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dccp: Evaluate ip_hdr() only once in dccp_v4_route_skb().

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This also works around a bogus gcc warning generated by an
upcoming patch from Eric Dumazet that rearranges the layout
of struct flowi4.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-12-01 13:28:34 -05:00
parent fa17a019c8
commit 898f73585b
1 changed files with 3 additions and 2 deletions
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5
net/dccp/ipv4.c
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@ -474,10 +474,11 @@ static struct dst_entry* dccp_v4_route_skb(struct net *net, struct sock *sk,
struct sk_buff *skb)
{
struct rtable *rt;
const struct iphdr *iph = ip_hdr(skb);
struct flowi4 fl4 = {
.flowi4_oif = skb_rtable(skb)->rt_iif,
.daddr = ip_hdr(skb)->saddr,
.saddr = ip_hdr(skb)->daddr,
.daddr = iph->saddr,
.saddr = iph->daddr,
.flowi4_tos = RT_CONN_FLAGS(sk),
.flowi4_proto = sk->sk_protocol,
.fl4_sport = dccp_hdr(skb)->dccph_dport,