Merge tag 'pwm/for-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "Various cleanups and fixes across the board"

* tag 'pwm/for-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (31 commits)
  pwm: lpc32xx: Remove handling of PWM channels
  pwm: atmel: Simplify using devm functions
  dt-bindings: pwm: brcm,kona-pwm: convert to YAML
  pwm: stmpe: Handle errors when disabling the signal
  pwm: stm32: Simplify using devm_pwmchip_add()
  pwm: stm32: Don't modify HW state in .remove() callback
  pwm: Fix order of freeing resources in pwmchip_remove()
  pwm: ntxec: Use device_set_of_node_from_dev()
  pwm: ntxec: Drop a write-only variable from driver data
  pwm: pxa: Don't reimplement of_device_get_match_data()
  pwm: lpc18xx-sct: Simplify using devm_clk_get_enabled()
  pwm: atmel-tcb: Don't track polarity in driver data
  pwm: atmel-tcb: Unroll atmel_tcb_pwm_set_polarity() into only caller
  pwm: atmel-tcb: Put per-channel data into driver data
  pwm: atmel-tcb: Fix resource freeing in error path and remove
  pwm: atmel-tcb: Harmonize resource allocation order
  pwm: Drop unused #include <linux/radix-tree.h>
  pwm: rz-mtu3: Fix build warning 'num_channel_ios' not described
  pwm: Remove outdated documentation for pwmchip_remove()
  pwm: atmel: Enable clk when pwm already enabled in bootloader
  ...

Pull RTC updates from Alexandre Belloni:
 "Subsystem:

   - Add a way for drivers to tell the core the supported alarm range is
     smaller than the date range. This is not used yet but will be
     useful for the alarmtimers in the next release.

   - fix Wvoid-pointer-to-enum-cast warnings

   - remove redundant of_match_ptr()

   - stop warning for invalid alarms when the alarm is disabled

  Drivers:

   - isl12022: allow setting the trip level for battery level detection

   - pcf2127: add support for PCF2131 and multiple timestamps

   - stm32: time precision improvement, many fixes

   - twl: NVRAM support"

* tag 'rtc-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (73 commits)
  dt-bindings: rtc: ds3231: Remove text binding
  rtc: wm8350: remove unnecessary messages
  rtc: twl: remove unnecessary messages
  rtc: sun6i: remove unnecessary message
  rtc: stop warning for invalid alarms when the alarm is disabled
  rtc: twl: add NVRAM support
  rtc: pcf85363: Allow to wake up system without IRQ
  rtc: m48t86: add DT support for m48t86
  dt-bindings: rtc: Add ST M48T86
  rtc: pcf2127: remove useless check
  rtc: rzn1: Report maximum alarm limit to rtc core
  rtc: ds1305: Report maximum alarm limit to rtc core
  rtc: tps6586x: Report maximum alarm limit to rtc core
  rtc: cmos: Report supported alarm limit to rtc infrastructure
  rtc: cros-ec: Detect and report supported alarm window size
  rtc: Add support for limited alarm timer offsets
  rtc: isl1208: Fix incorrect logic in isl1208_set_xtoscb()
  MAINTAINERS: remove obsolete pattern in RTC SUBSYSTEM section
  rtc: tps65910: Remove redundant dev_warn() and do not check for 0 return after calling platform_get_irq()
  rtc: omap: Do not check for 0 return after calling platform_get_irq()
  ...

Pull i3c updates from Alexandre Belloni:
 "Core:
   - Fix SETDASA when static and dynamic adress are equal
   - Fix cmd_v1 DAA exit criteria

  Drivers:
   - svc: allow probing without any device"

* tag 'i3c/for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  i3c: master: svc: fix probe failure when no i3c device exist
  i3c: master: Fix SETDASA process
  dt-bindings: i3c: Fix description for assigned-address
  i3c: master: svc: Describe member 'saved_regs'
  i3c: master: svc: Do not check for 0 return after calling platform_get_irq()
  i3c/master: cmd_v1: Fix the exit criteria for the daa procedure
  i3c: Explicitly include correct DT includes

Merge tag 'regulator-fix-v6.6-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "A couple of fixes that came in during the merge window, both driver
  specific - one for a bug that came up in testing, one for a bug due
  to a misreading of the datasheet"

* tag 'regulator-fix-v6.6-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: tps6594-regulator: Fix random kernel crash
  regulator: tps6287x: Fix n_voltages

Pull spi fixes from Mark Brown:
 "A couple of fixes for the sun6i driver. The patch to reduce DMA RX to
  single byte width all the time is *hopefully* excessively cautious but
  it's unclear which SoCs are affected so the fix just covers everything
  for safety"

* tag 'spi-fix-v6.6-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain
  spi: sun6i: reduce DMA RX transfer width to single byte

Pull kvm updates from Paolo Bonzini:
 "ARM:

   - Clean up vCPU targets, always returning generic v8 as the preferred
     target

   - Trap forwarding infrastructure for nested virtualization (used for
     traps that are taken from an L2 guest and are needed by the L1
     hypervisor)

   - FEAT_TLBIRANGE support to only invalidate specific ranges of
     addresses when collapsing a table PTE to a block PTE. This avoids
     that the guest refills the TLBs again for addresses that aren't
     covered by the table PTE.

   - Fix vPMU issues related to handling of PMUver.

   - Don't unnecessary align non-stack allocations in the EL2 VA space

   - Drop HCR_VIRT_EXCP_MASK, which was never used...

   - Don't use smp_processor_id() in kvm_arch_vcpu_load(), but the cpu
     parameter instead

   - Drop redundant call to kvm_set_pfn_accessed() in user_mem_abort()

   - Remove prototypes without implementations

  RISC-V:

   - Zba, Zbs, Zicntr, Zicsr, Zifencei, and Zihpm support for guest

   - Added ONE_REG interface for SATP mode

   - Added ONE_REG interface to enable/disable multiple ISA extensions

   - Improved error codes returned by ONE_REG interfaces

   - Added KVM_GET_REG_LIST ioctl() implementation for KVM RISC-V

   - Added get-reg-list selftest for KVM RISC-V

  s390:

   - PV crypto passthrough enablement (Tony, Steffen, Viktor, Janosch)

     Allows a PV guest to use crypto cards. Card access is governed by
     the firmware and once a crypto queue is "bound" to a PV VM every
     other entity (PV or not) looses access until it is not bound
     anymore. Enablement is done via flags when creating the PV VM.

   - Guest debug fixes (Ilya)

  x86:

   - Clean up KVM's handling of Intel architectural events

   - Intel bugfixes

   - Add support for SEV-ES DebugSwap, allowing SEV-ES guests to use
     debug registers and generate/handle #DBs

   - Clean up LBR virtualization code

   - Fix a bug where KVM fails to set the target pCPU during an IRTE
     update

   - Fix fatal bugs in SEV-ES intrahost migration

   - Fix a bug where the recent (architecturally correct) change to
     reinject #BP and skip INT3 broke SEV guests (can't decode INT3 to
     skip it)

   - Retry APIC map recalculation if a vCPU is added/enabled

   - Overhaul emergency reboot code to bring SVM up to par with VMX, tie
     the "emergency disabling" behavior to KVM actually being loaded,
     and move all of the logic within KVM

   - Fix user triggerable WARNs in SVM where KVM incorrectly assumes the
     TSC ratio MSR cannot diverge from the default when TSC scaling is
     disabled up related code

   - Add a framework to allow "caching" feature flags so that KVM can
     check if the guest can use a feature without needing to search
     guest CPUID

   - Rip out the ancient MMU_DEBUG crud and replace the useful bits with
     CONFIG_KVM_PROVE_MMU

   - Fix KVM's handling of !visible guest roots to avoid premature
     triple fault injection

   - Overhaul KVM's page-track APIs, and KVMGT's usage, to reduce the
     API surface that is needed by external users (currently only
     KVMGT), and fix a variety of issues in the process

  Generic:

   - Wrap kvm_{gfn,hva}_range.pte in a union to allow mmu_notifier
     events to pass action specific data without needing to constantly
     update the main handlers.

   - Drop unused function declarations

  Selftests:

   - Add testcases to x86's sync_regs_test for detecting KVM TOCTOU bugs

   - Add support for printf() in guest code and covert all guest asserts
     to use printf-based reporting

   - Clean up the PMU event filter test and add new testcases

   - Include x86 selftests in the KVM x86 MAINTAINERS entry"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (279 commits)
  KVM: x86/mmu: Include mmu.h in spte.h
  KVM: x86/mmu: Use dummy root, backed by zero page, for !visible guest roots
  KVM: x86/mmu: Disallow guest from using !visible slots for page tables
  KVM: x86/mmu: Harden TDP MMU iteration against root w/o shadow page
  KVM: x86/mmu: Harden new PGD against roots without shadow pages
  KVM: x86/mmu: Add helper to convert root hpa to shadow page
  drm/i915/gvt: Drop final dependencies on KVM internal details
  KVM: x86/mmu: Handle KVM bookkeeping in page-track APIs, not callers
  KVM: x86/mmu: Drop @slot param from exported/external page-track APIs
  KVM: x86/mmu: Bug the VM if write-tracking is used but not enabled
  KVM: x86/mmu: Assert that correct locks are held for page write-tracking
  KVM: x86/mmu: Rename page-track APIs to reflect the new reality
  KVM: x86/mmu: Drop infrastructure for multiple page-track modes
  KVM: x86/mmu: Use page-track notifiers iff there are external users
  KVM: x86/mmu: Move KVM-only page-track declarations to internal header
  KVM: x86: Remove the unused page-track hook track_flush_slot()
  drm/i915/gvt: switch from ->track_flush_slot() to ->track_remove_region()
  KVM: x86: Add a new page-track hook to handle memslot deletion
  drm/i915/gvt: Don't bother removing write-protection on to-be-deleted slot
  KVM: x86: Reject memslot MOVE operations if KVMGT is attached
  ...

Pull more s390 updates from Heiko Carstens:

 - A couple of virtual vs physical address confusion fixes

 - Rework locking in dcssblk driver to address a lockdep warning

 - Remove support for "noexec" kernel command line option since there is
   no use case where it would make sense

 - Simplify kernel mapping setup and get rid of quite a bit of code

 - Add architecture specific __set_memory_yy() functions which allow us
   to modify kernel mappings. Unlike the set_memory_xx() variants they
   take void pointer start and end parameters, which allows using them
   without the usual casts, and also to use them on areas larger than
   8TB.

   Note that the set_memory_xx() family comes with an int num_pages
   parameter which overflows with 8TB. This could be addressed by
   changing the num_pages parameter to unsigned long, however requires
   to change all architectures, since the module code expects an int
   parameter (see module_set_memory()).

   This was indeed an issue since for debug_pagealloc() we call
   set_memory_4k() on the whole identity mapping. Therefore address this
   for now with the __set_memory_yy() variant, and address common code
   later

 - Use dev_set_name() and also fix memory leak in zcrypt driver error
   handling

 - Remove unused lsi_mask from airq_struct

 - Add warning for invalid kernel mapping requests

* tag 's390-6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/vmem: do not silently ignore mapping limit
  s390/zcrypt: utilize dev_set_name() ability to use a formatted string
  s390/zcrypt: don't leak memory if dev_set_name() fails
  s390/mm: fix MAX_DMA_ADDRESS physical vs virtual confusion
  s390/airq: remove lsi_mask from airq_struct
  s390/mm: use __set_memory() variants where useful
  s390/set_memory: add __set_memory() variant
  s390/set_memory: generate all set_memory() functions
  s390/mm: improve description of mapping permissions of prefix pages
  s390/amode31: change type of __samode31, __eamode31, etc
  s390/mm: simplify kernel mapping setup
  s390: remove "noexec" option
  s390/vmem: fix virtual vs physical address confusion
  s390/dcssblk: fix lockdep warning
  s390/monreader: fix virtual vs physical address confusion

Pull MIPS updates from Thomas Bogendoerfer:
 "Just cleanups and fixes"

* tag 'mips_6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: TXx9: Do PCI error checks on own line
  arch/mips/configs/*_defconfig cleanup
  MIPS: VDSO: Conditionally export __vdso_gettimeofday()
  Mips: loongson3_defconfig: Enable ast drm driver by default
  mips: remove <asm/export.h>
  mips: replace #include <asm/export.h> with #include <linux/export.h>
  mips: remove unneeded #include <asm/export.h>
  MIPS: Loongson64: Fix more __iomem attributes
  MIPS: loongson32: Remove regs-rtc.h
  MIPS: loongson32: Remove regs-clk.h
  MIPS: More explicit DT include clean-ups
  MIPS: Fixup explicit DT include clean-up
  Revert MIPS: Loongson: Fix build error when make modules_install
  MIPS: Only fiddle with CHECKFLAGS if `need-compiler'
  MIPS: Fix CONFIG_CPU_DADDI_WORKAROUNDS `modules_install' regression
  MIPS: Explicitly include correct DT includes

Pull xtensa updates from Max Filippov:

 - enable MTD XIP support

 - fix base address of the xtensa perf module in newer hardware

* tag 'xtensa-20230905' of https://github.com/jcmvbkbc/linux-xtensa:
  xtensa: add XIP-aware MTD support
  xtensa: PMU: fix base address for the newer hardware

Recently we moved most cleanup from ntfs_put_super() into
ntfs3_kill_sb() as part of a bigger cleanup.  This accidently also moved
dropping inode references stashed in ntfs3's sb->s_fs_info from
@sb->put_super() to @sb->kill_sb().  But generic_shutdown_super()
verifies that there are no busy inodes past sb->put_super().  Fix this
and disentangle dropping inode references from freeing @sb->s_fs_info.

Fixes: a4f64a30 ("ntfs3: free the sbi in ->kill_sb") # mainline only
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Mateusz reports that glibc turns 'fstat()' calls into 'fstatat()', and
that seems to have been going on for quite a long time due to glibc
having tried to simplify its stat logic into just one point.

This turns out to cause completely unnecessary overhead, where we then
go off and allocate the kernel side pathname, and actually look up the
empty path.  Sure, our path lookup is quite optimized, but it still
causes a fair bit of allocation overhead and a couple of completely
unnecessary rounds of lockref accesses etc.

This is all hopefully getting fixed in user space, and there is a patch
floating around for just having glibc use the native fstat() system
call.  But even with the current situation we can at least improve on
things by catching the situation and short-circuiting it.

Note that this is still measurably slower than just a plain 'fstat()',
since just checking that the filename is actually empty is somewhat
expensive due to inevitable user space access overhead from the kernel
(ie verifying pointers, and SMAP on x86).  But it's still quite a bit
faster than actually looking up the path for real.

To quote numers from Mateusz:
 "Sapphire Rapids, will-it-scale, ops/s

  stock fstat	5088199
  patched fstat	7625244	(+49%)
  real fstat	8540383	(+67% / +12%)"

where that 'stock fstat' is the glibc translation of fstat into
fstatat() with an empty path, the 'patched fstat' is with this short
circuiting of the path lookup, and the 'real fstat' is the actual native
fstat() system call with none of this overhead.

Link: https://lore.kernel.org/lkml/20230903204858.lv7i3kqvw6eamhgz@f/


Reported-by: Mateusz Guzik <mjguzik@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull ceph updates from Ilya Dryomov:
 "Mixed with some fixes and cleanups, this brings in reasonably complete
  fscrypt support to CephFS! The list of things which don't work with
  encryption should be fairly short, mostly around the edges: fallocate
  (not supported well in CephFS to begin with), copy_file_range
  (requires re-encryption), non-default striping patterns.

  This was a multi-year effort principally by Jeff Layton with
  assistance from Xiubo Li, Luís Henriques and others, including several
  dependant changes in the MDS, netfs helper library and fscrypt
  framework itself"

* tag 'ceph-for-6.6-rc1' of https://github.com/ceph/ceph-client: (53 commits)
  ceph: make num_fwd and num_retry to __u32
  ceph: make members in struct ceph_mds_request_args_ext a union
  rbd: use list_for_each_entry() helper
  libceph: do not include crypto/algapi.h
  ceph: switch ceph_lookup/atomic_open() to use new fscrypt helper
  ceph: fix updating i_truncate_pagecache_size for fscrypt
  ceph: wait for OSD requests' callbacks to finish when unmounting
  ceph: drop messages from MDS when unmounting
  ceph: update documentation regarding snapshot naming limitations
  ceph: prevent snapshot creation in encrypted locked directories
  ceph: add support for encrypted snapshot names
  ceph: invalidate pages when doing direct/sync writes
  ceph: plumb in decryption during reads
  ceph: add encryption support to writepage and writepages
  ceph: add read/modify/write to ceph_sync_write
  ceph: align data in pages in ceph_sync_write
  ceph: don't use special DIO path for encrypted inodes
  ceph: add truncate size handling support for fscrypt
  ceph: add object version support for sync read
  libceph: allow ceph_osdc_new_request to accept a multi-op read
  ...

Pull input updates from Dmitry Torokhov:

 - a new driver for Azoteq IQS7210A/7211A/E touch controllers

 - support for Azoteq IQS7222D variant added to iqs7222 driver

 - support for touch keys functionality added to Melfas MMS114 driver

 - new hardware IDs added to exc3000 and Goodix drivers

 - xpad driver gained support for GameSir T4 Kaleid Controller

 - a fix for xpad driver to properly support some third-party
   controllers that need a magic packet to start properly

 - a fix for psmouse driver to more reliably switch to RMI4 mode on
   devices that use native RMI4/SMbus protocol

 - a quirk for i8042 for TUXEDO Gemini 17 Gen1/Clevo PD70PN laptops

 - multiple drivers have been updated to make use of devm and other
   newer APIs such as dev_err_probe(), devm_regulator_get_enable(), and
   others.

* tag 'input-for-v6.6-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (83 commits)
  Input: goodix - add support for ACPI ID GDX9110
  Input: rpckbd - fix the return value handle for platform_get_irq()
  Input: tca6416-keypad - switch to using input core's polling features
  Input: tca6416-keypad - convert to use devm_* api
  Input: tca6416-keypad - fix interrupt enable disbalance
  Input: tca6416-keypad - rely on I2C core to set up suspend/resume
  Input: tca6416-keypad - always expect proper IRQ number in i2c client
  Input: lm8323 - convert to use devm_* api
  Input: lm8323 - rely on device core to create kp_disable attribute
  Input: qt2160 - convert to use devm_* api
  Input: qt2160 - do not hard code interrupt trigger
  Input: qt2160 - switch to using threaded interrupt handler
  Input: qt2160 - tweak check for i2c adapter functionality
  Input: psmouse - add delay when deactivating for SMBus mode
  Input: mcs-touchkey - fix uninitialized use of error in mcs_touchkey_probe()
  Input: qt1070 - convert to use devm_* api
  Input: mcs-touchkey - convert to use devm_* api
  Input: amikbd - convert to use devm_* api
  Input: lm8333 - convert to use devm_* api
  Input: mms114 - add support for touch keys
  ...

Pull watchdog updates from Wim Van Sebroeck:

 - add marvell GTI watchdog driver

 - add support for Amlogic-T7 SoCs

 - document the IPQ5018 watchdog compatible

 - enable COMPILE_TEST for more watchdog device drivers

 - core: stop watchdog when executing poweroff command

 - other small improvements and fixes

* tag 'linux-watchdog-6.6-rc1' of git://www.linux-watchdog.org/linux-watchdog: (21 commits)
  watchdog: Add support for Amlogic-T7 SoCs
  watchdog: Add a new struct for Amlogic-GXBB driver
  dt-bindings: watchdog: Add support for Amlogic-T7 SoCs
  dt-bindings: watchdog: qcom-wdt: document IPQ5018
  watchdog: imx2_wdt: Improve dev_crit() message
  watchdog: stm32: Drop unnecessary of_match_ptr()
  watchdog: sama5d4: readout initial state
  watchdog: intel-mid_wdt: add MODULE_ALIAS() to allow auto-load
  watchdog: core: stop watchdog when executing poweroff command
  watchdog: pm8916_wdt: Remove redundant of_match_ptr()
  watchdog: xilinx_wwdt: Use div_u64() in xilinx_wwdt_start()
  watchdog: starfive: Remove #ifdef guards for PM related functions
  watchdog: s3c2410: Fix potential deadlock on &wdt->lock
  watchdog:rit_wdt: Add support for WDIOF_CARDRESET
  dt-bindings: watchdog: ti,rti-wdt: Add support for WDIOF_CARDRESET
  watchdog: Enable COMPILE_TEST for more drivers
  watchdog: advantech_ec_wdt: fix Kconfig dependencies
  watchdog: Explicitly include correct DT includes
  Watchdog: Add marvell GTI watchdog driver
  dt-bindings: watchdog: marvell GTI system watchdog driver
  ...

Pull backlight updates from Lee Jones:
 "New Functionality:

   - Ensure correct includes are present and remove some that are not
     required

   - Drop redundant of_match_ptr() call to cast pointer to NULL

  Bug Fixes:

   - Revert to old (expected) behaviour of initialising PWM state on
     first brightness change

   - Correctly handle / propagate errors

   - Fix 'sometimes-uninitialised' issues"

* tag 'backlight-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: led_bl: Remove redundant of_match_ptr()
  backlight: lp855x: Drop ret variable in brightness change function
  backlight: gpio_backlight: Drop output GPIO direction check for initial power state
  backlight: lp855x: Catch errors when changing brightness
  backlight: lp855x: Initialize PWM state on first brightness change
  backlight: qcom-wled: Explicitly include correct DT includes

The "maxim,ds3231" compatible is described in the rtc-ds1307.yaml, so
there is no need to keep the text bindings version.

Remove the maxim,ds3231.txt file in favor of the rtc-ds1307.yaml binding.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230902134407.2589099-1-festevam@gmail.com


Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

The RTC core already prints a message when the RTC is registered and when
registering fails, it is not necessary to have more in the driver.

Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230827221643.544259-3-alexandre.belloni@bootlin.com


Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

The RTC core already prints a message when the RTC is registered and when
registering fails, it is not necessary to have more in the driver.

Link: https://lore.kernel.org/r/20230827221643.544259-2-alexandre.belloni@bootlin.com


Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

The core already print a message once the rtc is successfully registered,
it is not necessary to print an other one.

Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20230827221643.544259-1-alexandre.belloni@bootlin.com


Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

When the alarm is not enabled, it may never have been set and so we can't
expect it to be valid. This will prevent the apparition of boot messages
like this one:

rtc rtc0: invalid alarm value: 2023-7-8 45:85:85

Link: https://lore.kernel.org/r/20230827221532.543353-1-alexandre.belloni@bootlin.com


Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

I3C masters are expected to support hot-join. This means at initialization
time we might not yet discover any device and this should not be treated
as a fatal error.

During the DAA procedure which happens at probe time, if no device has
joined, all CCC will be NACKed (from a bus perspective). This leads to an
early return with an error code which fails the probe of the master.

Let's avoid this by just telling the core through an I3C_ERROR_M2
return command code that no device was discovered, which is a valid
situation. This way the master will no longer bail out and fail to probe
for a wrong reason.

Cc: stable@vger.kernel.org
Fixes: dd3c5284 ("i3c: master: svc: Add Silvaco I3C master driver")
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230831141324.2841525-1-Frank.Li@nxp.com


Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Pull gfs2 updates from Andreas Gruenbacher:

 - Fix a glock state (non-)transition bug when a dlm request times out
   and is canceled, and we have locking requests that can now be granted
   immediately

 - Various fixes and cleanups in how the logd and quotad daemons are
   woken up and terminated

 - Fix several bugs in the quota data reference counting and shrinking.
   Free quota data objects synchronously in put_super() instead of
   letting call_rcu() run wild

 - Make sure not to deallocate quota data during a withdraw; rather,
   defer quota data deallocation to put_super(). Withdraws can happen in
   contexts in which callers on the stack are holding quota data
   references

 - Many minor quota fixes and cleanups by Bob

 - Update the the mailing list address for gfs2 and dlm. (It's the same
   list for both and we are moving it to gfs2@lists.linux.dev)

 - Various other minor cleanups

* tag 'gfs2-v6.5-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (51 commits)
  MAINTAINERS: Update dlm mailing list
  MAINTAINERS: Update gfs2 mailing list
  gfs2: change qd_slot_count to qd_slot_ref
  gfs2: check for no eligible quota changes
  gfs2: Remove useless assignment
  gfs2: simplify slot_get
  gfs2: Simplify qd2offset
  gfs2: introduce qd_bh_get_or_undo
  gfs2: Remove quota allocation info from quota file
  gfs2: use constant for array size
  gfs2: Set qd_sync_gen in do_sync
  gfs2: Remove useless err set
  gfs2: Small gfs2_quota_lock cleanup
  gfs2: move qdsb_put and reduce redundancy
  gfs2: improvements to sysfs status
  gfs2: Don't try to sync non-changes
  gfs2: Simplify function need_sync
  gfs2: remove unneeded pg_oflow variable
  gfs2: remove unneeded variable done
  gfs2: pass sdp to gfs2_write_buf_to_page
  ...

Random kernel crash detected in TI CICD when regulator driver is added.
This is root caused to irq index increment being done twice causing
irq_data being allocated outside of the range.

- Rework tps6594_request_reg_irqs with correct index increment
- Adjust irq_data kmalloc size to the exact size needed for the device

This has been reported on TI mainline. No public bug report associated.

Reported-by: Udit Kumar <u-kumar1@ti.com>
Fixes: f17ccc5d ("regulator: tps6594-regulator: Add driver for TI TPS6594 regulators")
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
Link: https://lore.kernel.org/r/20230828-tps6594_random_boot_crash_fix-v1-1-f29cbf9ddb37@baylibre.com


Signed-off-by: Mark Brown <broonie@kernel.org>

Pull fuse updates from Miklos Szeredi:

 - Revert non-waiting FLUSH due to a regression

 - Fix a lookup counter leak in readdirplus

 - Add an option to allow shared mmaps in no-cache mode

 - Add btime support and statx intrastructure to the protocol

 - Invalidate positive/negative dentry on failed create/delete

* tag 'fuse-update-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: conditionally fill kstat in fuse_do_statx()
  fuse: invalidate dentry on EEXIST creates or ENOENT deletes
  fuse: cache btime
  fuse: implement statx
  fuse: add ATTR_TIMEOUT macro
  fuse: add STATX request
  fuse: handle empty request_mask in statx
  fuse: write back dirty pages before direct write in direct_io_relax mode
  fuse: add a new fuse init flag to relax restrictions in no cache mode
  fuse: invalidate page cache pages before direct write
  fuse: nlookup missing decrement in fuse_direntplus_link
  Revert "fuse: in fuse_flush only wait if someone wants the return code"

Pull ata updates from Damien Le Moal:

 - Fix OF include file for ata platform drivers (Rob)

 - Simplify various ahci, sata and pata platform drivers using the
   function devm_platform_ioremap_resource() (Yangtao)

 - Cleanup libata time related argument types (e.g. timeouts values)
   (Sergey)

 - Cleanup libata code around error handling as all ata drivers now
   define a error_handler operation (Hannes and Niklas)

 - Remove functions intended for libsas that are in fact unused (Niklas)

 - Change the remove device callback of platform drivers to a null
   function (Uwe)

 - Simplify the pata_imx driver using devm_clk_get_enabled() (Li)

 - Remove old and uinused remnants of the ide code in arm, parisc,
   powerpc, sparc and m68k architectures and associated drivers
   (pata_buddha, pata_falcon and pata_gayle) (Geert)

 - Add missing MODULE_DESCRIPTION() in the sata_gemini and pata_ftide010
   drivers (me)

 - Several fixes for the pata_ep93xx and pata_falcon drivers (Nikita,
   Michael)

 - Add Elkhart Lake AHCI controller support to the ahci driver (Werner)

 - Disable NCQ trim on Micron 1100 drives (Pawel)

* tag 'ata-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: (60 commits)
  ata: libata-core: Disable NCQ_TRIM on Micron 1100 drives
  ata: ahci: Add Elkhart Lake AHCI controller
  ata: pata_falcon: add data_swab option to byte-swap disk data
  ata: pata_falcon: fix IO base selection for Q40
  ata: pata_ep93xx: use soc_device_match for UDMA modes
  ata: pata_ep93xx: fix error return code in probe
  ata: sata_gemini: Add missing MODULE_DESCRIPTION
  ata: pata_ftide010: Add missing MODULE_DESCRIPTION
  m68k: Remove <asm/ide.h>
  ata: pata_gayle: Remove #include <asm/ide.h>
  ata: pata_falcon: Remove #include <asm/ide.h>
  ata: pata_buddha: Remove #include <asm/ide.h>
  asm-generic: Remove ide_iops.h
  sparc: Remove <asm/ide.h>
  powerpc: Remove <asm/ide.h>
  parisc: Remove <asm/ide.h>
  ARM: Remove <asm/ide.h>
  ata: pata_imx: Use helper function devm_clk_get_enabled()
  ata: sata_rcar: Convert to platform remove callback returning void
  ata: sata_mv: Convert to platform remove callback returning void
  ...

Pull mailbox updates from Jassi Brar:

 - qcom: fix incorrect num_chans counting

 - mhu: Remove redundant dev_err

 - bcm: fix comments

 - common changes:
    - convert to use devm_platform_get_and_ioremap_resource
    - correct DT includes

* tag 'mailbox-v6.6' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  mailbox: qcom-ipcc: fix incorrect num_chans counting
  mailbox: Explicitly include correct DT includes
  mailbox: ti-msgmgr: Use devm_platform_ioremap_resource_byname()
  mailbox: platform-mhu: Remove redundant dev_err()
  mailbox: bcm-pdc: Fix some kernel-doc comments
  mailbox: mailbox-test: Fix an error check in mbox_test_probe()
  mailbox: tegra-hsp: Convert to devm_platform_ioremap_resource()
  mailbox: rockchip: Use devm_platform_get_and_ioremap_resource()
  mailbox: mailbox-test: Use devm_platform_get_and_ioremap_resource()
  mailbox: bcm-pdc: Use devm_platform_get_and_ioremap_resource()
  mailbox: bcm-ferxrm-mailbox: Use devm_platform_get_and_ioremap_resource()

Merge tag 'mm-hotfixes-stable-2023-09-05-11-51' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "Seven hotfixes. Four are cc:stable and the remainder pertain to issues
  which were introduced in the current merge window"

* tag 'mm-hotfixes-stable-2023-09-05-11-51' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  sparc64: add missing initialization of folio in tlb_batch_add()
  mm: memory-failure: use rcu lock instead of tasklist_lock when collect_procs()
  revert "memfd: improve userspace warnings for missing exec-related flags".
  rcu: dump vmalloc memory info safely
  mm/vmalloc: add a safer version of find_vm_area() for debug
  tools/mm: fix undefined reference to pthread_once
  memcontrol: ensure memcg acquired by id is properly set up

Pull more tpm updates from Jarkko Sakkinen:
 "Two more bug fixes for tpm_crb, categorically disabling rng for AMD
  CPU's in the tpm_crb driver, discarding the earlier probing approach"

* tag 'tpmdd-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm: Enable hwrng only for Pluton on AMD CPUs
  tpm_crb: Fix an error handling path in crb_acpi_add()

The only interface that allows drivers establishing
liner mappings is vmem_add_mapping(). It does check
a requested range against allowed limits and a call
to modify_pagetable() with an invalid mapping range
is impossible.

Hence, an attempt to map an address range outside of
the identity mapping or vmemmap array could only be
kernel bug.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

With the dev_set_name() prototype it's not obvious that it takes
a formatted string as a parameter. Use its facility instead of
duplicating the same with strncpy()/snprintf() calls.

With this, also prevent return error code to be shadowed.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230831110000.24279-2-andriy.shevchenko@linux.intel.com


Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

When dev_set_name() fails, zcdn_create() doesn't free the newly
allocated resources. Do it.

Fixes: 00fab235 ("s390/zcrypt: multiple zcrypt device nodes support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230831110000.24279-1-andriy.shevchenko@linux.intel.com


Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

MAX_DMA_ADDRESS is defined and treated as a physical address,
whereas it should be virtual.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

Commit 1a10a44d ("sparc64: implement the new page table range API")
missed initialization of folio variable in tlb_batch_add() which causes
boot tests to crash.

Add missing initialization.

Link: https://lkml.kernel.org/r/20230904174350.GF3223@kernel.org


Fixes: 1a10a44d ("sparc64: implement the new page table range API")
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

We found a softlock issue in our test, analyzed the logs, and found that
the relevant CPU call trace as follows:

CPU0:
  _do_fork
    -> copy_process()
      -> write_lock_irq(&tasklist_lock)  //Disable irq,waiting for
      					 //tasklist_lock

CPU1:
  wp_page_copy()
    ->pte_offset_map_lock()
      -> spin_lock(&page->ptl);        //Hold page->ptl
    -> ptep_clear_flush()
      -> flush_tlb_others() ...
        -> smp_call_function_many()
          -> arch_send_call_function_ipi_mask()
            -> csd_lock_wait()         //Waiting for other CPUs respond
	                               //IPI

CPU2:
  collect_procs_anon()
    -> read_lock(&tasklist_lock)       //Hold tasklist_lock
      ->for_each_process(tsk)
        -> page_mapped_in_vma()
          -> page_vma_mapped_walk()
	    -> map_pte()
              ->spin_lock(&page->ptl)  //Waiting for page->ptl

We can see that CPU1 waiting for CPU0 respond IPI，CPU0 waiting for CPU2
unlock tasklist_lock, CPU2 waiting for CPU1 unlock page->ptl. As a result,
softlockup is triggered.

For collect_procs_anon(), what we're doing is task list iteration, during
the iteration, with the help of call_rcu(), the task_struct object is freed
only after one or more grace periods elapse. the logic as follows:

release_task()
  -> __exit_signal()
    -> __unhash_process()
      -> list_del_rcu()

  -> put_task_struct_rcu_user()
    -> call_rcu(&task->rcu, delayed_put_task_struct)

delayed_put_task_struct()
  -> put_task_struct()
  -> if (refcount_sub_and_test())
     	__put_task_struct()
          -> free_task()

Therefore, under the protection of the rcu lock, we can safely use
get_task_struct() to ensure a safe reference to task_struct during the
iteration.

By removing the use of tasklist_lock in task list iteration, we can break
the softlock chain above.

The same logic can also be applied to:
 - collect_procs_file()
 - collect_procs_fsdax()
 - collect_procs_ksm()

Link: https://lkml.kernel.org/r/20230828022527.241693-1-tongtiangen@huawei.com


Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

This warning is telling userspace developers to pass MFD_EXEC and
MFD_NOEXEC_SEAL to memfd_create().  Commit 434ed335 ("memfd: improve
userspace warnings for missing exec-related flags") made the warning more
frequent and visible in the hope that this would accelerate the fixing of
errant userspace.

But the overall effect is to generate far too much dmesg noise.

Fixes: 434ed335 ("memfd: improve userspace warnings for missing exec-related flags")
Reported-by: Damian Tometzki <dtometzki@fedoraproject.org>
Closes: https://lkml.kernel.org/r/ZPFzCSIgZ4QuHsSC@fedora.fritz.box


Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Daniel Verkamp <dverkamp@chromium.org>
Cc: Jeff Xu <jeffxu@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Pull Kbuild updates from Masahiro Yamada:

 - Enable -Wenum-conversion warning option

 - Refactor the rpm-pkg target

 - Fix scripts/setlocalversion to consider annotated tags for rt-kernel

 - Add a jump key feature for the search menu of 'make nconfig'

 - Support Qt6 for 'make xconfig'

 - Enable -Wformat-overflow, -Wformat-truncation, -Wstringop-overflow,
   and -Wrestrict warnings for W=1 builds

 - Replace <asm/export.h> with <linux/export.h> for alpha, ia64, and
   sparc

 - Support DEB_BUILD_OPTIONS=parallel=N for the debian source package

 - Refactor scripts/Makefile.modinst and fix some modules_sign issues

 - Add a new Kconfig env variable to warn symbols that are not defined
   anywhere

 - Show help messages of config fragments in 'make help'

* tag 'kbuild-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (62 commits)
  kconfig: fix possible buffer overflow
  kbuild: Show marked Kconfig fragments in "help"
  kconfig: add warn-unknown-symbols sanity check
  kbuild: dummy-tools: make MPROFILE_KERNEL checks work on BE
  Documentation/llvm: refresh docs
  modpost: Skip .llvm.call-graph-profile section check
  kbuild: support modules_sign for external modules as well
  kbuild: support 'make modules_sign' with CONFIG_MODULE_SIG_ALL=n
  kbuild: move more module installation code to scripts/Makefile.modinst
  kbuild: reduce the number of mkdir calls during modules_install
  kbuild: remove $(MODLIB)/source symlink
  kbuild: move depmod rule to scripts/Makefile.modinst
  kbuild: add modules_sign to no-{compiler,sync-config}-targets
  kbuild: do not run depmod for 'make modules_sign'
  kbuild: deb-pkg: support DEB_BUILD_OPTIONS=parallel=N in debian/rules
  alpha: remove <asm/export.h>
  alpha: replace #include <asm/export.h> with #include <linux/export.h>
  ia64: remove <asm/export.h>
  ia64: replace #include <asm/export.h> with #include <linux/export.h>
  sparc: remove <asm/export.h>
  ...

Pull more MM updates from Andrew Morton:

 - Stefan Roesch has added ksm statistics to /proc/pid/smaps

 - Also a number of singleton patches, mainly cleanups and leftovers

* tag 'mm-stable-2023-09-04-14-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/kmemleak: move up cond_resched() call in page scanning loop
  mm: page_alloc: remove stale CMA guard code
  MAINTAINERS: add rmap.h to mm entry
  rmap: remove anon_vma_link() nommu stub
  proc/ksm: add ksm stats to /proc/pid/smaps
  mm/hwpoison: rename hwp_walk* to hwpoison_walk*
  mm: memory-failure: add PageOffline() check

Pull microblaze updates from Michal Simek:

 - Cleanup DT headers

 - Remove unused zalloc_maybe_bootmem()

 - Make virt_to_pfn() a static inline

* tag 'microblaze-v6.6' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Make virt_to_pfn() a static inline
  microblaze: Remove zalloc_maybe_bootmem()
  microblaze: Explicitly include correct DT includes

Currently, for double invoke call_rcu(), will dump rcu_head objects memory
info, if the objects is not allocated from the slab allocator, the
vmalloc_dump_obj() will be invoke and the vmap_area_lock spinlock need to
be held, since the call_rcu() can be invoked in interrupt context,
therefore, there is a possibility of spinlock deadlock scenarios.

And in Preempt-RT kernel, the rcutorture test also trigger the following
lockdep warning:

BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1, name: swapper/0
preempt_count: 1, expected: 0
RCU nest depth: 1, expected: 1
3 locks held by swapper/0/1:
 #0: ffffffffb534ee80 (fullstop_mutex){+.+.}-{4:4}, at: torture_init_begin+0x24/0xa0
 #1: ffffffffb5307940 (rcu_read_lock){....}-{1:3}, at: rcu_torture_init+0x1ec7/0x2370
 #2: ffffffffb536af40 (vmap_area_lock){+.+.}-{3:3}, at: find_vmap_area+0x1f/0x70
irq event stamp: 565512
hardirqs last  enabled at (565511): [<ffffffffb379b138>] __call_rcu_common+0x218/0x940
hardirqs last disabled at (565512): [<ffffffffb5804262>] rcu_torture_init+0x20b2/0x2370
softirqs last  enabled at (399112): [<ffffffffb36b2586>] __local_bh_enable_ip+0x126/0x170
softirqs last disabled at (399106): [<ffffffffb43fef59>] inet_register_protosw+0x9/0x1d0
Preemption disabled at:
[<ffffffffb58040c3>] rcu_torture_init+0x1f13/0x2370
CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W          6.5.0-rc4-rt2-yocto-preempt-rt+ #15
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.2-0-gea1b7a073390-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x68/0xb0
 dump_stack+0x14/0x20
 __might_resched+0x1aa/0x280
 ? __pfx_rcu_torture_err_cb+0x10/0x10
 rt_spin_lock+0x53/0x130
 ? find_vmap_area+0x1f/0x70
 find_vmap_area+0x1f/0x70
 vmalloc_dump_obj+0x20/0x60
 mem_dump_obj+0x22/0x90
 __call_rcu_common+0x5bf/0x940
 ? debug_smp_processor_id+0x1b/0x30
 call_rcu_hurry+0x14/0x20
 rcu_torture_init+0x1f82/0x2370
 ? __pfx_rcu_torture_leak_cb+0x10/0x10
 ? __pfx_rcu_torture_leak_cb+0x10/0x10
 ? __pfx_rcu_torture_init+0x10/0x10
 do_one_initcall+0x6c/0x300
 ? debug_smp_processor_id+0x1b/0x30
 kernel_init_freeable+0x2b9/0x540
 ? __pfx_kernel_init+0x10/0x10
 kernel_init+0x1f/0x150
 ret_from_fork+0x40/0x50
 ? __pfx_kernel_init+0x10/0x10
 ret_from_fork_asm+0x1b/0x30
 </TASK>

The previous patch fixes this by using the deadlock-safe best-effort
version of find_vm_area.  However, in case of failure print the fact that
the pointer was a vmalloc pointer so that we print at least something.

Link: https://lkml.kernel.org/r/20230904180806.1002832-2-joel@joelfernandes.org


Fixes: 98f18083 ("mm: Make mem_dump_obj() handle vmalloc() memory")
Signed-off-by: Zqiang <qiang.zhang1211@gmail.com>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Reported-by: Zhen Lei <thunder.leizhen@huaweicloud.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

It is unsafe to dump vmalloc area information when trying to do so from
some contexts.  Add a safer trylock version of the same function to do a
best-effort VMA finding and use it from vmalloc_dump_obj().

[applied test robot feedback on unused function fix.]
[applied Uladzislau feedback on locking.]
Link: https://lkml.kernel.org/r/20230904180806.1002832-1-joel@joelfernandes.org


Fixes: 98f18083 ("mm: Make mem_dump_obj() handle vmalloc() memory")
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Reported-by: Zhen Lei <thunder.leizhen@huaweicloud.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Zqiang <qiang.zhang1211@gmail.com>
Cc: <stable@vger.kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>