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-rw-r--r--lib/once.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/once.c b/lib/once.c
index 831c5a6b0bb2..8b7d6235217e 100644
--- a/lib/once.c
+++ b/lib/once.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/once.h>