Minh Yuan reported a concurrency use-after-free issue in the floppy code
between raw_cmd_ioctl and seek_interrupt.

[ It turns out this has been around, and that others have reported the
  KASAN splats over the years, but Minh Yuan had a reproducer for it and
  so gets primary credit for reporting it for this fix   - Linus ]

The problem is, this driver tends to break very easily and nowadays,
nobody is expected to use FDRAWCMD anyway since it was used to
manipulate non-standard formats.  The risk of breaking the driver is
higher than the risk presented by this race, and accessing the device
requires privileges anyway.

Let's just add a config option to completely disable this ioctl and
leave it disabled by default.  Distros shouldn't use it, and only those
running on antique hardware might need to enable it.

Link: https://lore.kernel.org/all/000000000000b71cdd05d703f6bf@google.com/
Link: https://lore.kernel.org/lkml/CAKcFiNC=MfYVW-Jt9A3=FPJpTwCD2PL_ULNCpsCVE5s8ZeBQgQ@mail.gmail.com
Link: https://lore.kernel.org/all/CAEAjamu1FRhz6StCe_55XY5s389ZP_xmCF69k987En+1z53=eg@mail.gmail.comReported-by: Minh Yuan <yuanmingbuaa@gmail.com>
Reported-by: syzbot+8e8958586909d62b6840@syzkaller.appspotmail.com
Reported-by: cruise k <cruise4k@gmail.com>
Reported-by: Kyungtae Kim <kt0755@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org>
Tested-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull pin control fixes from Linus Walleij:

 - Fix some register offsets on Intel Alderlake

 - Fix the order the UFS and SDC pins on Qualcomm SM6350

 - Fix a build error in Mediatek Moore.

 - Fix a pin function table in the Sunplus SP7021.

 - Fix some Kconfig and static keywords on the Samsung Tesla FSD SoC.

 - Fix up the EOI function for edge triggered IRQs and keep the block
   clock enabled for level IRQs in the STM32 driver.

 - Fix some bits and order in the Rockchip RK3308 driver.

 - Handle the errorpath in the Pistachio driver probe() properly.

* tag 'pinctrl-v5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: pistachio: fix use of irq_of_parse_and_map()
  pinctrl: stm32: Keep pinctrl block clock enabled when LEVEL IRQ requested
  pinctrl: rockchip: sort the rk3308_mux_recalced_data entries
  pinctrl: rockchip: fix RK3308 pinmux bits
  pinctrl: stm32: Do not call stm32_gpio_get() for edge triggered IRQs in EOI
  pinctrl: Fix an error in pin-function table of SP7021
  pinctrl: samsung: fix missing GPIOLIB on ARM64 Exynos config
  pinctrl: mediatek: moore: Fix build error
  pinctrl: qcom: sm6350: fix order of UFS & SDC pins
  pinctrl: alderlake: Fix register offsets for ADL-N variant
  pinctrl: samsung: staticize fsd_pin_ctrl

Pull fbdev fixes and updates from Helge Deller:
 "A bunch of outstanding fbdev patches - all trivial and small"

* tag 'for-5.18/fbdev-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  video: fbdev: clps711x-fb: Use syscon_regmap_lookup_by_phandle
  video: fbdev: mmp: replace usage of found with dedicated list iterator variable
  video: fbdev: sh_mobile_lcdcfb: Remove sh_mobile_lcdc_check_var() declaration
  video: fbdev: i740fb: Error out if 'pixclock' equals zero
  video: fbdev: i740fb: use memset_io() to clear screen
  video: fbdev: s3fb: Error out if 'pixclock' equals zero
  video: fbdev: arkfb: Error out if 'pixclock' equals zero
  video: fbdev: tridentfb: Error out if 'pixclock' equals zero
  video: fbdev: vt8623fb: Error out if 'pixclock' equals zero
  video: fbdev: kyro: Error out if 'lineclock' equals zero
  video: fbdev: neofb: Fix the check of 'var->pixclock'
  video: fbdev: imxfb: Fix missing of_node_put in imxfb_probe
  video: fbdev: omap: Make it CCF clk API compatible
  video: fbdev: aty/matrox/...: Prepare cleanup of powerpc's asm/prom.h
  video: fbdev: pm2fb: Fix a kernel-doc formatting issue
  linux/fb.h: Spelling s/palette/palette/
  video: fbdev: sis: fix potential NULL dereference in sisfb_post_sis300()
  video: fbdev: pxafb: use if else instead
  video: fbdev: udlfb: properly check endpoint type
  video: fbdev: of: display_timing: Remove a redundant zeroing of memory

Pull gfs2 fix from Andreas Gruenbacher:

 - Only re-check for direct I/O writes past the end of the file after
   re-acquiring the inode glock.

* tag 'gfs2-v5.18-rc4-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: Don't re-check for write past EOF unnecessarily

Pull btrfs fixes from David Sterba:

 - direct IO fixes:

      - restore passing file offset to correctly calculate checksums
        when repairing on read and bio split happens

      - use correct bio when sumitting IO on zoned filesystem

 - zoned mode fixes:

      - fix selection of device to correctly calculate device
        capabilities when allocating a new bio

      - use a dedicated lock for exclusion during relocation

      - fix leaked plug after failure syncing log

 - fix assertion during scrub and relocation

* tag 'for-5.18-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: zoned: use dedicated lock for data relocation
  btrfs: fix assertion failure during scrub due to block group reallocation
  btrfs: fix direct I/O writes for split bios on zoned devices
  btrfs: fix direct I/O read repair for split bios
  btrfs: fix and document the zoned device choice in alloc_new_bio
  btrfs: fix leaked plug after failure syncing log on zoned filesystems

Only re-check for direct I/O writes past the end of the file after
re-acquiring the inode glock.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

Since version 5.13, the standard syscon bindings have been added
to all clps711x DT nodes, so we can now use the more general
syscon_regmap_lookup_by_phandle function to get the syscon pointer.
Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>

Pull f2fs fixes from Jaegeuk Kim:
 "This includes major bug fixes introduced in 5.18-rc1 and 5.17+:

   - Remove obsolete whint_mode (5.18-rc1)

   - Fix IO split issue caused by op_flags change in f2fs (5.18-rc1)

   - Fix a wrong condition check to detect IO failure loop (5.18-rc1)

   - Fix wrong data truncation during roll-forward (5.17+)"

* tag 'f2fs-fix-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
  f2fs: should not truncate blocks during roll-forward recovery
  f2fs: fix wrong condition check when failing metapage read
  f2fs: keep io_flags to avoid IO split due to different op_flags in two fio holders
  f2fs: remove obsolete whint_mode

It turns out that for the CONFIG_MMU=n builds, vmalloc_huge() was never
defined, since it's defined in mm/vmalloc.c, which doesn't get built for
the no-MMU configurations.

Just implement the trivial wrapper for the no-MMU case too.  In fact,
just make it an alias to the existing __vmalloc() function that has the
same signature.

Link: https://lore.kernel.org/all/CAMuHMdVdx2V1uhv_152Sw3_z2xE0spiaWp1d6Ko8-rYmAxUBAg@mail.gmail.com/
Link: https://lore.kernel.org/all/CA+G9fYscb1y4a17Sf5G_Aibt+WuSf-ks_Qjw9tYFy=A4sjCEug@mail.gmail.com/
Link: https://lore.kernel.org/all/20220425150356.GA4138752@roeck-us.net/Reported-and-tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Reported-and-tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull scheduler fix from Borislav Petkov:

 - Fix a corner case when calculating sched runqueue variables

That fix also removes a check for a zero divisor in the code, without
mentioning it.  Vincent clarified that it's ok after I whined about it:

  https://lore.kernel.org/all/CAKfTPtD2QEyZ6ADd5WrwETMOX0XOwJGnVddt7VHgfURdqgOS-Q@mail.gmail.com/

* tag 'sched_urgent_for_v5.18_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/pelt: Fix attach_entity_load_avg() corner case

Pull powerpc fixes from Michael Ellerman:

 - Partly revert a change to our timer_interrupt() that caused lockups
   with high res timers disabled.

 - Fix a bug in KVM TCE handling that could corrupt kernel memory.

 - Two commits fixing Power9/Power10 perf alternative event selection.

Thanks to Alexey Kardashevskiy, Athira Rajeev, David Gibson, Frederic
Barrat, Madhavan Srinivasan, Miguel Ojeda, and Nicholas Piggin.

* tag 'powerpc-5.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/perf: Fix 32bit compile
  powerpc/perf: Fix power10 event alternatives
  powerpc/perf: Fix power9 event alternatives
  KVM: PPC: Fix TCE handling for VFIO
  powerpc/time: Always set decrementer in timer_interrupt()

Pull perf fixes from Borislav Petkov:

 - Add Sapphire Rapids CPU support

 - Fix a perf vmalloc-ed buffer mapping error (PERF_USE_VMALLOC in use)

* tag 'perf_urgent_for_v5.18_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/cstate: Add SAPPHIRERAPIDS_X CPU support
  perf/core: Fix perf_mmap fail when CONFIG_PERF_USE_VMALLOC enabled

Pull EDAC fix from Borislav Petkov:

 - Read the reported error count from the proper register on
   synopsys_edac

* tag 'edac_urgent_for_v5.18_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/synopsys: Read the error count from the correct register

Since commit 559089e0 ("vmalloc: replace VM_NO_HUGE_VMAP with
VM_ALLOW_HUGE_VMAP"), the use of hugepage mappings for vmalloc is an
opt-in strategy, because it caused a number of problems that weren't
noticed until x86 enabled it too.

One of the issues was fixed by Nick Piggin in commit 3b8000ae
("mm/vmalloc: huge vmalloc backing pages should be split rather than
compound"), but I'm still worried about page protection issues, and
VM_FLUSH_RESET_PERMS in particular.

However, like the hash table allocation case (commit f2edd118:
"page_alloc: use vmalloc_huge for large system hash"), the use of
kvmalloc() should be safe from any such games, since the returned
pointer might be a SLUB allocation, and as such no user should
reasonably be using it in any odd ways.

We also know that the allocations are fairly large, since it falls back
to the vmalloc case only when a kmalloc() fails.  So using a hugepage
mapping seems both safe and relevant.

This patch does show a weakness in the opt-in strategy: since the opt-in
flag is in the 'vm_flags', not the usual gfp_t allocation flags, very
few of the usual interfaces actually expose it.

That's not much of an issue in this case that already used one of the
fairly specialized low-level vmalloc interfaces for the allocation, but
for a lot of other vmalloc() users that might want to opt in, it's going
to be very inconvenient.

We'll either have to fix any compatibility problems, or expose it in the
gfp flags (__GFP_COMP would have made a lot of sense) to allow normal
vmalloc() users to use hugepage mappings.  That said, the cases that
really matter were probably already taken care of by the hash tabel
allocation.

Link: https://lore.kernel.org/all/20220415164413.2727220-1-song@kernel.org/
Link: https://lore.kernel.org/all/CAHk-=whao=iosX1s5Z4SF-ZGa-ebAukJoAdUJFk5SPwnofV+Vg@mail.gmail.com/
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Song Liu <songliubraving@fb.com>
Cc: Rick Edgecombe <rick.p.edgecombe@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Use vmalloc_huge() in alloc_large_system_hash() so that large system
hash (>= PMD_SIZE) could benefit from huge pages.

Note that vmalloc_huge only allocates huge pages for systems with
HAVE_ARCH_HUGE_VMALLOC.
Signed-off-by: Song Liu <song@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Rik van Riel <riel@surriel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The irq_of_parse_and_map() function returns 0 on failure, and does not
return an negative value.

Fixes: cefc03e5 ("pinctrl: Add Pistachio SoC pin control driver")
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Link: https://lore.kernel.org/r/20220424031430.3170759-1-lv.ruyi@zte.com.cnSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Pull ksmbd server fixes from Steve French:

 - cap maximum sector size reported to avoid mount problems

 - reference count fix

 - fix filename rename race

* tag '5.18-rc3-ksmbd-fixes' of git://git.samba.org/ksmbd:
  ksmbd: set fixed sector size to FS_SECTOR_SIZE_INFORMATION
  ksmbd: increment reference count of parent fp
  ksmbd: remove filename in ksmbd_file

Pull ARC fixes from Vineet Gupta:

 - Assorted fixes

* tag 'arc-5.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: remove redundant READ_ONCE() in cmpxchg loop
  ARC: atomic: cleanup atomic-llsc definitions
  arc: drop definitions of pgd_index() and pgd_offset{, _k}() entirely
  ARC: dts: align SPI NOR node name with dtschema
  ARC: Remove a redundant memset()
  ARC: fix typos in comments
  ARC: entry: fix syscall_trace_exit argument

Pull SCSI fix from James Bottomley:
 "One fix for an information leak caused by copying a buffer to
  userspace without checking for error first in the sr driver"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: sr: Do not leak information in ioctl

Pull xen fixes from Juergen Gross:
 "A simple cleanup patch and a refcount fix for Xen on Arm"

* tag 'for-linus-5.18-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  arm/xen: Fix some refcount leaks
  xen: Convert kmap() to kmap_local_page()

Pull more drm fixes from Dave Airlie:
 "Maarten was away, so Maxine stepped up and sent me the drm-fixes
  merge, so no point leaving it for another week.

  The big change is an OF revert around bridge/panels, it may have some
  driver fallout, but hopefully this revert gets them shook out in the
  next week easier.

  Otherwise it's a bunch of locking/refcounts across drivers, a radeon
  dma_resv logic fix and some raspberry pi panel fixes.

  panel:
   - revert of patch that broke panel/bridge issues

  dma-buf:
   - remove unused header file.

  amdgpu:
   - partial revert of locking change

  radeon:
   - fix dma_resv logic inversion

  panel:
   - pi touchscreen panel init fixes

  vc4:
   - build fix
   - runtime pm refcount fix

  vmwgfx:
   - refcounting fix"

* tag 'drm-fixes-2022-04-23' of git://anongit.freedesktop.org/drm/drm:
  drm/amdgpu: partial revert "remove ctx->lock" v2
  Revert "drm: of: Lookup if child node has panel or bridge"
  Revert "drm: of: Properly try all possible cases for bridge/panel detection"
  drm/vc4: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage
  drm/vmwgfx: Fix gem refcounting and memory evictions
  drm/vc4: Fix build error when CONFIG_DRM_VC4=y && CONFIG_RASPBERRYPI_FIRMWARE=m
  drm/panel/raspberrypi-touchscreen: Initialise the bridge in prepare
  drm/panel/raspberrypi-touchscreen: Avoid NULL deref if not initialised
  dma-buf-map: remove renamed header file
  drm/radeon: fix logic inversion in radeon_sync_resv

Pull input fixes from Dmitry Torokhov:

 - a new set of keycodes to be used by marine navigation systems

 - minor fixes to omap4-keypad and cypress-sf drivers

* tag 'input-for-v5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: add Marine Navigation Keycodes
  Input: omap4-keypad - fix pm_runtime_get_sync() error checking
  Input: cypress-sf - register a callback to disable the regulators

Pull block fixes from Jens Axboe:
 "Just two small regression fixes for bcache"

* tag 'block-5.18-2022-04-22' of git://git.kernel.dk/linux-block:
  bcache: fix wrong bdev parameter when calling bio_alloc_clone() in do_bio_hook()
  bcache: put bch_bio_map() back to correct location in journal_write_unlocked()

Pull io_uring fixes from Jens Axboe:
 "Just two small fixes - one fixing a potential leak for the iovec for
  larger requests added in this cycle, and one fixing a theoretical leak
  with CQE_SKIP and IOPOLL"

* tag 'io_uring-5.18-2022-04-22' of git://git.kernel.dk/linux-block:
  io_uring: fix leaks on IOPOLL and CQE_SKIP
  io_uring: free iovec if file assignment fails

Merge tag 'perf-tools-fixes-for-v5.18-2022-04-22' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix header include for LLVM >= 14 when building with libclang.

 - Allow access to 'data_src' for auxtrace in 'perf script' with ARM SPE
   perf.data files, fixing processing data with such attributes.

 - Fix error message for test case 71 ("Convert perf time to TSC") on
   s390, where it is not supported.

* tag 'perf-tools-fixes-for-v5.18-2022-04-22' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf test: Fix error message for test case 71 on s390, where it is not supported
  perf report: Set PERF_SAMPLE_DATA_SRC bit for Arm SPE event
  perf script: Always allow field 'data_src' for auxtrace
  perf clang: Fix header include for LLVM >= 14

Add a struct page forward declaration to cacheflush_32.h.
Fixes this build warning:

    CC      drivers/crypto/xilinx/zynqmp-sha.o
  In file included from arch/sparc/include/asm/cacheflush.h:11,
                   from include/linux/cacheflush.h:5,
                   from drivers/crypto/xilinx/zynqmp-sha.c:6:
  arch/sparc/include/asm/cacheflush_32.h:38:37: warning: 'struct page' declared inside parameter list will not be visible outside of this definition or declaration
     38 | void sparc_flush_page_to_ram(struct page *page);

Exposed by commit 0e03b8fd ("crypto: xilinx - Turn SHA into a
tristate and allow COMPILE_TEST") but not Fixes: that commit because the
underlying problem is older.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: sparclinux@vger.kernel.org
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Two fixes for the raspberrypi panel initialisation, one fix for a logic
inversion in radeon, a build and pm refcounting fix for vc4, two reverts
for drm_of_get_bridge that caused a number of regression and a locking
regression for amdgpu.
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220422084403.2xrhf3jusdej5yo4@houat

Pull ext4 fixes from Ted Ts'o:
 "Fix some syzbot-detected bugs, as well as other bugs found by I/O
  injection testing.

  Change ext4's fallocate to consistently drop set[ug]id bits when an
  fallocate operation might possibly change the user-visible contents of
  a file.

  Also, improve handling of potentially invalid values in the the
  s_overhead_cluster superblock field to avoid ext4 returning a negative
  number of free blocks"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  jbd2: fix a potential race while discarding reserved buffers after an abort
  ext4: update the cached overhead value in the superblock
  ext4: force overhead calculation if the s_overhead_cluster makes no sense
  ext4: fix overhead calculation to account for the reserved gdt blocks
  ext4, doc: fix incorrect h_reserved size
  ext4: limit length to bitmap_maxbytes - blocksize in punch_hole
  ext4: fix use-after-free in ext4_search_dir
  ext4: fix bug_on in start_this_handle during umount filesystem
  ext4: fix symlink file size not match to file content
  ext4: fix fallocate to use file_modified to update permissions consistently

Pull ATA fix from Damien Le Moal:
 "A single fix to avoid a NULL pointer dereference in the pata_marvell
  driver with adapters not supporting DMA, from Zheyu"

* tag 'ata-5.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  ata: pata_marvell: Check the 'bmdma_addr' beforing reading

Pull kvm fixes from Paolo Bonzini:
 "The main and larger change here is a workaround for AMD's lack of
  cache coherency for encrypted-memory guests.

  I have another patch pending, but it's waiting for review from the
  architecture maintainers.

  RISC-V:

   - Remove 's' & 'u' as valid ISA extension

   - Do not allow disabling the base extensions 'i'/'m'/'a'/'c'

  x86:

   - Fix NMI watchdog in guests on AMD

   - Fix for SEV cache incoherency issues

   - Don't re-acquire SRCU lock in complete_emulated_io()

   - Avoid NULL pointer deref if VM creation fails

   - Fix race conditions between APICv disabling and vCPU creation

   - Bugfixes for disabling of APICv

   - Preserve BSP MSR_KVM_POLL_CONTROL across suspend/resume

  selftests:

   - Do not use bitfields larger than 32-bits, they differ between GCC
     and clang"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  kvm: selftests: introduce and use more page size-related constants
  kvm: selftests: do not use bitfields larger than 32-bits for PTEs
  KVM: SEV: add cache flush to solve SEV cache incoherency issues
  KVM: SVM: Flush when freeing encrypted pages even on SME_COHERENT CPUs
  KVM: SVM: Simplify and harden helper to flush SEV guest page(s)
  KVM: selftests: Silence compiler warning in the kvm_page_table_test
  KVM: x86/pmu: Update AMD PMC sample period to fix guest NMI-watchdog
  x86/kvm: Preserve BSP MSR_KVM_POLL_CONTROL across suspend/resume
  KVM: SPDX style and spelling fixes
  KVM: x86: Skip KVM_GUESTDBG_BLOCKIRQ APICv update if APICv is disabled
  KVM: x86: Pend KVM_REQ_APICV_UPDATE during vCPU creation to fix a race
  KVM: nVMX: Defer APICv updates while L2 is active until L1 is active
  KVM: x86: Tag APICv DISABLE inhibit, not ABSENT, if APICv is disabled
  KVM: Initialize debugfs_dentry when a VM is created to avoid NULL deref
  KVM: Add helpers to wrap vcpu->srcu_idx and yell if it's abused
  KVM: RISC-V: Use kvm_vcpu.srcu_idx, drop RISC-V's unnecessary copy
  KVM: x86: Don't re-acquire SRCU lock in complete_emulated_io()
  RISC-V: KVM: Restrict the extensions that can be disabled
  RISC-V: KVM: Remove 's' & 'u' as valid ISA extension

The current EOI handler for LEVEL triggered interrupts calls clk_enable(),
register IO, clk_disable(). The clock manipulation requires locking which
happens with IRQs disabled in clk_enable_lock(). Instead of turning the
clock on and off all the time, enable the clock in case LEVEL interrupt is
requested and keep the clock enabled until all LEVEL interrupts are freed.
The LEVEL interrupts are an exception on this platform and seldom used, so
this does not affect the common case.

This simplifies the LEVEL interrupt handling considerably and also fixes
the following splat found when using preempt-rt:
 ------------[ cut here ]------------
 WARNING: CPU: 0 PID: 0 at kernel/locking/rtmutex.c:2040 __rt_mutex_trylock+0x37/0x62
 Modules linked in:
 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.109-rt65-stable-standard-00068-g6a5afc4b1217 #85
 Hardware name: STM32 (Device Tree Support)
 [<c010a45d>] (unwind_backtrace) from [<c010766f>] (show_stack+0xb/0xc)
 [<c010766f>] (show_stack) from [<c06353ab>] (dump_stack+0x6f/0x84)
 [<c06353ab>] (dump_stack) from [<c01145e3>] (__warn+0x7f/0xa4)
 [<c01145e3>] (__warn) from [<c063386f>] (warn_slowpath_fmt+0x3b/0x74)
 [<c063386f>] (warn_slowpath_fmt) from [<c063b43d>] (__rt_mutex_trylock+0x37/0x62)
 [<c063b43d>] (__rt_mutex_trylock) from [<c063c053>] (rt_spin_trylock+0x7/0x16)
 [<c063c053>] (rt_spin_trylock) from [<c036a2f3>] (clk_enable_lock+0xb/0x80)
 [<c036a2f3>] (clk_enable_lock) from [<c036ba69>] (clk_core_enable_lock+0x9/0x18)
 [<c036ba69>] (clk_core_enable_lock) from [<c034e9f3>] (stm32_gpio_get+0x11/0x24)
 [<c034e9f3>] (stm32_gpio_get) from [<c034ef43>] (stm32_gpio_irq_trigger+0x1f/0x48)
 [<c034ef43>] (stm32_gpio_irq_trigger) from [<c014aa53>] (handle_fasteoi_irq+0x71/0xa8)
 [<c014aa53>] (handle_fasteoi_irq) from [<c0147111>] (generic_handle_irq+0x19/0x22)
 [<c0147111>] (generic_handle_irq) from [<c014752d>] (__handle_domain_irq+0x55/0x64)
 [<c014752d>] (__handle_domain_irq) from [<c0346f13>] (gic_handle_irq+0x53/0x64)
 [<c0346f13>] (gic_handle_irq) from [<c0100ba5>] (__irq_svc+0x65/0xc0)
 Exception stack(0xc0e01f18 to 0xc0e01f60)
 1f00:                                                       0000300c 00000000
 1f20: 0000300c c010ff01 00000000 00000000 c0e00000 c0e07714 00000001 c0e01f78
 1f40: c0e07758 00000000 ef7cd0ff c0e01f68 c010554b c0105542 40000033 ffffffff
 [<c0100ba5>] (__irq_svc) from [<c0105542>] (arch_cpu_idle+0xc/0x1e)
 [<c0105542>] (arch_cpu_idle) from [<c063be95>] (default_idle_call+0x21/0x3c)
 [<c063be95>] (default_idle_call) from [<c01324f7>] (do_idle+0xe3/0x1e4)
 [<c01324f7>] (do_idle) from [<c01327b3>] (cpu_startup_entry+0x13/0x14)
 [<c01327b3>] (cpu_startup_entry) from [<c0a00c13>] (start_kernel+0x397/0x3d4)
 [<c0a00c13>] (start_kernel) from [<00000000>] (0x0)
 ---[ end trace 0000000000000002 ]---

Power consumption measured on STM32MP157C DHCOM SoM is not increased or
is below noise threshold.

Fixes: 47beed51 ("pinctrl: stm32: Add level interrupt support to gpio irq chip")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Fabien Dessenne <fabien.dessenne@foss.st.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
To: linux-gpio@vger.kernel.org
Reviewed-by: Fabien Dessenne <fabien.dessenne@foss.st.com>
Link: https://lore.kernel.org/r/20220421140827.214088-1-marex@denx.deSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Test case 71 'Convert perf time to TSC' is not supported on s390.

Subtest 71.1 is skipped with the correct message, but subtest 71.2 is
not skipped and fails.

The root cause is function evlist__open() called from
test__perf_time_to_tsc().  evlist__open() returns -ENOENT because the
event cycles:u is not supported by the selected PMU, for example
platform s390 on z/VM or an x86_64 virtual machine.

The PMU driver returns -ENOENT in this case. This error is leads to the
failure.

Fix this by returning TEST_SKIP on -ENOENT.

Output before:
 71: Convert perf time to TSC:
 71.1: TSC support:             Skip (This architecture does not support)
 71.2: Perf time to TSC:        FAILED!

Output after:
 71: Convert perf time to TSC:
 71.1: TSC support:             Skip (This architecture does not support)
 71.2: Perf time to TSC:        Skip (perf_read_tsc_conversion is not supported)

This also happens on an x86_64 virtual machine:
   # uname -m
   x86_64
   $ ./perf test -F 71
    71: Convert perf time to TSC  :
    71.1: TSC support             : Ok
    71.2: Perf time to TSC        : FAILED!
   $

Committer testing:

Continues to work on x86_64:

  $ perf test 71
   71: Convert perf time to TSC    :
   71.1: TSC support               : Ok
   71.2: Perf time to TSC          : Ok
  $

Fixes: 290fa68b ("perf test tsc: Fix error message when not supported")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Chengdong Li <chengdongli@tencent.com>
Cc: chengdongli@tencent.com
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: https://lore.kernel.org/r/20220420062921.1211825-1-tmricht@linux.ibm.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Since commit bb30acae ("perf report: Bail out --mem-mode if mem
info is not available") "perf mem report" and "perf report --mem-mode"
don't report result if the PERF_SAMPLE_DATA_SRC bit is missed in sample
type.

The commit ffab4870 ("perf: arm-spe: Fix perf report
--mem-mode") partially fixes the issue.  It adds PERF_SAMPLE_DATA_SRC
bit for Arm SPE event, this allows the perf data file generated by
kernel v5.18-rc1 or later version can be reported properly.

On the other hand, perf tool still fails to be backward compatibility
for a data file recorded by an older version's perf which contains Arm
SPE trace data.  This patch is a workaround in reporting phase, when
detects ARM SPE PMU event and without PERF_SAMPLE_DATA_SRC bit, it will
force to set the bit in the sample type and give a warning info.

Fixes: bb30acae ("perf report: Bail out --mem-mode if mem info is not available")
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Tested-by: German Gomez <german.gomez@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Link: https://lore.kernel.org/r/20220414123201.842754-1-leo.yan@linaro.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

If use command 'perf script -F,+data_src' to dump memory samples with
Arm SPE trace data, it reports error:

  # perf script -F,+data_src
  Samples for 'dummy:u' event do not have DATA_SRC attribute set. Cannot print 'data_src' field.

This is because the 'dummy:u' event is absent DATA_SRC bit in its sample
type, so if a file contains AUX area tracing data then always allow
field 'data_src' to be selected as an option for perf script.

Fixes: e55ed342 ("perf arm-spe: Synthesize memory event")
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220417114837.839896-1-leo.yan@linaro.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

The header TargetRegistry.h has moved in LLVM/clang 14.

Committer notes:

The problem as noticed when building in ubuntu:22.04:

    90    98.61 ubuntu:22.04                  : FAIL gcc version 11.2.0 (Ubuntu 11.2.0-19ubuntu1)
      util/c++/clang.cpp:23:10: fatal error: llvm/Support/TargetRegistry.h: No such file or directory
         23 | #include "llvm/Support/TargetRegistry.h"
            |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      compilation terminated.

Fixed after applying this patch.
Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Guilherme Amadio <amadio@gentoo.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://twitter.com/GuilhermeAmadio/status/1514970524232921088
Link: http://lore.kernel.org/lkml/Ylp0M/VYgHOxtcnF@gentoo.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

All the entries are sorted according to num/pin except for two
entries. Sort them too.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220420142432.248565-2-luca.ceresoli@bootlin.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Some of the pinmuxing bits described in rk3308_mux_recalced_data are wrong,
pointing to non-existing registers.

Fix the entire table.

Also add a comment in front of each entry with the same string that appears
in the datasheet to make the table easier to compare with the docs.

This fix has been tested on real hardware for the gpio3b3_sel entry.

Fixes: 7825aeb7 ("pinctrl: rockchip: add rk3308 SoC support")
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220420142432.248565-1-luca.ceresoli@bootlin.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Merge tag 'samsung-pinctrl-fixes-5.18' of https://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/samsung into fixes

Samsung pinctrl drivers fixes for v5.18

1. Fix sparse warning introduced in v5.18-rc1.
2. Fix possible unmet Kconfig dependency with COMPILE_TEST, present
   since v4.3 or earlier.

Commit 5467801f ("gpio: Restrict usage of GPIO chip irq members
before initialization") attempted to fix a race condition that lead to a
NULL pointer, but in the process caused a regression for _AEI/_EVT
declared GPIOs.

This manifests in messages showing deferred probing while trying to
allocate IRQs like so:

  amd_gpio AMDI0030:00: Failed to translate GPIO pin 0x0000 to IRQ, err -517
  amd_gpio AMDI0030:00: Failed to translate GPIO pin 0x002C to IRQ, err -517
  amd_gpio AMDI0030:00: Failed to translate GPIO pin 0x003D to IRQ, err -517
  [ .. more of the same .. ]

The code for walking _AEI doesn't handle deferred probing and so this
leads to non-functional GPIO interrupts.

Fix this issue by moving the call to `acpi_gpiochip_request_interrupts`
to occur after gc->irc.initialized is set.

Fixes: 5467801f ("gpio: Restrict usage of GPIO chip irq members before initialization")
Link: https://lore.kernel.org/linux-gpio/BL1PR12MB51577A77F000A008AA694675E2EF9@BL1PR12MB5157.namprd12.prod.outlook.com/
Link: https://bugzilla.suse.com/show_bug.cgi?id=1198697
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215850
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1979
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1976Reported-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Shreeya Patel <shreeya.patel@collabora.com>
Tested-By: Samuel Čavoj <samuel@cavoj.net>
Tested-By: lukeluk498@gmail.com Link:
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-and-tested-by: Takashi Iwai <tiwai@suse.de>
Cc: Shreeya Patel <shreeya.patel@collabora.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>