if (netif_running(dev)) err = sky2_up(dev); 
if (dev->mtu > ETH_DATA_LEN) mode |= GM_SMOD_JUMBO_ENA; 
static int sky2_change_mtu(struct net_device *dev, int new_mtu){	int err = 0;	if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)		return -EINVAL;	if (netif_running(dev))		sky2_down(dev);	dev->mtu = new_mtu;	if (netif_running(dev))		err = sky2_up(dev);	return err;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/6b1a3aefd897fd9be410d192f950656ef2b59694/sky2.c/buggy/drivers/net/sky2.c