178 	struct f_loopback	*loop = func_to_loop(f);  in loopback_bind()  local
196 	loop->in_ep = usb_ep_autoconfig(cdev->gadget, &fs_loop_source_desc);  in loopback_bind()
197 	if (!loop->in_ep) {  in loopback_bind()
203 	loop->in_ep->driver_data = cdev;	/* claim */  in loopback_bind()
205 	loop->out_ep = usb_ep_autoconfig(cdev->gadget, &fs_loop_sink_desc);  in loopback_bind()
206 	if (!loop->out_ep)  in loopback_bind()
208 	loop->out_ep->driver_data = cdev;	/* claim */  in loopback_bind()
228 			f->name, loop->in_ep->name, loop->out_ep->name);  in loopback_bind()
248 	struct f_loopback	*loop = ep->driver_data;  in loopback_complete()  local
249 	struct usb_composite_dev *cdev = loop->function.config->cdev;  in loopback_complete()
255 		if (ep == loop->out_ep) {  in loopback_complete()
287 static void disable_loopback(struct f_loopback *loop)  in disable_loopback()  argument
291 	cdev = loop->function.config->cdev;  in disable_loopback()
292 	disable_endpoints(cdev, loop->in_ep, loop->out_ep, NULL, NULL);  in disable_loopback()
293 	VDBG(cdev, "%s disabled\n", loop->function.name);  in disable_loopback()
301 static int enable_endpoint(struct usb_composite_dev *cdev, struct f_loopback *loop,  in enable_endpoint()  argument
312 	result = config_ep_by_speed(cdev->gadget, &(loop->function), ep);  in enable_endpoint()
318 	ep->driver_data = loop;  in enable_endpoint()
349 enable_loopback(struct usb_composite_dev *cdev, struct f_loopback *loop)  in enable_loopback()  argument
353 	result = enable_endpoint(cdev, loop, loop->in_ep);  in enable_loopback()
357 	result = enable_endpoint(cdev, loop, loop->out_ep);  in enable_loopback()
361 	DBG(cdev, "%s enabled\n", loop->function.name);  in enable_loopback()
368 	struct f_loopback	*loop = func_to_loop(f);  in loopback_set_alt()  local
372 	if (loop->in_ep->driver_data)  in loopback_set_alt()
373 		disable_loopback(loop);  in loopback_set_alt()
374 	return enable_loopback(cdev, loop);  in loopback_set_alt()
379 	struct f_loopback	*loop = func_to_loop(f);  in loopback_disable()  local
381 	disable_loopback(loop);  in loopback_disable()
386 	struct f_loopback	*loop;  in loopback_alloc()  local
389 	loop = kzalloc(sizeof *loop, GFP_KERNEL);  in loopback_alloc()
390 	if (!loop)  in loopback_alloc()
404 	loop->function.name = "loopback";  in loopback_alloc()
405 	loop->function.bind = loopback_bind;  in loopback_alloc()
406 	loop->function.set_alt = loopback_set_alt;  in loopback_alloc()
407 	loop->function.disable = loopback_disable;  in loopback_alloc()
408 	loop->function.strings = loopback_strings;  in loopback_alloc()
410 	loop->function.free_func = lb_free_func;  in loopback_alloc()
412 	return &loop->function;  in loopback_alloc()