dma_ring_space 401 drivers/net/ethernet/calxeda/xgmac.c dma_ring_space((p)->tx_head, (p)->tx_tail, DMA_TX_RING_SZ) dma_ring_space 683 drivers/net/ethernet/calxeda/xgmac.c while (dma_ring_space(priv->rx_head, priv->rx_tail, DMA_RX_RING_SZ) > 1) {