1054 static struct descriptor *find_branch_descriptor(struct descriptor *d, int z)  in find_branch_descriptor()  argument
1061 	if (z == 2 && branch == cpu_to_le16(DESCRIPTOR_BRANCH_ALWAYS))  in find_branch_descriptor()
1064 		return d + z - 1;  in find_branch_descriptor()
1072 	int z;  in context_tasklet()  local
1081 		z = address & 0xf;  in context_tasklet()
1092 		last = find_branch_descriptor(d, z);  in context_tasklet()
1189 						  int z, dma_addr_t *d_bus)  in context_get_descriptors()  argument
1194 	if (z * sizeof(*d) > desc->buffer_size)  in context_get_descriptors()
1197 	if (z * sizeof(*d) > desc->buffer_size - desc->used) {  in context_get_descriptors()
1213 	memset(d, 0, z * sizeof(*d));  in context_get_descriptors()
1232 			   struct descriptor *d, int z, int extra)  in context_append()  argument
1240 	desc->used += (z + extra) * sizeof(*d);  in context_append()
1245 	d_branch->branch_address = cpu_to_le32(d_bus | z);  in context_append()
1260 		ctx->prev->branch_address = cpu_to_le32(d_bus | z);  in context_append()
1264 	ctx->prev_z = z;  in context_append()
1305 	int z, tcode;  in at_context_queue_packet()  local
1398 		z = 3;  in at_context_queue_packet()
1401 		z = 2;  in at_context_queue_packet()
1417 	context_append(ctx, d, z, 4 - z);  in at_context_queue_packet()
3210 	u32 z, header_z, payload_z, irq;  in queue_iso_transmit()  local
3218 		z = 1;  in queue_iso_transmit()
3220 		z = 2;  in queue_iso_transmit()
3222 		z++;  in queue_iso_transmit()
3231 	z += payload_z;  in queue_iso_transmit()
3236 	d = context_get_descriptors(&ctx->context, z + header_z, &d_bus);  in queue_iso_transmit()
3250 		d[0].branch_address = cpu_to_le32(d_bus | z);  in queue_iso_transmit()
3265 		d[2].data_address = cpu_to_le32(d_bus + z * sizeof(*d));  in queue_iso_transmit()
3266 		memcpy(&d[z], p->header, p->header_length);  in queue_iso_transmit()
3269 	pd = d + z - payload_z;  in queue_iso_transmit()
3294 	last = z == 2 ? d : d + z - 1;  in queue_iso_transmit()
3300 	context_append(&ctx->context, d, z, header_z);  in queue_iso_transmit()
3313 	u32 z, header_z, rest;  in queue_iso_packet_per_buffer()  local
3332 		z = DIV_ROUND_UP(payload_per_buffer + offset, PAGE_SIZE) + 1;  in queue_iso_packet_per_buffer()
3334 				z + header_z, &d_bus);  in queue_iso_packet_per_buffer()
3345 		d->data_address = cpu_to_le32(d_bus + (z * sizeof(*d)));  in queue_iso_packet_per_buffer()
3349 		for (j = 1; j < z; j++) {  in queue_iso_packet_per_buffer()
3380 		context_append(&ctx->context, d, z, header_z);  in queue_iso_packet_per_buffer()
3393 	int page, offset, rest, z, i, length;  in queue_iso_buffer_fill()  local
3400 	z = DIV_ROUND_UP(offset + rest, PAGE_SIZE);  in queue_iso_buffer_fill()
3402 	if (WARN_ON(offset & 3 || rest & 3 || page + z > buffer->page_count))  in queue_iso_buffer_fill()
3405 	for (i = 0; i < z; i++) {  in queue_iso_buffer_fill()
3414 		if (packet->interrupt && i == z - 1)  in queue_iso_buffer_fill()