linux-2.6-microblaze.git
5 weeks agodrm/panel: Add Novatek NT37801 panel driver
Krzysztof Kozlowski [Thu, 8 May 2025 14:34:48 +0000 (16:34 +0200)]
drm/panel: Add Novatek NT37801 panel driver

Add driver for the Novatek NT37801 or NT37810 AMOLED DSI 1440x3200
panel in CMD mode, used on Qualcomm MTP8750 board (SM8750).

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250508-sm8750-display-panel-v2-2-3ca072e3d1fa@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250508-sm8750-display-panel-v2-2-3ca072e3d1fa@linaro.org
5 weeks agodt-bindings: display: panel: Add Novatek NT37801
Krzysztof Kozlowski [Thu, 8 May 2025 14:34:47 +0000 (16:34 +0200)]
dt-bindings: display: panel: Add Novatek NT37801

Add bindings for the Novatek NT37801 or NT37810 AMOLED DSI panel.
Sources, like downstream DTS, schematics and hardware manuals, use two
model names (NT37801 and NT37810), so choose one and hope it is correct.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250508-sm8750-display-panel-v2-1-3ca072e3d1fa@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250508-sm8750-display-panel-v2-1-3ca072e3d1fa@linaro.org
5 weeks agodt-bindings: display: panel: convert truly,nt35597.txt to dt-schema
Neil Armstrong [Wed, 7 May 2025 09:19:21 +0000 (11:19 +0200)]
dt-bindings: display: panel: convert truly,nt35597.txt to dt-schema

Convert the Truly NT35597 2K display panel bindings to dt-schema.

The vdispp-supply & vdispn-supply are not marked as required since
in practice they are not defined in sdm845-mtp.dts which is the
only used of these bindings.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250507-topic-misc-truly-nt35597-yaml-v1-1-bc719ad8dfff@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250507-topic-misc-truly-nt35597-yaml-v1-1-bc719ad8dfff@linaro.org
5 weeks agodma-buf/sw-sync: Remove unused debug code
Dr. David Alan Gilbert [Mon, 5 May 2025 23:38:38 +0000 (00:38 +0100)]
dma-buf/sw-sync: Remove unused debug code

sync_file_debug_add() and sync_file_debug_remove() have been unused
since 2016's
commit d4cab38e153d ("staging/android: prepare sync_file for de-staging")

Remove them.

Since sync_file_debug_add was the only thing to add to
sync_file_list_head, the code that dumps it in part of
sync_info_debugfs_show can be removed, and the declaration of
the list and it's associated lock can be removed.
(The 'fences:\n...' marker in that debugfs file is left in
so as not to change the output)

That leaves the sync_print_sync_file() helper unused, and
is thus removed.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20250505233838.105668-1-linux@treblig.org
6 weeks agogpu: host1x: Use for_each_available_child_of_node_scoped()
Jinjie Ruan [Fri, 30 Aug 2024 07:38:24 +0000 (15:38 +0800)]
gpu: host1x: Use for_each_available_child_of_node_scoped()

Avoids the need for manual cleanup of_node_put() in early exits
from the loop.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20240830073824.3539690-1-ruanjinjie@huawei.com
6 weeks agodrm/tegra: Fix a possible null pointer dereference
Qiu-ji Chen [Wed, 6 Nov 2024 09:59:06 +0000 (17:59 +0800)]
drm/tegra: Fix a possible null pointer dereference

In tegra_crtc_reset(), new memory is allocated with kzalloc(), but
no check is performed. Before calling __drm_atomic_helper_crtc_reset,
state should be checked to prevent possible null pointer dereference.

Fixes: b7e0b04ae450 ("drm/tegra: Convert to using __drm_atomic_helper_crtc_reset() for reset.")
Cc: stable@vger.kernel.org
Signed-off-by: Qiu-ji Chen <chenqiuji666@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20241106095906.15247-1-chenqiuji666@gmail.com
6 weeks agodrm/tegra: rgb: Fix the unbound reference count
Biju Das [Wed, 5 Feb 2025 11:21:35 +0000 (11:21 +0000)]
drm/tegra: rgb: Fix the unbound reference count

The of_get_child_by_name() increments the refcount in tegra_dc_rgb_probe,
but the driver does not decrement the refcount during unbind. Fix the
unbound reference count using devm_add_action_or_reset() helper.

Fixes: d8f4a9eda006 ("drm: Add NVIDIA Tegra20 support")
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20250205112137.36055-1-biju.das.jz@bp.renesas.com
6 weeks agogpu: host1x: Remove mid-job CDMA flushes
Mikko Perttunen [Tue, 4 Feb 2025 02:45:46 +0000 (02:45 +0000)]
gpu: host1x: Remove mid-job CDMA flushes

The current code can issue CDMA flushes (DMAPUT bumps) in the middle
of a job, before all opcodes have been written into the pushbuffer.
This can happen when pushbuffer fills up. Presumably this made sense
at some point in the past, but it doesn't anymore, as it cannot lead
to more space appearing in the pushbuffer as it is only cleaned full
jobs at a time.

Mid-job flushes can also cause problems, as in an extreme situation
(seen in practice), the hardware can run through the entire pushbuffer
including the prefix of a partially written job without the driver
being able to process any CDMA updates. This can cause the engine
MLOCK to be taken and held for extended periods as the tail of the
job is not yet available to hardware.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20250204024546.1168126-1-mperttunen@nvidia.com
6 weeks agodrm/tegra: falcon: Pipeline firmware copy
Mikko Perttunen [Wed, 5 Feb 2025 06:10:27 +0000 (06:10 +0000)]
drm/tegra: falcon: Pipeline firmware copy

The Falcon DMA engine allows queueing multiple operations for
improved performance. Do this to optimize firmware loading.
A performance improvement of 4x to 6x is observed.

Co-developed-by: Ivan Raul Guadarrama <iguadarrama@nvidia.com>
Signed-off-by: Ivan Raul Guadarrama <iguadarrama@nvidia.com>
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20250205061027.1205748-1-mperttunen@nvidia.com
6 weeks agodrm/tegra: dpaux: Use dev_err_probe()
Zhang Enpei [Wed, 2 Apr 2025 11:37:58 +0000 (19:37 +0800)]
drm/tegra: dpaux: Use dev_err_probe()

Replace the open-code with dev_err_probe() to simplify the code.

Signed-off-by: Zhang Enpei <zhang.enpei@zte.com.cn>
Signed-off-by: Shao Mingyin <shao.mingyin@zte.com.cn>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20250402193758365XauggSF2EWBYY-e_jgNch@zte.com.cn
6 weeks agodrm/tegra: Remove unneeded include
Jon Hunter [Mon, 28 Apr 2025 15:34:35 +0000 (16:34 +0100)]
drm/tegra: Remove unneeded include

The header file 'tegra_drm.h' is included in gem.c, but this file is
already include 'drm.h'. Although there is no harm in including this
file again, it is also not necessary. Furthermore, the header file is
located under 'include/uapi/drm' so ideally the full path would be
used to be explicit. For now, just remove from gem.c.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20250428153435.1013101-1-jonathanh@nvidia.com
6 weeks agodrm/tegra: Assign plane type before registration
Thierry Reding [Mon, 21 Apr 2025 16:13:05 +0000 (11:13 -0500)]
drm/tegra: Assign plane type before registration

Changes to a plane's type after it has been registered aren't propagated
to userspace automatically. This could possibly be achieved by updating
the property, but since we can already determine which type this should
be before the registration, passing in the right type from the start is
a much better solution.

Suggested-by: Aaron Kling <webgeek1234@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Cc: stable@vger.kernel.org
Fixes: 473079549f27 ("drm/tegra: dc: Add Tegra186 support")
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20250421-tegra-drm-primary-v2-1-7f740c4c2121@gmail.com
6 weeks agocheckpatch: remove %p4cn
Aditya Garg [Wed, 30 Apr 2025 13:49:08 +0000 (19:19 +0530)]
checkpatch: remove %p4cn

%p4cn was recently removed and replaced by %p4chR in vsprintf. So,
remove the check for %p4cn from checkpatch.pl.

Fixes: 37eed892cc5f ("vsprintf: Use %p4chR instead of %p4cn for reading data in reversed host ordering")
Signed-off-by: Aditya Garg <gargaditya08@live.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Tested-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/PN3PR01MB959760B89BF7E4B43852700CB8832@PN3PR01MB9597.INDPRD01.PROD.OUTLOOK.COM
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
6 weeks agodrm/panel: simple: Update timings for AUO G101EVN010
Kevin Baker [Mon, 5 May 2025 17:02:56 +0000 (12:02 -0500)]
drm/panel: simple: Update timings for AUO G101EVN010

Switch to panel timings based on datasheet for the AUO G101EVN01.0
LVDS panel. Default timings were tested on the panel.

Previous mode-based timings resulted in horizontal display shift.

Signed-off-by: Kevin Baker <kevinb@ventureresearch.com>
Fixes: 4fb86404a977 ("drm/panel: simple: Add AUO G101EVN010 panel support")
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250505170256.1385113-1-kevinb@ventureresearch.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
6 weeks agodrm/vkms: Adjust vkms_state->active_planes allocation type
Kees Cook [Sat, 26 Apr 2025 06:14:32 +0000 (23:14 -0700)]
drm/vkms: Adjust vkms_state->active_planes allocation type

In preparation for making the kmalloc family of allocators type aware,
we need to make sure that the returned type from the allocation matches
the type of the variable being assigned. (Before, the allocator would
always return "void *", which can be implicitly cast to any pointer type.)

The assigned type is "struct vkms_plane_state **", but the returned type
will be "struct drm_plane **". These are the same size (pointer size), but
the types don't match. Adjust the allocation type to match the assignment.

Signed-off-by: Kees Cook <kees@kernel.org>
Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Fixes: 8b1865873651 ("drm/vkms: totally reworked crc data tracking")
Link: https://lore.kernel.org/r/20250426061431.work.304-kees@kernel.org
Signed-off-by: Louis Chauvet <contact@louischauvet.fr>
6 weeks agoMerge drm/drm-next into drm-misc-next
Thomas Zimmermann [Tue, 6 May 2025 07:09:49 +0000 (09:09 +0200)]
Merge drm/drm-next into drm-misc-next

Backmerging drm-next to get fixes from v6.15-rc5.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
6 weeks agoBackMerge tag 'v6.15-rc5' into drm-next
Dave Airlie [Tue, 6 May 2025 06:39:25 +0000 (16:39 +1000)]
BackMerge tag 'v6.15-rc5' into drm-next

Linux 6.15-rc5, requested by tzimmerman for fixes required in drm-next.

Signed-off-by: Dave Airlie <airlied@redhat.com>
6 weeks agodocs: backlight: Clarify `actual_brightness`
Mario Limonciello [Tue, 15 Apr 2025 19:20:59 +0000 (14:20 -0500)]
docs: backlight: Clarify `actual_brightness`

Currently userspace software systemd treats `brightness` and
`actual_brightness` identically due to a bug found in an out of tree
driver.

This however causes problems for in-tree drivers that use brightness
to report user requested `brightness` and `actual_brightness` to report
what the hardware actually has programmed.

Clarify the documentation to match the behavior described in commit
6ca017658b1f9 ("[PATCH] backlight: Backlight Class Improvements").

Cc: Lee Jones <lee@kernel.org>
Cc: Lennart Poettering <lennart@poettering.net>
Cc: richard.purdie@linuxfoundation.org
Link: https://github.com/systemd/systemd/pull/36881
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Link: https://lore.kernel.org/r/20250415192101.2033518-1-superm1@kernel.org
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
6 weeks agodrm/bridge: anx7625: change the gpiod_set_value API
Ayushi Makhija [Mon, 5 May 2025 09:42:45 +0000 (15:12 +0530)]
drm/bridge: anx7625: change the gpiod_set_value API

Use gpiod_set_value_cansleep() instead of gpiod_set_value()
to fix the below call trace in the boot log:

[    5.690534] Call trace:
[    5.690536]  gpiod_set_value+0x40/0xa4
[    5.690540]  anx7625_runtime_pm_resume+0xa0/0x324 [anx7625]
[    5.690545]  __rpm_callback+0x48/0x1d8
[    5.690549]  rpm_callback+0x6c/0x78

Certain GPIO controllers require access via message-based buses
such as I2C or SPI, which may cause the GPIOs to enter a sleep
state. Therefore, use the gpiod_set_value_cansleep().

Signed-off-by: Ayushi Makhija <quic_amakhija@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20250505094245.2660750-7-quic_amakhija@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
6 weeks agodrm/bridge: anx7625: fix anx7625_sink_detect() to return correct hpd status
Ayushi Makhija [Mon, 5 May 2025 09:42:44 +0000 (15:12 +0530)]
drm/bridge: anx7625: fix anx7625_sink_detect() to return correct hpd status

In the anx7625_sink_detect(), the device is checked to see
if it is a panel bridge, and it always sends a "connected"
status to the connector. When adding the DP port on port 1 of the
anx7625, it incorrectly treats it as a panel bridge and sends an
always "connected" status. Instead of checking the status on the
panel bridge, it's better to check the hpd_status for connectors
that supports hot-plugging. This way, it verifies the hpd_status
variable before sending the status to the connector.

In case of eDP, anx7625_bridge_detect() will not get called because
the bridge->ops condition in anx7625_link_bridge() will not be
satisfied. Since anx7625_sink_detect() is called from
anx7625_bridge_detect(), this results in the sink_detect logic not
being executed for eDP.

Signed-off-by: Ayushi Makhija <quic_amakhija@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250505094245.2660750-6-quic_amakhija@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
6 weeks agodrm/bridge: anx7625: fix drm_bridge ops flags to support hot-plugging
Ayushi Makhija [Mon, 5 May 2025 09:42:43 +0000 (15:12 +0530)]
drm/bridge: anx7625: fix drm_bridge ops flags to support hot-plugging

The anx7625_link_bridge() checks if a device is not a panel
bridge and add DRM_BRIDGE_OP_HPD and DRM_BRIDGE_OP_DETECT
flags to the drm_bridge->ops. However, on port 1 of the anx7625
bridge, any device added is always treated as a panel bridge,
preventing connector_detect() from being called. To resolve
this, instead of just checking if it is a panel bridge, verify
the type of device based on aux whether it is a DisplayPort or
eDP panel. If the device is not of the eDP type, add
DRM_BRIDGE_OP_HPD and DRM_BRIDGE_OP_DETECT flags to the to
the drm_bridge->ops.

Signed-off-by: Ayushi Makhija <quic_amakhija@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250505094245.2660750-5-quic_amakhija@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
6 weeks agodrm/bridge: anx7625: enable HPD interrupts
Ayushi Makhija [Mon, 5 May 2025 09:42:42 +0000 (15:12 +0530)]
drm/bridge: anx7625: enable HPD interrupts

When the device enters the suspend state, it prevents
HPD interrupts from occurring. To address this, implement
.hpd_enable() and .hpd_disable() callbacks functions of
the drm_bridge.

Signed-off-by: Ayushi Makhija <quic_amakhija@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250505094245.2660750-4-quic_amakhija@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
6 weeks agodrivers: gpu: drm: panel: Add BOE TD4320
Barnabás Czémán [Wed, 30 Apr 2025 19:42:13 +0000 (21:42 +0200)]
drivers: gpu: drm: panel: Add BOE TD4320

Add driver for BOE TD4320 DSI panel, used in Xiaomi Redmi Note 7
mobile phone.

Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250430-lavender-panel-v3-2-7625e62d62b2@mainlining.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250430-lavender-panel-v3-2-7625e62d62b2@mainlining.org
6 weeks agodt-bindings: display: panel: Add BOE TD4320
Barnabás Czémán [Wed, 30 Apr 2025 19:42:12 +0000 (21:42 +0200)]
dt-bindings: display: panel: Add BOE TD4320

Document BOE TD4320 6.3" 2340x1080 panel
found in Xiaomi Redmi Note 7 smartphone.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Link: https://lore.kernel.org/r/20250430-lavender-panel-v3-1-7625e62d62b2@mainlining.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250430-lavender-panel-v3-1-7625e62d62b2@mainlining.org
6 weeks agoLinux 6.15-rc5
Linus Torvalds [Sun, 4 May 2025 20:55:04 +0000 (13:55 -0700)]
Linux 6.15-rc5

6 weeks agoMerge tag 'perf-tools-fixes-for-v6.15-2025-05-04' of git://git.kernel.org/pub/scm...
Linus Torvalds [Sun, 4 May 2025 19:57:18 +0000 (12:57 -0700)]
Merge tag 'perf-tools-fixes-for-v6.15-2025-05-04' of git://git./linux/kernel/git/perf/perf-tools

Pull perf tools fixes from Namhyung Kim:
 "Just a couple of build fixes on arm64"

* tag 'perf-tools-fixes-for-v6.15-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
  perf tools: Fix in-source libperf build
  perf tools: Fix arm64 build by generating unistd_64.h

6 weeks agoMerge tag 'trace-v6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
Linus Torvalds [Sun, 4 May 2025 17:15:42 +0000 (10:15 -0700)]
Merge tag 'trace-v6.15-rc4' of git://git./linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Fix read out of bounds bug in tracing_splice_read_pipe()

   The size of the sub page being read can now be greater than a page.
   But the buffer used in tracing_splice_read_pipe() only allocates a
   page size. The data copied to the buffer is the amount in sub buffer
   which can overflow the buffer.

   Use min((size_t)trace_seq_used(&iter->seq), PAGE_SIZE) to limit the
   amount copied to the buffer to a max of PAGE_SIZE.

 - Fix the test for NULL from "!filter_hash" to "!*filter_hash"

   The add_next_hash() function checked for NULL at the wrong pointer
   level.

 - Do not use the array in trace_adjust_address() if there are no
   elements

   The trace_adjust_address() finds the offset of a module that was
   stored in the persistent buffer when reading the previous boot buffer
   to see if the address belongs to a module that was loaded in the
   previous boot. An array is created that matches currently loaded
   modules with previously loaded modules. The trace_adjust_address()
   uses that array to find the new offset of the address that's in the
   previous buffer. But if no module was loaded, it ends up reading the
   last element in an array that was never allocated.

   Check if nr_entries is zero and exit out early if it is.

 - Remove nested lock of trace_event_sem in print_event_fields()

   The print_event_fields() function iterates over the ftrace_events
   list and requires the trace_event_sem semaphore held for read. But
   this function is always called with that semaphore held for read.

   Remove the taking of the semaphore and replace it with
   lockdep_assert_held_read(&trace_event_sem)

* tag 'trace-v6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Do not take trace_event_sem in print_event_fields()
  tracing: Fix trace_adjust_address() when there is no modules in scratch area
  ftrace: Fix NULL memory allocation check
  tracing: Fix oob write in trace_seq_to_buffer()

6 weeks agoMerge tag 'parisc-for-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 4 May 2025 15:47:18 +0000 (08:47 -0700)]
Merge tag 'parisc-for-6.15-rc5' of git://git./linux/kernel/git/deller/parisc-linux

Pull parisc fix from Helge Deller:
 "Fix a double SIGFPE crash"

* tag 'parisc-for-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Fix double SIGFPE crash

6 weeks agoparisc: Fix double SIGFPE crash
Helge Deller [Sat, 3 May 2025 16:24:01 +0000 (18:24 +0200)]
parisc: Fix double SIGFPE crash

Camm noticed that on parisc a SIGFPE exception will crash an application with
a second SIGFPE in the signal handler.  Dave analyzed it, and it happens
because glibc uses a double-word floating-point store to atomically update
function descriptors. As a result of lazy binding, we hit a floating-point
store in fpe_func almost immediately.

When the T bit is set, an assist exception trap occurs when when the
co-processor encounters *any* floating-point instruction except for a double
store of register %fr0.  The latter cancels all pending traps.  Let's fix this
by clearing the Trap (T) bit in the FP status register before returning to the
signal handler in userspace.

The issue can be reproduced with this test program:

root@parisc:~# cat fpe.c

static void fpe_func(int sig, siginfo_t *i, void *v) {
        sigset_t set;
        sigemptyset(&set);
        sigaddset(&set, SIGFPE);
        sigprocmask(SIG_UNBLOCK, &set, NULL);
        printf("GOT signal %d with si_code %ld\n", sig, i->si_code);
}

int main() {
        struct sigaction action = {
                .sa_sigaction = fpe_func,
                .sa_flags = SA_RESTART|SA_SIGINFO };
        sigaction(SIGFPE, &action, 0);
        feenableexcept(FE_OVERFLOW);
        return printf("%lf\n",1.7976931348623158E308*1.7976931348623158E308);
}

root@parisc:~# gcc fpe.c -lm
root@parisc:~# ./a.out
 Floating point exception

root@parisc:~# strace -f ./a.out
 execve("./a.out", ["./a.out"], 0xf9ac7034 /* 20 vars */) = 0
 getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
 ...
 rt_sigaction(SIGFPE, {sa_handler=0x1110a, sa_mask=[], sa_flags=SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
 --- SIGFPE {si_signo=SIGFPE, si_code=FPE_FLTOVF, si_addr=0x1078f} ---
 --- SIGFPE {si_signo=SIGFPE, si_code=FPE_FLTOVF, si_addr=0xf8f21237} ---
 +++ killed by SIGFPE +++
 Floating point exception

Signed-off-by: Helge Deller <deller@gmx.de>
Suggested-by: John David Anglin <dave.anglin@bell.net>
Reported-by: Camm Maguire <camm@maguirefamily.org>
Cc: stable@vger.kernel.org
6 weeks agoMerge tag 'edac_urgent_for_v6.15_rc5' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 4 May 2025 15:20:17 +0000 (08:20 -0700)]
Merge tag 'edac_urgent_for_v6.15_rc5' of git://git./linux/kernel/git/ras/ras

Pull EDAC fixes from Borislav Petkov:

 - Test the correct structure member when handling correctable errors
   and avoid spurious interrupts, in altera_edac

* tag 'edac_urgent_for_v6.15_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/altera: Set DDR and SDMMC interrupt mask before registration
  EDAC/altera: Test the correct error reg offset

6 weeks agoMerge tag 'x86-urgent-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 4 May 2025 15:12:03 +0000 (08:12 -0700)]
Merge tag 'x86-urgent-2025-05-04' of git://git./linux/kernel/git/tip/tip

Pull x86 fix from Ingo Molnar:
 "Fix SEV-SNP memory acceptance from the EFI stub for guests
  running at VMPL >0"

* tag 'x86-urgent-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot/sev: Support memory acceptance in the EFI stub under SVSM

6 weeks agoMerge tag 'perf-urgent-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 4 May 2025 15:06:42 +0000 (08:06 -0700)]
Merge tag 'perf-urgent-2025-05-04' of git://git./linux/kernel/git/tip/tip

Pull misc perf fixes from Ingo Molnar:

 - Require group events for branch counter groups and
   PEBS counter snapshotting groups to be x86 events.

 - Fix the handling of counter-snapshotting of non-precise
   events, where counter values may move backwards a bit,
   temporarily, confusing the code.

 - Restrict perf/KVM PEBS to guest-owned events.

* tag 'perf-urgent-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel: KVM: Mask PEBS_ENABLE loaded for guest with vCPU's value.
  perf/x86/intel/ds: Fix counter backwards of non-precise events counters-snapshotting
  perf/x86/intel: Check the X86 leader for pebs_counter_event_group
  perf/x86/intel: Only check the group flag for X86 leader

6 weeks agoMerge tag 'irq-urgent-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 4 May 2025 14:58:53 +0000 (07:58 -0700)]
Merge tag 'irq-urgent-2025-05-04' of git://git./linux/kernel/git/tip/tip

Pull irq fixes from Ingo Molnar:

 - Prevent NULL pointer dereference in msi_domain_debug_show()

 - Fix crash in the qcom-mpm irqchip driver when configuring
   interrupts for non-wake GPIOs

* tag 'irq-urgent-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/qcom-mpm: Prevent crash when trying to handle non-wake GPIOs
  genirq/msi: Prevent NULL pointer dereference in msi_domain_debug_show()

6 weeks agodrm/rockchip: inno-hdmi: Fix video timing HSYNC/VSYNC polarity setting for rk3036
Andy Yan [Tue, 22 Apr 2025 07:04:43 +0000 (15:04 +0800)]
drm/rockchip: inno-hdmi: Fix video timing HSYNC/VSYNC polarity setting for rk3036

The HSYNC/VSYNC polarity of rk3036 HDMI are controlled by GRF.
Without the polarity configuration in GRF, it can be observed
from the HDMI protocol analyzer that the H/V front/back timing
output by RK3036 HDMI are currently not in line with the specifications.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de> #rk3036-kylin
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250422070455.432666-5-andyshrk@163.com
6 weeks agodrm/rockchip: inno-hdmi: Simplify error handler with dev_err_probe
Andy Yan [Tue, 22 Apr 2025 07:04:42 +0000 (15:04 +0800)]
drm/rockchip: inno-hdmi: Simplify error handler with dev_err_probe

Use dev_err_probe simplify the error handle.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de> #rk3036-kylin
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250422070455.432666-4-andyshrk@163.com
6 weeks agodt-bindings: display: rockchip,inno-hdmi: Document GRF for RK3036 HDMI
Andy Yan [Tue, 22 Apr 2025 07:04:41 +0000 (15:04 +0800)]
dt-bindings: display: rockchip,inno-hdmi: Document GRF for RK3036 HDMI

HDMI on RK3036 use GRF control the HSYNC/VSYNC polarity, but this part
is missing when it first landing upstream.

Document that it is mandatory for RK3036 HDMI.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250422070455.432666-3-andyshrk@163.com
6 weeks agodt-bindings: display: rockchip,inno-hdmi: Fix Document of RK3036 compatible
Andy Yan [Tue, 22 Apr 2025 07:04:40 +0000 (15:04 +0800)]
dt-bindings: display: rockchip,inno-hdmi: Fix Document of RK3036 compatible

The RK3036 HDMI DDC bus requires it's PHY's reference clock to be enabled
first before normal DDC communication can be carried out.

Therefore, both RK3036 and RK3128 HDMI require two identical clocks.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250422070455.432666-2-andyshrk@163.com
6 weeks agodrm/rockchip: rk3066_hdmi: switch to drm bridge
Andy Yan [Mon, 28 Apr 2025 10:23:07 +0000 (18:23 +0800)]
drm/rockchip: rk3066_hdmi: switch to drm bridge

Convert it to drm bridge driver, it will be convenient for us to
migrate the connector part to the display driver later.

Note: I don't have the hardware to test this driver, so for now
I can only do the compilation test.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de> #rk3066-marsboard
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250428102309.1501986-1-andyshrk@163.com
6 weeks agox86/boot/sev: Support memory acceptance in the EFI stub under SVSM
Ard Biesheuvel [Mon, 28 Apr 2025 17:43:22 +0000 (19:43 +0200)]
x86/boot/sev: Support memory acceptance in the EFI stub under SVSM

Commit:

  d54d610243a4 ("x86/boot/sev: Avoid shared GHCB page for early memory acceptance")

provided a fix for SEV-SNP memory acceptance from the EFI stub when
running at VMPL #0. However, that fix was insufficient for SVSM SEV-SNP
guests running at VMPL >0, as those rely on a SVSM calling area, which
is a shared buffer whose address is programmed into a SEV-SNP MSR, and
the SEV init code that sets up this calling area executes much later
during the boot.

Given that booting via the EFI stub at VMPL >0 implies that the firmware
has configured this calling area already, reuse it for performing memory
acceptance in the EFI stub.

Fixes: fcd042e86422 ("x86/sev: Perform PVALIDATE using the SVSM when not at VMPL0")
Tested-by: Tom Lendacky <thomas.lendacky@amd.com>
Co-developed-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: <stable@vger.kernel.org>
Cc: Dionna Amalie Glaze <dionnaglaze@google.com>
Cc: Kevin Loughlin <kevinloughlin@google.com>
Cc: linux-efi@vger.kernel.org
Link: https://lore.kernel.org/r/20250428174322.2780170-2-ardb+git@google.com
6 weeks agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Sat, 3 May 2025 23:30:53 +0000 (16:30 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:
 "Add missing sentinels to the arm64 Spectre-BHB MIDR arrays, otherwise
  is_midr_in_range_list() reads beyond the end of these arrays"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays

6 weeks agoMerge tag 'i2c-for-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sat, 3 May 2025 23:26:39 +0000 (16:26 -0700)]
Merge tag 'i2c-for-6.15-rc5' of git://git./linux/kernel/git/wsa/linux

Pull i2c fix from Wolfram Sang:

 - imx-lpi2c: fix clock error handling sequence in probe

* tag 'i2c-for-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: imx-lpi2c: Fix clock count when probe defers

6 weeks agoMerge tag 'sound-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Sat, 3 May 2025 16:30:44 +0000 (09:30 -0700)]
Merge tag 'sound-6.15-rc5' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A bunch of small fixes.  Mostly driver specific.

   - An OOB access fix in core UMP rawmidi conversion code

   - Fix for ASoC DAPM hw_params widget sequence

   - Make retry of usb_set_interface() errors for flaky devices

   - Fix redundant USB MIDI name strings

   - Quirks for various HP and ASUS models with HD-audio, and
     Jabra Evolve 65 USB-audio

   - Cirrus Kunit test fixes

   - Various fixes for ASoC Intel, stm32, renesas, imx-card, and
     simple-card"

* tag 'sound-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (30 commits)
  ASoC: amd: ps: fix for irq handler return status
  ASoC: simple-card-utils: Fix pointer check in graph_util_parse_link_direction
  ASoC: intel/sdw_utils: Add volume limit to cs35l56 speakers
  ASoC: intel/sdw_utils: Add volume limit to cs42l43 speakers
  ASoC: stm32: sai: add a check on minimal kernel frequency
  ASoC: stm32: sai: skip useless iterations on kernel rate loop
  ALSA: hda/realtek - Add more HP laptops which need mute led fixup
  ALSA: hda/realtek: Fix built-mic regression on other ASUS models
  ASoC: Intel: catpt: avoid type mismatch in dev_dbg() format
  ALSA: usb-audio: Fix duplicated name in MIDI substream names
  ALSA: ump: Fix buffer overflow at UMP SysEx message conversion
  ALSA: usb-audio: Add second USB ID for Jabra Evolve 65 headset
  ALSA: hda/realtek: Add quirk for HP Spectre x360 15-df1xxx
  ALSA: hda: Apply volume control on speaker+lineout for HP EliteStudio AIO
  ASoC: Intel: bytcr_rt5640: Add DMI quirk for Acer Aspire SW3-013
  ASoC: amd: acp: Fix devm_snd_soc_register_card(acp-pdm-mach) failure
  ASoC: amd: acp: Fix NULL pointer deref in acp_i2s_set_tdm_slot
  ASoC: amd: acp: Fix NULL pointer deref on acp resume path
  ASoC: renesas: rz-ssi: Use NOIRQ_SYSTEM_SLEEP_PM_OPS()
  ASoC: soc-acpi-intel-ptl-match: add empty item to ptl_cs42l43_l3[]
  ...

6 weeks agodt-bindings: display: ltk500hd1829: add port property
Heiko Stuebner [Wed, 30 Apr 2025 08:28:50 +0000 (10:28 +0200)]
dt-bindings: display: ltk500hd1829: add port property

The panel can be connected to via graph nodes, so allow the port property.

Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250430082850.244199-3-heiko@sntech.de
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
6 weeks agodt-bindings: display: ltk050h3146w: add port property
Heiko Stuebner [Wed, 30 Apr 2025 08:28:49 +0000 (10:28 +0200)]
dt-bindings: display: ltk050h3146w: add port property

The panel can be connected to via graph nodes, so allow the port property.

This fixes dtc checker warnings like:
>> arch/arm64/boot/dts/rockchip/rk3588-tiger-haikou-haikou-video-demo.dtb: panel@0 (leadtek,ltk050h3148w): 'port' does not match any of the regexes: 'pinctrl-[0-9]+'
    from schema $id: http://devicetree.org/schemas/display/panel/leadtek,ltk050h3146w.yaml#
   arch/arm64/boot/dts/rockchip/rk3588-tiger-haikou-haikou-video-demo.dtb: /edp@fdec0000: failed to match any schema with compatible: ['rockchip,rk3588-edp']

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202504300218.VDqQqGTT-lkp@intel.com/
Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250430082850.244199-2-heiko@sntech.de
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
6 weeks agoMerge tag 'spi-fix-v6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brooni...
Linus Torvalds [Fri, 2 May 2025 23:33:50 +0000 (16:33 -0700)]
Merge tag 'spi-fix-v6.15-rc4' of git://git./linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A fairly small pile of fixes, plus one new compatible string addition
  to the Synopsis driver for a new platform.

  The most notable thing is the fix for divide by zeros in spi-mem if an
  operation has no dummy bytes"

* tag 'spi-fix-v6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: tegra114: Don't fail set_cs_timing when delays are zero
  spi: spi-qpic-snand: fix NAND_READ_LOCATION_2 register handling
  spi: spi-mem: Add fix to avoid divide error
  spi: dt-bindings: snps,dw-apb-ssi: Add compatible for SOPHGO SG2042 SoC
  spi: dt-bindings: snps,dw-apb-ssi: Merge duplicate compatible entry
  spi: spi-qpic-snand: propagate errors from qcom_spi_block_erase()
  spi: stm32-ospi: Fix an error handling path in stm32_ospi_probe()

6 weeks agodrm/gpusvm: remove unused pages pointer
Dafna Hirschfeld [Tue, 22 Apr 2025 09:59:43 +0000 (12:59 +0300)]
drm/gpusvm: remove unused pages pointer

The pages pointer is not used, remove it.

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250422095943.1198393-1-dafna.hirschfeld@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
6 weeks agoMerge tag 'pm-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Fri, 2 May 2025 21:41:56 +0000 (14:41 -0700)]
Merge tag 'pm-6.15-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix three recent regressions, two in cpufreq and one in the
  Intel Soundwire driver, and an unchecked MSR access in the
  intel_pstate driver:

   - Fix a recent regression causing systems where frequency tables are
     used by cpufreq to have issues with setting frequency limits
     (Rafael Wysocki)

   - Fix a recent regressions causing frequency boost settings to become
     out-of-sync if platform firmware updates the registers associated
     with frequency boost during system resume (Viresh Kumar)

   - Fix a recent regression causing resume failures to occur in the
     Intel Soundwire driver if the device handled by it is in runtime
     suspend before a system-wide suspend (Rafael Wysocki)

   - Fix an unchecked MSR aceess in the intel_pstate driver occurring
     when CPUID indicates no turbo, but the driver attempts to enable
     turbo frequencies due to a misleading value read from an MSR
     (Srinivas Pandruvada)"

* tag 'pm-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: intel_pstate: Unchecked MSR aceess in legacy mode
  soundwire: intel_auxdevice: Fix system suspend/resume handling
  cpufreq: Fix setting policy limits when frequency tables are used
  cpufreq: ACPI: Re-sync CPU boost state on system resume

6 weeks agoMerge tag '6.15-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Fri, 2 May 2025 21:37:16 +0000 (14:37 -0700)]
Merge tag '6.15-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - fix posix mkdir error to ksmbd (also avoids crash in
   cifs_destroy_request_bufs)

 - two smb1 fixes: fixing querypath info and setpathinfo to old servers

 - fix rsize/wsize when not multiple of page size to address DIO
   reads/writes

* tag '6.15-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: ensure aligned IO sizes
  cifs: Fix changing times and read-only attr over SMB1 smb_set_file_info() function
  cifs: Fix and improve cifs_query_path_info() and cifs_query_file_info()
  smb: client: fix zero length for mkdir POSIX create context

6 weeks agoMerge tag 'drm-fixes-2025-05-03' of https://gitlab.freedesktop.org/drm/kernel
Linus Torvalds [Fri, 2 May 2025 21:24:21 +0000 (14:24 -0700)]
Merge tag 'drm-fixes-2025-05-03' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Weekly drm fixes, amdgpu and xe as usual, the new adp driver has a
  bunch of vblank fixes, then a bunch of small fixes across the board.

  Seems about the right level for this time in the release cycle.

  ttm:
   - docs warning fix

  kunit
   - fix leak in shmem tests

  fdinfo:
   - driver unbind race fix

  amdgpu:
   - Fix possible UAF in HDCP
   - XGMI dma-buf fix
   - NBIO 7.11 fix
   - VCN 5.0.1 fix

  xe:
   - EU stall locking fix and disabling on VF
   - Documentation fix kernel version supporting hwmon entries
   - SVM fixes on error handling

  i915:
   - Fix build for CONFIG_DRM_I915_PXP=n

  nouveau:
   - fix race condition in fence handling

  ivpu:
   - interrupt handling fix
   - D0i2 test mode fix

  adp:
   - vblank fixes

  mipi-dbi:
   - timing fix"

* tag 'drm-fixes-2025-05-03' of https://gitlab.freedesktop.org/drm/kernel: (23 commits)
  drm/gpusvm: set has_dma_mapping inside mapping loop
  drm/xe/hwmon: Fix kernel version documentation for temperature
  drm/xe/eustall: Do not support EU stall on SRIOV VF
  drm/xe/eustall: Resolve a possible circular locking dependency
  drm/amdgpu: Add DPG pause for VCN v5.0.1
  drm/amdgpu: Fix offset for HDP remap in nbio v7.11
  drm/amdgpu: Fail DMABUF map of XGMI-accessible memory
  drm/amd/display: Fix slab-use-after-free in hdcp
  drm/mipi-dbi: Fix blanking for non-16 bit formats
  drm/tests: shmem: Fix memleak
  drm/xe/guc: Fix capture of steering registers
  drm/xe/svm: fix dereferencing error pointer in drm_gpusvm_range_alloc()
  drm: Select DRM_KMS_HELPER from DRM_DEBUG_DP_MST_TOPOLOGY_REFS
  drm: adp: Remove pointless irq_lock spin lock
  drm: adp: Enable vblank interrupts in crtc's .atomic_enable
  drm: adp: Handle drm_crtc_vblank_get() errors
  drm: adp: Use spin_lock_irqsave for drm device event_lock
  drm/fdinfo: Protect against driver unbind
  drm/ttm: fix the warning for hit_low and evict_low
  accel/ivpu: Fix the D0i2 disable test mode
  ...

6 weeks agoMerge branch 'pm-cpufreq'
Rafael J. Wysocki [Fri, 2 May 2025 19:59:44 +0000 (21:59 +0200)]
Merge branch 'pm-cpufreq'

Merge cpufreq fixes for 6.15-rc5:

 - Fix a recent regression causing systems where frequency tables are
   used by cpufreq to have issues with setting frequency limits (Rafael
   Wysocki).

 - Fix a recent regressions causing frequency boost settings to become
   out-of-sync if platform firmware updates the registers associated
   with them during system resume (Viresh Kumar).

 - Fix an unchecked MSR aceess in the intel_pstate driver occurring when
   CPUID indicates no turbo, but the driver attempts to enable turbo
   frequencies due to a misleading value read from an MSR (Srinivas
   Pandruvada).

* pm-cpufreq:
  cpufreq: intel_pstate: Unchecked MSR aceess in legacy mode
  cpufreq: Fix setting policy limits when frequency tables are used
  cpufreq: ACPI: Re-sync CPU boost state on system resume

6 weeks agoirqchip/qcom-mpm: Prevent crash when trying to handle non-wake GPIOs
Stephan Gerhold [Fri, 2 May 2025 11:22:28 +0000 (13:22 +0200)]
irqchip/qcom-mpm: Prevent crash when trying to handle non-wake GPIOs

On Qualcomm chipsets not all GPIOs are wakeup capable. Those GPIOs do not
have a corresponding MPM pin and should not be handled inside the MPM
driver. The IRQ domain hierarchy is always applied, so it's required to
explicitly disconnect the hierarchy for those. The pinctrl-msm driver marks
these with GPIO_NO_WAKE_IRQ. qcom-pdc has a check for this, but
irq-qcom-mpm is currently missing the check. This is causing crashes when
setting up interrupts for non-wake GPIOs:

 root@rb1:~# gpiomon -c gpiochip1 10
   irq: IRQ159: trimming hierarchy from :soc@0:interrupt-controller@f200000-1
   Unable to handle kernel paging request at virtual address ffff8000a1dc3820
   Hardware name: Qualcomm Technologies, Inc. Robotics RB1 (DT)
   pc : mpm_set_type+0x80/0xcc
   lr : mpm_set_type+0x5c/0xcc
   Call trace:
    mpm_set_type+0x80/0xcc (P)
    qcom_mpm_set_type+0x64/0x158
    irq_chip_set_type_parent+0x20/0x38
    msm_gpio_irq_set_type+0x50/0x530
    __irq_set_trigger+0x60/0x184
    __setup_irq+0x304/0x6bc
    request_threaded_irq+0xc8/0x19c
    edge_detector_setup+0x260/0x364
    linereq_create+0x420/0x5a8
    gpio_ioctl+0x2d4/0x6c0

Fix this by copying the check for GPIO_NO_WAKE_IRQ from qcom-pdc.c, so that
MPM is removed entirely from the hierarchy for non-wake GPIOs.

Fixes: a6199bb514d8 ("irqchip: Add Qualcomm MPM controller driver")
Reported-by: Alexey Klimov <alexey.klimov@linaro.org>
Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Alexey Klimov <alexey.klimov@linaro.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20250502-irq-qcom-mpm-fix-no-wake-v1-1-8a1eafcd28d4@linaro.org
6 weeks agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Fri, 2 May 2025 18:14:58 +0000 (11:14 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Two minor updates, both in drivers"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: core: Remove redundant query_complete trace
  scsi: myrb: Fix spelling mistake "statux" -> "status"

6 weeks agoMerge tag 'block-6.15-20250502' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 2 May 2025 17:24:37 +0000 (10:24 -0700)]
Merge tag 'block-6.15-20250502' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - NVMe pull request via Christoph:
     - fix queue unquiesce check on PCI slot_reset (Keith Busch)
     - fix premature queue removal and I/O failover in nvme-tcp (Michael
       Liang)
     - don't restore null sk_state_change (Alistair Francis)
     - select CONFIG_TLS where needed (Alistair Francis)
     - always free derived key data (Hannes Reinecke)
     - more quirks (Wentao Guan)

 - ublk zero copy fix

 - ublk selftest fix for UBLK_F_NEED_GET_DATA

* tag 'block-6.15-20250502' of git://git.kernel.dk/linux:
  nvmet-auth: always free derived key data
  nvmet-tcp: don't restore null sk_state_change
  nvmet-tcp: select CONFIG_TLS from CONFIG_NVME_TARGET_TCP_TLS
  nvme-tcp: select CONFIG_TLS from CONFIG_NVME_TCP_TLS
  nvme-tcp: fix premature queue removal and I/O failover
  nvme-pci: add quirks for WDC Blue SN550 15b7:5009
  nvme-pci: add quirks for device 126f:1001
  nvme-pci: fix queue unquiesce check on slot_reset
  ublk: remove the check of ublk_need_req_ref() from __ublk_check_and_get_req
  ublk: enhance check for register/unregister io buffer command
  ublk: decouple zero copy from user copy
  selftests: ublk: fix UBLK_F_NEED_GET_DATA

6 weeks agoMerge tag 'io_uring-6.15-20250502' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 2 May 2025 17:21:34 +0000 (10:21 -0700)]
Merge tag 'io_uring-6.15-20250502' of git://git.kernel.dk/linux

Pull io_uring fix from Jens Axboe:
 "Just a single fix, annotating the fdinfo side SQ/CQ head/tail reads
  with data_race() as they are known racy.

  Only serves to silence syzbot testing, by definition these debug
  outputs are going to be racy as they may change as soon as we've read
  them"

* tag 'io_uring-6.15-20250502' of git://git.kernel.dk/linux:
  io_uring/fdinfo: annotate racy sq/cq head/tail reads

6 weeks agoMerge tag 'bcachefs-2025-05-01' of git://evilpiepirate.org/bcachefs
Linus Torvalds [Fri, 2 May 2025 16:12:29 +0000 (09:12 -0700)]
Merge tag 'bcachefs-2025-05-01' of git://evilpiepirate.org/bcachefs

Pull bcachefs fixes from Kent Overstreet:
 "Lots of assorted small fixes...

   - Some repair path fixes, a fix for -ENOMEM when reconstructing lots
     of alloc info on large filesystems, upgrade for ancient 0.14
     filesystems, etc.

   - Various assert tweaks; assert -> ERO, ERO -> log the error in the
     superblock and continue

   - casefolding now uses d_ops like on other casefolding filesystems

   - fix device label create on device add, fix bucket array resize on
     filesystem resize

   - fix xattrs with FORTIFY_SOURCE builds with gcc-15/clang"

* tag 'bcachefs-2025-05-01' of git://evilpiepirate.org/bcachefs: (22 commits)
  bcachefs: Remove incorrect __counted_by annotation
  bcachefs: add missing sched_annotate_sleep()
  bcachefs: Fix __bch2_dev_group_set()
  bcachefs: Kill ERO for i_blocks check in truncate
  bcachefs: check for inode.bi_sectors underflow
  bcachefs: Kill ERO in __bch2_i_sectors_acct()
  bcachefs: readdir fixes
  bcachefs: improve missing journal write device error message
  bcachefs: Topology error after insert is now an ERO
  bcachefs: Use bch2_kvmalloc() for journal keys array
  bcachefs: More informative error message when shutting down due to error
  bcachefs: btree_root_unreadable_and_scan_found_nothing autofix for non data btrees
  bcachefs: btree_node_data_missing is now autofix
  bcachefs: Don't generate alloc updates to invalid buckets
  bcachefs: Improve bch2_dev_bucket_missing()
  bcachefs: fix bch2_dev_buckets_resize()
  bcachefs: Add upgrade table entry from 0.14
  bcachefs: Run BCH_RECOVERY_PASS_reconstruct_snapshots on missing subvol -> snapshot
  bcachefs: Add missing utf8_unload()
  bcachefs: Emit unicode version message on startup
  ...

6 weeks agoMerge tag 'pinctrl-v6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Fri, 2 May 2025 16:04:25 +0000 (09:04 -0700)]
Merge tag 'pinctrl-v6.15-2' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:

 - Fix potential NULL dereference in the i.MX driver

 - Fix the pull up/down resistor values in the Meson driver

 - Fix the mapping of the PHY LED pins in the Airhoa driver

 - Fix EINT interrupts on older controllers and a debounce value issue
   in the Mediatek driver

 - Fix an erronoeus PINGROUP define in the Qualcomm driver

* tag 'pinctrl-v6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: qcom: Fix PINGROUP definition for sm8750
  pinctrl: mediatek: common-v1: Fix error checking in mtk_eint_init()
  pinctrl: mediatek: Fix new design debounce issue
  pinctrl: mediatek: common-v1: Fix EINT breakage on older controllers
  pinctrl: airoha: fix wrong PHY LED mapping and PHY2 LED defines
  pinctrl: meson: define the pull up/down resistor value as 60 kOhm
  pinctrl: imx: Return NULL if no group is matched and found

6 weeks agoMerge tag 'iommu-fixes-v6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 2 May 2025 15:57:00 +0000 (08:57 -0700)]
Merge tag 'iommu-fixes-v6.15-rc4' of git://git./linux/kernel/git/iommu/linux

Pull iommu fixes from Joerg Roedel:
 "ARM-SMMU fixes:
   - Fix broken detection of the S2FWB feature
   - Ensure page-size bitmap is initialised for SVA domains
   - Fix handling of SMMU client devices with duplicate Stream IDs
   - Don't fail SMMU probe if Stream IDs are aliased across clients

  Intel VT-d fixes:
   - Add quirk for IGFX device
   - Revert an ATS change to fix a boot failure

  AMD IOMMU:
   - Fix potential buffer overflow

  Core:
   - Fix for iommu_copy_struct_from_user()"

* tag 'iommu-fixes-v6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
  iommu/vt-d: Apply quirk_iommu_igfx for 8086:0044 (QM57/QS57)
  iommu/vt-d: Revert ATS timing change to fix boot failure
  iommu: Fix two issues in iommu_copy_struct_from_user()
  iommu/amd: Fix potential buffer overflow in parse_ivrs_acpihid
  iommu/arm-smmu-v3: Fail aliasing StreamIDs more gracefully
  iommu/arm-smmu-v3: Fix iommu_device_probe bug due to duplicated stream ids
  iommu/arm-smmu-v3: Fix pgsize_bit for sva domains
  iommu/arm-smmu-v3: Add missing S2FWB feature detection

6 weeks agoMerge tag 'slab-for-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka...
Linus Torvalds [Fri, 2 May 2025 15:50:10 +0000 (08:50 -0700)]
Merge tag 'slab-for-6.15-rc5' of git://git./linux/kernel/git/vbabka/slab

Pull slab fix from Vlastimil Babka:

 - Stable fix to avoid bugs due to leftover obj_ext after allocation
   profiling is disabled at runtime (Zhenhua Huang)

* tag 'slab-for-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
  mm, slab: clean up slab->obj_exts always

6 weeks agoMerge tag 'i2c-host-fixes-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel...
Wolfram Sang [Fri, 2 May 2025 14:31:35 +0000 (16:31 +0200)]
Merge tag 'i2c-host-fixes-6.15-rc5' of git://git./linux/kernel/git/andi.shyti/linux into i2c/for-current

i2c-host-fixes for v6.15-rc5

- imx-lpi2c: fix error handling sequence in probe

6 weeks agodrm/panic: Use a decimal fifo to avoid u64 by u64 divide
Jocelyn Falempe [Fri, 18 Apr 2025 16:48:16 +0000 (18:48 +0200)]
drm/panic: Use a decimal fifo to avoid u64 by u64 divide

On 32bits ARM, u64/u64 is not supported [1], so change the algorithm
to use a simple fifo with decimal digits as u8 instead.
This is slower but should compile on all architecture.

Link: https://lore.kernel.org/dri-devel/CANiq72ke45eOwckMhWHvmwxc03dxr4rnxxKvx+HvWdBLopZfrQ@mail.gmail.com/
Reported-by: Miguel Ojeda <ojeda@kernel.org>
Closes: https://lore.kernel.org/dri-devel/CANiq72ke45eOwckMhWHvmwxc03dxr4rnxxKvx+HvWdBLopZfrQ@mail.gmail.com/
Fixes: ccb8ce526807 ("ARM: 9441/1: rust: Enable Rust support for ARMv7")
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250418165059.560503-1-jfalempe@redhat.com
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
6 weeks agodrm: Remove unused function rcar_cmm_write
Jiapeng Chong [Wed, 19 Jun 2024 07:54:36 +0000 (15:54 +0800)]
drm: Remove unused function rcar_cmm_write

The function are defined in the rcar_cmm.c file, but not called
elsewhere, so delete the unused function.

drivers/gpu/drm/renesas/rcar-du/rcar_cmm.c:35:19: warning: unused function 'rcar_cmm_read'.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9364
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20240619075436.86407-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
6 weeks agodrm: rcar-du: Fix memory leak in rcar_du_vsps_init()
Biju Das [Thu, 16 Nov 2023 12:24:24 +0000 (12:24 +0000)]
drm: rcar-du: Fix memory leak in rcar_du_vsps_init()

The rcar_du_vsps_init() doesn't free the np allocated by
of_parse_phandle_with_fixed_args() for the non-error case.

Fix memory leak for the non-error case.

While at it, replace the label 'error'->'done' as it applies to non-error
case as well and update the error check condition for rcar_du_vsp_init()
to avoid breakage in future, if it returns positive value.

Fixes: 3e81374e2014 ("drm: rcar-du: Support multiple sources from the same VSP")
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20231116122424.80136-1-biju.das.jz@bp.renesas.com
Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
6 weeks agoMerge tag 'drm-misc-next-2025-04-29' of https://gitlab.freedesktop.org/drm/misc/kerne...
Dave Airlie [Fri, 2 May 2025 04:23:29 +0000 (14:23 +1000)]
Merge tag 'drm-misc-next-2025-04-29' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.16-rc1:

UAPI Changes:
- panthor now fails in mmap_offset call for a BO created with
  DRM_PANTHOR_BO_NO_MMAP.
- Add DRM_PANTHOR_BO_SET_LABEL ioctl and label panthor kernel BOs.

Cross-subsystem Changes:
- Add kmap_local_page_try_from_panic for drm/panic.
- Add DT bindings for panels.
- Update DT bindings for imagination.
- Extend %p4cc in lib/vsprintf.c to support fourcc printing.

Core Changes:
- Remove the disgusting turds.
- Register definition updates for DP.
- DisplayID timing blocks refactor.
- Remove now unused mipi_dsi_dsc_write_seq.
- Convert panel drivers to not return error in prepare/enable and
  unprepare/disable calls.

Driver Changes:
- Assorted small fixes and featuers for rockchip, panthor, accel/ivpu,
  accel/amdxdna, hisilicon/hibmc, i915/backlight, sysfb, accel/qaic,
  udl, etnaviv, virtio, xlnx, panel/boe-bf060y8m-aj0, bridge/synopsis,
  panthor, panel/samsung/sofef00m, lontium/lt9611uxc, nouveau, panel/himax-hx8279,
  panfrost, st7571-i2c.
- Improve hibmc interrupt handling and add HPD support.
- Add NLT NL13676BC25-03F, Tianma TM070JDHG34-00, Himax HX8279/HX8279-D
  DDIC, Visionox G2647FB105, Sitronix ST7571 LCD Controller, panels.
- Add zpos, alpha and blend to renesas.
- Convert drivers to use drm_gem_is_imported, replacing gem->import_attach.
- Support TI AM68 GPU in imagination.
- Support panic handler in virtio.
- Add support to get the panel from DP AUX bus in rockchip and add
  RK3588 support.
- Make sofef00 only support the sofef00 panel, not another unrelated
  one.
- Add debugfs BO dumping support to panthor, and print associated labels.
- Implement heartbeat based hangcheck in ivpu.
- Mass convert drivers to devm_drm_bridge_alloc api.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://lore.kernel.org/r/e2a958d9-e506-4962-8bae-0dbf2ecc000f@linux.intel.com
6 weeks agoMerge tag 'drm-xe-fixes-2025-05-01' of https://gitlab.freedesktop.org/drm/xe/kernel...
Dave Airlie [Fri, 2 May 2025 04:12:43 +0000 (14:12 +1000)]
Merge tag 'drm-xe-fixes-2025-05-01' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes

Driver Changes:
- Eustall locking fix and disabling on VF
- Documentation fix kernel version supporting hwmon entries
- SVM fixes on error handling

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/fqkoqvo62fbkvw6xoxoxutzozqksxxudbmqacjm3durid2pkak@imlxghgrk3ob
6 weeks agodrm/gpusvm: set has_dma_mapping inside mapping loop
Dafna Hirschfeld [Mon, 28 Apr 2025 02:47:52 +0000 (19:47 -0700)]
drm/gpusvm: set has_dma_mapping inside mapping loop

The 'has_dma_mapping' flag should be set once there is a
mapping so it could be unmapped in case of error.

v2:
- Resend for CI

Fixes: 99624bdff867 ("drm/gpusvm: Add support for GPU Shared Virtual Memory")
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250428024752.881292-1-matthew.brost@intel.com
(cherry picked from commit f64cf7b681af72d3f715c0d0fd72091a54471c1a)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
6 weeks agodrm/xe/hwmon: Fix kernel version documentation for temperature
Lucas De Marchi [Mon, 21 Apr 2025 15:15:38 +0000 (08:15 -0700)]
drm/xe/hwmon: Fix kernel version documentation for temperature

The version in the sysfs attribute should correspond to the version in
which this is enabled and visible for end users. It usually doesn't
correspond to the version in which the patch was developed, but rather a
release that will contain it. Update them to 6.15.

Fixes: dac328dea701 ("drm/xe/hwmon: expose package and vram temperature")
Reported-by: Ulisses Furquim <ulisses.furquim@intel.com>
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/4840
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Raag Jadav <raag.jadav@intel.com>
Link: https://lore.kernel.org/r/20250421-hwmon-doc-fix-v1-1-9f68db702249@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 8500393a8e6c58e5e7c135133ad792fc6fd5b6f4)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
6 weeks agotracing: Do not take trace_event_sem in print_event_fields()
Steven Rostedt [Fri, 2 May 2025 02:41:28 +0000 (22:41 -0400)]
tracing: Do not take trace_event_sem in print_event_fields()

On some paths in print_event_fields() it takes the trace_event_sem for
read, even though it should always be held when the function is called.

Remove the taking of that mutex and add a lockdep_assert_held_read() to
make sure the trace_event_sem is held when print_event_fields() is called.

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20250501224128.0b1f0571@batman.local.home
Fixes: 80a76994b2d88 ("tracing: Add "fields" option to show raw trace event fields")
Reported-by: syzbot+441582c1592938fccf09@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/6813ff5e.050a0220.14dd7d.001b.GAE@google.com/
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
6 weeks agoMerge tag 'amd-drm-fixes-6.15-2025-05-01' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Thu, 1 May 2025 20:27:09 +0000 (06:27 +1000)]
Merge tag 'amd-drm-fixes-6.15-2025-05-01' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.15-2025-05-01:

amdgpu:
- Fix possible UAF in HDCP
- XGMI dma-buf fix
- NBIO 7.11 fix
- VCN 5.0.1 fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20250501185634.4132187-1-alexander.deucher@amd.com
6 weeks agobcachefs: Remove incorrect __counted_by annotation
Alan Huang [Thu, 1 May 2025 20:01:31 +0000 (04:01 +0800)]
bcachefs: Remove incorrect __counted_by annotation

This actually reverts 86e92eeeb237 ("bcachefs: Annotate struct bch_xattr
with __counted_by()").

After the x_name, there is a value. According to the disscussion[1],
__counted_by assumes that the flexible array member contains exactly
the amount of elements that are specified. Now there are users came across
a false positive detection of an out of bounds write caused by
the __counted_by here[2], so revert that.

[1] https://lore.kernel.org/lkml/Zv8VDKWN1GzLRT-_@archlinux/T/#m0ce9541c5070146320efd4f928cc1ff8de69e9b2
[2] https://privatebin.net/?a0d4e97d590d71e1#9bLmp2Kb5NU6X6cZEucchDcu88HzUQwHUah8okKPReEt

Signed-off-by: Alan Huang <mmpgouride@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
6 weeks agospi: tegra114: Don't fail set_cs_timing when delays are zero
Aaron Kling [Thu, 24 Apr 2025 02:03:03 +0000 (21:03 -0500)]
spi: tegra114: Don't fail set_cs_timing when delays are zero

The original code would skip null delay pointers, but when the pointers
were converted to point within the spi_device struct, the check was not
updated to skip delays of zero. Hence all spi devices that didn't set
delays would fail to probe.

Fixes: 04e6bb0d6bb1 ("spi: modify set_cs_timing parameter")
Cc: stable@vger.kernel.org
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Link: https://patch.msgid.link/20250423-spi-tegra114-v1-1-2d608bcc12f9@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agotracing: Fix trace_adjust_address() when there is no modules in scratch area
Steven Rostedt [Thu, 1 May 2025 19:19:09 +0000 (15:19 -0400)]
tracing: Fix trace_adjust_address() when there is no modules in scratch area

The function trace_adjust_address() is used to map addresses of modules
stored in the persistent memory and are also loaded in the current boot to
return the current address for the module.

If there's only one module entry, it will simply use that, otherwise it
performs a bsearch of the entry array to find the modules to offset with.

The issue is if there are no modules in the array. The code does not
account for that and ends up referencing the first element in the array
which does not exist and causes a crash.

If nr_entries is zero, exit out early as if this was a core kernel
address.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20250501151909.65910359@gandalf.local.home
Fixes: 35a380ddbc653 ("tracing: Show last module text symbols in the stacktrace")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
6 weeks agoftrace: Fix NULL memory allocation check
Colin Ian King [Tue, 22 Apr 2025 22:13:35 +0000 (23:13 +0100)]
ftrace: Fix NULL memory allocation check

The check for a failed memory location is incorrectly checking
the wrong level of pointer indirection by checking !filter_hash
rather than !*filter_hash.  Fix this.

Cc: asami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20250422221335.89896-1-colin.i.king@gmail.com
Fixes: 0ae6b8ce200d ("ftrace: Fix accounting of subop hashes")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
6 weeks agoMerge tag 'drm-intel-fixes-2025-04-30' of https://gitlab.freedesktop.org/drm/i915...
Dave Airlie [Thu, 1 May 2025 19:42:10 +0000 (05:42 +1000)]
Merge tag 'drm-intel-fixes-2025-04-30' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes

drm/i915 fixes for v6.15-rc5:
- Fix build for CONFIG_DRM_I915_PXP=n

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/87selquhpe.fsf@intel.com
6 weeks agotracing: Fix oob write in trace_seq_to_buffer()
Jeongjun Park [Tue, 22 Apr 2025 11:30:25 +0000 (20:30 +0900)]
tracing: Fix oob write in trace_seq_to_buffer()

syzbot reported this bug:
==================================================================
BUG: KASAN: slab-out-of-bounds in trace_seq_to_buffer kernel/trace/trace.c:1830 [inline]
BUG: KASAN: slab-out-of-bounds in tracing_splice_read_pipe+0x6be/0xdd0 kernel/trace/trace.c:6822
Write of size 4507 at addr ffff888032b6b000 by task syz.2.320/7260

CPU: 1 UID: 0 PID: 7260 Comm: syz.2.320 Not tainted 6.15.0-rc1-syzkaller-00301-g3bde70a2c827 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xc3/0x670 mm/kasan/report.c:521
 kasan_report+0xe0/0x110 mm/kasan/report.c:634
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0xef/0x1a0 mm/kasan/generic.c:189
 __asan_memcpy+0x3c/0x60 mm/kasan/shadow.c:106
 trace_seq_to_buffer kernel/trace/trace.c:1830 [inline]
 tracing_splice_read_pipe+0x6be/0xdd0 kernel/trace/trace.c:6822
 ....
==================================================================

It has been reported that trace_seq_to_buffer() tries to copy more data
than PAGE_SIZE to buf. Therefore, to prevent this, we should use the
smaller of trace_seq_used(&iter->seq) and PAGE_SIZE as an argument.

Link: https://lore.kernel.org/20250422113026.13308-1-aha310510@gmail.com
Reported-by: syzbot+c8cd2d2c412b868263fb@syzkaller.appspotmail.com
Fixes: 3c56819b14b0 ("tracing: splice support for tracing_pipe")
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Jeongjun Park <aha310510@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
6 weeks agobcachefs: add missing sched_annotate_sleep()
Kent Overstreet [Thu, 1 May 2025 16:38:00 +0000 (12:38 -0400)]
bcachefs: add missing sched_annotate_sleep()

00594 ------------[ cut here ]------------
00594 do not call blocking ops when !TASK_RUNNING; state=2 set at [<000000003e51ef4a>] prepare_to_wait_event+0x5c/0x1c0
00594 WARNING: CPU: 12 PID: 1117 at kernel/sched/core.c:8741 __might_sleep+0x74/0x88
00594 Modules linked in:
00594 CPU: 12 UID: 0 PID: 1117 Comm: umount Not tainted 6.15.0-rc4-ktest-g3a72e369412d #21845 PREEMPT
00594 Hardware name: linux,dummy-virt (DT)
00594 pstate: 60001005 (nZCv daif -PAN -UAO -TCO -DIT +SSBS BTYPE=--)
00594 pc : __might_sleep+0x74/0x88
00594 lr : __might_sleep+0x74/0x88
00594 sp : ffffff80c8d67a90
00594 x29: ffffff80c8d67a90 x28: ffffff80f5903500 x27: 0000000000000000
00594 x26: 0000000000000000 x25: ffffff80cf5002a0 x24: ffffffc087dad000
00594 x23: ffffff80c8d67b40 x22: 0000000000000000 x21: 0000000000000000
00594 x20: 0000000000000242 x19: ffffffc080b92020 x18: 00000000ffffffff
00594 x17: 30303c5b20746120 x16: 74657320323d6574 x15: 617473203b474e49
00594 x14: 0000000000000001 x13: 00000000000c0000 x12: ffffff80facc0000
00594 x11: 0000000000000001 x10: 0000000000000001 x9 : ffffffc0800b0774
00594 x8 : c0000000fffbffff x7 : ffffffc087dac670 x6 : 00000000015fffa8
00594 x5 : ffffff80facbffa8 x4 : ffffff80fbd30b90 x3 : 0000000000000000
00594 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff80f5903500
00594 Call trace:
00594  __might_sleep+0x74/0x88 (P)
00594  __mutex_lock+0x64/0x8d8
00594  mutex_lock_nested+0x28/0x38
00594  bch2_fs_ec_flush+0xf8/0x128
00594  __bch2_fs_read_only+0x54/0x1d8
00594  bch2_fs_read_only+0x3e0/0x438
00594  __bch2_fs_stop+0x5c/0x250
00594  bch2_put_super+0x18/0x28
00594  generic_shutdown_super+0x6c/0x140
00594  bch2_kill_sb+0x1c/0x38
00594  deactivate_locked_super+0x54/0xd0
00594  deactivate_super+0x70/0x90
00594  cleanup_mnt+0xec/0x188
00594  __cleanup_mnt+0x18/0x28
00594  task_work_run+0x90/0xd8
00594  do_notify_resume+0x138/0x148
00594  el0_svc+0x9c/0xa0
00594  el0t_64_sync_handler+0x104/0x130
00594  el0t_64_sync+0x154/0x158

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
6 weeks agoMerge tag 'net-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 1 May 2025 17:37:49 +0000 (10:37 -0700)]
Merge tag 'net-6.15-rc5' of git://git./linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Happy May Day.

  Things have calmed down on our end (knock on wood), no outstanding
  investigations. Including fixes from Bluetooth and WiFi.

  Current release - fix to a fix:

   - igc: fix lock order in igc_ptp_reset

  Current release - new code bugs:

   - Revert "wifi: iwlwifi: make no_160 more generic", fixes regression
     to Killer line of devices reported by a number of people

   - Revert "wifi: iwlwifi: add support for BE213", initial FW is too
     buggy

   - number of fixes for mld, the new Intel WiFi subdriver

  Previous releases - regressions:

   - wifi: mac80211: restore monitor for outgoing frames

   - drv: vmxnet3: fix malformed packet sizing in vmxnet3_process_xdp

   - eth: bnxt_en: fix timestamping FIFO getting out of sync on reset,
     delivering stale timestamps

   - use sock_gen_put() in the TCP fraglist GRO heuristic, don't assume
     every socket is a full socket

  Previous releases - always broken:

   - sched: adapt qdiscs for reentrant enqueue cases, fix list
     corruptions

   - xsk: fix race condition in AF_XDP generic RX path, shared UMEM
     can't be protected by a per-socket lock

   - eth: mtk-star-emac: fix spinlock recursion issues on rx/tx poll

   - btusb: avoid NULL pointer dereference in skb_dequeue()

   - dsa: felix: fix broken taprio gate states after clock jump"

* tag 'net-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (83 commits)
  net: vertexcom: mse102x: Fix RX error handling
  net: vertexcom: mse102x: Add range check for CMD_RTS
  net: vertexcom: mse102x: Fix LEN_MASK
  net: vertexcom: mse102x: Fix possible stuck of SPI interrupt
  net: hns3: defer calling ptp_clock_register()
  net: hns3: fixed debugfs tm_qset size
  net: hns3: fix an interrupt residual problem
  net: hns3: store rx VLAN tag offload state for VF
  octeon_ep: Fix host hang issue during device reboot
  net: fec: ERR007885 Workaround for conventional TX
  net: lan743x: Fix memleak issue when GSO enabled
  ptp: ocp: Fix NULL dereference in Adva board SMA sysfs operations
  net: use sock_gen_put() when sk_state is TCP_TIME_WAIT
  bnxt_en: fix module unload sequence
  bnxt_en: Fix ethtool -d byte order for 32-bit values
  bnxt_en: Fix out-of-bound memcpy() during ethtool -w
  bnxt_en: Fix coredump logic to free allocated buffer
  bnxt_en: delay pci_alloc_irq_vectors() in the AER path
  bnxt_en: call pci_alloc_irq_vectors() after bnxt_reserve_rings()
  bnxt_en: Add missing skb_mark_for_recycle() in bnxt_rx_vlan()
  ...

6 weeks agoarm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays
Will Deacon [Thu, 1 May 2025 10:47:47 +0000 (11:47 +0100)]
arm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays

Commit a5951389e58d ("arm64: errata: Add newer ARM cores to the
spectre_bhb_loop_affected() lists") added some additional CPUs to the
Spectre-BHB workaround, including some new arrays for designs that
require new 'k' values for the workaround to be effective.

Unfortunately, the new arrays omitted the sentinel entry and so
is_midr_in_range_list() will walk off the end when it doesn't find a
match. With UBSAN enabled, this leads to a crash during boot when
is_midr_in_range_list() is inlined (which was more common prior to
c8c2647e69be ("arm64: Make  _midr_in_range_list() an exported
function")):

 |  Internal error: aarch64 BRK: 00000000f2000001 [#1] PREEMPT SMP
 |  pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 |  pc : spectre_bhb_loop_affected+0x28/0x30
 |  lr : is_spectre_bhb_affected+0x170/0x190
 | [...]
 |  Call trace:
 |   spectre_bhb_loop_affected+0x28/0x30
 |   update_cpu_capabilities+0xc0/0x184
 |   init_cpu_features+0x188/0x1a4
 |   cpuinfo_store_boot_cpu+0x4c/0x60
 |   smp_prepare_boot_cpu+0x38/0x54
 |   start_kernel+0x8c/0x478
 |   __primary_switched+0xc8/0xd4
 |  Code: 6b09011f 54000061 52801080 d65f03c0 (d4200020)
 |  ---[ end trace 0000000000000000 ]---
 |  Kernel panic - not syncing: aarch64 BRK: Fatal exception

Add the missing sentinel entries.

Cc: Lee Jones <lee@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Doug Anderson <dianders@chromium.org>
Cc: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Cc: <stable@vger.kernel.org>
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes: a5951389e58d ("arm64: errata: Add newer ARM cores to the spectre_bhb_loop_affected() lists")
Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Lee Jones <lee@kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250501104747.28431-1-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
6 weeks agodrm/xe/eustall: Do not support EU stall on SRIOV VF
Harish Chegondi [Mon, 21 Apr 2025 05:59:01 +0000 (22:59 -0700)]
drm/xe/eustall: Do not support EU stall on SRIOV VF

EU stall sampling is not supported on SRIOV VF. Do not
initialize or open EU stall stream on SRIOV VF.

Fixes: 9a0b11d4cf3b ("drm/xe/eustall: Add support to init, enable and disable EU stall sampling")
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://lore.kernel.org/r/10db5d1c7e17aadca7078ff74575b7ffc0d5d6b8.1745215022.git.harish.chegondi@intel.com
(cherry picked from commit 6ed20625a4b8189a1bd6598aa58e03147ce378ee)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
6 weeks agodrm/xe/eustall: Resolve a possible circular locking dependency
Harish Chegondi [Fri, 18 Apr 2025 00:07:17 +0000 (17:07 -0700)]
drm/xe/eustall: Resolve a possible circular locking dependency

Use a separate lock in the polling function eu_stall_data_buf_poll()
instead of eu_stall->stream_lock. This would prevent a possible
circular locking dependency leading to a deadlock as described below.
This would also require additional locking with the new lock in
the read function.

<4> [787.192986] ======================================================
<4> [787.192988] WARNING: possible circular locking dependency detected
<4> [787.192991] 6.14.0-rc7-xe+ #1 Tainted: G     U
<4> [787.192993] ------------------------------------------------------
<4> [787.192994] xe_eu_stall/20093 is trying to acquire lock:
<4> [787.192996] ffff88819847e2c0 ((work_completion)
(&(&stream->buf_poll_work)->work)), at: __flush_work+0x1f8/0x5e0
<4> [787.193005] but task is already holding lock:
<4> [787.193007] ffff88814ce83ba8 (&gt->eu_stall->stream_lock){3:3},
at: xe_eu_stall_stream_ioctl+0x41/0x6a0 [xe]
<4> [787.193090] which lock already depends on the new lock.
<4> [787.193093] the existing dependency chain (in reverse order) is:
<4> [787.193095]
-> #1 (&gt->eu_stall->stream_lock){+.+.}-{3:3}:
<4> [787.193099]        __mutex_lock+0xb4/0xe40
<4> [787.193104]        mutex_lock_nested+0x1b/0x30
<4> [787.193106]        eu_stall_data_buf_poll_work_fn+0x44/0x1d0 [xe]
<4> [787.193155]        process_one_work+0x21c/0x740
<4> [787.193159]        worker_thread+0x1db/0x3c0
<4> [787.193161]        kthread+0x10d/0x270
<4> [787.193164]        ret_from_fork+0x44/0x70
<4> [787.193168]        ret_from_fork_asm+0x1a/0x30
<4> [787.193172]
-> #0 ((work_completion)(&(&stream->buf_poll_work)->work)){+.+.}-{0:0}:
<4> [787.193176]        __lock_acquire+0x1637/0x2810
<4> [787.193180]        lock_acquire+0xc9/0x300
<4> [787.193183]        __flush_work+0x219/0x5e0
<4> [787.193186]        cancel_delayed_work_sync+0x87/0x90
<4> [787.193189]        xe_eu_stall_disable_locked+0x9a/0x260 [xe]
<4> [787.193237]        xe_eu_stall_stream_ioctl+0x5b/0x6a0 [xe]
<4> [787.193285]        __x64_sys_ioctl+0xa4/0xe0
<4> [787.193289]        x64_sys_call+0x131e/0x2650
<4> [787.193292]        do_syscall_64+0x91/0x180
<4> [787.193295]        entry_SYSCALL_64_after_hwframe+0x76/0x7e
<4> [787.193299]
other info that might help us debug this:
<4> [787.193302]  Possible unsafe locking scenario:
<4> [787.193304]        CPU0                    CPU1
<4> [787.193305]        ----                    ----
<4> [787.193306]   lock(&gt->eu_stall->stream_lock);
<4> [787.193308]                        lock((work_completion)
(&(&stream->buf_poll_work)->work));
<4> [787.193311]                        lock(&gt->eu_stall->stream_lock);
<4> [787.193313]   lock((work_completion)
(&(&stream->buf_poll_work)->work));
<4> [787.193315]
 *** DEADLOCK ***

Fixes: 760edec939685 ("drm/xe/eustall: Add support to read() and poll() EU stall data")
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/4598
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://lore.kernel.org/r/c896932fca84f79db2df5942911997ed77b2b9b6.1744934656.git.harish.chegondi@intel.com
(cherry picked from commit c2b1f1b8641372bb2e563c49eb25632623a860fc)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
6 weeks agobcachefs: Fix __bch2_dev_group_set()
Kent Overstreet [Thu, 1 May 2025 02:37:13 +0000 (22:37 -0400)]
bcachefs: Fix __bch2_dev_group_set()

bch2_sb_disk_groups_to_cpu() goes off of the superblock member info, so
we need to set that first.

Reported-by: Stijn Tintel <stijn@linux-ipv6.be>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
6 weeks agodrm/amdgpu: Add DPG pause for VCN v5.0.1
Sonny Jiang [Wed, 23 Apr 2025 16:32:01 +0000 (12:32 -0400)]
drm/amdgpu: Add DPG pause for VCN v5.0.1

For vcn5.0.1 only, enable DPG PAUSE to avoid DPG resets.

Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 3e5f86c14c3440171f2a3e7a68ceb739297726e9)

6 weeks agodrm/amdgpu: Fix offset for HDP remap in nbio v7.11
Lijo Lazar [Mon, 21 Apr 2025 07:55:51 +0000 (13:25 +0530)]
drm/amdgpu: Fix offset for HDP remap in nbio v7.11

APUs in passthrough mode use HDP flush. 0x7F000 offset used for
remapping HDP flush is mapped to VPE space which could get power gated.
Use another unused offset in BIF space.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit d8116a32cdbe456c7f511183eb9ab187e3d590fb)
Cc: stable@vger.kernel.org
6 weeks agodrm/amdgpu: Fail DMABUF map of XGMI-accessible memory
Felix Kuehling [Thu, 17 Apr 2025 16:02:09 +0000 (12:02 -0400)]
drm/amdgpu: Fail DMABUF map of XGMI-accessible memory

If peer memory is XGMI-accessible, we should never access it through PCIe
P2P DMA mappings. PCIe P2P is slower, has different coherence behaviour,
limited or no support for atomics, or may not work at all. Fail with a
warning if DMABUF mappings of such memory are attempted.

Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit dbe4c63689bc6b5fd3ab72650ea4b6a667e96a68)

6 weeks agodrm/amd/display: Fix slab-use-after-free in hdcp
Chris Bainbridge [Thu, 17 Apr 2025 21:50:05 +0000 (16:50 -0500)]
drm/amd/display: Fix slab-use-after-free in hdcp

The HDCP code in amdgpu_dm_hdcp.c copies pointers to amdgpu_dm_connector
objects without incrementing the kref reference counts. When using a
USB-C dock, and the dock is unplugged, the corresponding
amdgpu_dm_connector objects are freed, creating dangling pointers in the
HDCP code. When the dock is plugged back, the dangling pointers are
dereferenced, resulting in a slab-use-after-free:

[   66.775837] BUG: KASAN: slab-use-after-free in event_property_validate+0x42f/0x6c0 [amdgpu]
[   66.776171] Read of size 4 at addr ffff888127804120 by task kworker/0:1/10

[   66.776179] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.14.0-rc7-00180-g54505f727a38-dirty #233
[   66.776183] Hardware name: HP HP Pavilion Aero Laptop 13-be0xxx/8916, BIOS F.17 12/18/2024
[   66.776186] Workqueue: events event_property_validate [amdgpu]
[   66.776494] Call Trace:
[   66.776496]  <TASK>
[   66.776497]  dump_stack_lvl+0x70/0xa0
[   66.776504]  print_report+0x175/0x555
[   66.776507]  ? __virt_addr_valid+0x243/0x450
[   66.776510]  ? kasan_complete_mode_report_info+0x66/0x1c0
[   66.776515]  kasan_report+0xeb/0x1c0
[   66.776518]  ? event_property_validate+0x42f/0x6c0 [amdgpu]
[   66.776819]  ? event_property_validate+0x42f/0x6c0 [amdgpu]
[   66.777121]  __asan_report_load4_noabort+0x14/0x20
[   66.777124]  event_property_validate+0x42f/0x6c0 [amdgpu]
[   66.777342]  ? __lock_acquire+0x6b40/0x6b40
[   66.777347]  ? enable_assr+0x250/0x250 [amdgpu]
[   66.777571]  process_one_work+0x86b/0x1510
[   66.777575]  ? pwq_dec_nr_in_flight+0xcf0/0xcf0
[   66.777578]  ? assign_work+0x16b/0x280
[   66.777580]  ? lock_is_held_type+0xa3/0x130
[   66.777583]  worker_thread+0x5c0/0xfa0
[   66.777587]  ? process_one_work+0x1510/0x1510
[   66.777588]  kthread+0x3a2/0x840
[   66.777591]  ? kthread_is_per_cpu+0xd0/0xd0
[   66.777594]  ? trace_hardirqs_on+0x4f/0x60
[   66.777597]  ? _raw_spin_unlock_irq+0x27/0x60
[   66.777599]  ? calculate_sigpending+0x77/0xa0
[   66.777602]  ? kthread_is_per_cpu+0xd0/0xd0
[   66.777605]  ret_from_fork+0x40/0x90
[   66.777607]  ? kthread_is_per_cpu+0xd0/0xd0
[   66.777609]  ret_from_fork_asm+0x11/0x20
[   66.777614]  </TASK>

[   66.777643] Allocated by task 10:
[   66.777646]  kasan_save_stack+0x39/0x60
[   66.777649]  kasan_save_track+0x14/0x40
[   66.777652]  kasan_save_alloc_info+0x37/0x50
[   66.777655]  __kasan_kmalloc+0xbb/0xc0
[   66.777658]  __kmalloc_cache_noprof+0x1c8/0x4b0
[   66.777661]  dm_dp_add_mst_connector+0xdd/0x5c0 [amdgpu]
[   66.777880]  drm_dp_mst_port_add_connector+0x47e/0x770 [drm_display_helper]
[   66.777892]  drm_dp_send_link_address+0x1554/0x2bf0 [drm_display_helper]
[   66.777901]  drm_dp_check_and_send_link_address+0x187/0x1f0 [drm_display_helper]
[   66.777909]  drm_dp_mst_link_probe_work+0x2b8/0x410 [drm_display_helper]
[   66.777917]  process_one_work+0x86b/0x1510
[   66.777919]  worker_thread+0x5c0/0xfa0
[   66.777922]  kthread+0x3a2/0x840
[   66.777925]  ret_from_fork+0x40/0x90
[   66.777927]  ret_from_fork_asm+0x11/0x20

[   66.777932] Freed by task 1713:
[   66.777935]  kasan_save_stack+0x39/0x60
[   66.777938]  kasan_save_track+0x14/0x40
[   66.777940]  kasan_save_free_info+0x3b/0x60
[   66.777944]  __kasan_slab_free+0x52/0x70
[   66.777946]  kfree+0x13f/0x4b0
[   66.777949]  dm_dp_mst_connector_destroy+0xfa/0x150 [amdgpu]
[   66.778179]  drm_connector_free+0x7d/0xb0
[   66.778184]  drm_mode_object_put.part.0+0xee/0x160
[   66.778188]  drm_mode_object_put+0x37/0x50
[   66.778191]  drm_atomic_state_default_clear+0x220/0xd60
[   66.778194]  __drm_atomic_state_free+0x16e/0x2a0
[   66.778197]  drm_mode_atomic_ioctl+0x15ed/0x2ba0
[   66.778200]  drm_ioctl_kernel+0x17a/0x310
[   66.778203]  drm_ioctl+0x584/0xd10
[   66.778206]  amdgpu_drm_ioctl+0xd2/0x1c0 [amdgpu]
[   66.778375]  __x64_sys_ioctl+0x139/0x1a0
[   66.778378]  x64_sys_call+0xee7/0xfb0
[   66.778381]  do_syscall_64+0x87/0x140
[   66.778385]  entry_SYSCALL_64_after_hwframe+0x4b/0x53

Fix this by properly incrementing and decrementing the reference counts
when making and deleting copies of the amdgpu_dm_connector pointers.

(Mario: rebase on current code and update fixes tag)

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4006
Signed-off-by: Chris Bainbridge <chris.bainbridge@gmail.com>
Fixes: da3fd7ac0bcf3 ("drm/amd/display: Update CP property based on HW query")
Reviewed-by: Alex Hung <alex.hung@amd.com>
Link: https://lore.kernel.org/r/20250417215005.37964-1-mario.limonciello@amd.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit d4673f3c3b3dcb74e36e53cdfc880baa7a87b330)
Cc: stable@vger.kernel.org
6 weeks agoMerge branch 'net-vertexcom-mse102x-fix-rx-handling'
Jakub Kicinski [Thu, 1 May 2025 14:24:08 +0000 (07:24 -0700)]
Merge branch 'net-vertexcom-mse102x-fix-rx-handling'

Stefan Wahren says:

====================
net: vertexcom: mse102x: Fix RX handling

This series is the first part of two series for the Vertexcom driver.
It contains substantial fixes for the RX handling of the Vertexcom MSE102x.
====================

Link: https://patch.msgid.link/20250430133043.7722-1-wahrenst@gmx.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: vertexcom: mse102x: Fix RX error handling
Stefan Wahren [Wed, 30 Apr 2025 13:30:43 +0000 (15:30 +0200)]
net: vertexcom: mse102x: Fix RX error handling

In case the CMD_RTS got corrupted by interferences, the MSE102x
doesn't allow a retransmission of the command. Instead the Ethernet
frame must be shifted out of the SPI FIFO. Since the actual length is
unknown, assume the maximum possible value.

Fixes: 2f207cbf0dd4 ("net: vertexcom: Add MSE102x SPI support")
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250430133043.7722-5-wahrenst@gmx.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: vertexcom: mse102x: Add range check for CMD_RTS
Stefan Wahren [Wed, 30 Apr 2025 13:30:42 +0000 (15:30 +0200)]
net: vertexcom: mse102x: Add range check for CMD_RTS

Since there is no protection in the SPI protocol against electrical
interferences, the driver shouldn't blindly trust the length payload
of CMD_RTS. So introduce a bounds check for incoming frames.

Fixes: 2f207cbf0dd4 ("net: vertexcom: Add MSE102x SPI support")
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250430133043.7722-4-wahrenst@gmx.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: vertexcom: mse102x: Fix LEN_MASK
Stefan Wahren [Wed, 30 Apr 2025 13:30:41 +0000 (15:30 +0200)]
net: vertexcom: mse102x: Fix LEN_MASK

The LEN_MASK for CMD_RTS doesn't cover the whole parameter mask.
The Bit 11 is reserved, so adjust LEN_MASK accordingly.

Fixes: 2f207cbf0dd4 ("net: vertexcom: Add MSE102x SPI support")
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250430133043.7722-3-wahrenst@gmx.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: vertexcom: mse102x: Fix possible stuck of SPI interrupt
Stefan Wahren [Wed, 30 Apr 2025 13:30:40 +0000 (15:30 +0200)]
net: vertexcom: mse102x: Fix possible stuck of SPI interrupt

The MSE102x doesn't provide any SPI commands for interrupt handling.
So in case the interrupt fired before the driver requests the IRQ,
the interrupt will never fire again. In order to fix this always poll
for pending packets after opening the interface.

Fixes: 2f207cbf0dd4 ("net: vertexcom: Add MSE102x SPI support")
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250430133043.7722-2-wahrenst@gmx.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agoMerge branch 'there-are-some-bugfix-for-the-hns3-ethernet-driver'
Jakub Kicinski [Thu, 1 May 2025 14:19:52 +0000 (07:19 -0700)]
Merge branch 'there-are-some-bugfix-for-the-hns3-ethernet-driver'

Jijie Shao says:

====================
There are some bugfix for the HNS3 ethernet driver
====================

Link: https://patch.msgid.link/20250430093052.2400464-1-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: hns3: defer calling ptp_clock_register()
Jian Shen [Wed, 30 Apr 2025 09:30:52 +0000 (17:30 +0800)]
net: hns3: defer calling ptp_clock_register()

Currently the ptp_clock_register() is called before relative
ptp resource ready. It may cause unexpected result when upper
layer called the ptp API during the timewindow. Fix it by
moving the ptp_clock_register() to the function end.

Fixes: 0bf5eb788512 ("net: hns3: add support for PTP")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20250430093052.2400464-5-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: hns3: fixed debugfs tm_qset size
Hao Lan [Wed, 30 Apr 2025 09:30:51 +0000 (17:30 +0800)]
net: hns3: fixed debugfs tm_qset size

The size of the tm_qset file of debugfs is limited to 64 KB,
which is too small in the scenario with 1280 qsets.
The size needs to be expanded to 1 MB.

Fixes: 5e69ea7ee2a6 ("net: hns3: refactor the debugfs process")
Signed-off-by: Hao Lan <lanhao@huawei.com>
Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Link: https://patch.msgid.link/20250430093052.2400464-4-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: hns3: fix an interrupt residual problem
Yonglong Liu [Wed, 30 Apr 2025 09:30:50 +0000 (17:30 +0800)]
net: hns3: fix an interrupt residual problem

When a VF is passthrough to a VM, and the VM is killed, the reported
interrupt may not been handled, it will remain, and won't be clear by
the nic engine even with a flr or tqp reset. When the VM restart, the
interrupt of the first vector may be dropped by the second enable_irq
in vfio, see the issue below:
https://gitlab.com/qemu-project/qemu/-/issues/2884#note_2423361621

We notice that the vfio has always behaved this way, and the interrupt
is a residue of the nic engine, so we fix the problem by moving the
vector enable process out of the enable_irq loop.

Fixes: 08a100689d4b ("net: hns3: re-organize vector handle")
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Link: https://patch.msgid.link/20250430093052.2400464-3-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: hns3: store rx VLAN tag offload state for VF
Jian Shen [Wed, 30 Apr 2025 09:30:49 +0000 (17:30 +0800)]
net: hns3: store rx VLAN tag offload state for VF

The VF driver missed to store the rx VLAN tag strip state when
user change the rx VLAN tag offload state. And it will default
to enable the rx vlan tag strip when re-init VF device after
reset. So if user disable rx VLAN tag offload, and trig reset,
then the HW will still strip the VLAN tag from packet nad fill
into RX BD, but the VF driver will ignore it for rx VLAN tag
offload disabled. It may cause the rx VLAN tag dropped.

Fixes: b2641e2ad456 ("net: hns3: Add support of hardware rx-vlan-offload to HNS3 VF driver")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250430093052.2400464-2-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agoMerge branch '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net...
Jakub Kicinski [Thu, 1 May 2025 14:17:15 +0000 (07:17 -0700)]
Merge branch '200GbE' of git://git./linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2025-04-29 (idpf, igc)

For idpf:
Michal fixes error path handling to remove memory leak.

Larysa prevents reset from being called during shutdown.

For igc:
Jake adjusts locking order to resolve sleeping in atomic context.

* '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  igc: fix lock order in igc_ptp_reset
  idpf: protect shutdown from reset
  idpf: fix potential memory leak on kcalloc() failure
====================

Link: https://patch.msgid.link/20250429221034.3909139-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agoocteon_ep: Fix host hang issue during device reboot
Sathesh B Edara [Tue, 29 Apr 2025 11:46:24 +0000 (04:46 -0700)]
octeon_ep: Fix host hang issue during device reboot

When the host loses heartbeat messages from the device,
the driver calls the device-specific ndo_stop function,
which frees the resources. If the driver is unloaded in
this scenario, it calls ndo_stop again, attempting to free
resources that have already been freed, leading to a host
hang issue. To resolve this, dev_close should be called
instead of the device-specific stop function.dev_close
internally calls ndo_stop to stop the network interface
and performs additional cleanup tasks. During the driver
unload process, if the device is already down, ndo_stop
is not called.

Fixes: 5cb96c29aa0e ("octeon_ep: add heartbeat monitor")
Signed-off-by: Sathesh B Edara <sedara@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250429114624.19104-1-sedara@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: fec: ERR007885 Workaround for conventional TX
Mattias Barthel [Tue, 29 Apr 2025 09:08:26 +0000 (11:08 +0200)]
net: fec: ERR007885 Workaround for conventional TX

Activate TX hang workaround also in
fec_enet_txq_submit_skb() when TSO is not enabled.

Errata: ERR007885

Symptoms: NETDEV WATCHDOG: eth0 (fec): transmit queue 0 timed out

commit 37d6017b84f7 ("net: fec: Workaround for imx6sx enet tx hang when enable three queues")
There is a TDAR race condition for mutliQ when the software sets TDAR
and the UDMA clears TDAR simultaneously or in a small window (2-4 cycles).
This will cause the udma_tx and udma_tx_arbiter state machines to hang.

So, the Workaround is checking TDAR status four time, if TDAR cleared by
    hardware and then write TDAR, otherwise don't set TDAR.

Fixes: 53bb20d1faba ("net: fec: add variable reg_desc_active to speed things up")
Signed-off-by: Mattias Barthel <mattias.barthel@atlascopco.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250429090826.3101258-1-mattiasbarthel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: lan743x: Fix memleak issue when GSO enabled
Thangaraj Samynathan [Tue, 29 Apr 2025 05:25:27 +0000 (10:55 +0530)]
net: lan743x: Fix memleak issue when GSO enabled

Always map the `skb` to the LS descriptor. Previously skb was
mapped to EXT descriptor when the number of fragments is zero with
GSO enabled. Mapping the skb to EXT descriptor prevents it from
being freed, leading to a memory leak

Fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Thangaraj Samynathan <thangaraj.s@microchip.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250429052527.10031-1-thangaraj.s@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agoptp: ocp: Fix NULL dereference in Adva board SMA sysfs operations
Sagi Maimon [Tue, 29 Apr 2025 07:33:20 +0000 (10:33 +0300)]
ptp: ocp: Fix NULL dereference in Adva board SMA sysfs operations

On Adva boards, SMA sysfs store/get operations can call
__handle_signal_outputs() or __handle_signal_inputs() while the `irig`
and `dcf` pointers are uninitialized, leading to a NULL pointer
dereference in __handle_signal() and causing a kernel crash. Adva boards
don't use `irig` or `dcf` functionality, so add Adva-specific callbacks
`ptp_ocp_sma_adva_set_outputs()` and `ptp_ocp_sma_adva_set_inputs()` that
avoid invoking `irig` or `dcf` input/output routines.

Fixes: ef61f5528fca ("ptp: ocp: add Adva timecard support")
Signed-off-by: Sagi Maimon <maimon.sagi@gmail.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20250429073320.33277-1-maimon.sagi@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: use sock_gen_put() when sk_state is TCP_TIME_WAIT
Jibin Zhang [Tue, 29 Apr 2025 01:59:48 +0000 (09:59 +0800)]
net: use sock_gen_put() when sk_state is TCP_TIME_WAIT

It is possible for a pointer of type struct inet_timewait_sock to be
returned from the functions __inet_lookup_established() and
__inet6_lookup_established(). This can cause a crash when the
returned pointer is of type struct inet_timewait_sock and
sock_put() is called on it. The following is a crash call stack that
shows sk->sk_wmem_alloc being accessed in sk_free() during the call to
sock_put() on a struct inet_timewait_sock pointer. To avoid this issue,
use sock_gen_put() instead of sock_put() when sk->sk_state
is TCP_TIME_WAIT.

mrdump.ko        ipanic() + 120
vmlinux          notifier_call_chain(nr_to_call=-1, nr_calls=0) + 132
vmlinux          atomic_notifier_call_chain(val=0) + 56
vmlinux          panic() + 344
vmlinux          add_taint() + 164
vmlinux          end_report() + 136
vmlinux          kasan_report(size=0) + 236
vmlinux          report_tag_fault() + 16
vmlinux          do_tag_recovery() + 16
vmlinux          __do_kernel_fault() + 88
vmlinux          do_bad_area() + 28
vmlinux          do_tag_check_fault() + 60
vmlinux          do_mem_abort() + 80
vmlinux          el1_abort() + 56
vmlinux          el1h_64_sync_handler() + 124
vmlinux        > 0xFFFFFFC080011294()
vmlinux          __lse_atomic_fetch_add_release(v=0xF2FFFF82A896087C)
vmlinux          __lse_atomic_fetch_sub_release(v=0xF2FFFF82A896087C)
vmlinux          arch_atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C)
+ 8
vmlinux          raw_atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C)
+ 8
vmlinux          atomic_fetch_sub_release(i=1, v=0xF2FFFF82A896087C) + 8
vmlinux          __refcount_sub_and_test(i=1, r=0xF2FFFF82A896087C,
oldp=0) + 8
vmlinux          __refcount_dec_and_test(r=0xF2FFFF82A896087C, oldp=0) + 8
vmlinux          refcount_dec_and_test(r=0xF2FFFF82A896087C) + 8
vmlinux          sk_free(sk=0xF2FFFF82A8960700) + 28
vmlinux          sock_put() + 48
vmlinux          tcp6_check_fraglist_gro() + 236
vmlinux          tcp6_gro_receive() + 624
vmlinux          ipv6_gro_receive() + 912
vmlinux          dev_gro_receive() + 1116
vmlinux          napi_gro_receive() + 196
ccmni.ko         ccmni_rx_callback() + 208
ccmni.ko         ccmni_queue_recv_skb() + 388
ccci_dpmaif.ko   dpmaif_rxq_push_thread() + 1088
vmlinux          kthread() + 268
vmlinux          0xFFFFFFC08001F30C()

Fixes: c9d1d23e5239 ("net: add heuristic for enabling TCP fraglist GRO")
Signed-off-by: Jibin Zhang <jibin.zhang@mediatek.com>
Signed-off-by: Shiming Cheng <shiming.cheng@mediatek.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250429020412.14163-1-shiming.cheng@mediatek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>