inet: prepare net on the stack for NET accounting macros

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/dccp/ipv6.c

@@ -93,8 +93,9 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	struct sock *sk;
 	int err;
 	__u64 seq;
+	struct net *net = dev_net(skb->dev);
 
-	sk = inet6_lookup(dev_net(skb->dev), &dccp_hashinfo,
+	sk = inet6_lookup(net, &dccp_hashinfo,
 			&hdr->daddr, dh->dccph_dport,
 			&hdr->saddr, dh->dccph_sport, inet6_iif(skb));
 

net/ipv4/arp.c

@@ -421,8 +421,9 @@ static int arp_filter(__be32 sip, __be32 tip, struct net_device *dev)
 	struct rtable *rt;
 	int flag = 0;
 	/*unsigned long now; */
+	struct net *net = dev_net(dev);
 
-	if (ip_route_output_key(dev_net(dev), &rt, &fl) < 0)
+	if (ip_route_output_key(net, &rt, &fl) < 0)
 		return 1;
 	if (rt->u.dst.dev != dev) {
 		NET_INC_STATS_BH(LINUX_MIB_ARPFILTER);

net/ipv6/tcp_ipv6.c

@@ -323,8 +323,9 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	int err;
 	struct tcp_sock *tp;
 	__u32 seq;
+	struct net *net = dev_net(skb->dev);
 
-	sk = inet6_lookup(dev_net(skb->dev), &tcp_hashinfo, &hdr->daddr,
+	sk = inet6_lookup(net, &tcp_hashinfo, &hdr->daddr,
 			th->dest, &hdr->saddr, th->source, skb->dev->ifindex);
 
 	if (sk == NULL) {