From: Eric Dumazet <edumazet@google.com>
Date: Thu, 17 Jan 2019 19:23:32 +0000 (-0800)
Subject: tcp: do not set snd_ssthresh in tcp_create_openreq_child()
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=b84235e291045799e100a40c485439182087bae9;p=openwrt%2Fstaging%2Fblogic.git

tcp: do not set snd_ssthresh in tcp_create_openreq_child()

New sockets get the field set to TCP_INFINITE_SSTHRESH in tcp_init_sock()
In case a socket had this field changed and transitions to TCP_LISTEN
state, tcp_disconnect() also makes sure snd_ssthresh is set to
TCP_INFINITE_SSTHRESH.

So a listener has this field set to TCP_INFINITE_SSTHRESH already.

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 12affb7864d9..0cffa5937b12 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -488,7 +488,6 @@ struct sock *tcp_create_openreq_child(const struct sock *sk,
 	newtp->packets_out = 0;
 	newtp->retrans_out = 0;
 	newtp->sacked_out = 0;
-	newtp->snd_ssthresh = TCP_INFINITE_SSTHRESH;
 	newtp->tlp_high_seq = 0;
 	newtp->lsndtime = tcp_jiffies32;
 	newsk->sk_txhash = treq->txhash;