From: Eric Dumazet <edumazet@google.com>
Date: Thu, 17 Jan 2019 19:23:38 +0000 (-0800)
Subject: tcp: do not clear urg_data in tcp_create_openreq_child
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=5d836764620dfa3f243bdf5a678db300341195ef;p=linux.git

tcp: do not clear urg_data in tcp_create_openreq_child

All listeners have this field cleared already, since tcp_disconnect()
clears it and newly created sockets have also a zero value here.

So a clone will inherit a zero value here.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index ca96e7da99b6e..2747aa72b8e2b 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -501,8 +501,6 @@ struct sock *tcp_create_openreq_child(const struct sock *sk,
 	newtp->rx_opt.dsack = 0;
 	newtp->rx_opt.num_sacks = 0;
 
-	newtp->urg_data = 0;
-
 	if (sock_flag(newsk, SOCK_KEEPOPEN))
 		inet_csk_reset_keepalive_timer(newsk,
 					       keepalive_time_when(newtp));