From: Neal Cardwell <ncardwell@google.com>
Date: Tue, 20 Sep 2016 03:39:19 +0000 (-0400)
Subject: tcp: export tcp_mss_to_mtu() for congestion control modules
X-Git-Tag: v5.15~12760^2~120^2~4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=556c6b46d194cc0dbb6a5b22f1d2bbc699c86d8e;p=platform%2Fkernel%2Flinux-starfive.git

tcp: export tcp_mss_to_mtu() for congestion control modules

Export tcp_mss_to_mtu(), so that congestion control modules can use
this to help calculate a pacing rate.

Signed-off-by: Van Jacobson <vanj@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Nandita Dukkipati <nanditad@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 0bf3d48..7d025a7 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1362,6 +1362,7 @@ int tcp_mss_to_mtu(struct sock *sk, int mss)
 	}
 	return mtu;
 }
+EXPORT_SYMBOL(tcp_mss_to_mtu);
 
 /* MTU probing init per socket */
 void tcp_mtup_init(struct sock *sk)