Merge "usb: gadget: f_fs: Use config_ep_by_speed()"

	spin_lock_irqsave(&func->ffs->eps_lock, flags);

	while(count--) {

		struct usb_endpoint_descriptor *ds;

		struct usb_ss_ep_comp_descriptor *comp_desc = NULL;

		int needs_comp_desc = false;

		int desc_idx;

		if (ffs->gadget->speed == USB_SPEED_SUPER) {

			desc_idx = 2;

			needs_comp_desc = true;

		} else if (ffs->gadget->speed == USB_SPEED_HIGH)

			desc_idx = 1;

		else

			desc_idx = 0;

		/* fall-back to lower speed if desc missing for current speed */

		do {

			ds = ep->descs[desc_idx];

		} while (!ds && --desc_idx >= 0);

		if (!ds) {

			ret = -EINVAL;

			break;

		}

		ep->ep->driver_data = ep;

		ep->ep->desc = ds;

		if (needs_comp_desc) {

			comp_desc = (struct usb_ss_ep_comp_descriptor *)(ds +

					USB_DT_ENDPOINT_SIZE);

			ep->ep->maxburst = comp_desc->bMaxBurst + 1;

			ep->ep->comp_desc = comp_desc;

		ret = config_ep_by_speed(func->gadget, &func->function, ep->ep);

		if (ret) {

			pr_err("%s: config_ep_by_speed(%s) returned %d\n",

					__func__, ep->ep->name, ret);

			break;

		}

		ret = usb_ep_enable(ep->ep);

		if (likely(!ret)) {

			epfile->ep = ep;

			epfile->in = usb_endpoint_dir_in(ds);

			epfile->isoc = usb_endpoint_xfer_isoc(ds);

			epfile->in = usb_endpoint_dir_in(ep->ep->desc);

			epfile->isoc = usb_endpoint_xfer_isoc(ep->ep->desc);

		} else {

			break;

		}