1 files changed, 1 insertions, 0 deletions

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 2c6797134553..cfa51cfd2d99 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3633,6 +3633,7 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
 
         delivered = tp->delivered - delivered;  /* freshly ACKed or SACKed */
         lost = tp->lost - lost;                 /* freshly marked lost */
+        rs.is_ack_delayed = !!(flag & FLAG_ACK_MAYBE_DELAYED);
         tcp_rate_gen(sk, delivered, lost, is_sack_reneg, sack_state.rate);
         tcp_cong_control(sk, ack, delivered, flag, sack_state.rate);
         tcp_xmit_recovery(sk, rexmit);