static int verifier_remove_insns(struct bpf_verifier_env *env, u32 off, u32 cnt)
{
	struct bpf_insn_aux_data *aux_data = env->insn_aux_data;
	unsigned int orig_prog_len = env->prog->len;
	int err;

	if (bpf_prog_is_dev_bound(env->prog->aux))
		bpf_prog_offload_remove_insns(env, off, cnt);

	err = bpf_remove_insns(env->prog, off, cnt);
	if (err)
		return err;

	err = adjust_subprog_starts_after_remove(env, off, cnt);
	if (err)
		return err;

	err = bpf_adj_linfo_after_remove(env, off, cnt);
	if (err)
		return err;

	memmove(aux_data + off,	aux_data + off + cnt,
		sizeof(*aux_data) * (orig_prog_len - off - cnt));

	return 0;
}