linux-kernel - Re: [PATCH v5 0/9] Introduce bitfield and move register macro to rust/kernel/

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Message-Id: <DD68A3TZD9CV.2CL7R7K4UAICU@kernel.org>
Date: Tue, 30 Sep 2025 17:08:50 +0200
From: "Danilo Krummrich" <dakr@...nel.org>
To: "Joel Fernandes" <joelagnelf@...dia.com>
Cc: <linux-kernel@...r.kernel.org>, <rust-for-linux@...r.kernel.org>,
 <dri-devel@...ts.freedesktop.org>, <acourbot@...dia.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>, "David
 Airlie" <airlied@...il.com>, "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>, "Yury
 Norov" <yury.norov@...il.com>, "Daniel Almeida"
 <daniel.almeida@...labora.com>, "Andrea Righi" <arighi@...dia.com>,
 <nouveau@...ts.freedesktop.org>
Subject: Re: [PATCH v5 0/9] Introduce bitfield and move register macro to
 rust/kernel/

On Tue Sep 30, 2025 at 4:45 PM CEST, Joel Fernandes wrote:
>  MAINTAINERS                                   |   7 +
>  drivers/gpu/nova-core/falcon.rs               |   2 +-
>  drivers/gpu/nova-core/falcon/gsp.rs           |   4 +-
>  drivers/gpu/nova-core/falcon/sec2.rs          |   2 +-
>  drivers/gpu/nova-core/regs.rs                 |   6 +-
>  rust/kernel/bitfield.rs                       | 804 ++++++++++++++++++
>  rust/kernel/io.rs                             |   1 +
>  .../macros.rs => rust/kernel/io/register.rs   | 317 +------
>  rust/kernel/lib.rs                            |   1 +
>  security/Kconfig.hardening                    |   9 +
>  10 files changed, 870 insertions(+), 283 deletions(-)
>  create mode 100644 rust/kernel/bitfield.rs
>  rename drivers/gpu/nova-core/regs/macros.rs => rust/kernel/io/register.rs (72%)

I think we have at least three or four potential target trees for this:
driver-core (I/O), drm-rust (Nova), bitmap / Rust.

(I don't know which tree the bitmap stuff would go through, I did not find a
tree entry in the MAINTAINERS file.)

Unless someone thinks otherwise, I'd take it through the drm-rust tree once the
series is ready. This should cause the least conflicts and as a bonus enable Tyr
to use it right away.