linux-kernel - Re: [PATCH v2 2/6] rust: io: Support copying arrays and slices

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Message-Id: <DG5G57S9G1HK.3T2CT6RLURWPT@kernel.org>
Date: Tue, 03 Feb 2026 16:53:51 +0100
From: "Danilo Krummrich" <dakr@...nel.org>
To: "Matthew Maurer" <mmaurer@...gle.com>
Cc: "Bjorn Andersson" <andersson@...nel.org>, "Konrad Dybcio"
 <konradybcio@...nel.org>, "Satya Durga Srinivasu Prabhala"
 <satyap@...cinc.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>, "Alice
 Ryhl" <aliceryhl@...gle.com>, "Trevor Gross" <tmgross@...ch.edu>, "Daniel
 Almeida" <daniel.almeida@...labora.com>, "Greg Kroah-Hartman"
 <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>,
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 "Michal Wilczynski" <m.wilczynski@...sung.com>, "Dave Ertman"
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 Romanovsky" <leon@...nel.org>, "Trilok Soni" <tsoni@...cinc.com>,
 <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
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Subject: Re: [PATCH v2 2/6] rust: io: Support copying arrays and slices

On Tue Feb 3, 2026 at 4:46 PM CET, Matthew Maurer wrote:
> Adds support for doing array copies of data in and out of IO regions.
> Fixed size arrays allow for compile-time bound checking, while slice
> arguments allow for dynamically checked copies.
>
> Signed-off-by: Matthew Maurer <mmaurer@...gle.com>

This patch needs to go on top of the recent I/O rework and should be generalized
through an IoSlice type [1].

[1] https://rust-for-linux.zulipchat.com/#narrow/channel/288089-General/topic/Generic.20I.2FO.20backends/with/571639597