PF_SMC
.family = PF_SMC,
.family = PF_SMC,
sock_unregister(PF_SMC);
sock_unregister(PF_SMC);
MODULE_ALIAS_NETPROTO(PF_SMC);
sk = sk_alloc(net, PF_SMC, GFP_KERNEL, prot, 0);
[PF_SMC] = "PF_SMC",
case PF_SMC: