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-rw-r--r--include/printk.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/printk.h b/include/printk.h
index b0d5d09f83..6a027175ab 100644
--- a/include/printk.h
+++ b/include/printk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __PRINTK_H
#define __PRINTK_H