901 	struct xgene_dma_desc_sw *first = NULL, *new = NULL;  in xgene_dma_prep_sg()  local
936 		new = xgene_dma_alloc_descriptor(chan);  in xgene_dma_prep_sg()
937 		if (!new)  in xgene_dma_prep_sg()
941 		xgene_dma_prep_cpy_desc(chan, new, dst, src, len);  in xgene_dma_prep_sg()
944 			first = new;  in xgene_dma_prep_sg()
946 		new->tx.cookie = 0;  in xgene_dma_prep_sg()
947 		async_tx_ack(&new->tx);  in xgene_dma_prep_sg()
954 		list_add_tail(&new->node, &first->tx_list);  in xgene_dma_prep_sg()
988 	if (!new)  in xgene_dma_prep_sg()
991 	new->tx.flags = flags; /* client is in control of this ack */  in xgene_dma_prep_sg()
992 	new->tx.cookie = -EBUSY;  in xgene_dma_prep_sg()
993 	list_splice(&first->tx_list, &new->tx_list);  in xgene_dma_prep_sg()
995 	return &new->tx;  in xgene_dma_prep_sg()
1008 	struct xgene_dma_desc_sw *first = NULL, *new;  in xgene_dma_prep_xor()  local
1020 		new = xgene_dma_alloc_descriptor(chan);  in xgene_dma_prep_xor()
1021 		if (!new)  in xgene_dma_prep_xor()
1025 		xgene_dma_prep_xor_desc(chan, new, &dst, src,  in xgene_dma_prep_xor()
1029 			first = new;  in xgene_dma_prep_xor()
1031 		new->tx.cookie = 0;  in xgene_dma_prep_xor()
1032 		async_tx_ack(&new->tx);  in xgene_dma_prep_xor()
1035 		list_add_tail(&new->node, &first->tx_list);  in xgene_dma_prep_xor()
1038 	new->tx.flags = flags; /* client is in control of this ack */  in xgene_dma_prep_xor()
1039 	new->tx.cookie = -EBUSY;  in xgene_dma_prep_xor()
1040 	list_splice(&first->tx_list, &new->tx_list);  in xgene_dma_prep_xor()
1042 	return &new->tx;  in xgene_dma_prep_xor()
1056 	struct xgene_dma_desc_sw *first = NULL, *new;  in xgene_dma_prep_pq()  local
1082 		new = xgene_dma_alloc_descriptor(chan);  in xgene_dma_prep_pq()
1083 		if (!new)  in xgene_dma_prep_pq()
1087 			first = new;  in xgene_dma_prep_pq()
1089 		new->tx.cookie = 0;  in xgene_dma_prep_pq()
1090 		async_tx_ack(&new->tx);  in xgene_dma_prep_pq()
1093 		list_add_tail(&new->node, &first->tx_list);  in xgene_dma_prep_pq()
1100 			xgene_dma_prep_xor_desc(chan, new, &dst[0], src,  in xgene_dma_prep_pq()
1110 			xgene_dma_prep_xor_desc(chan, new, &dst[1], _src,  in xgene_dma_prep_pq()
1115 	new->tx.flags = flags; /* client is in control of this ack */  in xgene_dma_prep_pq()
1116 	new->tx.cookie = -EBUSY;  in xgene_dma_prep_pq()
1117 	list_splice(&first->tx_list, &new->tx_list);  in xgene_dma_prep_pq()
1119 	return &new->tx;  in xgene_dma_prep_pq()