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-rw-r--r--arch/arm/kernel/io.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/kernel/io.c b/arch/arm/kernel/io.c
index eedefe050022..60b621295d6c 100644
--- a/arch/arm/kernel/io.c
+++ b/arch/arm/kernel/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/export.h>
#include <linux/types.h>
#include <linux/io.h>