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-rw-r--r--tools/testing/selftests/intel_pstate/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/intel_pstate/Makefile b/tools/testing/selftests/intel_pstate/Makefile
index a97e24edde39..5a3f7d37e912 100644
--- a/tools/testing/selftests/intel_pstate/Makefile
+++ b/tools/testing/selftests/intel_pstate/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
CFLAGS := $(CFLAGS) -Wall -D_GNU_SOURCE
LDLIBS := $(LDLIBS) -lm