42 	struct xhci_segment *seg;  in xhci_segment_alloc()  local
46 	seg = kzalloc(sizeof *seg, flags);  in xhci_segment_alloc()
47 	if (!seg)  in xhci_segment_alloc()
50 	seg->trbs = dma_pool_alloc(xhci->segment_pool, flags, &dma);  in xhci_segment_alloc()
51 	if (!seg->trbs) {  in xhci_segment_alloc()
52 		kfree(seg);  in xhci_segment_alloc()
56 	memset(seg->trbs, 0, TRB_SEGMENT_SIZE);  in xhci_segment_alloc()
60 			seg->trbs[i].link.control |= cpu_to_le32(TRB_CYCLE);  in xhci_segment_alloc()
62 	seg->dma = dma;  in xhci_segment_alloc()
63 	seg->next = NULL;  in xhci_segment_alloc()
65 	return seg;  in xhci_segment_alloc()
68 static void xhci_segment_free(struct xhci_hcd *xhci, struct xhci_segment *seg)  in xhci_segment_free()  argument
70 	if (seg->trbs) {  in xhci_segment_free()
71 		dma_pool_free(xhci->segment_pool, seg->trbs, seg->dma);  in xhci_segment_free()
72 		seg->trbs = NULL;  in xhci_segment_free()
74 	kfree(seg);  in xhci_segment_free()
80 	struct xhci_segment *seg;  in xhci_free_segments_for_ring()  local
82 	seg = first->next;  in xhci_free_segments_for_ring()
83 	while (seg != first) {  in xhci_free_segments_for_ring()
84 		struct xhci_segment *next = seg->next;  in xhci_free_segments_for_ring()
85 		xhci_segment_free(xhci, seg);  in xhci_free_segments_for_ring()
86 		seg = next;  in xhci_free_segments_for_ring()
185 		struct xhci_segment *seg,  in xhci_insert_segment_mapping()  argument
191 	key = (unsigned long)(seg->dma >> TRB_SEGMENT_SHIFT);  in xhci_insert_segment_mapping()
206 		struct xhci_segment *seg)  in xhci_remove_segment_mapping()  argument
210 	key = (unsigned long)(seg->dma >> TRB_SEGMENT_SHIFT);  in xhci_remove_segment_mapping()
222 	struct xhci_segment *seg;  in xhci_update_stream_segment_mapping()  local
229 	seg = first_seg;  in xhci_update_stream_segment_mapping()
232 				ring, seg, mem_flags);  in xhci_update_stream_segment_mapping()
235 		if (seg == last_seg)  in xhci_update_stream_segment_mapping()
237 		seg = seg->next;  in xhci_update_stream_segment_mapping()
238 	} while (seg != first_seg);  in xhci_update_stream_segment_mapping()
243 	failed_seg = seg;  in xhci_update_stream_segment_mapping()
244 	seg = first_seg;  in xhci_update_stream_segment_mapping()
246 		xhci_remove_segment_mapping(trb_address_map, seg);  in xhci_update_stream_segment_mapping()
247 		if (seg == failed_seg)  in xhci_update_stream_segment_mapping()
249 		seg = seg->next;  in xhci_update_stream_segment_mapping()
250 	} while (seg != first_seg);  in xhci_update_stream_segment_mapping()
257 	struct xhci_segment *seg;  in xhci_remove_stream_mapping()  local
262 	seg = ring->first_seg;  in xhci_remove_stream_mapping()
264 		xhci_remove_segment_mapping(ring->trb_address_map, seg);  in xhci_remove_stream_mapping()
265 		seg = seg->next;  in xhci_remove_stream_mapping()
266 	} while (seg != ring->first_seg);  in xhci_remove_stream_mapping()
429 	struct xhci_segment	*seg = ring->first_seg;  in xhci_reinit_cached_ring()  local
433 		memset(seg->trbs, 0,  in xhci_reinit_cached_ring()
437 				seg->trbs[i].link.control |=  in xhci_reinit_cached_ring()
441 		xhci_link_segments(xhci, seg, seg->next, type);  in xhci_reinit_cached_ring()
442 		seg = seg->next;  in xhci_reinit_cached_ring()
443 	} while (seg != ring->first_seg);  in xhci_reinit_cached_ring()
1904 	struct xhci_segment *seg;  in xhci_test_trb_in_td()  local
1909 	seg = trb_in_td(xhci, input_seg, start_trb, end_trb, input_dma, false);  in xhci_test_trb_in_td()
1910 	if (seg != result_seg) {  in xhci_test_trb_in_td()
1922 				result_seg, seg);  in xhci_test_trb_in_td()
2323 	struct xhci_segment	*seg;  in xhci_mem_init()  local
2483 	for (val = 0, seg = xhci->event_ring->first_seg; val < ERST_NUM_SEGS; val++) {  in xhci_mem_init()
2485 		entry->seg_addr = cpu_to_le64(seg->dma);  in xhci_mem_init()
2488 		seg = seg->next;  in xhci_mem_init()