/* adjust mtu, can't be called while device is running  */
static int bcm_enet_change_mtu(struct net_device *dev, int new_mtu)
/* adjust mtu, can't be called while device is running  */
static int bcm_enet_change_mtu(struct net_device *dev, int new_mtu)
{
	int ret;
	if (netif_running(dev))
		return -EBUSY;
	ret = compute_hw_mtu(netdev_priv(dev), new_mtu);
	if (ret)
		return ret;
	dev->mtu = new_mtu;
	return 0;
}