138 	priv->tx_tail = 0;  in moxart_mac_setup_desc_ring()
285 	return CIRC_SPACE(priv->tx_head, priv->tx_tail, TX_DESC_NUM);  in moxart_tx_queue_space()
292 	unsigned int tx_tail = priv->tx_tail;  in moxart_tx_finished()  local
294 	while (tx_tail != tx_head) {  in moxart_tx_finished()
295 		dma_unmap_single(&ndev->dev, priv->tx_mapping[tx_tail],  in moxart_tx_finished()
296 				 priv->tx_len[tx_tail], DMA_TO_DEVICE);  in moxart_tx_finished()
299 		ndev->stats.tx_bytes += priv->tx_skb[tx_tail]->len;  in moxart_tx_finished()
301 		dev_kfree_skb_irq(priv->tx_skb[tx_tail]);  in moxart_tx_finished()
302 		priv->tx_skb[tx_tail] = NULL;  in moxart_tx_finished()
304 		tx_tail = TX_NEXT(tx_tail);  in moxart_tx_finished()
306 	priv->tx_tail = tx_tail;  in moxart_tx_finished()