210 static int prepare_ring(struct xhci_ctrl *ctrl, struct xhci_ring *ep_ring,  in prepare_ring()  argument
213 	union xhci_trb *next = ep_ring->enqueue;  in prepare_ring()
238 	while (last_trb(ctrl, ep_ring, ep_ring->enq_seg, next)) {  in prepare_ring()
250 		if (last_trb_on_last_seg(ctrl, ep_ring,  in prepare_ring()
251 					ep_ring->enq_seg, next))  in prepare_ring()
252 			ep_ring->cycle_state = (ep_ring->cycle_state ? 0 : 1);  in prepare_ring()
253 		ep_ring->enq_seg = ep_ring->enq_seg->next;  in prepare_ring()
254 		ep_ring->enqueue = ep_ring->enq_seg->trbs;  in prepare_ring()
255 		next = ep_ring->enqueue;  in prepare_ring()
763 	struct xhci_ring *ep_ring;  in xhci_ctrl_tx()  local
774 	ep_ring = virt_dev->eps[ep_index].ring;  in xhci_ctrl_tx()
807 	ret = prepare_ring(ctrl, ep_ring,  in xhci_ctrl_tx()
818 	start_trb = &ep_ring->enqueue->generic;  in xhci_ctrl_tx()
819 	start_cycle = ep_ring->cycle_state;  in xhci_ctrl_tx()
856 	queue_trb(ctrl, ep_ring, true, trb_fields);  in xhci_ctrl_tx()
882 		trb_fields[3] = field | ep_ring->cycle_state;  in xhci_ctrl_tx()
885 		queue_trb(ctrl, ep_ring, true, trb_fields);  in xhci_ctrl_tx()
906 			ep_ring->cycle_state;  in xhci_ctrl_tx()
908 	queue_trb(ctrl, ep_ring, false, trb_fields);  in xhci_ctrl_tx()