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Date:   Thu, 17 Sep 2020 07:57:56 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc:     Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        Jonathan Corbet <corbet@....net>,
        Alexei Starovoitov <ast@...nel.org>,
        Andrii Nakryiko <andriin@...com>,
        Daniel Borkmann <daniel@...earbox.net>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...omium.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        bpf <bpf@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>,
        Network Development <netdev@...r.kernel.org>
Subject: Re: [PATCH 3/3] docs: bpf: ringbuf.rst: fix a broken cross-reference

On Thu, Sep 17, 2020 at 1:04 AM Mauro Carvalho Chehab
<mchehab+huawei@...nel.org> wrote:
>
> Sphinx warns about a broken cross-reference:
>
>         Documentation/bpf/ringbuf.rst:194: WARNING: Unknown target name: "bench_ringbufs.c".
>
> It seems that the original idea were to add a reference for this file:
>
>         tools/testing/selftests/bpf/benchs/bench_ringbufs.c
>
> However, this won't work as such file is not part of the
> documentation output dir. It could be possible to use
> an extension like interSphinx in order to make external
> references to be pointed to some website (like kernel.org),
> where the file is stored, but currently we don't use it.
>
> It would also be possible to include this file as a
> literal include, placing it inside Documentation/bpf.
>
> For now, let's take the simplest approach: just drop
> the "_" markup at the end of the reference. This
> should solve the warning, and it sounds quite obvious
> that the file to see is at the Kernel tree.
>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
> ---
>  Documentation/bpf/ringbuf.rst | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Documentation/bpf/ringbuf.rst b/Documentation/bpf/ringbuf.rst
> index 4d4f3bcb1477..6a615cd62bda 100644
> --- a/Documentation/bpf/ringbuf.rst
> +++ b/Documentation/bpf/ringbuf.rst
> @@ -197,7 +197,7 @@ a self-pacing notifications of new data being availability.
>  being available after commit only if consumer has already caught up right up to
>  the record being committed. If not, consumer still has to catch up and thus
>  will see new data anyways without needing an extra poll notification.
> -Benchmarks (see tools/testing/selftests/bpf/benchs/bench_ringbufs.c_) show that
> +Benchmarks (see tools/testing/selftests/bpf/benchs/bench_ringbufs.c) show that

This fix already landed in bpf and net trees.
Did you miss it?

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