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-rw-r--r--mm/cma.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/cma.h b/mm/cma.h
index 49861286279d..33c0b517733c 100644
--- a/mm/cma.h
+++ b/mm/cma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __MM_CMA_H__
#define __MM_CMA_H__