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tcp: small optimization in tcp_v6_send_check()

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For TCP flows, inet6_sk(sk)->saddr has the same value
than sk->sk_v6_rcv_saddr.

Using sk->sk_v6_rcv_saddr increases data locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2021-11-15 11:02:32 -08:00 committed by David S. Miller
parent 283c6b54bc
commit 3735440200
1 changed files with 1 additions and 3 deletions
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4
net/ipv6/tcp_ipv6.c
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@ -1893,9 +1893,7 @@ static struct timewait_sock_ops tcp6_timewait_sock_ops = {
INDIRECT_CALLABLE_SCOPE void tcp_v6_send_check(struct sock *sk, struct sk_buff *skb)
{
struct ipv6_pinfo *np = inet6_sk(sk);
__tcp_v6_send_check(skb, &np->saddr, &sk->sk_v6_daddr);
__tcp_v6_send_check(skb, &sk->sk_v6_rcv_saddr, &sk->sk_v6_daddr);
}
const struct inet_connection_sock_af_ops ipv6_specific = {