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Author SHA1 Message Date
Linkai Gong
62edb8ca0a i2c: mux: demux-pinctrl: fix OF node leak on kstrdup failure 
of_parse_phandle() takes a reference on the parent node. If a later
devm_kstrdup() fails, err_rollback only releases nodes for indices
0..i-1, so the current node is leaked.

of_node_put() the current parent before rolling back.

Fixes: 7c0195fa9a ("i2c: mux: demux-pinctrl: check the return value of devm_kstrdup()")
Signed-off-by: Linkai Gong <gonglinkai@kylinos.cn>
Cc: <stable@vger.kernel.org> # v6.6+
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260813095617.2246320-1-gonglinkai@kylinos.cn
 2026-08-19 21:55:53 +02:00
Ruoyu Wang
43eb13f133 i2c: ocores: Disable clock on failed resume 
ocores_i2c_resume() enables the controller clock before reinitializing
the hardware. If the clock rate changed while the device was suspended,
ocores_init() may reject the resulting prescaler. The callback then
returns an error with the clock still enabled, while the controller
itself remains disabled.

Disable and unprepare the clock when ocores_init() fails so the failed
resume path balances the successful clk_prepare_enable() call.

This issue was found by a static analysis checker and confirmed by manual
source review.

Fixes: e961a094af ("i2c: ocores: add common clock support")
Signed-off-by: Ruoyu Wang <ruoyuw560@gmail.com>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260813153155.3953577-1-ruoyuw560@gmail.com
 2026-08-19 21:55:52 +02:00
Carlos Song
a4c419356a i2c: imx-lpi2c: reset controller in probe stage 
Reset I2C controller in probe stage to avoid unexpected LPI2C controller
state left from previous stages and hang system boot.

Per the LPI2C reference manual, section 7.1.4 "Controller Control (MCR)"
and 7.1.20 Target Control (SCR), the RST bit (bit 1) description states:

  "The reset takes effect immediately and remains asserted until negated
  by software. There is no minimum delay required before clearing the
  software reset."

Therefore, it is safe to write 0 to MCR and SCR immediately after
asserting the RST bit without any additional delay.

Signed-off-by: Carlos Song <carlos.song@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260716071957.2670263-3-carlos.song@oss.nxp.com
 2026-08-19 21:55:52 +02:00
Carlos Song
cbd043b00e i2c: imx-lpi2c: properly unwind resources on probe failure 
When probe fails at devm_clk_rate_exclusive_get() or clk_get_rate(),
which occur before runtime PM is initialized, the clocks enabled by
clk_bulk_prepare_enable() are never disabled.

When probe fails after runtime PM is initialized, the previous error
path called pm_runtime_put_sync(), which triggers the runtime suspend
callback. However, due to different clock management strategies on
different SoCs[1] (to avoid deadlocks between the global prepare_lock
and runtime PM), the callback may only disable clocks without
unpreparing them, causing an incomplete unwind.

Introduce a new error label 'clk_disable' to explicitly invoke
clk_bulk_disable_unprepare(). Replace pm_runtime_put_sync() with the
sequence of pm_runtime_disable(), pm_runtime_set_suspended() and
pm_runtime_put_noidle() to bypass the runtime suspend callback during
error recovery. During the LPI2C driver probe phase, clock APIs are
used exclusively to manage clocks. Once probing succeeds, clock
management is handed over to the runtime PM core.

[1] https://lore.kernel.org/all/20251125084718.2156168-1-carlos.song@nxp.com/

Signed-off-by: Carlos Song <carlos.song@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260716071957.2670263-2-carlos.song@oss.nxp.com
 2026-08-19 21:55:52 +02:00
Pei Xiao
d1f112e2fa i2c: busses: drop redundant dev_err_probe() around irq helpers 
platform_get_irq(), devm_request_irq() and devm_request_threaded_irq()
already print an error message via dev_err_probe() on failure, so
wrapping their return value with another dev_err_probe() results in
duplicate error output.

Drop these redundant dev_err_probe() calls across i2c bus drivers
and return the error code directly instead.

Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/aea09858af6be39497325e2560267771ed62e6b0.1784537126.git.xiaopei01@kylinos.cn
 2026-08-19 21:55:51 +02:00
Linus Torvalds
abea5c3493 Merge tag 'i2c-7.3-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux 
Pull i2c updates from Andi Shyti:
 "The main changes are support for shared SCL lines in i2c-gpio, a
  larger qcom-geni update covering tracing and transfer recovery and
  support for R-Car Gen5.

  The rest is mostly smaller driver, core and DT binding updates.

  Core and helpers:
   - support bus recovery with single-ended GPIOs
   - acpi: clean up resource handling
   - acpi: force ELAN1300 to 100 kHz
   - algo-bit: allow consumers to skip the optional bus test

  Drivers:
   - use generic bus frequency definitions in nomadik, octeon-core,
     microchip-corei2c, k1, davinci and pnx
   - i2c-gpio: support multiple buses sharing the same SCL line
   - qup: propagate clock enable failures
   - spacemit: configure SCL timing and clean up clock handling
   - amd-asf: guard against oversized firmware length

  qcom-geni:
   - add tracepoints for bus setup, interrupts and errors
   - use dedicated completion events for abort and reset
   - distinguish address and data NACK handling
   - cancel transfers before falling back to abort
   - simplify runtime PM and resource management
   - refactor resource and serial engine initialization

  DT bindings:
   - convert Altera bindings to DT schema
   - convert Axxia bindings to DT schema

  New support:
   - R-Car Gen5 and R-Car X5H
   - Axiado AX3005
   - Qualcomm Nord SA8797P
   - Qualcomm SA8255p"

* tag 'i2c-7.3-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux: (33 commits)
  i2c: core: support recovery for single-ended GPIOs
  i2c: rcar: add R-Car Gen5 support
  dt-bindings: i2c: rcar-i2c: Document R-Car X5H support
  i2c: i2c-gpio: Enhance driver for buses with shared SCL
  i2c: algo: bit: Allow to skip bit test
  i2c: qcom-geni: Add trace events for Qualcomm GENI I2C driver
  i2c: qcom-geni: trace: Add trace events for Qualcomm GENI I2C
  i2c: qup: Propagate clock enable failures
  i2c: qcom-geni: distinguish address-phase and data-phase NACK
  i2c: qcom-geni: use dedicated completions for abort and reset events
  i2c: qcom-geni: use cancel command before abort on transfer timeout
  dt-bindings: i2c: cdns: add Axiado AX3005 I2C variant
  i2c: qcom-geni: Use devm_pm_runtime_enable() for PM management
  dt-bindings: i2c: qcom,sa8255p-geni-i2c: Add compatible for Nord SA8797P
  i2c: nomadik: Use generic definitions for bus frequencies
  i2c: octeon-core: Use generic definitions for bus frequencies
  i2c: microchip-corei2c: Use generic definitions for bus frequencies
  i2c: k1: Use generic definitions for bus frequencies
  i2c: davinci: Use generic definitions for bus frequencies
  i2c: pnx: Use generic definitions for bus frequencies
  ...
 2026-08-19 09:23:13 -07:00
Linus Torvalds
7711f4417f Merge tag 'gpio-updates-for-v7.3-rc1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux 
Pull gpio updates from Bartosz Golaszewski:
 "GPIO core:
   - extend the gpio-regmap abstraction layer with more features
     allowing users to override configuration setting, translate
     register values and masks and enable/disable interrupts
   - extend GPIO kunit tests with suites verifying probe ordering by
     software node devlink support and software node hogs
   - shrink GPIO kunit initialization code
   - coding style updates (remove commas from sentinels where
     applicable)
   - with all users now converted treewide to using real firmware node
     links for software node GPIO lookup: remove the deprecated
     label-matching mechanism from from GPIO core
   - drop redundant return value check of nonseekable_open() in
     gpiolib-cdev
   - use IRQ trigger helpers where applicable

  Driver updates:
   - refactor error paths and logging in gpio-nomadik
   - use more modern interfaces for getting resources in gpio-rockchip,
     gpio-bt8xx and gpio-pca9570
   - add missing MODULE_DEVICE_TABLE() to gpio-sifive and gpio-vf610
   - drop unused FILONOFF macro from gpio-rcar
   - extend build coverage of ioport GPIO drivers with COMPILE_TEST=y
   - only enable the gpio-rtd driver by default with ARCH_REALTEK=y to
     avoid bloating the build
   - refactor coding style in several drivers
   - use correct endianess translation in gpio-pcf85x
   - add wake-up interrupt support to gpio-mvebu
   - apply initial value in direction output setter in gpio-by-pinctrl

  Misc:
   - replace linux/gpio.h inclusions treewide with linux/gpio/legacy.h
     which now exports all the deprecated APIs
   - select GPIOLIB_LEGACY in Kconfig where required treewide
   - use software nodes for gpio-keys in MFD drivers

  Devicetree bindings:
   - describe the realtek rtd1625 GPIO controller
   - document new models for gpio-pca95xx and gpio-cadence
   - document new property in gpio-rockchip"

* tag 'gpio-updates-for-v7.3-rc1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (61 commits)
  gpio: gpio-by-pinctrl: Apply initial value in direction output wrapper
  dt-bindings: gpio: rockchip,gpio-bank: Add rockchip,grf property
  gpio: Use IRQ trigger mask helpers
  gpio: allow COMPILE_TEST for IOPORT drivers
  gpio: realtek: Add driver for Realtek DHC RTD1625 SoC
  gpio: regmap: Add IRQ enable/disable helpers
  gpio: regmap: Add set_config callback
  gpio: regmap: Add value_xlate callback
  gpio: regmap: Add gpio_regmap_operation to extend reg_mask_xlate callback
  gpio: regmap: Order kernel-doc descriptions with the actual appearance
  gpio: regmap: Apply default resource callbacks for regmap IRQ chip
  gpio: regmap: Provide default IRQ resource request and release callbacks
  Revert "gpio: realtek: Add driver for Realtek DHC RTD1625 SoC"
  gpib: gpio: replace linux/gpio.h inclusion
  Input: matrix_keyboard - replace linux/gpio.h inclusion
  phy: replace linux/gpio.h inclusions
  pcmcia: replace linux/gpio.h inclusions
  ASoC: replace linux/gpio.h inclusions
  mfd: replace linux/gpio.h inclusions
  sh: replace linux/gpio.h inclusions
  ...
 2026-08-19 09:10:07 -07:00
Linus Torvalds
d0d82a84c9 Merge tag 'pwrseq-updates-for-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux 
Pull power sequencing updates from Bartosz Golaszewski:
 "This a very tiny pull for v7.3 from the power sequencing tree. It only
  contains a handful of updates to the pwrseq-pcie-m2 driver:

   - add support for new devices to pwrseq-pcie-m2

   - make device matching more fine-grained for cases where the same
     combo chips are wired differently on the M.2 card (and - for
     instance - don't require serial device creation because they expose
     BT over USB) in pwrseq-pcie-m2"

* tag 'pwrseq-updates-for-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  power: sequencing: pcie-m2: Match WCN6855 and WCN7851 UART BT variants by subdevice ID
  power: sequencing: pcie-m2: Add QCA2066 (QCNFA765) BT serdev ID
  power: sequencing: pcie-m2: Add PCI ID for NXP 88W9098 and AW693 Bluetooth
 2026-08-19 09:08:06 -07:00
Linus Torvalds
a288cd69f7 Merge tag 'pwm/for-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux 
Pull pwm updates from Uwe Kleine-König:
 "A bunch of cleanups - in C and Rust - and a devicetree and driver
  extension for a new SoC variant.

  Thanks to Biju Das, Francis Laniel, Guru Das Srinagesh, Markus
  Elfring, Mikko Perttunen, Thierry Reding, and Yi-Wei Wang for their
  changes and further Alexandre Courbot, Benno Lossin, Chen Wang, Geert
  Uytterhoeven, Jon Hunter, Laurent Pinchart, Michal Wilczynski, Mikko
  Perttunen, and Rob Herring for valuable review feedback"

* tag 'pwm/for-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux:
  pwm: th1520: use vertical import style
  rust: pwm: replace `core::mem::zeroed` with `pin_init::zeroed`
  pwm: rzg2l-gpt: Drop unused rzg2l_gpt_chip parameter from rzg2l_gpt_calculate_prescale()
  pwm: Use seq_putc() calls in pwm_dbg_show()
  pwm: tegra: Add support for Tegra264
  pwm: tegra: Parametrize duty and scale field widths
  pwm: tegra: Modify read/write accessors for multi-register channel
  pwm: tegra: Avoid hard-coded max clock frequency
  pwm: tegra: Prefix driver-local macros and functions
  dt-bindings: pwm: Document Tegra264 controller
  pwm: lpss-pci: Unify coding style of pci_device_id array
  pwm: Unify coding style of of_device_id arrays
  pwm: Unify coding style of acpi_device_id arrays
  pwm: Use named initializers for arrays of acpi_device_id
  pwm: pca9685: Drop unused assignment of acpi_device_id driver data
  pwm: pxa: Depend on OF and simplify accordingly
  pwm: Use named initializers for platform_device_id arrays
  pwm: mc33xs2410: Initialize spi_device_id arrays using member names
 2026-08-19 09:03:59 -07:00
Linus Torvalds
1be05c6afb Merge tag 'input-for-v7.3-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 
Pull input updates from Dmitry Torokhov:

 - A new driver and device tree binding for Imagis ISA1200 haptic motor
   controller

 - Improvements to input core opening, closing and inhibiting devices,
   ensuring devices are fully ready before delivering events, deferring
   handler start() until the device is opened, resyncing state on
   uninhibit, and rejecting inhibit requests during unregistration

 - Updates to cap11xx capacitive touch driver to support Microchip
   CAP1114, optional hardware reset GPIO handling, and per-chip LED
   constraints

 - Fixes for MELFAS MMS114 touchscreen driver hardening incoming data
   parsing, endianness fixes for I2C packet layout, Y-resolution
   configuration, and refactoring to use chip variant descriptors

 - Updates for psmouse driver resolving a potential UAF during protocol
   disconnect, cleaning up PNP ID matching, and making use of guard()

 - Fix for FocalTech PS/2 protocol to prevent coordinate underflow and
   cursor jumps at boundaries

 - A change to Synaptics driver to enable InterTouch (SMBus) mode on
   Dell Inspiron 3521

 - Refactoring of PA-RISC keyboard support in gscps2 to supply keymaps
   via software node device properties, removing architecture-specific
   tables from the generic atkbd driver

 - Updates to Samsung keypad driver to keep interrupts disabled while
   device is closed, along with wakeup logic cleanups and use of
   pm_runtime_active guards

 - Updates to NXP i.MX SNVS power key driver to report press events
   during resume to avoid lost events, and error handling cleanups

 - Updated TCA8418 keypad driver enabling overflow mode per hardware
   errata

 - Conversion of ROHM BD718x7 and BD71828 PMIC drivers to instantiate
   gpio-keys child devices using software nodes instead of platform data
   (coming from MFD immutable branch)

 - Updates to Synaptics RMI4 driver to use touchscreen dimensions from
   platform data when specified

 - Firmware update speed optimization for IC Type 0x19 in ELAN I2C
   driver

 - A fix to Azoteq IQS5xx driver to validate firmware record spans
   against programmable map size

 - Update to Samsung SUR40 contact count based on PixelSense
   specification

 - A number of updates to device tree bindings, including TI TPS65217
   power button schema conversion and new compatibles for FocalTech
   FT3D81 and Synaptics S3706B

 - Other assorted driver cleanups, style fixes, and conversions to
   modern string and cleanup helpers

* tag 'input-for-v7.3-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (61 commits)
  Input: rmi4 - use platform data instead of query, when available
  Input: elan_i2c - sort include statements
  Input: elan_i2c - optimize update speed for IC Type 0x19.
  Input: elan_i2c - use device-id/acpi.h for ACPI IDs
  Input: reject inhibit and uninhibit requests on unregistering devices
  Input: defer handler's start() until device is opened
  Input: call handler->start() when uninhibiting device
  Input: clear inhibited flag before re-opening device on uninhibit
  Input: ensure device is ready before delivering events
  Input: gscps2 - supply PA-RISC keyboard keymap via device property
  Input: synaptics_i2c - return 0 explicitly on success
  Input: rmi_smbus - remove conditional return with no effect
  Input: pmic8xxx-keypad - remove conditional return with no effect
  Input: focaltech - use signed coordinates to prevent underflow
  Input: psmouse - use guard() for resource management
  Input: psmouse - modernize PNP ID parsing
  Input: psmouse - clean up locking around disable_work_sync()
  Input: psmouse - fix use-after-free during protocol disconnect
  Input: samsung-keypad - use pm_runtime_active guard
  Input: samsung-keypad - keep interrupt disabled while closed
  ...
 2026-08-19 08:59:24 -07:00
Linus Torvalds
e8bf40d154 Merge tag 'chrome-platform-firmware-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux 
Pull chrome platform firmware updates from Tzung-Bi Shih:
 "Fixes:
    - Don't map no-map memory regions for CBMEM entries
    - Check bound of coreboot table entries

  Cleanups:
  - Fix typo in docs"

* tag 'chrome-platform-firmware-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  firmware: coreboot: Validate table bounds
  firmware: coreboot: Skip no-map CBMEM entries
  docs: ABI: testing: Fix typo
 2026-08-19 08:49:43 -07:00
Linus Torvalds
c36a4991e2 Merge tag 'chrome-platform-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux 
Pull chrome platform updates from Tzung-Bi Shih:
 "New:
   - Add post_power_on_delay_ms for Hana in of_hw_prober

  Improvements:
   - Use dumb trackpad prober for Spherion in of_hw_prober

  Fixes:
   - Check bound of firmware-reported data in cros_ec_sensorhub and
     cros_ec_typec
   - Fix memory overread in cros_ec_sensorhub
   - Fix resource leak in cros_ec_debugfs
   - Clamp payload length for LIGHTBAR_CMD_SET_PROGRAM_EX in
     cros_ec_lightbar

  Cleanups:
   - Drop unused platform_device_id driver data
   - Remove redundant log"

* tag 'chrome-platform-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: of_hw_prober: Add delay for hana trackpads
  platform/chrome: lightbar: Limit payload to max packet size
  platform/chrome: cros_ec_debugfs: Unregister panic notifier
  platform/chrome: cros_ec_debugfs: Clean up console log on probe failure
  platform/chrome: cros_ec: Remove redundant dev_err()
  platform/chrome: sensorhub: Fix dropped timestamp events and log spam
  platform/chrome: sensorhub: Fix memory overread in ring handler
  platform/chrome: cros_ec_typec: Reject out-of-bounds PD cap count
  platform/chrome: of_hw_prober: Use dumb trackpad prober for Spherion
  platform/chrome: Drop unused assignment of platform_device_id driver data
  platform/chrome: sensorhub: Bound the EC-reported sensor number
 2026-08-19 08:27:06 -07:00
Linus Torvalds
bd5f485f3f Merge tag 'soc-arm-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc 
Pull ARM SoC platform updates from Arnd Bergmann:
 "The 32-bit Arm platforms are a bit more interesting this time: I
  refreshed an earlier series to mark code as deprecated that does have
  the tendency of getting in the way of cleanups and new features but
  has close to zero users. Among these are:

   - 22 of the remaining 28 legacy board files that predate the current
     devicetree based descriptions, using old chips from Intel and
     Marvell. The remaining six board files are for TI OMAP1 and Samsung
     s3c64xx chips and all still have known users.

   - support for Cortex-M3/M4/M7 and ARM1136r0 CPU cores and the 25
     machines based on these. These all use devicetree but the CPU
     support causes disproportional work. Most of them are just
     reference boards, the notable exceptions being the Nokia N800/N810
     tablet and the Buglabs BUG platform.

   - be8, be32, oabi and iwmmxt userspace binaries, which were mostly
     associated with the platforms now scheduled for removal and are
     increasingly problematic to support with modern toolchains.

  Nothing is actually removed at this point, to ensure that any
  remaining users continue to have the 7.3-LTS for a while longer.
  Patches for removal are currently being tested.

  Other updates include a continued work to convert GPIO number based
  interfaces to descriptors, a patch to restore little-endian mode on
  the one Arm platform (ixp4xx) that only worked in big-endian mode
  recently, and some minor cleanups and bugfixes"

* tag 'soc-arm-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (41 commits)
  MAINTAINERS: Drop redundant lists from various Samsung entries
  ARM: tegra: Replace __ASSEMBLY__ with __ASSEMBLER__
  ARM: tegra: Fix OF node reference leaks in IRQ init
  ARM: lpc32xx: remove a few manually populated OF devices
  ARM: lpc32xx: only run SoC init on LPC32xx hardware
  firmware: imx: scu: manage mailbox channels and global handle
  ARM: sa1100: h3xxx: convert gpio-keys to use software nodes
  ARM: sa1100: collie: convert gpio-keys to use software nodes
  ARM: sa1100: assabet: convert gpio-keys to use software nodes
  gpio: sa1100: register software node for GPIO controller
  ARM: ixp4xx: Relax endianness
  ARM: replace linux/gpio.h inclusions
  soc: imx9: devm_kasprintf error handling
  ARM: mark mv78xx0 support as deprecated
  ARM: mark axxia platform as deprecated
  ARM: mark Cortex-M3/M4/M7 based boards as deprecated
  ARM: mark footbridge as deprecated
  ARM: mark RiscPC as deprecated
  ARM: mark mach-sa1100 as deprecated
  ARM: orion5x: mark all board files as deprecated
  ...
 2026-08-18 19:50:40 -07:00
Linus Torvalds
6eb1ea5ff4 Merge tag 'soc-defconfig-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc 
Pull SoC defconfig updates from Arnd Bergmann:
 "Just the usual updates to the main defconfig files as well as the
  omap2 specific one, to enable more loadable modules for better default
  hardware support"

* tag 'soc-defconfig-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  riscv: defconfig: thead: enable PCA953X GPIO driver
  arm64: defconfig: Enable drivers for BeagleBadge
  arm64: defconfig: Enable Qualcomm BAM-DMUX WWAN driver
  arm64: defconfig: Enable Sound DMIC driver
  arm: omap2plus_defconfig: Enable multi-LED
  arm64: defconfig: Enable Qualcomm reference device EC driver
  ARM: omap2plus_defconfig: enable things required by iwd
  arm: multi_v7_defconfig: Enable BRIDGE and DP83848_PHY for TI AM57xx, AM437x and AM335x
  arm64: defconfig: Enable Allwinner LRADC input driver
 2026-08-18 19:47:08 -07:00
Linus Torvalds
368cf60c36 Merge tag 'soc-drivers-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc 
Pull SoC driver updates from Arnd Bergmann:
 "The SoC driver changes once more consist of many small fixes and
  cleanups, that are to a large part the result of automated testing.

  On platform specific drivers, this includes SoC specific code for
  xilinx, freescale/nxp, qualcomm, TI, aspeed, omap, tegra, samsung,
  rockchip, renesas, ixp4xx. In firmware drivers, we see a similar
  picture for SCMI and qcomtee.

  Aside from these, we see actual new hardware support in a few areas:

   - The Apple platform gets a new driver for low power states

   - Updates to Qualcomm platform drivers add several new hardware
     specific features and additional SoCs.

   - Amlogic SoC support for A1 and T7 is added

   - The Mediatek MMSYS driver is refactored as a cleanup"

* tag 'soc-drivers-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (157 commits)
  soc: qcom: make QCOM_PDR_MSG selectable
  soc: qcom: ubwc: Fix missing include
  soc: qcom: ubwc: Fix link error when QCOM_SMEM=n
  media: iris: Guard the QCOM_UBWC_CONFIG select with QCOM_SMEM
  drm/msm: Guard the QCOM_UBWC_CONFIG select with QCOM_SMEM
  dt-bindings: arm: qcom,ids: Add SoC ID for Snapdragon SDM 850
  firmware: xilinx: Clear firmware notifiers across kexec transitions
  firmware: xilinx: Release all peripheral devices from firmware
  firmware: xilinx: Add support to clear EL3 PM state
  firmware: xilinx: Propagate actual error from feature check
  firmware: xilinx: Use TF-A feature check for TF-A-specific APIs
  bus: fsl-mc: drop unused assignment of acpi_device_id::driver_data
  soc: fsl: qe: check platform_driver_register() in qe_ic_of_init()
  phy: lynx-10g: use RCW override procedure for dynamic protocol change
  soc: fsl: guts: implement the RCW override procedure
  dt-bindings: fsl: layerscape-dcfg: define DCFG_DCSR region
  soc: fsl: guts: make fsl_soc_data available after fsl_guts_init()
  soc: fsl: guts: make it easier to determine on which SoC we are running
  soc: fsl: guts: add a central fsl_guts_read() function
  soc: fsl: guts: add a global structure to hold state
  ...
 2026-08-18 19:40:29 -07:00
Linus Torvalds
cbe8aadf15 Merge tag 'soc-dt-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc 
Pull SoC devicetree updates from Arnd Bergmann:
 "There are two new mystery SoCs with very little public information
  about them so far, Qualcomm's Cortex-A78C based "Shikra" and Altera's
  Cortex-A720 based Agilex72 SOCFPGA.

  We have also gained support for a couple of SoCs from the 2023/2024
  timeframe that have been in the making for a while:

   - The Apple platform gains support for M3 Pro, Max and Ultra SoC,
     following the basic M3 support from 7.2.

   - Samsung Exynos 1580 is a high-end mobile phone SoC from 2024

   - Canaan K230 is a RISC-V based 64-bit AI SoC, based on the earlier
     K210 chip

   - Sophgo SG2000 is a mixed Arm/RISC-V chip that was already supported
     using the Arm core but is now also added for RISC-V along with
     several other variants of the cv18xx series

  In terms of newly added machines we have reference platforms for all
  the chips above, plus

   - Only four 32-bit Arm boards: two older phones and two older
     industrial/embedded boards; using Allwinner, Qualcomm and Rockchip
     SoCs

   - Three laptops und three phones using Qualcomm SoCs

   - Ten 64-bit Rockchips based single-board computers, along with one
     NAS box and a game console.

   - Seven industrial/embedded boards and modules using NXP i.MX8/9
     SoCs.

   - A Lenovo desktop box based on NVIDIA Jetson Xavier NX

   - A few more single-board computers based on Allwinnner A133,
     Spacemit K1 and TI AM62.

  As usual, there is a constant stream of minor cleanups and fixes
  towards addressing the 'dt-check-style --mode strict' warnings, and
  everyone is expected to address those warnings for new submissions
  now"

* tag 'soc-dt-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (864 commits)
  Revert "riscv: dts: spacemit: k3: add i2s0-i2s5 nodes"
  Documentation/process: maintainer-soc: Mention expectation about dt-check-style
  ARM: dts: helios4: add SATA regulator supplies
  ARM: dts: helios4: add vcc-supply to GPIO expander
  ARM: dts: helios4: add vcc-supply to EEPROM
  arm64: dts: turris-mox: fix usb3 phys
  arm64: dts: ti: Correct white-space style
  arm64: dts: ti: k3-am64: Fix MDIO clock reference for ICSSG0 node
  arm64: dts: qcom: talos-evk: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: sa8155p-adp: Fix swapped USB and UFS QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: eliza-mtp: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: lemans: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: glymur: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: kaanapali: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: sar2130p: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: sm8750: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: sm8650: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: purwa: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: hamoa: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: sc8180x: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  ...
 2026-08-18 19:36:32 -07:00
Linus Torvalds
ca58a3dde6 Merge tag 'alpha-for-v7.3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha 
Pull alpha updates from Magnus Lindholm:
 "This contains two fixes for Alpha floating-point exception handling,
  two clang-related fixes, the preparatory changes from the
  generic-entry series, an interrupt-entry lockdep fix, two Marvel/EV7
  IRQ fixes, an RTC fix, and one header cleanup.

  The generic-entry preparation adds regset-based ptrace and core dumps,
  ARCH_STACKWALK and lockdep hardirq-state tracking. These changes are
  useful independently and enable previously missing debugging
  facilities on Alpha.

  The final patch switching Alpha to GENERIC_ENTRY is intentionally not
  included in this pull request. I am deferring that change to allow
  further testing and to reduce the risk of conflicts with ongoing
  entry-path work elsewhere in the kernel"

* tag 'alpha-for-v7.3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha:
  alpha: read $gp and $sp explicitly for clang
  alpha: pass -Wa,-mev6 only when using GNU as
  alpha: annotate hardirqs-off on IPL 7 interrupt entry
  alpha: run the remote RTC access in a worker, not an IPI callback
  alpha: don't leak hardware-fabricated FP exception bits to user space
  alpha: fix ieee_swcr_to_fpcr setting FPCR_DNOD unconditionally
  alpha: enable lockdep hardirq state tracking
  alpha: use raw spinlocks for low-level platform locks
  alpha: provide ftrace return address support for lockdep
  alpha: make irqflags helpers operate on IPL state
  alpha: add ARCH_STACKWALK-based stacktrace support
  alpha: enable regset-based ptrace and core dumps
  alpha: marvel: Fix lock ordering in init_io7_irqs()
  alpha: marvel: Fix irq_set_status_flags to use correct IRQ number
  alpha: remove unnecessary architecture-specific <asm/device.h>
 2026-08-18 19:33:32 -07:00
Linus Torvalds
d10e148b27 Merge tag 'csky-for-linus-7.3' of https://github.com/c-sky/csky-linux 
Pull csky update from Guo Ren:

 - Fix a4/a5 restoration in syscall trace path

* tag 'csky-for-linus-7.3' of https://github.com/c-sky/csky-linux:
  csky: Fix a4/a5 restoration in syscall trace path
 2026-08-18 19:32:34 -07:00
Linus Torvalds
5808ac1889 Merge tag 'x86_cpu_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 cpuid updates from Borislav Petkov:

 - Get rid of static_cpu_has() - one less API to care about testing CPU
   features

 - Unify the handling of CPU core types (performance, efficient, etc) by
   mapping the vendor-specific types to Linux ones

 - Continuation of the work of Ahmed Darwish to centralize CPUID leaf
   representation

* tag 'x86_cpu_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/CPU: Rename struct cpuid_read_output to struct cpuid_output
  x86/cpu/scattered: Sort it properly
  x86/cpu: Use parsed CPUID(0x1)
  x86/lib: Add CPUID(0x1) family and model calculation
  x86/cpu: Use parsed CPUID(0x0)
  x86/cpu/transmeta: Rescan CPUID(0x1) after modifying capabilities
  x86/topology: Add TOPO_CPU_TYPE_LOW_POWER
  x86/topology: Name the AMD core-type values
  x86/topo: Map vendor CPU types to generic Linux such types
  x86/bugs: Don't use cpu-type matching in cpu_vuln_blacklist
  x86/cpu: Hide and rename static_cpu_has()
 2026-08-18 19:09:42 -07:00
Linus Torvalds
bbd0571269 Merge tag 'x86_cleanups_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 cleanups from Borislav Petkov:

 - The usual pile of smallish cleanups and fixlets all over the place

* tag 'x86_cleanups_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Remove unnecessary __maybe_unused annotations
  x86/msr: Document the I/O-like write semantics in the msr driver
  x86/apic: Ensure ICR register write value is handled as 32 bits
  x86/boot/compressed/head_64.S: Clean up SEV-related comments
  Documentation/arch/x86/amd-memory-encryption.rst: Fix typo
  x86/platform/quark: Fix kernel-doc warnings in imr.c
  x86/ras: Move contents from arch/x86/ras/Kconfig into drivers/ras/Kconfig
  x86/cpu: Move intel_get_platform_id() to cpu/intel.c
  x86/mm: Fix typo in comment
  x86/fpu: Fix kernel-doc formatting above fpu_enable_guest_xfd_features()
  x86/cfi: Use symmetric SYM_START and SYM_END in __CFI_TYPE()
  x86/cfi: Add __init_or_module annotations for fineibt
 2026-08-18 18:34:58 -07:00
Linus Torvalds
94845e2929 Merge tag 'x86_cache_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 resource control updates from Borislav Petkov:

 - How refreshing: no new features but a whole pile of fixes to more or
   less serious issues reported by Sashiko along with miscellaneous
   cleanups all over the place. All except one by Reinette Chatre, the
   one by Tony Luck.

* tag 'x86_cache_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  fs/resctrl: Inform user space when status buffer overflowed
  fs/resctrl: Communicate resource group deleted error via last_cmd_status
  fs/resctrl: Add last_cmd_status support for writes to max_threshold_occupancy
  fs/resctrl: Change last_cmd_status custom during input parsing
  fs/resctrl: Use accurate and symmetric exit flows
  fs/resctrl: Pass error reading event through to user space
  fs/resctrl: Use accurate type for rdt_resource::rid
  fs/resctrl: Change pattern used to track number of entries in enum resctrl_conf_type
  x86/resctrl: Protect against bad shift
  fs/resctrl: Use correct format specifier for printing error pointers
  fs/resctrl: Fix UAF from worker threads when domains are removed
  x86/resctrl: Ensure domain fully initialized before placed on RCU list
  fs/resctrl: Prevent deadlock and use-after-free in info file handlers
  fs/resctrl: Prevent use-after-free in rdtgroup_kn_put()
  fs/resctrl: Fix deadlock on errors during mount
  fs/resctrl: Move functions to avoid forward references in subsequent fixes
  x86,fs/resctrl: Document safe RCU list traversal
 2026-08-18 18:32:24 -07:00
Linus Torvalds
ccb9331e13 Merge tag 'x86_alternatives_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 alternatives update from Borislav Petkov:

 - Remove the smp_locks alternatives machinery which was used to patch
   out lock prefixes when running a SMP kernel on a uniprocessor machine

* tag 'x86_alternatives_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/alternative: Drop smp_locks glue
 2026-08-18 18:11:25 -07:00
Linus Torvalds
b960327ab3 Merge tag 'ras_core_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 MCE update from Borislav Petkov:

 - Add mce=print_all to the mce= kernel cmdline params documentation

* tag 'ras_core_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Document the mce=print_all command line parameter
 2026-08-18 18:09:42 -07:00
Linus Torvalds
b126f6f594 Merge tag 'x86_mm_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 mm updates from Dave Hansen:
 "There are two things in here of note. First, there are fixes to reduce
  the time that the TLB flushing code sits around with interrupts
  disabled. It should be well tested, but it's certainly something to
  keep an eye on.

  Second is a little back-and-forth in the interactions between the
  set_memory*() locking and DEBUG_PAGEALLOC. There was a slightly
  painful re-discovery of why DEBUG_PAGEALLOC has special locking rules,
  but the code did end up better for it.

  Summary:

   - Fix pkey_alloc() return value when pkeys are not supported

   - Allow preemption during IPI completion waiting to improve wakeup
     latency

   - Convert more x86 page table code to ptdescs

   - Fixes and cleanups for set_memory*() locking, mostly around large
     pages"

* tag 'x86_mm_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/pkeys: Fix pkey_alloc() return value when pkeys are not supported
  x86/mm: Fix and document DEBUG_PAGEALLOC
  x86/mm: Use guard() for pgd_lock
  x86/mm: Use guard() in cpa_collapse_large_pages()
  x86/mm: Re-enable preemption before flush_tlb_multi()
  x86/kvm: Disable preemption in kvm_flush_tlb_multi()
  x86/mm: Move flush_tlb_info back to the stack
  x86/mm: Cap flush_tlb_info alignment at 64 bytes
  x86/mm: Factor out flush_tlb_info initialization
  x86/mm/pat: Take cpa_lock around large-page collapse
  x86/mm/pat: Don't gate cpa_lock on debug_pagealloc_enabled()
  x86/xen: Convert xen_mm_unpin_all() to ptdescs
  x86/xen: Convert xen_mm_pin_all() to ptdescs
  x86/mm: Convert pgd_page_get_mm() to ptdescs
  x86/mm: Convert sync_global_pgds_l4() to ptdescs
  x86/mm: Convert sync_global_pgds_l5() to ptdescs
  x86/mm: Convert arch_sync_kernel_mappings() to ptdescs
  x86/mm/pat: Convert collapse_pmd_page() to ptdescs
  x86/mm/pat: Convert __set_pmd_pte() to ptdescs
  x86/mm/pat: Use IS_ENABLED() instead of ifdef
 2026-08-18 17:44:09 -07:00
Linus Torvalds
2385c8b47b Merge tag 'x86_tdx_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 TDX updates from Dave Hansen:
 "TDX guests cause #VE exceptions whenever they do port I/O. The guest
  then does some instruction decoding and makes a call up to the host
  for help. That decoding had a couple of bugs.

  Fix those bugs. Use an existing and now shared KVM helper for one of
  them"

* tag 'x86_tdx_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tdx: Fix zero-extension for 32-bit port I/O
  x86/insn-eval: Move assign_register() out of KVM as insn_assign_reg()
  x86/tdx: Fix off-by-one in port I/O handling
 2026-08-18 17:41:36 -07:00
Linus Torvalds
058f2c4b75 Merge tag 'x86_misc_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull misc x86 updates from Dave Hansen:
 "Just adding some documentation and removing a super stale comment
  about an LED driver that was moved long ago:

   - Document the intricacies of GS context switching

   - Remove old TODO message about Geode LED driver"

* tag 'x86_misc_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform/geode: Remove old TODO message about leds-net5501.c
  Documentation/x86: Document the intricacies of GS context switching
 2026-08-18 17:40:06 -07:00
Linus Torvalds
23eb790181 Merge tag 'x86_entry_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 entry update from Dave Hansen:
 "Fix frame pointer unwinder when it encounters FRED stack frames"

* tag 'x86_entry_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/entry/fred: Encode frame pointer on entry
 2026-08-18 17:38:30 -07:00
Linus Torvalds
104a813376 Merge tag 'timers-vdso-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull VDSO updates from Thomas Gleixner:

 - Consolidate the VDSO datastore further and provide support for
   mlock_all() and prefaulting.

 - Provide 32-bit legacy time related functionality only if
   CONFIG_COMPAT_32BIT_TIME is enabled. The config switch exists,
   but architecture code still exposes the legacy functionality even
   disabled.

   Clean this up by adding the missing guards and validating at build
   time that the VDSO is legacy free if disabled.

 - Consolidate the VDSO related config options in core and drivers,
   which removes some non-sensical dependencies and quite an amount of
   #ifdeffery.

 - Clean up the PAGE_SIZE definition maze

* tag 'timers-vdso-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
  random: vDSO: Drop custom PAGE_SIZE definitions
  LoongArch: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
  clocksource/drivers/timer-riscv: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
  clocksource/drivers/arm_arch_timer: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
  clocksource/drivers/mips-gic-timer: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
  MIPS: csrc-r4k: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
  vDSO: Make clockmode constants available without CONFIG_GENERIC_GETTIMEOFDAY
  kbuild: Support generated asm-headers in subdirectories
  vdso: Rename HAVE_GENERIC_VDSO to VDSO_DATASTORE
  vdso: Drop HAVE_GENERIC_VDSO from architecture kconfig files
  vdso: Automatically select HAVE_GENERIC_VDSO if necessary
  MIPS: vdso: Stop using CONFIG_HAVE_GENERIC_VDSO
  vdso: Remove the dependency on HAVE_GENERIC_VDSO from ARCH_HAS_VDSO_ARCH_DATA
  futex: Remove dependency on HAVE_GENERIC_VDSO from FUTEX_ROBUST_UNLOCK
  vdso/gettimeofday: Verify COMPAT_32BIT_TIME interactions
  sparc: vdso: Respect COMPAT_32BIT_TIME
  MIPS: VDSO: Respect COMPAT_32BIT_TIME
  powerpc/vdso: Respect COMPAT_32BIT_TIME
  ARM: VDSO: Respect COMPAT_32BIT_TIME
  arm64: vdso32: Respect COMPAT_32BIT_TIME
  ...
 2026-08-18 16:56:25 -07:00
Linus Torvalds
3b4128b9f3 Merge tag 'timers-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull timer and timekeeping core updates from Thomas Gleixner:

 - Fix a subtly inconsistency in the timekeeping code, which fails to
   account for the monotonicity adjustment in ntp_error.

   For small changes of the clocksource multiplicator (+/-1) which are
   typically used by the NTP PLL this is hard to observe. But for larger
   adjustments, e.g. caused by a direct frequency setting through
   adjtimex() the one-time uncompensated offset is significant.

   Cure this by adjusting ntp_error with the resulting offset so that
   the discrepancy is smoothed away over time

 - Make tick length calculations correct in NTP.

   The timekeeping core takes the quantisation of the clocksource into
   account when calculating the tick length to compensate for the
   deviation of the nominal NTP_INTERVAL_LENGTH.

   While timekeeping gets this right, NTP is not aware of that, which
   means it operates on the nominal value and not on the actual value
   which is determined by the clock source frequency. The rounding of a
   coarse clocksource like the ACPI PM timer results in a +127 PPM
   deviation.

   Cure this by exposing the deviation to the NTP code so that it can
   operate on the same data as the timekeeping core. This is purely
   kernel internal. User space still sees the nominal tick lenght via
   adjtimex().

 - The accuracy of the NTP adjustments is fairly approximate as the code
   assumes that the invocations are precisely in NTP interval frequency
   ticks and the final adjustment can over and under-run.

   Cure this by adjusting ntp_error by the intended skew on each tick to
   achieve the desired rate.

 - Handle the two competing skews of time offset and time adjustment
   correctly by calculating the conflict portion between the skews and
   adjusting both accordingly.

 - A set of updates and improvements for the selftests

 - The usual small fixes and improvements all over the place

* tag 'timers-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits)
  selftests: timers: nsleep-lat: Check all calls to clock_nanosleep() and clock_gettime()
  selftests: timers: nsleep-lat: Reuse kselftest error numbers
  selftests: timers: nsleep-lat: Explicitly list the tested clocks
  selftests: timers: nsleep-lat: Use NSEC_PER_MSEC define for unreasonable latency
  selftests: timers: nanosleep: Report each test separately
  selftests: timers: nanosleep: Explicitly handle timer_delete() failure
  selftests: timers: nanosleep: Move all single clock tests out of the loop in main()
  selftests: timers: nanosleep: Reuse kselftest error numbers
  selftests: timers: nanosleep: Explicitly list the tested clocks
  selftests: timers: nanosleep: Drop output alignment
  selftests: timers: Use clock_name() and constants from clock-helpers.h
  selftests: Add clock-helpers.h
  timer_list: Use ktime_t over nanoseconds
  timer_list: Use standard 'long long' format placeholders
  hrtimer: Add a lockdep assertion to hrtimer_update_base()
  timekeeping: Use u32 for clock_was_set_seq
  timekeeping: Rename clockid_aux_valid() to clockid_is_aux_clock()
  hrtimer: Account nr_retries on recovered interrupt retries
  timers/itimer: Zero-init old itimerval before copy to userspace
  nohz: Replace dead select with choice default
  ...
 2026-08-18 16:23:56 -07:00
Linus Torvalds
b0239dd672 Merge tag 'timers-clocksource-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull clocksource/event driver updates from Thomas Gleixner:

 - Remove redundant dev_err() and dev_err_probe() invocations in various
   drivers

 - Handle SWAP_IO_SPACE correctly in the rtl-otto driver

 - Make the Samsumg PWM timer driver PREEMPT_RT compatible

 - Ensure that the SUN4I timer is programmed with a delta larger than
   zero as a zero delta causes the the timer to be disabled

 - The usual fixes and improvements all over the place

* tag 'timers-clocksource-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/armada: Unwind timer clock on init failure
  clocksource/drivers/rtl-otto: Change driver to use __raw reads and writes
  clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type
  clocksource/drivers/clps711x: Do not unmap clocksource MMIO
  clocksource/drivers/nxp-pit: Fix IRQ leak on cpuhp_setup_state error path
  clocksource/drivers/timer-sun4i: Advertise a real minimum delta
  clocksource: Remove redundant dev_err()/dev_err_probe()
  clocksource/drivers/sh_cmt: Use named initializers for platform_device_id arrays
  clocksource/drivers/sh_mtu2: Drop unused assignment of platform_device_id
 2026-08-18 16:20:25 -07:00
Linus Torvalds
030c9f813b Merge tag 'timers-cleanups-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull treewide timer related cleanups from Thomas Gleixner:

 - Remove the leftover CLOCK_TICK_RATE which has been scheduled for
   removal more than a decade ago along with some now empty asm/timex.h
   files.

 - Consolidate delay timer calibration

   The construct of having a define in a header requires that
   architectures provided asm/timex.h for no reason. Also the function
   name for reading the delay timer is confusing at best.

   Use a config switch to enable that functionality and rename the
   function to delay_read_timer() to make the purpose clear.

   This removes some more now empty asm/timex.h files as well.

* tag 'timers-cleanups-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  calibrate: Rework delay timer calibration
  treewide: Remove CLOCK_TICK_RATE
  x86: Use PIT_TICK_RATE instead of CLOCK_TICK_RATE
 2026-08-18 15:58:29 -07:00
Linus Torvalds
0dd1a54f44 Merge tag 'smp-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull SMP core updates from Thomas Gleixner:

 - Reduce the preemption disabled sections in smp_call_function*().

   The various smp call functions keep preemption disabled accross the
   full operation which includes the wait for completion. Especially the
   latter can take some time when one of the target CPUs is not
   immediately responding to the IPI, which can result in large latency
   spikes.

   To improve this provide a per task CPU mask to track the CPUs to wait
   for. That makes the information required for the wait task local and
   therefore allows to reenable preemption before the wait.

   While this comes with moderate extra memory cost this reduces SMP
   function call induced latency measured in a fleet for high priority
   tasks from ~17ms to ~1.5ms (~90%).

 - Reduce the overhead of the CSD debug code by replacing the heavy
   memory barriers with smp_store_release()/acquire()

 - Remove obsolute unused hotplug states

* tag 'smp-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  scftorture: Remove preempt_disable() in scftorture_invoke_one()
  smp: Remove preempt_disable() from on_each_cpu_cond_mask()
  smp: Remove preempt_disable() from smp_call_function()
  smp: Enable preemption early in smp_call_function_many_cond()
  smp: Alloc percpu csd data in smpcfd_prepare_cpu() only once
  smp: Use task-local IPI cpumask in smp_call_function_many_cond()
  smp: Refactor remote CPU selection in smp_call_function_any()
  smp: Enable preemption early in smp_call_function_single()
  smp: Disable preemption explicitly in __csd_lock_wait()
  cpu/hotplug: Remove CPUHP_AP_ARM_CORESIGHT_CTI_STARTING
  smp: Use release stores for csd_lock_record() state
 2026-08-18 15:29:53 -07:00
Linus Torvalds
b844715e8a Merge tag 'locking-futex-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull futex updates from Thomas Gleixner:

 - Improvements to various futex self tests:

    - Conversion to the selftest harness

    - Provide and use thread creation and synchronization helpers to
      reduce the dependency on delays, which tend to fail on loaded test
      systems

    - New tests for validating owner exit scenarios for robust and PI
      futexes

    - Runtime detect supported features and skip the tests if the kernel
      has no support

 - A few minor fixes

* tag 'locking-futex-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  selftests/futex: Give circular-list nodes static storage
  selftests/futex: Use thread synchronization helpers instead of usleep()
  selftests/futex: Provide thread creation and synchronization helpers
  selftests/futex: Dynamically skip unsupported tests
  selftests/futex: Add FUTEX_LOCK_PI owner-exiting coverage
  selftests/futex: Migrate robust_list to harness
  selftests/futex: Migrate futex_priv_hash to harness
  selftests/futex: Migrate futex_numa_mpol to harness
  selftests/futex: Migrate futex_requeue_pi_signal_restart to harness
  selftests/futex: Migrate futex_requeue_pi_mismatched_ops to harness
  selftests/futex: Migrate futex_requeue_pi to harness
  selftests/futex: Migrate futex_requeue to harness
  selftests/futex: Migrate futex_wait_uninitialized_heap to harness
  selftests/futex: Migrate futex_wait_private_mapped_file to harness
  selftests/futex: Migrate futex_wait to harness
  selftests/futex: Correct validation logic in waitv
  selftests/futex: Migrate functional tests to harness
  selftests/futex: Remove static keyword from 'head'
  futex: Remove unnecessary NULL check before kvfree()
  selftests/rseq: Replace glibc-specific __GNUC_PREREQ with portable check
 2026-08-18 15:26:35 -07:00
Linus Torvalds
8b5d31123f Merge tag 'irq-drivers-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull interrupt chip driver updates from Thomas Gleixner:

 - Update the realtek-rtl driver to support multiple interrupt domains
   and remove hardcoded assumptions about the underlying demultiplex
   interrupt

 - Remove the unused IMGPDC driver, which got orphaned when the metag
   architecture was removed long ago.

 - Update the Qualcom PDC interrupt chip driver to support differnent
   versions of the IP block, to properly differentiable between direct
   and GPIO based interrupts and to utilize pass through mode to the
   underlying GIC interrupt.

 - Remove redundant dev_err() and dev_err_probe() invocations in various
   drivers as that error logging has been moved to devm_request_*_irq().

 - Support dynamic MSI-X allocations in the GIC-V3-ITS MSI parent domain
   driver. That's important for VFIO pass through devices to avoid
   reinitialization of the MSI-X space when extending the vector range.
   Such a reinitialization can result is lost interrupts and stale
   devices.

 - Fix a bunch of resource leaks in various driver error paths

 - The usual small improvements all over the place

* tag 'irq-drivers-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
  irqchip/gic-v3-its: Fix grammar and replace a bit number with its symbol
  irqchip/gic-v3-its: Prevent leak in its_vpe_irq_domain_alloc()
  irqchip/renesas-irqc: Fix generic interrupt chip leak on remove
  irqchip/gic-v3-its: Enable dynamic MSI-X allocation
  irqchip: Remove redundant dev_err()/dev_err_probe()
  irqchip/gic-v5/iwb: Fix stray verb in comment
  irqchip/qcom-pdc: Fix kernel doc for qcom_pdc_gic_secondary_set_type()
  irqchip/gic-v3-its: Fix its node leak in gic_acpi_parse_madt_its()
  irqchip/gic-v3-its: Fix memleak in its_probe_one()
  irqchip/qcom-pdc: Configure PDC to pass through mode
  irqchip/qcom-pdc: Differentiate between direct SPI and GPIO as SPI
  irqchip/qcom-pdc: Move all static variables to struct pdc_desc
  irqchip/qcom-pdc: Restructure version support
  irqchip/irq-imgpdc: Remove unused driver
  irqchip/irq-realtek-rtl: Activate multiple parents
  irqchip/irq-realtek-rtl: Allow shuffled interrupt order
  irqchip/irq-realtek-rtl: Add a select function
  irqchip/irq-realtek-rtl: Add mask for interrupt handling
  irqchip/irq-realtek-rtl: Add interrupt data structure
  irqchip/irq-realtek-rtl: Split out parent setup code
  ...
 2026-08-18 15:24:18 -07:00
Linus Torvalds
762fffa407 Merge tag 'irq-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull generic interrupt subsystem updates from Thomas Gleixner:

 - Remove pointless NULL checks of the kstats_irqs field. That's a
   historical left over and not longer required.

 - Add Radu Rendec as reviewer. Radu thankfully stepped up to help
   reviewing the interrupt core and the related drivers code.

 - The usual small improvements and fixes

* tag 'irq-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  MAINTAINERS: Add Radu Rendec as reviewer for the interrupt subsystem
  genirq/msi: Move misplaced EXPORT_SYMBOL_GPL for msi_domain_free_irqs_all()
  parisc: Remove unnecessary NULL check of the kstat_irqs field
  genirq: Remove unnecessary NULL check of the kstat_irqs field
  irqdomain: Remove unnedded NULL check in __irq_domain_[de]activate_irq()
  genirq/manage: Use irqd_get_parent_data() helper in __irq_get_irqchip_state()
  irqdomain: Plug leak in irq_domain_alloc_irqs_locked() error path
 2026-08-18 15:19:50 -07:00
Linus Torvalds
6138016752 Merge tag 'core-rseq-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull rseq updates from Thomas Gleixner:
 "Two trivial updates for RSEQ:

   - Add the recently added new test binaries to .gitignore

   - Fix a trivial typo in a comment"

* tag 'core-rseq-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  selftests/rseq: Add missing test binaries to .gitignore
  selftests/rseq: Fix spelling of accommodate
 2026-08-18 15:16:10 -07:00
Linus Torvalds
3424d8c18a Merge tag 'core-entry-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull generic entry code updates from Thomas Gleixner:

 - Make syscall user dispatching configurable

   Not all architectures can makes use of syscall user dispatching.
   Allow them to disable the feature completely.

 - Consolidate stack randomization for the generic entry code and the
   architectures using it.

   Stack randomization on syscall entry was sprinkled throughout the
   architecture specific low level entry code and in some cases at the
   wrong points, e.g. before establishing state, which violates the
   non-instrumentable constraints of that code.

   Clean this up by integrating stack randomization into the generic
   entry code helpers so that it is invoked at the earliest possible
   point right after establishing state and converting all generic entry
   code using architecture over.

 - Clean up the syscall number handling in the generic entry code. It
   works correctly for architectures which have a separate return value
   storage in pt_regs, but fails to distinguish the case where user
   space handed in -1 as syscall number from the case where the entry
   code rejects it by returning -1 to the callers. Aside of that the
   return value functionality of those interfaces is not really
   intuitive.

   Fix this by separating the decision to reject a syscall (user
   dispatch, ptrace, seccomp ...) from the potential modification of the
   syscall number through these mechanisms.

   This solves most of the problems for architectures which do not have
   a separate return value storage in pt_regs except for the case where
   a tracepoint has a BPF script or a probe attached which overwrite
   both the syscall number and the return value. But that's a problem
   which cannot be solved in the generic code, that only can be
   addressed by separating the storage model in the affected
   architectures.

* tag 'core-entry-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  entry, treewide: Make syscall_enter_from_user_mode[_work]() indicate syscall execution
  entry: Make return type of syscall_trace_enter() bool
  entry: Rework trace_syscall_enter()
  entry: Rework syscall_audit_enter()
  syscall_user_dispatch: Introduce ARCH_SUPPORTS_SYSCALL_USER_DISPATCH
  entry: Fix seccomp bypass after ptrace with TSYNC
  x86/entry: Simplify the syscall number logic
  x86/entry: Get rid of the sys_ni_syscall() indirection
  x86/entry: Make syscall functions static
  ptrace, treewide: Rename ptrace_report_syscall_entry() to ptrace_report_syscall_permit_entry()
  seccomp, treewide: Rename and convert __secure_computing() to return boolean
  entry: Use syscall number instead of rereading it
  entry: Remove syscall_enter_from_user_mode()
  x86/syscall: Use [syscall_]enter_from_user_mode_randomize_stack()
  s390/syscall: Use enter_from_user_mode_randomize_stack()
  riscv/syscall: Use syscall_enter_from_user_mode_randomize_stack()
  powerpc/syscall: Use syscall_enter_from_user_mode_randomize_stack()
  loongarch/syscall: Use syscall_enter_from_user_mode_randomize_stack()
  entry: Provide [syscall_]enter_from_user_mode_randomize_stack()
  randomize_kstack: Provide add_random_kstack_offset_irqsoff()
  ...
 2026-08-18 15:00:56 -07:00
Linus Torvalds
3a0dd7ba4f Merge tag 'x86-documentation-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 documentation updates from Ingo Molnar:

 - Misc x86 documentation updates (Randy Dunlap, Daniel Gibson)

* tag 'x86-documentation-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Documentation/arch/x86/amd-debugging: Add example for reset register
  x86/intel/quark: Clean up function kernel-doc
  x86/speculation: Drop Excess function parameter descriptions
  x86/lib: checksum_64.h: Eliminate all kernel-doc warnings
  x86/barrier: Use correct parameter names in kernel-doc
 2026-08-18 14:13:43 -07:00
Linus Torvalds
d5b550edad Merge tag 'x86-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 core updates from Ingo Molnar:

 - Optimize the kcfi call sequence (Peter Zijlstra)

 - Use sfence for wmb() if SSE is available (Yao Zi)

* tag 'x86-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/locking: Use sfence for wmb() if SSE is available
  x86/kcfi: Optimize call sequence
 2026-08-18 14:08:57 -07:00
Linus Torvalds
3dd1f7447f Merge tag 'x86-build-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 build update from Ingo Molnar:

 - Only align ENTRY_TEXT to PMD_SIZE if necessary (Hamza Mahfooz)

* tag 'x86-build-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/build: Only align ENTRY_TEXT to PMD_SIZE if necessary
 2026-08-18 14:06:52 -07:00
Linus Torvalds
09d639f1f1 Merge tag 'x86-boot-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 boot updates from Ingo Molnar:

 - Misc simplifications and cleanups (Thorsten Blum)

* tag 'x86-boot-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Use bool and IS_ENABLED() to simplify query_edd()
  x86/boot: Use IS_ENABLED() to simplify built-in-or-module checks
  x86/purgatory: Return bool from verify_sha256_digest()
 2026-08-18 14:04:48 -07:00
Linus Torvalds
8dcef8882a Merge tag 'x86-msr-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 MSR updates from Ingo Molnar:

 - Streamline the x86 MSR handling APIs along the 64-bit variants,
   simplifying the interfaces.

   Removal of the old APIs is planned for the next cycle, to reduce
   churn & integration pain (Juergen Gross)

* tag 'x86-msr-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
  x86/mce: Work around build warning after MSR-interface switch
  cpufreq: Stop using 32-bit MSR interfaces
  x86/featctl: Stop using 32-bit MSR interfaces
  KVM/x86: Stop using 32-bit MSR interfaces
  x86/mtrr: Stop using 32-bit MSR interfaces
  acpi: Stop using 32-bit MSR interfaces
  powercap: Stop using 32-bit MSR interfaces
  thermal/intel: Stop using 32-bit MSR interfaces
  x86/olpc: Stop using 32-bit MSR interfaces
  x86/hyperv: Stop using 32-bit MSR interfaces
  hwmon: Stop using 32-bit MSR interfaces
  EDAC: Stop using 32-bit MSR interfaces
  x86/cpu: Stop using 32-bit MSR interfaces
  x86/apic: Stop using 32-bit MSR interfaces
  x86/resctrl: Stop using 32-bit MSR interfaces
  x86/tsc: Stop using 32-bit MSR interfaces
  x86/amd: Stop using 32-bit MSR interfaces
  x86/pci: Stop using 32-bit MSR interfaces
  x86/hygon: Stop using 32-bit MSR interfaces
  x86/mce: Stop using 32-bit MSR interfaces
  ...
 2026-08-18 14:02:15 -07:00
Linus Torvalds
e2457a664e Merge tag 'sched-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull scheduler updates from Ingo Molnar:
 "Load-balancing updates:

   - 'flatten the pick': improve cgroup scheduling, which has always
     been problematic and painful, which has caused various scheduling
     misbehavior such as the mishandling of reniced tasks et al.

     Add various cgroup weight distribution methods via cgroup_mode:
     'up', 'max', 'concur' and 'tasks' - with the default being 'concur'
     which is the most precise yet also most expensive version.

     Finally, change cgroup scheduling to a single runqueue (Peter
     Zijlstra)

   - Series to improve the scheduling latency of short slice tasks
     (Vincent Guittot)

   - Series to fix cluster scheduling in the presence of asymmetric
     capacity (Ricardo Neri)

   - Prefer fully idle cores for NOHZ balancing (Andrea Righi)

   - Don't trigger active load-balancing if src_rq->curr is not on_rq
     (Xin Zhao)

  PSI updates:

   - Skip irqtime accounting when no new irq time has elapsed (Usama
     Arif)

  Scheduler debugging updates:

   - Remove unused schedstats (Shrikanth Hegde)

   - Defer freeing of cpumask memblock memory to initcall (Waiman Long)

  Misc fixes and updates by Yu C Chen, K Prateek Nayak, Peter Zijlstra,
  Vincent Guittot, Xin Zhao, Yury Norov, Zhan Xusheng"

* tag 'sched-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
  sched/fair: Fix flat hierarchy
  sched/isolation: Defer freeing of cpumask memblock memory to initcall
  sched/topology: Restore SD_PREFER_SIBLING in domains with asymmetric capacity
  sched/fair: Allow load balancing between CPUs of identical capacity
  sched/fair: Skip misfit load accounting when the destination CPU cannot help
  sched/fair: Check CPU capacity before comparing group types during load balance
  sched/fair: Also gate overloaded status update for SD_ASYM_CPUCAPACITY
  sched/fair: Do not skip CPUs of similar capacity with busy SMT siblings
  sched/fair: Prefer fully idle cores for NOHZ balancing
  stop_machine: Make stop_one_cpu_nowait() return void
  sched/eevdf: Delayed dequeue task can't preempt
  sched/fair: Fix stale comments referring to removed CFS concepts
  sched/debug: Remove unused schedstats
  sched/psi: skip irqtime accounting when no new irq time has elapsed
  sched/fair: Reflow sched_balance_rq()
  sched/fair: Simplify balance_interval reset logic in sched_balance_rq()
  sched/fair: Don't trigger active lb if src_rq->curr is not on_rq
  sched/eevdf: Speedup short slice task scheduling
  sched/eevdf: Always update slice protection
  sched/eevdf: Cancel slice protection if short slice task is eligible
  ...
 2026-08-18 13:39:48 -07:00
Linus Torvalds
dfa35434d7 Merge tag 'locking-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull locking updates from Ingo Molnar:
 "Futexes:

   - Use runtime constants for futex_hash computation (K Prateek Nayak,
     Peter Zijlstra)

   - Optimise the size check get_futex_key() (Sebastian Andrzej Siewior)

   - Avoid private hash use-after-free on final put (Felix Hoffmann)

   - Tell kmemleak we're not leaking __futex_queues (Peter Zijlstra)

  Rust integration updates:

   - Implement refcounted interrupt disable and SpinLockIrq for Rust
     (Boqun Feng, Heiko Carstens, Joel Fernandes, Lyude Paul)

   - Rust sync: add helpers for mb, dma_mb and friends; add generic
     memory barriers and use LKMM atomics instead of Rust atomics in the
     revocable code (Gary Guo)

   - Add abstraction and integrate synchronize_rcu() (Philipp Stanner)

  Lock debugging:

   - Add qspinlock contended_release tracepoint (Dmitry Ilvokhin, Peter
     Zijlstra)

   - Enable the printing of held locks of remote running tasks and print
     task CPU (Ingo Molnar)

   - percpu-rwsem: Annotate intentional data race in readers_active_check()
     (Sun Shaojie)

  Misc fixes and updates by Boqun Feng, Peter Zijlstra, Fangrui Song,
  Naveen Kumar Chaudhary and Thomas Huth"

* tag 'locking-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
  rust: sync: Introduce SpinLockIrq::lock_with() and friends
  rust: sync: Add SpinLockIrq
  rust: sync: Use super::* in spinlock.rs
  rust: helper: Add spin_{un,}lock_irq_{enable,disable}() helpers
  rust: Introduce interrupt module
  s390/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
  arm64: sched/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
  preempt: Introduce HAS_SEPARATE_PREEMPT_RESCHED_BITS
  sched: Avoid signed comparison of preempt_count() in __cant_migrate()
  sched: Remove the unused preempt_offset parameter of __cant_sleep()
  locking: Switch to _irq_{disable,enable}() variants in cleanup guards
  irq: Add KUnit test for refcounted interrupt enable/disable
  irq,spin_lock: Add counted interrupt disabling/enabling
  openrisc: Include <linux/cpumask.h> in smp.h
  preempt: Introduce __preempt_count_{sub,add}_return()
  preempt: Introduce HARDIRQ_DISABLE_BITS
  preempt: Track NMI nesting to separate per-CPU counter
  futex: Tell kmemleak we're not leaking __futex_queues
  x86/paravirt: Trace contended_release on unlock
  tracing/lock: Use TRACE_EVENT_FN() for contended_release
  ...
 2026-08-18 13:07:17 -07:00
Linus Torvalds
8915457146 Merge tag 'perf-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull performance events updates from Ingo Molnar:
 "uprobes updates:

   - Fix a category of bugs with optimized uprobes that can clobber the
     redzone area with call instruction storing return address on stack
     where user code may keep temporary data without adjusting RSP.

     Fix this by moving the optimized uprobes on top of 10-bytes NOP
     instruction, so we can squeeze another instruction to escape the
     redzone area before doing the call (Jiri Olsa, Andrii Nakryiko)

   - Switch uretprobes_srcu to SRCU-fast-updown, to improve performance
     (Puranjay Mohan)

  Intel CPU PMU driver updates:

   - Optimize ACR handling in match_prev_assignment() (Dapeng Mi)

   - Fix various PMU driver bugs and data leaks (Dapeng Mi)

   - Fix Intel PT stop/start with no update (Adrian Hunter)

  Intel uncore PMU driver updates:

   - Fix various uncore PMU setup robustness bugs (Zide Chen)

  AMD uncore PMU driver updates:

   - Add group validation (Sandipan Das)

  .. and misc fixes and updates by Dapeng Mi, Randy Dunlap and Zide Chen"

* tag 'perf-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
  perf/x86: Optimize ACR handling in match_prev_assignment()
  perf/x86/intel: Fix intel_cap handling on hybrid PMUs
  perf/x86: Remove stale fixed counter helper and fix hybrid PMU access
  perf/x86/intel: Unwind cpuc state if PEBS buffer setup fails
  perf/x86: Guard intel_pmu_cpu_dead() against invalid hybrid PMU casts
  perf/x86: Free hybrid state on PMU init failure
  perf/x86: Unregister PMI handler on PMU init failure
  perf/x86/intel/pt: Fix stop/start with no update
  perf/x86/intel/pt: Use bitwise access for PERF_HES_STOPPED
  perf/x86/intel/pt: Factor out pt_config_enable()
  uprobes: Switch uretprobes_srcu to SRCU-fast-updown
  srcu: Add lock guard for srcu_fast_updown flavor
  perf/x86/intel/pt: Drop kernel-doc for deleted struct members
  perf/x86/amd/uncore: Add group validation
  selftests/bpf: Add tests for forked/cloned optimized uprobes
  selftests/bpf: Add tests for uprobe nop10 red zone clobbering
  selftests/bpf: Add reattach tests for uprobe syscall
  selftests/bpf: Change uprobe/usdt trigger bench code to use nop10
  selftests/bpf: Change uprobe syscall tests to use nop10
  selftests/bpf: Emit nop,nop10 instructions combo for x86_64 arch
  ...
 2026-08-18 12:31:07 -07:00
Linus Torvalds
a0acd94e38 Merge tag 'objtool-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull objtool updates from Ingo Molnar:

 - Fix various klp-build bugs reported by Joe Lawrence (Josh Poimboeuf,
   Joe Lawrence)

 - Misc fixes and cleanups (Puranjay Mohan, Thomas Huth and Ingo Molnar)

* tag 'objtool-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool/klp: Fix vmlinux klp relocations for EXPORT_SYMBOL_FOR_MODULES()
  objtool/klp: Fix .kcfi_traps special section extraction
  objtool/klp: Fix vmlinux .klp.symid link error for .exitcall.exit symbols
  objtool/klp: Fix line numbers in Module.symvers parse errors
  objtool/klp: Fix relocations for EXPORT_SYMBOL_FOR_MODULES() symbols
  objtool/klp: Allow new references to module exports
  objtool/klp: Don't match local symbols against exports
  objtool/klp: Fix cross-module klp relocation section naming
  objtool/klp: Explicitly disallow patching or referencing init code/data
  objtool/klp: Ignore replacement offset of empty x86 alternatives
  objtool/klp: Fix size of empty special section entries
  objtool/klp: Fix vmlinux .klp.symid link error for .no_trim_symbol symbols
  objtool/headers: Sync tools/include/linux/objtool_types.h with include/linux/objtool_types.h
  objtool: Replace __ASSEMBLY__ with __ASSEMBLER__ in header files
  objtool/klp: Fix symbol resolution for duplicate data symbols
  objtool/klp: Add .klp.symid for sympos disambiguation
  objtool/klp: Skip hidden directories when finding objects
  objtool/klp: Fix false module dependencies caused by dead relocs
  objtool/klp: Normalize Module.symvers paths to module names
  objtool/klp: Fix module name normalization for paths with dots
 2026-08-18 12:18:33 -07:00
Linus Torvalds
1200d84f4c Merge tag 'powerpc-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux 
Pull powerpc updates from Madhavan Srinivasan:

 - Enable Rust for ppc64le

 - ppc4xx gpio driver updates

 - Add power12 base enablement support

 - Validate arch_compat against host compatibility mode

 - Simplify bootx_scan_dt_build_struct() in powermac platform

 - Implement get_direction() in cpm2

 - Use cpu_relax() in ps3_create_spu()

 - Add NULL guard for cause_ipi in smp_muxed_ipi_message_pass

 - Fixes to handle pseries watchdogs in kdump path

 - Fix missing r2 clobber in PCREL inline assembly

 - Set GPIO chip parent on ppc44x

 - KVM: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl

 - KVM: Use generic xfer to guest work function

 - Enable to run posix cpu timers in task context

 - Misc fixes and cleanups

Thanks to Aditya Gupta, Alice Ryhl, Amit Machhiwal, Andrew Morton,
Anushree Mathur, Athira Rajeev, Bartosz Golaszewski, Cédric Le Goater,
Christian König, Christophe Leroy (CS GROUP), Gary Guo, Gaurav Batra,
Gautam Menghani, Gou Hao, Hari Bathini, Harsh Prateek Bora, jiazhenyuan,
Jinjie Ruan, Link Mauve, Linus Walleij, Mahesh Kumar G Mahesh
Salgaonkar, Michael Walle, Michal Suchánek, Mukesh Kumar Chaurasiya
(IBM), Nicholas Piggin, Nikhil Kumar Singh, Praveen K Pandey, Ritesh
Harjani (IBM), Rosen Penev, Saket Kumar Bhaskar, Shrikanth Hegde,
Sourabh Jain, Thorsten Blum, Vaibhav Jain, Venkat Rao Bagalkote, Vishal
Chourasia, Wentao Guan, and Yanfei Xu.

* tag 'powerpc-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (62 commits)
  powerpc/pseries/iommu: switch to Default DMA window during kdump
  powerpc/configs: enable CONFIG_RAS to fix EDAC support
  KVM: PPC: Document KVM_PPC_GET_COMPAT_CAPS ioctl
  KVM: PPC: Book3S HV: Add support for compat CPU capabilities for KVM on PowerNV
  KVM: PPC: Book3S HV: Implement compat CPU capability retrieval for KVM on PowerVM
  KVM: PPC: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl
  gpio: ppc44x: use dev_name() for chip label
  gpio: ppc44x: fix undefined behavior in GPIO_MASK2 macro
  gpio: ppc44x: drop PPC-specific IO helpers
  gpio: ppc44x: Convert GPIO to generic MMIO
  gpio: ppc44x: Use platform resource helper for GPIO MMIO
  gpio: ppc44x: Use module platform driver helper for GPIO
  gpio: ppc44x: update all 4xx to 44x
  gpio: move ppc4xx gpio driver from arch/powerpc to drivers/gpio
  KVM: PPC: Use min() in kvm_vm_ioctl_check_extension()
  KVM: PPC: booke: Use min() in watchdog_next_timeout()
  powerpc/perf: Add power12 Base Performance Monitoring support
  powerpc: Add Power12 architected mode
  powerpc: Add Power12 raw mode
  powerpc/pseries: Limit PVR list to 16 entries for CAS negotiation
  ...
 2026-08-18 12:08:13 -07:00
Linus Torvalds
85cdaca697 Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux 
Pull arm64 updates from Will Deacon:
 "There's a reasonable amount of stuff here, including a bunch of
  updates to the perf PMU drivers and some MPAM updates to expose the
  memory bandwidth counters via resctrl.

  On the architecture side, some highlights include support for BBML3
  and steps towards support for an architectural NMI solution, all
  wrapped up in a web of fixes for latent issues identified by Sashiko.

  ACPI:

   - Combine reads of AMU counters into a single FFH feedback counter op

  Confidential computing:

   - Fix smp_processor_id() in preemptible context when retrieving an
     attestation token inside a realm

   - Convert pKVM over to a "CC platform"

   - Clean-up our SWIOTLB configuration in preparation for reworking the
     handling of encrypted/decryped DMA buffers in the dma-mapping tree

  CPU errata handling:

   - Work around broken device memory ordering on NVIDIA Olympus cores

   - Fix broken 'nospectre_bhb' command-line option

   - Select the idle loop backend instruction on the command-line

  CPU features:

   - Replace our BBML2-noabort feature with the new architectural BBML3
     feature

   - Disable in-kernel BTI for recent versions of Clang due to issues
     with livepatch that are still being investigated

   - Clean-up documentation describing which ID register fields are
     exposed to userspace

  Interrupts:

   - Preliminary work towards supporting FEAT_NMI, which cleans up our
     IRQ entry code and fixes some latent issues with pseudo-NMI

   - Support for an SDEI backend to trigger an NMI backtrace

  Memory management:

   - Treat all devices as coherent when CLIDR_EL1.LoC == 0

   - Fix no-map handling of sub-page-sized regions

   - Second attempt at unmapping the linear aliases of the kernel data
     and bss sections

   - Fix EFI runtime calls when software-PAN is enabled

  Miscellaneous:

   - Add Mark Rutland as a reviewer!

   - Tidy-up our futex cmpxchg logic when using the new LSUI
     instructions

   - Drop the requirement on DYNAMIC_FTRACE_WITH_CALL_OPS when
     selecting HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS

   - Fix a false-positive KCSCAN splat in the delay loop

   - Use a portable typedef for 128-bit scalar types in our UAPI headers

   - Non-critical fixes for Sashiko reports all over

  MPAM:

   - Hook MPAM memory bandwidth counters into resctrl's counter
     assignment interface

   - Fix a quirk in the MPAM bandwidth counting on Nvidia T241 so that
     it also applies to 63 bit counters

  Perf:

   - Workarounds for hardware issues in the CMN-S3 PMU (Graviton 5) and
     CPU PMU (NVIDIA Olympus again!)

   - Add support for the DDR PMU on Marvell CN20K SoCs

   - Add support for Picoheart implementations of the DCW PCIe PMU

   - Add support for Channel/Rank/Bank filtering in the CXL PMU driver

   - Add support for 64-bit counters in the CSPMU device

   - Add support for revision 2 of the CMN S3 PMU

  Ptrace:

   - Fix a decade-old bug in our handling of seccomp and tracing on
     syscall entry

   - Fix regset handling for inactive SVE and SSVE registers

  Selftests

   - Add some tests for the decade-old bug that we just tried to fix in
     our syscall entry path

   - Fix SVE test crash on SME-only CPUs"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (95 commits)
  arm64/efi: Avoid voluntary preemption with efi_mm installed
  arm64: bti: Disable in-kernel BTI with recent versions of Clang
  arm64: entry: Avoid unnecessary local_irq_disable() on kernel exit
  irqchip/gic-v3: make the unmasking of pseudo-NMIs explicit when handling IRQs
  arm64: Disable KCSAN instrumentation in delay.o
  arm_mpam: Disable driver unbind to avoid UAF
  arm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt
  perf: arm_pmuv3: Zero initialize hw_id branch stack field
  arm64: mm: Unmap kernel data/bss entirely from the linear map
  iommu/arm-smmu-v3-sva: Use system_supports_bbml3() to detect CPU feature
  perf/arm-cmn: Support CMN S3 r2
  perf/arm-cmn: Plumb in new filter types
  perf/arm-cmn: Refactor event filter data
  perf/arm-cmn: Refactor event filter programming
  perf/arm-cmn: Rename filter variables for clarity
  arm64: mm: fix accidental linear mapping of no-map reserved memory
  tools: Ensure tools copy of linux/filter.h exports the UAPI
  kselftest/arm64: Fix abi test compilation errors
  arch: arm64: add early_param idle=<wfi|yield|nop>
  arm64: entry: mask DAIF before returning from C EL1 handlers
  ...
 2026-08-18 11:57:17 -07:00
Linus Torvalds
d24f5cdbef Merge tag 'rust-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux 
Pull Rust updates from Miguel Ojeda:
 "Toolchain and infrastructure:

   - Warn when using 'bindgen' < 0.72.1 with 'libclang' >= 22, since
     that combination may fail to build. It includes a probe for the bug
     in case 'bindgen' happens to be patched, and tests

     In parallel, Nathan updated the instructions for the kernel.org
     LLVM+Rust toolchains so that the latest version of 'bindgen' is
     installed, which should avoid some of these situations

   - Support testing 'rust_is_available.sh' with 'bash' as '/bin/sh'

   - Fix an objtool warning by adding one more 'noreturn' function for
     Rust 1.99.0 (expected 2026-10-01)

   - Fix build error in the 'rusttest' target due to ambiguity when the
     'rustc-dev' component is installed, which was uncovered by the work
     to support Rust's GCC backend ('rustc_codegen_gcc')

   - Fix future Clang warnings in the upcoming powerpc support due to
     macro redefinitions in the UAPI helper header by including the
     arch-aware 'ioctl.h' header

  'kernel' crate:

   - Rework module ownership support:

       - Move the module-related types into a new 'module' module and
         make the 'THIS_MODULE' pointer a constant of 'ModuleMetadata'
         so that modules can provide the pointer in const contexts, and
         add a 'this_module' 'const fn' to retrieve it

         This was enabled by upstream Rust's work on the 'const_mut_refs'
         and 'const_refs_to_static' features which were stabilized back
         in Rust 1.83.0

       - Teach '#[vtable]' to associate implementations with their
         owning module, defaulting to the local one, including fallbacks
         for doctests, uses within the 'kernel' crate (like upcoming
         KUnit '#[test]'s for DRM) and 'rusttest'

       - Set 'fops.owner' from the module pointer for DRM and
         miscdevice

       - Migrate Rust Binder and configfs away from the old
         'THIS_MODULE' 'static' and finally remove it from the 'module!'
         macro

   - 'num' module:

       - Add the new 'casts' module for lossless integer conversions

         Rust's 'core' library's 'From' implementations do not cover
         conversions that are not portable or future-proof. However, the
         kernel supports a narrower set of architectures, which makes it
         helpful to provide more infallible conversions, instead of
         having developers use 'as' casts, which carry the risk of
         silently losing data

         This goes along with previous work we did to avoid casts in
         Rust kernel code since they are more powerful than needed

         Thus, provide safe 'const' conversion functions (e.g.
         'usize_as_u64' and 'u64_into_u8'), as well as the
         'FromSafeCast' and 'IntoSafeCast' extension traits that provide
         conversions that are known to be lossless in the kernel, and an
         'arch' submodule defining conversions that are known to be
         lossless on particular architectures (e.g. 64-bit platforms).
         For instance:

             // Conversion in const context.
             const USIZED_CONST: usize = u8_as_usize(255u8);

             // Non-const conversions.
             let a = u64::from_safe_cast(4096usize);
             let b: u64 = 4096usize.into_safe_cast();

       - Add 'Bounded::shr_exact' method in the vein of 'try_shrink'
         which shifts a bounded right only if it loses no set bits

       - Fix unsoundness issue in the 'Bounded::shr' method by
         rejecting, at compile-time, shifts of at least the type's bit
         width

   - 'fmt' module:

       - Route '{:p}' raw pointer formatting through the kernel's hashed
         '%p' format to prevent address leaks, including support for
         width and padding. Include tests for both 'no_hash_pointers'
         case and the default (hashed) one

       - Fix the '{:p}' forwarding implementation, which could print the
         address of a temporary stack variable

   - 'time' module:

       - Make 'Delta' generic over its time unit, with a default unit of
         nanoseconds ('Nsec'), preserving the existing behavior. Then,
         add a 'Jiffy' time unit

       - Add the 'Delta::as_millis_ceil()' method

       - Fix 'as_micros_ceil()' rounding near 'i64::MAX', which could
         yield a result one microsecond too small

   - 'sync' module:

       - Implement 'ForeignOwnable' for 'ARef<T>', allowing C code to
         own an 'ARef<T>'

       - Add a safe abstraction for 'rcu_barrier()'

   - 'error' module: add all of the remaining error codes, except the
     deprecated compatibility aliases

   - 'bug' module:

       - Fix build error on UML in 'warn_on!' for callers from within
         the 'kernel' crate

       - Fix future 'dead_code' warning on arm and loongarch64 and under
         'CONFIG_BUG=n' in 'warn_on!', which would trigger with the
         upcoming SRCU abstractions

       - Fix future build error in 'rusttest' on cross-compilation
         cases, which would trigger when 'warn_on!' has callers inside
         the 'kernel' crate

   - 'bitfield' module: fix build error for the upcoming support for
     Rust's GCC backend ('rustc_codegen_gcc') by always inlining a
     couple conversions used in tests

  'pin-init' crate:

   - User-visible changes:

       - Merge the '__pinned_init' and '__init' methods and make 'Init'
         a marker trait

       - Introduce public APIs 'raw_init' and 'raw_try_init' to prevent
         users from needing to invoke the internal '__pinned_init' and
         '__init' methods

       - Emit errors for duplicate '#[pin]' attributes

       - Link 'Zeroable::zeroed' and 'pin_init::zeroed' in documentation

   - Other changes:

       - Fix unwind safety issues

       - Clean up lint 'allow' and 'expect's

       - Overhaul '#[cfg]' handling to pave the way for tuple structs
         and self-referential structs

       - Mark many functions as '#[inline]' for better codegen with '-C
         opt-level=s' ('CC_OPTIMIZE_FOR_SIZE')

  'MAINTAINERS':

   - Update 'MODULE SUPPORT' to cover the new 'module' module

  And some other fixes, cleanups and improvements"

* tag 'rust-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (54 commits)
  rust: add functions and traits for lossless integer conversions
  rust: kernel: add `LocalModule` fallback for `#[vtable]` `impl`s
  rust: fmt: route {:p} through HashedPtr to prevent address leaks
  rust: fmt: fix {:p} printing stack addresses
  rust: module: update MAINTAINERS to cover module.rs
  rust: macros: remove `THIS_MODULE` static from `module!`
  rust_binder: use `LocalModule` for `THIS_MODULE`
  rust: configfs: use `LocalModule` for `THIS_MODULE`
  rust: miscdevice: set fops.owner from driver module pointer
  rust: drm: set fops.owner from driver module pointer
  rust: macros: auto-insert OwnerModule in #[vtable]
  rust: doctest: add LocalModule fallback for #[vtable] ThisModule
  rust: module: add `THIS_MODULE` const to `ModuleMetadata` trait
  rust: module: move module types into `module.rs`
  rust: num: add Bounded::shr_exact
  rust: num: reject Bounded::shr overshifts at build time
  rust: num: use const_assert! in Bounded
  rust: uapi: replace direct asm-generic/ioctl.h include with linux/ioctl.h
  rust: time: add Delta::as_millis_ceil()
  rust: time: add jiffies time unit for Delta
  ...
 2026-08-18 11:25:09 -07:00
Linus Torvalds
2df813c9a6 Merge tag 'for-linus-7.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip 
Pull xen updates from Juergen Gross:

 - Small cleanups for the Xen ACPI pad driver and the gnttab driver

 - Fix an issue with Xen PV device initialization seen with QubesOS
   tests

 - Fixes for the Xen balloon driver and the xenbus driver

 - Simplify Xen related kernel configuration

* tag 'for-linus-7.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xenbus: Unregister reboot notifier on init failure
  x86/xen: Drop CONFIG_XEN_PVHVM_SMP
  xen: Drop CONFIG_XEN_AUTO_XLATE
  xen: Drop CONFIG_XEN_PVHVM
  x86/xen: Remove redundant config dependency on X86_LOCAL_APIC
  x86/xen: fix init of balloon stats again
  xen/xenbus: check otherend_id only after it has been initialized
  xen/xenbus: log more information when device state got reset
  Xen/gnttab: adjust two uses of sizeof()
  ACPI: PAD: xen: Stop setting acpi_device_name/class()
 2026-08-18 11:19:37 -07:00