91 #define PF_TO_X(pf, X)		container_of(pf, X, file)  argument
93 #define PF_TO_PPP(pf)		PF_TO_X(pf, struct ppp)  argument
94 #define PF_TO_CHANNEL(pf)	PF_TO_X(pf, struct channel)  argument
248 static int ppp_unattached_ioctl(struct net *net, struct ppp_file *pf,
274 static void init_ppp_file(struct ppp_file *pf, int kind);
390 	struct ppp_file *pf = file->private_data;  in ppp_release()  local
393 	if (pf) {  in ppp_release()
395 		if (pf->kind == INTERFACE) {  in ppp_release()
396 			ppp = PF_TO_PPP(pf);  in ppp_release()
402 		if (atomic_dec_and_test(&pf->refcnt)) {  in ppp_release()
403 			switch (pf->kind) {  in ppp_release()
405 				ppp_destroy_interface(PF_TO_PPP(pf));  in ppp_release()
408 				ppp_destroy_channel(PF_TO_CHANNEL(pf));  in ppp_release()
419 	struct ppp_file *pf = file->private_data;  in ppp_read()  local
428 	if (!pf)  in ppp_read()
430 	add_wait_queue(&pf->rwait, &wait);  in ppp_read()
433 		skb = skb_dequeue(&pf->rq);  in ppp_read()
437 		if (pf->dead)  in ppp_read()
439 		if (pf->kind == INTERFACE) {  in ppp_read()
445 			struct ppp *ppp = PF_TO_PPP(pf);  in ppp_read()
459 	remove_wait_queue(&pf->rwait, &wait);  in ppp_read()
484 	struct ppp_file *pf = file->private_data;  in ppp_write()  local
488 	if (!pf)  in ppp_write()
491 	skb = alloc_skb(count + pf->hdrlen, GFP_KERNEL);  in ppp_write()
494 	skb_reserve(skb, pf->hdrlen);  in ppp_write()
501 	skb_queue_tail(&pf->xq, skb);  in ppp_write()
503 	switch (pf->kind) {  in ppp_write()
505 		ppp_xmit_process(PF_TO_PPP(pf));  in ppp_write()
508 		ppp_channel_push(PF_TO_CHANNEL(pf));  in ppp_write()
521 	struct ppp_file *pf = file->private_data;  in ppp_poll()  local
524 	if (!pf)  in ppp_poll()
526 	poll_wait(file, &pf->rwait, wait);  in ppp_poll()
528 	if (skb_peek(&pf->rq))  in ppp_poll()
530 	if (pf->dead)  in ppp_poll()
532 	else if (pf->kind == INTERFACE) {  in ppp_poll()
534 		struct ppp *ppp = PF_TO_PPP(pf);  in ppp_poll()
570 	struct ppp_file *pf;  in ppp_ioctl()  local
582 	pf = file->private_data;  in ppp_ioctl()
583 	if (!pf) {  in ppp_ioctl()
585 					   pf, file, cmd, arg);  in ppp_ioctl()
602 		if (pf->kind == INTERFACE) {  in ppp_ioctl()
603 			ppp = PF_TO_PPP(pf);  in ppp_ioctl()
618 	if (pf->kind == CHANNEL) {  in ppp_ioctl()
622 		pch = PF_TO_CHANNEL(pf);  in ppp_ioctl()
646 	if (pf->kind != INTERFACE) {  in ppp_ioctl()
653 	ppp = PF_TO_PPP(pf);  in ppp_ioctl()
834 static int ppp_unattached_ioctl(struct net *net, struct ppp_file *pf,  in ppp_unattached_ioctl()  argument
2822 init_ppp_file(struct ppp_file *pf, int kind)  in init_ppp_file()  argument
2824 	pf->kind = kind;  in init_ppp_file()
2825 	skb_queue_head_init(&pf->xq);  in init_ppp_file()
2826 	skb_queue_head_init(&pf->rq);  in init_ppp_file()
2827 	atomic_set(&pf->refcnt, 1);  in init_ppp_file()
2828 	init_waitqueue_head(&pf->rwait);  in init_ppp_file()