tcp: kill eff_sacks "cache", the sole user can calculate itself

Also fixes insignificant bug that would cause sending of stale
SACK block (would occur in some corner cases).

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index f67effbb102b..bb3d8b35f19a 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -434,9 +434,8 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req,
                 newtp->rx_opt.saw_tstamp = 0;
 
                 newtp->rx_opt.dsack = 0;
-                newtp->rx_opt.eff_sacks = 0;
-
                 newtp->rx_opt.num_sacks = 0;
+
                 newtp->urg_data = 0;
 
                 if (sock_flag(newsk, SOCK_KEEPOPEN))