- /* Shouldn't be here. This condition is tricky because it has to take
- * into account boff > 0 due to persist timeout. */
- if ((tc->rto_boff == 0 && tc->snd_una == tc->snd_nxt)
- || (tc->rto_boff > 0 && seq_geq (tc->snd_una, tc->snd_congestion)
- && !tcp_flight_size (tc)))