FWNET_ALEN
net->addr_len = FWNET_ALEN;
memcpy(haddr, dev->dev_addr, FWNET_ALEN);
return FWNET_ALEN;
u8 u[FWNET_ALEN];
u8 h_dest[FWNET_ALEN]; /* destination address */
if (dev->addr_len != FWNET_ALEN)