562 	struct sackblk sack, sack_blocks[TCP_MAX_SACK + 1], *sblkp;  in tcp_sack_doack()  local
669 	sblkp = &sack_blocks[num_sack_blks - 1];	/* Last SACK block */  in tcp_sack_doack()
670 	tp->sackhint.last_sack_ack = sblkp->end;  in tcp_sack_doack()
671 	if (SEQ_LT(tp->snd_fack, sblkp->start)) {  in tcp_sack_doack()
682 			temp->end = sblkp->start;  in tcp_sack_doack()
684 			delivered_data += sblkp->end - sblkp->start;  in tcp_sack_doack()
688 			tp->snd_fack = sblkp->end;  in tcp_sack_doack()
689 			sblkp--;  in tcp_sack_doack()
698 			temp = tcp_sackhole_insert(tp, tp->snd_fack,sblkp->start,NULL);  in tcp_sack_doack()
700 				delivered_data += sblkp->end - sblkp->start;  in tcp_sack_doack()
702 				tp->snd_fack = sblkp->end;  in tcp_sack_doack()
704 				sblkp--;  in tcp_sack_doack()
715 				while (sblkp >= sack_blocks &&  in tcp_sack_doack()
716 				       SEQ_LT(tp->snd_fack, sblkp->start))  in tcp_sack_doack()
717 					sblkp--;  in tcp_sack_doack()
718 				if (sblkp >= sack_blocks &&  in tcp_sack_doack()
719 				    SEQ_LT(tp->snd_fack, sblkp->end)) {  in tcp_sack_doack()
720 					delivered_data += sblkp->end - tp->snd_fack;  in tcp_sack_doack()
721 					tp->snd_fack = sblkp->end;  in tcp_sack_doack()
731 	} else if (SEQ_LT(tp->snd_fack, sblkp->end)) {  in tcp_sack_doack()
733 		delivered_data += sblkp->end - tp->snd_fack;  in tcp_sack_doack()
734 		tp->snd_fack = sblkp->end;  in tcp_sack_doack()
745 		if (!(sblkp >= sack_blocks)) {  in tcp_sack_doack()
761 		if (SEQ_GEQ(sblkp->start, cur->end)) {  in tcp_sack_doack()
766 			sblkp--;  in tcp_sack_doack()
769 		if (SEQ_LEQ(sblkp->end, cur->start)) {  in tcp_sack_doack()
788 		if (SEQ_LEQ(sblkp->start, cur->start)) {  in tcp_sack_doack()
790 			if (SEQ_GEQ(sblkp->end, cur->end)) {  in tcp_sack_doack()
805 				delivered_data += (sblkp->end - cur->start);  in tcp_sack_doack()
806 				tp->sackhint.hole_bytes -= sblkp->end - cur->start;  in tcp_sack_doack()
807 				cur->start = sblkp->end;  in tcp_sack_doack()
812 			if (SEQ_GEQ(sblkp->end, cur->end)) {  in tcp_sack_doack()
814 				delivered_data += (cur->end - sblkp->start);  in tcp_sack_doack()
815 				tp->sackhint.hole_bytes -= cur->end - sblkp->start;  in tcp_sack_doack()
816 				cur->end = sblkp->start;  in tcp_sack_doack()
825 				temp = tcp_sackhole_insert(tp, sblkp->end,  in tcp_sack_doack()
835 					tp->sackhint.hole_bytes -= sblkp->end - sblkp->start;  in tcp_sack_doack()
842 					cur->end = sblkp->start;  in tcp_sack_doack()
847 					delivered_data += (sblkp->end - sblkp->start);  in tcp_sack_doack()
858 		if (SEQ_LEQ(sblkp->start, cur->start)) {  in tcp_sack_doack()
867 			sblkp--;  in tcp_sack_doack()