linux-kernel - Re: [PATCH] scripts: generate_rust_analyzer.py: add missing macros -> core dep

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Message-ID: <CANiq72=sCeT0xwmszLZ-sOyH5YdOvvbzSgMsz5SgzF_wRJTbxA@mail.gmail.com>
Date: Sun, 9 Feb 2025 18:05:32 +0100
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Tamir Duberstein <tamird@...il.com>
Cc: Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
	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@...nel.org>, 
	Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>, 
	Boris-Chengbiao Zhou <bobo1239@....de>, Fiona Behrens <me@...enk.dev>, Kees Cook <kees@...nel.org>, 
	Wedson Almeida Filho <wedsonaf@...gle.com>, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Chayim Refael Friedman <chayimfr@...il.com>, 
	Lukas Wirth <lukas.wirth@...rous-systems.com>, 
	Daniel Almeida <daniel.almeida@...labora.com>
Subject: Re: [PATCH] scripts: generate_rust_analyzer.py: add missing macros ->
 core dep

On Sun, Feb 9, 2025 at 5:49 PM Tamir Duberstein <tamird@...il.com> wrote:
>
> Ah, I see! I'm happy to do that in this patch if you think it's worth it.

I don't know if it is worth it (it requires testing it, I guess) -- we
can go simple until we see we need it, especially for a fix.

> The python function `append_crate` takes both `deps` and
> `is_proc_macro`, so implying dependencies based on the value of
> `is_proc_macro` could create duplication.

Yes, but the dependencies for proc macros are a completely different
set -- that is what I was discussing above. And those dependencies
will be shared across all proc macros, when/if we have several
eventually (e.g. per subsystem).

That is why, since we already have `is_proc_macro`, I think we should
just use that. It may make sense to split `append_crate` into two
functions or similar, e.g. having a `append_proc_macro_crate` (that
perhaps does not require any dependencies) -- it would be the same
idea but cleaner.

Anyway, the simpler the change, the better, especially for a fix. But
please take it into consideration.

Cheers,
Miguel