These objects are the trans_chain subtype, so use the helper instead
of referencing trans->ctx, which will be removed soon.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Currently the chain can be derived from trans->ctx.chain, but
the ctx will go away soon.
Thus add the chain pointer to nft_trans_rule structure itself.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
nft_ctx is stored in nft_trans object, but nft_ctx is large
(48 bytes on 64-bit platforms), it should not be embedded in
the transaction structures.
Reduce its usage so we can remove it eventually.
This replaces trans->ctx.chain with the chain pointer
already available in nft_trans_chain structure.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
These functions pass a pointer to the base object type, use the
more specific one. No functional change intended.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
It would be better to not store nft_ctx inside nft_trans object,
the netlink ctx strucutre is huge and most of its information is
never needed in places that use trans->ctx.
Avoid/reduce its usage if possible, no runtime behaviour change
intended.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
nft_ctx is huge, it should not be stored in nft_trans at all,
most information is not needed.
Preparation patch to remove trans->ctx, no change in behaviour intended.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Only nft_trans_chain and nft_trans_set subtypes use the
trans->binding_list member.
Add a new common binding subtype and move the member there.
This reduces size of all other subtypes by 16 bytes on 64bit platforms.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
There is 'struct nft_trans', the basic structure for all transactional
objects, and the the various different transactional objects, such as
nft_trans_table, chain, set, set_elem and so on.
Right now 'struct nft_trans' uses a flexible member at the tail
(data[]), and casting is needed to access the actual type-specific
members.
Change this to make the hierarchy visible in source code, i.e. make
struct nft_trans the first member of all derived subtypes.
This has several advantages:
1. pahole output reflects the real size needed by the particular subtype
2. allows to use container_of() to convert the base type to the actual
object type instead of casting ->data to the overlay structure.
3. It makes it easy to add intermediate types.
'struct nft_trans' contains a 'binding_list' that is only needed
by two subtypes, so it should be part of the two subtypes, not in
the base structure.
But that makes it hard to interate over the binding_list, because
there is no common base structure.
A follow patch moves the bind list to a new struct:
struct nft_trans_binding {
struct nft_trans nft_trans;
struct list_head binding_list;
};
... and makes that structure the new 'first member' for both
nft_trans_chain and nft_trans_set.
No functional change intended in this patch.
Some numbers:
struct nft_trans { /* size: 88, cachelines: 2, members: 5 */
struct nft_trans_chain { /* size: 152, cachelines: 3, members: 10 */
struct nft_trans_elem { /* size: 112, cachelines: 2, members: 4 */
struct nft_trans_flowtable { /* size: 128, cachelines: 2, members: 5 */
struct nft_trans_obj { /* size: 112, cachelines: 2, members: 4 */
struct nft_trans_rule { /* size: 112, cachelines: 2, members: 5 */
struct nft_trans_set { /* size: 120, cachelines: 2, members: 8 */
struct nft_trans_table { /* size: 96, cachelines: 2, members: 2 */
Of particular interest is nft_trans_elem, which needs to be allocated
once for each pending (to be added or removed) set element.
Add BUILD_BUG_ON to check struct nft_trans is placed at the top of
the container structure.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
If reg list is already loaded on PSP 13.0.2 SOCs, psp will give
TEE_ERR_CANCEL response on second time load. Avoid printing warn
message for it.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Instead of using state->fb->obj[0] directly, get object from framebuffer
by calling drm_gem_fb_get_obj() and return error code when object is
null to avoid using null object of framebuffer.
Reported-by: Fusheng Huang <fusheng.huang@ecarxgroup.com>
Signed-off-by: Julia Zhang <Julia.Zhang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
[WHY]
New register field added in DP2.1 SCR, needed for auxless ALPM
[HOW]
Echo value read from 0xF0007 back to sink
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cache the PCI state before bus master is disabled. The saved state is
later used for other cases like restoring config space after mode-2
reset.
Fixes: 5c03e5843e ("drm/amdgpu:add smu mode1/2 support for aldebaran")
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The SDCA spec defines a 'selected_mode' control which can override
the 'detected_mode' reported by hardware.
This is useful for platform integration as well as in cases
where the hardware(e.g. 3.5mm jack cable) is not able to accurately detect the jack type.
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Tested-by: yung-chuan.liao@linux.intel.com
Link: https://patch.msgid.link/20240625084303.2273911-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have also v2.1 version of the codec (see 'enum lpass_codec_version'),
so handle it as well in all switch cases.
Fixes: dbacef0589 ("ASoC: codec: lpass-rx-macro: prepare driver to accomdate new codec versions")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://patch.msgid.link/20240625160614.450506-1-krzysztof.kozlowski@linaro.org
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
v3.x changed the how vram width was encoded. The previous
implementation actually worked correctly for most boards.
Fix the implementation to work correctly everywhere.
This fixes the vram width reported in the kernel log on
some boards.
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Guilherme reported a crash in perf mem record. It's because the
perf_mem_event->name was NULL on his machine. It should just return
a NULL string when it has no format string in the name.
The backtrace at the crash is below:
Program received signal SIGSEGV, Segmentation fault.
__strchrnul_avx2 () at ../sysdeps/x86_64/multiarch/strchr-avx2.S:67
67 vmovdqu (%rdi), %ymm2
(gdb) bt
#0 __strchrnul_avx2 () at ../sysdeps/x86_64/multiarch/strchr-avx2.S:67
#1 0x00007ffff6c982de in __find_specmb (format=0x0) at printf-parse.h:82
#2 __printf_buffer (buf=buf@entry=0x7fffffffc760, format=format@entry=0x0, ap=ap@entry=0x7fffffffc880,
mode_flags=mode_flags@entry=0) at vfprintf-internal.c:649
#3 0x00007ffff6cb7840 in __vsnprintf_internal (string=<optimized out>, maxlen=<optimized out>, format=0x0,
args=0x7fffffffc880, mode_flags=mode_flags@entry=0) at vsnprintf.c:96
#4 0x00007ffff6cb787f in ___vsnprintf (string=<optimized out>, maxlen=<optimized out>, format=<optimized out>,
args=<optimized out>) at vsnprintf.c:103
#5 0x00005555557b9391 in scnprintf (buf=0x555555fe9320 <mem_loads_name> "", size=100, fmt=0x0)
at ../lib/vsprintf.c:21
#6 0x00005555557b74c3 in perf_pmu__mem_events_name (i=0, pmu=0x555556832180) at util/mem-events.c:106
#7 0x00005555557b7ab9 in perf_mem_events__record_args (rec_argv=0x55555684c000, argv_nr=0x7fffffffca20)
at util/mem-events.c:252
#8 0x00005555555e370d in __cmd_record (argc=3, argv=0x7fffffffd760, mem=0x7fffffffcd80) at builtin-mem.c:156
#9 0x00005555555e49c4 in cmd_mem (argc=4, argv=0x7fffffffd760) at builtin-mem.c:514
#10 0x000055555569716c in run_builtin (p=0x555555fcde80 <commands+672>, argc=8, argv=0x7fffffffd760) at perf.c:349
#11 0x0000555555697402 in handle_internal_command (argc=8, argv=0x7fffffffd760) at perf.c:402
#12 0x0000555555697560 in run_argv (argcp=0x7fffffffd59c, argv=0x7fffffffd590) at perf.c:446
#13 0x00005555556978a6 in main (argc=8, argv=0x7fffffffd760) at perf.c:562
Reported-by: Guilherme Amadio <amadio@cern.ch>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Closes: https://lore.kernel.org/linux-perf-users/Zlns_o_IE5L28168@cern.ch
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240621170528.608772-5-namhyung@kernel.org
A compiler warning on the second argument of bsearch() should not be
NULL, but there's a case we might pass it. Let's return early if we
don't have any DSOs to search in __dsos__find_by_longname_id().
util/dsos.c:184:8: runtime error: null pointer passed as argument 2, which is declared to never be null
Reported-by: kernel test robot <oliver.sang@intel.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Closes: https://lore.kernel.org/oe-lkp/202406180932.84be448c-oliver.sang@intel.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240621170528.608772-4-namhyung@kernel.org
In dso__load(), it checks if the dso is a kernel module by looking the
symtab type. Actually dso has 'is_kmod' field to check that easily and
dso__set_module_info() set the symtab type and the is_kmod bit. So it
should have the same result to check the is_kmod bit.
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240621170528.608772-3-namhyung@kernel.org
It's expected that both hist entries are in the same hists when
comparing two. But the current code in the function checks one without
dso sort key and other with the key. This would make the condition true
in any case.
I guess the intention of the original commit was to add '!' for the
right side too. But as it should be the same, let's just remove it.
Fixes: 69849fc5d2 ("perf hists: Move sort__has_dso into struct perf_hpp_list")
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240621170528.608772-2-namhyung@kernel.org
In the previous loop, all the members in the aliases[j-1] have been freed
and set to NULL. But in this loop, the function pmu_alias_is_duplicate()
compares the aliases[j] with the aliases[j-1] that has already been
disposed, so the function will always return false and duplicate aliases
will never be discarded.
If we find duplicate aliases, it skips the zfree aliases[j], which is
accompanied by a memory leak.
We can use the next aliases[j+1] to theck for duplicate aliases to
fixes the aliases NULL pointer dereference, then goto zfree code snippet
to release it.
After patch testing:
$ perf list --unit=hisi_sicl,cpa pmu
uncore cpa:
cpa_p0_rd_dat_32b
[Number of read ops transmitted by the P0 port which size is 32 bytes.
Unit: hisi_sicl,cpa]
cpa_p0_rd_dat_64b
[Number of read ops transmitted by the P0 port which size is 64 bytes.
Unit: hisi_sicl,cpa]
Fixes: c3245d2093 ("perf pmu: Abstract alias/event struct")
Signed-off-by: Junhao He <hejunhao3@huawei.com>
Cc: ravi.bangoria@amd.com
Cc: james.clark@arm.com
Cc: prime.zeng@hisilicon.com
Cc: cuigaosheng1@huawei.com
Cc: jonathan.cameron@huawei.com
Cc: linuxarm@huawei.com
Cc: yangyicong@huawei.com
Cc: robh@kernel.org
Cc: renyu.zj@linux.alibaba.com
Cc: kjain@linux.ibm.com
Cc: john.g.garry@oracle.com
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240614094318.11607-1-hejunhao3@huawei.com
Add malloc() failure handling in unread_unwind_spec_debug_frame().
This make caller find_proc_info() works well when the allocation failure.
Signed-off-by: Yunseong Kim <yskelg@gmail.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Austin Kim <austindh.kim@gmail.com>
Cc: shjy180909@gmail.com
Cc: Ze Gao <zegao2021@gmail.com>
Cc: Leo Yan <leo.yan@linux.dev>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240619204211.6438-2-yskelg@gmail.com
This patch resolve following warning.
tools/perf/util/evsel.c:1620:9: error: result of comparison of constant
-1 with expression of type 'char' is always false
-Werror,-Wtautological-constant-out-of-range-compare
1620 | if (c == -1)
| ~ ^ ~~
Signed-off-by: Yunseong Kim <yskelg@gmail.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Austin Kim <austindh.kim@gmail.com>
Cc: shjy180909@gmail.com
Cc: Ze Gao <zegao2021@gmail.com>
Cc: Leo Yan <leo.yan@linux.dev>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240619203428.6330-2-yskelg@gmail.com
When using perf timehist, sch delay is only computed for a waking task,
not for a pre empted task. This patches changes sch delay to account for
both. This makes sense as testing scheduling policy need to consider the
effect of scheduling delay globally, not only for waking tasks.
Example of `perf timehist` report before the patch for `stress` task
competing with each other.
First column is wait time, second column sch delay, third column
runtime.
1.492060 [0000] s stress[81] 1.999 0.000 2.000 R next: stress[83]
1.494060 [0000] s stress[83] 2.000 0.000 2.000 R next: stress[81]
1.496060 [0000] s stress[81] 2.000 0.000 2.000 R next: stress[83]
1.498060 [0000] s stress[83] 2.000 0.000 1.999 R next: stress[81]
After the patch, it looks like this (note that all wait time is not zero
anymore):
1.492060 [0000] s stress[81] 1.999 1.999 2.000 R next: stress[83]
1.494060 [0000] s stress[83] 2.000 2.000 2.000 R next: stress[81]
1.496060 [0000] s stress[81] 2.000 2.000 2.000 R next: stress[83]
1.498060 [0000] s stress[83] 2.000 2.000 1.999 R next: stress[81]
Signed-off-by: Fernand Sieber <sieberf@amazon.com>
Reviewed-by: Madadi Vineeth Reddy <vineethr@linux.ibm.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240618090339.87482-1-sieberf@amazon.com
Add samples of APX and other new instructions to the 'x86 instruction
decoder - new instructions' test.
Note the test is only available if the perf tool has been built with
EXTRA_TESTS=1.
Example:
$ make EXTRA_TESTS=1 -C tools/perf
$ tools/perf/perf test -F -v 'new ins' |& grep -i 'jmpabs\|popp\|pushp'
Decoded ok: d5 00 a1 ef cd ab 90 78 56 34 12 jmpabs $0x1234567890abcdef
Decoded ok: d5 08 53 pushp %rbx
Decoded ok: d5 18 50 pushp %r16
Decoded ok: d5 19 57 pushp %r31
Decoded ok: d5 19 5f popp %r31
Decoded ok: d5 18 58 popp %r16
Decoded ok: d5 08 5b popp %rbx
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Chang S. Bae <chang.seok.bae@intel.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Nikolay Borisov <nik.borisov@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: x86@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240502105853.5338-11-adrian.hunter@intel.com
JMPABS is 64-bit absolute direct jump instruction, encoded with a mandatory
REX2 prefix. JMPABS is designed to be used in the procedure linkage table
(PLT) to replace indirect jumps, because it has better performance. In that
case the jump target will be amended at run time. To enable Intel PT to
follow the code, a TIP packet is always emitted when JMPABS is traced under
Intel PT.
Refer to the Intel Advanced Performance Extensions (Intel APX) Architecture
Specification for details.
Decode JMPABS as an indirect jump, because it has an associated TIP packet
the same as an indirect jump and the control flow should follow the TIP
packet payload, and not assume it is the same as the on-file object code
JMPABS target address.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Chang S. Bae <chang.seok.bae@intel.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Nikolay Borisov <nik.borisov@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: x86@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240502105853.5338-10-adrian.hunter@intel.com
Test "perf probe of function from different CU" only checks if the perf
command has failed and doesn't test the --funcs output. In the issue
reported in the previous commit, the garbage output of the --funcs
command was being ignored by the test when it could have been caught.
The script first makes use of --funcs option with the perf probe command
to check if the function "foo" exists in the testfile before adding a
probe to it in the next command. The output of probe...--funcs command
is redirected to stdout, therefore, add '| grep "foo"' to validate the
result.
Signed-off-by: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: anshuman.khandual@arm.com
Cc: james.clark@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240601125946.1741414-11-ChaitanyaS.Prakash@arm.com
perf test "perf script tests" fails as below in systems
with python 3.6
File "/home/athira/linux/tools/perf/tests/shell/../../scripts/python/parallel-perf.py", line 442
if line := p.stdout.readline():
^
SyntaxError: invalid syntax
--- Cleaning up ---
---- end(-1) ----
92: perf script tests: FAILED!
This happens because ":=" is a new syntax that assigns values
to variables as part of a larger expression. This is introduced
from python 3.8 and hence fails in setup with python 3.6
Address this by splitting the large expression and check the
value in two steps:
Previous line: if line := p.stdout.readline():
Current change:
line = p.stdout.readline()
if line:
With patch
./perf test "perf script tests"
93: perf script tests: Ok
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: akanksha@linux.ibm.com
Cc: kjain@linux.ibm.com
Cc: maddy@linux.ibm.com
Cc: disgoel@linux.vnet.ibm.com
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240623064850.83720-3-atrajeev@linux.vnet.ibm.com
commit 80d496be89 ("perf report: Add support for profiling JIT
generated code") added support for profiling JIT generated code.
This patch handles dso's of form "/tmp/perf-$PID.map".
Some of the references doesn't check exactly for same pattern.
some uses "if (!strncmp(dso_name, "/tmp/perf-", 10))". Fix
this by using helper function perf_pid_map_tid and
is_perf_pid_map_name which looks for proper pattern of
form: "/tmp/perf-$PID.map" for these checks.
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: akanksha@linux.ibm.com
Cc: kjain@linux.ibm.com
Cc: maddy@linux.ibm.com
Cc: disgoel@linux.vnet.ibm.com
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240623064850.83720-2-atrajeev@linux.vnet.ibm.com
Perf test for perf probe of function from different CU fails
as below:
./perf test -vv "test perf probe of function from different CU"
116: test perf probe of function from different CU:
--- start ---
test child forked, pid 2679
Failed to find symbol foo in /tmp/perf-uprobe-different-cu-sh.Msa7iy89bx/testfile
Error: Failed to add events.
--- Cleaning up ---
"foo" does not hit any event.
Error: Failed to delete events.
---- end(-1) ----
116: test perf probe of function from different CU : FAILED!
The test does below to probe function "foo" :
# gcc -g -Og -flto -c /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile-foo.c
-o /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile-foo.o
# gcc -g -Og -c /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile-main.c
-o /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile-main.o
# gcc -g -Og -o /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile
/tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile-foo.o
/tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile-main.o
# ./perf probe -x /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile foo
Failed to find symbol foo in /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile
Error: Failed to add events.
Perf probe fails to find symbol foo in the executable placed in
/tmp/perf-uprobe-different-cu-sh.XniNxNEVT7
Simple reproduce:
# mktemp -d /tmp/perf-checkXXXXXXXXXX
/tmp/perf-checkcWpuLRQI8j
# gcc -g -o test test.c
# cp test /tmp/perf-checkcWpuLRQI8j/
# nm /tmp/perf-checkcWpuLRQI8j/test | grep foo
00000000100006bc T foo
# ./perf probe -x /tmp/perf-checkcWpuLRQI8j/test foo
Failed to find symbol foo in /tmp/perf-checkcWpuLRQI8j/test
Error: Failed to add events.
But it works with any files like /tmp/perf/test. Only for
patterns with "/tmp/perf-", this fails.
Further debugging, commit 80d496be89 ("perf report: Add support
for profiling JIT generated code") added support for profiling JIT
generated code. This patch handles dso's of form
"/tmp/perf-$PID.map" .
The check used "if (strncmp(self->name, "/tmp/perf-", 10) == 0)"
to match "/tmp/perf-$PID.map". With this commit, any dso in
/tmp/perf- folder will be considered separately for processing
(not only JIT created map files ). Fix this by changing the
string pattern to check for "/tmp/perf-%d.map". Add a helper
function is_perf_pid_map_name to do this check. In "struct dso",
dso->long_name holds the long name of the dso file. Since the
/tmp/perf-$PID.map check uses the complete name, use dso___long_name for
the string name.
With the fix,
# ./perf test "test perf probe of function from different CU"
117: test perf probe of function from different CU : Ok
Fixes: 56cbeacf14 ("perf probe: Add test for regression introduced by switch to die_get_decl_file()")
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Reviewed-by: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: akanksha@linux.ibm.com
Cc: kjain@linux.ibm.com
Cc: maddy@linux.ibm.com
Cc: disgoel@linux.vnet.ibm.com
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240623064850.83720-1-atrajeev@linux.vnet.ibm.com
Merge series from David Lechner <dlechner@baylibre.com>:
In the IIO subsystem, we are finding that it is common to call
spi_optimize_message() during driver probe since the SPI message
doesn't change for the lifetime of the driver. This patch adds a
devm_spi_optimize_message() helper to simplify this common pattern.
[Why]
SMU firmware has not supported MALL PG.
[How]
Disable MALL PG and make it always on until SMU firmware is ready.
Signed-off-by: Li Ma <li.ma@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
dtschema v2024.4, v2024.5 and maybe earlier do not select device nodes for
given binding validation if the schema contains compatible list with
pattern and a const fallback. This leads to binding being a no-op - not
being applied at all. Issue should be fixed in the dtschema but for now
add a work-around do the binding can be used against DTS validation.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/600507/
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240623-qcom-adreno-dts-bindings-driver-v2-4-9496410de992@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
On a ~2000 CPU powerpc system, hard lockups have been observed in the
workqueue code when stop_machine runs (in this case due to CPU hotplug).
This is due to lots of CPUs spinning in multi_cpu_stop, calling
touch_nmi_watchdog() which ends up calling wq_watchdog_touch().
wq_watchdog_touch() writes to the global variable wq_watchdog_touched,
and that can find itself in the same cacheline as other important
workqueue data, which slows down operations to the point of lockups.
In the case of the following abridged trace, worker_pool_idr was in
the hot line, causing the lockups to always appear at idr_find.
watchdog: CPU 1125 self-detected hard LOCKUP @ idr_find
Call Trace:
get_work_pool
__queue_work
call_timer_fn
run_timer_softirq
__do_softirq
do_softirq_own_stack
irq_exit
timer_interrupt
decrementer_common_virt
* interrupt: 900 (timer) at multi_cpu_stop
multi_cpu_stop
cpu_stopper_thread
smpboot_thread_fn
kthread
Fix this by having wq_watchdog_touch() only write to the line if the
last time a touch was recorded exceeds 1/4 of the watchdog threshold.
Reported-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Warn in the case it is called with cpu == -1. This does not appear
to happen anywhere.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
If the device is missing, we get the following error:
qt1050 3-0041: ID -1340767592 not supported
Let's handle this situation and print more informative error
when reading of CHIP_ID fails:
qt1050 3-0041: Failed to read chip ID: -6
Fixes: cbebf5adde ("Input: qt1050 - add Microchip AT42QT1050 support")
Signed-off-by: Andrei Lalaev <andrei.lalaev@anton-paar.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20240617183018.916234-1-andrey.lalaev@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Dynamic Voltage and Frequency Scaling Resource Collector Regulators
are controlled with votes to the DVFSRC hardware.
This adds support for the regulators found in MT6873, MT8183, MT8192
and MT8195 SoCs.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20240610085735.147134-2-angelogioacchino.delregno@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The previous driver never worked, and never got even compiled because
it was missing the DVFSRC driver entirely, including needed neaders.
This is a full (or nearly full) refactoring of the MediaTek DVFSRC
controlled Regulators driver, retaining support for the MT6873, MT8183
and MT8192 SoC, and adding MT8195.
As part of the refactoring, this driver is now probed using its own
devicetree compatible, as this is a child of the main DVFSRC driver
and gets probed as a subnode of that.
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20240610085735.147134-7-angelogioacchino.delregno@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This driver never worked, and never got even compiled, because it was
missing the DVFSRC driver entirely, including headers it relies on!
In preparation of a full refactoring of this driver, remove it.
The Makefile and Kconfig entries are retained, as those are reused
as-is for the refactored code.
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20240610085735.147134-6-angelogioacchino.delregno@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
It seems that there is no definition for config IP_GRE, and it is not a
dependency of other configs, so remove it.
linux$ find -name Kconfig | xargs grep "IP_GRE"
<-- nothing
There is a IPV6_GRE config defined in net/ipv6/Kconfig. It only depends
on NET_IPGRE_DEMUX but not IP_GRE.
Signed-off-by: Yujie Liu <yujie.liu@intel.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20240624055539.2092322-1-yujie.liu@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use $(obj)/ instead of $(src)/ prefix when building C++ modules for
host, as explained in commit b1992c3772 ("kbuild: use $(src) instead
of $(srctree)/$(src) for source directory"). This fixes build failures
of 'xconfig':
$ make O=build/ xconfig
make[1]: Entering directory '/data/linux/kbuild-review/build'
GEN Makefile
make[3]: *** No rule to make target '../scripts/kconfig/qconf-moc.cc', needed by 'scripts/kconfig/qconf-moc.o'. Stop.
Fixes: b1992c3772 ("kbuild: use $(src) instead of $(srctree)/$(src) for source directory")
Reported-by: Rolf Eike Beer <eb@emlix.com>
Signed-off-by: Nicolas Schier <n.schier@avm.de>
Tested-by: Rolf Eike Beer <eb@emlix.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
When CONFIG_MODULES is disabled, 'make (bin)rpm-pkg' fails:
$ make allnoconfig binrpm-pkg
[ snip ]
error: File not found: .../linux/rpmbuild/BUILDROOT/kernel-6.10.0_rc3-1.i386/lib/modules/6.10.0-rc3/kernel
error: File not found: .../linux/rpmbuild/BUILDROOT/kernel-6.10.0_rc3-1.i386/lib/modules/6.10.0-rc3/modules.order
To make it work irrespective of CONFIG_MODULES, this commit specifies
the directory path, /lib/modules/%{KERNELRELEASE}, instead of individual
files.
However, doing so would cause new warnings:
warning: File listed twice: /lib/modules/6.10.0-rc3-dirty/modules.alias
warning: File listed twice: /lib/modules/6.10.0-rc3-dirty/modules.alias.bin
warning: File listed twice: /lib/modules/6.10.0-rc3-dirty/modules.builtin.alias.bin
warning: File listed twice: /lib/modules/6.10.0-rc3-dirty/modules.builtin.bin
warning: File listed twice: /lib/modules/6.10.0-rc3-dirty/modules.dep
warning: File listed twice: /lib/modules/6.10.0-rc3-dirty/modules.dep.bin
warning: File listed twice: /lib/modules/6.10.0-rc3-dirty/modules.devname
warning: File listed twice: /lib/modules/6.10.0-rc3-dirty/modules.softdep
warning: File listed twice: /lib/modules/6.10.0-rc3-dirty/modules.symbols
warning: File listed twice: /lib/modules/6.10.0-rc3-dirty/modules.symbols.bin
These files exist in /lib/modules/%{KERNELRELEASE} and are also explicitly
marked as %ghost.
Suppress depmod because depmod-generated files are not packaged.
Fixes: 615b3a3d2d ("kbuild: rpm-pkg: do not include depmod-generated files")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
The make deb-pkg target calls debian-orig which attempts to either
hard link the source .tar to the build-output location or copy the
source .tar to the build-output location. The test to determine
whether to ln or cp is incorrectly expanded by Make and consequently
always attempts to ln the source .tar. This fix corrects the escaping
of '$' so that the test is expanded by the shell rather than by Make
and appropriately selects between ln and cp.
Fixes: b44aa8c96e ("kbuild: deb-pkg: make .orig tarball a hard link if possible")
Signed-off-by: Thayne Harbaugh <thayne@mastodonlabs.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
The default INSTALL_MOD_DIR was changed from 'extra' to
'updates' in commit b74d7bb7ca ("kbuild: Modify default
INSTALL_MOD_DIR from extra to updates").
This commit updates the documentation to align with the
latest kernel.
Fixes: b74d7bb7ca ("kbuild: Modify default INSTALL_MOD_DIR from extra to updates")
Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
The compiled dtb files aren't executable, so install them with 0644 as their
permission mode, instead of defaulting to 0755 for the permission mode and
installing them with the executable bits set.
Some Linux distributions, including Debian, [1][2][3] already include fixes
in their kernel package build recipes to change the dtb file permissions to
0644 in their kernel packages. These changes, when additionally propagated
into the long-term kernel versions, will allow such distributions to remove
their downstream fixes.
[1] https://salsa.debian.org/kernel-team/linux/-/merge_requests/642
[2] https://salsa.debian.org/kernel-team/linux/-/merge_requests/749
[3] https://salsa.debian.org/kernel-team/linux/-/blob/debian/6.8.12-1/debian/rules.real#L193
Cc: Diederik de Haas <didi.debian@cknow.org>
Cc: <stable@vger.kernel.org>
Fixes: aefd80307a ("kbuild: refactor Makefile.dtbinst more")
Signed-off-by: Dragan Simic <dsimic@manjaro.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
