730 		if (after(tp->snd_una, tp->rtt_seq)) {  in tcp_rtt_estimator()
1008 	if (after(start_seq, tp->snd_una))  in tcp_is_sackblock_valid()
1015 	if (after(end_seq, tp->snd_una))  in tcp_is_sackblock_valid()
1061 		if (!after(TCP_SKB_CB(skb)->end_seq, tp->snd_una))  in tcp_mark_lost_retrans()
1211 	if (!after(end_seq, tp->snd_una))  in tcp_sacktag_one()
1402 	if (!after(TCP_SKB_CB(skb)->end_seq, tp->snd_una))  in tcp_shift_skb_data()
1479 	if (!after(TCP_SKB_CB(skb)->seq + len, tp->snd_una))  in tcp_shift_skb_data()
1698 				if ((TCP_SKB_CB(ack_skb)->ack_seq != tp->snd_una) &&  in tcp_sacktag_write_queue()
1699 				    !after(sp[used_sacks].end_seq, tp->snd_una))  in tcp_sacktag_write_queue()
1913 	tp->undo_marker = tp->snd_una;  in tcp_init_undo()
1932 	    !after(tp->high_seq, tp->snd_una) ||  in tcp_enter_loss()
2437 	if (tp->snd_una == tp->high_seq && tcp_is_reno(tp)) {  in tcp_try_undo_recovery()
2699 	bool recovered = !before(tp->snd_una, tp->high_seq);  in tcp_process_loss()
2820 	} else if (!before(tp->snd_una, tp->high_seq)) {  in tcp_fastretrans_alert()
2825 			if (tp->snd_una != tp->high_seq) {  in tcp_fastretrans_alert()
2883 		    tp->snd_una == tp->mtu_probe.probe_seq_start) {  in tcp_fastretrans_alert()
3023 	BUG_ON(!after(TCP_SKB_CB(skb)->end_seq, tp->snd_una));  in tcp_tso_acked()
3026 	if (tcp_trim_head(sk, skb, tp->snd_una - TCP_SKB_CB(skb)->seq))  in tcp_tso_acked()
3049 	    between(shinfo->tskey, prior_snd_una, tcp_sk(sk)->snd_una - 1))  in tcp_ack_tstamp()
3083 		if (after(scb->end_seq, tp->snd_una)) {  in tcp_clean_rtx_queue()
3085 			    !after(tp->snd_una, scb->seq))  in tcp_clean_rtx_queue()
3147 	if (likely(between(tp->snd_up, prior_snd_una, tp->snd_una)))  in tcp_clean_rtx_queue()
3148 		tp->snd_up = tp->snd_una;  in tcp_clean_rtx_queue()
3167 			     !after(tp->mtu_probe.probe_seq_end, tp->snd_una))) {  in tcp_clean_rtx_queue()
3279 	return	after(ack, tp->snd_una) ||  in tcp_may_update_window()
3287 	u32 delta = ack - tp->snd_una;  in tcp_snd_una_update()
3292 	tp->snd_una = ack;  in tcp_snd_una_update()
3469 	u32 prior_snd_una = tp->snd_una;  in tcp_ack()
3609 	SOCK_DEBUG(sk, "Ack %u after %u:%u\n", ack, tp->snd_una, tp->snd_nxt);  in tcp_ack()
3623 	SOCK_DEBUG(sk, "Ack %u before %u:%u\n", ack, tp->snd_una, tp->snd_nxt);  in tcp_ack()
3875 		ack == tp->snd_una &&  in tcp_disordered_ack()
4473 	TCP_SKB_CB(skb)->ack_seq = tcp_sk(sk)->snd_una - 1;  in tcp_send_rcvq()
5319 			if (TCP_SKB_CB(skb)->ack_seq != tp->snd_una) {  in tcp_rcv_established()
5490 		if (!after(TCP_SKB_CB(skb)->ack_seq, tp->snd_una) ||  in tcp_rcv_synsent_state_process()
5812 		tp->snd_una = TCP_SKB_CB(skb)->ack_seq;  in tcp_rcv_state_process()
5864 		if (tp->snd_una != tp->write_seq)  in tcp_rcv_state_process()
5907 		if (tp->snd_una == tp->write_seq) {  in tcp_rcv_state_process()
5914 		if (tp->snd_una == tp->write_seq) {  in tcp_rcv_state_process()