MAKE_HASH_KEY
#define MAKE_ALL_SRCS_KEY(p, e) MAKE_HASH_KEY((p), (e), SRC_ID_MASK)
evt_key = MAKE_HASH_KEY(proto_id, evt_id,
evt_key = MAKE_HASH_KEY(proto_id, evt_id,
key = MAKE_HASH_KEY(pd->id, pd->eh->evt_id, src_id);