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-rw-r--r--net/ipv4/tcp_input.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 677419d0c9a..3e98b57578d 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2239,6 +2239,7 @@ static int tcp_ack_update_window(struct sock *sk, struct tcp_sock *tp,
/* Note, it is the only place, where
* fast path is recovered for sending TCP.
*/
+ tp->pred_flags = 0;
tcp_fast_path_check(sk, tp);
if (nwin > tp->max_window) {