1301 	while ((*tx->head_cpu_ptr) != (tx->last_head)) {  in lan743x_tx_release_completed_descriptors()
1302 		lan743x_tx_release_desc(tx, tx->last_head, false);  in lan743x_tx_release_completed_descriptors()
1303 		tx->last_head = lan743x_tx_next_index(tx, tx->last_head);  in lan743x_tx_release_completed_descriptors()
1311 	original_head = tx->last_head;  in lan743x_tx_release_all_descriptors()
1313 		lan743x_tx_release_desc(tx, tx->last_head, true);  in lan743x_tx_release_all_descriptors()
1314 		tx->last_head = lan743x_tx_next_index(tx, tx->last_head);  in lan743x_tx_release_all_descriptors()
1315 	} while (tx->last_head != original_head);  in lan743x_tx_release_all_descriptors()
1337 	int last_head = tx->last_head;  in lan743x_tx_get_avail_desc()  local
1340 	if (last_tail >= last_head)  in lan743x_tx_get_avail_desc()
1341 		return tx->ring_size - last_tail + last_head - 1;  in lan743x_tx_get_avail_desc()
1343 		return last_head - last_tail - 1;  in lan743x_tx_get_avail_desc()
1867 	tx->last_head = lan743x_csr_read(adapter, TX_HEAD(tx->channel_number));  in lan743x_tx_open()
2001 	if (rx->last_head < 0 || rx->last_head >= rx->ring_size)  in lan743x_rx_process_packet()
2004 	if (rx->last_head != current_head_index) {  in lan743x_rx_process_packet()
2005 		descriptor = &rx->ring_cpu_ptr[rx->last_head];  in lan743x_rx_process_packet()
2012 		first_index = rx->last_head;  in lan743x_rx_process_packet()
2014 			last_index = rx->last_head;  in lan743x_rx_process_packet()
2151 		rx->last_head = lan743x_rx_next_index(rx, real_last_index);  in lan743x_rx_process_packet()
2239 	rx->last_head = 0;  in lan743x_rx_ring_cleanup()
2295 	rx->last_head = 0;  in lan743x_rx_ring_init()
2414 	rx->last_head = lan743x_csr_read(adapter, RX_HEAD(rx->channel_number));  in lan743x_rx_open()
2415 	if (rx->last_head) {  in lan743x_rx_open()