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1,412,555 commits

Author SHA1 Message Date
Harry Yoo
0f35040de5 mm/slab: introduce kvfree_rcu_barrier_on_cache() for cache destruction
Currently, kvfree_rcu_barrier() flushes RCU sheaves across all slab
caches when a cache is destroyed. This is unnecessary; only the RCU
sheaves belonging to the cache being destroyed need to be flushed.

As suggested by Vlastimil Babka, introduce a weaker form of
kvfree_rcu_barrier() that operates on a specific slab cache.

Factor out flush_rcu_sheaves_on_cache() from flush_all_rcu_sheaves() and
call it from flush_all_rcu_sheaves() and kvfree_rcu_barrier_on_cache().

Call kvfree_rcu_barrier_on_cache() instead of kvfree_rcu_barrier() on
cache destruction.

The performance benefit is evaluated on a 12 core 24 threads AMD Ryzen
5900X machine (1 socket), by loading slub_kunit module.

Before:
  Total calls: 19
  Average latency (us): 18127
  Total time (us): 344414

After:
  Total calls: 19
  Average latency (us): 10066
  Total time (us): 191264

Two performance regression have been reported:
  - stress module loader test's runtime increases by 50-60% (Daniel)
  - internal graphics test's runtime on Tegra234 increases by 35% (Jon)

They are fixed by this change.

Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Fixes: ec66e0d599 ("slab: add sheaf support for batching kfree_rcu() operations")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/linux-mm/1bda09da-93be-4737-aef0-d47f8c5c9301@suse.cz
Reported-and-tested-by: Daniel Gomez <da.gomez@samsung.com>
Closes: https://lore.kernel.org/linux-mm/0406562e-2066-4cf8-9902-b2b0616dd742@kernel.org
Reported-and-tested-by: Jon Hunter <jonathanh@nvidia.com>
Closes: https://lore.kernel.org/linux-mm/e988eff6-1287-425e-a06c-805af5bbf262@nvidia.com
Signed-off-by: Harry Yoo <harry.yoo@oracle.com>
Link: https://patch.msgid.link/20251207154148.117723-1-harry.yoo@oracle.com
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2025-12-07 18:09:54 +01:00
Linus Torvalds
67a454e6b1 memblock: introduce check_pages boot parameter
... to decouple simple checks for page state on allocation and free from
 CONFIG_DEBUG_VM.
 
 check_pages parameter allows enabling page checking without building kernel
 with CONFIG_DEBUG_VM or forcing init_on_{alloc, free} or other heavier
 mechanisms.
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Merge tag 'memblock-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

Pull memblock update from Mike Rapoport:
 "Introduce a 'check_pages' boot parameter to decouple simple checks for
  page state on allocation and free from CONFIG_DEBUG_VM.

  This allows enabling page checking without building kernel with
  CONFIG_DEBUG_VM or forcing init_on_{alloc, free} or other heavier
  mechanisms"

* tag 'memblock-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  mm/mm_init: Introduce a boot parameter for check_pages
2025-12-07 08:56:10 -08:00
Linus Torvalds
bbbf7f3284 - fix a bug with O_APPEND in cached mode causing data to be written multiple times on server
- use kvmalloc for trans_fd to avoid problems with large msize and fragmented memory
 This should hopefully be used in more transports when time allows
 - convert to new mount API
 - minor cleanups
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Merge tag '9p-for-6.19-rc1' of https://github.com/martinetd/linux

Pull 9p updates from Dominique Martinet:

 - fix a bug with O_APPEND in cached mode causing data to be written
   multiple times on server

 - use kvmalloc for trans_fd to avoid problems with large msize and
   fragmented memory This should hopefully be used in more transports
   when time allows

 - convert to new mount API

 - minor cleanups

* tag '9p-for-6.19-rc1' of https://github.com/martinetd/linux:
  9p: fix new mount API cache option handling
  9p: fix cache/debug options printing in v9fs_show_options
  9p: convert to the new mount API
  9p: create a v9fs_context structure to hold parsed options
  net/9p: move structures and macros to header files
  fs/fs_parse: add back fsparam_u32hex
  fs/9p: delete unnnecessary condition
  fs/9p: Don't open remote file with APPEND mode when writeback cache is used
  net/9p: cleanup: change p9_trans_module->def to bool
  9p: Use kvmalloc for message buffers on supported transports
2025-12-07 08:29:09 -08:00
Tobias Schumacher
f770950a47 s390/pci: Migrate s390 IRQ logic to IRQ domain API
s390 is one of the last architectures using the legacy API for setup and
teardown of PCI MSI IRQs. Migrate the s390 IRQ allocation and teardown
to the MSI parent domain API. For details, see:

https://lore.kernel.org/lkml/20221111120501.026511281@linutronix.de

In detail, create an MSI parent domain for each PCI domain. When a PCI
device sets up MSI or MSI-X IRQs, the library creates a per-device IRQ
domain for this device, which is used by the device for allocating and
freeing IRQs.

The per-device domain delegates this allocation and freeing to the
parent-domain. In the end, the corresponding callbacks of the parent
domain are responsible for allocating and freeing the IRQs.

The allocation is split into two parts:
- zpci_msi_prepare() is called once for each device and allocates the
  required resources. On s390, each PCI function has its own airq
  vector and a summary bit, which must be configured once per function.
  This is done in prepare().
- zpci_msi_alloc() can be called multiple times for allocating one or
  more MSI/MSI-X IRQs. This creates a mapping between the virtual IRQ
  number in the kernel and the hardware IRQ number.

Freeing is split into two counterparts:
- zpci_msi_free() reverts the effects of zpci_msi_alloc() and
- zpci_msi_teardown() reverts the effects of zpci_msi_prepare(). This is
  called once when all IRQs are freed before a device is removed.

Since the parent domain in the end allocates the IRQs, the hwirq
encoding must be unambiguous for all IRQs of all devices. This is
achieved by encoding the hwirq using the devfn and the MSI index.

Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Farhan Ali <alifm@linux.ibm.com>
Signed-off-by: Tobias Schumacher <ts@linux.ibm.com>
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2025-12-07 16:15:23 +01:00
Tobias Schumacher
455a65260f genirq: Change hwirq parameter to irq_hw_number_t
The irqdomain implementation internally represents hardware IRQs as
irq_hw_number_t, which is defined as unsigned long int. When providing
an irq_hw_number_t to the generic_handle_domain() functions that expect
and unsigned int hwirq, this can lead to a loss of information. Change
the hwirq parameter to irq_hw_number_t to support the full range of
hwirqs.

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Farhan Ali <alifm@linux.ibm.com>
Signed-off-by: Tobias Schumacher <ts@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2025-12-07 16:15:22 +01:00
Heiko Carstens
eb9780a1a3 s390: Select POSIX_CPU_TIMERS_TASK_WORK
After support for VIRT_XFER_TO_GUEST_WORK is available for s390 it is
possible to also select HAVE_POSIX_CPU_TIMERS_TASK_WORK. See [1] for the
reasons why it makes sense, also for architectures which do not support
PREEMPT_RT.

[1] https://lore.kernel.org/all/20200716201923.228696399@linutronix.de

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2025-12-07 16:15:19 +01:00
Vasily Gorbik
8543ecc0e0 s390: Unmap early KASAN shadow on memory offlining
Teach the memory hotplug path to tear down KASAN shadow that
was mapped during early boot when a memory block is offlined.

Track for each sclp_mem whether its range was covered by the early
KASAN shadow via an early_shadow_mapped flag. When such a block is
deconfigured and removed via sclp_config_mem_store(), compute the
corresponding shadow range and call vmemmap_free() to unmap the
boot mapped shadow, then clear the flag.

Using vmemmap_free() for the early shadow is safe despite the use
of large mappings in the boot-time KASAN setup. The initial shadow
is mapped with 1M and 2G pages, where possible. The minimum hotplug
memory block size is 128M and always aligned (the identity mapping
is at least 2G aligned), which corresponds to a 16M chunk of at
least 1M aligned shadow. PMD-mapped 1M shadow pages therefore
never need splitting, and PUD-mapped 2G shadow pages can now be
split following the preceding changes.

Relax the modify_pagetable() sanity check in vmem so that, with
KASAN enabled, it may also operate on the KASAN shadow region in
addition to the 1:1 mapping and vmemmap area. This allows the KASAN
shadow unmapping to reuse the common vmem helpers.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2025-12-07 16:15:19 +01:00
Vasily Gorbik
6a35d02fec s390/vmem: Support 2G page splitting for KASAN shadow freeing
Export split_pud_page() so it can be used from the vmem code and teach
modify_pud_table() to split PUD-sized mappings when only a subrange
needs to be removed.

If the range to be removed covers a full PUD-sized mapping, keep the
existing behavior: clear the PUD entry and free the backing large page
(for non-direct mappings). Otherwise, split the PUD-mapped page into
PMD mappings and let the walker handle the smaller ranges.

This is needed for KASAN early shadow removal support: memory hotplug
freeing the KASAN early shadow is the only expected caller that will
try to free 2G PUD-mapped regions of non-direct mappings.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2025-12-07 16:15:19 +01:00
Vasily Gorbik
1442bb87b8 s390/boot: Use entire page for PTEs
Make boot_pte_alloc() always allocate a full PAGE_SIZE page for
PTE tables, instead of carving two 2K PTE tables out of a single
4K page, similar to commit daa8af80d2 ("s390/mm: Allocate page
table with PAGE_SIZE granularity").

This mirrors the change in the vmem code and ensures that boot page
tables backing the early KASAN shadow can later be fully freed by
the vmem page-table teardown helpers (e.g. when unmapping early
KASAN shadow on memory hotplug).

The leftover-based allocation was originally added to reduce physmem
allocator fragmentation when EDAT was disabled. On current hardware
EDAT1 is available on all production systems, so the complexity is no
longer justified and gets in the way of freeing the shadow mappings.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2025-12-07 16:15:19 +01:00
Heiko Carstens
d9f5917801 s390/vmur: Use scnprintf() instead of sprintf()
Use scnprintf() instead of sprintf() for those cases where the destination
is an array and the size of the array is known at compile time.

This prevents theoretical buffer overflows, but also avoids that people
again and again spend time to figure out if the code is actually safe.

Reviewed-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2025-12-07 16:15:18 +01:00
Linus Torvalds
9e906a9dea [GIT PULL] perf tools changes for v6.19
Perf event/metric description
 -----------------------------
 Unify all event and metric descriptions in JSON format.
 Now event parsing and handling is greatly simplified by that.
 
 From users point of view, perf list will provide richer
 information about hardware events like the following.
 
     $ perf list hw
 
     List of pre-defined events (to be used in -e or -M):
 
     legacy hardware:
       branch-instructions
            [Retired branch instructions [This event is an alias of branches]. Unit: cpu]
       branch-misses
            [Mispredicted branch instructions. Unit: cpu]
       branches
            [Retired branch instructions [This event is an alias of branch-instructions]. Unit: cpu]
       bus-cycles
            [Bus cycles,which can be different from total cycles. Unit: cpu]
       cache-misses
            [Cache misses. Usually this indicates Last Level Cache misses; this is intended to be used in conjunction with the
             PERF_COUNT_HW_CACHE_REFERENCES event to calculate cache miss rates. Unit: cpu]
       cache-references
            [Cache accesses. Usually this indicates Last Level Cache accesses but this may vary depending on your CPU. This may include
             prefetches and coherency messages; again this depends on the design of your CPU. Unit: cpu]
       cpu-cycles
            [Total cycles. Be wary of what happens during CPU frequency scaling [This event is an alias of cycles]. Unit: cpu]
       cycles
            [Total cycles. Be wary of what happens during CPU frequency scaling [This event is an alias of cpu-cycles]. Unit: cpu]
       instructions
            [Retired instructions. Be careful,these can be affected by various issues,most notably hardware interrupt counts. Unit: cpu]
       ref-cycles
            [Total cycles; not affected by CPU frequency scaling. Unit: cpu]
 
 But most notable changes would be in the perf stat.  On the right side,
 the default metrics are better named and aligned. :)
 
     $ perf stat -- perf test -w noploop
 
      Performance counter stats for 'perf test -w noploop':
 
                     11      context-switches                 #     10.8 cs/sec  cs_per_second
                      0      cpu-migrations                   #      0.0 migrations/sec  migrations_per_second
                  3,612      page-faults                      #   3532.5 faults/sec  page_faults_per_second
               1,022.51 msec task-clock                       #      1.0 CPUs  CPUs_utilized
                110,466      branch-misses                    #      0.0 %  branch_miss_rate         (88.66%)
          6,934,452,104      branches                         #   6781.8 M/sec  branch_frequency     (88.66%)
          4,657,032,590      cpu-cycles                       #      4.6 GHz  cycles_frequency       (88.65%)
         27,755,874,218      instructions                     #      6.0 instructions  insn_per_cycle  (89.03%)
                             TopdownL1                        #      0.3 %  tma_backend_bound
                                                              #      9.3 %  tma_bad_speculation      (89.05%)
                                                              #      9.7 %  tma_frontend_bound       (77.86%)
                                                              #     80.7 %  tma_retiring             (88.81%)
 
            1.025318171 seconds time elapsed
 
            1.013248000 seconds user
            0.012014000 seconds sys
 
 Deferred unwinding support
 --------------------------
 With the kernel support [1], perf can use deferred callchains for
 userspace stack trace with frame pointers like below:
 
     $ perf record --call-graph fp,defer ...
 
 This will be transparent to users when it comes to other commands like
 perf report and perf script.  They will merge the deferred callchains to
 the previous samples as if they were collected together.
 
 [1] https://git.kernel.org/torvalds/c/c69993ecdd4dfde2b7da08b022052a33b203da07
 
 ARM SPE updates
 ---------------
 * Extensive enhancements to support various kinds of memory operations
   including GCS, MTE allocation tags, memcpy/memset, register access,
   and SIMD operations.
 
 * Add inverted data source filter (inv_data_src_filter) support to
   exclude certain data sources.
 
 * Improve documentation.
 
 Vendor event updates
 --------------------
 * Intel: Updated event files for Sierra Forest, Panther Lake, Meteor Lake,
          Lunar Lake, Granite Rapids, and others.
 
 * Arm64: Added metrics for i.MX94 DDR PMU and Cortex-A720AE definitions.
 
 * RISC-V: Added JSON support for T-HEAD C920V2.
 
 Misc
 ----
 * Improve pointer tracking in data type profiling.  It'd give better
   output when the variable is using container_of() to convert type.
 
 * Annotation support for perf c2c report in TUI.  Press 'a' key to
   enter annotation view from cacheline browser window.  This will show
   which instruction is causing the cacheline contention.
 
 * Lots of fixes and test coverage improvements!
 
 Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Merge tag 'perf-tools-for-v6.19-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools updates from Namhyung Kim:
 "Perf event/metric description:

  Unify all event and metric descriptions in JSON format. Now event
  parsing and handling is greatly simplified by that.

  From users point of view, perf list will provide richer information
  about hardware events like the following.

    $ perf list hw

    List of pre-defined events (to be used in -e or -M):

    legacy hardware:
      branch-instructions
           [Retired branch instructions [This event is an alias of branches]. Unit: cpu]
      branch-misses
           [Mispredicted branch instructions. Unit: cpu]
      branches
           [Retired branch instructions [This event is an alias of branch-instructions]. Unit: cpu]
      bus-cycles
           [Bus cycles,which can be different from total cycles. Unit: cpu]
      cache-misses
           [Cache misses. Usually this indicates Last Level Cache misses; this is intended to be used in conjunction with the
            PERF_COUNT_HW_CACHE_REFERENCES event to calculate cache miss rates. Unit: cpu]
      cache-references
           [Cache accesses. Usually this indicates Last Level Cache accesses but this may vary depending on your CPU. This may include
            prefetches and coherency messages; again this depends on the design of your CPU. Unit: cpu]
      cpu-cycles
           [Total cycles. Be wary of what happens during CPU frequency scaling [This event is an alias of cycles]. Unit: cpu]
      cycles
           [Total cycles. Be wary of what happens during CPU frequency scaling [This event is an alias of cpu-cycles]. Unit: cpu]
      instructions
           [Retired instructions. Be careful,these can be affected by various issues,most notably hardware interrupt counts. Unit: cpu]
      ref-cycles
           [Total cycles; not affected by CPU frequency scaling. Unit: cpu]

  But most notable changes would be in the perf stat. On the right side,
  the default metrics are better named and aligned. :)

    $ perf stat -- perf test -w noploop

     Performance counter stats for 'perf test -w noploop':

                    11      context-switches                 #     10.8 cs/sec  cs_per_second
                     0      cpu-migrations                   #      0.0 migrations/sec  migrations_per_second
                 3,612      page-faults                      #   3532.5 faults/sec  page_faults_per_second
              1,022.51 msec task-clock                       #      1.0 CPUs  CPUs_utilized
               110,466      branch-misses                    #      0.0 %  branch_miss_rate         (88.66%)
         6,934,452,104      branches                         #   6781.8 M/sec  branch_frequency     (88.66%)
         4,657,032,590      cpu-cycles                       #      4.6 GHz  cycles_frequency       (88.65%)
        27,755,874,218      instructions                     #      6.0 instructions  insn_per_cycle  (89.03%)
                            TopdownL1                        #      0.3 %  tma_backend_bound
                                                             #      9.3 %  tma_bad_speculation      (89.05%)
                                                             #      9.7 %  tma_frontend_bound       (77.86%)
                                                             #     80.7 %  tma_retiring             (88.81%)

           1.025318171 seconds time elapsed

           1.013248000 seconds user
           0.012014000 seconds sys

  Deferred unwinding support:

  With the kernel support (commit c69993ecdd: "perf: Support deferred
  user unwind"), perf can use deferred callchains for userspace stack
  trace with frame pointers like below:

    $ perf record --call-graph fp,defer ...

  This will be transparent to users when it comes to other commands like
  perf report and perf script. They will merge the deferred callchains
  to the previous samples as if they were collected together.

  ARM SPE updates

   - Extensive enhancements to support various kinds of memory
     operations including GCS, MTE allocation tags, memcpy/memset,
     register access, and SIMD operations.

   - Add inverted data source filter (inv_data_src_filter) support to
     exclude certain data sources.

   - Improve documentation.

  Vendor event updates:

   - Intel: Updated event files for Sierra Forest, Panther Lake, Meteor
     Lake, Lunar Lake, Granite Rapids, and others.

   - Arm64: Added metrics for i.MX94 DDR PMU and Cortex-A720AE
     definitions.

   - RISC-V: Added JSON support for T-HEAD C920V2.

  Misc:

   - Improve pointer tracking in data type profiling. It'd give better
     output when the variable is using container_of() to convert type.

   - Annotation support for perf c2c report in TUI. Press 'a' key to
     enter annotation view from cacheline browser window. This will show
     which instruction is causing the cacheline contention.

   - Lots of fixes and test coverage improvements!"

* tag 'perf-tools-for-v6.19-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (214 commits)
  libperf: Use 'extern' in LIBPERF_API visibility macro
  perf stat: Improve handling of termination by signal
  perf tests stat: Add test for error for an offline CPU
  perf stat: When no events, don't report an error if there is none
  perf tests stat: Add "--null" coverage
  perf cpumap: Add "any" CPU handling to cpu_map__snprint_mask
  libperf cpumap: Fix perf_cpu_map__max for an empty/NULL map
  perf stat: Allow no events to open if this is a "--null" run
  perf test kvm: Add some basic perf kvm test coverage
  perf tests evlist: Add basic evlist test
  perf tests script dlfilter: Add a dlfilter test
  perf tests kallsyms: Add basic kallsyms test
  perf tests timechart: Add a perf timechart test
  perf tests top: Add basic perf top coverage test
  perf tests buildid: Add purge and remove testing
  perf tests c2c: Add a basic c2c
  perf c2c: Clean up some defensive gets and make asan clean
  perf jitdump: Fix missed dso__put
  perf mem-events: Don't leak online CPU map
  perf hist: In init, ensure mem_info is put on error paths
  ...
2025-12-07 07:07:02 -08:00
David Heidelberg
74ac7558ea ALSA: Do not build obsolete API
ALSA 0.9.0-rc3 is from 2002, 23 years old.

Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Acked-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20251203-old-alsa-v1-1-ac80704f52c3@ixit.cz
2025-12-07 13:15:59 +01:00
Joakim Zhang
d91e9bd101 ALSA: hda: add CIX IPBLOQ HDA controller support
Add CIX IPBLOQ HDA controller support, which is integrated into
CIX SKY1 audio subsystem. HDA controller supports 64bit, but the
audio subsystem can only 32bit transaction. Use jack polling mode
as there is a hardware issue, lead to interrupt strom if the RIRB
interrupt enabled. Host and hdac has different view of memory, so
need do dma address translation.

Signed-off-by: Joakim Zhang <joakim.zhang@cixtech.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20251205154621.3019640-4-joakim.zhang@cixtech.com
2025-12-07 13:13:20 +01:00
Joakim Zhang
a4f2fa516e ALSA: hda/core: add addr_offset field for bus address translation
Add bus addr_offset field for dma address translation,
for some SoCs such as CIX SKY1 which is ARM64 Arch, HOST
and HDAC has different memory view, so need to do dma address
translation between HOST and HDAC.

Signed-off-by: Joakim Zhang <joakim.zhang@cixtech.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20251205154621.3019640-3-joakim.zhang@cixtech.com
2025-12-07 13:13:20 +01:00
Joakim Zhang
85a6544777 ALSA: hda: dt-bindings: add CIX IPBLOQ HDA controller support
Add CIX IPBLOQ HDA controller support, which is integrated into
CIX SKY1 audio subsystem. HDA controller supports 64bit, but the
audio subsystem can only 32bit transaction. Use jack polling mode
as there is a hardware issue, lead to interrupt strom if the RIRB
interrupt enabled. Host and hdac has different view of memory, so
need do dma address translation.

Signed-off-by: Joakim Zhang <joakim.zhang@cixtech.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20251205154621.3019640-2-joakim.zhang@cixtech.com
2025-12-07 13:13:20 +01:00
Stefan Binding
826c0b1ed0 ALSA: hda/realtek: Add support for ASUS UM3406GA
Laptops use 2 CS35L41 Amps with HDA, using External boost, with I2C

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Link: https://patch.msgid.link/20251205150614.49590-3-sbinding@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-12-07 13:12:35 +01:00
Stefan Binding
f8b1ff6555 ALSA: hda/realtek: Add support for HP Turbine Laptops
Laptops use 2 CS35L41 Amps with HDA, using Internal boost, with I2C

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Link: https://patch.msgid.link/20251205150614.49590-2-sbinding@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-12-07 13:12:29 +01:00
Linus Torvalds
37bb2e7217 Staging driver updates for 6.19-rc1
Here is the big set of staging driver updates for 6.19-rc1.  Only thing
 "major" in here is that two subsystems, gpib and vc04 have moved out of
 the staging tree into the "real" portion of the kernel, which is great
 to see.  Other than that, the rest of the changes are just tiny coding
 style cleanups, nothing earth-shattering.
 
 All of these have been in linux-next for a while with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here is the big set of staging driver updates for 6.19-rc1.

  Only thing "major" in here is that two subsystems, gpib and vc04 have
  moved out of the staging tree into the "real" portion of the kernel,
  which is great to see. Other than that, the rest of the changes are
  just tiny coding style cleanups, nothing earth-shattering.

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'staging-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (53 commits)
  staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing
  staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing
  staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser
  staging: gpib: Clean-up commented-out code
  staging: rtl8723bs: remove custom FIELD_OFFSET macro
  staging: rtl8723bs: replace FIELD_OFFSET usage with offsetof in rtw_mlme_ext.c
  staging: rtl8723bs: remove dead commented code from odm.c
  staging: rtl8723bs: use standard offsetof in cfg80211 operations
  staging: rtl8723bs: remove unused registry and BSSID offset macros
  staging: rtl8723bs: core: delete commented-out code
  staging: rtl8723bs: core: fix block comment style issues
  staging: greybus: uart: check return values during probe
  staging: fbtft: core: fix potential memory leak in fbtft_probe_common()
  staging: gpib: Destage gpib
  staging: gpib: Fix SPDX license for gpib headers
  staging: gpib: Update TODO file
  staging: gpib: Change // comments in uapi header file
  platform/raspberrypi: Destage VCHIQ MMAL driver
  platform/raspberrypi: Destage VCHIQ interface
  staging: vc04_services: Cleanup VCHIQ TODO entries
  ...
2025-12-06 18:52:00 -08:00
Linus Torvalds
f5e9d31e79 USB/Thunderbolt changes for 6.19-rc1
Here is the big set of USB and Thunderbolt driver updates for 6.19-rc1.
 Nothing major here, just lots of tiny updates for most of the common USB
 drivers.  Included in here are:
   - more xhci driver updates and fixes
   - Thunderbolt driver cleanups
   - usb serial driver updates
   - typec driver updates
   - USB tracepoint additions
   - dwc3 driver updates, including support for Apple hardware
   - lots of other smaller driver updates and cleanups
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/Thunderbolt updates from Greg KH:
 "Here is the big set of USB and Thunderbolt driver updates for
  6.19-rc1. Nothing major here, just lots of tiny updates for most of
  the common USB drivers. Included in here are:

   - more xhci driver updates and fixes

   - Thunderbolt driver cleanups

   - usb serial driver updates

   - typec driver updates

   - USB tracepoint additions

   - dwc3 driver updates, including support for Apple hardware

   - lots of other smaller driver updates and cleanups

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (161 commits)
  usb: gadget: tegra-xudc: Always reinitialize data toggle when clear halt
  USB: serial: option: move Telit 0x10c7 composition in the right place
  USB: serial: option: add Telit Cinterion FE910C04 new compositions
  usb: typec: ucsi: fix use-after-free caused by uec->work
  usb: typec: ucsi: fix probe failure in gaokun_ucsi_probe()
  usb: dwc3: core: Remove redundant comment in core init
  usb: phy: Initialize struct usb_phy list_head
  USB: serial: option: add Foxconn T99W760
  usb: usb-storage: No additional quirks need to be added to the EL-R12 optical drive.
  usb: typec: hd3ss3220: Enable VBUS based on ID pin state
  dt-bindings: usb: ti,hd3ss3220: Add support for VBUS based on ID state
  usb: typec: anx7411: add WQ_PERCPU to alloc_workqueue users
  USB: add WQ_PERCPU to alloc_workqueue users
  dt-bindings: usb: dwc3-xilinx: Describe the reset constraint for the versal platform
  drivers/usb/storage: use min() instead of min_t()
  usb: raw-gadget: cap raw_io transfer length to KMALLOC_MAX_SIZE
  usb: ohci-da8xx: remove unused platform data
  usb: gadget: functionfs: use dma_buf_unmap_attachment_unlocked() helper
  usb: uas: reduce time under spinlock
  usb: dwc3: eic7700: Add EIC7700 USB driver
  ...
2025-12-06 18:42:12 -08:00
Linus Torvalds
edf602a17b TTY/Serial changes for 6.19-rc1
Here is the big set of tty/serial driver changes for 6.19-rc1.  Nothing
 major at all, just small constant churn to make the tty layer "cleaner"
 as well as serial driver updates and even a new test added!  Included in
 here are:
   - More tty/serial cleanups from Jiri
   - tty tiocsti test added to hopefully ensure we don't regress in this
     area again
   - sc16is7xx driver updates
   - imx serial driver updates
   - 8250 driver updates
   - new hardware device ids added
   - other minor serial/tty driver cleanups and tweaks
 
 All of these have been in linux-next for a while with no reported issues
 other than a merge-conflict that you will have when you merge into your
 tree (should be simple to resolve, just delete the code on both sides
 of the merge).
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here is the big set of tty/serial driver changes for 6.19-rc1. Nothing
  major at all, just small constant churn to make the tty layer
  "cleaner" as well as serial driver updates and even a new test added!
  Included in here are:

   - More tty/serial cleanups from Jiri

   - tty tiocsti test added to hopefully ensure we don't regress in this
     area again

   - sc16is7xx driver updates

   - imx serial driver updates

   - 8250 driver updates

   - new hardware device ids added

   - other minor serial/tty driver cleanups and tweaks

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (60 commits)
  serial: sh-sci: Fix deadlock during RSCI FIFO overrun error
  dt-bindings: serial: rsci: Drop "uart-has-rtscts: false"
  LoongArch: dts: Add uart new compatible string
  serial: 8250: Add Loongson uart driver support
  dt-bindings: serial: 8250: Add Loongson uart compatible
  serial: 8250: add driver for KEBA UART
  serial: Keep rs485 settings for devices without firmware node
  serial: qcom-geni: Enable Serial on SA8255p Qualcomm platforms
  serial: qcom-geni: Enable PM runtime for serial driver
  serial: sprd: Return -EPROBE_DEFER when uart clock is not ready
  tty: serial: samsung: Declare earlycon for Exynos850
  serial: icom: Convert PCIBIOS_* return codes to errnos
  serial: 8250-of: Fix style issues in 8250_of.c
  serial: add support of CPCI cards
  serial: mux: Fix kernel doc for mux_poll()
  tty: replace use of system_unbound_wq with system_dfl_wq
  serial: 8250_platform: simplify IRQF_SHARED handling
  serial: 8250: make share_irqs local to 8250_platform
  serial: 8250: move skip_txen_test to core
  serial: drop SERIAL_8250_DEPRECATED_OPTIONS
  ...
2025-12-06 18:38:19 -08:00
Linus Torvalds
83bd89291f Char/Misc/IIO driver updates for 6.19-rc1
Here is the big set of char/misc/iio driver updates for 6.19-rc1.  Lots
 of stuff in here including:
   - lots of IIO driver updates, cleanups, and additions.
   - large interconnect driver changes as they get converted over to a
     dynamic system of ids
   - coresight driver updates
   - mwave driver updates
   - binder driver updates and changes
   - comedi driver fixes now that the fuzzers are being set loose on them
   - nvmem driver updates
   - new uio driver addition
   - lots of other small char/misc driver updates, full details in the
     shortlog
 
 All of these have been in linux-next for a while now, with no reported
 issues other than a merge conflict with your tree that should be trivial
 to handle (take both sides).
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc/IIO driver updates from Greg KH:
 "Here is the big set of char/misc/iio driver updates for 6.19-rc1. Lots
  of stuff in here including:

   - lots of IIO driver updates, cleanups, and additions

   - large interconnect driver changes as they get converted over to a
     dynamic system of ids

   - coresight driver updates

   - mwave driver updates

   - binder driver updates and changes

   - comedi driver fixes now that the fuzzers are being set loose on
     them

   - nvmem driver updates

   - new uio driver addition

   - lots of other small char/misc driver updates, full details in the
     shortlog

  All of these have been in linux-next for a while now"

* tag 'char-misc-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (304 commits)
  char: applicom: fix NULL pointer dereference in ac_ioctl
  hangcheck-timer: fix coding style spacing
  hangcheck-timer: Replace %Ld with %lld
  hangcheck-timer: replace printk(KERN_CRIT) with pr_crit
  uio: Add SVA support for PCI devices via uio_pci_generic_sva.c
  dt-bindings: slimbus: fix warning from example
  intel_th: Fix error handling in intel_th_output_open
  misc: rp1: Fix an error handling path in rp1_probe()
  char: xillybus: add WQ_UNBOUND to alloc_workqueue users
  misc: bh1770glc: use pm_runtime_resume_and_get() in power_state_store
  misc: cb710: Fix a NULL vs IS_ERR() check in probe()
  mux: mmio: Add suspend and resume support
  virt: acrn: split acrn_mmio_dev_res out of acrn_mmiodev
  greybus: gb-beagleplay: Fix timeout handling in bootloader functions
  greybus: add WQ_PERCPU to alloc_workqueue users
  char/mwave: drop typedefs
  char/mwave: drop printk wrapper
  char/mwave: remove printk tracing
  char/mwave: remove unneeded fops
  char/mwave: remove MWAVE_FUTZ_WITH_OTHER_DEVICES ifdeffery
  ...
2025-12-06 18:34:24 -08:00
Linus Torvalds
701d7d782d SPDX License update for 6.19-rc1
Here is a single patch that updates the LGPL-2.1 license text with the
 "alternate" SPDX tags that are allowed for this license type.
 
 It's been in linux-next for a very long time with no reported issues
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

Pull SPDX License update from Greg KH:
 "Here is a single patch that updates the LGPL-2.1 license text with
  the "alternate" SPDX tags that are allowed for this license type"

* tag 'spdx-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
  LICENSES: Add modern form of the LGPL-2.1 tags to the usage guide section
2025-12-06 18:28:52 -08:00
Linus Torvalds
50471f8b73 parisc architecture fixes and updates for kernel v6.19-rc1:
- Fix boot on 710 workstation by not reprogramming ASP chip
 - Fix 64bit userspace syscalls (64-bit userspace is still being
   developed)
 - minor code cleanups in asm/bug.h and perf_regs.c
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Merge tag 'parisc-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc architecture updates from Helge Deller:
 "A fix which allows booting on the very old 710 workstations, and two
  fixes in the syscall entry/exit path which allow to execute 64-bit
  userspace binaries.

  Note that although we currently have a 64-bit (static) kernel to allow
  more than 4 GB physical RAM, there is no support for 64-bit userspace
  for parisc-linux yet, but Dave and Sven are making slowly progress to
  port and fix glibc and gcc.

  Summary:

   - Fix boot on 710 workstation by not reprogramming ASP chip

   - Fix 64bit userspace syscalls (64-bit userspace is still being
     developed)

   - minor code cleanups in asm/bug.h and perf_regs.c"

* tag 'parisc-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Do not reprogram affinitiy on ASP chip
  parisc: Drop linux/kernel.h include from asm/bug.h header
  parisc: remove unneeded semicolon in perf_regs.c
  parisc: entry.S: fix space adjustment on interruption for 64-bit userspace
  parisc: entry: set W bit for !compat tasks in syscall_restore_rfi()
  parisc: Drop padding fields and layers entries from inventory log
2025-12-06 16:24:52 -08:00
Linus Torvalds
0d1d44032f fbdev fixes & enhancements for 6.19-rc1:
Framework updates:
 - fonts: Add Terminus 10x18 console font [Neilay Kharwadkar]
 
 Driver fixes:
 - gbefb: fix to use physical address instead of dma address [René Rebe]
 - tcx.c fix mem_map to correct smem_start offset [René Rebe]
 - pxafb: Fix multiple clamped values in pxafb_adjust_timing [Thorsten Blum]
 - ssd1307fb: fix potential page leak in ssd1307fb_probe() [Abdun Nihaal]
 
 Cleanups:
 - vga16fb: Request memory region [Javier Garcia]
 - vga16fb: replace printk() with dev_*() in probe [Vivek BalachandharTN]
 - vesafb, gxt4500fb, tridentfb: Use dev_dbg() instead of printk() [Javier Garcia]
 - i810: use dev_info() [Shi Hao]
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Merge tag 'fbdev-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev updates from Helge Deller:
 "The Termius 10x18 console bitmap font has been added. It is good
  match for modern 13-16 inch laptop displays with resolutions like
  1280x800 and 1440x900 pixels.

  The gbefb and tcx.c drivers got some fixes to restore X11 support,
  pxafb was not actually clamping input values and the ssd1307fb driver
  leaked memory in the failure path.

  The other patches convert some common drivers to use dev_info() and
  dev_dbg() instead of printk(). Summary:

  Framework updates:
   - fonts: Add Terminus 10x18 console font [Neilay Kharwadkar]

  Driver fixes:
   - gbefb: fix to use physical address instead of dma address [René Rebe]
   - tcx.c fix mem_map to correct smem_start offset [René Rebe]
   - pxafb: Fix multiple clamped values in pxafb_adjust_timing [Thorsten Blum]
   - ssd1307fb: fix potential page leak in ssd1307fb_probe() [Abdun Nihaal]

  Cleanups:
   - vga16fb: Request memory region [Javier Garcia]
   - vga16fb: replace printk() with dev_*() in probe [Vivek BalachandharTN]
   - vesafb, gxt4500fb, tridentfb: Use dev_dbg() instead of printk() [Javier Garcia]
   - i810: use dev_info() [Shi Hao]"

* tag 'fbdev-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbdev: ssd1307fb: fix potential page leak in ssd1307fb_probe()
  fbdev: i810: use appopriate log interface dev_info
  fbdev: tridentfb: replace printk() with dev_*() in probe
  lib/fonts: Add Terminus 10x18 console font
  fbdev: pxafb: Fix multiple clamped values in pxafb_adjust_timing
  fbdev: tcx.c fix mem_map to correct smem_start offset
  fbdev: gxt4500fb: Use dev_err instead of printk
  fbdev: gbefb: fix to use physical address instead of dma address
  fbdev: vesafb: Use dev_* fn's instead printk
  fbdev: vga16fb: Request memory region
  fbdev: vga16fb: replace printk() with dev_*() in probe
2025-12-06 15:41:26 -08:00
Linus Torvalds
c06c303832 ocfs2: fix xattr array entry __counted_by error
Commit 2f26f58df0 ("ocfs2: annotate flexible array members with
__counted_by_le()") started annotating the flexible arrays used by
ocfs2, and now gcc complains about ocfs2_reflink_xattr_header():

  In function ‘fortify_memset_chk’,
      inlined from ‘ocfs2_reflink_xattr_header’ at fs/ocfs2/xattr.c:6365:5:
  include/linux/fortify-string.h:480:25: error: call to ‘__write_overflow_field’ declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]

and it looks like the complaint is valid - even if the actual error
message is somewhat confusing.

The 'last' pointer points to past the end of the counted flex array, but
is used as an actual 'last' entry rather than a 'one-past-last'.

It looks like the code copied and cleared an extra entry (which is
likely harmless in practice), but I don't know ocfs2 at all.  Because
it's also possible that the counted-by annotations are off-by-one, and
so this needs checking by somebody who actually knows ocfs2.

But in the meantime this fixes the build error, and certainly _looks_
sane.

Cc: Dmitry Antipov <dmantipov@yandex.ru>
Cc: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Heming Zhao <heming.zhao@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-12-06 15:28:11 -08:00
Linus Torvalds
509d3f4584 Significant patch series in this pull request:
- The 6 patch series "panic: sys_info: Refactor and fix a potential
   issue" from Andy Shevchenko fixes a build issue and does some cleanup in
   ib/sys_info.c.
 
 - The 9 patch series "Implement mul_u64_u64_div_u64_roundup()" from
   David Laight enhances the 64-bit math code on behalf of a PWM driver and
   beefs up the test module for these library functions.
 
 - The 2 patch series "scripts/gdb/symbols: make BPF debug info available
   to GDB" from Ilya Leoshkevich makes BPF symbol names, sizes, and line
   numbers available to the GDB debugger.
 
 - The 4 patch series "Enable hung_task and lockup cases to dump system
   info on demand" from Feng Tang adds a sysctl which can be used to cause
   additional info dumping when the hung-task and lockup detectors fire.
 
 - The 6 patch series "lib/base64: add generic encoder/decoder, migrate
   users" from Kuan-Wei Chiu adds a general base64 encoder/decoder to lib/
   and migrates several users away from their private implementations.
 
 - The 2 patch series "rbree: inline rb_first() and rb_last()" from Eric
   Dumazet makes TCP a little faster.
 
 - The 9 patch series "liveupdate: Rework KHO for in-kernel users" from
   Pasha Tatashin reworks the KEXEC Handover interfaces in preparation for
   Live Update Orchestrator (LUO), and possibly for other future clients.
 
 - The 13 patch series "kho: simplify state machine and enable dynamic
   updates" from Pasha Tatashin increases the flexibility of KEXEC
   Handover.  Also preparation for LUO.
 
 - The 18 patch series "Live Update Orchestrator" from Pasha Tatashin is
   a major new feature targeted at cloud environments.  Quoting the [0/N]:
 
     This series introduces the Live Update Orchestrator, a kernel subsystem
     designed to facilitate live kernel updates using a kexec-based reboot.
     This capability is critical for cloud environments, allowing hypervisors
     to be updated with minimal downtime for running virtual machines.  LUO
     achieves this by preserving the state of selected resources, such as
     memory, devices and their dependencies, across the kernel transition.
 
     As a key feature, this series includes support for preserving memfd file
     descriptors, which allows critical in-memory data, such as guest RAM or
     any other large memory region, to be maintained in RAM across the kexec
     reboot.
 
   Mike Rappaport merits a mention here, for his extensive review and
   testing work.
 
 - The 3 patch series "kexec: reorganize kexec and kdump sysfs" from
   Sourabh Jain moves the kexec and kdump sysfs entries from /sys/kernel/
   to /sys/kernel/kexec/ and adds back-compatibility symlinks which can
   hopefully be removed one day.
 
 - The 2 patch series "kho: fixes for vmalloc restoration" from Mike
   Rapoport fixes a BUG which was being hit during KHO restoration of
   vmalloc() regions.
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Merge tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - "panic: sys_info: Refactor and fix a potential issue" (Andy Shevchenko)
   fixes a build issue and does some cleanup in ib/sys_info.c

 - "Implement mul_u64_u64_div_u64_roundup()" (David Laight)
   enhances the 64-bit math code on behalf of a PWM driver and beefs up
   the test module for these library functions

 - "scripts/gdb/symbols: make BPF debug info available to GDB" (Ilya Leoshkevich)
   makes BPF symbol names, sizes, and line numbers available to the GDB
   debugger

 - "Enable hung_task and lockup cases to dump system info on demand" (Feng Tang)
   adds a sysctl which can be used to cause additional info dumping when
   the hung-task and lockup detectors fire

 - "lib/base64: add generic encoder/decoder, migrate users" (Kuan-Wei Chiu)
   adds a general base64 encoder/decoder to lib/ and migrates several
   users away from their private implementations

 - "rbree: inline rb_first() and rb_last()" (Eric Dumazet)
   makes TCP a little faster

 - "liveupdate: Rework KHO for in-kernel users" (Pasha Tatashin)
   reworks the KEXEC Handover interfaces in preparation for Live Update
   Orchestrator (LUO), and possibly for other future clients

 - "kho: simplify state machine and enable dynamic updates" (Pasha Tatashin)
   increases the flexibility of KEXEC Handover. Also preparation for LUO

 - "Live Update Orchestrator" (Pasha Tatashin)
   is a major new feature targeted at cloud environments. Quoting the
   cover letter:

      This series introduces the Live Update Orchestrator, a kernel
      subsystem designed to facilitate live kernel updates using a
      kexec-based reboot. This capability is critical for cloud
      environments, allowing hypervisors to be updated with minimal
      downtime for running virtual machines. LUO achieves this by
      preserving the state of selected resources, such as memory,
      devices and their dependencies, across the kernel transition.

      As a key feature, this series includes support for preserving
      memfd file descriptors, which allows critical in-memory data, such
      as guest RAM or any other large memory region, to be maintained in
      RAM across the kexec reboot.

   Mike Rappaport merits a mention here, for his extensive review and
   testing work.

 - "kexec: reorganize kexec and kdump sysfs" (Sourabh Jain)
   moves the kexec and kdump sysfs entries from /sys/kernel/ to
   /sys/kernel/kexec/ and adds back-compatibility symlinks which can
   hopefully be removed one day

 - "kho: fixes for vmalloc restoration" (Mike Rapoport)
   fixes a BUG which was being hit during KHO restoration of vmalloc()
   regions

* tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (139 commits)
  calibrate: update header inclusion
  Reinstate "resource: avoid unnecessary lookups in find_next_iomem_res()"
  vmcoreinfo: track and log recoverable hardware errors
  kho: fix restoring of contiguous ranges of order-0 pages
  kho: kho_restore_vmalloc: fix initialization of pages array
  MAINTAINERS: TPM DEVICE DRIVER: update the W-tag
  init: replace simple_strtoul with kstrtoul to improve lpj_setup
  KHO: fix boot failure due to kmemleak access to non-PRESENT pages
  Documentation/ABI: new kexec and kdump sysfs interface
  Documentation/ABI: mark old kexec sysfs deprecated
  kexec: move sysfs entries to /sys/kernel/kexec
  test_kho: always print restore status
  kho: free chunks using free_page() instead of kfree()
  selftests/liveupdate: add kexec test for multiple and empty sessions
  selftests/liveupdate: add simple kexec-based selftest for LUO
  selftests/liveupdate: add userspace API selftests
  docs: add documentation for memfd preservation via LUO
  mm: memfd_luo: allow preserving memfd
  liveupdate: luo_file: add private argument to store runtime state
  mm: shmem: export some functions to internal.h
  ...
2025-12-06 14:01:20 -08:00
Linus Torvalds
09670b8c38 tracing fixes for v6.19:
- Fix accounting of stop_count in file release
 
   On opening the trace file, if "pause-on-trace" option is set, it will
   increment the stop_count. On file release, it checks if stop_count is set,
   and if so it decrements it. Since this code was originally written, the
   stop_count can be incremented by other use cases. This makes just checking
   the stop_count not enough to know if it should be decremented.
 
   Add a new iterator flag called "PAUSE" and have it set if the open
   disables tracing and only decrement the stop_count if that flag is set on
   close.
 
 - Remove length field in trace_seq_printf() of print_synth_event()
 
   When printing the synthetic event that has a static length array field,
   the vsprintf() of the trace_seq_printf() triggered a "(efault)" in the
   output. That's because the print_fmt replaced the "%.*s" with "%s" causing
   the arguments to be off.
 
 - Fix a bunch of typos
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Merge tag 'trace-v6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Fix accounting of stop_count in file release

   On opening the trace file, if "pause-on-trace" option is set, it will
   increment the stop_count. On file release, it checks if stop_count is
   set, and if so it decrements it. Since this code was originally
   written, the stop_count can be incremented by other use cases. This
   makes just checking the stop_count not enough to know if it should be
   decremented.

   Add a new iterator flag called "PAUSE" and have it set if the open
   disables tracing and only decrement the stop_count if that flag is
   set on close.

 - Remove length field in trace_seq_printf() of print_synth_event()

   When printing the synthetic event that has a static length array
   field, the vsprintf() of the trace_seq_printf() triggered a
   "(efault)" in the output. That's because the print_fmt replaced the
   "%.*s" with "%s" causing the arguments to be off.

 - Fix a bunch of typos

* tag 'trace-v6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Fix typo in trace_seq.c
  tracing: Fix typo in trace_probe.c
  tracing: Fix multiple typos in trace_osnoise.c
  tracing: Fix multiple typos in trace_events_user.c
  tracing: Fix typo in trace_events_trigger.c
  tracing: Fix typo in trace_events_hist.c
  tracing: Fix typo in trace_events_filter.c
  tracing: Fix multiple typos in trace_events.c
  tracing: Fix multiple typos in trace.c
  tracing: Fix typo in ring_buffer_benchmark.c
  tracing: Fix multiple typos in ring_buffer.c
  tracing: Fix typo in fprobe.c
  tracing: Fix typo in fpgraph.c
  tracing: Fix fixed array of synthetic event
  tracing: Fix enabling of tracing on file release
2025-12-06 13:49:40 -08:00
Linus Torvalds
cc3ee4ba57 Miscellaneous documentation fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Miscellaneous documentation fixes"

* tag 'x86-urgent-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot/Documentation: Prefix hexadecimal literals with 0x
  x86/boot/Documentation: Spell 'ID' consistently
  x86/platform: Fix and extend kernel-doc comments in <asm/x86_init.h>
2025-12-06 12:33:26 -08:00
Linus Torvalds
09bcd5ef66 Miscellaneous scheduler fixes/cleanups:
- Fix psi_dequeue() for Proxy Execution
   - Fix hrtick() vs. scheduling context bug
   - Fix unfairness caused by stalled tg_load_avg_contrib when the last task migrates out
   - Fix whitespace noise in headers
   - Remove a preempt-disable section in rt_mutex_setprio()
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:
 "Miscellaneous scheduler fixes/cleanups:

   - Fix psi_dequeue() for Proxy Execution

   - Fix hrtick() vs. scheduling context bug

   - Fix unfairness caused by stalled tg_load_avg_contrib when the last
     task migrates out

   - Fix whitespace noise in headers

   - Remove a preempt-disable section in rt_mutex_setprio()"

* tag 'sched-urgent-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/core: Fix psi_dequeue() for Proxy Execution
  sched/fair: Fix unfairness caused by stalled tg_load_avg_contrib when the last task migrates out
  sched/rt: Remove a preempt-disable section in rt_mutex_setprio()
  sched/hrtick: Fix hrtick() vs. scheduling context
  sched/headers: Remove whitespace noise from kernel/sched/sched.h
2025-12-06 12:31:21 -08:00
Linus Torvalds
08b8ddac1f Address various objtool scalability bugs/inefficiencies exposed by
allmodconfig builds, plus improve the quality of alternatives
 instructions generated code and disassembly.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-urgent-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool fixes from Ingo Molnar:
 "Address various objtool scalability bugs/inefficiencies exposed by
  allmodconfig builds, plus improve the quality of alternatives
  instructions generated code and disassembly"

* tag 'objtool-urgent-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Simplify .annotate_insn code generation output some more
  objtool: Add more robust signal error handling, detect and warn about stack overflows
  objtool: Remove newlines and tabs from annotation macros
  objtool: Consolidate annotation macros
  x86/asm: Remove ANNOTATE_DATA_SPECIAL usage
  x86/alternative: Remove ANNOTATE_DATA_SPECIAL usage
  objtool: Fix stack overflow in validate_branch()
2025-12-06 11:56:51 -08:00
Linus Torvalds
92fc1f16e2 Two fixes related to recent introduction of scoped_seqlock_read():
- Fix compiler build failures when a particular .config and
    compiler build options variant doesn't result in the
    expected removal of unused, catch-bugs portions of
    scoped_seqlock_read() by the inliner at build time,
    and cause a linker fail even in correct code.
 
  - Match read-locking order in do_task_stat() and
    do_io_accounting(). The inconsistency here was harmless
    but unnecessary.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-urgent-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fixes from Ingo Molnar:
 "Two fixes related to recent introduction of scoped_seqlock_read():

   - Fix compiler build failures when a particular .config and compiler
     build options variant doesn't result in the expected removal of
     unused, catch-bugs portions of scoped_seqlock_read() by the inliner
     at build time, and cause a linker fail even in correct code

   - Match read-locking order in do_task_stat() and do_io_accounting().
     The inconsistency here was harmless but unnecessary"

* tag 'locking-urgent-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  seqlock: Cure some more scoped_seqlock() optimization fails
  seqlock, procfs: Match scoped_seqlock_read() critical section vs. RCU ordering in do_task_stat() to do_io_accounting()
2025-12-06 11:31:49 -08:00
Linus Torvalds
5e5ea7f616 iommu/amd: fix SEV-TIO support reporting
Commit eeb934137d ("iommu/amd: Report SEV-TIO support") was confused
about the config options that expose amd_iommu_sev_tio_supported(), and
made the declaration (and alternative dummy function) conditional on the
CONFIG_AMD_IOMMU config option.

But the code is actually dependent on CONFIG_KVM_AMD_SEV, resulting in

   ERROR: modpost: "amd_iommu_sev_tio_supported" [drivers/crypto/ccp/ccp.ko] undefined!
   make[2]: *** [scripts/Makefile.modpost:147: Module.symvers] Error 1

if you have the AMD iommu enabled, but don't enable KVM_AMD_SEV support.

Fix it by moving the declaration into the right #ifdef section in the
header file.

Fixes: eeb934137d ("iommu/amd: Report SEV-TIO support")
Cc: Alexey Kardashevskiy <aik@amd.com>
Cc: Joerg Roedel <joerg.roedel@amd.com>
Cc: Vasant Hegde <vasant.hegde@amd.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-12-06 11:13:50 -08:00
Linus Torvalds
b0319c4642 NFSD 6.19 Release Notes
Mike Snitzer's mechanism for disabling I/O caching introduced in
 v6.18 is extended to include using direct I/O. The goal is to
 further reduce the memory footprint consumed by NFS clients
 accessing large data sets via NFSD.
 
 The NFSD community adopted a maintainer entry profile during this
 cycle. See
 
   Documentation/filesystems/nfs/nfsd-maintainer-entry-profile.rst
 
 Work continues on hardening NFSD's implementation of the pNFS block
 layout type. This type enables pNFS clients to directly access the
 underlying block devices that contain an exported file system,
 reducing server overhead and increasing data throughput.
 
 The remaining patches in this pull request are clean-ups and minor
 optimizations. Many thanks to the contributors, reviewers, testers,
 and bug reporters who participated during the v6.19 NFSD development
 cycle.
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Merge tag 'nfsd-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:

 - Mike Snitzer's mechanism for disabling I/O caching introduced in
   v6.18 is extended to include using direct I/O. The goal is to further
   reduce the memory footprint consumed by NFS clients accessing large
   data sets via NFSD.

 - The NFSD community adopted a maintainer entry profile during this
   cycle. See

      Documentation/filesystems/nfs/nfsd-maintainer-entry-profile.rst

 - Work continues on hardening NFSD's implementation of the pNFS block
   layout type. This type enables pNFS clients to directly access the
   underlying block devices that contain an exported file system,
   reducing server overhead and increasing data throughput.

 - The remaining patches are clean-ups and minor optimizations. Many
   thanks to the contributors, reviewers, testers, and bug reporters who
   participated during the v6.19 NFSD development cycle.

* tag 'nfsd-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (38 commits)
  NFSD: nfsd-io-modes: Separate lists
  NFSD: nfsd-io-modes: Wrap shell snippets in literal code blocks
  NFSD: Add toctree entry for NFSD IO modes docs
  NFSD: add Documentation/filesystems/nfs/nfsd-io-modes.rst
  NFSD: Implement NFSD_IO_DIRECT for NFS WRITE
  NFSD: Make FILE_SYNC WRITEs comply with spec
  NFSD: Add trace point for SCSI fencing operation.
  NFSD: use correct reservation type in nfsd4_scsi_fence_client
  xdrgen: Don't generate unnecessary semicolon
  xdrgen: Fix union declarations
  NFSD: don't start nfsd if sv_permsocks is empty
  xdrgen: handle _XdrString in union encoder/decoder
  xdrgen: Fix the variable-length opaque field decoder template
  xdrgen: Make the xdrgen script location-independent
  xdrgen: Generalize/harden pathname construction
  lockd: don't allow locking on reexported NFSv2/3
  MAINTAINERS: add a nfsd blocklayout reviewer
  nfsd: Use MD5 library instead of crypto_shash
  nfsd: stop pretending that we cache the SEQUENCE reply.
  NFS: nfsd-maintainer-entry-profile: Inline function name prefixes
  ...
2025-12-06 10:57:02 -08:00
Linus Torvalds
1a68aefc71 xen: branch for v6.19-rc1
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Merge tag 'for-linus-6.19-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from Juergen Gross:
 "This round it contains only three small cleanup patches"

* tag 'for-linus-6.19-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  drivers/xen: use min() instead of min_t()
  drivers/xen/xenbus: Replace deprecated strcpy in xenbus_transaction_end
  drivers/xen/xenbus: Simplify return statement in join()
2025-12-06 10:49:19 -08:00
Linus Torvalds
249872f53d tsm for 6.19
- Introduce the PCI/TSM core for the coordination of device
   authentication, link encryption and establishment (IDE), and later
   management of the device security operational states (TDISP). Notify
   the new TSM core layer of PCI device arrival and departure.
 
 - Add a low level TSM driver for the link encryption establishment
   capabilities of the AMD SEV-TIO architecture.
 
 - Add a library of helpers TSM drivers to use for IDE establishment and
   the DOE transport.
 
 - Add skeleton support for 'bind' and 'guest_request' operations in
   support of TDISP.
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Merge tag 'tsm-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm

Pull PCIe Link Encryption and Device Authentication from Dan Williams:
 "New PCI infrastructure and one architecture implementation for PCIe
  link encryption establishment via platform firmware services.

  This work is the result of multiple vendors coming to consensus on
  some core infrastructure (thanks Alexey, Yilun, and Aneesh!), and
  three vendor implementations, although only one is included in this
  pull. The PCI core changes have an ack from Bjorn, the crypto/ccp/
  changes have an ack from Tom, and the iommu/amd/ changes have an ack
  from Joerg.

  PCIe link encryption is made possible by the soup of acronyms
  mentioned in the shortlog below. Link Integrity and Data Encryption
  (IDE) is a protocol for installing keys in the transmitter and
  receiver at each end of a link. That protocol is transported over Data
  Object Exchange (DOE) mailboxes using PCI configuration requests.

  The aspect that makes this a "platform firmware service" is that the
  key provisioning and protocol is coordinated through a Trusted
  Execution Envrionment (TEE) Security Manager (TSM). That is either
  firmware running in a coprocessor (AMD SEV-TIO), or quasi-hypervisor
  software (Intel TDX Connect / ARM CCA) running in a protected CPU
  mode.

  Now, the only reason to ask a TSM to run this protocol and install the
  keys rather than have a Linux driver do the same is so that later, a
  confidential VM can ask the TSM directly "can you certify this
  device?".

  That precludes host Linux from provisioning its own keys, because host
  Linux is outside the trust domain for the VM. It also turns out that
  all architectures, save for one, do not publish a mechanism for an OS
  to establish keys in the root port. So "TSM-established link
  encryption" is the only cross-architecture path for this capability
  for the foreseeable future.

  This unblocks the other arch implementations to follow in v6.20/v7.0,
  once they clear some other dependencies, and it unblocks the next
  phase of work to implement the end-to-end flow of confidential device
  assignment. The PCIe specification calls this end-to-end flow Trusted
  Execution Environment (TEE) Device Interface Security Protocol
  (TDISP).

  In the meantime, Linux gets a link encryption facility which has
  practical benefits along the same lines as memory encryption. It
  authenticates devices via certificates and may protect against
  interposer attacks trying to capture clear-text PCIe traffic.

  Summary:

   - Introduce the PCI/TSM core for the coordination of device
     authentication, link encryption and establishment (IDE), and later
     management of the device security operational states (TDISP).
     Notify the new TSM core layer of PCI device arrival and departure

   - Add a low level TSM driver for the link encryption establishment
     capabilities of the AMD SEV-TIO architecture

   - Add a library of helpers TSM drivers to use for IDE establishment
     and the DOE transport

   - Add skeleton support for 'bind' and 'guest_request' operations in
     support of TDISP"

* tag 'tsm-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm: (23 commits)
  crypto/ccp: Fix CONFIG_PCI=n build
  virt: Fix Kconfig warning when selecting TSM without VIRT_DRIVERS
  crypto/ccp: Implement SEV-TIO PCIe IDE (phase1)
  iommu/amd: Report SEV-TIO support
  psp-sev: Assign numbers to all status codes and add new
  ccp: Make snp_reclaim_pages and __sev_do_cmd_locked public
  PCI/TSM: Add 'dsm' and 'bound' attributes for dependent functions
  PCI/TSM: Add pci_tsm_guest_req() for managing TDIs
  PCI/TSM: Add pci_tsm_bind() helper for instantiating TDIs
  PCI/IDE: Initialize an ID for all IDE streams
  PCI/IDE: Add Address Association Register setup for downstream MMIO
  resource: Introduce resource_assigned() for discerning active resources
  PCI/TSM: Drop stub for pci_tsm_doe_transfer()
  drivers/virt: Drop VIRT_DRIVERS build dependency
  PCI/TSM: Report active IDE streams
  PCI/IDE: Report available IDE streams
  PCI/IDE: Add IDE establishment helpers
  PCI: Establish document for PCI host bridge sysfs attributes
  PCI: Add PCIe Device 3 Extended Capability enumeration
  PCI/TSM: Establish Secure Sessions and Link Encryption
  ...
2025-12-06 10:15:41 -08:00
Linus Torvalds
fbff949679 linux-watchdog 6.19-rc1 tag
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Merge tag 'linux-watchdog-6.19-rc1' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - Add watchdog support for:
     - Renesas WWDT
     - AST2700 platform
     - MediaTek MT8189 SoC
     - Loongson-2k0300 watchdog
     - Qualcomm Kaanapali watchdog
     - RK3506 compatible
     - Airoha AN7583 SoC

 - DT Schema conversions:
     - lantiq,wdt
     - TI OMAP
     - marvell,orion-wdt

 - Several other fixes and improvements

* tag 'linux-watchdog-6.19-rc1' of git://www.linux-watchdog.org/linux-watchdog: (30 commits)
  watchdog: starfive: Fix resource leak in probe error path
  dt-bindings: watchdog: airoha: Add support for Airoha AN7583 SoC
  dt-bindings: watchdog: lantiq,wdt: convert bindings to dtschema
  dt-bindings: watchdog: Add RK3506 compatible
  dt-bindings: watchdog: Document Qualcomm Kaanapali watchdog
  watchdog: wdat_wdt: Fix ACPI table leak in probe function
  watchdog: loongson1: Add Loongson-2k0300 watchdog support
  dt-bindings: watchdog: loongson,ls1x-wdt: Add ls2k0300-wdt compatible
  watchdog: loongson1: Drop CONFIG_OF
  watchdog: loongson1: Simplify ls1x_wdt_probe code
  watchdog: loongson1: Add missing MODULE_PARM_DESC
  watchdog/diag288: Fix module comment typos
  dt-bindings: watchdog: Support MediaTek MT8189 wdt
  dt-bindings: watchdog: mediatek,mtk-wdt: Add compatible for MT8189 SoC
  dt-bindings: mfd: rohm,bd96801-pmic: Correct timeout-sec length and reference watchdog schema
  dt-bindings: watchdog: Allow node names named 'pmic'
  dt-bindings: watchdog: Restrict timeout-sec to one number
  watchdog: renesas_wwdt: add driver
  dt-bindings: watchdog: Add Renesas WWDT
  dt-bindings: watchdog: Convert marvell,orion-wdt to DT schema
  ...
2025-12-06 10:00:49 -08:00
Linus Torvalds
973ec55764 rpmsg updates for v6.19
Reduce code duplication related to channel removal, and invoke the
 removal in one case previously missing, in the Glink driver.
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Merge tag 'rpmsg-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux

Pull rpmsg updates from Bjorn Andersson:

 - Reduce code duplication related to channel removal, and invoke the
   removal in one case previously missing, both in the Glink driver

* tag 'rpmsg-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux:
  rpmsg: glink: remove duplicate code for rpmsg device remove
  rpmsg: glink: fix rpmsg device leak
2025-12-06 09:58:02 -08:00
Linus Torvalds
e637b37a52 remoteproc updates for v6.19
Add support for the compute DSP in the Qualcomm SDM660 platform, and
 finally fix up the way MSM8974 audio DSP remoteproc driver manages its
 power rails.
 
 Replace the usage of of_reserved_mem_lookup() with
 of_reserved_mem_region_to_resource() to clean things up across most of
 the drivers.
 
 Perform a variety of housekeeping and cleanup work across iMX, Mediatek,
 and TI remoteproc drivers.
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Merge tag 'rproc-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux

Pull remoteproc updates from Bjorn Andersson:

 - Add support for the compute DSP in the Qualcomm SDM660 platform, and
   finally fix up the way MSM8974 audio DSP remoteproc driver manages
   its power rails

 - Replace the usage of of_reserved_mem_lookup() with
   of_reserved_mem_region_to_resource() to clean things up across most
   of the drivers

 - Perform a variety of housekeeping and cleanup work across iMX,
   Mediatek, and TI remoteproc drivers

* tag 'rproc-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: (45 commits)
  remoteproc: qcom_q6v5_wcss: use optional reset for wcss_q6_bcr_reset
  remoteproc: qcom_q6v5_wcss: fix parsing of qcom,halt-regs
  remoteproc: qcom_wcnss: Fix NULL vs IS_ERR() bug in wcnss_alloc_memory_region()
  remoteproc: qcom: q6v5: Fix NULL vs IS_ERR() bug in q6v5_alloc_memory_region()
  remoteproc: qcom: pas: Fix a couple NULL vs IS_ERR() bugs
  remoteproc: qcom_q6v5_adsp: Fix a NULL vs IS_ERR() check in adsp_alloc_memory_region()
  remoteproc: imx_dsp_rproc: Fix NULL vs IS_ERR() bug in imx_dsp_rproc_add_carveout()
  remoteproc: st: Fix indexing of memory-regions
  remoteproc: qcom: pas: Add support for SDM660 CDSP
  dt-bindings: remoteproc: qcom: adsp: Add SDM660 CDSP compatible
  dt-bindings: remoteproc: qcom: adsp: Add missing constrains for SDM660 ADSP
  dt-bindings: remoteproc: qcom,sc8280xp-pas: Fix CDSP power desc
  remoteproc: omap: Remove redundant pm_runtime_mark_last_busy() calls
  remoteproc: qcom: Use of_reserved_mem_region_* functions for "memory-region"
  remoteproc: qcom_q6v5_pas: Use resource with CX PD for MSM8974
  dt-bindings: remoteproc: qcom,adsp: Make msm8974 use CX as power domain
  remoteproc: Use of_reserved_mem_region_* functions for "memory-region"
  remoteproc: imx_dsp_rproc: Simplify start/stop error handling
  remoteproc: imx_rproc: Remove enum imx_rproc_method
  remoteproc: imx_dsp_rproc: Simplify IMX_RPROC_RESET_CONTROLLER switch case
  ...
2025-12-06 09:55:38 -08:00
Linus Torvalds
eee654ca9a Landlock update for v6.19-rc1
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Merge tag 'landlock-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull landlock updates from Mickaël Salaün:
 "This mainly fixes handling of disconnected directories and adds new
  tests"

* tag 'landlock-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  selftests/landlock: Add disconnected leafs and branch test suites
  selftests/landlock: Add tests for access through disconnected paths
  landlock: Improve variable scope
  landlock: Fix handling of disconnected directories
  selftests/landlock: Fix makefile header list
  landlock: Make docs in cred.h and domain.h visible
  landlock: Minor comments improvements
2025-12-06 09:52:41 -08:00
Linus Torvalds
10003ff8ce turbostat-v2025.12.02
Since turbostat-v2025.09.09:
 
 Add LLC statistics columns:
 	LLCkRPS = Last Level Cache Thousands of References Per Second
 	LLC%hit = Last Level Cache Hit %
 Recognize Wildcat Lake and Nova Lake platforms
 Add MSR check for Android
 Add APERF check for VMWARE
 Add RAPL check for AWS
 Minor fixes to turbostat (and x86_energy_perf_policy)
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Merge tag 'turbostat-v2025.12.02' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Pull turbostat updates from Len Brown:

 - Add LLC statistics columns:
	LLCkRPS = Last Level Cache Thousands of References Per Second
	LLC%hit = Last Level Cache Hit %

 - Recognize Wildcat Lake and Nova Lake platforms

 - Add MSR check for Android

 - Add APERF check for VMWARE

 - Add RAPL check for AWS

 - Minor fixes to turbostat (and x86_energy_perf_policy)

* tag 'turbostat-v2025.12.02' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (21 commits)
  tools/power turbostat: version 2025.12.02
  tools/power turbostat: Print wide names only for RAW 64-bit columns
  tools/power turbostat: Print percentages in 8-columns
  tools/power turbostat: Print "nan" for out of range percentages
  tools/power turbostat: Validate APERF access for VMWARE
  tools/power turbostat: Enhance perf probe
  tools/power turbostat: Validate RAPL MSRs for AWS Nitro Hypervisor
  tools/power x86_energy_perf_policy: Fix potential NULL pointer dereference
  tools/power x86_energy_perf_policy: Fix format string in error message
  tools/power x86_energy_perf_policy: Simplify Android MSR probe
  tools/power x86_energy_perf_policy: Add Android MSR device support
  tools/power turbostat: Add run-time MSR driver probe
  tools/power turbostat: Set per_cpu_msr_sum to NULL after free
  tools/power turbostat: Add LLC stats
  tools/power turbostat: Remove dead code
  tools/power turbostat: Refactor floating point printout code
  tools/power turbostat.8: Update example
  tools/power turbostat: Refactor added-counter value printing code
  tools/power turbostat: Refactor added column header printing
  tools/power turbostat: Add Wildcat Lake and Nova Lake support
  ...
2025-12-06 09:35:00 -08:00
Linus Torvalds
56a1a04dc9 NVDIMM changes for 6.19
* nvdimm: Prevent integer overflow in ramdax_get_config_data()
 	* Documentation: btt: Unwrap bit 31-30 nested table
 	* nvdimm: replace use of system_wq with system_percpu_wq
 	* tools/testing/nvdimm: Use per-DIMM device handle
 	* nvdimm: allow exposing RAM carveouts as NVDIMM DIMM devices
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Merge tag 'libnvdimm-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull nvdimm updates from Ira Weiny:
 "These are mainly bug fixes and code updates.

  There is a new feature to divide up memmap= carve outs and a fix
  caught in linux-next for that patch. Managing memmap memory on the fly
  for multiple VM's was proving difficult and Mike provided a driver
  which allows for the memory to be better manged.

  Summary:
   - Allow exposing RAM carveouts as NVDIMM DIMM devices
   - Prevent integer overflow in ramdax_get_config_data()
   - Replace use of system_wq with system_percpu_wq
   - Documentation: btt: Unwrap bit 31-30 nested table
   - tools/testing/nvdimm: Use per-DIMM device handle"

* tag 'libnvdimm-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  nvdimm: Prevent integer overflow in ramdax_get_config_data()
  Documentation: btt: Unwrap bit 31-30 nested table
  nvdimm: replace use of system_wq with system_percpu_wq
  tools/testing/nvdimm: Use per-DIMM device handle
  nvdimm: allow exposing RAM carveouts as NVDIMM DIMM devices
2025-12-06 09:32:25 -08:00
Linus Torvalds
a7405aa92f dma-mapping updates for Linux 6.19:
- next part of DMA mapping API refactoring to physical addresses as the primary
 interface instead of page+offset parameters; this time dma_map_ops callbacks
 are converted to physical addresses, what in turn results also in some
 simplification of architecture specific code (Leon Romanovsky and Jason
 Gunthorpe)
 - clarify that dma_map_benchmark is not a kernel self-test, but standalone
 tool (Qinxin Xia)
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Merge tag 'dma-mapping-6.19-2025-12-05' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux

Pull dma-mapping updates from Marek Szyprowski:

 - More DMA mapping API refactoring to physical addresses as the primary
   interface instead of page+offset parameters.

   This time dma_map_ops callbacks are converted to physical addresses,
   what in turn results also in some simplification of architecture
   specific code (Leon Romanovsky and Jason Gunthorpe)

 - Clarify that dma_map_benchmark is not a kernel self-test, but
   standalone tool (Qinxin Xia)

* tag 'dma-mapping-6.19-2025-12-05' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
  dma-mapping: remove unused map_page callback
  xen: swiotlb: Convert mapping routine to rely on physical address
  x86: Use physical address for DMA mapping
  sparc: Use physical address DMA mapping
  powerpc: Convert to physical address DMA mapping
  parisc: Convert DMA map_page to map_phys interface
  MIPS/jazzdma: Provide physical address directly
  alpha: Convert mapping routine to rely on physical address
  dma-mapping: remove unused mapping resource callbacks
  xen: swiotlb: Switch to physical address mapping callbacks
  ARM: dma-mapping: Switch to physical address mapping callbacks
  ARM: dma-mapping: Reduce struct page exposure in arch_sync_dma*()
  dma-mapping: convert dummy ops to physical address mapping
  dma-mapping: prepare dma_map_ops to conversion to physical address
  tools/dma: move dma_map_benchmark from selftests to tools/dma
2025-12-06 09:25:05 -08:00
Linus Torvalds
f468cf53c5 bitmap updates for v6.19
- Runtime field_{get,prep}() (Geert);
  - Rust ID pool updates (Alice);
  - min_t() simplification (David);
  - __sw_hweightN kernel-doc fixes (Andy);
  - cpumask.h headers cleanup (Andy).
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Merge tag 'bitmap-for-6.19' of github.com:/norov/linux

Pull bitmap updates from Yury Norov:

 - Runtime field_{get,prep}() (Geert)

 - Rust ID pool updates (Alice)

 - min_t() simplification (David)

 - __sw_hweightN kernel-doc fixes (Andy)

 - cpumask.h headers cleanup (Andy)

* tag 'bitmap-for-6.19' of github.com:/norov/linux: (32 commits)
  rust_binder: use bitmap for allocation of handles
  rust: id_pool: do not immediately acquire new ids
  rust: id_pool: do not supply starting capacity
  rust: id_pool: rename IdPool::new() to with_capacity()
  rust: bitmap: add BitmapVec::new_inline()
  rust: bitmap: add MAX_LEN and MAX_INLINE_LEN constants
  cpumask: Don't use "proxy" headers
  soc: renesas: Use bitfield helpers
  clk: renesas: Use bitfield helpers
  ALSA: usb-audio: Convert to common field_{get,prep}() helpers
  soc: renesas: rz-sysc: Convert to common field_get() helper
  pinctrl: ma35: Convert to common field_{get,prep}() helpers
  iio: mlx90614: Convert to common field_{get,prep}() helpers
  iio: dac: Convert to common field_prep() helper
  gpio: aspeed: Convert to common field_{get,prep}() helpers
  EDAC/ie31200: Convert to common field_get() helper
  crypto: qat - convert to common field_get() helper
  clk: at91: Convert to common field_{get,prep}() helpers
  bitfield: Add non-constant field_{prep,get}() helpers
  bitfield: Add less-checking __FIELD_{GET,PREP}()
  ...
2025-12-06 09:01:27 -08:00
Miguel Ojeda
309e49039f rust: sync: atomic: separate import "blocks"
Commit 14e9a18b07 ("rust: sync: atomic: Make Atomic*Ops pub(crate)")
added a `pub(crate)` import in the same "block" as the `pub` one,
without running `rustfmt`, which would sort them differently.

Instead of running `rustfmt` as-is, add a newline to keep the import
"blocks" with different visibilities separate.

Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-12-06 08:44:10 -08:00
Linus Torvalds
c84d574698 Modules changes for v6.19-rc1
Rust module parameter support:
 
 - Add Rust module parameter support, enabling Rust kernel modules to declare
   and use module parameters. The rust_minimal sample module demonstrates this,
   and the rust null block driver will be the first to use it in the next cycle.
   This also adds the Rust module files under the modules subsystem as agreed
   between the Rust and modules maintainers.
 
 Hardening:
 
 - Add compile-time check for embedded NUL characters in MODULE_*() macros. This
   module metadata was once used (and maybe still) to bypass license enforcement
   (LWN article [1] from 2003). This change required a sparse fix [2] which you
   reviewed.
 
 MAINTAINERS:
 
 - Add Aaron Tomlin as reviewer for the Modules subsystem.
 
 The changes have been in linux-next for 4 weeks. Recent 0day reports for UM [3]
 and arm64 [4] builds were not reproducible and traced to a buggy bindgen version
 combined with unreleased clang-22 in 0day. The Rust team has reported this to
 0day.
 
 As discussed previously, we rotate module maintainership among co-maintainers
 every 6 months. Sami Tolvanen is next in line and will send the next pull
 request. As a reminder, Luis has already announced [5] he will gradually step
 away as maintainer.
 
 Link: https://lwn.net/Articles/82305/ [1]
 Link: https://lore.kernel.org/linux-sparse/CACePvbVG2KrGQq4cNKV=wbO5h=jp3M0RO1SdfX8kV4OukjPG8A@mail.gmail.com/T/#mf838b3e2e3245d88c30a801ea7473d5a5c0eb121 [2]
 Link: https://lore.kernel.org/oe-kbuild-all/202511210858.uwVivgvn-lkp@intel.com/ [3]
 Link: https://lore.kernel.org/oe-kbuild-all/202512020454.Tf36WHw5-lkp@intel.com/ [4]
 Link: https://lore.kernel.org/linux-modules/aGiAF8IQ4PRYn0th@bombadil.infradead.org/ [5]
 Signed-off-by: Daniel Gomez <da.gomez@samsung.com>
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Merge tag 'modules-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux

Pull module updates from Daniel Gomez:
 "Rust module parameter support:

   - Add Rust module parameter support, enabling Rust kernel modules to
     declare and use module parameters. The rust_minimal sample module
     demonstrates this, and the rust null block driver will be the first
     to use it in the next cycle. This also adds the Rust module files
     under the modules subsystem as agreed between the Rust and modules
     maintainers.

  Hardening:

   - Add compile-time check for embedded NUL characters in MODULE_*()
     macros. This module metadata was once used (and maybe still) to
     bypass license enforcement (LWN article from 2003):

	https://lwn.net/Articles/82305/ [1]

  MAINTAINERS:

   - Add Aaron Tomlin as reviewer for the Modules subsystem"

* tag 'modules-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux:
  MAINTAINERS: Add myself as reviewer for module support
  module: Add compile-time check for embedded NUL characters
  media: radio: si470x: Fix DRIVER_AUTHOR macro definition
  media: dvb-usb-v2: lmedm04: Fix firmware macro definitions
  modules: add rust modules files to MAINTAINERS
  rust: samples: add a module parameter to the rust_minimal sample
  rust: module: update the module macro with module parameter support
  rust: module: use a reference in macros::module::module
  rust: introduce module_param module
  rust: str: add radix prefixed integer parsing functions
  rust: sync: add `SetOnce`
2025-12-06 08:27:07 -08:00
Arnd Bergmann
dd44d4d0c5 gpio: tb10x: fix OF_GPIO dependency
Selecting OF_GPIO is generally not allowed, it always gets enabled
when both GPIOLIB and OF are turned on.

The tb10x driver now warns about this after it was enabled for
compile-testing:

WARNING: unmet direct dependencies detected for OF_GPIO
  Depends on [n]: GPIOLIB [=y] && OF [=n] && HAS_IOMEM [=y]
  Selected by [y]:
  - GPIO_TB10X [=y] && GPIOLIB [=y] && HAS_IOMEM [=y] && (ARC_PLAT_TB10X || COMPILE_TEST [=y])

OF_GPIO is not required for compile-testing and is already enabled
when the driver is usable, so just drop the 'select' line.

Fixes: 682fbb18e1 ("gpio: tb10x: allow building the module with COMPILE_TEST=y")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20251205095429.1291866-1-arnd@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
2025-12-06 11:48:19 +01:00
John Stultz
c2ae8b0df2 sched/core: Fix psi_dequeue() for Proxy Execution
Currently, if the sleep flag is set, psi_dequeue() doesn't
change any of the psi_flags.

This is because psi_task_switch() will clear TSK_ONCPU as well
as other potential flags (TSK_RUNNING), and the assumption is
that a voluntary sleep always consists of a task being dequeued
followed shortly there after with a psi_sched_switch() call.

Proxy Execution changes this expectation, as mutex-blocked tasks
that would normally sleep stay on the runqueue. But in the case
where the mutex-owning task goes to sleep, or the owner is on a
remote cpu, we will then deactivate the blocked task shortly
after.

In that situation, the mutex-blocked task will have had its
TSK_ONCPU cleared when it was switched off the cpu, but it will
stay TSK_RUNNING. Then if we later dequeue it (as currently done
if we hit a case find_proxy_task() can't yet handle, such as the
case of the owner being on another rq or a sleeping owner)
psi_dequeue() won't change any state (leaving it TSK_RUNNING),
as it incorrectly expects a psi_task_switch() call to
immediately follow.

Later on when the task get woken/re-enqueued, and psi_flags are
set for TSK_RUNNING, we hit an error as the task is already
TSK_RUNNING:

  psi: inconsistent task state! task=188:kworker/28:0 cpu=28 psi_flags=4 clear=0 set=4

To resolve this, extend the logic in psi_dequeue() so that
if the sleep flag is set, we also check if psi_flags have
TSK_ONCPU set (meaning the psi_task_switch is imminent) before
we do the shortcut return.

If TSK_ONCPU is not set, that means we've already switched away,
and this psi_dequeue call needs to clear the flags.

Fixes: be41bde4c3 ("sched: Add an initial sketch of the find_proxy_task() function")
Reported-by: K Prateek Nayak <kprateek.nayak@amd.com>
Signed-off-by: John Stultz <jstultz@google.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Tested-by: Haiyue Wang <haiyuewa@163.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Link: https://patch.msgid.link/20251205012721.756394-1-jstultz@google.com
Closes: https://lore.kernel.org/lkml/20251117185550.365156-1-kprateek.nayak@amd.com/
2025-12-06 10:13:16 +01:00
xupengbo
ca125231dd sched/fair: Fix unfairness caused by stalled tg_load_avg_contrib when the last task migrates out
When a task is migrated out, there is a probability that the tg->load_avg
value will become abnormal. The reason is as follows:

1. Due to the 1ms update period limitation in update_tg_load_avg(), there
   is a possibility that the reduced load_avg is not updated to tg->load_avg
   when a task migrates out.

2. Even though __update_blocked_fair() traverses the leaf_cfs_rq_list and
   calls update_tg_load_avg() for cfs_rqs that are not fully decayed, the key
   function cfs_rq_is_decayed() does not check whether
   cfs->tg_load_avg_contrib is null. Consequently, in some cases,
   __update_blocked_fair() removes cfs_rqs whose avg.load_avg has not been
   updated to tg->load_avg.

Add a check of cfs_rq->tg_load_avg_contrib in cfs_rq_is_decayed(),
which fixes the case (2.) mentioned above.

Fixes: 1528c661c2 ("sched/fair: Ratelimit update to tg->load_avg")
Signed-off-by: xupengbo <xupengbo@oppo.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Aaron Lu <ziqianlu@bytedance.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Tested-by: Aaron Lu <ziqianlu@bytedance.com>
Link: https://patch.msgid.link/20250827022208.14487-1-xupengbo@oppo.com
2025-12-06 10:03:13 +01:00
Sebastian Andrzej Siewior
22abd83277 sched/rt: Remove a preempt-disable section in rt_mutex_setprio()
rt_mutex_setprio() has only one caller: rt_mutex_adjust_prio(). It
expects that task_struct::pi_lock and rt_mutex_base::wait_lock are held.
Both locks are raw_spinlock_t and are acquired with disabled interrupts.

Nevertheless rt_mutex_setprio() disables preemption while invoking
__balance_callbacks() and raw_spin_rq_unlock(). Even if one of the
balance callbacks unlocks the rq then it must not enable interrupts
because rt_mutex_base::wait_lock is still locked.
Therefore interrupts should remain disabled and disabling preemption is
not needed.

Commit 4c9a4bc89a ("sched: Allow balance callbacks for check_class_changed()")
adds a preempt-disable section to rt_mutex_setprio() and
__sched_setscheduler(). In __sched_setscheduler() the preemption is
disabled before rq is unlocked and interrupts enabled but I don't see
why it makes a difference in rt_mutex_setprio().

Remove the preempt_disable() section from rt_mutex_setprio().

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://patch.msgid.link/20251127155529.t_sTatE4@linutronix.de
2025-12-06 10:03:13 +01:00
Peter Zijlstra
e38e529974 sched/hrtick: Fix hrtick() vs. scheduling context
The sched_class::task_tick() method is called on the donor
sched_class, and sched_tick() hands it rq->donor as argument,
which is consistent.

However, while hrtick() uses the donor sched_class, it then passes
rq->curr, which is inconsistent. Fix it.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: John Stultz <jstultz@google.com>
Link: https://patch.msgid.link/20250918080205.442967033@infradead.org
2025-12-06 10:03:13 +01:00