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-rw-r--r--tools/perf/tests/perf-hooks.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/tests/perf-hooks.c b/tools/perf/tests/perf-hooks.c
index bf2517d6de70..a693bcf017ea 100644
--- a/tools/perf/tests/perf-hooks.c
+++ b/tools/perf/tests/perf-hooks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <signal.h>
#include <stdlib.h>