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-rw-r--r--tools/perf/builtin-lock.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 0253184b3b588..6efa9d646637f 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -1501,7 +1501,7 @@ static const struct evsel_str_handler contention_tracepoints[] = {
{ "lock:contention_end", evsel__process_contention_end, },
};
-static int process_event_update(struct perf_tool *tool,
+static int process_event_update(const struct perf_tool *tool,
union perf_event *event,
struct evlist **pevlist)
{
@@ -1520,7 +1520,7 @@ static int process_event_update(struct perf_tool *tool,
typedef int (*tracepoint_handler)(struct evsel *evsel,
struct perf_sample *sample);
-static int process_sample_event(struct perf_tool *tool __maybe_unused,
+static int process_sample_event(const struct perf_tool *tool __maybe_unused,
union perf_event *event,
struct perf_sample *sample,
struct evsel *evsel,