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authorYafang Shao <laoar.shao@gmail.com>2018-05-29 23:27:31 +0800
committerDavid S. Miller <davem@davemloft.net>2018-05-31 13:20:47 -0400
commit3d97d88e8091f3501e016f6b4ce45a32c4b8f2f6 (patch)
treed5337f3bf77ad4677098f20351e91af3af325adf /net/ipv6/tcp_ipv6.c
parent0c3a4cf84fb9ab17a4c9d3b34cfd6098887dd998 (diff)
downloadlinux-3d97d88e8091f3501e016f6b4ce45a32c4b8f2f6.tar.bz2
tcp: minor optimization around tcp_hdr() usage in receive path
This is additional to the commit ea1627c20c34 ("tcp: minor optimizations around tcp_hdr() usage"). At this point, skb->data is same with tcp_hdr() as tcp header has not been pulled yet. So use the less expensive one to get the tcp header. Remove the third parameter of tcp_rcv_established() and put it into the function body. Furthermore, the local variables are listed as a reverse christmas tree :) Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
-rw-r--r--net/ipv6/tcp_ipv6.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 7d47c2b550a9..8764a63abd91 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1322,7 +1322,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
}
}
- tcp_rcv_established(sk, skb, tcp_hdr(skb));
+ tcp_rcv_established(sk, skb);
if (opt_skb)
goto ipv6_pktoptions;
return 0;