[IPSEC]: Move all calls to xfrm_audit_state_icvfail to xfrm_input

Let's nip the code duplication in the bud :)
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv4/ah4.c

@@ -179,10 +179,8 @@ static int ah_input(struct xfrm_state *x, struct sk_buff *skb)
 		err = ah_mac_digest(ahp, skb, ah->auth_data);
 		if (err)
 			goto unlock;
-		if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len)) {
-			xfrm_audit_state_icvfail(x, skb, IPPROTO_AH);
+		if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len))
 			err = -EBADMSG;
-		}
 	}
 unlock:
 	spin_unlock(&x->lock);

net/ipv4/esp4.c

@@ -191,7 +191,6 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb)
 			BUG();
 
 		if (unlikely(memcmp(esp->auth.work_icv, sum, alen))) {
-			xfrm_audit_state_icvfail(x, skb, IPPROTO_ESP);
 			err = -EBADMSG;
 			goto unlock;
 		}

net/ipv6/ah6.c

@@ -380,10 +380,8 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
 		err = ah_mac_digest(ahp, skb, ah->auth_data);
 		if (err)
 			goto unlock;
-		if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len)) {
-			xfrm_audit_state_icvfail(x, skb, IPPROTO_AH);
+		if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len))
 			err = -EBADMSG;
-		}
 	}
 unlock:
 	spin_unlock(&x->lock);

net/ipv6/esp6.c

@@ -186,7 +186,6 @@ static int esp6_input(struct xfrm_state *x, struct sk_buff *skb)
 			BUG();
 
 		if (unlikely(memcmp(esp->auth.work_icv, sum, alen))) {
-			xfrm_audit_state_icvfail(x, skb, IPPROTO_ESP);
 			ret = -EBADMSG;
 			goto unlock;
 		}

net/xfrm/xfrm_input.c

@@ -186,8 +186,11 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
 resume:
 		spin_lock(&x->lock);
 		if (nexthdr <= 0) {
-			if (nexthdr == -EBADMSG)
+			if (nexthdr == -EBADMSG) {
+				xfrm_audit_state_icvfail(x, skb,
+							 x->type->proto);
 				x->stats.integrity_failed++;
+			}
 			XFRM_INC_STATS(LINUX_MIB_XFRMINSTATEPROTOERROR);
 			goto drop_unlock;
 		}