netdev - Re: [PATCH bpf-next 05/11] selftests/bpf: add split BTF basic test

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Date:   Mon, 2 Nov 2020 21:10:07 -0800
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Song Liu <songliubraving@...com>
Cc:     Andrii Nakryiko <andrii@...nel.org>,
        "bpf@...r.kernel.org" <bpf@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Alexei Starovoitov <ast@...com>,
        "daniel@...earbox.net" <daniel@...earbox.net>,
        Kernel Team <Kernel-team@...com>
Subject: Re: [PATCH bpf-next 05/11] selftests/bpf: add split BTF basic test

On Mon, Nov 2, 2020 at 3:36 PM Song Liu <songliubraving@...com> wrote:
>
>
>
> > On Oct 28, 2020, at 5:58 PM, Andrii Nakryiko <andrii@...nel.org> wrote:
> >
> > Add selftest validating ability to programmatically generate and then dump
> > split BTF.
> >
> > Signed-off-by: Andrii Nakryiko <andrii@...nel.org>
>
> Acked-by: Song Liu <songliubraving@...com>
>
> With a nit:
>
> [...]
> >
> > +
> > +static void btf_dump_printf(void *ctx, const char *fmt, va_list args)
> > +{
> > +     vfprintf(ctx, fmt, args);
> > +}
> > +
> > +void test_btf_split() {
> > +     struct btf_dump_opts opts;
> > +     struct btf_dump *d = NULL;
> > +     const struct btf_type *t;
> > +     struct btf *btf1, *btf2 = NULL;
>
> No need to initialize btf2 to NULL.

yep, must be a leftover from earlier version, I'll remove initialization.

>
> > +     int str_off, i, err;
> > +
> > +     btf1 = btf__new_empty();
> > +     if (!ASSERT_OK_PTR(btf1, "empty_main_btf"))
> > +             return;
> > +
> >
>
> [...]
>