men_z135_probe() allocates a receive staging buffer filled by the
CPU via memcpy_fromio() from the device MMIO region.
This buffer can be allocated with kmalloc() as there's nothing special
about it to go directly to the page allocator.
kmalloc() provides a better API that does not require ugly casts and
kfree() does not need to know the size of the freed object.
Replace use of __get_free_page() with kmalloc() and free_page() with
kfree().
Link: https://lore.kernel.org/all/635405e4-9423-4a25-a6e7-e03c8ea0bcbe@redhat.com
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Link: https://patch.msgid.link/20260528-b4-tty-v1-3-9da9f7aec5f2@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
rs_startup() allocates a transmit ring buffer that is used to buffer reads
and writes from/to serial data register.
This buffer can be allocated with kmalloc() as there's nothing special
about it to go directly to the page allocator.
kmalloc() provides a better API that does not require ugly casts and
kfree() does not need to know the size of the freed object.
Replace use of get_zeroed_page() with kzalloc() and free_page() with
kfree().
Link: https://lore.kernel.org/all/635405e4-9423-4a25-a6e7-e03c8ea0bcbe@redhat.com
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Link: https://patch.msgid.link/20260528-b4-tty-v1-2-9da9f7aec5f2@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pch_uart_init_port() allocates a staging buffer for non-DMA receive path
using __get_free_page().
This buffer can be allocated with kmalloc() as there's nothing special
about it to go directly to the page allocator.
kmalloc() provides a better API that does not require ugly casts and
kfree() does not need to know the size of the freed object.
Replace use of __get_free_page() with kmalloc() and free_page() with
kfree().
Link: https://lore.kernel.org/all/635405e4-9423-4a25-a6e7-e03c8ea0bcbe@redhat.com
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Link: https://patch.msgid.link/20260528-b4-tty-v1-1-9da9f7aec5f2@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use kvmalloc_objs instead of kvmalloc_array when initializing
exec->objects in drm_exec_init.
Concern caught by static analysis.
Signed-off-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Cc: Rob Clark <robdclark@chromium.org>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patch.msgid.link/20260701172458.1416930-1-jonathan.cavitt@intel.com
Some multi GPU systems may have a VGA compatible device, but that might not be
used for display. If due to enumeration order this device is found before the
one actually used for display then multiple devices may show the boot_display
attribute, confusing userspace.
When screen info is valid, use it exclusively to find the primary device so
that only the device backing the framebuffer is reported. Only when no
framebuffer has been set up does it make sense to fall back to the default VGA
device. This ensures at most one primary graphics device, preferably the one
with the framebuffer.
Fixes: ad90860bd1 ("fbcon: Use screen info to find primary device")
Closes: https://lore.kernel.org/linux-pci/20260618081803.2790848-1-aaron.ma@canonical.com/#t
Reported-by: Aaron Ma <aaron.ma@canonical.com>
Suggested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Aaron Ma <aaron.ma@canonical.com>
Cc: <stable@kernel.org>
Link: https://patch.msgid.link/20260623141505.1816786-1-mario.limonciello@amd.com
Tracepoints require that RCU is watching. To prevent them from being used
in places that RCU is not watching, the trace_##event() macro always
calls rcu_is_watching() even when the event is not enabled and warns if
RCU is not watching. This is to make sure a warning is triggered even if
the tracepoint is never enabled (as it is only a bug when it is).
It was noticed that tracepoints could be hidden within
trace_#event#_enabled() calls, which are used to do extra work for the
tracepoint only if the tracepoint is enabled. But this also can hide the
fact that a tracepoint is placed in a location that can be called when RCU
is not watching.
Commit 9764e731ef ("tracepoint: Add lockdep rcu_is_watching() check to
trace_##name##_enabled()") added a check to the trace_##event##_enabled()
macro to make sure RCU is watching when it is called to make sure not to
hide the bug of a tracepoint being called when RCU is not watching.
There is one case in the irq_disable tracepoint where it is within a
trace_irq_disable_enabled() block, but it checks if RCU is watching, and
if it isn't, it makes a call to ct_irq_enter() that makes RCU watch again.
But because trace_irq_disable_enabled() now checks if RCU is watching and
will trigger if it isn't. This is a false warning as the code within
the block handles this case.
Add a new internal macro __trace_##event##_enabled() that doesn't check if
RCU is watching, and convert the irq_enable/disable tracepoints over to
it.
Link: https://patch.msgid.link/20260701132744.6a7fc68b@robin
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Closes: https://lore.kernel.org/all/CAMuHMdXud_RpWag_hFqa2ByBGRxg6KnxGL1ObCWZrpTsk3TfAw@mail.gmail.com/
Fixes: 9764e731ef ("tracepoint: Add lockdep rcu_is_watching() check to trace_##name##_enabled()")
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
String event fields are not necessarily NUL-terminated, so the filter
predicate functions (filter_pred_string(), filter_pred_strloc() and
filter_pred_strrelloc()) pass the field length to the regex match
callbacks, and the length-aware matchers honour it.
regex_match_glob() was the exception: it ignored the length and called
glob_match(), which scans the string until it hits a NUL byte. Some
string fields are not NUL-terminated. One example is the dynamic char
array of the xfs_* namespace tracepoints, which is copied without a
trailing NUL. For such a field, glob matching reads past the end of
the event field, causing a KASAN slab-out-of-bounds read in
glob_match(), reached via regex_match_glob() and filter_match_preds()
from the xfs_lookup tracepoint.
Add a length-bounded glob_match_len() and use it from regex_match_glob()
so glob matching always stops at the field boundary. The matching loop
is factored into a shared helper so glob_match() keeps its behaviour.
Fixes: 60f1d5e3ba ("ftrace: Support full glob matching")
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/da1aaf125fc3b63320b0c540fd6afa7c3d5b4f1a.1782836943.git.hhhuang@smu.edu.sg
Reported-by: Yuan Tan <yuantan098@gmail.com>
Reported-by: Yifan Wu <yifanwucs@gmail.com>
Reported-by: Juefei Pu <tomapufckgml@gmail.com>
Reported-by: Zhengchuan Liang <zcliangcn@gmail.com>
Reported-by: Xin Liu <bird@lzu.edu.cn>
Assisted-by: Codex:GPT-5.4
Signed-off-by: Huihui Huang <hhhuang@smu.edu.sg>
Signed-off-by: Ren Wei <n05ec@lzu.edu.cn>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The trace events in drivers/ufs/core/ufs_trace.h were converted to take a
pointer to the hba structure as an argument for the tracepoint and then in
TP_printk() the printing of the dev_name from the ring buffer was
converted to using the dev dereferenced pointer from the hba saved
pointer.
This is not allowed as the TP_printk() is executed at the time the trace
event is read from /sys/kernel/tracing/trace file. That can happen
literally, seconds, minutes, hours, weeks, days, or even months later!
There is no guarantee that the hba pointer will still exist by the time it
is dereferenced when the "trace" file is read.
Instead, save the device name from the hba pointer at the time the
tracepoint is called and place it into the ring buffer event. Then the
TP_printk() can read the name directly from the ring buffer and remove the
possibility that it will read a freed pointer and crash the kernel.
This was detected when testing the trace event code that looks for
TP_printk() parameters doing illegal derferences[1]
[1] https://lore.kernel.org/all/20260630184836.74d477b6@gandalf.local.home/
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260630185412.283c26c5@gandalf.local.home
Fixes: 583e518e71 ("scsi: ufs: core: Add hba parameter to trace events")
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
func_set_flag() dereferences tr->current_trace_flags before verifying
that the current tracer is actually the function tracer. When the active
tracer has been switched away from "function" (e.g., to "wakeup_rt"),
tr->current_trace_flags can be NULL, leading to a NULL pointer
dereference and kernel crash.
The call chain that triggers this is:
trace_options_write()
-> __set_tracer_option()
-> trace->set_flag() /* func_set_flag */
In func_set_flag(), the first operation is:
if (!!set == !!(tr->current_trace_flags->val & bit))
This dereferences tr->current_trace_flags unconditionally. The safety
check that guards against a non-function tracer:
if (tr->current_trace != &function_trace)
return 0;
is placed *after* the dereference, which is too late.
This was observed with the following crash dump:
BUG: unable to handle page fault at 0000000000000000
RIP: func_set_flag+0xd
Call Trace:
__set_tracer_option+0x27
trace_options_write+0x75
vfs_write+0x12a
ksys_write+0x66
do_syscall_64+0x5b
RIP: ffffffff914c973d RSP: ff67ec88b01dfdf0 RFLAGS: 00010202
RAX: 0000000000000000 RBX: ff3a826e80354580 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffffff93918080
The disassembly confirms the fault:
func_set_flag+0: mov 0x1f08(%rdi), %rax ; RAX = tr->current_trace_flags = NULL
func_set_flag+13: mov (%rax), %eax ; page fault: dereference NULL
At the time of the crash:
tr->current_trace_flags = 0x0 (NULL)
tr->current_trace = wakeup_rt_tracer (not function_trace)
The scenario is that a process opens a function tracer option file (such
as "func_stack_trace"), then the current tracer is switched to another
tracer (e.g., "wakeup_rt"), which sets current_trace_flags to NULL. When
the process subsequently writes to the option file, func_set_flag() is
invoked and crashes on the NULL dereference.
Fix this by moving the current_trace check before the
current_trace_flags dereference, so that func_set_flag() returns early
when the function tracer is not active.
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260624061715.1445655-1-xiangzao@linux.alibaba.com
Fixes: 76680d0d28 ("tracing: Have function tracer define options per instance")
Signed-off-by: Yuanhe Shu <xiangzao@linux.alibaba.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The tracepoint_printk symbol is not exported, so make it
static to remove the following sparse warning:
kernel/trace/trace.c:90:5: warning: symbol 'tracepoint_printk' was not declared. Should it be static?
Fixes: dd293df639 ("tracing: Move trace sysctls into trace.c")
Link: https://patch.msgid.link/20260617105822.904164-1-ben.dooks@codethink.co.uk
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Intel HD Audio defines Coefficient Index and Processing Coefficient as
separate audio widget controls in the Audio Widget Verb Definitions:
Coefficient Index selects the coefficient slot, while Processing
Coefficient accesses the value at the selected slot.
hda_reg_read_coef() selects the slot with AC_VERB_SET_COEF_INDEX, but
then uses AC_VERB_GET_COEF_INDEX for the value read. That reads back the
selected index instead of the coefficient value. hda_reg_write_coef()
has the same issue and builds the value write from AC_VERB_GET_COEF_INDEX
instead of AC_VERB_SET_PROC_COEF.
This only affects the regmap coefficient cache path used by codecs that
set codec->cache_coef. Direct coefficient helpers already use the normal
SET_COEF_INDEX followed by GET_PROC_COEF or SET_PROC_COEF sequence, which
is likely why this has not been noticed widely.
Use AC_VERB_GET_PROC_COEF for cached coefficient reads and
AC_VERB_SET_PROC_COEF for cached coefficient writes.
Fixes: 40ba66a702 ("ALSA: hda - Add cache support for COEF read/write")
Cc: stable@vger.kernel.org
Signed-off-by: Xu Rao <raoxu@uniontech.com>
Link: https://patch.msgid.link/DB9023BF2920BA99+20260707132419.1731342-1-raoxu@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Commit 8928e4a3be ("ring-buffer: Show persistent buffer dropped events
in trace_pipe file") split the "commit" variable in
ring_buffer_read_page() into "commit" (raw) and "size" (masked page
size), but the inner copy loop's terminator was changed to compare rpos
against "event_size" instead of "size".
rpos is the cumulative read offset within the page; event_size is the
length of the single event just copied. The loop thus breaks after the
first event, so only one event is copied per call. This regresses the
per-event memcpy path (partial reads, the active commit page, and
mapped/remote buffers) used by splice/trace_pipe_raw and mmap consumers
into a one-event-at-a-time read.
Compare rpos against the page size as the original code did.
Link: https://patch.msgid.link/20260616175538.111628-1-devnexen@gmail.com
Fixes: 8928e4a3be ("ring-buffer: Show persistent buffer dropped events in trace_pipe file")
Signed-off-by: David Carlier <devnexen@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Use ARRAY_SIZE(snd_minors) instead of SNDRV_OS_MINORS directly, for
consistency with snd_find_free_minor() and snd_unregister_device() in
the same file. No functional change.
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Link: https://patch.msgid.link/20260707074556.569451-1-phucduc.bui@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The condition
if (count && size < count)
can never evaluate to true.
The VIA DMA count register is masked with 0x00ffffff before use, while
the DMA buffer size is limited to 0x00fffffe bytes. As a result, 'count'
can never exceed 'size', making the condition permanently false.
This branch has therefore been unreachable since the driver was
introduced. Remove the unreachable branch without changing runtime
behavior.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Evgenii Burenchev <evg28bur@yandex.ru>
Link: https://patch.msgid.link/20260706131638.15311-1-evg28bur@yandex.ru
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The ALSA FireWire driver headers include <linux/firewire.h>, which
already provides struct ieee1394_device_id via
<linux/device-id/ieee1394.h>.
Drop the now-redundant direct <linux/mod_devicetable.h> includes
from the per-device headers.
Signed-off-by: Longlong Xia <xialonglong2025@163.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260706032639.273929-1-xialonglong2025@163.com
Add driver for the Qualcomm interconnect buses found in Maili
based platforms. The topology consists of several NoCs that are
controlled by a remote processor that collects the aggregated
bandwidth for each master-slave pairs.
Co-developed-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com>
Signed-off-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com>
Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20260622-maili_icc-v2-2-18b5ac08c04f@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
The ASUS ROG Ally X (RC72LA, PCI SSID 0x1043:0x1eb3) leaves the combo
jack microphone pin (0x19) unconfigured, so a headset microphone is
neither detected nor captured. Only the internal microphone is
available.
Add a pin override that configures node 0x19 as an external headset
mic, the same way the original ROG Ally does. The headphone output
fixup chain is preserved, so speaker and headphone routing are
unchanged.
Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Link: https://patch.msgid.link/20260707005615.52889-2-matthew.schwartz@linux.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The ASUS ROG Ally X (RC72LA, PCI SSID 0x1043:0x1eb3) with an ALC294
codec produces no sound from the headphone jack, and unplugging the
headphones can leave the speakers muted too.
The device uses ALC287_FIXUP_TAS2781_I2C, which chains into the
ThinkPad fixup chain. alc285_fixup_thinkpad_x1_gen7() makes the
headphone (pin 0x21) and speaker (pin 0x17) share DAC 0x03. That is
correct for a ThinkPad, but here the shared DAC is exposed as a
"Line Out" control that defaults to zero, so the headphones stay
silent when plugged in.
Add a dedicated fixup chain for the Ally X that sets up the TAS2781
amplifier and the headset jack without the ThinkPad DAC sharing, and
routes the speaker to DAC 0x02 so the headphone and speaker get
independent DACs.
Also, fixup the wrong product code (it's RC72LA, not RCLA72).
Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Link: https://patch.msgid.link/20260707005615.52889-1-matthew.schwartz@linux.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The current error handling in snd_hdac_bus_alloc_stream_pages()
returns directly on failure without cleaning up already allocated
resources. While callers are supposed to release those via
snd_hdac_bus_free_stream_pages() at destructor, adding explicit
cleanup makes the function more self-contained and safer against
future misuse.
Add proper error cleanup path using goto labels to free previously
allocated BDL DMA buffers, position buffer, and ring buffer in
reverse allocation order.
Signed-off-by: Zhao Dongdong <zhaodongdong@kylinos.cn>
Link: https://patch.msgid.link/tencent_8E5BBBD19D53B1EFCDB6E89F3B6246A70B06@qq.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Add Epoch Subsystem (EPSS) L3 interconnect provider support on
Qualcomm Shikra SoC.
The EPSS L3 block on Shikra SoC is similar to existing Qualcomm EPSS/OSM
L3 providers, but supports only up to 12 frequency lookup table entries.
Reading beyond the supported LUT entries can expose incorrect frequencies.
Add shikra-specific EPSS descriptor shikra_epss_l3_perf_state that reuses
existing EPSS configuration with appropriate LUT entries limit.
Co-developed-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com>
Signed-off-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@oss.qualcomm.com>
Link: https://patch.msgid.link/20260603-shikra_epss_l3-v3-2-3c2e0b796e78@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add a missing blank line between SND_SOC_SOF_AMD_ACP70 and
SND_SOC_SOF_AMD_ACP7X config entries to conform to Kconfig formatting
convention.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20260707060918.2535962-1-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Document the EPSS L3 interconnect provider binding for Qualcomm
Shikra SoC.
The Shikra EPSS L3 block is similar to existing Qualcomm EPSS/OSM L3
providers, but supports only up to 12 frequency lookup table entries.
Co-developed-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com>
Signed-off-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com>
Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260603-shikra_epss_l3-v3-1-3c2e0b796e78@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Use the descriptor's `ep_mem_offset` to calculate the start of the endpoint
memory access array and to comply with the FF-A spec instead of defaulting
to `sizeof(struct ffa_mem_region)`.
This requires moving `ffa_mem_region_additional_setup()` earlier in the setup
flow.
Also, add sanity checks to ensure the calculated descriptor offsets do not
exceed `max_fragsize`.
Fixes: 113580530e ("firmware: arm_ffa: Update memory descriptor to support v1.1 format")
Reviewed-by: Sudeep Holla <sudeep.holla@kernel.org>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Sebastian Ene <sebastianene@google.com>
Link: https://patch.msgid.link/20260702103848.1647249-3-sebastianene@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
Sashiko (locally) reports multiple out-of-bound issues in
ffa_setup_and_transmit:
1) Writing ep_mem_access->reserved can write out of bounds for FFA
versions < 1.2 as ffa_emad_size_get() returns 16 bytes in that case
while reserved has an offset of 24.
Instead of zeroing fields, memset the struct to zero first based on
the FFA version.
2) Make sure there is enough size to write constituents.
While at it, convert the only sizeof() in the driver that uses a
type instead of variable.
Reviewed-by: Sudeep Holla <sudeep.holla@kernel.org>
Fixes: 111a833dc5 ("firmware: arm_ffa: Set reserved/MBZ fields to zero in the memory descriptors")
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Sebastian Ene <sebastianene@google.com>
Link: https://patch.msgid.link/20260702103848.1647249-2-sebastianene@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
Compiling RTLA 7.1.x with GCC 16 and uClibc as standard library fails
with these errors:
src/common.c: In function ‘set_signals’:
src/common.c:40:17: error: implicit declaration of function ‘alarm’ [-Wimplicit-function-declaration]
40 | alarm(params->duration);
| ^~~~~
src/common.c: In function ‘common_apply_config’:
src/common.c:187:44: error: implicit declaration of function ‘getpid’; did you mean ‘getpt’? [-Wimplicit-function-declaration]
187 | retval = sched_setaffinity(getpid(), sizeof(params->hk_cpu_set),
| ^~~~~~
| getpt
In file included from src/common.c:9:
src/common.c: In function ‘run_tool’:
src/common.c:262:19: error: implicit declaration of function ‘sysconf’; did you mean ‘sscanf’? [-Wimplicit-function-declaration]
262 | nr_cpus = get_nprocs_conf();
| ^~~~~~~~~~~~~~~
src/common.c:262:19: error: ‘_SC_NPROCESSORS_CONF’ undeclared (first use in this function)
262 | nr_cpus = get_nprocs_conf();
| ^~~~~~~~~~~~~~~
src/common.c:262:19: note: each undeclared identifier is reported only once for each function it appears in
src/common.c:370:17: error: implicit declaration of function ‘sleep’ [-Wimplicit-function-declaration]
370 | sleep(1);
| ^~~~~
Restore the missing unistd.h include.
Fixes: 115b06a008 ("tools/rtla: Consolidate nr_cpus usage across all tools")
Signed-off-by: Andreas Ziegler <br025@umbiko.net>
Link: https://lore.kernel.org/r/20260624033342.129970-1-br025@umbiko.net
[ capital letter in patch subject, remove EOL after Fixes ]
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
This series enables QoS configuration for QNOC type device which
can be found on X1E80100 platform. It enables QoS configuration
for master ports with predefined priority and urgency forwarding.
This helps in prioritizing the traffic originating from different
interconnect masters at NOC (Network On Chip).
The system may function normally without this feature. However,
enabling QoS helps optimize latency and bandwidth across subsystems
like CPU, GPU, and multimedia engines, which becomes important in
high-throughput scenarios. This is a feature aimed at performance
enhancement to improve system performance under concurrent workloads.
* icc-x1e80100
dt-bindings: interconnect: qcom,x1e80100-rpmh: add clocks property to enable QoS
interconnect: qcom: x1e80100: enable QoS configuration
Link: https://patch.msgid.link/20260527-x1e80100_qos-v2-0-305c6539e6d2@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Some interconnect nodes on X1E80100 have QoS registers located inside
a block whose interface is clock-gated. For those nodes, driver
must enable the corresponding clock(s) before accessing the
registers. Add the 'clocks' property so the driver can obtain
and enable the required clock(s).
Only interconnects that have clock-gated QoS register interface
use this property; it is not applicable to all interconnect nodes.
Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260527-x1e80100_qos-v2-1-305c6539e6d2@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Stanislav Fomichev says:
====================
net: hold instance lock around NETDEV_DOWN and NETDEV_GOING_DOWN
NETDEV_UP and NETDEV_REGISTER already run under the per-device
instance lock. The teardown side does not. Make it symmetric so
ops-locked drivers can rely on the lock being held in both
directions.
====================
Link: https://patch.msgid.link/20260702224150.3730033-1-sdf@fomichev.me
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The lock-state table marks UNREGISTER as unlocked without saying
why. Add a short note that many handlers release the lowers via
dev_close().
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260702224150.3730033-7-sdf@fomichev.me
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Sprinkle a few asserts about ops lock: netif_close_many and __dev_notify_flags
should now consistently run under the lock
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260702224150.3730033-6-sdf@fomichev.me
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
rtnl_configure_link calls __dev_change_flags() and __dev_notify_flags,
both need the instance lock. rtnl_newlink_create grabs it but stacked
devices do not. Move the lock inside rtnl_configure_link.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260702224150.3730033-5-sdf@fomichev.me
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
netif_close_many will soon assert ops lock (for locked DOWN/GOING_DOWN).
Update mtk_eth_set_dma_device to manually grab and release the ops lock.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260702224150.3730033-4-sdf@fomichev.me
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
netif_close_many will soon assert ops lock (for locked DOWN/GOING_DOWN).
Update dsa_switch_shutdown to manually grab and release the ops lock.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260702224150.3730033-3-sdf@fomichev.me
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Mirror what call_netdevice_register_net_notifiers does but for the
teardown. Cover only DOWN and GOING_DOWN. UNREGISTER is still unlocked
because of the SW devices using dev_xxx methods.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260702224150.3730033-2-sdf@fomichev.me
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This series enables QoS configuration for QNOC type device which
can be found on SC8280XP platform. It enables QoS configuration
for master ports with predefined priority and urgency forwarding.
This helps in prioritizing the traffic originating from different
interconnect masters at NOC (Network On Chip).
The system may function normally without this feature. However,
enabling QoS helps optimize latency and bandwidth across subsystems
like CPU, GPU, and multimedia engines, which becomes important in
high-throughput scenarios. This is a feature aimed at performance
enhancement to improve system performance under concurrent workloads.
* icc-sc8280xp
dt-bindings: interconnect: qcom,sc8280xp-rpmh: Add reg and clocks for QoS
interconnect: qcom: sc8280xp: Enable QoS configuration
Link: https://patch.msgid.link/20260507-sc8280xp-qos-v1-0-15135858cd98@radxa.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
The client cap is currently advertised unconditionally, even for drivers
that do not support plane color pipelines. If clients supporting the latter,
like Wayland compositors or tools like drm_info, enable the client cap on
such drivers they will be left without both color pipeline and the legacy
properties COLOR_ENCODING and COLOR_RANGE, effectively breaking YUV->RGB
conversion support.
Prevent that by only marking the cap supported if there are actually planes
with color pipelines.
Note: while the color pipeline replacement for the legacy properties is
still under review (1), we can assume that it will work as a drop-in
replacement. That means any plane on any hardware currently supporting
the legacy properties will be able to offer a functionally equal color
pipeline and there will be no technical reason keep using the legacy
properties if both the driver and the client support the new API.
[1] https://lore.kernel.org/dri-devel/20260623164812.81110-1-harry.wentland@amd.com/
Signed-off-by: Robert Mader <robert.mader@collabora.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Fixes: 179ab8e7d7 ("drm/colorop: Introduce DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE")
Link: https://patch.msgid.link/20260703073230.19982-1-robert.mader@collabora.com
Suggested-by: Maarten Lankhorst <dev@lankhorst.se>
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
GPIO interrupts may retain stale state across warm reboots when
peripherals remain powered. If a GPIO line is not explicitly
configured for interrupts, this can result in interrupt storms
due to missing handlers.
Fix this by ensuring all interrupts are masked and disabled at
hardware initialization time via the init_hw() callback. Pending
interrupts are also cleared to start from a known-safe state.
Interrupts will be unmasked only when explicitly configured by
userspace or kernel drivers.
Signed-off-by: Liang Hao <haohlliang@gmail.com>
Link: https://patch.msgid.link/20260705074759.47863-1-haohlliang@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
GPIO consumers such as gpio-keys can enable IRQ wake and adjust the wake
trigger type from their suspend callbacks. If the DWAPB controller suspends
first, masking interrupts and disabling its clocks in the normal suspend
phase prevents that late wake configuration from reliably reaching the
hardware. Systems with real DWAPB bus clocks then fail to wake from s2idle
through GPIO keys.
Save the register context in the normal suspend callback, but defer IRQ
masking and clock gating until suspend_noirq. At that point all consumers
have finished configuring wake IRQs, so keep the clocks enabled when wake
lines are armed and only gate them when no wake source is active.
Resume_noirq reenables clocks, if they were gated, before the normal resume
path restores registers.
Propagate wake requests to the parent irqchip while keeping the local wake
mask in sync with failures.
Fixes: 6437c7ba69 ("gpio: dwapb: Add wakeup source support")
Signed-off-by: Jia Wang <wangjia@ultrarisc.com>
Link: https://patch.msgid.link/20260702-gpio-dwapb-wakeup-v2-1-203f2f33429f@ultrarisc.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
The .driver_data member of the struct pci_device_id array were
initialized by list expressions relying on hidden assignment of .class
and .class_mask in PCI_VDEVICE().
Make the initialization more robust by using a named initializer. This
robustness is relevant for a planned change to struct pci_device_id that
replaces .driver_data by an anonymous union.
This change doesn't introduce changes to the compiled pci_device_id
array. Tested on x86 and arm64.
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/20260524131905.871222-2-u.kleine-koenig@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The .driver_data member of the struct pci_device_id array were
initialized by list expressions. This isn't easily readable if you're
not into PCI, still more given that it's hidden in macros. Using named
initializers is more explicit and thus easier to parse for a human. And
it's also more robust against changes to the struct definition.
The mentioned robustness is relevant for a planned change to struct
pci_device_id that replaces .driver_data by an anonymous union.
Also drop a few explicit zeros that are not needed and improve
indention.
This change doesn't introduce changes to the compiled pci_device_id
array. Tested on x86 and arm64.
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/20260522140103.769262-2-u.kleine-koenig@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cfg80211_is_element_inherited() reads the first data octet of the
candidate element (id = elem->data[0]) to look it up in an extension
non-inheritance list. It does so after testing elem->id, but without
verifying that the element actually has a data octet. A zero-length
extension element (WLAN_EID_EXTENSION with length 0) therefore makes it
read one octet past the end of the element.
_ieee802_11_parse_elems_full() runs this check for every element of a
frame once a non-inheritance context exists -- e.g. while parsing a
per-STA profile of a Multi-Link element in a (re)association response,
or a non-transmitted BSS profile -- so a crafted frame from an AP can
trigger a one-octet slab-out-of-bounds read during element parsing:
BUG: KASAN: slab-out-of-bounds in cfg80211_is_element_inherited
Read of size 1 ... in net/wireless/scan.c
Return early (treat the element as inherited) when an extension element
carries no data, mirroring the existing handling of empty ID lists.
The bug was found by fuzzing ieee802_11_parse_elems_full() under KASAN.
Fixes: f7dacfb114 ("cfg80211: support non-inheritance element")
Signed-off-by: HE WEI (ギカク) <skyexpoc@gmail.com>
Link: https://patch.msgid.link/20260707094828.16465-1-skyexpoc@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Enable static QoS configuration for SC8280XP NoC master ports with
predefined priority and urgency forwarding values.
Add the QoS box data for the SC8280XP providers, add regmap configurations
for the real NoCs, and mark only aggre1_noc and aggre2_noc as requiring
clocks for QoS register access.
Signed-off-by: Xilin Wu <sophon@radxa.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://patch.msgid.link/20260507-sc8280xp-qos-v1-2-15135858cd98@radxa.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add the register range and clock properties needed for programming NoC QoS
configuration on SC8280XP.
Require a register range for the real NoC providers, require QoS clocks for
aggre1_noc and aggre2_noc, and keep the virtual clk_virt and mc_virt
providers without MMIO resources or clocks.
Signed-off-by: Xilin Wu <sophon@radxa.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260507-sc8280xp-qos-v1-1-15135858cd98@radxa.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
