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Some Goodix touchscreen controllers, such as for example the GT912,
don't have flash-storage for their firmware.
These models require the OS to load the firmware at runtime, as well as
some other special handling. Add support for this to the goodix driver.
This patch was developed and tested on a Glavey TM800A550L tablet.
Note the "goodix,main-clk" and "firmware-name" device-properties used
by the new code are *not* documented in the
Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
device-tree bindings for now.
Not documenting these is intentional. This is done because this code has
only been tested on x86/ACPI so far, where devicetree is not used.
Instead these properties are set through a software-fwnode attached to the
device by the drivers/platform/x86/touchscreen_dmi.c code. This means that
the use of this properties for now is purely a kernel-internal thing and
the name/working of the properties may still be changed for now.
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210920150643.155872-7-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The config which needs to be send to the controller on some device-models
is model-specific. Allow specifying a model-specific filename through
a device-property, rather then always using a fixed filename.
Note the "goodix,config-name" device-property used by this is
*not* documented in the
Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
device-tree bindings for now.
Not documenting these is intentional. This is done because this code has
only been tested on x86/ACPI so far, where devicetree is not used.
Instead these properties are set through a software-fwnode attached to the
device by the drivers/platform/x86/touchscreen_dmi.c code. This means that
the use of this property for now is purely a kernel-internal thing and
the name/working of the property may still be changed for now.
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210920150643.155872-6-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Make the goodix_i2c_read() and goodix_i2c_write*() helpers log errors
themselves. This allows removing all the error logging from their callers.
This already results in a nice cleanup with the current code and it also
helps to make the upcoming support for controllers without flash cleaner.
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210920150643.155872-5-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Refactor reset handling a bit, change the main reset handler
into a new goodix_reset_no_int_sync() helper and add a
goodix_reset() wrapper which calls goodix_int_sync()
separately.
Also push the dev_err() call on reset failure into the
goodix_reset_no_int_sync() and goodix_int_sync() functions,
so that we don't need to have separate dev_err() calls in
all their callers.
This is a preparation patch for adding support for controllers
without flash, which need to have their firmware uploaded and
need some other special handling too.
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210920150643.155872-4-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add a goodix.h header file, and move the register definitions,
and struct declarations there and add prototypes for various
helper functions.
This is a preparation patch for adding support for controllers
without flash, which need to have their firmware uploaded and
need some other special handling too.
Since MAINTAINERS needs updating because of this change anyways,
also add myself as co-maintainer.
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210920150643.155872-3-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Change the type of the goodix_i2c_write() len parameter to from 'unsigned'
to 'int' to avoid bare use of 'unsigned', changing it to 'int' makes
goodix_i2c_write()' prototype consistent with goodix_i2c_read().
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210920150643.155872-2-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
As noted in the "Deprecated Interfaces, Language Features, Attributes,
and Conventions" documentation [1], size calculations (especially
multiplication) should not be performed in memory allocator (or similar)
function arguments due to the risk of them overflowing. This could lead
to values wrapping around and a smaller allocation being made than the
caller was expecting. Using those allocations could lead to linear
overflows of heap memory and other misbehaviors.
So, use the struct_size() helper to do the arithmetic instead of the
argument "size + count * size" in the kzalloc() function.
[1] https://www.kernel.org/doc/html/v5.14/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments
Signed-off-by: Len Baker <len.baker@gmx.com>
Link: https://lore.kernel.org/r/20210911112716.10067-1-len.baker@gmx.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This simplies the code a lot and fixes some potential resource leaks in
the error return paths.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Link: https://lore.kernel.org/r/20210907200726.2034962-4-daniel@zonque.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The functions in the platform data struct to initialize, cleanup and
apply custom filters are not in use by any mainline board.
Remove support for them to pave the road for more cleanups to come.
The enum was moved as it has no users outside of the driver code
itself.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20210907200726.2034962-3-daniel@zonque.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This will make the code a bit more terse.
No functional change intended.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20210907200726.2034962-2-daniel@zonque.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
platform_get_irq() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add support reading device ID when controller is in bootloader mode, which
may happen if firmware update has been interrupted.
Signed-off-by: simba.hsu <simba.hsu@rad-ic.com>
Link: https://lore.kernel.org/r/20210818063644.8654-1-simba.hsu@rad-ic.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The function cpcap_power_button_probe() does not perform
sufficient error checking after executing platform_get_irq(),
thus fix it.
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20210802121740.8700-1-tangbin@cmss.chinamobile.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
As the ADC ladder input driver does not have any code or data located in
initmem, there is no need to annotate the adc_keys_driver structure with
__refdata. Drop the annotation, to avoid suppressing future section
warnings.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/7091e8213602be64826fd689a7337246d218f3b1.1626255421.git.geert+renesas@glider.be
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This keyboard driver is implementing a GPIO driver, so it need
to include <linux/gpio/driver.h> and not the legacy <linux/gpio.h>
header.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Link: https://lore.kernel.org/r/20210816232707.485031-1-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This keyboard driver is implementing a GPIO driver, so it need
to include <linux/gpio/driver.h> and not the legacy <linux/gpio.h>
header.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210820222958.57238-1-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Convert the TI TSC2004/TSC2005 DT bindings to YAML schema.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210620210708.100147-1-marex@denx.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The LRADC can be a wakeup source and is listed as such in some DT
already. Let's make sure we allow that property in the binding.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210721140424.725744-21-maxime@cerno.tech
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Haptic feedback based on a regulator is supported by Linux thanks to
its device tree binding.
Now that we have the DT validation in place, let's convert the device
tree bindings for that driver over to a YAML schema.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210721140424.725744-19-maxime@cerno.tech
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Pixcir Touchscreen Controller is supported by Linux thanks to
its device tree binding.
Now that we have the DT validation in place, let's convert the device
tree bindings for that driver over to a YAML schema.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210721140424.725744-18-maxime@cerno.tech
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The ChipOne ICN8318 Touchscreen Controller is supported by Linux thanks
to its device tree binding.
Now that we have the DT validation in place, let's convert the device
tree bindings for that driver over to a YAML schema.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210721140424.725744-17-maxime@cerno.tech
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is absolutely no reason to use comma operator in this code, 2
separate statements make much more sense.
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/YPsa1qCBn/SAmE5x@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Convert qcom pm8941 power key binding from .txt to .yaml format.
The example has been removed in favour of full example being
available in the qcom,pon.yaml binding.
Signed-off-by: satya priya <skakit@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1620800053-26405-5-git-send-email-skakit@codeaurora.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Change 'additionalProperties' to true as this is a generic binding.
Signed-off-by: satya priya <skakit@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1620800053-26405-4-git-send-email-skakit@codeaurora.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This reverts commit 81c7c0a350bfe9306ad9fb10356534ede8f4ab31. The idea
to make write method mandatory was flawed as several client drivers
(such as atkbd) check for presence of write() method to adjust behavior
of the driver.
Reported-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Given that all serio drivers except one implement write() method
let's make it mandatory to avoid testing for its presence whenever
we attempt to use it.
Link: https://lore.kernel.org/r/YFgUxG/TljMuVeQ3@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The NSLU2 has been migrated to devicetree and there we use
the gpio-beeper.c driver instead, the boardfile will be deleted
for kernel v5.15 so drop this custom and now unneeded driver.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210714115028.916360-1-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v5.13' into next
Sync up with the mainline to get the latest parport API.
Even though we validate user-provided inputs we then traverse past
validated data when applying the new map. The issue was originally
discovered by Murray McAllister with this simple POC (if the following
is executed by an unprivileged user it will instantly panic the system):
int main(void) {
int fd, ret;
unsigned int buffer[10000];
fd = open("/dev/input/js0", O_RDONLY);
if (fd == -1)
printf("Error opening file\n");
ret = ioctl(fd, JSIOCSBTNMAP & ~IOCSIZE_MASK, &buffer);
printf("%d\n", ret);
}
The solution is to traverse internal buffer which is guaranteed to only
contain valid date when constructing the map.
Fixes: 182d679b2298 ("Input: joydev - prevent potential read overflow in ioctl")
Fixes: 999b874f4aa3 ("Input: joydev - validate axis/button maps before clobbering current ones")
Reported-by: Murray McAllister <murray.mcallister@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Alexander Larkin <avlarkin82@gmail.com>
Link: https://lore.kernel.org/r/20210620120030.1513655-1-avlarkin82@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This reverts commits 4bad58ebc8bc4f20d89cff95417c9b4674769709 (and
399f8dd9a866e107639eabd3c1979cd526ca3a98, which tried to fix it).
I do not believe these are correct, and I'm about to release 5.13, so am
reverting them out of an abundance of caution.
The locking is odd, and appears broken.
On the allocation side (in __sigqueue_alloc()), the locking is somewhat
straightforward: it depends on sighand->siglock. Since one caller
doesn't hold that lock, it further then tests 'sigqueue_flags' to avoid
the case with no locks held.
On the freeing side (in sigqueue_cache_or_free()), there is no locking
at all, and the logic instead depends on 'current' being a single
thread, and not able to race with itself.
To make things more exciting, there's also the data race between freeing
a signal and allocating one, which is handled by using WRITE_ONCE() and
READ_ONCE(), and being mutually exclusive wrt the initial state (ie
freeing will only free if the old state was NULL, while allocating will
obviously only use the value if it was non-NULL, so only one or the
other will actually act on the value).
However, while the free->alloc paths do seem mutually exclusive thanks
to just the data value dependency, it's not clear what the memory
ordering constraints are on it. Could writes from the previous
allocation possibly be delayed and seen by the new allocation later,
causing logical inconsistencies?
So it's all very exciting and unusual.
And in particular, it seems that the freeing side is incorrect in
depending on "current" being single-threaded. Yes, 'current' is a
single thread, but in the presense of asynchronous events even a single
thread can have data races.
And such asynchronous events can and do happen, with interrupts causing
signals to be flushed and thus free'd (for example - sending a
SIGCONT/SIGSTOP can happen from interrupt context, and can flush
previously queued process control signals).
So regardless of all the other questions about the memory ordering and
locking for this new cached allocation, the sigqueue_cache_or_free()
assumptions seem to be fundamentally incorrect.
It may be that people will show me the errors of my ways, and tell me
why this is all safe after all. We can reinstate it if so. But my
current belief is that the WRITE_ONCE() that sets the cached entry needs
to be a smp_store_release(), and the READ_ONCE() that finds a cached
entry needs to be a smp_load_acquire() to handle memory ordering
correctly.
And the sequence in sigqueue_cache_or_free() would need to either use a
lock or at least be interrupt-safe some way (perhaps by using something
like the percpu 'cmpxchg': it doesn't need to be SMP-safe, but like the
percpu operations it needs to be interrupt-safe).
Fixes: 399f8dd9a866 ("signal: Prevent sigqueue caching after task got released")
Fixes: 4bad58ebc8bc ("signal: Allow tasks to cache one sigqueue struct")
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
generic entry.
- Fix potential register clobbering in stack switch helper.
- Fix thread/group masks for offline cpus.
- Fix cleanup of mdev resources when remove callback is invoked in vfio-ap
code.
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Merge tag 's390-5.13-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix a couple of late pt_regs flags handling findings of conversion to
generic entry.
- Fix potential register clobbering in stack switch helper.
- Fix thread/group masks for offline cpus.
- Fix cleanup of mdev resources when remove callback is invoked in
vfio-ap code.
* tag 's390-5.13-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/stack: fix possible register corruption with stack switch helper
s390/topology: clear thread/group maps for offline cpus
s390/vfio-ap: clean up mdev resources when remove callback invoked
s390: clear pt_regs::flags on irq entry
s390: fix system call restart with multiple signals
- Put an fwnode in the errorpath in the SGPIO driver
- Fix the number of GPIO lines per bank in the STM32 driver
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Merge tag 'pinctrl-v5.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Two last-minute fixes:
- Put an fwnode in the errorpath in the SGPIO driver
- Fix the number of GPIO lines per bank in the STM32 driver"
* tag 'pinctrl-v5.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: stm32: fix the reported number of GPIO lines per bank
pinctrl: microchip-sgpio: Put fwnode in error case during ->probe()
Two small fixes, both in upper layer drivers (scsi disk and cdrom).
The sd one is fixing a commit changing revalidation that came from the
block tree a while ago (5.10) and the sr one adds handling of a
condition we didn't previously handle for manually removed media.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two small fixes, both in upper layer drivers (scsi disk and cdrom).
The sd one is fixing a commit changing revalidation that came from the
block tree a while ago (5.10) and the sr one adds handling of a
condition we didn't previously handle for manually removed media"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: sd: Call sd_revalidate_disk() for ioctl(BLKRRPART)
scsi: sr: Return appropriate error code when disk is ejected
Merge misc fixes from Andrew Morton:
"24 patches, based on 4a09d388f2ab382f217a764e6a152b3f614246f6.
Subsystems affected by this patch series: mm (thp, vmalloc, hugetlb,
memory-failure, and pagealloc), nilfs2, kthread, MAINTAINERS, and
mailmap"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (24 commits)
mailmap: add Marek's other e-mail address and identity without diacritics
MAINTAINERS: fix Marek's identity again
mm/page_alloc: do bulk array bounds check after checking populated elements
mm/page_alloc: __alloc_pages_bulk(): do bounds check before accessing array
mm/hwpoison: do not lock page again when me_huge_page() successfully recovers
mm,hwpoison: return -EHWPOISON to denote that the page has already been poisoned
mm/memory-failure: use a mutex to avoid memory_failure() races
mm, futex: fix shared futex pgoff on shmem huge page
kthread: prevent deadlock when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync()
kthread_worker: split code for canceling the delayed work timer
mm/vmalloc: unbreak kasan vmalloc support
KVM: s390: prepare for hugepage vmalloc
mm/vmalloc: add vmalloc_no_huge
nilfs2: fix memory leak in nilfs_sysfs_delete_device_group
mm/thp: another PVMW_SYNC fix in page_vma_mapped_walk()
mm/thp: fix page_vma_mapped_walk() if THP mapped by ptes
mm: page_vma_mapped_walk(): get vma_address_end() earlier
mm: page_vma_mapped_walk(): use goto instead of while (1)
mm: page_vma_mapped_walk(): add a level of indentation
mm: page_vma_mapped_walk(): crossing page table boundary
...
This ioctl request reads from uffdio_continue structure written by
userspace which justifies _IOC_WRITE flag. It also writes back to that
structure which justifies _IOC_READ flag.
See NOTEs in include/uapi/asm-generic/ioctl.h for more information.
Fixes: f619147104c8 ("userfaultfd: add UFFDIO_CONTINUE ioctl")
Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Axel Rasmussen <axelrasmussen@google.com>
Reviewed-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull i2c fixes from Wolfram Sang:
"Three more driver bugfixes and an annotation fix for the core"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: robotfuzz-osif: fix control-request directions
i2c: dev: Add __user annotation
i2c: cp2615: check for allocation failure in cp2615_i2c_recv()
i2c: i801: Ensure that SMBHSTSTS_INUSE_STS is cleared when leaving i801_access
Fix a NULL pointer dereference introduced by a recent commit and
occurring when device_remove_software_node() is used with a device
that has never been registered (Heikki Krogerus).
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Merge tag 'devprop-5.13-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull device properties framework fix from Rafael Wysocki:
"Fix a NULL pointer dereference introduced by a recent commit and
occurring when device_remove_software_node() is used with a device
that has never been registered (Heikki Krogerus)"
* tag 'devprop-5.13-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
software node: Handle software node injection to an existing device properly
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Merge tag 'for-linus-5.13b-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fix from Juergen Gross:
"A fix for a regression introduced in 5.12: when migrating an irq
related to a Xen user event to another cpu, a race might result
in a WARN() triggering"
* tag 'for-linus-5.13b-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/events: reset active flag for lateeoi events later
This is a very small fix that was provided by Nick Piggin and tested
by myself.
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Merge tag 'for-linus-urgent' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"A selftests fix for ARM, and the fix for page reference count
underflow. This is a very small fix that was provided by Nick Piggin
and tested by myself"
* tag 'for-linus-urgent' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: do not allow mapping valid but non-reference-counted pages
KVM: selftests: Fix mapping length truncation in m{,un}map()
- prevent unprivileged userspace from reinitializing supervisor states
- Prepare init_fpstate, which is the buffer used when initializing
FPU state, properly in case the skip-writing-state-components XSAVE*
variants are used.
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Merge tag 'x86_urgent_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
"Two more urgent FPU fixes:
- prevent unprivileged userspace from reinitializing supervisor
states
- prepare init_fpstate, which is the buffer used when initializing
FPU state, properly in case the skip-writing-state-components
XSAVE* variants are used"
* tag 'x86_urgent_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fpu: Make init_fpstate correct with optimized XSAVE
x86/fpu: Preserve supervisor states in sanitize_restored_user_xstate()
