static void netdrv_init_ring (struct net_device *dev);
static int netdrv_start_xmit (struct sk_buff *skb,
struct net_device *dev);
static void netdrv_init_ring (struct net_device *dev);
static int netdrv_start_xmit (struct sk_buff *skb,
struct net_device *dev);
static int netdrv_close (struct net_device *dev);
static int netdrv_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
static struct net_device_stats *netdrv_get_stats (struct net_device *dev);
static int netdrv_close (struct net_device *dev);
static int netdrv_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
static struct net_device_stats *netdrv_get_stats (struct net_device *dev);