ETH_HEADER_OTHER
vp->max_packet = get_mtu(def) + ETH_HEADER_OTHER;
return get_mtu(def) + ETH_HEADER_OTHER +
(*skb)->data, (*skb)->dev->mtu + ETH_HEADER_OTHER);
skb = dev_alloc_skb(dev->mtu + 2 + ETH_HEADER_OTHER);