242 	struct ring_desc *rdesc;  in ring_desc_get()  local
247 	rdesc = list_first_entry(&sqi->bd_list_free, struct ring_desc, list);  in ring_desc_get()
248 	list_move_tail(&rdesc->list, &sqi->bd_list_used);  in ring_desc_get()
249 	return rdesc;  in ring_desc_get()
252 static void ring_desc_put(struct pic32_sqi *sqi, struct ring_desc *rdesc)  in ring_desc_put()  argument
254 	list_move(&rdesc->list, &sqi->bd_list_free);  in ring_desc_put()
263 	struct ring_desc *rdesc;  in pic32_sqi_one_transfer()  local
298 		rdesc = ring_desc_get(sqi);  in pic32_sqi_one_transfer()
299 		if (!rdesc)  in pic32_sqi_one_transfer()
302 		bd = rdesc->bd;  in pic32_sqi_one_transfer()
305 		rdesc->xfer_len = sg_dma_len(sg);  in pic32_sqi_one_transfer()
307 		bd->bd_ctrl |= rdesc->xfer_len;  in pic32_sqi_one_transfer()
343 	struct ring_desc *rdesc, *next;  in pic32_sqi_one_message()  local
397 	rdesc = list_last_entry(&sqi->bd_list_used, struct ring_desc, list);  in pic32_sqi_one_message()
398 	rdesc->bd->bd_ctrl |= BD_LAST | BD_CS_DEASSERT |  in pic32_sqi_one_message()
402 	rdesc = list_first_entry(&sqi->bd_list_used, struct ring_desc, list);  in pic32_sqi_one_message()
403 	writel(rdesc->bd_dma, sqi->regs + PESQI_BD_BASE_ADDR_REG);  in pic32_sqi_one_message()
430 	list_for_each_entry_safe_reverse(rdesc, next,  in pic32_sqi_one_message()
433 		msg->actual_length += rdesc->xfer_len;  in pic32_sqi_one_message()
435 		ring_desc_put(sqi, rdesc);  in pic32_sqi_one_message()
456 	struct ring_desc *rdesc;  in ring_desc_ring_alloc()  local
470 	sqi->ring = kcalloc(PESQI_BD_COUNT, sizeof(*rdesc), GFP_KERNEL);  in ring_desc_ring_alloc()
484 	for (i = 0, rdesc = sqi->ring; i < PESQI_BD_COUNT; i++, rdesc++) {  in ring_desc_ring_alloc()
485 		INIT_LIST_HEAD(&rdesc->list);  in ring_desc_ring_alloc()
486 		rdesc->bd = &bd[i];  in ring_desc_ring_alloc()
487 		rdesc->bd_dma = sqi->bd_dma + (void *)&bd[i] - (void *)bd;  in ring_desc_ring_alloc()
488 		list_add_tail(&rdesc->list, &sqi->bd_list_free);  in ring_desc_ring_alloc()
492 	for (i = 0, rdesc = sqi->ring; i < PESQI_BD_COUNT - 1; i++)  in ring_desc_ring_alloc()
493 		bd[i].bd_nextp = rdesc[i + 1].bd_dma;  in ring_desc_ring_alloc()