176 	struct pppox_sock *po = pppox_sk(sk);  in pptp_xmit()  local
177 	struct pptp_opt *opt = &po->proto.pptp;  in pptp_xmit()
192 	if (sk_pppox(po)->sk_state & PPPOX_DEAD)  in pptp_xmit()
300 	struct pppox_sock *po = pppox_sk(sk);  in pptp_rcv_core()  local
301 	struct pptp_opt *opt = &po->proto.pptp;  in pptp_rcv_core()
373 		ppp_input(&po->chan, skb);  in pptp_rcv_core()
384 	struct pppox_sock *po;  in pptp_rcv()  local
406 	po = lookup_chan(htons(header->call_id), iph->saddr);  in pptp_rcv()
407 	if (po) {  in pptp_rcv()
410 		return sk_receive_skb(sk_pppox(po), skb, 0);  in pptp_rcv()
422 	struct pppox_sock *po = pppox_sk(sk);  in pptp_bind()  local
440 	if (add_chan(po, &sp->sa_addr.pptp))  in pptp_bind()
455 	struct pppox_sock *po = pppox_sk(sk);  in pptp_connect()  local
456 	struct pptp_opt *opt = &po->proto.pptp;  in pptp_connect()
488 	po->chan.private = sk;  in pptp_connect()
489 	po->chan.ops = &pptp_chan_ops;  in pptp_connect()
502 	po->chan.mtu = dst_mtu(&rt->dst);  in pptp_connect()
503 	if (!po->chan.mtu)  in pptp_connect()
504 		po->chan.mtu = PPP_MRU;  in pptp_connect()
506 	po->chan.mtu -= PPTP_HEADER_OVERHEAD;  in pptp_connect()
508 	po->chan.hdrlen = 2 + sizeof(struct pptp_gre_header);  in pptp_connect()
509 	error = ppp_register_channel(&po->chan);  in pptp_connect()
545 	struct pppox_sock *po;  in pptp_release()  local
559 	po = pppox_sk(sk);  in pptp_release()
560 	opt = &po->proto.pptp;  in pptp_release()
561 	del_chan(po);  in pptp_release()
588 	struct pppox_sock *po;  in pptp_create()  local
607 	po = pppox_sk(sk);  in pptp_create()
608 	opt = &po->proto.pptp;  in pptp_create()
622 	struct pppox_sock *po = pppox_sk(sk);  in pptp_ppp_ioctl()  local
623 	struct pptp_opt *opt = &po->proto.pptp;  in pptp_ppp_ioctl()