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-rw-r--r--lib/checksum.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/checksum.h b/lib/checksum.h
index 508c3f3..2856a0d 100644
--- a/lib/checksum.h
+++ b/lib/checksum.h
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
#ifndef _FRR_CHECKSUM_H
#define _FRR_CHECKSUM_H