Re: [PATCH 0/1] fix rustdoc build detection

[Carlos Bilbao <carlos.bilbao.osdev@gmail.com>]

Hey there,

On 11/17/25 05:22, Miguel Ojeda wrote:
> On Mon, Nov 17, 2025 at 11:48 AM Mauro Carvalho Chehab
> <mchehab+huawei@kernel.org> wrote:
>> Sure, Sphinx (including kernel-doc) build and rust doca build are
>> independent. Yet, Makefile "htmldocs" target currently does both.
>>
>> It could make sense to have a separate target if one want to build
>> them both, e.g. something like:
> My understanding (Cc'ing Carlos) is that the idea was that `htmldocs`
> built the Rust docs if possible.


Thanks! I'll also take a look at this, although I fear it'll be complicated
without a way to reproduce what Mauro experienced.


>
> I don't mind if that is changed etc., but I think it is important to
> keep the `rustdoc` target simple and focused: it is a "basic"
> operation (which is also used to lint docs too), and way faster than
> building the HTML docs, and it doesn't depend on them.
>
> Apologies if I put it perhaps a bit too tersely in my previous message
> -- everyone contributing to Rust code is supposed to rely on that
> target to test their commits, and needing the whole Sphinx setup would
> make the target way worse in practice.
>
> Now, in the future, if we start relying on generating references for
> the Rust docs from the C side and things like that (which is my plan,
> but it is long term: first item in
> https://github.com/Rust-for-Linux/linux/issues/350), we may need to
> rethink things a bit (i.e. we may need to run a subset of the kernel
> normal docs to build the Rust docs), but even then ideally we should
> only introduce the minimal dependency needed.
>
> I hope that clarifies -- thanks!
>
> Cheers,
> Miguel

Thanks,

Carlos