linux-zen-desktop/tools/testing/selftests/bpf/progs/test_global_func15.c

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2023-08-30 17:31:07 +02:00
// SPDX-License-Identifier: GPL-2.0-only
#include <stddef.h>
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_misc.h"
__noinline int foo(unsigned int *v)
{
if (v)
*v = bpf_get_prandom_u32();
return 0;
}
SEC("cgroup_skb/ingress")
__failure __msg("At program exit the register R0 has value")
int global_func15(struct __sk_buff *skb)
{
unsigned int v = 1;
foo(&v);
return v;
}