Pull turbostat fweaks and fixes from Len Brown:
 "Leprechaun sized fixes and tweaks touching only turbostat.

  'Keeping happy users happy since 2010'"

* 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: version 2023.03.17
  tools/power turbostat: fix decoding of HWP_STATUS
  tools/power turbostat: Introduce support for EMR
  tools/power turbostat: remove stray newlines from warn/warnx strings
  tools/power turbostat: Fix /dev/cpu_dma_latency warnings
  tools/power turbostat: Provide better debug messages for failed capabilities accesses
  tools/power turbostat: update dump of SECONDARY_TURBO_RATIO_LIMIT

Pull xen fixes from Juergen Gross:

 - cleanup for xen time handling

 - enable the VGA console in a Xen PVH dom0

 - cleanup in the xenfs driver

* tag 'for-linus-6.3-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: remove unnecessary (void*) conversions
  x86/PVH: obtain VGA console info in Dom0
  x86/xen/time: cleanup xen_tsc_safe_clocksource
  xen: update arch/x86/include/asm/xen/cpuid.h

Pull RISC-V fixes from Palmer Dabbelt:

 - fixes to the ASID allocator to avoid leaking stale mappings between
   tasks

 - fix the vmalloc fault handler to tolerate huge pages

* tag 'riscv-for-linus-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: mm: Support huge page in vmalloc_fault()
  riscv: asid: Fixup stale TLB entry cause application crash
  Revert "riscv: mm: notify remote harts about mmu cache updates"

Pull s390 fixes from Vasily Gorbik:

 - Update defconfigs

 - Fix early boot code by adding missing intersection check to prevent
   potential overwriting of the ipl report

 - Fix a use-after-free issue in s390-specific code related to PCI
   resources being retained after hot-unplugging individual functions,
   by removing the resources from the PCI bus's resource list and using
   the zpci_bar_struct's resource pointer directly

* tag 's390-6.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: update defconfigs
  PCI: s390: Fix use-after-free of PCI resources with per-function hotplug
  s390/ipl: add missing intersection check to ipl_report handling

Pull powerpc fixes from Michael Ellerman:

 - Fix false detection of read faults, introduced by execute-only
   support

 - Fix a build failure when GENERIC_ALLOCATOR is not selected

Thanks to Russell Currey, Randy Dunlap, Michal Suchánek, Nathan Lynch,
and Benjamin Gray.

* tag 'powerpc-6.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/mm: Fix false detection of read faults
  powerpc/pseries: RTAS work area requires GENERIC_ALLOCATOR

Pull MMC host fixes from Ulf Hansson:

 - dw_mmc-starfive: Fix initialization of the prev_err variable

 - sdhci_am654: Lower power-on failed message severity

* tag 'mmc-v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: dw_mmc-starfive: Fix initialization of prev_err
  mmc: sdhci_am654: lower power-on failed message severity

Pull sound fixes from Takashi Iwai:
 "Nothing surprising, a collection of small device-specific fixes.

  The majority of changes are for ASoC Intel stuff, while a few other
  ASoC and HD-audio fixes are found"

* tag 'sound-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (31 commits)
  ALSA: hda/ca0132: fixup buffer overrun at tuning_ctl_set()
  ALSA: asihpi: check pao in control_message()
  ASoC: hdmi-codec: only startup/shutdown on supported streams
  ASoC: da7219: Initialize jack_det_mutex
  ALSA: hda: Match only Intel devices with CONTROLLER_IN_GPU()
  ALSA: hda/realtek: Fix the speaker output on Samsung Galaxy Book2 Pro
  ALSA: hda/realtek: fix speaker, mute/micmute LEDs not work on a HP platform
  ALSA: hda: intel-dsp-config: add MTL PCI id
  ASoC: SOF: IPC4: update gain ipc msg definition to align with fw
  ASoC: SOF: sof-audio: don't squelch errors in WIDGET_SETUP phase
  ASoC: SOF: Intel: hda-ctrl: re-add sleep after entering and exiting reset
  ASoC: SOF: Intel: hda-dsp: harden D0i3 programming sequence
  ASoC: SOF: ipc4-topology: set dmic dai index from copier
  ASoC: SOF: sof-audio: Fix broken early bclk feature for SSP
  ASoC: SOF: Intel: pci-tng: revert invalid bar size setting
  ASoC: SOF: topology: Fix error handling in sof_widget_ready()
  ASoC: Intel: soc-acpi: fix copy-paste issue in topology names
  ASoC: SOF: ipc4-topology: Fix incorrect sample rate print unit
  ASoC: SOF: ipc3: Check for upper size limit for the received message
  ASOC: SOF: Intel: pci-tgl: Fix device description
  ...

Pull drm fixes from Dave Airlie:
 "Seems like a pretty regular rc3, i915 and amdgpu with the usual
  selection of fixes, then a scattering of fixes across misc drivers and
  other areas:

  accel:
   - build fix for accel

  edid:
   - fix info leak in edid

  ttm:
   - fix NULL ptr deref
   - reference counting fix

  i915:
   - Fix hwmon PL1 power limit enabling
   - Fix audio ELD handling for DP MST
   - Fix PSR io and wake line calculations
   - Fix DG2 HDMI modes with 267.30 and 319.89 MHz pixel clocks
   - Fix SSEU subslice out-of-bounds access
   - Fix misuse of non-idle barriers as fence trackers

  amdgpu:
   - SMU 13 update
   - RDNA2 suspend/resume fix when overclocking is enabled
   - SRIOV VCN fixes
   - HDCP suspend/resume fix
   - Fix drm polling splat regression
   - Fix dirty rectangle tracking for PSR
   - Fix vangogh regression on certain BIOSes
   - Misc display fixes
   - Suspend/resume IOMMU regression fix

  amdkfd:
   - Fix BO offset for multi-VMA page migration
   - Fix a possible double free
   - Fix potential use after free
   - Fix process cleanup on module exit

  bridge:
   - fix returned array size name documentation

  fbdev:
   - ref-counting fix for fbdev deferred I/O

  virtio:
   - dma sync fix

  shmem-helper:
   - error path fix

  msm:
   - shrinker blocking fix

  panfrost:
   - shrinker rpm fix

  chipsfb:
   - fix error code

  meson:
   - fix 1px pink line
   - fix regulator interaction

  sun4i:
   - fix missing component unbind"

* tag 'drm-fixes-2023-03-17' of git://anongit.freedesktop.org/drm/drm: (38 commits)
  drm/ttm: drop extra ttm_bo_put in ttm_bo_cleanup_refs
  drm/amdgpu: Don't resume IOMMU after incomplete init
  drm/amdkfd: Fixed kfd_process cleanup on module exit.
  drm/amd/display: disconnect MPCC only on OTG change
  drm/amd/display: Fix DP MST sinks removal issue
  drm/amd/display: Do not set DRR on pipe Commit
  drm/amd/display: Remove OTG DIV register write for Virtual signals.
  drm/meson: dw-hdmi: Fix devm_regulator_*get_enable*() conversion again
  drm/bridge: Fix returned array size name for atomic_get_input_bus_fmts kdoc
  drm/amdgpu/vcn: Disable indirect SRAM on Vangogh broken BIOSes
  drm/amdgpu/nv: fix codec array for SR_IOV
  drm/amd/display: Write to correct dirty_rect
  drm/amdgpu: move poll enabled/disable into non DC path
  drm/amd/display: Fix HDCP failing to enable after suspend
  drm/amdkfd: fix potential kgd_mem UAFs
  drm/amdgpu/vcn: custom video info caps for sriov
  drm/amd/pm: Fix sienna cichlid incorrect OD volage after resume
  drm/amd/pm: bump SMU 13.0.4 driver_if header version
  drm/amdkfd: fix a potential double free in pqm_create_queue
  drm/amdkfd: Get prange->offset after svm_range_vram_node_new
  ...

Pull SCSI fixes from James Bottomley:
 "Ten patches, eight in drivers and two in the core, which correct a
  regression from directory removal and add a no VPD size quirk also to
  fix a regression. All pretty small"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: mcq: Use active_reqs to check busy in clock scaling
  scsi: core: Fix a procfs host directory removal regression
  scsi: core: Add BLIST_NO_VPD_SIZE for some VDASD
  scsi: mpi3mr: Fix expander node leak in mpi3mr_remove()
  scsi: mpi3mr: Fix memory leaks in mpi3mr_init_ioc()
  scsi: mpi3mr: Fix sas_hba.phy memory leak in mpi3mr_remove()
  scsi: mpi3mr: Fix mpi3mr_hba_port memory leak in mpi3mr_remove()
  scsi: mpi3mr: Fix config page DMA memory leak
  scsi: mpi3mr: Fix throttle_groups memory leak
  scsi: mpt3sas: Fix NULL pointer access in mpt3sas_transport_port_add()

Happy St. Patrick's Day!
Signed-off-by: Len Brown <len.brown@intel.com>

The "excursion to minimum" information is in bit2
in HWP_STATUS MSR. Fix the bitmask used for
decoding the register.
Signed-off-by: Antti Laakso <antti.laakso@intel.com>
Reviewed-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

Introduce support for EMR.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Tested-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

warn(3) terminates strings with newlines
Signed-off-by: Len Brown <len.brown@intel.com>

When running as non-root the following error is seen in turbostat:

turbostat: fopen /dev/cpu_dma_latency
: Permission denied

turbostat and the man page have information on how to avoid other
permission errors, so these can be fixed the same way.

Provide better /dev/cpu_dma_latency warnings that provide instructions on
how to avoid the error, and update the man page.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: linux-pm@vger.kernel.org
Signed-off-by: Len Brown <len.brown@intel.com>

turbostat reports some capabilities access errors and not others.  Provide
the same debug message for all errors.

[lenb: remove extra quotes]

Cc: David Arcari <darcari@redhat.com>
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>

cosmetic only (but useful if you copy/paste)
Signed-off-by: Len Brown <len.brown@intel.com>

That was accidentially left over when we switched to the delayed delete
worker.
Suggested-by: Matthew Auld <matthew.william.auld@gmail.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Fixes: 9bff18d1 ("drm/ttm: use per BO cleanup workers")
Reported-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Tested-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230316072647.406707-1-christian.koenig@amd.com

Merge tag 'amd-drm-fixes-6.3-2023-03-15' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.3-2023-03-15:

amdgpu:
- SMU 13 update
- RDNA2 suspend/resume fix when overclocking is enabled
- SRIOV VCN fixes
- HDCP suspend/resume fix
- Fix drm polling splat regression
- Fix dirty rectangle tracking for PSR
- Fix vangogh regression on certain BIOSes
- Misc display fixes
- Suspend/resume IOMMU regression fix

amdkfd:
- Fix BO offset for multi-VMA page migration
- Fix a possible double free
- Fix potential use after free
- Fix process cleanup on module exit
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230315224400.7558-1-alexander.deucher@amd.com

Merge tag 'drm-intel-fixes-2023-03-15' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

drm/i915 fixes for v6.3-rc3:
- Fix hwmon PL1 power limit enabling
- Fix audio ELD handling for DP MST
- Fix PSR io and wake line calculations
- Fix DG2 HDMI modes with 267.30 and 319.89 MHz pixel clocks
- Fix SSEU subslice out-of-bounds access
- Fix misuse of non-idle barriers as fence trackers
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87r0tq5nyn.fsf@intel.com

Short summary of fixes pull:

 * fix info leak in edid
 * build fix for accel/
 * ref-counting fix for fbdev deferred I/O
 * driver fixes
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230316143347.GA9246@linux-uq9g

Pull cifs client fixes from Steve French:
 "Seven cifs/smb3 client fixes, all also for stable:

   - four DFS fixes

   - multichannel reconnect fix

   - fix smb1 stats for cancel command

   - fix for set file size error path"

* tag '6.3-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: use DFS root session instead of tcon ses
  cifs: return DFS root session id in DebugData
  cifs: fix use-after-free bug in refresh_cache_worker()
  cifs: set DFS root session in cifs_get_smb_ses()
  cifs: generate signkey for the channel that's reconnecting
  cifs: Fix smb2_set_path_size()
  cifs: Move the in_send statistic to __smb_send_rqst()

Pull kvm fixes from Paolo Bonzini:
 "ARM64:

   - Address a rather annoying bug w.r.t. guest timer offsetting. The
     synchronization of timer offsets between vCPUs was broken, leading
     to inconsistent timer reads within the VM.

  x86:

   - New tests for the slow path of the EVTCHNOP_send Xen hypercall

   - Add missing nVMX consistency checks for CR0 and CR4

   - Fix bug that broke AMD GATag on 512 vCPU machines

  Selftests:

   - Skip hugetlb tests if huge pages are not available

   - Sync KVM exit reasons"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: selftests: Sync KVM exit reasons in selftests
  KVM: selftests: Add macro to generate KVM exit reason strings
  KVM: selftests: Print expected and actual exit reason in KVM exit reason assert
  KVM: selftests: Make vCPU exit reason test assertion common
  KVM: selftests: Add EVTCHNOP_send slow path test to xen_shinfo_test
  KVM: selftests: Use enum for test numbers in xen_shinfo_test
  KVM: selftests: Add helpers to make Xen-style VMCALL/VMMCALL hypercalls
  KVM: selftests: Move the guts of kvm_hypercall() to a separate macro
  KVM: SVM: WARN if GATag generation drops VM or vCPU ID information
  KVM: SVM: Modify AVIC GATag to support max number of 512 vCPUs
  KVM: SVM: Fix a benign off-by-one bug in AVIC physical table mask
  selftests: KVM: skip hugetlb tests if huge pages are not available
  KVM: VMX: Use tabs instead of spaces for indentation
  KVM: VMX: Fix indentation coding style issue
  KVM: nVMX: remove unnecessary #ifdef
  KVM: nVMX: add missing consistency checks for CR0 and CR4
  KVM: arm64: timers: Convert per-vcpu virtual offset to a global value

Pointer variables of void * type do not require type cast.
Signed-off-by: Yu Zhe <yuzhe@nfschina.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20230316083954.4223-1-yuzhe@nfschina.comSigned-off-by: Juergen Gross <jgross@suse.com>

Check kfd->init_complete in kgd2kfd_iommu_resume, consistent with other
kgd2kfd calls. This should fix IOMMU errors on resume from suspend when
KFD IOMMU initialization failed.
Reported-by: Matt Fagnani <matt.fagnani@bell.net>
Link: https://lore.kernel.org/r/4a3b225c-2ffd-e758-4de1-447375e34cad@bell.net/
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217170
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2454
Cc: Vasant Hegde <vasant.hegde@amd.com>
Cc: Linux regression tracking (Thorsten Leemhuis) <regressions@leemhuis.info>
Cc: stable@vger.kernel.org
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Matt Fagnani <matt.fagnani@bell.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Handle case when module is unloaded (kfd_exit) before a process space
(mm_struct) is released.

v2: Fixed potential race conditions by removing all kfd_process from
the process table first, then working on releasing the resources.

v3: Fixed loop element access / synchronization.  Fixed extra empty lines.
Signed-off-by: David Belanger <david.belanger@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

[Why]
Framedrops are observed while playing Vp9 and Av1 10 bit
video on 8k resolution using VSR while playback controls
are disappeared/appeared

[How]
Now ODM 2 to 1 is disabled for 5k or greater resolutions on VSR.

Cc: stable@vger.kernel.org
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Ayush Gupta <ayugupta@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

[Why]
In USB4 DP tunneling, it's possible to have this scenario that
the path becomes unavailable and CM tears down the path a little bit late.
So, in this case, the HPD is high but fails to read any DPCD register.
That causes the link connection type to be set to sst.
And not all sinks are removed behind the MST branch.

[How]
Restore the link connection type if it fails to read DPCD register.

Cc: stable@vger.kernel.org
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Cruise Hung <Cruise.Hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

[WHY]
Writing to DRR registers such as OTG_V_TOTAL_MIN on the same frame as a
pipe commit can cause underflow.

Cc: stable@vger.kernel.org
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

[WHY]
Hot plugging and then hot unplugging leads to k1 and k2 values to
change, as signal is detected as a virtual signal on hot unplug. Writing
these values to OTG_PIXEL_RATE_DIV register might cause primary display
to blank (known hw bug).

[HOW]
No longer write k1 and k2 values to register if signal is virtual, we
have safe guards in place in the case that k1 and k2 is unassigned so
that an unknown value is not written to the register either.

Cc: stable@vger.kernel.org
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Samson Tam <Samson.Tam@amd.com>
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Saaem Rizvi <SyedSaaem.Rizvi@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Merge tag 'linux-kselftest-fixes-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:
 "A fix to amd-pstate test Makefile and a fix to LLVM build for x86 in
  kselftest common lib.mk"

* tag 'linux-kselftest-fixes-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: fix LLVM build for i386 and x86_64
  selftests: amd-pstate: fix TEST_FILES

To support detection of read faults with Radix execute-only memory, the
vma_is_accessible() check in access_error() (which checks for PROT_NONE)
was replaced with a check to see if VM_READ was missing, and if so,
returns true to assert the fault was caused by a bad read.

This is incorrect, as it ignores that both VM_WRITE and VM_EXEC imply
read on powerpc, as defined in protection_map[].  This causes mappings
containing VM_WRITE or VM_EXEC without VM_READ to misreport the cause of
page faults, since the MMU is still allowing reads.

Correct this by restoring the original vma_is_accessible() check for
PROT_NONE mappings, and adding a separate check for Radix PROT_EXEC-only
mappings.

Fixes: 395cac77 ("powerpc/mm: Support execute-only memory on the Radix MMU")
Reported-by: Michal Suchánek <msuchanek@suse.de>
Link: https://lore.kernel.org/r/20230308152702.GR19419@kitsune.suse.czTested-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230310050834.63105-1-ruscur@russell.cc

devm_regulator_get_enable_optional() returns -ENODEV if requested
optional regulator is not present. Adjust code for that, because in the
67d0a301 I've incorrectly assumed that it also returns 0 when
regulator is not present.
Reported-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Fixes: 67d0a301 ("drm/meson: dw-hdmi: Fix devm_regulator_*get_enable*() conversion")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230309152446.104913-1-m.szyprowski@samsung.com

The returned array size for input formats is set through
atomic_get_input_bus_fmts()'s 'num_input_fmts' argument, so use
'num_input_fmts' to represent the array size in the function's kdoc,
not 'num_output_fmts'.

Fixes: 91ea8330 ("drm/bridge: Fix the bridge kernel doc")
Fixes: f32df58a ("drm/bridge: Add the necessary bits to support bus format negotiation")
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230314055035.3731179-1-victor.liu@nxp.com

Use DFS root session whenever possible to get new DFS referrals
otherwise we might end up with an IPC tcon (tcon->ses->tcon_ipc) that
doesn't respond to them.  It should be safe accessing
@ses->dfs_root_ses directly in cifs_inval_name_dfs_link_error() as it
has same lifetime as of @tcon.
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Cc: stable@vger.kernel.org # 6.2
Signed-off-by: Steve French <stfrench@microsoft.com>

Return the DFS root session id in /proc/fs/cifs/DebugData to make it
easier to track which IPC tcon was used to get new DFS referrals for a
specific connection, and aids in debugging.

A simple output of it would be

  Sessions:
  1) Address: 192.168.1.13 Uses: 1 Capability: 0x300067   Session Status: 1
  Security type: RawNTLMSSP  SessionId: 0xd80000000009
  User: 0 Cred User: 0
  DFS root session id: 0x128006c000035
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Cc: stable@vger.kernel.org # 6.2
Signed-off-by: Steve French <stfrench@microsoft.com>

The getaffinity() system call uses 'cpumask_size()' to decide how big
the CPU mask is - so far so good.  It is indeed the allocation size of a
cpumask.

But the code also assumes that the whole allocation is initialized
without actually doing so itself.  That's wrong, because we might have
fixed-size allocations (making copying and clearing more efficient), but
not all of it is then necessarily used if 'nr_cpu_ids' is smaller.

Having checked other users of 'cpumask_size()', they all seem to be ok,
either using it purely for the allocation size, or explicitly zeroing
the cpumask before using the size in bytes to copy it.

See for example the ublk_ctrl_get_queue_affinity() function that uses
the proper 'zalloc_cpumask_var()' to make sure that the whole mask is
cleared, whether the storage is on the stack or if it was an external
allocation.

Fix this by just zeroing the allocation before using it.  Do the same
for the compat version of sched_getaffinity(), which had the same logic.

Also, for consistency, make sched_getaffinity() use 'cpumask_bits()' to
access the bits.  For a cpumask_var_t, it ends up being a pointer to the
same data either way, but it's just a good idea to treat it like you
would a 'cpumask_t'.  The compat case already did that.
Reported-by: Ryan Roberts <ryan.roberts@arm.com>
Link: https://lore.kernel.org/lkml/7d026744-6bd6-6827-0471-b5e8eae0be3f@arm.com/
Cc: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Since RISC-V supports ioremap() with huge page (pud/pmd) mapping,
However, vmalloc_fault() assumes that the vmalloc range is limited
to pte mappings. To complete the vmalloc_fault() function by adding
huge page support.

Fixes: 310f541a ("riscv: Enable HAVE_ARCH_HUGE_VMAP for 64BIT")
Cc: stable@vger.kernel.org
Signed-off-by: Dylan Jhong <dylan@andestech.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20230310075021.3919290-1-dylan@andestech.comSigned-off-by: Palmer Dabbelt <palmer@rivosinc.com>

The UAF bug occurred because we were putting DFS root sessions in
cifs_umount() while DFS cache refresher was being executed.

Make DFS root sessions have same lifetime as DFS tcons so we can avoid
the use-after-free bug is DFS cache refresher and other places that
require IPCs to get new DFS referrals on.  Also, get rid of mount
group handling in DFS cache as we no longer need it.

This fixes below use-after-free bug catched by KASAN

[ 379.946955] BUG: KASAN: use-after-free in __refresh_tcon.isra.0+0x10b/0xc10 [cifs]
[ 379.947642] Read of size 8 at addr ffff888018f57030 by task kworker/u4:3/56
[ 379.948096]
[ 379.948208] CPU: 0 PID: 56 Comm: kworker/u4:3 Not tainted 6.2.0-rc7-lku #23
[ 379.948661] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
rel-1.16.0-0-gd239552-rebuilt.opensuse.org 04/01/2014
[ 379.949368] Workqueue: cifs-dfscache refresh_cache_worker [cifs]
[ 379.949942] Call Trace:
[ 379.950113] <TASK>
[ 379.950260] dump_stack_lvl+0x50/0x67
[ 379.950510] print_report+0x16a/0x48e
[ 379.950759] ? __virt_addr_valid+0xd8/0x160
[ 379.951040] ? __phys_addr+0x41/0x80
[ 379.951285] kasan_report+0xdb/0x110
[ 379.951533] ? __refresh_tcon.isra.0+0x10b/0xc10 [cifs]
[ 379.952056] ? __refresh_tcon.isra.0+0x10b/0xc10 [cifs]
[ 379.952585] __refresh_tcon.isra.0+0x10b/0xc10 [cifs]
[ 379.953096] ? __pfx___refresh_tcon.isra.0+0x10/0x10 [cifs]
[ 379.953637] ? __pfx___mutex_lock+0x10/0x10
[ 379.953915] ? lock_release+0xb6/0x720
[ 379.954167] ? __pfx_lock_acquire+0x10/0x10
[ 379.954443] ? refresh_cache_worker+0x34e/0x6d0 [cifs]
[ 379.954960] ? __pfx_wb_workfn+0x10/0x10
[ 379.955239] refresh_cache_worker+0x4ad/0x6d0 [cifs]
[ 379.955755] ? __pfx_refresh_cache_worker+0x10/0x10 [cifs]
[ 379.956323] ? __pfx_lock_acquired+0x10/0x10
[ 379.956615] ? read_word_at_a_time+0xe/0x20
[ 379.956898] ? lockdep_hardirqs_on_prepare+0x12/0x220
[ 379.957235] process_one_work+0x535/0x990
[ 379.957509] ? __pfx_process_one_work+0x10/0x10
[ 379.957812] ? lock_acquired+0xb7/0x5f0
[ 379.958069] ? __list_add_valid+0x37/0xd0
[ 379.958341] ? __list_add_valid+0x37/0xd0
[ 379.958611] worker_thread+0x8e/0x630
[ 379.958861] ? __pfx_worker_thread+0x10/0x10
[ 379.959148] kthread+0x17d/0x1b0
[ 379.959369] ? __pfx_kthread+0x10/0x10
[ 379.959630] ret_from_fork+0x2c/0x50
[ 379.959879] </TASK>
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Cc: stable@vger.kernel.org # 6.2
Signed-off-by: Steve French <stfrench@microsoft.com>

Set the DFS root session pointer earlier when creating a new SMB
session to prevent racing with smb2_reconnect(), cifs_reconnect_tcon()
and DFS cache refresher.
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Cc: stable@vger.kernel.org # 6.2
Signed-off-by: Steve French <stfrench@microsoft.com>

Merge tag 'mm-hotfixes-stable-2023-03-14-16-51' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "Eleven hotfixes.

  Four of these are cc:stable and the remainder address post-6.2 issues
  or aren't considered suitable for backporting.

  Seven of these fixes are for MM"

* tag 'mm-hotfixes-stable-2023-03-14-16-51' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/damon/paddr: fix folio_nr_pages() after folio_put() in damon_pa_mark_accessed_or_deactivate()
  mm/damon/paddr: fix folio_size() call after folio_put() in damon_pa_young()
  ocfs2: fix data corruption after failed write
  migrate_pages: try migrate in batch asynchronously firstly
  migrate_pages: move split folios processing out of migrate_pages_batch()
  migrate_pages: fix deadlock in batched migration
  .mailmap: add Alexandre Ghiti personal email address
  mailmap: correct Dikshita Agarwal's Qualcomm email address
  mailmap: updates for Jarkko Sakkinen
  mm/userfaultfd: propagate uffd-wp bit when PTE-mapping the huge zeropage
  mm: teach mincore_hugetlb about pte markers