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It is not valid to call pm_runtime_set_suspended() for devices
with runtime PM enabled because it returns -EAGAIN if it is enabled
already and working. So, call pm_runtime_disable() before to fix it.
Fixes: 43b6bf406cd0 ("spi: imx: fix runtime pm support for !CONFIG_PM")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Link: https://patch.msgid.link/20240923040015.3009329-2-ruanjinjie@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The device at 0xffd90000 is named SRU, both in the datasheet and SoC
DTSI. Fix the typo in the bindings to avoid the false positive report:
sound@ffd90000: reg-names:0: 'sru' is not one of ['scu', 'ssi', 'adg']
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240926113241.24060-2-wsa+renesas@sang-engineering.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext fixes from Tejun Heo:
- When sched_ext is in bypass mode (e.g. while disabling the BPF
scheduler), it was using one DSQ to implement global FIFO scheduling
as all it has to do is guaranteeing reasonable forward progress.
On multi-socket machines, this can lead to live-lock conditions under
certain workloads. Fixed by splitting the queue used for FIFO
scheduling per NUMA node. This required several preparation patches.
- Hotplug tests on powerpc could reliably trigger deadlock while
enabling a BPF scheduler.
This was caused by cpu_hotplug_lock nesting inside scx_fork_rwsem and
then CPU hotplug path trying to fork a new thread while holding
cpu_hotplug_lock.
Fixed by restructuring locking in enable and disable paths so that
the two locks are not coupled. This required several preparation
patches which also fixed a couple other issues in the enable path.
- A build fix for !CONFIG_SMP
- Userspace tooling sync and updates
* tag 'sched_ext-for-6.12-rc1-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
sched_ext: Remove redundant p->nr_cpus_allowed checker
sched_ext: Decouple locks in scx_ops_enable()
sched_ext: Decouple locks in scx_ops_disable_workfn()
sched_ext: Add scx_cgroup_enabled to gate cgroup operations and fix scx_tg_online()
sched_ext: Enable scx_ops_init_task() separately
sched_ext: Fix SCX_TASK_INIT -> SCX_TASK_READY transitions in scx_ops_enable()
sched_ext: Initialize in bypass mode
sched_ext: Remove SCX_OPS_PREPPING
sched_ext: Relocate check_hotplug_seq() call in scx_ops_enable()
sched_ext: Use shorter slice while bypassing
sched_ext: Split the global DSQ per NUMA node
sched_ext: Relocate find_user_dsq()
sched_ext: Allow only user DSQs for scx_bpf_consume(), scx_bpf_dsq_nr_queued() and bpf_iter_scx_dsq_new()
scx_flatcg: Use a user DSQ for fallback instead of SCX_DSQ_GLOBAL
tools/sched_ext: Receive misc updates from SCX repo
sched_ext: Add __COMPAT helpers for features added during v6.12 devel cycle
sched_ext: Build fix for !CONFIG_SMP
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Like other Asus ExpertBook models the B2502CVA has its keybopard IRQ (1)
described as ActiveLow in the DSDT, which the kernel overrides to EdgeHigh
which breaks the keyboard.
Add the B2502CVA to the irq1_level_low_skip_override[] quirk table to fix
this.
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217760
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20240927141606.66826-4-hdegoede@redhat.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Like other Asus Vivobook models the X1704VAP has its keybopard IRQ (1)
described as ActiveLow in the DSDT, which the kernel overrides to EdgeHigh
which breaks the keyboard.
Add the X1704VAP to the irq1_level_low_skip_override[] quirk table to fix
this.
Reported-by: Lamome Julien <julien.lamome@wanadoo.fr>
Closes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1078696
Closes: https://lore.kernel.org/all/1226760b-4699-4529-bf57-6423938157a3@wanadoo.fr/
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20240927141606.66826-3-hdegoede@redhat.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Like other Asus Vivobooks, the Asus Vivobook Go E1404GA has a DSDT
describing IRQ 1 as ActiveLow, while the kernel overrides to Edge_High.
$ sudo dmesg | grep DMI:.*BIOS
[ 0.000000] DMI: ASUSTeK COMPUTER INC. Vivobook Go E1404GA_E1404GA/E1404GA, BIOS E1404GA.302 08/23/2023
$ sudo cp /sys/firmware/acpi/tables/DSDT dsdt.dat
$ iasl -d dsdt.dat
$ grep -A 30 PS2K dsdt.dsl | grep IRQ -A 1
IRQ (Level, ActiveLow, Exclusive, )
{1}
There already is an entry in the irq1_level_low_skip_override[] DMI match
table for the "E1404GAB", change this to match on "E1404GA" to cover
the E1404GA model as well (DMI_MATCH() does a substring match).
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219224
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20240927141606.66826-2-hdegoede@redhat.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Commit d2aaf1996504 ("ACPI: resource: Add DMI quirks for ASUS Vivobook
E1504GA and E1504GAB") does exactly what the subject says, adding DMI
matches for both the E1504GA and E1504GAB.
But DMI_MATCH() does a substring match, so checking for E1504GA will also
match E1504GAB.
Drop the unnecessary E1504GAB entry since that is covered already by
the E1504GA entry.
Fixes: d2aaf1996504 ("ACPI: resource: Add DMI quirks for ASUS Vivobook E1504GA and E1504GAB")
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20240927141606.66826-1-hdegoede@redhat.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fix from Masami Hiramatsu:
- uprobes: fix kernel info leak via "[uprobes]" vma
Fix uprobes not to expose the uninitialized page for trampoline
buffer to user space, which can leak kernel info.
* tag 'probes-fixes-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
uprobes: fix kernel info leak via "[uprobes]" vma
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
"afs:
- Fix setting of the server responding flag
- Remove unused struct afs_address_list and afs_put_address_list()
function
- Fix infinite loop because of unresponsive servers
- Ensure that afs_retry_request() function is correctly added to the
afs_req_ops netfs operations table
netfs:
- Fix netfs_folio tracepoint handling to handle NULL mappings
- Add a missing folio_queue API documentation
- Ensure that netfs_write_folio() correctly advances the iterator via
iov_iter_advance()
- Fix a dentry leak during concurrent cull and cookie lookup
operations in cachefiles
pidfs:
- Correctly handle accessing another task's pid namespace"
* tag 'vfs-6.12-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
netfs: Fix the netfs_folio tracepoint to handle NULL mapping
netfs: Add folio_queue API documentation
netfs: Advance iterator correctly rather than jumping it
afs: Fix the setting of the server responding flag
afs: Remove unused struct and function prototype
afs: Fix possible infinite loop with unresponsive servers
pidfs: check for valid pid namespace
afs: Fix missing wire-up of afs_retry_request()
cachefiles: fix dentry leak in cachefiles_open_file()
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The name of the "load_address" objects has been modified, but the
corresponding entry in the gitignore file must be updated.
Update the load_address entry in the gitignore file to account for
the new names, adding an exception to keep on tracking load_address.c.
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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This executable is missing from the corresponding gitignore file.
Add unshare_test to the core gitignore list.
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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The macro MAX_PID_NS_LEVEL is never referenced in the code, so remove it.
Signed-off-by: Ba Jing <bajing@cmss.chinamobile.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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__fatal_error routine doesn't check strerror_r() return value,
which results in the following compile time warning:
posix_timers.c: In function ‘__fatal_error’:
posix_timers.c:31:9: warning: ignoring return value of ‘strerror_r’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
31 | strerror_r(errno, buf, sizeof(buf));
Fix this by adding a check for return value and error handling appropriate
for the GNU-specific strerror_r() in use in __fatal_error(). Check if
return string is null and handle accordingly.
From Linux strerror_r() manual page:
"The GNU-specific strerror_r() returns a pointer to a string containing
the error message. This may be either a pointer to a string that the
function stores in buf, or a pointer to some (immutable) static string
(in which case buf is unused). If the function stores a string in buf,
then at most buflen bytes are stored (the string may be truncated if
buflen is too small and errnum is unknown). The string always includes
a terminating null byte."
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: John Stultz <jstultz@google.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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The rtctest requires the read permission on /dev/rtc0. The rtctest will
be skipped if the /dev/rtc0 is not readable.
Reviewed-by: Koba Ko <kobak@nvidia.com>
Reviewed-by: Matthew R. Ochs <mochs@nvidia.com>
Signed-off-by: Joseph Jang <jjang@nvidia.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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If the recv returns zero, or an error, then it doesn't matter if more
data has already been received for this buffer. A condition like that
should terminate the multishot receive. Rather than pass in the
collected return value, pass in whether to terminate or keep the recv
going separately.
Note that this isn't a bug right now, as the only way to get there is
via setting MSG_WAITALL with multishot receive. And if an application
does that, then -EINVAL is returned anyway. But it seems like an easy
bug to introduce, so let's make it a bit more explicit.
Link: https://github.com/axboe/liburing/issues/1246
Cc: stable@vger.kernel.org
Fixes: b3fdea6ecb55 ("io_uring: multishot recv")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Reorganize kerneldoc parameter names to match the parameter
order in the function header.
Problems identified using Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://patch.msgid.link/20240930112121.95324-5-Julia.Lawall@inria.fr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The headset push button cannot work properly in case of the ALC257.
This patch reverted the previous commit to correct the side effect.
Fixes: ef9718b3d54e ("ALSA: hda/realtek: Fix noise from speakers on Lenovo IdeaPad 3 15IAU7")
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Link: https://patch.msgid.link/20240930105039.3473266-1-oder_chiou@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Fix some typos in patch_conexant.c
Signed-off-by: Oldherl Oh <me@oldherl.one>
Link: https://patch.msgid.link/20240930084132.3373750-1-me@oldherl.one
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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This reverts commit 087913e0ba2b3b9d7ccbafb2acf5dab9e35ae1d5.
It turned out that the original code was correct since the rq can only
change when there is no armed job for an entity.
This change here broke the logic since we only incremented the counter
for the first job, so revert it.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240930131451.536150-1-christian.koenig@amd.com
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The SBDF of the target CXL 2.0 compliant root port is required to inject a CXL
protocol error as per ACPI 6.5. The SBDF given has to be in the
following format:
31 24 23 16 15 11 10 8 7 0
+-------------------------------------------------+
| segment | bus | device | function | reserved |
+-------------------------------------------------+
The SBDF calculated in cxl_dport_get_sbdf() doesn't account for
the reserved bits currently, causing the wrong SBDF to be used.
Fix said calculation to properly shift the SBDF.
Without this fix, error injection into CXL 2.0 root ports through the
CXL debugfs interface (<debugfs>/cxl) is broken. Injection
through the legacy interface (<debugfs>/apei/einj/) will still work
because the SBDF is manually provided by the user.
Fixes: 12fb28ea6b1cf ("EINJ: Add CXL error type support")
Signed-off-by: Ben Cheatham <Benjamin.Cheatham@amd.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Srinivasulu Thanneeru <sthanneeru.opensrc@micron.com>
Reviewed-by: Srinivasulu Thanneeru <sthanneeru.opensrc@micron.com>
Link: https://patch.msgid.link/20240927163428.366557-1-Benjamin.Cheatham@amd.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
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Fix the netfs_folio tracepoint to handle folios that have a NULL mapping
pointer. In such a case, just substitute a zero inode number.
Fixes: c38f4e96e605 ("netfs: Provide func to copy data to pagecache for buffered write")
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/2917423.1727697556@warthog.procyon.org.uk
cc: Jeff Layton <jlayton@kernel.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Add API documentation for folio_queue.
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/2912369.1727691281@warthog.procyon.org.uk
cc: Jeff Layton <jlayton@kernel.org>
cc: netfs@lists.linux.dev
cc: linux-doc@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
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On a few platforms such as TI's AM69 device, disable_irq() fails to keep
track of the interrupts that happen between disable_irq() and
enable_irq() and those interrupts are missed. Use the ->irq_unmask() and
->irq_mask() methods instead of ->irq_enable() and ->irq_disable() to
correctly keep track of edges when disable_irq is called.
This solves the issue of disable_irq() not working as expected on such
platforms.
Fixes: 23265442b02b ("ARM: davinci: irq_data conversion.")
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Parth Pancholi <parth.pancholi@toradex.com>
Acked-by: Keerthy <j-keerthy@ti.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240828133207.493961-1-parth105105@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Since commit f79dc03fe68c ("kconfig: refactor choice value calculation"),
Kconfig for ARCH=powerpc may result in an infinite loop. This occurs
because there are two entries for POWERPC64_CPU in a choice block.
If the same symbol appears twice in a choice block, the ->choice_link
node is added twice to ->choice_members, resulting a corrupted linked
list.
A simple test case is:
choice
prompt "choice"
config A
bool "A"
config B
bool "B 1"
config B
bool "B 2"
endchoice
Running 'make defconfig' results in an infinite loop.
One solution is to replace the current two entries:
config POWERPC64_CPU
bool "Generic (POWER5 and PowerPC 970 and above)"
depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
select PPC_64S_HASH_MMU
config POWERPC64_CPU
bool "Generic (POWER8 and above)"
depends on PPC_BOOK3S_64 && CPU_LITTLE_ENDIAN
select ARCH_HAS_FAST_MULTIPLIER
select PPC_64S_HASH_MMU
select PPC_HAS_LBARX_LHARX
with the following single entry:
config POWERPC64_CPU
bool "Generic 64 bit powerpc"
depends on PPC_BOOK3S_64
select ARCH_HAS_FAST_MULTIPLIER if CPU_LITTLE_ENDIAN
select PPC_64S_HASH_MMU
select PPC_HAS_LBARX_LHARX if CPU_LITTLE_ENDIAN
In my opinion, the latter looks cleaner, but PowerPC maintainers may
prefer to display different prompts depending on CPU_LITTLE_ENDIAN.
For now, this commit fixes the issue in Kconfig, restoring the original
behavior. I will reconsider whether such a use case is worth supporting.
Fixes: f79dc03fe68c ("kconfig: refactor choice value calculation")
Reported-by: Marco Bonelli <marco@mebeim.net>
Closes: https://lore.kernel.org/all/1763151587.3581913.1727224126288@privateemail.com/
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Commit aab94339cd85 ("of: Add support for linking device tree blobs
into vmlinux") introduced a mechanism to embed DTBs into vmlinux.
Initially, it was used for wrapping boot DTBs in arch/*/boot/dts/, but
it is now reused for more generic purposes, such as testing.
Built-in DTBs are discarded because KERNEL_DTB() is part of INIT_DATA,
as defined in include/asm-generic/vmlinux.lds.h.
This has not been an issue so far because OF unittests are triggered
during boot, as defined by late_initcall(of_unittest).
However, the recent clk KUnit test additions have caused problems
because KUnit can execute test suites after boot.
For example:
# echo > /sys/kernel/debug/kunit/clk_register_clk_parent_data_device/run
This command triggers a stack trace because built-in DTBs have already
been freed.
While it is possible to move such test suites from kunit_test_suites to
kunit_test_init_section_suites, it would be preferable to avoid usage
limitations.
This commit moves non-boot built-in DTBs to the .rodata section. Since
these generic DTBs are looked up by name, they do not need to be placed
in the special .dtb.init.rodata section.
Boot DTBs should remain in .dtb.init.rodata because the arch boot code
generally does not know the DT name, thus it uses the __dtb_start symbol
to locate it.
This separation also ensures that the __dtb_start symbol references the
boot DTB. Currently, the .dtb.init.rodata is a mixture of both boot and
non-boot DTBs. The __dtb_start symbol must be followed by the boot DTB,
but we currently rely on the link order (i.e., the order in Makefiles),
which is very fragile.
The implementation is kind of cheesy; the section is .dtb.init.rodata
when $(obj) starts with arch/$(SRCARCH)/boot/dts, and .rodata section
otherwise. This will be refactored later.
Fixes: 5c9dd72d8385 ("of: Add a KUnit test for overlays and test managed APIs")
Fixes: 5776526beb95 ("clk: Add KUnit tests for clk fixed rate basic type")
Fixes: 274aff8711b2 ("clk: Add KUnit tests for clks registered with struct clk_parent_data")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
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For gettimeofday, -ffixed-r30 was passed to work around a bug in Go
code, where the vDSO trampoline forgot to save and restore this register
across function calls. But Go requires a different trampoline for every
call, and there's no reason that new Go code needs to be broken and add
more bugs. So remove -ffixed-r30 for getrandom.
Fixes: 8072b39c3a75 ("powerpc/vdso: Wire up getrandom() vDSO implementation on VDSO64")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240925175021.1526936-2-Jason@zx2c4.com
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"assigned" and "assigned->name" are allocated in snd_mixer_oss_proc_write()
using kmalloc() and kstrdup(), so there is no point in using kfree_const()
to free these resources.
Switch to the more standard kfree() to free these resources.
This could avoid a memory leak.
Fixes: 454f5ec1d2b7 ("ALSA: mixer: oss: Constify snd_mixer_oss_assign_table definition")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/63ac20f64234b7c9ea87a7fa9baf41e8255852f7.1727374631.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The headset mic requires a fixup to be properly detected/used.
Signed-off-by: Ai Chao <aichao@kylinos.cn>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20240926060252.25630-1-aichao@kylinos.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Audio control requests that sets sampling frequency sometimes fail on
this card. Adding delay between control messages eliminates that problem.
Signed-off-by: Lianqin Hu <hulianqin@vivo.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/TYUPR06MB62177E629E9DEF2401333BF7D2692@TYUPR06MB6217.apcprd06.prod.outlook.com
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This patch fixes typos in comments within the ALSA subsystem.
These changes improve code readability without affecting
functionality.
Signed-off-by: Yu Jiaoliang <yujiaoliang@vivo.com>
Link: https://patch.msgid.link/20240924041749.3125507-1-yujiaoliang@vivo.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Currently, if alsa development package is not installed on the user's
system then the make command would print a `pagefull` of errors. In
particular one error message is repeated 3 times. This error is returned
by `pkg-config` and since it is not being handeled appropriately,
repeated calls to `pkg-config` prints the same message again.
This patch adds check for alsa package installation. If alsa is not
installed, a short and consize error is returned. Also, it does not
affect the compilation of other tests.
Signed-off-by: Abdul Rahim <abdul.rahim@myyahoo.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://patch.msgid.link/20240922225824.18918-1-abdul.rahim@myyahoo.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Builds on big endian systems fail as follows.
fs/bcachefs/bkey.h: In function 'bch2_bkey_format_add_key':
fs/bcachefs/bkey.h:557:41: error:
'const struct bkey' has no member named 'bversion'
The original commit only renamed the variable for little endian builds.
Rename it for big endian builds as well to fix the problem.
Fixes: cf49f8a8c277 ("bcachefs: rename version -> bversion")
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Cloning a descriptor table picks the size that would cover all currently
opened files. That's fine for clone() and unshare(), but for close_range()
there's an additional twist - we clone before we close, and it would be
a shame to have
close_range(3, ~0U, CLOSE_RANGE_UNSHARE)
leave us with a huge descriptor table when we are not going to keep
anything past stderr, just because some large file descriptor used to
be open before our call has taken it out.
Unfortunately, it had been dealt with in an inherently racy way -
sane_fdtable_size() gets a "don't copy anything past that" argument
(passed via unshare_fd() and dup_fd()), close_range() decides how much
should be trimmed and passes that to unshare_fd().
The problem is, a range that used to extend to the end of descriptor
table back when close_range() had looked at it might very well have stuff
grown after it by the time dup_fd() has allocated a new files_struct
and started to figure out the capacity of fdtable to be attached to that.
That leads to interesting pathological cases; at the very least it's a
QoI issue, since unshare(CLONE_FILES) is atomic in a sense that it takes
a snapshot of descriptor table one might have observed at some point.
Since CLOSE_RANGE_UNSHARE close_range() is supposed to be a combination
of unshare(CLONE_FILES) with plain close_range(), ending up with a
weird state that would never occur with unshare(2) is confusing, to put
it mildly.
It's not hard to get rid of - all it takes is passing both ends of the
range down to sane_fdtable_size(). There we are under ->files_lock,
so the race is trivially avoided.
So we do the following:
* switch close_files() from calling unshare_fd() to calling
dup_fd().
* undo the calling convention change done to unshare_fd() in
60997c3d45d9 "close_range: add CLOSE_RANGE_UNSHARE"
* introduce struct fd_range, pass a pointer to that to dup_fd()
and sane_fdtable_size() instead of "trim everything past that point"
they are currently getting. NULL means "we are not going to be punching
any holes"; NR_OPEN_MAX is gone.
* make sane_fdtable_size() use find_last_bit() instead of
open-coding it; it's easier to follow that way.
* while we are at it, have dup_fd() report errors by returning
ERR_PTR(), no need to use a separate int *errorp argument.
Fixes: 60997c3d45d9 "close_range: add CLOSE_RANGE_UNSHARE"
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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xol_add_vma() maps the uninitialized page allocated by __create_xol_area()
into userspace. On some architectures (x86) this memory is readable even
without VM_READ, VM_EXEC results in the same pgprot_t as VM_EXEC|VM_READ,
although this doesn't really matter, debugger can read this memory anyway.
Link: https://lore.kernel.org/all/20240929162047.GA12611@redhat.com/
Reported-by: Will Deacon <will@kernel.org>
Fixes: d4b3b6384f98 ("uprobes/core: Allocate XOL slots for uprobes use")
Cc: stable@vger.kernel.org
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
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There is a spelling mistake in a dev_err message. Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://patch.msgid.link/20240923120325.836918-1-colin.i.king@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Convert the RT5640/RT5639 audio CODEC bindings to DT schema.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240911-topic-amlogic-arm32-upstream-bindings-fixes-covert-realtek-rt5640-v1-1-6b3745e34540@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Several of the NXP drivers use regmaps with a rbtree register cache. Since
the maple tree cache is using a generally more modern data structure which
makes implementation choices more suitable for modern systems let's convert
these drivers to it. This should have no practical impact.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20240924-asoc-imx-maple-v1-1-8b993901f71e@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Link: https://patch.msgid.link/6a6c87d3-9e4f-4980-ae06-b0d5e16dd0c0@web.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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The bcm2835 I2S driver uses a rbtree register cache but has no clear need
to do so. Since the maple tree cache uses a more modern data structure and
makes implementation decisions more suitable for current systems switch the
driver to use that instead. No functional changes.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20240924-asoc-bcm-maple-v1-1-9d221f4a0195@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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This patch removes many lines of the patch code and
reads the patch code from firmware files.
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://patch.msgid.link/20240914090521.2224276-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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i.MX8QM's esai require power-domains property. Keep the same restriction
for other compatible string.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240927205618.4093591-1-Frank.Li@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is a spelling mistake in a dev_err message. Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://patch.msgid.link/20240923120723.837196-1-colin.i.king@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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In these functions, the variable 'rc' is redundant,
thus remove it.
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Link: https://patch.msgid.link/20240914072352.2997-1-tangbin@cmss.chinamobile.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The axg TDM HW does not depend on a selected set of rates.
The hardware itself, just takes an input clock and work with it, regardless
of its rate. In this way, the rates TDM can take are continuous.
What might force the use of specific rate are the PLL available as clock
and/or the codecs facing the TDM HW. Either way, this constraint does not
belong in the TDM interface driver.
Allow any rate as far as TDM is concerned by setting
SNDRV_PCM_RATE_CONTINUOUS with an interval it has been tested with.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://patch.msgid.link/20240920-asoc-axg-iface-continuous-v1-1-6075d7db0e61@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use standard dev_dbg API because it gives better debugging
information and allows dynamic control of prints.
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://patch.msgid.link/20240926090252.106040-1-daniel.baluta@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Declare `snd_soc_component_driver` as const to move it to a read-only
section for the drivers that do not modify the struct after its
declaration.
The affected drivers only pass this struct to
`devm_snd_soc_register_component()`, whose argument is const and
therefore does not modify the content of the struct.
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://patch.msgid.link/20240729-const_snd_soc_component_driver-v2-2-1994f44f1ec2@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Remove 'platform' variable from acp platform driver private data
structure. For platform differentiation, ACP pci revision id being
used through out the code. As platform variable is no longer used in
code, drop the code corresponding to 'platform' variable.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20240924061821.1127054-10-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Replace adata->platform condition check with acp pci revision id
variable in config_acp_dma() & acp70_i2s_master_clock_generate()
functions.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20240924061821.1127054-9-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Remove unused 'platform' variable from acp_card_drvdata structure.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20240924061821.1127054-8-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Update mach_params subsystem_rev field in acp_machine_select()
function with acp pci revision id value.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20240924061821.1127054-7-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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