857 			 tp->undo_marker ? tp->undo_retrans : 0);  in tcp_update_reordering()
1011 	if (!is_dsack || !tp->undo_marker)  in tcp_is_sackblock_valid()
1018 	if (!before(start_seq, tp->undo_marker))  in tcp_is_sackblock_valid()
1022 	if (!after(end_seq, tp->undo_marker))  in tcp_is_sackblock_valid()
1122 	if (dup_sack && tp->undo_marker && tp->undo_retrans > 0 &&  in tcp_check_dsack()
1124 	    after(end_seq_0, tp->undo_marker))  in tcp_check_dsack()
1203 		if (tp->undo_marker && tp->undo_retrans > 0 &&  in tcp_sacktag_one()
1204 		    after(end_seq, tp->undo_marker))  in tcp_sacktag_one()
1692 				if (!tp->undo_marker)  in tcp_sacktag_write_queue()
1824 	    ((inet_csk(sk)->icsk_ca_state != TCP_CA_Loss) || tp->undo_marker))  in tcp_sacktag_write_queue()
1905 	tp->undo_marker = 0;  in tcp_clear_retrans()
1913 	tp->undo_marker = tp->snd_una;  in tcp_init_undo()
2409 	tp->undo_marker = 0;  in tcp_undo_cwnd_reduction()
2414 	return tp->undo_marker && (!tp->undo_retrans || tcp_packet_delayed(tp));  in tcp_may_undo()
2455 	if (tp->undo_marker && !tp->undo_retrans) {  in tcp_try_undo_dsack()
2539 	    (tp->undo_marker && tp->snd_ssthresh < TCP_INFINITE_SSTHRESH)) {  in tcp_end_cwnd_reduction()
2553 		tp->undo_marker = 0;  in tcp_enter_cwr()
2663 		tp->undo_marker = 0;  in tcp_simple_retransmit()
2749 	if (tp->undo_marker && tcp_packet_delayed(tp)) {  in tcp_try_undo_partial()