This is a note to let you know that I've just added the patch titled
perf off_cpu: Fix a typo in BTF tracepoint name, it should be 'btf_trace_sched_switch'
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
perf-off_cpu-fix-a-typo-in-btf-tracepoint-name-it-sh.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit b8c1d050a0f2833deba71481fcdea769e1558b3e
Author: Namhyung Kim <namhyung@xxxxxxxxxx>
Date: Thu Dec 8 10:26:36 2022 -0800
perf off_cpu: Fix a typo in BTF tracepoint name, it should be 'btf_trace_sched_switch'
[ Upstream commit 167b266bf66c5b93171011ef9d1f09b070c2c537 ]
In BTF, tracepoint definitions have the "btf_trace_" prefix. The
off-cpu profiler needs to check the signature of the sched_switch event
using that definition. But there's a typo (s/bpf/btf/) so it failed
always.
Fixes: b36888f71c8542cd ("perf record: Handle argument change in sched_switch")
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: bpf@xxxxxxxxxxxxxxx
Cc: Ian Rogers <irogers@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Song Liu <song@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221208182636.524139-1-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/tools/perf/util/bpf_off_cpu.c b/tools/perf/util/bpf_off_cpu.c
index c257813e674e..01f70b8e705a 100644
--- a/tools/perf/util/bpf_off_cpu.c
+++ b/tools/perf/util/bpf_off_cpu.c
@@ -102,7 +102,7 @@ static void check_sched_switch_args(void)
const struct btf_type *t1, *t2, *t3;
u32 type_id;
- type_id = btf__find_by_name_kind(btf, "bpf_trace_sched_switch",
+ type_id = btf__find_by_name_kind(btf, "btf_trace_sched_switch",
BTF_KIND_TYPEDEF);
if ((s32)type_id < 0)
return;
