inet: toss struct net initialization around

Some places, that deal with ICMP statistics already have where
to get a struct net from, but use it directly, without declaring
a separate variable on the stack.

Since I will need this net soon, I declare a struct net on the
stack and use it in the existing places in a separate patch not
to spoil the future ones.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 4300bcf2ceaf..ca41b77f3f32 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -343,13 +343,14 @@ void tcp_v4_err(struct sk_buff *skb, u32 info)
         struct sock *sk;
         __u32 seq;
         int err;
+        struct net *net = dev_net(skb->dev);
 
         if (skb->len < (iph->ihl << 2) + 8) {
                 ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
                 return;
         }
 
-        sk = inet_lookup(dev_net(skb->dev), &tcp_hashinfo, iph->daddr, th->dest,
+        sk = inet_lookup(net, &tcp_hashinfo, iph->daddr, th->dest,
                         iph->saddr, th->source, inet_iif(skb));
         if (!sk) {
                 ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);