50 	struct mei_cl *cl;  in mei_open()  local
65 	cl = mei_cl_alloc_linked(dev);  in mei_open()
66 	if (IS_ERR(cl)) {  in mei_open()
67 		err = PTR_ERR(cl);  in mei_open()
71 	cl->fp = file;  in mei_open()
72 	file->private_data = cl;  in mei_open()
90 static void mei_cl_vtag_remove_by_fp(const struct mei_cl *cl,  in mei_cl_vtag_remove_by_fp()  argument
95 	list_for_each_entry_safe(vtag_l, next, &cl->vtag_map, list) {  in mei_cl_vtag_remove_by_fp()
114 	struct mei_cl *cl = file->private_data;  in mei_release()  local
118 	if (WARN_ON(!cl || !cl->dev))  in mei_release()
121 	dev = cl->dev;  in mei_release()
125 	mei_cl_vtag_remove_by_fp(cl, file);  in mei_release()
127 	if (!list_empty(&cl->vtag_map)) {  in mei_release()
128 		cl_dbg(dev, cl, "not the last vtag\n");  in mei_release()
129 		mei_cl_flush_queues(cl, file);  in mei_release()
134 	rets = mei_cl_disconnect(cl);  in mei_release()
139 	if (!list_empty(&cl->vtag_map)) {  in mei_release()
140 		cl_dbg(dev, cl, "not the last vtag after disconnect\n");  in mei_release()
141 		mei_cl_flush_queues(cl, file);  in mei_release()
145 	mei_cl_flush_queues(cl, NULL);  in mei_release()
146 	cl_dbg(dev, cl, "removing\n");  in mei_release()
148 	mei_cl_unlink(cl);  in mei_release()
149 	kfree(cl);  in mei_release()
172 	struct mei_cl *cl = file->private_data;  in mei_read()  local
178 	if (WARN_ON(!cl || !cl->dev))  in mei_read()
181 	dev = cl->dev;  in mei_read()
200 	cb = mei_cl_read_cb(cl, file);  in mei_read()
207 	rets = mei_cl_read_start(cl, length, file);  in mei_read()
209 		cl_dbg(dev, cl, "mei start read failure status = %zd\n", rets);  in mei_read()
219 	if (wait_event_interruptible(cl->rx_wait,  in mei_read()
220 				     mei_cl_read_cb(cl, file) ||  in mei_read()
221 				     !mei_cl_is_connected(cl))) {  in mei_read()
228 	if (!mei_cl_is_connected(cl)) {  in mei_read()
233 	cb = mei_cl_read_cb(cl, file);  in mei_read()
243 		cl_dbg(dev, cl, "read operation failed %zd\n", rets);  in mei_read()
247 	cl_dbg(dev, cl, "buf.size = %zu buf.idx = %zu offset = %lld\n",  in mei_read()
271 	mei_cl_del_rd_completed(cl, cb);  in mei_read()
275 	cl_dbg(dev, cl, "end mei read rets = %zd\n", rets);  in mei_read()
288 static u8 mei_cl_vtag_by_fp(const struct mei_cl *cl, const struct file *fp)  in mei_cl_vtag_by_fp()  argument
295 	list_for_each_entry(cl_vtag, &cl->vtag_map, list)  in mei_cl_vtag_by_fp()
314 	struct mei_cl *cl = file->private_data;  in mei_write()  local
319 	if (WARN_ON(!cl || !cl->dev))  in mei_write()
322 	dev = cl->dev;  in mei_write()
331 	if (!mei_cl_is_connected(cl)) {  in mei_write()
332 		cl_dbg(dev, cl, "is not connected");  in mei_write()
337 	if (!mei_me_cl_is_active(cl->me_cl)) {  in mei_write()
342 	if (length > mei_cl_mtu(cl)) {  in mei_write()
352 	while (cl->tx_cb_queued >= dev->tx_queue_limit) {  in mei_write()
358 		rets = wait_event_interruptible(cl->tx_wait,  in mei_write()
359 				cl->writing_state == MEI_WRITE_COMPLETE ||  in mei_write()
360 				(!mei_cl_is_connected(cl)));  in mei_write()
367 		if (!mei_cl_is_connected(cl)) {  in mei_write()
373 	cb = mei_cl_alloc_cb(cl, length, MEI_FOP_WRITE, file);  in mei_write()
378 	cb->vtag = mei_cl_vtag_by_fp(cl, file);  in mei_write()
388 	rets = mei_cl_write(cl, cb, MAX_SCHEDULE_TIMEOUT);  in mei_write()
411 	struct mei_cl *cl;  in mei_ioctl_connect_client()  local
414 	cl = file->private_data;  in mei_ioctl_connect_client()
415 	dev = cl->dev;  in mei_ioctl_connect_client()
417 	if (cl->state != MEI_FILE_INITIALIZING &&  in mei_ioctl_connect_client()
418 	    cl->state != MEI_FILE_DISCONNECTED)  in mei_ioctl_connect_client()
453 	rets = mei_cl_connect(cl, me_cl, file);  in mei_ioctl_connect_client()
511 	struct mei_cl *cl;  in mei_ioctl_connect_vtag()  local
515 	cl = file->private_data;  in mei_ioctl_connect_vtag()
516 	dev = cl->dev;  in mei_ioctl_connect_vtag()
520 	switch (cl->state) {  in mei_ioctl_connect_vtag()
522 		if (mei_cl_vtag_by_fp(cl, file) != vtag) {  in mei_ioctl_connect_vtag()
529 		if (!IS_ERR(mei_cl_fp_by_vtag(cl, vtag))) {  in mei_ioctl_connect_vtag()
535 			if (pos == cl)  in mei_ioctl_connect_vtag()
550 			mei_cl_unlink(cl);  in mei_ioctl_connect_vtag()
551 			kfree(cl);  in mei_ioctl_connect_vtag()
553 			cl = pos;  in mei_ioctl_connect_vtag()
561 		list_add_tail(&cl_vtag->list, &cl->vtag_map);  in mei_ioctl_connect_vtag()
567 	while (cl->state != MEI_FILE_INITIALIZING &&  in mei_ioctl_connect_vtag()
568 	       cl->state != MEI_FILE_DISCONNECTED &&  in mei_ioctl_connect_vtag()
569 	       cl->state != MEI_FILE_CONNECTED) {  in mei_ioctl_connect_vtag()
571 		wait_event_timeout(cl->wait,  in mei_ioctl_connect_vtag()
572 				   (cl->state == MEI_FILE_CONNECTED ||  in mei_ioctl_connect_vtag()
573 				    cl->state == MEI_FILE_DISCONNECTED ||  in mei_ioctl_connect_vtag()
574 				    cl->state == MEI_FILE_DISCONNECT_REQUIRED ||  in mei_ioctl_connect_vtag()
575 				    cl->state == MEI_FILE_DISCONNECT_REPLY),  in mei_ioctl_connect_vtag()
580 	if (!mei_cl_is_connected(cl))  in mei_ioctl_connect_vtag()
583 	client->max_msg_length = cl->me_cl->props.max_msg_length;  in mei_ioctl_connect_vtag()
584 	client->protocol_version = cl->me_cl->props.protocol_version;  in mei_ioctl_connect_vtag()
600 	struct mei_cl *cl = file->private_data;  in mei_ioctl_client_notify_request()  local
606 	return mei_cl_notify_request(cl, file, (u8)request);  in mei_ioctl_client_notify_request()
619 	struct mei_cl *cl = file->private_data;  in mei_ioctl_client_notify_get()  local
624 	rets = mei_cl_notify_get(cl, block, &notify_ev);  in mei_ioctl_client_notify_get()
644 	struct mei_cl *cl = file->private_data;  in mei_ioctl()  local
654 	if (WARN_ON(!cl || !cl->dev))  in mei_ioctl()
657 	dev = cl->dev;  in mei_ioctl()
786 	struct mei_cl *cl = file->private_data;  in mei_poll()  local
791 	if (WARN_ON(!cl || !cl->dev))  in mei_poll()
794 	dev = cl->dev;  in mei_poll()
798 	notify_en = cl->notify_en && (req_events & EPOLLPRI);  in mei_poll()
801 	    !mei_cl_is_connected(cl)) {  in mei_poll()
807 		poll_wait(file, &cl->ev_wait, wait);  in mei_poll()
808 		if (cl->notify_ev)  in mei_poll()
813 		poll_wait(file, &cl->rx_wait, wait);  in mei_poll()
815 		if (mei_cl_read_cb(cl, file))  in mei_poll()
818 			mei_cl_read_start(cl, mei_cl_mtu(cl), file);  in mei_poll()
822 		poll_wait(file, &cl->tx_wait, wait);  in mei_poll()
823 		if (cl->tx_cb_queued < dev->tx_queue_limit)  in mei_poll()
839 static bool mei_cl_is_write_queued(struct mei_cl *cl)  in mei_cl_is_write_queued()  argument
841 	struct mei_device *dev = cl->dev;  in mei_cl_is_write_queued()
845 		if (cb->cl == cl)  in mei_cl_is_write_queued()
848 		if (cb->cl == cl)  in mei_cl_is_write_queued()
865 	struct mei_cl *cl = fp->private_data;  in mei_fsync()  local
869 	if (WARN_ON(!cl || !cl->dev))  in mei_fsync()
872 	dev = cl->dev;  in mei_fsync()
876 	if (dev->dev_state != MEI_DEV_ENABLED || !mei_cl_is_connected(cl)) {  in mei_fsync()
881 	while (mei_cl_is_write_queued(cl)) {  in mei_fsync()
883 		rets = wait_event_interruptible(cl->tx_wait,  in mei_fsync()
884 				cl->writing_state == MEI_WRITE_COMPLETE ||  in mei_fsync()
885 				!mei_cl_is_connected(cl));  in mei_fsync()
892 		if (!mei_cl_is_connected(cl)) {  in mei_fsync()
917 	struct mei_cl *cl = file->private_data;  in mei_fasync()  local
919 	if (!mei_cl_is_connected(cl))  in mei_fasync()
922 	return fasync_helper(fd, file, band, &cl->ev_async);  in mei_fasync()