bpf_map_sum_elem_count
BTF_ID_FLAGS(func, bpf_map_sum_elem_count)
bpf_map_sum_elem_count(map));
BPF_SEQ_PRINTF(seq, "%lld", bpf_map_sum_elem_count(map));
VERIFY(bpf_map_sum_elem_count(map) == 0);
VERIFY(bpf_map_sum_elem_count(map) == HALF_ENTRIES);