/* Allow changing MTU size. Needs to be overridden for devices supporting jumbo frames.  */
int eth_change_mtu(struct net_device *dev, int new_mtu)
/* Allow changing MTU size. Needs to be overridden for devices supporting jumbo frames.  */
int eth_change_mtu(struct net_device *dev, int new_mtu)
{
	if (new_mtu < 68 || new_mtu > ETH_DATA_LEN)
		return -EINVAL;
	dev->mtu = new_mtu;
	return 0;
}