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7 weeks agoMerge tag 'sched_ext-for-6.16-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 19 Jul 2025 17:40:30 +0000 (10:40 -0700)] 
Merge tag 'sched_ext-for-6.16-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:

 - Fix handling of migration disabled tasks in default idle selection

 - update_locked_rq() called __this_cpu_write() spuriously with NULL
   when @rq was not locked. As the writes were spurious, it didn't break
   anything directly. However, the function could be called in a
   preemptible leading to a context warning in __this_cpu_write(). Skip
   the spurious NULL writes.

 - Selftest fix on UP

* tag 'sched_ext-for-6.16-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
  sched_ext: idle: Handle migration-disabled tasks in idle selection
  sched/ext: Prevent update_locked_rq() calls with NULL rq
  selftests/sched_ext: Fix exit selftest hang on UP

7 weeks agorust: samples: dma: set DMA mask
Danilo Krummrich [Wed, 16 Jul 2025 15:02:50 +0000 (17:02 +0200)] 
rust: samples: dma: set DMA mask

Set a DMA mask for the `pci::Device` in the Rust DMA sample driver.

Reviewed-by: Abdiel Janulgue <abdiel.janulgue@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250716150354.51081-6-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
7 weeks agorust: platform: implement the `dma::Device` trait
Danilo Krummrich [Wed, 16 Jul 2025 15:02:49 +0000 (17:02 +0200)] 
rust: platform: implement the `dma::Device` trait

The platform bus is potentially capable of performing DMA, hence implement
the `dma:Device` trait for `platform::Device`.

Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250716150354.51081-5-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
7 weeks agorust: pci: implement the `dma::Device` trait
Danilo Krummrich [Wed, 16 Jul 2025 15:02:48 +0000 (17:02 +0200)] 
rust: pci: implement the `dma::Device` trait

The PCI bus is potentially capable of performing DMA, hence implement
the `dma:Device` trait for `pci::Device`.

Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250716150354.51081-4-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
7 weeks agorust: dma: add DMA addressing capabilities
Danilo Krummrich [Wed, 16 Jul 2025 15:02:47 +0000 (17:02 +0200)] 
rust: dma: add DMA addressing capabilities

Implement `dma_set_mask()`, `dma_set_coherent_mask()` and
`dma_set_mask_and_coherent()` in the `dma::Device` trait.

Those methods are used to set up the device's DMA addressing
capabilities.

Reviewed-by: Abdiel Janulgue <abdiel.janulgue@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250716150354.51081-3-dakr@kernel.org
[ Add DmaMask::try_new(). - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
7 weeks agoMerge tag 'lockdep-for-tip.2025.07.16' of git://git.kernel.org/pub/scm/linux/kernel...
Peter Zijlstra [Sat, 19 Jul 2025 17:25:53 +0000 (19:25 +0200)] 
Merge tag 'lockdep-for-tip.2025.07.16' of git://git.kernel.org/pub/scm/linux/kernel/git/boqun/linux into locking/core

Locking changes for v6.17:

- General
  - Mark devm_mutex_init() as __must_check
  - Add #[must_use] to Lock::try_lock()
  - Remove OWNER_SPINNABLE in rwsem
  - Remove redundant #ifdefs in mutex
- Lockdep
  - Avoid returning struct in lock_stats()
  - Change `static const` into enum for LOCKF_*_IRQ_*
  - Temporarily use synchronize_rcu_expedited() in
    lockdep_unregister_key() to speed things up.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
7 weeks agorust: dma: implement `dma::Device` trait
Danilo Krummrich [Wed, 16 Jul 2025 15:02:46 +0000 (17:02 +0200)] 
rust: dma: implement `dma::Device` trait

Add a trait that defines the DMA specific methods of devices.

The `dma::Device` trait is to be implemented by bus device
representations, where the underlying bus is capable of DMA, such as
`pci::Device` or `platform::Device`.

Reviewed-by: Abdiel Janulgue <abdiel.janulgue@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250716150354.51081-2-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
7 weeks agoMerge tag 'cgroup-for-6.16-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 19 Jul 2025 17:00:47 +0000 (10:00 -0700)] 
Merge tag 'cgroup-for-6.16-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup fixes from Tejun Heo:
 "An earlier commit to suppress a warning introduced a race condition
  where tasks can escape cgroup1 freezer. Revert the commit and simply
  remove the warning which was spurious to begin with"

* tag 'cgroup-for-6.16-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  Revert "cgroup_freezer: cgroup_freezing: Check if not frozen"
  sched,freezer: Remove unnecessary warning in __thaw_task

7 weeks agoMerge tag 'hwmon-for-v6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 19 Jul 2025 16:51:01 +0000 (09:51 -0700)] 
Merge tag 'hwmon-for-v6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - corsair-cpro: Validate the size of the received input buffer

 - ina238: Report energy in microjoules as expected by the ABI

 - pmbus/ucd9000: Fixed GPIO functionality

* tag 'hwmon-for-v6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (pmbus/ucd9000) Fix error in ucd9000_gpio_set
  hwmon: (ina238) Report energy in microjoules
  hwmon: (corsair-cpro) Validate the size of the received input buffer

7 weeks agoMerge tag 'rust-fixes-6.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda...
Linus Torvalds [Sat, 19 Jul 2025 16:22:26 +0000 (09:22 -0700)] 
Merge tag 'rust-fixes-6.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

Pull Rust fixes from Miguel Ojeda:
 "Toolchain and infrastructure:

   - Fix build and modpost confusion for the upcoming Rust 1.89.0
     release

   - Clean objtool warning for the upcoming Rust 1.89.0 release by
     adding one more noreturn function

  'kernel' crate:

   - Fix build error when using generics in the 'try_{,pin_}init!'
     macros"

* tag 'rust-fixes-6.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
  rust: use `#[used(compiler)]` to fix build and `modpost` with Rust >= 1.89.0
  objtool/rust: add one more `noreturn` Rust function for Rust 1.89.0
  rust: init: Fix generics in *_init! macros

7 weeks agowifi: ath12k: Advertise encapsulation/decapsulation offload support to mac80211
Nithyanantham Paramasivam [Fri, 18 Jul 2025 02:55:13 +0000 (08:25 +0530)] 
wifi: ath12k: Advertise encapsulation/decapsulation offload support to mac80211

Currently, the mac80211 layer handles construction and parsing
of 802.11 headers during packet transmission and reception.
Offloading encapsulation and decapsulation to hardware can
significantly enhance performance. Check the service bit to determine
if the firmware supports Ethernet offload. If supported, advertise the
capability to mac80211 to bypass software-based 802.11 header
processing.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00217-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Nithyanantham Paramasivam <nithyanantham.paramasivam@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250718025513.32982-4-nithyanantham.paramasivam@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
7 weeks agowifi: ath12k: Fix TX status reporting to mac80211 when offload is enabled
Nithyanantham Paramasivam [Fri, 18 Jul 2025 02:55:12 +0000 (08:25 +0530)] 
wifi: ath12k: Fix TX status reporting to mac80211 when offload is enabled

Currently, the ath12k driver supports only the native Wi-Fi
frame format. In this mode, the ieee80211_tx_status() function
works correctly to report transmission status to mac80211, as
it retrieves station information using sta_info_get_by_addrs().

However, this method is not applicable for Ethernet-converted
packets, since sta_info_get_by_addrs() cannot extract station
information from such formats.

Retrieve station information using ath12k_peer_find_by_id() to
support all frame formats, including native Wi-Fi, raw, and Ethernet.
Report transmission status using ieee80211_tx_status_ext(), and
include rate information as part of the datapath TX status report.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00217-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Nithyanantham Paramasivam <nithyanantham.paramasivam@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250718025513.32982-3-nithyanantham.paramasivam@oss.qualcomm.com
[changed instances of { 0 } to {}]
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
7 weeks agocgroup: Add compatibility option for content of /proc/cgroups
Michal Koutný [Fri, 18 Jul 2025 09:18:54 +0000 (11:18 +0200)] 
cgroup: Add compatibility option for content of /proc/cgroups

/proc/cgroups lists only v1 controllers by default, however, this is
only enforced since the commit af000ce85293b ("cgroup: Do not report
unavailable v1 controllers in /proc/cgroups") and there is software in
the wild that uses content of /proc/cgroups to decide on availability of
v2 (sic) controllers.

Add a boottime param that can bring back the previous behavior for
setups where the check in the software cannot be changed and it causes
e.g. unintended OOMs.

Also, this patch takes out cgrp_v1_visible from cgroup1_subsys_absent()
guard since it's only important to check which hierarchy (v1 vs v2) the
subsys is attached to. This has no effect on the printed message but
the code is cleaner since cgrp_v1_visible is really about mounted
hierarchies, not the content of /proc/cgroups.

Link: https://lore.kernel.org/r/b26b60b7d0d2a5ecfd2f3c45f95f32922ed24686.camel@decadent.org.uk
Fixes: af000ce85293b ("cgroup: Do not report unavailable v1 controllers in /proc/cgroups")
Fixes: a0ab1453226d8 ("cgroup: Print message when /proc/cgroups is read on v2-only system")
Signed-off-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
7 weeks agowifi: ath12k: Fix the handling of TX packets in Ethernet mode
Nithyanantham Paramasivam [Fri, 18 Jul 2025 02:55:11 +0000 (08:25 +0530)] 
wifi: ath12k: Fix the handling of TX packets in Ethernet mode

Currently, in the transmit (TX) direction, EAPOL, QoS NULL,
and multicast frames are sent in native Wi-Fi (802.11) format.
However, when the virtual interface is configured in Ethernet
mode, transmission fails for packets enqueued in native Wi-fi format.

To address this issue, the firmware should be instructed to
treat these packets as RAW type packets, ensuring proper
handling even when the interface operates in Ethernet mode.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00217-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Nithyanantham Paramasivam <nithyanantham.paramasivam@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250718025513.32982-2-nithyanantham.paramasivam@oss.qualcomm.com
[fix indentation]
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
7 weeks agogpio: sysfs: Fix an end of loop test in gpiod_unexport()
Dan Carpenter [Fri, 18 Jul 2025 21:22:15 +0000 (16:22 -0500)] 
gpio: sysfs: Fix an end of loop test in gpiod_unexport()

The test for "if (!desc_data)" does not work correctly because the list
iterator in a list_for_each_entry() loop is always non-NULL. If we don't
exit via a break, then it points to invalid memory.  Instead, use a tmp
variable for the list iterator and only set the "desc_data" when we have
found a match.

Fixes: 1cd53df733c2 ("gpio: sysfs: don't look up exported lines as class devices")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/747545bf-05f0-4f89-ba77-cb96bf9041f1@sabinyo.mountain
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
7 weeks agopinctrl: ingenic: use pinmux_generic_add_pinfunction()
Bartosz Golaszewski [Wed, 9 Jul 2025 14:39:03 +0000 (16:39 +0200)] 
pinctrl: ingenic: use pinmux_generic_add_pinfunction()

Instead of passing individual fields of struct pinfunction to
pinmux_generic_add_function(), use pinmux_generic_add_pinfunction() and
pass the entire structure directly.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/20250709-pinctrl-gpio-pinfuncs-v2-7-b6135149c0d9@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
7 weeks agopinctrl: keembay: use pinmux_generic_add_pinfunction()
Bartosz Golaszewski [Wed, 9 Jul 2025 14:39:02 +0000 (16:39 +0200)] 
pinctrl: keembay: use pinmux_generic_add_pinfunction()

Instead of passing individual fields of struct pinfunction to
pinmux_generic_add_function(), use pinmux_generic_add_pinfunction() and
pass the entire structure directly.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/20250709-pinctrl-gpio-pinfuncs-v2-6-b6135149c0d9@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
7 weeks agopinctrl: mediatek: moore: use pinmux_generic_add_pinfunction()
Bartosz Golaszewski [Wed, 9 Jul 2025 14:39:01 +0000 (16:39 +0200)] 
pinctrl: mediatek: moore: use pinmux_generic_add_pinfunction()

Instead of passing individual fields of struct pinfunction to
pinmux_generic_add_function(), use pinmux_generic_add_pinfunction() and
pass the entire structure directly.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/20250709-pinctrl-gpio-pinfuncs-v2-5-b6135149c0d9@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
7 weeks agopinctrl: airoha: use pinmux_generic_add_pinfunction()
Bartosz Golaszewski [Wed, 9 Jul 2025 14:39:00 +0000 (16:39 +0200)] 
pinctrl: airoha: use pinmux_generic_add_pinfunction()

Instead of passing individual fields of struct pinfunction to
pinmux_generic_add_function(), use pinmux_generic_add_pinfunction() and
pass the entire structure directly.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/20250709-pinctrl-gpio-pinfuncs-v2-4-b6135149c0d9@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
7 weeks agopinctrl: equilibrium: use pinmux_generic_add_pinfunction()
Bartosz Golaszewski [Wed, 9 Jul 2025 14:38:59 +0000 (16:38 +0200)] 
pinctrl: equilibrium: use pinmux_generic_add_pinfunction()

Instead of passing individual fields of struct pinfunction to
pinmux_generic_add_function(), use pinmux_generic_add_pinfunction() and
pass the entire structure directly.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/20250709-pinctrl-gpio-pinfuncs-v2-3-b6135149c0d9@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
7 weeks agopinctrl: provide pinmux_generic_add_pinfunction()
Bartosz Golaszewski [Wed, 9 Jul 2025 14:38:58 +0000 (16:38 +0200)] 
pinctrl: provide pinmux_generic_add_pinfunction()

Several drivers call pinmux_generic_add_function() passing it the
contents of struct pinfunction as first three arguments. We can make
this shorter by simply providing an interface allowing to pass the
address of struct pinfunction directly when adding a new function.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/20250709-pinctrl-gpio-pinfuncs-v2-2-b6135149c0d9@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
7 weeks agopinctrl: pinmux: open-code PINCTRL_FUNCTION_DESC()
Bartosz Golaszewski [Wed, 9 Jul 2025 14:38:57 +0000 (16:38 +0200)] 
pinctrl: pinmux: open-code PINCTRL_FUNCTION_DESC()

This macro is only used in one place and pin function descriptors should
only be created by pinmux core so there's no point in exposing it to
other pinctrl users. Remove the macro and hand-code its functionality.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/20250709-pinctrl-gpio-pinfuncs-v2-1-b6135149c0d9@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
7 weeks agoMerge tag 'vfs-6.16-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Linus Torvalds [Sat, 19 Jul 2025 15:47:59 +0000 (08:47 -0700)] 
Merge tag 'vfs-6.16-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fixes from Christian Brauner:

 - Fix a memory leak in fcntl_dirnotify()

 - Raise SB_I_NOEXEC on secrement superblock instead of messing with
   flags on the mount

 - Add fsdevel and block mailing lists to uio entry. We had a few
   instances were very questionable stuff was added without either block
   or the VFS being aware of it

 - Fix netfs copy-to-cache so that it performs collection with
   ceph+fscache

 - Fix netfs race between cache write completion and ALL_QUEUED being
   set

 - Verify the inode mode when loading entries from disk in isofs

 - Avoid state_lock in iomap_set_range_uptodate()

 - Fix PIDFD_INFO_COREDUMP check in PIDFD_GET_INFO ioctl

 - Fix the incorrect return value in __cachefiles_write()

* tag 'vfs-6.16-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  MAINTAINERS: add block and fsdevel lists to iov_iter
  netfs: Fix race between cache write completion and ALL_QUEUED being set
  netfs: Fix copy-to-cache so that it performs collection with ceph+fscache
  fix a leak in fcntl_dirnotify()
  iomap: avoid unnecessary ifs_set_range_uptodate() with locks
  isofs: Verify inode mode when loading from disk
  cachefiles: Fix the incorrect return value in __cachefiles_write()
  secretmem: use SB_I_NOEXEC
  coredump: fix PIDFD_INFO_COREDUMP ioctl check

7 weeks agopinctrl: ma35: use new GPIO line value setter callbacks
Bartosz Golaszewski [Thu, 17 Jul 2025 12:57:58 +0000 (14:57 +0200)] 
pinctrl: ma35: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/20250717125758.53141-1-brgl@bgdev.pl
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
7 weeks agolandlock: Fix cosmetic change
Mickaël Salaün [Sat, 19 Jul 2025 10:42:00 +0000 (12:42 +0200)] 
landlock: Fix cosmetic change

This line removal should not be there and it makes it more difficult to
backport the following patch.

Cc: Günther Noack <gnoack@google.com>
Cc: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
Fixes: 7a11275c3787 ("landlock: Refactor layer helpers")
Link: https://lore.kernel.org/r/20250719104204.545188-2-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
7 weeks agomei: more prints with client prefix
Alexander Usyskin [Thu, 17 Jul 2025 14:11:11 +0000 (17:11 +0300)] 
mei: more prints with client prefix

Use client-aware print macro instead of usual device print in more
places to expand debug-ability.
The client-aware print macro prefixes the usual device print with
current connection endpoints.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Link: https://lore.kernel.org/r/20250717141112.1696482-3-alexander.usyskin@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 weeks agomei: bus: use cldev in prints
Alexander Usyskin [Thu, 17 Jul 2025 14:11:10 +0000 (17:11 +0300)] 
mei: bus: use cldev in prints

For unifomity, print using client device on bus where possible.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Link: https://lore.kernel.org/r/20250717141112.1696482-2-alexander.usyskin@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 weeks agoMerge tag 'iio-for-6.17a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23...
Greg Kroah-Hartman [Sat, 19 Jul 2025 07:42:35 +0000 (09:42 +0200)] 
Merge tag 'iio-for-6.17a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

IIO: New device support, features, late breaking fixes and cleanup for 6.17

The normal mixed bag. A few more fixes than usual as I failed to send
them out earlier.

New device support
==================

adi,ad4080
- New driver for this high speed ADC. Includes extensions to iio-backends
  necessary to support filter config, variable data lands and data
  alignment control.
adi,ad4170-4
- New driver for this 24-bit very feature rich ADC suited for weigh scale
  and thermocouple applications.
adi,ad7405
- New driver for this single channel isolated ADC with backend support
  (adi-axi-adc)
google,cros_ec_activity
- Add activity detection to the existing set of cros_ec drivers covering
  both human body and significant motion detection.
mediatek,mt6359
- Add support for MT6363 and MT6373 PMIC Auxiliary ADCs.
nicera,d3-323-aa
- New driver for this configurable Passive InfraRed sensor.

Device ID only
==============

mediatek,mt7981-auxadc
- Add ID to mt2701 driver as fully compatible with mt7986-auxadc.
rohm,bu79100g
- Add ID to ad7476 driver as fully compatible with TI ADS7866.

Features
========
Core
- New in_voltageY_convdelay to allow for devices to control timing
  offsets between sampling different channels.
adi,ad-sigma-delta-library
- Support SPI offload (later fix for missing Kconfig dependency)
adi,ad4851
- SPI 3-wire support.
adi,ad7606
- Power supply control.
- convdelay and calibbias support for calibration purposes.
- gain calibration support based on external filter resistance provided
  from device tree.
adi,ad7768-1
- Add output regulator for VCM output, typically used for preconditioning
  circuits.
- Add gpio controller for the 4 GPIOs.
- Multiple scan type support to enable 16-bit modes.
- Support synchronization over SPI.
- Filter type and oversampling ratio control.
- Low pass filter cut off read only attribute.
adi,adxl313
- FIFO support
- DC activity, inactivity detection with power-save on inactivity
- AC coupled activity detection
- Documentation for this complex driver.
- debugfs register access.
adi,adxl345
- Sampling frequency and sensor range controls.
bosch,bmi270
- Add step counter support.
invensense,icm42600
- Wake on motion support.

Cleanup and fixes
=================

backend
- Drop unused parameter from iio_backend_ovesampling_ratio_set()
docs
- Fix ABI docs around I and Q modifiers.
treewide
- Switch remaining drives to use maple tree regcache.
- Drop use of DRIVER_NAME style definitions when only used in one
  place.
- Drop unused export.h includes.
- Use = { } in place of memset in various drivers.
- Constify various info structures and related.
- Switch some drivers from array of chip_info structures to individual
  named structures.
adi,ad-sigma_delta library
- Fix over allocation of scan buffer. (bits/bytes confusion)
- Sort includes and apply iwyu principles to ensure sensible set.
- Use u8 instead of uint8_t
- Replace hard coded type sizes with sizeof() and BITS_TO_BYTES() as
  appropriate.
- Factor out setting of read address to reduce duplication.
- Switch to buffer predisable so error handling on buffer enable
  functions correctly (balanced against postenable).
adi,ad4000
- Don't use sift_right() on an unsigned value.
adi,ad7173
- Add missing check on spi_setup() succeeding.
- Simplify clock enable disable code using devm_clk_get_enabled()
- Fix channel index for syscalib_mode
- Fix number of configuration slots for some devics.
- Fix the channel used for calibration.
- Fix setting ODR up in probe.
adi,ad7380
- Drop unused oversampling_ratio getter function call as value never
  used.
adi,ad7606
- Exit if invalid dt_schema encountered rather than carrying on with
  unknown config.
adi,ad7768-1
- Ensure SYNC_IN pulse is long enough.
- Switch sampling_frequency_available to read_avail() callback.
adi,ada4250
- Ensuring a dma-safe buffer for regmap_bulk_read()
- Use a local dev variable to simplify code
- Relax chip ID matching to allow for fallback dt compatibles.
- Make use of devm_regulator_get_enabled_read_voltage() to replace
  equivalent code.
- Shuffle elements around in struct to improve logical groupings and
  reduce holes.
- Use dev_err_probe()
adi,adxl313
- Use regcache to reduce traffic.
- Factor out enabling of measurement.
adi,adxl345
- Drop irq from struct as only used locally in code
- Simplify measure enable function using regmap_update_bits()
- Replace some magic numbers by units.h defines
- Simplify interrupt mapping code
- Simplify FIFO read out.
adi,axi-dac
- Factor out code to check for bus free to reduce duplication.
avago,apds9306
- Use a helper to get register address in both get and set functions.
bosch,bmi160+bmi270
- Ensure triggers suspended and resumed correctly.
bosch,bmo055
- Fix theoretical OOB acces to hw_xlate array.
freescale,vf610
- Drop -ENOMEM error message as plenty of existing prints if memory
  allocation fails.
- Use dev_err_probe() and devm_clk_geT_enabled() to simplify probe().
kionix,kx022a
- Apply include what you use principles to includes.
invensense,itg3200
- Add missing dt-binding for this gyroscope.
invensense,icm42600
- Switch from int64_t and similar to s64 and other kernel types.
- Simplify arrangement of DMA safe buffers and potentially reduce
  structure size a little.
invensense,mpu6050
- Reduce duplication in aux read/write code.
- Use sysfs_emit() to replace scnprintf()
murata,irsd200
- Drop duplicate printing of ret in dev_err_probe()
nxp,lpc3220-adc
- Add missing clocks property to dt-binding.
st,spear600
- Convert dt-binding that got left behind in staging to yaml in the main
  tree.
st,stm32-adc
- Use dev_fwnode() rather than directly accessing the of_node.
vti,sca3000
- Use direct returns instead of gotos where simple.

Various other minor typo and white space fixes.

* tag 'iio-for-6.17a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (201 commits)
  iio: adc: ad_sigma_delta: Select IIO_BUFFER_DMAENGINE and SPI_OFFLOAD
  iio: adc: ad7173: fix setting ODR in probe
  iio: adc: ad7173: fix calibration channel
  iio: adc: ad7173: fix num_slots
  iio: adc: ad7173: fix channels index for syscalib_mode
  iio: adc: ad_sigma_delta: change to buffer predisable
  iio: ABI: fix correctness of I and Q modifiers
  iio: Add driver for Nicera D3-323-AA PIR sensor
  dt-bindings: iio: proximity: Add Nicera D3-323-AA PIR sensor
  dt-bindings: vendor-prefixes: Add Nicera
  iio: dac: vf610: Simplify with devm_clk_get_enabled()
  iio: adc: vf610: Simplify with dev_err_probe
  iio: adc: vf610: Drop -ENOMEM error message
  iio: imu: bno055: make bno055_sysfs_attr const
  iio: imu: bno055: fix OOB access of hw_xlate array
  dt-bindings: iio: adc: Add support for MT7981
  iio: accel: kionix-kx022a: Apply approximate iwyu principles to includes
  iio: adc: ad4170-4: Add support for weigh scale, thermocouple, and RTD sens
  iio: adc: ad4170-4: Add support for internal temperature sensor
  iio: adc: ad4170-4: Add GPIO controller support
  ...

7 weeks agoMerge tag 'fpga-for-6.17-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git...
Greg Kroah-Hartman [Sat, 19 Jul 2025 07:41:06 +0000 (09:41 +0200)] 
Merge tag 'fpga-for-6.17-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/fpga/linux-fpga into char-misc-next

Xu writes:

FPGA Manager changes for 6.17-rc1

- Marek's change fixes the incorrect use of sgtable calls.

All patches have been reviewed on the mailing list, and have been in the
last linux-next releases (as part of our for-next branch).

Signed-off-by: Xu Yilun <yilun.xu@intel.com>
* tag 'fpga-for-6.17-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/fpga/linux-fpga:
  zynq_fpga: use sgtable-based scatterlist wrappers

7 weeks agoMerge tag 'mhi-for-v6.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mani...
Greg Kroah-Hartman [Sat, 19 Jul 2025 07:37:37 +0000 (09:37 +0200)] 
Merge tag 'mhi-for-v6.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mani/mhi into char-misc-next

Manivannan writes:

MHI Host
========

- Make local functions static (as they should be).

- Fix the modem name for Foxconn T99W640 modem.

- Disable runtime PM for Qcom QDU100 modem as it doesn't support M3 state.

- Fix endianness of BHI vector table to allow MHI to work correctly on big
  endian platforms like PowerPC.

- Add modem support for Semtech EM929x, Foxconn T99W696 and Telit FN990B40
  modems.

- Fix the OOB access to Transfer Ring Element (TRE) by hardening the checks in
  parse_xfer_event().

* tag 'mhi-for-v6.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mani/mhi:
  bus: mhi: host: pci_generic: Add Telit FN990B40 modem support
  bus: mhi: host: Detect events pointing to unexpected TREs
  bus: mhi: host: pci_generic: Add Foxconn T99W696 modem
  bus: mhi: host: Use str_true_false() helper
  bus: mhi: host: pci_generic: Add support for EM929x and set MRU to 32768 for better performance.
  bus: mhi: host: Fix endianness of BHI vector table
  bus: mhi: host: pci_generic: Disable runtime PM for QDU100
  bus: mhi: host: pci_generic: Fix the modem name of Foxconn T99W640
  bus: mhi: host: Make local functions static

7 weeks agoMerge tag 'v6.16-rc6-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sat, 19 Jul 2025 05:32:30 +0000 (22:32 -0700)] 
Merge tag 'v6.16-rc6-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - fix creating special files to Samba when using SMB3.1.1 POSIX
   Extensions

 - fix incorrect caching on new file creation with directory leases
   enabled

 - two use after free fixes: one in oplock_break and one in async
   decryption

* tag 'v6.16-rc6-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  Fix SMB311 posix special file creation to servers which do not advertise reparse support
  smb: invalidate and close cached directory when creating child entries
  smb: client: fix use-after-free in crypt_message when using async crypto
  smb: client: fix use-after-free in cifs_oplock_break

7 weeks agosrcu: Add guards for SRCU-fast readers
Paul E. McKenney [Thu, 17 Jul 2025 18:55:41 +0000 (11:55 -0700)] 
srcu: Add guards for SRCU-fast readers

This adds the usual scoped_guard(srcu_fast, &my_srcu) and
guard(srcu_fast)(&my_srcu).

Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Neeraj Upadhyay (AMD) <neeraj.upadhyay@kernel.org>
7 weeks agobus: mhi: host: pci_generic: Add Telit FN990B40 modem support
Daniele Palmas [Wed, 16 Jul 2025 09:18:36 +0000 (11:18 +0200)] 
bus: mhi: host: pci_generic: Add Telit FN990B40 modem support

Add SDX72 based modem Telit FN990B40, reusing FN920C04 configuration.

01:00.0 Unassigned class [ff00]: Qualcomm Device 0309
        Subsystem: Device 1c5d:201a

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
[mani: added sdx72 in the comment to identify the chipset]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20250716091836.999364-1-dnlplm@gmail.com
7 weeks agobus: mhi: host: Detect events pointing to unexpected TREs
Youssef Samir [Mon, 14 Jul 2025 16:30:39 +0000 (18:30 +0200)] 
bus: mhi: host: Detect events pointing to unexpected TREs

When a remote device sends a completion event to the host, it contains a
pointer to the consumed TRE. The host uses this pointer to process all of
the TREs between it and the host's local copy of the ring's read pointer.
This works when processing completion for chained transactions, but can
lead to nasty results if the device sends an event for a single-element
transaction with a read pointer that is multiple elements ahead of the
host's read pointer.

For instance, if the host accesses an event ring while the device is
updating it, the pointer inside of the event might still point to an old
TRE. If the host uses the channel's xfer_cb() to directly free the buffer
pointed to by the TRE, the buffer will be double-freed.

This behavior was observed on an ep that used upstream EP stack without
'commit 6f18d174b73d ("bus: mhi: ep: Update read pointer only after buffer
is written")'. Where the device updated the events ring pointer before
updating the event contents, so it left a window where the host was able to
access the stale data the event pointed to, before the device had the
chance to update them. The usual pattern was that the host received an
event pointing to a TRE that is not immediately after the last processed
one, so it got treated as if it was a chained transaction, processing all
of the TREs in between the two read pointers.

This commit aims to harden the host by ensuring transactions where the
event points to a TRE that isn't local_rp + 1 are chained.

Fixes: 1d3173a3bae7 ("bus: mhi: core: Add support for processing events from client device")
Signed-off-by: Youssef Samir <quic_yabdulra@quicinc.com>
[mani: added stable tag and reworded commit message]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20250714163039.3438985-1-quic_yabdulra@quicinc.com
7 weeks agobus: mhi: host: pci_generic: Add Foxconn T99W696 modem
Slark Xiao [Wed, 28 May 2025 09:22:32 +0000 (17:22 +0800)] 
bus: mhi: host: pci_generic: Add Foxconn T99W696 modem

T99W696 modem is based on Qualcomm SDX61 chipset, which is an economic
version compared to the baseline SDX62/SDX65 chipsets. Add support for it
by introducing a new 'mhi_channel_config'. Since this modem supports the
NMEA channel, a new config is needed.

Signed-off-by: Slark Xiao <slark_xiao@163.com>
[mani: reworded commit message]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20250528092232.16111-1-slark_xiao@163.com
7 weeks agobus: mhi: host: Use str_true_false() helper
Yumeng Fang [Mon, 23 Jun 2025 12:28:14 +0000 (20:28 +0800)] 
bus: mhi: host: Use str_true_false() helper

Remove hard-coded strings by using the str_true_false() helper.

Signed-off-by: Yumeng Fang <fang.yumeng@zte.com.cn>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20250623202814633ukJqUDLU7BRlLLhvWkbD7@zte.com.cn
7 weeks agobus: mhi: host: pci_generic: Add support for EM929x and set MRU to 32768 for better...
Adam Xue [Wed, 28 May 2025 17:59:43 +0000 (10:59 -0700)] 
bus: mhi: host: pci_generic: Add support for EM929x and set MRU to 32768 for better performance.

Add MHI controller config for EM929x. It uses the same configuration
as EM919x. Also set the MRU to 32768 to improve downlink throughput.

02:00.0 Unassigned class [ff00]: Qualcomm Technologies, Inc Device 0308
Subsystem: Device 18d7:0301

Signed-off-by: Adam Xue <zxue@semtech.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20250528175943.12739-1-zxue@semtech.com
7 weeks agobus: mhi: host: Fix endianness of BHI vector table
Alexander Wilhelm [Mon, 19 May 2025 14:58:37 +0000 (16:58 +0200)] 
bus: mhi: host: Fix endianness of BHI vector table

On big endian platform like PowerPC, the MHI bus (which is little endian)
does not start properly. The following example shows the error messages by
using QCN9274 WLAN device with ath12k driver:

    ath12k_pci 0001:01:00.0: BAR 0: assigned [mem 0xc00000000-0xc001fffff 64bit]
    ath12k_pci 0001:01:00.0: MSI vectors: 1
    ath12k_pci 0001:01:00.0: Hardware name: qcn9274 hw2.0
    ath12k_pci 0001:01:00.0: failed to set mhi state: POWER_ON(2)
    ath12k_pci 0001:01:00.0: failed to start mhi: -110
    ath12k_pci 0001:01:00.0: failed to power up :-110
    ath12k_pci 0001:01:00.0: failed to create soc core: -110
    ath12k_pci 0001:01:00.0: failed to init core: -110
    ath12k_pci: probe of 0001:01:00.0 failed with error -110

The issue seems to be with the incorrect DMA address/size used for
transferring the firmware image over BHI. So fix it by converting the DMA
address and size of the BHI vector table to little endian format before
sending them to the device.

Fixes: 6cd330ae76ff ("bus: mhi: core: Add support for ringing channel/event ring doorbells")
Signed-off-by: Alexander Wilhelm <alexander.wilhelm@westermo.com>
[mani: added stable tag and reworded commit message]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com>
Reviewed-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20250519145837.958153-1-alexander.wilhelm@westermo.com
7 weeks agobus: mhi: host: pci_generic: Disable runtime PM for QDU100
Vivek Pernamitta [Fri, 25 Apr 2025 07:19:31 +0000 (12:49 +0530)] 
bus: mhi: host: pci_generic: Disable runtime PM for QDU100

The QDU100 device does not support the MHI M3 state, necessitating the
disabling of runtime PM for this device. It is essential to disable
runtime PM if the device does not support M3 state.

Signed-off-by: Vivek Pernamitta <quic_vpernami@quicinc.com>
[mani: Fixed the kdoc comment for no_m3]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Link: https://patch.msgid.link/20250425-vdev_next-20250411_pm_disable-v4-1-d4870a73ebf9@quicinc.com
7 weeks agobus: mhi: host: pci_generic: Fix the modem name of Foxconn T99W640
Slark Xiao [Fri, 6 Jun 2025 09:50:19 +0000 (17:50 +0800)] 
bus: mhi: host: pci_generic: Fix the modem name of Foxconn T99W640

T99W640 was mistakenly mentioned as T99W515. T99W515 is a LGA device, not
a M.2 modem device. So correct it's name to avoid name mismatch issue.

Fixes: bf30a75e6e00 ("bus: mhi: host: Add support for Foxconn SDX72 modems")
Signed-off-by: Slark Xiao <slark_xiao@163.com>
[mani: commit message fixup]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20250606095019.383992-1-slark_xiao@163.com
7 weeks agoMerge tag 'v6.16-p7' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Sat, 19 Jul 2025 01:15:21 +0000 (18:15 -0700)] 
Merge tag 'v6.16-p7' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:
 "This fixes buffer overflows in qat and chelsio"

* tag 'v6.16-p7' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: qat - Use crypto_shash_export_core
  crypto: chelsio - Use crypto_shash_export_core

7 weeks agoMerge branch 'mlx5-misc-fixes-2025-07-17'
Jakub Kicinski [Sat, 19 Jul 2025 00:33:05 +0000 (17:33 -0700)] 
Merge branch 'mlx5-misc-fixes-2025-07-17'

Tariq Toukan says:

====================
mlx5 misc fixes 2025-07-17

This small patchset provides misc bug fixes from the team to the mlx5
driver.
====================

Link: https://patch.msgid.link/1752753970-261832-1-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet/mlx5: E-Switch, Fix peer miss rules to use peer eswitch
Shahar Shitrit [Thu, 17 Jul 2025 12:06:10 +0000 (15:06 +0300)] 
net/mlx5: E-Switch, Fix peer miss rules to use peer eswitch

In the original design, it is assumed local and peer eswitches have the
same number of vfs. However, in new firmware, local and peer eswitches
can have different number of vfs configured by mlxconfig.  In such
configuration, it is incorrect to derive the number of vfs from the
local device's eswitch.

Fix this by updating the peer miss rules add and delete functions to use
the peer device's eswitch and vf count instead of the local device's
information, ensuring correct behavior regardless of vf configuration
differences.

Fixes: ac004b832128 ("net/mlx5e: E-Switch, Add peer miss rules")
Signed-off-by: Shahar Shitrit <shshitrit@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1752753970-261832-3-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet/mlx5: Fix memory leak in cmd_exec()
Chiara Meiohas [Thu, 17 Jul 2025 12:06:09 +0000 (15:06 +0300)] 
net/mlx5: Fix memory leak in cmd_exec()

If cmd_exec() is called with callback and mlx5_cmd_invoke() returns an
error, resources allocated in cmd_exec() will not be freed.

Fix the code to release the resources if mlx5_cmd_invoke() returns an
error.

Fixes: f086470122d5 ("net/mlx5: cmdif, Return value improvements")
Reported-by: Alex Tereshkin <atereshkin@nvidia.com>
Signed-off-by: Chiara Meiohas <cmeiohas@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Vlad Dumitrescu <vdumitrescu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1752753970-261832-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agobe2net: Use correct byte order and format string for TCP seq and ack_seq
Alok Tiwari [Thu, 17 Jul 2025 19:35:47 +0000 (12:35 -0700)] 
be2net: Use correct byte order and format string for TCP seq and ack_seq

The TCP header fields seq and ack_seq are 32-bit values in network
byte order as (__be32). these fields were earlier printed using
ntohs(), which converts only 16-bit values and produces incorrect
results for 32-bit fields. This patch is changeing the conversion
to ntohl(), ensuring correct interpretation of these sequence numbers.

Notably, the format specifier is updated from %d to %u to reflect the
unsigned nature of these fields.

improves the accuracy of debug log messages for TCP sequence and
acknowledgment numbers during TX timeouts.

Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250717193552.3648791-1-alok.a.tiwari@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet: bcmasp: Add support for re-starting auto-negotiation
Florian Fainelli [Thu, 17 Jul 2025 18:09:15 +0000 (11:09 -0700)] 
net: bcmasp: Add support for re-starting auto-negotiation

Wire-up ethtool_ops::nway_reset to phy_ethtool_nway_reset in order to
support re-starting auto-negotiation.

Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250717180915.2611890-1-florian.fainelli@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agoMerge branch 'net-maintain-netif-vs-dev-prefix-semantics'
Jakub Kicinski [Sat, 19 Jul 2025 00:27:51 +0000 (17:27 -0700)] 
Merge branch 'net-maintain-netif-vs-dev-prefix-semantics'

Stanislav Fomichev says:

====================
net: maintain netif vs dev prefix semantics

Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate. We care only
about driver-visible APIs, don't touch stack-internal routines.

The rest seem to be ok:
  * dev_xdp_prog_count - mostly called by sw drivers (bonding), should not matter
  * dev_get_by_xxx - too many to reasonably cleanup, already have different flavors
  * dev_fetch_sw_netstats - don't need instance lock
  * dev_get_tstats64 - never called directly, only as an ndo callback
  * dev_pick_tx_zero - never called directly, only as an ndo callback
  * dev_add_pack / dev_remove_pack - called early enough (in module init) to not matter
  * dev_get_iflink - mostly called by sw drivers, should not matter
  * dev_fill_forward_path - ditto
  * dev_getbyhwaddr_rcu - ditto
  * dev_getbyhwaddr - ditto
  * dev_getfirstbyhwtype - ditto
  * dev_valid_name - ditto
  * __dev_forward_skb dev_forward_skb dev_queue_xmit_nit - established helpers, no netif vs dev distinction
====================

Link: https://patch.msgid.link/20250717172333.1288349-1-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet: s/dev_close_many/netif_close_many/
Stanislav Fomichev [Thu, 17 Jul 2025 17:23:33 +0000 (10:23 -0700)] 
net: s/dev_close_many/netif_close_many/

Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.

netif_close_many is used only by vlan/dsa and one mtk driver, so move it into
NETDEV_INTERNAL namespace.

Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-8-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet: s/dev_set_threaded/netif_set_threaded/
Stanislav Fomichev [Thu, 17 Jul 2025 17:23:32 +0000 (10:23 -0700)] 
net: s/dev_set_threaded/netif_set_threaded/

Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.

Note that one dev_set_threaded call still remains in mt76 for debugfs file.

Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-7-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet: s/dev_get_flags/netif_get_flags/
Stanislav Fomichev [Thu, 17 Jul 2025 17:23:31 +0000 (10:23 -0700)] 
net: s/dev_get_flags/netif_get_flags/

Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.

Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-6-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet: s/__dev_set_mtu/__netif_set_mtu/
Stanislav Fomichev [Thu, 17 Jul 2025 17:23:30 +0000 (10:23 -0700)] 
net: s/__dev_set_mtu/__netif_set_mtu/

Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.

__netif_set_mtu is used only by bond, so move it into
NETDEV_INTERNAL namespace.

Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-5-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet: s/dev_pre_changeaddr_notify/netif_pre_changeaddr_notify/
Stanislav Fomichev [Thu, 17 Jul 2025 17:23:29 +0000 (10:23 -0700)] 
net: s/dev_pre_changeaddr_notify/netif_pre_changeaddr_notify/

Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.

netif_pre_changeaddr_notify is used only by ipvlan/bond, so move it into
NETDEV_INTERNAL namespace.

Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-4-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet: s/dev_get_mac_address/netif_get_mac_address/
Stanislav Fomichev [Thu, 17 Jul 2025 17:23:28 +0000 (10:23 -0700)] 
net: s/dev_get_mac_address/netif_get_mac_address/

Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.

netif_get_mac_address is used only by tun/tap, so move it into
NETDEV_INTERNAL namespace.

Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-3-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet: s/dev_get_port_parent_id/netif_get_port_parent_id/
Stanislav Fomichev [Thu, 17 Jul 2025 17:23:27 +0000 (10:23 -0700)] 
net: s/dev_get_port_parent_id/netif_get_port_parent_id/

Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.

Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-2-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agoselftests: rtnetlink: Add operational state test
Ido Schimmel [Thu, 17 Jul 2025 12:51:51 +0000 (15:51 +0300)] 
selftests: rtnetlink: Add operational state test

Virtual devices (e.g., VXLAN) that do not have a notion of a carrier are
created with an "UNKNOWN" operational state which some users find
confusing [1].

It is possible to set the operational state from user space either
during device creation or afterwards and some applications will start
doing that in order to avoid the above problem.

Add a test for this functionality to ensure it does not regress.

[1] https://lore.kernel.org/netdev/20241119153703.71f97b76@hermes.local/

Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250717125151.466882-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet: ti: icssg-prueth: Fix buffer allocation for ICSSG
Himanshu Mittal [Thu, 17 Jul 2025 09:42:20 +0000 (15:12 +0530)] 
net: ti: icssg-prueth: Fix buffer allocation for ICSSG

Fixes overlapping buffer allocation for ICSSG peripheral
used for storing packets to be received/transmitted.
There are 3 buffers:
1. Buffer for Locally Injected Packets
2. Buffer for Forwarding Packets
3. Buffer for Host Egress Packets

In existing allocation buffers for 2. and 3. are overlapping causing
packet corruption.

Packet corruption observations:
During tcp iperf testing, due to overlapping buffers the received ack
packet overwrites the packet to be transmitted. So, we see packets on
wire with the ack packet content inside the content of next TCP packet
from sender device.

Details for AM64x switch mode:
-> Allocation by existing driver:
+---------+-------------------------------------------------------------+
|         |          SLICE 0             |          SLICE 1             |
|         +------+--------------+--------+------+--------------+--------+
|         | Slot | Base Address | Size   | Slot | Base Address | Size   |
|---------+------+--------------+--------+------+--------------+--------+
|         | 0    | 70000000     | 0x2000 | 0    | 70010000     | 0x2000 |
|         | 1    | 70002000     | 0x2000 | 1    | 70012000     | 0x2000 |
|         | 2    | 70004000     | 0x2000 | 2    | 70014000     | 0x2000 |
| FWD     | 3    | 70006000     | 0x2000 | 3    | 70016000     | 0x2000 |
| Buffers | 4    | 70008000     | 0x2000 | 4    | 70018000     | 0x2000 |
|         | 5    | 7000A000     | 0x2000 | 5    | 7001A000     | 0x2000 |
|         | 6    | 7000C000     | 0x2000 | 6    | 7001C000     | 0x2000 |
|         | 7    | 7000E000     | 0x2000 | 7    | 7001E000     | 0x2000 |
+---------+------+--------------+--------+------+--------------+--------+
|         | 8    | 70020000     | 0x1000 | 8    | 70028000     | 0x1000 |
|         | 9    | 70021000     | 0x1000 | 9    | 70029000     | 0x1000 |
|         | 10   | 70022000     | 0x1000 | 10   | 7002A000     | 0x1000 |
| Our     | 11   | 70023000     | 0x1000 | 11   | 7002B000     | 0x1000 |
| LI      | 12   | 00000000     | 0x0    | 12   | 00000000     | 0x0    |
| Buffers | 13   | 00000000     | 0x0    | 13   | 00000000     | 0x0    |
|         | 14   | 00000000     | 0x0    | 14   | 00000000     | 0x0    |
|         | 15   | 00000000     | 0x0    | 15   | 00000000     | 0x0    |
+---------+------+--------------+--------+------+--------------+--------+
|         | 16   | 70024000     | 0x1000 | 16   | 7002C000     | 0x1000 |
|         | 17   | 70025000     | 0x1000 | 17   | 7002D000     | 0x1000 |
|         | 18   | 70026000     | 0x1000 | 18   | 7002E000     | 0x1000 |
| Their   | 19   | 70027000     | 0x1000 | 19   | 7002F000     | 0x1000 |
| LI      | 20   | 00000000     | 0x0    | 20   | 00000000     | 0x0    |
| Buffers | 21   | 00000000     | 0x0    | 21   | 00000000     | 0x0    |
|         | 22   | 00000000     | 0x0    | 22   | 00000000     | 0x0    |
|         | 23   | 00000000     | 0x0    | 23   | 00000000     | 0x0    |
+---------+------+--------------+--------+------+--------------+--------+
--> here 16, 17, 18, 19 overlapping with below express buffer

+-----+-----------------------------------------------+
|     |       SLICE 0       |        SLICE 1          |
|     +------------+----------+------------+----------+
|     | Start addr | End addr | Start addr | End addr |
+-----+------------+----------+------------+----------+
| EXP | 70024000   | 70028000 | 7002C000   | 70030000 | <-- Overlapping
| PRE | 70030000   | 70033800 | 70034000   | 70037800 |
+-----+------------+----------+------------+----------+

+---------------------+----------+----------+
|                     | SLICE 0  |  SLICE 1 |
+---------------------+----------+----------+
| Default Drop Offset | 00000000 | 00000000 |     <-- Field not configured
+---------------------+----------+----------+

-> Allocation this patch brings:
+---------+-------------------------------------------------------------+
|         |          SLICE 0             |          SLICE 1             |
|         +------+--------------+--------+------+--------------+--------+
|         | Slot | Base Address | Size   | Slot | Base Address | Size   |
|---------+------+--------------+--------+------+--------------+--------+
|         | 0    | 70000000     | 0x2000 | 0    | 70040000     | 0x2000 |
|         | 1    | 70002000     | 0x2000 | 1    | 70042000     | 0x2000 |
|         | 2    | 70004000     | 0x2000 | 2    | 70044000     | 0x2000 |
| FWD     | 3    | 70006000     | 0x2000 | 3    | 70046000     | 0x2000 |
| Buffers | 4    | 70008000     | 0x2000 | 4    | 70048000     | 0x2000 |
|         | 5    | 7000A000     | 0x2000 | 5    | 7004A000     | 0x2000 |
|         | 6    | 7000C000     | 0x2000 | 6    | 7004C000     | 0x2000 |
|         | 7    | 7000E000     | 0x2000 | 7    | 7004E000     | 0x2000 |
+---------+------+--------------+--------+------+--------------+--------+
|         | 8    | 70010000     | 0x1000 | 8    | 70050000     | 0x1000 |
|         | 9    | 70011000     | 0x1000 | 9    | 70051000     | 0x1000 |
|         | 10   | 70012000     | 0x1000 | 10   | 70052000     | 0x1000 |
| Our     | 11   | 70013000     | 0x1000 | 11   | 70053000     | 0x1000 |
| LI      | 12   | 00000000     | 0x0    | 12   | 00000000     | 0x0    |
| Buffers | 13   | 00000000     | 0x0    | 13   | 00000000     | 0x0    |
|         | 14   | 00000000     | 0x0    | 14   | 00000000     | 0x0    |
|         | 15   | 00000000     | 0x0    | 15   | 00000000     | 0x0    |
+---------+------+--------------+--------+------+--------------+--------+
|         | 16   | 70014000     | 0x1000 | 16   | 70054000     | 0x1000 |
|         | 17   | 70015000     | 0x1000 | 17   | 70055000     | 0x1000 |
|         | 18   | 70016000     | 0x1000 | 18   | 70056000     | 0x1000 |
| Their   | 19   | 70017000     | 0x1000 | 19   | 70057000     | 0x1000 |
| LI      | 20   | 00000000     | 0x0    | 20   | 00000000     | 0x0    |
| Buffers | 21   | 00000000     | 0x0    | 21   | 00000000     | 0x0    |
|         | 22   | 00000000     | 0x0    | 22   | 00000000     | 0x0    |
|         | 23   | 00000000     | 0x0    | 23   | 00000000     | 0x0    |
+---------+------+--------------+--------+------+--------------+--------+

+-----+-----------------------------------------------+
|     |       SLICE 0       |        SLICE 1          |
|     +------------+----------+------------+----------+
|     | Start addr | End addr | Start addr | End addr |
+-----+------------+----------+------------+----------+
| EXP | 70018000   | 7001C000 | 70058000   | 7005C000 |
| PRE | 7001C000   | 7001F800 | 7005C000   | 7005F800 |
+-----+------------+----------+------------+----------+

+---------------------+----------+----------+
|                     | SLICE 0  |  SLICE 1 |
+---------------------+----------+----------+
| Default Drop Offset | 7001F800 | 7005F800 |
+---------------------+----------+----------+

Rootcause: missing buffer configuration for Express frames in
function: prueth_fw_offload_buffer_setup()

Details:
Driver implements two distinct buffer configuration functions that are
invoked based on the driver state and ICSSG firmware:-
- prueth_fw_offload_buffer_setup()
- prueth_emac_buffer_setup()

During initialization, driver creates standard network interfaces
(netdevs) and configures buffers via prueth_emac_buffer_setup().
This function properly allocates and configures all required memory
regions including:
- LI buffers
- Express packet buffers
- Preemptible packet buffers

However, when the driver transitions to an offload mode (switch/HSR/PRP),
buffer reconfiguration is handled by prueth_fw_offload_buffer_setup().
This function does not reconfigure the buffer regions required for
Express packets, leading to incorrect buffer allocation.

Fixes: abd5576b9c57 ("net: ti: icssg-prueth: Add support for ICSSG switch firmware")
Signed-off-by: Himanshu Mittal <h-mittal1@ti.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250717094220.546388-1-h-mittal1@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet: selftests: add PHY-loopback test for bad TCP checksums
Oleksij Rempel [Thu, 17 Jul 2025 08:35:24 +0000 (10:35 +0200)] 
net: selftests: add PHY-loopback test for bad TCP checksums

Detect NICs and drivers that either drop frames with a corrupted TCP
checksum or, worse, pass them up as valid.  The test flips one bit in
the checksum, transmits the packet in internal loopback, and fails when
the driver reports CHECKSUM_UNNECESSARY.

Discussed at:
https://lore.kernel.org/all/20250625132117.1b3264e8@kernel.org/

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250717083524.1645069-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agodpaa2-switch: Fix device reference count leak in MAC endpoint handling
Ma Ke [Thu, 17 Jul 2025 02:23:09 +0000 (10:23 +0800)] 
dpaa2-switch: Fix device reference count leak in MAC endpoint handling

The fsl_mc_get_endpoint() function uses device_find_child() for
localization, which implicitly calls get_device() to increment the
device's reference count before returning the pointer. However, the
caller dpaa2_switch_port_connect_mac() fails to properly release this
reference in multiple scenarios. We should call put_device() to
decrement reference count properly.

As comment of device_find_child() says, 'NOTE: you will need to drop
the reference with put_device() after use'.

Found by code review.

Cc: stable@vger.kernel.org
Fixes: 84cba72956fd ("dpaa2-switch: integrate the MAC endpoint support")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250717022309.3339976-3-make24@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agodpaa2-eth: Fix device reference count leak in MAC endpoint handling
Ma Ke [Thu, 17 Jul 2025 02:23:08 +0000 (10:23 +0800)] 
dpaa2-eth: Fix device reference count leak in MAC endpoint handling

The fsl_mc_get_endpoint() function uses device_find_child() for
localization, which implicitly calls get_device() to increment the
device's reference count before returning the pointer. However, the
caller dpaa2_eth_connect_mac() fails to properly release this
reference in multiple scenarios. We should call put_device() to
decrement reference count properly.

As comment of device_find_child() says, 'NOTE: you will need to drop
the reference with put_device() after use'.

Found by code review.

Cc: stable@vger.kernel.org
Fixes: 719479230893 ("dpaa2-eth: add MAC/PHY support through phylink")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250717022309.3339976-2-make24@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agobus: fsl-mc: Fix potential double device reference in fsl_mc_get_endpoint()
Ma Ke [Thu, 17 Jul 2025 02:23:07 +0000 (10:23 +0800)] 
bus: fsl-mc: Fix potential double device reference in fsl_mc_get_endpoint()

The fsl_mc_get_endpoint() function may call fsl_mc_device_lookup()
twice, which would increment the device's reference count twice if
both lookups find a device. This could lead to a reference count leak.

Found by code review.

Cc: stable@vger.kernel.org
Fixes: 1ac210d128ef ("bus: fsl-mc: add the fsl_mc_get_endpoint function")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Fixes: 8567494cebe5 ("bus: fsl-mc: rescan devices if endpoint not found")
Link: https://patch.msgid.link/20250717022309.3339976-1-make24@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agolibbpf: Verify that arena map exists when adding arena relocations
Eduard Zingerman [Fri, 18 Jul 2025 22:20:59 +0000 (15:20 -0700)] 
libbpf: Verify that arena map exists when adding arena relocations

Fuzzer reported a memory access error in bpf_program__record_reloc()
that happens when:
- ".addr_space.1" section exists
- there is a relocation referencing this section
- there are no arena maps defined in BTF.

Sanity checks for maps existence are already present in
bpf_program__record_reloc(), hence this commit adds another one.

[1] https://github.com/libbpf/libbpf/actions/runs/16375110681/job/46272998064

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250718222059.281526-1-eddyz87@gmail.com
7 weeks agonet: track pfmemalloc drops via SKB_DROP_REASON_PFMEMALLOC
Jesper Dangaard Brouer [Wed, 16 Jul 2025 16:26:53 +0000 (18:26 +0200)] 
net: track pfmemalloc drops via SKB_DROP_REASON_PFMEMALLOC

Add a new SKB drop reason (SKB_DROP_REASON_PFMEMALLOC) to track packets
dropped due to memory pressure. In production environments, we've observed
memory exhaustion reported by memory layer stack traces, but these drops
were not properly tracked in the SKB drop reason infrastructure.

While most network code paths now properly report pfmemalloc drops, some
protocol-specific socket implementations still use sk_filter() without
drop reason tracking:
- Bluetooth L2CAP sockets
- CAIF sockets
- IUCV sockets
- Netlink sockets
- SCTP sockets
- Unix domain sockets

These remaining cases represent less common paths and could be converted
in a follow-up patch if needed. The current implementation provides
significantly improved observability into memory pressure events in the
network stack, especially for key protocols like TCP and UDP, helping to
diagnose problems in production environments.

Reported-by: Matt Fleming <mfleming@cloudflare.com>
Signed-off-by: Jesper Dangaard Brouer <hawk@kernel.org>
Link: https://patch.msgid.link/175268316579.2407873.11634752355644843509.stgit@firesoul
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agonet: stream: add description for sk_stream_write_space()
Suchit Karunakaran [Wed, 16 Jul 2025 15:34:04 +0000 (21:04 +0530)] 
net: stream: add description for sk_stream_write_space()

Add a proper description for the sk_stream_write_space() function as
previously marked by a FIXME comment.
No functional changes.

Signed-off-by: Suchit Karunakaran <suchitkarunakaran@gmail.com>
Link: https://patch.msgid.link/20250716153404.7385-1-suchitkarunakaran@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 weeks agoMerge branch 'for-6.17/cxl-events-updates' into cxl-for-next
Dave Jiang [Fri, 18 Jul 2025 23:15:44 +0000 (16:15 -0700)] 
Merge branch 'for-6.17/cxl-events-updates' into cxl-for-next

Update Common Event Record to CXL r3.2 definition.
Add additional validity check for event records.
Add memory sparing event record tracing.

7 weeks agoMerge tag 'riscv-for-linus-6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 18 Jul 2025 22:31:46 +0000 (15:31 -0700)] 
Merge tag 'riscv-for-linus-6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - Three fixes for unnecessary spew: an ACPI CPPC boot-time debug
   message, the link-time warnings for R_RISCV_NONE in binaries, and
   some compile-time warnings in __put_user_nocheck

 - A fix for a race during text patching

 - Interrupts are no longer disabled during exception handling

 - A fix for a missing sign extension in the misaligned load handler

 - A fix to avoid static ftrace being selected in Kconfig, as we have
   moved to dynamic ftrace

* tag 'riscv-for-linus-6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: uaccess: Fix -Wuninitialized and -Wshadow in __put_user_nocheck
  riscv: Stop supporting static ftrace
  riscv: traps_misaligned: properly sign extend value in misaligned load handler
  riscv: Enable interrupt during exception handling
  riscv: ftrace: Properly acquire text_mutex to fix a race condition
  ACPI: RISC-V: Remove unnecessary CPPC debug message
  riscv: Stop considering R_RISCV_NONE as bad relocations

7 weeks agocxl/region: Fix an ERR_PTR() vs NULL bug
Dan Carpenter [Fri, 18 Jul 2025 21:22:40 +0000 (16:22 -0500)] 
cxl/region: Fix an ERR_PTR() vs NULL bug

The __cxl_decoder_detach() function is expected to return NULL on error
but this error path accidentally returns an error pointer.  It could
potentially lead to an error pointer dereference in the caller.  Change
it to return NULL.

Fixes: b3a88225519c ("cxl/region: Consolidate cxl_decoder_kill_region() and cxl_region_detach()")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/7def7da0-326a-410d-8c92-718c8963c0a2@sabinyo.mountain
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
7 weeks agoiommufd: Rename some shortterm-related identifiers
Xu Yilun [Wed, 16 Jul 2025 07:03:49 +0000 (15:03 +0800)] 
iommufd: Rename some shortterm-related identifiers

Rename the shortterm-related identifiers to wait-related.

The usage of shortterm_users refcount is now beyond its name.  It is
also used for references which live longer than an ioctl execution.
E.g. vdev holds idev's shortterm_users refcount on vdev allocation,
releases it during idev's pre_destroy(). Rename the refcount as
wait_cnt, since it is always used to sync the referencing & the
destruction of the object by waiting for it to go to zero.

List all changed identifiers:

  iommufd_object::shortterm_users -> iommufd_object::wait_cnt
  REMOVE_WAIT_SHORTTERM -> REMOVE_WAIT
  iommufd_object_dec_wait_shortterm() -> iommufd_object_dec_wait()
  zerod_shortterm -> zerod_wait_cnt

No functional change intended.

Link: https://patch.msgid.link/r/20250716070349.1807226-9-yilun.xu@linux.intel.com
Suggested-by: Kevin Tian <kevin.tian@intel.com>
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
7 weeks agoiommufd/selftest: Add coverage for vdevice tombstone
Xu Yilun [Wed, 16 Jul 2025 07:03:48 +0000 (15:03 +0800)] 
iommufd/selftest: Add coverage for vdevice tombstone

This tests the flow to tombstone vdevice when idevice is to be unbound
before vdevice destruction. The expected results of the tombstone are:

 - The vdevice ID can't be reused anymore (not tested in this patch).
 - Even ioctl(IOMMU_DESTROY) can't free the vdevice ID.
 - iommufd_fops_release() can still free everything.

Link: https://patch.msgid.link/r/20250716070349.1807226-8-yilun.xu@linux.intel.com
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
7 weeks agoiommufd/selftest: Explicitly skip tests for inapplicable variant
Xu Yilun [Wed, 16 Jul 2025 07:03:47 +0000 (15:03 +0800)] 
iommufd/selftest: Explicitly skip tests for inapplicable variant

no_viommu is not applicable for some viommu/vdevice tests. Explicitly
report the skipping, don't do it silently.

Opportunistically adjust the line wrappings after the indentation
changes using git clang-format.

Only add the prints. No functional change intended.

Link: https://patch.msgid.link/r/20250716070349.1807226-7-yilun.xu@linux.intel.com
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
7 weeks agoiommufd/vdevice: Remove struct device reference from struct vdevice
Xu Yilun [Wed, 16 Jul 2025 07:03:46 +0000 (15:03 +0800)] 
iommufd/vdevice: Remove struct device reference from struct vdevice

Remove struct device *dev from struct vdevice.

The dev pointer is the Plan B for vdevice to reference the physical
device. As now vdev->idev is added without refcounting concern, just
use vdev->idev->dev when needed. To avoid exposing
struct iommufd_device in the public header, export a
iommufd_vdevice_to_device() helper.

Link: https://patch.msgid.link/r/20250716070349.1807226-6-yilun.xu@linux.intel.com
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Co-developed-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
7 weeks agoiommufd: Destroy vdevice on idevice destroy
Xu Yilun [Wed, 16 Jul 2025 07:03:45 +0000 (15:03 +0800)] 
iommufd: Destroy vdevice on idevice destroy

Destroy iommufd_vdevice (vdev) on iommufd_idevice (idev) destruction so
that vdev can't outlive idev.

idev represents the physical device bound to iommufd, while the vdev
represents the virtual instance of the physical device in the VM. The
lifecycle of the vdev should not be longer than idev. This doesn't
cause real problem on existing use cases cause vdev doesn't impact the
physical device, only provides virtualization information. But to
extend vdev for Confidential Computing (CC), there are needs to do
secure configuration for the vdev, e.g. TSM Bind/Unbind. These
configurations should be rolled back on idev destroy, or the external
driver (VFIO) functionality may be impact.

The idev is created by external driver so its destruction can't fail.
The idev implements pre_destroy() op to actively remove its associated
vdev before destroying itself. There are 3 cases on idev pre_destroy():

  1. vdev is already destroyed by userspace. No extra handling needed.
  2. vdev is still alive. Use iommufd_object_tombstone_user() to
     destroy vdev and tombstone the vdev ID.
  3. vdev is being destroyed by userspace. The vdev ID is already
     freed, but vdev destroy handler is not completed. This requires
     multi-threads syncing - vdev holds idev's short term users
     reference until vdev destruction completes, idev leverages
     existing wait_shortterm mechanism for syncing.

idev should also block any new reference to it after pre_destroy(),
or the following wait shortterm would timeout. Introduce a 'destroying'
flag, set it to true on idev pre_destroy(). Any attempt to reference
idev should honor this flag under the protection of
idev->igroup->lock.

Link: https://patch.msgid.link/r/20250716070349.1807226-5-yilun.xu@linux.intel.com
Originally-by: Nicolin Chen <nicolinc@nvidia.com>
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Co-developed-by: "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
Signed-off-by: "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
7 weeks agoiommufd: Add a pre_destroy() op for objects
Xu Yilun [Wed, 16 Jul 2025 07:03:44 +0000 (15:03 +0800)] 
iommufd: Add a pre_destroy() op for objects

Add a pre_destroy() op which gives objects a chance to clear their
short term users references before destruction. This op is intended for
external driver created objects (e.g. idev) which does deterministic
destruction.

In order to manage the lifecycle of interrelated objects as well as the
deterministic destruction (e.g. vdev can't outlive idev, and idev
destruction can't fail), short term users references are allowed to
live out of an ioctl execution. An immediate use case is, vdev holds
idev's short term user reference until vdev destruction completes, idev
leverages existing wait_shortterm mechanism to ensure it is destroyed
after vdev.

This extended usage makes the referenced object unable to just wait for
its reference gone. It needs to actively trigger the reference removal,
as well as prevent new references before wait. Should implement these
work in pre_destroy().

Link: https://patch.msgid.link/r/20250716070349.1807226-4-yilun.xu@linux.intel.com
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
7 weeks agoiommufd: Add iommufd_object_tombstone_user() helper
Xu Yilun [Wed, 16 Jul 2025 07:03:43 +0000 (15:03 +0800)] 
iommufd: Add iommufd_object_tombstone_user() helper

Add the iommufd_object_tombstone_user() helper, which allows the caller
to destroy an iommufd object created by userspace.

This is useful on some destroy paths when the kernel caller finds the
object should have been removed by userspace but is still alive. With
this helper, the caller destroys the object but leave the object ID
reserved (so called tombstone). The tombstone prevents repurposing the
object ID without awareness of the original user.

Since this happens for abnormal userspace behavior, for simplicity, the
tombstoned object ID would be permanently leaked until
iommufd_fops_release(). I.e. the original user gets an error when
calling ioctl(IOMMU_DESTROY) on that ID.

The first use case would be to ensure the iommufd_vdevice can't outlive
the associated iommufd_device.

Link: https://patch.msgid.link/r/20250716070349.1807226-3-yilun.xu@linux.intel.com
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Co-developed-by: "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
Signed-off-by: "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
7 weeks agoiommufd/viommu: Roll back to use iommufd_object_alloc() for vdevice
Xu Yilun [Wed, 16 Jul 2025 07:03:42 +0000 (15:03 +0800)] 
iommufd/viommu: Roll back to use iommufd_object_alloc() for vdevice

To solve the vdevice lifecycle issue, future patches make the vdevice
allocation protected by lock. That will make
_iommufd_object_alloc_ucmd() not applicable for vdevice. Roll back to
use _iommufd_object_alloc() for preparation.

Link: https://patch.msgid.link/r/20250716070349.1807226-2-yilun.xu@linux.intel.com
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
7 weeks agoiommufd/selftest: Test reserved regions near ULONG_MAX
Jason Gunthorpe [Thu, 17 Jul 2025 17:59:02 +0000 (14:59 -0300)] 
iommufd/selftest: Test reserved regions near ULONG_MAX

This has triggered an overflow inside the ioas iova auto allocation logic,
test it directly. Use the same stimulus syzkaller found.

Link: https://patch.msgid.link/all/2-v1-7b4a16fc390b+10f4-iommufd_alloc_overflow_jgg@nvidia.com/
Tested-by: Yi Liu <yi.l.liu@intel.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
7 weeks agotracing/osnoise: Fix crash in timerlat_dump_stack()
Tomas Glozar [Wed, 16 Jul 2025 14:36:01 +0000 (16:36 +0200)] 
tracing/osnoise: Fix crash in timerlat_dump_stack()

We have observed kernel panics when using timerlat with stack saving,
with the following dmesg output:

memcpy: detected buffer overflow: 88 byte write of buffer size 0
WARNING: CPU: 2 PID: 8153 at lib/string_helpers.c:1032 __fortify_report+0x55/0xa0
CPU: 2 UID: 0 PID: 8153 Comm: timerlatu/2 Kdump: loaded Not tainted 6.15.3-200.fc42.x86_64 #1 PREEMPT(lazy)
Call Trace:
 <TASK>
 ? trace_buffer_lock_reserve+0x2a/0x60
 __fortify_panic+0xd/0xf
 __timerlat_dump_stack.cold+0xd/0xd
 timerlat_dump_stack.part.0+0x47/0x80
 timerlat_fd_read+0x36d/0x390
 vfs_read+0xe2/0x390
 ? syscall_exit_to_user_mode+0x1d5/0x210
 ksys_read+0x73/0xe0
 do_syscall_64+0x7b/0x160
 ? exc_page_fault+0x7e/0x1a0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

__timerlat_dump_stack() constructs the ftrace stack entry like this:

struct stack_entry *entry;
...
memcpy(&entry->caller, fstack->calls, size);
entry->size = fstack->nr_entries;

Since commit e7186af7fb26 ("tracing: Add back FORTIFY_SOURCE logic to
kernel_stack event structure"), struct stack_entry marks its caller
field with __counted_by(size). At the time of the memcpy, entry->size
contains garbage from the ringbuffer, which under some circumstances is
zero, triggering a kernel panic by buffer overflow.

Populate the size field before the memcpy so that the out-of-bounds
check knows the correct size. This is analogous to
__ftrace_trace_stack().

Cc: stable@vger.kernel.org
Cc: John Kacur <jkacur@redhat.com>
Cc: Luis Goncalves <lgoncalv@redhat.com>
Cc: Attila Fazekas <afazekas@redhat.com>
Link: https://lore.kernel.org/20250716143601.7313-1-tglozar@redhat.com
Fixes: e7186af7fb26 ("tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure")
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
7 weeks agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 18 Jul 2025 19:38:34 +0000 (12:38 -0700)] 
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - Fix use of u64_replace_bits() in adjusting the guest's view of
     MDCR_EL2.HPMN

  RISC-V:

   - Fix an issue related to timer cleanup when exiting to user-space

   - Fix a race-condition in updating interrupts enabled for the guest
     when IMSIC is hardware-virtualized

  x86:

   - Reject KVM_SET_TSC_KHZ for guests with a protected TSC (currently
     only TDX)

   - Ensure struct kvm_tdx_capabilities fields that are not explicitly
     set by KVM are zeroed

  Documentation:

   - Explain how KVM contributions should be made testable

   - Fix a formatting goof in the TDX documentation"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: TDX: Don't report base TDVMCALLs
  KVM: VMX: Ensure unused kvm_tdx_capabilities fields are zeroed out
  KVM: Documentation: document how KVM is tested
  KVM: Documentation: minimal updates to review-checklist.rst
  KVM: x86: Reject KVM_SET_TSC_KHZ vCPU ioctl for TSC protected guest
  RISC-V: KVM: Move HGEI[E|P] CSR access to IMSIC virtualization
  RISC-V: KVM: Disable vstimecmp before exiting to user-space
  Documentation: KVM: Fix unexpected unindent warning
  KVM: arm64: Fix enforcement of upper bound on MDCR_EL2.HPMN

7 weeks agoMerge tag 'io_uring-6.16-20250718' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 18 Jul 2025 19:21:26 +0000 (12:21 -0700)] 
Merge tag 'io_uring-6.16-20250718' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - dmabug offset fix for zcrx

 - Fix for the POLLERR connect work around handling

* tag 'io_uring-6.16-20250718' of git://git.kernel.dk/linux:
  io_uring/poll: fix POLLERR handling
  io_uring/zcrx: disallow user selected dmabuf offset and size

7 weeks agoMerge tag 'block-6.16-20250718' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 18 Jul 2025 19:16:13 +0000 (12:16 -0700)] 
Merge tag 'block-6.16-20250718' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - NVMe changes via Christoph:
     - revert the cross-controller atomic write size validation
       that caused regressions (Christoph Hellwig)
     - fix endianness of command word printout in
       nvme_log_err_passthru() (John Garry)
     - fix callback lock for TLS handshake (Maurizio Lombardi)
     - fix misaccounting of nvme-mpath inflight I/O (Yu Kuai)
     - fix inconsistent RCU list manipulation in
       nvme_ns_add_to_ctrl_list() (Zheng Qixing)

 - Fix for a kobject leak in queue unregistration

 - Fix for loop async file write start/end handling

* tag 'block-6.16-20250718' of git://git.kernel.dk/linux:
  loop: use kiocb helpers to fix lockdep warning
  nvmet-tcp: fix callback lock for TLS handshake
  nvme: fix misaccounting of nvme-mpath inflight I/O
  nvme: revert the cross-controller atomic write size validation
  nvme: fix endianness of command word prints in nvme_log_err_passthru()
  nvme: fix inconsistent RCU list manipulation in nvme_ns_add_to_ctrl_list()
  block: fix kobject leak in blk_unregister_queue

7 weeks agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after rc6
Alexei Starovoitov [Fri, 18 Jul 2025 19:14:51 +0000 (12:14 -0700)] 
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after rc6

Cross-merge BPF and other fixes after downstream PR.

No conflicts.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
7 weeks agoMerge tag 'pmdomain-v6.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh...
Linus Torvalds [Fri, 18 Jul 2025 19:02:17 +0000 (12:02 -0700)] 
Merge tag 'pmdomain-v6.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain / cpuidle-psci fixes from Ulf Hansson:
 "pmdomain core:

   - Respect CPU latency QoS limit in the genpd governor for CPUs

  cpuidle-psci:

   - Fix cpuhotplug support for PREEMPT_RT"

* tag 'pmdomain-v6.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
  cpuidle: psci: Fix cpuhotplug routine with PREEMPT_RT=y
  pmdomain: governor: Consider CPU latency tolerance from pm_domain_cpu_gov

7 weeks agoMerge tag 'gpio-fixes-for-v6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 18 Jul 2025 18:57:41 +0000 (11:57 -0700)] 
Merge tag 'gpio-fixes-for-v6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix the devres release callback for devm_gpiod_put_array()

 - add an ACPI quirk for Acer Nitro V15 suspend & wakeup

* tag 'gpio-fixes-for-v6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpiolib: devres: release GPIOs in devm_gpiod_put_array()
  gpiolib: acpi: Add a quirk for Acer Nitro V15

7 weeks agoMerge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Linus Torvalds [Fri, 18 Jul 2025 18:46:26 +0000 (11:46 -0700)] 
Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Pull bpf fixes from Alexei Starovoitov:

 - Fix handling of BPF arena relocations (Andrii Nakryiko)

 - Fix race in bpf_arch_text_poke() on s390 (Ilya Leoshkevich)

 - Fix use of virt_to_phys() on arm64 when mmapping BTF (Lorenz Bauer)

 - Reject %p% format string in bprintf-like BPF helpers (Paul Chaignon)

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  libbpf: Fix handling of BPF arena relocations
  btf: Fix virt_to_phys() on arm64 when mmapping BTF
  selftests/bpf: Stress test attaching a BPF prog to another BPF prog
  s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL again
  selftests/bpf: Add negative test cases for snprintf
  bpf: Reject %p% format string in bprintf-like helpers

7 weeks agoio_uring/cmd: remove struct io_uring_cmd_data
Caleb Sander Mateos [Tue, 8 Jul 2025 20:22:12 +0000 (14:22 -0600)] 
io_uring/cmd: remove struct io_uring_cmd_data

There are no more users of struct io_uring_cmd_data and its op_data
field. Remove it to shave 8 bytes from struct io_async_cmd and eliminate
a store and load for every uring_cmd.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Acked-by: David Sterba <dsterba@suse.com>
Link: https://lore.kernel.org/r/20250708202212.2851548-5-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
7 weeks agobtrfs/ioctl: store btrfs_uring_encoded_data in io_btrfs_cmd
Caleb Sander Mateos [Tue, 8 Jul 2025 20:22:11 +0000 (14:22 -0600)] 
btrfs/ioctl: store btrfs_uring_encoded_data in io_btrfs_cmd

btrfs is the only user of struct io_uring_cmd_data and its op_data
field. Switch its ->uring_cmd() implementations to store the struct
btrfs_uring_encoded_data * in the struct io_btrfs_cmd, overlayed with
io_uring_cmd's pdu field. This avoids having to touch another cache line
to access the struct btrfs_uring_encoded_data *, and allows op_data and
struct io_uring_cmd_data to be removed.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Acked-by: David Sterba <dsterba@suse.com>
Link: https://lore.kernel.org/r/20250708202212.2851548-4-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
7 weeks agoio_uring/cmd: introduce IORING_URING_CMD_REISSUE flag
Caleb Sander Mateos [Tue, 8 Jul 2025 20:22:10 +0000 (14:22 -0600)] 
io_uring/cmd: introduce IORING_URING_CMD_REISSUE flag

Add a flag IORING_URING_CMD_REISSUE that ->uring_cmd() implementations
can use to tell whether this is the first or subsequent issue of the
uring_cmd. This will allow ->uring_cmd() implementations to store
information in the io_uring_cmd's pdu across issues.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Acked-by: David Sterba <dsterba@suse.com>
Link: https://lore.kernel.org/r/20250708202212.2851548-3-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
7 weeks agoMerge tag 'drm-fixes-2025-07-18-1' of https://gitlab.freedesktop.org/drm/kernel
Linus Torvalds [Fri, 18 Jul 2025 18:27:46 +0000 (11:27 -0700)] 
Merge tag 'drm-fixes-2025-07-18-1' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Seems like a quiet enough week, xe/amdgpu being the usual suspects,
  then mediatek with a few fixes, and otherwise just misc other bits.

  dp:
   - aux dpcd address fix

  xe:
   - SR-IOV fixes for GT reset and TLB invalidation
   - Fix memory copy direction during migration
   - Fix alignment check on migration
   - Fix MOCS and page fault init order to correctly account
     for topology

  amdgpu:
   - Fix a DC memory leak
   - DCN 4.0.1 degamma LUT fix
   - Fix reset counter handling for soft recovery
   - GC 8 fix

  radeon:
   - Drop console locks when suspending/resuming

  nouveau:
   - ioctl validation fix

  panfrost:
   - scheduler bug fix

  mediatek:
   - Add wait_event_timeout when disabling plane
   - only announce AFBC if really supported
   - mtk_dpi: Reorder output formats on MT8195/88"

* tag 'drm-fixes-2025-07-18-1' of https://gitlab.freedesktop.org/drm/kernel:
  drm/mediatek: mtk_dpi: Reorder output formats on MT8195/88
  drm/mediatek: only announce AFBC if really supported
  drm/mediatek: Add wait_event_timeout when disabling plane
  drm/xe/pf: Resend PF provisioning after GT reset
  drm/xe/pf: Prepare to stop SR-IOV support prior GT reset
  drm/xe/migrate: Fix alignment check
  drm/xe: Move page fault init after topology init
  drm/xe/mocs: Initialize MOCS index early
  drm/xe/migrate: fix copy direction in access_memory
  drm/xe: Dont skip TLB invalidations on VF
  drm/amdgpu/gfx8: reset compute ring wptr on the GPU on resume
  drm/amdgpu: Increase reset counter only on success
  drm/radeon: Do not hold console lock during resume
  drm/radeon: Do not hold console lock while suspending clients
  drm/amd/display: Disable CRTC degamma LUT for DCN401
  drm/amd/display: Free memory allocation
  drm/dp: Change AUX DPCD probe address from LANE0_1_STATUS to TRAINING_PATTERN_SET
  drm/panfrost: Fix scheduler workqueue bug
  drm/nouveau: check ioctl command codes better

7 weeks agoMerge tag 'sound-6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 18 Jul 2025 18:15:55 +0000 (11:15 -0700)] 
Merge tag 'sound-6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes again. The only change in the core is
  about the handling of ALSA compress-offload ioctl numbers for avoiding
  potential abusing the API (if any).

  Other than that, all changes are device-specific small fixes and
  quirks, which should be safe to apply"

* tag 'sound-6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: amd: yc: Add DMI quirk for HP Laptop 17 cp-2033dx
  ASoC: Intel: soc-acpi: add support for HP Omen14 ARL
  ASoC: amd: yc: Add DMI entries to support HP 15-fb1xxx
  ALSA: hda/realtek: Add quirk for ASUS ROG Strix G712LWS
  ALSA: hda/cs35l56: Workaround bad dev-index on Lenovo Yoga Book 9i GenX
  ALSA: hda/realtek: Support mute LED for Yoga with ALC287
  ASoC: Intel: fix SND_SOC_SOF dependencies
  ASoC: rt5660: Fix the dmic data source from GPIO2
  ALSA: hda/realtek - Fix mute LED for HP Victus 16-r0xxx
  ALSA: compress_offload: tighten ioctl command number checks
  ASoC: Intel: avs: Fix NULL ptr deref on rmmod
  ASoC: amd: yc: add DMI quirk for ASUS M6501RM

7 weeks agoMerge tag 'soundwire-6.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 18 Jul 2025 18:04:39 +0000 (11:04 -0700)] 
Merge tag 'soundwire-6.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

Pull soundwire fixes from Vinod Koul:
 "This contains a couple of amd driver fixes to handle alerts when the
  link is down and the cmd status register clears up.

  Also a revert of the qualcomm driver channel map support due to a
  regression"

* tag 'soundwire-6.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: Revert "soundwire: qcom: Add set_channel_map api support"
  soundwire: amd: fix for clearing command status register
  soundwire: amd: fix for handling slave alerts after link is down

7 weeks agoMerge tag 'dmaengine-fix-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul...
Linus Torvalds [Fri, 18 Jul 2025 17:59:26 +0000 (10:59 -0700)] 
Merge tag 'dmaengine-fix-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

Pull dmaengine fixes from Vinod Koul:

 - Mediatek flag reuse error fix

 - Array overbound fix for nbpfaxi

 - Frame size warning in driver probe

* tag 'dmaengine-fix-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
  dma: dw-edma: Fix build warning in dw_edma_pcie_probe()
  dmaengine: nbpfaxi: Fix memory corruption in probe()
  dmaengine: mediatek: Fix a flag reuse error in mtk_cqdma_tx_status()

7 weeks agoMerge tag 'phy-fix-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Linus Torvalds [Fri, 18 Jul 2025 17:54:23 +0000 (10:54 -0700)] 
Merge tag 'phy-fix-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy

Pull phy fixes from Vinod Koul:
 "Core:

   - use per-PHY lockdep keys, in order to fix a phy using internal phys

 Drivers:

   - tegra:
       - fixes for unbalanced regulator
       - decouple pad calibration fix
       - disable periodic updates

   - qualcomm:
       - error code fix for driver probe"

* tag 'phy-fix-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
  phy: qcom: fix error code in snps_eusb2_hsphy_probe()
  phy: use per-PHY lockdep keys
  phy: tegra: xusb: Fix unbalanced regulator disable in UTMI PHY mode
  phy: tegra: xusb: Disable periodic tracking on Tegra234
  phy: tegra: xusb: Decouple CYA_TRK_CODE_UPDATE_ON_IDLE from trk_hw_mode

7 weeks agoMerge tag 'mmc-v6.16-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Fri, 18 Jul 2025 17:23:03 +0000 (10:23 -0700)] 
Merge tag 'mmc-v6.16-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC host:

   - bcm2835: Fix dma_unmap_sg() nents value

   - sdhci_am654: Add workaround for maximum HW timeout

   - sdhci-pci: Disable broken CQE Intel GLK-based Positivo models

  MEMSTICK:

   - Zero initialize id_reg in h_memstick_read_dev_id()"

* tag 'mmc-v6.16-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  memstick: core: Zero initialize id_reg in h_memstick_read_dev_id()
  mmc: bcm2835: Fix dma_unmap_sg() nents value
  mmc: sdhci_am654: Workaround for Errata i2312
  mmc: sdhci-pci: Quirk for broken command queuing on Intel GLK-based Positivo models

7 weeks agoFix SMB311 posix special file creation to servers which do not advertise reparse...
Steve French [Tue, 15 Jul 2025 03:16:19 +0000 (22:16 -0500)] 
Fix SMB311 posix special file creation to servers which do not advertise reparse support

Some servers (including Samba), support the SMB3.1.1 POSIX Extensions (which use reparse
points for handling special files) but do not properly advertise file system attribute
FILE_SUPPORTS_REPARSE_POINTS.  Although we don't check for this attribute flag when
querying special file information, we do check it when creating special files which
causes them to fail unnecessarily.   If we have negotiated SMB3.1.1 POSIX Extensions
with the server we can expect the server to support creating special files via
reparse points, and even if the server fails the operation due to really forbidding
creating special files, then it should be no problem and is more likely to return a
more accurate rc in any case (e.g. EACCES instead of EOPNOTSUPP).

Allow creating special files as long as the server supports either reparse points
or the SMB3.1.1 POSIX Extensions (note that if the "sfu" mount option is specified
it uses a different way of storing special files that does not rely on reparse points).

Cc: <stable@vger.kernel.org>
Fixes: 6c06be908ca19 ("cifs: Check if server supports reparse points before using them")
Acked-by: Ralph Boehme <slow@samba.org>
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
7 weeks agoMerge tag 'xfs-fixes-6.16-rc7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Linus Torvalds [Fri, 18 Jul 2025 17:09:48 +0000 (10:09 -0700)] 
Merge tag 'xfs-fixes-6.16-rc7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Carlos Maiolino:
 "This contains mostly code clean up, refactoring and comments
  modification.

  The most important patch in this series is the last one that removes
  an unnecessary data structure allocation of xfs busy extents which
  might lead to a memory leak on the zoned allocator code"

* tag 'xfs-fixes-6.16-rc7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: don't allocate the xfs_extent_busy structure for zoned RTGs
  xfs: remove the bt_bdev_file buftarg field
  xfs: rename the bt_bdev_* buftarg fields
  xfs: refactor xfs_calc_atomic_write_unit_max
  xfs: add a xfs_group_type_buftarg helper
  xfs: remove the call to sync_blockdev in xfs_configure_buftarg
  xfs: clean up the initial read logic in xfs_readsb
  xfs: replace strncpy with memcpy in xattr listing

7 weeks agohwmon: (pmbus/ucd9000) Fix error in ucd9000_gpio_set
Torben Nielsen [Fri, 18 Jul 2025 09:36:45 +0000 (11:36 +0200)] 
hwmon: (pmbus/ucd9000) Fix error in ucd9000_gpio_set

The GPIO output functionality does not work as intended.

The ucd9000_gpio_set function should set UCD9000_GPIO_CONFIG_OUT_VALUE
(bit 2) in order to change the output value of the selected GPIO.
Instead UCD9000_GPIO_CONFIG_STATUS (bit 3) is set, but this is a
read-only value. This patch fixes the mistake and provides the intended
functionality of the GPIOs.

See UCD90xxx Sequencer and System Health Controller PMBus Command SLVU352C
section 10.43 for reference.

Signed-off-by: Torben Nielsen <t8927095@gmail.com>
Link: https://lore.kernel.org/r/20250718093644.356085-2-t8927095@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
7 weeks agohwmon: (ina238) Report energy in microjoules
Jonas Rebmann [Tue, 15 Jul 2025 13:02:41 +0000 (15:02 +0200)] 
hwmon: (ina238) Report energy in microjoules

The hwmon sysfs interface specifies that energy values should be
reported in microjoules. This is also what tools such as lmsensors
expect, reporting wrong values otherwise.

Adjust the driver to scale the output accordingly and adjust ina238
driver documentation.

Fixes: 6daaf15a1173 ("hwmon: (ina238) Add support for SQ52206")
Signed-off-by: Jonas Rebmann <jre@pengutronix.de>
Link: https://lore.kernel.org/r/20250715-hwmon-ina238-microjoules-v1-1-9df678568a41@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
7 weeks agoMerge tag 'bcachefs-2025-07-17' of git://evilpiepirate.org/bcachefs
Linus Torvalds [Fri, 18 Jul 2025 16:19:57 +0000 (09:19 -0700)] 
Merge tag 'bcachefs-2025-07-17' of git://evilpiepirate.org/bcachefs

Pull bcachefs fixes from Kent Overstreet:

 - two small syzbot fixes

 - fix discard behaviour regression; we no longer wait until the number
   of buckets needing discard is greater than the number of buckets
   available before kicking off discards

 - fix a fast_list leak when async object debugging is enabled

 - fixes for casefolding when CONFIG_UTF8 != y

* tag 'bcachefs-2025-07-17' of git://evilpiepirate.org/bcachefs:
  bcachefs: Fix bch2_maybe_casefold() when CONFIG_UTF8=n
  bcachefs: Fix build when CONFIG_UNICODE=n
  bcachefs: Fix reference to invalid bucket in copygc
  bcachefs: Don't build aux search tree when still repairing node
  bcachefs: Tweak threshold for allocator triggering discards
  bcachefs: Fix triggering of discard by the journal path
  bcachefs: io_read: remove from async obj list in rbio_done()

7 weeks agoHID: apple: validate feature-report field count to prevent NULL pointer dereference
Qasim Ijaz [Sun, 13 Jul 2025 23:30:08 +0000 (00:30 +0100)] 
HID: apple: validate feature-report field count to prevent NULL pointer dereference

A malicious HID device with quirk APPLE_MAGIC_BACKLIGHT can trigger a NULL
pointer dereference whilst the power feature-report is toggled and sent to
the device in apple_magic_backlight_report_set(). The power feature-report
is expected to have two data fields, but if the descriptor declares one
field then accessing field[1] and dereferencing it in
apple_magic_backlight_report_set() becomes invalid
since field[1] will be NULL.

An example of a minimal descriptor which can cause the crash is something
like the following where the report with ID 3 (power report) only
references a single 1-byte field. When hid core parses the descriptor it
will encounter the final feature tag, allocate a hid_report (all members
of field[] will be zeroed out), create field structure and populate it,
increasing the maxfield to 1. The subsequent field[1] access and
dereference causes the crash.

  Usage Page (Vendor Defined 0xFF00)
  Usage (0x0F)
  Collection (Application)
    Report ID (1)
    Usage (0x01)
    Logical Minimum (0)
    Logical Maximum (255)
    Report Size (8)
    Report Count (1)
    Feature (Data,Var,Abs)

    Usage (0x02)
    Logical Maximum (32767)
    Report Size (16)
    Report Count (1)
    Feature (Data,Var,Abs)

    Report ID (3)
    Usage (0x03)
    Logical Minimum (0)
    Logical Maximum (1)
    Report Size (8)
    Report Count (1)
    Feature (Data,Var,Abs)
  End Collection

Here we see the KASAN splat when the kernel dereferences the
NULL pointer and crashes:

  [   15.164723] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN NOPTI
  [   15.165691] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
  [   15.165691] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.15.0 #31 PREEMPT(voluntary)
  [   15.165691] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
  [   15.165691] RIP: 0010:apple_magic_backlight_report_set+0xbf/0x210
  [   15.165691] Call Trace:
  [   15.165691]  <TASK>
  [   15.165691]  apple_probe+0x571/0xa20
  [   15.165691]  hid_device_probe+0x2e2/0x6f0
  [   15.165691]  really_probe+0x1ca/0x5c0
  [   15.165691]  __driver_probe_device+0x24f/0x310
  [   15.165691]  driver_probe_device+0x4a/0xd0
  [   15.165691]  __device_attach_driver+0x169/0x220
  [   15.165691]  bus_for_each_drv+0x118/0x1b0
  [   15.165691]  __device_attach+0x1d5/0x380
  [   15.165691]  device_initial_probe+0x12/0x20
  [   15.165691]  bus_probe_device+0x13d/0x180
  [   15.165691]  device_add+0xd87/0x1510
  [...]

To fix this issue we should validate the number of fields that the
backlight and power reports have and if they do not have the required
number of fields then bail.

Fixes: 394ba612f941 ("HID: apple: Add support for magic keyboard backlight on T2 Macs")
Cc: stable@vger.kernel.org
Signed-off-by: Qasim Ijaz <qasdev00@gmail.com>
Reviewed-by: Orlando Chamberlain <orlandoch.dev@gmail.com>
Tested-by: Aditya Garg <gargaditya08@live.com>
Link: https://patch.msgid.link/20250713233008.15131-1-qasdev00@gmail.com
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
7 weeks agoixgbevf: remove unused fields from struct ixgbevf_adapter
Yuto Ohnuki [Thu, 17 Jul 2025 08:46:09 +0000 (09:46 +0100)] 
ixgbevf: remove unused fields from struct ixgbevf_adapter

Remove hw_rx_no_dma_resources and eitr_param fields from struct
ixgbevf_adapter since these fields are never referenced in the driver.

Note that the interrupt throttle rate is controlled by the
rx_itr_setting and tx_itr_setting variables.

This change simplifies the ixgbevf driver by removing unused fields,
which improves maintainability.

Signed-off-by: Yuto Ohnuki <ytohnuki@amazon.com>
Reviewed-by: Dawid Osuchowski <dawid.osuchowski@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
7 weeks agoigbvf: remove unused fields from struct igbvf_adapter
Yuto Ohnuki [Mon, 7 Jul 2025 18:01:17 +0000 (19:01 +0100)] 
igbvf: remove unused fields from struct igbvf_adapter

Remove following unused fields from struct igbvf_adapter that are never
referenced in the driver.

- blink_timer
- eeprom_wol
- fc_autoneg
- int_mode
- led_status
- mng_vlan_id
- polling_interval
- rx_dma_failed
- test_icr
- test_rx_ring
- test_tx_ring
- tx_dma_failed
- tx_fifo_head
- tx_fifo_size
- tx_head_addr

Also removed the following fields from struct igbvf_adapter since they
are never read or used after initialization by igbvf_probe() and igbvf_sw_init().

- bd_number
- rx_abs_int_delay
- tx_abs_int_delay
- rx_int_delay
- tx_int_delay

This changes simplify the igbvf driver by removing unused fields, which
improves maintenability.

Tested-by: Kohei Enju <enjuk@amazon.com>
Signed-off-by: Yuto Ohnuki <ytohnuki@amazon.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>