[IPSEC]: Sync series - fast path

Fast path sequence updates that will generate ipsec async
events

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index aed537f..e16d8b4 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -97,6 +97,7 @@
 	ah->reserved = 0;
 	ah->spi = x->id.spi;
 	ah->seq_no = htonl(++x->replay.oseq);
+	xfrm_aevent_doreplay(x);
 	ahp->icv(ahp, skb, ah->auth_data);
 
 	top_iph->tos = iph->tos;