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-rw-r--r--arch/arm/kernel/perf_callchain.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/kernel/perf_callchain.c b/arch/arm/kernel/perf_callchain.c
index 22bf1f64d99a..08e43a32a693 100644
--- a/arch/arm/kernel/perf_callchain.c
+++ b/arch/arm/kernel/perf_callchain.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* ARM callchain support
*