LOOKUP_CACHE
if (LOOKUP_CACHE(flags)) {
if (!LOOKUP_CACHE(flags) || CACHE_LAST(hdp) == NULL ||
if (!LOOKUP_CACHE(flags) || CACHE_LAST(hdp) == NULL) {
if (LOOKUP_CACHE(flags) && cmnp) {
if (LOOKUP_CACHE(tnp->flags)) {