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tcp: remove indirect calls for icsk->icsk_af_ops->queue_xmit

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Mitigate RETPOLINE costs in __tcp_transmit_skb()
by using INDIRECT_CALL_INET() wrapper.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2020-06-19 12:12:34 -07:00
committed by David S. Miller
parent 902053f17d
commit 05e22e8395
4 changed files with 14 additions and 6 deletions
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6
net/ipv4/ip_output.c
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@@ -539,6 +539,12 @@ no_route:
}
EXPORT_SYMBOL(__ip_queue_xmit);
int ip_queue_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl)
{
return __ip_queue_xmit(sk, skb, fl, inet_sk(sk)->tos);
}
EXPORT_SYMBOL(ip_queue_xmit);
static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from)
{
to->pkt_type = from->pkt_type;