event_hash
static DEFINE_HASHTABLE(event_hash, EVENT_HASH_BITS);
hash_for_each_possible(event_hash, event, node, type) {
hash_add(event_hash, &event->node, event->type);
bpf_map__set_max_entries(skel->maps.event_hash, MAX_EVT_HASH);
key_id = bpf_map_lookup_elem(&event_hash, &eid);
} event_hash SEC(".maps");