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-rw-r--r--arch/s390/lib/spinlock.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c
index 34e30b9ea234..2d0af8667695 100644
--- a/arch/s390/lib/spinlock.c
+++ b/arch/s390/lib/spinlock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Out of line spinlock code.
*