FLK_NLM_UNKNOWN
case FLK_NLM_UNKNOWN:
FLK_REGISTRY_CHANGE_NLM_STATE(nlm_reg_status, nlmid, FLK_NLM_UNKNOWN);
nlm_reg_status[i] = FLK_NLM_UNKNOWN;
((nlmreg)[nlmid] == FLK_NLM_UNKNOWN)