Commit Graph

1335481 Commits

Author SHA1 Message Date
Hsin-chen Chuang
514a8e6d61 Bluetooth: Add ABI doc for sysfs reset
The functionality was implemented in commit 0f8a001374 ("Bluetooth:
Allow reset via sysfs")

Fixes: 0f8a001374 ("Bluetooth: Allow reset via sysfs")
Signed-off-by: Hsin-chen Chuang <chharry@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-01-29 15:23:34 -05:00
Hsin-chen Chuang
0983fb4799 Bluetooth: Fix possible infinite recursion of btusb_reset
The function enters infinite recursion if the HCI device doesn't support
GPIO reset: btusb_reset -> hdev->reset -> vendor_reset -> btusb_reset...

btusb_reset shouldn't call hdev->reset after commit f07d478090
("Bluetooth: Get rid of cmd_timeout and use the reset callback")

Fixes: f07d478090 ("Bluetooth: Get rid of cmd_timeout and use the reset callback")
Signed-off-by: Hsin-chen Chuang <chharry@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-01-29 15:23:18 -05:00
Douglas Anderson
e9087e8288 Bluetooth: btusb: mediatek: Add locks for usb_driver_claim_interface()
The documentation for usb_driver_claim_interface() says that "the
device lock" is needed when the function is called from places other
than probe(). This appears to be the lock for the USB interface
device. The Mediatek btusb code gets called via this path:

  Workqueue: hci0 hci_power_on [bluetooth]
  Call trace:
   usb_driver_claim_interface
   btusb_mtk_claim_iso_intf
   btusb_mtk_setup
   hci_dev_open_sync
   hci_power_on
   process_scheduled_works
   worker_thread
   kthread

With the above call trace the device lock hasn't been claimed. Claim
it.

Without this fix, we'd sometimes see the error "Failed to claim iso
interface". Sometimes we'd even see worse errors, like a NULL pointer
dereference (where `intf->dev.driver` was NULL) with a trace like:

  Call trace:
   usb_suspend_both
   usb_runtime_suspend
   __rpm_callback
   rpm_suspend
   pm_runtime_work
   process_scheduled_works

Both errors appear to be fixed with the proper locking.

Fixes: ceac1cb025 ("Bluetooth: btusb: mediatek: add ISO data transmission functions")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-01-29 15:19:30 -05:00
Linus Torvalds
ebbb8be421 Merge tag 'regulator-fix-v6.14-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
 "A couple of fixes that have come in during the merge window: one that
  operates the TPS6287x devices more within the design spec and can
  prevent current surges when changing voltages and another more trivial
  one for error message formatting"

* tag 'regulator-fix-v6.14-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: core: Add missing newline character
  regulator: TPS6287X: Use min/max uV to get VRANGE
2025-01-29 11:56:55 -08:00
Linus Torvalds
b2091a6482 Merge tag 'for-linus-6.14-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
 "Three minor fixes"

* tag 'for-linus-6.14-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: update pvcalls_front_accept prototype
  Grab mm lock before grabbing pt lock
  xen: pcpu: remove unnecessary __ref annotation
2025-01-29 11:39:20 -08:00
Linus Torvalds
9071080d1e Merge tag 'cxl-for-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull Compute Express Link (CXL) updates from Dave Jiang:
 "A tweak to the HMAT output that was acked by Rafael, a prep patch for
  CXL type2 devices support that's coming soon, refactoring of the CXL
  regblock enumeration code, and a series of patches to update the event
  records to CXL spec r3.1:

   - Move HMAT printouts to pr_debug()

   - Add CXL type2 support to cxl_dvsec_rr_decode() in preparation for
     type2 support

   - A series that updates CXL event records to spec r3.1 and related
     changes

   - Refactoring of cxl_find_regblock_instance() to count regblocks"

* tag 'cxl-for-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/core/regs: Refactor out functions to count regblocks of given type
  cxl/test: Update test code for event records to CXL spec rev 3.1
  cxl/events: Update Memory Module Event Record to CXL spec rev 3.1
  cxl/events: Update DRAM Event Record to CXL spec rev 3.1
  cxl/events: Update General Media Event Record to CXL spec rev 3.1
  cxl/events: Add Component Identifier formatting for CXL spec rev 3.1
  cxl/events: Update Common Event Record to CXL spec rev 3.1
  cxl/pci: Add CXL Type 1/2 support to cxl_dvsec_rr_decode()
  ACPI/HMAT: Move HMAT messages to pr_debug()
2025-01-29 11:23:22 -08:00
Linus Torvalds
aa5216a2b0 Merge tag 'powerpc-6.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Madhavan Srinivasan:

 - Fix to handle PE state in pseries_eeh_get_state()

 - Handle unset of tce window if it was never set

Thanks to Narayana Murty N, Ritesh Harjani (IBM), Shivaprasad G Bhat,
and Vaishnavi Bhat.

* tag 'powerpc-6.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/pseries/iommu: Don't unset window if it was never set
  powerpc/pseries/eeh: Fix get PE state translation
2025-01-29 10:55:04 -08:00
Linus Torvalds
fed3819bac Merge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull CRC cleanups from Eric Biggers:
 "Simplify the kconfig options for controlling which CRC implementations
  are built into the kernel, as was requested by Linus.

  This means making the option to disable the arch code visible only
  when CONFIG_EXPERT=y, and standardizing on a single generic
  implementation of CRC32"

* tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
  lib/crc32: remove other generic implementations
  lib/crc: simplify the kconfig options for CRC implementations
2025-01-29 10:50:28 -08:00
Linus Torvalds
af13ff1c33 Merge tag 'constfy-sysctl-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl
Pull sysctl table constification from Joel Granados:
 "All ctl_table declared outside of functions and that remain unmodified
  after initialization are const qualified.

  This prevents unintended modifications to proc_handler function
  pointers by placing them in the .rodata section.

  This is a continuation of the tree-wide effort started a few releases
  ago with the constification of the ctl_table struct arguments in the
  sysctl API done in 78eb4ea25c ("sysctl: treewide: constify the
  ctl_table argument of proc_handlers")"

* tag 'constfy-sysctl-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl:
  treewide: const qualify ctl_tables where applicable
2025-01-29 10:35:40 -08:00
Daniele Ceraolo Spurio
5bea40687c drm/i915/guc: Debug print LRC state entries only if the context is pinned
After the context is unpinned the backing memory can also be unpinned,
so any accesses via the lrc_reg_state pointer can end up in unmapped
memory. To avoid that, make sure to only access that memory if the
context is pinned when printing its info.

v2: fix newline alignment

Fixes: 28ff6520a3 ("drm/i915/guc: Update GuC debugfs to support new GuC")
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: <stable@vger.kernel.org> # v5.15+
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250115001334.3875347-1-daniele.ceraolospurio@intel.com
2025-01-29 10:14:51 -08:00
Linus Torvalds
92cc9acff7 Merge tag 'fuse-update-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
 "Add support for io-uring communication between kernel and userspace
  using IORING_OP_URING_CMD (Bernd Schubert). Following features enable
  gains in performance compared to the regular interface:

   - Allow processing multiple requests with less syscall overhead

   - Combine commit of old and fetch of new fuse request

   - CPU/NUMA affinity of queues

  Patches were reviewed by several people, including Pavel Begunkov,
  io-uring co-maintainer"

* tag 'fuse-update-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: prevent disabling io-uring on active connections
  fuse: enable fuse-over-io-uring
  fuse: block request allocation until io-uring init is complete
  fuse: {io-uring} Prevent mount point hang on fuse-server termination
  fuse: Allow to queue bg requests through io-uring
  fuse: Allow to queue fg requests through io-uring
  fuse: {io-uring} Make fuse_dev_queue_{interrupt,forget} non-static
  fuse: {io-uring} Handle teardown of ring entries
  fuse: Add io-uring sqe commit and fetch support
  fuse: {io-uring} Make hash-list req unique finding functions non-static
  fuse: Add fuse-io-uring handling into fuse_copy
  fuse: Make fuse_copy non static
  fuse: {io-uring} Handle SQEs - register commands
  fuse: make args->in_args[0] to be always the header
  fuse: Add fuse-io-uring design documentation
  fuse: Move request bits
  fuse: Move fuse_get_dev to header file
  fuse: rename to fuse_dev_end_requests and make non-static
2025-01-29 09:40:23 -08:00
Eric Biggers
5e3c1c48fa lib/crc32: remove other generic implementations
Now that we've standardized on the byte-by-byte implementation of CRC32
as the only generic implementation (see previous commit for the
rationale), remove the code for the other implementations.

Tested with crc_kunit.

Link: https://lore.kernel.org/r/20250123212904.118683-3-ebiggers@kernel.org
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
2025-01-29 09:10:35 -08:00
Eric Biggers
b0430f39de lib/crc: simplify the kconfig options for CRC implementations
Make the following simplifications to the kconfig options for choosing
CRC implementations for CRC32 and CRC_T10DIF:

1. Make the option to disable the arch-optimized code be visible only
   when CONFIG_EXPERT=y.
2. Make a single option control the inclusion of the arch-optimized code
   for all enabled CRC variants.
3. Make CRC32_SARWATE (a.k.a. slice-by-1 or byte-by-byte) be the only
   generic CRC32 implementation.

The result is there is now just one option, CRC_OPTIMIZATIONS, which is
default y and can be disabled only when CONFIG_EXPERT=y.

Rationale:

1. Enabling the arch-optimized code is nearly always the right choice.
   However, people trying to build the tiniest kernel possible would
   find some use in disabling it.  Anything we add to CRC32 is de facto
   unconditional, given that CRC32 gets selected by something in nearly
   all kernels.  And unfortunately enabling the arch CRC code does not
   eliminate the need to build the generic CRC code into the kernel too,
   due to CPU feature dependencies.  The size of the arch CRC code will
   also increase slightly over time as more CRC variants get added and
   more implementations targeting different instruction set extensions
   get added.  Thus, it seems worthwhile to still provide an option to
   disable it, but it should be considered an expert-level tweak.

2. Considering the use case described in (1), there doesn't seem to be
   sufficient value in making the arch-optimized CRC code be
   independently configurable for different CRC variants.  Note also
   that multiple variants were already grouped together, e.g.
   CONFIG_CRC32 actually enables three different variants of CRC32.

3. The bit-by-bit implementation is uselessly slow, whereas slice-by-n
   for n=4 and n=8 use tables that are inconveniently large: 4096 bytes
   and 8192 bytes respectively, compared to 1024 bytes for n=1.  Higher
   n gives higher instruction-level parallelism, so higher n easily wins
   on traditional microbenchmarks on most CPUs.  However, the larger
   tables, which are accessed randomly, can be harmful in real-world
   situations where the dcache may be cold or useful data may need be
   evicted from the dcache.  Meanwhile, today most architectures have
   much faster CRC32 implementations using dedicated CRC32 instructions
   or carryless multiplication instructions anyway, which make the
   generic code obsolete in most cases especially on long messages.

   Another reason for going with n=1 is that this is already what is
   used by all the other CRC variants in the kernel.  CRC32 was unique
   in having support for larger tables.  But as per the above this can
   be considered an outdated optimization.

   The standardization on slice-by-1 a.k.a. CRC32_SARWATE makes much of
   the code in lib/crc32.c unused.  A later patch will clean that up.

Link: https://lore.kernel.org/r/20250123212904.118683-2-ebiggers@kernel.org
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
2025-01-29 09:10:32 -08:00
Christoph Hellwig
27560b371a fs: pack struct kstat better
Move the change_cookie and subvol up to avoid two 4 byte holes.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-01-29 09:04:28 -08:00
Nilay Shroff
14ef49657f block: fix nr_hw_queue update racing with disk addition/removal
The nr_hw_queue update could potentially race with disk addtion/removal
while registering/unregistering hctx sysfs files. The __blk_mq_update_
nr_hw_queues() runs with q->tag_list_lock held and so to avoid it racing
with disk addition/removal we should acquire q->tag_list_lock while
registering/unregistering hctx sysfs files.

With this patch, blk_mq_sysfs_register() (called during disk addition)
and blk_mq_sysfs_unregister() (called during disk removal) now runs
with q->tag_list_lock held so that it avoids racing with __blk_mq_update
_nr_hw_queues().

Signed-off-by: Nilay Shroff <nilay@linux.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20250128143436.874357-3-nilay@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-29 07:16:47 -07:00
Nilay Shroff
fe66286086 block: get rid of request queue ->sysfs_dir_lock
The request queue uses ->sysfs_dir_lock for protecting the addition/
deletion of kobject entries under sysfs while we register/unregister
blk-mq. However kobject addition/deletion is already protected with
kernfs/sysfs internal synchronization primitives. So use of q->sysfs_
dir_lock seems redundant.

Moreover, q->sysfs_dir_lock is also used at few other callsites along
with q->sysfs_lock for protecting the addition/deletion of kojects.
One such example is when we register with sysfs a set of independent
access ranges for a disk. Here as well we could get rid off q->sysfs_
dir_lock and only use q->sysfs_lock.

The only variable which q->sysfs_dir_lock appears to protect is q->
mq_sysfs_init_done which is set/unset while registering/unregistering
blk-mq with sysfs. But use of q->mq_sysfs_init_done could be easily
replaced using queue registered bit QUEUE_FLAG_REGISTERED.

So with this patch we remove q->sysfs_dir_lock from each callsite
and replace q->mq_sysfs_init_done using QUEUE_FLAG_REGISTERED.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nilay Shroff <nilay@linux.ibm.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20250128143436.874357-2-nilay@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-29 07:16:47 -07:00
Masami Hiramatsu (Google)
b999589956 s390/tracing: Define ftrace_get_symaddr() for s390
Add ftrace_get_symaddr() for s390, which returns the symbol address
from ftrace's 'ip' parameter.

Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/173807818869.1854334.15474589105952793986.stgit@devnote2
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2025-01-29 15:12:40 +01:00
Masami Hiramatsu (Google)
95a05bf552 s390/fgraph: Fix to remove ftrace_test_recursion_trylock()
Fix to remove ftrace_test_recursion_trylock() from ftrace_graph_func()
because commit d576aec24d ("fgraph: Get ftrace recursion lock in
function_graph_enter") has been moved it to function_graph_enter_regs()
already.

Reported-by: Jiri Olsa <olsajiri@gmail.com>
Closes: https://lore.kernel.org/all/Z5O0shrdgeExZ2kF@krava/
Fixes: d576aec24d ("fgraph: Get ftrace recursion lock in function_graph_enter")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Ihor Solodrai <ihor.solodrai@linux.dev>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/173807817692.1854334.2985776940754607459.stgit@devnote2
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2025-01-29 15:12:31 +01:00
Takashi Iwai
86d0d3ee07 Merge tag 'asoc-fix-v6.14-merge-window' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.14

A bunch of fixes that came in during the merge window, plus a few new
device IDs.  The i.MX changes are a little large since they add some new
quirk data as well as device IDs, and the audio graph card change for
picking the correct endpoint for links is large due to updating a number
of call sites.
2025-01-29 14:39:55 +01:00
Heiko Carstens
87f017d079 s390/vmlogrdr: Use array instead of string initializer
Compiling vmlogrdr with GCC 15 generates this warning:

  CC [M]  drivers/s390/char/vmlogrdr.o
drivers/s390/char/vmlogrdr.c:126:29: error: initializer-string for array
 of ‘char’ is too long [-Werror=unterminated-string-initialization]
  126 |         { .system_service = "*LOGREC ",

Given that the system_service array intentionally contains a non-null
terminated string use an array initializer, instead of string
initializer to get rid of this warning.

Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2025-01-29 13:44:21 +01:00
Heiko Carstens
76bda8a16d s390/vmlogrdr: Use internal_name for error messages
Use the internal_name member of vmlogrdr_priv_t to print error messages
instead of the system_service member. The system_service member is not a
string, but a non-null terminated eight byte character array, which
contains the ASCII representation of a z/VM system service.

Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2025-01-29 13:44:21 +01:00
Rafael J. Wysocki
3775fc538f PM: sleep: core: Synchronize runtime PM status of parents and children
Commit 6e176bf8d4 ("PM: sleep: core: Do not skip callbacks in the
resume phase") overlooked the case in which the parent of a device with
DPM_FLAG_SMART_SUSPEND set did not use that flag and could be runtime-
suspended before a transition into a system-wide sleep state.  In that
case, if the child is resumed during the subsequent transition from
that state into the working state, its runtime PM status will be set to
RPM_ACTIVE, but the runtime PM status of the parent will not be updated
accordingly, even though the parent will be resumed too, because of the
dev_pm_skip_suspend() check in device_resume_noirq().

Address this problem by tracking the need to set the runtime PM status
to RPM_ACTIVE during system-wide resume transitions for devices with
DPM_FLAG_SMART_SUSPEND set and all of the devices depended on by them.

Fixes: 6e176bf8d4 ("PM: sleep: core: Do not skip callbacks in the resume phase")
Closes: https://lore.kernel.org/linux-pm/Z30p2Etwf3F2AUvD@hovoldconsulting.com/
Reported-by: Johan Hovold <johan@kernel.org>
Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://patch.msgid.link/12619233.O9o76ZdvQC@rjwysocki.net
2025-01-29 11:50:33 +01:00
Viresh Kumar
b865a84046 cpufreq: airoha: Depends on OF
The Airoha cpufreq depends on OF and must be marked as such. With the
kernel compiled without OF support, we get following warning:

drivers/cpufreq/airoha-cpufreq.c:109:34: warning: 'airoha_cpufreq_match_list' defined but not used [-Wunused-const-variable=]
    109 | static const struct of_device_id airoha_cpufreq_match_list[] __initconst = {
        |                                  ^~~~~~~~~~~~~~~~~~~~~~~~~

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202501251941.0fXlcd1D-lkp@intel.com/
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://patch.msgid.link/455e18c947bd9529701a2f1c796f0f934d1354d7.1738050679.git.viresh.kumar@linaro.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-01-29 10:56:11 +01:00
Alexandre Belloni
97274527e8 rtc: pcf2127: add BSM support
The pcf2127 encodes BSM, BLD and power fail detection in the same set of
bits so it is necessary to do some calculation when changing BSM to keep
the rest of the configuration as-is. However, when BSM is disabled, there
is no configuration with BLD enabled so this will be lost when coming back
to a mode with BSM enabled.

Link: https://lore.kernel.org/r/20250127162728.86234-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-01-29 00:42:29 +01:00
Linus Torvalds
05dbaf8dd8 Merge tag 'x86-urgent-2025-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
 "Fix a potential early boot crash in SEV-SNP guests, where certain
  config and build environment combinations can generate absolute
  references to symbols in the early boot code"

* tag 'x86-urgent-2025-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sev: Disable jump tables in SEV startup code
2025-01-28 14:32:03 -08:00
Linus Torvalds
b88fe2b5dd Merge tag 'nfs-for-6.14-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client updates from Anna Schumaker:
 "New Features:
   - Enable using direct IO with localio
   - Added localio related tracepoints

  Bugfixes:
   - Sunrpc fixes for working with a very large cl_tasks list
   - Fix a possible buffer overflow in nfs_sysfs_link_rpc_client()
   - Fixes for handling reconnections with localio
   - Fix how the NFS_FSCACHE kconfig option interacts with NETFS_SUPPORT
   - Fix COPY_NOTIFY xdr_buf size calculations
   - pNFS/Flexfiles fix for retrying requesting a layout segment for
     reads
   - Sunrpc fix for retrying on EKEYEXPIRED error when the TGT is
     expired

  Cleanups:
   - Various other nfs & nfsd localio cleanups
   - Prepratory patches for async copy improvements that are under
     development
   - Make OFFLOAD_CANCEL, LAYOUTSTATS, and LAYOUTERR moveable to other
     xprts
   - Add netns inum and srcaddr to debugfs rpc_xprt info"

* tag 'nfs-for-6.14-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (28 commits)
  SUNRPC: do not retry on EKEYEXPIRED when user TGT ticket expired
  sunrpc: add netns inum and srcaddr to debugfs rpc_xprt info
  pnfs/flexfiles: retry getting layout segment for reads
  NFSv4.2: make LAYOUTSTATS and LAYOUTERROR MOVEABLE
  NFSv4.2: mark OFFLOAD_CANCEL MOVEABLE
  NFSv4.2: fix COPY_NOTIFY xdr buf size calculation
  NFS: Rename struct nfs4_offloadcancel_data
  NFS: Fix typo in OFFLOAD_CANCEL comment
  NFS: CB_OFFLOAD can return NFS4ERR_DELAY
  nfs: Make NFS_FSCACHE select NETFS_SUPPORT instead of depending on it
  nfs: fix incorrect error handling in LOCALIO
  nfs: probe for LOCALIO when v3 client reconnects to server
  nfs: probe for LOCALIO when v4 client reconnects to server
  nfs/localio: remove redundant code and simplify LOCALIO enablement
  nfs_common: add nfs_localio trace events
  nfs_common: track all open nfsd_files per LOCALIO nfs_client
  nfs_common: rename nfslocalio nfs_uuid_lock to nfs_uuids_lock
  nfsd: nfsd_file_acquire_local no longer returns GC'd nfsd_file
  nfsd: rename nfsd_serv_ prefixed methods and variables with nfsd_net_
  nfsd: update percpu_ref to manage references on nfsd_net
  ...
2025-01-28 14:23:46 -08:00
Linus Torvalds
3673f5be0e Merge tag 'vfio-v6.14-rc1' of https://github.com/awilliam/linux-vfio
Pull vfio updates from Alex Williamson:

 - Extend vfio-pci 8-byte read/write support to include archs defining
   CONFIG_GENERIC_IOMAP, such as x86, and remove now extraneous #ifdefs
   around 64-bit accessors (Ramesh Thomas)

 - Update vfio-pci shadow ROM handling and allow cached ROM from setup
   data to be exposed as a functional ROM BAR region when available
   (Yunxiang Li)

 - Update nvgrace-gpu vfio-pci variant driver for new Grace Blackwell
   hardware, conditionalizing the uncached BAR workaround for previous
   generation hardware based on the presence of a flag in a new DVSEC
   capability, and include a delay during probe for link training to
   complete, a new requirement for GB devices (Ankit Agrawal)

* tag 'vfio-v6.14-rc1' of https://github.com/awilliam/linux-vfio:
  vfio/nvgrace-gpu: Add GB200 SKU to the devid table
  vfio/nvgrace-gpu: Check the HBM training and C2C link status
  vfio/nvgrace-gpu: Expose the blackwell device PF BAR1 to the VM
  vfio/nvgrace-gpu: Read dvsec register to determine need for uncached resmem
  vfio/platform: check the bounds of read/write syscalls
  vfio/pci: Expose setup ROM at ROM bar when needed
  vfio/pci: Remove shadow ROM specific code paths
  vfio/pci: Remove #ifdef iowrite64 and #ifdef ioread64
  vfio/pci: Enable iowrite64 and ioread64 for vfio pci
2025-01-28 14:16:46 -08:00
Pavel Begunkov
d1fdab8c06 io_uring/rw: simplify io_rw_recycle()
Instead of freeing iovecs in case of IO_URING_F_UNLOCKED in
io_rw_recycle(), leave it be and rely on the core io_uring code to
call io_readv_writev_cleanup() later. This way the iovec will get
recycled and we can clean up io_rw_recycle() and kill
io_rw_iovec_free().

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/14f83b112eb40078bea18e15d77a4f99fc981a44.1738087204.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-28 15:10:40 -07:00
Pavel Begunkov
0d124578fe io_uring: remove !KASAN guards from cache free
Test setups (with KASAN) will avoid !KASAN sections, and so it's not
testing paths that would be exercised otherwise. That's bad as to be
sure that your code works you now have to specifically test both KASAN
and !KASAN configs.

Remove !CONFIG_KASAN guards from io_netmsg_cache_free() and
io_rw_cache_free(). The free functions should always be getting valid
entries, and even though for KASAN iovecs should already be cleared,
that's better than skipping the chunks completely.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/d6078a51c7137a243f9d00849bc3daa660873209.1738087204.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-28 15:10:40 -07:00
Pavel Begunkov
86e62354ee io_uring/net: extract io_send_select_buffer()
Extract a helper out of io_send() for provided buffer selection to
improve readability as it has grown to take too many lines.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/26a769cdabd61af7f40c5d88a22469c5ad071796.1738087204.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-28 15:10:40 -07:00
Pavel Begunkov
2b350f756b io_uring/net: clean io_msg_copy_hdr()
Put msg->msg_iov into a local variable in io_msg_copy_hdr(), it reads
better and clearly shows the used types.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/6a5d4f7a96b10e571d6128be010166b3aaf7afd5.1738087204.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-28 15:10:40 -07:00
Pavel Begunkov
fefcb0dcd0 io_uring/net: make io_net_vec_assign() return void
io_net_vec_assign() can only return 0 and it doesn't make sense for it
to fail, so make it return void.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/7c1a2390c99e17d3ae4e8562063e572d3cdeb164.1738087204.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-28 15:10:40 -07:00
Pavel Begunkov
d19af0e936 io_uring: add alloc_cache.c
Avoid inlining all and everything from alloc_cache.h and move cold bits
into a new file.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/06984c6cd58e703f7cfae5ab3067912f9f635a06.1738087204.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-28 15:10:40 -07:00
Pavel Begunkov
16ac51a0a7 io_uring: dont ifdef io_alloc_cache_kasan()
Use IS_ENABLED in io_alloc_cache_kasan() so at least it gets compile
tested without KASAN.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/35e53e83f6e16478dca0028a64a6cc905dc764d3.1738087204.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-28 15:10:40 -07:00
Pavel Begunkov
299276502d io_uring: include all deps for alloc_cache.h
alloc_cache.h uses types it doesn't declare and thus depends on the
order in which it's included. Make it self contained and pull all needed
definitions.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/39569f3d5b250b4fe78bb609d57f67d3736ebcc4.1738087204.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-28 15:10:40 -07:00
Ard Biesheuvel
1105ab42a8 x86/sev: Disable jump tables in SEV startup code
When retpolines and IBT are both disabled, the compiler is free to use
jump tables to optimize switch instructions. However, these are emitted
by Clang as absolute references into .rodata:

        jmp    *-0x7dfffe90(,%r9,8)
                        R_X86_64_32S    .rodata+0x170

Given that this code will execute before that address in .rodata has even
been mapped, it is guaranteed to crash a SEV-SNP guest in a way that is
difficult to diagnose.

So disable jump tables when building this code. It would be better if we
could attach this annotation to the __head macro but this appears to be
impossible.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20250127114334.1045857-6-ardb+git@google.com
2025-01-28 23:10:29 +01:00
Bagas Sanjaya
96720ce8b1 docs: power: Fix footnote reference for Toshiba Satellite P10-554
Sphinx reports unreferenced footnote warning on "Video issues with S3
resume" doc:

Documentation/power/video.rst:213: WARNING: Footnote [#] is not referenced. [ref.footnote]

Fix the warning by separating footnote reference for Toshiba Satellite
P10-554 by a space.

Fixes: 151f4e2bdc ("docs: power: convert docs to ReST and rename to *.rst")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/linux-next/20250122170335.148a23b0@canb.auug.org.au/
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250122143456.68867-4-bagasdotme@gmail.com
2025-01-28 15:02:17 -07:00
Bagas Sanjaya
3fdf2ec7da Documentation: ublk: Drop Stefan Hajnoczi's message footnote
Sphinx reports unreferenced footnote warning pointing to ubd-control
message by Stefan Hajnoczi:

Documentation/block/ublk.rst:336: WARNING: Footnote [#] is not referenced. [ref.footnote]

Drop the footnote to squash above warning.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Fixes: 4093cb5a06 ("ublk_drv: add mechanism for supporting unprivileged ublk device")
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250122143456.68867-3-bagasdotme@gmail.com
2025-01-28 15:02:17 -07:00
Melissa Wen
7f2b5237e3 drm/amd/display: restore invalid MSA timing check for freesync
This restores the original behavior that gets min/max freq from EDID and
only set DP/eDP connector as freesync capable if "sink device is capable
of rendering incoming video stream without MSA timing parameters", i.e.,
`allow_invalid_MSA_timing_params` is true. The condition was mistakenly
removed by 0159f88a99 ("drm/amd/display: remove redundant freesync
parser for DP").

CC: Mario Limonciello <mario.limonciello@amd.com>
CC: Alex Hung <alex.hung@amd.com>
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3915
Fixes: 0159f88a99 ("drm/amd/display: remove redundant freesync parser for DP")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2025-01-28 16:26:13 -05:00
Prike Liang
9078a5bfa2 drm/amdkfd: only flush the validate MES contex
The following page fault was observed duringthe KFD process release.
In this particular error case, the HIP test (./MemcpyPerformance -h)
does not require the queue. As a result, the process_context_addr was
not assigned when the KFD process was released, ultimately leading to
this page fault during the execution of the function
kfd_process_dequeue_from_all_devices().

[345962.294891] amdgpu 0000:03:00.0: amdgpu: [gfxhub] page fault (src_id:0 ring:153 vmid:0 pasid:0)
[345962.295333] amdgpu 0000:03:00.0: amdgpu:   in page starting at address 0x0000000000000000 from client 10
[345962.295775] amdgpu 0000:03:00.0: amdgpu: GCVM_L2_PROTECTION_FAULT_STATUS:0x00000B33
[345962.296097] amdgpu 0000:03:00.0: amdgpu:     Faulty UTCL2 client ID: CPC (0x5)
[345962.296394] amdgpu 0000:03:00.0: amdgpu:     MORE_FAULTS: 0x1
[345962.296633] amdgpu 0000:03:00.0: amdgpu:     WALKER_ERROR: 0x1
[345962.296876] amdgpu 0000:03:00.0: amdgpu:     PERMISSION_FAULTS: 0x3
[345962.297135] amdgpu 0000:03:00.0: amdgpu:     MAPPING_ERROR: 0x1
[345962.297377] amdgpu 0000:03:00.0: amdgpu:     RW: 0x0
[345962.297682] amdgpu 0000:03:00.0: amdgpu: [gfxhub] page fault (src_id:0 ring:169 vmid:0 pasid:0)

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Jonathan Kim <jonathan.kim@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2025-01-28 16:24:39 -05:00
loanchen
f88192d233 drm/amd/display: Correct register address in dcn35
[Why]
the offset address of mmCLK5_spll_field_8 was incorrect for dcn35
which causes SSC not to be enabled.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Lo-An Chen <lo-an.chen@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2025-01-28 16:23:30 -05:00
Lijo Lazar
819bf6662b drm/amd/pm: Mark MM activity as unsupported
Aldebaran doesn't support querying MM activity percentage. Keep the
field as 0xFFs to mark it as unsupported.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2025-01-28 16:23:06 -05:00
Kenneth Feng
5cda56bd86 drm/amd/amdgpu: change the config of cgcg on gfx12
change the config of cgcg on gfx12

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.12.x
2025-01-28 16:22:39 -05:00
Jay Cornwall
f214b7beb0 drm/amdkfd: Block per-queue reset when halt_if_hws_hang=1
The purpose of halt_if_hws_hang is to preserve GPU state for driver
debugging when queue preemption fails. Issuing per-queue reset may
kill wavefronts which caused the preemption failure.

Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
Reviewed-by: Jonathan Kim <Jonathan.Kim@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.12.x
2025-01-28 16:22:02 -05:00
Linus Torvalds
2ab002c755 Merge tag 'driver-core-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and debugfs updates from Greg KH:
 "Here is the big set of driver core and debugfs updates for 6.14-rc1.

  Included in here is a bunch of driver core, PCI, OF, and platform rust
  bindings (all acked by the different subsystem maintainers), hence the
  merge conflict with the rust tree, and some driver core api updates to
  mark things as const, which will also require some fixups due to new
  stuff coming in through other trees in this merge window.

  There are also a bunch of debugfs updates from Al, and there is at
  least one user that does have a regression with these, but Al is
  working on tracking down the fix for it. In my use (and everyone
  else's linux-next use), it does not seem like a big issue at the
  moment.

  Here's a short list of the things in here:

   - driver core rust bindings for PCI, platform, OF, and some i/o
     functions.

     We are almost at the "write a real driver in rust" stage now,
     depending on what you want to do.

   - misc device rust bindings and a sample driver to show how to use
     them

   - debugfs cleanups in the fs as well as the users of the fs api for
     places where drivers got it wrong or were unnecessarily doing
     things in complex ways.

   - driver core const work, making more of the api take const * for
     different parameters to make the rust bindings easier overall.

   - other small fixes and updates

  All of these have been in linux-next with all of the aforementioned
  merge conflicts, and the one debugfs issue, which looks to be resolved
  "soon""

* tag 'driver-core-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (95 commits)
  rust: device: Use as_char_ptr() to avoid explicit cast
  rust: device: Replace CString with CStr in property_present()
  devcoredump: Constify 'struct bin_attribute'
  devcoredump: Define 'struct bin_attribute' through macro
  rust: device: Add property_present()
  saner replacement for debugfs_rename()
  orangefs-debugfs: don't mess with ->d_name
  octeontx2: don't mess with ->d_parent or ->d_parent->d_name
  arm_scmi: don't mess with ->d_parent->d_name
  slub: don't mess with ->d_name
  sof-client-ipc-flood-test: don't mess with ->d_name
  qat: don't mess with ->d_name
  xhci: don't mess with ->d_iname
  mtu3: don't mess wiht ->d_iname
  greybus/camera - stop messing with ->d_iname
  mediatek: stop messing with ->d_iname
  netdevsim: don't embed file_operations into your structs
  b43legacy: make use of debugfs_get_aux()
  b43: stop embedding struct file_operations into their objects
  carl9170: stop embedding file_operations into their objects
  ...
2025-01-28 12:25:12 -08:00
Sk Anirban
54cb728890 drm/i915/guc/slpc: Add helper function slpc_measure_power
Previously, the RPS function was being used, which utilizes
raw frequency to calculate measured power. This commit introduces
a dedicated function specifically for measuring power in SLPC,
ensuring more accurate and reliable power measurements.

Signed-off-by: Sk Anirban <sk.anirban@intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250113095912.356147-3-sk.anirban@intel.com
2025-01-28 21:11:24 +01:00
Sk Anirban
d7364b86e4 drm/i915/selftests: Correct frequency handling in RPS power measurement
Fix the frequency calculation by ensuring it uses the raw frequency only.
Update live_rps_power test to use the correct frequency values for logging
and comparison.

Signed-off-by: Sk Anirban <sk.anirban@intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250113095912.356147-2-sk.anirban@intel.com
2025-01-28 21:11:15 +01:00
Linus Torvalds
f785692ff5 Merge tag 'stop-machine.2025.01.28a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull stop_machine update from Paul McKenney:
 "Move a misplaced call to rcu_momentary_eqs() from multi_cpu_stop() to
  ensure that interrupts are disabled as required"

* tag 'stop-machine.2025.01.28a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  stop_machine: Fix rcu_momentary_eqs() call in multi_cpu_stop()
2025-01-28 11:35:58 -08:00
Linus Torvalds
b2b3379f4c Merge tag 'csd-lock.2025.01.28a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull CSD-lock update from Paul McKenney:
 "Allow runtime modification of the csd_lock_timeout and
  panic_on_ipistall module parameters"

* tag 'csd-lock.2025.01.28a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  locking/csd-lock: make CSD lock debug tunables writable in /sys
2025-01-28 11:34:03 -08:00
Linus Torvalds
cd45f362fc Merge tag 'bootconfig-fixes-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull bootconfig fix from Masami Hiramatsu:

 - Fix wrong format specifier: use '%u' for unsigned int

* tag 'bootconfig-fixes-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tools/bootconfig: Fix the wrong format specifier
2025-01-28 10:11:33 -08:00