__xfrm_dst_hash
h = __xfrm_dst_hash(&x->id.daddr, &x->props.saddr,
h = __xfrm_dst_hash(daddr, saddr, tmpl->reqid, encap_family, state_ptrs.hmask);
h_wildcard = __xfrm_dst_hash(daddr, &saddr_wildcard, tmpl->reqid,
return __xfrm_dst_hash(daddr, saddr, reqid, family, net->xfrm.state_hmask);