Upcoming tcp_cdg uses tcp_enter_cwr() to initiate PRR. Export this
function so that CDG can be compiled as a module.

Cc: Eric Dumazet <[email protected]>
Cc: Yuchung Cheng <[email protected]>
Cc: Stephen Hemminger <[email protected]>
Cc: Neal Cardwell <[email protected]>
Cc: David Hayes <[email protected]>
Cc: Andreas Petlund <[email protected]>
Cc: Dave Taht <[email protected]>
Cc: Nicolas Kuhn <[email protected]>
Signed-off-by: Kenneth Klette Jonassen <[email protected]>
---
 net/ipv4/tcp_input.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 15c4536..d4f76ab 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2552,6 +2552,7 @@ void tcp_enter_cwr(struct sock *sk)
                tcp_set_ca_state(sk, TCP_CA_CWR);
        }
 }
+EXPORT_SYMBOL(tcp_enter_cwr);
 
 static void tcp_try_keep_open(struct sock *sk)
 {
-- 
2.1.0

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