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1,462,193 commits

Author SHA1 Message Date
Ming Lei
92734a4f3a selftests: ublk: add _ublk_del_dev helper function
Add _ublk_del_dev() to delete a specific ublk device by ID and
use it in all test scripts instead of calling UBLK_PROG directly.

Also remove unused _remove_ublk_devices() function.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-01-31 14:56:28 -07:00
Ming Lei
842b6520e5 selftests: ublk: refactor test_loop_08 into separate functions
Encapsulate each test case in its own function for better organization
and maintainability:

- _setup_device(): device and backfile initialization
- _test_fill_and_verify(): initial data population
- _test_corrupted_reftag(): reftag corruption detection test
- _test_corrupted_data(): data corruption detection test
- _test_bad_apptag(): apptag mismatch detection test

Also fix temp file creation to use ${UBLK_TEST_DIR}/fio_err_XXXXX instead of
creating in current directory.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-01-31 14:56:28 -07:00
Ming Lei
5af302a15a selftests: ublk: simplify UBLK_TEST_DIR handling
Remove intermediate TDIR variable and set UBLK_TEST_DIR directly
in _prep_test(). Remove default initialization since the directory
is created dynamically when tests run.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-01-31 14:56:28 -07:00
Alexei Starovoitov
4bebb99140 Merge branch 'bpf-arm64-add-fsession-support'
Leon Hwang says:

====================
Similar to commit 98770bd4e6 ("bpf,x86: add fsession support for x86_64"),
add fsession support on arm64.

Patch #1 adds bpf_jit_supports_fsession() to prevent fsession loading
on architectures that do not implement fsession support.

Patch #2 implements fsession support in the arm64 BPF JIT trampoline.

Patch #3 enables the relevant selftests on arm64, including get_func_ip,
and get_func_args.

All enabled tests pass on arm64:

 cd tools/testing/selftests/bpf
 ./test_progs -t fsession
 #136/1   fsession_test/fsession_test:OK
 #136/2   fsession_test/fsession_reattach:OK
 #136/3   fsession_test/fsession_cookie:OK
 #136     fsession_test:OK
 Summary: 1/3 PASSED, 0 SKIPPED, 0 FAILED

 ./test_progs -t get_func
 #138     get_func_args_test:OK
 #139     get_func_ip_test:OK
 Summary: 2/0 PASSED, 0 SKIPPED, 0 FAILED

Changes:
v4 -> v5:
* Address comment from Alexei:
  * Rename helper bpf_link_prog_session_cookie() to
    bpf_prog_calls_session_cookie().
* v4: https://lore.kernel.org/bpf/20260129154953.66915-1-leon.hwang@linux.dev/

v3 -> v4:
* Add a log when !bpf_jit_supports_fsession() in patch #1 (per AI).
* v3: https://lore.kernel.org/bpf/20260129142536.48637-1-leon.hwang@linux.dev/

v2 -> v3:
* Fix typo in subject and patch message of patch #1 (per AI and Chris).
* Collect Acked-by, and Tested-by from Puranjay, thanks.
* v2: https://lore.kernel.org/bpf/20260128150112.8873-1-leon.hwang@linux.dev/

v1 -> v2:
* Add bpf_jit_supports_fsession().
* v1: https://lore.kernel.org/bpf/20260127163344.92819-1-leon.hwang@linux.dev/
====================

Link: https://patch.msgid.link/20260131144950.16294-1-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-31 13:51:12 -08:00
Leon Hwang
7f10da2133 selftests/bpf: Enable get_func_args and get_func_ip tests on arm64
Allow get_func_args, and get_func_ip fsession selftests to run on arm64.

Acked-by: Puranjay Mohan <puranjay@kernel.org>
Tested-by: Puranjay Mohan <puranjay@kernel.org>
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260131144950.16294-4-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-31 13:51:04 -08:00
Leon Hwang
e3aa56b3ac bpf, arm64: Add fsession support
Implement fsession support in the arm64 BPF JIT trampoline.

Extend the trampoline stack layout to store function metadata and
session cookies, and pass the appropriate metadata to fentry and
fexit programs. This mirrors the existing x86 behavior and enables
session cookies on arm64.

Acked-by: Puranjay Mohan <puranjay@kernel.org>
Tested-by: Puranjay Mohan <puranjay@kernel.org>
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260131144950.16294-3-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-31 13:51:04 -08:00
Leon Hwang
8798902f2b bpf: Add bpf_jit_supports_fsession()
The added fsession does not prevent running on those architectures, that
haven't added fsession support.

For example, try to run fsession tests on arm64:

test_fsession_basic:PASS:fsession_test__open_and_load 0 nsec
test_fsession_basic:PASS:fsession_attach 0 nsec
check_result:FAIL:test_run_opts err unexpected error: -14 (errno 14)

In order to prevent such errors, add bpf_jit_supports_fsession() to guard
those architectures.

Fixes: 2d419c4465 ("bpf: add fsession support")
Acked-by: Puranjay Mohan <puranjay@kernel.org>
Tested-by: Puranjay Mohan <puranjay@kernel.org>
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260131144950.16294-2-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-31 13:51:04 -08:00
Paul Chaignon
f0b5b3d6b5 selftests/bpf: Test access from RO map from xdp_store_bytes
This new test simply checks that helper bpf_xdp_store_bytes can
successfully read from a read-only map.

Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Link: https://lore.kernel.org/r/4fdb934a713b2d7cf133288c77f6cfefe9856440.1769875479.git.paul.chaignon@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-31 13:49:43 -08:00
Paul Chaignon
6557f1565d bpf: Fix bpf_xdp_store_bytes proto for read-only arg
While making some maps in Cilium read-only from the BPF side, we noticed
that the bpf_xdp_store_bytes proto is incorrect. In particular, the
verifier was throwing the following error:

  ; ret = ctx_store_bytes(ctx, l3_off + offsetof(struct iphdr, saddr),
                          &nat->address, 4, 0);
  635: (79) r1 = *(u64 *)(r10 -144)     ; R1=ctx() R10=fp0 fp-144=ctx()
  636: (b4) w2 = 26                     ; R2=26
  637: (b4) w4 = 4                      ; R4=4
  638: (b4) w5 = 0                      ; R5=0
  639: (85) call bpf_xdp_store_bytes#190
  write into map forbidden, value_size=6 off=0 size=4

nat comes from a BPF_F_RDONLY_PROG map, so R3 is a PTR_TO_MAP_VALUE.
The verifier checks the helper's memory access to R3 in
check_mem_size_reg, as it reaches ARG_CONST_SIZE argument. The third
argument has expected type ARG_PTR_TO_UNINIT_MEM, which includes the
MEM_WRITE flag. The verifier thus checks for a BPF_WRITE access on R3.
Given R3 points to a read-only map, the check fails.

Conversely, ARG_PTR_TO_UNINIT_MEM can also lead to the helper reading
from uninitialized memory.

This patch simply fixes the expected argument type to match that of
bpf_skb_store_bytes.

Fixes: 3f364222d0 ("net: xdp: introduce bpf_xdp_pointer utility routine")
Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Link: https://lore.kernel.org/r/9fa3c9f72d806e82541071c4df88b8cba28ad6a9.1769875479.git.paul.chaignon@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-31 13:49:43 -08:00
Jakub Kicinski
a22f57757f linux-can-next-for-6.20-20260131
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Merge tag 'linux-can-next-for-6.20-20260131' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2026-01-31

This first 2 patches are by Biju Das, target the rcar_canfd driver and
add support for FD-only mode.

Lad Prabhakar's patches, also for the rcar_canfd driver add support
for the RZ/T2H SoC.

The last 2 patches are by Michael Tretter and me, target the sja1000
driver and clean up the CAN state handling.

* tag 'linux-can-next-for-6.20-20260131' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next:
  can: sja1000: sja1000_err(): use error counter for error state
  can: sja1000: sja1000_err(): make use of sja1000_get_berr_counter() to read error counters
  can: rcar_canfd: Add RZ/T2H support
  dt-bindings: can: renesas,rcar-canfd: Document RZ/T2H and RZ/N2H SoCs
  dt-bindings: can: renesas,rcar-canfd: Document RZ/V2H(P) and RZ/V2N SoCs
  dt-bindings: can: renesas,rcar-canfd: Specify reset-names
  can: rcar_canfd: Add support for FD-Only mode
  dt-bindings: can: renesas,rcar-canfd: Document renesas,fd-only property
====================

Link: https://patch.msgid.link/20260131101512.1958907-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-31 12:59:48 -08:00
Jakub Kicinski
fdf3f6800b net: don't touch dev->stats in BPF redirect paths
Gal reports that BPF redirect increments dev->stats.tx_errors
on failure. This is not correct, most modern drivers completely
ignore dev->stats so these drops will be invisible to the user.
Core code should use the dedicated core stats which are folded
into device stats in dev_get_stats().

Note that we're switching from tx_errors to tx_dropped.
Core only has tx_dropped, hence presumably users already expect
that counter to increment for "stack" Tx issues.

Reported-by: Gal Pressman <gal@nvidia.com>
Link: https://lore.kernel.org/c5df3b60-246a-4030-9c9a-0a35cd1ca924@nvidia.com
Fixes: b4ab314149 ("bpf: Add redirect_neigh helper as redirect drop-in")
Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260130033827.698841-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-31 12:35:27 -08:00
Linus Torvalds
162b42445b IOMMU Fixes for Linux v6.19-rc7
Including:
 
 	- Fix a performance regression cause by new Generic
 	  IO-Page-Table code detected in Intel VT-d driver.
 
 	- Command queue flushing fix for NVidia version of the
 	  ARM-SMMU-v3
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Merge tag 'iommu-fixes-v6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Pull iommu fixes from Joerg Roedel:

 - Fix a performance regression cause by the new Generic IO-Page-Table
   code detected in Intel VT-d driver

 - Command queue flushing fix for NVidia version of the ARM-SMMU-v3

* tag 'iommu-fixes-v6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
  iommu/tegra241-cmdqv: Reset VCMDQ in tegra241_vcmdq_hw_init_user()
  iommupt: Only cache flush memory changed by unmap
2026-01-31 09:40:13 -08:00
Linus Torvalds
d097a07831 EFI fixes for v6.19 #3
- Fix regression in efivarfs error propagation
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Merge tag 'efi-fixes-for-v6.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi

Pull EFI fix from Ard Biesheuvel:

 - Fix regression in efivarfs error propagation

* tag 'efi-fixes-for-v6.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  efivarfs: fix error propagation in efivar_entry_get()
2026-01-31 08:57:16 -08:00
Linus Torvalds
9827b1fb55 sound fixes for 6.19-rc8
Just a few device-specific fixes; all small and mostly trivial,
 should be pretty safe to take at the late stage.
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Merge tag 'sound-6.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Just a few device-specific fixes; all small and mostly trivial, should
  be pretty safe to take at the late stage"

* tag 'sound-6.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: sof_sdw: Add a quirk for Lenovo laptop using sidecar amps with cs42l43
  ASoC: Intel: sof_es8336: fix headphone GPIO logic inversion
  ASoC: amd: yc: Add DMI quirk for Acer TravelMate P216-41-TCO
  ASoC: soc-acpi-intel-ptl-match: fix name_prefix of rt1320-2
  ALSA: hda/realtek: Add quirk for Inspur S14-G1
  ALSA: hda/realtek: fix right sounds and mute/micmute LEDs for HP machine
  ALSA: hda/realtek: Really fix headset mic for TongFang X6AR55xU.
  ALSA: hda/realtek - fixed speaker no sound
  ASoC: amd: yc: Add ASUS ExpertBook PM1503CDA to quirks list
  ASoC: fsl: imx-card: Do not force slot width to sample width
  ASoC: dt-bindings: fsl,sai: Add support for i.MX952 platform
  ASoC: cs35l45: Corrects ASP_TX5 DAPM widget channel
2026-01-31 08:52:41 -08:00
Linus Torvalds
44f4119c7c Kbuild fixes for 6.19, round 3
- kbuild: rpm-pkg: Generate debuginfo package manually, allowing
    signed kernel modules in rpm package, again
 
  - kbuild: Fix permissions of modules.builtin.modinfo
 
  - kbuild: Do not run kernel-doc when building external modules
 
 Cc: Ethan Zuo <yuxuan.zuo@outlook.com>
 Cc: Holger Kiehl <Holger.Kiehl@dwd.de>
 Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
 Cc: Nathan Chancellor <nathan@kernel.org>
 Cc: Randy Dunlap <rdunlap@infradead.org>
 Cc: Rong Zhang <i@rong.moe>
 Cc: Uday Shankar <ushankar@purestorage.com>
 Cc: linux-kbuild@vger.kernel.org
 Cc: linux-kernel@vger.kernel.org
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Merge tag 'kbuild-fixes-6.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

Pull Kbuild fixes from Nicolas Schier:

 - Generate rpm-pkg debuginfo package manually, allowing signed kernel
   modules in rpm package, again

 - Fix permissions of modules.builtin.modinfo

 - Do not run kernel-doc when building external modules

* tag 'kbuild-fixes-6.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
  kbuild: Do not run kernel-doc when building external modules
  kbuild: Fix permissions of modules.builtin.modinfo
  kbuild: rpm-pkg: Generate debuginfo package manually
2026-01-31 08:21:32 -08:00
Thomas Weißschuh
11c5802d28 hwmon: (cros_ec) Move temperature channel params to a macro
An upcoming change will add more channel parameters.
This leads to a lot of churn and very long lines.

Use a macro to encapsulate all of the shared values.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20260118-cros_ec-hwmon-pwm-v2-3-77eb1709b031@weissschuh.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:33 -08:00
Thomas Weißschuh
bd7a455aee hwmon: (cros_ec) Add support for fan target speed
Use EC_CMD_PWM_GET_FAN_TARGET_RPM to retrieve the target fan speed.
The EC only supports this for the first fan.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20260118-cros_ec-hwmon-pwm-v2-2-77eb1709b031@weissschuh.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:33 -08:00
Thomas Weißschuh
18ccf48656 hwmon: (cros_ec) Split up supported features in the documentation
The wall of text of supported features is hard to read and messy to
extend. Split it into a definition list with an explanations for each
supported feature.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20260118-cros_ec-hwmon-pwm-v2-1-77eb1709b031@weissschuh.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:33 -08:00
Mayank Mahajan
51521432e9 hwmon: (tmp108) Add P3T1035 and P3T2030 support
Update the hwmon driver documentation for sensors: P3T1035 and P3T2030.

Signed-off-by: Mayank Mahajan <mayankmahajan.x@nxp.com>
Link: https://lore.kernel.org/r/20260119040459.2898998-3-mayankmahajan.x@nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:33 -08:00
Mayank Mahajan
72037c4128 hwmon: (tmp108) Add support for P3T1035 and P3T2030
Add support for the P3T1035 & P3T2030 temperature sensor. While mostly
compatible with the TMP108, P3T1035 uses an 8-bit configuration register
instead of the 16-bit layout used by TMP108. Updated driver to handle
this difference during configuration read/write.

Signed-off-by: Mayank Mahajan <mayankmahajan.x@nxp.com>
Link: https://lore.kernel.org/r/20260119040459.2898998-2-mayankmahajan.x@nxp.com
[groeck: Reordered include files to retain alphabetic order]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:33 -08:00
Mayank Mahajan
9f3f040f7b dt-bindings: hwmon: ti,tmp108: Add P3T1035,P3T2030
Document the NXP P3T1035 and P3T2030 compatibles in TMP108.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Mayank Mahajan <mayankmahajan.x@nxp.com>
Link: https://lore.kernel.org/r/20260119040459.2898998-1-mayankmahajan.x@nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:33 -08:00
Charles Hsu
64824861eb hwmon: pmbus: add support for STEF48H28
Add support for STEF48H28 hot-swap controller.

Signed-off-by: Charles Hsu <hsu.yungteng@gmail.com>
Link: https://lore.kernel.org/r/20260126063712.1049025-2-hsu.yungteng@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Charles Hsu
418a1828ca dt-bindings: hwmon: add STEF48H28
Add device tree bindings for the hot-swap controller STEF48H28.

Signed-off-by: Charles Hsu <hsu.yungteng@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20260126063712.1049025-1-hsu.yungteng@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Felix Gu
4923bbff0b hwmon: (nct7363) Fix a resource leak in nct7363_present_pwm_fanin
When calling of_parse_phandle_with_args(), the caller is responsible
to call of_node_put() to release the reference of device node.
In nct7363_present_pwm_fanin, it does not release the reference,
causing a resource leak.

Signed-off-by: Felix Gu <gu_0233@qq.com>
Link: https://lore.kernel.org/r/tencent_9717645269E4C07D3D131F52201E12E5E10A@qq.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Felix Gu
2954ce672b hwmon: (emc2305) Fix a resource leak in emc2305_of_parse_pwm_child
When calling of_parse_phandle_with_args(), the caller is responsible
to call of_node_put() to release the reference of device node.
In emc2305_of_parse_pwm_child, it does not release the reference,
causing a resource leak.

Signed-off-by: Felix Gu <gu_0233@qq.com>
Link: https://lore.kernel.org/r/tencent_738BA80BBF28F3440301EEE6F9E470165105@qq.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Cryolitia PukNgae
13bf63b931 hwmon: (gpd-fan) add support for Micro PC 2
GPD Micro PC 2 is a mobile productivity device with 7-inch screen and
abundant ports.[1]

Link: https://www.gpd.hk/gpdmicropc2345345345 #1
Co-developed-by: kylon <3252255+kylon@users.noreply.github.com>
Signed-off-by: kylon <3252255+kylon@users.noreply.github.com>
Tested-by: kylon <3252255+kylon@users.noreply.github.com>
Link: https://github.com/Cryolitia/gpd-fan-driver/pull/23
Signed-off-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Link: https://lore.kernel.org/r/20251222-mpc2-v1-1-695d8d351cc1@uniontech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Laveesh Bansal
bcd5120ad4 hwmon: (coretemp) Add TjMax for Silvermont through Tremont Atoms
Add fallback TjMax values for Intel Atom processors based on Silvermont,
Airmont, Goldmont, and Tremont microarchitectures. These processors
support MSR_IA32_TEMPERATURE_TARGET for reading TjMax directly, so these
table entries serve as fallback values only when the MSR read fails
(e.g., in some virtualization scenarios).

Added processors and TjMax values:

- INTEL_ATOM_SILVERMONT (0x37, Bay Trail):
  - Stepping 9 (E38xx embedded): 110C
  - Other steppings (Z37xx tablet): 90C
  Stepping identified from Intel E3800 Specification Update.

- INTEL_ATOM_SILVERMONT_MID (0x4a, Merrifield): 90C

- INTEL_ATOM_SILVERMONT_MID2 (0x5a, Moorefield): 90C

- INTEL_ATOM_AIRMONT (0x4c, Cherry Trail): 90C

- INTEL_ATOM_GOLDMONT (0x5c, Apollo Lake): 105C

- INTEL_ATOM_GOLDMONT_PLUS (0x7a, Gemini Lake): 105C

- INTEL_ATOM_TREMONT (0x96, Elkhart Lake): 105C

- INTEL_ATOM_TREMONT_L (0x9c, Jasper Lake): 105C

Not included (MSR reads work reliably, server/specialized chips):
- INTEL_ATOM_SILVERMONT_D (Avoton): Server, Tcase 97C
- INTEL_ATOM_GOLDMONT_D (Denverton): Server, Tcase 82C
- INTEL_ATOM_AIRMONT_NP (Lightning Mountain): Network processor
- INTEL_ATOM_TREMONT_D (Jacobsville): Server
- INTEL_ATOM_GRACEMONT (Alder Lake-N): Very new, MSR works

Reference: Intel datasheets and ARK processor specifications
- Z3600/Z3700 datasheet: https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/atom-z36xxx-z37xxx-datasheet-vol-1.pdf
- E3845 ARK: https://www.intel.com/content/www/us/en/products/sku/78475/intel-atom-processor-e3845-2m-cache-1-91-ghz/specifications.html
- E3800 Spec Update: https://community.intel.com/cipcp26785/attachments/cipcp26785/embedded-atom-processors/4708/1/600834-329901-intel-atom-processor-e3800-product-family-su-rev015.pdf

Signed-off-by: Laveesh Bansal <laveeshb@laveeshbansal.com>
Link: https://lore.kernel.org/r/20260106155426.547872-3-laveeshb@laveeshbansal.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Laveesh Bansal
f6702aa05a Documentation: hwmon: coretemp: Update supported CPUs and TjMax values
Update the coretemp documentation to reflect current driver capabilities:

- Extend the supported CPU model list to include Atom processors from
  Bonnell through Jasper Lake, maintaining the original format with
  model numbers and adding X86_FEATURE_DTHERM as the actual detection
  mechanism. Added models: 0x37 (Bay Trail), 0x4a (Merrifield),
  0x4c (Cherry Trail), 0x5a (Moorefield), 0x5c (Apollo Lake),
  0x7a (Gemini Lake), 0x96 (Elkhart Lake), 0x9c (Jasper Lake)

- Update the description to note that per-package temperature sensing
  is available on Sandy Bridge and all newer processors

- Clarify that TjMax is read from MSR_IA32_TEMPERATURE_TARGET on modern
  CPUs (Nehalem and newer)

- Add TjMax values for newer Atom processor families to Appendix A:
  - 22nm Silvermont/Bay Trail: E38xx at 110C, Z37xx at 90C
  - 22nm Silvermont/Moorefield: Z35xx at 90C
  - 14nm Airmont/Cherry Trail: Z8xxx at 90C
  - 14nm Goldmont/Apollo Lake: 105C
  - 14nm Goldmont Plus/Gemini Lake: 105C
  - 10nm Tremont/Elkhart Lake: 105C
  - 10nm Tremont/Jasper Lake: 105C

TjMax values obtained from Intel ARK and official datasheets:
- E3845: https://www.intel.com/content/www/us/en/products/sku/78475/intel-atom-processor-e3845-2m-cache-1-91-ghz/specifications.html
- Z3600/Z3700: https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/atom-z36xxx-z37xxx-datasheet-vol-1.pdf

Signed-off-by: Laveesh Bansal <laveeshb@laveeshbansal.com>
Link: https://lore.kernel.org/r/20260106155426.547872-2-laveeshb@laveeshbansal.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Rob Herring (Arm)
75cf411b02 dt-bindings: hwmon: Convert aspeed,ast2400-pwm-tacho to DT schema
Convert the ASpeed fan controller binding to DT schema format.

The '#size-cells' value is 0 rather 1.

Some users define more that 8 fan nodes where 2 fans share a PWM. The
driver seems to let the 2nd fan just overwrite the 1st one. That also
creates some addressing errors in the DT (duplicate addresses and wrong
unit-addresses).

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20260109-dev-dt-warnings-hwmon-v1-1-f2a84cdb0e1b@codeconstruct.com.au
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Anj Duvnjak
c0fa7879c9 hwmon: (nct6683) Add customer ID for ASRock Z590 Taichi
Add support for customer ID 0x1621 found on ASRock Z590 Taichi
boards using the Nuvoton NCT6686D embedded controller.

This allows the driver to instantiate without requiring the
force=1 module parameter.

Tested on two separate ASRock Z590 Taichi boards, both with
EC firmware version 1.0 build 01/25/21.

Signed-off-by: Anj Duvnjak <avian@extremenerds.net>
Link: https://lore.kernel.org/r/20251222220942.10762-1-avian@extremenerds.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Ji-Ze Hong (Peter Hong)
e4a3d6f79c hwmon: (f71882fg) Add F81968 support
Add hardware monitoring support for the Fintek F81968 Super I/O chip.
It is fully compatible with F81866.

Several products share compatibility with the F81866. To better distinguish
between them, ensure that the Product ID is displayed when the device is
probed.

Signed-off-by: Ji-Ze Hong (Peter Hong) <peter_hong@fintek.com.tw>
Link: https://lore.kernel.org/r/20251223051040.10227-1-peter_hong@fintek.com.tw
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Krzysztof Kozlowski
6846757d4c hwmon: (nct7363) Simplify with scoped for each OF child loop
Use scoped for-each loop when iterating over device nodes to make code a
bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251224110702.61746-6-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Krzysztof Kozlowski
0689522a92 hwmon: (max6639) Simplify with scoped for each OF child loop
Use scoped for-each loop when iterating over device nodes to make code a
bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251224110702.61746-5-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Krzysztof Kozlowski
bfd0103be5 hwmon: (emc2305) Simplify with scoped for each OF child loop
Use scoped for-each loop when iterating over device nodes to make code a
bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251224110702.61746-4-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:32 -08:00
Szymon Wilczek
d4168cb6ae hwmon: (acpi_power_meter) Replace deprecated strcpy() with strscpy()
strcpy() performs no bounds checking on the destination buffer, which
could result in linear overflows beyond the end of the buffer. Although
the source strings here are compile-time constants that fit within the
destination buffers, using strscpy() is the preferred approach as it
provides bounds checking and aligns with the kernel's deprecated API
guidelines.

This change converts the remaining strcpy() calls to strscpy(), matching
the pattern already used throughout other ACPI drivers in
drivers/acpi/*.c.

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy
Signed-off-by: Szymon Wilczek <szymonwilczek@gmx.com>
Reviewed-by: lihuisong@huawei.com
Link: https://lore.kernel.org/r/20251220173041.377376-1-szymonwilczek@gmx.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Denis Pauk
246167b17c hwmon: (nct6775) Add ASUS Pro WS WRX90E-SAGE SE
Boards Pro WS WRX90E-SAGE SE has got a nct6775 chip, but by default there's
no use of it because of resource conflict with WMI method.

Add the board to the WMI monitoring list.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=204807
Signed-off-by: Denis Pauk <pauk.denis@gmail.com>
Tested-by: Marcus <shoes2ga@gmail.com>
Link: https://lore.kernel.org/r/20251231155316.2048-1-pauk.denis@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Jai Kith
194e725cc7 hwmon: (asus-ec-sensors) Add VRM temperature for Pro WS WRX90E-SAGE SE
Add VRM_E (0x33) and VRM_W (0x34) temperature sensor definitions to
sensors_family_amd_wrx_90 and enable them in the board config.

Signed-off-by: Jai Kith <kithfx@gmail.com>
Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
Link: https://lore.kernel.org/r/20260103085740.10644-1-eugene.shalygin@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Wensheng Wang
a9c4ac630c hwmon: (mp2925) Add vid offset for vid mode
In vid mode, the mp2925 vout telemetry has 49 vid step offset, add
vid offset for this.

Signed-off-by: Wensheng Wang <wenswang@yeah.net>
Link: https://lore.kernel.org/r/20260106061348.170509-1-wenswang@yeah.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Armin Wolf
46c3e87a79 hwmon: (dell-smm) Add support for Dell OptiPlex 7080
The Dell OptiPlex 7080 supports the legacy SMM interface for reading
sensors and performing fan control. Whitelist this machine so that
this driver loads automatically.

Closes: https://github.com/Wer-Wolf/i8kutils/issues/16
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Acked-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20260104000654.6406-1-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Yuxi Wang
ca2cf35544 hwmon: (pmbus) Add mp5926 driver
Add support for mps mp5926.

Signed-off-by: Yuxi Wang <Yuxi.Wang@monolithicpower.com>
Link: https://lore.kernel.org/r/20251219055413.1661-3-Yuxi.Wang@monolithicpower.com
[groeck: Use consistent comment style, and use return value from dev_err_probe()]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Yuxi Wang
d491cd8e1e dt-bindings: hwmon: Add mps mp5926 driver bindings
Add a device tree bindings for mp5926 device.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Yuxi Wang <Yuxi.Wang@monolithicpower.com>
Link: https://lore.kernel.org/r/20251219055413.1661-2-Yuxi.Wang@monolithicpower.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Kari Argillander
141d300252 hwmon: Use sysfs_emit in show function callbacks
Use sysfs_emit() over sprintf() to prevent potential overflows. In
hwmon_attr_show() that is totally impossible but looking other places
many still use sysfs_emit().

Also according Documentation/filesystems/sysfs.rst code should use
sysfs_emit().

Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Link: https://lore.kernel.org/r/20251219-hwmon-fixes-v1-2-21b29097ea3b@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Kari Argillander
aa8126b914 hwmon: Fix wrong return errno in *sanitize_name()
Currently if user of *sanitize_name() function gives nullptr for name
they get's ENOMEM. Logically it should be EINVAL.

Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Link: https://lore.kernel.org/r/20251219-hwmon-fixes-v1-1-21b29097ea3b@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Vaibhav Gupta
9ef5c1065c hwmon: (fam15h_power) Use generic power management
Switch to the generic PCI power management framework and remove legacy
.resume() callback. With the generic framework, the
standard PCI related work like:
        - pci_save/restore_state()
        - pci_enable/disable_device()
        - pci_set_power_state()
is handled by the PCI core and this driver should implement only
device specific operations in its respective callback function.

Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Link: https://lore.kernel.org/r/20251216181401.598273-1-vaibhavgupta40@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Robert Marko
bc5da9886a dt-bindings: hwmon: sparx5: add microchip,lan9691-temp
Document LAN969x hwmon temperature sensor compatible.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20251215163820.1584926-15-robert.marko@sartura.hr
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Antoni Pokusinski
1fe80112e4 hwmon: (sht3x) add support for SHT85
SHT85 is a temperature and humidity sensor with the same interface
as SHT3x.

Signed-off-by: Antoni Pokusinski <apokusinski01@gmail.com>
Link: https://lore.kernel.org/r/20251211185842.66084-1-apokusinski01@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Robert McIntyre
af7e57d444 hwmon: (asus-ec-sensors) add Pro WS TRX50-SAGE WIFI A
Adding support for Pro WS TRX50-SAGE WIFI A, which is identical
sensors-wise to Pro WS TRX50-SAGE WIFI

Signed-off-by: Robert McIntyre <rjmcinty@hotmail.com>
Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
Link: https://lore.kernel.org/r/20251213200531.259435-4-eugene.shalygin@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:31 -08:00
Reis Holmes
7da5daed35 hwmon: (asus-ec-sensors) add ROG MAXIMUS X HERO
Add support for ROG MAXIMUS X HERO. The support is incomplete because
the second EC, which provides part of the data, is inaccessible via the
kernel ec module.

Signed-off-by: Reis Holmes <reisholmes@pm.me>
Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
Link: https://lore.kernel.org/r/20251213200531.259435-3-eugene.shalygin@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:30 -08:00
Gui-Dong Han
d0a0960602 hwmon: submitting-patches: Explain race conditions caused by calculations in macros
The current documentation advises against calculations in macros
primarily to avoid code obfuscation. It misses the risk of concurrency
issues.

Add a note explaining that macros evaluating arguments multiple times
can lead to race conditions when accessing shared data.

Link: https://lore.kernel.org/all/CALbr=LYJ_ehtp53HXEVkSpYoub+XYSTU8Rg=o1xxMJ8=5z8B-g@mail.gmail.com/
Signed-off-by: Gui-Dong Han <hanguidong02@gmail.com>
Link: https://lore.kernel.org/r/20251202175536.12774-1-hanguidong02@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:38:30 -08:00
Rafael J. Wysocki
615901b57b hwmon: (acpi_power_meter) Fix deadlocks related to acpi_power_meter_notify()
The acpi_power_meter driver's .notify() callback function,
acpi_power_meter_notify(), calls hwmon_device_unregister() under a lock
that is also acquired by callbacks in sysfs attributes of the device
being unregistered which is prone to deadlocks between sysfs access and
device removal.

Address this by moving the hwmon device removal in
acpi_power_meter_notify() outside the lock in question, but notice
that doing it alone is not sufficient because two concurrent
METER_NOTIFY_CONFIG notifications may be attempting to remove the
same device at the same time.  To prevent that from happening, add a
new lock serializing the execution of the switch () statement in
acpi_power_meter_notify().  For simplicity, it is a static mutex
which should not be a problem from the performance perspective.

The new lock also allows the hwmon_device_register_with_info()
in acpi_power_meter_notify() to be called outside the inner lock
because it prevents the other notifications handled by that function
from manipulating the "resource" object while the hwmon device based
on it is being registered.  The sending of ACPI netlink messages from
acpi_power_meter_notify() is serialized by the new lock too which
generally helps to ensure that the order of handling firmware
notifications is the same as the order of sending netlink messages
related to them.

In addition, notice that hwmon_device_register_with_info() may fail
in which case resource->hwmon_dev will become an error pointer,
so add checks to avoid attempting to unregister the hwmon device
pointer to by it in that case to acpi_power_meter_notify() and
acpi_power_meter_remove().

Fixes: 16746ce8ad ("hwmon: (acpi_power_meter) Replace the deprecated hwmon_device_register")
Closes: https://lore.kernel.org/linux-hwmon/CAK8fFZ58fidGUCHi5WFX0uoTPzveUUDzT=k=AAm4yWo3bAuCFg@mail.gmail.com/
Reported-by: Jaroslav Pulchart <jaroslav.pulchart@gooddata.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-01-31 07:36:57 -08:00