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Author SHA1 Message Date
Christian Brauner
6a4ef7a2ff
Merge patch series "fix reading ESP during coredump"
Nam Cao <namcao@linutronix.de> says:

In /proc/PID/stat, there is the kstkesp field which is the stack pointer of
a thread. While the thread is active, this field reads zero. But during a
coredump, it should have a valid value.

However, at the moment, kstkesp is zero even during coredump.

The first commit fixes this problem, and the second commit adds a selftest
to detect if this problem appears again in the future.

* patches from https://lore.kernel.org/r/cover.1735805772.git.namcao@linutronix.de:
  selftests: coredump: Add stackdump test
  fs/proc: do_task_stat: Fix ESP not readable during coredump

Link: https://lore.kernel.org/r/cover.1735805772.git.namcao@linutronix.de
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-01-04 10:12:19 +01:00
Oleg Nesterov
aaec5a95d5
pipe_read: don't wake up the writer if the pipe is still full
wake_up(pipe->wr_wait) makes no sense if pipe_full() is still true after
the reading, the writer sleeping in wait_event(wr_wait, pipe_writable())
will check the pipe_writable() == !pipe_full() condition and sleep again.

Only wake the writer if we actually released a pipe buf, and the pipe was
full before we did so.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/all/20241229135737.GA3293@redhat.com/
Link: https://lore.kernel.org/r/20250102140715.GA7091@redhat.com
Reported-by: WangYuli <wangyuli@uniontech.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-01-04 10:12:19 +01:00
Nam Cao
15858da535
selftests: coredump: Add stackdump test
Add a test which checks that the kstkesp field in /proc/pid/stat can be
read for all threads of a coredumping process.

For full details including the motivation for this test and how it works,
see the README file added by this commit.

Reviewed-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/r/50e737b6576208566d14efcf1934fe840de6b1f4.1735805772.git.namcao@linutronix.de
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-01-04 10:12:18 +01:00
Christian Brauner
d2fc0ed52a
Merge branch 'vfs-6.14.uncached_buffered_io'
Bring in the VFS changes for uncached buffered io.

Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-01-04 10:12:18 +01:00
Nam Cao
ab251dacfb
fs/proc: do_task_stat: Fix ESP not readable during coredump
The field "eip" (instruction pointer) and "esp" (stack pointer) of a task
can be read from /proc/PID/stat. These fields can be interesting for
coredump.

However, these fields were disabled by commit 0a1eb2d474 ("fs/proc: Stop
reporting eip and esp in /proc/PID/stat"), because it is generally unsafe
to do so. But it is safe for a coredumping process, and therefore
exceptions were made:

  - for a coredumping thread by commit fd7d56270b ("fs/proc: Report
    eip/esp in /prod/PID/stat for coredumping").

  - for all other threads in a coredumping process by commit cb8f381f16
    ("fs/proc/array.c: allow reporting eip/esp for all coredumping
    threads").

The above two commits check the PF_DUMPCORE flag to determine a coredump thread
and the PF_EXITING flag for the other threads.

Unfortunately, commit 9230738308 ("coredump:  Don't perform any cleanups
before dumping core") moved coredump to happen earlier and before PF_EXITING is
set. Thus, checking PF_EXITING is no longer the correct way to determine
threads in a coredumping process.

Instead of PF_EXITING, use PF_POSTCOREDUMP to determine the other threads.

Checking of PF_EXITING was added for coredumping, so it probably can now be
removed. But it doesn't hurt to keep.

Fixes: 9230738308 ("coredump:  Don't perform any cleanups before dumping core")
Cc: stable@vger.kernel.org
Cc: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Kees Cook <kees@kernel.org>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/r/d89af63d478d6c64cc46a01420b46fd6eb147d6f.1735805772.git.namcao@linutronix.de
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-01-04 10:12:18 +01:00
Amir Goldstein
03f275adb8
fuse: respect FOPEN_KEEP_CACHE on opendir
The re-factoring of fuse_dir_open() missed the need to invalidate
directory inode page cache with open flag FOPEN_KEEP_CACHE.

Fixes: 7de64d521b ("fuse: break up fuse_open_common()")
Reported-by: Prince Kumar <princer@google.com>
Closes: https://lore.kernel.org/linux-fsdevel/CAEW=TRr7CYb4LtsvQPLj-zx5Y+EYBmGfM24SuzwyDoGVNoKm7w@mail.gmail.com/
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Link: https://lore.kernel.org/r/20250101130037.96680-1-amir73il@gmail.com
Reviewed-by: Bernd Schubert <bernd.schubert@fastmail.fm>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-01-04 09:58:14 +01:00
Jens Axboe
af6505e574
fs: add RWF_DONTCACHE iocb and FOP_DONTCACHE file_operations flag
If a file system supports uncached buffered IO, it may set FOP_DONTCACHE
and enable support for RWF_DONTCACHE. If RWF_DONTCACHE is attempted
without the file system supporting it, it'll get errored with -EOPNOTSUPP.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/20241220154831.1086649-8-axboe@kernel.dk
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-01-04 09:36:44 +01:00
Dmitry Baryshkov
2ea9ec5d2c drm/vc4: hdmi: use drm_atomic_helper_connector_hdmi_hotplug()
Use the helper function to update the connector's information. This
makes sure that HDMI-related events are handled in a generic way.
Currently it is limited to the HDMI state reporting to the sound system.

Acked-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-drm-bridge-hdmi-connector-v10-10-dc89577cd438@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-04 08:47:11 +02:00
Dmitry Baryshkov
b4fa080076 drm/vc4: hdmi: stop rereading EDID in get_modes()
The vc4_hdmi_connector_detect_ctx() via vc4_hdmi_handle_hotplug()
already reads EDID and propagates it to the drm_connector. Stop
rereading EDID as a part of the .get_modes() callback and just update
the list of modes. This matches the behaviour of the i915 driver.

Acked-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-drm-bridge-hdmi-connector-v10-9-dc89577cd438@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-04 08:47:11 +02:00
Dmitry Baryshkov
9640f1437a drm/vc4: hdmi: switch to using generic HDMI Codec infrastructure
Drop driver-specific implementation and use the generic HDMI Codec
framework in order to implement the HDMI audio support.

Acked-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-drm-bridge-hdmi-connector-v10-8-dc89577cd438@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-04 08:47:11 +02:00
Dmitry Baryshkov
4b5a79d7f4 drm/bridge_connector: hook drm_atomic_helper_connector_hdmi_hotplug()
Extend drm_bridge_connector code to read the EDID and use it to update
connector status if the bridge chain implements HDMI bridge. Performing
it from the generic location minimizes individual bridge's code and
enforces standard behaviour from all corresponding drivers.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-drm-bridge-hdmi-connector-v10-7-dc89577cd438@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-04 08:47:11 +02:00
Dmitry Baryshkov
ab716b74dc drm/display/hdmi: implement hotplug functions
The HDMI Connectors need to perform a variety of tasks when the HDMI
connector state changes. Such tasks include setting or invalidating CEC
address, notifying HDMI codec driver, updating scrambler data, etc.

Implementing such tasks in a driver-specific callbacks is error prone.
Start implementing the generic helper function (currently handling only
the HDMI Codec framework) to be used by drivers utilizing HDMI Connector
framework.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-drm-bridge-hdmi-connector-v10-6-dc89577cd438@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-04 08:47:11 +02:00
Dmitry Baryshkov
c054aa1bf5 drm/bridge: lt9611: switch to using the DRM HDMI codec framework
Make the Lontium LT9611 DSI-to-HDMI bridge driver use the DRM HDMI Codec
framework. This enables programming of Audio InfoFrames using the HDMI
Connector interface and also enables support for the missing features,
including the ELD retrieval and better hotplug support.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-drm-bridge-hdmi-connector-v10-5-dc89577cd438@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-04 08:47:11 +02:00
Dmitry Baryshkov
0beba3f9d3 drm/bridge: connector: add support for HDMI codec framework
Add necessary glue code to be able to use new HDMI codec framework from
the DRM bridge drivers. The drm_bridge implements a limited set of the
hdmi_codec_ops interface, with the functions accepting both
drm_connector and drm_bridge instead of just a generic void pointer.

This framework is integrated with the DRM HDMI Connector framework, but
can also be used for DisplayPort connectors.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-drm-bridge-hdmi-connector-v10-4-dc89577cd438@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-04 08:47:11 +02:00
Dmitry Baryshkov
baf616647f drm/connector: implement generic HDMI audio helpers
Several DRM drivers implement HDMI codec support (despite its name it
applies to both HDMI and DisplayPort drivers). Implement generic
framework to be used by these drivers. This removes a requirement to
implement get_eld() callback and provides default implementation for
codec's plug handling.

Acked-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-drm-bridge-hdmi-connector-v10-3-dc89577cd438@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-04 08:47:11 +02:00
Dmitry Baryshkov
bb1d67bf82 ASoC: hdmi-codec: move no_capture_mute to struct hdmi_codec_pdata
The no_capture_mute flag might differ from platform to platform,
especially in the case of the wrapping implementations, like the
upcoming DRM HDMI Codec framework. Move the flag next to all other flags
in struct hdmi_codec_pdata.

Acked-by: Mark Brown <broonie@kernel.org>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-drm-bridge-hdmi-connector-v10-2-dc89577cd438@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-04 08:47:10 +02:00
Dmitry Baryshkov
6af45d7df1 ASoC: hdmi-codec: pass data to get_dai_id too
The upcoming DRM connector HDMI codec implementation is going to use
codec-specific data in the .get_dai_id to get drm_connector. Pass data
to the callback, as it is done with other hdmi_codec_ops callbacks.

Acked-by: Mark Brown <broonie@kernel.org>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-drm-bridge-hdmi-connector-v10-1-dc89577cd438@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-01-04 08:47:10 +02:00
Naresh Solanki
857a61c2ce cpufreq/amd-pstate: Refactor max frequency calculation
The previous approach introduced roundoff errors during division when
calculating the boost ratio. This, in turn, affected the maximum
frequency calculation, often resulting in reporting lower frequency
values.

For example, on the Glinda SoC based board with the following
parameters:

max_perf = 208
nominal_perf = 100
nominal_freq = 2600 MHz

The Linux kernel previously calculated the frequency as:
freq = ((max_perf * 1024 / nominal_perf) * nominal_freq) / 1024
freq = 5405 MHz  // Integer arithmetic.

With the updated formula:
freq = (max_perf * nominal_freq) / nominal_perf
freq = 5408 MHz

This change ensures more accurate frequency calculations by eliminating
unnecessary shifts and divisions, thereby improving precision.

Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com>
[ML: trim the changelog from commit message]
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20241219201833.2750998-1-naresh.solanki@9elements.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
2025-01-03 23:44:07 -06:00
Lizhi Hou
fee7aaee11 accel/amdxdna: Declare npu6_dev_priv as static
Fix sparse warning:
  symbol 'npu6_dev_priv' was not declared. Should it be static?

Fixes: 273b5176ac ("accel/amdxdna: Add RyzenAI-npu6 support")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202412311819.9mz11Uak-lkp@intel.com/
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250102212244.1586340-7-lizhi.hou@amd.com
2025-01-03 23:38:22 -06:00
Lizhi Hou
3b5bcf64a6 accel/amdxdna: Add __user to second parameter of aie2_query_status
The second parameter of aie2_query_status() is a userspace pointer.
Declaring it as 'char __user *' to fix sparse warning.

Fixes: 850d71f6bf ("accel/amdxdna: Add query functions")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202412311655.YBvq2wJb-lkp@intel.com/
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250102212244.1586340-6-lizhi.hou@amd.com
2025-01-03 23:38:19 -06:00
Lizhi Hou
72e487b47d accel/amdxdna: Declare force_cmdlist as static
Fix sparse warning:
  symbol 'force_cmdlist' was not declared. Should it be static?

Fixes: aac243092b ("accel/amdxdna: Add command execution")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202412311448.GKQj7uPZ-lkp@intel.com/
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250102212244.1586340-5-lizhi.hou@amd.com
2025-01-03 23:38:16 -06:00
Lizhi Hou
1f74400529 accel/amdxdna: Use rcu_access_pointer for __rcu pointer
Use rcu_access_pointer for pid in struct drm_file. This fixes sparse
warning.

Fixes: be462c97b7 ("accel/amdxdna: Add hardware context")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202412311210.LfeHTzLw-lkp@intel.com/
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250102212244.1586340-4-lizhi.hou@amd.com
2025-01-03 23:38:13 -06:00
Lizhi Hou
c199310be2 accel/amdxdna: Declare aie2_max_col as static
Fix the sparse warning:
  symbol 'aie2_max_col' was not declared. Should it be static?

Fixes: c88d3325ae ("accel/amdxdna: Add hardware resource solver")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202412311028.x2UtcSHm-lkp@intel.com/
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250102212244.1586340-3-lizhi.hou@amd.com
2025-01-03 23:38:10 -06:00
Lizhi Hou
3c8cfec3fc accel/amdxdna: Declare mailbox register base as __iomem pointer
Declare mailbox ringbuf_base and mbox_base as 'void __iomem *' to fix
sparse warnings:
  cast removes address space '__iomem' of expression
  incorrect type in argument 2 (different address spaces)

Fixes: b87f920b93 ("accel/amdxdna: Support hardware mailbox")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202412310857.syD1sXXO-lkp@intel.com/
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250102212244.1586340-2-lizhi.hou@amd.com
2025-01-03 23:38:07 -06:00
Lizhi Hou
71486e4837 accel/amdxdna: Declare npu device profile as static variables
Declare the variables as static to fix the sparse warnings:
symbol 'npu5_dev_priv' was not declared. Should it be static?
symbol 'npu1_dev_priv' was not declared. Should it be static?
symbol 'npu4_dev_priv' was not declared. Should it be static?
symbol 'npu2_dev_priv' was not declared. Should it be static?

Fixes: 8c9ff1b181 ("accel/amdxdna: Add a new driver for AMD AI Engine")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202412310648.dtMHgGem-lkp@intel.com/
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250102212244.1586340-1-lizhi.hou@amd.com
2025-01-03 23:37:52 -06:00
Eric Biggers
7fa4817340 crypto: ahash - make hash walk functions private to ahash.c
Due to the removal of the Niagara2 SPU driver, crypto_hash_walk_first(),
crypto_hash_walk_done(), crypto_hash_walk_last(), and struct
crypto_hash_walk are now only used in crypto/ahash.c.  Therefore, make
them all private to crypto/ahash.c.  I.e. un-export the two functions
that were exported, make the functions static, and move the struct
definition to the .c file.  As part of this, move the functions to
earlier in the file to avoid needing to add forward declarations.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-01-04 08:53:47 +08:00
Thomas Weißschuh
9ff6e943bc padata: fix sysfs store callback check
padata_sysfs_store() was copied from padata_sysfs_show() but this check
was not adapted. Today there is no attribute which can fail this
check, but if there is one it may as well be correct.

Fixes: 5e017dc3f8 ("padata: Added sysfs primitives to padata subsystem")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-01-04 08:53:47 +08:00
Eric Biggers
730f67d8b8 crypto: keywrap - remove unused keywrap algorithm
The keywrap (kw) algorithm has no in-tree user.  It has never had an
in-tree user, and the patch that added it provided no justification for
its inclusion.  Even use of it via AF_ALG is impossible, as it uses a
weird calling convention where part of the ciphertext is returned via
the IV buffer, which is not returned to userspace in AF_ALG.

It's also unclear whether any new code in the kernel that does key
wrapping would actually use this algorithm.  It is controversial in the
cryptographic community due to having no clearly stated security goal,
no security proof, poor performance, and only a 64-bit auth tag.  Later
work (https://eprint.iacr.org/2006/221) suggested that the goal is
deterministic authenticated encryption.  But there are now more modern
algorithms for this, and this is not the same as key wrapping, for which
a regular AEAD such as AES-GCM usually can be (and is) used instead.

Therefore, remove this unused code.

There were several special cases for this algorithm in the self-tests,
due to its weird calling convention.  Remove those too.

Cc: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-01-04 08:53:47 +08:00
Eric Biggers
2890601f54 crypto: vmac - remove unused VMAC algorithm
Remove the vmac64 template, as it has no known users.  It also continues
to have longstanding bugs such as alignment violations (see
https://lore.kernel.org/r/20241226134847.6690-1-evepolonium@gmail.com/).

This code was added in 2009 by commit f1939f7c56 ("crypto: vmac - New
hash algorithm for intel_txt support").  Based on the mention of
intel_txt support in the commit title, it seems it was added as a
prerequisite for the contemporaneous patch
"intel_txt: add s3 userspace memory integrity verification"
(https://lore.kernel.org/r/4ABF2B50.6070106@intel.com/).  In the design
proposed by that patch, when an Intel Trusted Execution Technology (TXT)
enabled system resumed from suspend, the "tboot" trusted executable
launched the Linux kernel without verifying userspace memory, and then
the Linux kernel used VMAC to verify userspace memory.

However, that patch was never merged, as reviewers had objected to the
design.  It was later reworked into commit 4bd96a7a81 ("x86, tboot:
Add support for S3 memory integrity protection") which made tboot verify
the memory instead.  Thus the VMAC support in Linux was never used.

No in-tree user has appeared since then, other than potentially the
usual components that allow specifying arbitrary hash algorithms by
name, namely AF_ALG and dm-integrity.  However there are no indications
that VMAC is being used with these components.  Debian Code Search and
web searches for "vmac64" (the actual algorithm name) do not return any
results other than the kernel itself, suggesting that it does not appear
in any other code or documentation.  Explicitly grepping the source code
of the usual suspects (libell, iwd, cryptsetup) finds no matches either.

Before 2018, the vmac code was also completely broken due to using a
hardcoded nonce and the wrong endianness for the MAC.  It was then fixed
by commit ed331adab3 ("crypto: vmac - add nonced version with big
endian digest") and commit 0917b87312 ("crypto: vmac - remove insecure
version with hardcoded nonce").  These were intentionally breaking
changes that changed all the computed MAC values as well as the
algorithm name ("vmac" to "vmac64").  No complaints were ever received
about these breaking changes, strongly suggesting the absence of users.

The reason I had put some effort into fixing this code in 2018 is
because it was used by an out-of-tree driver.  But if it is still needed
in that particular out-of-tree driver, the code can be carried in that
driver instead.  There is no need to carry it upstream.

Cc: Atharva Tiwari <evepolonium@gmail.com>
Cc: Shane Wang <shane.wang@intel.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-01-04 08:52:03 +08:00
Md Sadre Alam
eb680160cf dt-bindings: crypto: qcom,prng: document ipq9574, ipq5424 and ipq5322
Document ipq9574, ipq5424 and ipq5322 compatible for the True Random Number
Generator.

Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-01-04 08:52:03 +08:00
Thorsten Blum
8f904adef6 crypto: fips - Use str_enabled_disabled() helper in fips_enable()
Remove hard-coded strings by using the str_enabled_disabled() helper
function.

Use pr_info() instead of printk(KERN_INFO) to silence a checkpatch
warning.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-01-04 08:52:03 +08:00
Jakub Kicinski
385f186aba Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.13-rc6).

No conflicts.

Adjacent changes:

include/linux/if_vlan.h
  f91a5b8089 ("af_packet: fix vlan_get_protocol_dgram() vs MSG_PEEK")
  3f330db306 ("net: reformat kdoc return statements")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-03 16:29:29 -08:00
Linus Torvalds
63676eefb7 sched_ext: Fixes for v6.13-rc5
- Fix the bug where bpf_iter_scx_dsq_new() was not initializing the
   iterator's flags and could inadvertently enable e.g. reverse iteration.
 
 - Fix the bug where scx_ops_bypass() could call irq_restore twice.
 
 - Add Andrea and Changwoo as maintainers for better review coverage.
 
 - selftests and tools/sched_ext build and other fixes.
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Merge tag 'sched_ext-for-6.13-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:

 - Fix a bug where bpf_iter_scx_dsq_new() was not initializing the
   iterator's flags and could inadvertently enable e.g. reverse
   iteration

 - Fix a bug where scx_ops_bypass() could call irq_restore twice

 - Add Andrea and Changwoo as maintainers for better review coverage

 - selftests and tools/sched_ext build and other fixes

* tag 'sched_ext-for-6.13-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
  sched_ext: Fix dsq_local_on selftest
  sched_ext: initialize kit->cursor.flags
  sched_ext: Fix invalid irq restore in scx_ops_bypass()
  MAINTAINERS: add me as reviewer for sched_ext
  MAINTAINERS: add self as reviewer for sched_ext
  scx: Fix maximal BPF selftest prog
  sched_ext: fix application of sizeof to pointer
  selftests/sched_ext: fix build after renames in sched_ext API
  sched_ext: Add __weak to fix the build errors
2025-01-03 15:09:12 -08:00
Linus Torvalds
f9aa1fb9f8 workqueue: Fixes for v6.13-rc5
- Suppress a corner case spurious flush dependency warning.
 
 - Two trivial changes.
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Merge tag 'wq-for-6.13-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue fixes from Tejun Heo:

 - Suppress a corner case spurious flush dependency warning

 - Two trivial changes

* tag 'wq-for-6.13-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: add printf attribute to __alloc_workqueue()
  workqueue: Do not warn when cancelling WQ_MEM_RECLAIM work from !WQ_MEM_RECLAIM worker
  rust: add safety comment in workqueue traits
2025-01-03 15:03:56 -08:00
Linus Torvalds
2ae3aab557 block-6.13-20250103
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Merge tag 'block-6.13-20250103' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:
 "Collection of fixes for block. Particularly the target name overflow
  has been a bit annoying, as it results in overwriting random memory
  and hence shows up as triggering various other bugs.

   - NVMe pull request via Keith:
      - Fix device specific quirk for PRP list alignment (Robert)
      - Fix target name overflow (Leo)
      - Fix target write granularity (Luis)
      - Fix target sleeping in atomic context (Nilay)
      - Remove unnecessary tcp queue teardown (Chunguang)

   - Simple cdrom typo fix"

* tag 'block-6.13-20250103' of git://git.kernel.dk/linux:
  cdrom: Fix typo, 'devicen' to 'device'
  nvme-tcp: remove nvme_tcp_destroy_io_queues()
  nvmet-loop: avoid using mutex in IO hotpath
  nvmet: propagate npwg topology
  nvmet: Don't overflow subsysnqn
  nvme-pci: 512 byte aligned dma pool segment quirk
2025-01-03 14:58:57 -08:00
Linus Torvalds
a984e234fc io_uring-6.13-20250103
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Merge tag 'io_uring-6.13-20250103' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix an issue with the read multishot support and posting of CQEs from
   io-wq context

 - Fix a regression introduced in this cycle, where making the timeout
   lock a raw one uncovered another locking dependency. As a result,
   move the timeout flushing outside of the timeout lock, punting them
   to a local list first

 - Fix use of an uninitialized variable in io_async_msghdr. Doesn't
   really matter functionally, but silences a valid KMSAN complaint that
   it's not always initialized

 - Fix use of incrementally provided buffers for read on non-pollable
   files, where the buffer always gets committed upfront. Unfortunately
   the buffer address isn't resolved first, so the read ends up using
   the updated rather than the current value

* tag 'io_uring-6.13-20250103' of git://git.kernel.dk/linux:
  io_uring/kbuf: use pre-committed buffer address for non-pollable file
  io_uring/net: always initialize kmsg->msg.msg_inq upfront
  io_uring/timeout: flush timeouts outside of the timeout lock
  io_uring/rw: fix downgraded mshot read
2025-01-03 14:45:59 -08:00
Linus Torvalds
aba74e639f Nothing major here. Over the last two weeks we gathered only around
two-thirds of our normal weekly fix count, but delaying sending these
 until -rc7 seemed like a really bad idea.
 
 AFAIK we have no bugs under investigation. One or two reverts for
 stuff for which we haven't gotten a proper fix will likely come in
 the next PR.
 
 Including fixes from wireles and netfilter.
 
 Current release - fix to a fix:
 
  - netfilter: nft_set_hash: unaligned atomic read on struct nft_set_ext
 
  - eth: gve: trigger RX NAPI instead of TX NAPI in gve_xsk_wakeup
 
 Previous releases - regressions:
 
  - net: reenable NETIF_F_IPV6_CSUM offload for BIG TCP packets
 
  - mptcp:
    - fix sleeping rcvmsg sleeping forever after bad recvbuffer adjust
    - fix TCP options overflow
    - prevent excessive coalescing on receive, fix throughput
 
  - net: fix memory leak in tcp_conn_request() if map insertion fails
 
  - wifi: cw1200: fix potential NULL dereference after conversion
    to GPIO descriptors
 
  - phy: micrel: dynamically control external clock of KSZ PHY,
    fix suspend behavior
 
 Previous releases - always broken:
 
  - af_packet: fix VLAN handling with MSG_PEEK
 
  - net: restrict SO_REUSEPORT to inet sockets
 
  - netdev-genl: avoid empty messages in NAPI get
 
  - dsa: microchip: fix set_ageing_time function on KSZ9477 and LAN937X
 
  - eth: gve: XDP fixes around transmit, queue wakeup etc.
 
  - eth: ti: icssg-prueth: fix firmware load sequence to prevent time
    jump which breaks timesync related operations
 
 Misc:
 
  - netlink: specs: mptcp: add missing attr and improve documentation
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from wireles and netfilter.

  Nothing major here. Over the last two weeks we gathered only around
  two-thirds of our normal weekly fix count, but delaying sending these
  until -rc7 seemed like a really bad idea.

  AFAIK we have no bugs under investigation. One or two reverts for
  stuff for which we haven't gotten a proper fix will likely come in the
  next PR.

  Current release - fix to a fix:

   - netfilter: nft_set_hash: unaligned atomic read on struct
     nft_set_ext

   - eth: gve: trigger RX NAPI instead of TX NAPI in gve_xsk_wakeup

  Previous releases - regressions:

   - net: reenable NETIF_F_IPV6_CSUM offload for BIG TCP packets

   - mptcp:
      - fix sleeping rcvmsg sleeping forever after bad recvbuffer adjust
      - fix TCP options overflow
      - prevent excessive coalescing on receive, fix throughput

   - net: fix memory leak in tcp_conn_request() if map insertion fails

   - wifi: cw1200: fix potential NULL dereference after conversion to
     GPIO descriptors

   - phy: micrel: dynamically control external clock of KSZ PHY, fix
     suspend behavior

  Previous releases - always broken:

   - af_packet: fix VLAN handling with MSG_PEEK

   - net: restrict SO_REUSEPORT to inet sockets

   - netdev-genl: avoid empty messages in NAPI get

   - dsa: microchip: fix set_ageing_time function on KSZ9477 and LAN937X

   - eth:
      - gve: XDP fixes around transmit, queue wakeup etc.
      - ti: icssg-prueth: fix firmware load sequence to prevent time
        jump which breaks timesync related operations

  Misc:

   - netlink: specs: mptcp: add missing attr and improve documentation"

* tag 'net-6.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (50 commits)
  net: ti: icssg-prueth: Fix clearing of IEP_CMP_CFG registers during iep_init
  net: ti: icssg-prueth: Fix firmware load sequence.
  mptcp: prevent excessive coalescing on receive
  mptcp: don't always assume copied data in mptcp_cleanup_rbuf()
  mptcp: fix recvbuffer adjust on sleeping rcvmsg
  ila: serialize calls to nf_register_net_hooks()
  af_packet: fix vlan_get_protocol_dgram() vs MSG_PEEK
  af_packet: fix vlan_get_tci() vs MSG_PEEK
  net: wwan: iosm: Properly check for valid exec stage in ipc_mmio_init()
  net: restrict SO_REUSEPORT to inet sockets
  net: reenable NETIF_F_IPV6_CSUM offload for BIG TCP packets
  net: sfc: Correct key_len for efx_tc_ct_zone_ht_params
  net: wwan: t7xx: Fix FSM command timeout issue
  sky2: Add device ID 11ab:4373 for Marvell 88E8075
  mptcp: fix TCP options overflow.
  net: mv643xx_eth: fix an OF node reference leak
  gve: trigger RX NAPI instead of TX NAPI in gve_xsk_wakeup
  eth: bcmsysport: fix call balance of priv->clk handling routines
  net: llc: reset skb->transport_header
  netlink: specs: mptcp: fix missing doc
  ...
2025-01-03 14:36:54 -08:00
Linus Torvalds
ee063c23e4 NIOS2: update for v6.14
- Use str_yes_no() helper function
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Merge tag 'nios2_update_for_v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux

Pull nios2 fixlet from Dinh Nguyen:

 - Use str_yes_no() helper function

* tag 'nios2_update_for_v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  nios2: Use str_yes_no() helper in show_cpuinfo()
2025-01-03 14:16:25 -08:00
Yassine Oudjana
5b0417b8bb dt-bindings: mfd: mediatek: mt6397: Add bindings for MT6328
Add compatible strings for the MT6328 PMIC.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20241018081050.23592-3-y.oudjana@protonmail.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2025-01-03 15:33:21 -06:00
Dirk Behme
51ce1cd60d docs: dt: unittest: Correct SELFTEST to UNITTEST
The Kconfig switch is CONFIG_OF_UNITTEST. Not OF_SELFTEST.
Correct this.

While at it replace the outdated file list with a link to the
directory as proposed by Rob Herring.

Cc: Gaurav Minocha <gaurav.minocha.os@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Link: https://lore.kernel.org/r/20241029054042.958775-1-dirk.behme@de.bosch.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2025-01-03 15:25:56 -06:00
Lucas De Marchi
6acea03f98 drm/xe: Remove "graphics tile" from kernel doc
Avoid using "graphics tile" to refer to GT since it's ambiguous: it's
**part** of a tile and there's also "media gt". In several places it's
documented as "GT structure", so just follow it.

Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250103001111.331684-3-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-01-03 12:43:02 -08:00
Lucas De Marchi
5001ef3af8 drm/xe: Fix tlb invalidation when wedging
If GuC fails to load, the driver wedges, but in the process it tries to
do stuff that may not be initialized yet. This moves the
xe_gt_tlb_invalidation_init() to be done earlier: as its own doc says,
it's a software-only initialization and should had been named with the
_early() suffix.

Move it to be called by xe_gt_init_early(), so the locks and seqno are
initialized, avoiding a NULL ptr deref when wedging:

	xe 0000:03:00.0: [drm] *ERROR* GT0: load failed: status: Reset = 0, BootROM = 0x50, UKernel = 0x00, MIA = 0x00, Auth = 0x01
	xe 0000:03:00.0: [drm] *ERROR* GT0: firmware signature verification failed
	xe 0000:03:00.0: [drm] *ERROR* CRITICAL: Xe has declared device 0000:03:00.0 as wedged.
	...
	BUG: kernel NULL pointer dereference, address: 0000000000000000
	#PF: supervisor read access in kernel mode
	#PF: error_code(0x0000) - not-present page
	PGD 0 P4D 0
	Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
	CPU: 9 UID: 0 PID: 3908 Comm: modprobe Tainted: G     U  W          6.13.0-rc4-xe+ #3
	Tainted: [U]=USER, [W]=WARN
	Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-S ADP-S DDR5 UDIMM CRB, BIOS ADLSFWI1.R00.3275.A00.2207010640 07/01/2022
	RIP: 0010:xe_gt_tlb_invalidation_reset+0x75/0x110 [xe]

This can be easily triggered by poking the GuC binary to force a
signature failure. There will still be an extra message,

	xe 0000:03:00.0: [drm] *ERROR* GT0: GuC mmio request 0x4100: no reply 0x4100

but that's better than a NULL ptr deref.

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/3956
Fixes: 7dbe8af13c ("drm/xe: Wedge the entire device")
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250103001111.331684-2-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-01-03 12:43:01 -08:00
Geert Uytterhoeven
ab7f44e967 Renesas RZ/G3E Pin Control DT Binding Definitions
Pin control DT bindings and binding definitions for the Renesas RZ/G3E
 (R9A09G047) SoC, shared by driver and DT source files.
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Merge tag 'renesas-r9a09g047-dt-binding-defs-tag2' into renesas-dts-for-v6.14

Renesas RZ/G3E Pin Control DT Binding Definitions

Pin control DT bindings and binding definitions for the Renesas RZ/G3E
(R9A09G047) SoC, shared by driver and DT source files.
2025-01-03 21:18:50 +01:00
Biju Das
987040d460 arm64: dts: renesas: r9a09g047: Add pincontrol node
Add pincontrol node to RZ/G3E ("R9A09G047") SoC DTSI.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/20241216195325.164212-7-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2025-01-03 21:18:43 +01:00
Biju Das
6e526427fa arm64: dts: renesas: r9a09g057h44-rzv2h-evk: Replace RZG2L macros
Replace RZG2L_* macros with RZV2H_* macros, so that we can define
port names in alpha-numeric.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/20241216195325.164212-6-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2025-01-03 21:18:20 +01:00
Geert Uytterhoeven
482926625c Renesas RZ/V2H Pin Control DT Binding Definitions
Pin control DT binding definitions for the Renesas RZ/V2H (R9A09G057)
 SoC, shared by driver and DT source files.
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Merge tag 'renesas-r9a09g057-dt-binding-defs-tag2' into renesas-dts-for-v6.14

Renesas RZ/V2H Pin Control DT Binding Definitions

Pin control DT binding definitions for the Renesas RZ/V2H (R9A09G057)
SoC, shared by driver and DT source files.
2025-01-03 21:18:10 +01:00
Biju Das
829356da70 pinctrl: renesas: rzg2l: Add support for RZ/G3E SoC
Add pinctrl driver support for RZ/G3E SoC.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20241216195325.164212-5-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2025-01-03 21:09:19 +01:00
Geert Uytterhoeven
75ea9cf9b8 Renesas RZ/G3E Pin Control DT Binding Definitions
Pin control DT bindings and binding definitions for the Renesas RZ/G3E
 (R9A09G047) SoC, shared by driver and DT source files.
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Merge tag 'renesas-r9a09g047-dt-binding-defs-tag2' into renesas-pinctrl-for-v6.14

Renesas RZ/G3E Pin Control DT Binding Definitions

Pin control DT bindings and binding definitions for the Renesas RZ/G3E
(R9A09G047) SoC, shared by driver and DT source files.
2025-01-03 21:09:11 +01:00
Biju Das
0ce66380a7 pinctrl: renesas: rzg2l: Update r9a09g057_variable_pin_cfg table
Currently r9a09g057_variable_pin_cfg table uses port 11 instead of port PB
as mentioned in the hardware manual. Update the r9a09g057_variable_pin_cfg
table with alpha-numeric port names to match with the hardware manual.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20241216195325.164212-4-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2025-01-03 21:09:04 +01:00
Geert Uytterhoeven
4180ca6224 Renesas RZ/V2H Pin Control DT Binding Definitions
Pin control DT binding definitions for the Renesas RZ/V2H (R9A09G057)
 SoC, shared by driver and DT source files.
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Merge tag 'renesas-r9a09g057-dt-binding-defs-tag2' into renesas-pinctrl-for-v6.14

Renesas RZ/V2H Pin Control DT Binding Definitions

Pin control DT binding definitions for the Renesas RZ/V2H (R9A09G057)
SoC, shared by driver and DT source files.
2025-01-03 21:08:55 +01:00