ba2hash
const char *ba2hash(struct bt_arg *, struct dt_evt *);
hash = ba2hash(bkey, dtev);
hash = ba2hash(bkey, dtev);
bv->bv_value = map_get(map, ba2hash(ba->ba_key, dtev));
ba2hash(ba->ba_key, dtev)), dtev);
snprintf(buf, sizeof(buf), "(%s)", ba2hash(ba->ba_value, dtev));
ba2hash(ba->ba_key, dtev)), dtev);