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Most functions that take a GPIO descriptor in need to check the
descriptor for IS_ERR(). We do this mostly in the VALIDATE_DESC()
macro except for the gpiod_to_irq() function which needs special
handling.
Cc: stable@vger.kernel.org
Reported-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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commit 54d77198fdfbc4f0fe11b4252c1d9c97d51a3264
("gpio: bail out silently on NULL descriptors")
doesn't work for gpiod_to_irq(): drivers assume that NULL
descriptors will give negative IRQ numbers in return.
It has been pointed out that returning 0 is NO_IRQ and that
drivers should be amended to treat this as an error, but that
is for the longer term: now let us repair the semantics.
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Reported-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Fixes: 9ae482104cb9 ("gpio: 104-idi-48: Clear pending interrupt once in IRQ handler")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
"A couple more of d_walk()/d_subdirs reordering fixes (stable fodder;
ought to solve that crap for good) and a fix for a brown paperbag bug
in d_alloc_parallel() (this cycle)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix idiotic braino in d_alloc_parallel()
autofs races
much milder d_walk() race
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Two fixes for the tracing system:
- When trace_printk() is used with a non constant format descriptor,
it adds a NULL pointer into the trace format section, and the code
isn't prepared to deal with it. This bug appeared by a change that
was added in v3.5.
- The ftracetest (selftests section) can't handle testing histograms
when histograms are not configured. Currently it shows that they
fail the test, when they should state that they are unsupported.
This bug was added in the 4.7 merge window with the addition of the
historgram code"
* tag 'trace-v4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftracetest: Fix hist unsupported result in hist selftests
tracing: Handle NULL formats in hold_module_trace_bprintk_format()
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"Two more bugs fixes for 4.7:
- a KVM regression introduced with the pgtable.c code split
- a perf issue with two hardware PMUs using a shared event context"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/cpum_cf: use perf software context for hardware counters
KVM: s390/mm: Fix CMMA reset during reboot
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Two stability fixes plus a security fix for the dell-smm driver"
* tag 'hwmon-for-linus-v4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (dell-smm) Disallow fan_type() calls on broken machines
hwmon: (dell-smm) Restrict fan control and serial number to CAP_SYS_ADMIN by default
hwmon: (dell-smm) Fail in ioctl I8K_BIOS_VERSION when bios version is not a number
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Check for d_unhashed() while searching in in-lookup hash was absolutely
wrong. Worse, it masked a deadlock on dget() done under bitlock that
nests inside ->d_lock. Thanks to J. R. Okajima for spotting it.
Spotted-by: "J. R. Okajima" <hooanon05g@gmail.com>
Wearing-brown-paperbag: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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When histograms are not configured in the kernel, the ftracetest histogram
selftests should return "unsupported" and not "Failed". To detect this, the
test scripts have:
FEATURE=`grep hist events/sched/sched_process_fork/trigger`
if [ -z "$FEATURE" ]; then
echo "hist trigger is not supported"
exit_unsupported
fi
The problem is that '-e' is in effect and any error will cause the program
to terminate. The grep for 'hist' fails, because it is not compiled it (thus
unsupported), but because grep has an error code for failing to find the
string, it causes the program to terminate, and is marked as a failed test.
Namhyung Kim recommended to test for the "hist" file located in
events/sched/sched_process_fork/hist instead, as it is more inline with the
other checks. As the hist file is only created if the histogram feature is
enabled, that is a valid check.
Link: http://lkml.kernel.org/r/20160523151538.4ea9ce0c@gandalf.local.home
Suggested-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Fixes: 76929ab51f0ee ("kselftests/ftrace: Add hist trigger testcases")
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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If a task uses a non constant string for the format parameter in
trace_printk(), then the trace_printk_fmt variable is set to NULL. This
variable is then saved in the __trace_printk_fmt section.
The function hold_module_trace_bprintk_format() checks to see if duplicate
formats are used by modules, and reuses them if so (saves them to the list
if it is new). But this function calls lookup_format() that does a strcmp()
to the value (which is now NULL) and can cause a kernel oops.
This wasn't an issue till 3debb0a9ddb ("tracing: Fix trace_printk() to print
when not using bprintk()") which added "__used" to the trace_printk_fmt
variable, and before that, the kernel simply optimized it out (no NULL value
was saved).
The fix is simply to handle the NULL pointer in lookup_format() and have the
caller ignore the value if it was NULL.
Link: http://lkml.kernel.org/r/1464769870-18344-1-git-send-email-zhengjun.xing@intel.com
Reported-by: xingzhen <zhengjun.xing@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Fixes: 3debb0a9ddb ("tracing: Fix trace_printk() to print when not using bprintk()")
Cc: stable@vger.kernel.org # v3.5+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF fixes and a reiserfs fix from Jan Kara:
"A couple of udf fixes (most notably a bug in parsing UDF partitions
which led to inability to mount recent Windows installation media) and
a reiserfs fix for handling kstrdup failure"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
reiserfs: check kstrdup failure
udf: Use correct partition reference number for metadata
udf: Use IS_ERR when loading metadata mirror file entry
udf: Don't BUG on missing metadata partition descriptor
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git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"Some fixes has piled up, so time to send them upstream.
These fixes include:
- at_xdmac fixes for residue and other stuff
- update MAINTAINERS for dma dt bindings
- mv_xor fix for incorrect offset"
* tag 'dmaengine-fix-4.7-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: mv_xor: Fix incorrect offset in dma_map_page()
dmaengine: at_xdmac: double FIFO flush needed to compute residue
dmaengine: at_xdmac: fix residue corruption
dmaengine: at_xdmac: align descriptors on 64 bits
MAINTAINERS: Add file patterns for dma device tree bindings
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Another batch of fixes for ARM SoC platforms. Most are smaller fixes.
Two areas that are worth pointing out are:
- OMAP had a handful of changes to voltage specs that caused a bit of
churn, most of volume of change in this branch is due to this.
- There are a couple of _rcuidle fixes from Paul that touch common
code and came in through the OMAP tree since they were the ones who
saw the problems.
The rest is smaller changes across a handful of platforms"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (36 commits)
ARM: dts: STi: stih407-family: Disable reserved-memory co-processor nodes
ARM: dts: am437x-sk-evm: Reduce i2c0 bus speed for tps65218
ARM: OMAP2+: timer: add probe for clocksources
ARM: OMAP1: fix ams-delta FIQ handler to work with sparse IRQ
memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing
arm: Use _rcuidle for smp_cross_call() tracepoints
MAINTAINERS: Add myself as reviewer of ARM FSL/NXP
ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_mem_ret
ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_logic_ret
ARM: OMAP: DRA7: powerdomain data: Set L3init and L4per to ON
ARM: imx6ul: Fix Micrel PHY mask
ARM: OMAP2+: Select OMAP_INTERCONNECT for SOC_AM43XX
ARM: dts: DRA74x: fix DSS PLL2 addresses
ARM: OMAP2: Enable Errata 430973 for OMAP3
ARM: dts: socfpga: Add missing PHY phandle
ARM: dts: exynos: Fix port nodes names for Exynos5420 Peach Pit board
ARM: dts: exynos: Fix port nodes names for Exynos5250 Snow board
ARM: dts: sun6i: yones-toptech-bs1078-v2: Drop constraints on dc1sw regulator
ARM: dts: sun6i: primo81: Drop constraints on dc1sw regulator
ARM: dts: sunxi: Add OLinuXino Lime2 eMMC to the Makefile
...
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fixes
OMAP-GPMC: Fixes for for v4.7-rc cycle:
- Fix omap gpmc EXTRADELAY timing. The DT provided timings
were wrongly used causing devices requiring extra delay timing
to fail.
* tag 'gpmc-omap-fixes-for-v4.7' of https://github.com/rogerq/linux:
memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing
+ Linux 4.7-rc3
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omaps for v4.7-rc cycle:
- Fix dra7 for hardware issues limiting L4Per and L3init power domains
to on state. Without this the devices may not work correctly after
some time of use because of asymmetric aging. And related to this,
let's also remove the unusable states.
- Always select omap interconnect for am43x as otherwise the am43x
only configurations will not boot properly. This can happen easily
for any product kernels that leave out other SoCs to save memory.
- Fix DSS PLL2 addresses that have gone unused for now
- Select erratum 430973 for omap3, this is now safe to do and can
save quite a bit of debugging time for people who may have left
it out.
* tag 'omap-for-v4.7/fixes-powedomain' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_mem_ret
ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_logic_ret
ARM: OMAP: DRA7: powerdomain data: Set L3init and L4per to ON
ARM: OMAP2+: Select OMAP_INTERCONNECT for SOC_AM43XX
ARM: dts: DRA74x: fix DSS PLL2 addresses
ARM: OMAP2: Enable Errata 430973 for OMAP3
+ Linux 4.7-rc2
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omaps for v4.7-rc cycle:
- Two boot warning fixes from the RCU tree that should have gotten
merged several weeks ago already but did not because of issues
with who merges them. Paul has now split the RCU warning fixes into
sets for various maintainers.
- Fix ams-delta FIQ regression caused by omap1 sparse IRQ changes
- Fix PM for omap3 boards using timer12 and gptimer, like the
original beagleboard
- Fix hangs on am437x-sk-evm by lowering the I2C bus speed
* tag 'fixes-rcu-fiq-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: am437x-sk-evm: Reduce i2c0 bus speed for tps65218
ARM: OMAP2+: timer: add probe for clocksources
ARM: OMAP1: fix ams-delta FIQ handler to work with sparse IRQ
arm: Use _rcuidle for smp_cross_call() tracepoints
arm: Use _rcuidle tracepoint to allow use from idle
Signed-off-by: Olof Johansson <olof@lixom.net>
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This patch fixes a non-booting issue in Mainline.
When booting with a compressed kernel, we need to be careful how we
populate memory close to DDR start. AUTO_ZRELADDR is enabled by default
in multi-arch enabled configurations, which place some restrictions on
where the kernel is placed and where it will be uncompressed to on boot.
AUTO_ZRELADDR takes the decompressor code's start address and masks out
the bottom 28 bits to obtain an address to uncompress the kernel to
(thus a load address of 0x42000000 means that the kernel will be
uncompressed to 0x40000000 i.e. DDR START on this platform).
Even changing the load address to after the co-processor's shared memory
won't render a booting platform, since the AUTO_ZRELADDR algorithm still
ensures the kernel is uncompressed into memory shared with the first
co-processor (0x40000000).
Another option would be to move loading to 0x4A000000, since this will
mean the decompressor will decompress the kernel to 0x48000000. However,
this would mean a large chunk (0x44000000 => 0x48000000 (64MB)) of
memory would essentially be wasted for no good reason.
Until we can work with ST to find a suitable memory location to
relocate co-processor shared memory, let's disable the shared memory
nodes. This will ensure a working platform in the mean time.
NB: The more observant of you will notice that we're leaving the DMU
shared memory node enabled; this is because a) it is the only one in
active use at the time of this writing and b) it is not affected by
the current default behaviour which is causing issues.
Fixes: fe135c6 (ARM: dts: STiH407: Move over to using the 'reserved-memory' API for obtaining DMA memory)
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
The i.MX fixes for 4.7:
- Correct Micrel PHY mask to fix the issue that i.MX6UL ethernet works
in U-Boot but not in kernel.
* tag 'imx-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx6ul: Fix Micrel PHY mask
Signed-off-by: Olof Johansson <olof@lixom.net>
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Pull ARM fixes from Russell King:
"A couple of fixes for pmd_mknotpresent()/pmd_present() for LPAE
systems"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8579/1: mm: Fix definition of pmd_mknotpresent
ARM: 8578/1: mm: ensure pmd_present only checks the valid bit
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Some Dell machines have especially broken SMM or BIOS which cause that once
fan_type() is called then CPU fan speed going randomly up and down. And for
fixing this behaviour reboot is required.
So this patch creates fan_type blacklist of affected Dell machines and
disallow fan_type() call on them to prevent that erratic behaviour.
Old blacklist which disabled loading driver on some machines added in
commits a4b45b25f18d ("hwmon: (dell-smm) Blacklist Dell Studio XPS 8100")
and 6220f4ebd7b4 ("hwmon: (dell-smm) Blacklist Dell Studio XPS 8000") were
moved to FAN_TYPE blacklist.
Reported-by: Jan C Peters <jcpeters89@gmail.com>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=100121
Cc: stable@vger.kernel.org # v4.0+, will need backport
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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default
For security reasons ordinary user must not be able to control fan speed
via /proc/i8k by default. Some malicious software running under "nobody"
user could be able to turn fan off and cause HW problems. So this patch
changes default value of "restricted" parameter to 1.
Also restrict reading of DMI_PRODUCT_SERIAL from /proc/i8k via "restricted"
parameter. It is because non root user cannot read DMI_PRODUCT_SERIAL from
sysfs file /sys/class/dmi/id/product_serial.
Old non secure behaviour of file /proc/i8k can be achieved by loading this
module with "restricted" parameter set to 0.
Note that this patch has effects only for kernels compiled with CONFIG_I8K
and only for file /proc/i8k. Hwmon interface provided by this driver was
not changed and root access for setting fan speed was needed also before.
Reported-by: Mario Limonciello <Mario_Limonciello@dell.com>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Cc: stable@vger.kernel.org # will need backport
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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number
ABI of I8K_BIOS_VERSION ioctl can return only number. But new BIOS versions
contain also other characters, which does not fit into that ABI. So in case
of non digit values return -EINVAL.
Reported-by: Mario Limonciello <Mario_Limonciello@dell.com>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a bunch (65) of USB fixes for 4.7-rc4. Sorry about the
quantity, I've been slow in getting these out.
The majority are the "normal" gadget, musb, and xhci fixes, that we
all are used to. There are also a few other tiny fixes resolving a
number of reported issues that showed up in 4.7-rc1.
All of these have been in linux-next"
* tag 'usb-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (65 commits)
usbip: rate limit get_frame_number message
usb: musb: sunxi: Remove bogus "Frees glue" comment
usb: musb: sunxi: Fix NULL ptr deref when gadget is registered before musb
usb: echi-hcd: Add ehci_setup check before echi_shutdown
usb: host: ehci-msm: Conditionally call ehci suspend/resume
MAINTAINERS: Add file patterns for usb device tree bindings
usb: host: ehci-tegra: Avoid getting the same reset twice
usb: host: ehci-tegra: Grab the correct UTMI pads reset
USB: mos7720: delete parport
USB: OHCI: Don't mark EDs as ED_OPER if scheduling fails
phy: ti-pipe3: Program the DPLL even if it was already locked
usb: musb: Stop bulk endpoint while queue is rotated
usb: musb: Ensure rx reinit occurs for shared_fifo endpoints
usb: musb: host: correct cppi dma channel for isoch transfer
usb: musb: only restore devctl when session was set in backup
usb: phy: Check initial state for twl6030
usb: musb: Use normal module_init for 2430 glue
usb: musb: Remove pm_runtime_set_irq_safe
usb: musb: Remove extra PM runtime calls from 2430 glue layer
usb: musb: Return error value from musb_mailbox
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull IIO and staging fixes from Greg KH:
"Here are a number of IIO and staging bugfixes for 4.7-rc4.
Nothing huge, the normal amount of iio driver fixes, and some small
staging driver bugfixes for some reported problems (2 are reverts of
patches that went into 4.7-rc1). All have been in linux-next with no
reported issues"
* tag 'staging-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (24 commits)
Revert "Staging: rtl8188eu: rtw_efuse: Use sizeof type *pointer instead of sizeof type."
Revert "Staging: drivers: rtl8188eu: use sizeof(*ptr) instead of sizeof(struct)"
staging: lustre: lnet: Don't access NULL NI on failure path
iio: hudmidity: hdc100x: fix incorrect shifting and scaling
iio: light apds9960: Add the missing dev.parent
iio: Fix error handling in iio_trigger_attach_poll_func
iio: st_sensors: Disable DRDY at init time
iio: st_sensors: Init trigger before irq request
iio: st_sensors: switch to a threaded interrupt
iio: light: bh1780: assign a static name
iio: bh1780: dereference the client properly
iio: humidity: hdc100x: fix IIO_TEMP channel reporting
iio:st_pressure: fix sampling gains (bring inline with ABI)
iio: proximity: as3935: fix buffer stack trashing
iio: proximity: as3935: remove triggered buffer processing
iio: proximity: as3935: correct IIO_CHAN_INFO_RAW output
max44000: Remove scale from proximity
iio: humidity: am2315: Remove a stray unlock
iio: humidity: hdc100x: correct humidity integration time mask
iio: pressure: bmp280: fix error message for wrong chip id
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are a small number of debugfs, ISA, and one driver core fix for
4.7-rc4.
All of these resolve reported issues. The ISA ones have spent the
least amount of time in linux-next, sorry about that, I didn't realize
they were regressions that needed to get in now (thanks to Thorsten
for the prodding!) but they do all pass the 0-day bot tests. The
others have been in linux-next for a while now.
Full details about them are in the shortlog below"
* tag 'driver-core-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
isa: Dummy isa_register_driver should return error code
isa: Call isa_bus_init before dependent ISA bus drivers register
watchdog: ebc-c384_wdt: Allow build for X86_64
iio: stx104: Allow build for X86_64
gpio: Allow PC/104 devices on X86_64
isa: Allow ISA-style drivers on modern systems
base: make module_create_drivers_dir race-free
debugfs: open_proxy_open(): avoid double fops release
debugfs: full_proxy_open(): free proxy on ->open() failure
kernel/kcov: unproxify debugfs file's fops
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a small number of char and misc driver fixes for 4.7-rc4.
They resolve some minor issues that have been reported, and have all
been in linux-next"
* tag 'char-misc-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
coresight: Handle build path error
coresight: Fix erroneous memset in tmc_read_unprepare_etr
coresight: Fix tmc_read_unprepare_etr
coresight: Fix NULL pointer dereference in _coresight_build_path
extcon: palmas: Fix boot up state of VBUS when using GPIO detection
mcb: Acquire reference to carrier module in core
mcb: Acquire reference to device in probe
mei: don't use wake_up_interruptible for wr_ctrl
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"The most user visible change here is a fix for our recent superblock
validation checks that were causing problems on non-4k pagesized
systems"
* 'for-linus-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: btrfs_check_super_valid: Allow 4096 as stripesize
btrfs: remove build fixup for qgroup_account_snapshot
btrfs: use new error message helper in qgroup_account_snapshot
btrfs: avoid blocking open_ctree from cleaner_kthread
Btrfs: don't BUG_ON() in btrfs_orphan_add
btrfs: account for non-CoW'd blocks in btrfs_abort_transaction
Btrfs: check if extent buffer is aligned to sectorsize
btrfs: Use correct format specifier
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Revert a recent ACPICA commit that introduced a suspend-to-RAM
regression on one system due to incorrect information in its ACPI
tables that had not been taken into consideration at all before (and
everything worked), but the commit in question started to use it"
* tag 'acpi-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "ACPICA: ACPI 2.0, Hardware: Add access_width/bit_offset support for acpi_hw_write()"
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Fixes for two recent regressions that may lead to degraded performance
(operating performance points framework, intel_pstate).
Specifics:
- Fix a recent regression in the intel_pstate driver that may lead to
degraded performance on some systems due to missing turbo state
entry in the table returned by the ACPI _PSS object (Srinivas
Pandruvada).
- Fix a recent regression in the OPP (operating performance points)
framework that may lead to degraded performance on some systems
where the OPP table is created too early (Viresh Kumar)"
* tag 'pm-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / OPP: Add 'UNKNOWN' status for shared_opp in struct opp_table
cpufreq: intel_pstate: Adjust _PSS[0] freqeuency if needed
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID subsystem fixes from Jiri Kosina:
- kernel panic fix in hid-elo from Oliver Neukum
- Surface Pro 3 device quirk from Benjamin Tissoires
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: multitouch: Add MT_QUIRK_NOT_SEEN_MEANS_UP to Surface Pro 3
HID: elo: kill not flush the work
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The inline isa_register_driver stub simply allows compilation on systems
with CONFIG_ISA disabled; the dummy isa_register_driver does not
register an isa_driver at all. The inline isa_register_driver should
return -ENODEV to indicate lack of support when attempting to register
an isa_driver on such a system with CONFIG_ISA disabled.
Cc: Matthew Wilcox <matthew@wil.cx>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Tested-by: Ye Xiaolong
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The isa_bus_init function must be called before drivers which utilize
the ISA bus driver are registered. A race condition for initilization
exists if device_initcall is used (the isa_bus_init callback is placed
in the same initcall level as dependent drivers which use module_init).
This patch ensures that isa_bus_init is called first by utilizing
postcore_initcall in favor of device_initcall.
Fixes: a5117ba7da37 ("[PATCH] Driver model: add ISA bus")
Cc: Rene Herman <rene.herman@keyaccess.nl>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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With the introduction of the ISA_BUS_API Kconfig option, ISA-style
drivers may be built for X86_64 architectures. This patch changes the
ISA Kconfig option dependency of the WinSystems EBC-C384 watchdog timer
driver to ISA_BUS_API, thus allowing it to build for X86_64 as it is
expected to.
Cc: Wim Van Sebroeck <wim@iguana.be>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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With the introduction of the ISA_BUS_API Kconfig option, ISA-style
drivers may be built for X86_64 architectures. This patch changes the
ISA Kconfig option dependency of the Apex Embedded Systems STX104 DAC
driver to ISA_BUS_API, thus allowing it to build for X86_64 as it is
expected to.
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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With the introduction of the ISA_BUS_API Kconfig option, ISA-style
drivers may be built for X86_64 architectures. This patch changes the
ISA Kconfig option dependency of the PC/104 drivers to ISA_BUS_API, thus
allowing them to build for X86_64 as they are expected to.
Cc: Alexandre Courbot <gnurou@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Several modern devices, such as PC/104 cards, are expected to run on
modern systems via an ISA bus interface. Since ISA is a legacy interface
for most modern architectures, ISA support should remain disabled in
general. Support for ISA-style drivers should be enabled on a per driver
basis.
To allow ISA-style drivers on modern systems, this patch introduces the
ISA_BUS_API and ISA_BUS Kconfig options. The ISA bus driver will now
build conditionally on the ISA_BUS_API Kconfig option, which defaults to
the legacy ISA Kconfig option. The ISA_BUS Kconfig option allows the
ISA_BUS_API Kconfig option to be selected on architectures which do not
enable ISA (e.g. X86_64).
The ISA_BUS Kconfig option is currently only implemented for X86
architectures. Other architectures may have their own ISA_BUS Kconfig
options added as required.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It's annoying to constantly see the same "Not yet implemented" message
over and over with nothing able to be done about it, so rate limit it
for now to keep user's logs "clean".
Reported-by: Lars Täuber <lars.taeuber@web.de>
Tested-by: Lars Täuber <lars.taeuber@web.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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* acpica-fixes:
Revert "ACPICA: ACPI 2.0, Hardware: Add access_width/bit_offset support for acpi_hw_write()"
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* pm-opp:
PM / OPP: Add 'UNKNOWN' status for shared_opp in struct opp_table
* pm-cpufreq-fixes:
cpufreq: intel_pstate: Adjust _PSS[0] freqeuency if needed
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sizeof type."
This reverts commit b5e12ec38331 ("Staging: rtl8188eu: rtw_efuse: Use
sizeof type *pointer instead of sizeof type.").
This commit is wrong, the rtw_malloc2d helper function takes the size of
the array elements as its 3th argument, whereas sizeof(*eFuseWord)
gives the size of a pointer instead of the size of a u16.
Since sizeof(void *) > sizeof(u16) this has no adverse effects, but it
is still wrong.
Cc: Sandhya Bankar <bankarsandhya512@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit 99aded71b52c ("Staging: drivers: rtl8188eu: use
sizeof(*ptr) instead of sizeof(struct)").
This commit is wrong, as adapt->HalData has a type of "void *", so
now we are allocating a much to small struct, which causes the driver
to overwrite random memory which leads to a non working driver and
various system crashes.
Cc: Jacky Boen <aqiank@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"The main things are getting kgdb up and running with upstream GDB
after a protocol change was reverted and fixing our spin_unlock_wait
and spin_is_locked implementations after doing some similar work with
PeterZ on the qspinlock code last week. Whilst we haven't seen any
failures in practice, it's still worth getting this fixed.
Summary:
- Plug the ongoing spin_unlock_wait/spin_is_locked mess
- KGDB protocol fix to sync w/ GDB
- Fix MIDR-based PMU probing for old 32-bit SMP systems
(OMAP4/Realview)
- Minor tweaks to the fault handling path"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: kgdb: Match pstate size with gdbserver protocol
arm64: spinlock: Ensure forward-progress in spin_unlock_wait
arm64: spinlock: fix spin_unlock_wait for LSE atomics
arm64: spinlock: order spin_{is_locked,unlock_wait} against local locks
arm: pmu: Fix non-devicetree probing
arm64: mm: mark fault_info table const
arm64: fix dump_instr when PAN and UAO are in use
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
"Three patches queued up:
- Fix for ARM-SMMU to add a missing iommu-ops callback which is
required by common iommu code
- Fix for the rockchip iommu where the wrong MMUs got the commands
- A regression fix for the Intel VT-d driver. The regression only
showed up on X58 chipsets with more than one iommu. These chipsets
seem to require that QI is enabled on all IOMMUs before it can be
used"
* tag 'iommu-fixes-v4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/vt-d: Enable QI on all IOMMUs before setting root entry
iommu/rockchip: Fix zap cache during device attach
iommu/arm-smmu: Wire up map_sg for arm-smmu-v3
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git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
Pull LED fixes from Jacek Anaszewski:
- Fix brightness setting upon hardware blinking enabled
- Handle suspend/resume in heartbeat trigger
* tag 'for-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
leds: handle suspend/resume in heartbeat trigger
leds: core: Fix brightness setting upon hardware blinking enabled
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.7
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Older btrfs-progs/mkfs.btrfs sets 4096 as the stripesize. Hence
restricting stripesize to be equal to sectorsize would cause super block
validation to return an error on architectures where PAGE_SIZE is not
equal to 4096.
Hence as a workaround, this commit allows stripesize to be set to 4096
bytes.
Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Introduced in 2c1984f244838477aab ("btrfs: build fixup for
qgroup_account_snapshot") as temporary bisectability build fixup.
Signed-off-by: David Sterba <dsterba@suse.com>
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We've renamed btrfs_std_error, this one is left from last merge.
Signed-off-by: David Sterba <dsterba@suse.com>
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This fixes a problem introduced in commit 2f3165ecf103599f82bf0ea254039db335fb5005
"btrfs: don't force mounts to wait for cleaner_kthread to delete one or more subvolumes".
open_ctree eventually calls btrfs_replay_log which in turn calls
btrfs_commit_super which tries to lock the cleaner_mutex, causing a
recursive mutex deadlock during mount.
Instead of playing whack-a-mole trying to keep up with all the
functions that may want to lock cleaner_mutex, put all the cleaner_mutex
lockers back where they were, and attack the problem more directly:
keep cleaner_kthread asleep until the filesystem is mounted.
When filesystems are mounted read-only and later remounted read-write,
open_ctree did not set fs_info->open and neither does anything else.
Set this flag in btrfs_remount so that neither btrfs_delete_unused_bgs
nor cleaner_kthread get confused by the common case of "/" filesystem
read-only mount followed by read-write remount.
Signed-off-by: Zygo Blaxell <ce3g8jdj@umail.furryterror.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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