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347 files changed, 4014 insertions, 1618 deletions
diff --git a/Documentation/Changes b/Documentation/Changes index b175808..07c75d1 100644 --- a/Documentation/Changes +++ b/Documentation/Changes @@ -196,13 +196,6 @@ chmod 0644 /dev/cpu/microcode as root before you can use this. You'll probably also want to get the user-space microcode_ctl utility to use with this. -Powertweak ----------- - -If you are running v0.1.17 or earlier, you should upgrade to -version v0.99.0 or higher. Running old versions may cause problems -with programs using shared memory. - udev ---- udev is a userspace application for populating /dev dynamically with @@ -366,10 +359,6 @@ Intel P6 microcode ------------------ o <http://www.urbanmyth.org/microcode/> -Powertweak ----------- -o <http://powertweak.sourceforge.net/> - udev ---- o <http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev.html> diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl index 6c9d9d3..f517008 100644 --- a/Documentation/DocBook/device-drivers.tmpl +++ b/Documentation/DocBook/device-drivers.tmpl @@ -58,7 +58,7 @@ </sect1> <sect1><title>Wait queues and Wake events</title> !Iinclude/linux/wait.h -!Ekernel/wait.c +!Ekernel/sched/wait.c </sect1> <sect1><title>High-resolution timers</title> !Iinclude/linux/ktime.h diff --git a/Documentation/devicetree/bindings/i2c/i2c-omap.txt b/Documentation/devicetree/bindings/i2c/i2c-omap.txt index 56564aa..7e49839 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-omap.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-omap.txt @@ -1,7 +1,8 @@ I2C for OMAP platforms Required properties : -- compatible : Must be "ti,omap3-i2c" or "ti,omap4-i2c" +- compatible : Must be "ti,omap2420-i2c", "ti,omap2430-i2c", "ti,omap3-i2c" + or "ti,omap4-i2c" - ti,hwmods : Must be "i2c<n>", n being the instance number (1-based) - #address-cells = <1>; - #size-cells = <0>; diff --git a/Documentation/gpio/board.txt b/Documentation/gpio/board.txt new file mode 100644 index 0000000..0d03506 --- /dev/null +++ b/Documentation/gpio/board.txt @@ -0,0 +1,115 @@ +GPIO Mappings +============= + +This document explains how GPIOs can be assigned to given devices and functions. +Note that it only applies to the new descriptor-based interface. For a +description of the deprecated integer-based GPIO interface please refer to +gpio-legacy.txt (actually, there is no real mapping possible with the old +interface; you just fetch an integer from somewhere and request the +corresponding GPIO. + +Platforms that make use of GPIOs must select ARCH_REQUIRE_GPIOLIB (if GPIO usage +is mandatory) or ARCH_WANT_OPTIONAL_GPIOLIB (if GPIO support can be omitted) in +their Kconfig. Then, how GPIOs are mapped depends on what the platform uses to +describe its hardware layout. Currently, mappings can be defined through device +tree, ACPI, and platform data. + +Device Tree +----------- +GPIOs can easily be mapped to devices and functions in the device tree. The +exact way to do it depends on the GPIO controller providing the GPIOs, see the +device tree bindings for your controller. + +GPIOs mappings are defined in the consumer device's node, in a property named +<function>-gpios, where <function> is the function the driver will request +through gpiod_get(). For example: + + foo_device { + compatible = "acme,foo"; + ... + led-gpios = <&gpio 15 GPIO_ACTIVE_HIGH>, /* red */ + <&gpio 16 GPIO_ACTIVE_HIGH>, /* green */ + <&gpio 17 GPIO_ACTIVE_HIGH>; /* blue */ + + power-gpio = <&gpio 1 GPIO_ACTIVE_LOW>; + }; + +This property will make GPIOs 15, 16 and 17 available to the driver under the +"led" function, and GPIO 1 as the "power" GPIO: + + struct gpio_desc *red, *green, *blue, *power; + + red = gpiod_get_index(dev, "led", 0); + green = gpiod_get_index(dev, "led", 1); + blue = gpiod_get_index(dev, "led", 2); + + power = gpiod_get(dev, "power"); + +The led GPIOs will be active-high, while the power GPIO will be active-low (i.e. +gpiod_is_active_low(power) will be true). + +ACPI +---- +ACPI does not support function names for GPIOs. Therefore, only the "idx" +argument of gpiod_get_index() is useful to discriminate between GPIOs assigned +to a device. The "con_id" argument can still be set for debugging purposes (it +will appear under error messages as well as debug and sysfs nodes). + +Platform Data +------------- +Finally, GPIOs can be bound to devices and functions using platform data. Board +files that desire to do so need to include the following header: + + #include <linux/gpio/driver.h> + +GPIOs are mapped by the means of tables of lookups, containing instances of the +gpiod_lookup structure. Two macros are defined to help declaring such mappings: + + GPIO_LOOKUP(chip_label, chip_hwnum, dev_id, con_id, flags) + GPIO_LOOKUP_IDX(chip_label, chip_hwnum, dev_id, con_id, idx, flags) + +where + + - chip_label is the label of the gpiod_chip instance providing the GPIO + - chip_hwnum is the hardware number of the GPIO within the chip + - dev_id is the identifier of the device that will make use of this GPIO. If + NULL, the GPIO will be available to all devices. + - con_id is the name of the GPIO function from the device point of view. It + can be NULL. + - idx is the index of the GPIO within the function. + - flags is defined to specify the following properties: + * GPIOF_ACTIVE_LOW - to configure the GPIO as active-low + * GPIOF_OPEN_DRAIN - GPIO pin is open drain type. + * GPIOF_OPEN_SOURCE - GPIO pin is open source type. + +In the future, these flags might be extended to support more properties. + +Note that GPIO_LOOKUP() is just a shortcut to GPIO_LOOKUP_IDX() where idx = 0. + +A lookup table can then be defined as follows: + + struct gpiod_lookup gpios_table[] = { + GPIO_LOOKUP_IDX("gpio.0", 15, "foo.0", "led", 0, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("gpio.0", 16, "foo.0", "led", 1, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("gpio.0", 17, "foo.0", "led", 2, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio.0", 1, "foo.0", "power", GPIO_ACTIVE_LOW), + }; + +And the table can be added by the board code as follows: + + gpiod_add_table(gpios_table, ARRAY_SIZE(gpios_table)); + +The driver controlling "foo.0" will then be able to obtain its GPIOs as follows: + + struct gpio_desc *red, *green, *blue, *power; + + red = gpiod_get_index(dev, "led", 0); + green = gpiod_get_index(dev, "led", 1); + blue = gpiod_get_index(dev, "led", 2); + + power = gpiod_get(dev, "power"); + gpiod_direction_output(power, 1); + +Since the "power" GPIO is mapped as active-low, its actual signal will be 0 +after this code. Contrary to the legacy integer GPIO interface, the active-low +property is handled during mapping and is thus transparent to GPIO consumers. diff --git a/Documentation/gpio/consumer.txt b/Documentation/gpio/consumer.txt new file mode 100644 index 0000000..07c74a3 --- /dev/null +++ b/Documentation/gpio/consumer.txt @@ -0,0 +1,197 @@ +GPIO Descriptor Consumer Interface +================================== + +This document describes the consumer interface of the GPIO framework. Note that +it describes the new descriptor-based interface. For a description of the +deprecated integer-based GPIO interface please refer to gpio-legacy.txt. + + +Guidelines for GPIOs consumers +============================== + +Drivers that can't work without standard GPIO calls should have Kconfig entries +that depend on GPIOLIB. The functions that allow a driver to obtain and use +GPIOs are available by including the following file: + + #include <linux/gpio/consumer.h> + +All the functions that work with the descriptor-based GPIO interface are +prefixed with gpiod_. The gpio_ prefix is used for the legacy interface. No +other function in the kernel should use these prefixes. + + +Obtaining and Disposing GPIOs +============================= + +With the descriptor-based interface, GPIOs are identified with an opaque, +non-forgeable handler that must be obtained through a call to one of the +gpiod_get() functions. Like many other kernel subsystems, gpiod_get() takes the +device that will use the GPIO and the function the requested GPIO is supposed to +fulfill: + + struct gpio_desc *gpiod_get(struct device *dev, const char *con_id) + +If a function is implemented by using several GPIOs together (e.g. a simple LED +device that displays digits), an additional index argument can be specified: + + struct gpio_desc *gpiod_get_index(struct device *dev, + const char *con_id, unsigned int idx) + +Both functions return either a valid GPIO descriptor, or an error code checkable +with IS_ERR(). They will never return a NULL pointer. + +Device-managed variants of these functions are also defined: + + struct gpio_desc *devm_gpiod_get(struct device *dev, const char *con_id) + + struct gpio_desc *devm_gpiod_get_index(struct device *dev, + const char *con_id, + unsigned int idx) + +A GPIO descriptor can be disposed of using the gpiod_put() function: + + void gpiod_put(struct gpio_desc *desc) + +It is strictly forbidden to use a descriptor after calling this function. The +device-managed variant is, unsurprisingly: + + void devm_gpiod_put(struct device *dev, struct gpio_desc *desc) + + +Using GPIOs +=========== + +Setting Direction +----------------- +The first thing a driver must do with a GPIO is setting its direction. This is +done by invoking one of the gpiod_direction_*() functions: + + int gpiod_direction_input(struct gpio_desc *desc) + int gpiod_direction_output(struct gpio_desc *desc, int value) + +The return value is zero for success, else a negative errno. It should be +checked, since the get/set calls don't return errors and since misconfiguration +is possible. You should normally issue these calls from a task context. However, +for spinlock-safe GPIOs it is OK to use them before tasking is enabled, as part +of early board setup. + +For output GPIOs, the value provided becomes the initial output value. This +helps avoid signal glitching during system startup. + +A driver can also query the current direction of a GPIO: + + int gpiod_get_direction(const struct gpio_desc *desc) + +This function will return either GPIOF_DIR_IN or GPIOF_DIR_OUT. + +Be aware that there is no default direction for GPIOs. Therefore, **using a GPIO +without setting its direction first is illegal and will result in undefined +behavior!** + + +Spinlock-Safe GPIO Access +------------------------- +Most GPIO controllers can be accessed with memory read/write instructions. Those +don't need to sleep, and can safely be done from inside hard (non-threaded) IRQ +handlers and similar contexts. + +Use the following calls to access GPIOs from an atomic context: + + int gpiod_get_value(const struct gpio_desc *desc); + void gpiod_set_value(struct gpio_desc *desc, int value); + +The values are boolean, zero for low, nonzero for high. When reading the value +of an output pin, the value returned should be what's seen on the pin. That +won't always match the specified output value, because of issues including +open-drain signaling and output latencies. + +The get/set calls do not return errors because "invalid GPIO" should have been +reported earlier from gpiod_direction_*(). However, note that not all platforms +can read the value of output pins; those that can't should always return zero. +Also, using these calls for GPIOs that can't safely be accessed without sleeping +(see below) is an error. + + +GPIO Access That May Sleep +-------------------------- +Some GPIO controllers must be accessed using message based buses like I2C or +SPI. Commands to read or write those GPIO values require waiting to get to the +head of a queue to transmit a command and get its response. This requires +sleeping, which can't be done from inside IRQ handlers. + +Platforms that support this type of GPIO distinguish them from other GPIOs by +returning nonzero from this call: + + int gpiod_cansleep(const struct gpio_desc *desc) + +To access such GPIOs, a different set of accessors is defined: + + int gpiod_get_value_cansleep(const struct gpio_desc *desc) + void gpiod_set_value_cansleep(struct gpio_desc *desc, int value) + +Accessing such GPIOs requires a context which may sleep, for example a threaded +IRQ handler, and those accessors must be used instead of spinlock-safe +accessors without the cansleep() name suffix. + +Other than the fact that these accessors might sleep, and will work on GPIOs +that can't be accessed from hardIRQ handlers, these calls act the same as the +spinlock-safe calls. + + +Active-low State and Raw GPIO Values +------------------------------------ +Device drivers like to manage the logical state of a GPIO, i.e. the value their +device will actually receive, no matter what lies between it and the GPIO line. +In some cases, it might make sense to control the actual GPIO line value. The +following set of calls ignore the active-low property of a GPIO and work on the +raw line value: + + int gpiod_get_raw_value(const struct gpio_desc *desc) + void gpiod_set_raw_value(struct gpio_desc *desc, int value) + int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc) + void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value) + +The active-low state of a GPIO can also be queried using the following call: + + int gpiod_is_active_low(const struct gpio_desc *desc) + +Note that these functions should only be used with great moderation ; a driver +should not have to care about the physical line level. + +GPIOs mapped to IRQs +-------------------- +GPIO lines can quite often be used as IRQs. You can get the IRQ number +corresponding to a given GPIO using the following call: + + int gpiod_to_irq(const struct gpio_desc *desc) + +It will return an IRQ number, or an negative errno code if the mapping can't be +done (most likely because that particular GPIO cannot be used as IRQ). It is an +unchecked error to use a GPIO that wasn't set up as an input using +gpiod_direction_input(), or to use an IRQ number that didn't originally come +from gpiod_to_irq(). gpiod_to_irq() is not allowed to sleep. + +Non-error values returned from gpiod_to_irq() can be passed to request_irq() or +free_irq(). They will often be stored into IRQ resources for platform devices, +by the board-specific initialization code. Note that IRQ trigger options are +part of the IRQ interface, e.g. IRQF_TRIGGER_FALLING, as are system wakeup +capabilities. + + +Interacting With the Legacy GPIO Subsystem +========================================== +Many kernel subsystems still handle GPIOs using the legacy integer-based +interface. Although it is strongly encouraged to upgrade them to the safer +descriptor-based API, the following two functions allow you to convert a GPIO +descriptor into the GPIO integer namespace and vice-versa: + + int desc_to_gpio(const struct gpio_desc *desc) + struct gpio_desc *gpio_to_desc(unsigned gpio) + +The GPIO number returned by desc_to_gpio() can be safely used as long as the +GPIO descriptor has not been freed. All the same, a GPIO number passed to +gpio_to_desc() must have been properly acquired, and usage of the returned GPIO +descriptor is only possible after the GPIO number has been released. + +Freeing a GPIO obtained by one API with the other API is forbidden and an +unchecked error. diff --git a/Documentation/gpio/driver.txt b/Documentation/gpio/driver.txt new file mode 100644 index 0000000..9da0bfa --- /dev/null +++ b/Documentation/gpio/driver.txt @@ -0,0 +1,75 @@ +GPIO Descriptor Driver Interface +================================ + +This document serves as a guide for GPIO chip drivers writers. Note that it +describes the new descriptor-based interface. For a description of the +deprecated integer-based GPIO interface please refer to gpio-legacy.txt. + +Each GPIO controller driver needs to include the following header, which defines +the structures used to define a GPIO driver: + + #include <linux/gpio/driver.h> + + +Internal Representation of GPIOs +================================ + +Inside a GPIO driver, individual GPIOs are identified by their hardware number, +which is a unique number between 0 and n, n being the number of GPIOs managed by +the chip. This number is purely internal: the hardware number of a particular +GPIO descriptor is never made visible outside of the driver. + +On top of this internal number, each GPIO also need to have a global number in +the integer GPIO namespace so that it can be used with the legacy GPIO +interface. Each chip must thus have a "base" number (which can be automatically +assigned), and for each GPIO the global number will be (base + hardware number). +Although the integer representation is considered deprecated, it still has many +users and thus needs to be maintained. + +So for example one platform could use numbers 32-159 for GPIOs, with a +controller defining 128 GPIOs at a "base" of 32 ; while another platform uses +numbers 0..63 with one set of GPIO controllers, 64-79 with another type of GPIO +controller, and on one particular board 80-95 with an FPGA. The numbers need not +be contiguous; either of those platforms could also use numbers 2000-2063 to +identify GPIOs in a bank of I2C GPIO expanders. + + +Controller Drivers: gpio_chip +============================= + +In the gpiolib framework each GPIO controller is packaged as a "struct +gpio_chip" (see linux/gpio/driver.h for its complete definition) with members +common to each controller of that type: + + - methods to establish GPIO direction + - methods used to access GPIO values + - method to return the IRQ number associated to a given GPIO + - flag saying whether calls to its methods may sleep + - optional debugfs dump method (showing extra state like pullup config) + - optional base number (will be automatically assigned if omitted) + - label for diagnostics and GPIOs mapping using platform data + +The code implementing a gpio_chip should support multiple instances of the +controller, possibly using the driver model. That code will configure each +gpio_chip and issue gpiochip_add(). Removing a GPIO controller should be rare; +use gpiochip_remove() when it is unavoidable. + +Most often a gpio_chip is part of an instance-specific structure with state not +exposed by the GPIO interfaces, such as addressing, power management, and more. +Chips such as codecs will have complex non-GPIO state. + +Any debugfs dump method should normally ignore signals which haven't been +requested as GPIOs. They can use gpiochip_is_requested(), which returns either +NULL or the label associated with that GPIO when it was requested. + +Locking IRQ usage +----------------- +Input GPIOs can be used as IRQ signals. When this happens, a driver is requested +to mark the GPIO as being used as an IRQ: + + int gpiod_lock_as_irq(struct gpio_desc *desc) + +This will prevent the use of non-irq related GPIO APIs until the GPIO IRQ lock +is released: + + void gpiod_unlock_as_irq(struct gpio_desc *desc) diff --git a/Documentation/gpio.txt b/Documentation/gpio/gpio-legacy.txt index 6f83fa9..6f83fa9 100644 --- a/Documentation/gpio.txt +++ b/Documentation/gpio/gpio-legacy.txt diff --git a/Documentation/gpio/gpio.txt b/Documentation/gpio/gpio.txt new file mode 100644 index 0000000..cd9b356 --- /dev/null +++ b/Documentation/gpio/gpio.txt @@ -0,0 +1,119 @@ +GPIO Interfaces +=============== + +The documents in this directory give detailed instructions on how to access +GPIOs in drivers, and how to write a driver for a device that provides GPIOs +itself. + +Due to the history of GPIO interfaces in the kernel, there are two different +ways to obtain and use GPIOs: + + - The descriptor-based interface is the preferred way to manipulate GPIOs, +and is described by all the files in this directory excepted gpio-legacy.txt. + - The legacy integer-based interface which is considered deprecated (but still +usable for compatibility reasons) is documented in gpio-legacy.txt. + +The remainder of this document applies to the new descriptor-based interface. +gpio-legacy.txt contains the same information applied to the legacy +integer-based interface. + + +What is a GPIO? +=============== + +A "General Purpose Input/Output" (GPIO) is a flexible software-controlled +digital signal. They are provided from many kinds of chip, and are familiar +to Linux developers working with embedded and custom hardware. Each GPIO +represents a bit connected to a particular pin, or "ball" on Ball Grid Array +(BGA) packages. Board schematics show which external hardware connects to +which GPIOs. Drivers can be written generically, so that board setup code +passes such pin configuration data to drivers. + +System-on-Chip (SOC) processors heavily rely on GPIOs. In some cases, every +non-dedicated pin can be configured as a GPIO; and most chips have at least +several dozen of them. Programmable logic devices (like FPGAs) can easily +provide GPIOs; multifunction chips like power managers, and audio codecs +often have a few such pins to help with pin scarcity on SOCs; and there are +also "GPIO Expander" chips that connect using the I2C or SPI serial buses. +Most PC southbridges have a few dozen GPIO-capable pins (with only the BIOS +firmware knowing how they're used). + +The exact capabilities of GPIOs vary between systems. Common options: + + - Output values are writable (high=1, low=0). Some chips also have + options about how that value is driven, so that for example only one + value might be driven, supporting "wire-OR" and similar schemes for the + other value (notably, "open drain" signaling). + + - Input values are likewise readable (1, 0). Some chips support readback + of pins configured as "output", which is very useful in such "wire-OR" + cases (to support bidirectional signaling). GPIO controllers may have + input de-glitch/debounce logic, sometimes with software controls. + + - Inputs can often be used as IRQ signals, often edge triggered but + sometimes level triggered. Such IRQs may be configurable as system + wakeup events, to wake the system from a low power state. + + - Usually a GPIO will be configurable as either input or output, as needed + by different product boards; single direction ones exist too. + + - Most GPIOs can be accessed while holding spinlocks, but those accessed + through a serial bus normally can't. Some systems support both types. + +On a given board each GPIO is used for one specific purpose like monitoring +MMC/SD card insertion/removal, detecting card write-protect status, driving +a LED, configuring a transceiver, bit-banging a serial bus, poking a hardware +watchdog, sensing a switch, and so on. + + +Common GPIO Properties +====================== + +These properties are met through all the other documents of the GPIO interface +and it is useful to understand them, especially if you need to define GPIO +mappings. + +Active-High and Active-Low +-------------------------- +It is natural to assume that a GPIO is "active" when its output signal is 1 +("high"), and inactive when it is 0 ("low"). However in practice the signal of a +GPIO may be inverted before is reaches its destination, or a device could decide +to have different conventions about what "active" means. Such decisions should +be transparent to device drivers, therefore it is possible to define a GPIO as +being either active-high ("1" means "active", the default) or active-low ("0" +means "active") so that drivers only need to worry about the logical signal and +not about what happens at the line level. + +Open Drain and Open Source +-------------------------- +Sometimes shared signals need to use "open drain" (where only the low signal +level is actually driven), or "open source" (where only the high signal level is +driven) signaling. That term applies to CMOS transistors; "open collector" is +used for TTL. A pullup or pulldown resistor causes the high or low signal level. +This is sometimes called a "wire-AND"; or more practically, from the negative +logic (low=true) perspective this is a "wire-OR". + +One common example of an open drain signal is a shared active-low IRQ line. +Also, bidirectional data bus signals sometimes use open drain signals. + +Some GPIO controllers directly support open drain and open source outputs; many +don't. When you need open drain signaling but your hardware doesn't directly +support it, there's a common idiom you can use to emulate it with any GPIO pin +that can be used as either an input or an output: + + LOW: gpiod_direction_output(gpio, 0) ... this drives the signal and overrides + the pullup. + + HIGH: gpiod_direction_input(gpio) ... this turns off the output, so the pullup + (or some other device) controls the signal. + +The same logic can be applied to emulate open source signaling, by driving the +high signal and configuring the GPIO as input for low. This open drain/open +source emulation can be handled transparently by the GPIO framework. + +If you are "driving" the signal high but gpiod_get_value(gpio) reports a low +value (after the appropriate rise time passes), you know some other component is +driving the shared signal low. That's not necessarily an error. As one common +example, that's how I2C clocks are stretched: a slave that needs a slower clock +delays the rising edge of SCK, and the I2C master adjusts its signaling rate +accordingly. diff --git a/Documentation/gpio/sysfs.txt b/Documentation/gpio/sysfs.txt new file mode 100644 index 0000000..c2c3a97 --- /dev/null +++ b/Documentation/gpio/sysfs.txt @@ -0,0 +1,155 @@ +GPIO Sysfs Interface for Userspace +================================== + +Platforms which use the "gpiolib" implementors framework may choose to +configure a sysfs user interface to GPIOs. This is different from the +debugfs interface, since it provides control over GPIO direction and +value instead of just showing a gpio state summary. Plus, it could be +present on production systems without debugging support. + +Given appropriate hardware documentation for the system, userspace could +know for example that GPIO #23 controls the write protect line used to +protect boot loader segments in flash memory. System upgrade procedures +may need to temporarily remove that protection, first importing a GPIO, +then changing its output state, then updating the code before re-enabling +the write protection. In normal use, GPIO #23 would never be touched, +and the kernel would have no need to know about it. + +Again depending on appropriate hardware documentation, on some systems +userspace GPIO can be used to determine system configuration data that +standard kernels won't know about. And for some tasks, simple userspace +GPIO drivers could be all that the system really needs. + +Note that standard kernel drivers exist for common "LEDs and Buttons" +GPIO tasks: "leds-gpio" and "gpio_keys", respectively. Use those +instead of talking directly to the GPIOs; they integrate with kernel +frameworks better than your userspace code could. + + +Paths in Sysfs +-------------- +There are three kinds of entry in /sys/class/gpio: + + - Control interfaces used to get userspace control over GPIOs; + + - GPIOs themselves; and + + - GPIO controllers ("gpio_chip" instances). + +That's in addition to standard files including the "device" symlink. + +The control interfaces are write-only: + + /sys/class/gpio/ + + "export" ... Userspace may ask the kernel to export control of + a GPIO to userspace by writing its number to this file. + + Example: "echo 19 > export" will create a "gpio19" node + for GPIO #19, if that's not requested by kernel code. + + "unexport" ... Reverses the effect of exporting to userspace. + + Example: "echo 19 > unexport" will remove a "gpio19" + node exported using the "export" file. + +GPIO signals have paths like /sys/class/gpio/gpio42/ (for GPIO #42) +and have the following read/write attributes: + + /sys/class/gpio/gpioN/ + + "direction" ... reads as either "in" or "out". This value may + normally be written. Writing as "out" defaults to + initializing the value as low. To ensure glitch free + operation, values "low" and "high" may be written to + configure the GPIO as an output with that initial value. + + Note that this attribute *will not exist* if the kernel + doesn't support changing the direction of a GPIO, or + it was exported by kernel code that didn't explicitly + allow userspace to reconfigure this GPIO's direction. + + "value" ... reads as either 0 (low) or 1 (high). If the GPIO + is configured as an output, this value may be written; + any nonzero value is treated as high. + + If the pin can be configured as interrupt-generating interrupt + and if it has been configured to generate interrupts (see the + description of "edge"), you can poll(2) on that file and + poll(2) will return whenever the interrupt was triggered. If + you use poll(2), set the events POLLPRI and POLLERR. If you + use select(2), set the file descriptor in exceptfds. After + poll(2) returns, either lseek(2) to the beginning of the sysfs + file and read the new value or close the file and re-open it + to read the value. + + "edge" ... reads as either "none", "rising", "falling", or + "both". Write these strings to select the signal edge(s) + that will make poll(2) on the "value" file return. + + This file exists only if the pin can be configured as an + interrupt generating input pin. + + "active_low" ... reads as either 0 (false) or 1 (true). Write + any nonzero value to invert the value attribute both + for reading and writing. Existing and subsequent + poll(2) support configuration via the edge attribute + for "rising" and "falling" edges will follow this + setting. + +GPIO controllers have paths like /sys/class/gpio/gpiochip42/ (for the +controller implementing GPIOs starting at #42) and have the following +read-only attributes: + + /sys/class/gpio/gpiochipN/ + + "base" ... same as N, the first GPIO managed by this chip + + "label" ... provided for diagnostics (not always unique) + + "ngpio" ... how many GPIOs this manges (N to N + ngpio - 1) + +Board documentation should in most cases cover what GPIOs are used for +what purposes. However, those numbers are not always stable; GPIOs on +a daughtercard might be different depending on the base board being used, +or other cards in the stack. In such cases, you may need to use the +gpiochip nodes (possibly in conjunction with schematics) to determine +the correct GPIO number to use for a given signal. + + +Exporting from Kernel code +-------------------------- +Kernel code can explicitly manage exports of GPIOs which have already been +requested using gpio_request(): + + /* export the GPIO to userspace */ + int gpiod_export(struct gpio_desc *desc, bool direction_may_change); + + /* reverse gpio_export() */ + void gpiod_unexport(struct gpio_desc *desc); + + /* create a sysfs link to an exported GPIO node */ + int gpiod_export_link(struct device *dev, const char *name, + struct gpio_desc *desc); + + /* change the polarity of a GPIO node in sysfs */ + int gpiod_sysfs_set_active_low(struct gpio_desc *desc, int value); + +After a kernel driver requests a GPIO, it may only be made available in +the sysfs interface by gpiod_export(). The driver can control whether the +signal direction may change. This helps drivers prevent userspace code +from accidentally clobbering important system state. + +This explicit exporting can help with debugging (by making some kinds +of experiments easier), or can provide an always-there interface that's +suitable for documenting as part of a board support package. + +After the GPIO has been exported, gpiod_export_link() allows creating +symlinks from elsewhere in sysfs to the GPIO sysfs node. Drivers can +use this to provide the interface under their own device in sysfs with +a descriptive name. + +Drivers can use gpiod_sysfs_set_active_low() to hide GPIO line polarity +differences between boards from user space. Polarity change can be done both +before and after gpiod_export(), and previously enabled poll(2) support for +either rising or falling edge will be reconfigured to follow this setting. diff --git a/MAINTAINERS b/MAINTAINERS index f216db8..4afcfb4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4049,6 +4049,12 @@ W: http://www.pharscape.org S: Maintained F: drivers/net/usb/hso.c +HSR NETWORK PROTOCOL +M: Arvid Brodin <arvid.brodin@alten.se> +L: netdev@vger.kernel.org +S: Maintained +F: net/hsr/ + HTCPEN TOUCHSCREEN DRIVER M: Pau Oliva Fora <pof@eslack.org> L: linux-input@vger.kernel.org @@ -5261,7 +5267,7 @@ S: Maintained F: Documentation/lockdep*.txt F: Documentation/lockstat.txt F: include/linux/lockdep.h -F: kernel/lockdep* +F: kernel/locking/ LOGICAL DISK MANAGER SUPPORT (LDM, Windows 2000/XP/Vista Dynamic Disks) M: "Richard Russon (FlatCap)" <ldm@flatcap.org> @@ -7385,7 +7391,6 @@ S: Maintained F: kernel/sched/ F: include/linux/sched.h F: include/uapi/linux/sched.h -F: kernel/wait.c F: include/linux/wait.h SCORE ARCHITECTURE @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 13 SUBLEVEL = 0 -EXTRAVERSION = -rc1 +EXTRAVERSION = -rc2 NAME = One Giant Leap for Frogkind # *DOCUMENTATION* diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi index 1e12aef..aa537ed 100644 --- a/arch/arm/boot/dts/bcm2835.dtsi +++ b/arch/arm/boot/dts/bcm2835.dtsi @@ -85,6 +85,8 @@ reg = <0x7e205000 0x1000>; interrupts = <2 21>; clocks = <&clk_i2c>; + #address-cells = <1>; + #size-cells = <0>; status = "disabled"; }; @@ -93,6 +95,8 @@ reg = <0x7e804000 0x1000>; interrupts = <2 21>; clocks = <&clk_i2c>; + #address-cells = <1>; + #size-cells = <0>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/cros5250-common.dtsi b/arch/arm/boot/dts/cros5250-common.dtsi index dc259e8b..9b186ac 100644 --- a/arch/arm/boot/dts/cros5250-common.dtsi +++ b/arch/arm/boot/dts/cros5250-common.dtsi @@ -27,6 +27,13 @@ i2c2_bus: i2c2-bus { samsung,pin-pud = <0>; }; + + max77686_irq: max77686-irq { + samsung,pins = "gpx3-2"; + samsung,pin-function = <0>; + samsung,pin-pud = <0>; + samsung,pin-drv = <0>; + }; }; i2c@12C60000 { @@ -35,6 +42,11 @@ max77686@09 { compatible = "maxim,max77686"; + interrupt-parent = <&gpx3>; + interrupts = <2 0>; + pinctrl-names = "default"; + pinctrl-0 = <&max77686_irq>; + wakeup-source; reg = <0x09>; voltage-regulators { diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi index 59154dc..fb28b2e 100644 --- a/arch/arm/boot/dts/imx6qdl.dtsi +++ b/arch/arm/boot/dts/imx6qdl.dtsi @@ -161,7 +161,7 @@ clocks = <&clks 197>, <&clks 3>, <&clks 197>, <&clks 107>, <&clks 0>, <&clks 118>, - <&clks 62>, <&clks 139>, + <&clks 0>, <&clks 139>, <&clks 0>; clock-names = "core", "rxtx0", "rxtx1", "rxtx2", diff --git a/arch/arm/boot/dts/omap-zoom-common.dtsi b/arch/arm/boot/dts/omap-zoom-common.dtsi index b0ee342..68221fa 100644 --- a/arch/arm/boot/dts/omap-zoom-common.dtsi +++ b/arch/arm/boot/dts/omap-zoom-common.dtsi @@ -13,7 +13,7 @@ * they probably share the same GPIO IRQ * REVISIT: Add timing support from slls644g.pdf */ - 8250@3,0 { + uart@3,0 { compatible = "ns16550a"; reg = <3 0 0x100>; bank-width = <2>; diff --git a/arch/arm/boot/dts/omap2.dtsi b/arch/arm/boot/dts/omap2.dtsi index a2bfcde..d0c5b37 100644 --- a/arch/arm/boot/dts/omap2.dtsi +++ b/arch/arm/boot/dts/omap2.dtsi @@ -9,6 +9,7 @@ */ #include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interrupt-controller/irq.h> #include <dt-bindings/pinctrl/omap.h> #include "skeleton.dtsi" @@ -21,6 +22,8 @@ serial0 = &uart1; serial1 = &uart2; serial2 = &uart3; + i2c0 = &i2c1; + i2c1 = &i2c2; }; cpus { @@ -53,6 +56,28 @@ ranges; ti,hwmods = "l3_main"; + aes: aes@480a6000 { + compatible = "ti,omap2-aes"; + ti,hwmods = "aes"; + reg = <0x480a6000 0x50>; + dmas = <&sdma 9 &sdma 10>; + dma-names = "tx", "rx"; + }; + + hdq1w: 1w@480b2000 { + compatible = "ti,omap2420-1w"; + ti,hwmods = "hdq1w"; + reg = <0x480b2000 0x1000>; + interrupts = <58>; + }; + + mailbox: mailbox@48094000 { + compatible = "ti,omap2-mailbox"; + ti,hwmods = "mailbox"; + reg = <0x48094000 0x200>; + interrupts = <26>; + }; + intc: interrupt-controller@1 { compatible = "ti,omap2-intc"; interrupt-controller; @@ -63,6 +88,7 @@ sdma: dma-controller@48056000 { compatible = "ti,omap2430-sdma", "ti,omap2420-sdma"; + ti,hwmods = "dma"; reg = <0x48056000 0x1000>; interrupts = <12>, <13>, @@ -73,21 +99,91 @@ #dma-requests = <64>; }; + i2c1: i2c@48070000 { + compatible = "ti,omap2-i2c"; + ti,hwmods = "i2c1"; + reg = <0x48070000 0x80>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = <56>; + dmas = <&sdma 27 &sdma 28>; + dma-names = "tx", "rx"; + }; + + i2c2: i2c@48072000 { + compatible = "ti,omap2-i2c"; + ti,hwmods = "i2c2"; + reg = <0x48072000 0x80>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = <57>; + dmas = <&sdma 29 &sdma 30>; + dma-names = "tx", "rx"; + }; + + mcspi1: mcspi@48098000 { + compatible = "ti,omap2-mcspi"; + ti,hwmods = "mcspi1"; + reg = <0x48098000 0x100>; + interrupts = <65>; + dmas = <&sdma 35 &sdma 36 &sdma 37 &sdma 38 + &sdma 39 &sdma 40 &sdma 41 &sdma 42>; + dma-names = "tx0", "rx0", "tx1", "rx1", + "tx2", "rx2", "tx3", "rx3"; + }; + + mcspi2: mcspi@4809a000 { + compatible = "ti,omap2-mcspi"; + ti,hwmods = "mcspi2"; + reg = <0x4809a000 0x100>; + interrupts = <66>; + dmas = <&sdma 43 &sdma 44 &sdma 45 &sdma 46>; + dma-names = "tx0", "rx0", "tx1", "rx1"; + }; + + rng: rng@480a0000 { + compatible = "ti,omap2-rng"; + ti,hwmods = "rng"; + reg = <0x480a0000 0x50>; + interrupts = <36>; + }; + + sham: sham@480a4000 { + compatible = "ti,omap2-sham"; + ti,hwmods = "sham"; + reg = <0x480a4000 0x64>; + interrupts = <51>; + dmas = <&sdma 13>; + dma-names = "rx"; + }; + uart1: serial@4806a000 { compatible = "ti,omap2-uart"; ti,hwmods = "uart1"; + reg = <0x4806a000 0x2000>; + interrupts = <72>; + dmas = <&sdma 49 &sdma 50>; + dma-names = "tx", "rx"; clock-frequency = <48000000>; }; uart2: serial@4806c000 { compatible = "ti,omap2-uart"; ti,hwmods = "uart2"; + reg = <0x4806c000 0x400>; + interrupts = <73>; + dmas = <&sdma 51 &sdma 52>; + dma-names = "tx", "rx"; clock-frequency = <48000000>; }; uart3: serial@4806e000 { compatible = "ti,omap2-uart"; ti,hwmods = "uart3"; + reg = <0x4806e000 0x400>; + interrupts = <74>; + dmas = <&sdma 53 &sdma 54>; + dma-names = "tx", "rx"; clock-frequency = <48000000>; }; diff --git a/arch/arm/boot/dts/omap2420.dtsi b/arch/arm/boot/dts/omap2420.dtsi index c8f9c55..60c605d 100644 --- a/arch/arm/boot/dts/omap2420.dtsi +++ b/arch/arm/boot/dts/omap2420.dtsi @@ -114,6 +114,15 @@ dma-names = "tx", "rx"; }; + msdi1: mmc@4809c000 { + compatible = "ti,omap2420-mmc"; + ti,hwmods = "msdi1"; + reg = <0x4809c000 0x80>; + interrupts = <83>; + dmas = <&sdma 61 &sdma 62>; + dma-names = "tx", "rx"; + }; + timer1: timer@48028000 { compatible = "ti,omap2420-timer"; reg = <0x48028000 0x400>; @@ -121,5 +130,19 @@ ti,hwmods = "timer1"; ti,timer-alwon; }; + + wd_timer2: wdt@48022000 { + compatible = "ti,omap2-wdt"; + ti,hwmods = "wd_timer2"; + reg = <0x48022000 0x80>; + }; }; }; + +&i2c1 { + compatible = "ti,omap2420-i2c"; +}; + +&i2c2 { + compatible = "ti,omap2420-i2c"; +}; diff --git a/arch/arm/boot/dts/omap2430.dtsi b/arch/arm/boot/dts/omap2430.dtsi index c535a5a..d624345 100644 --- a/arch/arm/boot/dts/omap2430.dtsi +++ b/arch/arm/boot/dts/omap2430.dtsi @@ -175,6 +175,25 @@ dma-names = "tx", "rx"; }; + mmc1: mmc@4809c000 { + compatible = "ti,omap2-hsmmc"; + reg = <0x4809c000 0x200>; + interrupts = <83>; + ti,hwmods = "mmc1"; + ti,dual-volt; + dmas = <&sdma 61>, <&sdma 62>; + dma-names = "tx", "rx"; + }; + + mmc2: mmc@480b4000 { + compatible = "ti,omap2-hsmmc"; + reg = <0x480b4000 0x200>; + interrupts = <86>; + ti,hwmods = "mmc2"; + dmas = <&sdma 47>, <&sdma 48>; + dma-names = "tx", "rx"; + }; + timer1: timer@49018000 { compatible = "ti,omap2420-timer"; reg = <0x49018000 0x400>; @@ -182,5 +201,35 @@ ti,hwmods = "timer1"; ti,timer-alwon; }; + + mcspi3: mcspi@480b8000 { + compatible = "ti,omap2-mcspi"; + ti,hwmods = "mcspi3"; + reg = <0x480b8000 0x100>; + interrupts = <91>; + dmas = <&sdma 15 &sdma 16 &sdma 23 &sdma 24>; + dma-names = "tx0", "rx0", "tx1", "rx1"; + }; + + usb_otg_hs: usb_otg_hs@480ac000 { + compatible = "ti,omap2-musb"; + ti,hwmods = "usb_otg_hs"; + reg = <0x480ac000 0x1000>; + interrupts = <93>; + }; + + wd_timer2: wdt@49016000 { + compatible = "ti,omap2-wdt"; + ti,hwmods = "wd_timer2"; + reg = <0x49016000 0x80>; + }; }; }; + +&i2c1 { + compatible = "ti,omap2430-i2c"; +}; + +&i2c2 { + compatible = "ti,omap2430-i2c"; +}; diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h index be956db..1571d12 100644 --- a/arch/arm/include/asm/pgtable.h +++ b/arch/arm/include/asm/pgtable.h @@ -61,7 +61,7 @@ extern void __pgd_error(const char *file, int line, pgd_t); * mapping to be mapped at. This is particularly important for * non-high vector CPUs. */ -#define FIRST_USER_ADDRESS PAGE_SIZE +#define FIRST_USER_ADDRESS (PAGE_SIZE * 2) /* * Use TASK_SIZE as the ceiling argument for free_pgtables() and diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index 57221e3..f0d180d 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -14,11 +14,12 @@ #include <asm/pgalloc.h> #include <asm/mmu_context.h> #include <asm/cacheflush.h> +#include <asm/fncpy.h> #include <asm/mach-types.h> #include <asm/smp_plat.h> #include <asm/system_misc.h> -extern const unsigned char relocate_new_kernel[]; +extern void relocate_new_kernel(void); extern const unsigned int relocate_new_kernel_size; extern unsigned long kexec_start_address; @@ -142,6 +143,8 @@ void machine_kexec(struct kimage *image) { unsigned long page_list; unsigned long reboot_code_buffer_phys; + unsigned long reboot_entry = (unsigned long)relocate_new_kernel; + unsigned long reboot_entry_phys; void *reboot_code_buffer; /* @@ -168,16 +171,16 @@ void machine_kexec(struct kimage *image) /* copy our kernel relocation code to the control code page */ - memcpy(reboot_code_buffer, - relocate_new_kernel, relocate_new_kernel_size); + reboot_entry = fncpy(reboot_code_buffer, + reboot_entry, + relocate_new_kernel_size); + reboot_entry_phys = (unsigned long)reboot_entry + + (reboot_code_buffer_phys - (unsigned long)reboot_code_buffer); - - flush_icache_range((unsigned long) reboot_code_buffer, - (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); printk(KERN_INFO "Bye!\n"); if (kexec_reinit) kexec_reinit(); - soft_restart(reboot_code_buffer_phys); + soft_restart(reboot_entry_phys); } diff --git a/arch/arm/kernel/relocate_kernel.S b/arch/arm/kernel/relocate_kernel.S index d0cdedf..9585896 100644 --- a/arch/arm/kernel/relocate_kernel.S +++ b/arch/arm/kernel/relocate_kernel.S @@ -2,10 +2,12 @@ * relocate_kernel.S - put the kernel image in place to boot */ +#include <linux/linkage.h> #include <asm/kexec.h> - .globl relocate_new_kernel -relocate_new_kernel: + .align 3 /* not needed for this code, but keeps fncpy() happy */ + +ENTRY(relocate_new_kernel) ldr r0,kexec_indirection_page ldr r1,kexec_start_address @@ -79,6 +81,8 @@ kexec_mach_type: kexec_boot_atags: .long 0x0 +ENDPROC(relocate_new_kernel) + relocate_new_kernel_end: .globl relocate_new_kernel_size diff --git a/arch/arm/kernel/sigreturn_codes.S b/arch/arm/kernel/sigreturn_codes.S index 3c5d0f2..b84d0cb 100644 --- a/arch/arm/kernel/sigreturn_codes.S +++ b/arch/arm/kernel/sigreturn_codes.S @@ -30,6 +30,27 @@ * snippets. */ +/* + * In CPU_THUMBONLY case kernel arm opcodes are not allowed. + * Note in this case codes skips those instructions but it uses .org + * directive to keep correct layout of sigreturn_codes array. + */ +#ifndef CONFIG_CPU_THUMBONLY +#define ARM_OK(code...) code +#else +#define ARM_OK(code...) +#endif + + .macro arm_slot n + .org sigreturn_codes + 12 * (\n) +ARM_OK( .arm ) + .endm + + .macro thumb_slot n + .org sigreturn_codes + 12 * (\n) + 8 + .thumb + .endm + #if __LINUX_ARM_ARCH__ <= 4 /* * Note we manually set minimally required arch that supports @@ -45,26 +66,27 @@ .global sigreturn_codes .type sigreturn_codes, #object - .arm + .align sigreturn_codes: /* ARM sigreturn syscall code snippet */ - mov r7, #(__NR_sigreturn - __NR_SYSCALL_BASE) - swi #(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE) + arm_slot 0 +ARM_OK( mov r7, #(__NR_sigreturn - __NR_SYSCALL_BASE) ) +ARM_OK( swi #(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE) ) /* Thumb sigreturn syscall code snippet */ - .thumb + thumb_slot 0 movs r7, #(__NR_sigreturn - __NR_SYSCALL_BASE) swi #0 /* ARM sigreturn_rt syscall code snippet */ - .arm - mov r7, #(__NR_rt_sigreturn - __NR_SYSCALL_BASE) - swi #(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE) + arm_slot 1 +ARM_OK( mov r7, #(__NR_rt_sigreturn - __NR_SYSCALL_BASE) ) +ARM_OK( swi #(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE) ) /* Thumb sigreturn_rt syscall code snippet */ - .thumb + thumb_slot 1 movs r7, #(__NR_rt_sigreturn - __NR_SYSCALL_BASE) swi #0 @@ -74,7 +96,7 @@ sigreturn_codes: * it is thumb case or not, so we need additional * word after real last entry. */ - .arm + arm_slot 2 .space 4 .size sigreturn_codes, . - sigreturn_codes diff --git a/arch/arm/lib/delay-loop.S b/arch/arm/lib/delay-loop.S index 36b668d..bc1033b 100644 --- a/arch/arm/lib/delay-loop.S +++ b/arch/arm/lib/delay-loop.S @@ -40,6 +40,7 @@ ENTRY(__loop_const_udelay) @ 0 <= r0 <= 0x7fffff06 /* * loops = r0 * HZ * loops_per_jiffy / 1000000 */ + .align 3 @ Delay routine ENTRY(__loop_delay) diff --git a/arch/arm/mach-at91/at91rm9200_time.c b/arch/arm/mach-at91/at91rm9200_time.c index f607deb..bc7b363 100644 --- a/arch/arm/mach-at91/at91rm9200_time.c +++ b/arch/arm/mach-at91/at91rm9200_time.c @@ -174,7 +174,6 @@ clkevt32k_next_event(unsigned long delta, struct clock_event_device *dev) static struct clock_event_device clkevt = { .name = "at91_tick", .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, - .shift = 32, .rating = 150, .set_next_event = clkevt32k_next_event, .set_mode = clkevt32k_mode, @@ -265,11 +264,9 @@ void __init at91rm9200_timer_init(void) at91_st_write(AT91_ST_RTMR, 1); /* Setup timer clockevent, with minimum of two ticks (important!!) */ - clkevt.mult = div_sc(AT91_SLOW_CLOCK, NSEC_PER_SEC, clkevt.shift); - clkevt.max_delta_ns = clockevent_delta2ns(AT91_ST_ALMV, &clkevt); - clkevt.min_delta_ns = clockevent_delta2ns(2, &clkevt) + 1; clkevt.cpumask = cpumask_of(0); - clockevents_register_device(&clkevt); + clockevents_config_and_register(&clkevt, AT91_SLOW_CLOCK, + 2, AT91_ST_ALMV); /* register clocksource */ clocksource_register_hz(&clk32k, AT91_SLOW_CLOCK); diff --git a/arch/arm/mach-footbridge/common.c b/arch/arm/mach-footbridge/common.c index 2739ca2..e009168 100644 --- a/arch/arm/mach-footbridge/common.c +++ b/arch/arm/mach-footbridge/common.c @@ -15,6 +15,7 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/spinlock.h> +#include <video/vga.h> #include <asm/pgtable.h> #include <asm/page.h> @@ -196,6 +197,8 @@ void __init footbridge_map_io(void) iotable_init(ebsa285_host_io_desc, ARRAY_SIZE(ebsa285_host_io_desc)); pci_map_io_early(__phys_to_pfn(DC21285_PCI_IO)); } + + vga_base = PCIMEM_BASE; } void footbridge_restart(enum reboot_mode mode, const char *cmd) diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c index 3490a24..7c2fdae 100644 --- a/arch/arm/mach-footbridge/dc21285.c +++ b/arch/arm/mach-footbridge/dc21285.c @@ -18,7 +18,6 @@ #include <linux/irq.h> #include <linux/io.h> #include <linux/spinlock.h> -#include <video/vga.h> #include <asm/irq.h> #include <asm/mach/pci.h> @@ -291,7 +290,6 @@ void __init dc21285_preinit(void) int cfn_mode; pcibios_min_mem = 0x81000000; - vga_base = PCIMEM_BASE; mem_size = (unsigned int)high_memory - PAGE_OFFSET; for (mem_mask = 0x00100000; mem_mask < 0x10000000; mem_mask <<= 1) diff --git a/arch/arm/mach-footbridge/ebsa285.c b/arch/arm/mach-footbridge/ebsa285.c index b082435..1a7235f 100644 --- a/arch/arm/mach-footbridge/ebsa285.c +++ b/arch/arm/mach-footbridge/ebsa285.c @@ -30,21 +30,24 @@ static const struct { const char *name; const char *trigger; } ebsa285_leds[] = { - { "ebsa285:amber", "heartbeat", }, - { "ebsa285:green", "cpu0", }, + { "ebsa285:amber", "cpu0", }, + { "ebsa285:green", "heartbeat", }, { "ebsa285:red",}, }; +static unsigned char hw_led_state; + static void ebsa285_led_set(struct led_classdev *cdev, enum led_brightness b) { struct ebsa285_led *led = container_of(cdev, struct ebsa285_led, cdev); - if (b != LED_OFF) - *XBUS_LEDS |= led->mask; + if (b == LED_OFF) + hw_led_state |= led->mask; else - *XBUS_LEDS &= ~led->mask; + hw_led_state &= ~led->mask; + *XBUS_LEDS = hw_led_state; } static enum led_brightness ebsa285_led_get(struct led_classdev *cdev) @@ -52,18 +55,19 @@ static enum led_brightness ebsa285_led_get(struct led_classdev *cdev) struct ebsa285_led *led = container_of(cdev, struct ebsa285_led, cdev); - return (*XBUS_LEDS & led->mask) ? LED_FULL : LED_OFF; + return hw_led_state & led->mask ? LED_OFF : LED_FULL; } static int __init ebsa285_leds_init(void) { int i; - if (machine_is_ebsa285()) + if (!machine_is_ebsa285()) return -ENODEV; - /* 3 LEDS All ON */ - *XBUS_LEDS |= XBUS_LED_AMBER | XBUS_LED_GREEN | XBUS_LED_RED; + /* 3 LEDS all off */ + hw_led_state = XBUS_LED_AMBER | XBUS_LED_GREEN | XBUS_LED_RED; + *XBUS_LEDS = hw_led_state; for (i = 0; i < ARRAY_SIZE(ebsa285_leds); i++) { struct ebsa285_led *led; diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 1f25f3e..adcef40 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -19,11 +19,11 @@ secure-common = omap-smc.o omap-secure.o obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common) obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(hwmod-common) $(secure-common) -obj-$(CONFIG_ARCH_OMAP4) += prm44xx.o $(hwmod-common) $(secure-common) +obj-$(CONFIG_ARCH_OMAP4) += $(hwmod-common) $(secure-common) obj-$(CONFIG_SOC_AM33XX) += irq.o $(hwmod-common) -obj-$(CONFIG_SOC_OMAP5) += prm44xx.o $(hwmod-common) $(secure-common) +obj-$(CONFIG_SOC_OMAP5) += $(hwmod-common) $(secure-common) obj-$(CONFIG_SOC_AM43XX) += $(hwmod-common) $(secure-common) -obj-$(CONFIG_SOC_DRA7XX) += prm44xx.o $(hwmod-common) $(secure-common) +obj-$(CONFIG_SOC_DRA7XX) += $(hwmod-common) $(secure-common) ifneq ($(CONFIG_SND_OMAP_SOC_MCBSP),) obj-y += mcbsp.o diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h index f7644fe..e30ef67 100644 --- a/arch/arm/mach-omap2/common.h +++ b/arch/arm/mach-omap2/common.h @@ -299,7 +299,6 @@ struct omap_sdrc_params; extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0, struct omap_sdrc_params *sdrc_cs1); struct omap2_hsmmc_info; -extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers); extern void omap_reserve(void); struct omap_hwmod; diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index a4e536b..58347bb 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -32,7 +32,6 @@ #include "soc.h" #include "iomap.h" -#include "mux.h" #include "control.h" #include "display.h" #include "prm.h" @@ -102,90 +101,13 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initconst = { { "dss_hdmi", "omapdss_hdmi", -1 }, }; -static void __init omap4_tpd12s015_mux_pads(void) -{ - omap_mux_init_signal("hdmi_cec", - OMAP_PIN_INPUT_PULLUP); - omap_mux_init_signal("hdmi_ddc_scl", - OMAP_PIN_INPUT_PULLUP); - omap_mux_init_signal("hdmi_ddc_sda", - OMAP_PIN_INPUT_PULLUP); -} - -static void __init omap4_hdmi_mux_pads(enum omap_hdmi_flags flags) -{ - u32 reg; - u16 control_i2c_1; - - /* - * CONTROL_I2C_1: HDMI_DDC_SDA_PULLUPRESX (bit 28) and - * HDMI_DDC_SCL_PULLUPRESX (bit 24) are set to disable - * internal pull up resistor. - */ - if (flags & OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP) { - control_i2c_1 = OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_I2C_1; - reg = omap4_ctrl_pad_readl(control_i2c_1); - reg |= (OMAP4_HDMI_DDC_SDA_PULLUPRESX_MASK | - OMAP4_HDMI_DDC_SCL_PULLUPRESX_MASK); - omap4_ctrl_pad_writel(reg, control_i2c_1); - } -} - -static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes) -{ - u32 enable_mask, enable_shift; - u32 pipd_mask, pipd_shift; - u32 reg; - - if (dsi_id == 0) { - enable_mask = OMAP4_DSI1_LANEENABLE_MASK; - enable_shift = OMAP4_DSI1_LANEENABLE_SHIFT; - pipd_mask = OMAP4_DSI1_PIPD_MASK; - pipd_shift = OMAP4_DSI1_PIPD_SHIFT; - } else if (dsi_id == 1) { - enable_mask = OMAP4_DSI2_LANEENABLE_MASK; - enable_shift = OMAP4_DSI2_LANEENABLE_SHIFT; - pipd_mask = OMAP4_DSI2_PIPD_MASK; - pipd_shift = OMAP4_DSI2_PIPD_SHIFT; - } else { - return -ENODEV; - } - - reg = omap4_ctrl_pad_readl(OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY); - - reg &= ~enable_mask; - reg &= ~pipd_mask; - - reg |= (lanes << enable_shift) & enable_mask; - reg |= (lanes << pipd_shift) & pipd_mask; - - omap4_ctrl_pad_writel(reg, OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY); - - return 0; -} - -int __init omap_hdmi_init(enum omap_hdmi_flags flags) -{ - if (cpu_is_omap44xx()) { - omap4_hdmi_mux_pads(flags); - omap4_tpd12s015_mux_pads(); - } - - return 0; -} - static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask) { - if (cpu_is_omap44xx()) - return omap4_dsi_mux_pads(dsi_id, lane_mask); - return 0; } static void omap_dsi_disable_pads(int dsi_id, unsigned lane_mask) { - if (cpu_is_omap44xx()) - omap4_dsi_mux_pads(dsi_id, 0); } static int omap_dss_set_min_bus_tput(struct device *dev, unsigned long tput) diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 81de562..d24926e 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -1502,6 +1502,22 @@ static int gpmc_probe_generic_child(struct platform_device *pdev, } /* + * For some GPMC devices we still need to rely on the bootloader + * timings because the devices can be connected via FPGA. So far + * the list is smc91x on the omap2 SDP boards, and 8250 on zooms. + * REVISIT: Add timing support from slls644g.pdf and from the + * lan91c96 manual. + */ + if (of_device_is_compatible(child, "ns16550a") || + of_device_is_compatible(child, "smsc,lan91c94") || + of_device_is_compatible(child, "smsc,lan91c111")) { + dev_warn(&pdev->dev, + "%s using bootloader timings on CS%d\n", + child->name, cs); + goto no_timings; + } + + /* * FIXME: gpmc_cs_request() will map the CS to an arbitary * location in the gpmc address space. When booting with * device-tree we want the NOR flash to be mapped to the @@ -1529,6 +1545,7 @@ static int gpmc_probe_generic_child(struct platform_device *pdev, gpmc_read_timings_dt(child, &gpmc_t); gpmc_cs_set_timings(cs, &gpmc_t); +no_timings: if (of_platform_device_create(child, NULL, &pdev->dev)) return 0; @@ -1541,42 +1558,6 @@ err: return ret; } -/* - * REVISIT: Add timing support from slls644g.pdf - */ -static int gpmc_probe_8250(struct platform_device *pdev, - struct device_node *child) -{ - struct resource res; - unsigned long base; - int ret, cs; - - if (of_property_read_u32(child, "reg", &cs) < 0) { - dev_err(&pdev->dev, "%s has no 'reg' property\n", - child->full_name); - return -ENODEV; - } - - if (of_address_to_resource(child, 0, &res) < 0) { - dev_err(&pdev->dev, "%s has malformed 'reg' property\n", - child->full_name); - return -ENODEV; - } - - ret = gpmc_cs_request(cs, resource_size(&res), &base); - if (ret < 0) { - dev_err(&pdev->dev, "cannot request GPMC CS %d\n", cs); - return ret; - } - - if (of_platform_device_create(child, NULL, &pdev->dev)) - return 0; - - dev_err(&pdev->dev, "failed to create gpmc child %s\n", child->name); - - return -ENODEV; -} - static int gpmc_probe_dt(struct platform_device *pdev) { int ret; @@ -1618,10 +1599,9 @@ static int gpmc_probe_dt(struct platform_device *pdev) else if (of_node_cmp(child->name, "onenand") == 0) ret = gpmc_probe_onenand_child(pdev, child); else if (of_node_cmp(child->name, "ethernet") == 0 || - of_node_cmp(child->name, "nor") == 0) + of_node_cmp(child->name, "nor") == 0 || + of_node_cmp(child->name, "uart") == 0) ret = gpmc_probe_generic_child(pdev, child); - else if (of_node_cmp(child->name, "8250") == 0) - ret = gpmc_probe_8250(pdev, child); if (WARN(ret < 0, "%s: probing gpmc child %s failed\n", __func__, child->full_name)) diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h index 8cc7d33..3e97c6c 100644 --- a/arch/arm/mach-omap2/omap-secure.h +++ b/arch/arm/mach-omap2/omap-secure.h @@ -76,6 +76,13 @@ static inline void omap_barrier_reserve_memblock(void) { } #endif +#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER void set_cntfreq(void); +#else +static inline void set_cntfreq(void) +{ +} +#endif + #endif /* __ASSEMBLER__ */ #endif /* OMAP_ARCH_OMAP_SECURE_H */ diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c index 5791143..b39efd4 100644 --- a/arch/arm/mach-omap2/omap4-common.c +++ b/arch/arm/mach-omap2/omap4-common.c @@ -35,7 +35,6 @@ #include "iomap.h" #include "common.h" #include "mmc.h" -#include "hsmmc.h" #include "prminst44xx.h" #include "prcm_mpu44xx.h" #include "omap4-sar-layout.h" @@ -284,59 +283,3 @@ skip_errata_init: omap_wakeupgen_init(); irqchip_init(); } - -#if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE) -static int omap4_twl6030_hsmmc_late_init(struct device *dev) -{ - int irq = 0; - struct platform_device *pdev = container_of(dev, - struct platform_device, dev); - struct omap_mmc_platform_data *pdata = dev->platform_data; - - /* Setting MMC1 Card detect Irq */ - if (pdev->id == 0) { - irq = twl6030_mmc_card_detect_config(); - if (irq < 0) { - dev_err(dev, "%s: Error card detect config(%d)\n", - __func__, irq); - return irq; - } - pdata->slots[0].card_detect_irq = irq; - pdata->slots[0].card_detect = twl6030_mmc_card_detect; - } - return 0; -} - -static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev) -{ - struct omap_mmc_platform_data *pdata; - - /* dev can be null if CONFIG_MMC_OMAP_HS is not set */ - if (!dev) { - pr_err("Failed %s\n", __func__); - return; - } - pdata = dev->platform_data; - pdata->init = omap4_twl6030_hsmmc_late_init; -} - -int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers) -{ - struct omap2_hsmmc_info *c; - - omap_hsmmc_init(controllers); - for (c = controllers; c->mmc; c++) { - /* pdev can be null if CONFIG_MMC_OMAP_HS is not set */ - if (!c->pdev) - continue; - omap4_twl6030_hsmmc_set_late_init(&c->pdev->dev); - } - - return 0; -} -#else -int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers) -{ - return 0; -} -#endif diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 93b80e5..1f3770a 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -120,7 +120,7 @@ static void omap3_save_secure_ram_context(void) * will hang the system. */ pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON); - ret = _omap_save_secure_sram((u32 *) + ret = _omap_save_secure_sram((u32 *)(unsigned long) __pa(omap3_secure_ram_storage)); pwrdm_set_next_pwrst(mpu_pwrdm, mpu_next_state); /* Following is for error tracking, it should not happen */ diff --git a/arch/arm/mach-omap2/prm44xx_54xx.h b/arch/arm/mach-omap2/prm44xx_54xx.h index 7a97606..8d95aa5 100644 --- a/arch/arm/mach-omap2/prm44xx_54xx.h +++ b/arch/arm/mach-omap2/prm44xx_54xx.h @@ -43,7 +43,7 @@ extern void omap4_prm_vcvp_write(u32 val, u8 offset); extern u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset); #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \ - defined(CONFIG_SOC_DRA7XX) + defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM43XX) void omap44xx_prm_reconfigure_io_chain(void); #else static inline void omap44xx_prm_reconfigure_io_chain(void) diff --git a/arch/arm/mach-vexpress/spc.c b/arch/arm/mach-vexpress/spc.c index 033d34d..c26ef5b 100644 --- a/arch/arm/mach-vexpress/spc.c +++ b/arch/arm/mach-vexpress/spc.c @@ -53,6 +53,11 @@ #define A15_BX_ADDR0 0x68 #define A7_BX_ADDR0 0x78 +/* SPC CPU/cluster reset statue */ +#define STANDBYWFI_STAT 0x3c +#define STANDBYWFI_STAT_A15_CPU_MASK(cpu) (1 << (cpu)) +#define STANDBYWFI_STAT_A7_CPU_MASK(cpu) (1 << (3 + (cpu))) + /* SPC system config interface registers */ #define SYSCFG_WDATA 0x70 #define SYSCFG_RDATA 0x74 @@ -213,6 +218,41 @@ void ve_spc_powerdown(u32 cluster, bool enable) writel_relaxed(enable, info->baseaddr + pwdrn_reg); } +static u32 standbywfi_cpu_mask(u32 cpu, u32 cluster) +{ + return cluster_is_a15(cluster) ? + STANDBYWFI_STAT_A15_CPU_MASK(cpu) + : STANDBYWFI_STAT_A7_CPU_MASK(cpu); +} + +/** + * ve_spc_cpu_in_wfi(u32 cpu, u32 cluster) + * + * @cpu: mpidr[7:0] bitfield describing CPU affinity level within cluster + * @cluster: mpidr[15:8] bitfield describing cluster affinity level + * + * @return: non-zero if and only if the specified CPU is in WFI + * + * Take care when interpreting the result of this function: a CPU might + * be in WFI temporarily due to idle, and is not necessarily safely + * parked. + */ +int ve_spc_cpu_in_wfi(u32 cpu, u32 cluster) +{ + int ret; + u32 mask = standbywfi_cpu_mask(cpu, cluster); + + if (cluster >= MAX_CLUSTERS) + return 1; + + ret = readl_relaxed(info->baseaddr + STANDBYWFI_STAT); + + pr_debug("%s: PCFGREG[0x%X] = 0x%08X, mask = 0x%X\n", + __func__, STANDBYWFI_STAT, ret, mask); + + return ret & mask; +} + static int ve_spc_get_performance(int cluster, u32 *freq) { struct ve_spc_opp *opps = info->opps[cluster]; diff --git a/arch/arm/mach-vexpress/spc.h b/arch/arm/mach-vexpress/spc.h index dbd44c3..793d065 100644 --- a/arch/arm/mach-vexpress/spc.h +++ b/arch/arm/mach-vexpress/spc.h @@ -20,5 +20,6 @@ void ve_spc_global_wakeup_irq(bool set); void ve_spc_cpu_wakeup_irq(u32 cluster, u32 cpu, bool set); void ve_spc_set_resume_addr(u32 cluster, u32 cpu, u32 addr); void ve_spc_powerdown(u32 cluster, bool enable); +int ve_spc_cpu_in_wfi(u32 cpu, u32 cluster); #endif diff --git a/arch/arm/mach-vexpress/tc2_pm.c b/arch/arm/mach-vexpress/tc2_pm.c index 05a364c..29e7785 100644 --- a/arch/arm/mach-vexpress/tc2_pm.c +++ b/arch/arm/mach-vexpress/tc2_pm.c @@ -12,6 +12,7 @@ * published by the Free Software Foundation. */ +#include <linux/delay.h> #include <linux/init.h> #include <linux/io.h> #include <linux/kernel.h> @@ -32,11 +33,17 @@ #include "spc.h" /* SCC conf registers */ +#define RESET_CTRL 0x018 +#define RESET_A15_NCORERESET(cpu) (1 << (2 + (cpu))) +#define RESET_A7_NCORERESET(cpu) (1 << (16 + (cpu))) + #define A15_CONF 0x400 #define A7_CONF 0x500 #define SYS_INFO 0x700 #define SPC_BASE 0xb00 +static void __iomem *scc; + /* * We can't use regular spinlocks. In the switcher case, it is possible * for an outbound CPU to call power_down() after its inbound counterpart @@ -190,6 +197,55 @@ static void tc2_pm_power_down(void) tc2_pm_down(0); } +static int tc2_core_in_reset(unsigned int cpu, unsigned int cluster) +{ + u32 mask = cluster ? + RESET_A7_NCORERESET(cpu) + : RESET_A15_NCORERESET(cpu); + + return !(readl_relaxed(scc + RESET_CTRL) & mask); +} + +#define POLL_MSEC 10 +#define TIMEOUT_MSEC 1000 + +static int tc2_pm_power_down_finish(unsigned int cpu, unsigned int cluster) +{ + unsigned tries; + + pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster); + BUG_ON(cluster >= TC2_CLUSTERS || cpu >= TC2_MAX_CPUS_PER_CLUSTER); + + for (tries = 0; tries < TIMEOUT_MSEC / POLL_MSEC; ++tries) { + /* + * Only examine the hardware state if the target CPU has + * caught up at least as far as tc2_pm_down(): + */ + if (ACCESS_ONCE(tc2_pm_use_count[cpu][cluster]) == 0) { + pr_debug("%s(cpu=%u, cluster=%u): RESET_CTRL = 0x%08X\n", + __func__, cpu, cluster, + readl_relaxed(scc + RESET_CTRL)); + + /* + * We need the CPU to reach WFI, but the power + * controller may put the cluster in reset and + * power it off as soon as that happens, before + * we have a chance to see STANDBYWFI. + * + * So we need to check for both conditions: + */ + if (tc2_core_in_reset(cpu, cluster) || + ve_spc_cpu_in_wfi(cpu, cluster)) + return 0; /* success: the CPU is halted */ + } + + /* Otherwise, wait and retry: */ + msleep(POLL_MSEC); + } + + return -ETIMEDOUT; /* timeout */ +} + static void tc2_pm_suspend(u64 residency) { unsigned int mpidr, cpu, cluster; @@ -232,10 +288,11 @@ static void tc2_pm_powered_up(void) } static const struct mcpm_platform_ops tc2_pm_power_ops = { - .power_up = tc2_pm_power_up, - .power_down = tc2_pm_power_down, - .suspend = tc2_pm_suspend, - .powered_up = tc2_pm_powered_up, + .power_up = tc2_pm_power_up, + .power_down = tc2_pm_power_down, + .power_down_finish = tc2_pm_power_down_finish, + .suspend = tc2_pm_suspend, + .powered_up = tc2_pm_powered_up, }; static bool __init tc2_pm_usage_count_init(void) @@ -269,7 +326,6 @@ static void __naked tc2_pm_power_up_setup(unsigned int affinity_level) static int __init tc2_pm_init(void) { int ret, irq; - void __iomem *scc; u32 a15_cluster_id, a7_cluster_id, sys_info; struct device_node *np; diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 79f8b39..f6b6bfa 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -9,6 +9,7 @@ * * DMA uncached mapping support. */ +#include <linux/bootmem.h> #include <linux/module.h> #include <linux/mm.h> #include <linux/gfp.h> @@ -162,6 +163,8 @@ static u64 get_coherent_dma_mask(struct device *dev) u64 mask = (u64)DMA_BIT_MASK(32); if (dev) { + unsigned long max_dma_pfn; + mask = dev->coherent_dma_mask; /* @@ -173,6 +176,8 @@ static u64 get_coherent_dma_mask(struct device *dev) return 0; } + max_dma_pfn = min(max_pfn, arm_dma_pfn_limit); + /* * If the mask allows for more memory than we can address, * and we actually have that much memory, then fail the @@ -180,7 +185,7 @@ static u64 get_coherent_dma_mask(struct device *dev) */ if (sizeof(mask) != sizeof(dma_addr_t) && mask > (dma_addr_t)~0 && - dma_to_pfn(dev, ~0) > arm_dma_pfn_limit) { + dma_to_pfn(dev, ~0) > max_dma_pfn) { dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n", mask); dev_warn(dev, "Driver did not use or check the return value from dma_set_coherent_mask()?\n"); @@ -192,7 +197,7 @@ static u64 get_coherent_dma_mask(struct device *dev) * fits within the allowable addresses which we can * allocate. */ - if (dma_to_pfn(dev, mask) < arm_dma_pfn_limit) { + if (dma_to_pfn(dev, mask) < max_dma_pfn) { dev_warn(dev, "Coherent DMA mask %#llx (pfn %#lx-%#lx) covers a smaller range of system memory than the DMA zone pfn 0x0-%#lx\n", mask, dma_to_pfn(dev, 0), dma_to_pfn(dev, mask) + 1, diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c index d27158c..5e85ed3 100644 --- a/arch/arm/mm/mmap.c +++ b/arch/arm/mm/mmap.c @@ -146,7 +146,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, info.flags = VM_UNMAPPED_AREA_TOPDOWN; info.length = len; - info.low_limit = PAGE_SIZE; + info.low_limit = FIRST_USER_ADDRESS; info.high_limit = mm->mmap_base; info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0; info.align_offset = pgoff << PAGE_SHIFT; diff --git a/arch/arm/mm/pgd.c b/arch/arm/mm/pgd.c index 0acb089..1046b37 100644 --- a/arch/arm/mm/pgd.c +++ b/arch/arm/mm/pgd.c @@ -87,7 +87,8 @@ pgd_t *pgd_alloc(struct mm_struct *mm) init_pud = pud_offset(init_pgd, 0); init_pmd = pmd_offset(init_pud, 0); init_pte = pte_offset_map(init_pmd, 0); - set_pte_ext(new_pte, *init_pte, 0); + set_pte_ext(new_pte + 0, init_pte[0], 0); + set_pte_ext(new_pte + 1, init_pte[1], 0); pte_unmap(init_pte); pte_unmap(new_pte); } diff --git a/arch/arm/xen/p2m.c b/arch/arm/xen/p2m.c index 23732cd..b31ee1b2 100644 --- a/arch/arm/xen/p2m.c +++ b/arch/arm/xen/p2m.c @@ -25,8 +25,9 @@ struct xen_p2m_entry { struct rb_node rbnode_phys; }; -rwlock_t p2m_lock; +static rwlock_t p2m_lock; struct rb_root phys_to_mach = RB_ROOT; +EXPORT_SYMBOL_GPL(phys_to_mach); static struct rb_root mach_to_phys = RB_ROOT; static int xen_add_phys_to_mach_entry(struct xen_p2m_entry *new) @@ -200,7 +201,7 @@ bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn) } EXPORT_SYMBOL_GPL(__set_phys_to_machine); -int p2m_init(void) +static int p2m_init(void) { rwlock_init(&p2m_lock); return 0; diff --git a/arch/arm64/boot/dts/foundation-v8.dts b/arch/arm64/boot/dts/foundation-v8.dts index 84fcc50..519c4b2 100644 --- a/arch/arm64/boot/dts/foundation-v8.dts +++ b/arch/arm64/boot/dts/foundation-v8.dts @@ -6,6 +6,8 @@ /dts-v1/; +/memreserve/ 0x80000000 0x00010000; + / { model = "Foundation-v8A"; compatible = "arm,foundation-aarch64", "arm,vexpress"; diff --git a/arch/arm64/include/asm/irqflags.h b/arch/arm64/include/asm/irqflags.h index aa11943..b2fcfbc 100644 --- a/arch/arm64/include/asm/irqflags.h +++ b/arch/arm64/include/asm/irqflags.h @@ -56,6 +56,9 @@ static inline void arch_local_irq_disable(void) #define local_fiq_enable() asm("msr daifclr, #1" : : : "memory") #define local_fiq_disable() asm("msr daifset, #1" : : : "memory") +#define local_async_enable() asm("msr daifclr, #4" : : : "memory") +#define local_async_disable() asm("msr daifset, #4" : : : "memory") + /* * Save the current interrupt enable state. */ diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 17bd3af..7f2b60a 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -25,10 +25,11 @@ * Software defined PTE bits definition. */ #define PTE_VALID (_AT(pteval_t, 1) << 0) -#define PTE_PROT_NONE (_AT(pteval_t, 1) << 2) /* only when !PTE_VALID */ -#define PTE_FILE (_AT(pteval_t, 1) << 3) /* only when !pte_present() */ +#define PTE_FILE (_AT(pteval_t, 1) << 2) /* only when !pte_present() */ #define PTE_DIRTY (_AT(pteval_t, 1) << 55) #define PTE_SPECIAL (_AT(pteval_t, 1) << 56) + /* bit 57 for PMD_SECT_SPLITTING */ +#define PTE_PROT_NONE (_AT(pteval_t, 1) << 58) /* only when !PTE_VALID */ /* * VMALLOC and SPARSEMEM_VMEMMAP ranges. @@ -254,7 +255,7 @@ static inline int has_transparent_hugepage(void) #define pgprot_noncached(prot) \ __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_nGnRnE)) #define pgprot_writecombine(prot) \ - __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_GRE)) + __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL_NC)) #define pgprot_dmacoherent(prot) \ __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL_NC)) #define __HAVE_PHYS_MEM_ACCESS_PROT @@ -357,18 +358,20 @@ extern pgd_t idmap_pg_dir[PTRS_PER_PGD]; /* * Encode and decode a swap entry: - * bits 0, 2: present (must both be zero) - * bit 3: PTE_FILE - * bits 4-8: swap type - * bits 9-63: swap offset + * bits 0-1: present (must be zero) + * bit 2: PTE_FILE + * bits 3-8: swap type + * bits 9-57: swap offset */ -#define __SWP_TYPE_SHIFT 4 +#define __SWP_TYPE_SHIFT 3 #define __SWP_TYPE_BITS 6 +#define __SWP_OFFSET_BITS 49 #define __SWP_TYPE_MASK ((1 << __SWP_TYPE_BITS) - 1) #define __SWP_OFFSET_SHIFT (__SWP_TYPE_BITS + __SWP_TYPE_SHIFT) +#define __SWP_OFFSET_MASK ((1UL << __SWP_OFFSET_BITS) - 1) #define __swp_type(x) (((x).val >> __SWP_TYPE_SHIFT) & __SWP_TYPE_MASK) -#define __swp_offset(x) ((x).val >> __SWP_OFFSET_SHIFT) +#define __swp_offset(x) (((x).val >> __SWP_OFFSET_SHIFT) & __SWP_OFFSET_MASK) #define __swp_entry(type,offset) ((swp_entry_t) { ((type) << __SWP_TYPE_SHIFT) | ((offset) << __SWP_OFFSET_SHIFT) }) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) @@ -382,15 +385,15 @@ extern pgd_t idmap_pg_dir[PTRS_PER_PGD]; /* * Encode and decode a file entry: - * bits 0, 2: present (must both be zero) - * bit 3: PTE_FILE - * bits 4-63: file offset / PAGE_SIZE + * bits 0-1: present (must be zero) + * bit 2: PTE_FILE + * bits 3-57: file offset / PAGE_SIZE */ #define pte_file(pte) (pte_val(pte) & PTE_FILE) -#define pte_to_pgoff(x) (pte_val(x) >> 4) -#define pgoff_to_pte(x) __pte(((x) << 4) | PTE_FILE) +#define pte_to_pgoff(x) (pte_val(x) >> 3) +#define pgoff_to_pte(x) __pte(((x) << 3) | PTE_FILE) -#define PTE_FILE_MAX_BITS 60 +#define PTE_FILE_MAX_BITS 55 extern int kern_addr_valid(unsigned long addr); diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c index 6a0a9b1..4ae6857 100644 --- a/arch/arm64/kernel/debug-monitors.c +++ b/arch/arm64/kernel/debug-monitors.c @@ -248,7 +248,8 @@ static int brk_handler(unsigned long addr, unsigned int esr, int aarch32_break_handler(struct pt_regs *regs) { siginfo_t info; - unsigned int instr; + u32 arm_instr; + u16 thumb_instr; bool bp = false; void __user *pc = (void __user *)instruction_pointer(regs); @@ -257,18 +258,21 @@ int aarch32_break_handler(struct pt_regs *regs) if (compat_thumb_mode(regs)) { /* get 16-bit Thumb instruction */ - get_user(instr, (u16 __user *)pc); - if (instr == AARCH32_BREAK_THUMB2_LO) { + get_user(thumb_instr, (u16 __user *)pc); + thumb_instr = le16_to_cpu(thumb_instr); + if (thumb_instr == AARCH32_BREAK_THUMB2_LO) { /* get second half of 32-bit Thumb-2 instruction */ - get_user(instr, (u16 __user *)(pc + 2)); - bp = instr == AARCH32_BREAK_THUMB2_HI; + get_user(thumb_instr, (u16 __user *)(pc + 2)); + thumb_instr = le16_to_cpu(thumb_instr); + bp = thumb_instr == AARCH32_BREAK_THUMB2_HI; } else { - bp = instr == AARCH32_BREAK_THUMB; + bp = thumb_instr == AARCH32_BREAK_THUMB; } } else { /* 32-bit ARM instruction */ - get_user(instr, (u32 __user *)pc); - bp = (instr & ~0xf0000000) == AARCH32_BREAK_ARM; + get_user(arm_instr, (u32 __user *)pc); + arm_instr = le32_to_cpu(arm_instr); + bp = (arm_instr & ~0xf0000000) == AARCH32_BREAK_ARM; } if (!bp) diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index e116614..4d2c6f3 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -309,15 +309,12 @@ el1_irq: #ifdef CONFIG_TRACE_IRQFLAGS bl trace_hardirqs_off #endif -#ifdef CONFIG_PREEMPT - get_thread_info tsk - ldr w24, [tsk, #TI_PREEMPT] // get preempt count - add w0, w24, #1 // increment it - str w0, [tsk, #TI_PREEMPT] -#endif + irq_handler + #ifdef CONFIG_PREEMPT - str w24, [tsk, #TI_PREEMPT] // restore preempt count + get_thread_info tsk + ldr w24, [tsk, #TI_PREEMPT] // restore preempt count cbnz w24, 1f // preempt count != 0 ldr x0, [tsk, #TI_FLAGS] // get flags tbz x0, #TIF_NEED_RESCHED, 1f // needs rescheduling? @@ -507,22 +504,10 @@ el0_irq_naked: #ifdef CONFIG_TRACE_IRQFLAGS bl trace_hardirqs_off #endif - get_thread_info tsk -#ifdef CONFIG_PREEMPT - ldr w24, [tsk, #TI_PREEMPT] // get preempt count - add w23, w24, #1 // increment it - str w23, [tsk, #TI_PREEMPT] -#endif + irq_handler -#ifdef CONFIG_PREEMPT - ldr w0, [tsk, #TI_PREEMPT] - str w24, [tsk, #TI_PREEMPT] - cmp w0, w23 - b.eq 1f - mov x1, #0 - str x1, [x1] // BUG -1: -#endif + get_thread_info tsk + #ifdef CONFIG_TRACE_IRQFLAGS bl trace_hardirqs_on #endif diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c index fecdbf7..6777a21 100644 --- a/arch/arm64/kernel/ptrace.c +++ b/arch/arm64/kernel/ptrace.c @@ -636,28 +636,27 @@ static int compat_gpr_get(struct task_struct *target, for (i = 0; i < num_regs; ++i) { unsigned int idx = start + i; - void *reg; + compat_ulong_t reg; switch (idx) { case 15: - reg = (void *)&task_pt_regs(target)->pc; + reg = task_pt_regs(target)->pc; break; case 16: - reg = (void *)&task_pt_regs(target)->pstate; + reg = task_pt_regs(target)->pstate; break; case 17: - reg = (void *)&task_pt_regs(target)->orig_x0; + reg = task_pt_regs(target)->orig_x0; break; default: - reg = (void *)&task_pt_regs(target)->regs[idx]; + reg = task_pt_regs(target)->regs[idx]; } - ret = copy_to_user(ubuf, reg, sizeof(compat_ulong_t)); - + ret = copy_to_user(ubuf, ®, sizeof(reg)); if (ret) break; - else - ubuf += sizeof(compat_ulong_t); + + ubuf += sizeof(reg); } return ret; @@ -685,28 +684,28 @@ static int compat_gpr_set(struct task_struct *target, for (i = 0; i < num_regs; ++i) { unsigned int idx = start + i; - void *reg; + compat_ulong_t reg; + + ret = copy_from_user(®, ubuf, sizeof(reg)); + if (ret) + return ret; + + ubuf += sizeof(reg); switch (idx) { case 15: - reg = (void *)&newregs.pc; + newregs.pc = reg; break; case 16: - reg = (void *)&newregs.pstate; + newregs.pstate = reg; break; case 17: - reg = (void *)&newregs.orig_x0; + newregs.orig_x0 = reg; break; default: - reg = (void *)&newregs.regs[idx]; + newregs.regs[idx] = reg; } - ret = copy_from_user(reg, ubuf, sizeof(compat_ulong_t)); - - if (ret) - goto out; - else - ubuf += sizeof(compat_ulong_t); } if (valid_user_regs(&newregs.user_regs)) @@ -714,7 +713,6 @@ static int compat_gpr_set(struct task_struct *target, else ret = -EINVAL; -out: return ret; } diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 0bc5e4c..bd9bbd0 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -205,6 +205,11 @@ u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID }; void __init setup_arch(char **cmdline_p) { + /* + * Unmask asynchronous aborts early to catch possible system errors. + */ + local_async_enable(); + setup_processor(); setup_machine_fdt(__fdt_pointer); diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index a5aeefa..a0c2ca6 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -160,6 +160,7 @@ asmlinkage void secondary_start_kernel(void) local_irq_enable(); local_fiq_enable(); + local_async_enable(); /* * OK, it's off to the idle thread for us diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 8a24636..0f4344e 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -75,8 +75,10 @@ LDEMULATION := lppc GNUTARGET := powerpcle MULTIPLEWORD := -mno-multiple else +ifeq ($(call cc-option-yn,-mbig-endian),y) override CC += -mbig-endian override AS += -mbig-endian +endif override LD += -EB LDEMULATION := ppc GNUTARGET := powerpc @@ -128,7 +130,12 @@ CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5) CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6) CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7) +# Altivec option not allowed with e500mc64 in GCC. +ifeq ($(CONFIG_ALTIVEC),y) +E5500_CPU := -mcpu=powerpc64 +else E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64) +endif CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU) CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU)) diff --git a/arch/powerpc/boot/dts/xcalibur1501.dts b/arch/powerpc/boot/dts/xcalibur1501.dts index cc00f4d..c409cba 100644 --- a/arch/powerpc/boot/dts/xcalibur1501.dts +++ b/arch/powerpc/boot/dts/xcalibur1501.dts @@ -637,14 +637,14 @@ tlu@2f000 { compatible = "fsl,mpc8572-tlu", "fsl_tlu"; reg = <0x2f000 0x1000>; - interupts = <61 2 >; + interrupts = <61 2>; interrupt-parent = <&mpic>; }; tlu@15000 { compatible = "fsl,mpc8572-tlu", "fsl_tlu"; reg = <0x15000 0x1000>; - interupts = <75 2>; + interrupts = <75 2>; interrupt-parent = <&mpic>; }; }; diff --git a/arch/powerpc/boot/dts/xpedite5301.dts b/arch/powerpc/boot/dts/xpedite5301.dts index 53c1c6a..04cb410 100644 --- a/arch/powerpc/boot/dts/xpedite5301.dts +++ b/arch/powerpc/boot/dts/xpedite5301.dts @@ -547,14 +547,14 @@ tlu@2f000 { compatible = "fsl,mpc8572-tlu", "fsl_tlu"; reg = <0x2f000 0x1000>; - interupts = <61 2 >; + interrupts = <61 2>; interrupt-parent = <&mpic>; }; tlu@15000 { compatible = "fsl,mpc8572-tlu", "fsl_tlu"; reg = <0x15000 0x1000>; - interupts = <75 2>; + interrupts = <75 2>; interrupt-parent = <&mpic>; }; }; diff --git a/arch/powerpc/boot/dts/xpedite5330.dts b/arch/powerpc/boot/dts/xpedite5330.dts index 2152259..73f8620 100644 --- a/arch/powerpc/boot/dts/xpedite5330.dts +++ b/arch/powerpc/boot/dts/xpedite5330.dts @@ -583,14 +583,14 @@ tlu@2f000 { compatible = "fsl,mpc8572-tlu", "fsl_tlu"; reg = <0x2f000 0x1000>; - interupts = <61 2 >; + interrupts = <61 2>; interrupt-parent = <&mpic>; }; tlu@15000 { compatible = "fsl,mpc8572-tlu", "fsl_tlu"; reg = <0x15000 0x1000>; - interupts = <75 2>; + interrupts = <75 2>; interrupt-parent = <&mpic>; }; }; diff --git a/arch/powerpc/boot/dts/xpedite5370.dts b/arch/powerpc/boot/dts/xpedite5370.dts index 11dbda1..cd0ea2b 100644 --- a/arch/powerpc/boot/dts/xpedite5370.dts +++ b/arch/powerpc/boot/dts/xpedite5370.dts @@ -545,14 +545,14 @@ tlu@2f000 { compatible = "fsl,mpc8572-tlu", "fsl_tlu"; reg = <0x2f000 0x1000>; - interupts = <61 2 >; + interrupts = <61 2>; interrupt-parent = <&mpic>; }; tlu@15000 { compatible = "fsl,mpc8572-tlu", "fsl_tlu"; reg = <0x15000 0x1000>; - interupts = <75 2>; + interrupts = <75 2>; interrupt-parent = <&mpic>; }; }; diff --git a/arch/powerpc/boot/util.S b/arch/powerpc/boot/util.S index 5143228..6636b1d 100644 --- a/arch/powerpc/boot/util.S +++ b/arch/powerpc/boot/util.S @@ -71,18 +71,32 @@ udelay: add r4,r4,r5 addi r4,r4,-1 divw r4,r4,r5 /* BUS ticks */ +#ifdef CONFIG_8xx +1: mftbu r5 + mftb r6 + mftbu r7 +#else 1: mfspr r5, SPRN_TBRU mfspr r6, SPRN_TBRL mfspr r7, SPRN_TBRU +#endif cmpw 0,r5,r7 bne 1b /* Get [synced] base time */ addc r9,r6,r4 /* Compute end time */ addze r8,r5 +#ifdef CONFIG_8xx +2: mftbu r5 +#else 2: mfspr r5, SPRN_TBRU +#endif cmpw 0,r5,r8 blt 2b bgt 3f +#ifdef CONFIG_8xx + mftb r6 +#else mfspr r6, SPRN_TBRL +#endif cmpw 0,r6,r9 blt 2b 3: blr diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h index 16cb92d..6940128 100644 --- a/arch/powerpc/include/asm/pgalloc-64.h +++ b/arch/powerpc/include/asm/pgalloc-64.h @@ -16,6 +16,7 @@ struct vmemmap_backing { unsigned long phys; unsigned long virt_addr; }; +extern struct vmemmap_backing *vmemmap_list; /* * Functions that deal with pagetables that could be at any level of diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h index 3c1acc3..f595b98 100644 --- a/arch/powerpc/include/asm/ppc_asm.h +++ b/arch/powerpc/include/asm/ppc_asm.h @@ -366,6 +366,8 @@ BEGIN_FTR_SECTION_NESTED(96); \ cmpwi dest,0; \ beq- 90b; \ END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96) +#elif defined(CONFIG_8xx) +#define MFTB(dest) mftb dest #else #define MFTB(dest) mfspr dest, SPRN_TBRL #endif diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 5c45787..fa8388e 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -1174,12 +1174,19 @@ #else /* __powerpc64__ */ +#if defined(CONFIG_8xx) +#define mftbl() ({unsigned long rval; \ + asm volatile("mftbl %0" : "=r" (rval)); rval;}) +#define mftbu() ({unsigned long rval; \ + asm volatile("mftbu %0" : "=r" (rval)); rval;}) +#else #define mftbl() ({unsigned long rval; \ asm volatile("mfspr %0, %1" : "=r" (rval) : \ "i" (SPRN_TBRL)); rval;}) #define mftbu() ({unsigned long rval; \ asm volatile("mfspr %0, %1" : "=r" (rval) : \ "i" (SPRN_TBRU)); rval;}) +#endif #endif /* !__powerpc64__ */ #define mttbl(v) asm volatile("mttbl %0":: "r"(v)) diff --git a/arch/powerpc/include/asm/timex.h b/arch/powerpc/include/asm/timex.h index 18908ca..2cf846e 100644 --- a/arch/powerpc/include/asm/timex.h +++ b/arch/powerpc/include/asm/timex.h @@ -29,7 +29,11 @@ static inline cycles_t get_cycles(void) ret = 0; __asm__ __volatile__( +#ifdef CONFIG_8xx + "97: mftb %0\n" +#else "97: mfspr %0, %2\n" +#endif "99:\n" ".section __ftr_fixup,\"a\"\n" ".align 2\n" @@ -41,7 +45,11 @@ static inline cycles_t get_cycles(void) " .long 0\n" " .long 0\n" ".previous" +#ifdef CONFIG_8xx + : "=r" (ret) : "i" (CPU_FTR_601)); +#else : "=r" (ret) : "i" (CPU_FTR_601), "i" (SPRN_TBRL)); +#endif return ret; #endif } diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c index e1ec57e..88a7fb4 100644 --- a/arch/powerpc/kernel/machine_kexec.c +++ b/arch/powerpc/kernel/machine_kexec.c @@ -18,6 +18,7 @@ #include <linux/ftrace.h> #include <asm/machdep.h> +#include <asm/pgalloc.h> #include <asm/prom.h> #include <asm/sections.h> @@ -75,6 +76,17 @@ void arch_crash_save_vmcoreinfo(void) #ifndef CONFIG_NEED_MULTIPLE_NODES VMCOREINFO_SYMBOL(contig_page_data); #endif +#if defined(CONFIG_PPC64) && defined(CONFIG_SPARSEMEM_VMEMMAP) + VMCOREINFO_SYMBOL(vmemmap_list); + VMCOREINFO_SYMBOL(mmu_vmemmap_psize); + VMCOREINFO_SYMBOL(mmu_psize_defs); + VMCOREINFO_STRUCT_SIZE(vmemmap_backing); + VMCOREINFO_OFFSET(vmemmap_backing, list); + VMCOREINFO_OFFSET(vmemmap_backing, phys); + VMCOREINFO_OFFSET(vmemmap_backing, virt_addr); + VMCOREINFO_STRUCT_SIZE(mmu_psize_def); + VMCOREINFO_OFFSET(mmu_psize_def, shift); +#endif } /* diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c index fd82c28..28b898e 100644 --- a/arch/powerpc/kernel/nvram_64.c +++ b/arch/powerpc/kernel/nvram_64.c @@ -210,7 +210,7 @@ static void __init nvram_print_partitions(char * label) printk(KERN_WARNING "--------%s---------\n", label); printk(KERN_WARNING "indx\t\tsig\tchks\tlen\tname\n"); list_for_each_entry(tmp_part, &nvram_partitions, partition) { - printk(KERN_WARNING "%4d \t%02x\t%02x\t%d\t%12s\n", + printk(KERN_WARNING "%4d \t%02x\t%02x\t%d\t%12.12s\n", tmp_part->index, tmp_part->header.signature, tmp_part->header.checksum, tmp_part->header.length, tmp_part->header.name); diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index 1844298..68027bf 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -445,6 +445,12 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame, #endif /* CONFIG_ALTIVEC */ if (copy_fpr_to_user(&frame->mc_fregs, current)) return 1; + + /* + * Clear the MSR VSX bit to indicate there is no valid state attached + * to this context, except in the specific case below where we set it. + */ + msr &= ~MSR_VSX; #ifdef CONFIG_VSX /* * Copy VSR 0-31 upper half from thread_struct to local @@ -457,15 +463,7 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame, if (copy_vsx_to_user(&frame->mc_vsregs, current)) return 1; msr |= MSR_VSX; - } else if (!ctx_has_vsx_region) - /* - * With a small context structure we can't hold the VSX - * registers, hence clear the MSR value to indicate the state - * was not saved. - */ - msr &= ~MSR_VSX; - - + } #endif /* CONFIG_VSX */ #ifdef CONFIG_SPE /* save spe registers */ diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c index e66f67b..4299104 100644 --- a/arch/powerpc/kernel/signal_64.c +++ b/arch/powerpc/kernel/signal_64.c @@ -122,6 +122,12 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, flush_fp_to_thread(current); /* copy fpr regs and fpscr */ err |= copy_fpr_to_user(&sc->fp_regs, current); + + /* + * Clear the MSR VSX bit to indicate there is no valid state attached + * to this context, except in the specific case below where we set it. + */ + msr &= ~MSR_VSX; #ifdef CONFIG_VSX /* * Copy VSX low doubleword to local buffer for formatting, diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso32/gettimeofday.S index 6b1f2a6..6b2b696 100644 --- a/arch/powerpc/kernel/vdso32/gettimeofday.S +++ b/arch/powerpc/kernel/vdso32/gettimeofday.S @@ -232,9 +232,15 @@ __do_get_tspec: lwz r6,(CFG_TB_ORIG_STAMP+4)(r9) /* Get a stable TB value */ +#ifdef CONFIG_8xx +2: mftbu r3 + mftbl r4 + mftbu r0 +#else 2: mfspr r3, SPRN_TBRU mfspr r4, SPRN_TBRL mfspr r0, SPRN_TBRU +#endif cmplw cr0,r3,r0 bne- 2b diff --git a/arch/powerpc/mm/hugetlbpage-book3e.c b/arch/powerpc/mm/hugetlbpage-book3e.c index 3bc7006..74551b5 100644 --- a/arch/powerpc/mm/hugetlbpage-book3e.c +++ b/arch/powerpc/mm/hugetlbpage-book3e.c @@ -117,6 +117,5 @@ void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr) struct hstate *hstate = hstate_file(vma->vm_file); unsigned long tsize = huge_page_shift(hstate) - 10; - __flush_tlb_page(vma ? vma->vm_mm : NULL, vmaddr, tsize, 0); - + __flush_tlb_page(vma->vm_mm, vmaddr, tsize, 0); } diff --git a/arch/powerpc/mm/tlb_nohash.c b/arch/powerpc/mm/tlb_nohash.c index 41cd68d..358d743 100644 --- a/arch/powerpc/mm/tlb_nohash.c +++ b/arch/powerpc/mm/tlb_nohash.c @@ -305,7 +305,7 @@ void __flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr, void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr) { #ifdef CONFIG_HUGETLB_PAGE - if (is_vm_hugetlb_page(vma)) + if (vma && is_vm_hugetlb_page(vma)) flush_hugetlb_page(vma, vmaddr); #endif diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 132f872..bca2465 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -404,13 +404,27 @@ config PPC_DOORBELL endmenu -config CPU_LITTLE_ENDIAN - bool "Build little endian kernel" - default n +choice + prompt "Endianness selection" + default CPU_BIG_ENDIAN help This option selects whether a big endian or little endian kernel will be built. +config CPU_BIG_ENDIAN + bool "Build big endian kernel" + help + Build a big endian kernel. + + If unsure, select this option. + +config CPU_LITTLE_ENDIAN + bool "Build little endian kernel" + help + Build a little endian kernel. + Note that if cross compiling a little endian kernel, CROSS_COMPILE must point to a toolchain capable of targeting little endian powerpc. + +endchoice diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 314fced..5877e71 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -101,7 +101,7 @@ config S390 select GENERIC_CPU_DEVICES if !SMP select GENERIC_FIND_FIRST_BIT select GENERIC_SMP_IDLE_THREAD - select GENERIC_TIME_VSYSCALL_OLD + select GENERIC_TIME_VSYSCALL select HAVE_ALIGNED_STRUCT_PAGE if SLUB select HAVE_ARCH_JUMP_LABEL if !MARCH_G5 select HAVE_ARCH_SECCOMP_FILTER diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index 316c850..114258e 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -48,33 +48,21 @@ static inline void clear_page(void *page) : "memory", "cc"); } +/* + * copy_page uses the mvcl instruction with 0xb0 padding byte in order to + * bypass caches when copying a page. Especially when copying huge pages + * this keeps L1 and L2 data caches alive. + */ static inline void copy_page(void *to, void *from) { - if (MACHINE_HAS_MVPG) { - register unsigned long reg0 asm ("0") = 0; - asm volatile( - " mvpg %0,%1" - : : "a" (to), "a" (from), "d" (reg0) - : "memory", "cc"); - } else - asm volatile( - " mvc 0(256,%0),0(%1)\n" - " mvc 256(256,%0),256(%1)\n" - " mvc 512(256,%0),512(%1)\n" - " mvc 768(256,%0),768(%1)\n" - " mvc 1024(256,%0),1024(%1)\n" - " mvc 1280(256,%0),1280(%1)\n" - " mvc 1536(256,%0),1536(%1)\n" - " mvc 1792(256,%0),1792(%1)\n" - " mvc 2048(256,%0),2048(%1)\n" - " mvc 2304(256,%0),2304(%1)\n" - " mvc 2560(256,%0),2560(%1)\n" - " mvc 2816(256,%0),2816(%1)\n" - " mvc 3072(256,%0),3072(%1)\n" - " mvc 3328(256,%0),3328(%1)\n" - " mvc 3584(256,%0),3584(%1)\n" - " mvc 3840(256,%0),3840(%1)\n" - : : "a" (to), "a" (from) : "memory"); + register void *reg2 asm ("2") = to; + register unsigned long reg3 asm ("3") = 0x1000; + register void *reg4 asm ("4") = from; + register unsigned long reg5 asm ("5") = 0xb0001000; + asm volatile( + " mvcl 2,4" + : "+d" (reg2), "+d" (reg3), "+d" (reg4), "+d" (reg5) + : : "memory", "cc"); } #define clear_user_page(page, vaddr, pg) clear_page(page) diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h index a73eb2e..bc9746a 100644 --- a/arch/s390/include/asm/vdso.h +++ b/arch/s390/include/asm/vdso.h @@ -26,8 +26,9 @@ struct vdso_data { __u64 wtom_clock_nsec; /* 0x28 */ __u32 tz_minuteswest; /* Minutes west of Greenwich 0x30 */ __u32 tz_dsttime; /* Type of dst correction 0x34 */ - __u32 ectg_available; - __u32 ntp_mult; /* NTP adjusted multiplier 0x3C */ + __u32 ectg_available; /* ECTG instruction present 0x38 */ + __u32 tk_mult; /* Mult. used for xtime_nsec 0x3c */ + __u32 tk_shift; /* Shift used for xtime_nsec 0x40 */ }; struct vdso_per_cpu_data { diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c index 2416138..496116c 100644 --- a/arch/s390/kernel/asm-offsets.c +++ b/arch/s390/kernel/asm-offsets.c @@ -65,7 +65,8 @@ int main(void) DEFINE(__VDSO_WTOM_NSEC, offsetof(struct vdso_data, wtom_clock_nsec)); DEFINE(__VDSO_TIMEZONE, offsetof(struct vdso_data, tz_minuteswest)); DEFINE(__VDSO_ECTG_OK, offsetof(struct vdso_data, ectg_available)); - DEFINE(__VDSO_NTP_MULT, offsetof(struct vdso_data, ntp_mult)); + DEFINE(__VDSO_TK_MULT, offsetof(struct vdso_data, tk_mult)); + DEFINE(__VDSO_TK_SHIFT, offsetof(struct vdso_data, tk_shift)); DEFINE(__VDSO_ECTG_BASE, offsetof(struct vdso_per_cpu_data, ectg_timer_base)); DEFINE(__VDSO_ECTG_USER, offsetof(struct vdso_per_cpu_data, ectg_user_time)); /* constants used by the vdso */ diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c index 6e24429..95e7ba0 100644 --- a/arch/s390/kernel/compat_signal.c +++ b/arch/s390/kernel/compat_signal.c @@ -194,7 +194,7 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs) return -EINVAL; /* Use regs->psw.mask instead of PSW_USER_BITS to preserve PER bit. */ - regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) | + regs->psw.mask = (regs->psw.mask & ~(PSW_MASK_USER | PSW_MASK_RI)) | (__u64)(user_sregs.regs.psw.mask & PSW32_MASK_USER) << 32 | (__u64)(user_sregs.regs.psw.mask & PSW32_MASK_RI) << 32 | (__u64)(user_sregs.regs.psw.addr & PSW32_ADDR_AMODE); diff --git a/arch/s390/kernel/pgm_check.S b/arch/s390/kernel/pgm_check.S index 4a460c4..813ec72 100644 --- a/arch/s390/kernel/pgm_check.S +++ b/arch/s390/kernel/pgm_check.S @@ -78,7 +78,7 @@ PGM_CHECK_DEFAULT /* 34 */ PGM_CHECK_DEFAULT /* 35 */ PGM_CHECK_DEFAULT /* 36 */ PGM_CHECK_DEFAULT /* 37 */ -PGM_CHECK_DEFAULT /* 38 */ +PGM_CHECK_64BIT(do_dat_exception) /* 38 */ PGM_CHECK_64BIT(do_dat_exception) /* 39 */ PGM_CHECK_64BIT(do_dat_exception) /* 3a */ PGM_CHECK_64BIT(do_dat_exception) /* 3b */ diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c index fb53587..d8fd508 100644 --- a/arch/s390/kernel/signal.c +++ b/arch/s390/kernel/signal.c @@ -94,7 +94,7 @@ static int restore_sigregs(struct pt_regs *regs, _sigregs __user *sregs) return -EINVAL; /* Use regs->psw.mask instead of PSW_USER_BITS to preserve PER bit. */ - regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) | + regs->psw.mask = (regs->psw.mask & ~(PSW_MASK_USER | PSW_MASK_RI)) | (user_sregs.regs.psw.mask & (PSW_MASK_USER | PSW_MASK_RI)); /* Check for invalid user address space control. */ if ((regs->psw.mask & PSW_MASK_ASC) == PSW_ASC_HOME) diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 064c308..dd95f163 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -108,20 +108,10 @@ static void fixup_clock_comparator(unsigned long long delta) set_clock_comparator(S390_lowcore.clock_comparator); } -static int s390_next_ktime(ktime_t expires, +static int s390_next_event(unsigned long delta, struct clock_event_device *evt) { - struct timespec ts; - u64 nsecs; - - ts.tv_sec = ts.tv_nsec = 0; - monotonic_to_bootbased(&ts); - nsecs = ktime_to_ns(ktime_add(timespec_to_ktime(ts), expires)); - do_div(nsecs, 125); - S390_lowcore.clock_comparator = sched_clock_base_cc + (nsecs << 9); - /* Program the maximum value if we have an overflow (== year 2042) */ - if (unlikely(S390_lowcore.clock_comparator < sched_clock_base_cc)) - S390_lowcore.clock_comparator = -1ULL; + S390_lowcore.clock_comparator = get_tod_clock() + delta; set_clock_comparator(S390_lowcore.clock_comparator); return 0; } @@ -146,15 +136,14 @@ void init_cpu_timer(void) cpu = smp_processor_id(); cd = &per_cpu(comparators, cpu); cd->name = "comparator"; - cd->features = CLOCK_EVT_FEAT_ONESHOT | - CLOCK_EVT_FEAT_KTIME; + cd->features = CLOCK_EVT_FEAT_ONESHOT; cd->mult = 16777; cd->shift = 12; cd->min_delta_ns = 1; cd->max_delta_ns = LONG_MAX; cd->rating = 400; cd->cpumask = cpumask_of(cpu); - cd->set_next_ktime = s390_next_ktime; + cd->set_next_event = s390_next_event; cd->set_mode = s390_set_mode; clockevents_register_device(cd); @@ -221,21 +210,30 @@ struct clocksource * __init clocksource_default_clock(void) return &clocksource_tod; } -void update_vsyscall_old(struct timespec *wall_time, struct timespec *wtm, - struct clocksource *clock, u32 mult) +void update_vsyscall(struct timekeeper *tk) { - if (clock != &clocksource_tod) + u64 nsecps; + + if (tk->clock != &clocksource_tod) return; /* Make userspace gettimeofday spin until we're done. */ ++vdso_data->tb_update_count; smp_wmb(); - vdso_data->xtime_tod_stamp = clock->cycle_last; - vdso_data->xtime_clock_sec = wall_time->tv_sec; - vdso_data->xtime_clock_nsec = wall_time->tv_nsec; - vdso_data->wtom_clock_sec = wtm->tv_sec; - vdso_data->wtom_clock_nsec = wtm->tv_nsec; - vdso_data->ntp_mult = mult; + vdso_data->xtime_tod_stamp = tk->clock->cycle_last; + vdso_data->xtime_clock_sec = tk->xtime_sec; + vdso_data->xtime_clock_nsec = tk->xtime_nsec; + vdso_data->wtom_clock_sec = + tk->xtime_sec + tk->wall_to_monotonic.tv_sec; + vdso_data->wtom_clock_nsec = tk->xtime_nsec + + + (tk->wall_to_monotonic.tv_nsec << tk->shift); + nsecps = (u64) NSEC_PER_SEC << tk->shift; + while (vdso_data->wtom_clock_nsec >= nsecps) { + vdso_data->wtom_clock_nsec -= nsecps; + vdso_data->wtom_clock_sec++; + } + vdso_data->tk_mult = tk->mult; + vdso_data->tk_shift = tk->shift; smp_wmb(); ++vdso_data->tb_update_count; } diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S index b2224e0..5be8e47 100644 --- a/arch/s390/kernel/vdso32/clock_gettime.S +++ b/arch/s390/kernel/vdso32/clock_gettime.S @@ -38,25 +38,26 @@ __kernel_clock_gettime: sl %r1,__VDSO_XTIME_STAMP+4(%r5) brc 3,2f ahi %r0,-1 -2: ms %r0,__VDSO_NTP_MULT(%r5) /* cyc2ns(clock,cycle_delta) */ +2: ms %r0,__VDSO_TK_MULT(%r5) /* * tk->mult */ lr %r2,%r0 - l %r0,__VDSO_NTP_MULT(%r5) + l %r0,__VDSO_TK_MULT(%r5) ltr %r1,%r1 mr %r0,%r0 jnm 3f - a %r0,__VDSO_NTP_MULT(%r5) + a %r0,__VDSO_TK_MULT(%r5) 3: alr %r0,%r2 - srdl %r0,12 - al %r0,__VDSO_XTIME_NSEC(%r5) /* + xtime */ + al %r0,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */ al %r1,__VDSO_XTIME_NSEC+4(%r5) brc 12,4f ahi %r0,1 -4: l %r2,__VDSO_XTIME_SEC+4(%r5) - al %r0,__VDSO_WTOM_NSEC(%r5) /* + wall_to_monotonic */ +4: al %r0,__VDSO_WTOM_NSEC(%r5) /* + wall_to_monotonic.nsec */ al %r1,__VDSO_WTOM_NSEC+4(%r5) brc 12,5f ahi %r0,1 -5: al %r2,__VDSO_WTOM_SEC+4(%r5) +5: l %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ + srdl %r0,0(%r2) /* >> tk->shift */ + l %r2,__VDSO_XTIME_SEC+4(%r5) + al %r2,__VDSO_WTOM_SEC+4(%r5) cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ jne 1b basr %r5,0 @@ -86,20 +87,21 @@ __kernel_clock_gettime: sl %r1,__VDSO_XTIME_STAMP+4(%r5) brc 3,12f ahi %r0,-1 -12: ms %r0,__VDSO_NTP_MULT(%r5) /* cyc2ns(clock,cycle_delta) */ +12: ms %r0,__VDSO_TK_MULT(%r5) /* * tk->mult */ lr %r2,%r0 - l %r0,__VDSO_NTP_MULT(%r5) + l %r0,__VDSO_TK_MULT(%r5) ltr %r1,%r1 mr %r0,%r0 jnm 13f - a %r0,__VDSO_NTP_MULT(%r5) + a %r0,__VDSO_TK_MULT(%r5) 13: alr %r0,%r2 - srdl %r0,12 - al %r0,__VDSO_XTIME_NSEC(%r5) /* + xtime */ + al %r0,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */ al %r1,__VDSO_XTIME_NSEC+4(%r5) brc 12,14f ahi %r0,1 -14: l %r2,__VDSO_XTIME_SEC+4(%r5) +14: l %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ + srdl %r0,0(%r2) /* >> tk->shift */ + l %r2,__VDSO_XTIME_SEC+4(%r5) cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ jne 11b basr %r5,0 diff --git a/arch/s390/kernel/vdso32/gettimeofday.S b/arch/s390/kernel/vdso32/gettimeofday.S index 2d36331..fd621a9 100644 --- a/arch/s390/kernel/vdso32/gettimeofday.S +++ b/arch/s390/kernel/vdso32/gettimeofday.S @@ -35,15 +35,14 @@ __kernel_gettimeofday: sl %r1,__VDSO_XTIME_STAMP+4(%r5) brc 3,3f ahi %r0,-1 -3: ms %r0,__VDSO_NTP_MULT(%r5) /* cyc2ns(clock,cycle_delta) */ +3: ms %r0,__VDSO_TK_MULT(%r5) /* * tk->mult */ st %r0,24(%r15) - l %r0,__VDSO_NTP_MULT(%r5) + l %r0,__VDSO_TK_MULT(%r5) ltr %r1,%r1 mr %r0,%r0 jnm 4f - a %r0,__VDSO_NTP_MULT(%r5) + a %r0,__VDSO_TK_MULT(%r5) 4: al %r0,24(%r15) - srdl %r0,12 al %r0,__VDSO_XTIME_NSEC(%r5) /* + xtime */ al %r1,__VDSO_XTIME_NSEC+4(%r5) brc 12,5f @@ -51,6 +50,8 @@ __kernel_gettimeofday: 5: mvc 24(4,%r15),__VDSO_XTIME_SEC+4(%r5) cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ jne 1b + l %r4,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ + srdl %r0,0(%r4) /* >> tk->shift */ l %r4,24(%r15) /* get tv_sec from stack */ basr %r5,0 6: ltr %r0,%r0 diff --git a/arch/s390/kernel/vdso64/clock_gettime.S b/arch/s390/kernel/vdso64/clock_gettime.S index d46c95e..0add107 100644 --- a/arch/s390/kernel/vdso64/clock_gettime.S +++ b/arch/s390/kernel/vdso64/clock_gettime.S @@ -34,14 +34,15 @@ __kernel_clock_gettime: tmll %r4,0x0001 /* pending update ? loop */ jnz 0b stck 48(%r15) /* Store TOD clock */ + lgf %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ + lg %r0,__VDSO_XTIME_SEC(%r5) /* tk->xtime_sec */ + alg %r0,__VDSO_WTOM_SEC(%r5) /* + wall_to_monotonic.sec */ lg %r1,48(%r15) sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ - msgf %r1,__VDSO_NTP_MULT(%r5) /* * NTP adjustment */ - srlg %r1,%r1,12 /* cyc2ns(clock,cycle_delta) */ - alg %r1,__VDSO_XTIME_NSEC(%r5) /* + xtime */ - lg %r0,__VDSO_XTIME_SEC(%r5) - alg %r1,__VDSO_WTOM_NSEC(%r5) /* + wall_to_monotonic */ - alg %r0,__VDSO_WTOM_SEC(%r5) + msgf %r1,__VDSO_TK_MULT(%r5) /* * tk->mult */ + alg %r1,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */ + alg %r1,__VDSO_WTOM_NSEC(%r5) /* + wall_to_monotonic.nsec */ + srlg %r1,%r1,0(%r2) /* >> tk->shift */ clg %r4,__VDSO_UPD_COUNT(%r5) /* check update counter */ jne 0b larl %r5,13f @@ -62,12 +63,13 @@ __kernel_clock_gettime: tmll %r4,0x0001 /* pending update ? loop */ jnz 5b stck 48(%r15) /* Store TOD clock */ + lgf %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ lg %r1,48(%r15) sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ - msgf %r1,__VDSO_NTP_MULT(%r5) /* * NTP adjustment */ - srlg %r1,%r1,12 /* cyc2ns(clock,cycle_delta) */ - alg %r1,__VDSO_XTIME_NSEC(%r5) /* + xtime */ - lg %r0,__VDSO_XTIME_SEC(%r5) + msgf %r1,__VDSO_TK_MULT(%r5) /* * tk->mult */ + alg %r1,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */ + srlg %r1,%r1,0(%r2) /* >> tk->shift */ + lg %r0,__VDSO_XTIME_SEC(%r5) /* tk->xtime_sec */ clg %r4,__VDSO_UPD_COUNT(%r5) /* check update counter */ jne 5b larl %r5,13f diff --git a/arch/s390/kernel/vdso64/gettimeofday.S b/arch/s390/kernel/vdso64/gettimeofday.S index 36ee674..d0860d1 100644 --- a/arch/s390/kernel/vdso64/gettimeofday.S +++ b/arch/s390/kernel/vdso64/gettimeofday.S @@ -31,12 +31,13 @@ __kernel_gettimeofday: stck 48(%r15) /* Store TOD clock */ lg %r1,48(%r15) sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ - msgf %r1,__VDSO_NTP_MULT(%r5) /* * NTP adjustment */ - srlg %r1,%r1,12 /* cyc2ns(clock,cycle_delta) */ - alg %r1,__VDSO_XTIME_NSEC(%r5) /* + xtime.tv_nsec */ - lg %r0,__VDSO_XTIME_SEC(%r5) /* xtime.tv_sec */ + msgf %r1,__VDSO_TK_MULT(%r5) /* * tk->mult */ + alg %r1,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */ + lg %r0,__VDSO_XTIME_SEC(%r5) /* tk->xtime_sec */ clg %r4,__VDSO_UPD_COUNT(%r5) /* check update counter */ jne 0b + lgf %r5,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ + srlg %r1,%r1,0(%r5) /* >> tk->shift */ larl %r5,5f 2: clg %r1,0(%r5) jl 3f diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c index 97e03ca..dbdab3e 100644 --- a/arch/s390/lib/uaccess_pt.c +++ b/arch/s390/lib/uaccess_pt.c @@ -78,11 +78,14 @@ static size_t copy_in_kernel(size_t count, void __user *to, * contains the (negative) exception code. */ #ifdef CONFIG_64BIT + static unsigned long follow_table(struct mm_struct *mm, unsigned long address, int write) { unsigned long *table = (unsigned long *)__pa(mm->pgd); + if (unlikely(address > mm->context.asce_limit - 1)) + return -0x38UL; switch (mm->context.asce_bits & _ASCE_TYPE_MASK) { case _ASCE_TYPE_REGION1: table = table + ((address >> 53) & 0x7ff); diff --git a/arch/um/Makefile b/arch/um/Makefile index 48d92bb..36e658a 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -33,12 +33,11 @@ MODE_INCLUDE += -I$(srctree)/$(ARCH_DIR)/include/shared/skas HEADER_ARCH := $(SUBARCH) -# Additional ARCH settings for x86 -ifeq ($(SUBARCH),i386) - HEADER_ARCH := x86 +ifneq ($(filter $(SUBARCH),x86 x86_64 i386),) + HEADER_ARCH := x86 endif -ifeq ($(SUBARCH),x86_64) - HEADER_ARCH := x86 + +ifdef CONFIG_64BIT KBUILD_CFLAGS += -mcmodel=large endif diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c index 4d6fdf6..799d7e4 100644 --- a/arch/um/kernel/sysrq.c +++ b/arch/um/kernel/sysrq.c @@ -19,7 +19,7 @@ struct stack_frame { unsigned long return_address; }; -static void print_stack_trace(unsigned long *sp, unsigned long bp) +static void do_stack_trace(unsigned long *sp, unsigned long bp) { int reliable; unsigned long addr; @@ -94,5 +94,5 @@ void show_stack(struct task_struct *task, unsigned long *stack) } printk(KERN_CONT "\n"); - print_stack_trace(sp, bp); + do_stack_trace(sp, bp); } diff --git a/arch/x86/include/asm/trace/irq_vectors.h b/arch/x86/include/asm/trace/irq_vectors.h index 2874df2..4cab890 100644 --- a/arch/x86/include/asm/trace/irq_vectors.h +++ b/arch/x86/include/asm/trace/irq_vectors.h @@ -72,6 +72,17 @@ DEFINE_IRQ_VECTOR_EVENT(x86_platform_ipi); DEFINE_IRQ_VECTOR_EVENT(irq_work); /* + * We must dis-allow sampling irq_work_exit() because perf event sampling + * itself can cause irq_work, which would lead to an infinite loop; + * + * 1) irq_work_exit happens + * 2) generates perf sample + * 3) generates irq_work + * 4) goto 1 + */ +TRACE_EVENT_PERF_PERM(irq_work_exit, is_sampling_event(p_event) ? -EPERM : 0); + +/* * call_function - called when entering/exiting a call function interrupt * vector handler */ diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c index ef5356c..8502462 100644 --- a/crypto/algif_hash.c +++ b/crypto/algif_hash.c @@ -114,6 +114,9 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page, struct hash_ctx *ctx = ask->private; int err; + if (flags & MSG_SENDPAGE_NOTLAST) + flags |= MSG_MORE; + lock_sock(sk); sg_init_table(ctx->sgl.sg, 1); sg_set_page(ctx->sgl.sg, page, size, offset); diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index 6a6dfc0..a19c027 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -378,6 +378,9 @@ static ssize_t skcipher_sendpage(struct socket *sock, struct page *page, struct skcipher_sg_list *sgl; int err = -EINVAL; + if (flags & MSG_SENDPAGE_NOTLAST) + flags |= MSG_MORE; + lock_sock(sk); if (!ctx->more && ctx->used) goto unlock; diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c index f83300b..382ef0d 100644 --- a/crypto/asymmetric_keys/x509_public_key.c +++ b/crypto/asymmetric_keys/x509_public_key.c @@ -18,60 +18,12 @@ #include <linux/asn1_decoder.h> #include <keys/asymmetric-subtype.h> #include <keys/asymmetric-parser.h> -#include <keys/system_keyring.h> #include <crypto/hash.h> #include "asymmetric_keys.h" #include "public_key.h" #include "x509_parser.h" /* - * Find a key in the given keyring by issuer and authority. - */ -static struct key *x509_request_asymmetric_key( - struct key *keyring, - const char *signer, size_t signer_len, - const char *authority, size_t auth_len) -{ - key_ref_t key; - char *id; - - /* Construct an identifier. */ - id = kmalloc(signer_len + 2 + auth_len + 1, GFP_KERNEL); - if (!id) - return ERR_PTR(-ENOMEM); - - memcpy(id, signer, signer_len); - id[signer_len + 0] = ':'; - id[signer_len + 1] = ' '; - memcpy(id + signer_len + 2, authority, auth_len); - id[signer_len + 2 + auth_len] = 0; - - pr_debug("Look up: \"%s\"\n", id); - - key = keyring_search(make_key_ref(keyring, 1), - &key_type_asymmetric, id); - if (IS_ERR(key)) - pr_debug("Request for module key '%s' err %ld\n", - id, PTR_ERR(key)); - kfree(id); - - if (IS_ERR(key)) { - switch (PTR_ERR(key)) { - /* Hide some search errors */ - case -EACCES: - case -ENOTDIR: - case -EAGAIN: - return ERR_PTR(-ENOKEY); - default: - return ERR_CAST(key); - } - } - - pr_devel("<==%s() = 0 [%x]\n", __func__, key_serial(key_ref_to_ptr(key))); - return key_ref_to_ptr(key); -} - -/* * Set up the signature parameters in an X.509 certificate. This involves * digesting the signed data and extracting the signature. */ @@ -151,33 +103,6 @@ int x509_check_signature(const struct public_key *pub, EXPORT_SYMBOL_GPL(x509_check_signature); /* - * Check the new certificate against the ones in the trust keyring. If one of - * those is the signing key and validates the new certificate, then mark the - * new certificate as being trusted. - * - * Return 0 if the new certificate was successfully validated, 1 if we couldn't - * find a matching parent certificate in the trusted list and an error if there - * is a matching certificate but the signature check fails. - */ -static int x509_validate_trust(struct x509_certificate *cert, - struct key *trust_keyring) -{ - const struct public_key *pk; - struct key *key; - int ret = 1; - - key = x509_request_asymmetric_key(trust_keyring, - cert->issuer, strlen(cert->issuer), - cert->authority, - strlen(cert->authority)); - if (!IS_ERR(key)) { - pk = key->payload.data; - ret = x509_check_signature(pk, cert); - } - return ret; -} - -/* * Attempt to parse a data blob for a key as an X509 certificate. */ static int x509_key_preparse(struct key_preparsed_payload *prep) @@ -230,13 +155,9 @@ static int x509_key_preparse(struct key_preparsed_payload *prep) /* Check the signature on the key if it appears to be self-signed */ if (!cert->authority || strcmp(cert->fingerprint, cert->authority) == 0) { - ret = x509_check_signature(cert->pub, cert); /* self-signed */ + ret = x509_check_signature(cert->pub, cert); if (ret < 0) goto error_free_cert; - } else { - ret = x509_validate_trust(cert, system_trusted_keyring); - if (!ret) - prep->trusted = 1; } /* Propose a description */ diff --git a/drivers/acpi/acpica/acresrc.h b/drivers/acpi/acpica/acresrc.h index f691d0e..ff97430 100644 --- a/drivers/acpi/acpica/acresrc.h +++ b/drivers/acpi/acpica/acresrc.h @@ -184,7 +184,7 @@ acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer, struct acpi_buffer *output_buffer); acpi_status -acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, +acpi_rs_create_aml_resources(struct acpi_buffer *resource_list, struct acpi_buffer *output_buffer); acpi_status @@ -227,8 +227,8 @@ acpi_rs_get_list_length(u8 * aml_buffer, u32 aml_buffer_length, acpi_size * size_needed); acpi_status -acpi_rs_get_aml_length(struct acpi_resource *linked_list_buffer, - acpi_size * size_needed); +acpi_rs_get_aml_length(struct acpi_resource *resource_list, + acpi_size resource_list_size, acpi_size * size_needed); acpi_status acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c index 2437373..fd1ff54 100644 --- a/drivers/acpi/acpica/nsalloc.c +++ b/drivers/acpi/acpica/nsalloc.c @@ -106,6 +106,7 @@ struct acpi_namespace_node *acpi_ns_create_node(u32 name) void acpi_ns_delete_node(struct acpi_namespace_node *node) { union acpi_operand_object *obj_desc; + union acpi_operand_object *next_desc; ACPI_FUNCTION_NAME(ns_delete_node); @@ -114,12 +115,13 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node) acpi_ns_detach_object(node); /* - * Delete an attached data object if present (an object that was created - * and attached via acpi_attach_data). Note: After any normal object is - * detached above, the only possible remaining object is a data object. + * Delete an attached data object list if present (objects that were + * attached via acpi_attach_data). Note: After any normal object is + * detached above, the only possible remaining object(s) are data + * objects, in a linked list. */ obj_desc = node->object; - if (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) { + while (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) { /* Invoke the attached data deletion handler if present */ @@ -127,7 +129,15 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node) obj_desc->data.handler(node, obj_desc->data.pointer); } + next_desc = obj_desc->common.next_object; acpi_ut_remove_reference(obj_desc); + obj_desc = next_desc; + } + + /* Special case for the statically allocated root node */ + + if (node == acpi_gbl_root_node) { + return; } /* Now we can delete the node */ diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c index cc2fea9..4a0665b 100644 --- a/drivers/acpi/acpica/nsutils.c +++ b/drivers/acpi/acpica/nsutils.c @@ -593,24 +593,26 @@ struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle) void acpi_ns_terminate(void) { - union acpi_operand_object *obj_desc; + acpi_status status; ACPI_FUNCTION_TRACE(ns_terminate); /* - * 1) Free the entire namespace -- all nodes and objects - * - * Delete all object descriptors attached to namepsace nodes + * Free the entire namespace -- all nodes and all objects + * attached to the nodes */ acpi_ns_delete_namespace_subtree(acpi_gbl_root_node); - /* Detach any objects attached to the root */ + /* Delete any objects attached to the root node */ - obj_desc = acpi_ns_get_attached_object(acpi_gbl_root_node); - if (obj_desc) { - acpi_ns_detach_object(acpi_gbl_root_node); + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_VOID; } + acpi_ns_delete_node(acpi_gbl_root_node); + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace freed\n")); return_VOID; } diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c index b62a0f4..b60c9cf 100644 --- a/drivers/acpi/acpica/rscalc.c +++ b/drivers/acpi/acpica/rscalc.c @@ -174,6 +174,7 @@ acpi_rs_stream_option_length(u32 resource_length, * FUNCTION: acpi_rs_get_aml_length * * PARAMETERS: resource - Pointer to the resource linked list + * resource_list_size - Size of the resource linked list * size_needed - Where the required size is returned * * RETURN: Status @@ -185,16 +186,20 @@ acpi_rs_stream_option_length(u32 resource_length, ******************************************************************************/ acpi_status -acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed) +acpi_rs_get_aml_length(struct acpi_resource *resource, + acpi_size resource_list_size, acpi_size * size_needed) { acpi_size aml_size_needed = 0; + struct acpi_resource *resource_end; acpi_rs_length total_size; ACPI_FUNCTION_TRACE(rs_get_aml_length); /* Traverse entire list of internal resource descriptors */ - while (resource) { + resource_end = + ACPI_ADD_PTR(struct acpi_resource, resource, resource_list_size); + while (resource < resource_end) { /* Validate the descriptor type */ diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c index 65f3e1c..3a2ace9 100644 --- a/drivers/acpi/acpica/rscreate.c +++ b/drivers/acpi/acpica/rscreate.c @@ -418,22 +418,21 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, * * FUNCTION: acpi_rs_create_aml_resources * - * PARAMETERS: linked_list_buffer - Pointer to the resource linked list - * output_buffer - Pointer to the user's buffer + * PARAMETERS: resource_list - Pointer to the resource list buffer + * output_buffer - Where the AML buffer is returned * * RETURN: Status AE_OK if okay, else a valid acpi_status code. * If the output_buffer is too small, the error will be * AE_BUFFER_OVERFLOW and output_buffer->Length will point * to the size buffer needed. * - * DESCRIPTION: Takes the linked list of device resources and - * creates a bytestream to be used as input for the - * _SRS control method. + * DESCRIPTION: Converts a list of device resources to an AML bytestream + * to be used as input for the _SRS control method. * ******************************************************************************/ acpi_status -acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, +acpi_rs_create_aml_resources(struct acpi_buffer *resource_list, struct acpi_buffer *output_buffer) { acpi_status status; @@ -441,16 +440,16 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, ACPI_FUNCTION_TRACE(rs_create_aml_resources); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "LinkedListBuffer = %p\n", - linked_list_buffer)); + /* Params already validated, no need to re-validate here */ - /* - * Params already validated, so we don't re-validate here - * - * Pass the linked_list_buffer into a module that calculates - * the buffer size needed for the byte stream. - */ - status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ResourceList Buffer = %p\n", + resource_list->pointer)); + + /* Get the buffer size needed for the AML byte stream */ + + status = acpi_rs_get_aml_length(resource_list->pointer, + resource_list->length, + &aml_size_needed); ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n", (u32)aml_size_needed, acpi_format_exception(status))); @@ -467,10 +466,9 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, /* Do the conversion */ - status = - acpi_rs_convert_resources_to_aml(linked_list_buffer, - aml_size_needed, - output_buffer->pointer); + status = acpi_rs_convert_resources_to_aml(resource_list->pointer, + aml_size_needed, + output_buffer->pointer); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c index aef303d..14a7982 100644 --- a/drivers/acpi/acpica/rsutils.c +++ b/drivers/acpi/acpica/rsutils.c @@ -753,7 +753,7 @@ acpi_rs_set_srs_method_data(struct acpi_namespace_node *node, * Convert the linked list into a byte stream */ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer); + status = acpi_rs_create_aml_resources(in_buffer, &buffer); if (ACPI_FAILURE(status)) { goto cleanup; } diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c index 1a67b39..03ae8af 100644 --- a/drivers/acpi/acpica/utdebug.c +++ b/drivers/acpi/acpica/utdebug.c @@ -185,6 +185,7 @@ acpi_debug_print(u32 requested_debug_level, } acpi_gbl_prev_thread_id = thread_id; + acpi_gbl_nesting_level = 0; } /* @@ -193,13 +194,21 @@ acpi_debug_print(u32 requested_debug_level, */ acpi_os_printf("%9s-%04ld ", module_name, line_number); +#ifdef ACPI_EXEC_APP + /* + * For acpi_exec only, emit the thread ID and nesting level. + * Note: nesting level is really only useful during a single-thread + * execution. Otherwise, multiple threads will keep resetting the + * level. + */ if (ACPI_LV_THREADS & acpi_dbg_level) { acpi_os_printf("[%u] ", (u32)thread_id); } - acpi_os_printf("[%02ld] %-22.22s: ", - acpi_gbl_nesting_level, - acpi_ut_trim_function_name(function_name)); + acpi_os_printf("[%02ld] ", acpi_gbl_nesting_level); +#endif + + acpi_os_printf("%-22.22s: ", acpi_ut_trim_function_name(function_name)); va_start(args, format); acpi_os_vprintf(format, args); @@ -420,7 +429,9 @@ acpi_ut_exit(u32 line_number, component_id, "%s\n", acpi_gbl_fn_exit_str); } - acpi_gbl_nesting_level--; + if (acpi_gbl_nesting_level) { + acpi_gbl_nesting_level--; + } } ACPI_EXPORT_SYMBOL(acpi_ut_exit) @@ -467,7 +478,9 @@ acpi_ut_status_exit(u32 line_number, } } - acpi_gbl_nesting_level--; + if (acpi_gbl_nesting_level) { + acpi_gbl_nesting_level--; + } } ACPI_EXPORT_SYMBOL(acpi_ut_status_exit) @@ -504,7 +517,9 @@ acpi_ut_value_exit(u32 line_number, ACPI_FORMAT_UINT64(value)); } - acpi_gbl_nesting_level--; + if (acpi_gbl_nesting_level) { + acpi_gbl_nesting_level--; + } } ACPI_EXPORT_SYMBOL(acpi_ut_value_exit) @@ -540,7 +555,9 @@ acpi_ut_ptr_exit(u32 line_number, ptr); } - acpi_gbl_nesting_level--; + if (acpi_gbl_nesting_level) { + acpi_gbl_nesting_level--; + } } #endif diff --git a/drivers/acpi/nvs.c b/drivers/acpi/nvs.c index 266bc58..386a9fe 100644 --- a/drivers/acpi/nvs.c +++ b/drivers/acpi/nvs.c @@ -13,7 +13,6 @@ #include <linux/slab.h> #include <linux/acpi.h> #include <linux/acpi_io.h> -#include <acpi/acpiosxf.h> /* ACPI NVS regions, APEI may use it */ diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 0703bff..20360e4 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -65,6 +65,9 @@ static struct acpi_scan_handler pci_root_handler = { .ids = root_device_ids, .attach = acpi_pci_root_add, .detach = acpi_pci_root_remove, + .hotplug = { + .ignore = true, + }, }; static DEFINE_MUTEX(osc_lock); diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 15daa21..fd39459 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1772,7 +1772,7 @@ static void acpi_scan_init_hotplug(acpi_handle handle, int type) */ list_for_each_entry(hwid, &pnp.ids, list) { handler = acpi_scan_match_handler(hwid->id, NULL); - if (handler) { + if (handler && !handler->hotplug.ignore) { acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, acpi_hotplug_notify_cb, handler); break; diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 14df305..721e949 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -525,7 +525,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state) * generate wakeup events. */ if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) { - acpi_event_status pwr_btn_status; + acpi_event_status pwr_btn_status = ACPI_EVENT_FLAG_DISABLED; acpi_get_event_status(ACPI_EVENT_POWER_BUTTON, &pwr_btn_status); diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index db52936..6dbc3ca 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -309,7 +309,7 @@ static void acpi_table_attr_init(struct acpi_table_attr *table_attr, sprintf(table_attr->name + ACPI_NAME_SIZE, "%d", table_attr->instance); - table_attr->attr.size = 0; + table_attr->attr.size = table_header->length; table_attr->attr.read = acpi_table_show; table_attr->attr.attr.name = table_attr->name; table_attr->attr.attr.mode = 0400; @@ -354,8 +354,9 @@ static int acpi_tables_sysfs_init(void) { struct acpi_table_attr *table_attr; struct acpi_table_header *table_header = NULL; - int table_index = 0; - int result; + int table_index; + acpi_status status; + int ret; tables_kobj = kobject_create_and_add("tables", acpi_kobj); if (!tables_kobj) @@ -365,33 +366,34 @@ static int acpi_tables_sysfs_init(void) if (!dynamic_tables_kobj) goto err_dynamic_tables; - do { - result = acpi_get_table_by_index(table_index, &table_header); - if (!result) { - table_index++; - table_attr = NULL; - table_attr = - kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL); - if (!table_attr) - return -ENOMEM; - - acpi_table_attr_init(table_attr, table_header); - result = - sysfs_create_bin_file(tables_kobj, - &table_attr->attr); - if (result) { - kfree(table_attr); - return result; - } else - list_add_tail(&table_attr->node, - &acpi_table_attr_list); + for (table_index = 0;; table_index++) { + status = acpi_get_table_by_index(table_index, &table_header); + + if (status == AE_BAD_PARAMETER) + break; + + if (ACPI_FAILURE(status)) + continue; + + table_attr = NULL; + table_attr = kzalloc(sizeof(*table_attr), GFP_KERNEL); + if (!table_attr) + return -ENOMEM; + + acpi_table_attr_init(table_attr, table_header); + ret = sysfs_create_bin_file(tables_kobj, &table_attr->attr); + if (ret) { + kfree(table_attr); + return ret; } - } while (!result); + list_add_tail(&table_attr->node, &acpi_table_attr_list); + } + kobject_uevent(tables_kobj, KOBJ_ADD); kobject_uevent(dynamic_tables_kobj, KOBJ_ADD); - result = acpi_install_table_handler(acpi_sysfs_table_handler, NULL); + status = acpi_install_table_handler(acpi_sysfs_table_handler, NULL); - return result == AE_OK ? 0 : -EINVAL; + return ACPI_FAILURE(status) ? -EINVAL : 0; err_dynamic_tables: kobject_put(tables_kobj); err: diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index e2903d0..14f1e95 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -435,6 +435,8 @@ static const struct pci_device_id ahci_pci_tbl[] = { .driver_data = board_ahci_yes_fbs }, /* 88se9172 on some Gigabyte */ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3), .driver_data = board_ahci_yes_fbs }, + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230), + .driver_data = board_ahci_yes_fbs }, /* Promise */ { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */ diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c index f955431..4b231ba 100644 --- a/drivers/ata/ahci_platform.c +++ b/drivers/ata/ahci_platform.c @@ -329,6 +329,7 @@ static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_suspend, ahci_resume); static const struct of_device_id ahci_of_match[] = { { .compatible = "snps,spear-ahci", }, { .compatible = "snps,exynos5440-ahci", }, + { .compatible = "ibm,476gtr-ahci", }, {}, }; MODULE_DEVICE_TABLE(of, ahci_of_match); diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 81a94a3..75b9367 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -6304,10 +6304,9 @@ static void ata_port_detach(struct ata_port *ap) for (i = 0; i < SATA_PMP_MAX_PORTS; i++) ata_tlink_delete(&ap->pmp_link[i]); } - ata_tport_delete(ap); - /* remove the associated SCSI host */ scsi_remove_host(ap->scsi_host); + ata_tport_delete(ap); } /** diff --git a/drivers/ata/libata-zpodd.c b/drivers/ata/libata-zpodd.c index 68f9e32..88949c6 100644 --- a/drivers/ata/libata-zpodd.c +++ b/drivers/ata/libata-zpodd.c @@ -88,15 +88,13 @@ static enum odd_mech_type zpodd_get_mech_type(struct ata_device *dev) static bool odd_can_poweroff(struct ata_device *ata_dev) { acpi_handle handle; - acpi_status status; struct acpi_device *acpi_dev; handle = ata_dev_acpi_handle(ata_dev); if (!handle) return false; - status = acpi_bus_get_device(handle, &acpi_dev); - if (ACPI_FAILURE(status)) + if (acpi_bus_get_device(handle, &acpi_dev)) return false; return acpi_device_can_poweroff(acpi_dev); diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c index e88690e..73492dd 100644 --- a/drivers/ata/pata_arasan_cf.c +++ b/drivers/ata/pata_arasan_cf.c @@ -319,6 +319,7 @@ static int cf_init(struct arasan_cf_dev *acdev) ret = clk_set_rate(acdev->clk, 166000000); if (ret) { dev_warn(acdev->host->dev, "clock set rate failed"); + clk_disable_unprepare(acdev->clk); return ret; } diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index bdb953e..5c07a56 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -87,6 +87,7 @@ config ARM_ARCH_TIMER config ARM_ARCH_TIMER_EVTSTREAM bool "Support for ARM architected timer event stream generation" default y if ARM_ARCH_TIMER + depends on ARM_ARCH_TIMER help This option enables support for event stream generation based on the ARM architected timer. It is used for waking up CPUs executing diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c index 4aac9ee..3cf1283 100644 --- a/drivers/clocksource/sh_mtu2.c +++ b/drivers/clocksource/sh_mtu2.c @@ -313,8 +313,20 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev) goto err1; } - return sh_mtu2_register(p, (char *)dev_name(&p->pdev->dev), - cfg->clockevent_rating); + ret = clk_prepare(p->clk); + if (ret < 0) + goto err2; + + ret = sh_mtu2_register(p, (char *)dev_name(&p->pdev->dev), + cfg->clockevent_rating); + if (ret < 0) + goto err3; + + return 0; + err3: + clk_unprepare(p->clk); + err2: + clk_put(p->clk); err1: iounmap(p->mapbase); err0: diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c index 78b8dae..63557cd 100644 --- a/drivers/clocksource/sh_tmu.c +++ b/drivers/clocksource/sh_tmu.c @@ -472,12 +472,26 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev) ret = PTR_ERR(p->clk); goto err1; } + + ret = clk_prepare(p->clk); + if (ret < 0) + goto err2; + p->cs_enabled = false; p->enable_count = 0; - return sh_tmu_register(p, (char *)dev_name(&p->pdev->dev), - cfg->clockevent_rating, - cfg->clocksource_rating); + ret = sh_tmu_register(p, (char *)dev_name(&p->pdev->dev), + cfg->clockevent_rating, + cfg->clocksource_rating); + if (ret < 0) + goto err3; + + return 0; + + err3: + clk_unprepare(p->clk); + err2: + clk_put(p->clk); err1: iounmap(p->mapbase); err0: diff --git a/drivers/cpufreq/exynos4210-cpufreq.c b/drivers/cpufreq/exynos4210-cpufreq.c index f2c7506..dfd1643 100644 --- a/drivers/cpufreq/exynos4210-cpufreq.c +++ b/drivers/cpufreq/exynos4210-cpufreq.c @@ -157,4 +157,3 @@ err_moutcore: pr_debug("%s: failed initialization\n", __func__); return -EINVAL; } -EXPORT_SYMBOL(exynos4210_cpufreq_init); diff --git a/drivers/cpufreq/exynos4x12-cpufreq.c b/drivers/cpufreq/exynos4x12-cpufreq.c index 8683304..efad5e6 100644 --- a/drivers/cpufreq/exynos4x12-cpufreq.c +++ b/drivers/cpufreq/exynos4x12-cpufreq.c @@ -211,4 +211,3 @@ err_moutcore: pr_debug("%s: failed initialization\n", __func__); return -EINVAL; } -EXPORT_SYMBOL(exynos4x12_cpufreq_init); diff --git a/drivers/cpufreq/exynos5250-cpufreq.c b/drivers/cpufreq/exynos5250-cpufreq.c index 9fae466..8feda86 100644 --- a/drivers/cpufreq/exynos5250-cpufreq.c +++ b/drivers/cpufreq/exynos5250-cpufreq.c @@ -236,4 +236,3 @@ err_moutcore: pr_err("%s: failed initialization\n", __func__); return -EINVAL; } -EXPORT_SYMBOL(exynos5250_cpufreq_init); diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c index f42df7e..b7309c3 100644 --- a/drivers/cpufreq/tegra-cpufreq.c +++ b/drivers/cpufreq/tegra-cpufreq.c @@ -142,10 +142,8 @@ static int tegra_target(struct cpufreq_policy *policy, unsigned int index) mutex_lock(&tegra_cpu_lock); - if (is_suspended) { - ret = -EBUSY; + if (is_suspended) goto out; - } freq = freq_table[index].frequency; diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c index 72c927d..54c18c2 100644 --- a/drivers/gpio/gpio-bcm-kona.c +++ b/drivers/gpio/gpio-bcm-kona.c @@ -158,7 +158,7 @@ static int bcm_kona_gpio_get(struct gpio_chip *chip, unsigned gpio) spin_unlock_irqrestore(&kona_gpio->lock, flags); /* return the specified bit status */ - return !!(val & bit); + return !!(val & BIT(bit)); } static int bcm_kona_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) diff --git a/drivers/gpio/gpio-msm-v2.c b/drivers/gpio/gpio-msm-v2.c index f7a0cc4..7b37300 100644 --- a/drivers/gpio/gpio-msm-v2.c +++ b/drivers/gpio/gpio-msm-v2.c @@ -102,7 +102,7 @@ struct msm_gpio_dev { DECLARE_BITMAP(wake_irqs, MAX_NR_GPIO); DECLARE_BITMAP(dual_edge_irqs, MAX_NR_GPIO); struct irq_domain *domain; - unsigned int summary_irq; + int summary_irq; void __iomem *msm_tlmm_base; }; diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c index 3c3321f..db31290 100644 --- a/drivers/gpio/gpio-mvebu.c +++ b/drivers/gpio/gpio-mvebu.c @@ -79,7 +79,7 @@ struct mvebu_gpio_chip { spinlock_t lock; void __iomem *membase; void __iomem *percpu_membase; - unsigned int irqbase; + int irqbase; struct irq_domain *domain; int soc_variant; }; diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index f22f7f3..b4d4211 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -286,11 +286,6 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id) if (!chip->base) return -ENOMEM; - chip->domain = irq_domain_add_simple(adev->dev.of_node, PL061_GPIO_NR, - irq_base, &pl061_domain_ops, chip); - if (!chip->domain) - return -ENODEV; - spin_lock_init(&chip->lock); chip->gc.request = pl061_gpio_request; @@ -320,6 +315,11 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id) irq_set_chained_handler(irq, pl061_irq_handler); irq_set_handler_data(irq, chip); + chip->domain = irq_domain_add_simple(adev->dev.of_node, PL061_GPIO_NR, + irq_base, &pl061_domain_ops, chip); + if (!chip->domain) + return -ENODEV; + for (i = 0; i < PL061_GPIO_NR; i++) { if (pdata) { if (pdata->directions & (1 << i)) diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c index d3f15ae..fe088a3 100644 --- a/drivers/gpio/gpio-rcar.c +++ b/drivers/gpio/gpio-rcar.c @@ -381,7 +381,7 @@ static int gpio_rcar_probe(struct platform_device *pdev) if (!p->irq_domain) { ret = -ENXIO; dev_err(&pdev->dev, "cannot initialize irq domain\n"); - goto err1; + goto err0; } if (devm_request_irq(&pdev->dev, irq->start, diff --git a/drivers/gpio/gpio-tb10x.c b/drivers/gpio/gpio-tb10x.c index 0502b9a..da071dd 100644 --- a/drivers/gpio/gpio-tb10x.c +++ b/drivers/gpio/gpio-tb10x.c @@ -132,6 +132,7 @@ static int tb10x_gpio_direction_out(struct gpio_chip *chip, int mask = BIT(offset); int val = TB10X_GPIO_DIR_OUT << offset; + tb10x_gpio_set(chip, offset, value); tb10x_set_bits(tb10x_gpio, OFFSET_TO_REG_DDR, mask, val); return 0; diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c index 0c7e891..b97d6a6 100644 --- a/drivers/gpio/gpio-twl4030.c +++ b/drivers/gpio/gpio-twl4030.c @@ -354,17 +354,18 @@ static void twl_set(struct gpio_chip *chip, unsigned offset, int value) static int twl_direction_out(struct gpio_chip *chip, unsigned offset, int value) { struct gpio_twl4030_priv *priv = to_gpio_twl4030(chip); + int ret = -EINVAL; mutex_lock(&priv->mutex); if (offset < TWL4030_GPIO_MAX) - twl4030_set_gpio_dataout(offset, value); + ret = twl4030_set_gpio_direction(offset, 0); priv->direction |= BIT(offset); mutex_unlock(&priv->mutex); twl_set(chip, offset, value); - return 0; + return ret; } static int twl_to_irq(struct gpio_chip *chip, unsigned offset) @@ -435,7 +436,8 @@ static int gpio_twl4030_debounce(u32 debounce, u8 mmc_cd) static int gpio_twl4030_remove(struct platform_device *pdev); -static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev) +static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev, + struct twl4030_gpio_platform_data *pdata) { struct twl4030_gpio_platform_data *omap_twl_info; @@ -443,6 +445,9 @@ static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev) if (!omap_twl_info) return NULL; + if (pdata) + *omap_twl_info = *pdata; + omap_twl_info->use_leds = of_property_read_bool(dev->of_node, "ti,use-leds"); @@ -500,7 +505,7 @@ no_irqs: mutex_init(&priv->mutex); if (node) - pdata = of_gpio_twl4030(&pdev->dev); + pdata = of_gpio_twl4030(&pdev->dev, pdata); if (pdata == NULL) { dev_err(&pdev->dev, "Platform data is missing\n"); diff --git a/drivers/gpio/gpio-ucb1400.c b/drivers/gpio/gpio-ucb1400.c index 1a605f2..06fb5cf 100644 --- a/drivers/gpio/gpio-ucb1400.c +++ b/drivers/gpio/gpio-ucb1400.c @@ -105,3 +105,4 @@ module_platform_driver(ucb1400_gpio_driver); MODULE_DESCRIPTION("Philips UCB1400 GPIO driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:ucb1400_gpio"); diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 4e10b10..ac53a95 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -14,6 +14,7 @@ #include <linux/idr.h> #include <linux/slab.h> #include <linux/acpi.h> +#include <linux/gpio/driver.h> #define CREATE_TRACE_POINTS #include <trace/events/gpio.h> @@ -1308,6 +1309,18 @@ struct gpio_chip *gpiochip_find(void *data, } EXPORT_SYMBOL_GPL(gpiochip_find); +static int gpiochip_match_name(struct gpio_chip *chip, void *data) +{ + const char *name = data; + + return !strcmp(chip->label, name); +} + +static struct gpio_chip *find_chip_by_name(const char *name) +{ + return gpiochip_find((void *)name, gpiochip_match_name); +} + #ifdef CONFIG_PINCTRL /** @@ -1341,8 +1354,10 @@ int gpiochip_add_pingroup_range(struct gpio_chip *chip, ret = pinctrl_get_group_pins(pctldev, pin_group, &pin_range->range.pins, &pin_range->range.npins); - if (ret < 0) + if (ret < 0) { + kfree(pin_range); return ret; + } pinctrl_add_gpio_range(pctldev, &pin_range->range); @@ -2260,26 +2275,10 @@ void gpiod_add_table(struct gpiod_lookup *table, size_t size) mutex_unlock(&gpio_lookup_lock); } -/* - * Caller must have a acquired gpio_lookup_lock - */ -static struct gpio_chip *find_chip_by_name(const char *name) -{ - struct gpio_chip *chip = NULL; - - list_for_each_entry(chip, &gpio_lookup_list, list) { - if (chip->label == NULL) - continue; - if (!strcmp(chip->label, name)) - break; - } - - return chip; -} - #ifdef CONFIG_OF static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id, - unsigned int idx, unsigned long *flags) + unsigned int idx, + enum gpio_lookup_flags *flags) { char prop_name[32]; /* 32 is max size of property name */ enum of_gpio_flags of_flags; @@ -2297,20 +2296,22 @@ static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id, return desc; if (of_flags & OF_GPIO_ACTIVE_LOW) - *flags |= GPIOF_ACTIVE_LOW; + *flags |= GPIO_ACTIVE_LOW; return desc; } #else static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id, - unsigned int idx, unsigned long *flags) + unsigned int idx, + enum gpio_lookup_flags *flags) { return ERR_PTR(-ENODEV); } #endif static struct gpio_desc *acpi_find_gpio(struct device *dev, const char *con_id, - unsigned int idx, unsigned long *flags) + unsigned int idx, + enum gpio_lookup_flags *flags) { struct acpi_gpio_info info; struct gpio_desc *desc; @@ -2320,13 +2321,14 @@ static struct gpio_desc *acpi_find_gpio(struct device *dev, const char *con_id, return desc; if (info.gpioint && info.active_low) - *flags |= GPIOF_ACTIVE_LOW; + *flags |= GPIO_ACTIVE_LOW; return desc; } static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id, - unsigned int idx, unsigned long *flags) + unsigned int idx, + enum gpio_lookup_flags *flags) { const char *dev_id = dev ? dev_name(dev) : NULL; struct gpio_desc *desc = ERR_PTR(-ENODEV); @@ -2418,7 +2420,7 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev, { struct gpio_desc *desc; int status; - unsigned long flags = 0; + enum gpio_lookup_flags flags = 0; dev_dbg(dev, "GPIO lookup for consumer %s\n", con_id); @@ -2444,8 +2446,12 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev, if (status < 0) return ERR_PTR(status); - if (flags & GPIOF_ACTIVE_LOW) + if (flags & GPIO_ACTIVE_LOW) set_bit(FLAG_ACTIVE_LOW, &desc->flags); + if (flags & GPIO_OPEN_DRAIN) + set_bit(FLAG_OPEN_DRAIN, &desc->flags); + if (flags & GPIO_OPEN_SOURCE) + set_bit(FLAG_OPEN_SOURCE, &desc->flags); return desc; } diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index bd2bca3..c22c309 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -516,7 +516,7 @@ int drm_sysfs_device_add(struct drm_minor *minor) minor_str = "card%d"; minor->kdev = kzalloc(sizeof(*minor->kdev), GFP_KERNEL); - if (!minor->dev) { + if (!minor->kdev) { r = -ENOMEM; goto error; } diff --git a/drivers/gpu/drm/nouveau/nouveau_hwmon.c b/drivers/gpu/drm/nouveau/nouveau_hwmon.c index 38a4db5..4aff04f 100644 --- a/drivers/gpu/drm/nouveau/nouveau_hwmon.c +++ b/drivers/gpu/drm/nouveau/nouveau_hwmon.c @@ -630,7 +630,6 @@ error: hwmon->hwmon = NULL; return ret; #else - hwmon->hwmon = NULL; return 0; #endif } diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c index 0109a96..821ab7b 100644 --- a/drivers/gpu/drm/qxl/qxl_release.c +++ b/drivers/gpu/drm/qxl/qxl_release.c @@ -92,6 +92,7 @@ qxl_release_free(struct qxl_device *qdev, - DRM_FILE_OFFSET); qxl_fence_remove_release(&bo->fence, release->id); qxl_bo_unref(&bo); + kfree(entry); } spin_lock(&qdev->release_idr_lock); idr_remove(&qdev->release_idr, release->id); diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 329fbb9..34e2d39 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -460,6 +460,7 @@ config HID_MULTITOUCH - Stantum multitouch panels - Touch International Panels - Unitec Panels + - Wistron optical touch panels - XAT optical touch panels - Xiroku optical touch panels - Zytronic touch panels diff --git a/drivers/hid/hid-appleir.c b/drivers/hid/hid-appleir.c index a42e6a3..0e6a42d 100644 --- a/drivers/hid/hid-appleir.c +++ b/drivers/hid/hid-appleir.c @@ -297,6 +297,9 @@ static int appleir_probe(struct hid_device *hid, const struct hid_device_id *id) appleir->hid = hid; + /* force input as some remotes bypass the input registration */ + hid->quirks |= HID_QUIRK_HIDINPUT_FORCE; + spin_lock_init(&appleir->lock); setup_timer(&appleir->key_up_timer, key_up_tick, (unsigned long) appleir); diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 8c10f27..253fe23 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1723,6 +1723,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) }, + { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_MANTICORE) }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) }, @@ -1879,7 +1880,6 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) }, - { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO2, USB_DEVICE_ID_NINTENDO_WIIMOTE) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) }, { } }; diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 7655962..f9304cb 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -489,6 +489,7 @@ #define USB_VENDOR_ID_KYE 0x0458 #define USB_DEVICE_ID_KYE_ERGO_525V 0x0087 #define USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE 0x0138 +#define USB_DEVICE_ID_GENIUS_MANTICORE 0x0153 #define USB_DEVICE_ID_GENIUS_GX_IMPERATOR 0x4018 #define USB_DEVICE_ID_KYE_GPEN_560 0x5003 #define USB_DEVICE_ID_KYE_EASYPEN_I405X 0x5010 @@ -640,7 +641,6 @@ #define USB_DEVICE_ID_NEXTWINDOW_TOUCHSCREEN 0x0003 #define USB_VENDOR_ID_NINTENDO 0x057e -#define USB_VENDOR_ID_NINTENDO2 0x054c #define USB_DEVICE_ID_NINTENDO_WIIMOTE 0x0306 #define USB_DEVICE_ID_NINTENDO_WIIMOTE2 0x0330 @@ -902,6 +902,9 @@ #define USB_DEVICE_ID_SUPER_DUAL_BOX_PRO 0x8802 #define USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO 0x8804 +#define USB_VENDOR_ID_WISTRON 0x0fb8 +#define USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH 0x1109 + #define USB_VENDOR_ID_X_TENSIONS 0x1ae7 #define USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE 0x9001 diff --git a/drivers/hid/hid-kye.c b/drivers/hid/hid-kye.c index 7384512..ecb5ca6 100644 --- a/drivers/hid/hid-kye.c +++ b/drivers/hid/hid-kye.c @@ -341,6 +341,9 @@ static __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc, case USB_DEVICE_ID_GENIUS_GX_IMPERATOR: rdesc = kye_consumer_control_fixup(hdev, rdesc, rsize, 83, "Genius Gx Imperator Keyboard"); + case USB_DEVICE_ID_GENIUS_MANTICORE: + rdesc = kye_consumer_control_fixup(hdev, rdesc, rsize, 104, + "Genius Manticore Keyboard"); break; } return rdesc; @@ -418,6 +421,14 @@ static int kye_probe(struct hid_device *hdev, const struct hid_device_id *id) goto enabling_err; } break; + case USB_DEVICE_ID_GENIUS_MANTICORE: + /* + * The manticore keyboard needs to have all the interfaces + * opened at least once to be fully functional. + */ + if (hid_hw_open(hdev)) + hid_hw_close(hdev); + break; } return 0; @@ -439,6 +450,8 @@ static const struct hid_device_id kye_devices[] = { USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) }, + { HID_USB_DEVICE(USB_VENDOR_ID_KYE, + USB_DEVICE_ID_GENIUS_MANTICORE) }, { } }; MODULE_DEVICE_TABLE(hid, kye_devices); diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index a2cedb8..d83b1e8 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -1335,6 +1335,12 @@ static const struct hid_device_id mt_devices[] = { { .driver_data = MT_CLS_NSMU, MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, + + /* Wistron panels */ + { .driver_data = MT_CLS_NSMU, + MT_USB_DEVICE(USB_VENDOR_ID_WISTRON, + USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) }, + /* XAT */ { .driver_data = MT_CLS_NSMU, MT_USB_DEVICE(USB_VENDOR_ID_XAT, diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c index da551d1..098af2f8 100644 --- a/drivers/hid/hid-sony.c +++ b/drivers/hid/hid-sony.c @@ -225,6 +225,13 @@ static const unsigned int buzz_keymap[] = { struct sony_sc { unsigned long quirks; +#ifdef CONFIG_SONY_FF + struct work_struct rumble_worker; + struct hid_device *hdev; + __u8 left; + __u8 right; +#endif + void *extra; }; @@ -615,9 +622,9 @@ static void buzz_remove(struct hid_device *hdev) } #ifdef CONFIG_SONY_FF -static int sony_play_effect(struct input_dev *dev, void *data, - struct ff_effect *effect) +static void sony_rumble_worker(struct work_struct *work) { + struct sony_sc *sc = container_of(work, struct sony_sc, rumble_worker); unsigned char buf[] = { 0x01, 0x00, 0xff, 0x00, 0xff, 0x00, @@ -628,21 +635,28 @@ static int sony_play_effect(struct input_dev *dev, void *data, 0xff, 0x27, 0x10, 0x00, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00 }; - __u8 left; - __u8 right; + + buf[3] = sc->right; + buf[5] = sc->left; + + sc->hdev->hid_output_raw_report(sc->hdev, buf, sizeof(buf), + HID_OUTPUT_REPORT); +} + +static int sony_play_effect(struct input_dev *dev, void *data, + struct ff_effect *effect) +{ struct hid_device *hid = input_get_drvdata(dev); + struct sony_sc *sc = hid_get_drvdata(hid); if (effect->type != FF_RUMBLE) return 0; - left = effect->u.rumble.strong_magnitude / 256; - right = effect->u.rumble.weak_magnitude ? 1 : 0; - - buf[3] = right; - buf[5] = left; + sc->left = effect->u.rumble.strong_magnitude / 256; + sc->right = effect->u.rumble.weak_magnitude ? 1 : 0; - return hid->hid_output_raw_report(hid, buf, sizeof(buf), - HID_OUTPUT_REPORT); + schedule_work(&sc->rumble_worker); + return 0; } static int sony_init_ff(struct hid_device *hdev) @@ -650,16 +664,31 @@ static int sony_init_ff(struct hid_device *hdev) struct hid_input *hidinput = list_entry(hdev->inputs.next, struct hid_input, list); struct input_dev *input_dev = hidinput->input; + struct sony_sc *sc = hid_get_drvdata(hdev); + + sc->hdev = hdev; + INIT_WORK(&sc->rumble_worker, sony_rumble_worker); input_set_capability(input_dev, EV_FF, FF_RUMBLE); return input_ff_create_memless(input_dev, NULL, sony_play_effect); } +static void sony_destroy_ff(struct hid_device *hdev) +{ + struct sony_sc *sc = hid_get_drvdata(hdev); + + cancel_work_sync(&sc->rumble_worker); +} + #else static int sony_init_ff(struct hid_device *hdev) { return 0; } + +static void sony_destroy_ff(struct hid_device *hdev) +{ +} #endif static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id) @@ -728,6 +757,8 @@ static void sony_remove(struct hid_device *hdev) if (sc->quirks & BUZZ_CONTROLLER) buzz_remove(hdev); + sony_destroy_ff(hdev); + hid_hw_stop(hdev); } diff --git a/drivers/hid/hid-wiimote-core.c b/drivers/hid/hid-wiimote-core.c index 1446f52..abb20db 100644 --- a/drivers/hid/hid-wiimote-core.c +++ b/drivers/hid/hid-wiimote-core.c @@ -834,8 +834,7 @@ static void wiimote_init_set_type(struct wiimote_data *wdata, goto done; } - if (vendor == USB_VENDOR_ID_NINTENDO || - vendor == USB_VENDOR_ID_NINTENDO2) { + if (vendor == USB_VENDOR_ID_NINTENDO) { if (product == USB_DEVICE_ID_NINTENDO_WIIMOTE) { devtype = WIIMOTE_DEV_GEN10; goto done; @@ -1856,8 +1855,6 @@ static void wiimote_hid_remove(struct hid_device *hdev) static const struct hid_device_id wiimote_hid_devices[] = { { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) }, - { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO2, - USB_DEVICE_ID_NINTENDO_WIIMOTE) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) }, { } diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c index 93b00d7..cedc6da 100644 --- a/drivers/hid/uhid.c +++ b/drivers/hid/uhid.c @@ -287,7 +287,7 @@ static int uhid_event_from_user(const char __user *buffer, size_t len, */ struct uhid_create_req_compat *compat; - compat = kmalloc(sizeof(*compat), GFP_KERNEL); + compat = kzalloc(sizeof(*compat), GFP_KERNEL); if (!compat) return -ENOMEM; diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c index 1d7ff46..dafc63c 100644 --- a/drivers/hwmon/asus_atk0110.c +++ b/drivers/hwmon/asus_atk0110.c @@ -18,7 +18,6 @@ #include <linux/err.h> #include <acpi/acpi.h> -#include <acpi/acpixf.h> #include <acpi/acpi_drivers.h> #include <acpi/acpi_bus.h> diff --git a/drivers/i2c/busses/i2c-bcm-kona.c b/drivers/i2c/busses/i2c-bcm-kona.c index 036cf03..18a74a6 100644 --- a/drivers/i2c/busses/i2c-bcm-kona.c +++ b/drivers/i2c/busses/i2c-bcm-kona.c @@ -20,7 +20,6 @@ #include <linux/platform_device.h> #include <linux/clk.h> #include <linux/io.h> -#include <linux/clk.h> #include <linux/slab.h> /* Hardware register offsets and field defintions */ @@ -891,7 +890,7 @@ static const struct of_device_id bcm_kona_i2c_of_match[] = { {.compatible = "brcm,kona-i2c",}, {}, }; -MODULE_DEVICE_TABLE(of, kona_i2c_of_match); +MODULE_DEVICE_TABLE(of, bcm_kona_i2c_of_match); static struct platform_driver bcm_kona_i2c_driver = { .driver = { diff --git a/drivers/i2c/busses/i2c-bcm2835.c b/drivers/i2c/busses/i2c-bcm2835.c index d7e8600..77df97b 100644 --- a/drivers/i2c/busses/i2c-bcm2835.c +++ b/drivers/i2c/busses/i2c-bcm2835.c @@ -299,6 +299,7 @@ static int bcm2835_i2c_probe(struct platform_device *pdev) strlcpy(adap->name, "bcm2835 I2C adapter", sizeof(adap->name)); adap->algo = &bcm2835_i2c_algo; adap->dev.parent = &pdev->dev; + adap->dev.of_node = pdev->dev.of_node; bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, 0); diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c index ff05d9f..af0b583 100644 --- a/drivers/i2c/busses/i2c-davinci.c +++ b/drivers/i2c/busses/i2c-davinci.c @@ -125,12 +125,12 @@ static struct davinci_i2c_platform_data davinci_i2c_platform_data_default = { static inline void davinci_i2c_write_reg(struct davinci_i2c_dev *i2c_dev, int reg, u16 val) { - __raw_writew(val, i2c_dev->base + reg); + writew_relaxed(val, i2c_dev->base + reg); } static inline u16 davinci_i2c_read_reg(struct davinci_i2c_dev *i2c_dev, int reg) { - return __raw_readw(i2c_dev->base + reg); + return readw_relaxed(i2c_dev->base + reg); } /* Generate a pulse on the i2c clock pin. */ diff --git a/drivers/i2c/busses/i2c-diolan-u2c.c b/drivers/i2c/busses/i2c-diolan-u2c.c index dae3ddf..721f7eb 100644 --- a/drivers/i2c/busses/i2c-diolan-u2c.c +++ b/drivers/i2c/busses/i2c-diolan-u2c.c @@ -25,8 +25,6 @@ #define USB_VENDOR_ID_DIOLAN 0x0abf #define USB_DEVICE_ID_DIOLAN_U2C 0x3370 -#define DIOLAN_OUT_EP 0x02 -#define DIOLAN_IN_EP 0x84 /* commands via USB, must match command ids in the firmware */ #define CMD_I2C_READ 0x01 @@ -84,6 +82,7 @@ struct i2c_diolan_u2c { u8 obuffer[DIOLAN_OUTBUF_LEN]; /* output buffer */ u8 ibuffer[DIOLAN_INBUF_LEN]; /* input buffer */ + int ep_in, ep_out; /* Endpoints */ struct usb_device *usb_dev; /* the usb device for this device */ struct usb_interface *interface;/* the interface for this device */ struct i2c_adapter adapter; /* i2c related things */ @@ -109,7 +108,7 @@ static int diolan_usb_transfer(struct i2c_diolan_u2c *dev) return -EINVAL; ret = usb_bulk_msg(dev->usb_dev, - usb_sndbulkpipe(dev->usb_dev, DIOLAN_OUT_EP), + usb_sndbulkpipe(dev->usb_dev, dev->ep_out), dev->obuffer, dev->olen, &actual, DIOLAN_USB_TIMEOUT); if (!ret) { @@ -118,7 +117,7 @@ static int diolan_usb_transfer(struct i2c_diolan_u2c *dev) tmpret = usb_bulk_msg(dev->usb_dev, usb_rcvbulkpipe(dev->usb_dev, - DIOLAN_IN_EP), + dev->ep_in), dev->ibuffer, sizeof(dev->ibuffer), &actual, DIOLAN_USB_TIMEOUT); @@ -210,7 +209,7 @@ static void diolan_flush_input(struct i2c_diolan_u2c *dev) int ret; ret = usb_bulk_msg(dev->usb_dev, - usb_rcvbulkpipe(dev->usb_dev, DIOLAN_IN_EP), + usb_rcvbulkpipe(dev->usb_dev, dev->ep_in), dev->ibuffer, sizeof(dev->ibuffer), &actual, DIOLAN_USB_TIMEOUT); if (ret < 0 || actual == 0) @@ -445,9 +444,14 @@ static void diolan_u2c_free(struct i2c_diolan_u2c *dev) static int diolan_u2c_probe(struct usb_interface *interface, const struct usb_device_id *id) { + struct usb_host_interface *hostif = interface->cur_altsetting; struct i2c_diolan_u2c *dev; int ret; + if (hostif->desc.bInterfaceNumber != 0 + || hostif->desc.bNumEndpoints < 2) + return -ENODEV; + /* allocate memory for our device state and initialize it */ dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (dev == NULL) { @@ -455,6 +459,8 @@ static int diolan_u2c_probe(struct usb_interface *interface, ret = -ENOMEM; goto error; } + dev->ep_out = hostif->endpoint[0].desc.bEndpointAddress; + dev->ep_in = hostif->endpoint[1].desc.bEndpointAddress; dev->usb_dev = usb_get_dev(interface_to_usbdev(interface)); dev->interface = interface; diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index a6a891d..90dcc2e 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -266,13 +266,13 @@ static const u8 reg_map_ip_v2[] = { static inline void omap_i2c_write_reg(struct omap_i2c_dev *i2c_dev, int reg, u16 val) { - __raw_writew(val, i2c_dev->base + + writew_relaxed(val, i2c_dev->base + (i2c_dev->regs[reg] << i2c_dev->reg_shift)); } static inline u16 omap_i2c_read_reg(struct omap_i2c_dev *i2c_dev, int reg) { - return __raw_readw(i2c_dev->base + + return readw_relaxed(i2c_dev->base + (i2c_dev->regs[reg] << i2c_dev->reg_shift)); } @@ -1037,6 +1037,20 @@ static const struct i2c_algorithm omap_i2c_algo = { }; #ifdef CONFIG_OF +static struct omap_i2c_bus_platform_data omap2420_pdata = { + .rev = OMAP_I2C_IP_VERSION_1, + .flags = OMAP_I2C_FLAG_NO_FIFO | + OMAP_I2C_FLAG_SIMPLE_CLOCK | + OMAP_I2C_FLAG_16BIT_DATA_REG | + OMAP_I2C_FLAG_BUS_SHIFT_2, +}; + +static struct omap_i2c_bus_platform_data omap2430_pdata = { + .rev = OMAP_I2C_IP_VERSION_1, + .flags = OMAP_I2C_FLAG_BUS_SHIFT_2 | + OMAP_I2C_FLAG_FORCE_19200_INT_CLK, +}; + static struct omap_i2c_bus_platform_data omap3_pdata = { .rev = OMAP_I2C_IP_VERSION_1, .flags = OMAP_I2C_FLAG_BUS_SHIFT_2, @@ -1055,6 +1069,14 @@ static const struct of_device_id omap_i2c_of_match[] = { .compatible = "ti,omap3-i2c", .data = &omap3_pdata, }, + { + .compatible = "ti,omap2430-i2c", + .data = &omap2430_pdata, + }, + { + .compatible = "ti,omap2420-i2c", + .data = &omap2420_pdata, + }, { }, }; MODULE_DEVICE_TABLE(of, omap_i2c_of_match); @@ -1140,9 +1162,9 @@ omap_i2c_probe(struct platform_device *pdev) * Read the Rev hi bit-[15:14] ie scheme this is 1 indicates ver2. * On omap1/3/2 Offset 4 is IE Reg the bit [15:14] is 0 at reset. * Also since the omap_i2c_read_reg uses reg_map_ip_* a - * raw_readw is done. + * readw_relaxed is done. */ - rev = __raw_readw(dev->base + 0x04); + rev = readw_relaxed(dev->base + 0x04); dev->scheme = OMAP_I2C_SCHEME(rev); switch (dev->scheme) { diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c index dcda173..1cae4e9 100644 --- a/drivers/iio/accel/hid-sensor-accel-3d.c +++ b/drivers/iio/accel/hid-sensor-accel-3d.c @@ -350,7 +350,7 @@ static int hid_accel_3d_probe(struct platform_device *pdev) error_iio_unreg: iio_device_unregister(indio_dev); error_remove_trigger: - hid_sensor_remove_trigger(indio_dev); + hid_sensor_remove_trigger(&accel_state->common_attributes); error_unreg_buffer_funcs: iio_triggered_buffer_cleanup(indio_dev); error_free_dev_mem: @@ -363,10 +363,11 @@ static int hid_accel_3d_remove(struct platform_device *pdev) { struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data; struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct accel_3d_state *accel_state = iio_priv(indio_dev); sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_ACCEL_3D); iio_device_unregister(indio_dev); - hid_sensor_remove_trigger(indio_dev); + hid_sensor_remove_trigger(&accel_state->common_attributes); iio_triggered_buffer_cleanup(indio_dev); kfree(indio_dev->channels); diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c index d72118d..98ba761 100644 --- a/drivers/iio/accel/kxsd9.c +++ b/drivers/iio/accel/kxsd9.c @@ -112,9 +112,10 @@ static int kxsd9_read(struct iio_dev *indio_dev, u8 address) mutex_lock(&st->buf_lock); st->tx[0] = KXSD9_READ(address); ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers)); - if (ret) - return ret; - return (((u16)(st->rx[0])) << 8) | (st->rx[1] & 0xF0); + if (!ret) + ret = (((u16)(st->rx[0])) << 8) | (st->rx[1] & 0xF0); + mutex_unlock(&st->buf_lock); + return ret; } static IIO_CONST_ATTR(accel_scale_available, diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index 17df749..5b1aa02 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -1047,6 +1047,7 @@ static int at91_adc_probe(struct platform_device *pdev) } else { if (!st->caps->has_tsmr) { dev_err(&pdev->dev, "We don't support non-TSMR adc\n"); + ret = -ENODEV; goto error_disable_adc_clk; } diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c index 1294832..c8c1baa 100644 --- a/drivers/iio/adc/mcp3422.c +++ b/drivers/iio/adc/mcp3422.c @@ -88,10 +88,10 @@ static const int mcp3422_sample_rates[4] = { /* sample rates to sign extension table */ static const int mcp3422_sign_extend[4] = { - [MCP3422_SRATE_240] = 12, - [MCP3422_SRATE_60] = 14, - [MCP3422_SRATE_15] = 16, - [MCP3422_SRATE_3] = 18 }; + [MCP3422_SRATE_240] = 11, + [MCP3422_SRATE_60] = 13, + [MCP3422_SRATE_15] = 15, + [MCP3422_SRATE_3] = 17 }; /* Client data (each client gets its own) */ struct mcp3422 { diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index 728411e..d4d7482 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -229,12 +229,15 @@ static int tiadc_iio_buffered_hardware_setup(struct iio_dev *indio_dev, unsigned long flags, const struct iio_buffer_setup_ops *setup_ops) { + struct iio_buffer *buffer; int ret; - indio_dev->buffer = iio_kfifo_allocate(indio_dev); - if (!indio_dev->buffer) + buffer = iio_kfifo_allocate(indio_dev); + if (!buffer) return -ENOMEM; + iio_device_attach_buffer(indio_dev, buffer); + ret = request_threaded_irq(irq, pollfunc_th, pollfunc_bh, flags, indio_dev->name, indio_dev); if (ret) diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c index b6e77e0..bbd6426 100644 --- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c +++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c @@ -55,11 +55,10 @@ static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig, return 0; } -void hid_sensor_remove_trigger(struct iio_dev *indio_dev) +void hid_sensor_remove_trigger(struct hid_sensor_common *attrb) { - iio_trigger_unregister(indio_dev->trig); - iio_trigger_free(indio_dev->trig); - indio_dev->trig = NULL; + iio_trigger_unregister(attrb->trigger); + iio_trigger_free(attrb->trigger); } EXPORT_SYMBOL(hid_sensor_remove_trigger); @@ -90,7 +89,7 @@ int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name, dev_err(&indio_dev->dev, "Trigger Register Failed\n"); goto error_free_trig; } - indio_dev->trig = trig; + indio_dev->trig = attrb->trigger = trig; return ret; diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.h b/drivers/iio/common/hid-sensors/hid-sensor-trigger.h index 9a87314..ca02f78 100644 --- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.h +++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.h @@ -21,6 +21,6 @@ int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name, struct hid_sensor_common *attrb); -void hid_sensor_remove_trigger(struct iio_dev *indio_dev); +void hid_sensor_remove_trigger(struct hid_sensor_common *attrb); #endif diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c index ea01c6bc..e54f0f4 100644 --- a/drivers/iio/gyro/hid-sensor-gyro-3d.c +++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c @@ -348,7 +348,7 @@ static int hid_gyro_3d_probe(struct platform_device *pdev) error_iio_unreg: iio_device_unregister(indio_dev); error_remove_trigger: - hid_sensor_remove_trigger(indio_dev); + hid_sensor_remove_trigger(&gyro_state->common_attributes); error_unreg_buffer_funcs: iio_triggered_buffer_cleanup(indio_dev); error_free_dev_mem: @@ -361,10 +361,11 @@ static int hid_gyro_3d_remove(struct platform_device *pdev) { struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data; struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct gyro_3d_state *gyro_state = iio_priv(indio_dev); sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_GYRO_3D); iio_device_unregister(indio_dev); - hid_sensor_remove_trigger(indio_dev); + hid_sensor_remove_trigger(&gyro_state->common_attributes); iio_triggered_buffer_cleanup(indio_dev); kfree(indio_dev->channels); diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index f98c2b5..b0d65df 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -81,6 +81,8 @@ config SENSORS_LM3533 config TCS3472 tristate "TAOS TCS3472 color light-to-digital converter" depends on I2C + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER help If you say yes here you get support for the TAOS TCS3472 family of color light-to-digital converters with IR filter. diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c index fa6ae8c..8e8b9d7 100644 --- a/drivers/iio/light/hid-sensor-als.c +++ b/drivers/iio/light/hid-sensor-als.c @@ -314,7 +314,7 @@ static int hid_als_probe(struct platform_device *pdev) error_iio_unreg: iio_device_unregister(indio_dev); error_remove_trigger: - hid_sensor_remove_trigger(indio_dev); + hid_sensor_remove_trigger(&als_state->common_attributes); error_unreg_buffer_funcs: iio_triggered_buffer_cleanup(indio_dev); error_free_dev_mem: @@ -327,10 +327,11 @@ static int hid_als_remove(struct platform_device *pdev) { struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data; struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct als_state *als_state = iio_priv(indio_dev); sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_ALS); iio_device_unregister(indio_dev); - hid_sensor_remove_trigger(indio_dev); + hid_sensor_remove_trigger(&als_state->common_attributes); iio_triggered_buffer_cleanup(indio_dev); kfree(indio_dev->channels); diff --git a/drivers/iio/magnetometer/Kconfig b/drivers/iio/magnetometer/Kconfig index 0cf0963..d86d226 100644 --- a/drivers/iio/magnetometer/Kconfig +++ b/drivers/iio/magnetometer/Kconfig @@ -19,6 +19,8 @@ config AK8975 config MAG3110 tristate "Freescale MAG3110 3-Axis Magnetometer" depends on I2C + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER help Say yes here to build support for the Freescale MAG3110 3-Axis magnetometer. diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c index 2634920..b26e102 100644 --- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c +++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c @@ -351,7 +351,7 @@ static int hid_magn_3d_probe(struct platform_device *pdev) error_iio_unreg: iio_device_unregister(indio_dev); error_remove_trigger: - hid_sensor_remove_trigger(indio_dev); + hid_sensor_remove_trigger(&magn_state->common_attributes); error_unreg_buffer_funcs: iio_triggered_buffer_cleanup(indio_dev); error_free_dev_mem: @@ -364,10 +364,11 @@ static int hid_magn_3d_remove(struct platform_device *pdev) { struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data; struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct magn_3d_state *magn_state = iio_priv(indio_dev); sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D); iio_device_unregister(indio_dev); - hid_sensor_remove_trigger(indio_dev); + hid_sensor_remove_trigger(&magn_state->common_attributes); iio_triggered_buffer_cleanup(indio_dev); kfree(indio_dev->channels); diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c index 783c5b4..becf544 100644 --- a/drivers/iio/magnetometer/mag3110.c +++ b/drivers/iio/magnetometer/mag3110.c @@ -250,7 +250,12 @@ done: .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \ BIT(IIO_CHAN_INFO_SCALE), \ .scan_index = idx, \ - .scan_type = IIO_ST('s', 16, 16, IIO_BE), \ + .scan_type = { \ + .sign = 's', \ + .realbits = 16, \ + .storagebits = 16, \ + .endianness = IIO_BE, \ + }, \ } static const struct iio_chan_spec mag3110_channels[] = { diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c index 86b8228..45e0e3e 100644 --- a/drivers/input/misc/hp_sdc_rtc.c +++ b/drivers/input/misc/hp_sdc_rtc.c @@ -180,7 +180,10 @@ static int64_t hp_sdc_rtc_read_i8042timer (uint8_t loadcmd, int numreg) if (WARN_ON(down_interruptible(&i8042tregs))) return -1; - if (hp_sdc_enqueue_transaction(&t)) return -1; + if (hp_sdc_enqueue_transaction(&t)) { + up(&i8042tregs); + return -1; + } /* Sleep until results come back. */ if (WARN_ON(down_interruptible(&i8042tregs))) diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 00d1e54..961d58d 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -906,6 +906,17 @@ config TOUCHSCREEN_STMPE To compile this driver as a module, choose M here: the module will be called stmpe-ts. +config TOUCHSCREEN_SUR40 + tristate "Samsung SUR40 (Surface 2.0/PixelSense) touchscreen" + depends on USB + select INPUT_POLLDEV + help + Say Y here if you want support for the Samsung SUR40 touchscreen + (also known as Microsoft Surface 2.0 or Microsoft PixelSense). + + To compile this driver as a module, choose M here: the + module will be called sur40. + config TOUCHSCREEN_TPS6507X tristate "TPS6507x based touchscreens" depends on I2C diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 7587883..62801f2 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -54,6 +54,7 @@ obj-$(CONFIG_TOUCHSCREEN_PIXCIR) += pixcir_i2c_ts.o obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o obj-$(CONFIG_TOUCHSCREEN_STMPE) += stmpe-ts.o +obj-$(CONFIG_TOUCHSCREEN_SUR40) += sur40.o obj-$(CONFIG_TOUCHSCREEN_TI_AM335X_TSC) += ti_am335x_tsc.o obj-$(CONFIG_TOUCHSCREEN_TNETV107X) += tnetv107x-ts.o obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213) += touchit213.o diff --git a/drivers/input/touchscreen/atmel-wm97xx.c b/drivers/input/touchscreen/atmel-wm97xx.c index 268a35e..279c0e4 100644 --- a/drivers/input/touchscreen/atmel-wm97xx.c +++ b/drivers/input/touchscreen/atmel-wm97xx.c @@ -391,7 +391,7 @@ static int __exit atmel_wm97xx_remove(struct platform_device *pdev) } #ifdef CONFIG_PM_SLEEP -static int atmel_wm97xx_suspend(struct *dev) +static int atmel_wm97xx_suspend(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(pdev); diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c index 42d830e..a035a39 100644 --- a/drivers/input/touchscreen/cyttsp4_core.c +++ b/drivers/input/touchscreen/cyttsp4_core.c @@ -1246,8 +1246,7 @@ static void cyttsp4_watchdog_timer(unsigned long handle) dev_vdbg(cd->dev, "%s: Watchdog timer triggered\n", __func__); - if (!work_pending(&cd->watchdog_work)) - schedule_work(&cd->watchdog_work); + schedule_work(&cd->watchdog_work); return; } diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c new file mode 100644 index 0000000..cfd1b7e --- /dev/null +++ b/drivers/input/touchscreen/sur40.c @@ -0,0 +1,466 @@ +/* + * Surface2.0/SUR40/PixelSense input driver + * + * Copyright (c) 2013 by Florian 'floe' Echtler <floe@butterbrot.org> + * + * Derived from the USB Skeleton driver 1.1, + * Copyright (c) 2003 Greg Kroah-Hartman (greg@kroah.com) + * + * and from the Apple USB BCM5974 multitouch driver, + * Copyright (c) 2008 Henrik Rydberg (rydberg@euromail.se) + * + * and from the generic hid-multitouch driver, + * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/completion.h> +#include <linux/uaccess.h> +#include <linux/usb.h> +#include <linux/printk.h> +#include <linux/input-polldev.h> +#include <linux/input/mt.h> +#include <linux/usb/input.h> + +/* read 512 bytes from endpoint 0x86 -> get header + blobs */ +struct sur40_header { + + __le16 type; /* always 0x0001 */ + __le16 count; /* count of blobs (if 0: continue prev. packet) */ + + __le32 packet_id; /* unique ID for all packets in one frame */ + + __le32 timestamp; /* milliseconds (inc. by 16 or 17 each frame) */ + __le32 unknown; /* "epoch?" always 02/03 00 00 00 */ + +} __packed; + +struct sur40_blob { + + __le16 blob_id; + + u8 action; /* 0x02 = enter/exit, 0x03 = update (?) */ + u8 unknown; /* always 0x01 or 0x02 (no idea what this is?) */ + + __le16 bb_pos_x; /* upper left corner of bounding box */ + __le16 bb_pos_y; + + __le16 bb_size_x; /* size of bounding box */ + __le16 bb_size_y; + + __le16 pos_x; /* finger tip position */ + __le16 pos_y; + + __le16 ctr_x; /* centroid position */ + __le16 ctr_y; + + __le16 axis_x; /* somehow related to major/minor axis, mostly: */ + __le16 axis_y; /* axis_x == bb_size_y && axis_y == bb_size_x */ + + __le32 angle; /* orientation in radians relative to x axis - + actually an IEEE754 float, don't use in kernel */ + + __le32 area; /* size in pixels/pressure (?) */ + + u8 padding[32]; + +} __packed; + +/* combined header/blob data */ +struct sur40_data { + struct sur40_header header; + struct sur40_blob blobs[]; +} __packed; + + +/* version information */ +#define DRIVER_SHORT "sur40" +#define DRIVER_AUTHOR "Florian 'floe' Echtler <floe@butterbrot.org>" +#define DRIVER_DESC "Surface2.0/SUR40/PixelSense input driver" + +/* vendor and device IDs */ +#define ID_MICROSOFT 0x045e +#define ID_SUR40 0x0775 + +/* sensor resolution */ +#define SENSOR_RES_X 1920 +#define SENSOR_RES_Y 1080 + +/* touch data endpoint */ +#define TOUCH_ENDPOINT 0x86 + +/* polling interval (ms) */ +#define POLL_INTERVAL 10 + +/* maximum number of contacts FIXME: this is a guess? */ +#define MAX_CONTACTS 64 + +/* control commands */ +#define SUR40_GET_VERSION 0xb0 /* 12 bytes string */ +#define SUR40_UNKNOWN1 0xb3 /* 5 bytes */ +#define SUR40_UNKNOWN2 0xc1 /* 24 bytes */ + +#define SUR40_GET_STATE 0xc5 /* 4 bytes state (?) */ +#define SUR40_GET_SENSORS 0xb1 /* 8 bytes sensors */ + +/* + * Note: an earlier, non-public version of this driver used USB_RECIP_ENDPOINT + * here by mistake which is very likely to have corrupted the firmware EEPROM + * on two separate SUR40 devices. Thanks to Alan Stern who spotted this bug. + * Should you ever run into a similar problem, the background story to this + * incident and instructions on how to fix the corrupted EEPROM are available + * at https://floe.butterbrot.org/matrix/hacking/surface/brick.html +*/ + +struct sur40_state { + + struct usb_device *usbdev; + struct device *dev; + struct input_polled_dev *input; + + struct sur40_data *bulk_in_buffer; + size_t bulk_in_size; + u8 bulk_in_epaddr; + + char phys[64]; +}; + +static int sur40_command(struct sur40_state *dev, + u8 command, u16 index, void *buffer, u16 size) +{ + return usb_control_msg(dev->usbdev, usb_rcvctrlpipe(dev->usbdev, 0), + command, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, + 0x00, index, buffer, size, 1000); +} + +/* Initialization routine, called from sur40_open */ +static int sur40_init(struct sur40_state *dev) +{ + int result; + u8 buffer[24]; + + /* stupidly replay the original MS driver init sequence */ + result = sur40_command(dev, SUR40_GET_VERSION, 0x00, buffer, 12); + if (result < 0) + return result; + + result = sur40_command(dev, SUR40_GET_VERSION, 0x01, buffer, 12); + if (result < 0) + return result; + + result = sur40_command(dev, SUR40_GET_VERSION, 0x02, buffer, 12); + if (result < 0) + return result; + + result = sur40_command(dev, SUR40_UNKNOWN2, 0x00, buffer, 24); + if (result < 0) + return result; + + result = sur40_command(dev, SUR40_UNKNOWN1, 0x00, buffer, 5); + if (result < 0) + return result; + + result = sur40_command(dev, SUR40_GET_VERSION, 0x03, buffer, 12); + + /* + * Discard the result buffer - no known data inside except + * some version strings, maybe extract these sometime... + */ + + return result; +} + +/* + * Callback routines from input_polled_dev + */ + +/* Enable the device, polling will now start. */ +static void sur40_open(struct input_polled_dev *polldev) +{ + struct sur40_state *sur40 = polldev->private; + + dev_dbg(sur40->dev, "open\n"); + sur40_init(sur40); +} + +/* Disable device, polling has stopped. */ +static void sur40_close(struct input_polled_dev *polldev) +{ + struct sur40_state *sur40 = polldev->private; + + dev_dbg(sur40->dev, "close\n"); + /* + * There is no known way to stop the device, so we simply + * stop polling. + */ +} + +/* + * This function is called when a whole contact has been processed, + * so that it can assign it to a slot and store the data there. + */ +static void sur40_report_blob(struct sur40_blob *blob, struct input_dev *input) +{ + int wide, major, minor; + + int bb_size_x = le16_to_cpu(blob->bb_size_x); + int bb_size_y = le16_to_cpu(blob->bb_size_y); + + int pos_x = le16_to_cpu(blob->pos_x); + int pos_y = le16_to_cpu(blob->pos_y); + + int ctr_x = le16_to_cpu(blob->ctr_x); + int ctr_y = le16_to_cpu(blob->ctr_y); + + int slotnum = input_mt_get_slot_by_key(input, blob->blob_id); + if (slotnum < 0 || slotnum >= MAX_CONTACTS) + return; + + input_mt_slot(input, slotnum); + input_mt_report_slot_state(input, MT_TOOL_FINGER, 1); + wide = (bb_size_x > bb_size_y); + major = max(bb_size_x, bb_size_y); + minor = min(bb_size_x, bb_size_y); + + input_report_abs(input, ABS_MT_POSITION_X, pos_x); + input_report_abs(input, ABS_MT_POSITION_Y, pos_y); + input_report_abs(input, ABS_MT_TOOL_X, ctr_x); + input_report_abs(input, ABS_MT_TOOL_Y, ctr_y); + + /* TODO: use a better orientation measure */ + input_report_abs(input, ABS_MT_ORIENTATION, wide); + input_report_abs(input, ABS_MT_TOUCH_MAJOR, major); + input_report_abs(input, ABS_MT_TOUCH_MINOR, minor); +} + +/* core function: poll for new input data */ +static void sur40_poll(struct input_polled_dev *polldev) +{ + + struct sur40_state *sur40 = polldev->private; + struct input_dev *input = polldev->input; + int result, bulk_read, need_blobs, packet_blobs, i; + u32 packet_id; + + struct sur40_header *header = &sur40->bulk_in_buffer->header; + struct sur40_blob *inblob = &sur40->bulk_in_buffer->blobs[0]; + + dev_dbg(sur40->dev, "poll\n"); + + need_blobs = -1; + + do { + + /* perform a blocking bulk read to get data from the device */ + result = usb_bulk_msg(sur40->usbdev, + usb_rcvbulkpipe(sur40->usbdev, sur40->bulk_in_epaddr), + sur40->bulk_in_buffer, sur40->bulk_in_size, + &bulk_read, 1000); + + dev_dbg(sur40->dev, "received %d bytes\n", bulk_read); + + if (result < 0) { + dev_err(sur40->dev, "error in usb_bulk_read\n"); + return; + } + + result = bulk_read - sizeof(struct sur40_header); + + if (result % sizeof(struct sur40_blob) != 0) { + dev_err(sur40->dev, "transfer size mismatch\n"); + return; + } + + /* first packet? */ + if (need_blobs == -1) { + need_blobs = le16_to_cpu(header->count); + dev_dbg(sur40->dev, "need %d blobs\n", need_blobs); + packet_id = header->packet_id; + } + + /* + * Sanity check. when video data is also being retrieved, the + * packet ID will usually increase in the middle of a series + * instead of at the end. + */ + if (packet_id != header->packet_id) + dev_warn(sur40->dev, "packet ID mismatch\n"); + + packet_blobs = result / sizeof(struct sur40_blob); + dev_dbg(sur40->dev, "received %d blobs\n", packet_blobs); + + /* packets always contain at least 4 blobs, even if empty */ + if (packet_blobs > need_blobs) + packet_blobs = need_blobs; + + for (i = 0; i < packet_blobs; i++) { + need_blobs--; + dev_dbg(sur40->dev, "processing blob\n"); + sur40_report_blob(&(inblob[i]), input); + } + + } while (need_blobs > 0); + + input_mt_sync_frame(input); + input_sync(input); +} + +/* Initialize input device parameters. */ +static void sur40_input_setup(struct input_dev *input_dev) +{ + __set_bit(EV_KEY, input_dev->evbit); + __set_bit(EV_ABS, input_dev->evbit); + + input_set_abs_params(input_dev, ABS_MT_POSITION_X, + 0, SENSOR_RES_X, 0, 0); + input_set_abs_params(input_dev, ABS_MT_POSITION_Y, + 0, SENSOR_RES_Y, 0, 0); + + input_set_abs_params(input_dev, ABS_MT_TOOL_X, + 0, SENSOR_RES_X, 0, 0); + input_set_abs_params(input_dev, ABS_MT_TOOL_Y, + 0, SENSOR_RES_Y, 0, 0); + + /* max value unknown, but major/minor axis + * can never be larger than screen */ + input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, + 0, SENSOR_RES_X, 0, 0); + input_set_abs_params(input_dev, ABS_MT_TOUCH_MINOR, + 0, SENSOR_RES_Y, 0, 0); + + input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0); + + input_mt_init_slots(input_dev, MAX_CONTACTS, + INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED); +} + +/* Check candidate USB interface. */ +static int sur40_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct usb_device *usbdev = interface_to_usbdev(interface); + struct sur40_state *sur40; + struct usb_host_interface *iface_desc; + struct usb_endpoint_descriptor *endpoint; + struct input_polled_dev *poll_dev; + int error; + + /* Check if we really have the right interface. */ + iface_desc = &interface->altsetting[0]; + if (iface_desc->desc.bInterfaceClass != 0xFF) + return -ENODEV; + + /* Use endpoint #4 (0x86). */ + endpoint = &iface_desc->endpoint[4].desc; + if (endpoint->bEndpointAddress != TOUCH_ENDPOINT) + return -ENODEV; + + /* Allocate memory for our device state and initialize it. */ + sur40 = kzalloc(sizeof(struct sur40_state), GFP_KERNEL); + if (!sur40) + return -ENOMEM; + + poll_dev = input_allocate_polled_device(); + if (!poll_dev) { + error = -ENOMEM; + goto err_free_dev; + } + + /* Set up polled input device control structure */ + poll_dev->private = sur40; + poll_dev->poll_interval = POLL_INTERVAL; + poll_dev->open = sur40_open; + poll_dev->poll = sur40_poll; + poll_dev->close = sur40_close; + + /* Set up regular input device structure */ + sur40_input_setup(poll_dev->input); + + poll_dev->input->name = "Samsung SUR40"; + usb_to_input_id(usbdev, &poll_dev->input->id); + usb_make_path(usbdev, sur40->phys, sizeof(sur40->phys)); + strlcat(sur40->phys, "/input0", sizeof(sur40->phys)); + poll_dev->input->phys = sur40->phys; + poll_dev->input->dev.parent = &interface->dev; + + sur40->usbdev = usbdev; + sur40->dev = &interface->dev; + sur40->input = poll_dev; + + /* use the bulk-in endpoint tested above */ + sur40->bulk_in_size = usb_endpoint_maxp(endpoint); + sur40->bulk_in_epaddr = endpoint->bEndpointAddress; + sur40->bulk_in_buffer = kmalloc(sur40->bulk_in_size, GFP_KERNEL); + if (!sur40->bulk_in_buffer) { + dev_err(&interface->dev, "Unable to allocate input buffer."); + error = -ENOMEM; + goto err_free_polldev; + } + + error = input_register_polled_device(poll_dev); + if (error) { + dev_err(&interface->dev, + "Unable to register polled input device."); + goto err_free_buffer; + } + + /* we can register the device now, as it is ready */ + usb_set_intfdata(interface, sur40); + dev_dbg(&interface->dev, "%s is now attached\n", DRIVER_DESC); + + return 0; + +err_free_buffer: + kfree(sur40->bulk_in_buffer); +err_free_polldev: + input_free_polled_device(sur40->input); +err_free_dev: + kfree(sur40); + + return error; +} + +/* Unregister device & clean up. */ +static void sur40_disconnect(struct usb_interface *interface) +{ + struct sur40_state *sur40 = usb_get_intfdata(interface); + + input_unregister_polled_device(sur40->input); + input_free_polled_device(sur40->input); + kfree(sur40->bulk_in_buffer); + kfree(sur40); + + usb_set_intfdata(interface, NULL); + dev_dbg(&interface->dev, "%s is now disconnected\n", DRIVER_DESC); +} + +static const struct usb_device_id sur40_table[] = { + { USB_DEVICE(ID_MICROSOFT, ID_SUR40) }, /* Samsung SUR40 */ + { } /* terminating null entry */ +}; +MODULE_DEVICE_TABLE(usb, sur40_table); + +/* USB-specific object needed to register this driver with the USB subsystem. */ +static struct usb_driver sur40_driver = { + .name = DRIVER_SHORT, + .probe = sur40_probe, + .disconnect = sur40_disconnect, + .id_table = sur40_table, +}; + +module_usb_driver(sur40_driver); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 9031171..341c601 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -957,12 +957,13 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start, if (WARN_ON(!gic->domain)) return; + if (gic_nr == 0) { #ifdef CONFIG_SMP - set_smp_cross_call(gic_raise_softirq); - register_cpu_notifier(&gic_cpu_notifier); + set_smp_cross_call(gic_raise_softirq); + register_cpu_notifier(&gic_cpu_notifier); #endif - - set_handle_irq(gic_handle_irq); + set_handle_irq(gic_handle_irq); + } gic_chip.flags |= gic_arch_extn.flags; gic_dist_init(gic); diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c index 2848171..b31d8e9 100644 --- a/drivers/leds/leds-pwm.c +++ b/drivers/leds/leds-pwm.c @@ -82,22 +82,12 @@ static inline size_t sizeof_pwm_leds_priv(int num_leds) (sizeof(struct led_pwm_data) * num_leds); } -static struct led_pwm_priv *led_pwm_create_of(struct platform_device *pdev) +static int led_pwm_create_of(struct platform_device *pdev, + struct led_pwm_priv *priv) { struct device_node *node = pdev->dev.of_node; struct device_node *child; - struct led_pwm_priv *priv; - int count, ret; - - /* count LEDs in this device, so we know how much to allocate */ - count = of_get_child_count(node); - if (!count) - return NULL; - - priv = devm_kzalloc(&pdev->dev, sizeof_pwm_leds_priv(count), - GFP_KERNEL); - if (!priv) - return NULL; + int ret; for_each_child_of_node(node, child) { struct led_pwm_data *led_dat = &priv->leds[priv->num_leds]; @@ -109,6 +99,7 @@ static struct led_pwm_priv *led_pwm_create_of(struct platform_device *pdev) if (IS_ERR(led_dat->pwm)) { dev_err(&pdev->dev, "unable to request PWM for %s\n", led_dat->cdev.name); + ret = PTR_ERR(led_dat->pwm); goto err; } /* Get the period from PWM core when n*/ @@ -137,28 +128,36 @@ static struct led_pwm_priv *led_pwm_create_of(struct platform_device *pdev) priv->num_leds++; } - return priv; + return 0; err: while (priv->num_leds--) led_classdev_unregister(&priv->leds[priv->num_leds].cdev); - return NULL; + return ret; } static int led_pwm_probe(struct platform_device *pdev) { struct led_pwm_platform_data *pdata = dev_get_platdata(&pdev->dev); struct led_pwm_priv *priv; - int i, ret = 0; + int count, i; + int ret = 0; + + if (pdata) + count = pdata->num_leds; + else + count = of_get_child_count(pdev->dev.of_node); + + if (!count) + return -EINVAL; - if (pdata && pdata->num_leds) { - priv = devm_kzalloc(&pdev->dev, - sizeof_pwm_leds_priv(pdata->num_leds), - GFP_KERNEL); - if (!priv) - return -ENOMEM; + priv = devm_kzalloc(&pdev->dev, sizeof_pwm_leds_priv(count), + GFP_KERNEL); + if (!priv) + return -ENOMEM; - for (i = 0; i < pdata->num_leds; i++) { + if (pdata) { + for (i = 0; i < count; i++) { struct led_pwm *cur_led = &pdata->leds[i]; struct led_pwm_data *led_dat = &priv->leds[i]; @@ -188,11 +187,11 @@ static int led_pwm_probe(struct platform_device *pdev) if (ret < 0) goto err; } - priv->num_leds = pdata->num_leds; + priv->num_leds = count; } else { - priv = led_pwm_create_of(pdev); - if (!priv) - return -ENODEV; + ret = led_pwm_create_of(pdev, priv); + if (ret) + return ret; } platform_set_drvdata(pdev, priv); diff --git a/drivers/macintosh/Makefile b/drivers/macintosh/Makefile index 6753b65..d2f0120 100644 --- a/drivers/macintosh/Makefile +++ b/drivers/macintosh/Makefile @@ -40,6 +40,7 @@ obj-$(CONFIG_WINDFARM_RM31) += windfarm_fcu_controls.o \ windfarm_ad7417_sensor.o \ windfarm_lm75_sensor.o \ windfarm_lm87_sensor.o \ + windfarm_max6690_sensor.o \ windfarm_pid.o \ windfarm_cpufreq_clamp.o \ windfarm_rm31.o diff --git a/drivers/md/md.c b/drivers/md/md.c index b6b7a28..e60cebf 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7777,7 +7777,7 @@ void md_check_recovery(struct mddev *mddev) if (mddev->ro && !test_bit(MD_RECOVERY_NEEDED, &mddev->recovery)) return; if ( ! ( - (mddev->flags & ~ (1<<MD_CHANGE_PENDING)) || + (mddev->flags & MD_UPDATE_SB_FLAGS & ~ (1<<MD_CHANGE_PENDING)) || test_bit(MD_RECOVERY_NEEDED, &mddev->recovery) || test_bit(MD_RECOVERY_DONE, &mddev->recovery) || (mddev->external == 0 && mddev->safemode == 1) || diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 47da0af..cc055da 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -678,26 +678,23 @@ get_active_stripe(struct r5conf *conf, sector_t sector, } else init_stripe(sh, sector, previous); } else { + spin_lock(&conf->device_lock); if (atomic_read(&sh->count)) { BUG_ON(!list_empty(&sh->lru) && !test_bit(STRIPE_EXPANDING, &sh->state) && !test_bit(STRIPE_ON_UNPLUG_LIST, &sh->state) - && !test_bit(STRIPE_ON_RELEASE_LIST, &sh->state)); + ); } else { - spin_lock(&conf->device_lock); if (!test_bit(STRIPE_HANDLE, &sh->state)) atomic_inc(&conf->active_stripes); - if (list_empty(&sh->lru) && - !test_bit(STRIPE_ON_RELEASE_LIST, &sh->state) && - !test_bit(STRIPE_EXPANDING, &sh->state)) - BUG(); + BUG_ON(list_empty(&sh->lru)); list_del_init(&sh->lru); if (sh->group) { sh->group->stripes_cnt--; sh->group = NULL; } - spin_unlock(&conf->device_lock); } + spin_unlock(&conf->device_lock); } } while (sh == NULL); @@ -5471,7 +5468,7 @@ static int alloc_thread_groups(struct r5conf *conf, int cnt, for (i = 0; i < *group_cnt; i++) { struct r5worker_group *group; - group = worker_groups[i]; + group = &(*worker_groups)[i]; INIT_LIST_HEAD(&group->handle_list); group->conf = conf; group->workers = workers + i * cnt; diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 4dd5ee2..36eab0c 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4110,7 +4110,7 @@ static int bond_check_params(struct bond_params *params) if (!miimon) { pr_warning("Warning: miimon must be specified, otherwise bonding will not detect link failure, speed and duplex which are essential for 802.3ad operation\n"); pr_warning("Forcing miimon to 100msec\n"); - miimon = 100; + miimon = BOND_DEFAULT_MIIMON; } } @@ -4147,7 +4147,7 @@ static int bond_check_params(struct bond_params *params) if (!miimon) { pr_warning("Warning: miimon must be specified, otherwise bonding will not detect link failure and link speed which are essential for TLB/ALB load balancing\n"); pr_warning("Forcing miimon to 100msec\n"); - miimon = 100; + miimon = BOND_DEFAULT_MIIMON; } } diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c index 9a5223c..ea6f640 100644 --- a/drivers/net/bonding/bond_options.c +++ b/drivers/net/bonding/bond_options.c @@ -45,10 +45,15 @@ int bond_option_mode_set(struct bonding *bond, int mode) return -EPERM; } - if (BOND_MODE_IS_LB(mode) && bond->params.arp_interval) { - pr_err("%s: %s mode is incompatible with arp monitoring.\n", - bond->dev->name, bond_mode_tbl[mode].modename); - return -EINVAL; + if (BOND_NO_USES_ARP(mode) && bond->params.arp_interval) { + pr_info("%s: %s mode is incompatible with arp monitoring, start mii monitoring\n", + bond->dev->name, bond_mode_tbl[mode].modename); + /* disable arp monitoring */ + bond->params.arp_interval = 0; + /* set miimon to default value */ + bond->params.miimon = BOND_DEFAULT_MIIMON; + pr_info("%s: Setting MII monitoring interval to %d.\n", + bond->dev->name, bond->params.miimon); } /* don't cache arp_validate between modes */ diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 0ec2a7e..abf5e10 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -523,9 +523,7 @@ static ssize_t bonding_store_arp_interval(struct device *d, ret = -EINVAL; goto out; } - if (bond->params.mode == BOND_MODE_ALB || - bond->params.mode == BOND_MODE_TLB || - bond->params.mode == BOND_MODE_8023AD) { + if (BOND_NO_USES_ARP(bond->params.mode)) { pr_info("%s: ARP monitoring cannot be used with ALB/TLB/802.3ad. Only MII monitoring is supported on %s.\n", bond->dev->name, bond->dev->name); ret = -EINVAL; diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index ca31286..a9f4f9f 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -35,6 +35,8 @@ #define BOND_MAX_ARP_TARGETS 16 +#define BOND_DEFAULT_MIIMON 100 + #define IS_UP(dev) \ ((((dev)->flags & IFF_UP) == IFF_UP) && \ netif_running(dev) && \ @@ -55,6 +57,11 @@ ((mode) == BOND_MODE_TLB) || \ ((mode) == BOND_MODE_ALB)) +#define BOND_NO_USES_ARP(mode) \ + (((mode) == BOND_MODE_8023AD) || \ + ((mode) == BOND_MODE_TLB) || \ + ((mode) == BOND_MODE_ALB)) + #define TX_QUEUE_OVERRIDE(mode) \ (((mode) == BOND_MODE_ACTIVEBACKUP) || \ ((mode) == BOND_MODE_ROUNDROBIN)) diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index e3fc07c..77061ee 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -712,22 +712,31 @@ static int c_can_set_mode(struct net_device *dev, enum can_mode mode) return 0; } -static int c_can_get_berr_counter(const struct net_device *dev, - struct can_berr_counter *bec) +static int __c_can_get_berr_counter(const struct net_device *dev, + struct can_berr_counter *bec) { unsigned int reg_err_counter; struct c_can_priv *priv = netdev_priv(dev); - c_can_pm_runtime_get_sync(priv); - reg_err_counter = priv->read_reg(priv, C_CAN_ERR_CNT_REG); bec->rxerr = (reg_err_counter & ERR_CNT_REC_MASK) >> ERR_CNT_REC_SHIFT; bec->txerr = reg_err_counter & ERR_CNT_TEC_MASK; + return 0; +} + +static int c_can_get_berr_counter(const struct net_device *dev, + struct can_berr_counter *bec) +{ + struct c_can_priv *priv = netdev_priv(dev); + int err; + + c_can_pm_runtime_get_sync(priv); + err = __c_can_get_berr_counter(dev, bec); c_can_pm_runtime_put_sync(priv); - return 0; + return err; } /* @@ -754,6 +763,7 @@ static void c_can_do_tx(struct net_device *dev) if (!(val & (1 << (msg_obj_no - 1)))) { can_get_echo_skb(dev, msg_obj_no - C_CAN_MSG_OBJ_TX_FIRST); + c_can_object_get(dev, 0, msg_obj_no, IF_COMM_ALL); stats->tx_bytes += priv->read_reg(priv, C_CAN_IFACE(MSGCTRL_REG, 0)) & IF_MCONT_DLC_MASK; @@ -872,7 +882,7 @@ static int c_can_handle_state_change(struct net_device *dev, if (unlikely(!skb)) return 0; - c_can_get_berr_counter(dev, &bec); + __c_can_get_berr_counter(dev, &bec); reg_err_counter = priv->read_reg(priv, C_CAN_ERR_CNT_REG); rx_err_passive = (reg_err_counter & ERR_CNT_RP_MASK) >> ERR_CNT_RP_SHIFT; diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index ae08cf1..aaed97b 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -1020,13 +1020,13 @@ static int flexcan_probe(struct platform_device *pdev) dev_err(&pdev->dev, "no ipg clock defined\n"); return PTR_ERR(clk_ipg); } - clock_freq = clk_get_rate(clk_ipg); clk_per = devm_clk_get(&pdev->dev, "per"); if (IS_ERR(clk_per)) { dev_err(&pdev->dev, "no per clock defined\n"); return PTR_ERR(clk_per); } + clock_freq = clk_get_rate(clk_per); } mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 7164a99..f17c301 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -494,20 +494,20 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id) uint8_t isrc, status; int n = 0; - /* Shared interrupts and IRQ off? */ - if (priv->read_reg(priv, SJA1000_IER) == IRQ_OFF) - return IRQ_NONE; - if (priv->pre_irq) priv->pre_irq(priv); + /* Shared interrupts and IRQ off? */ + if (priv->read_reg(priv, SJA1000_IER) == IRQ_OFF) + goto out; + while ((isrc = priv->read_reg(priv, SJA1000_IR)) && (n < SJA1000_MAX_IRQ)) { - n++; + status = priv->read_reg(priv, SJA1000_SR); /* check for absent controller due to hw unplug */ if (status == 0xFF && sja1000_is_absent(priv)) - return IRQ_NONE; + goto out; if (isrc & IRQ_WUI) netdev_warn(dev, "wakeup interrupt\n"); @@ -535,7 +535,7 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id) status = priv->read_reg(priv, SJA1000_SR); /* check for absent controller */ if (status == 0xFF && sja1000_is_absent(priv)) - return IRQ_NONE; + goto out; } } if (isrc & (IRQ_DOI | IRQ_EI | IRQ_BEI | IRQ_EPI | IRQ_ALI)) { @@ -543,8 +543,9 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id) if (sja1000_err(dev, isrc, status)) break; } + n++; } - +out: if (priv->post_irq) priv->post_irq(priv); diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index a9e0684..369b736 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -10629,10 +10629,8 @@ static void tg3_sd_scan_scratchpad(struct tg3 *tp, struct tg3_ocir *ocir) static ssize_t tg3_show_temp(struct device *dev, struct device_attribute *devattr, char *buf) { - struct pci_dev *pdev = to_pci_dev(dev); - struct net_device *netdev = pci_get_drvdata(pdev); - struct tg3 *tp = netdev_priv(netdev); struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct tg3 *tp = dev_get_drvdata(dev); u32 temperature; spin_lock_bh(&tp->lock); @@ -10650,29 +10648,25 @@ static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, tg3_show_temp, NULL, static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, tg3_show_temp, NULL, TG3_TEMP_MAX_OFFSET); -static struct attribute *tg3_attributes[] = { +static struct attribute *tg3_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp1_crit.dev_attr.attr, &sensor_dev_attr_temp1_max.dev_attr.attr, NULL }; - -static const struct attribute_group tg3_group = { - .attrs = tg3_attributes, -}; +ATTRIBUTE_GROUPS(tg3); static void tg3_hwmon_close(struct tg3 *tp) { if (tp->hwmon_dev) { hwmon_device_unregister(tp->hwmon_dev); tp->hwmon_dev = NULL; - sysfs_remove_group(&tp->pdev->dev.kobj, &tg3_group); } } static void tg3_hwmon_open(struct tg3 *tp) { - int i, err; + int i; u32 size = 0; struct pci_dev *pdev = tp->pdev; struct tg3_ocir ocirs[TG3_SD_NUM_RECS]; @@ -10690,18 +10684,11 @@ static void tg3_hwmon_open(struct tg3 *tp) if (!size) return; - /* Register hwmon sysfs hooks */ - err = sysfs_create_group(&pdev->dev.kobj, &tg3_group); - if (err) { - dev_err(&pdev->dev, "Cannot create sysfs group, aborting\n"); - return; - } - - tp->hwmon_dev = hwmon_device_register(&pdev->dev); + tp->hwmon_dev = hwmon_device_register_with_groups(&pdev->dev, "tg3", + tp, tg3_groups); if (IS_ERR(tp->hwmon_dev)) { tp->hwmon_dev = NULL; dev_err(&pdev->dev, "Cannot register hwmon device, aborting\n"); - sysfs_remove_group(&pdev->dev.kobj, &tg3_group); } } diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h index f4825db..5878df6 100644 --- a/drivers/net/ethernet/emulex/benet/be.h +++ b/drivers/net/ethernet/emulex/benet/be.h @@ -503,6 +503,7 @@ struct be_adapter { }; #define be_physfn(adapter) (!adapter->virtfn) +#define be_virtfn(adapter) (adapter->virtfn) #define sriov_enabled(adapter) (adapter->num_vfs > 0) #define sriov_want(adapter) (be_physfn(adapter) && \ (num_vfs || pci_num_vf(adapter->pdev))) diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c index dbcd526..e0e8bc1 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.c +++ b/drivers/net/ethernet/emulex/benet/be_cmds.c @@ -1032,6 +1032,13 @@ int be_cmd_cq_create(struct be_adapter *adapter, struct be_queue_info *cq, } else { req->hdr.version = 2; req->page_size = 1; /* 1 for 4K */ + + /* coalesce-wm field in this cmd is not relevant to Lancer. + * Lancer uses COMMON_MODIFY_CQ to set this field + */ + if (!lancer_chip(adapter)) + AMAP_SET_BITS(struct amap_cq_context_v2, coalescwm, + ctxt, coalesce_wm); AMAP_SET_BITS(struct amap_cq_context_v2, nodelay, ctxt, no_delay); AMAP_SET_BITS(struct amap_cq_context_v2, count, ctxt, diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index abde974..fee64bf 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -2658,8 +2658,8 @@ static int be_close(struct net_device *netdev) be_roce_dev_close(adapter); - for_all_evt_queues(adapter, eqo, i) { - if (adapter->flags & BE_FLAGS_NAPI_ENABLED) { + if (adapter->flags & BE_FLAGS_NAPI_ENABLED) { + for_all_evt_queues(adapter, eqo, i) { napi_disable(&eqo->napi); be_disable_busy_poll(eqo); } @@ -3253,12 +3253,10 @@ static int be_mac_setup(struct be_adapter *adapter) memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN); } - /* On BE3 VFs this cmd may fail due to lack of privilege. - * Ignore the failure as in this case pmac_id is fetched - * in the IFACE_CREATE cmd. - */ - be_cmd_pmac_add(adapter, mac, adapter->if_handle, - &adapter->pmac_id[0], 0); + /* For BE3-R VFs, the PF programs the initial MAC address */ + if (!(BEx_chip(adapter) && be_virtfn(adapter))) + be_cmd_pmac_add(adapter, mac, adapter->if_handle, + &adapter->pmac_id[0], 0); return 0; } @@ -4599,6 +4597,7 @@ static int be_suspend(struct pci_dev *pdev, pm_message_t state) if (adapter->wol) be_setup_wol(adapter, true); + be_intr_set(adapter, false); cancel_delayed_work_sync(&adapter->func_recovery_work); netif_device_detach(netdev); @@ -4634,6 +4633,7 @@ static int be_resume(struct pci_dev *pdev) if (status) return status; + be_intr_set(adapter, true); /* tell fw we're ready to fire cmds */ status = be_cmd_fw_init(adapter); if (status) diff --git a/drivers/net/ethernet/intel/e1000/e1000.h b/drivers/net/ethernet/intel/e1000/e1000.h index 58c1472..f9313b3 100644 --- a/drivers/net/ethernet/intel/e1000/e1000.h +++ b/drivers/net/ethernet/intel/e1000/e1000.h @@ -83,6 +83,11 @@ struct e1000_adapter; #define E1000_MAX_INTR 10 +/* + * Count for polling __E1000_RESET condition every 10-20msec. + */ +#define E1000_CHECK_RESET_COUNT 50 + /* TX/RX descriptor defines */ #define E1000_DEFAULT_TXD 256 #define E1000_MAX_TXD 256 @@ -312,8 +317,6 @@ struct e1000_adapter { struct delayed_work watchdog_task; struct delayed_work fifo_stall_task; struct delayed_work phy_info_task; - - struct mutex mutex; }; enum e1000_state_t { diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index e386228..46e6544 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -494,13 +494,20 @@ static void e1000_down_and_stop(struct e1000_adapter *adapter) { set_bit(__E1000_DOWN, &adapter->flags); - /* Only kill reset task if adapter is not resetting */ - if (!test_bit(__E1000_RESETTING, &adapter->flags)) - cancel_work_sync(&adapter->reset_task); - cancel_delayed_work_sync(&adapter->watchdog_task); + + /* + * Since the watchdog task can reschedule other tasks, we should cancel + * it first, otherwise we can run into the situation when a work is + * still running after the adapter has been turned down. + */ + cancel_delayed_work_sync(&adapter->phy_info_task); cancel_delayed_work_sync(&adapter->fifo_stall_task); + + /* Only kill reset task if adapter is not resetting */ + if (!test_bit(__E1000_RESETTING, &adapter->flags)) + cancel_work_sync(&adapter->reset_task); } void e1000_down(struct e1000_adapter *adapter) @@ -544,21 +551,8 @@ void e1000_down(struct e1000_adapter *adapter) e1000_clean_all_rx_rings(adapter); } -static void e1000_reinit_safe(struct e1000_adapter *adapter) -{ - while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) - msleep(1); - mutex_lock(&adapter->mutex); - e1000_down(adapter); - e1000_up(adapter); - mutex_unlock(&adapter->mutex); - clear_bit(__E1000_RESETTING, &adapter->flags); -} - void e1000_reinit_locked(struct e1000_adapter *adapter) { - /* if rtnl_lock is not held the call path is bogus */ - ASSERT_RTNL(); WARN_ON(in_interrupt()); while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) msleep(1); @@ -1316,7 +1310,6 @@ static int e1000_sw_init(struct e1000_adapter *adapter) e1000_irq_disable(adapter); spin_lock_init(&adapter->stats_lock); - mutex_init(&adapter->mutex); set_bit(__E1000_DOWN, &adapter->flags); @@ -1440,6 +1433,10 @@ static int e1000_close(struct net_device *netdev) { struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; + int count = E1000_CHECK_RESET_COUNT; + + while (test_bit(__E1000_RESETTING, &adapter->flags) && count--) + usleep_range(10000, 20000); WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags)); e1000_down(adapter); @@ -2325,11 +2322,8 @@ static void e1000_update_phy_info_task(struct work_struct *work) struct e1000_adapter *adapter = container_of(work, struct e1000_adapter, phy_info_task.work); - if (test_bit(__E1000_DOWN, &adapter->flags)) - return; - mutex_lock(&adapter->mutex); + e1000_phy_get_info(&adapter->hw, &adapter->phy_info); - mutex_unlock(&adapter->mutex); } /** @@ -2345,9 +2339,6 @@ static void e1000_82547_tx_fifo_stall_task(struct work_struct *work) struct net_device *netdev = adapter->netdev; u32 tctl; - if (test_bit(__E1000_DOWN, &adapter->flags)) - return; - mutex_lock(&adapter->mutex); if (atomic_read(&adapter->tx_fifo_stall)) { if ((er32(TDT) == er32(TDH)) && (er32(TDFT) == er32(TDFH)) && @@ -2368,7 +2359,6 @@ static void e1000_82547_tx_fifo_stall_task(struct work_struct *work) schedule_delayed_work(&adapter->fifo_stall_task, 1); } } - mutex_unlock(&adapter->mutex); } bool e1000_has_link(struct e1000_adapter *adapter) @@ -2422,10 +2412,6 @@ static void e1000_watchdog(struct work_struct *work) struct e1000_tx_ring *txdr = adapter->tx_ring; u32 link, tctl; - if (test_bit(__E1000_DOWN, &adapter->flags)) - return; - - mutex_lock(&adapter->mutex); link = e1000_has_link(adapter); if ((netif_carrier_ok(netdev)) && link) goto link_up; @@ -2516,7 +2502,7 @@ link_up: adapter->tx_timeout_count++; schedule_work(&adapter->reset_task); /* exit immediately since reset is imminent */ - goto unlock; + return; } } @@ -2544,9 +2530,6 @@ link_up: /* Reschedule the task */ if (!test_bit(__E1000_DOWN, &adapter->flags)) schedule_delayed_work(&adapter->watchdog_task, 2 * HZ); - -unlock: - mutex_unlock(&adapter->mutex); } enum latency_range { @@ -3495,10 +3478,8 @@ static void e1000_reset_task(struct work_struct *work) struct e1000_adapter *adapter = container_of(work, struct e1000_adapter, reset_task); - if (test_bit(__E1000_DOWN, &adapter->flags)) - return; e_err(drv, "Reset adapter\n"); - e1000_reinit_safe(adapter); + e1000_reinit_locked(adapter); } /** @@ -4963,6 +4944,11 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake) netif_device_detach(netdev); if (netif_running(netdev)) { + int count = E1000_CHECK_RESET_COUNT; + + while (test_bit(__E1000_RESETTING, &adapter->flags) && count--) + usleep_range(10000, 20000); + WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags)); e1000_down(adapter); } diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c index b0f3666..c3143da 100644 --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c @@ -2062,14 +2062,15 @@ static void igb_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) { struct igb_adapter *adapter = netdev_priv(netdev); - wol->supported = WAKE_UCAST | WAKE_MCAST | - WAKE_BCAST | WAKE_MAGIC | - WAKE_PHY; wol->wolopts = 0; if (!(adapter->flags & IGB_FLAG_WOL_SUPPORTED)) return; + wol->supported = WAKE_UCAST | WAKE_MCAST | + WAKE_BCAST | WAKE_MAGIC | + WAKE_PHY; + /* apply any specific unsupported masks here */ switch (adapter->hw.device_id) { default: diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 0c55079..cc06854 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -4251,8 +4251,8 @@ static void ixgbe_disable_fwd_ring(struct ixgbe_fwd_adapter *vadapter, rx_ring->l2_accel_priv = NULL; } -int ixgbe_fwd_ring_down(struct net_device *vdev, - struct ixgbe_fwd_adapter *accel) +static int ixgbe_fwd_ring_down(struct net_device *vdev, + struct ixgbe_fwd_adapter *accel) { struct ixgbe_adapter *adapter = accel->real_adapter; unsigned int rxbase = accel->rx_base_queue; @@ -7986,10 +7986,9 @@ skip_sriov: NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_RXHASH | - NETIF_F_RXCSUM | - NETIF_F_HW_L2FW_DOFFLOAD; + NETIF_F_RXCSUM; - netdev->hw_features = netdev->features; + netdev->hw_features = netdev->features | NETIF_F_HW_L2FW_DOFFLOAD; switch (adapter->hw.mac.type) { case ixgbe_mac_82599EB: diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c index e4c6760..39217e5 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c @@ -46,6 +46,7 @@ static bool ixgbe_get_i2c_data(u32 *i2cctl); static void ixgbe_i2c_bus_clear(struct ixgbe_hw *hw); static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id); static s32 ixgbe_get_phy_id(struct ixgbe_hw *hw); +static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw); /** * ixgbe_identify_phy_generic - Get physical layer module @@ -1164,7 +1165,7 @@ err_read_i2c_eeprom: * * Searches for and identifies the QSFP module and assigns appropriate PHY type **/ -s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw) +static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw) { struct ixgbe_adapter *adapter = hw->back; s32 status = IXGBE_ERR_PHY_ADDR_INVALID; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h index aae900a..fffcbdd 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h @@ -145,7 +145,6 @@ s32 ixgbe_get_phy_firmware_version_generic(struct ixgbe_hw *hw, s32 ixgbe_reset_phy_nl(struct ixgbe_hw *hw); s32 ixgbe_identify_module_generic(struct ixgbe_hw *hw); s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw); -s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw); s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw, u16 *list_offset, u16 *data_offset); diff --git a/drivers/net/ethernet/mellanox/mlx4/en_selftest.c b/drivers/net/ethernet/mellanox/mlx4/en_selftest.c index 4062669..c11d063 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_selftest.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_selftest.c @@ -140,7 +140,6 @@ void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; - struct mlx4_en_tx_ring *tx_ring; int i, carrier_ok; memset(buf, 0, sizeof(u64) * MLX4_EN_NUM_SELF_TEST); @@ -150,16 +149,10 @@ void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf) carrier_ok = netif_carrier_ok(dev); netif_carrier_off(dev); -retry_tx: /* Wait until all tx queues are empty. * there should not be any additional incoming traffic * since we turned the carrier off */ msleep(200); - for (i = 0; i < priv->tx_ring_num && carrier_ok; i++) { - tx_ring = priv->tx_ring[i]; - if (tx_ring->prod != (tx_ring->cons + tx_ring->last_nr_txbb)) - goto retry_tx; - } if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) { diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c index f2a2128..737c1a8 100644 --- a/drivers/net/ethernet/realtek/8139cp.c +++ b/drivers/net/ethernet/realtek/8139cp.c @@ -678,9 +678,6 @@ static void cp_tx (struct cp_private *cp) le32_to_cpu(txd->opts1) & 0xffff, PCI_DMA_TODEVICE); - bytes_compl += skb->len; - pkts_compl++; - if (status & LastFrag) { if (status & (TxError | TxFIFOUnder)) { netif_dbg(cp, tx_err, cp->dev, @@ -702,6 +699,8 @@ static void cp_tx (struct cp_private *cp) netif_dbg(cp, tx_done, cp->dev, "tx done, slot %d\n", tx_tail); } + bytes_compl += skb->len; + pkts_compl++; dev_kfree_skb_irq(skb); } diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 7993875..c737f0e 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -3465,6 +3465,11 @@ static void rtl8168g_1_hw_phy_config(struct rtl8169_private *tp) rtl_writephy(tp, 0x14, 0x9065); rtl_writephy(tp, 0x14, 0x1065); + /* Check ALDPS bit, disable it if enabled */ + rtl_writephy(tp, 0x1f, 0x0a43); + if (rtl_readphy(tp, 0x10) & 0x0004) + rtl_w1w0_phy(tp, 0x10, 0x0000, 0x0004); + rtl_writephy(tp, 0x1f, 0x0000); } diff --git a/drivers/net/ethernet/sfc/mcdi.h b/drivers/net/ethernet/sfc/mcdi.h index 656a327..15816ca 100644 --- a/drivers/net/ethernet/sfc/mcdi.h +++ b/drivers/net/ethernet/sfc/mcdi.h @@ -75,6 +75,8 @@ struct efx_mcdi_mon { unsigned long last_update; struct device *device; struct efx_mcdi_mon_attribute *attrs; + struct attribute_group group; + const struct attribute_group *groups[2]; unsigned int n_attrs; }; diff --git a/drivers/net/ethernet/sfc/mcdi_mon.c b/drivers/net/ethernet/sfc/mcdi_mon.c index 4cc5d95..d72ad4f 100644 --- a/drivers/net/ethernet/sfc/mcdi_mon.c +++ b/drivers/net/ethernet/sfc/mcdi_mon.c @@ -139,17 +139,10 @@ static int efx_mcdi_mon_update(struct efx_nic *efx) return rc; } -static ssize_t efx_mcdi_mon_show_name(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - return sprintf(buf, "%s\n", KBUILD_MODNAME); -} - static int efx_mcdi_mon_get_entry(struct device *dev, unsigned int index, efx_dword_t *entry) { - struct efx_nic *efx = dev_get_drvdata(dev); + struct efx_nic *efx = dev_get_drvdata(dev->parent); struct efx_mcdi_mon *hwmon = efx_mcdi_mon(efx); int rc; @@ -263,7 +256,7 @@ static ssize_t efx_mcdi_mon_show_label(struct device *dev, efx_mcdi_sensor_type[mon_attr->type].label); } -static int +static void efx_mcdi_mon_add_attr(struct efx_nic *efx, const char *name, ssize_t (*reader)(struct device *, struct device_attribute *, char *), @@ -272,7 +265,6 @@ efx_mcdi_mon_add_attr(struct efx_nic *efx, const char *name, { struct efx_mcdi_mon *hwmon = efx_mcdi_mon(efx); struct efx_mcdi_mon_attribute *attr = &hwmon->attrs[hwmon->n_attrs]; - int rc; strlcpy(attr->name, name, sizeof(attr->name)); attr->index = index; @@ -286,10 +278,7 @@ efx_mcdi_mon_add_attr(struct efx_nic *efx, const char *name, attr->dev_attr.attr.name = attr->name; attr->dev_attr.attr.mode = S_IRUGO; attr->dev_attr.show = reader; - rc = device_create_file(&efx->pci_dev->dev, &attr->dev_attr); - if (rc == 0) - ++hwmon->n_attrs; - return rc; + hwmon->group.attrs[hwmon->n_attrs++] = &attr->dev_attr.attr; } int efx_mcdi_mon_probe(struct efx_nic *efx) @@ -338,26 +327,22 @@ int efx_mcdi_mon_probe(struct efx_nic *efx) efx_mcdi_mon_update(efx); /* Allocate space for the maximum possible number of - * attributes for this set of sensors: name of the driver plus + * attributes for this set of sensors: * value, min, max, crit, alarm and label for each sensor. */ - n_attrs = 1 + 6 * n_sensors; + n_attrs = 6 * n_sensors; hwmon->attrs = kcalloc(n_attrs, sizeof(*hwmon->attrs), GFP_KERNEL); if (!hwmon->attrs) { rc = -ENOMEM; goto fail; } - - hwmon->device = hwmon_device_register(&efx->pci_dev->dev); - if (IS_ERR(hwmon->device)) { - rc = PTR_ERR(hwmon->device); + hwmon->group.attrs = kcalloc(n_attrs + 1, sizeof(struct attribute *), + GFP_KERNEL); + if (!hwmon->group.attrs) { + rc = -ENOMEM; goto fail; } - rc = efx_mcdi_mon_add_attr(efx, "name", efx_mcdi_mon_show_name, 0, 0, 0); - if (rc) - goto fail; - for (i = 0, j = -1, type = -1; ; i++) { enum efx_hwmon_type hwmon_type; const char *hwmon_prefix; @@ -372,7 +357,7 @@ int efx_mcdi_mon_probe(struct efx_nic *efx) page = type / 32; j = -1; if (page == n_pages) - return 0; + goto hwmon_register; MCDI_SET_DWORD(inbuf, SENSOR_INFO_EXT_IN_PAGE, page); @@ -453,28 +438,22 @@ int efx_mcdi_mon_probe(struct efx_nic *efx) if (min1 != max1) { snprintf(name, sizeof(name), "%s%u_input", hwmon_prefix, hwmon_index); - rc = efx_mcdi_mon_add_attr( + efx_mcdi_mon_add_attr( efx, name, efx_mcdi_mon_show_value, i, type, 0); - if (rc) - goto fail; if (hwmon_type != EFX_HWMON_POWER) { snprintf(name, sizeof(name), "%s%u_min", hwmon_prefix, hwmon_index); - rc = efx_mcdi_mon_add_attr( + efx_mcdi_mon_add_attr( efx, name, efx_mcdi_mon_show_limit, i, type, min1); - if (rc) - goto fail; } snprintf(name, sizeof(name), "%s%u_max", hwmon_prefix, hwmon_index); - rc = efx_mcdi_mon_add_attr( + efx_mcdi_mon_add_attr( efx, name, efx_mcdi_mon_show_limit, i, type, max1); - if (rc) - goto fail; if (min2 != max2) { /* Assume max2 is critical value. @@ -482,32 +461,38 @@ int efx_mcdi_mon_probe(struct efx_nic *efx) */ snprintf(name, sizeof(name), "%s%u_crit", hwmon_prefix, hwmon_index); - rc = efx_mcdi_mon_add_attr( + efx_mcdi_mon_add_attr( efx, name, efx_mcdi_mon_show_limit, i, type, max2); - if (rc) - goto fail; } } snprintf(name, sizeof(name), "%s%u_alarm", hwmon_prefix, hwmon_index); - rc = efx_mcdi_mon_add_attr( + efx_mcdi_mon_add_attr( efx, name, efx_mcdi_mon_show_alarm, i, type, 0); - if (rc) - goto fail; if (type < ARRAY_SIZE(efx_mcdi_sensor_type) && efx_mcdi_sensor_type[type].label) { snprintf(name, sizeof(name), "%s%u_label", hwmon_prefix, hwmon_index); - rc = efx_mcdi_mon_add_attr( + efx_mcdi_mon_add_attr( efx, name, efx_mcdi_mon_show_label, i, type, 0); - if (rc) - goto fail; } } +hwmon_register: + hwmon->groups[0] = &hwmon->group; + hwmon->device = hwmon_device_register_with_groups(&efx->pci_dev->dev, + KBUILD_MODNAME, NULL, + hwmon->groups); + if (IS_ERR(hwmon->device)) { + rc = PTR_ERR(hwmon->device); + goto fail; + } + + return 0; + fail: efx_mcdi_mon_remove(efx); return rc; @@ -516,14 +501,11 @@ fail: void efx_mcdi_mon_remove(struct efx_nic *efx) { struct efx_mcdi_mon *hwmon = efx_mcdi_mon(efx); - unsigned int i; - for (i = 0; i < hwmon->n_attrs; i++) - device_remove_file(&efx->pci_dev->dev, - &hwmon->attrs[i].dev_attr); - kfree(hwmon->attrs); if (hwmon->device) hwmon_device_unregister(hwmon->device); + kfree(hwmon->attrs); + kfree(hwmon->group.attrs); efx_nic_free_buffer(efx, &hwmon->dma_buf); } diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h index c9d4c87..749654b 100644 --- a/drivers/net/ethernet/smsc/smc91x.h +++ b/drivers/net/ethernet/smsc/smc91x.h @@ -46,7 +46,8 @@ defined(CONFIG_MACH_LITTLETON) ||\ defined(CONFIG_MACH_ZYLONITE2) ||\ defined(CONFIG_ARCH_VIPER) ||\ - defined(CONFIG_MACH_STARGATE2) + defined(CONFIG_MACH_STARGATE2) ||\ + defined(CONFIG_ARCH_VERSATILE) #include <asm/mach-types.h> @@ -154,6 +155,8 @@ static inline void SMC_outw(u16 val, void __iomem *ioaddr, int reg) #define SMC_outl(v, a, r) writel(v, (a) + (r)) #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l) #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l) +#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l) +#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l) #define SMC_IRQ_FLAGS (-1) /* from resource */ /* We actually can't write halfwords properly if not word aligned */ @@ -206,23 +209,6 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg) #define RPC_LSA_DEFAULT RPC_LED_TX_RX #define RPC_LSB_DEFAULT RPC_LED_100_10 -#elif defined(CONFIG_ARCH_VERSATILE) - -#define SMC_CAN_USE_8BIT 1 -#define SMC_CAN_USE_16BIT 1 -#define SMC_CAN_USE_32BIT 1 -#define SMC_NOWAIT 1 - -#define SMC_inb(a, r) readb((a) + (r)) -#define SMC_inw(a, r) readw((a) + (r)) -#define SMC_inl(a, r) readl((a) + (r)) -#define SMC_outb(v, a, r) writeb(v, (a) + (r)) -#define SMC_outw(v, a, r) writew(v, (a) + (r)) -#define SMC_outl(v, a, r) writel(v, (a) + (r)) -#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l) -#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l) -#define SMC_IRQ_FLAGS (-1) /* from resource */ - #elif defined(CONFIG_MN10300) /* diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c index d022bf9..ad61d26 100644 --- a/drivers/net/ethernet/via/via-velocity.c +++ b/drivers/net/ethernet/via/via-velocity.c @@ -2172,16 +2172,13 @@ static int velocity_poll(struct napi_struct *napi, int budget) unsigned int rx_done; unsigned long flags; - spin_lock_irqsave(&vptr->lock, flags); /* * Do rx and tx twice for performance (taken from the VIA * out-of-tree driver). */ - rx_done = velocity_rx_srv(vptr, budget / 2); - velocity_tx_srv(vptr); - rx_done += velocity_rx_srv(vptr, budget - rx_done); + rx_done = velocity_rx_srv(vptr, budget); + spin_lock_irqsave(&vptr->lock, flags); velocity_tx_srv(vptr); - /* If budget not fully consumed, exit the polling mode */ if (rx_done < budget) { napi_complete(napi); @@ -2342,6 +2339,8 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu) if (ret < 0) goto out_free_tmp_vptr_1; + napi_disable(&vptr->napi); + spin_lock_irqsave(&vptr->lock, flags); netif_stop_queue(dev); @@ -2362,6 +2361,8 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu) velocity_give_many_rx_descs(vptr); + napi_enable(&vptr->napi); + mac_enable_int(vptr->mac_regs); netif_start_queue(dev); diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index dc76670..9093004 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -744,7 +744,7 @@ err: rcu_read_lock(); vlan = rcu_dereference(q->vlan); if (vlan) - vlan->dev->stats.tx_dropped++; + this_cpu_inc(vlan->pcpu_stats->tx_dropped); rcu_read_unlock(); return err; @@ -767,7 +767,6 @@ static ssize_t macvtap_put_user(struct macvtap_queue *q, const struct sk_buff *skb, const struct iovec *iv, int len) { - struct macvlan_dev *vlan; int ret; int vnet_hdr_len = 0; int vlan_offset = 0; @@ -821,15 +820,6 @@ static ssize_t macvtap_put_user(struct macvtap_queue *q, copied += len; done: - rcu_read_lock(); - vlan = rcu_dereference(q->vlan); - if (vlan) { - preempt_disable(); - macvlan_count_rx(vlan, copied - vnet_hdr_len, ret == 0, 0); - preempt_enable(); - } - rcu_read_unlock(); - return ret ? ret : copied; } diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c index 508e435..14372c6 100644 --- a/drivers/net/phy/vitesse.c +++ b/drivers/net/phy/vitesse.c @@ -64,6 +64,7 @@ #define PHY_ID_VSC8234 0x000fc620 #define PHY_ID_VSC8244 0x000fc6c0 +#define PHY_ID_VSC8514 0x00070670 #define PHY_ID_VSC8574 0x000704a0 #define PHY_ID_VSC8662 0x00070660 #define PHY_ID_VSC8221 0x000fc550 @@ -131,6 +132,7 @@ static int vsc82xx_config_intr(struct phy_device *phydev) err = phy_write(phydev, MII_VSC8244_IMASK, (phydev->drv->phy_id == PHY_ID_VSC8234 || phydev->drv->phy_id == PHY_ID_VSC8244 || + phydev->drv->phy_id == PHY_ID_VSC8514 || phydev->drv->phy_id == PHY_ID_VSC8574) ? MII_VSC8244_IMASK_MASK : MII_VSC8221_IMASK_MASK); @@ -246,6 +248,18 @@ static struct phy_driver vsc82xx_driver[] = { .config_intr = &vsc82xx_config_intr, .driver = { .owner = THIS_MODULE,}, }, { + .phy_id = PHY_ID_VSC8514, + .name = "Vitesse VSC8514", + .phy_id_mask = 0x000ffff0, + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_init = &vsc824x_config_init, + .config_aneg = &vsc82x4_config_aneg, + .read_status = &genphy_read_status, + .ack_interrupt = &vsc824x_ack_interrupt, + .config_intr = &vsc82xx_config_intr, + .driver = { .owner = THIS_MODULE,}, +}, { .phy_id = PHY_ID_VSC8574, .name = "Vitesse VSC8574", .phy_id_mask = 0x000ffff0, @@ -315,6 +329,7 @@ module_exit(vsc82xx_exit); static struct mdio_device_id __maybe_unused vitesse_tbl[] = { { PHY_ID_VSC8234, 0x000ffff0 }, { PHY_ID_VSC8244, 0x000fffc0 }, + { PHY_ID_VSC8514, 0x000ffff0 }, { PHY_ID_VSC8574, 0x000ffff0 }, { PHY_ID_VSC8662, 0x000ffff0 }, { PHY_ID_VSC8221, 0x000ffff0 }, diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index 34b0de0..736050d 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -1366,6 +1366,8 @@ static int team_user_linkup_option_get(struct team *team, return 0; } +static void __team_carrier_check(struct team *team); + static int team_user_linkup_option_set(struct team *team, struct team_gsetter_ctx *ctx) { @@ -1373,6 +1375,7 @@ static int team_user_linkup_option_set(struct team *team, port->user.linkup = ctx->data.bool_val; team_refresh_port_linkup(port); + __team_carrier_check(port->team); return 0; } @@ -1392,6 +1395,7 @@ static int team_user_linkup_en_option_set(struct team *team, port->user.linkup_enabled = ctx->data.bool_val; team_refresh_port_linkup(port); + __team_carrier_check(port->team); return 0; } diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 7bab4de..916241d 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -299,35 +299,76 @@ static struct sk_buff *page_to_skb(struct receive_queue *rq, return skb; } -static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) +static struct sk_buff *receive_small(void *buf, unsigned int len) { - struct skb_vnet_hdr *hdr = skb_vnet_hdr(head_skb); + struct sk_buff * skb = buf; + + len -= sizeof(struct virtio_net_hdr); + skb_trim(skb, len); + + return skb; +} + +static struct sk_buff *receive_big(struct net_device *dev, + struct receive_queue *rq, + void *buf, + unsigned int len) +{ + struct page *page = buf; + struct sk_buff *skb = page_to_skb(rq, page, 0, len, PAGE_SIZE); + + if (unlikely(!skb)) + goto err; + + return skb; + +err: + dev->stats.rx_dropped++; + give_pages(rq, page); + return NULL; +} + +static struct sk_buff *receive_mergeable(struct net_device *dev, + struct receive_queue *rq, + void *buf, + unsigned int len) +{ + struct skb_vnet_hdr *hdr = buf; + int num_buf = hdr->mhdr.num_buffers; + struct page *page = virt_to_head_page(buf); + int offset = buf - page_address(page); + struct sk_buff *head_skb = page_to_skb(rq, page, offset, len, + MERGE_BUFFER_LEN); struct sk_buff *curr_skb = head_skb; - char *buf; - struct page *page; - int num_buf, len, offset; - num_buf = hdr->mhdr.num_buffers; + if (unlikely(!curr_skb)) + goto err_skb; + while (--num_buf) { - int num_skb_frags = skb_shinfo(curr_skb)->nr_frags; + int num_skb_frags; + buf = virtqueue_get_buf(rq->vq, &len); if (unlikely(!buf)) { - pr_debug("%s: rx error: %d buffers missing\n", - head_skb->dev->name, hdr->mhdr.num_buffers); - head_skb->dev->stats.rx_length_errors++; - return -EINVAL; + pr_debug("%s: rx error: %d buffers out of %d missing\n", + dev->name, num_buf, hdr->mhdr.num_buffers); + dev->stats.rx_length_errors++; + goto err_buf; } if (unlikely(len > MERGE_BUFFER_LEN)) { pr_debug("%s: rx error: merge buffer too long\n", - head_skb->dev->name); + dev->name); len = MERGE_BUFFER_LEN; } + + page = virt_to_head_page(buf); + --rq->num; + + num_skb_frags = skb_shinfo(curr_skb)->nr_frags; if (unlikely(num_skb_frags == MAX_SKB_FRAGS)) { struct sk_buff *nskb = alloc_skb(0, GFP_ATOMIC); - if (unlikely(!nskb)) { - head_skb->dev->stats.rx_dropped++; - return -ENOMEM; - } + + if (unlikely(!nskb)) + goto err_skb; if (curr_skb == head_skb) skb_shinfo(curr_skb)->frag_list = nskb; else @@ -341,8 +382,7 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) head_skb->len += len; head_skb->truesize += MERGE_BUFFER_LEN; } - page = virt_to_head_page(buf); - offset = buf - (char *)page_address(page); + offset = buf - page_address(page); if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { put_page(page); skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, @@ -351,9 +391,28 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) skb_add_rx_frag(curr_skb, num_skb_frags, page, offset, len, MERGE_BUFFER_LEN); } + } + + return head_skb; + +err_skb: + put_page(page); + while (--num_buf) { + buf = virtqueue_get_buf(rq->vq, &len); + if (unlikely(!buf)) { + pr_debug("%s: rx error: %d buffers missing\n", + dev->name, num_buf); + dev->stats.rx_length_errors++; + break; + } + page = virt_to_head_page(buf); + put_page(page); --rq->num; } - return 0; +err_buf: + dev->stats.rx_dropped++; + dev_kfree_skb(head_skb); + return NULL; } static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len) @@ -362,7 +421,6 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len) struct net_device *dev = vi->dev; struct virtnet_stats *stats = this_cpu_ptr(vi->stats); struct sk_buff *skb; - struct page *page; struct skb_vnet_hdr *hdr; if (unlikely(len < sizeof(struct virtio_net_hdr) + ETH_HLEN)) { @@ -377,33 +435,15 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len) return; } - if (!vi->mergeable_rx_bufs && !vi->big_packets) { - skb = buf; - len -= sizeof(struct virtio_net_hdr); - skb_trim(skb, len); - } else if (vi->mergeable_rx_bufs) { - struct page *page = virt_to_head_page(buf); - skb = page_to_skb(rq, page, - (char *)buf - (char *)page_address(page), - len, MERGE_BUFFER_LEN); - if (unlikely(!skb)) { - dev->stats.rx_dropped++; - put_page(page); - return; - } - if (receive_mergeable(rq, skb)) { - dev_kfree_skb(skb); - return; - } - } else { - page = buf; - skb = page_to_skb(rq, page, 0, len, PAGE_SIZE); - if (unlikely(!skb)) { - dev->stats.rx_dropped++; - give_pages(rq, page); - return; - } - } + if (vi->mergeable_rx_bufs) + skb = receive_mergeable(dev, rq, buf, len); + else if (vi->big_packets) + skb = receive_big(dev, rq, buf, len); + else + skb = receive_small(buf, len); + + if (unlikely(!skb)) + return; hdr = skb_vnet_hdr(skb); @@ -1084,7 +1124,7 @@ static void virtnet_set_rx_mode(struct net_device *dev) if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MAC, VIRTIO_NET_CTRL_MAC_TABLE_SET, sg, NULL)) - dev_warn(&dev->dev, "Failed to set MAC fitler table.\n"); + dev_warn(&dev->dev, "Failed to set MAC filter table.\n"); kfree(buf); } diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index 919b650..64f0e0d 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -39,6 +39,7 @@ #include <linux/udp.h> #include <net/tcp.h> +#include <net/ip6_checksum.h> #include <xen/xen.h> #include <xen/events.h> diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c index 1cb6e51..170e8e6 100644 --- a/drivers/ntb/ntb_hw.c +++ b/drivers/ntb/ntb_hw.c @@ -141,6 +141,24 @@ void ntb_unregister_event_callback(struct ntb_device *ndev) ndev->event_cb = NULL; } +static void ntb_irq_work(unsigned long data) +{ + struct ntb_db_cb *db_cb = (struct ntb_db_cb *)data; + int rc; + + rc = db_cb->callback(db_cb->data, db_cb->db_num); + if (rc) + tasklet_schedule(&db_cb->irq_work); + else { + struct ntb_device *ndev = db_cb->ndev; + unsigned long mask; + + mask = readw(ndev->reg_ofs.ldb_mask); + clear_bit(db_cb->db_num * ndev->bits_per_vector, &mask); + writew(mask, ndev->reg_ofs.ldb_mask); + } +} + /** * ntb_register_db_callback() - register a callback for doorbell interrupt * @ndev: pointer to ntb_device instance @@ -155,7 +173,7 @@ void ntb_unregister_event_callback(struct ntb_device *ndev) * RETURNS: An appropriate -ERRNO error value on error, or zero for success. */ int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx, - void *data, void (*func)(void *data, int db_num)) + void *data, int (*func)(void *data, int db_num)) { unsigned long mask; @@ -166,6 +184,10 @@ int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx, ndev->db_cb[idx].callback = func; ndev->db_cb[idx].data = data; + ndev->db_cb[idx].ndev = ndev; + + tasklet_init(&ndev->db_cb[idx].irq_work, ntb_irq_work, + (unsigned long) &ndev->db_cb[idx]); /* unmask interrupt */ mask = readw(ndev->reg_ofs.ldb_mask); @@ -194,6 +216,8 @@ void ntb_unregister_db_callback(struct ntb_device *ndev, unsigned int idx) set_bit(idx * ndev->bits_per_vector, &mask); writew(mask, ndev->reg_ofs.ldb_mask); + tasklet_disable(&ndev->db_cb[idx].irq_work); + ndev->db_cb[idx].callback = NULL; } @@ -678,6 +702,7 @@ static int ntb_xeon_setup(struct ntb_device *ndev) return -EINVAL; ndev->limits.max_mw = SNB_ERRATA_MAX_MW; + ndev->limits.max_db_bits = SNB_MAX_DB_BITS; ndev->reg_ofs.spad_write = ndev->mw[1].vbase + SNB_SPAD_OFFSET; ndev->reg_ofs.rdb = ndev->mw[1].vbase + @@ -688,8 +713,21 @@ static int ntb_xeon_setup(struct ntb_device *ndev) */ writeq(ndev->mw[1].bar_sz + 0x1000, ndev->reg_base + SNB_PBAR4LMT_OFFSET); + /* HW errata on the Limit registers. They can only be + * written when the base register is 4GB aligned and + * < 32bit. This should already be the case based on the + * driver defaults, but write the Limit registers first + * just in case. + */ } else { ndev->limits.max_mw = SNB_MAX_MW; + + /* HW Errata on bit 14 of b2bdoorbell register. Writes + * will not be mirrored to the remote system. Shrink + * the number of bits by one, since bit 14 is the last + * bit. + */ + ndev->limits.max_db_bits = SNB_MAX_DB_BITS - 1; ndev->reg_ofs.spad_write = ndev->reg_base + SNB_B2B_SPAD_OFFSET; ndev->reg_ofs.rdb = ndev->reg_base + @@ -699,6 +737,12 @@ static int ntb_xeon_setup(struct ntb_device *ndev) * something silly */ writeq(0, ndev->reg_base + SNB_PBAR4LMT_OFFSET); + /* HW errata on the Limit registers. They can only be + * written when the base register is 4GB aligned and + * < 32bit. This should already be the case based on the + * driver defaults, but write the Limit registers first + * just in case. + */ } /* The Xeon errata workaround requires setting SBAR Base @@ -769,6 +813,7 @@ static int ntb_xeon_setup(struct ntb_device *ndev) * have an equal amount. */ ndev->limits.max_spads = SNB_MAX_COMPAT_SPADS / 2; + ndev->limits.max_db_bits = SNB_MAX_DB_BITS; /* Note: The SDOORBELL is the cause of the errata. You REALLY * don't want to touch it. */ @@ -793,6 +838,7 @@ static int ntb_xeon_setup(struct ntb_device *ndev) * have an equal amount. */ ndev->limits.max_spads = SNB_MAX_COMPAT_SPADS / 2; + ndev->limits.max_db_bits = SNB_MAX_DB_BITS; ndev->reg_ofs.rdb = ndev->reg_base + SNB_PDOORBELL_OFFSET; ndev->reg_ofs.ldb = ndev->reg_base + SNB_SDOORBELL_OFFSET; ndev->reg_ofs.ldb_mask = ndev->reg_base + SNB_SDBMSK_OFFSET; @@ -819,7 +865,6 @@ static int ntb_xeon_setup(struct ntb_device *ndev) ndev->reg_ofs.lnk_stat = ndev->reg_base + SNB_SLINK_STATUS_OFFSET; ndev->reg_ofs.spci_cmd = ndev->reg_base + SNB_PCICMD_OFFSET; - ndev->limits.max_db_bits = SNB_MAX_DB_BITS; ndev->limits.msix_cnt = SNB_MSIX_CNT; ndev->bits_per_vector = SNB_DB_BITS_PER_VEC; @@ -934,12 +979,16 @@ static irqreturn_t bwd_callback_msix_irq(int irq, void *data) { struct ntb_db_cb *db_cb = data; struct ntb_device *ndev = db_cb->ndev; + unsigned long mask; dev_dbg(&ndev->pdev->dev, "MSI-X irq %d received for DB %d\n", irq, db_cb->db_num); - if (db_cb->callback) - db_cb->callback(db_cb->data, db_cb->db_num); + mask = readw(ndev->reg_ofs.ldb_mask); + set_bit(db_cb->db_num * ndev->bits_per_vector, &mask); + writew(mask, ndev->reg_ofs.ldb_mask); + + tasklet_schedule(&db_cb->irq_work); /* No need to check for the specific HB irq, any interrupt means * we're connected. @@ -955,12 +1004,16 @@ static irqreturn_t xeon_callback_msix_irq(int irq, void *data) { struct ntb_db_cb *db_cb = data; struct ntb_device *ndev = db_cb->ndev; + unsigned long mask; dev_dbg(&ndev->pdev->dev, "MSI-X irq %d received for DB %d\n", irq, db_cb->db_num); - if (db_cb->callback) - db_cb->callback(db_cb->data, db_cb->db_num); + mask = readw(ndev->reg_ofs.ldb_mask); + set_bit(db_cb->db_num * ndev->bits_per_vector, &mask); + writew(mask, ndev->reg_ofs.ldb_mask); + + tasklet_schedule(&db_cb->irq_work); /* On Sandybridge, there are 16 bits in the interrupt register * but only 4 vectors. So, 5 bits are assigned to the first 3 @@ -986,7 +1039,7 @@ static irqreturn_t xeon_event_msix_irq(int irq, void *dev) dev_err(&ndev->pdev->dev, "Error determining link status\n"); /* bit 15 is always the link bit */ - writew(1 << ndev->limits.max_db_bits, ndev->reg_ofs.ldb); + writew(1 << SNB_LINK_DB, ndev->reg_ofs.ldb); return IRQ_HANDLED; } @@ -1075,6 +1128,10 @@ static int ntb_setup_msix(struct ntb_device *ndev) "Only %d MSI-X vectors. Limiting the number of queues to that number.\n", rc); msix_entries = rc; + + rc = pci_enable_msix(pdev, ndev->msix_entries, msix_entries); + if (rc) + goto err1; } for (i = 0; i < msix_entries; i++) { @@ -1176,9 +1233,10 @@ static int ntb_setup_interrupts(struct ntb_device *ndev) */ if (ndev->hw_type == BWD_HW) writeq(~0, ndev->reg_ofs.ldb_mask); - else - writew(~(1 << ndev->limits.max_db_bits), - ndev->reg_ofs.ldb_mask); + else { + u16 var = 1 << SNB_LINK_DB; + writew(~var, ndev->reg_ofs.ldb_mask); + } rc = ntb_setup_msix(ndev); if (!rc) @@ -1286,6 +1344,39 @@ static void ntb_free_debugfs(struct ntb_device *ndev) } } +static void ntb_hw_link_up(struct ntb_device *ndev) +{ + if (ndev->conn_type == NTB_CONN_TRANSPARENT) + ntb_link_event(ndev, NTB_LINK_UP); + else { + u32 ntb_cntl; + + /* Let's bring the NTB link up */ + ntb_cntl = readl(ndev->reg_ofs.lnk_cntl); + ntb_cntl &= ~(NTB_CNTL_LINK_DISABLE | NTB_CNTL_CFG_LOCK); + ntb_cntl |= NTB_CNTL_P2S_BAR23_SNOOP | NTB_CNTL_S2P_BAR23_SNOOP; + ntb_cntl |= NTB_CNTL_P2S_BAR45_SNOOP | NTB_CNTL_S2P_BAR45_SNOOP; + writel(ntb_cntl, ndev->reg_ofs.lnk_cntl); + } +} + +static void ntb_hw_link_down(struct ntb_device *ndev) +{ + u32 ntb_cntl; + + if (ndev->conn_type == NTB_CONN_TRANSPARENT) { + ntb_link_event(ndev, NTB_LINK_DOWN); + return; + } + + /* Bring NTB link down */ + ntb_cntl = readl(ndev->reg_ofs.lnk_cntl); + ntb_cntl &= ~(NTB_CNTL_P2S_BAR23_SNOOP | NTB_CNTL_S2P_BAR23_SNOOP); + ntb_cntl &= ~(NTB_CNTL_P2S_BAR45_SNOOP | NTB_CNTL_S2P_BAR45_SNOOP); + ntb_cntl |= NTB_CNTL_LINK_DISABLE | NTB_CNTL_CFG_LOCK; + writel(ntb_cntl, ndev->reg_ofs.lnk_cntl); +} + static int ntb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct ntb_device *ndev; @@ -1374,9 +1465,7 @@ static int ntb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (rc) goto err6; - /* Let's bring the NTB link up */ - writel(NTB_CNTL_BAR23_SNOOP | NTB_CNTL_BAR45_SNOOP, - ndev->reg_ofs.lnk_cntl); + ntb_hw_link_up(ndev); return 0; @@ -1406,12 +1495,8 @@ static void ntb_pci_remove(struct pci_dev *pdev) { struct ntb_device *ndev = pci_get_drvdata(pdev); int i; - u32 ntb_cntl; - /* Bring NTB link down */ - ntb_cntl = readl(ndev->reg_ofs.lnk_cntl); - ntb_cntl |= NTB_CNTL_LINK_DISABLE; - writel(ntb_cntl, ndev->reg_ofs.lnk_cntl); + ntb_hw_link_down(ndev); ntb_transport_free(ndev->ntb_transport); diff --git a/drivers/ntb/ntb_hw.h b/drivers/ntb/ntb_hw.h index 0a31ced..bbdb7ed 100644 --- a/drivers/ntb/ntb_hw.h +++ b/drivers/ntb/ntb_hw.h @@ -106,10 +106,11 @@ struct ntb_mw { }; struct ntb_db_cb { - void (*callback) (void *data, int db_num); + int (*callback)(void *data, int db_num); unsigned int db_num; void *data; struct ntb_device *ndev; + struct tasklet_struct irq_work; }; struct ntb_device { @@ -228,8 +229,8 @@ struct ntb_device *ntb_register_transport(struct pci_dev *pdev, void ntb_unregister_transport(struct ntb_device *ndev); void ntb_set_mw_addr(struct ntb_device *ndev, unsigned int mw, u64 addr); int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx, - void *data, void (*db_cb_func) (void *data, - int db_num)); + void *data, int (*db_cb_func)(void *data, + int db_num)); void ntb_unregister_db_callback(struct ntb_device *ndev, unsigned int idx); int ntb_register_event_callback(struct ntb_device *ndev, void (*event_cb_func) (void *handle, diff --git a/drivers/ntb/ntb_regs.h b/drivers/ntb/ntb_regs.h index aa4bdd3..9774506 100644 --- a/drivers/ntb/ntb_regs.h +++ b/drivers/ntb/ntb_regs.h @@ -55,6 +55,7 @@ #define SNB_MAX_COMPAT_SPADS 16 /* Reserve the uppermost bit for link interrupt */ #define SNB_MAX_DB_BITS 15 +#define SNB_LINK_DB 15 #define SNB_DB_BITS_PER_VEC 5 #define SNB_MAX_MW 2 #define SNB_ERRATA_MAX_MW 1 @@ -75,9 +76,6 @@ #define SNB_SBAR2XLAT_OFFSET 0x0030 #define SNB_SBAR4XLAT_OFFSET 0x0038 #define SNB_SBAR0BASE_OFFSET 0x0040 -#define SNB_SBAR0BASE_OFFSET 0x0040 -#define SNB_SBAR2BASE_OFFSET 0x0048 -#define SNB_SBAR4BASE_OFFSET 0x0050 #define SNB_SBAR2BASE_OFFSET 0x0048 #define SNB_SBAR4BASE_OFFSET 0x0050 #define SNB_NTBCNTL_OFFSET 0x0058 @@ -145,11 +143,13 @@ #define BWD_LTSSMSTATEJMP_FORCEDETECT (1 << 2) #define BWD_IBIST_ERR_OFLOW 0x7FFF7FFF -#define NTB_CNTL_CFG_LOCK (1 << 0) -#define NTB_CNTL_LINK_DISABLE (1 << 1) -#define NTB_CNTL_BAR23_SNOOP (1 << 2) -#define NTB_CNTL_BAR45_SNOOP (1 << 6) -#define BWD_CNTL_LINK_DOWN (1 << 16) +#define NTB_CNTL_CFG_LOCK (1 << 0) +#define NTB_CNTL_LINK_DISABLE (1 << 1) +#define NTB_CNTL_S2P_BAR23_SNOOP (1 << 2) +#define NTB_CNTL_P2S_BAR23_SNOOP (1 << 4) +#define NTB_CNTL_S2P_BAR45_SNOOP (1 << 6) +#define NTB_CNTL_P2S_BAR45_SNOOP (1 << 8) +#define BWD_CNTL_LINK_DOWN (1 << 16) #define NTB_PPD_OFFSET 0x00D4 #define SNB_PPD_CONN_TYPE 0x0003 diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c index d0222f1..3217f39 100644 --- a/drivers/ntb/ntb_transport.c +++ b/drivers/ntb/ntb_transport.c @@ -119,7 +119,6 @@ struct ntb_transport_qp { void (*rx_handler) (struct ntb_transport_qp *qp, void *qp_data, void *data, int len); - struct tasklet_struct rx_work; struct list_head rx_pend_q; struct list_head rx_free_q; spinlock_t ntb_rx_pend_q_lock; @@ -584,11 +583,8 @@ static int ntb_set_mw(struct ntb_transport *nt, int num_mw, unsigned int size) return 0; } -static void ntb_qp_link_cleanup(struct work_struct *work) +static void ntb_qp_link_cleanup(struct ntb_transport_qp *qp) { - struct ntb_transport_qp *qp = container_of(work, - struct ntb_transport_qp, - link_cleanup); struct ntb_transport *nt = qp->transport; struct pci_dev *pdev = ntb_query_pdev(nt->ndev); @@ -602,6 +598,16 @@ static void ntb_qp_link_cleanup(struct work_struct *work) dev_info(&pdev->dev, "qp %d: Link Down\n", qp->qp_num); qp->qp_link = NTB_LINK_DOWN; +} + +static void ntb_qp_link_cleanup_work(struct work_struct *work) +{ + struct ntb_transport_qp *qp = container_of(work, + struct ntb_transport_qp, + link_cleanup); + struct ntb_transport *nt = qp->transport; + + ntb_qp_link_cleanup(qp); if (nt->transport_link == NTB_LINK_UP) schedule_delayed_work(&qp->link_work, @@ -613,22 +619,20 @@ static void ntb_qp_link_down(struct ntb_transport_qp *qp) schedule_work(&qp->link_cleanup); } -static void ntb_transport_link_cleanup(struct work_struct *work) +static void ntb_transport_link_cleanup(struct ntb_transport *nt) { - struct ntb_transport *nt = container_of(work, struct ntb_transport, - link_cleanup); int i; + /* Pass along the info to any clients */ + for (i = 0; i < nt->max_qps; i++) + if (!test_bit(i, &nt->qp_bitmap)) + ntb_qp_link_cleanup(&nt->qps[i]); + if (nt->transport_link == NTB_LINK_DOWN) cancel_delayed_work_sync(&nt->link_work); else nt->transport_link = NTB_LINK_DOWN; - /* Pass along the info to any clients */ - for (i = 0; i < nt->max_qps; i++) - if (!test_bit(i, &nt->qp_bitmap)) - ntb_qp_link_down(&nt->qps[i]); - /* The scratchpad registers keep the values if the remote side * goes down, blast them now to give them a sane value the next * time they are accessed @@ -637,6 +641,14 @@ static void ntb_transport_link_cleanup(struct work_struct *work) ntb_write_local_spad(nt->ndev, i, 0); } +static void ntb_transport_link_cleanup_work(struct work_struct *work) +{ + struct ntb_transport *nt = container_of(work, struct ntb_transport, + link_cleanup); + + ntb_transport_link_cleanup(nt); +} + static void ntb_transport_event_callback(void *data, enum ntb_hw_event event) { struct ntb_transport *nt = data; @@ -880,7 +892,7 @@ static int ntb_transport_init_queue(struct ntb_transport *nt, } INIT_DELAYED_WORK(&qp->link_work, ntb_qp_link_work); - INIT_WORK(&qp->link_cleanup, ntb_qp_link_cleanup); + INIT_WORK(&qp->link_cleanup, ntb_qp_link_cleanup_work); spin_lock_init(&qp->ntb_rx_pend_q_lock); spin_lock_init(&qp->ntb_rx_free_q_lock); @@ -936,7 +948,7 @@ int ntb_transport_init(struct pci_dev *pdev) } INIT_DELAYED_WORK(&nt->link_work, ntb_transport_link_work); - INIT_WORK(&nt->link_cleanup, ntb_transport_link_cleanup); + INIT_WORK(&nt->link_cleanup, ntb_transport_link_cleanup_work); rc = ntb_register_event_callback(nt->ndev, ntb_transport_event_callback); @@ -972,7 +984,7 @@ void ntb_transport_free(void *transport) struct ntb_device *ndev = nt->ndev; int i; - nt->transport_link = NTB_LINK_DOWN; + ntb_transport_link_cleanup(nt); /* verify that all the qp's are freed */ for (i = 0; i < nt->max_qps; i++) { @@ -1188,11 +1200,14 @@ err: goto out; } -static void ntb_transport_rx(unsigned long data) +static int ntb_transport_rxc_db(void *data, int db_num) { - struct ntb_transport_qp *qp = (struct ntb_transport_qp *)data; + struct ntb_transport_qp *qp = data; int rc, i; + dev_dbg(&ntb_query_pdev(qp->ndev)->dev, "%s: doorbell %d received\n", + __func__, db_num); + /* Limit the number of packets processed in a single interrupt to * provide fairness to others */ @@ -1204,16 +1219,8 @@ static void ntb_transport_rx(unsigned long data) if (qp->dma_chan) dma_async_issue_pending(qp->dma_chan); -} - -static void ntb_transport_rxc_db(void *data, int db_num) -{ - struct ntb_transport_qp *qp = data; - - dev_dbg(&ntb_query_pdev(qp->ndev)->dev, "%s: doorbell %d received\n", - __func__, db_num); - tasklet_schedule(&qp->rx_work); + return i; } static void ntb_tx_copy_callback(void *data) @@ -1432,11 +1439,12 @@ ntb_transport_create_queue(void *data, struct pci_dev *pdev, qp->tx_handler = handlers->tx_handler; qp->event_handler = handlers->event_handler; + dmaengine_get(); qp->dma_chan = dma_find_channel(DMA_MEMCPY); - if (!qp->dma_chan) + if (!qp->dma_chan) { + dmaengine_put(); dev_info(&pdev->dev, "Unable to allocate DMA channel, using CPU instead\n"); - else - dmaengine_get(); + } for (i = 0; i < NTB_QP_DEF_NUM_ENTRIES; i++) { entry = kzalloc(sizeof(struct ntb_queue_entry), GFP_ATOMIC); @@ -1458,25 +1466,23 @@ ntb_transport_create_queue(void *data, struct pci_dev *pdev, &qp->tx_free_q); } - tasklet_init(&qp->rx_work, ntb_transport_rx, (unsigned long) qp); - rc = ntb_register_db_callback(qp->ndev, free_queue, qp, ntb_transport_rxc_db); if (rc) - goto err3; + goto err2; dev_info(&pdev->dev, "NTB Transport QP %d created\n", qp->qp_num); return qp; -err3: - tasklet_disable(&qp->rx_work); err2: while ((entry = ntb_list_rm(&qp->ntb_tx_free_q_lock, &qp->tx_free_q))) kfree(entry); err1: while ((entry = ntb_list_rm(&qp->ntb_rx_free_q_lock, &qp->rx_free_q))) kfree(entry); + if (qp->dma_chan) + dmaengine_put(); set_bit(free_queue, &nt->qp_bitmap); err: return NULL; @@ -1515,7 +1521,6 @@ void ntb_transport_free_queue(struct ntb_transport_qp *qp) } ntb_unregister_db_callback(qp->ndev, qp->qp_num); - tasklet_disable(&qp->rx_work); cancel_delayed_work_sync(&qp->link_work); diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index b3b1b9a..3a02717 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -9,10 +9,6 @@ * * Init/reset quirks for USB host controllers should be in the * USB quirks file, where their drivers can access reuse it. - * - * The bridge optimization stuff has been removed. If you really - * have a silly BIOS which is unable to set your host bridge right, - * use the PowerTweak utility (see http://powertweak.sourceforge.net). */ #include <linux/types.h> diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index c45c60f..fb233ae 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -140,7 +140,6 @@ MODULE_PARM_DESC(kbd_backlight_timeout, "on the model (default: no change from current value)"); #ifdef CONFIG_PM_SLEEP -static void sony_nc_kbd_backlight_resume(void); static void sony_nc_thermal_resume(void); #endif static int sony_nc_kbd_backlight_setup(struct platform_device *pd, @@ -1487,13 +1486,6 @@ static void sony_nc_function_resume(void) case 0x0135: sony_nc_rfkill_update(); break; - case 0x0137: - case 0x0143: - case 0x014b: - case 0x014c: - case 0x0163: - sony_nc_kbd_backlight_resume(); - break; default: continue; } @@ -1899,25 +1891,6 @@ static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd, } } -#ifdef CONFIG_PM_SLEEP -static void sony_nc_kbd_backlight_resume(void) -{ - int ignore = 0; - - if (!kbdbl_ctl) - return; - - if (kbdbl_ctl->mode == 0) - sony_call_snc_handle(kbdbl_ctl->handle, kbdbl_ctl->base, - &ignore); - - if (kbdbl_ctl->timeout != 0) - sony_call_snc_handle(kbdbl_ctl->handle, - (kbdbl_ctl->base + 0x200) | - (kbdbl_ctl->timeout << 0x10), &ignore); -} -#endif - struct battery_care_control { struct device_attribute attrs[2]; unsigned int handle; diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c index 724706a..fd3154d 100644 --- a/drivers/regulator/arizona-micsupp.c +++ b/drivers/regulator/arizona-micsupp.c @@ -174,6 +174,33 @@ static const struct regulator_desc arizona_micsupp = { .owner = THIS_MODULE, }; +static const struct regulator_linear_range arizona_micsupp_ext_ranges[] = { + REGULATOR_LINEAR_RANGE(900000, 0, 0x14, 25000), + REGULATOR_LINEAR_RANGE(1500000, 0x15, 0x27, 100000), +}; + +static const struct regulator_desc arizona_micsupp_ext = { + .name = "MICVDD", + .supply_name = "CPVDD", + .type = REGULATOR_VOLTAGE, + .n_voltages = 40, + .ops = &arizona_micsupp_ops, + + .vsel_reg = ARIZONA_LDO2_CONTROL_1, + .vsel_mask = ARIZONA_LDO2_VSEL_MASK, + .enable_reg = ARIZONA_MIC_CHARGE_PUMP_1, + .enable_mask = ARIZONA_CPMIC_ENA, + .bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1, + .bypass_mask = ARIZONA_CPMIC_BYPASS, + + .linear_ranges = arizona_micsupp_ext_ranges, + .n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ext_ranges), + + .enable_time = 3000, + + .owner = THIS_MODULE, +}; + static const struct regulator_init_data arizona_micsupp_default = { .constraints = { .valid_ops_mask = REGULATOR_CHANGE_STATUS | @@ -186,9 +213,22 @@ static const struct regulator_init_data arizona_micsupp_default = { .num_consumer_supplies = 1, }; +static const struct regulator_init_data arizona_micsupp_ext_default = { + .constraints = { + .valid_ops_mask = REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_BYPASS, + .min_uV = 900000, + .max_uV = 3300000, + }, + + .num_consumer_supplies = 1, +}; + static int arizona_micsupp_probe(struct platform_device *pdev) { struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); + const struct regulator_desc *desc; struct regulator_config config = { }; struct arizona_micsupp *micsupp; int ret; @@ -207,7 +247,17 @@ static int arizona_micsupp_probe(struct platform_device *pdev) * default init_data for it. This will be overridden with * platform data if provided. */ - micsupp->init_data = arizona_micsupp_default; + switch (arizona->type) { + case WM5110: + desc = &arizona_micsupp_ext; + micsupp->init_data = arizona_micsupp_ext_default; + break; + default: + desc = &arizona_micsupp; + micsupp->init_data = arizona_micsupp_default; + break; + } + micsupp->init_data.consumer_supplies = &micsupp->supply; micsupp->supply.supply = "MICVDD"; micsupp->supply.dev_name = dev_name(arizona->dev); @@ -226,7 +276,7 @@ static int arizona_micsupp_probe(struct platform_device *pdev) ARIZONA_CPMIC_BYPASS, 0); micsupp->regulator = devm_regulator_register(&pdev->dev, - &arizona_micsupp, + desc, &config); if (IS_ERR(micsupp->regulator)) { ret = PTR_ERR(micsupp->regulator); diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 6382f0a..3fe1313 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2184,6 +2184,9 @@ int regulator_list_voltage(struct regulator *regulator, unsigned selector) struct regulator_ops *ops = rdev->desc->ops; int ret; + if (rdev->desc->fixed_uV && rdev->desc->n_voltages == 1 && !selector) + return rdev->desc->fixed_uV; + if (!ops->list_voltage || selector >= rdev->desc->n_voltages) return -EINVAL; diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c index 04406a9..234960d 100644 --- a/drivers/regulator/gpio-regulator.c +++ b/drivers/regulator/gpio-regulator.c @@ -139,6 +139,7 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np) struct property *prop; const char *regtype; int proplen, gpio, i; + int ret; config = devm_kzalloc(dev, sizeof(struct gpio_regulator_config), @@ -202,7 +203,11 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np) } config->nr_states = i; - of_property_read_string(np, "regulator-type", ®type); + ret = of_property_read_string(np, "regulator-type", ®type); + if (ret < 0) { + dev_err(dev, "Missing 'regulator-type' property\n"); + return ERR_PTR(-EINVAL); + } if (!strncmp("voltage", regtype, 7)) config->type = REGULATOR_VOLTAGE; diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c index ba67b2c..032df37 100644 --- a/drivers/regulator/pfuze100-regulator.c +++ b/drivers/regulator/pfuze100-regulator.c @@ -308,9 +308,15 @@ static int pfuze_identify(struct pfuze_chip *pfuze_chip) if (ret) return ret; - if (value & 0x0f) { - dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value); - return -ENODEV; + switch (value & 0x0f) { + /* Freescale misprogrammed 1-3% of parts prior to week 8 of 2013 as ID=8 */ + case 0x8: + dev_info(pfuze_chip->dev, "Assuming misprogrammed ID=0x8"); + case 0x0: + break; + default: + dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value); + return -ENODEV; } ret = regmap_read(pfuze_chip->regmap, PFUZE100_REVID, &value); diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index cee7e27..95e4578 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -3224,6 +3224,8 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev, fcx_multitrack = private->features.feature[40] & 0x20; data_size = blk_rq_bytes(req); + if (data_size % blksize) + return ERR_PTR(-EINVAL); /* tpm write request add CBC data on each track boundary */ if (rq_data_dir(req) == WRITE) data_size += (last_trk - first_trk) * 4; diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index bd6f743..892ea61 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -1404,11 +1404,22 @@ enum { }; #define PMCRAID_AEN_CMD_MAX (__PMCRAID_AEN_CMD_MAX - 1) +static struct genl_multicast_group pmcraid_mcgrps[] = { + { .name = "events", /* not really used - see ID discussion below */ }, +}; + static struct genl_family pmcraid_event_family = { - .id = GENL_ID_GENERATE, + /* + * Due to prior multicast group abuse (the code having assumed that + * the family ID can be used as a multicast group ID) we need to + * statically allocate a family (and thus group) ID. + */ + .id = GENL_ID_PMCRAID, .name = "pmcraid", .version = 1, - .maxattr = PMCRAID_AEN_ATTR_MAX + .maxattr = PMCRAID_AEN_ATTR_MAX, + .mcgrps = pmcraid_mcgrps, + .n_mcgrps = ARRAY_SIZE(pmcraid_mcgrps), }; /** @@ -1511,9 +1522,8 @@ static int pmcraid_notify_aen( return result; } - result = - genlmsg_multicast(&pmcraid_event_family, skb, 0, - pmcraid_event_family.id, GFP_ATOMIC); + result = genlmsg_multicast(&pmcraid_event_family, skb, + 0, 0, GFP_ATOMIC); /* If there are no listeners, genlmsg_multicast may return non-zero * value. diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c index 3ed666f..9025edd 100644 --- a/drivers/spi/spi-bcm2835.c +++ b/drivers/spi/spi-bcm2835.c @@ -377,7 +377,7 @@ out_master_put: static int bcm2835_spi_remove(struct platform_device *pdev) { - struct spi_master *master = spi_master_get(platform_get_drvdata(pdev)); + struct spi_master *master = platform_get_drvdata(pdev); struct bcm2835_spi *bs = spi_master_get_devdata(master); free_irq(bs->irq, master); diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c index 80d56b2..469ecd8 100644 --- a/drivers/spi/spi-bcm63xx.c +++ b/drivers/spi/spi-bcm63xx.c @@ -435,7 +435,7 @@ out: static int bcm63xx_spi_remove(struct platform_device *pdev) { - struct spi_master *master = spi_master_get(platform_get_drvdata(pdev)); + struct spi_master *master = platform_get_drvdata(pdev); struct bcm63xx_spi *bs = spi_master_get_devdata(master); /* reset spi block */ diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c index 9602bbd..8767658 100644 --- a/drivers/spi/spi-mpc512x-psc.c +++ b/drivers/spi/spi-mpc512x-psc.c @@ -557,7 +557,7 @@ free_master: static int mpc512x_psc_spi_do_remove(struct device *dev) { - struct spi_master *master = spi_master_get(dev_get_drvdata(dev)); + struct spi_master *master = dev_get_drvdata(dev); struct mpc512x_psc_spi *mps = spi_master_get_devdata(master); clk_disable_unprepare(mps->clk_mclk); diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c index 73afb56..3adebfa 100644 --- a/drivers/spi/spi-mxs.c +++ b/drivers/spi/spi-mxs.c @@ -565,7 +565,7 @@ static int mxs_spi_remove(struct platform_device *pdev) struct mxs_spi *spi; struct mxs_ssp *ssp; - master = spi_master_get(platform_get_drvdata(pdev)); + master = platform_get_drvdata(pdev); spi = spi_master_get_devdata(master); ssp = &spi->ssp; diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index cb0e1f1..7765b19 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1073,6 +1073,8 @@ pxa2xx_spi_acpi_get_pdata(struct platform_device *pdev) static struct acpi_device_id pxa2xx_spi_acpi_match[] = { { "INT33C0", 0 }, { "INT33C1", 0 }, + { "INT3430", 0 }, + { "INT3431", 0 }, { "80860F0E", 0 }, { }, }; @@ -1291,6 +1293,9 @@ static int pxa2xx_spi_resume(struct device *dev) /* Enable the SSP clock */ clk_prepare_enable(ssp->clk); + /* Restore LPSS private register bits */ + lpss_ssp_setup(drv_data); + /* Start the queue running */ status = spi_master_resume(drv_data->master); if (status != 0) { diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index 58449ad..9e829ce 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -885,14 +885,13 @@ static void rspi_release_dma(struct rspi_data *rspi) static int rspi_remove(struct platform_device *pdev) { - struct rspi_data *rspi = spi_master_get(platform_get_drvdata(pdev)); + struct rspi_data *rspi = platform_get_drvdata(pdev); spi_unregister_master(rspi->master); rspi_release_dma(rspi); free_irq(platform_get_irq(pdev, 0), rspi); clk_put(rspi->clk); iounmap(rspi->addr); - spi_master_put(rspi->master); return 0; } diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c index 0b71270..4396bd4 100644 --- a/drivers/spi/spi-ti-qspi.c +++ b/drivers/spi/spi-ti-qspi.c @@ -161,7 +161,7 @@ static int ti_qspi_setup(struct spi_device *spi) qspi->spi_max_frequency, clk_div); ret = pm_runtime_get_sync(qspi->dev); - if (ret) { + if (ret < 0) { dev_err(qspi->dev, "pm_runtime_get_sync() failed\n"); return ret; } @@ -459,11 +459,10 @@ static int ti_qspi_probe(struct platform_device *pdev) if (!of_property_read_u32(np, "num-cs", &num_cs)) master->num_chipselect = num_cs; - platform_set_drvdata(pdev, master); - qspi = spi_master_get_devdata(master); qspi->master = master; qspi->dev = &pdev->dev; + platform_set_drvdata(pdev, qspi); r = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -517,10 +516,26 @@ free_master: static int ti_qspi_remove(struct platform_device *pdev) { - struct ti_qspi *qspi = platform_get_drvdata(pdev); + struct spi_master *master; + struct ti_qspi *qspi; + int ret; + + master = platform_get_drvdata(pdev); + qspi = spi_master_get_devdata(master); + + ret = pm_runtime_get_sync(qspi->dev); + if (ret < 0) { + dev_err(qspi->dev, "pm_runtime_get_sync() failed\n"); + return ret; + } ti_qspi_write(qspi, QSPI_WC_INT_DISABLE, QSPI_INTR_ENABLE_CLEAR_REG); + pm_runtime_put(qspi->dev); + pm_runtime_disable(&pdev->dev); + + spi_unregister_master(master); + return 0; } diff --git a/drivers/spi/spi-txx9.c b/drivers/spi/spi-txx9.c index 637cce2..18c9bb2 100644 --- a/drivers/spi/spi-txx9.c +++ b/drivers/spi/spi-txx9.c @@ -425,7 +425,7 @@ exit: static int txx9spi_remove(struct platform_device *dev) { - struct spi_master *master = spi_master_get(platform_get_drvdata(dev)); + struct spi_master *master = platform_get_drvdata(dev); struct txx9spi *c = spi_master_get_devdata(master); destroy_workqueue(c->workqueue); diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 18cc625..349ebba 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -1415,7 +1415,7 @@ int devm_spi_register_master(struct device *dev, struct spi_master *master) return -ENOMEM; ret = spi_register_master(master); - if (ret != 0) { + if (!ret) { *ptr = master; devres_add(dev, ptr); } else { diff --git a/drivers/staging/btmtk_usb/btmtk_usb.c b/drivers/staging/btmtk_usb/btmtk_usb.c index 7a9bf3b..9a5ebd6 100644 --- a/drivers/staging/btmtk_usb/btmtk_usb.c +++ b/drivers/staging/btmtk_usb/btmtk_usb.c @@ -1284,9 +1284,8 @@ done: kfree_skb(skb); } -static int btmtk_usb_send_frame(struct sk_buff *skb) +static int btmtk_usb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) { - struct hci_dev *hdev = (struct hci_dev *)skb->dev; struct btmtk_usb_data *data = hci_get_drvdata(hdev); struct usb_ctrlrequest *dr; struct urb *urb; diff --git a/drivers/staging/comedi/drivers/pcl730.c b/drivers/staging/comedi/drivers/pcl730.c index d041b71..2baaf1d 100644 --- a/drivers/staging/comedi/drivers/pcl730.c +++ b/drivers/staging/comedi/drivers/pcl730.c @@ -173,11 +173,11 @@ static int pcl730_do_insn_bits(struct comedi_device *dev, if (mask) { if (mask & 0x00ff) outb(s->state & 0xff, dev->iobase + reg); - if ((mask & 0xff00) & (s->n_chan > 8)) + if ((mask & 0xff00) && (s->n_chan > 8)) outb((s->state >> 8) & 0xff, dev->iobase + reg + 1); - if ((mask & 0xff0000) & (s->n_chan > 16)) + if ((mask & 0xff0000) && (s->n_chan > 16)) outb((s->state >> 16) & 0xff, dev->iobase + reg + 2); - if ((mask & 0xff000000) & (s->n_chan > 24)) + if ((mask & 0xff000000) && (s->n_chan > 24)) outb((s->state >> 24) & 0xff, dev->iobase + reg + 3); } diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c index 6815cfe..b486099 100644 --- a/drivers/staging/comedi/drivers/s626.c +++ b/drivers/staging/comedi/drivers/s626.c @@ -494,7 +494,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val) * Private helper function: Write setpoint to an application DAC channel. */ static void s626_set_dac(struct comedi_device *dev, uint16_t chan, - unsigned short dacdata) + int16_t dacdata) { struct s626_private *devpriv = dev->private; uint16_t signmask; diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c index 933b01a..0adf3cf 100644 --- a/drivers/staging/comedi/drivers/vmk80xx.c +++ b/drivers/staging/comedi/drivers/vmk80xx.c @@ -465,7 +465,7 @@ static int vmk80xx_do_insn_bits(struct comedi_device *dev, unsigned char *rx_buf = devpriv->usb_rx_buf; unsigned char *tx_buf = devpriv->usb_tx_buf; int reg, cmd; - int ret; + int ret = 0; if (devpriv->model == VMK8061_MODEL) { reg = VMK8061_DO_REG; diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c index 68ded17..12f333f 100644 --- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c +++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c @@ -578,7 +578,7 @@ static int request_code_segment(struct ft1000_usb *ft1000dev, u16 **s_file, u8 **c_file, const u8 *endpoint, bool boot_case) { long word_length; - int status; + int status = 0; /*DEBUG("FT1000:REQUEST_CODE_SEGMENT\n");i*/ word_length = get_request_value(ft1000dev); @@ -1074,4 +1074,3 @@ int scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart, return status; } - diff --git a/drivers/staging/iio/magnetometer/Kconfig b/drivers/staging/iio/magnetometer/Kconfig index a3ea69e..34634da 100644 --- a/drivers/staging/iio/magnetometer/Kconfig +++ b/drivers/staging/iio/magnetometer/Kconfig @@ -6,6 +6,8 @@ menu "Magnetometer sensors" config SENSORS_HMC5843 tristate "Honeywell HMC5843/5883/5883L 3-Axis Magnetometer" depends on I2C + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER help Say Y here to add support for the Honeywell HMC5843, HMC5883 and HMC5883L 3-Axis Magnetometer (digital compass). diff --git a/drivers/staging/imx-drm/Makefile b/drivers/staging/imx-drm/Makefile index 2c3a9e1..8742432 100644 --- a/drivers/staging/imx-drm/Makefile +++ b/drivers/staging/imx-drm/Makefile @@ -8,4 +8,6 @@ obj-$(CONFIG_DRM_IMX_TVE) += imx-tve.o obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o obj-$(CONFIG_DRM_IMX_FB_HELPER) += imx-fbdev.o obj-$(CONFIG_DRM_IMX_IPUV3_CORE) += ipu-v3/ -obj-$(CONFIG_DRM_IMX_IPUV3) += ipuv3-crtc.o ipuv3-plane.o + +imx-ipuv3-crtc-objs := ipuv3-crtc.o ipuv3-plane.o +obj-$(CONFIG_DRM_IMX_IPUV3) += imx-ipuv3-crtc.o diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c index 51aa977..6bd015a 100644 --- a/drivers/staging/imx-drm/imx-drm-core.c +++ b/drivers/staging/imx-drm/imx-drm-core.c @@ -72,6 +72,7 @@ int imx_drm_crtc_id(struct imx_drm_crtc *crtc) { return crtc->pipe; } +EXPORT_SYMBOL_GPL(imx_drm_crtc_id); static void imx_drm_driver_lastclose(struct drm_device *drm) { diff --git a/drivers/staging/lustre/lustre/ptlrpc/pinger.c b/drivers/staging/lustre/lustre/ptlrpc/pinger.c index 5dec771..4d340f4 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/pinger.c +++ b/drivers/staging/lustre/lustre/ptlrpc/pinger.c @@ -409,8 +409,8 @@ int ptlrpc_stop_pinger(void) struct l_wait_info lwi = { 0 }; int rc = 0; - if (!thread_is_init(&pinger_thread) && - !thread_is_stopped(&pinger_thread)) + if (thread_is_init(&pinger_thread) || + thread_is_stopped(&pinger_thread)) return -EALREADY; ptlrpc_pinger_remove_timeouts(); diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c index 58684da..b658c23 100644 --- a/drivers/staging/media/go7007/go7007-usb.c +++ b/drivers/staging/media/go7007/go7007-usb.c @@ -15,6 +15,8 @@ * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> @@ -661,7 +663,7 @@ static int go7007_usb_interface_reset(struct go7007 *go) if (usb->board->flags & GO7007_USB_EZUSB) { /* Reset buffer in EZ-USB */ - dev_dbg(go->dev, "resetting EZ-USB buffers\n"); + pr_debug("resetting EZ-USB buffers\n"); if (go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0 || go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0) return -1; @@ -689,7 +691,7 @@ static int go7007_usb_ezusb_write_interrupt(struct go7007 *go, u16 status_reg = 0; int timeout = 500; - dev_dbg(go->dev, "WriteInterrupt: %04x %04x\n", addr, data); + pr_debug("WriteInterrupt: %04x %04x\n", addr, data); for (i = 0; i < 100; ++i) { r = usb_control_msg(usb->usbdev, @@ -734,7 +736,7 @@ static int go7007_usb_onboard_write_interrupt(struct go7007 *go, int r; int timeout = 500; - dev_dbg(go->dev, "WriteInterrupt: %04x %04x\n", addr, data); + pr_debug("WriteInterrupt: %04x %04x\n", addr, data); go->usb_buf[0] = data & 0xff; go->usb_buf[1] = data >> 8; @@ -771,7 +773,7 @@ static void go7007_usb_readinterrupt_complete(struct urb *urb) go->interrupt_available = 1; go->interrupt_data = __le16_to_cpu(regs[0]); go->interrupt_value = __le16_to_cpu(regs[1]); - dev_dbg(go->dev, "ReadInterrupt: %04x %04x\n", + pr_debug("ReadInterrupt: %04x %04x\n", go->interrupt_value, go->interrupt_data); } @@ -891,7 +893,7 @@ static int go7007_usb_send_firmware(struct go7007 *go, u8 *data, int len) int transferred, pipe; int timeout = 500; - dev_dbg(go->dev, "DownloadBuffer sending %d bytes\n", len); + pr_debug("DownloadBuffer sending %d bytes\n", len); if (usb->board->flags & GO7007_USB_EZUSB) pipe = usb_sndbulkpipe(usb->usbdev, 2); @@ -977,7 +979,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter, !(msgs[i].flags & I2C_M_RD) && (msgs[i + 1].flags & I2C_M_RD)) { #ifdef GO7007_I2C_DEBUG - dev_dbg(go->dev, "i2c write/read %d/%d bytes on %02x\n", + pr_debug("i2c write/read %d/%d bytes on %02x\n", msgs[i].len, msgs[i + 1].len, msgs[i].addr); #endif buf[0] = 0x01; @@ -988,7 +990,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter, buf[buf_len++] = msgs[++i].len; } else if (msgs[i].flags & I2C_M_RD) { #ifdef GO7007_I2C_DEBUG - dev_dbg(go->dev, "i2c read %d bytes on %02x\n", + pr_debug("i2c read %d bytes on %02x\n", msgs[i].len, msgs[i].addr); #endif buf[0] = 0x01; @@ -998,7 +1000,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter, buf_len = 4; } else { #ifdef GO7007_I2C_DEBUG - dev_dbg(go->dev, "i2c write %d bytes on %02x\n", + pr_debug("i2c write %d bytes on %02x\n", msgs[i].len, msgs[i].addr); #endif buf[0] = 0x00; @@ -1057,7 +1059,7 @@ static int go7007_usb_probe(struct usb_interface *intf, char *name; int video_pipe, i, v_urb_len; - dev_dbg(go->dev, "probing new GO7007 USB board\n"); + pr_debug("probing new GO7007 USB board\n"); switch (id->driver_info) { case GO7007_BOARDID_MATRIX_II: @@ -1097,13 +1099,13 @@ static int go7007_usb_probe(struct usb_interface *intf, board = &board_px_tv402u; break; case GO7007_BOARDID_LIFEVIEW_LR192: - dev_err(go->dev, "The Lifeview TV Walker Ultra is not supported. Sorry!\n"); + dev_err(&intf->dev, "The Lifeview TV Walker Ultra is not supported. Sorry!\n"); return -ENODEV; name = "Lifeview TV Walker Ultra"; board = &board_lifeview_lr192; break; case GO7007_BOARDID_SENSORAY_2250: - dev_info(go->dev, "Sensoray 2250 found\n"); + dev_info(&intf->dev, "Sensoray 2250 found\n"); name = "Sensoray 2250/2251"; board = &board_sensoray_2250; break; @@ -1112,7 +1114,7 @@ static int go7007_usb_probe(struct usb_interface *intf, board = &board_ads_usbav_709; break; default: - dev_err(go->dev, "unknown board ID %d!\n", + dev_err(&intf->dev, "unknown board ID %d!\n", (unsigned int)id->driver_info); return -ENODEV; } @@ -1247,7 +1249,7 @@ static int go7007_usb_probe(struct usb_interface *intf, sizeof(go->name)); break; default: - dev_dbg(go->dev, "unable to detect tuner type!\n"); + pr_debug("unable to detect tuner type!\n"); break; } /* Configure tuner mode selection inputs connected diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c index 3066ee2..49ea76b 100644 --- a/drivers/staging/nvec/nvec.c +++ b/drivers/staging/nvec/nvec.c @@ -681,7 +681,8 @@ static irqreturn_t nvec_interrupt(int irq, void *dev) dev_err(nvec->dev, "RX buffer overflow on %p: " "Trying to write byte %u of %u\n", - nvec->rx, nvec->rx->pos, NVEC_MSG_SIZE); + nvec->rx, nvec->rx ? nvec->rx->pos : 0, + NVEC_MSG_SIZE); break; default: nvec->state = 0; diff --git a/drivers/staging/rtl8188eu/core/rtw_ap.c b/drivers/staging/rtl8188eu/core/rtw_ap.c index 2c678f4..2f548eb 100644 --- a/drivers/staging/rtl8188eu/core/rtw_ap.c +++ b/drivers/staging/rtl8188eu/core/rtw_ap.c @@ -1115,6 +1115,9 @@ int rtw_check_beacon_data(struct adapter *padapter, u8 *pbuf, int len) return _FAIL; } + /* fix bug of flush_cam_entry at STOP AP mode */ + psta->state |= WIFI_AP_STATE; + rtw_indicate_connect(padapter); pmlmepriv->cur_network.join_res = true;/* for check if already set beacon */ return ret; } diff --git a/drivers/staging/tidspbridge/Kconfig b/drivers/staging/tidspbridge/Kconfig index 165b918..1b6d581 100644 --- a/drivers/staging/tidspbridge/Kconfig +++ b/drivers/staging/tidspbridge/Kconfig @@ -4,7 +4,7 @@ menuconfig TIDSPBRIDGE tristate "DSP Bridge driver" - depends on ARCH_OMAP3 && !ARCH_MULTIPLATFORM + depends on ARCH_OMAP3 && !ARCH_MULTIPLATFORM && BROKEN select MAILBOX select OMAP2PLUS_MBOX help diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c index aab0012..ab8b2ba 100644 --- a/drivers/staging/vt6655/hostap.c +++ b/drivers/staging/vt6655/hostap.c @@ -143,7 +143,8 @@ static int hostap_disable_hostapd(PSDevice pDevice, int rtnl_locked) DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Netdevice %s unregistered\n", pDevice->dev->name, pDevice->apdev->name); } - free_netdev(pDevice->apdev); + if (pDevice->apdev) + free_netdev(pDevice->apdev); pDevice->apdev = NULL; pDevice->bEnable8021x = false; pDevice->bEnableHostWEP = false; diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c index 1e8b841..4aa5ef5 100644 --- a/drivers/staging/vt6656/baseband.c +++ b/drivers/staging/vt6656/baseband.c @@ -939,6 +939,7 @@ int BBbVT3184Init(struct vnt_private *pDevice) u8 * pbyAgc; u16 wLengthAgc; u8 abyArray[256]; + u8 data; ntStatus = CONTROLnsRequestIn(pDevice, MESSAGE_TYPE_READ, @@ -1104,6 +1105,16 @@ else { ControlvWriteByte(pDevice,MESSAGE_REQUEST_BBREG,0x0D,0x01); RFbRFTableDownload(pDevice); + + /* Fix for TX USB resets from vendors driver */ + CONTROLnsRequestIn(pDevice, MESSAGE_TYPE_READ, USB_REG4, + MESSAGE_REQUEST_MEM, sizeof(data), &data); + + data |= 0x2; + + CONTROLnsRequestOut(pDevice, MESSAGE_TYPE_WRITE, USB_REG4, + MESSAGE_REQUEST_MEM, sizeof(data), &data); + return true;//ntStatus; } diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c index ae1676d..67ba48b 100644 --- a/drivers/staging/vt6656/hostap.c +++ b/drivers/staging/vt6656/hostap.c @@ -133,7 +133,8 @@ static int hostap_disable_hostapd(struct vnt_private *pDevice, int rtnl_locked) DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Netdevice %s unregistered\n", pDevice->dev->name, pDevice->apdev->name); } - free_netdev(pDevice->apdev); + if (pDevice->apdev) + free_netdev(pDevice->apdev); pDevice->apdev = NULL; pDevice->bEnable8021x = false; pDevice->bEnableHostWEP = false; diff --git a/drivers/staging/vt6656/rndis.h b/drivers/staging/vt6656/rndis.h index 5e07306..5cf5e73 100644 --- a/drivers/staging/vt6656/rndis.h +++ b/drivers/staging/vt6656/rndis.h @@ -66,6 +66,8 @@ #define VIAUSB20_PACKET_HEADER 0x04 +#define USB_REG4 0x604 + typedef struct _CMD_MESSAGE { u8 byData[256]; diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index 79ce363..3277d98 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -652,21 +652,30 @@ static ssize_t reset_store(struct device *dev, return -ENOMEM; /* Do not reset an active device! */ - if (bdev->bd_holders) - return -EBUSY; + if (bdev->bd_holders) { + ret = -EBUSY; + goto out; + } ret = kstrtou16(buf, 10, &do_reset); if (ret) - return ret; + goto out; - if (!do_reset) - return -EINVAL; + if (!do_reset) { + ret = -EINVAL; + goto out; + } /* Make sure all pending I/O is finished */ fsync_bdev(bdev); + bdput(bdev); zram_reset_device(zram, true); return len; + +out: + bdput(bdev); + return ret; } static void __zram_make_request(struct zram *zram, struct bio *bio, int rw) diff --git a/drivers/staging/zsmalloc/zsmalloc-main.c b/drivers/staging/zsmalloc/zsmalloc-main.c index 1a67537..3b950e5 100644 --- a/drivers/staging/zsmalloc/zsmalloc-main.c +++ b/drivers/staging/zsmalloc/zsmalloc-main.c @@ -430,7 +430,12 @@ static struct page *get_next_page(struct page *page) return next; } -/* Encode <page, obj_idx> as a single handle value */ +/* + * Encode <page, obj_idx> as a single handle value. + * On hardware platforms with physical memory starting at 0x0 the pfn + * could be 0 so we ensure that the handle will never be 0 by adjusting the + * encoded obj_idx value before encoding. + */ static void *obj_location_to_handle(struct page *page, unsigned long obj_idx) { unsigned long handle; @@ -441,17 +446,21 @@ static void *obj_location_to_handle(struct page *page, unsigned long obj_idx) } handle = page_to_pfn(page) << OBJ_INDEX_BITS; - handle |= (obj_idx & OBJ_INDEX_MASK); + handle |= ((obj_idx + 1) & OBJ_INDEX_MASK); return (void *)handle; } -/* Decode <page, obj_idx> pair from the given object handle */ +/* + * Decode <page, obj_idx> pair from the given object handle. We adjust the + * decoded obj_idx back to its original value since it was adjusted in + * obj_location_to_handle(). + */ static void obj_handle_to_location(unsigned long handle, struct page **page, unsigned long *obj_idx) { *page = pfn_to_page(handle >> OBJ_INDEX_BITS); - *obj_idx = handle & OBJ_INDEX_MASK; + *obj_idx = (handle & OBJ_INDEX_MASK) - 1; } static unsigned long obj_idx_to_offset(struct page *page, diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index 2b86f8e..71630a2 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -1855,6 +1855,9 @@ static struct console sercons = { */ static int __init amiserial_console_init(void) { + if (!MACH_IS_AMIGA) + return -ENODEV; + register_console(&sercons); return 0; } diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 7cdd1eb..0f74945 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -768,7 +768,7 @@ static size_t __process_echoes(struct tty_struct *tty) * data at the tail to prevent a subsequent overrun */ while (ldata->echo_commit - tail >= ECHO_DISCARD_WATERMARK) { if (echo_buf(ldata, tail) == ECHO_OP_START) { - if (echo_buf(ldata, tail) == ECHO_OP_ERASE_TAB) + if (echo_buf(ldata, tail + 1) == ECHO_OP_ERASE_TAB) tail += 3; else tail += 2; @@ -1998,7 +1998,10 @@ static int canon_copy_from_read_buf(struct tty_struct *tty, found = 1; size = N_TTY_BUF_SIZE - tail; - n = (found + eol + size) & (N_TTY_BUF_SIZE - 1); + n = eol - tail; + if (n > 4096) + n += 4096; + n += found; c = n; if (found && read_buf(ldata, eol) == __DISABLED_CHAR) { @@ -2243,18 +2246,19 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file, if (time) timeout = time; } - mutex_unlock(&ldata->atomic_read_lock); - remove_wait_queue(&tty->read_wait, &wait); + n_tty_set_room(tty); + up_read(&tty->termios_rwsem); + remove_wait_queue(&tty->read_wait, &wait); if (!waitqueue_active(&tty->read_wait)) ldata->minimum_to_wake = minimum; + mutex_unlock(&ldata->atomic_read_lock); + __set_current_state(TASK_RUNNING); if (b - buf) retval = b - buf; - n_tty_set_room(tty); - up_read(&tty->termios_rwsem); return retval; } diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index f3b306e..2332991 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -41,7 +41,7 @@ config SERIAL_8250_DEPRECATED_OPTIONS accept kernel parameters in both forms like 8250_core.nr_uarts=4 and 8250.nr_uarts=4. We now renamed the module back to 8250, but if anybody noticed in 3.7 and changed their userspace we still have to - keep the 8350_core.* options around until they revert the changes + keep the 8250_core.* options around until they revert the changes they already did. If 8250 is built as a module, this adds 8250_core alias instead. diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c index 481b781..e9d420f 100644 --- a/drivers/tty/serial/pmac_zilog.c +++ b/drivers/tty/serial/pmac_zilog.c @@ -2052,6 +2052,9 @@ static int __init pmz_console_init(void) /* Probe ports */ pmz_probe(); + if (pmz_ports_count == 0) + return -ENODEV; + /* TODO: Autoprobe console based on OF */ /* pmz_console.index = i; */ register_console(&pmz_console); diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 3a1a01a..c74a00a 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -2086,6 +2086,7 @@ retry_open: filp->f_op = &tty_fops; goto retry_open; } + clear_bit(TTY_HUPPED, &tty->flags); tty_unlock(tty); diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c index 67beb84..f7beb6e 100644 --- a/drivers/uio/uio.c +++ b/drivers/uio/uio.c @@ -653,6 +653,8 @@ static int uio_mmap_physical(struct vm_area_struct *vma) return -EINVAL; mem = idev->info->mem + mi; + if (mem->addr & ~PAGE_MASK) + return -ENODEV; if (vma->vm_end - vma->vm_start > mem->size) return -EINVAL; diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index 62ccf54..0283871 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -930,9 +930,10 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops, ret = m2p_add_override(mfn, pages[i], kmap_ops ? &kmap_ops[i] : NULL); if (ret) - return ret; + goto out; } + out: if (lazy) arch_leave_lazy_mmu_mode(); @@ -969,9 +970,10 @@ int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops, ret = m2p_remove_override(pages[i], kmap_ops ? &kmap_ops[i] : NULL); if (ret) - return ret; + goto out; } + out: if (lazy) arch_leave_lazy_mmu_mode(); diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index a224bc7..1eac073 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -555,6 +555,11 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, sg_dma_len(sgl) = 0; return 0; } + xen_dma_map_page(hwdev, pfn_to_page(map >> PAGE_SHIFT), + map & ~PAGE_MASK, + sg->length, + dir, + attrs); sg->dma_address = xen_phys_to_bus(map); } else { /* we are not interested in the dma_addr returned by diff --git a/fs/affs/Changes b/fs/affs/Changes index a29409c..b41c2c9 100644 --- a/fs/affs/Changes +++ b/fs/affs/Changes @@ -91,7 +91,7 @@ more 2.4 fixes: [Roman Zippel] Version 3.11 ------------ -- Converted to use 2.3.x page cache [Dave Jones <dave@powertweak.com>] +- Converted to use 2.3.x page cache [Dave Jones] - Corruption in truncate() bugfix [Ken Tyler <kent@werple.net.au>] Version 3.10 diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 6df8bd4..1e561c0 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -216,7 +216,7 @@ static int readpage_nounlock(struct file *filp, struct page *page) } SetPageUptodate(page); - if (err == 0) + if (err >= 0) ceph_readpage_to_fscache(inode, page); out: diff --git a/fs/ceph/cache.c b/fs/ceph/cache.c index 7db2e6c..8c44fdd 100644 --- a/fs/ceph/cache.c +++ b/fs/ceph/cache.c @@ -324,6 +324,9 @@ void ceph_invalidate_fscache_page(struct inode* inode, struct page *page) { struct ceph_inode_info *ci = ceph_inode(inode); + if (!PageFsCache(page)) + return; + fscache_wait_on_page_write(ci->fscache, page); fscache_uncache_page(ci->fscache, page); } diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 13976c3..3c0a4bd 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -897,7 +897,7 @@ static int __ceph_is_any_caps(struct ceph_inode_info *ci) * caller should hold i_ceph_lock. * caller will not hold session s_mutex if called from destroy_inode. */ -void __ceph_remove_cap(struct ceph_cap *cap) +void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release) { struct ceph_mds_session *session = cap->session; struct ceph_inode_info *ci = cap->ci; @@ -909,6 +909,16 @@ void __ceph_remove_cap(struct ceph_cap *cap) /* remove from session list */ spin_lock(&session->s_cap_lock); + /* + * s_cap_reconnect is protected by s_cap_lock. no one changes + * s_cap_gen while session is in the reconnect state. + */ + if (queue_release && + (!session->s_cap_reconnect || + cap->cap_gen == session->s_cap_gen)) + __queue_cap_release(session, ci->i_vino.ino, cap->cap_id, + cap->mseq, cap->issue_seq); + if (session->s_cap_iterator == cap) { /* not yet, we are iterating over this very cap */ dout("__ceph_remove_cap delaying %p removal from session %p\n", @@ -1023,7 +1033,6 @@ void __queue_cap_release(struct ceph_mds_session *session, struct ceph_mds_cap_release *head; struct ceph_mds_cap_item *item; - spin_lock(&session->s_cap_lock); BUG_ON(!session->s_num_cap_releases); msg = list_first_entry(&session->s_cap_releases, struct ceph_msg, list_head); @@ -1052,7 +1061,6 @@ void __queue_cap_release(struct ceph_mds_session *session, (int)CEPH_CAPS_PER_RELEASE, (int)msg->front.iov_len); } - spin_unlock(&session->s_cap_lock); } /* @@ -1067,12 +1075,8 @@ void ceph_queue_caps_release(struct inode *inode) p = rb_first(&ci->i_caps); while (p) { struct ceph_cap *cap = rb_entry(p, struct ceph_cap, ci_node); - struct ceph_mds_session *session = cap->session; - - __queue_cap_release(session, ceph_ino(inode), cap->cap_id, - cap->mseq, cap->issue_seq); p = rb_next(p); - __ceph_remove_cap(cap); + __ceph_remove_cap(cap, true); } } @@ -2791,7 +2795,7 @@ static void handle_cap_export(struct inode *inode, struct ceph_mds_caps *ex, } spin_unlock(&mdsc->cap_dirty_lock); } - __ceph_remove_cap(cap); + __ceph_remove_cap(cap, false); } /* else, we already released it */ @@ -2931,9 +2935,12 @@ void ceph_handle_caps(struct ceph_mds_session *session, if (!inode) { dout(" i don't have ino %llx\n", vino.ino); - if (op == CEPH_CAP_OP_IMPORT) + if (op == CEPH_CAP_OP_IMPORT) { + spin_lock(&session->s_cap_lock); __queue_cap_release(session, vino.ino, cap_id, mseq, seq); + spin_unlock(&session->s_cap_lock); + } goto flush_cap_releases; } diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 868b61d..2a0bcae 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -352,8 +352,18 @@ more: } /* note next offset and last dentry name */ + rinfo = &req->r_reply_info; + if (le32_to_cpu(rinfo->dir_dir->frag) != frag) { + frag = le32_to_cpu(rinfo->dir_dir->frag); + if (ceph_frag_is_leftmost(frag)) + fi->next_offset = 2; + else + fi->next_offset = 0; + off = fi->next_offset; + } fi->offset = fi->next_offset; fi->last_readdir = req; + fi->frag = frag; if (req->r_reply_info.dir_end) { kfree(fi->last_name); @@ -363,7 +373,6 @@ more: else fi->next_offset = 0; } else { - rinfo = &req->r_reply_info; err = note_last_dentry(fi, rinfo->dir_dname[rinfo->dir_nr-1], rinfo->dir_dname_len[rinfo->dir_nr-1]); diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 8549a48..9a8e396 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -577,6 +577,8 @@ static int fill_inode(struct inode *inode, int issued = 0, implemented; struct timespec mtime, atime, ctime; u32 nsplits; + struct ceph_inode_frag *frag; + struct rb_node *rb_node; struct ceph_buffer *xattr_blob = NULL; int err = 0; int queue_trunc = 0; @@ -751,15 +753,38 @@ no_change: /* FIXME: move me up, if/when version reflects fragtree changes */ nsplits = le32_to_cpu(info->fragtree.nsplits); mutex_lock(&ci->i_fragtree_mutex); + rb_node = rb_first(&ci->i_fragtree); for (i = 0; i < nsplits; i++) { u32 id = le32_to_cpu(info->fragtree.splits[i].frag); - struct ceph_inode_frag *frag = __get_or_create_frag(ci, id); - - if (IS_ERR(frag)) - continue; + frag = NULL; + while (rb_node) { + frag = rb_entry(rb_node, struct ceph_inode_frag, node); + if (ceph_frag_compare(frag->frag, id) >= 0) { + if (frag->frag != id) + frag = NULL; + else + rb_node = rb_next(rb_node); + break; + } + rb_node = rb_next(rb_node); + rb_erase(&frag->node, &ci->i_fragtree); + kfree(frag); + frag = NULL; + } + if (!frag) { + frag = __get_or_create_frag(ci, id); + if (IS_ERR(frag)) + continue; + } frag->split_by = le32_to_cpu(info->fragtree.splits[i].by); dout(" frag %x split by %d\n", frag->frag, frag->split_by); } + while (rb_node) { + frag = rb_entry(rb_node, struct ceph_inode_frag, node); + rb_node = rb_next(rb_node); + rb_erase(&frag->node, &ci->i_fragtree); + kfree(frag); + } mutex_unlock(&ci->i_fragtree_mutex); /* were we issued a capability? */ @@ -1250,8 +1275,20 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req, int err = 0, i; struct inode *snapdir = NULL; struct ceph_mds_request_head *rhead = req->r_request->front.iov_base; - u64 frag = le32_to_cpu(rhead->args.readdir.frag); struct ceph_dentry_info *di; + u64 r_readdir_offset = req->r_readdir_offset; + u32 frag = le32_to_cpu(rhead->args.readdir.frag); + + if (rinfo->dir_dir && + le32_to_cpu(rinfo->dir_dir->frag) != frag) { + dout("readdir_prepopulate got new frag %x -> %x\n", + frag, le32_to_cpu(rinfo->dir_dir->frag)); + frag = le32_to_cpu(rinfo->dir_dir->frag); + if (ceph_frag_is_leftmost(frag)) + r_readdir_offset = 2; + else + r_readdir_offset = 0; + } if (req->r_aborted) return readdir_prepopulate_inodes_only(req, session); @@ -1315,7 +1352,7 @@ retry_lookup: } di = dn->d_fsdata; - di->offset = ceph_make_fpos(frag, i + req->r_readdir_offset); + di->offset = ceph_make_fpos(frag, i + r_readdir_offset); /* inode */ if (dn->d_inode) { diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index b7bda5d..d90861f 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -43,6 +43,7 @@ */ struct ceph_reconnect_state { + int nr_caps; struct ceph_pagelist *pagelist; bool flock; }; @@ -443,6 +444,7 @@ static struct ceph_mds_session *register_session(struct ceph_mds_client *mdsc, INIT_LIST_HEAD(&s->s_waiting); INIT_LIST_HEAD(&s->s_unsafe); s->s_num_cap_releases = 0; + s->s_cap_reconnect = 0; s->s_cap_iterator = NULL; INIT_LIST_HEAD(&s->s_cap_releases); INIT_LIST_HEAD(&s->s_cap_releases_done); @@ -642,6 +644,8 @@ static void __unregister_request(struct ceph_mds_client *mdsc, req->r_unsafe_dir = NULL; } + complete_all(&req->r_safe_completion); + ceph_mdsc_put_request(req); } @@ -986,7 +990,7 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap, dout("removing cap %p, ci is %p, inode is %p\n", cap, ci, &ci->vfs_inode); spin_lock(&ci->i_ceph_lock); - __ceph_remove_cap(cap); + __ceph_remove_cap(cap, false); if (!__ceph_is_any_real_caps(ci)) { struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc; @@ -1231,9 +1235,7 @@ static int trim_caps_cb(struct inode *inode, struct ceph_cap *cap, void *arg) session->s_trim_caps--; if (oissued) { /* we aren't the only cap.. just remove us */ - __queue_cap_release(session, ceph_ino(inode), cap->cap_id, - cap->mseq, cap->issue_seq); - __ceph_remove_cap(cap); + __ceph_remove_cap(cap, true); } else { /* try to drop referring dentries */ spin_unlock(&ci->i_ceph_lock); @@ -1416,7 +1418,6 @@ static void discard_cap_releases(struct ceph_mds_client *mdsc, unsigned num; dout("discard_cap_releases mds%d\n", session->s_mds); - spin_lock(&session->s_cap_lock); /* zero out the in-progress message */ msg = list_first_entry(&session->s_cap_releases, @@ -1443,8 +1444,6 @@ static void discard_cap_releases(struct ceph_mds_client *mdsc, msg->front.iov_len = sizeof(*head); list_add(&msg->list_head, &session->s_cap_releases); } - - spin_unlock(&session->s_cap_lock); } /* @@ -1875,8 +1874,11 @@ static int __do_request(struct ceph_mds_client *mdsc, int mds = -1; int err = -EAGAIN; - if (req->r_err || req->r_got_result) + if (req->r_err || req->r_got_result) { + if (req->r_aborted) + __unregister_request(mdsc, req); goto out; + } if (req->r_timeout && time_after_eq(jiffies, req->r_started + req->r_timeout)) { @@ -2186,7 +2188,6 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg) if (head->safe) { req->r_got_safe = true; __unregister_request(mdsc, req); - complete_all(&req->r_safe_completion); if (req->r_got_unsafe) { /* @@ -2238,8 +2239,7 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg) err = ceph_fill_trace(mdsc->fsc->sb, req, req->r_session); if (err == 0) { if (result == 0 && (req->r_op == CEPH_MDS_OP_READDIR || - req->r_op == CEPH_MDS_OP_LSSNAP) && - rinfo->dir_nr) + req->r_op == CEPH_MDS_OP_LSSNAP)) ceph_readdir_prepopulate(req, req->r_session); ceph_unreserve_caps(mdsc, &req->r_caps_reservation); } @@ -2490,6 +2490,7 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap, cap->seq = 0; /* reset cap seq */ cap->issue_seq = 0; /* and issue_seq */ cap->mseq = 0; /* and migrate_seq */ + cap->cap_gen = cap->session->s_cap_gen; if (recon_state->flock) { rec.v2.cap_id = cpu_to_le64(cap->cap_id); @@ -2552,6 +2553,8 @@ encode_again: } else { err = ceph_pagelist_append(pagelist, &rec, reclen); } + + recon_state->nr_caps++; out_free: kfree(path); out_dput: @@ -2579,6 +2582,7 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc, struct rb_node *p; int mds = session->s_mds; int err = -ENOMEM; + int s_nr_caps; struct ceph_pagelist *pagelist; struct ceph_reconnect_state recon_state; @@ -2610,20 +2614,38 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc, dout("session %p state %s\n", session, session_state_name(session->s_state)); + spin_lock(&session->s_gen_ttl_lock); + session->s_cap_gen++; + spin_unlock(&session->s_gen_ttl_lock); + + spin_lock(&session->s_cap_lock); + /* + * notify __ceph_remove_cap() that we are composing cap reconnect. + * If a cap get released before being added to the cap reconnect, + * __ceph_remove_cap() should skip queuing cap release. + */ + session->s_cap_reconnect = 1; /* drop old cap expires; we're about to reestablish that state */ discard_cap_releases(mdsc, session); + spin_unlock(&session->s_cap_lock); /* traverse this session's caps */ - err = ceph_pagelist_encode_32(pagelist, session->s_nr_caps); + s_nr_caps = session->s_nr_caps; + err = ceph_pagelist_encode_32(pagelist, s_nr_caps); if (err) goto fail; + recon_state.nr_caps = 0; recon_state.pagelist = pagelist; recon_state.flock = session->s_con.peer_features & CEPH_FEATURE_FLOCK; err = iterate_session_caps(session, encode_caps_cb, &recon_state); if (err < 0) goto fail; + spin_lock(&session->s_cap_lock); + session->s_cap_reconnect = 0; + spin_unlock(&session->s_cap_lock); + /* * snaprealms. we provide mds with the ino, seq (version), and * parent for all of our realms. If the mds has any newer info, @@ -2646,11 +2668,18 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc, if (recon_state.flock) reply->hdr.version = cpu_to_le16(2); - if (pagelist->length) { - /* set up outbound data if we have any */ - reply->hdr.data_len = cpu_to_le32(pagelist->length); - ceph_msg_data_add_pagelist(reply, pagelist); + + /* raced with cap release? */ + if (s_nr_caps != recon_state.nr_caps) { + struct page *page = list_first_entry(&pagelist->head, + struct page, lru); + __le32 *addr = kmap_atomic(page); + *addr = cpu_to_le32(recon_state.nr_caps); + kunmap_atomic(addr); } + + reply->hdr.data_len = cpu_to_le32(pagelist->length); + ceph_msg_data_add_pagelist(reply, pagelist); ceph_con_send(&session->s_con, reply); mutex_unlock(&session->s_mutex); diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h index c2a19fb..4c053d0 100644 --- a/fs/ceph/mds_client.h +++ b/fs/ceph/mds_client.h @@ -132,6 +132,7 @@ struct ceph_mds_session { struct list_head s_caps; /* all caps issued by this session */ int s_nr_caps, s_trim_caps; int s_num_cap_releases; + int s_cap_reconnect; struct list_head s_cap_releases; /* waiting cap_release messages */ struct list_head s_cap_releases_done; /* ready to send */ struct ceph_cap *s_cap_iterator; diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 6014b0a..ef4ac38 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -741,13 +741,7 @@ extern int ceph_add_cap(struct inode *inode, int fmode, unsigned issued, unsigned wanted, unsigned cap, unsigned seq, u64 realmino, int flags, struct ceph_cap_reservation *caps_reservation); -extern void __ceph_remove_cap(struct ceph_cap *cap); -static inline void ceph_remove_cap(struct ceph_cap *cap) -{ - spin_lock(&cap->ci->i_ceph_lock); - __ceph_remove_cap(cap); - spin_unlock(&cap->ci->i_ceph_lock); -} +extern void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release); extern void ceph_put_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap); diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index d9ea7ad..f918a99 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -384,6 +384,7 @@ struct smb_version_operations { int (*clone_range)(const unsigned int, struct cifsFileInfo *src_file, struct cifsFileInfo *target_file, u64 src_off, u64 len, u64 dest_off); + int (*validate_negotiate)(const unsigned int, struct cifs_tcon *); }; struct smb_version_values { diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c index 409b45e..7749230 100644 --- a/fs/cifs/ioctl.c +++ b/fs/cifs/ioctl.c @@ -26,13 +26,15 @@ #include <linux/mount.h> #include <linux/mm.h> #include <linux/pagemap.h> -#include <linux/btrfs.h> #include "cifspdu.h" #include "cifsglob.h" #include "cifsproto.h" #include "cifs_debug.h" #include "cifsfs.h" +#define CIFS_IOCTL_MAGIC 0xCF +#define CIFS_IOC_COPYCHUNK_FILE _IOW(CIFS_IOCTL_MAGIC, 3, int) + static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file, unsigned long srcfd, u64 off, u64 len, u64 destoff) { @@ -213,7 +215,7 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg) cifs_dbg(FYI, "set compress flag rc %d\n", rc); } break; - case BTRFS_IOC_CLONE: + case CIFS_IOC_COPYCHUNK_FILE: rc = cifs_ioctl_clone(xid, filep, arg, 0, 0, 0); break; default: diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 11dde4b..757da3e 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -532,7 +532,10 @@ smb2_clone_range(const unsigned int xid, int rc; unsigned int ret_data_len; struct copychunk_ioctl *pcchunk; - char *retbuf = NULL; + struct copychunk_ioctl_rsp *retbuf = NULL; + struct cifs_tcon *tcon; + int chunks_copied = 0; + bool chunk_sizes_updated = false; pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL); @@ -547,27 +550,96 @@ smb2_clone_range(const unsigned int xid, /* Note: request_res_key sets res_key null only if rc !=0 */ if (rc) - return rc; + goto cchunk_out; /* For now array only one chunk long, will make more flexible later */ pcchunk->ChunkCount = __constant_cpu_to_le32(1); pcchunk->Reserved = 0; - pcchunk->SourceOffset = cpu_to_le64(src_off); - pcchunk->TargetOffset = cpu_to_le64(dest_off); - pcchunk->Length = cpu_to_le32(len); pcchunk->Reserved2 = 0; - /* Request that server copy to target from src file identified by key */ - rc = SMB2_ioctl(xid, tlink_tcon(trgtfile->tlink), - trgtfile->fid.persistent_fid, - trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE, - true /* is_fsctl */, (char *)pcchunk, - sizeof(struct copychunk_ioctl), &retbuf, &ret_data_len); + tcon = tlink_tcon(trgtfile->tlink); - /* BB need to special case rc = EINVAL to alter chunk size */ + while (len > 0) { + pcchunk->SourceOffset = cpu_to_le64(src_off); + pcchunk->TargetOffset = cpu_to_le64(dest_off); + pcchunk->Length = + cpu_to_le32(min_t(u32, len, tcon->max_bytes_chunk)); - cifs_dbg(FYI, "rc %d data length out %d\n", rc, ret_data_len); + /* Request server copy to target from src identified by key */ + rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid, + trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE, + true /* is_fsctl */, (char *)pcchunk, + sizeof(struct copychunk_ioctl), (char **)&retbuf, + &ret_data_len); + if (rc == 0) { + if (ret_data_len != + sizeof(struct copychunk_ioctl_rsp)) { + cifs_dbg(VFS, "invalid cchunk response size\n"); + rc = -EIO; + goto cchunk_out; + } + if (retbuf->TotalBytesWritten == 0) { + cifs_dbg(FYI, "no bytes copied\n"); + rc = -EIO; + goto cchunk_out; + } + /* + * Check if server claimed to write more than we asked + */ + if (le32_to_cpu(retbuf->TotalBytesWritten) > + le32_to_cpu(pcchunk->Length)) { + cifs_dbg(VFS, "invalid copy chunk response\n"); + rc = -EIO; + goto cchunk_out; + } + if (le32_to_cpu(retbuf->ChunksWritten) != 1) { + cifs_dbg(VFS, "invalid num chunks written\n"); + rc = -EIO; + goto cchunk_out; + } + chunks_copied++; + + src_off += le32_to_cpu(retbuf->TotalBytesWritten); + dest_off += le32_to_cpu(retbuf->TotalBytesWritten); + len -= le32_to_cpu(retbuf->TotalBytesWritten); + + cifs_dbg(FYI, "Chunks %d PartialChunk %d Total %d\n", + le32_to_cpu(retbuf->ChunksWritten), + le32_to_cpu(retbuf->ChunkBytesWritten), + le32_to_cpu(retbuf->TotalBytesWritten)); + } else if (rc == -EINVAL) { + if (ret_data_len != sizeof(struct copychunk_ioctl_rsp)) + goto cchunk_out; + + cifs_dbg(FYI, "MaxChunks %d BytesChunk %d MaxCopy %d\n", + le32_to_cpu(retbuf->ChunksWritten), + le32_to_cpu(retbuf->ChunkBytesWritten), + le32_to_cpu(retbuf->TotalBytesWritten)); + + /* + * Check if this is the first request using these sizes, + * (ie check if copy succeed once with original sizes + * and check if the server gave us different sizes after + * we already updated max sizes on previous request). + * if not then why is the server returning an error now + */ + if ((chunks_copied != 0) || chunk_sizes_updated) + goto cchunk_out; + + /* Check that server is not asking us to grow size */ + if (le32_to_cpu(retbuf->ChunkBytesWritten) < + tcon->max_bytes_chunk) + tcon->max_bytes_chunk = + le32_to_cpu(retbuf->ChunkBytesWritten); + else + goto cchunk_out; /* server gave us bogus size */ + + /* No need to change MaxChunks since already set to 1 */ + chunk_sizes_updated = true; + } + } +cchunk_out: kfree(pcchunk); return rc; } @@ -1247,6 +1319,7 @@ struct smb_version_operations smb30_operations = { .create_lease_buf = smb3_create_lease_buf, .parse_lease_buf = smb3_parse_lease_buf, .clone_range = smb2_clone_range, + .validate_negotiate = smb3_validate_negotiate, }; struct smb_version_values smb20_values = { diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index d65270c..2013234 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -454,6 +454,81 @@ neg_exit: return rc; } +int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon) +{ + int rc = 0; + struct validate_negotiate_info_req vneg_inbuf; + struct validate_negotiate_info_rsp *pneg_rsp; + u32 rsplen; + + cifs_dbg(FYI, "validate negotiate\n"); + + /* + * validation ioctl must be signed, so no point sending this if we + * can not sign it. We could eventually change this to selectively + * sign just this, the first and only signed request on a connection. + * This is good enough for now since a user who wants better security + * would also enable signing on the mount. Having validation of + * negotiate info for signed connections helps reduce attack vectors + */ + if (tcon->ses->server->sign == false) + return 0; /* validation requires signing */ + + vneg_inbuf.Capabilities = + cpu_to_le32(tcon->ses->server->vals->req_capabilities); + memcpy(vneg_inbuf.Guid, cifs_client_guid, SMB2_CLIENT_GUID_SIZE); + + if (tcon->ses->sign) + vneg_inbuf.SecurityMode = + cpu_to_le16(SMB2_NEGOTIATE_SIGNING_REQUIRED); + else if (global_secflags & CIFSSEC_MAY_SIGN) + vneg_inbuf.SecurityMode = + cpu_to_le16(SMB2_NEGOTIATE_SIGNING_ENABLED); + else + vneg_inbuf.SecurityMode = 0; + + vneg_inbuf.DialectCount = cpu_to_le16(1); + vneg_inbuf.Dialects[0] = + cpu_to_le16(tcon->ses->server->vals->protocol_id); + + rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, + FSCTL_VALIDATE_NEGOTIATE_INFO, true /* is_fsctl */, + (char *)&vneg_inbuf, sizeof(struct validate_negotiate_info_req), + (char **)&pneg_rsp, &rsplen); + + if (rc != 0) { + cifs_dbg(VFS, "validate protocol negotiate failed: %d\n", rc); + return -EIO; + } + + if (rsplen != sizeof(struct validate_negotiate_info_rsp)) { + cifs_dbg(VFS, "invalid size of protocol negotiate response\n"); + return -EIO; + } + + /* check validate negotiate info response matches what we got earlier */ + if (pneg_rsp->Dialect != + cpu_to_le16(tcon->ses->server->vals->protocol_id)) + goto vneg_out; + + if (pneg_rsp->SecurityMode != cpu_to_le16(tcon->ses->server->sec_mode)) + goto vneg_out; + + /* do not validate server guid because not saved at negprot time yet */ + + if ((le32_to_cpu(pneg_rsp->Capabilities) | SMB2_NT_FIND | + SMB2_LARGE_FILES) != tcon->ses->server->capabilities) + goto vneg_out; + + /* validate negotiate successful */ + cifs_dbg(FYI, "validate negotiate info successful\n"); + return 0; + +vneg_out: + cifs_dbg(VFS, "protocol revalidation - security settings mismatch\n"); + return -EIO; +} + int SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses, const struct nls_table *nls_cp) @@ -829,6 +904,8 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree, ((tcon->share_flags & SHI1005_FLAGS_DFS) == 0)) cifs_dbg(VFS, "DFS capability contradicts DFS flag\n"); init_copy_chunk_defaults(tcon); + if (tcon->ses->server->ops->validate_negotiate) + rc = tcon->ses->server->ops->validate_negotiate(xid, tcon); tcon_exit: free_rsp_buf(resp_buftype, rsp); kfree(unc_path); @@ -1214,10 +1291,17 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid, rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buftype, 0); rsp = (struct smb2_ioctl_rsp *)iov[0].iov_base; - if (rc != 0) { + if ((rc != 0) && (rc != -EINVAL)) { if (tcon) cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE); goto ioctl_exit; + } else if (rc == -EINVAL) { + if ((opcode != FSCTL_SRV_COPYCHUNK_WRITE) && + (opcode != FSCTL_SRV_COPYCHUNK)) { + if (tcon) + cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE); + goto ioctl_exit; + } } /* check if caller wants to look at return data or just return rc */ @@ -2154,11 +2238,9 @@ send_set_info(const unsigned int xid, struct cifs_tcon *tcon, rc = SendReceive2(xid, ses, iov, num, &resp_buftype, 0); rsp = (struct smb2_set_info_rsp *)iov[0].iov_base; - if (rc != 0) { + if (rc != 0) cifs_stats_fail_inc(tcon, SMB2_SET_INFO_HE); - goto out; - } -out: + free_rsp_buf(resp_buftype, rsp); kfree(iov); return rc; diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h index f88320b..2022c54 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -577,13 +577,19 @@ struct copychunk_ioctl_rsp { __le32 TotalBytesWritten; } __packed; -/* Response and Request are the same format */ -struct validate_negotiate_info { +struct validate_negotiate_info_req { __le32 Capabilities; __u8 Guid[SMB2_CLIENT_GUID_SIZE]; __le16 SecurityMode; __le16 DialectCount; - __le16 Dialect[1]; + __le16 Dialects[1]; /* dialect (someday maybe list) client asked for */ +} __packed; + +struct validate_negotiate_info_rsp { + __le32 Capabilities; + __u8 Guid[SMB2_CLIENT_GUID_SIZE]; + __le16 SecurityMode; + __le16 Dialect; /* Dialect in use for the connection */ } __packed; #define RSS_CAPABLE 0x00000001 diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h index b4eea10..93adc64 100644 --- a/fs/cifs/smb2proto.h +++ b/fs/cifs/smb2proto.h @@ -162,5 +162,6 @@ extern int smb2_lockv(const unsigned int xid, struct cifs_tcon *tcon, struct smb2_lock_element *buf); extern int SMB2_lease_break(const unsigned int xid, struct cifs_tcon *tcon, __u8 *lease_key, const __le32 lease_state); +extern int smb3_validate_negotiate(const unsigned int, struct cifs_tcon *); #endif /* _SMB2PROTO_H */ diff --git a/fs/cifs/smbfsctl.h b/fs/cifs/smbfsctl.h index a4b2391f..0e538b5 100644 --- a/fs/cifs/smbfsctl.h +++ b/fs/cifs/smbfsctl.h @@ -90,7 +90,7 @@ #define FSCTL_LMR_REQUEST_RESILIENCY 0x001401D4 /* BB add struct */ #define FSCTL_LMR_GET_LINK_TRACK_INF 0x001400E8 /* BB add struct */ #define FSCTL_LMR_SET_LINK_TRACK_INF 0x001400EC /* BB add struct */ -#define FSCTL_VALIDATE_NEGOTIATE_INFO 0x00140204 /* BB add struct */ +#define FSCTL_VALIDATE_NEGOTIATE_INFO 0x00140204 /* Perform server-side data movement */ #define FSCTL_SRV_COPYCHUNK 0x001440F2 #define FSCTL_SRV_COPYCHUNK_WRITE 0x001480F2 @@ -513,8 +513,7 @@ static int unlazy_walk(struct nameidata *nd, struct dentry *dentry) if (!lockref_get_not_dead(&parent->d_lockref)) { nd->path.dentry = NULL; - rcu_read_unlock(); - return -ECHILD; + goto out; } /* @@ -726,11 +726,25 @@ pipe_poll(struct file *filp, poll_table *wait) return mask; } +static void put_pipe_info(struct inode *inode, struct pipe_inode_info *pipe) +{ + int kill = 0; + + spin_lock(&inode->i_lock); + if (!--pipe->files) { + inode->i_pipe = NULL; + kill = 1; + } + spin_unlock(&inode->i_lock); + + if (kill) + free_pipe_info(pipe); +} + static int pipe_release(struct inode *inode, struct file *file) { - struct pipe_inode_info *pipe = inode->i_pipe; - int kill = 0; + struct pipe_inode_info *pipe = file->private_data; __pipe_lock(pipe); if (file->f_mode & FMODE_READ) @@ -743,17 +757,9 @@ pipe_release(struct inode *inode, struct file *file) kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN); kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT); } - spin_lock(&inode->i_lock); - if (!--pipe->files) { - inode->i_pipe = NULL; - kill = 1; - } - spin_unlock(&inode->i_lock); __pipe_unlock(pipe); - if (kill) - free_pipe_info(pipe); - + put_pipe_info(inode, pipe); return 0; } @@ -1014,7 +1020,6 @@ static int fifo_open(struct inode *inode, struct file *filp) { struct pipe_inode_info *pipe; bool is_pipe = inode->i_sb->s_magic == PIPEFS_MAGIC; - int kill = 0; int ret; filp->f_version = 0; @@ -1130,15 +1135,9 @@ err_wr: goto err; err: - spin_lock(&inode->i_lock); - if (!--pipe->files) { - inode->i_pipe = NULL; - kill = 1; - } - spin_unlock(&inode->i_lock); __pipe_unlock(pipe); - if (kill) - free_pipe_info(pipe); + + put_pipe_info(inode, pipe); return ret; } diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index 79b5da2..b94f936 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -609,7 +609,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file) struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata; struct kobject *kobj = attr_sd->s_parent->s_dir.kobj; struct sysfs_open_file *of; - bool has_read, has_write; + bool has_read, has_write, has_mmap; int error = -EACCES; /* need attr_sd for attr and ops, its parent for kobj */ @@ -621,6 +621,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file) has_read = battr->read || battr->mmap; has_write = battr->write || battr->mmap; + has_mmap = battr->mmap; } else { const struct sysfs_ops *ops = sysfs_file_ops(attr_sd); @@ -632,6 +633,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file) has_read = ops->show; has_write = ops->store; + has_mmap = false; } /* check perms and supported operations */ @@ -649,7 +651,23 @@ static int sysfs_open_file(struct inode *inode, struct file *file) if (!of) goto err_out; - mutex_init(&of->mutex); + /* + * The following is done to give a different lockdep key to + * @of->mutex for files which implement mmap. This is a rather + * crude way to avoid false positive lockdep warning around + * mm->mmap_sem - mmap nests @of->mutex under mm->mmap_sem and + * reading /sys/block/sda/trace/act_mask grabs sr_mutex, under + * which mm->mmap_sem nests, while holding @of->mutex. As each + * open file has a separate mutex, it's okay as long as those don't + * happen on the same file. At this point, we can't easily give + * each file a separate locking class. Let's differentiate on + * whether the file has mmap or not for now. + */ + if (has_mmap) + mutex_init(&of->mutex); + else + mutex_init(&of->mutex); + of->sd = attr_sd; of->file = file; diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h index d98c670..3ea214c 100644 --- a/include/acpi/acconfig.h +++ b/include/acpi/acconfig.h @@ -83,7 +83,9 @@ * Should the subsystem abort the loading of an ACPI table if the * table checksum is incorrect? */ +#ifndef ACPI_CHECKSUM_ABORT #define ACPI_CHECKSUM_ABORT FALSE +#endif /* * Generate a version of ACPICA that only supports "reduced hardware" diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 7b2de02..c602c77 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -100,6 +100,7 @@ enum acpi_hotplug_mode { struct acpi_hotplug_profile { struct kobject kobj; bool enabled:1; + bool ignore:1; enum acpi_hotplug_mode mode; }; diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index d8f9457..4278aba9 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -46,7 +46,7 @@ /* Current ACPICA subsystem version in YYYYMMDD format */ -#define ACPI_CA_VERSION 0x20130927 +#define ACPI_CA_VERSION 0x20131115 #include <acpi/acconfig.h> #include <acpi/actypes.h> diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index 9abbe63..8c9b7a1 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -248,6 +248,9 @@ struct ftrace_event_call { #ifdef CONFIG_PERF_EVENTS int perf_refcount; struct hlist_head __percpu *perf_events; + + int (*perf_perm)(struct ftrace_event_call *, + struct perf_event *); #endif }; @@ -317,6 +320,19 @@ struct ftrace_event_file { } \ early_initcall(trace_init_flags_##name); +#define __TRACE_EVENT_PERF_PERM(name, expr...) \ + static int perf_perm_##name(struct ftrace_event_call *tp_event, \ + struct perf_event *p_event) \ + { \ + return ({ expr; }); \ + } \ + static int __init trace_init_perf_perm_##name(void) \ + { \ + event_##name.perf_perm = &perf_perm_##name; \ + return 0; \ + } \ + early_initcall(trace_init_perf_perm_##name); + #define PERF_MAX_TRACE_SIZE 2048 #define MAX_FILTER_STR_VAL 256 /* Should handle KSYM_SYMBOL_LEN */ diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 656a27e..82eac61 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -125,6 +125,13 @@ extern struct gpio_chip *gpiochip_find(void *data, int gpiod_lock_as_irq(struct gpio_desc *desc); void gpiod_unlock_as_irq(struct gpio_desc *desc); +enum gpio_lookup_flags { + GPIO_ACTIVE_HIGH = (0 << 0), + GPIO_ACTIVE_LOW = (1 << 0), + GPIO_OPEN_DRAIN = (1 << 1), + GPIO_OPEN_SOURCE = (1 << 2), +}; + /** * Lookup table for associating GPIOs to specific devices and functions using * platform data. @@ -152,9 +159,9 @@ struct gpiod_lookup { */ unsigned int idx; /* - * mask of GPIOF_* values + * mask of GPIO_* values */ - unsigned long flags; + enum gpio_lookup_flags flags; }; /* diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h index a265af2..206a2af 100644 --- a/include/linux/hid-sensor-hub.h +++ b/include/linux/hid-sensor-hub.h @@ -21,6 +21,8 @@ #include <linux/hid.h> #include <linux/hid-sensor-ids.h> +#include <linux/iio/iio.h> +#include <linux/iio/trigger.h> /** * struct hid_sensor_hub_attribute_info - Attribute info @@ -184,6 +186,7 @@ struct hid_sensor_common { struct platform_device *pdev; unsigned usage_id; bool data_ready; + struct iio_trigger *trigger; struct hid_sensor_hub_attribute_info poll; struct hid_sensor_hub_attribute_info report_state; struct hid_sensor_hub_attribute_info power_state; diff --git a/include/linux/irqreturn.h b/include/linux/irqreturn.h index 714ba08..e374e36 100644 --- a/include/linux/irqreturn.h +++ b/include/linux/irqreturn.h @@ -14,6 +14,6 @@ enum irqreturn { }; typedef enum irqreturn irqreturn_t; -#define IRQ_RETVAL(x) ((x) != IRQ_NONE) +#define IRQ_RETVAL(x) ((x) ? IRQ_HANDLED : IRQ_NONE) #endif diff --git a/include/linux/sched.h b/include/linux/sched.h index 7e35d4b..768b037 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -831,8 +831,6 @@ struct sched_domain { unsigned int balance_interval; /* initialise to 1. units in ms. */ unsigned int nr_balance_failed; /* initialise to 0 */ - u64 last_update; - /* idle_balance() stats */ u64 max_newidle_lb_cost; unsigned long next_decay_max_lb_cost; diff --git a/include/linux/slab.h b/include/linux/slab.h index c2bba24..1e2f4fe 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -388,10 +388,55 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags) /** * kmalloc - allocate memory * @size: how many bytes of memory are required. - * @flags: the type of memory to allocate (see kcalloc). + * @flags: the type of memory to allocate. * * kmalloc is the normal method of allocating memory * for objects smaller than page size in the kernel. + * + * The @flags argument may be one of: + * + * %GFP_USER - Allocate memory on behalf of user. May sleep. + * + * %GFP_KERNEL - Allocate normal kernel ram. May sleep. + * + * %GFP_ATOMIC - Allocation will not sleep. May use emergency pools. + * For example, use this inside interrupt handlers. + * + * %GFP_HIGHUSER - Allocate pages from high memory. + * + * %GFP_NOIO - Do not do any I/O at all while trying to get memory. + * + * %GFP_NOFS - Do not make any fs calls while trying to get memory. + * + * %GFP_NOWAIT - Allocation will not sleep. + * + * %GFP_THISNODE - Allocate node-local memory only. + * + * %GFP_DMA - Allocation suitable for DMA. + * Should only be used for kmalloc() caches. Otherwise, use a + * slab created with SLAB_DMA. + * + * Also it is possible to set different flags by OR'ing + * in one or more of the following additional @flags: + * + * %__GFP_COLD - Request cache-cold pages instead of + * trying to return cache-warm pages. + * + * %__GFP_HIGH - This allocation has high priority and may use emergency pools. + * + * %__GFP_NOFAIL - Indicate that this allocation is in no way allowed to fail + * (think twice before using). + * + * %__GFP_NORETRY - If memory is not immediately available, + * then give up at once. + * + * %__GFP_NOWARN - If allocation fails, don't issue any warnings. + * + * %__GFP_REPEAT - If allocation fails initially, try once more before failing. + * + * There are other flags available as well, but these are not intended + * for general use, and so are not documented here. For a full list of + * potential flags, always refer to linux/gfp.h. */ static __always_inline void *kmalloc(size_t size, gfp_t flags) { @@ -502,61 +547,6 @@ int cache_show(struct kmem_cache *s, struct seq_file *m); void print_slabinfo_header(struct seq_file *m); /** - * kmalloc - allocate memory - * @size: how many bytes of memory are required. - * @flags: the type of memory to allocate. - * - * The @flags argument may be one of: - * - * %GFP_USER - Allocate memory on behalf of user. May sleep. - * - * %GFP_KERNEL - Allocate normal kernel ram. May sleep. - * - * %GFP_ATOMIC - Allocation will not sleep. May use emergency pools. - * For example, use this inside interrupt handlers. - * - * %GFP_HIGHUSER - Allocate pages from high memory. - * - * %GFP_NOIO - Do not do any I/O at all while trying to get memory. - * - * %GFP_NOFS - Do not make any fs calls while trying to get memory. - * - * %GFP_NOWAIT - Allocation will not sleep. - * - * %GFP_THISNODE - Allocate node-local memory only. - * - * %GFP_DMA - Allocation suitable for DMA. - * Should only be used for kmalloc() caches. Otherwise, use a - * slab created with SLAB_DMA. - * - * Also it is possible to set different flags by OR'ing - * in one or more of the following additional @flags: - * - * %__GFP_COLD - Request cache-cold pages instead of - * trying to return cache-warm pages. - * - * %__GFP_HIGH - This allocation has high priority and may use emergency pools. - * - * %__GFP_NOFAIL - Indicate that this allocation is in no way allowed to fail - * (think twice before using). - * - * %__GFP_NORETRY - If memory is not immediately available, - * then give up at once. - * - * %__GFP_NOWARN - If allocation fails, don't issue any warnings. - * - * %__GFP_REPEAT - If allocation fails initially, try once more before failing. - * - * There are other flags available as well, but these are not intended - * for general use, and so are not documented here. For a full list of - * potential flags, always refer to linux/gfp.h. - * - * kmalloc is the normal method of allocating memory - * in the kernel. - */ -static __always_inline void *kmalloc(size_t size, gfp_t flags); - -/** * kmalloc_array - allocate memory for an array. * @n: number of elements. * @size: element size. diff --git a/include/linux/tegra-powergate.h b/include/linux/tegra-powergate.h index c98cfa4..fd44983 100644 --- a/include/linux/tegra-powergate.h +++ b/include/linux/tegra-powergate.h @@ -45,6 +45,7 @@ struct clk; #define TEGRA_POWERGATE_3D0 TEGRA_POWERGATE_3D +#ifdef CONFIG_ARCH_TEGRA int tegra_powergate_is_powered(int id); int tegra_powergate_power_on(int id); int tegra_powergate_power_off(int id); @@ -52,5 +53,31 @@ int tegra_powergate_remove_clamping(int id); /* Must be called with clk disabled, and returns with clk enabled */ int tegra_powergate_sequence_power_up(int id, struct clk *clk); +#else +static inline int tegra_powergate_is_powered(int id) +{ + return -ENOSYS; +} + +static inline int tegra_powergate_power_on(int id) +{ + return -ENOSYS; +} + +static inline int tegra_powergate_power_off(int id) +{ + return -ENOSYS; +} + +static inline int tegra_powergate_remove_clamping(int id) +{ + return -ENOSYS; +} + +static inline int tegra_powergate_sequence_power_up(int id, struct clk *clk) +{ + return -ENOSYS; +} +#endif #endif /* _MACH_TEGRA_POWERGATE_H_ */ diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index ebeab36..f16dc0a 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -267,6 +267,8 @@ static inline void tracepoint_synchronize_unregister(void) #define TRACE_EVENT_FLAGS(event, flag) +#define TRACE_EVENT_PERF_PERM(event, expr...) + #endif /* DECLARE_TRACE */ #ifndef TRACE_EVENT @@ -399,4 +401,6 @@ static inline void tracepoint_synchronize_unregister(void) #define TRACE_EVENT_FLAGS(event, flag) +#define TRACE_EVENT_PERF_PERM(event, expr...) + #endif /* ifdef TRACE_EVENT (see note above) */ diff --git a/include/net/ip.h b/include/net/ip.h index 217bc5b..5a25f36 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -473,7 +473,7 @@ int compat_ip_getsockopt(struct sock *sk, int level, int optname, int ip_ra_control(struct sock *sk, unsigned char on, void (*destructor)(struct sock *)); -int ip_recv_error(struct sock *sk, struct msghdr *msg, int len); +int ip_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len); void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port, u32 info, u8 *payload); void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 dport, diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 2a5f668..eb198ac 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -776,8 +776,10 @@ int compat_ipv6_getsockopt(struct sock *sk, int level, int optname, int ip6_datagram_connect(struct sock *sk, struct sockaddr *addr, int addr_len); -int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len); -int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len); +int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, + int *addr_len); +int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len, + int *addr_len); void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port, u32 info, u8 *payload); void ipv6_local_error(struct sock *sk, int err, struct flowi6 *fl6, u32 info); diff --git a/include/net/ping.h b/include/net/ping.h index 3f67704..90f4841 100644 --- a/include/net/ping.h +++ b/include/net/ping.h @@ -31,7 +31,8 @@ /* Compatibility glue so we can support IPv6 when it's compiled as a module */ struct pingv6_ops { - int (*ipv6_recv_error)(struct sock *sk, struct msghdr *msg, int len); + int (*ipv6_recv_error)(struct sock *sk, struct msghdr *msg, int len, + int *addr_len); int (*ip6_datagram_recv_ctl)(struct sock *sk, struct msghdr *msg, struct sk_buff *skb); int (*icmpv6_err_convert)(u8 type, u8 code, int *err); diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 2174d8d..ea0ca5f 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -629,6 +629,7 @@ struct sctp_chunk { #define SCTP_NEED_FRTX 0x1 #define SCTP_DONT_FRTX 0x2 __u16 rtt_in_progress:1, /* This chunk used for RTT calc? */ + resent:1, /* Has this chunk ever been resent. */ has_tsn:1, /* Does this chunk have a TSN yet? */ has_ssn:1, /* Does this chunk have a SSN yet? */ singleton:1, /* Only chunk in the packet? */ diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index 52594b2..5c38606 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -90,6 +90,10 @@ #define TRACE_EVENT_FLAGS(name, value) \ __TRACE_EVENT_FLAGS(name, value) +#undef TRACE_EVENT_PERF_PERM +#define TRACE_EVENT_PERF_PERM(name, expr...) \ + __TRACE_EVENT_PERF_PERM(name, expr) + #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) @@ -140,6 +144,9 @@ #undef TRACE_EVENT_FLAGS #define TRACE_EVENT_FLAGS(event, flag) +#undef TRACE_EVENT_PERF_PERM +#define TRACE_EVENT_PERF_PERM(event, expr...) + #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) /* @@ -372,7 +379,8 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call) \ __data_size += (len) * sizeof(type); #undef __string -#define __string(item, src) __dynamic_array(char, item, strlen(src) + 1) +#define __string(item, src) __dynamic_array(char, item, \ + strlen((src) ? (const char *)(src) : "(null)") + 1) #undef DECLARE_EVENT_CLASS #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ @@ -501,7 +509,7 @@ static inline notrace int ftrace_get_offsets_##call( \ #undef __assign_str #define __assign_str(dst, src) \ - strcpy(__get_str(dst), src); + strcpy(__get_str(dst), (src) ? (const char *)(src) : "(null)"); #undef TP_fast_assign #define TP_fast_assign(args...) args diff --git a/include/uapi/linux/genetlink.h b/include/uapi/linux/genetlink.h index 1af72d8..c3363ba 100644 --- a/include/uapi/linux/genetlink.h +++ b/include/uapi/linux/genetlink.h @@ -28,6 +28,7 @@ struct genlmsghdr { #define GENL_ID_GENERATE 0 #define GENL_ID_CTRL NLMSG_MIN_TYPE #define GENL_ID_VFS_DQUOT (NLMSG_MIN_TYPE + 1) +#define GENL_ID_PMCRAID (NLMSG_MIN_TYPE + 2) /************************************************************************** * Controller diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index b78566f..6db4601 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -488,7 +488,9 @@ enum { IFLA_HSR_UNSPEC, IFLA_HSR_SLAVE1, IFLA_HSR_SLAVE2, - IFLA_HSR_MULTICAST_SPEC, + IFLA_HSR_MULTICAST_SPEC, /* Last byte of supervision addr */ + IFLA_HSR_SUPERVISION_ADDR, /* Supervision frame multicast addr */ + IFLA_HSR_SEQ_NR, __IFLA_HSR_MAX, }; diff --git a/include/uapi/linux/netlink_diag.h b/include/uapi/linux/netlink_diag.h index 4e31db4..f2159d3 100644 --- a/include/uapi/linux/netlink_diag.h +++ b/include/uapi/linux/netlink_diag.h @@ -33,6 +33,7 @@ struct netlink_diag_ring { }; enum { + /* NETLINK_DIAG_NONE, standard nl API requires this attribute! */ NETLINK_DIAG_MEMINFO, NETLINK_DIAG_GROUPS, NETLINK_DIAG_RX_RING, diff --git a/include/uapi/linux/packet_diag.h b/include/uapi/linux/packet_diag.h index b2cc0cd..d08c63f 100644 --- a/include/uapi/linux/packet_diag.h +++ b/include/uapi/linux/packet_diag.h @@ -29,6 +29,7 @@ struct packet_diag_msg { }; enum { + /* PACKET_DIAG_NONE, standard nl API requires this attribute! */ PACKET_DIAG_INFO, PACKET_DIAG_MCLIST, PACKET_DIAG_RX_RING, diff --git a/include/uapi/linux/unix_diag.h b/include/uapi/linux/unix_diag.h index b9e2a6a..1eb0b8d 100644 --- a/include/uapi/linux/unix_diag.h +++ b/include/uapi/linux/unix_diag.h @@ -31,6 +31,7 @@ struct unix_diag_msg { }; enum { + /* UNIX_DIAG_NONE, standard nl API requires this attribute! */ UNIX_DIAG_NAME, UNIX_DIAG_VFS, UNIX_DIAG_PEER, diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 4c62513..8b729c2 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -90,6 +90,14 @@ static DEFINE_MUTEX(cgroup_mutex); static DEFINE_MUTEX(cgroup_root_mutex); /* + * cgroup destruction makes heavy use of work items and there can be a lot + * of concurrent destructions. Use a separate workqueue so that cgroup + * destruction work items don't end up filling up max_active of system_wq + * which may lead to deadlock. + */ +static struct workqueue_struct *cgroup_destroy_wq; + +/* * Generate an array of cgroup subsystem pointers. At boot time, this is * populated with the built in subsystems, and modular subsystems are * registered after that. The mutable section of this array is protected by @@ -191,6 +199,7 @@ static void cgroup_destroy_css_killed(struct cgroup *cgrp); static int cgroup_destroy_locked(struct cgroup *cgrp); static int cgroup_addrm_files(struct cgroup *cgrp, struct cftype cfts[], bool is_add); +static int cgroup_file_release(struct inode *inode, struct file *file); /** * cgroup_css - obtain a cgroup's css for the specified subsystem @@ -871,7 +880,7 @@ static void cgroup_free_rcu(struct rcu_head *head) struct cgroup *cgrp = container_of(head, struct cgroup, rcu_head); INIT_WORK(&cgrp->destroy_work, cgroup_free_fn); - schedule_work(&cgrp->destroy_work); + queue_work(cgroup_destroy_wq, &cgrp->destroy_work); } static void cgroup_diput(struct dentry *dentry, struct inode *inode) @@ -2421,7 +2430,7 @@ static const struct file_operations cgroup_seqfile_operations = { .read = seq_read, .write = cgroup_file_write, .llseek = seq_lseek, - .release = single_release, + .release = cgroup_file_release, }; static int cgroup_file_open(struct inode *inode, struct file *file) @@ -2482,6 +2491,8 @@ static int cgroup_file_release(struct inode *inode, struct file *file) ret = cft->release(inode, file); if (css->ss) css_put(css); + if (file->f_op == &cgroup_seqfile_operations) + single_release(inode, file); return ret; } @@ -4249,7 +4260,7 @@ static void css_free_rcu_fn(struct rcu_head *rcu_head) * css_put(). dput() requires process context which we don't have. */ INIT_WORK(&css->destroy_work, css_free_work_fn); - schedule_work(&css->destroy_work); + queue_work(cgroup_destroy_wq, &css->destroy_work); } static void css_release(struct percpu_ref *ref) @@ -4539,7 +4550,7 @@ static void css_killed_ref_fn(struct percpu_ref *ref) container_of(ref, struct cgroup_subsys_state, refcnt); INIT_WORK(&css->destroy_work, css_killed_work_fn); - schedule_work(&css->destroy_work); + queue_work(cgroup_destroy_wq, &css->destroy_work); } /** @@ -5063,6 +5074,22 @@ out: return err; } +static int __init cgroup_wq_init(void) +{ + /* + * There isn't much point in executing destruction path in + * parallel. Good chunk is serialized with cgroup_mutex anyway. + * Use 1 for @max_active. + * + * We would prefer to do this in cgroup_init() above, but that + * is called before init_workqueues(): so leave this until after. + */ + cgroup_destroy_wq = alloc_workqueue("cgroup_destroy", 0, 1); + BUG_ON(!cgroup_destroy_wq); + return 0; +} +core_initcall(cgroup_wq_init); + /* * proc_cgroup_show() * - Print task's cgroup paths into seq_file, one line for each hierarchy diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 6bf981e..4772034 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -1033,8 +1033,10 @@ static void cpuset_change_task_nodemask(struct task_struct *tsk, need_loop = task_has_mempolicy(tsk) || !nodes_intersects(*newmems, tsk->mems_allowed); - if (need_loop) + if (need_loop) { + local_irq_disable(); write_seqcount_begin(&tsk->mems_allowed_seq); + } nodes_or(tsk->mems_allowed, tsk->mems_allowed, *newmems); mpol_rebind_task(tsk, newmems, MPOL_REBIND_STEP1); @@ -1042,8 +1044,10 @@ static void cpuset_change_task_nodemask(struct task_struct *tsk, mpol_rebind_task(tsk, newmems, MPOL_REBIND_STEP2); tsk->mems_allowed = *newmems; - if (need_loop) + if (need_loop) { write_seqcount_end(&tsk->mems_allowed_seq); + local_irq_enable(); + } task_unlock(tsk); } diff --git a/kernel/events/core.c b/kernel/events/core.c index d724e77..72348dc 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -5680,11 +5680,6 @@ static void swevent_hlist_put(struct perf_event *event) { int cpu; - if (event->cpu != -1) { - swevent_hlist_put_cpu(event, event->cpu); - return; - } - for_each_possible_cpu(cpu) swevent_hlist_put_cpu(event, cpu); } @@ -5718,9 +5713,6 @@ static int swevent_hlist_get(struct perf_event *event) int err; int cpu, failed_cpu; - if (event->cpu != -1) - return swevent_hlist_get_cpu(event, event->cpu); - get_online_cpus(); for_each_possible_cpu(cpu) { err = swevent_hlist_get_cpu(event, cpu); diff --git a/kernel/extable.c b/kernel/extable.c index 832cb28..763faf0 100644 --- a/kernel/extable.c +++ b/kernel/extable.c @@ -61,7 +61,7 @@ const struct exception_table_entry *search_exception_tables(unsigned long addr) static inline int init_kernel_text(unsigned long addr) { if (addr >= (unsigned long)_sinittext && - addr <= (unsigned long)_einittext) + addr < (unsigned long)_einittext) return 1; return 0; } @@ -69,7 +69,7 @@ static inline int init_kernel_text(unsigned long addr) int core_kernel_text(unsigned long addr) { if (addr >= (unsigned long)_stext && - addr <= (unsigned long)_etext) + addr < (unsigned long)_etext) return 1; if (system_state == SYSTEM_BOOTING && diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c index cb228bf..abcd6ca 100644 --- a/kernel/irq/pm.c +++ b/kernel/irq/pm.c @@ -50,7 +50,7 @@ static void resume_irqs(bool want_early) bool is_early = desc->action && desc->action->flags & IRQF_EARLY_RESUME; - if (is_early != want_early) + if (!is_early && want_early) continue; raw_spin_lock_irqsave(&desc->lock, flags); diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index 6abb03d..08a7652 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -1632,7 +1632,7 @@ module_param(rcu_idle_gp_delay, int, 0644); static int rcu_idle_lazy_gp_delay = RCU_IDLE_LAZY_GP_DELAY; module_param(rcu_idle_lazy_gp_delay, int, 0644); -extern int tick_nohz_enabled; +extern int tick_nohz_active; /* * Try to advance callbacks for all flavors of RCU on the current CPU, but @@ -1729,7 +1729,7 @@ static void rcu_prepare_for_idle(int cpu) int tne; /* Handle nohz enablement switches conservatively. */ - tne = ACCESS_ONCE(tick_nohz_enabled); + tne = ACCESS_ONCE(tick_nohz_active); if (tne != rdtp->tick_nohz_enabled_snap) { if (rcu_cpu_has_callbacks(cpu, NULL)) invoke_rcu_core(); /* force nohz to see update. */ diff --git a/kernel/sched/core.c b/kernel/sched/core.c index c180860..e85cda2 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2660,6 +2660,7 @@ asmlinkage void __sched notrace preempt_schedule(void) } while (need_resched()); } EXPORT_SYMBOL(preempt_schedule); +#endif /* CONFIG_PREEMPT */ /* * this is the entry point to schedule() from kernel preemption @@ -2693,8 +2694,6 @@ asmlinkage void __sched preempt_schedule_irq(void) exception_exit(prev_state); } -#endif /* CONFIG_PREEMPT */ - int default_wake_function(wait_queue_t *curr, unsigned mode, int wake_flags, void *key) { @@ -4762,7 +4761,7 @@ static void rq_attach_root(struct rq *rq, struct root_domain *rd) cpumask_clear_cpu(rq->cpu, old_rd->span); /* - * If we dont want to free the old_rt yet then + * If we dont want to free the old_rd yet then * set old_rd to NULL to skip the freeing later * in this function: */ @@ -4910,8 +4909,9 @@ static void update_top_cache_domain(int cpu) if (sd) { id = cpumask_first(sched_domain_span(sd)); size = cpumask_weight(sched_domain_span(sd)); - rcu_assign_pointer(per_cpu(sd_busy, cpu), sd->parent); + sd = sd->parent; /* sd_busy */ } + rcu_assign_pointer(per_cpu(sd_busy, cpu), sd); rcu_assign_pointer(per_cpu(sd_llc, cpu), sd); per_cpu(sd_llc_size, cpu) = size; diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index e8b652e..fd773ad 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5379,10 +5379,31 @@ void update_group_power(struct sched_domain *sd, int cpu) */ for_each_cpu(cpu, sched_group_cpus(sdg)) { - struct sched_group *sg = cpu_rq(cpu)->sd->groups; + struct sched_group_power *sgp; + struct rq *rq = cpu_rq(cpu); - power_orig += sg->sgp->power_orig; - power += sg->sgp->power; + /* + * build_sched_domains() -> init_sched_groups_power() + * gets here before we've attached the domains to the + * runqueues. + * + * Use power_of(), which is set irrespective of domains + * in update_cpu_power(). + * + * This avoids power/power_orig from being 0 and + * causing divide-by-zero issues on boot. + * + * Runtime updates will correct power_orig. + */ + if (unlikely(!rq->sd)) { + power_orig += power_of(cpu); + power += power_of(cpu); + continue; + } + + sgp = rq->sd->groups->sgp; + power_orig += sgp->power_orig; + power += sgp->power; } } else { /* diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c index 64522ec..162b03a 100644 --- a/kernel/time/tick-common.c +++ b/kernel/time/tick-common.c @@ -33,6 +33,21 @@ DEFINE_PER_CPU(struct tick_device, tick_cpu_device); */ ktime_t tick_next_period; ktime_t tick_period; + +/* + * tick_do_timer_cpu is a timer core internal variable which holds the CPU NR + * which is responsible for calling do_timer(), i.e. the timekeeping stuff. This + * variable has two functions: + * + * 1) Prevent a thundering herd issue of a gazillion of CPUs trying to grab the + * timekeeping lock all at once. Only the CPU which is assigned to do the + * update is handling it. + * + * 2) Hand off the duty in the NOHZ idle case by setting the value to + * TICK_DO_TIMER_NONE, i.e. a non existing CPU. So the next cpu which looks + * at it will take over and keep the time keeping alive. The handover + * procedure also covers cpu hotplug. + */ int tick_do_timer_cpu __read_mostly = TICK_DO_TIMER_BOOT; /* diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 3612fc7..ea20f7d 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -361,8 +361,8 @@ void __init tick_nohz_init(void) /* * NO HZ enabled ? */ -int tick_nohz_enabled __read_mostly = 1; - +static int tick_nohz_enabled __read_mostly = 1; +int tick_nohz_active __read_mostly; /* * Enable / Disable tickless mode */ @@ -465,7 +465,7 @@ u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time) struct tick_sched *ts = &per_cpu(tick_cpu_sched, cpu); ktime_t now, idle; - if (!tick_nohz_enabled) + if (!tick_nohz_active) return -1; now = ktime_get(); @@ -506,7 +506,7 @@ u64 get_cpu_iowait_time_us(int cpu, u64 *last_update_time) struct tick_sched *ts = &per_cpu(tick_cpu_sched, cpu); ktime_t now, iowait; - if (!tick_nohz_enabled) + if (!tick_nohz_active) return -1; now = ktime_get(); @@ -711,8 +711,10 @@ static bool can_stop_idle_tick(int cpu, struct tick_sched *ts) return false; } - if (unlikely(ts->nohz_mode == NOHZ_MODE_INACTIVE)) + if (unlikely(ts->nohz_mode == NOHZ_MODE_INACTIVE)) { + ts->sleep_length = (ktime_t) { .tv64 = NSEC_PER_SEC/HZ }; return false; + } if (need_resched()) return false; @@ -799,11 +801,6 @@ void tick_nohz_idle_enter(void) local_irq_disable(); ts = &__get_cpu_var(tick_cpu_sched); - /* - * set ts->inidle unconditionally. even if the system did not - * switch to nohz mode the cpu frequency governers rely on the - * update of the idle time accounting in tick_nohz_start_idle(). - */ ts->inidle = 1; __tick_nohz_idle_enter(ts); @@ -973,7 +970,7 @@ static void tick_nohz_switch_to_nohz(void) struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched); ktime_t next; - if (!tick_nohz_enabled) + if (!tick_nohz_active) return; local_irq_disable(); @@ -981,7 +978,7 @@ static void tick_nohz_switch_to_nohz(void) local_irq_enable(); return; } - + tick_nohz_active = 1; ts->nohz_mode = NOHZ_MODE_LOWRES; /* @@ -1139,8 +1136,10 @@ void tick_setup_sched_timer(void) } #ifdef CONFIG_NO_HZ_COMMON - if (tick_nohz_enabled) + if (tick_nohz_enabled) { ts->nohz_mode = NOHZ_MODE_HIGHRES; + tick_nohz_active = 1; + } #endif } #endif /* HIGH_RES_TIMERS */ diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 3abf534..87b4f00 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -1347,7 +1347,7 @@ static inline void old_vsyscall_fixup(struct timekeeper *tk) tk->xtime_nsec -= remainder; tk->xtime_nsec += 1ULL << tk->shift; tk->ntp_error += remainder << tk->ntp_error_shift; - + tk->ntp_error -= (1ULL << tk->shift) << tk->ntp_error_shift; } #else #define old_vsyscall_fixup(tk) diff --git a/kernel/timer.c b/kernel/timer.c index 6582b82..accfd24 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -1518,9 +1518,8 @@ static int init_timers_cpu(int cpu) /* * The APs use this path later in boot */ - base = kmalloc_node(sizeof(*base), - GFP_KERNEL | __GFP_ZERO, - cpu_to_node(cpu)); + base = kzalloc_node(sizeof(*base), GFP_KERNEL, + cpu_to_node(cpu)); if (!base) return -ENOMEM; diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 22fa556..0e9f9ea 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -367,9 +367,6 @@ static int remove_ftrace_list_ops(struct ftrace_ops **list, static int __register_ftrace_function(struct ftrace_ops *ops) { - if (unlikely(ftrace_disabled)) - return -ENODEV; - if (FTRACE_WARN_ON(ops == &global_ops)) return -EINVAL; @@ -428,9 +425,6 @@ static int __unregister_ftrace_function(struct ftrace_ops *ops) { int ret; - if (ftrace_disabled) - return -ENODEV; - if (WARN_ON(!(ops->flags & FTRACE_OPS_FL_ENABLED))) return -EBUSY; @@ -2088,10 +2082,15 @@ static void ftrace_startup_enable(int command) static int ftrace_startup(struct ftrace_ops *ops, int command) { bool hash_enable = true; + int ret; if (unlikely(ftrace_disabled)) return -ENODEV; + ret = __register_ftrace_function(ops); + if (ret) + return ret; + ftrace_start_up++; command |= FTRACE_UPDATE_CALLS; @@ -2113,12 +2112,17 @@ static int ftrace_startup(struct ftrace_ops *ops, int command) return 0; } -static void ftrace_shutdown(struct ftrace_ops *ops, int command) +static int ftrace_shutdown(struct ftrace_ops *ops, int command) { bool hash_disable = true; + int ret; if (unlikely(ftrace_disabled)) - return; + return -ENODEV; + + ret = __unregister_ftrace_function(ops); + if (ret) + return ret; ftrace_start_up--; /* @@ -2153,9 +2157,10 @@ static void ftrace_shutdown(struct ftrace_ops *ops, int command) } if (!command || !ftrace_enabled) - return; + return 0; ftrace_run_update_code(command); + return 0; } static void ftrace_startup_sysctl(void) @@ -3060,16 +3065,13 @@ static void __enable_ftrace_function_probe(void) if (i == FTRACE_FUNC_HASHSIZE) return; - ret = __register_ftrace_function(&trace_probe_ops); - if (!ret) - ret = ftrace_startup(&trace_probe_ops, 0); + ret = ftrace_startup(&trace_probe_ops, 0); ftrace_probe_registered = 1; } static void __disable_ftrace_function_probe(void) { - int ret; int i; if (!ftrace_probe_registered) @@ -3082,9 +3084,7 @@ static void __disable_ftrace_function_probe(void) } /* no more funcs left */ - ret = __unregister_ftrace_function(&trace_probe_ops); - if (!ret) - ftrace_shutdown(&trace_probe_ops, 0); + ftrace_shutdown(&trace_probe_ops, 0); ftrace_probe_registered = 0; } @@ -4366,12 +4366,15 @@ core_initcall(ftrace_nodyn_init); static inline int ftrace_init_dyn_debugfs(struct dentry *d_tracer) { return 0; } static inline void ftrace_startup_enable(int command) { } /* Keep as macros so we do not need to define the commands */ -# define ftrace_startup(ops, command) \ - ({ \ - (ops)->flags |= FTRACE_OPS_FL_ENABLED; \ - 0; \ +# define ftrace_startup(ops, command) \ + ({ \ + int ___ret = __register_ftrace_function(ops); \ + if (!___ret) \ + (ops)->flags |= FTRACE_OPS_FL_ENABLED; \ + ___ret; \ }) -# define ftrace_shutdown(ops, command) do { } while (0) +# define ftrace_shutdown(ops, command) __unregister_ftrace_function(ops) + # define ftrace_startup_sysctl() do { } while (0) # define ftrace_shutdown_sysctl() do { } while (0) @@ -4780,9 +4783,7 @@ int register_ftrace_function(struct ftrace_ops *ops) mutex_lock(&ftrace_lock); - ret = __register_ftrace_function(ops); - if (!ret) - ret = ftrace_startup(ops, 0); + ret = ftrace_startup(ops, 0); mutex_unlock(&ftrace_lock); @@ -4801,9 +4802,7 @@ int unregister_ftrace_function(struct ftrace_ops *ops) int ret; mutex_lock(&ftrace_lock); - ret = __unregister_ftrace_function(ops); - if (!ret) - ftrace_shutdown(ops, 0); + ret = ftrace_shutdown(ops, 0); mutex_unlock(&ftrace_lock); return ret; @@ -4997,6 +4996,13 @@ ftrace_suspend_notifier_call(struct notifier_block *bl, unsigned long state, return NOTIFY_DONE; } +/* Just a place holder for function graph */ +static struct ftrace_ops fgraph_ops __read_mostly = { + .func = ftrace_stub, + .flags = FTRACE_OPS_FL_STUB | FTRACE_OPS_FL_GLOBAL | + FTRACE_OPS_FL_RECURSION_SAFE, +}; + int register_ftrace_graph(trace_func_graph_ret_t retfunc, trace_func_graph_ent_t entryfunc) { @@ -5023,7 +5029,7 @@ int register_ftrace_graph(trace_func_graph_ret_t retfunc, ftrace_graph_return = retfunc; ftrace_graph_entry = entryfunc; - ret = ftrace_startup(&global_ops, FTRACE_START_FUNC_RET); + ret = ftrace_startup(&fgraph_ops, FTRACE_START_FUNC_RET); out: mutex_unlock(&ftrace_lock); @@ -5040,7 +5046,7 @@ void unregister_ftrace_graph(void) ftrace_graph_active--; ftrace_graph_return = (trace_func_graph_ret_t)ftrace_stub; ftrace_graph_entry = ftrace_graph_entry_stub; - ftrace_shutdown(&global_ops, FTRACE_STOP_FUNC_RET); + ftrace_shutdown(&fgraph_ops, FTRACE_STOP_FUNC_RET); unregister_pm_notifier(&ftrace_suspend_notifier); unregister_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL); diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c index 78e27e3..e854f42 100644 --- a/kernel/trace/trace_event_perf.c +++ b/kernel/trace/trace_event_perf.c @@ -24,6 +24,12 @@ static int total_ref_count; static int perf_trace_event_perm(struct ftrace_event_call *tp_event, struct perf_event *p_event) { + if (tp_event->perf_perm) { + int ret = tp_event->perf_perm(tp_event, p_event); + if (ret) + return ret; + } + /* The ftrace function trace is allowed only for root. */ if (ftrace_event_is_function(tp_event) && perf_paranoid_tracepoint_raw() && !capable(CAP_SYS_ADMIN)) @@ -173,7 +179,7 @@ static int perf_trace_event_init(struct ftrace_event_call *tp_event, int perf_trace_init(struct perf_event *p_event) { struct ftrace_event_call *tp_event; - int event_id = p_event->attr.config; + u64 event_id = p_event->attr.config; int ret = -EINVAL; mutex_lock(&event_mutex); diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 987293d..c66912be 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -305,6 +305,9 @@ static DEFINE_HASHTABLE(unbound_pool_hash, UNBOUND_POOL_HASH_ORDER); /* I: attributes used when instantiating standard unbound pools on demand */ static struct workqueue_attrs *unbound_std_wq_attrs[NR_STD_WORKER_POOLS]; +/* I: attributes used when instantiating ordered pools on demand */ +static struct workqueue_attrs *ordered_wq_attrs[NR_STD_WORKER_POOLS]; + struct workqueue_struct *system_wq __read_mostly; EXPORT_SYMBOL(system_wq); struct workqueue_struct *system_highpri_wq __read_mostly; @@ -518,14 +521,21 @@ static inline void debug_work_activate(struct work_struct *work) { } static inline void debug_work_deactivate(struct work_struct *work) { } #endif -/* allocate ID and assign it to @pool */ +/** + * worker_pool_assign_id - allocate ID and assing it to @pool + * @pool: the pool pointer of interest + * + * Returns 0 if ID in [0, WORK_OFFQ_POOL_NONE) is allocated and assigned + * successfully, -errno on failure. + */ static int worker_pool_assign_id(struct worker_pool *pool) { int ret; lockdep_assert_held(&wq_pool_mutex); - ret = idr_alloc(&worker_pool_idr, pool, 0, 0, GFP_KERNEL); + ret = idr_alloc(&worker_pool_idr, pool, 0, WORK_OFFQ_POOL_NONE, + GFP_KERNEL); if (ret >= 0) { pool->id = ret; return 0; @@ -1320,7 +1330,7 @@ static void __queue_work(int cpu, struct workqueue_struct *wq, debug_work_activate(work); - /* if dying, only works from the same workqueue are allowed */ + /* if draining, only works from the same workqueue are allowed */ if (unlikely(wq->flags & __WQ_DRAINING) && WARN_ON_ONCE(!is_chained_work(wq))) return; @@ -1736,16 +1746,17 @@ static struct worker *create_worker(struct worker_pool *pool) if (IS_ERR(worker->task)) goto fail; + set_user_nice(worker->task, pool->attrs->nice); + + /* prevent userland from meddling with cpumask of workqueue workers */ + worker->task->flags |= PF_NO_SETAFFINITY; + /* * set_cpus_allowed_ptr() will fail if the cpumask doesn't have any * online CPUs. It'll be re-applied when any of the CPUs come up. */ - set_user_nice(worker->task, pool->attrs->nice); set_cpus_allowed_ptr(worker->task, pool->attrs->cpumask); - /* prevent userland from meddling with cpumask of workqueue workers */ - worker->task->flags |= PF_NO_SETAFFINITY; - /* * The caller is responsible for ensuring %POOL_DISASSOCIATED * remains stable across this function. See the comments above the @@ -4106,7 +4117,7 @@ out_unlock: static int alloc_and_link_pwqs(struct workqueue_struct *wq) { bool highpri = wq->flags & WQ_HIGHPRI; - int cpu; + int cpu, ret; if (!(wq->flags & WQ_UNBOUND)) { wq->cpu_pwqs = alloc_percpu(struct pool_workqueue); @@ -4126,6 +4137,13 @@ static int alloc_and_link_pwqs(struct workqueue_struct *wq) mutex_unlock(&wq->mutex); } return 0; + } else if (wq->flags & __WQ_ORDERED) { + ret = apply_workqueue_attrs(wq, ordered_wq_attrs[highpri]); + /* there should only be single pwq for ordering guarantee */ + WARN(!ret && (wq->pwqs.next != &wq->dfl_pwq->pwqs_node || + wq->pwqs.prev != &wq->dfl_pwq->pwqs_node), + "ordering guarantee broken for workqueue %s\n", wq->name); + return ret; } else { return apply_workqueue_attrs(wq, unbound_std_wq_attrs[highpri]); } @@ -5009,10 +5027,6 @@ static int __init init_workqueues(void) int std_nice[NR_STD_WORKER_POOLS] = { 0, HIGHPRI_NICE_LEVEL }; int i, cpu; - /* make sure we have enough bits for OFFQ pool ID */ - BUILD_BUG_ON((1LU << (BITS_PER_LONG - WORK_OFFQ_POOL_SHIFT)) < - WORK_CPU_END * NR_STD_WORKER_POOLS); - WARN_ON(__alignof__(struct pool_workqueue) < __alignof__(long long)); pwq_cache = KMEM_CACHE(pool_workqueue, SLAB_PANIC); @@ -5051,13 +5065,23 @@ static int __init init_workqueues(void) } } - /* create default unbound wq attrs */ + /* create default unbound and ordered wq attrs */ for (i = 0; i < NR_STD_WORKER_POOLS; i++) { struct workqueue_attrs *attrs; BUG_ON(!(attrs = alloc_workqueue_attrs(GFP_KERNEL))); attrs->nice = std_nice[i]; unbound_std_wq_attrs[i] = attrs; + + /* + * An ordered wq should have only one pwq as ordering is + * guaranteed by max_active which is enforced by pwqs. + * Turn off NUMA so that dfl_pwq is used for all nodes. + */ + BUG_ON(!(attrs = alloc_workqueue_attrs(GFP_KERNEL))); + attrs->nice = std_nice[i]; + attrs->no_numa = true; + ordered_wq_attrs[i] = attrs; } system_wq = alloc_workqueue("events", 0, 0); diff --git a/lib/lockref.c b/lib/lockref.c index d2b123f..f07a40d 100644 --- a/lib/lockref.c +++ b/lib/lockref.c @@ -1,5 +1,6 @@ #include <linux/export.h> #include <linux/lockref.h> +#include <linux/mutex.h> #if USE_CMPXCHG_LOCKREF @@ -12,14 +13,6 @@ #endif /* - * Allow architectures to override the default cpu_relax() within CMPXCHG_LOOP. - * This is useful for architectures with an expensive cpu_relax(). - */ -#ifndef arch_mutex_cpu_relax -# define arch_mutex_cpu_relax() cpu_relax() -#endif - -/* * Note that the "cmpxchg()" reloads the "old" value for the * failure case. */ diff --git a/net/compat.c b/net/compat.c index 618c6a8..dd32e34 100644 --- a/net/compat.c +++ b/net/compat.c @@ -72,7 +72,7 @@ int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg) __get_user(kmsg->msg_flags, &umsg->msg_flags)) return -EFAULT; if (kmsg->msg_namelen > sizeof(struct sockaddr_storage)) - return -EINVAL; + kmsg->msg_namelen = sizeof(struct sockaddr_storage); kmsg->msg_name = compat_ptr(tmp1); kmsg->msg_iov = compat_ptr(tmp2); kmsg->msg_control = compat_ptr(tmp3); diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 261357a..a797fff 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -2527,6 +2527,8 @@ static int process_ipsec(struct pktgen_dev *pkt_dev, if (x) { int ret; __u8 *eth; + struct iphdr *iph; + nhead = x->props.header_len - skb_headroom(skb); if (nhead > 0) { ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC); @@ -2548,6 +2550,11 @@ static int process_ipsec(struct pktgen_dev *pkt_dev, eth = (__u8 *) skb_push(skb, ETH_HLEN); memcpy(eth, pkt_dev->hh, 12); *(u16 *) ð[12] = protocol; + + /* Update IPv4 header len as well as checksum value */ + iph = ip_hdr(skb); + iph->tot_len = htons(skb->len - ETH_HLEN); + ip_send_check(iph); } } return 1; diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c index 003f5bb..4bdab15 100644 --- a/net/hsr/hsr_framereg.c +++ b/net/hsr/hsr_framereg.c @@ -288,7 +288,8 @@ void hsr_addr_subst_dest(struct hsr_priv *hsr_priv, struct ethhdr *ethhdr, static bool seq_nr_after(u16 a, u16 b) { /* Remove inconsistency where - * seq_nr_after(a, b) == seq_nr_before(a, b) */ + * seq_nr_after(a, b) == seq_nr_before(a, b) + */ if ((int) b - a == 32768) return false; diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c index 5325af8..01a5261 100644 --- a/net/hsr/hsr_netlink.c +++ b/net/hsr/hsr_netlink.c @@ -23,6 +23,8 @@ static const struct nla_policy hsr_policy[IFLA_HSR_MAX + 1] = { [IFLA_HSR_SLAVE1] = { .type = NLA_U32 }, [IFLA_HSR_SLAVE2] = { .type = NLA_U32 }, [IFLA_HSR_MULTICAST_SPEC] = { .type = NLA_U8 }, + [IFLA_HSR_SUPERVISION_ADDR] = { .type = NLA_BINARY, .len = ETH_ALEN }, + [IFLA_HSR_SEQ_NR] = { .type = NLA_U16 }, }; @@ -59,6 +61,31 @@ static int hsr_newlink(struct net *src_net, struct net_device *dev, return hsr_dev_finalize(dev, link, multicast_spec); } +static int hsr_fill_info(struct sk_buff *skb, const struct net_device *dev) +{ + struct hsr_priv *hsr_priv; + + hsr_priv = netdev_priv(dev); + + if (hsr_priv->slave[0]) + if (nla_put_u32(skb, IFLA_HSR_SLAVE1, hsr_priv->slave[0]->ifindex)) + goto nla_put_failure; + + if (hsr_priv->slave[1]) + if (nla_put_u32(skb, IFLA_HSR_SLAVE2, hsr_priv->slave[1]->ifindex)) + goto nla_put_failure; + + if (nla_put(skb, IFLA_HSR_SUPERVISION_ADDR, ETH_ALEN, + hsr_priv->sup_multicast_addr) || + nla_put_u16(skb, IFLA_HSR_SEQ_NR, hsr_priv->sequence_nr)) + goto nla_put_failure; + + return 0; + +nla_put_failure: + return -EMSGSIZE; +} + static struct rtnl_link_ops hsr_link_ops __read_mostly = { .kind = "hsr", .maxtype = IFLA_HSR_MAX, @@ -66,6 +93,7 @@ static struct rtnl_link_ops hsr_link_ops __read_mostly = { .priv_size = sizeof(struct hsr_priv), .setup = hsr_dev_setup, .newlink = hsr_newlink, + .fill_info = hsr_fill_info, }; diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index 3f85826..ddf32a6 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -386,7 +386,7 @@ void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 port, u32 inf /* * Handle MSG_ERRQUEUE */ -int ip_recv_error(struct sock *sk, struct msghdr *msg, int len) +int ip_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len) { struct sock_exterr_skb *serr; struct sk_buff *skb, *skb2; @@ -423,6 +423,7 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len) serr->addr_offset); sin->sin_port = serr->port; memset(&sin->sin_zero, 0, sizeof(sin->sin_zero)); + *addr_len = sizeof(*sin); } memcpy(&errhdr.ee, &serr->ee, sizeof(struct sock_extended_err)); diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c index 876c6ca..242e7f4 100644 --- a/net/ipv4/ping.c +++ b/net/ipv4/ping.c @@ -772,7 +772,7 @@ int ping_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, err = PTR_ERR(rt); rt = NULL; if (err == -ENETUNREACH) - IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES); + IP_INC_STATS(net, IPSTATS_MIB_OUTNOROUTES); goto out; } @@ -841,10 +841,11 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, if (flags & MSG_ERRQUEUE) { if (family == AF_INET) { - return ip_recv_error(sk, msg, len); + return ip_recv_error(sk, msg, len, addr_len); #if IS_ENABLED(CONFIG_IPV6) } else if (family == AF_INET6) { - return pingv6_ops.ipv6_recv_error(sk, msg, len); + return pingv6_ops.ipv6_recv_error(sk, msg, len, + addr_len); #endif } } diff --git a/net/ipv4/protocol.c b/net/ipv4/protocol.c index ce84846..46d6a1c 100644 --- a/net/ipv4/protocol.c +++ b/net/ipv4/protocol.c @@ -31,10 +31,6 @@ const struct net_protocol __rcu *inet_protos[MAX_INET_PROTOS] __read_mostly; const struct net_offload __rcu *inet_offloads[MAX_INET_PROTOS] __read_mostly; -/* - * Add a protocol handler to the hash tables - */ - int inet_add_protocol(const struct net_protocol *prot, unsigned char protocol) { if (!prot->netns_ok) { @@ -55,10 +51,6 @@ int inet_add_offload(const struct net_offload *prot, unsigned char protocol) } EXPORT_SYMBOL(inet_add_offload); -/* - * Remove a protocol from the hash tables. - */ - int inet_del_protocol(const struct net_protocol *prot, unsigned char protocol) { int ret; diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 5cb8ddb..23c3e5b 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -697,7 +697,7 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, goto out; if (flags & MSG_ERRQUEUE) { - err = ip_recv_error(sk, msg, len); + err = ip_recv_error(sk, msg, len, addr_len); goto out; } diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 59a6f8b..0672139 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -177,7 +177,7 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) if (IS_ERR(rt)) { err = PTR_ERR(rt); if (err == -ENETUNREACH) - IP_INC_STATS_BH(sock_net(sk), IPSTATS_MIB_OUTNOROUTES); + IP_INC_STATS(sock_net(sk), IPSTATS_MIB_OUTNOROUTES); return err; } diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c index 03e9154..269a89e 100644 --- a/net/ipv4/tcp_memcontrol.c +++ b/net/ipv4/tcp_memcontrol.c @@ -60,7 +60,6 @@ EXPORT_SYMBOL(tcp_destroy_cgroup); static int tcp_update_limit(struct mem_cgroup *memcg, u64 val) { struct cg_proto *cg_proto; - u64 old_lim; int i; int ret; @@ -71,7 +70,6 @@ static int tcp_update_limit(struct mem_cgroup *memcg, u64 val) if (val > RES_COUNTER_MAX) val = RES_COUNTER_MAX; - old_lim = res_counter_read_u64(&cg_proto->memory_allocated, RES_LIMIT); ret = res_counter_set_limit(&cg_proto->memory_allocated, val); if (ret) return ret; diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c index a2b68a1..0560635 100644 --- a/net/ipv4/tcp_offload.c +++ b/net/ipv4/tcp_offload.c @@ -274,33 +274,32 @@ static struct sk_buff **tcp4_gro_receive(struct sk_buff **head, struct sk_buff * { const struct iphdr *iph = skb_gro_network_header(skb); __wsum wsum; - __sum16 sum; + + /* Don't bother verifying checksum if we're going to flush anyway. */ + if (NAPI_GRO_CB(skb)->flush) + goto skip_csum; + + wsum = skb->csum; switch (skb->ip_summed) { + case CHECKSUM_NONE: + wsum = skb_checksum(skb, skb_gro_offset(skb), skb_gro_len(skb), + 0); + + /* fall through */ + case CHECKSUM_COMPLETE: if (!tcp_v4_check(skb_gro_len(skb), iph->saddr, iph->daddr, - skb->csum)) { + wsum)) { skb->ip_summed = CHECKSUM_UNNECESSARY; break; } -flush: + NAPI_GRO_CB(skb)->flush = 1; return NULL; - - case CHECKSUM_NONE: - wsum = csum_tcpudp_nofold(iph->saddr, iph->daddr, - skb_gro_len(skb), IPPROTO_TCP, 0); - sum = csum_fold(skb_checksum(skb, - skb_gro_offset(skb), - skb_gro_len(skb), - wsum)); - if (sum) - goto flush; - - skb->ip_summed = CHECKSUM_UNNECESSARY; - break; } +skip_csum: return tcp_gro_receive(head, skb); } diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 5944d7d..44f6a20 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -999,7 +999,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, err = PTR_ERR(rt); rt = NULL; if (err == -ENETUNREACH) - IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES); + IP_INC_STATS(net, IPSTATS_MIB_OUTNOROUTES); goto out; } @@ -1098,6 +1098,9 @@ int udp_sendpage(struct sock *sk, struct page *page, int offset, struct udp_sock *up = udp_sk(sk); int ret; + if (flags & MSG_SENDPAGE_NOTLAST) + flags |= MSG_MORE; + if (!up->pending) { struct msghdr msg = { .msg_flags = flags|MSG_MORE }; @@ -1236,7 +1239,7 @@ int udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, bool slow; if (flags & MSG_ERRQUEUE) - return ip_recv_error(sk, msg, len); + return ip_recv_error(sk, msg, len, addr_len); try_again: skb = __skb_recv_datagram(sk, flags | (noblock ? MSG_DONTWAIT : 0), diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index a454b0f..8dfe1f4 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -318,7 +318,7 @@ void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu) /* * Handle MSG_ERRQUEUE */ -int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len) +int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len) { struct ipv6_pinfo *np = inet6_sk(sk); struct sock_exterr_skb *serr; @@ -369,6 +369,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len) &sin->sin6_addr); sin->sin6_scope_id = 0; } + *addr_len = sizeof(*sin); } memcpy(&errhdr.ee, &serr->ee, sizeof(struct sock_extended_err)); @@ -377,6 +378,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len) if (serr->ee.ee_origin != SO_EE_ORIGIN_LOCAL) { sin->sin6_family = AF_INET6; sin->sin6_flowinfo = 0; + sin->sin6_port = 0; if (skb->protocol == htons(ETH_P_IPV6)) { sin->sin6_addr = ipv6_hdr(skb)->saddr; if (np->rxopt.all) @@ -423,7 +425,8 @@ EXPORT_SYMBOL_GPL(ipv6_recv_error); /* * Handle IPV6_RECVPATHMTU */ -int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len) +int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len, + int *addr_len) { struct ipv6_pinfo *np = inet6_sk(sk); struct sk_buff *skb; @@ -457,6 +460,7 @@ int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len) sin->sin6_port = 0; sin->sin6_scope_id = mtu_info.ip6m_addr.sin6_scope_id; sin->sin6_addr = mtu_info.ip6m_addr.sin6_addr; + *addr_len = sizeof(*sin); } put_cmsg(msg, SOL_IPV6, IPV6_PATHMTU, sizeof(mtu_info), &mtu_info); diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 59df872..4acdb63 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -116,8 +116,8 @@ static int ip6_finish_output2(struct sk_buff *skb) } rcu_read_unlock_bh(); - IP6_INC_STATS_BH(dev_net(dst->dev), - ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES); + IP6_INC_STATS(dev_net(dst->dev), + ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES); kfree_skb(skb); return -EINVAL; } diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c index 8815e31..a83243c 100644 --- a/net/ipv6/ping.c +++ b/net/ipv6/ping.c @@ -57,7 +57,8 @@ static struct inet_protosw pingv6_protosw = { /* Compatibility glue so we can support IPv6 when it's compiled as a module */ -static int dummy_ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len) +static int dummy_ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, + int *addr_len) { return -EAFNOSUPPORT; } diff --git a/net/ipv6/protocol.c b/net/ipv6/protocol.c index 22d1bd4..e048cf1 100644 --- a/net/ipv6/protocol.c +++ b/net/ipv6/protocol.c @@ -36,10 +36,6 @@ int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol } EXPORT_SYMBOL(inet6_add_protocol); -/* - * Remove a protocol from the hash tables. - */ - int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char protocol) { int ret; diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index e24ff1d..7fb4e14 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -466,10 +466,10 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk, return -EOPNOTSUPP; if (flags & MSG_ERRQUEUE) - return ipv6_recv_error(sk, msg, len); + return ipv6_recv_error(sk, msg, len, addr_len); if (np->rxpmtu && np->rxopt.bits.rxpmtu) - return ipv6_recv_rxpmtu(sk, msg, len); + return ipv6_recv_rxpmtu(sk, msg, len, addr_len); skb = skb_recv_datagram(sk, flags, noblock, &err); if (!skb) diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index 1b4a4a95..366fbba 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -478,14 +478,44 @@ static void ipip6_tunnel_uninit(struct net_device *dev) dev_put(dev); } +/* Generate icmpv6 with type/code ICMPV6_DEST_UNREACH/ICMPV6_ADDR_UNREACH + * if sufficient data bytes are available + */ +static int ipip6_err_gen_icmpv6_unreach(struct sk_buff *skb) +{ + const struct iphdr *iph = (const struct iphdr *) skb->data; + struct rt6_info *rt; + struct sk_buff *skb2; + + if (!pskb_may_pull(skb, iph->ihl * 4 + sizeof(struct ipv6hdr) + 8)) + return 1; + + skb2 = skb_clone(skb, GFP_ATOMIC); + + if (!skb2) + return 1; + + skb_dst_drop(skb2); + skb_pull(skb2, iph->ihl * 4); + skb_reset_network_header(skb2); + + rt = rt6_lookup(dev_net(skb->dev), &ipv6_hdr(skb2)->saddr, NULL, 0, 0); + + if (rt && rt->dst.dev) + skb2->dev = rt->dst.dev; + + icmpv6_send(skb2, ICMPV6_DEST_UNREACH, ICMPV6_ADDR_UNREACH, 0); + + if (rt) + ip6_rt_put(rt); + + kfree_skb(skb2); + + return 0; +} static int ipip6_err(struct sk_buff *skb, u32 info) { - -/* All the routers (except for Linux) return only - 8 bytes of packet payload. It means, that precise relaying of - ICMP in the real Internet is absolutely infeasible. - */ const struct iphdr *iph = (const struct iphdr *)skb->data; const int type = icmp_hdr(skb)->type; const int code = icmp_hdr(skb)->code; @@ -500,7 +530,6 @@ static int ipip6_err(struct sk_buff *skb, u32 info) case ICMP_DEST_UNREACH: switch (code) { case ICMP_SR_FAILED: - case ICMP_PORT_UNREACH: /* Impossible event. */ return 0; default: @@ -545,6 +574,9 @@ static int ipip6_err(struct sk_buff *skb, u32 info) goto out; err = 0; + if (!ipip6_err_gen_icmpv6_unreach(skb)) + goto out; + if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED) goto out; @@ -919,7 +951,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb, if (!new_skb) { ip_rt_put(rt); dev->stats.tx_dropped++; - dev_kfree_skb(skb); + kfree_skb(skb); return NETDEV_TX_OK; } if (skb->sk) @@ -945,7 +977,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb, tx_error_icmp: dst_link_failure(skb); tx_error: - dev_kfree_skb(skb); + kfree_skb(skb); out: dev->stats.tx_errors++; return NETDEV_TX_OK; @@ -985,7 +1017,7 @@ static netdev_tx_t sit_tunnel_xmit(struct sk_buff *skb, tx_err: dev->stats.tx_errors++; - dev_kfree_skb(skb); + kfree_skb(skb); return NETDEV_TX_OK; } diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c index c1097c7..6d18157 100644 --- a/net/ipv6/tcpv6_offload.c +++ b/net/ipv6/tcpv6_offload.c @@ -37,34 +37,32 @@ static struct sk_buff **tcp6_gro_receive(struct sk_buff **head, { const struct ipv6hdr *iph = skb_gro_network_header(skb); __wsum wsum; - __sum16 sum; + + /* Don't bother verifying checksum if we're going to flush anyway. */ + if (NAPI_GRO_CB(skb)->flush) + goto skip_csum; + + wsum = skb->csum; switch (skb->ip_summed) { + case CHECKSUM_NONE: + wsum = skb_checksum(skb, skb_gro_offset(skb), skb_gro_len(skb), + wsum); + + /* fall through */ + case CHECKSUM_COMPLETE: if (!tcp_v6_check(skb_gro_len(skb), &iph->saddr, &iph->daddr, - skb->csum)) { + wsum)) { skb->ip_summed = CHECKSUM_UNNECESSARY; break; } -flush: + NAPI_GRO_CB(skb)->flush = 1; return NULL; - - case CHECKSUM_NONE: - wsum = ~csum_unfold(csum_ipv6_magic(&iph->saddr, &iph->daddr, - skb_gro_len(skb), - IPPROTO_TCP, 0)); - sum = csum_fold(skb_checksum(skb, - skb_gro_offset(skb), - skb_gro_len(skb), - wsum)); - if (sum) - goto flush; - - skb->ip_summed = CHECKSUM_UNNECESSARY; - break; } +skip_csum: return tcp_gro_receive(head, skb); } diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 81eb8cf..bcd5699 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -393,10 +393,10 @@ int udpv6_recvmsg(struct kiocb *iocb, struct sock *sk, bool slow; if (flags & MSG_ERRQUEUE) - return ipv6_recv_error(sk, msg, len); + return ipv6_recv_error(sk, msg, len, addr_len); if (np->rxpmtu && np->rxopt.bits.rxpmtu) - return ipv6_recv_rxpmtu(sk, msg, len); + return ipv6_recv_rxpmtu(sk, msg, len, addr_len); try_again: skb = __skb_recv_datagram(sk, flags | (noblock ? MSG_DONTWAIT : 0), diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index cfd6530..d9b437e 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -665,7 +665,7 @@ static int l2tp_ip6_recvmsg(struct kiocb *iocb, struct sock *sk, *addr_len = sizeof(*lsa); if (flags & MSG_ERRQUEUE) - return ipv6_recv_error(sk, msg, len); + return ipv6_recv_error(sk, msg, len, addr_len); skb = skb_recv_datagram(sk, flags, noblock, &err); if (!skb) diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index 4518a57..713671a 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -74,9 +74,12 @@ static struct list_head family_ht[GENL_FAM_TAB_SIZE]; * Bit 17 is marked as already used since the VFS quota code * also abused this API and relied on family == group ID, we * cater to that by giving it a static family and group ID. + * Bit 18 is marked as already used since the PMCRAID driver + * did the same thing as the VFS quota code (maybe copied?) */ static unsigned long mc_group_start = 0x3 | BIT(GENL_ID_CTRL) | - BIT(GENL_ID_VFS_DQUOT); + BIT(GENL_ID_VFS_DQUOT) | + BIT(GENL_ID_PMCRAID); static unsigned long *mc_groups = &mc_group_start; static unsigned long mc_groups_longs = 1; @@ -139,6 +142,7 @@ static u16 genl_generate_id(void) for (i = 0; i <= GENL_MAX_ID - GENL_MIN_ID; i++) { if (id_gen_idx != GENL_ID_VFS_DQUOT && + id_gen_idx != GENL_ID_PMCRAID && !genl_family_find_byid(id_gen_idx)) return id_gen_idx; if (++id_gen_idx > GENL_MAX_ID) @@ -214,7 +218,7 @@ static int genl_validate_assign_mc_groups(struct genl_family *family) { int first_id; int n_groups = family->n_mcgrps; - int err, i; + int err = 0, i; bool groups_allocated = false; if (!n_groups) @@ -236,9 +240,12 @@ static int genl_validate_assign_mc_groups(struct genl_family *family) } else if (strcmp(family->name, "NET_DM") == 0) { first_id = 1; BUG_ON(n_groups != 1); - } else if (strcmp(family->name, "VFS_DQUOT") == 0) { + } else if (family->id == GENL_ID_VFS_DQUOT) { first_id = GENL_ID_VFS_DQUOT; BUG_ON(n_groups != 1); + } else if (family->id == GENL_ID_PMCRAID) { + first_id = GENL_ID_PMCRAID; + BUG_ON(n_groups != 1); } else { groups_allocated = true; err = genl_allocate_reserve_groups(n_groups, &first_id); diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index ac27c86..ba2548b 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -439,9 +439,9 @@ static void prb_shutdown_retire_blk_timer(struct packet_sock *po, pkc = tx_ring ? &po->tx_ring.prb_bdqc : &po->rx_ring.prb_bdqc; - spin_lock(&rb_queue->lock); + spin_lock_bh(&rb_queue->lock); pkc->delete_blk_timer = 1; - spin_unlock(&rb_queue->lock); + spin_unlock_bh(&rb_queue->lock); prb_del_retire_blk_timer(pkc); } diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c index 75c94e5..bccd52b 100644 --- a/net/sched/sch_netem.c +++ b/net/sched/sch_netem.c @@ -215,10 +215,10 @@ static bool loss_4state(struct netem_sched_data *q) if (rnd < clg->a4) { clg->state = 4; return true; - } else if (clg->a4 < rnd && rnd < clg->a1) { + } else if (clg->a4 < rnd && rnd < clg->a1 + clg->a4) { clg->state = 3; return true; - } else if (clg->a1 < rnd) + } else if (clg->a1 + clg->a4 < rnd) clg->state = 1; break; @@ -268,10 +268,11 @@ static bool loss_gilb_ell(struct netem_sched_data *q) clg->state = 2; if (net_random() < clg->a4) return true; + break; case 2: if (net_random() < clg->a2) clg->state = 1; - if (clg->a3 > net_random()) + if (net_random() > clg->a3) return true; } diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c index 68f9859..a609005 100644 --- a/net/sched/sch_tbf.c +++ b/net/sched/sch_tbf.c @@ -21,6 +21,7 @@ #include <net/netlink.h> #include <net/sch_generic.h> #include <net/pkt_sched.h> +#include <net/tcp.h> /* Simple Token Bucket Filter. @@ -117,6 +118,22 @@ struct tbf_sched_data { }; +/* + * Return length of individual segments of a gso packet, + * including all headers (MAC, IP, TCP/UDP) + */ +static unsigned int skb_gso_seglen(const struct sk_buff *skb) +{ + unsigned int hdr_len = skb_transport_header(skb) - skb_mac_header(skb); + const struct skb_shared_info *shinfo = skb_shinfo(skb); + + if (likely(shinfo->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))) + hdr_len += tcp_hdrlen(skb); + else + hdr_len += sizeof(struct udphdr); + return hdr_len + shinfo->gso_size; +} + /* GSO packet is too big, segment it so that tbf can transmit * each segment in time */ @@ -136,12 +153,8 @@ static int tbf_segment(struct sk_buff *skb, struct Qdisc *sch) while (segs) { nskb = segs->next; segs->next = NULL; - if (likely(segs->len <= q->max_size)) { - qdisc_skb_cb(segs)->pkt_len = segs->len; - ret = qdisc_enqueue(segs, q->qdisc); - } else { - ret = qdisc_reshape_fail(skb, sch); - } + qdisc_skb_cb(segs)->pkt_len = segs->len; + ret = qdisc_enqueue(segs, q->qdisc); if (ret != NET_XMIT_SUCCESS) { if (net_xmit_drop_count(ret)) sch->qstats.drops++; @@ -163,7 +176,7 @@ static int tbf_enqueue(struct sk_buff *skb, struct Qdisc *sch) int ret; if (qdisc_pkt_len(skb) > q->max_size) { - if (skb_is_gso(skb)) + if (skb_is_gso(skb) && skb_gso_seglen(skb) <= q->max_size) return tbf_segment(skb, sch); return qdisc_reshape_fail(skb, sch); } @@ -319,6 +332,11 @@ static int tbf_change(struct Qdisc *sch, struct nlattr *opt) if (max_size < 0) goto done; + if (max_size < psched_mtu(qdisc_dev(sch))) + pr_warn_ratelimited("sch_tbf: burst %u is lower than device %s mtu (%u) !\n", + max_size, qdisc_dev(sch)->name, + psched_mtu(qdisc_dev(sch))); + if (q->qdisc != &noop_qdisc) { err = fifo_set_limit(q->qdisc, qopt->limit); if (err) diff --git a/net/sctp/output.c b/net/sctp/output.c index e650978..0e2644d 100644 --- a/net/sctp/output.c +++ b/net/sctp/output.c @@ -474,10 +474,11 @@ int sctp_packet_transmit(struct sctp_packet *packet) * for a given destination transport address. */ - if (!tp->rto_pending) { + if (!chunk->resent && !tp->rto_pending) { chunk->rtt_in_progress = 1; tp->rto_pending = 1; } + has_data = 1; } diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index 94df758..f51ba98 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -446,6 +446,8 @@ void sctp_retransmit_mark(struct sctp_outq *q, transport->rto_pending = 0; } + chunk->resent = 1; + /* Move the chunk to the retransmit queue. The chunks * on the retransmit queue are always kept in order. */ @@ -1375,6 +1377,7 @@ static void sctp_check_transmitted(struct sctp_outq *q, * instance). */ if (!tchunk->tsn_gap_acked && + !tchunk->resent && tchunk->rtt_in_progress) { tchunk->rtt_in_progress = 0; rtt = jiffies - tchunk->sent_at; @@ -1391,7 +1394,8 @@ static void sctp_check_transmitted(struct sctp_outq *q, */ if (!tchunk->tsn_gap_acked) { tchunk->tsn_gap_acked = 1; - *highest_new_tsn_in_sack = tsn; + if (TSN_lt(*highest_new_tsn_in_sack, tsn)) + *highest_new_tsn_in_sack = tsn; bytes_acked += sctp_data_size(tchunk); if (!tchunk->transport) migrate_bytes += sctp_data_size(tchunk); diff --git a/net/socket.c b/net/socket.c index 0b18693..e83c416 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1973,7 +1973,7 @@ static int copy_msghdr_from_user(struct msghdr *kmsg, if (copy_from_user(kmsg, umsg, sizeof(struct msghdr))) return -EFAULT; if (kmsg->msg_namelen > sizeof(struct sockaddr_storage)) - return -EINVAL; + kmsg->msg_namelen = sizeof(struct sockaddr_storage); return 0; } diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c index 77ca965..b4af4eb 100644 --- a/security/integrity/digsig.c +++ b/security/integrity/digsig.c @@ -13,9 +13,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/err.h> -#include <linux/sched.h> #include <linux/rbtree.h> -#include <linux/cred.h> #include <linux/key-type.h> #include <linux/digsig.h> @@ -23,19 +21,11 @@ static struct key *keyring[INTEGRITY_KEYRING_MAX]; -#ifdef CONFIG_IMA_TRUSTED_KEYRING -static const char *keyring_name[INTEGRITY_KEYRING_MAX] = { - ".evm", - ".module", - ".ima", -}; -#else static const char *keyring_name[INTEGRITY_KEYRING_MAX] = { "_evm", "_module", "_ima", }; -#endif int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen, const char *digest, int digestlen) @@ -45,7 +35,7 @@ int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen, if (!keyring[id]) { keyring[id] = - request_key(&key_type_keyring, keyring_name[id], NULL); + request_key(&key_type_keyring, keyring_name[id], NULL); if (IS_ERR(keyring[id])) { int err = PTR_ERR(keyring[id]); pr_err("no %s keyring: %d\n", keyring_name[id], err); @@ -66,21 +56,3 @@ int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen, return -EOPNOTSUPP; } - -int integrity_init_keyring(const unsigned int id) -{ - const struct cred *cred = current_cred(); - const struct user_struct *user = cred->user; - - keyring[id] = keyring_alloc(keyring_name[id], KUIDT_INIT(0), - KGIDT_INIT(0), cred, - ((KEY_POS_ALL & ~KEY_POS_SETATTR) | - KEY_USR_VIEW | KEY_USR_READ), - KEY_ALLOC_NOT_IN_QUOTA, user->uid_keyring); - if (!IS_ERR(keyring[id])) - set_bit(KEY_FLAG_TRUSTED_ONLY, &keyring[id]->flags); - else - pr_info("Can't allocate %s keyring (%ld)\n", - keyring_name[id], PTR_ERR(keyring[id])); - return 0; -} diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig index dad8d4c..81a2797 100644 --- a/security/integrity/ima/Kconfig +++ b/security/integrity/ima/Kconfig @@ -123,11 +123,3 @@ config IMA_APPRAISE For more information on integrity appraisal refer to: <http://linux-ima.sourceforge.net> If unsure, say N. - -config IMA_TRUSTED_KEYRING - bool "Require all keys on the _ima keyring be signed" - depends on IMA_APPRAISE && SYSTEM_TRUSTED_KEYRING - default y - help - This option requires that all keys added to the _ima - keyring be signed by a key on the system trusted keyring. diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h index bf03c6a..9636e17 100644 --- a/security/integrity/ima/ima.h +++ b/security/integrity/ima/ima.h @@ -26,7 +26,8 @@ #include "../integrity.h" -enum ima_show_type { IMA_SHOW_BINARY, IMA_SHOW_ASCII }; +enum ima_show_type { IMA_SHOW_BINARY, IMA_SHOW_BINARY_NO_FIELD_LEN, + IMA_SHOW_ASCII }; enum tpm_pcrs { TPM_PCR0 = 0, TPM_PCR8 = 8 }; /* digest size for IMA, fits SHA1 or MD5 */ @@ -97,7 +98,8 @@ int ima_add_template_entry(struct ima_template_entry *entry, int violation, const char *op, struct inode *inode, const unsigned char *filename); int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash); -int ima_calc_field_array_hash(struct ima_field_data *field_data, int num_fields, +int ima_calc_field_array_hash(struct ima_field_data *field_data, + struct ima_template_desc *desc, int num_fields, struct ima_digest_data *hash); int __init ima_calc_boot_aggregate(struct ima_digest_data *hash); void ima_add_violation(struct file *file, const unsigned char *filename, diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c index 0e75408..8037484 100644 --- a/security/integrity/ima/ima_api.c +++ b/security/integrity/ima/ima_api.c @@ -94,6 +94,7 @@ int ima_store_template(struct ima_template_entry *entry, /* this function uses default algo */ hash.hdr.algo = HASH_ALGO_SHA1; result = ima_calc_field_array_hash(&entry->template_data[0], + entry->template_desc, num_fields, &hash.hdr); if (result < 0) { integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode, diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c index 46353ee..734e946 100644 --- a/security/integrity/ima/ima_appraise.c +++ b/security/integrity/ima/ima_appraise.c @@ -381,14 +381,3 @@ int ima_inode_removexattr(struct dentry *dentry, const char *xattr_name) } return result; } - -#ifdef CONFIG_IMA_TRUSTED_KEYRING -static int __init init_ima_keyring(void) -{ - int ret; - - ret = integrity_init_keyring(INTEGRITY_KEYRING_IMA); - return 0; -} -late_initcall(init_ima_keyring); -#endif diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c index 676e029..fdf60de 100644 --- a/security/integrity/ima/ima_crypto.c +++ b/security/integrity/ima/ima_crypto.c @@ -140,6 +140,7 @@ int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash) * Calculate the hash of template data */ static int ima_calc_field_array_hash_tfm(struct ima_field_data *field_data, + struct ima_template_desc *td, int num_fields, struct ima_digest_data *hash, struct crypto_shash *tfm) @@ -160,9 +161,13 @@ static int ima_calc_field_array_hash_tfm(struct ima_field_data *field_data, return rc; for (i = 0; i < num_fields; i++) { - rc = crypto_shash_update(&desc.shash, - (const u8 *) &field_data[i].len, - sizeof(field_data[i].len)); + if (strcmp(td->name, IMA_TEMPLATE_IMA_NAME) != 0) { + rc = crypto_shash_update(&desc.shash, + (const u8 *) &field_data[i].len, + sizeof(field_data[i].len)); + if (rc) + break; + } rc = crypto_shash_update(&desc.shash, field_data[i].data, field_data[i].len); if (rc) @@ -175,7 +180,8 @@ static int ima_calc_field_array_hash_tfm(struct ima_field_data *field_data, return rc; } -int ima_calc_field_array_hash(struct ima_field_data *field_data, int num_fields, +int ima_calc_field_array_hash(struct ima_field_data *field_data, + struct ima_template_desc *desc, int num_fields, struct ima_digest_data *hash) { struct crypto_shash *tfm; @@ -185,7 +191,8 @@ int ima_calc_field_array_hash(struct ima_field_data *field_data, int num_fields, if (IS_ERR(tfm)) return PTR_ERR(tfm); - rc = ima_calc_field_array_hash_tfm(field_data, num_fields, hash, tfm); + rc = ima_calc_field_array_hash_tfm(field_data, desc, num_fields, + hash, tfm); ima_free_tfm(tfm); diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c index d47a7c8..db01125 100644 --- a/security/integrity/ima/ima_fs.c +++ b/security/integrity/ima/ima_fs.c @@ -120,6 +120,7 @@ static int ima_measurements_show(struct seq_file *m, void *v) struct ima_template_entry *e; int namelen; u32 pcr = CONFIG_IMA_MEASURE_PCR_IDX; + bool is_ima_template = false; int i; /* get entry */ @@ -145,14 +146,21 @@ static int ima_measurements_show(struct seq_file *m, void *v) ima_putc(m, e->template_desc->name, namelen); /* 5th: template length (except for 'ima' template) */ - if (strcmp(e->template_desc->name, IMA_TEMPLATE_IMA_NAME) != 0) + if (strcmp(e->template_desc->name, IMA_TEMPLATE_IMA_NAME) == 0) + is_ima_template = true; + + if (!is_ima_template) ima_putc(m, &e->template_data_len, sizeof(e->template_data_len)); /* 6th: template specific data */ for (i = 0; i < e->template_desc->num_fields; i++) { - e->template_desc->fields[i]->field_show(m, IMA_SHOW_BINARY, - &e->template_data[i]); + enum ima_show_type show = IMA_SHOW_BINARY; + struct ima_template_field *field = e->template_desc->fields[i]; + + if (is_ima_template && strcmp(field->field_id, "d") == 0) + show = IMA_SHOW_BINARY_NO_FIELD_LEN; + field->field_show(m, show, &e->template_data[i]); } return 0; } diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c index 4e5da99..635695f 100644 --- a/security/integrity/ima/ima_template.c +++ b/security/integrity/ima/ima_template.c @@ -90,7 +90,7 @@ static struct ima_template_field *lookup_template_field(const char *field_id) return NULL; } -static int template_fmt_size(char *template_fmt) +static int template_fmt_size(const char *template_fmt) { char c; int template_fmt_len = strlen(template_fmt); @@ -106,22 +106,29 @@ static int template_fmt_size(char *template_fmt) return j + 1; } -static int template_desc_init_fields(char *template_fmt, +static int template_desc_init_fields(const char *template_fmt, struct ima_template_field ***fields, int *num_fields) { - char *c, *template_fmt_ptr = template_fmt; + char *c, *template_fmt_copy, *template_fmt_ptr; int template_num_fields = template_fmt_size(template_fmt); int i, result = 0; if (template_num_fields > IMA_TEMPLATE_NUM_FIELDS_MAX) return -EINVAL; + /* copying is needed as strsep() modifies the original buffer */ + template_fmt_copy = kstrdup(template_fmt, GFP_KERNEL); + if (template_fmt_copy == NULL) + return -ENOMEM; + *fields = kzalloc(template_num_fields * sizeof(*fields), GFP_KERNEL); if (*fields == NULL) { result = -ENOMEM; goto out; } + + template_fmt_ptr = template_fmt_copy; for (i = 0; (c = strsep(&template_fmt_ptr, "|")) != NULL && i < template_num_fields; i++) { struct ima_template_field *f = lookup_template_field(c); @@ -133,10 +140,12 @@ static int template_desc_init_fields(char *template_fmt, (*fields)[i] = f; } *num_fields = i; - return 0; out: - kfree(*fields); - *fields = NULL; + if (result < 0) { + kfree(*fields); + *fields = NULL; + } + kfree(template_fmt_copy); return result; } diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c index 6d66ad6..c38adcc 100644 --- a/security/integrity/ima/ima_template_lib.c +++ b/security/integrity/ima/ima_template_lib.c @@ -109,9 +109,12 @@ static void ima_show_template_data_binary(struct seq_file *m, enum data_formats datafmt, struct ima_field_data *field_data) { - ima_putc(m, &field_data->len, sizeof(u32)); + if (show != IMA_SHOW_BINARY_NO_FIELD_LEN) + ima_putc(m, &field_data->len, sizeof(u32)); + if (!field_data->len) return; + ima_putc(m, field_data->data, field_data->len); } @@ -125,6 +128,7 @@ static void ima_show_template_field_data(struct seq_file *m, ima_show_template_data_ascii(m, show, datafmt, field_data); break; case IMA_SHOW_BINARY: + case IMA_SHOW_BINARY_NO_FIELD_LEN: ima_show_template_data_binary(m, show, datafmt, field_data); break; default: diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h index b9e7c13..2fb5e53 100644 --- a/security/integrity/integrity.h +++ b/security/integrity/integrity.h @@ -137,19 +137,12 @@ static inline int integrity_digsig_verify(const unsigned int id, #ifdef CONFIG_INTEGRITY_ASYMMETRIC_KEYS int asymmetric_verify(struct key *keyring, const char *sig, int siglen, const char *data, int datalen); - -int integrity_init_keyring(const unsigned int id); #else static inline int asymmetric_verify(struct key *keyring, const char *sig, int siglen, const char *data, int datalen) { return -EOPNOTSUPP; } - -static int integrity_init_keyring(const unsigned int id) -{ - return 0; -} #endif #ifdef CONFIG_INTEGRITY_AUDIT diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c index d322689..9048777 100644 --- a/sound/firewire/amdtp.c +++ b/sound/firewire/amdtp.c @@ -434,17 +434,14 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle) return; index = s->packet_index; + /* this module generate empty packet for 'no data' */ syt = calculate_syt(s, cycle); - if (!(s->flags & CIP_BLOCKING)) { + if (!(s->flags & CIP_BLOCKING)) data_blocks = calculate_data_blocks(s); - } else { - if (syt != 0xffff) { - data_blocks = s->syt_interval; - } else { - data_blocks = 0; - syt = 0xffffff; - } - } + else if (syt != 0xffff) + data_blocks = s->syt_interval; + else + data_blocks = 0; buffer = s->buffer.packets[index].buffer; buffer[0] = cpu_to_be32(ACCESS_ONCE(s->source_node_id_field) | diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 77db694..7aa9870 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -698,7 +698,6 @@ struct hda_bus { unsigned int in_reset:1; /* during reset operation */ unsigned int power_keep_link_on:1; /* don't power off HDA link */ unsigned int no_response_fallback:1; /* don't fallback at RIRB error */ - unsigned int avoid_link_reset:1; /* don't reset link at runtime PM */ int primary_dig_out_type; /* primary digital out PCM type */ }; diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c index 3067ed4..c4671d0 100644 --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -2506,12 +2506,8 @@ static int create_out_jack_modes(struct hda_codec *codec, int num_pins, for (i = 0; i < num_pins; i++) { hda_nid_t pin = pins[i]; - if (pin == spec->hp_mic_pin) { - int ret = create_hp_mic_jack_mode(codec, pin); - if (ret < 0) - return ret; + if (pin == spec->hp_mic_pin) continue; - } if (get_out_jack_num_items(codec, pin) > 1) { struct snd_kcontrol_new *knew; char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; @@ -2764,7 +2760,7 @@ static int hp_mic_jack_mode_put(struct snd_kcontrol *kcontrol, val &= ~(AC_PINCTL_VREFEN | PIN_HP); val |= get_vref_idx(vref_caps, idx) | PIN_IN; } else - val = snd_hda_get_default_vref(codec, nid); + val = snd_hda_get_default_vref(codec, nid) | PIN_IN; } snd_hda_set_pin_ctl_cache(codec, nid, val); call_hp_automute(codec, NULL); @@ -2784,9 +2780,6 @@ static int create_hp_mic_jack_mode(struct hda_codec *codec, hda_nid_t pin) struct hda_gen_spec *spec = codec->spec; struct snd_kcontrol_new *knew; - if (get_out_jack_num_items(codec, pin) <= 1 && - get_in_jack_num_items(codec, pin) <= 1) - return 0; /* no need */ knew = snd_hda_gen_add_kctl(spec, "Headphone Mic Jack Mode", &hp_mic_jack_mode_enum); if (!knew) @@ -2815,6 +2808,42 @@ static int add_loopback_list(struct hda_gen_spec *spec, hda_nid_t mix, int idx) return 0; } +/* return true if either a volume or a mute amp is found for the given + * aamix path; the amp has to be either in the mixer node or its direct leaf + */ +static bool look_for_mix_leaf_ctls(struct hda_codec *codec, hda_nid_t mix_nid, + hda_nid_t pin, unsigned int *mix_val, + unsigned int *mute_val) +{ + int idx, num_conns; + const hda_nid_t *list; + hda_nid_t nid; + + idx = snd_hda_get_conn_index(codec, mix_nid, pin, true); + if (idx < 0) + return false; + + *mix_val = *mute_val = 0; + if (nid_has_volume(codec, mix_nid, HDA_INPUT)) + *mix_val = HDA_COMPOSE_AMP_VAL(mix_nid, 3, idx, HDA_INPUT); + if (nid_has_mute(codec, mix_nid, HDA_INPUT)) + *mute_val = HDA_COMPOSE_AMP_VAL(mix_nid, 3, idx, HDA_INPUT); + if (*mix_val && *mute_val) + return true; + + /* check leaf node */ + num_conns = snd_hda_get_conn_list(codec, mix_nid, &list); + if (num_conns < idx) + return false; + nid = list[idx]; + if (!*mix_val && nid_has_volume(codec, nid, HDA_OUTPUT)) + *mix_val = HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT); + if (!*mute_val && nid_has_mute(codec, nid, HDA_OUTPUT)) + *mute_val = HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT); + + return *mix_val || *mute_val; +} + /* create input playback/capture controls for the given pin */ static int new_analog_input(struct hda_codec *codec, int input_idx, hda_nid_t pin, const char *ctlname, int ctlidx, @@ -2822,12 +2851,11 @@ static int new_analog_input(struct hda_codec *codec, int input_idx, { struct hda_gen_spec *spec = codec->spec; struct nid_path *path; - unsigned int val; + unsigned int mix_val, mute_val; int err, idx; - if (!nid_has_volume(codec, mix_nid, HDA_INPUT) && - !nid_has_mute(codec, mix_nid, HDA_INPUT)) - return 0; /* no need for analog loopback */ + if (!look_for_mix_leaf_ctls(codec, mix_nid, pin, &mix_val, &mute_val)) + return 0; path = snd_hda_add_new_path(codec, pin, mix_nid, 0); if (!path) @@ -2836,20 +2864,18 @@ static int new_analog_input(struct hda_codec *codec, int input_idx, spec->loopback_paths[input_idx] = snd_hda_get_path_idx(codec, path); idx = path->idx[path->depth - 1]; - if (nid_has_volume(codec, mix_nid, HDA_INPUT)) { - val = HDA_COMPOSE_AMP_VAL(mix_nid, 3, idx, HDA_INPUT); - err = __add_pb_vol_ctrl(spec, HDA_CTL_WIDGET_VOL, ctlname, ctlidx, val); + if (mix_val) { + err = __add_pb_vol_ctrl(spec, HDA_CTL_WIDGET_VOL, ctlname, ctlidx, mix_val); if (err < 0) return err; - path->ctls[NID_PATH_VOL_CTL] = val; + path->ctls[NID_PATH_VOL_CTL] = mix_val; } - if (nid_has_mute(codec, mix_nid, HDA_INPUT)) { - val = HDA_COMPOSE_AMP_VAL(mix_nid, 3, idx, HDA_INPUT); - err = __add_pb_sw_ctrl(spec, HDA_CTL_WIDGET_MUTE, ctlname, ctlidx, val); + if (mute_val) { + err = __add_pb_sw_ctrl(spec, HDA_CTL_WIDGET_MUTE, ctlname, ctlidx, mute_val); if (err < 0) return err; - path->ctls[NID_PATH_MUTE_CTL] = val; + path->ctls[NID_PATH_MUTE_CTL] = mute_val; } path->active = true; @@ -4383,6 +4409,17 @@ int snd_hda_gen_parse_auto_config(struct hda_codec *codec, if (err < 0) return err; + /* create "Headphone Mic Jack Mode" if no input selection is + * available (or user specifies add_jack_modes hint) + */ + if (spec->hp_mic_pin && + (spec->auto_mic || spec->input_mux.num_items == 1 || + spec->add_jack_modes)) { + err = create_hp_mic_jack_mode(codec, spec->hp_mic_pin); + if (err < 0) + return err; + } + if (spec->add_jack_modes) { if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT) { err = create_out_jack_modes(codec, cfg->line_outs, diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 7a09404..c6d2301 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2994,8 +2994,7 @@ static int azx_runtime_suspend(struct device *dev) STATESTS_INT_MASK); azx_stop_chip(chip); - if (!chip->bus->avoid_link_reset) - azx_enter_link_reset(chip); + azx_enter_link_reset(chip); azx_clear_irq_pending(chip); if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) hda_display_power(false); diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index c205bb1..1f2717f 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -3244,9 +3244,29 @@ enum { #if IS_ENABLED(CONFIG_THINKPAD_ACPI) #include <linux/thinkpad_acpi.h> +#include <acpi/acpi.h> static int (*led_set_func)(int, bool); +static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void *context, + void **rv) +{ + bool *found = context; + *found = true; + return AE_OK; +} + +static bool is_thinkpad(struct hda_codec *codec) +{ + bool found = false; + if (codec->subsystem_id >> 16 != 0x17aa) + return false; + if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, &found, NULL)) && found) + return true; + found = false; + return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb, &found, NULL)) && found; +} + static void update_tpacpi_mute_led(void *private_data, int enabled) { struct hda_codec *codec = private_data; @@ -3279,6 +3299,8 @@ static void cxt_fixup_thinkpad_acpi(struct hda_codec *codec, bool removefunc = false; if (action == HDA_FIXUP_ACT_PROBE) { + if (!is_thinkpad(codec)) + return; if (!led_set_func) led_set_func = symbol_request(tpacpi_led_set); if (!led_set_func) { @@ -3494,6 +3516,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = { SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC), SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC), SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC), + SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI), SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004", CXT_PINCFG_LEMOTE_A1004), SND_PCI_QUIRK(0x1c06, 0x2012, "Lemote A1205", CXT_PINCFG_LEMOTE_A1205), {} diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 5e42059..c770bdb 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -1782,6 +1782,8 @@ enum { ALC889_FIXUP_IMAC91_VREF, ALC882_FIXUP_INV_DMIC, ALC882_FIXUP_NO_PRIMARY_HP, + ALC887_FIXUP_ASUS_BASS, + ALC887_FIXUP_BASS_CHMAP, }; static void alc889_fixup_coef(struct hda_codec *codec, @@ -1915,6 +1917,9 @@ 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 const struct hda_fixup alc882_fixups[] = { [ALC882_FIXUP_ABIT_AW9D_MAX] = { .type = HDA_FIXUP_PINS, @@ -2105,6 +2110,19 @@ static const struct hda_fixup alc882_fixups[] = { .type = HDA_FIXUP_FUNC, .v.func = alc882_fixup_no_primary_hp, }, + [ALC887_FIXUP_ASUS_BASS] = { + .type = HDA_FIXUP_PINS, + .v.pins = (const struct hda_pintbl[]) { + {0x16, 0x99130130}, /* bass speaker */ + {} + }, + .chained = true, + .chain_id = ALC887_FIXUP_BASS_CHMAP, + }, + [ALC887_FIXUP_BASS_CHMAP] = { + .type = HDA_FIXUP_FUNC, + .v.func = alc_fixup_bass_chmap, + }, }; static const struct snd_pci_quirk alc882_fixup_tbl[] = { @@ -2138,6 +2156,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = { SND_PCI_QUIRK(0x1043, 0x1873, "ASUS W90V", ALC882_FIXUP_ASUS_W90V), SND_PCI_QUIRK(0x1043, 0x1971, "Asus W2JC", ALC882_FIXUP_ASUS_W2JC), SND_PCI_QUIRK(0x1043, 0x835f, "Asus Eee 1601", ALC888_FIXUP_EEE1601), + SND_PCI_QUIRK(0x1043, 0x84bc, "ASUS ET2700", ALC887_FIXUP_ASUS_BASS), 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), @@ -3798,6 +3817,7 @@ enum { ALC271_FIXUP_HP_GATE_MIC_JACK, ALC269_FIXUP_ACER_AC700, ALC269_FIXUP_LIMIT_INT_MIC_BOOST, + ALC269VB_FIXUP_ASUS_ZENBOOK, ALC269_FIXUP_LIMIT_INT_MIC_BOOST_MUTE_LED, ALC269VB_FIXUP_ORDISSIMO_EVE2, ALC283_FIXUP_CHROME_BOOK, @@ -4075,6 +4095,12 @@ static const struct hda_fixup alc269_fixups[] = { .chained = true, .chain_id = ALC269_FIXUP_THINKPAD_ACPI, }, + [ALC269VB_FIXUP_ASUS_ZENBOOK] = { + .type = HDA_FIXUP_FUNC, + .v.func = alc269_fixup_limit_int_mic_boost, + .chained = true, + .chain_id = ALC269VB_FIXUP_DMIC, + }, [ALC269_FIXUP_LIMIT_INT_MIC_BOOST_MUTE_LED] = { .type = HDA_FIXUP_FUNC, .v.func = alc269_fixup_limit_int_mic_boost, @@ -4189,8 +4215,8 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { 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), - SND_PCI_QUIRK(0x1043, 0x1427, "Asus Zenbook UX31E", ALC269VB_FIXUP_DMIC), - SND_PCI_QUIRK(0x1043, 0x1517, "Asus Zenbook UX31A", ALC269VB_FIXUP_DMIC), + SND_PCI_QUIRK(0x1043, 0x1427, "Asus Zenbook UX31E", ALC269VB_FIXUP_ASUS_ZENBOOK), + SND_PCI_QUIRK(0x1043, 0x1517, "Asus Zenbook UX31A", ALC269VB_FIXUP_ASUS_ZENBOOK), SND_PCI_QUIRK(0x1043, 0x16e3, "ASUS UX50", ALC269_FIXUP_STEREO_DMIC), SND_PCI_QUIRK(0x1043, 0x1a13, "Asus G73Jw", ALC269_FIXUP_ASUS_G73JW), SND_PCI_QUIRK(0x1043, 0x1b13, "Asus U41SV", ALC269_FIXUP_INV_DMIC), @@ -4715,7 +4741,7 @@ static const struct snd_pcm_chmap_elem asus_pcm_2_1_chmaps[] = { }; /* override the 2.1 chmap */ -static void alc662_fixup_bass_chmap(struct hda_codec *codec, +static void alc_fixup_bass_chmap(struct hda_codec *codec, const struct hda_fixup *fix, int action) { if (action == HDA_FIXUP_ACT_BUILD) { @@ -4923,7 +4949,7 @@ static const struct hda_fixup alc662_fixups[] = { }, [ALC662_FIXUP_BASS_CHMAP] = { .type = HDA_FIXUP_FUNC, - .v.func = alc662_fixup_bass_chmap, + .v.func = alc_fixup_bass_chmap, .chained = true, .chain_id = ALC662_FIXUP_ASUS_MODE4 }, @@ -4936,7 +4962,7 @@ static const struct hda_fixup alc662_fixups[] = { }, [ALC662_FIXUP_BASS_1A_CHMAP] = { .type = HDA_FIXUP_FUNC, - .v.func = alc662_fixup_bass_chmap, + .v.func = alc_fixup_bass_chmap, .chained = true, .chain_id = ALC662_FIXUP_BASS_1A, }, @@ -5118,6 +5144,7 @@ static int patch_alc662(struct hda_codec *codec) case 0x10ec0272: case 0x10ec0663: case 0x10ec0665: + case 0x10ec0668: set_beep_amp(spec, 0x0b, 0x04, HDA_INPUT); break; case 0x10ec0273: @@ -5175,6 +5202,7 @@ static int patch_alc680(struct hda_codec *codec) */ static const struct hda_codec_preset snd_hda_preset_realtek[] = { { .id = 0x10ec0221, .name = "ALC221", .patch = patch_alc269 }, + { .id = 0x10ec0231, .name = "ALC231", .patch = patch_alc269 }, { .id = 0x10ec0233, .name = "ALC233", .patch = patch_alc269 }, { .id = 0x10ec0255, .name = "ALC255", .patch = patch_alc269 }, { .id = 0x10ec0260, .name = "ALC260", .patch = patch_alc260 }, diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index d2cc004..088a5af 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -2094,7 +2094,8 @@ static void stac92hd83xxx_fixup_hp_mic_led(struct hda_codec *codec, if (action == HDA_FIXUP_ACT_PRE_PROBE) { spec->mic_mute_led_gpio = 0x08; /* GPIO3 */ - codec->bus->avoid_link_reset = 1; + /* resetting controller clears GPIO, so we need to keep on */ + codec->bus->power_keep_link_on = 1; } } diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c index b9ba0fc..83aabea2 100644 --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -636,8 +636,22 @@ static int data_ep_set_params(struct snd_usb_endpoint *ep, if (usb_pipein(ep->pipe) || snd_usb_endpoint_implicit_feedback_sink(ep)) { + urb_packs = packs_per_ms; + /* + * Wireless devices can poll at a max rate of once per 4ms. + * For dataintervals less than 5, increase the packet count to + * allow the host controller to use bursting to fill in the + * gaps. + */ + if (snd_usb_get_speed(ep->chip->dev) == USB_SPEED_WIRELESS) { + int interval = ep->datainterval; + while (interval < 5) { + urb_packs <<= 1; + ++interval; + } + } /* make capture URBs <= 1 ms and smaller than a period */ - urb_packs = min(max_packs_per_urb, packs_per_ms); + urb_packs = min(max_packs_per_urb, urb_packs); while (urb_packs > 1 && urb_packs * maxsize >= period_bytes) urb_packs >>= 1; ep->nurbs = MAX_URBS; diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 0362d57..217c82e 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -1606,6 +1606,24 @@ process_arg(struct event_format *event, struct print_arg *arg, char **tok) static enum event_type process_op(struct event_format *event, struct print_arg *arg, char **tok); +/* + * For __print_symbolic() and __print_flags, we need to completely + * evaluate the first argument, which defines what to print next. + */ +static enum event_type +process_field_arg(struct event_format *event, struct print_arg *arg, char **tok) +{ + enum event_type type; + + type = process_arg(event, arg, tok); + + while (type == EVENT_OP) { + type = process_op(event, arg, tok); + } + + return type; +} + static enum event_type process_cond(struct event_format *event, struct print_arg *top, char **tok) { @@ -2371,7 +2389,7 @@ process_flags(struct event_format *event, struct print_arg *arg, char **tok) goto out_free; } - type = process_arg(event, field, &token); + type = process_field_arg(event, field, &token); /* Handle operations in the first argument */ while (type == EVENT_OP) @@ -2424,7 +2442,8 @@ process_symbols(struct event_format *event, struct print_arg *arg, char **tok) goto out_free; } - type = process_arg(event, field, &token); + type = process_field_arg(event, field, &token); + if (test_type_token(type, token, EVENT_DELIM, ",")) goto out_free_field; @@ -3446,7 +3465,7 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg * is in the bottom half of the 32 bit field. */ offset &= 0xffff; - val = (unsigned long long)(data + offset); + val = (unsigned long long)((unsigned long)data + offset); break; default: /* not sure what to do there */ return 0; diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 369c036..1cd0357 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2078,8 +2078,10 @@ static int process_group_desc(struct perf_file_section *section __maybe_unused, if (evsel->idx == (int) desc[i].leader_idx) { evsel->leader = evsel; /* {anon_group} is a dummy name */ - if (strcmp(desc[i].name, "{anon_group}")) + if (strcmp(desc[i].name, "{anon_group}")) { evsel->group_name = desc[i].name; + desc[i].name = NULL; + } evsel->nr_members = desc[i].nr_members; if (i >= nr_groups || nr > 0) { @@ -2105,7 +2107,7 @@ static int process_group_desc(struct perf_file_section *section __maybe_unused, ret = 0; out_free: - while ((int) --i >= 0) + for (i = 0; i < nr_groups; i++) free(desc[i].name); free(desc); diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c index cd8e2f5..49eaf1d 100644 --- a/tools/perf/util/thread.c +++ b/tools/perf/util/thread.c @@ -70,14 +70,13 @@ int thread__set_comm(struct thread *thread, const char *str, u64 timestamp) /* Override latest entry if it had no specific time coverage */ if (!curr->start) { comm__override(curr, str, timestamp); - return 0; + } else { + new = comm__new(str, timestamp); + if (!new) + return -ENOMEM; + list_add(&new->list, &thread->comm_list); } - new = comm__new(str, timestamp); - if (!new) - return -ENOMEM; - - list_add(&new->list, &thread->comm_list); thread->comm_set = true; return 0; diff --git a/tools/power/cpupower/man/cpupower-idle-info.1 b/tools/power/cpupower/man/cpupower-idle-info.1 index 4178eff..7b3646a 100644 --- a/tools/power/cpupower/man/cpupower-idle-info.1 +++ b/tools/power/cpupower/man/cpupower-idle-info.1 @@ -87,4 +87,5 @@ Thomas Renninger <trenn@suse.de> .fi .SH "SEE ALSO" .LP -cpupower(1), cpupower\-monitor(1), cpupower\-info(1), cpupower\-set(1) +cpupower(1), cpupower\-monitor(1), cpupower\-info(1), cpupower\-set(1), +cpupower\-idle\-set(1) diff --git a/tools/power/cpupower/man/cpupower-idle-set.1 b/tools/power/cpupower/man/cpupower-idle-set.1 new file mode 100644 index 0000000..6b16072 --- /dev/null +++ b/tools/power/cpupower/man/cpupower-idle-set.1 @@ -0,0 +1,71 @@ +.TH "CPUPOWER-IDLE-SET" "1" "0.1" "" "cpupower Manual" +.SH "NAME" +.LP +cpupower idle\-set \- Utility to set cpu idle state specific kernel options +.SH "SYNTAX" +.LP +cpupower [ \-c cpulist ] idle\-info [\fIoptions\fP] +.SH "DESCRIPTION" +.LP +The cpupower idle\-set subcommand allows to set cpu idle, also called cpu +sleep state, specific options offered by the kernel. One example is disabling +sleep states. This can be handy for power vs performance tuning. +.SH "OPTIONS" +.LP +.TP +\fB\-d\fR \fB\-\-disable\fR +Disable a specific processor sleep state. +.TP +\fB\-e\fR \fB\-\-enable\fR +Enable a specific processor sleep state. + +.SH "REMARKS" +.LP +Cpuidle Governors Policy on Disabling Sleep States + +.RS 4 +Depending on the used cpuidle governor, implementing the kernel policy +how to choose sleep states, subsequent sleep states on this core, might get +disabled as well. + +There are two cpuidle governors ladder and menu. While the ladder +governor is always available, if CONFIG_CPU_IDLE is selected, the +menu governor additionally requires CONFIG_NO_HZ. + +The behavior and the effect of the disable variable depends on the +implementation of a particular governor. In the ladder governor, for +example, it is not coherent, i.e. if one is disabling a light state, +then all deeper states are disabled as well. Likewise, if one enables a +deep state but a lighter state still is disabled, then this has no effect. +.RE +.LP +Disabling the Lightest Sleep State may not have any Affect + +.RS 4 +If criteria are not met to enter deeper sleep states and the lightest sleep +state is chosen when idle, the kernel may still enter this sleep state, +irrespective of whether it is disabled or not. This is also reflected in +the usage count of the disabled sleep state when using the cpupower idle-info +command. +.RE +.LP +Selecting specific CPU Cores + +.RS 4 +By default processor sleep states of all CPU cores are set. Please refer +to the cpupower(1) manpage in the \-\-cpu option section how to disable +C-states of specific cores. +.RE +.SH "FILES" +.nf +\fI/sys/devices/system/cpu/cpu*/cpuidle/state*\fP +\fI/sys/devices/system/cpu/cpuidle/*\fP +.fi +.SH "AUTHORS" +.nf +Thomas Renninger <trenn@suse.de> +.fi +.SH "SEE ALSO" +.LP +cpupower(1), cpupower\-monitor(1), cpupower\-info(1), cpupower\-set(1), +cpupower\-idle\-info(1) diff --git a/tools/power/cpupower/utils/helpers/sysfs.c b/tools/power/cpupower/utils/helpers/sysfs.c index 5cdc600..851c7a1 100644 --- a/tools/power/cpupower/utils/helpers/sysfs.c +++ b/tools/power/cpupower/utils/helpers/sysfs.c @@ -278,7 +278,7 @@ static char *sysfs_idlestate_get_one_string(unsigned int cpu, int sysfs_is_idlestate_disabled(unsigned int cpu, unsigned int idlestate) { - if (sysfs_get_idlestate_count(cpu) < idlestate) + if (sysfs_get_idlestate_count(cpu) <= idlestate) return -1; if (!sysfs_idlestate_file_exists(cpu, idlestate, @@ -303,7 +303,7 @@ int sysfs_idlestate_disable(unsigned int cpu, char value[SYSFS_PATH_MAX]; int bytes_written; - if (sysfs_get_idlestate_count(cpu) < idlestate) + if (sysfs_get_idlestate_count(cpu) <= idlestate) return -1; if (!sysfs_idlestate_file_exists(cpu, idlestate, |