296 	vflagsav = inp->inp_vflag;  in tcp6_usr_bind()
317 	inp->inp_vflag &= ~INP_IPV4;  in tcp6_usr_bind()
318 	inp->inp_vflag |= INP_IPV6;  in tcp6_usr_bind()
322 			inp->inp_vflag |= INP_IPV4;  in tcp6_usr_bind()
332 			inp->inp_vflag |= INP_IPV4;  in tcp6_usr_bind()
333 			inp->inp_vflag &= ~INP_IPV6;  in tcp6_usr_bind()
345 		inp->inp_vflag = vflagsav;  in tcp6_usr_bind()
433 	vflagsav = inp->inp_vflag;  in tcp6_usr_listen()
444 		inp->inp_vflag &= ~INP_IPV4;  in tcp6_usr_listen()
446 			inp->inp_vflag |= INP_IPV4;  in tcp6_usr_listen()
471 		inp->inp_vflag = vflagsav;  in tcp6_usr_listen()
577 	vflagsav = inp->inp_vflag;  in tcp6_usr_connect()
613 		if ((inp->inp_vflag & INP_IPV4) == 0) {  in tcp6_usr_connect()
630 		inp->inp_vflag |= INP_IPV4;  in tcp6_usr_connect()
631 		inp->inp_vflag &= ~INP_IPV6;  in tcp6_usr_connect()
644 		if ((inp->inp_vflag & INP_IPV6) == 0) {  in tcp6_usr_connect()
652 	inp->inp_vflag &= ~INP_IPV4;  in tcp6_usr_connect()
653 	inp->inp_vflag |= INP_IPV6;  in tcp6_usr_connect()
676 		inp->inp_vflag = vflagsav;  in tcp6_usr_connect()
780 		if (inp->inp_vflag & INP_IPV4) {  in tcp6_usr_accept()
950 	vflagsav = inp->inp_vflag;  in tcp_usr_send()
982 			if ((inp->inp_vflag & INP_IPV6) != 0) {  in tcp_usr_send()
1009 			if ((inp->inp_vflag & INP_IPV6PROTO) == 0) {  in tcp_usr_send()
1023 				if ((inp->inp_vflag & INP_IPV4) == 0) {  in tcp_usr_send()
1028 				inp->inp_vflag &= ~INP_IPV6;  in tcp_usr_send()
1045 				if ((inp->inp_vflag & INP_IPV6) == 0) {  in tcp_usr_send()
1050 				inp->inp_vflag &= ~INP_IPV4;  in tcp_usr_send()
1221 		inp->inp_vflag = vflagsav;  in tcp_usr_send()
1668 		if (inp->inp_vflag & INP_IPV6PROTO)  in tcp_ctloutput_set()
1685 			if ((inp->inp_vflag & INP_IPV6PROTO) == 0)  in tcp_ctloutput_set()
1836 		if (inp->inp_vflag & INP_IPV6PROTO)  in tcp_ctloutput_get()
2040 		MPASS(inp->inp_vflag & INP_IPV6PROTO);  in tcp_default_ctloutput()