linux-kernel - Re: [PATCH 2/3] kbuild: rust: apply `CONFIG

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Date: Wed, 22 May 2024 20:58:46 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc: Miguel Ojeda <ojeda@...nel.org>, Wedson Almeida Filho <wedsonaf@...il.com>, 
	Alex Gaynor <alex.gaynor@...il.com>, Nathan Chancellor <nathan@...nel.org>, 
	Nicolas Schier <nicolas@...sle.eu>, Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
	Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <benno.lossin@...ton.me>, Andreas Hindborg <a.hindborg@...sung.com>, 
	Alice Ryhl <aliceryhl@...gle.com>, linux-kbuild@...r.kernel.org, 
	rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org, 
	patches@...ts.linux.dev
Subject: Re: [PATCH 2/3] kbuild: rust: apply `CONFIG_WERROR` to all Rust targets

On Wed, May 22, 2024 at 7:52 PM Miguel Ojeda
<miguel.ojeda.sandonis@...il.com> wrote:
>
> On Wed, May 22, 2024 at 12:14 PM Masahiro Yamada <masahiroy@...nel.org> wrote:
> >
> > What does "everything else" mean exactly?
>
> Everything but the host programs. Or as many targets as possible, if
> you think there are other cases that we should avoid.


You can do this if rebuilding makes sense
when any CONFIG option is changed.



> > Why is the .config required for generating documentation?
>
> `rustdoc` sees the code in a similar way as the compiler (it uses
> parts of the compiler); in particular, it processes conditional
> compilation like the compiler. So we need a given configuration to
> generate it.

Surprising.

It potentially generates different documentations
depending on the .config file.



-- 
Best Regards
Masahiro Yamada