880 	delta = tcp_time_stamp_ts(tp) - tp->rx_opt.rcv_tsecr;  in tcp_rtt_tsopt_us()
898 	if (tp->rx_opt.rcv_tsecr == tp->rcv_rtt_last_tsecr)  in tcp_rcv_rtt_measure_ts()
900 	tp->rcv_rtt_last_tsecr = tp->rx_opt.rcv_tsecr;  in tcp_rcv_rtt_measure_ts()
2725 	return tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr &&  in tcp_tsopt_ecr_before()
2726 	       before(tp->rx_opt.rcv_tsecr, when);  in tcp_tsopt_ecr_before()
3480 	    tp->rx_opt.rcv_tsecr && flag & FLAG_ACKED)  in tcp_ack_update_rtt()
4600 					opt_rx->rcv_tsecr = get_unaligned_be32(ptr + 4);  in tcp_parse_options()
4684 			tp->rx_opt.rcv_tsecr = ntohl(*ptr) - tp->tsoffset;  in tcp_parse_aligned_timestamp()
4686 			tp->rx_opt.rcv_tsecr = 0;  in tcp_parse_aligned_timestamp()
4715 	if (tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr)  in tcp_fast_parse_options()
4716 		tp->rx_opt.rcv_tsecr -= tp->tsoffset;  in tcp_fast_parse_options()
6563 				tp->rcv_rtt_last_tsecr = tp->rx_opt.rcv_tsecr;  in tcp_rcv_established()
6815 	    syn_stamp == tp->rx_opt.rcv_tsecr)  in tcp_try_undo_spurious_syn()
6830 	if (tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr)  in tcp_rcv_synsent_state_process()
6831 		tp->rx_opt.rcv_tsecr -= tp->tsoffset;  in tcp_rcv_synsent_state_process()
6852 		if (tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr &&  in tcp_rcv_synsent_state_process()
6853 		    !between(tp->rx_opt.rcv_tsecr, tp->retrans_stamp,  in tcp_rcv_synsent_state_process()