXDATAFIFO4__Rx8DataFifoStart                           7
-#define   O_RXDATAFIFO4__Rx8DataFifoSize                            16
-#define   W_RXDATAFIFO4__Rx8DataFifoSize                            7
-#define   O_RXDATAFIFO4__Rx9DataFifoStart                           8
-#define   W_RXDATAFIFO4__Rx9DataFifoStart                           7
-#define   O_RXDATAFIFO4__Rx9DataFifoSize                            0
-#define   W_RXDATAFIFO4__Rx9DataFifoSize                            7
+#define   O_RXDATAFIFO4__RX8DATAFIFOSTART                           24
+#define   W_RXDATAFIFO4__RX8DATAFIFOSTART                           7
+#define   O_RXDATAFIFO4__RX8DATAFIFOSIZE                            16
+#define   W_RXDATAFIFO4__RX8DATAFIFOSIZE                            7
+#define   O_RXDATAFIFO4__RX9DATAFIFOSTART                           8
+#define   W_RXDATAFIFO4__RX9DATAFIFOSTART                           7
+#define   O_RXDATAFIFO4__RX9DATAFIFOSIZE                            0
+#define   W_RXDATAFIFO4__RX9DATAFIFOSIZE                            7
 #define R_RXDATAFIFO5                                               0x22E
-#define   O_RXDATAFIFO5__Rx10DataFifoStart                          24
-#define   W_RXDATAFIFO5__Rx10DataFifoStart                          7
-#define   O_RXDATAFIFO5__Rx10DataFifoSize                           16
-#define   W_RXDATAFIFO5__Rx10DataFifoSize                           7
-#define   O_RXDATAFIFO5__Rx11DataFifoStart                          8
-#define   W_RXDATAFIFO5__Rx11DataFifoStart                          7
-#define   O_RXDATAFIFO5__Rx11DataFifoSize                           0
-#define   W_RXDATAFIFO5__Rx11DataFifoSize                           7
+#define   O_RXDATAFIFO5__RX10DATAFIFOSTART                          24
+#define   W_RXDATAFIFO5__RX10DATAFIFOSTART                          7
+#define   O_RXDATAFIFO5__RX10DATAFIFOSIZE                           16
+#define   W_RXDATAFIFO5__RX10DATAFIFOSIZE                           7
+#define   O_RXDATAFIFO5__RX11DATAFIFOSTART                          8
+#define   W_RXDATAFIFO5__RX11DATAFIFOSTART                          7
+#define   O_RXDATAFIFO5__RX11DATAFIFOSIZE                           0
+#define   W_RXDATAFIFO5__RX11DATAFIFOSIZE                           7
 #define R_RXDATAFIFO6                                               0x22F
-#define   O_RXDATAFIFO6__Rx12DataFifoStart                          24
-#define   W_RXDATAFIFO6__Rx12DataFifoStart                          7
-#define   O_RXDATAFIFO6__Rx12DataFifoSize                           16
-#define   W_RXDATAFIFO6__Rx12DataFifoSize                           7
-#define   O_RXDATAFIFO6__Rx13DataFifoStart                          8
-#define   W_RXDATAFIFO6__Rx13DataFifoStart                          7
-#define   O_RXDATAFIFO6__Rx13DataFifoSize                           0
-#define   W_RXDATAFIFO6__Rx13DataFifoSize                           7
+#define   O_RXDATAFIFO6__RX12DATAFIFOSTART                          24
+#define   W_RXDATAFIFO6__RX12DATAFIFOSTART                          7
+#define   O_RXDATAFIFO6__RX12DATAFIFOSIZE                           16
+#define   W_RXDATAFIFO6__RX12DATAFIFOSIZE                           7
+#define   O_RXDATAFIFO6__RX13DATAFIFOSTART                          8
+#define   W_RXDATAFIFO6__RX13DATAFIFOSTART                          7
+#define   O_RXDATAFIFO6__RX13DATAFIFOSIZE                           0
+#define   W_RXDATAFIFO6__RX13DATAFIFOSIZE                           7
 #define R_RXDATAFIFO7                                               0x230
-#define   O_RXDATAFIFO7__Rx14DataFifoStart                          24
-#define   W_RXDATAFIFO7__Rx14DataFifoStart                          7
-#define   O_RXDATAFIFO7__Rx14DataFifoSize                           16
-#define   W_RXDATAFIFO7__Rx14DataFifoSize                           7
-#define   O_RXDATAFIFO7__Rx15DataFifoStart                          8
-#define   W_RXDATAFIFO7__Rx15DataFifoStart                          7
-#define   O_RXDATAFIFO7__Rx15DataFifoSize                           0
-#define   W_RXDATAFIFO7__Rx15DataFifoSize                           7
+#define   O_RXDATAFIFO7__RX14DATAFIFOSTART                          24
+#define   W_RXDATAFIFO7__RX14DATAFIFOSTART                          7
+#define   O_RXDATAFIFO7__RX14DATAFIFOSIZE                           16
+#define   W_RXDATAFIFO7__RX14DATAFIFOSIZE                           7
+#define   O_RXDATAFIFO7__RX15DATAFIFOSTART                          8
+#define   W_RXDATAFIFO7__RX15DATAFIFOSTART                          7
+#define   O_RXDATAFIFO7__RX15DATAFIFOSIZE                           0
+#define   W_RXDATAFIFO7__RX15DATAFIFOSIZE                           7
 #define R_XGMACPADCALIBRATION                                       0x231
 #define R_FREEQCARVE                                                0x233
 #define R_SPI4STATICDELAY0                                          0x240
-#define   O_SPI4STATICDELAY0__DataLine7                             28
-#define   W_SPI4STATICDELAY0__DataLine7                             4
-#define   O_SPI4STATICDELAY0__DataLine6                             24
-#define   W_SPI4STATICDELAY0__DataLine6                             4
-#define   O_SPI4STATICDELAY0__DataLine5                             20
-#define   W_SPI4STATICDELAY0__DataLine5                             4
-#define   O_SPI4STATICDELAY0__DataLine4                             16
-#define   W_SPI4STATICDELAY0__DataLine4                             4
-#define   O_SPI4STATICDELAY0__DataLine3                             12
-#define   W_SPI4STATICDELAY0__DataLine3                             4
-#define   O_SPI4STATICDELAY0__DataLine2                             8
-#define   W_SPI4STATICDELAY0__DataLine2                             4
-#define   O_SPI4STATICDELAY0__DataLine1                             4
-#define   W_SPI4STATICDELAY0__DataLine1                             4
-#define   O_SPI4STATICDELAY0__DataLine0                             0
-#define   W_SPI4STATICDELAY0__DataLine0                             4
+#define   O_SPI4STATICDELAY0__DATALINE7                             28
+#define   W_SPI4STATICDELAY0__DATALINE7                             4
+#define   O_SPI4STATICDELAY0__DATALINE6                             24
+#define   W_SPI4STATICDELAY0__DATALINE6                             4
+#define   O_SPI4STATICDELAY0__DATALINE5                             20
+#define   W_SPI4STATICDELAY0__DATALINE5                             4
+#define   O_SPI4STATICDELAY0__DATALINE4                             16
+#define   W_SPI4STATICDELAY0__DATALINE4                             4
+#define   O_SPI4STATICDELAY0__DATALINE3                             12
+#define   W_SPI4STATICDELAY0__DATALINE3                             4
+#define   O_SPI4STATICDELAY0__DATALINE2                             8
+#define   W_SPI4STATICDELAY0__DATALINE2                             4
+#define   O_SPI4STATICDELAY0__DATALINE1                             4
+#define   W_SPI4STATICDELAY0__DATALINE1                             4
+#define   O_SPI4STATICDELAY0__DATALINE0                             0
+#define   W_SPI4STATICDELAY0__DATALINE0                             4
 #define R_SPI4STATICDELAY1                                          0x241
-#define   O_SPI4STATICDELAY1__DataLine15                            28
-#define   W_SPI4STATICDELAY1__DataLine15                            4
-#define   O_SPI4STATICDELAY1__DataLine14                            24
-#define   W_SPI4STATICDELAY1__DataLine14                            4
-#define   O_SPI4STATICDELAY1__DataLine13                            20
-#define   W_SPI4STATICDELAY1__DataLine13                            4
-#define   O_SPI4STATICDELAY1__DataLine12                            16
-#define   W_SPI4STATICDELAY1__DataLine12                            4
-#define   O_SPI4STATICDELAY1__DataLine11                            12
-#define   W_SPI4STATICDELAY1__DataLine11                            4
-#define   O_SPI4STATICDELAY1__DataLine10                            8
-#define   W_SPI4STATICDELAY1__DataLine10                            4
-#define   O_SPI4STATICDELAY1__DataLine9                             4
-#define   W_SPI4STATICDELAY1__DataLine9                             4
-#define   O_SPI4STATICDELAY1__DataLine8                             0
-#define   W_SPI4STATICDELAY1__DataLine8                             4
+#define   O_SPI4STATICDELAY1__DATALINE15                            28
+#define   W_SPI4STATICDELAY1__DATALINE15                            4
+#define   O_SPI4STATICDELAY1__DATALINE14                            24
+#define   W_SPI4STATICDELAY1__DATALINE14                            4
+#define   O_SPI4STATICDELAY1__DATALINE13                            20
+#define   W_SPI4STATICDELAY1__DATALINE13                            4
+#define   O_SPI4STATICDELAY1__DATALINE12                            16
+#define   W_SPI4STATICDELAY1__DATALINE12                            4
+#define   O_SPI4STATICDELAY1__DATALINE11                            12
+#define   W_SPI4STATICDELAY1__DATALINE11                            4
+#define   O_SPI4STATICDELAY1__DATALINE10                            8
+#define   W_SPI4STATICDELAY1__DATALINE10                            4
+#define   O_SPI4STATICDELAY1__DATALINE9                             4
+#define   W_SPI4STATICDELAY1__DATALINE9                             4
+#define   O_SPI4STATICDELAY1__DATALINE8                             0
+#define   W_SPI4STATICDELAY1__DATALINE8                             4
 #define R_SPI4STATICDELAY2                                          0x242
-#define   O_SPI4STATICDELAY0__TxStat1                               8
-#define   W_SPI4STATICDELAY0__TxStat1                               4
-#define   O_SPI4STATICDELAY0__TxStat0                               4
-#define   W_SPI4STATICDELAY0__TxStat0                               4
-#define   O_SPI4STATICDELAY0__RxControl                             0
-#define   W_SPI4STATICDELAY0__RxControl                             4
+#define   O_SPI4STATICDELAY0__TXSTAT1                               8
+#define   W_SPI4STATICDELAY0__TXSTAT1                               4
+#define   O_SPI4STATICDELAY0__TXSTAT0                               4
+#define   W_SPI4STATICDELAY0__TXSTAT0                               4
+#define   O_SPI4STATICDELAY0__RXCONTROL                             0
+#define   W_SPI4STATICDELAY0__RXCONTROL                             4
 #define R_SPI4CONTROL                                               0x243
-#define   O_SPI4CONTROL__StaticDelay                                2
+#define   O_SPI4CONTROL__STATICDELAY                                2
 #define   O_SPI4CONTROL__LVDS_LVTTL                                 1
-#define   O_SPI4CONTROL__SPI4Enable                                 0
+#define   O_SPI4CONTROL__SPI4ENABLE                                 0
 #define R_CLASSWATERMARKS                                           0x244
-#define   O_CLASSWATERMARKS__Class0Watermark                        24
-#define   W_CLASSWATERMARKS__Class0Watermark                        5
-#define   O_CLASSWATERMARKS__Class1Watermark                        16
-#define   W_CLASSWATERMARKS__Class1Watermark                        5
-#define   O_CLASSWATERMARKS__Class3Watermark                        0
-#define   W_CLASSWATERMARKS__Class3Watermark                        5
+#define   O_CLASSWATERMARKS__CLASS0WATERMARK                        24
+#define   W_CLASSWATERMARKS__CLASS0WATERMARK                        5
+#define   O_CLASSWATERMARKS__CLASS1WATERMARK                        16
+#define   W_CLASSWATERMARKS__CLASS1WATERMARK                        5
+#define   O_CLASSWATERMARKS__CLASS3WATERMARK                        0
+#define   W_CLASSWATERMARKS__CLASS3WATERMARK                        5
 #define R_RXWATERMARKS1                                              0x245
-#define   O_RXWATERMARKS__Rx0DataWatermark                          24
-#define   W_RXWATERMARKS__Rx0DataWatermark                          7
-#define   O_RXWATERMARKS__Rx1DataWatermark                          16
-#define   W_RXWATERMARKS__Rx1DataWatermark                          7
-#define   O_RXWATERMARKS__Rx3DataWatermark                          0
-#define   W_RXWATERMARKS__Rx3DataWatermark                          7
+#define   O_RXWATERMARKS__RX0DATAWATERMARK                          24
+#define   W_RXWATERMARKS__RX0DATAWATERMARK                          7
+#define   O_RXWATERMARKS__RX1DATAWATERMARK                          16
+#define   W_RXWATERMARKS__RX1DATAWATERMARK                          7
+#define   O_RXWATERMARKS__RX3DATAWATERMARK                          0
+#define   W_RXWATERMARKS__RX3DATAWATERMARK                          7
 #define R_RXWATERMARKS2                                              0x246
-#define   O_RXWATERMARKS__Rx4DataWatermark                          24
-#define   W_RXWATERMARKS__Rx4DataWatermark                          7
-#define   O_RXWATERMARKS__Rx5DataWatermark                          16
-#define   W_RXWATERMARKS__Rx5DataWatermark                          7
-#define   O_RXWATERMARKS__Rx6DataWatermark                          8
-#define   W_RXWATERMARKS__Rx6DataWatermark                          7
-#define   O_RXWATERMARKS__Rx7DataWatermark                          0
-#define   W_RXWATERMARKS__Rx7DataWatermark                          7
+#define   O_RXWATERMARKS__RX4DATAWATERMARK                          24
+#define   W_RXWATERMARKS__RX4DATAWATERMARK                          7
+#define   O_RXWATERMARKS__RX5DATAWATERMARK                          16
+#define   W_RXWATERMARKS__RX5DATAWATERMARK                          7
+#define   O_RXWATERMARKS__RX6DATAWATERMARK                          8
+#define   W_RXWATERMARKS__RX6DATAWATERMARK                          7
+#define   O_RXWATERMARKS__RX7DATAWATERMARK                          0
+#define   W_RXWATERMARKS__RX7DATAWATERMARK                          7
 #define R_RXWATERMARKS3                                              0x247
-#define   O_RXWATERMARKS__Rx8DataWatermark                          24
-#define   W_RXWATERMARKS__Rx8DataWatermark                          7
-#define   O_RXWATERMARKS__Rx9DataWatermark                          16
-#define   W_RXWATERMARKS__Rx9DataWatermark                          7
-#define   O_RXWATERMARKS__Rx10DataWatermark                         8
-#define   W_RXWATERMARKS__Rx10DataWatermark                         7
-#define   O_RXWATERMARKS__Rx11DataWatermark                         0
-#define   W_RXWATERMARKS__Rx11DataWatermark                         7
+#define   O_RXWATERMARKS__RX8DATAWATERMARK                          24
+#define   W_RXWATERMARKS__RX8DATAWATERMARK                          7
+#define   O_RXWATERMARKS__RX9DATAWATERMARK                          16
+#define   W_RXWATERMARKS__RX9DATAWATERMARK                          7
+#define   O_RXWATERMARKS__RX10DATAWATERMARK                         8
+#define   W_RXWATERMARKS__RX10DATAWATERMARK                         7
+#define   O_RXWATERMARKS__RX11DATAWATERMARK                         0
+#define   W_RXWATERMARKS__RX11DATAWATERMARK                         7
 #define R_RXWATERMARKS4                                              0x248
-#define   O_RXWATERMARKS__Rx12DataWatermark                         24
-#define   W_RXWATERMARKS__Rx12DataWatermark                         7
-#define   O_RXWATERMARKS__Rx13DataWatermark                         16
-#define   W_RXWATERMARKS__Rx13DataWatermark                         7
-#define   O_RXWATERMARKS__Rx14DataWatermark                         8
-#define   W_RXWATERMARKS__Rx14DataWatermark                         7
-#define   O_RXWATERMARKS__Rx15DataWatermark                         0
-#define   W_RXWATERMARKS__Rx15DataWatermark                         7
+#define   O_RXWATERMARKS__RX12DATAWATERMARK                         24
+#define   W_RXWATERMARKS__RX12DATAWATERMARK                         7
+#define   O_RXWATERMARKS__RX13DATAWATERMARK                         16
+#define   W_RXWATERMARKS__RX13DATAWATERMARK                         7
+#define   O_RXWATERMARKS__RX14DATAWATERMARK                         8
+#define   W_RXWATERMARKS__RX14DATAWATERMARK                         7
+#define   O_RXWATERMARKS__RX15DATAWATERMARK                         0
+#define   W_RXWATERMARKS__RX15DATAWATERMARK                         7
 #define R_FREEWATERMARKS                                            0x249
-#define   O_FREEWATERMARKS__FreeOutWatermark                        16
-#define   W_FREEWATERMARKS__FreeOutWatermark                        16
-#define   O_FREEWATERMARKS__JumFrWatermark                          8
-#define   W_FREEWATERMARKS__JumFrWatermark                          7
-#define   O_FREEWATERMARKS__RegFrWatermark                          0
-#define   W_FREEWATERMARKS__RegFrWatermark                          7
+#define   O_FREEWATERMARKS__FREEOUTWATERMARK                        16
+#define   W_FREEWATERMARKS__FREEOUTWATERMARK                        16
+#define   O_FREEWATERMARKS__JUMFRWATERMARK                          8
+#define   W_FREEWATERMARKS__JUMFRWATERMARK                          7
+#define   O_FREEWATERMARKS__REGFRWATERMARK                          0
+#define   W_FREEWATERMARKS__REGFRWATERMARK                          7
 #define R_EGRESSFIFOCARVINGSLOTS                                    0x24a
 
 #define CTRL_RES0           0
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 1503ad7..c335ae2 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -38,18 +38,18 @@
 #include "nvec.h"
 
 #define I2C_CNFG			0x00
-#define I2C_CNFG_PACKET_MODE_EN		(1 << 10)
-#define I2C_CNFG_NEW_MASTER_SFM		(1 << 11)
+#define I2C_CNFG_PACKET_MODE_EN		BIT(10)
+#define I2C_CNFG_NEW_MASTER_SFM		BIT(11)
 #define I2C_CNFG_DEBOUNCE_CNT_SHIFT	12
 
 #define I2C_SL_CNFG		0x20
-#define I2C_SL_NEWSL		(1 << 2)
-#define I2C_SL_NACK		(1 << 1)
-#define I2C_SL_RESP		(1 << 0)
-#define I2C_SL_IRQ		(1 << 3)
-#define END_TRANS		(1 << 4)
-#define RCVD			(1 << 2)
-#define RNW			(1 << 1)
+#define I2C_SL_NEWSL		BIT(2)
+#define I2C_SL_NACK		BIT(1)
+#define I2C_SL_RESP		BIT(0)
+#define I2C_SL_IRQ		BIT(3)
+#define END_TRANS		BIT(4)
+#define RCVD			BIT(2)
+#define RNW			BIT(1)
 
 #define I2C_SL_RCVD		0x24
 #define I2C_SL_STATUS		0x28
@@ -148,7 +148,7 @@ static int nvec_status_notifier(struct notifier_block *nb,
 
 	dev_warn(nvec->dev, "unhandled msg type %ld\n", event_type);
 	print_hex_dump(KERN_WARNING, "payload: ", DUMP_PREFIX_NONE, 16, 1,
-		msg, msg[1] + 2, true);
+		       msg, msg[1] + 2, true);
 
 	return NOTIFY_OK;
 }
@@ -257,7 +257,7 @@ static void nvec_gpio_set_value(struct nvec_chip *nvec, int value)
  * occurred, the nvec driver may print an error.
  */
 int nvec_write_async(struct nvec_chip *nvec, const unsigned char *data,
-			short size)
+		     short size)
 {
 	struct nvec_msg *msg;
 	unsigned long flags;
@@ -313,10 +313,11 @@ int nvec_write_sync(struct nvec_chip *nvec,
 	}
 
 	dev_dbg(nvec->dev, "nvec_sync_write: 0x%04x\n",
-					nvec->sync_write_pending);
+		nvec->sync_write_pending);
 	if (!(wait_for_completion_timeout(&nvec->sync_write,
-				msecs_to_jiffies(2000)))) {
-		dev_warn(nvec->dev, "timeout waiting for sync write to complete\n");
+					  msecs_to_jiffies(2000)))) {
+		dev_warn(nvec->dev,
+			 "timeout waiting for sync write to complete\n");
 		mutex_unlock(&nvec->sync_write_mutex);
 		return -ETIMEDOUT;
 	}
@@ -422,8 +423,8 @@ static int parse_msg(struct nvec_chip *nvec, struct nvec_msg *msg)
 
 	if ((msg->data[0] >> 7) == 1 && (msg->data[0] & 0x0f) == 5)
 		print_hex_dump(KERN_WARNING, "ec system event ",
-				DUMP_PREFIX_NONE, 16, 1, msg->data,
-				msg->data[1] + 2, true);
+			       DUMP_PREFIX_NONE, 16, 1, msg->data,
+			       msg->data[1] + 2, true);
 
 	atomic_notifier_call_chain(&nvec->notifier_list, msg->data[0] & 0x8f,
 				   msg->data);
@@ -493,8 +494,8 @@ static void nvec_rx_completed(struct nvec_chip *nvec)
 {
 	if (nvec->rx->pos != nvec_msg_size(nvec->rx)) {
 		dev_err(nvec->dev, "RX incomplete: Expected %u bytes, got %u\n",
-			   (uint) nvec_msg_size(nvec->rx),
-			   (uint) nvec->rx->pos);
+			(uint)nvec_msg_size(nvec->rx),
+			(uint)nvec->rx->pos);
 
 		nvec_msg_free(nvec, nvec->rx);
 		nvec->state = 0;
@@ -688,8 +689,8 @@ static irqreturn_t nvec_interrupt(int irq, void *dev)
 	if ((status & (RCVD | RNW)) == RCVD) {
 		if (received != nvec->i2c_addr)
 			dev_err(nvec->dev,
-			"received address 0x%02x, expected 0x%02x\n",
-			received, nvec->i2c_addr);
+				"received address 0x%02x, expected 0x%02x\n",
+				received, nvec->i2c_addr);
 		nvec->state = 1;
 	}
 
@@ -778,7 +779,7 @@ static int nvec_i2c_parse_dt_pdata(struct nvec_chip *nvec)
 	}
 
 	if (of_property_read_u32(nvec->dev->of_node, "slave-addr",
-				&nvec->i2c_addr)) {
+				 &nvec->i2c_addr)) {
 		dev_err(nvec->dev, "no i2c address specified");
 		return -ENODEV;
 	}
@@ -854,14 +855,14 @@ static int tegra_nvec_probe(struct platform_device *pdev)
 	INIT_WORK(&nvec->tx_work, nvec_request_master);
 
 	err = devm_gpio_request_one(&pdev->dev, nvec->gpio, GPIOF_OUT_INIT_HIGH,
-					"nvec gpio");
+				    "nvec gpio");
 	if (err < 0) {
 		dev_err(nvec->dev, "couldn't request gpio\n");
 		return -ENODEV;
 	}
 
 	err = devm_request_irq(&pdev->dev, nvec->irq, nvec_interrupt, 0,
-				"nvec", nvec);
+			       "nvec", nvec);
 	if (err) {
 		dev_err(nvec->dev, "couldn't request irq\n");
 		return -ENODEV;
@@ -883,8 +884,10 @@ static int tegra_nvec_probe(struct platform_device *pdev)
 	err = nvec_write_sync(nvec, get_firmware_version, 2, &msg);
 
 	if (!err) {
-		dev_warn(nvec->dev, "ec firmware version %02x.%02x.%02x / %02x\n",
-			msg->data[4], msg->data[5], msg->data[6], msg->data[7]);
+		dev_warn(nvec->dev,
+			 "ec firmware version %02x.%02x.%02x / %02x\n",
+			 msg->data[4], msg->data[5],
+			 msg->data[6], msg->data[7]);
 
 		nvec_msg_free(nvec, msg);
 	}
diff --git a/drivers/staging/octeon-usb/TODO b/drivers/staging/octeon-usb/TODO
index cc58a7e..2b29acc 100644
--- a/drivers/staging/octeon-usb/TODO
+++ b/drivers/staging/octeon-usb/TODO
@@ -1,11 +1,8 @@
-This driver is functional and has been tested on EdgeRouter Lite with
-USB mass storage.
+This driver is functional and has been tested on EdgeRouter Lite,
+D-Link DSR-1000N and EBH5600 evaluation board with USB mass storage.
 
 TODO:
 	- kernel coding style
 	- checkpatch warnings
-	- dead code elimination
-	- device tree bindings
-	- possibly eliminate the extra "hardware abstraction layer"
 
 Contact: Aaro Koskinen <aaro.koskinen@iki.fi>
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index eaf6ded..17442b3 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -43,29 +43,15 @@
  * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
  * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
  */
-#include <linux/kernel.h>
+
+#include <linux/usb.h>
+#include <linux/slab.h>
 #include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
+#include <linux/usb/hcd.h>
 #include <linux/prefetch.h>
-#include <linux/interrupt.h>
 #include <linux/platform_device.h>
-#include <linux/usb.h>
-
-#include <linux/time.h>
-#include <linux/delay.h>
-
-#include <asm/octeon/cvmx.h>
-#include <asm/octeon/cvmx-iob-defs.h>
-
-#include <linux/usb/hcd.h>
-
-#include <linux/err.h>
 
 #include <asm/octeon/octeon.h>
-#include <asm/octeon/cvmx-helper.h>
-#include <asm/octeon/cvmx-sysinfo.h>
-#include <asm/octeon/cvmx-helper-board.h>
 
 #include "octeon-hcd.h"
 
@@ -113,35 +99,35 @@ enum cvmx_usb_direction {
 };
 
 /**
- * enum cvmx_usb_complete - possible callback function status codes
+ * enum cvmx_usb_status - possible callback function status codes
  *
- * @CVMX_USB_COMPLETE_SUCCESS:	  The transaction / operation finished without
+ * @CVMX_USB_STATUS_OK:		  The transaction / operation finished without
  *				  any errors
- * @CVMX_USB_COMPLETE_SHORT:	  FIXME: This is currently not implemented
- * @CVMX_USB_COMPLETE_CANCEL:	  The transaction was canceled while in flight
+ * @CVMX_USB_STATUS_SHORT:	  FIXME: This is currently not implemented
+ * @CVMX_USB_STATUS_CANCEL:	  The transaction was canceled while in flight
  *				  by a user call to cvmx_usb_cancel
- * @CVMX_USB_COMPLETE_ERROR:	  The transaction aborted with an unexpected
+ * @CVMX_USB_STATUS_ERROR:	  The transaction aborted with an unexpected
  *				  error status
- * @CVMX_USB_COMPLETE_STALL:	  The transaction received a USB STALL response
+ * @CVMX_USB_STATUS_STALL:	  The transaction received a USB STALL response
  *				  from the device
- * @CVMX_USB_COMPLETE_XACTERR:	  The transaction failed with an error from the
+ * @CVMX_USB_STATUS_XACTERR:	  The transaction failed with an error from the
  *				  device even after a number of retries
- * @CVMX_USB_COMPLETE_DATATGLERR: The transaction failed with a data toggle
+ * @CVMX_USB_STATUS_DATATGLERR:	  The transaction failed with a data toggle
  *				  error even after a number of retries
- * @CVMX_USB_COMPLETE_BABBLEERR:  The transaction failed with a babble error
- * @CVMX_USB_COMPLETE_FRAMEERR:	  The transaction failed with a frame error
+ * @CVMX_USB_STATUS_BABBLEERR:	  The transaction failed with a babble error
+ * @CVMX_USB_STATUS_FRAMEERR:	  The transaction failed with a frame error
  *				  even after a number of retries
  */
-enum cvmx_usb_complete {
-	CVMX_USB_COMPLETE_SUCCESS,
-	CVMX_USB_COMPLETE_SHORT,
-	CVMX_USB_COMPLETE_CANCEL,
-	CVMX_USB_COMPLETE_ERROR,
-	CVMX_USB_COMPLETE_STALL,
-	CVMX_USB_COMPLETE_XACTERR,
-	CVMX_USB_COMPLETE_DATATGLERR,
-	CVMX_USB_COMPLETE_BABBLEERR,
-	CVMX_USB_COMPLETE_FRAMEERR,
+enum cvmx_usb_status {
+	CVMX_USB_STATUS_OK,
+	CVMX_USB_STATUS_SHORT,
+	CVMX_USB_STATUS_CANCEL,
+	CVMX_USB_STATUS_ERROR,
+	CVMX_USB_STATUS_STALL,
+	CVMX_USB_STATUS_XACTERR,
+	CVMX_USB_STATUS_DATATGLERR,
+	CVMX_USB_STATUS_BABBLEERR,
+	CVMX_USB_STATUS_FRAMEERR,
 };
 
 /**
@@ -160,13 +146,13 @@ enum cvmx_usb_complete {
  *			status call.
  */
 struct cvmx_usb_port_status {
-	uint32_t reserved		: 25;
-	uint32_t port_enabled		: 1;
-	uint32_t port_over_current	: 1;
-	uint32_t port_powered		: 1;
+	u32 reserved			: 25;
+	u32 port_enabled		: 1;
+	u32 port_over_current		: 1;
+	u32 port_powered		: 1;
 	enum cvmx_usb_speed port_speed	: 2;
-	uint32_t connected		: 1;
-	uint32_t connect_change		: 1;
+	u32 connected			: 1;
+	u32 connect_change		: 1;
 };
 
 /**
@@ -180,7 +166,7 @@ struct cvmx_usb_port_status {
 struct cvmx_usb_iso_packet {
 	int offset;
 	int length;
-	enum cvmx_usb_complete status;
+	enum cvmx_usb_status status;
 };
 
 /**
@@ -234,13 +220,13 @@ enum cvmx_usb_pipe_flags {
  * The low level hardware can transfer a maximum of this number of bytes in each
  * transfer. The field is 19 bits wide
  */
-#define MAX_TRANSFER_BYTES	((1<<19)-1)
+#define MAX_TRANSFER_BYTES	((1 << 19) - 1)
 
 /*
  * The low level hardware can transfer a maximum of this number of packets in
  * each transfer. The field is 10 bits wide
  */
-#define MAX_TRANSFER_PACKETS	((1<<10)-1)
+#define MAX_TRANSFER_PACKETS	((1 << 10) - 1)
 
 /**
  * Logical transactions may take numerous low level
@@ -284,9 +270,9 @@ enum cvmx_usb_stage {
 struct cvmx_usb_transaction {
 	struct list_head node;
 	enum cvmx_usb_transfer type;
-	uint64_t buffer;
+	u64 buffer;
 	int buffer_length;
-	uint64_t control_header;
+	u64 control_header;
 	int iso_start_frame;
 	int iso_number_packets;
 	struct cvmx_usb_iso_packet *iso_packets;
@@ -328,36 +314,37 @@ struct cvmx_usb_transaction {
 struct cvmx_usb_pipe {
 	struct list_head node;
 	struct list_head transactions;
-	uint64_t interval;
-	uint64_t next_tx_frame;
+	u64 interval;
+	u64 next_tx_frame;
 	enum cvmx_usb_pipe_flags flags;
 	enum cvmx_usb_speed device_speed;
 	enum cvmx_usb_transfer transfer_type;
 	enum cvmx_usb_direction transfer_dir;
 	int multi_count;
-	uint16_t max_packet;
-	uint8_t device_addr;
-	uint8_t endpoint_num;
-	uint8_t hub_device_addr;
-	uint8_t hub_port;
-	uint8_t pid_toggle;
-	uint8_t channel;
-	int8_t split_sc_frame;
+	u16 max_packet;
+	u8 device_addr;
+	u8 endpoint_num;
+	u8 hub_device_addr;
+	u8 hub_port;
+	u8 pid_toggle;
+	u8 channel;
+	s8 split_sc_frame;
 };
 
 struct cvmx_usb_tx_fifo {
 	struct {
 		int channel;
 		int size;
-		uint64_t address;
-	} entry[MAX_CHANNELS+1];
+		u64 address;
+	} entry[MAX_CHANNELS + 1];
 	int head;
 	int tail;
 };
 
 /**
- * struct cvmx_usb_state - the state of the USB block
+ * struct octeon_hcd - the state of the USB block
  *
+ * lock:		   Serialization lock.
  * init_flags:		   Flags passed to initialize.
  * index:		   Which USB block this is for.
  * idle_hardware_channels: Bit set for every idle hardware channel.
@@ -372,7 +359,8 @@ struct cvmx_usb_tx_fifo {
  * frame_number:	   Increments every SOF interrupt for time keeping.
  * active_split:	   Points to the current active split, or NULL.
  */
-struct cvmx_usb_state {
+struct octeon_hcd {
+	spinlock_t lock; /* serialization lock */
 	int init_flags;
 	int index;
 	int idle_hardware_channels;
@@ -382,23 +370,18 @@ struct cvmx_usb_state {
 	struct cvmx_usb_port_status port_status;
 	struct list_head idle_pipes;
 	struct list_head active_pipes[4];
-	uint64_t frame_number;
+	u64 frame_number;
 	struct cvmx_usb_transaction *active_split;
 	struct cvmx_usb_tx_fifo periodic;
 	struct cvmx_usb_tx_fifo nonperiodic;
 };
 
-struct octeon_hcd {
-	spinlock_t lock;
-	struct cvmx_usb_state usb;
-};
-
 /* This macro spins on a register waiting for it to reach a condition. */
 #define CVMX_WAIT_FOR_FIELD32(address, _union, cond, timeout_usec)	    \
 	({int result;							    \
 	do {								    \
-		uint64_t done = cvmx_get_cycle() + (uint64_t)timeout_usec * \
-			octeon_get_clock_rate() / 1000000;		    \
+		u64 done = cvmx_get_cycle() + (u64)timeout_usec *	    \
+			   octeon_get_clock_rate() / 1000000;		    \
 		union _union c;						    \
 									    \
 		while (1) {						    \
@@ -431,7 +414,7 @@ struct octeon_hcd {
 
 /* Returns the IO address to push/pop stuff data from the FIFOs */
 #define USB_FIFO_ADDRESS(channel, usb_index) \
-	(CVMX_USBCX_GOTGCTL(usb_index) + ((channel)+1)*0x1000)
+	(CVMX_USBCX_GOTGCTL(usb_index) + ((channel) + 1) * 0x1000)
 
 /**
  * struct octeon_temp_buffer - a bounce buffer for USB transfers
@@ -447,11 +430,6 @@ struct octeon_temp_buffer {
 	u8 data[0];
 };
 
-static inline struct octeon_hcd *cvmx_usb_to_octeon(struct cvmx_usb_state *p)
-{
-	return container_of(p, struct octeon_hcd, usb);
-}
-
 static inline struct usb_hcd *octeon_to_hcd(struct octeon_hcd *p)
 {
 	return container_of((void *)p, struct usb_hcd, hcd_priv);
@@ -562,14 +540,12 @@ static void octeon_unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb)
  *
  * Returns: Result of the read
  */
-static inline uint32_t cvmx_usb_read_csr32(struct cvmx_usb_state *usb,
-					   uint64_t address)
+static inline u32 cvmx_usb_read_csr32(struct octeon_hcd *usb, u64 address)
 {
-	uint32_t result = cvmx_read64_uint32(address ^ 4);
+	u32 result = cvmx_read64_uint32(address ^ 4);
 	return result;
 }
 
-
 /**
  * Write a USB 32bit CSR. It performs the necessary address
  * swizzle for 32bit CSRs and logs the value in a readable format
@@ -579,8 +555,8 @@ static inline uint32_t cvmx_usb_read_csr32(struct cvmx_usb_state *usb,
  * @address: 64bit address to write
  * @value:   Value to write
  */
-static inline void cvmx_usb_write_csr32(struct cvmx_usb_state *usb,
-					uint64_t address, uint32_t value)
+static inline void cvmx_usb_write_csr32(struct octeon_hcd *usb,
+					u64 address, u32 value)
 {
 	cvmx_write64_uint32(address ^ 4, value);
 	cvmx_read64_uint64(CVMX_USBNX_DMA0_INB_CHN0(usb->index));
@@ -595,14 +571,13 @@ static inline void cvmx_usb_write_csr32(struct cvmx_usb_state *usb,
  *
  * Returns: Non zero if we need to do split transactions
  */
-static inline int cvmx_usb_pipe_needs_split(struct cvmx_usb_state *usb,
+static inline int cvmx_usb_pipe_needs_split(struct octeon_hcd *usb,
 					    struct cvmx_usb_pipe *pipe)
 {
 	return pipe->device_speed != CVMX_USB_SPEED_HIGH &&
 	       usb->usbcx_hprt.s.prtspd == CVMX_USB_SPEED_HIGH;
 }
 
-
 /**
  * Trivial utility function to return the correct PID for a pipe
  *
@@ -617,7 +592,7 @@ static inline int cvmx_usb_get_data_pid(struct cvmx_usb_pipe *pipe)
 	return 0; /* Data0 */
 }
 
-static void cvmx_fifo_setup(struct cvmx_usb_state *usb)
+static void cvmx_fifo_setup(struct octeon_hcd *usb)
 {
 	union cvmx_usbcx_ghwcfg3 usbcx_ghwcfg3;
 	union cvmx_usbcx_gnptxfsiz npsiz;
@@ -675,7 +650,7 @@ static void cvmx_fifo_setup(struct cvmx_usb_state *usb)
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_shutdown(struct cvmx_usb_state *usb)
+static int cvmx_usb_shutdown(struct octeon_hcd *usb)
 {
 	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
 
@@ -704,12 +679,12 @@ static int cvmx_usb_shutdown(struct cvmx_usb_state *usb)
  * off in the disabled state.
  *
  * @dev:	 Pointer to struct device for logging purposes.
- * @usb:	 Pointer to struct cvmx_usb_state.
+ * @usb:	 Pointer to struct octeon_hcd.
  *
  * Returns: 0 or a negative error code.
  */
 static int cvmx_usb_initialize(struct device *dev,
-			       struct cvmx_usb_state *usb)
+			       struct octeon_hcd *usb)
 {
 	int channel;
 	int divisor;
@@ -975,7 +950,7 @@ retry:
  *
  * @usb: USB device state populated by cvmx_usb_initialize().
  */
-static void cvmx_usb_reset_port(struct cvmx_usb_state *usb)
+static void cvmx_usb_reset_port(struct octeon_hcd *usb)
 {
 	usb->usbcx_hprt.u32 = cvmx_usb_read_csr32(usb,
 						  CVMX_USBCX_HPRT(usb->index));
@@ -1002,7 +977,6 @@ static void cvmx_usb_reset_port(struct cvmx_usb_state *usb)
 						  CVMX_USBCX_HPRT(usb->index));
 }
 
-
 /**
  * Disable a USB port. After this call the USB port will not
  * generate data transfers and will not generate events.
@@ -1013,7 +987,7 @@ static void cvmx_usb_reset_port(struct cvmx_usb_state *usb)
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_disable(struct cvmx_usb_state *usb)
+static int cvmx_usb_disable(struct octeon_hcd *usb)
 {
 	/* Disable the port */
 	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), cvmx_usbcx_hprt,
@@ -1021,7 +995,6 @@ static int cvmx_usb_disable(struct cvmx_usb_state *usb)
 	return 0;
 }
 
-
 /**
  * Get the current state of the USB port. Use this call to
  * determine if the usb port has anything connected, is enabled,
@@ -1033,8 +1006,7 @@ static int cvmx_usb_disable(struct cvmx_usb_state *usb)
  *
  * Returns: Port status information
  */
-static struct cvmx_usb_port_status cvmx_usb_get_status(
-		struct cvmx_usb_state *usb)
+static struct cvmx_usb_port_status cvmx_usb_get_status(struct octeon_hcd *usb)
 {
 	union cvmx_usbcx_hprt usbc_hprt;
 	struct cvmx_usb_port_status result;
@@ -1105,7 +1077,7 @@ static struct cvmx_usb_port_status cvmx_usb_get_status(
  *
  * Returns: A non-NULL value is a pipe. NULL means an error.
  */
-static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
+static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct octeon_hcd *usb,
 						int device_addr,
 						int endpoint_num,
 						enum cvmx_usb_speed
@@ -1125,8 +1097,8 @@ static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
 	if (!pipe)
 		return NULL;
 	if ((device_speed == CVMX_USB_SPEED_HIGH) &&
-		(transfer_dir == CVMX_USB_DIRECTION_OUT) &&
-		(transfer_type == CVMX_USB_TRANSFER_BULK))
+	    (transfer_dir == CVMX_USB_DIRECTION_OUT) &&
+	    (transfer_type == CVMX_USB_TRANSFER_BULK))
 		pipe->flags |= CVMX_USB_PIPE_FLAGS_NEED_PING;
 	pipe->device_addr = device_addr;
 	pipe->endpoint_num = endpoint_num;
@@ -1143,9 +1115,9 @@ static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
 	if (!interval)
 		interval = 1;
 	if (cvmx_usb_pipe_needs_split(usb, pipe)) {
-		pipe->interval = interval*8;
+		pipe->interval = interval * 8;
 		/* Force start splits to be schedule on uFrame 0 */
-		pipe->next_tx_frame = ((usb->frame_number+7)&~7) +
+		pipe->next_tx_frame = ((usb->frame_number + 7) & ~7) +
 					pipe->interval;
 	} else {
 		pipe->interval = interval;
@@ -1166,7 +1138,6 @@ static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
 	return pipe;
 }
 
-
 /**
  * Poll the RX FIFOs and remove data as needed. This function is only used
  * in non DMA mode. It is very important that this function be called quickly
@@ -1174,13 +1145,13 @@ static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
  *
  * @usb:	USB device state populated by cvmx_usb_initialize().
  */
-static void cvmx_usb_poll_rx_fifo(struct cvmx_usb_state *usb)
+static void cvmx_usb_poll_rx_fifo(struct octeon_hcd *usb)
 {
 	union cvmx_usbcx_grxstsph rx_status;
 	int channel;
 	int bytes;
-	uint64_t address;
-	uint32_t *ptr;
+	u64 address;
+	u32 *ptr;
 
 	rx_status.u32 = cvmx_usb_read_csr32(usb,
 					    CVMX_USBCX_GRXSTSPH(usb->index));
@@ -1213,7 +1184,6 @@ static void cvmx_usb_poll_rx_fifo(struct cvmx_usb_state *usb)
 	CVMX_SYNCW;
 }
 
-
 /**
  * Fill the TX hardware fifo with data out of the software
  * fifos
@@ -1225,7 +1195,7 @@ static void cvmx_usb_poll_rx_fifo(struct cvmx_usb_state *usb)
  * Returns: Non zero if the hardware fifo was too small and needs
  *	    to be serviced again.
  */
-static int cvmx_usb_fill_tx_hw(struct cvmx_usb_state *usb,
+static int cvmx_usb_fill_tx_hw(struct octeon_hcd *usb,
 			       struct cvmx_usb_tx_fifo *fifo, int available)
 {
 	/*
@@ -1234,9 +1204,9 @@ static int cvmx_usb_fill_tx_hw(struct cvmx_usb_state *usb,
 	 */
 	while (available && (fifo->head != fifo->tail)) {
 		int i = fifo->tail;
-		const uint32_t *ptr = cvmx_phys_to_ptr(fifo->entry[i].address);
-		uint64_t csr_address = USB_FIFO_ADDRESS(fifo->entry[i].channel,
-							usb->index) ^ 4;
+		const u32 *ptr = cvmx_phys_to_ptr(fifo->entry[i].address);
+		u64 csr_address = USB_FIFO_ADDRESS(fifo->entry[i].channel,
+						   usb->index) ^ 4;
 		int words = available;
 
 		/* Limit the amount of data to what the SW fifo has */
@@ -1275,13 +1245,12 @@ static int cvmx_usb_fill_tx_hw(struct cvmx_usb_state *usb,
 	return fifo->head != fifo->tail;
 }
 
-
 /**
  * Check the hardware FIFOs and fill them as needed
  *
  * @usb:	USB device state populated by cvmx_usb_initialize().
  */
-static void cvmx_usb_poll_tx_fifo(struct cvmx_usb_state *usb)
+static void cvmx_usb_poll_tx_fifo(struct octeon_hcd *usb)
 {
 	if (usb->periodic.head != usb->periodic.tail) {
 		union cvmx_usbcx_hptxsts tx_status;
@@ -1312,14 +1281,13 @@ static void cvmx_usb_poll_tx_fifo(struct cvmx_usb_state *usb)
 	}
 }
 
-
 /**
  * Fill the TX FIFO with an outgoing packet
  *
  * @usb:	  USB device state populated by cvmx_usb_initialize().
  * @channel:	  Channel number to get packet from
  */
-static void cvmx_usb_fill_tx_fifo(struct cvmx_usb_state *usb, int channel)
+static void cvmx_usb_fill_tx_fifo(struct octeon_hcd *usb, int channel)
 {
 	union cvmx_usbcx_hccharx hcchar;
 	union cvmx_usbcx_hcspltx usbc_hcsplt;
@@ -1348,7 +1316,7 @@ static void cvmx_usb_fill_tx_fifo(struct cvmx_usb_state *usb, int channel)
 		return;
 
 	if ((hcchar.s.eptype == CVMX_USB_TRANSFER_INTERRUPT) ||
-		(hcchar.s.eptype == CVMX_USB_TRANSFER_ISOCHRONOUS))
+	    (hcchar.s.eptype == CVMX_USB_TRANSFER_ISOCHRONOUS))
 		fifo = &usb->periodic;
 	else
 		fifo = &usb->nonperiodic;
@@ -1357,7 +1325,7 @@ static void cvmx_usb_fill_tx_fifo(struct cvmx_usb_state *usb, int channel)
 	fifo->entry[fifo->head].address =
 		cvmx_read64_uint64(CVMX_USBNX_DMA0_OUTB_CHN0(usb->index) +
 				   channel * 8);
-	fifo->entry[fifo->head].size = (usbc_hctsiz.s.xfersize+3)>>2;
+	fifo->entry[fifo->head].size = (usbc_hctsiz.s.xfersize + 3) >> 2;
 	fifo->head++;
 	if (fifo->head > MAX_CHANNELS)
 		fifo->head = 0;
@@ -1373,12 +1341,11 @@ static void cvmx_usb_fill_tx_fifo(struct cvmx_usb_state *usb, int channel)
  * @channel:	  Channel to setup
  * @pipe:	  Pipe for control transaction
  */
-static void cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
+static void cvmx_usb_start_channel_control(struct octeon_hcd *usb,
 					   int channel,
 					   struct cvmx_usb_pipe *pipe)
 {
-	struct octeon_hcd *priv = cvmx_usb_to_octeon(usb);
-	struct usb_hcd *hcd = octeon_to_hcd(priv);
+	struct usb_hcd *hcd = octeon_to_hcd(usb);
 	struct device *dev = hcd->self.controller;
 	struct cvmx_usb_transaction *transaction =
 		list_first_entry(&pipe->transactions, typeof(*transaction),
@@ -1488,9 +1455,9 @@ static void cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
 	 */
 	packets_to_transfer = DIV_ROUND_UP(bytes_to_transfer,
 					   pipe->max_packet);
-	if (packets_to_transfer == 0)
+	if (packets_to_transfer == 0) {
 		packets_to_transfer = 1;
-	else if ((packets_to_transfer > 1) &&
+	} else if ((packets_to_transfer > 1) &&
 			(usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)) {
 		/*
 		 * Limit to one packet when not using DMA. Channels must be
@@ -1515,7 +1482,6 @@ static void cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
 			     usbc_hctsiz.u32);
 }
 
-
 /**
  * Start a channel to perform the pipe's head transaction
  *
@@ -1523,7 +1489,7 @@ static void cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
  * @channel:	  Channel to setup
  * @pipe:	  Pipe to start
  */
-static void cvmx_usb_start_channel(struct cvmx_usb_state *usb, int channel,
+static void cvmx_usb_start_channel(struct octeon_hcd *usb, int channel,
 				   struct cvmx_usb_pipe *pipe)
 {
 	struct cvmx_usb_transaction *transaction =
@@ -1539,7 +1505,7 @@ static void cvmx_usb_start_channel(struct cvmx_usb_state *usb, int channel,
 	pipe->flags |= CVMX_USB_PIPE_FLAGS_SCHEDULED;
 
 	/* Mark this channel as in use */
-	usb->idle_hardware_channels &= ~(1<<channel);
+	usb->idle_hardware_channels &= ~(1 << channel);
 
 	/* Enable the channel interrupt bits */
 	{
@@ -1579,22 +1545,22 @@ static void cvmx_usb_start_channel(struct cvmx_usb_state *usb, int channel,
 			usbc_hcintmsk.s.xfercomplmsk = 1;
 		}
 		cvmx_usb_write_csr32(usb,
-				CVMX_USBCX_HCINTMSKX(channel, usb->index),
-				usbc_hcintmsk.u32);
+				     CVMX_USBCX_HCINTMSKX(channel, usb->index),
+				     usbc_hcintmsk.u32);
 
 		/* Enable the channel interrupt to propagate */
 		usbc_haintmsk.u32 = cvmx_usb_read_csr32(usb,
 					CVMX_USBCX_HAINTMSK(usb->index));
-		usbc_haintmsk.s.haintmsk |= 1<<channel;
+		usbc_haintmsk.s.haintmsk |= 1 << channel;
 		cvmx_usb_write_csr32(usb, CVMX_USBCX_HAINTMSK(usb->index),
 				     usbc_haintmsk.u32);
 	}
 
 	/* Setup the location the DMA engine uses. */
 	{
-		uint64_t reg;
-		uint64_t dma_address = transaction->buffer +
-					transaction->actual_bytes;
+		u64 reg;
+		u64 dma_address = transaction->buffer +
+				  transaction->actual_bytes;
 
 		if (transaction->type == CVMX_USB_TRANSFER_ISOCHRONOUS)
 			dma_address = transaction->buffer +
@@ -1636,15 +1602,16 @@ static void cvmx_usb_start_channel(struct cvmx_usb_state *usb, int channel,
 			 * We only store the lower two bits since the time ahead
 			 * can only be two frames
 			 */
-			if ((transaction->stage&1) == 0) {
+			if ((transaction->stage & 1) == 0) {
 				if (transaction->type == CVMX_USB_TRANSFER_BULK)
 					pipe->split_sc_frame =
 						(usb->frame_number + 1) & 0x7f;
 				else
 					pipe->split_sc_frame =
 						(usb->frame_number + 2) & 0x7f;
-			} else
+			} else {
 				pipe->split_sc_frame = -1;
+			}
 
 			usbc_hcsplt.s.spltena = 1;
 			usbc_hcsplt.s.hubaddr = pipe->hub_device_addr;
@@ -1666,10 +1633,9 @@ static void cvmx_usb_start_channel(struct cvmx_usb_state *usb, int channel,
 			 * begin/middle/end of the data or all
 			 */
 			if (!usbc_hcsplt.s.compsplt &&
-				(pipe->transfer_dir ==
-				 CVMX_USB_DIRECTION_OUT) &&
-				(pipe->transfer_type ==
-				 CVMX_USB_TRANSFER_ISOCHRONOUS)) {
+			    (pipe->transfer_dir == CVMX_USB_DIRECTION_OUT) &&
+			    (pipe->transfer_type ==
+			     CVMX_USB_TRANSFER_ISOCHRONOUS)) {
 				/*
 				 * Clear the split complete frame number as
 				 * there isn't going to be a split complete
@@ -1732,11 +1698,11 @@ static void cvmx_usb_start_channel(struct cvmx_usb_state *usb, int channel,
 		 */
 		packets_to_transfer =
 			DIV_ROUND_UP(bytes_to_transfer, pipe->max_packet);
-		if (packets_to_transfer == 0)
+		if (packets_to_transfer == 0) {
 			packets_to_transfer = 1;
-		else if ((packets_to_transfer > 1) &&
-				(usb->init_flags &
-				 CVMX_USB_INITIALIZE_FLAGS_NO_DMA)) {
+		} else if ((packets_to_transfer > 1) &&
+			   (usb->init_flags &
+			    CVMX_USB_INITIALIZE_FLAGS_NO_DMA)) {
 			/*
 			 * Limit to one packet when not using DMA. Channels must
 			 * be restarted between every packet for IN
@@ -1783,7 +1749,7 @@ static void cvmx_usb_start_channel(struct cvmx_usb_state *usb, int channel,
 		 * Set the startframe odd/even properly. This is only used for
 		 * periodic
 		 */
-		usbc_hcchar.s.oddfrm = usb->frame_number&1;
+		usbc_hcchar.s.oddfrm = usb->frame_number & 1;
 
 		/*
 		 * Set the number of back to back packets allowed by this
@@ -1843,9 +1809,11 @@ static void cvmx_usb_start_channel(struct cvmx_usb_state *usb, int channel,
 		break;
 	}
 	{
-		union cvmx_usbcx_hctsizx usbc_hctsiz = {.u32 =
+		union cvmx_usbcx_hctsizx usbc_hctsiz = { .u32 =
 			cvmx_usb_read_csr32(usb,
-				CVMX_USBCX_HCTSIZX(channel, usb->index))};
+					    CVMX_USBCX_HCTSIZX(channel,
+							       usb->index))
+		};
 		transaction->xfersize = usbc_hctsiz.s.xfersize;
 		transaction->pktcnt = usbc_hctsiz.s.pktcnt;
 	}
@@ -1858,21 +1826,19 @@ static void cvmx_usb_start_channel(struct cvmx_usb_state *usb, int channel,
 		cvmx_usb_fill_tx_fifo(usb, channel);
 }
 
-
 /**
  * Find a pipe that is ready to be scheduled to hardware.
  * @usb:	 USB device state populated by cvmx_usb_initialize().
- * @list:	 Pipe list to search
- * @current_frame:
- *		 Frame counter to use as a time reference.
+ * @xfer_type:	 Transfer type
  *
  * Returns: Pipe or NULL if none are ready
  */
 static struct cvmx_usb_pipe *cvmx_usb_find_ready_pipe(
-		struct cvmx_usb_state *usb,
-		struct list_head *list,
-		uint64_t current_frame)
+		struct octeon_hcd *usb,
+		enum cvmx_usb_transfer xfer_type)
 {
+	struct list_head *list = usb->active_pipes + xfer_type;
+	u64 current_frame = usb->frame_number;
 	struct cvmx_usb_pipe *pipe;
 
 	list_for_each_entry(pipe, list, node) {
@@ -1880,11 +1846,11 @@ static struct cvmx_usb_pipe *cvmx_usb_find_ready_pipe(
 			list_first_entry(&pipe->transactions, typeof(*t),
 					 node);
 		if (!(pipe->flags & CVMX_USB_PIPE_FLAGS_SCHEDULED) && t &&
-			(pipe->next_tx_frame <= current_frame) &&
-			((pipe->split_sc_frame == -1) ||
-			 ((((int)current_frame - (int)pipe->split_sc_frame)
-			   & 0x7f) < 0x40)) &&
-			(!usb->active_split || (usb->active_split == t))) {
+		    (pipe->next_tx_frame <= current_frame) &&
+		    ((pipe->split_sc_frame == -1) ||
+		     ((((int)current_frame - pipe->split_sc_frame) & 0x7f) <
+		      0x40)) &&
+		    (!usb->active_split || (usb->active_split == t))) {
 			prefetch(t);
 			return pipe;
 		}
@@ -1892,6 +1858,32 @@ static struct cvmx_usb_pipe *cvmx_usb_find_ready_pipe(
 	return NULL;
 }
 
+static struct cvmx_usb_pipe *cvmx_usb_next_pipe(struct octeon_hcd *usb,
+						int is_sof)
+{
+	struct cvmx_usb_pipe *pipe;
+
+	/* Find a pipe needing service. */
+	if (is_sof) {
+		/*
+		 * Only process periodic pipes on SOF interrupts. This way we
+		 * are sure that the periodic data is sent in the beginning of
+		 * the frame.
+		 */
+		pipe = cvmx_usb_find_ready_pipe(usb,
+						CVMX_USB_TRANSFER_ISOCHRONOUS);
+		if (pipe)
+			return pipe;
+		pipe = cvmx_usb_find_ready_pipe(usb,
+						CVMX_USB_TRANSFER_INTERRUPT);
+		if (pipe)
+			return pipe;
+	}
+	pipe = cvmx_usb_find_ready_pipe(usb, CVMX_USB_TRANSFER_CONTROL);
+	if (pipe)
+		return pipe;
+	return cvmx_usb_find_ready_pipe(usb, CVMX_USB_TRANSFER_BULK);
+}
 
 /**
  * Called whenever a pipe might need to be scheduled to the
@@ -1900,7 +1892,7 @@ static struct cvmx_usb_pipe *cvmx_usb_find_ready_pipe(
  * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @is_sof:	 True if this schedule was called on a SOF interrupt.
  */
-static void cvmx_usb_schedule(struct cvmx_usb_state *usb, int is_sof)
+static void cvmx_usb_schedule(struct octeon_hcd *usb, int is_sof)
 {
 	int channel;
 	struct cvmx_usb_pipe *pipe;
@@ -1922,7 +1914,7 @@ static void cvmx_usb_schedule(struct cvmx_usb_state *usb, int is_sof)
 						CVMX_USBCX_HFIR(usb->index))
 		};
 
-		if (hfnum.s.frrem < hfir.s.frint/4)
+		if (hfnum.s.frrem < hfir.s.frint / 4)
 			goto done;
 	}
 
@@ -1932,35 +1924,7 @@ static void cvmx_usb_schedule(struct cvmx_usb_state *usb, int is_sof)
 		if (unlikely(channel > 7))
 			break;
 
-		/* Find a pipe needing service */
-		pipe = NULL;
-		if (is_sof) {
-			/*
-			 * Only process periodic pipes on SOF interrupts. This
-			 * way we are sure that the periodic data is sent in the
-			 * beginning of the frame
-			 */
-			pipe = cvmx_usb_find_ready_pipe(usb,
-					usb->active_pipes +
-					CVMX_USB_TRANSFER_ISOCHRONOUS,
-					usb->frame_number);
-			if (likely(!pipe))
-				pipe = cvmx_usb_find_ready_pipe(usb,
-						usb->active_pipes +
-						CVMX_USB_TRANSFER_INTERRUPT,
-						usb->frame_number);
-		}
-		if (likely(!pipe)) {
-			pipe = cvmx_usb_find_ready_pipe(usb,
-					usb->active_pipes +
-					CVMX_USB_TRANSFER_CONTROL,
-					usb->frame_number);
-			if (likely(!pipe))
-				pipe = cvmx_usb_find_ready_pipe(usb,
-						usb->active_pipes +
-						CVMX_USB_TRANSFER_BULK,
-						usb->frame_number);
-		}
+		pipe = cvmx_usb_next_pipe(usb, is_sof);
 		if (!pipe)
 			break;
 
@@ -1974,7 +1938,7 @@ done:
 	 */
 	need_sof = 0;
 	for (ttype = CVMX_USB_TRANSFER_CONTROL;
-			ttype <= CVMX_USB_TRANSFER_INTERRUPT; ttype++) {
+	     ttype <= CVMX_USB_TRANSFER_INTERRUPT; ttype++) {
 		list_for_each_entry(pipe, &usb->active_pipes[ttype], node) {
 			if (pipe->next_tx_frame > usb->frame_number) {
 				need_sof = 1;
@@ -1986,19 +1950,18 @@ done:
 			cvmx_usbcx_gintmsk, sofmsk, need_sof);
 }
 
-static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
-					     enum cvmx_usb_complete status,
+static void octeon_usb_urb_complete_callback(struct octeon_hcd *usb,
+					     enum cvmx_usb_status status,
 					     struct cvmx_usb_pipe *pipe,
 					     struct cvmx_usb_transaction
 						*transaction,
 					     int bytes_transferred,
 					     struct urb *urb)
 {
-	struct octeon_hcd *priv = cvmx_usb_to_octeon(usb);
-	struct usb_hcd *hcd = octeon_to_hcd(priv);
+	struct usb_hcd *hcd = octeon_to_hcd(usb);
 	struct device *dev = hcd->self.controller;
 
-	if (likely(status == CVMX_USB_COMPLETE_SUCCESS))
+	if (likely(status == CVMX_USB_STATUS_OK))
 		urb->actual_length = bytes_transferred;
 	else
 		urb->actual_length = 0;
@@ -2015,12 +1978,11 @@ static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
 		 * field.
 		 */
 		struct cvmx_usb_iso_packet *iso_packet =
-			(struct cvmx_usb_iso_packet *) urb->setup_packet;
+			(struct cvmx_usb_iso_packet *)urb->setup_packet;
 		/* Recalculate the transfer size by adding up each packet */
 		urb->actual_length = 0;
 		for (i = 0; i < urb->number_of_packets; i++) {
-			if (iso_packet[i].status ==
-					CVMX_USB_COMPLETE_SUCCESS) {
+			if (iso_packet[i].status == CVMX_USB_STATUS_OK) {
 				urb->iso_frame_desc[i].status = 0;
 				urb->iso_frame_desc[i].actual_length =
 					iso_packet[i].length;
@@ -2040,41 +2002,41 @@ static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
 	}
 
 	switch (status) {
-	case CVMX_USB_COMPLETE_SUCCESS:
+	case CVMX_USB_STATUS_OK:
 		urb->status = 0;
 		break;
-	case CVMX_USB_COMPLETE_CANCEL:
+	case CVMX_USB_STATUS_CANCEL:
 		if (urb->status == 0)
 			urb->status = -ENOENT;
 		break;
-	case CVMX_USB_COMPLETE_STALL:
+	case CVMX_USB_STATUS_STALL:
 		dev_dbg(dev, "status=stall pipe=%p transaction=%p size=%d\n",
 			pipe, transaction, bytes_transferred);
 		urb->status = -EPIPE;
 		break;
-	case CVMX_USB_COMPLETE_BABBLEERR:
+	case CVMX_USB_STATUS_BABBLEERR:
 		dev_dbg(dev, "status=babble pipe=%p transaction=%p size=%d\n",
 			pipe, transaction, bytes_transferred);
 		urb->status = -EPIPE;
 		break;
-	case CVMX_USB_COMPLETE_SHORT:
+	case CVMX_USB_STATUS_SHORT:
 		dev_dbg(dev, "status=short pipe=%p transaction=%p size=%d\n",
 			pipe, transaction, bytes_transferred);
 		urb->status = -EREMOTEIO;
 		break;
-	case CVMX_USB_COMPLETE_ERROR:
-	case CVMX_USB_COMPLETE_XACTERR:
-	case CVMX_USB_COMPLETE_DATATGLERR:
-	case CVMX_USB_COMPLETE_FRAMEERR:
+	case CVMX_USB_STATUS_ERROR:
+	case CVMX_USB_STATUS_XACTERR:
+	case CVMX_USB_STATUS_DATATGLERR:
+	case CVMX_USB_STATUS_FRAMEERR:
 		dev_dbg(dev, "status=%d pipe=%p transaction=%p size=%d\n",
 			status, pipe, transaction, bytes_transferred);
 		urb->status = -EPROTO;
 		break;
 	}
-	usb_hcd_unlink_urb_from_ep(octeon_to_hcd(priv), urb);
-	spin_unlock(&priv->lock);
-	usb_hcd_giveback_urb(octeon_to_hcd(priv), urb, urb->status);
-	spin_lock(&priv->lock);
+	usb_hcd_unlink_urb_from_ep(octeon_to_hcd(usb), urb);
+	spin_unlock(&usb->lock);
+	usb_hcd_giveback_urb(octeon_to_hcd(usb), urb, urb->status);
+	spin_lock(&usb->lock);
 }
 
 /**
@@ -2088,10 +2050,10 @@ static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
  * @complete_code:
  *		 Completion code
  */
-static void cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
-				      struct cvmx_usb_pipe *pipe,
-				      struct cvmx_usb_transaction *transaction,
-				      enum cvmx_usb_complete complete_code)
+static void cvmx_usb_complete(struct octeon_hcd *usb,
+			      struct cvmx_usb_pipe *pipe,
+			      struct cvmx_usb_transaction *transaction,
+			      enum cvmx_usb_status complete_code)
 {
 	/* If this was a split then clear our split in progress marker */
 	if (usb->active_split == transaction)
@@ -2111,7 +2073,7 @@ static void cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 		 * next one
 		 */
 		if ((transaction->iso_number_packets > 1) &&
-			(complete_code == CVMX_USB_COMPLETE_SUCCESS)) {
+		    (complete_code == CVMX_USB_STATUS_OK)) {
 			/* No bytes transferred for this packet as of yet */
 			transaction->actual_bytes = 0;
 			/* One less ISO waiting to transfer */
@@ -2134,7 +2096,6 @@ static void cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 	kfree(transaction);
 }
 
-
 /**
  * Submit a usb transaction to a pipe. Called for all types
  * of transactions.
@@ -2158,12 +2119,12 @@ static void cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
  * Returns: Transaction or NULL on failure.
  */
 static struct cvmx_usb_transaction *cvmx_usb_submit_transaction(
-				struct cvmx_usb_state *usb,
+				struct octeon_hcd *usb,
 				struct cvmx_usb_pipe *pipe,
 				enum cvmx_usb_transfer type,
-				uint64_t buffer,
+				u64 buffer,
 				int buffer_length,
-				uint64_t control_header,
+				u64 control_header,
 				int iso_start_frame,
 				int iso_number_packets,
 				struct cvmx_usb_iso_packet *iso_packets,
@@ -2209,7 +2170,6 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_transaction(
 	return transaction;
 }
 
-
 /**
  * Call to submit a USB Bulk transfer to a pipe.
  *
@@ -2220,7 +2180,7 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_transaction(
  * Returns: A submitted transaction or NULL on failure.
  */
 static struct cvmx_usb_transaction *cvmx_usb_submit_bulk(
-						struct cvmx_usb_state *usb,
+						struct octeon_hcd *usb,
 						struct cvmx_usb_pipe *pipe,
 						struct urb *urb)
 {
@@ -2234,7 +2194,6 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_bulk(
 					   urb);
 }
 
-
 /**
  * Call to submit a USB Interrupt transfer to a pipe.
  *
@@ -2245,7 +2204,7 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_bulk(
  * Returns: A submitted transaction or NULL on failure.
  */
 static struct cvmx_usb_transaction *cvmx_usb_submit_interrupt(
-						struct cvmx_usb_state *usb,
+						struct octeon_hcd *usb,
 						struct cvmx_usb_pipe *pipe,
 						struct urb *urb)
 {
@@ -2260,7 +2219,6 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_interrupt(
 					   urb);
 }
 
-
 /**
  * Call to submit a USB Control transfer to a pipe.
  *
@@ -2271,12 +2229,12 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_interrupt(
  * Returns: A submitted transaction or NULL on failure.
  */
 static struct cvmx_usb_transaction *cvmx_usb_submit_control(
-						struct cvmx_usb_state *usb,
+						struct octeon_hcd *usb,
 						struct cvmx_usb_pipe *pipe,
 						struct urb *urb)
 {
 	int buffer_length = urb->transfer_buffer_length;
-	uint64_t control_header = urb->setup_dma;
+	u64 control_header = urb->setup_dma;
 	struct usb_ctrlrequest *header = cvmx_phys_to_ptr(control_header);
 
 	if ((header->bRequestType & USB_DIR_IN) == 0)
@@ -2292,7 +2250,6 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_control(
 					   urb);
 }
 
-
 /**
  * Call to submit a USB Isochronous transfer to a pipe.
  *
@@ -2303,13 +2260,13 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_control(
  * Returns: A submitted transaction or NULL on failure.
  */
 static struct cvmx_usb_transaction *cvmx_usb_submit_isochronous(
-						struct cvmx_usb_state *usb,
+						struct octeon_hcd *usb,
 						struct cvmx_usb_pipe *pipe,
 						struct urb *urb)
 {
 	struct cvmx_usb_iso_packet *packets;
 
-	packets = (struct cvmx_usb_iso_packet *) urb->setup_packet;
+	packets = (struct cvmx_usb_iso_packet *)urb->setup_packet;
 	return cvmx_usb_submit_transaction(usb, pipe,
 					   CVMX_USB_TRANSFER_ISOCHRONOUS,
 					   urb->transfer_dma,
@@ -2320,7 +2277,6 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_isochronous(
 					   packets, urb);
 }
 
-
 /**
  * Cancel one outstanding request in a pipe. Canceling a request
  * can fail if the transaction has already completed before cancel
@@ -2334,7 +2290,7 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_isochronous(
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_cancel(struct cvmx_usb_state *usb,
+static int cvmx_usb_cancel(struct octeon_hcd *usb,
 			   struct cvmx_usb_pipe *pipe,
 			   struct cvmx_usb_transaction *transaction)
 {
@@ -2360,17 +2316,15 @@ static int cvmx_usb_cancel(struct cvmx_usb_state *usb,
 		if (usbc_hcchar.s.chena) {
 			usbc_hcchar.s.chdis = 1;
 			cvmx_usb_write_csr32(usb,
-					CVMX_USBCX_HCCHARX(pipe->channel,
-						usb->index),
-					usbc_hcchar.u32);
+					     CVMX_USBCX_HCCHARX(pipe->channel,
+								usb->index),
+					     usbc_hcchar.u32);
 		}
 	}
-	cvmx_usb_perform_complete(usb, pipe, transaction,
-				  CVMX_USB_COMPLETE_CANCEL);
+	cvmx_usb_complete(usb, pipe, transaction, CVMX_USB_STATUS_CANCEL);
 	return 0;
 }
 
-
 /**
  * Cancel all outstanding requests in a pipe. Logically all this
  * does is call cvmx_usb_cancel() in a loop.
@@ -2380,7 +2334,7 @@ static int cvmx_usb_cancel(struct cvmx_usb_state *usb,
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_cancel_all(struct cvmx_usb_state *usb,
+static int cvmx_usb_cancel_all(struct octeon_hcd *usb,
 			       struct cvmx_usb_pipe *pipe)
 {
 	struct cvmx_usb_transaction *transaction, *next;
@@ -2395,7 +2349,6 @@ static int cvmx_usb_cancel_all(struct cvmx_usb_state *usb,
 	return 0;
 }
 
-
 /**
  * Close a pipe created with cvmx_usb_open_pipe().
  *
@@ -2405,7 +2358,7 @@ static int cvmx_usb_cancel_all(struct cvmx_usb_state *usb,
  * Returns: 0 or a negative error code. EBUSY is returned if the pipe has
  *	    outstanding transfers.
  */
-static int cvmx_usb_close_pipe(struct cvmx_usb_state *usb,
+static int cvmx_usb_close_pipe(struct octeon_hcd *usb,
 			       struct cvmx_usb_pipe *pipe)
 {
 	/* Fail if the pipe has pending transactions */
@@ -2426,7 +2379,7 @@ static int cvmx_usb_close_pipe(struct cvmx_usb_state *usb,
  *
  * Returns: USB frame number
  */
-static int cvmx_usb_get_frame_number(struct cvmx_usb_state *usb)
+static int cvmx_usb_get_frame_number(struct octeon_hcd *usb)
 {
 	int frame_number;
 	union cvmx_usbcx_hfnum usbc_hfnum;
@@ -2437,6 +2390,197 @@ static int cvmx_usb_get_frame_number(struct cvmx_usb_state *usb)
 	return frame_number;
 }
 
+static void cvmx_usb_transfer_control(struct octeon_hcd *usb,
+				      struct cvmx_usb_pipe *pipe,
+				      struct cvmx_usb_transaction *transaction,
+				      union cvmx_usbcx_hccharx usbc_hcchar,
+				      int buffer_space_left,
+				      int bytes_in_last_packet)
+{
+	switch (transaction->stage) {
+	case CVMX_USB_STAGE_NON_CONTROL:
+	case CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE:
+		/* This should be impossible */
+		cvmx_usb_complete(usb, pipe, transaction,
+				  CVMX_USB_STATUS_ERROR);
+		break;
+	case CVMX_USB_STAGE_SETUP:
+		pipe->pid_toggle = 1;
+		if (cvmx_usb_pipe_needs_split(usb, pipe)) {
+			transaction->stage =
+				CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE;
+		} else {
+			struct usb_ctrlrequest *header =
+				cvmx_phys_to_ptr(transaction->control_header);
+			if (header->wLength)
+				transaction->stage = CVMX_USB_STAGE_DATA;
+			else
+				transaction->stage = CVMX_USB_STAGE_STATUS;
+		}
+		break;
+	case CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE:
+		{
+			struct usb_ctrlrequest *header =
+				cvmx_phys_to_ptr(transaction->control_header);
+			if (header->wLength)
+				transaction->stage = CVMX_USB_STAGE_DATA;
+			else
+				transaction->stage = CVMX_USB_STAGE_STATUS;
+		}
+		break;
+	case CVMX_USB_STAGE_DATA:
+		if (cvmx_usb_pipe_needs_split(usb, pipe)) {
+			transaction->stage = CVMX_USB_STAGE_DATA_SPLIT_COMPLETE;
+			/*
+			 * For setup OUT data that are splits,
+			 * the hardware doesn't appear to count
+			 * transferred data. Here we manually
+			 * update the data transferred
+			 */
+			if (!usbc_hcchar.s.epdir) {
+				if (buffer_space_left < pipe->max_packet)
+					transaction->actual_bytes +=
+						buffer_space_left;
+				else
+					transaction->actual_bytes +=
+						pipe->max_packet;
+			}
+		} else if ((buffer_space_left == 0) ||
+			   (bytes_in_last_packet < pipe->max_packet)) {
+			pipe->pid_toggle = 1;
+			transaction->stage = CVMX_USB_STAGE_STATUS;
+		}
+		break;
+	case CVMX_USB_STAGE_DATA_SPLIT_COMPLETE:
+		if ((buffer_space_left == 0) ||
+		    (bytes_in_last_packet < pipe->max_packet)) {
+			pipe->pid_toggle = 1;
+			transaction->stage = CVMX_USB_STAGE_STATUS;
+		} else {
+			transaction->stage = CVMX_USB_STAGE_DATA;
+		}
+		break;
+	case CVMX_USB_STAGE_STATUS:
+		if (cvmx_usb_pipe_needs_split(usb, pipe))
+			transaction->stage =
+				CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE;
+		else
+			cvmx_usb_complete(usb, pipe, transaction,
+					  CVMX_USB_STATUS_OK);
+		break;
+	case CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE:
+		cvmx_usb_complete(usb, pipe, transaction, CVMX_USB_STATUS_OK);
+		break;
+	}
+}
+
+static void cvmx_usb_transfer_bulk(struct octeon_hcd *usb,
+				   struct cvmx_usb_pipe *pipe,
+				   struct cvmx_usb_transaction *transaction,
+				   union cvmx_usbcx_hcintx usbc_hcint,
+				   int buffer_space_left,
+				   int bytes_in_last_packet)
+{
+	/*
+	 * The only time a bulk transfer isn't complete when it finishes with
+	 * an ACK is during a split transaction. For splits we need to continue
+	 * the transfer if more data is needed.
+	 */
+	if (cvmx_usb_pipe_needs_split(usb, pipe)) {
+		if (transaction->stage == CVMX_USB_STAGE_NON_CONTROL)
+			transaction->stage =
+				CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE;
+		else if (buffer_space_left &&
+			 (bytes_in_last_packet == pipe->max_packet))
+			transaction->stage = CVMX_USB_STAGE_NON_CONTROL;
+		else
+			cvmx_usb_complete(usb, pipe, transaction,
+					  CVMX_USB_STATUS_OK);
+	} else {
+		if ((pipe->device_speed == CVMX_USB_SPEED_HIGH) &&
+		    (pipe->transfer_dir == CVMX_USB_DIRECTION_OUT) &&
+		    (usbc_hcint.s.nak))
+			pipe->flags |= CVMX_USB_PIPE_FLAGS_NEED_PING;
+		if (!buffer_space_left ||
+		    (bytes_in_last_packet < pipe->max_packet))
+			cvmx_usb_complete(usb, pipe, transaction,
+					  CVMX_USB_STATUS_OK);
+	}
+}
+
+static void cvmx_usb_transfer_intr(struct octeon_hcd *usb,
+				   struct cvmx_usb_pipe *pipe,
+				   struct cvmx_usb_transaction *transaction,
+				   int buffer_space_left,
+				   int bytes_in_last_packet)
+{
+	if (cvmx_usb_pipe_needs_split(usb, pipe)) {
+		if (transaction->stage == CVMX_USB_STAGE_NON_CONTROL) {
+			transaction->stage =
+				CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE;
+		} else if (buffer_space_left &&
+			   (bytes_in_last_packet == pipe->max_packet)) {
+			transaction->stage = CVMX_USB_STAGE_NON_CONTROL;
+		} else {
+			pipe->next_tx_frame += pipe->interval;
+			cvmx_usb_complete(usb, pipe, transaction,
+					  CVMX_USB_STATUS_OK);
+		}
+	} else if (!buffer_space_left ||
+		   (bytes_in_last_packet < pipe->max_packet)) {
+		pipe->next_tx_frame += pipe->interval;
+		cvmx_usb_complete(usb, pipe, transaction, CVMX_USB_STATUS_OK);
+	}
+}
+
+static void cvmx_usb_transfer_isoc(struct octeon_hcd *usb,
+				   struct cvmx_usb_pipe *pipe,
+				   struct cvmx_usb_transaction *transaction,
+				   int buffer_space_left,
+				   int bytes_in_last_packet,
+				   int bytes_this_transfer)
+{
+	if (cvmx_usb_pipe_needs_split(usb, pipe)) {
+		/*
+		 * ISOCHRONOUS OUT splits don't require a complete split stage.
+		 * Instead they use a sequence of begin OUT splits to transfer
+		 * the data 188 bytes at a time. Once the transfer is complete,
+		 * the pipe sleeps until the next schedule interval.
+		 */
+		if (pipe->transfer_dir == CVMX_USB_DIRECTION_OUT) {
+			/*
+			 * If no space left or this wasn't a max size packet
+			 * then this transfer is complete. Otherwise start it
+			 * again to send the next 188 bytes
+			 */
+			if (!buffer_space_left || (bytes_this_transfer < 188)) {
+				pipe->next_tx_frame += pipe->interval;
+				cvmx_usb_complete(usb, pipe, transaction,
+						  CVMX_USB_STATUS_OK);
+			}
+			return;
+		}
+		if (transaction->stage ==
+		    CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE) {
+			/*
+			 * We are in the incoming data phase. Keep getting data
+			 * until we run out of space or get a small packet
+			 */
+			if ((buffer_space_left == 0) ||
+			    (bytes_in_last_packet < pipe->max_packet)) {
+				pipe->next_tx_frame += pipe->interval;
+				cvmx_usb_complete(usb, pipe, transaction,
+						  CVMX_USB_STATUS_OK);
+			}
+		} else {
+			transaction->stage =
+				CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE;
+		}
+	} else {
+		pipe->next_tx_frame += pipe->interval;
+		cvmx_usb_complete(usb, pipe, transaction, CVMX_USB_STATUS_OK);
+	}
+}
 
 /**
  * Poll a channel for status
@@ -2446,10 +2590,9 @@ static int cvmx_usb_get_frame_number(struct cvmx_usb_state *usb)
  *
  * Returns: Zero on success
  */
-static int cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
+static int cvmx_usb_poll_channel(struct octeon_hcd *usb, int channel)
 {
-	struct octeon_hcd *priv = cvmx_usb_to_octeon(usb);
-	struct usb_hcd *hcd = octeon_to_hcd(priv);
+	struct usb_hcd *hcd = octeon_to_hcd(usb);
 	struct device *dev = hcd->self.controller;
 	union cvmx_usbcx_hcintx usbc_hcint;
 	union cvmx_usbcx_hctsizx usbc_hctsiz;
@@ -2476,9 +2619,9 @@ static int cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 			 * write of HCCHARX without changing things
 			 */
 			cvmx_usb_write_csr32(usb,
-					CVMX_USBCX_HCCHARX(channel,
-							   usb->index),
-					usbc_hcchar.u32);
+					     CVMX_USBCX_HCCHARX(channel,
+								usb->index),
+					     usbc_hcchar.u32);
 			return 0;
 		}
 
@@ -2493,14 +2636,12 @@ static int cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 				hcintmsk.u32 = 0;
 				hcintmsk.s.chhltdmsk = 1;
 				cvmx_usb_write_csr32(usb,
-						CVMX_USBCX_HCINTMSKX(channel,
-							usb->index),
-						hcintmsk.u32);
+						     CVMX_USBCX_HCINTMSKX(channel, usb->index),
+						     hcintmsk.u32);
 				usbc_hcchar.s.chdis = 1;
 				cvmx_usb_write_csr32(usb,
-						CVMX_USBCX_HCCHARX(channel,
-							usb->index),
-						usbc_hcchar.u32);
+						     CVMX_USBCX_HCCHARX(channel, usb->index),
+						     usbc_hcchar.u32);
 				return 0;
 			} else if (usbc_hcint.s.xfercompl) {
 				/*
@@ -2524,7 +2665,7 @@ static int cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 
 	/* Disable the channel interrupts now that it is done */
 	cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTMSKX(channel, usb->index), 0);
-	usb->idle_hardware_channels |= (1<<channel);
+	usb->idle_hardware_channels |= (1 << channel);
 
 	/* Make sure this channel is tied to a valid pipe */
 	pipe = usb->pipe_for_channel[channel];
@@ -2594,7 +2735,7 @@ static int cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 	 * transferred
 	 */
 	if ((transaction->stage == CVMX_USB_STAGE_SETUP) ||
-		(transaction->stage == CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE))
+	    (transaction->stage == CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE))
 		bytes_this_transfer = 0;
 
 	/*
@@ -2622,8 +2763,8 @@ static int cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 	 * will clear this flag
 	 */
 	if ((pipe->device_speed == CVMX_USB_SPEED_HIGH) &&
-		(pipe->transfer_type == CVMX_USB_TRANSFER_BULK) &&
-		(pipe->transfer_dir == CVMX_USB_DIRECTION_OUT))
+	    (pipe->transfer_type == CVMX_USB_TRANSFER_BULK) &&
+	    (pipe->transfer_dir == CVMX_USB_DIRECTION_OUT))
 		pipe->flags |= CVMX_USB_PIPE_FLAGS_NEED_PING;
 
 	if (unlikely(WARN_ON_ONCE(bytes_this_transfer < 0))) {
@@ -2632,8 +2773,8 @@ static int cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 		 * keeps substracting same byte count over and over again. In
 		 * such case we just need to fail every transaction.
 		 */
-		cvmx_usb_perform_complete(usb, pipe, transaction,
-					  CVMX_USB_COMPLETE_ERROR);
+		cvmx_usb_complete(usb, pipe, transaction,
+				  CVMX_USB_STATUS_ERROR);
 		return 0;
 	}
 
@@ -2645,24 +2786,24 @@ static int cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 		 * the actual bytes transferred
 		 */
 		pipe->pid_toggle = 0;
-		cvmx_usb_perform_complete(usb, pipe, transaction,
-					  CVMX_USB_COMPLETE_STALL);
+		cvmx_usb_complete(usb, pipe, transaction,
+				  CVMX_USB_STATUS_STALL);
 	} else if (usbc_hcint.s.xacterr) {
 		/*
 		 * XactErr as a response means the device signaled
 		 * something wrong with the transfer. For example, PID
 		 * toggle errors cause these.
 		 */
-		cvmx_usb_perform_complete(usb, pipe, transaction,
-					  CVMX_USB_COMPLETE_XACTERR);
+		cvmx_usb_complete(usb, pipe, transaction,
+				  CVMX_USB_STATUS_XACTERR);
 	} else if (usbc_hcint.s.bblerr) {
 		/* Babble Error (BblErr) */
-		cvmx_usb_perform_complete(usb, pipe, transaction,
-					  CVMX_USB_COMPLETE_BABBLEERR);
+		cvmx_usb_complete(usb, pipe, transaction,
+				  CVMX_USB_STATUS_BABBLEERR);
 	} else if (usbc_hcint.s.datatglerr) {
 		/* Data toggle error */
-		cvmx_usb_perform_complete(usb, pipe, transaction,
-					  CVMX_USB_COMPLETE_DATATGLERR);
+		cvmx_usb_complete(usb, pipe, transaction,
+				  CVMX_USB_STATUS_DATATGLERR);
 	} else if (usbc_hcint.s.nyet) {
 		/*
 		 * NYET as a response is only allowed in three cases: as a
@@ -2677,10 +2818,10 @@ static int cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 			 * again. Otherwise this transaction is complete
 			 */
 			if ((buffer_space_left == 0) ||
-				(bytes_in_last_packet < pipe->max_packet))
-				cvmx_usb_perform_complete(usb, pipe,
-						transaction,
-						CVMX_USB_COMPLETE_SUCCESS);
+			    (bytes_in_last_packet < pipe->max_packet))
+				cvmx_usb_complete(usb, pipe,
+						  transaction,
+						  CVMX_USB_STATUS_OK);
 		} else {
 			/*
 			 * Split transactions retry the split complete 4 times
@@ -2714,205 +2855,26 @@ static int cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 
 		switch (transaction->type) {
 		case CVMX_USB_TRANSFER_CONTROL:
-			switch (transaction->stage) {
-			case CVMX_USB_STAGE_NON_CONTROL:
-			case CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE:
-				/* This should be impossible */
-				cvmx_usb_perform_complete(usb, pipe,
-					transaction, CVMX_USB_COMPLETE_ERROR);
-				break;
-			case CVMX_USB_STAGE_SETUP:
-				pipe->pid_toggle = 1;
-				if (cvmx_usb_pipe_needs_split(usb, pipe))
-					transaction->stage =
-						CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE;
-				else {
-					struct usb_ctrlrequest *header =
-						cvmx_phys_to_ptr(transaction->control_header);
-					if (header->wLength)
-						transaction->stage =
-							CVMX_USB_STAGE_DATA;
-					else
-						transaction->stage =
-							CVMX_USB_STAGE_STATUS;
-				}
-				break;
-			case CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE:
-				{
-					struct usb_ctrlrequest *header =
-						cvmx_phys_to_ptr(transaction->control_header);
-					if (header->wLength)
-						transaction->stage =
-							CVMX_USB_STAGE_DATA;
-					else
-						transaction->stage =
-							CVMX_USB_STAGE_STATUS;
-				}
-				break;
-			case CVMX_USB_STAGE_DATA:
-				if (cvmx_usb_pipe_needs_split(usb, pipe)) {
-					transaction->stage =
-						CVMX_USB_STAGE_DATA_SPLIT_COMPLETE;
-					/*
-					 * For setup OUT data that are splits,
-					 * the hardware doesn't appear to count
-					 * transferred data. Here we manually
-					 * update the data transferred
-					 */
-					if (!usbc_hcchar.s.epdir) {
-						if (buffer_space_left < pipe->max_packet)
-							transaction->actual_bytes +=
-								buffer_space_left;
-						else
-							transaction->actual_bytes +=
-								pipe->max_packet;
-					}
-				} else if ((buffer_space_left == 0) ||
-						(bytes_in_last_packet <
-						 pipe->max_packet)) {
-					pipe->pid_toggle = 1;
-					transaction->stage =
-						CVMX_USB_STAGE_STATUS;
-				}
-				break;
-			case CVMX_USB_STAGE_DATA_SPLIT_COMPLETE:
-				if ((buffer_space_left == 0) ||
-						(bytes_in_last_packet <
-						 pipe->max_packet)) {
-					pipe->pid_toggle = 1;
-					transaction->stage =
-						CVMX_USB_STAGE_STATUS;
-				} else {
-					transaction->stage =
-						CVMX_USB_STAGE_DATA;
-				}
-				break;
-			case CVMX_USB_STAGE_STATUS:
-				if (cvmx_usb_pipe_needs_split(usb, pipe))
-					transaction->stage =
-						CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE;
-				else
-					cvmx_usb_perform_complete(usb, pipe,
-						transaction,
-						CVMX_USB_COMPLETE_SUCCESS);
-				break;
-			case CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE:
-				cvmx_usb_perform_complete(usb, pipe,
-						transaction,
-						CVMX_USB_COMPLETE_SUCCESS);
-				break;
-			}
+			cvmx_usb_transfer_control(usb, pipe, transaction,
+						  usbc_hcchar,
+						  buffer_space_left,
+						  bytes_in_last_packet);
 			break;
 		case CVMX_USB_TRANSFER_BULK:
+			cvmx_usb_transfer_bulk(usb, pipe, transaction,
+					       usbc_hcint, buffer_space_left,
+					       bytes_in_last_packet);
+			break;
 		case CVMX_USB_TRANSFER_INTERRUPT:
-			/*
-			 * The only time a bulk transfer isn't complete when it
-			 * finishes with an ACK is during a split transaction.
-			 * For splits we need to continue the transfer if more
-			 * data is needed
-			 */
-			if (cvmx_usb_pipe_needs_split(usb, pipe)) {
-				if (transaction->stage ==
-						CVMX_USB_STAGE_NON_CONTROL)
-					transaction->stage =
-						CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE;
-				else {
-					if (buffer_space_left &&
-						(bytes_in_last_packet ==
-						 pipe->max_packet))
-						transaction->stage =
-							CVMX_USB_STAGE_NON_CONTROL;
-					else {
-						if (transaction->type ==
-							CVMX_USB_TRANSFER_INTERRUPT)
-							pipe->next_tx_frame +=
-								pipe->interval;
-							cvmx_usb_perform_complete(
-								usb,
-								pipe,
-								transaction,
-								CVMX_USB_COMPLETE_SUCCESS);
-					}
-				}
-			} else {
-				if ((pipe->device_speed ==
-					CVMX_USB_SPEED_HIGH) &&
-				    (pipe->transfer_type ==
-				     CVMX_USB_TRANSFER_BULK) &&
-				    (pipe->transfer_dir ==
-				     CVMX_USB_DIRECTION_OUT) &&
-				    (usbc_hcint.s.nak))
-					pipe->flags |=
-						CVMX_USB_PIPE_FLAGS_NEED_PING;
-				if (!buffer_space_left ||
-					(bytes_in_last_packet <
-					 pipe->max_packet)) {
-					if (transaction->type ==
-						CVMX_USB_TRANSFER_INTERRUPT)
-						pipe->next_tx_frame +=
-							pipe->interval;
-					cvmx_usb_perform_complete(usb, pipe,
-						transaction,
-						CVMX_USB_COMPLETE_SUCCESS);
-				}
-			}
+			cvmx_usb_transfer_intr(usb, pipe, transaction,
+					       buffer_space_left,
+					       bytes_in_last_packet);
 			break;
 		case CVMX_USB_TRANSFER_ISOCHRONOUS:
-			if (cvmx_usb_pipe_needs_split(usb, pipe)) {
-				/*
-				 * ISOCHRONOUS OUT splits don't require a
-				 * complete split stage. Instead they use a
-				 * sequence of begin OUT splits to transfer the
-				 * data 188 bytes at a time. Once the transfer
-				 * is complete, the pipe sleeps until the next
-				 * schedule interval
-				 */
-				if (pipe->transfer_dir ==
-					CVMX_USB_DIRECTION_OUT) {
-					/*
-					 * If no space left or this wasn't a max
-					 * size packet then this transfer is
-					 * complete. Otherwise start it again to
-					 * send the next 188 bytes
-					 */
-					if (!buffer_space_left ||
-						(bytes_this_transfer < 188)) {
-						pipe->next_tx_frame +=
-							pipe->interval;
-						cvmx_usb_perform_complete(usb,
-							pipe, transaction,
-							CVMX_USB_COMPLETE_SUCCESS);
-					}
-				} else {
-					if (transaction->stage ==
-						CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE) {
-						/*
-						 * We are in the incoming data
-						 * phase. Keep getting data
-						 * until we run out of space or
-						 * get a small packet
-						 */
-						if ((buffer_space_left == 0) ||
-							(bytes_in_last_packet <
-							 pipe->max_packet)) {
-							pipe->next_tx_frame +=
-								pipe->interval;
-							cvmx_usb_perform_complete(
-								usb,
-								pipe,
-								transaction,
-								CVMX_USB_COMPLETE_SUCCESS);
-						}
-					} else
-						transaction->stage =
-							CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE;
-				}
-			} else {
-				pipe->next_tx_frame += pipe->interval;
-				cvmx_usb_perform_complete(usb, pipe,
-						transaction,
-						CVMX_USB_COMPLETE_SUCCESS);
-			}
+			cvmx_usb_transfer_isoc(usb, pipe, transaction,
+					       buffer_space_left,
+					       bytes_in_last_packet,
+					       bytes_this_transfer);
 			break;
 		}
 	} else if (usbc_hcint.s.nak) {
@@ -2947,20 +2909,18 @@ static int cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 			 * We get channel halted interrupts with no result bits
 			 * sets when the cable is unplugged
 			 */
-			cvmx_usb_perform_complete(usb, pipe, transaction,
-					CVMX_USB_COMPLETE_ERROR);
+			cvmx_usb_complete(usb, pipe, transaction,
+					  CVMX_USB_STATUS_ERROR);
 		}
 	}
 	return 0;
 }
 
-static void octeon_usb_port_callback(struct cvmx_usb_state *usb)
+static void octeon_usb_port_callback(struct octeon_hcd *usb)
 {
-	struct octeon_hcd *priv = cvmx_usb_to_octeon(usb);
-
-	spin_unlock(&priv->lock);
-	usb_hcd_poll_rh_status(octeon_to_hcd(priv));
-	spin_lock(&priv->lock);
+	spin_unlock(&usb->lock);
+	usb_hcd_poll_rh_status(octeon_to_hcd(usb));
+	spin_lock(&usb->lock);
 }
 
 /**
@@ -2973,7 +2933,7 @@ static void octeon_usb_port_callback(struct cvmx_usb_state *usb)
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_poll(struct cvmx_usb_state *usb)
+static int cvmx_usb_poll(struct octeon_hcd *usb)
 {
 	union cvmx_usbcx_hfnum usbc_hfnum;
 	union cvmx_usbcx_gintsts usbc_gintsts;
@@ -2982,7 +2942,7 @@ static int cvmx_usb_poll(struct cvmx_usb_state *usb)
 
 	/* Update the frame counter */
 	usbc_hfnum.u32 = cvmx_usb_read_csr32(usb, CVMX_USBCX_HFNUM(usb->index));
-	if ((usb->frame_number&0x3fff) > usbc_hfnum.s.frnum)
+	if ((usb->frame_number & 0x3fff) > usbc_hfnum.s.frnum)
 		usb->frame_number += 0x4000;
 	usb->frame_number &= ~0x3fffull;
 	usb->frame_number |= usbc_hfnum.s.frnum;
@@ -3029,8 +2989,8 @@ static int cvmx_usb_poll(struct cvmx_usb_state *usb)
 		 */
 		octeon_usb_port_callback(usb);
 		/* Clear the port change bits */
-		usbc_hprt.u32 = cvmx_usb_read_csr32(usb,
-					CVMX_USBCX_HPRT(usb->index));
+		usbc_hprt.u32 =
+			cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
 		usbc_hprt.s.prtena = 0;
 		cvmx_usb_write_csr32(usb, CVMX_USBCX_HPRT(usb->index),
 				     usbc_hprt.u32);
@@ -3057,7 +3017,7 @@ static int cvmx_usb_poll(struct cvmx_usb_state *usb)
 
 			channel = __fls(usbc_haint.u32);
 			cvmx_usb_poll_channel(usb, channel);
-			usbc_haint.u32 ^= 1<<channel;
+			usbc_haint.u32 ^= 1 << channel;
 		}
 	}
 
@@ -3074,12 +3034,12 @@ static inline struct octeon_hcd *hcd_to_octeon(struct usb_hcd *hcd)
 
 static irqreturn_t octeon_usb_irq(struct usb_hcd *hcd)
 {
-	struct octeon_hcd *priv = hcd_to_octeon(hcd);
+	struct octeon_hcd *usb = hcd_to_octeon(hcd);
 	unsigned long flags;
 
-	spin_lock_irqsave(&priv->lock, flags);
-	cvmx_usb_poll(&priv->usb);
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_lock_irqsave(&usb->lock, flags);
+	cvmx_usb_poll(usb);
+	spin_unlock_irqrestore(&usb->lock, flags);
 	return IRQ_HANDLED;
 }
 
@@ -3096,16 +3056,16 @@ static void octeon_usb_stop(struct usb_hcd *hcd)
 
 static int octeon_usb_get_frame_number(struct usb_hcd *hcd)
 {
-	struct octeon_hcd *priv = hcd_to_octeon(hcd);
+	struct octeon_hcd *usb = hcd_to_octeon(hcd);
 
-	return cvmx_usb_get_frame_number(&priv->usb);
+	return cvmx_usb_get_frame_number(usb);
 }
 
 static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 				  struct urb *urb,
 				  gfp_t mem_flags)
 {
-	struct octeon_hcd *priv = hcd_to_octeon(hcd);
+	struct octeon_hcd *usb = hcd_to_octeon(hcd);
 	struct device *dev = hcd->self.controller;
 	struct cvmx_usb_transaction *transaction = NULL;
 	struct cvmx_usb_pipe *pipe;
@@ -3115,11 +3075,11 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 	int rc;
 
 	urb->status = 0;
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&usb->lock, flags);
 
 	rc = usb_hcd_link_urb_to_ep(hcd, urb);
 	if (rc) {
-		spin_unlock_irqrestore(&priv->lock, flags);
+		spin_unlock_irqrestore(&usb->lock, flags);
 		return rc;
 	}
 
@@ -3185,7 +3145,7 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 				dev = dev->parent;
 			}
 		}
-		pipe = cvmx_usb_open_pipe(&priv->usb, usb_pipedevice(urb->pipe),
+		pipe = cvmx_usb_open_pipe(usb, usb_pipedevice(urb->pipe),
 					  usb_pipeendpoint(urb->pipe), speed,
 					  le16_to_cpu(ep->desc.wMaxPacketSize)
 					  & 0x7ff,
@@ -3199,7 +3159,7 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 					  split_device, split_port);
 		if (!pipe) {
 			usb_hcd_unlink_urb_from_ep(hcd, urb);
-			spin_unlock_irqrestore(&priv->lock, flags);
+			spin_unlock_irqrestore(&usb->lock, flags);
 			dev_dbg(dev, "Failed to create pipe\n");
 			return -ENOMEM;
 		}
@@ -3228,8 +3188,7 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 					urb->iso_frame_desc[i].offset;
 				iso_packet[i].length =
 					urb->iso_frame_desc[i].length;
-				iso_packet[i].status =
-					CVMX_USB_COMPLETE_ERROR;
+				iso_packet[i].status = CVMX_USB_STATUS_ERROR;
 			}
 			/*
 			 * Store a pointer to the list in the URB setup_packet
@@ -3237,7 +3196,7 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 			 * this saves us a bunch of logic.
 			 */
 			urb->setup_packet = (char *)iso_packet;
-			transaction = cvmx_usb_submit_isochronous(&priv->usb,
+			transaction = cvmx_usb_submit_isochronous(usb,
 								  pipe, urb);
 			/*
 			 * If submit failed we need to free our private packet
@@ -3253,29 +3212,29 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 		dev_dbg(dev, "Submit interrupt to %d.%d\n",
 			usb_pipedevice(urb->pipe),
 			usb_pipeendpoint(urb->pipe));
-		transaction = cvmx_usb_submit_interrupt(&priv->usb, pipe, urb);
+		transaction = cvmx_usb_submit_interrupt(usb, pipe, urb);
 		break;
 	case PIPE_CONTROL:
 		dev_dbg(dev, "Submit control to %d.%d\n",
 			usb_pipedevice(urb->pipe),
 			usb_pipeendpoint(urb->pipe));
-		transaction = cvmx_usb_submit_control(&priv->usb, pipe, urb);
+		transaction = cvmx_usb_submit_control(usb, pipe, urb);
 		break;
 	case PIPE_BULK:
 		dev_dbg(dev, "Submit bulk to %d.%d\n",
 			usb_pipedevice(urb->pipe),
 			usb_pipeendpoint(urb->pipe));
-		transaction = cvmx_usb_submit_bulk(&priv->usb, pipe, urb);
+		transaction = cvmx_usb_submit_bulk(usb, pipe, urb);
 		break;
 	}
 	if (!transaction) {
 		usb_hcd_unlink_urb_from_ep(hcd, urb);
-		spin_unlock_irqrestore(&priv->lock, flags);
+		spin_unlock_irqrestore(&usb->lock, flags);
 		dev_dbg(dev, "Failed to submit\n");
 		return -ENOMEM;
 	}
 	urb->hcpriv = transaction;
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&usb->lock, flags);
 	return 0;
 }
 
@@ -3283,24 +3242,24 @@ static int octeon_usb_urb_dequeue(struct usb_hcd *hcd,
 				  struct urb *urb,
 				  int status)
 {
-	struct octeon_hcd *priv = hcd_to_octeon(hcd);
+	struct octeon_hcd *usb = hcd_to_octeon(hcd);
 	unsigned long flags;
 	int rc;
 
 	if (!urb->dev)
 		return -EINVAL;
 
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&usb->lock, flags);
 
 	rc = usb_hcd_check_unlink_urb(hcd, urb, status);
 	if (rc)
 		goto out;
 
 	urb->status = status;
-	cvmx_usb_cancel(&priv->usb, urb->ep->hcpriv, urb->hcpriv);
+	cvmx_usb_cancel(usb, urb->ep->hcpriv, urb->hcpriv);
 
 out:
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&usb->lock, flags);
 
 	return rc;
 }
@@ -3311,28 +3270,28 @@ static void octeon_usb_endpoint_disable(struct usb_hcd *hcd,
 	struct device *dev = hcd->self.controller;
 
 	if (ep->hcpriv) {
-		struct octeon_hcd *priv = hcd_to_octeon(hcd);
+		struct octeon_hcd *usb = hcd_to_octeon(hcd);
 		struct cvmx_usb_pipe *pipe = ep->hcpriv;
 		unsigned long flags;
 
-		spin_lock_irqsave(&priv->lock, flags);
-		cvmx_usb_cancel_all(&priv->usb, pipe);
-		if (cvmx_usb_close_pipe(&priv->usb, pipe))
+		spin_lock_irqsave(&usb->lock, flags);
+		cvmx_usb_cancel_all(usb, pipe);
+		if (cvmx_usb_close_pipe(usb, pipe))
 			dev_dbg(dev, "Closing pipe %p failed\n", pipe);
-		spin_unlock_irqrestore(&priv->lock, flags);
+		spin_unlock_irqrestore(&usb->lock, flags);
 		ep->hcpriv = NULL;
 	}
 }
 
 static int octeon_usb_hub_status_data(struct usb_hcd *hcd, char *buf)
 {
-	struct octeon_hcd *priv = hcd_to_octeon(hcd);
+	struct octeon_hcd *usb = hcd_to_octeon(hcd);
 	struct cvmx_usb_port_status port_status;
 	unsigned long flags;
 
-	spin_lock_irqsave(&priv->lock, flags);
-	port_status = cvmx_usb_get_status(&priv->usb);
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_lock_irqsave(&usb->lock, flags);
+	port_status = cvmx_usb_get_status(usb);
+	spin_unlock_irqrestore(&usb->lock, flags);
 	buf[0] = 0;
 	buf[0] = port_status.connect_change << 1;
 
@@ -3340,12 +3299,11 @@ static int octeon_usb_hub_status_data(struct usb_hcd *hcd, char *buf)
 }
 
 static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
-				u16 wIndex, char *buf, u16 wLength)
+				  u16 wIndex, char *buf, u16 wLength)
 {
-	struct octeon_hcd *priv = hcd_to_octeon(hcd);
+	struct octeon_hcd *usb = hcd_to_octeon(hcd);
 	struct device *dev = hcd->self.controller;
 	struct cvmx_usb_port_status usb_port_status;
-	struct cvmx_usb_state *usb = &priv->usb;
 	int port_status;
 	struct usb_hub_descriptor *desc;
 	unsigned long flags;
@@ -3372,9 +3330,9 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 		switch (wValue) {
 		case USB_PORT_FEAT_ENABLE:
 			dev_dbg(dev, " ENABLE\n");
-			spin_lock_irqsave(&priv->lock, flags);
-			cvmx_usb_disable(&priv->usb);
-			spin_unlock_irqrestore(&priv->lock, flags);
+			spin_lock_irqsave(&usb->lock, flags);
+			cvmx_usb_disable(usb);
+			spin_unlock_irqrestore(&usb->lock, flags);
 			break;
 		case USB_PORT_FEAT_SUSPEND:
 			dev_dbg(dev, " SUSPEND\n");
@@ -3391,20 +3349,18 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 		case USB_PORT_FEAT_C_CONNECTION:
 			dev_dbg(dev, " C_CONNECTION\n");
 			/* Clears drivers internal connect status change flag */
-			spin_lock_irqsave(&priv->lock, flags);
-			priv->usb.port_status =
-				cvmx_usb_get_status(&priv->usb);
-			spin_unlock_irqrestore(&priv->lock, flags);
+			spin_lock_irqsave(&usb->lock, flags);
+			usb->port_status = cvmx_usb_get_status(usb);
+			spin_unlock_irqrestore(&usb->lock, flags);
 			break;
 		case USB_PORT_FEAT_C_RESET:
 			dev_dbg(dev, " C_RESET\n");
 			/*
 			 * Clears the driver's internal Port Reset Change flag.
 			 */
-			spin_lock_irqsave(&priv->lock, flags);
-			priv->usb.port_status =
-				cvmx_usb_get_status(&priv->usb);
-			spin_unlock_irqrestore(&priv->lock, flags);
+			spin_lock_irqsave(&usb->lock, flags);
+			usb->port_status = cvmx_usb_get_status(usb);
+			spin_unlock_irqrestore(&usb->lock, flags);
 			break;
 		case USB_PORT_FEAT_C_ENABLE:
 			dev_dbg(dev, " C_ENABLE\n");
@@ -3412,10 +3368,9 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			 * Clears the driver's internal Port Enable/Disable
 			 * Change flag.
 			 */
-			spin_lock_irqsave(&priv->lock, flags);
-			priv->usb.port_status =
-				cvmx_usb_get_status(&priv->usb);
-			spin_unlock_irqrestore(&priv->lock, flags);
+			spin_lock_irqsave(&usb->lock, flags);
+			usb->port_status = cvmx_usb_get_status(usb);
+			spin_unlock_irqrestore(&usb->lock, flags);
 			break;
 		case USB_PORT_FEAT_C_SUSPEND:
 			dev_dbg(dev, " C_SUSPEND\n");
@@ -3428,10 +3383,9 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 		case USB_PORT_FEAT_C_OVER_CURRENT:
 			dev_dbg(dev, " C_OVER_CURRENT\n");
 			/* Clears the driver's overcurrent Change flag */
-			spin_lock_irqsave(&priv->lock, flags);
-			priv->usb.port_status =
-				cvmx_usb_get_status(&priv->usb);
-			spin_unlock_irqrestore(&priv->lock, flags);
+			spin_lock_irqsave(&usb->lock, flags);
+			usb->port_status = cvmx_usb_get_status(usb);
+			spin_unlock_irqrestore(&usb->lock, flags);
 			break;
 		default:
 			dev_dbg(dev, " UNKNOWN\n");
@@ -3452,7 +3406,7 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 		break;
 	case GetHubStatus:
 		dev_dbg(dev, "GetHubStatus\n");
-		*(__le32 *) buf = 0;
+		*(__le32 *)buf = 0;
 		break;
 	case GetPortStatus:
 		dev_dbg(dev, "GetPortStatus\n");
@@ -3461,9 +3415,9 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			return -EINVAL;
 		}
 
-		spin_lock_irqsave(&priv->lock, flags);
-		usb_port_status = cvmx_usb_get_status(&priv->usb);
-		spin_unlock_irqrestore(&priv->lock, flags);
+		spin_lock_irqsave(&usb->lock, flags);
+		usb_port_status = cvmx_usb_get_status(usb);
+		spin_unlock_irqrestore(&usb->lock, flags);
 		port_status = 0;
 
 		if (usb_port_status.connect_change) {
@@ -3504,7 +3458,7 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			dev_dbg(dev, " LOWSPEED\n");
 		}
 
-		*((__le32 *) buf) = cpu_to_le32(port_status);
+		*((__le32 *)buf) = cpu_to_le32(port_status);
 		break;
 	case SetHubFeature:
 		dev_dbg(dev, "SetHubFeature\n");
@@ -3526,16 +3480,16 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			/*
 			 * Program the port power bit to drive VBUS on the USB.
 			 */
-			spin_lock_irqsave(&priv->lock, flags);
+			spin_lock_irqsave(&usb->lock, flags);
 			USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index),
 					cvmx_usbcx_hprt, prtpwr, 1);
-			spin_unlock_irqrestore(&priv->lock, flags);
+			spin_unlock_irqrestore(&usb->lock, flags);
 			return 0;
 		case USB_PORT_FEAT_RESET:
 			dev_dbg(dev, " RESET\n");
-			spin_lock_irqsave(&priv->lock, flags);
-			cvmx_usb_reset_port(&priv->usb);
-			spin_unlock_irqrestore(&priv->lock, flags);
+			spin_lock_irqsave(&usb->lock, flags);
+			cvmx_usb_reset_port(usb);
+			spin_unlock_irqrestore(&usb->lock, flags);
 			return 0;
 		case USB_PORT_FEAT_INDICATOR:
 			dev_dbg(dev, " INDICATOR\n");
@@ -3580,14 +3534,14 @@ static int octeon_usb_probe(struct platform_device *pdev)
 	struct device_node *usbn_node;
 	int irq = platform_get_irq(pdev, 0);
 	struct device *dev = &pdev->dev;
-	struct octeon_hcd *priv;
+	struct octeon_hcd *usb;
 	struct usb_hcd *hcd;
 	u32 clock_rate = 48000000;
 	bool is_crystal_clock = false;
 	const char *clock_type;
 	int i;
 
-	if (dev->of_node == NULL) {
+	if (!dev->of_node) {
 		dev_err(dev, "Error: empty of_node\n");
 		return -ENXIO;
 	}
@@ -3614,9 +3568,8 @@ static int octeon_usb_probe(struct platform_device *pdev)
 		break;
 	default:
 		dev_err(dev, "Illegal USBN \"clock-frequency\" %u\n",
-				clock_rate);
+			clock_rate);
 		return -ENXIO;
-
 	}
 
 	i = of_property_read_string(usbn_node,
@@ -3634,7 +3587,7 @@ static int octeon_usb_probe(struct platform_device *pdev)
 		initialize_flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND;
 
 	res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res_mem == NULL) {
+	if (!res_mem) {
 		dev_err(dev, "found no memory resource\n");
 		return -ENXIO;
 	}
@@ -3680,31 +3633,31 @@ static int octeon_usb_probe(struct platform_device *pdev)
 		return -1;
 	}
 	hcd->uses_new_polling = 1;
-	priv = (struct octeon_hcd *)hcd->hcd_priv;
+	usb = (struct octeon_hcd *)hcd->hcd_priv;
 
-	spin_lock_init(&priv->lock);
+	spin_lock_init(&usb->lock);
 
-	priv->usb.init_flags = initialize_flags;
+	usb->init_flags = initialize_flags;
 
 	/* Initialize the USB state structure */
-	priv->usb.index = usb_num;
-	INIT_LIST_HEAD(&priv->usb.idle_pipes);
-	for (i = 0; i < ARRAY_SIZE(priv->usb.active_pipes); i++)
-		INIT_LIST_HEAD(&priv->usb.active_pipes[i]);
+	usb->index = usb_num;
+	INIT_LIST_HEAD(&usb->idle_pipes);
+	for (i = 0; i < ARRAY_SIZE(usb->active_pipes); i++)
+		INIT_LIST_HEAD(&usb->active_pipes[i]);
 
 	/* Due to an errata, CN31XX doesn't support DMA */
 	if (OCTEON_IS_MODEL(OCTEON_CN31XX)) {
-		priv->usb.init_flags |= CVMX_USB_INITIALIZE_FLAGS_NO_DMA;
+		usb->init_flags |= CVMX_USB_INITIALIZE_FLAGS_NO_DMA;
 		/* Only use one channel with non DMA */
-		priv->usb.idle_hardware_channels = 0x1;
+		usb->idle_hardware_channels = 0x1;
 	} else if (OCTEON_IS_MODEL(OCTEON_CN5XXX)) {
 		/* CN5XXX have an errata with channel 3 */
-		priv->usb.idle_hardware_channels = 0xf7;
+		usb->idle_hardware_channels = 0xf7;
 	} else {
-		priv->usb.idle_hardware_channels = 0xff;
+		usb->idle_hardware_channels = 0xff;
 	}
 
-	status = cvmx_usb_initialize(dev, &priv->usb);
+	status = cvmx_usb_initialize(dev, usb);
 	if (status) {
 		dev_dbg(dev, "USB initialization failed with %d\n", status);
 		kfree(hcd);
@@ -3729,13 +3682,13 @@ static int octeon_usb_remove(struct platform_device *pdev)
 	int status;
 	struct device *dev = &pdev->dev;
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
-	struct octeon_hcd *priv = hcd_to_octeon(hcd);
+	struct octeon_hcd *usb = hcd_to_octeon(hcd);
 	unsigned long flags;
 
 	usb_remove_hcd(hcd);
-	spin_lock_irqsave(&priv->lock, flags);
-	status = cvmx_usb_shutdown(&priv->usb);
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_lock_irqsave(&usb->lock, flags);
+	status = cvmx_usb_shutdown(usb);
+	spin_unlock_irqrestore(&usb->lock, flags);
 	if (status)
 		dev_dbg(dev, "USB shutdown failed with %d\n", status);
 
@@ -3754,7 +3707,7 @@ MODULE_DEVICE_TABLE(of, octeon_usb_match);
 
 static struct platform_driver octeon_usb_driver = {
 	.driver = {
-		.name       = "OcteonUSB",
+		.name		= "octeon-hcd",
 		.of_match_table = octeon_usb_match,
 	},
 	.probe      = octeon_usb_probe,
diff --git a/drivers/staging/octeon-usb/octeon-hcd.h b/drivers/staging/octeon-usb/octeon-hcd.h
index 70e7fa5..3353aefe 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.h
+++ b/drivers/staging/octeon-usb/octeon-hcd.h
@@ -110,7 +110,7 @@
  * initialization. Do not change this register after the initial programming.
  */
 union cvmx_usbcx_gahbcfg {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_gahbcfg_s
 	 * @ptxfemplvl: Periodic TxFIFO Empty Level (PTxFEmpLvl)
@@ -145,13 +145,13 @@ union cvmx_usbcx_gahbcfg {
 	 *	* 1'b1: Unmask the interrupt assertion to the application.
 	 */
 	struct cvmx_usbcx_gahbcfg_s {
-		__BITFIELD_FIELD(uint32_t reserved_9_31	: 23,
-		__BITFIELD_FIELD(uint32_t ptxfemplvl	: 1,
-		__BITFIELD_FIELD(uint32_t nptxfemplvl	: 1,
-		__BITFIELD_FIELD(uint32_t reserved_6_6	: 1,
-		__BITFIELD_FIELD(uint32_t dmaen		: 1,
-		__BITFIELD_FIELD(uint32_t hbstlen	: 4,
-		__BITFIELD_FIELD(uint32_t glblintrmsk	: 1,
+		__BITFIELD_FIELD(u32 reserved_9_31	: 23,
+		__BITFIELD_FIELD(u32 ptxfemplvl		: 1,
+		__BITFIELD_FIELD(u32 nptxfemplvl	: 1,
+		__BITFIELD_FIELD(u32 reserved_6_6	: 1,
+		__BITFIELD_FIELD(u32 dmaen		: 1,
+		__BITFIELD_FIELD(u32 hbstlen		: 4,
+		__BITFIELD_FIELD(u32 glblintrmsk	: 1,
 		;)))))))
 	} s;
 };
@@ -164,7 +164,7 @@ union cvmx_usbcx_gahbcfg {
  * This register contains the configuration options of the O2P USB core.
  */
 union cvmx_usbcx_ghwcfg3 {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_ghwcfg3_s
 	 * @dfifodepth: DFIFO Depth (DfifoDepth)
@@ -212,16 +212,16 @@ union cvmx_usbcx_ghwcfg3 {
 	 *	* Others: Reserved
 	 */
 	struct cvmx_usbcx_ghwcfg3_s {
-		__BITFIELD_FIELD(uint32_t dfifodepth			: 16,
-		__BITFIELD_FIELD(uint32_t reserved_13_15		: 3,
-		__BITFIELD_FIELD(uint32_t ahbphysync			: 1,
-		__BITFIELD_FIELD(uint32_t rsttype			: 1,
-		__BITFIELD_FIELD(uint32_t optfeature			: 1,
-		__BITFIELD_FIELD(uint32_t vendor_control_interface_support : 1,
-		__BITFIELD_FIELD(uint32_t i2c_selection			: 1,
-		__BITFIELD_FIELD(uint32_t otgen				: 1,
-		__BITFIELD_FIELD(uint32_t pktsizewidth			: 3,
-		__BITFIELD_FIELD(uint32_t xfersizewidth			: 4,
+		__BITFIELD_FIELD(u32 dfifodepth				: 16,
+		__BITFIELD_FIELD(u32 reserved_13_15			: 3,
+		__BITFIELD_FIELD(u32 ahbphysync				: 1,
+		__BITFIELD_FIELD(u32 rsttype				: 1,
+		__BITFIELD_FIELD(u32 optfeature				: 1,
+		__BITFIELD_FIELD(u32 vendor_control_interface_support	: 1,
+		__BITFIELD_FIELD(u32 i2c_selection			: 1,
+		__BITFIELD_FIELD(u32 otgen				: 1,
+		__BITFIELD_FIELD(u32 pktsizewidth			: 3,
+		__BITFIELD_FIELD(u32 xfersizewidth			: 4,
 		;))))))))))
 	} s;
 };
@@ -238,7 +238,7 @@ union cvmx_usbcx_ghwcfg3 {
  * Mask interrupt: 1'b0, Unmask interrupt: 1'b1
  */
 union cvmx_usbcx_gintmsk {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_gintmsk_s
 	 * @wkupintmsk: Resume/Remote Wakeup Detected Interrupt Mask
@@ -279,38 +279,38 @@ union cvmx_usbcx_gintmsk {
 	 * @modemismsk: Mode Mismatch Interrupt Mask (ModeMisMsk)
 	 */
 	struct cvmx_usbcx_gintmsk_s {
-		__BITFIELD_FIELD(uint32_t wkupintmsk		: 1,
-		__BITFIELD_FIELD(uint32_t sessreqintmsk		: 1,
-		__BITFIELD_FIELD(uint32_t disconnintmsk		: 1,
-		__BITFIELD_FIELD(uint32_t conidstschngmsk	: 1,
-		__BITFIELD_FIELD(uint32_t reserved_27_27	: 1,
-		__BITFIELD_FIELD(uint32_t ptxfempmsk		: 1,
-		__BITFIELD_FIELD(uint32_t hchintmsk		: 1,
-		__BITFIELD_FIELD(uint32_t prtintmsk		: 1,
-		__BITFIELD_FIELD(uint32_t reserved_23_23	: 1,
-		__BITFIELD_FIELD(uint32_t fetsuspmsk		: 1,
-		__BITFIELD_FIELD(uint32_t incomplpmsk		: 1,
-		__BITFIELD_FIELD(uint32_t incompisoinmsk	: 1,
-		__BITFIELD_FIELD(uint32_t oepintmsk		: 1,
-		__BITFIELD_FIELD(uint32_t inepintmsk		: 1,
-		__BITFIELD_FIELD(uint32_t epmismsk		: 1,
-		__BITFIELD_FIELD(uint32_t reserved_16_16	: 1,
-		__BITFIELD_FIELD(uint32_t eopfmsk		: 1,
-		__BITFIELD_FIELD(uint32_t isooutdropmsk		: 1,
-		__BITFIELD_FIELD(uint32_t enumdonemsk		: 1,
-		__BITFIELD_FIELD(uint32_t usbrstmsk		: 1,
-		__BITFIELD_FIELD(uint32_t usbsuspmsk		: 1,
-		__BITFIELD_FIELD(uint32_t erlysuspmsk		: 1,
-		__BITFIELD_FIELD(uint32_t i2cint		: 1,
-		__BITFIELD_FIELD(uint32_t ulpickintmsk		: 1,
-		__BITFIELD_FIELD(uint32_t goutnakeffmsk		: 1,
-		__BITFIELD_FIELD(uint32_t ginnakeffmsk		: 1,
-		__BITFIELD_FIELD(uint32_t nptxfempmsk		: 1,
-		__BITFIELD_FIELD(uint32_t rxflvlmsk		: 1,
-		__BITFIELD_FIELD(uint32_t sofmsk		: 1,
-		__BITFIELD_FIELD(uint32_t otgintmsk		: 1,
-		__BITFIELD_FIELD(uint32_t modemismsk		: 1,
-		__BITFIELD_FIELD(uint32_t reserved_0_0		: 1,
+		__BITFIELD_FIELD(u32 wkupintmsk		: 1,
+		__BITFIELD_FIELD(u32 sessreqintmsk	: 1,
+		__BITFIELD_FIELD(u32 disconnintmsk	: 1,
+		__BITFIELD_FIELD(u32 conidstschngmsk	: 1,
+		__BITFIELD_FIELD(u32 reserved_27_27	: 1,
+		__BITFIELD_FIELD(u32 ptxfempmsk		: 1,
+		__BITFIELD_FIELD(u32 hchintmsk		: 1,
+		__BITFIELD_FIELD(u32 prtintmsk		: 1,
+		__BITFIELD_FIELD(u32 reserved_23_23	: 1,
+		__BITFIELD_FIELD(u32 fetsuspmsk		: 1,
+		__BITFIELD_FIELD(u32 incomplpmsk	: 1,
+		__BITFIELD_FIELD(u32 incompisoinmsk	: 1,
+		__BITFIELD_FIELD(u32 oepintmsk		: 1,
+		__BITFIELD_FIELD(u32 inepintmsk		: 1,
+		__BITFIELD_FIELD(u32 epmismsk		: 1,
+		__BITFIELD_FIELD(u32 reserved_16_16	: 1,
+		__BITFIELD_FIELD(u32 eopfmsk		: 1,
+		__BITFIELD_FIELD(u32 isooutdropmsk	: 1,
+		__BITFIELD_FIELD(u32 enumdonemsk	: 1,
+		__BITFIELD_FIELD(u32 usbrstmsk		: 1,
+		__BITFIELD_FIELD(u32 usbsuspmsk		: 1,
+		__BITFIELD_FIELD(u32 erlysuspmsk	: 1,
+		__BITFIELD_FIELD(u32 i2cint		: 1,
+		__BITFIELD_FIELD(u32 ulpickintmsk	: 1,
+		__BITFIELD_FIELD(u32 goutnakeffmsk	: 1,
+		__BITFIELD_FIELD(u32 ginnakeffmsk	: 1,
+		__BITFIELD_FIELD(u32 nptxfempmsk	: 1,
+		__BITFIELD_FIELD(u32 rxflvlmsk		: 1,
+		__BITFIELD_FIELD(u32 sofmsk		: 1,
+		__BITFIELD_FIELD(u32 otgintmsk		: 1,
+		__BITFIELD_FIELD(u32 modemismsk		: 1,
+		__BITFIELD_FIELD(u32 reserved_0_0	: 1,
 		;))))))))))))))))))))))))))))))))
 	} s;
 };
@@ -331,7 +331,7 @@ union cvmx_usbcx_gintmsk {
  * automatically.
  */
 union cvmx_usbcx_gintsts {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_gintsts_s
 	 * @wkupint: Resume/Remote Wakeup Detected Interrupt (WkUpInt)
@@ -509,38 +509,38 @@ union cvmx_usbcx_gintsts {
 	 *	* 1'b1: Host mode
 	 */
 	struct cvmx_usbcx_gintsts_s {
-		__BITFIELD_FIELD(uint32_t wkupint		: 1,
-		__BITFIELD_FIELD(uint32_t sessreqint		: 1,
-		__BITFIELD_FIELD(uint32_t disconnint		: 1,
-		__BITFIELD_FIELD(uint32_t conidstschng		: 1,
-		__BITFIELD_FIELD(uint32_t reserved_27_27	: 1,
-		__BITFIELD_FIELD(uint32_t ptxfemp		: 1,
-		__BITFIELD_FIELD(uint32_t hchint		: 1,
-		__BITFIELD_FIELD(uint32_t prtint		: 1,
-		__BITFIELD_FIELD(uint32_t reserved_23_23	: 1,
-		__BITFIELD_FIELD(uint32_t fetsusp		: 1,
-		__BITFIELD_FIELD(uint32_t incomplp		: 1,
-		__BITFIELD_FIELD(uint32_t incompisoin		: 1,
-		__BITFIELD_FIELD(uint32_t oepint		: 1,
-		__BITFIELD_FIELD(uint32_t iepint		: 1,
-		__BITFIELD_FIELD(uint32_t epmis			: 1,
-		__BITFIELD_FIELD(uint32_t reserved_16_16	: 1,
-		__BITFIELD_FIELD(uint32_t eopf			: 1,
-		__BITFIELD_FIELD(uint32_t isooutdrop		: 1,
-		__BITFIELD_FIELD(uint32_t enumdone		: 1,
-		__BITFIELD_FIELD(uint32_t usbrst		: 1,
-		__BITFIELD_FIELD(uint32_t usbsusp		: 1,
-		__BITFIELD_FIELD(uint32_t erlysusp		: 1,
-		__BITFIELD_FIELD(uint32_t i2cint		: 1,
-		__BITFIELD_FIELD(uint32_t ulpickint		: 1,
-		__BITFIELD_FIELD(uint32_t goutnakeff		: 1,
-		__BITFIELD_FIELD(uint32_t ginnakeff		: 1,
-		__BITFIELD_FIELD(uint32_t nptxfemp		: 1,
-		__BITFIELD_FIELD(uint32_t rxflvl		: 1,
-		__BITFIELD_FIELD(uint32_t sof			: 1,
-		__BITFIELD_FIELD(uint32_t otgint		: 1,
-		__BITFIELD_FIELD(uint32_t modemis		: 1,
-		__BITFIELD_FIELD(uint32_t curmod		: 1,
+		__BITFIELD_FIELD(u32 wkupint		: 1,
+		__BITFIELD_FIELD(u32 sessreqint		: 1,
+		__BITFIELD_FIELD(u32 disconnint		: 1,
+		__BITFIELD_FIELD(u32 conidstschng	: 1,
+		__BITFIELD_FIELD(u32 reserved_27_27	: 1,
+		__BITFIELD_FIELD(u32 ptxfemp		: 1,
+		__BITFIELD_FIELD(u32 hchint		: 1,
+		__BITFIELD_FIELD(u32 prtint		: 1,
+		__BITFIELD_FIELD(u32 reserved_23_23	: 1,
+		__BITFIELD_FIELD(u32 fetsusp		: 1,
+		__BITFIELD_FIELD(u32 incomplp		: 1,
+		__BITFIELD_FIELD(u32 incompisoin	: 1,
+		__BITFIELD_FIELD(u32 oepint		: 1,
+		__BITFIELD_FIELD(u32 iepint		: 1,
+		__BITFIELD_FIELD(u32 epmis		: 1,
+		__BITFIELD_FIELD(u32 reserved_16_16	: 1,
+		__BITFIELD_FIELD(u32 eopf		: 1,
+		__BITFIELD_FIELD(u32 isooutdrop		: 1,
+		__BITFIELD_FIELD(u32 enumdone		: 1,
+		__BITFIELD_FIELD(u32 usbrst		: 1,
+		__BITFIELD_FIELD(u32 usbsusp		: 1,
+		__BITFIELD_FIELD(u32 erlysusp		: 1,
+		__BITFIELD_FIELD(u32 i2cint		: 1,
+		__BITFIELD_FIELD(u32 ulpickint		: 1,
+		__BITFIELD_FIELD(u32 goutnakeff		: 1,
+		__BITFIELD_FIELD(u32 ginnakeff		: 1,
+		__BITFIELD_FIELD(u32 nptxfemp		: 1,
+		__BITFIELD_FIELD(u32 rxflvl		: 1,
+		__BITFIELD_FIELD(u32 sof		: 1,
+		__BITFIELD_FIELD(u32 otgint		: 1,
+		__BITFIELD_FIELD(u32 modemis		: 1,
+		__BITFIELD_FIELD(u32 curmod		: 1,
 		;))))))))))))))))))))))))))))))))
 	} s;
 };
@@ -554,7 +554,7 @@ union cvmx_usbcx_gintsts {
  * Non-Periodic TxFIFO.
  */
 union cvmx_usbcx_gnptxfsiz {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_gnptxfsiz_s
 	 * @nptxfdep: Non-Periodic TxFIFO Depth (NPTxFDep)
@@ -566,8 +566,8 @@ union cvmx_usbcx_gnptxfsiz {
 	 *	Transmit FIFO RAM.
 	 */
 	struct cvmx_usbcx_gnptxfsiz_s {
-		__BITFIELD_FIELD(uint32_t nptxfdep	: 16,
-		__BITFIELD_FIELD(uint32_t nptxfstaddr	: 16,
+		__BITFIELD_FIELD(u32 nptxfdep		: 16,
+		__BITFIELD_FIELD(u32 nptxfstaddr	: 16,
 		;))
 	} s;
 };
@@ -581,7 +581,7 @@ union cvmx_usbcx_gnptxfsiz {
  * Non-Periodic TxFIFO and the Non-Periodic Transmit Request Queue.
  */
 union cvmx_usbcx_gnptxsts {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_gnptxsts_s
 	 * @nptxqtop: Top of the Non-Periodic Transmit Request Queue (NPTxQTop)
@@ -617,10 +617,10 @@ union cvmx_usbcx_gnptxsts {
 	 *	* Others: Reserved
 	 */
 	struct cvmx_usbcx_gnptxsts_s {
-		__BITFIELD_FIELD(uint32_t reserved_31_31	: 1,
-		__BITFIELD_FIELD(uint32_t nptxqtop		: 7,
-		__BITFIELD_FIELD(uint32_t nptxqspcavail		: 8,
-		__BITFIELD_FIELD(uint32_t nptxfspcavail		: 16,
+		__BITFIELD_FIELD(u32 reserved_31_31	: 1,
+		__BITFIELD_FIELD(u32 nptxqtop		: 7,
+		__BITFIELD_FIELD(u32 nptxqspcavail	: 8,
+		__BITFIELD_FIELD(u32 nptxfspcavail	: 16,
 		;))))
 	} s;
 };
@@ -634,7 +634,7 @@ union cvmx_usbcx_gnptxsts {
  * the core.
  */
 union cvmx_usbcx_grstctl {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_grstctl_s
 	 * @ahbidle: AHB Master Idle (AHBIdle)
@@ -739,16 +739,16 @@ union cvmx_usbcx_grstctl {
 	 *	selected, the PHY domain has to be reset for proper operation.
 	 */
 	struct cvmx_usbcx_grstctl_s {
-		__BITFIELD_FIELD(uint32_t ahbidle		: 1,
-		__BITFIELD_FIELD(uint32_t dmareq		: 1,
-		__BITFIELD_FIELD(uint32_t reserved_11_29	: 19,
-		__BITFIELD_FIELD(uint32_t txfnum		: 5,
-		__BITFIELD_FIELD(uint32_t txfflsh		: 1,
-		__BITFIELD_FIELD(uint32_t rxfflsh		: 1,
-		__BITFIELD_FIELD(uint32_t intknqflsh		: 1,
-		__BITFIELD_FIELD(uint32_t frmcntrrst		: 1,
-		__BITFIELD_FIELD(uint32_t hsftrst		: 1,
-		__BITFIELD_FIELD(uint32_t csftrst		: 1,
+		__BITFIELD_FIELD(u32 ahbidle		: 1,
+		__BITFIELD_FIELD(u32 dmareq		: 1,
+		__BITFIELD_FIELD(u32 reserved_11_29	: 19,
+		__BITFIELD_FIELD(u32 txfnum		: 5,
+		__BITFIELD_FIELD(u32 txfflsh		: 1,
+		__BITFIELD_FIELD(u32 rxfflsh		: 1,
+		__BITFIELD_FIELD(u32 intknqflsh		: 1,
+		__BITFIELD_FIELD(u32 frmcntrrst		: 1,
+		__BITFIELD_FIELD(u32 hsftrst		: 1,
+		__BITFIELD_FIELD(u32 csftrst		: 1,
 		;))))))))))
 	} s;
 };
@@ -762,7 +762,7 @@ union cvmx_usbcx_grstctl {
  * RxFIFO.
  */
 union cvmx_usbcx_grxfsiz {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_grxfsiz_s
 	 * @rxfdep: RxFIFO Depth (RxFDep)
@@ -771,8 +771,8 @@ union cvmx_usbcx_grxfsiz {
 	 *	* Maximum value is 32768
 	 */
 	struct cvmx_usbcx_grxfsiz_s {
-		__BITFIELD_FIELD(uint32_t reserved_16_31	: 16,
-		__BITFIELD_FIELD(uint32_t rxfdep		: 16,
+		__BITFIELD_FIELD(u32 reserved_16_31	: 16,
+		__BITFIELD_FIELD(u32 rxfdep		: 16,
 		;))
 	} s;
 };
@@ -792,7 +792,7 @@ union cvmx_usbcx_grxfsiz {
  *       hardware.
  */
 union cvmx_usbcx_grxstsph {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_grxstsph_s
 	 * @pktsts: Packet Status (PktSts)
@@ -814,11 +814,11 @@ union cvmx_usbcx_grxstsph {
 	 *	packet belongs.
 	 */
 	struct cvmx_usbcx_grxstsph_s {
-		__BITFIELD_FIELD(uint32_t reserved_21_31	: 11,
-		__BITFIELD_FIELD(uint32_t pktsts		: 4,
-		__BITFIELD_FIELD(uint32_t dpid			: 2,
-		__BITFIELD_FIELD(uint32_t bcnt			: 11,
-		__BITFIELD_FIELD(uint32_t chnum			: 4,
+		__BITFIELD_FIELD(u32 reserved_21_31	: 11,
+		__BITFIELD_FIELD(u32 pktsts		: 4,
+		__BITFIELD_FIELD(u32 dpid		: 2,
+		__BITFIELD_FIELD(u32 bcnt		: 11,
+		__BITFIELD_FIELD(u32 chnum		: 4,
 		;)))))
 	} s;
 };
@@ -835,7 +835,7 @@ union cvmx_usbcx_grxstsph {
  * to this register after the initial programming.
  */
 union cvmx_usbcx_gusbcfg {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_gusbcfg_s
 	 * @otgi2csel: UTMIFS or I2C Interface Select (OtgI2CSel)
@@ -895,19 +895,19 @@ union cvmx_usbcx_gusbcfg {
 	 *	* One 48-MHz PHY clock = 0.25 bit times
 	 */
 	struct cvmx_usbcx_gusbcfg_s {
-		__BITFIELD_FIELD(uint32_t reserved_17_31	: 15,
-		__BITFIELD_FIELD(uint32_t otgi2csel		: 1,
-		__BITFIELD_FIELD(uint32_t phylpwrclksel		: 1,
-		__BITFIELD_FIELD(uint32_t reserved_14_14	: 1,
-		__BITFIELD_FIELD(uint32_t usbtrdtim		: 4,
-		__BITFIELD_FIELD(uint32_t hnpcap		: 1,
-		__BITFIELD_FIELD(uint32_t srpcap		: 1,
-		__BITFIELD_FIELD(uint32_t ddrsel		: 1,
-		__BITFIELD_FIELD(uint32_t physel		: 1,
-		__BITFIELD_FIELD(uint32_t fsintf		: 1,
-		__BITFIELD_FIELD(uint32_t ulpi_utmi_sel		: 1,
-		__BITFIELD_FIELD(uint32_t phyif			: 1,
-		__BITFIELD_FIELD(uint32_t toutcal		: 3,
+		__BITFIELD_FIELD(u32 reserved_17_31	: 15,
+		__BITFIELD_FIELD(u32 otgi2csel		: 1,
+		__BITFIELD_FIELD(u32 phylpwrclksel	: 1,
+		__BITFIELD_FIELD(u32 reserved_14_14	: 1,
+		__BITFIELD_FIELD(u32 usbtrdtim		: 4,
+		__BITFIELD_FIELD(u32 hnpcap		: 1,
+		__BITFIELD_FIELD(u32 srpcap		: 1,
+		__BITFIELD_FIELD(u32 ddrsel		: 1,
+		__BITFIELD_FIELD(u32 physel		: 1,
+		__BITFIELD_FIELD(u32 fsintf		: 1,
+		__BITFIELD_FIELD(u32 ulpi_utmi_sel	: 1,
+		__BITFIELD_FIELD(u32 phyif		: 1,
+		__BITFIELD_FIELD(u32 toutcal		: 3,
 		;)))))))))))))
 	} s;
 };
@@ -925,15 +925,15 @@ union cvmx_usbcx_gusbcfg {
  * in the corresponding Host Channel-n Interrupt register.
  */
 union cvmx_usbcx_haint {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_haint_s
 	 * @haint: Channel Interrupts (HAINT)
 	 *	One bit per channel: Bit 0 for Channel 0, bit 15 for Channel 15
 	 */
 	struct cvmx_usbcx_haint_s {
-		__BITFIELD_FIELD(uint32_t reserved_16_31	: 16,
-		__BITFIELD_FIELD(uint32_t haint			: 16,
+		__BITFIELD_FIELD(u32 reserved_16_31	: 16,
+		__BITFIELD_FIELD(u32 haint		: 16,
 		;))
 	} s;
 };
@@ -950,15 +950,15 @@ union cvmx_usbcx_haint {
  * Mask interrupt: 1'b0 Unmask interrupt: 1'b1
  */
 union cvmx_usbcx_haintmsk {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_haintmsk_s
 	 * @haintmsk: Channel Interrupt Mask (HAINTMsk)
 	 *	One bit per channel: Bit 0 for channel 0, bit 15 for channel 15
 	 */
 	struct cvmx_usbcx_haintmsk_s {
-		__BITFIELD_FIELD(uint32_t reserved_16_31	: 16,
-		__BITFIELD_FIELD(uint32_t haintmsk		: 16,
+		__BITFIELD_FIELD(u32 reserved_16_31	: 16,
+		__BITFIELD_FIELD(u32 haintmsk		: 16,
 		;))
 	} s;
 };
@@ -970,7 +970,7 @@ union cvmx_usbcx_haintmsk {
  *
  */
 union cvmx_usbcx_hccharx {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_hccharx_s
 	 * @chena: Channel Enable (ChEna)
@@ -1028,17 +1028,17 @@ union cvmx_usbcx_hccharx {
 	 *	Indicates the maximum packet size of the associated endpoint.
 	 */
 	struct cvmx_usbcx_hccharx_s {
-		__BITFIELD_FIELD(uint32_t chena			: 1,
-		__BITFIELD_FIELD(uint32_t chdis			: 1,
-		__BITFIELD_FIELD(uint32_t oddfrm		: 1,
-		__BITFIELD_FIELD(uint32_t devaddr		: 7,
-		__BITFIELD_FIELD(uint32_t ec			: 2,
-		__BITFIELD_FIELD(uint32_t eptype		: 2,
-		__BITFIELD_FIELD(uint32_t lspddev		: 1,
-		__BITFIELD_FIELD(uint32_t reserved_16_16	: 1,
-		__BITFIELD_FIELD(uint32_t epdir			: 1,
-		__BITFIELD_FIELD(uint32_t epnum			: 4,
-		__BITFIELD_FIELD(uint32_t mps			: 11,
+		__BITFIELD_FIELD(u32 chena		: 1,
+		__BITFIELD_FIELD(u32 chdis		: 1,
+		__BITFIELD_FIELD(u32 oddfrm		: 1,
+		__BITFIELD_FIELD(u32 devaddr		: 7,
+		__BITFIELD_FIELD(u32 ec			: 2,
+		__BITFIELD_FIELD(u32 eptype		: 2,
+		__BITFIELD_FIELD(u32 lspddev		: 1,
+		__BITFIELD_FIELD(u32 reserved_16_16	: 1,
+		__BITFIELD_FIELD(u32 epdir		: 1,
+		__BITFIELD_FIELD(u32 epnum		: 4,
+		__BITFIELD_FIELD(u32 mps		: 11,
 		;)))))))))))
 	} s;
 };
@@ -1052,7 +1052,7 @@ union cvmx_usbcx_hccharx {
  * register after initializing the host.
  */
 union cvmx_usbcx_hcfg {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_hcfg_s
 	 * @fslssupp: FS- and LS-Only Support (FSLSSupp)
@@ -1084,9 +1084,9 @@ union cvmx_usbcx_hcfg {
 	 *	* 2'b11: Reserved
 	 */
 	struct cvmx_usbcx_hcfg_s {
-		__BITFIELD_FIELD(uint32_t reserved_3_31	: 29,
-		__BITFIELD_FIELD(uint32_t fslssupp	: 1,
-		__BITFIELD_FIELD(uint32_t fslspclksel	: 2,
+		__BITFIELD_FIELD(u32 reserved_3_31	: 29,
+		__BITFIELD_FIELD(u32 fslssupp		: 1,
+		__BITFIELD_FIELD(u32 fslspclksel	: 2,
 		;)))
 	} s;
 };
@@ -1106,7 +1106,7 @@ union cvmx_usbcx_hcfg {
  * HAINT and GINTSTS registers.
  */
 union cvmx_usbcx_hcintx {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_hcintx_s
 	 * @datatglerr: Data Toggle Error (DataTglErr)
@@ -1126,18 +1126,18 @@ union cvmx_usbcx_hcintx {
 	 *	Transfer completed normally without any errors.
 	 */
 	struct cvmx_usbcx_hcintx_s {
-		__BITFIELD_FIELD(uint32_t reserved_11_31	: 21,
-		__BITFIELD_FIELD(uint32_t datatglerr		: 1,
-		__BITFIELD_FIELD(uint32_t frmovrun		: 1,
-		__BITFIELD_FIELD(uint32_t bblerr		: 1,
-		__BITFIELD_FIELD(uint32_t xacterr		: 1,
-		__BITFIELD_FIELD(uint32_t nyet			: 1,
-		__BITFIELD_FIELD(uint32_t ack			: 1,
-		__BITFIELD_FIELD(uint32_t nak			: 1,
-		__BITFIELD_FIELD(uint32_t stall			: 1,
-		__BITFIELD_FIELD(uint32_t ahberr		: 1,
-		__BITFIELD_FIELD(uint32_t chhltd		: 1,
-		__BITFIELD_FIELD(uint32_t xfercompl		: 1,
+		__BITFIELD_FIELD(u32 reserved_11_31	: 21,
+		__BITFIELD_FIELD(u32 datatglerr		: 1,
+		__BITFIELD_FIELD(u32 frmovrun		: 1,
+		__BITFIELD_FIELD(u32 bblerr		: 1,
+		__BITFIELD_FIELD(u32 xacterr		: 1,
+		__BITFIELD_FIELD(u32 nyet		: 1,
+		__BITFIELD_FIELD(u32 ack		: 1,
+		__BITFIELD_FIELD(u32 nak		: 1,
+		__BITFIELD_FIELD(u32 stall		: 1,
+		__BITFIELD_FIELD(u32 ahberr		: 1,
+		__BITFIELD_FIELD(u32 chhltd		: 1,
+		__BITFIELD_FIELD(u32 xfercompl		: 1,
 		;))))))))))))
 	} s;
 };
@@ -1152,7 +1152,7 @@ union cvmx_usbcx_hcintx {
  * Mask interrupt: 1'b0 Unmask interrupt: 1'b1
  */
 union cvmx_usbcx_hcintmskx {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_hcintmskx_s
 	 * @datatglerrmsk: Data Toggle Error Mask (DataTglErrMsk)
@@ -1168,18 +1168,18 @@ union cvmx_usbcx_hcintmskx {
 	 * @xfercomplmsk: Transfer Completed Mask (XferComplMsk)
 	 */
 	struct cvmx_usbcx_hcintmskx_s {
-		__BITFIELD_FIELD(uint32_t reserved_11_31		: 21,
-		__BITFIELD_FIELD(uint32_t datatglerrmsk			: 1,
-		__BITFIELD_FIELD(uint32_t frmovrunmsk			: 1,
-		__BITFIELD_FIELD(uint32_t bblerrmsk			: 1,
-		__BITFIELD_FIELD(uint32_t xacterrmsk			: 1,
-		__BITFIELD_FIELD(uint32_t nyetmsk			: 1,
-		__BITFIELD_FIELD(uint32_t ackmsk			: 1,
-		__BITFIELD_FIELD(uint32_t nakmsk			: 1,
-		__BITFIELD_FIELD(uint32_t stallmsk			: 1,
-		__BITFIELD_FIELD(uint32_t ahberrmsk			: 1,
-		__BITFIELD_FIELD(uint32_t chhltdmsk			: 1,
-		__BITFIELD_FIELD(uint32_t xfercomplmsk			: 1,
+		__BITFIELD_FIELD(u32 reserved_11_31		: 21,
+		__BITFIELD_FIELD(u32 datatglerrmsk		: 1,
+		__BITFIELD_FIELD(u32 frmovrunmsk		: 1,
+		__BITFIELD_FIELD(u32 bblerrmsk			: 1,
+		__BITFIELD_FIELD(u32 xacterrmsk			: 1,
+		__BITFIELD_FIELD(u32 nyetmsk			: 1,
+		__BITFIELD_FIELD(u32 ackmsk			: 1,
+		__BITFIELD_FIELD(u32 nakmsk			: 1,
+		__BITFIELD_FIELD(u32 stallmsk			: 1,
+		__BITFIELD_FIELD(u32 ahberrmsk			: 1,
+		__BITFIELD_FIELD(u32 chhltdmsk			: 1,
+		__BITFIELD_FIELD(u32 xfercomplmsk		: 1,
 		;))))))))))))
 	} s;
 };
@@ -1191,7 +1191,7 @@ union cvmx_usbcx_hcintmskx {
  *
  */
 union cvmx_usbcx_hcspltx {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_hcspltx_s
 	 * @spltena: Split Enable (SpltEna)
@@ -1219,12 +1219,12 @@ union cvmx_usbcx_hcspltx {
 	 *	translator.
 	 */
 	struct cvmx_usbcx_hcspltx_s {
-		__BITFIELD_FIELD(uint32_t spltena			: 1,
-		__BITFIELD_FIELD(uint32_t reserved_17_30		: 14,
-		__BITFIELD_FIELD(uint32_t compsplt			: 1,
-		__BITFIELD_FIELD(uint32_t xactpos			: 2,
-		__BITFIELD_FIELD(uint32_t hubaddr			: 7,
-		__BITFIELD_FIELD(uint32_t prtaddr			: 7,
+		__BITFIELD_FIELD(u32 spltena			: 1,
+		__BITFIELD_FIELD(u32 reserved_17_30		: 14,
+		__BITFIELD_FIELD(u32 compsplt			: 1,
+		__BITFIELD_FIELD(u32 xactpos			: 2,
+		__BITFIELD_FIELD(u32 hubaddr			: 7,
+		__BITFIELD_FIELD(u32 prtaddr			: 7,
 		;))))))
 	} s;
 };
@@ -1236,7 +1236,7 @@ union cvmx_usbcx_hcspltx {
  *
  */
 union cvmx_usbcx_hctsizx {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_hctsizx_s
 	 * @dopng: Do Ping (DoPng)
@@ -1265,10 +1265,10 @@ union cvmx_usbcx_hctsizx {
 	 *	size for IN transactions (periodic and non-periodic).
 	 */
 	struct cvmx_usbcx_hctsizx_s {
-		__BITFIELD_FIELD(uint32_t dopng			: 1,
-		__BITFIELD_FIELD(uint32_t pid			: 2,
-		__BITFIELD_FIELD(uint32_t pktcnt		: 10,
-		__BITFIELD_FIELD(uint32_t xfersize		: 19,
+		__BITFIELD_FIELD(u32 dopng		: 1,
+		__BITFIELD_FIELD(u32 pid		: 2,
+		__BITFIELD_FIELD(u32 pktcnt		: 10,
+		__BITFIELD_FIELD(u32 xfersize		: 19,
 		;))))
 	} s;
 };
@@ -1282,7 +1282,7 @@ union cvmx_usbcx_hctsizx {
  * which the O2P USB core has enumerated.
  */
 union cvmx_usbcx_hfir {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_hfir_s
 	 * @frint: Frame Interval (FrInt)
@@ -1303,8 +1303,8 @@ union cvmx_usbcx_hfir {
 	 *	* 1 ms (PHY clock frequency for FS/LS)
 	 */
 	struct cvmx_usbcx_hfir_s {
-		__BITFIELD_FIELD(uint32_t reserved_16_31		: 16,
-		__BITFIELD_FIELD(uint32_t frint				: 16,
+		__BITFIELD_FIELD(u32 reserved_16_31		: 16,
+		__BITFIELD_FIELD(u32 frint			: 16,
 		;))
 	} s;
 };
@@ -1319,7 +1319,7 @@ union cvmx_usbcx_hfir {
  * in the current (micro)frame.
  */
 union cvmx_usbcx_hfnum {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_hfnum_s
 	 * @frrem: Frame Time Remaining (FrRem)
@@ -1333,8 +1333,8 @@ union cvmx_usbcx_hfnum {
 	 *	USB, and is reset to 0 when it reaches 16'h3FFF.
 	 */
 	struct cvmx_usbcx_hfnum_s {
-		__BITFIELD_FIELD(uint32_t frrem		: 16,
-		__BITFIELD_FIELD(uint32_t frnum		: 16,
+		__BITFIELD_FIELD(u32 frrem		: 16,
+		__BITFIELD_FIELD(u32 frnum		: 16,
 		;))
 	} s;
 };
@@ -1355,7 +1355,7 @@ union cvmx_usbcx_hfnum {
  * the application must write a 1 to the bit to clear the interrupt.
  */
 union cvmx_usbcx_hprt {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_hprt_s
 	 * @prtspd: Port Speed (PrtSpd)
@@ -1461,21 +1461,21 @@ union cvmx_usbcx_hprt {
 	 *	* 1: A device is attached to the port.
 	 */
 	struct cvmx_usbcx_hprt_s {
-		__BITFIELD_FIELD(uint32_t reserved_19_31	: 13,
-		__BITFIELD_FIELD(uint32_t prtspd		: 2,
-		__BITFIELD_FIELD(uint32_t prttstctl		: 4,
-		__BITFIELD_FIELD(uint32_t prtpwr		: 1,
-		__BITFIELD_FIELD(uint32_t prtlnsts		: 2,
-		__BITFIELD_FIELD(uint32_t reserved_9_9		: 1,
-		__BITFIELD_FIELD(uint32_t prtrst		: 1,
-		__BITFIELD_FIELD(uint32_t prtsusp		: 1,
-		__BITFIELD_FIELD(uint32_t prtres		: 1,
-		__BITFIELD_FIELD(uint32_t prtovrcurrchng	: 1,
-		__BITFIELD_FIELD(uint32_t prtovrcurract		: 1,
-		__BITFIELD_FIELD(uint32_t prtenchng		: 1,
-		__BITFIELD_FIELD(uint32_t prtena		: 1,
-		__BITFIELD_FIELD(uint32_t prtconndet		: 1,
-		__BITFIELD_FIELD(uint32_t prtconnsts		: 1,
+		__BITFIELD_FIELD(u32 reserved_19_31	: 13,
+		__BITFIELD_FIELD(u32 prtspd		: 2,
+		__BITFIELD_FIELD(u32 prttstctl		: 4,
+		__BITFIELD_FIELD(u32 prtpwr		: 1,
+		__BITFIELD_FIELD(u32 prtlnsts		: 2,
+		__BITFIELD_FIELD(u32 reserved_9_9	: 1,
+		__BITFIELD_FIELD(u32 prtrst		: 1,
+		__BITFIELD_FIELD(u32 prtsusp		: 1,
+		__BITFIELD_FIELD(u32 prtres		: 1,
+		__BITFIELD_FIELD(u32 prtovrcurrchng	: 1,
+		__BITFIELD_FIELD(u32 prtovrcurract	: 1,
+		__BITFIELD_FIELD(u32 prtenchng		: 1,
+		__BITFIELD_FIELD(u32 prtena		: 1,
+		__BITFIELD_FIELD(u32 prtconndet		: 1,
+		__BITFIELD_FIELD(u32 prtconnsts		: 1,
 		;)))))))))))))))
 	} s;
 };
@@ -1489,7 +1489,7 @@ union cvmx_usbcx_hprt {
  * TxFIFO, as shown in Figures 310 and 311.
  */
 union cvmx_usbcx_hptxfsiz {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_hptxfsiz_s
 	 * @ptxfsize: Host Periodic TxFIFO Depth (PTxFSize)
@@ -1499,8 +1499,8 @@ union cvmx_usbcx_hptxfsiz {
 	 * @ptxfstaddr: Host Periodic TxFIFO Start Address (PTxFStAddr)
 	 */
 	struct cvmx_usbcx_hptxfsiz_s {
-		__BITFIELD_FIELD(uint32_t ptxfsize	: 16,
-		__BITFIELD_FIELD(uint32_t ptxfstaddr	: 16,
+		__BITFIELD_FIELD(u32 ptxfsize	: 16,
+		__BITFIELD_FIELD(u32 ptxfstaddr	: 16,
 		;))
 	} s;
 };
@@ -1514,7 +1514,7 @@ union cvmx_usbcx_hptxfsiz {
  * TxFIFO and the Periodic Transmit Request Queue
  */
 union cvmx_usbcx_hptxsts {
-	uint32_t u32;
+	u32 u32;
 	/**
 	 * struct cvmx_usbcx_hptxsts_s
 	 * @ptxqtop: Top of the Periodic Transmit Request Queue (PTxQTop)
@@ -1555,9 +1555,9 @@ union cvmx_usbcx_hptxsts {
 	 *	* Others: Reserved
 	 */
 	struct cvmx_usbcx_hptxsts_s {
-		__BITFIELD_FIELD(uint32_t ptxqtop	: 8,
-		__BITFIELD_FIELD(uint32_t ptxqspcavail	: 8,
-		__BITFIELD_FIELD(uint32_t ptxfspcavail	: 16,
+		__BITFIELD_FIELD(u32 ptxqtop		: 8,
+		__BITFIELD_FIELD(u32 ptxqspcavail	: 8,
+		__BITFIELD_FIELD(u32 ptxfspcavail	: 16,
 		;)))
 	} s;
 };
@@ -1571,7 +1571,7 @@ union cvmx_usbcx_hptxsts {
  * hreset and phy_rst signals.
  */
 union cvmx_usbnx_clk_ctl {
-	uint64_t u64;
+	u64 u64;
 	/**
 	 * struct cvmx_usbnx_clk_ctl_s
 	 * @divide2: The 'hclk' used by the USB subsystem is derived
@@ -1661,21 +1661,21 @@ union cvmx_usbnx_clk_ctl {
 	 *	until AFTER this field is set and then read.
 	 */
 	struct cvmx_usbnx_clk_ctl_s {
-		__BITFIELD_FIELD(uint64_t reserved_20_63	: 44,
-		__BITFIELD_FIELD(uint64_t divide2		: 2,
-		__BITFIELD_FIELD(uint64_t hclk_rst		: 1,
-		__BITFIELD_FIELD(uint64_t p_x_on		: 1,
-		__BITFIELD_FIELD(uint64_t p_rtype		: 2,
-		__BITFIELD_FIELD(uint64_t p_com_on		: 1,
-		__BITFIELD_FIELD(uint64_t p_c_sel		: 2,
-		__BITFIELD_FIELD(uint64_t cdiv_byp		: 1,
-		__BITFIELD_FIELD(uint64_t sd_mode		: 2,
-		__BITFIELD_FIELD(uint64_t s_bist		: 1,
-		__BITFIELD_FIELD(uint64_t por			: 1,
-		__BITFIELD_FIELD(uint64_t enable		: 1,
-		__BITFIELD_FIELD(uint64_t prst			: 1,
-		__BITFIELD_FIELD(uint64_t hrst			: 1,
-		__BITFIELD_FIELD(uint64_t divide		: 3,
+		__BITFIELD_FIELD(u64 reserved_20_63	: 44,
+		__BITFIELD_FIELD(u64 divide2		: 2,
+		__BITFIELD_FIELD(u64 hclk_rst		: 1,
+		__BITFIELD_FIELD(u64 p_x_on		: 1,
+		__BITFIELD_FIELD(u64 p_rtype		: 2,
+		__BITFIELD_FIELD(u64 p_com_on		: 1,
+		__BITFIELD_FIELD(u64 p_c_sel		: 2,
+		__BITFIELD_FIELD(u64 cdiv_byp		: 1,
+		__BITFIELD_FIELD(u64 sd_mode		: 2,
+		__BITFIELD_FIELD(u64 s_bist		: 1,
+		__BITFIELD_FIELD(u64 por		: 1,
+		__BITFIELD_FIELD(u64 enable		: 1,
+		__BITFIELD_FIELD(u64 prst		: 1,
+		__BITFIELD_FIELD(u64 hrst		: 1,
+		__BITFIELD_FIELD(u64 divide		: 3,
 		;)))))))))))))))
 	} s;
 };
@@ -1688,7 +1688,7 @@ union cvmx_usbnx_clk_ctl {
  * Contains general control and status information for the USBN block.
  */
 union cvmx_usbnx_usbp_ctl_status {
-	uint64_t u64;
+	u64 u64;
 	/**
 	 * struct cvmx_usbnx_usbp_ctl_status_s
 	 * @txrisetune: HS Transmitter Rise/Fall Time Adjustment
@@ -1804,41 +1804,41 @@ union cvmx_usbnx_usbp_ctl_status {
 	 *	de-assertion.
 	 */
 	struct cvmx_usbnx_usbp_ctl_status_s {
-		__BITFIELD_FIELD(uint64_t txrisetune		: 1,
-		__BITFIELD_FIELD(uint64_t txvreftune		: 4,
-		__BITFIELD_FIELD(uint64_t txfslstune		: 4,
-		__BITFIELD_FIELD(uint64_t txhsxvtune		: 2,
-		__BITFIELD_FIELD(uint64_t sqrxtune		: 3,
-		__BITFIELD_FIELD(uint64_t compdistune		: 3,
-		__BITFIELD_FIELD(uint64_t otgtune		: 3,
-		__BITFIELD_FIELD(uint64_t otgdisable		: 1,
-		__BITFIELD_FIELD(uint64_t portreset		: 1,
-		__BITFIELD_FIELD(uint64_t drvvbus		: 1,
-		__BITFIELD_FIELD(uint64_t lsbist		: 1,
-		__BITFIELD_FIELD(uint64_t fsbist		: 1,
-		__BITFIELD_FIELD(uint64_t hsbist		: 1,
-		__BITFIELD_FIELD(uint64_t bist_done		: 1,
-		__BITFIELD_FIELD(uint64_t bist_err		: 1,
-		__BITFIELD_FIELD(uint64_t tdata_out		: 4,
-		__BITFIELD_FIELD(uint64_t siddq			: 1,
-		__BITFIELD_FIELD(uint64_t txpreemphasistune	: 1,
-		__BITFIELD_FIELD(uint64_t dma_bmode		: 1,
-		__BITFIELD_FIELD(uint64_t usbc_end		: 1,
-		__BITFIELD_FIELD(uint64_t usbp_bist		: 1,
-		__BITFIELD_FIELD(uint64_t tclk			: 1,
-		__BITFIELD_FIELD(uint64_t dp_pulld		: 1,
-		__BITFIELD_FIELD(uint64_t dm_pulld		: 1,
-		__BITFIELD_FIELD(uint64_t hst_mode		: 1,
-		__BITFIELD_FIELD(uint64_t tuning		: 4,
-		__BITFIELD_FIELD(uint64_t tx_bs_enh		: 1,
-		__BITFIELD_FIELD(uint64_t tx_bs_en		: 1,
-		__BITFIELD_FIELD(uint64_t loop_enb		: 1,
-		__BITFIELD_FIELD(uint64_t vtest_enb		: 1,
-		__BITFIELD_FIELD(uint64_t bist_enb		: 1,
-		__BITFIELD_FIELD(uint64_t tdata_sel		: 1,
-		__BITFIELD_FIELD(uint64_t taddr_in		: 4,
-		__BITFIELD_FIELD(uint64_t tdata_in		: 8,
-		__BITFIELD_FIELD(uint64_t ate_reset		: 1,
+		__BITFIELD_FIELD(u64 txrisetune		: 1,
+		__BITFIELD_FIELD(u64 txvreftune		: 4,
+		__BITFIELD_FIELD(u64 txfslstune		: 4,
+		__BITFIELD_FIELD(u64 txhsxvtune		: 2,
+		__BITFIELD_FIELD(u64 sqrxtune		: 3,
+		__BITFIELD_FIELD(u64 compdistune	: 3,
+		__BITFIELD_FIELD(u64 otgtune		: 3,
+		__BITFIELD_FIELD(u64 otgdisable		: 1,
+		__BITFIELD_FIELD(u64 portreset		: 1,
+		__BITFIELD_FIELD(u64 drvvbus		: 1,
+		__BITFIELD_FIELD(u64 lsbist		: 1,
+		__BITFIELD_FIELD(u64 fsbist		: 1,
+		__BITFIELD_FIELD(u64 hsbist		: 1,
+		__BITFIELD_FIELD(u64 bist_done		: 1,
+		__BITFIELD_FIELD(u64 bist_err		: 1,
+		__BITFIELD_FIELD(u64 tdata_out		: 4,
+		__BITFIELD_FIELD(u64 siddq		: 1,
+		__BITFIELD_FIELD(u64 txpreemphasistune	: 1,
+		__BITFIELD_FIELD(u64 dma_bmode		: 1,
+		__BITFIELD_FIELD(u64 usbc_end		: 1,
+		__BITFIELD_FIELD(u64 usbp_bist		: 1,
+		__BITFIELD_FIELD(u64 tclk		: 1,
+		__BITFIELD_FIELD(u64 dp_pulld		: 1,
+		__BITFIELD_FIELD(u64 dm_pulld		: 1,
+		__BITFIELD_FIELD(u64 hst_mode		: 1,
+		__BITFIELD_FIELD(u64 tuning		: 4,
+		__BITFIELD_FIELD(u64 tx_bs_enh		: 1,
+		__BITFIELD_FIELD(u64 tx_bs_en		: 1,
+		__BITFIELD_FIELD(u64 loop_enb		: 1,
+		__BITFIELD_FIELD(u64 vtest_enb		: 1,
+		__BITFIELD_FIELD(u64 bist_enb		: 1,
+		__BITFIELD_FIELD(u64 tdata_sel		: 1,
+		__BITFIELD_FIELD(u64 taddr_in		: 4,
+		__BITFIELD_FIELD(u64 tdata_in		: 8,
+		__BITFIELD_FIELD(u64 ate_reset		: 1,
 		;)))))))))))))))))))))))))))))))))))
 	} s;
 };
diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
index 6aed3cf..ed55304 100644
--- a/drivers/staging/octeon/ethernet-rx.c
+++ b/drivers/staging/octeon/ethernet-rx.c
@@ -26,8 +26,6 @@
 #include <net/xfrm.h>
 #endif /* CONFIG_XFRM */
 
-#include <linux/atomic.h>
-
 #include <asm/octeon/octeon.h>
 
 #include "ethernet-defines.h"
@@ -364,17 +362,8 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
 
 				/* Increment RX stats for virtual ports */
 				if (port >= CVMX_PIP_NUM_INPUT_PORTS) {
-#ifdef CONFIG_64BIT
-					atomic64_add(1,
-						     (atomic64_t *)&priv->stats.rx_packets);
-					atomic64_add(skb->len,
-						     (atomic64_t *)&priv->stats.rx_bytes);
-#else
-					atomic_add(1,
-						   (atomic_t *)&priv->stats.rx_packets);
-					atomic_add(skb->len,
-						   (atomic_t *)&priv->stats.rx_bytes);
-#endif
+					priv->stats.rx_packets++;
+					priv->stats.rx_bytes += skb->len;
 				}
 				netif_receive_skb(skb);
 			} else {
@@ -383,13 +372,7 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
 				  printk_ratelimited("%s: Device not up, packet dropped\n",
 					   dev->name);
 				*/
-#ifdef CONFIG_64BIT
-				atomic64_add(1,
-					     (atomic64_t *)&priv->stats.rx_dropped);
-#else
-				atomic_add(1,
-					   (atomic_t *)&priv->stats.rx_dropped);
-#endif
+				priv->stats.rx_dropped++;
 				dev_kfree_skb_irq(skb);
 			}
 		} else {
diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index 8d239e2..00adc52 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -226,18 +226,7 @@ static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev)
 		priv->stats.multicast += rx_status.multicast_packets;
 		priv->stats.rx_crc_errors += rx_status.inb_errors;
 		priv->stats.rx_frame_errors += rx_status.fcs_align_err_packets;
-
-		/*
-		 * The drop counter must be incremented atomically
-		 * since the RX tasklet also increments it.
-		 */
-#ifdef CONFIG_64BIT
-		atomic64_add(rx_status.dropped_packets,
-			     (atomic64_t *)&priv->stats.rx_dropped);
-#else
-		atomic_add(rx_status.dropped_packets,
-			     (atomic_t *)&priv->stats.rx_dropped);
-#endif
+		priv->stats.rx_dropped += rx_status.dropped_packets;
 	}
 
 	return &priv->stats;
@@ -790,7 +779,6 @@ static int cvm_oct_probe(struct platform_device *pdev)
 				cvmx_fau_atomic_write32(priv->fau + qos * 4, 0);
 
 			switch (priv->imode) {
-
 			/* These types don't support ports to IPD/PKO */
 			case CVMX_HELPER_INTERFACE_MODE_DISABLED:
 			case CVMX_HELPER_INTERFACE_MODE_PCIE:
diff --git a/drivers/staging/rdma/hfi1/efivar.c b/drivers/staging/rdma/hfi1/efivar.c
index e569f9f..47dfe25 100644
--- a/drivers/staging/rdma/hfi1/efivar.c
+++ b/drivers/staging/rdma/hfi1/efivar.c
@@ -127,13 +127,12 @@ static int read_efi_var(const char *name, unsigned long *size,
 	 * temporary buffer.  Now allocate a correctly sized
 	 * buffer.
 	 */
-	data = kmalloc(temp_size, GFP_KERNEL);
+	data = kmemdup(temp_buffer, temp_size, GFP_KERNEL);
 	if (!data) {
 		ret = -ENOMEM;
 		goto fail;
 	}
 
-	memcpy(data, temp_buffer, temp_size);
 	*size = temp_size;
 	*return_data = data;
 
diff --git a/drivers/staging/rdma/hfi1/mr.c b/drivers/staging/rdma/hfi1/mr.c
index a3f8b88..3825321 100644
--- a/drivers/staging/rdma/hfi1/mr.c
+++ b/drivers/staging/rdma/hfi1/mr.c
@@ -70,7 +70,7 @@ static int init_mregion(struct hfi1_mregion *mr, struct ib_pd *pd,
 	int m, i = 0;
 	int rval = 0;
 
-	m = (count + HFI1_SEGSZ - 1) / HFI1_SEGSZ;
+	m = DIV_ROUND_UP(count, HFI1_SEGSZ);
 	for (; i < m; i++) {
 		mr->map[i] = kzalloc(sizeof(*mr->map[0]), GFP_KERNEL);
 		if (!mr->map[i])
@@ -159,7 +159,7 @@ static struct hfi1_mr *alloc_mr(int count, struct ib_pd *pd)
 	int m;
 
 	/* Allocate struct plus pointers to first level page tables. */
-	m = (count + HFI1_SEGSZ - 1) / HFI1_SEGSZ;
+	m = DIV_ROUND_UP(count, HFI1_SEGSZ);
 	mr = kzalloc(sizeof(*mr) + m * sizeof(mr->mr.map[0]), GFP_KERNEL);
 	if (!mr)
 		goto bail;
@@ -333,7 +333,7 @@ struct ib_fmr *hfi1_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
 	int rval = -ENOMEM;
 
 	/* Allocate struct plus pointers to first level page tables. */
-	m = (fmr_attr->max_pages + HFI1_SEGSZ - 1) / HFI1_SEGSZ;
+	m = DIV_ROUND_UP(fmr_attr->max_pages, HFI1_SEGSZ);
 	fmr = kzalloc(sizeof(*fmr) + m * sizeof(fmr->mr.map[0]), GFP_KERNEL);
 	if (!fmr)
 		goto bail;
diff --git a/drivers/staging/rdma/hfi1/user_sdma.c b/drivers/staging/rdma/hfi1/user_sdma.c
index 4f55950..2f48419 100644
--- a/drivers/staging/rdma/hfi1/user_sdma.c
+++ b/drivers/staging/rdma/hfi1/user_sdma.c
@@ -67,7 +67,6 @@
 #include "hfi.h"
 #include "sdma.h"
 #include "user_sdma.h"
-#include "sdma.h"
 #include "verbs.h"  /* for the headers */
 #include "common.h" /* for struct hfi1_tid_info */
 #include "trace.h"
@@ -925,8 +924,8 @@ static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts)
 			unsigned pageidx, len;
 
 			base = (unsigned long)iovec->iov.iov_base;
-			offset = ((base + iovec->offset + iov_offset) &
-				  ~PAGE_MASK);
+			offset = offset_in_page(base + iovec->offset +
+						iov_offset);
 			pageidx = (((iovec->offset + iov_offset +
 				     base) - (base & PAGE_MASK)) >> PAGE_SHIFT);
 			len = offset + req->info.fragsize > PAGE_SIZE ?
diff --git a/drivers/staging/rtl8188eu/core/rtw_iol.c b/drivers/staging/rtl8188eu/core/rtw_iol.c
index cdcf0ea..2e2145c 100644
--- a/drivers/staging/rtl8188eu/core/rtw_iol.c
+++ b/drivers/staging/rtl8188eu/core/rtw_iol.c
@@ -11,21 +11,18 @@
  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  * more details.
  *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
  *
  ******************************************************************************/
 
-#include<rtw_iol.h>
+#include <rtw_iol.h>
 
-bool rtw_IOL_applied(struct adapter  *adapter)
+bool rtw_IOL_applied(struct adapter *adapter)
 {
-	if (1 == adapter->registrypriv.fw_iol)
+	if (adapter->registrypriv.fw_iol == 1)
 		return true;
 
-	if ((2 == adapter->registrypriv.fw_iol) && (!adapter_to_dvobj(adapter)->ishighspeed))
+	if ((adapter->registrypriv.fw_iol == 2) &&
+	    (!adapter_to_dvobj(adapter)->ishighspeed))
 		return true;
 	return false;
 }
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme.c b/drivers/staging/rtl8188eu/core/rtw_mlme.c
index 9c2e659..a645a62 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme.c
@@ -122,10 +122,8 @@ void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
 {
 	rtw_free_mlme_priv_ie_data(pmlmepriv);
 
-	if (pmlmepriv) {
-		if (pmlmepriv->free_bss_buf)
-			vfree(pmlmepriv->free_bss_buf);
-	}
+	if (pmlmepriv)
+		vfree(pmlmepriv->free_bss_buf);
 }
 
 struct wlan_network *_rtw_alloc_network(struct mlme_priv *pmlmepriv)
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
index 96e5c6d..e3add48 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
@@ -20,6 +20,7 @@
 #define _RTW_MLME_EXT_C_
 
 #include <linux/ieee80211.h>
+#include <asm/unaligned.h>
 
 #include <osdep_service.h>
 #include <drv_types.h>
@@ -1027,7 +1028,6 @@ static void issue_assocreq(struct adapter *padapter)
 	unsigned char		*pframe, *p;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
 	__le16 *fctrl;
-	__le16		le_tmp;
 	unsigned int	i, j, ie_len, index = 0;
 	unsigned char	rf_type, bssrate[NumRates], sta_bssrate[NumRates];
 	struct ndis_802_11_var_ie *pIE;
@@ -1073,8 +1073,7 @@ static void issue_assocreq(struct adapter *padapter)
 
 	/* listen interval */
 	/* todo: listen interval for power saving */
-	le_tmp = cpu_to_le16(3);
-	memcpy(pframe , (unsigned char *)&le_tmp, 2);
+	put_unaligned_le16(3, pframe);
 	pframe += 2;
 	pattrib->pktlen += 2;
 
diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c
index c81639c..40b7a30 100644
--- a/drivers/staging/rtl8188eu/core/rtw_recv.c
+++ b/drivers/staging/rtl8188eu/core/rtw_recv.c
@@ -116,9 +116,8 @@ void _rtw_free_recv_priv(struct recv_priv *precvpriv)
 
 	rtw_free_uc_swdec_pending_queue(padapter);
 
-	if (precvpriv->pallocated_frame_buf) {
+	if (precvpriv->pallocated_frame_buf)
 		vfree(precvpriv->pallocated_frame_buf);
-	}
 
 	rtw_hal_free_recv_priv(padapter);
 
@@ -910,9 +909,8 @@ static int sta2ap_data_frame(struct adapter *adapter,
 
 		process_pwrbit_data(adapter, precv_frame);
 
-		if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) {
+		if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE)
 			process_wmmps_data(adapter, precv_frame);
-		}
 
 		if (GetFrameSubType(ptr) & BIT(6)) {
 			/* No data, will not indicate to upper layer, temporily count it here */
@@ -1527,10 +1525,9 @@ struct recv_frame *recvframe_chk_defrag(struct adapter *padapter,
 		if (pdefrag_q != NULL) {
 			if (fragnum == 0) {
 				/* the first fragment */
-				if (!list_empty(&pdefrag_q->queue)) {
+				if (!list_empty(&pdefrag_q->queue))
 					/* free current defrag_q */
 					rtw_free_recvframe_queue(pdefrag_q, pfree_recv_queue);
-				}
 			}
 
 			/* Then enqueue the 0~(n-1) fragment into the defrag_q */
@@ -1646,9 +1643,8 @@ static int amsdu_to_msdu(struct adapter *padapter, struct recv_frame *prframe)
 		a_len -= nSubframe_Length;
 		if (a_len != 0) {
 			padding_len = 4 - ((nSubframe_Length + ETH_HLEN) & (4-1));
-			if (padding_len == 4) {
+			if (padding_len == 4)
 				padding_len = 0;
-			}
 
 			if (a_len < padding_len) {
 				goto exit;
diff --git a/drivers/staging/rtl8188eu/core/rtw_xmit.c b/drivers/staging/rtl8188eu/core/rtw_xmit.c
index d5ce1e2..f2dd7a6 100644
--- a/drivers/staging/rtl8188eu/core/rtw_xmit.c
+++ b/drivers/staging/rtl8188eu/core/rtw_xmit.c
@@ -247,11 +247,8 @@ void _rtw_free_xmit_priv(struct xmit_priv *pxmitpriv)
 		pxmitbuf++;
 	}
 
-	if (pxmitpriv->pallocated_frame_buf)
-		vfree(pxmitpriv->pallocated_frame_buf);
-
-	if (pxmitpriv->pallocated_xmitbuf)
-		vfree(pxmitpriv->pallocated_xmitbuf);
+	vfree(pxmitpriv->pallocated_frame_buf);
+	vfree(pxmitpriv->pallocated_xmitbuf);
 
 	/*  free xmit extension buff */
 	pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
diff --git a/drivers/staging/rtl8188eu/hal/bb_cfg.c b/drivers/staging/rtl8188eu/hal/bb_cfg.c
index f58a822..c2ad6a3 100644
--- a/drivers/staging/rtl8188eu/hal/bb_cfg.c
+++ b/drivers/staging/rtl8188eu/hal/bb_cfg.c
@@ -598,18 +598,12 @@ static void rtl88e_phy_init_bb_rf_register_definition(struct adapter *adapter)
 
 	reg[RF_PATH_A] = &hal_data->PHYRegDef[RF_PATH_A];
 	reg[RF_PATH_B] = &hal_data->PHYRegDef[RF_PATH_B];
-	reg[RF_PATH_C] = &hal_data->PHYRegDef[RF_PATH_C];
-	reg[RF_PATH_D] = &hal_data->PHYRegDef[RF_PATH_D];
 
 	reg[RF_PATH_A]->rfintfs = rFPGA0_XAB_RFInterfaceSW;
 	reg[RF_PATH_B]->rfintfs = rFPGA0_XAB_RFInterfaceSW;
-	reg[RF_PATH_C]->rfintfs = rFPGA0_XCD_RFInterfaceSW;
-	reg[RF_PATH_D]->rfintfs = rFPGA0_XCD_RFInterfaceSW;
 
 	reg[RF_PATH_A]->rfintfi = rFPGA0_XAB_RFInterfaceRB;
 	reg[RF_PATH_B]->rfintfi = rFPGA0_XAB_RFInterfaceRB;
-	reg[RF_PATH_C]->rfintfi = rFPGA0_XCD_RFInterfaceRB;
-	reg[RF_PATH_D]->rfintfi = rFPGA0_XCD_RFInterfaceRB;
 
 	reg[RF_PATH_A]->rfintfo = rFPGA0_XA_RFInterfaceOE;
 	reg[RF_PATH_B]->rfintfo = rFPGA0_XB_RFInterfaceOE;
@@ -622,13 +616,9 @@ static void rtl88e_phy_init_bb_rf_register_definition(struct adapter *adapter)
 
 	reg[RF_PATH_A]->rfLSSI_Select = rFPGA0_XAB_RFParameter;
 	reg[RF_PATH_B]->rfLSSI_Select = rFPGA0_XAB_RFParameter;
-	reg[RF_PATH_C]->rfLSSI_Select = rFPGA0_XCD_RFParameter;
-	reg[RF_PATH_D]->rfLSSI_Select = rFPGA0_XCD_RFParameter;
 
 	reg[RF_PATH_A]->rfTxGainStage = rFPGA0_TxGainStage;
 	reg[RF_PATH_B]->rfTxGainStage = rFPGA0_TxGainStage;
-	reg[RF_PATH_C]->rfTxGainStage = rFPGA0_TxGainStage;
-	reg[RF_PATH_D]->rfTxGainStage = rFPGA0_TxGainStage;
 
 	reg[RF_PATH_A]->rfHSSIPara1 = rFPGA0_XA_HSSIParameter1;
 	reg[RF_PATH_B]->rfHSSIPara1 = rFPGA0_XB_HSSIParameter1;
@@ -638,43 +628,27 @@ static void rtl88e_phy_init_bb_rf_register_definition(struct adapter *adapter)
 
 	reg[RF_PATH_A]->rfSwitchControl = rFPGA0_XAB_SwitchControl;
 	reg[RF_PATH_B]->rfSwitchControl = rFPGA0_XAB_SwitchControl;
-	reg[RF_PATH_C]->rfSwitchControl = rFPGA0_XCD_SwitchControl;
-	reg[RF_PATH_D]->rfSwitchControl = rFPGA0_XCD_SwitchControl;
 
 	reg[RF_PATH_A]->rfAGCControl1 = rOFDM0_XAAGCCore1;
 	reg[RF_PATH_B]->rfAGCControl1 = rOFDM0_XBAGCCore1;
-	reg[RF_PATH_C]->rfAGCControl1 = rOFDM0_XCAGCCore1;
-	reg[RF_PATH_D]->rfAGCControl1 = rOFDM0_XDAGCCore1;
 
 	reg[RF_PATH_A]->rfAGCControl2 = rOFDM0_XAAGCCore2;
 	reg[RF_PATH_B]->rfAGCControl2 = rOFDM0_XBAGCCore2;
-	reg[RF_PATH_C]->rfAGCControl2 = rOFDM0_XCAGCCore2;
-	reg[RF_PATH_D]->rfAGCControl2 = rOFDM0_XDAGCCore2;
 
 	reg[RF_PATH_A]->rfRxIQImbalance = rOFDM0_XARxIQImbalance;
 	reg[RF_PATH_B]->rfRxIQImbalance = rOFDM0_XBRxIQImbalance;
-	reg[RF_PATH_C]->rfRxIQImbalance = rOFDM0_XCRxIQImbalance;
-	reg[RF_PATH_D]->rfRxIQImbalance = rOFDM0_XDRxIQImbalance;
 
 	reg[RF_PATH_A]->rfRxAFE = rOFDM0_XARxAFE;
 	reg[RF_PATH_B]->rfRxAFE = rOFDM0_XBRxAFE;
-	reg[RF_PATH_C]->rfRxAFE = rOFDM0_XCRxAFE;
-	reg[RF_PATH_D]->rfRxAFE = rOFDM0_XDRxAFE;
 
 	reg[RF_PATH_A]->rfTxIQImbalance = rOFDM0_XATxIQImbalance;
 	reg[RF_PATH_B]->rfTxIQImbalance = rOFDM0_XBTxIQImbalance;
-	reg[RF_PATH_C]->rfTxIQImbalance = rOFDM0_XCTxIQImbalance;
-	reg[RF_PATH_D]->rfTxIQImbalance = rOFDM0_XDTxIQImbalance;
 
 	reg[RF_PATH_A]->rfTxAFE = rOFDM0_XATxAFE;
 	reg[RF_PATH_B]->rfTxAFE = rOFDM0_XBTxAFE;
-	reg[RF_PATH_C]->rfTxAFE = rOFDM0_XCTxAFE;
-	reg[RF_PATH_D]->rfTxAFE = rOFDM0_XDTxAFE;
 
 	reg[RF_PATH_A]->rfLSSIReadBack = rFPGA0_XA_LSSIReadBack;
 	reg[RF_PATH_B]->rfLSSIReadBack = rFPGA0_XB_LSSIReadBack;
-	reg[RF_PATH_C]->rfLSSIReadBack = rFPGA0_XC_LSSIReadBack;
-	reg[RF_PATH_D]->rfLSSIReadBack = rFPGA0_XD_LSSIReadBack;
 
 	reg[RF_PATH_A]->rfLSSIReadBackPi = TransceiverA_HSPI_Readback;
 	reg[RF_PATH_B]->rfLSSIReadBackPi = TransceiverB_HSPI_Readback;
diff --git a/drivers/staging/rtl8188eu/hal/phy.c b/drivers/staging/rtl8188eu/hal/phy.c
index d3e8a8e..ae42b44 100644
--- a/drivers/staging/rtl8188eu/hal/phy.c
+++ b/drivers/staging/rtl8188eu/hal/phy.c
@@ -180,32 +180,6 @@ static void get_tx_power_index(struct adapter *adapt, u8 channel, u8 *cck_pwr,
 			hal_data->BW20_24G_Diff[TxCount][RF_PATH_A]+
 			hal_data->BW20_24G_Diff[TxCount][index];
 			bw40_pwr[TxCount] = hal_data->Index24G_BW40_Base[TxCount][index];
-		} else if (TxCount == RF_PATH_C) {
-			cck_pwr[TxCount] = hal_data->Index24G_CCK_Base[TxCount][index];
-			ofdm_pwr[TxCount] = hal_data->Index24G_BW40_Base[RF_PATH_A][index]+
-			hal_data->BW20_24G_Diff[RF_PATH_A][index]+
-			hal_data->BW20_24G_Diff[RF_PATH_B][index]+
-			hal_data->BW20_24G_Diff[TxCount][index];
-
-			bw20_pwr[TxCount] = hal_data->Index24G_BW40_Base[RF_PATH_A][index]+
-			hal_data->BW20_24G_Diff[RF_PATH_A][index]+
-			hal_data->BW20_24G_Diff[RF_PATH_B][index]+
-			hal_data->BW20_24G_Diff[TxCount][index];
-			bw40_pwr[TxCount] = hal_data->Index24G_BW40_Base[TxCount][index];
-		} else if (TxCount == RF_PATH_D) {
-			cck_pwr[TxCount] = hal_data->Index24G_CCK_Base[TxCount][index];
-			ofdm_pwr[TxCount] = hal_data->Index24G_BW40_Base[RF_PATH_A][index]+
-			hal_data->BW20_24G_Diff[RF_PATH_A][index]+
-			hal_data->BW20_24G_Diff[RF_PATH_B][index]+
-			hal_data->BW20_24G_Diff[RF_PATH_C][index]+
-			hal_data->BW20_24G_Diff[TxCount][index];
-
-			bw20_pwr[TxCount] = hal_data->Index24G_BW40_Base[RF_PATH_A][index]+
-			hal_data->BW20_24G_Diff[RF_PATH_A][index]+
-			hal_data->BW20_24G_Diff[RF_PATH_B][index]+
-			hal_data->BW20_24G_Diff[RF_PATH_C][index]+
-			hal_data->BW20_24G_Diff[TxCount][index];
-			bw40_pwr[TxCount] = hal_data->Index24G_BW40_Base[TxCount][index];
 		}
 	}
 }
diff --git a/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h b/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h
index b8833fa..2670d6b 100644
--- a/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h
+++ b/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h
@@ -69,8 +69,6 @@ enum hw90_block {
 enum rf_radio_path {
 	RF_PATH_A = 0,			/* Radio Path A */
 	RF_PATH_B = 1,			/* Radio Path B */
-	RF_PATH_C = 2,			/* Radio Path C */
-	RF_PATH_D = 3,			/* Radio Path D */
 };
 
 #define MAX_PG_GROUP 13
diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
index aec20bb..5d6a1c9 100644
--- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
@@ -3095,7 +3095,6 @@ struct iw_handler_def rtw_handlers_def = {
 	.get_wireless_stats = rtw_get_wireless_stats,
 };
 
-#include <rtw_android.h>
 int rtw_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
 	struct iwreq *wrq = (struct iwreq *)rq;
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
index e9c4f97..ba64a4f 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
@@ -680,7 +680,7 @@ static void _rtl92e_hwconfig(struct net_device *dev)
 
 	rtl92e_writeb(dev, BW_OPMODE, regBwOpMode);
 	{
-		u32 ratr_value = 0;
+		u32 ratr_value;
 
 		ratr_value = regRATR;
 		if (priv->rf_type == RF_1T2R)
@@ -1000,7 +1000,7 @@ void rtl92e_link_change(struct net_device *dev)
 	_rtl92e_update_msr(dev);
 
 	if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
-		u32 reg = 0;
+		u32 reg;
 
 		reg = rtl92e_readl(dev, RCR);
 		if (priv->rtllib->state == RTLLIB_LINKED) {
@@ -1186,7 +1186,7 @@ void  rtl92e_fill_tx_desc(struct net_device *dev, struct tx_desc *pdesc,
 	struct r8192_priv *priv = rtllib_priv(dev);
 	dma_addr_t mapping = pci_map_single(priv->pdev, skb->data, skb->len,
 			 PCI_DMA_TODEVICE);
-	struct tx_fwinfo_8190pci *pTxFwInfo = NULL;
+	struct tx_fwinfo_8190pci *pTxFwInfo;
 
 	pTxFwInfo = (struct tx_fwinfo_8190pci *)skb->data;
 	memset(pTxFwInfo, 0, sizeof(struct tx_fwinfo_8190pci));
@@ -2235,7 +2235,7 @@ void rtl92e_disable_irq(struct net_device *dev)
 
 void rtl92e_clear_irq(struct net_device *dev)
 {
-	u32 tmp = 0;
+	u32 tmp;
 
 	tmp = rtl92e_readl(dev, ISR);
 	rtl92e_writel(dev, ISR, tmp);
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index 8f989a9..0b06482 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -288,7 +288,7 @@ static void _rtl92e_tx_timeout(struct net_device *dev)
 
 void rtl92e_irq_enable(struct net_device *dev)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 
 	priv->irq_enabled = 1;
 
@@ -297,7 +297,7 @@ void rtl92e_irq_enable(struct net_device *dev)
 
 void rtl92e_irq_disable(struct net_device *dev)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 
 	priv->ops->irq_disable(dev);
 
@@ -306,7 +306,7 @@ void rtl92e_irq_disable(struct net_device *dev)
 
 static void _rtl92e_set_chan(struct net_device *dev, short ch)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 
 	RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
 	if (priv->chan_forced)
@@ -1546,14 +1546,14 @@ static void _rtl92e_watchdog_timer_cb(unsigned long data)
 *****************************************************************************/
 void rtl92e_rx_enable(struct net_device *dev)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 
 	priv->ops->rx_enable(dev);
 }
 
 void rtl92e_tx_enable(struct net_device *dev)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 
 	priv->ops->tx_enable(dev);
 
@@ -1612,7 +1612,7 @@ static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
 				   int rate)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 	int ret;
 	struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
 				    MAX_DEV_ADDR_SIZE);
@@ -1643,7 +1643,7 @@ static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
 
 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 	int ret;
 	struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
 				    MAX_DEV_ADDR_SIZE);
@@ -1676,7 +1676,7 @@ static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 static void _rtl92e_tx_isr(struct net_device *dev, int prio)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 
 	struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
 
@@ -1850,7 +1850,7 @@ static short _rtl92e_alloc_rx_ring(struct net_device *dev)
 static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
 				 unsigned int entries)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 	struct tx_desc *ring;
 	dma_addr_t dma;
 	int i;
@@ -1944,7 +1944,7 @@ void rtl92e_reset_desc_ring(struct net_device *dev)
 void rtl92e_update_rx_pkt_timestamp(struct net_device *dev,
 				    struct rtllib_rx_stats *stats)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 
 	if (stats->bIsAMPDU && !stats->bFirstMPDU)
 		stats->mac_time = priv->LastRxDescTSF;
@@ -2022,7 +2022,7 @@ void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
 
 static void _rtl92e_rx_normal(struct net_device *dev)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 	struct rtllib_hdr_1addr *rtllib_hdr = NULL;
 	bool unicast_packet = false;
 	bool bLedBlinking = true;
@@ -2128,7 +2128,7 @@ done:
 
 static void _rtl92e_tx_resume(struct net_device *dev)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 	struct rtllib_device *ieee = priv->rtllib;
 	struct sk_buff *skb;
 	int queue_index;
@@ -2279,7 +2279,7 @@ static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
 /* based on ipw2200 driver */
 static int _rtl92e_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 	struct iwreq *wrq = (struct iwreq *)rq;
 	int ret = -1;
 	struct rtllib_device *ieee = priv->rtllib;
@@ -2403,7 +2403,7 @@ out:
 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
 {
 	struct net_device *dev = (struct net_device *) netdev;
-	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+	struct r8192_priv *priv = rtllib_priv(dev);
 	unsigned long flags;
 	u32 inta;
 	u32 intb;
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
index ef03242..b6b714d 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
@@ -1875,7 +1875,7 @@ void rtl92e_dm_rf_pathcheck_wq(void *data)
 				  struct r8192_priv,
 				  rfpath_check_wq);
 	struct net_device *dev = priv->rtllib->dev;
-	u8 rfpath = 0, i;
+	u8 rfpath, i;
 
 	rfpath = rtl92e_readb(dev, 0xc04);
 
diff --git a/drivers/staging/rtl8192e/rtl819x_BAProc.c b/drivers/staging/rtl8192e/rtl819x_BAProc.c
index c04a020..c7fd1b1 100644
--- a/drivers/staging/rtl8192e/rtl819x_BAProc.c
+++ b/drivers/staging/rtl8192e/rtl819x_BAProc.c
@@ -189,7 +189,7 @@ static struct sk_buff *rtllib_DELBA(struct rtllib_device *ieee, u8 *dst,
 static void rtllib_send_ADDBAReq(struct rtllib_device *ieee, u8 *dst,
 				 struct ba_record *pBA)
 {
-	struct sk_buff *skb = NULL;
+	struct sk_buff *skb;
 
 	skb = rtllib_ADDBA(ieee, dst, pBA, 0, ACT_ADDBAREQ);
 
@@ -204,7 +204,7 @@ static void rtllib_send_ADDBAReq(struct rtllib_device *ieee, u8 *dst,
 static void rtllib_send_ADDBARsp(struct rtllib_device *ieee, u8 *dst,
 				 struct ba_record *pBA, u16 StatusCode)
 {
-	struct sk_buff *skb = NULL;
+	struct sk_buff *skb;
 
 	skb = rtllib_ADDBA(ieee, dst, pBA, StatusCode, ACT_ADDBARSP);
 	if (skb)
@@ -217,7 +217,7 @@ static void rtllib_send_DELBA(struct rtllib_device *ieee, u8 *dst,
 			      struct ba_record *pBA, enum tr_select TxRxSelect,
 			      u16 ReasonCode)
 {
-	struct sk_buff *skb = NULL;
+	struct sk_buff *skb;
 
 	skb = rtllib_DELBA(ieee, dst, pBA, TxRxSelect, ReasonCode);
 	if (skb)
diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c
index 37343ec..af64bd3 100644
--- a/drivers/staging/rtl8192e/rtllib_rx.c
+++ b/drivers/staging/rtl8192e/rtllib_rx.c
@@ -905,7 +905,7 @@ static size_t rtllib_rx_get_hdrlen(struct rtllib_device *ieee,
 {
 	struct rtllib_hdr_4addr *hdr = (struct rtllib_hdr_4addr *)skb->data;
 	u16 fc = le16_to_cpu(hdr->frame_ctl);
-	size_t hdrlen = 0;
+	size_t hdrlen;
 
 	hdrlen = rtllib_get_hdrlen(fc);
 	if (HTCCheck(ieee, skb->data)) {
diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index 19c3bff..25b5b5e 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -776,7 +776,7 @@ inline struct sk_buff *rtllib_authentication_req(struct rtllib_network *beacon,
 {
 	struct sk_buff *skb;
 	struct rtllib_authentication *auth;
-	int  len = 0;
+	int  len;
 
 	len = sizeof(struct rtllib_authentication) + challengelen +
 		     ieee->tx_headroom + 4;
diff --git a/drivers/staging/rtl8192e/rtllib_softmac_wx.c b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
index 86f52ac..01a75bd 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
@@ -243,7 +243,7 @@ int rtllib_wx_get_rate(struct rtllib_device *ieee,
 			     struct iw_request_info *info,
 			     union iwreq_data *wrqu, char *extra)
 {
-	u32 tmp_rate = 0;
+	u32 tmp_rate;
 
 	tmp_rate = TxCountToDataRate(ieee,
 				     ieee->softmac_stats.CurrentShowTxate);
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index 9bc5aac..f8041f9d6 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -515,7 +515,7 @@ static void ieee80211_softmac_scan_wq(struct work_struct *work)
 		ieee80211_send_probe_requests(ieee);
 
 
-	queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq, IEEE80211_SOFTMAC_SCAN_TIME);
+	schedule_delayed_work(&ieee->softmac_scan_wq, IEEE80211_SOFTMAC_SCAN_TIME);
 
 	up(&ieee->scan_sem);
 	return;
@@ -614,7 +614,7 @@ static void ieee80211_start_scan(struct ieee80211_device *ieee)
 	if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
 		if (ieee->scanning == 0) {
 			ieee->scanning = 1;
-			queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq, 0);
+			schedule_delayed_work(&ieee->softmac_scan_wq, 0);
 		}
 	}else
 		ieee->start_scan(ieee->dev);
@@ -1241,7 +1241,7 @@ void ieee80211_associate_abort(struct ieee80211_device *ieee)
 
 	ieee->state = IEEE80211_ASSOCIATING_RETRY;
 
-	queue_delayed_work(ieee->wq, &ieee->associate_retry_wq, \
+	schedule_delayed_work(&ieee->associate_retry_wq, \
 			   IEEE80211_SOFTMAC_ASSOC_RETRY_TIME);
 
 	spin_unlock_irqrestore(&ieee->lock, flags);
@@ -1382,7 +1382,7 @@ static void ieee80211_associate_complete(struct ieee80211_device *ieee)
 
 	ieee->state = IEEE80211_LINKED;
 	//ieee->UpdateHalRATRTableHandler(dev, ieee->dot11HTOperationalRateSet);
-	queue_work(ieee->wq, &ieee->associate_complete_wq);
+	schedule_work(&ieee->associate_complete_wq);
 }
 
 static void ieee80211_associate_procedure_wq(struct work_struct *work)
@@ -1483,7 +1483,7 @@ inline void ieee80211_softmac_new_net(struct ieee80211_device *ieee, struct ieee
 					}
 
 					ieee->state = IEEE80211_ASSOCIATING;
-					queue_work(ieee->wq, &ieee->associate_procedure_wq);
+					schedule_work(&ieee->associate_procedure_wq);
 				}else{
 					if(ieee80211_is_54g(&ieee->current_network) &&
 						(ieee->modulation & IEEE80211_OFDM_MODULATION)){
@@ -2044,7 +2044,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 					"Association response status code 0x%x\n",
 					errcode);
 				if(ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT) {
-					queue_work(ieee->wq, &ieee->associate_procedure_wq);
+					schedule_work(&ieee->associate_procedure_wq);
 				} else {
 					ieee80211_associate_abort(ieee);
 				}
@@ -2100,7 +2100,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 			notify_wx_assoc_event(ieee);
 			//HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
 			RemovePeerTS(ieee, header->addr2);
-			queue_work(ieee->wq, &ieee->associate_procedure_wq);
+			schedule_work(&ieee->associate_procedure_wq);
 		}
 		break;
 	case IEEE80211_STYPE_MANAGE_ACT:
@@ -2442,7 +2442,7 @@ static void ieee80211_start_ibss_wq(struct work_struct *work)
 
 inline void ieee80211_start_ibss(struct ieee80211_device *ieee)
 {
-	queue_delayed_work(ieee->wq, &ieee->start_ibss_wq, 150);
+	schedule_delayed_work(&ieee->start_ibss_wq, 150);
 }
 
 /* this is called only in user context, with wx_sem held */
@@ -2725,7 +2725,6 @@ void ieee80211_softmac_init(struct ieee80211_device *ieee)
 	setup_timer(&ieee->beacon_timer, ieee80211_send_beacon_cb,
 		    (unsigned long)ieee);
 
-	ieee->wq = create_workqueue(DRV_NAME);
 
 	INIT_DELAYED_WORK(&ieee->start_ibss_wq, ieee80211_start_ibss_wq);
 	INIT_WORK(&ieee->associate_complete_wq, ieee80211_associate_complete_wq);
@@ -2755,7 +2754,6 @@ void ieee80211_softmac_free(struct ieee80211_device *ieee)
 	del_timer_sync(&ieee->associate_timer);
 
 	cancel_delayed_work(&ieee->associate_retry_wq);
-	destroy_workqueue(ieee->wq);
 
 	up(&ieee->wx_sem);
 }
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 3c58963..3a93218 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -1962,7 +1962,7 @@ static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
 		     network->qos_data.param_count)) {
 			network->qos_data.old_param_count =
 				network->qos_data.param_count;
-			queue_work(priv->priv_wq, &priv->qos_activate);
+			schedule_work(&priv->qos_activate);
 			RT_TRACE(COMP_QOS,
 				 "QoS parameters change call qos_activate\n");
 		}
@@ -1971,7 +1971,7 @@ static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
 		       &def_qos_parameters, size);
 
 		if ((network->qos_data.active == 1) && (active_network == 1)) {
-			queue_work(priv->priv_wq, &priv->qos_activate);
+			schedule_work(&priv->qos_activate);
 			RT_TRACE(COMP_QOS,
 				 "QoS was disabled call qos_activate\n");
 		}
@@ -1990,7 +1990,7 @@ static int rtl8192_handle_beacon(struct net_device *dev,
 	struct r8192_priv *priv = ieee80211_priv(dev);
 
 	rtl8192_qos_handle_probe_response(priv, 1, network);
-	queue_delayed_work(priv->priv_wq, &priv->update_beacon_wq, 0);
+	schedule_delayed_work(&priv->update_beacon_wq, 0);
 	return 0;
 
 }
@@ -2042,7 +2042,7 @@ static int rtl8192_qos_association_resp(struct r8192_priv *priv,
 		 network->flags,
 		 priv->ieee80211->current_network.qos_data.active);
 	if (set_qos_param == 1)
-		queue_work(priv->priv_wq, &priv->qos_activate);
+		schedule_work(&priv->qos_activate);
 
 
 	return 0;
@@ -2387,7 +2387,6 @@ static void rtl8192_init_priv_task(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
 
-	priv->priv_wq = create_workqueue(DRV_NAME);
 
 	INIT_WORK(&priv->reset_wq, rtl8192_restart);
 
@@ -3518,7 +3517,7 @@ static void watch_dog_timer_callback(unsigned long data)
 {
 	struct r8192_priv *priv = ieee80211_priv((struct net_device *)data);
 
-	queue_delayed_work(priv->priv_wq, &priv->watch_dog_wq, 0);
+	schedule_delayed_work(&priv->watch_dog_wq, 0);
 	mod_timer(&priv->watch_dog_timer,
 		  jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME));
 }
@@ -5022,7 +5021,6 @@ fail2:
 	kfree(priv->pFirmware);
 	priv->pFirmware = NULL;
 	rtl8192_usb_deleteendpoints(dev);
-	destroy_workqueue(priv->priv_wq);
 	mdelay(10);
 fail:
 	free_ieee80211(dev);
@@ -5060,7 +5058,6 @@ static void rtl8192_usb_disconnect(struct usb_interface *intf)
 		kfree(priv->pFirmware);
 		priv->pFirmware = NULL;
 		rtl8192_usb_deleteendpoints(dev);
-		destroy_workqueue(priv->priv_wq);
 		mdelay(10);
 	}
 	free_ieee80211(dev);
diff --git a/drivers/staging/rtl8192u/r8192U_dm.c b/drivers/staging/rtl8192u/r8192U_dm.c
index d2e86b9..1e0e53c 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.c
+++ b/drivers/staging/rtl8192u/r8192U_dm.c
@@ -1628,47 +1628,75 @@ static void dm_bb_initialgain_backup(struct net_device *dev)
 void dm_change_dynamic_initgain_thresh(struct net_device *dev, u32 dm_type,
 				       u32 dm_value)
 {
-	if (dm_type == DIG_TYPE_THRESH_HIGH) {
+	switch (dm_type) {
+	case DIG_TYPE_THRESH_HIGH:
 		dm_digtable.rssi_high_thresh = dm_value;
-	} else if (dm_type == DIG_TYPE_THRESH_LOW) {
+		break;
+
+	case  DIG_TYPE_THRESH_LOW:
 		dm_digtable.rssi_low_thresh = dm_value;
-	} else if (dm_type == DIG_TYPE_THRESH_HIGHPWR_HIGH) {
+		break;
+
+	case  DIG_TYPE_THRESH_HIGHPWR_HIGH:
 		dm_digtable.rssi_high_power_highthresh = dm_value;
-	} else if (dm_type == DIG_TYPE_THRESH_HIGHPWR_LOW) {
+		break;
+
+	case DIG_TYPE_THRESH_HIGHPWR_LOW:
 		dm_digtable.rssi_high_power_lowthresh = dm_value;
-	} else if (dm_type == DIG_TYPE_ENABLE) {
+		break;
+
+	case DIG_TYPE_ENABLE:
 		dm_digtable.dig_state		= DM_STA_DIG_MAX;
 		dm_digtable.dig_enable_flag	= true;
-	} else if (dm_type == DIG_TYPE_DISABLE) {
+		break;
+
+	case DIG_TYPE_DISABLE:
 		dm_digtable.dig_state		= DM_STA_DIG_MAX;
 		dm_digtable.dig_enable_flag	= false;
-	} else if (dm_type == DIG_TYPE_DBG_MODE) {
+		break;
+
+	case DIG_TYPE_DBG_MODE:
 		if (dm_value >= DM_DBG_MAX)
 			dm_value = DM_DBG_OFF;
 		dm_digtable.dbg_mode		= (u8)dm_value;
-	} else if (dm_type == DIG_TYPE_RSSI) {
+		break;
+
+	case DIG_TYPE_RSSI:
 		if (dm_value > 100)
 			dm_value = 30;
 		dm_digtable.rssi_val			= (long)dm_value;
-	} else if (dm_type == DIG_TYPE_ALGORITHM) {
+		break;
+
+	case DIG_TYPE_ALGORITHM:
 		if (dm_value >= DIG_ALGO_MAX)
 			dm_value = DIG_ALGO_BY_FALSE_ALARM;
 		if (dm_digtable.dig_algorithm != (u8)dm_value)
 			dm_digtable.dig_algorithm_switch = 1;
 		dm_digtable.dig_algorithm	= (u8)dm_value;
-	} else if (dm_type == DIG_TYPE_BACKOFF) {
+		break;
+
+	case DIG_TYPE_BACKOFF:
 		if (dm_value > 30)
 			dm_value = 30;
 		dm_digtable.backoff_val		= (u8)dm_value;
-	} else if (dm_type == DIG_TYPE_RX_GAIN_MIN) {
+		break;
+
+	case DIG_TYPE_RX_GAIN_MIN:
 		if (dm_value == 0)
 			dm_value = 0x1;
 		dm_digtable.rx_gain_range_min = (u8)dm_value;
-	} else if (dm_type == DIG_TYPE_RX_GAIN_MAX) {
+		break;
+
+	case DIG_TYPE_RX_GAIN_MAX:
 		if (dm_value > 0x50)
 			dm_value = 0x50;
 		dm_digtable.rx_gain_range_max = (u8)dm_value;
+		break;
+
+	default:
+		break;
 	}
+
 }	/* DM_ChangeDynamicInitGainThresh */
 
 /*-----------------------------------------------------------------------------
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
index db2e31bc..a15f3ce 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
@@ -137,7 +137,7 @@ static inline void handle_group_key(struct ieee_param *param,
 	}
 }
 
-static inline char *translate_scan(struct _adapter *padapter,
+static noinline_for_stack char *translate_scan(struct _adapter *padapter,
 				   struct iw_request_info *info,
 				   struct wlan_network *pnetwork,
 				   char *start, char *stop)
diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index b64f10b..f1d3d70 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -221,7 +221,7 @@ static int r871x_suspend(struct usb_interface *pusb_intf, pm_message_t state)
 	return 0;
 }
 
-void rtl871x_intf_resume(struct _adapter *padapter)
+static void rtl871x_intf_resume(struct _adapter *padapter)
 {
 	if (padapter->dvobjpriv.inirp_init)
 		padapter->dvobjpriv.inirp_init(padapter);
diff --git a/drivers/staging/rtl8712/usb_ops_linux.c b/drivers/staging/rtl8712/usb_ops_linux.c
index e77be2a..c2ac581 100644
--- a/drivers/staging/rtl8712/usb_ops_linux.c
+++ b/drivers/staging/rtl8712/usb_ops_linux.c
@@ -228,16 +228,18 @@ static void r8712_usb_read_port_complete(struct urb *purb)
 		}
 	} else {
 		switch (purb->status) {
-		case -ENOENT:
-			if (padapter->bSuspended)
-				break;
-			/* Fall through. */
 		case -EINVAL:
 		case -EPIPE:
 		case -ENODEV:
 		case -ESHUTDOWN:
 			padapter->bDriverStopped = true;
 			break;
+		case -ENOENT:
+			if (!padapter->bSuspended) {
+				padapter->bDriverStopped = true;
+				break;
+			}
+			/* Fall through. */
 		case -EPROTO:
 			precvbuf->reuse = true;
 			r8712_read_port(padapter, precvpriv->ff_hwaddr, 0,
diff --git a/drivers/staging/rtl8712/xmit_linux.c b/drivers/staging/rtl8712/xmit_linux.c
index d398183..f8866d7 100644
--- a/drivers/staging/rtl8712/xmit_linux.c
+++ b/drivers/staging/rtl8712/xmit_linux.c
@@ -131,7 +131,7 @@ int r8712_xmit_resource_alloc(struct _adapter *padapter,
 
 	for (i = 0; i < 8; i++) {
 		pxmitbuf->pxmit_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
-		if (pxmitbuf->pxmit_urb[i] == NULL) {
+		if (!pxmitbuf->pxmit_urb[i]) {
 			netdev_err(padapter->pnetdev, "pxmitbuf->pxmit_urb[i] == NULL\n");
 			return _FAIL;
 		}
@@ -171,7 +171,7 @@ int r8712_xmit_entry(_pkt *pkt, struct  net_device *pnetdev)
 		goto _xmit_entry_drop;
 	}
 	pxmitframe = r8712_alloc_xmitframe(pxmitpriv);
-	if (pxmitframe == NULL) {
+	if (!pxmitframe) {
 		ret = 0;
 		goto _xmit_entry_drop;
 	}
diff --git a/drivers/staging/rtl8723au/core/rtw_ap.c b/drivers/staging/rtl8723au/core/rtw_ap.c
index 1aa9b26..ce4b589 100644
--- a/drivers/staging/rtl8723au/core/rtw_ap.c
+++ b/drivers/staging/rtl8723au/core/rtw_ap.c
@@ -171,24 +171,20 @@ static u8 chk_sta_is_alive(struct sta_info *psta)
 	return ret;
 }
 
-void	expire_timeout_chk23a(struct rtw_adapter *padapter)
+void expire_timeout_chk23a(struct rtw_adapter *padapter)
 {
-	struct list_head *phead, *plist, *ptmp;
+	struct list_head *phead;
 	u8 updated = 0;
-	struct sta_info *psta;
+	struct sta_info *psta, *ptmp;
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	u8 chk_alive_num = 0;
 	struct sta_info *chk_alive_list[NUM_STA];
 	int i;
 
 	spin_lock_bh(&pstapriv->auth_list_lock);
-
 	phead = &pstapriv->auth_list;
-
 	/* check auth_queue */
-	list_for_each_safe(plist, ptmp, phead) {
-		psta = container_of(plist, struct sta_info, auth_list);
-
+	list_for_each_entry_safe(psta, ptmp, phead, auth_list) {
 		if (psta->expire_to > 0) {
 			psta->expire_to--;
 			if (psta->expire_to == 0) {
@@ -206,19 +202,13 @@ void	expire_timeout_chk23a(struct rtw_adapter *padapter)
 				spin_lock_bh(&pstapriv->auth_list_lock);
 			}
 		}
-
 	}
-
 	spin_unlock_bh(&pstapriv->auth_list_lock);
 
 	spin_lock_bh(&pstapriv->asoc_list_lock);
-
 	phead = &pstapriv->asoc_list;
-
 	/* check asoc_queue */
-	list_for_each_safe(plist, ptmp, phead) {
-		psta = container_of(plist, struct sta_info, asoc_list);
-
+	list_for_each_entry_safe(psta, ptmp, phead, asoc_list) {
 		if (chk_sta_is_alive(psta) || !psta->expire_to) {
 			psta->expire_to = pstapriv->expire_to;
 			psta->keep_alive_trycnt = 0;
@@ -283,7 +273,6 @@ void	expire_timeout_chk23a(struct rtw_adapter *padapter)
 			}
 		}
 	}
-
 	spin_unlock_bh(&pstapriv->asoc_list_lock);
 
 	if (chk_alive_num) {
@@ -1059,7 +1048,7 @@ void rtw_set_macaddr_acl23a(struct rtw_adapter *padapter, int mode)
 
 int rtw_acl_add_sta23a(struct rtw_adapter *padapter, u8 *addr)
 {
-	struct list_head *plist, *phead;
+	struct list_head *phead;
 	u8 added = false;
 	int i, ret = 0;
 	struct rtw_wlan_acl_node *paclnode;
@@ -1073,12 +1062,8 @@ int rtw_acl_add_sta23a(struct rtw_adapter *padapter, u8 *addr)
 		return -1;
 
 	spin_lock_bh(&pacl_node_q->lock);
-
 	phead = get_list_head(pacl_node_q);
-
-	list_for_each(plist, phead) {
-		paclnode = container_of(plist, struct rtw_wlan_acl_node, list);
-
+	list_for_each_entry(paclnode, phead, list) {
 		if (!memcmp(paclnode->addr, addr, ETH_ALEN)) {
 			if (paclnode->valid == true) {
 				added = true;
@@ -1087,7 +1072,6 @@ int rtw_acl_add_sta23a(struct rtw_adapter *padapter, u8 *addr)
 			}
 		}
 	}
-
 	spin_unlock_bh(&pacl_node_q->lock);
 
 	if (added)
@@ -1121,8 +1105,8 @@ int rtw_acl_add_sta23a(struct rtw_adapter *padapter, u8 *addr)
 
 int rtw_acl_remove_sta23a(struct rtw_adapter *padapter, u8 *addr)
 {
-	struct list_head *plist, *phead, *ptmp;
-	struct rtw_wlan_acl_node *paclnode;
+	struct list_head *phead;
+	struct rtw_wlan_acl_node *paclnode, *ptmp;
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	struct wlan_acl_pool *pacl_list = &pstapriv->acl_list;
 	struct rtw_queue *pacl_node_q = &pacl_list->acl_node_q;
@@ -1130,12 +1114,8 @@ int rtw_acl_remove_sta23a(struct rtw_adapter *padapter, u8 *addr)
 	DBG_8723A("%s(acl_num =%d) = %pM\n", __func__, pacl_list->num, addr);
 
 	spin_lock_bh(&pacl_node_q->lock);
-
 	phead = get_list_head(pacl_node_q);
-
-	list_for_each_safe(plist, ptmp, phead) {
-		paclnode = container_of(plist, struct rtw_wlan_acl_node, list);
-
+	list_for_each_entry_safe(paclnode, ptmp, phead, list) {
 		if (!memcmp(paclnode->addr, addr, ETH_ALEN)) {
 			if (paclnode->valid) {
 				paclnode->valid = false;
@@ -1146,7 +1126,6 @@ int rtw_acl_remove_sta23a(struct rtw_adapter *padapter, u8 *addr)
 			}
 		}
 	}
-
 	spin_unlock_bh(&pacl_node_q->lock);
 
 	DBG_8723A("%s, acl_num =%d\n", __func__, pacl_list->num);
@@ -1354,20 +1333,14 @@ void associated_clients_update23a(struct rtw_adapter *padapter, u8 updated)
 {
 	/* update associated stations cap. */
 	if (updated == true) {
-		struct list_head *phead, *plist, *ptmp;
-		struct sta_info *psta;
+		struct list_head *phead;
+		struct sta_info *psta, *ptmp;
 		struct sta_priv *pstapriv = &padapter->stapriv;
 
 		spin_lock_bh(&pstapriv->asoc_list_lock);
-
 		phead = &pstapriv->asoc_list;
-
-		list_for_each_safe(plist, ptmp, phead) {
-			psta = container_of(plist, struct sta_info, asoc_list);
-
+		list_for_each_entry_safe(psta, ptmp, phead, asoc_list)
 			VCS_update23a(padapter, psta);
-		}
-
 		spin_unlock_bh(&pstapriv->asoc_list_lock);
 	}
 }
@@ -1627,7 +1600,7 @@ u8 ap_free_sta23a(struct rtw_adapter *padapter, struct sta_info *psta, bool acti
 
 int rtw_ap_inform_ch_switch23a(struct rtw_adapter *padapter, u8 new_ch, u8 ch_offset)
 {
-	struct list_head *phead, *plist;
+	struct list_head *phead;
 	struct sta_info *psta = NULL;
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
@@ -1642,10 +1615,7 @@ int rtw_ap_inform_ch_switch23a(struct rtw_adapter *padapter, u8 new_ch, u8 ch_of
 
 	spin_lock_bh(&pstapriv->asoc_list_lock);
 	phead = &pstapriv->asoc_list;
-
-	list_for_each(plist, phead) {
-		psta = container_of(plist, struct sta_info, asoc_list);
-
+	list_for_each_entry(psta, phead, asoc_list) {
 		issue_action_spct_ch_switch23a(padapter, psta->hwaddr, new_ch, ch_offset);
 		psta->expire_to = ((pstapriv->expire_to * 2) > 5) ? 5 : (pstapriv->expire_to * 2);
 	}
@@ -1658,8 +1628,8 @@ int rtw_ap_inform_ch_switch23a(struct rtw_adapter *padapter, u8 new_ch, u8 ch_of
 
 int rtw_sta_flush23a(struct rtw_adapter *padapter)
 {
-	struct list_head *phead, *plist, *ptmp;
-	struct sta_info *psta;
+	struct list_head *phead;
+	struct sta_info *psta, *ptmp;
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 	struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
@@ -1675,10 +1645,7 @@ int rtw_sta_flush23a(struct rtw_adapter *padapter)
 
 	spin_lock_bh(&pstapriv->asoc_list_lock);
 	phead = &pstapriv->asoc_list;
-
-	list_for_each_safe(plist, ptmp, phead) {
-		psta = container_of(plist, struct sta_info, asoc_list);
-
+	list_for_each_entry_safe(psta, ptmp, phead, asoc_list) {
 		/* Remove sta from asoc_list */
 		list_del_init(&psta->asoc_list);
 		pstapriv->asoc_list_cnt--;
@@ -1744,9 +1711,9 @@ void rtw_ap_restore_network(struct rtw_adapter *padapter)
 	struct mlme_priv *mlmepriv = &padapter->mlmepriv;
 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 	struct sta_priv *pstapriv = &padapter->stapriv;
-	struct sta_info *psta;
+	struct sta_info *psta, *ptmp;
 	struct security_priv *psecuritypriv = &padapter->securitypriv;
-	struct list_head *phead, *plist, *ptmp;
+	struct list_head *phead;
 	u8 chk_alive_num = 0;
 	struct sta_info *chk_alive_list[NUM_STA];
 	int i;
@@ -1775,15 +1742,9 @@ void rtw_ap_restore_network(struct rtw_adapter *padapter)
 	}
 
 	spin_lock_bh(&pstapriv->asoc_list_lock);
-
 	phead = &pstapriv->asoc_list;
-
-	list_for_each_safe(plist, ptmp, phead) {
-		psta = container_of(plist, struct sta_info, asoc_list);
-
+	list_for_each_entry_safe(psta, ptmp, phead, asoc_list)
 		chk_alive_list[chk_alive_num++] = psta;
-	}
-
 	spin_unlock_bh(&pstapriv->asoc_list_lock);
 
 	for (i = 0; i < chk_alive_num; i++) {
@@ -1841,8 +1802,8 @@ void start_ap_mode23a(struct rtw_adapter *padapter)
 
 void stop_ap_mode23a(struct rtw_adapter *padapter)
 {
-	struct list_head *phead, *plist, *ptmp;
-	struct rtw_wlan_acl_node *paclnode;
+	struct list_head *phead;
+	struct rtw_wlan_acl_node *paclnode, *ptmp;
 	struct sta_info *psta = NULL;
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
@@ -1864,15 +1825,10 @@ void stop_ap_mode23a(struct rtw_adapter *padapter)
 	/* for ACL */
 	spin_lock_bh(&pacl_node_q->lock);
 	phead = get_list_head(pacl_node_q);
-
-	list_for_each_safe(plist, ptmp, phead) {
-		paclnode = container_of(plist, struct rtw_wlan_acl_node, list);
-
+	list_for_each_entry_safe(paclnode, ptmp, phead, list) {
 		if (paclnode->valid == true) {
 			paclnode->valid = false;
-
 			list_del_init(&paclnode->list);
-
 			pacl_list->num--;
 		}
 	}
diff --git a/drivers/staging/rtl8723au/core/rtw_mlme.c b/drivers/staging/rtl8723au/core/rtw_mlme.c
index 3c09ea9..3adda55 100644
--- a/drivers/staging/rtl8723au/core/rtw_mlme.c
+++ b/drivers/staging/rtl8723au/core/rtw_mlme.c
@@ -171,21 +171,15 @@ exit:
 
 void rtw_free_network_queue23a(struct rtw_adapter *padapter)
 {
-	struct list_head *phead, *plist, *ptmp;
-	struct wlan_network *pnetwork;
+	struct list_head *phead;
+	struct wlan_network *pnetwork, *ptmp;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct rtw_queue *scanned_queue = &pmlmepriv->scanned_queue;
 
 	spin_lock_bh(&scanned_queue->lock);
-
 	phead = get_list_head(scanned_queue);
-
-	list_for_each_safe(plist, ptmp, phead) {
-		pnetwork = container_of(plist, struct wlan_network, list);
-
+	list_for_each_entry_safe(pnetwork, ptmp, phead, list)
 		_rtw_free_network23a(pmlmepriv, pnetwork);
-	}
-
 	spin_unlock_bh(&scanned_queue->lock);
 }
 
@@ -329,15 +323,12 @@ int is_same_network23a(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst)
 struct wlan_network *
 rtw_get_oldest_wlan_network23a(struct rtw_queue *scanned_queue)
 {
-	struct list_head *plist, *phead;
+	struct list_head *phead;
 	struct wlan_network *pwlan;
 	struct wlan_network *oldest = NULL;
 
 	phead = get_list_head(scanned_queue);
-
-	list_for_each(plist, phead) {
-		pwlan = container_of(plist, struct wlan_network, list);
-
+	list_for_each_entry(pwlan, phead, list) {
 		if (pwlan->fixed != true) {
 			if (!oldest || time_after(oldest->last_scanned,
 						  pwlan->last_scanned))
@@ -445,7 +436,6 @@ static void rtw_update_scanned_network(struct rtw_adapter *adapter,
 
 	spin_lock_bh(&queue->lock);
 	phead = get_list_head(queue);
-
 	list_for_each(plist, phead) {
 		pnetwork = container_of(plist, struct wlan_network, list);
 
@@ -710,21 +700,17 @@ rtw_surveydone_event_callback23a(struct rtw_adapter *adapter, const u8 *pbuf)
 
 static void free_scanqueue(struct mlme_priv *pmlmepriv)
 {
-	struct wlan_network *pnetwork;
+	struct wlan_network *pnetwork, *ptemp;
 	struct rtw_queue *scan_queue = &pmlmepriv->scanned_queue;
-	struct list_head *plist, *phead, *ptemp;
+	struct list_head *phead;
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, "+free_scanqueue\n");
 	spin_lock_bh(&scan_queue->lock);
-
 	phead = get_list_head(scan_queue);
-
-	list_for_each_safe(plist, ptemp, phead) {
-		pnetwork = container_of(plist, struct wlan_network, list);
+	list_for_each_entry_safe(pnetwork, ptemp, phead, list) {
 		pnetwork->fixed = false;
 		_rtw_free_network23a(pmlmepriv, pnetwork);
 	}
-
 	spin_unlock_bh(&scan_queue->lock);
 }
 
@@ -1625,15 +1611,13 @@ exit:
 static struct wlan_network *
 rtw_select_candidate_from_queue(struct mlme_priv *pmlmepriv)
 {
-	struct wlan_network *pnetwork, *candidate = NULL;
+	struct wlan_network *pnetwork, *ptmp, *candidate = NULL;
 	struct rtw_queue *queue = &pmlmepriv->scanned_queue;
-	struct list_head *phead, *plist, *ptmp;
+	struct list_head *phead;
 
 	spin_lock_bh(&pmlmepriv->scanned_queue.lock);
 	phead = get_list_head(queue);
-
-	list_for_each_safe(plist, ptmp, phead) {
-		pnetwork = container_of(plist, struct wlan_network, list);
+	list_for_each_entry_safe(pnetwork, ptmp, phead, list) {
 		if (!pnetwork) {
 			RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
 				 "%s: return _FAIL:(pnetwork == NULL)\n",
diff --git a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
index a39e441..f4fff38 100644
--- a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
@@ -6061,10 +6061,10 @@ int tx_beacon_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf)
 #ifdef CONFIG_8723AU_AP_MODE
 	else { /* tx bc/mc frames after update TIM */
 		struct sta_info *psta_bmc;
-		struct list_head *plist, *phead, *ptmp;
-		struct xmit_frame *pxmitframe;
+		struct list_head *phead;
+		struct xmit_frame *pxmitframe, *ptmp;
 		struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
-		struct sta_priv  *pstapriv = &padapter->stapriv;
+		struct sta_priv *pstapriv = &padapter->stapriv;
 
 		/* for BC/MC Frames */
 		psta_bmc = rtw_get_bcmc_stainfo23a(padapter);
@@ -6078,10 +6078,8 @@ int tx_beacon_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf)
 
 			phead = get_list_head(&psta_bmc->sleep_q);
 
-			list_for_each_safe(plist, ptmp, phead) {
-				pxmitframe = container_of(plist,
-							  struct xmit_frame,
-							  list);
+			list_for_each_entry_safe(pxmitframe, ptmp,
+						 phead, list) {
 
 				list_del_init(&pxmitframe->list);
 
@@ -6098,7 +6096,6 @@ int tx_beacon_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf)
 				rtl8723au_hal_xmitframe_enqueue(padapter,
 								pxmitframe);
 			}
-
 			/* spin_unlock_bh(&psta_bmc->sleep_q.lock); */
 			spin_unlock_bh(&pxmitpriv->lock);
 		}
diff --git a/drivers/staging/rtl8723au/core/rtw_recv.c b/drivers/staging/rtl8723au/core/rtw_recv.c
index 81abe50..0a7741c 100644
--- a/drivers/staging/rtl8723au/core/rtw_recv.c
+++ b/drivers/staging/rtl8723au/core/rtw_recv.c
@@ -85,16 +85,15 @@ int _rtw_init_recv_priv23a(struct recv_priv *precvpriv,
 	return res;
 }
 
-void _rtw_free_recv_priv23a (struct recv_priv *precvpriv)
+void _rtw_free_recv_priv23a(struct recv_priv *precvpriv)
 {
 	struct rtw_adapter *padapter = precvpriv->adapter;
-	struct recv_frame *precvframe;
-	struct list_head *plist, *ptmp;
+	struct recv_frame *precvframe, *ptmp;
 
 	rtw_free_uc_swdec_pending_queue23a(padapter);
 
-	list_for_each_safe(plist, ptmp, &precvpriv->free_recv_queue.queue) {
-		precvframe = container_of(plist, struct recv_frame, list);
+	list_for_each_entry_safe(precvframe, ptmp,
+				 &precvpriv->free_recv_queue.queue, list) {
 		list_del_init(&precvframe->list);
 		kfree(precvframe);
 	}
@@ -195,19 +194,13 @@ using spinlock to protect
 
 static void rtw_free_recvframe23a_queue(struct rtw_queue *pframequeue)
 {
-	struct recv_frame *hdr;
-	struct list_head *plist, *phead, *ptmp;
+	struct recv_frame *hdr, *ptmp;
+	struct list_head *phead;
 
 	spin_lock(&pframequeue->lock);
-
 	phead = get_list_head(pframequeue);
-	plist = phead->next;
-
-	list_for_each_safe(plist, ptmp, phead) {
-		hdr = container_of(plist, struct recv_frame, list);
+	list_for_each_entry_safe(hdr, ptmp, phead, list)
 		rtw_free_recvframe23a(hdr);
-	}
-
 	spin_unlock(&pframequeue->lock);
 }
 
@@ -1549,16 +1542,14 @@ struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter,
 struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter,
 				    struct rtw_queue *defrag_q)
 {
-	struct list_head *plist, *phead, *ptmp;
-	u8	*data, wlanhdr_offset;
-	u8	curfragnum;
-	struct recv_frame *pnfhdr;
+	struct list_head *plist, *phead;
+	u8 wlanhdr_offset;
+	u8 curfragnum;
+	struct recv_frame *pnfhdr, *ptmp;
 	struct recv_frame *prframe, *pnextrframe;
-	struct rtw_queue	*pfree_recv_queue;
+	struct rtw_queue *pfree_recv_queue;
 	struct sk_buff *skb;
 
-
-
 	curfragnum = 0;
 	pfree_recv_queue = &adapter->recvpriv.free_recv_queue;
 
@@ -1579,12 +1570,7 @@ struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter,
 
 	curfragnum++;
 
-	phead = get_list_head(defrag_q);
-
-	data = prframe->pkt->data;
-
-	list_for_each_safe(plist, ptmp, phead) {
-		pnfhdr = container_of(plist, struct recv_frame, list);
+	list_for_each_entry_safe(pnfhdr, ptmp, phead, list) {
 		pnextrframe = (struct recv_frame *)pnfhdr;
 		/* check the fragment sequence  (2nd ~n fragment frame) */
 
@@ -1626,8 +1612,6 @@ struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter,
 	RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
 		 "Performance defrag!!!!!\n");
 
-
-
 	return prframe;
 }
 
diff --git a/drivers/staging/rtl8723au/core/rtw_sta_mgt.c b/drivers/staging/rtl8723au/core/rtw_sta_mgt.c
index b06bff7..22d857b 100644
--- a/drivers/staging/rtl8723au/core/rtw_sta_mgt.c
+++ b/drivers/staging/rtl8723au/core/rtw_sta_mgt.c
@@ -83,8 +83,8 @@ int _rtw_init_sta_priv23a(struct sta_priv *pstapriv)
 
 int _rtw_free_sta_priv23a(struct sta_priv *pstapriv)
 {
-	struct list_head *phead, *plist, *ptmp;
-	struct sta_info *psta;
+	struct list_head *phead;
+	struct sta_info *psta, *ptmp;
 	struct recv_reorder_ctrl *preorder_ctrl;
 	int index;
 
@@ -93,12 +93,9 @@ int _rtw_free_sta_priv23a(struct sta_priv *pstapriv)
 		spin_lock_bh(&pstapriv->sta_hash_lock);
 		for (index = 0; index < NUM_STA; index++) {
 			phead = &pstapriv->sta_hash[index];
-
-			list_for_each_safe(plist, ptmp, phead) {
+			list_for_each_entry_safe(psta, ptmp, phead, hash_list) {
 				int i;
 
-				psta = container_of(plist, struct sta_info,
-						    hash_list);
 				for (i = 0; i < 16 ; i++) {
 					preorder_ctrl = &psta->recvreorder_ctrl[i];
 					del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
@@ -325,8 +322,8 @@ exit:
 /*  free all stainfo which in sta_hash[all] */
 void rtw_free_all_stainfo23a(struct rtw_adapter *padapter)
 {
-	struct list_head *plist, *phead, *ptmp;
-	struct sta_info *psta;
+	struct list_head *phead;
+	struct sta_info *psta, *ptmp;
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	struct sta_info *pbcmc_stainfo = rtw_get_bcmc_stainfo23a(padapter);
 	s32 index;
@@ -335,13 +332,9 @@ void rtw_free_all_stainfo23a(struct rtw_adapter *padapter)
 		return;
 
 	spin_lock_bh(&pstapriv->sta_hash_lock);
-
 	for (index = 0; index < NUM_STA; index++) {
 		phead = &pstapriv->sta_hash[index];
-
-		list_for_each_safe(plist, ptmp, phead) {
-			psta = container_of(plist, struct sta_info, hash_list);
-
+		list_for_each_entry_safe(psta, ptmp, phead, hash_list) {
 			if (pbcmc_stainfo != psta)
 				rtw_free_stainfo23a(padapter, psta);
 		}
@@ -352,9 +345,9 @@ void rtw_free_all_stainfo23a(struct rtw_adapter *padapter)
 /* any station allocated can be searched by hash list */
 struct sta_info *rtw_get_stainfo23a(struct sta_priv *pstapriv, const u8 *hwaddr)
 {
-	struct list_head *plist, *phead;
+	struct list_head *phead;
 	struct sta_info *psta = NULL;
-	u32	index;
+	u32 index;
 	const u8 *addr;
 
 	if (hwaddr == NULL)
@@ -368,12 +361,8 @@ struct sta_info *rtw_get_stainfo23a(struct sta_priv *pstapriv, const u8 *hwaddr)
 	index = wifi_mac_hash(addr);
 
 	spin_lock_bh(&pstapriv->sta_hash_lock);
-
 	phead = &pstapriv->sta_hash[index];
-
-	list_for_each(plist, phead) {
-		psta = container_of(plist, struct sta_info, hash_list);
-
+	list_for_each_entry(psta, phead, hash_list) {
 		/*  if found the matched address */
 		if (ether_addr_equal(psta->hwaddr, addr))
 			break;
@@ -418,7 +407,7 @@ bool rtw_access_ctrl23a(struct rtw_adapter *padapter, u8 *mac_addr)
 {
 	bool res = true;
 #ifdef CONFIG_8723AU_AP_MODE
-	struct list_head *plist, *phead;
+	struct list_head *phead;
 	struct rtw_wlan_acl_node *paclnode;
 	bool match = false;
 	struct sta_priv *pstapriv = &padapter->stapriv;
@@ -427,10 +416,7 @@ bool rtw_access_ctrl23a(struct rtw_adapter *padapter, u8 *mac_addr)
 
 	spin_lock_bh(&pacl_node_q->lock);
 	phead = get_list_head(pacl_node_q);
-
-	list_for_each(plist, phead) {
-		paclnode = container_of(plist, struct rtw_wlan_acl_node, list);
-
+	list_for_each_entry(paclnode, phead, list) {
 		if (ether_addr_equal(paclnode->addr, mac_addr)) {
 			if (paclnode->valid) {
 				match = true;
diff --git a/drivers/staging/rtl8723au/core/rtw_xmit.c b/drivers/staging/rtl8723au/core/rtw_xmit.c
index a4b6bb6..b82b182 100644
--- a/drivers/staging/rtl8723au/core/rtw_xmit.c
+++ b/drivers/staging/rtl8723au/core/rtw_xmit.c
@@ -193,39 +193,38 @@ fail:
 	goto exit;
 }
 
-void _rtw_free_xmit_priv23a (struct xmit_priv *pxmitpriv)
+void _rtw_free_xmit_priv23a(struct xmit_priv *pxmitpriv)
 {
 	struct rtw_adapter *padapter = pxmitpriv->adapter;
-	struct xmit_frame *pxframe;
-	struct xmit_buf *pxmitbuf;
-	struct list_head *plist, *ptmp;
+	struct xmit_frame *pxframe, *ptmp;
+	struct xmit_buf *pxmitbuf, *ptmp2;
 
-	list_for_each_safe(plist, ptmp, &pxmitpriv->free_xmit_queue.queue) {
-		pxframe = container_of(plist, struct xmit_frame, list);
+	list_for_each_entry_safe(pxframe, ptmp,
+				 &pxmitpriv->free_xmit_queue.queue, list) {
 		list_del_init(&pxframe->list);
 		rtw_os_xmit_complete23a(padapter, pxframe);
 		kfree(pxframe);
 	}
 
-	list_for_each_safe(plist, ptmp, &pxmitpriv->xmitbuf_list) {
-		pxmitbuf = container_of(plist, struct xmit_buf, list2);
+	list_for_each_entry_safe(pxmitbuf, ptmp2,
+				 &pxmitpriv->xmitbuf_list, list2) {
 		list_del_init(&pxmitbuf->list2);
 		rtw_os_xmit_resource_free23a(padapter, pxmitbuf);
 		kfree(pxmitbuf);
 	}
 
 	/* free xframe_ext queue,  the same count as extbuf  */
-	list_for_each_safe(plist, ptmp,
-			   &pxmitpriv->free_xframe_ext_queue.queue) {
-		pxframe = container_of(plist, struct xmit_frame, list);
+	list_for_each_entry_safe(pxframe, ptmp,
+				 &pxmitpriv->free_xframe_ext_queue.queue,
+				 list) {
 		list_del_init(&pxframe->list);
 		rtw_os_xmit_complete23a(padapter, pxframe);
 		kfree(pxframe);
 	}
 
 	/*  free xmit extension buff */
-	list_for_each_safe(plist, ptmp, &pxmitpriv->xmitextbuf_list) {
-		pxmitbuf = container_of(plist, struct xmit_buf, list2);
+	list_for_each_entry_safe(pxmitbuf, ptmp2,
+				 &pxmitpriv->xmitextbuf_list, list2) {
 		list_del_init(&pxmitbuf->list2);
 		rtw_os_xmit_resource_free23a(padapter, pxmitbuf);
 		kfree(pxmitbuf);
@@ -1563,18 +1562,13 @@ exit:
 void rtw_free_xmitframe_queue23a(struct xmit_priv *pxmitpriv,
 				 struct rtw_queue *pframequeue)
 {
-	struct list_head *plist, *phead, *ptmp;
-	struct	xmit_frame *pxmitframe;
+	struct list_head *phead;
+	struct xmit_frame *pxmitframe, *ptmp;
 
 	spin_lock_bh(&pframequeue->lock);
-
 	phead = get_list_head(pframequeue);
-
-	list_for_each_safe(plist, ptmp, phead) {
-		pxmitframe = container_of(plist, struct xmit_frame, list);
-
+	list_for_each_entry_safe(pxmitframe, ptmp, phead, list)
 		rtw_free_xmitframe23a(pxmitpriv, pxmitframe);
-	}
 	spin_unlock_bh(&pframequeue->lock);
 
 }
@@ -1612,9 +1606,9 @@ struct xmit_frame *
 rtw_dequeue_xframe23a(struct xmit_priv *pxmitpriv, struct hw_xmit *phwxmit_i,
 		   int entry)
 {
-	struct list_head *sta_plist, *sta_phead, *ptmp;
+	struct list_head *sta_phead;
 	struct hw_xmit *phwxmit;
-	struct tx_servq *ptxservq = NULL;
+	struct tx_servq *ptxservq = NULL, *ptmp;
 	struct rtw_queue *pframe_queue = NULL;
 	struct xmit_frame *pxmitframe = NULL;
 	struct rtw_adapter *padapter = pxmitpriv->adapter;
@@ -1638,11 +1632,8 @@ rtw_dequeue_xframe23a(struct xmit_priv *pxmitpriv, struct hw_xmit *phwxmit_i,
 		phwxmit = phwxmit_i + inx[i];
 
 		sta_phead = get_list_head(phwxmit->sta_queue);
-
-		list_for_each_safe(sta_plist, ptmp, sta_phead) {
-			ptxservq = container_of(sta_plist, struct tx_servq,
-						tx_pending);
-
+		list_for_each_entry_safe(ptxservq, ptmp, sta_phead,
+					 tx_pending) {
 			pframe_queue = &ptxservq->sta_pending;
 
 			pxmitframe = dequeue_one_xmitframe(pxmitpriv, phwxmit, ptxservq, pframe_queue);
@@ -2052,18 +2043,15 @@ dequeue_xmitframes_to_sleeping_queue(struct rtw_adapter *padapter,
 				     struct rtw_queue *pframequeue)
 {
 	int ret;
-	struct list_head *plist, *phead, *ptmp;
-	u8	ac_index;
+	struct list_head *phead;
+	u8 ac_index;
 	struct tx_servq	*ptxservq;
-	struct pkt_attrib	*pattrib;
-	struct xmit_frame	*pxmitframe;
-	struct hw_xmit *phwxmits =  padapter->xmitpriv.hwxmits;
+	struct pkt_attrib *pattrib;
+	struct xmit_frame *pxmitframe, *ptmp;
+	struct hw_xmit *phwxmits = padapter->xmitpriv.hwxmits;
 
 	phead = get_list_head(pframequeue);
-
-	list_for_each_safe(plist, ptmp, phead) {
-		pxmitframe = container_of(plist, struct xmit_frame, list);
-
+	list_for_each_entry_safe(pxmitframe, ptmp, phead, list) {
 		ret = xmitframe_enqueue_for_sleeping_sta23a(padapter, pxmitframe);
 
 		if (ret == true) {
@@ -2124,17 +2112,14 @@ void wakeup_sta_to_xmit23a(struct rtw_adapter *padapter, struct sta_info *psta)
 {
 	u8 update_mask = 0, wmmps_ac = 0;
 	struct sta_info *psta_bmc;
-	struct list_head *plist, *phead, *ptmp;
-	struct xmit_frame *pxmitframe = NULL;
+	struct list_head *phead;
+	struct xmit_frame *pxmitframe = NULL, *ptmp;
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 
 	spin_lock_bh(&pxmitpriv->lock);
-
 	phead = get_list_head(&psta->sleep_q);
-
-	list_for_each_safe(plist, ptmp, phead) {
-		pxmitframe = container_of(plist, struct xmit_frame, list);
+	list_for_each_entry_safe(pxmitframe, ptmp, phead, list) {
 		list_del_init(&pxmitframe->list);
 
 		switch (pxmitframe->attrib.priority) {
@@ -2194,7 +2179,6 @@ void wakeup_sta_to_xmit23a(struct rtw_adapter *padapter, struct sta_info *psta)
 
 		pstapriv->sta_dz_bitmap &= ~CHKBIT(psta->aid);
 	}
-
 	/* spin_unlock_bh(&psta->sleep_q.lock); */
 	spin_unlock_bh(&pxmitpriv->lock);
 
@@ -2206,13 +2190,8 @@ void wakeup_sta_to_xmit23a(struct rtw_adapter *padapter, struct sta_info *psta)
 	if ((pstapriv->sta_dz_bitmap&0xfffe) == 0x0) {
 		/* no any sta in ps mode */
 		spin_lock_bh(&pxmitpriv->lock);
-
 		phead = get_list_head(&psta_bmc->sleep_q);
-
-		list_for_each_safe(plist, ptmp, phead) {
-			pxmitframe = container_of(plist, struct xmit_frame,
-						  list);
-
+		list_for_each_entry_safe(pxmitframe, ptmp, phead, list) {
 			list_del_init(&pxmitframe->list);
 
 			psta_bmc->sleepq_len--;
@@ -2232,7 +2211,6 @@ void wakeup_sta_to_xmit23a(struct rtw_adapter *padapter, struct sta_info *psta)
 			/* update_BCNTIM(padapter); */
 			update_mask |= BIT(1);
 		}
-
 		/* spin_unlock_bh(&psta_bmc->sleep_q.lock); */
 		spin_unlock_bh(&pxmitpriv->lock);
 	}
@@ -2245,19 +2223,15 @@ void xmit_delivery_enabled_frames23a(struct rtw_adapter *padapter,
 				  struct sta_info *psta)
 {
 	u8 wmmps_ac = 0;
-	struct list_head *plist, *phead, *ptmp;
-	struct xmit_frame *pxmitframe;
+	struct list_head *phead;
+	struct xmit_frame *pxmitframe, *ptmp;
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 
 	/* spin_lock_bh(&psta->sleep_q.lock); */
 	spin_lock_bh(&pxmitpriv->lock);
-
 	phead = get_list_head(&psta->sleep_q);
-
-	list_for_each_safe(plist, ptmp, phead) {
-		pxmitframe = container_of(plist, struct xmit_frame, list);
-
+	list_for_each_entry_safe(pxmitframe, ptmp, phead, list) {
 		switch (pxmitframe->attrib.priority) {
 		case 1:
 		case 2:
diff --git a/drivers/staging/rtl8723au/hal/HalHWImg8723A_RF.c b/drivers/staging/rtl8723au/hal/HalHWImg8723A_RF.c
index dbf571e..286f3ea 100644
--- a/drivers/staging/rtl8723au/hal/HalHWImg8723A_RF.c
+++ b/drivers/staging/rtl8723au/hal/HalHWImg8723A_RF.c
@@ -215,7 +215,7 @@ void ODM_ReadAndConfig_RadioA_1T_8723A(struct dm_odm_t *pDM_Odm)
 	u32     i           = 0;
 	u8     platform    = 0x04;
 	u8     board       = pDM_Odm->BoardType;
-	u32     ArrayLen    = sizeof(Array_RadioA_1T_8723A)/sizeof(u32);
+	u32     ArrayLen    = ARRAY_SIZE(Array_RadioA_1T_8723A);
 	u32 *Array = Array_RadioA_1T_8723A;
 
 	hex += board;
diff --git a/drivers/staging/rtl8723au/hal/hal_com.c b/drivers/staging/rtl8723au/hal/hal_com.c
index 530db57..9d7b11b 100644
--- a/drivers/staging/rtl8723au/hal/hal_com.c
+++ b/drivers/staging/rtl8723au/hal/hal_com.c
@@ -328,7 +328,7 @@ int c2h_evt_read23a(struct rtw_adapter *adapter, u8 *buf)
 
 	if (trigger == C2H_EVT_HOST_CLOSE)
 		goto exit;	/* Not ready */
-	else if (trigger != C2H_EVT_FW_CLOSE)
+	if (trigger != C2H_EVT_FW_CLOSE)
 		goto clear_evt;	/* Not a valid value */
 
 	c2h_evt = (struct c2h_evt_hdr *)buf;
diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_bt-coexist.c b/drivers/staging/rtl8723au/hal/rtl8723a_bt-coexist.c
index 33eabf4..1688f66 100644
--- a/drivers/staging/rtl8723au/hal/rtl8723a_bt-coexist.c
+++ b/drivers/staging/rtl8723au/hal/rtl8723a_bt-coexist.c
@@ -77,8 +77,6 @@ if ((BTCoexDbgLevel == _bt_dbg_on_)) {\
 
 #define PlatformZeroMemory(ptr, sz)	memset(ptr, 0, sz)
 
-#define PlatformProcessHCICommands(...)
-#define PlatformTxBTQueuedPackets(...)
 #define PlatformIndicateBTACLData(...)	(RT_STATUS_SUCCESS)
 
 #define GET_UNDECORATED_AVERAGE_RSSI(padapter)	\
diff --git a/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
index 0ae2180..908b84c 100644
--- a/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
+++ b/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
@@ -1270,18 +1270,14 @@ void rtw_cfg80211_indicate_scan_done(struct rtw_wdev_priv *pwdev_priv,
 
 void rtw_cfg80211_surveydone_event_callback(struct rtw_adapter *padapter)
 {
-	struct list_head *plist, *phead, *ptmp;
+	struct list_head *phead;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct rtw_queue *queue = &pmlmepriv->scanned_queue;
-	struct wlan_network *pnetwork;
+	struct wlan_network *pnetwork, *ptmp;
 
 	spin_lock_bh(&pmlmepriv->scanned_queue.lock);
-
 	phead = get_list_head(queue);
-
-	list_for_each_safe(plist, ptmp, phead) {
-		pnetwork = container_of(plist, struct wlan_network, list);
-
+	list_for_each_entry_safe(pnetwork, ptmp, phead, list) {
 		/* report network only if the current channel set
 		   contains the channel to which this network belongs */
 		if (rtw_ch_set_search_ch23a
@@ -1289,7 +1285,6 @@ void rtw_cfg80211_surveydone_event_callback(struct rtw_adapter *padapter)
 		     pnetwork->network.DSConfig) >= 0)
 			rtw_cfg80211_inform_bss(padapter, pnetwork);
 	}
-
 	spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
 
 	/* call this after other things have been done */
@@ -2850,9 +2845,9 @@ static int cfg80211_rtw_del_station(struct wiphy *wiphy,
 {
 	const u8 *mac = params->mac;
 	int ret = 0;
-	struct list_head *phead, *plist, *ptmp;
+	struct list_head *phead;
 	u8 updated = 0;
-	struct sta_info *psta;
+	struct sta_info *psta, *ptmp;
 	struct rtw_adapter *padapter = netdev_priv(ndev);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct sta_priv *pstapriv = &padapter->stapriv;
@@ -2881,13 +2876,9 @@ static int cfg80211_rtw_del_station(struct wiphy *wiphy,
 		return -EINVAL;
 
 	spin_lock_bh(&pstapriv->asoc_list_lock);
-
 	phead = &pstapriv->asoc_list;
-
 	/* check asoc_queue */
-	list_for_each_safe(plist, ptmp, phead) {
-		psta = container_of(plist, struct sta_info, asoc_list);
-
+	list_for_each_entry_safe(psta, ptmp, phead, asoc_list) {
 		if (ether_addr_equal(mac, psta->hwaddr)) {
 			if (psta->dot8021xalg == 1 &&
 			    psta->bpairwise_key_installed == false) {
@@ -2912,7 +2903,6 @@ static int cfg80211_rtw_del_station(struct wiphy *wiphy,
 			}
 		}
 	}
-
 	spin_unlock_bh(&pstapriv->asoc_list_lock);
 
 	associated_clients_update23a(padapter, updated);
diff --git a/drivers/staging/rtl8723au/os_dep/usb_ops_linux.c b/drivers/staging/rtl8723au/os_dep/usb_ops_linux.c
index 0cdaef0..cf4a506 100644
--- a/drivers/staging/rtl8723au/os_dep/usb_ops_linux.c
+++ b/drivers/staging/rtl8723au/os_dep/usb_ops_linux.c
@@ -210,22 +210,21 @@ exit:
 void rtl8723au_write_port_cancel(struct rtw_adapter *padapter)
 {
 	struct xmit_buf *pxmitbuf;
-	struct list_head *plist;
 	int j;
 
 	DBG_8723A("%s\n", __func__);
 
 	padapter->bWritePortCancel = true;
 
-	list_for_each(plist, &padapter->xmitpriv.xmitbuf_list) {
-		pxmitbuf = container_of(plist, struct xmit_buf, list2);
+	list_for_each_entry(pxmitbuf, &padapter->xmitpriv.xmitbuf_list,
+			    list2) {
 		for (j = 0; j < 8; j++) {
 			if (pxmitbuf->pxmit_urb[j])
 				usb_kill_urb(pxmitbuf->pxmit_urb[j]);
 		}
 	}
-	list_for_each(plist, &padapter->xmitpriv.xmitextbuf_list) {
-		pxmitbuf = container_of(plist, struct xmit_buf, list2);
+	list_for_each_entry(pxmitbuf, &padapter->xmitpriv.xmitextbuf_list,
+			    list2) {
 		for (j = 0; j < 8; j++) {
 			if (pxmitbuf->pxmit_urb[j])
 				usb_kill_urb(pxmitbuf->pxmit_urb[j]);
diff --git a/drivers/staging/rts5208/rtsx_transport.c b/drivers/staging/rts5208/rtsx_transport.c
index f2eb18e..f564a74 100644
--- a/drivers/staging/rts5208/rtsx_transport.c
+++ b/drivers/staging/rts5208/rtsx_transport.c
@@ -1,4 +1,5 @@
-/* Driver for Realtek PCI-Express card reader
+/*
+ * Driver for Realtek PCI-Express card reader
  *
  * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
  *
@@ -30,74 +31,76 @@
  * Scatter-gather transfer buffer access routines
  ***********************************************************************/
 
-/* Copy a buffer of length buflen to/from the srb's transfer buffer.
+/*
+ * Copy a buffer of length buflen to/from the srb's transfer buffer.
  * (Note: for scatter-gather transfers (srb->use_sg > 0), srb->request_buffer
  * points to a list of s-g entries and we ignore srb->request_bufflen.
  * For non-scatter-gather transfers, srb->request_buffer points to the
  * transfer buffer itself and srb->request_bufflen is the buffer's length.)
  * Update the *index and *offset variables so that the next copy will
- * pick up from where this one left off. */
+ * pick up from where this one left off.
+ */
 
 unsigned int rtsx_stor_access_xfer_buf(unsigned char *buffer,
-	unsigned int buflen, struct scsi_cmnd *srb, unsigned int *index,
-	unsigned int *offset, enum xfer_buf_dir dir)
+				       unsigned int buflen,
+				       struct scsi_cmnd *srb,
+				       unsigned int *index,
+				       unsigned int *offset,
+				       enum xfer_buf_dir dir)
 {
 	unsigned int cnt;
 
-	/* If not using scatter-gather, just transfer the data directly.
-	 * Make certain it will fit in the available buffer space. */
+	/* If not using scatter-gather, just transfer the data directly. */
 	if (scsi_sg_count(srb) == 0) {
+		unsigned char *sgbuffer;
+
 		if (*offset >= scsi_bufflen(srb))
 			return 0;
 		cnt = min(buflen, scsi_bufflen(srb) - *offset);
+
+		sgbuffer = (unsigned char *)scsi_sglist(srb) + *offset;
+
 		if (dir == TO_XFER_BUF)
-			memcpy((unsigned char *) scsi_sglist(srb) + *offset,
-					buffer, cnt);
+			memcpy(sgbuffer, buffer, cnt);
 		else
-			memcpy(buffer, (unsigned char *) scsi_sglist(srb) +
-					*offset, cnt);
+			memcpy(buffer, sgbuffer, cnt);
 		*offset += cnt;
 
-	/* Using scatter-gather.  We have to go through the list one entry
+	/*
+	 * Using scatter-gather.  We have to go through the list one entry
 	 * at a time.  Each s-g entry contains some number of pages, and
-	 * each page has to be kmap()'ed separately.  If the page is already
-	 * in kernel-addressable memory then kmap() will return its address.
-	 * If the page is not directly accessible -- such as a user buffer
-	 * located in high memory -- then kmap() will map it to a temporary
-	 * position in the kernel's virtual address space. */
+	 * each page has to be kmap()'ed separately.
+	 */
 	} else {
 		struct scatterlist *sg =
-				(struct scatterlist *) scsi_sglist(srb)
+				(struct scatterlist *)scsi_sglist(srb)
 				+ *index;
 
-		/* This loop handles a single s-g list entry, which may
+		/*
+		 * This loop handles a single s-g list entry, which may
 		 * include multiple pages.  Find the initial page structure
 		 * and the starting offset within the page, and update
-		 * the *offset and *index values for the next loop. */
+		 * the *offset and *index values for the next loop.
+		 */
 		cnt = 0;
 		while (cnt < buflen && *index < scsi_sg_count(srb)) {
 			struct page *page = sg_page(sg) +
 					((sg->offset + *offset) >> PAGE_SHIFT);
-			unsigned int poff =
-					(sg->offset + *offset) & (PAGE_SIZE-1);
+			unsigned int poff = (sg->offset + *offset) &
+					    (PAGE_SIZE - 1);
 			unsigned int sglen = sg->length - *offset;
 
 			if (sglen > buflen - cnt) {
-
 				/* Transfer ends within this s-g entry */
 				sglen = buflen - cnt;
 				*offset += sglen;
 			} else {
-
 				/* Transfer continues to next s-g entry */
 				*offset = 0;
 				++*index;
 				++sg;
 			}
 
-			/* Transfer the data for all the pages in this
-			 * s-g entry.  For each page: call kmap(), do the
-			 * transfer, and call kunmap() immediately after. */
 			while (sglen > 0) {
 				unsigned int plen = min(sglen, (unsigned int)
 						PAGE_SIZE - poff);
@@ -122,10 +125,12 @@ unsigned int rtsx_stor_access_xfer_buf(unsigned char *buffer,
 	return cnt;
 }
 
-/* Store the contents of buffer into srb's transfer buffer and set the
-* SCSI residue. */
+/*
+ * Store the contents of buffer into srb's transfer buffer and set the
+ * SCSI residue.
+ */
 void rtsx_stor_set_xfer_buf(unsigned char *buffer,
-	unsigned int buflen, struct scsi_cmnd *srb)
+			    unsigned int buflen, struct scsi_cmnd *srb)
 {
 	unsigned int index = 0, offset = 0;
 
@@ -136,7 +141,7 @@ void rtsx_stor_set_xfer_buf(unsigned char *buffer,
 }
 
 void rtsx_stor_get_xfer_buf(unsigned char *buffer,
-	unsigned int buflen, struct scsi_cmnd *srb)
+			    unsigned int buflen, struct scsi_cmnd *srb)
 {
 	unsigned int index = 0, offset = 0;
 
@@ -146,12 +151,12 @@ void rtsx_stor_get_xfer_buf(unsigned char *buffer,
 		scsi_set_resid(srb, scsi_bufflen(srb) - buflen);
 }
 
-
 /***********************************************************************
  * Transport routines
  ***********************************************************************/
 
-/* Invoke the transport and basic error-handling/recovery methods
+/*
+ * Invoke the transport and basic error-handling/recovery methods
  *
  * This is used to send the message to the device and receive the response.
  */
@@ -161,20 +166,21 @@ void rtsx_invoke_transport(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	result = rtsx_scsi_handler(srb, chip);
 
-	/* if the command gets aborted by the higher layers, we need to
-	 * short-circuit all other processing
+	/*
+	 * if the command gets aborted by the higher layers, we need to
+	 * short-circuit all other processing.
 	 */
 	if (rtsx_chk_stat(chip, RTSX_STAT_ABORT)) {
 		dev_dbg(rtsx_dev(chip), "-- command was aborted\n");
 		srb->result = DID_ABORT << 16;
-		goto Handle_Errors;
+		goto handle_errors;
 	}
 
 	/* if there is a transport error, reset and don't auto-sense */
 	if (result == TRANSPORT_ERROR) {
 		dev_dbg(rtsx_dev(chip), "-- transport indicates error, resetting\n");
 		srb->result = DID_ERROR << 16;
-		goto Handle_Errors;
+		goto handle_errors;
 	}
 
 	srb->result = SAM_STAT_GOOD;
@@ -188,21 +194,18 @@ void rtsx_invoke_transport(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		/* set the result so the higher layers expect this data */
 		srb->result = SAM_STAT_CHECK_CONDITION;
 		memcpy(srb->sense_buffer,
-			(unsigned char *)&(chip->sense_buffer[SCSI_LUN(srb)]),
-			sizeof(struct sense_data_t));
+		       (unsigned char *)&chip->sense_buffer[SCSI_LUN(srb)],
+		       sizeof(struct sense_data_t));
 	}
 
 	return;
 
-	/* Error and abort processing: try to resynchronize with the device
-	 * by issuing a port reset.  If that fails, try a class-specific
-	 * device reset. */
-Handle_Errors:
+handle_errors:
 	return;
 }
 
 void rtsx_add_cmd(struct rtsx_chip *chip,
-		u8 cmd_type, u16 reg_addr, u8 mask, u8 data)
+		  u8 cmd_type, u16 reg_addr, u8 mask, u8 data)
 {
 	u32 *cb = (u32 *)(chip->host_cmds_ptr);
 	u32 val = 0;
@@ -321,9 +324,11 @@ static inline void rtsx_add_sg_tbl(
 }
 
 static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card,
-		struct scatterlist *sg, int num_sg, unsigned int *index,
-		unsigned int *offset, int size,
-		enum dma_data_direction dma_dir, int timeout)
+					     struct scatterlist *sg, int num_sg,
+					     unsigned int *index,
+					     unsigned int *offset, int size,
+					     enum dma_data_direction dma_dir,
+					     int timeout)
 {
 	struct rtsx_dev *rtsx = chip->rtsx;
 	struct completion trans_done;
@@ -334,7 +339,7 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card,
 	struct scatterlist *sg_ptr;
 	u32 val = TRIG_DMA;
 
-	if ((sg == NULL) || (num_sg <= 0) || !offset || !index)
+	if (!sg || (num_sg <= 0) || !offset || !index)
 		return -EIO;
 
 	if (dma_dir == DMA_TO_DEVICE)
@@ -363,15 +368,16 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card,
 
 	spin_unlock_irq(&rtsx->reg_lock);
 
-	sg_cnt = dma_map_sg(&(rtsx->pci->dev), sg, num_sg, dma_dir);
+	sg_cnt = dma_map_sg(&rtsx->pci->dev, sg, num_sg, dma_dir);
 
 	resid = size;
 	sg_ptr = sg;
 	chip->sgi = 0;
-	/* Usually the next entry will be @sg@ + 1, but if this sg element
+	/*
+	 * Usually the next entry will be @sg@ + 1, but if this sg element
 	 * is part of a chained scatterlist, it could jump to the start of
 	 * a new scatterlist array. So here we use sg_next to move to
-	 * the proper sg
+	 * the proper sg.
 	 */
 	for (i = 0; i < *index; i++)
 		sg_ptr = sg_next(sg_ptr);
@@ -476,7 +482,7 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card,
 out:
 	rtsx->done = NULL;
 	rtsx->trans_state = STATE_TRANS_NONE;
-	dma_unmap_sg(&(rtsx->pci->dev), sg, num_sg, dma_dir);
+	dma_unmap_sg(&rtsx->pci->dev, sg, num_sg, dma_dir);
 
 	if (err < 0)
 		rtsx_stop_cmd(chip, card);
@@ -485,8 +491,9 @@ out:
 }
 
 static int rtsx_transfer_sglist_adma(struct rtsx_chip *chip, u8 card,
-		struct scatterlist *sg, int num_sg,
-		enum dma_data_direction dma_dir, int timeout)
+				     struct scatterlist *sg, int num_sg,
+				     enum dma_data_direction dma_dir,
+				     int timeout)
 {
 	struct rtsx_dev *rtsx = chip->rtsx;
 	struct completion trans_done;
@@ -496,7 +503,7 @@ static int rtsx_transfer_sglist_adma(struct rtsx_chip *chip, u8 card,
 	long timeleft;
 	struct scatterlist *sg_ptr;
 
-	if ((sg == NULL) || (num_sg <= 0))
+	if (!sg || (num_sg <= 0))
 		return -EIO;
 
 	if (dma_dir == DMA_TO_DEVICE)
@@ -525,7 +532,7 @@ static int rtsx_transfer_sglist_adma(struct rtsx_chip *chip, u8 card,
 
 	spin_unlock_irq(&rtsx->reg_lock);
 
-	buf_cnt = dma_map_sg(&(rtsx->pci->dev), sg, num_sg, dma_dir);
+	buf_cnt = dma_map_sg(&rtsx->pci->dev, sg, num_sg, dma_dir);
 
 	sg_ptr = sg;
 
@@ -623,7 +630,7 @@ static int rtsx_transfer_sglist_adma(struct rtsx_chip *chip, u8 card,
 out:
 	rtsx->done = NULL;
 	rtsx->trans_state = STATE_TRANS_NONE;
-	dma_unmap_sg(&(rtsx->pci->dev), sg, num_sg, dma_dir);
+	dma_unmap_sg(&rtsx->pci->dev, sg, num_sg, dma_dir);
 
 	if (err < 0)
 		rtsx_stop_cmd(chip, card);
@@ -632,7 +639,8 @@ out:
 }
 
 static int rtsx_transfer_buf(struct rtsx_chip *chip, u8 card, void *buf,
-		size_t len, enum dma_data_direction dma_dir, int timeout)
+			     size_t len, enum dma_data_direction dma_dir,
+			     int timeout)
 {
 	struct rtsx_dev *rtsx = chip->rtsx;
 	struct completion trans_done;
@@ -642,7 +650,7 @@ static int rtsx_transfer_buf(struct rtsx_chip *chip, u8 card, void *buf,
 	u32 val = 1 << 31;
 	long timeleft;
 
-	if ((buf == NULL) || (len <= 0))
+	if (!buf || (len <= 0))
 		return -EIO;
 
 	if (dma_dir == DMA_TO_DEVICE)
@@ -706,7 +714,7 @@ static int rtsx_transfer_buf(struct rtsx_chip *chip, u8 card, void *buf,
 out:
 	rtsx->done = NULL;
 	rtsx->trans_state = STATE_TRANS_NONE;
-	dma_unmap_single(&(rtsx->pci->dev), addr, len, dma_dir);
+	dma_unmap_single(&rtsx->pci->dev, addr, len, dma_dir);
 
 	if (err < 0)
 		rtsx_stop_cmd(chip, card);
@@ -715,9 +723,9 @@ out:
 }
 
 int rtsx_transfer_data_partial(struct rtsx_chip *chip, u8 card,
-		void *buf, size_t len, int use_sg, unsigned int *index,
-		unsigned int *offset, enum dma_data_direction dma_dir,
-		int timeout)
+			       void *buf, size_t len, int use_sg,
+			       unsigned int *index, unsigned int *offset,
+			       enum dma_data_direction dma_dir, int timeout)
 {
 	int err = 0;
 
@@ -725,13 +733,16 @@ int rtsx_transfer_data_partial(struct rtsx_chip *chip, u8 card,
 	if (rtsx_chk_stat(chip, RTSX_STAT_ABORT))
 		return -EIO;
 
-	if (use_sg)
-		err = rtsx_transfer_sglist_adma_partial(chip, card,
-				(struct scatterlist *)buf, use_sg,
-				index, offset, (int)len, dma_dir, timeout);
-	else
+	if (use_sg) {
+		struct scatterlist *sg = (struct scatterlist *)buf;
+
+		err = rtsx_transfer_sglist_adma_partial(chip, card, sg, use_sg,
+							index, offset, (int)len,
+							dma_dir, timeout);
+	} else {
 		err = rtsx_transfer_buf(chip, card,
 					buf, len, dma_dir, timeout);
+	}
 	if (err < 0) {
 		if (RTSX_TST_DELINK(chip)) {
 			RTSX_CLR_DELINK(chip);
@@ -744,7 +755,7 @@ int rtsx_transfer_data_partial(struct rtsx_chip *chip, u8 card,
 }
 
 int rtsx_transfer_data(struct rtsx_chip *chip, u8 card, void *buf, size_t len,
-		int use_sg, enum dma_data_direction dma_dir, int timeout)
+		       int use_sg, enum dma_data_direction dma_dir, int timeout)
 {
 	int err = 0;
 
@@ -756,8 +767,8 @@ int rtsx_transfer_data(struct rtsx_chip *chip, u8 card, void *buf, size_t len,
 
 	if (use_sg) {
 		err = rtsx_transfer_sglist_adma(chip, card,
-				(struct scatterlist *)buf,
-				use_sg, dma_dir, timeout);
+						(struct scatterlist *)buf,
+						use_sg, dma_dir, timeout);
 	} else {
 		err = rtsx_transfer_buf(chip, card, buf, len, dma_dir, timeout);
 	}
diff --git a/drivers/staging/sm750fb/ddk750_chip.c b/drivers/staging/sm750fb/ddk750_chip.c
index e53a3d1..95f7cae 100644
--- a/drivers/staging/sm750fb/ddk750_chip.c
+++ b/drivers/staging/sm750fb/ddk750_chip.c
@@ -1,3 +1,4 @@
+#include <linux/kernel.h>
 #include <linux/sizes.h>
 
 #include "ddk750_help.h"
@@ -5,6 +6,10 @@
 #include "ddk750_chip.h"
 #include "ddk750_power.h"
 
+/* n / d + 1 / 2 = (2n + d) / 2d */
+#define roundedDiv(num, denom)	((2 * (num) + (denom)) / (2 * (denom)))
+#define MHz(x) ((x) * 1000000)
+
 logical_chip_type_t getChipType(void)
 {
 	unsigned short physicalID;
@@ -335,7 +340,7 @@ unsigned int calcPllValue(unsigned int request_orig, pll_value_t *pll)
 				unsigned int diff;
 
 				tmpClock = pll->inputFreq * M / N / X;
-				diff = absDiff(tmpClock, request_orig);
+				diff = abs(tmpClock - request_orig);
 				if (diff < mini_diff) {
 					pll->M = M;
 					pll->N = N;
diff --git a/drivers/staging/sm750fb/ddk750_help.h b/drivers/staging/sm750fb/ddk750_help.h
index 5be814e..009db92 100644
--- a/drivers/staging/sm750fb/ddk750_help.h
+++ b/drivers/staging/sm750fb/ddk750_help.h
@@ -6,7 +6,6 @@
 #include <linux/ioport.h>
 #include <linux/io.h>
 #include <linux/uaccess.h>
-#include "sm750_help.h"
 
 /* software control endianness */
 #define PEEK32(addr) readl(addr + mmio750)
diff --git a/drivers/staging/sm750fb/ddk750_mode.c b/drivers/staging/sm750fb/ddk750_mode.c
index 7e57b57..ccb4e06 100644
--- a/drivers/staging/sm750fb/ddk750_mode.c
+++ b/drivers/staging/sm750fb/ddk750_mode.c
@@ -25,13 +25,12 @@ static unsigned long displayControlAdjust_SM750LE(mode_parameter_t *pModeParam,
 	   Note that normal SM750/SM718 only use those two register for
 	   auto-centering mode.
 	 */
-	POKE32(CRT_AUTO_CENTERING_TL,
-	FIELD_VALUE(0, CRT_AUTO_CENTERING_TL, TOP, 0)
-	| FIELD_VALUE(0, CRT_AUTO_CENTERING_TL, LEFT, 0));
+	POKE32(CRT_AUTO_CENTERING_TL, 0);
 
 	POKE32(CRT_AUTO_CENTERING_BR,
-	FIELD_VALUE(0, CRT_AUTO_CENTERING_BR, BOTTOM, y - 1)
-	| FIELD_VALUE(0, CRT_AUTO_CENTERING_BR, RIGHT, x - 1));
+		(((y - 1) << CRT_AUTO_CENTERING_BR_BOTTOM_SHIFT) &
+			CRT_AUTO_CENTERING_BR_BOTTOM_MASK) |
+		((x - 1) & CRT_AUTO_CENTERING_BR_RIGHT_MASK));
 
 	/* Assume common fields in dispControl have been properly set before
 	   calling this function.
@@ -84,20 +83,32 @@ static int programModeRegisters(mode_parameter_t *pModeParam, pll_value_t *pll)
 		/* programe secondary pixel clock */
 		POKE32(CRT_PLL_CTRL, formatPllReg(pll));
 		POKE32(CRT_HORIZONTAL_TOTAL,
-		FIELD_VALUE(0, CRT_HORIZONTAL_TOTAL, TOTAL, pModeParam->horizontal_total - 1)
-		| FIELD_VALUE(0, CRT_HORIZONTAL_TOTAL, DISPLAY_END, pModeParam->horizontal_display_end - 1));
+			(((pModeParam->horizontal_total - 1) <<
+				CRT_HORIZONTAL_TOTAL_TOTAL_SHIFT) &
+				CRT_HORIZONTAL_TOTAL_TOTAL_MASK) |
+			((pModeParam->horizontal_display_end - 1) &
+				CRT_HORIZONTAL_TOTAL_DISPLAY_END_MASK));
 
 		POKE32(CRT_HORIZONTAL_SYNC,
-		FIELD_VALUE(0, CRT_HORIZONTAL_SYNC, WIDTH, pModeParam->horizontal_sync_width)
-		| FIELD_VALUE(0, CRT_HORIZONTAL_SYNC, START, pModeParam->horizontal_sync_start - 1));
+			((pModeParam->horizontal_sync_width <<
+				CRT_HORIZONTAL_SYNC_WIDTH_SHIFT) &
+				CRT_HORIZONTAL_SYNC_WIDTH_MASK) |
+			((pModeParam->horizontal_sync_start - 1) &
+				CRT_HORIZONTAL_SYNC_START_MASK));
 
 		POKE32(CRT_VERTICAL_TOTAL,
-		FIELD_VALUE(0, CRT_VERTICAL_TOTAL, TOTAL, pModeParam->vertical_total - 1)
-		| FIELD_VALUE(0, CRT_VERTICAL_TOTAL, DISPLAY_END, pModeParam->vertical_display_end - 1));
+			(((pModeParam->vertical_total - 1) <<
+				CRT_VERTICAL_TOTAL_TOTAL_SHIFT) &
+				CRT_VERTICAL_TOTAL_TOTAL_MASK) |
+			((pModeParam->vertical_display_end - 1) &
+				CRT_VERTICAL_TOTAL_DISPLAY_END_MASK));
 
 		POKE32(CRT_VERTICAL_SYNC,
-		FIELD_VALUE(0, CRT_VERTICAL_SYNC, HEIGHT, pModeParam->vertical_sync_height)
-		| FIELD_VALUE(0, CRT_VERTICAL_SYNC, START, pModeParam->vertical_sync_start - 1));
+			((pModeParam->vertical_sync_height <<
+				CRT_VERTICAL_SYNC_HEIGHT_SHIFT) &
+				CRT_VERTICAL_SYNC_HEIGHT_MASK) |
+			((pModeParam->vertical_sync_start - 1) &
+				CRT_VERTICAL_SYNC_START_MASK));
 
 
 		tmp = DISPLAY_CTRL_TIMING | DISPLAY_CTRL_PLANE;
@@ -130,16 +141,25 @@ static int programModeRegisters(mode_parameter_t *pModeParam, pll_value_t *pll)
 		POKE32(PANEL_HORIZONTAL_TOTAL, reg);
 
 		POKE32(PANEL_HORIZONTAL_SYNC,
-		FIELD_VALUE(0, PANEL_HORIZONTAL_SYNC, WIDTH, pModeParam->horizontal_sync_width)
-		| FIELD_VALUE(0, PANEL_HORIZONTAL_SYNC, START, pModeParam->horizontal_sync_start - 1));
+			((pModeParam->horizontal_sync_width <<
+				PANEL_HORIZONTAL_SYNC_WIDTH_SHIFT) &
+				PANEL_HORIZONTAL_SYNC_WIDTH_MASK) |
+			((pModeParam->horizontal_sync_start - 1) &
+				PANEL_HORIZONTAL_SYNC_START_MASK));
 
 		POKE32(PANEL_VERTICAL_TOTAL,
-		FIELD_VALUE(0, PANEL_VERTICAL_TOTAL, TOTAL, pModeParam->vertical_total - 1)
-			| FIELD_VALUE(0, PANEL_VERTICAL_TOTAL, DISPLAY_END, pModeParam->vertical_display_end - 1));
+			(((pModeParam->vertical_total - 1) <<
+				PANEL_VERTICAL_TOTAL_TOTAL_SHIFT) &
+				PANEL_VERTICAL_TOTAL_TOTAL_MASK) |
+			((pModeParam->vertical_display_end - 1) &
+				PANEL_VERTICAL_TOTAL_DISPLAY_END_MASK));
 
 		POKE32(PANEL_VERTICAL_SYNC,
-		FIELD_VALUE(0, PANEL_VERTICAL_SYNC, HEIGHT, pModeParam->vertical_sync_height)
-		| FIELD_VALUE(0, PANEL_VERTICAL_SYNC, START, pModeParam->vertical_sync_start - 1));
+			((pModeParam->vertical_sync_height <<
+				PANEL_VERTICAL_SYNC_HEIGHT_SHIFT) &
+				PANEL_VERTICAL_SYNC_HEIGHT_MASK) |
+			((pModeParam->vertical_sync_start - 1) &
+				PANEL_VERTICAL_SYNC_START_MASK));
 
 		tmp = DISPLAY_CTRL_TIMING | DISPLAY_CTRL_PLANE;
 		if (pModeParam->vertical_sync_polarity)
diff --git a/drivers/staging/sm750fb/ddk750_reg.h b/drivers/staging/sm750fb/ddk750_reg.h
index 4702897..9552479 100644
--- a/drivers/staging/sm750fb/ddk750_reg.h
+++ b/drivers/staging/sm750fb/ddk750_reg.h
@@ -109,286 +109,187 @@
 #define GPIO_MUX_0                                    BIT(0)
 
 #define LOCALMEM_ARBITRATION                          0x00000C
-#define LOCALMEM_ARBITRATION_ROTATE                   28:28
-#define LOCALMEM_ARBITRATION_ROTATE_OFF               0
-#define LOCALMEM_ARBITRATION_ROTATE_ON                1
-#define LOCALMEM_ARBITRATION_VGA                      26:24
-#define LOCALMEM_ARBITRATION_VGA_OFF                  0
-#define LOCALMEM_ARBITRATION_VGA_PRIORITY_1           1
-#define LOCALMEM_ARBITRATION_VGA_PRIORITY_2           2
-#define LOCALMEM_ARBITRATION_VGA_PRIORITY_3           3
-#define LOCALMEM_ARBITRATION_VGA_PRIORITY_4           4
-#define LOCALMEM_ARBITRATION_VGA_PRIORITY_5           5
-#define LOCALMEM_ARBITRATION_VGA_PRIORITY_6           6
-#define LOCALMEM_ARBITRATION_VGA_PRIORITY_7           7
-#define LOCALMEM_ARBITRATION_DMA                      22:20
-#define LOCALMEM_ARBITRATION_DMA_OFF                  0
-#define LOCALMEM_ARBITRATION_DMA_PRIORITY_1           1
-#define LOCALMEM_ARBITRATION_DMA_PRIORITY_2           2
-#define LOCALMEM_ARBITRATION_DMA_PRIORITY_3           3
-#define LOCALMEM_ARBITRATION_DMA_PRIORITY_4           4
-#define LOCALMEM_ARBITRATION_DMA_PRIORITY_5           5
-#define LOCALMEM_ARBITRATION_DMA_PRIORITY_6           6
-#define LOCALMEM_ARBITRATION_DMA_PRIORITY_7           7
-#define LOCALMEM_ARBITRATION_ZVPORT1                  18:16
-#define LOCALMEM_ARBITRATION_ZVPORT1_OFF              0
-#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_1       1
-#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_2       2
-#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_3       3
-#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_4       4
-#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_5       5
-#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_6       6
-#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_7       7
-#define LOCALMEM_ARBITRATION_ZVPORT0                  14:12
-#define LOCALMEM_ARBITRATION_ZVPORT0_OFF              0
-#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_1       1
-#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_2       2
-#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_3       3
-#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_4       4
-#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_5       5
-#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_6       6
-#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_7       7
-#define LOCALMEM_ARBITRATION_VIDEO                    10:8
-#define LOCALMEM_ARBITRATION_VIDEO_OFF                0
-#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_1         1
-#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_2         2
-#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_3         3
-#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_4         4
-#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_5         5
-#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_6         6
-#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_7         7
-#define LOCALMEM_ARBITRATION_PANEL                    6:4
-#define LOCALMEM_ARBITRATION_PANEL_OFF                0
-#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_1         1
-#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_2         2
-#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_3         3
-#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_4         4
-#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_5         5
-#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_6         6
-#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_7         7
-#define LOCALMEM_ARBITRATION_CRT                      2:0
-#define LOCALMEM_ARBITRATION_CRT_OFF                  0
-#define LOCALMEM_ARBITRATION_CRT_PRIORITY_1           1
-#define LOCALMEM_ARBITRATION_CRT_PRIORITY_2           2
-#define LOCALMEM_ARBITRATION_CRT_PRIORITY_3           3
-#define LOCALMEM_ARBITRATION_CRT_PRIORITY_4           4
-#define LOCALMEM_ARBITRATION_CRT_PRIORITY_5           5
-#define LOCALMEM_ARBITRATION_CRT_PRIORITY_6           6
-#define LOCALMEM_ARBITRATION_CRT_PRIORITY_7           7
+#define LOCALMEM_ARBITRATION_ROTATE                   BIT(28)
+#define LOCALMEM_ARBITRATION_VGA_MASK                 (0x7 << 24)
+#define LOCALMEM_ARBITRATION_VGA_OFF                  (0x0 << 24)
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_1           (0x1 << 24)
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_2           (0x2 << 24)
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_3           (0x3 << 24)
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_4           (0x4 << 24)
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_5           (0x5 << 24)
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_6           (0x6 << 24)
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_7           (0x7 << 24)
+#define LOCALMEM_ARBITRATION_DMA_MASK                 (0x7 << 20)
+#define LOCALMEM_ARBITRATION_DMA_OFF                  (0x0 << 20)
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_1           (0x1 << 20)
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_2           (0x2 << 20)
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_3           (0x3 << 20)
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_4           (0x4 << 20)
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_5           (0x5 << 20)
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_6           (0x6 << 20)
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_7           (0x7 << 20)
+#define LOCALMEM_ARBITRATION_ZVPORT1_MASK             (0x7 << 16)
+#define LOCALMEM_ARBITRATION_ZVPORT1_OFF              (0x0 << 16)
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_1       (0x1 << 16)
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_2       (0x2 << 16)
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_3       (0x3 << 16)
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_4       (0x4 << 16)
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_5       (0x5 << 16)
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_6       (0x6 << 16)
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_7       (0x7 << 16)
+#define LOCALMEM_ARBITRATION_ZVPORT0_MASK             (0x7 << 12)
+#define LOCALMEM_ARBITRATION_ZVPORT0_OFF              (0x0 << 12)
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_1       (0x1 << 12)
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_2       (0x2 << 12)
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_3       (0x3 << 12)
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_4       (0x4 << 12)
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_5       (0x5 << 12)
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_6       (0x6 << 12)
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_7       (0x7 << 12)
+#define LOCALMEM_ARBITRATION_VIDEO_MASK               (0x7 << 8)
+#define LOCALMEM_ARBITRATION_VIDEO_OFF                (0x0 << 8)
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_1         (0x1 << 8)
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_2         (0x2 << 8)
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_3         (0x3 << 8)
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_4         (0x4 << 8)
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_5         (0x5 << 8)
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_6         (0x6 << 8)
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_7         (0x7 << 8)
+#define LOCALMEM_ARBITRATION_PANEL_MASK               (0x7 << 4)
+#define LOCALMEM_ARBITRATION_PANEL_OFF                (0x0 << 4)
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_1         (0x1 << 4)
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_2         (0x2 << 4)
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_3         (0x3 << 4)
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_4         (0x4 << 4)
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_5         (0x5 << 4)
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_6         (0x6 << 4)
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_7         (0x7 << 4)
+#define LOCALMEM_ARBITRATION_CRT_MASK                 0x7
+#define LOCALMEM_ARBITRATION_CRT_OFF                  0x0
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_1           0x1
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_2           0x2
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_3           0x3
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_4           0x4
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_5           0x5
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_6           0x6
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_7           0x7
 
 #define PCIMEM_ARBITRATION                            0x000010
-#define PCIMEM_ARBITRATION_ROTATE                     28:28
-#define PCIMEM_ARBITRATION_ROTATE_OFF                 0
-#define PCIMEM_ARBITRATION_ROTATE_ON                  1
-#define PCIMEM_ARBITRATION_VGA                        26:24
-#define PCIMEM_ARBITRATION_VGA_OFF                    0
-#define PCIMEM_ARBITRATION_VGA_PRIORITY_1             1
-#define PCIMEM_ARBITRATION_VGA_PRIORITY_2             2
-#define PCIMEM_ARBITRATION_VGA_PRIORITY_3             3
-#define PCIMEM_ARBITRATION_VGA_PRIORITY_4             4
-#define PCIMEM_ARBITRATION_VGA_PRIORITY_5             5
-#define PCIMEM_ARBITRATION_VGA_PRIORITY_6             6
-#define PCIMEM_ARBITRATION_VGA_PRIORITY_7             7
-#define PCIMEM_ARBITRATION_DMA                        22:20
-#define PCIMEM_ARBITRATION_DMA_OFF                    0
-#define PCIMEM_ARBITRATION_DMA_PRIORITY_1             1
-#define PCIMEM_ARBITRATION_DMA_PRIORITY_2             2
-#define PCIMEM_ARBITRATION_DMA_PRIORITY_3             3
-#define PCIMEM_ARBITRATION_DMA_PRIORITY_4             4
-#define PCIMEM_ARBITRATION_DMA_PRIORITY_5             5
-#define PCIMEM_ARBITRATION_DMA_PRIORITY_6             6
-#define PCIMEM_ARBITRATION_DMA_PRIORITY_7             7
-#define PCIMEM_ARBITRATION_ZVPORT1                    18:16
-#define PCIMEM_ARBITRATION_ZVPORT1_OFF                0
-#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_1         1
-#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_2         2
-#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_3         3
-#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_4         4
-#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_5         5
-#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_6         6
-#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_7         7
-#define PCIMEM_ARBITRATION_ZVPORT0                    14:12
-#define PCIMEM_ARBITRATION_ZVPORT0_OFF                0
-#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_1         1
-#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_2         2
-#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_3         3
-#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_4         4
-#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_5         5
-#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_6         6
-#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_7         7
-#define PCIMEM_ARBITRATION_VIDEO                      10:8
-#define PCIMEM_ARBITRATION_VIDEO_OFF                  0
-#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_1           1
-#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_2           2
-#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_3           3
-#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_4           4
-#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_5           5
-#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_6           6
-#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_7           7
-#define PCIMEM_ARBITRATION_PANEL                      6:4
-#define PCIMEM_ARBITRATION_PANEL_OFF                  0
-#define PCIMEM_ARBITRATION_PANEL_PRIORITY_1           1
-#define PCIMEM_ARBITRATION_PANEL_PRIORITY_2           2
-#define PCIMEM_ARBITRATION_PANEL_PRIORITY_3           3
-#define PCIMEM_ARBITRATION_PANEL_PRIORITY_4           4
-#define PCIMEM_ARBITRATION_PANEL_PRIORITY_5           5
-#define PCIMEM_ARBITRATION_PANEL_PRIORITY_6           6
-#define PCIMEM_ARBITRATION_PANEL_PRIORITY_7           7
-#define PCIMEM_ARBITRATION_CRT                        2:0
-#define PCIMEM_ARBITRATION_CRT_OFF                    0
-#define PCIMEM_ARBITRATION_CRT_PRIORITY_1             1
-#define PCIMEM_ARBITRATION_CRT_PRIORITY_2             2
-#define PCIMEM_ARBITRATION_CRT_PRIORITY_3             3
-#define PCIMEM_ARBITRATION_CRT_PRIORITY_4             4
-#define PCIMEM_ARBITRATION_CRT_PRIORITY_5             5
-#define PCIMEM_ARBITRATION_CRT_PRIORITY_6             6
-#define PCIMEM_ARBITRATION_CRT_PRIORITY_7             7
+#define PCIMEM_ARBITRATION_ROTATE                     BIT(28)
+#define PCIMEM_ARBITRATION_VGA_MASK                   (0x7 << 24)
+#define PCIMEM_ARBITRATION_VGA_OFF                    (0x0 << 24)
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_1             (0x1 << 24)
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_2             (0x2 << 24)
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_3             (0x3 << 24)
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_4             (0x4 << 24)
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_5             (0x5 << 24)
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_6             (0x6 << 24)
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_7             (0x7 << 24)
+#define PCIMEM_ARBITRATION_DMA_MASK                   (0x7 << 20)
+#define PCIMEM_ARBITRATION_DMA_OFF                    (0x0 << 20)
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_1             (0x1 << 20)
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_2             (0x2 << 20)
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_3             (0x3 << 20)
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_4             (0x4 << 20)
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_5             (0x5 << 20)
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_6             (0x6 << 20)
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_7             (0x7 << 20)
+#define PCIMEM_ARBITRATION_ZVPORT1_MASK               (0x7 << 16)
+#define PCIMEM_ARBITRATION_ZVPORT1_OFF                (0x0 << 16)
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_1         (0x1 << 16)
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_2         (0x2 << 16)
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_3         (0x3 << 16)
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_4         (0x4 << 16)
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_5         (0x5 << 16)
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_6         (0x6 << 16)
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_7         (0x7 << 16)
+#define PCIMEM_ARBITRATION_ZVPORT0_MASK               (0x7 << 12)
+#define PCIMEM_ARBITRATION_ZVPORT0_OFF                (0x0 << 12)
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_1         (0x1 << 12)
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_2         (0x2 << 12)
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_3         (0x3 << 12)
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_4         (0x4 << 12)
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_5         (0x5 << 12)
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_6         (0x6 << 12)
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_7         (0x7 << 12)
+#define PCIMEM_ARBITRATION_VIDEO_MASK                 (0x7 << 8)
+#define PCIMEM_ARBITRATION_VIDEO_OFF                  (0x0 << 8)
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_1           (0x1 << 8)
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_2           (0x2 << 8)
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_3           (0x3 << 8)
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_4           (0x4 << 8)
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_5           (0x5 << 8)
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_6           (0x6 << 8)
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_7           (0x7 << 8)
+#define PCIMEM_ARBITRATION_PANEL_MASK                 (0x7 << 4)
+#define PCIMEM_ARBITRATION_PANEL_OFF                  (0x0 << 4)
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_1           (0x1 << 4)
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_2           (0x2 << 4)
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_3           (0x3 << 4)
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_4           (0x4 << 4)
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_5           (0x5 << 4)
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_6           (0x6 << 4)
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_7           (0x7 << 4)
+#define PCIMEM_ARBITRATION_CRT_MASK                   0x7
+#define PCIMEM_ARBITRATION_CRT_OFF                    0x0
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_1             0x1
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_2             0x2
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_3             0x3
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_4             0x4
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_5             0x5
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_6             0x6
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_7             0x7
 
 #define RAW_INT                                       0x000020
-#define RAW_INT_ZVPORT1_VSYNC                         4:4
-#define RAW_INT_ZVPORT1_VSYNC_INACTIVE                0
-#define RAW_INT_ZVPORT1_VSYNC_ACTIVE                  1
-#define RAW_INT_ZVPORT1_VSYNC_CLEAR                   1
-#define RAW_INT_ZVPORT0_VSYNC                         3:3
-#define RAW_INT_ZVPORT0_VSYNC_INACTIVE                0
-#define RAW_INT_ZVPORT0_VSYNC_ACTIVE                  1
-#define RAW_INT_ZVPORT0_VSYNC_CLEAR                   1
-#define RAW_INT_CRT_VSYNC                             2:2
-#define RAW_INT_CRT_VSYNC_INACTIVE                    0
-#define RAW_INT_CRT_VSYNC_ACTIVE                      1
-#define RAW_INT_CRT_VSYNC_CLEAR                       1
-#define RAW_INT_PANEL_VSYNC                           1:1
-#define RAW_INT_PANEL_VSYNC_INACTIVE                  0
-#define RAW_INT_PANEL_VSYNC_ACTIVE                    1
-#define RAW_INT_PANEL_VSYNC_CLEAR                     1
-#define RAW_INT_VGA_VSYNC                             0:0
-#define RAW_INT_VGA_VSYNC_INACTIVE                    0
-#define RAW_INT_VGA_VSYNC_ACTIVE                      1
-#define RAW_INT_VGA_VSYNC_CLEAR                       1
+#define RAW_INT_ZVPORT1_VSYNC                         BIT(4)
+#define RAW_INT_ZVPORT0_VSYNC                         BIT(3)
+#define RAW_INT_CRT_VSYNC                             BIT(2)
+#define RAW_INT_PANEL_VSYNC                           BIT(1)
+#define RAW_INT_VGA_VSYNC                             BIT(0)
 
 #define INT_STATUS                                    0x000024
-#define INT_STATUS_GPIO31                             31:31
-#define INT_STATUS_GPIO31_INACTIVE                    0
-#define INT_STATUS_GPIO31_ACTIVE                      1
-#define INT_STATUS_GPIO30                             30:30
-#define INT_STATUS_GPIO30_INACTIVE                    0
-#define INT_STATUS_GPIO30_ACTIVE                      1
-#define INT_STATUS_GPIO29                             29:29
-#define INT_STATUS_GPIO29_INACTIVE                    0
-#define INT_STATUS_GPIO29_ACTIVE                      1
-#define INT_STATUS_GPIO28                             28:28
-#define INT_STATUS_GPIO28_INACTIVE                    0
-#define INT_STATUS_GPIO28_ACTIVE                      1
-#define INT_STATUS_GPIO27                             27:27
-#define INT_STATUS_GPIO27_INACTIVE                    0
-#define INT_STATUS_GPIO27_ACTIVE                      1
-#define INT_STATUS_GPIO26                             26:26
-#define INT_STATUS_GPIO26_INACTIVE                    0
-#define INT_STATUS_GPIO26_ACTIVE                      1
-#define INT_STATUS_GPIO25                             25:25
-#define INT_STATUS_GPIO25_INACTIVE                    0
-#define INT_STATUS_GPIO25_ACTIVE                      1
-#define INT_STATUS_I2C                                12:12
-#define INT_STATUS_I2C_INACTIVE                       0
-#define INT_STATUS_I2C_ACTIVE                         1
-#define INT_STATUS_PWM                                11:11
-#define INT_STATUS_PWM_INACTIVE                       0
-#define INT_STATUS_PWM_ACTIVE                         1
-#define INT_STATUS_DMA1                               10:10
-#define INT_STATUS_DMA1_INACTIVE                      0
-#define INT_STATUS_DMA1_ACTIVE                        1
-#define INT_STATUS_DMA0                               9:9
-#define INT_STATUS_DMA0_INACTIVE                      0
-#define INT_STATUS_DMA0_ACTIVE                        1
-#define INT_STATUS_PCI                                8:8
-#define INT_STATUS_PCI_INACTIVE                       0
-#define INT_STATUS_PCI_ACTIVE                         1
-#define INT_STATUS_SSP1                               7:7
-#define INT_STATUS_SSP1_INACTIVE                      0
-#define INT_STATUS_SSP1_ACTIVE                        1
-#define INT_STATUS_SSP0                               6:6
-#define INT_STATUS_SSP0_INACTIVE                      0
-#define INT_STATUS_SSP0_ACTIVE                        1
-#define INT_STATUS_DE                                 5:5
-#define INT_STATUS_DE_INACTIVE                        0
-#define INT_STATUS_DE_ACTIVE                          1
-#define INT_STATUS_ZVPORT1_VSYNC                      4:4
-#define INT_STATUS_ZVPORT1_VSYNC_INACTIVE             0
-#define INT_STATUS_ZVPORT1_VSYNC_ACTIVE               1
-#define INT_STATUS_ZVPORT0_VSYNC                      3:3
-#define INT_STATUS_ZVPORT0_VSYNC_INACTIVE             0
-#define INT_STATUS_ZVPORT0_VSYNC_ACTIVE               1
-#define INT_STATUS_CRT_VSYNC                          2:2
-#define INT_STATUS_CRT_VSYNC_INACTIVE                 0
-#define INT_STATUS_CRT_VSYNC_ACTIVE                   1
-#define INT_STATUS_PANEL_VSYNC                        1:1
-#define INT_STATUS_PANEL_VSYNC_INACTIVE               0
-#define INT_STATUS_PANEL_VSYNC_ACTIVE                 1
-#define INT_STATUS_VGA_VSYNC                          0:0
-#define INT_STATUS_VGA_VSYNC_INACTIVE                 0
-#define INT_STATUS_VGA_VSYNC_ACTIVE                   1
+#define INT_STATUS_GPIO31                             BIT(31)
+#define INT_STATUS_GPIO30                             BIT(30)
+#define INT_STATUS_GPIO29                             BIT(29)
+#define INT_STATUS_GPIO28                             BIT(28)
+#define INT_STATUS_GPIO27                             BIT(27)
+#define INT_STATUS_GPIO26                             BIT(26)
+#define INT_STATUS_GPIO25                             BIT(25)
+#define INT_STATUS_I2C                                BIT(12)
+#define INT_STATUS_PWM                                BIT(11)
+#define INT_STATUS_DMA1                               BIT(10)
+#define INT_STATUS_DMA0                               BIT(9)
+#define INT_STATUS_PCI                                BIT(8)
+#define INT_STATUS_SSP1                               BIT(7)
+#define INT_STATUS_SSP0                               BIT(6)
+#define INT_STATUS_DE                                 BIT(5)
+#define INT_STATUS_ZVPORT1_VSYNC                      BIT(4)
+#define INT_STATUS_ZVPORT0_VSYNC                      BIT(3)
+#define INT_STATUS_CRT_VSYNC                          BIT(2)
+#define INT_STATUS_PANEL_VSYNC                        BIT(1)
+#define INT_STATUS_VGA_VSYNC                          BIT(0)
 
 #define INT_MASK                                      0x000028
-#define INT_MASK_GPIO31                               31:31
-#define INT_MASK_GPIO31_DISABLE                       0
-#define INT_MASK_GPIO31_ENABLE                        1
-#define INT_MASK_GPIO30                               30:30
-#define INT_MASK_GPIO30_DISABLE                       0
-#define INT_MASK_GPIO30_ENABLE                        1
-#define INT_MASK_GPIO29                               29:29
-#define INT_MASK_GPIO29_DISABLE                       0
-#define INT_MASK_GPIO29_ENABLE                        1
-#define INT_MASK_GPIO28                               28:28
-#define INT_MASK_GPIO28_DISABLE                       0
-#define INT_MASK_GPIO28_ENABLE                        1
-#define INT_MASK_GPIO27                               27:27
-#define INT_MASK_GPIO27_DISABLE                       0
-#define INT_MASK_GPIO27_ENABLE                        1
-#define INT_MASK_GPIO26                               26:26
-#define INT_MASK_GPIO26_DISABLE                       0
-#define INT_MASK_GPIO26_ENABLE                        1
-#define INT_MASK_GPIO25                               25:25
-#define INT_MASK_GPIO25_DISABLE                       0
-#define INT_MASK_GPIO25_ENABLE                        1
-#define INT_MASK_I2C                                  12:12
-#define INT_MASK_I2C_DISABLE                          0
-#define INT_MASK_I2C_ENABLE                           1
-#define INT_MASK_PWM                                  11:11
-#define INT_MASK_PWM_DISABLE                          0
-#define INT_MASK_PWM_ENABLE                           1
-#define INT_MASK_DMA1                                 10:10
-#define INT_MASK_DMA1_DISABLE                         0
-#define INT_MASK_DMA1_ENABLE                          1
-#define INT_MASK_DMA                                  9:9
-#define INT_MASK_DMA_DISABLE                          0
-#define INT_MASK_DMA_ENABLE                           1
-#define INT_MASK_PCI                                  8:8
-#define INT_MASK_PCI_DISABLE                          0
-#define INT_MASK_PCI_ENABLE                           1
-#define INT_MASK_SSP1                                 7:7
-#define INT_MASK_SSP1_DISABLE                         0
-#define INT_MASK_SSP1_ENABLE                          1
-#define INT_MASK_SSP0                                 6:6
-#define INT_MASK_SSP0_DISABLE                         0
-#define INT_MASK_SSP0_ENABLE                          1
-#define INT_MASK_DE                                   5:5
-#define INT_MASK_DE_DISABLE                           0
-#define INT_MASK_DE_ENABLE                            1
-#define INT_MASK_ZVPORT1_VSYNC                        4:4
-#define INT_MASK_ZVPORT1_VSYNC_DISABLE                0
-#define INT_MASK_ZVPORT1_VSYNC_ENABLE                 1
-#define INT_MASK_ZVPORT0_VSYNC                        3:3
-#define INT_MASK_ZVPORT0_VSYNC_DISABLE                0
-#define INT_MASK_ZVPORT0_VSYNC_ENABLE                 1
-#define INT_MASK_CRT_VSYNC                            2:2
-#define INT_MASK_CRT_VSYNC_DISABLE                    0
-#define INT_MASK_CRT_VSYNC_ENABLE                     1
-#define INT_MASK_PANEL_VSYNC                          1:1
-#define INT_MASK_PANEL_VSYNC_DISABLE                  0
-#define INT_MASK_PANEL_VSYNC_ENABLE                   1
-#define INT_MASK_VGA_VSYNC                            0:0
-#define INT_MASK_VGA_VSYNC_DISABLE                    0
-#define INT_MASK_VGA_VSYNC_ENABLE                     1
+#define INT_MASK_GPIO31                               BIT(31)
+#define INT_MASK_GPIO30                               BIT(30)
+#define INT_MASK_GPIO29                               BIT(29)
+#define INT_MASK_GPIO28                               BIT(28)
+#define INT_MASK_GPIO27                               BIT(27)
+#define INT_MASK_GPIO26                               BIT(26)
+#define INT_MASK_GPIO25                               BIT(25)
+#define INT_MASK_I2C                                  BIT(12)
+#define INT_MASK_PWM                                  BIT(11)
+#define INT_MASK_DMA1                                 BIT(10)
+#define INT_MASK_DMA                                  BIT(9)
+#define INT_MASK_PCI                                  BIT(8)
+#define INT_MASK_SSP1                                 BIT(7)
+#define INT_MASK_SSP0                                 BIT(6)
+#define INT_MASK_DE                                   BIT(5)
+#define INT_MASK_ZVPORT1_VSYNC                        BIT(4)
+#define INT_MASK_ZVPORT0_VSYNC                        BIT(3)
+#define INT_MASK_CRT_VSYNC                            BIT(2)
+#define INT_MASK_PANEL_VSYNC                          BIT(1)
+#define INT_MASK_VGA_VSYNC                            BIT(0)
 
 #define CURRENT_GATE                                  0x000040
 #define CURRENT_GATE_MCLK_MASK                        (0x3 << 14)
@@ -451,49 +352,27 @@
 #define MODE0_GATE_DMA                                BIT(0)
 
 #define MODE1_GATE                                    0x000048
-#define MODE1_GATE_MCLK                               15:14
-#define MODE1_GATE_MCLK_112MHZ                        0
-#define MODE1_GATE_MCLK_84MHZ                         1
-#define MODE1_GATE_MCLK_56MHZ                         2
-#define MODE1_GATE_MCLK_42MHZ                         3
-#define MODE1_GATE_M2XCLK                             13:12
-#define MODE1_GATE_M2XCLK_336MHZ                      0
-#define MODE1_GATE_M2XCLK_168MHZ                      1
-#define MODE1_GATE_M2XCLK_112MHZ                      2
-#define MODE1_GATE_M2XCLK_84MHZ                       3
-#define MODE1_GATE_VGA                                10:10
-#define MODE1_GATE_VGA_OFF                            0
-#define MODE1_GATE_VGA_ON                             1
-#define MODE1_GATE_PWM                                9:9
-#define MODE1_GATE_PWM_OFF                            0
-#define MODE1_GATE_PWM_ON                             1
-#define MODE1_GATE_I2C                                8:8
-#define MODE1_GATE_I2C_OFF                            0
-#define MODE1_GATE_I2C_ON                             1
-#define MODE1_GATE_SSP                                7:7
-#define MODE1_GATE_SSP_OFF                            0
-#define MODE1_GATE_SSP_ON                             1
-#define MODE1_GATE_GPIO                               6:6
-#define MODE1_GATE_GPIO_OFF                           0
-#define MODE1_GATE_GPIO_ON                            1
-#define MODE1_GATE_ZVPORT                             5:5
-#define MODE1_GATE_ZVPORT_OFF                         0
-#define MODE1_GATE_ZVPORT_ON                          1
-#define MODE1_GATE_CSC                                4:4
-#define MODE1_GATE_CSC_OFF                            0
-#define MODE1_GATE_CSC_ON                             1
-#define MODE1_GATE_DE                                 3:3
-#define MODE1_GATE_DE_OFF                             0
-#define MODE1_GATE_DE_ON                              1
-#define MODE1_GATE_DISPLAY                            2:2
-#define MODE1_GATE_DISPLAY_OFF                        0
-#define MODE1_GATE_DISPLAY_ON                         1
-#define MODE1_GATE_LOCALMEM                           1:1
-#define MODE1_GATE_LOCALMEM_OFF                       0
-#define MODE1_GATE_LOCALMEM_ON                        1
-#define MODE1_GATE_DMA                                0:0
-#define MODE1_GATE_DMA_OFF                            0
-#define MODE1_GATE_DMA_ON                             1
+#define MODE1_GATE_MCLK_MASK                          (0x3 << 14)
+#define MODE1_GATE_MCLK_112MHZ                        (0x0 << 14)
+#define MODE1_GATE_MCLK_84MHZ                         (0x1 << 14)
+#define MODE1_GATE_MCLK_56MHZ                         (0x2 << 14)
+#define MODE1_GATE_MCLK_42MHZ                         (0x3 << 14)
+#define MODE1_GATE_M2XCLK_MASK                        (0x3 << 12)
+#define MODE1_GATE_M2XCLK_336MHZ                      (0x0 << 12)
+#define MODE1_GATE_M2XCLK_168MHZ                      (0x1 << 12)
+#define MODE1_GATE_M2XCLK_112MHZ                      (0x2 << 12)
+#define MODE1_GATE_M2XCLK_84MHZ                       (0x3 << 12)
+#define MODE1_GATE_VGA                                BIT(10)
+#define MODE1_GATE_PWM                                BIT(9)
+#define MODE1_GATE_I2C                                BIT(8)
+#define MODE1_GATE_SSP                                BIT(7)
+#define MODE1_GATE_GPIO                               BIT(6)
+#define MODE1_GATE_ZVPORT                             BIT(5)
+#define MODE1_GATE_CSC                                BIT(4)
+#define MODE1_GATE_DE                                 BIT(3)
+#define MODE1_GATE_DISPLAY                            BIT(2)
+#define MODE1_GATE_LOCALMEM                           BIT(1)
+#define MODE1_GATE_DMA                                BIT(0)
 
 #define POWER_MODE_CTRL                               0x00004C
 #ifdef VALIDATION_CHIP
@@ -507,14 +386,14 @@
 #define POWER_MODE_CTRL_MODE_SLEEP                    (0x2 << 0)
 
 #define PCI_MASTER_BASE                               0x000050
-#define PCI_MASTER_BASE_ADDRESS                       7:0
+#define PCI_MASTER_BASE_ADDRESS_MASK                  0xff
 
 #define DEVICE_ID                                     0x000054
-#define DEVICE_ID_DEVICE_ID                           31:16
-#define DEVICE_ID_REVISION_ID                         7:0
+#define DEVICE_ID_DEVICE_ID_MASK                      (0xffff << 16)
+#define DEVICE_ID_REVISION_ID_MASK                    0xff
 
 #define PLL_CLK_COUNT                                 0x000058
-#define PLL_CLK_COUNT_COUNTER                         15:0
+#define PLL_CLK_COUNT_COUNTER_MASK                    0xffff
 
 #define PANEL_PLL_CTRL                                0x00005C
 #define PLL_CTRL_BYPASS                               BIT(18)
@@ -554,231 +433,104 @@
 #endif
 
 #define GPIO_DATA                                       0x010000
-#define GPIO_DATA_31                                    31:31
-#define GPIO_DATA_30                                    30:30
-#define GPIO_DATA_29                                    29:29
-#define GPIO_DATA_28                                    28:28
-#define GPIO_DATA_27                                    27:27
-#define GPIO_DATA_26                                    26:26
-#define GPIO_DATA_25                                    25:25
-#define GPIO_DATA_24                                    24:24
-#define GPIO_DATA_23                                    23:23
-#define GPIO_DATA_22                                    22:22
-#define GPIO_DATA_21                                    21:21
-#define GPIO_DATA_20                                    20:20
-#define GPIO_DATA_19                                    19:19
-#define GPIO_DATA_18                                    18:18
-#define GPIO_DATA_17                                    17:17
-#define GPIO_DATA_16                                    16:16
-#define GPIO_DATA_15                                    15:15
-#define GPIO_DATA_14                                    14:14
-#define GPIO_DATA_13                                    13:13
-#define GPIO_DATA_12                                    12:12
-#define GPIO_DATA_11                                    11:11
-#define GPIO_DATA_10                                    10:10
-#define GPIO_DATA_9                                     9:9
-#define GPIO_DATA_8                                     8:8
-#define GPIO_DATA_7                                     7:7
-#define GPIO_DATA_6                                     6:6
-#define GPIO_DATA_5                                     5:5
-#define GPIO_DATA_4                                     4:4
-#define GPIO_DATA_3                                     3:3
-#define GPIO_DATA_2                                     2:2
-#define GPIO_DATA_1                                     1:1
-#define GPIO_DATA_0                                     0:0
+#define GPIO_DATA_31                                    BIT(31)
+#define GPIO_DATA_30                                    BIT(30)
+#define GPIO_DATA_29                                    BIT(29)
+#define GPIO_DATA_28                                    BIT(28)
+#define GPIO_DATA_27                                    BIT(27)
+#define GPIO_DATA_26                                    BIT(26)
+#define GPIO_DATA_25                                    BIT(25)
+#define GPIO_DATA_24                                    BIT(24)
+#define GPIO_DATA_23                                    BIT(23)
+#define GPIO_DATA_22                                    BIT(22)
+#define GPIO_DATA_21                                    BIT(21)
+#define GPIO_DATA_20                                    BIT(20)
+#define GPIO_DATA_19                                    BIT(19)
+#define GPIO_DATA_18                                    BIT(18)
+#define GPIO_DATA_17                                    BIT(17)
+#define GPIO_DATA_16                                    BIT(16)
+#define GPIO_DATA_15                                    BIT(15)
+#define GPIO_DATA_14                                    BIT(14)
+#define GPIO_DATA_13                                    BIT(13)
+#define GPIO_DATA_12                                    BIT(12)
+#define GPIO_DATA_11                                    BIT(11)
+#define GPIO_DATA_10                                    BIT(10)
+#define GPIO_DATA_9                                     BIT(9)
+#define GPIO_DATA_8                                     BIT(8)
+#define GPIO_DATA_7                                     BIT(7)
+#define GPIO_DATA_6                                     BIT(6)
+#define GPIO_DATA_5                                     BIT(5)
+#define GPIO_DATA_4                                     BIT(4)
+#define GPIO_DATA_3                                     BIT(3)
+#define GPIO_DATA_2                                     BIT(2)
+#define GPIO_DATA_1                                     BIT(1)
+#define GPIO_DATA_0                                     BIT(0)
 
 #define GPIO_DATA_DIRECTION                             0x010004
-#define GPIO_DATA_DIRECTION_31                          31:31
-#define GPIO_DATA_DIRECTION_31_INPUT                    0
-#define GPIO_DATA_DIRECTION_31_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_30                          30:30
-#define GPIO_DATA_DIRECTION_30_INPUT                    0
-#define GPIO_DATA_DIRECTION_30_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_29                          29:29
-#define GPIO_DATA_DIRECTION_29_INPUT                    0
-#define GPIO_DATA_DIRECTION_29_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_28                          28:28
-#define GPIO_DATA_DIRECTION_28_INPUT                    0
-#define GPIO_DATA_DIRECTION_28_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_27                          27:27
-#define GPIO_DATA_DIRECTION_27_INPUT                    0
-#define GPIO_DATA_DIRECTION_27_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_26                          26:26
-#define GPIO_DATA_DIRECTION_26_INPUT                    0
-#define GPIO_DATA_DIRECTION_26_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_25                          25:25
-#define GPIO_DATA_DIRECTION_25_INPUT                    0
-#define GPIO_DATA_DIRECTION_25_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_24                          24:24
-#define GPIO_DATA_DIRECTION_24_INPUT                    0
-#define GPIO_DATA_DIRECTION_24_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_23                          23:23
-#define GPIO_DATA_DIRECTION_23_INPUT                    0
-#define GPIO_DATA_DIRECTION_23_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_22                          22:22
-#define GPIO_DATA_DIRECTION_22_INPUT                    0
-#define GPIO_DATA_DIRECTION_22_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_21                          21:21
-#define GPIO_DATA_DIRECTION_21_INPUT                    0
-#define GPIO_DATA_DIRECTION_21_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_20                          20:20
-#define GPIO_DATA_DIRECTION_20_INPUT                    0
-#define GPIO_DATA_DIRECTION_20_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_19                          19:19
-#define GPIO_DATA_DIRECTION_19_INPUT                    0
-#define GPIO_DATA_DIRECTION_19_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_18                          18:18
-#define GPIO_DATA_DIRECTION_18_INPUT                    0
-#define GPIO_DATA_DIRECTION_18_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_17                          17:17
-#define GPIO_DATA_DIRECTION_17_INPUT                    0
-#define GPIO_DATA_DIRECTION_17_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_16                          16:16
-#define GPIO_DATA_DIRECTION_16_INPUT                    0
-#define GPIO_DATA_DIRECTION_16_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_15                          15:15
-#define GPIO_DATA_DIRECTION_15_INPUT                    0
-#define GPIO_DATA_DIRECTION_15_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_14                          14:14
-#define GPIO_DATA_DIRECTION_14_INPUT                    0
-#define GPIO_DATA_DIRECTION_14_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_13                          13:13
-#define GPIO_DATA_DIRECTION_13_INPUT                    0
-#define GPIO_DATA_DIRECTION_13_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_12                          12:12
-#define GPIO_DATA_DIRECTION_12_INPUT                    0
-#define GPIO_DATA_DIRECTION_12_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_11                          11:11
-#define GPIO_DATA_DIRECTION_11_INPUT                    0
-#define GPIO_DATA_DIRECTION_11_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_10                          10:10
-#define GPIO_DATA_DIRECTION_10_INPUT                    0
-#define GPIO_DATA_DIRECTION_10_OUTPUT                   1
-#define GPIO_DATA_DIRECTION_9                           9:9
-#define GPIO_DATA_DIRECTION_9_INPUT                     0
-#define GPIO_DATA_DIRECTION_9_OUTPUT                    1
-#define GPIO_DATA_DIRECTION_8                           8:8
-#define GPIO_DATA_DIRECTION_8_INPUT                     0
-#define GPIO_DATA_DIRECTION_8_OUTPUT                    1
-#define GPIO_DATA_DIRECTION_7                           7:7
-#define GPIO_DATA_DIRECTION_7_INPUT                     0
-#define GPIO_DATA_DIRECTION_7_OUTPUT                    1
-#define GPIO_DATA_DIRECTION_6                           6:6
-#define GPIO_DATA_DIRECTION_6_INPUT                     0
-#define GPIO_DATA_DIRECTION_6_OUTPUT                    1
-#define GPIO_DATA_DIRECTION_5                           5:5
-#define GPIO_DATA_DIRECTION_5_INPUT                     0
-#define GPIO_DATA_DIRECTION_5_OUTPUT                    1
-#define GPIO_DATA_DIRECTION_4                           4:4
-#define GPIO_DATA_DIRECTION_4_INPUT                     0
-#define GPIO_DATA_DIRECTION_4_OUTPUT                    1
-#define GPIO_DATA_DIRECTION_3                           3:3
-#define GPIO_DATA_DIRECTION_3_INPUT                     0
-#define GPIO_DATA_DIRECTION_3_OUTPUT                    1
-#define GPIO_DATA_DIRECTION_2                           2:2
-#define GPIO_DATA_DIRECTION_2_INPUT                     0
-#define GPIO_DATA_DIRECTION_2_OUTPUT                    1
-#define GPIO_DATA_DIRECTION_1                           131
-#define GPIO_DATA_DIRECTION_1_INPUT                     0
-#define GPIO_DATA_DIRECTION_1_OUTPUT                    1
-#define GPIO_DATA_DIRECTION_0                           0:0
-#define GPIO_DATA_DIRECTION_0_INPUT                     0
-#define GPIO_DATA_DIRECTION_0_OUTPUT                    1
+#define GPIO_DATA_DIRECTION_31                          BIT(31)
+#define GPIO_DATA_DIRECTION_30                          BIT(30)
+#define GPIO_DATA_DIRECTION_29                          BIT(29)
+#define GPIO_DATA_DIRECTION_28                          BIT(28)
+#define GPIO_DATA_DIRECTION_27                          BIT(27)
+#define GPIO_DATA_DIRECTION_26                          BIT(26)
+#define GPIO_DATA_DIRECTION_25                          BIT(25)
+#define GPIO_DATA_DIRECTION_24                          BIT(24)
+#define GPIO_DATA_DIRECTION_23                          BIT(23)
+#define GPIO_DATA_DIRECTION_22                          BIT(22)
+#define GPIO_DATA_DIRECTION_21                          BIT(21)
+#define GPIO_DATA_DIRECTION_20                          BIT(20)
+#define GPIO_DATA_DIRECTION_19                          BIT(19)
+#define GPIO_DATA_DIRECTION_18                          BIT(18)
+#define GPIO_DATA_DIRECTION_17                          BIT(17)
+#define GPIO_DATA_DIRECTION_16                          BIT(16)
+#define GPIO_DATA_DIRECTION_15                          BIT(15)
+#define GPIO_DATA_DIRECTION_14                          BIT(14)
+#define GPIO_DATA_DIRECTION_13                          BIT(13)
+#define GPIO_DATA_DIRECTION_12                          BIT(12)
+#define GPIO_DATA_DIRECTION_11                          BIT(11)
+#define GPIO_DATA_DIRECTION_10                          BIT(10)
+#define GPIO_DATA_DIRECTION_9                           BIT(9)
+#define GPIO_DATA_DIRECTION_8                           BIT(8)
+#define GPIO_DATA_DIRECTION_7                           BIT(7)
+#define GPIO_DATA_DIRECTION_6                           BIT(6)
+#define GPIO_DATA_DIRECTION_5                           BIT(5)
+#define GPIO_DATA_DIRECTION_4                           BIT(4)
+#define GPIO_DATA_DIRECTION_3                           BIT(3)
+#define GPIO_DATA_DIRECTION_2                           BIT(2)
+#define GPIO_DATA_DIRECTION_1                           BIT(1)
+#define GPIO_DATA_DIRECTION_0                           BIT(0)
 
 #define GPIO_INTERRUPT_SETUP                            0x010008
-#define GPIO_INTERRUPT_SETUP_TRIGGER_31                 22:22
-#define GPIO_INTERRUPT_SETUP_TRIGGER_31_EDGE            0
-#define GPIO_INTERRUPT_SETUP_TRIGGER_31_LEVEL           1
-#define GPIO_INTERRUPT_SETUP_TRIGGER_30                 21:21
-#define GPIO_INTERRUPT_SETUP_TRIGGER_30_EDGE            0
-#define GPIO_INTERRUPT_SETUP_TRIGGER_30_LEVEL           1
-#define GPIO_INTERRUPT_SETUP_TRIGGER_29                 20:20
-#define GPIO_INTERRUPT_SETUP_TRIGGER_29_EDGE            0
-#define GPIO_INTERRUPT_SETUP_TRIGGER_29_LEVEL           1
-#define GPIO_INTERRUPT_SETUP_TRIGGER_28                 19:19
-#define GPIO_INTERRUPT_SETUP_TRIGGER_28_EDGE            0
-#define GPIO_INTERRUPT_SETUP_TRIGGER_28_LEVEL           1
-#define GPIO_INTERRUPT_SETUP_TRIGGER_27                 18:18
-#define GPIO_INTERRUPT_SETUP_TRIGGER_27_EDGE            0
-#define GPIO_INTERRUPT_SETUP_TRIGGER_27_LEVEL           1
-#define GPIO_INTERRUPT_SETUP_TRIGGER_26                 17:17
-#define GPIO_INTERRUPT_SETUP_TRIGGER_26_EDGE            0
-#define GPIO_INTERRUPT_SETUP_TRIGGER_26_LEVEL           1
-#define GPIO_INTERRUPT_SETUP_TRIGGER_25                 16:16
-#define GPIO_INTERRUPT_SETUP_TRIGGER_25_EDGE            0
-#define GPIO_INTERRUPT_SETUP_TRIGGER_25_LEVEL           1
-#define GPIO_INTERRUPT_SETUP_ACTIVE_31                  14:14
-#define GPIO_INTERRUPT_SETUP_ACTIVE_31_LOW              0
-#define GPIO_INTERRUPT_SETUP_ACTIVE_31_HIGH             1
-#define GPIO_INTERRUPT_SETUP_ACTIVE_30                  13:13
-#define GPIO_INTERRUPT_SETUP_ACTIVE_30_LOW              0
-#define GPIO_INTERRUPT_SETUP_ACTIVE_30_HIGH             1
-#define GPIO_INTERRUPT_SETUP_ACTIVE_29                  12:12
-#define GPIO_INTERRUPT_SETUP_ACTIVE_29_LOW              0
-#define GPIO_INTERRUPT_SETUP_ACTIVE_29_HIGH             1
-#define GPIO_INTERRUPT_SETUP_ACTIVE_28                  11:11
-#define GPIO_INTERRUPT_SETUP_ACTIVE_28_LOW              0
-#define GPIO_INTERRUPT_SETUP_ACTIVE_28_HIGH             1
-#define GPIO_INTERRUPT_SETUP_ACTIVE_27                  10:10
-#define GPIO_INTERRUPT_SETUP_ACTIVE_27_LOW              0
-#define GPIO_INTERRUPT_SETUP_ACTIVE_27_HIGH             1
-#define GPIO_INTERRUPT_SETUP_ACTIVE_26                  9:9
-#define GPIO_INTERRUPT_SETUP_ACTIVE_26_LOW              0
-#define GPIO_INTERRUPT_SETUP_ACTIVE_26_HIGH             1
-#define GPIO_INTERRUPT_SETUP_ACTIVE_25                  8:8
-#define GPIO_INTERRUPT_SETUP_ACTIVE_25_LOW              0
-#define GPIO_INTERRUPT_SETUP_ACTIVE_25_HIGH             1
-#define GPIO_INTERRUPT_SETUP_ENABLE_31                  6:6
-#define GPIO_INTERRUPT_SETUP_ENABLE_31_GPIO             0
-#define GPIO_INTERRUPT_SETUP_ENABLE_31_INTERRUPT        1
-#define GPIO_INTERRUPT_SETUP_ENABLE_30                  5:5
-#define GPIO_INTERRUPT_SETUP_ENABLE_30_GPIO             0
-#define GPIO_INTERRUPT_SETUP_ENABLE_30_INTERRUPT        1
-#define GPIO_INTERRUPT_SETUP_ENABLE_29                  4:4
-#define GPIO_INTERRUPT_SETUP_ENABLE_29_GPIO             0
-#define GPIO_INTERRUPT_SETUP_ENABLE_29_INTERRUPT        1
-#define GPIO_INTERRUPT_SETUP_ENABLE_28                  3:3
-#define GPIO_INTERRUPT_SETUP_ENABLE_28_GPIO             0
-#define GPIO_INTERRUPT_SETUP_ENABLE_28_INTERRUPT        1
-#define GPIO_INTERRUPT_SETUP_ENABLE_27                  2:2
-#define GPIO_INTERRUPT_SETUP_ENABLE_27_GPIO             0
-#define GPIO_INTERRUPT_SETUP_ENABLE_27_INTERRUPT        1
-#define GPIO_INTERRUPT_SETUP_ENABLE_26                  1:1
-#define GPIO_INTERRUPT_SETUP_ENABLE_26_GPIO             0
-#define GPIO_INTERRUPT_SETUP_ENABLE_26_INTERRUPT        1
-#define GPIO_INTERRUPT_SETUP_ENABLE_25                  0:0
-#define GPIO_INTERRUPT_SETUP_ENABLE_25_GPIO             0
-#define GPIO_INTERRUPT_SETUP_ENABLE_25_INTERRUPT        1
+#define GPIO_INTERRUPT_SETUP_TRIGGER_31                 BIT(22)
+#define GPIO_INTERRUPT_SETUP_TRIGGER_30                 BIT(21)
+#define GPIO_INTERRUPT_SETUP_TRIGGER_29                 BIT(20)
+#define GPIO_INTERRUPT_SETUP_TRIGGER_28                 BIT(19)
+#define GPIO_INTERRUPT_SETUP_TRIGGER_27                 BIT(18)
+#define GPIO_INTERRUPT_SETUP_TRIGGER_26                 BIT(17)
+#define GPIO_INTERRUPT_SETUP_TRIGGER_25                 BIT(16)
+#define GPIO_INTERRUPT_SETUP_ACTIVE_31                  BIT(14)
+#define GPIO_INTERRUPT_SETUP_ACTIVE_30                  BIT(13)
+#define GPIO_INTERRUPT_SETUP_ACTIVE_29                  BIT(12)
+#define GPIO_INTERRUPT_SETUP_ACTIVE_28                  BIT(11)
+#define GPIO_INTERRUPT_SETUP_ACTIVE_27                  BIT(10)
+#define GPIO_INTERRUPT_SETUP_ACTIVE_26                  BIT(9)
+#define GPIO_INTERRUPT_SETUP_ACTIVE_25                  BIT(8)
+#define GPIO_INTERRUPT_SETUP_ENABLE_31                  BIT(6)
+#define GPIO_INTERRUPT_SETUP_ENABLE_30                  BIT(5)
+#define GPIO_INTERRUPT_SETUP_ENABLE_29                  BIT(4)
+#define GPIO_INTERRUPT_SETUP_ENABLE_28                  BIT(3)
+#define GPIO_INTERRUPT_SETUP_ENABLE_27                  BIT(2)
+#define GPIO_INTERRUPT_SETUP_ENABLE_26                  BIT(1)
+#define GPIO_INTERRUPT_SETUP_ENABLE_25                  BIT(0)
 
 #define GPIO_INTERRUPT_STATUS                           0x01000C
-#define GPIO_INTERRUPT_STATUS_31                        22:22
-#define GPIO_INTERRUPT_STATUS_31_INACTIVE               0
-#define GPIO_INTERRUPT_STATUS_31_ACTIVE                 1
-#define GPIO_INTERRUPT_STATUS_31_RESET                  1
-#define GPIO_INTERRUPT_STATUS_30                        21:21
-#define GPIO_INTERRUPT_STATUS_30_INACTIVE               0
-#define GPIO_INTERRUPT_STATUS_30_ACTIVE                 1
-#define GPIO_INTERRUPT_STATUS_30_RESET                  1
-#define GPIO_INTERRUPT_STATUS_29                        20:20
-#define GPIO_INTERRUPT_STATUS_29_INACTIVE               0
-#define GPIO_INTERRUPT_STATUS_29_ACTIVE                 1
-#define GPIO_INTERRUPT_STATUS_29_RESET                  1
-#define GPIO_INTERRUPT_STATUS_28                        19:19
-#define GPIO_INTERRUPT_STATUS_28_INACTIVE               0
-#define GPIO_INTERRUPT_STATUS_28_ACTIVE                 1
-#define GPIO_INTERRUPT_STATUS_28_RESET                  1
-#define GPIO_INTERRUPT_STATUS_27                        18:18
-#define GPIO_INTERRUPT_STATUS_27_INACTIVE               0
-#define GPIO_INTERRUPT_STATUS_27_ACTIVE                 1
-#define GPIO_INTERRUPT_STATUS_27_RESET                  1
-#define GPIO_INTERRUPT_STATUS_26                        17:17
-#define GPIO_INTERRUPT_STATUS_26_INACTIVE               0
-#define GPIO_INTERRUPT_STATUS_26_ACTIVE                 1
-#define GPIO_INTERRUPT_STATUS_26_RESET                  1
-#define GPIO_INTERRUPT_STATUS_25                        16:16
-#define GPIO_INTERRUPT_STATUS_25_INACTIVE               0
-#define GPIO_INTERRUPT_STATUS_25_ACTIVE                 1
-#define GPIO_INTERRUPT_STATUS_25_RESET                  1
+#define GPIO_INTERRUPT_STATUS_31                        BIT(22)
+#define GPIO_INTERRUPT_STATUS_30                        BIT(21)
+#define GPIO_INTERRUPT_STATUS_29                        BIT(20)
+#define GPIO_INTERRUPT_STATUS_28                        BIT(19)
+#define GPIO_INTERRUPT_STATUS_27                        BIT(18)
+#define GPIO_INTERRUPT_STATUS_26                        BIT(17)
+#define GPIO_INTERRUPT_STATUS_25                        BIT(16)
 
 
 #define PANEL_DISPLAY_CTRL                            0x080000
@@ -818,14 +570,14 @@
 #define PANEL_DISPLAY_CTRL_FORMAT_32                  (0x2 << 0)
 
 #define PANEL_PAN_CTRL                                0x080004
-#define PANEL_PAN_CTRL_VERTICAL_PAN                   31:24
-#define PANEL_PAN_CTRL_VERTICAL_VSYNC                 21:16
-#define PANEL_PAN_CTRL_HORIZONTAL_PAN                 15:8
-#define PANEL_PAN_CTRL_HORIZONTAL_VSYNC               5:0
+#define PANEL_PAN_CTRL_VERTICAL_PAN_MASK              (0xff << 24)
+#define PANEL_PAN_CTRL_VERTICAL_VSYNC_MASK            (0x3f << 16)
+#define PANEL_PAN_CTRL_HORIZONTAL_PAN_MASK            (0xff << 8)
+#define PANEL_PAN_CTRL_HORIZONTAL_VSYNC_MASK          0x3f
 
 #define PANEL_COLOR_KEY                               0x080008
-#define PANEL_COLOR_KEY_MASK                          31:16
-#define PANEL_COLOR_KEY_VALUE                         15:0
+#define PANEL_COLOR_KEY_MASK_MASK                     (0xffff << 16)
+#define PANEL_COLOR_KEY_VALUE_MASK                    0xffff
 
 #define PANEL_FB_ADDRESS                              0x08000C
 #define PANEL_FB_ADDRESS_STATUS                       BIT(31)
@@ -863,454 +615,383 @@
 #define PANEL_HORIZONTAL_TOTAL_DISPLAY_END_MASK       0xfff
 
 #define PANEL_HORIZONTAL_SYNC                         0x080028
-#define PANEL_HORIZONTAL_SYNC_WIDTH                   23:16
-#define PANEL_HORIZONTAL_SYNC_START                   11:0
+#define PANEL_HORIZONTAL_SYNC_WIDTH_SHIFT             16
+#define PANEL_HORIZONTAL_SYNC_WIDTH_MASK              (0xff << 16)
+#define PANEL_HORIZONTAL_SYNC_START_MASK              0xfff
 
 #define PANEL_VERTICAL_TOTAL                          0x08002C
-#define PANEL_VERTICAL_TOTAL_TOTAL                    26:16
-#define PANEL_VERTICAL_TOTAL_DISPLAY_END              10:0
+#define PANEL_VERTICAL_TOTAL_TOTAL_SHIFT              16
+#define PANEL_VERTICAL_TOTAL_TOTAL_MASK               (0x7ff << 16)
+#define PANEL_VERTICAL_TOTAL_DISPLAY_END_MASK         0x7ff
 
 #define PANEL_VERTICAL_SYNC                           0x080030
-#define PANEL_VERTICAL_SYNC_HEIGHT                    21:16
-#define PANEL_VERTICAL_SYNC_START                     10:0
+#define PANEL_VERTICAL_SYNC_HEIGHT_SHIFT              16
+#define PANEL_VERTICAL_SYNC_HEIGHT_MASK               (0x3f << 16)
+#define PANEL_VERTICAL_SYNC_START_MASK                0x7ff
 
 #define PANEL_CURRENT_LINE                            0x080034
-#define PANEL_CURRENT_LINE_LINE                       10:0
+#define PANEL_CURRENT_LINE_LINE_MASK                  0x7ff
 
 /* Video Control */
 
 #define VIDEO_DISPLAY_CTRL                              0x080040
-#define VIDEO_DISPLAY_CTRL_LINE_BUFFER                  18:18
-#define VIDEO_DISPLAY_CTRL_LINE_BUFFER_DISABLE          0
-#define VIDEO_DISPLAY_CTRL_LINE_BUFFER_ENABLE           1
-#define VIDEO_DISPLAY_CTRL_FIFO                         17:16
-#define VIDEO_DISPLAY_CTRL_FIFO_1                       0
-#define VIDEO_DISPLAY_CTRL_FIFO_3                       1
-#define VIDEO_DISPLAY_CTRL_FIFO_7                       2
-#define VIDEO_DISPLAY_CTRL_FIFO_11                      3
-#define VIDEO_DISPLAY_CTRL_BUFFER                       15:15
-#define VIDEO_DISPLAY_CTRL_BUFFER_0                     0
-#define VIDEO_DISPLAY_CTRL_BUFFER_1                     1
-#define VIDEO_DISPLAY_CTRL_CAPTURE                      14:14
-#define VIDEO_DISPLAY_CTRL_CAPTURE_DISABLE              0
-#define VIDEO_DISPLAY_CTRL_CAPTURE_ENABLE               1
-#define VIDEO_DISPLAY_CTRL_DOUBLE_BUFFER                13:13
-#define VIDEO_DISPLAY_CTRL_DOUBLE_BUFFER_DISABLE        0
-#define VIDEO_DISPLAY_CTRL_DOUBLE_BUFFER_ENABLE         1
-#define VIDEO_DISPLAY_CTRL_BYTE_SWAP                    12:12
-#define VIDEO_DISPLAY_CTRL_BYTE_SWAP_DISABLE            0
-#define VIDEO_DISPLAY_CTRL_BYTE_SWAP_ENABLE             1
-#define VIDEO_DISPLAY_CTRL_VERTICAL_SCALE               11:11
-#define VIDEO_DISPLAY_CTRL_VERTICAL_SCALE_NORMAL        0
-#define VIDEO_DISPLAY_CTRL_VERTICAL_SCALE_HALF          1
-#define VIDEO_DISPLAY_CTRL_HORIZONTAL_SCALE             10:10
-#define VIDEO_DISPLAY_CTRL_HORIZONTAL_SCALE_NORMAL      0
-#define VIDEO_DISPLAY_CTRL_HORIZONTAL_SCALE_HALF        1
-#define VIDEO_DISPLAY_CTRL_VERTICAL_MODE                9:9
-#define VIDEO_DISPLAY_CTRL_VERTICAL_MODE_REPLICATE      0
-#define VIDEO_DISPLAY_CTRL_VERTICAL_MODE_INTERPOLATE    1
-#define VIDEO_DISPLAY_CTRL_HORIZONTAL_MODE              8:8
-#define VIDEO_DISPLAY_CTRL_HORIZONTAL_MODE_REPLICATE    0
-#define VIDEO_DISPLAY_CTRL_HORIZONTAL_MODE_INTERPOLATE  1
-#define VIDEO_DISPLAY_CTRL_PIXEL                        7:4
-#define VIDEO_DISPLAY_CTRL_GAMMA                        3:3
-#define VIDEO_DISPLAY_CTRL_GAMMA_DISABLE                0
-#define VIDEO_DISPLAY_CTRL_GAMMA_ENABLE                 1
-#define VIDEO_DISPLAY_CTRL_FORMAT                       1:0
-#define VIDEO_DISPLAY_CTRL_FORMAT_8                     0
-#define VIDEO_DISPLAY_CTRL_FORMAT_16                    1
-#define VIDEO_DISPLAY_CTRL_FORMAT_32                    2
-#define VIDEO_DISPLAY_CTRL_FORMAT_YUV                   3
+#define VIDEO_DISPLAY_CTRL_LINE_BUFFER                  BIT(18)
+#define VIDEO_DISPLAY_CTRL_FIFO_MASK                    (0x3 << 16)
+#define VIDEO_DISPLAY_CTRL_FIFO_1                       (0x0 << 16)
+#define VIDEO_DISPLAY_CTRL_FIFO_3                       (0x1 << 16)
+#define VIDEO_DISPLAY_CTRL_FIFO_7                       (0x2 << 16)
+#define VIDEO_DISPLAY_CTRL_FIFO_11                      (0x3 << 16)
+#define VIDEO_DISPLAY_CTRL_BUFFER                       BIT(15)
+#define VIDEO_DISPLAY_CTRL_CAPTURE                      BIT(14)
+#define VIDEO_DISPLAY_CTRL_DOUBLE_BUFFER                BIT(13)
+#define VIDEO_DISPLAY_CTRL_BYTE_SWAP                    BIT(12)
+#define VIDEO_DISPLAY_CTRL_VERTICAL_SCALE               BIT(11)
+#define VIDEO_DISPLAY_CTRL_HORIZONTAL_SCALE             BIT(10)
+#define VIDEO_DISPLAY_CTRL_VERTICAL_MODE                BIT(9)
+#define VIDEO_DISPLAY_CTRL_HORIZONTAL_MODE              BIT(8)
+#define VIDEO_DISPLAY_CTRL_PIXEL_MASK                   (0xf << 4)
+#define VIDEO_DISPLAY_CTRL_GAMMA                        BIT(3)
+#define VIDEO_DISPLAY_CTRL_FORMAT_MASK                  0x3
+#define VIDEO_DISPLAY_CTRL_FORMAT_8                     0x0
+#define VIDEO_DISPLAY_CTRL_FORMAT_16                    0x1
+#define VIDEO_DISPLAY_CTRL_FORMAT_32                    0x2
+#define VIDEO_DISPLAY_CTRL_FORMAT_YUV                   0x3
 
 #define VIDEO_FB_0_ADDRESS                            0x080044
-#define VIDEO_FB_0_ADDRESS_STATUS                     31:31
-#define VIDEO_FB_0_ADDRESS_STATUS_CURRENT             0
-#define VIDEO_FB_0_ADDRESS_STATUS_PENDING             1
-#define VIDEO_FB_0_ADDRESS_EXT                        27:27
-#define VIDEO_FB_0_ADDRESS_EXT_LOCAL                  0
-#define VIDEO_FB_0_ADDRESS_EXT_EXTERNAL               1
-#define VIDEO_FB_0_ADDRESS_ADDRESS                    25:0
+#define VIDEO_FB_0_ADDRESS_STATUS                     BIT(31)
+#define VIDEO_FB_0_ADDRESS_EXT                        BIT(27)
+#define VIDEO_FB_0_ADDRESS_ADDRESS_MASK               0x3ffffff
 
 #define VIDEO_FB_WIDTH                                0x080048
-#define VIDEO_FB_WIDTH_WIDTH                          29:16
-#define VIDEO_FB_WIDTH_OFFSET                         13:0
+#define VIDEO_FB_WIDTH_WIDTH_MASK                     (0x3fff << 16)
+#define VIDEO_FB_WIDTH_OFFSET_MASK                    0x3fff
 
 #define VIDEO_FB_0_LAST_ADDRESS                       0x08004C
-#define VIDEO_FB_0_LAST_ADDRESS_EXT                   27:27
-#define VIDEO_FB_0_LAST_ADDRESS_EXT_LOCAL             0
-#define VIDEO_FB_0_LAST_ADDRESS_EXT_EXTERNAL          1
-#define VIDEO_FB_0_LAST_ADDRESS_ADDRESS               25:0
+#define VIDEO_FB_0_LAST_ADDRESS_EXT                   BIT(27)
+#define VIDEO_FB_0_LAST_ADDRESS_ADDRESS_MASK          0x3ffffff
 
 #define VIDEO_PLANE_TL                                0x080050
-#define VIDEO_PLANE_TL_TOP                            26:16
-#define VIDEO_PLANE_TL_LEFT                           10:0
+#define VIDEO_PLANE_TL_TOP_MASK                       (0x7ff << 16)
+#define VIDEO_PLANE_TL_LEFT_MASK                      0x7ff
 
 #define VIDEO_PLANE_BR                                0x080054
-#define VIDEO_PLANE_BR_BOTTOM                         26:16
-#define VIDEO_PLANE_BR_RIGHT                          10:0
+#define VIDEO_PLANE_BR_BOTTOM_MASK                    (0x7ff << 16)
+#define VIDEO_PLANE_BR_RIGHT_MASK                     0x7ff
 
 #define VIDEO_SCALE                                   0x080058
-#define VIDEO_SCALE_VERTICAL_MODE                     31:31
-#define VIDEO_SCALE_VERTICAL_MODE_EXPAND              0
-#define VIDEO_SCALE_VERTICAL_MODE_SHRINK              1
-#define VIDEO_SCALE_VERTICAL_SCALE                    27:16
-#define VIDEO_SCALE_HORIZONTAL_MODE                   15:15
-#define VIDEO_SCALE_HORIZONTAL_MODE_EXPAND            0
-#define VIDEO_SCALE_HORIZONTAL_MODE_SHRINK            1
-#define VIDEO_SCALE_HORIZONTAL_SCALE                  11:0
+#define VIDEO_SCALE_VERTICAL_MODE                     BIT(31)
+#define VIDEO_SCALE_VERTICAL_SCALE_MASK               (0xfff << 16)
+#define VIDEO_SCALE_HORIZONTAL_MODE                   BIT(15)
+#define VIDEO_SCALE_HORIZONTAL_SCALE_MASK             0xfff
 
 #define VIDEO_INITIAL_SCALE                           0x08005C
-#define VIDEO_INITIAL_SCALE_FB_1                      27:16
-#define VIDEO_INITIAL_SCALE_FB_0                      11:0
+#define VIDEO_INITIAL_SCALE_FB_1_MASK                 (0xfff << 16)
+#define VIDEO_INITIAL_SCALE_FB_0_MASK                 0xfff
 
 #define VIDEO_YUV_CONSTANTS                           0x080060
-#define VIDEO_YUV_CONSTANTS_Y                         31:24
-#define VIDEO_YUV_CONSTANTS_R                         23:16
-#define VIDEO_YUV_CONSTANTS_G                         15:8
-#define VIDEO_YUV_CONSTANTS_B                         7:0
+#define VIDEO_YUV_CONSTANTS_Y_MASK                    (0xff << 24)
+#define VIDEO_YUV_CONSTANTS_R_MASK                    (0xff << 16)
+#define VIDEO_YUV_CONSTANTS_G_MASK                    (0xff << 8)
+#define VIDEO_YUV_CONSTANTS_B_MASK                    0xff
 
 #define VIDEO_FB_1_ADDRESS                            0x080064
-#define VIDEO_FB_1_ADDRESS_STATUS                     31:31
-#define VIDEO_FB_1_ADDRESS_STATUS_CURRENT             0
-#define VIDEO_FB_1_ADDRESS_STATUS_PENDING             1
-#define VIDEO_FB_1_ADDRESS_EXT                        27:27
-#define VIDEO_FB_1_ADDRESS_EXT_LOCAL                  0
-#define VIDEO_FB_1_ADDRESS_EXT_EXTERNAL               1
-#define VIDEO_FB_1_ADDRESS_ADDRESS                    25:0
+#define VIDEO_FB_1_ADDRESS_STATUS                     BIT(31)
+#define VIDEO_FB_1_ADDRESS_EXT                        BIT(27)
+#define VIDEO_FB_1_ADDRESS_ADDRESS_MASK               0x3ffffff
 
 #define VIDEO_FB_1_LAST_ADDRESS                       0x080068
-#define VIDEO_FB_1_LAST_ADDRESS_EXT                   27:27
-#define VIDEO_FB_1_LAST_ADDRESS_EXT_LOCAL             0
-#define VIDEO_FB_1_LAST_ADDRESS_EXT_EXTERNAL          1
-#define VIDEO_FB_1_LAST_ADDRESS_ADDRESS               25:0
+#define VIDEO_FB_1_LAST_ADDRESS_EXT                   BIT(27)
+#define VIDEO_FB_1_LAST_ADDRESS_ADDRESS_MASK          0x3ffffff
 
 /* Video Alpha Control */
 
 #define VIDEO_ALPHA_DISPLAY_CTRL                        0x080080
-#define VIDEO_ALPHA_DISPLAY_CTRL_SELECT                 28:28
-#define VIDEO_ALPHA_DISPLAY_CTRL_SELECT_PER_PIXEL       0
-#define VIDEO_ALPHA_DISPLAY_CTRL_SELECT_ALPHA           1
-#define VIDEO_ALPHA_DISPLAY_CTRL_ALPHA                  27:24
-#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO                   17:16
-#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_1                 0
-#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_3                 1
-#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_7                 2
-#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_11                3
-#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_SCALE             11:11
-#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_SCALE_NORMAL      0
-#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_SCALE_HALF        1
-#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_SCALE             10:10
-#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_SCALE_NORMAL      0
-#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_SCALE_HALF        1
-#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_MODE              9:9
-#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_MODE_REPLICATE    0
-#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_MODE_INTERPOLATE  1
-#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_MODE              8:8
-#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_MODE_REPLICATE    0
-#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_MODE_INTERPOLATE  1
-#define VIDEO_ALPHA_DISPLAY_CTRL_PIXEL                  7:4
-#define VIDEO_ALPHA_DISPLAY_CTRL_CHROMA_KEY             3:3
-#define VIDEO_ALPHA_DISPLAY_CTRL_CHROMA_KEY_DISABLE     0
-#define VIDEO_ALPHA_DISPLAY_CTRL_CHROMA_KEY_ENABLE      1
-#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT                 1:0
-#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_8               0
-#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_16              1
-#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_ALPHA_4_4       2
-#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_ALPHA_4_4_4_4   3
+#define VIDEO_ALPHA_DISPLAY_CTRL_SELECT                 BIT(28)
+#define VIDEO_ALPHA_DISPLAY_CTRL_ALPHA_MASK             (0xf << 24)
+#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_MASK              (0x3 << 16)
+#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_1                 (0x0 << 16)
+#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_3                 (0x1 << 16)
+#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_7                 (0x2 << 16)
+#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_11                (0x3 << 16)
+#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_SCALE             BIT(11)
+#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_SCALE             BIT(10)
+#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_MODE              BIT(9)
+#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_MODE              BIT(8)
+#define VIDEO_ALPHA_DISPLAY_CTRL_PIXEL_MASK             (0xf << 4)
+#define VIDEO_ALPHA_DISPLAY_CTRL_CHROMA_KEY             BIT(3)
+#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_MASK            0x3
+#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_8               0x0
+#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_16              0x1
+#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_ALPHA_4_4       0x2
+#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_ALPHA_4_4_4_4   0x3
 
 #define VIDEO_ALPHA_FB_ADDRESS                        0x080084
-#define VIDEO_ALPHA_FB_ADDRESS_STATUS                 31:31
-#define VIDEO_ALPHA_FB_ADDRESS_STATUS_CURRENT         0
-#define VIDEO_ALPHA_FB_ADDRESS_STATUS_PENDING         1
-#define VIDEO_ALPHA_FB_ADDRESS_EXT                    27:27
-#define VIDEO_ALPHA_FB_ADDRESS_EXT_LOCAL              0
-#define VIDEO_ALPHA_FB_ADDRESS_EXT_EXTERNAL           1
-#define VIDEO_ALPHA_FB_ADDRESS_ADDRESS                25:0
+#define VIDEO_ALPHA_FB_ADDRESS_STATUS                 BIT(31)
+#define VIDEO_ALPHA_FB_ADDRESS_EXT                    BIT(27)
+#define VIDEO_ALPHA_FB_ADDRESS_ADDRESS_MASK           0x3ffffff
 
 #define VIDEO_ALPHA_FB_WIDTH                          0x080088
-#define VIDEO_ALPHA_FB_WIDTH_WIDTH                    29:16
-#define VIDEO_ALPHA_FB_WIDTH_OFFSET                   13:0
+#define VIDEO_ALPHA_FB_WIDTH_WIDTH_MASK               (0x3fff << 16)
+#define VIDEO_ALPHA_FB_WIDTH_OFFSET_MASK              0x3fff
 
 #define VIDEO_ALPHA_FB_LAST_ADDRESS                   0x08008C
-#define VIDEO_ALPHA_FB_LAST_ADDRESS_EXT               27:27
-#define VIDEO_ALPHA_FB_LAST_ADDRESS_EXT_LOCAL         0
-#define VIDEO_ALPHA_FB_LAST_ADDRESS_EXT_EXTERNAL      1
-#define VIDEO_ALPHA_FB_LAST_ADDRESS_ADDRESS           25:0
+#define VIDEO_ALPHA_FB_LAST_ADDRESS_EXT               BIT(27)
+#define VIDEO_ALPHA_FB_LAST_ADDRESS_ADDRESS_MASK      0x3ffffff
 
 #define VIDEO_ALPHA_PLANE_TL                          0x080090
-#define VIDEO_ALPHA_PLANE_TL_TOP                      26:16
-#define VIDEO_ALPHA_PLANE_TL_LEFT                     10:0
+#define VIDEO_ALPHA_PLANE_TL_TOP_MASK                 (0x7ff << 16)
+#define VIDEO_ALPHA_PLANE_TL_LEFT_MASK                0x7ff
 
 #define VIDEO_ALPHA_PLANE_BR                          0x080094
-#define VIDEO_ALPHA_PLANE_BR_BOTTOM                   26:16
-#define VIDEO_ALPHA_PLANE_BR_RIGHT                    10:0
+#define VIDEO_ALPHA_PLANE_BR_BOTTOM_MASK              (0x7ff << 16)
+#define VIDEO_ALPHA_PLANE_BR_RIGHT_MASK               0x7ff
 
 #define VIDEO_ALPHA_SCALE                             0x080098
-#define VIDEO_ALPHA_SCALE_VERTICAL_MODE               31:31
-#define VIDEO_ALPHA_SCALE_VERTICAL_MODE_EXPAND        0
-#define VIDEO_ALPHA_SCALE_VERTICAL_MODE_SHRINK        1
-#define VIDEO_ALPHA_SCALE_VERTICAL_SCALE              27:16
-#define VIDEO_ALPHA_SCALE_HORIZONTAL_MODE             15:15
-#define VIDEO_ALPHA_SCALE_HORIZONTAL_MODE_EXPAND      0
-#define VIDEO_ALPHA_SCALE_HORIZONTAL_MODE_SHRINK      1
-#define VIDEO_ALPHA_SCALE_HORIZONTAL_SCALE            11:0
+#define VIDEO_ALPHA_SCALE_VERTICAL_MODE               BIT(31)
+#define VIDEO_ALPHA_SCALE_VERTICAL_SCALE_MASK         (0xfff << 16)
+#define VIDEO_ALPHA_SCALE_HORIZONTAL_MODE             BIT(15)
+#define VIDEO_ALPHA_SCALE_HORIZONTAL_SCALE_MASK       0xfff
 
 #define VIDEO_ALPHA_INITIAL_SCALE                     0x08009C
-#define VIDEO_ALPHA_INITIAL_SCALE_VERTICAL            27:16
-#define VIDEO_ALPHA_INITIAL_SCALE_HORIZONTAL          11:0
+#define VIDEO_ALPHA_INITIAL_SCALE_VERTICAL_MASK       (0xfff << 16)
+#define VIDEO_ALPHA_INITIAL_SCALE_HORIZONTAL_MASK     0xfff
 
 #define VIDEO_ALPHA_CHROMA_KEY                        0x0800A0
-#define VIDEO_ALPHA_CHROMA_KEY_MASK                   31:16
-#define VIDEO_ALPHA_CHROMA_KEY_VALUE                  15:0
+#define VIDEO_ALPHA_CHROMA_KEY_MASK_MASK              (0xffff << 16)
+#define VIDEO_ALPHA_CHROMA_KEY_VALUE_MASK             0xffff
 
 #define VIDEO_ALPHA_COLOR_LOOKUP_01                   0x0800A4
-#define VIDEO_ALPHA_COLOR_LOOKUP_01_1                 31:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_01_1_RED             31:27
-#define VIDEO_ALPHA_COLOR_LOOKUP_01_1_GREEN           26:21
-#define VIDEO_ALPHA_COLOR_LOOKUP_01_1_BLUE            20:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_01_0                 15:0
-#define VIDEO_ALPHA_COLOR_LOOKUP_01_0_RED             15:11
-#define VIDEO_ALPHA_COLOR_LOOKUP_01_0_GREEN           10:5
-#define VIDEO_ALPHA_COLOR_LOOKUP_01_0_BLUE            4:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_1_MASK            (0xffff << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_1_RED_MASK        (0x1f << 27)
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_1_GREEN_MASK      (0x3f << 21)
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_1_BLUE_MASK       (0x1f << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_0_MASK            0xffff
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_0_RED_MASK        (0x1f << 11)
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_0_GREEN_MASK      (0x3f << 5)
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_0_BLUE_MASK       0x1f
 
 #define VIDEO_ALPHA_COLOR_LOOKUP_23                   0x0800A8
-#define VIDEO_ALPHA_COLOR_LOOKUP_23_3                 31:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_23_3_RED             31:27
-#define VIDEO_ALPHA_COLOR_LOOKUP_23_3_GREEN           26:21
-#define VIDEO_ALPHA_COLOR_LOOKUP_23_3_BLUE            20:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_23_2                 15:0
-#define VIDEO_ALPHA_COLOR_LOOKUP_23_2_RED             15:11
-#define VIDEO_ALPHA_COLOR_LOOKUP_23_2_GREEN           10:5
-#define VIDEO_ALPHA_COLOR_LOOKUP_23_2_BLUE            4:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_3_MASK            (0xffff << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_3_RED_MASK        (0x1f << 27)
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_3_GREEN_MASK      (0x3f << 21)
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_3_BLUE_MASK       (0x1f << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_2_MASK            0xffff
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_2_RED_MASK        (0x1f << 11)
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_2_GREEN_MASK      (0x3f << 5)
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_2_BLUE_MASK       0x1f
 
 #define VIDEO_ALPHA_COLOR_LOOKUP_45                   0x0800AC
-#define VIDEO_ALPHA_COLOR_LOOKUP_45_5                 31:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_45_5_RED             31:27
-#define VIDEO_ALPHA_COLOR_LOOKUP_45_5_GREEN           26:21
-#define VIDEO_ALPHA_COLOR_LOOKUP_45_5_BLUE            20:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_45_4                 15:0
-#define VIDEO_ALPHA_COLOR_LOOKUP_45_4_RED             15:11
-#define VIDEO_ALPHA_COLOR_LOOKUP_45_4_GREEN           10:5
-#define VIDEO_ALPHA_COLOR_LOOKUP_45_4_BLUE            4:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_5_MASK            (0xffff << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_5_RED_MASK        (0x1f << 27)
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_5_GREEN_MASK      (0x3f << 21)
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_5_BLUE_MASK       (0x1f << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_4_MASK            0xffff
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_4_RED_MASK        (0x1f << 11)
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_4_GREEN_MASK      (0x3f << 5)
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_4_BLUE_MASK       0x1f
 
 #define VIDEO_ALPHA_COLOR_LOOKUP_67                   0x0800B0
-#define VIDEO_ALPHA_COLOR_LOOKUP_67_7                 31:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_67_7_RED             31:27
-#define VIDEO_ALPHA_COLOR_LOOKUP_67_7_GREEN           26:21
-#define VIDEO_ALPHA_COLOR_LOOKUP_67_7_BLUE            20:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_67_6                 15:0
-#define VIDEO_ALPHA_COLOR_LOOKUP_67_6_RED             15:11
-#define VIDEO_ALPHA_COLOR_LOOKUP_67_6_GREEN           10:5
-#define VIDEO_ALPHA_COLOR_LOOKUP_67_6_BLUE            4:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_7_MASK            (0xffff << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_7_RED_MASK        (0x1f << 27)
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_7_GREEN_MASK      (0x3f << 21)
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_7_BLUE_MASK       (0x1f << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_6_MASK            0xffff
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_6_RED_MASK        (0x1f << 11)
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_6_GREEN_MASK      (0x3f << 5)
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_6_BLUE_MASK       0x1f
 
 #define VIDEO_ALPHA_COLOR_LOOKUP_89                   0x0800B4
-#define VIDEO_ALPHA_COLOR_LOOKUP_89_9                 31:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_89_9_RED             31:27
-#define VIDEO_ALPHA_COLOR_LOOKUP_89_9_GREEN           26:21
-#define VIDEO_ALPHA_COLOR_LOOKUP_89_9_BLUE            20:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_89_8                 15:0
-#define VIDEO_ALPHA_COLOR_LOOKUP_89_8_RED             15:11
-#define VIDEO_ALPHA_COLOR_LOOKUP_89_8_GREEN           10:5
-#define VIDEO_ALPHA_COLOR_LOOKUP_89_8_BLUE            4:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_9_MASK            (0xffff << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_9_RED_MASK        (0x1f << 27)
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_9_GREEN_MASK      (0x3f << 21)
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_9_BLUE_MASK       (0x1f << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_8_MASK            0xffff
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_8_RED_MASK        (0x1f << 11)
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_8_GREEN_MASK      (0x3f << 5)
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_8_BLUE_MASK       0x1f
 
 #define VIDEO_ALPHA_COLOR_LOOKUP_AB                   0x0800B8
-#define VIDEO_ALPHA_COLOR_LOOKUP_AB_B                 31:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_AB_B_RED             31:27
-#define VIDEO_ALPHA_COLOR_LOOKUP_AB_B_GREEN           26:21
-#define VIDEO_ALPHA_COLOR_LOOKUP_AB_B_BLUE            20:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_AB_A                 15:0
-#define VIDEO_ALPHA_COLOR_LOOKUP_AB_A_RED             15:11
-#define VIDEO_ALPHA_COLOR_LOOKUP_AB_A_GREEN           10:5
-#define VIDEO_ALPHA_COLOR_LOOKUP_AB_A_BLUE            4:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_B_MASK            (0xffff << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_B_RED_MASK        (0x1f << 27)
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_B_GREEN_MASK      (0x3f << 21)
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_B_BLUE_MASK       (0x1f << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_A_MASK            0xffff
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_A_RED_MASK        (0x1f << 11)
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_A_GREEN_MASK      (0x3f << 5)
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_A_BLUE_MASK       0x1f
 
 #define VIDEO_ALPHA_COLOR_LOOKUP_CD                   0x0800BC
-#define VIDEO_ALPHA_COLOR_LOOKUP_CD_D                 31:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_CD_D_RED             31:27
-#define VIDEO_ALPHA_COLOR_LOOKUP_CD_D_GREEN           26:21
-#define VIDEO_ALPHA_COLOR_LOOKUP_CD_D_BLUE            20:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_CD_C                 15:0
-#define VIDEO_ALPHA_COLOR_LOOKUP_CD_C_RED             15:11
-#define VIDEO_ALPHA_COLOR_LOOKUP_CD_C_GREEN           10:5
-#define VIDEO_ALPHA_COLOR_LOOKUP_CD_C_BLUE            4:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_D_MASK            (0xffff << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_D_RED_MASK        (0x1f << 27)
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_D_GREEN_MASK      (0x3f << 21)
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_D_BLUE_MASK       (0x1f << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_C_MASK            0xffff
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_C_RED_MASK        (0x1f << 11)
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_C_GREEN_MASK      (0x3f << 5)
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_C_BLUE_MASK       0x1f
 
 #define VIDEO_ALPHA_COLOR_LOOKUP_EF                   0x0800C0
-#define VIDEO_ALPHA_COLOR_LOOKUP_EF_F                 31:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_EF_F_RED             31:27
-#define VIDEO_ALPHA_COLOR_LOOKUP_EF_F_GREEN           26:21
-#define VIDEO_ALPHA_COLOR_LOOKUP_EF_F_BLUE            20:16
-#define VIDEO_ALPHA_COLOR_LOOKUP_EF_E                 15:0
-#define VIDEO_ALPHA_COLOR_LOOKUP_EF_E_RED             15:11
-#define VIDEO_ALPHA_COLOR_LOOKUP_EF_E_GREEN           10:5
-#define VIDEO_ALPHA_COLOR_LOOKUP_EF_E_BLUE            4:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_F_MASK            (0xffff << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_F_RED_MASK        (0x1f << 27)
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_F_GREEN_MASK      (0x3f << 21)
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_F_BLUE_MASK       (0x1f << 16)
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_E_MASK            0xffff
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_E_RED_MASK        (0x1f << 11)
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_E_GREEN_MASK      (0x3f << 5)
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_E_BLUE_MASK       0x1f
 
 /* Panel Cursor Control */
 
 #define PANEL_HWC_ADDRESS                             0x0800F0
-#define PANEL_HWC_ADDRESS_ENABLE                      31:31
-#define PANEL_HWC_ADDRESS_ENABLE_DISABLE              0
-#define PANEL_HWC_ADDRESS_ENABLE_ENABLE               1
-#define PANEL_HWC_ADDRESS_EXT                         27:27
-#define PANEL_HWC_ADDRESS_EXT_LOCAL                   0
-#define PANEL_HWC_ADDRESS_EXT_EXTERNAL                1
-#define PANEL_HWC_ADDRESS_ADDRESS                     25:0
+#define PANEL_HWC_ADDRESS_ENABLE                      BIT(31)
+#define PANEL_HWC_ADDRESS_EXT                         BIT(27)
+#define PANEL_HWC_ADDRESS_ADDRESS_MASK                0x3ffffff
 
 #define PANEL_HWC_LOCATION                            0x0800F4
-#define PANEL_HWC_LOCATION_TOP                        27:27
-#define PANEL_HWC_LOCATION_TOP_INSIDE                 0
-#define PANEL_HWC_LOCATION_TOP_OUTSIDE                1
-#define PANEL_HWC_LOCATION_Y                          26:16
-#define PANEL_HWC_LOCATION_LEFT                       11:11
-#define PANEL_HWC_LOCATION_LEFT_INSIDE                0
-#define PANEL_HWC_LOCATION_LEFT_OUTSIDE               1
-#define PANEL_HWC_LOCATION_X                          10:0
+#define PANEL_HWC_LOCATION_TOP                        BIT(27)
+#define PANEL_HWC_LOCATION_Y_MASK                     (0x7ff << 16)
+#define PANEL_HWC_LOCATION_LEFT                       BIT(11)
+#define PANEL_HWC_LOCATION_X_MASK                     0x7ff
 
 #define PANEL_HWC_COLOR_12                            0x0800F8
-#define PANEL_HWC_COLOR_12_2_RGB565                   31:16
-#define PANEL_HWC_COLOR_12_1_RGB565                   15:0
+#define PANEL_HWC_COLOR_12_2_RGB565_MASK              (0xffff << 16)
+#define PANEL_HWC_COLOR_12_1_RGB565_MASK              0xffff
 
 #define PANEL_HWC_COLOR_3                             0x0800FC
-#define PANEL_HWC_COLOR_3_RGB565                      15:0
+#define PANEL_HWC_COLOR_3_RGB565_MASK                 0xffff
 
 /* Old Definitions +++ */
 #define PANEL_HWC_COLOR_01                            0x0800F8
-#define PANEL_HWC_COLOR_01_1_RED                      31:27
-#define PANEL_HWC_COLOR_01_1_GREEN                    26:21
-#define PANEL_HWC_COLOR_01_1_BLUE                     20:16
-#define PANEL_HWC_COLOR_01_0_RED                      15:11
-#define PANEL_HWC_COLOR_01_0_GREEN                    10:5
-#define PANEL_HWC_COLOR_01_0_BLUE                     4:0
+#define PANEL_HWC_COLOR_01_1_RED_MASK                 (0x1f << 27)
+#define PANEL_HWC_COLOR_01_1_GREEN_MASK               (0x3f << 21)
+#define PANEL_HWC_COLOR_01_1_BLUE_MASK                (0x1f << 16)
+#define PANEL_HWC_COLOR_01_0_RED_MASK                 (0x1f << 11)
+#define PANEL_HWC_COLOR_01_0_GREEN_MASK               (0x3f << 5)
+#define PANEL_HWC_COLOR_01_0_BLUE_MASK                0x1f
 
 #define PANEL_HWC_COLOR_2                             0x0800FC
-#define PANEL_HWC_COLOR_2_RED                         15:11
-#define PANEL_HWC_COLOR_2_GREEN                       10:5
-#define PANEL_HWC_COLOR_2_BLUE                        4:0
+#define PANEL_HWC_COLOR_2_RED_MASK                    (0x1f << 11)
+#define PANEL_HWC_COLOR_2_GREEN_MASK                  (0x3f << 5)
+#define PANEL_HWC_COLOR_2_BLUE_MASK                   0x1f
 /* Old Definitions --- */
 
 /* Alpha Control */
 
 #define ALPHA_DISPLAY_CTRL                            0x080100
-#define ALPHA_DISPLAY_CTRL_SELECT                     28:28
-#define ALPHA_DISPLAY_CTRL_SELECT_PER_PIXEL           0
-#define ALPHA_DISPLAY_CTRL_SELECT_ALPHA               1
-#define ALPHA_DISPLAY_CTRL_ALPHA                      27:24
-#define ALPHA_DISPLAY_CTRL_FIFO                       17:16
-#define ALPHA_DISPLAY_CTRL_FIFO_1                     0
-#define ALPHA_DISPLAY_CTRL_FIFO_3                     1
-#define ALPHA_DISPLAY_CTRL_FIFO_7                     2
-#define ALPHA_DISPLAY_CTRL_FIFO_11                    3
-#define ALPHA_DISPLAY_CTRL_PIXEL                      7:4
-#define ALPHA_DISPLAY_CTRL_CHROMA_KEY                 3:3
-#define ALPHA_DISPLAY_CTRL_CHROMA_KEY_DISABLE         0
-#define ALPHA_DISPLAY_CTRL_CHROMA_KEY_ENABLE          1
-#define ALPHA_DISPLAY_CTRL_FORMAT                     1:0
-#define ALPHA_DISPLAY_CTRL_FORMAT_16                  1
-#define ALPHA_DISPLAY_CTRL_FORMAT_ALPHA_4_4           2
-#define ALPHA_DISPLAY_CTRL_FORMAT_ALPHA_4_4_4_4       3
+#define ALPHA_DISPLAY_CTRL_SELECT                     BIT(28)
+#define ALPHA_DISPLAY_CTRL_ALPHA_MASK                 (0xf << 24)
+#define ALPHA_DISPLAY_CTRL_FIFO_MASK                  (0x3 << 16)
+#define ALPHA_DISPLAY_CTRL_FIFO_1                     (0x0 << 16)
+#define ALPHA_DISPLAY_CTRL_FIFO_3                     (0x1 << 16)
+#define ALPHA_DISPLAY_CTRL_FIFO_7                     (0x2 << 16)
+#define ALPHA_DISPLAY_CTRL_FIFO_11                    (0x3 << 16)
+#define ALPHA_DISPLAY_CTRL_PIXEL_MASK                 (0xf << 4)
+#define ALPHA_DISPLAY_CTRL_CHROMA_KEY                 BIT(3)
+#define ALPHA_DISPLAY_CTRL_FORMAT_MASK                0x3
+#define ALPHA_DISPLAY_CTRL_FORMAT_16                  0x1
+#define ALPHA_DISPLAY_CTRL_FORMAT_ALPHA_4_4           0x2
+#define ALPHA_DISPLAY_CTRL_FORMAT_ALPHA_4_4_4_4       0x3
 
 #define ALPHA_FB_ADDRESS                              0x080104
-#define ALPHA_FB_ADDRESS_STATUS                       31:31
-#define ALPHA_FB_ADDRESS_STATUS_CURRENT               0
-#define ALPHA_FB_ADDRESS_STATUS_PENDING               1
-#define ALPHA_FB_ADDRESS_EXT                          27:27
-#define ALPHA_FB_ADDRESS_EXT_LOCAL                    0
-#define ALPHA_FB_ADDRESS_EXT_EXTERNAL                 1
-#define ALPHA_FB_ADDRESS_ADDRESS                      25:0
+#define ALPHA_FB_ADDRESS_STATUS                       BIT(31)
+#define ALPHA_FB_ADDRESS_EXT                          BIT(27)
+#define ALPHA_FB_ADDRESS_ADDRESS_MASK                 0x3ffffff
 
 #define ALPHA_FB_WIDTH                                0x080108
-#define ALPHA_FB_WIDTH_WIDTH                          29:16
-#define ALPHA_FB_WIDTH_OFFSET                         13:0
+#define ALPHA_FB_WIDTH_WIDTH_MASK                     (0x3fff << 16)
+#define ALPHA_FB_WIDTH_OFFSET_MASK                    0x3fff
 
 #define ALPHA_PLANE_TL                                0x08010C
-#define ALPHA_PLANE_TL_TOP                            26:16
-#define ALPHA_PLANE_TL_LEFT                           10:0
+#define ALPHA_PLANE_TL_TOP_MASK                       (0x7ff << 16)
+#define ALPHA_PLANE_TL_LEFT_MASK                      0x7ff
 
 #define ALPHA_PLANE_BR                                0x080110
-#define ALPHA_PLANE_BR_BOTTOM                         26:16
-#define ALPHA_PLANE_BR_RIGHT                          10:0
+#define ALPHA_PLANE_BR_BOTTOM_MASK                    (0x7ff << 16)
+#define ALPHA_PLANE_BR_RIGHT_MASK                     0x7ff
 
 #define ALPHA_CHROMA_KEY                              0x080114
-#define ALPHA_CHROMA_KEY_MASK                         31:16
-#define ALPHA_CHROMA_KEY_VALUE                        15:0
+#define ALPHA_CHROMA_KEY_MASK_MASK                    (0xffff << 16)
+#define ALPHA_CHROMA_KEY_VALUE_MASK                   0xffff
 
 #define ALPHA_COLOR_LOOKUP_01                         0x080118
-#define ALPHA_COLOR_LOOKUP_01_1                       31:16
-#define ALPHA_COLOR_LOOKUP_01_1_RED                   31:27
-#define ALPHA_COLOR_LOOKUP_01_1_GREEN                 26:21
-#define ALPHA_COLOR_LOOKUP_01_1_BLUE                  20:16
-#define ALPHA_COLOR_LOOKUP_01_0                       15:0
-#define ALPHA_COLOR_LOOKUP_01_0_RED                   15:11
-#define ALPHA_COLOR_LOOKUP_01_0_GREEN                 10:5
-#define ALPHA_COLOR_LOOKUP_01_0_BLUE                  4:0
+#define ALPHA_COLOR_LOOKUP_01_1_MASK                  (0xffff << 16)
+#define ALPHA_COLOR_LOOKUP_01_1_RED_MASK              (0x1f << 27)
+#define ALPHA_COLOR_LOOKUP_01_1_GREEN_MASK            (0x3f << 21)
+#define ALPHA_COLOR_LOOKUP_01_1_BLUE_MASK             (0x1f << 16)
+#define ALPHA_COLOR_LOOKUP_01_0_MASK                  0xffff
+#define ALPHA_COLOR_LOOKUP_01_0_RED_MASK              (0x1f << 11)
+#define ALPHA_COLOR_LOOKUP_01_0_GREEN_MASK            (0x3f << 5)
+#define ALPHA_COLOR_LOOKUP_01_0_BLUE_MASK             0x1f
 
 #define ALPHA_COLOR_LOOKUP_23                         0x08011C
-#define ALPHA_COLOR_LOOKUP_23_3                       31:16
-#define ALPHA_COLOR_LOOKUP_23_3_RED                   31:27
-#define ALPHA_COLOR_LOOKUP_23_3_GREEN                 26:21
-#define ALPHA_COLOR_LOOKUP_23_3_BLUE                  20:16
-#define ALPHA_COLOR_LOOKUP_23_2                       15:0
-#define ALPHA_COLOR_LOOKUP_23_2_RED                   15:11
-#define ALPHA_COLOR_LOOKUP_23_2_GREEN                 10:5
-#define ALPHA_COLOR_LOOKUP_23_2_BLUE                  4:0
+#define ALPHA_COLOR_LOOKUP_23_3_MASK                  (0xffff << 16)
+#define ALPHA_COLOR_LOOKUP_23_3_RED_MASK              (0x1f << 27)
+#define ALPHA_COLOR_LOOKUP_23_3_GREEN_MASK            (0x3f << 21)
+#define ALPHA_COLOR_LOOKUP_23_3_BLUE_MASK             (0x1f << 16)
+#define ALPHA_COLOR_LOOKUP_23_2_MASK                  0xffff
+#define ALPHA_COLOR_LOOKUP_23_2_RED_MASK              (0x1f << 11)
+#define ALPHA_COLOR_LOOKUP_23_2_GREEN_MASK            (0x3f << 5)
+#define ALPHA_COLOR_LOOKUP_23_2_BLUE_MASK             0x1f
 
 #define ALPHA_COLOR_LOOKUP_45                         0x080120
-#define ALPHA_COLOR_LOOKUP_45_5                       31:16
-#define ALPHA_COLOR_LOOKUP_45_5_RED                   31:27
-#define ALPHA_COLOR_LOOKUP_45_5_GREEN                 26:21
-#define ALPHA_COLOR_LOOKUP_45_5_BLUE                  20:16
-#define ALPHA_COLOR_LOOKUP_45_4                       15:0
-#define ALPHA_COLOR_LOOKUP_45_4_RED                   15:11
-#define ALPHA_COLOR_LOOKUP_45_4_GREEN                 10:5
-#define ALPHA_COLOR_LOOKUP_45_4_BLUE                  4:0
+#define ALPHA_COLOR_LOOKUP_45_5_MASK                  (0xffff << 16)
+#define ALPHA_COLOR_LOOKUP_45_5_RED_MASK              (0x1f << 27)
+#define ALPHA_COLOR_LOOKUP_45_5_GREEN_MASK            (0x3f << 21)
+#define ALPHA_COLOR_LOOKUP_45_5_BLUE_MASK             (0x1f << 16)
+#define ALPHA_COLOR_LOOKUP_45_4_MASK                  0xffff
+#define ALPHA_COLOR_LOOKUP_45_4_RED_MASK              (0x1f << 11)
+#define ALPHA_COLOR_LOOKUP_45_4_GREEN_MASK            (0x3f << 5)
+#define ALPHA_COLOR_LOOKUP_45_4_BLUE_MASK             0x1f
 
 #define ALPHA_COLOR_LOOKUP_67                         0x080124
-#define ALPHA_COLOR_LOOKUP_67_7                       31:16
-#define ALPHA_COLOR_LOOKUP_67_7_RED                   31:27
-#define ALPHA_COLOR_LOOKUP_67_7_GREEN                 26:21
-#define ALPHA_COLOR_LOOKUP_67_7_BLUE                  20:16
-#define ALPHA_COLOR_LOOKUP_67_6                       15:0
-#define ALPHA_COLOR_LOOKUP_67_6_RED                   15:11
-#define ALPHA_COLOR_LOOKUP_67_6_GREEN                 10:5
-#define ALPHA_COLOR_LOOKUP_67_6_BLUE                  4:0
+#define ALPHA_COLOR_LOOKUP_67_7_MASK                  (0xffff << 16)
+#define ALPHA_COLOR_LOOKUP_67_7_RED_MASK              (0x1f << 27)
+#define ALPHA_COLOR_LOOKUP_67_7_GREEN_MASK            (0x3f << 21)
+#define ALPHA_COLOR_LOOKUP_67_7_BLUE_MASK             (0x1f << 16)
+#define ALPHA_COLOR_LOOKUP_67_6_MASK                  0xffff
+#define ALPHA_COLOR_LOOKUP_67_6_RED_MASK              (0x1f << 11)
+#define ALPHA_COLOR_LOOKUP_67_6_GREEN_MASK            (0x3f << 5)
+#define ALPHA_COLOR_LOOKUP_67_6_BLUE_MASK             0x1f
 
 #define ALPHA_COLOR_LOOKUP_89                         0x080128
-#define ALPHA_COLOR_LOOKUP_89_9                       31:16
-#define ALPHA_COLOR_LOOKUP_89_9_RED                   31:27
-#define ALPHA_COLOR_LOOKUP_89_9_GREEN                 26:21
-#define ALPHA_COLOR_LOOKUP_89_9_BLUE                  20:16
-#define ALPHA_COLOR_LOOKUP_89_8                       15:0
-#define ALPHA_COLOR_LOOKUP_89_8_RED                   15:11
-#define ALPHA_COLOR_LOOKUP_89_8_GREEN                 10:5
-#define ALPHA_COLOR_LOOKUP_89_8_BLUE                  4:0
+#define ALPHA_COLOR_LOOKUP_89_9_MASK                  (0xffff << 16)
+#define ALPHA_COLOR_LOOKUP_89_9_RED_MASK              (0x1f << 27)
+#define ALPHA_COLOR_LOOKUP_89_9_GREEN_MASK            (0x3f << 21)
+#define ALPHA_COLOR_LOOKUP_89_9_BLUE_MASK             (0x1f << 16)
+#define ALPHA_COLOR_LOOKUP_89_8_MASK                  0xffff
+#define ALPHA_COLOR_LOOKUP_89_8_RED_MASK              (0x1f << 11)
+#define ALPHA_COLOR_LOOKUP_89_8_GREEN_MASK            (0x3f << 5)
+#define ALPHA_COLOR_LOOKUP_89_8_BLUE_MASK             0x1f
 
 #define ALPHA_COLOR_LOOKUP_AB                         0x08012C
-#define ALPHA_COLOR_LOOKUP_AB_B                       31:16
-#define ALPHA_COLOR_LOOKUP_AB_B_RED                   31:27
-#define ALPHA_COLOR_LOOKUP_AB_B_GREEN                 26:21
-#define ALPHA_COLOR_LOOKUP_AB_B_BLUE                  20:16
-#define ALPHA_COLOR_LOOKUP_AB_A                       15:0
-#define ALPHA_COLOR_LOOKUP_AB_A_RED                   15:11
-#define ALPHA_COLOR_LOOKUP_AB_A_GREEN                 10:5
-#define ALPHA_COLOR_LOOKUP_AB_A_BLUE                  4:0
+#define ALPHA_COLOR_LOOKUP_AB_B_MASK                  (0xffff << 16)
+#define ALPHA_COLOR_LOOKUP_AB_B_RED_MASK              (0x1f << 27)
+#define ALPHA_COLOR_LOOKUP_AB_B_GREEN_MASK            (0x3f << 21)
+#define ALPHA_COLOR_LOOKUP_AB_B_BLUE_MASK             (0x1f << 16)
+#define ALPHA_COLOR_LOOKUP_AB_A_MASK                  0xffff
+#define ALPHA_COLOR_LOOKUP_AB_A_RED_MASK              (0x1f << 11)
+#define ALPHA_COLOR_LOOKUP_AB_A_GREEN_MASK            (0x3f << 5)
+#define ALPHA_COLOR_LOOKUP_AB_A_BLUE_MASK             0x1f
 
 #define ALPHA_COLOR_LOOKUP_CD                         0x080130
-#define ALPHA_COLOR_LOOKUP_CD_D                       31:16
-#define ALPHA_COLOR_LOOKUP_CD_D_RED                   31:27
-#define ALPHA_COLOR_LOOKUP_CD_D_GREEN                 26:21
-#define ALPHA_COLOR_LOOKUP_CD_D_BLUE                  20:16
-#define ALPHA_COLOR_LOOKUP_CD_C                       15:0
-#define ALPHA_COLOR_LOOKUP_CD_C_RED                   15:11
-#define ALPHA_COLOR_LOOKUP_CD_C_GREEN                 10:5
-#define ALPHA_COLOR_LOOKUP_CD_C_BLUE                  4:0
+#define ALPHA_COLOR_LOOKUP_CD_D_MASK                  (0xffff << 16)
+#define ALPHA_COLOR_LOOKUP_CD_D_RED_MASK              (0x1f << 27)
+#define ALPHA_COLOR_LOOKUP_CD_D_GREEN_MASK            (0x3f << 21)
+#define ALPHA_COLOR_LOOKUP_CD_D_BLUE_MASK             (0x1f << 16)
+#define ALPHA_COLOR_LOOKUP_CD_C_MASK                  0xffff
+#define ALPHA_COLOR_LOOKUP_CD_C_RED_MASK              (0x1f << 11)
+#define ALPHA_COLOR_LOOKUP_CD_C_GREEN_MASK            (0x3f << 5)
+#define ALPHA_COLOR_LOOKUP_CD_C_BLUE_MASK             0x1f
 
 #define ALPHA_COLOR_LOOKUP_EF                         0x080134
-#define ALPHA_COLOR_LOOKUP_EF_F                       31:16
-#define ALPHA_COLOR_LOOKUP_EF_F_RED                   31:27
-#define ALPHA_COLOR_LOOKUP_EF_F_GREEN                 26:21
-#define ALPHA_COLOR_LOOKUP_EF_F_BLUE                  20:16
-#define ALPHA_COLOR_LOOKUP_EF_E                       15:0
-#define ALPHA_COLOR_LOOKUP_EF_E_RED                   15:11
-#define ALPHA_COLOR_LOOKUP_EF_E_GREEN                 10:5
-#define ALPHA_COLOR_LOOKUP_EF_E_BLUE                  4:0
+#define ALPHA_COLOR_LOOKUP_EF_F_MASK                  (0xffff << 16)
+#define ALPHA_COLOR_LOOKUP_EF_F_RED_MASK              (0x1f << 27)
+#define ALPHA_COLOR_LOOKUP_EF_F_GREEN_MASK            (0x3f << 21)
+#define ALPHA_COLOR_LOOKUP_EF_F_BLUE_MASK             (0x1f << 16)
+#define ALPHA_COLOR_LOOKUP_EF_E_MASK                  0xffff
+#define ALPHA_COLOR_LOOKUP_EF_E_RED_MASK              (0x1f << 11)
+#define ALPHA_COLOR_LOOKUP_EF_E_GREEN_MASK            (0x3f << 5)
+#define ALPHA_COLOR_LOOKUP_EF_E_BLUE_MASK             0x1f
 
 /* CRT Graphics Control */
 
@@ -1364,125 +1045,107 @@
 #define CRT_DISPLAY_CTRL_FORMAT_32                    (0x2 << 0)
 
 #define CRT_FB_ADDRESS                                0x080204
-#define CRT_FB_ADDRESS_STATUS                         31:31
-#define CRT_FB_ADDRESS_STATUS_CURRENT                 0
-#define CRT_FB_ADDRESS_STATUS_PENDING                 1
-#define CRT_FB_ADDRESS_EXT                            27:27
-#define CRT_FB_ADDRESS_EXT_LOCAL                      0
-#define CRT_FB_ADDRESS_EXT_EXTERNAL                   1
-#define CRT_FB_ADDRESS_ADDRESS                        25:0
+#define CRT_FB_ADDRESS_STATUS                         BIT(31)
+#define CRT_FB_ADDRESS_EXT                            BIT(27)
+#define CRT_FB_ADDRESS_ADDRESS_MASK                   0x3ffffff
 
 #define CRT_FB_WIDTH                                  0x080208
-#define CRT_FB_WIDTH_WIDTH                            29:16
-#define CRT_FB_WIDTH_OFFSET                           13:0
+#define CRT_FB_WIDTH_WIDTH_SHIFT                      16
+#define CRT_FB_WIDTH_WIDTH_MASK                       (0x3fff << 16)
+#define CRT_FB_WIDTH_OFFSET_MASK                      0x3fff
 
 #define CRT_HORIZONTAL_TOTAL                          0x08020C
-#define CRT_HORIZONTAL_TOTAL_TOTAL                    27:16
-#define CRT_HORIZONTAL_TOTAL_DISPLAY_END              11:0
+#define CRT_HORIZONTAL_TOTAL_TOTAL_SHIFT              16
+#define CRT_HORIZONTAL_TOTAL_TOTAL_MASK               (0xfff << 16)
+#define CRT_HORIZONTAL_TOTAL_DISPLAY_END_MASK         0xfff
 
 #define CRT_HORIZONTAL_SYNC                           0x080210
-#define CRT_HORIZONTAL_SYNC_WIDTH                     23:16
-#define CRT_HORIZONTAL_SYNC_START                     11:0
+#define CRT_HORIZONTAL_SYNC_WIDTH_SHIFT               16
+#define CRT_HORIZONTAL_SYNC_WIDTH_MASK                (0xff << 16)
+#define CRT_HORIZONTAL_SYNC_START_MASK                0xfff
 
 #define CRT_VERTICAL_TOTAL                            0x080214
-#define CRT_VERTICAL_TOTAL_TOTAL                      26:16
-#define CRT_VERTICAL_TOTAL_DISPLAY_END                10:0
+#define CRT_VERTICAL_TOTAL_TOTAL_SHIFT                16
+#define CRT_VERTICAL_TOTAL_TOTAL_MASK                 (0x7ff << 16)
+#define CRT_VERTICAL_TOTAL_DISPLAY_END_MASK           (0x7ff)
 
 #define CRT_VERTICAL_SYNC                             0x080218
-#define CRT_VERTICAL_SYNC_HEIGHT                      21:16
-#define CRT_VERTICAL_SYNC_START                       10:0
+#define CRT_VERTICAL_SYNC_HEIGHT_SHIFT                16
+#define CRT_VERTICAL_SYNC_HEIGHT_MASK                 (0x3f << 16)
+#define CRT_VERTICAL_SYNC_START_MASK                  0x7ff
 
 #define CRT_SIGNATURE_ANALYZER                        0x08021C
-#define CRT_SIGNATURE_ANALYZER_STATUS                 31:16
-#define CRT_SIGNATURE_ANALYZER_ENABLE                 3:3
-#define CRT_SIGNATURE_ANALYZER_ENABLE_DISABLE         0
-#define CRT_SIGNATURE_ANALYZER_ENABLE_ENABLE          1
-#define CRT_SIGNATURE_ANALYZER_RESET                  2:2
-#define CRT_SIGNATURE_ANALYZER_RESET_NORMAL           0
-#define CRT_SIGNATURE_ANALYZER_RESET_RESET            1
-#define CRT_SIGNATURE_ANALYZER_SOURCE                 1:0
+#define CRT_SIGNATURE_ANALYZER_STATUS_MASK            (0xffff << 16)
+#define CRT_SIGNATURE_ANALYZER_ENABLE                 BIT(3)
+#define CRT_SIGNATURE_ANALYZER_RESET                  BIT(2)
+#define CRT_SIGNATURE_ANALYZER_SOURCE_MASK            0x3
 #define CRT_SIGNATURE_ANALYZER_SOURCE_RED             0
 #define CRT_SIGNATURE_ANALYZER_SOURCE_GREEN           1
 #define CRT_SIGNATURE_ANALYZER_SOURCE_BLUE            2
 
 #define CRT_CURRENT_LINE                              0x080220
-#define CRT_CURRENT_LINE_LINE                         10:0
+#define CRT_CURRENT_LINE_LINE_MASK                    0x7ff
 
 #define CRT_MONITOR_DETECT                            0x080224
-#define CRT_MONITOR_DETECT_VALUE                      25:25
-#define CRT_MONITOR_DETECT_VALUE_DISABLE              0
-#define CRT_MONITOR_DETECT_VALUE_ENABLE               1
-#define CRT_MONITOR_DETECT_ENABLE                     24:24
-#define CRT_MONITOR_DETECT_ENABLE_DISABLE             0
-#define CRT_MONITOR_DETECT_ENABLE_ENABLE              1
-#define CRT_MONITOR_DETECT_RED                        23:16
-#define CRT_MONITOR_DETECT_GREEN                      15:8
-#define CRT_MONITOR_DETECT_BLUE                       7:0
+#define CRT_MONITOR_DETECT_VALUE                      BIT(25)
+#define CRT_MONITOR_DETECT_ENABLE                     BIT(24)
+#define CRT_MONITOR_DETECT_RED_MASK                   (0xff << 16)
+#define CRT_MONITOR_DETECT_GREEN_MASK                 (0xff << 8)
+#define CRT_MONITOR_DETECT_BLUE_MASK                  0xff
 
 #define CRT_SCALE                                     0x080228
-#define CRT_SCALE_VERTICAL_MODE                       31:31
-#define CRT_SCALE_VERTICAL_MODE_EXPAND                0
-#define CRT_SCALE_VERTICAL_MODE_SHRINK                1
-#define CRT_SCALE_VERTICAL_SCALE                      27:16
-#define CRT_SCALE_HORIZONTAL_MODE                     15:15
-#define CRT_SCALE_HORIZONTAL_MODE_EXPAND              0
-#define CRT_SCALE_HORIZONTAL_MODE_SHRINK              1
-#define CRT_SCALE_HORIZONTAL_SCALE                    11:0
+#define CRT_SCALE_VERTICAL_MODE                       BIT(31)
+#define CRT_SCALE_VERTICAL_SCALE_MASK                 (0xfff << 16)
+#define CRT_SCALE_HORIZONTAL_MODE                     BIT(15)
+#define CRT_SCALE_HORIZONTAL_SCALE_MASK               0xfff
 
 /* CRT Cursor Control */
 
 #define CRT_HWC_ADDRESS                               0x080230
-#define CRT_HWC_ADDRESS_ENABLE                        31:31
-#define CRT_HWC_ADDRESS_ENABLE_DISABLE                0
-#define CRT_HWC_ADDRESS_ENABLE_ENABLE                 1
-#define CRT_HWC_ADDRESS_EXT                           27:27
-#define CRT_HWC_ADDRESS_EXT_LOCAL                     0
-#define CRT_HWC_ADDRESS_EXT_EXTERNAL                  1
-#define CRT_HWC_ADDRESS_ADDRESS                       25:0
+#define CRT_HWC_ADDRESS_ENABLE                        BIT(31)
+#define CRT_HWC_ADDRESS_EXT                           BIT(27)
+#define CRT_HWC_ADDRESS_ADDRESS_MASK                  0x3ffffff
 
 #define CRT_HWC_LOCATION                              0x080234
-#define CRT_HWC_LOCATION_TOP                          27:27
-#define CRT_HWC_LOCATION_TOP_INSIDE                   0
-#define CRT_HWC_LOCATION_TOP_OUTSIDE                  1
-#define CRT_HWC_LOCATION_Y                            26:16
-#define CRT_HWC_LOCATION_LEFT                         11:11
-#define CRT_HWC_LOCATION_LEFT_INSIDE                  0
-#define CRT_HWC_LOCATION_LEFT_OUTSIDE                 1
-#define CRT_HWC_LOCATION_X                            10:0
+#define CRT_HWC_LOCATION_TOP                          BIT(27)
+#define CRT_HWC_LOCATION_Y_MASK                       (0x7ff << 16)
+#define CRT_HWC_LOCATION_LEFT                         BIT(11)
+#define CRT_HWC_LOCATION_X_MASK                       0x7ff
 
 #define CRT_HWC_COLOR_12                              0x080238
-#define CRT_HWC_COLOR_12_2_RGB565                     31:16
-#define CRT_HWC_COLOR_12_1_RGB565                     15:0
+#define CRT_HWC_COLOR_12_2_RGB565_MASK                (0xffff << 16)
+#define CRT_HWC_COLOR_12_1_RGB565_MASK                0xffff
 
 #define CRT_HWC_COLOR_3                               0x08023C
-#define CRT_HWC_COLOR_3_RGB565                        15:0
+#define CRT_HWC_COLOR_3_RGB565_MASK                   0xffff
 
 /* This vertical expansion below start at 0x080240 ~ 0x080264 */
 #define CRT_VERTICAL_EXPANSION                        0x080240
 #ifndef VALIDATION_CHIP
-    #define CRT_VERTICAL_CENTERING_VALUE              31:24
+    #define CRT_VERTICAL_CENTERING_VALUE_MASK         (0xff << 24)
 #endif
-#define CRT_VERTICAL_EXPANSION_COMPARE_VALUE          23:16
-#define CRT_VERTICAL_EXPANSION_LINE_BUFFER            15:12
-#define CRT_VERTICAL_EXPANSION_SCALE_FACTOR           11:0
+#define CRT_VERTICAL_EXPANSION_COMPARE_VALUE_MASK     (0xff << 16)
+#define CRT_VERTICAL_EXPANSION_LINE_BUFFER_MASK       (0xf << 12)
+#define CRT_VERTICAL_EXPANSION_SCALE_FACTOR_MASK      0xfff
 
 /* This horizontal expansion below start at 0x080268 ~ 0x08027C */
 #define CRT_HORIZONTAL_EXPANSION                      0x080268
 #ifndef VALIDATION_CHIP
-    #define CRT_HORIZONTAL_CENTERING_VALUE            31:24
+    #define CRT_HORIZONTAL_CENTERING_VALUE_MASK       (0xff << 24)
 #endif
-#define CRT_HORIZONTAL_EXPANSION_COMPARE_VALUE        23:16
-#define CRT_HORIZONTAL_EXPANSION_SCALE_FACTOR         11:0
+#define CRT_HORIZONTAL_EXPANSION_COMPARE_VALUE_MASK   (0xff << 16)
+#define CRT_HORIZONTAL_EXPANSION_SCALE_FACTOR_MASK    0xfff
 
 #ifndef VALIDATION_CHIP
     /* Auto Centering */
     #define CRT_AUTO_CENTERING_TL                     0x080280
-    #define CRT_AUTO_CENTERING_TL_TOP                 26:16
-    #define CRT_AUTO_CENTERING_TL_LEFT                10:0
+    #define CRT_AUTO_CENTERING_TL_TOP_MASK            (0x7ff << 16)
+    #define CRT_AUTO_CENTERING_TL_LEFT_MASK           0x7ff
 
     #define CRT_AUTO_CENTERING_BR                     0x080284
-    #define CRT_AUTO_CENTERING_BR_BOTTOM              26:16
-    #define CRT_AUTO_CENTERING_BR_RIGHT               10:0
+    #define CRT_AUTO_CENTERING_BR_BOTTOM_MASK         (0x7ff << 16)
+    #define CRT_AUTO_CENTERING_BR_BOTTOM_SHIFT        16
+    #define CRT_AUTO_CENTERING_BR_RIGHT_MASK          0x7ff
 #endif
 
 /* sm750le new register to control panel output */
@@ -1498,112 +1161,86 @@
 /* Color Space Conversion registers. */
 
 #define CSC_Y_SOURCE_BASE                               0x1000C8
-#define CSC_Y_SOURCE_BASE_EXT                           27:27
-#define CSC_Y_SOURCE_BASE_EXT_LOCAL                     0
-#define CSC_Y_SOURCE_BASE_EXT_EXTERNAL                  1
-#define CSC_Y_SOURCE_BASE_CS                            26:26
-#define CSC_Y_SOURCE_BASE_CS_0                          0
-#define CSC_Y_SOURCE_BASE_CS_1                          1
-#define CSC_Y_SOURCE_BASE_ADDRESS                       25:0
+#define CSC_Y_SOURCE_BASE_EXT                           BIT(27)
+#define CSC_Y_SOURCE_BASE_CS                            BIT(26)
+#define CSC_Y_SOURCE_BASE_ADDRESS_MASK                  0x3ffffff
 
 #define CSC_CONSTANTS                                   0x1000CC
-#define CSC_CONSTANTS_Y                                 31:24
-#define CSC_CONSTANTS_R                                 23:16
-#define CSC_CONSTANTS_G                                 15:8
-#define CSC_CONSTANTS_B                                 7:0
+#define CSC_CONSTANTS_Y_MASK                            (0xff << 24)
+#define CSC_CONSTANTS_R_MASK                            (0xff << 16)
+#define CSC_CONSTANTS_G_MASK                            (0xff << 8)
+#define CSC_CONSTANTS_B_MASK                            0xff
 
 #define CSC_Y_SOURCE_X                                  0x1000D0
-#define CSC_Y_SOURCE_X_INTEGER                          26:16
-#define CSC_Y_SOURCE_X_FRACTION                         15:3
+#define CSC_Y_SOURCE_X_INTEGER_MASK                     (0x7ff << 16)
+#define CSC_Y_SOURCE_X_FRACTION_MASK                    (0x1fff << 3)
 
 #define CSC_Y_SOURCE_Y                                  0x1000D4
-#define CSC_Y_SOURCE_Y_INTEGER                          27:16
-#define CSC_Y_SOURCE_Y_FRACTION                         15:3
+#define CSC_Y_SOURCE_Y_INTEGER_MASK                     (0xfff << 16)
+#define CSC_Y_SOURCE_Y_FRACTION_MASK                    (0x1fff << 3)
 
 #define CSC_U_SOURCE_BASE                               0x1000D8
-#define CSC_U_SOURCE_BASE_EXT                           27:27
-#define CSC_U_SOURCE_BASE_EXT_LOCAL                     0
-#define CSC_U_SOURCE_BASE_EXT_EXTERNAL                  1
-#define CSC_U_SOURCE_BASE_CS                            26:26
-#define CSC_U_SOURCE_BASE_CS_0                          0
-#define CSC_U_SOURCE_BASE_CS_1                          1
-#define CSC_U_SOURCE_BASE_ADDRESS                       25:0
+#define CSC_U_SOURCE_BASE_EXT                           BIT(27)
+#define CSC_U_SOURCE_BASE_CS                            BIT(26)
+#define CSC_U_SOURCE_BASE_ADDRESS_MASK                  0x3ffffff
 
 #define CSC_V_SOURCE_BASE                               0x1000DC
-#define CSC_V_SOURCE_BASE_EXT                           27:27
-#define CSC_V_SOURCE_BASE_EXT_LOCAL                     0
-#define CSC_V_SOURCE_BASE_EXT_EXTERNAL                  1
-#define CSC_V_SOURCE_BASE_CS                            26:26
-#define CSC_V_SOURCE_BASE_CS_0                          0
-#define CSC_V_SOURCE_BASE_CS_1                          1
-#define CSC_V_SOURCE_BASE_ADDRESS                       25:0
+#define CSC_V_SOURCE_BASE_EXT                           BIT(27)
+#define CSC_V_SOURCE_BASE_CS                            BIT(26)
+#define CSC_V_SOURCE_BASE_ADDRESS_MASK                  0x3ffffff
 
 #define CSC_SOURCE_DIMENSION                            0x1000E0
-#define CSC_SOURCE_DIMENSION_X                          31:16
-#define CSC_SOURCE_DIMENSION_Y                          15:0
+#define CSC_SOURCE_DIMENSION_X_MASK                     (0xffff << 16)
+#define CSC_SOURCE_DIMENSION_Y_MASK                     0xffff
 
 #define CSC_SOURCE_PITCH                                0x1000E4
-#define CSC_SOURCE_PITCH_Y                              31:16
-#define CSC_SOURCE_PITCH_UV                             15:0
+#define CSC_SOURCE_PITCH_Y_MASK                         (0xffff << 16)
+#define CSC_SOURCE_PITCH_UV_MASK                        0xffff
 
 #define CSC_DESTINATION                                 0x1000E8
-#define CSC_DESTINATION_WRAP                            31:31
-#define CSC_DESTINATION_WRAP_DISABLE                    0
-#define CSC_DESTINATION_WRAP_ENABLE                     1
-#define CSC_DESTINATION_X                               27:16
-#define CSC_DESTINATION_Y                               11:0
+#define CSC_DESTINATION_WRAP                            BIT(31)
+#define CSC_DESTINATION_X_MASK                          (0xfff << 16)
+#define CSC_DESTINATION_Y_MASK                          0xfff
 
 #define CSC_DESTINATION_DIMENSION                       0x1000EC
-#define CSC_DESTINATION_DIMENSION_X                     31:16
-#define CSC_DESTINATION_DIMENSION_Y                     15:0
+#define CSC_DESTINATION_DIMENSION_X_MASK                (0xffff << 16)
+#define CSC_DESTINATION_DIMENSION_Y_MASK                0xffff
 
 #define CSC_DESTINATION_PITCH                           0x1000F0
-#define CSC_DESTINATION_PITCH_X                         31:16
-#define CSC_DESTINATION_PITCH_Y                         15:0
+#define CSC_DESTINATION_PITCH_X_MASK                    (0xffff << 16)
+#define CSC_DESTINATION_PITCH_Y_MASK                    0xffff
 
 #define CSC_SCALE_FACTOR                                0x1000F4
-#define CSC_SCALE_FACTOR_HORIZONTAL                     31:16
-#define CSC_SCALE_FACTOR_VERTICAL                       15:0
+#define CSC_SCALE_FACTOR_HORIZONTAL_MASK                (0xffff << 16)
+#define CSC_SCALE_FACTOR_VERTICAL_MASK                  0xffff
 
 #define CSC_DESTINATION_BASE                            0x1000F8
-#define CSC_DESTINATION_BASE_EXT                        27:27
-#define CSC_DESTINATION_BASE_EXT_LOCAL                  0
-#define CSC_DESTINATION_BASE_EXT_EXTERNAL               1
-#define CSC_DESTINATION_BASE_CS                         26:26
-#define CSC_DESTINATION_BASE_CS_0                       0
-#define CSC_DESTINATION_BASE_CS_1                       1
-#define CSC_DESTINATION_BASE_ADDRESS                    25:0
+#define CSC_DESTINATION_BASE_EXT                        BIT(27)
+#define CSC_DESTINATION_BASE_CS                         BIT(26)
+#define CSC_DESTINATION_BASE_ADDRESS_MASK               0x3ffffff
 
 #define CSC_CONTROL                                     0x1000FC
-#define CSC_CONTROL_STATUS                              31:31
-#define CSC_CONTROL_STATUS_STOP                         0
-#define CSC_CONTROL_STATUS_START                        1
-#define CSC_CONTROL_SOURCE_FORMAT                       30:28
-#define CSC_CONTROL_SOURCE_FORMAT_YUV422                0
-#define CSC_CONTROL_SOURCE_FORMAT_YUV420I               1
-#define CSC_CONTROL_SOURCE_FORMAT_YUV420                2
-#define CSC_CONTROL_SOURCE_FORMAT_YVU9                  3
-#define CSC_CONTROL_SOURCE_FORMAT_IYU1                  4
-#define CSC_CONTROL_SOURCE_FORMAT_IYU2                  5
-#define CSC_CONTROL_SOURCE_FORMAT_RGB565                6
-#define CSC_CONTROL_SOURCE_FORMAT_RGB8888               7
-#define CSC_CONTROL_DESTINATION_FORMAT                  27:26
-#define CSC_CONTROL_DESTINATION_FORMAT_RGB565           0
-#define CSC_CONTROL_DESTINATION_FORMAT_RGB8888          1
-#define CSC_CONTROL_HORIZONTAL_FILTER                   25:25
-#define CSC_CONTROL_HORIZONTAL_FILTER_DISABLE           0
-#define CSC_CONTROL_HORIZONTAL_FILTER_ENABLE            1
-#define CSC_CONTROL_VERTICAL_FILTER                     24:24
-#define CSC_CONTROL_VERTICAL_FILTER_DISABLE             0
-#define CSC_CONTROL_VERTICAL_FILTER_ENABLE              1
-#define CSC_CONTROL_BYTE_ORDER                          23:23
-#define CSC_CONTROL_BYTE_ORDER_YUYV                     0
-#define CSC_CONTROL_BYTE_ORDER_UYVY                     1
+#define CSC_CONTROL_STATUS                              BIT(31)
+#define CSC_CONTROL_SOURCE_FORMAT_MASK                  (0x7 << 28)
+#define CSC_CONTROL_SOURCE_FORMAT_YUV422                (0x0 << 28)
+#define CSC_CONTROL_SOURCE_FORMAT_YUV420I               (0x1 << 28)
+#define CSC_CONTROL_SOURCE_FORMAT_YUV420                (0x2 << 28)
+#define CSC_CONTROL_SOURCE_FORMAT_YVU9                  (0x3 << 28)
+#define CSC_CONTROL_SOURCE_FORMAT_IYU1                  (0x4 << 28)
+#define CSC_CONTROL_SOURCE_FORMAT_IYU2                  (0x5 << 28)
+#define CSC_CONTROL_SOURCE_FORMAT_RGB565                (0x6 << 28)
+#define CSC_CONTROL_SOURCE_FORMAT_RGB8888               (0x7 << 28)
+#define CSC_CONTROL_DESTINATION_FORMAT_MASK             (0x3 << 26)
+#define CSC_CONTROL_DESTINATION_FORMAT_RGB565           (0x0 << 26)
+#define CSC_CONTROL_DESTINATION_FORMAT_RGB8888          (0x1 << 26)
+#define CSC_CONTROL_HORIZONTAL_FILTER                   BIT(25)
+#define CSC_CONTROL_VERTICAL_FILTER                     BIT(24)
+#define CSC_CONTROL_BYTE_ORDER                          BIT(23)
 
 #define DE_DATA_PORT                                    0x110000
 
 #define I2C_BYTE_COUNT                                  0x010040
-#define I2C_BYTE_COUNT_COUNT                            3:0
+#define I2C_BYTE_COUNT_COUNT_MASK                       0xf
 
 #define I2C_CTRL                                        0x010041
 #define I2C_CTRL_INT                                    BIT(4)
@@ -1619,14 +1256,11 @@
 #define I2C_STATUS_BSY                                  BIT(0)
 
 #define I2C_RESET                                       0x010042
-#define I2C_RESET_BUS_ERROR                             2:2
-#define I2C_RESET_BUS_ERROR_CLEAR                       0
+#define I2C_RESET_BUS_ERROR                             BIT(2)
 
 #define I2C_SLAVE_ADDRESS                               0x010043
-#define I2C_SLAVE_ADDRESS_ADDRESS                       7:1
-#define I2C_SLAVE_ADDRESS_RW                            0:0
-#define I2C_SLAVE_ADDRESS_RW_W                          0
-#define I2C_SLAVE_ADDRESS_RW_R                          1
+#define I2C_SLAVE_ADDRESS_ADDRESS_MASK                  (0x7f << 1)
+#define I2C_SLAVE_ADDRESS_RW                            BIT(0)
 
 #define I2C_DATA0                                       0x010044
 #define I2C_DATA1                                       0x010045
@@ -1647,120 +1281,59 @@
 
 
 #define ZV0_CAPTURE_CTRL                                0x090000
-#define ZV0_CAPTURE_CTRL_FIELD_INPUT                    27:27
-#define ZV0_CAPTURE_CTRL_FIELD_INPUT_EVEN_FIELD         0
-#define ZV0_CAPTURE_CTRL_FIELD_INPUT_ODD_FIELD          1
-#define ZV0_CAPTURE_CTRL_SCAN                           26:26
-#define ZV0_CAPTURE_CTRL_SCAN_PROGRESSIVE               0
-#define ZV0_CAPTURE_CTRL_SCAN_INTERLACE                 1
-#define ZV0_CAPTURE_CTRL_CURRENT_BUFFER                 25:25
-#define ZV0_CAPTURE_CTRL_CURRENT_BUFFER_0               0
-#define ZV0_CAPTURE_CTRL_CURRENT_BUFFER_1               1
-#define ZV0_CAPTURE_CTRL_VERTICAL_SYNC                  24:24
-#define ZV0_CAPTURE_CTRL_VERTICAL_SYNC_INACTIVE         0
-#define ZV0_CAPTURE_CTRL_VERTICAL_SYNC_ACTIVE           1
-#define ZV0_CAPTURE_CTRL_ADJ                            19:19
-#define ZV0_CAPTURE_CTRL_ADJ_NORMAL                     0
-#define ZV0_CAPTURE_CTRL_ADJ_DELAY                      1
-#define ZV0_CAPTURE_CTRL_HA                             18:18
-#define ZV0_CAPTURE_CTRL_HA_DISABLE                     0
-#define ZV0_CAPTURE_CTRL_HA_ENABLE                      1
-#define ZV0_CAPTURE_CTRL_VSK                            17:17
-#define ZV0_CAPTURE_CTRL_VSK_DISABLE                    0
-#define ZV0_CAPTURE_CTRL_VSK_ENABLE                     1
-#define ZV0_CAPTURE_CTRL_HSK                            16:16
-#define ZV0_CAPTURE_CTRL_HSK_DISABLE                    0
-#define ZV0_CAPTURE_CTRL_HSK_ENABLE                     1
-#define ZV0_CAPTURE_CTRL_FD                             15:15
-#define ZV0_CAPTURE_CTRL_FD_RISING                      0
-#define ZV0_CAPTURE_CTRL_FD_FALLING                     1
-#define ZV0_CAPTURE_CTRL_VP                             14:14
-#define ZV0_CAPTURE_CTRL_VP_HIGH                        0
-#define ZV0_CAPTURE_CTRL_VP_LOW                         1
-#define ZV0_CAPTURE_CTRL_HP                             13:13
-#define ZV0_CAPTURE_CTRL_HP_HIGH                        0
-#define ZV0_CAPTURE_CTRL_HP_LOW                         1
-#define ZV0_CAPTURE_CTRL_CP                             12:12
-#define ZV0_CAPTURE_CTRL_CP_HIGH                        0
-#define ZV0_CAPTURE_CTRL_CP_LOW                         1
-#define ZV0_CAPTURE_CTRL_UVS                            11:11
-#define ZV0_CAPTURE_CTRL_UVS_DISABLE                    0
-#define ZV0_CAPTURE_CTRL_UVS_ENABLE                     1
-#define ZV0_CAPTURE_CTRL_BS                             10:10
-#define ZV0_CAPTURE_CTRL_BS_DISABLE                     0
-#define ZV0_CAPTURE_CTRL_BS_ENABLE                      1
-#define ZV0_CAPTURE_CTRL_CS                             9:9
-#define ZV0_CAPTURE_CTRL_CS_16                          0
-#define ZV0_CAPTURE_CTRL_CS_8                           1
-#define ZV0_CAPTURE_CTRL_CF                             8:8
-#define ZV0_CAPTURE_CTRL_CF_YUV                         0
-#define ZV0_CAPTURE_CTRL_CF_RGB                         1
-#define ZV0_CAPTURE_CTRL_FS                             7:7
-#define ZV0_CAPTURE_CTRL_FS_DISABLE                     0
-#define ZV0_CAPTURE_CTRL_FS_ENABLE                      1
-#define ZV0_CAPTURE_CTRL_WEAVE                          6:6
-#define ZV0_CAPTURE_CTRL_WEAVE_DISABLE                  0
-#define ZV0_CAPTURE_CTRL_WEAVE_ENABLE                   1
-#define ZV0_CAPTURE_CTRL_BOB                            5:5
-#define ZV0_CAPTURE_CTRL_BOB_DISABLE                    0
-#define ZV0_CAPTURE_CTRL_BOB_ENABLE                     1
-#define ZV0_CAPTURE_CTRL_DB                             4:4
-#define ZV0_CAPTURE_CTRL_DB_DISABLE                     0
-#define ZV0_CAPTURE_CTRL_DB_ENABLE                      1
-#define ZV0_CAPTURE_CTRL_CC                             3:3
-#define ZV0_CAPTURE_CTRL_CC_CONTINUE                    0
-#define ZV0_CAPTURE_CTRL_CC_CONDITION                   1
-#define ZV0_CAPTURE_CTRL_RGB                            2:2
-#define ZV0_CAPTURE_CTRL_RGB_DISABLE                    0
-#define ZV0_CAPTURE_CTRL_RGB_ENABLE                     1
-#define ZV0_CAPTURE_CTRL_656                            1:1
-#define ZV0_CAPTURE_CTRL_656_DISABLE                    0
-#define ZV0_CAPTURE_CTRL_656_ENABLE                     1
-#define ZV0_CAPTURE_CTRL_CAP                            0:0
-#define ZV0_CAPTURE_CTRL_CAP_DISABLE                    0
-#define ZV0_CAPTURE_CTRL_CAP_ENABLE                     1
+#define ZV0_CAPTURE_CTRL_FIELD_INPUT                    BIT(27)
+#define ZV0_CAPTURE_CTRL_SCAN                           BIT(26)
+#define ZV0_CAPTURE_CTRL_CURRENT_BUFFER                 BIT(25)
+#define ZV0_CAPTURE_CTRL_VERTICAL_SYNC                  BIT(24)
+#define ZV0_CAPTURE_CTRL_ADJ                            BIT(19)
+#define ZV0_CAPTURE_CTRL_HA                             BIT(18)
+#define ZV0_CAPTURE_CTRL_VSK                            BIT(17)
+#define ZV0_CAPTURE_CTRL_HSK                            BIT(16)
+#define ZV0_CAPTURE_CTRL_FD                             BIT(15)
+#define ZV0_CAPTURE_CTRL_VP                             BIT(14)
+#define ZV0_CAPTURE_CTRL_HP                             BIT(13)
+#define ZV0_CAPTURE_CTRL_CP                             BIT(12)
+#define ZV0_CAPTURE_CTRL_UVS                            BIT(11)
+#define ZV0_CAPTURE_CTRL_BS                             BIT(10)
+#define ZV0_CAPTURE_CTRL_CS                             BIT(9)
+#define ZV0_CAPTURE_CTRL_CF                             BIT(8)
+#define ZV0_CAPTURE_CTRL_FS                             BIT(7)
+#define ZV0_CAPTURE_CTRL_WEAVE                          BIT(6)
+#define ZV0_CAPTURE_CTRL_BOB                            BIT(5)
+#define ZV0_CAPTURE_CTRL_DB                             BIT(4)
+#define ZV0_CAPTURE_CTRL_CC                             BIT(3)
+#define ZV0_CAPTURE_CTRL_RGB                            BIT(2)
+#define ZV0_CAPTURE_CTRL_656                            BIT(1)
+#define ZV0_CAPTURE_CTRL_CAP                            BIT(0)
 
 #define ZV0_CAPTURE_CLIP                                0x090004
-#define ZV0_CAPTURE_CLIP_YCLIP_EVEN_FIELD                25:16
-#define ZV0_CAPTURE_CLIP_YCLIP                          25:16
-#define ZV0_CAPTURE_CLIP_XCLIP                          9:0
+#define ZV0_CAPTURE_CLIP_EYCLIP_MASK                    (0x3ff << 16)
+#define ZV0_CAPTURE_CLIP_XCLIP_MASK                     0x3ff
 
 #define ZV0_CAPTURE_SIZE                                0x090008
-#define ZV0_CAPTURE_SIZE_HEIGHT                         26:16
-#define ZV0_CAPTURE_SIZE_WIDTH                          10:0
+#define ZV0_CAPTURE_SIZE_HEIGHT_MASK                    (0x7ff << 16)
+#define ZV0_CAPTURE_SIZE_WIDTH_MASK                     0x7ff
 
 #define ZV0_CAPTURE_BUF0_ADDRESS                        0x09000C
-#define ZV0_CAPTURE_BUF0_ADDRESS_STATUS                 31:31
-#define ZV0_CAPTURE_BUF0_ADDRESS_STATUS_CURRENT         0
-#define ZV0_CAPTURE_BUF0_ADDRESS_STATUS_PENDING         1
-#define ZV0_CAPTURE_BUF0_ADDRESS_EXT                    27:27
-#define ZV0_CAPTURE_BUF0_ADDRESS_EXT_LOCAL              0
-#define ZV0_CAPTURE_BUF0_ADDRESS_EXT_EXTERNAL           1
-#define ZV0_CAPTURE_BUF0_ADDRESS_CS                     26:26
-#define ZV0_CAPTURE_BUF0_ADDRESS_CS_0                   0
-#define ZV0_CAPTURE_BUF0_ADDRESS_CS_1                   1
-#define ZV0_CAPTURE_BUF0_ADDRESS_ADDRESS                25:0
+#define ZV0_CAPTURE_BUF0_ADDRESS_STATUS                 BIT(31)
+#define ZV0_CAPTURE_BUF0_ADDRESS_EXT                    BIT(27)
+#define ZV0_CAPTURE_BUF0_ADDRESS_CS                     BIT(26)
+#define ZV0_CAPTURE_BUF0_ADDRESS_ADDRESS_MASK           0x3ffffff
 
 #define ZV0_CAPTURE_BUF1_ADDRESS                        0x090010
-#define ZV0_CAPTURE_BUF1_ADDRESS_STATUS                 31:31
-#define ZV0_CAPTURE_BUF1_ADDRESS_STATUS_CURRENT         0
-#define ZV0_CAPTURE_BUF1_ADDRESS_STATUS_PENDING         1
-#define ZV0_CAPTURE_BUF1_ADDRESS_EXT                    27:27
-#define ZV0_CAPTURE_BUF1_ADDRESS_EXT_LOCAL              0
-#define ZV0_CAPTURE_BUF1_ADDRESS_EXT_EXTERNAL           1
-#define ZV0_CAPTURE_BUF1_ADDRESS_CS                     26:26
-#define ZV0_CAPTURE_BUF1_ADDRESS_CS_0                   0
-#define ZV0_CAPTURE_BUF1_ADDRESS_CS_1                   1
-#define ZV0_CAPTURE_BUF1_ADDRESS_ADDRESS                25:0
+#define ZV0_CAPTURE_BUF1_ADDRESS_STATUS                 BIT(31)
+#define ZV0_CAPTURE_BUF1_ADDRESS_EXT                    BIT(27)
+#define ZV0_CAPTURE_BUF1_ADDRESS_CS                     BIT(26)
+#define ZV0_CAPTURE_BUF1_ADDRESS_ADDRESS_MASK           0x3ffffff
 
 #define ZV0_CAPTURE_BUF_OFFSET                          0x090014
 #ifndef VALIDATION_CHIP
-    #define ZV0_CAPTURE_BUF_OFFSET_YCLIP_ODD_FIELD      25:16
+    #define ZV0_CAPTURE_BUF_OFFSET_YCLIP_ODD_FIELD      (0x3ff << 16)
 #endif
-#define ZV0_CAPTURE_BUF_OFFSET_OFFSET                   15:0
+#define ZV0_CAPTURE_BUF_OFFSET_OFFSET_MASK              0xffff
 
 #define ZV0_CAPTURE_FIFO_CTRL                           0x090018
-#define ZV0_CAPTURE_FIFO_CTRL_FIFO                      2:0
+#define ZV0_CAPTURE_FIFO_CTRL_FIFO_MASK                 0x7
 #define ZV0_CAPTURE_FIFO_CTRL_FIFO_0                    0
 #define ZV0_CAPTURE_FIFO_CTRL_FIFO_1                    1
 #define ZV0_CAPTURE_FIFO_CTRL_FIFO_2                    2
@@ -1771,130 +1344,68 @@
 #define ZV0_CAPTURE_FIFO_CTRL_FIFO_7                    7
 
 #define ZV0_CAPTURE_YRGB_CONST                          0x09001C
-#define ZV0_CAPTURE_YRGB_CONST_Y                        31:24
-#define ZV0_CAPTURE_YRGB_CONST_R                        23:16
-#define ZV0_CAPTURE_YRGB_CONST_G                        15:8
-#define ZV0_CAPTURE_YRGB_CONST_B                        7:0
+#define ZV0_CAPTURE_YRGB_CONST_Y_MASK                   (0xff << 24)
+#define ZV0_CAPTURE_YRGB_CONST_R_MASK                   (0xff << 16)
+#define ZV0_CAPTURE_YRGB_CONST_G_MASK                   (0xff << 8)
+#define ZV0_CAPTURE_YRGB_CONST_B_MASK                   0xff
 
 #define ZV0_CAPTURE_LINE_COMP                           0x090020
-#define ZV0_CAPTURE_LINE_COMP_LC                        10:0
+#define ZV0_CAPTURE_LINE_COMP_LC_MASK                   0x7ff
 
 /* ZV1 */
 
 #define ZV1_CAPTURE_CTRL                                0x098000
-#define ZV1_CAPTURE_CTRL_FIELD_INPUT                    27:27
-#define ZV1_CAPTURE_CTRL_FIELD_INPUT_EVEN_FIELD         0
-#define ZV1_CAPTURE_CTRL_FIELD_INPUT_ODD_FIELD          0
-#define ZV1_CAPTURE_CTRL_SCAN                           26:26
-#define ZV1_CAPTURE_CTRL_SCAN_PROGRESSIVE               0
-#define ZV1_CAPTURE_CTRL_SCAN_INTERLACE                 1
-#define ZV1_CAPTURE_CTRL_CURRENT_BUFFER                 25:25
-#define ZV1_CAPTURE_CTRL_CURRENT_BUFFER_0               0
-#define ZV1_CAPTURE_CTRL_CURRENT_BUFFER_1               1
-#define ZV1_CAPTURE_CTRL_VERTICAL_SYNC                  24:24
-#define ZV1_CAPTURE_CTRL_VERTICAL_SYNC_INACTIVE         0
-#define ZV1_CAPTURE_CTRL_VERTICAL_SYNC_ACTIVE           1
-#define ZV1_CAPTURE_CTRL_PANEL                          20:20
-#define ZV1_CAPTURE_CTRL_PANEL_DISABLE                  0
-#define ZV1_CAPTURE_CTRL_PANEL_ENABLE                   1
-#define ZV1_CAPTURE_CTRL_ADJ                            19:19
-#define ZV1_CAPTURE_CTRL_ADJ_NORMAL                     0
-#define ZV1_CAPTURE_CTRL_ADJ_DELAY                      1
-#define ZV1_CAPTURE_CTRL_HA                             18:18
-#define ZV1_CAPTURE_CTRL_HA_DISABLE                     0
-#define ZV1_CAPTURE_CTRL_HA_ENABLE                      1
-#define ZV1_CAPTURE_CTRL_VSK                            17:17
-#define ZV1_CAPTURE_CTRL_VSK_DISABLE                    0
-#define ZV1_CAPTURE_CTRL_VSK_ENABLE                     1
-#define ZV1_CAPTURE_CTRL_HSK                            16:16
-#define ZV1_CAPTURE_CTRL_HSK_DISABLE                    0
-#define ZV1_CAPTURE_CTRL_HSK_ENABLE                     1
-#define ZV1_CAPTURE_CTRL_FD                             15:15
-#define ZV1_CAPTURE_CTRL_FD_RISING                      0
-#define ZV1_CAPTURE_CTRL_FD_FALLING                     1
-#define ZV1_CAPTURE_CTRL_VP                             14:14
-#define ZV1_CAPTURE_CTRL_VP_HIGH                        0
-#define ZV1_CAPTURE_CTRL_VP_LOW                         1
-#define ZV1_CAPTURE_CTRL_HP                             13:13
-#define ZV1_CAPTURE_CTRL_HP_HIGH                        0
-#define ZV1_CAPTURE_CTRL_HP_LOW                         1
-#define ZV1_CAPTURE_CTRL_CP                             12:12
-#define ZV1_CAPTURE_CTRL_CP_HIGH                        0
-#define ZV1_CAPTURE_CTRL_CP_LOW                         1
-#define ZV1_CAPTURE_CTRL_UVS                            11:11
-#define ZV1_CAPTURE_CTRL_UVS_DISABLE                    0
-#define ZV1_CAPTURE_CTRL_UVS_ENABLE                     1
-#define ZV1_CAPTURE_CTRL_BS                             10:10
-#define ZV1_CAPTURE_CTRL_BS_DISABLE                     0
-#define ZV1_CAPTURE_CTRL_BS_ENABLE                      1
-#define ZV1_CAPTURE_CTRL_CS                             9:9
-#define ZV1_CAPTURE_CTRL_CS_16                          0
-#define ZV1_CAPTURE_CTRL_CS_8                           1
-#define ZV1_CAPTURE_CTRL_CF                             8:8
-#define ZV1_CAPTURE_CTRL_CF_YUV                         0
-#define ZV1_CAPTURE_CTRL_CF_RGB                         1
-#define ZV1_CAPTURE_CTRL_FS                             7:7
-#define ZV1_CAPTURE_CTRL_FS_DISABLE                     0
-#define ZV1_CAPTURE_CTRL_FS_ENABLE                      1
-#define ZV1_CAPTURE_CTRL_WEAVE                          6:6
-#define ZV1_CAPTURE_CTRL_WEAVE_DISABLE                  0
-#define ZV1_CAPTURE_CTRL_WEAVE_ENABLE                   1
-#define ZV1_CAPTURE_CTRL_BOB                            5:5
-#define ZV1_CAPTURE_CTRL_BOB_DISABLE                    0
-#define ZV1_CAPTURE_CTRL_BOB_ENABLE                     1
-#define ZV1_CAPTURE_CTRL_DB                             4:4
-#define ZV1_CAPTURE_CTRL_DB_DISABLE                     0
-#define ZV1_CAPTURE_CTRL_DB_ENABLE                      1
-#define ZV1_CAPTURE_CTRL_CC                             3:3
-#define ZV1_CAPTURE_CTRL_CC_CONTINUE                    0
-#define ZV1_CAPTURE_CTRL_CC_CONDITION                   1
-#define ZV1_CAPTURE_CTRL_RGB                            2:2
-#define ZV1_CAPTURE_CTRL_RGB_DISABLE                    0
-#define ZV1_CAPTURE_CTRL_RGB_ENABLE                     1
-#define ZV1_CAPTURE_CTRL_656                            1:1
-#define ZV1_CAPTURE_CTRL_656_DISABLE                    0
-#define ZV1_CAPTURE_CTRL_656_ENABLE                     1
-#define ZV1_CAPTURE_CTRL_CAP                            0:0
-#define ZV1_CAPTURE_CTRL_CAP_DISABLE                    0
-#define ZV1_CAPTURE_CTRL_CAP_ENABLE                     1
+#define ZV1_CAPTURE_CTRL_FIELD_INPUT                    BIT(27)
+#define ZV1_CAPTURE_CTRL_SCAN                           BIT(26)
+#define ZV1_CAPTURE_CTRL_CURRENT_BUFFER                 BIT(25)
+#define ZV1_CAPTURE_CTRL_VERTICAL_SYNC                  BIT(24)
+#define ZV1_CAPTURE_CTRL_PANEL                          BIT(20)
+#define ZV1_CAPTURE_CTRL_ADJ                            BIT(19)
+#define ZV1_CAPTURE_CTRL_HA                             BIT(18)
+#define ZV1_CAPTURE_CTRL_VSK                            BIT(17)
+#define ZV1_CAPTURE_CTRL_HSK                            BIT(16)
+#define ZV1_CAPTURE_CTRL_FD                             BIT(15)
+#define ZV1_CAPTURE_CTRL_VP                             BIT(14)
+#define ZV1_CAPTURE_CTRL_HP                             BIT(13)
+#define ZV1_CAPTURE_CTRL_CP                             BIT(12)
+#define ZV1_CAPTURE_CTRL_UVS                            BIT(11)
+#define ZV1_CAPTURE_CTRL_BS                             BIT(10)
+#define ZV1_CAPTURE_CTRL_CS                             BIT(9)
+#define ZV1_CAPTURE_CTRL_CF                             BIT(8)
+#define ZV1_CAPTURE_CTRL_FS                             BIT(7)
+#define ZV1_CAPTURE_CTRL_WEAVE                          BIT(6)
+#define ZV1_CAPTURE_CTRL_BOB                            BIT(5)
+#define ZV1_CAPTURE_CTRL_DB                             BIT(4)
+#define ZV1_CAPTURE_CTRL_CC                             BIT(3)
+#define ZV1_CAPTURE_CTRL_RGB                            BIT(2)
+#define ZV1_CAPTURE_CTRL_656                            BIT(1)
+#define ZV1_CAPTURE_CTRL_CAP                            BIT(0)
 
 #define ZV1_CAPTURE_CLIP                                0x098004
-#define ZV1_CAPTURE_CLIP_YCLIP                          25:16
-#define ZV1_CAPTURE_CLIP_XCLIP                          9:0
+#define ZV1_CAPTURE_CLIP_YCLIP_MASK                     (0x3ff << 16)
+#define ZV1_CAPTURE_CLIP_XCLIP_MASK                     0x3ff
 
 #define ZV1_CAPTURE_SIZE                                0x098008
-#define ZV1_CAPTURE_SIZE_HEIGHT                         26:16
-#define ZV1_CAPTURE_SIZE_WIDTH                          10:0
+#define ZV1_CAPTURE_SIZE_HEIGHT_MASK                    (0x7ff << 16)
+#define ZV1_CAPTURE_SIZE_WIDTH_MASK                     0x7ff
 
 #define ZV1_CAPTURE_BUF0_ADDRESS                        0x09800C
-#define ZV1_CAPTURE_BUF0_ADDRESS_STATUS                 31:31
-#define ZV1_CAPTURE_BUF0_ADDRESS_STATUS_CURRENT         0
-#define ZV1_CAPTURE_BUF0_ADDRESS_STATUS_PENDING         1
-#define ZV1_CAPTURE_BUF0_ADDRESS_EXT                    27:27
-#define ZV1_CAPTURE_BUF0_ADDRESS_EXT_LOCAL              0
-#define ZV1_CAPTURE_BUF0_ADDRESS_EXT_EXTERNAL           1
-#define ZV1_CAPTURE_BUF0_ADDRESS_CS                     26:26
-#define ZV1_CAPTURE_BUF0_ADDRESS_CS_0                   0
-#define ZV1_CAPTURE_BUF0_ADDRESS_CS_1                   1
-#define ZV1_CAPTURE_BUF0_ADDRESS_ADDRESS                25:0
+#define ZV1_CAPTURE_BUF0_ADDRESS_STATUS                 BIT(31)
+#define ZV1_CAPTURE_BUF0_ADDRESS_EXT                    BIT(27)
+#define ZV1_CAPTURE_BUF0_ADDRESS_CS                     BIT(26)
+#define ZV1_CAPTURE_BUF0_ADDRESS_ADDRESS_MASK           0x3ffffff
 
 #define ZV1_CAPTURE_BUF1_ADDRESS                        0x098010
-#define ZV1_CAPTURE_BUF1_ADDRESS_STATUS                 31:31
-#define ZV1_CAPTURE_BUF1_ADDRESS_STATUS_CURRENT         0
-#define ZV1_CAPTURE_BUF1_ADDRESS_STATUS_PENDING         1
-#define ZV1_CAPTURE_BUF1_ADDRESS_EXT                    27:27
-#define ZV1_CAPTURE_BUF1_ADDRESS_EXT_LOCAL              0
-#define ZV1_CAPTURE_BUF1_ADDRESS_EXT_EXTERNAL           1
-#define ZV1_CAPTURE_BUF1_ADDRESS_CS                     26:26
-#define ZV1_CAPTURE_BUF1_ADDRESS_CS_0                   0
-#define ZV1_CAPTURE_BUF1_ADDRESS_CS_1                   1
-#define ZV1_CAPTURE_BUF1_ADDRESS_ADDRESS                25:0
+#define ZV1_CAPTURE_BUF1_ADDRESS_STATUS                 BIT(31)
+#define ZV1_CAPTURE_BUF1_ADDRESS_EXT                    BIT(27)
+#define ZV1_CAPTURE_BUF1_ADDRESS_CS                     BIT(26)
+#define ZV1_CAPTURE_BUF1_ADDRESS_ADDRESS_MASK           0x3ffffff
 
 #define ZV1_CAPTURE_BUF_OFFSET                          0x098014
-#define ZV1_CAPTURE_BUF_OFFSET_OFFSET                   15:0
+#define ZV1_CAPTURE_BUF_OFFSET_OFFSET_MASK              0xffff
 
 #define ZV1_CAPTURE_FIFO_CTRL                           0x098018
-#define ZV1_CAPTURE_FIFO_CTRL_FIFO                      2:0
+#define ZV1_CAPTURE_FIFO_CTRL_FIFO_MASK                 0x7
 #define ZV1_CAPTURE_FIFO_CTRL_FIFO_0                    0
 #define ZV1_CAPTURE_FIFO_CTRL_FIFO_1                    1
 #define ZV1_CAPTURE_FIFO_CTRL_FIFO_2                    2
@@ -1905,34 +1416,24 @@
 #define ZV1_CAPTURE_FIFO_CTRL_FIFO_7                    7
 
 #define ZV1_CAPTURE_YRGB_CONST                          0x09801C
-#define ZV1_CAPTURE_YRGB_CONST_Y                        31:24
-#define ZV1_CAPTURE_YRGB_CONST_R                        23:16
-#define ZV1_CAPTURE_YRGB_CONST_G                        15:8
-#define ZV1_CAPTURE_YRGB_CONST_B                        7:0
+#define ZV1_CAPTURE_YRGB_CONST_Y_MASK                   (0xff << 24)
+#define ZV1_CAPTURE_YRGB_CONST_R_MASK                   (0xff << 16)
+#define ZV1_CAPTURE_YRGB_CONST_G_MASK                   (0xff << 8)
+#define ZV1_CAPTURE_YRGB_CONST_B_MASK                   0xff
 
 #define DMA_1_SOURCE                                    0x0D0010
-#define DMA_1_SOURCE_ADDRESS_EXT                        27:27
-#define DMA_1_SOURCE_ADDRESS_EXT_LOCAL                  0
-#define DMA_1_SOURCE_ADDRESS_EXT_EXTERNAL               1
-#define DMA_1_SOURCE_ADDRESS_CS                         26:26
-#define DMA_1_SOURCE_ADDRESS_CS_0                       0
-#define DMA_1_SOURCE_ADDRESS_CS_1                       1
-#define DMA_1_SOURCE_ADDRESS                            25:0
+#define DMA_1_SOURCE_ADDRESS_EXT                        BIT(27)
+#define DMA_1_SOURCE_ADDRESS_CS                         BIT(26)
+#define DMA_1_SOURCE_ADDRESS_MASK                       0x3ffffff
 
 #define DMA_1_DESTINATION                               0x0D0014
-#define DMA_1_DESTINATION_ADDRESS_EXT                   27:27
-#define DMA_1_DESTINATION_ADDRESS_EXT_LOCAL             0
-#define DMA_1_DESTINATION_ADDRESS_EXT_EXTERNAL          1
-#define DMA_1_DESTINATION_ADDRESS_CS                    26:26
-#define DMA_1_DESTINATION_ADDRESS_CS_0                  0
-#define DMA_1_DESTINATION_ADDRESS_CS_1                  1
-#define DMA_1_DESTINATION_ADDRESS                       25:0
+#define DMA_1_DESTINATION_ADDRESS_EXT                   BIT(27)
+#define DMA_1_DESTINATION_ADDRESS_CS                    BIT(26)
+#define DMA_1_DESTINATION_ADDRESS_MASK                  0x3ffffff
 
 #define DMA_1_SIZE_CONTROL                              0x0D0018
-#define DMA_1_SIZE_CONTROL_STATUS                       31:31
-#define DMA_1_SIZE_CONTROL_STATUS_IDLE                  0
-#define DMA_1_SIZE_CONTROL_STATUS_ACTIVE                1
-#define DMA_1_SIZE_CONTROL_SIZE                         23:0
+#define DMA_1_SIZE_CONTROL_STATUS                       BIT(31)
+#define DMA_1_SIZE_CONTROL_SIZE_MASK                    0xffffff
 
 #define DMA_ABORT_INTERRUPT                             0x0D0020
 #define DMA_ABORT_INTERRUPT_ABORT_1                     BIT(5)
@@ -1946,16 +1447,12 @@
 
 
 #define GPIO_DATA_SM750LE                               0x020018
-#define GPIO_DATA_SM750LE_1                             1:1
-#define GPIO_DATA_SM750LE_0                             0:0
+#define GPIO_DATA_SM750LE_1                             BIT(1)
+#define GPIO_DATA_SM750LE_0                             BIT(0)
 
 #define GPIO_DATA_DIRECTION_SM750LE                     0x02001C
-#define GPIO_DATA_DIRECTION_SM750LE_1                   1:1
-#define GPIO_DATA_DIRECTION_SM750LE_1_INPUT             0
-#define GPIO_DATA_DIRECTION_SM750LE_1_OUTPUT            1
-#define GPIO_DATA_DIRECTION_SM750LE_0                   0:0
-#define GPIO_DATA_DIRECTION_SM750LE_0_INPUT             0
-#define GPIO_DATA_DIRECTION_SM750LE_0_OUTPUT            1
+#define GPIO_DATA_DIRECTION_SM750LE_1                   BIT(1)
+#define GPIO_DATA_DIRECTION_SM750LE_0                   BIT(0)
 
 
 #endif
diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c
index c9d4871..59c7455 100644
--- a/drivers/staging/sm750fb/sm750.c
+++ b/drivers/staging/sm750fb/sm750.c
@@ -13,8 +13,6 @@
 #include <linux/vmalloc.h>
 #include <linux/pagemap.h>
 #include <linux/screen_info.h>
-#include <linux/vmalloc.h>
-#include <linux/pagemap.h>
 #include <linux/console.h>
 #include <asm/fb.h>
 #include "sm750.h"
diff --git a/drivers/staging/sm750fb/sm750_accel.c b/drivers/staging/sm750fb/sm750_accel.c
index e150680..9aa4066 100644
--- a/drivers/staging/sm750fb/sm750_accel.c
+++ b/drivers/staging/sm750fb/sm750_accel.c
@@ -17,7 +17,6 @@
 
 #include "sm750.h"
 #include "sm750_accel.h"
-#include "sm750_help.h"
 static inline void write_dpr(struct lynx_accel *accel, int offset, u32 regValue)
 {
 	writel(regValue, accel->dprBase + offset);
@@ -41,20 +40,16 @@ void hw_de_init(struct lynx_accel *accel)
 	write_dpr(accel, DE_MASKS, 0xFFFFFFFF);
 
 	/* dpr1c */
-	reg = FIELD_SET(0, DE_STRETCH_FORMAT, PATTERN_XY, NORMAL)|
-		FIELD_VALUE(0, DE_STRETCH_FORMAT, PATTERN_Y, 0)|
-		FIELD_VALUE(0, DE_STRETCH_FORMAT, PATTERN_X, 0)|
-		FIELD_SET(0, DE_STRETCH_FORMAT, ADDRESSING, XY)|
-		FIELD_VALUE(0, DE_STRETCH_FORMAT, SOURCE_HEIGHT, 3);
-
-	clr = FIELD_CLEAR(DE_STRETCH_FORMAT, PATTERN_XY)&
-		FIELD_CLEAR(DE_STRETCH_FORMAT, PATTERN_Y)&
-		FIELD_CLEAR(DE_STRETCH_FORMAT, PATTERN_X)&
-		FIELD_CLEAR(DE_STRETCH_FORMAT, ADDRESSING)&
-		FIELD_CLEAR(DE_STRETCH_FORMAT, SOURCE_HEIGHT);
+	reg =  0x3;
+
+	clr = DE_STRETCH_FORMAT_PATTERN_XY | DE_STRETCH_FORMAT_PATTERN_Y_MASK |
+		DE_STRETCH_FORMAT_PATTERN_X_MASK |
+		DE_STRETCH_FORMAT_ADDRESSING_MASK |
+		DE_STRETCH_FORMAT_SOURCE_HEIGHT_MASK;
 
 	/* DE_STRETCH bpp format need be initialized in setMode routine */
-	write_dpr(accel, DE_STRETCH_FORMAT, (read_dpr(accel, DE_STRETCH_FORMAT) & clr) | reg);
+	write_dpr(accel, DE_STRETCH_FORMAT,
+		  (read_dpr(accel, DE_STRETCH_FORMAT) & ~clr) | reg);
 
 	/* disable clipping and transparent */
 	write_dpr(accel, DE_CLIP_TL, 0); /* dpr2c */
@@ -63,16 +58,11 @@ void hw_de_init(struct lynx_accel *accel)
 	write_dpr(accel, DE_COLOR_COMPARE_MASK, 0); /* dpr24 */
 	write_dpr(accel, DE_COLOR_COMPARE, 0);
 
-	reg = FIELD_SET(0, DE_CONTROL, TRANSPARENCY, DISABLE)|
-		FIELD_SET(0, DE_CONTROL, TRANSPARENCY_MATCH, OPAQUE)|
-		FIELD_SET(0, DE_CONTROL, TRANSPARENCY_SELECT, SOURCE);
-
-	clr = FIELD_CLEAR(DE_CONTROL, TRANSPARENCY)&
-		FIELD_CLEAR(DE_CONTROL, TRANSPARENCY_MATCH)&
-		FIELD_CLEAR(DE_CONTROL, TRANSPARENCY_SELECT);
+	clr = DE_CONTROL_TRANSPARENCY | DE_CONTROL_TRANSPARENCY_MATCH |
+		DE_CONTROL_TRANSPARENCY_SELECT;
 
 	/* dpr0c */
-	write_dpr(accel, DE_CONTROL, (read_dpr(accel, DE_CONTROL)&clr)|reg);
+	write_dpr(accel, DE_CONTROL, read_dpr(accel, DE_CONTROL) & ~clr);
 }
 
 /* set2dformat only be called from setmode functions
@@ -85,7 +75,9 @@ void hw_set2dformat(struct lynx_accel *accel, int fmt)
 
 	/* fmt=0,1,2 for 8,16,32,bpp on sm718/750/502 */
 	reg = read_dpr(accel, DE_STRETCH_FORMAT);
-	reg = FIELD_VALUE(reg, DE_STRETCH_FORMAT, PIXEL_FORMAT, fmt);
+	reg &= ~DE_STRETCH_FORMAT_PIXEL_FORMAT_MASK;
+	reg |= ((fmt << DE_STRETCH_FORMAT_PIXEL_FORMAT_SHIFT) &
+		DE_STRETCH_FORMAT_PIXEL_FORMAT_MASK);
 	write_dpr(accel, DE_STRETCH_FORMAT, reg);
 }
 
@@ -105,31 +97,28 @@ int hw_fillrect(struct lynx_accel *accel,
 
 	write_dpr(accel, DE_WINDOW_DESTINATION_BASE, base); /* dpr40 */
 	write_dpr(accel, DE_PITCH,
-			FIELD_VALUE(0, DE_PITCH, DESTINATION, pitch/Bpp)|
-			FIELD_VALUE(0, DE_PITCH, SOURCE, pitch/Bpp)); /* dpr10 */
+		  ((pitch / Bpp << DE_PITCH_DESTINATION_SHIFT) &
+		   DE_PITCH_DESTINATION_MASK) |
+		  (pitch / Bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */
 
 	write_dpr(accel, DE_WINDOW_WIDTH,
-			FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION, pitch/Bpp)|
-			FIELD_VALUE(0, DE_WINDOW_WIDTH, SOURCE, pitch/Bpp)); /* dpr44 */
+		  ((pitch / Bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
+		   DE_WINDOW_WIDTH_DST_MASK) |
+		   (pitch / Bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr44 */
 
 	write_dpr(accel, DE_FOREGROUND, color); /* DPR14 */
 
 	write_dpr(accel, DE_DESTINATION,
-			FIELD_SET(0, DE_DESTINATION, WRAP, DISABLE)|
-			FIELD_VALUE(0, DE_DESTINATION, X, x)|
-			FIELD_VALUE(0, DE_DESTINATION, Y, y)); /* dpr4 */
+		  ((x << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) |
+		  (y & DE_DESTINATION_Y_MASK)); /* dpr4 */
 
 	write_dpr(accel, DE_DIMENSION,
-			FIELD_VALUE(0, DE_DIMENSION, X, width)|
-			FIELD_VALUE(0, DE_DIMENSION, Y_ET, height)); /* dpr8 */
+		  ((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
+		  (height & DE_DIMENSION_Y_ET_MASK)); /* dpr8 */
 
-	deCtrl =
-		FIELD_SET(0, DE_CONTROL, STATUS, START)|
-		FIELD_SET(0, DE_CONTROL, DIRECTION, LEFT_TO_RIGHT)|
-		FIELD_SET(0, DE_CONTROL, LAST_PIXEL, ON)|
-		FIELD_SET(0, DE_CONTROL, COMMAND, RECTANGLE_FILL)|
-		FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2)|
-		FIELD_VALUE(0, DE_CONTROL, ROP, rop); /* dpr0xc */
+	deCtrl = DE_CONTROL_STATUS | DE_CONTROL_LAST_PIXEL |
+		DE_CONTROL_COMMAND_RECTANGLE_FILL | DE_CONTROL_ROP_SELECT |
+		(rop & DE_CONTROL_ROP_MASK); /* dpr0xc */
 
 	write_dpr(accel, DE_CONTROL, deCtrl);
 	return 0;
@@ -237,18 +226,18 @@ unsigned int rop2)   /* ROP value */
        Note that input pitch is BYTE value, but the 2D Pitch register uses
        pixel values. Need Byte to pixel conversion.
     */
-	{
-		write_dpr(accel, DE_PITCH,
-				FIELD_VALUE(0, DE_PITCH, DESTINATION, (dPitch/Bpp)) |
-				FIELD_VALUE(0, DE_PITCH, SOURCE,      (sPitch/Bpp))); /* dpr10 */
-	}
+	write_dpr(accel, DE_PITCH,
+		  ((dPitch / Bpp << DE_PITCH_DESTINATION_SHIFT) &
+		   DE_PITCH_DESTINATION_MASK) |
+		  (sPitch / Bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */
 
     /* Screen Window width in Pixels.
        2D engine uses this value to calculate the linear address in frame buffer for a given point.
     */
 	write_dpr(accel, DE_WINDOW_WIDTH,
-	FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION, (dPitch/Bpp)) |
-	FIELD_VALUE(0, DE_WINDOW_WIDTH, SOURCE,      (sPitch/Bpp))); /* dpr3c */
+		  ((dPitch / Bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
+		   DE_WINDOW_WIDTH_DST_MASK) |
+		  (sPitch / Bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr3c */
 
 	if (accel->de_wait() != 0)
 		return -1;
@@ -256,24 +245,18 @@ unsigned int rop2)   /* ROP value */
 	{
 
 	write_dpr(accel, DE_SOURCE,
-		  FIELD_SET(0, DE_SOURCE, WRAP, DISABLE) |
-		  FIELD_VALUE(0, DE_SOURCE, X_K1, sx)   |
-		  FIELD_VALUE(0, DE_SOURCE, Y_K2, sy)); /* dpr0 */
+		  ((sx << DE_SOURCE_X_K1_SHIFT) & DE_SOURCE_X_K1_MASK) |
+		  (sy & DE_SOURCE_Y_K2_MASK)); /* dpr0 */
 	write_dpr(accel, DE_DESTINATION,
-		  FIELD_SET(0, DE_DESTINATION, WRAP, DISABLE) |
-		  FIELD_VALUE(0, DE_DESTINATION, X,    dx)  |
-		  FIELD_VALUE(0, DE_DESTINATION, Y,    dy)); /* dpr04 */
+		  ((dx << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) |
+		  (dy & DE_DESTINATION_Y_MASK)); /* dpr04 */
 	write_dpr(accel, DE_DIMENSION,
-		  FIELD_VALUE(0, DE_DIMENSION, X,    width) |
-		  FIELD_VALUE(0, DE_DIMENSION, Y_ET, height)); /* dpr08 */
-
-	de_ctrl = FIELD_VALUE(0, DE_CONTROL, ROP, rop2) |
-		  FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2) |
-		  FIELD_SET(0, DE_CONTROL, COMMAND, BITBLT) |
-		  ((nDirection == RIGHT_TO_LEFT) ?
-		  FIELD_SET(0, DE_CONTROL, DIRECTION, RIGHT_TO_LEFT)
-		  : FIELD_SET(0, DE_CONTROL, DIRECTION, LEFT_TO_RIGHT)) |
-		  FIELD_SET(0, DE_CONTROL, STATUS, START);
+		  ((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
+		  (height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */
+
+	de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) | DE_CONTROL_ROP_SELECT |
+		((nDirection == RIGHT_TO_LEFT) ? DE_CONTROL_DIRECTION : 0) |
+		DE_CONTROL_COMMAND_BITBLT | DE_CONTROL_STATUS;
 	write_dpr(accel, DE_CONTROL, de_ctrl); /* dpr0c */
 
 	}
@@ -287,10 +270,8 @@ static unsigned int deGetTransparency(struct lynx_accel *accel)
 
 	de_ctrl = read_dpr(accel, DE_CONTROL);
 
-	de_ctrl &=
-		   FIELD_MASK(DE_CONTROL_TRANSPARENCY_MATCH) |
-		   FIELD_MASK(DE_CONTROL_TRANSPARENCY_SELECT)|
-		   FIELD_MASK(DE_CONTROL_TRANSPARENCY);
+	de_ctrl &= (DE_CONTROL_TRANSPARENCY_MATCH |
+		    DE_CONTROL_TRANSPARENCY_SELECT | DE_CONTROL_TRANSPARENCY);
 
 	return de_ctrl;
 }
@@ -338,42 +319,39 @@ int hw_imageblit(struct lynx_accel *accel,
        Note that input pitch is BYTE value, but the 2D Pitch register uses
        pixel values. Need Byte to pixel conversion.
     */
-	{
-		write_dpr(accel, DE_PITCH,
-				FIELD_VALUE(0, DE_PITCH, DESTINATION, dPitch/bytePerPixel) |
-				FIELD_VALUE(0, DE_PITCH, SOURCE,      dPitch/bytePerPixel)); /* dpr10 */
-	}
+	write_dpr(accel, DE_PITCH,
+		  ((dPitch / bytePerPixel << DE_PITCH_DESTINATION_SHIFT) &
+		   DE_PITCH_DESTINATION_MASK) |
+		  (dPitch / bytePerPixel & DE_PITCH_SOURCE_MASK)); /* dpr10 */
 
 	/* Screen Window width in Pixels.
 	 2D engine uses this value to calculate the linear address in frame buffer for a given point.
 	 */
 	write_dpr(accel, DE_WINDOW_WIDTH,
-		  FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION, (dPitch/bytePerPixel)) |
-		  FIELD_VALUE(0, DE_WINDOW_WIDTH, SOURCE,      (dPitch/bytePerPixel)));
+		  ((dPitch / bytePerPixel << DE_WINDOW_WIDTH_DST_SHIFT) &
+		   DE_WINDOW_WIDTH_DST_MASK) |
+		  (dPitch / bytePerPixel & DE_WINDOW_WIDTH_SRC_MASK));
 
 	 /* Note: For 2D Source in Host Write, only X_K1_MONO field is needed, and Y_K2 field is not used.
 	    For mono bitmap, use startBit for X_K1. */
 	write_dpr(accel, DE_SOURCE,
-		  FIELD_SET(0, DE_SOURCE, WRAP, DISABLE)       |
-		  FIELD_VALUE(0, DE_SOURCE, X_K1_MONO, startBit)); /* dpr00 */
+		  (startBit << DE_SOURCE_X_K1_SHIFT) &
+		  DE_SOURCE_X_K1_MONO_MASK); /* dpr00 */
 
 	write_dpr(accel, DE_DESTINATION,
-		  FIELD_SET(0, DE_DESTINATION, WRAP, DISABLE) |
-		  FIELD_VALUE(0, DE_DESTINATION, X,    dx)    |
-		  FIELD_VALUE(0, DE_DESTINATION, Y,    dy)); /* dpr04 */
+		  ((dx << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) |
+		  (dy & DE_DESTINATION_Y_MASK)); /* dpr04 */
 
 	write_dpr(accel, DE_DIMENSION,
-		  FIELD_VALUE(0, DE_DIMENSION, X,    width) |
-		  FIELD_VALUE(0, DE_DIMENSION, Y_ET, height)); /* dpr08 */
+		  ((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
+		  (height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */
 
 	write_dpr(accel, DE_FOREGROUND, fColor);
 	write_dpr(accel, DE_BACKGROUND, bColor);
 
-	de_ctrl = FIELD_VALUE(0, DE_CONTROL, ROP, rop2)         |
-		FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2)    |
-		FIELD_SET(0, DE_CONTROL, COMMAND, HOST_WRITE) |
-		FIELD_SET(0, DE_CONTROL, HOST, MONO)          |
-		FIELD_SET(0, DE_CONTROL, STATUS, START);
+	de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) |
+		DE_CONTROL_ROP_SELECT | DE_CONTROL_COMMAND_HOST_WRITE |
+		DE_CONTROL_HOST | DE_CONTROL_STATUS;
 
 	write_dpr(accel, DE_CONTROL, de_ctrl | deGetTransparency(accel));
 
diff --git a/drivers/staging/sm750fb/sm750_accel.h b/drivers/staging/sm750fb/sm750_accel.h
index 1ec66d2..d59d005 100644
--- a/drivers/staging/sm750fb/sm750_accel.h
+++ b/drivers/staging/sm750fb/sm750_accel.h
@@ -21,212 +21,162 @@
 #define DE_PORT_ADDR_TYPE3 0x100000
 
 #define DE_SOURCE                                       0x0
-#define DE_SOURCE_WRAP                                  31:31
-#define DE_SOURCE_WRAP_DISABLE                          0
-#define DE_SOURCE_WRAP_ENABLE                           1
-#define DE_SOURCE_X_K1                                  29:16
-#define DE_SOURCE_Y_K2                                  15:0
-#define DE_SOURCE_X_K1_MONO				20:16
+#define DE_SOURCE_WRAP                                  BIT(31)
+#define DE_SOURCE_X_K1_SHIFT                            16
+#define DE_SOURCE_X_K1_MASK                             (0x3fff << 16)
+#define DE_SOURCE_X_K1_MONO_MASK			(0x1f << 16)
+#define DE_SOURCE_Y_K2_MASK                             0xffff
 
 #define DE_DESTINATION                                  0x4
-#define DE_DESTINATION_WRAP                             31:31
-#define DE_DESTINATION_WRAP_DISABLE                     0
-#define DE_DESTINATION_WRAP_ENABLE                      1
-#define DE_DESTINATION_X                                28:16
-#define DE_DESTINATION_Y                                15:0
+#define DE_DESTINATION_WRAP                             BIT(31)
+#define DE_DESTINATION_X_SHIFT                          16
+#define DE_DESTINATION_X_MASK                           (0x1fff << 16)
+#define DE_DESTINATION_Y_MASK                           0xffff
 
 #define DE_DIMENSION                                    0x8
-#define DE_DIMENSION_X                                  28:16
-#define DE_DIMENSION_Y_ET                               15:0
+#define DE_DIMENSION_X_SHIFT                            16
+#define DE_DIMENSION_X_MASK                             (0x1fff << 16)
+#define DE_DIMENSION_Y_ET_MASK                          0x1fff
 
 #define DE_CONTROL                                      0xC
-#define DE_CONTROL_STATUS                               31:31
-#define DE_CONTROL_STATUS_STOP                          0
-#define DE_CONTROL_STATUS_START                         1
-#define DE_CONTROL_PATTERN                              30:30
-#define DE_CONTROL_PATTERN_MONO                         0
-#define DE_CONTROL_PATTERN_COLOR                        1
-#define DE_CONTROL_UPDATE_DESTINATION_X                 29:29
-#define DE_CONTROL_UPDATE_DESTINATION_X_DISABLE         0
-#define DE_CONTROL_UPDATE_DESTINATION_X_ENABLE          1
-#define DE_CONTROL_QUICK_START                          28:28
-#define DE_CONTROL_QUICK_START_DISABLE                  0
-#define DE_CONTROL_QUICK_START_ENABLE                   1
-#define DE_CONTROL_DIRECTION                            27:27
-#define DE_CONTROL_DIRECTION_LEFT_TO_RIGHT              0
-#define DE_CONTROL_DIRECTION_RIGHT_TO_LEFT              1
-#define DE_CONTROL_MAJOR                                26:26
-#define DE_CONTROL_MAJOR_X                              0
-#define DE_CONTROL_MAJOR_Y                              1
-#define DE_CONTROL_STEP_X                               25:25
-#define DE_CONTROL_STEP_X_POSITIVE                      1
-#define DE_CONTROL_STEP_X_NEGATIVE                      0
-#define DE_CONTROL_STEP_Y                               24:24
-#define DE_CONTROL_STEP_Y_POSITIVE                      1
-#define DE_CONTROL_STEP_Y_NEGATIVE                      0
-#define DE_CONTROL_STRETCH                              23:23
-#define DE_CONTROL_STRETCH_DISABLE                      0
-#define DE_CONTROL_STRETCH_ENABLE                       1
-#define DE_CONTROL_HOST                                 22:22
-#define DE_CONTROL_HOST_COLOR                           0
-#define DE_CONTROL_HOST_MONO                            1
-#define DE_CONTROL_LAST_PIXEL                           21:21
-#define DE_CONTROL_LAST_PIXEL_OFF                       0
-#define DE_CONTROL_LAST_PIXEL_ON                        1
-#define DE_CONTROL_COMMAND                              20:16
-#define DE_CONTROL_COMMAND_BITBLT                       0
-#define DE_CONTROL_COMMAND_RECTANGLE_FILL               1
-#define DE_CONTROL_COMMAND_DE_TILE                      2
-#define DE_CONTROL_COMMAND_TRAPEZOID_FILL               3
-#define DE_CONTROL_COMMAND_ALPHA_BLEND                  4
-#define DE_CONTROL_COMMAND_RLE_STRIP                    5
-#define DE_CONTROL_COMMAND_SHORT_STROKE                 6
-#define DE_CONTROL_COMMAND_LINE_DRAW                    7
-#define DE_CONTROL_COMMAND_HOST_WRITE                   8
-#define DE_CONTROL_COMMAND_HOST_READ                    9
-#define DE_CONTROL_COMMAND_HOST_WRITE_BOTTOM_UP         10
-#define DE_CONTROL_COMMAND_ROTATE                       11
-#define DE_CONTROL_COMMAND_FONT                         12
-#define DE_CONTROL_COMMAND_TEXTURE_LOAD                 15
-#define DE_CONTROL_ROP_SELECT                           15:15
-#define DE_CONTROL_ROP_SELECT_ROP3                      0
-#define DE_CONTROL_ROP_SELECT_ROP2                      1
-#define DE_CONTROL_ROP2_SOURCE                          14:14
-#define DE_CONTROL_ROP2_SOURCE_BITMAP                   0
-#define DE_CONTROL_ROP2_SOURCE_PATTERN                  1
-#define DE_CONTROL_MONO_DATA                            13:12
-#define DE_CONTROL_MONO_DATA_NOT_PACKED                 0
-#define DE_CONTROL_MONO_DATA_8_PACKED                   1
-#define DE_CONTROL_MONO_DATA_16_PACKED                  2
-#define DE_CONTROL_MONO_DATA_32_PACKED                  3
-#define DE_CONTROL_REPEAT_ROTATE                        11:11
-#define DE_CONTROL_REPEAT_ROTATE_DISABLE                0
-#define DE_CONTROL_REPEAT_ROTATE_ENABLE                 1
-#define DE_CONTROL_TRANSPARENCY_MATCH                   10:10
-#define DE_CONTROL_TRANSPARENCY_MATCH_OPAQUE            0
-#define DE_CONTROL_TRANSPARENCY_MATCH_TRANSPARENT       1
-#define DE_CONTROL_TRANSPARENCY_SELECT                  9:9
-#define DE_CONTROL_TRANSPARENCY_SELECT_SOURCE           0
-#define DE_CONTROL_TRANSPARENCY_SELECT_DESTINATION      1
-#define DE_CONTROL_TRANSPARENCY                         8:8
-#define DE_CONTROL_TRANSPARENCY_DISABLE                 0
-#define DE_CONTROL_TRANSPARENCY_ENABLE                  1
-#define DE_CONTROL_ROP                                  7:0
+#define DE_CONTROL_STATUS                               BIT(31)
+#define DE_CONTROL_PATTERN                              BIT(30)
+#define DE_CONTROL_UPDATE_DESTINATION_X                 BIT(29)
+#define DE_CONTROL_QUICK_START                          BIT(28)
+#define DE_CONTROL_DIRECTION                            BIT(27)
+#define DE_CONTROL_MAJOR                                BIT(26)
+#define DE_CONTROL_STEP_X                               BIT(25)
+#define DE_CONTROL_STEP_Y                               BIT(24)
+#define DE_CONTROL_STRETCH                              BIT(23)
+#define DE_CONTROL_HOST                                 BIT(22)
+#define DE_CONTROL_LAST_PIXEL                           BIT(21)
+#define DE_CONTROL_COMMAND_SHIFT                        16
+#define DE_CONTROL_COMMAND_MASK                         (0x1f << 16)
+#define DE_CONTROL_COMMAND_BITBLT                       (0x0 << 16)
+#define DE_CONTROL_COMMAND_RECTANGLE_FILL               (0x1 << 16)
+#define DE_CONTROL_COMMAND_DE_TILE                      (0x2 << 16)
+#define DE_CONTROL_COMMAND_TRAPEZOID_FILL               (0x3 << 16)
+#define DE_CONTROL_COMMAND_ALPHA_BLEND                  (0x4 << 16)
+#define DE_CONTROL_COMMAND_RLE_STRIP                    (0x5 << 16)
+#define DE_CONTROL_COMMAND_SHORT_STROKE                 (0x6 << 16)
+#define DE_CONTROL_COMMAND_LINE_DRAW                    (0x7 << 16)
+#define DE_CONTROL_COMMAND_HOST_WRITE                   (0x8 << 16)
+#define DE_CONTROL_COMMAND_HOST_READ                    (0x9 << 16)
+#define DE_CONTROL_COMMAND_HOST_WRITE_BOTTOM_UP         (0xa << 16)
+#define DE_CONTROL_COMMAND_ROTATE                       (0xb << 16)
+#define DE_CONTROL_COMMAND_FONT                         (0xc << 16)
+#define DE_CONTROL_COMMAND_TEXTURE_LOAD                 (0xe << 16)
+#define DE_CONTROL_ROP_SELECT                           BIT(15)
+#define DE_CONTROL_ROP2_SOURCE                          BIT(14)
+#define DE_CONTROL_MONO_DATA_SHIFT                      12
+#define DE_CONTROL_MONO_DATA_MASK                       (0x3 << 12)
+#define DE_CONTROL_MONO_DATA_NOT_PACKED                 (0x0 << 12)
+#define DE_CONTROL_MONO_DATA_8_PACKED                   (0x1 << 12)
+#define DE_CONTROL_MONO_DATA_16_PACKED                  (0x2 << 12)
+#define DE_CONTROL_MONO_DATA_32_PACKED                  (0x3 << 12)
+#define DE_CONTROL_REPEAT_ROTATE                        BIT(11)
+#define DE_CONTROL_TRANSPARENCY_MATCH                   BIT(10)
+#define DE_CONTROL_TRANSPARENCY_SELECT                  BIT(9)
+#define DE_CONTROL_TRANSPARENCY                         BIT(8)
+#define DE_CONTROL_ROP_MASK                             0xff
 
 /* Pseudo fields. */
 
-#define DE_CONTROL_SHORT_STROKE_DIR                     27:24
-#define DE_CONTROL_SHORT_STROKE_DIR_225                 0
-#define DE_CONTROL_SHORT_STROKE_DIR_135                 1
-#define DE_CONTROL_SHORT_STROKE_DIR_315                 2
-#define DE_CONTROL_SHORT_STROKE_DIR_45                  3
-#define DE_CONTROL_SHORT_STROKE_DIR_270                 4
-#define DE_CONTROL_SHORT_STROKE_DIR_90                  5
-#define DE_CONTROL_SHORT_STROKE_DIR_180                 8
-#define DE_CONTROL_SHORT_STROKE_DIR_0                   10
-#define DE_CONTROL_ROTATION                             25:24
-#define DE_CONTROL_ROTATION_0                           0
-#define DE_CONTROL_ROTATION_270                         1
-#define DE_CONTROL_ROTATION_90                          2
-#define DE_CONTROL_ROTATION_180                         3
+#define DE_CONTROL_SHORT_STROKE_DIR_MASK                (0xf << 24)
+#define DE_CONTROL_SHORT_STROKE_DIR_225                 (0x0 << 24)
+#define DE_CONTROL_SHORT_STROKE_DIR_135                 (0x1 << 24)
+#define DE_CONTROL_SHORT_STROKE_DIR_315                 (0x2 << 24)
+#define DE_CONTROL_SHORT_STROKE_DIR_45                  (0x3 << 24)
+#define DE_CONTROL_SHORT_STROKE_DIR_270                 (0x4 << 24)
+#define DE_CONTROL_SHORT_STROKE_DIR_90                  (0x5 << 24)
+#define DE_CONTROL_SHORT_STROKE_DIR_180                 (0x8 << 24)
+#define DE_CONTROL_SHORT_STROKE_DIR_0                   (0xa << 24)
+#define DE_CONTROL_ROTATION_MASK                        (0x3 << 24)
+#define DE_CONTROL_ROTATION_0                           (0x0 << 24)
+#define DE_CONTROL_ROTATION_270                         (0x1 << 24)
+#define DE_CONTROL_ROTATION_90                          (0x2 << 24)
+#define DE_CONTROL_ROTATION_180                         (0x3 << 24)
 
 #define DE_PITCH                                        0x000010
-#define DE_PITCH_DESTINATION                            28:16
-#define DE_PITCH_SOURCE                                 12:0
+#define DE_PITCH_DESTINATION_SHIFT                      16
+#define DE_PITCH_DESTINATION_MASK                       (0x1fff << 16)
+#define DE_PITCH_SOURCE_MASK                            0x1fff
 
 #define DE_FOREGROUND                                   0x000014
-#define DE_FOREGROUND_COLOR                             31:0
+#define DE_FOREGROUND_COLOR_MASK                        0xffffffff
 
 #define DE_BACKGROUND                                   0x000018
-#define DE_BACKGROUND_COLOR                             31:0
+#define DE_BACKGROUND_COLOR_MASK                        0xffffffff
 
 #define DE_STRETCH_FORMAT                               0x00001C
-#define DE_STRETCH_FORMAT_PATTERN_XY                    30:30
-#define DE_STRETCH_FORMAT_PATTERN_XY_NORMAL             0
-#define DE_STRETCH_FORMAT_PATTERN_XY_OVERWRITE          1
-#define DE_STRETCH_FORMAT_PATTERN_Y                     29:27
-#define DE_STRETCH_FORMAT_PATTERN_X                     25:23
-#define DE_STRETCH_FORMAT_PIXEL_FORMAT                  21:20
-#define DE_STRETCH_FORMAT_PIXEL_FORMAT_8                0
-#define DE_STRETCH_FORMAT_PIXEL_FORMAT_16               1
-#define DE_STRETCH_FORMAT_PIXEL_FORMAT_32               2
-#define DE_STRETCH_FORMAT_PIXEL_FORMAT_24               3
-
-#define DE_STRETCH_FORMAT_ADDRESSING                    19:16
-#define DE_STRETCH_FORMAT_ADDRESSING_XY                 0
-#define DE_STRETCH_FORMAT_ADDRESSING_LINEAR             15
-#define DE_STRETCH_FORMAT_SOURCE_HEIGHT                 11:0
+#define DE_STRETCH_FORMAT_PATTERN_XY                    BIT(30)
+#define DE_STRETCH_FORMAT_PATTERN_Y_SHIFT               27
+#define DE_STRETCH_FORMAT_PATTERN_Y_MASK                (0x7 << 27)
+#define DE_STRETCH_FORMAT_PATTERN_X_SHIFT               23
+#define DE_STRETCH_FORMAT_PATTERN_X_MASK                (0x7 << 23)
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_SHIFT            20
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_MASK             (0x3 << 20)
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_8                (0x0 << 20)
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_16               (0x1 << 20)
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_32               (0x2 << 20)
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_24               (0x3 << 20)
+#define DE_STRETCH_FORMAT_ADDRESSING_SHIFT              16
+#define DE_STRETCH_FORMAT_ADDRESSING_MASK               (0xf << 16)
+#define DE_STRETCH_FORMAT_ADDRESSING_XY                 (0x0 << 16)
+#define DE_STRETCH_FORMAT_ADDRESSING_LINEAR             (0xf << 16)
+#define DE_STRETCH_FORMAT_SOURCE_HEIGHT_MASK            0xfff
 
 #define DE_COLOR_COMPARE                                0x000020
-#define DE_COLOR_COMPARE_COLOR                          23:0
+#define DE_COLOR_COMPARE_COLOR_MASK                     0xffffff
 
 #define DE_COLOR_COMPARE_MASK                           0x000024
-#define DE_COLOR_COMPARE_MASK_MASKS                     23:0
+#define DE_COLOR_COMPARE_MASK_MASK                      0xffffff
 
 #define DE_MASKS                                        0x000028
-#define DE_MASKS_BYTE_MASK                              31:16
-#define DE_MASKS_BIT_MASK                               15:0
+#define DE_MASKS_BYTE_MASK                              (0xffff << 16)
+#define DE_MASKS_BIT_MASK                               0xffff
 
 #define DE_CLIP_TL                                      0x00002C
-#define DE_CLIP_TL_TOP                                  31:16
-#define DE_CLIP_TL_STATUS                               13:13
-#define DE_CLIP_TL_STATUS_DISABLE                       0
-#define DE_CLIP_TL_STATUS_ENABLE                        1
-#define DE_CLIP_TL_INHIBIT                              12:12
-#define DE_CLIP_TL_INHIBIT_OUTSIDE                      0
-#define DE_CLIP_TL_INHIBIT_INSIDE                       1
-#define DE_CLIP_TL_LEFT                                 11:0
+#define DE_CLIP_TL_TOP_MASK                             (0xffff << 16)
+#define DE_CLIP_TL_STATUS                               BIT(13)
+#define DE_CLIP_TL_INHIBIT                              BIT(12)
+#define DE_CLIP_TL_LEFT_MASK                            0xfff
 
 #define DE_CLIP_BR                                      0x000030
-#define DE_CLIP_BR_BOTTOM                               31:16
-#define DE_CLIP_BR_RIGHT                                12:0
+#define DE_CLIP_BR_BOTTOM_MASK                          (0xffff << 16)
+#define DE_CLIP_BR_RIGHT_MASK                           0x1fff
 
 #define DE_MONO_PATTERN_LOW                             0x000034
-#define DE_MONO_PATTERN_LOW_PATTERN                     31:0
+#define DE_MONO_PATTERN_LOW_PATTERN_MASK                0xffffffff
 
 #define DE_MONO_PATTERN_HIGH                            0x000038
-#define DE_MONO_PATTERN_HIGH_PATTERN                    31:0
+#define DE_MONO_PATTERN_HIGH_PATTERN_MASK               0xffffffff
 
 #define DE_WINDOW_WIDTH                                 0x00003C
-#define DE_WINDOW_WIDTH_DESTINATION                     28:16
-#define DE_WINDOW_WIDTH_SOURCE                          12:0
+#define DE_WINDOW_WIDTH_DST_SHIFT                       16
+#define DE_WINDOW_WIDTH_DST_MASK                        (0x1fff << 16)
+#define DE_WINDOW_WIDTH_SRC_MASK                        0x1fff
 
 #define DE_WINDOW_SOURCE_BASE                           0x000040
-#define DE_WINDOW_SOURCE_BASE_EXT                       27:27
-#define DE_WINDOW_SOURCE_BASE_EXT_LOCAL                 0
-#define DE_WINDOW_SOURCE_BASE_EXT_EXTERNAL              1
-#define DE_WINDOW_SOURCE_BASE_CS                        26:26
-#define DE_WINDOW_SOURCE_BASE_CS_0                      0
-#define DE_WINDOW_SOURCE_BASE_CS_1                      1
-#define DE_WINDOW_SOURCE_BASE_ADDRESS                   25:0
+#define DE_WINDOW_SOURCE_BASE_EXT                       BIT(27)
+#define DE_WINDOW_SOURCE_BASE_CS                        BIT(26)
+#define DE_WINDOW_SOURCE_BASE_ADDRESS_MASK              0x3ffffff
 
 #define DE_WINDOW_DESTINATION_BASE                      0x000044
-#define DE_WINDOW_DESTINATION_BASE_EXT                  27:27
-#define DE_WINDOW_DESTINATION_BASE_EXT_LOCAL            0
-#define DE_WINDOW_DESTINATION_BASE_EXT_EXTERNAL         1
-#define DE_WINDOW_DESTINATION_BASE_CS                   26:26
-#define DE_WINDOW_DESTINATION_BASE_CS_0                 0
-#define DE_WINDOW_DESTINATION_BASE_CS_1                 1
-#define DE_WINDOW_DESTINATION_BASE_ADDRESS              25:0
+#define DE_WINDOW_DESTINATION_BASE_EXT                  BIT(27)
+#define DE_WINDOW_DESTINATION_BASE_CS                   BIT(26)
+#define DE_WINDOW_DESTINATION_BASE_ADDRESS_MASK         0x3ffffff
 
 #define DE_ALPHA                                        0x000048
-#define DE_ALPHA_VALUE                                  7:0
+#define DE_ALPHA_VALUE_MASK                             0xff
 
 #define DE_WRAP                                         0x00004C
-#define DE_WRAP_X                                       31:16
-#define DE_WRAP_Y                                       15:0
+#define DE_WRAP_X_MASK                                  (0xffff << 16)
+#define DE_WRAP_Y_MASK                                  0xffff
 
 #define DE_STATUS                                       0x000050
-#define DE_STATUS_CSC                                   1:1
-#define DE_STATUS_CSC_CLEAR                             0
-#define DE_STATUS_CSC_NOT_ACTIVE                        0
-#define DE_STATUS_CSC_ACTIVE                            1
-#define DE_STATUS_2D                                    0:0
-#define DE_STATUS_2D_CLEAR                              0
-#define DE_STATUS_2D_NOT_ACTIVE                         0
-#define DE_STATUS_2D_ACTIVE                             1
-
-
+#define DE_STATUS_CSC                                   BIT(1)
+#define DE_STATUS_2D                                    BIT(0)
 
 /* blt direction */
 #define TOP_TO_BOTTOM 0
diff --git a/drivers/staging/sm750fb/sm750_cursor.c b/drivers/staging/sm750fb/sm750_cursor.c
index e887101..2d348c6 100644
--- a/drivers/staging/sm750fb/sm750_cursor.c
+++ b/drivers/staging/sm750fb/sm750_cursor.c
@@ -16,7 +16,6 @@
 #include <linux/screen_info.h>
 
 #include "sm750.h"
-#include "sm750_help.h"
 #include "sm750_cursor.h"
 
 
@@ -28,33 +27,25 @@ writel((data), cursor->mmio + (addr))
 
 /* cursor control for voyager and 718/750*/
 #define HWC_ADDRESS                         0x0
-#define HWC_ADDRESS_ENABLE                  31:31
-#define HWC_ADDRESS_ENABLE_DISABLE          0
-#define HWC_ADDRESS_ENABLE_ENABLE           1
-#define HWC_ADDRESS_EXT                     27:27
-#define HWC_ADDRESS_EXT_LOCAL               0
-#define HWC_ADDRESS_EXT_EXTERNAL            1
-#define HWC_ADDRESS_CS                      26:26
-#define HWC_ADDRESS_CS_0                    0
-#define HWC_ADDRESS_CS_1                    1
-#define HWC_ADDRESS_ADDRESS                 25:0
+#define HWC_ADDRESS_ENABLE                  BIT(31)
+#define HWC_ADDRESS_EXT                     BIT(27)
+#define HWC_ADDRESS_CS                      BIT(26)
+#define HWC_ADDRESS_ADDRESS_MASK            0x3ffffff
 
 #define HWC_LOCATION                        0x4
-#define HWC_LOCATION_TOP                    27:27
-#define HWC_LOCATION_TOP_INSIDE             0
-#define HWC_LOCATION_TOP_OUTSIDE            1
-#define HWC_LOCATION_Y                      26:16
-#define HWC_LOCATION_LEFT                   11:11
-#define HWC_LOCATION_LEFT_INSIDE            0
-#define HWC_LOCATION_LEFT_OUTSIDE           1
-#define HWC_LOCATION_X                      10:0
+#define HWC_LOCATION_TOP                    BIT(27)
+#define HWC_LOCATION_Y_SHIFT                16
+#define HWC_LOCATION_Y_MASK                 (0x7ff << 16)
+#define HWC_LOCATION_LEFT                   BIT(11)
+#define HWC_LOCATION_X_MASK                 0x7ff
 
 #define HWC_COLOR_12                        0x8
-#define HWC_COLOR_12_2_RGB565               31:16
-#define HWC_COLOR_12_1_RGB565               15:0
+#define HWC_COLOR_12_2_RGB565_SHIFT         16
+#define HWC_COLOR_12_2_RGB565_MASK          (0xffff << 16)
+#define HWC_COLOR_12_1_RGB565_MASK          0xffff
 
 #define HWC_COLOR_3                         0xC
-#define HWC_COLOR_3_RGB565                  15:0
+#define HWC_COLOR_3_RGB565_MASK             0xffff
 
 
 /* hw_cursor_xxx works for voyager,718 and 750 */
@@ -62,9 +53,7 @@ void hw_cursor_enable(struct lynx_cursor *cursor)
 {
 	u32 reg;
 
-	reg = FIELD_VALUE(0, HWC_ADDRESS, ADDRESS, cursor->offset)|
-			FIELD_SET(0, HWC_ADDRESS, EXT, LOCAL)|
-			FIELD_SET(0, HWC_ADDRESS, ENABLE, ENABLE);
+	reg = (cursor->offset & HWC_ADDRESS_ADDRESS_MASK) | HWC_ADDRESS_ENABLE;
 	POKE32(HWC_ADDRESS, reg);
 }
 void hw_cursor_disable(struct lynx_cursor *cursor)
@@ -83,14 +72,17 @@ void hw_cursor_setPos(struct lynx_cursor *cursor,
 {
 	u32 reg;
 
-	reg = FIELD_VALUE(0, HWC_LOCATION, Y, y)|
-			FIELD_VALUE(0, HWC_LOCATION, X, x);
+	reg = (((y << HWC_LOCATION_Y_SHIFT) & HWC_LOCATION_Y_MASK) |
+		(x & HWC_LOCATION_X_MASK));
 	POKE32(HWC_LOCATION, reg);
 }
 void hw_cursor_setColor(struct lynx_cursor *cursor,
 						u32 fg, u32 bg)
 {
-	POKE32(HWC_COLOR_12, (fg<<16)|(bg&0xffff));
+	u32 reg = (fg << HWC_COLOR_12_2_RGB565_SHIFT) &
+		HWC_COLOR_12_2_RGB565_MASK;
+
+	POKE32(HWC_COLOR_12, reg | (bg & HWC_COLOR_12_1_RGB565_MASK));
 	POKE32(HWC_COLOR_3, 0xffe0);
 }
 
diff --git a/drivers/staging/sm750fb/sm750_help.h b/drivers/staging/sm750fb/sm750_help.h
deleted file mode 100644
index c070cf2..0000000
--- a/drivers/staging/sm750fb/sm750_help.h
+++ /dev/null
@@ -1,56 +0,0 @@
-#ifndef LYNX_HELP_H__
-#define LYNX_HELP_H__
-
-/* Internal macros */
-#define _F_START(f)             (0 ? f)
-#define _F_END(f)               (1 ? f)
-#define _F_SIZE(f)              (1 + _F_END(f) - _F_START(f))
-#define _F_MASK(f)              (((1 << _F_SIZE(f)) - 1) << _F_START(f))
-#define _F_NORMALIZE(v, f)      (((v) & _F_MASK(f)) >> _F_START(f))
-#define _F_DENORMALIZE(v, f)    (((v) << _F_START(f)) & _F_MASK(f))
-
-/* Global macros */
-#define FIELD_GET(x, reg, field) \
-( \
-	_F_NORMALIZE((x), reg ## _ ## field) \
-)
-
-#define FIELD_SET(x, reg, field, value) \
-( \
-	(x & ~_F_MASK(reg ## _ ## field)) \
-	| _F_DENORMALIZE(reg ## _ ## field ## _ ## value, reg ## _ ## field) \
-)
-
-#define FIELD_VALUE(x, reg, field, value) \
-( \
-	(x & ~_F_MASK(reg ## _ ## field)) \
-	| _F_DENORMALIZE(value, reg ## _ ## field) \
-)
-
-#define FIELD_CLEAR(reg, field) \
-( \
-	~_F_MASK(reg ## _ ## field) \
-)
-
-/* Field Macros */
-#define FIELD_START(field)              (0 ? field)
-#define FIELD_END(field)                (1 ? field)
-#define FIELD_SIZE(field)               (1 + FIELD_END(field) - FIELD_START(field))
-#define FIELD_MASK(field)               (((1 << (FIELD_SIZE(field)-1)) | ((1 << (FIELD_SIZE(field)-1)) - 1)) << FIELD_START(field))
-
-static inline unsigned int absDiff(unsigned int a, unsigned int b)
-{
-	if (a < b)
-		return b-a;
-	else
-		return a-b;
-}
-
-/* n / d + 1 / 2 = (2n + d) / 2d */
-#define roundedDiv(num, denom)	((2 * (num) + (denom)) / (2 * (denom)))
-#define MHz(x) ((x) * 1000000)
-
-
-
-
-#endif
diff --git a/drivers/staging/sm750fb/sm750_hw.c b/drivers/staging/sm750fb/sm750_hw.c
index 01850bf..2daeedd 100644
--- a/drivers/staging/sm750fb/sm750_hw.c
+++ b/drivers/staging/sm750fb/sm750_hw.c
@@ -1,4 +1,3 @@
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
@@ -343,11 +342,10 @@ int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc,
 		POKE32(CRT_FB_ADDRESS, crtc->oScreen);
 		reg = var->xres * (var->bits_per_pixel >> 3);
 		/* crtc->channel is not equal to par->index on numeric,be aware of that */
-		reg = ALIGN(reg, crtc->line_pad);
-
-		POKE32(CRT_FB_WIDTH,
-			FIELD_VALUE(0, CRT_FB_WIDTH, WIDTH, reg)|
-			FIELD_VALUE(0, CRT_FB_WIDTH, OFFSET, fix->line_length));
+		reg = ALIGN(reg, crtc->line_pad) << CRT_FB_WIDTH_WIDTH_SHIFT;
+		reg &= CRT_FB_WIDTH_WIDTH_MASK;
+		reg |= (fix->line_length & CRT_FB_WIDTH_OFFSET_MASK);
+		POKE32(CRT_FB_WIDTH, reg);
 
 		/* SET PIXEL FORMAT */
 		reg = PEEK32(CRT_DISPLAY_CTRL);
@@ -550,8 +548,8 @@ int hw_sm750_pan_display(struct lynxfb_crtc *crtc,
 		       (total & PANEL_FB_ADDRESS_ADDRESS_MASK));
 	} else {
 		POKE32(CRT_FB_ADDRESS,
-			FIELD_VALUE(PEEK32(CRT_FB_ADDRESS),
-				CRT_FB_ADDRESS, ADDRESS, total));
+		       PEEK32(CRT_FB_ADDRESS) |
+		       (total & CRT_FB_ADDRESS_ADDRESS_MASK));
 	}
 	return 0;
 }
diff --git a/drivers/staging/unisys/include/iochannel.h b/drivers/staging/unisys/include/iochannel.h
index 162ca18..880d9f0 100644
--- a/drivers/staging/unisys/include/iochannel.h
+++ b/drivers/staging/unisys/include/iochannel.h
@@ -575,7 +575,7 @@ struct spar_io_channel_protocol {
  * room)
  */
 static inline  u16
-add_physinfo_entries(u32 inp_pfn, u16 inp_off, u32 inp_len, u16 index,
+add_physinfo_entries(u64 inp_pfn, u16 inp_off, u32 inp_len, u16 index,
 		     u16 max_pi_arr_entries, struct phys_info pi_arr[])
 {
 	u32 len;
@@ -589,21 +589,19 @@ add_physinfo_entries(u32 inp_pfn, u16 inp_off, u32 inp_len, u16 index,
 		pi_arr[index].pi_pfn = inp_pfn;
 		pi_arr[index].pi_off = (u16)inp_off;
 		pi_arr[index].pi_len = (u16)inp_len;
-		    return index + 1;
+		return index + 1;
 	}
 
-	    /* this entry spans multiple pages */
-	    for (len = inp_len, i = 0; len;
-		 len -= pi_arr[index + i].pi_len, i++) {
+	/* this entry spans multiple pages */
+	for (len = inp_len, i = 0; len;
+		len -= pi_arr[index + i].pi_len, i++) {
 		if (index + i >= max_pi_arr_entries)
 			return 0;
 		pi_arr[index + i].pi_pfn = inp_pfn + i;
 		if (i == 0) {
 			pi_arr[index].pi_off = inp_off;
 			pi_arr[index].pi_len = firstlen;
-		}
-
-		else {
+		} else {
 			pi_arr[index + i].pi_off = 0;
 			pi_arr[index + i].pi_len =
 			    (u16)MINNUM(len, (u32)PI_PAGE_SIZE);
diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c
index a301385..533bb5b 100644
--- a/drivers/staging/unisys/visorbus/visorbus_main.c
+++ b/drivers/staging/unisys/visorbus/visorbus_main.c
@@ -221,7 +221,6 @@ visorbus_release_busdevice(struct device *xdev)
 {
 	struct visor_device *dev = dev_get_drvdata(xdev);
 
-	dev_set_drvdata(xdev, NULL);
 	kfree(dev);
 }
 
@@ -701,12 +700,10 @@ DRIVER_ATTR_version(struct device_driver *xdrv, char *buf)
 static int
 register_driver_attributes(struct visor_driver *drv)
 {
-	int rc;
 	struct driver_attribute version =
 	    __ATTR(version, S_IRUGO, DRIVER_ATTR_version, NULL);
 	drv->version_attr = version;
-	rc = driver_create_file(&drv->driver, &drv->version_attr);
-	return rc;
+	return driver_create_file(&drv->driver, &drv->version_attr);
 }
 
 static void
@@ -771,7 +768,7 @@ visordriver_probe_device(struct device *xdev)
 	get_device(&dev->device);
 	if (!drv->probe) {
 		up(&dev->visordriver_callback_lock);
-		rc = -1;
+		rc = -ENODEV;
 		goto away;
 	}
 	rc = drv->probe(dev);
@@ -973,7 +970,7 @@ EXPORT_SYMBOL_GPL(visorbus_disable_channel_interrupts);
 static int
 create_visor_device(struct visor_device *dev)
 {
-	int rc = -1;
+	int rc;
 	u32 chipset_bus_no = dev->chipset_bus_no;
 	u32 chipset_dev_no = dev->chipset_dev_no;
 
@@ -995,6 +992,7 @@ create_visor_device(struct visor_device *dev)
 	if (!dev->periodic_work) {
 		POSTCODE_LINUX_3(DEVICE_CREATE_FAILURE_PC, chipset_dev_no,
 				 DIAG_SEVERITY_ERR);
+		rc = -EINVAL;
 		goto away;
 	}
 
@@ -1032,14 +1030,15 @@ create_visor_device(struct visor_device *dev)
 	if (rc < 0) {
 		POSTCODE_LINUX_3(DEVICE_REGISTER_FAILURE_PC, chipset_dev_no,
 				 DIAG_SEVERITY_ERR);
-		goto away_register;
+		goto away_unregister;
 	}
 
 	list_add_tail(&dev->list_all, &list_all_device_instances);
 	return 0;
 
-away_register:
+away_unregister:
 	device_unregister(&dev->device);
+
 away:
 	put_device(&dev->device);
 	return rc;
@@ -1058,23 +1057,21 @@ static int
 get_vbus_header_info(struct visorchannel *chan,
 		     struct spar_vbus_headerinfo *hdr_info)
 {
-	int rc = -1;
-
 	if (!SPAR_VBUS_CHANNEL_OK_CLIENT(visorchannel_get_header(chan)))
-		goto away;
+		return -EINVAL;
+
 	if (visorchannel_read(chan, sizeof(struct channel_header), hdr_info,
 			      sizeof(*hdr_info)) < 0) {
-		goto away;
+		return -EIO;
 	}
 	if (hdr_info->struct_bytes < sizeof(struct spar_vbus_headerinfo))
-		goto away;
+		return -EINVAL;
+
 	if (hdr_info->device_info_struct_bytes <
 	    sizeof(struct ultra_vbus_deviceinfo)) {
-		goto away;
+		return -EINVAL;
 	}
-	rc = 0;
-away:
-	return rc;
+	return 0;
 }
 
 /* Write the contents of <info> to the struct
@@ -1197,17 +1194,14 @@ fix_vbus_dev_info(struct visor_device *visordev)
 static int
 create_bus_instance(struct visor_device *dev)
 {
-	int rc;
 	int id = dev->chipset_bus_no;
 	struct spar_vbus_headerinfo *hdr_info;
 
 	POSTCODE_LINUX_2(BUS_CREATE_ENTRY_PC, POSTCODE_SEVERITY_INFO);
 
 	hdr_info = kzalloc(sizeof(*hdr_info), GFP_KERNEL);
-	if (!hdr_info) {
-		rc = -1;
-		goto away;
-	}
+	if (!hdr_info)
+		return -ENOMEM;
 
 	dev_set_name(&dev->device, "visorbus%d", id);
 	dev->device.bus = &visorbus_type;
@@ -1217,8 +1211,8 @@ create_bus_instance(struct visor_device *dev)
 	if (device_register(&dev->device) < 0) {
 		POSTCODE_LINUX_3(DEVICE_CREATE_FAILURE_PC, id,
 				 POSTCODE_SEVERITY_ERR);
-		rc = -1;
-		goto away_mem;
+		kfree(hdr_info);
+		return -ENODEV;
 	}
 
 	if (get_vbus_header_info(dev->visorchannel, hdr_info) >= 0) {
@@ -1234,11 +1228,6 @@ create_bus_instance(struct visor_device *dev)
 	list_add_tail(&dev->list_all, &list_all_bus_instances);
 	dev_set_drvdata(&dev->device, dev);
 	return 0;
-
-away_mem:
-	kfree(hdr_info);
-away:
-	return rc;
 }
 
 /** Remove a device instance for the visor bus itself.
@@ -1328,7 +1317,7 @@ chipset_bus_destroy(struct visor_device *dev)
 static void
 chipset_device_create(struct visor_device *dev_info)
 {
-	int rc = -1;
+	int rc;
 	u32 bus_no = dev_info->chipset_bus_no;
 	u32 dev_no = dev_info->chipset_dev_no;
 
@@ -1405,7 +1394,7 @@ resume_state_change_complete(struct visor_device *dev, int status)
 static void
 initiate_chipset_device_pause_resume(struct visor_device *dev, bool is_pause)
 {
-	int rc = -1, x;
+	int rc;
 	struct visor_driver *drv = NULL;
 	void (*notify_func)(struct visor_device *dev, int response) = NULL;
 
@@ -1414,14 +1403,18 @@ initiate_chipset_device_pause_resume(struct visor_device *dev, bool is_pause)
 	else
 		notify_func = chipset_responders.device_resume;
 	if (!notify_func)
-		goto away;
+		return;
 
 	drv = to_visor_driver(dev->device.driver);
-	if (!drv)
-		goto away;
+	if (!drv) {
+		(*notify_func)(dev, -ENODEV);
+		return;
+	}
 
-	if (dev->pausing || dev->resuming)
-		goto away;
+	if (dev->pausing || dev->resuming) {
+		(*notify_func)(dev, -EBUSY);
+		return;
+	}
 
 	/* Note that even though both drv->pause() and drv->resume
 	 * specify a callback function, it is NOT necessary for us to
@@ -1431,11 +1424,13 @@ initiate_chipset_device_pause_resume(struct visor_device *dev, bool is_pause)
 	 * visorbus while child function drivers are still running.
 	 */
 	if (is_pause) {
-		if (!drv->pause)
-			goto away;
+		if (!drv->pause) {
+			(*notify_func)(dev, -EINVAL);
+			return;
+		}
 
 		dev->pausing = true;
-		x = drv->pause(dev, pause_state_change_complete);
+		rc = drv->pause(dev, pause_state_change_complete);
 	} else {
 		/* This should be done at BUS resume time, but an
 		 * existing problem prevents us from ever getting a bus
@@ -1444,24 +1439,20 @@ initiate_chipset_device_pause_resume(struct visor_device *dev, bool is_pause)
 		 * would never even get here in that case.
 		 */
 		fix_vbus_dev_info(dev);
-		if (!drv->resume)
-			goto away;
+		if (!drv->resume) {
+			(*notify_func)(dev, -EINVAL);
+			return;
+		}
 
 		dev->resuming = true;
-		x = drv->resume(dev, resume_state_change_complete);
+		rc = drv->resume(dev, resume_state_change_complete);
 	}
-	if (x < 0) {
+	if (rc < 0) {
 		if (is_pause)
 			dev->pausing = false;
 		else
 			dev->resuming = false;
-		goto away;
-	}
-	rc = 0;
-away:
-	if (rc < 0) {
-		if (notify_func)
-			(*notify_func)(dev, rc);
+		(*notify_func)(dev, -EINVAL);
 	}
 }
 
diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c
index a79aa2d..b75b063 100644
--- a/drivers/staging/unisys/visorbus/visorchipset.c
+++ b/drivers/staging/unisys/visorbus/visorchipset.c
@@ -2316,7 +2316,7 @@ visorchipset_init(struct acpi_device *acpi_device)
 	visorchipset_platform_device.dev.devt = major_dev;
 	if (platform_device_register(&visorchipset_platform_device) < 0) {
 		POSTCODE_LINUX_2(DEVICE_REGISTER_FAILURE_PC, DIAG_SEVERITY_ERR);
-		rc = -1;
+		rc = -ENODEV;
 		goto cleanup;
 	}
 	POSTCODE_LINUX_2(CHIPSET_INIT_SUCCESS_PC, POSTCODE_SEVERITY_INFO);
diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c
index f27eb9a..f546553 100644
--- a/drivers/staging/vt6656/usbpipe.c
+++ b/drivers/staging/vt6656/usbpipe.c
@@ -116,7 +116,7 @@ static void vnt_start_interrupt_urb_complete(struct urb *urb)
 		break;
 	}
 
-	if (status != STATUS_SUCCESS) {
+	if (status) {
 		priv->int_buf.in_use = false;
 
 		dev_dbg(&priv->usb->dev, "%s status = %d\n", __func__, status);
@@ -221,7 +221,7 @@ int vnt_submit_rx_urb(struct vnt_private *priv, struct vnt_rcb *rcb)
 			  rcb);
 
 	status = usb_submit_urb(urb, GFP_ATOMIC);
-	if (status != 0) {
+	if (status) {
 		dev_dbg(&priv->usb->dev, "Submit Rx URB failed %d\n", status);
 		return STATUS_FAILURE;
 	}
@@ -282,7 +282,7 @@ int vnt_tx_context(struct vnt_private *priv,
 			  context);
 
 	status = usb_submit_urb(urb, GFP_ATOMIC);
-	if (status != 0) {
+	if (status) {
 		dev_dbg(&priv->usb->dev, "Submit Tx URB failed %d\n", status);
 
 		context->in_use = false;
diff --git a/drivers/staging/wilc1000/coreconfigurator.c b/drivers/staging/wilc1000/coreconfigurator.c
index 3a76586..25dc108 100644
--- a/drivers/staging/wilc1000/coreconfigurator.c
+++ b/drivers/staging/wilc1000/coreconfigurator.c
@@ -284,10 +284,8 @@ s32 wilc_parse_network_info(u8 *msg_buffer,
 
 	msg_type = msg_buffer[0];
 
-	if ('N' != msg_type) {
-		PRINT_ER("Received Message format incorrect.\n");
+	if ('N' != msg_type)
 		return -EFAULT;
-	}
 
 	msg_id = msg_buffer[1];
 	msg_len = MAKE_WORD16(msg_buffer[2], msg_buffer[3]);
diff --git a/drivers/staging/wilc1000/coreconfigurator.h b/drivers/staging/wilc1000/coreconfigurator.h
index 748199d..63eca24 100644
--- a/drivers/staging/wilc1000/coreconfigurator.h
+++ b/drivers/staging/wilc1000/coreconfigurator.h
@@ -105,20 +105,20 @@ struct connect_resp_info {
 	u16 ies_len;
 };
 
-typedef struct {
-	u8 au8bssid[6];
-	u8 *pu8ReqIEs;
-	size_t ReqIEsLen;
-	u8 *pu8RespIEs;
-	u16 u16RespIEsLen;
-	u16 u16ConnectStatus;
-} tstrConnectInfo;
+struct connect_info {
+	u8 bssid[6];
+	u8 *req_ies;
+	size_t req_ies_len;
+	u8 *resp_ies;
+	u16 resp_ies_len;
+	u16 status;
+};
 
-typedef struct {
-	u16 u16reason;
+struct disconnect_info {
+	u16 reason;
 	u8 *ie;
 	size_t ie_len;
-} tstrDisconnectNotifInfo;
+};
 
 s32 wilc_parse_network_info(u8 *msg_buffer,
 			    struct network_info **ret_network_info);
diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c
index d1eedfb..b2fdc93 100644
--- a/drivers/staging/wilc1000/host_interface.c
+++ b/drivers/staging/wilc1000/host_interface.c
@@ -46,7 +46,6 @@
 #define HOST_IF_MSG_DEL_BA_SESSION              34
 #define HOST_IF_MSG_Q_IDLE                      35
 #define HOST_IF_MSG_DEL_ALL_STA                 36
-#define HOST_IF_MSG_DEL_ALL_RX_BA_SESSIONS      37
 #define HOST_IF_MSG_SET_TX_POWER		38
 #define HOST_IF_MSG_GET_TX_POWER		39
 #define HOST_IF_MSG_EXIT                        100
@@ -62,10 +61,6 @@
 #define TCP_ACK_FILTER_LINK_SPEED_THRESH	54
 #define DEFAULT_LINK_SPEED			72
 
-struct cfg_param_attr {
-	struct cfg_param_val cfg_attr_info;
-};
-
 struct host_if_wpa_attr {
 	u8 *key;
 	const u8 *mac_addr;
@@ -335,7 +330,7 @@ static s32 handle_set_wfi_drv_handler(struct wilc_vif *vif,
 		up(&hif_sema_driver);
 
 	if (result) {
-		PRINT_ER("Failed to set driver handler\n");
+		netdev_err(vif->ndev, "Failed to set driver handler\n");
 		return -EINVAL;
 	}
 
@@ -360,7 +355,7 @@ static s32 handle_set_operation_mode(struct wilc_vif *vif,
 		up(&hif_sema_driver);
 
 	if (result) {
-		PRINT_ER("Failed to set driver handler\n");
+		netdev_err(vif->ndev, "Failed to set driver handler\n");
 		return -EINVAL;
 	}
 
@@ -389,7 +384,7 @@ static s32 handle_set_ip_address(struct wilc_vif *vif, u8 *ip_addr, u8 idx)
 	host_int_get_ipaddress(vif, firmware_ip_addr, idx);
 
 	if (result) {
-		PRINT_ER("Failed to set IP address\n");
+		netdev_err(vif->ndev, "Failed to set IP address\n");
 		return -EINVAL;
 	}
 
@@ -417,40 +412,35 @@ static s32 handle_get_ip_address(struct wilc_vif *vif, u8 idx)
 		wilc_setup_ipaddress(vif, set_ip[idx], idx);
 
 	if (result != 0) {
-		PRINT_ER("Failed to get IP address\n");
+		netdev_err(vif->ndev, "Failed to get IP address\n");
 		return -EINVAL;
 	}
 
 	return result;
 }
 
-static s32 handle_set_mac_address(struct wilc_vif *vif,
-				  struct set_mac_addr *set_mac_addr)
+static void handle_set_mac_address(struct wilc_vif *vif,
+				   struct set_mac_addr *set_mac_addr)
 {
-	s32 result = 0;
+	int ret = 0;
 	struct wid wid;
-	u8 *mac_buf = kmalloc(ETH_ALEN, GFP_KERNEL);
+	u8 *mac_buf;
 
-	if (!mac_buf) {
-		PRINT_ER("No buffer to send mac address\n");
-		return -EFAULT;
-	}
-	memcpy(mac_buf, set_mac_addr->mac_addr, ETH_ALEN);
+	mac_buf = kmemdup(set_mac_addr->mac_addr, ETH_ALEN, GFP_KERNEL);
+	if (!mac_buf)
+		return;
 
 	wid.id = (u16)WID_MAC_ADDR;
 	wid.type = WID_STR;
 	wid.val = mac_buf;
 	wid.size = ETH_ALEN;
 
-	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
-				      wilc_get_vif_idx(vif));
-	if (result) {
-		PRINT_ER("Failed to set mac address\n");
-		result = -EFAULT;
-	}
+	ret = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
+				   wilc_get_vif_idx(vif));
+	if (ret)
+		netdev_err(vif->ndev, "Failed to set mac address\n");
 
 	kfree(mac_buf);
-	return result;
 }
 
 static s32 handle_get_mac_address(struct wilc_vif *vif,
@@ -468,7 +458,7 @@ static s32 handle_get_mac_address(struct wilc_vif *vif,
 				      wilc_get_vif_idx(vif));
 
 	if (result) {
-		PRINT_ER("Failed to get mac address\n");
+		netdev_err(vif->ndev, "Failed to get mac address\n");
 		result = -EFAULT;
 	}
 	up(&hif_sema_wait_response);
@@ -482,287 +472,288 @@ static s32 handle_cfg_param(struct wilc_vif *vif,
 	s32 result = 0;
 	struct wid wid_list[32];
 	struct host_if_drv *hif_drv = vif->hif_drv;
-	u8 wid_cnt = 0;
+	int i = 0;
 
 	down(&hif_drv->sem_cfg_values);
 
-	if (cfg_param_attr->cfg_attr_info.flag & BSS_TYPE) {
-		if (cfg_param_attr->cfg_attr_info.bss_type < 6) {
-			wid_list[wid_cnt].id = WID_BSS_TYPE;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.bss_type;
-			wid_list[wid_cnt].type = WID_CHAR;
-			wid_list[wid_cnt].size = sizeof(char);
-			hif_drv->cfg_values.bss_type = (u8)cfg_param_attr->cfg_attr_info.bss_type;
+	if (cfg_param_attr->flag & BSS_TYPE) {
+		if (cfg_param_attr->bss_type < 6) {
+			wid_list[i].id = WID_BSS_TYPE;
+			wid_list[i].val = (s8 *)&cfg_param_attr->bss_type;
+			wid_list[i].type = WID_CHAR;
+			wid_list[i].size = sizeof(char);
+			hif_drv->cfg_values.bss_type = (u8)cfg_param_attr->bss_type;
 		} else {
-			PRINT_ER("check value 6 over\n");
+			netdev_err(vif->ndev, "check value 6 over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & AUTH_TYPE) {
-		if (cfg_param_attr->cfg_attr_info.auth_type == 1 ||
-		    cfg_param_attr->cfg_attr_info.auth_type == 2 ||
-		    cfg_param_attr->cfg_attr_info.auth_type == 5) {
-			wid_list[wid_cnt].id = WID_AUTH_TYPE;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.auth_type;
-			wid_list[wid_cnt].type = WID_CHAR;
-			wid_list[wid_cnt].size = sizeof(char);
-			hif_drv->cfg_values.auth_type = (u8)cfg_param_attr->cfg_attr_info.auth_type;
+		i++;
+	}
+	if (cfg_param_attr->flag & AUTH_TYPE) {
+		if (cfg_param_attr->auth_type == 1 ||
+		    cfg_param_attr->auth_type == 2 ||
+		    cfg_param_attr->auth_type == 5) {
+			wid_list[i].id = WID_AUTH_TYPE;
+			wid_list[i].val = (s8 *)&cfg_param_attr->auth_type;
+			wid_list[i].type = WID_CHAR;
+			wid_list[i].size = sizeof(char);
+			hif_drv->cfg_values.auth_type = (u8)cfg_param_attr->auth_type;
 		} else {
-			PRINT_ER("Impossible value \n");
+			netdev_err(vif->ndev, "Impossible value\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & AUTHEN_TIMEOUT) {
-		if (cfg_param_attr->cfg_attr_info.auth_timeout > 0 &&
-		    cfg_param_attr->cfg_attr_info.auth_timeout < 65536) {
-			wid_list[wid_cnt].id = WID_AUTH_TIMEOUT;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.auth_timeout;
-			wid_list[wid_cnt].type = WID_SHORT;
-			wid_list[wid_cnt].size = sizeof(u16);
-			hif_drv->cfg_values.auth_timeout = cfg_param_attr->cfg_attr_info.auth_timeout;
+		i++;
+	}
+	if (cfg_param_attr->flag & AUTHEN_TIMEOUT) {
+		if (cfg_param_attr->auth_timeout > 0 &&
+		    cfg_param_attr->auth_timeout < 65536) {
+			wid_list[i].id = WID_AUTH_TIMEOUT;
+			wid_list[i].val = (s8 *)&cfg_param_attr->auth_timeout;
+			wid_list[i].type = WID_SHORT;
+			wid_list[i].size = sizeof(u16);
+			hif_drv->cfg_values.auth_timeout = cfg_param_attr->auth_timeout;
 		} else {
-			PRINT_ER("Range(1 ~ 65535) over\n");
+			netdev_err(vif->ndev, "Range(1 ~ 65535) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & POWER_MANAGEMENT) {
-		if (cfg_param_attr->cfg_attr_info.power_mgmt_mode < 5) {
-			wid_list[wid_cnt].id = WID_POWER_MANAGEMENT;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.power_mgmt_mode;
-			wid_list[wid_cnt].type = WID_CHAR;
-			wid_list[wid_cnt].size = sizeof(char);
-			hif_drv->cfg_values.power_mgmt_mode = (u8)cfg_param_attr->cfg_attr_info.power_mgmt_mode;
+		i++;
+	}
+	if (cfg_param_attr->flag & POWER_MANAGEMENT) {
+		if (cfg_param_attr->power_mgmt_mode < 5) {
+			wid_list[i].id = WID_POWER_MANAGEMENT;
+			wid_list[i].val = (s8 *)&cfg_param_attr->power_mgmt_mode;
+			wid_list[i].type = WID_CHAR;
+			wid_list[i].size = sizeof(char);
+			hif_drv->cfg_values.power_mgmt_mode = (u8)cfg_param_attr->power_mgmt_mode;
 		} else {
-			PRINT_ER("Invalid power mode\n");
+			netdev_err(vif->ndev, "Invalid power mode\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & RETRY_SHORT) {
-		if (cfg_param_attr->cfg_attr_info.short_retry_limit > 0 &&
-		    cfg_param_attr->cfg_attr_info.short_retry_limit < 256) {
-			wid_list[wid_cnt].id = WID_SHORT_RETRY_LIMIT;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.short_retry_limit;
-			wid_list[wid_cnt].type = WID_SHORT;
-			wid_list[wid_cnt].size = sizeof(u16);
-			hif_drv->cfg_values.short_retry_limit = cfg_param_attr->cfg_attr_info.short_retry_limit;
+		i++;
+	}
+	if (cfg_param_attr->flag & RETRY_SHORT) {
+		if (cfg_param_attr->short_retry_limit > 0 &&
+		    cfg_param_attr->short_retry_limit < 256) {
+			wid_list[i].id = WID_SHORT_RETRY_LIMIT;
+			wid_list[i].val = (s8 *)&cfg_param_attr->short_retry_limit;
+			wid_list[i].type = WID_SHORT;
+			wid_list[i].size = sizeof(u16);
+			hif_drv->cfg_values.short_retry_limit = cfg_param_attr->short_retry_limit;
 		} else {
-			PRINT_ER("Range(1~256) over\n");
+			netdev_err(vif->ndev, "Range(1~256) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & RETRY_LONG) {
-		if (cfg_param_attr->cfg_attr_info.long_retry_limit > 0 &&
-		    cfg_param_attr->cfg_attr_info.long_retry_limit < 256) {
-			wid_list[wid_cnt].id = WID_LONG_RETRY_LIMIT;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.long_retry_limit;
-			wid_list[wid_cnt].type = WID_SHORT;
-			wid_list[wid_cnt].size = sizeof(u16);
-			hif_drv->cfg_values.long_retry_limit = cfg_param_attr->cfg_attr_info.long_retry_limit;
+		i++;
+	}
+	if (cfg_param_attr->flag & RETRY_LONG) {
+		if (cfg_param_attr->long_retry_limit > 0 &&
+		    cfg_param_attr->long_retry_limit < 256) {
+			wid_list[i].id = WID_LONG_RETRY_LIMIT;
+			wid_list[i].val = (s8 *)&cfg_param_attr->long_retry_limit;
+			wid_list[i].type = WID_SHORT;
+			wid_list[i].size = sizeof(u16);
+			hif_drv->cfg_values.long_retry_limit = cfg_param_attr->long_retry_limit;
 		} else {
-			PRINT_ER("Range(1~256) over\n");
+			netdev_err(vif->ndev, "Range(1~256) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & FRAG_THRESHOLD) {
-		if (cfg_param_attr->cfg_attr_info.frag_threshold > 255 &&
-		    cfg_param_attr->cfg_attr_info.frag_threshold < 7937) {
-			wid_list[wid_cnt].id = WID_FRAG_THRESHOLD;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.frag_threshold;
-			wid_list[wid_cnt].type = WID_SHORT;
-			wid_list[wid_cnt].size = sizeof(u16);
-			hif_drv->cfg_values.frag_threshold = cfg_param_attr->cfg_attr_info.frag_threshold;
+		i++;
+	}
+	if (cfg_param_attr->flag & FRAG_THRESHOLD) {
+		if (cfg_param_attr->frag_threshold > 255 &&
+		    cfg_param_attr->frag_threshold < 7937) {
+			wid_list[i].id = WID_FRAG_THRESHOLD;
+			wid_list[i].val = (s8 *)&cfg_param_attr->frag_threshold;
+			wid_list[i].type = WID_SHORT;
+			wid_list[i].size = sizeof(u16);
+			hif_drv->cfg_values.frag_threshold = cfg_param_attr->frag_threshold;
 		} else {
-			PRINT_ER("Threshold Range fail\n");
+			netdev_err(vif->ndev, "Threshold Range fail\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & RTS_THRESHOLD) {
-		if (cfg_param_attr->cfg_attr_info.rts_threshold > 255 &&
-		    cfg_param_attr->cfg_attr_info.rts_threshold < 65536) {
-			wid_list[wid_cnt].id = WID_RTS_THRESHOLD;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.rts_threshold;
-			wid_list[wid_cnt].type = WID_SHORT;
-			wid_list[wid_cnt].size = sizeof(u16);
-			hif_drv->cfg_values.rts_threshold = cfg_param_attr->cfg_attr_info.rts_threshold;
+		i++;
+	}
+	if (cfg_param_attr->flag & RTS_THRESHOLD) {
+		if (cfg_param_attr->rts_threshold > 255 &&
+		    cfg_param_attr->rts_threshold < 65536) {
+			wid_list[i].id = WID_RTS_THRESHOLD;
+			wid_list[i].val = (s8 *)&cfg_param_attr->rts_threshold;
+			wid_list[i].type = WID_SHORT;
+			wid_list[i].size = sizeof(u16);
+			hif_drv->cfg_values.rts_threshold = cfg_param_attr->rts_threshold;
 		} else {
-			PRINT_ER("Threshold Range fail\n");
+			netdev_err(vif->ndev, "Threshold Range fail\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & PREAMBLE) {
-		if (cfg_param_attr->cfg_attr_info.preamble_type < 3) {
-			wid_list[wid_cnt].id = WID_PREAMBLE;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.preamble_type;
-			wid_list[wid_cnt].type = WID_CHAR;
-			wid_list[wid_cnt].size = sizeof(char);
-			hif_drv->cfg_values.preamble_type = cfg_param_attr->cfg_attr_info.preamble_type;
+		i++;
+	}
+	if (cfg_param_attr->flag & PREAMBLE) {
+		if (cfg_param_attr->preamble_type < 3) {
+			wid_list[i].id = WID_PREAMBLE;
+			wid_list[i].val = (s8 *)&cfg_param_attr->preamble_type;
+			wid_list[i].type = WID_CHAR;
+			wid_list[i].size = sizeof(char);
+			hif_drv->cfg_values.preamble_type = cfg_param_attr->preamble_type;
 		} else {
-			PRINT_ER("Preamle Range(0~2) over\n");
+			netdev_err(vif->ndev, "Preamle Range(0~2) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & SHORT_SLOT_ALLOWED) {
-		if (cfg_param_attr->cfg_attr_info.short_slot_allowed < 2) {
-			wid_list[wid_cnt].id = WID_SHORT_SLOT_ALLOWED;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.short_slot_allowed;
-			wid_list[wid_cnt].type = WID_CHAR;
-			wid_list[wid_cnt].size = sizeof(char);
-			hif_drv->cfg_values.short_slot_allowed = (u8)cfg_param_attr->cfg_attr_info.short_slot_allowed;
+		i++;
+	}
+	if (cfg_param_attr->flag & SHORT_SLOT_ALLOWED) {
+		if (cfg_param_attr->short_slot_allowed < 2) {
+			wid_list[i].id = WID_SHORT_SLOT_ALLOWED;
+			wid_list[i].val = (s8 *)&cfg_param_attr->short_slot_allowed;
+			wid_list[i].type = WID_CHAR;
+			wid_list[i].size = sizeof(char);
+			hif_drv->cfg_values.short_slot_allowed = (u8)cfg_param_attr->short_slot_allowed;
 		} else {
-			PRINT_ER("Short slot(2) over\n");
+			netdev_err(vif->ndev, "Short slot(2) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & TXOP_PROT_DISABLE) {
-		if (cfg_param_attr->cfg_attr_info.txop_prot_disabled < 2) {
-			wid_list[wid_cnt].id = WID_11N_TXOP_PROT_DISABLE;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.txop_prot_disabled;
-			wid_list[wid_cnt].type = WID_CHAR;
-			wid_list[wid_cnt].size = sizeof(char);
-			hif_drv->cfg_values.txop_prot_disabled = (u8)cfg_param_attr->cfg_attr_info.txop_prot_disabled;
+		i++;
+	}
+	if (cfg_param_attr->flag & TXOP_PROT_DISABLE) {
+		if (cfg_param_attr->txop_prot_disabled < 2) {
+			wid_list[i].id = WID_11N_TXOP_PROT_DISABLE;
+			wid_list[i].val = (s8 *)&cfg_param_attr->txop_prot_disabled;
+			wid_list[i].type = WID_CHAR;
+			wid_list[i].size = sizeof(char);
+			hif_drv->cfg_values.txop_prot_disabled = (u8)cfg_param_attr->txop_prot_disabled;
 		} else {
-			PRINT_ER("TXOP prot disable\n");
+			netdev_err(vif->ndev, "TXOP prot disable\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & BEACON_INTERVAL) {
-		if (cfg_param_attr->cfg_attr_info.beacon_interval > 0 &&
-		    cfg_param_attr->cfg_attr_info.beacon_interval < 65536) {
-			wid_list[wid_cnt].id = WID_BEACON_INTERVAL;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.beacon_interval;
-			wid_list[wid_cnt].type = WID_SHORT;
-			wid_list[wid_cnt].size = sizeof(u16);
-			hif_drv->cfg_values.beacon_interval = cfg_param_attr->cfg_attr_info.beacon_interval;
+		i++;
+	}
+	if (cfg_param_attr->flag & BEACON_INTERVAL) {
+		if (cfg_param_attr->beacon_interval > 0 &&
+		    cfg_param_attr->beacon_interval < 65536) {
+			wid_list[i].id = WID_BEACON_INTERVAL;
+			wid_list[i].val = (s8 *)&cfg_param_attr->beacon_interval;
+			wid_list[i].type = WID_SHORT;
+			wid_list[i].size = sizeof(u16);
+			hif_drv->cfg_values.beacon_interval = cfg_param_attr->beacon_interval;
 		} else {
-			PRINT_ER("Beacon interval(1~65535) fail\n");
+			netdev_err(vif->ndev, "Beacon interval(1~65535)fail\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & DTIM_PERIOD) {
-		if (cfg_param_attr->cfg_attr_info.dtim_period > 0 &&
-		    cfg_param_attr->cfg_attr_info.dtim_period < 256) {
-			wid_list[wid_cnt].id = WID_DTIM_PERIOD;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.dtim_period;
-			wid_list[wid_cnt].type = WID_CHAR;
-			wid_list[wid_cnt].size = sizeof(char);
-			hif_drv->cfg_values.dtim_period = cfg_param_attr->cfg_attr_info.dtim_period;
+		i++;
+	}
+	if (cfg_param_attr->flag & DTIM_PERIOD) {
+		if (cfg_param_attr->dtim_period > 0 &&
+		    cfg_param_attr->dtim_period < 256) {
+			wid_list[i].id = WID_DTIM_PERIOD;
+			wid_list[i].val = (s8 *)&cfg_param_attr->dtim_period;
+			wid_list[i].type = WID_CHAR;
+			wid_list[i].size = sizeof(char);
+			hif_drv->cfg_values.dtim_period = cfg_param_attr->dtim_period;
 		} else {
-			PRINT_ER("DTIM range(1~255) fail\n");
+			netdev_err(vif->ndev, "DTIM range(1~255) fail\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & SITE_SURVEY) {
-		if (cfg_param_attr->cfg_attr_info.site_survey_enabled < 3) {
-			wid_list[wid_cnt].id = WID_SITE_SURVEY;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.site_survey_enabled;
-			wid_list[wid_cnt].type = WID_CHAR;
-			wid_list[wid_cnt].size = sizeof(char);
-			hif_drv->cfg_values.site_survey_enabled = (u8)cfg_param_attr->cfg_attr_info.site_survey_enabled;
+		i++;
+	}
+	if (cfg_param_attr->flag & SITE_SURVEY) {
+		if (cfg_param_attr->site_survey_enabled < 3) {
+			wid_list[i].id = WID_SITE_SURVEY;
+			wid_list[i].val = (s8 *)&cfg_param_attr->site_survey_enabled;
+			wid_list[i].type = WID_CHAR;
+			wid_list[i].size = sizeof(char);
+			hif_drv->cfg_values.site_survey_enabled = (u8)cfg_param_attr->site_survey_enabled;
 		} else {
-			PRINT_ER("Site survey disable\n");
+			netdev_err(vif->ndev, "Site survey disable\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & SITE_SURVEY_SCAN_TIME) {
-		if (cfg_param_attr->cfg_attr_info.site_survey_scan_time > 0 &&
-		    cfg_param_attr->cfg_attr_info.site_survey_scan_time < 65536) {
-			wid_list[wid_cnt].id = WID_SITE_SURVEY_SCAN_TIME;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.site_survey_scan_time;
-			wid_list[wid_cnt].type = WID_SHORT;
-			wid_list[wid_cnt].size = sizeof(u16);
-			hif_drv->cfg_values.site_survey_scan_time = cfg_param_attr->cfg_attr_info.site_survey_scan_time;
+		i++;
+	}
+	if (cfg_param_attr->flag & SITE_SURVEY_SCAN_TIME) {
+		if (cfg_param_attr->site_survey_scan_time > 0 &&
+		    cfg_param_attr->site_survey_scan_time < 65536) {
+			wid_list[i].id = WID_SITE_SURVEY_SCAN_TIME;
+			wid_list[i].val = (s8 *)&cfg_param_attr->site_survey_scan_time;
+			wid_list[i].type = WID_SHORT;
+			wid_list[i].size = sizeof(u16);
+			hif_drv->cfg_values.site_survey_scan_time = cfg_param_attr->site_survey_scan_time;
 		} else {
-			PRINT_ER("Site survey scan time(1~65535) over\n");
+			netdev_err(vif->ndev, "Site scan time(1~65535) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & ACTIVE_SCANTIME) {
-		if (cfg_param_attr->cfg_attr_info.active_scan_time > 0 &&
-		    cfg_param_attr->cfg_attr_info.active_scan_time < 65536) {
-			wid_list[wid_cnt].id = WID_ACTIVE_SCAN_TIME;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.active_scan_time;
-			wid_list[wid_cnt].type = WID_SHORT;
-			wid_list[wid_cnt].size = sizeof(u16);
-			hif_drv->cfg_values.active_scan_time = cfg_param_attr->cfg_attr_info.active_scan_time;
+		i++;
+	}
+	if (cfg_param_attr->flag & ACTIVE_SCANTIME) {
+		if (cfg_param_attr->active_scan_time > 0 &&
+		    cfg_param_attr->active_scan_time < 65536) {
+			wid_list[i].id = WID_ACTIVE_SCAN_TIME;
+			wid_list[i].val = (s8 *)&cfg_param_attr->active_scan_time;
+			wid_list[i].type = WID_SHORT;
+			wid_list[i].size = sizeof(u16);
+			hif_drv->cfg_values.active_scan_time = cfg_param_attr->active_scan_time;
 		} else {
-			PRINT_ER("Active scan time(1~65535) over\n");
+			netdev_err(vif->ndev, "Active time(1~65535) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & PASSIVE_SCANTIME) {
-		if (cfg_param_attr->cfg_attr_info.passive_scan_time > 0 &&
-		    cfg_param_attr->cfg_attr_info.passive_scan_time < 65536) {
-			wid_list[wid_cnt].id = WID_PASSIVE_SCAN_TIME;
-			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.passive_scan_time;
-			wid_list[wid_cnt].type = WID_SHORT;
-			wid_list[wid_cnt].size = sizeof(u16);
-			hif_drv->cfg_values.passive_scan_time = cfg_param_attr->cfg_attr_info.passive_scan_time;
+		i++;
+	}
+	if (cfg_param_attr->flag & PASSIVE_SCANTIME) {
+		if (cfg_param_attr->passive_scan_time > 0 &&
+		    cfg_param_attr->passive_scan_time < 65536) {
+			wid_list[i].id = WID_PASSIVE_SCAN_TIME;
+			wid_list[i].val = (s8 *)&cfg_param_attr->passive_scan_time;
+			wid_list[i].type = WID_SHORT;
+			wid_list[i].size = sizeof(u16);
+			hif_drv->cfg_values.passive_scan_time = cfg_param_attr->passive_scan_time;
 		} else {
-			PRINT_ER("Passive scan time(1~65535) over\n");
+			netdev_err(vif->ndev, "Passive time(1~65535) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
-	}
-	if (cfg_param_attr->cfg_attr_info.flag & CURRENT_TX_RATE) {
-		enum CURRENT_TXRATE curr_tx_rate = cfg_param_attr->cfg_attr_info.curr_tx_rate;
-
-		if (curr_tx_rate == AUTORATE || curr_tx_rate == MBPS_1
-		    || curr_tx_rate == MBPS_2 || curr_tx_rate == MBPS_5_5
-		    || curr_tx_rate == MBPS_11 || curr_tx_rate == MBPS_6
-		    || curr_tx_rate == MBPS_9 || curr_tx_rate == MBPS_12
-		    || curr_tx_rate == MBPS_18 || curr_tx_rate == MBPS_24
-		    || curr_tx_rate == MBPS_36 || curr_tx_rate == MBPS_48 || curr_tx_rate == MBPS_54) {
-			wid_list[wid_cnt].id = WID_CURRENT_TX_RATE;
-			wid_list[wid_cnt].val = (s8 *)&curr_tx_rate;
-			wid_list[wid_cnt].type = WID_SHORT;
-			wid_list[wid_cnt].size = sizeof(u16);
+		i++;
+	}
+	if (cfg_param_attr->flag & CURRENT_TX_RATE) {
+		enum CURRENT_TXRATE curr_tx_rate = cfg_param_attr->curr_tx_rate;
+
+		if (curr_tx_rate == AUTORATE || curr_tx_rate == MBPS_1 ||
+		    curr_tx_rate == MBPS_2 || curr_tx_rate == MBPS_5_5 ||
+		    curr_tx_rate == MBPS_11 || curr_tx_rate == MBPS_6 ||
+		    curr_tx_rate == MBPS_9 || curr_tx_rate == MBPS_12 ||
+		    curr_tx_rate == MBPS_18 || curr_tx_rate == MBPS_24 ||
+		    curr_tx_rate == MBPS_36 || curr_tx_rate == MBPS_48 ||
+		    curr_tx_rate == MBPS_54) {
+			wid_list[i].id = WID_CURRENT_TX_RATE;
+			wid_list[i].val = (s8 *)&curr_tx_rate;
+			wid_list[i].type = WID_SHORT;
+			wid_list[i].size = sizeof(u16);
 			hif_drv->cfg_values.curr_tx_rate = (u8)curr_tx_rate;
 		} else {
-			PRINT_ER("out of TX rate\n");
+			netdev_err(vif->ndev, "out of TX rate\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		wid_cnt++;
+		i++;
 	}
 
 	result = wilc_send_config_pkt(vif, SET_CFG, wid_list,
-				      wid_cnt, wilc_get_vif_idx(vif));
+				      i, wilc_get_vif_idx(vif));
 
 	if (result)
-		PRINT_ER("Error in setting CFG params\n");
+		netdev_err(vif->ndev, "Error in setting CFG params\n");
 
 ERRORHANDLER:
 	up(&hif_drv->sem_cfg_values);
@@ -795,13 +786,13 @@ static s32 Handle_Scan(struct wilc_vif *vif,
 
 	if ((hif_drv->hif_state >= HOST_IF_SCANNING) &&
 	    (hif_drv->hif_state < HOST_IF_CONNECTED)) {
-		PRINT_ER("Already scan\n");
+		netdev_err(vif->ndev, "Already scan\n");
 		result = -EBUSY;
 		goto ERRORHANDLER;
 	}
 
 	if (wilc_optaining_ip || wilc_connecting) {
-		PRINT_ER("Don't do obss scan\n");
+		netdev_err(vif->ndev, "Don't do obss scan\n");
 		result = -EBUSY;
 		goto ERRORHANDLER;
 	}
@@ -877,7 +868,7 @@ static s32 Handle_Scan(struct wilc_vif *vif,
 				      wilc_get_vif_idx(vif));
 
 	if (result)
-		PRINT_ER("Failed to send scan parameters config packet\n");
+		netdev_err(vif->ndev, "Failed to send scan parameters\n");
 
 ERRORHANDLER:
 	if (result) {
@@ -917,13 +908,13 @@ static s32 Handle_ScanDone(struct wilc_vif *vif,
 					      wilc_get_vif_idx(vif));
 
 		if (result) {
-			PRINT_ER("Failed to set abort running scan\n");
+			netdev_err(vif->ndev, "Failed to set abort running\n");
 			result = -EFAULT;
 		}
 	}
 
 	if (!hif_drv) {
-		PRINT_ER("Driver handler is NULL\n");
+		netdev_err(vif->ndev, "Driver handler is NULL\n");
 		return result;
 	}
 
@@ -949,13 +940,13 @@ static s32 Handle_Connect(struct wilc_vif *vif,
 
 	if (memcmp(pstrHostIFconnectAttr->bssid, wilc_connected_ssid, ETH_ALEN) == 0) {
 		result = 0;
-		PRINT_ER("Trying to connect to an already connected AP, Discard connect request\n");
+		netdev_err(vif->ndev, "Discard connect request\n");
 		return result;
 	}
 
 	ptstrJoinBssParam = pstrHostIFconnectAttr->params;
 	if (!ptstrJoinBssParam) {
-		PRINT_ER("Required BSSID not found\n");
+		netdev_err(vif->ndev, "Required BSSID not found\n");
 		result = -ENOENT;
 		goto ERRORHANDLER;
 	}
@@ -1063,7 +1054,7 @@ static s32 Handle_Connect(struct wilc_vif *vif,
 	if ((pstrHostIFconnectAttr->ch >= 1) && (pstrHostIFconnectAttr->ch <= 14)) {
 		*(pu8CurrByte++) = pstrHostIFconnectAttr->ch;
 	} else {
-		PRINT_ER("Channel out of range\n");
+		netdev_err(vif->ndev, "Channel out of range\n");
 		*(pu8CurrByte++) = 0xFF;
 	}
 	*(pu8CurrByte++)  = (ptstrJoinBssParam->cap_info) & 0xFF;
@@ -1146,7 +1137,7 @@ static s32 Handle_Connect(struct wilc_vif *vif,
 				      u32WidsCount,
 				      wilc_get_vif_idx(vif));
 	if (result) {
-		PRINT_ER("failed to send config packet\n");
+		netdev_err(vif->ndev, "failed to send config packet\n");
 		result = -EFAULT;
 		goto ERRORHANDLER;
 	} else {
@@ -1155,20 +1146,20 @@ static s32 Handle_Connect(struct wilc_vif *vif,
 
 ERRORHANDLER:
 	if (result) {
-		tstrConnectInfo strConnectInfo;
+		struct connect_info strConnectInfo;
 
 		del_timer(&hif_drv->connect_timer);
 
-		memset(&strConnectInfo, 0, sizeof(tstrConnectInfo));
+		memset(&strConnectInfo, 0, sizeof(struct connect_info));
 
 		if (pstrHostIFconnectAttr->result) {
 			if (pstrHostIFconnectAttr->bssid)
-				memcpy(strConnectInfo.au8bssid, pstrHostIFconnectAttr->bssid, 6);
+				memcpy(strConnectInfo.bssid, pstrHostIFconnectAttr->bssid, 6);
 
 			if (pstrHostIFconnectAttr->ies) {
-				strConnectInfo.ReqIEsLen = pstrHostIFconnectAttr->ies_len;
-				strConnectInfo.pu8ReqIEs = kmalloc(pstrHostIFconnectAttr->ies_len, GFP_KERNEL);
-				memcpy(strConnectInfo.pu8ReqIEs,
+				strConnectInfo.req_ies_len = pstrHostIFconnectAttr->ies_len;
+				strConnectInfo.req_ies = kmalloc(pstrHostIFconnectAttr->ies_len, GFP_KERNEL);
+				memcpy(strConnectInfo.req_ies,
 				       pstrHostIFconnectAttr->ies,
 				       pstrHostIFconnectAttr->ies_len);
 			}
@@ -1179,11 +1170,11 @@ ERRORHANDLER:
 							       NULL,
 							       pstrHostIFconnectAttr->arg);
 			hif_drv->hif_state = HOST_IF_IDLE;
-			kfree(strConnectInfo.pu8ReqIEs);
-			strConnectInfo.pu8ReqIEs = NULL;
+			kfree(strConnectInfo.req_ies);
+			strConnectInfo.req_ies = NULL;
 
 		} else {
-			PRINT_ER("Connect callback function pointer is NULL\n");
+			netdev_err(vif->ndev, "Connect callback is NULL\n");
 		}
 	}
 
@@ -1240,7 +1231,7 @@ static s32 Handle_FlushConnect(struct wilc_vif *vif)
 				      u32WidsCount,
 				      wilc_get_vif_idx(join_req_vif));
 	if (result) {
-		PRINT_ER("failed to send config packet\n");
+		netdev_err(vif->ndev, "failed to send config packet\n");
 		result = -EINVAL;
 	}
 
@@ -1250,13 +1241,13 @@ static s32 Handle_FlushConnect(struct wilc_vif *vif)
 static s32 Handle_ConnectTimeout(struct wilc_vif *vif)
 {
 	s32 result = 0;
-	tstrConnectInfo strConnectInfo;
+	struct connect_info strConnectInfo;
 	struct wid wid;
 	u16 u16DummyReasonCode = 0;
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("Driver handler is NULL\n");
+		netdev_err(vif->ndev, "Driver handler is NULL\n");
 		return result;
 	}
 
@@ -1264,18 +1255,18 @@ static s32 Handle_ConnectTimeout(struct wilc_vif *vif)
 
 	scan_while_connected = false;
 
-	memset(&strConnectInfo, 0, sizeof(tstrConnectInfo));
+	memset(&strConnectInfo, 0, sizeof(struct connect_info));
 
 	if (hif_drv->usr_conn_req.conn_result) {
 		if (hif_drv->usr_conn_req.bssid) {
-			memcpy(strConnectInfo.au8bssid,
+			memcpy(strConnectInfo.bssid,
 			       hif_drv->usr_conn_req.bssid, 6);
 		}
 
 		if (hif_drv->usr_conn_req.ies) {
-			strConnectInfo.ReqIEsLen = hif_drv->usr_conn_req.ies_len;
-			strConnectInfo.pu8ReqIEs = kmalloc(hif_drv->usr_conn_req.ies_len, GFP_KERNEL);
-			memcpy(strConnectInfo.pu8ReqIEs,
+			strConnectInfo.req_ies_len = hif_drv->usr_conn_req.ies_len;
+			strConnectInfo.req_ies = kmalloc(hif_drv->usr_conn_req.ies_len, GFP_KERNEL);
+			memcpy(strConnectInfo.req_ies,
 			       hif_drv->usr_conn_req.ies,
 			       hif_drv->usr_conn_req.ies_len);
 		}
@@ -1286,10 +1277,10 @@ static s32 Handle_ConnectTimeout(struct wilc_vif *vif)
 						  NULL,
 						  hif_drv->usr_conn_req.arg);
 
-		kfree(strConnectInfo.pu8ReqIEs);
-		strConnectInfo.pu8ReqIEs = NULL;
+		kfree(strConnectInfo.req_ies);
+		strConnectInfo.req_ies = NULL;
 	} else {
-		PRINT_ER("Connect callback function pointer is NULL\n");
+		netdev_err(vif->ndev, "Connect callback is NULL\n");
 	}
 
 	wid.id = (u16)WID_DISCONNECT;
@@ -1300,7 +1291,7 @@ static s32 Handle_ConnectTimeout(struct wilc_vif *vif)
 	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result)
-		PRINT_ER("Failed to send dissconect config packet\n");
+		netdev_err(vif->ndev, "Failed to send dissconect\n");
 
 	hif_drv->usr_conn_req.ssid_len = 0;
 	kfree(hif_drv->usr_conn_req.ssid);
@@ -1342,7 +1333,7 @@ static s32 Handle_RcvdNtwrkInfo(struct wilc_vif *vif,
 		wilc_parse_network_info(pstrRcvdNetworkInfo->buffer, &pstrNetworkInfo);
 		if ((!pstrNetworkInfo) ||
 		    (!hif_drv->usr_scan_req.scan_result)) {
-			PRINT_ER("driver is null\n");
+			netdev_err(vif->ndev, "driver is null\n");
 			result = -EINVAL;
 			goto done;
 		}
@@ -1418,13 +1409,13 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif,
 	u8 u8MacStatus;
 	u8 u8MacStatusReasonCode;
 	u8 u8MacStatusAdditionalInfo;
-	tstrConnectInfo strConnectInfo;
-	tstrDisconnectNotifInfo strDisconnectNotifInfo;
+	struct connect_info strConnectInfo;
+	struct disconnect_info strDisconnectNotifInfo;
 	s32 s32Err = 0;
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("Driver handler is NULL\n");
+		netdev_err(vif->ndev, "Driver handler is NULL\n");
 		return -ENODEV;
 	}
 
@@ -1433,14 +1424,14 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif,
 	    hif_drv->usr_scan_req.scan_result) {
 		if (!pstrRcvdGnrlAsyncInfo->buffer ||
 		    !hif_drv->usr_conn_req.conn_result) {
-			PRINT_ER("driver is null\n");
+			netdev_err(vif->ndev, "driver is null\n");
 			return -EINVAL;
 		}
 
 		u8MsgType = pstrRcvdGnrlAsyncInfo->buffer[0];
 
 		if ('I' != u8MsgType) {
-			PRINT_ER("Received Message format incorrect.\n");
+			netdev_err(vif->ndev, "Received Message incorrect.\n");
 			return -EFAULT;
 		}
 
@@ -1455,7 +1446,7 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif,
 			u32 u32RcvdAssocRespInfoLen = 0;
 			struct connect_resp_info *pstrConnectRespInfo = NULL;
 
-			memset(&strConnectInfo, 0, sizeof(tstrConnectInfo));
+			memset(&strConnectInfo, 0, sizeof(struct connect_info));
 
 			if (u8MacStatus == MAC_CONNECTED) {
 				memset(rcv_assoc_resp, 0, MAX_ASSOC_RESP_FRAME_SIZE);
@@ -1469,15 +1460,15 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif,
 					s32Err = wilc_parse_assoc_resp_info(rcv_assoc_resp, u32RcvdAssocRespInfoLen,
 								    &pstrConnectRespInfo);
 					if (s32Err) {
-						PRINT_ER("wilc_parse_assoc_resp_info() returned error %d\n", s32Err);
+						netdev_err(vif->ndev, "wilc_parse_assoc_resp_info() returned error %d\n", s32Err);
 					} else {
-						strConnectInfo.u16ConnectStatus = pstrConnectRespInfo->status;
+						strConnectInfo.status = pstrConnectRespInfo->status;
 
-						if (strConnectInfo.u16ConnectStatus == SUCCESSFUL_STATUSCODE) {
+						if (strConnectInfo.status == SUCCESSFUL_STATUSCODE) {
 							if (pstrConnectRespInfo->ies) {
-								strConnectInfo.u16RespIEsLen = pstrConnectRespInfo->ies_len;
-								strConnectInfo.pu8RespIEs = kmalloc(pstrConnectRespInfo->ies_len, GFP_KERNEL);
-								memcpy(strConnectInfo.pu8RespIEs, pstrConnectRespInfo->ies,
+								strConnectInfo.resp_ies_len = pstrConnectRespInfo->ies_len;
+								strConnectInfo.resp_ies = kmalloc(pstrConnectRespInfo->ies_len, GFP_KERNEL);
+								memcpy(strConnectInfo.resp_ies, pstrConnectRespInfo->ies,
 								       pstrConnectRespInfo->ies_len);
 							}
 						}
@@ -1491,28 +1482,28 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif,
 			}
 
 			if ((u8MacStatus == MAC_CONNECTED) &&
-			    (strConnectInfo.u16ConnectStatus != SUCCESSFUL_STATUSCODE))	{
-				PRINT_ER("Received MAC status is MAC_CONNECTED while the received status code in Asoc Resp is not SUCCESSFUL_STATUSCODE\n");
+			    (strConnectInfo.status != SUCCESSFUL_STATUSCODE))	{
+				netdev_err(vif->ndev, "Received MAC status is MAC_CONNECTED while the received status code in Asoc Resp is not SUCCESSFUL_STATUSCODE\n");
 				eth_zero_addr(wilc_connected_ssid);
 			} else if (u8MacStatus == MAC_DISCONNECTED)    {
-				PRINT_ER("Received MAC status is MAC_DISCONNECTED\n");
+				netdev_err(vif->ndev, "Received MAC status is MAC_DISCONNECTED\n");
 				eth_zero_addr(wilc_connected_ssid);
 			}
 
 			if (hif_drv->usr_conn_req.bssid) {
-				memcpy(strConnectInfo.au8bssid, hif_drv->usr_conn_req.bssid, 6);
+				memcpy(strConnectInfo.bssid, hif_drv->usr_conn_req.bssid, 6);
 
 				if ((u8MacStatus == MAC_CONNECTED) &&
-				    (strConnectInfo.u16ConnectStatus == SUCCESSFUL_STATUSCODE))	{
+				    (strConnectInfo.status == SUCCESSFUL_STATUSCODE))	{
 					memcpy(hif_drv->assoc_bssid,
 					       hif_drv->usr_conn_req.bssid, ETH_ALEN);
 				}
 			}
 
 			if (hif_drv->usr_conn_req.ies) {
-				strConnectInfo.ReqIEsLen = hif_drv->usr_conn_req.ies_len;
-				strConnectInfo.pu8ReqIEs = kmalloc(hif_drv->usr_conn_req.ies_len, GFP_KERNEL);
-				memcpy(strConnectInfo.pu8ReqIEs,
+				strConnectInfo.req_ies_len = hif_drv->usr_conn_req.ies_len;
+				strConnectInfo.req_ies = kmalloc(hif_drv->usr_conn_req.ies_len, GFP_KERNEL);
+				memcpy(strConnectInfo.req_ies,
 				       hif_drv->usr_conn_req.ies,
 				       hif_drv->usr_conn_req.ies_len);
 			}
@@ -1525,7 +1516,7 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif,
 							  hif_drv->usr_conn_req.arg);
 
 			if ((u8MacStatus == MAC_CONNECTED) &&
-			    (strConnectInfo.u16ConnectStatus == SUCCESSFUL_STATUSCODE))	{
+			    (strConnectInfo.status == SUCCESSFUL_STATUSCODE))	{
 				wilc_set_power_mgmt(vif, 0, 0);
 
 				hif_drv->hif_state = HOST_IF_CONNECTED;
@@ -1538,11 +1529,11 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif,
 				scan_while_connected = false;
 			}
 
-			kfree(strConnectInfo.pu8RespIEs);
-			strConnectInfo.pu8RespIEs = NULL;
+			kfree(strConnectInfo.resp_ies);
+			strConnectInfo.resp_ies = NULL;
 
-			kfree(strConnectInfo.pu8ReqIEs);
-			strConnectInfo.pu8ReqIEs = NULL;
+			kfree(strConnectInfo.req_ies);
+			strConnectInfo.req_ies = NULL;
 			hif_drv->usr_conn_req.ssid_len = 0;
 			kfree(hif_drv->usr_conn_req.ssid);
 			hif_drv->usr_conn_req.ssid = NULL;
@@ -1553,14 +1544,14 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif,
 			hif_drv->usr_conn_req.ies = NULL;
 		} else if ((u8MacStatus == MAC_DISCONNECTED) &&
 			   (hif_drv->hif_state == HOST_IF_CONNECTED)) {
-			memset(&strDisconnectNotifInfo, 0, sizeof(tstrDisconnectNotifInfo));
+			memset(&strDisconnectNotifInfo, 0, sizeof(struct disconnect_info));
 
 			if (hif_drv->usr_scan_req.scan_result) {
 				del_timer(&hif_drv->scan_timer);
 				Handle_ScanDone(vif, SCAN_EVENT_ABORTED);
 			}
 
-			strDisconnectNotifInfo.u16reason = 0;
+			strDisconnectNotifInfo.reason = 0;
 			strDisconnectNotifInfo.ie = NULL;
 			strDisconnectNotifInfo.ie_len = 0;
 
@@ -1574,7 +1565,7 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif,
 								  &strDisconnectNotifInfo,
 								  hif_drv->usr_conn_req.arg);
 			} else {
-				PRINT_ER("Connect result callback function is NULL\n");
+				netdev_err(vif->ndev, "Connect result NULL\n");
 			}
 
 			eth_zero_addr(hif_drv->assoc_bssid);
@@ -1643,11 +1634,8 @@ static int Handle_Key(struct wilc_vif *vif,
 
 			pu8keybuf = kmalloc(pstrHostIFkeyAttr->attr.wep.key_len + 2,
 					    GFP_KERNEL);
-
-			if (pu8keybuf == NULL) {
-				PRINT_ER("No buffer to send Key\n");
+			if (!pu8keybuf)
 				return -ENOMEM;
-			}
 
 			pu8keybuf[0] = pstrHostIFkeyAttr->attr.wep.index;
 			pu8keybuf[1] = pstrHostIFkeyAttr->attr.wep.key_len;
@@ -1668,10 +1656,8 @@ static int Handle_Key(struct wilc_vif *vif,
 			kfree(pu8keybuf);
 		} else if (pstrHostIFkeyAttr->action & ADDKEY) {
 			pu8keybuf = kmalloc(pstrHostIFkeyAttr->attr.wep.key_len + 2, GFP_KERNEL);
-			if (!pu8keybuf) {
-				PRINT_ER("No buffer to send Key\n");
+			if (!pu8keybuf)
 				return -ENOMEM;
-			}
 			pu8keybuf[0] = pstrHostIFkeyAttr->attr.wep.index;
 			memcpy(pu8keybuf + 1, &pstrHostIFkeyAttr->attr.wep.key_len, 1);
 			memcpy(pu8keybuf + 2, pstrHostIFkeyAttr->attr.wep.key,
@@ -1715,7 +1701,6 @@ static int Handle_Key(struct wilc_vif *vif,
 		if (pstrHostIFkeyAttr->action & ADDKEY_AP) {
 			pu8keybuf = kzalloc(RX_MIC_KEY_MSG_LEN, GFP_KERNEL);
 			if (!pu8keybuf) {
-				PRINT_ER("No buffer to send RxGTK Key\n");
 				ret = -ENOMEM;
 				goto _WPARxGtk_end_case_;
 			}
@@ -1747,7 +1732,6 @@ static int Handle_Key(struct wilc_vif *vif,
 		} else if (pstrHostIFkeyAttr->action & ADDKEY) {
 			pu8keybuf = kzalloc(RX_MIC_KEY_MSG_LEN, GFP_KERNEL);
 			if (pu8keybuf == NULL) {
-				PRINT_ER("No buffer to send RxGTK Key\n");
 				ret = -ENOMEM;
 				goto _WPARxGtk_end_case_;
 			}
@@ -1755,7 +1739,7 @@ static int Handle_Key(struct wilc_vif *vif,
 			if (hif_drv->hif_state == HOST_IF_CONNECTED)
 				memcpy(pu8keybuf, hif_drv->assoc_bssid, ETH_ALEN);
 			else
-				PRINT_ER("Couldn't handle WPARxGtk while state is not HOST_IF_CONNECTED\n");
+				netdev_err(vif->ndev, "Couldn't handle\n");
 
 			memcpy(pu8keybuf + 6, pstrHostIFkeyAttr->attr.wpa.seq, 8);
 			memcpy(pu8keybuf + 14, &pstrHostIFkeyAttr->attr.wpa.index, 1);
@@ -1787,7 +1771,6 @@ _WPARxGtk_end_case_:
 		if (pstrHostIFkeyAttr->action & ADDKEY_AP) {
 			pu8keybuf = kmalloc(PTK_KEY_MSG_LEN + 1, GFP_KERNEL);
 			if (!pu8keybuf) {
-				PRINT_ER("No buffer to send PTK Key\n");
 				ret = -ENOMEM;
 				goto _WPAPtk_end_case_;
 			}
@@ -1816,7 +1799,7 @@ _WPARxGtk_end_case_:
 		} else if (pstrHostIFkeyAttr->action & ADDKEY) {
 			pu8keybuf = kmalloc(PTK_KEY_MSG_LEN, GFP_KERNEL);
 			if (!pu8keybuf) {
-				PRINT_ER("No buffer to send PTK Key\n");
+				netdev_err(vif->ndev, "No buffer send PTK\n");
 				ret = -ENOMEM;
 				goto _WPAPtk_end_case_;
 			}
@@ -1848,7 +1831,7 @@ _WPAPtk_end_case_:
 	case PMKSA:
 		pu8keybuf = kmalloc((pstrHostIFkeyAttr->attr.pmkid.numpmkid * PMKSA_KEY_LEN) + 1, GFP_KERNEL);
 		if (!pu8keybuf) {
-			PRINT_ER("No buffer to send PMKSA Key\n");
+			netdev_err(vif->ndev, "No buffer to send PMKSA Key\n");
 			return -ENOMEM;
 		}
 
@@ -1872,7 +1855,7 @@ _WPAPtk_end_case_:
 	}
 
 	if (result)
-		PRINT_ER("Failed to send key config packet\n");
+		netdev_err(vif->ndev, "Failed to send key config packet\n");
 
 	return result;
 }
@@ -1899,13 +1882,13 @@ static void Handle_Disconnect(struct wilc_vif *vif)
 				      wilc_get_vif_idx(vif));
 
 	if (result) {
-		PRINT_ER("Failed to send dissconect config packet\n");
+		netdev_err(vif->ndev, "Failed to send dissconect\n");
 	} else {
-		tstrDisconnectNotifInfo strDisconnectNotifInfo;
+		struct disconnect_info strDisconnectNotifInfo;
 
-		memset(&strDisconnectNotifInfo, 0, sizeof(tstrDisconnectNotifInfo));
+		memset(&strDisconnectNotifInfo, 0, sizeof(struct disconnect_info));
 
-		strDisconnectNotifInfo.u16reason = 0;
+		strDisconnectNotifInfo.reason = 0;
 		strDisconnectNotifInfo.ie = NULL;
 		strDisconnectNotifInfo.ie_len = 0;
 
@@ -1928,7 +1911,7 @@ static void Handle_Disconnect(struct wilc_vif *vif)
 							  &strDisconnectNotifInfo,
 							  hif_drv->usr_conn_req.arg);
 		} else {
-			PRINT_ER("usr_conn_req.conn_result = NULL\n");
+			netdev_err(vif->ndev, "conn_result = NULL\n");
 		}
 
 		scan_while_connected = false;
@@ -1973,7 +1956,6 @@ static s32 Handle_GetChnl(struct wilc_vif *vif)
 {
 	s32 result = 0;
 	struct wid wid;
-	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	wid.id = (u16)WID_CURRENT_CHANNEL;
 	wid.type = WID_CHAR;
@@ -1984,12 +1966,10 @@ static s32 Handle_GetChnl(struct wilc_vif *vif)
 				      wilc_get_vif_idx(vif));
 
 	if (result) {
-		PRINT_ER("Failed to get channel number\n");
+		netdev_err(vif->ndev, "Failed to get channel number\n");
 		result = -EFAULT;
 	}
 
-	up(&hif_drv->sem_get_chnl);
-
 	return result;
 }
 
@@ -2006,7 +1986,7 @@ static void Handle_GetRssi(struct wilc_vif *vif)
 	result = wilc_send_config_pkt(vif, GET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result) {
-		PRINT_ER("Failed to get RSSI value\n");
+		netdev_err(vif->ndev, "Failed to get RSSI value\n");
 		result = -EFAULT;
 	}
 
@@ -2017,7 +1997,6 @@ static void Handle_GetLinkspeed(struct wilc_vif *vif)
 {
 	s32 result = 0;
 	struct wid wid;
-	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	link_speed = 0;
 
@@ -2029,11 +2008,10 @@ static void Handle_GetLinkspeed(struct wilc_vif *vif)
 	result = wilc_send_config_pkt(vif, GET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result) {
-		PRINT_ER("Failed to get LINKSPEED value\n");
+		netdev_err(vif->ndev, "Failed to get LINKSPEED value\n");
 		result = -EFAULT;
 	}
 
-	up(&hif_drv->sem_get_link_speed);
 }
 
 static s32 Handle_GetStatistics(struct wilc_vif *vif,
@@ -2077,7 +2055,7 @@ static s32 Handle_GetStatistics(struct wilc_vif *vif,
 				      wilc_get_vif_idx(vif));
 
 	if (result)
-		PRINT_ER("Failed to send scan parameters config packet\n");
+		netdev_err(vif->ndev, "Failed to send scan parameters\n");
 
 	if (pstrStatistics->link_speed > TCP_ACK_FILTER_LINK_SPEED_THRESH &&
 	    pstrStatistics->link_speed != DEFAULT_LINK_SPEED)
@@ -2106,13 +2084,11 @@ static s32 Handle_Get_InActiveTime(struct wilc_vif *vif,
 	stamac = wid.val;
 	memcpy(stamac, strHostIfStaInactiveT->mac, ETH_ALEN);
 
-	PRINT_D(CFG80211_DBG, "SETING STA inactive time\n");
-
 	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 
 	if (result) {
-		PRINT_ER("Failed to SET incative time\n");
+		netdev_err(vif->ndev, "Failed to SET incative time\n");
 		return -EFAULT;
 	}
 
@@ -2125,12 +2101,10 @@ static s32 Handle_Get_InActiveTime(struct wilc_vif *vif,
 				      wilc_get_vif_idx(vif));
 
 	if (result) {
-		PRINT_ER("Failed to get incative time\n");
+		netdev_err(vif->ndev, "Failed to get incative time\n");
 		return -EFAULT;
 	}
 
-	PRINT_D(CFG80211_DBG, "Getting inactive time : %d\n", inactive_time);
-
 	up(&hif_drv->sem_inactive_time);
 
 	return result;
@@ -2181,7 +2155,7 @@ static void Handle_AddBeacon(struct wilc_vif *vif,
 	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result)
-		PRINT_ER("Failed to send add beacon config packet\n");
+		netdev_err(vif->ndev, "Failed to send add beacon\n");
 
 ERRORHANDLER:
 	kfree(wid.val);
@@ -2208,7 +2182,7 @@ static void Handle_DelBeacon(struct wilc_vif *vif)
 	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result)
-		PRINT_ER("Failed to send delete beacon config packet\n");
+		netdev_err(vif->ndev, "Failed to send delete beacon\n");
 }
 
 static u32 WILC_HostIf_PackStaParam(u8 *pu8Buffer,
@@ -2279,7 +2253,7 @@ static void Handle_AddStation(struct wilc_vif *vif,
 	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result != 0)
-		PRINT_ER("Failed to send add station config packet\n");
+		netdev_err(vif->ndev, "Failed to send add station\n");
 
 ERRORHANDLER:
 	kfree(pstrStationParam->rates);
@@ -2319,7 +2293,7 @@ static void Handle_DelAllSta(struct wilc_vif *vif,
 	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result)
-		PRINT_ER("Failed to send add station config packet\n");
+		netdev_err(vif->ndev, "Failed to send add station\n");
 
 ERRORHANDLER:
 	kfree(wid.val);
@@ -2349,7 +2323,7 @@ static void Handle_DelStation(struct wilc_vif *vif,
 	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result)
-		PRINT_ER("Failed to send add station config packet\n");
+		netdev_err(vif->ndev, "Failed to send add station\n");
 
 ERRORHANDLER:
 	kfree(wid.val);
@@ -2376,7 +2350,7 @@ static void Handle_EditStation(struct wilc_vif *vif,
 	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result)
-		PRINT_ER("Failed to send edit station config packet\n");
+		netdev_err(vif->ndev, "Failed to send edit station\n");
 
 ERRORHANDLER:
 	kfree(pstrStationParam->rates);
@@ -2432,7 +2406,7 @@ static int Handle_RemainOnChan(struct wilc_vif *vif,
 	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result != 0)
-		PRINT_ER("Failed to set remain on channel\n");
+		netdev_err(vif->ndev, "Failed to set remain on channel\n");
 
 ERRORHANDLER:
 	{
@@ -2476,7 +2450,7 @@ static int Handle_RegisterFrame(struct wilc_vif *vif,
 	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result) {
-		PRINT_ER("Failed to frame register config packet\n");
+		netdev_err(vif->ndev, "Failed to frame register\n");
 		result = -EINVAL;
 	}
 
@@ -2499,7 +2473,7 @@ static u32 Handle_ListenStateExpired(struct wilc_vif *vif,
 		wid.val = kmalloc(wid.size, GFP_KERNEL);
 
 		if (!wid.val) {
-			PRINT_ER("Failed to allocate memory\n");
+			netdev_err(vif->ndev, "Failed to allocate memory\n");
 			return -ENOMEM;
 		}
 
@@ -2509,7 +2483,7 @@ static u32 Handle_ListenStateExpired(struct wilc_vif *vif,
 		result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 					      wilc_get_vif_idx(vif));
 		if (result != 0) {
-			PRINT_ER("Failed to set remain on channel\n");
+			netdev_err(vif->ndev, "Failed to set remain channel\n");
 			goto _done_;
 		}
 
@@ -2542,7 +2516,7 @@ static void ListenTimerCB(unsigned long arg)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc_mq_send fail\n");
+		netdev_err(vif->ndev, "wilc_mq_send fail\n");
 }
 
 static void Handle_PowerManagement(struct wilc_vif *vif,
@@ -2565,7 +2539,7 @@ static void Handle_PowerManagement(struct wilc_vif *vif,
 	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result)
-		PRINT_ER("Failed to send power management config packet\n");
+		netdev_err(vif->ndev, "Failed to send power management\n");
 }
 
 static void Handle_SetMulticastFilter(struct wilc_vif *vif,
@@ -2600,43 +2574,12 @@ static void Handle_SetMulticastFilter(struct wilc_vif *vif,
 	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				      wilc_get_vif_idx(vif));
 	if (result)
-		PRINT_ER("Failed to send setup multicast config packet\n");
+		netdev_err(vif->ndev, "Failed to send setup multicast\n");
 
 ERRORHANDLER:
 	kfree(wid.val);
 }
 
-static s32 Handle_DelAllRxBASessions(struct wilc_vif *vif,
-				     struct ba_session_info *strHostIfBASessionInfo)
-{
-	s32 result = 0;
-	struct wid wid;
-	char *ptr = NULL;
-
-	wid.id = (u16)WID_DEL_ALL_RX_BA;
-	wid.type = WID_STR;
-	wid.val = kmalloc(BLOCK_ACK_REQ_SIZE, GFP_KERNEL);
-	wid.size = BLOCK_ACK_REQ_SIZE;
-	ptr = wid.val;
-	*ptr++ = 0x14;
-	*ptr++ = 0x3;
-	*ptr++ = 0x2;
-	memcpy(ptr, strHostIfBASessionInfo->bssid, ETH_ALEN);
-	ptr += ETH_ALEN;
-	*ptr++ = strHostIfBASessionInfo->tid;
-	*ptr++ = 0;
-	*ptr++ = 32;
-
-	result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
-				      wilc_get_vif_idx(vif));
-
-	kfree(wid.val);
-
-	up(&hif_sema_wait_response);
-
-	return result;
-}
-
 static void handle_set_tx_pwr(struct wilc_vif *vif, u8 tx_pwr)
 {
 	int ret;
@@ -2854,10 +2797,6 @@ static int hostIFthread(void *pvArg)
 			Handle_SetMulticastFilter(msg.vif, &msg.body.multicast_info);
 			break;
 
-		case HOST_IF_MSG_DEL_ALL_RX_BA_SESSIONS:
-			Handle_DelAllRxBASessions(msg.vif, &msg.body.session_info);
-			break;
-
 		case HOST_IF_MSG_DEL_ALL_STA:
 			Handle_DelAllSta(msg.vif, &msg.body.del_all_sta_info);
 			break;
@@ -2870,7 +2809,7 @@ static int hostIFthread(void *pvArg)
 			handle_get_tx_pwr(msg.vif, &msg.body.tx_power.tx_pwr);
 			break;
 		default:
-			PRINT_ER("[Host Interface] undefined Received Msg ID\n");
+			netdev_err(vif->ndev, "[Host Interface] undefined\n");
 			break;
 		}
 	}
@@ -2923,7 +2862,7 @@ int wilc_remove_wep_key(struct wilc_vif *vif, u8 index)
 
 	if (!hif_drv) {
 		result = -EFAULT;
-		PRINT_ER("Failed to send setup multicast config packet\n");
+		netdev_err(vif->ndev, "Failed to send setup multicast\n");
 		return result;
 	}
 
@@ -2937,7 +2876,7 @@ int wilc_remove_wep_key(struct wilc_vif *vif, u8 index)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("Error in sending message queue : Request to remove WEP key\n");
+		netdev_err(vif->ndev, "Request to remove WEP key\n");
 	down(&hif_drv->sem_test_key_block);
 
 	return result;
@@ -2951,7 +2890,7 @@ int wilc_set_wep_default_keyid(struct wilc_vif *vif, u8 index)
 
 	if (!hif_drv) {
 		result = -EFAULT;
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return result;
 	}
 
@@ -2965,7 +2904,7 @@ int wilc_set_wep_default_keyid(struct wilc_vif *vif, u8 index)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("Error in sending message queue : Default key index\n");
+		netdev_err(vif->ndev, "Default key index\n");
 	down(&hif_drv->sem_test_key_block);
 
 	return result;
@@ -2979,7 +2918,7 @@ int wilc_add_wep_key_bss_sta(struct wilc_vif *vif, const u8 *key, u8 len,
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -2998,7 +2937,7 @@ int wilc_add_wep_key_bss_sta(struct wilc_vif *vif, const u8 *key, u8 len,
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("Error in sending message queue :WEP Key\n");
+		netdev_err(vif->ndev, "STA - WEP Key\n");
 	down(&hif_drv->sem_test_key_block);
 
 	return result;
@@ -3010,19 +2949,14 @@ int wilc_add_wep_key_bss_ap(struct wilc_vif *vif, const u8 *key, u8 len,
 	int result = 0;
 	struct host_if_msg msg;
 	struct host_if_drv *hif_drv = vif->hif_drv;
-	int i;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
 	memset(&msg, 0, sizeof(struct host_if_msg));
 
-	if (INFO) {
-		for (i = 0; i < len; i++)
-			PRINT_INFO(HOSTAPD_DBG, "KEY is %x\n", key[i]);
-	}
 	msg.id = HOST_IF_MSG_KEY;
 	msg.body.key_info.type = WEP;
 	msg.body.key_info.action = ADDKEY_AP;
@@ -3039,7 +2973,7 @@ int wilc_add_wep_key_bss_ap(struct wilc_vif *vif, const u8 *key, u8 len,
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 
 	if (result)
-		PRINT_ER("Error in sending message queue :WEP Key\n");
+		netdev_err(vif->ndev, "AP - WEP Key\n");
 	down(&hif_drv->sem_test_key_block);
 
 	return result;
@@ -3053,10 +2987,9 @@ int wilc_add_ptk(struct wilc_vif *vif, const u8 *ptk, u8 ptk_key_len,
 	struct host_if_msg msg;
 	struct host_if_drv *hif_drv = vif->hif_drv;
 	u8 key_len = ptk_key_len;
-	int i;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -3081,20 +3014,11 @@ int wilc_add_ptk(struct wilc_vif *vif, const u8 *ptk, u8 ptk_key_len,
 	if (!msg.body.key_info.attr.wpa.key)
 		return -ENOMEM;
 
-	if (rx_mic) {
+	if (rx_mic)
 		memcpy(msg.body.key_info.attr.wpa.key + 16, rx_mic, RX_MIC_KEY_LEN);
-		if (INFO) {
-			for (i = 0; i < RX_MIC_KEY_LEN; i++)
-				PRINT_INFO(CFG80211_DBG, "PairwiseRx[%d] = %x\n", i, rx_mic[i]);
-		}
-	}
-	if (tx_mic) {
+
+	if (tx_mic)
 		memcpy(msg.body.key_info.attr.wpa.key + 24, tx_mic, TX_MIC_KEY_LEN);
-		if (INFO) {
-			for (i = 0; i < TX_MIC_KEY_LEN; i++)
-				PRINT_INFO(CFG80211_DBG, "PairwiseTx[%d] = %x\n", i, tx_mic[i]);
-		}
-	}
 
 	msg.body.key_info.attr.wpa.key_len = key_len;
 	msg.body.key_info.attr.wpa.mac_addr = mac_addr;
@@ -3104,7 +3028,7 @@ int wilc_add_ptk(struct wilc_vif *vif, const u8 *ptk, u8 ptk_key_len,
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 
 	if (result)
-		PRINT_ER("Error in sending message queue:  PTK Key\n");
+		netdev_err(vif->ndev, "PTK Key\n");
 
 	down(&hif_drv->sem_test_key_block);
 
@@ -3122,7 +3046,7 @@ int wilc_add_rx_gtk(struct wilc_vif *vif, const u8 *rx_gtk, u8 gtk_key_len,
 	u8 key_len = gtk_key_len;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 	memset(&msg, 0, sizeof(struct host_if_msg));
@@ -3172,7 +3096,7 @@ int wilc_add_rx_gtk(struct wilc_vif *vif, const u8 *rx_gtk, u8 gtk_key_len,
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("Error in sending message queue:  RX GTK\n");
+		netdev_err(vif->ndev, "RX GTK\n");
 
 	down(&hif_drv->sem_test_key_block);
 
@@ -3188,7 +3112,7 @@ int wilc_set_pmkid_info(struct wilc_vif *vif,
 	int i;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -3208,7 +3132,7 @@ int wilc_set_pmkid_info(struct wilc_vif *vif,
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER(" Error in sending messagequeue: PMKID Info\n");
+		netdev_err(vif->ndev, "PMKID Info\n");
 
 	return result;
 }
@@ -3226,7 +3150,7 @@ int wilc_get_mac_address(struct wilc_vif *vif, u8 *mac_addr)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
-		PRINT_ER("Failed to send get mac address\n");
+		netdev_err(vif->ndev, "Failed to send get mac address\n");
 		return -EFAULT;
 	}
 
@@ -3245,12 +3169,12 @@ int wilc_set_join_req(struct wilc_vif *vif, u8 *bssid, const u8 *ssid,
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv || !connect_result) {
-		PRINT_ER("Driver is null\n");
+		netdev_err(vif->ndev, "Driver is null\n");
 		return -EFAULT;
 	}
 
 	if (!join_params) {
-		PRINT_ER("Unable to Join - JoinParams is NULL\n");
+		netdev_err(vif->ndev, "Unable to Join - JoinParams is NULL\n");
 		return -EFAULT;
 	}
 
@@ -3290,7 +3214,7 @@ int wilc_set_join_req(struct wilc_vif *vif, u8 *bssid, const u8 *ssid,
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
-		PRINT_ER("Failed to send message queue: Set join request\n");
+		netdev_err(vif->ndev, "send message: Set join request\n");
 		return -EFAULT;
 	}
 
@@ -3308,7 +3232,7 @@ int wilc_disconnect(struct wilc_vif *vif, u16 reason_code)
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("Driver is null\n");
+		netdev_err(vif->ndev, "Driver is null\n");
 		return -EFAULT;
 	}
 
@@ -3319,7 +3243,7 @@ int wilc_disconnect(struct wilc_vif *vif, u16 reason_code)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("Failed to send message queue: disconnect\n");
+		netdev_err(vif->ndev, "Failed to send message: disconnect\n");
 
 	down(&hif_drv->sem_test_disconn_block);
 
@@ -3336,7 +3260,7 @@ static s32 host_int_get_assoc_res_info(struct wilc_vif *vif,
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("Driver is null\n");
+		netdev_err(vif->ndev, "Driver is null\n");
 		return -EFAULT;
 	}
 
@@ -3349,10 +3273,10 @@ static s32 host_int_get_assoc_res_info(struct wilc_vif *vif,
 				      wilc_get_vif_idx(vif));
 	if (result) {
 		*pu32RcvdAssocRespInfoLen = 0;
-		PRINT_ER("Failed to send association response config packet\n");
+		netdev_err(vif->ndev, "Failed to send association response\n");
 		return -EINVAL;
 	}
-	
+
 	*pu32RcvdAssocRespInfoLen = wid.size;
 	return result;
 }
@@ -3364,7 +3288,7 @@ int wilc_set_mac_chnl_num(struct wilc_vif *vif, u8 channel)
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -3375,7 +3299,7 @@ int wilc_set_mac_chnl_num(struct wilc_vif *vif, u8 channel)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
-		PRINT_ER("wilc mq send fail\n");
+		netdev_err(vif->ndev, "wilc mq send fail\n");
 		return -EINVAL;
 	}
 
@@ -3395,7 +3319,7 @@ int wilc_set_wfi_drv_handler(struct wilc_vif *vif, int index, u8 mac_idx)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
-		PRINT_ER("wilc mq send fail\n");
+		netdev_err(vif->ndev, "wilc mq send fail\n");
 		result = -EINVAL;
 	}
 
@@ -3414,7 +3338,7 @@ int wilc_set_operation_mode(struct wilc_vif *vif, u32 mode)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
-		PRINT_ER("wilc mq send fail\n");
+		netdev_err(vif->ndev, "wilc mq send fail\n");
 		result = -EINVAL;
 	}
 
@@ -3429,7 +3353,7 @@ s32 wilc_get_inactive_time(struct wilc_vif *vif, const u8 *mac,
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -3441,7 +3365,7 @@ s32 wilc_get_inactive_time(struct wilc_vif *vif, const u8 *mac,
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("Failed to send get host channel param's message queue ");
+		netdev_err(vif->ndev, "Failed to send get host ch param\n");
 
 	down(&hif_drv->sem_inactive_time);
 
@@ -3462,14 +3386,14 @@ int wilc_get_rssi(struct wilc_vif *vif, s8 *rssi_level)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
-		PRINT_ER("Failed to send get host channel param's message queue ");
+		netdev_err(vif->ndev, "Failed to send get host ch param\n");
 		return -EFAULT;
 	}
 
 	down(&hif_drv->sem_get_rssi);
 
 	if (!rssi_level) {
-		PRINT_ER("RSS pointer value is null");
+		netdev_err(vif->ndev, "RSS pointer value is null\n");
 		return -EFAULT;
 	}
 
@@ -3490,7 +3414,7 @@ int wilc_get_statistics(struct wilc_vif *vif, struct rf_info *stats)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
-		PRINT_ER("Failed to send get host channel param's message queue ");
+		netdev_err(vif->ndev, "Failed to send get host channel\n");
 		return -EFAULT;
 	}
 
@@ -3510,7 +3434,7 @@ int wilc_scan(struct wilc_vif *vif, u8 scan_source, u8 scan_type,
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv || !scan_result) {
-		PRINT_ER("hif_drv or scan_result = NULL\n");
+		netdev_err(vif->ndev, "hif_drv or scan_result = NULL\n");
 		return -EFAULT;
 	}
 
@@ -3543,7 +3467,7 @@ int wilc_scan(struct wilc_vif *vif, u8 scan_source, u8 scan_type,
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
-		PRINT_ER("Error in sending message queue\n");
+		netdev_err(vif->ndev, "Error in sending message queue\n");
 		return -EINVAL;
 	}
 
@@ -3555,20 +3479,20 @@ int wilc_scan(struct wilc_vif *vif, u8 scan_source, u8 scan_type,
 }
 
 int wilc_hif_set_cfg(struct wilc_vif *vif,
-		     struct cfg_param_val *cfg_param)
+		     struct cfg_param_attr *cfg_param)
 {
 	int result = 0;
 	struct host_if_msg msg;
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("hif_drv NULL\n");
+		netdev_err(vif->ndev, "hif_drv NULL\n");
 		return -EFAULT;
 	}
 
 	memset(&msg, 0, sizeof(struct host_if_msg));
 	msg.id = HOST_IF_MSG_CFG_PARAMS;
-	msg.body.cfg_info.cfg_attr_info = *cfg_param;
+	msg.body.cfg_info = *cfg_param;
 	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
@@ -3581,7 +3505,7 @@ static void GetPeriodicRSSI(unsigned long arg)
 	struct wilc_vif *vif = (struct wilc_vif *)arg;
 
 	if (!vif->hif_drv) {
-		PRINT_ER("Driver handler is NULL\n");
+		netdev_err(vif->ndev, "Driver handler is NULL\n");
 		return;
 	}
 
@@ -3630,15 +3554,13 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)
 	sema_init(&hif_drv->sem_test_key_block, 0);
 	sema_init(&hif_drv->sem_test_disconn_block, 0);
 	sema_init(&hif_drv->sem_get_rssi, 0);
-	sema_init(&hif_drv->sem_get_link_speed, 0);
-	sema_init(&hif_drv->sem_get_chnl, 0);
 	sema_init(&hif_drv->sem_inactive_time, 0);
 
 	if (clients_count == 0)	{
 		result = wilc_mq_create(&hif_msg_q);
 
 		if (result < 0) {
-			PRINT_ER("Failed to creat MQ\n");
+			netdev_err(vif->ndev, "Failed to creat MQ\n");
 			goto _fail_;
 		}
 
@@ -3646,7 +3568,7 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)
 						 "WILC_kthread");
 
 		if (IS_ERR(hif_thread_handler)) {
-			PRINT_ER("Failed to creat Thread\n");
+			netdev_err(vif->ndev, "Failed to creat Thread\n");
 			result = -EFAULT;
 			goto _fail_mq_;
 		}
@@ -3690,7 +3612,7 @@ int wilc_deinit(struct wilc_vif *vif)
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv)	{
-		PRINT_ER("hif_drv = NULL\n");
+		netdev_err(vif->ndev, "hif_drv = NULL\n");
 		return -EFAULT;
 	}
 
@@ -3725,7 +3647,7 @@ int wilc_deinit(struct wilc_vif *vif)
 
 		result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 		if (result != 0)
-			PRINT_ER("Error in sending deinit's message queue message function: Error(%d)\n", result);
+			netdev_err(vif->ndev, "deinit : Error(%d)\n", result);
 
 		down(&hif_sema_thread);
 
@@ -3756,7 +3678,7 @@ void wilc_network_info_received(struct wilc *wilc, u8 *pu8Buffer,
 	hif_drv = vif->hif_drv;
 
 	if (!hif_drv || hif_drv == terminated_handle)	{
-		PRINT_ER("NetworkInfo received but driver not init[%p]\n", hif_drv);
+		netdev_err(vif->ndev, "driver not init[%p]\n", hif_drv);
 		return;
 	}
 
@@ -3771,7 +3693,7 @@ void wilc_network_info_received(struct wilc *wilc, u8 *pu8Buffer,
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("Error in sending network info message queue message parameters: Error(%d)\n", result);
+		netdev_err(vif->ndev, "message parameters (%d)\n", result);
 }
 
 void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *pu8Buffer,
@@ -3800,7 +3722,7 @@ void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *pu8Buffer,
 	}
 
 	if (!hif_drv->usr_conn_req.conn_result) {
-		PRINT_ER("Received mac status is not needed when there is no current Connect Reques\n");
+		netdev_err(vif->ndev, "there is no current Connect Request\n");
 		up(&hif_sema_deinit);
 		return;
 	}
@@ -3816,7 +3738,7 @@ void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *pu8Buffer,
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("Error in sending message queue asynchronous message info: Error(%d)\n", result);
+		netdev_err(vif->ndev, "synchronous info (%d)\n", result);
 
 	up(&hif_sema_deinit);
 }
@@ -3847,7 +3769,7 @@ void wilc_scan_complete_received(struct wilc *wilc, u8 *pu8Buffer,
 
 		result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 		if (result)
-			PRINT_ER("Error in sending message queue scan complete parameters: Error(%d)\n", result);
+			netdev_err(vif->ndev, "complete param (%d)\n", result);
 	}
 }
 
@@ -3862,7 +3784,7 @@ int wilc_remain_on_channel(struct wilc_vif *vif, u32 session_id,
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -3879,7 +3801,7 @@ int wilc_remain_on_channel(struct wilc_vif *vif, u32 session_id,
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc mq send fail\n");
+		netdev_err(vif->ndev, "wilc mq send fail\n");
 
 	return result;
 }
@@ -3891,7 +3813,7 @@ int wilc_listen_state_expired(struct wilc_vif *vif, u32 session_id)
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -3904,7 +3826,7 @@ int wilc_listen_state_expired(struct wilc_vif *vif, u32 session_id)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc mq send fail\n");
+		netdev_err(vif->ndev, "wilc mq send fail\n");
 
 	return result;
 }
@@ -3916,7 +3838,7 @@ int wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg)
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -3941,7 +3863,7 @@ int wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc mq send fail\n");
+		netdev_err(vif->ndev, "wilc mq send fail\n");
 
 	return result;
 }
@@ -3955,7 +3877,7 @@ int wilc_add_beacon(struct wilc_vif *vif, u32 interval, u32 dtim_period,
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -3985,7 +3907,7 @@ int wilc_add_beacon(struct wilc_vif *vif, u32 interval, u32 dtim_period,
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc mq send fail\n");
+		netdev_err(vif->ndev, "wilc mq send fail\n");
 
 ERRORHANDLER:
 	if (result) {
@@ -4004,7 +3926,7 @@ int wilc_del_beacon(struct wilc_vif *vif)
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -4013,7 +3935,7 @@ int wilc_del_beacon(struct wilc_vif *vif)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc_mq_send fail\n");
+		netdev_err(vif->ndev, "wilc_mq_send fail\n");
 
 	return result;
 }
@@ -4026,7 +3948,7 @@ int wilc_add_station(struct wilc_vif *vif, struct add_sta_param *sta_param)
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -4046,7 +3968,7 @@ int wilc_add_station(struct wilc_vif *vif, struct add_sta_param *sta_param)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc_mq_send fail\n");
+		netdev_err(vif->ndev, "wilc_mq_send fail\n");
 	return result;
 }
 
@@ -4058,7 +3980,7 @@ int wilc_del_station(struct wilc_vif *vif, const u8 *mac_addr)
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -4074,7 +3996,7 @@ int wilc_del_station(struct wilc_vif *vif, const u8 *mac_addr)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc_mq_send fail\n");
+		netdev_err(vif->ndev, "wilc_mq_send fail\n");
 	return result;
 }
 
@@ -4089,7 +4011,7 @@ int wilc_del_allstation(struct wilc_vif *vif, u8 mac_addr[][ETH_ALEN])
 	u8 assoc_sta = 0;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -4101,26 +4023,17 @@ int wilc_del_allstation(struct wilc_vif *vif, u8 mac_addr[][ETH_ALEN])
 	for (i = 0; i < MAX_NUM_STA; i++) {
 		if (memcmp(mac_addr[i], zero_addr, ETH_ALEN)) {
 			memcpy(del_all_sta_info->del_all_sta[i], mac_addr[i], ETH_ALEN);
-			PRINT_D(CFG80211_DBG, "BSSID = %x%x%x%x%x%x\n",
-				del_all_sta_info->del_all_sta[i][0],
-				del_all_sta_info->del_all_sta[i][1],
-				del_all_sta_info->del_all_sta[i][2],
-				del_all_sta_info->del_all_sta[i][3],
-				del_all_sta_info->del_all_sta[i][4],
-				del_all_sta_info->del_all_sta[i][5]);
 			assoc_sta++;
 		}
 	}
-	if (!assoc_sta) {
-		PRINT_D(CFG80211_DBG, "NO ASSOCIATED STAS\n");
+	if (!assoc_sta)
 		return result;
-	}
 
 	del_all_sta_info->assoc_sta = assoc_sta;
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 
 	if (result)
-		PRINT_ER("wilc_mq_send fail\n");
+		netdev_err(vif->ndev, "wilc_mq_send fail\n");
 
 	down(&hif_sema_wait_response);
 
@@ -4136,7 +4049,7 @@ int wilc_edit_station(struct wilc_vif *vif,
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -4156,7 +4069,7 @@ int wilc_edit_station(struct wilc_vif *vif,
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc_mq_send fail\n");
+		netdev_err(vif->ndev, "wilc_mq_send fail\n");
 
 	return result;
 }
@@ -4169,7 +4082,7 @@ int wilc_set_power_mgmt(struct wilc_vif *vif, bool enabled, u32 timeout)
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -4186,7 +4099,7 @@ int wilc_set_power_mgmt(struct wilc_vif *vif, bool enabled, u32 timeout)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc_mq_send fail\n");
+		netdev_err(vif->ndev, "wilc_mq_send fail\n");
 	return result;
 }
 
@@ -4199,7 +4112,7 @@ int wilc_setup_multicast_filter(struct wilc_vif *vif, bool enabled,
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -4213,7 +4126,7 @@ int wilc_setup_multicast_filter(struct wilc_vif *vif, bool enabled,
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc_mq_send fail\n");
+		netdev_err(vif->ndev, "wilc_mq_send fail\n");
 	return result;
 }
 
@@ -4378,7 +4291,7 @@ int wilc_setup_ipaddress(struct wilc_vif *vif, u8 *ip_addr, u8 idx)
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -4392,7 +4305,7 @@ int wilc_setup_ipaddress(struct wilc_vif *vif, u8 *ip_addr, u8 idx)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc_mq_send fail\n");
+		netdev_err(vif->ndev, "wilc_mq_send fail\n");
 
 	return result;
 }
@@ -4404,7 +4317,7 @@ static int host_int_get_ipaddress(struct wilc_vif *vif, u8 *ip_addr, u8 idx)
 	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
+		netdev_err(vif->ndev, "driver is null\n");
 		return -EFAULT;
 	}
 
@@ -4418,7 +4331,7 @@ static int host_int_get_ipaddress(struct wilc_vif *vif, u8 *ip_addr, u8 idx)
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
-		PRINT_ER("wilc_mq_send fail\n");
+		netdev_err(vif->ndev, "wilc_mq_send fail\n");
 
 	return result;
 }
diff --git a/drivers/staging/wilc1000/host_interface.h b/drivers/staging/wilc1000/host_interface.h
index 5e65f2c..795c18c 100644
--- a/drivers/staging/wilc1000/host_interface.h
+++ b/drivers/staging/wilc1000/host_interface.h
@@ -96,7 +96,7 @@ enum CURRENT_TXRATE {
 	MBPS_54		= 54
 };
 
-struct cfg_param_val {
+struct cfg_param_attr {
 	u32 flag;
 	u8 ht_enable;
 	u8 bss_type;
@@ -172,9 +172,9 @@ typedef void (*wilc_scan_result)(enum scan_event, struct network_info *,
 				 void *, void *);
 
 typedef void (*wilc_connect_result)(enum conn_event,
-				     tstrConnectInfo *,
+				     struct connect_info *,
 				     u8,
-				     tstrDisconnectNotifInfo *,
+				     struct disconnect_info *,
 				     void *);
 
 typedef void (*wilc_remain_on_chan_expired)(void *, u32);
@@ -272,14 +272,12 @@ struct host_if_drv {
 	enum host_if_state hif_state;
 
 	u8 assoc_bssid[ETH_ALEN];
-	struct cfg_param_val cfg_values;
+	struct cfg_param_attr cfg_values;
 
 	struct semaphore sem_cfg_values;
 	struct semaphore sem_test_key_block;
 	struct semaphore sem_test_disconn_block;
 	struct semaphore sem_get_rssi;
-	struct semaphore sem_get_link_speed;
-	struct semaphore sem_get_chnl;
 	struct semaphore sem_inactive_time;
 
 	struct timer_list scan_timer;
@@ -338,7 +336,7 @@ int wilc_scan(struct wilc_vif *vif, u8 scan_source, u8 scan_type,
 	      size_t ies_len, wilc_scan_result scan_result, void *user_arg,
 	      struct hidden_network *hidden_network);
 int wilc_hif_set_cfg(struct wilc_vif *vif,
-		     struct cfg_param_val *cfg_param);
+		     struct cfg_param_attr *cfg_param);
 int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler);
 int wilc_deinit(struct wilc_vif *vif);
 int wilc_add_beacon(struct wilc_vif *vif, u32 interval, u32 dtim_period,
diff --git a/drivers/staging/wilc1000/linux_mon.c b/drivers/staging/wilc1000/linux_mon.c
index 21f35d7..7d9e5de 100644
--- a/drivers/staging/wilc1000/linux_mon.c
+++ b/drivers/staging/wilc1000/linux_mon.c
@@ -7,7 +7,6 @@
  *  @version	1.0
  */
 #include "wilc_wfi_cfgoperations.h"
-#include "linux_wlan_common.h"
 #include "wilc_wlan_if.h"
 #include "wilc_wlan.h"
 
@@ -52,15 +51,11 @@ void WILC_WFI_monitor_rx(u8 *buff, u32 size)
 	struct wilc_wfi_radiotap_hdr *hdr;
 	struct wilc_wfi_radiotap_cb_hdr *cb_hdr;
 
-	PRINT_INFO(HOSTAPD_DBG, "In monitor interface receive function\n");
-
 	if (!wilc_wfi_mon)
 		return;
 
-	if (!netif_running(wilc_wfi_mon)) {
-		PRINT_INFO(HOSTAPD_DBG, "Monitor interface already RUNNING\n");
+	if (!netif_running(wilc_wfi_mon))
 		return;
-	}
 
 	/* Get WILC header */
 	memcpy(&header, (buff - HOST_HDR_OFFSET), HOST_HDR_OFFSET);
@@ -73,10 +68,8 @@ void WILC_WFI_monitor_rx(u8 *buff, u32 size)
 		/* hostapd callback mgmt frame */
 
 		skb = dev_alloc_skb(size + sizeof(struct wilc_wfi_radiotap_cb_hdr));
-		if (!skb) {
-			PRINT_INFO(HOSTAPD_DBG, "Monitor if : No memory to allocate skb");
+		if (!skb)
 			return;
-		}
 
 		memcpy(skb_put(skb, size), buff, size);
 
@@ -103,20 +96,16 @@ void WILC_WFI_monitor_rx(u8 *buff, u32 size)
 	} else {
 		skb = dev_alloc_skb(size + sizeof(struct wilc_wfi_radiotap_hdr));
 
-		if (!skb) {
-			PRINT_INFO(HOSTAPD_DBG, "Monitor if : No memory to allocate skb");
+		if (!skb)
 			return;
-		}
 
 		memcpy(skb_put(skb, size), buff, size);
 		hdr = (struct wilc_wfi_radiotap_hdr *)skb_push(skb, sizeof(*hdr));
 		memset(hdr, 0, sizeof(struct wilc_wfi_radiotap_hdr));
 		hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */
 		hdr->hdr.it_len = cpu_to_le16(sizeof(struct wilc_wfi_radiotap_hdr));
-		PRINT_INFO(HOSTAPD_DBG, "Radiotap len %d\n", hdr->hdr.it_len);
 		hdr->hdr.it_present = cpu_to_le32
 				(1 << IEEE80211_RADIOTAP_RATE);                   /* | */
-		PRINT_INFO(HOSTAPD_DBG, "Presentflags %d\n", hdr->hdr.it_present);
 		hdr->rate = 5; /* txrate->bitrate / 5; */
 	}
 
@@ -138,14 +127,6 @@ struct tx_complete_mon_data {
 static void mgmt_tx_complete(void *priv, int status)
 {
 	struct tx_complete_mon_data *pv_data = priv;
-	u8 *buf =  pv_data->buff;
-
-	if (status == 1) {
-		if (INFO || buf[0] == 0x10 || buf[0] == 0xb0)
-			PRINT_INFO(HOSTAPD_DBG, "Packet sent successfully - Size = %d - Address = %p.\n", pv_data->size, pv_data->buff);
-	} else {
-		PRINT_INFO(HOSTAPD_DBG, "Couldn't send packet - Size = %d - Address = %p.\n", pv_data->size, pv_data->buff);
-	}
 
 	/* incase of fully hosting mode, the freeing will be done in response to the cfg packet */
 	kfree(pv_data->buff);
@@ -157,10 +138,8 @@ static int mon_mgmt_tx(struct net_device *dev, const u8 *buf, size_t len)
 {
 	struct tx_complete_mon_data *mgmt_tx = NULL;
 
-	if (!dev) {
-		PRINT_D(HOSTAPD_DBG, "ERROR: dev == NULL\n");
+	if (!dev)
 		return -EFAULT;
-	}
 
 	netif_stop_queue(dev);
 	mgmt_tx = kmalloc(sizeof(*mgmt_tx), GFP_ATOMIC);
@@ -195,7 +174,7 @@ static int mon_mgmt_tx(struct net_device *dev, const u8 *buf, size_t len)
 static netdev_tx_t WILC_WFI_mon_xmit(struct sk_buff *skb,
 				     struct net_device *dev)
 {
-	u32 rtap_len, i, ret = 0;
+	u32 rtap_len, ret = 0;
 	struct WILC_WFI_mon_priv  *mon_priv;
 
 	struct sk_buff *skb2;
@@ -205,30 +184,14 @@ static netdev_tx_t WILC_WFI_mon_xmit(struct sk_buff *skb,
 		return -EFAULT;
 
 	mon_priv = netdev_priv(wilc_wfi_mon);
-
-	if (!mon_priv) {
-		PRINT_ER("Monitor interface private structure is NULL\n");
+	if (!mon_priv)
 		return -EFAULT;
-	}
-
 	rtap_len = ieee80211_get_radiotap_len(skb->data);
-	if (skb->len < rtap_len) {
-		PRINT_ER("Error in radiotap header\n");
+	if (skb->len < rtap_len)
 		return -1;
-	}
-	/* skip the radiotap header */
-	PRINT_INFO(HOSTAPD_DBG, "Radiotap len: %d\n", rtap_len);
 
-	if (INFO) {
-		for (i = 0; i < rtap_len; i++)
-			PRINT_INFO(HOSTAPD_DBG, "Radiotap_hdr[%d] %02x\n", i, skb->data[i]);
-	}
-	/* Skip the ratio tap header */
 	skb_pull(skb, rtap_len);
 
-	if (skb->data[0] == 0xc0)
-		PRINT_INFO(HOSTAPD_DBG, "%x:%x:%x:%x:%x%x\n", skb->data[4], skb->data[5], skb->data[6], skb->data[7], skb->data[8], skb->data[9]);
-
 	if (skb->data[0] == 0xc0 && (!(memcmp(broadcast, &skb->data[4], 6)))) {
 		skb2 = dev_alloc_skb(skb->len + sizeof(struct wilc_wfi_radiotap_cb_hdr));
 
@@ -261,19 +224,15 @@ static netdev_tx_t WILC_WFI_mon_xmit(struct sk_buff *skb,
 	}
 	skb->dev = mon_priv->real_ndev;
 
-	PRINT_INFO(HOSTAPD_DBG, "Skipping the radiotap header\n");
-
-	/* actual deliver of data is device-specific, and not shown here */
-	PRINT_INFO(HOSTAPD_DBG, "SKB netdevice name = %s\n", skb->dev->name);
-	PRINT_INFO(HOSTAPD_DBG, "MONITOR real dev name = %s\n", mon_priv->real_ndev->name);
-
 	/* Identify if Ethernet or MAC header (data or mgmt) */
 	memcpy(srcAdd, &skb->data[10], 6);
 	memcpy(bssid, &skb->data[16], 6);
 	/* if source address and bssid fields are equal>>Mac header */
 	/*send it to mgmt frames handler */
 	if (!(memcmp(srcAdd, bssid, 6))) {
-		mon_mgmt_tx(mon_priv->real_ndev, skb->data, skb->len);
+		ret = mon_mgmt_tx(mon_priv->real_ndev, skb->data, skb->len);
+		if (ret)
+			netdev_err(dev, "fail to mgmt tx\n");
 		dev_kfree_skb(skb);
 	} else {
 		ret = wilc_mac_xmit(skb, mon_priv->real_ndev);
@@ -302,15 +261,12 @@ struct net_device *WILC_WFI_init_mon_interface(const char *name, struct net_devi
 	struct WILC_WFI_mon_priv *priv;
 
 	/*If monitor interface is already initialized, return it*/
-	if (wilc_wfi_mon) 
+	if (wilc_wfi_mon)
 		return wilc_wfi_mon;
 
 	wilc_wfi_mon = alloc_etherdev(sizeof(struct WILC_WFI_mon_priv));
-	if (!wilc_wfi_mon) {
-		PRINT_ER("failed to allocate memory\n");
+	if (!wilc_wfi_mon)
 		return NULL;
-	}
-
 	wilc_wfi_mon->type = ARPHRD_IEEE80211_RADIOTAP;
 	strncpy(wilc_wfi_mon->name, name, IFNAMSIZ);
 	wilc_wfi_mon->name[IFNAMSIZ - 1] = 0;
@@ -318,14 +274,12 @@ struct net_device *WILC_WFI_init_mon_interface(const char *name, struct net_devi
 
 	ret = register_netdevice(wilc_wfi_mon);
 	if (ret) {
-		PRINT_ER(" register_netdevice failed (%d)\n", ret);
+		netdev_err(real_dev, "register_netdevice failed\n");
 		return NULL;
 	}
 	priv = netdev_priv(wilc_wfi_mon);
-	if (!priv) {
-		PRINT_ER("private structure is NULL\n");
+	if (!priv)
 		return NULL;
-	}
 
 	priv->real_ndev = real_dev;
 
@@ -346,13 +300,10 @@ int WILC_WFI_deinit_mon_interface(void)
 	bool rollback_lock = false;
 
 	if (wilc_wfi_mon) {
-		PRINT_D(HOSTAPD_DBG, "In Deinit monitor interface\n");
-		PRINT_D(HOSTAPD_DBG, "RTNL is being locked\n");
 		if (rtnl_is_locked()) {
 			rtnl_unlock();
 			rollback_lock = true;
 		}
-		PRINT_D(HOSTAPD_DBG, "Unregister netdev\n");
 		unregister_netdev(wilc_wfi_mon);
 
 		if (rollback_lock) {
diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index a731b46..bfa754b 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -1,5 +1,4 @@
 #include "wilc_wfi_cfgoperations.h"
-#include "linux_wlan_common.h"
 #include "wilc_wlan_if.h"
 #include "wilc_wlan.h"
 
@@ -13,7 +12,6 @@
 
 #include <linux/kthread.h>
 #include <linux/firmware.h>
-#include <linux/delay.h>
 
 #include <linux/init.h>
 #include <linux/netdevice.h>
@@ -224,11 +222,6 @@ static void deinit_irq(struct net_device *dev)
 	}
 }
 
-void wilc_dbg(u8 *buff)
-{
-	PRINT_D(INIT_DBG, "%d\n", *buff);
-}
-
 int wilc_lock_timeout(struct wilc *nic, void *vp, u32 timeout)
 {
 	/* FIXME: replace with mutex_lock or wait_for_completion */
@@ -1312,7 +1305,7 @@ EXPORT_SYMBOL_GPL(wilc_netdev_cleanup);
 int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type,
 		     int gpio, const struct wilc_hif_func *ops)
 {
-	int i;
+	int i, ret;
 	struct wilc_vif *vif;
 	struct net_device *ndev;
 	struct wilc *wl;
@@ -1333,7 +1326,7 @@ int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type,
 	for (i = 0; i < NUM_CONCURRENT_IFC; i++) {
 		ndev = alloc_etherdev(sizeof(struct wilc_vif));
 		if (!ndev)
-			return -1;
+			return -ENOMEM;
 
 		vif = netdev_priv(ndev);
 		memset(vif, 0, sizeof(struct wilc_vif));
@@ -1372,8 +1365,9 @@ int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type,
 			vif->netstats.tx_bytes = 0;
 		}
 
-		if (register_netdev(ndev))
-			return -1;
+		ret = register_netdev(ndev);
+		if (ret)
+			return ret;
 
 		vif->iftype = STATION_MODE;
 		vif->mac_opened = 0;
diff --git a/drivers/staging/wilc1000/linux_wlan_common.h b/drivers/staging/wilc1000/linux_wlan_common.h
deleted file mode 100644
index 0d9a71f..0000000
--- a/drivers/staging/wilc1000/linux_wlan_common.h
+++ /dev/null
@@ -1,138 +0,0 @@
-#ifndef LINUX_WLAN_COMMON_H
-#define LINUX_WLAN_COMMON_H
-
-enum debug_region {
-	Hostapd_debug = 0,
-	CFG80211_debug,
-	Init_debug,
-	COMP = 0xFFFFFFFF,
-};
-
-#define HOSTAPD_DBG             (1 << Hostapd_debug)
-#define CFG80211_DBG            (1 << CFG80211_debug)
-#define INIT_DBG                (1 << Init_debug)
-
-#if defined(WILC_DEBUGFS)
-extern atomic_t WILC_REGION;
-extern atomic_t WILC_DEBUG_LEVEL;
-
-#define DEBUG           BIT(0)
-#define INFO            BIT(1)
-#define WRN             BIT(2)
-#define ERR             BIT(3)
-
-#define PRINT_D(region, ...)						\
-	do {								\
-		if ((atomic_read(&WILC_DEBUG_LEVEL) & DEBUG) &&	\
-		   ((atomic_read(&WILC_REGION)) & (region))) {	\
-			printk("DBG [%s: %d]", __func__, __LINE__);	\
-			printk(__VA_ARGS__);				\
-		}							\
-	} while (0)
-
-#define PRINT_INFO(region, ...)						\
-	do {								\
-		if ((atomic_read(&WILC_DEBUG_LEVEL) & INFO) &&	\
-		   ((atomic_read(&WILC_REGION)) & (region))) {	\
-			printk("INFO [%s]", __func__);			\
-			printk(__VA_ARGS__);				\
-		}							\
-	} while (0)
-
-#define PRINT_WRN(region, ...)						\
-	do {								\
-		if ((atomic_read(&WILC_DEBUG_LEVEL) & WRN) &&	\
-		   ((atomic_read(&WILC_REGION)) & (region))) {	\
-			printk("WRN [%s: %d]", __func__, __LINE__);	\
-			printk(__VA_ARGS__);				\
-		}							\
-	} while (0)
-
-#define PRINT_ER(...)							\
-	do {								\
-		if ((atomic_read(&WILC_DEBUG_LEVEL) & ERR)) {	\
-			printk("ERR [%s: %d]", __func__, __LINE__);	\
-			printk(__VA_ARGS__);				\
-		}							\
-	} while (0)
-
-#else
-
-#define REGION  (INIT_DBG | GENERIC_DBG | CFG80211_DBG | FIRM_DBG | HOSTAPD_DBG)
-
-#define DEBUG       1
-#define INFO        0
-#define WRN         0
-
-#define PRINT_D(region, ...)						\
-	do {								\
-		if (DEBUG == 1 && ((REGION)&(region))) {		\
-			printk("DBG [%s: %d]", __func__, __LINE__);	\
-			printk(__VA_ARGS__);				\
-		}							\
-	} while (0)
-
-#define PRINT_INFO(region, ...)						\
-	do {								\
-		if (INFO == 1 && ((REGION)&(region))) {			\
-			printk("INFO [%s]", __func__);			\
-			printk(__VA_ARGS__);				\
-		}							\
-	} while (0)
-
-#define PRINT_WRN(region, ...)						\
-	do {								\
-		if (WRN == 1 && ((REGION)&(region))) {			\
-			printk("WRN [%s: %d]", __func__, __LINE__);	\
-			printk(__VA_ARGS__);				\
-		}							\
-	} while (0)
-
-#define PRINT_ER(...)							\
-	do {								\
-		printk("ERR [%s: %d]", __func__, __LINE__);		\
-		printk(__VA_ARGS__);					\
-	} while (0)
-
-#endif
-
-#define LINUX_RX_SIZE	(96 * 1024)
-#define LINUX_TX_SIZE	(64 * 1024)
-
-
-#define WILC_MULTICAST_TABLE_SIZE	8
-
-#if defined(BEAGLE_BOARD)
-	#define SPI_CHANNEL	4
-
-	#if SPI_CHANNEL == 4
-		#define MODALIAS	"wilc_spi4"
-		#define GPIO_NUM	162
-	#else
-		#define MODALIAS	"wilc_spi3"
-		#define GPIO_NUM	133
-	#endif
-#elif defined(PLAT_WMS8304)             /* rachel */
-	#define MODALIAS	"wilc_spi"
-	#define GPIO_NUM	139
-#elif defined(PLAT_RKXXXX)
- #define MODALIAS	"WILC_IRQ"
- #define GPIO_NUM	RK30_PIN3_PD2 /* RK30_PIN3_PA1 */
-/* RK30_PIN3_PD2 */
-/* RK2928_PIN1_PA7 */
-
-#elif defined(CUSTOMER_PLATFORM)
-/*
- TODO : specify MODALIAS name and GPIO number. This is certainly necessary for SPI interface.
- *
- * ex)
- * #define MODALIAS  "WILC_SPI"
- * #define GPIO_NUM  139
- */
-
-#else
-/* base on SAMA5D3_Xplained Board */
-	#define MODALIAS	"WILC_SPI"
-	#define GPIO_NUM	0x44
-#endif
-#endif
diff --git a/drivers/staging/wilc1000/wilc_debugfs.c b/drivers/staging/wilc1000/wilc_debugfs.c
index da7ec8b..fcbc95d 100644
--- a/drivers/staging/wilc1000/wilc_debugfs.c
+++ b/drivers/staging/wilc1000/wilc_debugfs.c
@@ -23,12 +23,12 @@ static struct dentry *wilc_dir;
 /*
  * --------------------------------------------------------------------------------
  */
+#define DEBUG           BIT(0)
+#define INFO            BIT(1)
+#define WRN             BIT(2)
+#define ERR             BIT(3)
 
-#define DBG_REGION_ALL	(HOSTAPD_DBG | CFG80211_DBG | INIT_DBG)
 #define DBG_LEVEL_ALL	(DEBUG | INFO | WRN | ERR)
-atomic_t WILC_REGION = ATOMIC_INIT(INIT_DBG | CFG80211_DBG |
-				   HOSTAPD_DBG);
-EXPORT_SYMBOL_GPL(WILC_REGION);
 atomic_t WILC_DEBUG_LEVEL = ATOMIC_INIT(ERR);
 EXPORT_SYMBOL_GPL(WILC_DEBUG_LEVEL);
 
@@ -76,44 +76,6 @@ static ssize_t wilc_debug_level_write(struct file *filp, const char __user *buf,
 	return count;
 }
 
-static ssize_t wilc_debug_region_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos)
-{
-	char buf[128];
-	int res = 0;
-
-	/* only allow read from start */
-	if (*ppos > 0)
-		return 0;
-
-	res = scnprintf(buf, sizeof(buf), "Debug region: %x\n", atomic_read(&WILC_REGION));
-
-	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-
-static ssize_t wilc_debug_region_write(struct file *filp, const char __user *buf, size_t count, loff_t *ppos)
-{
-	char buffer[128] = {};
-	int flag;
-
-	if (count > sizeof(buffer))
-		return -EINVAL;
-
-	if (copy_from_user(buffer, buf, count))
-		return -EFAULT;
-
-	flag = buffer[0] - '0';
-
-	if (flag > DBG_REGION_ALL) {
-		printk("%s, value (0x%08x) is out of range, stay previous flag (0x%08x)\n", __func__, flag, atomic_read(&WILC_REGION));
-		return -EFAULT;
-	}
-
-	atomic_set(&WILC_REGION, (int)flag);
-	printk("new debug-region is %x\n", atomic_read(&WILC_REGION));
-
-	return count;
-}
-
 /*
  * --------------------------------------------------------------------------------
  */
@@ -130,12 +92,11 @@ struct wilc_debugfs_info_t {
 	const char *name;
 	int perm;
 	unsigned int data;
-	struct file_operations fops;
+	const struct file_operations fops;
 };
 
 static struct wilc_debugfs_info_t debugfs_info[] = {
 	{ "wilc_debug_level",	0666,	(DEBUG | ERR), FOPS(NULL, wilc_debug_level_read, wilc_debug_level_write, NULL), },
-	{ "wilc_debug_region",	0666,	(INIT_DBG | CFG80211_DBG), FOPS(NULL, wilc_debug_region_read, wilc_debug_region_write, NULL), },
 };
 
 static int __init wilc_debugfs_init(void)
diff --git a/drivers/staging/wilc1000/wilc_msgqueue.c b/drivers/staging/wilc1000/wilc_msgqueue.c
index 780ddd3..6cb894e 100644
--- a/drivers/staging/wilc1000/wilc_msgqueue.c
+++ b/drivers/staging/wilc1000/wilc_msgqueue.c
@@ -1,7 +1,6 @@
 
 #include "wilc_msgqueue.h"
 #include <linux/spinlock.h>
-#include "linux_wlan_common.h"
 #include <linux/errno.h>
 #include <linux/slab.h>
 
diff --git a/drivers/staging/wilc1000/wilc_sdio.c b/drivers/staging/wilc1000/wilc_sdio.c
index 963875af..029bd09 100644
--- a/drivers/staging/wilc1000/wilc_sdio.c
+++ b/drivers/staging/wilc1000/wilc_sdio.c
@@ -30,15 +30,15 @@ static const struct sdio_device_id wilc_sdio_ids[] = {
 
 #define WILC_SDIO_BLOCK_SIZE 512
 
-typedef struct {
+struct wilc_sdio {
 	bool irq_gpio;
 	u32 block_size;
 	int nint;
 #define MAX_NUN_INT_THRPT_ENH2 (5) /* Max num interrupts allowed in registers 0xf7, 0xf8 */
 	int has_thrpt_enh3;
-} wilc_sdio_t;
+};
 
-static wilc_sdio_t g_sdio;
+static struct wilc_sdio g_sdio;
 
 static int sdio_write_reg(struct wilc *wilc, u32 addr, u32 data);
 static int sdio_read_reg(struct wilc *wilc, u32 addr, u32 *data);
@@ -675,7 +675,7 @@ static int sdio_init(struct wilc *wilc, bool resume)
 	u32 chipid;
 
 	if (!resume) {
-		memset(&g_sdio, 0, sizeof(wilc_sdio_t));
+		memset(&g_sdio, 0, sizeof(struct wilc_sdio));
 		g_sdio.irq_gpio = wilc->dev_irq_num;
 	}
 
diff --git a/drivers/staging/wilc1000/wilc_spi.c b/drivers/staging/wilc1000/wilc_spi.c
index 2928712..d41b8b6 100644
--- a/drivers/staging/wilc1000/wilc_spi.c
+++ b/drivers/staging/wilc1000/wilc_spi.c
@@ -18,19 +18,18 @@
 #include <linux/spi/spi.h>
 #include <linux/of_gpio.h>
 
-#include "linux_wlan_common.h"
 #include <linux/string.h>
 #include "wilc_wlan_if.h"
 #include "wilc_wlan.h"
 #include "wilc_wfi_netdevice.h"
 
-typedef struct {
+struct wilc_spi {
 	int crc_off;
 	int nint;
 	int has_thrpt_enh;
-} wilc_spi_t;
+};
 
-static wilc_spi_t g_spi;
+static struct wilc_spi g_spi;
 
 static int wilc_spi_read(struct wilc *wilc, u32, u8 *, u32);
 static int wilc_spi_write(struct wilc *wilc, u32, u8 *, u32);
@@ -380,9 +379,8 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz,
 		break;
 	}
 
-	if (result != N_OK) {
+	if (result != N_OK)
 		return result;
-	}
 
 	if (!g_spi.crc_off)
 		wb[len - 1] = (crc7(0x7f, (const u8 *)&wb[0], len - 1)) << 1;
@@ -419,9 +417,8 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz,
 		return result;
 	}
 	/* zero spi write buffers. */
-	for (wix = len; wix < len2; wix++) {
+	for (wix = len; wix < len2; wix++)
 		wb[wix] = 0;
-	}
 	rix = len;
 
 	if (wilc_spi_tx_rx(wilc, wb, rb, len2)) {
@@ -445,8 +442,9 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz,
 	/* } while(&rptr[1] <= &rb[len2]); */
 
 	if (rsp != cmd) {
-		dev_err(&spi->dev, "Failed cmd response, cmd (%02x)"
-			 ", resp (%02x)\n", cmd, rsp);
+		dev_err(&spi->dev,
+			"Failed cmd response, cmd (%02x), resp (%02x)\n",
+			cmd, rsp);
 		result = N_FAIL;
 		return result;
 	}
@@ -514,7 +512,7 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz,
 					crc[0] = rb[rix++];
 					crc[1] = rb[rix++];
 				} else {
-					dev_err(&spi->dev,"buffer overrun when reading crc.\n");
+					dev_err(&spi->dev, "buffer overrun when reading crc.\n");
 					result = N_FAIL;
 					return result;
 				}
@@ -523,9 +521,8 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz,
 			int ix;
 
 			/* some data may be read in response to dummy bytes. */
-			for (ix = 0; (rix < len2) && (ix < sz); ) {
+			for (ix = 0; (rix < len2) && (ix < sz); )
 				b[ix++] = rb[rix++];
-			}
 
 			sz -= ix;
 
@@ -680,7 +677,7 @@ static int spi_data_write(struct wilc *wilc, u8 *b, u32 sz)
 		 **/
 		if (!g_spi.crc_off) {
 			if (wilc_spi_tx(wilc, crc, 2)) {
-				dev_err(&spi->dev,"Failed data block crc write, bus error...\n");
+				dev_err(&spi->dev, "Failed data block crc write, bus error...\n");
 				result = N_FAIL;
 				break;
 			}
@@ -711,9 +708,8 @@ static int spi_internal_write(struct wilc *wilc, u32 adr, u32 dat)
 	dat = cpu_to_le32(dat);
 	result = spi_cmd_complete(wilc, CMD_INTERNAL_WRITE, adr, (u8 *)&dat, 4,
 				  0);
-	if (result != N_OK) {
+	if (result != N_OK)
 		dev_err(&spi->dev, "Failed internal write cmd...\n");
-	}
 
 	return result;
 }
@@ -756,9 +752,8 @@ static int wilc_spi_write_reg(struct wilc *wilc, u32 addr, u32 data)
 	}
 
 	result = spi_cmd_complete(wilc, cmd, addr, (u8 *)&data, 4, clockless);
-	if (result != N_OK) {
+	if (result != N_OK)
 		dev_err(&spi->dev, "Failed cmd, write reg (%08x)...\n", addr);
-	}
 
 	return result;
 }
@@ -786,9 +781,8 @@ static int wilc_spi_write(struct wilc *wilc, u32 addr, u8 *buf, u32 size)
 	 *      Data
 	 **/
 	result = spi_data_write(wilc, buf, size);
-	if (result != N_OK) {
+	if (result != N_OK)
 		dev_err(&spi->dev, "Failed block data write...\n");
-	}
 
 	return 1;
 }
@@ -867,7 +861,7 @@ static int wilc_spi_init(struct wilc *wilc, bool resume)
 		return 1;
 	}
 
-	memset(&g_spi, 0, sizeof(wilc_spi_t));
+	memset(&g_spi, 0, sizeof(struct wilc_spi));
 
 	/**
 	 *      configure protocol
@@ -1074,7 +1068,7 @@ static int wilc_spi_clear_int_ext(struct wilc *wilc, u32 val)
 				ret = wilc_spi_write_reg(wilc,
 							 WILC_VMM_CORE_CTL, 1);
 				if (!ret) {
-					dev_err(&spi->dev,"fail write reg vmm_core_ctl...\n");
+					dev_err(&spi->dev, "fail write reg vmm_core_ctl...\n");
 					goto _fail_;
 				}
 			}
@@ -1124,9 +1118,9 @@ static int wilc_spi_sync_ext(struct wilc *wilc, int nint)
 		return 0;
 	}
 
-	for (i = 0; (i < 5) && (nint > 0); i++, nint--) {
+	for (i = 0; (i < 5) && (nint > 0); i++, nint--)
 		reg |= (BIT((27 + i)));
-	}
+
 	ret = wilc_spi_write_reg(wilc, WILC_INTR_ENABLE, reg);
 	if (!ret) {
 		dev_err(&spi->dev, "Failed write reg (%08x)...\n",
@@ -1141,9 +1135,8 @@ static int wilc_spi_sync_ext(struct wilc *wilc, int nint)
 			return 0;
 		}
 
-		for (i = 0; (i < 3) && (nint > 0); i++, nint--) {
+		for (i = 0; (i < 3) && (nint > 0); i++, nint--)
 			reg |= BIT(i);
-		}
 
 		ret = wilc_spi_read_reg(wilc, WILC_INTR2_ENABLE, &reg);
 		if (!ret) {
diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
index 81a2ee9..378c350 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
@@ -157,7 +157,7 @@ static u8 wlan_channel = INVALID_CHANNEL;
 static u8 curr_channel;
 static u8 p2p_oui[] = {0x50, 0x6f, 0x9A, 0x09};
 static u8 p2p_local_random = 0x01;
-static u8 p2p_recv_random = 0x00;
+static u8 p2p_recv_random;
 static u8 p2p_vendor_spec[] = {0xdd, 0x05, 0x00, 0x08, 0x40, 0x03};
 static bool wilc_ie;
 
@@ -290,9 +290,6 @@ static void remove_network_from_shadow(unsigned long arg)
 	for (i = 0; i < last_scanned_cnt; i++) {
 		if (time_after(now, last_scanned_shadow[i].time_scan +
 			       (unsigned long)(SCAN_RESULT_EXPIRE))) {
-			PRINT_D(CFG80211_DBG, "Network expired ScanShadow:%s\n",
-				last_scanned_shadow[i].ssid);
-
 			kfree(last_scanned_shadow[i].ies);
 			last_scanned_shadow[i].ies = NULL;
 
@@ -305,13 +302,9 @@ static void remove_network_from_shadow(unsigned long arg)
 		}
 	}
 
-	PRINT_D(CFG80211_DBG, "Number of cached networks: %d\n",
-		last_scanned_cnt);
 	if (last_scanned_cnt != 0) {
 		hAgingTimer.data = arg;
 		mod_timer(&hAgingTimer, jiffies + msecs_to_jiffies(AGING_TIME));
-	} else {
-		PRINT_D(CFG80211_DBG, "No need to restart Aging timer\n");
 	}
 }
 
@@ -327,7 +320,6 @@ static int is_network_in_shadow(struct network_info *pstrNetworkInfo,
 	int i;
 
 	if (last_scanned_cnt == 0) {
-		PRINT_D(CFG80211_DBG, "Starting Aging timer\n");
 		hAgingTimer.data = (unsigned long)user_void;
 		mod_timer(&hAgingTimer, jiffies + msecs_to_jiffies(AGING_TIME));
 		state = -1;
@@ -350,10 +342,9 @@ static void add_network_to_shadow(struct network_info *pstrNetworkInfo,
 	u32 ap_index = 0;
 	u8 rssi_index = 0;
 
-	if (last_scanned_cnt >= MAX_NUM_SCANNED_NETWORKS_SHADOW) {
-		PRINT_D(CFG80211_DBG, "Shadow network reached its maximum limit\n");
+	if (last_scanned_cnt >= MAX_NUM_SCANNED_NETWORKS_SHADOW)
 		return;
-	}
+
 	if (ap_found == -1) {
 		ap_index = last_scanned_cnt;
 		last_scanned_cnt++;
@@ -424,21 +415,8 @@ static void CfgScanResult(enum scan_event scan_event,
 				if (!channel)
 					return;
 
-				PRINT_INFO(CFG80211_DBG, "Network Info::"
-					   "CHANNEL Frequency: %d,"
-					   "RSSI: %d,"
-					   "Capability Info: %d,"
-					   "Beacon Period: %d\n",
-					   channel->center_freq,
-					   (s32)network_info->rssi * 100,
-					   network_info->cap_info,
-					   network_info->beacon_period);
-
 				if (network_info->new_network) {
 					if (priv->u32RcvdChCount < MAX_NUM_SCANNED_NETWORKS) {
-						PRINT_D(CFG80211_DBG,
-							"Network %s found\n",
-							network_info->ssid);
 						priv->u32RcvdChCount++;
 
 						add_network_to_shadow(network_info, priv, join_params);
@@ -463,8 +441,6 @@ static void CfgScanResult(enum scan_event scan_event,
 
 					for (i = 0; i < priv->u32RcvdChCount; i++) {
 						if (memcmp(last_scanned_shadow[i].bssid, network_info->bssid, 6) == 0) {
-							PRINT_D(CFG80211_DBG, "Update RSSI of %s\n", last_scanned_shadow[i].ssid);
-
 							last_scanned_shadow[i].rssi = network_info->rssi;
 							last_scanned_shadow[i].time_scan = jiffies;
 							break;
@@ -473,15 +449,8 @@ static void CfgScanResult(enum scan_event scan_event,
 				}
 			}
 		} else if (scan_event == SCAN_EVENT_DONE) {
-			PRINT_D(CFG80211_DBG, "Scan Done[%p]\n", priv->dev);
-			PRINT_D(CFG80211_DBG, "Refreshing Scan ...\n");
 			refresh_scan(priv, 1, false);
 
-			if (priv->u32RcvdChCount > 0)
-				PRINT_D(CFG80211_DBG, "%d Network(s) found\n", priv->u32RcvdChCount);
-			else
-				PRINT_D(CFG80211_DBG, "No networks found\n");
-
 			down(&(priv->hSemScanReq));
 
 			if (priv->pstrScanReq) {
@@ -494,7 +463,6 @@ static void CfgScanResult(enum scan_event scan_event,
 		} else if (scan_event == SCAN_EVENT_ABORTED) {
 			down(&(priv->hSemScanReq));
 
-			PRINT_D(CFG80211_DBG, "Scan Aborted\n");
 			if (priv->pstrScanReq) {
 				update_scan_time();
 				refresh_scan(priv, 1, false);
@@ -511,9 +479,9 @@ static void CfgScanResult(enum scan_event scan_event,
 int wilc_connecting;
 
 static void CfgConnectResult(enum conn_event enuConnDisconnEvent,
-			     tstrConnectInfo *pstrConnectInfo,
+			     struct connect_info *pstrConnectInfo,
 			     u8 u8MacStatus,
-			     tstrDisconnectNotifInfo *pstrDisconnectNotifInfo,
+			     struct disconnect_info *pstrDisconnectNotifInfo,
 			     void *pUserVoid)
 {
 	struct wilc_priv *priv;
@@ -534,12 +502,10 @@ static void CfgConnectResult(enum conn_event enuConnDisconnEvent,
 	if (enuConnDisconnEvent == CONN_DISCONN_EVENT_CONN_RESP) {
 		u16 u16ConnectStatus;
 
-		u16ConnectStatus = pstrConnectInfo->u16ConnectStatus;
-
-		PRINT_D(CFG80211_DBG, " Connection response received = %d\n", u8MacStatus);
+		u16ConnectStatus = pstrConnectInfo->status;
 
 		if ((u8MacStatus == MAC_DISCONNECTED) &&
-		    (pstrConnectInfo->u16ConnectStatus == SUCCESSFUL_STATUSCODE)) {
+		    (pstrConnectInfo->status == SUCCESSFUL_STATUSCODE)) {
 			u16ConnectStatus = WLAN_STATUS_UNSPECIFIED_FAILURE;
 			wilc_wlan_set_bssid(priv->dev, NullBssid,
 					    STATION_MODE);
@@ -555,14 +521,12 @@ static void CfgConnectResult(enum conn_event enuConnDisconnEvent,
 			bool bNeedScanRefresh = false;
 			u32 i;
 
-			PRINT_INFO(CFG80211_DBG, "Connection Successful:: BSSID: %x%x%x%x%x%x\n", pstrConnectInfo->au8bssid[0],
-				   pstrConnectInfo->au8bssid[1], pstrConnectInfo->au8bssid[2], pstrConnectInfo->au8bssid[3], pstrConnectInfo->au8bssid[4], pstrConnectInfo->au8bssid[5]);
-			memcpy(priv->au8AssociatedBss, pstrConnectInfo->au8bssid, ETH_ALEN);
+			memcpy(priv->au8AssociatedBss, pstrConnectInfo->bssid, ETH_ALEN);
 
 
 			for (i = 0; i < last_scanned_cnt; i++) {
 				if (memcmp(last_scanned_shadow[i].bssid,
-					   pstrConnectInfo->au8bssid,
+					   pstrConnectInfo->bssid,
 					   ETH_ALEN) == 0) {
 					unsigned long now = jiffies;
 
@@ -579,14 +543,9 @@ static void CfgConnectResult(enum conn_event enuConnDisconnEvent,
 				refresh_scan(priv, 1, true);
 		}
 
-
-		PRINT_D(CFG80211_DBG, "Association request info elements length = %zu\n", pstrConnectInfo->ReqIEsLen);
-
-		PRINT_D(CFG80211_DBG, "Association response info elements length = %d\n", pstrConnectInfo->u16RespIEsLen);
-
-		cfg80211_connect_result(dev, pstrConnectInfo->au8bssid,
-					pstrConnectInfo->pu8ReqIEs, pstrConnectInfo->ReqIEsLen,
-					pstrConnectInfo->pu8RespIEs, pstrConnectInfo->u16RespIEsLen,
+		cfg80211_connect_result(dev, pstrConnectInfo->bssid,
+					pstrConnectInfo->req_ies, pstrConnectInfo->req_ies_len,
+					pstrConnectInfo->resp_ies, pstrConnectInfo->resp_ies_len,
 					u16ConnectStatus, GFP_KERNEL);
 	} else if (enuConnDisconnEvent == CONN_DISCONN_EVENT_DISCONN_NOTIF)    {
 		wilc_optaining_ip = false;
@@ -600,11 +559,11 @@ static void CfgConnectResult(enum conn_event enuConnDisconnEvent,
 		if (!pstrWFIDrv->p2p_connect)
 			wlan_channel = INVALID_CHANNEL;
 		if ((pstrWFIDrv->IFC_UP) && (dev == wl->vif[1]->ndev)) {
-			pstrDisconnectNotifInfo->u16reason = 3;
+			pstrDisconnectNotifInfo->reason = 3;
 		} else if ((!pstrWFIDrv->IFC_UP) && (dev == wl->vif[1]->ndev)) {
-			pstrDisconnectNotifInfo->u16reason = 1;
+			pstrDisconnectNotifInfo->reason = 1;
 		}
-		cfg80211_disconnected(dev, pstrDisconnectNotifInfo->u16reason, pstrDisconnectNotifInfo->ie,
+		cfg80211_disconnected(dev, pstrDisconnectNotifInfo->reason, pstrDisconnectNotifInfo->ie,
 				      pstrDisconnectNotifInfo->ie_len, false,
 				      GFP_KERNEL);
 	}
@@ -622,7 +581,6 @@ static int set_channel(struct wiphy *wiphy,
 	vif = netdev_priv(priv->dev);
 
 	channelnum = ieee80211_frequency_to_channel(chandef->chan->center_freq);
-	PRINT_D(CFG80211_DBG, "Setting channel %d with frequency %d\n", channelnum, chandef->chan->center_freq);
 
 	curr_channel = channelnum;
 	result = wilc_set_mac_chnl_num(vif, channelnum);
@@ -653,18 +611,16 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 
 	priv->bCfgScanning = true;
 	if (request->n_channels <= MAX_NUM_SCANNED_NETWORKS) {
-		for (i = 0; i < request->n_channels; i++) {
+		for (i = 0; i < request->n_channels; i++)
 			au8ScanChanList[i] = (u8)ieee80211_frequency_to_channel(request->channels[i]->center_freq);
-			PRINT_INFO(CFG80211_DBG, "ScanChannel List[%d] = %d,", i, au8ScanChanList[i]);
-		}
-
-		PRINT_D(CFG80211_DBG, "Requested num of scan channel %d\n", request->n_channels);
-		PRINT_D(CFG80211_DBG, "Scan Request IE len =  %zu\n", request->ie_len);
-
-		PRINT_D(CFG80211_DBG, "Number of SSIDs %d\n", request->n_ssids);
 
 		if (request->n_ssids >= 1) {
-			strHiddenNetwork.net_info = kmalloc(request->n_ssids * sizeof(struct hidden_network), GFP_KERNEL);
+			strHiddenNetwork.net_info =
+				kmalloc_array(request->n_ssids,
+					      sizeof(struct hidden_network),
+					      GFP_KERNEL);
+			if (!strHiddenNetwork.net_info)
+				return -ENOMEM;
 			strHiddenNetwork.n_ssids = request->n_ssids;
 
 
@@ -675,11 +631,9 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 					memcpy(strHiddenNetwork.net_info[i].ssid, request->ssids[i].ssid, request->ssids[i].ssid_len);
 					strHiddenNetwork.net_info[i].ssid_len = request->ssids[i].ssid_len;
 				} else {
-					PRINT_D(CFG80211_DBG, "Received one NULL SSID\n");
 					strHiddenNetwork.n_ssids -= 1;
 				}
 			}
-			PRINT_D(CFG80211_DBG, "Trigger Scan Request\n");
 			s32Error = wilc_scan(vif, USER_SCAN, ACTIVE_SCAN,
 					     au8ScanChanList,
 					     request->n_channels,
@@ -687,7 +641,6 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 					     request->ie_len, CfgScanResult,
 					     (void *)priv, &strHiddenNetwork);
 		} else {
-			PRINT_D(CFG80211_DBG, "Trigger Scan Request\n");
 			s32Error = wilc_scan(vif, USER_SCAN, ACTIVE_SCAN,
 					     au8ScanChanList,
 					     request->n_channels,
@@ -699,10 +652,8 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 		netdev_err(priv->dev, "Requested scanned channels over\n");
 	}
 
-	if (s32Error != 0) {
+	if (s32Error != 0)
 		s32Error = -EBUSY;
-		PRINT_WRN(CFG80211_DBG, "Device is busy: Error(%d)\n", s32Error);
-	}
 
 	return s32Error;
 }
@@ -728,53 +679,30 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 	vif = netdev_priv(priv->dev);
 	pstrWFIDrv = (struct host_if_drv *)priv->hif_drv;
 
-	PRINT_D(CFG80211_DBG,
-		"Connecting to SSID [%s] on netdev [%p] host if [%p]\n",
-		sme->ssid, dev, priv->hif_drv);
-	if (!(strncmp(sme->ssid, "DIRECT-", 7))) {
-		PRINT_D(CFG80211_DBG, "Connected to Direct network,OBSS disabled\n");
+	if (!(strncmp(sme->ssid, "DIRECT-", 7)))
 		pstrWFIDrv->p2p_connect = 1;
-	} else {
+	else
 		pstrWFIDrv->p2p_connect = 0;
-	}
-	PRINT_INFO(CFG80211_DBG, "Required SSID = %s\n , AuthType = %d\n", sme->ssid, sme->auth_type);
 
 	for (i = 0; i < last_scanned_cnt; i++) {
 		if ((sme->ssid_len == last_scanned_shadow[i].ssid_len) &&
 		    memcmp(last_scanned_shadow[i].ssid,
 			   sme->ssid,
 			   sme->ssid_len) == 0) {
-			PRINT_INFO(CFG80211_DBG, "Network with required SSID is found %s\n", sme->ssid);
-			if (!sme->bssid) {
-				PRINT_INFO(CFG80211_DBG, "BSSID is not passed from the user\n");
+			if (!sme->bssid)
 				break;
-			} else {
+			else
 				if (memcmp(last_scanned_shadow[i].bssid,
 					   sme->bssid,
-					   ETH_ALEN) == 0) {
-					PRINT_INFO(CFG80211_DBG, "BSSID is passed from the user and matched\n");
+					   ETH_ALEN) == 0)
 					break;
-				}
-			}
 		}
 	}
 
 	if (i < last_scanned_cnt) {
-		PRINT_D(CFG80211_DBG, "Required bss is in scan results\n");
-
 		pstrNetworkInfo = &last_scanned_shadow[i];
-
-		PRINT_INFO(CFG80211_DBG, "network BSSID to be associated:"
-			   "%x%x%x%x%x%x\n",
-			   pstrNetworkInfo->bssid[0], pstrNetworkInfo->bssid[1],
-			   pstrNetworkInfo->bssid[2], pstrNetworkInfo->bssid[3],
-			   pstrNetworkInfo->bssid[4], pstrNetworkInfo->bssid[5]);
 	} else {
 		s32Error = -ENOENT;
-		if (last_scanned_cnt == 0)
-			PRINT_D(CFG80211_DBG, "No Scan results yet\n");
-		else
-			PRINT_D(CFG80211_DBG, "Required bss not in scan results: Error(%d)\n", s32Error);
 		wilc_connecting = 0;
 		return s32Error;
 	}
@@ -782,18 +710,12 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 	memset(priv->WILC_WFI_wep_key, 0, sizeof(priv->WILC_WFI_wep_key));
 	memset(priv->WILC_WFI_wep_key_len, 0, sizeof(priv->WILC_WFI_wep_key_len));
 
-	PRINT_INFO(CFG80211_DBG, "sme->crypto.wpa_versions=%x\n", sme->crypto.wpa_versions);
-	PRINT_INFO(CFG80211_DBG, "sme->crypto.cipher_group=%x\n", sme->crypto.cipher_group);
-
-	PRINT_INFO(CFG80211_DBG, "sme->crypto.n_ciphers_pairwise=%d\n", sme->crypto.n_ciphers_pairwise);
-
 	if (sme->crypto.cipher_group != NO_ENCRYPT) {
 		pcwpa_version = "Default";
 		if (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP40) {
 			u8security = ENCRYPT_ENABLED | WEP;
 			pcgroup_encrypt_val = "WEP40";
 			pccipher_group = "WLAN_CIPHER_SUITE_WEP40";
-			PRINT_INFO(CFG80211_DBG, "WEP Default Key Idx = %d\n", sme->key_idx);
 
 			priv->WILC_WFI_wep_key_len[sme->key_idx] = sme->key_len;
 			memcpy(priv->WILC_WFI_wep_key[sme->key_idx], sme->key, sme->key_len);
@@ -866,22 +788,17 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 		}
 	}
 
-	PRINT_D(CFG80211_DBG, "Adding key with cipher group = %x\n", sme->crypto.cipher_group);
-
-	PRINT_D(CFG80211_DBG, "Authentication Type = %d\n", sme->auth_type);
 	switch (sme->auth_type)	{
 	case NL80211_AUTHTYPE_OPEN_SYSTEM:
-		PRINT_D(CFG80211_DBG, "In OPEN SYSTEM\n");
 		tenuAuth_type = OPEN_SYSTEM;
 		break;
 
 	case NL80211_AUTHTYPE_SHARED_KEY:
 		tenuAuth_type = SHARED_KEY;
-		PRINT_D(CFG80211_DBG, "In SHARED KEY\n");
 		break;
 
 	default:
-		PRINT_D(CFG80211_DBG, "Automatic Authentation type = %d\n", sme->auth_type);
+		break;
 	}
 
 	if (sme->crypto.n_akm_suites) {
@@ -895,12 +812,6 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 		}
 	}
 
-
-	PRINT_INFO(CFG80211_DBG, "Required Ch = %d\n", pstrNetworkInfo->ch);
-
-	PRINT_INFO(CFG80211_DBG, "Group encryption value = %s\n Cipher Group = %s\n WPA version = %s\n",
-		   pcgroup_encrypt_val, pccipher_group, pcwpa_version);
-
 	curr_channel = pstrNetworkInfo->ch;
 
 	if (!pstrWFIDrv->p2p_connect)
@@ -941,8 +852,6 @@ static int disconnect(struct wiphy *wiphy, struct net_device *dev, u16 reason_co
 		wlan_channel = INVALID_CHANNEL;
 	wilc_wlan_set_bssid(priv->dev, NullBssid, STATION_MODE);
 
-	PRINT_D(CFG80211_DBG, "Disconnecting with reason code(%d)\n", reason_code);
-
 	p2p_local_random = 0x01;
 	p2p_recv_random = 0x00;
 	wilc_ie = false;
@@ -963,7 +872,6 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 
 {
 	s32 s32Error = 0, KeyLen = params->key_len;
-	u32 i;
 	struct wilc_priv *priv;
 	const u8 *pu8RxMic = NULL;
 	const u8 *pu8TxMic = NULL;
@@ -978,15 +886,6 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 	vif = netdev_priv(netdev);
 	wl = vif->wilc;
 
-	PRINT_D(CFG80211_DBG, "Adding key with cipher suite = %x\n", params->cipher);
-
-	PRINT_D(CFG80211_DBG, "%p %p %d\n", wiphy, netdev, key_index);
-
-	PRINT_D(CFG80211_DBG, "key %x %x %x\n", params->key[0],
-		params->key[1],
-		params->key[2]);
-
-
 	switch (params->cipher)	{
 	case WLAN_CIPHER_SUITE_WEP40:
 	case WLAN_CIPHER_SUITE_WEP104:
@@ -994,12 +893,6 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 			priv->WILC_WFI_wep_key_len[key_index] = params->key_len;
 			memcpy(priv->WILC_WFI_wep_key[key_index], params->key, params->key_len);
 
-			PRINT_D(CFG80211_DBG, "Adding AP WEP Default key Idx = %d\n", key_index);
-			PRINT_D(CFG80211_DBG, "Adding AP WEP Key len= %d\n", params->key_len);
-
-			for (i = 0; i < params->key_len; i++)
-				PRINT_D(CFG80211_DBG, "WEP AP key val[%d] = %x\n", i, params->key[i]);
-
 			tenuAuth_type = OPEN_SYSTEM;
 
 			if (params->cipher == WLAN_CIPHER_SUITE_WEP40)
@@ -1016,12 +909,6 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 			priv->WILC_WFI_wep_key_len[key_index] = params->key_len;
 			memcpy(priv->WILC_WFI_wep_key[key_index], params->key, params->key_len);
 
-			PRINT_D(CFG80211_DBG, "Adding WEP Default key Idx = %d\n", key_index);
-			PRINT_D(CFG80211_DBG, "Adding WEP Key length = %d\n", params->key_len);
-			if (INFO) {
-				for (i = 0; i < params->key_len; i++)
-					PRINT_INFO(CFG80211_DBG, "WEP key value[%d] = %d\n", i, params->key[i]);
-			}
 			wilc_add_wep_key_bss_sta(vif, params->key,
 						 params->key_len, key_index);
 		}
@@ -1072,22 +959,12 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 				priv->wilc_gtk[key_index]->key_len = params->key_len;
 				priv->wilc_gtk[key_index]->seq_len = params->seq_len;
 
-				if (INFO) {
-					for (i = 0; i < params->key_len; i++)
-						PRINT_INFO(CFG80211_DBG, "Adding group key value[%d] = %x\n", i, params->key[i]);
-					for (i = 0; i < params->seq_len; i++)
-						PRINT_INFO(CFG80211_DBG, "Adding group seq value[%d] = %x\n", i, params->seq[i]);
-				}
-
-
 				wilc_add_rx_gtk(vif, params->key, KeyLen,
 						key_index, params->seq_len,
 						params->seq, pu8RxMic,
 						pu8TxMic, AP_MODE, u8gmode);
 
 			} else {
-				PRINT_INFO(CFG80211_DBG, "STA Address: %x%x%x%x%x\n", mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4]);
-
 				if (params->cipher == WLAN_CIPHER_SUITE_TKIP)
 					u8pmode = ENCRYPT_ENABLED | WPA | TKIP;
 				else
@@ -1109,14 +986,6 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 				if ((params->seq_len) > 0)
 					priv->wilc_ptk[key_index]->seq = kmalloc(params->seq_len, GFP_KERNEL);
 
-				if (INFO) {
-					for (i = 0; i < params->key_len; i++)
-						PRINT_INFO(CFG80211_DBG, "Adding pairwise key value[%d] = %x\n", i, params->key[i]);
-
-					for (i = 0; i < params->seq_len; i++)
-						PRINT_INFO(CFG80211_DBG, "Adding group seq value[%d] = %x\n", i, params->seq[i]);
-				}
-
 				memcpy(priv->wilc_ptk[key_index]->key, params->key, params->key_len);
 
 				if ((params->seq_len) > 0)
@@ -1160,10 +1029,6 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 						memcpy(g_key_gtk_params.seq, params->seq, params->seq_len);
 					}
 					g_key_gtk_params.cipher = params->cipher;
-
-					PRINT_D(CFG80211_DBG, "key %x %x %x\n", g_key_gtk_params.key[0],
-						g_key_gtk_params.key[1],
-						g_key_gtk_params.key[2]);
 					g_gtk_keys_saved = true;
 				}
 
@@ -1197,21 +1062,12 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 						memcpy(g_key_ptk_params.seq, params->seq, params->seq_len);
 					}
 					g_key_ptk_params.cipher = params->cipher;
-
-					PRINT_D(CFG80211_DBG, "key %x %x %x\n", g_key_ptk_params.key[0],
-						g_key_ptk_params.key[1],
-						g_key_ptk_params.key[2]);
 					g_ptk_keys_saved = true;
 				}
 
 				wilc_add_ptk(vif, params->key, KeyLen,
 					     mac_addr, pu8RxMic, pu8TxMic,
 					     STATION_MODE, u8mode, key_index);
-				PRINT_D(CFG80211_DBG, "Adding pairwise key\n");
-				if (INFO) {
-					for (i = 0; i < params->key_len; i++)
-						PRINT_INFO(CFG80211_DBG, "Adding pairwise key value[%d] = %d\n", i, params->key[i]);
-				}
 			}
 		}
 		break;
@@ -1279,11 +1135,8 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev,
 	if (key_index >= 0 && key_index <= 3) {
 		memset(priv->WILC_WFI_wep_key[key_index], 0, priv->WILC_WFI_wep_key_len[key_index]);
 		priv->WILC_WFI_wep_key_len[key_index] = 0;
-
-		PRINT_D(CFG80211_DBG, "Removing WEP key with index = %d\n", key_index);
 		wilc_remove_wep_key(vif, key_index);
 	} else {
-		PRINT_D(CFG80211_DBG, "Removing all installed keys\n");
 		wilc_remove_key(priv->hif_drv, mac_addr);
 	}
 
@@ -1296,26 +1149,17 @@ static int get_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 {
 	struct wilc_priv *priv;
 	struct  key_params key_params;
-	u32 i;
 
 	priv = wiphy_priv(wiphy);
 
 
 	if (!pairwise) {
-		PRINT_D(CFG80211_DBG, "Getting group key idx: %x\n", key_index);
-
 		key_params.key = priv->wilc_gtk[key_index]->key;
 		key_params.cipher = priv->wilc_gtk[key_index]->cipher;
 		key_params.key_len = priv->wilc_gtk[key_index]->key_len;
 		key_params.seq = priv->wilc_gtk[key_index]->seq;
 		key_params.seq_len = priv->wilc_gtk[key_index]->seq_len;
-		if (INFO) {
-			for (i = 0; i < key_params.key_len; i++)
-				PRINT_INFO(CFG80211_DBG, "Retrieved key value %x\n", key_params.key[i]);
-		}
 	} else {
-		PRINT_D(CFG80211_DBG, "Getting pairwise  key\n");
-
 		key_params.key = priv->wilc_ptk[key_index]->key;
 		key_params.cipher = priv->wilc_ptk[key_index]->cipher;
 		key_params.key_len = priv->wilc_ptk[key_index]->key_len;
@@ -1337,8 +1181,6 @@ static int set_default_key(struct wiphy *wiphy, struct net_device *netdev, u8 ke
 	priv = wiphy_priv(wiphy);
 	vif = netdev_priv(priv->dev);
 
-	PRINT_D(CFG80211_DBG, "Setting default key with idx = %d\n", key_index);
-
 	wilc_set_wep_default_keyid(vif, key_index);
 
 	return 0;
@@ -1356,10 +1198,6 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev,
 	vif = netdev_priv(dev);
 
 	if (vif->iftype == AP_MODE || vif->iftype == GO_MODE) {
-		PRINT_D(HOSTAPD_DBG, "Getting station parameters\n");
-
-		PRINT_INFO(HOSTAPD_DBG, ": %x%x%x%x%x\n", mac[0], mac[1], mac[2], mac[3], mac[4]);
-
 		for (i = 0; i < NUM_STA_ASSOCIATED; i++) {
 			if (!(memcmp(mac, priv->assoc_stainfo.au8Sta_AssociatedBss[i], ETH_ALEN))) {
 				associatedsta = i;
@@ -1376,7 +1214,6 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev,
 
 		wilc_get_inactive_time(vif, mac, &inactive_time);
 		sinfo->inactive_time = 1000 * inactive_time;
-		PRINT_D(CFG80211_DBG, "Inactive time %d\n", sinfo->inactive_time);
 	}
 
 	if (vif->iftype == STATION_MODE) {
@@ -1408,14 +1245,13 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev,
 static int change_bss(struct wiphy *wiphy, struct net_device *dev,
 		      struct bss_parameters *params)
 {
-	PRINT_D(CFG80211_DBG, "Changing Bss parametrs\n");
 	return 0;
 }
 
 static int set_wiphy_params(struct wiphy *wiphy, u32 changed)
 {
 	s32 s32Error = 0;
-	struct cfg_param_val pstrCfgParamVal;
+	struct cfg_param_attr pstrCfgParamVal;
 	struct wilc_priv *priv;
 	struct wilc_vif *vif;
 
@@ -1423,33 +1259,25 @@ static int set_wiphy_params(struct wiphy *wiphy, u32 changed)
 	vif = netdev_priv(priv->dev);
 
 	pstrCfgParamVal.flag = 0;
-	PRINT_D(CFG80211_DBG, "Setting Wiphy params\n");
 
 	if (changed & WIPHY_PARAM_RETRY_SHORT) {
-		PRINT_D(CFG80211_DBG, "Setting WIPHY_PARAM_RETRY_SHORT %d\n",
-			priv->dev->ieee80211_ptr->wiphy->retry_short);
 		pstrCfgParamVal.flag  |= RETRY_SHORT;
 		pstrCfgParamVal.short_retry_limit = priv->dev->ieee80211_ptr->wiphy->retry_short;
 	}
 	if (changed & WIPHY_PARAM_RETRY_LONG) {
-		PRINT_D(CFG80211_DBG, "Setting WIPHY_PARAM_RETRY_LONG %d\n", priv->dev->ieee80211_ptr->wiphy->retry_long);
 		pstrCfgParamVal.flag |= RETRY_LONG;
 		pstrCfgParamVal.long_retry_limit = priv->dev->ieee80211_ptr->wiphy->retry_long;
 	}
 	if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
-		PRINT_D(CFG80211_DBG, "Setting WIPHY_PARAM_FRAG_THRESHOLD %d\n", priv->dev->ieee80211_ptr->wiphy->frag_threshold);
 		pstrCfgParamVal.flag |= FRAG_THRESHOLD;
 		pstrCfgParamVal.frag_threshold = priv->dev->ieee80211_ptr->wiphy->frag_threshold;
 	}
 
 	if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
-		PRINT_D(CFG80211_DBG, "Setting WIPHY_PARAM_RTS_THRESHOLD %d\n", priv->dev->ieee80211_ptr->wiphy->rts_threshold);
-
 		pstrCfgParamVal.flag |= RTS_THRESHOLD;
 		pstrCfgParamVal.rts_threshold = priv->dev->ieee80211_ptr->wiphy->rts_threshold;
 	}
 
-	PRINT_D(CFG80211_DBG, "Setting CFG params in the host interface\n");
 	s32Error = wilc_hif_set_cfg(vif, &pstrCfgParamVal);
 	if (s32Error)
 		netdev_err(priv->dev, "Error in setting WIPHY PARAMS\n");
@@ -1467,19 +1295,16 @@ static int set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
 	struct wilc_priv *priv = wiphy_priv(wiphy);
 
 	vif = netdev_priv(priv->dev);
-	PRINT_D(CFG80211_DBG, "Setting PMKSA\n");
 
 
 	for (i = 0; i < priv->pmkid_list.numpmkid; i++)	{
 		if (!memcmp(pmksa->bssid, priv->pmkid_list.pmkidlist[i].bssid,
 				 ETH_ALEN)) {
 			flag = PMKID_FOUND;
-			PRINT_D(CFG80211_DBG, "PMKID already exists\n");
 			break;
 		}
 	}
 	if (i < WILC_MAX_NUM_PMKIDS) {
-		PRINT_D(CFG80211_DBG, "Setting PMKID in private structure\n");
 		memcpy(priv->pmkid_list.pmkidlist[i].bssid, pmksa->bssid,
 			    ETH_ALEN);
 		memcpy(priv->pmkid_list.pmkidlist[i].pmkid, pmksa->pmkid,
@@ -1491,10 +1316,9 @@ static int set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
 		s32Error = -EINVAL;
 	}
 
-	if (!s32Error) {
-		PRINT_D(CFG80211_DBG, "Setting pmkid in the host interface\n");
+	if (!s32Error)
 		s32Error = wilc_set_pmkid_info(vif, &priv->pmkid_list);
-	}
+
 	return s32Error;
 }
 
@@ -1506,12 +1330,9 @@ static int del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
 
 	struct wilc_priv *priv = wiphy_priv(wiphy);
 
-	PRINT_D(CFG80211_DBG, "Deleting PMKSA keys\n");
-
 	for (i = 0; i < priv->pmkid_list.numpmkid; i++)	{
 		if (!memcmp(pmksa->bssid, priv->pmkid_list.pmkidlist[i].bssid,
 				 ETH_ALEN)) {
-			PRINT_D(CFG80211_DBG, "Reseting PMKID values\n");
 			memset(&priv->pmkid_list.pmkidlist[i], 0, sizeof(struct host_if_pmkid));
 			break;
 		}
@@ -1538,8 +1359,6 @@ static int flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
 {
 	struct wilc_priv *priv = wiphy_priv(wiphy);
 
-	PRINT_D(CFG80211_DBG,  "Flushing  PMKID key values\n");
-
 	memset(&priv->pmkid_list, 0, sizeof(struct host_if_pmkid_attr));
 
 	return 0;
@@ -1795,8 +1614,6 @@ static int cancel_remain_on_channel(struct wiphy *wiphy,
 	priv = wiphy_priv(wiphy);
 	vif = netdev_priv(priv->dev);
 
-	PRINT_D(CFG80211_DBG, "Cancel remain on channel\n");
-
 	s32Error = wilc_listen_state_expired(vif, priv->strRemainOnChanParams.u32ListenSessionID);
 	return s32Error;
 }
@@ -1979,7 +1796,6 @@ void wilc_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev,
 static int set_cqm_rssi_config(struct wiphy *wiphy, struct net_device *dev,
 			       s32 rssi_thold, u32 rssi_hyst)
 {
-	PRINT_D(CFG80211_DBG, "Setting CQM RSSi Function\n");
 	return 0;
 }
 
@@ -1989,8 +1805,6 @@ static int dump_station(struct wiphy *wiphy, struct net_device *dev,
 	struct wilc_priv *priv;
 	struct wilc_vif *vif;
 
-	PRINT_D(CFG80211_DBG, "Dumping station information\n");
-
 	if (idx != 0)
 		return -ENOENT;
 
@@ -2010,8 +1824,6 @@ static int set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
 	struct wilc_priv *priv;
 	struct wilc_vif *vif;
 
-	PRINT_D(CFG80211_DBG, " Power save Enabled= %d , TimeOut = %d\n", enabled, timeout);
-
 	if (!wiphy)
 		return -ENOENT;
 
@@ -2037,9 +1849,6 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 	vif = netdev_priv(dev);
 	priv = wiphy_priv(wiphy);
 	wl = vif->wilc;
-
-	PRINT_D(HOSTAPD_DBG, "In Change virtual interface function\n");
-	PRINT_D(HOSTAPD_DBG, "Wireless interface name =%s\n", dev->name);
 	p2p_local_random = 0x01;
 	p2p_recv_random = 0x00;
 	wilc_ie = false;
@@ -2049,8 +1858,6 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 	switch (type) {
 	case NL80211_IFTYPE_STATION:
 		wilc_connecting = 0;
-		PRINT_D(HOSTAPD_DBG, "Interface type = NL80211_IFTYPE_STATION\n");
-
 		dev->ieee80211_ptr->iftype = type;
 		priv->wdev->iftype = type;
 		vif->monitor_flag = 0;
@@ -2065,8 +1872,6 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 
 	case NL80211_IFTYPE_P2P_CLIENT:
 		wilc_connecting = 0;
-		PRINT_D(HOSTAPD_DBG, "Interface type = NL80211_IFTYPE_P2P_CLIENT\n");
-
 		dev->ieee80211_ptr->iftype = type;
 		priv->wdev->iftype = type;
 		vif->monitor_flag = 0;
@@ -2079,7 +1884,6 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 
 	case NL80211_IFTYPE_AP:
 		wilc_enable_ps = false;
-		PRINT_D(HOSTAPD_DBG, "Interface type = NL80211_IFTYPE_AP %d\n", type);
 		dev->ieee80211_ptr->iftype = type;
 		priv->wdev->iftype = type;
 		vif->iftype = AP_MODE;
@@ -2096,8 +1900,6 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 		wilc_optaining_ip = true;
 		mod_timer(&wilc_during_ip_timer,
 			  jiffies + msecs_to_jiffies(during_ip_time));
-		PRINT_D(HOSTAPD_DBG, "Interface type = NL80211_IFTYPE_GO\n");
-
 		wilc_set_operation_mode(vif, AP_MODE);
 		dev->ieee80211_ptr->iftype = type;
 		priv->wdev->iftype = type;
@@ -2126,11 +1928,7 @@ static int start_ap(struct wiphy *wiphy, struct net_device *dev,
 
 	priv = wiphy_priv(wiphy);
 	vif = netdev_priv(dev);
-	wl = vif ->wilc;
-	PRINT_D(HOSTAPD_DBG, "Starting ap\n");
-
-	PRINT_D(HOSTAPD_DBG, "Interval = %d\n DTIM period = %d\n Head length = %zu Tail length = %zu\n",
-		settings->beacon_interval, settings->dtim_period, beacon->head_len, beacon->tail_len);
+	wl = vif->wilc;
 
 	s32Error = set_channel(wiphy, &settings->chandef);
 
@@ -2157,8 +1955,6 @@ static int change_beacon(struct wiphy *wiphy, struct net_device *dev,
 
 	priv = wiphy_priv(wiphy);
 	vif = netdev_priv(priv->dev);
-	PRINT_D(HOSTAPD_DBG, "Setting beacon\n");
-
 
 	s32Error = wilc_add_beacon(vif, 0, 0, beacon->head_len,
 				   (u8 *)beacon->head, beacon->tail_len,
@@ -2180,8 +1976,6 @@ static int stop_ap(struct wiphy *wiphy, struct net_device *dev)
 	priv = wiphy_priv(wiphy);
 	vif = netdev_priv(priv->dev);
 
-	PRINT_D(HOSTAPD_DBG, "Deleting beacon\n");
-
 	wilc_wlan_set_bssid(dev, NullBssid, AP_MODE);
 
 	s32Error = wilc_del_beacon(vif);
@@ -2213,14 +2007,6 @@ static int add_station(struct wiphy *wiphy, struct net_device *dev,
 		strStaParams.rates_len = params->supported_rates_len;
 		strStaParams.rates = params->supported_rates;
 
-		PRINT_D(CFG80211_DBG, "Adding station parameters %d\n", params->aid);
-
-		PRINT_D(CFG80211_DBG, "BSSID = %x%x%x%x%x%x\n", priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid][0], priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid][1], priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid][2], priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid][3], priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid][4],
-			priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid][5]);
-		PRINT_D(HOSTAPD_DBG, "ASSOC ID = %d\n", strStaParams.aid);
-		PRINT_D(HOSTAPD_DBG, "Number of supported rates = %d\n",
-			strStaParams.rates_len);
-
 		if (!params->ht_capa) {
 			strStaParams.ht_supported = false;
 		} else {
@@ -2238,23 +2024,6 @@ static int add_station(struct wiphy *wiphy, struct net_device *dev,
 		strStaParams.flags_mask = params->sta_flags_mask;
 		strStaParams.flags_set = params->sta_flags_set;
 
-		PRINT_D(HOSTAPD_DBG, "IS HT supported = %d\n",
-			strStaParams.ht_supported);
-		PRINT_D(HOSTAPD_DBG, "Capability Info = %d\n",
-			strStaParams.ht_capa_info);
-		PRINT_D(HOSTAPD_DBG, "AMPDU Params = %d\n",
-			strStaParams.ht_ampdu_params);
-		PRINT_D(HOSTAPD_DBG, "HT Extended params = %d\n",
-			strStaParams.ht_ext_params);
-		PRINT_D(HOSTAPD_DBG, "Tx Beamforming Cap = %d\n",
-			strStaParams.ht_tx_bf_cap);
-		PRINT_D(HOSTAPD_DBG, "Antenna selection info = %d\n",
-			strStaParams.ht_ante_sel);
-		PRINT_D(HOSTAPD_DBG, "Flag Mask = %d\n",
-			strStaParams.flags_mask);
-		PRINT_D(HOSTAPD_DBG, "Flag Set = %d\n",
-			strStaParams.flags_set);
-
 		s32Error = wilc_add_station(vif, &strStaParams);
 		if (s32Error)
 			netdev_err(dev, "Host add station fail\n");
@@ -2278,16 +2047,9 @@ static int del_station(struct wiphy *wiphy, struct net_device *dev,
 	vif = netdev_priv(dev);
 
 	if (vif->iftype == AP_MODE || vif->iftype == GO_MODE) {
-		PRINT_D(HOSTAPD_DBG, "Deleting station\n");
-
-
-		if (!mac) {
-			PRINT_D(HOSTAPD_DBG, "All associated stations\n");
+		if (!mac)
 			s32Error = wilc_del_allstation(vif,
 				     priv->assoc_stainfo.au8Sta_AssociatedBss);
-		} else {
-			PRINT_D(HOSTAPD_DBG, "With mac address: %x%x%x%x%x%x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
-		}
 
 		s32Error = wilc_del_station(vif, mac);
 
@@ -2305,9 +2067,6 @@ static int change_station(struct wiphy *wiphy, struct net_device *dev,
 	struct add_sta_param strStaParams = { {0} };
 	struct wilc_vif *vif;
 
-
-	PRINT_D(HOSTAPD_DBG, "Change station paramters\n");
-
 	if (!wiphy)
 		return -EFAULT;
 
@@ -2320,14 +2079,6 @@ static int change_station(struct wiphy *wiphy, struct net_device *dev,
 		strStaParams.rates_len = params->supported_rates_len;
 		strStaParams.rates = params->supported_rates;
 
-		PRINT_D(HOSTAPD_DBG, "BSSID = %x%x%x%x%x%x\n",
-			strStaParams.bssid[0], strStaParams.bssid[1],
-			strStaParams.bssid[2], strStaParams.bssid[3],
-			strStaParams.bssid[4], strStaParams.bssid[5]);
-		PRINT_D(HOSTAPD_DBG, "ASSOC ID = %d\n", strStaParams.aid);
-		PRINT_D(HOSTAPD_DBG, "Number of supported rates = %d\n",
-			strStaParams.rates_len);
-
 		if (!params->ht_capa) {
 			strStaParams.ht_supported = false;
 		} else {
@@ -2345,23 +2096,6 @@ static int change_station(struct wiphy *wiphy, struct net_device *dev,
 		strStaParams.flags_mask = params->sta_flags_mask;
 		strStaParams.flags_set = params->sta_flags_set;
 
-		PRINT_D(HOSTAPD_DBG, "IS HT supported = %d\n",
-			strStaParams.ht_supported);
-		PRINT_D(HOSTAPD_DBG, "Capability Info = %d\n",
-			strStaParams.ht_capa_info);
-		PRINT_D(HOSTAPD_DBG, "AMPDU Params = %d\n",
-			strStaParams.ht_ampdu_params);
-		PRINT_D(HOSTAPD_DBG, "HT Extended params = %d\n",
-			strStaParams.ht_ext_params);
-		PRINT_D(HOSTAPD_DBG, "Tx Beamforming Cap = %d\n",
-			strStaParams.ht_tx_bf_cap);
-		PRINT_D(HOSTAPD_DBG, "Antenna selection info = %d\n",
-			strStaParams.ht_ante_sel);
-		PRINT_D(HOSTAPD_DBG, "Flag Mask = %d\n",
-			strStaParams.flags_mask);
-		PRINT_D(HOSTAPD_DBG, "Flag Set = %d\n",
-			strStaParams.flags_set);
-
 		s32Error = wilc_edit_station(vif, &strStaParams);
 		if (s32Error)
 			netdev_err(dev, "Host edit station fail\n");
@@ -2381,20 +2115,12 @@ static struct wireless_dev *add_virtual_intf(struct wiphy *wiphy,
 	struct net_device *new_ifc = NULL;
 
 	priv = wiphy_priv(wiphy);
-
-
-
-	PRINT_D(HOSTAPD_DBG, "Adding monitor interface[%p]\n", priv->wdev->netdev);
-
 	vif = netdev_priv(priv->wdev->netdev);
 
 
 	if (type == NL80211_IFTYPE_MONITOR) {
-		PRINT_D(HOSTAPD_DBG, "Monitor interface mode: Initializing mon interface virtual device driver\n");
-		PRINT_D(HOSTAPD_DBG, "Adding monitor interface[%p]\n", vif->ndev);
 		new_ifc = WILC_WFI_init_mon_interface(name, vif->ndev);
 		if (new_ifc) {
-			PRINT_D(HOSTAPD_DBG, "Setting monitor flag in private structure\n");
 			vif = netdev_priv(priv->wdev->netdev);
 			vif->monitor_flag = 1;
 		}
@@ -2404,7 +2130,6 @@ static struct wireless_dev *add_virtual_intf(struct wiphy *wiphy,
 
 static int del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
 {
-	PRINT_D(HOSTAPD_DBG, "Deleting virtual interface\n");
 	return 0;
 }
 
@@ -2514,42 +2239,10 @@ static struct cfg80211_ops wilc_cfg80211_ops = {
 
 };
 
-int WILC_WFI_update_stats(struct wiphy *wiphy, u32 pktlen, u8 changed)
-{
-	struct wilc_priv *priv;
-
-	priv = wiphy_priv(wiphy);
-	switch (changed) {
-	case WILC_WFI_RX_PKT:
-	{
-		priv->netstats.rx_packets++;
-		priv->netstats.rx_bytes += pktlen;
-		priv->netstats.rx_time = get_jiffies_64();
-	}
-	break;
-
-	case WILC_WFI_TX_PKT:
-	{
-		priv->netstats.tx_packets++;
-		priv->netstats.tx_bytes += pktlen;
-		priv->netstats.tx_time = get_jiffies_64();
-
-	}
-	break;
-
-	default:
-		break;
-	}
-	return 0;
-}
-
 static struct wireless_dev *WILC_WFI_CfgAlloc(void)
 {
 	struct wireless_dev *wdev;
 
-
-	PRINT_D(CFG80211_DBG, "Allocating wireless device\n");
-
 	wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
 	if (!wdev)
 		goto _fail_;
@@ -2580,8 +2273,6 @@ struct wireless_dev *wilc_create_wiphy(struct net_device *net, struct device *de
 	struct wireless_dev *wdev;
 	s32 s32Error = 0;
 
-	PRINT_D(CFG80211_DBG, "Registering wifi device\n");
-
 	wdev = WILC_WFI_CfgAlloc();
 	if (!wdev) {
 		netdev_err(net, "wiphy new allocate failed\n");
@@ -2596,8 +2287,6 @@ struct wireless_dev *wilc_create_wiphy(struct net_device *net, struct device *de
 	wdev->wiphy->wowlan = &wowlan_support;
 #endif
 	wdev->wiphy->max_num_pmkids = WILC_MAX_NUM_PMKIDS;
-	PRINT_INFO(CFG80211_DBG, "Max number of PMKIDs = %d\n", wdev->wiphy->max_num_pmkids);
-
 	wdev->wiphy->max_scan_ie_len = 1000;
 	wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
 	wdev->wiphy->cipher_suites = cipher_suites;
@@ -2610,19 +2299,11 @@ struct wireless_dev *wilc_create_wiphy(struct net_device *net, struct device *de
 	wdev->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
 	wdev->iftype = NL80211_IFTYPE_STATION;
 
-
-
-	PRINT_INFO(CFG80211_DBG, "Max scan ids = %d,Max scan IE len = %d,Signal Type = %d,Interface Modes = %d,Interface Type = %d\n",
-		   wdev->wiphy->max_scan_ssids, wdev->wiphy->max_scan_ie_len, wdev->wiphy->signal_type,
-		   wdev->wiphy->interface_modes, wdev->iftype);
-
 	set_wiphy_dev(wdev->wiphy, dev);
 
 	s32Error = wiphy_register(wdev->wiphy);
 	if (s32Error)
 		netdev_err(net, "Cannot register wiphy device\n");
-	else
-		PRINT_D(CFG80211_DBG, "Successful Registering\n");
 
 	priv->dev = net;
 	return wdev;
@@ -2634,7 +2315,6 @@ int wilc_init_host_int(struct net_device *net)
 
 	struct wilc_priv *priv;
 
-	PRINT_D(INIT_DBG, "Host[%p][%p]\n", net, net->ieee80211_ptr);
 	priv = wdev_priv(net->ieee80211_ptr);
 	if (op_ifcs == 0) {
 		setup_timer(&hAgingTimer, remove_network_from_shadow, 0);
@@ -2683,26 +2363,17 @@ int wilc_deinit_host_int(struct net_device *net)
 
 void wilc_free_wiphy(struct net_device *net)
 {
-	PRINT_D(CFG80211_DBG, "Unregistering wiphy\n");
-
-	if (!net) {
-		PRINT_D(INIT_DBG, "net_device is NULL\n");
+	if (!net)
 		return;
-	}
 
-	if (!net->ieee80211_ptr) {
-		PRINT_D(INIT_DBG, "ieee80211_ptr is NULL\n");
+	if (!net->ieee80211_ptr)
 		return;
-	}
 
-	if (!net->ieee80211_ptr->wiphy) {
-		PRINT_D(INIT_DBG, "wiphy is NULL\n");
+	if (!net->ieee80211_ptr->wiphy)
 		return;
-	}
 
 	wiphy_unregister(net->ieee80211_ptr->wiphy);
 
-	PRINT_D(INIT_DBG, "Freeing wiphy\n");
 	wiphy_free(net->ieee80211_ptr->wiphy);
 	kfree(net->ieee80211_ptr);
 }
diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.h b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.h
index ab53d9d..85a3810 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.h
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.h
@@ -12,7 +12,6 @@
 
 struct wireless_dev *wilc_create_wiphy(struct net_device *net, struct device *dev);
 void wilc_free_wiphy(struct net_device *net);
-int WILC_WFI_update_stats(struct wiphy *wiphy, u32 pktlen, u8 changed);
 int wilc_deinit_host_int(struct net_device *net);
 int wilc_init_host_int(struct net_device *net);
 void WILC_WFI_monitor_rx(u8 *buff, u32 size);
diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h
index 3077f5d4..4123cff 100644
--- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h
+++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h
@@ -35,8 +35,6 @@
 #include <linux/skbuff.h>
 #include <linux/ieee80211.h>
 #include <net/cfg80211.h>
-#include <linux/ieee80211.h>
-#include <net/cfg80211.h>
 #include <net/ieee80211_radiotap.h>
 #include <linux/if_arp.h>
 #include <linux/in6.h>
@@ -228,8 +226,6 @@ int wilc1000_wlan_init(struct net_device *dev, struct wilc_vif *vif);
 
 void wilc_frmw_to_linux(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset);
 void wilc_mac_indicate(struct wilc *wilc, int flag);
-void wilc_dbg(u8 *buff);
-
 int wilc_lock_timeout(struct wilc *wilc, void *, u32 timeout);
 void wilc_netdev_cleanup(struct wilc *wilc);
 int wilc_netdev_init(struct wilc **wilc, struct device *, int io_type, int gpio,
diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c
index a396ac9..0020620 100644
--- a/drivers/staging/wilc1000/wilc_wlan.c
+++ b/drivers/staging/wilc1000/wilc_wlan.c
@@ -3,23 +3,6 @@
 #include "wilc_wfi_netdevice.h"
 #include "wilc_wlan_cfg.h"
 
-static u32 dbgflag = N_INIT | N_ERR | N_INTR | N_TXQ | N_RXQ;
-
-/* FIXME: replace with dev_debug() */
-static void wilc_debug(u32 flag, char *fmt, ...)
-{
-	char buf[256];
-	va_list args;
-
-	if (flag & dbgflag) {
-		va_start(args, fmt);
-		vsprintf(buf, fmt, args);
-		va_end(args);
-
-		wilc_dbg(buf);
-	}
-}
-
 static CHIP_PS_STATE_T chip_ps_state = CHIP_WAKEDUP;
 
 static inline void acquire_bus(struct wilc *wilc, BUS_ACQUIRE_T acquire)
@@ -38,7 +21,6 @@ static inline void release_bus(struct wilc *wilc, BUS_RELEASE_T release)
 
 static void wilc_wlan_txq_remove(struct wilc *wilc, struct txq_entry_t *tqe)
 {
-
 	if (tqe == wilc->txq_head) {
 		wilc->txq_head = tqe->next;
 		if (wilc->txq_head)
@@ -157,7 +139,6 @@ struct pending_acks_info {
 	struct txq_entry_t  *txqe;
 };
 
-
 #define NOT_TCP_ACK			(-1)
 
 #define MAX_TCP_SESSION		25
@@ -207,9 +188,8 @@ static inline int add_tcp_pending_ack(u32 ack, u32 session_index,
 	return 0;
 }
 
-static inline int tcp_process(struct net_device *dev, struct txq_entry_t *tqe)
+static inline void tcp_process(struct net_device *dev, struct txq_entry_t *tqe)
 {
-	int ret;
 	u8 *eth_hdr_ptr;
 	u8 *buffer = tqe->buffer;
 	unsigned short h_proto;
@@ -266,15 +246,9 @@ static inline int tcp_process(struct net_device *dev, struct txq_entry_t *tqe)
 
 				add_tcp_pending_ack(ack_no, i, tqe);
 			}
-
-		} else {
-			ret = 0;
 		}
-	} else {
-		ret = 0;
 	}
 	spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
-	return ret;
 }
 
 static int wilc_wlan_txq_filter_dup_tcp_ack(struct net_device *dev)
@@ -325,7 +299,7 @@ static int wilc_wlan_txq_filter_dup_tcp_ack(struct net_device *dev)
 	return 1;
 }
 
-static bool enabled = false;
+static bool enabled;
 
 void wilc_enable_tcp_ack_filter(bool value)
 {
@@ -452,7 +426,6 @@ static struct txq_entry_t *wilc_wlan_txq_get_next(struct wilc *wilc,
 
 static int wilc_wlan_rxq_add(struct wilc *wilc, struct rxq_entry_t *rqe)
 {
-
 	if (wilc->quit)
 		return 0;
 
@@ -473,7 +446,6 @@ static int wilc_wlan_rxq_add(struct wilc *wilc, struct rxq_entry_t *rqe)
 
 static struct rxq_entry_t *wilc_wlan_rxq_remove(struct wilc *wilc)
 {
-
 	if (wilc->rxq_head) {
 		struct rxq_entry_t *rqe;
 
@@ -500,7 +472,7 @@ EXPORT_SYMBOL_GPL(chip_allow_sleep);
 
 void chip_wakeup(struct wilc *wilc)
 {
-	u32 reg, clk_status_reg, trials = 0;
+	u32 reg, clk_status_reg;
 
 	if ((wilc->io_type & 0x1) == HIF_SPI) {
 		do {
@@ -510,11 +482,8 @@ void chip_wakeup(struct wilc *wilc)
 
 			do {
 				usleep_range(2 * 1000, 2 * 1000);
-				if ((wilc_get_chipid(wilc, true) == 0))
-					wilc_debug(N_ERR, "Couldn't read chip id. Wake up failed\n");
-
-			} while ((wilc_get_chipid(wilc, true) == 0) && ((++trials % 3) == 0));
-
+				wilc_get_chipid(wilc, true);
+			} while (wilc_get_chipid(wilc, true) == 0);
 		} while (wilc_get_chipid(wilc, true) == 0);
 	} else if ((wilc->io_type & 0x1) == HIF_SDIO)	 {
 		wilc->hif_func->hif_write_reg(wilc, 0xfa, 1);
@@ -526,14 +495,11 @@ void chip_wakeup(struct wilc *wilc)
 			wilc->hif_func->hif_read_reg(wilc, 0xf1,
 						     &clk_status_reg);
 
-			while (((clk_status_reg & 0x1) == 0) && (((++trials) % 3) == 0)) {
+			while ((clk_status_reg & 0x1) == 0) {
 				usleep_range(2 * 1000, 2 * 1000);
 
 				wilc->hif_func->hif_read_reg(wilc, 0xf1,
 							     &clk_status_reg);
-
-				if ((clk_status_reg & 0x1) == 0)
-					wilc_debug(N_ERR, "clocks still OFF. Wake up failed\n");
 			}
 			if ((clk_status_reg & 0x1) == 0) {
 				wilc->hif_func->hif_write_reg(wilc, 0xf0,
@@ -1028,7 +994,6 @@ int wilc_wlan_firmware_download(struct wilc *wilc, const u8 *buffer,
 			ret = -EIO;
 			goto _fail_;
 		}
-		PRINT_D(INIT_DBG, "Offset = %d\n", offset);
 	} while (offset < buffer_size);
 
 _fail_:
@@ -1117,12 +1082,6 @@ int wilc_wlan_start(struct wilc *wilc)
 	return (ret < 0) ? ret : 0;
 }
 
-void wilc_wlan_global_reset(struct wilc *wilc)
-{
-	acquire_bus(wilc, ACQUIRE_AND_WAKEUP);
-	wilc->hif_func->hif_write_reg(wilc, WILC_GLB_RESET_0, 0x0);
-	release_bus(wilc, RELEASE_ONLY);
-}
 int wilc_wlan_stop(struct wilc *wilc)
 {
 	u32 reg = 0;
@@ -1342,11 +1301,7 @@ int wilc_wlan_cfg_get(struct wilc_vif *vif, int start, u32 wid, int commit,
 
 int wilc_wlan_cfg_get_val(u32 wid, u8 *buffer, u32 buffer_size)
 {
-	int ret;
-
-	ret = wilc_wlan_cfg_get_wid_value((u16)wid, buffer, buffer_size);
-
-	return ret;
+	return wilc_wlan_cfg_get_wid_value((u16)wid, buffer, buffer_size);
 }
 
 int wilc_send_config_pkt(struct wilc_vif *vif, u8 mode, struct wid *wids,
@@ -1404,18 +1359,18 @@ static u32 init_chip(struct net_device *dev)
 	if ((chipid & 0xfff) != 0xa0) {
 		ret = wilc->hif_func->hif_read_reg(wilc, 0x1118, &reg);
 		if (!ret) {
-			wilc_debug(N_ERR, "[wilc start]: fail read reg 0x1118 ...\n");
+			netdev_err(dev, "fail read reg 0x1118\n");
 			return ret;
 		}
 		reg |= BIT(0);
 		ret = wilc->hif_func->hif_write_reg(wilc, 0x1118, reg);
 		if (!ret) {
-			wilc_debug(N_ERR, "[wilc start]: fail write reg 0x1118 ...\n");
+			netdev_err(dev, "fail write reg 0x1118\n");
 			return ret;
 		}
 		ret = wilc->hif_func->hif_write_reg(wilc, 0xc0000, 0x71);
 		if (!ret) {
-			wilc_debug(N_ERR, "[wilc start]: fail write reg 0xc0000 ...\n");
+			netdev_err(dev, "fail write reg 0xc0000\n");
 			return ret;
 		}
 	}
@@ -1461,8 +1416,6 @@ int wilc_wlan_init(struct net_device *dev)
 
 	wilc = vif->wilc;
 
-	PRINT_D(INIT_DBG, "Initializing WILC_Wlan ...\n");
-
 	wilc->quit = 0;
 
 	if (!wilc->hif_func->hif_init(wilc, false)) {
@@ -1470,7 +1423,7 @@ int wilc_wlan_init(struct net_device *dev)
 		goto _fail_;
 	}
 
-	if (!wilc_wlan_cfg_init(wilc_debug)) {
+	if (!wilc_wlan_cfg_init()) {
 		ret = -ENOBUFS;
 		goto _fail_;
 	}
@@ -1480,7 +1433,6 @@ int wilc_wlan_init(struct net_device *dev)
 
 	if (!wilc->tx_buffer) {
 		ret = -ENOBUFS;
-		PRINT_ER("Can't allocate Tx Buffer");
 		goto _fail_;
 	}
 
@@ -1489,7 +1441,6 @@ int wilc_wlan_init(struct net_device *dev)
 
 	if (!wilc->rx_buffer) {
 		ret = -ENOBUFS;
-		PRINT_ER("Can't allocate Rx Buffer");
 		goto _fail_;
 	}
 
diff --git a/drivers/staging/wilc1000/wilc_wlan.h b/drivers/staging/wilc1000/wilc_wlan.h
index 06d02ab..bcd4bfa 100644
--- a/drivers/staging/wilc1000/wilc_wlan.h
+++ b/drivers/staging/wilc1000/wilc_wlan.h
@@ -128,6 +128,11 @@
 #define WILC_PLL_TO_SPI		2
 #define ABORT_INT		BIT(31)
 
+#define LINUX_RX_SIZE		(96 * 1024)
+#define LINUX_TX_SIZE		(64 * 1024)
+
+#define MODALIAS		"WILC_SPI"
+#define GPIO_NUM		0x44
 /*******************************************/
 /*        E0 and later Interrupt flags.    */
 /*******************************************/
diff --git a/drivers/staging/wilc1000/wilc_wlan_cfg.c b/drivers/staging/wilc1000/wilc_wlan_cfg.c
index 2bb684a..b992243 100644
--- a/drivers/staging/wilc1000/wilc_wlan_cfg.c
+++ b/drivers/staging/wilc1000/wilc_wlan_cfg.c
@@ -19,9 +19,7 @@
  *
  ********************************************/
 
-typedef struct {
-	wilc_debug_func dPrint;
-
+struct wilc_mac_cfg {
 	int mac_status;
 	u8 mac_address[7];
 	u8 ip_address[5];
@@ -40,11 +38,11 @@ typedef struct {
 	u8 firmware_info[8];
 	u8 scan_result[256];
 	u8 scan_result1[256];
-} wilc_mac_cfg_t;
+};
 
-static wilc_mac_cfg_t g_mac;
+static struct wilc_mac_cfg g_mac;
 
-static wilc_cfg_byte_t g_cfg_byte[] = {
+static struct wilc_cfg_byte g_cfg_byte[] = {
 	{WID_BSS_TYPE, 0},
 	{WID_CURRENT_TX_RATE, 0},
 	{WID_CURRENT_CHANNEL, 0},
@@ -87,7 +85,7 @@ static wilc_cfg_byte_t g_cfg_byte[] = {
 	{WID_NIL, 0}
 };
 
-static wilc_cfg_hword_t g_cfg_hword[] = {
+static struct wilc_cfg_hword g_cfg_hword[] = {
 	{WID_LINK_LOSS_THRESHOLD, 0},
 	{WID_RTS_THRESHOLD, 0},
 	{WID_FRAG_THRESHOLD, 0},
@@ -108,7 +106,7 @@ static wilc_cfg_hword_t g_cfg_hword[] = {
 	{WID_NIL, 0}
 };
 
-static wilc_cfg_word_t g_cfg_word[] = {
+static struct wilc_cfg_word g_cfg_word[] = {
 	{WID_FAILED_COUNT, 0},
 	{WID_RETRY_COUNT, 0},
 	{WID_MULTIPLE_RETRY_COUNT, 0},
@@ -131,7 +129,7 @@ static wilc_cfg_word_t g_cfg_word[] = {
 
 };
 
-static wilc_cfg_str_t g_cfg_str[] = {
+static struct wilc_cfg_str g_cfg_str[] = {
 	{WID_SSID, g_mac.ssid},	/* 33 + 1 bytes */
 	{WID_FIRMWARE_VERSION, g_mac.firmware_version},
 	{WID_OPERATIONAL_RATE_SET, g_mac.supp_rate},
@@ -349,7 +347,7 @@ static void wilc_wlan_parse_response_frame(u8 *info, int size)
 
 static int wilc_wlan_parse_info_frame(u8 *info, int size)
 {
-	wilc_mac_cfg_t *pd = &g_mac;
+	struct wilc_mac_cfg *pd = &g_mac;
 	u32 wid, len;
 	int type = WILC_CFG_RSP_STATUS;
 
@@ -389,8 +387,6 @@ int wilc_wlan_cfg_set_wid(u8 *frame, u32 offset, u16 id, u8 *buf, int size)
 		ret = wilc_wlan_cfg_set_str(frame, offset, id, buf, size);
 	} else if (type == 4) {                 /* binary command */
 		ret = wilc_wlan_cfg_set_bin(frame, offset, id, buf, size);
-	} else {
-		g_mac.dPrint(N_ERR, "illegal id\n");
 	}
 
 	return ret;
@@ -481,8 +477,6 @@ int wilc_wlan_cfg_get_wid_value(u16 wid, u8 *buffer, u32 buffer_size)
 			}
 			i++;
 		} while (1);
-	} else {
-		g_mac.dPrint(N_ERR, "[CFG]: illegal type (%08x)\n", wid);
 	}
 
 	return ret;
@@ -537,9 +531,8 @@ int wilc_wlan_cfg_indicate_rx(struct wilc *wilc, u8 *frame, int size,
 	return ret;
 }
 
-int wilc_wlan_cfg_init(wilc_debug_func func)
+int wilc_wlan_cfg_init(void)
 {
-	memset((void *)&g_mac, 0, sizeof(wilc_mac_cfg_t));
-	g_mac.dPrint = func;
+	memset((void *)&g_mac, 0, sizeof(struct wilc_mac_cfg));
 	return 1;
 }
diff --git a/drivers/staging/wilc1000/wilc_wlan_cfg.h b/drivers/staging/wilc1000/wilc_wlan_cfg.h
index 5f74eb8..b8641a2 100644
--- a/drivers/staging/wilc1000/wilc_wlan_cfg.h
+++ b/drivers/staging/wilc1000/wilc_wlan_cfg.h
@@ -10,25 +10,25 @@
 #ifndef WILC_WLAN_CFG_H
 #define WILC_WLAN_CFG_H
 
-typedef struct {
+struct wilc_cfg_byte {
 	u16 id;
 	u16 val;
-} wilc_cfg_byte_t;
+};
 
-typedef struct {
+struct wilc_cfg_hword {
 	u16 id;
 	u16 val;
-} wilc_cfg_hword_t;
+};
 
-typedef struct {
+struct wilc_cfg_word {
 	u32 id;
 	u32 val;
-} wilc_cfg_word_t;
+};
 
-typedef struct {
+struct wilc_cfg_str {
 	u32 id;
 	u8 *str;
-} wilc_cfg_str_t;
+};
 
 struct wilc;
 int wilc_wlan_cfg_set_wid(u8 *frame, u32 offset, u16 id, u8 *buf, int size);
@@ -36,6 +36,6 @@ int wilc_wlan_cfg_get_wid(u8 *frame, u32 offset, u16 id);
 int wilc_wlan_cfg_get_wid_value(u16 wid, u8 *buffer, u32 buffer_size);
 int wilc_wlan_cfg_indicate_rx(struct wilc *wilc, u8 *frame, int size,
 			      struct wilc_cfg_rsp *rsp);
-int wilc_wlan_cfg_init(wilc_debug_func func);
+int wilc_wlan_cfg_init(void);
 
 #endif
diff --git a/drivers/staging/wilc1000/wilc_wlan_if.h b/drivers/staging/wilc1000/wilc_wlan_if.h
index 269c56e..fbe34eb 100644
--- a/drivers/staging/wilc1000/wilc_wlan_if.h
+++ b/drivers/staging/wilc1000/wilc_wlan_if.h
@@ -11,7 +11,6 @@
 #define WILC_WLAN_IF_H
 
 #include <linux/semaphore.h>
-#include "linux_wlan_common.h"
 #include <linux/netdevice.h>
 
 /********************************************
@@ -95,7 +94,7 @@ typedef void (*wilc_tx_complete_func_t)(void *, int);
  *      Wlan Configuration ID
  *
  ********************************************/
-
+#define WILC_MULTICAST_TABLE_SIZE	8
 #define MAX_SSID_LEN            33
 #define MAX_RATES_SUPPORTED     12
 
diff --git a/drivers/staging/wlan-ng/hfa384x.h b/drivers/staging/wlan-ng/hfa384x.h
index 8dfe438..cec6d0b 100644
--- a/drivers/staging/wlan-ng/hfa384x.h
+++ b/drivers/staging/wlan-ng/hfa384x.h
@@ -1360,7 +1360,6 @@ void hfa384x_destroy(hfa384x_t *hw);
 
 int
 hfa384x_corereset(hfa384x_t *hw, int holdtime, int settletime, int genesis);
-int hfa384x_drvr_commtallies(hfa384x_t *hw);
 int hfa384x_drvr_disable(hfa384x_t *hw, u16 macport);
 int hfa384x_drvr_enable(hfa384x_t *hw, u16 macport);
 int hfa384x_drvr_flashdl_enable(hfa384x_t *hw);
@@ -1391,10 +1390,6 @@ static inline int hfa384x_drvr_setconfig16(hfa384x_t *hw, u16 rid, u16 val)
 }
 
 int
-hfa384x_drvr_getconfig_async(hfa384x_t *hw,
-			     u16 rid, ctlx_usercb_t usercb, void *usercb_data);
-
-int
 hfa384x_drvr_setconfig_async(hfa384x_t *hw,
 			     u16 rid,
 			     void *buf,
diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c
index fda8a95..09b4b2c 100644
--- a/drivers/staging/wlan-ng/hfa384x_usb.c
+++ b/drivers/staging/wlan-ng/hfa384x_usb.c
@@ -213,8 +213,6 @@ unlocked_usbctlx_cancel_async(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx);
 
 static void hfa384x_cb_status(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx);
 
-static void hfa384x_cb_rrid(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx);
-
 static int
 usbctlx_get_status(const hfa384x_usb_cmdresp_t *cmdresp,
 		   hfa384x_cmdresult_t *result);
@@ -816,43 +814,6 @@ static void hfa384x_cb_status(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx)
 	}
 }
 
-/*----------------------------------------------------------------
-* hfa384x_cb_rrid
-*
-* CTLX completion handler for async RRID type control exchanges.
-*
-* Note: If the handling is changed here, it should probably be
-*       changed in dorrid as well.
-*
-* Arguments:
-*	hw		hw struct
-*	ctlx		completed CTLX
-*
-* Returns:
-*	nothing
-*
-* Side effects:
-*
-* Call context:
-*	interrupt
-----------------------------------------------------------------*/
-static void hfa384x_cb_rrid(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx)
-{
-	if (ctlx->usercb != NULL) {
-		hfa384x_rridresult_t rridresult;
-
-		if (ctlx->state != CTLX_COMPLETE) {
-			memset(&rridresult, 0, sizeof(rridresult));
-			rridresult.rid = le16_to_cpu(ctlx->outbuf.rridreq.rid);
-		} else {
-			usbctlx_get_rridresult(&ctlx->inbuf.rridresp,
-					       &rridresult);
-		}
-
-		ctlx->usercb(hw, &rridresult, ctlx->usercb_data);
-	}
-}
-
 static inline int hfa384x_docmd_wait(hfa384x_t *hw, hfa384x_metacmd_t *cmd)
 {
 	return hfa384x_docmd(hw, DOWAIT, cmd, NULL, NULL, NULL);
@@ -1735,37 +1696,6 @@ done:
 }
 
 /*----------------------------------------------------------------
-* hfa384x_drvr_commtallies
-*
-* Send a commtallies inquiry to the MAC.  Note that this is an async
-* call that will result in an info frame arriving sometime later.
-*
-* Arguments:
-*	hw		device structure
-*
-* Returns:
-*	zero		success.
-*
-* Side effects:
-*
-* Call context:
-*	process
-----------------------------------------------------------------*/
-int hfa384x_drvr_commtallies(hfa384x_t *hw)
-{
-	hfa384x_metacmd_t cmd;
-
-	cmd.cmd = HFA384x_CMDCODE_INQ;
-	cmd.parm0 = HFA384x_IT_COMMTALLIES;
-	cmd.parm1 = 0;
-	cmd.parm2 = 0;
-
-	hfa384x_docmd_async(hw, &cmd, NULL, NULL, NULL);
-
-	return 0;
-}
-
-/*----------------------------------------------------------------
 * hfa384x_drvr_disable
 *
 * Issues the disable command to stop communications on one of
@@ -2110,41 +2040,6 @@ int hfa384x_drvr_getconfig(hfa384x_t *hw, u16 rid, void *buf, u16 len)
 }
 
 /*----------------------------------------------------------------
- * hfa384x_drvr_getconfig_async
- *
- * Performs the sequence necessary to perform an async read of
- * of a config/info item.
- *
- * Arguments:
- *       hw              device structure
- *       rid             config/info record id (host order)
- *       buf             host side record buffer.  Upon return it will
- *                       contain the body portion of the record (minus the
- *                       RID and len).
- *       len             buffer length (in bytes, should match record length)
- *       cbfn            caller supplied callback, called when the command
- *                       is done (successful or not).
- *       cbfndata        pointer to some caller supplied data that will be
- *                       passed in as an argument to the cbfn.
- *
- * Returns:
- *       nothing         the cbfn gets a status argument identifying if
- *                       any errors occur.
- * Side effects:
- *       Queues an hfa384x_usbcmd_t for subsequent execution.
- *
- * Call context:
- *       Any
- ----------------------------------------------------------------*/
-int
-hfa384x_drvr_getconfig_async(hfa384x_t *hw,
-			     u16 rid, ctlx_usercb_t usercb, void *usercb_data)
-{
-	return hfa384x_dorrid_async(hw, rid, NULL, 0,
-				    hfa384x_cb_rrid, usercb, usercb_data);
-}
-
-/*----------------------------------------------------------------
  * hfa384x_drvr_setconfig_async
  *
  * Performs the sequence necessary to write a config/info item.
diff --git a/drivers/staging/wlan-ng/p80211netdev.c b/drivers/staging/wlan-ng/p80211netdev.c
index a9c1e0b..88255ce 100644
--- a/drivers/staging/wlan-ng/p80211netdev.c
+++ b/drivers/staging/wlan-ng/p80211netdev.c
@@ -328,7 +328,7 @@ static int p80211knetdev_hard_start_xmit(struct sk_buff *skb,
 
 	p80211_wep.data = NULL;
 
-	if (skb == NULL)
+	if (!skb)
 		return NETDEV_TX_OK;
 
 	if (wlandev->state != WLAN_DEVICE_OPEN) {
@@ -388,7 +388,7 @@ static int p80211knetdev_hard_start_xmit(struct sk_buff *skb,
 			goto failed;
 		}
 	}
-	if (wlandev->txframe == NULL) {
+	if (!wlandev->txframe) {
 		result = 1;
 		goto failed;
 	}
@@ -736,7 +736,7 @@ int wlan_setup(wlandevice_t *wlandev, struct device *physdev)
 
 	/* Allocate and initialize the wiphy struct */
 	wiphy = wlan_create_wiphy(physdev, wlandev);
-	if (wiphy == NULL) {
+	if (!wiphy) {
 		dev_err(physdev, "Failed to alloc wiphy.\n");
 		return 1;
 	}
@@ -744,7 +744,7 @@ int wlan_setup(wlandevice_t *wlandev, struct device *physdev)
 	/* Allocate and initialize the struct device */
 	netdev = alloc_netdev(sizeof(struct wireless_dev), "wlan%d",
 			      NET_NAME_UNKNOWN, ether_setup);
-	if (netdev == NULL) {
+	if (!netdev) {
 		dev_err(physdev, "Failed to alloc netdev.\n");
 		wlan_free_wiphy(wiphy);
 		result = 1;
diff --git a/drivers/staging/wlan-ng/prism2usb.c b/drivers/staging/wlan-ng/prism2usb.c
index 194f67e..ae6a53c 100644
--- a/drivers/staging/wlan-ng/prism2usb.c
+++ b/drivers/staging/wlan-ng/prism2usb.c
@@ -177,7 +177,8 @@ static void prism2sta_disconnect_usb(struct usb_interface *interface)
 		tasklet_kill(&hw->completion_bh);
 		tasklet_kill(&hw->reaper_bh);
 
-		flush_scheduled_work();
+		cancel_work_sync(&hw->link_bh);
+		cancel_work_sync(&hw->commsqual_bh);
 
 		/* Now we complete any outstanding commands
 		 * and tell everyone who is waiting for their
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 3327c49..713c63d9 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -898,7 +898,7 @@ static ssize_t unmap_zeroes_data_store(struct config_item *item,
 	da->unmap_zeroes_data = flag;
 	pr_debug("dev[%p]: SE Device Thin Provisioning LBPRZ bit: %d\n",
 		 da->da_dev, flag);
-	return 0;
+	return count;
 }
 
 /*
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index cacd97a..da457e2 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -828,6 +828,50 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
 	return dev;
 }
 
+/*
+ * Check if the underlying struct block_device request_queue supports
+ * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM
+ * in ATA and we need to set TPE=1
+ */
+bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib,
+				       struct request_queue *q, int block_size)
+{
+	if (!blk_queue_discard(q))
+		return false;
+
+	attrib->max_unmap_lba_count = (q->limits.max_discard_sectors << 9) /
+								block_size;
+	/*
+	 * Currently hardcoded to 1 in Linux/SCSI code..
+	 */
+	attrib->max_unmap_block_desc_count = 1;
+	attrib->unmap_granularity = q->limits.discard_granularity / block_size;
+	attrib->unmap_granularity_alignment = q->limits.discard_alignment /
+								block_size;
+	attrib->unmap_zeroes_data = q->limits.discard_zeroes_data;
+	return true;
+}
+EXPORT_SYMBOL(target_configure_unmap_from_queue);
+
+/*
+ * Convert from blocksize advertised to the initiator to the 512 byte
+ * units unconditionally used by the Linux block layer.
+ */
+sector_t target_to_linux_sector(struct se_device *dev, sector_t lb)
+{
+	switch (dev->dev_attrib.block_size) {
+	case 4096:
+		return lb << 3;
+	case 2048:
+		return lb << 2;
+	case 1024:
+		return lb << 1;
+	default:
+		return lb;
+	}
+}
+EXPORT_SYMBOL(target_to_linux_sector);
+
 int target_configure_device(struct se_device *dev)
 {
 	struct se_hba *hba = dev->se_hba;
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index e319570..75f0f08 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -160,25 +160,11 @@ static int fd_configure_device(struct se_device *dev)
 			" block_device blocks: %llu logical_block_size: %d\n",
 			dev_size, div_u64(dev_size, fd_dev->fd_block_size),
 			fd_dev->fd_block_size);
-		/*
-		 * Check if the underlying struct block_device request_queue supports
-		 * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM
-		 * in ATA and we need to set TPE=1
-		 */
-		if (blk_queue_discard(q)) {
-			dev->dev_attrib.max_unmap_lba_count =
-				q->limits.max_discard_sectors;
-			/*
-			 * Currently hardcoded to 1 in Linux/SCSI code..
-			 */
-			dev->dev_attrib.max_unmap_block_desc_count = 1;
-			dev->dev_attrib.unmap_granularity =
-				q->limits.discard_granularity >> 9;
-			dev->dev_attrib.unmap_granularity_alignment =
-				q->limits.discard_alignment;
+
+		if (target_configure_unmap_from_queue(&dev->dev_attrib, q,
+						      fd_dev->fd_block_size))
 			pr_debug("IFILE: BLOCK Discard support available,"
-					" disabled by default\n");
-		}
+				 " disabled by default\n");
 		/*
 		 * Enable write same emulation for IBLOCK and use 0xFFFF as
 		 * the smaller WRITE_SAME(10) only has a two-byte block count.
@@ -490,9 +476,12 @@ fd_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb)
 	if (S_ISBLK(inode->i_mode)) {
 		/* The backend is block device, use discard */
 		struct block_device *bdev = inode->i_bdev;
+		struct se_device *dev = cmd->se_dev;
 
-		ret = blkdev_issue_discard(bdev, lba,
-				nolb, GFP_KERNEL, 0);
+		ret = blkdev_issue_discard(bdev,
+					   target_to_linux_sector(dev, lba),
+					   target_to_linux_sector(dev,  nolb),
+					   GFP_KERNEL, 0);
 		if (ret < 0) {
 			pr_warn("FILEIO: blkdev_issue_discard() failed: %d\n",
 				ret);
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 5a2899f..abe4eb9 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -121,29 +121,11 @@ static int iblock_configure_device(struct se_device *dev)
 	dev->dev_attrib.hw_max_sectors = queue_max_hw_sectors(q);
 	dev->dev_attrib.hw_queue_depth = q->nr_requests;
 
-	/*
-	 * Check if the underlying struct block_device request_queue supports
-	 * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM
-	 * in ATA and we need to set TPE=1
-	 */
-	if (blk_queue_discard(q)) {
-		dev->dev_attrib.max_unmap_lba_count =
-				q->limits.max_discard_sectors;
-
-		/*
-		 * Currently hardcoded to 1 in Linux/SCSI code..
-		 */
-		dev->dev_attrib.max_unmap_block_desc_count = 1;
-		dev->dev_attrib.unmap_granularity =
-				q->limits.discard_granularity >> 9;
-		dev->dev_attrib.unmap_granularity_alignment =
-				q->limits.discard_alignment;
-		dev->dev_attrib.unmap_zeroes_data =
-				q->limits.discard_zeroes_data;
-
+	if (target_configure_unmap_from_queue(&dev->dev_attrib, q,
+					      dev->dev_attrib.hw_block_size))
 		pr_debug("IBLOCK: BLOCK Discard support available,"
-				" disabled by default\n");
-	}
+			 " disabled by default\n");
+
 	/*
 	 * Enable write same emulation for IBLOCK and use 0xFFFF as
 	 * the smaller WRITE_SAME(10) only has a two-byte block count.
@@ -415,9 +397,13 @@ static sense_reason_t
 iblock_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb)
 {
 	struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd;
+	struct se_device *dev = cmd->se_dev;
 	int ret;
 
-	ret = blkdev_issue_discard(bdev, lba, nolb, GFP_KERNEL, 0);
+	ret = blkdev_issue_discard(bdev,
+				   target_to_linux_sector(dev, lba),
+				   target_to_linux_sector(dev,  nolb),
+				   GFP_KERNEL, 0);
 	if (ret < 0) {
 		pr_err("blkdev_issue_discard() failed: %d\n", ret);
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
@@ -433,8 +419,10 @@ iblock_execute_write_same(struct se_cmd *cmd)
 	struct scatterlist *sg;
 	struct bio *bio;
 	struct bio_list list;
-	sector_t block_lba = cmd->t_task_lba;
-	sector_t sectors = sbc_get_write_same_sectors(cmd);
+	struct se_device *dev = cmd->se_dev;
+	sector_t block_lba = target_to_linux_sector(dev, cmd->t_task_lba);
+	sector_t sectors = target_to_linux_sector(dev,
+					sbc_get_write_same_sectors(cmd));
 
 	if (cmd->prot_op) {
 		pr_err("WRITE_SAME: Protection information with IBLOCK"
@@ -648,12 +636,12 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
 		  enum dma_data_direction data_direction)
 {
 	struct se_device *dev = cmd->se_dev;
+	sector_t block_lba = target_to_linux_sector(dev, cmd->t_task_lba);
 	struct iblock_req *ibr;
 	struct bio *bio, *bio_start;
 	struct bio_list list;
 	struct scatterlist *sg;
 	u32 sg_num = sgl_nents;
-	sector_t block_lba;
 	unsigned bio_cnt;
 	int rw = 0;
 	int i;
@@ -679,24 +667,6 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
 		rw = READ;
 	}
 
-	/*
-	 * Convert the blocksize advertised to the initiator to the 512 byte
-	 * units unconditionally used by the Linux block layer.
-	 */
-	if (dev->dev_attrib.block_size == 4096)
-		block_lba = (cmd->t_task_lba << 3);
-	else if (dev->dev_attrib.block_size == 2048)
-		block_lba = (cmd->t_task_lba << 2);
-	else if (dev->dev_attrib.block_size == 1024)
-		block_lba = (cmd->t_task_lba << 1);
-	else if (dev->dev_attrib.block_size == 512)
-		block_lba = cmd->t_task_lba;
-	else {
-		pr_err("Unsupported SCSI -> BLOCK LBA conversion:"
-				" %u\n", dev->dev_attrib.block_size);
-		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
-	}
-
 	ibr = kzalloc(sizeof(struct iblock_req), GFP_KERNEL);
 	if (!ibr)
 		goto fail;
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index dae0750c..db4412f 100644
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -141,7 +141,6 @@ void	transport_dump_vpd_proto_id(struct t10_vpd *, unsigned char *, int);
 int	transport_dump_vpd_assoc(struct t10_vpd *, unsigned char *, int);
 int	transport_dump_vpd_ident_type(struct t10_vpd *, unsigned char *, int);
 int	transport_dump_vpd_ident(struct t10_vpd *, unsigned char *, int);
-bool	target_stop_cmd(struct se_cmd *cmd, unsigned long *flags);
 void	transport_clear_lun_ref(struct se_lun *);
 void	transport_send_task_abort(struct se_cmd *);
 sense_reason_t	target_cmd_size_check(struct se_cmd *cmd, unsigned int size);
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index fcdcb11..82a663b 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -68,23 +68,25 @@ void core_tmr_release_req(struct se_tmr_req *tmr)
 
 	if (dev) {
 		spin_lock_irqsave(&dev->se_tmr_lock, flags);
-		list_del(&tmr->tmr_list);
+		list_del_init(&tmr->tmr_list);
 		spin_unlock_irqrestore(&dev->se_tmr_lock, flags);
 	}
 
 	kfree(tmr);
 }
 
-static void core_tmr_handle_tas_abort(
-	struct se_node_acl *tmr_nacl,
-	struct se_cmd *cmd,
-	int tas)
+static void core_tmr_handle_tas_abort(struct se_cmd *cmd, int tas)
 {
-	bool remove = true;
+	unsigned long flags;
+	bool remove = true, send_tas;
 	/*
 	 * TASK ABORTED status (TAS) bit support
 	 */
-	if ((tmr_nacl && (tmr_nacl != cmd->se_sess->se_node_acl)) && tas) {
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	send_tas = (cmd->transport_state & CMD_T_TAS);
+	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
+	if (send_tas) {
 		remove = false;
 		transport_send_task_abort(cmd);
 	}
@@ -107,6 +109,46 @@ static int target_check_cdb_and_preempt(struct list_head *list,
 	return 1;
 }
 
+static bool __target_check_io_state(struct se_cmd *se_cmd,
+				    struct se_session *tmr_sess, int tas)
+{
+	struct se_session *sess = se_cmd->se_sess;
+
+	assert_spin_locked(&sess->sess_cmd_lock);
+	WARN_ON_ONCE(!irqs_disabled());
+	/*
+	 * If command already reached CMD_T_COMPLETE state within
+	 * target_complete_cmd() or CMD_T_FABRIC_STOP due to shutdown,
+	 * this se_cmd has been passed to fabric driver and will
+	 * not be aborted.
+	 *
+	 * Otherwise, obtain a local se_cmd->cmd_kref now for TMR
+	 * ABORT_TASK + LUN_RESET for CMD_T_ABORTED processing as
+	 * long as se_cmd->cmd_kref is still active unless zero.
+	 */
+	spin_lock(&se_cmd->t_state_lock);
+	if (se_cmd->transport_state & (CMD_T_COMPLETE | CMD_T_FABRIC_STOP)) {
+		pr_debug("Attempted to abort io tag: %llu already complete or"
+			" fabric stop, skipping\n", se_cmd->tag);
+		spin_unlock(&se_cmd->t_state_lock);
+		return false;
+	}
+	if (sess->sess_tearing_down || se_cmd->cmd_wait_set) {
+		pr_debug("Attempted to abort io tag: %llu already shutdown,"
+			" skipping\n", se_cmd->tag);
+		spin_unlock(&se_cmd->t_state_lock);
+		return false;
+	}
+	se_cmd->transport_state |= CMD_T_ABORTED;
+
+	if ((tmr_sess != se_cmd->se_sess) && tas)
+		se_cmd->transport_state |= CMD_T_TAS;
+
+	spin_unlock(&se_cmd->t_state_lock);
+
+	return kref_get_unless_zero(&se_cmd->cmd_kref);
+}
+
 void core_tmr_abort_task(
 	struct se_device *dev,
 	struct se_tmr_req *tmr,
@@ -130,34 +172,22 @@ void core_tmr_abort_task(
 		if (tmr->ref_task_tag != ref_tag)
 			continue;
 
-		if (!kref_get_unless_zero(&se_cmd->cmd_kref))
-			continue;
-
 		printk("ABORT_TASK: Found referenced %s task_tag: %llu\n",
 			se_cmd->se_tfo->get_fabric_name(), ref_tag);
 
-		spin_lock(&se_cmd->t_state_lock);
-		if (se_cmd->transport_state & CMD_T_COMPLETE) {
-			printk("ABORT_TASK: ref_tag: %llu already complete,"
-			       " skipping\n", ref_tag);
-			spin_unlock(&se_cmd->t_state_lock);
+		if (!__target_check_io_state(se_cmd, se_sess, 0)) {
 			spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
-
 			target_put_sess_cmd(se_cmd);
-
 			goto out;
 		}
-		se_cmd->transport_state |= CMD_T_ABORTED;
-		spin_unlock(&se_cmd->t_state_lock);
-
 		list_del_init(&se_cmd->se_cmd_list);
 		spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
 
 		cancel_work_sync(&se_cmd->work);
 		transport_wait_for_tasks(se_cmd);
 
-		target_put_sess_cmd(se_cmd);
 		transport_cmd_finish_abort(se_cmd, true);
+		target_put_sess_cmd(se_cmd);
 
 		printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for"
 				" ref_tag: %llu\n", ref_tag);
@@ -178,9 +208,11 @@ static void core_tmr_drain_tmr_list(
 	struct list_head *preempt_and_abort_list)
 {
 	LIST_HEAD(drain_tmr_list);
+	struct se_session *sess;
 	struct se_tmr_req *tmr_p, *tmr_pp;
 	struct se_cmd *cmd;
 	unsigned long flags;
+	bool rc;
 	/*
 	 * Release all pending and outgoing TMRs aside from the received
 	 * LUN_RESET tmr..
@@ -206,17 +238,39 @@ static void core_tmr_drain_tmr_list(
 		if (target_check_cdb_and_preempt(preempt_and_abort_list, cmd))
 			continue;
 
+		sess = cmd->se_sess;
+		if (WARN_ON_ONCE(!sess))
+			continue;
+
+		spin_lock(&sess->sess_cmd_lock);
 		spin_lock(&cmd->t_state_lock);
-		if (!(cmd->transport_state & CMD_T_ACTIVE)) {
+		if (!(cmd->transport_state & CMD_T_ACTIVE) ||
+		     (cmd->transport_state & CMD_T_FABRIC_STOP)) {
 			spin_unlock(&cmd->t_state_lock);
+			spin_unlock(&sess->sess_cmd_lock);
 			continue;
 		}
 		if (cmd->t_state == TRANSPORT_ISTATE_PROCESSING) {
 			spin_unlock(&cmd->t_state_lock);
+			spin_unlock(&sess->sess_cmd_lock);
 			continue;
 		}
+		if (sess->sess_tearing_down || cmd->cmd_wait_set) {
+			spin_unlock(&cmd->t_state_lock);
+			spin_unlock(&sess->sess_cmd_lock);
+			continue;
+		}
+		cmd->transport_state |= CMD_T_ABORTED;
 		spin_unlock(&cmd->t_state_lock);
 
+		rc = kref_get_unless_zero(&cmd->cmd_kref);
+		if (!rc) {
+			printk("LUN_RESET TMR: non-zero kref_get_unless_zero\n");
+			spin_unlock(&sess->sess_cmd_lock);
+			continue;
+		}
+		spin_unlock(&sess->sess_cmd_lock);
+
 		list_move_tail(&tmr_p->tmr_list, &drain_tmr_list);
 	}
 	spin_unlock_irqrestore(&dev->se_tmr_lock, flags);
@@ -230,20 +284,26 @@ static void core_tmr_drain_tmr_list(
 			(preempt_and_abort_list) ? "Preempt" : "", tmr_p,
 			tmr_p->function, tmr_p->response, cmd->t_state);
 
+		cancel_work_sync(&cmd->work);
+		transport_wait_for_tasks(cmd);
+
 		transport_cmd_finish_abort(cmd, 1);
+		target_put_sess_cmd(cmd);
 	}
 }
 
 static void core_tmr_drain_state_list(
 	struct se_device *dev,
 	struct se_cmd *prout_cmd,
-	struct se_node_acl *tmr_nacl,
+	struct se_session *tmr_sess,
 	int tas,
 	struct list_head *preempt_and_abort_list)
 {
 	LIST_HEAD(drain_task_list);
+	struct se_session *sess;
 	struct se_cmd *cmd, *next;
 	unsigned long flags;
+	int rc;
 
 	/*
 	 * Complete outstanding commands with TASK_ABORTED SAM status.
@@ -282,6 +342,16 @@ static void core_tmr_drain_state_list(
 		if (prout_cmd == cmd)
 			continue;
 
+		sess = cmd->se_sess;
+		if (WARN_ON_ONCE(!sess))
+			continue;
+
+		spin_lock(&sess->sess_cmd_lock);
+		rc = __target_check_io_state(cmd, tmr_sess, tas);
+		spin_unlock(&sess->sess_cmd_lock);
+		if (!rc)
+			continue;
+
 		list_move_tail(&cmd->state_list, &drain_task_list);
 		cmd->state_active = false;
 	}
@@ -289,7 +359,7 @@ static void core_tmr_drain_state_list(
 
 	while (!list_empty(&drain_task_list)) {
 		cmd = list_entry(drain_task_list.next, struct se_cmd, state_list);
-		list_del(&cmd->state_list);
+		list_del_init(&cmd->state_list);
 
 		pr_debug("LUN_RESET: %s cmd: %p"
 			" ITT/CmdSN: 0x%08llx/0x%08x, i_state: %d, t_state: %d"
@@ -313,16 +383,11 @@ static void core_tmr_drain_state_list(
 		 * loop above, but we do it down here given that
 		 * cancel_work_sync may block.
 		 */
-		if (cmd->t_state == TRANSPORT_COMPLETE)
-			cancel_work_sync(&cmd->work);
-
-		spin_lock_irqsave(&cmd->t_state_lock, flags);
-		target_stop_cmd(cmd, &flags);
-
-		cmd->transport_state |= CMD_T_ABORTED;
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+		cancel_work_sync(&cmd->work);
+		transport_wait_for_tasks(cmd);
 
-		core_tmr_handle_tas_abort(tmr_nacl, cmd, tas);
+		core_tmr_handle_tas_abort(cmd, tas);
+		target_put_sess_cmd(cmd);
 	}
 }
 
@@ -334,6 +399,7 @@ int core_tmr_lun_reset(
 {
 	struct se_node_acl *tmr_nacl = NULL;
 	struct se_portal_group *tmr_tpg = NULL;
+	struct se_session *tmr_sess = NULL;
 	int tas;
         /*
 	 * TASK_ABORTED status bit, this is configurable via ConfigFS
@@ -352,8 +418,9 @@ int core_tmr_lun_reset(
 	 * or struct se_device passthrough..
 	 */
 	if (tmr && tmr->task_cmd && tmr->task_cmd->se_sess) {
-		tmr_nacl = tmr->task_cmd->se_sess->se_node_acl;
-		tmr_tpg = tmr->task_cmd->se_sess->se_tpg;
+		tmr_sess = tmr->task_cmd->se_sess;
+		tmr_nacl = tmr_sess->se_node_acl;
+		tmr_tpg = tmr_sess->se_tpg;
 		if (tmr_nacl && tmr_tpg) {
 			pr_debug("LUN_RESET: TMR caller fabric: %s"
 				" initiator port %s\n",
@@ -366,7 +433,7 @@ int core_tmr_lun_reset(
 		dev->transport->name, tas);
 
 	core_tmr_drain_tmr_list(dev, tmr, preempt_and_abort_list);
-	core_tmr_drain_state_list(dev, prout_cmd, tmr_nacl, tas,
+	core_tmr_drain_state_list(dev, prout_cmd, tmr_sess, tas,
 				preempt_and_abort_list);
 
 	/*
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 9f3608e..867bc6d 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -534,9 +534,6 @@ void transport_deregister_session(struct se_session *se_sess)
 }
 EXPORT_SYMBOL(transport_deregister_session);
 
-/*
- * Called with cmd->t_state_lock held.
- */
 static void target_remove_from_state_list(struct se_cmd *cmd)
 {
 	struct se_device *dev = cmd->se_dev;
@@ -561,10 +558,6 @@ static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists,
 {
 	unsigned long flags;
 
-	spin_lock_irqsave(&cmd->t_state_lock, flags);
-	if (write_pending)
-		cmd->t_state = TRANSPORT_WRITE_PENDING;
-
 	if (remove_from_lists) {
 		target_remove_from_state_list(cmd);
 
@@ -574,6 +567,10 @@ static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists,
 		cmd->se_lun = NULL;
 	}
 
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	if (write_pending)
+		cmd->t_state = TRANSPORT_WRITE_PENDING;
+
 	/*
 	 * Determine if frontend context caller is requesting the stopping of
 	 * this command for frontend exceptions.
@@ -627,6 +624,8 @@ static void transport_lun_remove_cmd(struct se_cmd *cmd)
 
 void transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
 {
+	bool ack_kref = (cmd->se_cmd_flags & SCF_ACK_KREF);
+
 	if (cmd->se_cmd_flags & SCF_SE_LUN_CMD)
 		transport_lun_remove_cmd(cmd);
 	/*
@@ -638,7 +637,7 @@ void transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
 
 	if (transport_cmd_check_stop_to_fabric(cmd))
 		return;
-	if (remove)
+	if (remove && ack_kref)
 		transport_put_cmd(cmd);
 }
 
@@ -694,19 +693,10 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
 	}
 
 	/*
-	 * See if we are waiting to complete for an exception condition.
-	 */
-	if (cmd->transport_state & CMD_T_REQUEST_STOP) {
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-		complete(&cmd->task_stop_comp);
-		return;
-	}
-
-	/*
 	 * Check for case where an explicit ABORT_TASK has been received
 	 * and transport_wait_for_tasks() will be waiting for completion..
 	 */
-	if (cmd->transport_state & CMD_T_ABORTED &&
+	if (cmd->transport_state & CMD_T_ABORTED ||
 	    cmd->transport_state & CMD_T_STOP) {
 		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 		complete_all(&cmd->t_transport_stop_comp);
@@ -721,10 +711,10 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
 	cmd->transport_state |= (CMD_T_COMPLETE | CMD_T_ACTIVE);
 	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 
-	if (cmd->cpuid == -1)
-		queue_work(target_completion_wq, &cmd->work);
-	else
+	if (cmd->se_cmd_flags & SCF_USE_CPUID)
 		queue_work_on(cmd->cpuid, target_completion_wq, &cmd->work);
+	else
+		queue_work(target_completion_wq, &cmd->work);
 }
 EXPORT_SYMBOL(target_complete_cmd);
 
@@ -1203,7 +1193,6 @@ void transport_init_se_cmd(
 	INIT_LIST_HEAD(&cmd->state_list);
 	init_completion(&cmd->t_transport_stop_comp);
 	init_completion(&cmd->cmd_wait_comp);
-	init_completion(&cmd->task_stop_comp);
 	spin_lock_init(&cmd->t_state_lock);
 	kref_init(&cmd->cmd_kref);
 	cmd->transport_state = CMD_T_DEV_ACTIVE;
@@ -1437,6 +1426,12 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess
 	 */
 	transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess,
 				data_length, data_dir, task_attr, sense);
+
+	if (flags & TARGET_SCF_USE_CPUID)
+		se_cmd->se_cmd_flags |= SCF_USE_CPUID;
+	else
+		se_cmd->cpuid = WORK_CPU_UNBOUND;
+
 	if (flags & TARGET_SCF_UNKNOWN_SIZE)
 		se_cmd->unknown_data_length = 1;
 	/*
@@ -1635,33 +1630,6 @@ int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
 EXPORT_SYMBOL(target_submit_tmr);
 
 /*
- * If the cmd is active, request it to be stopped and sleep until it
- * has completed.
- */
-bool target_stop_cmd(struct se_cmd *cmd, unsigned long *flags)
-	__releases(&cmd->t_state_lock)
-	__acquires(&cmd->t_state_lock)
-{
-	bool was_active = false;
-
-	if (cmd->transport_state & CMD_T_BUSY) {
-		cmd->transport_state |= CMD_T_REQUEST_STOP;
-		spin_unlock_irqrestore(&cmd->t_state_lock, *flags);
-
-		pr_debug("cmd %p waiting to complete\n", cmd);
-		wait_for_completion(&cmd->task_stop_comp);
-		pr_debug("cmd %p stopped successfully\n", cmd);
-
-		spin_lock_irqsave(&cmd->t_state_lock, *flags);
-		cmd->transport_state &= ~CMD_T_REQUEST_STOP;
-		cmd->transport_state &= ~CMD_T_BUSY;
-		was_active = true;
-	}
-
-	return was_active;
-}
-
-/*
  * Handle SAM-esque emulation for generic transport request failures.
  */
 void transport_generic_request_failure(struct se_cmd *cmd,
@@ -1859,19 +1827,21 @@ static bool target_handle_task_attr(struct se_cmd *cmd)
 	return true;
 }
 
+static int __transport_check_aborted_status(struct se_cmd *, int);
+
 void target_execute_cmd(struct se_cmd *cmd)
 {
 	/*
-	 * If the received CDB has aleady been aborted stop processing it here.
-	 */
-	if (transport_check_aborted_status(cmd, 1))
-		return;
-
-	/*
 	 * Determine if frontend context caller is requesting the stopping of
 	 * this command for frontend exceptions.
+	 *
+	 * If the received CDB has aleady been aborted stop processing it here.
 	 */
 	spin_lock_irq(&cmd->t_state_lock);
+	if (__transport_check_aborted_status(cmd, 1)) {
+		spin_unlock_irq(&cmd->t_state_lock);
+		return;
+	}
 	if (cmd->transport_state & CMD_T_STOP) {
 		pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08llx\n",
 			__func__, __LINE__, cmd->tag);
@@ -2222,20 +2192,14 @@ static inline void transport_free_pages(struct se_cmd *cmd)
 }
 
 /**
- * transport_release_cmd - free a command
- * @cmd:       command to free
+ * transport_put_cmd - release a reference to a command
+ * @cmd:       command to release
  *
- * This routine unconditionally frees a command, and reference counting
- * or list removal must be done in the caller.
+ * This routine releases our reference to the command and frees it if possible.
  */
-static int transport_release_cmd(struct se_cmd *cmd)
+static int transport_put_cmd(struct se_cmd *cmd)
 {
 	BUG_ON(!cmd->se_tfo);
-
-	if (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
-		core_tmr_release_req(cmd->se_tmr_req);
-	if (cmd->t_task_cdb != cmd->__t_task_cdb)
-		kfree(cmd->t_task_cdb);
 	/*
 	 * If this cmd has been setup with target_get_sess_cmd(), drop
 	 * the kref and call ->release_cmd() in kref callback.
@@ -2243,18 +2207,6 @@ static int transport_release_cmd(struct se_cmd *cmd)
 	return target_put_sess_cmd(cmd);
 }
 
-/**
- * transport_put_cmd - release a reference to a command
- * @cmd:       command to release
- *
- * This routine releases our reference to the command and frees it if possible.
- */
-static int transport_put_cmd(struct se_cmd *cmd)
-{
-	transport_free_pages(cmd);
-	return transport_release_cmd(cmd);
-}
-
 void *transport_kmap_data_sg(struct se_cmd *cmd)
 {
 	struct scatterlist *sg = cmd->t_data_sg;
@@ -2450,34 +2402,58 @@ static void transport_write_pending_qf(struct se_cmd *cmd)
 	}
 }
 
-int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks)
+static bool
+__transport_wait_for_tasks(struct se_cmd *, bool, bool *, bool *,
+			   unsigned long *flags);
+
+static void target_wait_free_cmd(struct se_cmd *cmd, bool *aborted, bool *tas)
 {
 	unsigned long flags;
+
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	__transport_wait_for_tasks(cmd, true, aborted, tas, &flags);
+	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+}
+
+int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks)
+{
 	int ret = 0;
+	bool aborted = false, tas = false;
 
 	if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD)) {
 		if (wait_for_tasks && (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB))
-			 transport_wait_for_tasks(cmd);
+			target_wait_free_cmd(cmd, &aborted, &tas);
 
-		ret = transport_release_cmd(cmd);
+		if (!aborted || tas)
+			ret = transport_put_cmd(cmd);
 	} else {
 		if (wait_for_tasks)
-			transport_wait_for_tasks(cmd);
+			target_wait_free_cmd(cmd, &aborted, &tas);
 		/*
 		 * Handle WRITE failure case where transport_generic_new_cmd()
 		 * has already added se_cmd to state_list, but fabric has
 		 * failed command before I/O submission.
 		 */
-		if (cmd->state_active) {
-			spin_lock_irqsave(&cmd->t_state_lock, flags);
+		if (cmd->state_active)
 			target_remove_from_state_list(cmd);
-			spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-		}
 
 		if (cmd->se_lun)
 			transport_lun_remove_cmd(cmd);
 
-		ret = transport_put_cmd(cmd);
+		if (!aborted || tas)
+			ret = transport_put_cmd(cmd);
+	}
+	/*
+	 * If the task has been internally aborted due to TMR ABORT_TASK
+	 * or LUN_RESET, target_core_tmr.c is responsible for performing
+	 * the remaining calls to target_put_sess_cmd(), and not the
+	 * callers of this function.
+	 */
+	if (aborted) {
+		pr_debug("Detected CMD_T_ABORTED for ITT: %llu\n", cmd->tag);
+		wait_for_completion(&cmd->cmd_wait_comp);
+		cmd->se_tfo->release_cmd(cmd);
+		ret = 1;
 	}
 	return ret;
 }
@@ -2517,26 +2493,46 @@ out:
 }
 EXPORT_SYMBOL(target_get_sess_cmd);
 
+static void target_free_cmd_mem(struct se_cmd *cmd)
+{
+	transport_free_pages(cmd);
+
+	if (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
+		core_tmr_release_req(cmd->se_tmr_req);
+	if (cmd->t_task_cdb != cmd->__t_task_cdb)
+		kfree(cmd->t_task_cdb);
+}
+
 static void target_release_cmd_kref(struct kref *kref)
 {
 	struct se_cmd *se_cmd = container_of(kref, struct se_cmd, cmd_kref);
 	struct se_session *se_sess = se_cmd->se_sess;
 	unsigned long flags;
+	bool fabric_stop;
 
 	spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
 	if (list_empty(&se_cmd->se_cmd_list)) {
 		spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+		target_free_cmd_mem(se_cmd);
 		se_cmd->se_tfo->release_cmd(se_cmd);
 		return;
 	}
-	if (se_sess->sess_tearing_down && se_cmd->cmd_wait_set) {
+
+	spin_lock(&se_cmd->t_state_lock);
+	fabric_stop = (se_cmd->transport_state & CMD_T_FABRIC_STOP);
+	spin_unlock(&se_cmd->t_state_lock);
+
+	if (se_cmd->cmd_wait_set || fabric_stop) {
+		list_del_init(&se_cmd->se_cmd_list);
 		spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+		target_free_cmd_mem(se_cmd);
 		complete(&se_cmd->cmd_wait_comp);
 		return;
 	}
-	list_del(&se_cmd->se_cmd_list);
+	list_del_init(&se_cmd->se_cmd_list);
 	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
 
+	target_free_cmd_mem(se_cmd);
 	se_cmd->se_tfo->release_cmd(se_cmd);
 }
 
@@ -2548,6 +2544,7 @@ int target_put_sess_cmd(struct se_cmd *se_cmd)
 	struct se_session *se_sess = se_cmd->se_sess;
 
 	if (!se_sess) {
+		target_free_cmd_mem(se_cmd);
 		se_cmd->se_tfo->release_cmd(se_cmd);
 		return 1;
 	}
@@ -2564,6 +2561,7 @@ void target_sess_cmd_list_set_waiting(struct se_session *se_sess)
 {
 	struct se_cmd *se_cmd;
 	unsigned long flags;
+	int rc;
 
 	spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
 	if (se_sess->sess_tearing_down) {
@@ -2573,8 +2571,15 @@ void target_sess_cmd_list_set_waiting(struct se_session *se_sess)
 	se_sess->sess_tearing_down = 1;
 	list_splice_init(&se_sess->sess_cmd_list, &se_sess->sess_wait_list);
 
-	list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list)
-		se_cmd->cmd_wait_set = 1;
+	list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list) {
+		rc = kref_get_unless_zero(&se_cmd->cmd_kref);
+		if (rc) {
+			se_cmd->cmd_wait_set = 1;
+			spin_lock(&se_cmd->t_state_lock);
+			se_cmd->transport_state |= CMD_T_FABRIC_STOP;
+			spin_unlock(&se_cmd->t_state_lock);
+		}
+	}
 
 	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
 }
@@ -2587,15 +2592,25 @@ void target_wait_for_sess_cmds(struct se_session *se_sess)
 {
 	struct se_cmd *se_cmd, *tmp_cmd;
 	unsigned long flags;
+	bool tas;
 
 	list_for_each_entry_safe(se_cmd, tmp_cmd,
 				&se_sess->sess_wait_list, se_cmd_list) {
-		list_del(&se_cmd->se_cmd_list);
+		list_del_init(&se_cmd->se_cmd_list);
 
 		pr_debug("Waiting for se_cmd: %p t_state: %d, fabric state:"
 			" %d\n", se_cmd, se_cmd->t_state,
 			se_cmd->se_tfo->get_cmd_state(se_cmd));
 
+		spin_lock_irqsave(&se_cmd->t_state_lock, flags);
+		tas = (se_cmd->transport_state & CMD_T_TAS);
+		spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
+
+		if (!target_put_sess_cmd(se_cmd)) {
+			if (tas)
+				target_put_sess_cmd(se_cmd);
+		}
+
 		wait_for_completion(&se_cmd->cmd_wait_comp);
 		pr_debug("After cmd_wait_comp: se_cmd: %p t_state: %d"
 			" fabric state: %d\n", se_cmd, se_cmd->t_state,
@@ -2617,53 +2632,75 @@ void transport_clear_lun_ref(struct se_lun *lun)
 	wait_for_completion(&lun->lun_ref_comp);
 }
 
-/**
- * transport_wait_for_tasks - wait for completion to occur
- * @cmd:	command to wait
- *
- * Called from frontend fabric context to wait for storage engine
- * to pause and/or release frontend generated struct se_cmd.
- */
-bool transport_wait_for_tasks(struct se_cmd *cmd)
+static bool
+__transport_wait_for_tasks(struct se_cmd *cmd, bool fabric_stop,
+			   bool *aborted, bool *tas, unsigned long *flags)
+	__releases(&cmd->t_state_lock)
+	__acquires(&cmd->t_state_lock)
 {
-	unsigned long flags;
 
-	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	assert_spin_locked(&cmd->t_state_lock);
+	WARN_ON_ONCE(!irqs_disabled());
+
+	if (fabric_stop)
+		cmd->transport_state |= CMD_T_FABRIC_STOP;
+
+	if (cmd->transport_state & CMD_T_ABORTED)
+		*aborted = true;
+
+	if (cmd->transport_state & CMD_T_TAS)
+		*tas = true;
+
 	if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD) &&
-	    !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+	    !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB))
 		return false;
-	}
 
 	if (!(cmd->se_cmd_flags & SCF_SUPPORTED_SAM_OPCODE) &&
-	    !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+	    !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB))
 		return false;
-	}
 
-	if (!(cmd->transport_state & CMD_T_ACTIVE)) {
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+	if (!(cmd->transport_state & CMD_T_ACTIVE))
+		return false;
+
+	if (fabric_stop && *aborted)
 		return false;
-	}
 
 	cmd->transport_state |= CMD_T_STOP;
 
-	pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08llx i_state: %d, t_state: %d, CMD_T_STOP\n",
-		cmd, cmd->tag, cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
+	pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08llx i_state: %d,"
+		 " t_state: %d, CMD_T_STOP\n", cmd, cmd->tag,
+		 cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
 
-	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+	spin_unlock_irqrestore(&cmd->t_state_lock, *flags);
 
 	wait_for_completion(&cmd->t_transport_stop_comp);
 
-	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	spin_lock_irqsave(&cmd->t_state_lock, *flags);
 	cmd->transport_state &= ~(CMD_T_ACTIVE | CMD_T_STOP);
 
-	pr_debug("wait_for_tasks: Stopped wait_for_completion(&cmd->t_transport_stop_comp) for ITT: 0x%08llx\n",
-		cmd->tag);
+	pr_debug("wait_for_tasks: Stopped wait_for_completion(&cmd->"
+		 "t_transport_stop_comp) for ITT: 0x%08llx\n", cmd->tag);
 
+	return true;
+}
+
+/**
+ * transport_wait_for_tasks - wait for completion to occur
+ * @cmd:	command to wait
+ *
+ * Called from frontend fabric context to wait for storage engine
+ * to pause and/or release frontend generated struct se_cmd.
+ */
+bool transport_wait_for_tasks(struct se_cmd *cmd)
+{
+	unsigned long flags;
+	bool ret, aborted = false, tas = false;
+
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	ret = __transport_wait_for_tasks(cmd, false, &aborted, &tas, &flags);
 	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 
-	return true;
+	return ret;
 }
 EXPORT_SYMBOL(transport_wait_for_tasks);
 
@@ -2845,28 +2882,49 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd,
 }
 EXPORT_SYMBOL(transport_send_check_condition_and_sense);
 
-int transport_check_aborted_status(struct se_cmd *cmd, int send_status)
+static int __transport_check_aborted_status(struct se_cmd *cmd, int send_status)
+	__releases(&cmd->t_state_lock)
+	__acquires(&cmd->t_state_lock)
 {
+	assert_spin_locked(&cmd->t_state_lock);
+	WARN_ON_ONCE(!irqs_disabled());
+
 	if (!(cmd->transport_state & CMD_T_ABORTED))
 		return 0;
-
 	/*
 	 * If cmd has been aborted but either no status is to be sent or it has
 	 * already been sent, just return
 	 */
-	if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS))
+	if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS)) {
+		if (send_status)
+			cmd->se_cmd_flags |= SCF_SEND_DELAYED_TAS;
 		return 1;
+	}
 
-	pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08llx\n",
-		 cmd->t_task_cdb[0], cmd->tag);
+	pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB:"
+		" 0x%02x ITT: 0x%08llx\n", cmd->t_task_cdb[0], cmd->tag);
 
 	cmd->se_cmd_flags &= ~SCF_SEND_DELAYED_TAS;
 	cmd->scsi_status = SAM_STAT_TASK_ABORTED;
 	trace_target_cmd_complete(cmd);
+
+	spin_unlock_irq(&cmd->t_state_lock);
 	cmd->se_tfo->queue_status(cmd);
+	spin_lock_irq(&cmd->t_state_lock);
 
 	return 1;
 }
+
+int transport_check_aborted_status(struct se_cmd *cmd, int send_status)
+{
+	int ret;
+
+	spin_lock_irq(&cmd->t_state_lock);
+	ret = __transport_check_aborted_status(cmd, send_status);
+	spin_unlock_irq(&cmd->t_state_lock);
+
+	return ret;
+}
 EXPORT_SYMBOL(transport_check_aborted_status);
 
 void transport_send_task_abort(struct se_cmd *cmd)
@@ -2888,11 +2946,17 @@ void transport_send_task_abort(struct se_cmd *cmd)
 	 */
 	if (cmd->data_direction == DMA_TO_DEVICE) {
 		if (cmd->se_tfo->write_pending_status(cmd) != 0) {
-			cmd->transport_state |= CMD_T_ABORTED;
+			spin_lock_irqsave(&cmd->t_state_lock, flags);
+			if (cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS) {
+				spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+				goto send_abort;
+			}
 			cmd->se_cmd_flags |= SCF_SEND_DELAYED_TAS;
+			spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 			return;
 		}
 	}
+send_abort:
 	cmd->scsi_status = SAM_STAT_TASK_ABORTED;
 
 	transport_lun_remove_cmd(cmd);
@@ -2909,8 +2973,17 @@ static void target_tmr_work(struct work_struct *work)
 	struct se_cmd *cmd = container_of(work, struct se_cmd, work);
 	struct se_device *dev = cmd->se_dev;
 	struct se_tmr_req *tmr = cmd->se_tmr_req;
+	unsigned long flags;
 	int ret;
 
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	if (cmd->transport_state & CMD_T_ABORTED) {
+		tmr->response = TMR_FUNCTION_REJECTED;
+		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+		goto check_stop;
+	}
+	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
 	switch (tmr->function) {
 	case TMR_ABORT_TASK:
 		core_tmr_abort_task(dev, tmr, cmd->se_sess);
@@ -2943,9 +3016,17 @@ static void target_tmr_work(struct work_struct *work)
 		break;
 	}
 
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	if (cmd->transport_state & CMD_T_ABORTED) {
+		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+		goto check_stop;
+	}
 	cmd->t_state = TRANSPORT_ISTATE_PROCESSING;
+	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
 	cmd->se_tfo->queue_tm_rsp(cmd);
 
+check_stop:
 	transport_cmd_check_stop_to_fabric(cmd);
 }
 
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index dd600e5..94f5154 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -903,7 +903,7 @@ static int tcmu_configure_device(struct se_device *dev)
 	info->version = __stringify(TCMU_MAILBOX_VERSION);
 
 	info->mem[0].name = "tcm-user command & data buffer";
-	info->mem[0].addr = (phys_addr_t) udev->mb_addr;
+	info->mem[0].addr = (phys_addr_t)(uintptr_t)udev->mb_addr;
 	info->mem[0].size = TCMU_RING_SIZE;
 	info->mem[0].memtype = UIO_MEM_VIRTUAL;
 
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index 8cc4ac6..7c92c09 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -195,7 +195,7 @@ config IMX_THERMAL
 	  passive trip is crossed.
 
 config SPEAR_THERMAL
-	bool "SPEAr thermal sensor driver"
+	tristate "SPEAr thermal sensor driver"
 	depends on PLAT_SPEAR || COMPILE_TEST
 	depends on OF
 	help
@@ -237,8 +237,8 @@ config DOVE_THERMAL
 	  framework.
 
 config DB8500_THERMAL
-	bool "DB8500 thermal management"
-	depends on ARCH_U8500
+	tristate "DB8500 thermal management"
+	depends on MFD_DB8500_PRCMU
 	default y
 	help
 	  Adds DB8500 thermal management implementation according to the thermal
diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index e3fbc5a..6ceac4f 100644
--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -377,26 +377,28 @@ static u32 cpu_power_to_freq(struct cpufreq_cooling_device *cpufreq_device,
  * get_load() - get load for a cpu since last updated
  * @cpufreq_device:	&struct cpufreq_cooling_device for this cpu
  * @cpu:	cpu number
+ * @cpu_idx:	index of the cpu in cpufreq_device->allowed_cpus
  *
  * Return: The average load of cpu @cpu in percentage since this
  * function was last called.
  */
-static u32 get_load(struct cpufreq_cooling_device *cpufreq_device, int cpu)
+static u32 get_load(struct cpufreq_cooling_device *cpufreq_device, int cpu,
+		    int cpu_idx)
 {
 	u32 load;
 	u64 now, now_idle, delta_time, delta_idle;
 
 	now_idle = get_cpu_idle_time(cpu, &now, 0);
-	delta_idle = now_idle - cpufreq_device->time_in_idle[cpu];
-	delta_time = now - cpufreq_device->time_in_idle_timestamp[cpu];
+	delta_idle = now_idle - cpufreq_device->time_in_idle[cpu_idx];
+	delta_time = now - cpufreq_device->time_in_idle_timestamp[cpu_idx];
 
 	if (delta_time <= delta_idle)
 		load = 0;
 	else
 		load = div64_u64(100 * (delta_time - delta_idle), delta_time);
 
-	cpufreq_device->time_in_idle[cpu] = now_idle;
-	cpufreq_device->time_in_idle_timestamp[cpu] = now;
+	cpufreq_device->time_in_idle[cpu_idx] = now_idle;
+	cpufreq_device->time_in_idle_timestamp[cpu_idx] = now;
 
 	return load;
 }
@@ -598,7 +600,7 @@ static int cpufreq_get_requested_power(struct thermal_cooling_device *cdev,
 		u32 load;
 
 		if (cpu_online(cpu))
-			load = get_load(cpufreq_device, cpu);
+			load = get_load(cpufreq_device, cpu, i);
 		else
 			load = 0;
 
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index be4eedc..9043f8f 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -475,14 +475,10 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data,
 
 	sensor_np = of_node_get(dev->of_node);
 
-	for_each_child_of_node(np, child) {
+	for_each_available_child_of_node(np, child) {
 		struct of_phandle_args sensor_specs;
 		int ret, id;
 
-		/* Check whether child is enabled or not */
-		if (!of_device_is_available(child))
-			continue;
-
 		/* For now, thermal framework supports only 1 sensor per zone */
 		ret = of_parse_phandle_with_args(child, "thermal-sensors",
 						 "#thermal-sensor-cells",
@@ -881,16 +877,12 @@ int __init of_parse_thermal_zones(void)
 		return 0; /* Run successfully on systems without thermal DT */
 	}
 
-	for_each_child_of_node(np, child) {
+	for_each_available_child_of_node(np, child) {
 		struct thermal_zone_device *zone;
 		struct thermal_zone_params *tzp;
 		int i, mask = 0;
 		u32 prop;
 
-		/* Check whether child is enabled or not */
-		if (!of_device_is_available(child))
-			continue;
-
 		tz = thermal_of_build_thermal_zone(child);
 		if (IS_ERR(tz)) {
 			pr_err("failed to build thermal zone %s: %ld\n",
@@ -968,13 +960,9 @@ void of_thermal_destroy_zones(void)
 		return;
 	}
 
-	for_each_child_of_node(np, child) {
+	for_each_available_child_of_node(np, child) {
 		struct thermal_zone_device *zone;
 
-		/* Check whether child is enabled or not */
-		if (!of_device_is_available(child))
-			continue;
-
 		zone = thermal_zone_get_zone_by_name(child->name);
 		if (IS_ERR(zone))
 			continue;
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 44b9c48..0e735ac 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -23,6 +23,7 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/reboot.h>
@@ -75,8 +76,10 @@ struct rcar_thermal_priv {
 #define rcar_has_irq_support(priv)	((priv)->common->base)
 #define rcar_id_to_shift(priv)		((priv)->id * 8)
 
+#define USE_OF_THERMAL	1
 static const struct of_device_id rcar_thermal_dt_ids[] = {
 	{ .compatible = "renesas,rcar-thermal", },
+	{ .compatible = "renesas,rcar-gen2-thermal", .data = (void *)USE_OF_THERMAL },
 	{},
 };
 MODULE_DEVICE_TABLE(of, rcar_thermal_dt_ids);
@@ -200,9 +203,9 @@ err_out_unlock:
 	return ret;
 }
 
-static int rcar_thermal_get_temp(struct thermal_zone_device *zone, int *temp)
+static int rcar_thermal_get_current_temp(struct rcar_thermal_priv *priv,
+					 int *temp)
 {
-	struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
 	int tmp;
 	int ret;
 
@@ -226,6 +229,20 @@ static int rcar_thermal_get_temp(struct thermal_zone_device *zone, int *temp)
 	return 0;
 }
 
+static int rcar_thermal_of_get_temp(void *data, int *temp)
+{
+	struct rcar_thermal_priv *priv = data;
+
+	return rcar_thermal_get_current_temp(priv, temp);
+}
+
+static int rcar_thermal_get_temp(struct thermal_zone_device *zone, int *temp)
+{
+	struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
+
+	return rcar_thermal_get_current_temp(priv, temp);
+}
+
 static int rcar_thermal_get_trip_type(struct thermal_zone_device *zone,
 				      int trip, enum thermal_trip_type *type)
 {
@@ -282,6 +299,10 @@ static int rcar_thermal_notify(struct thermal_zone_device *zone,
 	return 0;
 }
 
+static const struct thermal_zone_of_device_ops rcar_thermal_zone_of_ops = {
+	.get_temp	= rcar_thermal_of_get_temp,
+};
+
 static struct thermal_zone_device_ops rcar_thermal_zone_ops = {
 	.get_temp	= rcar_thermal_get_temp,
 	.get_trip_type	= rcar_thermal_get_trip_type,
@@ -318,14 +339,20 @@ static void rcar_thermal_work(struct work_struct *work)
 
 	priv = container_of(work, struct rcar_thermal_priv, work.work);
 
-	rcar_thermal_get_temp(priv->zone, &cctemp);
+	ret = rcar_thermal_get_current_temp(priv, &cctemp);
+	if (ret < 0)
+		return;
+
 	ret = rcar_thermal_update_temp(priv);
 	if (ret < 0)
 		return;
 
 	rcar_thermal_irq_enable(priv);
 
-	rcar_thermal_get_temp(priv->zone, &nctemp);
+	ret = rcar_thermal_get_current_temp(priv, &nctemp);
+	if (ret < 0)
+		return;
+
 	if (nctemp != cctemp)
 		thermal_zone_device_update(priv->zone);
 }
@@ -403,6 +430,8 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 	struct rcar_thermal_priv *priv;
 	struct device *dev = &pdev->dev;
 	struct resource *res, *irq;
+	const struct of_device_id *of_id = of_match_device(rcar_thermal_dt_ids, dev);
+	unsigned long of_data = (unsigned long)of_id->data;
 	int mres = 0;
 	int i;
 	int ret = -ENODEV;
@@ -463,7 +492,13 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 		if (ret < 0)
 			goto error_unregister;
 
-		priv->zone = thermal_zone_device_register("rcar_thermal",
+		if (of_data == USE_OF_THERMAL)
+			priv->zone = thermal_zone_of_sensor_register(
+						dev, i, priv,
+						&rcar_thermal_zone_of_ops);
+		else
+			priv->zone = thermal_zone_device_register(
+						"rcar_thermal",
 						1, 0, priv,
 						&rcar_thermal_zone_ops, NULL, 0,
 						idle);
diff --git a/drivers/thermal/spear_thermal.c b/drivers/thermal/spear_thermal.c
index 534dd91..81b35aa 100644
--- a/drivers/thermal/spear_thermal.c
+++ b/drivers/thermal/spear_thermal.c
@@ -54,8 +54,7 @@ static struct thermal_zone_device_ops ops = {
 	.get_temp = thermal_get_temp,
 };
 
-#ifdef CONFIG_PM
-static int spear_thermal_suspend(struct device *dev)
+static int __maybe_unused spear_thermal_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct thermal_zone_device *spear_thermal = platform_get_drvdata(pdev);
@@ -72,7 +71,7 @@ static int spear_thermal_suspend(struct device *dev)
 	return 0;
 }
 
-static int spear_thermal_resume(struct device *dev)
+static int __maybe_unused spear_thermal_resume(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct thermal_zone_device *spear_thermal = platform_get_drvdata(pdev);
@@ -94,7 +93,6 @@ static int spear_thermal_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
 static SIMPLE_DEV_PM_OPS(spear_thermal_pm_ops, spear_thermal_suspend,
 		spear_thermal_resume);
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index b311004..2348fa6 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -681,7 +681,14 @@ static void pty_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
 /* this is called once with whichever end is closed last */
 static void pty_unix98_shutdown(struct tty_struct *tty)
 {
-	devpts_kill_index(tty->driver_data, tty->index);
+	struct inode *ptmx_inode;
+
+	if (tty->driver->subtype == PTY_TYPE_MASTER)
+		ptmx_inode = tty->driver_data;
+	else
+		ptmx_inode = tty->link->driver_data;
+	devpts_kill_index(ptmx_inode, tty->index);
+	devpts_del_ref(ptmx_inode);
 }
 
 static const struct tty_operations ptm_unix98_ops = {
@@ -773,6 +780,18 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 	set_bit(TTY_PTY_LOCK, &tty->flags); /* LOCK THE SLAVE */
 	tty->driver_data = inode;
 
+	/*
+	 * In the case where all references to ptmx inode are dropped and we
+	 * still have /dev/tty opened pointing to the master/slave pair (ptmx
+	 * is closed/released before /dev/tty), we must make sure that the inode
+	 * is still valid when we call the final pty_unix98_shutdown, thus we
+	 * hold an additional reference to the ptmx inode. For the same /dev/tty
+	 * last close case, we also need to make sure the super_block isn't
+	 * destroyed (devpts instance unmounted), before /dev/tty is closed and
+	 * on its release devpts_kill_index is called.
+	 */
+	devpts_add_ref(inode);
+
 	tty_add_file(tty, filp);
 
 	slave_inode = devpts_pty_new(inode,
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index e71ec78..7cd6f9a 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1941,6 +1941,7 @@ pci_wch_ch38x_setup(struct serial_private *priv,
 #define PCIE_VENDOR_ID_WCH		0x1c00
 #define PCIE_DEVICE_ID_WCH_CH382_2S1P	0x3250
 #define PCIE_DEVICE_ID_WCH_CH384_4S	0x3470
+#define PCIE_DEVICE_ID_WCH_CH382_2S	0x3253
 
 #define PCI_VENDOR_ID_PERICOM			0x12D8
 #define PCI_DEVICE_ID_PERICOM_PI7C9X7951	0x7951
@@ -2637,6 +2638,14 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 		.subdevice	= PCI_ANY_ID,
 		.setup		= pci_wch_ch353_setup,
 	},
+	/* WCH CH382 2S card (16850 clone) */
+	{
+		.vendor         = PCIE_VENDOR_ID_WCH,
+		.device         = PCIE_DEVICE_ID_WCH_CH382_2S,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch38x_setup,
+	},
 	/* WCH CH382 2S1P card (16850 clone) */
 	{
 		.vendor         = PCIE_VENDOR_ID_WCH,
@@ -2955,6 +2964,7 @@ enum pci_board_num_t {
 	pbn_fintek_4,
 	pbn_fintek_8,
 	pbn_fintek_12,
+	pbn_wch382_2,
 	pbn_wch384_4,
 	pbn_pericom_PI7C9X7951,
 	pbn_pericom_PI7C9X7952,
@@ -3775,6 +3785,13 @@ static struct pciserial_board pci_boards[] = {
 		.base_baud	= 115200,
 		.first_offset	= 0x40,
 	},
+	[pbn_wch382_2] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+		.first_offset	= 0xC0,
+	},
 	[pbn_wch384_4] = {
 		.flags		= FL_BASE0,
 		.num_ports	= 4,
@@ -5574,6 +5591,10 @@ static struct pci_device_id serial_pci_tbl[] = {
 		PCI_ANY_ID, PCI_ANY_ID,
 		0, 0, pbn_b0_bt_2_115200 },
 
+	{	PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH382_2S,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_wch382_2 },
+
 	{	PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH384_4S,
 		PCI_ANY_ID, PCI_ANY_ID,
 		0, 0, pbn_wch384_4 },
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index b645f92..fa49eb1 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1165,7 +1165,7 @@ serial_omap_type(struct uart_port *port)
 
 #define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
 
-static void wait_for_xmitr(struct uart_omap_port *up)
+static void __maybe_unused wait_for_xmitr(struct uart_omap_port *up)
 {
 	unsigned int status, tmout = 10000;
 
@@ -1343,7 +1343,7 @@ static inline void serial_omap_add_console_port(struct uart_omap_port *up)
 
 /* Enable or disable the rs485 support */
 static int
-serial_omap_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf)
+serial_omap_config_rs485(struct uart_port *port, struct serial_rs485 *rs485)
 {
 	struct uart_omap_port *up = to_uart_omap_port(port);
 	unsigned int mode;
@@ -1356,8 +1356,12 @@ serial_omap_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf)
 	up->ier = 0;
 	serial_out(up, UART_IER, 0);
 
+	/* Clamp the delays to [0, 100ms] */
+	rs485->delay_rts_before_send = min(rs485->delay_rts_before_send, 100U);
+	rs485->delay_rts_after_send  = min(rs485->delay_rts_after_send, 100U);
+
 	/* store new config */
-	port->rs485 = *rs485conf;
+	port->rs485 = *rs485;
 
 	/*
 	 * Just as a precaution, only allow rs485
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 5cec01c..a7eacef 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2066,13 +2066,12 @@ retry_open:
 		if (tty) {
 			mutex_unlock(&tty_mutex);
 			retval = tty_lock_interruptible(tty);
+			tty_kref_put(tty);  /* drop kref from tty_driver_lookup_tty() */
 			if (retval) {
 				if (retval == -EINTR)
 					retval = -ERESTARTSYS;
 				goto err_unref;
 			}
-			/* safe to drop the kref from tty_driver_lookup_tty() */
-			tty_kref_put(tty);
 			retval = tty_reopen(tty);
 			if (retval < 0) {
 				tty_unlock(tty);
diff --git a/drivers/tty/tty_mutex.c b/drivers/tty/tty_mutex.c
index d2f3c4c..dfa9ec0 100644
--- a/drivers/tty/tty_mutex.c
+++ b/drivers/tty/tty_mutex.c
@@ -21,10 +21,15 @@ EXPORT_SYMBOL(tty_lock);
 
 int tty_lock_interruptible(struct tty_struct *tty)
 {
+	int ret;
+
 	if (WARN(tty->magic != TTY_MAGIC, "L Bad %p\n", tty))
 		return -EIO;
 	tty_kref_get(tty);
-	return mutex_lock_interruptible(&tty->legacy_mutex);
+	ret = mutex_lock_interruptible(&tty->legacy_mutex);
+	if (ret)
+		tty_kref_put(tty);
+	return ret;
 }
 
 void __lockfunc tty_unlock(struct tty_struct *tty)
diff --git a/drivers/usb/chipidea/ci_hdrc_pci.c b/drivers/usb/chipidea/ci_hdrc_pci.c
index b59195e..b635ab6 100644
--- a/drivers/usb/chipidea/ci_hdrc_pci.c
+++ b/drivers/usb/chipidea/ci_hdrc_pci.c
@@ -85,8 +85,8 @@ static int ci_hdrc_pci_probe(struct pci_dev *pdev,
 
 	/* register a nop PHY */
 	ci->phy = usb_phy_generic_register();
-	if (!ci->phy)
-		return -ENOMEM;
+	if (IS_ERR(ci->phy))
+		return PTR_ERR(ci->phy);
 
 	memset(res, 0, sizeof(res));
 	res[0].start	= pci_resource_start(pdev, 0);
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index a4f7db2..df47110 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -100,6 +100,9 @@ static ssize_t ci_port_test_write(struct file *file, const char __user *ubuf,
 	if (sscanf(buf, "%u", &mode) != 1)
 		return -EINVAL;
 
+	if (mode > 255)
+		return -EBADRQC;
+
 	pm_runtime_get_sync(ci->dev);
 	spin_lock_irqsave(&ci->lock, flags);
 	ret = hw_port_test_set(ci, mode);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 350dcd9..51b43691 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5401,6 +5401,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
 	}
 
 	bos = udev->bos;
+	udev->bos = NULL;
 
 	for (i = 0; i < SET_CONFIG_TRIES; ++i) {
 
@@ -5493,11 +5494,8 @@ done:
 	usb_set_usb2_hardware_lpm(udev, 1);
 	usb_unlocked_enable_lpm(udev);
 	usb_enable_ltm(udev);
-	/* release the new BOS descriptor allocated  by hub_port_init() */
-	if (udev->bos != bos) {
-		usb_release_bos_descriptor(udev);
-		udev->bos = bos;
-	}
+	usb_release_bos_descriptor(udev);
+	udev->bos = bos;
 	return 0;
 
 re_enumerate:
diff --git a/drivers/usb/dwc2/Kconfig b/drivers/usb/dwc2/Kconfig
index fd95ba6..f0decc0 100644
--- a/drivers/usb/dwc2/Kconfig
+++ b/drivers/usb/dwc2/Kconfig
@@ -1,5 +1,6 @@
 config USB_DWC2
 	tristate "DesignWare USB2 DRD Core Support"
+	depends on HAS_DMA
 	depends on USB || USB_GADGET
 	help
 	  Say Y here if your system has a Dual Role Hi-Speed USB
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index e991d55..46c4ba7 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -619,6 +619,12 @@ void dwc2_force_dr_mode(struct dwc2_hsotg *hsotg)
 			 __func__, hsotg->dr_mode);
 		break;
 	}
+
+	/*
+	 * NOTE: This is required for some rockchip soc based
+	 * platforms.
+	 */
+	msleep(50);
 }
 
 /*
diff --git a/drivers/usb/dwc2/hcd_ddma.c b/drivers/usb/dwc2/hcd_ddma.c
index 36606fc..a41274a 100644
--- a/drivers/usb/dwc2/hcd_ddma.c
+++ b/drivers/usb/dwc2/hcd_ddma.c
@@ -1174,14 +1174,11 @@ static int dwc2_process_non_isoc_desc(struct dwc2_hsotg *hsotg,
 	failed = dwc2_update_non_isoc_urb_state_ddma(hsotg, chan, qtd, dma_desc,
 						     halt_status, n_bytes,
 						     xfer_done);
-	if (*xfer_done && urb->status != -EINPROGRESS)
-		failed = 1;
-
-	if (failed) {
+	if (failed || (*xfer_done && urb->status != -EINPROGRESS)) {
 		dwc2_host_complete(hsotg, qtd, urb->status);
 		dwc2_hcd_qtd_unlink_and_free(hsotg, qtd, qh);
-		dev_vdbg(hsotg->dev, "failed=%1x xfer_done=%1x status=%08x\n",
-			 failed, *xfer_done, urb->status);
+		dev_vdbg(hsotg->dev, "failed=%1x xfer_done=%1x\n",
+			 failed, *xfer_done);
 		return failed;
 	}
 
@@ -1236,21 +1233,23 @@ static void dwc2_complete_non_isoc_xfer_ddma(struct dwc2_hsotg *hsotg,
 
 	list_for_each_safe(qtd_item, qtd_tmp, &qh->qtd_list) {
 		int i;
+		int qtd_desc_count;
 
 		qtd = list_entry(qtd_item, struct dwc2_qtd, qtd_list_entry);
 		xfer_done = 0;
+		qtd_desc_count = qtd->n_desc;
 
-		for (i = 0; i < qtd->n_desc; i++) {
+		for (i = 0; i < qtd_desc_count; i++) {
 			if (dwc2_process_non_isoc_desc(hsotg, chan, chnum, qtd,
 						       desc_num, halt_status,
-						       &xfer_done)) {
-				qtd = NULL;
-				break;
-			}
+						       &xfer_done))
+				goto stop_scan;
+
 			desc_num++;
 		}
 	}
 
+stop_scan:
 	if (qh->ep_type != USB_ENDPOINT_XFER_CONTROL) {
 		/*
 		 * Resetting the data toggle for bulk and interrupt endpoints
@@ -1258,7 +1257,7 @@ static void dwc2_complete_non_isoc_xfer_ddma(struct dwc2_hsotg *hsotg,
 		 */
 		if (halt_status == DWC2_HC_XFER_STALL)
 			qh->data_toggle = DWC2_HC_PID_DATA0;
-		else if (qtd)
+		else
 			dwc2_hcd_save_data_toggle(hsotg, chan, chnum, qtd);
 	}
 
diff --git a/drivers/usb/dwc2/hcd_intr.c b/drivers/usb/dwc2/hcd_intr.c
index f825380..cadba8b 100644
--- a/drivers/usb/dwc2/hcd_intr.c
+++ b/drivers/usb/dwc2/hcd_intr.c
@@ -525,11 +525,19 @@ void dwc2_hcd_save_data_toggle(struct dwc2_hsotg *hsotg,
 	u32 pid = (hctsiz & TSIZ_SC_MC_PID_MASK) >> TSIZ_SC_MC_PID_SHIFT;
 
 	if (chan->ep_type != USB_ENDPOINT_XFER_CONTROL) {
+		if (WARN(!chan || !chan->qh,
+			 "chan->qh must be specified for non-control eps\n"))
+			return;
+
 		if (pid == TSIZ_SC_MC_PID_DATA0)
 			chan->qh->data_toggle = DWC2_HC_PID_DATA0;
 		else
 			chan->qh->data_toggle = DWC2_HC_PID_DATA1;
 	} else {
+		if (WARN(!qtd,
+			 "qtd must be specified for control eps\n"))
+			return;
+
 		if (pid == TSIZ_SC_MC_PID_DATA0)
 			qtd->data_toggle = DWC2_HC_PID_DATA0;
 		else
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 2913068..e4f8b90 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -856,7 +856,6 @@ struct dwc3 {
 	unsigned		pullups_connected:1;
 	unsigned		resize_fifos:1;
 	unsigned		setup_packet_pending:1;
-	unsigned		start_config_issued:1;
 	unsigned		three_stage_setup:1;
 	unsigned		usb3_lpm_capable:1;
 
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 3a9354a..8d6b75c 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -555,7 +555,6 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
 	int ret;
 	u32 reg;
 
-	dwc->start_config_issued = false;
 	cfg = le16_to_cpu(ctrl->wValue);
 
 	switch (state) {
@@ -737,10 +736,6 @@ static int dwc3_ep0_std_request(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
 		dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_ISOCH_DELAY");
 		ret = dwc3_ep0_set_isoch_delay(dwc, ctrl);
 		break;
-	case USB_REQ_SET_INTERFACE:
-		dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_INTERFACE");
-		dwc->start_config_issued = false;
-		/* Fall through */
 	default:
 		dwc3_trace(trace_dwc3_ep0, "Forwarding to gadget driver");
 		ret = dwc3_ep0_delegate_req(dwc, ctrl);
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 7d1dd82..2363bad 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -385,24 +385,66 @@ static void dwc3_free_trb_pool(struct dwc3_ep *dep)
 	dep->trb_pool_dma = 0;
 }
 
+static int dwc3_gadget_set_xfer_resource(struct dwc3 *dwc, struct dwc3_ep *dep);
+
+/**
+ * dwc3_gadget_start_config - Configure EP resources
+ * @dwc: pointer to our controller context structure
+ * @dep: endpoint that is being enabled
+ *
+ * The assignment of transfer resources cannot perfectly follow the
+ * data book due to the fact that the controller driver does not have
+ * all knowledge of the configuration in advance. It is given this
+ * information piecemeal by the composite gadget framework after every
+ * SET_CONFIGURATION and SET_INTERFACE. Trying to follow the databook
+ * programming model in this scenario can cause errors. For two
+ * reasons:
+ *
+ * 1) The databook says to do DEPSTARTCFG for every SET_CONFIGURATION
+ * and SET_INTERFACE (8.1.5). This is incorrect in the scenario of
+ * multiple interfaces.
+ *
+ * 2) The databook does not mention doing more DEPXFERCFG for new
+ * endpoint on alt setting (8.1.6).
+ *
+ * The following simplified method is used instead:
+ *
+ * All hardware endpoints can be assigned a transfer resource and this
+ * setting will stay persistent until either a core reset or
+ * hibernation. So whenever we do a DEPSTARTCFG(0) we can go ahead and
+ * do DEPXFERCFG for every hardware endpoint as well. We are
+ * guaranteed that there are as many transfer resources as endpoints.
+ *
+ * This function is called for each endpoint when it is being enabled
+ * but is triggered only when called for EP0-out, which always happens
+ * first, and which should only happen in one of the above conditions.
+ */
 static int dwc3_gadget_start_config(struct dwc3 *dwc, struct dwc3_ep *dep)
 {
 	struct dwc3_gadget_ep_cmd_params params;
 	u32			cmd;
+	int			i;
+	int			ret;
+
+	if (dep->number)
+		return 0;
 
 	memset(&params, 0x00, sizeof(params));
+	cmd = DWC3_DEPCMD_DEPSTARTCFG;
 
-	if (dep->number != 1) {
-		cmd = DWC3_DEPCMD_DEPSTARTCFG;
-		/* XferRscIdx == 0 for ep0 and 2 for the remaining */
-		if (dep->number > 1) {
-			if (dwc->start_config_issued)
-				return 0;
-			dwc->start_config_issued = true;
-			cmd |= DWC3_DEPCMD_PARAM(2);
-		}
+	ret = dwc3_send_gadget_ep_cmd(dwc, 0, cmd, &params);
+	if (ret)
+		return ret;
 
-		return dwc3_send_gadget_ep_cmd(dwc, 0, cmd, &params);
+	for (i = 0; i < DWC3_ENDPOINTS_NUM; i++) {
+		struct dwc3_ep *dep = dwc->eps[i];
+
+		if (!dep)
+			continue;
+
+		ret = dwc3_gadget_set_xfer_resource(dwc, dep);
+		if (ret)
+			return ret;
 	}
 
 	return 0;
@@ -516,10 +558,6 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
 		struct dwc3_trb	*trb_st_hw;
 		struct dwc3_trb	*trb_link;
 
-		ret = dwc3_gadget_set_xfer_resource(dwc, dep);
-		if (ret)
-			return ret;
-
 		dep->endpoint.desc = desc;
 		dep->comp_desc = comp_desc;
 		dep->type = usb_endpoint_type(desc);
@@ -1636,8 +1674,6 @@ static int dwc3_gadget_start(struct usb_gadget *g,
 	}
 	dwc3_writel(dwc->regs, DWC3_DCFG, reg);
 
-	dwc->start_config_issued = false;
-
 	/* Start with SuperSpeed Default */
 	dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);
 
@@ -2237,7 +2273,6 @@ static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc)
 	dwc3_writel(dwc->regs, DWC3_DCTL, reg);
 
 	dwc3_disconnect_gadget(dwc);
-	dwc->start_config_issued = false;
 
 	dwc->gadget.speed = USB_SPEED_UNKNOWN;
 	dwc->setup_packet_pending = false;
@@ -2288,7 +2323,6 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
 
 	dwc3_stop_active_transfers(dwc);
 	dwc3_clear_stall_all_ep(dwc);
-	dwc->start_config_issued = false;
 
 	/* Reset device address to zero */
 	reg = dwc3_readl(dwc->regs, DWC3_DCFG);
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 7e179f8..87fb0fd 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -130,7 +130,8 @@ struct dev_data {
 					setup_can_stall : 1,
 					setup_out_ready : 1,
 					setup_out_error : 1,
-					setup_abort : 1;
+					setup_abort : 1,
+					gadget_registered : 1;
 	unsigned			setup_wLength;
 
 	/* the rest is basically write-once */
@@ -1179,7 +1180,8 @@ dev_release (struct inode *inode, struct file *fd)
 
 	/* closing ep0 === shutdown all */
 
-	usb_gadget_unregister_driver (&gadgetfs_driver);
+	if (dev->gadget_registered)
+		usb_gadget_unregister_driver (&gadgetfs_driver);
 
 	/* at this point "good" hardware has disconnected the
 	 * device from USB; the host won't see it any more.
@@ -1847,6 +1849,7 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 		 * kick in after the ep0 descriptor is closed.
 		 */
 		value = len;
+		dev->gadget_registered = true;
 	}
 	return value;
 
diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
index 53c0692..93d28cb 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -2340,7 +2340,7 @@ static struct qe_udc *qe_udc_config(struct platform_device *ofdev)
 {
 	struct qe_udc *udc;
 	struct device_node *np = ofdev->dev.of_node;
-	unsigned int tmp_addr = 0;
+	unsigned long tmp_addr = 0;
 	struct usb_device_para __iomem *usbpram;
 	unsigned int i;
 	u64 size;
diff --git a/drivers/usb/gadget/udc/net2280.h b/drivers/usb/gadget/udc/net2280.h
index 4dff60d..0d32052 100644
--- a/drivers/usb/gadget/udc/net2280.h
+++ b/drivers/usb/gadget/udc/net2280.h
@@ -369,9 +369,20 @@ static inline void set_max_speed(struct net2280_ep *ep, u32 max)
 	static const u32 ep_enhanced[9] = { 0x10, 0x60, 0x30, 0x80,
 					  0x50, 0x20, 0x70, 0x40, 0x90 };
 
-	if (ep->dev->enhanced_mode)
+	if (ep->dev->enhanced_mode) {
 		reg = ep_enhanced[ep->num];
-	else{
+		switch (ep->dev->gadget.speed) {
+		case USB_SPEED_SUPER:
+			reg += 2;
+			break;
+		case USB_SPEED_FULL:
+			reg += 1;
+			break;
+		case USB_SPEED_HIGH:
+		default:
+			break;
+		}
+	} else {
 		reg = (ep->num + 1) * 0x10;
 		if (ep->dev->gadget.speed != USB_SPEED_HIGH)
 			reg += 1;
diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c
index fd73a3e..b86a6f0 100644
--- a/drivers/usb/gadget/udc/udc-core.c
+++ b/drivers/usb/gadget/udc/udc-core.c
@@ -413,9 +413,10 @@ int usb_add_gadget_udc_release(struct device *parent, struct usb_gadget *gadget,
 		if (!driver->udc_name || strcmp(driver->udc_name,
 						dev_name(&udc->dev)) == 0) {
 			ret = udc_bind_to_driver(udc, driver);
+			if (ret != -EPROBE_DEFER)
+				list_del(&driver->pending);
 			if (ret)
 				goto err4;
-			list_del(&driver->pending);
 			break;
 		}
 	}
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 795a45b..58487a4 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -662,7 +662,7 @@ static int musb_tx_dma_set_mode_mentor(struct dma_controller *dma,
 		csr &= ~(MUSB_TXCSR_AUTOSET | MUSB_TXCSR_DMAMODE);
 		csr |= MUSB_TXCSR_DMAENAB; /* against programmer's guide */
 	}
-	channel->desired_mode = mode;
+	channel->desired_mode = *mode;
 	musb_writew(epio, MUSB_TXCSR, csr);
 
 	return 0;
@@ -2003,10 +2003,8 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 				qh->offset,
 				urb->transfer_buffer_length);
 
-			done = musb_rx_dma_in_inventra_cppi41(c, hw_ep, qh,
-							      urb, xfer_len,
-							      iso_err);
-			if (done)
+			if (musb_rx_dma_in_inventra_cppi41(c, hw_ep, qh, urb,
+							   xfer_len, iso_err))
 				goto finish;
 			else
 				dev_err(musb->controller, "error: rx_dma failed\n");
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 970a30e..72b387d 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -757,14 +757,8 @@ static int msm_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
 	otg->host = host;
 	dev_dbg(otg->usb_phy->dev, "host driver registered w/ tranceiver\n");
 
-	/*
-	 * Kick the state machine work, if peripheral is not supported
-	 * or peripheral is already registered with us.
-	 */
-	if (motg->pdata->mode == USB_DR_MODE_HOST || otg->gadget) {
-		pm_runtime_get_sync(otg->usb_phy->dev);
-		schedule_work(&motg->sm_work);
-	}
+	pm_runtime_get_sync(otg->usb_phy->dev);
+	schedule_work(&motg->sm_work);
 
 	return 0;
 }
@@ -827,14 +821,8 @@ static int msm_otg_set_peripheral(struct usb_otg *otg,
 	dev_dbg(otg->usb_phy->dev,
 		"peripheral driver registered w/ tranceiver\n");
 
-	/*
-	 * Kick the state machine work, if host is not supported
-	 * or host is already registered with us.
-	 */
-	if (motg->pdata->mode == USB_DR_MODE_PERIPHERAL || otg->host) {
-		pm_runtime_get_sync(otg->usb_phy->dev);
-		schedule_work(&motg->sm_work);
-	}
+	pm_runtime_get_sync(otg->usb_phy->dev);
+	schedule_work(&motg->sm_work);
 
 	return 0;
 }
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 987813b..7c319e7 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -163,6 +163,8 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
 	{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
 	{ USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
+	{ USB_DEVICE(0x1901, 0x0190) }, /* GE B850 CP2105 Recorder interface */
+	{ USB_DEVICE(0x1901, 0x0193) }, /* GE B650 CP2104 PMC interface */
 	{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
 	{ USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
 	{ USB_DEVICE(0x1BA4, 0x0002) },	/* Silicon Labs 358x factory default */
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index db86e51..8849439a 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -315,6 +315,7 @@ static void option_instat_callback(struct urb *urb);
 #define TOSHIBA_PRODUCT_G450			0x0d45
 
 #define ALINK_VENDOR_ID				0x1e0e
+#define SIMCOM_PRODUCT_SIM7100E			0x9001 /* Yes, ALINK_VENDOR_ID */
 #define ALINK_PRODUCT_PH300			0x9100
 #define ALINK_PRODUCT_3GU			0x9200
 
@@ -607,6 +608,10 @@ static const struct option_blacklist_info zte_1255_blacklist = {
 	.reserved = BIT(3) | BIT(4),
 };
 
+static const struct option_blacklist_info simcom_sim7100e_blacklist = {
+	.reserved = BIT(5) | BIT(6),
+};
+
 static const struct option_blacklist_info telit_le910_blacklist = {
 	.sendsetup = BIT(0),
 	.reserved = BIT(1) | BIT(2),
@@ -1122,6 +1127,8 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 	{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUALCOMM_VENDOR_ID, 0x6001, 0xff, 0xff, 0xff), /* 4G LTE usb-modem U901 */
+	  .driver_info = (kernel_ulong_t)&net_intf3_blacklist },
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */
@@ -1645,6 +1652,8 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(ALINK_VENDOR_ID, 0x9000) },
 	{ USB_DEVICE(ALINK_VENDOR_ID, ALINK_PRODUCT_PH300) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE(ALINK_VENDOR_ID, SIMCOM_PRODUCT_SIM7100E),
+	  .driver_info = (kernel_ulong_t)&simcom_sim7100e_blacklist },
 	{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200),
 	  .driver_info = (kernel_ulong_t)&alcatel_x200_blacklist
 	},
diff --git a/drivers/video/fbdev/da8xx-fb.c b/drivers/video/fbdev/da8xx-fb.c
index 0081725..6b2a06d 100644
--- a/drivers/video/fbdev/da8xx-fb.c
+++ b/drivers/video/fbdev/da8xx-fb.c
@@ -152,7 +152,7 @@ static void lcdc_write(unsigned int val, unsigned int addr)
 
 struct da8xx_fb_par {
 	struct device		*dev;
-	resource_size_t p_palette_base;
+	dma_addr_t		p_palette_base;
 	unsigned char *v_palette_base;
 	dma_addr_t		vram_phys;
 	unsigned long		vram_size;
@@ -1428,7 +1428,7 @@ static int fb_probe(struct platform_device *device)
 
 	par->vram_virt = dma_alloc_coherent(NULL,
 					    par->vram_size,
-					    (resource_size_t *) &par->vram_phys,
+					    &par->vram_phys,
 					    GFP_KERNEL | GFP_DMA);
 	if (!par->vram_virt) {
 		dev_err(&device->dev,
@@ -1448,7 +1448,7 @@ static int fb_probe(struct platform_device *device)
 
 	/* allocate palette buffer */
 	par->v_palette_base = dma_zalloc_coherent(NULL, PALETTE_SIZE,
-						  (resource_size_t *)&par->p_palette_base,
+						  &par->p_palette_base,
 						  GFP_KERNEL | GFP_DMA);
 	if (!par->v_palette_base) {
 		dev_err(&device->dev,
diff --git a/drivers/video/fbdev/exynos/s6e8ax0.c b/drivers/video/fbdev/exynos/s6e8ax0.c
index 95873f2..de2f3e7 100644
--- a/drivers/video/fbdev/exynos/s6e8ax0.c
+++ b/drivers/video/fbdev/exynos/s6e8ax0.c
@@ -829,8 +829,7 @@ static int s6e8ax0_probe(struct mipi_dsim_lcd_device *dsim_dev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int s6e8ax0_suspend(struct mipi_dsim_lcd_device *dsim_dev)
+static int __maybe_unused s6e8ax0_suspend(struct mipi_dsim_lcd_device *dsim_dev)
 {
 	struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev);
 
@@ -843,7 +842,7 @@ static int s6e8ax0_suspend(struct mipi_dsim_lcd_device *dsim_dev)
 	return 0;
 }
 
-static int s6e8ax0_resume(struct mipi_dsim_lcd_device *dsim_dev)
+static int __maybe_unused s6e8ax0_resume(struct mipi_dsim_lcd_device *dsim_dev)
 {
 	struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev);
 
@@ -855,10 +854,6 @@ static int s6e8ax0_resume(struct mipi_dsim_lcd_device *dsim_dev)
 
 	return 0;
 }
-#else
-#define s6e8ax0_suspend		NULL
-#define s6e8ax0_resume		NULL
-#endif
 
 static struct mipi_dsim_lcd_driver s6e8ax0_dsim_ddi_driver = {
 	.name = "s6e8ax0",
@@ -867,8 +862,8 @@ static struct mipi_dsim_lcd_driver s6e8ax0_dsim_ddi_driver = {
 	.power_on = s6e8ax0_power_on,
 	.set_sequence = s6e8ax0_set_sequence,
 	.probe = s6e8ax0_probe,
-	.suspend = s6e8ax0_suspend,
-	.resume = s6e8ax0_resume,
+	.suspend = IS_ENABLED(CONFIG_PM) ? s6e8ax0_suspend : NULL,
+	.resume = IS_ENABLED(CONFIG_PM) ? s6e8ax0_resume : NULL,
 };
 
 static int s6e8ax0_init(void)
diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c
index cee8860..bb2f1e8 100644
--- a/drivers/video/fbdev/imxfb.c
+++ b/drivers/video/fbdev/imxfb.c
@@ -902,6 +902,21 @@ static int imxfb_probe(struct platform_device *pdev)
 		goto failed_getclock;
 	}
 
+	/*
+	 * The LCDC controller does not have an enable bit. The
+	 * controller starts directly when the clocks are enabled.
+	 * If the clocks are enabled when the controller is not yet
+	 * programmed with proper register values (enabled at the
+	 * bootloader, for example) then it just goes into some undefined
+	 * state.
+	 * To avoid this issue, let's enable and disable LCDC IPG clock
+	 * so that we force some kind of 'reset' to the LCDC block.
+	 */
+	ret = clk_prepare_enable(fbi->clk_ipg);
+	if (ret)
+		goto failed_getclock;
+	clk_disable_unprepare(fbi->clk_ipg);
+
 	fbi->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
 	if (IS_ERR(fbi->clk_ahb)) {
 		ret = PTR_ERR(fbi->clk_ahb);
diff --git a/drivers/video/fbdev/mmp/hw/mmp_ctrl.c b/drivers/video/fbdev/mmp/hw/mmp_ctrl.c
index de54a47..b6f83d5 100644
--- a/drivers/video/fbdev/mmp/hw/mmp_ctrl.c
+++ b/drivers/video/fbdev/mmp/hw/mmp_ctrl.c
@@ -503,8 +503,7 @@ static int mmphw_probe(struct platform_device *pdev)
 	ctrl->reg_base = devm_ioremap_nocache(ctrl->dev,
 			res->start, resource_size(res));
 	if (ctrl->reg_base == NULL) {
-		dev_err(ctrl->dev, "%s: res %x - %x map failed\n", __func__,
-			res->start, res->end);
+		dev_err(ctrl->dev, "%s: res %pR map failed\n", __func__, res);
 		ret = -ENOMEM;
 		goto failed;
 	}
diff --git a/drivers/video/fbdev/ocfb.c b/drivers/video/fbdev/ocfb.c
index c9293ae..a970edc2 100644
--- a/drivers/video/fbdev/ocfb.c
+++ b/drivers/video/fbdev/ocfb.c
@@ -123,11 +123,11 @@ static int ocfb_setupfb(struct ocfb_dev *fbdev)
 
 	/* Horizontal timings */
 	ocfb_writereg(fbdev, OCFB_HTIM, (var->hsync_len - 1) << 24 |
-		      (var->right_margin - 1) << 16 | (var->xres - 1));
+		      (var->left_margin - 1) << 16 | (var->xres - 1));
 
 	/* Vertical timings */
 	ocfb_writereg(fbdev, OCFB_VTIM, (var->vsync_len - 1) << 24 |
-		      (var->lower_margin - 1) << 16 | (var->yres - 1));
+		      (var->upper_margin - 1) << 16 | (var->yres - 1));
 
 	/* Total length of frame */
 	hlen = var->left_margin + var->right_margin + var->hsync_len +
diff --git a/drivers/vme/bridges/vme_ca91cx42.c b/drivers/vme/bridges/vme_ca91cx42.c
index b79a74a..5fbeab3 100644
--- a/drivers/vme/bridges/vme_ca91cx42.c
+++ b/drivers/vme/bridges/vme_ca91cx42.c
@@ -202,7 +202,7 @@ static int ca91cx42_irq_init(struct vme_bridge *ca91cx42_bridge)
 	bridge = ca91cx42_bridge->driver_priv;
 
 	/* Need pdev */
-	pdev = container_of(ca91cx42_bridge->parent, struct pci_dev, dev);
+	pdev = to_pci_dev(ca91cx42_bridge->parent);
 
 	INIT_LIST_HEAD(&ca91cx42_bridge->vme_error_handlers);
 
@@ -293,8 +293,7 @@ static void ca91cx42_irq_set(struct vme_bridge *ca91cx42_bridge, int level,
 	iowrite32(tmp, bridge->base + LINT_EN);
 
 	if ((state == 0) && (sync != 0)) {
-		pdev = container_of(ca91cx42_bridge->parent, struct pci_dev,
-			dev);
+		pdev = to_pci_dev(ca91cx42_bridge->parent);
 
 		synchronize_irq(pdev->irq);
 	}
@@ -518,7 +517,7 @@ static int ca91cx42_alloc_resource(struct vme_master_resource *image,
 		dev_err(ca91cx42_bridge->parent, "Dev entry NULL\n");
 		return -EINVAL;
 	}
-	pdev = container_of(ca91cx42_bridge->parent, struct pci_dev, dev);
+	pdev = to_pci_dev(ca91cx42_bridge->parent);
 
 	existing_size = (unsigned long long)(image->bus_resource.end -
 		image->bus_resource.start);
@@ -1519,7 +1518,7 @@ static void *ca91cx42_alloc_consistent(struct device *parent, size_t size,
 	struct pci_dev *pdev;
 
 	/* Find pci_dev container of dev */
-	pdev = container_of(parent, struct pci_dev, dev);
+	pdev = to_pci_dev(parent);
 
 	return pci_alloc_consistent(pdev, size, dma);
 }
@@ -1530,7 +1529,7 @@ static void ca91cx42_free_consistent(struct device *parent, size_t size,
 	struct pci_dev *pdev;
 
 	/* Find pci_dev container of dev */
-	pdev = container_of(parent, struct pci_dev, dev);
+	pdev = to_pci_dev(parent);
 
 	pci_free_consistent(pdev, size, vaddr, dma);
 }
diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index 0e2f43b..a2eec97 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -618,7 +618,6 @@ static u8 omap_w1_read_byte(void *_hdq)
 
 	hdq_disable_interrupt(hdq_data, OMAP_HDQ_CTRL_STATUS,
 			      ~OMAP_HDQ_CTRL_STATUS_INTERRUPTMASK);
-	hdq_data->hdq_usecount = 0;
 
 	/* Write followed by a read, release the module */
 	if (hdq_data->init_trans) {
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index c9a7ff6..89a7847 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -1147,7 +1147,6 @@ int w1_process(void *data)
 			jremain = 1;
 		}
 
-		try_to_freeze();
 		__set_current_state(TASK_INTERRUPTIBLE);
 
 		/* hold list_mutex until after interruptible to prevent loosing
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 0f6d851..86c2392 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1214,6 +1214,21 @@ config SBC_EPX_C3_WATCHDOG
 	  To compile this driver as a module, choose M here: the
 	  module will be called sbc_epx_c3.
 
+config INTEL_MEI_WDT
+	tristate "Intel MEI iAMT Watchdog"
+	depends on INTEL_MEI && X86
+	select WATCHDOG_CORE
+	---help---
+	  A device driver for the Intel MEI iAMT watchdog.
+
+	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
+	  Whenever the OS hangs or crashes, iAMT will send an event
+	  to any subscriber to this event. The watchdog doesn't reset the
+	  the platform.
+
+	  To compile this driver as a module, choose M here:
+	  the module will be called mei_wdt.
+
 # M32R Architecture
 
 # M68K Architecture
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index f566753..efc4f78 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -126,6 +126,7 @@ obj-$(CONFIG_MACHZ_WDT) += machzwd.o
 obj-$(CONFIG_SBC_EPX_C3_WATCHDOG) += sbc_epx_c3.o
 obj-$(CONFIG_INTEL_SCU_WATCHDOG) += intel_scu_watchdog.o
 obj-$(CONFIG_INTEL_MID_WATCHDOG) += intel-mid_wdt.o
+obj-$(CONFIG_INTEL_MEI_WDT) += mei_wdt.o
 
 # M32R Architecture
 
diff --git a/drivers/watchdog/mei_wdt.c b/drivers/watchdog/mei_wdt.c
new file mode 100644
index 0000000..630bd18
--- /dev/null
+++ b/drivers/watchdog/mei_wdt.c
@@ -0,0 +1,724 @@
+/*
+ * Intel Management Engine Interface (Intel MEI) Linux driver
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/debugfs.h>
+#include <linux/completion.h>
+#include <linux/watchdog.h>
+
+#include <linux/uuid.h>
+#include <linux/mei_cl_bus.h>
+
+/*
+ * iAMT Watchdog Device
+ */
+#define INTEL_AMT_WATCHDOG_ID "iamt_wdt"
+
+#define MEI_WDT_DEFAULT_TIMEOUT   120  /* seconds */
+#define MEI_WDT_MIN_TIMEOUT       120  /* seconds */
+#define MEI_WDT_MAX_TIMEOUT     65535  /* seconds */
+
+/* Commands */
+#define MEI_MANAGEMENT_CONTROL 0x02
+
+/* MEI Management Control version number */
+#define MEI_MC_VERSION_NUMBER  0x10
+
+/* Sub Commands */
+#define MEI_MC_START_WD_TIMER_REQ  0x13
+#define MEI_MC_START_WD_TIMER_RES  0x83
+#define   MEI_WDT_STATUS_SUCCESS 0
+#define   MEI_WDT_WDSTATE_NOT_REQUIRED 0x1
+#define MEI_MC_STOP_WD_TIMER_REQ   0x14
+
+/**
+ * enum mei_wdt_state - internal watchdog state
+ *
+ * @MEI_WDT_PROBE: wd in probing stage
+ * @MEI_WDT_IDLE: wd is idle and not opened
+ * @MEI_WDT_START: wd was opened, start was called
+ * @MEI_WDT_RUNNING: wd is expecting keep alive pings
+ * @MEI_WDT_STOPPING: wd is stopping and will move to IDLE
+ * @MEI_WDT_NOT_REQUIRED: wd device is not required
+ */
+enum mei_wdt_state {
+	MEI_WDT_PROBE,
+	MEI_WDT_IDLE,
+	MEI_WDT_START,
+	MEI_WDT_RUNNING,
+	MEI_WDT_STOPPING,
+	MEI_WDT_NOT_REQUIRED,
+};
+
+static const char *mei_wdt_state_str(enum mei_wdt_state state)
+{
+	switch (state) {
+	case MEI_WDT_PROBE:
+		return "PROBE";
+	case MEI_WDT_IDLE:
+		return "IDLE";
+	case MEI_WDT_START:
+		return "START";
+	case MEI_WDT_RUNNING:
+		return "RUNNING";
+	case MEI_WDT_STOPPING:
+		return "STOPPING";
+	case MEI_WDT_NOT_REQUIRED:
+		return "NOT_REQUIRED";
+	default:
+		return "unknown";
+	}
+}
+
+/**
+ * struct mei_wdt - mei watchdog driver
+ * @wdd: watchdog device
+ *
+ * @cldev: mei watchdog client device
+ * @state: watchdog internal state
+ * @resp_required: ping required response
+ * @response: ping response completion
+ * @unregister: unregister worker
+ * @reg_lock: watchdog device registration lock
+ * @timeout: watchdog current timeout
+ *
+ * @dbgfs_dir: debugfs dir entry
+ */
+struct mei_wdt {
+	struct watchdog_device wdd;
+
+	struct mei_cl_device *cldev;
+	enum mei_wdt_state state;
+	bool resp_required;
+	struct completion response;
+	struct work_struct unregister;
+	struct mutex reg_lock;
+	u16 timeout;
+
+#if IS_ENABLED(CONFIG_DEBUG_FS)
+	struct dentry *dbgfs_dir;
+#endif /* CONFIG_DEBUG_FS */
+};
+
+/*
+ * struct mei_mc_hdr - Management Control Command Header
+ *
+ * @command: Management Control (0x2)
+ * @bytecount: Number of bytes in the message beyond this byte
+ * @subcommand: Management Control Subcommand
+ * @versionnumber: Management Control Version (0x10)
+ */
+struct mei_mc_hdr {
+	u8 command;
+	u8 bytecount;
+	u8 subcommand;
+	u8 versionnumber;
+};
+
+/**
+ * struct mei_wdt_start_request watchdog start/ping
+ *
+ * @hdr: Management Control Command Header
+ * @timeout: timeout value
+ * @reserved: reserved (legacy)
+ */
+struct mei_wdt_start_request {
+	struct mei_mc_hdr hdr;
+	u16 timeout;
+	u8 reserved[17];
+} __packed;
+
+/**
+ * struct mei_wdt_start_response watchdog start/ping response
+ *
+ * @hdr: Management Control Command Header
+ * @status: operation status
+ * @wdstate: watchdog status bit mask
+ */
+struct mei_wdt_start_response {
+	struct mei_mc_hdr hdr;
+	u8 status;
+	u8 wdstate;
+} __packed;
+
+/**
+ * struct mei_wdt_stop_request - watchdog stop
+ *
+ * @hdr: Management Control Command Header
+ */
+struct mei_wdt_stop_request {
+	struct mei_mc_hdr hdr;
+} __packed;
+
+/**
+ * mei_wdt_ping - send wd start/ping command
+ *
+ * @wdt: mei watchdog device
+ *
+ * Return: 0 on success,
+ *         negative errno code on failure
+ */
+static int mei_wdt_ping(struct mei_wdt *wdt)
+{
+	struct mei_wdt_start_request req;
+	const size_t req_len = sizeof(req);
+	int ret;
+
+	memset(&req, 0, req_len);
+	req.hdr.command = MEI_MANAGEMENT_CONTROL;
+	req.hdr.bytecount = req_len - offsetof(struct mei_mc_hdr, subcommand);
+	req.hdr.subcommand = MEI_MC_START_WD_TIMER_REQ;
+	req.hdr.versionnumber = MEI_MC_VERSION_NUMBER;
+	req.timeout = wdt->timeout;
+
+	ret = mei_cldev_send(wdt->cldev, (u8 *)&req, req_len);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+/**
+ * mei_wdt_stop - send wd stop command
+ *
+ * @wdt: mei watchdog device
+ *
+ * Return: 0 on success,
+ *         negative errno code on failure
+ */
+static int mei_wdt_stop(struct mei_wdt *wdt)
+{
+	struct mei_wdt_stop_request req;
+	const size_t req_len = sizeof(req);
+	int ret;
+
+	memset(&req, 0, req_len);
+	req.hdr.command = MEI_MANAGEMENT_CONTROL;
+	req.hdr.bytecount = req_len - offsetof(struct mei_mc_hdr, subcommand);
+	req.hdr.subcommand = MEI_MC_STOP_WD_TIMER_REQ;
+	req.hdr.versionnumber = MEI_MC_VERSION_NUMBER;
+
+	ret = mei_cldev_send(wdt->cldev, (u8 *)&req, req_len);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+/**
+ * mei_wdt_ops_start - wd start command from the watchdog core.
+ *
+ * @wdd: watchdog device
+ *
+ * Return: 0 on success or -ENODEV;
+ */
+static int mei_wdt_ops_start(struct watchdog_device *wdd)
+{
+	struct mei_wdt *wdt = watchdog_get_drvdata(wdd);
+
+	wdt->state = MEI_WDT_START;
+	wdd->timeout = wdt->timeout;
+	return 0;
+}
+
+/**
+ * mei_wdt_ops_stop - wd stop command from the watchdog core.
+ *
+ * @wdd: watchdog device
+ *
+ * Return: 0 if success, negative errno code for failure
+ */
+static int mei_wdt_ops_stop(struct watchdog_device *wdd)
+{
+	struct mei_wdt *wdt = watchdog_get_drvdata(wdd);
+	int ret;
+
+	if (wdt->state != MEI_WDT_RUNNING)
+		return 0;
+
+	wdt->state = MEI_WDT_STOPPING;
+
+	ret = mei_wdt_stop(wdt);
+	if (ret)
+		return ret;
+
+	wdt->state = MEI_WDT_IDLE;
+
+	return 0;
+}
+
+/**
+ * mei_wdt_ops_ping - wd ping command from the watchdog core.
+ *
+ * @wdd: watchdog device
+ *
+ * Return: 0 if success, negative errno code on failure
+ */
+static int mei_wdt_ops_ping(struct watchdog_device *wdd)
+{
+	struct mei_wdt *wdt = watchdog_get_drvdata(wdd);
+	int ret;
+
+	if (wdt->state != MEI_WDT_START && wdt->state != MEI_WDT_RUNNING)
+		return 0;
+
+	if (wdt->resp_required)
+		init_completion(&wdt->response);
+
+	wdt->state = MEI_WDT_RUNNING;
+	ret = mei_wdt_ping(wdt);
+	if (ret)
+		return ret;
+
+	if (wdt->resp_required)
+		ret = wait_for_completion_killable(&wdt->response);
+
+	return ret;
+}
+
+/**
+ * mei_wdt_ops_set_timeout - wd set timeout command from the watchdog core.
+ *
+ * @wdd: watchdog device
+ * @timeout: timeout value to set
+ *
+ * Return: 0 if success, negative errno code for failure
+ */
+static int mei_wdt_ops_set_timeout(struct watchdog_device *wdd,
+				   unsigned int timeout)
+{
+
+	struct mei_wdt *wdt = watchdog_get_drvdata(wdd);
+
+	/* valid value is already checked by the caller */
+	wdt->timeout = timeout;
+	wdd->timeout = timeout;
+
+	return 0;
+}
+
+static const struct watchdog_ops wd_ops = {
+	.owner       = THIS_MODULE,
+	.start       = mei_wdt_ops_start,
+	.stop        = mei_wdt_ops_stop,
+	.ping        = mei_wdt_ops_ping,
+	.set_timeout = mei_wdt_ops_set_timeout,
+};
+
+/* not const as the firmware_version field need to be retrieved */
+static struct watchdog_info wd_info = {
+	.identity = INTEL_AMT_WATCHDOG_ID,
+	.options  = WDIOF_KEEPALIVEPING |
+		    WDIOF_SETTIMEOUT |
+		    WDIOF_ALARMONLY,
+};
+
+/**
+ * __mei_wdt_is_registered - check if wdt is registered
+ *
+ * @wdt: mei watchdog device
+ *
+ * Return: true if the wdt is registered with the watchdog subsystem
+ * Locking: should be called under wdt->reg_lock
+ */
+static inline bool __mei_wdt_is_registered(struct mei_wdt *wdt)
+{
+	return !!watchdog_get_drvdata(&wdt->wdd);
+}
+
+/**
+ * mei_wdt_unregister - unregister from the watchdog subsystem
+ *
+ * @wdt: mei watchdog device
+ */
+static void mei_wdt_unregister(struct mei_wdt *wdt)
+{
+	mutex_lock(&wdt->reg_lock);
+
+	if (__mei_wdt_is_registered(wdt)) {
+		watchdog_unregister_device(&wdt->wdd);
+		watchdog_set_drvdata(&wdt->wdd, NULL);
+		memset(&wdt->wdd, 0, sizeof(wdt->wdd));
+	}
+
+	mutex_unlock(&wdt->reg_lock);
+}
+
+/**
+ * mei_wdt_register - register with the watchdog subsystem
+ *
+ * @wdt: mei watchdog device
+ *
+ * Return: 0 if success, negative errno code for failure
+ */
+static int mei_wdt_register(struct mei_wdt *wdt)
+{
+	struct device *dev;
+	int ret;
+
+	if (!wdt || !wdt->cldev)
+		return -EINVAL;
+
+	dev = &wdt->cldev->dev;
+
+	mutex_lock(&wdt->reg_lock);
+
+	if (__mei_wdt_is_registered(wdt)) {
+		ret = 0;
+		goto out;
+	}
+
+	wdt->wdd.info = &wd_info;
+	wdt->wdd.ops = &wd_ops;
+	wdt->wdd.parent = dev;
+	wdt->wdd.timeout = MEI_WDT_DEFAULT_TIMEOUT;
+	wdt->wdd.min_timeout = MEI_WDT_MIN_TIMEOUT;
+	wdt->wdd.max_timeout = MEI_WDT_MAX_TIMEOUT;
+
+	watchdog_set_drvdata(&wdt->wdd, wdt);
+	ret = watchdog_register_device(&wdt->wdd);
+	if (ret) {
+		dev_err(dev, "unable to register watchdog device = %d.\n", ret);
+		watchdog_set_drvdata(&wdt->wdd, NULL);
+	}
+
+	wdt->state = MEI_WDT_IDLE;
+
+out:
+	mutex_unlock(&wdt->reg_lock);
+	return ret;
+}
+
+static void mei_wdt_unregister_work(struct work_struct *work)
+{
+	struct mei_wdt *wdt = container_of(work, struct mei_wdt, unregister);
+
+	mei_wdt_unregister(wdt);
+}
+
+/**
+ * mei_wdt_event_rx - callback for data receive
+ *
+ * @cldev: bus device
+ */
+static void mei_wdt_event_rx(struct mei_cl_device *cldev)
+{
+	struct mei_wdt *wdt = mei_cldev_get_drvdata(cldev);
+	struct mei_wdt_start_response res;
+	const size_t res_len = sizeof(res);
+	int ret;
+
+	ret = mei_cldev_recv(wdt->cldev, (u8 *)&res, res_len);
+	if (ret < 0) {
+		dev_err(&cldev->dev, "failure in recv %d\n", ret);
+		return;
+	}
+
+	/* Empty response can be sent on stop */
+	if (ret == 0)
+		return;
+
+	if (ret < sizeof(struct mei_mc_hdr)) {
+		dev_err(&cldev->dev, "recv small data %d\n", ret);
+		return;
+	}
+
+	if (res.hdr.command != MEI_MANAGEMENT_CONTROL ||
+	    res.hdr.versionnumber != MEI_MC_VERSION_NUMBER) {
+		dev_err(&cldev->dev, "wrong command received\n");
+		return;
+	}
+
+	if (res.hdr.subcommand != MEI_MC_START_WD_TIMER_RES) {
+		dev_warn(&cldev->dev, "unsupported command %d :%s[%d]\n",
+			 res.hdr.subcommand,
+			 mei_wdt_state_str(wdt->state),
+			 wdt->state);
+		return;
+	}
+
+	/* Run the unregistration in a worker as this can be
+	 * run only after ping completion, otherwise the flow will
+	 * deadlock on watchdog core mutex.
+	 */
+	if (wdt->state == MEI_WDT_RUNNING) {
+		if (res.wdstate & MEI_WDT_WDSTATE_NOT_REQUIRED) {
+			wdt->state = MEI_WDT_NOT_REQUIRED;
+			schedule_work(&wdt->unregister);
+		}
+		goto out;
+	}
+
+	if (wdt->state == MEI_WDT_PROBE) {
+		if (res.wdstate & MEI_WDT_WDSTATE_NOT_REQUIRED) {
+			wdt->state = MEI_WDT_NOT_REQUIRED;
+		} else {
+			/* stop the watchdog and register watchdog device */
+			mei_wdt_stop(wdt);
+			mei_wdt_register(wdt);
+		}
+		return;
+	}
+
+	dev_warn(&cldev->dev, "not in correct state %s[%d]\n",
+			 mei_wdt_state_str(wdt->state), wdt->state);
+
+out:
+	if (!completion_done(&wdt->response))
+		complete(&wdt->response);
+}
+
+/*
+ * mei_wdt_notify_event - callback for event notification
+ *
+ * @cldev: bus device
+ */
+static void mei_wdt_notify_event(struct mei_cl_device *cldev)
+{
+	struct mei_wdt *wdt = mei_cldev_get_drvdata(cldev);
+
+	if (wdt->state != MEI_WDT_NOT_REQUIRED)
+		return;
+
+	mei_wdt_register(wdt);
+}
+
+/**
+ * mei_wdt_event - callback for event receive
+ *
+ * @cldev: bus device
+ * @events: event mask
+ * @context: callback context
+ */
+static void mei_wdt_event(struct mei_cl_device *cldev,
+			  u32 events, void *context)
+{
+	if (events & BIT(MEI_CL_EVENT_RX))
+		mei_wdt_event_rx(cldev);
+
+	if (events & BIT(MEI_CL_EVENT_NOTIF))
+		mei_wdt_notify_event(cldev);
+}
+
+#if IS_ENABLED(CONFIG_DEBUG_FS)
+
+static ssize_t mei_dbgfs_read_activation(struct file *file, char __user *ubuf,
+					size_t cnt, loff_t *ppos)
+{
+	struct mei_wdt *wdt = file->private_data;
+	const size_t bufsz = 32;
+	char buf[32];
+	ssize_t pos;
+
+	mutex_lock(&wdt->reg_lock);
+	pos = scnprintf(buf, bufsz, "%s\n",
+		__mei_wdt_is_registered(wdt) ? "activated" : "deactivated");
+	mutex_unlock(&wdt->reg_lock);
+
+	return simple_read_from_buffer(ubuf, cnt, ppos, buf, pos);
+}
+
+static const struct file_operations dbgfs_fops_activation = {
+	.open    = simple_open,
+	.read    = mei_dbgfs_read_activation,
+	.llseek  = generic_file_llseek,
+};
+
+static ssize_t mei_dbgfs_read_state(struct file *file, char __user *ubuf,
+				    size_t cnt, loff_t *ppos)
+{
+	struct mei_wdt *wdt = file->private_data;
+	const size_t bufsz = 32;
+	char buf[bufsz];
+	ssize_t pos;
+
+	pos = scnprintf(buf, bufsz, "state: %s\n",
+			 mei_wdt_state_str(wdt->state));
+
+	return simple_read_from_buffer(ubuf, cnt, ppos, buf, pos);
+}
+
+static const struct file_operations dbgfs_fops_state = {
+	.open = simple_open,
+	.read = mei_dbgfs_read_state,
+	.llseek = generic_file_llseek,
+};
+
+static void dbgfs_unregister(struct mei_wdt *wdt)
+{
+	debugfs_remove_recursive(wdt->dbgfs_dir);
+	wdt->dbgfs_dir = NULL;
+}
+
+static int dbgfs_register(struct mei_wdt *wdt)
+{
+	struct dentry *dir, *f;
+
+	dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
+	if (!dir)
+		return -ENOMEM;
+
+	wdt->dbgfs_dir = dir;
+	f = debugfs_create_file("state", S_IRUSR, dir, wdt, &dbgfs_fops_state);
+	if (!f)
+		goto err;
+
+	f = debugfs_create_file("activation",  S_IRUSR,
+				dir, wdt, &dbgfs_fops_activation);
+	if (!f)
+		goto err;
+
+	return 0;
+err:
+	dbgfs_unregister(wdt);
+	return -ENODEV;
+}
+
+#else
+
+static inline void dbgfs_unregister(struct mei_wdt *wdt) {}
+
+static inline int dbgfs_register(struct mei_wdt *wdt)
+{
+	return 0;
+}
+#endif /* CONFIG_DEBUG_FS */
+
+static int mei_wdt_probe(struct mei_cl_device *cldev,
+			 const struct mei_cl_device_id *id)
+{
+	struct mei_wdt *wdt;
+	int ret;
+
+	wdt = kzalloc(sizeof(struct mei_wdt), GFP_KERNEL);
+	if (!wdt)
+		return -ENOMEM;
+
+	wdt->timeout = MEI_WDT_DEFAULT_TIMEOUT;
+	wdt->state = MEI_WDT_PROBE;
+	wdt->cldev = cldev;
+	wdt->resp_required = mei_cldev_ver(cldev) > 0x1;
+	mutex_init(&wdt->reg_lock);
+	init_completion(&wdt->response);
+	INIT_WORK(&wdt->unregister, mei_wdt_unregister_work);
+
+	mei_cldev_set_drvdata(cldev, wdt);
+
+	ret = mei_cldev_enable(cldev);
+	if (ret < 0) {
+		dev_err(&cldev->dev, "Could not enable cl device\n");
+		goto err_out;
+	}
+
+	ret = mei_cldev_register_event_cb(wdt->cldev,
+					  BIT(MEI_CL_EVENT_RX) |
+					  BIT(MEI_CL_EVENT_NOTIF),
+					  mei_wdt_event, NULL);
+
+	/* on legacy devices notification is not supported
+	 * this doesn't fail the registration for RX event
+	 */
+	if (ret && ret != -EOPNOTSUPP) {
+		dev_err(&cldev->dev, "Could not register event ret=%d\n", ret);
+		goto err_disable;
+	}
+
+	wd_info.firmware_version = mei_cldev_ver(cldev);
+
+	if (wdt->resp_required)
+		ret = mei_wdt_ping(wdt);
+	else
+		ret = mei_wdt_register(wdt);
+
+	if (ret)
+		goto err_disable;
+
+	if (dbgfs_register(wdt))
+		dev_warn(&cldev->dev, "cannot register debugfs\n");
+
+	return 0;
+
+err_disable:
+	mei_cldev_disable(cldev);
+
+err_out:
+	kfree(wdt);
+
+	return ret;
+}
+
+static int mei_wdt_remove(struct mei_cl_device *cldev)
+{
+	struct mei_wdt *wdt = mei_cldev_get_drvdata(cldev);
+
+	/* Free the caller in case of fw initiated or unexpected reset */
+	if (!completion_done(&wdt->response))
+		complete(&wdt->response);
+
+	cancel_work_sync(&wdt->unregister);
+
+	mei_wdt_unregister(wdt);
+
+	mei_cldev_disable(cldev);
+
+	dbgfs_unregister(wdt);
+
+	kfree(wdt);
+
+	return 0;
+}
+
+#define MEI_UUID_WD UUID_LE(0x05B79A6F, 0x4628, 0x4D7F, \
+			    0x89, 0x9D, 0xA9, 0x15, 0x14, 0xCB, 0x32, 0xAB)
+
+static struct mei_cl_device_id mei_wdt_tbl[] = {
+	{ .uuid = MEI_UUID_WD, .version = MEI_CL_VERSION_ANY },
+	/* required last entry */
+	{ }
+};
+MODULE_DEVICE_TABLE(mei, mei_wdt_tbl);
+
+static struct mei_cl_driver mei_wdt_driver = {
+	.id_table = mei_wdt_tbl,
+	.name = KBUILD_MODNAME,
+
+	.probe = mei_wdt_probe,
+	.remove = mei_wdt_remove,
+};
+
+static int __init mei_wdt_init(void)
+{
+	int ret;
+
+	ret = mei_cldev_driver_register(&mei_wdt_driver);
+	if (ret) {
+		pr_err(KBUILD_MODNAME ": module registration failed\n");
+		return ret;
+	}
+	return 0;
+}
+
+static void __exit mei_wdt_exit(void)
+{
+	mei_cldev_driver_unregister(&mei_wdt_driver);
+}
+
+module_init(mei_wdt_init);
+module_exit(mei_wdt_exit);
+
+MODULE_AUTHOR("Intel Corporation");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Device driver for Intel MEI iAMT watchdog");
diff --git a/drivers/xen/xen-pciback/pciback_ops.c b/drivers/xen/xen-pciback/pciback_ops.c
index 73dafdc..fb02214 100644
--- a/drivers/xen/xen-pciback/pciback_ops.c
+++ b/drivers/xen/xen-pciback/pciback_ops.c
@@ -227,8 +227,9 @@ int xen_pcibk_enable_msix(struct xen_pcibk_device *pdev,
 	/*
 	 * PCI_COMMAND_MEMORY must be enabled, otherwise we may not be able
 	 * to access the BARs where the MSI-X entries reside.
+	 * But VF devices are unique in which the PF needs to be checked.
 	 */
-	pci_read_config_word(dev, PCI_COMMAND, &cmd);
+	pci_read_config_word(pci_physfn(dev), PCI_COMMAND, &cmd);
 	if (dev->msi_enabled || !(cmd & PCI_COMMAND_MEMORY))
 		return -ENXIO;
 
@@ -332,6 +333,9 @@ void xen_pcibk_do_op(struct work_struct *data)
 	struct xen_pcibk_dev_data *dev_data = NULL;
 	struct xen_pci_op *op = &pdev->op;
 	int test_intx = 0;
+#ifdef CONFIG_PCI_MSI
+	unsigned int nr = 0;
+#endif
 
 	*op = pdev->sh_info->op;
 	barrier();
@@ -360,6 +364,7 @@ void xen_pcibk_do_op(struct work_struct *data)
 			op->err = xen_pcibk_disable_msi(pdev, dev, op);
 			break;
 		case XEN_PCI_OP_enable_msix:
+			nr = op->value;
 			op->err = xen_pcibk_enable_msix(pdev, dev, op);
 			break;
 		case XEN_PCI_OP_disable_msix:
@@ -382,7 +387,7 @@ void xen_pcibk_do_op(struct work_struct *data)
 	if (op->cmd == XEN_PCI_OP_enable_msix && op->err == 0) {
 		unsigned int i;
 
-		for (i = 0; i < op->value; i++)
+		for (i = 0; i < nr; i++)
 			pdev->sh_info->op.msix_entries[i].vector =
 				op->msix_entries[i].vector;
 	}
diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c
index ad4eb10..c46ee18 100644
--- a/drivers/xen/xen-scsiback.c
+++ b/drivers/xen/xen-scsiback.c
@@ -849,15 +849,31 @@ static int scsiback_map(struct vscsibk_info *info)
 }
 
 /*
+  Check for a translation entry being present
+*/
+static struct v2p_entry *scsiback_chk_translation_entry(
+	struct vscsibk_info *info, struct ids_tuple *v)
+{
+	struct list_head *head = &(info->v2p_entry_lists);
+	struct v2p_entry *entry;
+
+	list_for_each_entry(entry, head, l)
+		if ((entry->v.chn == v->chn) &&
+		    (entry->v.tgt == v->tgt) &&
+		    (entry->v.lun == v->lun))
+			return entry;
+
+	return NULL;
+}
+
+/*
   Add a new translation entry
 */
 static int scsiback_add_translation_entry(struct vscsibk_info *info,
 					  char *phy, struct ids_tuple *v)
 {
 	int err = 0;
-	struct v2p_entry *entry;
 	struct v2p_entry *new;
-	struct list_head *head = &(info->v2p_entry_lists);
 	unsigned long flags;
 	char *lunp;
 	unsigned long long unpacked_lun;
@@ -917,15 +933,10 @@ static int scsiback_add_translation_entry(struct vscsibk_info *info,
 	spin_lock_irqsave(&info->v2p_lock, flags);
 
 	/* Check double assignment to identical virtual ID */
-	list_for_each_entry(entry, head, l) {
-		if ((entry->v.chn == v->chn) &&
-		    (entry->v.tgt == v->tgt) &&
-		    (entry->v.lun == v->lun)) {
-			pr_warn("Virtual ID is already used. Assignment was not performed.\n");
-			err = -EEXIST;
-			goto out;
-		}
-
+	if (scsiback_chk_translation_entry(info, v)) {
+		pr_warn("Virtual ID is already used. Assignment was not performed.\n");
+		err = -EEXIST;
+		goto out;
 	}
 
 	/* Create a new translation entry and add to the list */
@@ -933,18 +944,18 @@ static int scsiback_add_translation_entry(struct vscsibk_info *info,
 	new->v = *v;
 	new->tpg = tpg;
 	new->lun = unpacked_lun;
-	list_add_tail(&new->l, head);
+	list_add_tail(&new->l, &info->v2p_entry_lists);
 
 out:
 	spin_unlock_irqrestore(&info->v2p_lock, flags);
 
 out_free:
-	mutex_lock(&tpg->tv_tpg_mutex);
-	tpg->tv_tpg_fe_count--;
-	mutex_unlock(&tpg->tv_tpg_mutex);
-
-	if (err)
+	if (err) {
+		mutex_lock(&tpg->tv_tpg_mutex);
+		tpg->tv_tpg_fe_count--;
+		mutex_unlock(&tpg->tv_tpg_mutex);
 		kfree(new);
+	}
 
 	return err;
 }
@@ -956,39 +967,40 @@ static void __scsiback_del_translation_entry(struct v2p_entry *entry)
 }
 
 /*
-  Delete the translation entry specfied
+  Delete the translation entry specified
 */
 static int scsiback_del_translation_entry(struct vscsibk_info *info,
 					  struct ids_tuple *v)
 {
 	struct v2p_entry *entry;
-	struct list_head *head = &(info->v2p_entry_lists);
 	unsigned long flags;
+	int ret = 0;
 
 	spin_lock_irqsave(&info->v2p_lock, flags);
 	/* Find out the translation entry specified */
-	list_for_each_entry(entry, head, l) {
-		if ((entry->v.chn == v->chn) &&
-		    (entry->v.tgt == v->tgt) &&
-		    (entry->v.lun == v->lun)) {
-			goto found;
-		}
-	}
-
-	spin_unlock_irqrestore(&info->v2p_lock, flags);
-	return 1;
-
-found:
-	/* Delete the translation entry specfied */
-	__scsiback_del_translation_entry(entry);
+	entry = scsiback_chk_translation_entry(info, v);
+	if (entry)
+		__scsiback_del_translation_entry(entry);
+	else
+		ret = -ENOENT;
 
 	spin_unlock_irqrestore(&info->v2p_lock, flags);
-	return 0;
+	return ret;
 }
 
 static void scsiback_do_add_lun(struct vscsibk_info *info, const char *state,
 				char *phy, struct ids_tuple *vir, int try)
 {
+	struct v2p_entry *entry;
+	unsigned long flags;
+
+	if (try) {
+		spin_lock_irqsave(&info->v2p_lock, flags);
+		entry = scsiback_chk_translation_entry(info, vir);
+		spin_unlock_irqrestore(&info->v2p_lock, flags);
+		if (entry)
+			return;
+	}
 	if (!scsiback_add_translation_entry(info, phy, vir)) {
 		if (xenbus_printf(XBT_NIL, info->dev->nodename, state,
 				  "%d", XenbusStateInitialised)) {
diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c
index 9433e46..912b64e 100644
--- a/drivers/xen/xenbus/xenbus_dev_frontend.c
+++ b/drivers/xen/xenbus/xenbus_dev_frontend.c
@@ -188,6 +188,8 @@ static int queue_reply(struct list_head *queue, const void *data, size_t len)
 
 	if (len == 0)
 		return 0;
+	if (len > XENSTORE_PAYLOAD_MAX)
+		return -EINVAL;
 
 	rb = kmalloc(sizeof(*rb) + len, GFP_KERNEL);
 	if (rb == NULL)
diff --git a/fs/affs/file.c b/fs/affs/file.c
index 0548c53..22fc7c8 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -511,8 +511,6 @@ affs_do_readpage_ofs(struct page *page, unsigned to)
 	pr_debug("%s(%lu, %ld, 0, %d)\n", __func__, inode->i_ino,
 		 page->index, to);
 	BUG_ON(to > PAGE_CACHE_SIZE);
-	kmap(page);
-	data = page_address(page);
 	bsize = AFFS_SB(sb)->s_data_blksize;
 	tmp = page->index << PAGE_CACHE_SHIFT;
 	bidx = tmp / bsize;
@@ -524,14 +522,15 @@ affs_do_readpage_ofs(struct page *page, unsigned to)
 			return PTR_ERR(bh);
 		tmp = min(bsize - boff, to - pos);
 		BUG_ON(pos + tmp > to || tmp > bsize);
+		data = kmap_atomic(page);
 		memcpy(data + pos, AFFS_DATA(bh) + boff, tmp);
+		kunmap_atomic(data);
 		affs_brelse(bh);
 		bidx++;
 		pos += tmp;
 		boff = 0;
 	}
 	flush_dcache_page(page);
-	kunmap(page);
 	return 0;
 }
 
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 051ea48..7d914c6 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -653,7 +653,7 @@ static unsigned long randomize_stack_top(unsigned long stack_top)
 
 	if ((current->flags & PF_RANDOMIZE) &&
 		!(current->personality & ADDR_NO_RANDOMIZE)) {
-		random_variable = (unsigned long) get_random_int();
+		random_variable = get_random_long();
 		random_variable &= STACK_RND_MASK;
 		random_variable <<= PAGE_SHIFT;
 	}
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 39b3a17..826b164 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1201,7 +1201,11 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
 		bdev->bd_disk = disk;
 		bdev->bd_queue = disk->queue;
 		bdev->bd_contains = bdev;
-		bdev->bd_inode->i_flags = disk->fops->direct_access ? S_DAX : 0;
+		if (IS_ENABLED(CONFIG_BLK_DEV_DAX) && disk->fops->direct_access)
+			bdev->bd_inode->i_flags = S_DAX;
+		else
+			bdev->bd_inode->i_flags = 0;
+
 		if (!partno) {
 			ret = -ENXIO;
 			bdev->bd_part = disk_get_part(disk, partno);
@@ -1693,13 +1697,24 @@ static int blkdev_releasepage(struct page *page, gfp_t wait)
 	return try_to_free_buffers(page);
 }
 
+static int blkdev_writepages(struct address_space *mapping,
+			     struct writeback_control *wbc)
+{
+	if (dax_mapping(mapping)) {
+		struct block_device *bdev = I_BDEV(mapping->host);
+
+		return dax_writeback_mapping_range(mapping, bdev, wbc);
+	}
+	return generic_writepages(mapping, wbc);
+}
+
 static const struct address_space_operations def_blk_aops = {
 	.readpage	= blkdev_readpage,
 	.readpages	= blkdev_readpages,
 	.writepage	= blkdev_writepage,
 	.write_begin	= blkdev_write_begin,
 	.write_end	= blkdev_write_end,
-	.writepages	= generic_writepages,
+	.writepages	= blkdev_writepages,
 	.releasepage	= blkdev_releasepage,
 	.direct_IO	= blkdev_direct_IO,
 	.is_dirty_writeback = buffer_check_dirty_writeback,
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index b90cd37..f6dac40 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1406,7 +1406,8 @@ char *btrfs_ref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path,
 			read_extent_buffer(eb, dest + bytes_left,
 					   name_off, name_len);
 		if (eb != eb_in) {
-			btrfs_tree_read_unlock_blocking(eb);
+			if (!path->skip_locking)
+				btrfs_tree_read_unlock_blocking(eb);
 			free_extent_buffer(eb);
 		}
 		ret = btrfs_find_item(fs_root, path, parent, 0,
@@ -1426,9 +1427,10 @@ char *btrfs_ref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path,
 		eb = path->nodes[0];
 		/* make sure we can use eb after releasing the path */
 		if (eb != eb_in) {
-			atomic_inc(&eb->refs);
-			btrfs_tree_read_lock(eb);
-			btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
+			if (!path->skip_locking)
+				btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
+			path->nodes[0] = NULL;
+			path->locks[0] = 0;
 		}
 		btrfs_release_path(path);
 		iref = btrfs_item_ptr(eb, slot, struct btrfs_inode_ref);
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index c473c42..3346cd8 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -637,11 +637,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
 	faili = nr_pages - 1;
 	cb->nr_pages = nr_pages;
 
-	/* In the parent-locked case, we only locked the range we are
-	 * interested in.  In all other cases, we can opportunistically
-	 * cache decompressed data that goes beyond the requested range. */
-	if (!(bio_flags & EXTENT_BIO_PARENT_LOCKED))
-		add_ra_bio_pages(inode, em_start + em_len, cb);
+	add_ra_bio_pages(inode, em_start + em_len, cb);
 
 	/* include any pages we added in add_ra-bio_pages */
 	uncompressed_len = bio->bi_vcnt * PAGE_CACHE_SIZE;
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 0be47e4..b57daa8 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1689,7 +1689,7 @@ int btrfs_should_delete_dir_index(struct list_head *del_list,
  *
  */
 int btrfs_readdir_delayed_dir_index(struct dir_context *ctx,
-				    struct list_head *ins_list)
+				    struct list_head *ins_list, bool *emitted)
 {
 	struct btrfs_dir_item *di;
 	struct btrfs_delayed_item *curr, *next;
@@ -1733,6 +1733,7 @@ int btrfs_readdir_delayed_dir_index(struct dir_context *ctx,
 
 		if (over)
 			return 1;
+		*emitted = true;
 	}
 	return 0;
 }
diff --git a/fs/btrfs/delayed-inode.h b/fs/btrfs/delayed-inode.h
index f70119f..0167853 100644
--- a/fs/btrfs/delayed-inode.h
+++ b/fs/btrfs/delayed-inode.h
@@ -144,7 +144,7 @@ void btrfs_put_delayed_items(struct list_head *ins_list,
 int btrfs_should_delete_dir_index(struct list_head *del_list,
 				  u64 index);
 int btrfs_readdir_delayed_dir_index(struct dir_context *ctx,
-				    struct list_head *ins_list);
+				    struct list_head *ins_list, bool *emitted);
 
 /* for init */
 int __init btrfs_delayed_inode_init(void);
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 2e7c97a..392592d 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2897,12 +2897,11 @@ static int __do_readpage(struct extent_io_tree *tree,
 	struct block_device *bdev;
 	int ret;
 	int nr = 0;
-	int parent_locked = *bio_flags & EXTENT_BIO_PARENT_LOCKED;
 	size_t pg_offset = 0;
 	size_t iosize;
 	size_t disk_io_size;
 	size_t blocksize = inode->i_sb->s_blocksize;
-	unsigned long this_bio_flag = *bio_flags & EXTENT_BIO_PARENT_LOCKED;
+	unsigned long this_bio_flag = 0;
 
 	set_page_extent_mapped(page);
 
@@ -2942,18 +2941,16 @@ static int __do_readpage(struct extent_io_tree *tree,
 			kunmap_atomic(userpage);
 			set_extent_uptodate(tree, cur, cur + iosize - 1,
 					    &cached, GFP_NOFS);
-			if (!parent_locked)
-				unlock_extent_cached(tree, cur,
-						     cur + iosize - 1,
-						     &cached, GFP_NOFS);
+			unlock_extent_cached(tree, cur,
+					     cur + iosize - 1,
+					     &cached, GFP_NOFS);
 			break;
 		}
 		em = __get_extent_map(inode, page, pg_offset, cur,
 				      end - cur + 1, get_extent, em_cached);
 		if (IS_ERR_OR_NULL(em)) {
 			SetPageError(page);
-			if (!parent_locked)
-				unlock_extent(tree, cur, end);
+			unlock_extent(tree, cur, end);
 			break;
 		}
 		extent_offset = cur - em->start;
@@ -3038,12 +3035,9 @@ static int __do_readpage(struct extent_io_tree *tree,
 
 			set_extent_uptodate(tree, cur, cur + iosize - 1,
 					    &cached, GFP_NOFS);
-			if (parent_locked)
-				free_extent_state(cached);
-			else
-				unlock_extent_cached(tree, cur,
-						     cur + iosize - 1,
-						     &cached, GFP_NOFS);
+			unlock_extent_cached(tree, cur,
+					     cur + iosize - 1,
+					     &cached, GFP_NOFS);
 			cur = cur + iosize;
 			pg_offset += iosize;
 			continue;
@@ -3052,8 +3046,7 @@ static int __do_readpage(struct extent_io_tree *tree,
 		if (test_range_bit(tree, cur, cur_end,
 				   EXTENT_UPTODATE, 1, NULL)) {
 			check_page_uptodate(tree, page);
-			if (!parent_locked)
-				unlock_extent(tree, cur, cur + iosize - 1);
+			unlock_extent(tree, cur, cur + iosize - 1);
 			cur = cur + iosize;
 			pg_offset += iosize;
 			continue;
@@ -3063,8 +3056,7 @@ static int __do_readpage(struct extent_io_tree *tree,
 		 */
 		if (block_start == EXTENT_MAP_INLINE) {
 			SetPageError(page);
-			if (!parent_locked)
-				unlock_extent(tree, cur, cur + iosize - 1);
+			unlock_extent(tree, cur, cur + iosize - 1);
 			cur = cur + iosize;
 			pg_offset += iosize;
 			continue;
@@ -3083,8 +3075,7 @@ static int __do_readpage(struct extent_io_tree *tree,
 			*bio_flags = this_bio_flag;
 		} else {
 			SetPageError(page);
-			if (!parent_locked)
-				unlock_extent(tree, cur, cur + iosize - 1);
+			unlock_extent(tree, cur, cur + iosize - 1);
 		}
 		cur = cur + iosize;
 		pg_offset += iosize;
@@ -3213,20 +3204,6 @@ int extent_read_full_page(struct extent_io_tree *tree, struct page *page,
 	return ret;
 }
 
-int extent_read_full_page_nolock(struct extent_io_tree *tree, struct page *page,
-				 get_extent_t *get_extent, int mirror_num)
-{
-	struct bio *bio = NULL;
-	unsigned long bio_flags = EXTENT_BIO_PARENT_LOCKED;
-	int ret;
-
-	ret = __do_readpage(tree, page, get_extent, NULL, &bio, mirror_num,
-			    &bio_flags, READ, NULL);
-	if (bio)
-		ret = submit_one_bio(READ, bio, mirror_num, bio_flags);
-	return ret;
-}
-
 static noinline void update_nr_written(struct page *page,
 				      struct writeback_control *wbc,
 				      unsigned long nr_written)
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 0377413..880d529 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -29,7 +29,6 @@
  */
 #define EXTENT_BIO_COMPRESSED 1
 #define EXTENT_BIO_TREE_LOG 2
-#define EXTENT_BIO_PARENT_LOCKED 4
 #define EXTENT_BIO_FLAG_SHIFT 16
 
 /* these are bit numbers for test/set bit */
@@ -210,8 +209,6 @@ static inline int lock_extent(struct extent_io_tree *tree, u64 start, u64 end)
 int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end);
 int extent_read_full_page(struct extent_io_tree *tree, struct page *page,
 			  get_extent_t *get_extent, int mirror_num);
-int extent_read_full_page_nolock(struct extent_io_tree *tree, struct page *page,
-				 get_extent_t *get_extent, int mirror_num);
 int __init extent_io_init(void);
 void extent_io_exit(void);
 
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 5f06eb1..d96f5cf 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5717,6 +5717,7 @@ static int btrfs_real_readdir(struct file *file, struct dir_context *ctx)
 	char *name_ptr;
 	int name_len;
 	int is_curr = 0;	/* ctx->pos points to the current index? */
+	bool emitted;
 
 	/* FIXME, use a real flag for deciding about the key type */
 	if (root->fs_info->tree_root == root)
@@ -5745,6 +5746,7 @@ static int btrfs_real_readdir(struct file *file, struct dir_context *ctx)
 	if (ret < 0)
 		goto err;
 
+	emitted = false;
 	while (1) {
 		leaf = path->nodes[0];
 		slot = path->slots[0];
@@ -5824,6 +5826,7 @@ skip:
 
 			if (over)
 				goto nopos;
+			emitted = true;
 			di_len = btrfs_dir_name_len(leaf, di) +
 				 btrfs_dir_data_len(leaf, di) + sizeof(*di);
 			di_cur += di_len;
@@ -5836,11 +5839,20 @@ next:
 	if (key_type == BTRFS_DIR_INDEX_KEY) {
 		if (is_curr)
 			ctx->pos++;
-		ret = btrfs_readdir_delayed_dir_index(ctx, &ins_list);
+		ret = btrfs_readdir_delayed_dir_index(ctx, &ins_list, &emitted);
 		if (ret)
 			goto nopos;
 	}
 
+	/*
+	 * If we haven't emitted any dir entry, we must not touch ctx->pos as
+	 * it was was set to the termination value in previous call. We assume
+	 * that "." and ".." were emitted if we reach this point and set the
+	 * termination value as well for an empty directory.
+	 */
+	if (ctx->pos > 2 && !emitted)
+		goto nopos;
+
 	/* Reached end of directory/root. Bump pos past the last item. */
 	ctx->pos++;
 
@@ -7974,6 +7986,7 @@ static void btrfs_endio_direct_read(struct bio *bio)
 
 	kfree(dip);
 
+	dio_bio->bi_error = bio->bi_error;
 	dio_end_io(dio_bio, bio->bi_error);
 
 	if (io_bio->end_io)
@@ -8028,6 +8041,7 @@ static void btrfs_endio_direct_write(struct bio *bio)
 
 	kfree(dip);
 
+	dio_bio->bi_error = bio->bi_error;
 	dio_end_io(dio_bio, bio->bi_error);
 	bio_put(bio);
 }
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 952172c..48aee98 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2794,24 +2794,29 @@ out:
 static struct page *extent_same_get_page(struct inode *inode, pgoff_t index)
 {
 	struct page *page;
-	struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
 
 	page = grab_cache_page(inode->i_mapping, index);
 	if (!page)
-		return NULL;
+		return ERR_PTR(-ENOMEM);
 
 	if (!PageUptodate(page)) {
-		if (extent_read_full_page_nolock(tree, page, btrfs_get_extent,
-						 0))
-			return NULL;
+		int ret;
+
+		ret = btrfs_readpage(NULL, page);
+		if (ret)
+			return ERR_PTR(ret);
 		lock_page(page);
 		if (!PageUptodate(page)) {
 			unlock_page(page);
 			page_cache_release(page);
-			return NULL;
+			return ERR_PTR(-EIO);
+		}
+		if (page->mapping != inode->i_mapping) {
+			unlock_page(page);
+			page_cache_release(page);
+			return ERR_PTR(-EAGAIN);
 		}
 	}
-	unlock_page(page);
 
 	return page;
 }
@@ -2823,17 +2828,31 @@ static int gather_extent_pages(struct inode *inode, struct page **pages,
 	pgoff_t index = off >> PAGE_CACHE_SHIFT;
 
 	for (i = 0; i < num_pages; i++) {
+again:
 		pages[i] = extent_same_get_page(inode, index + i);
-		if (!pages[i])
-			return -ENOMEM;
+		if (IS_ERR(pages[i])) {
+			int err = PTR_ERR(pages[i]);
+
+			if (err == -EAGAIN)
+				goto again;
+			pages[i] = NULL;
+			return err;
+		}
 	}
 	return 0;
 }
 
-static inline void lock_extent_range(struct inode *inode, u64 off, u64 len)
+static int lock_extent_range(struct inode *inode, u64 off, u64 len,
+			     bool retry_range_locking)
 {
-	/* do any pending delalloc/csum calc on src, one way or
-	   another, and lock file content */
+	/*
+	 * Do any pending delalloc/csum calculations on inode, one way or
+	 * another, and lock file content.
+	 * The locking order is:
+	 *
+	 *   1) pages
+	 *   2) range in the inode's io tree
+	 */
 	while (1) {
 		struct btrfs_ordered_extent *ordered;
 		lock_extent(&BTRFS_I(inode)->io_tree, off, off + len - 1);
@@ -2851,8 +2870,11 @@ static inline void lock_extent_range(struct inode *inode, u64 off, u64 len)
 		unlock_extent(&BTRFS_I(inode)->io_tree, off, off + len - 1);
 		if (ordered)
 			btrfs_put_ordered_extent(ordered);
+		if (!retry_range_locking)
+			return -EAGAIN;
 		btrfs_wait_ordered_range(inode, off, len);
 	}
+	return 0;
 }
 
 static void btrfs_double_inode_unlock(struct inode *inode1, struct inode *inode2)
@@ -2877,15 +2899,24 @@ static void btrfs_double_extent_unlock(struct inode *inode1, u64 loff1,
 	unlock_extent(&BTRFS_I(inode2)->io_tree, loff2, loff2 + len - 1);
 }
 
-static void btrfs_double_extent_lock(struct inode *inode1, u64 loff1,
-				     struct inode *inode2, u64 loff2, u64 len)
+static int btrfs_double_extent_lock(struct inode *inode1, u64 loff1,
+				    struct inode *inode2, u64 loff2, u64 len,
+				    bool retry_range_locking)
 {
+	int ret;
+
 	if (inode1 < inode2) {
 		swap(inode1, inode2);
 		swap(loff1, loff2);
 	}
-	lock_extent_range(inode1, loff1, len);
-	lock_extent_range(inode2, loff2, len);
+	ret = lock_extent_range(inode1, loff1, len, retry_range_locking);
+	if (ret)
+		return ret;
+	ret = lock_extent_range(inode2, loff2, len, retry_range_locking);
+	if (ret)
+		unlock_extent(&BTRFS_I(inode1)->io_tree, loff1,
+			      loff1 + len - 1);
+	return ret;
 }
 
 struct cmp_pages {
@@ -2901,11 +2932,15 @@ static void btrfs_cmp_data_free(struct cmp_pages *cmp)
 
 	for (i = 0; i < cmp->num_pages; i++) {
 		pg = cmp->src_pages[i];
-		if (pg)
+		if (pg) {
+			unlock_page(pg);
 			page_cache_release(pg);
+		}
 		pg = cmp->dst_pages[i];
-		if (pg)
+		if (pg) {
+			unlock_page(pg);
 			page_cache_release(pg);
+		}
 	}
 	kfree(cmp->src_pages);
 	kfree(cmp->dst_pages);
@@ -2966,6 +3001,8 @@ static int btrfs_cmp_data(struct inode *src, u64 loff, struct inode *dst,
 
 		src_page = cmp->src_pages[i];
 		dst_page = cmp->dst_pages[i];
+		ASSERT(PageLocked(src_page));
+		ASSERT(PageLocked(dst_page));
 
 		addr = kmap_atomic(src_page);
 		dst_addr = kmap_atomic(dst_page);
@@ -3078,14 +3115,46 @@ static int btrfs_extent_same(struct inode *src, u64 loff, u64 olen,
 		goto out_unlock;
 	}
 
+again:
 	ret = btrfs_cmp_data_prepare(src, loff, dst, dst_loff, olen, &cmp);
 	if (ret)
 		goto out_unlock;
 
 	if (same_inode)
-		lock_extent_range(src, same_lock_start, same_lock_len);
+		ret = lock_extent_range(src, same_lock_start, same_lock_len,
+					false);
 	else
-		btrfs_double_extent_lock(src, loff, dst, dst_loff, len);
+		ret = btrfs_double_extent_lock(src, loff, dst, dst_loff, len,
+					       false);
+	/*
+	 * If one of the inodes has dirty pages in the respective range or
+	 * ordered extents, we need to flush dellaloc and wait for all ordered
+	 * extents in the range. We must unlock the pages and the ranges in the
+	 * io trees to avoid deadlocks when flushing delalloc (requires locking
+	 * pages) and when waiting for ordered extents to complete (they require
+	 * range locking).
+	 */
+	if (ret == -EAGAIN) {
+		/*
+		 * Ranges in the io trees already unlocked. Now unlock all
+		 * pages before waiting for all IO to complete.
+		 */
+		btrfs_cmp_data_free(&cmp);
+		if (same_inode) {
+			btrfs_wait_ordered_range(src, same_lock_start,
+						 same_lock_len);
+		} else {
+			btrfs_wait_ordered_range(src, loff, len);
+			btrfs_wait_ordered_range(dst, dst_loff, len);
+		}
+		goto again;
+	}
+	ASSERT(ret == 0);
+	if (WARN_ON(ret)) {
+		/* ranges in the io trees already unlocked */
+		btrfs_cmp_data_free(&cmp);
+		return ret;
+	}
 
 	/* pass original length for comparison so we stay within i_size */
 	ret = btrfs_cmp_data(src, loff, dst, dst_loff, olen, &cmp);
@@ -3795,9 +3864,15 @@ static noinline int btrfs_clone_files(struct file *file, struct file *file_src,
 		u64 lock_start = min_t(u64, off, destoff);
 		u64 lock_len = max_t(u64, off, destoff) + len - lock_start;
 
-		lock_extent_range(src, lock_start, lock_len);
+		ret = lock_extent_range(src, lock_start, lock_len, true);
 	} else {
-		btrfs_double_extent_lock(src, off, inode, destoff, len);
+		ret = btrfs_double_extent_lock(src, off, inode, destoff, len,
+					       true);
+	}
+	ASSERT(ret == 0);
+	if (WARN_ON(ret)) {
+		/* ranges in the io trees already unlocked */
+		goto out_unlock;
 	}
 
 	ret = btrfs_clone(src, inode, off, olen, len, destoff, 0);
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index 7dc886c..e956cba 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -175,7 +175,7 @@ char *cifs_compose_mount_options(const char *sb_mountdata,
 	 * string to the length of the original string to allow for worst case.
 	 */
 	md_len = strlen(sb_mountdata) + INET6_ADDRSTRLEN;
-	mountdata = kzalloc(md_len + 1, GFP_KERNEL);
+	mountdata = kzalloc(md_len + sizeof("ip=") + 1, GFP_KERNEL);
 	if (mountdata == NULL) {
 		rc = -ENOMEM;
 		goto compose_mount_options_err;
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index afa09fc..e682b36 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -714,7 +714,7 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
 
 	ses->auth_key.response = kmalloc(baselen + tilen, GFP_KERNEL);
 	if (!ses->auth_key.response) {
-		rc = ENOMEM;
+		rc = -ENOMEM;
 		ses->auth_key.len = 0;
 		goto setup_ntlmv2_rsp_ret;
 	}
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 4fbd92d..a763cd3 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2999,8 +2999,7 @@ ip_rfc1001_connect(struct TCP_Server_Info *server)
 	if (ses_init_buf) {
 		ses_init_buf->trailer.session_req.called_len = 32;
 
-		if (server->server_RFC1001_name &&
-		    server->server_RFC1001_name[0] != 0)
+		if (server->server_RFC1001_name[0] != 0)
 			rfc1002mangle(ses_init_buf->trailer.
 				      session_req.called_name,
 				      server->server_RFC1001_name,
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 6402eaf..bd01b92 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1040,28 +1040,6 @@ COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS)
 /* PPPOX */
 COMPATIBLE_IOCTL(PPPOEIOCSFWD)
 COMPATIBLE_IOCTL(PPPOEIOCDFWD)
-/* ppdev */
-COMPATIBLE_IOCTL(PPSETMODE)
-COMPATIBLE_IOCTL(PPRSTATUS)
-COMPATIBLE_IOCTL(PPRCONTROL)
-COMPATIBLE_IOCTL(PPWCONTROL)
-COMPATIBLE_IOCTL(PPFCONTROL)
-COMPATIBLE_IOCTL(PPRDATA)
-COMPATIBLE_IOCTL(PPWDATA)
-COMPATIBLE_IOCTL(PPCLAIM)
-COMPATIBLE_IOCTL(PPRELEASE)
-COMPATIBLE_IOCTL(PPYIELD)
-COMPATIBLE_IOCTL(PPEXCL)
-COMPATIBLE_IOCTL(PPDATADIR)
-COMPATIBLE_IOCTL(PPNEGOT)
-COMPATIBLE_IOCTL(PPWCTLONIRQ)
-COMPATIBLE_IOCTL(PPCLRIRQ)
-COMPATIBLE_IOCTL(PPSETPHASE)
-COMPATIBLE_IOCTL(PPGETMODES)
-COMPATIBLE_IOCTL(PPGETMODE)
-COMPATIBLE_IOCTL(PPGETPHASE)
-COMPATIBLE_IOCTL(PPGETFLAGS)
-COMPATIBLE_IOCTL(PPSETFLAGS)
 /* Big A */
 /* sparc only */
 /* Big Q for sound/OSS */
diff --git a/fs/dax.c b/fs/dax.c
index fc2e314..7111724 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -79,15 +79,14 @@ struct page *read_dax_sector(struct block_device *bdev, sector_t n)
 }
 
 /*
- * dax_clear_blocks() is called from within transaction context from XFS,
+ * dax_clear_sectors() is called from within transaction context from XFS,
  * and hence this means the stack from this point must follow GFP_NOFS
  * semantics for all operations.
  */
-int dax_clear_blocks(struct inode *inode, sector_t block, long _size)
+int dax_clear_sectors(struct block_device *bdev, sector_t _sector, long _size)
 {
-	struct block_device *bdev = inode->i_sb->s_bdev;
 	struct blk_dax_ctl dax = {
-		.sector = block << (inode->i_blkbits - 9),
+		.sector = _sector,
 		.size = _size,
 	};
 
@@ -109,7 +108,7 @@ int dax_clear_blocks(struct inode *inode, sector_t block, long _size)
 	wmb_pmem();
 	return 0;
 }
-EXPORT_SYMBOL_GPL(dax_clear_blocks);
+EXPORT_SYMBOL_GPL(dax_clear_sectors);
 
 /* the clear_pmem() calls are ordered by a wmb_pmem() in the caller */
 static void dax_new_buf(void __pmem *addr, unsigned size, unsigned first,
@@ -485,11 +484,10 @@ static int dax_writeback_one(struct block_device *bdev,
  * end]. This is required by data integrity operations to ensure file data is
  * on persistent storage prior to completion of the operation.
  */
-int dax_writeback_mapping_range(struct address_space *mapping, loff_t start,
-		loff_t end)
+int dax_writeback_mapping_range(struct address_space *mapping,
+		struct block_device *bdev, struct writeback_control *wbc)
 {
 	struct inode *inode = mapping->host;
-	struct block_device *bdev = inode->i_sb->s_bdev;
 	pgoff_t start_index, end_index, pmd_index;
 	pgoff_t indices[PAGEVEC_SIZE];
 	struct pagevec pvec;
@@ -500,8 +498,11 @@ int dax_writeback_mapping_range(struct address_space *mapping, loff_t start,
 	if (WARN_ON_ONCE(inode->i_blkbits != PAGE_SHIFT))
 		return -EIO;
 
-	start_index = start >> PAGE_CACHE_SHIFT;
-	end_index = end >> PAGE_CACHE_SHIFT;
+	if (!mapping->nrexceptional || wbc->sync_mode != WB_SYNC_ALL)
+		return 0;
+
+	start_index = wbc->range_start >> PAGE_CACHE_SHIFT;
+	end_index = wbc->range_end >> PAGE_CACHE_SHIFT;
 	pmd_index = DAX_PMD_INDEX(start_index);
 
 	rcu_read_lock();
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 1f107fd..655f21f 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -575,6 +575,26 @@ void devpts_kill_index(struct inode *ptmx_inode, int idx)
 	mutex_unlock(&allocated_ptys_lock);
 }
 
+/*
+ * pty code needs to hold extra references in case of last /dev/tty close
+ */
+
+void devpts_add_ref(struct inode *ptmx_inode)
+{
+	struct super_block *sb = pts_sb_from_inode(ptmx_inode);
+
+	atomic_inc(&sb->s_active);
+	ihold(ptmx_inode);
+}
+
+void devpts_del_ref(struct inode *ptmx_inode)
+{
+	struct super_block *sb = pts_sb_from_inode(ptmx_inode);
+
+	iput(ptmx_inode);
+	deactivate_super(sb);
+}
+
 /**
  * devpts_pty_new -- create a new inode in /dev/pts/
  * @ptmx_inode: inode of the master
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 1b2f7ff..d6a9012 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -472,8 +472,8 @@ static int dio_bio_complete(struct dio *dio, struct bio *bio)
 		dio->io_error = -EIO;
 
 	if (dio->is_async && dio->rw == READ && dio->should_dirty) {
-		bio_check_pages_dirty(bio);	/* transfers ownership */
 		err = bio->bi_error;
+		bio_check_pages_dirty(bio);	/* transfers ownership */
 	} else {
 		bio_for_each_segment_all(bvec, bio, i) {
 			struct page *page = bvec->bv_page;
diff --git a/fs/efivarfs/file.c b/fs/efivarfs/file.c
index c424e48..d48e0d2 100644
--- a/fs/efivarfs/file.c
+++ b/fs/efivarfs/file.c
@@ -10,6 +10,7 @@
 #include <linux/efi.h>
 #include <linux/fs.h>
 #include <linux/slab.h>
+#include <linux/mount.h>
 
 #include "internal.h"
 
@@ -103,9 +104,78 @@ out_free:
 	return size;
 }
 
+static int
+efivarfs_ioc_getxflags(struct file *file, void __user *arg)
+{
+	struct inode *inode = file->f_mapping->host;
+	unsigned int i_flags;
+	unsigned int flags = 0;
+
+	i_flags = inode->i_flags;
+	if (i_flags & S_IMMUTABLE)
+		flags |= FS_IMMUTABLE_FL;
+
+	if (copy_to_user(arg, &flags, sizeof(flags)))
+		return -EFAULT;
+	return 0;
+}
+
+static int
+efivarfs_ioc_setxflags(struct file *file, void __user *arg)
+{
+	struct inode *inode = file->f_mapping->host;
+	unsigned int flags;
+	unsigned int i_flags = 0;
+	int error;
+
+	if (!inode_owner_or_capable(inode))
+		return -EACCES;
+
+	if (copy_from_user(&flags, arg, sizeof(flags)))
+		return -EFAULT;
+
+	if (flags & ~FS_IMMUTABLE_FL)
+		return -EOPNOTSUPP;
+
+	if (!capable(CAP_LINUX_IMMUTABLE))
+		return -EPERM;
+
+	if (flags & FS_IMMUTABLE_FL)
+		i_flags |= S_IMMUTABLE;
+
+
+	error = mnt_want_write_file(file);
+	if (error)
+		return error;
+
+	inode_lock(inode);
+	inode_set_flags(inode, i_flags, S_IMMUTABLE);
+	inode_unlock(inode);
+
+	mnt_drop_write_file(file);
+
+	return 0;
+}
+
+long
+efivarfs_file_ioctl(struct file *file, unsigned int cmd, unsigned long p)
+{
+	void __user *arg = (void __user *)p;
+
+	switch (cmd) {
+	case FS_IOC_GETFLAGS:
+		return efivarfs_ioc_getxflags(file, arg);
+	case FS_IOC_SETFLAGS:
+		return efivarfs_ioc_setxflags(file, arg);
+	}
+
+	return -ENOTTY;
+}
+
 const struct file_operations efivarfs_file_operations = {
 	.open	= simple_open,
 	.read	= efivarfs_file_read,
 	.write	= efivarfs_file_write,
 	.llseek	= no_llseek,
+	.unlocked_ioctl = efivarfs_file_ioctl,
 };
diff --git a/fs/efivarfs/inode.c b/fs/efivarfs/inode.c
index 3381b9d..e2ab6d0 100644
--- a/fs/efivarfs/inode.c
+++ b/fs/efivarfs/inode.c
@@ -15,7 +15,8 @@
 #include "internal.h"
 
 struct inode *efivarfs_get_inode(struct super_block *sb,
-				const struct inode *dir, int mode, dev_t dev)
+				const struct inode *dir, int mode,
+				dev_t dev, bool is_removable)
 {
 	struct inode *inode = new_inode(sb);
 
@@ -23,6 +24,7 @@ struct inode *efivarfs_get_inode(struct super_block *sb,
 		inode->i_ino = get_next_ino();
 		inode->i_mode = mode;
 		inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+		inode->i_flags = is_removable ? 0 : S_IMMUTABLE;
 		switch (mode & S_IFMT) {
 		case S_IFREG:
 			inode->i_fop = &efivarfs_file_operations;
@@ -102,22 +104,17 @@ static void efivarfs_hex_to_guid(const char *str, efi_guid_t *guid)
 static int efivarfs_create(struct inode *dir, struct dentry *dentry,
 			  umode_t mode, bool excl)
 {
-	struct inode *inode;
+	struct inode *inode = NULL;
 	struct efivar_entry *var;
 	int namelen, i = 0, err = 0;
+	bool is_removable = false;
 
 	if (!efivarfs_valid_name(dentry->d_name.name, dentry->d_name.len))
 		return -EINVAL;
 
-	inode = efivarfs_get_inode(dir->i_sb, dir, mode, 0);
-	if (!inode)
-		return -ENOMEM;
-
 	var = kzalloc(sizeof(struct efivar_entry), GFP_KERNEL);
-	if (!var) {
-		err = -ENOMEM;
-		goto out;
-	}
+	if (!var)
+		return -ENOMEM;
 
 	/* length of the variable name itself: remove GUID and separator */
 	namelen = dentry->d_name.len - EFI_VARIABLE_GUID_LEN - 1;
@@ -125,6 +122,16 @@ static int efivarfs_create(struct inode *dir, struct dentry *dentry,
 	efivarfs_hex_to_guid(dentry->d_name.name + namelen + 1,
 			&var->var.VendorGuid);
 
+	if (efivar_variable_is_removable(var->var.VendorGuid,
+					 dentry->d_name.name, namelen))
+		is_removable = true;
+
+	inode = efivarfs_get_inode(dir->i_sb, dir, mode, 0, is_removable);
+	if (!inode) {
+		err = -ENOMEM;
+		goto out;
+	}
+
 	for (i = 0; i < namelen; i++)
 		var->var.VariableName[i] = dentry->d_name.name[i];
 
@@ -138,7 +145,8 @@ static int efivarfs_create(struct inode *dir, struct dentry *dentry,
 out:
 	if (err) {
 		kfree(var);
-		iput(inode);
+		if (inode)
+			iput(inode);
 	}
 	return err;
 }
diff --git a/fs/efivarfs/internal.h b/fs/efivarfs/internal.h
index b5ff16a..b450518 100644
--- a/fs/efivarfs/internal.h
+++ b/fs/efivarfs/internal.h
@@ -15,7 +15,8 @@ extern const struct file_operations efivarfs_file_operations;
 extern const struct inode_operations efivarfs_dir_inode_operations;
 extern bool efivarfs_valid_name(const char *str, int len);
 extern struct inode *efivarfs_get_inode(struct super_block *sb,
-			const struct inode *dir, int mode, dev_t dev);
+			const struct inode *dir, int mode, dev_t dev,
+			bool is_removable);
 
 extern struct list_head efivarfs_list;
 
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index b8a564f..dd029d1 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -118,8 +118,9 @@ static int efivarfs_callback(efi_char16_t *name16, efi_guid_t vendor,
 	struct dentry *dentry, *root = sb->s_root;
 	unsigned long size = 0;
 	char *name;
-	int len, i;
+	int len;
 	int err = -ENOMEM;
+	bool is_removable = false;
 
 	entry = kzalloc(sizeof(*entry), GFP_KERNEL);
 	if (!entry)
@@ -128,15 +129,17 @@ static int efivarfs_callback(efi_char16_t *name16, efi_guid_t vendor,
 	memcpy(entry->var.VariableName, name16, name_size);
 	memcpy(&(entry->var.VendorGuid), &vendor, sizeof(efi_guid_t));
 
-	len = ucs2_strlen(entry->var.VariableName);
+	len = ucs2_utf8size(entry->var.VariableName);
 
 	/* name, plus '-', plus GUID, plus NUL*/
 	name = kmalloc(len + 1 + EFI_VARIABLE_GUID_LEN + 1, GFP_KERNEL);
 	if (!name)
 		goto fail;
 
-	for (i = 0; i < len; i++)
-		name[i] = entry->var.VariableName[i] & 0xFF;
+	ucs2_as_utf8(name, entry->var.VariableName, len);
+
+	if (efivar_variable_is_removable(entry->var.VendorGuid, name, len))
+		is_removable = true;
 
 	name[len] = '-';
 
@@ -144,7 +147,8 @@ static int efivarfs_callback(efi_char16_t *name16, efi_guid_t vendor,
 
 	name[len + EFI_VARIABLE_GUID_LEN+1] = '\0';
 
-	inode = efivarfs_get_inode(sb, d_inode(root), S_IFREG | 0644, 0);
+	inode = efivarfs_get_inode(sb, d_inode(root), S_IFREG | 0644, 0,
+				   is_removable);
 	if (!inode)
 		goto fail_name;
 
@@ -200,7 +204,7 @@ static int efivarfs_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_d_op		= &efivarfs_d_ops;
 	sb->s_time_gran         = 1;
 
-	inode = efivarfs_get_inode(sb, NULL, S_IFDIR | 0755, 0);
+	inode = efivarfs_get_inode(sb, NULL, S_IFDIR | 0755, 0, true);
 	if (!inode)
 		return -ENOMEM;
 	inode->i_op = &efivarfs_dir_inode_operations;
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index 2c88d68..c1400b1 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -80,23 +80,6 @@ static int ext2_dax_pmd_fault(struct vm_area_struct *vma, unsigned long addr,
 	return ret;
 }
 
-static int ext2_dax_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	struct inode *inode = file_inode(vma->vm_file);
-	struct ext2_inode_info *ei = EXT2_I(inode);
-	int ret;
-
-	sb_start_pagefault(inode->i_sb);
-	file_update_time(vma->vm_file);
-	down_read(&ei->dax_sem);
-
-	ret = __dax_mkwrite(vma, vmf, ext2_get_block, NULL);
-
-	up_read(&ei->dax_sem);
-	sb_end_pagefault(inode->i_sb);
-	return ret;
-}
-
 static int ext2_dax_pfn_mkwrite(struct vm_area_struct *vma,
 		struct vm_fault *vmf)
 {
@@ -124,7 +107,7 @@ static int ext2_dax_pfn_mkwrite(struct vm_area_struct *vma,
 static const struct vm_operations_struct ext2_dax_vm_ops = {
 	.fault		= ext2_dax_fault,
 	.pmd_fault	= ext2_dax_pmd_fault,
-	.page_mkwrite	= ext2_dax_mkwrite,
+	.page_mkwrite	= ext2_dax_fault,
 	.pfn_mkwrite	= ext2_dax_pfn_mkwrite,
 };
 
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 338eefd..6bd58e6 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -737,8 +737,10 @@ static int ext2_get_blocks(struct inode *inode,
 		 * so that it's not found by another thread before it's
 		 * initialised
 		 */
-		err = dax_clear_blocks(inode, le32_to_cpu(chain[depth-1].key),
-						1 << inode->i_blkbits);
+		err = dax_clear_sectors(inode->i_sb->s_bdev,
+				le32_to_cpu(chain[depth-1].key) <<
+				(inode->i_blkbits - 9),
+				1 << inode->i_blkbits);
 		if (err) {
 			mutex_unlock(&ei->truncate_mutex);
 			goto cleanup;
@@ -874,6 +876,14 @@ ext2_direct_IO(struct kiocb *iocb, struct iov_iter *iter, loff_t offset)
 static int
 ext2_writepages(struct address_space *mapping, struct writeback_control *wbc)
 {
+#ifdef CONFIG_FS_DAX
+	if (dax_mapping(mapping)) {
+		return dax_writeback_mapping_range(mapping,
+						   mapping->host->i_sb->s_bdev,
+						   wbc);
+	}
+#endif
+
 	return mpage_writepages(mapping, wbc, ext2_get_block);
 }
 
@@ -1296,7 +1306,7 @@ void ext2_set_inode_flags(struct inode *inode)
 		inode->i_flags |= S_NOATIME;
 	if (flags & EXT2_DIRSYNC_FL)
 		inode->i_flags |= S_DIRSYNC;
-	if (test_opt(inode->i_sb, DAX))
+	if (test_opt(inode->i_sb, DAX) && S_ISREG(inode->i_mode))
 		inode->i_flags |= S_DAX;
 }
 
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index ec0668a..fe1f50f 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -191,7 +191,6 @@ static int ext4_init_block_bitmap(struct super_block *sb,
 	/* If checksum is bad mark all blocks used to prevent allocation
 	 * essentially implementing a per-group read-only flag. */
 	if (!ext4_group_desc_csum_verify(sb, block_group, gdp)) {
-		ext4_error(sb, "Checksum bad for group %u", block_group);
 		grp = ext4_get_group_info(sb, block_group);
 		if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp))
 			percpu_counter_sub(&sbi->s_freeclusters_counter,
@@ -442,14 +441,16 @@ ext4_read_block_bitmap_nowait(struct super_block *sb, ext4_group_t block_group)
 	}
 	ext4_lock_group(sb, block_group);
 	if (desc->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
-
 		err = ext4_init_block_bitmap(sb, bh, block_group, desc);
 		set_bitmap_uptodate(bh);
 		set_buffer_uptodate(bh);
 		ext4_unlock_group(sb, block_group);
 		unlock_buffer(bh);
-		if (err)
+		if (err) {
+			ext4_error(sb, "Failed to init block bitmap for group "
+				   "%u: %d", block_group, err);
 			goto out;
+		}
 		goto verify;
 	}
 	ext4_unlock_group(sb, block_group);
diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c
index c802120..38f7562 100644
--- a/fs/ext4/crypto.c
+++ b/fs/ext4/crypto.c
@@ -467,3 +467,59 @@ uint32_t ext4_validate_encryption_key_size(uint32_t mode, uint32_t size)
 		return size;
 	return 0;
 }
+
+/*
+ * Validate dentries for encrypted directories to make sure we aren't
+ * potentially caching stale data after a key has been added or
+ * removed.
+ */
+static int ext4_d_revalidate(struct dentry *dentry, unsigned int flags)
+{
+	struct inode *dir = d_inode(dentry->d_parent);
+	struct ext4_crypt_info *ci = EXT4_I(dir)->i_crypt_info;
+	int dir_has_key, cached_with_key;
+
+	if (!ext4_encrypted_inode(dir))
+		return 0;
+
+	if (ci && ci->ci_keyring_key &&
+	    (ci->ci_keyring_key->flags & ((1 << KEY_FLAG_INVALIDATED) |
+					  (1 << KEY_FLAG_REVOKED) |
+					  (1 << KEY_FLAG_DEAD))))
+		ci = NULL;
+
+	/* this should eventually be an flag in d_flags */
+	cached_with_key = dentry->d_fsdata != NULL;
+	dir_has_key = (ci != NULL);
+
+	/*
+	 * If the dentry was cached without the key, and it is a
+	 * negative dentry, it might be a valid name.  We can't check
+	 * if the key has since been made available due to locking
+	 * reasons, so we fail the validation so ext4_lookup() can do
+	 * this check.
+	 *
+	 * We also fail the validation if the dentry was created with
+	 * the key present, but we no longer have the key, or vice versa.
+	 */
+	if ((!cached_with_key && d_is_negative(dentry)) ||
+	    (!cached_with_key && dir_has_key) ||
+	    (cached_with_key && !dir_has_key)) {
+#if 0				/* Revalidation debug */
+		char buf[80];
+		char *cp = simple_dname(dentry, buf, sizeof(buf));
+
+		if (IS_ERR(cp))
+			cp = (char *) "???";
+		pr_err("revalidate: %s %p %d %d %d\n", cp, dentry->d_fsdata,
+		       cached_with_key, d_is_negative(dentry),
+		       dir_has_key);
+#endif
+		return 0;
+	}
+	return 1;
+}
+
+const struct dentry_operations ext4_encrypted_d_ops = {
+	.d_revalidate = ext4_d_revalidate,
+};
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 1d1bca7..33f5e2a 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -111,6 +111,12 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
 	int dir_has_error = 0;
 	struct ext4_str fname_crypto_str = {.name = NULL, .len = 0};
 
+	if (ext4_encrypted_inode(inode)) {
+		err = ext4_get_encryption_info(inode);
+		if (err && err != -ENOKEY)
+			return err;
+	}
+
 	if (is_dx_dir(inode)) {
 		err = ext4_dx_readdir(file, ctx);
 		if (err != ERR_BAD_DX_DIR) {
@@ -157,8 +163,11 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
 					index, 1);
 			file->f_ra.prev_pos = (loff_t)index << PAGE_CACHE_SHIFT;
 			bh = ext4_bread(NULL, inode, map.m_lblk, 0);
-			if (IS_ERR(bh))
-				return PTR_ERR(bh);
+			if (IS_ERR(bh)) {
+				err = PTR_ERR(bh);
+				bh = NULL;
+				goto errout;
+			}
 		}
 
 		if (!bh) {
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 0662b28..157b458 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2302,6 +2302,7 @@ struct page *ext4_encrypt(struct inode *inode,
 int ext4_decrypt(struct page *page);
 int ext4_encrypted_zeroout(struct inode *inode, ext4_lblk_t lblk,
 			   ext4_fsblk_t pblk, ext4_lblk_t len);
+extern const struct dentry_operations ext4_encrypted_d_ops;
 
 #ifdef CONFIG_EXT4_FS_ENCRYPTION
 int ext4_init_crypto(void);
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 0ffabaf..3753ceb 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3928,7 +3928,7 @@ static int
 convert_initialized_extent(handle_t *handle, struct inode *inode,
 			   struct ext4_map_blocks *map,
 			   struct ext4_ext_path **ppath, int flags,
-			   unsigned int allocated, ext4_fsblk_t newblock)
+			   unsigned int allocated)
 {
 	struct ext4_ext_path *path = *ppath;
 	struct ext4_extent *ex;
@@ -4347,7 +4347,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
 			    (flags & EXT4_GET_BLOCKS_CONVERT_UNWRITTEN)) {
 				allocated = convert_initialized_extent(
 						handle, inode, map, &path,
-						flags, allocated, newblock);
+						flags, allocated);
 				goto out2;
 			} else if (!ext4_ext_is_unwritten(ex))
 				goto out;
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 1126436..4cd318f 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -262,23 +262,8 @@ static int ext4_dax_pmd_fault(struct vm_area_struct *vma, unsigned long addr,
 	return result;
 }
 
-static int ext4_dax_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	int err;
-	struct inode *inode = file_inode(vma->vm_file);
-
-	sb_start_pagefault(inode->i_sb);
-	file_update_time(vma->vm_file);
-	down_read(&EXT4_I(inode)->i_mmap_sem);
-	err = __dax_mkwrite(vma, vmf, ext4_dax_mmap_get_block, NULL);
-	up_read(&EXT4_I(inode)->i_mmap_sem);
-	sb_end_pagefault(inode->i_sb);
-
-	return err;
-}
-
 /*
- * Handle write fault for VM_MIXEDMAP mappings. Similarly to ext4_dax_mkwrite()
+ * Handle write fault for VM_MIXEDMAP mappings. Similarly to ext4_dax_fault()
  * handler we check for races agaist truncate. Note that since we cycle through
  * i_mmap_sem, we are sure that also any hole punching that began before we
  * were called is finished by now and so if it included part of the file we
@@ -311,7 +296,7 @@ static int ext4_dax_pfn_mkwrite(struct vm_area_struct *vma,
 static const struct vm_operations_struct ext4_dax_vm_ops = {
 	.fault		= ext4_dax_fault,
 	.pmd_fault	= ext4_dax_pmd_fault,
-	.page_mkwrite	= ext4_dax_mkwrite,
+	.page_mkwrite	= ext4_dax_fault,
 	.pfn_mkwrite	= ext4_dax_pfn_mkwrite,
 };
 #else
@@ -350,6 +335,7 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
 	struct super_block *sb = inode->i_sb;
 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
 	struct vfsmount *mnt = filp->f_path.mnt;
+	struct inode *dir = filp->f_path.dentry->d_parent->d_inode;
 	struct path path;
 	char buf[64], *cp;
 	int ret;
@@ -393,6 +379,14 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
 		if (ext4_encryption_info(inode) == NULL)
 			return -ENOKEY;
 	}
+	if (ext4_encrypted_inode(dir) &&
+	    !ext4_is_child_context_consistent_with_parent(dir, inode)) {
+		ext4_warning(inode->i_sb,
+			     "Inconsistent encryption contexts: %lu/%lu\n",
+			     (unsigned long) dir->i_ino,
+			     (unsigned long) inode->i_ino);
+		return -EPERM;
+	}
 	/*
 	 * Set up the jbd2_inode if we are opening the inode for
 	 * writing and the journal is present
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 3fcfd50..acc0ad5 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -76,7 +76,6 @@ static int ext4_init_inode_bitmap(struct super_block *sb,
 	/* If checksum is bad mark all blocks and inodes use to prevent
 	 * allocation, essentially implementing a per-group read-only flag. */
 	if (!ext4_group_desc_csum_verify(sb, block_group, gdp)) {
-		ext4_error(sb, "Checksum bad for group %u", block_group);
 		grp = ext4_get_group_info(sb, block_group);
 		if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp))
 			percpu_counter_sub(&sbi->s_freeclusters_counter,
@@ -191,8 +190,11 @@ ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group)
 		set_buffer_verified(bh);
 		ext4_unlock_group(sb, block_group);
 		unlock_buffer(bh);
-		if (err)
+		if (err) {
+			ext4_error(sb, "Failed to init inode bitmap for group "
+				   "%u: %d", block_group, err);
 			goto out;
+		}
 		return bh;
 	}
 	ext4_unlock_group(sb, block_group);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 83bc8bf..aee960b 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -686,6 +686,34 @@ out_sem:
 	return retval;
 }
 
+/*
+ * Update EXT4_MAP_FLAGS in bh->b_state. For buffer heads attached to pages
+ * we have to be careful as someone else may be manipulating b_state as well.
+ */
+static void ext4_update_bh_state(struct buffer_head *bh, unsigned long flags)
+{
+	unsigned long old_state;
+	unsigned long new_state;
+
+	flags &= EXT4_MAP_FLAGS;
+
+	/* Dummy buffer_head? Set non-atomically. */
+	if (!bh->b_page) {
+		bh->b_state = (bh->b_state & ~EXT4_MAP_FLAGS) | flags;
+		return;
+	}
+	/*
+	 * Someone else may be modifying b_state. Be careful! This is ugly but
+	 * once we get rid of using bh as a container for mapping information
+	 * to pass to / from get_block functions, this can go away.
+	 */
+	do {
+		old_state = READ_ONCE(bh->b_state);
+		new_state = (old_state & ~EXT4_MAP_FLAGS) | flags;
+	} while (unlikely(
+		 cmpxchg(&bh->b_state, old_state, new_state) != old_state));
+}
+
 /* Maximum number of blocks we map for direct IO at once. */
 #define DIO_MAX_BLOCKS 4096
 
@@ -722,7 +750,7 @@ static int _ext4_get_block(struct inode *inode, sector_t iblock,
 		ext4_io_end_t *io_end = ext4_inode_aio(inode);
 
 		map_bh(bh, inode->i_sb, map.m_pblk);
-		bh->b_state = (bh->b_state & ~EXT4_MAP_FLAGS) | map.m_flags;
+		ext4_update_bh_state(bh, map.m_flags);
 		if (io_end && io_end->flag & EXT4_IO_END_UNWRITTEN)
 			set_buffer_defer_completion(bh);
 		bh->b_size = inode->i_sb->s_blocksize * map.m_len;
@@ -1685,7 +1713,7 @@ int ext4_da_get_block_prep(struct inode *inode, sector_t iblock,
 		return ret;
 
 	map_bh(bh, inode->i_sb, map.m_pblk);
-	bh->b_state = (bh->b_state & ~EXT4_MAP_FLAGS) | map.m_flags;
+	ext4_update_bh_state(bh, map.m_flags);
 
 	if (buffer_unwritten(bh)) {
 		/* A delayed write to unwritten bh should be marked
@@ -2450,6 +2478,10 @@ static int ext4_writepages(struct address_space *mapping,
 
 	trace_ext4_writepages(inode, wbc);
 
+	if (dax_mapping(mapping))
+		return dax_writeback_mapping_range(mapping, inode->i_sb->s_bdev,
+						   wbc);
+
 	/*
 	 * No pages to write? This is mainly a kludge to avoid starting
 	 * a transaction for special inodes like journal inode on last iput()
@@ -3253,29 +3285,29 @@ static ssize_t ext4_ext_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
 	 * case, we allocate an io_end structure to hook to the iocb.
 	 */
 	iocb->private = NULL;
-	ext4_inode_aio_set(inode, NULL);
-	if (!is_sync_kiocb(iocb)) {
-		io_end = ext4_init_io_end(inode, GFP_NOFS);
-		if (!io_end) {
-			ret = -ENOMEM;
-			goto retake_lock;
-		}
-		/*
-		 * Grab reference for DIO. Will be dropped in ext4_end_io_dio()
-		 */
-		iocb->private = ext4_get_io_end(io_end);
-		/*
-		 * we save the io structure for current async direct
-		 * IO, so that later ext4_map_blocks() could flag the
-		 * io structure whether there is a unwritten extents
-		 * needs to be converted when IO is completed.
-		 */
-		ext4_inode_aio_set(inode, io_end);
-	}
-
 	if (overwrite) {
 		get_block_func = ext4_get_block_overwrite;
 	} else {
+		ext4_inode_aio_set(inode, NULL);
+		if (!is_sync_kiocb(iocb)) {
+			io_end = ext4_init_io_end(inode, GFP_NOFS);
+			if (!io_end) {
+				ret = -ENOMEM;
+				goto retake_lock;
+			}
+			/*
+			 * Grab reference for DIO. Will be dropped in
+			 * ext4_end_io_dio()
+			 */
+			iocb->private = ext4_get_io_end(io_end);
+			/*
+			 * we save the io structure for current async direct
+			 * IO, so that later ext4_map_blocks() could flag the
+			 * io structure whether there is a unwritten extents
+			 * needs to be converted when IO is completed.
+			 */
+			ext4_inode_aio_set(inode, io_end);
+		}
 		get_block_func = ext4_get_block_write;
 		dio_flags = DIO_LOCKING;
 	}
@@ -4127,7 +4159,7 @@ void ext4_set_inode_flags(struct inode *inode)
 		new_fl |= S_NOATIME;
 	if (flags & EXT4_DIRSYNC_FL)
 		new_fl |= S_DIRSYNC;
-	if (test_opt(inode->i_sb, DAX))
+	if (test_opt(inode->i_sb, DAX) && S_ISREG(inode->i_mode))
 		new_fl |= S_DAX;
 	inode_set_flags(inode, new_fl,
 			S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|S_DAX);
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 0f6c369..eae5917 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -208,7 +208,7 @@ static int ext4_ioctl_setflags(struct inode *inode,
 {
 	struct ext4_inode_info *ei = EXT4_I(inode);
 	handle_t *handle = NULL;
-	int err = EPERM, migrate = 0;
+	int err = -EPERM, migrate = 0;
 	struct ext4_iloc iloc;
 	unsigned int oldflags, mask, i;
 	unsigned int jflag;
@@ -583,6 +583,11 @@ group_extend_out:
 				 "Online defrag not supported with bigalloc");
 			err = -EOPNOTSUPP;
 			goto mext_out;
+		} else if (IS_DAX(inode)) {
+			ext4_msg(sb, KERN_ERR,
+				 "Online defrag not supported with DAX");
+			err = -EOPNOTSUPP;
+			goto mext_out;
 		}
 
 		err = mnt_want_write_file(filp);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 61eaf74..4424b7b 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2285,7 +2285,7 @@ static int ext4_mb_seq_groups_show(struct seq_file *seq, void *v)
 	if (group == 0)
 		seq_puts(seq, "#group: free  frags first ["
 			      " 2^0   2^1   2^2   2^3   2^4   2^5   2^6  "
-			      " 2^7   2^8   2^9   2^10  2^11  2^12  2^13  ]");
+			      " 2^7   2^8   2^9   2^10  2^11  2^12  2^13  ]\n");
 
 	i = (sb->s_blocksize_bits + 2) * sizeof(sg.info.bb_counters[0]) +
 		sizeof(struct ext4_group_info);
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index fb6f117..e032a04 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -265,11 +265,12 @@ move_extent_per_page(struct file *o_filp, struct inode *donor_inode,
 	ext4_lblk_t orig_blk_offset, donor_blk_offset;
 	unsigned long blocksize = orig_inode->i_sb->s_blocksize;
 	unsigned int tmp_data_size, data_size, replaced_size;
-	int err2, jblocks, retries = 0;
+	int i, err2, jblocks, retries = 0;
 	int replaced_count = 0;
 	int from = data_offset_in_page << orig_inode->i_blkbits;
 	int blocks_per_page = PAGE_CACHE_SIZE >> orig_inode->i_blkbits;
 	struct super_block *sb = orig_inode->i_sb;
+	struct buffer_head *bh = NULL;
 
 	/*
 	 * It needs twice the amount of ordinary journal buffers because
@@ -380,8 +381,16 @@ data_copy:
 	}
 	/* Perform all necessary steps similar write_begin()/write_end()
 	 * but keeping in mind that i_size will not change */
-	*err = __block_write_begin(pagep[0], from, replaced_size,
-				   ext4_get_block);
+	if (!page_has_buffers(pagep[0]))
+		create_empty_buffers(pagep[0], 1 << orig_inode->i_blkbits, 0);
+	bh = page_buffers(pagep[0]);
+	for (i = 0; i < data_offset_in_page; i++)
+		bh = bh->b_this_page;
+	for (i = 0; i < block_len_in_page; i++) {
+		*err = ext4_get_block(orig_inode, orig_blk_offset + i, bh, 0);
+		if (*err < 0)
+			break;
+	}
 	if (!*err)
 		*err = block_commit_write(pagep[0], from, from + replaced_size);
 
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 06574dd..48e4b89 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1558,6 +1558,24 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi
 	struct ext4_dir_entry_2 *de;
 	struct buffer_head *bh;
 
+       if (ext4_encrypted_inode(dir)) {
+               int res = ext4_get_encryption_info(dir);
+
+		/*
+		 * This should be a properly defined flag for
+		 * dentry->d_flags when we uplift this to the VFS.
+		 * d_fsdata is set to (void *) 1 if if the dentry is
+		 * created while the directory was encrypted and we
+		 * don't have access to the key.
+		 */
+	       dentry->d_fsdata = NULL;
+	       if (ext4_encryption_info(dir))
+		       dentry->d_fsdata = (void *) 1;
+	       d_set_d_op(dentry, &ext4_encrypted_d_ops);
+	       if (res && res != -ENOKEY)
+		       return ERR_PTR(res);
+       }
+
 	if (dentry->d_name.len > EXT4_NAME_LEN)
 		return ERR_PTR(-ENAMETOOLONG);
 
@@ -1585,11 +1603,15 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi
 			return ERR_PTR(-EFSCORRUPTED);
 		}
 		if (!IS_ERR(inode) && ext4_encrypted_inode(dir) &&
-		    (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
-		     S_ISLNK(inode->i_mode)) &&
+		    (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
 		    !ext4_is_child_context_consistent_with_parent(dir,
 								  inode)) {
+			int nokey = ext4_encrypted_inode(inode) &&
+				!ext4_encryption_info(inode);
+
 			iput(inode);
+			if (nokey)
+				return ERR_PTR(-ENOKEY);
 			ext4_warning(inode->i_sb,
 				     "Inconsistent encryption contexts: %lu/%lu\n",
 				     (unsigned long) dir->i_ino,
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index ad62d7a..34038e3 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -198,7 +198,7 @@ static struct ext4_new_flex_group_data *alloc_flex_gd(unsigned long flexbg_size)
 	if (flex_gd == NULL)
 		goto out3;
 
-	if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_flex_group_data))
+	if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_group_data))
 		goto out2;
 	flex_gd->count = flexbg_size;
 
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 6915c95..1f76d89 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -317,6 +317,7 @@ static void inode_switch_wbs_work_fn(struct work_struct *work)
 	struct inode_switch_wbs_context *isw =
 		container_of(work, struct inode_switch_wbs_context, work);
 	struct inode *inode = isw->inode;
+	struct super_block *sb = inode->i_sb;
 	struct address_space *mapping = inode->i_mapping;
 	struct bdi_writeback *old_wb = inode->i_wb;
 	struct bdi_writeback *new_wb = isw->new_wb;
@@ -423,6 +424,7 @@ skip_switch:
 	wb_put(new_wb);
 
 	iput(inode);
+	deactivate_super(sb);
 	kfree(isw);
 }
 
@@ -469,11 +471,14 @@ static void inode_switch_wbs(struct inode *inode, int new_wb_id)
 
 	/* while holding I_WB_SWITCH, no one else can update the association */
 	spin_lock(&inode->i_lock);
+
 	if (inode->i_state & (I_WB_SWITCH | I_FREEING) ||
-	    inode_to_wb(inode) == isw->new_wb) {
-		spin_unlock(&inode->i_lock);
-		goto out_free;
-	}
+	    inode_to_wb(inode) == isw->new_wb)
+		goto out_unlock;
+
+	if (!atomic_inc_not_zero(&inode->i_sb->s_active))
+		goto out_unlock;
+
 	inode->i_state |= I_WB_SWITCH;
 	spin_unlock(&inode->i_lock);
 
@@ -489,6 +494,8 @@ static void inode_switch_wbs(struct inode *inode, int new_wb_id)
 	call_rcu(&isw->rcu_head, inode_switch_wbs_rcu_fn);
 	return;
 
+out_unlock:
+	spin_unlock(&inode->i_lock);
 out_free:
 	if (isw->new_wb)
 		wb_put(isw->new_wb);
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index 506765a..bb8d67e 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -376,12 +376,11 @@ static int hpfs_unlink(struct inode *dir, struct dentry *dentry)
 	struct inode *inode = d_inode(dentry);
 	dnode_secno dno;
 	int r;
-	int rep = 0;
 	int err;
 
 	hpfs_lock(dir->i_sb);
 	hpfs_adjust_length(name, &len);
-again:
+
 	err = -ENOENT;
 	de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, &dno, &qbh);
 	if (!de)
@@ -401,33 +400,9 @@ again:
 		hpfs_error(dir->i_sb, "there was error when removing dirent");
 		err = -EFSERROR;
 		break;
-	case 2:		/* no space for deleting, try to truncate file */
-
+	case 2:		/* no space for deleting */
 		err = -ENOSPC;
-		if (rep++)
-			break;
-
-		dentry_unhash(dentry);
-		if (!d_unhashed(dentry)) {
-			hpfs_unlock(dir->i_sb);
-			return -ENOSPC;
-		}
-		if (generic_permission(inode, MAY_WRITE) ||
-		    !S_ISREG(inode->i_mode) ||
-		    get_write_access(inode)) {
-			d_rehash(dentry);
-		} else {
-			struct iattr newattrs;
-			/*pr_info("truncating file before delete.\n");*/
-			newattrs.ia_size = 0;
-			newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
-			err = notify_change(dentry, &newattrs, NULL);
-			put_write_access(inode);
-			if (!err)
-				goto again;
-		}
-		hpfs_unlock(dir->i_sb);
-		return -ENOSPC;
+		break;
 	default:
 		drop_nlink(inode);
 		err = 0;
diff --git a/fs/inode.c b/fs/inode.c
index 9f62db3..69b8b52 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -154,6 +154,12 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
 	inode->i_rdev = 0;
 	inode->dirtied_when = 0;
 
+#ifdef CONFIG_CGROUP_WRITEBACK
+	inode->i_wb_frn_winner = 0;
+	inode->i_wb_frn_avg_time = 0;
+	inode->i_wb_frn_history = 0;
+#endif
+
 	if (security_inode_alloc(inode))
 		goto out;
 	spin_lock_init(&inode->i_lock);
diff --git a/fs/namei.c b/fs/namei.c
index f624d13..9c590e0 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1712,6 +1712,11 @@ static inline int should_follow_link(struct nameidata *nd, struct path *link,
 		return 0;
 	if (!follow)
 		return 0;
+	/* make sure that d_is_symlink above matches inode */
+	if (nd->flags & LOOKUP_RCU) {
+		if (read_seqcount_retry(&link->dentry->d_seq, seq))
+			return -ECHILD;
+	}
 	return pick_link(nd, link, inode, seq);
 }
 
@@ -1743,11 +1748,11 @@ static int walk_component(struct nameidata *nd, int flags)
 		if (err < 0)
 			return err;
 
-		inode = d_backing_inode(path.dentry);
 		seq = 0;	/* we are already out of RCU mode */
 		err = -ENOENT;
 		if (d_is_negative(path.dentry))
 			goto out_path_put;
+		inode = d_backing_inode(path.dentry);
 	}
 
 	if (flags & WALK_PUT)
@@ -3192,12 +3197,12 @@ retry_lookup:
 		return error;
 
 	BUG_ON(nd->flags & LOOKUP_RCU);
-	inode = d_backing_inode(path.dentry);
 	seq = 0;	/* out of RCU mode, so the value doesn't matter */
 	if (unlikely(d_is_negative(path.dentry))) {
 		path_to_nameidata(&path, nd);
 		return -ENOENT;
 	}
+	inode = d_backing_inode(path.dentry);
 finish_lookup:
 	if (nd->depth)
 		put_link(nd);
@@ -3206,11 +3211,6 @@ finish_lookup:
 	if (unlikely(error))
 		return error;
 
-	if (unlikely(d_is_symlink(path.dentry)) && !(open_flag & O_PATH)) {
-		path_to_nameidata(&path, nd);
-		return -ELOOP;
-	}
-
 	if ((nd->flags & LOOKUP_RCU) || nd->path.mnt != path.mnt) {
 		path_to_nameidata(&path, nd);
 	} else {
@@ -3229,6 +3229,10 @@ finish_open:
 		return error;
 	}
 	audit_inode(nd->name, nd->path.dentry, 0);
+	if (unlikely(d_is_symlink(nd->path.dentry)) && !(open_flag & O_PATH)) {
+		error = -ELOOP;
+		goto out;
+	}
 	error = -EISDIR;
 	if ((open_flag & O_CREAT) && d_is_dir(nd->path.dentry))
 		goto out;
@@ -3273,6 +3277,10 @@ opened:
 			goto exit_fput;
 	}
 out:
+	if (unlikely(error > 0)) {
+		WARN_ON(1);
+		error = -EINVAL;
+	}
 	if (got_write)
 		mnt_drop_write(nd->path.mnt);
 	path_put(&save_parent);
diff --git a/fs/nfs/blocklayout/extent_tree.c b/fs/nfs/blocklayout/extent_tree.c
index c59a59c..35ab51c 100644
--- a/fs/nfs/blocklayout/extent_tree.c
+++ b/fs/nfs/blocklayout/extent_tree.c
@@ -476,6 +476,7 @@ static void ext_tree_free_commitdata(struct nfs4_layoutcommit_args *arg,
 
 		for (i = 0; i < nr_pages; i++)
 			put_page(arg->layoutupdate_pages[i]);
+		vfree(arg->start_p);
 		kfree(arg->layoutupdate_pages);
 	} else {
 		put_page(arg->layoutupdate_page);
@@ -559,10 +560,15 @@ retry:
 
 	if (unlikely(arg->layoutupdate_pages != &arg->layoutupdate_page)) {
 		void *p = start_p, *end = p + arg->layoutupdate_len;
+		struct page *page = NULL;
 		int i = 0;
 
-		for ( ; p < end; p += PAGE_SIZE)
-			arg->layoutupdate_pages[i++] = vmalloc_to_page(p);
+		arg->start_p = start_p;
+		for ( ; p < end; p += PAGE_SIZE) {
+			page = vmalloc_to_page(p);
+			arg->layoutupdate_pages[i++] = page;
+			get_page(page);
+		}
 	}
 
 	dprintk("%s found %zu ranges\n", __func__, count);
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index bd25dc7..dff8346 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -16,29 +16,8 @@
 
 #define NFSDBG_FACILITY NFSDBG_PROC
 
-static int nfs42_set_rw_stateid(nfs4_stateid *dst, struct file *file,
-				fmode_t fmode)
-{
-	struct nfs_open_context *open;
-	struct nfs_lock_context *lock;
-	int ret;
-
-	open = get_nfs_open_context(nfs_file_open_context(file));
-	lock = nfs_get_lock_context(open);
-	if (IS_ERR(lock)) {
-		put_nfs_open_context(open);
-		return PTR_ERR(lock);
-	}
-
-	ret = nfs4_set_rw_stateid(dst, open, lock, fmode);
-
-	nfs_put_lock_context(lock);
-	put_nfs_open_context(open);
-	return ret;
-}
-
 static int _nfs42_proc_fallocate(struct rpc_message *msg, struct file *filep,
-				 loff_t offset, loff_t len)
+		struct nfs_lock_context *lock, loff_t offset, loff_t len)
 {
 	struct inode *inode = file_inode(filep);
 	struct nfs_server *server = NFS_SERVER(inode);
@@ -56,7 +35,8 @@ static int _nfs42_proc_fallocate(struct rpc_message *msg, struct file *filep,
 	msg->rpc_argp = &args;
 	msg->rpc_resp = &res;
 
-	status = nfs42_set_rw_stateid(&args.falloc_stateid, filep, FMODE_WRITE);
+	status = nfs4_set_rw_stateid(&args.falloc_stateid, lock->open_context,
+			lock, FMODE_WRITE);
 	if (status)
 		return status;
 
@@ -78,15 +58,26 @@ static int nfs42_proc_fallocate(struct rpc_message *msg, struct file *filep,
 {
 	struct nfs_server *server = NFS_SERVER(file_inode(filep));
 	struct nfs4_exception exception = { };
+	struct nfs_lock_context *lock;
 	int err;
 
+	lock = nfs_get_lock_context(nfs_file_open_context(filep));
+	if (IS_ERR(lock))
+		return PTR_ERR(lock);
+
+	exception.inode = file_inode(filep);
+	exception.state = lock->open_context->state;
+
 	do {
-		err = _nfs42_proc_fallocate(msg, filep, offset, len);
-		if (err == -ENOTSUPP)
-			return -EOPNOTSUPP;
+		err = _nfs42_proc_fallocate(msg, filep, lock, offset, len);
+		if (err == -ENOTSUPP) {
+			err = -EOPNOTSUPP;
+			break;
+		}
 		err = nfs4_handle_exception(server, err, &exception);
 	} while (exception.retry);
 
+	nfs_put_lock_context(lock);
 	return err;
 }
 
@@ -135,7 +126,8 @@ int nfs42_proc_deallocate(struct file *filep, loff_t offset, loff_t len)
 	return err;
 }
 
-static loff_t _nfs42_proc_llseek(struct file *filep, loff_t offset, int whence)
+static loff_t _nfs42_proc_llseek(struct file *filep,
+		struct nfs_lock_context *lock, loff_t offset, int whence)
 {
 	struct inode *inode = file_inode(filep);
 	struct nfs42_seek_args args = {
@@ -156,7 +148,8 @@ static loff_t _nfs42_proc_llseek(struct file *filep, loff_t offset, int whence)
 	if (!nfs_server_capable(inode, NFS_CAP_SEEK))
 		return -ENOTSUPP;
 
-	status = nfs42_set_rw_stateid(&args.sa_stateid, filep, FMODE_READ);
+	status = nfs4_set_rw_stateid(&args.sa_stateid, lock->open_context,
+			lock, FMODE_READ);
 	if (status)
 		return status;
 
@@ -175,17 +168,28 @@ loff_t nfs42_proc_llseek(struct file *filep, loff_t offset, int whence)
 {
 	struct nfs_server *server = NFS_SERVER(file_inode(filep));
 	struct nfs4_exception exception = { };
+	struct nfs_lock_context *lock;
 	loff_t err;
 
+	lock = nfs_get_lock_context(nfs_file_open_context(filep));
+	if (IS_ERR(lock))
+		return PTR_ERR(lock);
+
+	exception.inode = file_inode(filep);
+	exception.state = lock->open_context->state;
+
 	do {
-		err = _nfs42_proc_llseek(filep, offset, whence);
+		err = _nfs42_proc_llseek(filep, lock, offset, whence);
 		if (err >= 0)
 			break;
-		if (err == -ENOTSUPP)
-			return -EOPNOTSUPP;
+		if (err == -ENOTSUPP) {
+			err = -EOPNOTSUPP;
+			break;
+		}
 		err = nfs4_handle_exception(server, err, &exception);
 	} while (exception.retry);
 
+	nfs_put_lock_context(lock);
 	return err;
 }
 
@@ -298,8 +302,9 @@ int nfs42_proc_layoutstats_generic(struct nfs_server *server,
 }
 
 static int _nfs42_proc_clone(struct rpc_message *msg, struct file *src_f,
-			     struct file *dst_f, loff_t src_offset,
-			     loff_t dst_offset, loff_t count)
+		struct file *dst_f, struct nfs_lock_context *src_lock,
+		struct nfs_lock_context *dst_lock, loff_t src_offset,
+		loff_t dst_offset, loff_t count)
 {
 	struct inode *src_inode = file_inode(src_f);
 	struct inode *dst_inode = file_inode(dst_f);
@@ -320,11 +325,13 @@ static int _nfs42_proc_clone(struct rpc_message *msg, struct file *src_f,
 	msg->rpc_argp = &args;
 	msg->rpc_resp = &res;
 
-	status = nfs42_set_rw_stateid(&args.src_stateid, src_f, FMODE_READ);
+	status = nfs4_set_rw_stateid(&args.src_stateid, src_lock->open_context,
+			src_lock, FMODE_READ);
 	if (status)
 		return status;
 
-	status = nfs42_set_rw_stateid(&args.dst_stateid, dst_f, FMODE_WRITE);
+	status = nfs4_set_rw_stateid(&args.dst_stateid, dst_lock->open_context,
+			dst_lock, FMODE_WRITE);
 	if (status)
 		return status;
 
@@ -349,22 +356,48 @@ int nfs42_proc_clone(struct file *src_f, struct file *dst_f,
 	};
 	struct inode *inode = file_inode(src_f);
 	struct nfs_server *server = NFS_SERVER(file_inode(src_f));
-	struct nfs4_exception exception = { };
-	int err;
+	struct nfs_lock_context *src_lock;
+	struct nfs_lock_context *dst_lock;
+	struct nfs4_exception src_exception = { };
+	struct nfs4_exception dst_exception = { };
+	int err, err2;
 
 	if (!nfs_server_capable(inode, NFS_CAP_CLONE))
 		return -EOPNOTSUPP;
 
+	src_lock = nfs_get_lock_context(nfs_file_open_context(src_f));
+	if (IS_ERR(src_lock))
+		return PTR_ERR(src_lock);
+
+	src_exception.inode = file_inode(src_f);
+	src_exception.state = src_lock->open_context->state;
+
+	dst_lock = nfs_get_lock_context(nfs_file_open_context(dst_f));
+	if (IS_ERR(dst_lock)) {
+		err = PTR_ERR(dst_lock);
+		goto out_put_src_lock;
+	}
+
+	dst_exception.inode = file_inode(dst_f);
+	dst_exception.state = dst_lock->open_context->state;
+
 	do {
-		err = _nfs42_proc_clone(&msg, src_f, dst_f, src_offset,
-					dst_offset, count);
+		err = _nfs42_proc_clone(&msg, src_f, dst_f, src_lock, dst_lock,
+					src_offset, dst_offset, count);
 		if (err == -ENOTSUPP || err == -EOPNOTSUPP) {
 			NFS_SERVER(inode)->caps &= ~NFS_CAP_CLONE;
-			return -EOPNOTSUPP;
+			err = -EOPNOTSUPP;
+			break;
 		}
-		err = nfs4_handle_exception(server, err, &exception);
-	} while (exception.retry);
 
-	return err;
+		err2 = nfs4_handle_exception(server, err, &src_exception);
+		err = nfs4_handle_exception(server, err, &dst_exception);
+		if (!err)
+			err = err2;
+	} while (src_exception.retry || dst_exception.retry);
 
+	nfs_put_lock_context(dst_lock);
+out_put_src_lock:
+	nfs_put_lock_context(src_lock);
+	return err;
 }
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 4bfc33a..1488159 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2466,9 +2466,9 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
 		dentry = d_add_unique(dentry, igrab(state->inode));
 		if (dentry == NULL) {
 			dentry = opendata->dentry;
-		} else if (dentry != ctx->dentry) {
+		} else {
 			dput(ctx->dentry);
-			ctx->dentry = dget(dentry);
+			ctx->dentry = dentry;
 		}
 		nfs_set_verifier(dentry,
 				nfs_save_change_attribute(d_inode(opendata->dir)));
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 482b6e9..2fa483e 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -252,6 +252,27 @@ pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo)
 	}
 }
 
+/*
+ * Mark a pnfs_layout_hdr and all associated layout segments as invalid
+ *
+ * In order to continue using the pnfs_layout_hdr, a full recovery
+ * is required.
+ * Note that caller must hold inode->i_lock.
+ */
+static int
+pnfs_mark_layout_stateid_invalid(struct pnfs_layout_hdr *lo,
+		struct list_head *lseg_list)
+{
+	struct pnfs_layout_range range = {
+		.iomode = IOMODE_ANY,
+		.offset = 0,
+		.length = NFS4_MAX_UINT64,
+	};
+
+	set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
+	return pnfs_mark_matching_lsegs_invalid(lo, lseg_list, &range);
+}
+
 static int
 pnfs_iomode_to_fail_bit(u32 iomode)
 {
@@ -554,9 +575,8 @@ pnfs_destroy_layout(struct nfs_inode *nfsi)
 	spin_lock(&nfsi->vfs_inode.i_lock);
 	lo = nfsi->layout;
 	if (lo) {
-		lo->plh_block_lgets++; /* permanently block new LAYOUTGETs */
-		pnfs_mark_matching_lsegs_invalid(lo, &tmp_list, NULL);
 		pnfs_get_layout_hdr(lo);
+		pnfs_mark_layout_stateid_invalid(lo, &tmp_list);
 		pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RO_FAILED);
 		pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RW_FAILED);
 		spin_unlock(&nfsi->vfs_inode.i_lock);
@@ -617,11 +637,6 @@ pnfs_layout_free_bulk_destroy_list(struct list_head *layout_list,
 {
 	struct pnfs_layout_hdr *lo;
 	struct inode *inode;
-	struct pnfs_layout_range range = {
-		.iomode = IOMODE_ANY,
-		.offset = 0,
-		.length = NFS4_MAX_UINT64,
-	};
 	LIST_HEAD(lseg_list);
 	int ret = 0;
 
@@ -636,11 +651,11 @@ pnfs_layout_free_bulk_destroy_list(struct list_head *layout_list,
 
 		spin_lock(&inode->i_lock);
 		list_del_init(&lo->plh_bulk_destroy);
-		lo->plh_block_lgets++; /* permanently block new LAYOUTGETs */
-		if (is_bulk_recall)
-			set_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags);
-		if (pnfs_mark_matching_lsegs_invalid(lo, &lseg_list, &range))
+		if (pnfs_mark_layout_stateid_invalid(lo, &lseg_list)) {
+			if (is_bulk_recall)
+				set_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags);
 			ret = -EAGAIN;
+		}
 		spin_unlock(&inode->i_lock);
 		pnfs_free_lseg_list(&lseg_list);
 		/* Free all lsegs that are attached to commit buckets */
@@ -1738,8 +1753,19 @@ pnfs_set_plh_return_iomode(struct pnfs_layout_hdr *lo, enum pnfs_iomode iomode)
 	if (lo->plh_return_iomode != 0)
 		iomode = IOMODE_ANY;
 	lo->plh_return_iomode = iomode;
+	set_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags);
 }
 
+/**
+ * pnfs_mark_matching_lsegs_return - Free or return matching layout segments
+ * @lo: pointer to layout header
+ * @tmp_list: list header to be used with pnfs_free_lseg_list()
+ * @return_range: describe layout segment ranges to be returned
+ *
+ * This function is mainly intended for use by layoutrecall. It attempts
+ * to free the layout segment immediately, or else to mark it for return
+ * as soon as its reference count drops to zero.
+ */
 int
 pnfs_mark_matching_lsegs_return(struct pnfs_layout_hdr *lo,
 				struct list_head *tmp_list,
@@ -1762,12 +1788,11 @@ pnfs_mark_matching_lsegs_return(struct pnfs_layout_hdr *lo,
 				lseg, lseg->pls_range.iomode,
 				lseg->pls_range.offset,
 				lseg->pls_range.length);
+			if (mark_lseg_invalid(lseg, tmp_list))
+				continue;
+			remaining++;
 			set_bit(NFS_LSEG_LAYOUTRETURN, &lseg->pls_flags);
 			pnfs_set_plh_return_iomode(lo, return_range->iomode);
-			if (!mark_lseg_invalid(lseg, tmp_list))
-				remaining++;
-			set_bit(NFS_LAYOUT_RETURN_REQUESTED,
-					&lo->plh_flags);
 		}
 	return remaining;
 }
diff --git a/fs/notify/mark.c b/fs/notify/mark.c
index cfcbf11..7115c5d 100644
--- a/fs/notify/mark.c
+++ b/fs/notify/mark.c
@@ -91,7 +91,14 @@
 #include <linux/fsnotify_backend.h>
 #include "fsnotify.h"
 
+#define FSNOTIFY_REAPER_DELAY	(1)	/* 1 jiffy */
+
 struct srcu_struct fsnotify_mark_srcu;
+static DEFINE_SPINLOCK(destroy_lock);
+static LIST_HEAD(destroy_list);
+
+static void fsnotify_mark_destroy(struct work_struct *work);
+static DECLARE_DELAYED_WORK(reaper_work, fsnotify_mark_destroy);
 
 void fsnotify_get_mark(struct fsnotify_mark *mark)
 {
@@ -165,19 +172,10 @@ void fsnotify_detach_mark(struct fsnotify_mark *mark)
 	atomic_dec(&group->num_marks);
 }
 
-static void
-fsnotify_mark_free_rcu(struct rcu_head *rcu)
-{
-	struct fsnotify_mark	*mark;
-
-	mark = container_of(rcu, struct fsnotify_mark, g_rcu);
-	fsnotify_put_mark(mark);
-}
-
 /*
- * Free fsnotify mark. The freeing is actually happening from a call_srcu
- * callback. Caller must have a reference to the mark or be protected by
- * fsnotify_mark_srcu.
+ * Free fsnotify mark. The freeing is actually happening from a kthread which
+ * first waits for srcu period end. Caller must have a reference to the mark
+ * or be protected by fsnotify_mark_srcu.
  */
 void fsnotify_free_mark(struct fsnotify_mark *mark)
 {
@@ -192,7 +190,11 @@ void fsnotify_free_mark(struct fsnotify_mark *mark)
 	mark->flags &= ~FSNOTIFY_MARK_FLAG_ALIVE;
 	spin_unlock(&mark->lock);
 
-	call_srcu(&fsnotify_mark_srcu, &mark->g_rcu, fsnotify_mark_free_rcu);
+	spin_lock(&destroy_lock);
+	list_add(&mark->g_list, &destroy_list);
+	spin_unlock(&destroy_lock);
+	queue_delayed_work(system_unbound_wq, &reaper_work,
+				FSNOTIFY_REAPER_DELAY);
 
 	/*
 	 * Some groups like to know that marks are being freed.  This is a
@@ -388,7 +390,12 @@ err:
 
 	spin_unlock(&mark->lock);
 
-	call_srcu(&fsnotify_mark_srcu, &mark->g_rcu, fsnotify_mark_free_rcu);
+	spin_lock(&destroy_lock);
+	list_add(&mark->g_list, &destroy_list);
+	spin_unlock(&destroy_lock);
+	queue_delayed_work(system_unbound_wq, &reaper_work,
+				FSNOTIFY_REAPER_DELAY);
+
 	return ret;
 }
 
@@ -491,3 +498,21 @@ void fsnotify_init_mark(struct fsnotify_mark *mark,
 	atomic_set(&mark->refcnt, 1);
 	mark->free_mark = free_mark;
 }
+
+static void fsnotify_mark_destroy(struct work_struct *work)
+{
+	struct fsnotify_mark *mark, *next;
+	struct list_head private_destroy_list;
+
+	spin_lock(&destroy_lock);
+	/* exchange the list head */
+	list_replace_init(&destroy_list, &private_destroy_list);
+	spin_unlock(&destroy_lock);
+
+	synchronize_srcu(&fsnotify_mark_srcu);
+
+	list_for_each_entry_safe(mark, next, &private_destroy_list, g_list) {
+		list_del_init(&mark->g_list);
+		fsnotify_put_mark(mark);
+	}
+}
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 794fd15..cda0361 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -956,6 +956,7 @@ clean_orphan:
 		tmp_ret = ocfs2_del_inode_from_orphan(osb, inode, di_bh,
 				update_isize, end);
 		if (tmp_ret < 0) {
+			ocfs2_inode_unlock(inode, 1);
 			ret = tmp_ret;
 			mlog_errno(ret);
 			brelse(di_bh);
diff --git a/fs/pnode.c b/fs/pnode.c
index 6367e1e..c524fdd 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -202,6 +202,11 @@ static struct mount *last_dest, *last_source, *dest_master;
 static struct mountpoint *mp;
 static struct hlist_head *list;
 
+static inline bool peers(struct mount *m1, struct mount *m2)
+{
+	return m1->mnt_group_id == m2->mnt_group_id && m1->mnt_group_id;
+}
+
 static int propagate_one(struct mount *m)
 {
 	struct mount *child;
@@ -212,7 +217,7 @@ static int propagate_one(struct mount *m)
 	/* skip if mountpoint isn't covered by it */
 	if (!is_subdir(mp->m_dentry, m->mnt.mnt_root))
 		return 0;
-	if (m->mnt_group_id == last_dest->mnt_group_id) {
+	if (peers(m, last_dest)) {
 		type = CL_MAKE_SHARED;
 	} else {
 		struct mount *n, *p;
@@ -223,7 +228,7 @@ static int propagate_one(struct mount *m)
 					last_source = last_source->mnt_master;
 					last_dest = last_source->mnt_parent;
 				}
-				if (n->mnt_group_id != last_dest->mnt_group_id) {
+				if (!peers(n, last_dest)) {
 					last_source = last_source->mnt_master;
 					last_dest = last_source->mnt_parent;
 				}
diff --git a/fs/read_write.c b/fs/read_write.c
index 324ec27..dadf24e 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -17,6 +17,7 @@
 #include <linux/splice.h>
 #include <linux/compat.h>
 #include <linux/mount.h>
+#include <linux/fs.h>
 #include "internal.h"
 
 #include <asm/uaccess.h>
@@ -183,7 +184,7 @@ loff_t no_seek_end_llseek(struct file *file, loff_t offset, int whence)
 	switch (whence) {
 	case SEEK_SET: case SEEK_CUR:
 		return generic_file_llseek_size(file, offset, whence,
-						~0ULL, 0);
+						OFFSET_MAX, 0);
 	default:
 		return -EINVAL;
 	}
@@ -1532,10 +1533,12 @@ int vfs_clone_file_range(struct file *file_in, loff_t pos_in,
 
 	if (!(file_in->f_mode & FMODE_READ) ||
 	    !(file_out->f_mode & FMODE_WRITE) ||
-	    (file_out->f_flags & O_APPEND) ||
-	    !file_in->f_op->clone_file_range)
+	    (file_out->f_flags & O_APPEND))
 		return -EBADF;
 
+	if (!file_in->f_op->clone_file_range)
+		return -EOPNOTSUPP;
+
 	ret = clone_verify_area(file_in, pos_in, len, false);
 	if (ret)
 		return ret;
diff --git a/fs/xattr.c b/fs/xattr.c
index 07d0e47..4861322 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -940,7 +940,7 @@ ssize_t simple_xattr_list(struct inode *inode, struct simple_xattrs *xattrs,
 	bool trusted = capable(CAP_SYS_ADMIN);
 	struct simple_xattr *xattr;
 	ssize_t remaining_size = size;
-	int err;
+	int err = 0;
 
 #ifdef CONFIG_FS_POSIX_ACL
 	if (inode->i_acl) {
@@ -965,11 +965,11 @@ ssize_t simple_xattr_list(struct inode *inode, struct simple_xattrs *xattrs,
 
 		err = xattr_list_one(&buffer, &remaining_size, xattr->name);
 		if (err)
-			return err;
+			break;
 	}
 	spin_unlock(&xattrs->lock);
 
-	return size - remaining_size;
+	return err ? err : size - remaining_size;
 }
 
 /*
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 379c089..a9ebabfe 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -55,7 +55,7 @@ xfs_count_page_state(
 	} while ((bh = bh->b_this_page) != head);
 }
 
-STATIC struct block_device *
+struct block_device *
 xfs_find_bdev_for_inode(
 	struct inode		*inode)
 {
@@ -1208,6 +1208,10 @@ xfs_vm_writepages(
 	struct writeback_control *wbc)
 {
 	xfs_iflags_clear(XFS_I(mapping->host), XFS_ITRUNCATED);
+	if (dax_mapping(mapping))
+		return dax_writeback_mapping_range(mapping,
+				xfs_find_bdev_for_inode(mapping->host), wbc);
+
 	return generic_writepages(mapping, wbc);
 }
 
diff --git a/fs/xfs/xfs_aops.h b/fs/xfs/xfs_aops.h
index f6ffc9a..a4343c6 100644
--- a/fs/xfs/xfs_aops.h
+++ b/fs/xfs/xfs_aops.h
@@ -62,5 +62,6 @@ int	xfs_get_blocks_dax_fault(struct inode *inode, sector_t offset,
 			         struct buffer_head *map_bh, int create);
 
 extern void xfs_count_page_state(struct page *, int *, int *);
+extern struct block_device *xfs_find_bdev_for_inode(struct inode *);
 
 #endif /* __XFS_AOPS_H__ */
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 45ec9e4..6c87601 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -75,7 +75,8 @@ xfs_zero_extent(
 	ssize_t		size = XFS_FSB_TO_B(mp, count_fsb);
 
 	if (IS_DAX(VFS_I(ip)))
-		return dax_clear_blocks(VFS_I(ip), block, size);
+		return dax_clear_sectors(xfs_find_bdev_for_inode(VFS_I(ip)),
+				sector, size);
 
 	/*
 	 * let the block layer decide on the fastest method of
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index da37beb..594f7e6 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -4491,7 +4491,7 @@ xlog_recover_process(
 	 * know precisely what failed.
 	 */
 	if (pass == XLOG_RECOVER_CRCPASS) {
-		if (rhead->h_crc && crc != le32_to_cpu(rhead->h_crc))
+		if (rhead->h_crc && crc != rhead->h_crc)
 			return -EFSBADCRC;
 		return 0;
 	}
@@ -4502,7 +4502,7 @@ xlog_recover_process(
 	 * zero CRC check prevents warnings from being emitted when upgrading
 	 * the kernel from one that does not add CRCs by default.
 	 */
-	if (crc != le32_to_cpu(rhead->h_crc)) {
+	if (crc != rhead->h_crc) {
 		if (rhead->h_crc || xfs_sb_version_hascrc(&log->l_mp->m_sb)) {
 			xfs_alert(log->l_mp,
 		"log record CRC mismatch: found 0x%x, expected 0x%x.",
diff --git a/include/asm-generic/cputime_nsecs.h b/include/asm-generic/cputime_nsecs.h
index 0419485..0f1c6f3 100644
--- a/include/asm-generic/cputime_nsecs.h
+++ b/include/asm-generic/cputime_nsecs.h
@@ -75,7 +75,7 @@ typedef u64 __nocast cputime64_t;
  */
 static inline cputime_t timespec_to_cputime(const struct timespec *val)
 {
-	u64 ret = val->tv_sec * NSEC_PER_SEC + val->tv_nsec;
+	u64 ret = (u64)val->tv_sec * NSEC_PER_SEC + val->tv_nsec;
 	return (__force cputime_t) ret;
 }
 static inline void cputime_to_timespec(const cputime_t ct, struct timespec *val)
@@ -91,7 +91,8 @@ static inline void cputime_to_timespec(const cputime_t ct, struct timespec *val)
  */
 static inline cputime_t timeval_to_cputime(const struct timeval *val)
 {
-	u64 ret = val->tv_sec * NSEC_PER_SEC + val->tv_usec * NSEC_PER_USEC;
+	u64 ret = (u64)val->tv_sec * NSEC_PER_SEC +
+			val->tv_usec * NSEC_PER_USEC;
 	return (__force cputime_t) ret;
 }
 static inline void cputime_to_timeval(const cputime_t ct, struct timeval *val)
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 0b3c0d3..c370b26 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -239,6 +239,14 @@ extern void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address,
 			    pmd_t *pmdp);
 #endif
 
+#ifndef __HAVE_ARCH_PMDP_HUGE_SPLIT_PREPARE
+static inline void pmdp_huge_split_prepare(struct vm_area_struct *vma,
+					   unsigned long address, pmd_t *pmdp)
+{
+
+}
+#endif
+
 #ifndef __HAVE_ARCH_PTE_SAME
 static inline int pte_same(pte_t pte_a, pte_t pte_b)
 {
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index c65a212..c5b4b81 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1166,6 +1166,7 @@ struct drm_connector {
 	struct drm_mode_object base;
 
 	char *name;
+	int connector_id;
 	int connector_type;
 	int connector_type_id;
 	bool interlace_allowed;
@@ -2047,6 +2048,7 @@ struct drm_mode_config {
 	struct list_head fb_list;
 
 	int num_connector;
+	struct ida connector_ida;
 	struct list_head connector_list;
 	int num_encoder;
 	struct list_head encoder_list;
@@ -2200,7 +2202,11 @@ int drm_connector_register(struct drm_connector *connector);
 void drm_connector_unregister(struct drm_connector *connector);
 
 extern void drm_connector_cleanup(struct drm_connector *connector);
-extern unsigned int drm_connector_index(struct drm_connector *connector);
+static inline unsigned drm_connector_index(struct drm_connector *connector)
+{
+	return connector->connector_id;
+}
+
 /* helper to unplug all connectors from sysfs for device */
 extern void drm_connector_unplug_all(struct drm_device *dev);
 
diff --git a/include/dt-bindings/clock/tegra210-car.h b/include/dt-bindings/clock/tegra210-car.h
index 6f45aea..0a05b0d 100644
--- a/include/dt-bindings/clock/tegra210-car.h
+++ b/include/dt-bindings/clock/tegra210-car.h
@@ -126,7 +126,7 @@
 /* 104 */
 /* 105 */
 #define TEGRA210_CLK_D_AUDIO 106
-/* 107 ( affects abp -> ape) */
+#define TEGRA210_CLK_APB2APE 107
 /* 108 */
 /* 109 */
 /* 110 */
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index 9006c4e..3d8dcdd 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -163,4 +163,13 @@ struct amba_device name##_device = {				\
 #define module_amba_driver(__amba_drv) \
 	module_driver(__amba_drv, amba_driver_register, amba_driver_unregister)
 
+/*
+ * builtin_amba_driver() - Helper macro for drivers that don't do anything
+ * special in driver initcall.  This eliminates a lot of boilerplate.  Each
+ * driver may only use this macro once, and calling it replaces the instance
+ * device_initcall().
+ */
+#define builtin_amba_driver(__amba_drv) \
+	builtin_driver(__amba_drv, amba_driver_register)
+
 #endif
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 29189ae..4571ef1 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -682,9 +682,12 @@ static inline bool blk_write_same_mergeable(struct bio *a, struct bio *b)
 /*
  * q->prep_rq_fn return values
  */
-#define BLKPREP_OK		0	/* serve it */
-#define BLKPREP_KILL		1	/* fatal error, kill */
-#define BLKPREP_DEFER		2	/* leave on queue */
+enum {
+	BLKPREP_OK,		/* serve it */
+	BLKPREP_KILL,		/* fatal error, kill, return -EIO */
+	BLKPREP_DEFER,		/* leave on queue */
+	BLKPREP_INVALID,	/* invalid command, kill, return -EREMOTEIO */
+};
 
 extern unsigned long blk_max_low_pfn, blk_max_pfn;
 
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 7f540f7..789471d 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -127,6 +127,12 @@ struct cgroup_subsys_state {
 	 */
 	u64 serial_nr;
 
+	/*
+	 * Incremented by online self and children.  Used to guarantee that
+	 * parents are not offlined before their children.
+	 */
+	atomic_t online_cnt;
+
 	/* percpu_ref killing and RCU release */
 	struct rcu_head rcu_head;
 	struct work_struct destroy_work;
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 00b042c..48f5aab 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -144,7 +144,7 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
  */
 #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
 #define __trace_if(cond) \
-	if (__builtin_constant_p((cond)) ? !!(cond) :			\
+	if (__builtin_constant_p(!!(cond)) ? !!(cond) :			\
 	({								\
 		int ______r;						\
 		static struct ftrace_branch_data			\
diff --git a/include/linux/coresight-pmu.h b/include/linux/coresight-pmu.h
new file mode 100644
index 0000000..7d41026
--- /dev/null
+++ b/include/linux/coresight-pmu.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright(C) 2015 Linaro Limited. All rights reserved.
+ * Author: Mathieu Poirier <mathieu.poirier@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _LINUX_CORESIGHT_PMU_H
+#define _LINUX_CORESIGHT_PMU_H
+
+#define CORESIGHT_ETM_PMU_NAME "cs_etm"
+#define CORESIGHT_ETM_PMU_SEED  0x10
+
+/* ETMv3.5/PTM's ETMCR config bit */
+#define ETM_OPT_CYCACC  12
+#define ETM_OPT_TS      28
+
+static inline int coresight_get_trace_id(int cpu)
+{
+	/*
+	 * A trace ID of value 0 is invalid, so let's start at some
+	 * random value that fits in 7 bits and go from there.  Since
+	 * the common convention is to have data trace IDs be I(N) + 1,
+	 * set instruction trace IDs as a function of the CPU number.
+	 */
+	return (CORESIGHT_ETM_PMU_SEED + (cpu * 2));
+}
+
+#endif
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index a7cabfa2..385d62e 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -14,6 +14,7 @@
 #define _LINUX_CORESIGHT_H
 
 #include <linux/device.h>
+#include <linux/perf_event.h>
 #include <linux/sched.h>
 
 /* Peripheral id registers (0xFD0-0xFEC) */
@@ -152,7 +153,6 @@ struct coresight_connection {
 		by @coresight_ops.
  * @dev:	The device entity associated to this component.
  * @refcnt:	keep track of what is in use.
- * @path_link:	link of current component into the path being enabled.
  * @orphan:	true if the component has connections that haven't been linked.
  * @enable:	'true' if component is currently part of an active path.
  * @activated:	'true' only if a _sink_ has been activated.  A sink can be
@@ -168,7 +168,6 @@ struct coresight_device {
 	const struct coresight_ops *ops;
 	struct device dev;
 	atomic_t *refcnt;
-	struct list_head path_link;
 	bool orphan;
 	bool enable;	/* true only if configured as part of a path */
 	bool activated;	/* true only if a sink is part of a path */
@@ -183,12 +182,29 @@ struct coresight_device {
 /**
  * struct coresight_ops_sink - basic operations for a sink
  * Operations available for sinks
- * @enable:	enables the sink.
- * @disable:	disables the sink.
+ * @enable:		enables the sink.
+ * @disable:		disables the sink.
+ * @alloc_buffer:	initialises perf's ring buffer for trace collection.
+ * @free_buffer:	release memory allocated in @get_config.
+ * @set_buffer:		initialises buffer mechanic before a trace session.
+ * @reset_buffer:	finalises buffer mechanic after a trace session.
+ * @update_buffer:	update buffer pointers after a trace session.
  */
 struct coresight_ops_sink {
-	int (*enable)(struct coresight_device *csdev);
+	int (*enable)(struct coresight_device *csdev, u32 mode);
 	void (*disable)(struct coresight_device *csdev);
+	void *(*alloc_buffer)(struct coresight_device *csdev, int cpu,
+			      void **pages, int nr_pages, bool overwrite);
+	void (*free_buffer)(void *config);
+	int (*set_buffer)(struct coresight_device *csdev,
+			  struct perf_output_handle *handle,
+			  void *sink_config);
+	unsigned long (*reset_buffer)(struct coresight_device *csdev,
+				      struct perf_output_handle *handle,
+				      void *sink_config, bool *lost);
+	void (*update_buffer)(struct coresight_device *csdev,
+			      struct perf_output_handle *handle,
+			      void *sink_config);
 };
 
 /**
@@ -205,14 +221,18 @@ struct coresight_ops_link {
 /**
  * struct coresight_ops_source - basic operations for a source
  * Operations available for sources.
+ * @cpu_id:	returns the value of the CPU number this component
+ *		is associated to.
  * @trace_id:	returns the value of the component's trace ID as known
-		to the HW.
+ *		to the HW.
  * @enable:	enables tracing for a source.
  * @disable:	disables tracing for a source.
  */
 struct coresight_ops_source {
+	int (*cpu_id)(struct coresight_device *csdev);
 	int (*trace_id)(struct coresight_device *csdev);
-	int (*enable)(struct coresight_device *csdev);
+	int (*enable)(struct coresight_device *csdev,
+		      struct perf_event_attr *attr,  u32 mode);
 	void (*disable)(struct coresight_device *csdev);
 };
 
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index 85a868c..fea160e 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -137,6 +137,8 @@ static inline void set_mems_allowed(nodemask_t nodemask)
 	task_unlock(current);
 }
 
+extern void cpuset_post_attach_flush(void);
+
 #else /* !CONFIG_CPUSETS */
 
 static inline bool cpusets_enabled(void) { return false; }
@@ -243,6 +245,10 @@ static inline bool read_mems_allowed_retry(unsigned int seq)
 	return false;
 }
 
+static inline void cpuset_post_attach_flush(void)
+{
+}
+
 #endif /* !CONFIG_CPUSETS */
 
 #endif /* _LINUX_CPUSET_H */
diff --git a/include/linux/dax.h b/include/linux/dax.h
index 818e450..636dd59 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -7,7 +7,7 @@
 
 ssize_t dax_do_io(struct kiocb *, struct inode *, struct iov_iter *, loff_t,
 		  get_block_t, dio_iodone_t, int flags);
-int dax_clear_blocks(struct inode *, sector_t block, long size);
+int dax_clear_sectors(struct block_device *bdev, sector_t _sector, long _size);
 int dax_zero_page_range(struct inode *, loff_t from, unsigned len, get_block_t);
 int dax_truncate_page(struct inode *, loff_t from, get_block_t);
 int dax_fault(struct vm_area_struct *, struct vm_fault *, get_block_t,
@@ -52,6 +52,8 @@ static inline bool dax_mapping(struct address_space *mapping)
 {
 	return mapping->host && IS_DAX(mapping->host);
 }
-int dax_writeback_mapping_range(struct address_space *mapping, loff_t start,
-		loff_t end);
+
+struct writeback_control;
+int dax_writeback_mapping_range(struct address_space *mapping,
+		struct block_device *bdev, struct writeback_control *wbc);
 #endif
diff --git a/include/linux/devpts_fs.h b/include/linux/devpts_fs.h
index 251a209..e0ee0b3 100644
--- a/include/linux/devpts_fs.h
+++ b/include/linux/devpts_fs.h
@@ -19,6 +19,8 @@
 
 int devpts_new_index(struct inode *ptmx_inode);
 void devpts_kill_index(struct inode *ptmx_inode, int idx);
+void devpts_add_ref(struct inode *ptmx_inode);
+void devpts_del_ref(struct inode *ptmx_inode);
 /* mknod in devpts */
 struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
 		void *priv);
@@ -32,6 +34,8 @@ void devpts_pty_kill(struct inode *inode);
 /* Dummy stubs in the no-pty case */
 static inline int devpts_new_index(struct inode *ptmx_inode) { return -EINVAL; }
 static inline void devpts_kill_index(struct inode *ptmx_inode, int idx) { }
+static inline void devpts_add_ref(struct inode *ptmx_inode) { }
+static inline void devpts_del_ref(struct inode *ptmx_inode) { }
 static inline struct inode *devpts_pty_new(struct inode *ptmx_inode,
 		dev_t device, int index, void *priv)
 {
diff --git a/include/linux/eeprom_93xx46.h b/include/linux/eeprom_93xx46.h
index 0679181..885f587 100644
--- a/include/linux/eeprom_93xx46.h
+++ b/include/linux/eeprom_93xx46.h
@@ -3,16 +3,25 @@
  * platform description for 93xx46 EEPROMs.
  */
 
+struct gpio_desc;
+
 struct eeprom_93xx46_platform_data {
 	unsigned char	flags;
 #define EE_ADDR8	0x01		/*  8 bit addr. cfg */
 #define EE_ADDR16	0x02		/* 16 bit addr. cfg */
 #define EE_READONLY	0x08		/* forbid writing */
 
+	unsigned int	quirks;
+/* Single word read transfers only; no sequential read. */
+#define EEPROM_93XX46_QUIRK_SINGLE_WORD_READ		(1 << 0)
+/* Instructions such as EWEN are (addrlen + 2) in length. */
+#define EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH		(1 << 1)
+
 	/*
 	 * optional hooks to control additional logic
 	 * before and after spi transfer.
 	 */
 	void (*prepare)(void *);
 	void (*finish)(void *);
+	struct gpio_desc *select;
 };
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 569b5a8..47be3ad 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1199,7 +1199,10 @@ int efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
 struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid,
 				       struct list_head *head, bool remove);
 
-bool efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long len);
+bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
+		     unsigned long data_size);
+bool efivar_variable_is_removable(efi_guid_t vendor, const char *name,
+				  size_t len);
 
 extern struct work_struct efivar_work;
 void efivar_run_worker(void);
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index fa05e04..d841450 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -97,6 +97,12 @@ enum fid_type {
 	FILEID_FAT_WITH_PARENT = 0x72,
 
 	/*
+	 * 128 bit child FID (struct lu_fid)
+	 * 128 bit parent FID (struct lu_fid)
+	 */
+	FILEID_LUSTRE = 0x97,
+
+	/*
 	 * Filesystems must not use 0xff file ID.
 	 */
 	FILEID_INVALID = 0xff,
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index 6b7e89f..533c440 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -220,10 +220,7 @@ struct fsnotify_mark {
 	/* List of marks by group->i_fsnotify_marks. Also reused for queueing
 	 * mark into destroy_list when it's waiting for the end of SRCU period
 	 * before it can be freed. [group->mark_mutex] */
-	union {
-		struct list_head g_list;
-		struct rcu_head g_rcu;
-	};
+	struct list_head g_list;
 	/* Protects inode / mnt pointers, flags, masks */
 	spinlock_t lock;
 	/* List of marks for inode / vfsmount [obj_lock] */
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 81de712..c2b340e 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -603,6 +603,7 @@ extern int ftrace_arch_read_dyn_info(char *buf, int size);
 
 extern int skip_trace(unsigned long ip);
 extern void ftrace_module_init(struct module *mod);
+extern void ftrace_module_enable(struct module *mod);
 extern void ftrace_release_mod(struct module *mod);
 
 extern void ftrace_disable_daemon(void);
@@ -612,8 +613,9 @@ static inline int skip_trace(unsigned long ip) { return 0; }
 static inline int ftrace_force_update(void) { return 0; }
 static inline void ftrace_disable_daemon(void) { }
 static inline void ftrace_enable_daemon(void) { }
-static inline void ftrace_release_mod(struct module *mod) {}
-static inline void ftrace_module_init(struct module *mod) {}
+static inline void ftrace_module_init(struct module *mod) { }
+static inline void ftrace_module_enable(struct module *mod) { }
+static inline void ftrace_release_mod(struct module *mod) { }
 static inline __init int register_ftrace_command(struct ftrace_func_command *cmd)
 {
 	return -EINVAL;
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 753dbad..d23dab0 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -235,6 +235,7 @@ struct vmbus_channel_offer {
 #define VMBUS_CHANNEL_LOOPBACK_OFFER			0x100
 #define VMBUS_CHANNEL_PARENT_OFFER			0x200
 #define VMBUS_CHANNEL_REQUEST_MONITORED_NOTIFICATION	0x400
+#define VMBUS_CHANNEL_TLNPI_PROVIDER_OFFER		0x2000
 
 struct vmpacket_descriptor {
 	u16 type;
@@ -391,6 +392,10 @@ enum vmbus_channel_message_type {
 	CHANNELMSG_VERSION_RESPONSE		= 15,
 	CHANNELMSG_UNLOAD			= 16,
 	CHANNELMSG_UNLOAD_RESPONSE		= 17,
+	CHANNELMSG_18				= 18,
+	CHANNELMSG_19				= 19,
+	CHANNELMSG_20				= 20,
+	CHANNELMSG_TL_CONNECT_REQUEST		= 21,
 	CHANNELMSG_COUNT
 };
 
@@ -561,6 +566,13 @@ struct vmbus_channel_initiate_contact {
 	u64 monitor_page2;
 } __packed;
 
+/* Hyper-V socket: guest's connect()-ing to host */
+struct vmbus_channel_tl_connect_request {
+	struct vmbus_channel_message_header header;
+	uuid_le guest_endpoint_id;
+	uuid_le host_service_id;
+} __packed;
+
 struct vmbus_channel_version_response {
 	struct vmbus_channel_message_header header;
 	u8 version_supported;
@@ -633,6 +645,32 @@ enum hv_signal_policy {
 	HV_SIGNAL_POLICY_EXPLICIT,
 };
 
+enum vmbus_device_type {
+	HV_IDE = 0,
+	HV_SCSI,
+	HV_FC,
+	HV_NIC,
+	HV_ND,
+	HV_PCIE,
+	HV_FB,
+	HV_KBD,
+	HV_MOUSE,
+	HV_KVP,
+	HV_TS,
+	HV_HB,
+	HV_SHUTDOWN,
+	HV_FCOPY,
+	HV_BACKUP,
+	HV_DM,
+	HV_UNKOWN,
+};
+
+struct vmbus_device {
+	u16  dev_type;
+	uuid_le guid;
+	bool perf_device;
+};
+
 struct vmbus_channel {
 	/* Unique channel id */
 	int id;
@@ -728,6 +766,12 @@ struct vmbus_channel {
 	void (*sc_creation_callback)(struct vmbus_channel *new_sc);
 
 	/*
+	 * Channel rescind callback. Some channels (the hvsock ones), need to
+	 * register a callback which is invoked in vmbus_onoffer_rescind().
+	 */
+	void (*chn_rescind_callback)(struct vmbus_channel *channel);
+
+	/*
 	 * The spinlock to protect the structure. It is being used to protect
 	 * test-and-set access to various attributes of the structure as well
 	 * as all sc_list operations.
@@ -767,8 +811,30 @@ struct vmbus_channel {
 	 * signaling control.
 	 */
 	enum hv_signal_policy  signal_policy;
+	/*
+	 * On the channel send side, many of the VMBUS
+	 * device drivers explicity serialize access to the
+	 * outgoing ring buffer. Give more control to the
+	 * VMBUS device drivers in terms how to serialize
+	 * accesss to the outgoing ring buffer.
+	 * The default behavior will be to aquire the
+	 * ring lock to preserve the current behavior.
+	 */
+	bool acquire_ring_lock;
+
 };
 
+static inline void set_channel_lock_state(struct vmbus_channel *c, bool state)
+{
+	c->acquire_ring_lock = state;
+}
+
+static inline bool is_hvsock_channel(const struct vmbus_channel *c)
+{
+	return !!(c->offermsg.offer.chn_flags &
+		  VMBUS_CHANNEL_TLNPI_PROVIDER_OFFER);
+}
+
 static inline void set_channel_signal_state(struct vmbus_channel *c,
 					    enum hv_signal_policy policy)
 {
@@ -790,6 +856,12 @@ static inline void *get_per_channel_state(struct vmbus_channel *c)
 	return c->per_channel_state;
 }
 
+static inline void set_channel_pending_send_size(struct vmbus_channel *c,
+						 u32 size)
+{
+	c->outbound.ring_buffer->pending_send_sz = size;
+}
+
 void vmbus_onmessage(void *context);
 
 int vmbus_request_offers(void);
@@ -801,6 +873,9 @@ int vmbus_request_offers(void);
 void vmbus_set_sc_create_callback(struct vmbus_channel *primary_channel,
 			void (*sc_cr_cb)(struct vmbus_channel *new_sc));
 
+void vmbus_set_chn_rescind_callback(struct vmbus_channel *channel,
+		void (*chn_rescind_cb)(struct vmbus_channel *));
+
 /*
  * Retrieve the (sub) channel on which to send an outgoing request.
  * When a primary channel has multiple sub-channels, we choose a
@@ -940,6 +1015,20 @@ extern void vmbus_ontimer(unsigned long data);
 struct hv_driver {
 	const char *name;
 
+	/*
+	 * A hvsock offer, which has a VMBUS_CHANNEL_TLNPI_PROVIDER_OFFER
+	 * channel flag, actually doesn't mean a synthetic device because the
+	 * offer's if_type/if_instance can change for every new hvsock
+	 * connection.
+	 *
+	 * However, to facilitate the notification of new-offer/rescind-offer
+	 * from vmbus driver to hvsock driver, we can handle hvsock offer as
+	 * a special vmbus device, and hence we need the below flag to
+	 * indicate if the driver is the hvsock driver or not: we need to
+	 * specially treat the hvosck offer & driver in vmbus_match().
+	 */
+	bool hvsock;
+
 	/* the device type supported by this driver */
 	uuid_le dev_type;
 	const struct hv_vmbus_device_id *id_table;
@@ -959,6 +1048,8 @@ struct hv_device {
 
 	/* the device instance id of this device */
 	uuid_le dev_instance;
+	u16 vendor_id;
+	u16 device_id;
 
 	struct device device;
 
@@ -994,6 +1085,8 @@ int __must_check __vmbus_driver_register(struct hv_driver *hv_driver,
 					 const char *mod_name);
 void vmbus_driver_unregister(struct hv_driver *hv_driver);
 
+void vmbus_hvsock_device_unregister(struct vmbus_channel *channel);
+
 int vmbus_allocate_mmio(struct resource **new, struct hv_device *device_obj,
 			resource_size_t min, resource_size_t max,
 			resource_size_t size, resource_size_t align,
@@ -1242,4 +1335,6 @@ void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid);
 
 extern __u32 vmbus_proto_version;
 
+int vmbus_send_tl_connect_request(const uuid_le *shv_guest_servie_id,
+				  const uuid_le *shv_host_servie_id);
 #endif /* _HYPERV_H */
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index 821273c..2d9b6500 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -235,6 +235,9 @@ static inline void dmar_writeq(void __iomem *addr, u64 val)
 /* low 64 bit */
 #define dma_frcd_page_addr(d) (d & (((u64)-1) << PAGE_SHIFT))
 
+/* PRS_REG */
+#define DMA_PRS_PPR	((u32)1)
+
 #define IOMMU_WAIT_OP(iommu, offset, op, cond, sts)			\
 do {									\
 	cycles_t start_time = get_cycles();				\
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 851821b..bec2abb 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -526,6 +526,7 @@ enum ata_lpm_policy {
 enum ata_lpm_hints {
 	ATA_LPM_EMPTY		= (1 << 0), /* port empty/probing */
 	ATA_LPM_HIPM		= (1 << 1), /* may use HIPM */
+	ATA_LPM_WAKE_ONLY	= (1 << 2), /* only wake up link */
 };
 
 /* forward declarations */
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index bed40df..141ffdd 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h
@@ -26,9 +26,8 @@ enum {
 
 	/* need to set a limit somewhere, but yes, this is likely overkill */
 	ND_IOCTL_MAX_BUFLEN = SZ_4M,
-	ND_CMD_MAX_ELEM = 4,
+	ND_CMD_MAX_ELEM = 5,
 	ND_CMD_MAX_ENVELOPE = 16,
-	ND_CMD_ARS_STATUS_MAX = SZ_4K,
 	ND_MAX_MAPPINGS = 32,
 
 	/* region flag indicating to direct-map persistent memory by default */
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index d675011..2190419 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -135,6 +135,10 @@ enum {
 	/* Memory types */
 	NVM_ID_FMTYPE_SLC	= 0,
 	NVM_ID_FMTYPE_MLC	= 1,
+
+	/* Device capabilities */
+	NVM_ID_DCAP_BBLKMGMT	= 0x1,
+	NVM_UD_DCAP_ECC		= 0x2,
 };
 
 struct nvm_id_lp_mlc {
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index c57e424..4dca42f 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -66,7 +66,7 @@ struct lock_class {
 	/*
 	 * class-hash:
 	 */
-	struct list_head		hash_entry;
+	struct hlist_node		hash_entry;
 
 	/*
 	 * global list of all lock-classes:
@@ -199,7 +199,7 @@ struct lock_chain {
 	u8				irq_context;
 	u8				depth;
 	u16				base;
-	struct list_head		entry;
+	struct hlist_node		entry;
 	u64				chain_key;
 };
 
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 430a929..a0e8cc8 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -44,6 +44,8 @@
 
 #include <linux/timecounter.h>
 
+#define DEFAULT_UAR_PAGE_SHIFT  12
+
 #define MAX_MSIX_P_PORT		17
 #define MAX_MSIX		64
 #define MIN_MSIX_P_PORT		5
@@ -856,6 +858,7 @@ struct mlx4_dev {
 	u64			regid_promisc_array[MLX4_MAX_PORTS + 1];
 	u64			regid_allmulti_array[MLX4_MAX_PORTS + 1];
 	struct mlx4_vf_dev     *dev_vfs;
+	u8  uar_page_shift;
 };
 
 struct mlx4_clock_params {
@@ -1528,4 +1531,14 @@ int mlx4_ACCESS_PTYS_REG(struct mlx4_dev *dev,
 int mlx4_get_internal_clock_params(struct mlx4_dev *dev,
 				   struct mlx4_clock_params *params);
 
+static inline int mlx4_to_hw_uar_index(struct mlx4_dev *dev, int index)
+{
+	return (index << (PAGE_SHIFT - dev->uar_page_shift));
+}
+
+static inline int mlx4_get_num_reserved_uar(struct mlx4_dev *dev)
+{
+	/* The first 128 UARs are used for EQ doorbells */
+	return (128 >> (PAGE_SHIFT - dev->uar_page_shift));
+}
 #endif /* MLX4_DEVICE_H */
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 231ab6b..51f1e54 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -207,15 +207,15 @@ struct mlx5_ifc_flow_table_fields_supported_bits {
 	u8         outer_dmac[0x1];
 	u8         outer_smac[0x1];
 	u8         outer_ether_type[0x1];
-	u8         reserved_0[0x1];
+	u8         reserved_at_3[0x1];
 	u8         outer_first_prio[0x1];
 	u8         outer_first_cfi[0x1];
 	u8         outer_first_vid[0x1];
-	u8         reserved_1[0x1];
+	u8         reserved_at_7[0x1];
 	u8         outer_second_prio[0x1];
 	u8         outer_second_cfi[0x1];
 	u8         outer_second_vid[0x1];
-	u8         reserved_2[0x1];
+	u8         reserved_at_b[0x1];
 	u8         outer_sip[0x1];
 	u8         outer_dip[0x1];
 	u8         outer_frag[0x1];
@@ -230,21 +230,21 @@ struct mlx5_ifc_flow_table_fields_supported_bits {
 	u8         outer_gre_protocol[0x1];
 	u8         outer_gre_key[0x1];
 	u8         outer_vxlan_vni[0x1];
-	u8         reserved_3[0x5];
+	u8         reserved_at_1a[0x5];
 	u8         source_eswitch_port[0x1];
 
 	u8         inner_dmac[0x1];
 	u8         inner_smac[0x1];
 	u8         inner_ether_type[0x1];
-	u8         reserved_4[0x1];
+	u8         reserved_at_23[0x1];
 	u8         inner_first_prio[0x1];
 	u8         inner_first_cfi[0x1];
 	u8         inner_first_vid[0x1];
-	u8         reserved_5[0x1];
+	u8         reserved_at_27[0x1];
 	u8         inner_second_prio[0x1];
 	u8         inner_second_cfi[0x1];
 	u8         inner_second_vid[0x1];
-	u8         reserved_6[0x1];
+	u8         reserved_at_2b[0x1];
 	u8         inner_sip[0x1];
 	u8         inner_dip[0x1];
 	u8         inner_frag[0x1];
@@ -256,37 +256,37 @@ struct mlx5_ifc_flow_table_fields_supported_bits {
 	u8         inner_tcp_sport[0x1];
 	u8         inner_tcp_dport[0x1];
 	u8         inner_tcp_flags[0x1];
-	u8         reserved_7[0x9];
+	u8         reserved_at_37[0x9];
 
-	u8         reserved_8[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_flow_table_prop_layout_bits {
 	u8         ft_support[0x1];
-	u8         reserved_0[0x2];
+	u8         reserved_at_1[0x2];
 	u8	   flow_modify_en[0x1];
 	u8         modify_root[0x1];
 	u8         identified_miss_table_mode[0x1];
 	u8         flow_table_modify[0x1];
-	u8         reserved_1[0x19];
+	u8         reserved_at_7[0x19];
 
-	u8         reserved_2[0x2];
+	u8         reserved_at_20[0x2];
 	u8         log_max_ft_size[0x6];
-	u8         reserved_3[0x10];
+	u8         reserved_at_28[0x10];
 	u8         max_ft_level[0x8];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_40[0x20];
 
-	u8         reserved_5[0x18];
+	u8         reserved_at_60[0x18];
 	u8         log_max_ft_num[0x8];
 
-	u8         reserved_6[0x18];
+	u8         reserved_at_80[0x18];
 	u8         log_max_destination[0x8];
 
-	u8         reserved_7[0x18];
+	u8         reserved_at_a0[0x18];
 	u8         log_max_flow[0x8];
 
-	u8         reserved_8[0x40];
+	u8         reserved_at_c0[0x40];
 
 	struct mlx5_ifc_flow_table_fields_supported_bits ft_field_support;
 
@@ -298,13 +298,13 @@ struct mlx5_ifc_odp_per_transport_service_cap_bits {
 	u8         receive[0x1];
 	u8         write[0x1];
 	u8         read[0x1];
-	u8         reserved_0[0x1];
+	u8         reserved_at_4[0x1];
 	u8         srq_receive[0x1];
-	u8         reserved_1[0x1a];
+	u8         reserved_at_6[0x1a];
 };
 
 struct mlx5_ifc_ipv4_layout_bits {
-	u8         reserved_0[0x60];
+	u8         reserved_at_0[0x60];
 
 	u8         ipv4[0x20];
 };
@@ -316,7 +316,7 @@ struct mlx5_ifc_ipv6_layout_bits {
 union mlx5_ifc_ipv6_layout_ipv4_layout_auto_bits {
 	struct mlx5_ifc_ipv6_layout_bits ipv6_layout;
 	struct mlx5_ifc_ipv4_layout_bits ipv4_layout;
-	u8         reserved_0[0x80];
+	u8         reserved_at_0[0x80];
 };
 
 struct mlx5_ifc_fte_match_set_lyr_2_4_bits {
@@ -336,15 +336,15 @@ struct mlx5_ifc_fte_match_set_lyr_2_4_bits {
 	u8         ip_dscp[0x6];
 	u8         ip_ecn[0x2];
 	u8         vlan_tag[0x1];
-	u8         reserved_0[0x1];
+	u8         reserved_at_91[0x1];
 	u8         frag[0x1];
-	u8         reserved_1[0x4];
+	u8         reserved_at_93[0x4];
 	u8         tcp_flags[0x9];
 
 	u8         tcp_sport[0x10];
 	u8         tcp_dport[0x10];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_c0[0x20];
 
 	u8         udp_sport[0x10];
 	u8         udp_dport[0x10];
@@ -355,9 +355,9 @@ struct mlx5_ifc_fte_match_set_lyr_2_4_bits {
 };
 
 struct mlx5_ifc_fte_match_set_misc_bits {
-	u8         reserved_0[0x20];
+	u8         reserved_at_0[0x20];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         source_port[0x10];
 
 	u8         outer_second_prio[0x3];
@@ -369,31 +369,31 @@ struct mlx5_ifc_fte_match_set_misc_bits {
 
 	u8         outer_second_vlan_tag[0x1];
 	u8         inner_second_vlan_tag[0x1];
-	u8         reserved_2[0xe];
+	u8         reserved_at_62[0xe];
 	u8         gre_protocol[0x10];
 
 	u8         gre_key_h[0x18];
 	u8         gre_key_l[0x8];
 
 	u8         vxlan_vni[0x18];
-	u8         reserved_3[0x8];
+	u8         reserved_at_b8[0x8];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_c0[0x20];
 
-	u8         reserved_5[0xc];
+	u8         reserved_at_e0[0xc];
 	u8         outer_ipv6_flow_label[0x14];
 
-	u8         reserved_6[0xc];
+	u8         reserved_at_100[0xc];
 	u8         inner_ipv6_flow_label[0x14];
 
-	u8         reserved_7[0xe0];
+	u8         reserved_at_120[0xe0];
 };
 
 struct mlx5_ifc_cmd_pas_bits {
 	u8         pa_h[0x20];
 
 	u8         pa_l[0x14];
-	u8         reserved_0[0xc];
+	u8         reserved_at_34[0xc];
 };
 
 struct mlx5_ifc_uint64_bits {
@@ -418,31 +418,31 @@ enum {
 struct mlx5_ifc_ads_bits {
 	u8         fl[0x1];
 	u8         free_ar[0x1];
-	u8         reserved_0[0xe];
+	u8         reserved_at_2[0xe];
 	u8         pkey_index[0x10];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_20[0x8];
 	u8         grh[0x1];
 	u8         mlid[0x7];
 	u8         rlid[0x10];
 
 	u8         ack_timeout[0x5];
-	u8         reserved_2[0x3];
+	u8         reserved_at_45[0x3];
 	u8         src_addr_index[0x8];
-	u8         reserved_3[0x4];
+	u8         reserved_at_50[0x4];
 	u8         stat_rate[0x4];
 	u8         hop_limit[0x8];
 
-	u8         reserved_4[0x4];
+	u8         reserved_at_60[0x4];
 	u8         tclass[0x8];
 	u8         flow_label[0x14];
 
 	u8         rgid_rip[16][0x8];
 
-	u8         reserved_5[0x4];
+	u8         reserved_at_100[0x4];
 	u8         f_dscp[0x1];
 	u8         f_ecn[0x1];
-	u8         reserved_6[0x1];
+	u8         reserved_at_106[0x1];
 	u8         f_eth_prio[0x1];
 	u8         ecn[0x2];
 	u8         dscp[0x6];
@@ -458,25 +458,25 @@ struct mlx5_ifc_ads_bits {
 };
 
 struct mlx5_ifc_flow_table_nic_cap_bits {
-	u8         reserved_0[0x200];
+	u8         reserved_at_0[0x200];
 
 	struct mlx5_ifc_flow_table_prop_layout_bits flow_table_properties_nic_receive;
 
-	u8         reserved_1[0x200];
+	u8         reserved_at_400[0x200];
 
 	struct mlx5_ifc_flow_table_prop_layout_bits flow_table_properties_nic_receive_sniffer;
 
 	struct mlx5_ifc_flow_table_prop_layout_bits flow_table_properties_nic_transmit;
 
-	u8         reserved_2[0x200];
+	u8         reserved_at_a00[0x200];
 
 	struct mlx5_ifc_flow_table_prop_layout_bits flow_table_properties_nic_transmit_sniffer;
 
-	u8         reserved_3[0x7200];
+	u8         reserved_at_e00[0x7200];
 };
 
 struct mlx5_ifc_flow_table_eswitch_cap_bits {
-	u8     reserved_0[0x200];
+	u8     reserved_at_0[0x200];
 
 	struct mlx5_ifc_flow_table_prop_layout_bits flow_table_properties_nic_esw_fdb;
 
@@ -484,7 +484,7 @@ struct mlx5_ifc_flow_table_eswitch_cap_bits {
 
 	struct mlx5_ifc_flow_table_prop_layout_bits flow_table_properties_esw_acl_egress;
 
-	u8      reserved_1[0x7800];
+	u8      reserved_at_800[0x7800];
 };
 
 struct mlx5_ifc_e_switch_cap_bits {
@@ -493,9 +493,9 @@ struct mlx5_ifc_e_switch_cap_bits {
 	u8         vport_svlan_insert[0x1];
 	u8         vport_cvlan_insert_if_not_exist[0x1];
 	u8         vport_cvlan_insert_overwrite[0x1];
-	u8         reserved_0[0x1b];
+	u8         reserved_at_5[0x1b];
 
-	u8         reserved_1[0x7e0];
+	u8         reserved_at_20[0x7e0];
 };
 
 struct mlx5_ifc_per_protocol_networking_offload_caps_bits {
@@ -504,51 +504,51 @@ struct mlx5_ifc_per_protocol_networking_offload_caps_bits {
 	u8         lro_cap[0x1];
 	u8         lro_psh_flag[0x1];
 	u8         lro_time_stamp[0x1];
-	u8         reserved_0[0x3];
+	u8         reserved_at_5[0x3];
 	u8         self_lb_en_modifiable[0x1];
-	u8         reserved_1[0x2];
+	u8         reserved_at_9[0x2];
 	u8         max_lso_cap[0x5];
-	u8         reserved_2[0x4];
+	u8         reserved_at_10[0x4];
 	u8         rss_ind_tbl_cap[0x4];
-	u8         reserved_3[0x3];
+	u8         reserved_at_18[0x3];
 	u8         tunnel_lso_const_out_ip_id[0x1];
-	u8         reserved_4[0x2];
+	u8         reserved_at_1c[0x2];
 	u8         tunnel_statless_gre[0x1];
 	u8         tunnel_stateless_vxlan[0x1];
 
-	u8         reserved_5[0x20];
+	u8         reserved_at_20[0x20];
 
-	u8         reserved_6[0x10];
+	u8         reserved_at_40[0x10];
 	u8         lro_min_mss_size[0x10];
 
-	u8         reserved_7[0x120];
+	u8         reserved_at_60[0x120];
 
 	u8         lro_timer_supported_periods[4][0x20];
 
-	u8         reserved_8[0x600];
+	u8         reserved_at_200[0x600];
 };
 
 struct mlx5_ifc_roce_cap_bits {
 	u8         roce_apm[0x1];
-	u8         reserved_0[0x1f];
+	u8         reserved_at_1[0x1f];
 
-	u8         reserved_1[0x60];
+	u8         reserved_at_20[0x60];
 
-	u8         reserved_2[0xc];
+	u8         reserved_at_80[0xc];
 	u8         l3_type[0x4];
-	u8         reserved_3[0x8];
+	u8         reserved_at_90[0x8];
 	u8         roce_version[0x8];
 
-	u8         reserved_4[0x10];
+	u8         reserved_at_a0[0x10];
 	u8         r_roce_dest_udp_port[0x10];
 
 	u8         r_roce_max_src_udp_port[0x10];
 	u8         r_roce_min_src_udp_port[0x10];
 
-	u8         reserved_5[0x10];
+	u8         reserved_at_e0[0x10];
 	u8         roce_address_table_size[0x10];
 
-	u8         reserved_6[0x700];
+	u8         reserved_at_100[0x700];
 };
 
 enum {
@@ -576,35 +576,35 @@ enum {
 };
 
 struct mlx5_ifc_atomic_caps_bits {
-	u8         reserved_0[0x40];
+	u8         reserved_at_0[0x40];
 
 	u8         atomic_req_8B_endianess_mode[0x2];
-	u8         reserved_1[0x4];
+	u8         reserved_at_42[0x4];
 	u8         supported_atomic_req_8B_endianess_mode_1[0x1];
 
-	u8         reserved_2[0x19];
+	u8         reserved_at_47[0x19];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
-	u8         reserved_4[0x10];
+	u8         reserved_at_80[0x10];
 	u8         atomic_operations[0x10];
 
-	u8         reserved_5[0x10];
+	u8         reserved_at_a0[0x10];
 	u8         atomic_size_qp[0x10];
 
-	u8         reserved_6[0x10];
+	u8         reserved_at_c0[0x10];
 	u8         atomic_size_dc[0x10];
 
-	u8         reserved_7[0x720];
+	u8         reserved_at_e0[0x720];
 };
 
 struct mlx5_ifc_odp_cap_bits {
-	u8         reserved_0[0x40];
+	u8         reserved_at_0[0x40];
 
 	u8         sig[0x1];
-	u8         reserved_1[0x1f];
+	u8         reserved_at_41[0x1f];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 
 	struct mlx5_ifc_odp_per_transport_service_cap_bits rc_odp_caps;
 
@@ -612,7 +612,7 @@ struct mlx5_ifc_odp_cap_bits {
 
 	struct mlx5_ifc_odp_per_transport_service_cap_bits ud_odp_caps;
 
-	u8         reserved_3[0x720];
+	u8         reserved_at_e0[0x720];
 };
 
 enum {
@@ -660,55 +660,55 @@ enum {
 };
 
 struct mlx5_ifc_cmd_hca_cap_bits {
-	u8         reserved_0[0x80];
+	u8         reserved_at_0[0x80];
 
 	u8         log_max_srq_sz[0x8];
 	u8         log_max_qp_sz[0x8];
-	u8         reserved_1[0xb];
+	u8         reserved_at_90[0xb];
 	u8         log_max_qp[0x5];
 
-	u8         reserved_2[0xb];
+	u8         reserved_at_a0[0xb];
 	u8         log_max_srq[0x5];
-	u8         reserved_3[0x10];
+	u8         reserved_at_b0[0x10];
 
-	u8         reserved_4[0x8];
+	u8         reserved_at_c0[0x8];
 	u8         log_max_cq_sz[0x8];
-	u8         reserved_5[0xb];
+	u8         reserved_at_d0[0xb];
 	u8         log_max_cq[0x5];
 
 	u8         log_max_eq_sz[0x8];
-	u8         reserved_6[0x2];
+	u8         reserved_at_e8[0x2];
 	u8         log_max_mkey[0x6];
-	u8         reserved_7[0xc];
+	u8         reserved_at_f0[0xc];
 	u8         log_max_eq[0x4];
 
 	u8         max_indirection[0x8];
-	u8         reserved_8[0x1];
+	u8         reserved_at_108[0x1];
 	u8         log_max_mrw_sz[0x7];
-	u8         reserved_9[0x2];
+	u8         reserved_at_110[0x2];
 	u8         log_max_bsf_list_size[0x6];
-	u8         reserved_10[0x2];
+	u8         reserved_at_118[0x2];
 	u8         log_max_klm_list_size[0x6];
 
-	u8         reserved_11[0xa];
+	u8         reserved_at_120[0xa];
 	u8         log_max_ra_req_dc[0x6];
-	u8         reserved_12[0xa];
+	u8         reserved_at_130[0xa];
 	u8         log_max_ra_res_dc[0x6];
 
-	u8         reserved_13[0xa];
+	u8         reserved_at_140[0xa];
 	u8         log_max_ra_req_qp[0x6];
-	u8         reserved_14[0xa];
+	u8         reserved_at_150[0xa];
 	u8         log_max_ra_res_qp[0x6];
 
 	u8         pad_cap[0x1];
 	u8         cc_query_allowed[0x1];
 	u8         cc_modify_allowed[0x1];
-	u8         reserved_15[0xd];
+	u8         reserved_at_163[0xd];
 	u8         gid_table_size[0x10];
 
 	u8         out_of_seq_cnt[0x1];
 	u8         vport_counters[0x1];
-	u8         reserved_16[0x4];
+	u8         reserved_at_182[0x4];
 	u8         max_qp_cnt[0xa];
 	u8         pkey_table_size[0x10];
 
@@ -716,158 +716,158 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 	u8         vhca_group_manager[0x1];
 	u8         ib_virt[0x1];
 	u8         eth_virt[0x1];
-	u8         reserved_17[0x1];
+	u8         reserved_at_1a4[0x1];
 	u8         ets[0x1];
 	u8         nic_flow_table[0x1];
 	u8         eswitch_flow_table[0x1];
 	u8	   early_vf_enable;
-	u8         reserved_18[0x2];
+	u8         reserved_at_1a8[0x2];
 	u8         local_ca_ack_delay[0x5];
-	u8         reserved_19[0x6];
+	u8         reserved_at_1af[0x6];
 	u8         port_type[0x2];
 	u8         num_ports[0x8];
 
-	u8         reserved_20[0x3];
+	u8         reserved_at_1bf[0x3];
 	u8         log_max_msg[0x5];
-	u8         reserved_21[0x18];
+	u8         reserved_at_1c7[0x18];
 
 	u8         stat_rate_support[0x10];
-	u8         reserved_22[0xc];
+	u8         reserved_at_1ef[0xc];
 	u8         cqe_version[0x4];
 
 	u8         compact_address_vector[0x1];
-	u8         reserved_23[0xe];
+	u8         reserved_at_200[0xe];
 	u8         drain_sigerr[0x1];
 	u8         cmdif_checksum[0x2];
 	u8         sigerr_cqe[0x1];
-	u8         reserved_24[0x1];
+	u8         reserved_at_212[0x1];
 	u8         wq_signature[0x1];
 	u8         sctr_data_cqe[0x1];
-	u8         reserved_25[0x1];
+	u8         reserved_at_215[0x1];
 	u8         sho[0x1];
 	u8         tph[0x1];
 	u8         rf[0x1];
 	u8         dct[0x1];
-	u8         reserved_26[0x1];
+	u8         reserved_at_21a[0x1];
 	u8         eth_net_offloads[0x1];
 	u8         roce[0x1];
 	u8         atomic[0x1];
-	u8         reserved_27[0x1];
+	u8         reserved_at_21e[0x1];
 
 	u8         cq_oi[0x1];
 	u8         cq_resize[0x1];
 	u8         cq_moderation[0x1];
-	u8         reserved_28[0x3];
+	u8         reserved_at_222[0x3];
 	u8         cq_eq_remap[0x1];
 	u8         pg[0x1];
 	u8         block_lb_mc[0x1];
-	u8         reserved_29[0x1];
+	u8         reserved_at_228[0x1];
 	u8         scqe_break_moderation[0x1];
-	u8         reserved_30[0x1];
+	u8         reserved_at_22a[0x1];
 	u8         cd[0x1];
-	u8         reserved_31[0x1];
+	u8         reserved_at_22c[0x1];
 	u8         apm[0x1];
-	u8         reserved_32[0x7];
+	u8         reserved_at_22e[0x7];
 	u8         qkv[0x1];
 	u8         pkv[0x1];
-	u8         reserved_33[0x4];
+	u8         reserved_at_237[0x4];
 	u8         xrc[0x1];
 	u8         ud[0x1];
 	u8         uc[0x1];
 	u8         rc[0x1];
 
-	u8         reserved_34[0xa];
+	u8         reserved_at_23f[0xa];
 	u8         uar_sz[0x6];
-	u8         reserved_35[0x8];
+	u8         reserved_at_24f[0x8];
 	u8         log_pg_sz[0x8];
 
 	u8         bf[0x1];
-	u8         reserved_36[0x1];
+	u8         reserved_at_260[0x1];
 	u8         pad_tx_eth_packet[0x1];
-	u8         reserved_37[0x8];
+	u8         reserved_at_262[0x8];
 	u8         log_bf_reg_size[0x5];
-	u8         reserved_38[0x10];
+	u8         reserved_at_26f[0x10];
 
-	u8         reserved_39[0x10];
+	u8         reserved_at_27f[0x10];
 	u8         max_wqe_sz_sq[0x10];
 
-	u8         reserved_40[0x10];
+	u8         reserved_at_29f[0x10];
 	u8         max_wqe_sz_rq[0x10];
 
-	u8         reserved_41[0x10];
+	u8         reserved_at_2bf[0x10];
 	u8         max_wqe_sz_sq_dc[0x10];
 
-	u8         reserved_42[0x7];
+	u8         reserved_at_2df[0x7];
 	u8         max_qp_mcg[0x19];
 
-	u8         reserved_43[0x18];
+	u8         reserved_at_2ff[0x18];
 	u8         log_max_mcg[0x8];
 
-	u8         reserved_44[0x3];
+	u8         reserved_at_31f[0x3];
 	u8         log_max_transport_domain[0x5];
-	u8         reserved_45[0x3];
+	u8         reserved_at_327[0x3];
 	u8         log_max_pd[0x5];
-	u8         reserved_46[0xb];
+	u8         reserved_at_32f[0xb];
 	u8         log_max_xrcd[0x5];
 
-	u8         reserved_47[0x20];
+	u8         reserved_at_33f[0x20];
 
-	u8         reserved_48[0x3];
+	u8         reserved_at_35f[0x3];
 	u8         log_max_rq[0x5];
-	u8         reserved_49[0x3];
+	u8         reserved_at_367[0x3];
 	u8         log_max_sq[0x5];
-	u8         reserved_50[0x3];
+	u8         reserved_at_36f[0x3];
 	u8         log_max_tir[0x5];
-	u8         reserved_51[0x3];
+	u8         reserved_at_377[0x3];
 	u8         log_max_tis[0x5];
 
 	u8         basic_cyclic_rcv_wqe[0x1];
-	u8         reserved_52[0x2];
+	u8         reserved_at_380[0x2];
 	u8         log_max_rmp[0x5];
-	u8         reserved_53[0x3];
+	u8         reserved_at_387[0x3];
 	u8         log_max_rqt[0x5];
-	u8         reserved_54[0x3];
+	u8         reserved_at_38f[0x3];
 	u8         log_max_rqt_size[0x5];
-	u8         reserved_55[0x3];
+	u8         reserved_at_397[0x3];
 	u8         log_max_tis_per_sq[0x5];
 
-	u8         reserved_56[0x3];
+	u8         reserved_at_39f[0x3];
 	u8         log_max_stride_sz_rq[0x5];
-	u8         reserved_57[0x3];
+	u8         reserved_at_3a7[0x3];
 	u8         log_min_stride_sz_rq[0x5];
-	u8         reserved_58[0x3];
+	u8         reserved_at_3af[0x3];
 	u8         log_max_stride_sz_sq[0x5];
-	u8         reserved_59[0x3];
+	u8         reserved_at_3b7[0x3];
 	u8         log_min_stride_sz_sq[0x5];
 
-	u8         reserved_60[0x1b];
+	u8         reserved_at_3bf[0x1b];
 	u8         log_max_wq_sz[0x5];
 
 	u8         nic_vport_change_event[0x1];
-	u8         reserved_61[0xa];
+	u8         reserved_at_3e0[0xa];
 	u8         log_max_vlan_list[0x5];
-	u8         reserved_62[0x3];
+	u8         reserved_at_3ef[0x3];
 	u8         log_max_current_mc_list[0x5];
-	u8         reserved_63[0x3];
+	u8         reserved_at_3f7[0x3];
 	u8         log_max_current_uc_list[0x5];
 
-	u8         reserved_64[0x80];
+	u8         reserved_at_3ff[0x80];
 
-	u8         reserved_65[0x3];
+	u8         reserved_at_47f[0x3];
 	u8         log_max_l2_table[0x5];
-	u8         reserved_66[0x8];
+	u8         reserved_at_487[0x8];
 	u8         log_uar_page_sz[0x10];
 
-	u8         reserved_67[0x20];
+	u8         reserved_at_49f[0x20];
 	u8         device_frequency_mhz[0x20];
 	u8         device_frequency_khz[0x20];
-	u8         reserved_68[0x5f];
+	u8         reserved_at_4ff[0x5f];
 	u8         cqe_zip[0x1];
 
 	u8         cqe_zip_timeout[0x10];
 	u8         cqe_zip_max_num[0x10];
 
-	u8         reserved_69[0x220];
+	u8         reserved_at_57f[0x220];
 };
 
 enum mlx5_flow_destination_type {
@@ -880,7 +880,7 @@ struct mlx5_ifc_dest_format_struct_bits {
 	u8         destination_type[0x8];
 	u8         destination_id[0x18];
 
-	u8         reserved_0[0x20];
+	u8         reserved_at_20[0x20];
 };
 
 struct mlx5_ifc_fte_match_param_bits {
@@ -890,7 +890,7 @@ struct mlx5_ifc_fte_match_param_bits {
 
 	struct mlx5_ifc_fte_match_set_lyr_2_4_bits inner_headers;
 
-	u8         reserved_0[0xa00];
+	u8         reserved_at_600[0xa00];
 };
 
 enum {
@@ -922,18 +922,18 @@ struct mlx5_ifc_wq_bits {
 	u8         wq_signature[0x1];
 	u8         end_padding_mode[0x2];
 	u8         cd_slave[0x1];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         hds_skip_first_sge[0x1];
 	u8         log2_hds_buf_size[0x3];
-	u8         reserved_1[0x7];
+	u8         reserved_at_24[0x7];
 	u8         page_offset[0x5];
 	u8         lwm[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         pd[0x18];
 
-	u8         reserved_3[0x8];
+	u8         reserved_at_60[0x8];
 	u8         uar_page[0x18];
 
 	u8         dbr_addr[0x40];
@@ -942,60 +942,60 @@ struct mlx5_ifc_wq_bits {
 
 	u8         sw_counter[0x20];
 
-	u8         reserved_4[0xc];
+	u8         reserved_at_100[0xc];
 	u8         log_wq_stride[0x4];
-	u8         reserved_5[0x3];
+	u8         reserved_at_110[0x3];
 	u8         log_wq_pg_sz[0x5];
-	u8         reserved_6[0x3];
+	u8         reserved_at_118[0x3];
 	u8         log_wq_sz[0x5];
 
-	u8         reserved_7[0x4e0];
+	u8         reserved_at_120[0x4e0];
 
 	struct mlx5_ifc_cmd_pas_bits pas[0];
 };
 
 struct mlx5_ifc_rq_num_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         rq_num[0x18];
 };
 
 struct mlx5_ifc_mac_address_layout_bits {
-	u8         reserved_0[0x10];
+	u8         reserved_at_0[0x10];
 	u8         mac_addr_47_32[0x10];
 
 	u8         mac_addr_31_0[0x20];
 };
 
 struct mlx5_ifc_vlan_layout_bits {
-	u8         reserved_0[0x14];
+	u8         reserved_at_0[0x14];
 	u8         vlan[0x0c];
 
-	u8         reserved_1[0x20];
+	u8         reserved_at_20[0x20];
 };
 
 struct mlx5_ifc_cong_control_r_roce_ecn_np_bits {
-	u8         reserved_0[0xa0];
+	u8         reserved_at_0[0xa0];
 
 	u8         min_time_between_cnps[0x20];
 
-	u8         reserved_1[0x12];
+	u8         reserved_at_c0[0x12];
 	u8         cnp_dscp[0x6];
-	u8         reserved_2[0x5];
+	u8         reserved_at_d8[0x5];
 	u8         cnp_802p_prio[0x3];
 
-	u8         reserved_3[0x720];
+	u8         reserved_at_e0[0x720];
 };
 
 struct mlx5_ifc_cong_control_r_roce_ecn_rp_bits {
-	u8         reserved_0[0x60];
+	u8         reserved_at_0[0x60];
 
-	u8         reserved_1[0x4];
+	u8         reserved_at_60[0x4];
 	u8         clamp_tgt_rate[0x1];
-	u8         reserved_2[0x3];
+	u8         reserved_at_65[0x3];
 	u8         clamp_tgt_rate_after_time_inc[0x1];
-	u8         reserved_3[0x17];
+	u8         reserved_at_69[0x17];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_80[0x20];
 
 	u8         rpg_time_reset[0x20];
 
@@ -1015,7 +1015,7 @@ struct mlx5_ifc_cong_control_r_roce_ecn_rp_bits {
 
 	u8         rpg_min_rate[0x20];
 
-	u8         reserved_5[0xe0];
+	u8         reserved_at_1c0[0xe0];
 
 	u8         rate_to_set_on_first_cnp[0x20];
 
@@ -1025,15 +1025,15 @@ struct mlx5_ifc_cong_control_r_roce_ecn_rp_bits {
 
 	u8         rate_reduce_monitor_period[0x20];
 
-	u8         reserved_6[0x20];
+	u8         reserved_at_320[0x20];
 
 	u8         initial_alpha_value[0x20];
 
-	u8         reserved_7[0x4a0];
+	u8         reserved_at_360[0x4a0];
 };
 
 struct mlx5_ifc_cong_control_802_1qau_rp_bits {
-	u8         reserved_0[0x80];
+	u8         reserved_at_0[0x80];
 
 	u8         rppp_max_rps[0x20];
 
@@ -1055,7 +1055,7 @@ struct mlx5_ifc_cong_control_802_1qau_rp_bits {
 
 	u8         rpg_min_rate[0x20];
 
-	u8         reserved_1[0x640];
+	u8         reserved_at_1c0[0x640];
 };
 
 enum {
@@ -1205,7 +1205,7 @@ struct mlx5_ifc_phys_layer_cntrs_bits {
 
 	u8         successful_recovery_events[0x20];
 
-	u8         reserved_0[0x180];
+	u8         reserved_at_640[0x180];
 };
 
 struct mlx5_ifc_eth_per_traffic_grp_data_layout_bits {
@@ -1213,7 +1213,7 @@ struct mlx5_ifc_eth_per_traffic_grp_data_layout_bits {
 
 	u8         transmit_queue_low[0x20];
 
-	u8         reserved_0[0x780];
+	u8         reserved_at_40[0x780];
 };
 
 struct mlx5_ifc_eth_per_prio_grp_data_layout_bits {
@@ -1221,7 +1221,7 @@ struct mlx5_ifc_eth_per_prio_grp_data_layout_bits {
 
 	u8         rx_octets_low[0x20];
 
-	u8         reserved_0[0xc0];
+	u8         reserved_at_40[0xc0];
 
 	u8         rx_frames_high[0x20];
 
@@ -1231,7 +1231,7 @@ struct mlx5_ifc_eth_per_prio_grp_data_layout_bits {
 
 	u8         tx_octets_low[0x20];
 
-	u8         reserved_1[0xc0];
+	u8         reserved_at_180[0xc0];
 
 	u8         tx_frames_high[0x20];
 
@@ -1257,7 +1257,7 @@ struct mlx5_ifc_eth_per_prio_grp_data_layout_bits {
 
 	u8         rx_pause_transition_low[0x20];
 
-	u8         reserved_2[0x400];
+	u8         reserved_at_3c0[0x400];
 };
 
 struct mlx5_ifc_eth_extended_cntrs_grp_data_layout_bits {
@@ -1265,7 +1265,7 @@ struct mlx5_ifc_eth_extended_cntrs_grp_data_layout_bits {
 
 	u8         port_transmit_wait_low[0x20];
 
-	u8         reserved_0[0x780];
+	u8         reserved_at_40[0x780];
 };
 
 struct mlx5_ifc_eth_3635_cntrs_grp_data_layout_bits {
@@ -1333,7 +1333,7 @@ struct mlx5_ifc_eth_3635_cntrs_grp_data_layout_bits {
 
 	u8         dot3out_pause_frames_low[0x20];
 
-	u8         reserved_0[0x3c0];
+	u8         reserved_at_400[0x3c0];
 };
 
 struct mlx5_ifc_eth_2819_cntrs_grp_data_layout_bits {
@@ -1421,7 +1421,7 @@ struct mlx5_ifc_eth_2819_cntrs_grp_data_layout_bits {
 
 	u8         ether_stats_pkts8192to10239octets_low[0x20];
 
-	u8         reserved_0[0x280];
+	u8         reserved_at_540[0x280];
 };
 
 struct mlx5_ifc_eth_2863_cntrs_grp_data_layout_bits {
@@ -1477,7 +1477,7 @@ struct mlx5_ifc_eth_2863_cntrs_grp_data_layout_bits {
 
 	u8         if_out_broadcast_pkts_low[0x20];
 
-	u8         reserved_0[0x480];
+	u8         reserved_at_340[0x480];
 };
 
 struct mlx5_ifc_eth_802_3_cntrs_grp_data_layout_bits {
@@ -1557,54 +1557,54 @@ struct mlx5_ifc_eth_802_3_cntrs_grp_data_layout_bits {
 
 	u8         a_pause_mac_ctrl_frames_transmitted_low[0x20];
 
-	u8         reserved_0[0x300];
+	u8         reserved_at_4c0[0x300];
 };
 
 struct mlx5_ifc_cmd_inter_comp_event_bits {
 	u8         command_completion_vector[0x20];
 
-	u8         reserved_0[0xc0];
+	u8         reserved_at_20[0xc0];
 };
 
 struct mlx5_ifc_stall_vl_event_bits {
-	u8         reserved_0[0x18];
+	u8         reserved_at_0[0x18];
 	u8         port_num[0x1];
-	u8         reserved_1[0x3];
+	u8         reserved_at_19[0x3];
 	u8         vl[0x4];
 
-	u8         reserved_2[0xa0];
+	u8         reserved_at_20[0xa0];
 };
 
 struct mlx5_ifc_db_bf_congestion_event_bits {
 	u8         event_subtype[0x8];
-	u8         reserved_0[0x8];
+	u8         reserved_at_8[0x8];
 	u8         congestion_level[0x8];
-	u8         reserved_1[0x8];
+	u8         reserved_at_18[0x8];
 
-	u8         reserved_2[0xa0];
+	u8         reserved_at_20[0xa0];
 };
 
 struct mlx5_ifc_gpio_event_bits {
-	u8         reserved_0[0x60];
+	u8         reserved_at_0[0x60];
 
 	u8         gpio_event_hi[0x20];
 
 	u8         gpio_event_lo[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_a0[0x40];
 };
 
 struct mlx5_ifc_port_state_change_event_bits {
-	u8         reserved_0[0x40];
+	u8         reserved_at_0[0x40];
 
 	u8         port_num[0x4];
-	u8         reserved_1[0x1c];
+	u8         reserved_at_44[0x1c];
 
-	u8         reserved_2[0x80];
+	u8         reserved_at_60[0x80];
 };
 
 struct mlx5_ifc_dropped_packet_logged_bits {
-	u8         reserved_0[0xe0];
+	u8         reserved_at_0[0xe0];
 };
 
 enum {
@@ -1613,15 +1613,15 @@ enum {
 };
 
 struct mlx5_ifc_cq_error_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         cqn[0x18];
 
-	u8         reserved_1[0x20];
+	u8         reserved_at_20[0x20];
 
-	u8         reserved_2[0x18];
+	u8         reserved_at_40[0x18];
 	u8         syndrome[0x8];
 
-	u8         reserved_3[0x80];
+	u8         reserved_at_60[0x80];
 };
 
 struct mlx5_ifc_rdma_page_fault_event_bits {
@@ -1629,14 +1629,14 @@ struct mlx5_ifc_rdma_page_fault_event_bits {
 
 	u8         r_key[0x20];
 
-	u8         reserved_0[0x10];
+	u8         reserved_at_40[0x10];
 	u8         packet_len[0x10];
 
 	u8         rdma_op_len[0x20];
 
 	u8         rdma_va[0x40];
 
-	u8         reserved_1[0x5];
+	u8         reserved_at_c0[0x5];
 	u8         rdma[0x1];
 	u8         write[0x1];
 	u8         requestor[0x1];
@@ -1646,15 +1646,15 @@ struct mlx5_ifc_rdma_page_fault_event_bits {
 struct mlx5_ifc_wqe_associated_page_fault_event_bits {
 	u8         bytes_committed[0x20];
 
-	u8         reserved_0[0x10];
+	u8         reserved_at_20[0x10];
 	u8         wqe_index[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_40[0x10];
 	u8         len[0x10];
 
-	u8         reserved_2[0x60];
+	u8         reserved_at_60[0x60];
 
-	u8         reserved_3[0x5];
+	u8         reserved_at_c0[0x5];
 	u8         rdma[0x1];
 	u8         write_read[0x1];
 	u8         requestor[0x1];
@@ -1662,26 +1662,26 @@ struct mlx5_ifc_wqe_associated_page_fault_event_bits {
 };
 
 struct mlx5_ifc_qp_events_bits {
-	u8         reserved_0[0xa0];
+	u8         reserved_at_0[0xa0];
 
 	u8         type[0x8];
-	u8         reserved_1[0x18];
+	u8         reserved_at_a8[0x18];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_c0[0x8];
 	u8         qpn_rqn_sqn[0x18];
 };
 
 struct mlx5_ifc_dct_events_bits {
-	u8         reserved_0[0xc0];
+	u8         reserved_at_0[0xc0];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_c0[0x8];
 	u8         dct_number[0x18];
 };
 
 struct mlx5_ifc_comp_event_bits {
-	u8         reserved_0[0xc0];
+	u8         reserved_at_0[0xc0];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_c0[0x8];
 	u8         cq_number[0x18];
 };
 
@@ -1754,41 +1754,41 @@ enum {
 
 struct mlx5_ifc_qpc_bits {
 	u8         state[0x4];
-	u8         reserved_0[0x4];
+	u8         reserved_at_4[0x4];
 	u8         st[0x8];
-	u8         reserved_1[0x3];
+	u8         reserved_at_10[0x3];
 	u8         pm_state[0x2];
-	u8         reserved_2[0x7];
+	u8         reserved_at_15[0x7];
 	u8         end_padding_mode[0x2];
-	u8         reserved_3[0x2];
+	u8         reserved_at_1e[0x2];
 
 	u8         wq_signature[0x1];
 	u8         block_lb_mc[0x1];
 	u8         atomic_like_write_en[0x1];
 	u8         latency_sensitive[0x1];
-	u8         reserved_4[0x1];
+	u8         reserved_at_24[0x1];
 	u8         drain_sigerr[0x1];
-	u8         reserved_5[0x2];
+	u8         reserved_at_26[0x2];
 	u8         pd[0x18];
 
 	u8         mtu[0x3];
 	u8         log_msg_max[0x5];
-	u8         reserved_6[0x1];
+	u8         reserved_at_48[0x1];
 	u8         log_rq_size[0x4];
 	u8         log_rq_stride[0x3];
 	u8         no_sq[0x1];
 	u8         log_sq_size[0x4];
-	u8         reserved_7[0x6];
+	u8         reserved_at_55[0x6];
 	u8         rlky[0x1];
-	u8         reserved_8[0x4];
+	u8         reserved_at_5c[0x4];
 
 	u8         counter_set_id[0x8];
 	u8         uar_page[0x18];
 
-	u8         reserved_9[0x8];
+	u8         reserved_at_80[0x8];
 	u8         user_index[0x18];
 
-	u8         reserved_10[0x3];
+	u8         reserved_at_a0[0x3];
 	u8         log_page_size[0x5];
 	u8         remote_qpn[0x18];
 
@@ -1797,66 +1797,66 @@ struct mlx5_ifc_qpc_bits {
 	struct mlx5_ifc_ads_bits secondary_address_path;
 
 	u8         log_ack_req_freq[0x4];
-	u8         reserved_11[0x4];
+	u8         reserved_at_384[0x4];
 	u8         log_sra_max[0x3];
-	u8         reserved_12[0x2];
+	u8         reserved_at_38b[0x2];
 	u8         retry_count[0x3];
 	u8         rnr_retry[0x3];
-	u8         reserved_13[0x1];
+	u8         reserved_at_393[0x1];
 	u8         fre[0x1];
 	u8         cur_rnr_retry[0x3];
 	u8         cur_retry_count[0x3];
-	u8         reserved_14[0x5];
+	u8         reserved_at_39b[0x5];
 
-	u8         reserved_15[0x20];
+	u8         reserved_at_3a0[0x20];
 
-	u8         reserved_16[0x8];
+	u8         reserved_at_3c0[0x8];
 	u8         next_send_psn[0x18];
 
-	u8         reserved_17[0x8];
+	u8         reserved_at_3e0[0x8];
 	u8         cqn_snd[0x18];
 
-	u8         reserved_18[0x40];
+	u8         reserved_at_400[0x40];
 
-	u8         reserved_19[0x8];
+	u8         reserved_at_440[0x8];
 	u8         last_acked_psn[0x18];
 
-	u8         reserved_20[0x8];
+	u8         reserved_at_460[0x8];
 	u8         ssn[0x18];
 
-	u8         reserved_21[0x8];
+	u8         reserved_at_480[0x8];
 	u8         log_rra_max[0x3];
-	u8         reserved_22[0x1];
+	u8         reserved_at_48b[0x1];
 	u8         atomic_mode[0x4];
 	u8         rre[0x1];
 	u8         rwe[0x1];
 	u8         rae[0x1];
-	u8         reserved_23[0x1];
+	u8         reserved_at_493[0x1];
 	u8         page_offset[0x6];
-	u8         reserved_24[0x3];
+	u8         reserved_at_49a[0x3];
 	u8         cd_slave_receive[0x1];
 	u8         cd_slave_send[0x1];
 	u8         cd_master[0x1];
 
-	u8         reserved_25[0x3];
+	u8         reserved_at_4a0[0x3];
 	u8         min_rnr_nak[0x5];
 	u8         next_rcv_psn[0x18];
 
-	u8         reserved_26[0x8];
+	u8         reserved_at_4c0[0x8];
 	u8         xrcd[0x18];
 
-	u8         reserved_27[0x8];
+	u8         reserved_at_4e0[0x8];
 	u8         cqn_rcv[0x18];
 
 	u8         dbr_addr[0x40];
 
 	u8         q_key[0x20];
 
-	u8         reserved_28[0x5];
+	u8         reserved_at_560[0x5];
 	u8         rq_type[0x3];
 	u8         srqn_rmpn[0x18];
 
-	u8         reserved_29[0x8];
+	u8         reserved_at_580[0x8];
 	u8         rmsn[0x18];
 
 	u8         hw_sq_wqebb_counter[0x10];
@@ -1866,33 +1866,33 @@ struct mlx5_ifc_qpc_bits {
 
 	u8         sw_rq_counter[0x20];
 
-	u8         reserved_30[0x20];
+	u8         reserved_at_600[0x20];
 
-	u8         reserved_31[0xf];
+	u8         reserved_at_620[0xf];
 	u8         cgs[0x1];
 	u8         cs_req[0x8];
 	u8         cs_res[0x8];
 
 	u8         dc_access_key[0x40];
 
-	u8         reserved_32[0xc0];
+	u8         reserved_at_680[0xc0];
 };
 
 struct mlx5_ifc_roce_addr_layout_bits {
 	u8         source_l3_address[16][0x8];
 
-	u8         reserved_0[0x3];
+	u8         reserved_at_80[0x3];
 	u8         vlan_valid[0x1];
 	u8         vlan_id[0xc];
 	u8         source_mac_47_32[0x10];
 
 	u8         source_mac_31_0[0x20];
 
-	u8         reserved_1[0x14];
+	u8         reserved_at_c0[0x14];
 	u8         roce_l3_type[0x4];
 	u8         roce_version[0x8];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_e0[0x20];
 };
 
 union mlx5_ifc_hca_cap_union_bits {
@@ -1904,7 +1904,7 @@ union mlx5_ifc_hca_cap_union_bits {
 	struct mlx5_ifc_flow_table_nic_cap_bits flow_table_nic_cap;
 	struct mlx5_ifc_flow_table_eswitch_cap_bits flow_table_eswitch_cap;
 	struct mlx5_ifc_e_switch_cap_bits e_switch_cap;
-	u8         reserved_0[0x8000];
+	u8         reserved_at_0[0x8000];
 };
 
 enum {
@@ -1914,24 +1914,24 @@ enum {
 };
 
 struct mlx5_ifc_flow_context_bits {
-	u8         reserved_0[0x20];
+	u8         reserved_at_0[0x20];
 
 	u8         group_id[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         flow_tag[0x18];
 
-	u8         reserved_2[0x10];
+	u8         reserved_at_60[0x10];
 	u8         action[0x10];
 
-	u8         reserved_3[0x8];
+	u8         reserved_at_80[0x8];
 	u8         destination_list_size[0x18];
 
-	u8         reserved_4[0x160];
+	u8         reserved_at_a0[0x160];
 
 	struct mlx5_ifc_fte_match_param_bits match_value;
 
-	u8         reserved_5[0x600];
+	u8         reserved_at_1200[0x600];
 
 	struct mlx5_ifc_dest_format_struct_bits destination[0];
 };
@@ -1944,43 +1944,43 @@ enum {
 struct mlx5_ifc_xrc_srqc_bits {
 	u8         state[0x4];
 	u8         log_xrc_srq_size[0x4];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         wq_signature[0x1];
 	u8         cont_srq[0x1];
-	u8         reserved_1[0x1];
+	u8         reserved_at_22[0x1];
 	u8         rlky[0x1];
 	u8         basic_cyclic_rcv_wqe[0x1];
 	u8         log_rq_stride[0x3];
 	u8         xrcd[0x18];
 
 	u8         page_offset[0x6];
-	u8         reserved_2[0x2];
+	u8         reserved_at_46[0x2];
 	u8         cqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         user_index_equal_xrc_srqn[0x1];
-	u8         reserved_4[0x1];
+	u8         reserved_at_81[0x1];
 	u8         log_page_size[0x6];
 	u8         user_index[0x18];
 
-	u8         reserved_5[0x20];
+	u8         reserved_at_a0[0x20];
 
-	u8         reserved_6[0x8];
+	u8         reserved_at_c0[0x8];
 	u8         pd[0x18];
 
 	u8         lwm[0x10];
 	u8         wqe_cnt[0x10];
 
-	u8         reserved_7[0x40];
+	u8         reserved_at_100[0x40];
 
 	u8         db_record_addr_h[0x20];
 
 	u8         db_record_addr_l[0x1e];
-	u8         reserved_8[0x2];
+	u8         reserved_at_17e[0x2];
 
-	u8         reserved_9[0x80];
+	u8         reserved_at_180[0x80];
 };
 
 struct mlx5_ifc_traffic_counter_bits {
@@ -1990,16 +1990,16 @@ struct mlx5_ifc_traffic_counter_bits {
 };
 
 struct mlx5_ifc_tisc_bits {
-	u8         reserved_0[0xc];
+	u8         reserved_at_0[0xc];
 	u8         prio[0x4];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_2[0x100];
+	u8         reserved_at_20[0x100];
 
-	u8         reserved_3[0x8];
+	u8         reserved_at_120[0x8];
 	u8         transport_domain[0x18];
 
-	u8         reserved_4[0x3c0];
+	u8         reserved_at_140[0x3c0];
 };
 
 enum {
@@ -2024,31 +2024,31 @@ enum {
 };
 
 struct mlx5_ifc_tirc_bits {
-	u8         reserved_0[0x20];
+	u8         reserved_at_0[0x20];
 
 	u8         disp_type[0x4];
-	u8         reserved_1[0x1c];
+	u8         reserved_at_24[0x1c];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
-	u8         reserved_3[0x4];
+	u8         reserved_at_80[0x4];
 	u8         lro_timeout_period_usecs[0x10];
 	u8         lro_enable_mask[0x4];
 	u8         lro_max_ip_payload_size[0x8];
 
-	u8         reserved_4[0x40];
+	u8         reserved_at_a0[0x40];
 
-	u8         reserved_5[0x8];
+	u8         reserved_at_e0[0x8];
 	u8         inline_rqn[0x18];
 
 	u8         rx_hash_symmetric[0x1];
-	u8         reserved_6[0x1];
+	u8         reserved_at_101[0x1];
 	u8         tunneled_offload_en[0x1];
-	u8         reserved_7[0x5];
+	u8         reserved_at_103[0x5];
 	u8         indirect_table[0x18];
 
 	u8         rx_hash_fn[0x4];
-	u8         reserved_8[0x2];
+	u8         reserved_at_124[0x2];
 	u8         self_lb_block[0x2];
 	u8         transport_domain[0x18];
 
@@ -2058,7 +2058,7 @@ struct mlx5_ifc_tirc_bits {
 
 	struct mlx5_ifc_rx_hash_field_select_bits rx_hash_field_selector_inner;
 
-	u8         reserved_9[0x4c0];
+	u8         reserved_at_2c0[0x4c0];
 };
 
 enum {
@@ -2069,39 +2069,39 @@ enum {
 struct mlx5_ifc_srqc_bits {
 	u8         state[0x4];
 	u8         log_srq_size[0x4];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         wq_signature[0x1];
 	u8         cont_srq[0x1];
-	u8         reserved_1[0x1];
+	u8         reserved_at_22[0x1];
 	u8         rlky[0x1];
-	u8         reserved_2[0x1];
+	u8         reserved_at_24[0x1];
 	u8         log_rq_stride[0x3];
 	u8         xrcd[0x18];
 
 	u8         page_offset[0x6];
-	u8         reserved_3[0x2];
+	u8         reserved_at_46[0x2];
 	u8         cqn[0x18];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_60[0x20];
 
-	u8         reserved_5[0x2];
+	u8         reserved_at_80[0x2];
 	u8         log_page_size[0x6];
-	u8         reserved_6[0x18];
+	u8         reserved_at_88[0x18];
 
-	u8         reserved_7[0x20];
+	u8         reserved_at_a0[0x20];
 
-	u8         reserved_8[0x8];
+	u8         reserved_at_c0[0x8];
 	u8         pd[0x18];
 
 	u8         lwm[0x10];
 	u8         wqe_cnt[0x10];
 
-	u8         reserved_9[0x40];
+	u8         reserved_at_100[0x40];
 
 	u8         dbr_addr[0x40];
 
-	u8         reserved_10[0x80];
+	u8         reserved_at_180[0x80];
 };
 
 enum {
@@ -2115,39 +2115,39 @@ struct mlx5_ifc_sqc_bits {
 	u8         cd_master[0x1];
 	u8         fre[0x1];
 	u8         flush_in_error_en[0x1];
-	u8         reserved_0[0x4];
+	u8         reserved_at_4[0x4];
 	u8         state[0x4];
-	u8         reserved_1[0x14];
+	u8         reserved_at_c[0x14];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_20[0x8];
 	u8         user_index[0x18];
 
-	u8         reserved_3[0x8];
+	u8         reserved_at_40[0x8];
 	u8         cqn[0x18];
 
-	u8         reserved_4[0xa0];
+	u8         reserved_at_60[0xa0];
 
 	u8         tis_lst_sz[0x10];
-	u8         reserved_5[0x10];
+	u8         reserved_at_110[0x10];
 
-	u8         reserved_6[0x40];
+	u8         reserved_at_120[0x40];
 
-	u8         reserved_7[0x8];
+	u8         reserved_at_160[0x8];
 	u8         tis_num_0[0x18];
 
 	struct mlx5_ifc_wq_bits wq;
 };
 
 struct mlx5_ifc_rqtc_bits {
-	u8         reserved_0[0xa0];
+	u8         reserved_at_0[0xa0];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_a0[0x10];
 	u8         rqt_max_size[0x10];
 
-	u8         reserved_2[0x10];
+	u8         reserved_at_c0[0x10];
 	u8         rqt_actual_size[0x10];
 
-	u8         reserved_3[0x6a0];
+	u8         reserved_at_e0[0x6a0];
 
 	struct mlx5_ifc_rq_num_bits rq_num[0];
 };
@@ -2165,27 +2165,27 @@ enum {
 
 struct mlx5_ifc_rqc_bits {
 	u8         rlky[0x1];
-	u8         reserved_0[0x2];
+	u8         reserved_at_1[0x2];
 	u8         vsd[0x1];
 	u8         mem_rq_type[0x4];
 	u8         state[0x4];
-	u8         reserved_1[0x1];
+	u8         reserved_at_c[0x1];
 	u8         flush_in_error_en[0x1];
-	u8         reserved_2[0x12];
+	u8         reserved_at_e[0x12];
 
-	u8         reserved_3[0x8];
+	u8         reserved_at_20[0x8];
 	u8         user_index[0x18];
 
-	u8         reserved_4[0x8];
+	u8         reserved_at_40[0x8];
 	u8         cqn[0x18];
 
 	u8         counter_set_id[0x8];
-	u8         reserved_5[0x18];
+	u8         reserved_at_68[0x18];
 
-	u8         reserved_6[0x8];
+	u8         reserved_at_80[0x8];
 	u8         rmpn[0x18];
 
-	u8         reserved_7[0xe0];
+	u8         reserved_at_a0[0xe0];
 
 	struct mlx5_ifc_wq_bits wq;
 };
@@ -2196,31 +2196,31 @@ enum {
 };
 
 struct mlx5_ifc_rmpc_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         state[0x4];
-	u8         reserved_1[0x14];
+	u8         reserved_at_c[0x14];
 
 	u8         basic_cyclic_rcv_wqe[0x1];
-	u8         reserved_2[0x1f];
+	u8         reserved_at_21[0x1f];
 
-	u8         reserved_3[0x140];
+	u8         reserved_at_40[0x140];
 
 	struct mlx5_ifc_wq_bits wq;
 };
 
 struct mlx5_ifc_nic_vport_context_bits {
-	u8         reserved_0[0x1f];
+	u8         reserved_at_0[0x1f];
 	u8         roce_en[0x1];
 
 	u8         arm_change_event[0x1];
-	u8         reserved_1[0x1a];
+	u8         reserved_at_21[0x1a];
 	u8         event_on_mtu[0x1];
 	u8         event_on_promisc_change[0x1];
 	u8         event_on_vlan_change[0x1];
 	u8         event_on_mc_address_change[0x1];
 	u8         event_on_uc_address_change[0x1];
 
-	u8         reserved_2[0xf0];
+	u8         reserved_at_40[0xf0];
 
 	u8         mtu[0x10];
 
@@ -2228,21 +2228,21 @@ struct mlx5_ifc_nic_vport_context_bits {
 	u8         port_guid[0x40];
 	u8         node_guid[0x40];
 
-	u8         reserved_3[0x140];
+	u8         reserved_at_200[0x140];
 	u8         qkey_violation_counter[0x10];
-	u8         reserved_4[0x430];
+	u8         reserved_at_350[0x430];
 
 	u8         promisc_uc[0x1];
 	u8         promisc_mc[0x1];
 	u8         promisc_all[0x1];
-	u8         reserved_5[0x2];
+	u8         reserved_at_783[0x2];
 	u8         allowed_list_type[0x3];
-	u8         reserved_6[0xc];
+	u8         reserved_at_788[0xc];
 	u8         allowed_list_size[0xc];
 
 	struct mlx5_ifc_mac_address_layout_bits permanent_address;
 
-	u8         reserved_7[0x20];
+	u8         reserved_at_7e0[0x20];
 
 	u8         current_uc_mac_address[0][0x40];
 };
@@ -2254,9 +2254,9 @@ enum {
 };
 
 struct mlx5_ifc_mkc_bits {
-	u8         reserved_0[0x1];
+	u8         reserved_at_0[0x1];
 	u8         free[0x1];
-	u8         reserved_1[0xd];
+	u8         reserved_at_2[0xd];
 	u8         small_fence_on_rdma_read_response[0x1];
 	u8         umr_en[0x1];
 	u8         a[0x1];
@@ -2265,19 +2265,19 @@ struct mlx5_ifc_mkc_bits {
 	u8         lw[0x1];
 	u8         lr[0x1];
 	u8         access_mode[0x2];
-	u8         reserved_2[0x8];
+	u8         reserved_at_18[0x8];
 
 	u8         qpn[0x18];
 	u8         mkey_7_0[0x8];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_40[0x20];
 
 	u8         length64[0x1];
 	u8         bsf_en[0x1];
 	u8         sync_umr[0x1];
-	u8         reserved_4[0x2];
+	u8         reserved_at_63[0x2];
 	u8         expected_sigerr_count[0x1];
-	u8         reserved_5[0x1];
+	u8         reserved_at_66[0x1];
 	u8         en_rinval[0x1];
 	u8         pd[0x18];
 
@@ -2287,18 +2287,18 @@ struct mlx5_ifc_mkc_bits {
 
 	u8         bsf_octword_size[0x20];
 
-	u8         reserved_6[0x80];
+	u8         reserved_at_120[0x80];
 
 	u8         translations_octword_size[0x20];
 
-	u8         reserved_7[0x1b];
+	u8         reserved_at_1c0[0x1b];
 	u8         log_page_size[0x5];
 
-	u8         reserved_8[0x20];
+	u8         reserved_at_1e0[0x20];
 };
 
 struct mlx5_ifc_pkey_bits {
-	u8         reserved_0[0x10];
+	u8         reserved_at_0[0x10];
 	u8         pkey[0x10];
 };
 
@@ -2309,19 +2309,19 @@ struct mlx5_ifc_array128_auto_bits {
 struct mlx5_ifc_hca_vport_context_bits {
 	u8         field_select[0x20];
 
-	u8         reserved_0[0xe0];
+	u8         reserved_at_20[0xe0];
 
 	u8         sm_virt_aware[0x1];
 	u8         has_smi[0x1];
 	u8         has_raw[0x1];
 	u8         grh_required[0x1];
-	u8         reserved_1[0xc];
+	u8         reserved_at_104[0xc];
 	u8         port_physical_state[0x4];
 	u8         vport_state_policy[0x4];
 	u8         port_state[0x4];
 	u8         vport_state[0x4];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_120[0x20];
 
 	u8         system_image_guid[0x40];
 
@@ -2337,33 +2337,33 @@ struct mlx5_ifc_hca_vport_context_bits {
 
 	u8         cap_mask2_field_select[0x20];
 
-	u8         reserved_3[0x80];
+	u8         reserved_at_280[0x80];
 
 	u8         lid[0x10];
-	u8         reserved_4[0x4];
+	u8         reserved_at_310[0x4];
 	u8         init_type_reply[0x4];
 	u8         lmc[0x3];
 	u8         subnet_timeout[0x5];
 
 	u8         sm_lid[0x10];
 	u8         sm_sl[0x4];
-	u8         reserved_5[0xc];
+	u8         reserved_at_334[0xc];
 
 	u8         qkey_violation_counter[0x10];
 	u8         pkey_violation_counter[0x10];
 
-	u8         reserved_6[0xca0];
+	u8         reserved_at_360[0xca0];
 };
 
 struct mlx5_ifc_esw_vport_context_bits {
-	u8         reserved_0[0x3];
+	u8         reserved_at_0[0x3];
 	u8         vport_svlan_strip[0x1];
 	u8         vport_cvlan_strip[0x1];
 	u8         vport_svlan_insert[0x1];
 	u8         vport_cvlan_insert[0x2];
-	u8         reserved_1[0x18];
+	u8         reserved_at_8[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_20[0x20];
 
 	u8         svlan_cfi[0x1];
 	u8         svlan_pcp[0x3];
@@ -2372,7 +2372,7 @@ struct mlx5_ifc_esw_vport_context_bits {
 	u8         cvlan_pcp[0x3];
 	u8         cvlan_id[0xc];
 
-	u8         reserved_3[0x7a0];
+	u8         reserved_at_60[0x7a0];
 };
 
 enum {
@@ -2387,41 +2387,41 @@ enum {
 
 struct mlx5_ifc_eqc_bits {
 	u8         status[0x4];
-	u8         reserved_0[0x9];
+	u8         reserved_at_4[0x9];
 	u8         ec[0x1];
 	u8         oi[0x1];
-	u8         reserved_1[0x5];
+	u8         reserved_at_f[0x5];
 	u8         st[0x4];
-	u8         reserved_2[0x8];
+	u8         reserved_at_18[0x8];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_20[0x20];
 
-	u8         reserved_4[0x14];
+	u8         reserved_at_40[0x14];
 	u8         page_offset[0x6];
-	u8         reserved_5[0x6];
+	u8         reserved_at_5a[0x6];
 
-	u8         reserved_6[0x3];
+	u8         reserved_at_60[0x3];
 	u8         log_eq_size[0x5];
 	u8         uar_page[0x18];
 
-	u8         reserved_7[0x20];
+	u8         reserved_at_80[0x20];
 
-	u8         reserved_8[0x18];
+	u8         reserved_at_a0[0x18];
 	u8         intr[0x8];
 
-	u8         reserved_9[0x3];
+	u8         reserved_at_c0[0x3];
 	u8         log_page_size[0x5];
-	u8         reserved_10[0x18];
+	u8         reserved_at_c8[0x18];
 
-	u8         reserved_11[0x60];
+	u8         reserved_at_e0[0x60];
 
-	u8         reserved_12[0x8];
+	u8         reserved_at_140[0x8];
 	u8         consumer_counter[0x18];
 
-	u8         reserved_13[0x8];
+	u8         reserved_at_160[0x8];
 	u8         producer_counter[0x18];
 
-	u8         reserved_14[0x80];
+	u8         reserved_at_180[0x80];
 };
 
 enum {
@@ -2445,14 +2445,14 @@ enum {
 };
 
 struct mlx5_ifc_dctc_bits {
-	u8         reserved_0[0x4];
+	u8         reserved_at_0[0x4];
 	u8         state[0x4];
-	u8         reserved_1[0x18];
+	u8         reserved_at_8[0x18];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_20[0x8];
 	u8         user_index[0x18];
 
-	u8         reserved_3[0x8];
+	u8         reserved_at_40[0x8];
 	u8         cqn[0x18];
 
 	u8         counter_set_id[0x8];
@@ -2464,45 +2464,45 @@ struct mlx5_ifc_dctc_bits {
 	u8         latency_sensitive[0x1];
 	u8         rlky[0x1];
 	u8         free_ar[0x1];
-	u8         reserved_4[0xd];
+	u8         reserved_at_73[0xd];
 
-	u8         reserved_5[0x8];
+	u8         reserved_at_80[0x8];
 	u8         cs_res[0x8];
-	u8         reserved_6[0x3];
+	u8         reserved_at_90[0x3];
 	u8         min_rnr_nak[0x5];
-	u8         reserved_7[0x8];
+	u8         reserved_at_98[0x8];
 
-	u8         reserved_8[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         srqn[0x18];
 
-	u8         reserved_9[0x8];
+	u8         reserved_at_c0[0x8];
 	u8         pd[0x18];
 
 	u8         tclass[0x8];
-	u8         reserved_10[0x4];
+	u8         reserved_at_e8[0x4];
 	u8         flow_label[0x14];
 
 	u8         dc_access_key[0x40];
 
-	u8         reserved_11[0x5];
+	u8         reserved_at_140[0x5];
 	u8         mtu[0x3];
 	u8         port[0x8];
 	u8         pkey_index[0x10];
 
-	u8         reserved_12[0x8];
+	u8         reserved_at_160[0x8];
 	u8         my_addr_index[0x8];
-	u8         reserved_13[0x8];
+	u8         reserved_at_170[0x8];
 	u8         hop_limit[0x8];
 
 	u8         dc_access_key_violation_count[0x20];
 
-	u8         reserved_14[0x14];
+	u8         reserved_at_1a0[0x14];
 	u8         dei_cfi[0x1];
 	u8         eth_prio[0x3];
 	u8         ecn[0x2];
 	u8         dscp[0x6];
 
-	u8         reserved_15[0x40];
+	u8         reserved_at_1c0[0x40];
 };
 
 enum {
@@ -2524,54 +2524,54 @@ enum {
 
 struct mlx5_ifc_cqc_bits {
 	u8         status[0x4];
-	u8         reserved_0[0x4];
+	u8         reserved_at_4[0x4];
 	u8         cqe_sz[0x3];
 	u8         cc[0x1];
-	u8         reserved_1[0x1];
+	u8         reserved_at_c[0x1];
 	u8         scqe_break_moderation_en[0x1];
 	u8         oi[0x1];
-	u8         reserved_2[0x2];
+	u8         reserved_at_f[0x2];
 	u8         cqe_zip_en[0x1];
 	u8         mini_cqe_res_format[0x2];
 	u8         st[0x4];
-	u8         reserved_3[0x8];
+	u8         reserved_at_18[0x8];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_20[0x20];
 
-	u8         reserved_5[0x14];
+	u8         reserved_at_40[0x14];
 	u8         page_offset[0x6];
-	u8         reserved_6[0x6];
+	u8         reserved_at_5a[0x6];
 
-	u8         reserved_7[0x3];
+	u8         reserved_at_60[0x3];
 	u8         log_cq_size[0x5];
 	u8         uar_page[0x18];
 
-	u8         reserved_8[0x4];
+	u8         reserved_at_80[0x4];
 	u8         cq_period[0xc];
 	u8         cq_max_count[0x10];
 
-	u8         reserved_9[0x18];
+	u8         reserved_at_a0[0x18];
 	u8         c_eqn[0x8];
 
-	u8         reserved_10[0x3];
+	u8         reserved_at_c0[0x3];
 	u8         log_page_size[0x5];
-	u8         reserved_11[0x18];
+	u8         reserved_at_c8[0x18];
 
-	u8         reserved_12[0x20];
+	u8         reserved_at_e0[0x20];
 
-	u8         reserved_13[0x8];
+	u8         reserved_at_100[0x8];
 	u8         last_notified_index[0x18];
 
-	u8         reserved_14[0x8];
+	u8         reserved_at_120[0x8];
 	u8         last_solicit_index[0x18];
 
-	u8         reserved_15[0x8];
+	u8         reserved_at_140[0x8];
 	u8         consumer_counter[0x18];
 
-	u8         reserved_16[0x8];
+	u8         reserved_at_160[0x8];
 	u8         producer_counter[0x18];
 
-	u8         reserved_17[0x40];
+	u8         reserved_at_180[0x40];
 
 	u8         dbr_addr[0x40];
 };
@@ -2580,16 +2580,16 @@ union mlx5_ifc_cong_control_roce_ecn_auto_bits {
 	struct mlx5_ifc_cong_control_802_1qau_rp_bits cong_control_802_1qau_rp;
 	struct mlx5_ifc_cong_control_r_roce_ecn_rp_bits cong_control_r_roce_ecn_rp;
 	struct mlx5_ifc_cong_control_r_roce_ecn_np_bits cong_control_r_roce_ecn_np;
-	u8         reserved_0[0x800];
+	u8         reserved_at_0[0x800];
 };
 
 struct mlx5_ifc_query_adapter_param_block_bits {
-	u8         reserved_0[0xc0];
+	u8         reserved_at_0[0xc0];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_c0[0x8];
 	u8         ieee_vendor_id[0x18];
 
-	u8         reserved_2[0x10];
+	u8         reserved_at_e0[0x10];
 	u8         vsd_vendor_id[0x10];
 
 	u8         vsd[208][0x8];
@@ -2600,14 +2600,14 @@ struct mlx5_ifc_query_adapter_param_block_bits {
 union mlx5_ifc_modify_field_select_resize_field_select_auto_bits {
 	struct mlx5_ifc_modify_field_select_bits modify_field_select;
 	struct mlx5_ifc_resize_field_select_bits resize_field_select;
-	u8         reserved_0[0x20];
+	u8         reserved_at_0[0x20];
 };
 
 union mlx5_ifc_field_select_802_1_r_roce_auto_bits {
 	struct mlx5_ifc_field_select_802_1qau_rp_bits field_select_802_1qau_rp;
 	struct mlx5_ifc_field_select_r_roce_rp_bits field_select_r_roce_rp;
 	struct mlx5_ifc_field_select_r_roce_np_bits field_select_r_roce_np;
-	u8         reserved_0[0x20];
+	u8         reserved_at_0[0x20];
 };
 
 union mlx5_ifc_eth_cntrs_grp_data_layout_auto_bits {
@@ -2619,7 +2619,7 @@ union mlx5_ifc_eth_cntrs_grp_data_layout_auto_bits {
 	struct mlx5_ifc_eth_per_prio_grp_data_layout_bits eth_per_prio_grp_data_layout;
 	struct mlx5_ifc_eth_per_traffic_grp_data_layout_bits eth_per_traffic_grp_data_layout;
 	struct mlx5_ifc_phys_layer_cntrs_bits phys_layer_cntrs;
-	u8         reserved_0[0x7c0];
+	u8         reserved_at_0[0x7c0];
 };
 
 union mlx5_ifc_event_auto_bits {
@@ -2635,23 +2635,23 @@ union mlx5_ifc_event_auto_bits {
 	struct mlx5_ifc_db_bf_congestion_event_bits db_bf_congestion_event;
 	struct mlx5_ifc_stall_vl_event_bits stall_vl_event;
 	struct mlx5_ifc_cmd_inter_comp_event_bits cmd_inter_comp_event;
-	u8         reserved_0[0xe0];
+	u8         reserved_at_0[0xe0];
 };
 
 struct mlx5_ifc_health_buffer_bits {
-	u8         reserved_0[0x100];
+	u8         reserved_at_0[0x100];
 
 	u8         assert_existptr[0x20];
 
 	u8         assert_callra[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_140[0x40];
 
 	u8         fw_version[0x20];
 
 	u8         hw_id[0x20];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_1c0[0x20];
 
 	u8         irisc_index[0x8];
 	u8         synd[0x8];
@@ -2660,20 +2660,20 @@ struct mlx5_ifc_health_buffer_bits {
 
 struct mlx5_ifc_register_loopback_control_bits {
 	u8         no_lb[0x1];
-	u8         reserved_0[0x7];
+	u8         reserved_at_1[0x7];
 	u8         port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_2[0x60];
+	u8         reserved_at_20[0x60];
 };
 
 struct mlx5_ifc_teardown_hca_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 enum {
@@ -2683,108 +2683,108 @@ enum {
 
 struct mlx5_ifc_teardown_hca_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x10];
+	u8         reserved_at_40[0x10];
 	u8         profile[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_sqerr2rts_qp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_sqerr2rts_qp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         opt_param_mask[0x20];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_a0[0x20];
 
 	struct mlx5_ifc_qpc_bits qpc;
 
-	u8         reserved_5[0x80];
+	u8         reserved_at_800[0x80];
 };
 
 struct mlx5_ifc_sqd2rts_qp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_sqd2rts_qp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         opt_param_mask[0x20];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_a0[0x20];
 
 	struct mlx5_ifc_qpc_bits qpc;
 
-	u8         reserved_5[0x80];
+	u8         reserved_at_800[0x80];
 };
 
 struct mlx5_ifc_set_roce_address_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_set_roce_address_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         roce_address_index[0x10];
-	u8         reserved_2[0x10];
+	u8         reserved_at_50[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	struct mlx5_ifc_roce_addr_layout_bits roce_address;
 };
 
 struct mlx5_ifc_set_mad_demux_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 enum {
@@ -2794,89 +2794,89 @@ enum {
 
 struct mlx5_ifc_set_mad_demux_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_40[0x20];
 
-	u8         reserved_3[0x6];
+	u8         reserved_at_60[0x6];
 	u8         demux_mode[0x2];
-	u8         reserved_4[0x18];
+	u8         reserved_at_68[0x18];
 };
 
 struct mlx5_ifc_set_l2_table_entry_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_set_l2_table_entry_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x60];
+	u8         reserved_at_40[0x60];
 
-	u8         reserved_3[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_index[0x18];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_c0[0x20];
 
-	u8         reserved_5[0x13];
+	u8         reserved_at_e0[0x13];
 	u8         vlan_valid[0x1];
 	u8         vlan[0xc];
 
 	struct mlx5_ifc_mac_address_layout_bits mac_address;
 
-	u8         reserved_6[0xc0];
+	u8         reserved_at_140[0xc0];
 };
 
 struct mlx5_ifc_set_issi_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_set_issi_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x10];
+	u8         reserved_at_40[0x10];
 	u8         current_issi[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_set_hca_cap_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_set_hca_cap_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	union mlx5_ifc_hca_cap_union_bits capability;
 };
@@ -2890,156 +2890,156 @@ enum {
 
 struct mlx5_ifc_set_fte_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_set_fte_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         table_type[0x8];
-	u8         reserved_3[0x18];
+	u8         reserved_at_88[0x18];
 
-	u8         reserved_4[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_id[0x18];
 
-	u8         reserved_5[0x18];
+	u8         reserved_at_c0[0x18];
 	u8         modify_enable_mask[0x8];
 
-	u8         reserved_6[0x20];
+	u8         reserved_at_e0[0x20];
 
 	u8         flow_index[0x20];
 
-	u8         reserved_7[0xe0];
+	u8         reserved_at_120[0xe0];
 
 	struct mlx5_ifc_flow_context_bits flow_context;
 };
 
 struct mlx5_ifc_rts2rts_qp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_rts2rts_qp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         opt_param_mask[0x20];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_a0[0x20];
 
 	struct mlx5_ifc_qpc_bits qpc;
 
-	u8         reserved_5[0x80];
+	u8         reserved_at_800[0x80];
 };
 
 struct mlx5_ifc_rtr2rts_qp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_rtr2rts_qp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         opt_param_mask[0x20];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_a0[0x20];
 
 	struct mlx5_ifc_qpc_bits qpc;
 
-	u8         reserved_5[0x80];
+	u8         reserved_at_800[0x80];
 };
 
 struct mlx5_ifc_rst2init_qp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_rst2init_qp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         opt_param_mask[0x20];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_a0[0x20];
 
 	struct mlx5_ifc_qpc_bits qpc;
 
-	u8         reserved_5[0x80];
+	u8         reserved_at_800[0x80];
 };
 
 struct mlx5_ifc_query_xrc_srq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_xrc_srqc_bits xrc_srq_context_entry;
 
-	u8         reserved_2[0x600];
+	u8         reserved_at_280[0x600];
 
 	u8         pas[0][0x40];
 };
 
 struct mlx5_ifc_query_xrc_srq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         xrc_srqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 enum {
@@ -3049,13 +3049,13 @@ enum {
 
 struct mlx5_ifc_query_vport_state_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x20];
+	u8         reserved_at_40[0x20];
 
-	u8         reserved_2[0x18];
+	u8         reserved_at_60[0x18];
 	u8         admin_state[0x4];
 	u8         state[0x4];
 };
@@ -3067,25 +3067,25 @@ enum {
 
 struct mlx5_ifc_query_vport_state_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         other_vport[0x1];
-	u8         reserved_2[0xf];
+	u8         reserved_at_41[0xf];
 	u8         vport_number[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_vport_counter_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_traffic_counter_bits received_errors;
 
@@ -3111,7 +3111,7 @@ struct mlx5_ifc_query_vport_counter_out_bits {
 
 	struct mlx5_ifc_traffic_counter_bits transmitted_eth_multicast;
 
-	u8         reserved_2[0xa00];
+	u8         reserved_at_680[0xa00];
 };
 
 enum {
@@ -3120,328 +3120,328 @@ enum {
 
 struct mlx5_ifc_query_vport_counter_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         other_vport[0x1];
-	u8         reserved_2[0xf];
+	u8         reserved_at_41[0xf];
 	u8         vport_number[0x10];
 
-	u8         reserved_3[0x60];
+	u8         reserved_at_60[0x60];
 
 	u8         clear[0x1];
-	u8         reserved_4[0x1f];
+	u8         reserved_at_c1[0x1f];
 
-	u8         reserved_5[0x20];
+	u8         reserved_at_e0[0x20];
 };
 
 struct mlx5_ifc_query_tis_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_tisc_bits tis_context;
 };
 
 struct mlx5_ifc_query_tis_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         tisn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_tir_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0xc0];
+	u8         reserved_at_40[0xc0];
 
 	struct mlx5_ifc_tirc_bits tir_context;
 };
 
 struct mlx5_ifc_query_tir_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         tirn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_srq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_srqc_bits srq_context_entry;
 
-	u8         reserved_2[0x600];
+	u8         reserved_at_280[0x600];
 
 	u8         pas[0][0x40];
 };
 
 struct mlx5_ifc_query_srq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         srqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_sq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0xc0];
+	u8         reserved_at_40[0xc0];
 
 	struct mlx5_ifc_sqc_bits sq_context;
 };
 
 struct mlx5_ifc_query_sq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         sqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_special_contexts_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x20];
+	u8         reserved_at_40[0x20];
 
 	u8         resd_lkey[0x20];
 };
 
 struct mlx5_ifc_query_special_contexts_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_query_rqt_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0xc0];
+	u8         reserved_at_40[0xc0];
 
 	struct mlx5_ifc_rqtc_bits rqt_context;
 };
 
 struct mlx5_ifc_query_rqt_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         rqtn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_rq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0xc0];
+	u8         reserved_at_40[0xc0];
 
 	struct mlx5_ifc_rqc_bits rq_context;
 };
 
 struct mlx5_ifc_query_rq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         rqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_roce_address_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_roce_addr_layout_bits roce_address;
 };
 
 struct mlx5_ifc_query_roce_address_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         roce_address_index[0x10];
-	u8         reserved_2[0x10];
+	u8         reserved_at_50[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_rmp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0xc0];
+	u8         reserved_at_40[0xc0];
 
 	struct mlx5_ifc_rmpc_bits rmp_context;
 };
 
 struct mlx5_ifc_query_rmp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         rmpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_qp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         opt_param_mask[0x20];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_a0[0x20];
 
 	struct mlx5_ifc_qpc_bits qpc;
 
-	u8         reserved_3[0x80];
+	u8         reserved_at_800[0x80];
 
 	u8         pas[0][0x40];
 };
 
 struct mlx5_ifc_query_qp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_q_counter_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         rx_write_requests[0x20];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_a0[0x20];
 
 	u8         rx_read_requests[0x20];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_e0[0x20];
 
 	u8         rx_atomic_requests[0x20];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_120[0x20];
 
 	u8         rx_dct_connect[0x20];
 
-	u8         reserved_5[0x20];
+	u8         reserved_at_160[0x20];
 
 	u8         out_of_buffer[0x20];
 
-	u8         reserved_6[0x20];
+	u8         reserved_at_1a0[0x20];
 
 	u8         out_of_sequence[0x20];
 
-	u8         reserved_7[0x620];
+	u8         reserved_at_1e0[0x620];
 };
 
 struct mlx5_ifc_query_q_counter_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x80];
+	u8         reserved_at_40[0x80];
 
 	u8         clear[0x1];
-	u8         reserved_3[0x1f];
+	u8         reserved_at_c1[0x1f];
 
-	u8         reserved_4[0x18];
+	u8         reserved_at_e0[0x18];
 	u8         counter_set_id[0x8];
 };
 
 struct mlx5_ifc_query_pages_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_40[0x10];
 	u8         function_id[0x10];
 
 	u8         num_pages[0x20];
@@ -3455,55 +3455,55 @@ enum {
 
 struct mlx5_ifc_query_pages_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x10];
+	u8         reserved_at_40[0x10];
 	u8         function_id[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_nic_vport_context_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_nic_vport_context_bits nic_vport_context;
 };
 
 struct mlx5_ifc_query_nic_vport_context_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         other_vport[0x1];
-	u8         reserved_2[0xf];
+	u8         reserved_at_41[0xf];
 	u8         vport_number[0x10];
 
-	u8         reserved_3[0x5];
+	u8         reserved_at_60[0x5];
 	u8         allowed_list_type[0x3];
-	u8         reserved_4[0x18];
+	u8         reserved_at_68[0x18];
 };
 
 struct mlx5_ifc_query_mkey_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_mkc_bits memory_key_mkey_entry;
 
-	u8         reserved_2[0x600];
+	u8         reserved_at_280[0x600];
 
 	u8         bsf0_klm0_pas_mtt0_1[16][0x8];
 
@@ -3512,265 +3512,265 @@ struct mlx5_ifc_query_mkey_out_bits {
 
 struct mlx5_ifc_query_mkey_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         mkey_index[0x18];
 
 	u8         pg_access[0x1];
-	u8         reserved_3[0x1f];
+	u8         reserved_at_61[0x1f];
 };
 
 struct mlx5_ifc_query_mad_demux_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         mad_dumux_parameters_block[0x20];
 };
 
 struct mlx5_ifc_query_mad_demux_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_query_l2_table_entry_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0xa0];
+	u8         reserved_at_40[0xa0];
 
-	u8         reserved_2[0x13];
+	u8         reserved_at_e0[0x13];
 	u8         vlan_valid[0x1];
 	u8         vlan[0xc];
 
 	struct mlx5_ifc_mac_address_layout_bits mac_address;
 
-	u8         reserved_3[0xc0];
+	u8         reserved_at_140[0xc0];
 };
 
 struct mlx5_ifc_query_l2_table_entry_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x60];
+	u8         reserved_at_40[0x60];
 
-	u8         reserved_3[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_index[0x18];
 
-	u8         reserved_4[0x140];
+	u8         reserved_at_c0[0x140];
 };
 
 struct mlx5_ifc_query_issi_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_40[0x10];
 	u8         current_issi[0x10];
 
-	u8         reserved_2[0xa0];
+	u8         reserved_at_60[0xa0];
 
-	u8         supported_issi_reserved[76][0x8];
+	u8         reserved_at_100[76][0x8];
 	u8         supported_issi_dw0[0x20];
 };
 
 struct mlx5_ifc_query_issi_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_query_hca_vport_pkey_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_pkey_bits pkey[0];
 };
 
 struct mlx5_ifc_query_hca_vport_pkey_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         other_vport[0x1];
-	u8         reserved_2[0xb];
+	u8         reserved_at_41[0xb];
 	u8         port_num[0x4];
 	u8         vport_number[0x10];
 
-	u8         reserved_3[0x10];
+	u8         reserved_at_60[0x10];
 	u8         pkey_index[0x10];
 };
 
 struct mlx5_ifc_query_hca_vport_gid_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x20];
+	u8         reserved_at_40[0x20];
 
 	u8         gids_num[0x10];
-	u8         reserved_2[0x10];
+	u8         reserved_at_70[0x10];
 
 	struct mlx5_ifc_array128_auto_bits gid[0];
 };
 
 struct mlx5_ifc_query_hca_vport_gid_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         other_vport[0x1];
-	u8         reserved_2[0xb];
+	u8         reserved_at_41[0xb];
 	u8         port_num[0x4];
 	u8         vport_number[0x10];
 
-	u8         reserved_3[0x10];
+	u8         reserved_at_60[0x10];
 	u8         gid_index[0x10];
 };
 
 struct mlx5_ifc_query_hca_vport_context_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_hca_vport_context_bits hca_vport_context;
 };
 
 struct mlx5_ifc_query_hca_vport_context_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         other_vport[0x1];
-	u8         reserved_2[0xb];
+	u8         reserved_at_41[0xb];
 	u8         port_num[0x4];
 	u8         vport_number[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_hca_cap_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	union mlx5_ifc_hca_cap_union_bits capability;
 };
 
 struct mlx5_ifc_query_hca_cap_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_query_flow_table_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x80];
+	u8         reserved_at_40[0x80];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_c0[0x8];
 	u8         level[0x8];
-	u8         reserved_3[0x8];
+	u8         reserved_at_d0[0x8];
 	u8         log_size[0x8];
 
-	u8         reserved_4[0x120];
+	u8         reserved_at_e0[0x120];
 };
 
 struct mlx5_ifc_query_flow_table_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         table_type[0x8];
-	u8         reserved_3[0x18];
+	u8         reserved_at_88[0x18];
 
-	u8         reserved_4[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_id[0x18];
 
-	u8         reserved_5[0x140];
+	u8         reserved_at_c0[0x140];
 };
 
 struct mlx5_ifc_query_fte_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x1c0];
+	u8         reserved_at_40[0x1c0];
 
 	struct mlx5_ifc_flow_context_bits flow_context;
 };
 
 struct mlx5_ifc_query_fte_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         table_type[0x8];
-	u8         reserved_3[0x18];
+	u8         reserved_at_88[0x18];
 
-	u8         reserved_4[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_id[0x18];
 
-	u8         reserved_5[0x40];
+	u8         reserved_at_c0[0x40];
 
 	u8         flow_index[0x20];
 
-	u8         reserved_6[0xe0];
+	u8         reserved_at_120[0xe0];
 };
 
 enum {
@@ -3781,84 +3781,84 @@ enum {
 
 struct mlx5_ifc_query_flow_group_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0xa0];
+	u8         reserved_at_40[0xa0];
 
 	u8         start_flow_index[0x20];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_100[0x20];
 
 	u8         end_flow_index[0x20];
 
-	u8         reserved_3[0xa0];
+	u8         reserved_at_140[0xa0];
 
-	u8         reserved_4[0x18];
+	u8         reserved_at_1e0[0x18];
 	u8         match_criteria_enable[0x8];
 
 	struct mlx5_ifc_fte_match_param_bits match_criteria;
 
-	u8         reserved_5[0xe00];
+	u8         reserved_at_1200[0xe00];
 };
 
 struct mlx5_ifc_query_flow_group_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         table_type[0x8];
-	u8         reserved_3[0x18];
+	u8         reserved_at_88[0x18];
 
-	u8         reserved_4[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_id[0x18];
 
 	u8         group_id[0x20];
 
-	u8         reserved_5[0x120];
+	u8         reserved_at_e0[0x120];
 };
 
 struct mlx5_ifc_query_esw_vport_context_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_esw_vport_context_bits esw_vport_context;
 };
 
 struct mlx5_ifc_query_esw_vport_context_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         other_vport[0x1];
-	u8         reserved_2[0xf];
+	u8         reserved_at_41[0xf];
 	u8         vport_number[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_modify_esw_vport_context_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_esw_vport_context_fields_select_bits {
-	u8         reserved[0x1c];
+	u8         reserved_at_0[0x1c];
 	u8         vport_cvlan_insert[0x1];
 	u8         vport_svlan_insert[0x1];
 	u8         vport_cvlan_strip[0x1];
@@ -3867,13 +3867,13 @@ struct mlx5_ifc_esw_vport_context_fields_select_bits {
 
 struct mlx5_ifc_modify_esw_vport_context_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         other_vport[0x1];
-	u8         reserved_2[0xf];
+	u8         reserved_at_41[0xf];
 	u8         vport_number[0x10];
 
 	struct mlx5_ifc_esw_vport_context_fields_select_bits field_select;
@@ -3883,124 +3883,124 @@ struct mlx5_ifc_modify_esw_vport_context_in_bits {
 
 struct mlx5_ifc_query_eq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_eqc_bits eq_context_entry;
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_280[0x40];
 
 	u8         event_bitmask[0x40];
 
-	u8         reserved_3[0x580];
+	u8         reserved_at_300[0x580];
 
 	u8         pas[0][0x40];
 };
 
 struct mlx5_ifc_query_eq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x18];
+	u8         reserved_at_40[0x18];
 	u8         eq_number[0x8];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_dct_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_dctc_bits dct_context_entry;
 
-	u8         reserved_2[0x180];
+	u8         reserved_at_280[0x180];
 };
 
 struct mlx5_ifc_query_dct_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         dctn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_cq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_cqc_bits cq_context;
 
-	u8         reserved_2[0x600];
+	u8         reserved_at_280[0x600];
 
 	u8         pas[0][0x40];
 };
 
 struct mlx5_ifc_query_cq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         cqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_cong_status_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x20];
+	u8         reserved_at_40[0x20];
 
 	u8         enable[0x1];
 	u8         tag_enable[0x1];
-	u8         reserved_2[0x1e];
+	u8         reserved_at_62[0x1e];
 };
 
 struct mlx5_ifc_query_cong_status_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x18];
+	u8         reserved_at_40[0x18];
 	u8         priority[0x4];
 	u8         cong_protocol[0x4];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_cong_statistics_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         cur_flows[0x20];
 
@@ -4014,7 +4014,7 @@ struct mlx5_ifc_query_cong_statistics_out_bits {
 
 	u8         cnp_handled_low[0x20];
 
-	u8         reserved_2[0x100];
+	u8         reserved_at_140[0x100];
 
 	u8         time_stamp_high[0x20];
 
@@ -4030,453 +4030,453 @@ struct mlx5_ifc_query_cong_statistics_out_bits {
 
 	u8         cnps_sent_low[0x20];
 
-	u8         reserved_3[0x560];
+	u8         reserved_at_320[0x560];
 };
 
 struct mlx5_ifc_query_cong_statistics_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         clear[0x1];
-	u8         reserved_2[0x1f];
+	u8         reserved_at_41[0x1f];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_cong_params_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	union mlx5_ifc_cong_control_roce_ecn_auto_bits congestion_parameters;
 };
 
 struct mlx5_ifc_query_cong_params_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x1c];
+	u8         reserved_at_40[0x1c];
 	u8         cong_protocol[0x4];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_query_adapter_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_query_adapter_param_block_bits query_adapter_struct;
 };
 
 struct mlx5_ifc_query_adapter_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_qp_2rst_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_qp_2rst_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_qp_2err_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_qp_2err_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_page_fault_resume_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_page_fault_resume_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         error[0x1];
-	u8         reserved_2[0x4];
+	u8         reserved_at_41[0x4];
 	u8         rdma[0x1];
 	u8         read_write[0x1];
 	u8         req_res[0x1];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_nop_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_nop_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_modify_vport_state_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_modify_vport_state_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         other_vport[0x1];
-	u8         reserved_2[0xf];
+	u8         reserved_at_41[0xf];
 	u8         vport_number[0x10];
 
-	u8         reserved_3[0x18];
+	u8         reserved_at_60[0x18];
 	u8         admin_state[0x4];
-	u8         reserved_4[0x4];
+	u8         reserved_at_7c[0x4];
 };
 
 struct mlx5_ifc_modify_tis_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_modify_tis_bitmask_bits {
-	u8         reserved_0[0x20];
+	u8         reserved_at_0[0x20];
 
-	u8         reserved_1[0x1f];
+	u8         reserved_at_20[0x1f];
 	u8         prio[0x1];
 };
 
 struct mlx5_ifc_modify_tis_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         tisn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	struct mlx5_ifc_modify_tis_bitmask_bits bitmask;
 
-	u8         reserved_4[0x40];
+	u8         reserved_at_c0[0x40];
 
 	struct mlx5_ifc_tisc_bits ctx;
 };
 
 struct mlx5_ifc_modify_tir_bitmask_bits {
-	u8	   reserved_0[0x20];
+	u8	   reserved_at_0[0x20];
 
-	u8         reserved_1[0x1b];
+	u8         reserved_at_20[0x1b];
 	u8         self_lb_en[0x1];
-	u8         reserved_2[0x3];
+	u8         reserved_at_3c[0x3];
 	u8         lro[0x1];
 };
 
 struct mlx5_ifc_modify_tir_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_modify_tir_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         tirn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	struct mlx5_ifc_modify_tir_bitmask_bits bitmask;
 
-	u8         reserved_4[0x40];
+	u8         reserved_at_c0[0x40];
 
 	struct mlx5_ifc_tirc_bits ctx;
 };
 
 struct mlx5_ifc_modify_sq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_modify_sq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         sq_state[0x4];
-	u8         reserved_2[0x4];
+	u8         reserved_at_44[0x4];
 	u8         sqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         modify_bitmask[0x40];
 
-	u8         reserved_4[0x40];
+	u8         reserved_at_c0[0x40];
 
 	struct mlx5_ifc_sqc_bits ctx;
 };
 
 struct mlx5_ifc_modify_rqt_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_rqt_bitmask_bits {
-	u8	   reserved[0x20];
+	u8	   reserved_at_0[0x20];
 
-	u8         reserved1[0x1f];
+	u8         reserved_at_20[0x1f];
 	u8         rqn_list[0x1];
 };
 
 struct mlx5_ifc_modify_rqt_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         rqtn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	struct mlx5_ifc_rqt_bitmask_bits bitmask;
 
-	u8         reserved_4[0x40];
+	u8         reserved_at_c0[0x40];
 
 	struct mlx5_ifc_rqtc_bits ctx;
 };
 
 struct mlx5_ifc_modify_rq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_modify_rq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         rq_state[0x4];
-	u8         reserved_2[0x4];
+	u8         reserved_at_44[0x4];
 	u8         rqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         modify_bitmask[0x40];
 
-	u8         reserved_4[0x40];
+	u8         reserved_at_c0[0x40];
 
 	struct mlx5_ifc_rqc_bits ctx;
 };
 
 struct mlx5_ifc_modify_rmp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_rmp_bitmask_bits {
-	u8	   reserved[0x20];
+	u8	   reserved_at_0[0x20];
 
-	u8         reserved1[0x1f];
+	u8         reserved_at_20[0x1f];
 	u8         lwm[0x1];
 };
 
 struct mlx5_ifc_modify_rmp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         rmp_state[0x4];
-	u8         reserved_2[0x4];
+	u8         reserved_at_44[0x4];
 	u8         rmpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	struct mlx5_ifc_rmp_bitmask_bits bitmask;
 
-	u8         reserved_4[0x40];
+	u8         reserved_at_c0[0x40];
 
 	struct mlx5_ifc_rmpc_bits ctx;
 };
 
 struct mlx5_ifc_modify_nic_vport_context_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_modify_nic_vport_field_select_bits {
-	u8         reserved_0[0x19];
+	u8         reserved_at_0[0x19];
 	u8         mtu[0x1];
 	u8         change_event[0x1];
 	u8         promisc[0x1];
 	u8         permanent_address[0x1];
 	u8         addresses_list[0x1];
 	u8         roce_en[0x1];
-	u8         reserved_1[0x1];
+	u8         reserved_at_1f[0x1];
 };
 
 struct mlx5_ifc_modify_nic_vport_context_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         other_vport[0x1];
-	u8         reserved_2[0xf];
+	u8         reserved_at_41[0xf];
 	u8         vport_number[0x10];
 
 	struct mlx5_ifc_modify_nic_vport_field_select_bits field_select;
 
-	u8         reserved_3[0x780];
+	u8         reserved_at_80[0x780];
 
 	struct mlx5_ifc_nic_vport_context_bits nic_vport_context;
 };
 
 struct mlx5_ifc_modify_hca_vport_context_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_modify_hca_vport_context_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         other_vport[0x1];
-	u8         reserved_2[0xb];
+	u8         reserved_at_41[0xb];
 	u8         port_num[0x4];
 	u8         vport_number[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	struct mlx5_ifc_hca_vport_context_bits hca_vport_context;
 };
 
 struct mlx5_ifc_modify_cq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 enum {
@@ -4486,83 +4486,83 @@ enum {
 
 struct mlx5_ifc_modify_cq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         cqn[0x18];
 
 	union mlx5_ifc_modify_field_select_resize_field_select_auto_bits modify_field_select_resize_field_select;
 
 	struct mlx5_ifc_cqc_bits cq_context;
 
-	u8         reserved_3[0x600];
+	u8         reserved_at_280[0x600];
 
 	u8         pas[0][0x40];
 };
 
 struct mlx5_ifc_modify_cong_status_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_modify_cong_status_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x18];
+	u8         reserved_at_40[0x18];
 	u8         priority[0x4];
 	u8         cong_protocol[0x4];
 
 	u8         enable[0x1];
 	u8         tag_enable[0x1];
-	u8         reserved_3[0x1e];
+	u8         reserved_at_62[0x1e];
 };
 
 struct mlx5_ifc_modify_cong_params_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_modify_cong_params_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x1c];
+	u8         reserved_at_40[0x1c];
 	u8         cong_protocol[0x4];
 
 	union mlx5_ifc_field_select_802_1_r_roce_auto_bits field_select;
 
-	u8         reserved_3[0x80];
+	u8         reserved_at_80[0x80];
 
 	union mlx5_ifc_cong_control_roce_ecn_auto_bits congestion_parameters;
 };
 
 struct mlx5_ifc_manage_pages_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
 	u8         output_num_entries[0x20];
 
-	u8         reserved_1[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         pas[0][0x40];
 };
@@ -4575,12 +4575,12 @@ enum {
 
 struct mlx5_ifc_manage_pages_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x10];
+	u8         reserved_at_40[0x10];
 	u8         function_id[0x10];
 
 	u8         input_num_entries[0x20];
@@ -4590,117 +4590,117 @@ struct mlx5_ifc_manage_pages_in_bits {
 
 struct mlx5_ifc_mad_ifc_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         response_mad_packet[256][0x8];
 };
 
 struct mlx5_ifc_mad_ifc_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         remote_lid[0x10];
-	u8         reserved_2[0x8];
+	u8         reserved_at_50[0x8];
 	u8         port[0x8];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         mad[256][0x8];
 };
 
 struct mlx5_ifc_init_hca_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_init_hca_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_init2rtr_qp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_init2rtr_qp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         opt_param_mask[0x20];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_a0[0x20];
 
 	struct mlx5_ifc_qpc_bits qpc;
 
-	u8         reserved_5[0x80];
+	u8         reserved_at_800[0x80];
 };
 
 struct mlx5_ifc_init2init_qp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_init2init_qp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         opt_param_mask[0x20];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_a0[0x20];
 
 	struct mlx5_ifc_qpc_bits qpc;
 
-	u8         reserved_5[0x80];
+	u8         reserved_at_800[0x80];
 };
 
 struct mlx5_ifc_get_dropped_packet_log_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         packet_headers_log[128][0x8];
 
@@ -4709,1029 +4709,1029 @@ struct mlx5_ifc_get_dropped_packet_log_out_bits {
 
 struct mlx5_ifc_get_dropped_packet_log_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_gen_eqe_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x18];
+	u8         reserved_at_40[0x18];
 	u8         eq_number[0x8];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         eqe[64][0x8];
 };
 
 struct mlx5_ifc_gen_eq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_enable_hca_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x20];
+	u8         reserved_at_40[0x20];
 };
 
 struct mlx5_ifc_enable_hca_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x10];
+	u8         reserved_at_40[0x10];
 	u8         function_id[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_drain_dct_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_drain_dct_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         dctn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_disable_hca_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x20];
+	u8         reserved_at_40[0x20];
 };
 
 struct mlx5_ifc_disable_hca_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x10];
+	u8         reserved_at_40[0x10];
 	u8         function_id[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_detach_from_mcg_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_detach_from_mcg_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         multicast_gid[16][0x8];
 };
 
 struct mlx5_ifc_destroy_xrc_srq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_xrc_srq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         xrc_srqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_tis_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_tis_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         tisn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_tir_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_tir_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         tirn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_srq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_srq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         srqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_sq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_sq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         sqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_rqt_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_rqt_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         rqtn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_rq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_rq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         rqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_rmp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_rmp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         rmpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_qp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_qp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_psv_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_psv_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         psvn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_mkey_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_mkey_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         mkey_index[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_flow_table_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_flow_table_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         table_type[0x8];
-	u8         reserved_3[0x18];
+	u8         reserved_at_88[0x18];
 
-	u8         reserved_4[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_id[0x18];
 
-	u8         reserved_5[0x140];
+	u8         reserved_at_c0[0x140];
 };
 
 struct mlx5_ifc_destroy_flow_group_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_flow_group_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         table_type[0x8];
-	u8         reserved_3[0x18];
+	u8         reserved_at_88[0x18];
 
-	u8         reserved_4[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_id[0x18];
 
 	u8         group_id[0x20];
 
-	u8         reserved_5[0x120];
+	u8         reserved_at_e0[0x120];
 };
 
 struct mlx5_ifc_destroy_eq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_eq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x18];
+	u8         reserved_at_40[0x18];
 	u8         eq_number[0x8];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_dct_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_dct_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         dctn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_destroy_cq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_destroy_cq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         cqn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_delete_vxlan_udp_dport_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_delete_vxlan_udp_dport_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_40[0x20];
 
-	u8         reserved_3[0x10];
+	u8         reserved_at_60[0x10];
 	u8         vxlan_udp_port[0x10];
 };
 
 struct mlx5_ifc_delete_l2_table_entry_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_delete_l2_table_entry_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x60];
+	u8         reserved_at_40[0x60];
 
-	u8         reserved_3[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_index[0x18];
 
-	u8         reserved_4[0x140];
+	u8         reserved_at_c0[0x140];
 };
 
 struct mlx5_ifc_delete_fte_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_delete_fte_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         table_type[0x8];
-	u8         reserved_3[0x18];
+	u8         reserved_at_88[0x18];
 
-	u8         reserved_4[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_id[0x18];
 
-	u8         reserved_5[0x40];
+	u8         reserved_at_c0[0x40];
 
 	u8         flow_index[0x20];
 
-	u8         reserved_6[0xe0];
+	u8         reserved_at_120[0xe0];
 };
 
 struct mlx5_ifc_dealloc_xrcd_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_dealloc_xrcd_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         xrcd[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_dealloc_uar_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_dealloc_uar_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         uar[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_dealloc_transport_domain_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_dealloc_transport_domain_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         transport_domain[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_dealloc_q_counter_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_dealloc_q_counter_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x18];
+	u8         reserved_at_40[0x18];
 	u8         counter_set_id[0x8];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_dealloc_pd_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_dealloc_pd_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         pd[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_xrc_srq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         xrc_srqn[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_xrc_srq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_xrc_srqc_bits xrc_srq_context_entry;
 
-	u8         reserved_3[0x600];
+	u8         reserved_at_280[0x600];
 
 	u8         pas[0][0x40];
 };
 
 struct mlx5_ifc_create_tis_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         tisn[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_tis_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0xc0];
+	u8         reserved_at_40[0xc0];
 
 	struct mlx5_ifc_tisc_bits ctx;
 };
 
 struct mlx5_ifc_create_tir_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         tirn[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_tir_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0xc0];
+	u8         reserved_at_40[0xc0];
 
 	struct mlx5_ifc_tirc_bits ctx;
 };
 
 struct mlx5_ifc_create_srq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         srqn[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_srq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_srqc_bits srq_context_entry;
 
-	u8         reserved_3[0x600];
+	u8         reserved_at_280[0x600];
 
 	u8         pas[0][0x40];
 };
 
 struct mlx5_ifc_create_sq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         sqn[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_sq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0xc0];
+	u8         reserved_at_40[0xc0];
 
 	struct mlx5_ifc_sqc_bits ctx;
 };
 
 struct mlx5_ifc_create_rqt_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         rqtn[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_rqt_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0xc0];
+	u8         reserved_at_40[0xc0];
 
 	struct mlx5_ifc_rqtc_bits rqt_context;
 };
 
 struct mlx5_ifc_create_rq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         rqn[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_rq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0xc0];
+	u8         reserved_at_40[0xc0];
 
 	struct mlx5_ifc_rqc_bits ctx;
 };
 
 struct mlx5_ifc_create_rmp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         rmpn[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_rmp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0xc0];
+	u8         reserved_at_40[0xc0];
 
 	struct mlx5_ifc_rmpc_bits ctx;
 };
 
 struct mlx5_ifc_create_qp_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_qp_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         opt_param_mask[0x20];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_a0[0x20];
 
 	struct mlx5_ifc_qpc_bits qpc;
 
-	u8         reserved_4[0x80];
+	u8         reserved_at_800[0x80];
 
 	u8         pas[0][0x40];
 };
 
 struct mlx5_ifc_create_psv_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_80[0x8];
 	u8         psv0_index[0x18];
 
-	u8         reserved_3[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         psv1_index[0x18];
 
-	u8         reserved_4[0x8];
+	u8         reserved_at_c0[0x8];
 	u8         psv2_index[0x18];
 
-	u8         reserved_5[0x8];
+	u8         reserved_at_e0[0x8];
 	u8         psv3_index[0x18];
 };
 
 struct mlx5_ifc_create_psv_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         num_psv[0x4];
-	u8         reserved_2[0x4];
+	u8         reserved_at_44[0x4];
 	u8         pd[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_mkey_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         mkey_index[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_mkey_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_40[0x20];
 
 	u8         pg_access[0x1];
-	u8         reserved_3[0x1f];
+	u8         reserved_at_61[0x1f];
 
 	struct mlx5_ifc_mkc_bits memory_key_mkey_entry;
 
-	u8         reserved_4[0x80];
+	u8         reserved_at_280[0x80];
 
 	u8         translations_octword_actual_size[0x20];
 
-	u8         reserved_5[0x560];
+	u8         reserved_at_320[0x560];
 
 	u8         klm_pas_mtt[0][0x20];
 };
 
 struct mlx5_ifc_create_flow_table_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         table_id[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_flow_table_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         table_type[0x8];
-	u8         reserved_3[0x18];
+	u8         reserved_at_88[0x18];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_a0[0x20];
 
-	u8         reserved_5[0x4];
+	u8         reserved_at_c0[0x4];
 	u8         table_miss_mode[0x4];
 	u8         level[0x8];
-	u8         reserved_6[0x8];
+	u8         reserved_at_d0[0x8];
 	u8         log_size[0x8];
 
-	u8         reserved_7[0x8];
+	u8         reserved_at_e0[0x8];
 	u8         table_miss_id[0x18];
 
-	u8         reserved_8[0x100];
+	u8         reserved_at_100[0x100];
 };
 
 struct mlx5_ifc_create_flow_group_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         group_id[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 enum {
@@ -5742,134 +5742,134 @@ enum {
 
 struct mlx5_ifc_create_flow_group_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         table_type[0x8];
-	u8         reserved_3[0x18];
+	u8         reserved_at_88[0x18];
 
-	u8         reserved_4[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_id[0x18];
 
-	u8         reserved_5[0x20];
+	u8         reserved_at_c0[0x20];
 
 	u8         start_flow_index[0x20];
 
-	u8         reserved_6[0x20];
+	u8         reserved_at_100[0x20];
 
 	u8         end_flow_index[0x20];
 
-	u8         reserved_7[0xa0];
+	u8         reserved_at_140[0xa0];
 
-	u8         reserved_8[0x18];
+	u8         reserved_at_1e0[0x18];
 	u8         match_criteria_enable[0x8];
 
 	struct mlx5_ifc_fte_match_param_bits match_criteria;
 
-	u8         reserved_9[0xe00];
+	u8         reserved_at_1200[0xe00];
 };
 
 struct mlx5_ifc_create_eq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x18];
+	u8         reserved_at_40[0x18];
 	u8         eq_number[0x8];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_eq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_eqc_bits eq_context_entry;
 
-	u8         reserved_3[0x40];
+	u8         reserved_at_280[0x40];
 
 	u8         event_bitmask[0x40];
 
-	u8         reserved_4[0x580];
+	u8         reserved_at_300[0x580];
 
 	u8         pas[0][0x40];
 };
 
 struct mlx5_ifc_create_dct_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         dctn[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_dct_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_dctc_bits dct_context_entry;
 
-	u8         reserved_3[0x180];
+	u8         reserved_at_280[0x180];
 };
 
 struct mlx5_ifc_create_cq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         cqn[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_create_cq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	struct mlx5_ifc_cqc_bits cq_context;
 
-	u8         reserved_3[0x600];
+	u8         reserved_at_280[0x600];
 
 	u8         pas[0][0x40];
 };
 
 struct mlx5_ifc_config_int_moderation_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x4];
+	u8         reserved_at_40[0x4];
 	u8         min_delay[0xc];
 	u8         int_vector[0x10];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 enum {
@@ -5879,49 +5879,49 @@ enum {
 
 struct mlx5_ifc_config_int_moderation_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x4];
+	u8         reserved_at_40[0x4];
 	u8         min_delay[0xc];
 	u8         int_vector[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_attach_to_mcg_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_attach_to_mcg_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         qpn[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 
 	u8         multicast_gid[16][0x8];
 };
 
 struct mlx5_ifc_arm_xrc_srq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 enum {
@@ -5930,25 +5930,25 @@ enum {
 
 struct mlx5_ifc_arm_xrc_srq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         xrc_srqn[0x18];
 
-	u8         reserved_3[0x10];
+	u8         reserved_at_60[0x10];
 	u8         lwm[0x10];
 };
 
 struct mlx5_ifc_arm_rq_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 enum {
@@ -5957,179 +5957,179 @@ enum {
 
 struct mlx5_ifc_arm_rq_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         srq_number[0x18];
 
-	u8         reserved_3[0x10];
+	u8         reserved_at_60[0x10];
 	u8         lwm[0x10];
 };
 
 struct mlx5_ifc_arm_dct_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_arm_dct_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_40[0x8];
 	u8         dct_number[0x18];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_alloc_xrcd_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         xrcd[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_alloc_xrcd_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_alloc_uar_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         uar[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_alloc_uar_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_alloc_transport_domain_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         transport_domain[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_alloc_transport_domain_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_alloc_q_counter_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x18];
+	u8         reserved_at_40[0x18];
 	u8         counter_set_id[0x8];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_alloc_q_counter_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_alloc_pd_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x8];
+	u8         reserved_at_40[0x8];
 	u8         pd[0x18];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_60[0x20];
 };
 
 struct mlx5_ifc_alloc_pd_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_add_vxlan_udp_dport_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_add_vxlan_udp_dport_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_40[0x20];
 
-	u8         reserved_3[0x10];
+	u8         reserved_at_60[0x10];
 	u8         vxlan_udp_port[0x10];
 };
 
 struct mlx5_ifc_access_register_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         register_data[0][0x20];
 };
@@ -6141,12 +6141,12 @@ enum {
 
 struct mlx5_ifc_access_register_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x10];
+	u8         reserved_at_40[0x10];
 	u8         register_id[0x10];
 
 	u8         argument[0x20];
@@ -6159,24 +6159,24 @@ struct mlx5_ifc_sltp_reg_bits {
 	u8         version[0x4];
 	u8         local_port[0x8];
 	u8         pnat[0x2];
-	u8         reserved_0[0x2];
+	u8         reserved_at_12[0x2];
 	u8         lane[0x4];
-	u8         reserved_1[0x8];
+	u8         reserved_at_18[0x8];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_20[0x20];
 
-	u8         reserved_3[0x7];
+	u8         reserved_at_40[0x7];
 	u8         polarity[0x1];
 	u8         ob_tap0[0x8];
 	u8         ob_tap1[0x8];
 	u8         ob_tap2[0x8];
 
-	u8         reserved_4[0xc];
+	u8         reserved_at_60[0xc];
 	u8         ob_preemp_mode[0x4];
 	u8         ob_reg[0x8];
 	u8         ob_bias[0x8];
 
-	u8         reserved_5[0x20];
+	u8         reserved_at_80[0x20];
 };
 
 struct mlx5_ifc_slrg_reg_bits {
@@ -6184,36 +6184,36 @@ struct mlx5_ifc_slrg_reg_bits {
 	u8         version[0x4];
 	u8         local_port[0x8];
 	u8         pnat[0x2];
-	u8         reserved_0[0x2];
+	u8         reserved_at_12[0x2];
 	u8         lane[0x4];
-	u8         reserved_1[0x8];
+	u8         reserved_at_18[0x8];
 
 	u8         time_to_link_up[0x10];
-	u8         reserved_2[0xc];
+	u8         reserved_at_30[0xc];
 	u8         grade_lane_speed[0x4];
 
 	u8         grade_version[0x8];
 	u8         grade[0x18];
 
-	u8         reserved_3[0x4];
+	u8         reserved_at_60[0x4];
 	u8         height_grade_type[0x4];
 	u8         height_grade[0x18];
 
 	u8         height_dz[0x10];
 	u8         height_dv[0x10];
 
-	u8         reserved_4[0x10];
+	u8         reserved_at_a0[0x10];
 	u8         height_sigma[0x10];
 
-	u8         reserved_5[0x20];
+	u8         reserved_at_c0[0x20];
 
-	u8         reserved_6[0x4];
+	u8         reserved_at_e0[0x4];
 	u8         phase_grade_type[0x4];
 	u8         phase_grade[0x18];
 
-	u8         reserved_7[0x8];
+	u8         reserved_at_100[0x8];
 	u8         phase_eo_pos[0x8];
-	u8         reserved_8[0x8];
+	u8         reserved_at_110[0x8];
 	u8         phase_eo_neg[0x8];
 
 	u8         ffe_set_tested[0x10];
@@ -6221,70 +6221,70 @@ struct mlx5_ifc_slrg_reg_bits {
 };
 
 struct mlx5_ifc_pvlc_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_2[0x1c];
+	u8         reserved_at_20[0x1c];
 	u8         vl_hw_cap[0x4];
 
-	u8         reserved_3[0x1c];
+	u8         reserved_at_40[0x1c];
 	u8         vl_admin[0x4];
 
-	u8         reserved_4[0x1c];
+	u8         reserved_at_60[0x1c];
 	u8         vl_operational[0x4];
 };
 
 struct mlx5_ifc_pude_reg_bits {
 	u8         swid[0x8];
 	u8         local_port[0x8];
-	u8         reserved_0[0x4];
+	u8         reserved_at_10[0x4];
 	u8         admin_status[0x4];
-	u8         reserved_1[0x4];
+	u8         reserved_at_18[0x4];
 	u8         oper_status[0x4];
 
-	u8         reserved_2[0x60];
+	u8         reserved_at_20[0x60];
 };
 
 struct mlx5_ifc_ptys_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0xd];
+	u8         reserved_at_10[0xd];
 	u8         proto_mask[0x3];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_20[0x40];
 
 	u8         eth_proto_capability[0x20];
 
 	u8         ib_link_width_capability[0x10];
 	u8         ib_proto_capability[0x10];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_a0[0x20];
 
 	u8         eth_proto_admin[0x20];
 
 	u8         ib_link_width_admin[0x10];
 	u8         ib_proto_admin[0x10];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_100[0x20];
 
 	u8         eth_proto_oper[0x20];
 
 	u8         ib_link_width_oper[0x10];
 	u8         ib_proto_oper[0x10];
 
-	u8         reserved_5[0x20];
+	u8         reserved_at_160[0x20];
 
 	u8         eth_proto_lp_advertise[0x20];
 
-	u8         reserved_6[0x60];
+	u8         reserved_at_1a0[0x60];
 };
 
 struct mlx5_ifc_ptas_reg_bits {
-	u8         reserved_0[0x20];
+	u8         reserved_at_0[0x20];
 
 	u8         algorithm_options[0x10];
-	u8         reserved_1[0x4];
+	u8         reserved_at_30[0x4];
 	u8         repetitions_mode[0x4];
 	u8         num_of_repetitions[0x8];
 
@@ -6310,13 +6310,13 @@ struct mlx5_ifc_ptas_reg_bits {
 	u8         ndeo_error_threshold[0x10];
 
 	u8         mixer_offset_step_size[0x10];
-	u8         reserved_2[0x8];
+	u8         reserved_at_110[0x8];
 	u8         mix90_phase_for_voltage_bath[0x8];
 
 	u8         mixer_offset_start[0x10];
 	u8         mixer_offset_end[0x10];
 
-	u8         reserved_3[0x15];
+	u8         reserved_at_140[0x15];
 	u8         ber_test_time[0xb];
 };
 
@@ -6324,154 +6324,154 @@ struct mlx5_ifc_pspa_reg_bits {
 	u8         swid[0x8];
 	u8         local_port[0x8];
 	u8         sub_port[0x8];
-	u8         reserved_0[0x8];
+	u8         reserved_at_18[0x8];
 
-	u8         reserved_1[0x20];
+	u8         reserved_at_20[0x20];
 };
 
 struct mlx5_ifc_pqdr_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0x5];
+	u8         reserved_at_10[0x5];
 	u8         prio[0x3];
-	u8         reserved_2[0x6];
+	u8         reserved_at_18[0x6];
 	u8         mode[0x2];
 
-	u8         reserved_3[0x20];
+	u8         reserved_at_20[0x20];
 
-	u8         reserved_4[0x10];
+	u8         reserved_at_40[0x10];
 	u8         min_threshold[0x10];
 
-	u8         reserved_5[0x10];
+	u8         reserved_at_60[0x10];
 	u8         max_threshold[0x10];
 
-	u8         reserved_6[0x10];
+	u8         reserved_at_80[0x10];
 	u8         mark_probability_denominator[0x10];
 
-	u8         reserved_7[0x60];
+	u8         reserved_at_a0[0x60];
 };
 
 struct mlx5_ifc_ppsc_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_2[0x60];
+	u8         reserved_at_20[0x60];
 
-	u8         reserved_3[0x1c];
+	u8         reserved_at_80[0x1c];
 	u8         wrps_admin[0x4];
 
-	u8         reserved_4[0x1c];
+	u8         reserved_at_a0[0x1c];
 	u8         wrps_status[0x4];
 
-	u8         reserved_5[0x8];
+	u8         reserved_at_c0[0x8];
 	u8         up_threshold[0x8];
-	u8         reserved_6[0x8];
+	u8         reserved_at_d0[0x8];
 	u8         down_threshold[0x8];
 
-	u8         reserved_7[0x20];
+	u8         reserved_at_e0[0x20];
 
-	u8         reserved_8[0x1c];
+	u8         reserved_at_100[0x1c];
 	u8         srps_admin[0x4];
 
-	u8         reserved_9[0x1c];
+	u8         reserved_at_120[0x1c];
 	u8         srps_status[0x4];
 
-	u8         reserved_10[0x40];
+	u8         reserved_at_140[0x40];
 };
 
 struct mlx5_ifc_pplr_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_20[0x8];
 	u8         lb_cap[0x8];
-	u8         reserved_3[0x8];
+	u8         reserved_at_30[0x8];
 	u8         lb_en[0x8];
 };
 
 struct mlx5_ifc_pplm_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_20[0x20];
 
 	u8         port_profile_mode[0x8];
 	u8         static_port_profile[0x8];
 	u8         active_port_profile[0x8];
-	u8         reserved_3[0x8];
+	u8         reserved_at_58[0x8];
 
 	u8         retransmission_active[0x8];
 	u8         fec_mode_active[0x18];
 
-	u8         reserved_4[0x20];
+	u8         reserved_at_80[0x20];
 };
 
 struct mlx5_ifc_ppcnt_reg_bits {
 	u8         swid[0x8];
 	u8         local_port[0x8];
 	u8         pnat[0x2];
-	u8         reserved_0[0x8];
+	u8         reserved_at_12[0x8];
 	u8         grp[0x6];
 
 	u8         clr[0x1];
-	u8         reserved_1[0x1c];
+	u8         reserved_at_21[0x1c];
 	u8         prio_tc[0x3];
 
 	union mlx5_ifc_eth_cntrs_grp_data_layout_auto_bits counter_set;
 };
 
 struct mlx5_ifc_ppad_reg_bits {
-	u8         reserved_0[0x3];
+	u8         reserved_at_0[0x3];
 	u8         single_mac[0x1];
-	u8         reserved_1[0x4];
+	u8         reserved_at_4[0x4];
 	u8         local_port[0x8];
 	u8         mac_47_32[0x10];
 
 	u8         mac_31_0[0x20];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_pmtu_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
 	u8         max_mtu[0x10];
-	u8         reserved_2[0x10];
+	u8         reserved_at_30[0x10];
 
 	u8         admin_mtu[0x10];
-	u8         reserved_3[0x10];
+	u8         reserved_at_50[0x10];
 
 	u8         oper_mtu[0x10];
-	u8         reserved_4[0x10];
+	u8         reserved_at_70[0x10];
 };
 
 struct mlx5_ifc_pmpr_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         module[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_2[0x18];
+	u8         reserved_at_20[0x18];
 	u8         attenuation_5g[0x8];
 
-	u8         reserved_3[0x18];
+	u8         reserved_at_40[0x18];
 	u8         attenuation_7g[0x8];
 
-	u8         reserved_4[0x18];
+	u8         reserved_at_60[0x18];
 	u8         attenuation_12g[0x8];
 };
 
 struct mlx5_ifc_pmpe_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         module[0x8];
-	u8         reserved_1[0xc];
+	u8         reserved_at_10[0xc];
 	u8         module_status[0x4];
 
-	u8         reserved_2[0x60];
+	u8         reserved_at_20[0x60];
 };
 
 struct mlx5_ifc_pmpc_reg_bits {
@@ -6479,20 +6479,20 @@ struct mlx5_ifc_pmpc_reg_bits {
 };
 
 struct mlx5_ifc_pmlpn_reg_bits {
-	u8         reserved_0[0x4];
+	u8         reserved_at_0[0x4];
 	u8         mlpn_status[0x4];
 	u8         local_port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
 	u8         e[0x1];
-	u8         reserved_2[0x1f];
+	u8         reserved_at_21[0x1f];
 };
 
 struct mlx5_ifc_pmlp_reg_bits {
 	u8         rxtx[0x1];
-	u8         reserved_0[0x7];
+	u8         reserved_at_1[0x7];
 	u8         local_port[0x8];
-	u8         reserved_1[0x8];
+	u8         reserved_at_10[0x8];
 	u8         width[0x8];
 
 	u8         lane0_module_mapping[0x20];
@@ -6503,36 +6503,36 @@ struct mlx5_ifc_pmlp_reg_bits {
 
 	u8         lane3_module_mapping[0x20];
 
-	u8         reserved_2[0x160];
+	u8         reserved_at_a0[0x160];
 };
 
 struct mlx5_ifc_pmaos_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         module[0x8];
-	u8         reserved_1[0x4];
+	u8         reserved_at_10[0x4];
 	u8         admin_status[0x4];
-	u8         reserved_2[0x4];
+	u8         reserved_at_18[0x4];
 	u8         oper_status[0x4];
 
 	u8         ase[0x1];
 	u8         ee[0x1];
-	u8         reserved_3[0x1c];
+	u8         reserved_at_22[0x1c];
 	u8         e[0x2];
 
-	u8         reserved_4[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_plpc_reg_bits {
-	u8         reserved_0[0x4];
+	u8         reserved_at_0[0x4];
 	u8         profile_id[0xc];
-	u8         reserved_1[0x4];
+	u8         reserved_at_10[0x4];
 	u8         proto_mask[0x4];
-	u8         reserved_2[0x8];
+	u8         reserved_at_18[0x8];
 
-	u8         reserved_3[0x10];
+	u8         reserved_at_20[0x10];
 	u8         lane_speed[0x10];
 
-	u8         reserved_4[0x17];
+	u8         reserved_at_40[0x17];
 	u8         lpbf[0x1];
 	u8         fec_mode_policy[0x8];
 
@@ -6545,44 +6545,44 @@ struct mlx5_ifc_plpc_reg_bits {
 	u8         retransmission_request_admin[0x8];
 	u8         fec_mode_request_admin[0x18];
 
-	u8         reserved_5[0x80];
+	u8         reserved_at_c0[0x80];
 };
 
 struct mlx5_ifc_plib_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0x8];
+	u8         reserved_at_10[0x8];
 	u8         ib_port[0x8];
 
-	u8         reserved_2[0x60];
+	u8         reserved_at_20[0x60];
 };
 
 struct mlx5_ifc_plbf_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0xd];
+	u8         reserved_at_10[0xd];
 	u8         lbf_mode[0x3];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_20[0x20];
 };
 
 struct mlx5_ifc_pipg_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
 	u8         dic[0x1];
-	u8         reserved_2[0x19];
+	u8         reserved_at_21[0x19];
 	u8         ipg[0x4];
-	u8         reserved_3[0x2];
+	u8         reserved_at_3e[0x2];
 };
 
 struct mlx5_ifc_pifr_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_2[0xe0];
+	u8         reserved_at_20[0xe0];
 
 	u8         port_filter[8][0x20];
 
@@ -6590,36 +6590,36 @@ struct mlx5_ifc_pifr_reg_bits {
 };
 
 struct mlx5_ifc_pfcc_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
 	u8         ppan[0x4];
-	u8         reserved_2[0x4];
+	u8         reserved_at_24[0x4];
 	u8         prio_mask_tx[0x8];
-	u8         reserved_3[0x8];
+	u8         reserved_at_30[0x8];
 	u8         prio_mask_rx[0x8];
 
 	u8         pptx[0x1];
 	u8         aptx[0x1];
-	u8         reserved_4[0x6];
+	u8         reserved_at_42[0x6];
 	u8         pfctx[0x8];
-	u8         reserved_5[0x10];
+	u8         reserved_at_50[0x10];
 
 	u8         pprx[0x1];
 	u8         aprx[0x1];
-	u8         reserved_6[0x6];
+	u8         reserved_at_62[0x6];
 	u8         pfcrx[0x8];
-	u8         reserved_7[0x10];
+	u8         reserved_at_70[0x10];
 
-	u8         reserved_8[0x80];
+	u8         reserved_at_80[0x80];
 };
 
 struct mlx5_ifc_pelc_reg_bits {
 	u8         op[0x4];
-	u8         reserved_0[0x4];
+	u8         reserved_at_4[0x4];
 	u8         local_port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
 	u8         op_admin[0x8];
 	u8         op_capability[0x8];
@@ -6634,28 +6634,28 @@ struct mlx5_ifc_pelc_reg_bits {
 
 	u8         active[0x40];
 
-	u8         reserved_2[0x80];
+	u8         reserved_at_140[0x80];
 };
 
 struct mlx5_ifc_peir_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_2[0xc];
+	u8         reserved_at_20[0xc];
 	u8         error_count[0x4];
-	u8         reserved_3[0x10];
+	u8         reserved_at_30[0x10];
 
-	u8         reserved_4[0xc];
+	u8         reserved_at_40[0xc];
 	u8         lane[0x4];
-	u8         reserved_5[0x8];
+	u8         reserved_at_50[0x8];
 	u8         error_type[0x8];
 };
 
 struct mlx5_ifc_pcap_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
-	u8         reserved_1[0x10];
+	u8         reserved_at_10[0x10];
 
 	u8         port_capability_mask[4][0x20];
 };
@@ -6663,46 +6663,46 @@ struct mlx5_ifc_pcap_reg_bits {
 struct mlx5_ifc_paos_reg_bits {
 	u8         swid[0x8];
 	u8         local_port[0x8];
-	u8         reserved_0[0x4];
+	u8         reserved_at_10[0x4];
 	u8         admin_status[0x4];
-	u8         reserved_1[0x4];
+	u8         reserved_at_18[0x4];
 	u8         oper_status[0x4];
 
 	u8         ase[0x1];
 	u8         ee[0x1];
-	u8         reserved_2[0x1c];
+	u8         reserved_at_22[0x1c];
 	u8         e[0x2];
 
-	u8         reserved_3[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_pamp_reg_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         opamp_group[0x8];
-	u8         reserved_1[0xc];
+	u8         reserved_at_10[0xc];
 	u8         opamp_group_type[0x4];
 
 	u8         start_index[0x10];
-	u8         reserved_2[0x4];
+	u8         reserved_at_30[0x4];
 	u8         num_of_indices[0xc];
 
 	u8         index_data[18][0x10];
 };
 
 struct mlx5_ifc_lane_2_module_mapping_bits {
-	u8         reserved_0[0x6];
+	u8         reserved_at_0[0x6];
 	u8         rx_lane[0x2];
-	u8         reserved_1[0x6];
+	u8         reserved_at_8[0x6];
 	u8         tx_lane[0x2];
-	u8         reserved_2[0x8];
+	u8         reserved_at_10[0x8];
 	u8         module[0x8];
 };
 
 struct mlx5_ifc_bufferx_reg_bits {
-	u8         reserved_0[0x6];
+	u8         reserved_at_0[0x6];
 	u8         lossy[0x1];
 	u8         epsb[0x1];
-	u8         reserved_1[0xc];
+	u8         reserved_at_8[0xc];
 	u8         size[0xc];
 
 	u8         xoff_threshold[0x10];
@@ -6714,21 +6714,21 @@ struct mlx5_ifc_set_node_in_bits {
 };
 
 struct mlx5_ifc_register_power_settings_bits {
-	u8         reserved_0[0x18];
+	u8         reserved_at_0[0x18];
 	u8         power_settings_level[0x8];
 
-	u8         reserved_1[0x60];
+	u8         reserved_at_20[0x60];
 };
 
 struct mlx5_ifc_register_host_endianness_bits {
 	u8         he[0x1];
-	u8         reserved_0[0x1f];
+	u8         reserved_at_1[0x1f];
 
-	u8         reserved_1[0x60];
+	u8         reserved_at_20[0x60];
 };
 
 struct mlx5_ifc_umr_pointer_desc_argument_bits {
-	u8         reserved_0[0x20];
+	u8         reserved_at_0[0x20];
 
 	u8         mkey[0x20];
 
@@ -6741,7 +6741,7 @@ struct mlx5_ifc_ud_adrs_vector_bits {
 	u8         dc_key[0x40];
 
 	u8         ext[0x1];
-	u8         reserved_0[0x7];
+	u8         reserved_at_41[0x7];
 	u8         destination_qp_dct[0x18];
 
 	u8         static_rate[0x4];
@@ -6750,7 +6750,7 @@ struct mlx5_ifc_ud_adrs_vector_bits {
 	u8         mlid[0x7];
 	u8         rlid_udp_sport[0x10];
 
-	u8         reserved_1[0x20];
+	u8         reserved_at_80[0x20];
 
 	u8         rmac_47_16[0x20];
 
@@ -6758,9 +6758,9 @@ struct mlx5_ifc_ud_adrs_vector_bits {
 	u8         tclass[0x8];
 	u8         hop_limit[0x8];
 
-	u8         reserved_2[0x1];
+	u8         reserved_at_e0[0x1];
 	u8         grh[0x1];
-	u8         reserved_3[0x2];
+	u8         reserved_at_e2[0x2];
 	u8         src_addr_index[0x8];
 	u8         flow_label[0x14];
 
@@ -6768,27 +6768,27 @@ struct mlx5_ifc_ud_adrs_vector_bits {
 };
 
 struct mlx5_ifc_pages_req_event_bits {
-	u8         reserved_0[0x10];
+	u8         reserved_at_0[0x10];
 	u8         function_id[0x10];
 
 	u8         num_pages[0x20];
 
-	u8         reserved_1[0xa0];
+	u8         reserved_at_40[0xa0];
 };
 
 struct mlx5_ifc_eqe_bits {
-	u8         reserved_0[0x8];
+	u8         reserved_at_0[0x8];
 	u8         event_type[0x8];
-	u8         reserved_1[0x8];
+	u8         reserved_at_10[0x8];
 	u8         event_sub_type[0x8];
 
-	u8         reserved_2[0xe0];
+	u8         reserved_at_20[0xe0];
 
 	union mlx5_ifc_event_auto_bits event_data;
 
-	u8         reserved_3[0x10];
+	u8         reserved_at_1e0[0x10];
 	u8         signature[0x8];
-	u8         reserved_4[0x7];
+	u8         reserved_at_1f8[0x7];
 	u8         owner[0x1];
 };
 
@@ -6798,14 +6798,14 @@ enum {
 
 struct mlx5_ifc_cmd_queue_entry_bits {
 	u8         type[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         input_length[0x20];
 
 	u8         input_mailbox_pointer_63_32[0x20];
 
 	u8         input_mailbox_pointer_31_9[0x17];
-	u8         reserved_1[0x9];
+	u8         reserved_at_77[0x9];
 
 	u8         command_input_inline_data[16][0x8];
 
@@ -6814,20 +6814,20 @@ struct mlx5_ifc_cmd_queue_entry_bits {
 	u8         output_mailbox_pointer_63_32[0x20];
 
 	u8         output_mailbox_pointer_31_9[0x17];
-	u8         reserved_2[0x9];
+	u8         reserved_at_1b7[0x9];
 
 	u8         output_length[0x20];
 
 	u8         token[0x8];
 	u8         signature[0x8];
-	u8         reserved_3[0x8];
+	u8         reserved_at_1f0[0x8];
 	u8         status[0x7];
 	u8         ownership[0x1];
 };
 
 struct mlx5_ifc_cmd_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
@@ -6836,9 +6836,9 @@ struct mlx5_ifc_cmd_out_bits {
 
 struct mlx5_ifc_cmd_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
 	u8         command[0][0x20];
@@ -6847,16 +6847,16 @@ struct mlx5_ifc_cmd_in_bits {
 struct mlx5_ifc_cmd_if_box_bits {
 	u8         mailbox_data[512][0x8];
 
-	u8         reserved_0[0x180];
+	u8         reserved_at_1000[0x180];
 
 	u8         next_pointer_63_32[0x20];
 
 	u8         next_pointer_31_10[0x16];
-	u8         reserved_1[0xa];
+	u8         reserved_at_11b6[0xa];
 
 	u8         block_number[0x20];
 
-	u8         reserved_2[0x8];
+	u8         reserved_at_11e0[0x8];
 	u8         token[0x8];
 	u8         ctrl_signature[0x8];
 	u8         signature[0x8];
@@ -6866,7 +6866,7 @@ struct mlx5_ifc_mtt_bits {
 	u8         ptag_63_32[0x20];
 
 	u8         ptag_31_8[0x18];
-	u8         reserved_0[0x6];
+	u8         reserved_at_38[0x6];
 	u8         wr_en[0x1];
 	u8         rd_en[0x1];
 };
@@ -6904,38 +6904,38 @@ struct mlx5_ifc_initial_seg_bits {
 	u8         cmd_interface_rev[0x10];
 	u8         fw_rev_subminor[0x10];
 
-	u8         reserved_0[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         cmdq_phy_addr_63_32[0x20];
 
 	u8         cmdq_phy_addr_31_12[0x14];
-	u8         reserved_1[0x2];
+	u8         reserved_at_b4[0x2];
 	u8         nic_interface[0x2];
 	u8         log_cmdq_size[0x4];
 	u8         log_cmdq_stride[0x4];
 
 	u8         command_doorbell_vector[0x20];
 
-	u8         reserved_2[0xf00];
+	u8         reserved_at_e0[0xf00];
 
 	u8         initializing[0x1];
-	u8         reserved_3[0x4];
+	u8         reserved_at_fe1[0x4];
 	u8         nic_interface_supported[0x3];
-	u8         reserved_4[0x18];
+	u8         reserved_at_fe8[0x18];
 
 	struct mlx5_ifc_health_buffer_bits health_buffer;
 
 	u8         no_dram_nic_offset[0x20];
 
-	u8         reserved_5[0x6e40];
+	u8         reserved_at_1220[0x6e40];
 
-	u8         reserved_6[0x1f];
+	u8         reserved_at_8060[0x1f];
 	u8         clear_int[0x1];
 
 	u8         health_syndrome[0x8];
 	u8         health_counter[0x18];
 
-	u8         reserved_7[0x17fc0];
+	u8         reserved_at_80a0[0x17fc0];
 };
 
 union mlx5_ifc_ports_control_registers_document_bits {
@@ -6980,44 +6980,44 @@ union mlx5_ifc_ports_control_registers_document_bits {
 	struct mlx5_ifc_pvlc_reg_bits pvlc_reg;
 	struct mlx5_ifc_slrg_reg_bits slrg_reg;
 	struct mlx5_ifc_sltp_reg_bits sltp_reg;
-	u8         reserved_0[0x60e0];
+	u8         reserved_at_0[0x60e0];
 };
 
 union mlx5_ifc_debug_enhancements_document_bits {
 	struct mlx5_ifc_health_buffer_bits health_buffer;
-	u8         reserved_0[0x200];
+	u8         reserved_at_0[0x200];
 };
 
 union mlx5_ifc_uplink_pci_interface_document_bits {
 	struct mlx5_ifc_initial_seg_bits initial_seg;
-	u8         reserved_0[0x20060];
+	u8         reserved_at_0[0x20060];
 };
 
 struct mlx5_ifc_set_flow_table_root_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_set_flow_table_root_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x40];
+	u8         reserved_at_40[0x40];
 
 	u8         table_type[0x8];
-	u8         reserved_3[0x18];
+	u8         reserved_at_88[0x18];
 
-	u8         reserved_4[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_id[0x18];
 
-	u8         reserved_5[0x140];
+	u8         reserved_at_c0[0x140];
 };
 
 enum {
@@ -7026,39 +7026,39 @@ enum {
 
 struct mlx5_ifc_modify_flow_table_out_bits {
 	u8         status[0x8];
-	u8         reserved_0[0x18];
+	u8         reserved_at_8[0x18];
 
 	u8         syndrome[0x20];
 
-	u8         reserved_1[0x40];
+	u8         reserved_at_40[0x40];
 };
 
 struct mlx5_ifc_modify_flow_table_in_bits {
 	u8         opcode[0x10];
-	u8         reserved_0[0x10];
+	u8         reserved_at_10[0x10];
 
-	u8         reserved_1[0x10];
+	u8         reserved_at_20[0x10];
 	u8         op_mod[0x10];
 
-	u8         reserved_2[0x20];
+	u8         reserved_at_40[0x20];
 
-	u8         reserved_3[0x10];
+	u8         reserved_at_60[0x10];
 	u8         modify_field_select[0x10];
 
 	u8         table_type[0x8];
-	u8         reserved_4[0x18];
+	u8         reserved_at_88[0x18];
 
-	u8         reserved_5[0x8];
+	u8         reserved_at_a0[0x8];
 	u8         table_id[0x18];
 
-	u8         reserved_6[0x4];
+	u8         reserved_at_c0[0x4];
 	u8         table_miss_mode[0x4];
-	u8         reserved_7[0x18];
+	u8         reserved_at_c8[0x18];
 
-	u8         reserved_8[0x8];
+	u8         reserved_at_e0[0x8];
 	u8         table_miss_id[0x18];
 
-	u8         reserved_9[0x100];
+	u8         reserved_at_100[0x100];
 };
 
 #endif /* MLX5_IFC_H */
diff --git a/include/linux/module.h b/include/linux/module.h
index 4560d8f..2bb0c30 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -324,6 +324,12 @@ struct module_layout {
 #define __module_layout_align
 #endif
 
+struct mod_kallsyms {
+	Elf_Sym *symtab;
+	unsigned int num_symtab;
+	char *strtab;
+};
+
 struct module {
 	enum module_state state;
 
@@ -405,15 +411,10 @@ struct module {
 #endif
 
 #ifdef CONFIG_KALLSYMS
-	/*
-	 * We keep the symbol and string tables for kallsyms.
-	 * The core_* fields below are temporary, loader-only (they
-	 * could really be discarded after module init).
-	 */
-	Elf_Sym *symtab, *core_symtab;
-	unsigned int num_symtab, core_num_syms;
-	char *strtab, *core_strtab;
-
+	/* Protected by RCU and/or module_mutex: use rcu_dereference() */
+	struct mod_kallsyms *kallsyms;
+	struct mod_kallsyms core_kallsyms;
+	
 	/* Section attributes */
 	struct module_sect_attrs *sect_attrs;
 
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 289c231..5440b7b 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3718,7 +3718,7 @@ void *netdev_lower_get_next_private_rcu(struct net_device *dev,
 void *netdev_lower_get_next(struct net_device *dev,
 				struct list_head **iter);
 #define netdev_for_each_lower_dev(dev, ldev, iter) \
-	for (iter = &(dev)->adj_list.lower, \
+	for (iter = (dev)->adj_list.lower.next, \
 	     ldev = netdev_lower_get_next(dev, &(iter)); \
 	     ldev; \
 	     ldev = netdev_lower_get_next(dev, &(iter)))
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 48e0320..67300f8 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -550,9 +550,7 @@ extern int  nfs_readpage_async(struct nfs_open_context *, struct inode *,
 
 static inline loff_t nfs_size_to_loff_t(__u64 size)
 {
-	if (size > (__u64) OFFSET_MAX - 1)
-		return OFFSET_MAX - 1;
-	return (loff_t) size;
+	return min_t(u64, size, OFFSET_MAX);
 }
 
 static inline ino_t
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 791098a..d320906 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -275,6 +275,7 @@ struct nfs4_layoutcommit_args {
 	size_t layoutupdate_len;
 	struct page *layoutupdate_page;
 	struct page **layoutupdate_pages;
+	__be32 *start_p;
 };
 
 struct nfs4_layoutcommit_res {
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 27df4a6..2771625 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -988,23 +988,6 @@ static inline int pci_is_managed(struct pci_dev *pdev)
 	return pdev->is_managed;
 }
 
-static inline void pci_set_managed_irq(struct pci_dev *pdev, unsigned int irq)
-{
-	pdev->irq = irq;
-	pdev->irq_managed = 1;
-}
-
-static inline void pci_reset_managed_irq(struct pci_dev *pdev)
-{
-	pdev->irq = 0;
-	pdev->irq_managed = 0;
-}
-
-static inline bool pci_has_managed_irq(struct pci_dev *pdev)
-{
-	return pdev->irq_managed && pdev->irq > 0;
-}
-
 void pci_disable_device(struct pci_dev *dev);
 
 extern unsigned int pcibios_max_latency;
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index b35a61a..f5c5a3f 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -397,6 +397,7 @@ struct pmu {
  * enum perf_event_active_state - the states of a event
  */
 enum perf_event_active_state {
+	PERF_EVENT_STATE_DEAD		= -4,
 	PERF_EVENT_STATE_EXIT		= -3,
 	PERF_EVENT_STATE_ERROR		= -2,
 	PERF_EVENT_STATE_OFF		= -1,
@@ -905,7 +906,7 @@ perf_sw_event_sched(u32 event_id, u64 nr, u64 addr)
 	}
 }
 
-extern struct static_key_deferred perf_sched_events;
+extern struct static_key_false perf_sched_events;
 
 static __always_inline bool
 perf_sw_migrate_enabled(void)
@@ -924,7 +925,7 @@ static inline void perf_event_task_migrate(struct task_struct *task)
 static inline void perf_event_task_sched_in(struct task_struct *prev,
 					    struct task_struct *task)
 {
-	if (static_key_false(&perf_sched_events.key))
+	if (static_branch_unlikely(&perf_sched_events))
 		__perf_event_task_sched_in(prev, task);
 
 	if (perf_sw_migrate_enabled() && task->sched_migrated) {
@@ -941,7 +942,7 @@ static inline void perf_event_task_sched_out(struct task_struct *prev,
 {
 	perf_sw_event_sched(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, 0);
 
-	if (static_key_false(&perf_sched_events.key))
+	if (static_branch_unlikely(&perf_sched_events))
 		__perf_event_task_sched_out(prev, next);
 }
 
diff --git a/include/linux/pfn.h b/include/linux/pfn.h
index 2d8e497..1132953 100644
--- a/include/linux/pfn.h
+++ b/include/linux/pfn.h
@@ -10,7 +10,7 @@
  * backing is indicated by flags in the high bits of the value.
  */
 typedef struct {
-	unsigned long val;
+	u64 val;
 } pfn_t;
 #endif
 
diff --git a/include/linux/pfn_t.h b/include/linux/pfn_t.h
index 37448ab..9499481 100644
--- a/include/linux/pfn_t.h
+++ b/include/linux/pfn_t.h
@@ -9,14 +9,13 @@
  * PFN_DEV - pfn is not covered by system memmap by default
  * PFN_MAP - pfn has a dynamic page mapping established by a device driver
  */
-#define PFN_FLAGS_MASK (((unsigned long) ~PAGE_MASK) \
-		<< (BITS_PER_LONG - PAGE_SHIFT))
-#define PFN_SG_CHAIN (1UL << (BITS_PER_LONG - 1))
-#define PFN_SG_LAST (1UL << (BITS_PER_LONG - 2))
-#define PFN_DEV (1UL << (BITS_PER_LONG - 3))
-#define PFN_MAP (1UL << (BITS_PER_LONG - 4))
-
-static inline pfn_t __pfn_to_pfn_t(unsigned long pfn, unsigned long flags)
+#define PFN_FLAGS_MASK (((u64) ~PAGE_MASK) << (BITS_PER_LONG_LONG - PAGE_SHIFT))
+#define PFN_SG_CHAIN (1ULL << (BITS_PER_LONG_LONG - 1))
+#define PFN_SG_LAST (1ULL << (BITS_PER_LONG_LONG - 2))
+#define PFN_DEV (1ULL << (BITS_PER_LONG_LONG - 3))
+#define PFN_MAP (1ULL << (BITS_PER_LONG_LONG - 4))
+
+static inline pfn_t __pfn_to_pfn_t(unsigned long pfn, u64 flags)
 {
 	pfn_t pfn_t = { .val = pfn | (flags & PFN_FLAGS_MASK), };
 
@@ -29,7 +28,7 @@ static inline pfn_t pfn_to_pfn_t(unsigned long pfn)
 	return __pfn_to_pfn_t(pfn, 0);
 }
 
-extern pfn_t phys_to_pfn_t(phys_addr_t addr, unsigned long flags);
+extern pfn_t phys_to_pfn_t(phys_addr_t addr, u64 flags);
 
 static inline bool pfn_t_has_page(pfn_t pfn)
 {
@@ -87,7 +86,7 @@ static inline pmd_t pfn_t_pmd(pfn_t pfn, pgprot_t pgprot)
 #ifdef __HAVE_ARCH_PTE_DEVMAP
 static inline bool pfn_t_devmap(pfn_t pfn)
 {
-	const unsigned long flags = PFN_DEV|PFN_MAP;
+	const u64 flags = PFN_DEV|PFN_MAP;
 
 	return (pfn.val & flags) == flags;
 }
diff --git a/include/linux/power/bq27xxx_battery.h b/include/linux/power/bq27xxx_battery.h
index 998d8f1..b50c049 100644
--- a/include/linux/power/bq27xxx_battery.h
+++ b/include/linux/power/bq27xxx_battery.h
@@ -49,6 +49,7 @@ struct bq27xxx_reg_cache {
 
 struct bq27xxx_device_info {
 	struct device *dev;
+	int id;
 	enum bq27xxx_chip chip;
 	const char *name;
 	struct bq27xxx_access_methods bus;
diff --git a/include/linux/random.h b/include/linux/random.h
index a75840c..9c29122 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -34,6 +34,7 @@ extern const struct file_operations random_fops, urandom_fops;
 #endif
 
 unsigned int get_random_int(void);
+unsigned long get_random_long(void);
 unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len);
 
 u32 prandom_u32(void);
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 11f935c..4ce9ff7 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -299,6 +299,7 @@ struct sk_buff;
 #else
 #define MAX_SKB_FRAGS (65536/PAGE_SIZE + 1)
 #endif
+extern int sysctl_max_skb_frags;
 
 typedef struct skb_frag_struct skb_frag_t;
 
diff --git a/include/linux/soc/ti/knav_dma.h b/include/linux/soc/ti/knav_dma.h
index 343c13a..35cb926 100644
--- a/include/linux/soc/ti/knav_dma.h
+++ b/include/linux/soc/ti/knav_dma.h
@@ -44,6 +44,7 @@
 
 #define KNAV_DMA_NUM_EPIB_WORDS			4
 #define KNAV_DMA_NUM_PS_WORDS			16
+#define KNAV_DMA_NUM_SW_DATA_WORDS		4
 #define KNAV_DMA_FDQ_PER_CHAN			4
 
 /* Tx channel scheduling priority */
@@ -142,6 +143,7 @@ struct knav_dma_cfg {
  * @orig_buff:			buff pointer since 'buff' can be overwritten
  * @epib:			Extended packet info block
  * @psdata:			Protocol specific
+ * @sw_data:			Software private data not touched by h/w
  */
 struct knav_dma_desc {
 	__le32	desc_info;
@@ -154,7 +156,7 @@ struct knav_dma_desc {
 	__le32	orig_buff;
 	__le32	epib[KNAV_DMA_NUM_EPIB_WORDS];
 	__le32	psdata[KNAV_DMA_NUM_PS_WORDS];
-	__le32	pad[4];
+	u32	sw_data[KNAV_DMA_NUM_SW_DATA_WORDS];
 } ____cacheline_aligned;
 
 #if IS_ENABLED(CONFIG_KEYSTONE_NAVIGATOR_DMA)
diff --git a/include/linux/stm.h b/include/linux/stm.h
index 9d0083d..1a79ed8 100644
--- a/include/linux/stm.h
+++ b/include/linux/stm.h
@@ -67,6 +67,16 @@ struct stm_device;
  * description. That is, the lowest master that can be allocated to software
  * writers is @sw_start and data from this writer will appear is @sw_start
  * master in the STP stream.
+ *
+ * The @packet callback should adhere to the following rules:
+ *   1) it must return the number of bytes it consumed from the payload;
+ *   2) therefore, if it sent a packet that does not have payload (like FLAG),
+ *      it must return zero;
+ *   3) if it does not support the requested packet type/flag combination,
+ *      it must return -ENOTSUPP.
+ *
+ * The @unlink callback is called when there are no more active writers so
+ * that the master/channel can be quiesced.
  */
 struct stm_data {
 	const char		*name;
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index acd522a..acfdbf3 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -14,8 +14,10 @@
  * See the file COPYING for more details.
  */
 
+#include <linux/smp.h>
 #include <linux/errno.h>
 #include <linux/types.h>
+#include <linux/cpumask.h>
 #include <linux/rcupdate.h>
 #include <linux/tracepoint-defs.h>
 
@@ -132,6 +134,9 @@ extern void syscall_unregfunc(void);
 		void *it_func;						\
 		void *__data;						\
 									\
+		if (!cpu_online(raw_smp_processor_id()))		\
+			return;						\
+									\
 		if (!(cond))						\
 			return;						\
 		prercu;							\
diff --git a/include/linux/ucs2_string.h b/include/linux/ucs2_string.h
index cbb20af..bb679b4 100644
--- a/include/linux/ucs2_string.h
+++ b/include/linux/ucs2_string.h
@@ -11,4 +11,8 @@ unsigned long ucs2_strlen(const ucs2_char_t *s);
 unsigned long ucs2_strsize(const ucs2_char_t *data, unsigned long maxlength);
 int ucs2_strncmp(const ucs2_char_t *a, const ucs2_char_t *b, size_t len);
 
+unsigned long ucs2_utf8size(const ucs2_char_t *src);
+unsigned long ucs2_as_utf8(u8 *dest, const ucs2_char_t *src,
+			   unsigned long maxlength);
+
 #endif /* _LINUX_UCS2_STRING_H_ */
diff --git a/include/linux/vmw_vmci_defs.h b/include/linux/vmw_vmci_defs.h
index 65ac54c..1bd31a3 100644
--- a/include/linux/vmw_vmci_defs.h
+++ b/include/linux/vmw_vmci_defs.h
@@ -734,6 +734,41 @@ static inline void *vmci_event_data_payload(struct vmci_event_data *ev_data)
 }
 
 /*
+ * Helper to read a value from a head or tail pointer. For X86_32, the
+ * pointer is treated as a 32bit value, since the pointer value
+ * never exceeds a 32bit value in this case. Also, doing an
+ * atomic64_read on X86_32 uniprocessor systems may be implemented
+ * as a non locked cmpxchg8b, that may end up overwriting updates done
+ * by the VMCI device to the memory location. On 32bit SMP, the lock
+ * prefix will be used, so correctness isn't an issue, but using a
+ * 64bit operation still adds unnecessary overhead.
+ */
+static inline u64 vmci_q_read_pointer(atomic64_t *var)
+{
+#if defined(CONFIG_X86_32)
+	return atomic_read((atomic_t *)var);
+#else
+	return atomic64_read(var);
+#endif
+}
+
+/*
+ * Helper to set the value of a head or tail pointer. For X86_32, the
+ * pointer is treated as a 32bit value, since the pointer value
+ * never exceeds a 32bit value in this case. On 32bit SMP, using a
+ * locked cmpxchg8b adds unnecessary overhead.
+ */
+static inline void vmci_q_set_pointer(atomic64_t *var,
+				      u64 new_val)
+{
+#if defined(CONFIG_X86_32)
+	return atomic_set((atomic_t *)var, (u32)new_val);
+#else
+	return atomic64_set(var, new_val);
+#endif
+}
+
+/*
  * Helper to add a given offset to a head or tail pointer. Wraps the
  * value of the pointer around the max size of the queue.
  */
@@ -741,14 +776,14 @@ static inline void vmci_qp_add_pointer(atomic64_t *var,
 				       size_t add,
 				       u64 size)
 {
-	u64 new_val = atomic64_read(var);
+	u64 new_val = vmci_q_read_pointer(var);
 
 	if (new_val >= size - add)
 		new_val -= size;
 
 	new_val += add;
 
-	atomic64_set(var, new_val);
+	vmci_q_set_pointer(var, new_val);
 }
 
 /*
@@ -758,7 +793,7 @@ static inline u64
 vmci_q_header_producer_tail(const struct vmci_queue_header *q_header)
 {
 	struct vmci_queue_header *qh = (struct vmci_queue_header *)q_header;
-	return atomic64_read(&qh->producer_tail);
+	return vmci_q_read_pointer(&qh->producer_tail);
 }
 
 /*
@@ -768,7 +803,7 @@ static inline u64
 vmci_q_header_consumer_head(const struct vmci_queue_header *q_header)
 {
 	struct vmci_queue_header *qh = (struct vmci_queue_header *)q_header;
-	return atomic64_read(&qh->consumer_head);
+	return vmci_q_read_pointer(&qh->consumer_head);
 }
 
 /*
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 0e32bc7..ca73c50 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -311,6 +311,7 @@ enum {
 
 	__WQ_DRAINING		= 1 << 16, /* internal: workqueue is draining */
 	__WQ_ORDERED		= 1 << 17, /* internal: workqueue is ordered */
+	__WQ_LEGACY		= 1 << 18, /* internal: create*_workqueue() */
 
 	WQ_MAX_ACTIVE		= 512,	  /* I like 512, better ideas? */
 	WQ_MAX_UNBOUND_PER_CPU	= 4,	  /* 4 * #cpus for unbound wq */
@@ -411,12 +412,12 @@ __alloc_workqueue_key(const char *fmt, unsigned int flags, int max_active,
 	alloc_workqueue(fmt, WQ_UNBOUND | __WQ_ORDERED | (flags), 1, ##args)
 
 #define create_workqueue(name)						\
-	alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, (name))
+	alloc_workqueue("%s", __WQ_LEGACY | WQ_MEM_RECLAIM, 1, (name))
 #define create_freezable_workqueue(name)				\
-	alloc_workqueue("%s", WQ_FREEZABLE | WQ_UNBOUND | WQ_MEM_RECLAIM, \
-			1, (name))
+	alloc_workqueue("%s", __WQ_LEGACY | WQ_FREEZABLE | WQ_UNBOUND |	\
+			WQ_MEM_RECLAIM, 1, (name))
 #define create_singlethread_workqueue(name)				\
-	alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, name)
+	alloc_ordered_workqueue("%s", __WQ_LEGACY | WQ_MEM_RECLAIM, name)
 
 extern void destroy_workqueue(struct workqueue_struct *wq);
 
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index 2a91a05..9b4c418 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -6,8 +6,8 @@
 #include <linux/mutex.h>
 #include <net/sock.h>
 
-void unix_inflight(struct file *fp);
-void unix_notinflight(struct file *fp);
+void unix_inflight(struct user_struct *user, struct file *fp);
+void unix_notinflight(struct user_struct *user, struct file *fp);
 void unix_gc(void);
 void wait_for_unix_gc(void);
 struct sock *unix_get_socket(struct file *filp);
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index 481fe1c..49dcad4 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -270,8 +270,9 @@ struct dst_entry *inet_csk_route_child_sock(const struct sock *sk,
 					    struct sock *newsk,
 					    const struct request_sock *req);
 
-void inet_csk_reqsk_queue_add(struct sock *sk, struct request_sock *req,
-			      struct sock *child);
+struct sock *inet_csk_reqsk_queue_add(struct sock *sk,
+				      struct request_sock *req,
+				      struct sock *child);
 void inet_csk_reqsk_queue_hash_add(struct sock *sk, struct request_sock *req,
 				   unsigned long timeout);
 struct sock *inet_csk_complete_hashdance(struct sock *sk, struct sock *child,
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 7029527..4079fc1 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -61,6 +61,7 @@ struct fib_nh_exception {
 	struct rtable __rcu		*fnhe_rth_input;
 	struct rtable __rcu		*fnhe_rth_output;
 	unsigned long			fnhe_stamp;
+	struct rcu_head			rcu;
 };
 
 struct fnhe_hash_bucket {
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 6db96ea..dda9abf 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -230,6 +230,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 int ip_tunnel_ioctl(struct net_device *dev, struct ip_tunnel_parm *p, int cmd);
 int ip_tunnel_encap(struct sk_buff *skb, struct ip_tunnel *t,
 		    u8 *protocol, struct flowi4 *fl4);
+int __ip_tunnel_change_mtu(struct net_device *dev, int new_mtu, bool strict);
 int ip_tunnel_change_mtu(struct net_device *dev, int new_mtu);
 
 struct rtnl_link_stats64 *ip_tunnel_get_stats64(struct net_device *dev,
diff --git a/include/net/scm.h b/include/net/scm.h
index 262532d..59fa93c 100644
--- a/include/net/scm.h
+++ b/include/net/scm.h
@@ -21,6 +21,7 @@ struct scm_creds {
 struct scm_fp_list {
 	short			count;
 	short			max;
+	struct user_struct	*user;
 	struct file		*fp[SCM_MAX_FD];
 };
 
diff --git a/include/net/tcp.h b/include/net/tcp.h
index f6f8f03..ae6468f 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -447,7 +447,7 @@ const u8 *tcp_parse_md5sig_option(const struct tcphdr *th);
 
 void tcp_v4_send_check(struct sock *sk, struct sk_buff *skb);
 void tcp_v4_mtu_reduced(struct sock *sk);
-void tcp_req_err(struct sock *sk, u32 seq);
+void tcp_req_err(struct sock *sk, u32 seq, bool abort);
 int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb);
 struct sock *tcp_create_openreq_child(const struct sock *sk,
 				      struct request_sock *req,
diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index e2b712c..c21c38c 100644
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -343,7 +343,7 @@ void snd_hdac_bus_enter_link_reset(struct hdac_bus *bus);
 void snd_hdac_bus_exit_link_reset(struct hdac_bus *bus);
 
 void snd_hdac_bus_update_rirb(struct hdac_bus *bus);
-void snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status,
+int snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status,
 				    void (*ack)(struct hdac_bus *,
 						struct hdac_stream *));
 
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 56cf8e4..28ee5c2 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -94,5 +94,8 @@ sense_reason_t passthrough_parse_cdb(struct se_cmd *cmd,
 	sense_reason_t (*exec_cmd)(struct se_cmd *cmd));
 
 bool target_sense_desc_format(struct se_device *dev);
+sector_t target_to_linux_sector(struct se_device *dev, sector_t lb);
+bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib,
+				       struct request_queue *q, int block_size);
 
 #endif /* TARGET_CORE_BACKEND_H */
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 5d82816..e8c8c08 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -140,6 +140,8 @@ enum se_cmd_flags_table {
 	SCF_COMPARE_AND_WRITE		= 0x00080000,
 	SCF_COMPARE_AND_WRITE_POST	= 0x00100000,
 	SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = 0x00200000,
+	SCF_ACK_KREF			= 0x00400000,
+	SCF_USE_CPUID			= 0x00800000,
 };
 
 /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
@@ -187,6 +189,7 @@ enum target_sc_flags_table {
 	TARGET_SCF_BIDI_OP		= 0x01,
 	TARGET_SCF_ACK_KREF		= 0x02,
 	TARGET_SCF_UNKNOWN_SIZE		= 0x04,
+	TARGET_SCF_USE_CPUID	= 0x08,
 };
 
 /* fabric independent task management function values */
@@ -490,8 +493,9 @@ struct se_cmd {
 #define CMD_T_SENT		(1 << 4)
 #define CMD_T_STOP		(1 << 5)
 #define CMD_T_DEV_ACTIVE	(1 << 7)
-#define CMD_T_REQUEST_STOP	(1 << 8)
 #define CMD_T_BUSY		(1 << 9)
+#define CMD_T_TAS		(1 << 10)
+#define CMD_T_FABRIC_STOP	(1 << 11)
 	spinlock_t		t_state_lock;
 	struct kref		cmd_kref;
 	struct completion	t_transport_stop_comp;
@@ -511,9 +515,6 @@ struct se_cmd {
 
 	struct list_head	state_list;
 
-	/* old task stop completion, consider merging with some of the above */
-	struct completion	task_stop_comp;
-
 	/* backend private data */
 	void			*priv;
 
diff --git a/include/uapi/linux/ndctl.h b/include/uapi/linux/ndctl.h
index 5b4a4be..cc68b921 100644
--- a/include/uapi/linux/ndctl.h
+++ b/include/uapi/linux/ndctl.h
@@ -66,14 +66,18 @@ struct nd_cmd_ars_cap {
 	__u64 length;
 	__u32 status;
 	__u32 max_ars_out;
+	__u32 clear_err_unit;
+	__u32 reserved;
 } __packed;
 
 struct nd_cmd_ars_start {
 	__u64 address;
 	__u64 length;
 	__u16 type;
-	__u8 reserved[6];
+	__u8 flags;
+	__u8 reserved[5];
 	__u32 status;
+	__u32 scrub_time;
 } __packed;
 
 struct nd_cmd_ars_status {
@@ -81,11 +85,14 @@ struct nd_cmd_ars_status {
 	__u32 out_length;
 	__u64 address;
 	__u64 length;
+	__u64 restart_address;
+	__u64 restart_length;
 	__u16 type;
+	__u16 flags;
 	__u32 num_records;
 	struct nd_ars_record {
 		__u32 handle;
-		__u32 flags;
+		__u32 reserved;
 		__u64 err_address;
 		__u64 length;
 	} __packed records[0];
diff --git a/ipc/shm.c b/ipc/shm.c
index ed3027d..331fc1b 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -156,11 +156,12 @@ static inline struct shmid_kernel *shm_lock(struct ipc_namespace *ns, int id)
 	struct kern_ipc_perm *ipcp = ipc_lock(&shm_ids(ns), id);
 
 	/*
-	 * We raced in the idr lookup or with shm_destroy().  Either way, the
-	 * ID is busted.
+	 * Callers of shm_lock() must validate the status of the returned ipc
+	 * object pointer (as returned by ipc_lock()), and error out as
+	 * appropriate.
 	 */
-	WARN_ON(IS_ERR(ipcp));
-
+	if (IS_ERR(ipcp))
+		return (void *)ipcp;
 	return container_of(ipcp, struct shmid_kernel, shm_perm);
 }
 
@@ -186,18 +187,33 @@ static inline void shm_rmid(struct ipc_namespace *ns, struct shmid_kernel *s)
 }
 
 
-/* This is called by fork, once for every shm attach. */
-static void shm_open(struct vm_area_struct *vma)
+static int __shm_open(struct vm_area_struct *vma)
 {
 	struct file *file = vma->vm_file;
 	struct shm_file_data *sfd = shm_file_data(file);
 	struct shmid_kernel *shp;
 
 	shp = shm_lock(sfd->ns, sfd->id);
+
+	if (IS_ERR(shp))
+		return PTR_ERR(shp);
+
 	shp->shm_atim = get_seconds();
 	shp->shm_lprid = task_tgid_vnr(current);
 	shp->shm_nattch++;
 	shm_unlock(shp);
+	return 0;
+}
+
+/* This is called by fork, once for every shm attach. */
+static void shm_open(struct vm_area_struct *vma)
+{
+	int err = __shm_open(vma);
+	/*
+	 * We raced in the idr lookup or with shm_destroy().
+	 * Either way, the ID is busted.
+	 */
+	WARN_ON_ONCE(err);
 }
 
 /*
@@ -260,6 +276,14 @@ static void shm_close(struct vm_area_struct *vma)
 	down_write(&shm_ids(ns).rwsem);
 	/* remove from the list of attaches of the shm segment */
 	shp = shm_lock(ns, sfd->id);
+
+	/*
+	 * We raced in the idr lookup or with shm_destroy().
+	 * Either way, the ID is busted.
+	 */
+	if (WARN_ON_ONCE(IS_ERR(shp)))
+		goto done; /* no-op */
+
 	shp->shm_lprid = task_tgid_vnr(current);
 	shp->shm_dtim = get_seconds();
 	shp->shm_nattch--;
@@ -267,6 +291,7 @@ static void shm_close(struct vm_area_struct *vma)
 		shm_destroy(ns, shp);
 	else
 		shm_unlock(shp);
+done:
 	up_write(&shm_ids(ns).rwsem);
 }
 
@@ -388,17 +413,25 @@ static int shm_mmap(struct file *file, struct vm_area_struct *vma)
 	struct shm_file_data *sfd = shm_file_data(file);
 	int ret;
 
+	/*
+	 * In case of remap_file_pages() emulation, the file can represent
+	 * removed IPC ID: propogate shm_lock() error to caller.
+	 */
+	ret =__shm_open(vma);
+	if (ret)
+		return ret;
+
 	ret = sfd->file->f_op->mmap(sfd->file, vma);
-	if (ret != 0)
+	if (ret) {
+		shm_close(vma);
 		return ret;
+	}
 	sfd->vm_ops = vma->vm_ops;
 #ifdef CONFIG_MMU
 	WARN_ON(!sfd->vm_ops->fault);
 #endif
 	vma->vm_ops = &shm_vm_ops;
-	shm_open(vma);
-
-	return ret;
+	return 0;
 }
 
 static int shm_release(struct inode *ino, struct file *file)
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index d1d3e8f..2e7f7ab 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -2082,7 +2082,7 @@ static void adjust_branches(struct bpf_prog *prog, int pos, int delta)
 		/* adjust offset of jmps if necessary */
 		if (i < pos && i + insn->off + 1 > pos)
 			insn->off += delta;
-		else if (i > pos && i + insn->off + 1 < pos)
+		else if (i > pos + delta && i + insn->off + 1 <= pos + delta)
 			insn->off -= delta;
 	}
 }
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index c03a640..d27904c 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -58,6 +58,7 @@
 #include <linux/kthread.h>
 #include <linux/delay.h>
 #include <linux/atomic.h>
+#include <linux/cpuset.h>
 #include <net/sock.h>
 
 /*
@@ -2739,6 +2740,7 @@ out_unlock_rcu:
 out_unlock_threadgroup:
 	percpu_up_write(&cgroup_threadgroup_rwsem);
 	cgroup_kn_unlock(of->kn);
+	cpuset_post_attach_flush();
 	return ret ?: nbytes;
 }
 
@@ -4655,14 +4657,15 @@ static void css_free_work_fn(struct work_struct *work)
 
 	if (ss) {
 		/* css free path */
+		struct cgroup_subsys_state *parent = css->parent;
 		int id = css->id;
 
-		if (css->parent)
-			css_put(css->parent);
-
 		ss->css_free(css);
 		cgroup_idr_remove(&ss->css_idr, id);
 		cgroup_put(cgrp);
+
+		if (parent)
+			css_put(parent);
 	} else {
 		/* cgroup free path */
 		atomic_dec(&cgrp->root->nr_cgrps);
@@ -4758,6 +4761,7 @@ static void init_and_link_css(struct cgroup_subsys_state *css,
 	INIT_LIST_HEAD(&css->sibling);
 	INIT_LIST_HEAD(&css->children);
 	css->serial_nr = css_serial_nr_next++;
+	atomic_set(&css->online_cnt, 0);
 
 	if (cgroup_parent(cgrp)) {
 		css->parent = cgroup_css(cgroup_parent(cgrp), ss);
@@ -4780,6 +4784,10 @@ static int online_css(struct cgroup_subsys_state *css)
 	if (!ret) {
 		css->flags |= CSS_ONLINE;
 		rcu_assign_pointer(css->cgroup->subsys[ss->id], css);
+
+		atomic_inc(&css->online_cnt);
+		if (css->parent)
+			atomic_inc(&css->parent->online_cnt);
 	}
 	return ret;
 }
@@ -5017,10 +5025,15 @@ static void css_killed_work_fn(struct work_struct *work)
 		container_of(work, struct cgroup_subsys_state, destroy_work);
 
 	mutex_lock(&cgroup_mutex);
-	offline_css(css);
-	mutex_unlock(&cgroup_mutex);
 
-	css_put(css);
+	do {
+		offline_css(css);
+		css_put(css);
+		/* @css can't go away while we're holding cgroup_mutex */
+		css = css->parent;
+	} while (css && atomic_dec_and_test(&css->online_cnt));
+
+	mutex_unlock(&cgroup_mutex);
 }
 
 /* css kill confirmation processing requires process context, bounce */
@@ -5029,8 +5042,10 @@ static void css_killed_ref_fn(struct percpu_ref *ref)
 	struct cgroup_subsys_state *css =
 		container_of(ref, struct cgroup_subsys_state, refcnt);
 
-	INIT_WORK(&css->destroy_work, css_killed_work_fn);
-	queue_work(cgroup_destroy_wq, &css->destroy_work);
+	if (atomic_dec_and_test(&css->online_cnt)) {
+		INIT_WORK(&css->destroy_work, css_killed_work_fn);
+		queue_work(cgroup_destroy_wq, &css->destroy_work);
+	}
 }
 
 /**
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 3e945fc..41989ab 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -287,6 +287,8 @@ static struct cpuset top_cpuset = {
 static DEFINE_MUTEX(cpuset_mutex);
 static DEFINE_SPINLOCK(callback_lock);
 
+static struct workqueue_struct *cpuset_migrate_mm_wq;
+
 /*
  * CPU / memory hotplug is handled asynchronously.
  */
@@ -972,31 +974,51 @@ static int update_cpumask(struct cpuset *cs, struct cpuset *trialcs,
 }
 
 /*
- * cpuset_migrate_mm
- *
- *    Migrate memory region from one set of nodes to another.
- *
- *    Temporarilly set tasks mems_allowed to target nodes of migration,
- *    so that the migration code can allocate pages on these nodes.
- *
- *    While the mm_struct we are migrating is typically from some
- *    other task, the task_struct mems_allowed that we are hacking
- *    is for our current task, which must allocate new pages for that
- *    migrating memory region.
+ * Migrate memory region from one set of nodes to another.  This is
+ * performed asynchronously as it can be called from process migration path
+ * holding locks involved in process management.  All mm migrations are
+ * performed in the queued order and can be waited for by flushing
+ * cpuset_migrate_mm_wq.
  */
 
+struct cpuset_migrate_mm_work {
+	struct work_struct	work;
+	struct mm_struct	*mm;
+	nodemask_t		from;
+	nodemask_t		to;
+};
+
+static void cpuset_migrate_mm_workfn(struct work_struct *work)
+{
+	struct cpuset_migrate_mm_work *mwork =
+		container_of(work, struct cpuset_migrate_mm_work, work);
+
+	/* on a wq worker, no need to worry about %current's mems_allowed */
+	do_migrate_pages(mwork->mm, &mwork->from, &mwork->to, MPOL_MF_MOVE_ALL);
+	mmput(mwork->mm);
+	kfree(mwork);
+}
+
 static void cpuset_migrate_mm(struct mm_struct *mm, const nodemask_t *from,
 							const nodemask_t *to)
 {
-	struct task_struct *tsk = current;
-
-	tsk->mems_allowed = *to;
+	struct cpuset_migrate_mm_work *mwork;
 
-	do_migrate_pages(mm, from, to, MPOL_MF_MOVE_ALL);
+	mwork = kzalloc(sizeof(*mwork), GFP_KERNEL);
+	if (mwork) {
+		mwork->mm = mm;
+		mwork->from = *from;
+		mwork->to = *to;
+		INIT_WORK(&mwork->work, cpuset_migrate_mm_workfn);
+		queue_work(cpuset_migrate_mm_wq, &mwork->work);
+	} else {
+		mmput(mm);
+	}
+}
 
-	rcu_read_lock();
-	guarantee_online_mems(task_cs(tsk), &tsk->mems_allowed);
-	rcu_read_unlock();
+void cpuset_post_attach_flush(void)
+{
+	flush_workqueue(cpuset_migrate_mm_wq);
 }
 
 /*
@@ -1097,7 +1119,8 @@ static void update_tasks_nodemask(struct cpuset *cs)
 		mpol_rebind_mm(mm, &cs->mems_allowed);
 		if (migrate)
 			cpuset_migrate_mm(mm, &cs->old_mems_allowed, &newmems);
-		mmput(mm);
+		else
+			mmput(mm);
 	}
 	css_task_iter_end(&it);
 
@@ -1545,11 +1568,11 @@ static void cpuset_attach(struct cgroup_taskset *tset)
 			 * @old_mems_allowed is the right nodesets that we
 			 * migrate mm from.
 			 */
-			if (is_memory_migrate(cs)) {
+			if (is_memory_migrate(cs))
 				cpuset_migrate_mm(mm, &oldcs->old_mems_allowed,
 						  &cpuset_attach_nodemask_to);
-			}
-			mmput(mm);
+			else
+				mmput(mm);
 		}
 	}
 
@@ -1714,6 +1737,7 @@ out_unlock:
 	mutex_unlock(&cpuset_mutex);
 	kernfs_unbreak_active_protection(of->kn);
 	css_put(&cs->css);
+	flush_workqueue(cpuset_migrate_mm_wq);
 	return retval ?: nbytes;
 }
 
@@ -2359,6 +2383,9 @@ void __init cpuset_init_smp(void)
 	top_cpuset.effective_mems = node_states[N_MEMORY];
 
 	register_hotmemory_notifier(&cpuset_track_online_nodes_nb);
+
+	cpuset_migrate_mm_wq = alloc_ordered_workqueue("cpuset_migrate_mm", 0);
+	BUG_ON(!cpuset_migrate_mm_wq);
 }
 
 /**
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 5946460..6146148 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -64,8 +64,17 @@ static void remote_function(void *data)
 	struct task_struct *p = tfc->p;
 
 	if (p) {
-		tfc->ret = -EAGAIN;
-		if (task_cpu(p) != smp_processor_id() || !task_curr(p))
+		/* -EAGAIN */
+		if (task_cpu(p) != smp_processor_id())
+			return;
+
+		/*
+		 * Now that we're on right CPU with IRQs disabled, we can test
+		 * if we hit the right task without races.
+		 */
+
+		tfc->ret = -ESRCH; /* No such (running) process */
+		if (p != current)
 			return;
 	}
 
@@ -92,13 +101,17 @@ task_function_call(struct task_struct *p, remote_function_f func, void *info)
 		.p	= p,
 		.func	= func,
 		.info	= info,
-		.ret	= -ESRCH, /* No such (running) process */
+		.ret	= -EAGAIN,
 	};
+	int ret;
 
-	if (task_curr(p))
-		smp_call_function_single(task_cpu(p), remote_function, &data, 1);
+	do {
+		ret = smp_call_function_single(task_cpu(p), remote_function, &data, 1);
+		if (!ret)
+			ret = data.ret;
+	} while (ret == -EAGAIN);
 
-	return data.ret;
+	return ret;
 }
 
 /**
@@ -169,19 +182,6 @@ static bool is_kernel_event(struct perf_event *event)
  *    rely on ctx->is_active and therefore cannot use event_function_call().
  *    See perf_install_in_context().
  *
- * This is because we need a ctx->lock serialized variable (ctx->is_active)
- * to reliably determine if a particular task/context is scheduled in. The
- * task_curr() use in task_function_call() is racy in that a remote context
- * switch is not a single atomic operation.
- *
- * As is, the situation is 'safe' because we set rq->curr before we do the
- * actual context switch. This means that task_curr() will fail early, but
- * we'll continue spinning on ctx->is_active until we've passed
- * perf_event_task_sched_out().
- *
- * Without this ctx->lock serialized variable we could have race where we find
- * the task (and hence the context) would not be active while in fact they are.
- *
  * If ctx->nr_events, then ctx->is_active and cpuctx->task_ctx are set.
  */
 
@@ -212,7 +212,7 @@ static int event_function(void *info)
 	 */
 	if (ctx->task) {
 		if (ctx->task != current) {
-			ret = -EAGAIN;
+			ret = -ESRCH;
 			goto unlock;
 		}
 
@@ -276,10 +276,10 @@ static void event_function_call(struct perf_event *event, event_f func, void *da
 		return;
 	}
 
-again:
 	if (task == TASK_TOMBSTONE)
 		return;
 
+again:
 	if (!task_function_call(task, event_function, &efs))
 		return;
 
@@ -289,13 +289,15 @@ again:
 	 * a concurrent perf_event_context_sched_out().
 	 */
 	task = ctx->task;
-	if (task != TASK_TOMBSTONE) {
-		if (ctx->is_active) {
-			raw_spin_unlock_irq(&ctx->lock);
-			goto again;
-		}
-		func(event, NULL, ctx, data);
+	if (task == TASK_TOMBSTONE) {
+		raw_spin_unlock_irq(&ctx->lock);
+		return;
 	}
+	if (ctx->is_active) {
+		raw_spin_unlock_irq(&ctx->lock);
+		goto again;
+	}
+	func(event, NULL, ctx, data);
 	raw_spin_unlock_irq(&ctx->lock);
 }
 
@@ -314,6 +316,7 @@ again:
 enum event_type_t {
 	EVENT_FLEXIBLE = 0x1,
 	EVENT_PINNED = 0x2,
+	EVENT_TIME = 0x4,
 	EVENT_ALL = EVENT_FLEXIBLE | EVENT_PINNED,
 };
 
@@ -321,7 +324,13 @@ enum event_type_t {
  * perf_sched_events : >0 events exist
  * perf_cgroup_events: >0 per-cpu cgroup events exist on this cpu
  */
-struct static_key_deferred perf_sched_events __read_mostly;
+
+static void perf_sched_delayed(struct work_struct *work);
+DEFINE_STATIC_KEY_FALSE(perf_sched_events);
+static DECLARE_DELAYED_WORK(perf_sched_work, perf_sched_delayed);
+static DEFINE_MUTEX(perf_sched_mutex);
+static atomic_t perf_sched_count;
+
 static DEFINE_PER_CPU(atomic_t, perf_cgroup_events);
 static DEFINE_PER_CPU(int, perf_sched_cb_usages);
 
@@ -1288,16 +1297,18 @@ static u64 perf_event_time(struct perf_event *event)
 
 /*
  * Update the total_time_enabled and total_time_running fields for a event.
- * The caller of this function needs to hold the ctx->lock.
  */
 static void update_event_times(struct perf_event *event)
 {
 	struct perf_event_context *ctx = event->ctx;
 	u64 run_end;
 
+	lockdep_assert_held(&ctx->lock);
+
 	if (event->state < PERF_EVENT_STATE_INACTIVE ||
 	    event->group_leader->state < PERF_EVENT_STATE_INACTIVE)
 		return;
+
 	/*
 	 * in cgroup mode, time_enabled represents
 	 * the time the event was enabled AND active
@@ -1645,7 +1656,7 @@ out:
 
 static bool is_orphaned_event(struct perf_event *event)
 {
-	return event->state == PERF_EVENT_STATE_EXIT;
+	return event->state == PERF_EVENT_STATE_DEAD;
 }
 
 static inline int pmu_filter_match(struct perf_event *event)
@@ -1690,14 +1701,14 @@ event_sched_out(struct perf_event *event,
 
 	perf_pmu_disable(event->pmu);
 
+	event->tstamp_stopped = tstamp;
+	event->pmu->del(event, 0);
+	event->oncpu = -1;
 	event->state = PERF_EVENT_STATE_INACTIVE;
 	if (event->pending_disable) {
 		event->pending_disable = 0;
 		event->state = PERF_EVENT_STATE_OFF;
 	}
-	event->tstamp_stopped = tstamp;
-	event->pmu->del(event, 0);
-	event->oncpu = -1;
 
 	if (!is_software_event(event))
 		cpuctx->active_oncpu--;
@@ -1732,7 +1743,6 @@ group_sched_out(struct perf_event *group_event,
 }
 
 #define DETACH_GROUP	0x01UL
-#define DETACH_STATE	0x02UL
 
 /*
  * Cross CPU call to remove a performance event
@@ -1752,8 +1762,6 @@ __perf_remove_from_context(struct perf_event *event,
 	if (flags & DETACH_GROUP)
 		perf_group_detach(event);
 	list_del_event(event, ctx);
-	if (flags & DETACH_STATE)
-		event->state = PERF_EVENT_STATE_EXIT;
 
 	if (!ctx->nr_events && ctx->is_active) {
 		ctx->is_active = 0;
@@ -2063,14 +2071,27 @@ static void add_event_to_ctx(struct perf_event *event,
 	event->tstamp_stopped = tstamp;
 }
 
-static void task_ctx_sched_out(struct perf_cpu_context *cpuctx,
-			       struct perf_event_context *ctx);
+static void ctx_sched_out(struct perf_event_context *ctx,
+			  struct perf_cpu_context *cpuctx,
+			  enum event_type_t event_type);
 static void
 ctx_sched_in(struct perf_event_context *ctx,
 	     struct perf_cpu_context *cpuctx,
 	     enum event_type_t event_type,
 	     struct task_struct *task);
 
+static void task_ctx_sched_out(struct perf_cpu_context *cpuctx,
+			       struct perf_event_context *ctx)
+{
+	if (!cpuctx->task_ctx)
+		return;
+
+	if (WARN_ON_ONCE(ctx != cpuctx->task_ctx))
+		return;
+
+	ctx_sched_out(ctx, cpuctx, EVENT_ALL);
+}
+
 static void perf_event_sched_in(struct perf_cpu_context *cpuctx,
 				struct perf_event_context *ctx,
 				struct task_struct *task)
@@ -2097,49 +2118,68 @@ static void ctx_resched(struct perf_cpu_context *cpuctx,
 /*
  * Cross CPU call to install and enable a performance event
  *
- * Must be called with ctx->mutex held
+ * Very similar to remote_function() + event_function() but cannot assume that
+ * things like ctx->is_active and cpuctx->task_ctx are set.
  */
 static int  __perf_install_in_context(void *info)
 {
-	struct perf_event_context *ctx = info;
+	struct perf_event *event = info;
+	struct perf_event_context *ctx = event->ctx;
 	struct perf_cpu_context *cpuctx = __get_cpu_context(ctx);
 	struct perf_event_context *task_ctx = cpuctx->task_ctx;
+	bool activate = true;
+	int ret = 0;
 
 	raw_spin_lock(&cpuctx->ctx.lock);
 	if (ctx->task) {
 		raw_spin_lock(&ctx->lock);
-		/*
-		 * If we hit the 'wrong' task, we've since scheduled and
-		 * everything should be sorted, nothing to do!
-		 */
 		task_ctx = ctx;
-		if (ctx->task != current)
+
+		/* If we're on the wrong CPU, try again */
+		if (task_cpu(ctx->task) != smp_processor_id()) {
+			ret = -ESRCH;
 			goto unlock;
+		}
 
 		/*
-		 * If task_ctx is set, it had better be to us.
+		 * If we're on the right CPU, see if the task we target is
+		 * current, if not we don't have to activate the ctx, a future
+		 * context switch will do that for us.
 		 */
-		WARN_ON_ONCE(cpuctx->task_ctx != ctx && cpuctx->task_ctx);
+		if (ctx->task != current)
+			activate = false;
+		else
+			WARN_ON_ONCE(cpuctx->task_ctx && cpuctx->task_ctx != ctx);
+
 	} else if (task_ctx) {
 		raw_spin_lock(&task_ctx->lock);
 	}
 
-	ctx_resched(cpuctx, task_ctx);
+	if (activate) {
+		ctx_sched_out(ctx, cpuctx, EVENT_TIME);
+		add_event_to_ctx(event, ctx);
+		ctx_resched(cpuctx, task_ctx);
+	} else {
+		add_event_to_ctx(event, ctx);
+	}
+
 unlock:
 	perf_ctx_unlock(cpuctx, task_ctx);
 
-	return 0;
+	return ret;
 }
 
 /*
- * Attach a performance event to a context
+ * Attach a performance event to a context.
+ *
+ * Very similar to event_function_call, see comment there.
  */
 static void
 perf_install_in_context(struct perf_event_context *ctx,
 			struct perf_event *event,
 			int cpu)
 {
-	struct task_struct *task = NULL;
+	struct task_struct *task = READ_ONCE(ctx->task);
 
 	lockdep_assert_held(&ctx->mutex);
 
@@ -2147,40 +2187,46 @@ perf_install_in_context(struct perf_event_context *ctx,
 	if (event->cpu != -1)
 		event->cpu = cpu;
 
+	if (!task) {
+		cpu_function_call(cpu, __perf_install_in_context, event);
+		return;
+	}
+
+	/*
+	 * Should not happen, we validate the ctx is still alive before calling.
+	 */
+	if (WARN_ON_ONCE(task == TASK_TOMBSTONE))
+		return;
+
 	/*
 	 * Installing events is tricky because we cannot rely on ctx->is_active
 	 * to be set in case this is the nr_events 0 -> 1 transition.
-	 *
-	 * So what we do is we add the event to the list here, which will allow
-	 * a future context switch to DTRT and then send a racy IPI. If the IPI
-	 * fails to hit the right task, this means a context switch must have
-	 * happened and that will have taken care of business.
 	 */
-	raw_spin_lock_irq(&ctx->lock);
-	task = ctx->task;
+again:
 	/*
-	 * Worse, we cannot even rely on the ctx actually existing anymore. If
-	 * between find_get_context() and perf_install_in_context() the task
-	 * went through perf_event_exit_task() its dead and we should not be
-	 * adding new events.
+	 * Cannot use task_function_call() because we need to run on the task's
+	 * CPU regardless of whether its current or not.
 	 */
-	if (task == TASK_TOMBSTONE) {
+	if (!cpu_function_call(task_cpu(task), __perf_install_in_context, event))
+		return;
+
+	raw_spin_lock_irq(&ctx->lock);
+	task = ctx->task;
+	if (WARN_ON_ONCE(task == TASK_TOMBSTONE)) {
+		/*
+		 * Cannot happen because we already checked above (which also
+		 * cannot happen), and we hold ctx->mutex, which serializes us
+		 * against perf_event_exit_task_context().
+		 */
 		raw_spin_unlock_irq(&ctx->lock);
 		return;
 	}
-	update_context_time(ctx);
+	raw_spin_unlock_irq(&ctx->lock);
 	/*
-	 * Update cgrp time only if current cgrp matches event->cgrp.
-	 * Must be done before calling add_event_to_ctx().
+	 * Since !ctx->is_active doesn't mean anything, we must IPI
+	 * unconditionally.
 	 */
-	update_cgrp_time_from_event(event);
-	add_event_to_ctx(event, ctx);
-	raw_spin_unlock_irq(&ctx->lock);
-
-	if (task)
-		task_function_call(task, __perf_install_in_context, ctx);
-	else
-		cpu_function_call(cpu, __perf_install_in_context, ctx);
+	goto again;
 }
 
 /*
@@ -2219,17 +2265,18 @@ static void __perf_event_enable(struct perf_event *event,
 	    event->state <= PERF_EVENT_STATE_ERROR)
 		return;
 
-	update_context_time(ctx);
+	if (ctx->is_active)
+		ctx_sched_out(ctx, cpuctx, EVENT_TIME);
+
 	__perf_event_mark_enabled(event);
 
 	if (!ctx->is_active)
 		return;
 
 	if (!event_filter_match(event)) {
-		if (is_cgroup_event(event)) {
-			perf_cgroup_set_timestamp(current, ctx); // XXX ?
+		if (is_cgroup_event(event))
 			perf_cgroup_defer_enabled(event);
-		}
+		ctx_sched_in(ctx, cpuctx, EVENT_TIME, current);
 		return;
 	}
 
@@ -2237,8 +2284,10 @@ static void __perf_event_enable(struct perf_event *event,
 	 * If the event is in a group and isn't the group leader,
 	 * then don't put it on unless the group is on.
 	 */
-	if (leader != event && leader->state != PERF_EVENT_STATE_ACTIVE)
+	if (leader != event && leader->state != PERF_EVENT_STATE_ACTIVE) {
+		ctx_sched_in(ctx, cpuctx, EVENT_TIME, current);
 		return;
+	}
 
 	task_ctx = cpuctx->task_ctx;
 	if (ctx->task)
@@ -2344,24 +2393,33 @@ static void ctx_sched_out(struct perf_event_context *ctx,
 	}
 
 	ctx->is_active &= ~event_type;
+	if (!(ctx->is_active & EVENT_ALL))
+		ctx->is_active = 0;
+
 	if (ctx->task) {
 		WARN_ON_ONCE(cpuctx->task_ctx != ctx);
 		if (!ctx->is_active)
 			cpuctx->task_ctx = NULL;
 	}
 
-	update_context_time(ctx);
-	update_cgrp_time_from_cpuctx(cpuctx);
-	if (!ctx->nr_active)
+	is_active ^= ctx->is_active; /* changed bits */
+
+	if (is_active & EVENT_TIME) {
+		/* update (and stop) ctx time */
+		update_context_time(ctx);
+		update_cgrp_time_from_cpuctx(cpuctx);
+	}
+
+	if (!ctx->nr_active || !(is_active & EVENT_ALL))
 		return;
 
 	perf_pmu_disable(ctx->pmu);
-	if ((is_active & EVENT_PINNED) && (event_type & EVENT_PINNED)) {
+	if (is_active & EVENT_PINNED) {
 		list_for_each_entry(event, &ctx->pinned_groups, group_entry)
 			group_sched_out(event, cpuctx, ctx);
 	}
 
-	if ((is_active & EVENT_FLEXIBLE) && (event_type & EVENT_FLEXIBLE)) {
+	if (is_active & EVENT_FLEXIBLE) {
 		list_for_each_entry(event, &ctx->flexible_groups, group_entry)
 			group_sched_out(event, cpuctx, ctx);
 	}
@@ -2641,18 +2699,6 @@ void __perf_event_task_sched_out(struct task_struct *task,
 		perf_cgroup_sched_out(task, next);
 }
 
-static void task_ctx_sched_out(struct perf_cpu_context *cpuctx,
-			       struct perf_event_context *ctx)
-{
-	if (!cpuctx->task_ctx)
-		return;
-
-	if (WARN_ON_ONCE(ctx != cpuctx->task_ctx))
-		return;
-
-	ctx_sched_out(ctx, cpuctx, EVENT_ALL);
-}
-
 /*
  * Called with IRQs disabled
  */
@@ -2735,7 +2781,7 @@ ctx_sched_in(struct perf_event_context *ctx,
 	if (likely(!ctx->nr_events))
 		return;
 
-	ctx->is_active |= event_type;
+	ctx->is_active |= (event_type | EVENT_TIME);
 	if (ctx->task) {
 		if (!is_active)
 			cpuctx->task_ctx = ctx;
@@ -2743,18 +2789,24 @@ ctx_sched_in(struct perf_event_context *ctx,
 			WARN_ON_ONCE(cpuctx->task_ctx != ctx);
 	}
 
-	now = perf_clock();
-	ctx->timestamp = now;
-	perf_cgroup_set_timestamp(task, ctx);
+	is_active ^= ctx->is_active; /* changed bits */
+
+	if (is_active & EVENT_TIME) {
+		/* start ctx time */
+		now = perf_clock();
+		ctx->timestamp = now;
+		perf_cgroup_set_timestamp(task, ctx);
+	}
+
 	/*
 	 * First go through the list and put on any pinned groups
 	 * in order to give them the best chance of going on.
 	 */
-	if (!(is_active & EVENT_PINNED) && (event_type & EVENT_PINNED))
+	if (is_active & EVENT_PINNED)
 		ctx_pinned_sched_in(ctx, cpuctx);
 
 	/* Then walk through the lower prio flexible groups */
-	if (!(is_active & EVENT_FLEXIBLE) && (event_type & EVENT_FLEXIBLE))
+	if (is_active & EVENT_FLEXIBLE)
 		ctx_flexible_sched_in(ctx, cpuctx);
 }
 
@@ -3120,6 +3172,7 @@ static void perf_event_enable_on_exec(int ctxn)
 
 	cpuctx = __get_cpu_context(ctx);
 	perf_ctx_lock(cpuctx, ctx);
+	ctx_sched_out(ctx, cpuctx, EVENT_TIME);
 	list_for_each_entry(event, &ctx->event_list, event_entry)
 		enabled |= event_enable_on_exec(event, ctx);
 
@@ -3537,12 +3590,22 @@ static void unaccount_event(struct perf_event *event)
 	if (has_branch_stack(event))
 		dec = true;
 
-	if (dec)
-		static_key_slow_dec_deferred(&perf_sched_events);
+	if (dec) {
+		if (!atomic_add_unless(&perf_sched_count, -1, 1))
+			schedule_delayed_work(&perf_sched_work, HZ);
+	}
 
 	unaccount_event_cpu(event, event->cpu);
 }
 
+static void perf_sched_delayed(struct work_struct *work)
+{
+	mutex_lock(&perf_sched_mutex);
+	if (atomic_dec_and_test(&perf_sched_count))
+		static_branch_disable(&perf_sched_events);
+	mutex_unlock(&perf_sched_mutex);
+}
+
 /*
  * The following implement mutual exclusion of events on "exclusive" pmus
  * (PERF_PMU_CAP_EXCLUSIVE). Such pmus can only have one event scheduled
@@ -3752,30 +3815,42 @@ static void put_event(struct perf_event *event)
  */
 int perf_event_release_kernel(struct perf_event *event)
 {
-	struct perf_event_context *ctx;
+	struct perf_event_context *ctx = event->ctx;
 	struct perf_event *child, *tmp;
 
+	/*
+	 * If we got here through err_file: fput(event_file); we will not have
+	 * attached to a context yet.
+	 */
+	if (!ctx) {
+		WARN_ON_ONCE(event->attach_state &
+				(PERF_ATTACH_CONTEXT|PERF_ATTACH_GROUP));
+		goto no_ctx;
+	}
+
 	if (!is_kernel_event(event))
 		perf_remove_from_owner(event);
 
 	ctx = perf_event_ctx_lock(event);
 	WARN_ON_ONCE(ctx->parent_ctx);
-	perf_remove_from_context(event, DETACH_GROUP | DETACH_STATE);
-	perf_event_ctx_unlock(event, ctx);
+	perf_remove_from_context(event, DETACH_GROUP);
 
+	raw_spin_lock_irq(&ctx->lock);
 	/*
-	 * At this point we must have event->state == PERF_EVENT_STATE_EXIT,
-	 * either from the above perf_remove_from_context() or through
-	 * perf_event_exit_event().
+	 * Mark this even as STATE_DEAD, there is no external reference to it
+	 * anymore.
 	 *
-	 * Therefore, anybody acquiring event->child_mutex after the below
-	 * loop _must_ also see this, most importantly inherit_event() which
-	 * will avoid placing more children on the list.
+	 * Anybody acquiring event->child_mutex after the below loop _must_
+	 * also see this, most importantly inherit_event() which will avoid
+	 * placing more children on the list.
 	 *
 	 * Thus this guarantees that we will in fact observe and kill _ALL_
 	 * child events.
 	 */
-	WARN_ON_ONCE(event->state != PERF_EVENT_STATE_EXIT);
+	event->state = PERF_EVENT_STATE_DEAD;
+	raw_spin_unlock_irq(&ctx->lock);
+
+	perf_event_ctx_unlock(event, ctx);
 
 again:
 	mutex_lock(&event->child_mutex);
@@ -3830,8 +3905,8 @@ again:
 	}
 	mutex_unlock(&event->child_mutex);
 
-	/* Must be the last reference */
-	put_event(event);
+no_ctx:
+	put_event(event); /* Must be the 'last' reference */
 	return 0;
 }
 EXPORT_SYMBOL_GPL(perf_event_release_kernel);
@@ -3988,7 +4063,7 @@ static bool is_event_hup(struct perf_event *event)
 {
 	bool no_children;
 
-	if (event->state != PERF_EVENT_STATE_EXIT)
+	if (event->state > PERF_EVENT_STATE_EXIT)
 		return false;
 
 	mutex_lock(&event->child_mutex);
@@ -7769,8 +7844,28 @@ static void account_event(struct perf_event *event)
 	if (is_cgroup_event(event))
 		inc = true;
 
-	if (inc)
-		static_key_slow_inc(&perf_sched_events.key);
+	if (inc) {
+		if (atomic_inc_not_zero(&perf_sched_count))
+			goto enabled;
+
+		mutex_lock(&perf_sched_mutex);
+		if (!atomic_read(&perf_sched_count)) {
+			static_branch_enable(&perf_sched_events);
+			/*
+			 * Guarantee that all CPUs observe they key change and
+			 * call the perf scheduling hooks before proceeding to
+			 * install events that need them.
+			 */
+			synchronize_sched();
+		}
+		/*
+		 * Now that we have waited for the sync_sched(), allow further
+		 * increments to by-pass the mutex.
+		 */
+		atomic_inc(&perf_sched_count);
+		mutex_unlock(&perf_sched_mutex);
+	}
+enabled:
 
 	account_event_cpu(event, event->cpu);
 }
@@ -8389,10 +8484,19 @@ SYSCALL_DEFINE5(perf_event_open,
 	if (move_group) {
 		gctx = group_leader->ctx;
 		mutex_lock_double(&gctx->mutex, &ctx->mutex);
+		if (gctx->task == TASK_TOMBSTONE) {
+			err = -ESRCH;
+			goto err_locked;
+		}
 	} else {
 		mutex_lock(&ctx->mutex);
 	}
 
+	if (ctx->task == TASK_TOMBSTONE) {
+		err = -ESRCH;
+		goto err_locked;
+	}
+
 	if (!perf_event_validate_size(event)) {
 		err = -E2BIG;
 		goto err_locked;
@@ -8509,7 +8613,12 @@ err_context:
 	perf_unpin_context(ctx);
 	put_ctx(ctx);
 err_alloc:
-	free_event(event);
+	/*
+	 * If event_file is set, the fput() above will have called ->release()
+	 * and that will take care of freeing the event.
+	 */
+	if (!event_file)
+		free_event(event);
 err_cpus:
 	put_online_cpus();
 err_task:
@@ -8563,12 +8672,14 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu,
 
 	WARN_ON_ONCE(ctx->parent_ctx);
 	mutex_lock(&ctx->mutex);
+	if (ctx->task == TASK_TOMBSTONE) {
+		err = -ESRCH;
+		goto err_unlock;
+	}
+
 	if (!exclusive_event_installable(event, ctx)) {
-		mutex_unlock(&ctx->mutex);
-		perf_unpin_context(ctx);
-		put_ctx(ctx);
 		err = -EBUSY;
-		goto err_free;
+		goto err_unlock;
 	}
 
 	perf_install_in_context(ctx, event, cpu);
@@ -8577,6 +8688,10 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu,
 
 	return event;
 
+err_unlock:
+	mutex_unlock(&ctx->mutex);
+	perf_unpin_context(ctx);
+	put_ctx(ctx);
 err_free:
 	free_event(event);
 err:
@@ -8695,7 +8810,7 @@ perf_event_exit_event(struct perf_event *child_event,
 	if (parent_event)
 		perf_group_detach(child_event);
 	list_del_event(child_event, child_ctx);
-	child_event->state = PERF_EVENT_STATE_EXIT; /* see perf_event_release_kernel() */
+	child_event->state = PERF_EVENT_STATE_EXIT; /* is_event_hup() */
 	raw_spin_unlock_irq(&child_ctx->lock);
 
 	/*
@@ -9206,7 +9321,7 @@ static void perf_event_init_cpu(int cpu)
 	struct swevent_htable *swhash = &per_cpu(swevent_htable, cpu);
 
 	mutex_lock(&swhash->hlist_mutex);
-	if (swhash->hlist_refcount > 0) {
+	if (swhash->hlist_refcount > 0 && !swevent_hlist_deref(swhash)) {
 		struct swevent_hlist *hlist;
 
 		hlist = kzalloc_node(sizeof(*hlist), GFP_KERNEL, cpu_to_node(cpu));
@@ -9282,11 +9397,9 @@ perf_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
 	switch (action & ~CPU_TASKS_FROZEN) {
 
 	case CPU_UP_PREPARE:
-	case CPU_DOWN_FAILED:
 		perf_event_init_cpu(cpu);
 		break;
 
-	case CPU_UP_CANCELED:
 	case CPU_DOWN_PREPARE:
 		perf_event_exit_cpu(cpu);
 		break;
@@ -9315,9 +9428,6 @@ void __init perf_event_init(void)
 	ret = init_hw_breakpoint();
 	WARN(ret, "hw_breakpoint initialization failed with: %d", ret);
 
-	/* do not patch jump label more than once per second */
-	jump_label_rate_limit(&perf_sched_events, HZ);
-
 	/*
 	 * Build time assertion that we keep the data_head at the intended
 	 * location.  IOW, validation we got the __reserved[] size right.
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 60ace56..716547f 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -292,7 +292,7 @@ LIST_HEAD(all_lock_classes);
 #define __classhashfn(key)	hash_long((unsigned long)key, CLASSHASH_BITS)
 #define classhashentry(key)	(classhash_table + __classhashfn((key)))
 
-static struct list_head classhash_table[CLASSHASH_SIZE];
+static struct hlist_head classhash_table[CLASSHASH_SIZE];
 
 /*
  * We put the lock dependency chains into a hash-table as well, to cache
@@ -303,7 +303,7 @@ static struct list_head classhash_table[CLASSHASH_SIZE];
 #define __chainhashfn(chain)	hash_long(chain, CHAINHASH_BITS)
 #define chainhashentry(chain)	(chainhash_table + __chainhashfn((chain)))
 
-static struct list_head chainhash_table[CHAINHASH_SIZE];
+static struct hlist_head chainhash_table[CHAINHASH_SIZE];
 
 /*
  * The hash key of the lock dependency chains is a hash itself too:
@@ -666,7 +666,7 @@ static inline struct lock_class *
 look_up_lock_class(struct lockdep_map *lock, unsigned int subclass)
 {
 	struct lockdep_subclass_key *key;
-	struct list_head *hash_head;
+	struct hlist_head *hash_head;
 	struct lock_class *class;
 
 #ifdef CONFIG_DEBUG_LOCKDEP
@@ -719,7 +719,7 @@ look_up_lock_class(struct lockdep_map *lock, unsigned int subclass)
 	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
 		return NULL;
 
-	list_for_each_entry_rcu(class, hash_head, hash_entry) {
+	hlist_for_each_entry_rcu(class, hash_head, hash_entry) {
 		if (class->key == key) {
 			/*
 			 * Huh! same key, different name? Did someone trample
@@ -742,7 +742,7 @@ static inline struct lock_class *
 register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
 {
 	struct lockdep_subclass_key *key;
-	struct list_head *hash_head;
+	struct hlist_head *hash_head;
 	struct lock_class *class;
 
 	DEBUG_LOCKS_WARN_ON(!irqs_disabled());
@@ -774,7 +774,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
 	 * We have to do the hash-walk again, to avoid races
 	 * with another CPU:
 	 */
-	list_for_each_entry_rcu(class, hash_head, hash_entry) {
+	hlist_for_each_entry_rcu(class, hash_head, hash_entry) {
 		if (class->key == key)
 			goto out_unlock_set;
 	}
@@ -805,7 +805,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
 	 * We use RCU's safe list-add method to make
 	 * parallel walking of the hash-list safe:
 	 */
-	list_add_tail_rcu(&class->hash_entry, hash_head);
+	hlist_add_head_rcu(&class->hash_entry, hash_head);
 	/*
 	 * Add it to the global list of classes:
 	 */
@@ -1822,7 +1822,7 @@ check_deadlock(struct task_struct *curr, struct held_lock *next,
  */
 static int
 check_prev_add(struct task_struct *curr, struct held_lock *prev,
-	       struct held_lock *next, int distance, int trylock_loop)
+	       struct held_lock *next, int distance, int *stack_saved)
 {
 	struct lock_list *entry;
 	int ret;
@@ -1883,8 +1883,11 @@ check_prev_add(struct task_struct *curr, struct held_lock *prev,
 		}
 	}
 
-	if (!trylock_loop && !save_trace(&trace))
-		return 0;
+	if (!*stack_saved) {
+		if (!save_trace(&trace))
+			return 0;
+		*stack_saved = 1;
+	}
 
 	/*
 	 * Ok, all validations passed, add the new lock
@@ -1907,6 +1910,8 @@ check_prev_add(struct task_struct *curr, struct held_lock *prev,
 	 * Debugging printouts:
 	 */
 	if (verbose(hlock_class(prev)) || verbose(hlock_class(next))) {
+		/* We drop graph lock, so another thread can overwrite trace. */
+		*stack_saved = 0;
 		graph_unlock();
 		printk("\n new dependency: ");
 		print_lock_name(hlock_class(prev));
@@ -1929,7 +1934,7 @@ static int
 check_prevs_add(struct task_struct *curr, struct held_lock *next)
 {
 	int depth = curr->lockdep_depth;
-	int trylock_loop = 0;
+	int stack_saved = 0;
 	struct held_lock *hlock;
 
 	/*
@@ -1956,7 +1961,7 @@ check_prevs_add(struct task_struct *curr, struct held_lock *next)
 		 */
 		if (hlock->read != 2 && hlock->check) {
 			if (!check_prev_add(curr, hlock, next,
-						distance, trylock_loop))
+						distance, &stack_saved))
 				return 0;
 			/*
 			 * Stop after the first non-trylock entry,
@@ -1979,7 +1984,6 @@ check_prevs_add(struct task_struct *curr, struct held_lock *next)
 		if (curr->held_locks[depth].irq_context !=
 				curr->held_locks[depth-1].irq_context)
 			break;
-		trylock_loop = 1;
 	}
 	return 1;
 out_bug:
@@ -2017,7 +2021,7 @@ static inline int lookup_chain_cache(struct task_struct *curr,
 				     u64 chain_key)
 {
 	struct lock_class *class = hlock_class(hlock);
-	struct list_head *hash_head = chainhashentry(chain_key);
+	struct hlist_head *hash_head = chainhashentry(chain_key);
 	struct lock_chain *chain;
 	struct held_lock *hlock_curr;
 	int i, j;
@@ -2033,7 +2037,7 @@ static inline int lookup_chain_cache(struct task_struct *curr,
 	 * We can walk it lock-free, because entries only get added
 	 * to the hash:
 	 */
-	list_for_each_entry_rcu(chain, hash_head, entry) {
+	hlist_for_each_entry_rcu(chain, hash_head, entry) {
 		if (chain->chain_key == chain_key) {
 cache_hit:
 			debug_atomic_inc(chain_lookup_hits);
@@ -2057,7 +2061,7 @@ cache_hit:
 	/*
 	 * We have to walk the chain again locked - to avoid duplicates:
 	 */
-	list_for_each_entry(chain, hash_head, entry) {
+	hlist_for_each_entry(chain, hash_head, entry) {
 		if (chain->chain_key == chain_key) {
 			graph_unlock();
 			goto cache_hit;
@@ -2091,7 +2095,7 @@ cache_hit:
 		}
 		chain_hlocks[chain->base + j] = class - lock_classes;
 	}
-	list_add_tail_rcu(&chain->entry, hash_head);
+	hlist_add_head_rcu(&chain->entry, hash_head);
 	debug_atomic_inc(chain_lookup_misses);
 	inc_chains();
 
@@ -3875,7 +3879,7 @@ void lockdep_reset(void)
 	nr_process_chains = 0;
 	debug_locks = 1;
 	for (i = 0; i < CHAINHASH_SIZE; i++)
-		INIT_LIST_HEAD(chainhash_table + i);
+		INIT_HLIST_HEAD(chainhash_table + i);
 	raw_local_irq_restore(flags);
 }
 
@@ -3894,7 +3898,7 @@ static void zap_class(struct lock_class *class)
 	/*
 	 * Unhash the class and remove it from the all_lock_classes list:
 	 */
-	list_del_rcu(&class->hash_entry);
+	hlist_del_rcu(&class->hash_entry);
 	list_del_rcu(&class->lock_entry);
 
 	RCU_INIT_POINTER(class->key, NULL);
@@ -3917,7 +3921,7 @@ static inline int within(const void *addr, void *start, unsigned long size)
 void lockdep_free_key_range(void *start, unsigned long size)
 {
 	struct lock_class *class;
-	struct list_head *head;
+	struct hlist_head *head;
 	unsigned long flags;
 	int i;
 	int locked;
@@ -3930,9 +3934,7 @@ void lockdep_free_key_range(void *start, unsigned long size)
 	 */
 	for (i = 0; i < CLASSHASH_SIZE; i++) {
 		head = classhash_table + i;
-		if (list_empty(head))
-			continue;
-		list_for_each_entry_rcu(class, head, hash_entry) {
+		hlist_for_each_entry_rcu(class, head, hash_entry) {
 			if (within(class->key, start, size))
 				zap_class(class);
 			else if (within(class->name, start, size))
@@ -3962,7 +3964,7 @@ void lockdep_free_key_range(void *start, unsigned long size)
 void lockdep_reset_lock(struct lockdep_map *lock)
 {
 	struct lock_class *class;
-	struct list_head *head;
+	struct hlist_head *head;
 	unsigned long flags;
 	int i, j;
 	int locked;
@@ -3987,9 +3989,7 @@ void lockdep_reset_lock(struct lockdep_map *lock)
 	locked = graph_lock();
 	for (i = 0; i < CLASSHASH_SIZE; i++) {
 		head = classhash_table + i;
-		if (list_empty(head))
-			continue;
-		list_for_each_entry_rcu(class, head, hash_entry) {
+		hlist_for_each_entry_rcu(class, head, hash_entry) {
 			int match = 0;
 
 			for (j = 0; j < NR_LOCKDEP_CACHING_CLASSES; j++)
@@ -4027,10 +4027,10 @@ void lockdep_init(void)
 		return;
 
 	for (i = 0; i < CLASSHASH_SIZE; i++)
-		INIT_LIST_HEAD(classhash_table + i);
+		INIT_HLIST_HEAD(classhash_table + i);
 
 	for (i = 0; i < CHAINHASH_SIZE; i++)
-		INIT_LIST_HEAD(chainhash_table + i);
+		INIT_HLIST_HEAD(chainhash_table + i);
 
 	lockdep_initialized = 1;
 }
diff --git a/kernel/memremap.c b/kernel/memremap.c
index 70ee377..b981a7b 100644
--- a/kernel/memremap.c
+++ b/kernel/memremap.c
@@ -114,7 +114,7 @@ EXPORT_SYMBOL(memunmap);
 
 static void devm_memremap_release(struct device *dev, void *res)
 {
-	memunmap(res);
+	memunmap(*(void **)res);
 }
 
 static int devm_memremap_match(struct device *dev, void *res, void *match_data)
@@ -136,8 +136,10 @@ void *devm_memremap(struct device *dev, resource_size_t offset,
 	if (addr) {
 		*ptr = addr;
 		devres_add(dev, ptr);
-	} else
+	} else {
 		devres_free(ptr);
+		return ERR_PTR(-ENXIO);
+	}
 
 	return addr;
 }
@@ -150,7 +152,7 @@ void devm_memunmap(struct device *dev, void *addr)
 }
 EXPORT_SYMBOL(devm_memunmap);
 
-pfn_t phys_to_pfn_t(phys_addr_t addr, unsigned long flags)
+pfn_t phys_to_pfn_t(phys_addr_t addr, u64 flags)
 {
 	return __pfn_to_pfn_t(addr >> PAGE_SHIFT, flags);
 }
diff --git a/kernel/module.c b/kernel/module.c
index 8358f46..794ebe8 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -303,6 +303,9 @@ struct load_info {
 	struct _ddebug *debug;
 	unsigned int num_debug;
 	bool sig_ok;
+#ifdef CONFIG_KALLSYMS
+	unsigned long mod_kallsyms_init_off;
+#endif
 	struct {
 		unsigned int sym, str, mod, vers, info, pcpu;
 	} index;
@@ -981,6 +984,8 @@ SYSCALL_DEFINE2(delete_module, const char __user *, name_user,
 		mod->exit();
 	blocking_notifier_call_chain(&module_notify_list,
 				     MODULE_STATE_GOING, mod);
+	ftrace_release_mod(mod);
+
 	async_synchronize_full();
 
 	/* Store the name of the last unloaded module for diagnostic purposes */
@@ -2480,10 +2485,21 @@ static void layout_symtab(struct module *mod, struct load_info *info)
 	strsect->sh_flags |= SHF_ALLOC;
 	strsect->sh_entsize = get_offset(mod, &mod->init_layout.size, strsect,
 					 info->index.str) | INIT_OFFSET_MASK;
-	mod->init_layout.size = debug_align(mod->init_layout.size);
 	pr_debug("\t%s\n", info->secstrings + strsect->sh_name);
+
+	/* We'll tack temporary mod_kallsyms on the end. */
+	mod->init_layout.size = ALIGN(mod->init_layout.size,
+				      __alignof__(struct mod_kallsyms));
+	info->mod_kallsyms_init_off = mod->init_layout.size;
+	mod->init_layout.size += sizeof(struct mod_kallsyms);
+	mod->init_layout.size = debug_align(mod->init_layout.size);
 }
 
+/*
+ * We use the full symtab and strtab which layout_symtab arranged to
+ * be appended to the init section.  Later we switch to the cut-down
+ * core-only ones.
+ */
 static void add_kallsyms(struct module *mod, const struct load_info *info)
 {
 	unsigned int i, ndst;
@@ -2492,29 +2508,34 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
 	char *s;
 	Elf_Shdr *symsec = &info->sechdrs[info->index.sym];
 
-	mod->symtab = (void *)symsec->sh_addr;
-	mod->num_symtab = symsec->sh_size / sizeof(Elf_Sym);
+	/* Set up to point into init section. */
+	mod->kallsyms = mod->init_layout.base + info->mod_kallsyms_init_off;
+
+	mod->kallsyms->symtab = (void *)symsec->sh_addr;
+	mod->kallsyms->num_symtab = symsec->sh_size / sizeof(Elf_Sym);
 	/* Make sure we get permanent strtab: don't use info->strtab. */
-	mod->strtab = (void *)info->sechdrs[info->index.str].sh_addr;
+	mod->kallsyms->strtab = (void *)info->sechdrs[info->index.str].sh_addr;
 
 	/* Set types up while we still have access to sections. */
-	for (i = 0; i < mod->num_symtab; i++)
-		mod->symtab[i].st_info = elf_type(&mod->symtab[i], info);
-
-	mod->core_symtab = dst = mod->core_layout.base + info->symoffs;
-	mod->core_strtab = s = mod->core_layout.base + info->stroffs;
-	src = mod->symtab;
-	for (ndst = i = 0; i < mod->num_symtab; i++) {
+	for (i = 0; i < mod->kallsyms->num_symtab; i++)
+		mod->kallsyms->symtab[i].st_info
+			= elf_type(&mod->kallsyms->symtab[i], info);
+
+	/* Now populate the cut down core kallsyms for after init. */
+	mod->core_kallsyms.symtab = dst = mod->core_layout.base + info->symoffs;
+	mod->core_kallsyms.strtab = s = mod->core_layout.base + info->stroffs;
+	src = mod->kallsyms->symtab;
+	for (ndst = i = 0; i < mod->kallsyms->num_symtab; i++) {
 		if (i == 0 ||
 		    is_core_symbol(src+i, info->sechdrs, info->hdr->e_shnum,
 				   info->index.pcpu)) {
 			dst[ndst] = src[i];
-			dst[ndst++].st_name = s - mod->core_strtab;
-			s += strlcpy(s, &mod->strtab[src[i].st_name],
+			dst[ndst++].st_name = s - mod->core_kallsyms.strtab;
+			s += strlcpy(s, &mod->kallsyms->strtab[src[i].st_name],
 				     KSYM_NAME_LEN) + 1;
 		}
 	}
-	mod->core_num_syms = ndst;
+	mod->core_kallsyms.num_symtab = ndst;
 }
 #else
 static inline void layout_symtab(struct module *mod, struct load_info *info)
@@ -3263,9 +3284,8 @@ static noinline int do_init_module(struct module *mod)
 	module_put(mod);
 	trim_init_extable(mod);
 #ifdef CONFIG_KALLSYMS
-	mod->num_symtab = mod->core_num_syms;
-	mod->symtab = mod->core_symtab;
-	mod->strtab = mod->core_strtab;
+	/* Switch to core kallsyms now init is done: kallsyms may be walking! */
+	rcu_assign_pointer(mod->kallsyms, &mod->core_kallsyms);
 #endif
 	mod_tree_remove_init(mod);
 	disable_ro_nx(&mod->init_layout);
@@ -3295,6 +3315,7 @@ fail:
 	module_put(mod);
 	blocking_notifier_call_chain(&module_notify_list,
 				     MODULE_STATE_GOING, mod);
+	ftrace_release_mod(mod);
 	free_module(mod);
 	wake_up_all(&module_wq);
 	return ret;
@@ -3371,6 +3392,7 @@ static int complete_formation(struct module *mod, struct load_info *info)
 	mod->state = MODULE_STATE_COMING;
 	mutex_unlock(&module_mutex);
 
+	ftrace_module_enable(mod);
 	blocking_notifier_call_chain(&module_notify_list,
 				     MODULE_STATE_COMING, mod);
 	return 0;
@@ -3496,7 +3518,7 @@ static int load_module(struct load_info *info, const char __user *uargs,
 
 	/* Module is ready to execute: parsing args may do that. */
 	after_dashes = parse_args(mod->name, mod->args, mod->kp, mod->num_kp,
-				  -32768, 32767, NULL,
+				  -32768, 32767, mod,
 				  unknown_module_param_cb);
 	if (IS_ERR(after_dashes)) {
 		err = PTR_ERR(after_dashes);
@@ -3627,6 +3649,11 @@ static inline int is_arm_mapping_symbol(const char *str)
 	       && (str[2] == '\0' || str[2] == '.');
 }
 
+static const char *symname(struct mod_kallsyms *kallsyms, unsigned int symnum)
+{
+	return kallsyms->strtab + kallsyms->symtab[symnum].st_name;
+}
+
 static const char *get_ksymbol(struct module *mod,
 			       unsigned long addr,
 			       unsigned long *size,
@@ -3634,6 +3661,7 @@ static const char *get_ksymbol(struct module *mod,
 {
 	unsigned int i, best = 0;
 	unsigned long nextval;
+	struct mod_kallsyms *kallsyms = rcu_dereference_sched(mod->kallsyms);
 
 	/* At worse, next value is at end of module */
 	if (within_module_init(addr, mod))
@@ -3643,32 +3671,32 @@ static const char *get_ksymbol(struct module *mod,
 
 	/* Scan for closest preceding symbol, and next symbol. (ELF
 	   starts real symbols at 1). */
-	for (i = 1; i < mod->num_symtab; i++) {
-		if (mod->symtab[i].st_shndx == SHN_UNDEF)
+	for (i = 1; i < kallsyms->num_symtab; i++) {
+		if (kallsyms->symtab[i].st_shndx == SHN_UNDEF)
 			continue;
 
 		/* We ignore unnamed symbols: they're uninformative
 		 * and inserted at a whim. */
-		if (mod->symtab[i].st_value <= addr
-		    && mod->symtab[i].st_value > mod->symtab[best].st_value
-		    && *(mod->strtab + mod->symtab[i].st_name) != '\0'
-		    && !is_arm_mapping_symbol(mod->strtab + mod->symtab[i].st_name))
+		if (*symname(kallsyms, i) == '\0'
+		    || is_arm_mapping_symbol(symname(kallsyms, i)))
+			continue;
+
+		if (kallsyms->symtab[i].st_value <= addr
+		    && kallsyms->symtab[i].st_value > kallsyms->symtab[best].st_value)
 			best = i;
-		if (mod->symtab[i].st_value > addr
-		    && mod->symtab[i].st_value < nextval
-		    && *(mod->strtab + mod->symtab[i].st_name) != '\0'
-		    && !is_arm_mapping_symbol(mod->strtab + mod->symtab[i].st_name))
-			nextval = mod->symtab[i].st_value;
+		if (kallsyms->symtab[i].st_value > addr
+		    && kallsyms->symtab[i].st_value < nextval)
+			nextval = kallsyms->symtab[i].st_value;
 	}
 
 	if (!best)
 		return NULL;
 
 	if (size)
-		*size = nextval - mod->symtab[best].st_value;
+		*size = nextval - kallsyms->symtab[best].st_value;
 	if (offset)
-		*offset = addr - mod->symtab[best].st_value;
-	return mod->strtab + mod->symtab[best].st_name;
+		*offset = addr - kallsyms->symtab[best].st_value;
+	return symname(kallsyms, best);
 }
 
 /* For kallsyms to ask for address resolution.  NULL means not found.  Careful
@@ -3758,19 +3786,21 @@ int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
 
 	preempt_disable();
 	list_for_each_entry_rcu(mod, &modules, list) {
+		struct mod_kallsyms *kallsyms;
+
 		if (mod->state == MODULE_STATE_UNFORMED)
 			continue;
-		if (symnum < mod->num_symtab) {
-			*value = mod->symtab[symnum].st_value;
-			*type = mod->symtab[symnum].st_info;
-			strlcpy(name, mod->strtab + mod->symtab[symnum].st_name,
-				KSYM_NAME_LEN);
+		kallsyms = rcu_dereference_sched(mod->kallsyms);
+		if (symnum < kallsyms->num_symtab) {
+			*value = kallsyms->symtab[symnum].st_value;
+			*type = kallsyms->symtab[symnum].st_info;
+			strlcpy(name, symname(kallsyms, symnum), KSYM_NAME_LEN);
 			strlcpy(module_name, mod->name, MODULE_NAME_LEN);
 			*exported = is_exported(name, *value, mod);
 			preempt_enable();
 			return 0;
 		}
-		symnum -= mod->num_symtab;
+		symnum -= kallsyms->num_symtab;
 	}
 	preempt_enable();
 	return -ERANGE;
@@ -3779,11 +3809,12 @@ int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
 static unsigned long mod_find_symname(struct module *mod, const char *name)
 {
 	unsigned int i;
+	struct mod_kallsyms *kallsyms = rcu_dereference_sched(mod->kallsyms);
 
-	for (i = 0; i < mod->num_symtab; i++)
-		if (strcmp(name, mod->strtab+mod->symtab[i].st_name) == 0 &&
-		    mod->symtab[i].st_info != 'U')
-			return mod->symtab[i].st_value;
+	for (i = 0; i < kallsyms->num_symtab; i++)
+		if (strcmp(name, symname(kallsyms, i)) == 0 &&
+		    kallsyms->symtab[i].st_info != 'U')
+			return kallsyms->symtab[i].st_value;
 	return 0;
 }
 
@@ -3822,11 +3853,14 @@ int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
 	module_assert_mutex();
 
 	list_for_each_entry(mod, &modules, list) {
+		/* We hold module_mutex: no need for rcu_dereference_sched */
+		struct mod_kallsyms *kallsyms = mod->kallsyms;
+
 		if (mod->state == MODULE_STATE_UNFORMED)
 			continue;
-		for (i = 0; i < mod->num_symtab; i++) {
-			ret = fn(data, mod->strtab + mod->symtab[i].st_name,
-				 mod, mod->symtab[i].st_value);
+		for (i = 0; i < kallsyms->num_symtab; i++) {
+			ret = fn(data, symname(kallsyms, i),
+				 mod, kallsyms->symtab[i].st_value);
 			if (ret != 0)
 				return ret;
 		}
diff --git a/kernel/resource.c b/kernel/resource.c
index 09c0597..3669d1b 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -1083,9 +1083,10 @@ struct resource * __request_region(struct resource *parent,
 		if (!conflict)
 			break;
 		if (conflict != parent) {
-			parent = conflict;
-			if (!(conflict->flags & IORESOURCE_BUSY))
+			if (!(conflict->flags & IORESOURCE_BUSY)) {
+				parent = conflict;
 				continue;
+			}
 		}
 		if (conflict->flags & flags & IORESOURCE_MUXED) {
 			add_wait_queue(&muxed_resource_wait, &wait);
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index cd64c97..57b939c 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -420,7 +420,7 @@ static void replenish_dl_entity(struct sched_dl_entity *dl_se,
 	 * entity.
 	 */
 	if (dl_time_before(dl_se->deadline, rq_clock(rq))) {
-		printk_deferred_once("sched: DL replenish lagged to much\n");
+		printk_deferred_once("sched: DL replenish lagged too much\n");
 		dl_se->deadline = rq_clock(rq) + pi_se->dl_deadline;
 		dl_se->runtime = pi_se->dl_runtime;
 	}
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index eca592f..57a6eea 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4961,7 +4961,7 @@ void ftrace_release_mod(struct module *mod)
 	mutex_unlock(&ftrace_lock);
 }
 
-static void ftrace_module_enable(struct module *mod)
+void ftrace_module_enable(struct module *mod)
 {
 	struct dyn_ftrace *rec;
 	struct ftrace_page *pg;
@@ -5038,38 +5038,8 @@ void ftrace_module_init(struct module *mod)
 	ftrace_process_locs(mod, mod->ftrace_callsites,
 			    mod->ftrace_callsites + mod->num_ftrace_callsites);
 }
-
-static int ftrace_module_notify(struct notifier_block *self,
-				unsigned long val, void *data)
-{
-	struct module *mod = data;
-
-	switch (val) {
-	case MODULE_STATE_COMING:
-		ftrace_module_enable(mod);
-		break;
-	case MODULE_STATE_GOING:
-		ftrace_release_mod(mod);
-		break;
-	default:
-		break;
-	}
-
-	return 0;
-}
-#else
-static int ftrace_module_notify(struct notifier_block *self,
-				unsigned long val, void *data)
-{
-	return 0;
-}
 #endif /* CONFIG_MODULES */
 
-struct notifier_block ftrace_module_nb = {
-	.notifier_call = ftrace_module_notify,
-	.priority = INT_MIN,	/* Run after anything that can remove kprobes */
-};
-
 void __init ftrace_init(void)
 {
 	extern unsigned long __start_mcount_loc[];
@@ -5098,10 +5068,6 @@ void __init ftrace_init(void)
 				  __start_mcount_loc,
 				  __stop_mcount_loc);
 
-	ret = register_module_notifier(&ftrace_module_nb);
-	if (ret)
-		pr_warning("Failed to register trace ftrace module exit notifier\n");
-
 	set_ftrace_early_filters();
 
 	return;
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index f333e57..ab09829 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -869,7 +869,8 @@ t_next(struct seq_file *m, void *v, loff_t *pos)
 		 * The ftrace subsystem is for showing formats only.
 		 * They can not be enabled or disabled via the event files.
 		 */
-		if (call->class && call->class->reg)
+		if (call->class && call->class->reg &&
+		    !(call->flags & TRACE_EVENT_FL_IGNORE_ENABLE))
 			return file;
 	}
 
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index 202df6c..2a1abba 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -156,7 +156,11 @@ check_stack(unsigned long ip, unsigned long *stack)
 		for (; p < top && i < stack_trace_max.nr_entries; p++) {
 			if (stack_dump_trace[i] == ULONG_MAX)
 				break;
-			if (*p == stack_dump_trace[i]) {
+			/*
+			 * The READ_ONCE_NOCHECK is used to let KASAN know that
+			 * this is not a stack-out-of-bounds error.
+			 */
+			if ((READ_ONCE_NOCHECK(*p)) == stack_dump_trace[i]) {
 				stack_dump_trace[x] = stack_dump_trace[i++];
 				this_size = stack_trace_index[x++] =
 					(top - p) * sizeof(unsigned long);
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 61a0264..7ff5dc7 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -301,7 +301,23 @@ static DEFINE_SPINLOCK(wq_mayday_lock);	/* protects wq->maydays list */
 static LIST_HEAD(workqueues);		/* PR: list of all workqueues */
 static bool workqueue_freezing;		/* PL: have wqs started freezing? */
 
-static cpumask_var_t wq_unbound_cpumask; /* PL: low level cpumask for all unbound wqs */
+/* PL: allowable cpus for unbound wqs and work items */
+static cpumask_var_t wq_unbound_cpumask;
+
+/* CPU where unbound work was last round robin scheduled from this CPU */
+static DEFINE_PER_CPU(int, wq_rr_cpu_last);
+
+/*
+ * Local execution of unbound work items is no longer guaranteed.  The
+ * following always forces round-robin CPU selection on unbound work items
+ * to uncover usages which depend on it.
+ */
+#ifdef CONFIG_DEBUG_WQ_FORCE_RR_CPU
+static bool wq_debug_force_rr_cpu = true;
+#else
+static bool wq_debug_force_rr_cpu = false;
+#endif
+module_param_named(debug_force_rr_cpu, wq_debug_force_rr_cpu, bool, 0644);
 
 /* the per-cpu worker pools */
 static DEFINE_PER_CPU_SHARED_ALIGNED(struct worker_pool [NR_STD_WORKER_POOLS],
@@ -570,6 +586,16 @@ static struct pool_workqueue *unbound_pwq_by_node(struct workqueue_struct *wq,
 						  int node)
 {
 	assert_rcu_or_wq_mutex_or_pool_mutex(wq);
+
+	/*
+	 * XXX: @node can be NUMA_NO_NODE if CPU goes offline while a
+	 * delayed item is pending.  The plan is to keep CPU -> NODE
+	 * mapping valid and stable across CPU on/offlines.  Once that
+	 * happens, this workaround can be removed.
+	 */
+	if (unlikely(node == NUMA_NO_NODE))
+		return wq->dfl_pwq;
+
 	return rcu_dereference_raw(wq->numa_pwq_tbl[node]);
 }
 
@@ -1298,6 +1324,39 @@ static bool is_chained_work(struct workqueue_struct *wq)
 	return worker && worker->current_pwq->wq == wq;
 }
 
+/*
+ * When queueing an unbound work item to a wq, prefer local CPU if allowed
+ * by wq_unbound_cpumask.  Otherwise, round robin among the allowed ones to
+ * avoid perturbing sensitive tasks.
+ */
+static int wq_select_unbound_cpu(int cpu)
+{
+	static bool printed_dbg_warning;
+	int new_cpu;
+
+	if (likely(!wq_debug_force_rr_cpu)) {
+		if (cpumask_test_cpu(cpu, wq_unbound_cpumask))
+			return cpu;
+	} else if (!printed_dbg_warning) {
+		pr_warn("workqueue: round-robin CPU selection forced, expect performance impact\n");
+		printed_dbg_warning = true;
+	}
+
+	if (cpumask_empty(wq_unbound_cpumask))
+		return cpu;
+
+	new_cpu = __this_cpu_read(wq_rr_cpu_last);
+	new_cpu = cpumask_next_and(new_cpu, wq_unbound_cpumask, cpu_online_mask);
+	if (unlikely(new_cpu >= nr_cpu_ids)) {
+		new_cpu = cpumask_first_and(wq_unbound_cpumask, cpu_online_mask);
+		if (unlikely(new_cpu >= nr_cpu_ids))
+			return cpu;
+	}
+	__this_cpu_write(wq_rr_cpu_last, new_cpu);
+
+	return new_cpu;
+}
+
 static void __queue_work(int cpu, struct workqueue_struct *wq,
 			 struct work_struct *work)
 {
@@ -1323,7 +1382,7 @@ static void __queue_work(int cpu, struct workqueue_struct *wq,
 		return;
 retry:
 	if (req_cpu == WORK_CPU_UNBOUND)
-		cpu = raw_smp_processor_id();
+		cpu = wq_select_unbound_cpu(raw_smp_processor_id());
 
 	/* pwq which will be used unless @work is executing elsewhere */
 	if (!(wq->flags & WQ_UNBOUND))
@@ -1464,13 +1523,13 @@ static void __queue_delayed_work(int cpu, struct workqueue_struct *wq,
 	timer_stats_timer_set_start_info(&dwork->timer);
 
 	dwork->wq = wq;
-	/* timer isn't guaranteed to run in this cpu, record earlier */
-	if (cpu == WORK_CPU_UNBOUND)
-		cpu = raw_smp_processor_id();
 	dwork->cpu = cpu;
 	timer->expires = jiffies + delay;
 
-	add_timer_on(timer, cpu);
+	if (unlikely(cpu != WORK_CPU_UNBOUND))
+		add_timer_on(timer, cpu);
+	else
+		add_timer(timer);
 }
 
 /**
@@ -2355,7 +2414,8 @@ static void check_flush_dependency(struct workqueue_struct *target_wq,
 	WARN_ONCE(current->flags & PF_MEMALLOC,
 		  "workqueue: PF_MEMALLOC task %d(%s) is flushing !WQ_MEM_RECLAIM %s:%pf",
 		  current->pid, current->comm, target_wq->name, target_func);
-	WARN_ONCE(worker && (worker->current_pwq->wq->flags & WQ_MEM_RECLAIM),
+	WARN_ONCE(worker && ((worker->current_pwq->wq->flags &
+			      (WQ_MEM_RECLAIM | __WQ_LEGACY)) == WQ_MEM_RECLAIM),
 		  "workqueue: WQ_MEM_RECLAIM %s:%pf is flushing !WQ_MEM_RECLAIM %s:%pf",
 		  worker->current_pwq->wq->name, worker->current_func,
 		  target_wq->name, target_func);
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ecb9e75..8bfd1ac 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1400,6 +1400,21 @@ config RCU_EQS_DEBUG
 
 endmenu # "RCU Debugging"
 
+config DEBUG_WQ_FORCE_RR_CPU
+	bool "Force round-robin CPU selection for unbound work items"
+	depends on DEBUG_KERNEL
+	default n
+	help
+	  Workqueue used to implicitly guarantee that work items queued
+	  without explicit CPU specified are put on the local CPU.  This
+	  guarantee is no longer true and while local CPU is still
+	  preferred work items may be put on foreign CPUs.  Kernel
+	  parameter "workqueue.debug_force_rr_cpu" is added to force
+	  round-robin CPU selection to flush out usages which depend on the
+	  now broken guarantee.  This config option enables the debug
+	  feature by default.  When enabled, memory and cache locality will
+	  be impacted.
+
 config DEBUG_BLOCK_EXT_DEVT
         bool "Force extended block device numbers and spread them"
 	depends on DEBUG_KERNEL
diff --git a/lib/Kconfig.ubsan b/lib/Kconfig.ubsan
index 49518fb..e07c1ba 100644
--- a/lib/Kconfig.ubsan
+++ b/lib/Kconfig.ubsan
@@ -18,6 +18,8 @@ config UBSAN_SANITIZE_ALL
 	  This option activates instrumentation for the entire kernel.
 	  If you don't enable this option, you have to explicitly specify
 	  UBSAN_SANITIZE := y for the files/directories you want to check for UB.
+	  Enabling this option will get kernel image size increased
+	  significantly.
 
 config UBSAN_ALIGNMENT
 	bool "Enable checking of pointers alignment"
@@ -25,5 +27,5 @@ config UBSAN_ALIGNMENT
 	default y if !HAVE_EFFICIENT_UNALIGNED_ACCESS
 	help
 	  This option enables detection of unaligned memory accesses.
-	  Enabling this option on architectures that support unalligned
+	  Enabling this option on architectures that support unaligned
 	  accesses may produce a lot of false positives.
diff --git a/lib/devres.c b/lib/devres.c
index 8c85672..cb1464c 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -236,7 +236,7 @@ struct pcim_iomap_devres {
 
 static void pcim_iomap_release(struct device *gendev, void *res)
 {
-	struct pci_dev *dev = container_of(gendev, struct pci_dev, dev);
+	struct pci_dev *dev = to_pci_dev(gendev);
 	struct pcim_iomap_devres *this = res;
 	int i;
 
diff --git a/lib/klist.c b/lib/klist.c
index d74cf7a..0507fa5 100644
--- a/lib/klist.c
+++ b/lib/klist.c
@@ -282,9 +282,9 @@ void klist_iter_init_node(struct klist *k, struct klist_iter *i,
 			  struct klist_node *n)
 {
 	i->i_klist = k;
-	i->i_cur = n;
-	if (n)
-		kref_get(&n->n_ref);
+	i->i_cur = NULL;
+	if (n && kref_get_unless_zero(&n->n_ref))
+		i->i_cur = n;
 }
 EXPORT_SYMBOL_GPL(klist_iter_init_node);
 
diff --git a/lib/scatterlist.c b/lib/scatterlist.c
index bafa993..004fc70 100644
--- a/lib/scatterlist.c
+++ b/lib/scatterlist.c
@@ -598,9 +598,9 @@ EXPORT_SYMBOL(sg_miter_next);
  *
  * Description:
  *   Stops mapping iterator @miter.  @miter should have been started
- *   started using sg_miter_start().  A stopped iteration can be
- *   resumed by calling sg_miter_next() on it.  This is useful when
- *   resources (kmap) need to be released during iteration.
+ *   using sg_miter_start().  A stopped iteration can be resumed by
+ *   calling sg_miter_next() on it.  This is useful when resources (kmap)
+ *   need to be released during iteration.
  *
  * Context:
  *   Preemption disabled if the SG_MITER_ATOMIC is set.  Don't care
diff --git a/lib/ucs2_string.c b/lib/ucs2_string.c
index 6f500ef..f0b323a 100644
--- a/lib/ucs2_string.c
+++ b/lib/ucs2_string.c
@@ -49,3 +49,65 @@ ucs2_strncmp(const ucs2_char_t *a, const ucs2_char_t *b, size_t len)
         }
 }
 EXPORT_SYMBOL(ucs2_strncmp);
+
+unsigned long
+ucs2_utf8size(const ucs2_char_t *src)
+{
+	unsigned long i;
+	unsigned long j = 0;
+
+	for (i = 0; i < ucs2_strlen(src); i++) {
+		u16 c = src[i];
+
+		if (c >= 0x800)
+			j += 3;
+		else if (c >= 0x80)
+			j += 2;
+		else
+			j += 1;
+	}
+
+	return j;
+}
+EXPORT_SYMBOL(ucs2_utf8size);
+
+/*
+ * copy at most maxlength bytes of whole utf8 characters to dest from the
+ * ucs2 string src.
+ *
+ * The return value is the number of characters copied, not including the
+ * final NUL character.
+ */
+unsigned long
+ucs2_as_utf8(u8 *dest, const ucs2_char_t *src, unsigned long maxlength)
+{
+	unsigned int i;
+	unsigned long j = 0;
+	unsigned long limit = ucs2_strnlen(src, maxlength);
+
+	for (i = 0; maxlength && i < limit; i++) {
+		u16 c = src[i];
+
+		if (c >= 0x800) {
+			if (maxlength < 3)
+				break;
+			maxlength -= 3;
+			dest[j++] = 0xe0 | (c & 0xf000) >> 12;
+			dest[j++] = 0x80 | (c & 0x0fc0) >> 6;
+			dest[j++] = 0x80 | (c & 0x003f);
+		} else if (c >= 0x80) {
+			if (maxlength < 2)
+				break;
+			maxlength -= 2;
+			dest[j++] = 0xc0 | (c & 0x7c0) >> 6;
+			dest[j++] = 0x80 | (c & 0x03f);
+		} else {
+			maxlength -= 1;
+			dest[j++] = c & 0x7f;
+		}
+	}
+	if (maxlength)
+		dest[j] = '\0';
+	return j;
+}
+EXPORT_SYMBOL(ucs2_as_utf8);
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 48ff9c3..f44e178 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1590,22 +1590,23 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 			return buf;
 		}
 	case 'K':
-		/*
-		 * %pK cannot be used in IRQ context because its test
-		 * for CAP_SYSLOG would be meaningless.
-		 */
-		if (kptr_restrict && (in_irq() || in_serving_softirq() ||
-				      in_nmi())) {
-			if (spec.field_width == -1)
-				spec.field_width = default_width;
-			return string(buf, end, "pK-error", spec);
-		}
-
 		switch (kptr_restrict) {
 		case 0:
 			/* Always print %pK values */
 			break;
 		case 1: {
+			const struct cred *cred;
+
+			/*
+			 * kptr_restrict==1 cannot be used in IRQ context
+			 * because its test for CAP_SYSLOG would be meaningless.
+			 */
+			if (in_irq() || in_serving_softirq() || in_nmi()) {
+				if (spec.field_width == -1)
+					spec.field_width = default_width;
+				return string(buf, end, "pK-error", spec);
+			}
+
 			/*
 			 * Only print the real pointer value if the current
 			 * process has CAP_SYSLOG and is running with the
@@ -1615,8 +1616,7 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 			 * leak pointer values if a binary opens a file using
 			 * %pK and then elevates privileges before reading it.
 			 */
-			const struct cred *cred = current_cred();
-
+			cred = current_cred();
 			if (!has_capability_noaudit(current, CAP_SYSLOG) ||
 			    !uid_eq(cred->euid, cred->uid) ||
 			    !gid_eq(cred->egid, cred->gid))
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 926c76d..c554d17 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -328,7 +328,7 @@ static int wb_init(struct bdi_writeback *wb, struct backing_dev_info *bdi,
 	return 0;
 
 out_destroy_stat:
-	while (--i)
+	while (i--)
 		percpu_counter_destroy(&wb->stat[i]);
 	fprop_local_destroy_percpu(&wb->completions);
 out_put_cong:
diff --git a/mm/filemap.c b/mm/filemap.c
index bc94386..3461d97 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -446,7 +446,8 @@ int filemap_write_and_wait(struct address_space *mapping)
 {
 	int err = 0;
 
-	if (mapping->nrpages) {
+	if ((!dax_mapping(mapping) && mapping->nrpages) ||
+	    (dax_mapping(mapping) && mapping->nrexceptional)) {
 		err = filemap_fdatawrite(mapping);
 		/*
 		 * Even if the above returned error, the pages may be
@@ -482,13 +483,8 @@ int filemap_write_and_wait_range(struct address_space *mapping,
 {
 	int err = 0;
 
-	if (dax_mapping(mapping) && mapping->nrexceptional) {
-		err = dax_writeback_mapping_range(mapping, lstart, lend);
-		if (err)
-			return err;
-	}
-
-	if (mapping->nrpages) {
+	if ((!dax_mapping(mapping) && mapping->nrpages) ||
+	    (dax_mapping(mapping) && mapping->nrexceptional)) {
 		err = __filemap_fdatawrite_range(mapping, lstart, lend,
 						 WB_SYNC_ALL);
 		/* See comment of filemap_write_and_wait() */
@@ -1890,6 +1886,7 @@ EXPORT_SYMBOL(generic_file_read_iter);
  * page_cache_read - adds requested page to the page cache if not already there
  * @file:	file to read
  * @offset:	page index
+ * @gfp_mask:	memory allocation flags
  *
  * This adds the requested page to the page cache if it isn't already there,
  * and schedules an I/O to read in its contents from disk.
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 08fc0ba..e10a4fe 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1700,7 +1700,8 @@ bool move_huge_pmd(struct vm_area_struct *vma, struct vm_area_struct *new_vma,
 		pmd = pmdp_huge_get_and_clear(mm, old_addr, old_pmd);
 		VM_BUG_ON(!pmd_none(*new_pmd));
 
-		if (pmd_move_must_withdraw(new_ptl, old_ptl)) {
+		if (pmd_move_must_withdraw(new_ptl, old_ptl) &&
+				vma_is_anonymous(vma)) {
 			pgtable_t pgtable;
 			pgtable = pgtable_trans_huge_withdraw(mm, old_pmd);
 			pgtable_trans_huge_deposit(mm, new_pmd, pgtable);
@@ -2835,6 +2836,7 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
 	pgtable_t pgtable;
 	pmd_t _pmd;
 	bool young, write, dirty;
+	unsigned long addr;
 	int i;
 
 	VM_BUG_ON(haddr & ~HPAGE_PMD_MASK);
@@ -2860,10 +2862,11 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
 	young = pmd_young(*pmd);
 	dirty = pmd_dirty(*pmd);
 
+	pmdp_huge_split_prepare(vma, haddr, pmd);
 	pgtable = pgtable_trans_huge_withdraw(mm, pmd);
 	pmd_populate(mm, &_pmd, pgtable);
 
-	for (i = 0; i < HPAGE_PMD_NR; i++, haddr += PAGE_SIZE) {
+	for (i = 0, addr = haddr; i < HPAGE_PMD_NR; i++, addr += PAGE_SIZE) {
 		pte_t entry, *pte;
 		/*
 		 * Note that NUMA hinting access restrictions are not
@@ -2884,9 +2887,9 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
 		}
 		if (dirty)
 			SetPageDirty(page + i);
-		pte = pte_offset_map(&_pmd, haddr);
+		pte = pte_offset_map(&_pmd, addr);
 		BUG_ON(!pte_none(*pte));
-		set_pte_at(mm, haddr, pte, entry);
+		set_pte_at(mm, addr, pte, entry);
 		atomic_inc(&page[i]._mapcount);
 		pte_unmap(pte);
 	}
@@ -2936,7 +2939,7 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
 	pmd_populate(mm, pmd, pgtable);
 
 	if (freeze) {
-		for (i = 0; i < HPAGE_PMD_NR; i++, haddr += PAGE_SIZE) {
+		for (i = 0; i < HPAGE_PMD_NR; i++) {
 			page_remove_rmap(page + i, false);
 			put_page(page + i);
 		}
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 06ae13e..01f2b48 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2630,8 +2630,10 @@ static int __init hugetlb_init(void)
 			hugetlb_add_hstate(HUGETLB_PAGE_ORDER);
 	}
 	default_hstate_idx = hstate_index(size_to_hstate(default_hstate_size));
-	if (default_hstate_max_huge_pages)
-		default_hstate.max_huge_pages = default_hstate_max_huge_pages;
+	if (default_hstate_max_huge_pages) {
+		if (!default_hstate.max_huge_pages)
+			default_hstate.max_huge_pages = default_hstate_max_huge_pages;
+	}
 
 	hugetlb_init_hstates();
 	gather_bootmem_prealloc();
diff --git a/mm/memory.c b/mm/memory.c
index 635451a..8132787 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3404,8 +3404,18 @@ static int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (unlikely(pmd_none(*pmd)) &&
 	    unlikely(__pte_alloc(mm, vma, pmd, address)))
 		return VM_FAULT_OOM;
-	/* if an huge pmd materialized from under us just retry later */
-	if (unlikely(pmd_trans_huge(*pmd) || pmd_devmap(*pmd)))
+	/*
+	 * If a huge pmd materialized under us just retry later.  Use
+	 * pmd_trans_unstable() instead of pmd_trans_huge() to ensure the pmd
+	 * didn't become pmd_trans_huge under us and then back to pmd_none, as
+	 * a result of MADV_DONTNEED running immediately after a huge pmd fault
+	 * in a different thread of this mm, in turn leading to a misleading
+	 * pmd_trans_huge() retval.  All we have to ensure is that it is a
+	 * regular pmd that we can walk with pte_offset_map() and we can do that
+	 * through an atomic read in C, which is what pmd_trans_unstable()
+	 * provides.
+	 */
+	if (unlikely(pmd_trans_unstable(pmd) || pmd_devmap(*pmd)))
 		return 0;
 	/*
 	 * A regular pmd is established and it can't morph into a huge pmd
diff --git a/mm/migrate.c b/mm/migrate.c
index b1034f9..3ad0fea 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1582,7 +1582,7 @@ static struct page *alloc_misplaced_dst_page(struct page *page,
 					 (GFP_HIGHUSER_MOVABLE |
 					  __GFP_THISNODE | __GFP_NOMEMALLOC |
 					  __GFP_NORETRY | __GFP_NOWARN) &
-					 ~(__GFP_IO | __GFP_FS), 0);
+					 ~__GFP_RECLAIM, 0);
 
 	return newpage;
 }
diff --git a/mm/mmap.c b/mm/mmap.c
index 2f2415a..76d1ec2 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2664,12 +2664,29 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 	if (!vma || !(vma->vm_flags & VM_SHARED))
 		goto out;
 
-	if (start < vma->vm_start || start + size > vma->vm_end)
+	if (start < vma->vm_start)
 		goto out;
 
-	if (pgoff == linear_page_index(vma, start)) {
-		ret = 0;
-		goto out;
+	if (start + size > vma->vm_end) {
+		struct vm_area_struct *next;
+
+		for (next = vma->vm_next; next; next = next->vm_next) {
+			/* hole between vmas ? */
+			if (next->vm_start != next->vm_prev->vm_end)
+				goto out;
+
+			if (next->vm_file != vma->vm_file)
+				goto out;
+
+			if (next->vm_flags != vma->vm_flags)
+				goto out;
+
+			if (start + size <= next->vm_end)
+				break;
+		}
+
+		if (!next)
+			goto out;
 	}
 
 	prot |= vma->vm_flags & VM_READ ? PROT_READ : 0;
@@ -2679,9 +2696,16 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 	flags &= MAP_NONBLOCK;
 	flags |= MAP_SHARED | MAP_FIXED | MAP_POPULATE;
 	if (vma->vm_flags & VM_LOCKED) {
+		struct vm_area_struct *tmp;
 		flags |= MAP_LOCKED;
+
 		/* drop PG_Mlocked flag for over-mapped range */
-		munlock_vma_pages_range(vma, start, start + size);
+		for (tmp = vma; tmp->vm_start >= start + size;
+				tmp = tmp->vm_next) {
+			munlock_vma_pages_range(tmp,
+					max(tmp->vm_start, start),
+					min(tmp->vm_end, start + size));
+		}
 	}
 
 	file = get_file(vma->vm_file);
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 8eb7bb4..f7cb3d4 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -160,9 +160,11 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 		}
 
 		if (pmd_trans_huge(*pmd) || pmd_devmap(*pmd)) {
-			if (next - addr != HPAGE_PMD_SIZE)
+			if (next - addr != HPAGE_PMD_SIZE) {
 				split_huge_pmd(vma, pmd, addr);
-			else {
+				if (pmd_none(*pmd))
+					continue;
+			} else {
 				int nr_ptes = change_huge_pmd(vma, pmd, addr,
 						newprot, prot_numa);
 
diff --git a/mm/mremap.c b/mm/mremap.c
index d77946a..8eeba02 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -210,6 +210,8 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
 				}
 			}
 			split_huge_pmd(vma, old_pmd, old_addr);
+			if (pmd_none(*old_pmd))
+				continue;
 			VM_BUG_ON(pmd_trans_huge(*old_pmd));
 		}
 		if (pmd_none(*new_pmd) && __pte_alloc(new_vma->vm_mm, new_vma,
diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c
index 9d47676..06a005b 100644
--- a/mm/pgtable-generic.c
+++ b/mm/pgtable-generic.c
@@ -90,9 +90,9 @@ pte_t ptep_clear_flush(struct vm_area_struct *vma, unsigned long address,
  * ARCHes with special requirements for evicting THP backing TLB entries can
  * implement this. Otherwise also, it can help optimize normal TLB flush in
  * THP regime. stock flush_tlb_range() typically has optimization to nuke the
- * entire TLB TLB if flush span is greater than a threshhold, which will
+ * entire TLB if flush span is greater than a threshold, which will
  * likely be true for a single huge page. Thus a single thp flush will
- * invalidate the entire TLB which is not desitable.
+ * invalidate the entire TLB which is not desirable.
  * e.g. see arch/arc: flush_pmd_tlb_range
  */
 #define flush_pmd_tlb_range(vma, addr, end)	flush_tlb_range(vma, addr, end)
@@ -195,7 +195,9 @@ pmd_t pmdp_collapse_flush(struct vm_area_struct *vma, unsigned long address,
 	VM_BUG_ON(address & ~HPAGE_PMD_MASK);
 	VM_BUG_ON(pmd_trans_huge(*pmdp));
 	pmd = pmdp_huge_get_and_clear(vma->vm_mm, address, pmdp);
-	flush_pmd_tlb_range(vma, address, address + HPAGE_PMD_SIZE);
+
+	/* collapse entails shooting down ptes not pmd */
+	flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE);
 	return pmd;
 }
 #endif
diff --git a/mm/slab.c b/mm/slab.c
index 6ecc697..621fbcb 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2275,7 +2275,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 
 	err = setup_cpu_cache(cachep, gfp);
 	if (err) {
-		__kmem_cache_shutdown(cachep);
+		__kmem_cache_release(cachep);
 		return err;
 	}
 
@@ -2414,12 +2414,13 @@ int __kmem_cache_shrink(struct kmem_cache *cachep, bool deactivate)
 
 int __kmem_cache_shutdown(struct kmem_cache *cachep)
 {
+	return __kmem_cache_shrink(cachep, false);
+}
+
+void __kmem_cache_release(struct kmem_cache *cachep)
+{
 	int i;
 	struct kmem_cache_node *n;
-	int rc = __kmem_cache_shrink(cachep, false);
-
-	if (rc)
-		return rc;
 
 	free_percpu(cachep->cpu_cache);
 
@@ -2430,7 +2431,6 @@ int __kmem_cache_shutdown(struct kmem_cache *cachep)
 		kfree(n);
 		cachep->node[i] = NULL;
 	}
-	return 0;
 }
 
 /*
diff --git a/mm/slab.h b/mm/slab.h
index 834ad24..2eedace 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -140,6 +140,7 @@ static inline unsigned long kmem_cache_flags(unsigned long object_size,
 #define CACHE_CREATE_MASK (SLAB_CORE_FLAGS | SLAB_DEBUG_FLAGS | SLAB_CACHE_FLAGS)
 
 int __kmem_cache_shutdown(struct kmem_cache *);
+void __kmem_cache_release(struct kmem_cache *);
 int __kmem_cache_shrink(struct kmem_cache *, bool);
 void slab_kmem_cache_release(struct kmem_cache *);
 
diff --git a/mm/slab_common.c b/mm/slab_common.c
index b50aef0..065b7bd 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -693,6 +693,7 @@ static inline int shutdown_memcg_caches(struct kmem_cache *s,
 
 void slab_kmem_cache_release(struct kmem_cache *s)
 {
+	__kmem_cache_release(s);
 	destroy_memcg_params(s);
 	kfree_const(s->name);
 	kmem_cache_free(kmem_cache, s);
diff --git a/mm/slob.c b/mm/slob.c
index 17e8f8c..5ec1580 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -630,6 +630,10 @@ int __kmem_cache_shutdown(struct kmem_cache *c)
 	return 0;
 }
 
+void __kmem_cache_release(struct kmem_cache *c)
+{
+}
+
 int __kmem_cache_shrink(struct kmem_cache *d, bool deactivate)
 {
 	return 0;
diff --git a/mm/slub.c b/mm/slub.c
index 2e1355a..d8fbd4a 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1592,18 +1592,12 @@ static inline void add_partial(struct kmem_cache_node *n,
 	__add_partial(n, page, tail);
 }
 
-static inline void
-__remove_partial(struct kmem_cache_node *n, struct page *page)
-{
-	list_del(&page->lru);
-	n->nr_partial--;
-}
-
 static inline void remove_partial(struct kmem_cache_node *n,
 					struct page *page)
 {
 	lockdep_assert_held(&n->list_lock);
-	__remove_partial(n, page);
+	list_del(&page->lru);
+	n->nr_partial--;
 }
 
 /*
@@ -3184,6 +3178,12 @@ static void free_kmem_cache_nodes(struct kmem_cache *s)
 	}
 }
 
+void __kmem_cache_release(struct kmem_cache *s)
+{
+	free_percpu(s->cpu_slab);
+	free_kmem_cache_nodes(s);
+}
+
 static int init_kmem_cache_nodes(struct kmem_cache *s)
 {
 	int node;
@@ -3443,28 +3443,31 @@ static void list_slab_objects(struct kmem_cache *s, struct page *page,
 
 /*
  * Attempt to free all partial slabs on a node.
- * This is called from kmem_cache_close(). We must be the last thread
- * using the cache and therefore we do not need to lock anymore.
+ * This is called from __kmem_cache_shutdown(). We must take list_lock
+ * because sysfs file might still access partial list after the shutdowning.
  */
 static void free_partial(struct kmem_cache *s, struct kmem_cache_node *n)
 {
 	struct page *page, *h;
 
+	BUG_ON(irqs_disabled());
+	spin_lock_irq(&n->list_lock);
 	list_for_each_entry_safe(page, h, &n->partial, lru) {
 		if (!page->inuse) {
-			__remove_partial(n, page);
+			remove_partial(n, page);
 			discard_slab(s, page);
 		} else {
 			list_slab_objects(s, page,
-			"Objects remaining in %s on kmem_cache_close()");
+			"Objects remaining in %s on __kmem_cache_shutdown()");
 		}
 	}
+	spin_unlock_irq(&n->list_lock);
 }
 
 /*
  * Release all resources used by a slab cache.
  */
-static inline int kmem_cache_close(struct kmem_cache *s)
+int __kmem_cache_shutdown(struct kmem_cache *s)
 {
 	int node;
 	struct kmem_cache_node *n;
@@ -3476,16 +3479,9 @@ static inline int kmem_cache_close(struct kmem_cache *s)
 		if (n->nr_partial || slabs_node(s, node))
 			return 1;
 	}
-	free_percpu(s->cpu_slab);
-	free_kmem_cache_nodes(s);
 	return 0;
 }
 
-int __kmem_cache_shutdown(struct kmem_cache *s)
-{
-	return kmem_cache_close(s);
-}
-
 /********************************************************************
  *		Kmalloc subsystem
  *******************************************************************/
@@ -3980,7 +3976,7 @@ int __kmem_cache_create(struct kmem_cache *s, unsigned long flags)
 	memcg_propagate_slab_attrs(s);
 	err = sysfs_slab_add(s);
 	if (err)
-		kmem_cache_close(s);
+		__kmem_cache_release(s);
 
 	return err;
 }
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index d5871ac..f066781 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1625,7 +1625,7 @@ static int atalk_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
 
 		rt = atrtr_find(&at_hint);
 	}
-	err = ENETUNREACH;
+	err = -ENETUNREACH;
 	if (!rt)
 		goto out;
 
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index e6c8382..ccf70be 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -527,11 +527,12 @@ void batadv_gw_node_update(struct batadv_priv *bat_priv,
 		 * gets dereferenced.
 		 */
 		spin_lock_bh(&bat_priv->gw.list_lock);
-		hlist_del_init_rcu(&gw_node->list);
+		if (!hlist_unhashed(&gw_node->list)) {
+			hlist_del_init_rcu(&gw_node->list);
+			batadv_gw_node_free_ref(gw_node);
+		}
 		spin_unlock_bh(&bat_priv->gw.list_lock);
 
-		batadv_gw_node_free_ref(gw_node);
-
 		curr_gw = batadv_gw_get_selected_gw_node(bat_priv);
 		if (gw_node == curr_gw)
 			batadv_gw_reselect(bat_priv);
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 01acccc..57f71071 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -76,6 +76,28 @@ out:
 }
 
 /**
+ * batadv_mutual_parents - check if two devices are each others parent
+ * @dev1: 1st net_device
+ * @dev2: 2nd net_device
+ *
+ * veth devices come in pairs and each is the parent of the other!
+ *
+ * Return: true if the devices are each others parent, otherwise false
+ */
+static bool batadv_mutual_parents(const struct net_device *dev1,
+				  const struct net_device *dev2)
+{
+	int dev1_parent_iflink = dev_get_iflink(dev1);
+	int dev2_parent_iflink = dev_get_iflink(dev2);
+
+	if (!dev1_parent_iflink || !dev2_parent_iflink)
+		return false;
+
+	return (dev1_parent_iflink == dev2->ifindex) &&
+	       (dev2_parent_iflink == dev1->ifindex);
+}
+
+/**
  * batadv_is_on_batman_iface - check if a device is a batman iface descendant
  * @net_dev: the device to check
  *
@@ -108,6 +130,9 @@ static bool batadv_is_on_batman_iface(const struct net_device *net_dev)
 	if (WARN(!parent_dev, "Cannot find parent device"))
 		return false;
 
+	if (batadv_mutual_parents(net_dev, parent_dev))
+		return false;
+
 	ret = batadv_is_on_batman_iface(parent_dev);
 
 	return ret;
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index cdfc85f..0e80fd1 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -303,9 +303,11 @@ static void batadv_tt_global_size_mod(struct batadv_orig_node *orig_node,
 
 	if (atomic_add_return(v, &vlan->tt.num_entries) == 0) {
 		spin_lock_bh(&orig_node->vlan_list_lock);
-		hlist_del_init_rcu(&vlan->list);
+		if (!hlist_unhashed(&vlan->list)) {
+			hlist_del_init_rcu(&vlan->list);
+			batadv_orig_node_vlan_free_ref(vlan);
+		}
 		spin_unlock_bh(&orig_node->vlan_list_lock);
-		batadv_orig_node_vlan_free_ref(vlan);
 	}
 
 	batadv_orig_node_vlan_free_ref(vlan);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 47bcef754..883c821 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -4112,8 +4112,10 @@ void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
 			break;
 		}
 
-		*req_complete = bt_cb(skb)->hci.req_complete;
-		*req_complete_skb = bt_cb(skb)->hci.req_complete_skb;
+		if (bt_cb(skb)->hci.req_flags & HCI_REQ_SKB)
+			*req_complete_skb = bt_cb(skb)->hci.req_complete_skb;
+		else
+			*req_complete = bt_cb(skb)->hci.req_complete;
 		kfree_skb(skb);
 	}
 	spin_unlock_irqrestore(&hdev->cmd_q.lock, flags);
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 30e105f..74c278e 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -425,8 +425,8 @@ static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port,
 	mp = br_mdb_ip_get(mdb, group);
 	if (!mp) {
 		mp = br_multicast_new_group(br, port, group);
-		err = PTR_ERR(mp);
-		if (IS_ERR(mp))
+		err = PTR_ERR_OR_ZERO(mp);
+		if (err)
 			return err;
 	}
 
diff --git a/net/caif/cfrfml.c b/net/caif/cfrfml.c
index 61d7617..b82440e 100644
--- a/net/caif/cfrfml.c
+++ b/net/caif/cfrfml.c
@@ -159,7 +159,7 @@ static int cfrfml_receive(struct cflayer *layr, struct cfpkt *pkt)
 		tmppkt = NULL;
 
 		/* Verify that length is correct */
-		err = EPROTO;
+		err = -EPROTO;
 		if (rfml->pdu_size != cfpkt_getlen(pkt) - RFM_HEAD_SIZE + 1)
 			goto out;
 	}
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 9cfedf5..9382619 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1197,6 +1197,13 @@ static bool ceph_msg_data_advance(struct ceph_msg_data_cursor *cursor,
 	return new_piece;
 }
 
+static size_t sizeof_footer(struct ceph_connection *con)
+{
+	return (con->peer_features & CEPH_FEATURE_MSG_AUTH) ?
+	    sizeof(struct ceph_msg_footer) :
+	    sizeof(struct ceph_msg_footer_old);
+}
+
 static void prepare_message_data(struct ceph_msg *msg, u32 data_len)
 {
 	BUG_ON(!msg);
@@ -2335,9 +2342,9 @@ static int read_partial_message(struct ceph_connection *con)
 			ceph_pr_addr(&con->peer_addr.in_addr),
 			seq, con->in_seq + 1);
 		con->in_base_pos = -front_len - middle_len - data_len -
-			sizeof(m->footer);
+			sizeof_footer(con);
 		con->in_tag = CEPH_MSGR_TAG_READY;
-		return 0;
+		return 1;
 	} else if ((s64)seq - (s64)con->in_seq > 1) {
 		pr_err("read_partial_message bad seq %lld expected %lld\n",
 		       seq, con->in_seq + 1);
@@ -2360,10 +2367,10 @@ static int read_partial_message(struct ceph_connection *con)
 			/* skip this message */
 			dout("alloc_msg said skip message\n");
 			con->in_base_pos = -front_len - middle_len - data_len -
-				sizeof(m->footer);
+				sizeof_footer(con);
 			con->in_tag = CEPH_MSGR_TAG_READY;
 			con->in_seq++;
-			return 0;
+			return 1;
 		}
 
 		BUG_ON(!con->in_msg);
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 3534e12..5bc0537 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -2853,8 +2853,8 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
 	mutex_lock(&osdc->request_mutex);
 	req = __lookup_request(osdc, tid);
 	if (!req) {
-		pr_warn("%s osd%d tid %llu unknown, skipping\n",
-			__func__, osd->o_osd, tid);
+		dout("%s osd%d tid %llu unknown, skipping\n", __func__,
+		     osd->o_osd, tid);
 		m = NULL;
 		*skip = 1;
 		goto out;
diff --git a/net/core/dev.c b/net/core/dev.c
index 8cba3d8..0ef061b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5379,12 +5379,12 @@ void *netdev_lower_get_next(struct net_device *dev, struct list_head **iter)
 {
 	struct netdev_adjacent *lower;
 
-	lower = list_entry((*iter)->next, struct netdev_adjacent, list);
+	lower = list_entry(*iter, struct netdev_adjacent, list);
 
 	if (&lower->list == &dev->adj_list.lower)
 		return NULL;
 
-	*iter = &lower->list;
+	*iter = lower->list.next;
 
 	return lower->dev;
 }
@@ -7422,8 +7422,10 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
 	dev->priv_flags = IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM;
 	setup(dev);
 
-	if (!dev->tx_queue_len)
+	if (!dev->tx_queue_len) {
 		dev->priv_flags |= IFF_NO_QUEUE;
+		dev->tx_queue_len = 1;
+	}
 
 	dev->num_tx_queues = txqs;
 	dev->real_num_tx_queues = txqs;
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index d79699c..12e7003 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -208,7 +208,6 @@ ip:
 	case htons(ETH_P_IPV6): {
 		const struct ipv6hdr *iph;
 		struct ipv6hdr _iph;
-		__be32 flow_label;
 
 ipv6:
 		iph = __skb_header_pointer(skb, nhoff, sizeof(_iph), data, hlen, &_iph);
@@ -230,8 +229,12 @@ ipv6:
 			key_control->addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
 		}
 
-		flow_label = ip6_flowlabel(iph);
-		if (flow_label) {
+		if ((dissector_uses_key(flow_dissector,
+					FLOW_DISSECTOR_KEY_FLOW_LABEL) ||
+		     (flags & FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL)) &&
+		    ip6_flowlabel(iph)) {
+			__be32 flow_label = ip6_flowlabel(iph);
+
 			if (dissector_uses_key(flow_dissector,
 					       FLOW_DISSECTOR_KEY_FLOW_LABEL)) {
 				key_tags = skb_flow_dissector_target(flow_dissector,
@@ -396,6 +399,13 @@ ip_proto_again:
 				goto out_bad;
 			proto = eth->h_proto;
 			nhoff += sizeof(*eth);
+
+			/* Cap headers that we access via pointers at the
+			 * end of the Ethernet header as our maximum alignment
+			 * at that point is only 2 bytes.
+			 */
+			if (NET_IP_ALIGN)
+				hlen = nhoff;
 		}
 
 		key_control->flags |= FLOW_DIS_ENCAPSULATION;
diff --git a/net/core/scm.c b/net/core/scm.c
index 14596fb..2696aef 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -87,6 +87,7 @@ static int scm_fp_copy(struct cmsghdr *cmsg, struct scm_fp_list **fplp)
 		*fplp = fpl;
 		fpl->count = 0;
 		fpl->max = SCM_MAX_FD;
+		fpl->user = NULL;
 	}
 	fpp = &fpl->fp[fpl->count];
 
@@ -107,6 +108,10 @@ static int scm_fp_copy(struct cmsghdr *cmsg, struct scm_fp_list **fplp)
 		*fpp++ = file;
 		fpl->count++;
 	}
+
+	if (!fpl->user)
+		fpl->user = get_uid(current_user());
+
 	return num;
 }
 
@@ -119,6 +124,7 @@ void __scm_destroy(struct scm_cookie *scm)
 		scm->fp = NULL;
 		for (i=fpl->count-1; i>=0; i--)
 			fput(fpl->fp[i]);
+		free_uid(fpl->user);
 		kfree(fpl);
 	}
 }
@@ -336,6 +342,7 @@ struct scm_fp_list *scm_fp_dup(struct scm_fp_list *fpl)
 		for (i = 0; i < fpl->count; i++)
 			get_file(fpl->fp[i]);
 		new_fpl->max = new_fpl->count;
+		new_fpl->user = get_uid(fpl->user);
 	}
 	return new_fpl;
 }
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index b2df375..5bf88f5 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -79,6 +79,8 @@
 
 struct kmem_cache *skbuff_head_cache __read_mostly;
 static struct kmem_cache *skbuff_fclone_cache __read_mostly;
+int sysctl_max_skb_frags __read_mostly = MAX_SKB_FRAGS;
+EXPORT_SYMBOL(sysctl_max_skb_frags);
 
 /**
  *	skb_panic - private function for out-of-line support
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index 95b6139..a6beb7b 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -26,6 +26,7 @@ static int zero = 0;
 static int one = 1;
 static int min_sndbuf = SOCK_MIN_SNDBUF;
 static int min_rcvbuf = SOCK_MIN_RCVBUF;
+static int max_skb_frags = MAX_SKB_FRAGS;
 
 static int net_msg_warn;	/* Unused, but still a sysctl */
 
@@ -392,6 +393,15 @@ static struct ctl_table net_core_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec
 	},
+	{
+		.procname	= "max_skb_frags",
+		.data		= &sysctl_max_skb_frags,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &one,
+		.extra2		= &max_skb_frags,
+	},
 	{ }
 };
 
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 5684e14..902d606 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -824,26 +824,26 @@ lookup:
 
 	if (sk->sk_state == DCCP_NEW_SYN_RECV) {
 		struct request_sock *req = inet_reqsk(sk);
-		struct sock *nsk = NULL;
+		struct sock *nsk;
 
 		sk = req->rsk_listener;
-		if (likely(sk->sk_state == DCCP_LISTEN)) {
-			nsk = dccp_check_req(sk, skb, req);
-		} else {
+		if (unlikely(sk->sk_state != DCCP_LISTEN)) {
 			inet_csk_reqsk_queue_drop_and_put(sk, req);
 			goto lookup;
 		}
+		sock_hold(sk);
+		nsk = dccp_check_req(sk, skb, req);
 		if (!nsk) {
 			reqsk_put(req);
-			goto discard_it;
+			goto discard_and_relse;
 		}
 		if (nsk == sk) {
-			sock_hold(sk);
 			reqsk_put(req);
 		} else if (dccp_child_process(sk, nsk, skb)) {
 			dccp_v4_ctl_send_reset(sk, skb);
-			goto discard_it;
+			goto discard_and_relse;
 		} else {
+			sock_put(sk);
 			return 0;
 		}
 	}
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 9c6d050..b8608b7 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -691,26 +691,26 @@ lookup:
 
 	if (sk->sk_state == DCCP_NEW_SYN_RECV) {
 		struct request_sock *req = inet_reqsk(sk);
-		struct sock *nsk = NULL;
+		struct sock *nsk;
 
 		sk = req->rsk_listener;
-		if (likely(sk->sk_state == DCCP_LISTEN)) {
-			nsk = dccp_check_req(sk, skb, req);
-		} else {
+		if (unlikely(sk->sk_state != DCCP_LISTEN)) {
 			inet_csk_reqsk_queue_drop_and_put(sk, req);
 			goto lookup;
 		}
+		sock_hold(sk);
+		nsk = dccp_check_req(sk, skb, req);
 		if (!nsk) {
 			reqsk_put(req);
-			goto discard_it;
+			goto discard_and_relse;
 		}
 		if (nsk == sk) {
-			sock_hold(sk);
 			reqsk_put(req);
 		} else if (dccp_child_process(sk, nsk, skb)) {
 			dccp_v6_ctl_send_reset(sk, skb);
-			goto discard_it;
+			goto discard_and_relse;
 		} else {
+			sock_put(sk);
 			return 0;
 		}
 	}
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 40b9ca7..ab24521 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1194,7 +1194,6 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
 	if (ret) {
 		netdev_err(master, "error %d registering interface %s\n",
 			   ret, slave_dev->name);
-		phy_disconnect(p->phy);
 		ds->ports[port] = NULL;
 		free_netdev(slave_dev);
 		return ret;
@@ -1205,6 +1204,7 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
 	ret = dsa_slave_phy_setup(p, slave_dev);
 	if (ret) {
 		netdev_err(master, "error %d setting up slave phy\n", ret);
+		unregister_netdev(slave_dev);
 		free_netdev(slave_dev);
 		return ret;
 	}
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index cebd9d3..f6303b1 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1847,7 +1847,7 @@ static int inet_netconf_get_devconf(struct sk_buff *in_skb,
 	if (err < 0)
 		goto errout;
 
-	err = EINVAL;
+	err = -EINVAL;
 	if (!tb[NETCONFA_IFINDEX])
 		goto errout;
 
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 46b9c88..6414891 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -789,14 +789,16 @@ static void inet_child_forget(struct sock *sk, struct request_sock *req,
 	reqsk_put(req);
 }
 
-void inet_csk_reqsk_queue_add(struct sock *sk, struct request_sock *req,
-			      struct sock *child)
+struct sock *inet_csk_reqsk_queue_add(struct sock *sk,
+				      struct request_sock *req,
+				      struct sock *child)
 {
 	struct request_sock_queue *queue = &inet_csk(sk)->icsk_accept_queue;
 
 	spin_lock(&queue->rskq_lock);
 	if (unlikely(sk->sk_state != TCP_LISTEN)) {
 		inet_child_forget(sk, req, child);
+		child = NULL;
 	} else {
 		req->sk = child;
 		req->dl_next = NULL;
@@ -808,6 +810,7 @@ void inet_csk_reqsk_queue_add(struct sock *sk, struct request_sock *req,
 		sk_acceptq_added(sk);
 	}
 	spin_unlock(&queue->rskq_lock);
+	return child;
 }
 EXPORT_SYMBOL(inet_csk_reqsk_queue_add);
 
@@ -817,11 +820,8 @@ struct sock *inet_csk_complete_hashdance(struct sock *sk, struct sock *child,
 	if (own_req) {
 		inet_csk_reqsk_queue_drop(sk, req);
 		reqsk_queue_removed(&inet_csk(sk)->icsk_accept_queue, req);
-		inet_csk_reqsk_queue_add(sk, req, child);
-		/* Warning: caller must not call reqsk_put(req);
-		 * child stole last reference on it.
-		 */
-		return child;
+		if (inet_csk_reqsk_queue_add(sk, req, child))
+			return child;
 	}
 	/* Too bad, another child took ownership of the request, undo. */
 	bh_unlock_sock(child);
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 7c51c4e..41ba68d 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -1054,8 +1054,9 @@ static const struct net_device_ops gre_tap_netdev_ops = {
 static void ipgre_tap_setup(struct net_device *dev)
 {
 	ether_setup(dev);
-	dev->netdev_ops		= &gre_tap_netdev_ops;
-	dev->priv_flags 	|= IFF_LIVE_ADDR_CHANGE;
+	dev->netdev_ops	= &gre_tap_netdev_ops;
+	dev->priv_flags &= ~IFF_TX_SKB_SHARING;
+	dev->priv_flags	|= IFF_LIVE_ADDR_CHANGE;
 	ip_tunnel_setup(dev, gre_tap_net_id);
 }
 
@@ -1240,6 +1241,14 @@ struct net_device *gretap_fb_dev_create(struct net *net, const char *name,
 	err = ipgre_newlink(net, dev, tb, NULL);
 	if (err < 0)
 		goto out;
+
+	/* openvswitch users expect packet sizes to be unrestricted,
+	 * so set the largest MTU we can.
+	 */
+	err = __ip_tunnel_change_mtu(dev, IP_MAX_MTU, false);
+	if (err)
+		goto out;
+
 	return dev;
 out:
 	free_netdev(dev);
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 5f73a7c..a501242 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -249,6 +249,8 @@ int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc,
 		switch (cmsg->cmsg_type) {
 		case IP_RETOPTS:
 			err = cmsg->cmsg_len - CMSG_ALIGN(sizeof(struct cmsghdr));
+
+			/* Our caller is responsible for freeing ipc->opt */
 			err = ip_options_get(net, &ipc->opt, CMSG_DATA(cmsg),
 					     err < 40 ? err : 40);
 			if (err)
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index c7bd72e..89e8861 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -943,17 +943,31 @@ done:
 }
 EXPORT_SYMBOL_GPL(ip_tunnel_ioctl);
 
-int ip_tunnel_change_mtu(struct net_device *dev, int new_mtu)
+int __ip_tunnel_change_mtu(struct net_device *dev, int new_mtu, bool strict)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
 	int t_hlen = tunnel->hlen + sizeof(struct iphdr);
+	int max_mtu = 0xFFF8 - dev->hard_header_len - t_hlen;
 
-	if (new_mtu < 68 ||
-	    new_mtu > 0xFFF8 - dev->hard_header_len - t_hlen)
+	if (new_mtu < 68)
 		return -EINVAL;
+
+	if (new_mtu > max_mtu) {
+		if (strict)
+			return -EINVAL;
+
+		new_mtu = max_mtu;
+	}
+
 	dev->mtu = new_mtu;
 	return 0;
 }
+EXPORT_SYMBOL_GPL(__ip_tunnel_change_mtu);
+
+int ip_tunnel_change_mtu(struct net_device *dev, int new_mtu)
+{
+	return __ip_tunnel_change_mtu(dev, new_mtu, true);
+}
 EXPORT_SYMBOL_GPL(ip_tunnel_change_mtu);
 
 static void ip_tunnel_dev_free(struct net_device *dev)
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index c117b21..d3a2716 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -746,8 +746,10 @@ static int ping_v4_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 
 	if (msg->msg_controllen) {
 		err = ip_cmsg_send(sock_net(sk), msg, &ipc, false);
-		if (err)
+		if (unlikely(err)) {
+			kfree(ipc.opt);
 			return err;
+		}
 		if (ipc.opt)
 			free = 1;
 	}
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index bc35f18..7113bae 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -547,8 +547,10 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 
 	if (msg->msg_controllen) {
 		err = ip_cmsg_send(net, msg, &ipc, false);
-		if (err)
+		if (unlikely(err)) {
+			kfree(ipc.opt);
 			goto out;
+		}
 		if (ipc.opt)
 			free = 1;
 	}
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 85f184e..02c6229 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -129,6 +129,7 @@ static int ip_rt_mtu_expires __read_mostly	= 10 * 60 * HZ;
 static int ip_rt_min_pmtu __read_mostly		= 512 + 20 + 20;
 static int ip_rt_min_advmss __read_mostly	= 256;
 
+static int ip_rt_gc_timeout __read_mostly	= RT_GC_TIMEOUT;
 /*
  *	Interface to generic destination cache.
  */
@@ -755,7 +756,7 @@ static void __ip_do_redirect(struct rtable *rt, struct sk_buff *skb, struct flow
 				struct fib_nh *nh = &FIB_RES_NH(res);
 
 				update_or_create_fnhe(nh, fl4->daddr, new_gw,
-						      0, 0);
+						0, jiffies + ip_rt_gc_timeout);
 			}
 			if (kill_route)
 				rt->dst.obsolete = DST_OBSOLETE_KILL;
@@ -1556,6 +1557,36 @@ static void ip_handle_martian_source(struct net_device *dev,
 #endif
 }
 
+static void ip_del_fnhe(struct fib_nh *nh, __be32 daddr)
+{
+	struct fnhe_hash_bucket *hash;
+	struct fib_nh_exception *fnhe, __rcu **fnhe_p;
+	u32 hval = fnhe_hashfun(daddr);
+
+	spin_lock_bh(&fnhe_lock);
+
+	hash = rcu_dereference_protected(nh->nh_exceptions,
+					 lockdep_is_held(&fnhe_lock));
+	hash += hval;
+
+	fnhe_p = &hash->chain;
+	fnhe = rcu_dereference_protected(*fnhe_p, lockdep_is_held(&fnhe_lock));
+	while (fnhe) {
+		if (fnhe->fnhe_daddr == daddr) {
+			rcu_assign_pointer(*fnhe_p, rcu_dereference_protected(
+				fnhe->fnhe_next, lockdep_is_held(&fnhe_lock)));
+			fnhe_flush_routes(fnhe);
+			kfree_rcu(fnhe, rcu);
+			break;
+		}
+		fnhe_p = &fnhe->fnhe_next;
+		fnhe = rcu_dereference_protected(fnhe->fnhe_next,
+						 lockdep_is_held(&fnhe_lock));
+	}
+
+	spin_unlock_bh(&fnhe_lock);
+}
+
 /* called in rcu_read_lock() section */
 static int __mkroute_input(struct sk_buff *skb,
 			   const struct fib_result *res,
@@ -1609,11 +1640,20 @@ static int __mkroute_input(struct sk_buff *skb,
 
 	fnhe = find_exception(&FIB_RES_NH(*res), daddr);
 	if (do_cache) {
-		if (fnhe)
+		if (fnhe) {
 			rth = rcu_dereference(fnhe->fnhe_rth_input);
-		else
-			rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input);
+			if (rth && rth->dst.expires &&
+			    time_after(jiffies, rth->dst.expires)) {
+				ip_del_fnhe(&FIB_RES_NH(*res), daddr);
+				fnhe = NULL;
+			} else {
+				goto rt_cache;
+			}
+		}
+
+		rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input);
 
+rt_cache:
 		if (rt_cache_valid(rth)) {
 			skb_dst_set_noref(skb, &rth->dst);
 			goto out;
@@ -2014,19 +2054,29 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
 		struct fib_nh *nh = &FIB_RES_NH(*res);
 
 		fnhe = find_exception(nh, fl4->daddr);
-		if (fnhe)
+		if (fnhe) {
 			prth = &fnhe->fnhe_rth_output;
-		else {
-			if (unlikely(fl4->flowi4_flags &
-				     FLOWI_FLAG_KNOWN_NH &&
-				     !(nh->nh_gw &&
-				       nh->nh_scope == RT_SCOPE_LINK))) {
-				do_cache = false;
-				goto add;
+			rth = rcu_dereference(*prth);
+			if (rth && rth->dst.expires &&
+			    time_after(jiffies, rth->dst.expires)) {
+				ip_del_fnhe(nh, fl4->daddr);
+				fnhe = NULL;
+			} else {
+				goto rt_cache;
 			}
-			prth = raw_cpu_ptr(nh->nh_pcpu_rth_output);
 		}
+
+		if (unlikely(fl4->flowi4_flags &
+			     FLOWI_FLAG_KNOWN_NH &&
+			     !(nh->nh_gw &&
+			       nh->nh_scope == RT_SCOPE_LINK))) {
+			do_cache = false;
+			goto add;
+		}
+		prth = raw_cpu_ptr(nh->nh_pcpu_rth_output);
 		rth = rcu_dereference(*prth);
+
+rt_cache:
 		if (rt_cache_valid(rth)) {
 			dst_hold(&rth->dst);
 			return rth;
@@ -2569,7 +2619,6 @@ void ip_rt_multicast_event(struct in_device *in_dev)
 }
 
 #ifdef CONFIG_SYSCTL
-static int ip_rt_gc_timeout __read_mostly	= RT_GC_TIMEOUT;
 static int ip_rt_gc_interval __read_mostly  = 60 * HZ;
 static int ip_rt_gc_min_interval __read_mostly	= HZ / 2;
 static int ip_rt_gc_elasticity __read_mostly	= 8;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 19746b3..483ffdf 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -940,7 +940,7 @@ new_segment:
 
 		i = skb_shinfo(skb)->nr_frags;
 		can_coalesce = skb_can_coalesce(skb, i, page, offset);
-		if (!can_coalesce && i >= MAX_SKB_FRAGS) {
+		if (!can_coalesce && i >= sysctl_max_skb_frags) {
 			tcp_mark_push(tp, skb);
 			goto new_segment;
 		}
@@ -1213,7 +1213,7 @@ new_segment:
 
 			if (!skb_can_coalesce(skb, i, pfrag->page,
 					      pfrag->offset)) {
-				if (i == MAX_SKB_FRAGS || !sg) {
+				if (i == sysctl_max_skb_frags || !sg) {
 					tcp_mark_push(tp, skb);
 					goto new_segment;
 				}
@@ -2950,7 +2950,7 @@ static void __tcp_alloc_md5sig_pool(void)
 			struct crypto_hash *hash;
 
 			hash = crypto_alloc_hash("md5", 0, CRYPTO_ALG_ASYNC);
-			if (IS_ERR_OR_NULL(hash))
+			if (IS_ERR(hash))
 				return;
 			per_cpu(tcp_md5sig_pool, cpu).md5_desc.tfm = hash;
 		}
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 1c2a734..3b2c8e9 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2896,7 +2896,10 @@ static void tcp_update_rtt_min(struct sock *sk, u32 rtt_us)
 {
 	const u32 now = tcp_time_stamp, wlen = sysctl_tcp_min_rtt_wlen * HZ;
 	struct rtt_meas *m = tcp_sk(sk)->rtt_min;
-	struct rtt_meas rttm = { .rtt = (rtt_us ? : 1), .ts = now };
+	struct rtt_meas rttm = {
+		.rtt = likely(rtt_us) ? rtt_us : jiffies_to_usecs(1),
+		.ts = now,
+	};
 	u32 elapsed;
 
 	/* Check if the new measurement updates the 1st, 2nd, or 3rd choices */
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index a4d5237..487ac67 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -311,7 +311,7 @@ static void do_redirect(struct sk_buff *skb, struct sock *sk)
 
 
 /* handle ICMP messages on TCP_NEW_SYN_RECV request sockets */
-void tcp_req_err(struct sock *sk, u32 seq)
+void tcp_req_err(struct sock *sk, u32 seq, bool abort)
 {
 	struct request_sock *req = inet_reqsk(sk);
 	struct net *net = sock_net(sk);
@@ -323,7 +323,7 @@ void tcp_req_err(struct sock *sk, u32 seq)
 
 	if (seq != tcp_rsk(req)->snt_isn) {
 		NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
-	} else {
+	} else if (abort) {
 		/*
 		 * Still in SYN_RECV, just remove it silently.
 		 * There is no good way to pass the error to the newly
@@ -383,7 +383,12 @@ void tcp_v4_err(struct sk_buff *icmp_skb, u32 info)
 	}
 	seq = ntohl(th->seq);
 	if (sk->sk_state == TCP_NEW_SYN_RECV)
-		return tcp_req_err(sk, seq);
+		return tcp_req_err(sk, seq,
+				  type == ICMP_PARAMETERPROB ||
+				  type == ICMP_TIME_EXCEEDED ||
+				  (type == ICMP_DEST_UNREACH &&
+				   (code == ICMP_NET_UNREACH ||
+				    code == ICMP_HOST_UNREACH)));
 
 	bh_lock_sock(sk);
 	/* If too many ICMPs get dropped on busy
@@ -1592,28 +1597,30 @@ process:
 
 	if (sk->sk_state == TCP_NEW_SYN_RECV) {
 		struct request_sock *req = inet_reqsk(sk);
-		struct sock *nsk = NULL;
+		struct sock *nsk;
 
 		sk = req->rsk_listener;
-		if (tcp_v4_inbound_md5_hash(sk, skb))
-			goto discard_and_relse;
-		if (likely(sk->sk_state == TCP_LISTEN)) {
-			nsk = tcp_check_req(sk, skb, req, false);
-		} else {
+		if (unlikely(tcp_v4_inbound_md5_hash(sk, skb))) {
+			reqsk_put(req);
+			goto discard_it;
+		}
+		if (unlikely(sk->sk_state != TCP_LISTEN)) {
 			inet_csk_reqsk_queue_drop_and_put(sk, req);
 			goto lookup;
 		}
+		sock_hold(sk);
+		nsk = tcp_check_req(sk, skb, req, false);
 		if (!nsk) {
 			reqsk_put(req);
-			goto discard_it;
+			goto discard_and_relse;
 		}
 		if (nsk == sk) {
-			sock_hold(sk);
 			reqsk_put(req);
 		} else if (tcp_child_process(sk, nsk, skb)) {
 			tcp_v4_send_reset(nsk, skb);
-			goto discard_it;
+			goto discard_and_relse;
 		} else {
+			sock_put(sk);
 			return 0;
 		}
 	}
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index be0b218..95d2f19 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1048,8 +1048,10 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 	if (msg->msg_controllen) {
 		err = ip_cmsg_send(sock_net(sk), msg, &ipc,
 				   sk->sk_family == AF_INET6);
-		if (err)
+		if (unlikely(err)) {
+			kfree(ipc.opt);
 			return err;
+		}
 		if (ipc.opt)
 			free = 1;
 		connected = 0;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 38eedde..bdd7eac 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -583,7 +583,7 @@ static int inet6_netconf_get_devconf(struct sk_buff *in_skb,
 	if (err < 0)
 		goto errout;
 
-	err = EINVAL;
+	err = -EINVAL;
 	if (!tb[NETCONFA_IFINDEX])
 		goto errout;
 
@@ -3538,6 +3538,7 @@ static void addrconf_dad_begin(struct inet6_ifaddr *ifp)
 {
 	struct inet6_dev *idev = ifp->idev;
 	struct net_device *dev = idev->dev;
+	bool notify = false;
 
 	addrconf_join_solict(dev, &ifp->addr);
 
@@ -3583,7 +3584,7 @@ static void addrconf_dad_begin(struct inet6_ifaddr *ifp)
 			/* Because optimistic nodes can use this address,
 			 * notify listeners. If DAD fails, RTM_DELADDR is sent.
 			 */
-			ipv6_ifa_notify(RTM_NEWADDR, ifp);
+			notify = true;
 		}
 	}
 
@@ -3591,6 +3592,8 @@ static void addrconf_dad_begin(struct inet6_ifaddr *ifp)
 out:
 	spin_unlock(&ifp->lock);
 	read_unlock_bh(&idev->lock);
+	if (notify)
+		ipv6_ifa_notify(RTM_NEWADDR, ifp);
 }
 
 static void addrconf_dad_start(struct inet6_ifaddr *ifp)
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 1f9ebe3..dc2db4f 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -540,12 +540,13 @@ int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen)
 		}
 		spin_lock_bh(&ip6_sk_fl_lock);
 		for (sflp = &np->ipv6_fl_list;
-		     (sfl = rcu_dereference(*sflp)) != NULL;
+		     (sfl = rcu_dereference_protected(*sflp,
+						      lockdep_is_held(&ip6_sk_fl_lock))) != NULL;
 		     sflp = &sfl->next) {
 			if (sfl->fl->label == freq.flr_label) {
 				if (freq.flr_label == (np->flow_label&IPV6_FLOWLABEL_MASK))
 					np->flow_label &= ~IPV6_FLOWLABEL_MASK;
-				*sflp = rcu_dereference(sfl->next);
+				*sflp = sfl->next;
 				spin_unlock_bh(&ip6_sk_fl_lock);
 				fl_release(sfl->fl);
 				kfree_rcu(sfl, rcu);
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index f37f18b..a69aad1 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1512,6 +1512,7 @@ static void ip6gre_tap_setup(struct net_device *dev)
 	dev->destructor = ip6gre_dev_free;
 
 	dev->features |= NETIF_F_NETNS_LOCAL;
+	dev->priv_flags &= ~IFF_TX_SKB_SHARING;
 }
 
 static int ip6gre_newlink(struct net *src_net, struct net_device *dev,
diff --git a/net/ipv6/netfilter/nf_nat_masquerade_ipv6.c b/net/ipv6/netfilter/nf_nat_masquerade_ipv6.c
index 31ba7ca..051b6a6 100644
--- a/net/ipv6/netfilter/nf_nat_masquerade_ipv6.c
+++ b/net/ipv6/netfilter/nf_nat_masquerade_ipv6.c
@@ -21,6 +21,10 @@
 #include <net/ipv6.h>
 #include <net/netfilter/ipv6/nf_nat_masquerade.h>
 
+#define MAX_WORK_COUNT	16
+
+static atomic_t v6_worker_count;
+
 unsigned int
 nf_nat_masquerade_ipv6(struct sk_buff *skb, const struct nf_nat_range *range,
 		       const struct net_device *out)
@@ -78,14 +82,78 @@ static struct notifier_block masq_dev_notifier = {
 	.notifier_call	= masq_device_event,
 };
 
+struct masq_dev_work {
+	struct work_struct work;
+	struct net *net;
+	int ifindex;
+};
+
+static void iterate_cleanup_work(struct work_struct *work)
+{
+	struct masq_dev_work *w;
+	long index;
+
+	w = container_of(work, struct masq_dev_work, work);
+
+	index = w->ifindex;
+	nf_ct_iterate_cleanup(w->net, device_cmp, (void *)index, 0, 0);
+
+	put_net(w->net);
+	kfree(w);
+	atomic_dec(&v6_worker_count);
+	module_put(THIS_MODULE);
+}
+
+/* ipv6 inet notifier is an atomic notifier, i.e. we cannot
+ * schedule.
+ *
+ * Unfortunately, nf_ct_iterate_cleanup can run for a long
+ * time if there are lots of conntracks and the system
+ * handles high softirq load, so it frequently calls cond_resched
+ * while iterating the conntrack table.
+ *
+ * So we defer nf_ct_iterate_cleanup walk to the system workqueue.
+ *
+ * As we can have 'a lot' of inet_events (depending on amount
+ * of ipv6 addresses being deleted), we also need to add an upper
+ * limit to the number of queued work items.
+ */
 static int masq_inet_event(struct notifier_block *this,
 			   unsigned long event, void *ptr)
 {
 	struct inet6_ifaddr *ifa = ptr;
-	struct netdev_notifier_info info;
+	const struct net_device *dev;
+	struct masq_dev_work *w;
+	struct net *net;
+
+	if (event != NETDEV_DOWN ||
+	    atomic_read(&v6_worker_count) >= MAX_WORK_COUNT)
+		return NOTIFY_DONE;
+
+	dev = ifa->idev->dev;
+	net = maybe_get_net(dev_net(dev));
+	if (!net)
+		return NOTIFY_DONE;
 
-	netdev_notifier_info_init(&info, ifa->idev->dev);
-	return masq_device_event(this, event, &info);
+	if (!try_module_get(THIS_MODULE))
+		goto err_module;
+
+	w = kmalloc(sizeof(*w), GFP_ATOMIC);
+	if (w) {
+		atomic_inc(&v6_worker_count);
+
+		INIT_WORK(&w->work, iterate_cleanup_work);
+		w->ifindex = dev->ifindex;
+		w->net = net;
+		schedule_work(&w->work);
+
+		return NOTIFY_DONE;
+	}
+
+	module_put(THIS_MODULE);
+ err_module:
+	put_net(net);
+	return NOTIFY_DONE;
 }
 
 static struct notifier_block masq_inet_notifier = {
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 006396e..5c8c842 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -327,6 +327,7 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	struct tcp_sock *tp;
 	__u32 seq, snd_una;
 	struct sock *sk;
+	bool fatal;
 	int err;
 
 	sk = __inet6_lookup_established(net, &tcp_hashinfo,
@@ -345,8 +346,9 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 		return;
 	}
 	seq = ntohl(th->seq);
+	fatal = icmpv6_err_convert(type, code, &err);
 	if (sk->sk_state == TCP_NEW_SYN_RECV)
-		return tcp_req_err(sk, seq);
+		return tcp_req_err(sk, seq, fatal);
 
 	bh_lock_sock(sk);
 	if (sock_owned_by_user(sk) && type != ICMPV6_PKT_TOOBIG)
@@ -400,7 +402,6 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 		goto out;
 	}
 
-	icmpv6_err_convert(type, code, &err);
 
 	/* Might be for an request_sock */
 	switch (sk->sk_state) {
@@ -1386,7 +1387,7 @@ process:
 
 	if (sk->sk_state == TCP_NEW_SYN_RECV) {
 		struct request_sock *req = inet_reqsk(sk);
-		struct sock *nsk = NULL;
+		struct sock *nsk;
 
 		sk = req->rsk_listener;
 		tcp_v6_fill_cb(skb, hdr, th);
@@ -1394,24 +1395,24 @@ process:
 			reqsk_put(req);
 			goto discard_it;
 		}
-		if (likely(sk->sk_state == TCP_LISTEN)) {
-			nsk = tcp_check_req(sk, skb, req, false);
-		} else {
+		if (unlikely(sk->sk_state != TCP_LISTEN)) {
 			inet_csk_reqsk_queue_drop_and_put(sk, req);
 			goto lookup;
 		}
+		sock_hold(sk);
+		nsk = tcp_check_req(sk, skb, req, false);
 		if (!nsk) {
 			reqsk_put(req);
-			goto discard_it;
+			goto discard_and_relse;
 		}
 		if (nsk == sk) {
-			sock_hold(sk);
 			reqsk_put(req);
 			tcp_v6_restore_cb(skb);
 		} else if (tcp_child_process(sk, nsk, skb)) {
 			tcp_v6_send_reset(nsk, skb);
-			goto discard_it;
+			goto discard_and_relse;
 		} else {
+			sock_put(sk);
 			return 0;
 		}
 	}
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index f93c5be..2caaa84 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -124,8 +124,13 @@ static int l2tp_tunnel_notify(struct genl_family *family,
 	ret = l2tp_nl_tunnel_send(msg, info->snd_portid, info->snd_seq,
 				  NLM_F_ACK, tunnel, cmd);
 
-	if (ret >= 0)
-		return genlmsg_multicast_allns(family, msg, 0,	0, GFP_ATOMIC);
+	if (ret >= 0) {
+		ret = genlmsg_multicast_allns(family, msg, 0, 0, GFP_ATOMIC);
+		/* We don't care if no one is listening */
+		if (ret == -ESRCH)
+			ret = 0;
+		return ret;
+	}
 
 	nlmsg_free(msg);
 
@@ -147,8 +152,13 @@ static int l2tp_session_notify(struct genl_family *family,
 	ret = l2tp_nl_session_send(msg, info->snd_portid, info->snd_seq,
 				   NLM_F_ACK, session, cmd);
 
-	if (ret >= 0)
-		return genlmsg_multicast_allns(family, msg, 0,	0, GFP_ATOMIC);
+	if (ret >= 0) {
+		ret = genlmsg_multicast_allns(family, msg, 0, 0, GFP_ATOMIC);
+		/* We don't care if no one is listening */
+		if (ret == -ESRCH)
+			ret = 0;
+		return ret;
+	}
 
 	nlmsg_free(msg);
 
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 8c067e6..95e757c 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -891,7 +891,7 @@ config NETFILTER_XT_TARGET_TEE
 	depends on IPV6 || IPV6=n
 	depends on !NF_CONNTRACK || NF_CONNTRACK
 	select NF_DUP_IPV4
-	select NF_DUP_IPV6 if IP6_NF_IPTABLES != n
+	select NF_DUP_IPV6 if IPV6
 	---help---
 	This option adds a "TEE" target with which a packet can be cloned and
 	this clone be rerouted to another nexthop.
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 58882de..f60b4fd 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1412,6 +1412,7 @@ get_next_corpse(struct net *net, int (*iter)(struct nf_conn *i, void *data),
 		}
 		spin_unlock(lockp);
 		local_bh_enable();
+		cond_resched();
 	}
 
 	for_each_possible_cpu(cpu) {
@@ -1424,6 +1425,7 @@ get_next_corpse(struct net *net, int (*iter)(struct nf_conn *i, void *data),
 				set_bit(IPS_DYING_BIT, &ct->status);
 		}
 		spin_unlock_bh(&pcpu->lock);
+		cond_resched();
 	}
 	return NULL;
 found:
@@ -1440,6 +1442,8 @@ void nf_ct_iterate_cleanup(struct net *net,
 	struct nf_conn *ct;
 	unsigned int bucket = 0;
 
+	might_sleep();
+
 	while ((ct = get_next_corpse(net, iter, data, &bucket)) != NULL) {
 		/* Time to push up daises... */
 		if (del_timer(&ct->timeout))
@@ -1448,6 +1452,7 @@ void nf_ct_iterate_cleanup(struct net *net,
 		/* ... else the timer will get him soon. */
 
 		nf_ct_put(ct);
+		cond_resched();
 	}
 }
 EXPORT_SYMBOL_GPL(nf_ct_iterate_cleanup);
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index a7ba233..857ae89 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -311,14 +311,14 @@ replay:
 #endif
 		{
 			nfnl_unlock(subsys_id);
-			netlink_ack(skb, nlh, -EOPNOTSUPP);
+			netlink_ack(oskb, nlh, -EOPNOTSUPP);
 			return kfree_skb(skb);
 		}
 	}
 
 	if (!ss->commit || !ss->abort) {
 		nfnl_unlock(subsys_id);
-		netlink_ack(skb, nlh, -EOPNOTSUPP);
+		netlink_ack(oskb, nlh, -EOPNOTSUPP);
 		return kfree_skb(skb);
 	}
 
@@ -328,10 +328,12 @@ replay:
 		nlh = nlmsg_hdr(skb);
 		err = 0;
 
-		if (nlmsg_len(nlh) < sizeof(struct nfgenmsg) ||
-		    skb->len < nlh->nlmsg_len) {
-			err = -EINVAL;
-			goto ack;
+		if (nlh->nlmsg_len < NLMSG_HDRLEN ||
+		    skb->len < nlh->nlmsg_len ||
+		    nlmsg_len(nlh) < sizeof(struct nfgenmsg)) {
+			nfnl_err_reset(&err_list);
+			status |= NFNL_BATCH_FAILURE;
+			goto done;
 		}
 
 		/* Only requests are handled by the kernel */
@@ -406,7 +408,7 @@ ack:
 				 * pointing to the batch header.
 				 */
 				nfnl_err_reset(&err_list);
-				netlink_ack(skb, nlmsg_hdr(oskb), -ENOMEM);
+				netlink_ack(oskb, nlmsg_hdr(oskb), -ENOMEM);
 				status |= NFNL_BATCH_FAILURE;
 				goto done;
 			}
diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c
index 94837d2..2671b9d 100644
--- a/net/netfilter/nfnetlink_cttimeout.c
+++ b/net/netfilter/nfnetlink_cttimeout.c
@@ -312,7 +312,7 @@ static void ctnl_untimeout(struct net *net, struct ctnl_timeout *timeout)
 			hlist_nulls_for_each_entry(h, nn, &net->ct.hash[i], hnnode)
 				untimeout(h, timeout);
 		}
-		nf_conntrack_lock(&nf_conntrack_locks[i % CONNTRACK_LOCKS]);
+		spin_unlock(&nf_conntrack_locks[i % CONNTRACK_LOCKS]);
 	}
 	local_bh_enable();
 }
diff --git a/net/netfilter/nft_counter.c b/net/netfilter/nft_counter.c
index c7808fc..c9743f7 100644
--- a/net/netfilter/nft_counter.c
+++ b/net/netfilter/nft_counter.c
@@ -100,7 +100,7 @@ static int nft_counter_init(const struct nft_ctx *ctx,
 
 	cpu_stats = netdev_alloc_pcpu_stats(struct nft_counter_percpu);
 	if (cpu_stats == NULL)
-		return ENOMEM;
+		return -ENOMEM;
 
 	preempt_disable();
 	this_cpu = this_cpu_ptr(cpu_stats);
@@ -138,7 +138,7 @@ static int nft_counter_clone(struct nft_expr *dst, const struct nft_expr *src)
 	cpu_stats = __netdev_alloc_pcpu_stats(struct nft_counter_percpu,
 					      GFP_ATOMIC);
 	if (cpu_stats == NULL)
-		return ENOMEM;
+		return -ENOMEM;
 
 	preempt_disable();
 	this_cpu = this_cpu_ptr(cpu_stats);
diff --git a/net/netfilter/xt_TEE.c b/net/netfilter/xt_TEE.c
index 3eff7b6..6e57a39 100644
--- a/net/netfilter/xt_TEE.c
+++ b/net/netfilter/xt_TEE.c
@@ -38,7 +38,7 @@ tee_tg4(struct sk_buff *skb, const struct xt_action_param *par)
 	return XT_CONTINUE;
 }
 
-#if IS_ENABLED(CONFIG_NF_DUP_IPV6)
+#if IS_ENABLED(CONFIG_IPV6)
 static unsigned int
 tee_tg6(struct sk_buff *skb, const struct xt_action_param *par)
 {
@@ -131,7 +131,7 @@ static struct xt_target tee_tg_reg[] __read_mostly = {
 		.destroy    = tee_tg_destroy,
 		.me         = THIS_MODULE,
 	},
-#if IS_ENABLED(CONFIG_NF_DUP_IPV6)
+#if IS_ENABLED(CONFIG_IPV6)
 	{
 		.name       = "TEE",
 		.revision   = 1,
diff --git a/net/openvswitch/vport-vxlan.c b/net/openvswitch/vport-vxlan.c
index 1605691..5eb7694 100644
--- a/net/openvswitch/vport-vxlan.c
+++ b/net/openvswitch/vport-vxlan.c
@@ -90,7 +90,9 @@ static struct vport *vxlan_tnl_create(const struct vport_parms *parms)
 	int err;
 	struct vxlan_config conf = {
 		.no_share = true,
-		.flags = VXLAN_F_COLLECT_METADATA,
+		.flags = VXLAN_F_COLLECT_METADATA | VXLAN_F_UDP_ZERO_CSUM6_RX,
+		/* Don't restrict the packets that can be sent by MTU */
+		.mtu = IP_MAX_MTU,
 	};
 
 	if (!options) {
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index b5c2cf2..af1acf0 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1852,6 +1852,7 @@ reset:
 	}
 
 	tp = old_tp;
+	protocol = tc_skb_protocol(skb);
 	goto reclassify;
 #endif
 }
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index ab0d538..1099e99 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -60,6 +60,8 @@
 #include <net/inet_common.h>
 #include <net/inet_ecn.h>
 
+#define MAX_SCTP_PORT_HASH_ENTRIES (64 * 1024)
+
 /* Global data structures. */
 struct sctp_globals sctp_globals __read_mostly;
 
@@ -1355,6 +1357,8 @@ static __init int sctp_init(void)
 	unsigned long limit;
 	int max_share;
 	int order;
+	int num_entries;
+	int max_entry_order;
 
 	sock_skb_cb_check_size(sizeof(struct sctp_ulpevent));
 
@@ -1407,14 +1411,24 @@ static __init int sctp_init(void)
 
 	/* Size and allocate the association hash table.
 	 * The methodology is similar to that of the tcp hash tables.
+	 * Though not identical.  Start by getting a goal size
 	 */
 	if (totalram_pages >= (128 * 1024))
 		goal = totalram_pages >> (22 - PAGE_SHIFT);
 	else
 		goal = totalram_pages >> (24 - PAGE_SHIFT);
 
-	for (order = 0; (1UL << order) < goal; order++)
-		;
+	/* Then compute the page order for said goal */
+	order = get_order(goal);
+
+	/* Now compute the required page order for the maximum sized table we
+	 * want to create
+	 */
+	max_entry_order = get_order(MAX_SCTP_PORT_HASH_ENTRIES *
+				    sizeof(struct sctp_bind_hashbucket));
+
+	/* Limit the page order by that maximum hash table size */
+	order = min(order, max_entry_order);
 
 	/* Allocate and initialize the endpoint hash table.  */
 	sctp_ep_hashsize = 64;
@@ -1430,20 +1444,35 @@ static __init int sctp_init(void)
 		INIT_HLIST_HEAD(&sctp_ep_hashtable[i].chain);
 	}
 
-	/* Allocate and initialize the SCTP port hash table.  */
+	/* Allocate and initialize the SCTP port hash table.
+	 * Note that order is initalized to start at the max sized
+	 * table we want to support.  If we can't get that many pages
+	 * reduce the order and try again
+	 */
 	do {
-		sctp_port_hashsize = (1UL << order) * PAGE_SIZE /
-					sizeof(struct sctp_bind_hashbucket);
-		if ((sctp_port_hashsize > (64 * 1024)) && order > 0)
-			continue;
 		sctp_port_hashtable = (struct sctp_bind_hashbucket *)
 			__get_free_pages(GFP_KERNEL | __GFP_NOWARN, order);
 	} while (!sctp_port_hashtable && --order > 0);
+
 	if (!sctp_port_hashtable) {
 		pr_err("Failed bind hash alloc\n");
 		status = -ENOMEM;
 		goto err_bhash_alloc;
 	}
+
+	/* Now compute the number of entries that will fit in the
+	 * port hash space we allocated
+	 */
+	num_entries = (1UL << order) * PAGE_SIZE /
+		      sizeof(struct sctp_bind_hashbucket);
+
+	/* And finish by rounding it down to the nearest power of two
+	 * this wastes some memory of course, but its needed because
+	 * the hash function operates based on the assumption that
+	 * that the number of entries is a power of two
+	 */
+	sctp_port_hashsize = rounddown_pow_of_two(num_entries);
+
 	for (i = 0; i < sctp_port_hashsize; i++) {
 		spin_lock_init(&sctp_port_hashtable[i].lock);
 		INIT_HLIST_HEAD(&sctp_port_hashtable[i].chain);
@@ -1452,7 +1481,8 @@ static __init int sctp_init(void)
 	if (sctp_transport_hashtable_init())
 		goto err_thash_alloc;
 
-	pr_info("Hash tables configured (bind %d)\n", sctp_port_hashsize);
+	pr_info("Hash tables configured (bind %d/%d)\n", sctp_port_hashsize,
+		num_entries);
 
 	sctp_sysctl_register();
 
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 5ca2ebf..e878da0 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -5538,6 +5538,7 @@ static int sctp_getsockopt_hmac_ident(struct sock *sk, int len,
 	struct sctp_hmac_algo_param *hmacs;
 	__u16 data_len = 0;
 	u32 num_idents;
+	int i;
 
 	if (!ep->auth_enable)
 		return -EACCES;
@@ -5555,8 +5556,12 @@ static int sctp_getsockopt_hmac_ident(struct sock *sk, int len,
 		return -EFAULT;
 	if (put_user(num_idents, &p->shmac_num_idents))
 		return -EFAULT;
-	if (copy_to_user(p->shmac_idents, hmacs->hmac_ids, data_len))
-		return -EFAULT;
+	for (i = 0; i < num_idents; i++) {
+		__u16 hmacid = ntohs(hmacs->hmac_ids[i]);
+
+		if (copy_to_user(&p->shmac_idents[i], &hmacid, sizeof(__u16)))
+			return -EFAULT;
+	}
 	return 0;
 }
 
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 799e65b..cabf586 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -740,7 +740,7 @@ gss_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
 		default:
 			printk(KERN_CRIT "%s: bad return from "
 				"gss_fill_context: %zd\n", __func__, err);
-			BUG();
+			gss_msg->msg.errno = -EIO;
 		}
 		goto err_release_msg;
 	}
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 2b32fd6..273bc3a 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -1225,7 +1225,7 @@ int qword_get(char **bpp, char *dest, int bufsize)
 	if (bp[0] == '\\' && bp[1] == 'x') {
 		/* HEX STRING */
 		bp += 2;
-		while (len < bufsize) {
+		while (len < bufsize - 1) {
 			int h, l;
 
 			h = hex_to_bin(bp[0]);
diff --git a/net/sunrpc/xprtrdma/backchannel.c b/net/sunrpc/xprtrdma/backchannel.c
index cc1251d..2dcd764 100644
--- a/net/sunrpc/xprtrdma/backchannel.c
+++ b/net/sunrpc/xprtrdma/backchannel.c
@@ -341,6 +341,8 @@ void rpcrdma_bc_receive_call(struct rpcrdma_xprt *r_xprt,
 	rqst->rq_reply_bytes_recvd = 0;
 	rqst->rq_bytes_sent = 0;
 	rqst->rq_xid = headerp->rm_xid;
+
+	rqst->rq_private_buf.len = size;
 	set_bit(RPC_BC_PA_IN_USE, &rqst->rq_bc_pa_state);
 
 	buf = &rqst->rq_rcv_buf;
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 0c2944f..347cdc9 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1973,8 +1973,10 @@ int tipc_nl_add_bc_link(struct net *net, struct tipc_nl_msg *msg)
 
 	hdr = genlmsg_put(msg->skb, msg->portid, msg->seq, &tipc_genl_family,
 			  NLM_F_MULTI, TIPC_NL_LINK_GET);
-	if (!hdr)
+	if (!hdr) {
+		tipc_bcast_unlock(net);
 		return -EMSGSIZE;
+	}
 
 	attrs = nla_nest_start(msg->skb, TIPC_NLA_LINK);
 	if (!attrs)
diff --git a/net/tipc/node.c b/net/tipc/node.c
index fa97d96..9d7a16f 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -346,12 +346,6 @@ struct tipc_node *tipc_node_create(struct net *net, u32 addr, u16 capabilities)
 	skb_queue_head_init(&n->bc_entry.inputq2);
 	for (i = 0; i < MAX_BEARERS; i++)
 		spin_lock_init(&n->links[i].lock);
-	hlist_add_head_rcu(&n->hash, &tn->node_htable[tipc_hashfn(addr)]);
-	list_for_each_entry_rcu(temp_node, &tn->node_list, list) {
-		if (n->addr < temp_node->addr)
-			break;
-	}
-	list_add_tail_rcu(&n->list, &temp_node->list);
 	n->state = SELF_DOWN_PEER_LEAVING;
 	n->signature = INVALID_NODE_SIG;
 	n->active_links[0] = INVALID_BEARER_ID;
@@ -372,6 +366,12 @@ struct tipc_node *tipc_node_create(struct net *net, u32 addr, u16 capabilities)
 	tipc_node_get(n);
 	setup_timer(&n->timer, tipc_node_timeout, (unsigned long)n);
 	n->keepalive_intv = U32_MAX;
+	hlist_add_head_rcu(&n->hash, &tn->node_htable[tipc_hashfn(addr)]);
+	list_for_each_entry_rcu(temp_node, &tn->node_list, list) {
+		if (n->addr < temp_node->addr)
+			break;
+	}
+	list_add_tail_rcu(&n->list, &temp_node->list);
 exit:
 	spin_unlock_bh(&tn->node_list_lock);
 	return n;
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 49d5093..f75f847 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1496,7 +1496,7 @@ static void unix_detach_fds(struct scm_cookie *scm, struct sk_buff *skb)
 	UNIXCB(skb).fp = NULL;
 
 	for (i = scm->fp->count-1; i >= 0; i--)
-		unix_notinflight(scm->fp->fp[i]);
+		unix_notinflight(scm->fp->user, scm->fp->fp[i]);
 }
 
 static void unix_destruct_scm(struct sk_buff *skb)
@@ -1561,7 +1561,7 @@ static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)
 		return -ENOMEM;
 
 	for (i = scm->fp->count - 1; i >= 0; i--)
-		unix_inflight(scm->fp->fp[i]);
+		unix_inflight(scm->fp->user, scm->fp->fp[i]);
 	return max_level;
 }
 
@@ -1781,7 +1781,12 @@ restart_locked:
 			goto out_unlock;
 	}
 
-	if (unlikely(unix_peer(other) != sk && unix_recvq_full(other))) {
+	/* other == sk && unix_peer(other) != sk if
+	 * - unix_peer(sk) == NULL, destination address bound to sk
+	 * - unix_peer(sk) == sk by time of get but disconnected before lock
+	 */
+	if (other != sk &&
+	    unlikely(unix_peer(other) != sk && unix_recvq_full(other))) {
 		if (timeo) {
 			timeo = unix_wait_for_peer(other, timeo);
 
@@ -2277,13 +2282,15 @@ static int unix_stream_read_generic(struct unix_stream_read_state *state)
 	size_t size = state->size;
 	unsigned int last_len;
 
-	err = -EINVAL;
-	if (sk->sk_state != TCP_ESTABLISHED)
+	if (unlikely(sk->sk_state != TCP_ESTABLISHED)) {
+		err = -EINVAL;
 		goto out;
+	}
 
-	err = -EOPNOTSUPP;
-	if (flags & MSG_OOB)
+	if (unlikely(flags & MSG_OOB)) {
+		err = -EOPNOTSUPP;
 		goto out;
+	}
 
 	target = sock_rcvlowat(sk, flags & MSG_WAITALL, size);
 	timeo = sock_rcvtimeo(sk, noblock);
@@ -2305,6 +2312,7 @@ static int unix_stream_read_generic(struct unix_stream_read_state *state)
 		bool drop_skb;
 		struct sk_buff *skb, *last;
 
+redo:
 		unix_state_lock(sk);
 		if (sock_flag(sk, SOCK_DEAD)) {
 			err = -ECONNRESET;
@@ -2329,9 +2337,11 @@ again:
 				goto unlock;
 
 			unix_state_unlock(sk);
-			err = -EAGAIN;
-			if (!timeo)
+			if (!timeo) {
+				err = -EAGAIN;
 				break;
+			}
+
 			mutex_unlock(&u->readlock);
 
 			timeo = unix_stream_data_wait(sk, timeo, last,
@@ -2344,7 +2354,7 @@ again:
 			}
 
 			mutex_lock(&u->readlock);
-			continue;
+			goto redo;
 unlock:
 			unix_state_unlock(sk);
 			break;
diff --git a/net/unix/diag.c b/net/unix/diag.c
index c512f64..4d96797 100644
--- a/net/unix/diag.c
+++ b/net/unix/diag.c
@@ -220,7 +220,7 @@ done:
 	return skb->len;
 }
 
-static struct sock *unix_lookup_by_ino(int ino)
+static struct sock *unix_lookup_by_ino(unsigned int ino)
 {
 	int i;
 	struct sock *sk;
diff --git a/net/unix/garbage.c b/net/unix/garbage.c
index 8fcdc22..6a0d485 100644
--- a/net/unix/garbage.c
+++ b/net/unix/garbage.c
@@ -116,7 +116,7 @@ struct sock *unix_get_socket(struct file *filp)
  * descriptor if it is for an AF_UNIX socket.
  */
 
-void unix_inflight(struct file *fp)
+void unix_inflight(struct user_struct *user, struct file *fp)
 {
 	struct sock *s = unix_get_socket(fp);
 
@@ -133,11 +133,11 @@ void unix_inflight(struct file *fp)
 		}
 		unix_tot_inflight++;
 	}
-	fp->f_cred->user->unix_inflight++;
+	user->unix_inflight++;
 	spin_unlock(&unix_gc_lock);
 }
 
-void unix_notinflight(struct file *fp)
+void unix_notinflight(struct user_struct *user, struct file *fp)
 {
 	struct sock *s = unix_get_socket(fp);
 
@@ -152,7 +152,7 @@ void unix_notinflight(struct file *fp)
 			list_del_init(&u->link);
 		unix_tot_inflight--;
 	}
-	fp->f_cred->user->unix_inflight--;
+	user->unix_inflight--;
 	spin_unlock(&unix_gc_lock);
 }
 
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 7fd1220..bbe65dc 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1557,8 +1557,6 @@ static int vsock_stream_sendmsg(struct socket *sock, struct msghdr *msg,
 	if (err < 0)
 		goto out;
 
-	prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
-
 	while (total_written < len) {
 		ssize_t written;
 
@@ -1578,7 +1576,9 @@ static int vsock_stream_sendmsg(struct socket *sock, struct msghdr *msg,
 				goto out_wait;
 
 			release_sock(sk);
+			prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
 			timeout = schedule_timeout(timeout);
+			finish_wait(sk_sleep(sk), &wait);
 			lock_sock(sk);
 			if (signal_pending(current)) {
 				err = sock_intr_errno(timeout);
@@ -1588,8 +1588,6 @@ static int vsock_stream_sendmsg(struct socket *sock, struct msghdr *msg,
 				goto out_wait;
 			}
 
-			prepare_to_wait(sk_sleep(sk), &wait,
-					TASK_INTERRUPTIBLE);
 		}
 
 		/* These checks occur both as part of and after the loop
@@ -1635,7 +1633,6 @@ static int vsock_stream_sendmsg(struct socket *sock, struct msghdr *msg,
 out_wait:
 	if (total_written > 0)
 		err = total_written;
-	finish_wait(sk_sleep(sk), &wait);
 out:
 	release_sock(sk);
 	return err;
@@ -1716,7 +1713,6 @@ vsock_stream_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 	if (err < 0)
 		goto out;
 
-	prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
 
 	while (1) {
 		s64 ready = vsock_stream_has_data(vsk);
@@ -1727,7 +1723,7 @@ vsock_stream_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 			 */
 
 			err = -ENOMEM;
-			goto out_wait;
+			goto out;
 		} else if (ready > 0) {
 			ssize_t read;
 
@@ -1750,7 +1746,7 @@ vsock_stream_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 					vsk, target, read,
 					!(flags & MSG_PEEK), &recv_data);
 			if (err < 0)
-				goto out_wait;
+				goto out;
 
 			if (read >= target || flags & MSG_PEEK)
 				break;
@@ -1773,7 +1769,9 @@ vsock_stream_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 				break;
 
 			release_sock(sk);
+			prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
 			timeout = schedule_timeout(timeout);
+			finish_wait(sk_sleep(sk), &wait);
 			lock_sock(sk);
 
 			if (signal_pending(current)) {
@@ -1783,9 +1781,6 @@ vsock_stream_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 				err = -EAGAIN;
 				break;
 			}
-
-			prepare_to_wait(sk_sleep(sk), &wait,
-					TASK_INTERRUPTIBLE);
 		}
 	}
 
@@ -1816,8 +1811,6 @@ vsock_stream_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 		err = copied;
 	}
 
-out_wait:
-	finish_wait(sk_sleep(sk), &wait);
 out:
 	release_sock(sk);
 	return err;
diff --git a/scripts/prune-kernel b/scripts/prune-kernel
new file mode 100755
index 0000000..ab5034e
--- /dev/null
+++ b/scripts/prune-kernel
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# because I use CONFIG_LOCALVERSION_AUTO, not the same version again and
+# again, /boot and /lib/modules/ eventually fill up.
+# Dumb script to purge that stuff:
+
+for f in "$@"
+do
+        if rpm -qf "/lib/modules/$f" >/dev/null; then
+                echo "keeping $f (installed from rpm)"
+        elif [ $(uname -r) = "$f" ]; then
+                echo "keeping $f (running kernel) "
+        else
+                echo "removing $f"
+                rm -f "/boot/initramfs-$f.img" "/boot/System.map-$f"
+                rm -f "/boot/vmlinuz-$f"   "/boot/config-$f"
+                rm -rf "/lib/modules/$f"
+                new-kernel-pkg --remove $f
+        fi
+done
diff --git a/scripts/ver_linux b/scripts/ver_linux
index 024a11a..0d8bd29 100755
--- a/scripts/ver_linux
+++ b/scripts/ver_linux
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Before running this script please ensure that your PATH is
-# typical as you use for compilation/istallation. I use
+# typical as you use for compilation/installation. I use
 # /bin /sbin /usr/bin /usr/sbin /usr/local/bin, but it may
 # differ on your system.
 #
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index f716025..e6ea9d4 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -23,6 +23,7 @@
 #include <linux/integrity.h>
 #include <linux/evm.h>
 #include <crypto/hash.h>
+#include <crypto/algapi.h>
 #include "evm.h"
 
 int evm_initialized;
@@ -148,7 +149,7 @@ static enum integrity_status evm_verify_hmac(struct dentry *dentry,
 				   xattr_value_len, calc.digest);
 		if (rc)
 			break;
-		rc = memcmp(xattr_data->digest, calc.digest,
+		rc = crypto_memneq(xattr_data->digest, calc.digest,
 			    sizeof(calc.digest));
 		if (rc)
 			rc = -EINVAL;
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index f8110cf..f1ab715 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -3249,7 +3249,7 @@ static int selinux_inode_listsecurity(struct inode *inode, char *buffer, size_t
 
 static void selinux_inode_getsecid(struct inode *inode, u32 *secid)
 {
-	struct inode_security_struct *isec = inode_security(inode);
+	struct inode_security_struct *isec = inode_security_novalidate(inode);
 	*secid = isec->sid;
 }
 
diff --git a/security/selinux/nlmsgtab.c b/security/selinux/nlmsgtab.c
index 2bbb418..8495b93 100644
--- a/security/selinux/nlmsgtab.c
+++ b/security/selinux/nlmsgtab.c
@@ -83,6 +83,7 @@ static struct nlmsg_perm nlmsg_tcpdiag_perms[] =
 	{ TCPDIAG_GETSOCK,	NETLINK_TCPDIAG_SOCKET__NLMSG_READ },
 	{ DCCPDIAG_GETSOCK,	NETLINK_TCPDIAG_SOCKET__NLMSG_READ },
 	{ SOCK_DIAG_BY_FAMILY,	NETLINK_TCPDIAG_SOCKET__NLMSG_READ },
+	{ SOCK_DESTROY,		NETLINK_TCPDIAG_SOCKET__NLMSG_WRITE },
 };
 
 static struct nlmsg_perm nlmsg_xfrm_perms[] =
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index fadd3eb..9106d8e 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -74,6 +74,18 @@ static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream);
 static DEFINE_RWLOCK(snd_pcm_link_rwlock);
 static DECLARE_RWSEM(snd_pcm_link_rwsem);
 
+/* Writer in rwsem may block readers even during its waiting in queue,
+ * and this may lead to a deadlock when the code path takes read sem
+ * twice (e.g. one in snd_pcm_action_nonatomic() and another in
+ * snd_pcm_stream_lock()).  As a (suboptimal) workaround, let writer to
+ * spin until it gets the lock.
+ */
+static inline void down_write_nonblock(struct rw_semaphore *lock)
+{
+	while (!down_write_trylock(lock))
+		cond_resched();
+}
+
 /**
  * snd_pcm_stream_lock - Lock the PCM stream
  * @substream: PCM substream
@@ -1813,7 +1825,7 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
 		res = -ENOMEM;
 		goto _nolock;
 	}
-	down_write(&snd_pcm_link_rwsem);
+	down_write_nonblock(&snd_pcm_link_rwsem);
 	write_lock_irq(&snd_pcm_link_rwlock);
 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN ||
 	    substream->runtime->status->state != substream1->runtime->status->state ||
@@ -1860,7 +1872,7 @@ static int snd_pcm_unlink(struct snd_pcm_substream *substream)
 	struct snd_pcm_substream *s;
 	int res = 0;
 
-	down_write(&snd_pcm_link_rwsem);
+	down_write_nonblock(&snd_pcm_link_rwsem);
 	write_lock_irq(&snd_pcm_link_rwlock);
 	if (!snd_pcm_stream_linked(substream)) {
 		res = -EALREADY;
diff --git a/sound/core/seq/seq_memory.c b/sound/core/seq/seq_memory.c
index 8010766..c850345 100644
--- a/sound/core/seq/seq_memory.c
+++ b/sound/core/seq/seq_memory.c
@@ -383,15 +383,20 @@ int snd_seq_pool_init(struct snd_seq_pool *pool)
 
 	if (snd_BUG_ON(!pool))
 		return -EINVAL;
-	if (pool->ptr)			/* should be atomic? */
-		return 0;
 
-	pool->ptr = vmalloc(sizeof(struct snd_seq_event_cell) * pool->size);
-	if (!pool->ptr)
+	cellptr = vmalloc(sizeof(struct snd_seq_event_cell) * pool->size);
+	if (!cellptr)
 		return -ENOMEM;
 
 	/* add new cells to the free cell list */
 	spin_lock_irqsave(&pool->lock, flags);
+	if (pool->ptr) {
+		spin_unlock_irqrestore(&pool->lock, flags);
+		vfree(cellptr);
+		return 0;
+	}
+
+	pool->ptr = cellptr;
 	pool->free = NULL;
 
 	for (cell = 0; cell < pool->size; cell++) {
diff --git a/sound/core/seq/seq_ports.c b/sound/core/seq/seq_ports.c
index 921fb2b..fe686ee 100644
--- a/sound/core/seq/seq_ports.c
+++ b/sound/core/seq/seq_ports.c
@@ -535,19 +535,22 @@ static void delete_and_unsubscribe_port(struct snd_seq_client *client,
 					bool is_src, bool ack)
 {
 	struct snd_seq_port_subs_info *grp;
+	struct list_head *list;
+	bool empty;
 
 	grp = is_src ? &port->c_src : &port->c_dest;
+	list = is_src ? &subs->src_list : &subs->dest_list;
 	down_write(&grp->list_mutex);
 	write_lock_irq(&grp->list_lock);
-	if (is_src)
-		list_del(&subs->src_list);
-	else
-		list_del(&subs->dest_list);
+	empty = list_empty(list);
+	if (!empty)
+		list_del_init(list);
 	grp->exclusive = 0;
 	write_unlock_irq(&grp->list_lock);
 	up_write(&grp->list_mutex);
 
-	unsubscribe_port(client, port, grp, &subs->info, ack);
+	if (!empty)
+		unsubscribe_port(client, port, grp, &subs->info, ack);
 }
 
 /* connect two ports */
diff --git a/sound/core/timer.c b/sound/core/timer.c
index 9b513a0..dca817f 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -422,7 +422,7 @@ static void snd_timer_notify1(struct snd_timer_instance *ti, int event)
 	spin_lock_irqsave(&timer->lock, flags);
 	list_for_each_entry(ts, &ti->slave_active_head, active_list)
 		if (ts->ccallback)
-			ts->ccallback(ti, event + 100, &tstamp, resolution);
+			ts->ccallback(ts, event + 100, &tstamp, resolution);
 	spin_unlock_irqrestore(&timer->lock, flags);
 }
 
@@ -518,9 +518,13 @@ static int _snd_timer_stop(struct snd_timer_instance *timeri, int event)
 			spin_unlock_irqrestore(&slave_active_lock, flags);
 			return -EBUSY;
 		}
+		if (timeri->timer)
+			spin_lock(&timeri->timer->lock);
 		timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
 		list_del_init(&timeri->ack_list);
 		list_del_init(&timeri->active_list);
+		if (timeri->timer)
+			spin_unlock(&timeri->timer->lock);
 		spin_unlock_irqrestore(&slave_active_lock, flags);
 		goto __end;
 	}
@@ -1929,6 +1933,7 @@ static ssize_t snd_timer_user_read(struct file *file, char __user *buffer,
 {
 	struct snd_timer_user *tu;
 	long result = 0, unit;
+	int qhead;
 	int err = 0;
 
 	tu = file->private_data;
@@ -1940,7 +1945,7 @@ static ssize_t snd_timer_user_read(struct file *file, char __user *buffer,
 
 			if ((file->f_flags & O_NONBLOCK) != 0 || result > 0) {
 				err = -EAGAIN;
-				break;
+				goto _error;
 			}
 
 			set_current_state(TASK_INTERRUPTIBLE);
@@ -1955,42 +1960,37 @@ static ssize_t snd_timer_user_read(struct file *file, char __user *buffer,
 
 			if (tu->disconnected) {
 				err = -ENODEV;
-				break;
+				goto _error;
 			}
 			if (signal_pending(current)) {
 				err = -ERESTARTSYS;
-				break;
+				goto _error;
 			}
 		}
 
+		qhead = tu->qhead++;
+		tu->qhead %= tu->queue_size;
 		spin_unlock_irq(&tu->qlock);
-		if (err < 0)
-			goto _error;
 
 		if (tu->tread) {
-			if (copy_to_user(buffer, &tu->tqueue[tu->qhead++],
-					 sizeof(struct snd_timer_tread))) {
+			if (copy_to_user(buffer, &tu->tqueue[qhead],
+					 sizeof(struct snd_timer_tread)))
 				err = -EFAULT;
-				goto _error;
-			}
 		} else {
-			if (copy_to_user(buffer, &tu->queue[tu->qhead++],
-					 sizeof(struct snd_timer_read))) {
+			if (copy_to_user(buffer, &tu->queue[qhead],
+					 sizeof(struct snd_timer_read)))
 				err = -EFAULT;
-				goto _error;
-			}
 		}
 
-		tu->qhead %= tu->queue_size;
-
-		result += unit;
-		buffer += unit;
-
 		spin_lock_irq(&tu->qlock);
 		tu->qused--;
+		if (err < 0)
+			goto _error;
+		result += unit;
+		buffer += unit;
 	}
-	spin_unlock_irq(&tu->qlock);
  _error:
+	spin_unlock_irq(&tu->qlock);
 	return result > 0 ? result : err;
 }
 
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index bde3330..c0f8f61 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -87,7 +87,7 @@ MODULE_PARM_DESC(pcm_substreams, "PCM substreams # (1-128) for dummy driver.");
 module_param(fake_buffer, bool, 0444);
 MODULE_PARM_DESC(fake_buffer, "Fake buffer allocations.");
 #ifdef CONFIG_HIGH_RES_TIMERS
-module_param(hrtimer, bool, 0444);
+module_param(hrtimer, bool, 0644);
 MODULE_PARM_DESC(hrtimer, "Use hrtimer as the timer source.");
 #endif
 
@@ -109,6 +109,9 @@ struct dummy_timer_ops {
 	snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *);
 };
 
+#define get_dummy_ops(substream) \
+	(*(const struct dummy_timer_ops **)(substream)->runtime->private_data)
+
 struct dummy_model {
 	const char *name;
 	int (*playback_constraints)(struct snd_pcm_runtime *runtime);
@@ -137,7 +140,6 @@ struct snd_dummy {
 	int iobox;
 	struct snd_kcontrol *cd_volume_ctl;
 	struct snd_kcontrol *cd_switch_ctl;
-	const struct dummy_timer_ops *timer_ops;
 };
 
 /*
@@ -231,6 +233,8 @@ static struct dummy_model *dummy_models[] = {
  */
 
 struct dummy_systimer_pcm {
+	/* ops must be the first item */
+	const struct dummy_timer_ops *timer_ops;
 	spinlock_t lock;
 	struct timer_list timer;
 	unsigned long base_time;
@@ -366,6 +370,8 @@ static const struct dummy_timer_ops dummy_systimer_ops = {
  */
 
 struct dummy_hrtimer_pcm {
+	/* ops must be the first item */
+	const struct dummy_timer_ops *timer_ops;
 	ktime_t base_time;
 	ktime_t period_time;
 	atomic_t running;
@@ -492,31 +498,25 @@ static const struct dummy_timer_ops dummy_hrtimer_ops = {
 
 static int dummy_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 {
-	struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
-
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_RESUME:
-		return dummy->timer_ops->start(substream);
+		return get_dummy_ops(substream)->start(substream);
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
-		return dummy->timer_ops->stop(substream);
+		return get_dummy_ops(substream)->stop(substream);
 	}
 	return -EINVAL;
 }
 
 static int dummy_pcm_prepare(struct snd_pcm_substream *substream)
 {
-	struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
-
-	return dummy->timer_ops->prepare(substream);
+	return get_dummy_ops(substream)->prepare(substream);
 }
 
 static snd_pcm_uframes_t dummy_pcm_pointer(struct snd_pcm_substream *substream)
 {
-	struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
-
-	return dummy->timer_ops->pointer(substream);
+	return get_dummy_ops(substream)->pointer(substream);
 }
 
 static struct snd_pcm_hardware dummy_pcm_hardware = {
@@ -562,17 +562,19 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream)
 	struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
 	struct dummy_model *model = dummy->model;
 	struct snd_pcm_runtime *runtime = substream->runtime;
+	const struct dummy_timer_ops *ops;
 	int err;
 
-	dummy->timer_ops = &dummy_systimer_ops;
+	ops = &dummy_systimer_ops;
 #ifdef CONFIG_HIGH_RES_TIMERS
 	if (hrtimer)
-		dummy->timer_ops = &dummy_hrtimer_ops;
+		ops = &dummy_hrtimer_ops;
 #endif
 
-	err = dummy->timer_ops->create(substream);
+	err = ops->create(substream);
 	if (err < 0)
 		return err;
+	get_dummy_ops(substream) = ops;
 
 	runtime->hw = dummy->pcm_hw;
 	if (substream->pcm->device & 1) {
@@ -594,7 +596,7 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream)
 			err = model->capture_constraints(substream->runtime);
 	}
 	if (err < 0) {
-		dummy->timer_ops->free(substream);
+		get_dummy_ops(substream)->free(substream);
 		return err;
 	}
 	return 0;
@@ -602,8 +604,7 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream)
 
 static int dummy_pcm_close(struct snd_pcm_substream *substream)
 {
-	struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
-	dummy->timer_ops->free(substream);
+	get_dummy_ops(substream)->free(substream);
 	return 0;
 }
 
diff --git a/sound/firewire/digi00x/amdtp-dot.c b/sound/firewire/digi00x/amdtp-dot.c
index b02a5e8c..0ac92ab 100644
--- a/sound/firewire/digi00x/amdtp-dot.c
+++ b/sound/firewire/digi00x/amdtp-dot.c
@@ -63,7 +63,7 @@ struct amdtp_dot {
 #define BYTE_PER_SAMPLE (4)
 #define MAGIC_DOT_BYTE (2)
 #define MAGIC_BYTE_OFF(x) (((x) * BYTE_PER_SAMPLE) + MAGIC_DOT_BYTE)
-static const u8 dot_scrt(const u8 idx, const unsigned int off)
+static u8 dot_scrt(const u8 idx, const unsigned int off)
 {
 	/*
 	 * the length of the added pattern only depends on the lower nibble
diff --git a/sound/firewire/tascam/tascam-transaction.c b/sound/firewire/tascam/tascam-transaction.c
index 904ce03..040a96d 100644
--- a/sound/firewire/tascam/tascam-transaction.c
+++ b/sound/firewire/tascam/tascam-transaction.c
@@ -230,6 +230,7 @@ int snd_tscm_transaction_register(struct snd_tscm *tscm)
 	return err;
 error:
 	fw_core_remove_address_handler(&tscm->async_handler);
+	tscm->async_handler.callback_data = NULL;
 	return err;
 }
 
@@ -276,6 +277,9 @@ void snd_tscm_transaction_unregister(struct snd_tscm *tscm)
 	__be32 reg;
 	unsigned int i;
 
+	if (tscm->async_handler.callback_data == NULL)
+		return;
+
 	/* Turn off FireWire LED. */
 	reg = cpu_to_be32(0x0000008e);
 	snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
@@ -297,6 +301,8 @@ void snd_tscm_transaction_unregister(struct snd_tscm *tscm)
 			   &reg, sizeof(reg), 0);
 
 	fw_core_remove_address_handler(&tscm->async_handler);
+	tscm->async_handler.callback_data = NULL;
+
 	for (i = 0; i < TSCM_MIDI_OUT_PORT_MAX; i++)
 		snd_fw_async_midi_port_destroy(&tscm->out_ports[i]);
 }
diff --git a/sound/firewire/tascam/tascam.c b/sound/firewire/tascam/tascam.c
index ee0bc18..e281c33 100644
--- a/sound/firewire/tascam/tascam.c
+++ b/sound/firewire/tascam/tascam.c
@@ -21,7 +21,6 @@ static struct snd_tscm_spec model_specs[] = {
 		.pcm_playback_analog_channels = 8,
 		.midi_capture_ports = 4,
 		.midi_playback_ports = 4,
-		.is_controller = true,
 	},
 	{
 		.name = "FW-1082",
@@ -31,9 +30,16 @@ static struct snd_tscm_spec model_specs[] = {
 		.pcm_playback_analog_channels = 2,
 		.midi_capture_ports = 2,
 		.midi_playback_ports = 2,
-		.is_controller = true,
 	},
-	/* FW-1804 may be supported. */
+	{
+		.name = "FW-1804",
+		.has_adat = true,
+		.has_spdif = true,
+		.pcm_capture_analog_channels = 8,
+		.pcm_playback_analog_channels = 2,
+		.midi_capture_ports = 2,
+		.midi_playback_ports = 4,
+	},
 };
 
 static int identify_model(struct snd_tscm *tscm)
diff --git a/sound/firewire/tascam/tascam.h b/sound/firewire/tascam/tascam.h
index 2d028d2..30ab77e 100644
--- a/sound/firewire/tascam/tascam.h
+++ b/sound/firewire/tascam/tascam.h
@@ -39,7 +39,6 @@ struct snd_tscm_spec {
 	unsigned int pcm_playback_analog_channels;
 	unsigned int midi_capture_ports;
 	unsigned int midi_playback_ports;
-	bool is_controller;
 };
 
 #define TSCM_MIDI_IN_PORT_MAX	4
@@ -72,9 +71,6 @@ struct snd_tscm {
 	struct snd_fw_async_midi_port out_ports[TSCM_MIDI_OUT_PORT_MAX];
 	u8 running_status[TSCM_MIDI_OUT_PORT_MAX];
 	bool on_sysex[TSCM_MIDI_OUT_PORT_MAX];
-
-	/* For control messages. */
-	struct snd_firewire_tascam_status *status;
 };
 
 #define TSCM_ADDR_BASE			0xffff00000000ull
diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
index b5a17cb..8c48623 100644
--- a/sound/hda/hdac_controller.c
+++ b/sound/hda/hdac_controller.c
@@ -426,18 +426,22 @@ EXPORT_SYMBOL_GPL(snd_hdac_bus_stop_chip);
  * @bus: HD-audio core bus
  * @status: INTSTS register value
  * @ask: callback to be called for woken streams
+ *
+ * Returns the bits of handled streams, or zero if no stream is handled.
  */
-void snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status,
+int snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status,
 				    void (*ack)(struct hdac_bus *,
 						struct hdac_stream *))
 {
 	struct hdac_stream *azx_dev;
 	u8 sd_status;
+	int handled = 0;
 
 	list_for_each_entry(azx_dev, &bus->stream_list, list) {
 		if (status & azx_dev->sd_int_sta_mask) {
 			sd_status = snd_hdac_stream_readb(azx_dev, SD_STS);
 			snd_hdac_stream_writeb(azx_dev, SD_STS, SD_INT_MASK);
+			handled |= 1 << azx_dev->index;
 			if (!azx_dev->substream || !azx_dev->running ||
 			    !(sd_status & SD_INT_COMPLETE))
 				continue;
@@ -445,6 +449,7 @@ void snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status,
 				ack(bus, azx_dev);
 		}
 	}
+	return handled;
 }
 EXPORT_SYMBOL_GPL(snd_hdac_bus_handle_stream_irq);
 
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
index 37cf9ce..27de801 100644
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -930,6 +930,8 @@ irqreturn_t azx_interrupt(int irq, void *dev_id)
 	struct azx *chip = dev_id;
 	struct hdac_bus *bus = azx_bus(chip);
 	u32 status;
+	bool active, handled = false;
+	int repeat = 0; /* count for avoiding endless loop */
 
 #ifdef CONFIG_PM
 	if (azx_has_pm_runtime(chip))
@@ -939,33 +941,36 @@ irqreturn_t azx_interrupt(int irq, void *dev_id)
 
 	spin_lock(&bus->reg_lock);
 
-	if (chip->disabled) {
-		spin_unlock(&bus->reg_lock);
-		return IRQ_NONE;
-	}
-
-	status = azx_readl(chip, INTSTS);
-	if (status == 0 || status == 0xffffffff) {
-		spin_unlock(&bus->reg_lock);
-		return IRQ_NONE;
-	}
+	if (chip->disabled)
+		goto unlock;
 
-	snd_hdac_bus_handle_stream_irq(bus, status, stream_update);
+	do {
+		status = azx_readl(chip, INTSTS);
+		if (status == 0 || status == 0xffffffff)
+			break;
 
-	/* clear rirb int */
-	status = azx_readb(chip, RIRBSTS);
-	if (status & RIRB_INT_MASK) {
-		if (status & RIRB_INT_RESPONSE) {
-			if (chip->driver_caps & AZX_DCAPS_CTX_WORKAROUND)
-				udelay(80);
-			snd_hdac_bus_update_rirb(bus);
+		handled = true;
+		active = false;
+		if (snd_hdac_bus_handle_stream_irq(bus, status, stream_update))
+			active = true;
+
+		/* clear rirb int */
+		status = azx_readb(chip, RIRBSTS);
+		if (status & RIRB_INT_MASK) {
+			active = true;
+			if (status & RIRB_INT_RESPONSE) {
+				if (chip->driver_caps & AZX_DCAPS_CTX_WORKAROUND)
+					udelay(80);
+				snd_hdac_bus_update_rirb(bus);
+			}
+			azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
 		}
-		azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
-	}
+	} while (active && ++repeat < 10);
 
+ unlock:
 	spin_unlock(&bus->reg_lock);
 
-	return IRQ_HANDLED;
+	return IRQ_RETVAL(handled);
 }
 EXPORT_SYMBOL_GPL(azx_interrupt);
 
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 30c8efe..7ca5b89 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -4028,9 +4028,9 @@ static void pin_power_callback(struct hda_codec *codec,
 			       struct hda_jack_callback *jack,
 			       bool on)
 {
-	if (jack && jack->tbl->nid)
+	if (jack && jack->nid)
 		sync_power_state_change(codec,
-					set_pin_power_jack(codec, jack->tbl->nid, on));
+					set_pin_power_jack(codec, jack->nid, on));
 }
 
 /* callback only doing power up -- called at first */
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 4045dca..e5240cb 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -363,7 +363,10 @@ enum {
 					((pci)->device == 0x0d0c) || \
 					((pci)->device == 0x160c))
 
-#define IS_BROXTON(pci)	((pci)->device == 0x5a98)
+#define IS_SKL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa170)
+#define IS_SKL_LP(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9d70)
+#define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
+#define IS_SKL_PLUS(pci) (IS_SKL(pci) || IS_SKL_LP(pci) || IS_BXT(pci))
 
 static char *driver_short_names[] = {
 	[AZX_DRIVER_ICH] = "HDA Intel",
@@ -540,13 +543,13 @@ static void hda_intel_init_chip(struct azx *chip, bool full_reset)
 
 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
 		snd_hdac_set_codec_wakeup(bus, true);
-	if (IS_BROXTON(pci)) {
+	if (IS_SKL_PLUS(pci)) {
 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
 	}
 	azx_init_chip(chip, full_reset);
-	if (IS_BROXTON(pci)) {
+	if (IS_SKL_PLUS(pci)) {
 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
@@ -555,7 +558,7 @@ static void hda_intel_init_chip(struct azx *chip, bool full_reset)
 		snd_hdac_set_codec_wakeup(bus, false);
 
 	/* reduce dma latency to avoid noise */
-	if (IS_BROXTON(pci))
+	if (IS_BXT(pci))
 		bxt_reduce_dma_latency(chip);
 }
 
@@ -977,11 +980,6 @@ static int azx_resume(struct device *dev)
 /* put codec down to D3 at hibernation for Intel SKL+;
  * otherwise BIOS may still access the codec and screw up the driver
  */
-#define IS_SKL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa170)
-#define IS_SKL_LP(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9d70)
-#define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
-#define IS_SKL_PLUS(pci) (IS_SKL(pci) || IS_SKL_LP(pci) || IS_BXT(pci))
-
 static int azx_freeze_noirq(struct device *dev)
 {
 	struct pci_dev *pci = to_pci_dev(dev);
@@ -2168,10 +2166,10 @@ static void azx_remove(struct pci_dev *pci)
 	struct hda_intel *hda;
 
 	if (card) {
-		/* flush the pending probing work */
+		/* cancel the pending probing work */
 		chip = card->private_data;
 		hda = container_of(chip, struct hda_intel, chip);
-		flush_work(&hda->probe_work);
+		cancel_work_sync(&hda->probe_work);
 
 		snd_card_free(card);
 	}
diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c
index c945e25..a33234e 100644
--- a/sound/pci/hda/hda_jack.c
+++ b/sound/pci/hda/hda_jack.c
@@ -259,7 +259,7 @@ snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid,
 		if (!callback)
 			return ERR_PTR(-ENOMEM);
 		callback->func = func;
-		callback->tbl = jack;
+		callback->nid = jack->nid;
 		callback->next = jack->callback;
 		jack->callback = callback;
 	}
diff --git a/sound/pci/hda/hda_jack.h b/sound/pci/hda/hda_jack.h
index 858708a..e9814c0 100644
--- a/sound/pci/hda/hda_jack.h
+++ b/sound/pci/hda/hda_jack.h
@@ -21,7 +21,7 @@ struct hda_jack_callback;
 typedef void (*hda_jack_callback_fn) (struct hda_codec *, struct hda_jack_callback *);
 
 struct hda_jack_callback {
-	struct hda_jack_tbl *tbl;
+	hda_nid_t nid;
 	hda_jack_callback_fn func;
 	unsigned int private_data;	/* arbitrary data */
 	struct hda_jack_callback *next;
diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 4ef2259..9ceb2bc 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -4427,13 +4427,16 @@ static void ca0132_process_dsp_response(struct hda_codec *codec,
 static void hp_callback(struct hda_codec *codec, struct hda_jack_callback *cb)
 {
 	struct ca0132_spec *spec = codec->spec;
+	struct hda_jack_tbl *tbl;
 
 	/* Delay enabling the HP amp, to let the mic-detection
 	 * state machine run.
 	 */
 	cancel_delayed_work_sync(&spec->unsol_hp_work);
 	schedule_delayed_work(&spec->unsol_hp_work, msecs_to_jiffies(500));
-	cb->tbl->block_report = 1;
+	tbl = snd_hda_jack_tbl_get(codec, cb->nid);
+	if (tbl)
+		tbl->block_report = 1;
 }
 
 static void amic_callback(struct hda_codec *codec, struct hda_jack_callback *cb)
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 1f52b55..8ee78db 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -448,7 +448,8 @@ static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
 	eld = &per_pin->sink_eld;
 
 	mutex_lock(&per_pin->lock);
-	if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data)) {
+	if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) ||
+	    eld->eld_size > ELD_MAX_SIZE) {
 		mutex_unlock(&per_pin->lock);
 		snd_BUG();
 		return -EINVAL;
@@ -1193,7 +1194,7 @@ static void check_presence_and_report(struct hda_codec *codec, hda_nid_t nid)
 static void jack_callback(struct hda_codec *codec,
 			  struct hda_jack_callback *jack)
 {
-	check_presence_and_report(codec, jack->tbl->nid);
+	check_presence_and_report(codec, jack->nid);
 }
 
 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 21992fb..1f357cd 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -282,7 +282,7 @@ static void alc_update_knob_master(struct hda_codec *codec,
 	uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
 	if (!uctl)
 		return;
-	val = snd_hda_codec_read(codec, jack->tbl->nid, 0,
+	val = snd_hda_codec_read(codec, jack->nid, 0,
 				 AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
 	val &= HDA_AMP_VOLMASK;
 	uctl->value.integer.value[0] = val;
@@ -1787,7 +1787,6 @@ enum {
 	ALC882_FIXUP_NO_PRIMARY_HP,
 	ALC887_FIXUP_ASUS_BASS,
 	ALC887_FIXUP_BASS_CHMAP,
-	ALC882_FIXUP_DISABLE_AAMIX,
 };
 
 static void alc889_fixup_coef(struct hda_codec *codec,
@@ -1949,8 +1948,6 @@ static void alc882_fixup_no_primary_hp(struct hda_codec *codec,
 
 static void alc_fixup_bass_chmap(struct hda_codec *codec,
 				 const struct hda_fixup *fix, int action);
-static void alc_fixup_disable_aamix(struct hda_codec *codec,
-				    const struct hda_fixup *fix, int action);
 
 static const struct hda_fixup alc882_fixups[] = {
 	[ALC882_FIXUP_ABIT_AW9D_MAX] = {
@@ -2188,10 +2185,6 @@ static const struct hda_fixup alc882_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc_fixup_bass_chmap,
 	},
-	[ALC882_FIXUP_DISABLE_AAMIX] = {
-		.type = HDA_FIXUP_FUNC,
-		.v.func = alc_fixup_disable_aamix,
-	},
 };
 
 static const struct snd_pci_quirk alc882_fixup_tbl[] = {
@@ -2230,6 +2223,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x104d, 0x9047, "Sony Vaio TT", ALC889_FIXUP_VAIO_TT),
 	SND_PCI_QUIRK(0x104d, 0x905a, "Sony Vaio Z", ALC882_FIXUP_NO_PRIMARY_HP),
 	SND_PCI_QUIRK(0x104d, 0x9043, "Sony Vaio VGC-LN51JGB", ALC882_FIXUP_NO_PRIMARY_HP),
+	SND_PCI_QUIRK(0x104d, 0x9044, "Sony VAIO AiO", ALC882_FIXUP_NO_PRIMARY_HP),
 
 	/* All Apple entries are in codec SSIDs */
 	SND_PCI_QUIRK(0x106b, 0x00a0, "MacBookPro 3,1", ALC889_FIXUP_MBP_VREF),
@@ -2259,7 +2253,6 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1462, 0x7350, "MSI-7350", ALC889_FIXUP_CD),
 	SND_PCI_QUIRK_VENDOR(0x1462, "MSI", ALC882_FIXUP_GPIO3),
 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte EP45-DS3/Z87X-UD3H", ALC889_FIXUP_FRONT_HP_NO_PRESENCE),
-	SND_PCI_QUIRK(0x1458, 0xa182, "Gigabyte Z170X-UD3", ALC882_FIXUP_DISABLE_AAMIX),
 	SND_PCI_QUIRK(0x147b, 0x107a, "Abit AW9D-MAX", ALC882_FIXUP_ABIT_AW9D_MAX),
 	SND_PCI_QUIRK_VENDOR(0x1558, "Clevo laptop", ALC882_FIXUP_EAPD),
 	SND_PCI_QUIRK(0x161f, 0x2054, "Medion laptop", ALC883_FIXUP_EAPD),
@@ -3808,6 +3801,10 @@ static void alc_headset_mode_mic_in(struct hda_codec *codec, hda_nid_t hp_pin,
 
 static void alc_headset_mode_default(struct hda_codec *codec)
 {
+	static struct coef_fw coef0225[] = {
+		UPDATE_COEF(0x45, 0x3f<<10, 0x34<<10),
+		{}
+	};
 	static struct coef_fw coef0255[] = {
 		WRITE_COEF(0x45, 0xc089),
 		WRITE_COEF(0x45, 0xc489),
@@ -3849,6 +3846,9 @@ static void alc_headset_mode_default(struct hda_codec *codec)
 	};
 
 	switch (codec->core.vendor_id) {
+	case 0x10ec0225:
+		alc_process_coef_fw(codec, coef0225);
+		break;
 	case 0x10ec0255:
 	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0255);
@@ -4756,6 +4756,9 @@ enum {
 	ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE,
 	ALC293_FIXUP_LENOVO_SPK_NOISE,
 	ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY,
+	ALC255_FIXUP_DELL_SPK_NOISE,
+	ALC225_FIXUP_DELL1_MIC_NO_PRESENCE,
+	ALC280_FIXUP_HP_HEADSET_MIC,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -5375,6 +5378,29 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc233_fixup_lenovo_line2_mic_hotkey,
 	},
+	[ALC255_FIXUP_DELL_SPK_NOISE] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc_fixup_disable_aamix,
+		.chained = true,
+		.chain_id = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE
+	},
+	[ALC225_FIXUP_DELL1_MIC_NO_PRESENCE] = {
+		.type = HDA_FIXUP_VERBS,
+		.v.verbs = (const struct hda_verb[]) {
+			/* Disable pass-through path for FRONT 14h */
+			{ 0x20, AC_VERB_SET_COEF_INDEX, 0x36 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0x57d7 },
+			{}
+		},
+		.chained = true,
+		.chain_id = ALC269_FIXUP_DELL1_MIC_NO_PRESENCE
+	},
+	[ALC280_FIXUP_HP_HEADSET_MIC] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc_fixup_disable_aamix,
+		.chained = true,
+		.chain_id = ALC269_FIXUP_HEADSET_MIC,
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -5417,6 +5443,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1028, 0x06df, "Dell", ALC293_FIXUP_DISABLE_AAMIX_MULTIJACK),
 	SND_PCI_QUIRK(0x1028, 0x06e0, "Dell", ALC293_FIXUP_DISABLE_AAMIX_MULTIJACK),
 	SND_PCI_QUIRK(0x1028, 0x0704, "Dell XPS 13", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE),
+	SND_PCI_QUIRK(0x1028, 0x0725, "Dell Inspiron 3162", ALC255_FIXUP_DELL_SPK_NOISE),
 	SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),
@@ -5477,6 +5504,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x2335, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
 	SND_PCI_QUIRK(0x103c, 0x2336, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
 	SND_PCI_QUIRK(0x103c, 0x2337, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+	SND_PCI_QUIRK(0x103c, 0x221c, "HP EliteBook 755 G2", ALC280_FIXUP_HP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1043, 0x103f, "ASUS TX300", ALC282_FIXUP_ASUS_TX300),
 	SND_PCI_QUIRK(0x1043, 0x106d, "Asus K53BE", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x1043, 0x115d, "Asus 1015E", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
@@ -5645,10 +5673,10 @@ static const struct hda_model_fixup alc269_fixup_models[] = {
 	{0x21, 0x03211020}
 
 static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
-	SND_HDA_PIN_QUIRK(0x10ec0225, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE,
+	SND_HDA_PIN_QUIRK(0x10ec0225, 0x1028, "Dell", ALC225_FIXUP_DELL1_MIC_NO_PRESENCE,
 		ALC225_STANDARD_PINS,
 		{0x14, 0x901701a0}),
-	SND_HDA_PIN_QUIRK(0x10ec0225, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE,
+	SND_HDA_PIN_QUIRK(0x10ec0225, 0x1028, "Dell", ALC225_FIXUP_DELL1_MIC_NO_PRESENCE,
 		ALC225_STANDARD_PINS,
 		{0x14, 0x901701b0}),
 	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL2_MIC_NO_PRESENCE,
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 2c7c5eb..37b70f8 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -493,9 +493,9 @@ static void jack_update_power(struct hda_codec *codec,
 	if (!spec->num_pwrs)
 		return;
 
-	if (jack && jack->tbl->nid) {
-		stac_toggle_power_map(codec, jack->tbl->nid,
-				      snd_hda_jack_detect(codec, jack->tbl->nid),
+	if (jack && jack->nid) {
+		stac_toggle_power_map(codec, jack->nid,
+				      snd_hda_jack_detect(codec, jack->nid),
 				      true);
 		return;
 	}
diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index 3191e0a..d1fb035 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -635,6 +635,7 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
 					    SNDRV_PCM_HW_PARAM_PERIODS);
 	if (ret < 0) {
 		dev_err(prtd->platform->dev, "set integer constraint failed\n");
+		kfree(adata);
 		return ret;
 	}
 
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index 33143fe..9178531 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -1929,6 +1929,25 @@ static struct {
 	{ 1000000, 13500000, 0,  1 },
 };
 
+static const unsigned int pseudo_fref_max[ARIZONA_FLL_MAX_FRATIO] = {
+	13500000,
+	 6144000,
+	 6144000,
+	 3072000,
+	 3072000,
+	 2822400,
+	 2822400,
+	 1536000,
+	 1536000,
+	 1536000,
+	 1536000,
+	 1536000,
+	 1536000,
+	 1536000,
+	 1536000,
+	  768000,
+};
+
 static struct {
 	unsigned int min;
 	unsigned int max;
@@ -2042,16 +2061,32 @@ static int arizona_calc_fratio(struct arizona_fll *fll,
 	/* Adjust FRATIO/refdiv to avoid integer mode if possible */
 	refdiv = cfg->refdiv;
 
+	arizona_fll_dbg(fll, "pseudo: initial ratio=%u fref=%u refdiv=%u\n",
+			init_ratio, Fref, refdiv);
+
 	while (div <= ARIZONA_FLL_MAX_REFDIV) {
 		for (ratio = init_ratio; ratio <= ARIZONA_FLL_MAX_FRATIO;
 		     ratio++) {
 			if ((ARIZONA_FLL_VCO_CORNER / 2) /
-			    (fll->vco_mult * ratio) < Fref)
+			    (fll->vco_mult * ratio) < Fref) {
+				arizona_fll_dbg(fll, "pseudo: hit VCO corner\n");
 				break;
+			}
+
+			if (Fref > pseudo_fref_max[ratio - 1]) {
+				arizona_fll_dbg(fll,
+					"pseudo: exceeded max fref(%u) for ratio=%u\n",
+					pseudo_fref_max[ratio - 1],
+					ratio);
+				break;
+			}
 
 			if (target % (ratio * Fref)) {
 				cfg->refdiv = refdiv;
 				cfg->fratio = ratio - 1;
+				arizona_fll_dbg(fll,
+					"pseudo: found fref=%u refdiv=%d(%d) ratio=%d\n",
+					Fref, refdiv, div, ratio);
 				return ratio;
 			}
 		}
@@ -2060,6 +2095,9 @@ static int arizona_calc_fratio(struct arizona_fll *fll,
 			if (target % (ratio * Fref)) {
 				cfg->refdiv = refdiv;
 				cfg->fratio = ratio - 1;
+				arizona_fll_dbg(fll,
+					"pseudo: found fref=%u refdiv=%d(%d) ratio=%d\n",
+					Fref, refdiv, div, ratio);
 				return ratio;
 			}
 		}
@@ -2068,6 +2106,9 @@ static int arizona_calc_fratio(struct arizona_fll *fll,
 		Fref /= 2;
 		refdiv++;
 		init_ratio = arizona_find_fratio(Fref, NULL);
+		arizona_fll_dbg(fll,
+				"pseudo: change fref=%u refdiv=%d(%d) ratio=%u\n",
+				Fref, refdiv, div, init_ratio);
 	}
 
 	arizona_fll_warn(fll, "Falling back to integer mode operation\n");
diff --git a/sound/soc/codecs/rt286.c b/sound/soc/codecs/rt286.c
index bc08f0c..1bd3164 100644
--- a/sound/soc/codecs/rt286.c
+++ b/sound/soc/codecs/rt286.c
@@ -266,6 +266,8 @@ static int rt286_jack_detect(struct rt286_priv *rt286, bool *hp, bool *mic)
 		} else {
 			*mic = false;
 			regmap_write(rt286->regmap, RT286_SET_MIC1, 0x20);
+			regmap_update_bits(rt286->regmap,
+				RT286_CBJ_CTRL1, 0x0400, 0x0000);
 		}
 	} else {
 		regmap_read(rt286->regmap, RT286_GET_HP_SENSE, &buf);
@@ -470,24 +472,6 @@ static int rt286_set_dmic1_event(struct snd_soc_dapm_widget *w,
 	return 0;
 }
 
-static int rt286_vref_event(struct snd_soc_dapm_widget *w,
-			     struct snd_kcontrol *kcontrol, int event)
-{
-	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
-
-	switch (event) {
-	case SND_SOC_DAPM_PRE_PMU:
-		snd_soc_update_bits(codec,
-			RT286_CBJ_CTRL1, 0x0400, 0x0000);
-		mdelay(50);
-		break;
-	default:
-		return 0;
-	}
-
-	return 0;
-}
-
 static int rt286_ldo2_event(struct snd_soc_dapm_widget *w,
 			     struct snd_kcontrol *kcontrol, int event)
 {
@@ -536,7 +520,7 @@ static const struct snd_soc_dapm_widget rt286_dapm_widgets[] = {
 	SND_SOC_DAPM_SUPPLY_S("HV", 1, RT286_POWER_CTRL1,
 		12, 1, NULL, 0),
 	SND_SOC_DAPM_SUPPLY("VREF", RT286_POWER_CTRL1,
-		0, 1, rt286_vref_event, SND_SOC_DAPM_PRE_PMU),
+		0, 1, NULL, 0),
 	SND_SOC_DAPM_SUPPLY_S("LDO1", 1, RT286_POWER_CTRL2,
 		2, 0, NULL, 0),
 	SND_SOC_DAPM_SUPPLY_S("LDO2", 2, RT286_POWER_CTRL1,
@@ -911,8 +895,6 @@ static int rt286_set_bias_level(struct snd_soc_codec *codec,
 	case SND_SOC_BIAS_ON:
 		mdelay(10);
 		snd_soc_update_bits(codec,
-			RT286_CBJ_CTRL1, 0x0400, 0x0400);
-		snd_soc_update_bits(codec,
 			RT286_DC_GAIN, 0x200, 0x0);
 
 		break;
@@ -920,8 +902,6 @@ static int rt286_set_bias_level(struct snd_soc_codec *codec,
 	case SND_SOC_BIAS_STANDBY:
 		snd_soc_write(codec,
 			RT286_SET_AUDIO_POWER, AC_PWRST_D3);
-		snd_soc_update_bits(codec,
-			RT286_CBJ_CTRL1, 0x0400, 0x0000);
 		break;
 
 	default:
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index c61d38b..93e8c90 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -776,7 +776,7 @@ static const struct snd_kcontrol_new rt5645_snd_controls[] = {
 
 	/* IN1/IN2 Control */
 	SOC_SINGLE_TLV("IN1 Boost", RT5645_IN1_CTRL1,
-		RT5645_BST_SFT1, 8, 0, bst_tlv),
+		RT5645_BST_SFT1, 12, 0, bst_tlv),
 	SOC_SINGLE_TLV("IN2 Boost", RT5645_IN2_CTRL,
 		RT5645_BST_SFT2, 8, 0, bst_tlv),
 
diff --git a/sound/soc/codecs/rt5659.c b/sound/soc/codecs/rt5659.c
index 820d8fa..fb8ea05 100644
--- a/sound/soc/codecs/rt5659.c
+++ b/sound/soc/codecs/rt5659.c
@@ -3985,7 +3985,6 @@ static int rt5659_i2c_probe(struct i2c_client *i2c,
 	if (rt5659 == NULL)
 		return -ENOMEM;
 
-	rt5659->i2c = i2c;
 	i2c_set_clientdata(i2c, rt5659);
 
 	if (pdata)
@@ -4157,24 +4156,17 @@ static int rt5659_i2c_probe(struct i2c_client *i2c,
 
 	INIT_DELAYED_WORK(&rt5659->jack_detect_work, rt5659_jack_detect_work);
 
-	if (rt5659->i2c->irq) {
-		ret = request_threaded_irq(rt5659->i2c->irq, NULL, rt5659_irq,
-			IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING
+	if (i2c->irq) {
+		ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
+			rt5659_irq, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING
 			| IRQF_ONESHOT, "rt5659", rt5659);
 		if (ret)
 			dev_err(&i2c->dev, "Failed to reguest IRQ: %d\n", ret);
 
 	}
 
-	ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_rt5659,
+	return snd_soc_register_codec(&i2c->dev, &soc_codec_dev_rt5659,
 			rt5659_dai, ARRAY_SIZE(rt5659_dai));
-
-	if (ret) {
-		if (rt5659->i2c->irq)
-			free_irq(rt5659->i2c->irq, rt5659);
-	}
-
-	return 0;
 }
 
 static int rt5659_i2c_remove(struct i2c_client *i2c)
@@ -4191,24 +4183,29 @@ void rt5659_i2c_shutdown(struct i2c_client *client)
 	regmap_write(rt5659->regmap, RT5659_RESET, 0);
 }
 
+#ifdef CONFIG_OF
 static const struct of_device_id rt5659_of_match[] = {
 	{ .compatible = "realtek,rt5658", },
 	{ .compatible = "realtek,rt5659", },
-	{},
+	{ },
 };
+MODULE_DEVICE_TABLE(of, rt5659_of_match);
+#endif
 
+#ifdef CONFIG_ACPI
 static struct acpi_device_id rt5659_acpi_match[] = {
-		{ "10EC5658", 0},
-		{ "10EC5659", 0},
-		{ },
+	{ "10EC5658", 0, },
+	{ "10EC5659", 0, },
+	{ },
 };
 MODULE_DEVICE_TABLE(acpi, rt5659_acpi_match);
+#endif
 
 struct i2c_driver rt5659_i2c_driver = {
 	.driver = {
 		.name = "rt5659",
 		.owner = THIS_MODULE,
-		.of_match_table = rt5659_of_match,
+		.of_match_table = of_match_ptr(rt5659_of_match),
 		.acpi_match_table = ACPI_PTR(rt5659_acpi_match),
 	},
 	.probe = rt5659_i2c_probe,
diff --git a/sound/soc/codecs/rt5659.h b/sound/soc/codecs/rt5659.h
index 8f07ee9..d31c9e5 100644
--- a/sound/soc/codecs/rt5659.h
+++ b/sound/soc/codecs/rt5659.h
@@ -1792,7 +1792,6 @@ struct rt5659_priv {
 	struct snd_soc_codec *codec;
 	struct rt5659_platform_data pdata;
 	struct regmap *regmap;
-	struct i2c_client *i2c;
 	struct gpio_desc *gpiod_ldo1_en;
 	struct gpio_desc *gpiod_reset;
 	struct snd_soc_jack *hs_jack;
diff --git a/sound/soc/codecs/sigmadsp-i2c.c b/sound/soc/codecs/sigmadsp-i2c.c
index 21ca3a5..d374c18 100644
--- a/sound/soc/codecs/sigmadsp-i2c.c
+++ b/sound/soc/codecs/sigmadsp-i2c.c
@@ -31,7 +31,10 @@ static int sigmadsp_write_i2c(void *control_data,
 
 	kfree(buf);
 
-	return ret;
+	if (ret < 0)
+		return ret;
+
+	return 0;
 }
 
 static int sigmadsp_read_i2c(void *control_data,
diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index 6088d30..97c0f1e 100644
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -2382,6 +2382,7 @@ error:
 
 static int wm5110_remove(struct platform_device *pdev)
 {
+	snd_soc_unregister_platform(&pdev->dev);
 	snd_soc_unregister_codec(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 
diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index ff23772..d7f444f 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -240,13 +240,13 @@ SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
 	7, 1, 1),
 
-SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
+SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
 	       WM8960_INBMIX1, 4, 7, 0, lineinboost_tlv),
-SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
+SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
 	       WM8960_INBMIX1, 1, 7, 0, lineinboost_tlv),
-SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
+SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
 	       WM8960_INBMIX2, 4, 7, 0, lineinboost_tlv),
-SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
+SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
 	       WM8960_INBMIX2, 1, 7, 0, lineinboost_tlv),
 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT1 Volume",
 		WM8960_RINPATH, 4, 3, 0, micboost_tlv),
@@ -643,29 +643,31 @@ static int wm8960_configure_clocking(struct snd_soc_codec *codec)
 		return -EINVAL;
 	}
 
-	/* check if the sysclk frequency is available. */
-	for (i = 0; i < ARRAY_SIZE(sysclk_divs); ++i) {
-		if (sysclk_divs[i] == -1)
-			continue;
-		sysclk = freq_out / sysclk_divs[i];
-		for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) {
-			if (sysclk == dac_divs[j] * lrclk) {
+	if (wm8960->clk_id != WM8960_SYSCLK_PLL) {
+		/* check if the sysclk frequency is available. */
+		for (i = 0; i < ARRAY_SIZE(sysclk_divs); ++i) {
+			if (sysclk_divs[i] == -1)
+				continue;
+			sysclk = freq_out / sysclk_divs[i];
+			for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) {
+				if (sysclk != dac_divs[j] * lrclk)
+					continue;
 				for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k)
 					if (sysclk == bclk * bclk_divs[k] / 10)
 						break;
 				if (k != ARRAY_SIZE(bclk_divs))
 					break;
 			}
+			if (j != ARRAY_SIZE(dac_divs))
+				break;
 		}
-		if (j != ARRAY_SIZE(dac_divs))
-			break;
-	}
 
-	if (i != ARRAY_SIZE(sysclk_divs)) {
-		goto configure_clock;
-	} else if (wm8960->clk_id != WM8960_SYSCLK_AUTO) {
-		dev_err(codec->dev, "failed to configure clock\n");
-		return -EINVAL;
+		if (i != ARRAY_SIZE(sysclk_divs)) {
+			goto configure_clock;
+		} else if (wm8960->clk_id != WM8960_SYSCLK_AUTO) {
+			dev_err(codec->dev, "failed to configure clock\n");
+			return -EINVAL;
+		}
 	}
 	/* get a available pll out frequency and set pll */
 	for (i = 0; i < ARRAY_SIZE(sysclk_divs); ++i) {
diff --git a/sound/soc/dwc/designware_i2s.c b/sound/soc/dwc/designware_i2s.c
index ce664c2..bff258d 100644
--- a/sound/soc/dwc/designware_i2s.c
+++ b/sound/soc/dwc/designware_i2s.c
@@ -645,6 +645,8 @@ static int dw_i2s_probe(struct platform_device *pdev)
 
 	dev->dev = &pdev->dev;
 
+	dev->i2s_reg_comp1 = I2S_COMP_PARAM_1;
+	dev->i2s_reg_comp2 = I2S_COMP_PARAM_2;
 	if (pdata) {
 		dev->capability = pdata->cap;
 		clk_id = NULL;
@@ -652,9 +654,6 @@ static int dw_i2s_probe(struct platform_device *pdev)
 		if (dev->quirks & DW_I2S_QUIRK_COMP_REG_OFFSET) {
 			dev->i2s_reg_comp1 = pdata->i2s_reg_comp1;
 			dev->i2s_reg_comp2 = pdata->i2s_reg_comp2;
-		} else {
-			dev->i2s_reg_comp1 = I2S_COMP_PARAM_1;
-			dev->i2s_reg_comp2 = I2S_COMP_PARAM_2;
 		}
 		ret = dw_configure_dai_by_pd(dev, dw_i2s_dai, res, pdata);
 	} else {
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 40dfd8a..ed8de10 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -112,20 +112,6 @@ struct fsl_ssi_rxtx_reg_val {
 	struct fsl_ssi_reg_val tx;
 };
 
-static const struct reg_default fsl_ssi_reg_defaults[] = {
-	{CCSR_SSI_SCR,     0x00000000},
-	{CCSR_SSI_SIER,    0x00003003},
-	{CCSR_SSI_STCR,    0x00000200},
-	{CCSR_SSI_SRCR,    0x00000200},
-	{CCSR_SSI_STCCR,   0x00040000},
-	{CCSR_SSI_SRCCR,   0x00040000},
-	{CCSR_SSI_SACNT,   0x00000000},
-	{CCSR_SSI_STMSK,   0x00000000},
-	{CCSR_SSI_SRMSK,   0x00000000},
-	{CCSR_SSI_SACCEN,  0x00000000},
-	{CCSR_SSI_SACCDIS, 0x00000000},
-};
-
 static bool fsl_ssi_readable_reg(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
@@ -190,8 +176,7 @@ static const struct regmap_config fsl_ssi_regconfig = {
 	.val_bits = 32,
 	.reg_stride = 4,
 	.val_format_endian = REGMAP_ENDIAN_NATIVE,
-	.reg_defaults = fsl_ssi_reg_defaults,
-	.num_reg_defaults = ARRAY_SIZE(fsl_ssi_reg_defaults),
+	.num_reg_defaults_raw = CCSR_SSI_SACCDIS / sizeof(uint32_t) + 1,
 	.readable_reg = fsl_ssi_readable_reg,
 	.volatile_reg = fsl_ssi_volatile_reg,
 	.precious_reg = fsl_ssi_precious_reg,
@@ -201,6 +186,7 @@ static const struct regmap_config fsl_ssi_regconfig = {
 
 struct fsl_ssi_soc_data {
 	bool imx;
+	bool imx21regs; /* imx21-class SSI - no SACC{ST,EN,DIS} regs */
 	bool offline_config;
 	u32 sisr_write_mask;
 };
@@ -303,6 +289,7 @@ static struct fsl_ssi_soc_data fsl_ssi_mpc8610 = {
 
 static struct fsl_ssi_soc_data fsl_ssi_imx21 = {
 	.imx = true,
+	.imx21regs = true,
 	.offline_config = true,
 	.sisr_write_mask = 0,
 };
@@ -586,8 +573,12 @@ static void fsl_ssi_setup_ac97(struct fsl_ssi_private *ssi_private)
 	 */
 	regmap_write(regs, CCSR_SSI_SACNT,
 			CCSR_SSI_SACNT_AC97EN | CCSR_SSI_SACNT_FV);
-	regmap_write(regs, CCSR_SSI_SACCDIS, 0xff);
-	regmap_write(regs, CCSR_SSI_SACCEN, 0x300);
+
+	/* no SACC{ST,EN,DIS} regs on imx21-class SSI */
+	if (!ssi_private->soc->imx21regs) {
+		regmap_write(regs, CCSR_SSI_SACCDIS, 0xff);
+		regmap_write(regs, CCSR_SSI_SACCEN, 0x300);
+	}
 
 	/*
 	 * Enable SSI, Transmit and Receive. AC97 has to communicate with the
@@ -1397,6 +1388,7 @@ static int fsl_ssi_probe(struct platform_device *pdev)
 	struct resource *res;
 	void __iomem *iomem;
 	char name[64];
+	struct regmap_config regconfig = fsl_ssi_regconfig;
 
 	of_id = of_match_device(fsl_ssi_ids, &pdev->dev);
 	if (!of_id || !of_id->data)
@@ -1444,15 +1436,25 @@ static int fsl_ssi_probe(struct platform_device *pdev)
 		return PTR_ERR(iomem);
 	ssi_private->ssi_phys = res->start;
 
+	if (ssi_private->soc->imx21regs) {
+		/*
+		 * According to datasheet imx21-class SSI
+		 * don't have SACC{ST,EN,DIS} regs.
+		 */
+		regconfig.max_register = CCSR_SSI_SRMSK;
+		regconfig.num_reg_defaults_raw =
+			CCSR_SSI_SRMSK / sizeof(uint32_t) + 1;
+	}
+
 	ret = of_property_match_string(np, "clock-names", "ipg");
 	if (ret < 0) {
 		ssi_private->has_ipg_clk_name = false;
 		ssi_private->regs = devm_regmap_init_mmio(&pdev->dev, iomem,
-			&fsl_ssi_regconfig);
+			&regconfig);
 	} else {
 		ssi_private->has_ipg_clk_name = true;
 		ssi_private->regs = devm_regmap_init_mmio_clk(&pdev->dev,
-			"ipg", iomem, &fsl_ssi_regconfig);
+			"ipg", iomem, &regconfig);
 	}
 	if (IS_ERR(ssi_private->regs)) {
 		dev_err(&pdev->dev, "Failed to init register map\n");
diff --git a/sound/soc/fsl/imx-spdif.c b/sound/soc/fsl/imx-spdif.c
index a407e83..fb896b2 100644
--- a/sound/soc/fsl/imx-spdif.c
+++ b/sound/soc/fsl/imx-spdif.c
@@ -72,8 +72,6 @@ static int imx_spdif_audio_probe(struct platform_device *pdev)
 		goto end;
 	}
 
-	platform_set_drvdata(pdev, data);
-
 end:
 	of_node_put(spdif_np);
 
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 1ded881..2389ab4 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -99,7 +99,7 @@ static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream,
 		if (ret && ret != -ENOTSUPP)
 			goto err;
 	}
-
+	return 0;
 err:
 	return ret;
 }
diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
index 803f95e..7d7c872 100644
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -30,11 +30,15 @@ config SND_SST_IPC_ACPI
 config SND_SOC_INTEL_SST
 	tristate
 	select SND_SOC_INTEL_SST_ACPI if ACPI
+	select SND_SOC_INTEL_SST_MATCH if ACPI
 	depends on (X86 || COMPILE_TEST)
 
 config SND_SOC_INTEL_SST_ACPI
 	tristate
 
+config SND_SOC_INTEL_SST_MATCH
+	tristate
+
 config SND_SOC_INTEL_HASWELL
 	tristate
 
@@ -57,7 +61,7 @@ config SND_SOC_INTEL_HASWELL_MACH
 config SND_SOC_INTEL_BYT_RT5640_MACH
 	tristate "ASoC Audio driver for Intel Baytrail with RT5640 codec"
 	depends on X86_INTEL_LPSS && I2C
-	depends on DW_DMAC_CORE=y && (SND_SOC_INTEL_BYTCR_RT5640_MACH = n)
+	depends on DW_DMAC_CORE=y && (SND_SST_IPC_ACPI = n)
 	select SND_SOC_INTEL_SST
 	select SND_SOC_INTEL_BAYTRAIL
 	select SND_SOC_RT5640
@@ -69,7 +73,7 @@ config SND_SOC_INTEL_BYT_RT5640_MACH
 config SND_SOC_INTEL_BYT_MAX98090_MACH
 	tristate "ASoC Audio driver for Intel Baytrail with MAX98090 codec"
 	depends on X86_INTEL_LPSS && I2C
-	depends on DW_DMAC_CORE=y
+	depends on DW_DMAC_CORE=y && (SND_SST_IPC_ACPI = n)
 	select SND_SOC_INTEL_SST
 	select SND_SOC_INTEL_BAYTRAIL
 	select SND_SOC_MAX98090
@@ -97,6 +101,7 @@ config SND_SOC_INTEL_BYTCR_RT5640_MACH
 	select SND_SOC_RT5640
 	select SND_SST_MFLD_PLATFORM
 	select SND_SST_IPC_ACPI
+	select SND_SOC_INTEL_SST_MATCH if ACPI
 	help
           This adds support for ASoC machine driver for Intel(R) Baytrail and Baytrail-CR
           platforms with RT5640 audio codec.
@@ -109,6 +114,7 @@ config SND_SOC_INTEL_BYTCR_RT5651_MACH
 	select SND_SOC_RT5651
 	select SND_SST_MFLD_PLATFORM
 	select SND_SST_IPC_ACPI
+	select SND_SOC_INTEL_SST_MATCH if ACPI
 	help
           This adds support for ASoC machine driver for Intel(R) Baytrail and Baytrail-CR
           platforms with RT5651 audio codec.
@@ -121,6 +127,7 @@ config SND_SOC_INTEL_CHT_BSW_RT5672_MACH
         select SND_SOC_RT5670
         select SND_SST_MFLD_PLATFORM
         select SND_SST_IPC_ACPI
+	select SND_SOC_INTEL_SST_MATCH if ACPI
         help
           This adds support for ASoC machine driver for Intel(R) Cherrytrail & Braswell
           platforms with RT5672 audio codec.
@@ -133,6 +140,7 @@ config SND_SOC_INTEL_CHT_BSW_RT5645_MACH
 	select SND_SOC_RT5645
 	select SND_SST_MFLD_PLATFORM
 	select SND_SST_IPC_ACPI
+	select SND_SOC_INTEL_SST_MATCH if ACPI
 	help
 	  This adds support for ASoC machine driver for Intel(R) Cherrytrail & Braswell
 	  platforms with RT5645/5650 audio codec.
@@ -145,6 +153,7 @@ config SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH
 	select SND_SOC_TS3A227E
 	select SND_SST_MFLD_PLATFORM
 	select SND_SST_IPC_ACPI
+	select SND_SOC_INTEL_SST_MATCH if ACPI
 	help
       This adds support for ASoC machine driver for Intel(R) Cherrytrail & Braswell
       platforms with MAX98090 audio codec it also can support TI jack chip as aux device.
diff --git a/sound/soc/intel/atom/sst-mfld-platform-pcm.c b/sound/soc/intel/atom/sst-mfld-platform-pcm.c
index 55c33dc..52ed434 100644
--- a/sound/soc/intel/atom/sst-mfld-platform-pcm.c
+++ b/sound/soc/intel/atom/sst-mfld-platform-pcm.c
@@ -528,6 +528,7 @@ static struct snd_soc_dai_driver sst_platform_dai[] = {
 	.ops = &sst_compr_dai_ops,
 	.playback = {
 		.stream_name = "Compress Playback",
+		.channels_min = 1,
 	},
 },
 /* BE CPU  Dais */
diff --git a/sound/soc/intel/boards/skl_rt286.c b/sound/soc/intel/boards/skl_rt286.c
index 7396ddb..2cbcbe4 100644
--- a/sound/soc/intel/boards/skl_rt286.c
+++ b/sound/soc/intel/boards/skl_rt286.c
@@ -212,7 +212,10 @@ static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
 {
 	struct snd_interval *channels = hw_param_interval(params,
 						SNDRV_PCM_HW_PARAM_CHANNELS);
-	channels->min = channels->max = 4;
+	if (params_channels(params) == 2)
+		channels->min = channels->max = 2;
+	else
+		channels->min = channels->max = 4;
 
 	return 0;
 }
diff --git a/sound/soc/intel/common/Makefile b/sound/soc/intel/common/Makefile
index 668fdee..fbbb25c 100644
--- a/sound/soc/intel/common/Makefile
+++ b/sound/soc/intel/common/Makefile
@@ -1,13 +1,10 @@
 snd-soc-sst-dsp-objs := sst-dsp.o
-ifneq ($(CONFIG_SND_SST_IPC_ACPI),)
-snd-soc-sst-acpi-objs := sst-match-acpi.o
-else
-snd-soc-sst-acpi-objs := sst-acpi.o sst-match-acpi.o
-endif
-
+snd-soc-sst-acpi-objs := sst-acpi.o
+snd-soc-sst-match-objs := sst-match-acpi.o
 snd-soc-sst-ipc-objs := sst-ipc.o
 
 snd-soc-sst-dsp-$(CONFIG_DW_DMAC_CORE) += sst-firmware.o
 
 obj-$(CONFIG_SND_SOC_INTEL_SST) += snd-soc-sst-dsp.o snd-soc-sst-ipc.o
 obj-$(CONFIG_SND_SOC_INTEL_SST_ACPI) += snd-soc-sst-acpi.o
+obj-$(CONFIG_SND_SOC_INTEL_SST_MATCH) += snd-soc-sst-match.o
diff --git a/sound/soc/intel/common/sst-acpi.c b/sound/soc/intel/common/sst-acpi.c
index 7a85c57..2c5eda1 100644
--- a/sound/soc/intel/common/sst-acpi.c
+++ b/sound/soc/intel/common/sst-acpi.c
@@ -215,6 +215,7 @@ static struct sst_acpi_desc sst_acpi_broadwell_desc = {
 	.dma_size = SST_LPT_DSP_DMA_SIZE,
 };
 
+#if !IS_ENABLED(CONFIG_SND_SST_IPC_ACPI)
 static struct sst_acpi_mach baytrail_machines[] = {
 	{ "10EC5640", "byt-rt5640", "intel/fw_sst_0f28.bin-48kHz_i2s_master", NULL, NULL, NULL },
 	{ "193C9890", "byt-max98090", "intel/fw_sst_0f28.bin-48kHz_i2s_master", NULL, NULL, NULL },
@@ -231,11 +232,14 @@ static struct sst_acpi_desc sst_acpi_baytrail_desc = {
 	.sst_id = SST_DEV_ID_BYT,
 	.resindex_dma_base = -1,
 };
+#endif
 
 static const struct acpi_device_id sst_acpi_match[] = {
 	{ "INT33C8", (unsigned long)&sst_acpi_haswell_desc },
 	{ "INT3438", (unsigned long)&sst_acpi_broadwell_desc },
+#if !IS_ENABLED(CONFIG_SND_SST_IPC_ACPI)
 	{ "80860F28", (unsigned long)&sst_acpi_baytrail_desc },
+#endif
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, sst_acpi_match);
diff --git a/sound/soc/intel/common/sst-match-acpi.c b/sound/soc/intel/common/sst-match-acpi.c
index dd077e1..3b4539d 100644
--- a/sound/soc/intel/common/sst-match-acpi.c
+++ b/sound/soc/intel/common/sst-match-acpi.c
@@ -41,3 +41,6 @@ struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines)
 	return NULL;
 }
 EXPORT_SYMBOL_GPL(sst_acpi_find_machine);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Intel Common ACPI Match module");
diff --git a/sound/soc/intel/skylake/skl-messages.c b/sound/soc/intel/skylake/skl-messages.c
index de6dac4..4629372 100644
--- a/sound/soc/intel/skylake/skl-messages.c
+++ b/sound/soc/intel/skylake/skl-messages.c
@@ -688,14 +688,14 @@ int skl_unbind_modules(struct skl_sst *ctx,
 	/* get src queue index */
 	src_index = skl_get_queue_index(src_mcfg->m_out_pin, dst_id, out_max);
 	if (src_index < 0)
-		return -EINVAL;
+		return 0;
 
 	msg.src_queue = src_index;
 
 	/* get dst queue index */
 	dst_index  = skl_get_queue_index(dst_mcfg->m_in_pin, src_id, in_max);
 	if (dst_index < 0)
-		return -EINVAL;
+		return 0;
 
 	msg.dst_queue = dst_index;
 
@@ -747,7 +747,7 @@ int skl_bind_modules(struct skl_sst *ctx,
 
 	skl_dump_bind_info(ctx, src_mcfg, dst_mcfg);
 
-	if (src_mcfg->m_state < SKL_MODULE_INIT_DONE &&
+	if (src_mcfg->m_state < SKL_MODULE_INIT_DONE ||
 		dst_mcfg->m_state < SKL_MODULE_INIT_DONE)
 		return 0;
 
diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c
index f355325..b6e6b61 100644
--- a/sound/soc/intel/skylake/skl-pcm.c
+++ b/sound/soc/intel/skylake/skl-pcm.c
@@ -863,6 +863,7 @@ static int skl_get_delay_from_lpib(struct hdac_ext_bus *ebus,
 		else
 			delay += hstream->bufsize;
 	}
+	delay = (hstream->bufsize == delay) ? 0 : delay;
 
 	if (delay >= hstream->period_bytes) {
 		dev_info(bus->dev,
diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
index 4624556..a294fee 100644
--- a/sound/soc/intel/skylake/skl-topology.c
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -54,12 +54,9 @@ static int is_skl_dsp_widget_type(struct snd_soc_dapm_widget *w)
 
 /*
  * Each pipelines needs memory to be allocated. Check if we have free memory
- * from available pool. Then only add this to pool
- * This is freed when pipe is deleted
- * Note: DSP does actual memory management we only keep track for complete
- * pool
+ * from available pool.
  */
-static bool skl_tplg_alloc_pipe_mem(struct skl *skl,
+static bool skl_is_pipe_mem_avail(struct skl *skl,
 				struct skl_module_cfg *mconfig)
 {
 	struct skl_sst *ctx = skl->skl_sst;
@@ -74,10 +71,20 @@ static bool skl_tplg_alloc_pipe_mem(struct skl *skl,
 				"exceeds ppl memory available %d mem %d\n",
 				skl->resource.max_mem, skl->resource.mem);
 		return false;
+	} else {
+		return true;
 	}
+}
 
+/*
+ * Add the mem to the mem pool. This is freed when pipe is deleted.
+ * Note: DSP does actual memory management we only keep track for complete
+ * pool
+ */
+static void skl_tplg_alloc_pipe_mem(struct skl *skl,
+				struct skl_module_cfg *mconfig)
+{
 	skl->resource.mem += mconfig->pipe->memory_pages;
-	return true;
 }
 
 /*
@@ -85,10 +92,10 @@ static bool skl_tplg_alloc_pipe_mem(struct skl *skl,
  * quantified in MCPS (Million Clocks Per Second) required for module/pipe
  *
  * Each pipelines needs mcps to be allocated. Check if we have mcps for this
- * pipe. This adds the mcps to driver counter
- * This is removed on pipeline delete
+ * pipe.
  */
-static bool skl_tplg_alloc_pipe_mcps(struct skl *skl,
+
+static bool skl_is_pipe_mcps_avail(struct skl *skl,
 				struct skl_module_cfg *mconfig)
 {
 	struct skl_sst *ctx = skl->skl_sst;
@@ -98,13 +105,18 @@ static bool skl_tplg_alloc_pipe_mcps(struct skl *skl,
 			"%s: module_id %d instance %d\n", __func__,
 			mconfig->id.module_id, mconfig->id.instance_id);
 		dev_err(ctx->dev,
-			"exceeds ppl memory available %d > mem %d\n",
+			"exceeds ppl mcps available %d > mem %d\n",
 			skl->resource.max_mcps, skl->resource.mcps);
 		return false;
+	} else {
+		return true;
 	}
+}
 
+static void skl_tplg_alloc_pipe_mcps(struct skl *skl,
+				struct skl_module_cfg *mconfig)
+{
 	skl->resource.mcps += mconfig->mcps;
-	return true;
 }
 
 /*
@@ -411,7 +423,7 @@ skl_tplg_init_pipe_modules(struct skl *skl, struct skl_pipe *pipe)
 		mconfig = w->priv;
 
 		/* check resource available */
-		if (!skl_tplg_alloc_pipe_mcps(skl, mconfig))
+		if (!skl_is_pipe_mcps_avail(skl, mconfig))
 			return -ENOMEM;
 
 		if (mconfig->is_loadable && ctx->dsp->fw_ops.load_mod) {
@@ -435,6 +447,7 @@ skl_tplg_init_pipe_modules(struct skl *skl, struct skl_pipe *pipe)
 		ret = skl_tplg_set_module_params(w, ctx);
 		if (ret < 0)
 			return ret;
+		skl_tplg_alloc_pipe_mcps(skl, mconfig);
 	}
 
 	return 0;
@@ -477,10 +490,10 @@ static int skl_tplg_mixer_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
 	struct skl_sst *ctx = skl->skl_sst;
 
 	/* check resource available */
-	if (!skl_tplg_alloc_pipe_mcps(skl, mconfig))
+	if (!skl_is_pipe_mcps_avail(skl, mconfig))
 		return -EBUSY;
 
-	if (!skl_tplg_alloc_pipe_mem(skl, mconfig))
+	if (!skl_is_pipe_mem_avail(skl, mconfig))
 		return -ENOMEM;
 
 	/*
@@ -526,11 +539,15 @@ static int skl_tplg_mixer_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
 		src_module = dst_module;
 	}
 
+	skl_tplg_alloc_pipe_mem(skl, mconfig);
+	skl_tplg_alloc_pipe_mcps(skl, mconfig);
+
 	return 0;
 }
 
 static int skl_tplg_bind_sinks(struct snd_soc_dapm_widget *w,
 				struct skl *skl,
+				struct snd_soc_dapm_widget *src_w,
 				struct skl_module_cfg *src_mconfig)
 {
 	struct snd_soc_dapm_path *p;
@@ -547,6 +564,10 @@ static int skl_tplg_bind_sinks(struct snd_soc_dapm_widget *w,
 		dev_dbg(ctx->dev, "%s: sink widget=%s\n", __func__, p->sink->name);
 
 		next_sink = p->sink;
+
+		if (!is_skl_dsp_widget_type(p->sink))
+			return skl_tplg_bind_sinks(p->sink, skl, src_w, src_mconfig);
+
 		/*
 		 * here we will check widgets in sink pipelines, so that
 		 * can be any widgets type and we are only interested if
@@ -576,7 +597,7 @@ static int skl_tplg_bind_sinks(struct snd_soc_dapm_widget *w,
 	}
 
 	if (!sink)
-		return skl_tplg_bind_sinks(next_sink, skl, src_mconfig);
+		return skl_tplg_bind_sinks(next_sink, skl, src_w, src_mconfig);
 
 	return 0;
 }
@@ -605,7 +626,7 @@ static int skl_tplg_pga_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
 	 * if sink is not started, start sink pipe first, then start
 	 * this pipe
 	 */
-	ret = skl_tplg_bind_sinks(w, skl, src_mconfig);
+	ret = skl_tplg_bind_sinks(w, skl, w, src_mconfig);
 	if (ret)
 		return ret;
 
@@ -773,10 +794,7 @@ static int skl_tplg_mixer_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
 			continue;
 		}
 
-		ret = skl_unbind_modules(ctx, src_module, dst_module);
-		if (ret < 0)
-			return ret;
-
+		skl_unbind_modules(ctx, src_module, dst_module);
 		src_module = dst_module;
 	}
 
@@ -814,9 +832,6 @@ static int skl_tplg_pga_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
 			 * This is a connecter and if path is found that means
 			 * unbind between source and sink has not happened yet
 			 */
-			ret = skl_stop_pipe(ctx, sink_mconfig->pipe);
-			if (ret < 0)
-				return ret;
 			ret = skl_unbind_modules(ctx, src_mconfig,
 							sink_mconfig);
 		}
@@ -842,6 +857,12 @@ static int skl_tplg_vmixer_event(struct snd_soc_dapm_widget *w,
 	case SND_SOC_DAPM_PRE_PMU:
 		return skl_tplg_mixer_dapm_pre_pmu_event(w, skl);
 
+	case SND_SOC_DAPM_POST_PMU:
+		return skl_tplg_mixer_dapm_post_pmu_event(w, skl);
+
+	case SND_SOC_DAPM_PRE_PMD:
+		return skl_tplg_mixer_dapm_pre_pmd_event(w, skl);
+
 	case SND_SOC_DAPM_POST_PMD:
 		return skl_tplg_mixer_dapm_post_pmd_event(w, skl);
 	}
@@ -916,6 +937,13 @@ static int skl_tplg_tlv_control_get(struct snd_kcontrol *kcontrol,
 		skl_get_module_params(skl->skl_sst, (u32 *)bc->params,
 				      bc->max, bc->param_id, mconfig);
 
+	/* decrement size for TLV header */
+	size -= 2 * sizeof(u32);
+
+	/* check size as we don't want to send kernel data */
+	if (size > bc->max)
+		size = bc->max;
+
 	if (bc->params) {
 		if (copy_to_user(data, &bc->param_id, sizeof(u32)))
 			return -EFAULT;
@@ -1510,6 +1538,7 @@ int skl_tplg_init(struct snd_soc_platform *platform, struct hdac_ext_bus *ebus)
 					&skl_tplg_ops, fw, 0);
 	if (ret < 0) {
 		dev_err(bus->dev, "tplg component load failed%d\n", ret);
+		release_firmware(fw);
 		return -EINVAL;
 	}
 
diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c
index 443a15d..092705e 100644
--- a/sound/soc/intel/skylake/skl.c
+++ b/sound/soc/intel/skylake/skl.c
@@ -614,8 +614,6 @@ static int skl_probe(struct pci_dev *pci,
 		goto out_unregister;
 
 	/*configure PM */
-	pm_runtime_set_autosuspend_delay(bus->dev, SKL_SUSPEND_DELAY);
-	pm_runtime_use_autosuspend(bus->dev);
 	pm_runtime_put_noidle(bus->dev);
 	pm_runtime_allow(bus->dev);
 
diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig
index 15c04e2..9769676 100644
--- a/sound/soc/mediatek/Kconfig
+++ b/sound/soc/mediatek/Kconfig
@@ -9,7 +9,7 @@ config SND_SOC_MEDIATEK
 
 config SND_SOC_MT8173_MAX98090
 	tristate "ASoC Audio driver for MT8173 with MAX98090 codec"
-	depends on SND_SOC_MEDIATEK
+	depends on SND_SOC_MEDIATEK && I2C
 	select SND_SOC_MAX98090
 	help
 	  This adds ASoC driver for Mediatek MT8173 boards
@@ -19,7 +19,7 @@ config SND_SOC_MT8173_MAX98090
 
 config SND_SOC_MT8173_RT5650_RT5676
 	tristate "ASoC Audio driver for MT8173 with RT5650 RT5676 codecs"
-	depends on SND_SOC_MEDIATEK
+	depends on SND_SOC_MEDIATEK && I2C
 	select SND_SOC_RT5645
 	select SND_SOC_RT5677
 	help
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index c866ade..a6c7b8d 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -381,9 +381,19 @@ static int mxs_saif_startup(struct snd_pcm_substream *substream,
 	__raw_writel(BM_SAIF_CTRL_CLKGATE,
 		saif->base + SAIF_CTRL + MXS_CLR_ADDR);
 
+	clk_prepare(saif->clk);
+
 	return 0;
 }
 
+static void mxs_saif_shutdown(struct snd_pcm_substream *substream,
+			      struct snd_soc_dai *cpu_dai)
+{
+	struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);
+
+	clk_unprepare(saif->clk);
+}
+
 /*
  * Should only be called when port is inactive.
  * although can be called multiple times by upper layers.
@@ -424,8 +434,6 @@ static int mxs_saif_hw_params(struct snd_pcm_substream *substream,
 		return ret;
 	}
 
-	/* prepare clk in hw_param, enable in trigger */
-	clk_prepare(saif->clk);
 	if (saif != master_saif) {
 		/*
 		* Set an initial clock rate for the saif internal logic to work
@@ -611,6 +619,7 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
 
 static const struct snd_soc_dai_ops mxs_saif_dai_ops = {
 	.startup = mxs_saif_startup,
+	.shutdown = mxs_saif_shutdown,
 	.trigger = mxs_saif_trigger,
 	.prepare = mxs_saif_prepare,
 	.hw_params = mxs_saif_hw_params,
diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c
index 79688aa..4aeb8e1 100644
--- a/sound/soc/qcom/lpass-platform.c
+++ b/sound/soc/qcom/lpass-platform.c
@@ -440,18 +440,18 @@ static irqreturn_t lpass_platform_lpaif_irq(int irq, void *data)
 }
 
 static int lpass_platform_alloc_buffer(struct snd_pcm_substream *substream,
-		struct snd_soc_pcm_runtime *soc_runtime)
+		struct snd_soc_pcm_runtime *rt)
 {
 	struct snd_dma_buffer *buf = &substream->dma_buffer;
 	size_t size = lpass_platform_pcm_hardware.buffer_bytes_max;
 
 	buf->dev.type = SNDRV_DMA_TYPE_DEV;
-	buf->dev.dev = soc_runtime->dev;
+	buf->dev.dev = rt->platform->dev;
 	buf->private_data = NULL;
-	buf->area = dma_alloc_coherent(soc_runtime->dev, size, &buf->addr,
+	buf->area = dma_alloc_coherent(rt->platform->dev, size, &buf->addr,
 			GFP_KERNEL);
 	if (!buf->area) {
-		dev_err(soc_runtime->dev, "%s: Could not allocate DMA buffer\n",
+		dev_err(rt->platform->dev, "%s: Could not allocate DMA buffer\n",
 				__func__);
 		return -ENOMEM;
 	}
@@ -461,12 +461,12 @@ static int lpass_platform_alloc_buffer(struct snd_pcm_substream *substream,
 }
 
 static void lpass_platform_free_buffer(struct snd_pcm_substream *substream,
-		struct snd_soc_pcm_runtime *soc_runtime)
+		struct snd_soc_pcm_runtime *rt)
 {
 	struct snd_dma_buffer *buf = &substream->dma_buffer;
 
 	if (buf->area) {
-		dma_free_coherent(soc_runtime->dev, buf->bytes, buf->area,
+		dma_free_coherent(rt->dev, buf->bytes, buf->area,
 				buf->addr);
 	}
 	buf->area = NULL;
@@ -499,9 +499,6 @@ static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime)
 
 	snd_soc_pcm_set_drvdata(soc_runtime, data);
 
-	soc_runtime->dev->coherent_dma_mask = DMA_BIT_MASK(32);
-	soc_runtime->dev->dma_mask = &soc_runtime->dev->coherent_dma_mask;
-
 	ret = lpass_platform_alloc_buffer(substream, soc_runtime);
 	if (ret)
 		return ret;
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 5a2812f..0d37079 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -310,7 +310,7 @@ struct dapm_kcontrol_data {
 };
 
 static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget,
-	struct snd_kcontrol *kcontrol)
+	struct snd_kcontrol *kcontrol, const char *ctrl_name)
 {
 	struct dapm_kcontrol_data *data;
 	struct soc_mixer_control *mc;
@@ -333,7 +333,7 @@ static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget,
 		if (mc->autodisable) {
 			struct snd_soc_dapm_widget template;
 
-			name = kasprintf(GFP_KERNEL, "%s %s", kcontrol->id.name,
+			name = kasprintf(GFP_KERNEL, "%s %s", ctrl_name,
 					 "Autodisable");
 			if (!name) {
 				ret = -ENOMEM;
@@ -371,7 +371,7 @@ static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget,
 		if (e->autodisable) {
 			struct snd_soc_dapm_widget template;
 
-			name = kasprintf(GFP_KERNEL, "%s %s", kcontrol->id.name,
+			name = kasprintf(GFP_KERNEL, "%s %s", ctrl_name,
 					 "Autodisable");
 			if (!name) {
 				ret = -ENOMEM;
@@ -871,7 +871,7 @@ static int dapm_create_or_share_kcontrol(struct snd_soc_dapm_widget *w,
 
 		kcontrol->private_free = dapm_kcontrol_free;
 
-		ret = dapm_kcontrol_data_alloc(w, kcontrol);
+		ret = dapm_kcontrol_data_alloc(w, kcontrol, name);
 		if (ret) {
 			snd_ctl_free_one(kcontrol);
 			goto exit_free;
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index e898b42..1af4f23 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1810,7 +1810,8 @@ int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream)
 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) &&
 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) &&
 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) &&
-		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP))
+		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) &&
+		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND))
 			continue;
 
 		dev_dbg(be->dev, "ASoC: hw_free BE %s\n",
diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index cc39f63..007cf58 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -2455,7 +2455,6 @@ int snd_usbmidi_create(struct snd_card *card,
 	else
 		err = snd_usbmidi_create_endpoints(umidi, endpoints);
 	if (err < 0) {
-		snd_usbmidi_free(umidi);
 		return err;
 	}
 
diff --git a/tools/hv/Makefile b/tools/hv/Makefile
index a8ab795..a8c4644 100644
--- a/tools/hv/Makefile
+++ b/tools/hv/Makefile
@@ -5,6 +5,8 @@ PTHREAD_LIBS = -lpthread
 WARNINGS = -Wall -Wextra
 CFLAGS = $(WARNINGS) -g $(PTHREAD_LIBS) $(shell getconf LFS_CFLAGS)
 
+CFLAGS += -D__EXPORTED_HEADERS__ -I../../include/uapi -I../../include
+
 all: hv_kvp_daemon hv_vss_daemon hv_fcopy_daemon
 %: %.c
 	$(CC) $(CFLAGS) -o $@ $^
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index 81a2eb7..05d8158 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -2068,6 +2068,15 @@ int intel_pt_process_auxtrace_info(union perf_event *event,
 		err = -ENOMEM;
 		goto err_free_queues;
 	}
+
+	/*
+	 * Since this thread will not be kept in any rbtree not in a
+	 * list, initialize its list node so that at thread__put() the
+	 * current thread lifetime assuption is kept and we don't segfault
+	 * at list_del_init().
+	 */
+	INIT_LIST_HEAD(&pt->unknown_thread->node);
+
 	err = thread__set_comm(pt->unknown_thread, "unknown", 0);
 	if (err)
 		goto err_delete_thread;
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 4f7b0ef..813d9b2 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -399,6 +399,9 @@ static void tracepoint_error(struct parse_events_error *e, int err,
 {
 	char help[BUFSIZ];
 
+	if (!e)
+		return;
+
 	/*
 	 * We get error directly from syscall errno ( > 0),
 	 * or from encoded pointer's error ( < 0).
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 2be10fb..4ce5c5e 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -686,8 +686,9 @@ static int call_probe_finder(Dwarf_Die *sc_die, struct probe_finder *pf)
 		pf->fb_ops = NULL;
 #if _ELFUTILS_PREREQ(0, 142)
 	} else if (nops == 1 && pf->fb_ops[0].atom == DW_OP_call_frame_cfa &&
-		   pf->cfi != NULL) {
-		if (dwarf_cfi_addrframe(pf->cfi, pf->addr, &frame) != 0 ||
+		   (pf->cfi_eh != NULL || pf->cfi_dbg != NULL)) {
+		if ((dwarf_cfi_addrframe(pf->cfi_eh, pf->addr, &frame) != 0 &&
+		     (dwarf_cfi_addrframe(pf->cfi_dbg, pf->addr, &frame) != 0)) ||
 		    dwarf_frame_cfa(frame, &pf->fb_ops, &nops) != 0) {
 			pr_warning("Failed to get call frame on 0x%jx\n",
 				   (uintmax_t)pf->addr);
@@ -1015,8 +1016,7 @@ static int pubname_search_cb(Dwarf *dbg, Dwarf_Global *gl, void *data)
 	return DWARF_CB_OK;
 }
 
-/* Find probe points from debuginfo */
-static int debuginfo__find_probes(struct debuginfo *dbg,
+static int debuginfo__find_probe_location(struct debuginfo *dbg,
 				  struct probe_finder *pf)
 {
 	struct perf_probe_point *pp = &pf->pev->point;
@@ -1025,27 +1025,6 @@ static int debuginfo__find_probes(struct debuginfo *dbg,
 	Dwarf_Die *diep;
 	int ret = 0;
 
-#if _ELFUTILS_PREREQ(0, 142)
-	Elf *elf;
-	GElf_Ehdr ehdr;
-	GElf_Shdr shdr;
-
-	/* Get the call frame information from this dwarf */
-	elf = dwarf_getelf(dbg->dbg);
-	if (elf == NULL)
-		return -EINVAL;
-
-	if (gelf_getehdr(elf, &ehdr) == NULL)
-		return -EINVAL;
-
-	if (elf_section_by_name(elf, &ehdr, &shdr, ".eh_frame", NULL) &&
-	    shdr.sh_type == SHT_PROGBITS) {
-		pf->cfi = dwarf_getcfi_elf(elf);
-	} else {
-		pf->cfi = dwarf_getcfi(dbg->dbg);
-	}
-#endif
-
 	off = 0;
 	pf->lcache = intlist__new(NULL);
 	if (!pf->lcache)
@@ -1108,6 +1087,39 @@ found:
 	return ret;
 }
 
+/* Find probe points from debuginfo */
+static int debuginfo__find_probes(struct debuginfo *dbg,
+				  struct probe_finder *pf)
+{
+	int ret = 0;
+
+#if _ELFUTILS_PREREQ(0, 142)
+	Elf *elf;
+	GElf_Ehdr ehdr;
+	GElf_Shdr shdr;
+
+	if (pf->cfi_eh || pf->cfi_dbg)
+		return debuginfo__find_probe_location(dbg, pf);
+
+	/* Get the call frame information from this dwarf */
+	elf = dwarf_getelf(dbg->dbg);
+	if (elf == NULL)
+		return -EINVAL;
+
+	if (gelf_getehdr(elf, &ehdr) == NULL)
+		return -EINVAL;
+
+	if (elf_section_by_name(elf, &ehdr, &shdr, ".eh_frame", NULL) &&
+	    shdr.sh_type == SHT_PROGBITS)
+		pf->cfi_eh = dwarf_getcfi_elf(elf);
+
+	pf->cfi_dbg = dwarf_getcfi(dbg->dbg);
+#endif
+
+	ret = debuginfo__find_probe_location(dbg, pf);
+	return ret;
+}
+
 struct local_vars_finder {
 	struct probe_finder *pf;
 	struct perf_probe_arg *args;
diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
index bed8271..0aec770 100644
--- a/tools/perf/util/probe-finder.h
+++ b/tools/perf/util/probe-finder.h
@@ -76,7 +76,10 @@ struct probe_finder {
 
 	/* For variable searching */
 #if _ELFUTILS_PREREQ(0, 142)
-	Dwarf_CFI		*cfi;		/* Call Frame Information */
+	/* Call Frame Information from .eh_frame */
+	Dwarf_CFI		*cfi_eh;
+	/* Call Frame Information from .debug_frame */
+	Dwarf_CFI		*cfi_dbg;
 #endif
 	Dwarf_Op		*fb_ops;	/* Frame base attribute */
 	struct perf_probe_arg	*pvar;		/* Current target variable */
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 2b58edc..afb0c45 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -311,6 +311,16 @@ int perf_stat_process_counter(struct perf_stat_config *config,
 
 	aggr->val = aggr->ena = aggr->run = 0;
 
+	/*
+	 * We calculate counter's data every interval,
+	 * and the display code shows ps->res_stats
+	 * avg value. We need to zero the stats for
+	 * interval mode, otherwise overall avg running
+	 * averages will be shown for each interval.
+	 */
+	if (config->interval)
+		init_stats(ps->res_stats);
+
 	if (counter->per_pkg)
 		zero_per_pkg(counter);
 
diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
index 90bd2ea..b3281dc 100644
--- a/tools/testing/nvdimm/test/nfit.c
+++ b/tools/testing/nvdimm/test/nfit.c
@@ -217,13 +217,16 @@ static int nfit_test_cmd_set_config_data(struct nd_cmd_set_config_hdr *nd_cmd,
 	return rc;
 }
 
+#define NFIT_TEST_ARS_RECORDS 4
+
 static int nfit_test_cmd_ars_cap(struct nd_cmd_ars_cap *nd_cmd,
 		unsigned int buf_len)
 {
 	if (buf_len < sizeof(*nd_cmd))
 		return -EINVAL;
 
-	nd_cmd->max_ars_out = 256;
+	nd_cmd->max_ars_out = sizeof(struct nd_cmd_ars_status)
+		+ NFIT_TEST_ARS_RECORDS * sizeof(struct nd_ars_record);
 	nd_cmd->status = (ND_ARS_PERSISTENT | ND_ARS_VOLATILE) << 16;
 
 	return 0;
@@ -246,7 +249,8 @@ static int nfit_test_cmd_ars_status(struct nd_cmd_ars_status *nd_cmd,
 	if (buf_len < sizeof(*nd_cmd))
 		return -EINVAL;
 
-	nd_cmd->out_length = 256;
+	nd_cmd->out_length = sizeof(struct nd_cmd_ars_status);
+	/* TODO: emit error records */
 	nd_cmd->num_records = 0;
 	nd_cmd->address = 0;
 	nd_cmd->length = -1ULL;
diff --git a/tools/testing/selftests/efivarfs/efivarfs.sh b/tools/testing/selftests/efivarfs/efivarfs.sh
index 77edcdc..0572784 100755
--- a/tools/testing/selftests/efivarfs/efivarfs.sh
+++ b/tools/testing/selftests/efivarfs/efivarfs.sh
@@ -88,7 +88,11 @@ test_delete()
 		exit 1
 	fi
 
-	rm $file
+	rm $file 2>/dev/null
+	if [ $? -ne 0 ]; then
+		chattr -i $file
+		rm $file
+	fi
 
 	if [ -e $file ]; then
 		echo "$file couldn't be deleted" >&2
@@ -111,6 +115,7 @@ test_zero_size_delete()
 		exit 1
 	fi
 
+	chattr -i $file
 	printf "$attrs" > $file
 
 	if [ -e $file ]; then
@@ -141,7 +146,11 @@ test_valid_filenames()
 			echo "$file could not be created" >&2
 			ret=1
 		else
-			rm $file
+			rm $file 2>/dev/null
+			if [ $? -ne 0 ]; then
+				chattr -i $file
+				rm $file
+			fi
 		fi
 	done
 
@@ -174,7 +183,11 @@ test_invalid_filenames()
 
 		if [ -e $file ]; then
 			echo "Creating $file should have failed" >&2
-			rm $file
+			rm $file 2>/dev/null
+			if [ $? -ne 0 ]; then
+				chattr -i $file
+				rm $file
+			fi
 			ret=1
 		fi
 	done
diff --git a/tools/testing/selftests/efivarfs/open-unlink.c b/tools/testing/selftests/efivarfs/open-unlink.c
index 8c07644..4af74f7 100644
--- a/tools/testing/selftests/efivarfs/open-unlink.c
+++ b/tools/testing/selftests/efivarfs/open-unlink.c
@@ -1,10 +1,68 @@
+#include <errno.h>
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <sys/ioctl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
+#include <linux/fs.h>
+
+static int set_immutable(const char *path, int immutable)
+{
+	unsigned int flags;
+	int fd;
+	int rc;
+	int error;
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0)
+		return fd;
+
+	rc = ioctl(fd, FS_IOC_GETFLAGS, &flags);
+	if (rc < 0) {
+		error = errno;
+		close(fd);
+		errno = error;
+		return rc;
+	}
+
+	if (immutable)
+		flags |= FS_IMMUTABLE_FL;
+	else
+		flags &= ~FS_IMMUTABLE_FL;
+
+	rc = ioctl(fd, FS_IOC_SETFLAGS, &flags);
+	error = errno;
+	close(fd);
+	errno = error;
+	return rc;
+}
+
+static int get_immutable(const char *path)
+{
+	unsigned int flags;
+	int fd;
+	int rc;
+	int error;
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0)
+		return fd;
+
+	rc = ioctl(fd, FS_IOC_GETFLAGS, &flags);
+	if (rc < 0) {
+		error = errno;
+		close(fd);
+		errno = error;
+		return rc;
+	}
+	close(fd);
+	if (flags & FS_IMMUTABLE_FL)
+		return 1;
+	return 0;
+}
 
 int main(int argc, char **argv)
 {
@@ -27,7 +85,7 @@ int main(int argc, char **argv)
 	buf[4] = 0;
 
 	/* create a test variable */
-	fd = open(path, O_WRONLY | O_CREAT);
+	fd = open(path, O_WRONLY | O_CREAT, 0600);
 	if (fd < 0) {
 		perror("open(O_WRONLY)");
 		return EXIT_FAILURE;
@@ -41,6 +99,18 @@ int main(int argc, char **argv)
 
 	close(fd);
 
+	rc = get_immutable(path);
+	if (rc < 0) {
+		perror("ioctl(FS_IOC_GETFLAGS)");
+		return EXIT_FAILURE;
+	} else if (rc) {
+		rc = set_immutable(path, 0);
+		if (rc < 0) {
+			perror("ioctl(FS_IOC_SETFLAGS)");
+			return EXIT_FAILURE;
+		}
+	}
+
 	fd = open(path, O_RDONLY);
 	if (fd < 0) {
 		perror("open");
diff --git a/tools/testing/selftests/ftrace/test.d/instances/instance.tc b/tools/testing/selftests/ftrace/test.d/instances/instance.tc
index 773e276..1e1abe0 100644
--- a/tools/testing/selftests/ftrace/test.d/instances/instance.tc
+++ b/tools/testing/selftests/ftrace/test.d/instances/instance.tc
@@ -39,28 +39,23 @@ instance_slam() {
 }
 
 instance_slam &
-x=`jobs -l`
-p1=`echo $x | cut -d' ' -f2`
+p1=$!
 echo $p1
 
 instance_slam &
-x=`jobs -l | tail -1`
-p2=`echo $x | cut -d' ' -f2`
+p2=$!
 echo $p2
 
 instance_slam &
-x=`jobs -l | tail -1`
-p3=`echo $x | cut -d' ' -f2`
+p3=$!
 echo $p3
 
 instance_slam &
-x=`jobs -l | tail -1`
-p4=`echo $x | cut -d' ' -f2`
+p4=$!
 echo $p4
 
 instance_slam &
-x=`jobs -l | tail -1`
-p5=`echo $x | cut -d' ' -f2`
+p5=$!
 echo $p5
 
 ls -lR >/dev/null
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 69bca18..ea60646 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -143,7 +143,7 @@ static void kvm_timer_update_irq(struct kvm_vcpu *vcpu, bool new_level)
  * Check if there was a change in the timer state (should we raise or lower
  * the line level to the GIC).
  */
-static void kvm_timer_update_state(struct kvm_vcpu *vcpu)
+static int kvm_timer_update_state(struct kvm_vcpu *vcpu)
 {
 	struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
 
@@ -154,10 +154,12 @@ static void kvm_timer_update_state(struct kvm_vcpu *vcpu)
 	 * until we call this function from kvm_timer_flush_hwstate.
 	 */
 	if (!vgic_initialized(vcpu->kvm))
-	    return;
+		return -ENODEV;
 
 	if (kvm_timer_should_fire(vcpu) != timer->irq.level)
 		kvm_timer_update_irq(vcpu, !timer->irq.level);
+
+	return 0;
 }
 
 /*
@@ -218,7 +220,8 @@ void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu)
 	bool phys_active;
 	int ret;
 
-	kvm_timer_update_state(vcpu);
+	if (kvm_timer_update_state(vcpu))
+		return;
 
 	/*
 	* If we enter the guest with the virtual input level to the VGIC
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 043032c..00429b3 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -1875,8 +1875,8 @@ void kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu)
 static int vgic_vcpu_init_maps(struct kvm_vcpu *vcpu, int nr_irqs)
 {
 	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
-
-	int sz = (nr_irqs - VGIC_NR_PRIVATE_IRQS) / 8;
+	int nr_longs = BITS_TO_LONGS(nr_irqs - VGIC_NR_PRIVATE_IRQS);
+	int sz = nr_longs * sizeof(unsigned long);
 	vgic_cpu->pending_shared = kzalloc(sz, GFP_KERNEL);
 	vgic_cpu->active_shared = kzalloc(sz, GFP_KERNEL);
 	vgic_cpu->pend_act_shared = kzalloc(sz, GFP_KERNEL);
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 3531599..db2dd33 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -172,7 +172,7 @@ int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, unsigned long hva,
 	 * do alloc nowait since if we are going to sleep anyway we
 	 * may as well sleep faulting in page
 	 */
-	work = kmem_cache_zalloc(async_pf_cache, GFP_NOWAIT);
+	work = kmem_cache_zalloc(async_pf_cache, GFP_NOWAIT | __GFP_NOWARN);
 	if (!work)
 		return 0;