1022 	int32_t len, recwin, sendwin, off;  in tcp_output()  local
1781 	recwin = tcp_sbspace(tp);  in tcp_output()
1784 		if (recwin < (int32_t)(so->so_rcv.sb_hiwat / 4) &&  in tcp_output()
1785 		    recwin < (int)tp->t_maxseg) {  in tcp_output()
1786 			recwin = 0;  in tcp_output()
1792 		if (recwin < (int32_t)(mp_so->so_rcv.sb_hiwat / 4) &&  in tcp_output()
1793 		    recwin < (int)tp->t_maxseg) {  in tcp_output()
1794 			recwin = 0;  in tcp_output()
1806 			if (recwin > 0 && tcp_cc_rledbat.get_rlwin != NULL) {  in tcp_output()
1808 				recwin = imin(recwin, tcp_cc_rledbat.get_rlwin(tp));  in tcp_output()
1810 		} else if (recwin > 0 && tcp_recv_throttle(tp)) {  in tcp_output()
1816 			recwin = imin((int32_t)(bg_rwintop - tp->rcv_nxt),  in tcp_output()
1817 			    recwin);  in tcp_output()
1818 			if (recwin < 0) {  in tcp_output()
1819 				recwin = 0;  in tcp_output()
1825 	if (recwin > (int32_t)(TCP_MAXWIN << tp->rcv_scale)) {  in tcp_output()
1826 		recwin = (int32_t)(TCP_MAXWIN << tp->rcv_scale);  in tcp_output()
1830 		if (recwin < (int32_t)(tp->rcv_adv - tp->rcv_nxt)) {  in tcp_output()
1831 			recwin = (int32_t)(tp->rcv_adv - tp->rcv_nxt);  in tcp_output()
1839 		if (recwin < (int32_t)recwin_announced) {  in tcp_output()
1840 			recwin = (int32_t)recwin_announced;  in tcp_output()
1844 			if (recwin < (int32_t)(tp->rcv_adv - tp->rcv_nxt)) {  in tcp_output()
1845 				recwin = (int32_t)(tp->rcv_adv - tp->rcv_nxt);  in tcp_output()
1854 	recwin = ROUNDUP(recwin, (1 << tp->rcv_scale));  in tcp_output()
1945 	if (recwin > 0) {  in tcp_output()
1952 		adv = imin(recwin, (int)TCP_MAXWIN << tp->rcv_scale) -  in tcp_output()
2979 	th->th_win = htons((u_short) (recwin >> tp->rcv_scale));  in tcp_output()
2980 	tp->t_last_recwin = recwin;  in tcp_output()
2982 		if (recwin > 0 && SEQ_LT(tp->rcv_adv, tp->rcv_nxt + recwin)) {  in tcp_output()
2983 			tp->rcv_adv = tp->rcv_nxt + recwin;  in tcp_output()
2987 		if (recwin > 0) {  in tcp_output()
2988 			tp->rcv_adv = tp->rcv_nxt + recwin;  in tcp_output()
2991 		if (recwin > 0 && MPTCP_SEQ_LT(mp_tp->mpt_rcvadv, mp_tp->mpt_rcvnxt + recwin)) {  in tcp_output()
2992 			mp_tp->mpt_rcvadv = mp_tp->mpt_rcvnxt + recwin;  in tcp_output()