linux-kernel - Re: [PATCH bpf-next] bpf, doc: use internal linking for link to netdev FAQ

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Date:   Tue, 14 Mar 2023 10:25:58 +0700
From:   Bagas Sanjaya <bagasdotme@...il.com>
To:     Jonathan Corbet <corbet@....net>, David Vernet <void@...ifault.com>
Cc:     Linux BPF <bpf@...r.kernel.org>,
        Linux Documentation <linux-doc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <martin.lau@...ux.dev>,
        Song Liu <song@...nel.org>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        "Tobin C. Harding" <me@...in.cc>
Subject: Re: [PATCH bpf-next] bpf, doc: use internal linking for link to
 netdev FAQ

On 3/13/23 20:37, Jonathan Corbet wrote:
> David Vernet <void@...ifault.com> writes:
> 
>> Sure, but there are practicalities to consider here. It takes O(minutes)
>> to do a full docs build, as opposed to O(seconds). I've done reviews of
>> docs patches where the engineer tried to build the docs tree, but
>> thought it was hung and ended up cancelling it. Full docs builds also
>> unfortunately spew quite a few warnings in other subtrees. You have to
>> carefully wade through the warnings in those other subtrees to ensure
>> you haven't added any new ones.
>>

I have tried to add CONFIG_COMPILE_TEST + CONFIG_WARN_MISSING_DOCUMENTS
+ CONFIG_WARN_ABI_ERRORS when performing htmldocs build, but hangs on
checking missing documents (even I noticed this behavior when cleandocs).

> I get your point, but that is essentially saying that there should be no
> linkages between our documentation subtrees, which defeats much of the
> purpose of using a system like Sphinx.
> 

I mean external referencing to docs.kernel.org when simple internal linking
below should suffice, right?

> In this specific case, though, there is a better solution.  Text like:
> 
>   see the netdev FAQ (Documentation/process/maintainer-netdev.rst)
> 
> will add links in the built docs, and also tells readers of the
> plain-text files where they should be looking.  Without adding warnings.
> 

OK.

In 287f4fa99a5281, Sphinx generates netdev-FAQ crossref as link to
`/process/maintainer-netdev.html#netdev-faq`, due to use of external
link syntax.

Thanks.

-- 
An old man doll... just what I always wanted! - Clara