Documentation: tracing: Add PCI controller event documentation

The PCI controller tracepoint, pcie_ltssm_state_transition, monitors the
LTSSM state transition and data rate changes for debugging pur

Documentation: tracing: Add PCI controller event documentation

The PCI controller tracepoint, pcie_ltssm_state_transition, monitors the
LTSSM state transition and data rate changes for debugging purposes. Add
documentation for it.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
[mani: added MAINTAINERS entry]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://patch.msgid.link/1774403912-210670-3-git-send-email-shawn.lin@rock-chips.com

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PCI: trace: Add PCI controller tracepoint feature

Some PCI controllers may provide debug functionalities to track PCI bus
activities like LTSSM state transitions and data rate changes. These will
be

PCI: trace: Add PCI controller tracepoint feature

Some PCI controllers may provide debug functionalities to track PCI bus
activities like LTSSM state transitions and data rate changes. These will
be very useful for debugging PCI link specific issues such as endpoint not
getting detected or performance issues.

Hence, implement the PCI controller tracepoint feature for recording LTSSM
state transitions and data rate changes.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
[mani: commit log and maintainers entry]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://patch.msgid.link/1774403912-210670-2-git-send-email-shawn.lin@rock-chips.com

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MAINTAINERS, mailmap: Change Ulf Hansson's email

Change my email in MAINTAINERS and add a few entries in mailmap to start
using ulfh@kernel.org.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

gpio: Add Intel Nova Lake ACPI GPIO events driver

This driver provides support for new way of handling platform events,
through the use of GPIO-signaled ACPI events. This mechanism is used on
Intel

gpio: Add Intel Nova Lake ACPI GPIO events driver

This driver provides support for new way of handling platform events,
through the use of GPIO-signaled ACPI events. This mechanism is used on
Intel client platforms released in 2026 and later, starting with Intel
Nova Lake.

Signed-off-by: Alan Borzeszkowski <alan.borzeszkowski@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260401174526.60881-1-alan.borzeszkowski@linux.intel.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>

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selftests: net: add tests for PPP

Add ping and iperf3 tests for ppp_async.c and pppoe.c.

Signed-off-by: Qingfang Deng <qingfang.deng@linux.dev>
Link: https://patch.msgid.link/20260403034908.30017-1

selftests: net: add tests for PPP

Add ping and iperf3 tests for ppp_async.c and pppoe.c.

Signed-off-by: Qingfang Deng <qingfang.deng@linux.dev>
Link: https://patch.msgid.link/20260403034908.30017-1-qingfang.deng@linux.dev
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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MAINTAINERS: add lib/tests/slub_kunit.c to SLAB ALLOCATOR section

The slub_kunit module has been maintained by SLAB ALLOCATOR folks,
but is missing in the MAINTAINERS file. Add the missing entry.

A

MAINTAINERS: add lib/tests/slub_kunit.c to SLAB ALLOCATOR section

The slub_kunit module has been maintained by SLAB ALLOCATOR folks,
but is missing in the MAINTAINERS file. Add the missing entry.

Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Harry Yoo (Oracle) <harry@kernel.org>
Acked-by: SeongJae Park <sj@kernel.org>
Link: https://patch.msgid.link/20260406090907.11710-2-harry@kernel.org
Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>

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Merge tag 'icc-7.1-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-misc-next

Georgi writes:

This pull request contains the interconnect changes for the 7.1-rc1
merge

Merge tag 'icc-7.1-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-misc-next

Georgi writes:

This pull request contains the interconnect changes for the 7.1-rc1
merge window. They are listed below:

- New driver for Mahua SoC
- New driver for Eliza SoC
- Enable QoS support for QCS8300 and QCS615 SoCs
- Add L3 cache scaling compatibles for SM8550 and Eliza SoCs
- Fix multiple issues in the msm8974 driver
- Fix kfree mismatch
- Misc cleanups
- Add maintainer entry for the interconnect KUnit tests

Signed-off-by: Georgi Djakov <djakov@kernel.org>

* tag 'icc-7.1-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/djakov/icc: (22 commits)
MAINTAINERS: Add interconnect kunit test entry
interconnect: debugfs: fix devm_kstrdup and kfree mismatch
interconnect: qcom: msm8974: expand DEFINE_QNODE macros
interconnect: qcom: msm8974: switch to the main icc-rpm driver
interconnect: qcom: let platforms declare their bugginess
interconnect: qcom: define OCMEM bus resource
interconnect: qcom: icc-rpm: allow overwriting get_bw callback
interconnect: qcom: drop unused is_on flag
dt-bindings: interconnect: qcom,msm8974: use qcom,rpm-common
dt-bindings: interconnect: qcom,msm8974: drop bus clocks
interconnect: qcom: qcs615: enable QoS configuration
dt-bindings: interconnect: qcom,qcs615-rpmh: add clocks property to enable QoS
interconnect: qcom: Add Eliza interconnect provider driver
dt-bindings: interconnect: document the RPMh Network-On-Chip interconnect in Eliza SoC
dt-bindings: interconnect: OSM L3: Add Eliza EPSS L3 compatible
interconnect: qcom: De-acronymize SoC names
dt-bindings: interconnect: qcom,glymur-rpmh: De-acronymize SoC name
dt-bindings: interconnect: OSM L3: Document sm8550 OSM L3 compatible
interconnect: qcom: qcs8300: enable QoS configuration
dt-bindings: interconnect: qcom,qcs8300-rpmh: add clocks property to enable QoS
...

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eth: remove the driver for acenic / tigon1&2

The entire git history for this driver looks like tree-wide
and automated cleanups. There's even more coming now with
AI, so let's try to delete it inste

eth: remove the driver for acenic / tigon1&2

The entire git history for this driver looks like tree-wide
and automated cleanups. There's even more coming now with
AI, so let's try to delete it instead.

Acked-by: Jes Sorensen <jes@trained-monkey.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20260403220501.2263835-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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ACPI: APEI: GHES: Add NVIDIA vendor CPER record handler

Add support for decoding NVIDIA-specific CPER sections delivered via
the APEI GHES vendor record notifier chain. NVIDIA hardware generates
ven

ACPI: APEI: GHES: Add NVIDIA vendor CPER record handler

Add support for decoding NVIDIA-specific CPER sections delivered via
the APEI GHES vendor record notifier chain. NVIDIA hardware generates
vendor-specific CPER sections containing error signatures and diagnostic
register dumps. This implementation registers a notifier_block with the
GHES vendor record notifier and decodes these sections, printing error
details via dev_info().

The driver binds to ACPI device NVDA2012, present on NVIDIA server
platforms. The NVIDIA CPER section contains a fixed header with error
metadata (signature, error type, severity, socket) followed by
variable-length register address-value pairs for hardware diagnostics.

This work is based on libcper [1].

Example output:
nvidia-ghes NVDA2012:00: NVIDIA CPER section, error_data_length: 544
nvidia-ghes NVDA2012:00: signature: CMET-INFO
nvidia-ghes NVDA2012:00: error_type: 0
nvidia-ghes NVDA2012:00: error_instance: 0
nvidia-ghes NVDA2012:00: severity: 3
nvidia-ghes NVDA2012:00: socket: 0
nvidia-ghes NVDA2012:00: number_regs: 32
nvidia-ghes NVDA2012:00: instance_base: 0x0000000000000000
nvidia-ghes NVDA2012:00: register[0]: address=0x8000000100000000 value=0x0000000100000000

https://github.com/openbmc/libcper/commit/683e055061ce [1]
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Kai-Heng Feng <kaihengf@nvidia.com>
[ rjw: Changelog edits ]
Link: https://patch.msgid.link/20260330094203.38022-4-kaihengf@nvidia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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hwspinlock: u8500: delete driver

The U8500 platform was converted to DT around 2013 and is DT only
meanwhile. This driver has never been converted to a DT driver, so it
clearly hasn't been used sinc

hwspinlock: u8500: delete driver

The U8500 platform was converted to DT around 2013 and is DT only
meanwhile. This driver has never been converted to a DT driver, so it
clearly hasn't been used since then. To ease upcoming refactoring in the
hwspinlock subsystem, remove this obsolete driver.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Link: https://lore.kernel.org/r/20260401071141.4718-2-wsa+renesas@sang-engineering.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

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Merge tag 'cpufreq-arm-updates-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm

Pull CPUFreq Arm updates for 7.1 from Viresh Kumar:

"- Update qcom-hw DT bindings to include Eliz

Merge tag 'cpufreq-arm-updates-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm

Pull CPUFreq Arm updates for 7.1 from Viresh Kumar:

"- Update qcom-hw DT bindings to include Eliza hardware (Abel Vesa).

- Update cpufreq-dt-platdev blocklist (Faruque Ansari).

- Minor updates to driver and dt-bindings for Tegra (Thierry Reding and
Rosen Penev).

- Add MAINTAINERS entry for CPPC driver (Viresh Kumar)."

* tag 'cpufreq-arm-updates-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
cpufreq: tegra194: remove COMPILE_TEST
cpufreq: Add QCS8300 to cpufreq-dt-platdev blocklist
cpufreq: Add MAINTAINERS entry for CPPC driver
cpufreq: tegra194: Rename Tegra239 to Tegra238
dt-bindings: arm: nvidia: Document the Tegra238 CCPLEX cluster
dt-bindings: cpufreq: qcom-hw: document Eliza cpufreq hardware

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Merge tag 'v7.0-rc7' into usb-next

We need the USB fixes in here to build on and for testing

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'v7.0-rc7' into char-misc-next

We need the char/misc/iio/comedi fixes in here as well for testing

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

MAINTAINERS, mailmap: update email address for Harry Yoo

Update my email address to harry@kernel.org.

Link: https://lkml.kernel.org/r/20260320125925.2259998-1-harry@kernel.org
Signed-off-by: Harry

MAINTAINERS, mailmap: update email address for Harry Yoo

Update my email address to harry@kernel.org.

Link: https://lkml.kernel.org/r/20260320125925.2259998-1-harry@kernel.org
Signed-off-by: Harry Yoo (Oracle) <harry@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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MAINTAINERS: add mm-related procfs files to MM sections

Some procfs files are very much related to memory management so let's have
MAINTAINERS reflect that.

Add fs/proc/meminfo.c to MEMORY MANAGEME

MAINTAINERS: add mm-related procfs files to MM sections

Some procfs files are very much related to memory management so let's have
MAINTAINERS reflect that.

Add fs/proc/meminfo.c to MEMORY MANAGEMENT - CORE.

Add fs/proc/task_[no]mmu.c to MEMORY MAPPING.

Link: https://lkml.kernel.org/r/20260305-maintainers-proc-v1-1-d6d09b3db3b6@kernel.org
Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Acked-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Acked-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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folio_batch: rename pagevec.h to folio_batch.h

struct pagevec was removed in commit 1e0877d58b1e ("mm: remove struct
pagevec"). Rename include/linux/pagevec.h to reflect reality and update
includes

folio_batch: rename pagevec.h to folio_batch.h

struct pagevec was removed in commit 1e0877d58b1e ("mm: remove struct
pagevec"). Rename include/linux/pagevec.h to reflect reality and update
includes tree-wide. Add the new filename to MAINTAINERS explicitly, as it
no longer matches the "include/linux/page[-_]*" pattern in MEMORY
MANAGEMENT - CORE.

Link: https://lkml.kernel.org/r/20260225-pagevec_cleanup-v2-3-716868cc2d11@columbia.edu
Signed-off-by: Tal Zussman <tz2294@columbia.edu>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Cc: Chris Li <chrisl@kernel.org>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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MAINTAINERS: add Youngjun Park as reviewer for SWAP

Recently, I have been actively contributing to the swap subsystem through
works such as swap-tier patches and flash friendly swap proposal. Durin

MAINTAINERS: add Youngjun Park as reviewer for SWAP

Recently, I have been actively contributing to the swap subsystem through
works such as swap-tier patches and flash friendly swap proposal. During
this process, I have consistently reviewed swap table code, some other
patches and fixed several bugs.

As I am already CC'd on many patches and maintaining active interest in
ongoing developments, I would like to officially add myself as a reviewer.
I am committed to contributing to the kernel community with greater
responsibility.

Link: https://lkml.kernel.org/r/20260226010739.3773838-1-youngjun.park@lge.com
Signed-off-by: Youngjun Park <youngjun.park@lge.com>
Reviewed-by: Barry Song <baohua@kernel.org>
Acked-by: Kairui Song <kasong@tencent.com>
Acked-by: Chris Li <chrisl@kernel.org>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: Nhat Pham <nphamcs@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Merge tag 'v7.0-rc6' into irq/core

to be able to merge the hyper-v patch related to randomness.

Merge tag 'amd-pstate-v7.1-2026-04-02' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux

Pull amd-pstate new content for 7.1 (2026-04-02) from Mario Limonciello:

"Add support for

Merge tag 'amd-pstate-v7.1-2026-04-02' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux

Pull amd-pstate new content for 7.1 (2026-04-02) from Mario Limonciello:

"Add support for new features:
* CPPC performance priority
* Dynamic EPP
* Raw EPP
* New unit tests for new features
Fixes for:
* PREEMPT_RT
* sysfs files being present when HW missing
* Broken/outdated documentation"

* tag 'amd-pstate-v7.1-2026-04-02' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux: (22 commits)
MAINTAINERS: amd-pstate: Step down as maintainer, add Prateek as reviewer
cpufreq: Pass the policy to cpufreq_driver->adjust_perf()
cpufreq/amd-pstate: Pass the policy to amd_pstate_update()
cpufreq/amd-pstate-ut: Add a unit test for raw EPP
cpufreq/amd-pstate: Add support for raw EPP writes
cpufreq/amd-pstate: Add support for platform profile class
cpufreq/amd-pstate: add kernel command line to override dynamic epp
cpufreq/amd-pstate: Add dynamic energy performance preference
Documentation: amd-pstate: fix dead links in the reference section
cpufreq/amd-pstate: Cache the max frequency in cpudata
Documentation/amd-pstate: Add documentation for amd_pstate_floor_{freq,count}
Documentation/amd-pstate: List amd_pstate_prefcore_ranking sysfs file
Documentation/amd-pstate: List amd_pstate_hw_prefcore sysfs file
amd-pstate-ut: Add a testcase to validate the visibility of driver attributes
amd-pstate-ut: Add module parameter to select testcases
amd-pstate: Introduce a tracepoint trace_amd_pstate_cppc_req2()
amd-pstate: Add sysfs support for floor_freq and floor_count
amd-pstate: Add support for CPPC_REQ2 and FLOOR_PERF
x86/cpufeatures: Add AMD CPPC Performance Priority feature.
amd-pstate: Make certain freq_attrs conditionally visible
...

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Merge branch 'for-7.1/cxl-misc' into cxl-for-next

MAINTAINERS: Update address for Dan Williams

MAINTAINERS: Update address for Dan Williams

Update MAINTAINERS and .mailmap to point to my kernel.org address:
djbw@kernel.org.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Link: https:/

MAINTAINERS: Update address for Dan Williams

Update MAINTAINERS and .mailmap to point to my kernel.org address:
djbw@kernel.org.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/20260403214846.1062341-1-dan.j.williams@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>

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hwmon: (yogafan) Add support for Lenovo Yoga/Legion fan monitoring

This driver provides fan speed monitoring for Lenovo Yoga, Legion, and
IdeaPad laptops by interfacing with the Embedded Controller

hwmon: (yogafan) Add support for Lenovo Yoga/Legion fan monitoring

This driver provides fan speed monitoring for Lenovo Yoga, Legion, and
IdeaPad laptops by interfacing with the Embedded Controller (EC) via ACPI.

To address low-resolution sampling in Lenovo EC firmware, a Rate-Limited
Lag (RLLag) filter is implemented. The filter ensures a consistent physical
curve regardless of userspace polling frequency.

Hardware identification is performed via DMI-based quirk tables, which
map specific ACPI object paths and register widths (8-bit vs 16-bit)
deterministically.

Signed-off-by: Sergio Melas <sergiomelas@gmail.com>
Link: https://lore.kernel.org/r/20260327221602.18832-1-sergiomelas@gmail.com
[groeck: Dropped double empty line in Kconfig]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

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kernel: ksysfs: initialize kernel_kobj earlier

Software nodes depend on kernel_kobj which is initialized pretty late
into the boot process - as a core_initcall(). Ahead of moving the
software node i

kernel: ksysfs: initialize kernel_kobj earlier

Software nodes depend on kernel_kobj which is initialized pretty late
into the boot process - as a core_initcall(). Ahead of moving the
software node initialization to driver_init() we must first make
kernel_kobj available before it.

Make ksysfs_init() visible in a new header - ksysfs.h - and call it in
do_basic_setup() right before driver_init().

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260402-nokia770-gpio-swnodes-v5-1-d730db3dd299@oss.qualcomm.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

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Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 7.0-rc6+

Cross-merge BPF and other fixes after downstream PR.

Minor conflict in kernel/bpf/verifier.c

Signed-off-by: Alexei Starovoitov

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 7.0-rc6+

Cross-merge BPF and other fixes after downstream PR.

Minor conflict in kernel/bpf/verifier.c

Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Merge tag 'drm-msm-next-2026-04-02' of https://gitlab.freedesktop.org/drm/msm into drm-next

Changes for v7.1

CI:
- Uprev mesa
- Restore CI jobs for Qualcomm APQ8016 and APQ8096 devices

Core:
- Swi

Merge tag 'drm-msm-next-2026-04-02' of https://gitlab.freedesktop.org/drm/msm into drm-next

Changes for v7.1

CI:
- Uprev mesa
- Restore CI jobs for Qualcomm APQ8016 and APQ8096 devices

Core:
- Switched to of_get_available_child_by_name()

DPU:
- Fixes for DSC panels
- Fixed brownout because of the frequency / OPP mismatch
- Quad pipe preparation (not enabled yet)
- Switched to virtual planes by default
- Dropped VBIF_NRT support
- Added support for Eliza platform
- Reworked alpha handling
- Switched to correct CWB definitions on Eliza
- Dropped dummy INTF_0 on MSM8953
- Corrected INTFs related to DP-MST

DP:
- Removed debug prints looking into PHY internals

DSI:
- Fixes for DSC panels
- RGB101010 support
- Support for SC8280XP
- Moved PHY bindings from display/ to phy/

GPU:
- Preemption support for x2-85 and a840
- IFPC support for a840
- SKU detection support for x2-85 and a840
- Expose AQE support (VK ray-pipeline)
- Avoid locking in VM_BIND fence signaling path
- Fix to avoid reclaim in GPU snapshot path
- Disallow foreign mapping of _NO_SHARE BOs
- Couple a6xx gpu snapshot fixes
- Various other fixes

HDMI:
- Fixed infoframes programming

MDP5:
- Dropped support for MSM8974v1
- Dropped now unused code for MSM8974 v1 and SDM660 / MSM8998

Also misc small fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <rob.clark@oss.qualcomm.com>
Link: https://patch.msgid.link/CACSVV012vn73BaUfk=Hw4WkQHZNPHiqfifWEunAqMc2EGOWUEQ@mail.gmail.com

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