Add a new socket command which returns tx time stamps to the user. It
provide an alternative to the existing error queue recvmsg interface.
The command works in a polled multishot mode, which means io_uring will
poll the socket and keep posting timestamps until the request is
cancelled or fails in any other way (e.g. with no space in the CQ). It
reuses the net infra and grabs timestamps from the socket's error queue.
The command requires IORING_SETUP_CQE32. All non-final CQEs (marked with
IORING_CQE_F_MORE) have cqe->res set to the tskey, and the upper 16 bits
of cqe->flags keep tstype (i.e. offset by IORING_CQE_BUFFER_SHIFT). The
timevalue is store in the upper part of the extended CQE. The final
completion won't have IORING_CQE_F_MORE and will have cqe->res storing
0/error.
Suggested-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/92ee66e6b33b8de062a977843d825f58f21ecd37.1750065793.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Add a helper for posting 32 byte CQEs in a multishot mode and add a cmd
helper on top. As it specifically works with requests, the helper ignore
the passed in cqe->user_data and sets it to the one stored in the
request.
The command helper is only valid with multishot requests.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/c29d7720c16e1f981cfaa903df187138baa3946b.1750065793.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Some commands like timestamping in the next patch can make use of
multishot polling, i.e. REQ_F_APOLL_MULTISHOT. Add support for that,
which is condensed in a single helper called io_cmd_poll_multishot().
The user who wants to continue with a request in a multishot mode must
call the function, and only if it returns 0 the user is free to proceed.
Apart from normal terminal errors, it can also end up with -EIOCBQUEUED,
in which case the user must forward it to the core io_uring. It's
forbidden to use task work while the request is executing in a multishot
mode.
The API is not foolproof, hence it's not exported to modules nor exposed
in public headers.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/bcf97c31659662c72b69fc8fcdf2a88cfc16e430.1750065793.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In preparation to allowing commands to do file polling, add a helper
that takes the desired poll event mask and arms it for polling. We won't
be able to use io_arm_poll_handler() with IORING_OP_URING_CMD as it
tries to infer the mask from the opcode data, and we can't unify it
across all commands.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7ee5633f2dc45fd15243f1a60965f7e30e1c48e8.1750065793.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
To test and profile the overhead of io_uring task_work and the various
types of it, add IORING_NOP_TW which tells nop to signal completions
through task_work rather than complete them inline.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
uring_cmd currently copies the full SQE at prep time, just in case it
needs it to be stable. However, for inline completions or requests that
get queued up on the device side, there's no need to ever copy the SQE.
This is particularly important, as various use cases of uring_cmd will
be using 128b sized SQEs.
Opt in to using ->sqe_copy() to let the core of io_uring decide when to
copy SQEs. This callback will only be called if it is safe to do so.
Reviewed-by: Caleb Sander Mateos <csander@purestorage.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Will be called by the core of io_uring, if inline issue is not going
to be tried for a request. Opcodes can define this handler to defer
copying of SQE data that should remain stable.
Only called if IO_URING_F_INLINE is set. If it isn't set, then there's a
bug in the core handling of this, and -EFAULT will be returned instead
to terminate the request. This will trigger a WARN_ON_ONCE(). Don't
expect this to ever trigger, and down the line this can be removed.
Reviewed-by: Caleb Sander Mateos <csander@purestorage.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Set when the execution of the request is done inline from the system
call itself. Any deferred issue will never have this flag set.
Reviewed-by: Caleb Sander Mateos <csander@purestorage.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
- subsystem: convert drivers to use recent callbacks of struct i2c_algorithm
A typical after-rc1 cleanup, which I couldn't send in time for rc2
- tegra: fix YAML conversion of device tree bindings
- k1: re-add a check which got lost during upstreaming
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Merge tag 'i2c-for-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
- subsystem: convert drivers to use recent callbacks of struct
i2c_algorithm A typical after-rc1 cleanup, which I couldn't send in
time for rc2
- tegra: fix YAML conversion of device tree bindings
- k1: re-add a check which got lost during upstreaming
* tag 'i2c-for-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: k1: check for transfer error
i2c: use inclusive callbacks in struct i2c_algorithm
dt-bindings: i2c: nvidia,tegra20-i2c: Specify the required properties
alternatives-patched doesn't get mishandled by out-of-order modifications,
leading to it overflowing and causing page faults when patching
- Avoid an infinite loop when early code does a ranged TLB invalidation before
the broadcast TLB invalidation count of how many pages it can flush, has
been read from CPUID
- Fix a CONFIG_MODULES typo
- Disable broadcast TLB invalidation when PTI is enabled to avoid an overflow
of the bitmap tracking dynamic ASIDs which need to be flushed when the
kernel switches between the user and kernel address space
- Handle the case of a CPU going offline and thus reporting zeroes when
reading top-level events in the resctrl code
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Merge tag 'x86_urgent_for_v6.16_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Make sure the array tracking which kernel text positions need to be
alternatives-patched doesn't get mishandled by out-of-order
modifications, leading to it overflowing and causing page faults when
patching
- Avoid an infinite loop when early code does a ranged TLB invalidation
before the broadcast TLB invalidation count of how many pages it can
flush, has been read from CPUID
- Fix a CONFIG_MODULES typo
- Disable broadcast TLB invalidation when PTI is enabled to avoid an
overflow of the bitmap tracking dynamic ASIDs which need to be
flushed when the kernel switches between the user and kernel address
space
- Handle the case of a CPU going offline and thus reporting zeroes when
reading top-level events in the resctrl code
* tag 'x86_urgent_for_v6.16_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/alternatives: Fix int3 handling failure from broken text_poke array
x86/mm: Fix early boot use of INVPLGB
x86/its: Fix an ifdef typo in its_alloc()
x86/mm: Disable INVLPGB when PTI is enabled
x86,fs/resctrl: Remove inappropriate references to cacheinfo in the resctrl subsystem
- Properly initialize work context when allocating it
- Remove a method tracking when managed interrupts are suspended during
hotplug, in favor of the code using a IRQ disable depth tracking now,
and have interrupts get properly enabled again on restore
- Make sure multiple CPUs getting hotplugged don't cause wrong tracking of the
managed IRQ disable depth
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Merge tag 'irq_urgent_for_v6.16_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Borislav Petkov:
- Fix missing prototypes warnings
- Properly initialize work context when allocating it
- Remove a method tracking when managed interrupts are suspended during
hotplug, in favor of the code using a IRQ disable depth tracking now,
and have interrupts get properly enabled again on restore
- Make sure multiple CPUs getting hotplugged don't cause wrong tracking
of the managed IRQ disable depth
* tag 'irq_urgent_for_v6.16_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/ath79-misc: Fix missing prototypes warnings
genirq/irq_sim: Initialize work context pointers properly
genirq/cpuhotplug: Restore affinity even for suspended IRQ
genirq/cpuhotplug: Rebalance managed interrupts across multi-CPU hotplug
same hw events features
- Avoid a deadlock when throttling events
- Document the perf event states more
- Make sure a number of perf paths switching off or rescheduling events call
perf_cgroup_event_disable()
- Make sure perf does task sampling before its userspace mapping is torn down,
and not after
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Merge tag 'perf_urgent_for_v6.16_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Avoid a crash on a heterogeneous machine where not all cores support
the same hw events features
- Avoid a deadlock when throttling events
- Document the perf event states more
- Make sure a number of perf paths switching off or rescheduling events
call perf_cgroup_event_disable()
- Make sure perf does task sampling before its userspace mapping is
torn down, and not after
* tag 'perf_urgent_for_v6.16_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Fix crash in icl_update_topdown_event()
perf: Fix the throttle error of some clock events
perf: Add comment to enum perf_event_state
perf/core: Fix WARN in perf_cgroup_switch()
perf: Fix dangling cgroup pointer in cpuctx
perf: Fix cgroup state vs ERROR
perf: Fix sample vs do_exit()
that two threads requesting that simultaneously cannot get to inconsistent
state
- Reject negative NUMA nodes earlier in the futex NUMA interface handling code
- Selftests fixes
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Merge tag 'locking_urgent_for_v6.16_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Borislav Petkov:
- Make sure the switch to the global hash is requested always under a
lock so that two threads requesting that simultaneously cannot get to
inconsistent state
- Reject negative NUMA nodes earlier in the futex NUMA interface
handling code
- Selftests fixes
* tag 'locking_urgent_for_v6.16_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Verify under the lock if hash can be replaced
futex: Handle invalid node numbers supplied by user
selftests/futex: Set the home_node in futex_numa_mpol
selftests/futex: getopt() requires int as return value.
- Fix another set of FP/SIMD/SVE bugs affecting NV, and plugging some
missing synchronisation
- A small fix for the irqbypass hook fixes, tightening the check and
ensuring that we only deal with MSI for both the old and the new
route entry
- Rework the way the shadow LRs are addressed in a nesting
configuration, plugging an embarrassing bug as well as simplifying
the whole process
- Add yet another fix for the dreaded arch_timer_edge_cases selftest
RISC-V:
- Fix the size parameter check in SBI SFENCE calls
- Don't treat SBI HFENCE calls as NOPs
x86 TDX:
- Complete API for handling complex TDVMCALLs in userspace. This was
delayed because the spec lacked a way for userspace to deny supporting
these calls; the new exit code is now approved.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Fix another set of FP/SIMD/SVE bugs affecting NV, and plugging some
missing synchronisation
- A small fix for the irqbypass hook fixes, tightening the check and
ensuring that we only deal with MSI for both the old and the new
route entry
- Rework the way the shadow LRs are addressed in a nesting
configuration, plugging an embarrassing bug as well as simplifying
the whole process
- Add yet another fix for the dreaded arch_timer_edge_cases selftest
RISC-V:
- Fix the size parameter check in SBI SFENCE calls
- Don't treat SBI HFENCE calls as NOPs
x86 TDX:
- Complete API for handling complex TDVMCALLs in userspace.
This was delayed because the spec lacked a way for userspace to
deny supporting these calls; the new exit code is now approved"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: TDX: Exit to userspace for GetTdVmCallInfo
KVM: TDX: Handle TDG.VP.VMCALL<GetQuote>
KVM: TDX: Add new TDVMCALL status code for unsupported subfuncs
KVM: arm64: VHE: Centralize ISBs when returning to host
KVM: arm64: Remove cpacr_clear_set()
KVM: arm64: Remove ad-hoc CPTR manipulation from kvm_hyp_handle_fpsimd()
KVM: arm64: Remove ad-hoc CPTR manipulation from fpsimd_sve_sync()
KVM: arm64: Reorganise CPTR trap manipulation
KVM: arm64: VHE: Synchronize CPTR trap deactivation
KVM: arm64: VHE: Synchronize restore of host debug registers
KVM: arm64: selftests: Close the GIC FD in arch_timer_edge_cases
KVM: arm64: Explicitly treat routing entry type changes as changes
KVM: arm64: nv: Fix tracking of shadow list registers
RISC-V: KVM: Don't treat SBI HFENCE calls as NOPs
RISC-V: KVM: Fix the size parameter check in SBI SFENCE calls
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Merge tag 'v6.16-rc2-smb3-client-fixes-v2' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- Multichannel channel allocation fix for Kerberos mounts
- Two reconnect fixes
- Fix netfs_writepages crash with smbdirect/RDMA
- Directory caching fix
- Three minor cleanup fixes
- Log error when close cached dirs fails
* tag 'v6.16-rc2-smb3-client-fixes-v2' of git://git.samba.org/sfrench/cifs-2.6:
smb: minor fix to use SMB2_NTLMV2_SESSKEY_SIZE for auth_key size
smb: minor fix to use sizeof to initialize flags_string buffer
smb: Use loff_t for directory position in cached_dirents
smb: Log an error when close_all_cached_dirs fails
cifs: Fix prepare_write to negotiate wsize if needed
smb: client: fix max_sge overflow in smb_extract_folioq_to_rdma()
smb: client: fix first command failure during re-negotiation
cifs: Remove duplicate fattr->cf_dtype assignment from wsl_to_fattr() function
smb: fix secondary channel creation issue with kerberos by populating hostname when adding channels
If spacemit_i2c_xfer_msg() times out waiting for a message transfer to
complete, or if the hardware reports an error, it returns a negative
error code (-ETIMEDOUT, -EAGAIN, -ENXIO. or -EIO).
The sole caller of spacemit_i2c_xfer_msg() is spacemit_i2c_xfer(),
which is the i2c_algorithm->xfer callback function. It currently
does not save the value returned by spacemit_i2c_xfer_msg().
The result is that transfer errors go unreported, and a caller
has no indication anything is wrong.
When this code was out for review, the return value *was* checked
in early versions. But for some reason, that assignment got dropped
between versions 5 and 6 of the series, perhaps related to reworking
the code to merge spacemit_i2c_xfer_core() into spacemit_i2c_xfer().
Simply assigning the value returned to "ret" fixes the problem.
Fixes: 5ea558473f ("i2c: spacemit: add support for SpacemiT K1 SoC")
Signed-off-by: Alex Elder <elder@riscstar.com>
Cc: <stable@vger.kernel.org> # v6.15+
Reviewed-by: Troy Mitchell <troymitchell988@gmail.com>
Link: https://lore.kernel.org/r/20250616125137.1555453-1-elder@riscstar.com
Signed-off-by: Andi Shyti <andi@smida.it>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
- Two fixes for commits in the nfsd-6.16 merge
- One fix for the recently-added NFSD netlink facility
- One fix for a remote SunRPC crasher
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Merge tag 'nfsd-6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
- Two fixes for commits in the nfsd-6.16 merge
- One fix for the recently-added NFSD netlink facility
- One fix for a remote SunRPC crasher
* tag 'nfsd-6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
sunrpc: handle SVC_GARBAGE during svc auth processing as auth error
nfsd: use threads array as-is in netlink interface
SUNRPC: Cleanup/fix initial rq_pages allocation
NFSD: Avoid corruption of a referring call list
Replaced hardcoded value 16 with SMB2_NTLMV2_SESSKEY_SIZE
in the auth_key definition and memcpy call.
Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Replaced hardcoded length with sizeof(flags_string).
Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Change the pos field in struct cached_dirents from int to loff_t
to support large directory offsets. This avoids overflow and
matches kernel conventions for directory positions.
Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Under low-memory conditions, close_all_cached_dirs() can't move the
dentries to a separate list to dput() them once the locks are dropped.
This will result in a "Dentry still in use" error, so add an error
message that makes it clear this is what happened:
[ 495.281119] CIFS: VFS: \\otters.example.com\share Out of memory while dropping dentries
[ 495.281595] ------------[ cut here ]------------
[ 495.281887] BUG: Dentry ffff888115531138{i=78,n=/} still in use (2) [unmount of cifs cifs]
[ 495.282391] WARNING: CPU: 1 PID: 2329 at fs/dcache.c:1536 umount_check+0xc8/0xf0
Also, bail out of looping through all tcons as soon as a single
allocation fails, since we're already in trouble, and kmalloc() attempts
for subseqeuent tcons are likely to fail just like the first one did.
Signed-off-by: Paul Aurich <paul@darkrain42.org>
Acked-by: Bharath SM <bharathsm@microsoft.com>
Suggested-by: Ruben Devos <rdevos@oxya.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Fix cifs_prepare_write() to negotiate the wsize if it is unset.
Reviewed-by: Shyam Prasad N <nspmangalore@gmail.com>
Reviewed-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Paulo Alcantara <pc@manguebit.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
cc: linux-cifs@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
after fabc4ed200f9, server_unresponsive add a condition to check whether client
need to reconnect depending on server->lstrp. When client failed to reconnect
for some time and abort connection, server->lstrp is updated for the last time.
In the following scene, server->lstrp is too old. This cause next command
failure in re-negotiation rather than waiting for re-negotiation done.
1. mount -t cifs -o username=Everyone,echo_internal=10 //$server_ip/export /mnt
2. ssh $server_ip "echo b > /proc/sysrq-trigger &"
3. ls /mnt
4. sleep 21s
5. ssh $server_ip "service firewalld stop"
6. ls # return EHOSTDOWN
If the interval between 5 and 6 is too small, 6 may trigger sending negotiation
request. Before backgrounding cifsd thread try to receive negotiation response
from server in cifs_readv_from_socket, server_unresponsive may trigger
cifs_reconnect which cause 6 to be failed:
ls thread
----------------
smb2_negotiate
server->tcpStatus = CifsInNegotiate
compound_send_recv
wait_for_compound_request
cifsd thread
----------------
cifs_readv_from_socket
server_unresponsive
server->tcpStatus == CifsInNegotiate && jiffies > server->lstrp + 20s
cifs_reconnect
cifs_abort_connection: mid_state = MID_RETRY_NEEDED
ls thread
----------------
cifs_sync_mid_result return EAGAIN
smb2_negotiate return EHOSTDOWN
Though server->lstrp means last server response time, it is updated in
cifs_abort_connection and cifs_get_tcp_session. We can also update server->lstrp
before switching into CifsInNegotiate state to avoid failure in 6.
Fixes: 7ccc146546 ("smb: client: fix hang in wait_for_response() for negproto")
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Acked-by: Meetakshi Setiya <msetiya@microsoft.com>
Signed-off-by: zhangjian <zhangjian496@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Merge tag 'io_uring-6.16-20250621' of git://git.kernel.dk/linux
Pull io_uring fix from Jens Axboe:
"A single fix to hopefully wrap up the saga of receive bundles"
* tag 'io_uring-6.16-20250621' of git://git.kernel.dk/linux:
io_uring/net: always use current transfer count for buffer put
Fix a crash in ACPICA while attempting to evaluate a control method
that expects more arguments than are being passed to it, which was
exposed by a defective firmware update from a prominent OEM on multiple
systems (Rafael Wysocki).
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Merge tag 'acpi-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix a crash in ACPICA while attempting to evaluate a control method
that expects more arguments than are being passed to it, which was
exposed by a defective firmware update from a prominent OEM on
multiple systems (Rafael Wysocki)"
* tag 'acpi-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPICA: Refuse to evaluate a method if arguments are missing
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Merge tag 'pci-v6.16-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI fixes from Bjorn Helgaas:
- Set up runtime PM even for devices that lack a PM Capability as we
did before 4d4c10f763 ("PCI: Explicitly put devices into D0 when
initializing"), which broke resume in some VFIO scenarios (Mario
Limonciello)
- Ignore pciehp Presence Detect Changed events caused by DPC, even if
they occur after a Data Link Layer State Changed event, to fix a VFIO
GPU passthrough regression in v6.13 (Lukas Wunner)
* tag 'pci-v6.16-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI: pciehp: Ignore belated Presence Detect Changed caused by DPC
PCI/PM: Set up runtime PM even for devices without PCI PM
Instead of crashing the kernel, a warning and graceful return is better.
[1] https://lore.kernel.org/all/aEnVuzK7VhGSizWj@pc636/
Uladzislau Rezki (Sony) (1):
rcu: Return early if callback is not specified
kernel/rcu/tree.c | 4 ++++
1 file changed, 4 insertions(+)
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Merge tag 'rcu/fixes-for-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU fix from Joel Fernandes:
"We recently got a report of a crash [1] with misuse of call_rcu().
Instead of crashing the kernel, a warning and graceful return is
better:
- rcu: Return early if callback is not specified (Uladzislau Rezki)"
Link: https://lore.kernel.org/all/aEnVuzK7VhGSizWj@pc636/ [1]
* tag 'rcu/fixes-for-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux:
rcu: Return early if callback is not specified
- Fix some file descriptor leaks that stand out with recent changes to
'perf list'.
- Fix prctl include to fix building 'perf bench futex' hash with musl libc.
- Restrict 'perf test' uniquifying entry to machines with 'uncore_imc' PMUs.
- Document new output fields (op, cache, mem, dtlb, snoop) used with
'perf mem'.
- Synchronize kernel header copies.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.16-1-2025-06-20' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix some file descriptor leaks that stand out with recent changes to
'perf list'
- Fix prctl include to fix building 'perf bench futex' hash with musl
libc
- Restrict 'perf test' uniquifying entry to machines with 'uncore_imc'
PMUs
- Document new output fields (op, cache, mem, dtlb, snoop) used with
'perf mem'
- Synchronize kernel header copies
* tag 'perf-tools-fixes-for-v6.16-1-2025-06-20' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
tools headers x86 cpufeatures: Sync with the kernel sources
perf bench futex: Fix prctl include in musl libc
perf test: Directory file descriptor leak
perf evsel: Missed close() when probing hybrid core PMUs
tools headers: Synchronize linux/bits.h with the kernel sources
tools arch amd ibs: Sync ibs.h with the kernel sources
tools arch x86: Sync the msr-index.h copy with the kernel sources
tools headers: Syncronize linux/build_bug.h with the kernel sources
tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench'
tools headers UAPI: Sync linux/kvm.h with the kernel sources
tools headers UAPI: Sync the drm/drm.h with the kernel sources
perf beauty: Update copy of linux/socket.h with the kernel sources
tools headers UAPI: Sync kvm header with the kernel sources
tools headers x86 svm: Sync svm headers with the kernel sources
tools headers UAPI: Sync KVM's vmx.h header with the kernel sources
tools kvm headers arm64: Update KVM header from the kernel sources
tools headers UAPI: Sync linux/prctl.h with the kernel sources to pick FUTEX knob
perf mem: Document new output fields (op, cache, mem, dtlb, snoop)
tools headers: Update the fs headers with the kernel sources
perf test: Restrict uniquifying test to machines with 'uncore_imc'
adding the new mtd_master class, because it entirely fails the
partitioning if a specific Kconfig option is set. We need to think how
to handle that differently, so let's revert it as we need to get back to
the pen and paper situation again.
Otherwise the definition of some Winbond SPI NAND chips are receiving
some fixes (geometry and maximum frequency, mostly).
And finally a small memory leak gets also fixed.
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Merge tag 'mtd/fixes-for-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd fixes from Miquel Raynal:
"The main fix that really needs to get in is the revert of the patch
adding the new mtd_master class, because it entirely fails the
partitioning if a specific Kconfig option is set. We need to think how
to handle that differently, so let's revert it as we need to get back
to the pen and paper situation again.
Otherwise the definition of some Winbond SPI NAND chips are receiving
some fixes (geometry and maximum frequency, mostly).
And finally a small memory leak gets also fixed"
* tag 'mtd/fixes-for-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: spinand: fix memory leak of ECC engine conf
mtd: spinand: winbond: Prevent unsupported frequencies on dual/quad I/O variants
mtd: spinand: winbond: Increase maximum frequency on an octal operation
mtd: spinand: winbond: Fix W35N number of planes/LUN
Revert "mtd: core: always create master device"
Two small and obvious driver fixes.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two small and obvious driver fixes"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: elx: efct: Fix memory leak in efct_hw_parse_filter()
scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port()
ath79_misc_irq_init() was defined but unused since commit 51fa4f8912
("MIPS: ath79: drop legacy IRQ code"), so it's time to drop it.
The build also warns about a missing prototype of get_c0_perfcount_int().
Remove the stale leftover function and add the missing include.
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/OSBPR01MB167032D2017645200787AAEBBC72A@OSBPR01MB1670.jpnprd01.prod.outlook.com
Currently the call_rcu() API does not check whether a callback
pointer is NULL. If NULL is passed, rcu_core() will try to invoke
it, resulting in NULL pointer dereference and a kernel crash.
To prevent this and improve debuggability, this patch adds a check
for NULL and emits a kernel stack trace to help identify a faulty
caller.
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Exit to userspace for TDG.VP.VMCALL<GetTdVmCallInfo> via KVM_EXIT_TDX,
to allow userspace to provide information about the support of
TDVMCALLs when r12 is 1 for the TDVMCALLs beyond the GHCI base API.
GHCI spec defines the GHCI base TDVMCALLs: <GetTdVmCallInfo>, <MapGPA>,
<ReportFatalError>, <Instruction.CPUID>, <#VE.RequestMMIO>,
<Instruction.HLT>, <Instruction.IO>, <Instruction.RDMSR> and
<Instruction.WRMSR>. They must be supported by VMM to support TDX guests.
For GetTdVmCallInfo
- When leaf (r12) to enumerate TDVMCALL functionality is set to 0,
successful execution indicates all GHCI base TDVMCALLs listed above are
supported.
Update the KVM TDX document with the set of the GHCI base APIs.
- When leaf (r12) to enumerate TDVMCALL functionality is set to 1, it
indicates the TDX guest is querying the supported TDVMCALLs beyond
the GHCI base TDVMCALLs.
Exit to userspace to let userspace set the TDVMCALL sub-function bit(s)
accordingly to the leaf outputs. KVM could set the TDVMCALL bit(s)
supported by itself when the TDVMCALLs don't need support from userspace
after returning from userspace and before entering guest. Currently, no
such TDVMCALLs implemented, KVM just sets the values returned from
userspace.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com>
[Adjust userspace API. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Handle TDVMCALL for GetQuote to generate a TD-Quote.
GetQuote is a doorbell-like interface used by TDX guests to request VMM
to generate a TD-Quote signed by a service hosting TD-Quoting Enclave
operating on the host. A TDX guest passes a TD Report (TDREPORT_STRUCT) in
a shared-memory area as parameter. Host VMM can access it and queue the
operation for a service hosting TD-Quoting enclave. When completed, the
Quote is returned via the same shared-memory area.
KVM only checks the GPA from the TDX guest has the shared-bit set and drops
the shared-bit before exiting to userspace to avoid bleeding the shared-bit
into KVM's exit ABI. KVM forwards the request to userspace VMM (e.g. QEMU)
and userspace VMM queues the operation asynchronously. KVM sets the return
code according to the 'ret' field set by userspace to notify the TDX guest
whether the request has been queued successfully or not. When the request
has been queued successfully, the TDX guest can poll the status field in
the shared-memory area to check whether the Quote generation is completed
or not. When completed, the generated Quote is returned via the same
buffer.
Add KVM_EXIT_TDX as a new exit reason to userspace. Userspace is
required to handle the KVM exit reason as the initial support for TDX,
by reentering KVM to ensure that the TDVMCALL is complete. While at it,
add a note that KVM_EXIT_HYPERCALL also requires reentry with KVM_RUN.
Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com>
Tested-by: Mikko Ylinen <mikko.ylinen@linux.intel.com>
Acked-by: Kai Huang <kai.huang@intel.com>
[Adjust userspace API. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add the new TDVMCALL status code TDVMCALL_STATUS_SUBFUNC_UNSUPPORTED and
return it for unimplemented TDVMCALL subfunctions.
Returning TDVMCALL_STATUS_INVALID_OPERAND when a subfunction is not
implemented is vague because TDX guests can't tell the error is due to
the subfunction is not supported or an invalid input of the subfunction.
New GHCI spec adds TDVMCALL_STATUS_SUBFUNC_UNSUPPORTED to avoid the
ambiguity. Use it instead of TDVMCALL_STATUS_INVALID_OPERAND.
Before the change, for common guest implementations, when a TDX guest
receives TDVMCALL_STATUS_INVALID_OPERAND, it has two cases:
1. Some operand is invalid. It could change the operand to another value
retry.
2. The subfunction is not supported.
For case 1, an invalid operand usually means the guest implementation bug.
Since the TDX guest can't tell which case is, the best practice for
handling TDVMCALL_STATUS_INVALID_OPERAND is stopping calling such leaf,
treating the failure as fatal if the TDVMCALL is essential or ignoring
it if the TDVMCALL is optional.
With this change, TDVMCALL_STATUS_SUBFUNC_UNSUPPORTED could be sent to
old TDX guest that do not know about it, but it is expected that the
guest will make the same action as TDVMCALL_STATUS_INVALID_OPERAND.
Currently, no known TDX guest checks TDVMCALL_STATUS_INVALID_OPERAND
specifically; for example Linux just checks for success.
Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com>
[Return it for untrapped KVM_HC_MAP_GPA_RANGE. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- correct the ACPI GPIO access mode in gpio-loongson-64bit
- only obtain the interrupt for a single instance of the chip controlled
by gpio-mlxbf3
- fix an invalid value return from probe() in gpio-pca953x
- add missing MODULE_DEVICE_TABLE() to gpio-spacemit
- update the HiSilicon GPIO driver maintainer entry
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Merge tag 'gpio-fixes-for-v6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- correct the ACPI GPIO access mode in gpio-loongson-64bit
- only obtain the interrupt for a single instance of the chip
controlled by gpio-mlxbf3
- fix an invalid value return from probe() in gpio-pca953x
- add missing MODULE_DEVICE_TABLE() to gpio-spacemit
- update the HiSilicon GPIO driver maintainer entry
* tag 'gpio-fixes-for-v6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mlxbf3: only get IRQ for device instance 0
gpio: pca953x: fix wrong error probe return value
gpio: spacemit: Add missing MODULE_DEVICE_TABLE
gpio: loongson-64bit: Correct Loongson-7A2000 ACPI GPIO access mode
MAINTAINERS: Update HiSilicon GPIO driver maintainer
- Fix another set of FP/SIMD/SVE bugs affecting NV, and plugging some
missing synchronisation
- A small fix for the irqbypass hook fixes, tightening the check and
ensuring that we only deal with MSI for both the old and the new
route entry
- Rework the way the shadow LRs are addressed in a nesting
configuration, plugging an embarrassing bug as well as simplifying
the whole process
- Add yet another fix for the dreaded arch_timer_edge_cases selftest
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Merge tag 'kvmarm-fixes-6.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.16, take #3
- Fix another set of FP/SIMD/SVE bugs affecting NV, and plugging some
missing synchronisation
- A small fix for the irqbypass hook fixes, tightening the check and
ensuring that we only deal with MSI for both the old and the new
route entry
- Rework the way the shadow LRs are addressed in a nesting
configuration, plugging an embarrassing bug as well as simplifying
the whole process
- Add yet another fix for the dreaded arch_timer_edge_cases selftest
A collection of small fixes.
All changes are device-specific at this time.
- Fixes for Cirrus codecs with SoundWire, including firmware name
updates
- Fix for i.MX8 SoC DSP
- Usual HD-audio, USB-audio, and ASoC AMD quirks
- Fixes for legendary SoundBlaster AWE32 ISA device (a real one, we
still got a bug report after 25 years)
- Minor build fixes
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Merge tag 'sound-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes. All changes are device-specific at this
time:
- Fixes for Cirrus codecs with SoundWire, including firmware name
updates
- Fix for i.MX8 SoC DSP
- Usual HD-audio, USB-audio, and ASoC AMD quirks
- Fixes for legendary SoundBlaster AWE32 ISA device (a real one, we
still got a bug report after 25 years)
- Minor build fixes"
* tag 'sound-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (24 commits)
ALSA: hda/realtek: Enable headset Mic on Positivo P15X
ASoC: Intel: sof-function-topology-lib: Print out the unsupported dmic count
ASoC: doc: cs35l56: Add CS35L63 to the list of supported devices
ASoC: SOF: imx8: add core shutdown operation for imx8/imx8x
ALSA: hda/realtek: Add quirk for Asus GA605K
ALSA: hda/realtek: enable headset mic on Latitude 5420 Rugged
ASoC: amd: yc: update quirk data for HP Victus
ASoC: apple: mca: Drop default ARCH_APPLE in Kconfig
ALSA: usb-audio: Rename ALSA kcontrol PCM and PCM1 for the KTMicro sound card
ASoC: amd: yc: Add quirk for MSI Bravo 17 D7VF internal mic
ASoC: doc: cs35l56: Update to add new SoundWire firmware filename suffix
ASoC: cs35l56: Use SoundWire address as alternate firmware suffix on L56 B0
ASoC: cs35l56: Use SoundWire address as firmware name suffix for new silicon
ASoC: sdw_utils: Fix potential NULL pointer deref in is_sdca_endpoint_present()
ALSA: sb: Force to disable DMAs once when DMA mode is changed
ALSA: sb: Don't allow changing the DMA mode during operations
ALSA: hda/realtek: Add quirk for Asus GU605C
ALSA: hda/realtek: Fix built-in mic on ASUS VivoBook X513EA
ALSA: hda/realtek - Add mute LED support for HP Victus 16-s1xxx and HP Victus 15-fa1xxx
ALSA: ctxfi: Replace deprecated strcpy() with strscpy()
...
- Suppress KASAN false positive in stack unwinding code.
- Drop redundant reset of the GCS state on exec().
- Don't try to descend into a !present PMD when creating a huge vmap()
entry at the PUD level.
- Fix a small typo in the arm64 booting Documentation.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"There's nothing major (even the vmalloc one is just suppressing a
potential warning) but all worth having, nonetheless.
- Suppress KASAN false positive in stack unwinding code
- Drop redundant reset of the GCS state on exec()
- Don't try to descend into a !present PMD when creating a huge
vmap() entry at the PUD level
- Fix a small typo in the arm64 booting Documentation"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth()
arm64/gcs: Don't call gcs_free() during flush_gcs()
arm64: Restrict pagetable teardown to avoid false warning
docs: arm64: Fix ICC_SRE_EL2 register typo in booting.rst
A previous fix corrected the retry condition for when to continue a
current bundle, but it missed that the current (not the total) transfer
count also applies to the buffer put. If not, then for incrementally
consumed buffer rings repeated completions on the same request may end
up over consuming.
Reported-by: Roy Tang (ErgoniaTrading) <royonia@ergonia.io>
Cc: stable@vger.kernel.org
Fixes: 3a08988123 ("io_uring/net: only retry recv bundle for a full transfer")
Link: https://github.com/axboe/liburing/issues/1423
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Positivo P15X is equipped with ALC269VC, and needs a fix to make
the headset mic to work.
Also must to limits the internal microphone boost.
Signed-off-by: Edson Juliano Drosdeck <edson.drosdeck@gmail.com>
Link: https://patch.msgid.link/20250619191215.17203-1-edson.drosdeck@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A relatively large collection of fixes and updates that came in since
the merge window. Of note are a couple of Cirrus ones which change the
firmware naming for some newly added devices, and a fix from Laurentiu
for issues booting firmwares on the DSPs on i.MX8 SoCs.
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Merge tag 'asoc-fix-v6.16-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.16
A relatively large collection of fixes and updates that came in since
the merge window. Of note are a couple of Cirrus ones which change the
firmware naming for some newly added devices, and a fix from Laurentiu
for issues booting firmwares on the DSPs on i.MX8 SoCs.
Pavel Begunkov