989     void *priv_sc, struct mtx *xfer_mtx)  in usbd_transfer_setup()  argument
1016 	if (xfer_mtx == NULL) {  in usbd_transfer_setup()
1018 		xfer_mtx = &Giant;  in usbd_transfer_setup()
1078 			info->xfer_mtx = xfer_mtx;  in usbd_transfer_setup()
1082 			    xfer_mtx, &usb_bdma_done_event, udev->bus->dma_bits,  in usbd_transfer_setup()
1110 			else if (xfer_mtx == &Giant)  in usbd_transfer_setup()
2127 	if (xfer->xroot->xfer_mtx != &Giant) {  in usbd_transfer_drain()
2149 		cv_wait(&xfer->xroot->cv_drain, xfer->xroot->xfer_mtx);  in usbd_transfer_drain()
2341 	USB_MTX_LOCK(info->xfer_mtx);  in usb_callback_proc()
2348 	USB_MTX_UNLOCK(info->xfer_mtx);  in usb_callback_proc()
2399 	if ((pq->recurse_3 != 0 || mtx_owned(info->xfer_mtx) == 0) &&  in usbd_callback_wrapper()
2625 	if (mtx_owned(info->xfer_mtx)) {  in usbd_transfer_done()
3476 			while (mtx_owned(xroot->xfer_mtx)) {  in usbd_transfer_poll()
3477 				mtx_unlock(xroot->xfer_mtx);  in usbd_transfer_poll()
3513 			mtx_lock(xroot->xfer_mtx);  in usbd_transfer_poll()