BPF_LINK_TYPE_ITER
BPF_LINK_TYPE(BPF_LINK_TYPE_ITER, iter)
bpf_link_init(&link->link, BPF_LINK_TYPE_ITER, &bpf_iter_link_lops, prog,
if (info.type == BPF_LINK_TYPE_ITER &&
case BPF_LINK_TYPE_ITER:
case BPF_LINK_TYPE_ITER:
[BPF_LINK_TYPE_ITER] = "iter",