1 files changed, 23 insertions, 16 deletions

diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index c05c425c2389..f185cbcda114 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -49,6 +49,13 @@
 
 int ip6_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
 {
+	/* if ingress device is enslaved to an L3 master device pass the
+	 * skb to its handler for processing
+	 */
+	skb = l3mdev_ip6_rcv(skb);
+	if (!skb)
+		return NET_RX_SUCCESS;
+
 	if (net->ipv4.sysctl_ip_early_demux && !skb_dst(skb) && skb->sk == NULL) {
 		const struct inet6_protocol *ipprot;
 
@@ -78,11 +85,11 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 
 	idev = __in6_dev_get(skb->dev);
 
-	IP6_UPD_PO_STATS_BH(net, idev, IPSTATS_MIB_IN, skb->len);
+	__IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_IN, skb->len);
 
 	if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL ||
 	    !idev || unlikely(idev->cnf.disable_ipv6)) {
-		IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INDISCARDS);
+		__IP6_INC_STATS(net, idev, IPSTATS_MIB_INDISCARDS);
 		goto drop;
 	}
 
@@ -109,10 +116,10 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 	if (hdr->version != 6)
 		goto err;
 
-	IP6_ADD_STATS_BH(net, idev,
-			 IPSTATS_MIB_NOECTPKTS +
+	__IP6_ADD_STATS(net, idev,
+			IPSTATS_MIB_NOECTPKTS +
 				(ipv6_get_dsfield(hdr) & INET_ECN_MASK),
-			 max_t(unsigned short, 1, skb_shinfo(skb)->gso_segs));
+			max_t(unsigned short, 1, skb_shinfo(skb)->gso_segs));
 	/*
 	 * RFC4291 2.5.3
 	 * A packet received on an interface with a destination address
@@ -169,12 +176,12 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 	/* pkt_len may be zero if Jumbo payload option is present */
 	if (pkt_len || hdr->nexthdr != NEXTHDR_HOP) {
 		if (pkt_len + sizeof(struct ipv6hdr) > skb->len) {
-			IP6_INC_STATS_BH(net,
-					 idev, IPSTATS_MIB_INTRUNCATEDPKTS);
+			__IP6_INC_STATS(net,
+					idev, IPSTATS_MIB_INTRUNCATEDPKTS);
 			goto drop;
 		}
 		if (pskb_trim_rcsum(skb, pkt_len + sizeof(struct ipv6hdr))) {
-			IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INHDRERRORS);
+			__IP6_INC_STATS(net, idev, IPSTATS_MIB_INHDRERRORS);
 			goto drop;
 		}
 		hdr = ipv6_hdr(skb);
@@ -182,7 +189,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 
 	if (hdr->nexthdr == NEXTHDR_HOP) {
 		if (ipv6_parse_hopopts(skb) < 0) {
-			IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INHDRERRORS);
+			__IP6_INC_STATS(net, idev, IPSTATS_MIB_INHDRERRORS);
 			rcu_read_unlock();
 			return NET_RX_DROP;
 		}
@@ -197,7 +204,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 		       net, NULL, skb, dev, NULL,
 		       ip6_rcv_finish);
 err:
-	IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INHDRERRORS);
+	__IP6_INC_STATS(net, idev, IPSTATS_MIB_INHDRERRORS);
 drop:
 	rcu_read_unlock();
 	kfree_skb(skb);
@@ -259,18 +266,18 @@ resubmit:
 		if (ret > 0)
 			goto resubmit;
 		else if (ret == 0)
-			IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INDELIVERS);
+			__IP6_INC_STATS(net, idev, IPSTATS_MIB_INDELIVERS);
 	} else {
 		if (!raw) {
 			if (xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
-				IP6_INC_STATS_BH(net, idev,
-						 IPSTATS_MIB_INUNKNOWNPROTOS);
+				__IP6_INC_STATS(net, idev,
+						IPSTATS_MIB_INUNKNOWNPROTOS);
 				icmpv6_send(skb, ICMPV6_PARAMPROB,
 					    ICMPV6_UNK_NEXTHDR, nhoff);
 			}
 			kfree_skb(skb);
 		} else {
-			IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INDELIVERS);
+			__IP6_INC_STATS(net, idev, IPSTATS_MIB_INDELIVERS);
 			consume_skb(skb);
 		}
 	}
@@ -278,7 +285,7 @@ resubmit:
 	return 0;
 
 discard:
-	IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INDISCARDS);
+	__IP6_INC_STATS(net, idev, IPSTATS_MIB_INDISCARDS);
 	rcu_read_unlock();
 	kfree_skb(skb);
 	return 0;
@@ -297,7 +304,7 @@ int ip6_mc_input(struct sk_buff *skb)
 	const struct ipv6hdr *hdr;
 	bool deliver;
 
-	IP6_UPD_PO_STATS_BH(dev_net(skb_dst(skb)->dev),
+	__IP6_UPD_PO_STATS(dev_net(skb_dst(skb)->dev),
 			 ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_INMCAST,
 			 skb->len);