1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h
index d68391a9b9f3..f0d423300d84 100644
--- a/include/linux/xfrm.h
+++ b/include/linux/xfrm.h
@@ -196,6 +196,7 @@ struct xfrm_usersa_info {
         __u8                            flags;
 #define XFRM_STATE_NOECN        1
 #define XFRM_STATE_DECAP_DSCP   2
+#define XFRM_STATE_NOPMTUDISC   4
 };
 
 struct xfrm_usersa_id {