| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
Using a volatile qualifier for a specific struct field is unusual.
Use instead READ_ONCE()/WRITE_ONCE() where necessary.
tcp_timewait_state_process() can change tw_substate while other
threads are reading this field.
Signed-off-by: Eric Dumazet <[email protected]>
Reviewed-by: Jason Xing <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
During the list_for_each_entry_rcu iteration call of xenvif_flush_hash,
kfree_rcu does not exist inside the rcu read critical section, so if
kfree_rcu is called when the rcu grace period ends during the iteration,
UAF occurs when accessing head->next after the entry becomes free.
Therefore, to solve this, you need to change it to list_for_each_entry_safe.
Signed-off-by: Jeongjun Park <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Regressions:
* wfx: fix for open network connection
* iwlwifi: fix for hibernate (due to fast resume feature)
* iwlwifi: fix for a few warnings that were recently added
(had previously been messages not warnings)
Previously broken:
* mwifiex: fix static structures used for per-device data
* iwlwifi: some harmless FW related messages were tagged
too high priority
* iwlwifi: scan buffers weren't checked correctly
* mac80211: SKB leak on beacon error path
* iwlwifi: fix ACPI table interop with certain BIOSes
* iwlwifi: fix locking for link selection
* mac80211: fix SSID comparison in beacon validation
* tag 'wireless-2024-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: iwlwifi: clear trans->state earlier upon error
wifi: wfx: repair open network AP mode
wifi: mac80211: free skb on error path in ieee80211_beacon_get_ap()
wifi: iwlwifi: mvm: don't wait for tx queues if firmware is dead
wifi: iwlwifi: mvm: allow 6 GHz channels in MLO scan
wifi: iwlwifi: mvm: pause TCM when the firmware is stopped
wifi: iwlwifi: fw: fix wgds rev 3 exact size
wifi: iwlwifi: mvm: take the mutex before running link selection
wifi: iwlwifi: mvm: fix iwl_mvm_max_scan_ie_fw_cmd_room()
wifi: iwlwifi: mvm: fix iwl_mvm_scan_fits() calculation
wifi: iwlwifi: lower message level for FW buffer destination
wifi: iwlwifi: mvm: fix hibernation
wifi: mac80211: fix beacon SSID mismatch handling
wifi: mwifiex: duplicate static structs used in driver instances
====================
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
Marek Gresko reports that the root user on an NFS client is able to
change the security labels on files on an NFS filesystem that is
exported with root squashing enabled.
The end of the kerneldoc comment for __vfs_setxattr_noperm() states:
* This function requires the caller to lock the inode's i_mutex before it
* is executed. It also assumes that the caller will make the appropriate
* permission checks.
nfsd_setattr() does do permissions checking via fh_verify() and
nfsd_permission(), but those don't do all the same permissions checks
that are done by security_inode_setxattr() and its related LSM hooks do.
Since nfsd_setattr() is the only consumer of security_inode_setsecctx(),
simplest solution appears to be to replace the call to
__vfs_setxattr_noperm() with a call to __vfs_setxattr_locked(). This
fixes the above issue and has the added benefit of causing nfsd to
recall conflicting delegations on a file when a client tries to change
its security label.
Cc: [email protected]
Reported-by: Marek Gresko <[email protected]>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218809
Signed-off-by: Scott Mayhew <[email protected]>
Tested-by: Stephen Smalley <[email protected]>
Reviewed-by: Stephen Smalley <[email protected]>
Reviewed-by: Chuck Lever <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Acked-by: Casey Schaufler <[email protected]>
Signed-off-by: Paul Moore <[email protected]>
|
|
Ethtool callbacks can be executed while reset is in progress and try to
access deleted resources, e.g. getting coalesce settings can result in a
NULL pointer dereference seen below.
Reproduction steps:
Once the driver is fully initialized, trigger reset:
# echo 1 > /sys/class/net/<interface>/device/reset
when reset is in progress try to get coalesce settings using ethtool:
# ethtool -c <interface>
BUG: kernel NULL pointer dereference, address: 0000000000000020
PGD 0 P4D 0
Oops: Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 11 PID: 19713 Comm: ethtool Tainted: G S 6.10.0-rc7+ #7
RIP: 0010:ice_get_q_coalesce+0x2e/0xa0 [ice]
RSP: 0018:ffffbab1e9bcf6a8 EFLAGS: 00010206
RAX: 000000000000000c RBX: ffff94512305b028 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff9451c3f2e588 RDI: ffff9451c3f2e588
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffff9451c3f2e580 R11: 000000000000001f R12: ffff945121fa9000
R13: ffffbab1e9bcf760 R14: 0000000000000013 R15: ffffffff9e65dd40
FS: 00007faee5fbe740(0000) GS:ffff94546fd80000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000020 CR3: 0000000106c2e005 CR4: 00000000001706f0
Call Trace:
<TASK>
ice_get_coalesce+0x17/0x30 [ice]
coalesce_prepare_data+0x61/0x80
ethnl_default_doit+0xde/0x340
genl_family_rcv_msg_doit+0xf2/0x150
genl_rcv_msg+0x1b3/0x2c0
netlink_rcv_skb+0x5b/0x110
genl_rcv+0x28/0x40
netlink_unicast+0x19c/0x290
netlink_sendmsg+0x222/0x490
__sys_sendto+0x1df/0x1f0
__x64_sys_sendto+0x24/0x30
do_syscall_64+0x82/0x160
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7faee60d8e27
Calling netif_device_detach() before reset makes the net core not call
the driver when ethtool command is issued, the attempt to execute an
ethtool command during reset will result in the following message:
netlink error: No such device
instead of NULL pointer dereference. Once reset is done and
ice_rebuild() is executing, the netif_device_attach() is called to allow
for ethtool operations to occur again in a safe manner.
Fixes: fcea6f3da546 ("ice: Add stats and ethtool support")
Suggested-by: Jakub Kicinski <[email protected]>
Reviewed-by: Igor Bagnucki <[email protected]>
Signed-off-by: Dawid Osuchowski <[email protected]>
Tested-by: Pucha Himasekhar Reddy <[email protected]> (A Contingent worker at Intel)
Reviewed-by: Michal Schmidt <[email protected]>
Signed-off-by: Tony Nguyen <[email protected]>
|
|
82580 NICs have a hardware bug that makes it
necessary to write into the TSICR (TimeSync Interrupt Cause) register
to clear it:
https://lore.kernel.org/all/CDCB8BE0.1EC2C%[email protected]/
Add a conditional so only for 82580 we write into the TSICR register,
so we don't risk losing events for other models.
Without this change, when running ptp4l with an Intel 82580 card,
I get the following output:
> timed out while polling for tx timestamp increasing tx_timestamp_timeout or
> increasing kworker priority may correct this issue, but a driver bug likely
> causes it
This goes away with this change.
This (partially) reverts commit ee14cc9ea19b ("igb: Fix missing time sync events").
Fixes: ee14cc9ea19b ("igb: Fix missing time sync events")
Closes: https://lore.kernel.org/intel-wired-lan/CAN0jFd1kO0MMtOh8N2Ztxn6f7vvDKp2h507sMryobkBKe=xk=w@mail.gmail.com/
Tested-by: Daiwei Li <[email protected]>
Suggested-by: Vinicius Costa Gomes <[email protected]>
Signed-off-by: Daiwei Li <[email protected]>
Acked-by: Vinicius Costa Gomes <[email protected]>
Reviewed-by: Kurt Kanzenbach <[email protected]>
Tested-by: Pucha Himasekhar Reddy <[email protected]> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <[email protected]>
|
|
detection from working
I noticed that the fast path feature detection was failing:
$ cat /tmp/build/perf-tools-next/feature/test-all.make.output
/usr/bin/ld: cannot find -lcap: No such file or directory
collect2: error: ld returned 1 exit status
$
The patch removing the dependency (Fixes tag below) didn't remove the
detection of libcap, and as the fast path feature detection (test-all.c)
had -lcap in its Makefile link list of libraries to link, it was failing
when libcap-devel is not available, fix it by removing those leftover
files.
Fixes: e25ebda78e230283 ("perf cap: Tidy up and improve capability testing")
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/lkml/Zs-gjOGFWtAvIZit@x1
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
This struct is never modified, so mark it const.
Signed-off-by: Thomas Weißschuh <[email protected]>
Link: https://lore.kernel.org/r/20240828-power-supply-const-psy_tzd_ops-v1-1-dc27176fda5b@weissschuh.net
Signed-off-by: Sebastian Reichel <[email protected]>
|
|
From Yu Kuai (with minor changes by Song Liu):
The background is that currently bitmap is using a global spin_lock,
causing lock contention and huge IO performance degradation for all raid
levels.
However, it's impossible to implement a new lock free bitmap with
current situation that md-bitmap exposes the internal implementation
with lots of exported apis. Hence bitmap_operations is invented, to
describe bitmap core implementation, and a new bitmap can be introduced
with a new bitmap_operations, we only need to switch to the new one
during initialization.
And with this we can build bitmap as kernel module, but that's not
our concern for now.
This version was tested with mdadm tests and lvm2 tests. This set does
not introduce new errors in these tests.
* md-6.12-bitmap: (42 commits)
md/md-bitmap: make in memory structure internal
md/md-bitmap: merge md_bitmap_enabled() into bitmap_operations
md/md-bitmap: merge md_bitmap_wait_behind_writes() into bitmap_operations
md/md-bitmap: merge md_bitmap_free() into bitmap_operations
md/md-bitmap: merge md_bitmap_set_pages() into struct bitmap_operations
md/md-bitmap: merge md_bitmap_copy_from_slot() into struct bitmap_operation.
md/md-bitmap: merge get_bitmap_from_slot() into bitmap_operations
md/md-bitmap: merge md_bitmap_resize() into bitmap_operations
md/md-bitmap: pass in mddev directly for md_bitmap_resize()
md/md-bitmap: merge md_bitmap_daemon_work() into bitmap_operations
md/md-bitmap: merge bitmap_unplug() into bitmap_operations
md/md-bitmap: merge md_bitmap_unplug_async() into md_bitmap_unplug()
md/md-bitmap: merge md_bitmap_sync_with_cluster() into bitmap_operations
md/md-bitmap: merge md_bitmap_cond_end_sync() into bitmap_operations
md/md-bitmap: merge md_bitmap_close_sync() into bitmap_operations
md/md-bitmap: merge md_bitmap_end_sync() into bitmap_operations
md/md-bitmap: remove the parameter 'aborted' for md_bitmap_end_sync()
md/md-bitmap: merge md_bitmap_start_sync() into bitmap_operations
md/md-bitmap: merge md_bitmap_endwrite() into bitmap_operations
md/md-bitmap: merge md_bitmap_startwrite() into bitmap_operations
...
Signed-off-by: Song Liu <[email protected]>
|
|
We're looking to add Rust module support, and I don't speak
Rust yet. The compromise was reached that in order to scale we'd
get volunteers committed from the Rust community willing to review
both Rust and C code for modules so we can ensure we get proper
reviews for both parts of the code and so that we can scale.
Add those who have stepped up to help.
Acked-by: Sami Tolvanen <[email protected]>
Acked-by: Petr Pavlu <[email protected]>
Acked-by: Daniel Gomez <[email protected]>
Signed-off-by: Luis Chamberlain <[email protected]>
|
|
Under certain conditions, the range to be cleared by FALLOC_FL_ZERO_RANGE
may only be buffered locally and not yet have been flushed to the server.
For example:
xfs_io -f -t -c "pwrite -S 0x41 0 4k" \
-c "pwrite -S 0x42 4k 4k" \
-c "fzero 0 4k" \
-c "pread -v 0 8k" /xfstest.test/foo
will write two 4KiB blocks of data, which get buffered in the pagecache,
and then fallocate() is used to clear the first 4KiB block on the server -
but we don't flush the data first, which means the EOF position on the
server is wrong, and so the FSCTL_SET_ZERO_DATA RPC fails (and xfs_io
ignores the error), but then when we try to read it, we see the old data.
Fix this by preflushing any part of the target region that above the
server's idea of the EOF position to force the server to update its EOF
position.
Note, however, that we don't want to simply expand the file by moving the
EOF before doing the FSCTL_SET_ZERO_DATA[*] because someone else might see
the zeroed region or if the RPC fails we then have to try to clean it up or
risk getting corruption.
[*] And we have to move the EOF first otherwise FSCTL_SET_ZERO_DATA won't
do what we want.
This fixes the generic/008 xfstest.
[!] Note: A better way to do this might be to split the operation into two
parts: we only do FSCTL_SET_ZERO_DATA for the part of the range below the
server's EOF and then, if that worked, invalidate the buffered pages for the
part above the range.
Fixes: 6b69040247e1 ("cifs/smb3: Fix data inconsistent when zero file range")
Signed-off-by: David Howells <[email protected]>
cc: Steve French <[email protected]>
cc: Zhang Xiaoxu <[email protected]>
cc: Pavel Shilovsky <[email protected]>
cc: Paulo Alcantara <[email protected]>
cc: Shyam Prasad N <[email protected]>
cc: Rohith Surabattula <[email protected]>
cc: Jeff Layton <[email protected]>
cc: [email protected]
cc: [email protected]
Signed-off-by: Steve French <[email protected]>
|
|
Commit fd00faa375fb ("PCI/VPD: Embed struct pci_vpd in struct pci_dev")
removed pci_vpd_release() but left the declaration. Remove the unused
declaration.
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Yue Haibing <[email protected]>
[bhelgaas: split per feature]
Signed-off-by: Bjorn Helgaas <[email protected]>
|
|
Commit b67ea76172d4 ("PCI / ACPI / PM: Platform support for PCI PME
wake-up") declared but never implemented __pci_pme_wakeup(). Remove the
unused declaration.
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Yue Haibing <[email protected]>
[bhelgaas: split per feature]
Signed-off-by: Bjorn Helgaas <[email protected]>
|
|
$ sudo ./perf test filtering -vv
96: perf record sample filtering (by BPF) tests:
--- start ---
test child forked, pid 2966908
Checking BPF-filter privilege
Basic bpf-filter test
Basic bpf-filter test [Success]
Failing bpf-filter test
Failing bpf-filter test [Success]
Group bpf-filter test
Group bpf-filter test [Success]
Multiple bpf-filter test
Multiple bpf-filter test [Success]
Cgroup bpf-filter test
Cgroup bpf-filter test [Success]
---- end(0) ----
96: perf record sample filtering (by BPF) tests : Ok
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Use the dev_err_probe() helper to simplify error handling during probe.
This also handle scenario, when EDEFER is returned and useless error
is printed.
Signed-off-by: Jinjie Ruan <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>
|
|
The second platform_get_resource_byname() can not be replaced with
devm_platform_ioremap_resource_byname(), because the intermediate "res"
is used by resource_size() later.
Fixes: 3bf2a5359b0b ("spi: wpcm-fiu: Use devm_platform_ioremap_resource_byname()")
Signed-off-by: Jinjie Ruan <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>
|
|
The new cgroup filter can take either of '==' or '!=' operator and a
pathname for the target cgroup.
$ perf record -a --all-cgroups -e cycles --filter 'cgroup == /abc/def' -- sleep 1
Users should have --all-cgroups option in the command line to enable
cgroup filtering. Technically it doesn't need to have the option as
it can get the current task's cgroup info directly from BPF. But I want
to follow the convention for the other sample info.
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The flex and bison files need to be recompiled when one of these header
filters are changed.
* util/bpf-filter.h
* util/bpf_skel/sample-filter.h
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The fields in the hist_entry are filled on-demand which means they only
have meaningful values when relevant sort keys are used.
So if neither of 'dso' nor 'sym' sort keys are used, the map/symbols in
the hist entry can be garbage. So it shouldn't access it
unconditionally.
I got a segfault, when I wanted to see cgroup profiles.
$ sudo perf record -a --all-cgroups --synth=cgroup true
$ sudo perf report -s cgroup
Program received signal SIGSEGV, Segmentation fault.
0x00005555557a8d90 in map__dso (map=0x0) at util/map.h:48
48 return RC_CHK_ACCESS(map)->dso;
(gdb) bt
#0 0x00005555557a8d90 in map__dso (map=0x0) at util/map.h:48
#1 0x00005555557aa39b in map__load (map=0x0) at util/map.c:344
#2 0x00005555557aa592 in map__find_symbol (map=0x0, addr=140736115941088) at util/map.c:385
#3 0x00005555557ef000 in hists__findnew_entry (hists=0x555556039d60, entry=0x7fffffffa4c0, al=0x7fffffffa8c0, sample_self=true)
at util/hist.c:644
#4 0x00005555557ef61c in __hists__add_entry (hists=0x555556039d60, al=0x7fffffffa8c0, sym_parent=0x0, bi=0x0, mi=0x0, ki=0x0,
block_info=0x0, sample=0x7fffffffaa90, sample_self=true, ops=0x0) at util/hist.c:761
#5 0x00005555557ef71f in hists__add_entry (hists=0x555556039d60, al=0x7fffffffa8c0, sym_parent=0x0, bi=0x0, mi=0x0, ki=0x0,
sample=0x7fffffffaa90, sample_self=true) at util/hist.c:779
#6 0x00005555557f00fb in iter_add_single_normal_entry (iter=0x7fffffffa900, al=0x7fffffffa8c0) at util/hist.c:1015
#7 0x00005555557f09a7 in hist_entry_iter__add (iter=0x7fffffffa900, al=0x7fffffffa8c0, max_stack_depth=127, arg=0x7fffffffbce0)
at util/hist.c:1260
#8 0x00005555555ba7ce in process_sample_event (tool=0x7fffffffbce0, event=0x7ffff7c14128, sample=0x7fffffffaa90, evsel=0x555556039ad0,
machine=0x5555560388e8) at builtin-report.c:334
#9 0x00005555557b30c8 in evlist__deliver_sample (evlist=0x555556039010, tool=0x7fffffffbce0, event=0x7ffff7c14128,
sample=0x7fffffffaa90, evsel=0x555556039ad0, machine=0x5555560388e8) at util/session.c:1232
#10 0x00005555557b32bc in machines__deliver_event (machines=0x5555560388e8, evlist=0x555556039010, event=0x7ffff7c14128,
sample=0x7fffffffaa90, tool=0x7fffffffbce0, file_offset=110888, file_path=0x555556038ff0 "perf.data") at util/session.c:1271
#11 0x00005555557b3848 in perf_session__deliver_event (session=0x5555560386d0, event=0x7ffff7c14128, tool=0x7fffffffbce0,
file_offset=110888, file_path=0x555556038ff0 "perf.data") at util/session.c:1354
#12 0x00005555557affaf in ordered_events__deliver_event (oe=0x555556038e60, event=0x555556135aa0) at util/session.c:132
#13 0x00005555557bb605 in do_flush (oe=0x555556038e60, show_progress=false) at util/ordered-events.c:245
#14 0x00005555557bb95c in __ordered_events__flush (oe=0x555556038e60, how=OE_FLUSH__ROUND, timestamp=0) at util/ordered-events.c:324
#15 0x00005555557bba46 in ordered_events__flush (oe=0x555556038e60, how=OE_FLUSH__ROUND) at util/ordered-events.c:342
#16 0x00005555557b1b3b in perf_event__process_finished_round (tool=0x7fffffffbce0, event=0x7ffff7c15bb8, oe=0x555556038e60)
at util/session.c:780
#17 0x00005555557b3b27 in perf_session__process_user_event (session=0x5555560386d0, event=0x7ffff7c15bb8, file_offset=117688,
file_path=0x555556038ff0 "perf.data") at util/session.c:1406
As you can see the entry->ms.map was NULL even if he->ms.map has a
value. This is because 'sym' sort key is not given, so it cannot assume
whether he->ms.sym and entry->ms.sym is the same. I only checked the
'sym' sort key here as it implies 'dso' behavior (so maps are the same).
Fixes: ac01c8c4246546fd ("perf hist: Update hist symbol when updating maps")
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Matt Fleming <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Shellcheck versions < v0.7.2 can't follow this path so add the helper to
fix the following warning:
In tests/shell/trace_btf_enum.sh line 13:
. "$(dirname $0)"/lib/probe.sh
^--------------------------^ SC1090: Can't follow non-constant source.
Use a directive to specify location.
Fixes: d66763fed30f0bd8 ("perf test trace_btf_enum: Add regression test for the BTF augmentation of enums in 'perf trace'")
Signed-off-by: James Clark <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Howard Chu <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The 'pmu' pointer in the auxtrace_record structure is not used after
support multiple AUX events, remove it.
Reviewed-by: Adrian Hunter <[email protected]>
Signed-off-by: Leo Yan <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Suzuki Poulouse <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Use evsel__is_aux_event() to decide if an event is a AUX event, this is
a refactoring to replace comparing the PMU type.
Reviewed-by: Adrian Hunter <[email protected]>
Signed-off-by: Leo Yan <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Suzuki Poulouse <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The Yitian 710 is not a Freescale/NXP design and thus should
be located in a separate T-Head vendor directory.
Reviewed-by: Jing Zhang <[email protected]>
Signed-off-by: Lucas Stach <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: John Garry <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Shuai Xue <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Use the dev_err_probe() helper to simplify error handling during probe.
This also handle scenario, when EDEFER is returned and useless error
is printed.
Signed-off-by: Jinjie Ruan <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>
|
|
The second platform_get_resource_byname() can not be replaced with
devm_platform_ioremap_resource_byname(), because the intermediate "res"
is used to assign for "aq->mmap_size".
Fixes: 3ccea1dedef3 ("spi: atmel-quadspi: Simpify resource lookup")
Signed-off-by: Jinjie Ruan <[email protected]>
Acked-by: Hari Prasath Gujulan Elango <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>
|
|
Move PM_BR_MPRED_CMPL event from cache.json to frontend.json file
for power10 platform
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Kajol Jain <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Disha Goel <[email protected]>
Cc: Hari Bathini <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Move some of the JSON/events from others.json to more appropriate JSON
files for power10 platform.
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Kajol Jain <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Disha Goel <[email protected]>
Cc: Hari Bathini <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Update JSON/events for power10 platform with additional events.
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Kajol Jain <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Disha Goel <[email protected]>
Cc: Hari Bathini <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
trace__btf_scnprintf()
Since we'll need it later in the current patch series and we can get the
syscall_arg_fmt from syscall_arg->fmt.
Based-on-a-patch-by: Howard Chu <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/lkml/Zsd8vqCrTh5h69rp@x1
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
'perf trace -p <PID>' work on a syscall that is unaugmented, but doesn't
work on a syscall that's augmented (when it calls perf_event_output() in
BPF).
Let's take open() as an example. open() is augmented in perf trace.
Before:
$ perf trace -e open -p 3792392
? ( ): ... [continued]: open()) = -1 ENOENT (No such file or directory)
? ( ): ... [continued]: open()) = -1 ENOENT (No such file or directory)
We can see there's no output.
After:
$ perf trace -e open -p 3792392
0.000 ( 0.123 ms): a.out/3792392 open(filename: "DINGZHEN", flags: WRONLY) = -1 ENOENT (No such file or directory)
1000.398 ( 0.116 ms): a.out/3792392 open(filename: "DINGZHEN", flags: WRONLY) = -1 ENOENT (No such file or directory)
Reason:
bpf_perf_event_output() will fail when you specify a pid in 'perf trace' (EOPNOTSUPP).
When using 'perf trace -p 114', before perf_event_open(), we'll have PID
= 114, and CPU = -1.
This is bad for bpf-output event, because the ring buffer won't accept
output from BPF's perf_event_output(), making it fail. I'm still trying
to find out why.
If we open bpf-output for every cpu, instead of setting it to -1, like
this:
PID = <PID>, CPU = 0
PID = <PID>, CPU = 1
PID = <PID>, CPU = 2
PID = <PID>, CPU = 3
Everything works.
You can test it with this script (open.c):
#include <unistd.h>
#include <sys/syscall.h>
int main()
{
int i1 = 1, i2 = 2, i3 = 3, i4 = 4;
char s1[] = "DINGZHEN", s2[] = "XUEBAO";
while (1) {
syscall(SYS_open, s1, i1, i2);
sleep(1);
}
return 0;
}
save, compile:
make open
perf trace:
perf trace -e open <path-to-the-executable>
Signed-off-by: Howard Chu <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
We'll use it in the next patch, to deciding how to set up the ring
buffer.
Signed-off-by: Howard Chu <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
In stats mode PERF_RECORD_EVENT_UPDATE isn't being handled meaning the
evsels aren't named when handling pipe mode output.
Before:
$ perf record -e inst_retired.any -a -o - sleep 0.1|perf report --stats -i -
...
Aggregated stats:
TOTAL events: 23358
COMM events: 2608 (11.2%)
EXIT events: 1 ( 0.0%)
FORK events: 2607 (11.2%)
SAMPLE events: 174 ( 0.7%)
MMAP2 events: 17936 (76.8%)
ATTR events: 2 ( 0.0%)
FINISHED_ROUND events: 2 ( 0.0%)
ID_INDEX events: 1 ( 0.0%)
THREAD_MAP events: 1 ( 0.0%)
CPU_MAP events: 1 ( 0.0%)
EVENT_UPDATE events: 3 ( 0.0%)
TIME_CONV events: 1 ( 0.0%)
FEATURE events: 20 ( 0.1%)
FINISHED_INIT events: 1 ( 0.0%)
raw 0xc0 stats:
SAMPLE events: 174
After:
$ perf record -e inst_retired.any -a -o - sleep 0.1|perf report --stats -i -
...
Aggregated stats:
TOTAL events: 23742
COMM events: 2620 (11.0%)
EXIT events: 2 ( 0.0%)
FORK events: 2619 (11.0%)
SAMPLE events: 165 ( 0.7%)
MMAP2 events: 18304 (77.1%)
ATTR events: 2 ( 0.0%)
FINISHED_ROUND events: 2 ( 0.0%)
ID_INDEX events: 1 ( 0.0%)
THREAD_MAP events: 1 ( 0.0%)
CPU_MAP events: 1 ( 0.0%)
EVENT_UPDATE events: 3 ( 0.0%)
TIME_CONV events: 1 ( 0.0%)
FEATURE events: 20 ( 0.1%)
FINISHED_INIT events: 1 ( 0.0%)
inst_retired.any stats:
SAMPLE events: 165
This makes the pipe output match the regular output.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
tools/perf' target
Signed-off-by: Michael Petlan <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Veronika Molnarova <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Add a new 'perf report' test case that acts as an entry element in 'perf
test list'.
Runs multiple subtests from directory "base_report", which can be
expanded without further editing.
Signed-off-by: Veronika Molnarova <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael Petlan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Test basic execution and some options of perf-report subcommand, like
show-nr-samples, header, showcpuutilization, pid and symbol filtering.
Signed-off-by: Veronika Molnarova <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael Petlan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
As a form of validation, it is a common practice to check the outputs
of commands whether they contain expected patterns or match a certain
regular expression.
This output checking helper is designed to allow checking stderr output
of perf commands for unexpected messages, while ignoring messages that
are known to be harmless, e.g.:
"Lowering default frequency rate to \d+\."
"\d+ out of order events recorded."
etc.
Signed-off-by: Veronika Molnarova <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael Petlan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The perf-probe command uses a specific semantics to describe probes.
Test some patterns that are known to be both valid and invalid if
they are handled appropriately.
This test is run as a part of perftool-testsuite_probe test case.
Signed-off-by: Veronika Molnarova <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael Petlan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Test if various incompatible options are correctly handled-rejected.
It is run as a part of perftool-testsuite_probe test case.
Signed-off-by: Veronika Molnarova <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael Petlan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Test basic behavior of perf-probe subcommand. It is run as a part of
perftool-testsuite_probe test case.
Signed-off-by: Veronika Molnarova <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael Petlan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Test perf probe interface. Blacklisted functions should be rejected
when there is an attempt to set a kprobe to them.
Signed-off-by: Veronika Molnarova <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael Petlan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Shellcheck is becoming a standard when building perf to prevent
any unnecessary mistakes. Fix shellcheck warnings in perf testsuite.
Signed-off-by: Veronika Molnarova <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael Petlan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Merge perf testsuite setting files into common settings to reduce
duplicates and prevent errors.
Signed-off-by: Michael Petlan <[email protected]>
Signed-off-by: Veronika Molnarova <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The test scripts in base_* directories currently have their own drivers
that run them. Before this patch, the shell test-suite generator causes
them to run twice. Fix that by skipping them in the generator.
A cleaner solution (for future) will be to use the directory structure
idea (introduced by Carsten Haitzler in 7391db645938 ("perf test:
Refactor shell tests allowing subdirs")) to generate test entries with
subtests, like:
$ perf test list
[...]
97: perf probe shell tests
97:1: perf probe basic functionality
97:2: perf probe tests with arguments
97:3: perf probe invalid options handling
[...]
There is already a lot of shell test scripts and many are about to come,
so there is a need for some hierarchy.
Signed-off-by: Michael Petlan <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Veronika Molnarova <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The getname_flags() routine changed recently and thus the place where we
were getting the pathname is not probeable anymore, albeit still
present, so use the next line for that, before:
root@number:/home/acme/git/perf-tools-next# perf test vfs_getname
91: Add vfs_getname probe to get syscall args filenames : FAILED!
93: Use vfs_getname probe to get syscall args filenames : FAILED!
126: Check open filename arg using perf trace + vfs_getname : FAILED!
root@number:/home/acme/git/perf-tools-next#
Now tests 91 and 126 are passing, some more investigation is needed for
test 93, that continues to fail.
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Add Multiple bpf-filter test for two or more events with filters.
It uses task-clock and page-faults events with different filter
expressions and check the perf script output
$ sudo ./perf test filtering -vv
96: perf record sample filtering (by BPF) tests:
--- start ---
test child forked, pid 2804025
Checking BPF-filter privilege
Basic bpf-filter test
Basic bpf-filter test [Success]
Failing bpf-filter test
Error: task-clock event does not have PERF_SAMPLE_CPU
Failing bpf-filter test [Success]
Group bpf-filter test
Error: task-clock event does not have PERF_SAMPLE_CPU
Error: task-clock event does not have PERF_SAMPLE_CODE_PAGE_SIZE
Group bpf-filter test [Success]
Multiple bpf-filter test
Multiple bpf-filter test [Success]
---- end(0) ----
96: perf record sample filtering (by BPF) tests : Ok
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: KP Singh <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Song Liu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Print the actual dropped sample count in the event stat.
$ sudo perf record -o- -e cycles --filter 'period < 10000' \
-e instructions --filter 'ip > 0x8000000000000000' perf test -w noploop | \
perf report --stat -i-
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.058 MB - ]
Aggregated stats:
TOTAL events: 469
MMAP events: 268 (57.1%)
COMM events: 2 ( 0.4%)
EXIT events: 1 ( 0.2%)
SAMPLE events: 16 ( 3.4%)
MMAP2 events: 22 ( 4.7%)
LOST_SAMPLES events: 2 ( 0.4%)
KSYMBOL events: 89 (19.0%)
BPF_EVENT events: 39 ( 8.3%)
ATTR events: 2 ( 0.4%)
FINISHED_ROUND events: 1 ( 0.2%)
ID_INDEX events: 1 ( 0.2%)
THREAD_MAP events: 1 ( 0.2%)
CPU_MAP events: 1 ( 0.2%)
EVENT_UPDATE events: 2 ( 0.4%)
TIME_CONV events: 1 ( 0.2%)
FEATURE events: 20 ( 4.3%)
FINISHED_INIT events: 1 ( 0.2%)
cycles stats:
SAMPLE events: 2
LOST_SAMPLES (BPF) events: 4010
instructions stats:
SAMPLE events: 14
LOST_SAMPLES (BPF) events: 3990
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: KP Singh <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Song Liu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
So far it used tgid as a key to get the filter expressions in the
pinned filters map for regular users but it won't work well if the has
more than one filters at the same time. Let's add the event id to the
key of the filter hash map so that it can identify the right filter
expression in the BPF program.
As the event can be inherited to child tasks, it should use the primary
id which belongs to the parent (original) event. Since evsel opens the
event for multiple CPUs and tasks, it needs to maintain a separate hash
map for the event id.
In the user space, it keeps a list for the multiple evsel and release
the entries in the both hash map when it closes the event.
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: KP Singh <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Song Liu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Perf crashes as below when applying --no-group
# perf record -e "{cache-misses,branches"} -b sleep 1
# perf report --stdio --no-group
free(): invalid next size (fast)
Aborted (core dumped)
#
In the __hpp__fmt(), only 1 hpp_fmt_value is allocated for the current
event when --no-group is applied.
However, the current implementation tries to assign the hists from all
members to the hpp_fmt_value, which exceeds the allocated memory.
Fixes: 8f6071a3dce40e69 ("perf hist: Simplify __hpp_fmt() using hpp_fmt_data")
Signed-off-by: Kan Liang <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The BBM module provides RTC feature. To i.MX95, this module is managed by
System Manager and exported System Control Management Interface(SCMI).
Linux could use i.MX SCMI BBM Extension protocol to use RTC feature.
This driver is to use SCMI interface to get/set RTC.
Reviewed-by: Cristian Marussi <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
Message-Id: <[email protected]>
Acked-by: Alexandre Belloni <[email protected]>
Signed-off-by: Sudeep Holla <[email protected]>
|
|
The BBM module provides BUTTON feature. To i.MX95, this module
is managed by System Manager and exported using System Management
Control Interface(SCMI). Linux could use i.MX SCMI BBM Extension
protocol to use BUTTON feature.
This driver is to use SCMI interface to enable pwrkey.
Acked-by: Dmitry Torokhov <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Sudeep Holla <[email protected]>
|