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Date:   Tue, 8 Sep 2020 13:11:36 -0700
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        Andrii Nakryiko <andriin@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...omium.org>,
        Jesper Dangaard Brouer <brouer@...hat.com>
Subject: Re: [PATCH] perf tools: Do not use deprecated bpf_program__title

On Mon, Sep 7, 2020 at 10:57 AM Jiri Olsa <jolsa@...nel.org> wrote:
>
> The bpf_program__title function got deprecated in libbpf,
> use the suggested alternative.
>
> Fixes: 521095842027 ("libbpf: Deprecate notion of BPF program "title" in favor of "section name"")
> Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> ---

Hey Jiri,

Didn't see your patch before I sent mine against bpf-next. I also
removed some unnecessary checks there. Please see [0]. I don't care
which one gets applied, btw.

  [0] https://patchwork.ozlabs.org/project/netdev/patch/20200908180127.1249-1-andriin@fb.com/

>  tools/perf/util/bpf-loader.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
> index 2feb751516ab..73de3973c8ec 100644
> --- a/tools/perf/util/bpf-loader.c
> +++ b/tools/perf/util/bpf-loader.c
> @@ -328,7 +328,7 @@ config_bpf_program(struct bpf_program *prog)
>         probe_conf.no_inlines = false;
>         probe_conf.force_add = false;
>
> -       config_str = bpf_program__title(prog, false);
> +       config_str = bpf_program__section_name(prog);
>         if (IS_ERR(config_str)) {
>                 pr_debug("bpf: unable to get title for program\n");
>                 return PTR_ERR(config_str);
> @@ -454,7 +454,7 @@ preproc_gen_prologue(struct bpf_program *prog, int n,
>         if (err) {
>                 const char *title;
>
> -               title = bpf_program__title(prog, false);
> +               title = bpf_program__section_name(prog);
>                 if (!title)
>                         title = "[unknown]";
>
> --
> 2.26.2
>

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