Commit Graph

4122 Commits

Author SHA1 Message Date
Linus Torvalds
27a59c0251 - switch gpio code to use swnodes
- rework of TXX9 gpio code
 - enable multi-vpe for econet
 - cleanups and fixes
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Merge tag 'mips_7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - switch gpio code to use swnodes

 - rework of TXX9 gpio code

 - enable multi-vpe for econet

 - cleanups and fixes

* tag 'mips_7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  mips: dts: econet: Describe dual-VPE 34Kc processor
  mips: econet: add multi-vpe capability to EN751221
  MIPS: ptrace: Fix syscall skipping via PTRACE_SYSCALL
  mips: remove dead select
  MIPS: BCM47XX: Convert buttons to software nodes
  ssb: gpio: Add and register software node for GPIO controller
  bcma: gpio: Add and register software node for GPIO controller
  MIPS: ip22-gio: Drop #include of <linux/mod_devicetable.h>
  MIPS: TXX9: Clean up txx9_iocled_init()
  MIPS: TXX9: Convert gpio_txx9 to dynamic GPIO base allocation
  MIPS: TXX9: Drop GPIOLIB_LEGACY select
  MIPS: TXX9: Use GPIO lookup table for iocled LEDs
  MIPS: TXX9: Reduce TXX9_IOCLED_MAXLEDS to 3
  MIPS: TXX9: rbtx4927: Use GPIO lookup table for TXx9 LEDs
  MIPS: TXX9: rbtx4927: Use GPIO lookup table for SIO DTR
  MIPS: TXX9: Remove txx9_7segled_*() forward declarations
  MIPS: TXX9: Remove tx4938_spi_init() and txx9_spi_init()
  MIPS: kernel: proc: Use two seq_putc() calls in show_cpuinfo()
2026-08-21 12:39:49 -07:00
Linus Torvalds
7711f4417f gpio updates for v7.3-rc1
GPIO core:
 - extend the gpio-regmap abstraction layer with more features allowing users
   to override configuration setting, translate register values and masks and
   enable/disable interrupts
 - extend GPIO kunit tests with suites verifying probe ordering by software
   node devlink support and software node hogs
 - shrink GPIO kunit initialization code
 - coding style updates (remove commas from sentinels where applicable)
 - with all users now converted treewide to using real firmware node links for
   software node GPIO lookup: remove the deprecated label-matching mechanism
   from from GPIO core
 - drop redundant return value check of nonseekable_open() in gpiolib-cdev
 - use IRQ trigger helpers where applicable
 
 Driver updates:
 - refactor error paths and logging in gpio-nomadik
 - use more modern interfaces for getting resources in gpio-rockchip,
   gpio-bt8xx and gpio-pca9570
 - add missing MODULE_DEVICE_TABLE() to gpio-sifive and gpio-vf610
 - drop unused FILONOFF macro from gpio-rcar
 - extend build coverage of ioport GPIO drivers with COMPILE_TEST=y
 - only enable the gpio-rtd driver by default with ARCH_REALTEK=y to avoid
   bloating the build
 - refactor coding style in several drivers
 - use correct endianess translation in gpio-pcf85x
 - add wake-up interrupt support to gpio-mvebu
 - apply initial value in direction output setter in gpio-by-pinctrl
 
 Misc:
 - replace linux/gpio.h inclusions treewide with linux/gpio/legacy.h which now
   exports all the deprecated APIs
 - select GPIOLIB_LEGACY in Kconfig where required treewide
 - use software nodes for gpio-keys in MFD drivers
 
 Devicetree bindings:
 - describe the realtek rtd1625 GPIO controller
 - document new models for gpio-pca95xx and gpio-cadence
 - document new property in gpio-rockchip
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Merge tag 'gpio-updates-for-v7.3-rc1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "GPIO core:
   - extend the gpio-regmap abstraction layer with more features
     allowing users to override configuration setting, translate
     register values and masks and enable/disable interrupts
   - extend GPIO kunit tests with suites verifying probe ordering by
     software node devlink support and software node hogs
   - shrink GPIO kunit initialization code
   - coding style updates (remove commas from sentinels where
     applicable)
   - with all users now converted treewide to using real firmware node
     links for software node GPIO lookup: remove the deprecated
     label-matching mechanism from from GPIO core
   - drop redundant return value check of nonseekable_open() in
     gpiolib-cdev
   - use IRQ trigger helpers where applicable

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

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

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

* tag 'gpio-updates-for-v7.3-rc1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (61 commits)
  gpio: gpio-by-pinctrl: Apply initial value in direction output wrapper
  dt-bindings: gpio: rockchip,gpio-bank: Add rockchip,grf property
  gpio: Use IRQ trigger mask helpers
  gpio: allow COMPILE_TEST for IOPORT drivers
  gpio: realtek: Add driver for Realtek DHC RTD1625 SoC
  gpio: regmap: Add IRQ enable/disable helpers
  gpio: regmap: Add set_config callback
  gpio: regmap: Add value_xlate callback
  gpio: regmap: Add gpio_regmap_operation to extend reg_mask_xlate callback
  gpio: regmap: Order kernel-doc descriptions with the actual appearance
  gpio: regmap: Apply default resource callbacks for regmap IRQ chip
  gpio: regmap: Provide default IRQ resource request and release callbacks
  Revert "gpio: realtek: Add driver for Realtek DHC RTD1625 SoC"
  gpib: gpio: replace linux/gpio.h inclusion
  Input: matrix_keyboard - replace linux/gpio.h inclusion
  phy: replace linux/gpio.h inclusions
  pcmcia: replace linux/gpio.h inclusions
  ASoC: replace linux/gpio.h inclusions
  mfd: replace linux/gpio.h inclusions
  sh: replace linux/gpio.h inclusions
  ...
2026-08-19 09:10:07 -07:00
Linus Torvalds
030c9f813b Treewide timer related cleanups:
- Remove the leftover CLOCK_TICK_RATE which has been scheduled for
     removal more than a decade ago along with some now empty asm/timex.h
     files.
 
   - Consolidate delay timer calibration
 
     The construct of having a define in a header requires that
     architectures provided asm/timex.h for no reason. Also the function
     name for reading the delay timer is confusing at best.
 
     Use a config switch to enable that functionality and rename the
     function to delay_read_timer() to make the purpose clear.
 
     This removes some more now empty asm/timex.h files as well.
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Merge tag 'timers-cleanups-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull treewide timer related cleanups from Thomas Gleixner:

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

 - Consolidate delay timer calibration

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

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

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

* tag 'timers-cleanups-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  calibrate: Rework delay timer calibration
  treewide: Remove CLOCK_TICK_RATE
  x86: Use PIT_TICK_RATE instead of CLOCK_TICK_RATE
2026-08-18 15:58:29 -07:00
Dmitry Ilvokhin
216c6c67f7 locking: Factor out queued_spin_release()
The contended_release tracepoint needs to hook queued_spin_unlock(), but
architectures with a custom unlock define queued_spin_unlock() directly,
leaving no single generic place to add the tracing.

Introduce queued_spin_release() as the arch-overridable release
primitive and make queued_spin_unlock() a generic wrapper around it.
An architecture that only customizes the release can then override
queued_spin_release() and inherit the generic wrapper.

Rename the MIPS override to queued_spin_release() accordingly. x86
paravirt overrides queued_spin_unlock() directly and is left unchanged.

No functional change intended.

Signed-off-by: Dmitry Ilvokhin <d@ilvokhin.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Juergen Gross <jgross@suse.com>
Link: https://patch.msgid.link/b8daabae6469ad72cc784a911f6cc43a6d45df3a.1785778551.git.d@ilvokhin.com
2026-08-07 17:58:09 +02:00
Bartosz Golaszewski
8bdba6f6cf gpio: legacy interface cleanups for 7.3
These are the remaining patches for legacy gpio interface
 cleanup, ensuring that files referencing them are sure to
 have CONFIG_GPIOLIB_LEGACY set, and use linux/gpio/legacy.h
 instead of the old linux/gpio.h header.
 
 There are a few more patches already merged in other
 branches for 7.3, including soc, led, net and media. Once
 everything is in, we can apply the final patches to turn
 off CONFIG_GPIOLIB_LEGACY by default and remove the obsolete
 header file.
 
 This branch is based on the immutable ib-mfd-legacy-gpio-7.3
 branch from mfd.git to avoid a conflict in the rohm drivers.
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Merge tag 'config-gpio-legacy-for-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground into gpio/for-next

gpio: legacy interface cleanups for 7.3

These are the remaining patches for legacy gpio interface
cleanup, ensuring that files referencing them are sure to
have CONFIG_GPIOLIB_LEGACY set, and use linux/gpio/legacy.h
instead of the old linux/gpio.h header.

There are a few more patches already merged in other
branches for 7.3, including soc, led, net and media. Once
everything is in, we can apply the final patches to turn
off CONFIG_GPIOLIB_LEGACY by default and remove the obsolete
header file.

This branch is based on the immutable ib-mfd-legacy-gpio-7.3
branch from mfd.git to avoid a conflict in the rohm drivers.
2026-07-27 09:56:49 +02:00
Arnd Bergmann
8fd460518c mips: replace linux/gpio.h inclusions
linux/gpio.h should no longer be used, convert these instead to
either linux/gpio/consumer.h or linux/gpio/legacy.h as needed.

Acked-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-07-24 20:12:48 +02:00
Uwe Kleine-König (The Capable Hub)
4a352e45cc MIPS: ip22-gio: Drop #include of <linux/mod_devicetable.h>
That header doesn't use any device id provided by
<linux/mod_devicetable.h>. Also the users of <asm/gio_device.h> (i.e.
arch/mips/sgi-ip22/ip22-gio.c and drivers/video/console/newport_con.c)
don't use any of them and they compile fine in a mips allmodconfig.

So drop the unused include that only yields unnecessary recompilations
when a device id struct changes.

Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-07-17 12:45:20 +02:00
Geert Uytterhoeven
b0034259e9 MIPS: TXX9: Clean up txx9_iocled_init()
The sole caller already uses dynamic GPIO base allocation, so drop
support for static allocation.
While at it, drop the no longer used "lowactive" parameter.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-07-17 12:43:09 +02:00
Geert Uytterhoeven
1d6f300c8e MIPS: TXX9: Convert gpio_txx9 to dynamic GPIO base allocation
Static allocation of GPIO base is deprecated, use dynamic allocation.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-07-17 12:43:09 +02:00
Geert Uytterhoeven
4e913a7350 MIPS: TXX9: Remove txx9_7segled_*() forward declarations
The actual implementation was removed in commit 5a8df9281b ("MIPS:
TXX9: Remove rbtx4939 board support").

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-07-17 12:43:09 +02:00
Geert Uytterhoeven
1235933df8 MIPS: TXX9: Remove tx4938_spi_init() and txx9_spi_init()
The last user of tx4938_spi_init() was removed in commit
21d638ef94 ("MIPS: TXX9: Remove rbtx4938 board support").

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-07-17 12:43:08 +02:00
Thomas Gleixner
3ed403bbc9 treewide: Remove CLOCK_TICK_RATE
This has been scheduled for removal more than a decade ago and the comments
related to it have been dutifully ignored. The last dependencies are gone.

Remove it along with various now empty asm/timex.h files.

Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Link: https://patch.msgid.link/20260410120317.910770161@kernel.org
2026-07-15 15:04:55 +02:00
Linus Torvalds
410430b616 collected fixes for 7.2
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Merge tag 'mips-fixes_7.2_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fixes from Thomas Bogendoerfer.

* tag 'mips-fixes_7.2_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: configs: Enable the current Ingenic USB PHY symbol
  MIPS: loongson64: add IRQ work based on self-IPI
  MIPS: mm: Add check for highmem before removing memory block
  mips: Add build salt to the vDSO
  MIPS: DEC: Ensure RTC platform device deregistration upon failure
2026-07-04 06:05:28 -10:00
Uwe Kleine-König (The Capable Hub)
ecca1d63c1 Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (headers)
<linux/mod_devicetable.h> is included in a many files:

	$ git grep '<linux/mod_devicetable.h>' ef0c9f75a1 | wc -l
	1598

; some of them are widely used headers. To stop mixing up different and
unrelated driver( type)s let the subsystem headers only use the subset
of the recently split <linux/mod_devicetable.h> that are relevant for
them.

The fallout (I hope) is addressed in the previous commits that handle
sources relying on e.g. <linux/i2c.h> pulling in the full legacy header
and thus providing pci_device_id.

Acked-by: Danilo Krummrich <dakr@kernel.org>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://patch.msgid.link/199fe46b624ba07fb9bd3e0cd6ff13757932cb5f.1782808461.git.u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
2026-07-03 07:38:16 +02:00
Xi Ruoyao
dceafc1803 MIPS: loongson64: add IRQ work based on self-IPI
Since the commit 91840be8f7 ("irq_work: Fix use-after-free in
irq_work_single() on PREEMPT_RT"), we observed the performance of
execve() is significantly impacted on MIPS.

While we are unsure how that commit caused the impact or how to improve
it (or even if it can be improved at all), implementing IRQ work with
self-IPI seems able to mitigate the impaction.

Perhaps this can/should be implemented for other MIPS architecture
processors as well, but we don't have the enough knowledge of them, nor
access to the hardware.  So only implement it for loongson64 here.

Link: https://lore.kernel.org/6be1cdd5f91dd7418a32ff372a6f3ae259b19195.camel@xry111.site/
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-06-29 11:36:36 +02:00
Linus Torvalds
4708cac0e2 Staging driver updates for 7.2-rc1
Here is the big set of staging driver updates for 7.2-rc1.
 
 Nothing major in here, just constant grind of tiny cleanups and coding
 style fixes and wrapper removals.  Overall more code was removed than
 added, always a nice sign that things are progressing forward.
 
 Changes outside of drivers/staging/ was due to the octeon driver
 changes, which for some reason also lives partially in the mips
 subsystem, someday that all will be untangled and cleaned up, or just
 removed entirely, it's hard to tell which is going to be its fate.
 
 Other than octeon driver cleanups, in here are the usual:
   - rtl8723bs driver reworking and cleanups, being the bulk of this
     merge window given all of the issues and wrappers involved in that
     beast of a driver.
   - most driver cleanups
   - sm750fb driver cleanups (which might be done, as this really should
     be moved to the drm layer one of these days...)
   - other tiny staging driver cleanups and fixes
 
 All of these have been in linux-next for many weeks with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here is the big set of staging driver updates for 7.2-rc1.

  Nothing major in here, just constant grind of tiny cleanups and coding
  style fixes and wrapper removals. Overall more code was removed than
  added, always a nice sign that things are progressing forward.

  Changes outside of drivers/staging/ was due to the octeon driver
  changes, which for some reason also lives partially in the mips
  subsystem, someday that all will be untangled and cleaned up, or just
  removed entirely, it's hard to tell which is going to be its fate.

  Other than octeon driver cleanups, in here are the usual:

   - rtl8723bs driver reworking and cleanups, being the bulk of this
     merge window given all of the issues and wrappers involved in that
     beast of a driver

   - most driver cleanups

   - sm750fb driver cleanups (which might be done, as this really should
     be moved to the drm layer one of these days...)

   - other tiny staging driver cleanups and fixes

  All of these have been in linux-next for many weeks with no reported
  issues"

* tag 'staging-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (199 commits)
  staging: most: video: avoid double free on video register failure
  staging: sm750: rename CamelCase variable Bpp to bpp
  staging: rtl8723bs: delete superfluous switch statement
  staging: sm750fb: Mark g_noaccel, g_nomtrr and g_dualview as __ro_after_init
  staging: rtl8723bs: propagate errno through hal xmit path
  staging: rtl8723bs: propagate errno through xmit enqueue path
  staging: rtl8723bs: convert rtw_xmit_classifier to return errno
  staging: rtl8723bs: make rtw_xmit_classifier static
  staging: rtl8723bs: simplify rtw_xmit_classifier control flow
  staging: rtl8723bs: make _rtw_enqueue_cmd return 0 on success
  staging: rtl8723bs: simplify rtw_enqueue_cmd control flow
  staging: rtl8723bs: make _rtw_enqueue_cmd static
  staging: rtl8723bs: simplify _rtw_enqueue_cmd control flow
  staging: rtl8723bs: fix multiple blank lines in more hal/ files
  staging: rtl8723bs: remove unused TXDESC_64_BYTES code
  staging: rtl8723bs: remove unused DBG_XMIT_BUF and DBG_XMIT_BUF_EXT code
  staging: rtl8723bs: fix multiple blank lines in hal/Hal* files
  staging: rtl8723bs: fix multiple blank lines in hal/ files
  staging: rtl8723bs: rtw_mlme: add blank line for readability
  staging: rtl8723bs: rtw_mlme: wrap rtw_sitesurvey_cmd condition
  ...
2026-06-22 12:43:16 -07:00
Linus Torvalds
2e05544060 mm.git review status for mm-hotfixes-stable..mm-nonmm-stable
Everything:
 
 Total patches:       108
 Reviews/patch:       0.84
 Reviewed rate:       75%
 
 Patch series in this merge:
 
 - The 2 patch series "taskstats: fix TGID dead-thread stat retention"
   from Yiyang Chen fixes a taskstats TGID aggregation bug where fields
   added in the TGID query path were not preserved after thread exit, and
   adds a kselftest covering the regression.
 
 - The 2 patch series "lib/tests: string_helpers: Slight improvements"
   from Andy Shevchenko improves lib/tests/string_helpers_kunit.c a little.
 
 - The 2 patch series "lib/base64: decode fixes" from Josh Law addreesses
   minor issues in lib/base64.c.
 
 - The 3 patch series "selftests/filelock: Make output more kselftestish"
   from Mark Brown makes the output from the ofdlocks test a bit easier for
   tooling to work with, and also ignores the generated file.
 
 - The 3 patch series "uaccess: unify inline vs outline
   copy_{from,to}_user() selection" from Yury Norov simplifies the usercopy
   code by removing the selectability of inlining copy_{from,to}_user().
 
 - The 5 patch series "ocfs2: validate inline xattr header consumers"
   from ZhengYuan Huang fixes a number of possible issues in the ocfs2
   xattr code.
 
 - The 8 patch series "lib and lib/cmdline enhancements" from Dmitry
   Antipov provides additional robustness checking in the cmdline handling
   code and its in-kernel testing and selftests.
 
 - The 18 patch series "cleanup the RAID6 P/Q library" from Christoph
   Hellwig cleans up the RAID6 P/Q library to match the recent updates to
   the RAID 5 XOR library and other CRC/crypto libraries.
 
 - The 3 patch series "ocfs2: harden inode validators against forged
   metadata" from Michael Bommarito adds three structural checks to OCFS2
   dinode validation so malformed on-disk fields are rejected before
   ocfs2_populate_inode() copies them into the in-core inode.
 
 - The 2 patch series "lib/raid: replace __get_free_pages() call with
   kmalloc()" from Mike Rapoport cleans up the lib/raid code by using
   kmalloc() in more places.
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Merge tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - "taskstats: fix TGID dead-thread stat retention" (Yiyang Chen)

   Fix a taskstats TGID aggregation bug where fields added in the TGID
   query path were not preserved after thread exit, and adds a kselftest
   covering the regression.

 - "lib/tests: string_helpers: Slight improvements" (Andy Shevchenko)

   Improve lib/tests/string_helpers_kunit.c a little

 - "lib/base64: decode fixes" (Josh Law)

   Address minor issues in lib/base64.c

 - "selftests/filelock: Make output more kselftestish" (Mark Brown)

   Make the output from the ofdlocks test a bit easier for tooling to
   work with. Also ignore the generated file

 - "uaccess: unify inline vs outline copy_{from,to}_user() selection"
   (Yury Norov)

   Simplify the usercopy code by removing the selectability of inlining
   copy_{from,to}_user().

 - "ocfs2: validate inline xattr header consumers" (ZhengYuan Huang)

   Fix a number of possible issues in the ocfs2 xattr code

 - "lib and lib/cmdline enhancements" (Dmitry Antipov)

   Provide additional robustness checking in the cmdline handling code
   and its in-kernel testing and selftests

 - "cleanup the RAID6 P/Q library" (Christoph Hellwig)

   Clean up the RAID6 P/Q library to match the recent updates to the
   RAID 5 XOR library and other CRC/crypto libraries

 - "ocfs2: harden inode validators against forged metadata" (Michael
   Bommarito)

   Add three structural checks to OCFS2 dinode validation so malformed
   on-disk fields are rejected before ocfs2_populate_inode() copies them
   into the in-core inode

 - "lib/raid: replace __get_free_pages() call with kmalloc()" (Mike
   Rapoport)

   Clean up the lib/raid code by using kmalloc() in more places

* tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (108 commits)
  ocfs2: fix circular locking dependency in ocfs2_dio_end_io_write
  ocfs2: fix NULL h_transaction deref in ocfs2_assure_trans_credits
  lib: interval_tree_test: validate benchmark parameters
  ocfs2: avoid moving extents to occupied clusters
  treewide: fix transposed "sign" typos and update spelling.txt
  ocfs2: fix UBSAN array-index-out-of-bounds in ocfs2_sum_rightmost_rec
  fat: reject BPB volumes whose data area starts beyond total sectors
  selftests/uevent: increase __UEVENT_BUFFER_SIZE to avoid ENOBUFS on busy systems
  lib/test_firmware: allocate the configured into_buf size
  fs: efs: remove unneeded debug prints
  checkpatch: cuppress warnings when Reported-by: is followed by Link:
  MAINTAINERS: add Alexander as a kcov reviewer
  mailmap: update Alexander Sverdlin's Email addresses
  fs: fat: inode: replace sprintf() with scnprintf()
  ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent
  ocfs2: fix race between ocfs2_control_install_private() and ocfs2_control_release()
  ocfs2/dlm: require a ref for locking_state debugfs open
  ocfs2: reject FITRIM ranges shorter than a cluster
  ocfs2: validate fast symlink target during inode read
  ocfs2: add journal NULL check in ocfs2_checkpoint_inode()
  ...
2026-06-21 13:20:19 -07:00
Linus Torvalds
08c7183f5b - use software nodes for GPIO code
- cleanups and fixes
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Merge tag 'mips_7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - use software nodes for GPIO code

 - cleanups and fixes

* tag 'mips_7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (41 commits)
  mips: select legacy gpiolib interfaces where used
  MIPS: lib: Remove '.hidden' for local symbols
  MIPS: VDSO: Avoid including .got in dynamic segment
  MIPS: smp: report dying CPU to RCU in stop_this_cpu()
  MIPS: kernel: proc: Delete unnecessary braces in show_cpuinfo()
  MIPS: kernel: proc: Use seq_putc() calls in show_cpuinfo()
  mips: sched: Fix CPUMASK_OFFSTACK memory corruption
  MIPS: mm: Fix out-of-bounds write in maar_res_walk()
  MIPS: ath79: reduce ARCH_DMA_MINALIGN
  mips: dts: ar9132: fix wdt node name
  mips: Remove remaining defconfig references to the pktcdvd driver
  MIPS: mm: remove comment referring to removed CONFIG_MIPS_CMP
  MIPS: alchemy: db1300: switch to static device properties
  MIPS: alchemy: gpr: switch to static device properties
  MIPS: alchemy: db1000: use nodes attached to GPIO chips in properties
  MIPS: alchemy: mtx1: attach software nodes to GPIO chips
  MIPS: alchemy: provide visible function prototypes to board files
  MIPS: alchemy: platform: add missing include
  MIPS: ip22-gio: do not export device release function
  MIPS: ip22-gio: switch to dynamic root device
  ...
2026-06-19 07:46:16 -07:00
Rosen Penev
aeaa898780 MIPS: ath79: reduce ARCH_DMA_MINALIGN
Currently, ath79 SoCs use the default ARCH_DMA_MINALIGN value of 128
bytes defined in mach-generic. This is excessive for these platforms
and leads to significant memory waste in kmalloc.

Override ARCH_DMA_MINALIGN to use L1_CACHE_BYTES, which is 32 bytes for
ath79 SoCs.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-06-15 12:12:24 +02:00
Yury Norov
c02be2ad2b uaccess: unify inline vs outline copy_{from,to}_user() selection
The kernel allows arches to select between inline and outline
implementations of the copy_{from,to}_user() by defining individual
INLINE_COPY_FROM_USER and INLINE_COPY_TO_USER, correspondingly.  However,
all arches enable or disable them always together.

Without the real use-case for one helper being inlined while the other
outlined, having independent controls is excessive and error prone.

Switch the codebase to the single unified INLINE_COPY_USER control.

Link: https://lore.kernel.org/20260425020857.356850-3-ynorov@nvidia.com
Signed-off-by: Yury Norov <ynorov@nvidia.com>
Tested-by: Alice Ryhl <aliceryhl@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Viktor Malik <vmalik@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-05-28 21:24:44 -07:00
Dmitry Torokhov
6d96cc123c MIPS: alchemy: db1300: switch to static device properties
Convert "5way switch" gpio-keys device and smsc911x ethernet controller
to use static device properties instead of bespoke platform data
structures for configuration.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[Bartosz: use platform_device_info::swnode]
Tested-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-05-27 09:52:35 +02:00
Dmitry Torokhov
054f568e05 MIPS: alchemy: mtx1: attach software nodes to GPIO chips
GPIO subsystem is switching the way it locates GPIO chip instances for
GPIO references in software nodes from matching on node names to
identity matching, which necessitates assigning firmware nodes
(software nodes) to GPIO chips.

Move the node definitions for alchemy-gpio1 and alchemy-gpio2 to
arch/misp/alchemy/common/gpiolib.c, register them there, and attach
them to gpio_chip instances. Adjust MTX1 board file to use these nodes.

Note that because nodes need to be registered before they can be used in
PROPERTY_ENTRY_GPIO() we have to do the registration at
postcore_initcall level, otherwise (due to the link order) MTX1 board
initialization code will run first.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[Bartosz: use platform_device_info::swnode]
Tested-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-05-27 09:52:35 +02:00
Johan Hovold
4d9dd68708 MIPS: ip22-gio: do not export device release function
There is no need to export the gio device release function as the
devices are reference counted.

Drop the export along with the unused inline wrapper.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-05-27 09:50:34 +02:00
Qingfang Deng
1dc85756b7 MIPS: ralink: reduce ARCH_DMA_MINALIGN
Currently, Ralink SoCs use the default ARCH_DMA_MINALIGN value of 128
bytes defined in mach-generic. This is excessive for these platforms
and leads to significant memory waste in kmalloc.

Override ARCH_DMA_MINALIGN to use L1_CACHE_BYTES, which is 16 bytes for
RT288X and 32 bytes for other Ralink SoCs.

Signed-off-by: Qingfang Deng <qingfang.deng@linux.dev>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-05-26 16:35:37 +02:00
Maciej W. Rozycki
5ff79e8bdc MIPS: DEC: Ensure 32-bit stack location for o32 prom_printf()
In 64-bit configurations calling any firmware entry points from a kernel
thread other than the initial one will result in a situation where the
stack has been placed in the XKPHYS 64-bit memory segment.

Consequently the stack pointer is no longer a 32-bit value and when the
32-bit firmware code called uses 32-bit ALU operations to manipulate the
stack pointer, the calculated result is incorrect (in fact in the 64-bit
MIPS ISA almost all 32-bit ALU operations will produce an unpredictable
result when executed on 64-bit data) and control goes astray.

This may happen when no final console driver has been enabled in the
configuration and consequently the initial console continues being used
late into bootstrap, or with an upcoming change that will switch the zs
driver to use a platform device, which in turn will make the console
handover happen only after other kernel threads have already been
started, and the kernel will hang at:

  pid_max: default: 32768 minimum: 301

or somewhat later, but always before:

  cblist_init_generic: Setting adjustable number of callback queues.

has been printed.

It seems that only the prom_printf() entry point is affected.  Of all
the other entry points wired only rex_slot_address() and rex_gettcinfo()
are called from a kernel thread other than the initial one, specifically
kernel_init(), and they are leaf functions that do no business with the
stack, having worked with no issue ever since 64-bit support was added
for the platform back in 2002.

To address this issue then, arrange for the stack to be switched in the
o32 wrapper as required for prom_printf() only, by supplying call_o32()
with a pointer to a chunk of initdata space, which is placed in the
CKSEG0 32-bit compatibility segment, observing that prom_printf() is
only called from console output handler and therefore with the console
lock held, implying no need for this code to be reentrant.

Other firmware entry points may be called with interrupts enabled and no
lock held, and may therefore require that call_o32() be reentrant.  They
trigger no issue at this point and "if it ain't broke, don't fix it," so
just leave them alone.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Cc: stable@vger.kernel.org # v2.6.12+
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-05-26 16:35:36 +02:00
Maciej W. Rozycki
0eb7737691 MIPS: DEC: Fix prototypes for halt/reset handlers
Remove a bunch of compilation warnings for halt/reset handlers:

arch/mips/dec/reset.c:22:17: warning: no previous prototype for 'dec_machine_restart' [-Wmissing-prototypes]
   22 | void __noreturn dec_machine_restart(char *command)
      |                 ^~~~~~~~~~~~~~~~~~~
arch/mips/dec/reset.c:27:17: warning: no previous prototype for 'dec_machine_halt' [-Wmissing-prototypes]
   27 | void __noreturn dec_machine_halt(void)
      |                 ^~~~~~~~~~~~~~~~
arch/mips/dec/reset.c:32:17: warning: no previous prototype for 'dec_machine_power_off' [-Wmissing-prototypes]
   32 | void __noreturn dec_machine_power_off(void)
      |                 ^~~~~~~~~~~~~~~~~~~~~
arch/mips/dec/reset.c:38:13: warning: no previous prototype for 'dec_intr_halt'
[-Wmissing-prototypes]
   38 | irqreturn_t dec_intr_halt(int irq, void *dev_id)
      |             ^~~~~~~~~~~~~

(which get promoted to compilation errors with CONFIG_WERROR), by moving
the local prototypes from arch/mips/dec/setup.c to a dedicated header
for arch/mips/dec/reset.c to use as well.  No functional change.

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-05-26 16:35:36 +02:00
Maciej W. Rozycki
a032121b27 MIPS: Make do_IRQ() available for assembly callers
As from commit 8f99a16265 ("MIPS: Tracing: Add IRQENTRY_EXIT section
for MIPS") do_IRQ() is not a macro anymore and can be invoked directly
from assembly code again, however its `asmlinkage' annotation has never
been brought back from the previous removal of the function with commit
187933f236 ("[MIPS] do_IRQ cleanup").

Since calling the function directly from assembly code has a performance
advantage, add the annotation back so that the DEC platform can make use
of this again.

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-05-26 16:35:36 +02:00
Danilo Krummrich
56785dcb2e Linux 7.1-rc5
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Merge tag 'v7.1-rc5' into driver-core-next

We need the driver-core fixes in here as well to build on top of.

Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2026-05-25 02:40:57 +02:00
Alexey Dobriyan
b382754793 driver core: delete useless forward declaration of "struct class"
"struct class" is defined earlier on both cases.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Link: https://patch.msgid.link/6d5937c5-9d41-4cfe-9e42-0946e12dc72d@p183
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-22 13:30:41 +02:00
Masami Hiramatsu (Google)
a494d3c8d5 ring-buffer: Flush and stop persistent ring buffer on panic
On real hardware, panic and machine reboot may not flush hardware cache
to memory. This means the persistent ring buffer, which relies on a
coherent state of memory, may not have its events written to the buffer
and they may be lost. Moreover, there may be inconsistency with the
counters which are used for validation of the integrity of the
persistent ring buffer which may cause all data to be discarded.

To avoid this issue, stop recording of the ring buffer on panic and
flush the cache of the ring buffer's memory.

Fixes: e645535a95 ("tracing: Add option to use memmapped memory for trace boot instance")
Cc: stable@vger.kernel.org
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Ian Rogers <irogers@google.com>
Link: https://patch.msgid.link/177751969602.2136606.12031934362587643488.stgit@mhiramat.tok.corp.google.com
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2026-05-21 08:20:58 -04:00
Eric Wu
90a7073e8a staging: octeon: convert cvmx_pip_port_status_t from typedef to plain struct
The Linux kernel coding style discourages the use of typedefs for
structs. Convert cvmx_pip_port_status_t to a plain 'struct
cvmx_pip_port_status' and update all users across the MIPS Octeon
architecture code and the staging driver.

No functional change.

Signed-off-by: Eric Wu <kunjinkao.jp@gmail.com>
Link: https://patch.msgid.link/20260427155427.668540-8-kunjinkao.jp@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-04 16:21:34 +02:00
Eric Wu
32c681e669 staging: octeon: convert cvmx_pko_port_status_t from typedef to plain struct
The Linux kernel coding style discourages the use of typedefs for
structs. Convert cvmx_pko_port_status_t to a plain 'struct
cvmx_pko_port_status' and update all users across the MIPS Octeon
architecture code and the staging driver.

No functional change.

Signed-off-by: Eric Wu <kunjinkao.jp@gmail.com>
Link: https://patch.msgid.link/20260427155427.668540-7-kunjinkao.jp@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-04 16:21:34 +02:00
Eric Wu
95147c0f62 staging: octeon: convert cvmx_pko_status_t from typedef to plain enum
The Linux kernel coding style discourages the use of typedefs for
enums. Convert cvmx_pko_status_t to a plain 'enum cvmx_pko_status' and
update all users across the MIPS Octeon architecture code and the
staging driver stubs.

No functional change.

Signed-off-by: Eric Wu <kunjinkao.jp@gmail.com>
Link: https://patch.msgid.link/20260427155427.668540-6-kunjinkao.jp@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-04 16:21:34 +02:00
Eric Wu
8b804dad84 staging: octeon: convert cvmx_pko_lock_t from typedef to plain enum
The Linux kernel coding style discourages the use of typedefs for
enums. Convert cvmx_pko_lock_t to a plain 'enum cvmx_pko_lock' and
update all users across the MIPS Octeon architecture code and the
staging driver stubs.

No functional change.

Signed-off-by: Eric Wu <kunjinkao.jp@gmail.com>
Link: https://patch.msgid.link/20260427155427.668540-5-kunjinkao.jp@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-04 16:21:34 +02:00
Eric Wu
3711d19ae0 staging: octeon: convert cvmx_pow_wait_t from typedef to plain enum
The Linux kernel coding style discourages the use of typedefs for
enums. Convert cvmx_pow_wait_t to a plain 'enum cvmx_pow_wait' and
update all users across the MIPS Octeon architecture code and the
staging driver stubs.

No functional change.

Signed-off-by: Eric Wu <kunjinkao.jp@gmail.com>
Link: https://patch.msgid.link/20260427155427.668540-4-kunjinkao.jp@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-04 16:21:34 +02:00
Eric Wu
1397bb27f4 staging: octeon: convert cvmx_helper_interface_mode_t from typedef to plain enum
The Linux kernel coding style discourages the use of typedefs for
enums. Convert cvmx_helper_interface_mode_t to a plain 'enum
cvmx_helper_interface_mode' and update all users across the MIPS
Octeon architecture code and the staging driver stubs.

No functional change.

Signed-off-by: Eric Wu <kunjinkao.jp@gmail.com>
Link: https://patch.msgid.link/20260427155427.668540-3-kunjinkao.jp@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-04 16:21:34 +02:00
Eric Wu
4f44225a9b staging: octeon: convert cvmx_spi_mode_t from typedef to plain enum
The Linux kernel coding style discourages the use of typedefs for
enums. Convert cvmx_spi_mode_t to a plain 'enum cvmx_spi_mode' and
update all users across the MIPS Octeon architecture code and the
staging driver stubs.

This is part of a series converting all remaining enum typedefs in
the octeon subsystem to plain enums, improving compliance with the
kernel coding style.

No functional change.

Signed-off-by: Eric Wu <kunjinkao.jp@gmail.com>
Link: https://patch.msgid.link/20260427155427.668540-2-kunjinkao.jp@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-04 16:21:34 +02:00
Linus Torvalds
d730905bc3 Support for Mobileye EyeQ6Lplus
Cleanups and fixes
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Merge tag 'mips_7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - Support for Mobileye EyeQ6Lplus

 - Cleanups and fixes

* tag 'mips_7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (30 commits)
  MIPS/mtd: Handle READY GPIO in generic NAND platform data
  MIPS/input: Move RB532 button to GPIO descriptors
  MIPS: validate DT bootargs before appending them
  MIPS: Alchemy: Remove unused forward declaration
  MAINTAINERS: Mobileye: Add EyeQ6Lplus files
  MIPS: config: add eyeq6lplus_defconfig
  MIPS: Add Mobileye EyeQ6Lplus evaluation board dts
  MIPS: Add Mobileye EyeQ6Lplus SoC dtsi
  clk: eyeq: Add Mobileye EyeQ6Lplus OLB
  clk: eyeq: Adjust PLL accuracy computation
  clk: eyeq: Skip post-divisor when computing PLL frequency
  pinctrl: eyeq5: Add Mobileye EyeQ6Lplus OLB
  pinctrl: eyeq5: Use match data
  reset: eyeq: Add Mobileye EyeQ6Lplus OLB
  MIPS: Add Mobileye EyeQ6Lplus support
  dt-bindings: soc: mobileye: Add EyeQ6Lplus OLB
  dt-bindings: mips: Add Mobileye EyeQ6Lplus SoC
  MIPS: dts: loongson64g-package: Switch to Loongson UART driver
  mips: pci-mt7620: rework initialization procedure
  mips: pci-mt7620: add more register init values
  ...
2026-04-17 08:53:23 -07:00
Linus Torvalds
334fbe734e mm.git review status for linus..mm-stable
Everything:
 
 Total patches:       368
 Reviews/patch:       1.56
 Reviewed rate:       74%
 
 Excluding DAMON:
 
 Total patches:       316
 Reviews/patch:       1.77
 Reviewed rate:       81%
 
 Excluding DAMON and zram:
 
 Total patches:       306
 Reviews/patch:       1.81
 Reviewed rate:       82%
 
 Excluding DAMON, zram and maple_tree:
 
 Total patches:       276
 Reviews/patch:       2.01
 Reviewed rate:       91%
 
 Significant patch series in this merge:
 
 - The 30 patch series "maple_tree: Replace big node with maple copy"
   from Liam Howlett is mainly prepararatory work for ongoing development
   but it does reduce stack usage and is an improvement.
 
 - The 12 patch series "mm, swap: swap table phase III: remove swap_map"
   from Kairui Song offers memory savings by removing the static swap_map.
   It also yields some CPU savings and implements several cleanups.
 
 - The 2 patch series "mm: memfd_luo: preserve file seals" from Pratyush
   Yadav adds file seal preservation to LUO's memfd code.
 
 - The 2 patch series "mm: zswap: add per-memcg stat for incompressible
   pages" from Jiayuan Chen adds additional userspace stats reportng to
   zswap.
 
 - The 4 patch series "arch, mm: consolidate empty_zero_page" from Mike
   Rapoport implements some cleanups for our handling of ZERO_PAGE() and
   zero_pfn.
 
 - The 2 patch series "mm/kmemleak: Improve scan_should_stop()
   implementation" from Zhongqiu Han provides an robustness improvement and
   some cleanups in the kmemleak code.
 
 - The 4 patch series "Improve khugepaged scan logic" from Vernon Yang
   "improves the khugepaged scan logic and reduces CPU consumption by
   prioritizing scanning tasks that access memory frequently".
 
 - The 2 patch series "Make KHO Stateless" from Jason Miu simplifies
   Kexec Handover by "transitioning KHO from an xarray-based metadata
   tracking system with serialization to a radix tree data structure that
   can be passed directly to the next kernel"
 
 - The 3 patch series "mm: vmscan: add PID and cgroup ID to vmscan
   tracepoints" from Thomas Ballasi and Steven Rostedt enhances vmscan's
   tracepointing.
 
 - The 5 patch series "mm: arch/shstk: Common shadow stack mapping helper
   and VM_NOHUGEPAGE" from Catalin Marinas is a cleanup for the shadow
   stack code: remove per-arch code in favour of a generic implementation.
 
 - The 2 patch series "Fix KASAN support for KHO restored vmalloc
   regions" from Pasha Tatashin fixes a WARN() which can be emitted the KHO
   restores a vmalloc area.
 
 - The 4 patch series "mm: Remove stray references to pagevec" from Tal
   Zussman provides several cleanups, mainly udpating references to "struct
   pagevec", which became folio_batch three years ago.
 
 - The 17 patch series "mm: Eliminate fake head pages from vmemmap
   optimization" from Kiryl Shutsemau simplifies the HugeTLB vmemmap
   optimization (HVO) by changing how tail pages encode their relationship
   to the head page.
 
 - The 2 patch series "mm/damon/core: improve DAMOS quota efficiency for
   core layer filters" from SeongJae Park improves two problematic
   behaviors of DAMOS that makes it less efficient when core layer filters
   are used.
 
 - The 3 patch series "mm/damon: strictly respect min_nr_regions" from
   SeongJae Park improves DAMON usability by extending the treatment of the
   min_nr_regions user-settable parameter.
 
 - The 3 patch series "mm/page_alloc: pcp locking cleanup" from Vlastimil
   Babka is a proper fix for a previously hotfixed SMP=n issue.  Code
   simplifications and cleanups ennsed.
 
 - The 16 patch series "mm: cleanups around unmapping / zapping" from
   David Hildenbrand implements "a bunch of cleanups around unmapping and
   zapping.  Mostly simplifications, code movements, documentation and
   renaming of zapping functions".
 
 - The 6 patch series "support batched checking of the young flag for
   MGLRU" from Baolin Wang supports batched checking of the young flag for
   MGLRU.  It's part cleanups; one benchmark shows large performance
   benefits for arm64.
 
 - The 5 patch series "memcg: obj stock and slab stat caching cleanups"
   from Johannes Weiner provides memcg cleanup and robustness improvements.
 
 - The 5 patch series "Allow order zero pages in page reporting" from
   Yuvraj Sakshith enhances page_reporting's free page reporting - it is
   presently and undesirably order-0 pages when reporting free memory.
 
 - The 6 patch series "mm: vma flag tweaks" from Lorenzo Stoakes is
   cleanup work following from the recent conversion of the VMA flags to a
   bitmap.
 
 - The 10 patch series "mm/damon: add optional debugging-purpose sanity
   checks" from SeongJae Park adds some more developer-facing debug checks
   into DAMON core.
 
 - The 2 patch series "mm/damon: test and document power-of-2
   min_region_sz requirement" from SeongJae Park adds an additional DAMON
   kunit test and makes some adjustments to the addr_unit parameter
   handling.
 
 - The 3 patch series "mm/damon/core: make passed_sample_intervals
   comparisons overflow-safe" from SeongJae Park fixes a hard-to-hit time
   overflow issue in DAMON core.
 
 - The 7 patch series "mm/damon: improve/fixup/update ratio calculation,
   test and documentation" from SeongJae Park is a "batch of misc/minor
   improvements and fixups" for DAMON.
 
 - The 4 patch series "mm: move vma_(kernel|mmu)_pagesize() out of
   hugetlb.c" from David Hildenbrand fixes a possible issue with dax-device
   when CONFIG_HUGETLB=n.  Some code movement was required.
 
 - The 6 patch series "zram: recompression cleanups and tweaks" from
   Sergey Senozhatsky provides "a somewhat random mix of fixups,
   recompression cleanups and improvements" in the zram code.
 
 - The 11 patch series "mm/damon: support multiple goal-based quota
   tuning algorithms" from SeongJae Park extend DAMOS quotas goal
   auto-tuning to support multiple tuning algorithms that users can select.
 
 - The 4 patch series "mm: thp: reduce unnecessary
   start_stop_khugepaged()" from Breno Leitao fixes the khugpaged sysfs
   handling so we no longer spam the logs with reams of junk when
   starting/stopping khugepaged.
 
 - The 3 patch series "mm: improve map count checks" from Lorenzo Stoakes
   provides some cleanups and slight fixes in the mremap, mmap and vma
   code.
 
 - The 5 patch series "mm/damon: support addr_unit on default monitoring
   targets for modules" from SeongJae Park extends the use of DAMON core's
   addr_unit tunable.
 
 - The 5 patch series "mm: khugepaged cleanups and mTHP prerequisites"
   from Nico Pache provides cleanups in the khugepaged and is a base for
   Nico's planned khugepaged mTHP support.
 
 - The 15 patch series "mm: memory hot(un)plug and SPARSEMEM cleanups"
   from David Hildenbrand implements code movement and cleanups in the
   memhotplug and sparsemem code.
 
 - The 2 patch series "mm: remove CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE and
   cleanup CONFIG_MIGRATION" from David Hildenbrand rationalizes some
   memhotplug Kconfig support.
 
 - The 6 patch series "change young flag check functions to return bool"
   from Baolin Wang is "a cleanup patchset to change all young flag check
   functions to return bool".
 
 - The 3 patch series "mm/damon/sysfs: fix memory leak and NULL
   dereference issues" from Josh Law and SeongJae Park fixes a few
   potential DAMON bugs.
 
 - The 25 patch series "mm/vma: convert vm_flags_t to vma_flags_t in vma
   code" from "converts a lot of the existing use of the legacy vm_flags_t
   data type to the new vma_flags_t type which replaces it".  Mainly in the
   vma code.
 
 - The 21 patch series "mm: expand mmap_prepare functionality and usage"
   from Lorenzo Stoakes "expands the mmap_prepare functionality, which is
   intended to replace the deprecated f_op->mmap hook which has been the
   source of bugs and security issues for some time".  Cleanups,
   documentation, extension of mmap_prepare into filesystem drivers.
 
 - The 13 patch series "mm/huge_memory: refactor zap_huge_pmd()" from
   Lorenzo Stoakes simplifies and cleans up zap_huge_pmd().  Additional
   cleanups around vm_normal_folio_pmd() and the softleaf functionality are
   performed.
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Merge tag 'mm-stable-2026-04-13-21-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - "maple_tree: Replace big node with maple copy" (Liam Howlett)

   Mainly prepararatory work for ongoing development but it does reduce
   stack usage and is an improvement.

 - "mm, swap: swap table phase III: remove swap_map" (Kairui Song)

   Offers memory savings by removing the static swap_map. It also yields
   some CPU savings and implements several cleanups.

 - "mm: memfd_luo: preserve file seals" (Pratyush Yadav)

   File seal preservation to LUO's memfd code

 - "mm: zswap: add per-memcg stat for incompressible pages" (Jiayuan
   Chen)

   Additional userspace stats reportng to zswap

 - "arch, mm: consolidate empty_zero_page" (Mike Rapoport)

   Some cleanups for our handling of ZERO_PAGE() and zero_pfn

 - "mm/kmemleak: Improve scan_should_stop() implementation" (Zhongqiu
   Han)

   A robustness improvement and some cleanups in the kmemleak code

 - "Improve khugepaged scan logic" (Vernon Yang)

   Improve khugepaged scan logic and reduce CPU consumption by
   prioritizing scanning tasks that access memory frequently

 - "Make KHO Stateless" (Jason Miu)

   Simplify Kexec Handover by transitioning KHO from an xarray-based
   metadata tracking system with serialization to a radix tree data
   structure that can be passed directly to the next kernel

 - "mm: vmscan: add PID and cgroup ID to vmscan tracepoints" (Thomas
   Ballasi and Steven Rostedt)

   Enhance vmscan's tracepointing

 - "mm: arch/shstk: Common shadow stack mapping helper and
   VM_NOHUGEPAGE" (Catalin Marinas)

   Cleanup for the shadow stack code: remove per-arch code in favour of
   a generic implementation

 - "Fix KASAN support for KHO restored vmalloc regions" (Pasha Tatashin)

   Fix a WARN() which can be emitted the KHO restores a vmalloc area

 - "mm: Remove stray references to pagevec" (Tal Zussman)

   Several cleanups, mainly udpating references to "struct pagevec",
   which became folio_batch three years ago

 - "mm: Eliminate fake head pages from vmemmap optimization" (Kiryl
   Shutsemau)

   Simplify the HugeTLB vmemmap optimization (HVO) by changing how tail
   pages encode their relationship to the head page

 - "mm/damon/core: improve DAMOS quota efficiency for core layer
   filters" (SeongJae Park)

   Improve two problematic behaviors of DAMOS that makes it less
   efficient when core layer filters are used

 - "mm/damon: strictly respect min_nr_regions" (SeongJae Park)

   Improve DAMON usability by extending the treatment of the
   min_nr_regions user-settable parameter

 - "mm/page_alloc: pcp locking cleanup" (Vlastimil Babka)

   The proper fix for a previously hotfixed SMP=n issue. Code
   simplifications and cleanups ensued

 - "mm: cleanups around unmapping / zapping" (David Hildenbrand)

   A bunch of cleanups around unmapping and zapping. Mostly
   simplifications, code movements, documentation and renaming of
   zapping functions

 - "support batched checking of the young flag for MGLRU" (Baolin Wang)

   Batched checking of the young flag for MGLRU. It's part cleanups; one
   benchmark shows large performance benefits for arm64

 - "memcg: obj stock and slab stat caching cleanups" (Johannes Weiner)

   memcg cleanup and robustness improvements

 - "Allow order zero pages in page reporting" (Yuvraj Sakshith)

   Enhance free page reporting - it is presently and undesirably order-0
   pages when reporting free memory.

 - "mm: vma flag tweaks" (Lorenzo Stoakes)

   Cleanup work following from the recent conversion of the VMA flags to
   a bitmap

 - "mm/damon: add optional debugging-purpose sanity checks" (SeongJae
   Park)

   Add some more developer-facing debug checks into DAMON core

 - "mm/damon: test and document power-of-2 min_region_sz requirement"
   (SeongJae Park)

   An additional DAMON kunit test and makes some adjustments to the
   addr_unit parameter handling

 - "mm/damon/core: make passed_sample_intervals comparisons
   overflow-safe" (SeongJae Park)

   Fix a hard-to-hit time overflow issue in DAMON core

 - "mm/damon: improve/fixup/update ratio calculation, test and
   documentation" (SeongJae Park)

   A batch of misc/minor improvements and fixups for DAMON

 - "mm: move vma_(kernel|mmu)_pagesize() out of hugetlb.c" (David
   Hildenbrand)

   Fix a possible issue with dax-device when CONFIG_HUGETLB=n. Some code
   movement was required.

 - "zram: recompression cleanups and tweaks" (Sergey Senozhatsky)

   A somewhat random mix of fixups, recompression cleanups and
   improvements in the zram code

 - "mm/damon: support multiple goal-based quota tuning algorithms"
   (SeongJae Park)

   Extend DAMOS quotas goal auto-tuning to support multiple tuning
   algorithms that users can select

 - "mm: thp: reduce unnecessary start_stop_khugepaged()" (Breno Leitao)

   Fix the khugpaged sysfs handling so we no longer spam the logs with
   reams of junk when starting/stopping khugepaged

 - "mm: improve map count checks" (Lorenzo Stoakes)

   Provide some cleanups and slight fixes in the mremap, mmap and vma
   code

 - "mm/damon: support addr_unit on default monitoring targets for
   modules" (SeongJae Park)

   Extend the use of DAMON core's addr_unit tunable

 - "mm: khugepaged cleanups and mTHP prerequisites" (Nico Pache)

   Cleanups to khugepaged and is a base for Nico's planned khugepaged
   mTHP support

 - "mm: memory hot(un)plug and SPARSEMEM cleanups" (David Hildenbrand)

   Code movement and cleanups in the memhotplug and sparsemem code

 - "mm: remove CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE and cleanup
   CONFIG_MIGRATION" (David Hildenbrand)

   Rationalize some memhotplug Kconfig support

 - "change young flag check functions to return bool" (Baolin Wang)

   Cleanups to change all young flag check functions to return bool

 - "mm/damon/sysfs: fix memory leak and NULL dereference issues" (Josh
   Law and SeongJae Park)

   Fix a few potential DAMON bugs

 - "mm/vma: convert vm_flags_t to vma_flags_t in vma code" (Lorenzo
   Stoakes)

   Convert a lot of the existing use of the legacy vm_flags_t data type
   to the new vma_flags_t type which replaces it. Mainly in the vma
   code.

 - "mm: expand mmap_prepare functionality and usage" (Lorenzo Stoakes)

   Expand the mmap_prepare functionality, which is intended to replace
   the deprecated f_op->mmap hook which has been the source of bugs and
   security issues for some time. Cleanups, documentation, extension of
   mmap_prepare into filesystem drivers

 - "mm/huge_memory: refactor zap_huge_pmd()" (Lorenzo Stoakes)

   Simplify and clean up zap_huge_pmd(). Additional cleanups around
   vm_normal_folio_pmd() and the softleaf functionality are performed.

* tag 'mm-stable-2026-04-13-21-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (369 commits)
  mm: fix deferred split queue races during migration
  mm/khugepaged: fix issue with tracking lock
  mm/huge_memory: add and use has_deposited_pgtable()
  mm/huge_memory: add and use normal_or_softleaf_folio_pmd()
  mm: add softleaf_is_valid_pmd_entry(), pmd_to_softleaf_folio()
  mm/huge_memory: separate out the folio part of zap_huge_pmd()
  mm/huge_memory: use mm instead of tlb->mm
  mm/huge_memory: remove unnecessary sanity checks
  mm/huge_memory: deduplicate zap deposited table call
  mm/huge_memory: remove unnecessary VM_BUG_ON_PAGE()
  mm/huge_memory: add a common exit path to zap_huge_pmd()
  mm/huge_memory: handle buggy PMD entry in zap_huge_pmd()
  mm/huge_memory: have zap_huge_pmd return a boolean, add kdoc
  mm/huge: avoid big else branch in zap_huge_pmd()
  mm/huge_memory: simplify vma_is_specal_huge()
  mm: on remap assert that input range within the proposed VMA
  mm: add mmap_action_map_kernel_pages[_full]()
  uio: replace deprecated mmap hook with mmap_prepare in uio_info
  drivers: hv: vmbus: replace deprecated mmap hook with mmap_prepare
  mm: allow handling of stacked mmap_prepare hooks in more drivers
  ...
2026-04-15 12:59:16 -07:00
Linus Torvalds
f21f7b5162 Update to the VDSO subsystem:
- Make the handling of compat functions consistent and more robust
 
      - Rework the underlying data store so that it is dynamically
        allocated, which allows the conversion of the last holdout SPARC64
        to the generic VDSO implementation
 
      - Rework the SPARC64 VDSO to utilize the generic implementation
 
      - Mop up the left overs of the non-generic VDSO support in the core
        code.
 
      - Expand the VDSO selftest and make them more robust
 
      - Allow time namespaces to be enabled independently of the generic
        VDSO support, which was not possible before due to SPARC64 not
        using it.
 
      - Various cleanups and improvements in the related code.
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Merge tag 'timers-vdso-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull vdso updates from Thomas Gleixner:

 - Make the handling of compat functions consistent and more robust

 - Rework the underlying data store so that it is dynamically allocated,
   which allows the conversion of the last holdout SPARC64 to the
   generic VDSO implementation

 - Rework the SPARC64 VDSO to utilize the generic implementation

 - Mop up the left overs of the non-generic VDSO support in the core
   code

 - Expand the VDSO selftest and make them more robust

 - Allow time namespaces to be enabled independently of the generic VDSO
   support, which was not possible before due to SPARC64 not using it

 - Various cleanups and improvements in the related code

* tag 'timers-vdso-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
  timens: Use task_lock guard in timens_get*()
  timens: Use mutex guard in proc_timens_set_offset()
  timens: Simplify some calls to put_time_ns()
  timens: Add a __free() wrapper for put_time_ns()
  timens: Remove dependency on the vDSO
  vdso/timens: Move functions to new file
  selftests: vDSO: vdso_test_correctness: Add a test for time()
  selftests: vDSO: vdso_test_correctness: Use facilities from parse_vdso.c
  selftests: vDSO: vdso_test_correctness: Handle different tv_usec types
  selftests: vDSO: vdso_test_correctness: Drop SYS_getcpu fallbacks
  selftests: vDSO: vdso_test_gettimeofday: Remove nolibc checks
  Revert "selftests: vDSO: parse_vdso: Use UAPI headers instead of libc headers"
  random: vDSO: Remove ifdeffery
  random: vDSO: Trim vDSO includes
  vdso/datapage: Trim down unnecessary includes
  vdso/datapage: Remove inclusion of gettimeofday.h
  vdso/helpers: Explicitly include vdso/processor.h
  vdso/gettimeofday: Add explicit includes
  random: vDSO: Add explicit includes
  MIPS: vdso: Explicitly include asm/vdso/vdso.h
  ...
2026-04-14 10:53:44 -07:00
Andy Shevchenko
d1d0aa620a MIPS: Alchemy: Remove unused forward declaration
The 'struct gpio' is not used in the code, remove unneeded forward declaration.
This seems to be a leftover for a 5 years.

Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-04-13 15:35:29 +02:00
Lorenzo Stoakes (Oracle)
3a6455d56b mm: convert do_brk_flags() to use vma_flags_t
In order to be able to do this, we need to change VM_DATA_DEFAULT_FLAGS
and friends and update the architecture-specific definitions also.

We then have to update some KSM logic to handle VMA flags, and introduce
VMA_STACK_FLAGS to define the vma_flags_t equivalent of VM_STACK_FLAGS.

We also introduce two helper functions for use during the time we are
converting legacy flags to vma_flags_t values - vma_flags_to_legacy() and
legacy_to_vma_flags().

This enables us to iteratively make changes to break these changes up into
separate parts.

We use these explicitly here to keep VM_STACK_FLAGS around for certain
users which need to maintain the legacy vm_flags_t values for the time
being.

We are no longer able to rely on the simple VM_xxx being set to zero if
the feature is not enabled, so in the case of VM_DROPPABLE we introduce
VMA_DROPPABLE as the vma_flags_t equivalent, which is set to
EMPTY_VMA_FLAGS if the droppable flag is not available.

While we're here, we make the description of do_brk_flags() into a kdoc
comment, as it almost was already.

We use vma_flags_to_legacy() to not need to update the vm_get_page_prot()
logic as this time.

Note that in create_init_stack_vma() we have to replace the BUILD_BUG_ON()
with a VM_WARN_ON_ONCE() as the tested values are no longer build time
available.

We also update mprotect_fixup() to use VMA flags where possible, though we
have to live with a little duplication between vm_flags_t and vma_flags_t
values for the time being until further conversions are made.

While we're here, update VM_SPECIAL to be defined in terms of
VMA_SPECIAL_FLAGS now we have vma_flags_to_legacy().

Finally, we update the VMA tests to reflect these changes.

Link: https://lkml.kernel.org/r/d02e3e45d9a33d7904b149f5604904089fd640ae.1774034900.git.ljs@kernel.org
Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Acked-by: Paul Moore <paul@paul-moore.com>	[SELinux]
Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: "Borislav Petkov (AMD)" <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chengming Zhou <chengming.zhou@linux.dev>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Kees Cook <kees@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Ondrej Mosnacek <omosnace@redhat.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Richard Weinberger <richard@nod.at>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stephen Smalley <stephen.smalley.work@gmail.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vineet Gupta <vgupta@kernel.org>
Cc: WANG Xuerui <kernel@xen0n.name>
Cc: Will Deacon <will@kernel.org>
Cc: xu xin <xu.xin16@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-05 13:53:40 -07:00
Maciej W. Rozycki
8374c2cb83 MIPS: Always record SEGBITS in cpu_data.vmbits
With a 32-bit kernel running on 64-bit MIPS hardware the hardcoded value
of `cpu_vmbits' only records the size of compatibility useg and does not
reflect the size of native xuseg or the complete range of values allowed
in the VPN2 field of TLB entries.

An upcoming change will need the actual VPN2 value range permitted even
in 32-bit kernel configurations, so always include the `vmbits' member
in `struct cpuinfo_mips' and probe for SEGBITS when running on 64-bit
hardware and resorting to the currently hardcoded value of 31 on 32-bit
processors.  No functional change for users of `cpu_vmbits'.

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-04-01 21:53:50 +02:00
Thomas Weißschuh
a9d7e1ea58 MIPS: vdso: Add include guard to asm/vdso/vdso.h
An upcomming patch will lead to the header file being included multiple
times from the same source file.

Add an include guard so this is possible.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://patch.msgid.link/20260227-vdso-header-cleanups-v2-7-35d60acf7410@linutronix.de
2026-03-11 15:12:46 +01:00
Linus Torvalds
6086f349a3 cleanups and fixes
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Merge tag 'mips_7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:
 "Cleanups and fixes"

* tag 'mips_7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (28 commits)
  Revert "clk: microchip: core: allow driver to be compiled with COMPILE_TEST"
  Revert "clk: microchip: fix typo in reference to a config option"
  MIPS: Implement ARCH_HAS_CC_CAN_LINK
  MIPS: rb532: Fix MMIO UART resource registration
  MIPS: Work around LLVM bug when gp is used as global register variable
  MIPS: Loongson64: env: Fixup serial clock-frequency when using LEFI
  MIPS: Loongson2ef: Use pcibios_align_resource() to block io range
  MIPS: Loongson2ef: Register PCI controller in early stage
  clk: microchip: fix typo in reference to a config option
  MIPS: Loongson64: dts: fix phy-related definition of LS7A GMAC
  clk: microchip: core: allow driver to be compiled with COMPILE_TEST
  MIPS: drop unused pic32.h header
  watchdog: pic32-wdt: update include to use pic32.h from platform_data
  watchdog: pic32-dmt: update include to use pic32.h from platform_data
  serial: pic32_uart: update include to use pic32.h from platform_data
  rtc: pic32: update include to use pic32.h from platform_data
  pinctrl: pic32: update include to use pic32.h from platform_data
  mmc: sdhci-pic32: update include to use pic32.h from platform_data
  irqchip/irq-pic32-evic: update include to use pic32.h from platform_data
  clk: microchip: core: update include to use pic32.h from platform_data
  ...
2026-02-16 09:30:44 -08:00
Linus Torvalds
4cff5c05e0 mm.git review status for linus..mm-stable
Everything:
 
 Total patches:       325
 Reviews/patch:       1.39
 Reviewed rate:       72%
 
 Excluding DAMON:
 
 Total patches:       262
 Reviews/patch:       1.63
 Reviewed rate:       82%
 
 Excluding DAMON and zram:
 
 Total patches:       248
 Reviews/patch:       1.72
 Reviewed rate:       86%
 
 - The 14 patch series "powerpc/64s: do not re-activate batched TLB
   flush" from Alexander Gordeev makes arch_{enter|leave}_lazy_mmu_mode()
   nest properly.
 
   It adds a generic enter/leave layer and switches architectures to use
   it.  Various hacks were removed in the process.
 
 - The 7 patch series "zram: introduce compressed data writeback" from
   Richard Chang and Sergey Senozhatsky implements data compression for
   zram writeback.
 
 - The 8 patch series "mm: folio_zero_user: clear page ranges" from David
   Hildenbrand adds clearing of contiguous page ranges for hugepages.
   Large improvements during demand faulting are demonstrated.
 
 - The 2 patch series "memcg cleanups" from Chen Ridong tideis up some
   memcg code.
 
 - The 12 patch series "mm/damon: introduce {,max_}nr_snapshots and
   tracepoint for damos stats" from SeongJae Park improves DAMOS stat's
   provided information, deterministic control, and readability.
 
 - The 3 patch series "selftests/mm: hugetlb cgroup charging: robustness
   fixes" from Li Wang fixes a few issues in the hugetlb cgroup charging
   selftests.
 
 - The 5 patch series "Fix va_high_addr_switch.sh test failure - again"
   from Chunyu Hu addresses several issues in the va_high_addr_switch test.
 
 - The 5 patch series "mm/damon/tests/core-kunit: extend existing test
   scenarios" from Shu Anzai improves the KUnit test coverage for DAMON.
 
 - The 2 patch series "mm/khugepaged: fix dirty page handling for
   MADV_COLLAPSE" from Shivank Garg fixes a glitch in khugepaged which was
   causing madvise(MADV_COLLAPSE) to transiently return -EAGAIN.
 
 - The 29 patch series "arch, mm: consolidate hugetlb early reservation"
   from Mike Rapoport reworks and consolidates a pile of straggly code
   related to reservation of hugetlb memory from bootmem and creation of
   CMA areas for hugetlb.
 
 - The 9 patch series "mm: clean up anon_vma implementation" from Lorenzo
   Stoakes cleans up the anon_vma implementation in various ways.
 
 - The 3 patch series "tweaks for __alloc_pages_slowpath()" from
   Vlastimil Babka does a little streamlining of the page allocator's
   slowpath code.
 
 - The 8 patch series "memcg: separate private and public ID namespaces"
   from Shakeel Butt cleans up the memcg ID code and prevents the
   internal-only private IDs from being exposed to userspace.
 
 - The 6 patch series "mm: hugetlb: allocate frozen gigantic folio" from
   Kefeng Wang cleans up the allocation of frozen folios and avoids some
   atomic refcount operations.
 
 - The 11 patch series "mm/damon: advance DAMOS-based LRU sorting" from
   SeongJae Park improves DAMOS's movement of memory betewwn the active and
   inactive LRUs and adds auto-tuning of the ratio-based quotas and of
   monitoring intervals.
 
 - The 18 patch series "Support page table check on PowerPC" from Andrew
   Donnellan makes CONFIG_PAGE_TABLE_CHECK_ENFORCED work on powerpc.
 
 - The 3 patch series "nodemask: align nodes_and{,not} with underlying
   bitmap ops" from Yury Norov makes nodes_and() and nodes_andnot()
   propagate the return values from the underlying bit operations, enabling
   some cleanup in calling code.
 
 - The 5 patch series "mm/damon: hide kdamond and kdamond_lock from API
   callers" from SeongJae Park cleans up some DAMON internal interfaces.
 
 - The 4 patch series "mm/khugepaged: cleanups and scan limit fix" from
   Shivank Garg does some cleanup work in khupaged and fixes a scan limit
   accounting issue.
 
 - The 24 patch series "mm: balloon infrastructure cleanups" from David
   Hildenbrand goes to town on the balloon infrastructure and its page
   migration function.  Mainly cleanups, also some locking simplification.
 
 - The 2 patch series "mm/vmscan: add tracepoint and reason for
   kswapd_failures reset" from Jiayuan Chen adds additional tracepoints to
   the page reclaim code.
 
 - The 3 patch series "Replace wq users and add WQ_PERCPU to
   alloc_workqueue() users" from Marco Crivellari is part of Marco's
   kernel-wide migration from the legacy workqueue APIs over to the
   preferred unbound workqueues.
 
 - The 9 patch series "Various mm kselftests improvements/fixes" from
   Kevin Brodsky provides various unrelated improvements/fixes for the mm
   kselftests.
 
 - The 5 patch series "mm: accelerate gigantic folio allocation" from
   Kefeng Wang greatly speeds up gigantic folio allocation, mainly by
   avoiding unnecessary work in pfn_range_valid_contig().
 
 - The 5 patch series "selftests/damon: improve leak detection and wss
   estimation reliability" from SeongJae Park improves the reliability of
   two of the DAMON selftests.
 
 - The 8 patch series "mm/damon: cleanup kdamond, damon_call(), damos
   filter and DAMON_MIN_REGION" from SeongJae Park does some cleanup work
   in the core DAMON code.
 
 - The 8 patch series "Docs/mm/damon: update intro, modules, maintainer
   profile, and misc" from SeongJae Park performs maintenance work on the
   DAMON documentation.
 
 - The 10 patch series "mm: add and use vma_assert_stabilised() helper"
   from Lorenzo Stoakes refactors and cleans up the core VMA code.  The
   main aim here is to be able to use the mmap write lock's lockdep state
   to perform various assertions regarding the locking which the VMA code
   requires.
 
 - The 19 patch series "mm, swap: swap table phase II: unify swapin use"
   from Kairui Song removes some old swap code (swap cache bypassing and
   swap synchronization) which wasn't working very well.  Various other
   cleanups and simplifications were made.  The end result is a 20% speedup
   in one benchmark.
 
 - The 8 patch series "enable PT_RECLAIM on more 64-bit architectures"
   from Qi Zheng makes PT_RECLAIM available on 64-bit alpha, loongarch,
   mips, parisc, um,  Various cleanups were performed along the way.
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Merge tag 'mm-stable-2026-02-11-19-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - "powerpc/64s: do not re-activate batched TLB flush" makes
   arch_{enter|leave}_lazy_mmu_mode() nest properly (Alexander Gordeev)

   It adds a generic enter/leave layer and switches architectures to use
   it. Various hacks were removed in the process.

 - "zram: introduce compressed data writeback" implements data
   compression for zram writeback (Richard Chang and Sergey Senozhatsky)

 - "mm: folio_zero_user: clear page ranges" adds clearing of contiguous
   page ranges for hugepages. Large improvements during demand faulting
   are demonstrated (David Hildenbrand)

 - "memcg cleanups" tidies up some memcg code (Chen Ridong)

 - "mm/damon: introduce {,max_}nr_snapshots and tracepoint for damos
   stats" improves DAMOS stat's provided information, deterministic
   control, and readability (SeongJae Park)

 - "selftests/mm: hugetlb cgroup charging: robustness fixes" fixes a few
   issues in the hugetlb cgroup charging selftests (Li Wang)

 - "Fix va_high_addr_switch.sh test failure - again" addresses several
   issues in the va_high_addr_switch test (Chunyu Hu)

 - "mm/damon/tests/core-kunit: extend existing test scenarios" improves
   the KUnit test coverage for DAMON (Shu Anzai)

 - "mm/khugepaged: fix dirty page handling for MADV_COLLAPSE" fixes a
   glitch in khugepaged which was causing madvise(MADV_COLLAPSE) to
   transiently return -EAGAIN (Shivank Garg)

 - "arch, mm: consolidate hugetlb early reservation" reworks and
   consolidates a pile of straggly code related to reservation of
   hugetlb memory from bootmem and creation of CMA areas for hugetlb
   (Mike Rapoport)

 - "mm: clean up anon_vma implementation" cleans up the anon_vma
   implementation in various ways (Lorenzo Stoakes)

 - "tweaks for __alloc_pages_slowpath()" does a little streamlining of
   the page allocator's slowpath code (Vlastimil Babka)

 - "memcg: separate private and public ID namespaces" cleans up the
   memcg ID code and prevents the internal-only private IDs from being
   exposed to userspace (Shakeel Butt)

 - "mm: hugetlb: allocate frozen gigantic folio" cleans up the
   allocation of frozen folios and avoids some atomic refcount
   operations (Kefeng Wang)

 - "mm/damon: advance DAMOS-based LRU sorting" improves DAMOS's movement
   of memory betewwn the active and inactive LRUs and adds auto-tuning
   of the ratio-based quotas and of monitoring intervals (SeongJae Park)

 - "Support page table check on PowerPC" makes
   CONFIG_PAGE_TABLE_CHECK_ENFORCED work on powerpc (Andrew Donnellan)

 - "nodemask: align nodes_and{,not} with underlying bitmap ops" makes
   nodes_and() and nodes_andnot() propagate the return values from the
   underlying bit operations, enabling some cleanup in calling code
   (Yury Norov)

 - "mm/damon: hide kdamond and kdamond_lock from API callers" cleans up
   some DAMON internal interfaces (SeongJae Park)

 - "mm/khugepaged: cleanups and scan limit fix" does some cleanup work
   in khupaged and fixes a scan limit accounting issue (Shivank Garg)

 - "mm: balloon infrastructure cleanups" goes to town on the balloon
   infrastructure and its page migration function. Mainly cleanups, also
   some locking simplification (David Hildenbrand)

 - "mm/vmscan: add tracepoint and reason for kswapd_failures reset" adds
   additional tracepoints to the page reclaim code (Jiayuan Chen)

 - "Replace wq users and add WQ_PERCPU to alloc_workqueue() users" is
   part of Marco's kernel-wide migration from the legacy workqueue APIs
   over to the preferred unbound workqueues (Marco Crivellari)

 - "Various mm kselftests improvements/fixes" provides various unrelated
   improvements/fixes for the mm kselftests (Kevin Brodsky)

 - "mm: accelerate gigantic folio allocation" greatly speeds up gigantic
   folio allocation, mainly by avoiding unnecessary work in
   pfn_range_valid_contig() (Kefeng Wang)

 - "selftests/damon: improve leak detection and wss estimation
   reliability" improves the reliability of two of the DAMON selftests
   (SeongJae Park)

 - "mm/damon: cleanup kdamond, damon_call(), damos filter and
   DAMON_MIN_REGION" does some cleanup work in the core DAMON code
   (SeongJae Park)

 - "Docs/mm/damon: update intro, modules, maintainer profile, and misc"
   performs maintenance work on the DAMON documentation (SeongJae Park)

 - "mm: add and use vma_assert_stabilised() helper" refactors and cleans
   up the core VMA code. The main aim here is to be able to use the mmap
   write lock's lockdep state to perform various assertions regarding
   the locking which the VMA code requires (Lorenzo Stoakes)

 - "mm, swap: swap table phase II: unify swapin use" removes some old
   swap code (swap cache bypassing and swap synchronization) which
   wasn't working very well. Various other cleanups and simplifications
   were made. The end result is a 20% speedup in one benchmark (Kairui
   Song)

 - "enable PT_RECLAIM on more 64-bit architectures" makes PT_RECLAIM
   available on 64-bit alpha, loongarch, mips, parisc, and um. Various
   cleanups were performed along the way (Qi Zheng)

* tag 'mm-stable-2026-02-11-19-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (325 commits)
  mm/memory: handle non-split locks correctly in zap_empty_pte_table()
  mm: move pte table reclaim code to memory.c
  mm: make PT_RECLAIM depends on MMU_GATHER_RCU_TABLE_FREE
  mm: convert __HAVE_ARCH_TLB_REMOVE_TABLE to CONFIG_HAVE_ARCH_TLB_REMOVE_TABLE config
  um: mm: enable MMU_GATHER_RCU_TABLE_FREE
  parisc: mm: enable MMU_GATHER_RCU_TABLE_FREE
  mips: mm: enable MMU_GATHER_RCU_TABLE_FREE
  LoongArch: mm: enable MMU_GATHER_RCU_TABLE_FREE
  alpha: mm: enable MMU_GATHER_RCU_TABLE_FREE
  mm: change mm/pt_reclaim.c to use asm/tlb.h instead of asm-generic/tlb.h
  mm/damon/stat: remove __read_mostly from memory_idle_ms_percentiles
  zsmalloc: make common caches global
  mm: add SPDX id lines to some mm source files
  mm/zswap: use %pe to print error pointers
  mm/vmscan: use %pe to print error pointers
  mm/readahead: fix typo in comment
  mm: khugepaged: fix NR_FILE_PAGES and NR_SHMEM in collapse_file()
  mm: refactor vma_map_pages to use vm_insert_pages
  mm/damon: unify address range representation with damon_addr_range
  mm/cma: replace snprintf with strscpy in cma_new_area
  ...
2026-02-12 11:32:37 -08:00
Linus Torvalds
41f1a08645 Kbuild/Kconfig updates for 7.0
Kbuild changes
 ==============
 
 * Drop '*_probe' pattern from modpost section check allowlist, which hid
   legitimate warnings (Johan Hovold)
 
 * Disable -Wtype-limits altogether, instead of enabling at W=2 (Vincent
   Mailhol)
 
 * Improve UAPI testing to skip testing headers that require a libc when
   CONFIG_CC_CAN_LINK is not set, opening up testing of headers with no
   libc dependencies to more environments (Thomas Weißschuh)
 
 * Update gendwarfksyms documentation with required dependencies (Jihan
   LIN)
 
 * Reject invalid LLVM= values to avoid unintentionally falling back to
   system toolchain (Thomas Weißschuh)
 
 * Add a script to help run the kernel build process in a container for
   consistent environments and testing (Guillaume Tucker)
 
 * Simplify kallsyms by getting rid of the relative base (Ard Biesheuvel)
 
 * Performance and usability improvements to scripts/make_fit.py (Simon
   Glass)
 
 * Minor various clean ups and fixes
 
 Kconfig changes
 ===============
 
 * Move XPM icons to individual files, clearing up GTK deprecation
   warnings (Rostislav Krasny)
 
 * Support
 
     depends on FOO if BAR
 
   as syntactic sugar for
 
     depends on FOO || !BAR' (Nicolas Pitre, Graham Roff)
 
 * Refactor merge_config.sh to use awk over shell/sed/grep, dramatically
   speeding up processing large number of config fragments (Anders
   Roxell, Mikko Rapeli)
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 liOGAQCqMI42YMLqljFcPu3B/3f43xhDBCXAhquPBIMhbgt+aAEAmmo3uMLHKSRV
 XZDKkq13HMMV3Zlmrn5Xk/tzk+hkwwk=
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Merge tag 'kbuild-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

Pull Kbuild/Kconfig updates from Nathan Chancellor:
 "Kbuild:

   - Drop '*_probe' pattern from modpost section check allowlist, which
     hid legitimate warnings (Johan Hovold)

   - Disable -Wtype-limits altogether, instead of enabling at W=2
     (Vincent Mailhol)

   - Improve UAPI testing to skip testing headers that require a libc
     when CONFIG_CC_CAN_LINK is not set, opening up testing of headers
     with no libc dependencies to more environments (Thomas Weißschuh)

   - Update gendwarfksyms documentation with required dependencies
     (Jihan LIN)

   - Reject invalid LLVM= values to avoid unintentionally falling back
     to system toolchain (Thomas Weißschuh)

   - Add a script to help run the kernel build process in a container
     for consistent environments and testing (Guillaume Tucker)

   - Simplify kallsyms by getting rid of the relative base (Ard
     Biesheuvel)

   - Performance and usability improvements to scripts/make_fit.py
     (Simon Glass)

   - Minor various clean ups and fixes

  Kconfig:

   - Move XPM icons to individual files, clearing up GTK deprecation
     warnings (Rostislav Krasny)

   - Support

        depends on FOO if BAR

     as syntactic sugar for

        depends on FOO || !BAR

     (Nicolas Pitre, Graham Roff)

   - Refactor merge_config.sh to use awk over shell/sed/grep,
     dramatically speeding up processing large number of config
     fragments (Anders Roxell, Mikko Rapeli)"

* tag 'kbuild-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (39 commits)
  kbuild: remove dependency of run-command on config
  scripts/make_fit: Compress dtbs in parallel
  scripts/make_fit: Support a few more parallel compressors
  kbuild: Support a FIT_EXTRA_ARGS environment variable
  scripts/make_fit: Move dtb processing into a function
  scripts/make_fit: Support an initial ramdisk
  scripts/make_fit: Speed up operation
  rust: kconfig: Don't require RUST_IS_AVAILABLE for rustc-option
  MAINTAINERS: Add scripts/install.sh into Kbuild entry
  modpost: Amend ppc64 save/restfpr symnames for -Os build
  MIPS: tools: relocs: Ship a definition of R_MIPS_PC32
  streamline_config.pl: remove superfluous exclamation mark
  kbuild: dummy-tools: Add python3
  scripts: kconfig: merge_config.sh: warn on duplicate input files
  scripts: kconfig: merge_config.sh: use awk in checks too
  scripts: kconfig: merge_config.sh: refactor from shell/sed/grep to awk
  kallsyms: Get rid of kallsyms relative base
  mips: Add support for PC32 relocations in vmlinux
  Documentation: dev-tools: add container.rst page
  scripts: add tool to run containerized builds
  ...
2026-02-11 13:40:35 -08:00
Qi Zheng
6c8e95805d mips: mm: enable MMU_GATHER_RCU_TABLE_FREE
On a 64-bit system, madvise(MADV_DONTNEED) may cause a large number of
empty PTE page table pages (such as 100GB+).  To resolve this problem,
first enable MMU_GATHER_RCU_TABLE_FREE to prepare for enabling the
PT_RECLAIM feature, which resolves this problem.

Link: https://lkml.kernel.org/r/0d17f00a724f77aaca2da7c847acd490c3a47571.1769515122.git.zhengqi.arch@bytedance.com
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Hildenbrand (Red Hat) <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Lance Yang <ioworker0@gmail.com>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Magnus Lindholm <linmag7@gmail.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Gleixner <tglx@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: WANG Xuerui <kernel@xen0n.name>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-02-06 15:47:18 -08:00
Rong Zhang
6a00c043af MIPS: Loongson2ef: Register PCI controller in early stage
We are about to set loongson_pci_io_resource.start to 0 and adopt
PCIBIOS_MIN_IO. As the first step, PCI controller needs to be registered
in early stage to make it the root of other resources (e.g., i8259) and
prevent resource conflicts.

Register it in plat_mem_setup() instead of arch_initcall().

Fixes: ae81aad5c2 ("MIPS: PCI: Use pci_enable_resources()")
Cc: stable@vger.kernel.org
Tested-by: Beiyan Yun <root@infi.wang>
Tested-by: Yao Zi <me@ziyao.cc>
Signed-off-by: Rong Zhang <rongrong@oss.cipunited.com>
Acked-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-02-05 10:00:37 +01:00
Brian Masney
89ace07362 MIPS: drop unused pic32.h header
All users of the MIPS pic32.h asm header have been migrated to
linux/platform_data/pic32.h, so let's go ahead and drop the unused asm
variant.

Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-01-30 15:29:08 +01:00