255 		unsigned int num_trbs)  in room_on_ring()  argument
259 	if (ring->num_trbs_free < num_trbs)  in room_on_ring()
264 		if (ring->num_trbs_free < num_trbs + num_trbs_in_deq_seg)  in room_on_ring()
2805 		u32 ep_state, unsigned int num_trbs, gfp_t mem_flags)  in prepare_ring()  argument
2838 		if (room_on_ring(xhci, ep_ring, num_trbs))  in prepare_ring()
2848 		num_trbs_needed = num_trbs - ep_ring->num_trbs_free;  in prepare_ring()
2893 		unsigned int num_trbs,  in prepare_transfer()  argument
2913 			   num_trbs, mem_flags);  in prepare_transfer()
2942 	int num_sgs, num_trbs, running_total, temp, i;  in count_sg_trbs_needed()  local
2949 	num_trbs = 0;  in count_sg_trbs_needed()
2958 			num_trbs++;  in count_sg_trbs_needed()
2962 			num_trbs++;  in count_sg_trbs_needed()
2970 	return num_trbs;  in count_sg_trbs_needed()
2973 static void check_trb_math(struct urb *urb, int num_trbs, int running_total)  in check_trb_math()  argument
2975 	if (num_trbs != 0)  in check_trb_math()
2978 				urb->ep->desc.bEndpointAddress, num_trbs);  in check_trb_math()
3088 	unsigned int num_trbs;  in queue_bulk_sg_tx()  local
3108 	num_trbs = count_sg_trbs_needed(xhci, urb);  in queue_bulk_sg_tx()
3115 			num_trbs, urb, 0, mem_flags);  in queue_bulk_sg_tx()
3125 		num_trbs++;  in queue_bulk_sg_tx()
3181 		if (num_trbs > last_trb_num) {  in queue_bulk_sg_tx()
3183 		} else if (num_trbs == last_trb_num) {  in queue_bulk_sg_tx()
3186 		} else if (zero_length_needed && num_trbs == 1) {  in queue_bulk_sg_tx()
3207 					   urb, num_trbs - 1);  in queue_bulk_sg_tx()
3213 		if (num_trbs > 1)  in queue_bulk_sg_tx()
3222 		--num_trbs;  in queue_bulk_sg_tx()
3246 	} while (num_trbs > 0);  in queue_bulk_sg_tx()
3248 	check_trb_math(urb, num_trbs, running_total);  in queue_bulk_sg_tx()
3261 	int num_trbs;  in xhci_queue_bulk_tx()  local
3281 	num_trbs = 0;  in xhci_queue_bulk_tx()
3291 		num_trbs++;  in xhci_queue_bulk_tx()
3294 		num_trbs++;  in xhci_queue_bulk_tx()
3300 			num_trbs, urb, 0, mem_flags);  in xhci_queue_bulk_tx()
3310 		num_trbs++;  in xhci_queue_bulk_tx()
3357 		if (num_trbs > last_trb_num) {  in xhci_queue_bulk_tx()
3359 		} else if (num_trbs == last_trb_num) {  in xhci_queue_bulk_tx()
3362 		} else if (zero_length_needed && num_trbs == 1) {  in xhci_queue_bulk_tx()
3375 					   urb, num_trbs - 1);  in xhci_queue_bulk_tx()
3381 		if (num_trbs > 1)  in xhci_queue_bulk_tx()
3390 		--num_trbs;  in xhci_queue_bulk_tx()
3398 	} while (num_trbs > 0);  in xhci_queue_bulk_tx()
3400 	check_trb_math(urb, num_trbs, running_total);  in xhci_queue_bulk_tx()
3411 	int num_trbs;  in xhci_queue_ctrl_tx()  local
3432 	num_trbs = 2;  in xhci_queue_ctrl_tx()
3439 		num_trbs++;  in xhci_queue_ctrl_tx()
3442 			num_trbs, urb, 0, mem_flags);  in xhci_queue_ctrl_tx()
3532 	int num_trbs = 0;  in count_isoc_trbs_needed()  local
3538 	num_trbs = DIV_ROUND_UP(td_len + (addr & (TRB_MAX_BUFF_SIZE - 1)),  in count_isoc_trbs_needed()
3540 	if (num_trbs == 0)  in count_isoc_trbs_needed()
3541 		num_trbs++;  in count_isoc_trbs_needed()
3543 	return num_trbs;  in count_isoc_trbs_needed()
3906 	int num_tds, num_trbs, i;  in xhci_queue_isoc_tx_prepare()  local
3916 	num_trbs = 0;  in xhci_queue_isoc_tx_prepare()
3919 		num_trbs += count_isoc_trbs_needed(xhci, urb, i);  in xhci_queue_isoc_tx_prepare()
3925 			   num_trbs, mem_flags);  in xhci_queue_isoc_tx_prepare()