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v7.3-rc1
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1744 Commits

Author SHA1 Message Date
Linus Torvalds
3382bfbca5 More ACPI support updates for 7.3-rc1 
- Update MAINTAINERS, CREDITS and ACPI subsystem documentation to
    reflect recent changes in the upstream ACPICA project (Rafael
    Wysocki)
 
  - Prevent the core ACPI enumeration code from combining device
    resources that overlap completely in order to avoid resource
    conflicts during platform device registration because there are
    drivers that expect such resources to be present (Rafael Wysocki)
 
  - Defer device power initialization during ACPI-based device
    enumeration to the point when the given device is known to be present
    and functional and all of its dependencies have been met (Peixin Xie)
 
  - Fix bus ID cleanup on device_add() failures during ACPI device object
    registration (Hongyan Xu)
 
  - Introduce a new helper function for looking up the primary "physical"
    device for a given ACPI device object and update the core ACPI device
    enumeration code to use that function (Rafael Wysocki)
 
  - Protect all battery properties with a separated mutex in the ACPI
    battery driver to prevent race conditions from occurring and avoid
    evaluating the _BST ACPI control method multiple times in parallel
    for the same battery device (Rong Zhang)
 
  - Add DMI quirk for the Razer Blade Pro 17 early 2020 lid switch to the
    ACPI button driver (Robin Everaars)
 
  - Convert fixed clock rates in the ACPI driver for AMD SoCs (APD) to
    use HZ_PER_MHZ and add a clock frequency for the HJMC01 I2C
    controller to it (Hongnan Li and Xiangyang Yu)
 
  - Fix a stack buffer overflow in query_capability() in the ACPI
    platform firmware runtime update driver (Anirudh Prasad)
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Merge tag 'acpi-7.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI support updates from Rafael Wysocki:
 "These update documentation to reflect recent changes in the upstream
  ACPICA project, fix issues in the core ACPI device enumeration code
  (one of which has been introduced recently), improve the primary
  "physical" device lookup for ACPI device objects in that code, and
  update ACPI device drivers:

   - Update MAINTAINERS, CREDITS and ACPI subsystem documentation to
     reflect recent changes in the upstream ACPICA project (Rafael
     Wysocki)

   - Prevent the core ACPI enumeration code from combining device
     resources that overlap completely in order to avoid resource
     conflicts during platform device registration because there are
     drivers that expect such resources to be present (Rafael Wysocki)

   - Defer device power initialization during ACPI-based device
     enumeration to the point when the given device is known to be
     present and functional and all of its dependencies have been met
     (Peixin Xie)

   - Fix bus ID cleanup on device_add() failures during ACPI device
     object registration (Hongyan Xu)

   - Introduce a new helper function for looking up the primary
     "physical" device for a given ACPI device object and update the
     core ACPI device enumeration code to use that function (Rafael
     Wysocki)

   - Protect all battery properties with a separated mutex in the ACPI
     battery driver to prevent race conditions from occurring and avoid
     evaluating the _BST ACPI control method multiple times in parallel
     for the same battery device (Rong Zhang)

   - Add DMI quirk for the Razer Blade Pro 17 early 2020 lid switch to
     the ACPI button driver (Robin Everaars)

   - Convert fixed clock rates in the ACPI driver for AMD SoCs (APD) to
     use HZ_PER_MHZ and add a clock frequency for the HJMC01 I2C
     controller to it (Hongnan Li and Xiangyang Yu)

   - Fix a stack buffer overflow in query_capability() in the ACPI
     platform firmware runtime update driver (Anirudh Prasad)"

* tag 'acpi-7.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: button: Add DMI quirk for Razer Blade Pro 17 early 2020 lid switch
  ACPI: scan: Do not combine resources that overlap completely
  ACPI: Update upstream ACPICA repository URL in documentation
  ACPI: Update MAINTAINERS entry for ACPICA
  ACPI: Add Bob Moore to CREDITS
  ACPI: pfr_update: fix stack buffer overflow in query_capability()
  ACPI: scan: Defer device power initialization
  ACPI: APD: Add clock frequency for HJMC01 I2C controller
  ACPI: APD: Convert fixed clock rates to use HZ_PER_MHZ
  ACPI: scan: Use acpi_bus_get_primary_device()
  ACPI: platform: Use acpi_bus_get_primary_device()
  ACPI: bus: Introduce acpi_bus_get_primary_device()
  ACPI: scan: fix bus ID cleanup on device_add() failures
  ACPI: battery: Protect all properties with a separated mutex
 2026-08-26 14:06:08 -07:00
Linus Torvalds
502d45774a Mostly the usual clk driver updates and new SoC additions plus non-critical 
data fixes for things that weren't used yet. One thing that's new here in the
 core is SSC spread spectrum support (SSC) in the clk provider API. The idea is
 that DT authors will configure SSC for certain clks and they'll be configured
 at clk provider registration time or when a consumer device is probed, similar
 to how we handle assigned clk rates or parents.
 
 On the clk driver side we have Qualcomm adding almost half the diff because
 they add support for 4 different SoCs and then a long tail of other SoCs like
 Mediatek, Renesas, Rockchip, SpaceMiT, etc. add more SoC support this time
 around. Luckily it's mostly clk data for these new SoCs because the actual
 clk_ops are already there. Beyond the new drivers we get all the little fixups
 for more compilation coverage or usage of more modern APIs. That all looks
 normal.
 
 Finally, I kinda buried the lead, I'm bringing on Brian and Jerome to help out
 with maintaining the clk subsystem. The current working model is already
 semi-distributed in that silicon vendors typically take care of their drivers
 and send me pull requests but I'm becoming a bottleneck for new drivers and
 core framework review because this has become a 100% volunteer effort on my
 part. Mike is stepping down after all these years (thanks Mike!) and that jump
 started the conversation around finding co-maintainers. Brian and Jerome have
 graciously offered to help me with the work load, meaning in the future they'll
 be sending pull requests and committing directly to the clk.git tree. They've
 both been around on the list for a while, I've met them both in person, and
 they've been making changes to the core clk framework along with helping review
 patches so I'm pretty confident this will work well.
 
 Core:
  - devm_clk_bulk_get_enable() consumer API
  - devm_clk_hw_register_composite_pdata() provider API
  - Spread Spectrum Clock (SSC) support via DT bindings and provider APIs
  - Divider clk rounding improved (and tested)
 
 New Drivers:
  - Cix Sky1 audio subsystem (AUDSS)
  - UltraRISC DP1000
  - MediaTek MT8173 MFG_TOP
  - Si549
  - Aspeed AST2700 PECI
  - Airoha EN7523 PCIe
  - Rockchip RV1106
  - Mobileye EyeQ7H
  - Qualcomm Maili GCC, TCSR, RPMh, and video clks
  - Qualcomm Shikra GCC, RPM, GPU, display, and audio clks
  - Qualcomm Nord display and graphics clks
  - Qualcomm Glymur camera and EVA clks
  - Qualcomm Hawi video clks
  - Amlogic A9 AO and peripheral clks
  - Renesas R-Car X5H (R8A78000) CPG
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "Mostly the usual clk driver updates and new SoC additions plus
  non-critical data fixes for things that weren't used yet.

  One thing that's new here in the core is SSC spread spectrum support
  (SSC) in the clk provider API. The idea is that DT authors will
  configure SSC for certain clks and they'll be configured at clk
  provider registration time or when a consumer device is probed,
  similar to how we handle assigned clk rates or parents.

  On the clk driver side we have Qualcomm adding almost half the diff
  because they add support for 4 different SoCs and then a long tail of
  other SoCs like Mediatek, Renesas, Rockchip, SpaceMiT, etc. add more
  SoC support this time around. Luckily it's mostly clk data for these
  new SoCs because the actual clk_ops are already there. Beyond the new
  drivers we get all the little fixups for more compilation coverage or
  usage of more modern APIs. That all looks normal.

  Finally, I kinda buried the lede, I'm bringing on Brian and Jerome to
  help out with maintaining the clk subsystem. The current working model
  is already semi-distributed in that silicon vendors typically take
  care of their drivers and send me pull requests but I'm becoming a
  bottleneck for new drivers and core framework review because this has
  become a 100% volunteer effort on my part.

  Mike is stepping down after all these years (thanks Mike!) and that
  jump started the conversation around finding co-maintainers. Brian and
  Jerome have graciously offered to help me with the work load, meaning
  in the future they'll be sending pull requests and committing directly
  to the clk.git tree. They've both been around on the list for a while,
  I've met them both in person, and they've been making changes to the
  core clk framework along with helping review patches so I'm pretty
  confident this will work well.

  Core:
   - devm_clk_bulk_get_enable() consumer API
   - devm_clk_hw_register_composite_pdata() provider API
   - Spread Spectrum Clock (SSC) support via DT bindings and provider APIs
   - Divider clk rounding improved (and tested)

  New Drivers:
   - Cix Sky1 audio subsystem (AUDSS)
   - UltraRISC DP1000
   - MediaTek MT8173 MFG_TOP
   - Si549
   - Aspeed AST2700 PECI
   - Airoha EN7523 PCIe
   - Rockchip RV1106
   - Mobileye EyeQ7H
   - Qualcomm Maili GCC, TCSR, RPMh, and video clks
   - Qualcomm Shikra GCC, RPM, GPU, display, and audio clks
   - Qualcomm Nord display and graphics clks
   - Qualcomm Glymur camera and EVA clks
   - Qualcomm Hawi video clks
   - Amlogic A9 AO and peripheral clks
   - Renesas R-Car X5H (R8A78000) CPG"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (269 commits)
  clk: microchip: mpfs: fix regmap_update_bits() mask/val order
  clk: visconti: Make sure clk_init_data is fully initialized
  clk: ti: Make sure clk_init_data is fully initialized
  MAINTAINERS: Add Brian Masney and Jerome Brunet as co-maintainers for clk subsystem
  Drop Michael Turquette's clk maintainer entry
  clk: ti: composite: resolve parent clocks by DT index, not by name
  clk: ti: mux: resolve parent clocks by DT index, not by name
  clk: devres: fix cleanup in devm_clk_get_optional_enabled_with_rate()
  dt-bindings: clock: ti,keystone-gate: Convert to DT schema
  dt-bindings: clock: ti: Convert APLL clock to DT schema
  clk: zynq: pll: Fix kernel-doc after determine_rate() conversion
  dt-bindings: clock: ti,clockdomain: Convert to DT schema
  dt-bindings: clock: Correct white-space style
  clk: samsung: Don't include <linux/mod_devicetable.h>
  clk: at91: Read "reg" with helper
  clk: renesas: Add R-Car X5H CPG driver
  clk: rockchip: rk3576: fix source muxes for SPI0..SPI4
  clk: rockchip: Add clock controller for the RV1106
  dt-bindings: clock: rockchip: Add RV1106 CRU support
  dt-bindings: clock: Document Renesas R-Car X5H Clock Pulse Generator
  ...
 2026-08-26 11:14:30 -07:00
Linus Torvalds
a5218c6474 power sequencing updates for v7.3-rc1 
- rename pwrseq_power_on/off() to pwrseq_enable/disable() tree-wide
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Merge tag 'pwrseq-updates-for-v7.3-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull another power sequencing update from Bartosz Golaszewski:
 "A single tree-wide rename of two of the public functions to better
  reflect their actual semantics:

   - rename pwrseq_power_on/off() to pwrseq_enable/disable() tree-wide"

* tag 'pwrseq-updates-for-v7.3-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  power: sequencing: rename pwrseq_power_on/off() to pwrseq_enable/disable()
 2026-08-26 08:45:09 -07:00
Bartosz Golaszewski
d51fc9d4cd power: sequencing: rename pwrseq_power_on/off() to pwrseq_enable/disable() 
The way power sequencing works means that a call to pwrseq_power_on()
does not necessarily result in the pwrseq target being powered-on at
that time: it may have already been powered on before. Similarly: a call
to pwrseq_power_off() does not have to result in an actual powering off
of resources: there may still be other users that requested a power-on
before.

We will also introduce the concept of "non-controllable" pwrseq targets
soon which further increases the disconnect between the naming
convention and the actual semantics.

What consumers of pwrseq descriptors actually do is: they *vote* for a
powering on of a given target or retract that vote. These operations
could be called get/put in line with runtime PM but this could become
confusing since we already provide pwrseq_get/put() for a different
purpose. pwrseq_vote_on/off() also have been rejected as unusual in
the tree.

Change the name of the two functions to pwrseq_enable/disable() which
better reflects their purpose and semantics and also mirrors other
enable-counted resources like regulators and clocks. No functional change
intended.

If at any point users need to know *when* the exact power event happens,
we can provide that information in the form of a notifier.

Acked-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Acked-by: Alessio Belle <alessio.belle@imgtec.com> # imagination
Link: https://patch.msgid.link/20260731-pwrseq-vote-rename-v3-1-44e60b8be053@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
 2026-08-26 10:05:45 +02:00
Linus Torvalds
93e4b3076b Char/Misc/IIO/etc driver update for 7.3-rc1 
Here is the big set of char, misc, iio, counter, fpga, and other small
 driver subsystems for 7.3-rc1.
 
 Overall, due to some driver removals we only added a bit more code than
 removed, which was a nice change.  Highlights in this merge request are:
   - Loads of IIO driver updates and additions
   - binder driver updates (more on that below...)
   - Removal of the SGI XP and GRU drivers as they are not used anymore
     and turn out to be pretty insecure overall
   - Removal of the obsolete ibmasm driver as it's not being used anymore
   - Coresight driver updates and additions
   - Mei driver udpates
   - Counter driver updates
   - FPGA driver updates
   - ICC driver updates
   - lots and lots of other tiny driver updates to resolve reported
     issues
 
 All of these have been in linux-next for a while, with the only reported
 issues being some major merge conflicts.  Miguel pointed out some of
 these with the Rust tree merge, which is the majority of them.  I'll
 follow up with a diffstat of the merge resolution I made against your
 most recent tree, which works for me.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc/IIO/etc driver updates from Greg KH:
 "Here is the big set of char, misc, iio, counter, fpga, and other small
  driver subsystems for 7.3-rc1.

  Overall, due to some driver removals we only added a bit more code
  than removed, which was a nice change. Highlights in this merge
  request are:

   - Loads of IIO driver updates and additions

   - binder driver updates (more on that below...)

   - Removal of the SGI XP and GRU drivers as they are not used anymore
     and turn out to be pretty insecure overall

   - Removal of the obsolete ibmasm driver as it's not being used
     anymore

   - Coresight driver updates and additions

   - Mei driver udpates

   - Counter driver updates

   - FPGA driver updates

   - ICC driver updates

   - lots and lots of other tiny driver updates to resolve reported
     issues

  All of these have been in linux-next for a while"

* tag 'char-misc-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (513 commits)
  iio: chemical: atlas-sensor: use iio_trigger_poll_nested() to fix remove UAF
  iio: adc: pac1921: fix wrong channel used in trigger handler read
  iio: light: gp2ap002: re-enable irq if runtime suspend fails
  iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes
  iio: light: apds9306: fix PM reference leak in apds9306_read_data()
  iio: gyro: mpu3050: fix sign of raw angular velocity readings
  iio: srf04: fix pm_runtime handling on probe error path
  iio: adc: ad4080: configure backend data size
  iio: adc: adi-axi-adc: add data size support for AD408X backend
  iio: chemical: atlas-sensor: fix PM reference leak in buffer postenable
  iio: dac: ad5446: fix OF module device table
  iio: light: opt4001: Fix reversed GENMASK() arguments in fault count mask
  iio: light: opt4001: Reject integration times with a non-zero seconds part
  iio: light: opt4001: Fix incompatible pointer type passed to div_u64_rem()
  iio: light: opt4001: Fix power down clearing bits of the wrong register
  iio: light: opt4060: Fix incorrect register name in threshold read error message
  iio: light: opt4060: Fix pointer type passed to div_u64_rem()
  iio: light: opt4060: Reject integration times with a non-zero seconds part
  iio: light: ltrf216a: fix runtime PM reference leak in error path
  iio: pressure: dps310: fix NULL pointer dereference on ACPI probe
  ...
 2026-08-25 09:38:50 -07:00
Linus Torvalds
66498c75b4 dmaengine updates for v7.3 
Core:
   - New API to combine configuration and preparation and users
 
  New Support:
   - Mediatek MT8189 SoC uart dma support
 
  Updates:
   - Designware dma driver flatten desc structures and simplify code,
     interrupt-path groundwork changes, first part of PCI EP DMA support
   - Updates to zynqmp_dma with runtime PM and device removal improvments
   - Xilinx dma optimizations for AXIDMA and MCDMA channel management
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Merge tag 'dmaengine-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

Pull dmaengine updates from Vinod Koul:
 "Core:

   - New API to combine configuration and preparation and users

  New hardware support:

   - Mediatek MT8189 SoC uart dma support

  Updates:

   - Designware dma driver flatten desc structures and simplify code,
     interrupt-path groundwork changes, first part of PCI EP DMA support

   - Updates to zynqmp_dma with runtime PM and device removal
     improvments

   - Xilinx dma optimizations for AXIDMA and MCDMA channel management"

* tag 'dmaengine-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (73 commits)
  dmaengine: dw-edma: Mark emulated IRQ as level-triggered
  dmaengine: idxd: assign all engines to group 0 in IAA defaults
  dmaengine: qcom_hidma: remove conditional return with no effect
  dmaengine: qcom-bam-dma: fix autosuspend cleanup during removal
  dmaengine: fsl-edma: tracing: no ptr dereference during log output
  dmaengine: dw-edma: Program endpoint function numbers
  dmaengine: dw-edma-pcie: Add chip flags to match data
  dmaengine: dw-edma-pcie: Handle optional data blocks
  dmaengine: dw-edma-pcie: Factor out descriptor block address lookup
  dmaengine: dw-edma-pcie: Add register offset match flag
  dmaengine: dw-edma-pcie: Add platform ops to match data
  dmaengine: dw-edma-pcie: Rename vsec_data to dma_data
  dmaengine: dw-edma-pcie: Add capability match data
  dmaengine: dw-edma-pcie: Track non-LL mode in DMA data
  dmaengine: dw-edma: Add partial channel ownership mode
  dmaengine: dw-edma: Initialize IRQ data before requesting IRQs
  dmaengine: dw-edma: Add core quiesce operations
  dmaengine: dw-edma: Add per-channel interrupt routing control
  dmaengine: dw-edma: Factor out HDMA interrupt setup helper
  dmaengine: dw-edma: Defer channel IRQ handling to workqueue
  ...
 2026-08-24 12:21:15 -07:00
Linus Torvalds
cf9610f911 Pin control bulk changes for kernel v7.3 
Core changes:
 
 - Use the non-blocking mux_state_try_select() in the generic
   MUX pin control back-end.
 
 - Free pin maps on pinctrl_generic_to_map() failure in the core
   helpers.
 
 New drivers:
 
 - Qualcomm Maili TLMM SoC pin control.
 
 - Qualcomm PMG1110 PMIC pin control.
 
 - Qualcomm Eliza LPASS LPI TLMM SoC pin control (this is for
   the low power audio, LPASS = Low Power Audio SubSystem
   portions).
 
 - Upboard support on top of the Intel pin controller.
 
 - Apple T6030 and T6031 support (just compatible strings).
 
 - Samsung Exynos 8855 SoC pin control.
 
 - Mediatek MT6858 SoC pin control.
 
 - Rockchip RK3308B SoC pin control.
 
 - Rockchip RV1106 SoC pin control.
 
 - Airoha EN7523 SoC pin control.
 
 - Airoha AN7563 SoC pin control.
 
 Improvements:
 
 - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable.
 
 - Qualcomm improvements on top of the Qualcomm PDC (power domain
   controller) irqchip improvements from tglx:s tree.
 
 - Qualcomm IPQ806x and IPQ9650 nonurgent pin grop fixups.
 
 - The NPCM8xx driver has been put into shape fixing many pin and
   group definitions.
 
 - Some nonurgent Tegra 264 pin assignments are fixed up.
 
 - Some nonurgent fixups to Airoha AN7581 and AN7583 registers and
   pin assignments, missing features etc.
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Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

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

   - Use the non-blocking mux_state_try_select() in the generic MUX pin
     control back-end

   - Free pin maps on pinctrl_generic_to_map() failure in the core
     helpers

  New hardware pin control:

   - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC
     (this is for the low power audio, LPASS = Low Power Audio SubSystem
     portions)

   - Upboard support on top of the Intel pin controller

   - Apple T6030 and T6031 support (just compatible strings)

   - Samsung Exynos 8855 SoC

   - Mediatek MT6858 SoC

   - Rockchip RK3308B and RV1106 SoCs

   - Airoha EN7523 and AN7563 SoCs

  Improvements:

   - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable

   - Qualcomm improvements on top of the Qualcomm PDC (power domain
     controller) irqchip improvements from tglx:s tree

   - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups

   - The NPCM8xx driver has been put into shape fixing many pin and
     group definitions

   - Some non-urgent Tegra 264 pin assignments are fixed up

   - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and
     pin assignments, missing features etc"

* tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits)
  dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema
  pinctrl: meson: sync some modify from A4
  pinctrl: meson: a4: Add input enable pin configuration
  pinctrl: realtek: rtd1625: remove unused group name spdif_sel
  pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13
  dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema
  Revert "Merge branch 'ib-rsk7204' into devel"
  pinctrl: rockchip: Add RV1106 pinctrl support
  dt-bindings: pinctrl: rockchip: Add RV1106 compatible
  pinctrl: rockchip: Decode drive strength in the get function
  pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable
  pinctrl: airoha: add support of an7563 SoC
  dt-bindings: pinctrl: airoha: add support of an7563 pin controller
  pinctrl: airoha: try to find chip scu node by phandle first
  pinctrl: airoha: add support of en7523 SoC
  dt-bindings: pinctrl: airoha: add support of en7523 pin controller
  pinctrl: airoha: an7583: add support for olt pinmux
  pinctrl: airoha: an7583: add support for pon_alt pinmux
  pinctrl: airoha: an7583: add support for npu_uart pinmux
  dt-bindings: pinctrl: airoha: an7583: add missed features
  ...
 2026-08-24 08:46:03 -07:00
Linus Torvalds
ed3b875bea mm.git review status for mm-hotfixes-stable..mm-stable 
Everything:
 
 Total patches:       501
 Reviews/patch:       1.66
 Reviewed rate:       70%
 
 Excluding DAMON:
 
 Total patches:       356
 Reviews/patch:       2.26
 Reviewed rate:       90%
 
 Excluding DAMON and selftests:
 
 Total patches:       329
 Reviews/patch:       2.31
 Reviewed rate:       92%
 
 Excluding DAMON, selftests and maple_tree:
 
 Total patches:       328
 Reviews/patch:       2.31
 Reviewed rate:       92%
 
 Summary of patch series in this merge:
 
 - The 2 patch series "mm: drop "sub" prefix from various places" from
   Dev Jain implements some page->folio conversion and a naming cleanup.
 
 - The 2 patch series "mm/kasan: remove redundant initialization for
   kasan_flag_write_only" from Igor Putko provides some KASAN cleanup work.
 
 - The 2 patch series "mm/filemap: reduce unnecessary xarray lookups"
   from Chi Zhiling provides a small speedup in the pagecaache read code.
 
 - The 4 patch series "mm/percpu: Fix possible NOFS/NOIO reclaim
   recursion" from Kaitao Cheng improves a few things in the vmalloc code -
   mainly the avoidance of GFP_KERNEL allocations when the caller asked for
   GFP_NOFS or GFP_NOIO.
 
 - The 3 patch series "mm/kmemleak: avoid soft lockup when scanning task
   stacks" from Breno Leitao avoids a soft lockup watchdog trigger from the
   kmemleak scanning code in extreme situations.
 
 - The 6 patch series "mm/page_owner: misc cleanups" from Ye Liu is a
   collection of unrelated cleanups to the page_owner code.  For some
   reason lots of people have been working on the page_owner code this
   cycle.
 
 - The 4 patch series "mm: convert to walk_page_range_vma() to eliminate
   find_vma()" from Kefeng Wang simplifies and accelerates the page walking
   library function.
 
 - The 3 patch series "mm/migrate: preparatory cleanups for batch copy
   and offload" from Shivank Garg implements cleanups in the migration
   code.
 
 - The 4 patch series "mm/page_owner: add per-fd filter infrastructure
   for print_mode and NUMA filtering" from Zhen Ni provides per-fd
   filtering to page_owner in order to reduce the sometimes vast amount of
   output it can produce.
 
 - The 19 patch series "mm: Refactor bootmem gigantic hugepage
   allocation" from Muchun Song is a "set of fixes and preparatory cleanups
   around bootmem HugeTLB handling, sparse initialization ordering, and
   related vmemmap setup".
 
 - The 4 patch series "mm/zsmalloc: reduce lock contention in zs_free()"
   from Wenchao Hao reduces lock contention in zs_free(), which dominates
   the unmap path under memory pressure on Android (LMK kills) and on x86
   servers running zswap-heavy workloads.  Up to 1.83x improvement in
   microbenchmarking.
 
 - The 2 patch series "move alloc_tag.c file under mm/" from Suren
   Baghdasaryan does that.
 
 - The 6 patch series "samples/damon: handle damon_{start,stop}()
   failures" from SJ Park fixes improper handling of damon_start(),
   damon_stop(), and damon_call() failures across DAMON sample modules to
   prevent potential memory leaks, operation disruptions and use-after-free
   bugs.
 
 - The 11 patch series "mm/damon/sysfs: kobject_del() directories that
   users can create/remove" from SJ Park resolves an issue where delayed
   sysfs directory removal under CONFIG_DEBUG_KOBJECT_RELEASE causes
   creation failures due to duplicate directory names by adding missing
   kobject_del() calls before creating new directories.
 
 - The 3 patch series "mm: cleanup clear_not_present_full_ptes()" from
   David Hildenbrand cleans up the core pte handling code.
 
 - The 3 patch series "selftests/damon: misc fixes for test bugs" from
   Kunwu Chan fixes several bugs in the DAMON selftests.
 
 - The 2 patch series "selftests/damon: fix memcg_path staging handling"
   from Cheng Nie fixes a bug in _damon_sysfs.py for damos_filter
   memcg_path setup, and adds a test case for it in sysfs.py.
 
 - The 2 patch series "selftests/damon: test kdamond refresh_ms" from
   Ruslan Valiyev introduces selftest coverage for DAMON's refresh_ms sysfs
   feature by updating the test control module and verifying that scheme
   stats update automatically without manual intervention.
 
 - The 5 patch series "mm/damon: five misc fixups" from Akinobu Mita
   contains miscellaneous DAMON fixups.
 
 - The 2 patch series "mm/damon/core: detect internal variation above
   max_nr_regions/2" from Jiayuan Chen fixes DAMON's region splitting
   behavior when region counts exceed half the maximum budget by
   dynamically scaling down the split fraction as the limit approaches,
   preventing large regions from staying un-split, and adds corresponding
   KUnit test coverage.
 
 - The 6 patch series "mm: preparatory patches for PMD level swap
   entries" from Usama Arif refactors and cleans up PMD softleaf helpers,
   call sites, and architecture flags to lay the groundwork for a follow-up
   series that introduces PMD page table swap entries.
 
 - The 11 patch series "mm/damon: update, optimize, and clean up doc,
   tests, and code" from SJ Park updates DAMON design and ABI
   documentation, expands unit and selftest coverage, optimizes
   damon_commit_target_regions(), and cleans up recently added sysfs
   interface code for better readability.
 
 - The 2 patch series "mm/vmpressure: reduce CPU, memory and code
   overhead on cgroup v2" from Usama Arif optimizes vmpressure() by
   skipping unnecessary work on cgroup v2 for userspace event notifications
   and refactors v1-only eventfd handling into mm/memcontrol-v1.c to reduce
   memory overhead and code complexity.
 
 - The 10 patch series "selftests/mm: refactor pkey helpers and fix mmap
   error handling" from Hongfu Li refactors pkeys shared tracing and
   assertion helpers into a common file, unifies protection key selftests
   to use consistent diagnostic logging and assertions, and enforces
   standardized MAP_FAILED return checks for mmap() calls across the tests.
 
 - The 18 patch series "mm/damon: optimize out nr_accesses_bp" from SJ
   Park replaces the error-prone, continuously updated nr_accesses_bp field
   in damon_region with an on-demand moving sum function
   (damon_nr_accesses_mvsum()), reducing structure memory overhead and
   avoiding state corruption bugs.
 
 - The 6 patch series "Open HugeTLB allocation routine for more generic
   use" from Ackerley Tng decouples HugeTLB folio allocation from VMA
   dependencies by introducing hugetlb_alloc_folio(), enabling subsystems
   like guest_memfd to allocate HugeTLB folios without standard VMA
   reservations or pseudo-VMAs.
 
 - The 3 patch series "mm/damon: provide pseudo moving sum probe_hits"
   from SJ Park integrates DAMON's probe_hits attribute counter into the
   pseudo moving sum infrastructure, enabling real-time, online monitoring
   without waiting for full aggregation intervals.
 
 - The 18 patch series "mm: Some cleanups for page allocator APIs" from
   Brendan Jackman simplifies and refactors the page allocator entry points
   and flags by unifying allocation paths, adding internal alloc_flags
   arguments, and eliminating redundant __ prefixed alloc_pages variants.
 
 - The 5 patch series "Fix incorrect access of hugetlb pte entries" from
   Dev Jain enforces the consistent use of huge_ptep_get() instead of
   ptep_get() for HugeTLB entries and fixes an unaligned address issue in
   arm64's huge_ptep_get() implementation.
 
 - The 8 patch series "mm/damon: validate all parameters in the core"
   from SJ Park consolidates parameter validation into the DAMON core
   specifically within damon_start() and damon_commit_ctx() to centralize
   error checking, eliminate caller-side redundant checks and to improve
   maintenance efficiency.
 
 - The 3 patch series "tools/mm/page_owner_sort: fix filtering and
   cleanup issues" from Yichong Chen renames is_need() to filter_record()
   for clearer return semantics, fixes per-record allocation memory leaks
   and bounds output copies in search_pattern() to address an existing
   buffer issue.
 
 - The 4 patch series "memcg: bail out reclaim when memcg is dying" from
   Jiayuan Chen mitigates a system-wide stall which occurs when a cgroup is
   removed while one of its memory control files is doing synchronous
   reclaim.
 
 - The 5 patch series "mm/memory-failure: add panic option for
   unrecoverable pages" from Breno Leitao introduces an opt-in
   vm.panic_on_unrecoverable_memory_failure sysctl that immediately panics
   the kernel on unrecoverable memory errors in kernel-owned pages to
   preserve error context and prevent delayed, silent data corruption.
 
 - The 11 patch series "mm/damon: refactor damon_{start,stop,commit}()
   for simple error handling" from SJ Park refactors the DAMON core API
   functions to guarantee that all contexts are fully stopped when
   damon_start(), damon_stop(), or damon_commit() fail, eliminating the
   need for complex and error-prone caller-side cleanup code.
 
 - The 5 patch series "Keep tail page private zero at free and folio
   split" from Zi Yan adds checks to ensure tail_page->private is zero when
   freeing compound or high-order pages and when promoting tail pages
   during large folio splits.  By validating these fields at free and split
   time, it allows the removal of redundant private field clearing inside
   prep_compound_tail().
 
 - The 4 patch series "mm: drop redundant lru_add_drain in anon folio
   reuse paths" from Barry Song eliminates redundant lru_add_drain() calls
   in wp_can_reuse_anon_folio() and do_swap_page() to reduce LRU lock
   contention and system overhead.
 
   By validating folio refcounts against the LRU cache before draining
   and removing unnecessary drains in the swap path, it achieves up to a
   30.5% reduction in drain calls during heavy swap workloads.
 
 - The 3 patch series "mm: clean up folio LRU and swap declarations" from
   Jianyue Wu reorganizes folio LRU and swap code by relocating
   page-cluster state to mm/swap_state.c, renaming mm/swap.c to mm/folio.c,
   and moving MM-internal reclaim declarations into mm/internal.h.
 
 - The 15 patch series "userfaultfd: working set tracking for VM guest
   memory" from Kiryl Shutsemau adds userfaultfd support for tracking the
   working set of VM guest memory, so a VMM can identify hot pages and
   reclaim cold ones to tiered or remote storage.
 
 - The 10 patch series "mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part
   2)" from David Hildenbrand removes the remaining pieces of
   CONFIG_HAVE_BOOTMEM_INFO_NODE, performing some smaller cleanups around
   freeing of reserved vmemmap pages on the way.
 
 - The 7 patch series "mm/damon: update probe hits for runtime parameter
   commits" from SJ Park ensures that DAMON's probe_hits attribute counter
   is properly updated when monitoring intervals are changed at runtime,
   matching the behavior of nr_accesses.  To achieve this, it refactors and
   renames existing helper functions for shared use, applies the updates to
   probe_hits, and handles edge cases in damon_probe_hits_mvsum() to
   maintain measurement accuracy.
 
 - The 3 patch series "KSM: performance optimizations for rmap_walk_ksm"
   from xu xin resolves a severe KSM reverse-mapping performance bottleneck
   where thousands of split VMAs sharing a single anon_vma cause extended
   lock contention.  By adding an interval-filtering check during the rmap
   walk, it reduces worst-case anon_vma lock hold times from over 500ms
   down to under 2ms, preventing application freezes and latency spikes
   under memory pressure.
 
 - The 3 patch series "mm: split a couple of headers from internal.h"
   from Mike Rapoport splits declarations related to mm_init, memblock,
   vmalloc and sparse into new headers.
 
 - The 2 patch series "KSM: use linear_page_index in collect_procs_ksm()"
   from xu xin applies the interval tree optimization from rmap_walk_ksm()
   to collect_procs_ksm() to avoid iterating over non-matching VMAs during
   KSM memory error handling.  It hoists loop-invariant address
   initialization and restricts the anon_vma_interval_tree_foreach walk to
   a targeted page offset range, reducing redundant checks and improving
   lookup efficiency.
 
 - The 3 patch series "selftests/mm: avoid false failures in hugetlb and
   KSM tests" from Sayali Patil fixes issues in the hugetlb and KSM MM
   selftest categories that can report failures when the prerequisites for
   the tests are not satisfied.
 
 - The 19 patch series "mm/damon: introduce data attributes only
   monitoring" from SJ Park introduces attribute-weighted region management
   in DAMON, allowing users to prioritize specific data attributes (such as
   page sizes or cgroups) over or instead of access monitoring.
 
   By assigning weights to attribute probes, DAMON can completely disable
   access tracking and adjust monitoring regions based on weighted
   probe-hit counters to optimize monitoring quality for attribute-focused
   workloads.
 
 - The 8 patch series "mm/hmm: Add mmap lock-drop support for
   userfaultfd-backed mappings" from Stanislav Kinsburskii extends
   hmm_range_fault() to support userfaultfd-backed regions by allowing the
   mmap lock to be dropped during fault handling via a new
   hmm_range_fault_locked() helper.
 
   By accepting a locked pointer and signaling retry status when lock
   release occurs, it enables page fault resolution in userfaultfd regions
   while preserving backward compatibility for existing callers.
 
 - The 33 patch series "mm: make VMA page offset handling more
   consistent" from Lorenzo Stoakes cleans up and standardizes how
   vma->vm_pgoff is accessed and manipulated across file-backed and
   anonymous mappings in the kernel.
 
   It introduces dedicated helper functions such as vma_start_pgoff(),
   vma_end_pgoff(), vma_set_pgoff() and linear_page_delta() while renaming
   rmap interval tree helpers to better reflect their functionality.
 
   These changes establish a cleaner foundation for future work that will
   unify virtual page offset indexing for all anonymous and CoW'd folios.
 
 - The 3 patch series "mm: handle device-private PMDs in walk callbacks"
   from Usama Arif addresses kernel panics and state corruption caused by
   MM walk callbacks reaching non-present device-private PMD swap entries
   created during HMM migrations.
 
   It ensures that functions which acquire pmd_trans_huge_lock() properly
   recognize device-private PMDs instead of assuming a present THP or a
   standard migration entry.
 
 - The 5 patch series "mm/rmap: Refactor try_to_unmap_one" from Dev Jain
   refactors try_to_unmap_one by modularizing Hugetlb, anonymous-lazyfree,
   and anonymous-swapbacked logic into dedicated functions, laying the
   structural groundwork for batched anonymous large folio unmapping.
 
 - The 4 patch series "Docs/ABI/damon: sysfs ABI document fixes and
   additions" from Song Hu fixes typos and fills in missing entries in the
   DAMON sysfs ABI document.
 
 - The 10 patch series "dax/kmem: atomic whole-device hotplug via sysfs"
   from Gregory Price introduces an atomic sysfs state attribute and
   supporting DAX/MM infrastructure to prevent userland races when
   offlining and removing entire memory regions.
 
   By adding an unplugged state alongside standard online modes, it
   enables whole-device atomic hotplug control while preserving backward
   compatibility.
 
 - The 13 patch series "mm: convert more vm_flags_t users to vma_flags_t"
   from Lorenzo Stoakes continues transitioning the kernel from the
   deprecated vm_flags_t type to vma_flags_t across core memory management
   infrastructure.
 
   It replaces legacy type usage in core functions such as do_mmap(),
   unmapped area allocation, mm->def_vma_flags, and VMA operations like
   mlock, mprotect, and mremap.
 
 - The 2 patch series "Two small patches to clean up mm/mm_slot.h" from
   xu xin refactors mm_slot.h by introducing mm_slot_remove() to unify
   duplicate slot deletion sequences in khugepaged and KSM.  It also adds
   code documentation explaining why mm_slot_lookup and mm_slot_insert must
   remain as preprocessor macros rather than static inline functions.
 
 - The 10 patch series "mm/damon/core: hide core-private struct fields"
   from SJ Park cleans up DAMON core structures by consistently marking
   internal-only fields with private: comment tags to prevent improper
   direct access from outer layers.
 
   It enforces encapsulation across core structures including
   damon_region, damon_target, and damon_ctx and updates DAMON_SYSFS to
   interact through approved access APIs instead of exposing raw struct
   members.
 
 - The 6 patch series "mm/damon: unurgent fixes for infinite loop, NULL
   de-ref and races" from SJ Park addresses potential infinite loops, NULL
   dereferences, and race conditions identified in DAMON.
 
   It fixes an infinite loop triggered by extreme user configurations, a
   NULL pointer dereference within unit tests and minor monitoring
   accuracy degradation caused by subtle runtime races.
 
 - The 2 patch series "mm/page_alloc: fixes for free_pages_nolock() on
   RT/UP" from Brendan Jackman fixes an NMI safety flaw in
   __free_frozen_pages() where freeing pages on non-SMP or PREEMPT_RT
   kernels can bypass can_spin_trylock() checks via non-PCP or isolated
   migration paths.
 
   It also resolves potential kernel crashes and privilege escalation
   risks triggered when BPF tracing runs in NMI context alongside memory
   hotplug or large allocation frees.
 
 - The 4 patch series "mm/page_alloc: couple of followups for recent
   cleanups" from Brendan Jackman cleans up and updates page allocator
   nomenclature, documentation, and debug assertions.
 
   It aligns internal FPI_ flags with the public "nolock" naming
   convention, removes outdated internal implementation details from
   high-level page allocator comments, and eliminates obsolete VM_BUG_ON()
   assertions in allocation paths.
 
 - The 3 patch series "mm/mseal: further cleanups" from Lorenzo Stoakes
   refactors and simplifies the mseal implementation by clarifying API
   boundaries and removing unnecessary code complexity.
 
   It replaces generic do_mseal() usage outside the syscall with a
   dedicated mseal_mmap_page_zero() helper for MMAP_PAGE_ZERO, eliminates
   mm_struct parameters to enforce that sealing applies only to
   current->mm, and streamlines overall logic and comments with no
   functional changes intended.
 
 - The 4 patch series "mm/vmscan: fix swappiness=max and clean up
   per-node proactive reclaim" from Ridong Chen resolves reclaim behavior
   bugs and cleans up function parameters across memory reclaim paths.
 
   It fixes swappiness=max in both standard reclaim and MGLRU so
   unswappable anonymous memory no longer falls back to evicting page
   cache, ensures reclaim_store() returns accurate error codes instead of
   collapsing all failures into -EAGAIN, and removes the obsolete gfp_mask
   parameter from __node_reclaim().
 
 - The 6 patch series "mm: mincore: misc cleanups" from Kefeng Wang
   cleans up and simplifies the mincore code.  Most importantly, it removes
   the historical special behavior that always reports VM_PFNMAP pages as
   non-resident.
 
 - The 2 patch series "mm/huge_memory: drop dead split helper variants"
   from Kiryl Shutsemau implements two trivial cleanups in the folio split
   API.
 
 - The 7 patch series "mm/damon: fix uninitialized DAMOS field and kunit
   exec expectation bugs" from SJ Park resolves minor operational and
   testing bugs in DAMON identified by Sashiko.  It initializes the
   damos->last_applied field to prevent occasional efficiency degradation
   and fixes invalid memory accesses in DAMON KUnit tests during test
   failure handling.
 
 - The 3 patch series "cleanup for stable_page_flags()" from Jinjiang Tu
   cleans up and refactors stable_page_flags() used by /proc/kpageflags
   without altering functionality.
 
   It uses BIT_ULL() to prevent shift-overflow warnings on 64-bit flag
   bits, converts folio-specific flag checks to standard folio_test_*()
   helpers, and removes redundant CONFIG_PAGE_IDLE_FLAG handling.
 
 - The 3 patch series "Batch unmap of uffd-wp file folios" from Dev Jain
   extends batched folio unmapping support to file folios within
   userfaultfd write-protect (uffd-wp) VMAs by adding batching capabilities
   to pte_install_uffd_wp_if_needed().
 
   This removes special-case restrictions on uffd-wp VMAs in
   try_to_unmap_one(), significantly simplifying the function's control
   flow and complexity.
 
 - The 3 patch series "mm/early_ioremap: clarify and clean up
   early_ioremap_reset()" from Sang-Heon Jeon clarifies and cleans up the
   architecture-specific usage of __late_set_fixmap() and
   __late_clear_fixmap() after early_ioremap_reset().
 
   It adds explicit documentation regarding when early_ioremap_reset()
   must be called and removes redundant macro definitions and reset calls
   in the RISC-V and ARM64 architectures.
 
 - The 4 patch series "mm: fix reclaim storms in defrag_mode" from
   Johannes Weiner addresses severe performance regressions, swap storms,
   and spurious OOMs caused by vm.defrag_mode=1 under high memory pressure
   in Meta production.
 
   It updates the page allocator slowpath so non-movable allocation
   requests actively trigger direct reclaim and direct compaction at
   pageblock_order scale, allowing them to claim whole pageblocks rather
   than spinning unproductively.
 
 - The 2 patch series "zram: lockmap tweaks" from Sebastian Siewior
   optimizes and fixes lockdep tracking for zram devices by consolidating
   per-entry lockmaps and isolating lock classes across multiple instances.
 
   It reduces memory overhead by replacing per-entry lockdep_map instances
   with a single map per struct zram, and assigns a dynamic lock_class_key
   to each instance to prevent false deadlock reports when different zram
   devices are backed by distinct filesystems.
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Merge tag 'mm-stable-2026-08-18-18-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - "mm: drop "sub" prefix from various places" (Dev Jain)

   page->folio conversion and a naming cleanup

 - "mm/kasan: remove redundant initialization for kasan_flag_write_only"
   (Igor Putko)

   KASAN cleanup work

 - "mm/filemap: reduce unnecessary xarray lookups" (Chi Zhiling)

   Small speedup in the pagecaache read code

 - "mm/percpu: Fix possible NOFS/NOIO reclaim recursion" (Kaitao Cheng)

   Improve the vmalloc code - mainly the avoidance of GFP_KERNEL
   allocations when the caller asked for GFP_NOFS or GFP_NOIO

 - "mm/kmemleak: avoid soft lockup when scanning task stacks" (Breno
   Leitao)

   Avoid a soft lockup watchdog trigger from the kmemleak scanning code
   in extreme situations

 - "mm/page_owner: misc cleanups" (Ye Liu)

   Cleanups to the page_owner code. For some reason lots of people have
   been working on the page_owner code this cycle.

 - "mm: convert to walk_page_range_vma() to eliminate find_vma()"
   (Kefeng Wang)

   Simplify and accelerate the page walking library function

 - "mm/migrate: preparatory cleanups for batch copy and offload"
   (Shivank Garg)

   Cleanups in the migration code

 - "mm/page_owner: add per-fd filter infrastructure for print_mode and
   NUMA filtering" (Zhen Ni)

   Per-fd filtering to page_owner in order to reduce the sometimes vast
   amount of output it can produce

 - "mm: Refactor bootmem gigantic hugepage allocation" (Muchun Song)

   Fixes and preparatory cleanups around bootmem HugeTLB handling,
   sparse initialization ordering, and related vmemmap setup

 - "mm/zsmalloc: reduce lock contention in zs_free()" (Wenchao Hao)

   Reduce lock contention in zs_free(), which dominates the unmap path
   under memory pressure on Android (LMK kills) and on x86 servers
   running zswap-heavy workloads.

   Up to 1.83x improvement in microbenchmarking.

 - "move alloc_tag.c file under mm/" (Suren Baghdasaryan)

 - "samples/damon: handle damon_{start,stop}() failures" (SJ Park)

   Fix improper handling of damon_start(), damon_stop(), and
   damon_call() failures across DAMON sample modules to prevent
   potential memory leaks, operation disruptions and use-after-free
   bugs

 - "mm/damon/sysfs: kobject_del() directories that users can
   create/remove" (SJ Park)

   Fix delayed sysfs directory removal under DEBUG_KOBJECT_RELEASE
   causeing creation failures due to duplicate directory names by adding
   missing kobject_del() calls before creating new directories

 - "mm: cleanup clear_not_present_full_ptes()" (David Hildenbrand)

   Clean up the core pte handling code

 - "selftests/damon: misc fixes for test bugs" (Kunwu Chan)

   Fix several bugs in the DAMON selftests

 - "selftests/damon: fix memcg_path staging handling" (Cheng Nie)

   Fix a bug in _damon_sysfs.py for damos_filter memcg_path setup, and
   add a test case for it in sysfs.py.

 - "selftests/damon: test kdamond refresh_ms" (Ruslan Valiyev)

   Selftest coverage for DAMON's refresh_ms sysfs feature by updating
   the test control module and verifying that scheme stats update
   automatically without manual intervention

 - "mm/damon: five misc fixups" (Akinobu Mita)

   Miscellaneous DAMON fixups.

 - "mm/damon/core: detect internal variation above max_nr_regions/2"
   (Jiayuan Chen)

   Fix DAMON's region splitting behavior when region counts exceed half
   the maximum budget by dynamically scaling down the split fraction as
   the limit approaches, preventing large regions from staying un-split,
   and add corresponding KUnit test coverage

 - "mm: preparatory patches for PMD level swap entries" (Usama Arif)

   Refactor and clean up PMD softleaf helpers, call sites, and
   architecture flags to lay the groundwork for a follow-up series that
   introduces PMD page table swap entries

 - "mm/damon: update, optimize, and clean up doc, tests, and code" (SJ
   Park)

   Update DAMON design and ABI documentation, expands unit and selftest
   coverage, optimize damon_commit_target_regions(), and clean up
   recently added sysfs interface code for better readability

 - "mm/vmpressure: reduce CPU, memory and code overhead on cgroup v2"
   (Usama Arif)

   Optimize vmpressure() by skipping unnecessary work on cgroup v2 for
   userspace event notifications and refactor v1-only eventfd handling
   into mm/memcontrol-v1.c to reduce memory overhead and code complexity

 - "selftests/mm: refactor pkey helpers and fix mmap error handling"
   (Hongfu Li)

   Refactor pkeys shared tracing and assertion helpers into a common
   file, unify protection key selftests to use consistent diagnostic
   logging and assertions, and enforce standardized MAP_FAILED return
   checks for mmap() calls across the tests

 - "mm/damon: optimize out nr_accesses_bp" (SJ Park)

   Replace the error-prone, continuously updated nr_accesses_bp field in
   damon_region with an on-demand moving sum function, reducing
   structure memory overhead and avoiding state corruption bugs

 - "Open HugeTLB allocation routine for more generic use" (Ackerley Tng)

   Decouple HugeTLB folio allocation from VMA dependencies by
   introducing hugetlb_alloc_folio(), enabling subsystems like
   guest_memfd to allocate HugeTLB folios without standard VMA
   reservations or pseudo-VMAs

 - "mm/damon: provide pseudo moving sum probe_hits" (SJ Park)

   Integrate DAMON's probe_hits attribute counter into the pseudo moving
   sum infrastructure, enabling real-time, online monitoring without
   waiting for full aggregation intervals

 - "mm: Some cleanups for page allocator APIs" (Brendan Jackman)

   Simplify and refactor the page allocator entry points and flags by
   unifying allocation paths, adding internal alloc_flags arguments, and
   eliminating redundant __ prefixed alloc_pages variants.

 - "Fix incorrect access of hugetlb pte entries" (Dev Jain)

   Enforce the consistent use of huge_ptep_get() instead of ptep_get()
   for HugeTLB entries and fixes an unaligned address issue in arm64's
   huge_ptep_get() implementation

 - "mm/damon: validate all parameters in the core" (SJ Park)

   Consolidate parameter validation into the DAMON core specifically
   within damon_start() and damon_commit_ctx() to centralize error
   checking, eliminate caller-side redundant checks and to improve
   maintenance efficiency

 - "tools/mm/page_owner_sort: fix filtering and cleanup issues" (Yichong
   Chen)

   Rename is_need() to filter_record() for clearer return semantics, fix
   per-record allocation memory leaks and bound output copies in
   search_pattern() to address an existing buffer issue

 - "memcg: bail out reclaim when memcg is dying" (Jiayuan Chen)

   Mitigate a system-wide stall which occurs when a cgroup is removed
   while one of its memory control files is doing synchronous reclaim

 - "mm/memory-failure: add panic option for unrecoverable pages" (Breno
   Leitao)

   Introduce an opt-in vm.panic_on_unrecoverable_memory_failure sysctl
   that immediately panics the kernel on unrecoverable memory errors in
   kernel-owned pages to preserve error context and prevent delayed,
   silent data corruption

 - "mm/damon: refactor damon_{start,stop,commit}() for simple error
   handling" (SJ Park)

   Refactor the DAMON core API functions to guarantee that all contexts
   are fully stopped when damon_start(), damon_stop(), or damon_commit()
   fail, eliminating the need for complex and error-prone caller-side
   cleanup code

 - "Keep tail page private zero at free and folio split" (Zi Yan)

   Add checks to ensure tail_page->private is zero when freeing compound
   or high-order pages and when promoting tail pages during large folio
   splits. By validating these fields at free and split time, it allows
   the removal of redundant private field clearing inside
   prep_compound_tail()

 - "mm: drop redundant lru_add_drain in anon folio reuse paths" (Barry
   Song)

   Eliminate redundant lru_add_drain() calls in
   wp_can_reuse_anon_folio() and do_swap_page() to reduce LRU lock
   contention and system overhead

   By validating folio refcounts against the LRU cache before draining
   and removing unnecessary drains in the swap path, it achieves up to a
   30.5% reduction in drain calls during heavy swap workloads

 - "mm: clean up folio LRU and swap declarations" (Jianyue Wu)

   Reorganize folio LRU and swap code by relocating page-cluster state
   to mm/swap_state.c, renaming mm/swap.c to mm/folio.c, and moving
   MM-internal reclaim declarations into mm/internal.h.

 - "userfaultfd: working set tracking for VM guest memory" (Kiryl
   Shutsemau)

   Add userfaultfd support for tracking the working set of VM guest
   memory, so a VMM can identify hot pages and reclaim cold ones to
   tiered or remote storage

 - "mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 2)" (David
   Hildenbrand)

   Remove the remaining pieces of CONFIG_HAVE_BOOTMEM_INFO_NODE,
   performing some smaller cleanups around freeing of reserved vmemmap
   pages on the way.

 - "mm/damon: update probe hits for runtime parameter commits" (SJ Park)

   Ensure that DAMON's probe_hits attribute counter is properly updated
   when monitoring intervals are changed at runtime, matching the
   behavior of nr_accesses. To achieve this, it refactors and renames
   existing helper functions for shared use, applies the updates to
   probe_hits, and handles edge cases in damon_probe_hits_mvsum() to
   maintain measurement accuracy.

 - "KSM: performance optimizations for rmap_walk_ksm" (xu xin)

   Resolve a severe KSM reverse-mapping performance bottleneck where
   thousands of split VMAs sharing a single anon_vma cause extended lock
   contention.

   By adding an interval-filtering check during the rmap walk, it
   reduces worst-case anon_vma lock hold times from over 500ms down to
   under 2ms, preventing application freezes and latency spikes under
   memory pressure.

 - "mm: split a couple of headers from internal.h" (Mike Rapoport)

   Split declarations related to mm_init, memblock, vmalloc and sparse
   into new headers

 - "KSM: use linear_page_index in collect_procs_ksm()" (xu xin)

   Apply the interval tree optimization from rmap_walk_ksm() to
   collect_procs_ksm() to avoid iterating over non-matching VMAs during
   KSM memory error handling.

   It hoists loop-invariant address initialization and restricts the
   anon_vma_interval_tree_foreach walk to a targeted page offset range,
   reducing redundant checks and improving lookup efficiency.

 - "selftests/mm: avoid false failures in hugetlb and KSM tests" (Sayali
   Patil)

   Fix issues in the hugetlb and KSM MM selftest categories that can
   report failures when the prerequisites for the tests are not
   satisfied

 - "mm/damon: introduce data attributes only monitoring" (SJ Park)

   Introduce attribute-weighted region management in DAMON, allowing
   users to prioritize specific data attributes (such as page sizes or
   cgroups) over or instead of access monitoring.

   By assigning weights to attribute probes, DAMON can completely
   disable access tracking and adjust monitoring regions based on
   weighted probe-hit counters to optimize monitoring quality for
   attribute-focused workloads.

 - "mm/hmm: Add mmap lock-drop support for userfaultfd-backed mappings"
   (Stanislav Kinsburskii)

   Extend hmm_range_fault() to support userfaultfd-backed regions by
   allowing the mmap lock to be dropped during fault handling via a new
   hmm_range_fault_locked() helper.

   By accepting a locked pointer and signaling retry status when lock
   release occurs, it enables page fault resolution in userfaultfd
   regions while preserving backward compatibility for existing callers.

 - "mm: make VMA page offset handling more consistent" (Lorenzo Stoakes)

   Clean up and standardize how vma->vm_pgoff is accessed and
   manipulated across file-backed and anonymous mappings in the kernel

   It introduces dedicated helper functions such as vma_start_pgoff(),
   vma_end_pgoff(), vma_set_pgoff() and linear_page_delta() while
   renaming rmap interval tree helpers to better reflect their
   functionality.

   These changes establish a cleaner foundation for future work that
   will unify virtual page offset indexing for all anonymous and CoW'd
   folios.

 - "mm: handle device-private PMDs in walk callbacks" (Usama Arif)

   Address kernel panics and state corruption caused by MM walk
   callbacks reaching non-present device-private PMD swap entries
   created during HMM migrations

   It ensures that functions which acquire pmd_trans_huge_lock()
   properly recognize device-private PMDs instead of assuming a present
   THP or a standard migration entry.

 - "mm/rmap: Refactor try_to_unmap_one" (Dev Jain)

   Refactor try_to_unmap_one by modularizing Hugetlb,
   anonymous-lazyfree, and anonymous-swapbacked logic into dedicated
   functions, laying the structural groundwork for batched anonymous
   large folio unmapping.

 - "Docs/ABI/damon: sysfs ABI document fixes and additions" (Song Hu)

   Fix typos and fills in missing entries in the DAMON sysfs ABI
   document

 - "dax/kmem: atomic whole-device hotplug via sysfs" (Gregory Price)

   Introduce an atomic sysfs state attribute and supporting DAX/MM
   infrastructure to prevent userland races when offlining and removing
   entire memory regions

   By adding an unplugged state alongside standard online modes, it
   enables whole-device atomic hotplug control while preserving backward
   compatibility.

 - "mm: convert more vm_flags_t users to vma_flags_t" (Lorenzo Stoakes)

   Continue transitioning the kernel from the deprecated vm_flags_t type
   to vma_flags_t across core memory management infrastructure.

   It replaces legacy type usage in core functions such as do_mmap(),
   unmapped area allocation, mm->def_vma_flags, and VMA operations like
   mlock, mprotect, and mremap.

 - "Two small patches to clean up mm/mm_slot.h" (xu xin)

   Refactor mm_slot.h by introducing mm_slot_remove() to unify duplicate
   slot deletion sequences in khugepaged and KSM. It also adds code
   documentation explaining why mm_slot_lookup and mm_slot_insert must
   remain as preprocessor macros rather than static inline functions.

 - "mm/damon/core: hide core-private struct fields" (SJ Park)

   Clean up DAMON core structures by consistently marking internal-only
   fields with private: comment tags to prevent improper direct access
   from outer layers.

   It enforces encapsulation across core structures including
   damon_region, damon_target, and damon_ctx and updates DAMON_SYSFS to
   interact through approved access APIs instead of exposing raw struct
   members.

 - "mm/damon: unurgent fixes for infinite loop, NULL de-ref and races"
   (SJ Park)

   Address potential infinite loops, NULL dereferences, and race
   conditions identified in DAMON

   It fixes an infinite loop triggered by extreme user configurations, a
   NULL pointer dereference within unit tests and minor monitoring
   accuracy degradation caused by subtle runtime races.

 - "mm/page_alloc: fixes for free_pages_nolock() on RT/UP" (Brendan
   Jackman)

   Fix an NMI safety flaw in __free_frozen_pages() where freeing pages
   on non-SMP or PREEMPT_RT kernels can bypass can_spin_trylock() checks
   via non-PCP or isolated migration paths.

   It also resolves potential kernel crashes and privilege escalation
   risks triggered when BPF tracing runs in NMI context alongside memory
   hotplug or large allocation frees.

 - "mm/page_alloc: couple of followups for recent cleanups" (Brendan
   Jackman)

   Clean up and update page allocator nomenclature, documentation, and
   debug assertions.

   It aligns internal FPI_ flags with the public "nolock" naming
   convention, removes outdated internal implementation details from
   high-level page allocator comments, and eliminates obsolete
   VM_BUG_ON() assertions in allocation paths.

 - "mm/mseal: further cleanups" (Lorenzo Stoakes)

   Refactor and simplify the mseal implementation by clarifying API
   boundaries and removing unnecessary code complexity.

   It replaces generic do_mseal() usage outside the syscall with a
   dedicated mseal_mmap_page_zero() helper for MMAP_PAGE_ZERO,
   eliminates mm_struct parameters to enforce that sealing applies only
   to current->mm, and streamlines overall logic and comments with no
   functional changes intended.

 - "mm/vmscan: fix swappiness=max and clean up per-node proactive
   reclaim" (Ridong Chen)

   Resolve reclaim behavior bugs and clean up function parameters across
   memory reclaim paths

   It fixes swappiness=max in both standard reclaim and MGLRU so
   unswappable anonymous memory no longer falls back to evicting page
   cache, ensures reclaim_store() returns accurate error codes instead
   of collapsing all failures into -EAGAIN, and removes the obsolete
   gfp_mask parameter from __node_reclaim().

 - "mm: mincore: misc cleanups" (Kefeng Wang)

   Clean up and simplifies the mincore code. Most importantly, it
   removes the historical special behavior that always reports VM_PFNMAP
   pages as non-resident.

 - "mm/huge_memory: drop dead split helper variants" (Kiryl Shutsemau)

   Two trivial cleanups in the folio split API

 - "mm/damon: fix uninitialized DAMOS field and kunit exec expectation
   bugs" (SJ Park)

   Resolve minor operational and testing bugs in DAMON identified by
   Sashiko. It initializes the damos->last_applied field to prevent
   occasional efficiency degradation and fixes invalid memory accesses
   in DAMON KUnit tests during test failure handling.

 - "cleanup for stable_page_flags()" (Jinjiang Tu)

   Clean up and refactor stable_page_flags() used by /proc/kpageflags
   without altering functionality.

   It uses BIT_ULL() to prevent shift-overflow warnings on 64-bit flag
   bits, converts folio-specific flag checks to standard folio_test_*()
   helpers, and removes redundant CONFIG_PAGE_IDLE_FLAG handling.

 - "Batch unmap of uffd-wp file folios" (Dev Jain)

   Extend batched folio unmapping support to file folios within
   userfaultfd write-protect (uffd-wp) VMAs by adding batching
   capabilities to pte_install_uffd_wp_if_needed().

   This removes special-case restrictions on uffd-wp VMAs in
   try_to_unmap_one(), significantly simplifying the function's control
   flow and complexity.

 - "mm/early_ioremap: clarify and clean up early_ioremap_reset()"
   (Sang-Heon Jeon)

   Clarify and clean up the architecture-specific usage of
   __late_set_fixmap() and __late_clear_fixmap() after
   early_ioremap_reset()

   It adds explicit documentation regarding when early_ioremap_reset()
   must be called and removes redundant macro definitions and reset
   calls in the RISC-V and ARM64 architectures.

 - "mm: fix reclaim storms in defrag_mode" (Johannes Weiner)

   Address severe performance regressions, swap storms, and spurious
   OOMs caused by vm.defrag_mode=1 under high memory pressure in Meta
   production

   It updates the page allocator slowpath so non-movable allocation
   requests actively trigger direct reclaim and direct compaction at
   pageblock_order scale, allowing them to claim whole pageblocks rather
   than spinning unproductively.

 - "zram: lockmap tweaks" (Sebastian Siewior)

   Optimize and fix lockdep tracking for zram devices by consolidating
   per-entry lockmaps and isolate lock classes across multiple instances

   This reduces memory overhead by replacing per-entry lockdep_map
   instances with a single map per struct zram, and assigns a dynamic
   lock_class_key to each instance to prevent false deadlock reports
   when different zram devices are backed by distinct filesystems.

* tag 'mm-stable-2026-08-18-18-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (501 commits)
  selftests/mm: thuge-gen: fix test_shmget() for PAGE_SIZE check
  selftests/mm: unpoison pages in memory-failure teardown
  mm/shmem: downgrade final i_blocks check in shmem_evict_inode() to pr_warn()
  mm/khugepaged: replace mutex_lock/mutex_unlock usage with guard macro
  mm/zsmalloc: fix release order of locks in zs_page_migrate()
  Documentation: zram: remove sections numbering
  ksm: stop iterating VMAs when ksm_test_exit returns true
  mm: fold userfaultfd_rwp() to false without CONFIG_ARCH_HAS_PTE_PROTNONE
  mm/migrate: report RCU-tasks quiescent states in migrate_pages_batch()
  zram: use a custom key for each zram object
  zram: move lockmap to be per-zram instead per table
  selftests/mm: fix gup_longterm EINVAL error message
  mm: page_alloc: fix non-movable reclaim storm in defrag_mode
  mm: page_alloc: move capture_control to the page allocator
  mm: compaction: support non-movable compaction for pageblock requests
  mm: page_alloc: __GFP_FS lockdep annotation for direct compaction
  hugetlb: evaluate subpool free state while locked
  mm/damon: remove trailing semicolons after function definitions
  mm/damon/ops-common: prevent migration fallback to non-target nodes
  mm/damon: update outdated comment about DAMOS filter handling
  ...
 2026-08-20 18:17:08 -07:00
Linus Torvalds
920f27122c CXL for v7.3 
CXL core type2 support:
 cxl: Support dpa without a mailbox
 cxl: Support Type2 cxl regs mapping
 
 CXL test type2 support:
 cxl/test: Rework cxl_type2_mem_init() to use cxl_mock_platform_device_add()
 cxl/test: Add cxl_test accelerator driver
 cxl/test: Fixup hdm init for auto region to support type2
 cxl/test: Propagate -ENOMEM on platform_device_alloc() failures
 cxl/test: Add hierarchy enumeration support for type2 device
 cxl/test: Refactor platform device enumerations
 cxl/test: Add type2 support for mock CFMWS0
 cxl/test: Add test for module parameters
 
 CXL port error handling support prep patches:
 cxl: Rename find_cxl_port() to find_cxl_port_by_dport()
 cxl: Tighten CPER kfifo registration API and symbol visibility
 acpi/apei/ghes: Use raw_spinlock_t for CXL CPER work locks
 cxl/ras: Fix cxl_rch_get_aer_severity() wrong severity register
 cxl/ras: Fix cxl_rch_get_aer_info() out-of-bounds AER register read
 
 CXL misc patches:
 cxl/Documentation: Spell out globbed sysfs attribute names
 cxl/test: Assign one mock memdev a full-width serial number
 cxl/core: Format the memdev serial number as unsigned in TP_printk
 cxl/pmem: Format the nvdimm serial number as unsigned decimal
 cxl: Use %pe to print error pointers
 cxl: Deny Features commands on the RAW mailbox path
 
 CXL fixes:
 cxl/region: Use __free(put_device) in find_pos_and_ways()
 cxl/region: Fix use-after-free in find_pos_and_ways() error path
 cxl/features: Clamp Get Feature output size to the remaining buffer
 cxl/features: Reject Set Features output buffer smaller than the header
 cxl/features: Reject Get Feature count larger than the output buffer
 cxl/port: Restart port enumeration when a sibling adds the dport first
 cxl/features: Serialize multi-part Get/Set Feature transfers
 cxl/pci: Honor -EPROBE_DEFER from component register setup
 cxl/mbox: Break poison list loop on an empty payload
 cxl/memdev: Fix firmware upload exact-fit handling
 cxl/features: bound fwctl command payload to the input buffer
 cxl/mce: Make the MCE notifier per-region
 cxl/pci: Remove incorrect mbox.valid check in cxl_pci_type3_init_mailbox()
 cxl: docs/linux/dax-driver - fix typos
 cxl: fix mailbox return code description typo
 cxl/mbox: Clamp mailbox output allocation to the payload size
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Merge tag 'cxl-for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull CXL updates from Dave Jiang:
 "This includes the remaining patches to complete the basic support for
  CXL type2 (accelerators) drivers by the CXL core. A set of unit
  testing support to catch regressions for the CXL core type2 exported
  functions has also been added. The actual CXL type 2 driver support
  for the AMD Solarflare NIC driver has been picked up by net-dev.

  A set of preparatory patches has been picked up from the CXL port
  error handling series in order to reduce the number of patches in that
  series for review. The rest of that series is getting close to be
  merged but was not ready for the 7.3 merge window.

  There are also a number of misc patches and a large number of bug
  fixes against pre-existing issues flagged by sashiko reviews as
  contributors post new patches on the mailing list. We will continue to
  work through the sashiko raised issues as they show up."

* tag 'cxl-for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (35 commits)
  cxl/Documentation: Spell out globbed sysfs attribute names
  cxl: Rename find_cxl_port() to find_cxl_port_by_dport()
  cxl: Tighten CPER kfifo registration API and symbol visibility
  acpi/apei/ghes: Use raw_spinlock_t for CXL CPER work locks
  cxl/ras: Fix cxl_rch_get_aer_severity() wrong severity register
  cxl/ras: Fix cxl_rch_get_aer_info() out-of-bounds AER register read
  cxl/test: Assign one mock memdev a full-width serial number
  cxl/core: Format the memdev serial number as unsigned in TP_printk
  cxl/pmem: Format the nvdimm serial number as unsigned decimal
  cxl: Use %pe to print error pointers
  cxl/region: Use __free(put_device) in find_pos_and_ways()
  cxl/region: Fix use-after-free in find_pos_and_ways() error path
  cxl: Deny Features commands on the RAW mailbox path
  cxl/features: Clamp Get Feature output size to the remaining buffer
  cxl/features: Reject Set Features output buffer smaller than the header
  cxl/features: Reject Get Feature count larger than the output buffer
  cxl/port: Restart port enumeration when a sibling adds the dport first
  cxl/features: Serialize multi-part Get/Set Feature transfers
  cxl/pci: Honor -EPROBE_DEFER from component register setup
  cxl/mbox: Break poison list loop on an empty payload
  ...
 2026-08-20 15:02:09 -07:00
Rafael J. Wysocki
a6fa4d6e38 ACPI: Update upstream ACPICA repository URL in documentation 
Update the URL of the upstream ACPICA repository after recent changes in
the upstream ACPICA project.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/1867400.VLH7GnMWUR@rafael.j.wysocki
 2026-08-20 21:40:29 +02:00
Linus Torvalds
72fdff1416 It has been a not-too-busy cycle for docs; here's the highlights: 
- A (hopefully) consensus change to our LLM-attribution requirements,
   removing the specific model name from the Assisted-by tag.
 
 - A couple of new realtime documents
 
 - Various docs-build-system fixes
 
 - Ongoing work with the Chinese, Portuguese, and Japanese translations.
 
 ...and lots of typo fixes, grammar tweaks, etc.
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Merge tag 'docs-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux

Pull documentation updates from Jonathan Corbet:
 "It has been a not-too-busy cycle for docs; here's the highlights:

   - A (hopefully) consensus change to our LLM-attribution requirements,
     removing the specific model name from the Assisted-by tag

   - A couple of new realtime documents

   - Various docs-build-system fixes

   - Ongoing work with the Chinese, Portuguese, and Japanese
     translations

  ...and lots of typo fixes, grammar tweaks, etc"

* tag 'docs-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux: (85 commits)
  Doc: admin-guide: pm: Remove unnecessary backticks and fix a spell
  Documentation: Extend the real-time hardware bits with some firmware bits
  docs: pt_BR: Reorganize process/index.rst to follow english structure
  docs: conf.py: fix the 'utf-8' typo
  doc tools: fix 'path' typos
  Documentation: real-time: Add kernel configuration guide
  docs: python: abi_regex: convert adjacent index placeholders
  docs: python: abi_regex: catch the right exception for a bad regex
  docs: sphinx-build-wrapper: include localversion in kernel version string
  Documentation: html: adjust sidebar section titles styling
  Documentation: html: show sections in the sidebar
  checkpatch.pl: adapt to new Assisted-by: format
  MAINTAINERS: update Traditional Chinese documentation maintainers
  docs: pt_BR: process: Translate CVE documentation
  docs: pt_BR: translate the management-style.rst to Brazilian Portuguese
  docs: xforms_lists: support DEFINE_IDTENTRY_IRQ()
  coding-assistants: simplify attribution
  docs: translations: pt_BR: translate email-clients.rst
  docs: pt_BR: process: Translate the security-bugs.rst
  doc:it_IT: align doc-guide translation
  ...
 2026-08-20 10:31:50 -07:00
Linus Torvalds
91ec203513 Networking changes for 7.3. 
Core & protocols
 ----------------
 
  - A few steps lowering rtnl_lock dependence:
    - per-netns netdev unregistration for select SW drivers
      (e.g. veth, ipvlan, tunnels)
    - rtnl_lock-less FIB rule changes (RTM_NEWRULE and RTM_DELRULE)
    - prepare software drivers and TC qdiscs for rtnl_lock-less GET
 
  - Support BIG TCP (>64kB TSO) in UDP tunnels (vxlan, geneve).
 
  - Support buffers larger than PAGE_SIZE in devmem zero-copy API.
 
  - Improve MPTCP handling of extreme memory pressure handling,
    when out-of-order queue had to be pruned.
 
  - Report the per-group user count via RTM_GETMULTICAST.
 
  - Expose the route deletion reason in RTM_DELROUTE.
 
  - Add a SO_RIGHTS_NOTRUNC option to UNIX sockets to enable more useful
    handling of LSM denials when receiving SCM_RIGHTS messages: instead
    of truncating the message at the first blocked fd, keep every fd slot
    and store the LSM errno in the blocked slot.
 
  - IPv6 Segment Routing - support looking up the post-encap SID
    (address) in a different/specified routing table.
 
  - Support PRP RedBox (interlink) creation.
 
  - Support per-nexthop UDP dst port in VXLAN.
 
  - Continue converting getsockopt callbacks in a number of protocols
    to iov_iter.
 
 Ethernet
 --------
 
  - Marge initial CXL support for AMD/Solarflare NICs (shared branch
    with the CXL tree).
 
  - New drivers:
    - ADIN1140 10BASE-T1S MACPHY
    - Initial skeleton of Intel iXD and ZTE Dinghai drivers.
 
  - High-speed NICs:
    - AMD/Pensando:
      - support firmware flashing
    - Cisco (enic):
      - SR-IOV V2 admin channel and MBOX protocol
    - Huawei (hns3):
      - support for ethtool pfc_prevention_tout
    - nVidia/Mellanox:
      - support sharing bandwidth control across interfaces of
        the same device
    - Marvell (octeontx2-pf):
      - link RQ page pools to netdev for Netlink stats
    - Google vNIC:
      - XDP metadata support for DQ RDA
    - Microsoft vNIC:
      - support forcing full-page RX buffers
 
  - Other NICs:
    - Synopsys IP:
      - eic7700: support for eth1
    - Microchip (lan743x):
      - support for RMII interface
    - Wangxun:
      - support for ethtool -G and -C for VFs
      - add Tx timeout and PCIe error handling
    - Intel (igb/igc):
      - RSS key get/set support
      - support for forcing link speed without auto-negotiation
 
  - Switches:
    - NXP (dpaa2):
      - support bonding/LAG offload
    - Mediatek:
      - mt7530: EN7528 support
      - initial support for MT7628
    - Micrel (ksz8/9):
      - refactoring work to move towards library model
      - PTP support for KSZ8463
    - nVidia/Mellanox:
      - support rtnl-lock-less ethtool callbacks
    - Realtek:
      - rtl8366rb: use generic RTL83xx code
      - support SGMII and HSGMII for RTL8367S
 
  - PHYs:
    - Airoha:
      - EcoNet EN7528 PHY support
    - DAPU Telecom
      - DAPU Telecom DAP8211R(I) Gigabit PHY support
    - Realtek:
      - support RTL8261C_CG
      - support RTL8261D
 
 Wireless
 --------
 
  - nl80211: per-link statistics support for multi-link operation
 
  - mac80211: AQL/airtime-fairness support for multicast
 
  - Merge Peripheral Authentication Service (PAS) / TEE support
    for ath12k (shared branch with the firmware/qcom tree).
 
  - New drivers:
    - mm81x for Morse Micro Long-Range S1G devices
    - nxpwifi for NXP devices (mostly forked off from mwifiex)
 
  - Driver changes:
    - Broadcom (brcmfmac):
      - DPP support, some Cypress part update
    - MediaTek (mt76):
      - mt7928 support
      - mt7925 NAN support
      - mt7996 AP powersave improvements
    - Qualcomm (ath12k):
      - much kernel infrastructure integration work
      - AHB platform MultiPD support
    - Realtek (rt89):
      - LED support
      - RTL8922DE support
      - dual-BT coex for RTL8922D
    - Intel:
      - new FW version support
 
 Bluetooth
 ---------
 
  - HCI: add support for Shorter Connection Interval (SCI) feature.
 
  - af_bluetooth: add minimal context analysis annotations.
 
  - Driver changes:
    - Intel:
      - add Bluetooth SAR revision 2 support
      - add vendor_reset PCI sysfs for PLDR
    - Mediatek:
      - add USB IDs for MT7902 and MT7922 devices
    - Realtek:
      - add USB IDs for 8761CU and 8852BE devices
    - NXP:
      - add M.2 Bluetooth device support using pwrseq
 
 Misc
 ----
 
  - DPLL support for manual/numerical oscillator control (NCO)
    (implement in zl3073x).
 
  - MCTP support for MCTP over USB v1.1 (DMTF DSP0283).
 
  - Power-over-Ethernet: support Realtek PSE controllers.
 
  - Remove the IBM EHEA driver.
 
  - Remove tulip/xircom_cb driver.
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "One of the 'small improvements all over the place' releases for us.

  It's hard to draw any direct comparisons because summer vacations
  disrupted our patch processing (and presumably - generation) quite a
  bit.

  Quick and dirty count suggests we (Paolo and I) merged a very similar
  number of net (632) and net-next (648) patches. This is not telling
  the full story either because 1/3 to 1/2 of the net-next patches also
  *seem* like AI-driven low priority fixes, cleanups and clarifications.

  We are completely overwhelmed, of course. The glimmer of hope is that
  we secured sufficient LLM budget and access (thank you Meta!) to run
  reviews with multiple frontier models on each patch. This eliminates
  some hallucinations. That said, in terms of review, the LLMs can only
  do so much.

  The sad truth is that our APIs (especially for rare events like PCIe
  errors, timeouts etc) have always been racy, and now LLMs don't let us
  ignore that. I expect our direction for the next release will be to
  tweak the reviews a little bit more, but start shifting focus to
  letting the LLMs take care of the busy work - managing patchwork,
  automating common process complaints, editing commit messages, and
  maybe applying patches which already got "reviewed-by" tags from
  people we trust...

  Core & protocols:

   - A few steps lowering rtnl_lock dependence:
      - per-netns netdev unregistration for select SW drivers (e.g.
        veth, ipvlan, tunnels)
      - rtnl_lock-less FIB rule changes (RTM_NEWRULE and RTM_DELRULE)
      - prepare software drivers and TC qdiscs for rtnl_lock-less GET

   - Support BIG TCP (>64kB TSO) in UDP tunnels (vxlan, geneve)

   - Support buffers larger than PAGE_SIZE in devmem zero-copy API

   - Improve MPTCP handling of extreme memory pressure handling, when
     out-of-order queue had to be pruned

   - Report the per-group user count via RTM_GETMULTICAST

   - Expose the route deletion reason in RTM_DELROUTE

   - Add a SO_RIGHTS_NOTRUNC option to UNIX sockets to enable more
     useful handling of LSM denials when receiving SCM_RIGHTS messages:
     instead of truncating the message at the first blocked fd, keep
     every fd slot and store the LSM errno in the blocked slot

   - IPv6 Segment Routing - support looking up the post-encap SID
     (address) in a different/specified routing table

   - Support PRP RedBox (interlink) creation

   - Support per-nexthop UDP dst port in VXLAN

   - Continue converting getsockopt callbacks in a number of protocols
     to iov_iter

  Ethernet:

   - Merge initial CXL support for AMD/Solarflare NICs (shared branch
     with the CXL tree)

   - New drivers:
      - ADIN1140 10BASE-T1S MACPHY
      - Initial skeleton of Intel iXD and ZTE Dinghai drivers

   - High-speed NICs:
      - AMD/Pensando:
         - support firmware flashing
      - Cisco (enic):
         - SR-IOV V2 admin channel and MBOX protocol
      - Huawei (hns3):
         - support for ethtool pfc_prevention_tout
      - nVidia/Mellanox:
         - support sharing bandwidth control across interfaces
           of the same device
      - Marvell (octeontx2-pf):
         - link RQ page pools to netdev for Netlink stats
      - Google vNIC:
         - XDP metadata support for DQ RDA
      - Microsoft vNIC:
         - support forcing full-page RX buffers

   - Other NICs:
      - Synopsys IP:
         - eic7700: support for eth1
      - Microchip (lan743x):
         - support for RMII interface
      - Wangxun:
         - support for ethtool -G and -C for VFs
         - add Tx timeout and PCIe error handling
      - Intel (igb/igc):
         - RSS key get/set support
         - support for forcing link speed without auto-negotiation

   - Switches:
      - NXP (dpaa2):
         - support bonding/LAG offload
      - Mediatek:
         - mt7530: EN7528 support
         - initial support for MT7628
      - Micrel (ksz8/9):
         - refactoring work to move towards library model
         - PTP support for KSZ8463
      - nVidia/Mellanox:
         - support rtnl-lock-less ethtool callbacks
      - Realtek:
         - rtl8366rb: use generic RTL83xx code
         - support SGMII and HSGMII for RTL8367S

   - PHYs:
      - Airoha:
         - EcoNet EN7528 PHY support
      - DAPU Telecom
         - DAPU Telecom DAP8211R(I) Gigabit PHY support
      - Realtek:
         - support RTL8261C_CG
         - support RTL8261D

  Wireless:

   - nl80211: per-link statistics support for multi-link operation

   - mac80211: AQL/airtime-fairness support for multicast

   - Merge Peripheral Authentication Service (PAS) / TEE support for
     ath12k (shared branch with the firmware/qcom tree)

   - New drivers:
      - mm81x for Morse Micro Long-Range S1G devices
      - nxpwifi for NXP devices (mostly forked off from mwifiex)

   - Driver changes:
      - Broadcom (brcmfmac):
         - DPP support, some Cypress part update
      - MediaTek (mt76):
         - mt7928 support
         - mt7925 NAN support
         - mt7996 AP powersave improvements
      - Qualcomm (ath12k):
         - much kernel infrastructure integration work
         - AHB platform MultiPD support
      - Realtek (rt89):
         - LED support
         - RTL8922DE support
         - dual-BT coex for RTL8922D
      - Intel:
         - new FW version support

  Bluetooth:

   - HCI: add support for Shorter Connection Interval (SCI) feature

   - af_bluetooth: add minimal context analysis annotations

   - Driver changes:
      - Intel:
         - add Bluetooth SAR revision 2 support
         - add vendor_reset PCI sysfs for PLDR
      - Mediatek:
         - add USB IDs for MT7902 and MT7922 devices
      - Realtek:
         - add USB IDs for 8761CU and 8852BE devices
      - NXP:
         - add M.2 Bluetooth device support using pwrseq

  Misc:

   - DPLL support for manual/numerical oscillator control (NCO)
     (implement in zl3073x)

   - MCTP support for MCTP over USB v1.1 (DMTF DSP0283)

   - Power-over-Ethernet: support Realtek PSE controllers

   - Remove the IBM EHEA driver

   - Remove tulip/xircom_cb driver"

* tag 'net-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1433 commits)
  net/mlx5e: do not HW-GRO coalesce small frames
  net: openvswitch: fix nf_connlabels leak in ovs_ct_init
  net: add missing ref_tracker_dir_exit() to alloc_netdev_mqs()
  net: openvswitch: fix flow mask use-after-free on flow deletion
  sctp: stop processing a packet once its association is deleted
  dpll: zl3073x: add PTP clock support
  dpll: zl3073x: add channel ToD, phase step and TIE operations
  dpll: zl3073x: scale poll interval proportionally to timeout
  ptp: vmclock: prevent read-only mappings from becoming writable
  ipv4: reject undersized MTUs in ip_do_fragment()
  bonding: initialize err for empty target lists
  net: dsa: initial support for MT7628 embedded switch
  net: dsa: initial MT7628 tagging driver
  net: phy: mediatek: add phy driver for MT7628 built-in Fast Ethernet PHYs
  dt-bindings: net: dsa: add MT7628 ESW
  net: pse-pd: realtek-pse-mcu: add UART transport
  net: pse-pd: realtek-pse-mcu: add I2C transport
  net: pse-pd: add Realtek PSE MCU core
  dt-bindings: net: pse-pd: add bindings for Realtek PSE MCU
  vsock: use sock_error() to consume sk_err after a failed connect
  ...
 2026-08-20 08:16:04 -07:00
Linus Torvalds
85e0d1de36 iommufd v7.3 merge window pull request 
Small update this cycle:
 
 - Formal API for "no iommu" mode in VFIO. iommufd now works in this
   environment and provides page pinning and phyiscal address services to
   userspace. This avoids nasty fragile tricks with mprotect and pgmap
 
 - Fix sykzaller crash racing change_process with map_pages
 
 - Various skyzkaller/AI fixes for the selftests
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Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd

Pull iommufd updates from Jason Gunthorpe:
 "One small feature this cycle, the noiommu mode is useful in
  single-purpose VMs running something like DPDK. It avoids the double
  translation overhead and it seems to be commonly used with some hacks.

  Summary:

   - Formal API for "no iommu" mode in VFIO. iommufd now works in this
     environment and provides page pinning and phyiscal address services
     to userspace. This avoids nasty fragile tricks with mprotect and
     pgmap

   - Fix sykzaller crash racing change_process with map_pages

   - Various skyzkaller/AI fixes for the selftests"

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
  iommufd: Fix UAF in selftest IOPF reporting
  iommu/iommufd: Fix NULL pointer deref in iommufd_ioas_change_process when racing with iopt_map_file_pages
  Documentation: Update VFIO NOIOMMU mode
  vfio: Enable cdev noiommu mode under iommufd
  iommufd: Add an ioctl to query PA from IOVA for noiommu mode
  iommufd: Allow binding to a noiommu device
  iommufd: Move igroup allocation to a function
  iommufd: Support a HWPT without an iommu driver for noiommu
  iommufd: Simplify iommufd_device_remove_vdev()
  iommufd: Fix grammar and spelling in comments
  iommu: Fix dev_iommu memory leak when device_add fails in iommu_mock_device_add
  iommufd/selftest: Fix dmabuf leak in iommufd_test_dmabuf_get()
  iommufd/selftest: Avoid selftest dirty bitmap size wrap
 2026-08-19 12:42:58 -07:00
Linus Torvalds
59e6295fac Driver core changes for 7.3-rc1 
- container_of:
 
   - Apply typeof_member(), remove the local __mptr variable to eliminate
     variable shadowing warnings on nested container_of() calls, and remove
     unnecessary parentheses.
 
 - core:
 
   - Add driver name to probe debug print for initcall_debug.
 
   - Avoid repeatedly printing the same 'Fixed dependency cycle' log.
 
   - Unwind device_add() on attribute creation failure in
     attribute_container_add_class_device().
 
   - Remove statistics group if encryption group creation fails in
     transport_add_class_device().
 
 - debugfs:
 
   - Fix lockdown check for mmap_prepare().
 
   - Warn if file creation failed due to uninitialized debugfs.
 
 - device property:
 
   - Implement fw_devlink support for software nodes by adding
     software_node_add_links(), which creates fwnode links from DEV_PROP_REF
     properties to enable automatic probe ordering. Add kunit-managed fwnode
     helpers and test coverage.
 
   - Fix infinite loop in fwnode_for_each_child_node() when the secondary fwnode
     has more than one child. Add test cases.
 
   - Fix out-of-bounds access in software_node_get_reference_args() when called
     with index -1 (UINT_MAX).
 
   - Refactor to use RAII approach with __free().
 
   - Add Bartosz Golaszewski as software node reviewer.
 
 - firmware loader:
 
   - Fix race where a sysfs fallback request can complete before being queued as
     pending, leading to a use-after-free on the next fallback request.
 
   - Reject 0-size built-in firmware and fail the build on empty firmware files
     in CONFIG_EXTRA_FIRMWARE.
 
 - kobject:
 
   - Provide __KOBJ_ATTR() and __KOBJ_ATTR_RO/WO() initialization macros and
     allow the constification of kobject attributes, enabling them to reside in
     read-only memory.
 
 - platform:
 
   - Provide platform_device_set_of_node(), platform_device_set_fwnode(), and
     platform_device_set_of_node_from_dev() helpers that encapsulate firmware
     node reference counting for dynamically allocated platform devices. Convert
     all in-tree users that manually assigned dev.of_node or dev.fwnode, fixing a
     pre-existing refcount bug in powermac.  Switch to counting references of all
     firmware node types, not only OF nodes.
 
   - Unify the release path for dynamically allocated platform devices by
     removing platform_device_release_full(). Amend the fwnode setter API
     contract to warn if a primary software node is overwritten. Add KUnit tests
     for correct software node removal on device unregistration.
 
 - Rust:
 
   - Auxiliary:
 
     - Add registration_data_with() closure-based API for invariant ForLt types.
 
   - Debugfs:
 
     - Migrate BinaryWriter and BinaryReaderMut trait requirements from
       kernel::transmute traits to zerocopy traits.
 
   - Device:
 
     - Add BoundInternal device context and InternalBoundContext trait for bus
       abstractions that need internal access to a bound device.
 
     - Make the lifetime on Core and CoreInternal invariant to prevent coercion
       to shorter lifetimes.
 
   - Devres:
 
     - Fix race between concurrent revokers where the losing revoker could return
       before the winning revoker finished dropping the inner data, causing
       use-after-free.
 
     - Ensure revocation is complete before the device finishes unbinding by
       making the synchronization bidirectional.
 
     - Add DevresLt<F: ForLt>, a wrapper around Devres that shortens 'static back
       to the caller's borrow scope. Implement ForLt and CovariantForLt for Bar,
       IoMem, and ExclusiveIoMem.
 
   - Driver:
 
     - Switch from index-based to pointer-based device ID info lookup, storing
       static references in driver_data. Centralize device ID handling in
       device_id.rs, removing the open-coded ACPI/OF matching logic and duplicate
       ID table from driver.rs.
 
   - I/O:
 
     - Make I/O regions typed (with a dynamically-sized Region type for the
       existing untyped case), create view types representing subregions of a
       mapped I/O region, and add io_project!() for safely creating subviews.
 
     - Split Io into a base trait (IoBase) and an extension trait (Io) with a
       blanket implementation, preventing implementers from overriding provided
       methods that unsafe code relies on.
 
     - Add a SysMem backend for shared system memory with volatile access, and
       make Coherent implement Io via an I/O view type.  Add IoSysMap as sum type
       of Mmio and SysMem. Add copying methods (memcpy_{from,to}io()) and
       read_val()/write_val() for typed access.
 
     - Replace dma_read!()/dma_write!() with io_read!()/io_write!() for
       primitives and copying methods for aggregates; drop the old macros.
       Convert nova-core to use I/O projection.
 
     - Fix internal shortcut rule dispatch in the register!() macro, remove
       unused rule arguments, and use path fragments for alias destinations.
 
   - IRQ:
 
     - Make irq::Registration compatible with lifetime-bound drivers by
       removing the 'static bound on Handler/ThreadedHandler and
       replacing Devres<RegistrationInner> with direct
       request_irq()/free_irq() calls.  Handlers can now directly own
       lifetime-bound device resources.
 
   - PCI:
 
     - Convert IrqVectorRegistration to a lifetime-annotated owning type,
       giving drivers explicit control over the allocation lifetime.
       IrqVector embeds a resolved IrqRequest, making the conversion
       infallible. Remove the redundant
       request_irq()/request_threaded_irq() wrappers from pci::Device.
 
     - Add pci_irq_type() C helper and expose it via irq_type() on
       IrqVectorRegistration and IrqVector, returning PCI_IRQ_MSIX, PCI_IRQ_MSI,
       or PCI_IRQ_INTX.
 
     - Mark pci::Device refcount methods inline.
 
   - Serdev:
 
     - Add Rust abstractions for the serial device bus, including serdev::Driver
       trait, serdev::Device wrapping struct serdev_device, and serdev::Adapter
       implementing RegistrationOps.  Includes a sample driver. Markus Probst
       takes over as serdev maintainer for both C and Rust code.
 
   - Misc:
 
     - Split ForLt into a base trait (providing the Of<'a> GAT) and an unsafe
       CovariantForLt subtrait guaranteeing covariance, enabling invariant types
       (e.g. those containing Mutex<&'bound T>) to participate in the ForLt
       abstraction.
 
     - Fix Coherent read past EOF returning -ERANGE instead of zero.
 
     - Fix firmware example UB by avoiding null-pointer ARef.
 
 - misc:
 
   - Avoid iattr allocation in kernfs listxattr by using kernfs_iattrs_noalloc().
   - Unregister SoC bus on early device registration failure.
   - Remove unused DMA_FENCE_TRACE Kconfig symbol.
   - Fix /sys/module path in comment.
   - Refactor ISA bus init to remove nested blocks.
   - Remove redundant nodemask clears in numa_init().
   - Add kernel-doc for fwnode_operations and sys_soc.h, mark internal property
     data as private for kernel-doc, and add property.h/fwnode.h to driver-api
     infrastructure docs.
   - Add MAINTAINERS entry for sys_soc.h.
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Merge tag 'driver-core-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core

Pull driver core updates from Danilo Krummrich:
 "container_of:

   - Apply typeof_member(), remove the local __mptr variable to
     eliminate variable shadowing warnings on nested container_of()
     calls, and remove unnecessary parentheses

  core:

   - Add driver name to probe debug print for initcall_debug

   - Avoid repeatedly printing the same 'Fixed dependency cycle' log

   - Unwind device_add() on attribute creation failure in
     attribute_container_add_class_device()

   - Remove statistics group if encryption group creation fails in
     transport_add_class_device()

  debugfs:

   - Fix lockdown check for mmap_prepare()

   - Warn if file creation failed due to uninitialized debugfs

  device property:

   - Implement fw_devlink support for software nodes by adding
     software_node_add_links(), which creates fwnode links from
     DEV_PROP_REF properties to enable automatic probe ordering. Add
     kunit-managed fwnode helpers and test coverage

   - Fix infinite loop in fwnode_for_each_child_node() when the
     secondary fwnode has more than one child. Add test cases

   - Fix out-of-bounds access in software_node_get_reference_args() when
     called with index -1 (UINT_MAX)

   - Refactor to use RAII approach with __free()

   - Add Bartosz Golaszewski as software node reviewer

  firmware loader:

   - Fix race where a sysfs fallback request can complete before being
     queued as pending, leading to a use-after-free on the next fallback
     request

   - Reject 0-size built-in firmware and fail the build on empty
     firmware files in CONFIG_EXTRA_FIRMWARE

  kobject:

   - Provide __KOBJ_ATTR() and __KOBJ_ATTR_RO/WO() initialization macros
     and allow the constification of kobject attributes, enabling them
     to reside in read-only memory

  platform:

   - Provide platform_device_set_of_node(), platform_device_set_fwnode(),
     and platform_device_set_of_node_from_dev() helpers that encapsulate
     firmware node reference counting for dynamically allocated platform
     devices

     Convert all in-tree users that manually assigned dev.of_node or
     dev.fwnode, fixing a pre-existing refcount bug in powermac. Switch
     to counting references of all firmware node types, not only OF
     nodes

   - Unify the release path for dynamically allocated platform devices
     by removing platform_device_release_full(). Amend the fwnode setter
     API contract to warn if a primary software node is overwritten. Add
     KUnit tests for correct software node removal on device
     unregistration

  Rust:

   - Auxiliary:
       - Add registration_data_with() closure-based API for invariant
         ForLt types

   - Debugfs:
       - Migrate BinaryWriter and BinaryReaderMut trait requirements
         from kernel::transmute traits to zerocopy traits

   - Device:
       - Add BoundInternal device context and InternalBoundContext trait
         for bus abstractions that need internal access to a bound
         device.
       - Make the lifetime on Core and CoreInternal invariant to prevent
         coercion to shorter lifetimes

   - Devres:
       - Fix race between concurrent revokers where the losing revoker
         could return before the winning revoker finished dropping the
         inner data, causing use-after-free.
       - Ensure revocation is complete before the device finishes
         unbinding by making the synchronization bidirectional.
       - Add DevresLt<F: ForLt>, a wrapper around Devres that shortens
         'static back to the caller's borrow scope. Implement ForLt and
         CovariantForLt for Bar, IoMem, and ExclusiveIoMem

   - Driver:
       - Switch from index-based to pointer-based device ID info lookup,
         storing static references in driver_data. Centralize device ID
         handling in device_id.rs, removing the open-coded ACPI/OF
         matching logic and duplicate ID table from driver.rs

   - I/O:
       - Make I/O regions typed (with a dynamically-sized Region type
         for the existing untyped case), create view types representing
         subregions of a mapped I/O region, and add io_project!() for
         safely creating subviews.
       - Split Io into a base trait (IoBase) and an extension trait (Io)
         with a blanket implementation, preventing implementers from
         overriding provided methods that unsafe code relies on.
       - Add a SysMem backend for shared system memory with volatile
         access, and make Coherent implement Io via an I/O view type.
         Add IoSysMap as sum type of Mmio and SysMem. Add copying
         methods (memcpy_{from,to}io()) and read_val()/write_val() for
         typed access.
       - Replace dma_read!()/dma_write!() with io_read!()/io_write!()
         for primitives and copying methods for aggregates; drop the old
         macros. Convert nova-core to use I/O projection.
       - Fix internal shortcut rule dispatch in the register!() macro,
         remove unused rule arguments, and use path fragments for alias
         destinations

   - IRQ:
       - Make irq::Registration compatible with lifetime-bound drivers
         by removing the 'static bound on Handler/ThreadedHandler and
         replacing Devres<RegistrationInner> with direct
         request_irq()/free_irq() calls. Handlers can now directly own
         lifetime-bound device resources

   - PCI:
       - Convert IrqVectorRegistration to a lifetime-annotated owning
         type, giving drivers explicit control over the allocation
         lifetime. IrqVector embeds a resolved IrqRequest, making the
         conversion infallible. Remove the redundant
         request_irq()/request_threaded_irq() wrappers from pci::Device.
       - Add pci_irq_type() C helper and expose it via irq_type() on
         IrqVectorRegistration and IrqVector, returning PCI_IRQ_MSIX,
         PCI_IRQ_MSI, or PCI_IRQ_INTX.
       - Mark pci::Device refcount methods inline

   - Serdev:
       - Add Rust abstractions for the serial device bus, including
         serdev::Driver trait, serdev::Device wrapping struct
         serdev_device, and serdev::Adapter implementing
         RegistrationOps. Includes a sample driver. Markus Probst takes
         over as serdev maintainer for both C and Rust code

   - Misc:
       - Split ForLt into a base trait (providing the Of<'a> GAT) and an
         unsafe CovariantForLt subtrait guaranteeing covariance,
         enabling invariant types (e.g. those containing Mutex<&'bound T>)
         to participate in the ForLt abstraction.
       - Fix Coherent read past EOF returning -ERANGE instead of zero.
       - Fix firmware example UB by avoiding null-pointer ARef

  misc:
   - Avoid iattr allocation in kernfs listxattr by using
     kernfs_iattrs_noalloc().
   - Unregister SoC bus on early device registration failure.
   - Remove unused DMA_FENCE_TRACE Kconfig symbol.
   - Fix /sys/module path in comment.
   - Refactor ISA bus init to remove nested blocks.
   - Remove redundant nodemask clears in numa_init().
   - Add kernel-doc for fwnode_operations and sys_soc.h, mark
     internal property data as private for kernel-doc, and add
     property.h/fwnode.h to driver-api infrastructure docs.
   - Add MAINTAINERS entry for sys_soc.h"

* tag 'driver-core-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (129 commits)
  rust: pci: expose the allocated interrupt type
  PCI: Add pci_irq_type() to query the allocated interrupt type
  rust: pci: remove request_irq() and request_threaded_irq() from Device
  rust: pci: resolve IRQ in index() and embed IrqRequest in IrqVector
  rust: pci: convert IrqVectorRegistration to a lifetime-managed owning type
  kernfs: avoid iattr allocation in listxattr
  rust: serdev: use ThisModule::as_ptr() instead of field access
  ACPI/IORT: use platform_device_set_fwnode()
  ACPI/APMT: use platform_device_set_fwnode()
  firmware_loader: do not queue completed sysfs fallback requests
  rust: pci: Mark Device refcount methods inline
  rust: irq: make Registration compatible with lifetime-bound drivers
  rust: net/phy: remove expansion from doc
  rust: dma: return zero for Coherent reads past EOF
  rust: io: register: use path fragment for alias destination
  rust: io: register: remove unused rule arguments
  rust: io: register: dispatch shortcut rules internally
  MAINTAINERS: add sys_soc.h to DRIVER CORE
  rust: debugfs: remove unsafe blocks from traits impl for Vec
  rust: debugfs: migrate debugfs traits requirements to zerocopy
  ...
 2026-08-19 10:42:18 -07:00
Linus Torvalds
f4cdf7ca9a [GIT PULL for v7.3] media updates 
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Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - v4l2-core: added ISP statistics support and per-block validation

 - v4l2-core: Allow unknown HDR10 white point and luminance

 - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor

 - New codec: Milos: VPU v2.0 codec support

 - isp driver: gained support for Dreamchip RPPX1 ISP framework

 - vsp1 driver: gained support for RZ/T2H and RZ/N2H

 - Novalake driver: gained CVS support for new NVL hardware

 - dvb-core: fix feed leak on failed DMX_ADD_PID

 - several driver fixes, cleanups and minor improvements

* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
  media: ipu-bridge: check all DMI entries when overriding sensor rotation
  media: v4l2-async: avoid deleting unlinked ASC entry on link error
  media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
  media: intel/ipu6: fix async notifier cleanup leak on parse error
  media: staging/ipu7: fix async notifier UAF on probe error path
  media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
  media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
  media: rcar-isp: Fix VSPX reference leaks
  media: rcar-isp: Release ISPCORE resources
  media: i2c: imx415: Release runtime PM reference on VBLANK error
  media: i2c: imx415: Return test pattern write errors
  media: renesas: vsp1: Declare index variables in for loop statement
  media: renesas: vsp1: Make reset control optional to support platforms without a reset line
  media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
  media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
  media: nxp: imx8-isi: Add additional 32-bit RGB format support
  media: nxp: imx8-isi: Add 16-bit raw Bayer format support
  media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
  media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
  media: nxp: imx8-isi: Correct color map between V4L2 and ISI
  ...
 2026-08-19 10:09:22 -07:00
Stephen Boyd
df822f2e36
Merge tag 'clk-misc-round-two-for-v7.3' of ssh://github.com/masneyb/linux into clk-pile 
Pull clk patches from Brian Masney:

 - New clock controller drivers for the Cix Sky1 audio subsystem (AUDSS),
   UltraRISC DP1000, and MediaTek MT8173 MFG_TOP, along with their devicetree
   bindings. Si549 support was added to the existing si544 driver.
 - New clock and reset support for the Aspeed AST2700 PECI controller and Airoha
   EN7523 PCIe PERSTOUT reset lines.
 - The clk core gains devm_clk_bulk_get_enable() as the mandatory counterpart to
   the existing optional variant, and exports
   devm_clk_hw_register_composite_pdata() for modular drivers.
 - Tegra gets a proper EMC clock implementation for Tegra114, 48MHz pll_p_out1
   support needed for UEFI on Surface2, and the Xilinx clocking-wizard gains PLL
   charge pump/lock parameter programming during dynamic reconfiguration.
 - Bug fixes for a NULL pointer dereference from uninitialized clk_init_data in
   the eswin driver, an IO remap leak in the MediaTek pllfh error path, inverted
   gate control for MT8135 devapc_ck, a missing OF node put in tegra124-emc on
   registration failure, a prepare reference leak in the palmas driver,
   unregistered PLLs on MT6735 probe failure, a missing kasprintf NULL check in
   pmc_atom, PCIe warm boot instability in the Airoha EN7523 driver, and a
   clocking-wizard clock difference detection bug.
 - Various cleanups across tegra, st, and mvebu providers to stop misusing the
   consumer clock API, along with other minor fixes and improvements.

Signed-off-by: Brian Masney <bmasney@redhat.com>

* tag 'clk-misc-round-two-for-v7.3' of ssh://github.com/masneyb/linux: (45 commits)
  clk: tegra: set up proper EMC clock implementation for Tegra114
  clk: clocking-wizard: remove 20kHz restriction
  clk: clocking-wizard: optimize clock search
  clk: clocking-wizard: fix clock difference detection
  clk: mediatek: mt8135: Fix inverted gate control for devapc_ck
  clk: clocking-wizard: Program PLL CP/RES and lock parameters on reconfig
  clk: tegra: support 48MHz clock for pll_p_out1
  clk: aspeed: add AST2700 PECI clock
  dt-bindings: clock: ast2700: add PECI clock
  clk: mediatek: Add mt8173-mfgtop driver
  dt-bindings: clock: mediatek: Add mt8173 mfgtop
  clk: tegra: clean-up simple provider misuse of the consumer API
  clk: st: clean-up simple provider misuse of the consumer API
  clk: mvebu: clean-up simple provider misuse of the consumer API
  clk: remove conditional return with no effect
  clk: Add devm_clk_bulk_get_enable()
  clk: en7523: add support for dedicated PCIe PERSTOUT reset
  dt-bindings: clock: airoha: Add additional reset for PCIe PERSTOUT
  arm64: dts: cix: sky1: add audss cru
  reset: cix: add sky1 audss auxiliary reset driver
  ...
 2026-08-17 09:28:08 -07:00
Ivan Vecera
84e85c325e dpll: use pin owner's dpll ref for pin-level attribute setting 
Pin-level attributes (frequency, phase adjust, embedded sync, reference
sync) are properties of the pin itself, not of a particular DPLL device.
The get callbacks already use only the pin owner's DPLL reference
(via dpll_pin_own_dpll_ref_first()), but the set callbacks iterate over
all registered DPLL references and invoke the set operation on each one.

This is redundant because a pin is a single physical entity - setting
its frequency or phase adjust once through the owner's ops is sufficient.
Calling set on every registered DPLL just results in duplicate HW writes
for drivers that share a pin across multiple DPLL devices (e.g. ice
registers each input pin with both the EEC and PPS DPLL, zl3073x
registers input pins with every DPLL channel).

Simplify dpll_pin_freq_set(), dpll_pin_esync_set(),
dpll_pin_ref_sync_state_set() and dpll_pin_phase_adj_set() to call the
set callback only through the owner's DPLL reference, matching the
existing get-side behavior. This removes the xa_for_each iteration
loops, the now-unnecessary rollback logic, and several local variables.

The -EOPNOTSUPP validation loop, which checked ops support across all
owner-matching references, is replaced with a direct check on the
single owner reference returned by dpll_pin_own_dpll_ref_first().

The documentation in dpll.rst is updated to reflect that pin-level
attributes are set through the pin owner's dpll reference only.

No existing driver is affected:
  - ptp_ocp and mlx5 register each pin with a single DPLL.
  - ice registers input pins with two DPLLs (EEC and PPS) using
    identical ops and pin_priv; the set callbacks address the HW by
    pin index, not by DPLL, so the second call was a no-op.
  - zl3073x registers input pins with every DPLL channel; the set
    callbacks address HW by pin/ref ID regardless of DPLL. The
    ref_sync_set callback was the only one with per-channel behavior,
    addressed by the preceding patch.

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://patch.msgid.link/20260807095926.386923-3-ivecera@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 2026-08-11 11:30:07 +02:00
Lukasz Tymoszczuk
adda90179b docs: ipmi: fix word order in create-user description 
Correct "allows to you" to "allows you to".

Signed-off-by: Lukasz Tymoszczuk <lukastymo@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260801111804.3593320-1-lukastymo@gmail.com>
 2026-08-03 12:06:28 -06:00
Randy Dunlap
f6e6e96d16 docs/driver-api: infrastructure: add property.h and fwnode.h 
Add more driver core header files to infrastructure.rst for
completeness.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20260726211200.2643484-1-rdunlap@infradead.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
 2026-07-30 16:23:07 +02:00
Matthew Wilcox (Oracle)
b55cc244d0 percpu_ref: fix documentation of maximum value 
Tejun changd percpu_ref to use long instead of int back in 2014 but missed
updating this bit of the documentation.  Also add the documentation to the
htmldocs.

Link: https://lore.kernel.org/20241211204017.184512-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2026-07-28 21:11:55 -07:00
Suraj Gupta
b698927acc clk: Add devm_clk_bulk_get_enable() 
devm_clk_bulk_get_optional_enable() gets, prepares and enables a set of
clocks with device-managed cleanup, but treats every clock as optional:
a missing clock is silently returned as NULL instead of failing.

Consumers that need a fixed set of mandatory clocks enabled for the
lifetime of the device currently have to open-code devm_clk_bulk_get()
followed by clk_bulk_prepare_enable(), which loses the managed disable on
unbind, or fall back to per-clock devm_clk_get_enabled() calls.

Add devm_clk_bulk_get_enable() as the non-optional counterpart. The
underlying __devm_clk_bulk_get_enable() helper already supports the
required (optional = false) path, so only export a thin wrapper for it.

Signed-off-by: Suraj Gupta <suraj.gupta2@amd.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Brian Masney <bmasney@redhat.com>
 2026-07-28 11:25:30 -04:00
Alexander Usyskin
65f0ecb9ec issei: initial driver skeleton 
The ISSEI (Intel Silicon Security Engine Interface)
subsystem provides a communication channel between the host and the
Silicon Security Engine.

Prepare basic driver functions and character device
for user-space communication.
Add DMA access routines for ISSEI HECI devices.
Add of DMA-related structures and implementation of routines for
setting up DMA, as well as reading and writing DMA buffers.

Reviewed-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Co-developed-by: Vitaly Lubart <lubvital@gmail.com>
Signed-off-by: Vitaly Lubart <lubvital@gmail.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Link: https://patch.msgid.link/20260513-issei-for-upstream-v1-1-f590038678f9@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2026-07-17 15:48:11 +02:00
Utsav Shankar
57a6797c15 Documentation: usb: remove dead link to external USB programming guide 
The "Programming Guide for Linux USB Device Drivers" was last hosted
at lmu.web.psi.ch and is no longer reachable. The original source
(TUM, cs.tum.edu) is also defunct. Remove the dead reference rather
than link to a third-party archive of a 20+ year old, outdated guide.

Signed-off-by: Utsav Shankar <utsaveshan0206@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260713150544.20962-1-utsaveshan0206@gmail.com>
 2026-07-16 16:23:06 -06:00
Jacob Pan
12f16a37f2 Documentation: Update VFIO NOIOMMU mode 
Document the NOIOMMU mode with newly added cdev support under iommufd.

Link: https://patch.msgid.link/r/7d4a050505317a29f7f2c32d024333b7b5c7d4fd.1783360051.git.jacob.pan@linux.microsoft.com
Cc: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jacob Pan <jacob.pan@linux.microsoft.com>
Fixes: 2c6cf6ab1564 ("iommufd: Allow binding to a noiommu device")
Reviewed-by: Alex Williamson <alex@shazbot.org>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2026-07-14 12:05:01 -03:00
Yuhong Cheng
81d79de72a docs: driver-api: pin-control: fix spelling of below 
Fix the spelling of 'bellow' to 'below' in the PM API section.

Signed-off-by: Yuhong Cheng <ceohunk@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
 2026-07-10 20:45:29 +02:00
Ricardo Ribalda
86de1c7629 media: Documentation: Add myself as maintainer for media-ci 
Add myself as maintainer of media-ci.

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
 2026-07-10 09:53:50 +02:00
Ivan Vecera
b1d0c41208 dpll: add STATE_CONNECTED_OVERRIDE pin capability 
Add DPLL_PIN_CAPABILITIES_STATE_CONNECTED_OVERRIDE capability flag
that indicates a pin can be set to connected regardless of the
current DPLL device mode, overriding the active input selection.
This is useful for automatic-only DPLL devices where mode cannot
be switched to manual, allowing userspace to directly connect
such pin from automatic mode.

The capability requires STATE_CAN_CHANGE to be set as well;
dpll_pin_register() warns if a driver violates this.

Document the new capability in the Pin selection section of
Documentation/driver-api/dpll.rst.

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Link: https://patch.msgid.link/20260630125536.720717-2-ivecera@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 2026-07-06 14:45:04 +02:00
Rafael J. Wysocki
541b293ab1 ACPI: bus: Eliminate struct acpi_driver 
Now that struct acpi_driver has no more users, eliminate it along with
all of the code related to it.

Also remove the file added by commit b8c8a8ea18 ("ACPI: Documentation:
driver-api: Disapprove of using ACPI drivers") because it will not be
necessary any more after eliminating struct acpi_driver from the code.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/5132944.31r3eYUQgx@rafael.j.wysocki
 2026-07-06 13:31:50 +02:00
Frank Li
796bdb33e8 dmaengine: Add API to combine configuration and preparation (sg and single) 
Previously, configuration and preparation required two separate calls. This
works well when configuration is done only once during initialization.

However, in cases where the burst length or source/destination address must
be adjusted for each transfer, calling two functions is verbose and
requires additional locking to ensure both steps complete atomically.

Add a new API dmaengine_prep_config_single() and dmaengine_prep_config_sg()
and callback device_prep_config_sg() that combines configuration and
preparation into a single operation. If the configuration argument is
passed as NULL, fall back to the existing implementation.

Tested-by: Niklas Cassel <cassel@kernel.org>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260521-dma_prep_config-v7-1-1f73f4899883@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2026-06-30 16:42:30 +05:30
Brian Masney
378ca82af0 docs: clk: include some identifiers to keep documentation up to date 
The clk documentation currently has a separate list of some members of
struct clk_core and struct clk_ops. Now that all of these structures
have proper kernel docs, let's go ahead and just include them here via
the identifiers statement in kerneldoc.

While changes are being made here, let's also include the clk flags.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Brian Masney <bmasney@redhat.com>
 2026-06-29 17:51:43 -04:00
Zenghui Yu
a667f1eb71 cxl: docs/linux/dax-driver - fix typos 
Fix two obvious typos in the "kmem conversion" section.

Signed-off-by: Zenghui Yu <zenghui.yu@linux.dev>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20260614161458.88942-1-zenghui.yu@linux.dev
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
 2026-06-29 08:40:06 -07:00
Linus Torvalds
da07894d1d A handful of late-arriving docs fixes, along with one document update 
that fell through the cracks before.
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Merge tag 'docs-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux

Pull more documentation updates from Jonathan Corbet:
 "A handful of late-arriving docs fixes, along with one document update
  that fell through the cracks before"

* tag 'docs-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux:
  docs: tools: Fix typo 'ackward' to 'awkward' in unittest.rst
  kdoc: xforms: ignore special static/inline macros
  kdoc: xforms_lists: handle DECLARE_PER_CPU() in kernel-doc
  MAINTAINERS: Fix regex for kdoc
  docs: kgdb: Fix path of driver options
  Documentation: tracing: fix typo in events documentation
  Docs/driver-api/uio-howto: document mmap_prepare callback
  docs/mm: clarify that we are not looking for LLM generated content
  kernel-doc: xforms: support __SYSFS_FUNCTION_ALTERNATIVE()
 2026-06-25 09:09:38 -07:00
Linus Torvalds
504c806528 ipmi: lots of little tweaks 
Nothing huge, the biggest issue was a possible refcount underflow that
 could cause a memory leak in some situations.  Otherwise, fixing
 formatting and style things and some docs typos.
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Merge tag 'for-linus-7.2-1' of https://github.com/cminyard/linux-ipmi

Pull ipmi updates from Corey Minyard:
 "Lots of little tweaks.

  Nothing huge, the biggest issue was a possible refcount underflow that
  could cause a memory leak in some situations. Otherwise, fixing
  formatting and style things and some docs typos"

* tag 'for-linus-7.2-1' of https://github.com/cminyard/linux-ipmi:
  docs: ipmi: Fix path of the "hotmod" module parameter
  ipmi: Drop unused assignment of platform_device_id driver data
  ipmi: si: Use platform_get_irq_optional() to retrieve interrupt
  ipmi: fix refcount leak in i_ipmi_request()
  ipmi:ssif: Drop unused assignment of platform_device_id driver data
  ipmi: Fix user refcount underflow in event delivery
  ipmi: Use named initializers for struct i2c_device_id
  ipmi: Use LIST_HEAD() to initialize on stack list head
  ipmi:kcs: Reduce the number of retries
 2026-06-25 09:00:53 -07:00
Doehyun Baek
de5c46373e Docs/driver-api/uio-howto: document mmap_prepare callback 
The UIO howto still documents an mmap callback in struct uio_info.
That field was replaced by mmap_prepare, which takes a struct
vm_area_desc.

A UIO driver following the current howto no longer builds because
struct uio_info has no mmap member. Update the documented callback
signature and matching text to match the current API.

Fixes: 933f05f58a ("uio: replace deprecated mmap hook with mmap_prepare in uio_info")
Signed-off-by: Doehyun Baek <doehyunbaek@gmail.com>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260622181821.1195257-1-doehyunbaek@gmail.com>
 2026-06-23 14:33:38 -06:00
Linus Torvalds
0000d9ccbc Char/Misc/IIO/FPGA/GPIB/etc driver updates for 7.2-rc1 
Here is the big set of char, misc, iio, fpga, and other small driver
 subsystems changes for 7.2-rc1.
 
 Lots of little stuff in here, the majority being of course the IIO
 driver updates, as a list they are:
   - IIO driver updates and additions
   - GPIB driver bugfixes and cleanups
   - Android binder driver updates (rust and C version)
   - counter driver updates
   - MHI driver updates
   - mei driver updates
   - w1 driver updates
   - interconnect driver updates
   - Comedi driver fixes and updates
   - some obsolete char drivers removed (applicom and dtlk)
   - hwtracing driver updates
   - other tiny driver updates
 
 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 'char-misc-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull misc driver updates from Greg KH:
 "Here is the big set of char, misc, iio, fpga, and other small driver
  subsystems changes for 7.2-rc1.

  Lots of little stuff in here, the majority being of course the IIO
  driver updates, as a list they are:

   - IIO driver updates and additions

   - GPIB driver bugfixes and cleanups

   - Android binder driver updates (rust and C version)

   - counter driver updates

   - MHI driver updates

   - mei driver updates

   - w1 driver updates

   - interconnect driver updates

   - Comedi driver fixes and updates

   - some obsolete char drivers removed (applicom and dtlk)

   - hwtracing driver updates

   - other tiny driver updates

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

* tag 'char-misc-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (406 commits)
  w1: ds2482: Use named initializers for arrays of i2c_device_data
  firmware: stratix10-svc: Add support to query Arm Trusted Firmware (ATF) version
  firmware: stratix10-rsu: avoid blocking reboot_image sysfs when busy
  coresight: ultrasoc-smb: Fix OOB write in smb_sync_perf_buffer()
  iio: adc: nxp-sar-adc: harden buffer ISR against per-channel read failure
  iio: chemical: scd30: Replace manual locking with RAII locking
  iio: light: tsl2591: remove unneeded tsl2591_compatible_als_persist_cycle()
  iio: dac: ad5686: create bus ops struct
  iio: dac: ad5686: cleanup doc header of local structs
  iio: dac: ad5686: add control_sync() for single-channel devices
  iio: dac: ad5686: add helpers to handle powerdown masks
  iio: dac: ad5686: add of_match table to the spi driver
  iio: dac: ad5686: drop enum id
  iio: dac: ad5686: remove redundant register definition
  iio: dac: ad5686: refactor include headers
  iio: adc: ad4080: fix AD4880 chip ID
  iio: light: veml3328: add support for new device
  dt-bindings: iio: light: veml6030: add veml3328
  fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header()
  fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region()
  ...
 2026-06-22 12:20:21 -07:00
Linus Torvalds
8a500fd093 TTY / Serial driver update for 7.2-rc1 
Here is the big set of TTY and Serial driver updates for 7.2-rc1.
 Overall we end up removing more code than added, due to an obsolete
 synclink_gt driver being removed from the tree, always a nice thing to
 see happen.
 
 Other than that driver removal, major things included in here are:
   - max310x serial driver updates and fixes
   - 8250 driver updates and rework in places to make it more "modern"
   - dts file updates
   - serial driver core tweaks and updates
   - vt code cleanups
   - vc_screen crash fixes
   - other minor driver updates and cleanups
 
 All of these have been in linux-next for well over a week with no
 reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty / serial driver updates from Greg KH:
 "Here is the big set of TTY and Serial driver updates for 7.2-rc1.

  Overall we end up removing more code than added, due to an obsolete
  synclink_gt driver being removed from the tree, always a nice thing to
  see happen.

  Other than that driver removal, major things included in here are:

   - max310x serial driver updates and fixes

   - 8250 driver updates and rework in places to make it more "modern"

   - dts file updates

   - serial driver core tweaks and updates

   - vt code cleanups

   - vc_screen crash fixes

   - other minor driver updates and cleanups

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

* tag 'tty-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (49 commits)
  serial: 8250_pci: Don't specify conflicting values to pci_device_id members
  vc_screen: fix null-ptr-deref in vcs_notifier() during concurrent vcs_write
  serial: qcom_geni: Fix RX DMA stall when SE_DMA_RX_LEN_IN is zero
  vt: merge ucs_is_zero_width()/ucs_is_double_width() into ucs_get_width()
  serial: 8250: fix possible ISR soft lockup
  dt-bindings: serial: rs485: remove deprecated .txt binding stub
  serial: qcom-geni: trace: Add tracepoint support for Qualcomm GENI serial
  tty: serial: Use named initializers for arrays of i2c_device_data
  serial: 8250_dw: remove clock-notifier infrastructure
  serial: 8250_dw: unregister 8250 port if clk_notifier_register() fails
  amba/serial: amba-pl011: Bring back zx29 UART support
  serial: 8250: Add support for console flow control
  serial: 8250: Check LSR timeout on console flow control
  serial: 8250: Set cons_flow on port registration
  tty: serial: 8250: protect against NULL uart->port.dev in register
  arm64: dts: add support for A9 based Amlogic BY401
  dt-bindings: arm: amlogic: add A311Y3 support
  serial: max310x: fix compile errors if CONFIG_SPI_MASTER is disabled
  serial: qcom-geni: Avoid probing debug console UART without console support
  serial: max310x: add comments for PLL limits
  ...
 2026-06-22 11:51:49 -07:00
Linus Torvalds
09e3b4a76b NAND changes: 
- Extend SPI NAND continuous read to Winbond devices, which requires
   numerous changes in the spi-{mem,nand} layers such as the need for a
   secondary read operation template.
 
 - Continuous reads in general have also been enhanced/fixed for avoiding
   potential issues at probe time and at block boundaries.
 
 SPI NOR changes:
 
 - Big set of cleanups and improvements to the locking support. This
   series contains some cleanups and bug fixes for code and documentation
   around write protection. Then support is added for complement locking,
   which allows finer grained configuration of what is considered locked
   and unlocked. Then complement locking is enabled on a bunch of Winbond
   W25 flashes.
 
 - Fix die erase support on Spansion flashes. Die erase is only supported
   on multi-die flashes, but the die erase opcode was set for all. When
   the opcode is set, it overrides the default chip erase opcode which
   should be used for single-die flashes. Only set the opcode on
   multi-die flashes. Also, the opcode was not set on multi-die s28hx-t
   flashes. Set it so they can use die-erase correctly.
 
 General changes:
 
 - A few drivers and mappings have been removed following SoCs support
   removal.
 
 - And again, there is the usual load of misc improvements and fixes.
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Merge tag 'mtd/for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull mtd updates from Miquel Raynal:
 "NAND changes:

   - Extend SPI NAND continuous read to Winbond devices, which requires
     numerous changes in the spi-{mem,nand} layers such as the need for
     a secondary read operation template

   - Continuous reads in general have also been enhanced/fixed for
     avoiding potential issues at probe time and at block boundaries

  SPI NOR changes:

   - Big set of cleanups and improvements to the locking support.

     This series contains some cleanups and bug fixes for code and
     documentation around write protection. Then support is added for
     complement locking, which allows finer grained configuration of
     what is considered locked and unlocked. Then complement locking is
     enabled on a bunch of Winbond W25 flashes

   - Fix die erase support on Spansion flashes.

     Die erase is only supported on multi-die flashes, but the die erase
     opcode was set for all. When the opcode is set, it overrides the
     default chip erase opcode which should be used for single-die
     flashes. Only set the opcode on multi-die flashes. Also, the opcode
     was not set on multi-die s28hx-t flashes. Set it so they can use
     die-erase correctly

  General changes:

   - A few drivers and mappings have been removed following SoCs support
     removal

   - And again, there is the usual load of misc improvements and fixes"

* tag 'mtd/for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (63 commits)
  mtd: cfi: Use common error handling code in two functions
  mtd: slram: simplify register_device() cleanup
  mtd: slram: remove failed entries from the device list
  mtd: rawnand: ndfc: use ioread32be/iowrite32be and allow COMPILE_TEST
  mtd: spi-nor: spansion: add die erase support in s28hx-t
  mtd: spi-nor: spansion: use die erase for multi-die devices only
  mtd: spi-nor: winbond: Add W25Q02NWxxIM CMP locking support
  mtd: spi-nor: winbond: Add W25Q01NWxxIM CMP locking support
  mtd: spi-nor: winbond: Add W25Q01NWxxIQ CMP locking support
  mtd: spi-nor: winbond: Add W25H02NWxxAM CMP locking support
  mtd: spi-nor: winbond: Add W25H01NWxxAM CMP locking support
  mtd: spi-nor: winbond: Add W25H512NWxxAM CMP locking support
  mtd: spi-nor: Add steps for testing locking with CMP
  mtd: spi-nor: swp: Add support for the complement feature
  mtd: spi-nor: Add steps for testing locking support
  mtd: maps: remove obsolete impa7 map driver
  mtd: maps: remove uclinux map driver
  mtd: maps: remove AMD Élan specific drivers
  mtd: inftlmount: convert printk(KERN_WARNING) to pr_warn
  mtd: Consistently define pci_device_ids
  ...
 2026-06-21 12:25:17 -07:00
Zenghui Yu
de9aa5ea2d docs: ipmi: Fix path of the "hotmod" module parameter 
The correct path of the "hotmod" module parameter should be
/sys/module/ipmi_si/parameters/hotmod. Fix it.

Signed-off-by: Zenghui Yu <zenghui.yu@linux.dev>
Message-ID: <20260620122747.7902-1-zenghui.yu@linux.dev>
Signed-off-by: Corey Minyard <corey@minyard.net>
 2026-06-20 10:23:03 -05:00
Linus Torvalds
8c13415c8a [GIT PULL for v7.2] media updates 
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Merge tag 'media/v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - v4l2:
     - core: fix subdev sensor ownership
     - subdev: Allow accessing routes with STREAMS client capability
     - ctrls: Add validation for HEVC active reference counts and
       background detection control
     - common: Add YUV24 format info and has_alpha helper

 - vb2: Change vb2_read() and vb2_write() return types to ssize_t

 - i2c: cvs: Add driver of Intel Computer Vision Sensing Controller(CVS)

 - atmel-isc: remove deprecated driver

 - cec: Add CEC Latency Indication Protocol (LIP) support

 - imon: Add iMON VFD HID OEM v1.2 key mappings

 - AVMatrix: new HWS capture driver

 - isp4: new AMD capture driver

 - qcom:
     - iris: Add hierarchical coding, B-frame, and Long-Term Reference
       support for encoder
     - camss: Add SM6350 platform support
     - venus: Add SM6115 platform support

 - chips-media: wave5: Add support for Packed YUV422, CBP profile, and
   background detection

 - csi2rx: Add multistream support and 32 dma chans

 - Several cleanups and fixes

* tag 'media/v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (394 commits)
  media: v4l2-fwnode: Fix subdev owner overwritten in v4l2_async_register_subdev_sensor()
  media: qcom: iris: vdec: allow GEN2 decoding into 10bit format
  media: qcom: iris: vdec: update find_format to handle 8bit and 10bit formats
  media: qcom: iris: vdec: update size and stride calculations for 10bit formats
  media: qcom: iris: gen2: add support for 10bit decoding
  media: qcom: iris: add QC10C & P010 buffer size calculations
  media: qcom: iris: add helpers for 8bit and 10bit formats
  media: qcom: iris: Fix FPS calculation and VPP FW overhead
  media: qcom: camss: vfe-340: Support for PIX client
  media: qcom: camss: vfe-340: Proper client handling
  media: qcom: camss: csid-340: Enable PIX interface routing
  media: qcom: camss: csid-340: Add port-to-interface mapping
  media: qcom: camss: csid-340: Switch to generic CSID_CFG/CTRL registers
  media: iris: Initialize HFI ops after firmware load in core init
  media: iris: drop struct iris_fmt
  media: iris: Add platform data for X1P42100
  media: iris: Add hardware power on/off ops for X1P42100
  media: iris: optimize COMV buffer allocation for VPU3x and VPU4x
  media: iris: add FPS calculation and VPP FW overhead in frequency formula
  media: qcom: iris: Simplify COMV size calculation
  ...
 2026-06-18 17:21:54 -07:00
Linus Torvalds
cfd96ad138 Updates for the 7.2 release 
A race condition and a couple of static analysis issues are fixed in BTT
 Use sysfs_emit() in preparation for removal of cpumap_print_to_pagebuf()
 Escalate a dev_dbg to dev_err in a resource conflict message
 MAINTAINER file updates
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Merge tag 'libnvdimm-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull nvdimm/dax updates from Alison Schofield:

 - Fix a race condition and a couple of static analysis issues in BTT

 - Use sysfs_emit() in preparation for removal of cpumap_print_to_pagebuf()

 - Escalate a dev_dbg to dev_err in a resource conflict message

 - MAINTAINER file updates

* tag 'libnvdimm-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  MAINTAINERS: nvdimm: Include maintainer profile
  MAINTAINERS: Update address for Ira Weiny
  MAINTAINERS: Add maintainer info for libnvdimm and DAX
  nvdimm: Use sysfs_emit() for cpumask show callback
  dax/bus: Upgrade resource conflict message to dev_err() in alloc_dax_region()
  nvdimm/btt: Free arenas on btt_init() error paths
  nvdimm/btt: Free arena sub-allocations on discover_arenas() error path
  nvdimm/btt: Handle preemption in BTT lane acquisition
 2026-06-18 16:27:58 -07:00
Linus Torvalds
b85966adbf Networking changes for 7.2. 
Core & protocols
 ----------------
 
  - Work on removing rtnl_lock protection throughout the stack continues.
    In this chapter:
     - don't use rtnl_lock for IPv6 multicast routing configuration
     - don't take rtnl_lock in ethtool for modern drivers
     - prepare Qdisc dump callbacks for rtnl_lock removal
 
  - Support dumping just ifindex + name of all interfaces, under RCU.
    It's a common operation for Netlink CLI tools (when translating
    names to ifindexes) and previously required full rtnl_lock.
 
  - Support dumping qdiscs and page pools for a specific netdev. Even tho
    user space wants a dump of all netdevs, most of the time, the OOO
    programming model results in repeating the dump for each netdev.
    Which, in absence of a cache, leads to a O(n^2) behavior.
 
  - Flush nexthops once on multi-nexthop removal (e.g. when device goes
    down), another O(n^2) -> O(n) improvement.
 
  - Rehash locally generated traffic to a different nexthop on retransmit
    timeout.
 
  - Honor oif when choosing nexthop for locally generated IPv6 traffic.
 
  - Convert TCP Auth Option to crypto library, and drop non-RFC algos.
 
  - Increase subflow limits in MPTCP to 64 and endpoint limit to 256.
 
  - Support MPTCP signaling of IPv6 address + port (ADD_ADDR). We need
    to selectively skip reporting of the standard TCP Timestamp option,
    because they won't fit into the header space together (12 + 30 > 40).
 
  - Support using bridge neighbor suppression, Duplicate Address
    Detection, Gratuitous ARP and unsolicited NA forwarding - in EVPN
    deployments, e.g. VXLAN fabrics (IPv4 and IPv6).
 
  - Improve link state reporting for upper netdevs (e.g. macvlan) over
    tunnel devices (again, mostly for EVPN deployments).
 
  - Support binding GENEVE tunnels to a local address.
 
  - Speed up UDP tunnel destruction (remove one synchronize_rcu()).
 
  - Support exponential field encoding in multicast (IGMPv3 and MLDv2).
 
  - Support attaching PSP crypto offload to containers (veth, netkit).
 
  - Add a new IPSec Netlink message XFRM_MSG_MIGRATE_STATE that allows
    migrating individual IPsec SAs independently of their policies.
    The existing XFRM_MSG_MIGRATE is tightly coupled to policy+SA
    migration, lacks SPI for unique SA identification, and cannot express
    reqid changes or migrate Transport mode selectors. The new interface
    identifies the SA via SPI and mark, supports reqid changes, address
    family changes, encap removal, and uses an atomic create+install
    flow under x->lock to prevent SN/IV reuse during AEAD SA migration.
 
  - Implement GRO/GSO support for PPPoE.
 
  - Convert sockopt callbacks in a number of protocols to iov_iter.
 
 Cross-tree stuff
 ----------------
 
  - Remove support for Crypto TFM cloning (unblocked after the TCP Auth
    Option rework). This feature regressed performance for all crypto API
    users, since it changed crypto transformation objects into reference-
    -counted objects.
 
  - Add FCrypt-PCBC implementation to rxrpc and remove it from the global
    crypto API as obsolete and insecure.
 
 Wireless
 --------
 
  - Major rework of station bandwidth handling, fixing issues with lower
    capability than AP.
 
  - Cleanups for EMLSR spec issues (drafts differed).
 
  - More Neighbor Awareness Networking (Wi-Fi Aware) work (multicast,
    schedule improvements, multi-station etc.)
 
  - Some Ultra High Reliability (UHR) / IEEE 802.11bn (D1.4) work
    (e.g. non-primary channel access, UHR DBE support).
 
  - Fine Timing Measurement ranging (i.e. distance measurement) APIs.
 
 Netfilter
 ---------
 
  - Use per-rule hash initval in nf_conncount. This avoids unnecessary
    lock contention with short keys (e.g. conntrack zones) in different
    namespaces.
 
  - Various safety improvements, both in packet parsing and object
    lifetimes. Notably add refcounts to conntrack timeout policy.
 
 Deletions
 ---------
 
  - Remove TLS + sockmap integration. TLS wants to pin user pages
    to avoid a copy, and sockmap wants to write to the input stream.
    More work on this integration is clearly needed, and we can't find
    any users (original author admitted that they never deployed it).
 
  - Remove support for TLS offload with TCP Offload Engine (the far
    more common opportunistic offload is retained). The locking looks
    unfixable (driver sleeps under TCP spin locks) and people from
    the vendor that added this are AWOL.
 
  - Remove more ATM code, trying to leave behind only what PPPoATM needs,
    AAL5 and br2684 with permanent circuits.
 
  - Remove AppleTalk. Let it join hamradio in our out of tree protocol
    graveyard, I mean, repository.
 
  - Disable 32-bit x_tables compatibility (32bit binaries on 64bit kernel)
    interface in user namespaces. To be deleted completely, soon.
 
  - Remove 5/10 MHz support from cfg80211/mac80211.
 
 Drivers
 -------
 
  - Software:
    - Support DEVMEM/DMABUF Tx over NETMEM_TX_NO_DMA devices (netkit).
    - bonding: add knob to strictly follow 802.3ad for link state.
 
  - New drivers:
    - Alibaba Elastic Ethernet Adaptor (cloud vNIC).
    - NXP NETC switch within i.MX94.
 
  - DPLL:
    - Add operational state to pins (implement in zl3073x).
    - Add generic DPLL type, for daisy-chaining DPLLs (implement in ice).
 
  - Ethernet high-speed NICs:
    - Huawei (hinic3):
      - enhance tc flow offload support with queue selection, tunnels
    - nVidia/Mellanox:
      - avoid over-copying payload to the skb's linear part (up to 60%
        win for LRO on slow CPUs like ARM64 V2)
      - expose more per-queue stats over the standard API
      - support additional, unprivileged PFs in the DPU configuration
      - support Socket Direct (multi-PF) with switchdev offloads
      - add a pool / frag allocator for DMA mapped buffers for control
        objects, save memory on systems with 64kB page size
      - take advantage of the ability to dynamically change RSS table
        size, even when table is configured by the user
      - increase the max RSS table size for even traffic distribution
 
  - Ethernet NICs:
    - Marvell/Aquantia:
      - AQC113 PTP support
    - Realtek USB (r8152):
      - support 10Gbit Link Speeds and Energy-Efficient Ethernet (EEE)
      - support firmware loaded (for RTL8157/RTL8159)
      - support for the RTL8159
    - Intel (ixgbe):
      - support Energy-Efficient Ethernet (EEE) on E610 devices
 
  - Ethernet switches:
    - Airoha:
      - support multiple netdevs on a single GDM block / port
    - Marvell (mv88e6xxx):
      - support SERDES of mv88e6321
    - Microchip (ksz8/9):
      - rework the driver callbacks to remove one indirection layer
    - Motorcomm (yt921x):
      - support port rate policing
      - support TBF qdisc offload
      - support ACL/flower offload
    - nVidia/Mellanox:
      - expose per-PG rx_discards
    - Realtek:
      - rtl8365mb: bridge offloading and VLAN support
 
  - Ethernet PHYs:
    - Airoha:
      - support Airoha AN8801R Gigabit PHYs.
    - Micrel:
      - implement 3 low-loss cable tunables
    - Realtek:
      - support MDI swapping for RTL8226-CG
      - support MDIO for RTL931x
    - Qualcomm:
      - at803x: Rx and Tx clock management for IPQ5018 PHY
    - Motorcomm:
      - support YT8522 100M RMII PHY
      - set drive strength in YT8531s RGMII
    - TI:
      - dp83822: add optional external PHY clock
 
  - Bluetooth:
    - hci_sync: add support for HCI_LE_Set_Host_Feature [v2]
    - SMP: use AES-CMAC library API
    - Intel:
      - support Product level reset
      - support smart trigger dump
    - Mediatek:
      - add event filter to filter specific event
    - Realtek:
      - fix RTL8761B/BU broken LE extended scan
 
  - WiFi:
    - Broadcom (b43):
      - new support for a 11n device
    - MediaTek (mt76):
      - support mt7927
      - mt792x: broken usb transport detection
      - mt7921: regulatory improvements
    - Qualcomm (ath9k):
      - GPIO interface improvements
    - Qualcomm (ath12k):
      - WDS support
      - replace dynamic memory allocation in WMI Rx path
      - thermal throttling/cooling device support
      - 6 GHz incumbent interference detection
      - channel 177 in 5 GHz
    - Realtek (rt89):
      - RTL8922AU support
      - USB 3 mode switch for performance
      - better monitor radiotap support
      - RTL8922DE preparations
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Work on removing rtnl_lock protection throughout the stack
     continues. In this chapter:
       - don't use rtnl_lock for IPv6 multicast routing configuration
       - don't take rtnl_lock in ethtool for modern drivers
       - prepare Qdisc dump callbacks for rtnl_lock removal

   - Support dumping just ifindex + name of all interfaces, under RCU.
     It's a common operation for Netlink CLI tools (when translating
     names to ifindexes) and previously required full rtnl_lock.

   - Support dumping qdiscs and page pools for a specific netdev. Even
     tho user space wants a dump of all netdevs, most of the time, the
     OOO programming model results in repeating the dump for each
     netdev. Which, in absence of a cache, leads to a O(n^2) behavior.

   - Flush nexthops once on multi-nexthop removal (e.g. when device goes
     down), another O(n^2) -> O(n) improvement.

   - Rehash locally generated traffic to a different nexthop on
     retransmit timeout.

   - Honor oif when choosing nexthop for locally generated IPv6 traffic.

   - Convert TCP Auth Option to crypto library, and drop non-RFC algos.

   - Increase subflow limits in MPTCP to 64 and endpoint limit to 256.

   - Support MPTCP signaling of IPv6 address + port (ADD_ADDR). We need
     to selectively skip reporting of the standard TCP Timestamp option,
     because they won't fit into the header space together (12 + 30 >
     40).

   - Support using bridge neighbor suppression, Duplicate Address
     Detection, Gratuitous ARP and unsolicited NA forwarding - in EVPN
     deployments, e.g. VXLAN fabrics (IPv4 and IPv6).

   - Improve link state reporting for upper netdevs (e.g. macvlan) over
     tunnel devices (again, mostly for EVPN deployments).

   - Support binding GENEVE tunnels to a local address.

   - Speed up UDP tunnel destruction (remove one synchronize_rcu()).

   - Support exponential field encoding in multicast (IGMPv3 and MLDv2).

   - Support attaching PSP crypto offload to containers (veth, netkit).

   - Add a new IPSec Netlink message XFRM_MSG_MIGRATE_STATE that allows
     migrating individual IPsec SAs independently of their policies.

     The existing XFRM_MSG_MIGRATE is tightly coupled to policy+SA
     migration, lacks SPI for unique SA identification, and cannot
     express reqid changes or migrate Transport mode selectors.

     The new interface identifies the SA via SPI and mark, supports
     reqid changes, address family changes, encap removal, and uses an
     atomic create+install flow under x->lock to prevent SN/IV reuse
     during AEAD SA migration.

   - Implement GRO/GSO support for PPPoE.

   - Convert sockopt callbacks in a number of protocols to iov_iter.

  Cross-tree stuff:

   - Remove support for Crypto TFM cloning (unblocked after the TCP Auth
     Option rework). This feature regressed performance for all crypto
     API users, since it changed crypto transformation objects into
     reference-counted objects.

   - Add FCrypt-PCBC implementation to rxrpc and remove it from the
     global crypto API as obsolete and insecure.

  Wireless:

   - Major rework of station bandwidth handling, fixing issues with
     lower capability than AP.

   - Cleanups for EMLSR spec issues (drafts differed).

   - More Neighbor Awareness Networking (Wi-Fi Aware) work (multicast,
     schedule improvements, multi-station etc.)

   - Some Ultra High Reliability (UHR) / IEEE 802.11bn (D1.4) work
     (e.g. non-primary channel access, UHR DBE support).

   - Fine Timing Measurement ranging (i.e. distance measurement) APIs.

  Netfilter:

   - Use per-rule hash initval in nf_conncount. This avoids unnecessary
     lock contention with short keys (e.g. conntrack zones) in different
     namespaces.

   - Various safety improvements, both in packet parsing and object
     lifetimes. Notably add refcounts to conntrack timeout policy.

  Deletions:

   - Remove TLS + sockmap integration. TLS wants to pin user pages to
     avoid a copy, and sockmap wants to write to the input stream. More
     work on this integration is clearly needed, and we can't find any
     users (original author admitted that they never deployed it).

   - Remove support for TLS offload with TCP Offload Engine (the far
     more common opportunistic offload is retained). The locking looks
     unfixable (driver sleeps under TCP spin locks) and people from the
     vendor that added this are AWOL.

   - Remove more ATM code, trying to leave behind only what PPPoATM
     needs, AAL5 and br2684 with permanent circuits.

   - Remove AppleTalk. Let it join hamradio in our out of tree protocol
     graveyard, I mean, repository.

   - Disable 32-bit x_tables compatibility (32bit binaries on 64bit
     kernel) interface in user namespaces. To be deleted completely,
     soon.

   - Remove 5/10 MHz support from cfg80211/mac80211.

  Drivers:

   - Software:
       - Support DEVMEM/DMABUF Tx over NETMEM_TX_NO_DMA devices (netkit)
       - bonding: add knob to strictly follow 802.3ad for link state

   - New drivers:
       - Alibaba Elastic Ethernet Adaptor (cloud vNIC).
       - NXP NETC switch within i.MX94.

   - DPLL:
       - Add operational state to pins (implement in zl3073x).
       - Add generic DPLL type, for daisy-chaining DPLLs (implement in ice).

   - Ethernet high-speed NICs:
       - Huawei (hinic3):
           - enhance tc flow offload support with queue selection,
             tunnels
       - nVidia/Mellanox:
           - avoid over-copying payload to the skb's linear part (up to
             60% win for LRO on slow CPUs like ARM64 V2)
           - expose more per-queue stats over the standard API
           - support additional, unprivileged PFs in the DPU
             configuration
           - support Socket Direct (multi-PF) with switchdev offloads
           - add a pool / frag allocator for DMA mapped buffers for
             control objects, save memory on systems with 64kB page size
           - take advantage of the ability to dynamically change RSS
             table size, even when table is configured by the user
           - increase the max RSS table size for even traffic
             distribution

   - Ethernet NICs:
       - Marvell/Aquantia:
           - AQC113 PTP support
       - Realtek USB (r8152):
           - support 10Gbit Link Speeds and Energy-Efficient Ethernet
             (EEE)
           - support firmware loaded (for RTL8157/RTL8159)
           - support for the RTL8159
       - Intel (ixgbe):
           - support Energy-Efficient Ethernet (EEE) on E610 devices

   - Ethernet switches:
       - Airoha:
           - support multiple netdevs on a single GDM block / port
       - Marvell (mv88e6xxx):
           - support SERDES of mv88e6321
       - Microchip (ksz8/9):
           - rework the driver callbacks to remove one indirection layer
       - Motorcomm (yt921x):
           - support port rate policing
           - support TBF qdisc offload
           - support ACL/flower offload
       - nVidia/Mellanox:
           - expose per-PG rx_discards
       - Realtek:
           - rtl8365mb: bridge offloading and VLAN support

   - Ethernet PHYs:
       - Airoha:
           - support Airoha AN8801R Gigabit PHYs.
       - Micrel:
           - implement 3 low-loss cable tunables
       - Realtek:
           - support MDI swapping for RTL8226-CG
           - support MDIO for RTL931x
       - Qualcomm:
           - at803x: Rx and Tx clock management for IPQ5018 PHY
       - Motorcomm:
           - support YT8522 100M RMII PHY
           - set drive strength in YT8531s RGMII
       - TI:
           - dp83822: add optional external PHY clock

   - Bluetooth:
       - hci_sync: add support for HCI_LE_Set_Host_Feature [v2]
       - SMP: use AES-CMAC library API
       - Intel:
           - support Product level reset
           - support smart trigger dump
       - Mediatek:
           - add event filter to filter specific event
       - Realtek:
           - fix RTL8761B/BU broken LE extended scan

   - WiFi:
       - Broadcom (b43):
           - new support for a 11n device
       - MediaTek (mt76):
           - support mt7927
           - mt792x: broken usb transport detection
           - mt7921: regulatory improvements
       - Qualcomm (ath9k):
           - GPIO interface improvements
       - Qualcomm (ath12k):
           - WDS support
           - replace dynamic memory allocation in WMI Rx path
           - thermal throttling/cooling device support
           - 6 GHz incumbent interference detection
           - channel 177 in 5 GHz
       - Realtek (rt89):
           - RTL8922AU support
           - USB 3 mode switch for performance
           - better monitor radiotap support
           - RTL8922DE preparations"

* tag 'net-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1778 commits)
  ipv4: fib_rule: Move fib4_rules_exit() to ->exit().
  net: serialize netif_running() check in enqueue_to_backlog()
  net: skmsg: preserve sg.copy across SG transforms
  appletalk: move the protocol out of tree
  appletalk: stop storing per-interface state in struct net_device
  selftests/bpf: test that TLS crypto is rejected on a sockmap socket
  selftests/bpf: drop the unused kTLS program from test_sockmap
  selftests/bpf: remove sockmap + ktls tests
  tls: remove dead sockmap (psock) handling from the SW path
  tls: reject the combination of TLS and sockmap
  atm: remove orphaned uAPI for deleted drivers, protocols and SVCs
  atm: remove unused ATM PHY operations
  atm: remove the unused pre_send and send_bh device operations
  atm: remove the unused change_qos device operation
  atm: remove SVC socket support and the signaling daemon interface
  atm: remove the local ATM (NSAP) address registry
  atm: remove dead SONET PHY ioctls
  atm: remove the unused send_oam / push_oam callbacks
  atm: remove AAL3/4 transport support
  net: dsa: sja1105: fix lastused timestamp in flower stats
  ...
 2026-06-17 08:17:00 +01:00
Linus Torvalds
a87bbc4578 Things have calmed down a bit on the docs front, with no earthshaking 
changes this time around:
 
 - Ongoing work on the Japanese and Portuguese translations.
 
 - Better integration of the MAINTAINERS file into the rendered documents,
   including a search interface.
 
 - A seemingly infinite supply of fixes for typos, minor grammatical issues,
   and related problems that LLMs find with abandon.
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Merge tag 'docs-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux

Pull documentation updates from Jonathan Corbet:
 "Things have calmed down a bit on the docs front, with no earthshaking
  changes this time around:

   - Ongoing work on the Japanese and Portuguese translations

   - Better integration of the MAINTAINERS file into the rendered
     documents, including a search interface

   - A seemingly infinite supply of fixes for typos, minor grammatical
     issues, and related problems that LLMs find with abandon"

* tag 'docs-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux: (93 commits)
  docs: pt_BR: Translate 3.Early-stage.rst into Portuguese
  docs: pt_BR: update "Purpose of Defconfigs" section in maintainer-soc.rst
  Documentation: bug-hunting.rst: fix grammar
  docs/ja_JP: translate submitting-patches.rst (interleaved-replies)
  docs: Fix minor grammatical error
  docs/{it_it,sp_SP,zh_CN,zh_TW}: update references to removed CONFIG_DEBUG_SLAB
  Documentation: process: fix brackets
  Documentation: arch: fix brackets
  docs/dyndbg: explain flags parse 1st
  docs/dyndbg: update examples \012 to \n
  docs: kernel-parameters: Fix stale sticore file paths
  docs: real-time: Fix duplicated sched(7) text
  docs: kgdb: Fix stale source file paths
  docs: sonypi: Fix stale header file path
  docs: kernel-parameters: Remove sa1100ir IrDA parameter
  iommu: Documentation: rearrange, update kernel-parameters
  docs: md: fix grammar in speed_limit description
  docs: changes.rst: restore pahole 1.26 minimum (regressed by sort)
  Documentation: Fix syntax of kmalloc_objs example in coding style doc
  docs: pt_BR: update maintainer-handbooks
  ...
 2026-06-16 08:35:59 +05:30
Shashank Balaji
a7a7dc5c46 driver core: platform: set mod_name in driver registration 
Pass KBUILD_MODNAME through the driver registration macro so that the
driver core can create the module symlink in sysfs for built-in drivers,
and fixup all callers.

The Rust platform adapter is updated to pass the module name through to
the new parameter.

Tested on qemu with:
- x86 defconfig + CONFIG_RUST
- arm64 defconfig + CONFIG_RUST + CONFIG_CORESIGHT stuff

Examples after this patch:

    /sys/bus/platform/drivers/...
        coresight-itnoc/module		-> coresight_tnoc
        coresight-static-tpdm/module	-> coresight_tpdm
        coresight-catu-platform/module	-> coresight_catu
        serial8250/module		-> 8250
        acpi-ged/module			-> acpi
        vmclock/module			-> ptp_vmclock

Co-developed-by: Rahul Bukte <rahul.bukte@sony.com>
Signed-off-by: Rahul Bukte <rahul.bukte@sony.com>
Signed-off-by: Shashank Balaji <shashank.mahadasyam@sony.com>
Link: https://patch.msgid.link/20260518-acpi_mod_name-v5-4-705ccc430885@sony.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
 2026-06-08 23:28:24 +02:00
Alison Schofield
8d4b989d9c nvdimm/btt: Handle preemption in BTT lane acquisition 
BTT lanes serialize access to per-lane metadata and workspace state
during BTT I/O. The btt-check unit test reports data mismatches during
BTT writes due to a race in lane acquisition that can lead to silent
data corruption.

The existing lane model uses a spinlock together with a per-CPU
recursion count. That recursion model stopped being valid after BTT
lanes became preemptible: another task can run on the same CPU,
observe a non-zero recursion count, bypass locking, and use the same
lane concurrently.

BTT lanes are also held across arena_write_bytes() calls. That path
reaches nsio_rw_bytes(), which flushes writes with nvdimm_flush().
Some provider flush callbacks can sleep, making a spinlock the wrong
primitive for the lane lifetime.

Replace the spinlock-based recursion model with a dynamically
allocated per-lane mutex array and take the lane lock
unconditionally.

Add might_sleep() to catch any future atomic-context caller.

Found with the ndctl unit test btt-check.sh.

Fixes: 36c75ce3bd ("nd_btt: Make BTT lanes preemptible")
Assisted-by: Claude-Sonnet:4.5
Tested-by: Aboorva Devarajan <aboorvad@linux.ibm.com>
Reviewed-by: Aboorva Devarajan <aboorvad@linux.ibm.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://patch.msgid.link/20260528021625.618462-1-alison.schofield@intel.com
Signed-off-by: Alison Schofield <alison.schofield@intel.com>
 2026-06-01 13:53:24 -07:00
David Lechner
6bce70d0a9 docs: iio: triggered-buffers: use new helpers in example 
Update the "typical" triggered buffer example to use various new helpers
that have been added in the last year or so. This reflects current
expectations of how similar code should be written.

Also zero-initialize the buffer so we don't leak stack data. And fix a
missing semicolon while we're at it.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Stepan Ionichev <sozdayvek@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2026-05-31 11:01:46 +01:00
Stepan Ionichev
2f856ad3f7 Documentation: iio: fix typo in triggered-buffers example 
In the "IIO triggered buffer setup" example, iio_triggered_buffer_setup()
is called with "sensor_iio_polfunc" (single 'l') while the function is
defined and later referenced as "sensor_iio_pollfunc" (double 'l'). Fix
the misspelling so the example is consistent.

Signed-off-by: Stepan Ionichev <sozdayvek@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2026-05-31 10:59:40 +01:00
Miquel Raynal
f5d81415a7 mtd: spi-nor: Add steps for testing locking with CMP 
Extend the test coverage by giving guidelines to verify the CMP bit acts
according to our expectations.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
 2026-05-27 14:36:02 +02:00
Miquel Raynal
6000eab451 mtd: spi-nor: Add steps for testing locking support 
As recently raised on the mailing list, it may be useful to propose a
list of steps to go through in order to prove the devices have been
described correctly, especially since all the block protection
information is not stored in any kind of table and is instead filled
manually by developers.

Use the debugfs output to ease the comparison between expectations and
reality.

[rdunlap@infradead.org: fix build warning]
  Link: https://lore.kernel.org/linux-mtd/20260526172341.773398-1-rdunlap@infradead.org/
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
 2026-05-27 14:36:02 +02:00
Akash Sukhavasi
5aaaf31af7 dt-bindings: serial: rs485: remove deprecated .txt binding stub 
The plain text binding file was superseded by the YAML schema in
commit d50f974c4f ("dt-bindings: serial: Convert rs485 bindings
to json-schema"). The file now contains only a redirect notice.
Remove it, and update references in serial_core.c and
serial-rs485.rst to point to the YAML schema.

Signed-off-by: Akash Sukhavasi <akash.sukhavasi@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260521162137.6325-1-akash.sukhavasi@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2026-05-22 11:47:18 +02:00
Ivan Vecera
9c11fcb2e9 dpll: add fractional frequency offset to pin-parent-device 
Add both fractional-frequency-offset (PPM) and
fractional-frequency-offset-ppt (PPT) attributes to the
pin-parent-device nested attribute set, alongside the existing
top-level pin attributes. Both carry the same measurement at
different precisions.

Introduce enum dpll_ffo_type and struct dpll_ffo_param to
distinguish FFO contexts: DPLL_FFO_PORT_RXTX_RATE for the RX vs
TX symbol rate offset reported at the top level, and
DPLL_FFO_PIN_DEVICE for the pin vs parent DPLL offset reported
in the pin-parent-device nest.

Add a supported_ffo bitmask to struct dpll_pin_ops so drivers
declare which FFO types they support. The core only calls ffo_get
for types the driver has opted into, eliminating the need for
per-driver NULL pointer guards. Validate at pin registration time
that supported_ffo is not set without an ffo_get callback.

Update mlx5 (DPLL_FFO_PORT_RXTX_RATE) and zl3073x
(DPLL_FFO_PORT_RXTX_RATE) drivers to use the new API.

Add documentation for both FFO types to dpll.rst.

Changes v3 -> v4:
- Replace dpll=NULL overloading with enum dpll_ffo_type and
  struct dpll_ffo_param (Jakub Kicinski)
- Add supported_ffo opt-in bitmask in dpll_pin_ops for fail-close
  driver validation (Jakub Kicinski)
- Add WARN_ON in dpll_pin_register for supported_ffo without
  ffo_get callback

Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Link: https://patch.msgid.link/20260511155816.99936-2-ivecera@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2026-05-12 18:48:07 -07:00