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1,403,262 commits

Author SHA1 Message Date
Andy Yan
2b036b13c8 dt-bindings: display: rockchip: Add schema for RK3588 DPTX Controller
The Rockchip RK3588 SoC integrates the Synopsys DesignWare DPTX
controller. And this DPTX controller need share a USBDP PHY with
the USB 3.0 OTG controller during operation.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250822063959.692098-2-andyshrk@163.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-08-28 15:49:51 +03:00
Peter Robinson
6d54d93506 arm64: dts: rockchip: Further describe the WiFi for the Pinebook Pro
Update the wake-up pin and associated interupt details for the
Pinebook Pro WiFi module.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Link: https://lore.kernel.org/r/20250827143040.1644867-1-pbrobinson@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-08-28 14:42:10 +02:00
Anton Kirilov
dfdda0881b arm64: dts: rockchip: Enable the NPU on NanoPi R6C/R6S
Enable the NPU on FriendlyElec NanoPi R6C/R6S boards.

Signed-off-by: Anton Kirilov <anton.kirilov@arm.com>
Link: https://lore.kernel.org/r/20250827142210.2221606-1-anton.kirilov@arm.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-08-28 14:42:03 +02:00
Paolo Abeni
84482586b2 Merge branch 'add-si3474-pse-controller-driver'
Piotr Kubik says:

====================
Add Si3474 PSE controller driver

From: Piotr Kubik <piotr.kubik@adtran.com>

These patch series provide support for Skyworks Si3474 I2C Power
Sourcing Equipment controller.

Based on the TPS23881 driver code.

Supported features of Si3474:
- get port status,
- get port power,
- get port voltage,
- enable/disable port power

Signed-off-by: Piotr Kubik <piotr.kubik@adtran.com>
====================

Link: https://patch.msgid.link/6af537dc-8a52-4710-8a18-dcfbb911cf23@adtran.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-28 14:42:02 +02:00
Piotr Kubik
a2317231df net: pse-pd: Add Si3474 PSE controller driver
Add a driver for the Skyworks Si3474 I2C Power Sourcing Equipment
controller.

Driver supports basic features of Si3474 IC:
- get port status,
- get port power,
- get port voltage,
- enable/disable port power.

Only 4p configurations are supported at this moment.

Signed-off-by: Piotr Kubik <piotr.kubik@adtran.com>
Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/9b72c8cd-c8d3-4053-9c80-671b9481d166@adtran.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-28 14:41:59 +02:00
Piotr Kubik
7cb4d28e11 dt-bindings: net: pse-pd: Add bindings for Si3474 PSE controller
Add the Si3474 I2C Power Sourcing Equipment controller device tree
bindings documentation.

Signed-off-by: Piotr Kubik <piotr.kubik@adtran.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/71a67c6f-6fce-49c7-96ec-554602dbd4f1@adtran.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-28 14:41:59 +02:00
Alexander Sverdlin
fd779eac2d mtd: nand: raw: atmel: Respect tAR, tCLR in read setup timing
Having setup time 0 violates tAR, tCLR of some chips, for instance
TOSHIBA TC58NVG2S3ETAI0 cannot be detected successfully (first ID byte
being read duplicated, i.e. 98 98 dc 90 15 76 14 03 instead of
98 dc 90 15 76 ...).

Atmel Application Notes postulated 1 cycle NRD_SETUP without explanation
[1], but it looks more appropriate to just calculate setup time properly.

[1] Link: https://ww1.microchip.com/downloads/aemDocuments/documents/MPU32/ApplicationNotes/ApplicationNotes/doc6255.pdf

Cc: stable@vger.kernel.org
Fixes: f9ce2eddf1 ("mtd: nand: atmel: Add ->setup_data_interface() hooks")
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Tested-by: Alexander Dahl <ada@thorsis.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-08-28 14:28:13 +02:00
Tianling Shen
5f284dc15c mtd: spinand: add support for FudanMicro FM25S01A
Add support for FudanMicro FM25S01A SPI NAND.
Datasheet: http://eng.fmsh.com/nvm/FM25S01A_ds_eng.pdf

Signed-off-by: Tianling Shen <cnsztl@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-08-28 14:27:26 +02:00
Teng Wu
49b9254217 mtd: spinand: gigadevice: Add continuous read support
GD5F1GM9 supports a high-speed Continuous Read (CR) mode which allows
the entire memory array to be read out by a single read command
without re-issuing the 13h “Page Read to Cache” command for every page.

Datasheet summary
Feature register B0[3] (NR bit)
1 = Normal Read (default)
0 = Continuous Read (CR)

ECC status register 7Ch
Normal read: bits [3:0] → ECC status of last page
Continuous read: bits [7:4] → accumulated max bit-flips over the
whole sequential read operation.

Datasheet:
https://github.com/WT-886/DATASHEET/blob/main/GD5F1GM9-v1.0.pdf

Signed-off-by: Teng Wu <gigadevice2025@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-08-28 14:27:18 +02:00
Christophe Kerello
811c0da454 mtd: rawnand: stm32_fmc2: fix ECC overwrite
In case OOB write is requested during a data write, ECC is currently
lost. Avoid this issue by only writing in the free spare area.
This issue has been seen with a YAFFS2 file system.

Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Cc: stable@vger.kernel.org
Fixes: 2cd457f328 ("mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-08-28 14:26:51 +02:00
Christophe Kerello
513c40e59d mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer
Avoid below overlapping mappings by using a contiguous
non-cacheable buffer.

[    4.077708] DMA-API: stm32_fmc2_nfc 48810000.nand-controller: cacheline tracking EEXIST,
overlapping mappings aren't supported
[    4.089103] WARNING: CPU: 1 PID: 44 at kernel/dma/debug.c:568 add_dma_entry+0x23c/0x300
[    4.097071] Modules linked in:
[    4.100101] CPU: 1 PID: 44 Comm: kworker/u4:2 Not tainted 6.1.82 #1
[    4.106346] Hardware name: STMicroelectronics STM32MP257F VALID1 SNOR / MB1704 (LPDDR4 Power discrete) + MB1703 + MB1708 (SNOR MB1730) (DT)
[    4.118824] Workqueue: events_unbound deferred_probe_work_func
[    4.124674] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    4.131624] pc : add_dma_entry+0x23c/0x300
[    4.135658] lr : add_dma_entry+0x23c/0x300
[    4.139792] sp : ffff800009dbb490
[    4.143016] x29: ffff800009dbb4a0 x28: 0000000004008022 x27: ffff8000098a6000
[    4.150174] x26: 0000000000000000 x25: ffff8000099e7000 x24: ffff8000099e7de8
[    4.157231] x23: 00000000ffffffff x22: 0000000000000000 x21: ffff8000098a6a20
[    4.164388] x20: ffff000080964180 x19: ffff800009819ba0 x18: 0000000000000006
[    4.171545] x17: 6361727420656e69 x16: 6c6568636163203a x15: 72656c6c6f72746e
[    4.178602] x14: 6f632d646e616e2e x13: ffff800009832f58 x12: 00000000000004ec
[    4.185759] x11: 00000000000001a4 x10: ffff80000988af58 x9 : ffff800009832f58
[    4.192916] x8 : 00000000ffffefff x7 : ffff80000988af58 x6 : 80000000fffff000
[    4.199972] x5 : 000000000000bff4 x4 : 0000000000000000 x3 : 0000000000000000
[    4.207128] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000812d2c40
[    4.214185] Call trace:
[    4.216605]  add_dma_entry+0x23c/0x300
[    4.220338]  debug_dma_map_sg+0x198/0x350
[    4.224373]  __dma_map_sg_attrs+0xa0/0x110
[    4.228411]  dma_map_sg_attrs+0x10/0x2c
[    4.232247]  stm32_fmc2_nfc_xfer.isra.0+0x1c8/0x3fc
[    4.237088]  stm32_fmc2_nfc_seq_read_page+0xc8/0x174
[    4.242127]  nand_read_oob+0x1d4/0x8e0
[    4.245861]  mtd_read_oob_std+0x58/0x84
[    4.249596]  mtd_read_oob+0x90/0x150
[    4.253231]  mtd_read+0x68/0xac

Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Cc: stable@vger.kernel.org
Fixes: 2cd457f328 ("mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-08-28 14:26:28 +02:00
Gabor Juhos
5b5dc7db5a mtd: nand: qpic_common: use {cmd,data}_sgl_nitems for sg_init_table()
Since commit ddaad4ad77 ("mtd: nand: qpic_common: prevent out of
bounds access of BAM arrays"), the {cmd,data}_sgl_nitems members in
the 'bam_transaction' structure are containing the number of elements
in the cmd/data scatter-gather lists.

Change the qcom_clear_bam_transaction() function to use these numbers
while reinitializing the sg lists instead of recomputing the number of
elements to make it less error prone.

Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Acked-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-08-28 14:23:20 +02:00
Gabor Juhos
3ea299d3dc mtd: nand: qpic-common: remove a bunch of unused defines
A bunch of definitions in the 'nand-qpic-common.h' header became
unused after the conversion of the 'qcom_nandc' and 'spi-qpic-snand'
drivers to use the FIELD_PREP() macro, so remove those.

No functional changes.

Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-08-28 14:23:20 +02:00
Christophe JAILLET
1eae113dd5 mtd: rawnand: nuvoton: Fix an error handling path in ma35_nand_chips_init()
If a ma35_nand_chip_init() call fails, then a reference to 'nand_np' still
needs to be released.

Use for_each_child_of_node_scoped() to fix the issue.

Fixes: 5abb5d414d ("mtd: rawnand: nuvoton: add new driver for the Nuvoton MA35 SoC")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-08-28 14:23:05 +02:00
Geert Uytterhoeven
f544bf03a7 mtd: MTD_INTEL_DG should depend on DRM_I915 or DRM_XE
Intel Discrete Graphics non-volatile memory is only present on Intel
discrete graphics devices, and its auxiliary device is instantiated by
the Intel i915 and Xe2 DRM drivers.  Hence add dependencies on DRM_I915
and DRM_XE, to prevent asking the user about this driver when
configuring a kernel without Intel graphics support.

Fixes: ceb5ab3cb6 ("mtd: add driver for intel graphics non-volatile memory device")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-08-28 14:22:48 +02:00
Christoph Hellwig
851c4c96db xfs: implement XFS_IOC_DIOINFO in terms of vfs_getattr
Use the direct I/O alignment reporting from ->getattr instead of
reimplementing it.  This exposes the relaxation of the memory
alignment in the XFS_IOC_DIOINFO info and ensure the information will
stay in sync.  Note that randholes.c in xfstests has a bug where it
incorrectly fails when the required memory alignment is smaller than the
pointer size.  Round up the reported value as there is a fair chance that
this code got copied into various applications.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
2025-08-28 14:20:03 +02:00
Andrey Albershteyn
0239bd9fa4 xfs: allow setting file attributes on special files
XFS does't have file attributes manipulation ioctls for special
files. Changing or reading file attributes is rejected for them in
xfs_fileattr_*et().

In XFS, this is necessary to work for project quota directories.
When project is set up, xfs_quota opens and calls FS_IOC_SETFSXATTR on
every inode in the directory. However, special files are skipped due to
open() returning a special inode for them. So, they don't even get to
this check.

The recently added file_getattr/file_setattr will call xfs_fileattr_*et,
on special files. This patch allows reading/changing file attributes on
special files.

Signed-off-by: Andrey Albershteyn <aalbersh@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
2025-08-28 14:19:58 +02:00
Andrey Albershteyn
8a221004fe xfs: add .fileattr_set and fileattr_get callbacks for symlinks
As there are now file_getattr() and file_setattr(), xfs_quota will
call them on special files. These new syscalls call ->fileattr_get/set.

Symlink inodes don't have callbacks to set file attributes. This
patch adds them. The attribute values combinations are checked in
fileattr_set_prepare().

Signed-off-by: Andrey Albershteyn <aalbersh@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
2025-08-28 14:19:52 +02:00
Andrey Albershteyn
8d2f9f5c64 xfs: allow renames of project-less inodes
Special file inodes cannot have project ID set from userspace and
are skipped during initial project setup. Those inodes are left
project-less in the project directory. New inodes created after
project initialization do have an ID. Creating hard links or
renaming those project-less inodes then fails on different ID check.

In commit e23d7e82b7 ("xfs: allow cross-linking special files
without project quota"), we relaxed the project id checks to
allow hardlinking special files with differing project ids since the
projid cannot be changed. Apply the same workaround for renaming
operations.

Signed-off-by: Andrey Albershteyn <aalbersh@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
2025-08-28 14:19:44 +02:00
Peter Robinson
497aa80ec7 arm64: dts: rockchip: Add vcc-supply to SPI flash on Pinephone Pro
As documented in the PinephonePro-Schematic-V1.0-20211127.pdf,
page 11, the SPI Flash's VCC pin is connected to VCC_1V8 power
source. This fixes the following warning:

  spi-nor spi1.0: supply vcc not found, using dummy regulator

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Ondřej Jirman <megi@xff.cz>
Link: https://lore.kernel.org/r/20250827143501.1646163-1-pbrobinson@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-08-28 14:15:00 +02:00
Johannes Berg
2c72c8d356 a few fixes, mainly of the cfg rework.
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Merge tag 'iwlwifi-fixes-2025-08-28' of https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

Miri Korenblit says:
====================
a few fixes, mainly of the cfg rework.
====================

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-08-28 14:03:32 +02:00
Suma Hegde
ee1cb9b0e6
platform/x86/amd/hsmp: Replace dev_err() with dev_info() for non-fatal errors
Failure in metric table initialization and hwmon registration are
non-fatal errors. Hence replace them with dev_info().

Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Link: https://lore.kernel.org/r/20250807114203.982860-1-suma.hegde@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-08-28 14:53:39 +03:00
Wolfram Sang
ba9eddc43f
platform/x86: portwell-ec: don't print superfluous errors
The watchdog core will handle error messages already.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Yen-Chi Huang <jesse.huang@portwell.com.tw>
Tested-by: Yen-Chi Huang <jesse.huang@portwell.com.tw>
Link: https://lore.kernel.org/r/20250813191416.6860-2-wsa+renesas@sang-engineering.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-08-28 14:53:37 +03:00
Qianfeng Rong
55df384148
platform/x86/intel/pmc: use kcalloc() instead of kzalloc()
Replace devm_kzalloc() with devm_kcalloc() in pmc_core_get_tgl_lpm_reqs().
As noted in the kernel documentation [1], open-coded multiplication in
allocator arguments is discouraged because it can lead to integer
overflow.

Using devm_kcalloc() provides built-in overflow protection, making the
memory allocation safer when calculating the allocation size compared
to explicit multiplication.

[1]: https://www.kernel.org/doc/html/next/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Acked-by: David E. Box <david.e.box@intel.com>
Link: https://lore.kernel.org/r/20250819135155.338380-1-rongqianfeng@vivo.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-08-28 14:53:35 +03:00
Srinivas Pandruvada
6d47b4f084
platform/x86/intel-uncore-freq: Fix warning in partitioned system
A partitioned system configured with only one package and one compute
die, warning will be generated for duplicate sysfs entry. This typically
occurs during the platform bring-up phase.

Partitioned systems expose dies, equivalent to TPMI compute domains,
through the CPUID. Each partitioned system must contains at least one
compute die per partition, resulting in a minimum of two dies per
package. Hence the function topology_max_dies_per_package() returns at
least two, and the condition "topology_max_dies_per_package() > 1"
prevents the creation of a root domain.

In this case topology_max_dies_per_package() will return 1 and root
domain will be created for partition 0 and a duplicate sysfs warning
for partition 1 as both partitions have same package ID.

To address this also check for non zero partition in addition to
topology_max_dies_per_package() > 1.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20250819211034.3776284-1-srinivas.pandruvada@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-08-28 14:53:34 +03:00
Xichao Zhao
faec01b1a4
platform/x86: x86-android-tablets: Remove the use of dev_err_probe()
The dev_err_probe() doesn't do anything when error is '-ENOMEM'.
Therefore, remove the useless call to dev_err_probe(), and just
return the value instead.

Signed-off-by: Xichao Zhao <zhao.xichao@vivo.com>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Link: https://lore.kernel.org/r/20250820085101.395377-1-zhao.xichao@vivo.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-08-28 14:53:32 +03:00
Gladyshev Ilya
98aadf8e49
platform/x86: Add WMI driver for Redmibook keyboard
This driver implements support for various Fn keys (like Cut) and Xiaomi
specific AI button.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Gladyshev Ilya <foxido@foxido.dev>
Link: https://lore.kernel.org/r/20250820174140.41410-1-foxido@foxido.dev
[ij: use BIT(8) instead of 0x00000100]
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-08-28 14:53:30 +03:00
Xi Pardee
1866c3b939
platform/x86/intel/pmc: Add Wildcat Lake support to intel_pmc_core
Add Wildcat Lake support to intel_pmc_core driver.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Link: https://lore.kernel.org/r/20250826183946.802684-2-xi.pardee@linux.intel.com
[ij: added #include <linux/bits.h> for BIT()]
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-08-28 14:53:29 +03:00
Xi Pardee
c138158e87
platform/x86/intel/pmc: Add Wildcat Lake support to Intel PMC SSRAM Telemetry
Add Wildcat Lake support to Intel PMC SSRAM Telemetry driver.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Link: https://lore.kernel.org/r/20250826183946.802684-1-xi.pardee@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-08-28 14:53:27 +03:00
Yen-Chi Huang
54cf445175
platform/x86: portwell-ec: Add suspend/resume support for watchdog
Portwell EC does not disable the watchdog during suspend. To avoid unwanted
resets, this patch adds suspend and resume callbacks (pwec_suspend() and
pwec_resume()) to the driver.

The watchdog is stopped in pwec_suspend() and restarted in pwec_resume() if
it was active before suspend.

Signed-off-by: Yen-Chi Huang <jesse.huang@portwell.com.tw>
Link: https://lore.kernel.org/r/c9cfe602-c279-4aa4-9932-76f47f26556c@portwell.com.tw
[ij: removed extra "3"]
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-08-28 14:52:54 +03:00
Johannes Berg
019f71a676 wifi: iwlwifi: cfg: add back more lost PCI IDs
Add back a few more PCI IDs to the config match table that
evidently I lost during the cleanups.

Fixes: 1fb053d987 ("wifi: iwlwifi: cfg: remove unnecessary configs")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250828095500.46fee422651e.I8f6c3e9eea9523bb1658f5690b715eb443740e07@changeid
2025-08-28 14:52:11 +03:00
Johannes Berg
586e3cb33b wifi: iwlwifi: fix byte count table for old devices
For devices handled by iwldvm, bc_table_dword was never set, but I missed
that during the removal thereof. Change the logic to not treat the byte
count table as dwords for devices older than 9000 series to fix that.

Fixes: 6570ea2278 ("wifi: iwlwifi: remove bc_table_dword transport config")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250828095500.eccd7d3939f1.Ibaffa06d0b3aa5f35a9451d94af34de208b8a2bc@changeid
2025-08-28 14:52:11 +03:00
Johannes Berg
22e6bdb129 wifi: iwlwifi: cfg: restore some 1000 series configs
In the fixed commit, I inadvertently removed two configurations
while combining the 0x0083/0x0084 device IDs. Replace the fixed
matches for the BG versions by a masked match and add the BGN
version back with a similar masked match.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=220477
Fixes: 1fb053d987 ("wifi: iwlwifi: cfg: remove unnecessary configs")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20250828095500.fabb99c2df9e.If0ad87bf9ab360da5f613e879fd416c17c544733@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-08-28 14:51:56 +03:00
Jens Axboe
98b6fa62c8 io_uring/kbuf: always use READ_ONCE() to read ring provided buffer lengths
Since the buffers are mapped from userspace, it is prudent to use
READ_ONCE() to read the value into a local variable, and use that for
any other actions taken. Having a stable read of the buffer length
avoids worrying about it changing after checking, or being read multiple
times.

Similarly, the buffer may well change in between it being picked and
being committed. Ensure the looping for incremental ring buffer commit
stops if it hits a zero sized buffer, as no further progress can be made
at that point.

Fixes: ae98dbf43d ("io_uring/kbuf: add support for incremental buffer consumption")
Link: https://lore.kernel.org/io-uring/tencent_000C02641F6250C856D0C26228DE29A3D30A@qq.com/
Reported-by: Qingyue Zhang <chunzhennn@qq.com>
Reported-by: Suoxing Zhang <aftern00n@qq.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-08-28 05:48:34 -06:00
Johannes Berg
b3bf3dcb24 mt76 fixes for 6.17
- fix regressions from mt7996 MLO support rework
 - fix offchannel handling issues on mt7996
 - mt792x fixes
 - fix multiple wcid linked list corruption issues
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Merge tag 'mt76-fixes-2025-08-27' of https://github.com/nbd168/wireless

Felix Fietkay says:
===================
mt76 fixes for 6.17

- fix regressions from mt7996 MLO support rework
- fix offchannel handling issues on mt7996
- mt792x fixes
- fix multiple wcid linked list corruption issues
===================

Change-Id: Ib3e9a3217a40b9da69e122514d47fa46699c864b
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-08-28 13:42:14 +02:00
Christian S. Lima
72031905cf rust: transmute: Add methods for FromBytes trait
The two methods added take a slice of bytes and return those bytes in
a specific type. These methods are useful when we need to transform
the stream of bytes into specific type.

Since the `is_aligned` method for pointer types has been stabilized in
`1.79` version and is being used in this patch, I'm enabling the
feature. In this case, using this method is useful to check the
alignment and avoid a giant boilerplate, such as `(foo.as_ptr() as
usize) % core::mem::align_of::<T>() == 0`.

Also add `#[allow(clippy::incompatible_msrv)]` where needed until the
MSRV is updated to `1.79`.

Suggested-by: Benno Lossin <benno.lossin@proton.me>
Link: https://github.com/Rust-for-Linux/linux/issues/1119
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Christian S. Lima <christiansantoslima21@gmail.com>
Link: https://lore.kernel.org/r/20250824213134.27079-1-christiansantoslima21@gmail.com
Acked-by: Miguel Ojeda <ojeda@kernel.org>
[acourbot@nvidia.com: minor rewording of commit messages and doccomments]
[acourbot@nvidia.com: revert slice implementation removal]
[acourbot@nvidia.com: move incompatible_msrv clippy allow closer to site of need]
[acourbot@nvidia.com: call the doctest method]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2025-08-28 20:41:36 +09:00
Qianfeng Rong
0e20450829 wifi: mwifiex: Initialize the chan_stats array to zero
The adapter->chan_stats[] array is initialized in
mwifiex_init_channel_scan_gap() with vmalloc(), which doesn't zero out
memory.  The array is filled in mwifiex_update_chan_statistics()
and then the user can query the data in mwifiex_cfg80211_dump_survey().

There are two potential issues here.  What if the user calls
mwifiex_cfg80211_dump_survey() before the data has been filled in.
Also the mwifiex_update_chan_statistics() function doesn't necessarily
initialize the whole array.  Since the array was not initialized at
the start that could result in an information leak.

Also this array is pretty small.  It's a maximum of 900 bytes so it's
more appropriate to use kcalloc() instead vmalloc().

Cc: stable@vger.kernel.org
Fixes: bf35443314 ("mwifiex: channel statistics support for mwifiex")
Suggested-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/20250815023055.477719-1-rongqianfeng@vivo.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-08-28 13:40:03 +02:00
Benjamin Berg
75575e2d25 wifi: mac80211: do not permit 40 MHz EHT operation on 5/6 GHz
The EHT PHY requirements state that 80 MHz must be supported on the 5
and 6 GHz bands unless the STA is 20 MHz only. So if the channel width
is limited to 40 MHz on a band other than 2.4 GHz, then disable EHT and
downgrade to HE.

The primary case where this can happen is if the hardware disables
puncturing using IEEE80211_HW_DISALLOW_PUNCTURING.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250826202553.a6582f3abf57.Ic670429dc7127f68c818b4290d950ebfb5a0b9e1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-08-28 13:39:16 +02:00
Colin Ian King
0718845019 soc: hisilicon: kunpeng_hccs: Fix spelling mistake "decrese" -> "decrease"
There is a spelling mistake in a dev_err message. Fix it.

Fixes: e3c289c091 ("soc: hisilicon: kunpeng_hccs: Support low power feature for the specified HCCS type")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2025-08-28 11:23:08 +00:00
Marcin Bernatowicz
12267f831f drm/xe/tests: Make cross-device dma-buf BOs CPU-visible on small BAR
Small-BAR systems (e.g., SR-IOV VFs in VMs) expose only a subset of
VRAM via PCI/BAR. Exporting a BO outside that window fails, and the
selftests also do CPU fill/verify.

Set XE_BO_FLAG_NEEDS_CPU_ACCESS for cross-device variants to force
CPU-mappable placement and keep tests reliable. Large-BAR/P2P setups
are unaffected.

Suggested-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://lore.kernel.org/r/20250814145950.430231-1-marcin.bernatowicz@linux.intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
2025-08-28 13:21:20 +02:00
Paolo Abeni
e250798586 Merge branch 'net-better-drop-accounting'
Eric Dumazet says:

====================
net: better drop accounting

Incrementing sk->sk_drops for every dropped packet can
cause serious cache line contention under DOS.

Add optional sk->sk_drop_counters pointer so that
protocols can opt-in to use two dedicated cache lines
to hold drop counters.

Convert UDP and RAW to use this infrastructure.

Tested on UDP (see patch 4/5 for details)

Before:

nstat -n ; sleep 1 ; nstat | grep Udp
Udp6InDatagrams                 615091             0.0
Udp6InErrors                    3904277            0.0
Udp6RcvbufErrors                3904277            0.0

After:

nstat -n ; sleep 1 ; nstat | grep Udp
Udp6InDatagrams                 816281             0.0
Udp6InErrors                    7497093            0.0
Udp6RcvbufErrors                7497093            0.0
====================

Link: https://patch.msgid.link/20250826125031.1578842-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-28 13:14:52 +02:00
Eric Dumazet
b81aa23234 inet: raw: add drop_counters to raw sockets
When a packet flood hits one or more RAW sockets, many cpus
have to update sk->sk_drops.

This slows down other cpus, because currently
sk_drops is in sock_write_rx group.

Add a socket_drop_counters structure to raw sockets.

Using dedicated cache lines to hold drop counters
makes sure that consumers no longer suffer from
false sharing if/when producers only change sk->sk_drops.

This adds 128 bytes per RAW socket.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250826125031.1578842-6-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-28 13:14:50 +02:00
Eric Dumazet
51132b99f0 udp: add drop_counters to udp socket
When a packet flood hits one or more UDP sockets, many cpus
have to update sk->sk_drops.

This slows down other cpus, because currently
sk_drops is in sock_write_rx group.

Add a socket_drop_counters structure to udp sockets.

Using dedicated cache lines to hold drop counters
makes sure that consumers no longer suffer from
false sharing if/when producers only change sk->sk_drops.

This adds 128 bytes per UDP socket.

Tested with the following stress test, sending about 11 Mpps
to a dual socket AMD EPYC 7B13 64-Core.

super_netperf 20 -t UDP_STREAM -H DUT -l10 -- -n -P,1000 -m 120
Note: due to socket lookup, only one UDP socket is receiving
packets on DUT.

Then measure receiver (DUT) behavior. We can see both
consumer and BH handlers can process more packets per second.

Before:

nstat -n ; sleep 1 ; nstat | grep Udp
Udp6InDatagrams                 615091             0.0
Udp6InErrors                    3904277            0.0
Udp6RcvbufErrors                3904277            0.0

After:

nstat -n ; sleep 1 ; nstat | grep Udp
Udp6InDatagrams                 816281             0.0
Udp6InErrors                    7497093            0.0
Udp6RcvbufErrors                7497093            0.0

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250826125031.1578842-5-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-28 13:14:50 +02:00
Eric Dumazet
c51613fa27 net: add sk->sk_drop_counters
Some sockets suffer from heavy false sharing on sk->sk_drops,
and fields in the same cache line.

Add sk->sk_drop_counters to:

- move the drop counter(s) to dedicated cache lines.
- Add basic NUMA awareness to these drop counter(s).

Following patches will use this infrastructure for UDP and RAW sockets.

sk_clone_lock() is not yet ready, it would need to properly
set newsk->sk_drop_counters if we plan to use this for TCP sockets.

v2: used Paolo suggestion from https://lore.kernel.org/netdev/8f09830a-d83d-43c9-b36b-88ba0a23e9b2@redhat.com/

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250826125031.1578842-4-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-28 13:14:50 +02:00
Eric Dumazet
cb4d5a6eb6 net: add sk_drops_skbadd() helper
Existing sk_drops_add() helper is renamed to sk_drops_skbadd().

Add sk_drops_add() and convert sk_drops_inc() to use it.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250826125031.1578842-3-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-28 13:14:50 +02:00
Eric Dumazet
f86f42ed2c net: add sk_drops_read(), sk_drops_inc() and sk_drops_reset() helpers
We want to split sk->sk_drops in the future to reduce
potential contention on this field.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250826125031.1578842-2-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-28 13:14:50 +02:00
Jakub Kicinski
c2a756891b uapi: wrap compiler_types.h in an ifdef instead of the implicit strip
The uAPI stddef header includes compiler_types.h, a kernel-only
header, to make sure that kernel definitions of annotations
like __counted_by() take precedence.

There is a hack in scripts/headers_install.sh which strips includes
of compiler.h and compiler_types.h when installing uAPI headers.
While explicit handling makes sense for compiler.h, which is included
all over the uAPI, compiler_types.h is only included by stddef.h
(within the uAPI, obviously it's included in kernel code a lot).

Remove the stripping from scripts/headers_install.sh and wrap
the include of compiler_types.h in #ifdef __KERNEL__ instead.
This should be equivalent functionally, but is easier to understand
to a casual reader of the code. It also makes it easier to work
with kernel headers directly from under tools/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250825201828.2370083-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-28 13:06:48 +02:00
Johannes Berg
1d33694462 wifi: iwlwifi: uefi: check DSM item validity
The first array index is a bitmap indicating which of the
other values are valid. Check that bitmap before returning
a value.

Fixes: fc7214c3c9 ("wifi: iwlwifi: read DSM functions from UEFI")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220085
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250828095500.59ec52ff865e.I9e11f497a029eb38f481b2c90c43c0935285216d@changeid
2025-08-28 14:00:45 +03:00
Johannes Berg
7bf2dfccc2 wifi: iwlwifi: acpi: check DSM func validity
The DSM func 0 (DSM_FUNC_QUERY) returns a bitmap of which
other functions contain valid data, query and check it
before returning other functions data.

Fixes: 9db93491f2 ("iwlwifi: acpi: support device specific method (DSM)")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220085
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250828095500.881e17ff8f6a.Ic6d92997d9d5fad127919d6e1b830cd3fe944468@changeid
2025-08-28 14:00:45 +03:00
Emmanuel Grumbach
224476613c wifi: iwlwifi: if scratch is ~0U, consider it a failure
We want to see bits being set in the scratch register upon resume, but
if all the bits are set, it means that we were kicked out of the PCI bus
and that clearly doesn't mean we can assume the firmware is still alive
after the suspend / resume cycle.

Fixes: cb347bd29d ("wifi: iwlwifi: mvm: fix hibernation")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250828095500.0f203e559242.I59eff718cb5fda575db41081a1a389f7af488717@changeid
2025-08-28 14:00:45 +03:00