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selftests/bpf: Enforce returning 0 for fentry/fexit programs

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There are a few fentry/fexit programs returning non-0.
The tests with these programs will break with the previous
patch which enfoced return-0 rules. Fix them properly.

Fixes: ac065870d9 ("selftests/bpf: Add BPF_PROG, BPF_KPROBE, and BPF_KRETPROBE macros")
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200514053207.1298479-1-yhs@fb.com
This commit is contained in:
Yonghong Song 2020-05-13 22:32:07 -07:00 committed by Alexei Starovoitov
parent e92888c72f
commit 6d74f64b92
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/bpf/progs/test_overhead.c
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@ -30,13 +30,13 @@ int prog3(struct bpf_raw_tracepoint_args *ctx)
SEC("fentry/__set_task_comm")
int BPF_PROG(prog4, struct task_struct *tsk, const char *buf, bool exec)
{
return !tsk;
return 0;
}
SEC("fexit/__set_task_comm")
int BPF_PROG(prog5, struct task_struct *tsk, const char *buf, bool exec)
{
return !tsk;
return 0;
}
char _license[] SEC("license") = "GPL";