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From: Masahiro Yamada <masahiroy@kernel.org>
Date: Wed, 22 May 2024 20:58:46 +0900
Message-ID: <CAK7LNAQkUik_VW7j-d56Pr4NnExxDnjMfWSwtxvijH4q4Onctg@mail.gmail.com>
Subject: Re: [PATCH 2/3] kbuild: rust: apply `CONFIG_WERROR` to all Rust targets
To: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Miguel Ojeda <ojeda@kernel.org>, Wedson Almeida Filho <wedsonaf@gmail.com>, 
	Alex Gaynor <alex.gaynor@gmail.com>, Nathan Chancellor <nathan@kernel.org>, 
	Nicolas Schier <nicolas@fjasle.eu>, Boqun Feng <boqun.feng@gmail.com>, Gary Guo <gary@garyguo.net>, 
	=?UTF-8?Q?Bj=C3=B6rn_Roy_Baron?= <bjorn3_gh@protonmail.com>, 
	Benno Lossin <benno.lossin@proton.me>, Andreas Hindborg <a.hindborg@samsung.com>, 
	Alice Ryhl <aliceryhl@google.com>, linux-kbuild@vger.kernel.org, 
	rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, 
	patches@lists.linux.dev
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On Wed, May 22, 2024 at 7:52=E2=80=AFPM Miguel Ojeda
<miguel.ojeda.sandonis@gmail.com> wrote:
>
> On Wed, May 22, 2024 at 12:14=E2=80=AFPM Masahiro Yamada <masahiroy@kerne=
l.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.


--=20
Best Regards
Masahiro Yamada