static void adjust_subprog_starts(struct bpf_verifier_env *env, u32 off, u32 len)
{
	int i;

	if (len == 1)
		return;
	/* NOTE: fake 'exit' subprog should be updated as well. */
	for (i = 0; i <= env->subprog_cnt; i++) {
		if (env->subprog_info[i].start <= off)
			continue;
		env->subprog_info[i].start += len - 1;
	}
}