1051 			 tp->undo_marker ? tp->undo_retrans : 0);  in tcp_check_sack_reordering()
1229 	if (!is_dsack || !tp->undo_marker)  in tcp_is_sackblock_valid()
1236 	if (!before(start_seq, tp->undo_marker))  in tcp_is_sackblock_valid()
1240 	if (!after(end_seq, tp->undo_marker))  in tcp_is_sackblock_valid()
1280 	if (tp->undo_marker && tp->undo_retrans > 0 &&  in tcp_check_dsack()
1282 	    after(end_seq_0, tp->undo_marker))  in tcp_check_dsack()
1355 		if (tp->undo_marker && tp->undo_retrans > 0 &&  in tcp_sacktag_one()
1356 		    after(end_seq, tp->undo_marker))  in tcp_sacktag_one()
1858 				if (!tp->undo_marker)  in tcp_sacktag_write_queue()
1989 	if (inet_csk(sk)->icsk_ca_state != TCP_CA_Loss || tp->undo_marker)  in tcp_sacktag_write_queue()
2084 	tp->undo_marker = 0;  in tcp_clear_retrans()
2091 	tp->undo_marker = tp->snd_una;  in tcp_init_undo()
2508 	tp->undo_marker = 0;  in tcp_undo_cwnd_reduction()
2514 	return tp->undo_marker && (!tp->undo_retrans || tcp_packet_delayed(tp));  in tcp_may_undo()
2566 	if (tp->undo_marker && !tp->undo_retrans) {  in tcp_try_undo_dsack()
2660 	    (inet_csk(sk)->icsk_ca_state == TCP_CA_CWR || tp->undo_marker)) {  in tcp_end_cwnd_reduction()
2674 		tp->undo_marker = 0;  in tcp_enter_cwr()
2794 		tp->undo_marker = 0;  in tcp_simple_retransmit()
2894 	if (tp->undo_marker && tcp_packet_delayed(tp)) {  in tcp_try_undo_partial()
6037 	if (tp->total_retrans > 1 && tp->undo_marker)  in tcp_init_transfer()
6163 	if (tp->undo_marker && syn_stamp && tp->rx_opt.saw_tstamp &&  in tcp_try_undo_spurious_syn()
6165 		tp->undo_marker = 0;  in tcp_try_undo_spurious_syn()