Commit Graph

1440639 Commits

Author SHA1 Message Date
Alain Michaud
64ffa2e5e0 HID: logitech-hidpp: Add support for newer Bluetooth keyboards
Add product IDs (PIDs) for several newer Logitech Bluetooth keyboards
to the hidpp_devices matching table, enabling full HID++ support for
them.

The added keyboards are:
- Logitech Signature K650 & B2B
- Logitech Pebble Keys 2 K380S
- Logitech Casa Pop-Up Desk & B2B
- Logitech Wave Keys & B2B
- Logitech Signature Slim K950 & B2B
- Logitech MX Keys S & B2B
- Logitech Keys-To-Go 2
- Logitech Pop Icon Keys
- Logitech MX Keys Mini & B2B
- Logitech Signature Slim Solar+ K980 B2B
- Logitech Bluetooth Keyboard K250/K251
- Logitech Signature Comfort K880 & B2B

Signed-off-by: Alain Michaud <alainmichaud@google.com>
Reviewed-by: Olivier Gay <ogay@logitech.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 18:16:46 +02:00
Tomasz Pakuła
48d1677779 HID: pidff: Fix integer overflow in pidff_rescale
Rescaling values close to the max (U16_MAX) temporarily creates values
that exceed the s32 range. This caused value overflow in case when, for
example, a periodic effect phase was higer than 180 degrees. In turn,
rescale function could return values outised of the logical range of the
HID field.

Fix by using 64 bit signed integer to store the value during calculation
but still return only 32 bit integer.

Closes: https://github.com/JacKeTUs/universal-pidff/issues/116
Fixes: 224ee88fe3 ("Input: add force feedback driver for PID devices")
Cc: stable@vger.kernel.org
Signed-off-by: Tomasz Pakuła <tomasz.pakula.oficjalny@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 18:13:40 +02:00
Xu Rao
a991aa5e89 HID: i2c-hid: add reset quirk for BLTP7853 touchpad
The BLTP7853 I2C HID touchpad may fail to probe after reboot or
reprobe because reset completion is not signalled to the host. The
driver then waits for the reset-complete interrupt until it times out
and the device probe fails:

  i2c_hid i2c-BLTP7853:00: failed to reset device.
  i2c_hid i2c-BLTP7853:00: can't add hid device: -61
  i2c_hid: probe of i2c-BLTP7853:00 failed with error -61

Add I2C_HID_QUIRK_NO_IRQ_AFTER_RESET for the device so i2c-hid does
not wait for a reset interrupt that may never arrive.

Signed-off-by: Xu Rao <raoxu@uniontech.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 18:11:43 +02:00
Benjamin Tissoires
206342541f HID: core: introduce hid_safe_input_report()
hid_input_report() is used in too many places to have a commit that
doesn't cross subsystem borders. Instead of changing the API, introduce
a new one when things matters in the transport layers:
- usbhid
- i2chid

This effectively revert to the old behavior for those two transport
layers.

Fixes: 0a3fe972a7 ("HID: core: Mitigate potential OOB by removing bogus memset()")
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 18:03:58 +02:00
Benjamin Tissoires
2c85c61d13 HID: pass the buffer size to hid_report_raw_event
commit 0a3fe972a7 ("HID: core: Mitigate potential OOB by removing
bogus memset()") enforced the provided data to be at least the size of
the declared buffer in the report descriptor to prevent a buffer
overflow. However, we can try to be smarter by providing both the buffer
size and the data size, meaning that hid_report_raw_event() can make
better decision whether we should plaining reject the buffer (buffer
overflow attempt) or if we can safely memset it to 0 and pass it to the
rest of the stack.

Fixes: 0a3fe972a7 ("HID: core: Mitigate potential OOB by removing bogus memset()")
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Acked-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 18:03:37 +02:00
Myeonghun Pak
b08665fe80 HID: google: hammer: stop hardware on devres action failure
hammer_probe() starts the HID hardware before registering the devres
action that stops it. If devm_add_action() fails, probe returns an
error with the hardware still started because the cleanup action was
never registered and the driver's remove callback is not called after a
failed probe.

Use devm_add_action_or_reset() so the stop action runs immediately on
registration failure while preserving the existing devres-managed cleanup
path for later probe failures and remove.

Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 18:01:05 +02:00
Sangyun Kim
1654e53349 HID: appletb-kbd: run inactivity autodim from workqueues
The autodim code in hid-appletb-kbd takes backlight_device->ops_lock
via backlight_device_set_brightness() -> mutex_lock() from two
different atomic contexts:

 * appletb_inactivity_timer() is a struct timer_list callback, so it
   runs in softirq context.  Every expiry triggers

     BUG: sleeping function called from invalid context at kernel/locking/mutex.c:591
     Call Trace:
      <IRQ>
      __might_resched
      __mutex_lock
      backlight_device_set_brightness
      appletb_inactivity_timer
      call_timer_fn
      run_timer_softirq

 * reset_inactivity_timer() is called from appletb_kbd_hid_event() and
   appletb_kbd_inp_event().  On real USB hardware these run in
   softirq/IRQ context (URB completion and input-event dispatch).
   When the Touch Bar has already been dimmed or turned off, the
   reset path calls backlight_device_set_brightness() directly to
   restore brightness, producing the same warning.

Both call sites hit the same mutex_lock()-from-atomic bug.  Fix them
together by moving the blocking work onto the system workqueue:

 * Convert the inactivity timer from struct timer_list to
   struct delayed_work; the callback (appletb_inactivity_work) now
   runs in process context where mutex_lock() is legal.
 * Add a dedicated struct work_struct restore_brightness_work and have
   reset_inactivity_timer() schedule it instead of calling
   backlight_device_set_brightness() directly.

Cancel both works synchronously during driver tear-down alongside the
existing backlight reference drop.

The semantics are unchanged (same delays, same state transitions on
dim, turn-off and user activity); only the execution context of the
sleeping call changes.  The timer field and callback are renamed to
match their new type; reset_inactivity_timer() keeps its name because
it is invoked from input event paths that read naturally as "reset
the inactivity timer".

Fixes: 93a0fc4894 ("HID: hid-appletb-kbd: add support for automatic brightness control while using the touchbar")
Cc: stable@vger.kernel.org
Signed-off-by: Sangyun Kim <sangyun.kim@snu.ac.kr>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 17:57:35 +02:00
Sangyun Kim
4db2af9292 HID: appletb-kbd: fix UAF in inactivity-timer cleanup path
Commit 38224c472a ("HID: appletb-kbd: fix slab use-after-free bug in
appletb_kbd_probe") added timer_delete_sync(&kbd->inactivity_timer) to
both the probe close_hw error path and appletb_kbd_remove(), but the
way it was wired in left the inactivity timer reachable during driver
tear-down via two distinct windows.

Window A -- put_device() before timer_delete_sync():

	put_device(&kbd->backlight_dev->dev);
	timer_delete_sync(&kbd->inactivity_timer);

The inactivity_timer softirq reads kbd->backlight_dev and calls
backlight_device_set_brightness() -> mutex_lock(&ops_lock).  If a
concurrent hid_appletb_bl unbind drops the last devm reference
between these two calls, the backlight_device is freed and the
mutex_lock() touches freed memory.

Window B -- backlight cleanup before hid_hw_stop():

	if (kbd->backlight_dev) {
		timer_delete_sync(...);
		put_device(...);
	}
	hid_hw_close(hdev);
	hid_hw_stop(hdev);

Even after Window A is closed, hid_hw_close()/hid_hw_stop() still run
afterwards, so a late ".event" callback from the HID core (USB URB
completion on real Apple hardware) can arrive after
timer_delete_sync() drained the softirq but before put_device() drops
the reference.  That callback reaches reset_inactivity_timer(), which
calls mod_timer() and re-arms the timer.  The freshly re-armed timer
can then fire on the about-to-be-freed backlight_device.

Both windows produce the same KASAN slab-use-after-free:

  BUG: KASAN: slab-use-after-free in __mutex_lock+0x1aab/0x21c0
  Read of size 8 at addr ffff88803ee9a108 by task swapper/0/0
  Call Trace:
   <IRQ>
   __mutex_lock
   backlight_device_set_brightness
   appletb_inactivity_timer
   call_timer_fn
   run_timer_softirq
   handle_softirqs
  Allocated by task N:
   devm_backlight_device_register
   appletb_bl_probe
  Freed by task M:
   (concurrent hid_appletb_bl unbind path)

Close both windows at once by reworking the tear-down in
appletb_kbd_remove() and in the probe close_hw error path so that

 1) hid_hw_close()/hid_hw_stop() run before the backlight cleanup,
    guaranteeing no further .event callback can fire and re-arm the
    timer, and
 2) inside the "if (kbd->backlight_dev)" block, timer_delete_sync()
    runs before put_device(), so the softirq is drained before the
    final reference is dropped.

Fixes: 38224c472a ("HID: appletb-kbd: fix slab use-after-free bug in appletb_kbd_probe")
Cc: stable@vger.kernel.org
Signed-off-by: Sangyun Kim <sangyun.kim@snu.ac.kr>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 17:57:35 +02:00
T.J. Mercier
cac61b58a3 HID: playstation: Clamp num_touch_reports
A device would never lie about the number of touch reports would it?

If it does the loop in dualshock4_parse_report will read off the end of
the touch_reports array, up to about 2 KiB for the maximum number of 256
loop iteraions. The data that is read is emitted via evdev if the
DS4_TOUCH_POINT_INACTIVE bit happens to be set. Protect against this by
clamping the num_touch_reports value provided by the device to the
maximum size of the touch_reports array.

Fixes: 7520382488 ("HID: playstation: add DualShock4 touchpad support.")
Cc: stable@vger.kernel.org
Reported-by: Xingyu Jin <xingyuj@google.com>
Signed-off-by: T.J. Mercier <tjmercier@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 17:54:48 +02:00
Lee Jones
d93ba918a1 HID: magicmouse: Prevent out-of-bounds (OOB) read during DOUBLE_REPORT_ID
It is currently possible for a malicious or misconfigured USB device to
cause an out-of-bounds (OOB) read when submitting reports using
DOUBLE_REPORT_ID by specifying a large report length and providing a
smaller one.

Let's prevent that by comparing the specified report length with the
actual size of the data read in from userspace.  If the actual data
length ends up being smaller than specified, we'll politely warn the
user and prevent any further processing.

Signed-off-by: Lee Jones <lee@kernel.org>
Reviewed-by: Günther Noack <gnoack@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 17:49:18 +02:00
Florian Pradines
f097d24667 HID: mcp2221: fix OOB write in mcp2221_raw_event()
mcp2221_raw_event() copies device-supplied data into mcp->rxbuf at
offset rxbuf_idx without checking that the copy fits within the
destination buffer. A device responding with up to 60 bytes to a
small I2C/SMBus read can overflow the buffer.

Add a rxbuf_size field to struct mcp2221, set it alongside rxbuf in
mcp_i2c_smbus_read(), and check rxbuf_idx + data[3] <= rxbuf_size
before the memcpy.

Reported-by: Benoît Sevens <bsevens@google.com>
Signed-off-by: Florian Pradines <florian.pradines@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 17:48:16 +02:00
Lukas Bulwahn
5f90dcfa8d HID: quirks: really enable the intended work around for appledisplay
Commit c7fabe4ad9 ("HID: quirks: work around VID/PID conflict for
appledisplay") intends to add a quirk for kernels built with Apple Cinema
Display support, but it refers to the non-existing config option
CONFIG_APPLEDISPLAY, whereas the config option for Apple Cinema Display
support is named CONFIG_USB_APPLEDISPLAY.

Refer to the intended config option CONFIG_USB_APPLEDISPLAY in the ifdef
directive.

Fixes: c7fabe4ad9 ("HID: quirks: work around VID/PID conflict for appledisplay")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 17:23:59 +02:00
Oliver Neukum
17ee873dba HID: hid-sjoy: race between init and usage
The driver uses an initial IO to set the device to a default
state. That initialization is currently being done after the device
node has been created. That means that the single buffer used
for output can be altered while IO is in progress.
Move the intialization before announcement to user space.

Fixes: fac733f029 ("HID: force feedback support for SmartJoy PLUS PS2/USB adapter")
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-05-12 17:23:08 +02:00
Takashi Iwai
4873592845 HID: uclogic: Fix regression of input name assignment
The previous fix for adding the devm_kasprintf() return check in the
commit bd07f75120 ("HID: uclogic: Add NULL check in
uclogic_input_configured()") changed the condition of hi->input->name
assignment, and it resulted in missing the proper input device name
when no custom suffix is defined.

Restore the conditional to the original content to address the
regression.

Fixes: bd07f75120 ("HID: uclogic: Add NULL check in uclogic_input_configured()")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28 18:37:01 +02:00
Dan Carpenter
ae4ac07733 HID: intel-thc-hid: Intel-quickspi: Fix some error codes
If we have a partial read that is supposed to be treated as failure but
in this code we forgot to set the error code.  Return -EINVAL.

Fixes: 9d8d51735a ("HID: intel-thc-hid: intel-quickspi: Add HIDSPI protocol implementation")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Even Xu <even.xu@intel.com>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28 18:35:29 +02:00
Matthew Schwartz
3524900cc5 HID: hid-lenovo-go-s: restore OS_TYPE after resume from s2idle
The controller MCU does not persist OS_TYPE across power cycles. During
s2idle resume, the USB device may be power-cycled, causing the OS_TYPE
setting to revert to the default Windows value.

Add a reset_resume callback so that this is correctly restored after
resume.

Fixes: a23f3497bf ("HID: hid-lenovo-go-s: Add Lenovo Legion Go S Series HID Driver")
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28 18:34:21 +02:00
Damien Dejean
55ce185884 HID: elan: Add support for ELAN SB974D touchpad
Elan SB974D touchpad uses ELAN_MT_I2C format to send HID reports. Add an
entry to match for the device and parse its vendor specific format.

Signed-off-by: Damien Dejean <damiendejean@google.com>
Signed-off-by: Kornel Dulęba <korneld@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28 18:30:02 +02:00
Rosalie Wanders
12bd440b66 HID: sony: add missing size validation for Rock Band 3 Pro instruments
This commit adds the missing size validation for Rock Band 3 PS3 Pro
instruments in sony_raw_event(), this prevents a malicious device from
allowing hid-sony to read out of bounds of the provided buffer.

Signed-off-by: Rosalie Wanders <rosalie@mailbox.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28 18:28:32 +02:00
Rosalie Wanders
a4170b63ed HID: sony: add missing size validation for SMK-Link remotes
This commit adds the missing size validation for SMK-Link remotes in
sony_raw_event(), this prevents a malicious device from allowing
hid-sony to read out of bounds of the provided buffer.

I do not own these devices so the size check only forces that the buffer
is large enough for nsg_mrxu_parse_report().

Signed-off-by: Rosalie Wanders <rosalie@mailbox.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28 18:27:26 +02:00
Rosalie Wanders
0f2b8466fb HID: sony: remove unneeded WARN_ON() in sony_leds_init()
This commit removes the unneeded WARN_ON() macro usage in
sony_leds_init(), this is unneeded because the sony_leds_init() function
call is already gated behind a SONY_LED_SUPPORT check in
sony_input_configured()

Signed-off-by: Rosalie Wanders <rosalie@mailbox.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28 18:25:41 +02:00
Michael Zaidman
80c4bbb2b3 HID: ft260: validate i2c input report length
Add two checks to ft260_raw_event() to prevent out-of-bounds reads
from malicious or malfunctioning devices:

First, reject reports shorter than the 2-byte header (report ID +
length fields). Without this, even accessing xfer->length on a
1-byte report is an OOB read.

Second, validate xfer->length against the actual data capacity of
the received HID report. Each I2C data report ID (0xD0 through
0xDE) defines a different report size in the HID descriptor, so the
available payload varies per report. A corrupted length field could
cause memcpy to read beyond the report buffer.

Reported-by: Sebastián Josué Alba Vives <sebasjosue84@gmail.com>
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28 18:24:52 +02:00
Rosalie Wanders
278dd04879 HID: sony: fix incorrect force-feedback check in sony_suspend()
This commit fixes the incorrect force-feedback check in sony_suspend(),
without this the check will always be true due to checking a constant
define that is never 0.

Signed-off-by: Rosalie Wanders <rosalie@mailbox.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-28 18:22:59 +02:00
Linus Torvalds
d97e7d7c30 Merge tag 'hid-for-linus-2026041601' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:
 "Core:
   - fixed handling of 0-sized reports (Dmitry Torokhov)
   - convert core code to __free() (Dmitry Torokhov)
   - support for multiple batteries per HID device (Lucas Zampieri)

  Drivers:
   - support for rumble effects in winwing driver (Ivan Gorinov)
   - new support for a variety of Sony Rock Band and Sony DJ Hero
     Turntable devices (Rosalie Wanders)
   - new driver for Lenovo Legion Go / S devices (Derek J. Clark)
   - power management improvements to intel-thc-hid driver (Even Xu)

  ... other assorted cleanups, fixes and device-specific quirks"

* tag 'hid-for-linus-2026041601' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (73 commits)
  HID: core: clamp report_size in s32ton() to avoid undefined shift
  HID: logitech-dj: fix wrong detection of bad DJ_SHORT output report
  HID: logitech-hidpp: fix race condition when accessing stale stack pointer
  HID: winwing: Enable rumble effects
  HID: core: do not allow parsing 0-sized reports
  HID: usbhid: refactor endpoint lookup
  HID: huawei: fix CD30 keyboard report descriptor issue
  HID: playstation: validate num_touch_reports in DualShock 4 reports
  HID: drop 'default !EXPERT' from tristate symbols
  HID: usbhid: fix deadlock in hid_post_reset()
  HID: apple: ensure the keyboard backlight is off if suspending
  HID: quirks: Set ALWAYS_POLL for LOGITECH_BOLT_RECEIVER
  HID: alps: fix NULL pointer dereference in alps_raw_event()
  HID: logitech-dj: Prevent REPORT_ID_DJ_SHORT related user initiated OOB write
  HID: logitech-dj: Standardise hid_report_enum variable nomenclature
  HID: sony: update module description
  HID: logitech-hidpp: Check bounds when deleting force-feedback effects
  HID: sony: add battery status support for Rock Band 4 PS5 guitars
  HID: sony: fix style issues
  HID: quirks: update hid-sony supported devices
  ...
2026-04-17 11:24:00 -07:00
Linus Torvalds
87768582a4 Merge tag 'dma-mapping-7.1-2026-04-16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
Pull dma-mapping updates from Marek Szyprowski:

 - added support for batched cache sync, what improves performance of
   dma_map/unmap_sg() operations on ARM64 architecture (Barry Song)

 - introduced DMA_ATTR_CC_SHARED attribute for explicitly shared memory
   used in confidential computing (Jiri Pirko)

 - refactored spaghetti-like code in drivers/of/of_reserved_mem.c and
   its clients (Marek Szyprowski, shared branch with device-tree updates
   to avoid merge conflicts)

 - prepared Contiguous Memory Allocator related code for making dma-buf
   drivers modularized (Maxime Ripard)

 - added support for benchmarking dma_map_sg() calls to tools/dma
   utility (Qinxin Xia)

* tag 'dma-mapping-7.1-2026-04-16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux: (24 commits)
  dma-buf: heaps: system: document system_cc_shared heap
  dma-buf: heaps: system: add system_cc_shared heap for explicitly shared memory
  dma-mapping: introduce DMA_ATTR_CC_SHARED for shared memory
  mm: cma: Export cma_alloc(), cma_release() and cma_get_name()
  dma: contiguous: Export dev_get_cma_area()
  dma: contiguous: Make dma_contiguous_default_area static
  dma: contiguous: Make dev_get_cma_area() a proper function
  dma: contiguous: Turn heap registration logic around
  of: reserved_mem: rework fdt_init_reserved_mem_node()
  of: reserved_mem: clarify fdt_scan_reserved_mem*() functions
  of: reserved_mem: rearrange code a bit
  of: reserved_mem: replace CMA quirks by generic methods
  of: reserved_mem: switch to ops based OF_DECLARE()
  of: reserved_mem: use -ENODEV instead of -ENOENT
  of: reserved_mem: remove fdt node from the structure
  dma-mapping: fix false kernel-doc comment marker
  dma-mapping: Support batch mode for dma_direct_{map,unmap}_sg
  dma-mapping: Separate DMA sync issuing and completion waiting
  arm64: Provide dcache_inval_poc_nosync helper
  arm64: Provide dcache_clean_poc_nosync helper
  ...
2026-04-17 11:12:42 -07:00
Linus Torvalds
d662a710c6 Merge tag 'dmaengine-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
 "Core:
   - New devm_of_dma_controller_register() API

  New Support:
   - Support for RZ/G3L SoC
   - Loongson Multi-Channel DMA controller support
   - Conversion of Xilinx AXI DMA binding
   - DW AXI CV1800B DMA support
   - Switchtec DMA engine driver

  Updates:
   - AMD MDB Endpoint and non-LL mode support
   - DW edma virtual IRQ for interrupt-emulation, cyclic transfers support"

* tag 'dmaengine-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (65 commits)
  dmaengine: dw-edma: Add non-LL mode
  dmaengine: dw-edma: Add AMD MDB Endpoint Support
  dt-bindings: dmaengine: Fix spelling mistake "Looongson" -> "Looogson"
  dmaengine: loongson: Fix spelling mistake "Looongson" -> "Looogson"
  dmaengine: loongson: New driver for the Loongson Multi-Channel DMA controller
  dt-bindings: dmaengine: Add Loongson Multi-Channel DMA controller
  dmaengine: loongson: loongson2-apb: Simplify locking with guard() and scoped_guard()
  dmaengine: loongson: loongson2-apb: Convert to devm_clk_get_enabled()
  dmaengine: loongson: loongson2-apb: Convert to dmaenginem_async_device_register()
  dmaengine: loongson: New directory for Loongson DMA controllers drivers
  dt-bindings: dma: xlnx,axi-dma: Convert to DT schema
  dt-bindings: dma: rz-dmac: Add conditional schema for RZ/G3L
  dmaengine: sh: rz-dmac: Add device_{pause,resume}() callbacks
  dmaengine: sh: rz-dmac: Add device_tx_status() callback
  dmaengine: sh: rz-dmac: Use rz_lmdesc_setup() to invalidate descriptors
  dmaengine: sh: rz-dmac: Drop unnecessary local_irq_save() call
  dmaengine: sh: rz-dmac: Drop goto instruction and label
  dmaengine: sh: rz-dmac: Drop read of CHCTRL register
  dmaengine: sh: rz_dmac: add RZ/{T2H,N2H} support
  dt-bindings: dma: renesas,rz-dmac: document RZ/{T2H,N2H}
  ...
2026-04-17 10:29:01 -07:00
Linus Torvalds
3f887edd35 Merge tag 'phy-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy updates from Vinod Koul:
 "New Support:
   - Qualcomm Eliza QMP UFS PHY
   - Canaan K230 USB 2.0 PHY driver
   - Mediatek mt8167 dsi-phy
   - Eswin EIC7700 SATA PHY driver

  Updates:
   - Sorted subsytem Makefile/Kconfig and some kernel-doc udpates"

* tag 'phy-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
  dt-bindings: phy: qcom,sc8280xp-qmp-ufs-phy: document the Eliza QMP UFS PHY
  phy: qcom: m31-eusb2: clear PLL_EN during init
  phy: eswin: Create eswin directory and add EIC7700 SATA PHY driver
  dt-bindings: phy: eswin: Document the EIC7700 SoC SATA PHY
  phy: apple: apple: Use local variable for ioremap return value
  phy: qcom: qmp-usbc: Simplify check for non-NULL pointer
  phy: marvell: mmp3-hsic: Avoid re-casting __iomem
  phy: apple: atc: Make atcphy_dwc3_reset_ops variable static
  dt-bindings: phy: mediatek,dsi-phy: Add support for mt8167
  phy: usb: Add driver for Canaan K230 USB 2.0 PHY
  dt-bindings: phy: Add Canaan K230 USB PHY
  phy: phy-mtk-tphy: Update names and format of kernel-doc comments
  phy: Sort the subsystem Kconfig
  phy: Sort the subsystem Makefile
  phy: move spacemit pcie driver to its subfolder
2026-04-17 10:22:08 -07:00
Linus Torvalds
65bec0c4ea Merge tag 'soundwire-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
Pull soundwire updates from Vinod Koul:

 - Core: DP prepare polling for avoiding interrupt deadlock

 - AMD clock init and bandwidth refactoring

 - Intel more codecs to wake list, clear message on before signaling
   waiting thread

* tag 'soundwire-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: intel_auxdevice: Add cs42l49 to wake_capable_list
  soundwire: cadence: Clear message complete before signaling waiting thread
  soundwire: Intel: test bus.bpt_stream before assigning it
  soundwire: bus: demote UNATTACHED state warnings to dev_dbg()
  soundwire: stream: Poll for DP prepare to avoid interrupt deadlock
  soundwire: amd: refactor bandwidth calculation logic
  soundwire: amd: add clock init control function
  soundwire: intel_auxdevice: Add CS47L47 to wake_capable_list
  soundwire: slave: Don't register devices that are disabled in ACPI
  soundwire: sdw.h: repair names and format of kernel-doc comments
2026-04-17 10:16:53 -07:00
Linus Torvalds
0b6bc3dbe6 Merge tag 'trace-latency-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing latency update from Steven Rostedt:

 - Add TIMERLAT_ALIGN osnoise option

   Add a timer alignment option for timerlat that makes it work like the
   cyclictest -A option. timelat creates threads to test the latency of
   the kernel. The alignment option will have these threads trigger at
   the alignment offsets from each other. Instead of having each thread
   wake up at the exact same time, if the alignment is set to "20" each
   thread will wake up at 20 microseconds from the previous one.

* tag 'trace-latency-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing/osnoise: Add option to align tlat threads
2026-04-17 10:12:11 -07:00
Linus Torvalds
cb30bf881c Merge tag 'trace-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing updates from Steven Rostedt:

 - Fix printf format warning for bprintf

   sunrpc uses a trace_printk() that triggers a printf warning during
   the compile. Move the __printf() attribute around for when debugging
   is not enabled the warning will go away

 - Remove redundant check for EVENT_FILE_FL_FREED in
   event_filter_write()

   The FREED flag is checked in the call to event_file_file() and then
   checked again right afterward, which is unneeded

 - Clean up event_file_file() and event_file_data() helpers

   These helper functions played a different role in the past, but now
   with eventfs, the READ_ONCE() isn't needed. Simplify the code a bit
   and also add a warning to event_file_data() if the file or its data
   is not present

 - Remove updating file->private_data in tracing open

   All access to the file private data is handled by the helper
   functions, which do not use file->private_data. Stop updating it on
   open

 - Show ENUM names in function arguments via BTF in function tracing

   When showing the function arguments when func-args option is set for
   function tracing, if one of the arguments is found to be an enum,
   show the name of the enum instead of its number

 - Add new trace_call__##name() API for tracepoints

   Tracepoints are enabled via static_branch() blocks, where when not
   enabled, there's only a nop that is in the code where the execution
   will just skip over it. When tracing is enabled, the nop is converted
   to a direct jump to the tracepoint code. Sometimes more calculations
   are required to be performed to update the parameters of the
   tracepoint. In this case, trace_##name##_enabled() is called which is
   a static_branch() that gets enabled only when the tracepoint is
   enabled. This allows the extra calculations to also be skipped by the
   nop:

	if (trace_foo_enabled()) {
		x = bar();
		trace_foo(x);
	}

   Where the x=bar() is only performed when foo is enabled. The problem
   with this approach is that there's now two static_branch() calls. One
   for checking if the tracepoint is enabled, and then again to know if
   the tracepoint should be called. The second one is redundant

   Introduce trace_call__foo() that will call the foo() tracepoint
   directly without doing a static_branch():

	if (trace_foo_enabled()) {
		x = bar();
		trace_call__foo();
	}

 - Update various locations to use the new trace_call__##name() API

 - Move snapshot code out of trace.c

   Cleaning up trace.c to not be a "dump all", move the snapshot code
   out of it and into a new trace_snapshot.c file

 - Clean up some "%*.s" to "%*s"

 - Allow boot kernel command line options to be called multiple times

   Have options like:

	ftrace_filter=foo ftrace_filter=bar ftrace_filter=zoo

   Equal to:

	ftrace_filter=foo,bar,zoo

 - Fix ipi_raise event CPU field to be a CPU field

   The ipi_raise target_cpus field is defined as a __bitmask(). There is
   now a __cpumask() field definition. Update the field to use that

 - Have hist_field_name() use a snprintf() and not a series of strcat()

   It's safer to use snprintf() that a series of strcat()

 - Fix tracepoint regfunc balancing

   A tracepoint can define a "reg" and "unreg" function that gets called
   before the tracepoint is enabled, and after it is disabled
   respectively. But on error, after the "reg" func is called and the
   tracepoint is not enabled, the "unreg" function is not called to tear
   down what the "reg" function performed

 - Fix output that shows what histograms are enabled

   Event variables are displayed incorrectly in the histogram output

   Instead of "sched.sched_wakeup.$var", it is showing
   "$sched.sched_wakeup.var" where the '$' is in the incorrect location

 - Some other simple cleanups

* tag 'trace-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (24 commits)
  selftests/ftrace: Add test case for fully-qualified variable references
  tracing: Fix fully-qualified variable reference printing in histograms
  tracepoint: balance regfunc() on func_add() failure in tracepoint_add_func()
  tracing: Rebuild full_name on each hist_field_name() call
  tracing: Report ipi_raise target CPUs as cpumask
  tracing: Remove duplicate latency_fsnotify() stub
  tracing: Preserve repeated trace_trigger boot parameters
  tracing: Append repeated boot-time tracing parameters
  tracing: Remove spurious default precision from show_event_trigger/filter formats
  cpufreq: Use trace_call__##name() at guarded tracepoint call sites
  tracing: Remove tracing_alloc_snapshot() when snapshot isn't defined
  tracing: Move snapshot code out of trace.c and into trace_snapshot.c
  mm: damon: Use trace_call__##name() at guarded tracepoint call sites
  btrfs: Use trace_call__##name() at guarded tracepoint call sites
  spi: Use trace_call__##name() at guarded tracepoint call sites
  i2c: Use trace_call__##name() at guarded tracepoint call sites
  kernel: Use trace_call__##name() at guarded tracepoint call sites
  tracepoint: Add trace_call__##name() API
  tracing: trace_mmap.h: fix a kernel-doc warning
  tracing: Pretty-print enum parameters in function arguments
  ...
2026-04-17 09:43:12 -07:00
Linus Torvalds
c9e03d5948 Merge tag 'probes-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull fprobe update from Masami Hiramatsu:

 - do not zero out unused fgraph_data. This removes unneeded memset of
   fgraph_data in fprobe entry handler.

* tag 'probes-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: fprobe: do not zero out unused fgraph_data
2026-04-17 09:18:32 -07:00
Linus Torvalds
829000f789 Merge tag 'bootconfig-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull bootconfig updates from Masami Hiramatsu:
 "Minor fixes for handling errors:
   - fix off-by-one in xbc_verify_tree() next node check
   - increment xbc_node_num after node init succeeds
   - validate child node index in xbc_verify_tree()

  Code cleanups (mainly type/attribute changes):
   - clean up comment typos and bracing
   - drop redundant memset of xbc_nodes
   - replace linux/kernel.h with specific includes
   - narrow flag parameter type from uint32_t to uint16_t
   - constify xbc_calc_checksum() data parameter
   - fix signed comparison in xbc_node_get_data()
   - use size_t for strlen result in xbc_node_match_prefix()
   - use signed type for offset in xbc_init_node()
   - use size_t for key length tracking in xbc_verify_tree()
   - change xbc_node_index() return type to uint16_t"

* tag 'bootconfig-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  lib/bootconfig: change xbc_node_index() return type to uint16_t
  lib/bootconfig: use size_t for key length tracking in xbc_verify_tree()
  lib/bootconfig: use signed type for offset in xbc_init_node()
  lib/bootconfig: use size_t for strlen result in xbc_node_match_prefix()
  lib/bootconfig: fix signed comparison in xbc_node_get_data()
  lib/bootconfig: validate child node index in xbc_verify_tree()
  lib/bootconfig: replace linux/kernel.h with specific includes
  bootconfig: constify xbc_calc_checksum() data parameter
  lib/bootconfig: drop redundant memset of xbc_nodes
  lib/bootconfig: increment xbc_node_num after node init succeeds
  lib/bootconfig: fix off-by-one in xbc_verify_tree() next node check
  lib/bootconfig: narrow flag parameter type from uint32_t to uint16_t
  lib/bootconfig: clean up comment typos and bracing
2026-04-17 09:14:07 -07:00
Linus Torvalds
d730905bc3 Merge tag 'mips_7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Thomas Bogendoerfer:

 - Support for Mobileye EyeQ6Lplus

 - Cleanups and fixes

* tag 'mips_7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (30 commits)
  MIPS/mtd: Handle READY GPIO in generic NAND platform data
  MIPS/input: Move RB532 button to GPIO descriptors
  MIPS: validate DT bootargs before appending them
  MIPS: Alchemy: Remove unused forward declaration
  MAINTAINERS: Mobileye: Add EyeQ6Lplus files
  MIPS: config: add eyeq6lplus_defconfig
  MIPS: Add Mobileye EyeQ6Lplus evaluation board dts
  MIPS: Add Mobileye EyeQ6Lplus SoC dtsi
  clk: eyeq: Add Mobileye EyeQ6Lplus OLB
  clk: eyeq: Adjust PLL accuracy computation
  clk: eyeq: Skip post-divisor when computing PLL frequency
  pinctrl: eyeq5: Add Mobileye EyeQ6Lplus OLB
  pinctrl: eyeq5: Use match data
  reset: eyeq: Add Mobileye EyeQ6Lplus OLB
  MIPS: Add Mobileye EyeQ6Lplus support
  dt-bindings: soc: mobileye: Add EyeQ6Lplus OLB
  dt-bindings: mips: Add Mobileye EyeQ6Lplus SoC
  MIPS: dts: loongson64g-package: Switch to Loongson UART driver
  mips: pci-mt7620: rework initialization procedure
  mips: pci-mt7620: add more register init values
  ...
2026-04-17 08:53:23 -07:00
Linus Torvalds
a10e80be63 Merge tag 'alpha-for-v7.1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha
Pull alpha updates from Magnus Lindholm:
 "One fix to silence pgprot_modify() compiler warnings, and one patch
  adding SECCOMP/SECCOMP_FILTER support together with the syscall and
  ptrace fixes needed for it"

* tag 'alpha-for-v7.1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha:
  alpha: Define pgprot_modify to silence tautological comparison warnings
  alpha: add support for SECCOMP and SECCOMP_FILTER
2026-04-17 08:34:43 -07:00
Linus Torvalds
01f492e181 Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
 "Arm:

   - Add support for tracing in the standalone EL2 hypervisor code,
     which should help both debugging and performance analysis. This
     uses the new infrastructure for 'remote' trace buffers that can be
     exposed by non-kernel entities such as firmware, and which came
     through the tracing tree

   - Add support for GICv5 Per Processor Interrupts (PPIs), as the
     starting point for supporting the new GIC architecture in KVM

   - Finally add support for pKVM protected guests, where pages are
     unmapped from the host as they are faulted into the guest and can
     be shared back from the guest using pKVM hypercalls. Protected
     guests are created using a new machine type identifier. As the
     elusive guestmem has not yet delivered on its promises, anonymous
     memory is also supported

     This is only a first step towards full isolation from the host; for
     example, the CPU register state and DMA accesses are not yet
     isolated. Because this does not really yet bring fully what it
     promises, it is hidden behind CONFIG_ARM_PKVM_GUEST +
     'kvm-arm.mode=protected', and also triggers TAINT_USER when a VM is
     created. Caveat emptor

   - Rework the dreaded user_mem_abort() function to make it more
     maintainable, reducing the amount of state being exposed to the
     various helpers and rendering a substantial amount of state
     immutable

   - Expand the Stage-2 page table dumper to support NV shadow page
     tables on a per-VM basis

   - Tidy up the pKVM PSCI proxy code to be slightly less hard to
     follow

   - Fix both SPE and TRBE in non-VHE configurations so that they do not
     generate spurious, out of context table walks that ultimately lead
     to very bad HW lockups

   - A small set of patches fixing the Stage-2 MMU freeing in error
     cases

   - Tighten-up accepted SMC immediate value to be only #0 for host
     SMCCC calls

   - The usual cleanups and other selftest churn

  LoongArch:

   - Use CSR_CRMD_PLV for kvm_arch_vcpu_in_kernel()

   - Add DMSINTC irqchip in kernel support

  RISC-V:

   - Fix steal time shared memory alignment checks

   - Fix vector context allocation leak

   - Fix array out-of-bounds in pmu_ctr_read() and pmu_fw_ctr_read_hi()

   - Fix double-free of sdata in kvm_pmu_clear_snapshot_area()

   - Fix integer overflow in kvm_pmu_validate_counter_mask()

   - Fix shift-out-of-bounds in make_xfence_request()

   - Fix lost write protection on huge pages during dirty logging

   - Split huge pages during fault handling for dirty logging

   - Skip CSR restore if VCPU is reloaded on the same core

   - Implement kvm_arch_has_default_irqchip() for KVM selftests

   - Factored-out ISA checks into separate sources

   - Added hideleg to struct kvm_vcpu_config

   - Factored-out VCPU config into separate sources

   - Support configuration of per-VM HGATP mode from KVM user space

  s390:

   - Support for ESA (31-bit) guests inside nested hypervisors

   - Remove restriction on memslot alignment, which is not needed
     anymore with the new gmap code

   - Fix LPSW/E to update the bear (which of course is the breaking
     event address register)

  x86:

   - Shut up various UBSAN warnings on reading module parameter before
     they were initialized

   - Don't zero-allocate page tables that are used for splitting
     hugepages in the TDP MMU, as KVM is guaranteed to set all SPTEs in
     the page table and thus write all bytes

   - As an optimization, bail early when trying to unsync 4KiB mappings
     if the target gfn can just be mapped with a 2MiB hugepage

  x86 generic:

   - Copy single-chunk MMIO write values into struct kvm_vcpu (more
     precisely struct kvm_mmio_fragment) to fix use-after-free stack
     bugs where KVM would dereference stack pointer after an exit to
     userspace

   - Clean up and comment the emulated MMIO code to try to make it
     easier to maintain (not necessarily "easy", but "easier")

   - Move VMXON+VMXOFF and EFER.SVME toggling out of KVM (not *all* of
     VMX and SVM enabling) as it is needed for trusted I/O

   - Advertise support for AVX512 Bit Matrix Multiply (BMM) instructions

   - Immediately fail the build if a required #define is missing in one
     of KVM's headers that is included multiple times

   - Reject SET_GUEST_DEBUG with -EBUSY if there's an already injected
     exception, mostly to prevent syzkaller from abusing the uAPI to
     trigger WARNs, but also because it can help prevent userspace from
     unintentionally crashing the VM

   - Exempt SMM from CPUID faulting on Intel, as per the spec

   - Misc hardening and cleanup changes

  x86 (AMD):

   - Fix and optimize IRQ window inhibit handling for AVIC; make it
     per-vCPU so that KVM doesn't prematurely re-enable AVIC if multiple
     vCPUs have to-be-injected IRQs

   - Clean up and optimize the OSVW handling, avoiding a bug in which
     KVM would overwrite state when enabling virtualization on multiple
     CPUs in parallel. This should not be a problem because OSVW should
     usually be the same for all CPUs

   - Drop a WARN in KVM_MEMORY_ENCRYPT_REG_REGION where KVM complains
     about a "too large" size based purely on user input

   - Clean up and harden the pinning code for KVM_MEMORY_ENCRYPT_REG_REGION

   - Disallow synchronizing a VMSA of an already-launched/encrypted
     vCPU, as doing so for an SNP guest will crash the host due to an
     RMP violation page fault

   - Overhaul KVM's APIs for detecting SEV+ guests so that VM-scoped
     queries are required to hold kvm->lock, and enforce it by lockdep.
     Fix various bugs where sev_guest() was not ensured to be stable for
     the whole duration of a function or ioctl

   - Convert a pile of kvm->lock SEV code to guard()

   - Play nicer with userspace that does not enable
     KVM_CAP_EXCEPTION_PAYLOAD, for which KVM needs to set CR2 and DR6
     as a response to ioctls such as KVM_GET_VCPU_EVENTS (even if the
     payload would end up in EXITINFO2 rather than CR2, for example).
     Only set CR2 and DR6 when consumption of the payload is imminent,
     but on the other hand force delivery of the payload in all paths
     where userspace retrieves CR2 or DR6

   - Use vcpu->arch.cr2 when updating vmcb12's CR2 on nested #VMEXIT
     instead of vmcb02->save.cr2. The value is out of sync after a
     save/restore or after a #PF is injected into L2

   - Fix a class of nSVM bugs where some fields written by the CPU are
     not synchronized from vmcb02 to cached vmcb12 after VMRUN, and so
     are not up-to-date when saved by KVM_GET_NESTED_STATE

   - Fix a class of bugs where the ordering between KVM_SET_NESTED_STATE
     and KVM_SET_{S}REGS could cause vmcb02 to be incorrectly
     initialized after save+restore

   - Add a variety of missing nSVM consistency checks

   - Fix several bugs where KVM failed to correctly update VMCB fields
     on nested #VMEXIT

   - Fix several bugs where KVM failed to correctly synthesize #UD or
     #GP for SVM-related instructions

   - Add support for save+restore of virtualized LBRs (on SVM)

   - Refactor various helpers and macros to improve clarity and
     (hopefully) make the code easier to maintain

   - Aggressively sanitize fields when copying from vmcb12, to guard
     against unintentionally allowing L1 to utilize yet-to-be-defined
     features

   - Fix several bugs where KVM botched rAX legality checks when
     emulating SVM instructions. There are remaining issues in that KVM
     doesn't handle size prefix overrides for 64-bit guests

   - Fail emulation of VMRUN/VMLOAD/VMSAVE if mapping vmcb12 fails
     instead of somewhat arbitrarily synthesizing #GP (i.e. don't double
     down on AMD's architectural but sketchy behavior of generating #GP
     for "unsupported" addresses)

   - Cache all used vmcb12 fields to further harden against TOCTOU bugs

  x86 (Intel):

   - Drop obsolete branch hint prefixes from the VMX instruction macros

   - Use ASM_INPUT_RM() in __vmcs_writel() to coerce clang into using a
     register input when appropriate

   - Code cleanups

  guest_memfd:

   - Don't mark guest_memfd folios as accessed, as guest_memfd doesn't
     support reclaim, the memory is unevictable, and there is no storage
     to write back to

  LoongArch selftests:

   - Add KVM PMU test cases

  s390 selftests:

   - Enable more memory selftests

  x86 selftests:

   - Add support for Hygon CPUs in KVM selftests

   - Fix a bug in the MSR test where it would get false failures on
     AMD/Hygon CPUs with exactly one of RDPID or RDTSCP

   - Add an MADV_COLLAPSE testcase for guest_memfd as a regression test
     for a bug where the kernel would attempt to collapse guest_memfd
     folios against KVM's will"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (373 commits)
  KVM: x86: use inlines instead of macros for is_sev_*guest
  x86/virt: Treat SVM as unsupported when running as an SEV+ guest
  KVM: SEV: Goto an existing error label if charging misc_cg for an ASID fails
  KVM: SVM: Move lock-protected allocation of SEV ASID into a separate helper
  KVM: SEV: use mutex guard in snp_handle_guest_req()
  KVM: SEV: use mutex guard in sev_mem_enc_unregister_region()
  KVM: SEV: use mutex guard in sev_mem_enc_ioctl()
  KVM: SEV: use mutex guard in snp_launch_update()
  KVM: SEV: Assert that kvm->lock is held when querying SEV+ support
  KVM: SEV: Document that checking for SEV+ guests when reclaiming memory is "safe"
  KVM: SEV: Hide "struct kvm_sev_info" behind CONFIG_KVM_AMD_SEV=y
  KVM: SEV: WARN on unhandled VM type when initializing VM
  KVM: LoongArch: selftests: Add PMU overflow interrupt test
  KVM: LoongArch: selftests: Add basic PMU event counting test
  KVM: LoongArch: selftests: Add cpucfg read/write helpers
  LoongArch: KVM: Add DMSINTC inject msi to vCPU
  LoongArch: KVM: Add DMSINTC device support
  LoongArch: KVM: Make vcpu_is_preempted() as a macro rather than function
  LoongArch: KVM: Move host CSR_GSTAT save and restore in context switch
  LoongArch: KVM: Move host CSR_EENTRY save and restore in context switch
  ...
2026-04-17 07:18:03 -07:00
Borislav Petkov (AMD)
e55d98e775 x86/CPU: Fix FPDSS on Zen1
Zen1's hardware divider can leave, under certain circumstances, partial
results from previous operations.  Those results can be leaked by
another, attacker thread.

Fix that with a chicken bit.

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-04-17 06:04:42 -07:00
Linus Torvalds
43cfbdda5a Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd updates from Jason Gunthorpe:
 "Several fixes:

   - Add missing static const

   - Correct type 1 emulation for VFIO_CHECK_EXTENSION when no-iommu is
     turned on

   - Fix selftest memory leak and syzkaller splat

   - Fix missed -EFAULT in fault reporting write() fops

   - Fix a race where map/unmap with the internal IOVA allocator can
     unmap things it should not"

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
  iommufd: Fix a race with concurrent allocation and unmap
  iommufd/selftest: Remove MOCK_IOMMUPT_AMDV1 format
  iommufd: Fix return value of iommufd_fault_fops_write()
  iommufd: update outdated comment for renamed iommufd_hw_pagetable_alloc()
  iommufd/selftest: Fix page leaks in mock_viommu_{init,destroy}
  iommufd: vfio compatibility extension check for noiommu mode
  iommufd: Constify struct dma_buf_attach_ops
2026-04-16 21:21:55 -07:00
Linus Torvalds
87fe97a184 Merge tag 'for-linus-fwctl' of git://git.kernel.org/pub/scm/linux/kernel/git/fwctl/fwctl
Pull fwctl updates from Jason Gunthorpe:

 - New fwctl driver for Broadcom RDMA NICs

 - Bug fix for non-modular builds

* tag 'for-linus-fwctl' of git://git.kernel.org/pub/scm/linux/kernel/git/fwctl/fwctl:
  fwctl: Fix class init ordering to avoid NULL pointer dereference on device removal
  fwctl/bnxt_fwctl: Add documentation entries
  fwctl/bnxt_fwctl: Add bnxt fwctl device
  fwctl/bnxt_en: Create an aux device for fwctl
  fwctl/bnxt_en: Refactor aux bus functions to be more generic
  fwctl/bnxt_en: Move common definitions to include/linux/bnxt/
2026-04-16 21:15:56 -07:00
Linus Torvalds
8242c709d4 Merge tag 'soc-arm-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC ARM code updates from Arnd Bergmann:
 "These are again very minimal updates:

   - A workaround for firmware on Google Nexus 10

   - A fix for early debugging on OMAP1

   - A rework for Microchip SoC configuration

   - Cleanups on OMAP2 an R-Car-Gen2"

* tag 'soc-arm-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: omap2: dead code cleanup in kconfig for ARCH_OMAP4
  ARM: OMAP1: Fix DEBUG_LL and earlyprintk on OMAP16XX
  arm64: Kconfig: provide a top-level switch for Microchip platforms
  ARM: shmobile: rcar-gen2: Use of_phandle_args_equal() helper
  ARM: omap: fix all kernel-doc warnings
  ARM: omap2: Replace scnprintf with strscpy in omap3_cpuinfo
  ARM: samsung: exynos5250: Allow CPU1 to boot
2026-04-16 20:45:14 -07:00
Linus Torvalds
231d703058 Merge tag 'soc-defconfig-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC defconfig updates from Arnd Bergmann:
 "As usual, we enable a number of additional device drivers as loadable
  modules, to support the added platforms. The largest change this time
  is for OMAP2/3, which were not that well supported in the generic
  arm32 defconfig.

  The Tegra SoC platforms are now enabled by default in Kconfig when
  ARCH_TEGRA is enabled, which means the defconfig change is done at the
  same time as the Kconfig change here"

* tag 'soc-defconfig-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (25 commits)
  arch/arm: Drop CONFIG_FIRMWARE_EDID from defconfig files
  arm64: defconfig: Enable DP83TG720 PHY driver
  arm64: tegra: defconfig: Drop redundant ARCH_TEGRA_foo_SOC
  ARM: tegra: defconfig: Drop redundant ARCH_TEGRA_foo_SOC
  arm64: defconfig: enable pci-pwrctrl-generic as module
  arm64: defconfig: Enable Lontium LT8713sx driver
  arm64: defconfig: Enable Qualcomm Eliza SoC display clock controller
  arm64: defconfig: enable IPQ5210 RDP504 base configs
  arm64: defconfig: Enable Milos LPASS LPI pinctrl driver
  arm64: defconfig: Enable Kaanapali clock controllers
  arm64: defconfig: Enable configs for Arduino VENTUNO Q
  arm64: defconfig: Enable Qualcomm Eliza basic resource providers
  arm64: defconfig: Enable S5KJN1 camera sensor
  arm64: defconfig: Enable configurations for Toradex Aquila AM69
  arm64: defconfig: remove SENSORS_SA67MCU
  arm64: defconfig: Enable Qualcomm WCD937x headphone codec as module
  arm64: defconfig: Enable QCOMTEE module for QTEE-enabled Qualcomm SoCs
  ARM: shmobile: defconfig: Refresh for v7.0-rc1
  arm: multi_v7_defconfig: Enable more OMAP 3/4 related configs
  ARM: multi_v7_defconfig: omap2plus_defconfig: Enable ITE IT66121 driver
  ...
2026-04-16 20:40:20 -07:00
Linus Torvalds
31b43c079f Merge tag 'soc-drivers-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
 "The driver updates again are all over the place with many minor fixes
  going into platform specific code. The most notable changes are:

   - Support for Microchip pic64gx system controllers
   - Work on cleaning up devicetree bindings for SoC drivers, and
     converting them into the new format
   - Lots of smaller changes for Qualcomm SoC drivers, including support
     for a number of newly supported chips
   - reset controller API cleanups and a new driver for Cix Sky1
   - Reworks of the Tegra PMC and CBB drivers, along with a change to
     how individual Tegra SoCs get selected in Kconfig and BPMP firmware
     driver updates including a refresh of the ABI header to match the
     version used by firmware
   - STM32 updates to the firewall bus driver and support for the debug
     bus through OP-TEE
   - SCMI firmware driver improvements for reliability, in particular
     for dealing with broken firmware interrupts
   - Memory driver updates for Tegra, and a patch to remove the unused
     Baikal T1 driver"

* tag 'soc-drivers-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (193 commits)
  firmware: arm_ffa: Use the correct buffer size during RXTX_MAP
  firmware: qcom: scm: Allow QSEECOM on Lenovo IdeaCentre Mini X
  clk: spear: fix resource leak in clk_register_vco_pll()
  reset: rzv2h-usb2phy: Add support for VBUS mux controller registration
  reset: rzv2h-usb2phy: Convert to regmap API
  dt-bindings: reset: renesas,rzv2h-usb2phy: Document RZ/G3E USB2PHY reset
  dt-bindings: reset: renesas,rzv2h-usb2phy: Add '#mux-state-cells' property
  soc: microchip: add mpfs gpio interrupt mux driver
  dt-bindings: soc: microchip: document PolarFire SoC's gpio interrupt mux
  gpio: mpfs: Add interrupt support
  soc: qcom: ubwc: add helpers to get programmable values
  soc: qcom: ubwc: add helper to get min_acc length
  firmware: qcom: scm: Register gunyah watchdog device
  soc: qcom: socinfo: Add SoC ID for SA8650P
  dt-bindings: arm: qcom,ids: Add SoC ID for SA8650P
  firmware: qcom: scm: Allow QSEECOM on Mahua CRD
  soc: qcom: wcnss: simplify allocation of req
  soc: qcom: pd-mapper: Add support for Eliza
  soc: qcom: aoss: compare against normalized cooling state
  soc: qcom: llcc: fix v1 SB syndrome register offset
  ...
2026-04-16 20:34:34 -07:00
Linus Torvalds
e65f4718a5 Merge tag 'soc-dt-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC devicetree updates from Arnd Bergmann:
 "A number of SoC platforms are adding modernized variants of their
  already supported chips time, with a total of 12 new SoCs, and two
  older SoC getting removed:

   - Qualcomm Glymur is a compute SoC using 18 Oryon-2 CPU cores
   - Qualcomm Mahua is a variant of Glymur with only 12 CPU cores, but
     largely identical.
   - Qualcomm Eliza is an embeded platform for mobile phone (SM7750) and
     IOT (QC7790S/M) workloads
   - Qualcomm IPQ5210 is a wireless networking SoC using Cortex-A53
     cores
   - Qualcomm apq8084 and ipq806x had only rudimentary support but no
     actual products using them, so they are now gone.
   - Axis ARTPEC-9 is a follow-up to the ARTPEC-8 embedded SoC, using
     the Samsung SoC platform but now with Cortex-A55 cores
   - ARM Zena is a virtual platform in FVP using Cortex-A720AE cores,
     with additional versions planned to be merged in the future.
   - ARM corstone-1000-a320 is a reference platform for IOT, using
     low-end Cortex-A320 cores
   - Microchip LAN9691 is an updated 64-bit variant of the arm32 lan966x
     series of networking SoCs
   - Microchip PIC64GX is an embedded RISC-V chip using SIFIVE U54 CPU
     cores
   - Rockchip RV1103B is the low-end 32-bit single-core vision processor
   - Renesas RZ/G3L (r9a08g046) is an industrial embedded chip using
     Cortex-A55 cores, similar to the G3E and G3S variants we already
     supported.
   - NXP S32N79 is an automotive SoC using Cortex-A78AE cores, a
     significant upgrade from the older S32V and S32G series

  These all come with at least one reference board or an initial product
  using these, in total there are 67 newly added boards. The ones for
  already supported SoCs are:

   - Two more Aspeed BMC based boards
   - Three older tablets based on 32-bit OMAP4 and Exynos5 SoCs
   - One Set-top-box based on Allwinner H6
   - 22 additional industrial/embedded boards using 64-bit NXP i.MX8M or
     i.MX9 SoCs
   - 20 Qualcomm SoC based machines across all possible markets:
     workstation, gaming, laptop, phone, networking, reference, ...
   - Three more Rockchips rk35xx based boards
   - Four variants of the Toradex Verdin using TI AM62

  Other notable bits are:

   - A cleanup for the 32-bit Tegra paz00 board moved the last board
     specific code on Tegra into equivalent dts syntax.
   - There continues to be a significant number of fixes for static
     checking of dtc syntax, but it feels like this is slowing down,
     hopefully getting into a state where most known issues are
     addressed
   - Additional hardware support for many existing boards across SoC
     families, notably Qualcomm, Broadcom, i.MX2, i.MX6, Rockchips,
     STM32, Mediatek, Tegra, TI and Microchip"

* tag 'soc-dt-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (841 commits)
  arm64: dts: ti: k3: Use memory-region-names for r5f
  ARM: dts: imx: Add DT overlays for DH i.MX6 DHCOM SoM and boards
  ARM: dts: imx6sx: remove fallback compatible string fsl,imx28-lcdif
  ARM: dts: imx25: rename node name tcq to touchscreen
  ARM: dts: imx: b850v3: Disable unused usdhc4
  ARM: dts: imx: b850v3: Define GPIO line names
  ARM: dts: imx: b850v3: Use alphabetical sorting
  ARM: dts: imx: bx50v3: Configure phy-mode to eliminate a warning
  ARM: dts: imx: bx50v3: Configure switch PHY max-speed to 100Mbps
  ARM: dts: imx7ulp: Add CPU clock and OPP table support
  ARM: dts: imx7-mba7: Deassert BOOT_EN after boot
  ARM: dts: tqma7: add boot phase properties
  ARM: dts: imx7s: add boot phase properties
  ARM: dts: tqma6ul[l]: correct spelling of TQ-Systems
  ARM: dts: mba6ulx: add boot phase properties
  ARM: dts: imx6ul[l]-tqma6ul[l]: add boot phase properties
  ARM: dts: imx6ul/imx6ull: add boot phase properties
  ARM: dts: imx6qdl-mba6: add boot phase properties
  ARM: dts: imx6qdl-tqma6: add boot phase properties
  ARM: dts: imx6qdl: add boot phase properties
  ...
2026-04-16 20:28:48 -07:00
Linus Torvalds
440d6635b2 Merge tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:

 - "pid: make sub-init creation retryable" (Oleg Nesterov)

   Make creation of init in a new namespace more robust by clearing away
   some historical cruft which is no longer needed. Also some
   documentation fixups

 - "selftests/fchmodat2: Error handling and general" (Mark Brown)

   Fix and a cleanup for the fchmodat2() syscall selftest

 - "lib: polynomial: Move to math/ and clean up" (Andy Shevchenko)

 - "hung_task: Provide runtime reset interface for hung task detector"
   (Aaron Tomlin)

   Give administrators the ability to zero out
   /proc/sys/kernel/hung_task_detect_count

 - "tools/getdelays: use the static UAPI headers from
   tools/include/uapi" (Thomas Weißschuh)

   Teach getdelays to use the in-kernel UAPI headers rather than the
   system-provided ones

 - "watchdog/hardlockup: Improvements to hardlockup" (Mayank Rungta)

   Several cleanups and fixups to the hardlockup detector code and its
   documentation

 - "lib/bch: fix undefined behavior from signed left-shifts" (Josh Law)

   A couple of small/theoretical fixes in the bch code

 - "ocfs2/dlm: fix two bugs in dlm_match_regions()" (Junrui Luo)

 - "cleanup the RAID5 XOR library" (Christoph Hellwig)

   A quite far-reaching cleanup to this code. I can't do better than to
   quote Christoph:

     "The XOR library used for the RAID5 parity is a bit of a mess right
      now. The main file sits in crypto/ despite not being cryptography
      and not using the crypto API, with the generic implementations
      sitting in include/asm-generic and the arch implementations
      sitting in an asm/ header in theory. The latter doesn't work for
      many cases, so architectures often build the code directly into
      the core kernel, or create another module for the architecture
      code.

      Change this to a single module in lib/ that also contains the
      architecture optimizations, similar to the library work Eric
      Biggers has done for the CRC and crypto libraries later. After
      that it changes to better calling conventions that allow for
      smarter architecture implementations (although none is contained
      here yet), and uses static_call to avoid indirection function call
      overhead"

 - "lib/list_sort: Clean up list_sort() scheduling workarounds"
   (Kuan-Wei Chiu)

   Clean up this library code by removing a hacky thing which was added
   for UBIFS, which UBIFS doesn't actually need

 - "Fix bugs in extract_iter_to_sg()" (Christian Ehrhardt)

   Fix a few bugs in the scatterlist code, add in-kernel tests for the
   now-fixed bugs and fix a leak in the test itself

 - "kdump: Enable LUKS-encrypted dump target support in ARM64 and
   PowerPC" (Coiby Xu)

   Enable support of the LUKS-encrypted device dump target on arm64 and
   powerpc

 - "ocfs2: consolidate extent list validation into block read callbacks"
   (Joseph Qi)

   Cleanup, simplify, and make more robust ocfs2's validation of extent
   list fields (Kernel test robot loves mounting corrupted fs images!)

* tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (127 commits)
  ocfs2: validate group add input before caching
  ocfs2: validate bg_bits during freefrag scan
  ocfs2: fix listxattr handling when the buffer is full
  doc: watchdog: fix typos etc
  update Sean's email address
  ocfs2: use get_random_u32() where appropriate
  ocfs2: split transactions in dio completion to avoid credit exhaustion
  ocfs2: remove redundant l_next_free_rec check in __ocfs2_find_path()
  ocfs2: validate extent block list fields during block read
  ocfs2: remove empty extent list check in ocfs2_dx_dir_lookup_rec()
  ocfs2: validate dx_root extent list fields during block read
  ocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRY
  ocfs2: handle invalid dinode in ocfs2_group_extend
  .get_maintainer.ignore: add Askar
  ocfs2: validate bg_list extent bounds in discontig groups
  checkpatch: exclude forward declarations of const structs
  tools/accounting: handle truncated taskstats netlink messages
  taskstats: set version in TGID exit notifications
  ocfs2/heartbeat: fix slot mapping rollback leaks on error paths
  arm64,ppc64le/kdump: pass dm-crypt keys to kdump kernel
  ...
2026-04-16 20:11:56 -07:00
Linus Torvalds
0b2f2b1fc0 Merge tag 'v7.1-rc1-part2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client updates from Steve French:

 - Fix integer underflow in encrypted read

 - Four debug patches, adding a few tracepoints

 - Minor update to MAINTAINERS file (preferred server URL for cifs)

 - Remove the BUG_ON() calls in d_mark_tmpfile_name

* tag 'v7.1-rc1-part2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  MAINTAINERS: change git.samba.org to https
  smb: client: fix integer underflow in receive_encrypted_read()
  smb: client: add tracepoints for deferred handle caching
  smb: client: add oplock level to smb3_open_done tracepoint
  smb: client: add tracepoint for local lock conflicts
  smb: client: add tracepoints for lock operations
  vfs: get rid of BUG_ON() in d_mark_tmpfile_name()
2026-04-16 19:14:55 -07:00
Jiri Kosina
b8a5774cd4 Merge branch 'for-7.1/asus' into for-linus
- robustification of hid-asus driver to prepare for support for
  more devices which is underway (Denis Benato)
2026-04-16 21:11:19 +02:00
Jiri Kosina
a1bbd84071 Merge branch 'for-7.1/hid-bpf' into for-linus
- sync of HID-BPF with udev-hid-bpf (Benjamin Tissoires, Muhammed Rishal)
2026-04-16 21:09:41 +02:00
Jiri Kosina
b3793af327 Merge branch 'for-7.1/intel-thc' into for-linus
- power management improvements to intel-thc-hid driver (Even Xu)
2026-04-16 21:08:14 +02:00
Jiri Kosina
51cc1c4274 Merge branch 'for-7.1/lenovo-v2' into for-linus
- new driver for Lenovo Legion Go / S devices (Derek J. Clark)
2026-04-16 21:07:13 +02:00
Jiri Kosina
a3922c8393 Merge branch 'for-7.1/mcp2221' into for-linus 2026-04-16 21:06:51 +02:00
Jiri Kosina
38d76018bb Merge branch 'for-7.1/pidff' into for-linus
- various new per-device(-group) type quirks for pidff driver (Tomasz Pakuła)
2026-04-16 21:05:37 +02:00
Jiri Kosina
1b2e4375f6 Merge branch 'for-7.1/pl' into for-linus 2026-04-16 21:05:19 +02:00