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1,296,507 commits

Author SHA1 Message Date
Daniel Thompson
db2f9c7dc2 kdb: Fix console handling when editing and tab-completing commands
Currently, if the cursor position is not at the end of the command buffer
and the user uses the Tab-complete functions, then the console does not
leave the cursor in the correct position.

For example consider the following buffer with the cursor positioned
at the ^:

md kdb_pro 10
          ^

Pressing tab should result in:

md kdb_prompt_str 10
                 ^

However this does not happen. Instead the cursor is placed at the end
(after then 10) and further cursor movement redraws incorrectly. The
same problem exists when we double-Tab but in a different part of the
code.

Fix this by sending a carriage return and then redisplaying the text to
the left of the cursor.

Cc: stable@vger.kernel.org
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20240424-kgdb_read_refactor-v3-3-f236dbe9828d@linaro.org
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2024-04-26 17:13:30 +01:00
Daniel Thompson
09b3598942 kdb: Use format-strings rather than '\0' injection in kdb_read()
Currently when kdb_read() needs to reposition the cursor it uses copy and
paste code that works by injecting an '\0' at the cursor position before
delivering a carriage-return and reprinting the line (which stops at the
'\0').

Tidy up the code by hoisting the copy and paste code into an appropriately
named function. Additionally let's replace the '\0' injection with a
proper field width parameter so that the string will be abridged during
formatting instead.

Cc: stable@vger.kernel.org # Not a bug fix but it is needed for later bug fixes
Tested-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20240424-kgdb_read_refactor-v3-2-f236dbe9828d@linaro.org
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2024-04-26 17:13:30 +01:00
Daniel Thompson
e9730744bf kdb: Fix buffer overflow during tab-complete
Currently, when the user attempts symbol completion with the Tab key, kdb
will use strncpy() to insert the completed symbol into the command buffer.
Unfortunately it passes the size of the source buffer rather than the
destination to strncpy() with predictably horrible results. Most obviously
if the command buffer is already full but cp, the cursor position, is in
the middle of the buffer, then we will write past the end of the supplied
buffer.

Fix this by replacing the dubious strncpy() calls with memmove()/memcpy()
calls plus explicit boundary checks to make sure we have enough space
before we start moving characters around.

Reported-by: Justin Stitt <justinstitt@google.com>
Closes: https://lore.kernel.org/all/CAFhGd8qESuuifuHsNjFPR-Va3P80bxrw+LqvC8deA8GziUJLpw@mail.gmail.com/
Cc: stable@vger.kernel.org
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Justin Stitt <justinstitt@google.com>
Tested-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20240424-kgdb_read_refactor-v3-1-f236dbe9828d@linaro.org
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2024-04-26 17:13:30 +01:00
Arnd Bergmann
daa1bd43e5 MediaTek driver fixes for v6.9
This fixes the MediaTek SVS driver to look for the right thermal zone
 names, and adds a missing Kconfig dependency for mtk-socinfo.
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Merge tag 'mtk-soc-fixes-for-v6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux into for-next

MediaTek driver fixes for v6.9

This fixes the MediaTek SVS driver to look for the right thermal zone
names, and adds a missing Kconfig dependency for mtk-socinfo.
2024-04-26 18:09:14 +02:00
Arnd Bergmann
14672a9b3e Qualcomm driver fix for v6.9
This reworks the memory layout of the argument buffers passed to trusted
 applications in QSEECOM, to avoid failures and system crashes.
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Merge tag 'qcom-drivers-fixes-for-6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into for-next

Qualcomm driver fix for v6.9

This reworks the memory layout of the argument buffers passed to trusted
applications in QSEECOM, to avoid failures and system crashes.

* tag 'qcom-drivers-fixes-for-6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  firmware: qcom: uefisecapp: Fix memory related IO errors and crashes

Link: https://lore.kernel.org/r/20240420163816.1133528-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 18:08:02 +02:00
Timur Tabi
b58a0bc904 nouveau: add command-line GSP-RM registry support
Add the NVreg_RegistryDwords command line parameter, which allows
specifying additional registry keys to be sent to GSP-RM.  This
allows additional configuration, debugging, and experimentation
with GSP-RM, which uses these keys to alter its behavior.

Note that these keys are passed as-is to GSP-RM, and Nouveau does
not parse them.  This is in contrast to the Nvidia driver, which may
parse some of the keys to configure some functionality in concert with
GSP-RM.  Therefore, any keys which also require action by the driver
may not function correctly when passed by Nouveau.  Caveat emptor.

The name and format of NVreg_RegistryDwords is the same as used by
the Nvidia driver, to maintain compatibility.

Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240417215317.3490856-1-ttabi@nvidia.com
2024-04-26 18:06:39 +02:00
Arnd Bergmann
7e68538346 i.MX fixes for 6.9, round 2:
- Fix i.MX8MP the second CSI2 assigned-clock property which got wrong by
   commit f78835d1e6 ("arm64: dts: imx8mp: reparent MEDIA_MIPI_PHY1_REF
   to CLK_24M")
 - Correct USB over-current polarity for imx6ull-tarragon board
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Merge tag 'imx-fixes-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into for-next

i.MX fixes for 6.9, round 2:

- Fix i.MX8MP the second CSI2 assigned-clock property which got wrong by
  commit f78835d1e6 ("arm64: dts: imx8mp: reparent MEDIA_MIPI_PHY1_REF
  to CLK_24M")
- Correct USB over-current polarity for imx6ull-tarragon board

* tag 'imx-fixes-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx6ull-tarragon: fix USB over-current polarity
  arm64: dts: imx8mp: Fix assigned-clocks for second CSI2

Link: https://lore.kernel.org/r/ZioopqscxwUOwQkf@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 18:05:31 +02:00
Arnd Bergmann
9e0794aeac MediaTek ARM64 DTS fixes for v6.9
This fixes some dts validation issues against bindings for multiple SoCs,
 GPU voltage constraints for Chromebook devices, missing gce-client-reg
 on various nodes (performance issues) on MT8183/92/95, and also fixes
 boot issues on MT8195 when SPMI is built as module.
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Merge tag 'mtk-dts64-fixes-for-v6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux into for-next

MediaTek ARM64 DTS fixes for v6.9

This fixes some dts validation issues against bindings for multiple SoCs,
GPU voltage constraints for Chromebook devices, missing gce-client-reg
on various nodes (performance issues) on MT8183/92/95, and also fixes
boot issues on MT8195 when SPMI is built as module.

* tag 'mtk-dts64-fixes-for-v6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux:
  arm64: dts: mediatek: mt2712: fix validation errors
  arm64: dts: mediatek: mt7986: prefix BPI-R3 cooling maps with "map-"
  arm64: dts: mediatek: mt7986: drop invalid thermal block clock
  arm64: dts: mediatek: mt7986: drop "#reset-cells" from Ethernet controller
  arm64: dts: mediatek: mt7986: drop invalid properties from ethsys
  arm64: dts: mediatek: mt7622: drop "reset-names" from thermal block
  arm64: dts: mediatek: mt7622: fix ethernet controller "compatible"
  arm64: dts: mediatek: mt7622: fix IR nodename
  arm64: dts: mediatek: mt7622: fix clock controllers
  arm64: dts: mediatek: mt8186-corsola: Update min voltage constraint for Vgpu
  arm64: dts: mediatek: mt8183-kukui: Use default min voltage for MT6358
  arm64: dts: mediatek: mt8195-cherry: Update min voltage constraint for MT6315
  arm64: dts: mediatek: mt8192-asurada: Update min voltage constraint for MT6315
  arm64: dts: mediatek: cherry: Describe CPU supplies
  arm64: dts: mediatek: mt8195: Add missing gce-client-reg to mutex1
  arm64: dts: mediatek: mt8195: Add missing gce-client-reg to mutex
  arm64: dts: mediatek: mt8195: Add missing gce-client-reg to vpp/vdosys
  arm64: dts: mediatek: mt8192: Add missing gce-client-reg to mutex
  arm64: dts: mediatek: mt8183: Add power-domains properity to mfgcfg
2024-04-26 18:03:44 +02:00
Arnd Bergmann
fdabd4b2fb AT91 fixes for 6.9
It contains:
 - fixes for regulator nodes on SAMA7G5 based boards: proper DT property is used
   to setup regulators suspend voltage.
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Merge tag 'at91-fixes-6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into for-next

AT91 fixes for 6.9

It contains:
- fixes for regulator nodes on SAMA7G5 based boards: proper DT property is used
  to setup regulators suspend voltage.

* tag 'at91-fixes-6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: dts: microchip: at91-sama7g54_curiosity: Replace regulator-suspend-voltage with the valid property
  ARM: dts: microchip: at91-sama7g5ek: Replace regulator-suspend-voltage with the valid property

Link: https://lore.kernel.org/r/20240421124824.960096-1-claudiu.beznea@tuxon.dev
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 18:01:58 +02:00
Arnd Bergmann
14e9d449e9 Qualcomm Arm64 DeviceTree fixes for v6.9
This corrects the watchdog IRQ flags for a number of remoteproc
 instances, which otherwise prevents the driver from probe in the face of
 a probe deferral.
 
 Improvements in other areas, such as USB, have made it possible for CX
 rail voltage on SC8280XP to be lowered, no longer meeting requirements
 of active PCIe controllers. Necessary votes are added to these
 controllers.
 
 The MSI definitions for PCIe controllers in SM8450, SM8550, and SM8650
 was incorrect, due to a bug in the driver. As this has now been fixed
 the definition needs to be corrected.
 
 Lastly, the SuperSpeed PHY irq of the second USB controller in SC8180x,
 and the compatible string for X1 Elite domain idle states are corrected.
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Merge tag 'qcom-arm64-fixes-for-6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into for-next

Qualcomm Arm64 DeviceTree fixes for v6.9

This corrects the watchdog IRQ flags for a number of remoteproc
instances, which otherwise prevents the driver from probe in the face of
a probe deferral.

Improvements in other areas, such as USB, have made it possible for CX
rail voltage on SC8280XP to be lowered, no longer meeting requirements
of active PCIe controllers. Necessary votes are added to these
controllers.

The MSI definitions for PCIe controllers in SM8450, SM8550, and SM8650
was incorrect, due to a bug in the driver. As this has now been fixed
the definition needs to be corrected.

Lastly, the SuperSpeed PHY irq of the second USB controller in SC8180x,
and the compatible string for X1 Elite domain idle states are corrected.

* tag 'qcom-arm64-fixes-for-6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  arm64: dts: qcom: sc8180x: Fix ss_phy_irq for secondary USB controller
  arm64: dts: qcom: sm8650: Fix the msi-map entries
  arm64: dts: qcom: sm8550: Fix the msi-map entries
  arm64: dts: qcom: sm8450: Fix the msi-map entries
  arm64: dts: qcom: sc8280xp: add missing PCIe minimum OPP
  arm64: dts: qcom: x1e80100: Fix the compatible for cluster idle states
  arm64: dts: qcom: Fix type of "wdog" IRQs for remoteprocs

Link: https://lore.kernel.org/r/20240420161002.1132240-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 18:01:13 +02:00
Arnd Bergmann
32a1eaa986
Merge branch 'v6.9-armsoc/dtsfixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into for-next
* 'v6.9-armsoc/dtsfixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  arm64: dts: rockchip: Fix USB interface compatible string on kobol-helios64
  arm64: dts: rockchip: regulator for sd needs to be always on for BPI-R2Pro
  dt-bindings: rockchip: grf: Add missing type to 'pcie-phy' node
  arm64: dts: rockchip: drop redundant disable-gpios in Lubancat 2
  arm64: dts: rockchip: drop redundant disable-gpios in Lubancat 1
  arm64: dts: rockchip: drop redundant pcie-reset-suspend in Scarlet Dumo
  arm64: dts: rockchip: mark system power controller and fix typo on orangepi-5-plus
  arm64: dts: rockchip: Designate the system power controller on QuartzPro64
  arm64: dts: rockchip: drop panel port unit address in GRU Scarlet
  arm64: dts: rockchip: Remove unsupported node from the Pinebook Pro dts
  arm64: dts: rockchip: Fix the i2c address of es8316 on Cool Pi CM5
  arm64: dts: rockchip: add regulators for PCIe on RK3399 Puma Haikou
  arm64: dts: rockchip: enable internal pull-up on PCIE_WAKE# for RK3399 Puma
  arm64: dts: rockchip: enable internal pull-up on Q7_USB_ID for RK3399 Puma
  arm64: dts: rockchip: fix alphabetical ordering RK3399 puma
  arm64: dts: rockchip: enable internal pull-up for Q7_THRM# on RK3399 Puma
  arm64: dts: rockchip: set PHY address of MT7531 switch to 0x1f

Link: https://lore.kernel.org/r/3413596.CbtlEUcBR6@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 17:58:57 +02:00
Chris Morgan
fd46e5e136 arm64: dts: allwinner: h616: Add NMI device node
Add device node for the H616 Non Maskable Interrupt (NMI) controller.
This controller is present on all H616 boards and derivatives such as
the T507 and H700. Note that on the H616 no NMI pad is exposed.

Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20240418181615.1370179-3-macroalpha82@gmail.com
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
2024-04-26 17:50:16 +02:00
Mohammad Shehar Yaar Tausif
ff4d7e1721 ARM: tegra: tegra20-ac97: Replace deprecated "gpio" suffix
Replace "gpio" suffix with "gpios" for tegra20-ac97 DTS as the "gpio"
suffix is deprecated.

Signed-off-by: Mohammad Shehar Yaar Tausif <sheharyaar48@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-04-26 17:45:18 +02:00
Thierry Reding
22b92b28fc dt-bindings: display: tegra: Allow dma-coherent on Tegra194 and later
Tegra194 and later chips have a coherency fabric, so some devices can be
marked as DMA coherent to avoid unnecessary cache maintenance.

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-04-26 17:40:18 +02:00
Jon Hunter
de024f63ce soc/tegra: pmc: Add EQOS wake event for Tegra194 and Tegra234
Add the wake event for the EQOS ethernet controller on Tegra194 and
Tegra234 devices, so that system can be woken up by an event from this
ethernet controller.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-04-26 17:36:10 +02:00
Akhil R
4d4d3fe6b3 arm64: defconfig: Enable Tegra Security Engine
Enable Tegra Security Engine which can accelerate various
AES and HASH algorithms on supported hardware.

Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-04-26 17:31:44 +02:00
Nicolas Chauvet
3394cc0e38 ARM: tegra: paz00: Add emc-tables for ram-code 1
The same table as ram-code 0 operates correctly on ram-code 1

v2: rebase on current kernel

Signed-off-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-04-26 17:14:35 +02:00
Jose E. Marchesi
6e25bcf06a bpf_helpers.h: Define bpf_tail_call_static when building with GCC
The definition of bpf_tail_call_static in tools/lib/bpf/bpf_helpers.h
is guarded by a preprocessor check to assure that clang is recent
enough to support it.  This patch updates the guard so the function is
compiled when using GCC 13 or later as well.

Tested in bpf-next master. No regressions.

Signed-off-by: Jose E. Marchesi <jose.marchesi@oracle.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240426145158.14409-1-jose.marchesi@oracle.com
2024-04-26 17:10:04 +02:00
Colin Ian King
957a36c4fc ALSA: kunit: make read-only array buf_samples static const
Don't populate the read-only array buf_samples on the stack at
run time, instead make it static const.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Message-ID: <20240425160754.114716-1-colin.i.king@gmail.com>
2024-04-26 17:07:01 +02:00
Lucas De Marchi
6a2a90cba1 drm/xe/display: Fix ADL-N detection
Contrary to i915, in xe ADL-N is kept as a different platform, not a
subplatform of ADL-P. Since the display side doesn't need to
differentiate between P and N, i.e. IS_ALDERLAKE_P_N() is never called,
just fixup the compat header to check for both P and N.

Moving ADL-N to be a subplatform would be more complex as the firmware
loading in xe only handles platforms, not subplatforms, as going forward
the direction is to check on IP version rather than
platforms/subplatforms.

Fix warning when initializing display:

	xe 0000:00:02.0: [drm:intel_pch_type [xe]] Found Alder Lake PCH
	------------[ cut here ]------------
	xe 0000:00:02.0: drm_WARN_ON(!((dev_priv)->info.platform == XE_ALDERLAKE_S) && !((dev_priv)->info.platform == XE_ALDERLAKE_P))

And wrong paths being taken on the display side.

Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240425181610.2704633-1-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2024-04-26 08:00:29 -07:00
Jens Remus
b961ec10b9 s390/vdso: Add CFI for RA register to asm macro vdso_func
The return-address (RA) register r14 is specified as volatile in the
s390x ELF ABI [1]. Nevertheless proper CFI directives must be provided
for an unwinder to restore the return address, if the RA register
value is changed from its value at function entry, as it is the case.

[1]: s390x ELF ABI, https://github.com/IBM/s390x-abi/releases

Fixes: 4bff8cb545 ("s390: convert to GENERIC_VDSO")
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2024-04-26 16:22:38 +02:00
Sven Schnelle
5e1a99cf22 s390/3270: Fix buffer assignment
Since commit 1b2ac5a6d6 ("s390/3270: use new address translation
helpers") rq->buffer is passed unconditionally to virt_to_dma32().
The 3270 driver allocates requests without buffer, so the value passed
to virt_to_dma32 might be NULL. Check for NULL before assigning.

Fixes: 1b2ac5a6d6 ("s390/3270: use new address translation helpers")
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2024-04-26 16:22:38 +02:00
Pierre-Louis Bossart
a36ec5f762 soundwire: intel_ace2x: simplify check_wake()
Since LunarLake, we use the HDadio WAKEEN/WAKESTS to detect wakes for
SoundWire codecs. This patch follows the HDaudio example and
simplifies the behavior on wake-up by unconditionally waking up all
links.

This behavior makes a lot of sense when removing the jack, which may
signal that the user wants to start rendering audio using the local
amplifiers. Resuming all links helps make sure the amplifiers are
ready to be used. Worst case, the pm_runtime suspend would kick-in
after several seconds of inactivity.

Closes: https://github.com/thesofproject/linux/issues/4687
Co-developed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Keqiao Zhang <keqiao.zhang@intel.com>
Link: https://lore.kernel.org/r/20240426064030.2305343-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-04-26 19:52:11 +05:30
Pierre-Louis Bossart
79e7123c07 soundwire: intel_ace2x: fix wakeup handling
The initial programming sequence only worked in the case where the
OFLEN bit is set, i.e. the DSP handles the SoundWire interface. In the
Linux integration, the interface is owned by the host. This disconnect
leads to wake-ups being routed to the DSP and not to the host.

The suggested update is to rely on the global HDAudio WAKEEN/STATESTS
registers, with the SDI bits used to program the wakeups and check the
status.

Note that there is no way to know which peripheral generated a
wake-up. When the hardware detects a change, it sets all the bits
corresponding to LSDIIDx. The LSDIIDx information can be used to
figure out on which link the wakeup happened, but for further details
the software will have to check the status of each peripheral.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20240426064030.2305343-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-04-26 19:52:11 +05:30
Krzysztof Kozlowski
5284e4202a drm/tiny: st7586: drop driver owner assignment
Core in spi_register_driver() already sets the .owner, so driver
does not need to.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: David Lechner <david@lechnology.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240327174842.519758-4-krzysztof.kozlowski@linaro.org
2024-04-26 16:03:19 +02:00
Krzysztof Kozlowski
9745097ca7 drm/tiny: panel-mipi-dbi: drop driver owner assignment
Core in spi_register_driver() already sets the .owner, so driver
does not need to.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240327174842.519758-3-krzysztof.kozlowski@linaro.org
2024-04-26 16:03:06 +02:00
Krzysztof Kozlowski
3ab28b7d8d drm/tiny: mi0283qt: drop driver owner assignment
Core in spi_register_driver() already sets the .owner, so driver
does not need to.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240327174842.519758-2-krzysztof.kozlowski@linaro.org
2024-04-26 16:02:50 +02:00
Krzysztof Kozlowski
6898837d43 drm/tiny: ili9225: drop driver owner assignment
Core in spi_register_driver() already sets the .owner, so driver
does not need to.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: David Lechner <david@lechnology.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240327174842.519758-1-krzysztof.kozlowski@linaro.org
2024-04-26 16:02:25 +02:00
Dongliang Mu
e171c7cef2 docs/zh_CN: add process/cve Chinese translation
Translate process/cve.rst into Chinese and add it to
Documentation/translations/zh_CN directory.

Signed-off-by: Dongliang Mu <dzm91@hust.edu.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240422041115.2439166-1-dzm91@hust.edu.cn
2024-04-26 07:54:41 -06:00
Bilbao, Carlos
5bc23521d6 docs/MAINTAINERS: Update my email address
In the near future, I will not have access to the email address I used as
maintainer of a number of things, mostly in the documentation. Update that
address to my personal email address (see Link) so I can continue
contributing and update .mailmap.

Link: https://lore.kernel.org/all/BL1PR12MB58749FF2BFEDB817DE1FE6CBF82A2@BL1PR12MB5874.namprd12.prod.outlook.com/
Signed-off-by: Carlos Bilbao <carlos.bilbao@amd.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/139b8cab-009c-4688-be41-c4c526532ea1@amd.com
2024-04-26 07:42:47 -06:00
linke li
6ad0d7e0f4 sbitmap: use READ_ONCE to access map->word
In __sbitmap_queue_get_batch(), map->word is read several times, and
update atomically using atomic_long_try_cmpxchg(). But the first two read
of map->word is not protected.

This patch moves the statement val = READ_ONCE(map->word) forward,
eliminating unprotected accesses to map->word within the function.
It is aimed at reducing the number of benign races reported by KCSAN in
order to focus future debugging effort on harmful races.

Signed-off-by: linke li <lilinke99@qq.com>
Link: https://lore.kernel.org/r/tencent_0B517C25E519D3D002194E8445E86C04AD0A@qq.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-04-26 07:40:28 -06:00
linke li
a4d416dc60 io_uring/msg_ring: reuse ctx->submitter_task read using READ_ONCE instead of re-reading it
In io_msg_exec_remote(), ctx->submitter_task is read using READ_ONCE at
the beginning of the function, checked, and then re-read from
ctx->submitter_task, voiding all guarantees of the checks. Reuse the value
that was read by READ_ONCE to ensure the consistency of the task struct
throughout the function.

Signed-off-by: linke li <lilinke99@qq.com>
Link: https://lore.kernel.org/r/tencent_F9B2296C93928D6F68FF0C95C33475C68209@qq.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-04-26 07:40:12 -06:00
Paolo Abeni
d5115a55ff Merge branch 'implement-reset-reason-mechanism-to-detect'
Jason Xing says:

====================
Implement reset reason mechanism to detect

From: Jason Xing <kernelxing@tencent.com>

In production, there are so many cases about why the RST skb is sent but
we don't have a very convenient/fast method to detect the exact underlying
reasons.

RST is implemented in two kinds: passive kind (like tcp_v4_send_reset())
and active kind (like tcp_send_active_reset()). The former can be traced
carefully 1) in TCP, with the help of drop reasons, which is based on
Eric's idea[1], 2) in MPTCP, with the help of reset options defined in
RFC 8684. The latter is relatively independent, which should be
implemented on our own, such as active reset reasons which can not be
replace by skb drop reason or something like this.

In this series, I focus on the fundamental implement mostly about how
the rstreason mechanism works and give the detailed passive part as an
example, not including the active reset part. In future, we can go
further and refine those NOT_SPECIFIED reasons.

Here are some examples when tracing:
<idle>-0       [002] ..s1.  1830.262425: tcp_send_reset: skbaddr=x
        skaddr=x src=x dest=x state=x reason=NOT_SPECIFIED
<idle>-0       [002] ..s1.  1830.262425: tcp_send_reset: skbaddr=x
        skaddr=x src=x dest=x state=x reason=NO_SOCKET

[1]
Link: https://lore.kernel.org/all/CANn89iJw8x-LqgsWOeJQQvgVg6DnL5aBRLi10QN2WBdr+X4k=w@mail.gmail.com/
====================

Link: https://lore.kernel.org/r/20240425031340.46946-1-kerneljasonxing@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-26 15:34:05 +02:00
Jason Xing
b533fb9cf4 rstreason: make it work in trace world
At last, we should let it work by introducing this reset reason in
trace world.

One of the possible expected outputs is:
... tcp_send_reset: skbaddr=xxx skaddr=xxx src=xxx dest=xxx
state=TCP_ESTABLISHED reason=NOT_SPECIFIED

Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-26 15:34:01 +02:00
Jason Xing
215d40248b mptcp: introducing a helper into active reset logic
Since we have mapped every mptcp reset reason definition in enum
sk_rst_reason, introducing a new helper can cover some missing places
where we have already set the subflow->reset_reason.

Note: using SK_RST_REASON_NOT_SPECIFIED is the same as
SK_RST_REASON_MPTCP_RST_EUNSPEC. They are both unknown. So we can convert
it directly.

Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-26 15:34:00 +02:00
Jason Xing
3e140491dd mptcp: support rstreason for passive reset
It relies on what reset options in the skb are as rfc8684 says. Reusing
this logic can save us much energy. This patch replaces most of the prior
NOT_SPECIFIED reasons.

Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-26 15:34:00 +02:00
Jason Xing
120391ef9c tcp: support rstreason for passive reset
Reuse the dropreason logic to show the exact reason of tcp reset,
so we can finally display the corresponding item in enum sk_reset_reason
instead of reinventing new reset reasons. This patch replaces all
the prior NOT_SPECIFIED reasons.

Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-26 15:34:00 +02:00
Jason Xing
5691276b39 rstreason: prepare for active reset
Like what we did to passive reset:
only passing possible reset reason in each active reset path.

No functional changes.

Signed-off-by: Jason Xing <kernelxing@tencent.com>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-26 15:34:00 +02:00
Jason Xing
6be49deaa0 rstreason: prepare for passive reset
Adjust the parameter and support passing reason of reset which
is for now NOT_SPECIFIED. No functional changes.

Signed-off-by: Jason Xing <kernelxing@tencent.com>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-26 15:34:00 +02:00
Jason Xing
5cb2cb3cb2 net: introduce rstreason to detect why the RST is sent
Add a new standalone file for the easy future extension to support
both active reset and passive reset in the TCP/DCCP/MPTCP protocols.

This patch only does the preparations for reset reason mechanism,
nothing else changes.

The reset reasons are divided into three parts:
1) reuse drop reasons for passive reset in TCP
2) our own independent reasons which aren't relying on other reasons at all
3) reuse MP_TCPRST option for MPTCP

The benefits of a standalone reset reason are listed here:
1) it can cover more than one case, such as reset reasons in MPTCP,
active reset reasons.
2) people can easily/fastly understand and maintain this mechanism.
3) we get unified format of output with prefix stripped.
4) more new reset reasons are on the way
...

I will implement the basic codes of active/passive reset reason in
those three protocols, which are not complete for this moment. For
passive reset part in TCP, I only introduce the NO_SOCKET common case
which could be set as an example.

After this series applied, it will have the ability to open a new
gate to let other people contribute more reasons into it :)

Signed-off-by: Jason Xing <kernelxing@tencent.com>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-26 15:34:00 +02:00
Song Yoong Siang
15fd021bc4 igc: Add Tx hardware timestamp request for AF_XDP zero-copy packet
This patch adds support to per-packet Tx hardware timestamp request to
AF_XDP zero-copy packet via XDP Tx metadata framework. Please note that
user needs to enable Tx HW timestamp capability via igc_ioctl() with
SIOCSHWTSTAMP cmd before sending xsk Tx hardware timestamp request.

Same as implementation in RX timestamp XDP hints kfunc metadata, Timer 0
(adjustable clock) is used in xsk Tx hardware timestamp. i225/i226 have
four sets of timestamping registers. *skb and *xsk_tx_buffer pointers
are used to indicate whether the timestamping register is already occupied.

Furthermore, a boolean variable named xsk_pending_ts is used to hold the
transmit completion until the tx hardware timestamp is ready. This is
because, for i225/i226, the timestamp notification event comes some time
after the transmit completion event. The driver will retrigger hardware irq
to clean the packet after retrieve the tx hardware timestamp.

Besides, xsk_meta is added into struct igc_tx_timestamp_request as a hook
to the metadata location of the transmit packet. When the Tx timestamp
interrupt is fired, the interrupt handler will copy the value of Tx hwts
into metadata location via xsk_tx_metadata_complete().

This patch is tested with tools/testing/selftests/bpf/xdp_hw_metadata
on Intel ADL-S platform. Below are the test steps and results.

Test Step 1: Run xdp_hw_metadata app
 ./xdp_hw_metadata <iface> > /dev/shm/result.log

Test Step 2: Enable Tx hardware timestamp
 hwstamp_ctl -i <iface> -t 1 -r 1

Test Step 3: Run ptp4l and phc2sys for time synchronization

Test Step 4: Generate UDP packets with 1ms interval for 10s
 trafgen --dev <iface> '{eth(da=<addr>), udp(dp=9091)}' -t 1ms -n 10000

Test Step 5: Rerun Step 1-3 with 10s iperf3 as background traffic

Test Step 6: Rerun Step 1-4 with 10s iperf3 as background traffic

Based on iperf3 results below, the impact of holding tx completion to
throughput is not observable.

Result of last UDP packet (no. 10000) in Step 4:
poll: 1 (0) skip=99 fail=0 redir=10000
xsk_ring_cons__peek: 1
0x5640a37972d0: rx_desc[9999]->addr=f2110 addr=f2110 comp_addr=f2110 EoP
rx_hash: 0x2049BE1D with RSS type:0x1
HW RX-time:   1679819246792971268 (sec:1679819246.7930) delta to User RX-time sec:0.0000 (14.990 usec)
XDP RX-time:   1679819246792981987 (sec:1679819246.7930) delta to User RX-time sec:0.0000 (4.271 usec)
No rx_vlan_tci or rx_vlan_proto, err=-95
0x5640a37972d0: ping-pong with csum=ab19 (want 315b) csum_start=34 csum_offset=6
0x5640a37972d0: complete tx idx=9999 addr=f010
HW TX-complete-time:   1679819246793036971 (sec:1679819246.7930) delta to User TX-complete-time sec:0.0001 (77.656 usec)
XDP RX-time:   1679819246792981987 (sec:1679819246.7930) delta to User TX-complete-time sec:0.0001 (132.640 usec)
HW RX-time:   1679819246792971268 (sec:1679819246.7930) delta to HW TX-complete-time sec:0.0001 (65.703 usec)
0x5640a37972d0: complete rx idx=10127 addr=f2110

Result of iperf3 without tx hwts request in step 5:
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  2.74 GBytes  2.36 Gbits/sec    0             sender
[  5]   0.00-10.05  sec  2.74 GBytes  2.34 Gbits/sec                  receiver

Result of iperf3 running parallel with trafgen command in step 6:
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  2.74 GBytes  2.36 Gbits/sec    0             sender
[  5]   0.00-10.04  sec  2.74 GBytes  2.34 Gbits/sec                  receiver

Co-developed-by: Lai Peter Jun Ann <jun.ann.lai@intel.com>
Signed-off-by: Lai Peter Jun Ann <jun.ann.lai@intel.com>
Signed-off-by: Song Yoong Siang <yoong.siang.song@intel.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20240424210256.3440903-1-anthony.l.nguyen@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-26 15:23:59 +02:00
Rafael J. Wysocki
bd700ba9ad thermal/debugfs: Avoid printing zero duration for mitigation events in progress
If a thermal mitigation event is in progress, its duration value has
not been updated yet, so 0 will be printed as the event duration by
tze_seq_show() which is confusing.

Avoid doing that by marking the beginning of the event with the
KTIME_MIN duration value and making tze_seq_show() compute the current
event duration on the fly, in which case '>' will be printed instead of
'=' in the event duration value field.

Similarly, for trip points that have been crossed on the down, mark
the end of mitigation with the KTIME_MAX timestamp value and make
tze_seq_show() compute the current duration on the fly for the trip
points still involved in the mitigation, in which cases the duration
value printed by it will be prepended with a '>' character.

Fixes: 7ef01f228c ("thermal/debugfs: Add thermal debugfs information for mitigation episodes")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Tested-by: Lukasz Luba <lukasz.luba@arm.com>
2024-04-26 15:01:56 +02:00
Rafael J. Wysocki
31a0fa0019 thermal/debugfs: Pass cooling device state to thermal_debug_cdev_add()
If cdev_dt_seq_show() runs before the first state transition of a cooling
device, it will not print any state residency information for it, even
though it might be reasonably expected to print residency information for
the initial state of the cooling device.

For this reason, rearrange the code to get the initial state of a cooling
device at the registration time and pass it to thermal_debug_cdev_add(),
so that the latter can create a duration record for that state which will
allow cdev_dt_seq_show() to print its residency information.

Fixes: 755113d767 ("thermal/debugfs: Add thermal cooling device debugfs information")
Reported-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Tested-by: Lukasz Luba <lukasz.luba@arm.com>
2024-04-26 15:01:56 +02:00
Rafael J. Wysocki
f4ae18fcb6 thermal/debugfs: Create records for cdev states as they get used
Because thermal_debug_cdev_state_update() only creates a duration record
for the old state of a cooling device, if its new state is used for the
first time, there will be no record for it and cdev_dt_seq_show() will
not print the duration information for it even though it contains code
to compute the duration value in that case.

Address this by making thermal_debug_cdev_state_update() create a
duration record for the new state if there is none.

Fixes: 755113d767 ("thermal/debugfs: Add thermal cooling device debugfs information")
Reported-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Tested-by: Lukasz Luba <lukasz.luba@arm.com>
2024-04-26 15:01:56 +02:00
Rafael J. Wysocki
8c882f172f Merge back earlier thermal core changes for v6.10. 2024-04-26 15:00:56 +02:00
Rafael J. Wysocki
d351eb0ab0 thermal/debugfs: Prevent use-after-free from occurring after cdev removal
Since thermal_debug_cdev_remove() does not run under cdev->lock, it can
run in parallel with thermal_debug_cdev_state_update() and it may free
the struct thermal_debugfs object used by the latter after it has been
checked against NULL.

If that happens, thermal_debug_cdev_state_update() will access memory
that has been freed already causing the kernel to crash.

Address this by using cdev->lock in thermal_debug_cdev_remove() around
the cdev->debugfs value check (in case the same cdev is removed at the
same time in two different threads) and its reset to NULL.

Fixes: 755113d767 ("thermal/debugfs: Add thermal cooling device debugfs information")
Cc :6.8+ <stable@vger.kernel.org> # 6.8+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
2024-04-26 14:57:50 +02:00
David Howells
c97f59e276
netfs: Fix the pre-flush when appending to a file in writethrough mode
In netfs_perform_write(), when the file is marked NETFS_ICTX_WRITETHROUGH
or O_*SYNC or RWF_*SYNC was specified, write-through caching is performed
on a buffered file.  When setting up for write-through, we flush any
conflicting writes in the region and wait for the write to complete,
failing if there's a write error to return.

The issue arises if we're writing at or above the EOF position because we
skip the flush and - more importantly - the wait.  This becomes a problem
if there's a partial folio at the end of the file that is being written out
and we want to make a write to it too.  Both the already-running write and
the write we start both want to clear the writeback mark, but whoever is
second causes a warning looking something like:

    ------------[ cut here ]------------
    R=00000012: folio 11 is not under writeback
    WARNING: CPU: 34 PID: 654 at fs/netfs/write_collect.c:105
    ...
    CPU: 34 PID: 654 Comm: kworker/u386:27 Tainted: G S ...
    ...
    Workqueue: events_unbound netfs_write_collection_worker
    ...
    RIP: 0010:netfs_writeback_lookup_folio

Fix this by making the flush-and-wait unconditional.  It will do nothing if
there are no folios in the pagecache and will return quickly if there are
no folios in the region specified.

Further, move the WBC attachment above the flush call as the flush is going
to attach a WBC and detach it again if it is not present - and since we
need one anyway we might as well share it.

Fixes: 41d8e7673a ("netfs: Implement a write-through caching option")
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202404161031.468b84f-oliver.sang@intel.com
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/2150448.1714130115@warthog.procyon.org.uk
Reviewed-by: Jeffrey Layton <jlayton@kernel.org>
cc: Eric Van Hensbergen <ericvh@kernel.org>
cc: Latchesar Ionkov <lucho@ionkov.net>
cc: Dominique Martinet <asmadeus@codewreck.org>
cc: Christian Schoenebeck <linux_oss@crudebyte.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
cc: v9fs@lists.linux.dev
cc: linux-afs@lists.infradead.org
cc: linux-cifs@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-04-26 14:56:18 +02:00
Colin Ian King
445237d67a drm/xe: Fix spelling mistake "forcebly" -> "forcibly"
There is a spelling mistake in a drm_dbg message. Fix it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240426094904.816033-1-colin.i.king@gmail.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2024-04-26 05:54:05 -07:00
Tengfei Fan
fde234239d dt-bindings: cpufreq: cpufreq-qcom-hw: Add SM4450 compatibles
Add compatible for EPSS CPUFREQ-HW on SM4450.

Signed-off-by: Tengfei Fan <quic_tengfan@quicinc.com>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-04-26 18:13:41 +05:30
Krishna Kurapati
3f12222a4b usb: dwc3: core: Fix compile warning on s390 gcc in dwc3_get_phy call
Recent commit introduced support for reading Multiport PHYs and
while doing so iterated over an integer variable which runs from
[0-254] in the worst case scenario. But S390 compiler treats it as a
warning and complains that the integer write to string can go to 11
characters. Fix this by modifying iterator variable to u8.

Suggested-by: Johan Hovold <johan@kernel.org>
Fixes: 30a46746ca ("usb: dwc3: core: Refactor PHY logic to support Multiport Controller")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404241215.Mib19Cu7-lkp@intel.com/
Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240426050512.57384-1-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-26 14:22:15 +02:00