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-rw-r--r--tools/perf/util/annotate.c3
-rw-r--r--tools/perf/util/bpf_skel/lock_contention.bpf.c5
2 files changed, 7 insertions, 1 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index ac002d907d81..50ca92255ff6 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -2461,6 +2461,9 @@ int symbol__annotate(struct map_symbol *ms, struct evsel *evsel,
if (parch)
*parch = arch;
+ if (!list_empty(&notes->src->source))
+ return 0;
+
args.arch = arch;
args.ms = *ms;
if (annotate_opts.full_addr)
diff --git a/tools/perf/util/bpf_skel/lock_contention.bpf.c b/tools/perf/util/bpf_skel/lock_contention.bpf.c
index fb54bd38e7d0..d931a898c434 100644
--- a/tools/perf/util/bpf_skel/lock_contention.bpf.c
+++ b/tools/perf/util/bpf_skel/lock_contention.bpf.c
@@ -284,6 +284,7 @@ static inline __u32 check_lock_type(__u64 lock, __u32 flags)
struct task_struct *curr;
struct mm_struct___old *mm_old;
struct mm_struct___new *mm_new;
+ struct sighand_struct *sighand;
switch (flags) {
case LCB_F_READ: /* rwsem */
@@ -305,7 +306,9 @@ static inline __u32 check_lock_type(__u64 lock, __u32 flags)
break;
case LCB_F_SPIN: /* spinlock */
curr = bpf_get_current_task_btf();
- if (&curr->sighand->siglock == (void *)lock)
+ sighand = curr->sighand;
+
+ if (sighand && &sighand->siglock == (void *)lock)
return LCD_F_SIGHAND_LOCK;
break;
default: