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-rw-r--r--mm/percpu-internal.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/percpu-internal.h b/mm/percpu-internal.h
index 7065faf74b46..b1739dc06b73 100644
--- a/mm/percpu-internal.h
+++ b/mm/percpu-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _MM_PERCPU_INTERNAL_H
#define _MM_PERCPU_INTERNAL_H