linux-kernel - Re: [PATCH v2 4/5] rust: io: add `register!` macro

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <DFUBWX3HTXBL.34H3IZ0OGX4IA@garyguo.net>
Date: Wed, 21 Jan 2026 14:15:37 +0000
From: "Gary Guo" <gary@...yguo.net>
To: "Alexandre Courbot" <acourbot@...dia.com>, "Danilo Krummrich"
 <dakr@...nel.org>, "Alice Ryhl" <aliceryhl@...gle.com>, "Daniel Almeida"
 <daniel.almeida@...labora.com>, "Miguel Ojeda" <ojeda@...nel.org>, "Boqun
 Feng" <boqun.feng@...il.com>, "Gary Guo" <gary@...yguo.net>,
 Björn Roy Baron <bjorn3_gh@...tonmail.com>, "Benno Lossin"
 <lossin@...nel.org>, "Andreas Hindborg" <a.hindborg@...nel.org>, "Trevor
 Gross" <tmgross@...ch.edu>
Cc: "Yury Norov" <yury.norov@...il.com>, "John Hubbard"
 <jhubbard@...dia.com>, "Alistair Popple" <apopple@...dia.com>, "Joel
 Fernandes" <joelagnelf@...dia.com>, "Timur Tabi" <ttabi@...dia.com>, "Edwin
 Peer" <epeer@...dia.com>, "Eliot Courtney" <ecourtney@...dia.com>, "Dirk
 Behme" <dirk.behme@...bosch.com>, "Steven Price" <steven.price@....com>,
 <rust-for-linux@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 4/5] rust: io: add `register!` macro

On Wed Jan 21, 2026 at 7:23 AM GMT, Alexandre Courbot wrote:
> Add a macro for defining hardware register types with I/O accessors.
> 
> Each register field is represented as a `Bounded` of the appropriate bit
> width, ensuring field values are never silently truncated.
> 
> Fields can optionally be converted to/from custom types, either fallibly
> or infallibly.
> 
> The address of registers can be direct, relative, or indexed, supporting
> most of the patterns in which registers are arranged.
> 
> Signed-off-by: Alexandre Courbot <acourbot@...dia.com>

It looks like this is still based on the current Io impl. I think with Zhi's new
Io trait this will look quite different.

Best,
Gary

> ---
>  rust/kernel/io.rs          |    1 +
>  rust/kernel/io/register.rs | 1198 ++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 1199 insertions(+)