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>

include/linux/skbuff.h

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 63f4742..89eed8c 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -299,7 +299,7 @@
  *	@nfctinfo: Relationship of this skb to the connection
  *	@nfct_reasm: netfilter conntrack re-assembly pointer
  *	@nf_bridge: Saved data about a bridged frame - see br_netfilter.c
- *	@iif: ifindex of device we arrived on
+ *	@skb_iif: ifindex of device we arrived on
  *	@queue_mapping: Queue mapping for multiqueue devices
  *	@tc_index: Traffic control index
  *	@tc_verd: traffic control verdict
@@ -366,7 +366,7 @@
 	struct nf_bridge_info	*nf_bridge;
 #endif
 
-	int			iif;
+	int			skb_iif;
 #ifdef CONFIG_NET_SCHED
 	__u16			tc_index;	/* traffic control index */
 #ifdef CONFIG_NET_CLS_ACT

include/net/pkt_cls.h

diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 3dd210d..dd3031a 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -343,9 +343,9 @@
 	struct net_device *dev;
 
 	if (indev[0]) {
-		if  (!skb->iif)
+		if  (!skb->skb_iif)
 			return 0;
-		dev = __dev_get_by_index(dev_net(skb->dev), skb->iif);
+		dev = __dev_get_by_index(dev_net(skb->dev), skb->skb_iif);
 		if (!dev || strcmp(indev, dev->name))
 			return 0;
 	}