PF_LLC
.family = PF_LLC,
.family = PF_LLC,
sock_unregister(PF_LLC);
MODULE_ALIAS_NETPROTO(PF_LLC);
sk = llc_sk_alloc(net, PF_LLC, GFP_KERNEL, &llc_proto, kern);
[PF_LLC] = "PF_LLC",
case PF_LLC: