net: rename skb->iif to skb->skb_iif

To help grep games, rename iif to skb_iif

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index bb230d5..83a4aad 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4085,7 +4085,7 @@
 	char *addrp;
 
 	COMMON_AUDIT_DATA_INIT(&ad, NET);
-	ad.u.net.netif = skb->iif;
+	ad.u.net.netif = skb->skb_iif;
 	ad.u.net.family = family;
 	err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL);
 	if (err)
@@ -4147,7 +4147,7 @@
 		return 0;
 
 	COMMON_AUDIT_DATA_INIT(&ad, NET);
-	ad.u.net.netif = skb->iif;
+	ad.u.net.netif = skb->skb_iif;
 	ad.u.net.family = family;
 	err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL);
 	if (err)
@@ -4159,7 +4159,7 @@
 		err = selinux_skb_peerlbl_sid(skb, family, &peer_sid);
 		if (err)
 			return err;
-		err = selinux_inet_sys_rcv_skb(skb->iif, addrp, family,
+		err = selinux_inet_sys_rcv_skb(skb->skb_iif, addrp, family,
 					       peer_sid, &ad);
 		if (err) {
 			selinux_netlbl_err(skb, err, 0);