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Date: Tue, 20 Jan 2026 17:09:13 +0100
Message-Id: <DFTJPCU9NQQ5.1J4RRDVZH3SX@kernel.org>
Subject: Re: [PATCH v10 2/5] rust: io: separate generic I/O helpers from
 MMIO implementation
Cc: "Alice Ryhl" <aliceryhl@google.com>, "Zhi Wang" <zhiw@nvidia.com>,
 <rust-for-linux@vger.kernel.org>, <linux-pci@vger.kernel.org>,
 <linux-kernel@vger.kernel.org>, <bhelgaas@google.com>,
 <kwilczynski@kernel.org>, <ojeda@kernel.org>, <alex.gaynor@gmail.com>,
 <boqun.feng@gmail.com>, <bjorn3_gh@protonmail.com>, <lossin@kernel.org>,
 <a.hindborg@kernel.org>, <tmgross@umich.edu>, <markus.probst@posteo.de>,
 <helgaas@kernel.org>, <cjia@nvidia.com>, <smitra@nvidia.com>,
 <ankita@nvidia.com>, <aniketa@nvidia.com>, <kwankhede@nvidia.com>,
 <targupta@nvidia.com>, <acourbot@nvidia.com>, <joelagnelf@nvidia.com>,
 <jhubbard@nvidia.com>, <zhiwang@kernel.org>, <daniel.almeida@collabora.com>
To: "Gary Guo" <gary@garyguo.net>
From: "Danilo Krummrich" <dakr@kernel.org>
References: <20260119202250.870588-1-zhiw@nvidia.com>
 <20260119202250.870588-3-zhiw@nvidia.com> <aW83HV4lVR5MQlDd@google.com>
 <DFTC434Z6XRK.2RTE2DFC16TDA@kernel.org>
 <DFTJI4PTLDWM.1F7X1KN1Q264S@garyguo.net>
In-Reply-To: <DFTJI4PTLDWM.1F7X1KN1Q264S@garyguo.net>

On Tue Jan 20, 2026 at 4:59 PM CET, Gary Guo wrote:
> I think whether there's a runtime bound checking and whether a IO size is
> supported are two orthogonal things, I would rather we have a single seri=
es of
> `IoCapable<T>` to just indiate the latter and still keep the `IoKnownSize=
`.

I like this idea, it seems like a very reasonable compromise to me.