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-rw-r--r--tools/power/cpupower/lib/cpuidle.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/power/cpupower/lib/cpuidle.h b/tools/power/cpupower/lib/cpuidle.h
index 04eb3cfa6e42..2e10fead2e1e 100644
--- a/tools/power/cpupower/lib/cpuidle.h
+++ b/tools/power/cpupower/lib/cpuidle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __CPUPOWER_CPUIDLE_H__
#define __CPUPOWER_CPUIDLE_H__