Commit Graph

1442251 Commits

Author SHA1 Message Date
Andy Shevchenko
7cde561300 HID: nintendo: Use %pM format specifier for MAC addresses
Convert to %pM instead of using custom code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://patch.msgid.link/20260603104351.152085-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
2026-06-12 14:20:26 +02:00
Andy Shevchenko
76c9ed5b81 vsprintf: Add upper case flavour to %p[mM]
Some of the (ABI aware) code needs an upper case when printing MAC
addresses. Introduce an extension for that into the existing %p[mM].

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://patch.msgid.link/20260603104351.152085-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
2026-06-12 14:20:25 +02:00
Linus Torvalds
b66cb4f156 printk changes for 7.1
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Merge tag 'printk-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

Pull printk updates from Petr Mladek:

 - Fix printk ring buffer initialization and sanity checks

 - Workaround printf kunit test compilation with gcc < 12.1

 - Add IPv6 address printf format tests

 - Misc code and documentation cleanup

* tag 'printk-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  printf: Compile the kunit test with DISABLE_BRANCH_PROFILING DISABLE_BRANCH_PROFILING
  lib/vsprintf: use bool for local decode variable
  lib/hexdump: print_hex_dump_bytes() calls print_hex_dump_debug()
  printk: ringbuffer: fix errors in comments
  printk_ringbuffer: Add sanity check for 0-size data
  printk_ringbuffer: Fix get_data() size sanity check
  printf: add IPv6 address format tests
  printk: Fix _DESCS_COUNT type for 64-bit systems
2026-04-20 15:42:18 -07:00
Linus Torvalds
ccbc9fdb32 Fix timer stalls caused by incorrect handling of
the dev->next_event_forced flag.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2026-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fix from Ingo Molnar:
 "Fix timer stalls caused by incorrect handling of the
  dev->next_event_forced flag"

* tag 'timers-urgent-2026-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clockevents: Add missing resets of the next_event_forced flag
2026-04-20 15:30:08 -07:00
Linus Torvalds
65e9974ae2 Remove the unused ARCH_SYSCALL_WORK_{ENTER,EXIT} flags.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'core-urgent-2026-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull entry cleanup from Ingo Molnar:
 "Remove the unused ARCH_SYSCALL_WORK_{ENTER,EXIT} flags"

* tag 'core-urgent-2026-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  entry: Kill ARCH_SYSCALL_WORK_{ENTER,EXIT}
2026-04-20 15:07:28 -07:00
Linus Torvalds
da6b5aae84 platform-drivers-x86 for v7.1-1
Highlights:
 
 - asus-wmi:
   - Retain battery charge threshold during boot which avoids unsolicited
     change to 100%. Return -ENODATA when the limit is not yet known
   - Improve screenpad power/brightness handling consistency
   - Fix screenpad brightness range
 
 - barco-p50-gpio: Normalize gpio_get return values
 
 - bitland-mifs-wmi: Add driver for Bitland laptops (supports platform
                     profile,hwmon, kbd backlight, gpu mode, hotkeys, and
                     fan boost)
 
 - dell_rbu: Fix using uninitialized value in sysfs write function
 
 - dell-wmi-sysman: Respect destination length when constructing enum
                    strings
 
 - hp-wmi:
   - Propagate fan setting apply failures and log an error
   - Fix sysfs write vs work handler cancel_delayed_work_sync() deadlock
   - Correct keepalive schedule_delayed_work() to mod_delayed_work()
   - Fix u8 underflows in GPU delta calculation
   - Use mutex to protect fan pwm/mode
   - Ignore kbd backlight and FnLock key events that are handled by FW
   - Fix fan table parsing (use correct field)
   - Add support for Omen 14-fb0xxx, 16-n0xxx, 16-wf1xxx, and Omen MAX
     16-ak0xxxx
 
 - input: trackpoint & thinkpad_acpi: Enable doubletap by default and
                                      add sysfs enable/disable
 
 - int3472: Add support for GPIO type 0x02 (IR flood LED)
 
 - intel-speed-select: (updated to v1.26)
   - Avoid using current base frequency as maximum
   - Fix CPU extended family ID decoding
   - Fix exit code
   - Improve error reporting
 
 - intel/vsec: Refactor to support ACPI-enumerated PMT endpoints.
 
 - pcengines-apuv2: Attach software node to the gpiochip
 
 - uniwill:
   - Refactor hwmon to smaller parts to accomodate HW diversity
   - Support USB-C power/performance priority switch through sysfs
   - Add another XMG Fusion 15 (L19) DMI vendor
   - Enable fine-grained features to device lineup mapping
 
 - wmi: Perform output size check within WMI core to allow simpler WMI
        drivers
 
 - acpi_driver -> platform driver conversions (a large number of changes
   from Rafael J. Wysocki)
 
 - Miscellaneous cleanups / refactoring / improvements
 
 The following is an automated shortlog grouped by driver:
 
 acer-wireless:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 asus-laptop:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 asus-wireless:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 asus-wmi:
  -  adjust screenpad power/brightness handling
  -  do not enforce a battery charge threshold
  -  fix screenpad brightness range
 
 barco-p50-gpio:
  -  convert to guard() notation
  -  normalize return value of gpio_get
 
 bitland-mifs-wmi:
  -  Add new Bitland MIFS WMI driver
 
 dell/dell-rbtn:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 dell_rbu:
  -  avoid uninit value usage in packet_size_write()
 
 dell-wmi-sysman:
  -  bound enumeration string aggregation
  -  Clean up security buffer helpers
  -  Fix typo in function comment
  -  Use standard kobj_sysfs_ops
  -  Use sysfs_emit{_at} in show functions
 
 Documentation: laptops:
  -  Update documentation for uniwill laptops
 
 Documentation:
  -  thinkpad-acpi - Document doubletap_enable attribute
 
 eeepc-laptop:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 fujitsu:
  -  Convert backlight driver to a platform one
  -  Convert laptop driver to a platform one
  -  Register ACPI notify handlers directly
  -  Reorder code to avoid forward declarations
 
 fujitsu-tablet:
  -  Convert ACPI driver to a platform one
 
 hp-wmi:
  -  add locking for concurrent hwmon access
  -  add Omen 14-fb0xxx (board 8C58) support
  -  Add support for Omen 16-n0xxx (8A44)
  -  Add support for Omen 16-wf1xxx (8C77)
  -  Add support for OMEN MAX 16-ak0xxx (8D87)
  -  avoid cancel_delayed_work_sync from work handler
  -  fix fan table parsing
  -  fix ignored return values in fan settings
  -  fix u8 underflow in gpu_delta calculation
  -  Ignore backlight and FnLock events
  -  use mod_delayed_work to reset keep-alive timer
 
 input:
  -  trackpoint - Enable doubletap by default on capable devices
 
 int3472:
  -  Add support for GPIO type 0x02 (IR flood LED)
  -  Parameterize LED con_id in registration
  -  Rename pled to led in LED registration code
  -  Use local variable for LED struct access
 
 intel/rst:
  -  Convert ACPI driver to a platform one
 
 intel/smartconnect:
  -  Convert ACPI driver to a platform one
 
 intel/tpmi:
  -  Use 32 bit aligned address for debugfs mem write
 
 intel/vsec:
  -  Decouple add/link helpers from PCI
  -  Make driver_data info const
  -  Plumb ACPI PMT discovery tables through vsec
  -  Refactor base_addr handling
  -  Return real error codes from registration path
  -  Switch exported helpers from pci_dev to device
 
 lg-laptop:
  -  Convert ACPI driver to a platform one
  -  Drop debug-only ACPI notify handler
 
 nvsw-sn2201:
  -  Drop unused include
 
 panasonic-laptop:
  -  Convert ACPI driver to a platform one
  -  Fix OPTD notifier registration and cleanup
  -  Make pcc_register_optd_notifier() void
  -  Register ACPI notify handler directly
  -  Remove redundant checks from 3 functions
 
 pcengines-apuv2:
  -  attach software node to the gpiochip
 
 sony-laptop:
  -  Convert NC driver to a platform one
  -  Convert PIC driver to a platform one
  -  Register ACPI notify handler directly
 
 surface: hotplug:
  -  Correct inclusion for GPIO APIs
 
 surface: surfacepro3_button:
  -  Convert to a platform driver
  -  Drop wakeup source on remove
  -  Register ACPI notify handler
 
 system76:
  -  Convert ACPI driver to a platform one
  -  Drop redundant devm_led_classdev_unregister()
  -  Register ACPI notify handler directly
 
 thinkpad_acpi:
  -  Add sysfs control for TrackPoint double-tap
  -  Drop ACPI driver registration
  -  remove obsolete TODO comment
  -  use seq_puts() instead of seq_printf()
 
 tools/power/x86/intel-speed-select:
  -  Avoid current base freq as maximum
  -  Fix cpu extended family ID decoding
  -  Fix output when running on unsupported CLX platforms
  -  Fix some program return value
  -  Print Version info when Incompatible API version is detected
  -  v1.26 release
 
 topstar-laptop:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 toshiba_acpi:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
  -  Reorder code to avoid forward declaration
 
 toshiba_bluetooth:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 toshiba_haps:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 uniwill-laptop:
  -  Apply features across all TUXEDO devices
  -  Fix signedness bug
  -  Fix XMG Fusion 15 (L19) entries
  -  Implement USB-C power priority setting
  -  Rework hwmon feature defines
 
 wireless-hotkey:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 wmi:
  -  Add wmidev_invoke_procedure()
  -  Convert drivers to use wmidev_invoke_procedure()
  -  Extend wmidev_invoke_method() to reject undersized data
  -  Extend wmidev_query_block() to reject undersized data
  -  Prepare to reject undersized unmarshalling results
  -  Replace .no_notify_data with .min_event_size
 
 x86:
  -  remove unnecessary module_init/exit() functions
 
 Merges:
  -  Merge branch 'intel-sst' of https://github.com/spandruvada/linux-kernel into review-ilpo-next
  -  Merge tag 'fixes' into 'for-next'
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Merge tag 'platform-drivers-x86-v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Ilpo Järvinen:
 "asus-wmi:
   - Retain battery charge threshold during boot which avoids
     unsolicited change to 100%. Return -ENODATA when the limit
     is not yet known
   - Improve screenpad power/brightness handling consistency
   - Fix screenpad brightness range

  barco-p50-gpio:
   - Normalize gpio_get return values

  bitland-mifs-wmi:
   - Add driver for Bitland laptops (supports platform profile,
     hwmon, kbd backlight, gpu mode, hotkeys, and fan boost)

  dell_rbu:
   - Fix using uninitialized value in sysfs write function

  dell-wmi-sysman:
   - Respect destination length when constructing enum strings

  hp-wmi:
   - Propagate fan setting apply failures and log an error
   - Fix sysfs write vs work handler cancel_delayed_work_sync() deadlock
   - Correct keepalive schedule_delayed_work() to mod_delayed_work()
   - Fix u8 underflows in GPU delta calculation
   - Use mutex to protect fan pwm/mode
   - Ignore kbd backlight and FnLock key events that are handled by FW
   - Fix fan table parsing (use correct field)
   - Add support for Omen 14-fb0xxx, 16-n0xxx, 16-wf1xxx, and
     Omen MAX 16-ak0xxxx

  input: trackpoint & thinkpad_acpi:
   - Enable doubletap by default and add sysfs enable/disable

  int3472:
   - Add support for GPIO type 0x02 (IR flood LED)

  intel-speed-select: (updated to v1.26)
   - Avoid using current base frequency as maximum
   - Fix CPU extended family ID decoding
   - Fix exit code
   - Improve error reporting

  intel/vsec:
   - Refactor to support ACPI-enumerated PMT endpoints.

  pcengines-apuv2:
   - Attach software node to the gpiochip

  uniwill:
   - Refactor hwmon to smaller parts to accomodate HW diversity
   - Support USB-C power/performance priority switch through sysfs
   - Add another XMG Fusion 15 (L19) DMI vendor
   - Enable fine-grained features to device lineup mapping

  wmi:
   - Perform output size check within WMI core to allow simpler WMI
     drivers

  misc:
   - acpi_driver -> platform driver conversions (a large number of
     changes from Rafael J. Wysocki)
   - cleanups / refactoring / improvements"

* tag 'platform-drivers-x86-v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (106 commits)
  platform/x86: hp-wmi: Add support for Omen 16-wf1xxx (8C77)
  platform/x86: hp-wmi: Add support for Omen 16-n0xxx (8A44)
  platform/x86: hp-wmi: Add support for OMEN MAX 16-ak0xxx (8D87)
  platform/x86: hp-wmi: fix fan table parsing
  platform/x86: hp-wmi: add Omen 14-fb0xxx (board 8C58) support
  platform/wmi: Replace .no_notify_data with .min_event_size
  platform/wmi: Extend wmidev_query_block() to reject undersized data
  platform/wmi: Extend wmidev_invoke_method() to reject undersized data
  platform/wmi: Prepare to reject undersized unmarshalling results
  platform/wmi: Convert drivers to use wmidev_invoke_procedure()
  platform/wmi: Add wmidev_invoke_procedure()
  platform/x86: int3472: Add support for GPIO type 0x02 (IR flood LED)
  platform/x86: int3472: Parameterize LED con_id in registration
  platform/x86: int3472: Rename pled to led in LED registration code
  platform/x86: int3472: Use local variable for LED struct access
  platform/x86: thinkpad_acpi: remove obsolete TODO comment
  platform/x86: dell-wmi-sysman: bound enumeration string aggregation
  platform/x86: hp-wmi: Ignore backlight and FnLock events
  platform/x86: uniwill-laptop: Fix signedness bug
  platform/x86: dell_rbu: avoid uninit value usage in packet_size_write()
  ...
2026-04-20 12:02:24 -07:00
Linus Torvalds
b69e478512 Backlight for v7.1
* Skyworks SKY81452:
     * Check the return value of `devm_gpiod_get_optional()` in `sky81452_bl_parse_dt()` to properly
       handle GPIO acquisition errors
 
   * Apple Backlight:
     * Convert the Apple Backlight ACPI driver to a proper platform driver, aligning with current ACPI
       binding practices
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Merge tag 'backlight-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:
 "Apple Backlight:
   - Convert the Apple Backlight ACPI driver to a proper platform
     driver, aligning with current ACPI binding practices

  Skyworks SKY81452:
   - Check the return value of `devm_gpiod_get_optional()`
     to properly handle GPIO acquisition errors"

* tag 'backlight-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: apple_bl: Convert to a platform driver
  backlight: sky81452-backlight: Check return value of devm_gpiod_get_optional() in sky81452_bl_parse_dt()
2026-04-20 11:49:38 -07:00
Linus Torvalds
d884efd340 LEDs for v7.1
* Core:
     * Implement fallback to software node name for LED names
     * Fix formatting issues in `led-core.c` reported by checkpatch.pl
     * Make `led_remove_lookup()` NULL-aware
     * Switch from `class_find_device_by_of_node()` to `class_find_device_by_fwnode()`
   * LGM SSO:
     * Fix a typo in the `GET_SRC_OFFSET` macro
   * Multicolor:
     * Fix a signedness error by changing the `intensity_value` type to `unsigned int`
   * Qualcomm LPG:
     * Prevent array overflow when selecting high-resolution values
   * TI LP8860:
     * Do not unconditionally program the EEPROM on probe
     * Hold the mutex lock for the entirety of the EEPROM programming process
 
   * Kinetic KTD2692:
     * Make the `ktd2692_timing` variable static to resolve a sparse warning
   * LGM SSO:
     * Remove a duplicate assignment of `priv->mmap` in `intel_sso_led_probe()`
   * TTY Trigger:
     * Prefer `IS_ERR_OR_NULL()` over manual NULL checks
   * TI LM3642:
     * Use `guard(mutex)` to simplify locking and avoid manual `mutex_unlock()` calls
   * TI LP5569:
     * Use `sysfs_emit()` instead of `sprintf()` for sysfs outputs
   * TI LP8860:
     * Return directly from `lp8860_init()` instead of using empty `goto` statements
     * Use a single regmap table and an access table instead of separate maps for normal and EEPROM registers
     * Remove an unused read of the `STATUS` register during EEPROM programming
 
   * Core:
     * Drop the unneeded dependency on `OF_GPIO` from `LEDS_NETXBIG` in Kconfig
 
   * Spreadtrum SC2731:
     * Add a compatible string for the SC2730 PMIC LED controller
   * TI LP5860:
     * Add the `enable-gpios` property for the `VIO_EN` pin
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Merge tag 'leds-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

Pull LED updates from Lee Jones:
  Core:
   - Implement fallback to software node name for LED names
   - Fix formatting issues in `led-core.c` reported by checkpatch.pl
   - Make `led_remove_lookup()` NULL-aware
   - Switch from `class_find_device_by_of_node()` to
     `class_find_device_by_fwnode()`
   - Drop the unneeded dependency on `OF_GPIO` from `LEDS_NETXBIG`
     in Kconfig

  Kinetic KTD2692:
   - Make the `ktd2692_timing` variable static to resolve a
     sparse warning

  LGM SSO:
   - Fix a typo in the `GET_SRC_OFFSET` macro
   - Remove a duplicate assignment of `priv->mmap` in
     `intel_sso_led_probe()`

  Multicolor:
   - Fix a signedness error by changing the `intensity_value` type
     to `unsigned int`

  Qualcomm LPG:
   - Prevent array overflow when selecting high-resolution values

  Spreadtrum SC2731:
   - Add a compatible string for the SC2730 PMIC LED controller

  TI LM3642:
   - Use `guard(mutex)` to simplify locking and avoid manual
     `mutex_unlock()` calls

  TI LP5569:
   - Use `sysfs_emit()` instead of `sprintf()` for sysfs outputs

  TI LP5860:
   - Add the `enable-gpios` property for the `VIO_EN` pin"

  TI LP8860:
   - Do not unconditionally program the EEPROM on probe
   - Hold the mutex lock for the entirety of the EEPROM programming
     process
   - Return directly from `lp8860_init()` instead of using empty `goto`
     statements
   - Use a single regmap table and an access table instead of separate
     maps for normal and EEPROM registers
   - Remove an unused read of the `STATUS` register during EEPROM
     programming

  TTY Trigger:
   - Prefer `IS_ERR_OR_NULL()` over manual NULL checks"

* tag 'leds-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds:
  leds: class: Make led_remove_lookup() NULL-aware
  leds: led-class: Switch to using class_find_device_by_fwnode()
  leds: Kconfig: Drop unneeded dependency on OF_GPIO
  leds: lm3642: Use guard to simplify locking
  leds: core: Fix formatting issues
  leds: core: Implement fallback to software node name for LED names
  leds: lgm-sso: Fix typo in macro for src offset
  dt-bindings: leds: lp5860: add enable-gpio
  leds: Prefer IS_ERR_OR_NULL over manual NULL check
  dt-bindings: leds: sc2731: Add compatible for SC2730
  leds: lp8860: Do not always program EEPROM on probe
  leds: lp8860: Remove unused read of STATUS register
  leds: lp8860: Hold lock for all of EEPROM programming
  leds: lp8860: Return directly from lp8860_init
  leds: lp8860: Use a single regmap table
  leds: lgm-sso: Remove duplicate assignments for priv->mmap
  leds: qcom-lpg: Check for array overflow when selecting the high resolution
  leds: ktd2692: Make ktd2692_timing variable static
  leds: lp5569: Use sysfs_emit instead of sprintf()
  leds: multicolor: Change intensity_value to unsigned int
2026-04-20 11:43:40 -07:00
Linus Torvalds
25c456dab5 MFD for v7.1
* Core:
     * Add a resource-managed version of alloc_workqueue() (`devm_alloc_workqueue()`)
   * Apple SMC:
     * Wire up the Apple SMC power driver by adding a new MFD cell
   * Broadcom BCM2835 PM:
     * Add support for the BCM2712 power management device
     * Introduce a hardware type identifier to distinguish SoC variants
   * Intel LPSS:
     * Add PCI IDs for the Intel Nova Lake-H platform
 
   * Core:
     * Preserve the Open Firmware (OF) node when an ACPI handle is present
   * Atmel HLCDC:
     * Fetch the LVDS PLL clock as a fallback if the generic sys_clk is unavailable
   * EZX PCAP:
     * Avoid rescheduling after destroying the workqueue by switching to a device-managed workqueue
   * Freescale MC13xxx:
     * Fix a memory leak in subdevice platform data allocation by using devm_kmemdup()
   * Intel LPC ICH:
     * Expose a software node for the GPIO controller cell to fix GPIO lookups
   * MediaTek MT6397:
     * Correct the hardware CIDs for the MT6328, MT6331, and MT6332 PMICs to allow proper driver
       binding
   * ROHM BD71828:
     * Enable system wakeup via the power button
   * STMicroelectronics STPMIC1:
     * Attempt system shutdown a second time to handle transient I2C communication failures
 
   * Congatec CGBC, KEMPLD, RSMU, Si476x:
     * Fix various kernel-doc warnings and correct struct member names
   * DLN2:
     * Drop redundant USB device references and switch to managed resource allocations
     * Update bare 'unsigned' types to 'unsigned int'
   * ENE KB3930:
     * Use the of_device_is_system_power_controller() wrapper
   * EZX PCAP:
     * Drop redundant memory allocation error messages
     * Return directly instead of using empty goto statements
   * Maxim MAX77705:
     * Make the max77705_pm_ops variable static to resolve a sparse warning
   * Viperboard:
     * Drop redundant USB device references
 
   * SpacemiT P1:
     * Drop the deprecated "vin-supply" property from the devicetree bindings
 
   * SpacemiT P1:
     * Add individual regulator supply properties to match actual hardware topology
   * Maxim MAX77620:
     * Convert devicetree bindings from TXT to YAML format
     * Document an optional I2C address for the MAX77663 RTC device
   * ROHM BD72720:
     * Add a new compatible string for the ROHM BD73900 PMIC
   * Freescale i.MX25 TSADC:
     * Convert devicetree bindings from TXT to YAML format
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Merge tag 'mfd-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Core:
   - Add a resource-managed version of alloc_workqueue()
     (`devm_alloc_workqueue()`)
   - Preserve the Open Firmware (OF) node when an ACPI handle
     is present

  Apple SMC:
   - Wire up the Apple SMC power driver by adding a new MFD cell

  Atmel HLCDC:
   - Fetch the LVDS PLL clock as a fallback if the generic sys_clk
     is unavailable

  Broadcom BCM2835 PM:
   - Add support for the BCM2712 power management device
   - Introduce a hardware type identifier to distinguish SoC variants

  Congatec CGBC, KEMPLD, RSMU, Si476x:
   - Fix various kernel-doc warnings and correct struct member names

  DLN2:
   - Drop redundant USB device references and switch to managed
     resource allocations
   - Update bare 'unsigned' types to 'unsigned int'

  ENE KB3930:
   - Use the of_device_is_system_power_controller() wrapper

  EZX PCAP:
   - Avoid rescheduling after destroying the workqueue by switching
     to a device-managed workqueue
   - Drop redundant memory allocation error messages
   - Return directly instead of using empty goto statements

  Freescale i.MX25 TSADC:
   - Convert devicetree bindings from TXT to YAML format

  Freescale MC13xxx:
   - Fix a memory leak in subdevice platform data allocation by
     using devm_kmemdup()

  Intel LPC ICH:
   - Expose a software node for the GPIO controller cell to fix
     GPIO lookups

  Intel LPSS:
   - Add PCI IDs for the Intel Nova Lake-H platform

  Maxim MAX77620:
   - Convert devicetree bindings from TXT to YAML format
   - Document an optional I2C address for the MAX77663 RTC device

  Maxim MAX77705:
   - Make the max77705_pm_ops variable static to resolve a
     sparse warning

  MediaTek MT6397:
   - Correct the hardware CIDs for the MT6328, MT6331, and MT6332
     PMICs to allow proper driver binding

  ROHM BD71828:
   - Enable system wakeup via the power button

  ROHM BD72720:
   - Add a new compatible string for the ROHM BD73900 PMIC

  SpacemiT P1:
   - Drop the deprecated "vin-supply" property from the devicetree
     bindings
   - Add individual regulator supply properties to match actual
     hardware topology

  STMicroelectronics STPMIC1:
   - Attempt system shutdown a second time to handle transient I2C
     communication failures

  Viperboard:
   - Drop redundant USB device references"

* tag 'mfd-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (28 commits)
  mfd: core: Preserve OF node when ACPI handle is present
  mfd: ene-kb3930: Use of_device_is_system_power_controller() wrapper
  mfd: intel-lpss: Add Intel Nova Lake-H PCI IDs
  dt-bindings: mfd: max77620: Document optional RTC address for MAX77663
  dt-bindings: mfd: max77620: Convert to DT schema
  mfd: ezx-pcap: Avoid rescheduling after destroying workqueue
  mfd: ezx-pcap: Return directly instead of empty gotos
  mfd: ezx-pcap: Drop memory allocation error message
  mfd: bcm2835-pm: Add BCM2712 PM device support
  mfd: bcm2835-pm: Introduce SoC-specific type identifier
  dt-bindings: mfd: bd72720: Add ROHM BD73900
  mfd: si476x: Fix kernel-doc warnings
  mfd: rsmu: Remove a empty kernel-doc line
  mfd: kempld: Fix kernel-doc struct member names
  mfd: congatec: Fix kernel-doc struct member names
  dt-bindings: mfd: Convert fsl-imx25-tsadc.txt to yaml format
  mfd: viperboard: Drop redundant device reference
  mfd: dln2: Switch to managed resources and fix bare unsigned types
  mfd: macsmc: Wire up Apple SMC power driver
  mfd: mt6397: Properly fix CID of MT6328, MT6331 and MT6332
  ...
2026-04-20 11:31:01 -07:00
Linus Torvalds
4b0b946019 RDMA v7.1 merge window
Usual collection of driver changes, more core infrastructure updates that
 typical this cycle:
 
 - Minor cleanups and kernel-doc fixes in bnxt_re, hns, rdmavt, efa, ocrdma,
   erdma, rtrs, hfi1, ionic, and pvrdma
 
 - New udata validation framework and driver updates
 
 - Modernize CQ creation interface in mlx4 and mlx5, manage CQ umem in core
 
 - Promote UMEM to a core component, split out DMA block iterator logic
 
 - Introduce FRMR pools with aging, statistics, pinned handles, and netlink
   control and use it in  mlx5
 
 - Add PCIe TLP  emulation support in mlx5
 
 - Extend umem to work with revocable pinned dmabuf's and use it in irdma
 
 - More net namespace improvements for rxe
 
 - GEN4 hardware support in irdma
 
 - First steps to MW and UC support in mana_ib
 
 - Support for CQ umem and doorbells in bnxt_re
 
 - Drop opa_vnic driver from hfi1
 
 - Fixes:
     IB/core zero dmac neighbor resolution race
     GID table memory free
     rxe pad/ICRC validation and r_key async errors
     mlx4 external umem for CQ
     umem DMA attributes on unmap
     mana_ib RX steering on RSS QP destroy
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "The usual collection of driver changes, more core infrastructure
  updates that typical this cycle:

   - Minor cleanups and kernel-doc fixes in bnxt_re, hns, rdmavt, efa,
     ocrdma, erdma, rtrs, hfi1, ionic, and pvrdma

   - New udata validation framework and driver updates

   - Modernize CQ creation interface in mlx4 and mlx5, manage CQ umem in
     core

   - Promote UMEM to a core component, split out DMA block iterator
     logic

   - Introduce FRMR pools with aging, statistics, pinned handles, and
     netlink control and use it in mlx5

   - Add PCIe TLP emulation support in mlx5

   - Extend umem to work with revocable pinned dmabuf's and use it in
     irdma

   - More net namespace improvements for rxe

   - GEN4 hardware support in irdma

   - First steps to MW and UC support in mana_ib

   - Support for CQ umem and doorbells in bnxt_re

   - Drop opa_vnic driver from hfi1

  Fixes:

   - IB/core zero dmac neighbor resolution race

   - GID table memory free

   - rxe pad/ICRC validation and r_key async errors

   - mlx4 external umem for CQ

   - umem DMA attributes on unmap

   - mana_ib RX steering on RSS QP destroy"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (116 commits)
  RDMA/core: Fix user CQ creation for drivers without create_cq
  RDMA/ionic: bound node_desc sysfs read with %.64s
  IB/core: Fix zero dmac race in neighbor resolution
  RDMA/mana_ib: Support memory windows
  RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
  RDMA/core: Prefer NLA_NUL_STRING
  RDMA/core: Fix memory free for GID table
  RDMA/hns: Remove the duplicate calls to ib_copy_validate_udata_in()
  RDMA: Remove redundant = {} for udata req structs
  RDMA/irdma: Add missing comp_mask check in alloc_ucontext
  RDMA/hns: Add missing comp_mask check in create_qp
  RDMA/mlx5: Pull comp_mask validation into ib_copy_validate_udata_in_cm()
  RDMA: Use ib_copy_validate_udata_in_cm() for zero comp_mask
  RDMA/hns: Use ib_copy_validate_udata_in()
  RDMA/mlx4: Use ib_copy_validate_udata_in() for QP
  RDMA/mlx4: Use ib_copy_validate_udata_in()
  RDMA/mlx5: Use ib_copy_validate_udata_in() for MW
  RDMA/mlx5: Use ib_copy_validate_udata_in() for SRQ
  RDMA/pvrdma: Use ib_copy_validate_udata_in() for srq
  RDMA: Use ib_copy_validate_udata_in() for implicit full structs
  ...
2026-04-20 11:20:35 -07:00
Linus Torvalds
a5d1079c28 Changes for 7.1-rc1
Added:
     reject inodes with zero non-DOS link count
     return folios from ntfs_lock_new_page()
     subset of W=1 warnings for stricter checks
     work around -Wmaybe-uninitialized warnings
     buffer boundary checks to run_unpack()
     terminate the cached volume label after UTF-8 conversion
 
 Fixed:
     check return value of indx_find to avoid infinite loop
     prevent uninitialized lcn caused by zero len
     increase CLIENT_REC name field size to prevent buffer overflow
     missing run load for vcn0 in attr_data_get_block_locked()
     memory leak in indx_create_allocate()
     OOB write in attr_wof_frame_info()
     mount failure on volumes with fragmented MFT bitmap
     integer overflow in run_unpack() volume boundary check
     validate rec->used in journal-replay file record check
 
 Changed:
     resolve compare function in public index APIs
     $LXDEV xattr lookup
     potential double iput on d_make_root() failure
     initialize err in ni_allocate_da_blocks_locked()
     correct the pre_alloc condition in attr_allocate_clusters()
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Merge tag 'ntfs3_for_7.1' of https://github.com/Paragon-Software-Group/linux-ntfs3

Pull ntfs3 updates from Konstantin Komarov:
 "New:
   - reject inodes with zero non-DOS link count
   - return folios from ntfs_lock_new_page()
   - subset of W=1 warnings for stricter checks
   - work around -Wmaybe-uninitialized warnings
   - buffer boundary checks to run_unpack()
   - terminate the cached volume label after UTF-8 conversion

  Fixes:
   - check return value of indx_find to avoid infinite loop
   - prevent uninitialized lcn caused by zero len
   - increase CLIENT_REC name field size to prevent buffer overflow
   - missing run load for vcn0 in attr_data_get_block_locked()
   - memory leak in indx_create_allocate()
   - OOB write in attr_wof_frame_info()
   - mount failure on volumes with fragmented MFT bitmap
   - integer overflow in run_unpack() volume boundary check
   - validate rec->used in journal-replay file record check

  Updates:
   - resolve compare function in public index APIs
   - $LXDEV xattr lookup
   - potential double iput on d_make_root() failure
   - initialize err in ni_allocate_da_blocks_locked()
   - correct the pre_alloc condition in attr_allocate_clusters()"

* tag 'ntfs3_for_7.1' of https://github.com/Paragon-Software-Group/linux-ntfs3:
  fs/ntfs3: fix Smatch warnings
  fs/ntfs3: validate rec->used in journal-replay file record check
  fs/ntfs3: terminate the cached volume label after UTF-8 conversion
  fs/ntfs3: fix potential double iput on d_make_root() failure
  ntfs3: fix integer overflow in run_unpack() volume boundary check
  ntfs3: add buffer boundary checks to run_unpack()
  ntfs3: fix mount failure on volumes with fragmented MFT bitmap
  fs/ntfs3: fix $LXDEV xattr lookup
  ntfs3: fix OOB write in attr_wof_frame_info()
  ntfs3: fix memory leak in indx_create_allocate()
  ntfs3: work around false-postive -Wmaybe-uninitialized warnings
  fs/ntfs3: fix missing run load for vcn0 in attr_data_get_block_locked()
  fs/ntfs3: increase CLIENT_REC name field size
  fs/ntfs3: prevent uninitialized lcn caused by zero len
  fs/ntfs3: add a subset of W=1 warnings for stricter checks
  fs/ntfs3: return folios from ntfs_lock_new_page()
  fs/ntfs3: resolve compare function in public index APIs
  ntfs3: reject inodes with zero non-DOS link count
2026-04-20 10:59:47 -07:00
Linus Torvalds
a5e1c3b609 eCryptfs changes for 7.1-rc1
The set of eCryptfs changes for the 7.1-rc1 merge window consists of:
 - A fix to avoid unnecessary eCryptfs inode timestamp truncation by
   re-using the lower filesystem's time granularity
 - Various small code cleanups
 - Reorganization of the setattr hook's handling of inode resizing to
   improve style and readability, remove an unnecessary memory allocation
   when shrinking, and to support an upcoming rework of the VFS
   interfaces involved in truncation
 
 The patches have all spent time in linux-next and they do not regress
 the tests in the ecryptfs-utils tree. The inode timestamp fix returns
 the "setattr-flush-dirty" test to passing state.
 
 Signed-off-by: Tyler Hicks <code@tyhicks.com>
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Merge tag 'ecryptfs-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs

Pull eCryptfs updates from Tyler Hicks:

 - avoid unnecessary eCryptfs inode timestamp truncation by re-using the
   lower filesystem's time granularity

 - various small code cleanups

 - reorganize the setattr hook inode resizing to improve style and
   readability, remove an unnecessary memory allocation when shrinking,
   and to support an upcoming rework of the VFS interfaces involved in
   truncation

* tag 'ecryptfs-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
  ecryptfs: keep the lower iattr contained in truncate_upper
  ecryptfs: factor out a ecryptfs_iattr_to_lower helper
  ecryptfs: merge ecryptfs_inode_newsize_ok into truncate_upper
  ecryptfs: combine the two ATTR_SIZE blocks in ecryptfs_setattr
  ecryptfs: use ZERO_PAGE instead of allocating zeroed memory in truncate_upper
  ecryptfs: streamline truncate_upper
  ecryptfs: cleanup ecryptfs_setattr
  ecryptfs: Drop TODO comment in ecryptfs_derive_iv
  ecryptfs: Fix typo in ecryptfs_derive_iv function comment
  ecryptfs: Log function name only once in decode_and_decrypt_filename
  ecryptfs: Remove redundant if checks in encrypt_and_encode_filename
  ecryptfs: Fix tag number in encrypt_filename() error message
  ecryptfs: Use struct_size to improve process_response + send_miscdev
  ecryptfs: Replace memcpy + manual NUL termination with strscpy
  ecryptfs: Set s_time_gran to get correct time granularity
2026-04-20 10:54:17 -07:00
Linus Torvalds
36d179fd6b NFSD 7.1 Release Notes
Benjamin Coddington contributed filehandle signing to defend against
 filehandle-guessing attacks. The server now appends a SipHash-2-4
 MAC to each filehandle when the new "sign_fh" export option is
 enabled. NFSD then verifies filehandles received from clients
 against the expected MAC; mismatches return NFS error STALE.
 
 Chuck Lever converted the entire NLMv4 server-side XDR layer from
 hand-written C to xdrgen-generated code, spanning roughly thirty
 patches. XDR functions are generally boilerplate code and are easy
 to get wrong. The goals of this conversion are improved memory
 safety, lower maintenance burden, and groundwork for eventual Rust
 code generation for these functions.
 
 Dai Ngo improved pNFS block/SCSI layout robustness with two related
 changes. SCSI persistent reservation fencing is now tracked per
 client and per device via an xarray, to avoid both redundant preempt
 operations on devices already fenced and a potential NFSD deadlock
 when all nfsd threads are waiting for a layout return.
 
 The remaining patches deliver scalability and infrastructure
 improvements. Sincere thanks to all contributors, reviewers,
 testers, and bug reporters who participated in the v7.1 NFSD
 development cycle.
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Merge tag 'nfsd-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:

 - filehandle signing to defend against filehandle-guessing attacks
   (Benjamin Coddington)

   The server now appends a SipHash-2-4 MAC to each filehandle when
   the new "sign_fh" export option is enabled. NFSD then verifies
   filehandles received from clients against the expected MAC;
   mismatches return NFS error STALE

 - convert the entire NLMv4 server-side XDR layer from hand-written C to
   xdrgen-generated code, spanning roughly thirty patches (Chuck Lever)

   XDR functions are generally boilerplate code and are easy to get
   wrong. The goals of this conversion are improved memory safety, lower
   maintenance burden, and groundwork for eventual Rust code generation
   for these functions.

 - improve pNFS block/SCSI layout robustness with two related changes
   (Dai Ngo)

   SCSI persistent reservation fencing is now tracked per client and
   per device via an xarray, to avoid both redundant preempt operations
   on devices already fenced and a potential NFSD deadlock when all nfsd
   threads are waiting for a layout return.

 - scalability and infrastructure improvements

   Sincere thanks to all contributors, reviewers, testers, and bug
   reporters who participated in the v7.1 NFSD development cycle.

* tag 'nfsd-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (83 commits)
  NFSD: Docs: clean up pnfs server timeout docs
  nfsd: fix comment typo in nfsxdr
  nfsd: fix comment typo in nfs3xdr
  NFSD: convert callback RPC program to per-net namespace
  NFSD: use per-operation statidx for callback procedures
  svcrdma: Use contiguous pages for RDMA Read sink buffers
  SUNRPC: Add svc_rqst_page_release() helper
  SUNRPC: xdr.h: fix all kernel-doc warnings
  svcrdma: Factor out WR chain linking into helper
  svcrdma: Add Write chunk WRs to the RPC's Send WR chain
  svcrdma: Clean up use of rdma->sc_pd->device
  svcrdma: Clean up use of rdma->sc_pd->device in Receive paths
  svcrdma: Add fair queuing for Send Queue access
  SUNRPC: Optimize rq_respages allocation in svc_alloc_arg
  SUNRPC: Track consumed rq_pages entries
  svcrdma: preserve rq_next_page in svc_rdma_save_io_pages
  SUNRPC: Handle NULL entries in svc_rqst_release_pages
  SUNRPC: Allocate a separate Reply page array
  SUNRPC: Tighten bounds checking in svc_rqst_replace_page
  NFSD: Sign filehandles
  ...
2026-04-20 10:44:02 -07:00
Petr Mladek
add9d911be Merge branch 'rework/prb-fixes' into for-linus 2026-04-20 13:42:01 +02:00
Petr Mladek
3e9e952bb3 Merge branch 'for-7.1-printf-kunit-build' into for-linus 2026-04-20 13:41:28 +02:00
Linus Torvalds
c1f49dea2b 7 hotfixes. 6 are cc:stable and all are for MM. Please see the
individual changelogs for details.
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Merge tag 'mm-hotfixes-stable-2026-04-19-00-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM fixes from Andrew Morton:
 "7 hotfixes. 6 are cc:stable and all are for MM. Please see the
  individual changelogs for details"

* tag 'mm-hotfixes-stable-2026-04-19-00-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/damon/core: disallow non-power of two min_region_sz on damon_start()
  mm/vmalloc: take vmap_purge_lock in shrinker
  mm: call ->free_folio() directly in folio_unmap_invalidate()
  mm: blk-cgroup: fix use-after-free in cgwb_release_workfn()
  mm/zone_device: do not touch device folio after calling ->folio_free()
  mm/damon/core: disallow time-quota setting zero esz
  mm/mempolicy: fix weighted interleave auto sysfs name
2026-04-19 14:45:37 -07:00
Linus Torvalds
8c2bf4a2e5 Driver core fixes for 7.1-rc1
- Prevent a device from being probed before device_add() has finished
   initializing it; gate probe with a "ready_to_probe" device flag to
   avoid races with concurrent driver_register() calls
 
 - Fix a kernel-doc warning for DEV_FLAG_COUNT introduced by the above
 
 - Return -ENOTCONN from software_node_get_reference_args() when a
   referenced software node is known but not yet registered, allowing
   callers to defer probe
 
 - In sysfs_group_attrs_change_owner(), also check is_visible_const();
   missed when the const variant was introduced
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Merge tag 'driver-core-7.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core

Pull driver core fixes from Danilo Krummrich:

 - Prevent a device from being probed before device_add() has finished
   initializing it; gate probe with a "ready_to_probe" device flag to
   avoid races with concurrent driver_register() calls

 - Fix a kernel-doc warning for DEV_FLAG_COUNT introduced by the above

 - Return -ENOTCONN from software_node_get_reference_args() when a
   referenced software node is known but not yet registered, allowing
   callers to defer probe

 - In sysfs_group_attrs_change_owner(), also check is_visible_const();
   missed when the const variant was introduced

* tag 'driver-core-7.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
  driver core: Add kernel-doc for DEV_FLAG_COUNT enum value
  sysfs: attribute_group: Respect is_visible_const() when changing owner
  software node: return -ENOTCONN when referenced swnode is not registered yet
  driver core: Don't let a device probe until it's ready
2026-04-19 12:58:08 -07:00
Linus Torvalds
bea8d77e45 Staging driver changes for 7.1-rc1
Here is the "big" set of staging driver changes for 7.1-rc1.
 
 Nothing major in here at all, just lots of little cleanups for the
 staging drivers, driven by new developers getting their feet wet in
 kernel development.  "Largest" thing in here is the change of some of
 the octeon variable types into proper kernel ones.
 
 Full details are in the shortlog.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here is the "big" set of staging driver changes for 7.1-rc1.

  Nothing major in here at all, just lots of little cleanups for the
  staging drivers, driven by new developers getting their feet wet in
  kernel development. "Largest" thing in here is the change of some of
  the octeon variable types into proper kernel ones.

  Full details are in the shortlog.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (154 commits)
  staging: rtl8723bs: remove redundant & parentheses
  staging: most: dim2: replace BUG_ON() in poison_channel()
  staging: most: dim2: replace BUG_ON() in enqueue()
  staging: most: dim2: replace BUG_ON() in configure_channel()
  staging: most: dim2: replace BUG_ON() in service_done_flag()
  staging: most: dim2: replace BUG_ON() in try_start_dim_transfer()
  staging: rtl8723bs: remove unused RTL8188E antenna selection macros
  staging: rtl8723bs: remove redundant blank lines in basic_types.h
  staging: rtl8723bs: wrap complex macros with parentheses
  staging: rtl8723bs: remove unused WRITEEF/READEF byte macros
  staging: rtl8723bs: rename camelCase variable
  staging: greybus: audio: fix error message for BTN_3 button
  staging: rtl8723bs: rename variables to snake_case
  staging: rtl8723bs: fix spelling in comment
  staging: rtl8723bs: cleanup return in sdio_init()
  staging: rtl8723bs: use direct returns in sdio_dvobj_init()
  staging: rtl8723bs: remove unused arg at odm_interface.h
  greybus: raw: fix use-after-free if write is called after disconnect
  greybus: raw: fix use-after-free on cdev close
  staging: rtl8723bs: fix logical continuations in xmit_linux.c
  ...
2026-04-19 08:51:32 -07:00
Linus Torvalds
99ef60d119 USB / Thunderbolt changes for 7.1-rc1
Here is the big set of USB and Thunderbolt changes for 7.1-rc1.
 
 Lots of little things in here, nothing major, just constant
 improvements, updates, and new features.  Highlights are:
   - new USB power supply driver support (will cause merge conflicts in
     drivers/power/supply/Makefile, but it's a simple fix)  These changes
     did touch outside of drivers/usb/ but got acks from the relevant
     mantainers for them.
   - dts file updates and conversions
   - string function conversions into "safer" ones
   - new device quirks
   - xhci driver updates
   - usb gadget driver minor fixes
   - typec driver additions and updates
   - small number of thunderbolt driver changes
   - dwc3 driver updates and additions of new hardware support
   - other minor driver updates
 
 All of these have been in the linux-next tree for a while with no
 reported issues
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt updates from Greg KH:
 "Here is the big set of USB and Thunderbolt changes for 7.1-rc1.

  Lots of little things in here, nothing major, just constant
  improvements, updates, and new features. Highlights are:

   - new USB power supply driver support.

     These changes did touch outside of drivers/usb/ but got acks from
     the relevant mantainers for them.

   - dts file updates and conversions

   - string function conversions into "safer" ones

   - new device quirks

   - xhci driver updates

   - usb gadget driver minor fixes

   - typec driver additions and updates

   - small number of thunderbolt driver changes

   - dwc3 driver updates and additions of new hardware support

   - other minor driver updates

  All of these have been in the linux-next tree for a while with no
  reported issues"

* tag 'usb-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (176 commits)
  usb: dwc3: starfive: Add JHB100 USB 2.0 DRD controller
  dt-bindings: usb: dwc3: add support for StarFive JHB100
  dt-bindings: usb: atmel,at91sam9rl-udc: convert to DT schema
  dt-bindings: usb: atmel,at91rm9200-udc: convert to DT schema
  dt-bindings: usb: generic-ehci: fix schema structure and add at91sam9g45 constraints
  dt-bindings: usb: generic-ohci: add AT91RM9200 OHCI binding support
  arm: dts: at91: remove unused #address-cells/#size-cells from sam9x60 udc node
  drivers/usb/host: Fix spelling error 'seperate' -> 'separate'
  usbip: tools: add hint when no exported devices are found
  USB: serial: iuu_phoenix: fix iuutool author name
  usb: gadget: f_ncm: validate minimum block_len in ncm_unwrap_ntb()
  usb: gadget: f_phonet: fix skb frags[] overflow in pn_rx_complete()
  usb: gadget: f_hid: Add missing error code
  usb: typec: cros_ec_ucsi: Load driver from OF and ACPI definitions
  dt-bindings: chrome: Add cros-ec-ucsi compatibility to typec binding
  USB: of: Simplify with scoped for each OF child loop
  usbip: validate number_of_packets in usbip_pack_ret_submit()
  usb: gadget: renesas_usb3: validate endpoint index in standard request handlers
  usb: core: config: reverse the size check of the SSP isoc endpoint descriptor
  usb: typec: ucsi: Set usb mode on partner change
  ...
2026-04-19 08:47:40 -07:00
Linus Torvalds
73398c2772 TTY/Serial changes for 7.1-rc1
Here is the set of tty and serial driver changes for 7.1-rc1.
 
 Not much here this cycle, biggest thing is the removal of an old driver
 that never got any actual hardware support (esp32), and the second try
 to moving the tty ports to their own workqueues (first try was in
 7.0-rc1 but was reverted due to problems.)
 
 Otherwise it's just a small set of driver updates and some vt modifier
 key enhancements.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here is the set of tty and serial driver changes for 7.1-rc1.

  Not much here this cycle, biggest thing is the removal of an old
  driver that never got any actual hardware support (esp32), and the
  second try to moving the tty ports to their own workqueues (first try
  was in 7.0-rc1 but was reverted due to problems)

  Otherwise it's just a small set of driver updates and some vt modifier
  key enhancements.

  All have been in linux-next for a while with no reported issues"

* tag 'tty-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (35 commits)
  tty: serial: ip22zilog: Fix section mispatch warning
  hvc/xen: Check console connection flag
  serial: sh-sci: Add support for RZ/G3L RSCI
  dt-bindings: serial: renesas,rsci: Document RZ/G3L SoC
  tty: atmel_serial: update outdated reference to atmel_tasklet_func()
  serial: xilinx_uartps: Drop unused include
  serial: qcom-geni: drop stray newline format specifier
  serial: 8250: loongson: Enable building on MIPS Loongson64
  dt-bindings: serial: 8250: Add Loongson 3A4000 uart compatible
  serial: 8250_fintek: Add support for F81214E
  tty: tty_port: add workqueue to flip TTY buffer
  vt: support ITU-T T.416 color subparameters
  serial: qcom-geni: Fix RTS behavior with flow control
  tty: serial: imx: keep dma request disabled before dma transfer setup
  tty: serial: 8250: Add SystemBase Multi I/O cards
  serial: pic32_uart: allow driver to be compiled on all architectures with COMPILE_TEST
  serial: tegra: remove Kconfig dependency on APB DMA controller
  dt-bindings: serial: amlogic,meson-uart: Add compatible string for A9
  dt-bindings: serial: atmel,at91-usart: add microchip,lan9691-usart
  serial: auart: check clk_enable() return in console write
  ...
2026-04-19 08:44:41 -07:00
Linus Torvalds
40735a683b mm.git review status for linus..mm-stable
Everything:
 
 Total patches:       121
 Reviews/patch:       2.11
 Reviewed rate:       90%
 
 Excluding DAMON:
 
 Total patches:       113
 Reviews/patch:       2.25
 Reviewed rate:       96%
 
 - The 33 patch series "Eliminate Dying Memory Cgroup" from Qi Zheng and
   Muchun Song addresses the longstanding "dying memcg problem".  A
   situation wherein a no-longer-used memory control group will hang around
   for an extended period pointlessly consuming memory.  The [0/N]
   changelog has a good overview of this work.
 
 - The 3 patch series "fix unexpected type conversions and potential
   overflows" from Qi Zheng fixes a couple of potential 32-bit/64-bit
   issues which were identified during review of the "Eliminate Dying
   Memory Cgroup" series.
 
 - The 6 patch series "kho: history: track previous kernel version and
   kexec boot count" from Breno Leitao uses Kexec Handover (KHO) to pass
   the previous kernel's version string and the number of kexec reboots
   since the last cold boot to the next kernel, and prints it at boot time.
 
 - The 4 patch series "liveupdate: prevent double preservation" from
   Pasha Tatashin teaches LUO to avoid managing the same file across
   different active sessions.
 
 - The 10 patch series "liveupdate: Fix module unloading and unregister
   API" from Pasha Tatashin addresses an issue with how LUO handles module
   reference counting and unregistration during module unloading.
 
 - The 2 patch series "zswap pool per-CPU acomp_ctx simplifications" from
   Kanchana Sridhar simplifies and cleans up the zswap crypto compression
   handling and improves the lifecycle management of zswap pool's per-CPU
   acomp_ctx resources.
 
 - The 2 patch series "mm/damon/core: fix damon_call()/damos_walk() vs
   kdmond exit race" from SeongJae Park addresses unlikely but possible
   leaks and deadlocks in damon_call() and damon_walk().
 
 - The 2 patch series "mm/damon/core: validate damos_quota_goal->nid"
   from SeongJae Park fixes a couple of root-only wild pointer
   dereferences.
 
 - The 2 patch series "Docs/admin-guide/mm/damon: warn commit_inputs vs
   other params race" from SeongJae Park updates the DAMON documentation to
   warn operators about potential races which can occur if the
   commit_inputs parameter is altered at the wrong time.
 
 - The 3 patch series "Minor hmm_test fixes and cleanups" from Alistair
   Popple implements two bugfixes a cleanup for the HMM kernel selftests.
 
 - The 6 patch series "Modify memfd_luo code" from Chenghao Duan provides
   cleanups, simplifications and speedups in the memfd_lou code.
 
 - The 4 patch series "mm, kvm: allow uffd support in guest_memfd" from
   Mike Rapoport enables support for userfaultfd in guest_memfd.
 
 - The 6 patch series "selftests/mm: skip several tests when thp is not
   available" from Chunyu Hu fixes several issues in the selftests code
   which were causing breakage when the tests were run on CONFIG_THP=n
   kernels.
 
 - The 2 patch series "mm/mprotect: micro-optimization work" from Pedro
   Falcato implements a couple of nice speedups for mprotect().
 
 - The 3 patch series "MAINTAINERS: update KHO and LIVE UPDATE entries"
   from Pratyush Yadav reflects upcoming changes in the maintenance of KHO,
   LUO, memfd_luo, kexec, crash, kdump and probably other kexec-based
   things - they are being moved out of mm.git and into a new git tree.
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Merge tag 'mm-stable-2026-04-18-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull more MM updates from Andrew Morton:

 - "Eliminate Dying Memory Cgroup" (Qi Zheng and Muchun Song)

   Address the longstanding "dying memcg problem". A situation wherein a
   no-longer-used memory control group will hang around for an extended
   period pointlessly consuming memory

 - "fix unexpected type conversions and potential overflows" (Qi Zheng)

   Fix a couple of potential 32-bit/64-bit issues which were identified
   during review of the "Eliminate Dying Memory Cgroup" series

 - "kho: history: track previous kernel version and kexec boot count"
   (Breno Leitao)

   Use Kexec Handover (KHO) to pass the previous kernel's version string
   and the number of kexec reboots since the last cold boot to the next
   kernel, and print it at boot time

 - "liveupdate: prevent double preservation" (Pasha Tatashin)

   Teach LUO to avoid managing the same file across different active
   sessions

 - "liveupdate: Fix module unloading and unregister API" (Pasha
   Tatashin)

   Address an issue with how LUO handles module reference counting and
   unregistration during module unloading

 - "zswap pool per-CPU acomp_ctx simplifications" (Kanchana Sridhar)

   Simplify and clean up the zswap crypto compression handling and
   improve the lifecycle management of zswap pool's per-CPU acomp_ctx
   resources

 - "mm/damon/core: fix damon_call()/damos_walk() vs kdmond exit race"
   (SeongJae Park)

   Address unlikely but possible leaks and deadlocks in damon_call() and
   damon_walk()

 - "mm/damon/core: validate damos_quota_goal->nid" (SeongJae Park)

   Fix a couple of root-only wild pointer dereferences

 - "Docs/admin-guide/mm/damon: warn commit_inputs vs other params race"
   (SeongJae Park)

   Update the DAMON documentation to warn operators about potential
   races which can occur if the commit_inputs parameter is altered at
   the wrong time

 - "Minor hmm_test fixes and cleanups" (Alistair Popple)

   Bugfixes and a cleanup for the HMM kernel selftests

 - "Modify memfd_luo code" (Chenghao Duan)

   Cleanups, simplifications and speedups to the memfd_lou code

 - "mm, kvm: allow uffd support in guest_memfd" (Mike Rapoport)

   Support for userfaultfd in guest_memfd

 - "selftests/mm: skip several tests when thp is not available" (Chunyu
   Hu)

   Fix several issues in the selftests code which were causing breakage
   when the tests were run on CONFIG_THP=n kernels

 - "mm/mprotect: micro-optimization work" (Pedro Falcato)

   A couple of nice speedups for mprotect()

 - "MAINTAINERS: update KHO and LIVE UPDATE entries" (Pratyush Yadav)

   Document upcoming changes in the maintenance of KHO, LUO, memfd_luo,
   kexec, crash, kdump and probably other kexec-based things - they are
   being moved out of mm.git and into a new git tree

* tag 'mm-stable-2026-04-18-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (121 commits)
  MAINTAINERS: add page cache reviewer
  mm/vmscan: avoid false-positive -Wuninitialized warning
  MAINTAINERS: update Dave's kdump reviewer email address
  MAINTAINERS: drop include/linux/liveupdate from LIVE UPDATE
  MAINTAINERS: drop include/linux/kho/abi/ from KHO
  MAINTAINERS: update KHO and LIVE UPDATE maintainers
  MAINTAINERS: update kexec/kdump maintainers entries
  mm/migrate_device: remove dead migration entry check in migrate_vma_collect_huge_pmd()
  selftests: mm: skip charge_reserved_hugetlb without killall
  userfaultfd: allow registration of ranges below mmap_min_addr
  mm/vmstat: fix vmstat_shepherd double-scheduling vmstat_update
  mm/hugetlb: fix early boot crash on parameters without '=' separator
  zram: reject unrecognized type= values in recompress_store()
  docs: proc: document ProtectionKey in smaps
  mm/mprotect: special-case small folios when applying permissions
  mm/mprotect: move softleaf code out of the main function
  mm: remove '!root_reclaim' checking in should_abort_scan()
  mm/sparse: fix comment for section map alignment
  mm/page_io: use sio->len for PSWPIN accounting in sio_read_complete()
  selftests/mm: transhuge_stress: skip the test when thp not available
  ...
2026-04-19 08:01:17 -07:00
SeongJae Park
95093e5cb4 mm/damon/core: disallow non-power of two min_region_sz on damon_start()
Commit d8f867fa08 ("mm/damon: add damon_ctx->min_sz_region") introduced
a bug that allows unaligned DAMON region address ranges.  Commit
c80f46ac22 ("mm/damon/core: disallow non-power of two min_region_sz")
fixed it, but only for damon_commit_ctx() use case.  Still, DAMON sysfs
interface can emit non-power of two min_region_sz via damon_start().  Fix
the path by adding the is_power_of_2() check on damon_start().

The issue was discovered by sashiko [1].

Link: https://lore.kernel.org/20260411213638.77768-1-sj@kernel.org
Link: https://lore.kernel.org/20260403155530.64647-1-sj@kernel.org [1]
Fixes: d8f867fa08 ("mm/damon: add damon_ctx->min_sz_region")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org> # 6.18.x
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 23:24:27 -07:00
Uladzislau Rezki (Sony)
ec05f51f1e mm/vmalloc: take vmap_purge_lock in shrinker
decay_va_pool_node() can be invoked concurrently from two paths:
__purge_vmap_area_lazy() when pools are being purged, and the shrinker via
vmap_node_shrink_scan().

However, decay_va_pool_node() is not safe to run concurrently, and the
shrinker path currently lacks serialization, leading to races and possible
leaks.

Protect decay_va_pool_node() by taking vmap_purge_lock in the shrinker
path to ensure serialization with purge users.

Link: https://lore.kernel.org/20260413192646.14683-1-urezki@gmail.com
Fixes: 7679ba6b36 ("mm: vmalloc: add a shrinker to drain vmap pools")
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Reviewed-by: Baoquan He <baoquan.he@linux.dev>
Cc: chenyichong <chenyichong@uniontech.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 23:24:27 -07:00
Matthew Wilcox (Oracle)
615d9bb2cc mm: call ->free_folio() directly in folio_unmap_invalidate()
We can only call filemap_free_folio() if we have a reference to (or hold a
lock on) the mapping.  Otherwise, we've already removed the folio from the
mapping so it no longer pins the mapping and the mapping can be removed,
causing a use-after-free when accessing mapping->a_ops.

Follow the same pattern as __remove_mapping() and load the free_folio
function pointer before dropping the lock on the mapping.  That lets us
make filemap_free_folio() static as this was the only caller outside
filemap.c.

Link: https://lore.kernel.org/20260413184314.3419945-1-willy@infradead.org
Fixes: fb7d3bc414 ("mm/filemap: drop streaming/uncached pages when writeback completes")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reported-by: Google Big Sleep <big-sleep-vuln-reports+bigsleep-501448199@google.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jan Kara <jack@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 23:24:27 -07:00
Breno Leitao
8f5857be99 mm: blk-cgroup: fix use-after-free in cgwb_release_workfn()
cgwb_release_workfn() calls css_put(wb->blkcg_css) and then later accesses
wb->blkcg_css again via blkcg_unpin_online().  If css_put() drops the last
reference, the blkcg can be freed asynchronously (css_free_rwork_fn ->
blkcg_css_free -> kfree) before blkcg_unpin_online() dereferences the
pointer to access blkcg->online_pin, resulting in a use-after-free:

  BUG: KASAN: slab-use-after-free in blkcg_unpin_online (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 block/blk-cgroup.c:1367)
  Write of size 4 at addr ff11000117aa6160 by task kworker/71:1/531
   Workqueue: cgwb_release cgwb_release_workfn
   Call Trace:
    <TASK>
     blkcg_unpin_online (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 block/blk-cgroup.c:1367)
     cgwb_release_workfn (mm/backing-dev.c:629)
     process_scheduled_works (kernel/workqueue.c:3278 kernel/workqueue.c:3385)

   Freed by task 1016:
    kfree (./include/linux/kasan.h:235 mm/slub.c:2689 mm/slub.c:6246 mm/slub.c:6561)
    css_free_rwork_fn (kernel/cgroup/cgroup.c:5542)
    process_scheduled_works (kernel/workqueue.c:3302 kernel/workqueue.c:3385)

** Stack based on commit 66672af7a095 ("Add linux-next specific files
for 20260410")

I am seeing this crash sporadically in Meta fleet across multiple kernel
versions.  A full reproducer is available at:
https://github.com/leitao/debug/blob/main/reproducers/repro_blkcg_uaf.sh

(The race window is narrow.  To make it easily reproducible, inject a
msleep(100) between css_put() and blkcg_unpin_online() in
cgwb_release_workfn().  With that delay and a KASAN-enabled kernel, the
reproducer triggers the splat reliably in less than a second.)

Fix this by moving blkcg_unpin_online() before css_put(), so the
cgwb's CSS reference keeps the blkcg alive while blkcg_unpin_online()
accesses it.

Link: https://lore.kernel.org/20260413-blkcg-v1-1-35b72622d16c@debian.org
Fixes: 59b57717ff ("blkcg: delay blkg destruction until after writeback has finished")
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Dennis Zhou <dennis@kernel.org>
Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: JP Kobryn <inwardvessel@gmail.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Cc: Martin KaFai Lau <martin.lau@linux.dev>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 23:24:27 -07:00
Matthew Brost
3992898495 mm/zone_device: do not touch device folio after calling ->folio_free()
The contents of a device folio can immediately change after calling
->folio_free(), as the folio may be reallocated by a driver with a
different order.  Instead of touching the folio again to extract the
pgmap, use the local stack variable when calling percpu_ref_put_many().

Link: https://lore.kernel.org/20260410230346.4009855-1-matthew.brost@intel.com
Fixes: d245f9b4ab ("mm/zone_device: support large zone device private folios")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Balbir Singh <balbirs@nvidia.com>
Reviewed-by: Vishal Moola <vishal.moola@gmail.com>
Reviewed-by: Alistair Popple <apopple@nvidia.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 23:24:27 -07:00
SeongJae Park
8bbde987c2 mm/damon/core: disallow time-quota setting zero esz
When the throughput of a DAMOS scheme is very slow, DAMOS time quota can
make the effective size quota smaller than damon_ctx->min_region_sz.  In
the case, damos_apply_scheme() will skip applying the action, because the
action is tried at region level, which requires >=min_region_sz size. 
That is, the quota is effectively exceeded for the quota charge window.

Because no action will be applied, the total_charged_sz and
total_charged_ns are also not updated.  damos_set_effective_quota() will
try to update the effective size quota before starting the next charge
window.  However, because the total_charged_sz and total_charged_ns have
not updated, the throughput and effective size quota are also not changed.
Since effective size quota can only be decreased, other effective size
quota update factors including DAMOS quota goals and size quota cannot
make any change, either.

As a result, the scheme is unexpectedly deactivated until the user notices
and mitigates the situation.  The users can mitigate this situation by
changing the time quota online or re-install the scheme.  While the
mitigation is somewhat straightforward, finding the situation would be
challenging, because DAMON is not providing good observabilities for that.
Even if such observability is provided, doing the additional monitoring
and the mitigation is somewhat cumbersome and not aligned to the intention
of the time quota.  The time quota was intended to help reduce the user's
administration overhead.

Fix the problem by setting time quota-modified effective size quota be at
least min_region_sz always.

The issue was discovered [1] by sashiko.

Link: https://lore.kernel.org/20260407003153.79589-1-sj@kernel.org
Link: https://lore.kernel.org/20260405192504.110014-1-sj@kernel.org [1]
Fixes: 1cd2430300 ("mm/damon/schemes: implement time quota")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org> # 5.16.x
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 23:24:27 -07:00
Joshua Hahn
8fedac321f mm/mempolicy: fix weighted interleave auto sysfs name
The __ATTR macro is a utility that makes defining kobj_attributes easier
by stringfying the name, verifying the mode, and setting the show/store
fields in a single initializer.  It takes a raw token as the first value,
rather than a string, so that __ATTR family macros like __ATTR_RW can
token-paste it for inferring the _show / _store function names.

Commit e341f9c3c8 ("mm/mempolicy: Weighted Interleave Auto-tuning") used
the __ATTR macro to define the "auto" sysfs for weighted interleave.  A
few months later, commit 2fb6915fa2 ("compiler_types.h: add "auto" as a
macro for "__auto_type"") introduced a #define macro which expanded auto
into __auto_type.

This led to the "auto" token passed into __ATTR to be expanded out into
__auto_type, and the sysfs entry to be displayed as __auto_type as well.

Expand out the __ATTR macro and directly pass a string "auto" instead of
the raw token 'auto' to prevent it from being expanded out.  Also bypass
the VERIFY_OCTAL_PERMISSIONS check by triple checking that 0664 is indeed
the intended permissions for this sysfs file.

Before:
$ ls /sys/kernel/mm/mempolicy/weighted_interleave
__auto_type  node0

After:
$ ls /sys/kernel/mm/mempolicy/weighted_interleave/
auto  node0

Link: https://lore.kernel.org/20260407141415.3080960-1-joshua.hahnjy@gmail.com
Fixes: 2fb6915fa2 ("compiler_types.h: add "auto" as a macro for "__auto_type"")
Signed-off-by: Joshua Hahn <joshua.hahnjy@gmail.com>
Reviewed-by: Gregory Price <gourry@gourry.net>
Reviewed-by: Rakie Kim <rakie.kim@sk.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Acked-by: Zi Yan <ziy@nvidia.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Byungchul Park <byungchul@sk.com>
Cc: "Huang, Ying" <ying.huang@linux.alibaba.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Ying Huang <ying.huang@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 23:24:26 -07:00
Linus Torvalds
faeab16616 Pin control changes for the v7.1 kernel cycle:
Core changes:
 
 - Perform basic checks on pin config properties so as not to
   allow directly contradictory settings such as setting a pin
   to more than one bias or drive mode.
 
 - Handle input-threshold-voltage-microvolt property.
 
 - Introduce pinctrl_gpio_get_config() handling in the core for
   SCMI GPIO using pin control.
 
 New drivers:
 
 - GPIO-by-pin control driver (also apperaing in the GPIO pull
   request) fulfilling a promise on a comment from
   Grant Likely many years ago: "can't GPIO just be a front-end
   for pin control?" it turns out it can, if and only if you
   design something new from scratch, such as SCMI.
 
 - Broadcom BCM7038 as a pinctrl-single delegate.
 
 - Mobileye EyeQ6Lplus OLB pin controller.
 
 - Qualcomm Eliza and Hawi families TLMM pin controllers.
 
 - Qualcomm SDM670 and Milos family LPASS LPI pin controllers.
 
 - Qualcomm IPQ5210 pin controller.
 
 - Realtek RTD1625 pin controller support.
 
 - Rockchip RV1103B pin controller support.
 
 - Texas Instruments AM62L as a pinctrl-single delegate.
 
 Improvements:
 
 - Set config implementation for the Spacemit K1 pin controller.
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Merge tag 'pinctrl-v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "Core changes:

   - Perform basic checks on pin config properties so as not to allow
     directly contradictory settings such as setting a pin to more than
     one bias or drive mode

   - Handle input-threshold-voltage-microvolt property

   - Introduce pinctrl_gpio_get_config() handling in the core for SCMI
     GPIO using pin control

  New drivers:

   - GPIO-by-pin control driver (also appearing in the GPIO pull
     request) fulfilling a promise on a comment from Grant Likely many
     years ago: "can't GPIO just be a front-end for pin control?" it
     turns out it can, if and only if you design something new from
     scratch, such as SCMI

   - Broadcom BCM7038 as a pinctrl-single delegate

   - Mobileye EyeQ6Lplus OLB pin controller

   - Qualcomm Eliza and Hawi families TLMM pin controllers

   - Qualcomm SDM670 and Milos family LPASS LPI pin controllers

   - Qualcomm IPQ5210 pin controller

   - Realtek RTD1625 pin controller support

   - Rockchip RV1103B pin controller support

   - Texas Instruments AM62L as a pinctrl-single delegate

  Improvements:

   - Set config implementation for the Spacemit K1 pin controller"

* tag 'pinctrl-v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (84 commits)
  pinctrl: qcom: Add Hawi pinctrl driver
  dt-bindings: pinctrl: qcom: Describe Hawi TLMM block
  dt-bindings: pinctrl: pinctrl-max77620: convert to DT schema
  pinctrl: single: Add bcm7038-padconf compatible matching
  dt-bindings: pinctrl: pinctrl-single: Add brcm,bcm7038-padconf
  dt-bindings: pinctrl: apple,pinctrl: Add t8122 compatible
  pinctrl: qcom: sdm670-lpass-lpi: label variables as static
  pinctrl: sophgo: pinctrl-sg2044: Fix wrong module description
  pinctrl: sophgo: pinctrl-sg2042: Fix wrong module description
  pinctrl: qcom: add sdm670 lpi tlmm
  dt-bindings: pinctrl: qcom: Add SDM670 LPASS LPI pinctrl
  dt-bindings: qcom: lpass-lpi-common: add reserved GPIOs property
  pinctrl: qcom: Introduce IPQ5210 TLMM driver
  dt-bindings: pinctrl: qcom: add IPQ5210 pinctrl
  pinctrl: qcom: Drop redundant intr_target_reg on modern SoCs
  pinctrl: qcom: eliza: Fix interrupt target bit
  pinctrl: core: Don't use "proxy" headers
  pinctrl: amd: Support new ACPI ID AMDI0033
  pinctrl: renesas: rzg2l: Drop superfluous blank line
  pinctrl: renesas: rzg2l: Fix save/restore of {IOLH,IEN,PUPD,SMT} registers
  ...
2026-04-18 16:59:09 -07:00
Linus Torvalds
401b0e0bc9 I3C for 7.1
Subsystem:
  - add sysfs option to rescan bus via entdaa
  - fix error code handling for send_ccc_cmd
 
 Drivers:
  - mipi-i3c-hci-pci: Intel Nova Lake-H I3C support
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Merge tag 'i3c/for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

Pull i3c updates from Alexandre Belloni:
 "Subsystem:
   - add sysfs option to rescan bus via entdaa
   - fix error code handling for send_ccc_cmd

  Drivers:
   - mipi-i3c-hci-pci: Intel Nova Lake-H I3C support"

* tag 'i3c/for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (22 commits)
  i3c: mipi-i3c-hci: fix IBI payload length calculation for final status
  i3c: master: adi: Fix error propagation for CCCs
  i3c: master: Fix error codes at send_ccc_cmd
  i3c: master: Move bus_init error suppression
  i3c: master: Move entdaa error suppression
  i3c: master: Move rstdaa error suppression
  i3c: dw: Simplify xfer cleanup with __free(kfree)
  i3c: dw: Fix memory leak in dw_i3c_master_i3c_xfers()
  i3c: master: renesas: Use __free(kfree) for xfer cleanup in renesas_i3c_send_ccc_cmd()
  i3c: master: renesas: Fix memory leak in renesas_i3c_i3c_xfers()
  i3c: master: dw-i3c: Balance PM runtime usage count on probe failure
  i3c: master: dw-i3c: Fix missing reset assertion in remove() callback
  i3c: mipi-i3c-hci-pci: Enable IBI while runtime suspended for Intel controllers
  i3c: mipi-i3c-hci-pci: Add optional ability to manage child runtime PM
  i3c: mipi-i3c-hci: Allow parent to manage runtime PM
  i3c: mipi-i3c-hci: Add quirk to allow IBI while runtime suspended
  i3c: mipi-i3c-hci-pci: Set d3hot_delay to 0 for Intel controllers
  i3c: fix missing newline in dev_err messages
  i3c: master: use kzalloc_flex
  i3c: mipi-i3c-hci-pci: Add support for Intel Nova Lake-H I3C
  ...
2026-04-18 16:48:13 -07:00
Linus Torvalds
eb5249b125 parisc architecture fixes and updates for kernel v7.1-rc1:
- A fix to make modules on 32-bit parisc architecture work again
 - Drop ip_fast_csum() inline assembly to avoid unaligned memory accesses
 - Allow to build kernel without 32-bit VDSO
 - Reference leak fix in error path in LED driver
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Merge tag 'parisc-for-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc architecture updates from Helge Deller:

 - A fix to make modules on 32-bit parisc architecture work again

 - Drop ip_fast_csum() inline assembly to avoid unaligned memory
   accesses

 - Allow to build kernel without 32-bit VDSO

 - Reference leak fix in error path in LED driver

* tag 'parisc-for-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: led: fix reference leak on failed device registration
  module.lds.S: Fix modules on 32-bit parisc architecture
  parisc: Allow to build without VDSO32
  parisc: Include 32-bit VDSO only when building for 32-bit or compat mode
  parisc: Allow to disable COMPAT mode on 64-bit kernel
  parisc: Fix default stack size when COMPAT=n
  parisc: Fix signal code to depend on CONFIG_COMPAT instead of CONFIG_64BIT
  parisc: is_compat_task() shall return false for COMPAT=n
  parisc: Avoid compat syscalls when COMPAT=n
  parisc: _llseek syscall is only available for 32-bit userspace
  parisc: Drop ip_fast_csum() inline assembly implementation
  parisc: update outdated comments for renamed ccio_alloc_consistent()
2026-04-18 11:37:36 -07:00
Linus Torvalds
9055c64567 memblock: updates for 7.0-rc1
* improve debugability of reserve_mem kernel parameter handling with print
   outs in case of a failure and debugfs info showing what was actually
   reserved
 * Make memblock_free_late() and free_reserved_area() use the same core
   logic for freeing the memory to buddy and ensure it takes care of
   updating memblock arrays when ARCH_KEEP_MEMBLOCK is enabled.
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Merge tag 'memblock-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

Pull memblock updates from Mike Rapoport:

 - improve debuggability of reserve_mem kernel parameter handling with
   print outs in case of a failure and debugfs info showing what was
   actually reserved

 - Make memblock_free_late() and free_reserved_area() use the same core
   logic for freeing the memory to buddy and ensure it takes care of
   updating memblock arrays when ARCH_KEEP_MEMBLOCK is enabled.

* tag 'memblock-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  x86/alternative: delay freeing of smp_locks section
  memblock: warn when freeing reserved memory before memory map is initialized
  memblock, treewide: make memblock_free() handle late freeing
  memblock: make free_reserved_area() update memblock if ARCH_KEEP_MEMBLOCK=y
  memblock: extract page freeing from free_reserved_area() into a helper
  memblock: make free_reserved_area() more robust
  mm: move free_reserved_area() to mm/memblock.c
  powerpc: opal-core: pair alloc_pages_exact() with free_pages_exact()
  powerpc: fadump: pair alloc_pages_exact() with free_pages_exact()
  memblock: reserve_mem: fix end caclulation in reserve_mem_release_by_name()
  memblock: move reserve_bootmem_range() to memblock.c and make it static
  memblock: Add reserve_mem debugfs info
  memblock: Print out errors on reserve_mem parser
2026-04-18 11:29:14 -07:00
Linus Torvalds
fba676bd29 i2c-for-7.1-rc1-part1
- generic cleanups in npcm7xx, qcom-cci, xiic and designware DT
   bindings
 - atr: use kzalloc_flex for alias pool allocation
 - ixp4xx: convert bindings to DT schema
 - ocores: use read_poll_timeout_atomic() for polling waits
 - qcom-geni: skip extra TX DMA TRE for single read messages
 - s3c24xx: validate SMBus block length before using it
 - spacemit: refactor xfer path and add K1 PIO support
 - tegra: identify DVC and VI with SoC data variants
 - tegra: support SoC-specific register offsets
 - xiic: switch to devres and generic fw properties
 - xiic: skip input clock setup on non-OF systems
 - various minor improvements in other drivers
 
 rtl9300:
 - add per-SoC callbacks and clock support for RTL9607C
 - add support for new 50 kHz and 2.5 MHz bus speeds
 - general refactoring in preparation for RTL9607C support
 
 New support:
 - DesignWare GOOG5000 (ACPI HID)
 - Intel Nova Lake (ACPI ID)
 - Realtek RTL9607C
 - SpacemiT K3 binding
 - Tegra410 register layout support
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Merge tag 'i2c-for-7.1-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 "The biggest news in this pull request is that it will start the last
  cycle of me handling the I2C subsystem. From 7.2. on, I will pass
  maintainership to Andi Shyti who has been maintaining the I2C drivers
  for a while now and who has done a great job in doing so.

  We will use this cycle for a hopefully smooth transition. Thanks must
  go to Andi for stepping up! I will still be around for guidance.

  Updates:
   - generic cleanups in npcm7xx, qcom-cci, xiic and designware DT
     bindings
   - atr: use kzalloc_flex for alias pool allocation
   - ixp4xx: convert bindings to DT schema
   - ocores: use read_poll_timeout_atomic() for polling waits
   - qcom-geni: skip extra TX DMA TRE for single read messages
   - s3c24xx: validate SMBus block length before using it
   - spacemit: refactor xfer path and add K1 PIO support
   - tegra: identify DVC and VI with SoC data variants
   - tegra: support SoC-specific register offsets
   - xiic: switch to devres and generic fw properties
   - xiic: skip input clock setup on non-OF systems
   - various minor improvements in other drivers

  rtl9300:
   - add per-SoC callbacks and clock support for RTL9607C
   - add support for new 50 kHz and 2.5 MHz bus speeds
   - general refactoring in preparation for RTL9607C support

  New support:
   - DesignWare GOOG5000 (ACPI HID)
   - Intel Nova Lake (ACPI ID)
   - Realtek RTL9607C
   - SpacemiT K3 binding
   - Tegra410 register layout support"

* tag 'i2c-for-7.1-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (40 commits)
  i2c: usbio: Add ACPI device-id for NVL platforms
  i2c: qcom-geni: Avoid extra TX DMA TRE for single read message in GPI mode
  i2c: atr: use kzalloc_flex
  i2c: spacemit: introduce pio for k1
  i2c: spacemit: move i2c_xfer_msg()
  i2c: xiic: skip input clock setup on non-OF systems
  i2c: xiic: use numbered adapter registration
  i2c: xiic: cosmetic: use resource format specifier in debug log
  i2c: xiic: cosmetic cleanup
  i2c: xiic: switch to generic device property accessors
  i2c: xiic: remove duplicate error message
  i2c: xiic: switch to devres managed APIs
  i2c: rtl9300: add RTL9607C i2c controller support
  i2c: rtl9300: introduce new function properties to driver data
  i2c: rtl9300: introduce clk struct for upcoming rtl9607 support
  dt-bindings: i2c: realtek,rtl9301-i2c: extend for clocks and RTL9607C support
  i2c: rtl9300: introduce a property for 8 bit width reg address
  i2c: rtl9300: introduce F_BUSY to the reg_fields struct
  i2c: rtl9300: introduce max length property to driver data
  i2c: rtl9300: split data_reg into read and write reg
  ...
2026-04-18 09:44:22 -07:00
Linus Torvalds
1e76965696 ipmi: Small updates and fixes
Mostly fixes to the BMC software.
 
 Fix one issue in the host side driver where a kthread can be left
 running on a specific memory allocation failre at probe time.
 
 Replace system_wq with system_percpu_wq so system_wq can eventually go
 away.
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Merge tag 'for-linus-7.1-1' of https://github.com/cminyard/linux-ipmi

Pull ipmi updates from Corey Minyard:
 "Small updates and fixes (mostly to the BMC software):

   - Fix one issue in the host side driver where a kthread can be left
     running on a specific memory allocation failre at probe time

   - Replace system_wq with system_percpu_wq so system_wq can eventually
     go away"

* tag 'for-linus-7.1-1' of https://github.com/cminyard/linux-ipmi:
  ipmi:ssif: Clean up kthread on errors
  ipmi:ssif: Remove unnecessary indention
  ipmi: ssif_bmc: Fix KUnit test link failure when KUNIT=m
  ipmi: ssif_bmc: add unit test for state machine
  ipmi: ssif_bmc: change log level to dbg in irq callback
  ipmi: ssif_bmc: fix message desynchronization after truncated response
  ipmi: ssif_bmc: fix missing check for copy_to_user() partial failure
  ipmi: ssif_bmc: cancel response timer on remove
  ipmi: Replace use of system_wq with system_percpu_wq
2026-04-18 09:33:54 -07:00
Linus Torvalds
df8f6181ab perf tools updates for 7.1
perf report:
 
  - Add 'comm_nodigit' sort key to combine similar threads that only have
    different numbers in the comm.  In the following example, the
    'comm_nodigit' will have samples from all threads starting with
    "bpfrb/" into an entry "bpfrb/<N>".
 
     $ perf report -s comm_nodigit,comm -H
     ...
     #
     #    Overhead  CommandNoDigit / Command
     # ...........  ........................
     #
         20.30%     swapper
            20.30%     swapper
         13.37%     chrome
            13.37%     chrome
         10.07%     bpfrb/<N>
             7.47%     bpfrb/0
             0.70%     bpfrb/1
             0.47%     bpfrb/3
             0.46%     bpfrb/2
             0.25%     bpfrb/4
             0.23%     bpfrb/5
             0.20%     bpfrb/6
             0.14%     bpfrb/10
             0.07%     bpfrb/7
 
  - Support flat layout for symfs.  The --symfs option is to specify the
    location of debugging symbol files.  The default 'hierarchy' layout
    would search the symbol file using the same path of the original file
    under the symfs root.  The new 'flat' layout would search only in the
    root directory.
 
  - Update 'simd' sort key for ARM SIMD flags to cover ASE/SME and more
    predicate flags.
 
 perf stat:
 
  - Add --pmu-filter option to select specific PMUs.  This would be
    useful when you measure metrics from multiple instance of uncore PMUs
    with similar names.
 
     # perf stat -M cpa_p0_avg_bw
      Performance counter stats for 'system wide':
 
         19,417,779,115      hisi_sicl0_cpa0/cpa_cycles/      #     0.00 cpa_p0_avg_bw
                      0      hisi_sicl0_cpa0/cpa_p0_wr_dat/
                      0      hisi_sicl0_cpa0/cpa_p0_rd_dat_64b/
                      0      hisi_sicl0_cpa0/cpa_p0_rd_dat_32b/
         19,417,751,103      hisi_sicl10_cpa0/cpa_cycles/     #     0.00 cpa_p0_avg_bw
                      0      hisi_sicl10_cpa0/cpa_p0_wr_dat/
                      0      hisi_sicl10_cpa0/cpa_p0_rd_dat_64b/
                      0      hisi_sicl10_cpa0/cpa_p0_rd_dat_32b/
         19,417,730,679      hisi_sicl2_cpa0/cpa_cycles/      #     0.31 cpa_p0_avg_bw
             75,635,749      hisi_sicl2_cpa0/cpa_p0_wr_dat/
             18,520,640      hisi_sicl2_cpa0/cpa_p0_rd_dat_64b/
                      0      hisi_sicl2_cpa0/cpa_p0_rd_dat_32b/
         19,417,674,227      hisi_sicl8_cpa0/cpa_cycles/      #     0.00 cpa_p0_avg_bw
                      0      hisi_sicl8_cpa0/cpa_p0_wr_dat/
                      0      hisi_sicl8_cpa0/cpa_p0_rd_dat_64b/
                      0      hisi_sicl8_cpa0/cpa_p0_rd_dat_32b/
 
           19.417734480 seconds time elapsed
 
    With --pmu-filter, users can select only hisi_sicl2_cpa0 PMU.
 
     # perf stat --pmu-filter hisi_sicl2_cpa0 -M cpa_p0_avg_bw
      Performance counter stats for 'system wide':
 
          6,234,093,559      cpa_cycles                       #     0.60 cpa_p0_avg_bw
             50,548,465      cpa_p0_wr_dat
              7,552,182      cpa_p0_rd_dat_64b
                      0      cpa_p0_rd_dat_32b
 
            6.234139320 seconds time elapsed
 
 Data type profiling:
 
  - Quality improvements by tracking register state more precisely.
  - Ensure array members to get the type.
  - Handle more cases for global variables.
 
 Vendor event/metric updates:
 
  - Update various Intel events and metrics
  - Add NVIDIA Tegra 410 Olympus events
 
 Internal changes:
 
  - Verify perf.data header for maliciously crafted files.
  - Update perf test to cover more usages and make them robust.
  - Move a couple of copied kernel headers not to annoy objtool build.
  - Fix a bug in map sorting in name order.
  - Remove some unused codes.
 
 Misc:
 
  - Fix module symbol resolution with non-zero text address.
  - Add -t/--threads option to `perf bench mem mmap`.
  - Track duration of exit*() syscall by `perf trace -s`.
  - Add core.addr2line-timeout and core.addr2line-disable-warn config
    items.
 
 Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Merge tag 'perf-tools-for-v7.1-2026-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools updates from Namhyung Kim:
 "perf report:

   - Add 'comm_nodigit' sort key to combine similar threads that only
     have different numbers in the comm. In the following example, the
     'comm_nodigit' will have samples from all threads starting with
     "bpfrb/" into an entry "bpfrb/<N>".

        $ perf report -s comm_nodigit,comm -H
        ...
        #
        #    Overhead  CommandNoDigit / Command
        # ...........  ........................
        #
            20.30%     swapper
               20.30%     swapper
            13.37%     chrome
               13.37%     chrome
            10.07%     bpfrb/<N>
                7.47%     bpfrb/0
                0.70%     bpfrb/1
                0.47%     bpfrb/3
                0.46%     bpfrb/2
                0.25%     bpfrb/4
                0.23%     bpfrb/5
                0.20%     bpfrb/6
                0.14%     bpfrb/10
                0.07%     bpfrb/7

   - Support flat layout for symfs. The --symfs option is to specify the
     location of debugging symbol files. The default 'hierarchy' layout
     would search the symbol file using the same path of the original
     file under the symfs root. The new 'flat' layout would search only
     in the root directory.

   - Update 'simd' sort key for ARM SIMD flags to cover ASE/SME and more
     predicate flags.

  perf stat:

   - Add --pmu-filter option to select specific PMUs. This would be
     useful when you measure metrics from multiple instance of uncore
     PMUs with similar names.

        # perf stat -M cpa_p0_avg_bw
         Performance counter stats for 'system wide':

            19,417,779,115      hisi_sicl0_cpa0/cpa_cycles/      #     0.00 cpa_p0_avg_bw
                         0      hisi_sicl0_cpa0/cpa_p0_wr_dat/
                         0      hisi_sicl0_cpa0/cpa_p0_rd_dat_64b/
                         0      hisi_sicl0_cpa0/cpa_p0_rd_dat_32b/
            19,417,751,103      hisi_sicl10_cpa0/cpa_cycles/     #     0.00 cpa_p0_avg_bw
                         0      hisi_sicl10_cpa0/cpa_p0_wr_dat/
                         0      hisi_sicl10_cpa0/cpa_p0_rd_dat_64b/
                         0      hisi_sicl10_cpa0/cpa_p0_rd_dat_32b/
            19,417,730,679      hisi_sicl2_cpa0/cpa_cycles/      #     0.31 cpa_p0_avg_bw
                75,635,749      hisi_sicl2_cpa0/cpa_p0_wr_dat/
                18,520,640      hisi_sicl2_cpa0/cpa_p0_rd_dat_64b/
                         0      hisi_sicl2_cpa0/cpa_p0_rd_dat_32b/
            19,417,674,227      hisi_sicl8_cpa0/cpa_cycles/      #     0.00 cpa_p0_avg_bw
                         0      hisi_sicl8_cpa0/cpa_p0_wr_dat/
                         0      hisi_sicl8_cpa0/cpa_p0_rd_dat_64b/
                         0      hisi_sicl8_cpa0/cpa_p0_rd_dat_32b/

              19.417734480 seconds time elapsed

     With --pmu-filter, users can select only hisi_sicl2_cpa0 PMU.

        # perf stat --pmu-filter hisi_sicl2_cpa0 -M cpa_p0_avg_bw
         Performance counter stats for 'system wide':

             6,234,093,559      cpa_cycles                       #     0.60 cpa_p0_avg_bw
                50,548,465      cpa_p0_wr_dat
                 7,552,182      cpa_p0_rd_dat_64b
                         0      cpa_p0_rd_dat_32b

               6.234139320 seconds time elapsed

  Data type profiling:

   - Quality improvements by tracking register state more precisely

   - Ensure array members to get the type

   - Handle more cases for global variables

  Vendor event/metric updates:

   - Update various Intel events and metrics

   - Add NVIDIA Tegra 410 Olympus events

  Internal changes:

   - Verify perf.data header for maliciously crafted files

   - Update perf test to cover more usages and make them robust

   - Move a couple of copied kernel headers not to annoy objtool build

   - Fix a bug in map sorting in name order

   - Remove some unused codes

  Misc:

   - Fix module symbol resolution with non-zero text address

   - Add -t/--threads option to `perf bench mem mmap`

   - Track duration of exit*() syscall by `perf trace -s`

   - Add core.addr2line-timeout and core.addr2line-disable-warn config
     items"

* tag 'perf-tools-for-v7.1-2026-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (131 commits)
  perf loongarch: Fix build failure with CONFIG_LIBDW_DWARF_UNWIND
  perf annotate: Use jump__delete when freeing LoongArch jumps
  perf test: Fixes for check branch stack sampling
  perf test: Fix inet_pton probe failure and unroll call graph
  perf build: fix "argument list too long" in second location
  perf header: Add sanity checks to HEADER_BPF_BTF processing
  perf header: Sanity check HEADER_BPF_PROG_INFO
  perf header: Sanity check HEADER_PMU_CAPS
  perf header: Sanity check HEADER_HYBRID_TOPOLOGY
  perf header: Sanity check HEADER_CACHE
  perf header: Sanity check HEADER_GROUP_DESC
  perf header: Sanity check HEADER_PMU_MAPPINGS
  perf header: Sanity check HEADER_MEM_TOPOLOGY
  perf header: Sanity check HEADER_NUMA_TOPOLOGY
  perf header: Sanity check HEADER_CPU_TOPOLOGY
  perf header: Sanity check HEADER_NRCPUS and HEADER_CPU_DOMAIN_INFO
  perf header: Bump up the max number of command line args allowed
  perf header: Validate nr_domains when reading HEADER_CPU_DOMAIN_INFO
  perf sample: Fix documentation typo
  perf arm_spe: Improve SIMD flags setting
  ...
2026-04-18 09:24:56 -07:00
Jan Kara
0b5e8d7999 MAINTAINERS: add page cache reviewer
Add myself as a page cache reviewer since I tend to review changes in
these areas anyway.

[akpm@linux-foundation.org: add linux-mm@kvack.org]
Link: https://lore.kernel.org/20260415174039.13016-2-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Lorenzo Stoakes <ljs@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:56 -07:00
Arnd Bergmann
3de705a43a mm/vmscan: avoid false-positive -Wuninitialized warning
When the -fsanitize=bounds sanitizer is enabled, gcc-16 sometimes runs
into a corner case in the read_ctrl_pos() pos function, where it sees
possible undefined behavior from the 'tier' index overflowing, presumably
in the case that this was called with a negative tier:

In function 'get_tier_idx',
    inlined from 'isolate_folios' at mm/vmscan.c:4671:14:
mm/vmscan.c: In function 'isolate_folios':
mm/vmscan.c:4645:29: error: 'pv.refaulted' is used uninitialized [-Werror=uninitialized]

Part of the problem seems to be that read_ctrl_pos() has unusual calling
conventions since commit 37a260870f ("mm/mglru: rework type selection")
where passing MAX_NR_TIERS makes it accumulate all tiers but passing a
smaller positive number makes it read a single tier instead.

Shut up the warning by adding a fake initialization to the two instances
of this variable that can run into that corner case.

Link: https://lore.kernel.org/all/CAJHvVcjtFW86o5FoQC8MMEXCHAC0FviggaQsd5EmiCHP+1fBpg@mail.gmail.com/
Link: https://lore.kernel.org/20260414065206.3236176-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kairui Song <kasong@tencent.com>
Cc: Koichiro Den <koichiro.den@canonical.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:56 -07:00
Dave Young
e86ffbe7df MAINTAINERS: update Dave's kdump reviewer email address
Use my personal email address due to the Red Hat work will stop soon

Link: https://lore.kernel.org/ad8GFhh3SI1wb7IC@darkstar.users.ipa.redhat.com
Signed-off-by: Dave Young <ruirui.yang@linux.dev>
Acked-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:56 -07:00
Pratyush Yadav (Google)
b5a9ac2bb0 MAINTAINERS: drop include/linux/liveupdate from LIVE UPDATE
The directory does not exist any more.

Link: https://lore.kernel.org/20260414121752.1912847-4-pratyush@kernel.org
Signed-off-by: Pratyush Yadav (Google) <pratyush@kernel.org>
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Alexander Graf <graf@amazon.com>
Cc: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:56 -07:00
Pratyush Yadav (Google)
de61e40bcb MAINTAINERS: drop include/linux/kho/abi/ from KHO
The KHO entry already includes include/linux/kho.  Listing its
subdirectory is redundant.

Link: https://lore.kernel.org/20260414121752.1912847-3-pratyush@kernel.org
Signed-off-by: Pratyush Yadav (Google) <pratyush@kernel.org>
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Alexander Graf <graf@amazon.com>
Cc: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:56 -07:00
Pratyush Yadav (Google)
320c7234d1 MAINTAINERS: update KHO and LIVE UPDATE maintainers
Patch series "MAINTAINERS: update KHO and LIVE UPDATE entries".

This series contains some updates for the Kexec Handover (KHO) and Live
update entries.  Patch 1 updates the maintainers list and adds the
liveupdate tree.  Patches 2 and 3 clean up stale files in the list.


This patch (of 3):

I have been helping out with reviewing and developing KHO.  I would also
like to help maintain it.  Change my entry from R to M for KHO and live
update.  Alex has been inactive for a while, so to avoid over-crowding the
KHO entry and to keep the information up-to-date, move his entry from M to
R.

We also now have a tree for KHO and live update at liveupdate/linux.git
where we plan to start maintaining those subsystems and start queuing the
patches.  List that in the entries as well.

Link: https://lore.kernel.org/20260414121752.1912847-1-pratyush@kernel.org
Link: https://lore.kernel.org/20260414121752.1912847-2-pratyush@kernel.org
Signed-off-by: Pratyush Yadav (Google) <pratyush@kernel.org>
Reviewed-by: Alexander Graf <graf@amazon.com>
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Baoquan He <bhe@redhat.com>
Cc: David Hildenbrand <david@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:56 -07:00
Pasha Tatashin
60087b49f8 MAINTAINERS: update kexec/kdump maintainers entries
Update KEXEC and KDUMP maintainer entries by adding the live update group
maintainers.  Remove Vivek Goyal due to inactivity to keep the MAINTAINERS
file up-to-date, and add Vivek to the CREDITS file to recognize their
contributions.

Link: https://lore.kernel.org/20260413121146.49215-1-pasha.tatashin@soleen.com
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Acked-by: Pratyush Yadav <pratyush@kernel.org>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Diego Viola <diego.viola@gmail.com>
Cc: Jakub Kacinski <kuba@kernel.org>
Cc: Magnus Karlsson <magnus.karlsson@intel.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Martin Kepplinger <martink@posteo.de>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:56 -07:00
Davidlohr Bueso
57294a97bd mm/migrate_device: remove dead migration entry check in migrate_vma_collect_huge_pmd()
The softleaf_is_migration() check is unreachable as entries that are not
device_private are filtered out.  Similarly, the PTE-level equivalent in
migrate_vma_collect_pmd() skips migration entries.

This dead branch also contained a double spin_unlock(ptl) bug.

Link: https://lore.kernel.org/20260212014611.416695-1-dave@stgolabs.net
Fixes: a30b48bf1b ("mm/migrate_device: implement THP migration of zone device pages")
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Alistair Popple <apopple@nvidia.com>
Acked-by: Balbir Singh <balbirs@nvidia.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Byungchul Park <byungchul@sk.com>
Cc: Gregory Price <gourry@gourry.net>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Mathew Brost <matthew.brost@intel.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Ying Huang <ying.huang@linux.alibaba.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:56 -07:00
Cao Ruichuang
d432e8847f selftests: mm: skip charge_reserved_hugetlb without killall
charge_reserved_hugetlb.sh tears down background writers with killall from
psmisc.  Minimal Ubuntu images do not always provide that tool, so the
selftest fails in cleanup for an environment reason rather than for the
hugetlb behavior it is trying to cover.

Skip the test when killall is unavailable, similar to the existing root
check, so these environments report the dependency clearly instead of
failing the test.

Link: https://lore.kernel.org/20260410044139.67480-1-create0818@163.com
Signed-off-by: Cao Ruichuang <create0818@163.com>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:56 -07:00
Denis M. Karpov
161ce69c2c userfaultfd: allow registration of ranges below mmap_min_addr
The current implementation of validate_range() in fs/userfaultfd.c
performs a hard check against mmap_min_addr.  This is redundant because
UFFDIO_REGISTER operates on memory ranges that must already be backed by a
VMA.

Enforcing mmap_min_addr or capability checks again in userfaultfd is
unnecessary and prevents applications like binary compilers from using
UFFD for valid memory regions mapped by application.

Remove the redundant check for mmap_min_addr.

We started using UFFD instead of the classic mprotect approach in the
binary translator to track application writes.  During development, we
encountered this bug.  The translator cannot control where the translated
application chooses to map its memory and if the app requires a
low-address area, UFFD fails, whereas mprotect would work just fine.  I
believe this is a genuine logic bug rather than an improvement, and I
would appreciate including the fix in stable.

Link: https://lore.kernel.org/20260409103345.15044-1-komlomal@gmail.com
Fixes: 86039bd3b4 ("userfaultfd: add new syscall to provide memory externalization")
Signed-off-by: Denis M. Karpov <komlomal@gmail.com>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Acked-by: Harry Yoo (Oracle) <harry@kernel.org>
Reviewed-by: Pedro Falcato <pfalcato@suse.de>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:56 -07:00
Breno Leitao
2b19bf0571 mm/vmstat: fix vmstat_shepherd double-scheduling vmstat_update
vmstat_shepherd uses delayed_work_pending() to check whether vmstat_update
is already scheduled for a given CPU before queuing it.  However,
delayed_work_pending() only tests WORK_STRUCT_PENDING_BIT, which is
cleared the moment a worker thread picks up the work to execute it.

This means that while vmstat_update is actively running on a CPU,
delayed_work_pending() returns false.  If need_update() also returns true
at that point (per-cpu counters not yet zeroed mid-flush), the shepherd
queues a second invocation with delay=0, causing vmstat_update to run
again immediately after finishing.

On a 72-CPU system this race is readily observable: before the fix, many
CPUs show invocation gaps well below 500 jiffies (the minimum
round_jiffies_relative() can produce), with the most extreme cases
reaching 0 jiffies—vmstat_update called twice within the same jiffy.

Fix this by replacing delayed_work_pending() with work_busy(), which
returns non-zero for both WORK_BUSY_PENDING (timer armed or work queued)
and WORK_BUSY_RUNNING (work currently executing).  The shepherd now
correctly skips a CPU in all busy states.

After the fix, all sub-jiffy and most sub-100-jiffie gaps disappear.  The
remaining early invocations have gaps in the 700–999 jiffie range,
attributable to round_jiffies_relative() aligning to a nearer
jiffie-second boundary rather than to this race.

Each spurious vmstat_update invocation has a measurable side effect:
refresh_cpu_vm_stats() calls decay_pcp_high() for every zone, which drains
idle per-CPU pages back to the buddy allocator via free_pcppages_bulk(),
taking the zone spinlock each time.  Eliminating the double-scheduling
therefore reduces zone lock contention directly.  On a 72-CPU stress-ng
workload measured with perf lock contention:

  free_pcppages_bulk contention count:  ~55% reduction
  free_pcppages_bulk total wait time:   ~57% reduction
  free_pcppages_bulk max wait time:     ~47% reduction

Note: work_busy() is inherently racy—between the check and the
subsequent queue_delayed_work_on() call, vmstat_update can finish
execution, leaving the work neither pending nor running.  In that narrow
window the shepherd can still queue a second invocation.  After the fix,
this residual race is rare and produces only occasional small gaps, a
significant improvement over the systematic double-scheduling seen with
delayed_work_pending().

Link: https://lore.kernel.org/20260409-vmstat-v2-1-e9d9a6db08ad@debian.org
Fixes: 7b8da4c7f0 ("vmstat: get rid of the ugly cpu_stat_off variable")
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Dmitry Ilvokhin <d@ilvokhin.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:55 -07:00
Thorsten Blum
c45b354911 mm/hugetlb: fix early boot crash on parameters without '=' separator
If hugepages, hugepagesz, or default_hugepagesz are specified on the
kernel command line without the '=' separator, early parameter parsing
passes NULL to hugetlb_add_param(), which dereferences it in strlen() and
can crash the system during early boot.

Reject NULL values in hugetlb_add_param() and return -EINVAL instead.

Link: https://lore.kernel.org/20260409105437.108686-4-thorsten.blum@linux.dev
Fixes: 5b47c02967 ("mm/hugetlb: convert cmdline parameters from setup to early")
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Cc: David Hildenbrand <david@kernel.org>
Cc: Frank van der Linden <fvdl@google.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:55 -07:00
Andrew Stellman
2f529e73d7 zram: reject unrecognized type= values in recompress_store()
recompress_store() parses the type= parameter with three if statements
checking for "idle", "huge", and "huge_idle".  An unrecognized value
silently falls through with mode left at 0, causing the recompression pass
to run with no slot filter — processing all slots instead of the
intended subset.

Add a !mode check after the type parsing block to return -EINVAL for
unrecognized values, consistent with the function's other parameter
validation.

Link: https://lore.kernel.org/20260407153027.42425-1-astellman@stellman-greene.com
Signed-off-by: Andrew Stellman <astellman@stellman-greene.com>
Suggested-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:55 -07:00
Kevin Brodsky
9a8ea3c1cb docs: proc: document ProtectionKey in smaps
The ProtectionKey entry was added in v4.9; back then it was x86-specific,
but it now lives in generic code and applies to all architectures
supporting pkeys (currently x86, power, arm64).

Time to document it: add a paragraph to proc.rst about the ProtectionKey
entry.

[akpm@linux-foundation.org: s/system/hardware/, per review discussion]
[akpm@linux-foundation.org: s/hardware/CPU/]
Link: https://lore.kernel.org/20260407125133.564182-1-kevin.brodsky@arm.com
Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
Reported-by: Yury Khrustalev <yury.khrustalev@arm.com>
Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Marc Rutland <mark.rutland@arm.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:55 -07:00
Pedro Falcato
89e613bc0b mm/mprotect: special-case small folios when applying permissions
The common order-0 case is important enough to want its own branch, and
avoids the hairy, large loop logic that the CPU does not seem to handle
particularly well.

While at it, encourage the compiler to inline batch PTE logic and resolve
constant branches by adding __always_inline strategically.

Link: https://lore.kernel.org/20260402141628.3367596-3-pfalcato@suse.de
Signed-off-by: Pedro Falcato <pfalcato@suse.de>
Suggested-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Tested-by: Luke Yang <luyang@redhat.com>
Reviewed-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jann Horn <jannh@google.com>
Cc: Jiri Hladky <jhladky@redhat.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-18 00:10:55 -07:00