int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data)
static int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data)
int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data){	nic_t *sp = dev->priv;	if (data)		sp->rx_csum = 1;	else		sp->rx_csum = 0;	return 0;}