1// SPDX-License-Identifier: GPL-2.0-only
2#include <stddef.h>
3#include <linux/bpf.h>
4#include <bpf/bpf_helpers.h>
5#include "bpf_misc.h"
6
7struct S {
8 int x;
9};
10
11__noinline int foo(const struct S *s)
12{
13 if (s)
14 return bpf_get_prandom_u32() < s->x;
15
16 return 0;
17}
18
19SEC("cgroup_skb/ingress")
20__failure __msg("Caller passes invalid args into func#1")
21int global_func13(struct __sk_buff *skb)
22{
23 const struct S *s = (const struct S *)(0xbedabeda);
24
25 return foo(s);
26}
27

source code of linux/tools/testing/selftests/bpf/progs/test_global_func13.c