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()
2766 		u32 ep_state, unsigned int num_trbs, gfp_t mem_flags)  in prepare_ring()  argument
2799 		if (room_on_ring(xhci, ep_ring, num_trbs))  in prepare_ring()
2809 		num_trbs_needed = num_trbs - ep_ring->num_trbs_free;  in prepare_ring()
2854 		unsigned int num_trbs,  in prepare_transfer()  argument
2874 			   num_trbs, mem_flags);  in prepare_transfer()
2903 	int num_sgs, num_trbs, running_total, temp, i;  in count_sg_trbs_needed()  local
2910 	num_trbs = 0;  in count_sg_trbs_needed()
2919 			num_trbs++;  in count_sg_trbs_needed()
2923 			num_trbs++;  in count_sg_trbs_needed()
2931 	return num_trbs;  in count_sg_trbs_needed()
2934 static void check_trb_math(struct urb *urb, int num_trbs, int running_total)  in check_trb_math()  argument
2936 	if (num_trbs != 0)  in check_trb_math()
2939 				urb->ep->desc.bEndpointAddress, num_trbs);  in check_trb_math()
3049 	unsigned int num_trbs;  in queue_bulk_sg_tx()  local
3069 	num_trbs = count_sg_trbs_needed(xhci, urb);  in queue_bulk_sg_tx()
3076 			num_trbs, urb, 0, mem_flags);  in queue_bulk_sg_tx()
3086 		num_trbs++;  in queue_bulk_sg_tx()
3142 		if (num_trbs > last_trb_num) {  in queue_bulk_sg_tx()
3144 		} else if (num_trbs == last_trb_num) {  in queue_bulk_sg_tx()
3147 		} else if (zero_length_needed && num_trbs == 1) {  in queue_bulk_sg_tx()
3168 					   urb, num_trbs - 1);  in queue_bulk_sg_tx()
3174 		if (num_trbs > 1)  in queue_bulk_sg_tx()
3183 		--num_trbs;  in queue_bulk_sg_tx()
3207 	} while (num_trbs > 0);  in queue_bulk_sg_tx()
3209 	check_trb_math(urb, num_trbs, running_total);  in queue_bulk_sg_tx()
3222 	int num_trbs;  in xhci_queue_bulk_tx()  local
3242 	num_trbs = 0;  in xhci_queue_bulk_tx()
3252 		num_trbs++;  in xhci_queue_bulk_tx()
3255 		num_trbs++;  in xhci_queue_bulk_tx()
3261 			num_trbs, urb, 0, mem_flags);  in xhci_queue_bulk_tx()
3271 		num_trbs++;  in xhci_queue_bulk_tx()
3318 		if (num_trbs > last_trb_num) {  in xhci_queue_bulk_tx()
3320 		} else if (num_trbs == last_trb_num) {  in xhci_queue_bulk_tx()
3323 		} else if (zero_length_needed && num_trbs == 1) {  in xhci_queue_bulk_tx()
3336 					   urb, num_trbs - 1);  in xhci_queue_bulk_tx()
3342 		if (num_trbs > 1)  in xhci_queue_bulk_tx()
3351 		--num_trbs;  in xhci_queue_bulk_tx()
3359 	} while (num_trbs > 0);  in xhci_queue_bulk_tx()
3361 	check_trb_math(urb, num_trbs, running_total);  in xhci_queue_bulk_tx()
3372 	int num_trbs;  in xhci_queue_ctrl_tx()  local
3393 	num_trbs = 2;  in xhci_queue_ctrl_tx()
3400 		num_trbs++;  in xhci_queue_ctrl_tx()
3403 			num_trbs, urb, 0, mem_flags);  in xhci_queue_ctrl_tx()
3493 	int num_trbs = 0;  in count_isoc_trbs_needed()  local
3499 	num_trbs = DIV_ROUND_UP(td_len + (addr & (TRB_MAX_BUFF_SIZE - 1)),  in count_isoc_trbs_needed()
3501 	if (num_trbs == 0)  in count_isoc_trbs_needed()
3502 		num_trbs++;  in count_isoc_trbs_needed()
3504 	return num_trbs;  in count_isoc_trbs_needed()
3757 	int num_tds, num_trbs, i;  in xhci_queue_isoc_tx_prepare()  local
3764 	num_trbs = 0;  in xhci_queue_isoc_tx_prepare()
3767 		num_trbs += count_isoc_trbs_needed(xhci, urb, i);  in xhci_queue_isoc_tx_prepare()
3773 			   num_trbs, mem_flags);  in xhci_queue_isoc_tx_prepare()