Merge tag 'loongarch-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

 - Switch to relative exception tables

 - Add unaligned access support

 - Add alternative runtime patching mechanism

 - Add FDT booting support from efi system table

 - Add suspend/hibernation (ACPI S3/S4) support

 - Add basic STACKPROTECTOR support

 - Add ftrace (function tracer) support

 - Update the default config file

* tag 'loongarch-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (24 commits)
  LoongArch: Update Loongson-3 default config file
  LoongArch: modules/ftrace: Initialize PLT at load time
  LoongArch/ftrace: Add HAVE_FUNCTION_GRAPH_RET_ADDR_PTR support
  LoongArch/ftrace: Add HAVE_DYNAMIC_FTRACE_WITH_ARGS support
  LoongArch/ftrace: Add HAVE_DYNAMIC_FTRACE_WITH_REGS support
  LoongArch/ftrace: Add dynamic function graph tracer support
  LoongArch/ftrace: Add dynamic function tracer support
  LoongArch/ftrace: Add recordmcount support
  LoongArch/ftrace: Add basic support
  LoongArch: module: Use got/plt section indices for relocations
  LoongArch: Add basic STACKPROTECTOR support
  LoongArch: Add hibernation (ACPI S4) support
  LoongArch: Add suspend (ACPI S3) support
  LoongArch: Add processing ISA Node in DeviceTree
  LoongArch: Add FDT booting support from efi system table
  LoongArch: Use alternative to optimize libraries
  LoongArch: Add alternative runtime patching mechanism
  LoongArch: Add unaligned access support
  LoongArch: BPF: Add BPF exception tables
  LoongArch: Remove the .fixup section usage
  ...

Pull arch/csky updates from Guo Ren:

 - Revert rseq support - it wasn't ready

 - Add current_stack_pointer support

 - Typo fixup

* tag 'csky-for-linus-6.2-rc1' of https://github.com/c-sky/csky-linux:
  Revert "csky: Add support for restartable sequence"
  Revert "csky: Fixup CONFIG_DEBUG_RSEQ"
  csky: Kconfig: Fix spelling mistake "Meory" -> "Memory"
  csky: add arch support current_stack_pointer

Pull powerpc updates from Michael Ellerman:

 - Add powerpc qspinlock implementation optimised for large system
   scalability and paravirt. See the merge message for more details

 - Enable objtool to be built on powerpc to generate mcount locations

 - Use a temporary mm for code patching with the Radix MMU, so the
   writable mapping is restricted to the patching CPU

 - Add an option to build the 64-bit big-endian kernel with the ELFv2
   ABI

 - Sanitise user registers on interrupt entry on 64-bit Book3S

 - Many other small features and fixes

Thanks to Aboorva Devarajan, Angel Iglesias, Benjamin Gray, Bjorn
Helgaas, Bo Liu, Chen Lifu, Christoph Hellwig, Christophe JAILLET,
Christophe Leroy, Christopher M. Riedl, Colin Ian King, Deming Wang,
Disha Goel, Dmitry Torokhov, Finn Thain, Geert Uytterhoeven, Gustavo A.
R. Silva, Haowen Bai, Joel Stanley, Jordan Niethe, Julia Lawall, Kajol
Jain, Laurent Dufour, Li zeming, Miaoqian Lin, Michael Jeanson, Nathan
Lynch, Naveen N. Rao, Nayna Jain, Nicholas Miehlbradt, Nicholas Piggin,
Pali Rohár, Randy Dunlap, Rohan McLure, Russell Currey, Sathvika
Vasireddy, Shaomin Deng, Stephen Kitt, Stephen Rothwell, Thomas
Weißschuh, Tiezhu Yang, Uwe Kleine-König, Xie Shaowen, Xiu Jianfeng,
XueBing Chen, Yang Yingliang, Zhang Jiaming, ruanjinjie, Jessica Yu,
and Wolfram Sang.

* tag 'powerpc-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (181 commits)
  powerpc/code-patching: Fix oops with DEBUG_VM enabled
  powerpc/qspinlock: Fix 32-bit build
  powerpc/prom: Fix 32-bit build
  powerpc/rtas: mandate RTAS syscall filtering
  powerpc/rtas: define pr_fmt and convert printk call sites
  powerpc/rtas: clean up includes
  powerpc/rtas: clean up rtas_error_log_max initialization
  powerpc/pseries/eeh: use correct API for error log size
  powerpc/rtas: avoid scheduling in rtas_os_term()
  powerpc/rtas: avoid device tree lookups in rtas_os_term()
  powerpc/rtasd: use correct OF API for event scan rate
  powerpc/rtas: document rtas_call()
  powerpc/pseries: unregister VPA when hot unplugging a CPU
  powerpc/pseries: reset the RCU watchdogs after a LPM
  powerpc: Take in account addition CPU node when building kexec FDT
  powerpc: export the CPU node count
  powerpc/cpuidle: Set CPUIDLE_FLAG_POLLING for snooze state
  powerpc/dts/fsl: Fix pca954x i2c-mux node names
  cxl: Remove unnecessary cxl_pci_window_alignment()
  selftests/powerpc: Fix resource leaks
  ...

Merge tag 'mm-nonmm-stable-2022-12-17-20-32' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull fault-injection updates from Andrew Morton:
 "Some fault-injection improvements from Wei Yongjun which enable
  stacktrace filtering on x86_64"

* tag 'mm-nonmm-stable-2022-12-17-20-32' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  fault-injection: make stacktrace filter works as expected
  fault-injection: make some stack filter attrs more readable
  fault-injection: skip stacktrace filtering by default
  fault-injection: allow stacktrace filter for x86-64

Pull more mm updates from Andrew Morton:

 - A few late-breaking minor fixups

 - Two minor feature patches which were awkwardly dependent on mm-nonmm.
   I need to set up a new branch to handle such things.

* tag 'mm-stable-2022-12-17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  MAINTAINERS: zram: zsmalloc: Add an additional co-maintainer
  mm/kmemleak: use %pK to display kernel pointers in backtrace
  mm: use stack_depot for recording kmemleak's backtrace
  maple_tree: update copyright dates for test code
  maple_tree: fix mas_find_rev() comment
  mm/gup_test: free memory allocated via kvcalloc() using kvfree()

Pull x86 mm updates from Dave Hansen:
 "New Feature:

   - Randomize the per-cpu entry areas

  Cleanups:

   - Have CR3_ADDR_MASK use PHYSICAL_PAGE_MASK instead of open coding it

   - Move to "native" set_memory_rox() helper

   - Clean up pmd_get_atomic() and i386-PAE

   - Remove some unused page table size macros"

* tag 'x86_mm_for_6.2_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (35 commits)
  x86/mm: Ensure forced page table splitting
  x86/kasan: Populate shadow for shared chunk of the CPU entry area
  x86/kasan: Add helpers to align shadow addresses up and down
  x86/kasan: Rename local CPU_ENTRY_AREA variables to shorten names
  x86/mm: Populate KASAN shadow for entire per-CPU range of CPU entry area
  x86/mm: Recompute physical address for every page of per-CPU CEA mapping
  x86/mm: Rename __change_page_attr_set_clr(.checkalias)
  x86/mm: Inhibit _PAGE_NX changes from cpa_process_alias()
  x...

Pull MSI fixes from Marc Zyngier:
 "Thomas tasked me with sending out a few urgent fixes after the giant
  MSI rework that landed in 6.2, as both s390 and powerpc ended-up
  suffering from it (they do not use the full core code infrastructure,
  leading to these previously undetected issues):

   - Return MSI_XA_DOMAIN_SIZE as the maximum MSI index when the
     architecture does not make use of irq domains instead of returning
     0, which is pretty limiting.

   - Check for the presence of an irq domain when validating the MSI
     iterator, as s390/powerpc won't have one.

   - Fix powerpc's MSI backends which fail to clear the descriptor's IRQ
     field on teardown, leading to a splat and leaked descriptors"

* tag 'msi-fixes-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms:
  powerpc/msi: Fix deassociation of MSI descriptors
  genirq/msi: Return MSI_XA_DOMAIN_SIZE as the maximum MSI index when no domain is present
  genirq/msi: Check for the presence of an irq domain when validating msi_ctrl

Pull HSI updates from Sebastian Reichel:

 - misc small fixes

* tag 'hsi-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
  HSI: omap_ssi_core: Fix error handling in ssi_init()
  headers: Remove some left-over license text in include/uapi/linux/hsi/
  HSI: omap_ssi_core: fix possible memory leak in ssi_probe()
  HSI: omap_ssi_core: fix unbalanced pm_runtime_disable()
  HSI: ssi_protocol: Fix return type of ssip_pn_xmit()

Pull power supply and reset updates from Sebastian Reichel:

 - bq25890: add charge voltage/current support

 - bd99954: convert to linear range

 - convert all i2c drivers to use probe_new

 - misc fixes and cleanups

* tag 'for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (51 commits)
  power: supply: fix null pointer dereferencing in power_supply_get_battery_info
  power: supply: bq25890: Fix usb-notifier probe and remove races
  power: supply: bq25890: Ensure pump_express_work is cancelled on remove
  power: supply: Fix refcount leak in rk817_charger_probe
  power: supply: bq25890: Only use pdata->regulator_init_data for vbus
  power: supply: ab8500: Fix error handling in ab8500_charger_init()
  power: supply: cw2015: Fix potential null-ptr-deref in cw_bat_probe()
  power: supply: z2_battery: Fix possible memleak in z2_batt_probe()
  power: supply: z2_battery: Convert to i2c's .probe_new()
  power: supply: ucs1002: Convert to i2c's .probe_new()
  power: supply: smb347: Convert to i2c's .probe_new()
  power: supply: sbs-manager: Convert to i2c's .probe_new()
  power: supply: sbs: Convert to i2c's .probe_new()
  power: supply: rt9455: Convert to i2c's .probe_new()
  power: supply: rt5033_battery: Convert to i2c's .probe_new()
  power: supply: max17042_battery: Convert to i2c's .probe_new()
  power: supply: max17040: Convert to i2c's .probe_new()
  power: supply: max14656: Convert to i2c's .probe_new()
  power: supply: ltc4162-l: Convert to i2c's .probe_new()
  power: supply: ltc2941: Convert to i2c's .probe_new()
  ...

Pull watchdog updates from Wim Van Sebroeck:

 - Add Advantech EC watchdog driver

 - Add support for MT6795 Helio X10 watchdog and toprgu

 - Add support for MT8188 watchdog device

 - Remove #ifdef guards for PM related functions

 - Other fixes and improvements

* tag 'linux-watchdog-6.2-rc1' of git://www.linux-watchdog.org/linux-watchdog:
  watchdog: aspeed: Enable pre-timeout interrupt
  watchdog: iTCO_wdt: Set NO_REBOOT if the watchdog is not already running
  watchdog: rn5t618: add support for read out bootstatus
  watchdog: kempld: Remove #ifdef guards for PM related functions
  watchdog: omap: Remove #ifdef guards for PM related functions
  watchdog: twl4030: Remove #ifdef guards for PM related functions
  watchdog: at91rm9200: Remove #ifdef guards for PM related functions
  watchdog: Add Advantech EC watchdog driver
  dt-bindings: watchdog: mediatek,mtk-wdt: Add compatible for MT8173
  dt-bindings: watchdog: mediatek,mtk-wdt: Add compatible for MT6795
  dt-bindings: watchdog: mediatek: Convert mtk-wdt to json-schema
  watchdog: mediatek: mt8188: add wdt support
  dt-bindings: reset: mt8188: add toprgu reset-controller header file
  dt-bindings: watchdog: Add compatible for MediaTek MT8188
  watchdog: mtk_wdt: Add support for MT6795 Helio X10 watchdog and toprgu

Pull LED updates from Pavel Machek:
 "Lee Jones offered his help with maintaining LEDs, thanks a lot.

  Plus, there are some bugfixes as a bonus"

* tag 'leds-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
  leds: MAINTAINERS: include dt-bindings headers
  leds: qcom,pm8058-led: Convert to DT schema
  leds: use sysfs_emit() to instead of scnprintf()
  leds: is31fl319x: Fix setting current limit for is31fl319{0,1,3}
  MAINTAINERS: Add additional co-maintainer to LEDs
  leds: lp5523: fix out-of-bounds bug in lp5523_selftest()
  dt-bindings: leds: Add 'cpuX' to 'linux,default-trigger'
  led: qcom-lpg: Fix sleeping in atomic
  leds: max8997: Don't error if there is no pdata
  leds: lp55xx: remove variable j
  leds-pca955x: Remove the unused function pca95xx_num_led_regs()

Pull rdma fixes from Jason Gunthorpe:
 "Fix two build warnings on 32 bit platforms

  It seems the linux-next CI and 0-day bot are not testing enough 32 bit
  configurations, as soon as you merged the rdma pull request there were
  two instant reports of warnings on these sytems that I would have
  thought should have been covered by time in linux-next

  Anyhow, here are the fixes so people don't hit problems with -Werror"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/siw: Fix pointer cast warning
  RDMA/rxe: Fix compile warnings on 32-bit

Pull gfs2 updtaes from Andreas Gruenbacher:

 - Revert a change to delete_work_func() that has gone wrong in commit
   c412a97c ("gfs2: Use TRY lock in gfs2_inode_lookup for UNLINKED
   inodes").

 - Avoid dequeuing GL_ASYNC glock holders twice by first checking if the
   holder is still queued.

 - gfs2: Always check the inode size of inline inodes when reading in
   inodes to prevent corrupt filesystem images from causing weid errors.

 - Properly handle a race between gfs2_create_inode() and
   gfs2_inode_lookup() that causes insert_inode_locked4() to return
   -EBUSY.

 - Fix and clean up the interaction between gfs2_create_inode() and
   gfs2_evict_inode() by completely handling the inode deallocation and
   destruction in gfs2_evict_inode().

 - Remove support for glock holder auto-demotion as we have no current
   plans of using this feature again.

 - And a few more minor cleanups and clarifications.

* tag 'gfs2-v6.1-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: Remove support for glock holder auto-demotion (2)
  gfs2: Remove support for glock holder auto-demotion
  gfs2: Minor gfs2_try_evict cleanup
  gfs2: Partially revert gfs2_inode_lookup change
  gfs2: Add gfs2_inode_lookup comment
  gfs2: Uninline and improve glock_{set,clear}_object
  gfs2: Simply dequeue iopen glock in gfs2_evict_inode
  gfs2: Clean up after gfs2_create_inode rework
  gfs2: Avoid dequeuing GL_ASYNC glock holders twice
  gfs2: Make gfs2_glock_hold return its glock argument
  gfs2: Always check inode size of inline inodes
  gfs2: Cosmetic gfs2_dinode_{in,out} cleanup
  gfs2: Handle -EBUSY result of insert_inode_locked4
  gfs2: Fix and clean up create / evict interaction
  gfs2: Clean up initialization of "ip" in gfs2_create_inode
  gfs2: Get rid of ghs[] in gfs2_create_inode
  gfs2: Add extra error check in alloc_dinode

Since 2f2940d1

 ("genirq/msi: Remove filter from
msi_free_descs_free_range()"), the core MSI code relies on the
msi_desc->irq field to have been cleared before the descriptor
can be freed, as it indicates that there is no association with
a device anymore.

The irq domain code provides this guarantee, and so does s390,
which is one of the two architectures not using irq domains for
MSIs.

Powerpc, however, is missing this particular requirements,
leading in a splat and leaked MSI descriptors.

Adding the now required irq reset to the handful of powerpc backends
that implement MSIs fixes that particular problem.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/70dab88e-6119-0c12-7c6a-61bcbe239f66@roeck-us.net

The previous build fix left a remaining issue in configurations with
64-bit dma_addr_t on 32-bit architectures:

drivers/infiniband/sw/siw/siw_qp_tx.c: In function 'siw_get_pblpage':
drivers/infiniband/sw/siw/siw_qp_tx.c:32:37: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
   32 |                 return virt_to_page((void *)paddr);
      |                                     ^

Use the same double cast here that the driver uses elsewhere to convert
between dma_addr_t and void*.

Fixes: 0d1b756a ("RDMA/siw: Pass a pointer to virt_to_page()")
Link: https://lore.kernel.org/r/20221215170347.2612403-1-arnd@kernel.org


Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Bernard Metzler <bmt@zurich.ibm.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Pull arm64 fixes from Will Deacon:

 - Fix Kconfig dependencies to re-allow the enabling of function graph
   tracer and shadow call stacks at the same time.

 - Revert the workaround for CPU erratum #2645198 since the CONFIG_
   guards were incorrect and the code has therefore not seen any real
   exposure in -next.

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  Revert "arm64: errata: Workaround possible Cortex-A715 [ESR|FAR]_ELx corruption"
  ftrace: Allow WITH_ARGS flavour of graph tracer with shadow call stack

Merge tag 'perf-tools-for-v6.2-1-2022-12-16' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tools updates from Arnaldo Carvalho de Melo:
 "Libraries:

   - Drop the old copy of libtraceevent in tools/lib/traceevent/ now
     that all major distros ship it from its external repository.

     This is now just another feature detection, emitting a warning when
     the libtraceevent-dev[el] package isn't installed, disabling the
     build of perf features and tools that strictly require parsing
     things from tracefs while keeping the core functionality present
     and working with a subset of the events, the most used ones like
     CPU cycles, hardware cache and also vendor events, etc.

     This was tested with lots of containers for Fedora, Debian,
     OpenSUSE, Alpine Linux, Ubuntu, with cross builds, etc.

  Build:

   - Update to C standard to gnu11, like was done for the kernel.

   - Install the tools/lib/ libraries locally instead of having headers
     searched directl...

This was a mismerge of a semantic conflict in my merge of the driver
core updates, where commit ff62b8e6 ("driver core: make struct
class.devnode() take a const *") changed the devnode function pointer
type.  In the meantime, the drm tree I merged earlier had introduced a
new use of that in commit 8bf48897

 ("drivers/accel: define kconfig
and register a new major").

And of course this happens when I'm traveling with my laptop, and thus
didn't do a full allmodconfig build between every pull and before
pushing my work out.

So I only noticed later as I was doing my full build.

Brown-paper-bag-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes: 71a7507a Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core


Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

On architectures such as s390 that do not use irq domains for MSI,
returning 0 as the maximum MSI index is a bit counter-productive,
as it indicates that no MSI can be allocated. Bad idea.

Instead, return the maximum we're willing to support in the MSI
backing store (MSI_XA_DOMAIN_SIZE), and let the arch code do its
usual thing.

Thanks to Matthew Rosato for fixing the fix.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[maz: commit message]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/87fsdgzpqs.ffs@tglx

For architectures such as s390 and powerpc that do not use
irq domains for MSIs, dev->msi.domain is always NULL, so
the per-device, per-bus MSI domain is also guaranteed to
be NULL.

So checking one without checking the other is bound to result
in a splat, followed by a memory leak as we don't free the MSI
descriptors.

Add the missing check.

Reported-by: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/e570e70d-19bc-101b-0481-ff9a3cab3504@linux.ibm.com

Commit 47e02b94

 ("tools lib perf: Add dependency test to install_headers")
misses the notion of $(DESTDIR_SQ) for install_pkgconfig target, which leads to
error:

  install: cannot create regular file '/usr/lib64/pkgconfig/libperf.pc': Permission denied
  make: *** [Makefile:210: install_pkgconfig] Error 1

Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nicolas Schier <nicolas@fjasle.eu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Rix <trix@redhat.com>
Cc: bpf@vger.kernel.org
Cc: llvm@lists.linux.dev
Link: http://lore.kernel...

Nathan reported that the new per-cpu mm patching oopses if DEBUG_VM is
enabled:

  ------------[ cut here ]------------
  kernel BUG at arch/powerpc/mm/pgtable.c:333!
  Oops: Exception in kernel mode, sig: 5 [#1]
  LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA PowerNV
  Modules linked in:
  CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.1.0-rc2+ #1
  Hardware name: IBM PowerNV (emulated by qemu) POWER9 0x4e1200 opal:v7.0 PowerNV
  ...
  NIP assert_pte_locked+0x180/0x1a0
  LR  assert_pte_locked+0x170/0x1a0
  Call Trace:
    0x60000000 (unreliable)
    patch_instruction+0x618/0x6d0
    arch_prepare_kprobe+0xfc/0x2d0
    register_kprobe+0x520/0x7c0
    arch_init_kprobes+0x28/0x3c
    init_kprobes+0x108/0x184
    do_one_initcall+0x60/0x2e0
    kernel_init_freeable+0x1f0/0x3e0
    kernel_init+0x34/0x1d0
    ret_from_kernel_thread+0x5c/0x64

It's caused by the assert_spin_locked() failing in assert_pte_locked().
The assert fails because the PTE was unlocked in text_area_cpu_up_mm(),
and never relocked.

The PTE page shouldn't be freed, the patching_mm is only used for
patching on this CPU, only that single PTE is ever mapped, and it's only
unmapped at CPU offline.

In fact assert_pte_locked() has a special case to ignore init_mm
entirely, and the patching_mm is more-or-less like init_mm, so possibly
the check could be skipped for patching_mm too.

But for now be conservative, and use the proper PTE accessors at
patching time, so that the PTE lock is held while the PTE is used. That
also avoids the warning in assert_pte_locked().

With that it's no longer necessary to save the PTE in
cpu_patching_context for the mm_patch_enabled() case.

Fixes: c28c15b6

 ("powerpc/code-patching: Use temporary mm for Radix MMU")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221216125913.990972-1-mpe@ellerman.id.au

To resolve a trivial merge conflict with c302378b

 ("libbpf:
Hashmap interface update to allow both long and void* keys/values"),
where a function present upstream was removed in the perf tools
development tree.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Pull driver core updates from Greg KH:
 "Here is the set of driver core and kernfs changes for 6.2-rc1.

  The "big" change in here is the addition of a new macro,
  container_of_const() that will preserve the "const-ness" of a pointer
  passed into it.

  The "problem" of the current container_of() macro is that if you pass
  in a "const *", out of it can comes a non-const pointer unless you
  specifically ask for it. For many usages, we want to preserve the
  "const" attribute by using the same call. For a specific example, this
  series changes the kobj_to_dev() macro to use it, allowing it to be
  used no matter what the const value is. This prevents every subsystem
  from having to declare 2 different individual macros (i.e.
  kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce
  the const value at build time, which having 2 macros would not do
  either.

  The driver for all of this...

Pull char/misc driver updates from Greg KH:
 "Here is the large set of char/misc and other driver subsystem changes
  for 6.2-rc1. Nothing earth-shattering in here at all, just a lot of
  new driver development and minor fixes.

  Highlights include:

   - fastrpc driver updates

   - iio new drivers and updates

   - habanalabs driver updates for new hardware and features

   - slimbus driver updates

   - speakup module parameters added to aid in boot time configuration

   - i2c probe_new conversions for lots of different drivers

   - other small driver fixes and additions

  One semi-interesting change in here is the increase of the number of
  misc dynamic minors available to 1048448 to handle new huge-cpu
  systems.

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

* tag 'char-misc-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (521 commits)
  ...

Pull tty/serial driver updates from Greg KH:
 "Here is the "big" set of tty/serial driver changes for 6.2-rc1.

  As in previous kernel releases, nothing big here at all, just some
  small incremental serial/tty layer cleanups and some individual driver
  additions and fixes. Highlights are:

   - serial helper macros from Jiri Slaby to reduce the amount of
     duplicated code in serial drivers

   - api cleanups and consolidations from Ilpo Järvinen in lots of
     serial drivers

   - the usual set of n_gsm fixes from Daniel Starke as that code gets
     exercised more

   - TIOCSTI is finally able to be disabled if requested (security
     hardening feature from Kees Cook)

   - fsl_lpuart driver fixes and features added

   - other small serial driver additions and fixes

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

* tag 'tty-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (97 commits)
  serial: atmel: don't stop the transmitter when doing PIO
  serial: atmel: cleanup atmel_start+stop_tx()
  tty: serial: fsl_lpuart: switch to new dmaengine_terminate_* API
  serial: sunsab: Fix error handling in sunsab_init()
  serial: altera_uart: fix locking in polling mode
  serial: pch: Fix PCI device refcount leak in pch_request_dma()
  tty: serial: fsl_lpuart: Use pm_ptr() to avoid need to make pm __maybe_unused
  tty: serial: fsl_lpuart: Add runtime pm support
  tty: serial: fsl_lpuart: enable wakeup source for lpuart
  serdev: Replace poll loop by readx_poll_timeout() macro
  tty: synclink_gt: unwind actions in error path of net device open
  serial: stm32: move dma_request_chan() before clk_prepare_enable()
  dt-bindings: serial: xlnx,opb-uartlite: Drop 'contains' from 'xlnx,use-parity'
  serial: pl011: Do not clear RX FIFO & RX interrupt in unthrottle.
  serial: amba-pl011: avoid SBSA UART accessing DMACR register
  tty: serial: altera_jtaguart: remove struct altera_jtaguart
  tty: serial: altera_jtaguart: use uart_port::read_status_mask
  tty: serial: altera_jtaguart: remove unused altera_jtaguart::sigs
  tty: serial: altera_jtaguart: remove flag from altera_jtaguart_rx_chars()
  n_tty: Rename tail to old_tail in n_tty_read()
  ...

Pull staging driver updates from Greg KH:
 "Here is the large set of staging driver changes for 6.2-rc1.

  Another round of cleanups for staging drivers with no big additions.
  Overall more lines were removed than added, always a nice sign, with
  nothing happening in here other than general coding style cleanups and
  minor fixes in the drivers. Full, boring, details are in the shortlog.

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

* tag 'staging-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (253 commits)
  vme: Use root_device_register() not underlined version
  staging: rtl8192e: Fix spelling mistake "ContryIE" -> "CountryIE"
  vme: Fix error not catched in fake_init()
  staging: vme_user: remove multiple blank lines
  staging: r8188eu: use subtype helper in rtw_check_bcn_info
  staging: r8188eu: use subtype helpers in collect_bss_info
  staging: r8188eu: remove unused da parameter
  staging: r8188eu: merge two probereq_p2p functions
  staging: r8188eu: simplify err handling for unknown station
  staging: r8188eu: handle the non-ap case first
  staging: r8188eu: move bBusyTraffic update
  staging: r8188eu: read reason code from ieee80211_mgmt
  staging: r8188eu: use ieee80211_mgmt to parse addresses
  staging: r8188eu: remove a variable
  staging: r8188eu: simplify error handling for missing station
  staging: r8188eu: stop beacon processing if kmalloc fails
  staging: r8188eu: exit if beacon is not from our bss
  staging: r8188eu: simplify update_sta_support_rate params
  staging: r8188eu: use ie buffer in update_beacon_info
  staging: r8188eu: pass only ies to process_p2p_ps_ie
  ...

Pull USB and Thunderbolt driver updates from Greg KH:
 "Here is the large set of USB and Thunderbolt driver changes for
  6.2-rc1. Overall, thanks to the removal of a driver, more lines were
  removed than added, a nice change. Highlights include:

   - removal of the sisusbvga driver that was not used by anyone anymore

   - minor thunderbolt driver changes and tweaks

   - chipidea driver updates

   - usual set of typec driver features and hardware support added

   - musb minor driver fixes

   - fotg210 driver fixes, bringing that hardware back from the "dead"

   - minor dwc3 driver updates

   - addition, and then removal, of a list.h helper function for many
     USB and other subsystem drivers, that ended up breaking the build.
     That will come back for 6.3-rc1, it missed this merge window.

   - usual xhci updates and enhancements

   - usb-serial driver updates and support for new devices

   - other minor USB driver updates

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

* tag 'usb-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (153 commits)
  usb: gadget: uvc: Rename bmInterfaceFlags -> bmInterlaceFlags
  usb: dwc2: power on/off phy for peripheral mode in dual-role mode
  usb: dwc2: disable lpm feature on Rockchip SoCs
  dt-bindings: usb: mtk-xhci: add support for mt7986
  usb: dwc3: core: defer probe on ulpi_read_id timeout
  usb: ulpi: defer ulpi_register on ulpi_read_id timeout
  usb: misc: onboard_usb_hub: add Genesys Logic GL850G hub support
  dt-bindings: usb: Add binding for Genesys Logic GL850G hub controller
  dt-bindings: vendor-prefixes: add Genesys Logic
  usb: fotg210-udc: fix potential memory leak in fotg210_udc_probe()
  usb: typec: tipd: Set mode of operation for USB Type-C connector
  usb: gadget: udc: drop obsolete dependencies on COMPILE_TEST
  usb: musb: remove extra check in musb_gadget_vbus_draw
  usb: gadget: uvc: Prevent buffer overflow in setup handler
  usb: dwc3: qcom: Fix memory leak in dwc3_qcom_interconnect_init
  usb: typec: wusb3801: fix fwnode refcount leak in wusb3801_probe()
  usb: storage: Add check for kcalloc
  USB: sisusbvga: use module_usb_driver()
  USB: sisusbvga: rename sisusb.c to sisusbvga.c
  USB: sisusbvga: remove console support
  ...

Pull exfat update from Namjae Jeon:

 - simplify and remove some redundant directory entry code

 - optimize the size of exfat_entry_set_cache and its allocation policy

 - improve the performance for creating files and directories

* tag 'exfat-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
  exfat: reuse exfat_find_location() to simplify exfat_get_dentry_set()
  exfat: fix overflow in sector and cluster conversion
  exfat: remove i_size_write() from __exfat_truncate()
  exfat: remove argument 'size' from exfat_truncate()
  exfat: remove unnecessary arguments from exfat_find_dir_entry()
  exfat: remove unneeded codes from __exfat_rename()
  exfat: remove call ilog2() from exfat_readdir()
  exfat: replace magic numbers with Macros
  exfat: rename exfat_free_dentry_set() to exfat_put_dentry_set()
  exfat: move exfat_entry_set_cache from heap to stack
  exfat: support dynamic allo...

Pull writeback updates from Jens Axboe:

 - Sanity check adding freed inodes to lists (Jan)

 - Removal of an old unused define (Miaohe)

* tag 'for-6.2/writeback-2022-12-12' of git://git.kernel.dk/linux:
  writeback: remove obsolete macro EXPIRE_DIRTY_ATIME
  writeback: Add asserts for adding freed inode to lists

Pull tracing updates from Steven Rostedt:

 - Add options to the osnoise tracer:
      - 'panic_on_stop' option that panics the kernel if osnoise is
        greater than some user defined threshold.
      - 'preempt' option, to test noise while preemption is disabled
      - 'irq' option, to test noise when interrupts are disabled

 - Add .percent and .graph suffix to histograms to give different
   outputs

 - Add nohitcount to disable showing hitcount in histogram output

 - Add new __cpumask() to trace event fields to annotate that a unsigned
   long array is a cpumask to user space and should be treated as one.

 - Add trace_trigger kernel command line parameter to enable trace event
   triggers at boot up. Useful to trace stack traces, disable tracing
   and take snapshots.

 - Fix x86/kmmio mmio tracer to work with the updates to lockdep

 - Unify the panic and die notifiers

 - Add back ftrace_expect reference...

stacktrace filter is checked after others, such as fail-nth, interval and
probability.  This make it doesn't work well as expected.

Fix to running stacktrace filter before other filters.  It will speed up
fault inject testing for driver modules.

Link: https://lkml.kernel.org/r/20220817080332.1052710-5-weiyongjun1@huawei.com


Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Isabella Basso <isabbasso@riseup.net>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Attributes of stack filter are show as unsigned decimal, such as
'require-start', 'require-end'.  This patch change to show them as
unsigned hexadecimal for more readable.

Before:
  $ echo 0xffffffffc0257000 > /sys/kernel/debug/failslab/require-start
  $ cat /sys/kernel/debug/failslab/require-start
  18446744072638263296

After:
  $ echo 0xffffffffc0257000 > /sys/kernel/debug/failslab/require-start
  $ cat /sys/kernel/debug/failslab/require-start
  0xffffffffc0257000

[wangyufen@huawei.com: use debugfs_create_xul() instead of debugfs_create_xl()]
  Link: https://lkml.kernel.org/r/1664331299-4976-1-git-send-email-wangyufen@huawei.com
Link: https://lkml.kernel.org/r/20220817080332.1052710-4-weiyongjun1@huawei.com


Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Isabella Basso <isabbasso@riseup.net>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

If FAULT_INJECTION_STACKTRACE_FILTER is enabled, the depth is default to
32.  This means fail_stacktrace() will iter each entry's stacktrace, even
if filter is not configured.

This patch changes to quick return from fail_stacktrace() if stacktrace
filter is not set.

Link: https://lkml.kernel.org/r/20220817080332.1052710-3-weiyongjun1@huawei.com


Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Isabella Basso <isabbasso@riseup.net>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

This patchset allow fault injection to run on x86_64 and makes stacktrace
filter work as expected.  With this, we can test a device driver module
with fault injection more easily.


This patch (of 4):

FAULT_INJECTION_STACKTRACE_FILTER option was apparently disallowed on
x86_64 because of problems with the stack unwinder:

    commit 6d690dca
    Author: Akinobu Mita <akinobu.mita@gmail.com>
    Date:   Sat May 12 10:36:53 2007 -0700

        fault injection: disable stacktrace filter for x86-64

However, there is no problems whatsoever with this today. Let's allow
it again.

Link: https://lkml.kernel.org/r/20220817080332.1052710-1-weiyongjun1@huawei.com
Link: https://lkml.kernel.org/r/20220817080332.1052710-2-weiyongjun1@huawei.com


Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Isabella Basso <isabbasso@riseup.net>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Move Sergey to co-maintainer for zram/zsmalloc since he has helped to
contribute/review those areas actively for eight years, which is quite
helpful.  Since Nitin has been inactive for several years, it's time to
move his name into CREDITS.

Link: https://lkml.kernel.org/r/20221213170731.796121-1-minchan@kernel.org


Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Currently, %p is used to display kernel pointers in backtrace which result
in a hashed value that is not usable to correlate the address for debug. 
Use %pK which will respect the kptr_restrict configuration value and thus
allow to extract meaningful information from the backtrace.

Link: https://lkml.kernel.org/r/20221108094322.73492-1-clement.leger@bootlin.com


Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Using stack_depot to record kmemleak's backtrace which has been
implemented on slub for reducing redundant information.

[akpm@linux-foundation.org: fix build - remove now-unused __save_stack_trace()]
[zhaoyang.huang@unisoc.com: v3]
  Link: https://lkml.kernel.org/r/1667101354-4669-1-git-send-email-zhaoyang.huang@unisoc.com
[akpm@linux-foundation.org: fix v3 layout oddities]
[akpm@linux-foundation.org: coding-style cleanups]
Link: https://lkml.kernel.org/r/1666864224-27541-1-git-send-email-zhaoyang.huang@unisoc.com


Signed-off-by: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: ke.wang <ke.wang@unisoc.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zhaoyang Huang <huangzhaoyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Add the span to the year of the development.

Link: https://lkml.kernel.org/r/20221025173709.2718725-1-Liam.Howlett@oracle.com


Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mas_find_rev() uses mas_prev_entry(), not mas_next_entry(), correct comment.

Link: https://lkml.kernel.org/r/20221025173756.2719616-1-Liam.Howlett@oracle.com


Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>