103 	struct usb_tt		*utt = udev->tt;  in find_tt()
104 	struct ehci_tt		*tt, **tt_index, **ptt;  in find_tt()  local
135 	tt = *ptt;  in find_tt()
136 	if (!tt) {				/* Create the ehci_tt */  in find_tt()
140 		tt = kzalloc(sizeof(*tt), GFP_ATOMIC);  in find_tt()
141 		if (!tt) {  in find_tt()
148 		list_add_tail(&tt->tt_list, &ehci->tt_list);  in find_tt()
149 		INIT_LIST_HEAD(&tt->ps_list);  in find_tt()
150 		tt->usb_tt = utt;  in find_tt()
151 		tt->tt_port = port;  in find_tt()
152 		*ptt = tt;  in find_tt()
155 	return tt;  in find_tt()
161 	struct usb_tt		*utt = udev->tt;  in drop_tt()
162 	struct ehci_tt		*tt, **tt_index, **ptt;  in drop_tt()  local
181 	tt = *ptt;  in drop_tt()
182 	if (!tt || !list_empty(&tt->ps_list))  in drop_tt()
185 	list_del(&tt->tt_list);  in drop_tt()
187 	kfree(tt);  in drop_tt()
214 	struct ehci_tt		*tt;  in reserve_release_intr_bandwidth()  local
247 		tt = find_tt(qh->ps.udev);  in reserve_release_intr_bandwidth()
249 			list_add_tail(&qh->ps.ps_list, &tt->ps_list);  in reserve_release_intr_bandwidth()
255 			tt->bandwidth[i] += tt_usecs;  in reserve_release_intr_bandwidth()
262 		struct ehci_tt *tt)  in compute_tt_budget()  argument
268 	if (!tt)  in compute_tt_budget()
273 	list_for_each_entry(ps, &tt->ps_list, ps_list) {  in compute_tt_budget()
298 	if (!dev1->tt || !dev2->tt)  in same_tt()
300 	if (dev1->tt != dev2->tt)  in same_tt()
302 	if (dev1->tt->multi)  in same_tt()
350 	struct ehci_tt		*tt,  in tt_available()  argument
366 		if (tt->bandwidth[frame] + usecs > 900)  in tt_available()
767 	struct ehci_tt		*tt  in check_intr_schedule()  argument
785 	if (tt_available(ehci, &qh->ps, tt, frame, uframe)) {  in check_intr_schedule()
835 	struct ehci_tt		*tt;  in qh_schedule()  local
847 	tt = find_tt(qh->ps.udev);  in qh_schedule()
848 	if (IS_ERR(tt)) {  in qh_schedule()
849 		status = PTR_ERR(tt);  in qh_schedule()
852 	compute_tt_budget(ehci->tt_budget, tt);  in qh_schedule()
866 						frame, uframe, qh, &c_mask, tt);  in qh_schedule()
874 		status = check_intr_schedule(ehci, 0, 0, qh, &c_mask, tt);  in qh_schedule()
1070 				|| (dev->tt->hub !=  in iso_stream_init()
1072 			addr |= dev->tt->hub->devnum << 16;  in iso_stream_init()
1076 		think_time = dev->tt->think_time;  in iso_stream_init()
1305 	struct ehci_tt		*tt;  in reserve_release_iso_bandwidth()  local
1340 		tt = find_tt(stream->ps.udev);  in reserve_release_iso_bandwidth()
1342 			list_add_tail(&stream->ps.ps_list, &tt->ps_list);  in reserve_release_iso_bandwidth()
1348 			tt->bandwidth[i] += tt_usecs;  in reserve_release_iso_bandwidth()
1378 	struct ehci_tt		*tt  in sitd_slot_ok()  argument
1403 	if (!tt_available(ehci, &stream->ps, tt, frame, uf))  in sitd_slot_ok()
1486 			struct ehci_tt	*tt = find_tt(stream->ps.udev);  in iso_stream_schedule()  local
1488 			if (IS_ERR(tt)) {  in iso_stream_schedule()
1489 				status = PTR_ERR(tt);  in iso_stream_schedule()
1492 			compute_tt_budget(ehci->tt_budget, tt);  in iso_stream_schedule()
1513 							sched, tt))  in iso_stream_schedule()