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Diffstat (limited to 'tools/arch/s390/include/asm/barrier.h')
-rw-r--r--tools/arch/s390/include/asm/barrier.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/arch/s390/include/asm/barrier.h b/tools/arch/s390/include/asm/barrier.h
index f85141266b92..5030c99f47d2 100644
--- a/tools/arch/s390/include/asm/barrier.h
+++ b/tools/arch/s390/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copied from the kernel sources:
*