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Date: Tue, 28 Apr 2026 16:54:25 +0200
Message-Id: <DI4VHH97CABG.3VW1RVS2O10K7@kernel.org>
Subject: Re: [PATCH v2 05/11] rust: io: restrict untyped IO access and
 `register!` to `Region`
Cc: "Gary Guo" <gary@garyguo.net>, "Greg Kroah-Hartman"
 <gregkh@linuxfoundation.org>, "Rafael J. Wysocki" <rafael@kernel.org>,
 "Miguel Ojeda" <ojeda@kernel.org>, "Boqun Feng" <boqun@kernel.org>,
 =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= <bjorn3_gh@protonmail.com>, "Benno Lossin"
 <lossin@kernel.org>, "Alice Ryhl" <aliceryhl@google.com>, "Trevor Gross"
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 "Bjorn Helgaas" <bhelgaas@google.com>,
 =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= <kwilczynski@kernel.org>, "Abdiel
 Janulgue" <abdiel.janulgue@gmail.com>, "Robin Murphy"
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To: "Andreas Hindborg" <a.hindborg@kernel.org>
From: "Danilo Krummrich" <dakr@kernel.org>
References: <20260421-io_projection-v2-0-4c251c692ef4@garyguo.net>
 <20260421-io_projection-v2-5-4c251c692ef4@garyguo.net>
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On Tue Apr 28, 2026 at 4:41 PM CEST, Andreas Hindborg wrote:
> That is probably a good call =F0=9F=98=85 Going over the pieces again, I =
am not
> sure when and where I decided this was an index rather than a byte
> offset.

This is not the first time I see someone stumble over this, assuming this h=
as
index semantics, i.e. I assume there might be something creating this
impression.

However, I can't see what that might be (probably I'm too used to the C
primitives). In case you know, I'd be interesting for me to know.