On Tue, 19 Jul 2022 21:01:37 +0800 LemmyHuang wrote:> - if (before(tp->lsndtime, icsk->icsk_ack.lrcvtime) &&> + if ((tp->lsndtime <= icsk->icsk_ack.lrcvtime) &&Are you sure you don't need to take care of the values wrapping?before() does that. You may want !after() if you want to allow equal.