From 373544020024668ea552a7699c9c9f100b6bc9d9 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 15 Nov 2021 11:02:32 -0800 Subject: [PATCH] tcp: small optimization in tcp_v6_send_check() 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 Signed-off-by: David S. Miller --- net/ipv6/tcp_ipv6.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 551fce49841d7..1f1a89f096de9 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -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 = { -- 2.30.2