Pass the perag structure and the irec so that the decoding is only done
when tracing is actually enabled and the call sites look a lot neater,
and remove the pointless class indirection.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
So that decoding is only done when tracing is actually enabled and the
call site look a lot neater.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Pass the perag structure and the irec to these tracepoints so that the
decoding is only done when tracing is actually enabled and the call sites
look a lot neater.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
And remove the single instance class indirection for it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Trace points never modify their arguments. Mark all the pag objects
passed to trace points. The exception is the xfs_ag_resv_class, which
uses the xfs_perag_resv helper that can't be marked const due to
other users modifying the returned structure.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
The mount field is only passed to xfs_extent_busy_clear, which never uses
it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Processing of busy extents requires the perag structure, so keep the
reference while they are in flight.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Replace the [mp,agno] tuple with the perag structure, which will become
more useful later.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Add a helpers to convert an agino to an ino based on a pag structure.
This provides a simpler conversion and better type safety compared to the
existing code that passes the mount structure and the agno separately.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Add helpers to convert an agbno to a daddr or fsbno based on a pag
structure.
This provides a simpler conversion and better type safety compared to the
existing code that passes the mount structure and the agno separately.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
xfs_free_ag_extent already has a pointer to the pag structure through
the agf buffer. Use that instead of passing the redundant argument,
and do the same for the tracepoint.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
We'll want to use more than just the agno field in a bit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
pag_active_wq is only woken, but never waited for.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
The for_each_perag helpers update the agno passed in for each iteration,
and thus the "if (pag->pag_agno == start_ag)" check will always be true.
Add another variable for the loop iterator so that the field is only
cleared after the first iteration.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
In commit 11f4c3a53a, we tried to simplify the extent lookup in
xfs_can_free_eofblocks so that it doesn't incur the overhead of all the
extra stuff that xfs_bmapi_read does around the iext lookup.
Unfortunately, this causes regressions on generic/603, xfs/108,
generic/219, xfs/173, generic/694, xfs/052, generic/230, and xfs/441
when always_cow is turned on. In all cases, the regressions take the
form of alwayscow files consuming rather more space than the golden
output is expecting. I observed that in all these cases, the cause of
the excess space usage was due to CoW fork delalloc reservations that go
beyond EOF.
For alwayscow files we allow posteof delalloc CoW reservations because
all writes go through the CoW fork. Recall that all extents in the CoW
fork are accounted for via i_delayed_blks, which means that prior to
this patch, we'd invoke xfs_free_eofblocks on first close if anything
was in the CoW fork. Now we don't do that.
Fix the problem by reverting the removal of the i_delayed_blks check.
Cc: <stable@vger.kernel.org> # v6.12-rc1
Fixes: 11f4c3a53a ("xfs: simplify extent lookup in xfs_can_free_eofblocks")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
The usual collection of singletons - please see the changelogs.
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Merge tag 'mm-hotfixes-stable-2024-11-03-10-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"17 hotfixes. 9 are cc:stable. 13 are MM and 4 are non-MM.
The usual collection of singletons - please see the changelogs"
* tag 'mm-hotfixes-stable-2024-11-03-10-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: multi-gen LRU: use {ptep,pmdp}_clear_young_notify()
mm: multi-gen LRU: remove MM_LEAF_OLD and MM_NONLEAF_TOTAL stats
mm, mmap: limit THP alignment of anonymous mappings to PMD-aligned sizes
mm: shrinker: avoid memleak in alloc_shrinker_info
.mailmap: update e-mail address for Eugen Hristev
vmscan,migrate: fix page count imbalance on node stats when demoting pages
mailmap: update Jarkko's email addresses
mm: allow set/clear page_type again
nilfs2: fix potential deadlock with newly created symlinks
Squashfs: fix variable overflow in squashfs_readpage_block
kasan: remove vmalloc_percpu test
tools/mm: -Werror fixes in page-types/slabinfo
mm, swap: avoid over reclaim of full clusters
mm: fix PSWPIN counter for large folios swap-in
mm: avoid VM_BUG_ON when try to map an anon large folio to zero page.
mm/codetag: fix null pointer check logic for ref and tag
mm/gup: stop leaking pinned pages in low memory conditions
Driver fixes for:
- TI driver fix to set EOP for cyclic BCDMA transfers
- sh rz-dmac driver fix for handling config with zero address
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Merge tag 'dmaengine-fix-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine fixes from Vinod Koul:
- TI driver fix to set EOP for cyclic BCDMA transfers
- sh rz-dmac driver fix for handling config with zero address
* tag 'dmaengine-fix-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
dmaengine: ti: k3-udma: Set EOP for all TRs in cyclic BCDMA transfer
dmaengine: sh: rz-dmac: handle configs where one address is zero
Here is a single driver core revert for 6.12-rc6. It reverts a change
that came in -rc1 that was supposed to resolve a reported problem, but
caused another one, so revert it for now so that we can get this all
worked out properly in 6.13.
The revert has been in linux-next all week with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core revert from Greg KH:
"Here is a single driver core revert for 6.12-rc6. It reverts a change
that came in -rc1 that was supposed to resolve a reported problem, but
caused another one, so revert it for now so that we can get this all
worked out properly in 6.13.
The revert has been in linux-next all week with no reported issues"
* tag 'driver-core-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
Revert "driver core: Fix uevent_show() vs driver detach race"
Here are some small USB and Thunderbolt driver fixes for 6.12-rc6 that
have been sitting in my tree this week. Included in here are the
following:
- thunderbolt driver fixes for reported issues
- USB typec driver fixes
- xhci driver fixes for reported problems
- dwc2 driver revert for a broken change
- usb phy driver fix
- usbip tool fix
All of these have been in linux-next this week with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt fixes from Greg KH:
"Here are some small USB and Thunderbolt driver fixes for 6.12-rc6 that
have been sitting in my tree this week. Included in here are the
following:
- thunderbolt driver fixes for reported issues
- USB typec driver fixes
- xhci driver fixes for reported problems
- dwc2 driver revert for a broken change
- usb phy driver fix
- usbip tool fix
All of these have been in linux-next this week with no reported
issues"
* tag 'usb-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: typec: tcpm: restrict SNK_WAIT_CAPABILITIES_TIMEOUT transitions to non self-powered devices
usb: phy: Fix API devm_usb_put_phy() can not release the phy
usb: typec: use cleanup facility for 'altmodes_node'
usb: typec: fix unreleased fwnode_handle in typec_port_register_altmodes()
usb: typec: qcom-pmic-typec: fix missing fwnode removal in error path
usb: typec: qcom-pmic-typec: use fwnode_handle_put() to release fwnodes
usb: acpi: fix boot hang due to early incorrect 'tunneled' USB3 device links
Revert "usb: dwc2: Skip clock gating on Broadcom SoCs"
xhci: Fix Link TRB DMA in command ring stopped completion event
xhci: Use pm_runtime_get to prevent RPM on unsupported systems
usbip: tools: Fix detach_port() invalid port error path
thunderbolt: Honor TMU requirements in the domain when setting TMU mode
thunderbolt: Fix KASAN reported stack out-of-bounds read in tb_retimer_scan()
When the MM_WALK capability is enabled, memory that is mostly accessed by
a VM appears younger than it really is, therefore this memory will be less
likely to be evicted. Therefore, the presence of a running VM can
significantly increase swap-outs for non-VM memory, regressing the
performance for the rest of the system.
Fix this regression by always calling {ptep,pmdp}_clear_young_notify()
whenever we clear the young bits on PMDs/PTEs.
[jthoughton@google.com: fix link-time error]
Link: https://lkml.kernel.org/r/20241019012940.3656292-3-jthoughton@google.com
Fixes: bd74fdaea1 ("mm: multi-gen LRU: support page table walks")
Signed-off-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: James Houghton <jthoughton@google.com>
Reported-by: David Stevens <stevensd@google.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: David Matlack <dmatlack@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Wei Xu <weixugc@google.com>
Cc: <stable@vger.kernel.org>
Cc: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "mm: multi-gen LRU: Have secondary MMUs participate in
MM_WALK".
Today, the MM_WALK capability causes MGLRU to clear the young bit from
PMDs and PTEs during the page table walk before eviction, but MGLRU does
not call the clear_young() MMU notifier in this case. By not calling this
notifier, the MM walk takes less time/CPU, but it causes pages that are
accessed mostly through KVM / secondary MMUs to appear younger than they
should be.
We do call the clear_young() notifier today, but only when attempting to
evict the page, so we end up clearing young/accessed information less
frequently for secondary MMUs than for mm PTEs, and therefore they appear
younger and are less likely to be evicted. Therefore, memory that is
*not* being accessed mostly by KVM will be evicted *more* frequently,
worsening performance.
ChromeOS observed a tab-open latency regression when enabling MGLRU with a
setup that involved running a VM:
Tab-open latency histogram (ms)
Version p50 mean p95 p99 max
base 1315 1198 2347 3454 10319
mglru 2559 1311 7399 12060 43758
fix 1119 926 2470 4211 6947
This series replaces the final non-selftest patchs from this series[1],
which introduced a similar change (and a new MMU notifier) with KVM
optimizations. I'll send a separate series (to Sean and Paolo) for the
KVM optimizations.
This series also makes proactive reclaim with MGLRU possible for KVM
memory. I have verified that this functions correctly with the selftest
from [1], but given that that test is a KVM selftest, I'll send it with
the rest of the KVM optimizations later. Andrew, let me know if you'd
like to take the test now anyway.
[1]: https://lore.kernel.org/linux-mm/20240926013506.860253-18-jthoughton@google.com/
This patch (of 2):
The removed stats, MM_LEAF_OLD and MM_NONLEAF_TOTAL, are not very helpful
and become more complicated to properly compute when adding
test/clear_young() notifiers in MGLRU's mm walk.
Link: https://lkml.kernel.org/r/20241019012940.3656292-1-jthoughton@google.com
Link: https://lkml.kernel.org/r/20241019012940.3656292-2-jthoughton@google.com
Fixes: bd74fdaea1 ("mm: multi-gen LRU: support page table walks")
Signed-off-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: James Houghton <jthoughton@google.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: David Matlack <dmatlack@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Stevens <stevensd@google.com>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Wei Xu <weixugc@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Here are some small char/misc/iio fixes for 6.12-rc6 that resolves some
reported issues. Included in here are the following:
- small IIO driver fixes for many reported issues
- mei driver fix for a suddenly much reported issue for an "old"
issue.
- MAINTAINERS update for a developer who has moved companies and
forgot to update their old entry.
All of these have been in linux-next this week with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull misc driver fixes from Greg KH:
"Here are some small char/misc/iio fixes for 6.12-rc6 that resolve
some reported issues. Included in here are the following:
- small IIO driver fixes for many reported issues
- mei driver fix for a suddenly much reported issue for an "old"
issue.
- MAINTAINERS update for a developer who has moved companies and
forgot to update their old entry.
All of these have been in linux-next this week with no reported
issues"
* tag 'char-misc-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mei: use kvmalloc for read buffer
MAINTAINERS: add netup_unidvb maintainer
iio: dac: Kconfig: Fix build error for ltc2664
iio: adc: ad7124: fix division by zero in ad7124_set_channel_odr()
staging: iio: frequency: ad9832: fix division by zero in ad9832_calc_freqreg()
docs: iio: ad7380: fix supply for ad7380-4
iio: adc: ad7380: fix supplies for ad7380-4
iio: adc: ad7380: add missing supplies
iio: adc: ad7380: use devm_regulator_get_enable_read_voltage()
dt-bindings: iio: adc: ad7380: fix ad7380-4 reference supply
iio: light: veml6030: fix microlux value calculation
iio: gts-helper: Fix memory leaks for the error path of iio_gts_build_avail_scale_table()
iio: gts-helper: Fix memory leaks in iio_gts_build_avail_scale_table()
- a fix for regression in input core introduced in 6.11 preventing
re-registering input handlers
- a fix for adp5588-keys driver tyring to disable interrupt 0 at suspend
when devices is used without interrupt
- a fix for edt-ft5x06 to stop leaking regmap structure when probing
fails and to make sure it is not released too early on removal.
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Merge tag 'input-for-v6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- a fix for regression in input core introduced in 6.11 preventing
re-registering input handlers
- a fix for adp5588-keys driver tyring to disable interrupt 0 at
suspend when devices is used without interrupt
- a fix for edt-ft5x06 to stop leaking regmap structure when probing
fails and to make sure it is not released too early on removal.
* tag 'input-for-v6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: fix regression when re-registering input handlers
Input: adp5588-keys - do not try to disable interrupt 0
Input: edt-ft5x06 - fix regmap leak when probe fails
- Fix a memory leak in modpost
- Resolve build issues when cross-compiling RPM and Debian packages
- Fix another regression in Kconfig
- Fix incorrect MODULE_ALIAS() output in modpost
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Merge tag 'kbuild-fixes-v6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Fix a memory leak in modpost
- Resolve build issues when cross-compiling RPM and Debian packages
- Fix another regression in Kconfig
- Fix incorrect MODULE_ALIAS() output in modpost
* tag 'kbuild-fixes-v6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
modpost: fix input MODULE_DEVICE_TABLE() built for 64-bit on 32-bit host
modpost: fix acpi MODULE_DEVICE_TABLE built with mismatched endianness
kconfig: show sub-menu entries even if the prompt is hidden
kbuild: deb-pkg: add pkg.linux-upstream.nokerneldbg build profile
kbuild: deb-pkg: add pkg.linux-upstream.nokernelheaders build profile
kbuild: rpm-pkg: disable kernel-devel package when cross-compiling
sumversion: Fix a memory leak in get_src_version()
When CONFIG_AMD_NB is not set a COMPILE_TEST of an AMD specific driver
fails due to a missing inline stub. Add the stub to cure it.
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Merge tag 'x86-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Thomas Gleixner:
"A trivial compile test fix for x86:
When CONFIG_AMD_NB is not set a COMPILE_TEST of an AMD specific driver
fails due to a missing inline stub. Add the stub to cure it"
* tag 'x86-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/amd_nb: Fix compile-testing without CONFIG_AMD_NB
When a thread is cloned, the posix CPU timers are not inherited.
If the parent has a CPU timer armed the corresponding tick dependency in
the tasks tick_dep_mask is set and copied to the new thread, which means
the new thread and all decendants will prevent the system to go into full
NOHZ operation.
Clear the tick dependency mask in copy_process() to fix this.
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Merge tag 'timers-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
"A single fix for posix CPU timers.
When a thread is cloned, the posix CPU timers are not inherited.
If the parent has a CPU timer armed the corresponding tick dependency
in the tasks tick_dep_mask is set and copied to the new thread, which
means the new thread and all decendants will prevent the system to go
into full NOHZ operation.
Clear the tick dependency mask in copy_process() to fix this"
* tag 'timers-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
posix-cpu-timers: Clear TICK_DEP_BIT_POSIX_TIMER on clone
- Plug a race between pick_next_task_fair() and try_to_wake_up() where
both try to write to the same task, even though both paths hold a
runqueue lock, but obviously from different runqueues.
The problem is that the store to task::on_rq in __block_task() is
visible to try_to_wake_up() which assumes that the task is not queued.
Both sides then operate on the same task.
Cure it by rearranging __block_task() so the the store to task::on_rq is
the last operation on the task.
- Prevent a potential NULL pointer dereference in task_numa_work()
task_numa_work() iterates the VMAs of a process. A concurrent unmap of
the address space can result in a NULL pointer return from vma_next()
which is unchecked.
Add the missing NULL pointer check to prevent this.
- Operate on the correct scheduler policy in task_should_scx()
task_should_scx() returns true when a task should be handled by sched
EXT. It checks the tasks scheduling policy.
This fails when the check is done before a policy has been set.
Cure it by handing the policy into task_should_scx() so it operates
on the requested value.
- Add the missing handling of sched EXT in the delayed dequeue
mechanism. This was simply forgotten.
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Merge tag 'sched-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
- Plug a race between pick_next_task_fair() and try_to_wake_up() where
both try to write to the same task, even though both paths hold a
runqueue lock, but obviously from different runqueues.
The problem is that the store to task::on_rq in __block_task() is
visible to try_to_wake_up() which assumes that the task is not
queued. Both sides then operate on the same task.
Cure it by rearranging __block_task() so the the store to task::on_rq
is the last operation on the task.
- Prevent a potential NULL pointer dereference in task_numa_work()
task_numa_work() iterates the VMAs of a process. A concurrent unmap
of the address space can result in a NULL pointer return from
vma_next() which is unchecked.
Add the missing NULL pointer check to prevent this.
- Operate on the correct scheduler policy in task_should_scx()
task_should_scx() returns true when a task should be handled by sched
EXT. It checks the tasks scheduling policy.
This fails when the check is done before a policy has been set.
Cure it by handing the policy into task_should_scx() so it operates
on the requested value.
- Add the missing handling of sched EXT in the delayed dequeue
mechanism. This was simply forgotten.
* tag 'sched-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/ext: Fix scx vs sched_delayed
sched: Pass correct scheduling policy to __setscheduler_class
sched/numa: Fix the potential null pointer dereference in task_numa_work()
sched: Fix pick_next_task_fair() vs try_to_wake_up() race
perf_event_clear_cpumask() uses list_for_each_entry_rcu() without being
in a RCU read side critical section, which triggers a "suspicious RCU
usage" warning.
It turns out that the list walk does not be RCU protected because the
write side lock is held in this contxt.
Change it to a regular list walk.
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Merge tag 'perf-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fix from Thomas Gleixner:
"perf_event_clear_cpumask() uses list_for_each_entry_rcu() without
being in a RCU read side critical section, which triggers a
'suspicious RCU usage' warning.
It turns out that the list walk does not be RCU protected because the
write side lock is held in this context.
Change it to a regular list walk"
* tag 'perf-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Fix missing RCU reader protection in perf_event_clear_cpumask()
- Fix an off-by-one error in the failure path of msi_domain_alloc(),
which causes the cleanup loop to terminate early and leaking the first
allocated interrupt.
- Handle a corner case in GIC-V4 versus a lazily mapped Virtual
Processing Element (VPE). If the VPE has not been mapped because the
guest has not yet emitted a mapping command, then the set_affinity()
callback returns an error code, which causes the vCPU management to fail.
Return success in this case without touching the hardware. This will be
done later when the guest issues the mapping command.
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Merge tag 'irq-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
- Fix an off-by-one error in the failure path of msi_domain_alloc(),
which causes the cleanup loop to terminate early and leaking the
first allocated interrupt.
- Handle a corner case in GIC-V4 versus a lazily mapped Virtual
Processing Element (VPE). If the VPE has not been mapped because the
guest has not yet emitted a mapping command, then the set_affinity()
callback returns an error code, which causes the vCPU management to
fail.
Return success in this case without touching the hardware. This will
be done later when the guest issues the mapping command.
* tag 'irq-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic-v4: Correctly deal with set_affinity on lazily-mapped VPEs
genirq/msi: Fix off-by-one error in msi_domain_alloc()
When building a 64-bit kernel on a 32-bit build host, incorrect
input MODULE_ALIAS() entries may be generated.
For example, when compiling a 64-bit kernel with CONFIG_INPUT_MOUSEDEV=m
on a 64-bit build machine, you will get the correct output:
$ grep MODULE_ALIAS drivers/input/mousedev.mod.c
MODULE_ALIAS("input:b*v*p*e*-e*1,*2,*k*110,*r*0,*1,*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*2,*k*r*8,*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*3,*k*14A,*r*a*0,*1,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*3,*k*145,*r*a*0,*1,*18,*1C,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*3,*k*110,*r*a*0,*1,*m*l*s*f*w*");
However, building the same kernel on a 32-bit machine results in
incorrect output:
$ grep MODULE_ALIAS drivers/input/mousedev.mod.c
MODULE_ALIAS("input:b*v*p*e*-e*1,*2,*k*110,*130,*r*0,*1,*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*2,*k*r*8,*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*3,*k*14A,*16A,*r*a*0,*1,*20,*21,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*3,*k*145,*165,*r*a*0,*1,*18,*1C,*20,*21,*38,*3C,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*3,*k*110,*130,*r*a*0,*1,*20,*21,*m*l*s*f*w*");
A similar issue occurs with CONFIG_INPUT_JOYDEV=m. On a 64-bit build
machine, the output is:
$ grep MODULE_ALIAS drivers/input/joydev.mod.c
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*0,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*2,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*8,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*6,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*k*120,*r*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*k*130,*r*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*k*2C0,*r*a*m*l*s*f*w*");
However, on a 32-bit machine, the output is incorrect:
$ grep MODULE_ALIAS drivers/input/joydev.mod.c
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*0,*20,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*2,*22,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*8,*28,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*6,*26,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*k*11F,*13F,*r*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*k*11F,*13F,*r*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*k*2C0,*2E0,*r*a*m*l*s*f*w*");
When building a 64-bit kernel, BITS_PER_LONG is defined as 64. However,
on a 32-bit build machine, the constant 1L is a signed 32-bit value.
Left-shifting it beyond 32 bits causes wraparound, and shifting by 31
or 63 bits makes it a negative value.
The fix in commit e0e9263271 ("[PATCH] PATCH: 1 line 2.6.18 bugfix:
modpost-64bit-fix.patch") is incorrect; it only addresses cases where
a 64-bit kernel is built on a 64-bit build machine, overlooking cases
on a 32-bit build machine.
Using 1ULL ensures a 64-bit width on both 32-bit and 64-bit machines,
avoiding the wraparound issue.
Fixes: e0e9263271 ("[PATCH] PATCH: 1 line 2.6.18 bugfix: modpost-64bit-fix.patch")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
When CONFIG_SATA_AHCI_PLATFORM=m, modpost outputs incorect acpi
MODULE_ALIAS() if the endianness of the target and the build machine
do not match.
When the endianness of the target kernel and the build machine match,
the output is correct:
$ grep 'MODULE_ALIAS("acpi' drivers/ata/ahci_platform.mod.c
MODULE_ALIAS("acpi*:APMC0D33:*");
MODULE_ALIAS("acpi*:010601:*");
However, when building a little-endian kernel on a big-endian machine
(or vice versa), the output is incorrect:
$ grep 'MODULE_ALIAS("acpi' drivers/ata/ahci_platform.mod.c
MODULE_ALIAS("acpi*:APMC0D33:*");
MODULE_ALIAS("acpi*:0601??:*");
The 'cls' and 'cls_msk' fields are 32-bit.
DEF_FIELD() must be used instead of DEF_FIELD_ADDR() to correctly handle
endianness of these 32-bit fields.
The check 'if (cls)' was unnecessary; it never became NULL, as it was
the pointer to 'symval' plus the offset to the 'cls' field.
Fixes: 26095a01d3 ("ACPI / scan: Add support for ACPI _CLS device matching")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Commit d469647baf ("Input: simplify event handling logic") introduced
code that would set handler->events() method to either
input_handler_events_filter() or input_handler_events_default() or
input_handler_events_null(), depending on the kind of input handler
(a filter or a regular one) we are dealing with. Unfortunately this
breaks cases when we try to re-register the same filter (as is the case
with sysrq handler): after initial registration the handler will have 2
event handling methods defined, and will run afoul of the check in
input_handler_check_methods():
input: input_handler_check_methods: only one event processing method can be defined (sysrq)
sysrq: Failed to register input handler, error -22
Fix this by adding handle_events() method to input_handle structure and
setting it up when registering a new input handle according to event
handling methods defined in associated input_handler structure, thus
avoiding modifying the input_handler structure.
Reported-by: "Ned T. Crigler" <crigler@gmail.com>
Reported-by: Christian Heusel <christian@heusel.eu>
Tested-by: "Ned T. Crigler" <crigler@gmail.com>
Tested-by: Peter Seiderer <ps.report@gmx.net>
Fixes: d469647baf ("Input: simplify event handling logic")
Link: https://lore.kernel.org/r/Zx2iQp6csn42PJA7@xavtug
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* fix a sysbot reported crash on filestreams
* Reduce cpu time spent searching for extents in
a very fragmented FS
* Check for delayed allocations before setting extsize
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-6.12-fixes-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Carlos Maiolino:
- fix a sysbot reported crash on filestreams
- Reduce cpu time spent searching for extents in a very fragmented FS
- Check for delayed allocations before setting extsize
* tag 'xfs-6.12-fixes-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: streamline xfs_filestream_pick_ag
xfs: fix finding a last resort AG in xfs_filestream_pick_ag
xfs: Reduce unnecessary searches when searching for the best extents
xfs: Check for delayed allocations before setting extsize
Kselftest fixes for Linux 6.12-rc6
- fix syntax error in frequency calculation arithmetic expression in
intel_pstate run.sh
- add missing cpupower dependency check intel_pstate run.sh
- fix idmap_mount_tree_invalid test failure due to incorrect argument
- fix watchdog-test run leaving the watchdog timer enabled causing
system reboot. With this fix, the test disables the watchdog timer
when it gets terminated with SIGTERM, SIGKILL, and SIGQUIT in addition
to SIGINT
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Merge tag 'linux_kselftest-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
- fix syntax error in frequency calculation arithmetic expression in
intel_pstate run.sh
- add missing cpupower dependency check intel_pstate run.sh
- fix idmap_mount_tree_invalid test failure due to incorrect argument
- fix watchdog-test run leaving the watchdog timer enabled causing
system reboot. With this fix, the test disables the watchdog timer
when it gets terminated with SIGTERM, SIGKILL, and SIGQUIT in
addition to SIGINT
* tag 'linux_kselftest-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/watchdog-test: Fix system accidentally reset after watchdog-test
selftests/intel_pstate: check if cpupower is installed
selftests/intel_pstate: fix operand expected error
selftests/mount_setattr: fix idmap_mount_tree_invalid failed to run
Toolchain and infrastructure:
- Avoid build errors with old 'rustc's without LLVM patch version
(important since it impacts people that do not even enable Rust).
- Update LLVM version for 'HAVE_CFI_ICALL_NORMALIZE_INTEGERS' in
'depends on' condition (the fix was eventually backported rather than
land in LLVM 19).
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Merge tag 'rust-fixes-6.12-3' of https://github.com/Rust-for-Linux/linux
Pull rust fixes from Miguel Ojeda:
"Toolchain and infrastructure:
- Avoid build errors with old 'rustc's without LLVM patch version
(important since it impacts people that do not even enable Rust)
- Update LLVM version for 'HAVE_CFI_ICALL_NORMALIZE_INTEGERS' in
'depends on' condition (the fix was eventually backported rather
than land in LLVM 19)"
* tag 'rust-fixes-6.12-3' of https://github.com/Rust-for-Linux/linux:
cfi: tweak llvm version for HAVE_CFI_ICALL_NORMALIZE_INTEGERS
kbuild: rust: avoid errors with old `rustc`s without LLVM patch version
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Merge tag 'pci-v6.12-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fix from Bjorn Helgaas:
- Enable device-specific ACS-like functionality even if the device
doesn't advertise an ACS capability, which got broken when adding
fancy ACS kernel parameter (Jason Gunthorpe)
* tag 'pci-v6.12-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI: Fix pci_enable_acs() support for the ACS quirks
xe:
- Fix missing HPD interrupt enabling, bringing one PM refactor with it
- Workaround LNL GGTT invalidation not being visible to GuC
- Avoid getting jobs stuck without a protecting timeout
ivpu:
- Fix firewall IRQ handling
panthor:
- Fix firmware initialization wrt page sizes
- Fix handling and reporting of dead job groups
sched:
- Guarantee forward progress via WC_MEM_RECLAIM
tests:
- Fix memory leak in drm_display_mode_from_cea_vic()
amdgpu:
- DCN 3.5 fix
- Vangogh SMU KASAN fix
- SMU 13 profile reporting fix
mediatek:
- Fix degradation problem of alpha blending
- Fix color format MACROs in OVL
- Fix get efuse issue for MT8188 DPTX
- Fix potential NULL dereference in mtk_crtc_destroy()
- Correct dpi power-domains property
- Add split subschema property constraints
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Merge tag 'drm-fixes-2024-11-02' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Regular fixes pull, nothing too out of the ordinary, the mediatek
fixes came in a batch that I might have preferred a bit earlier but
all seem fine, otherwise regular xe/amdgpu and a few misc ones.
xe:
- Fix missing HPD interrupt enabling, bringing one PM refactor with it
- Workaround LNL GGTT invalidation not being visible to GuC
- Avoid getting jobs stuck without a protecting timeout
ivpu:
- Fix firewall IRQ handling
panthor:
- Fix firmware initialization wrt page sizes
- Fix handling and reporting of dead job groups
sched:
- Guarantee forward progress via WC_MEM_RECLAIM
tests:
- Fix memory leak in drm_display_mode_from_cea_vic()
amdgpu:
- DCN 3.5 fix
- Vangogh SMU KASAN fix
- SMU 13 profile reporting fix
mediatek:
- Fix degradation problem of alpha blending
- Fix color format MACROs in OVL
- Fix get efuse issue for MT8188 DPTX
- Fix potential NULL dereference in mtk_crtc_destroy()
- Correct dpi power-domains property
- Add split subschema property constraints"
* tag 'drm-fixes-2024-11-02' of https://gitlab.freedesktop.org/drm/kernel: (27 commits)
drm/xe: Don't short circuit TDR on jobs not started
drm/xe: Add mmio read before GGTT invalidate
drm/tests: hdmi: Fix memory leaks in drm_display_mode_from_cea_vic()
drm/connector: hdmi: Fix memory leak in drm_display_mode_from_cea_vic()
drm/tests: helpers: Add helper for drm_display_mode_from_cea_vic()
drm/panthor: Report group as timedout when we fail to properly suspend
drm/panthor: Fail job creation when the group is dead
drm/panthor: Fix firmware initialization on systems with a page size > 4k
accel/ivpu: Fix NOC firewall interrupt handling
drm/xe/display: Add missing HPD interrupt enabling during non-d3cold RPM resume
drm/xe/display: Separate the d3cold and non-d3cold runtime PM handling
drm/xe: Remove runtime argument from display s/r functions
drm/amdgpu/smu13: fix profile reporting
drm/amd/pm: Vangogh: Fix kernel memory out of bounds write
Revert "drm/amd/display: update DML2 policy EnhancedPrefetchScheduleAccelerationFinal DCN35"
drm/sched: Mark scheduler work queues with WQ_MEM_RECLAIM
drm/tegra: Fix NULL vs IS_ERR() check in probe()
dt-bindings: display: mediatek: split: add subschema property constraints
dt-bindings: display: mediatek: dpi: correct power-domains property
drm/mediatek: Fix potential NULL dereference in mtk_crtc_destroy()
...
- Fix crashes when running with cxl-test code
- Fix Trace DRAM Event Record field decodes
- Fix module/built in initialization order errors
- Fix use after free on decoder shutdowns
- Fix out of order decoder allocations
- Improve cxl-test to better reflect real world systems
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Merge tag 'cxl-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull cxl fixes from Ira Weiny:
"The bulk of these fixes center around an initialization order bug
reported by Gregory Price and some additional fall out from the
debugging effort.
In summary, cxl_acpi and cxl_mem race and previously worked because of
a bus_rescan_devices() while testing without modules built in.
Unfortunately with modules built in the rescan would fail due to the
cxl_port driver being registered late via the build order. Furthermore
it was found bus_rescan_devices() did not guarantee a probe barrier
which CXL was expecting. Additional fixes to cxl-test and decoder
allocation came along as they were found in this debugging effort.
The other fixes are pretty minor but one affects trace point data seen
by user space.
Summary:
- Fix crashes when running with cxl-test code
- Fix Trace DRAM Event Record field decodes
- Fix module/built in initialization order errors
- Fix use after free on decoder shutdowns
- Fix out of order decoder allocations
- Improve cxl-test to better reflect real world systems"
* tag 'cxl-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/test: Improve init-order fidelity relative to real-world systems
cxl/port: Prevent out-of-order decoder allocation
cxl/port: Fix use-after-free, permit out-of-order decoder shutdown
cxl/acpi: Ensure ports ready at cxl_acpi_probe() return
cxl/port: Fix cxl_bus_rescan() vs bus_rescan_devices()
cxl/port: Fix CXL port initialization order when the subsystem is built-in
cxl/events: Fix Trace DRAM Event Record
cxl/core: Return error when cxl_endpoint_gather_bandwidth() handles a non-PCI device
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Merge tag 'io_uring-6.12-20241101' of git://git.kernel.dk/linux
Pull io_uring fix from Jens Axboe:
- Fix not honoring IOCB_NOWAIT for starting buffered writes in terms of
calling sb_start_write(), leading to a deadlock if someone is
attempting to freeze the file system with writes in progress, as each
side will end up waiting for the other to make progress.
* tag 'io_uring-6.12-20241101' of git://git.kernel.dk/linux:
io_uring/rw: fix missing NOWAIT check for O_DIRECT start write
Make the ACPI CPPC library use a raw spinlock for operations carried
out in scheduler context via the schedutil governor and the ACPI CPPC
cpufreq driver (Pierre Gondois).
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Merge tag 'acpi-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Make the ACPI CPPC library use a raw spinlock for operations carried
out in scheduler context via the schedutil governor and the ACPI CPPC
cpufreq driver (Pierre Gondois)"
* tag 'acpi-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: CPPC: Make rmw_lock a raw_spin_lock
- fix an issue with using an uninitialized variable in GPIO swnode code
- add a missing return value check for devm_mutex_init()
- fix an old issue with debugfs output
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Merge tag 'gpio-fixes-for-v6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix an uninitialized variable in GPIO swnode code
- add a missing return value check for devm_mutex_init()
- fix an old issue with debugfs output
* tag 'gpio-fixes-for-v6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpiolib: fix debugfs dangling chip separator
gpiolib: fix debugfs newline separators
gpio: sloppy-logic-analyzer: Check for error code from devm_mutex_init() call
gpio: fix uninit-value in swnode_find_gpio
- Fix missing HPD interrupt enabling, bringing one PM refactor with it
(Imre / Maarten)
- Workaround LNL GGTT invalidation not being visible to GuC
(Matthew Brost)
- Avoid getting jobs stuck without a protecting timeout (Matthew Brost)
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Merge tag 'drm-xe-fixes-2024-10-31' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
- Fix missing HPD interrupt enabling, bringing one PM refactor with it
(Imre / Maarten)
- Workaround LNL GGTT invalidation not being visible to GuC
(Matthew Brost)
- Avoid getting jobs stuck without a protecting timeout (Matthew Brost)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/tsbftadm7owyizzdaqnqu7u4tqggxgeqeztlfvmj5fryxlfomi@5m5bfv2zvzmw
* A fix that avoids accessing the early boot ACPI tables via unsafe
memory attributes, which can result in incorrect ACPI table data
appearing. This can cause all sorts of bad behavior.
* A fix to avoid compiler-insert library calls in the VDSO.
* GCC+Rust builds have been disabled, to avoid issues related to ISA
string mismatched between the GCC and LLVM Rust implementations.
* The NX flag is now set in the EFI PE/COFF headers, which is necessary
for some distro GRUB versions to boot images.
* A fix to avoid leaking DT node reference counts on ACPI systems during
cache info parsing.
* CPU numbers are now printed as unsigned values during hotplug.
* A pair of build fixes for usused macros, which can trigger warnings on
some configurations.
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Merge tag 'riscv-for-linus-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- Avoid accessing the early boot ACPI tables via unsafe memory
attributes, which can result in incorrect ACPI table data appearing.
This can cause all sorts of bad behavior.
- Avoid compiler-inserted library calls in the VDSO.
- GCC+Rust builds have been disabled, to avoid issues related to ISA
string mismatched between the GCC and LLVM Rust implementations.
- The NX flag is now set in the EFI PE/COFF headers, which is necessary
for some distro GRUB versions to boot images.
- A fix to avoid leaking DT node reference counts on ACPI systems
during cache info parsing.
- CPU numbers are now printed as unsigned values during hotplug.
- A pair of build fixes for usused macros, which can trigger warnings
on some configurations.
* tag 'riscv-for-linus-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Remove duplicated GET_RM
riscv: Remove unused GENERATING_ASM_OFFSETS
riscv: Use '%u' to format the output of 'cpu'
riscv: Prevent a bad reference count on CPU nodes
riscv: efi: Set NX compat flag in PE/COFF header
RISC-V: disallow gcc + rust builds
riscv: Do not use fortify in early code
RISC-V: ACPI: fix early_ioremap to early_memremap
riscv: vdso: Prevent the compiler from inserting calls to memset()
