From c47078d6a33fd78d882200cdaacbcfcd63318234 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sat, 7 Jul 2018 23:15:56 -0700 Subject: tcp: remove redundant SOCK_DONE checks In both tcp_splice_read() and tcp_recvmsg(), we already test sock_flag(sk, SOCK_DONE) right before evaluating sk->sk_state, so "!sock_flag(sk, SOCK_DONE)" is always true. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/tcp.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) (limited to 'net/ipv4') diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 850dc8f15afc..c4082cd50257 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -817,8 +817,7 @@ ssize_t tcp_splice_read(struct socket *sock, loff_t *ppos, * This occurs when user tries to read * from never connected socket. */ - if (!sock_flag(sk, SOCK_DONE)) - ret = -ENOTCONN; + ret = -ENOTCONN; break; } if (!timeo) { @@ -2042,13 +2041,10 @@ int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock, break; if (sk->sk_state == TCP_CLOSE) { - if (!sock_flag(sk, SOCK_DONE)) { - /* This occurs when user tries to read - * from never connected socket. - */ - copied = -ENOTCONN; - break; - } + /* This occurs when user tries to read + * from never connected socket. + */ + copied = -ENOTCONN; break; } -- cgit v1.2.1