linux-kernel - Re: [PATCH RFC 1/4] rust: clist: Add abstraction for iterating over C linked lists

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Message-ID: <CANiq72m692bb+W32QN1G+LJa7sHs=gU8k6dri3mu95Smj7GiRw@mail.gmail.com>
Date: Tue, 4 Nov 2025 14:52:03 +0100
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Joel Fernandes <joelagnelf@...dia.com>
Cc: Alexandre Courbot <acourbot@...dia.com>, linux-kernel@...r.kernel.org, 
	rust-for-linux@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	dakr@...nel.org, David Airlie <airlied@...il.com>, Alistair Popple <apopple@...dia.com>, 
	Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
	Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, bjorn3_gh@...tonmail.com, 
	Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>, 
	Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>, 
	Simona Vetter <simona@...ll.ch>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
	John Hubbard <jhubbard@...dia.com>, Timur Tabi <ttabi@...dia.com>, joel@...lfernandes.org, 
	Elle Rhumsaa <elle@...thered-steel.dev>, Daniel Almeida <daniel.almeida@...labora.com>, 
	Andrea Righi <arighi@...dia.com>, Philipp Stanner <phasta@...nel.org>, nouveau@...ts.freedesktop.org, 
	Nouveau <nouveau-bounces@...ts.freedesktop.org>
Subject: Re: [PATCH RFC 1/4] rust: clist: Add abstraction for iterating over C
 linked lists

On Tue, Nov 4, 2025 at 1:58 AM Joel Fernandes <joelagnelf@...dia.com> wrote:
>
> Perhaps wrapping it is #cfg is sufficient.

`cfg` attributes and the `cfg!` macro should work in doctests -- we
have already a few instances, e.g. this hidden one:

    /// ```
    /// # #![cfg(CONFIG_OF)]
    /// use kernel::clk::Hertz;

Cheers,
Miguel