[IPSEC]: Unexport xfrm_replay_notify

Now that the only callers of xfrm_replay_notify are in xfrm, we can remove
the export.

This patch also removes xfrm_aevent_doreplay since it's now called in just
one spot.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/xfrm.h

@@ -1163,12 +1163,6 @@ static inline int xfrm_aevent_is_on(void)
 	return ret;
 }
 
-static inline void xfrm_aevent_doreplay(struct xfrm_state *x)
-{
-	if (xfrm_aevent_is_on())
-		xfrm_replay_notify(x, XFRM_REPLAY_UPDATE);
-}
-
 #ifdef CONFIG_XFRM_MIGRATE
 static inline struct xfrm_algo *xfrm_algo_clone(struct xfrm_algo *orig)
 {

net/xfrm/xfrm_output.c

@@ -60,7 +60,8 @@ int xfrm_output(struct sk_buff *skb)
 
 		if (x->type->flags & XFRM_TYPE_REPLAY_PROT) {
 			XFRM_SKB_CB(skb)->seq = ++x->replay.oseq;
-			xfrm_aevent_doreplay(x);
+			if (xfrm_aevent_is_on())
+				xfrm_replay_notify(x, XFRM_REPLAY_UPDATE);
 		}
 
 		err = x->mode->output(x, skb);

net/xfrm/xfrm_state.c

@@ -1397,7 +1397,6 @@ void xfrm_replay_notify(struct xfrm_state *x, int event)
 	    !mod_timer(&x->rtimer, jiffies + x->replay_maxage))
 		x->xflags &= ~XFRM_TIME_DEFER;
 }
-EXPORT_SYMBOL(xfrm_replay_notify);
 
 static void xfrm_replay_timer_handler(unsigned long data)
 {