867 		if (after(tp->snd_una, tp->rtt_seq)) {  in tcp_rtt_estimator()
1209 	if (after(start_seq, tp->snd_una))  in tcp_is_sackblock_valid()
1216 	if (after(end_seq, tp->snd_una))  in tcp_is_sackblock_valid()
1347 	if (!after(end_seq, tp->snd_una))  in tcp_sacktag_one()
1546 	if (!after(TCP_SKB_CB(skb)->end_seq, tp->snd_una))  in tcp_shift_skb_data()
1626 	if (!after(TCP_SKB_CB(skb)->seq + len, tp->snd_una))  in tcp_shift_skb_data()
1847 				if ((TCP_SKB_CB(ack_skb)->ack_seq != tp->snd_una) &&  in tcp_sacktag_write_queue()
1848 				    !after(sp[used_sacks].end_seq, tp->snd_una))  in tcp_sacktag_write_queue()
2074 	tp->undo_marker = tp->snd_una;  in tcp_init_undo()
2132 	    !after(tp->high_seq, tp->snd_una) ||  in tcp_enter_loss()
2336 		if (mark_head && after(TCP_SKB_CB(skb)->seq, tp->snd_una))  in tcp_mark_head_lost()
2504 	if (tp->snd_una == tp->high_seq && tcp_is_reno(tp)) {  in tcp_is_non_sack_preventing_reopen()
2800 	bool recovered = !before(tp->snd_una, tp->high_seq);  in tcp_process_loss()
2854 		     tp->snd_una + tp->reordering * tp->mss_cache);  in tcp_force_fast_retransmit()
2952 	} else if (!before(tp->snd_una, tp->high_seq)) {  in tcp_fastretrans_alert()
2957 			if (tp->snd_una != tp->high_seq) {  in tcp_fastretrans_alert()
3022 		    tp->snd_una == tp->mtu_probe.probe_seq_start) {  in tcp_fastretrans_alert()
3170 	BUG_ON(!after(TCP_SKB_CB(skb)->end_seq, tp->snd_una));  in tcp_tso_acked()
3173 	if (tcp_trim_head(sk, skb, tp->snd_una - TCP_SKB_CB(skb)->seq))  in tcp_tso_acked()
3196 	    before(shinfo->tskey, tcp_sk(sk)->snd_una)) {  in tcp_ack_tstamp()
3235 		if (after(scb->end_seq, tp->snd_una)) {  in tcp_clean_rtx_queue()
3237 			    !after(tp->snd_una, scb->seq))  in tcp_clean_rtx_queue()
3311 	if (likely(between(tp->snd_up, prior_snd_una, tp->snd_una)))  in tcp_clean_rtx_queue()
3312 		tp->snd_up = tp->snd_una;  in tcp_clean_rtx_queue()
3345 			     !after(tp->mtu_probe.probe_seq_end, tp->snd_una))) {  in tcp_clean_rtx_queue()
3492 	return	after(ack, tp->snd_una) ||  in tcp_may_update_window()
3500 	u32 delta = ack - tp->snd_una;  in tcp_snd_una_update()
3504 	tp->snd_una = ack;  in tcp_snd_una_update()
3734 	u32 prior_snd_una = tp->snd_una;  in tcp_ack()
3782 	prior_fack = tcp_is_sack(tp) ? tcp_highest_sack_seq(tp) : tp->snd_una;  in tcp_ack()
4241 		ack == tp->snd_una &&  in tcp_disordered_ack()
4947 	TCP_SKB_CB(skb)->ack_seq = tcp_sk(sk)->snd_una - 1;  in tcp_send_rcvq()
5893 			if (TCP_SKB_CB(skb)->ack_seq != tp->snd_una) {  in tcp_rcv_established()
6121 		if (!after(TCP_SKB_CB(skb)->ack_seq, tp->snd_una) ||  in tcp_rcv_synsent_state_process()
6480 		tp->snd_una = TCP_SKB_CB(skb)->ack_seq;  in tcp_rcv_state_process()
6503 		if (tp->snd_una != tp->write_seq)  in tcp_rcv_state_process()
6551 		if (tp->snd_una == tp->write_seq) {  in tcp_rcv_state_process()
6558 		if (tp->snd_una == tp->write_seq) {  in tcp_rcv_state_process()