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 7 struct S { 8 int x; 9 }; 10 foo(const struct S * s)11__noinline int foo(const struct S *s) 12 { 13 return s ? bpf_get_prandom_u32() < s->x : 0; 14 } 15 16 SEC("cgroup_skb/ingress") 17 __failure __msg("Caller passes invalid args into func#1") global_func11(struct __sk_buff * skb)18int global_func11(struct __sk_buff *skb) 19 { 20 return foo((const void *)skb); 21 } 22