__dev_map_hash_lookup_elem
__dev_map_hash_lookup_elem);
dev = __dev_map_hash_lookup_elem(map, idx);
struct bpf_dtab_netdev *obj = __dev_map_hash_lookup_elem(map,
old_dev = __dev_map_hash_lookup_elem(map, k);
old_dev = __dev_map_hash_lookup_elem(map, idx);