sh_eth_rxdesc
struct sh_eth_rxdesc *rxdesc = &mdp->rx_ring[i];
ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring;
struct sh_eth_rxdesc *rxdesc = NULL;
rx_ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring;
struct sh_eth_rxdesc *rxdesc;
struct sh_eth_rxdesc *rxdesc;
struct sh_eth_rxdesc *rx_ring;