diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 41def09..42a8c32 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1427,6 +1427,7 @@
 extern int xfrm_state_flush(struct net *net, u8 proto, struct xfrm_audit *audit_info);
 extern void xfrm_sad_getinfo(struct net *net, struct xfrmk_sadinfo *si);
 extern void xfrm_spd_getinfo(struct net *net, struct xfrmk_spdinfo *si);
+extern u32 xfrm_replay_seqhi(struct xfrm_state *x, __be32 net_seq);
 extern int xfrm_init_replay(struct xfrm_state *x);
 extern int xfrm_state_mtu(struct xfrm_state *x, int mtu);
 extern int xfrm_init_state(struct xfrm_state *x);