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-rw-r--r--net/ipv6/fou6.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv6/fou6.c b/net/ipv6/fou6.c
index ec4e2ed95f36..091f94184dc1 100644
--- a/net/ipv6/fou6.c
+++ b/net/ipv6/fou6.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/socket.h>