BPF_LINK_TYPE_CGROUP
BPF_LINK_TYPE(BPF_LINK_TYPE_CGROUP, cgroup)
bpf_link_init(&link->link, BPF_LINK_TYPE_CGROUP, &bpf_cgroup_link_lops,
case BPF_LINK_TYPE_CGROUP:
case BPF_LINK_TYPE_CGROUP:
[BPF_LINK_TYPE_CGROUP] = "cgroup",