The selftests GIC library presently does not support LPIs. Add a
userspace helper for configuring a redistributor for LPIs, installing
an LPI configuration table and LPI pending table.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-18-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

A prerequisite of testing LPI injection performance is of course
instantiating an ITS for the guest. Add a small library for creating an
ITS and interacting with it from the guest.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-17-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

The base registers in the GIC ITS and redistributor for LPIs are 64 bits
wide. Add quadword accessors to poke at them.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-16-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

It would appear that all of the selftests are using the same exact
layout for the GIC frames. Fold this back into the library
implementation to avoid defining magic values all over the selftests.

This is an extension of Colton's change, ripping out parameterization of
from the library internals in addition to the public interfaces.
Co-developed-by: Colton Lewis <coltonlewis@google.com>
Signed-off-by: Colton Lewis <coltonlewis@google.com>
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-15-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

There are a few subtle incongruencies between the GIC definitions used
by the kernel and selftests. Furthermore, the selftests header blends
implementation detail (e.g. default priority) with the architectural
definitions.

This is all rather annoying, since bulk imports of the kernel header
is not possible. Move selftests-specific definitions out of the
offending header and realign tests on the canonical definitions for
things like sysregs. Finally, haul in a fresh copy of the gicv3 header
to enable a forthcoming ITS selftest.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-14-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

The last genuine use case for the lpi_list_lock was the global LPI
translation cache, which has been removed in favor of a per-ITS xarray.
Remove a layer from the locking puzzle by getting rid of it.

vgic_add_lpi() still has a critical section that needs to protect
against the insertion of other LPIs; change it to take the LPI xarray's
xa_lock to retain this property.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-13-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

The MSI injection fast path has been transitioned away from the global
translation cache. Rip it out.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-12-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

Everything is in place to switch to per-ITS translation caches. Start
using the per-ITS cache to avoid the lock serialization related to the
global translation cache. Explicitly check for out-of-range device and
event IDs as the cache index is packed based on the range the ITS
actually supports.

Take the RCU read lock to protect against the returned descriptor being
freed while trying to take a reference on it, as it is no longer
necessary to acquire the lpi_list_lock.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-11-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

The fast path will soon need to find an ITS by doorbell address, as the
translation caches will become local to an ITS. Spin off a helper to do
just that.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-10-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

Within the context of a single ITS, it is possible to use an xarray to
cache the device ID & event ID translation to a particular irq
descriptor. Take advantage of this to build a translation cache capable
of fitting all valid translations for a given ITS.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-9-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

As the current LPI translation cache is global, the corresponding
invalidation helpers are also globally-scoped. In anticipation of
constructing a translation cache per ITS, add a helper for scoped cache
invalidations.

We still need to support global invalidations when LPIs are toggled on
a redistributor, as a property of the translation cache is that all
stored LPIs are known to be delieverable.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-8-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

The last user has been transitioned to walking the LPI xarray directly.
Cut the wart off, and get rid of the now unneeded lpi_count while doing
so.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-7-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

The vgic debug iterator is the final user of vgic_copy_lpi_list(), but
is a bit more complicated to transition to something else. Use a mark
in the LPI xarray to record the indices 'known' to the debug iterator.
Protect against the LPIs from being freed by associating an additional
reference with the xarray mark.

Rework iter_next() to let the xarray walk 'drive' the iteration after
visiting all of the SGIs, PPIs, and SPIs.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-6-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

The new LPI xarray makes it possible to walk the VM's LPIs without
holding a lock, meaning that vgic_copy_lpi_list() is no longer
necessary. Prepare for the deletion by walking the LPI xarray directly
in vgic_its_cmd_handle_movall().
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-5-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

The new LPI xarray makes it possible to walk the VM's LPIs without
holding a lock, meaning that vgic_copy_lpi_list() is no longer
necessary. Prepare for the deletion by walking the LPI xarray directly
in vgic_its_invall().
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-4-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

The new LPI xarray makes it possible to walk the VM's LPIs without
holding a lock, meaning that vgic_copy_lpi_list() is no longer
necessary. Prepare for the deletion by walking the LPI xarray directly
in its_sync_lpi_pending_table().
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-3-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

A subsequent change to KVM/arm64 will necessitate walking the device
list outside of the kvm->lock. Prepare by converting to an rculist. This
has zero effect on the VM destruction path, as it is expected every
reader is backed by a reference on the kvm struct.

On the other hand, ensure a given device is completely destroyed before
dropping the kvm->lock in the release() path, as certain devices expect
to be a singleton (e.g. the vfio-kvm device).

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20240422200158.2606761-2-oliver.upton@linux.devSigned-off-by: Marc Zyngier <maz@kernel.org>

Pull x86 fixes from Ingo Molnar:

 - Fix MCE timer reinit locking

 - Fix/improve CoCo guest random entropy pool init

 - Fix SEV-SNP late disable bugs

 - Fix false positive objtool build warning

 - Fix header dependency bug

 - Fix resctrl CPU offlining bug

* tag 'x86-urgent-2024-04-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/retpoline: Add NOENDBR annotation to the SRSO dummy return thunk
  x86/mce: Make sure to grab mce_sysfs_mutex in set_bank()
  x86/CPU/AMD: Track SNP host status with cc_platform_*()
  x86/cc: Add cc_platform_set/_clear() helpers
  x86/kvm/Kconfig: Have KVM_AMD_SEV select ARCH_HAS_CC_PLATFORM
  x86/coco: Require seeding RNG with RDRAND on CoCo systems
  x86/numa/32: Include missing <asm/pgtable_areas.h>
  x86/resctrl: Fix uninitialized memory read when last CPU of domain goes offline

Pull timer fixes from Ingo Molnar:
 "Fix various timer bugs:

   - Fix a timer migration bug that may result in missed events

   - Fix timer migration group hierarchy event updates

   - Fix a PowerPC64 build warning

   - Fix a handful of DocBook annotation bugs"

* tag 'timers-urgent-2024-04-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timers/migration: Return early on deactivation
  timers/migration: Fix ignored event due to missing CPU update
  vdso: Use CONFIG_PAGE_SHIFT in vdso/datapage.h
  timers: Fix text inconsistencies and spelling
  tick/sched: Fix struct tick_sched doc warnings
  tick/sched: Fix various kernel-doc warnings
  timers: Fix kernel-doc format and add Return values
  time/timekeeping: Fix kernel-doc warnings and typos
  time/timecounter: Fix inline documentation

Pull x86 perf fix from Ingo Molnar:
 "Fix a combined PEBS events bug on x86 Intel CPUs"

* tag 'perf-urgent-2024-04-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/ds: Don't clear ->pebs_data_cfg for the last PEBS event

Pull nfsd fixes from Chuck Lever:

 - Address a slow memory leak with RPC-over-TCP

 - Prevent another NFS4ERR_DELAY loop during CREATE_SESSION

* tag 'nfsd-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  nfsd: hold a lighter-weight client reference over CB_RECALL_ANY
  SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP

Pull i2c fix from Wolfram Sang:
 "A host driver build fix"

* tag 'i2c-for-6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: pxa: hide unused icr_bits[] variable

Pull xfs fix from Chandan Babu:

 - Allow creating new links to special files which were not associated
   with a project quota

* tag 'xfs-6.9-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: allow cross-linking special files without project quota

Pull smb client fixes from Steve French:

 - fix to retry close to avoid potential handle leaks when server
   returns EBUSY

 - DFS fixes including a fix for potential use after free

 - fscache fix

 - minor strncpy cleanup

 - reconnect race fix

 - deal with various possible UAF race conditions tearing sessions down

* tag '6.9-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: fix potential UAF in cifs_signal_cifsd_for_reconnect()
  smb: client: fix potential UAF in smb2_is_network_name_deleted()
  smb: client: fix potential UAF in is_valid_oplock_break()
  smb: client: fix potential UAF in smb2_is_valid_oplock_break()
  smb: client: fix potential UAF in smb2_is_valid_lease_break()
  smb: client: fix potential UAF in cifs_stats_proc_show()
  smb: client: fix potential UAF in cifs_stats_proc_write()
  smb: client: fix potential UAF in cifs_dump_full_key()
  smb: client: fix potential UAF in cifs_debug_files_proc_show()
  smb3: retrying on failed server close
  smb: client: serialise cifs_construct_tcon() with cifs_mount_mutex
  smb: client: handle DFS tcons in cifs_construct_tcon()
  smb: client: refresh referral without acquiring refpath_lock
  smb: client: guarantee refcounted children from parent session
  cifs: Fix caching to try to do open O_WRONLY as rdwr on server
  smb: client: fix UAF in smb2_reconnect_server()
  smb: client: replace deprecated strncpy with strscpy

srso_alias_untrain_ret() is special code, even if it is a dummy
which is called in the !SRSO case, so annotate it like its real
counterpart, to address the following objtool splat:

  vmlinux.o: warning: objtool: .export_symbol+0x2b290: data relocation to !ENDBR: srso_alias_untrain_ret+0x0

Fixes: 4535e1a4 ("x86/bugs: Fix the SRSO mitigation on Zen3/4")
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20240405144637.17908-1-bp@kernel.org

We want to fix:

  0e110732 ("x86/retpoline: Do the necessary fixup to the Zen3/4 srso return thunk for !SRSO")

So merge in Linus's latest into x86/urgent to have it available.
Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge tag 'i2c-host-fixes-6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current

An unused const variable kind of error has been fixed by placing
the definition of icr_bits[] inside the ifdef block where it is
used.

Merge tag 'firewire-fixes-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

Pull firewire fixes from Takashi Sakamoto:
 "The firewire-ohci kernel module has a parameter for verbose kernel
  logging. It is well-known that it logs the spurious IRQ for bus-reset
  event due to the unmasked register for IRQ event. This update fixes
  the issue"

* tag 'firewire-fixes-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: ohci: mask bus reset interrupts between ISR and bottom half

In the FireWire OHCI interrupt handler, if a bus reset interrupt has
occurred, mask bus reset interrupts until bus_reset_work has serviced and
cleared the interrupt.

Normally, we always leave bus reset interrupts masked. We infer the bus
reset from the self-ID interrupt that happens shortly thereafter. A
scenario where we unmask bus reset interrupts was introduced in 2008 in
a007bb85: If
OHCI_PARAM_DEBUG_BUSRESETS (8) is set in the debug parameter bitmask, we
will unmask bus reset interrupts so we can log them.

irq_handler logs the bus reset interrupt. However, we can't clear the bus
reset event flag in irq_handler, because we won't service the event until
later. irq_handler exits with the event flag still set. If the
corresponding interrupt is still unmasked, the first bus reset will
usually freeze the system due to irq_handler being called again each
time it exits. This freeze can be reproduced by loading firewire_ohci
with "modprobe firewire_ohci debug=-1" (to enable all debugging output).
Apparently there are also some cases where bus_reset_work will get called
soon enough to clear the event, and operation will continue normally.

This freeze was first reported a few months after a007bb85 was committed,
but until now it was never fixed. The debug level could safely be set
to -1 through sysfs after the module was loaded, but this would be
ineffectual in logging bus reset interrupts since they were only
unmasked during initialization.

irq_handler will now leave the event flag set but mask bus reset
interrupts, so irq_handler won't be called again and there will be no
freeze. If OHCI_PARAM_DEBUG_BUSRESETS is enabled, bus_reset_work will
unmask the interrupt after servicing the event, so future interrupts
will be caught as desired.

As a side effect to this change, OHCI_PARAM_DEBUG_BUSRESETS can now be
enabled through sysfs in addition to during initial module loading.
However, when enabled through sysfs, logging of bus reset interrupts will
be effective only starting with the second bus reset, after
bus_reset_work has executed.
Signed-off-by: Adam Goldman <adamg@pobox.com>
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>

Pull spi fixes from Mark Brown:
 "A few small driver specific fixes, the most important being the
  s3c64xx change which is likely to be hit during normal operation"

* tag 'spi-fix-v6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: mchp-pci1xxx: Fix a possible null pointer dereference in pci1xxx_spi_probe
  spi: spi-fsl-lpspi: remove redundant spi_controller_put call
  spi: s3c64xx: Use DMA mode from fifo size

Merge tag 'regulator-fix-v6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "One simple regualtor fix, fixing module autoloading on tps65132"

* tag 'regulator-fix-v6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: tps65132: Add of_match table

Pull regmap fixes from Mark Brown:
 "Richard found a nasty corner case in the maple tree code which he
  fixed, and also fixed a compiler warning which was showing up with the
  toolchain he uses and helpfully identified a possible incorrect error
  code which could have runtime impacts"

* tag 'regmap-fix-v6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: maple: Fix uninitialized symbol 'ret' warnings
  regmap: maple: Fix cache corruption in regcache_maple_drop()

Pull block fixes from Jens Axboe:

 - NVMe pull request via Keith:
      - Atomic queue limits fixes (Christoph)
      - Fabrics fixes (Hannes, Daniel)

 - Discard overflow fix (Li)

 - Cleanup fix for null_blk (Damien)

* tag 'block-6.9-20240405' of git://git.kernel.dk/linux:
  nvme-fc: rename free_ctrl callback to match name pattern
  nvmet-fc: move RCU read lock to nvmet_fc_assoc_exists
  nvmet: implement unique discovery NQN
  nvme: don't create a multipath node for zero capacity devices
  nvme: split nvme_update_zone_info
  nvme-multipath: don't inherit LBA-related fields for the multipath node
  block: fix overflow in blk_ioctl_discard()
  nullblk: Fix cleanup order in null_add_dev() error path

Pull io_uring fixes from Jens Axboe:

 - Backport of some fixes that came up during development of the 6.10
   io_uring patches. This includes some kbuf cleanups and reference
   fixes.

 - Disable multishot read if we don't have NOWAIT support on the target

 - Fix for a dependency issue with workqueue flushing

* tag 'io_uring-6.9-20240405' of git://git.kernel.dk/linux:
  io_uring/kbuf: hold io_buffer_list reference over mmap
  io_uring/kbuf: protect io_buffer_list teardown with a reference
  io_uring/kbuf: get rid of bl->is_ready
  io_uring/kbuf: get rid of lower BGID lists
  io_uring: use private workqueue for exit work
  io_uring: disable io-wq execution of multishot NOWAIT requests
  io_uring/rw: don't allow multishot reads without NOWAIT support

Pull SCSI fixes from James Bottomley:
 "The most important is the libsas fix, which is a problem for DMA to a
  kmalloc'd structure too small causing cache line interference. The
  other fixes (all in drivers) are mostly for allocation length fixes,
  error leg unwinding, suspend races and a missing retry"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: core: Fix MCQ mode dev command timeout
  scsi: libsas: Align SMP request allocation to ARCH_DMA_MINALIGN
  scsi: sd: Unregister device if device_add_disk() failed in sd_probe()
  scsi: ufs: core: WLUN suspend dev/link state error recovery
  scsi: mylex: Fix sysfs buffer lengths

Pull devicetree fixes from Rob Herring:

 - Fix NIOS2 boot with external DTB

 - Add missing synchronization needed between fw_devlink and DT overlay
   removals

 - Fix some unit-address regex's to be hex only

 - Drop some 10+ year old "unstable binding" statements

 - Add new SoCs to QCom UFS binding

 - Add TPM bindings to TPM maintainers

* tag 'devicetree-fixes-for-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  nios2: Only use built-in devicetree blob if configured to do so
  dt-bindings: timer: narrow regex for unit address to hex numbers
  dt-bindings: soc: fsl: narrow regex for unit address to hex numbers
  dt-bindings: remoteproc: ti,davinci: remove unstable remark
  dt-bindings: clock: ti: remove unstable remark
  dt-bindings: clock: keystone: remove unstable remark
  of: module: prevent NULL pointer dereference in vsnprintf()
  dt-bindings: ufs: qcom: document SM6125 UFS
  dt-bindings: ufs: qcom: document SC7180 UFS
  dt-bindings: ufs: qcom: document SC8180X UFS
  of: dynamic: Synchronize of_changeset_destroy() with the devlink removals
  driver core: Introduce device_link_wait_removal()
  docs: dt-bindings: add missing address/size-cells to example
  MAINTAINERS: Add TPM DT bindings to TPM maintainers

Merge tag 'mm-hotfixes-stable-2024-04-05-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "8 hotfixes, 3 are cc:stable

  There are a couple of fixups for this cycle's vmalloc changes and one
  for the stackdepot changes. And a fix for a very old x86 PAT issue
  which can cause a warning splat"

* tag 'mm-hotfixes-stable-2024-04-05-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  stackdepot: rename pool_index to pool_index_plus_1
  x86/mm/pat: fix VM_PAT handling in COW mappings
  MAINTAINERS: change vmware.com addresses to broadcom.com
  selftests/mm: include strings.h for ffsl
  mm: vmalloc: fix lockdep warning
  mm: vmalloc: bail out early in find_vmap_area() if vmap is not init
  init: open output files from cpio unpacking with O_LARGEFILE
  mm/secretmem: fix GUP-fast succeeding on secretmem folios

Pull arm64 fix from Catalin Marinas:
 "arm64/ptrace fix to use the correct SVE layout based on the saved
  floating point state rather than the TIF_SVE flag. The latter may be
  left on during syscalls even if the SVE state is discarded"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/ptrace: Use saved floating point state type to determine SVE layout

Pull RISC-V fixes from Palmer Dabbelt:

 - A fix for an __{get,put}_kernel_nofault to avoid an uninitialized
   value causing spurious failures

 - compat_vdso.so.dbg is now installed to the standard install location

 - A fix to avoid initializing PERF_SAMPLE_BRANCH_*-related events, as
   they aren't supported and will just later fail

 - A fix to make AT_VECTOR_SIZE_ARCH correct now that we're providing
   AT_MINSIGSTKSZ

 - pgprot_nx() is now implemented, which fixes vmap W^X protection

 - A fix for the vector save/restore code, which at least manifests as
   corrupted vector state when a signal is taken

 - A fix for a race condition in instruction patching

 - A fix to avoid leaking the kernel-mode GP to userspace, which is a
   kernel pointer leak that can be used to defeat KASLR in various ways

 - A handful of smaller fixes to build warnings, an overzealous printk,
   and some missing tracing annotations

* tag 'riscv-for-linus-6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: process: Fix kernel gp leakage
  riscv: Disable preemption when using patch_map()
  riscv: Fix warning by declaring arch_cpu_idle() as noinstr
  riscv: use KERN_INFO in do_trap
  riscv: Fix vector state restore in rt_sigreturn()
  riscv: mm: implement pgprot_nx
  riscv: compat_vdso: align VDSOAS build log
  RISC-V: Update AT_VECTOR_SIZE_ARCH for new AT_MINSIGSTKSZ
  riscv: Mark __se_sys_* functions __used
  drivers/perf: riscv: Disable PERF_SAMPLE_BRANCH_* while not supported
  riscv: compat_vdso: install compat_vdso.so.dbg to /lib/modules/*/vdso/
  riscv: hwprobe: do not produce frtace relocation
  riscv: Fix spurious errors from __get/put_kernel_nofault
  riscv: mm: Fix prototype to avoid discarding const