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Date: Sun, 03 May 2026 20:45:50 +0200
Message-Id: <DI99JDNG0S39.20MM1O9MFDGQL@kernel.org>
Subject: Re: [PATCH] rust: io: use newtype for PhysAddr
Cc: <x@2005.tr>, "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>, "Rafael
 J . Wysocki" <rafael@kernel.org>, "Miguel Ojeda" <ojeda@kernel.org>,
 "Daniel Almeida" <daniel.almeida@collabora.com>, "Joerg Roedel"
 <joro@8bytes.org>, "Will Deacon" <will@kernel.org>, "Boqun Feng"
 <boqun@kernel.org>, "Gary Guo" <gary@garyguo.net>,
 =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= <bjorn3_gh@protonmail.com>, "Benno Lossin"
 <lossin@kernel.org>, "Andreas Hindborg" <a.hindborg@kernel.org>, "Alice
 Ryhl" <aliceryhl@google.com>, "Trevor Gross" <tmgross@umich.edu>, "Robin
 Murphy" <robin.murphy@arm.com>, <driver-core@lists.linux.dev>,
 <rust-for-linux@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
 <iommu@lists.linux.dev>
To: =?utf-8?q?Onur_=C3=96zkan?= <work@onurozkan.dev>
From: "Danilo Krummrich" <dakr@kernel.org>
References: <20260503103050.200526-1-x@2005.tr>
 <20260503182827.21492-1-work@onurozkan.dev>
In-Reply-To: <20260503182827.21492-1-work@onurozkan.dev>

On Sun May 3, 2026 at 8:28 PM CEST, Onur =C3=96zkan wrote:
> Copy and Clone seem never used, please drop them (also see [1]).

This is a transparent wrapper of a primitive, so passing by value is a very
natural and idiomatic thing to do, so we should keep them.

What you are referring to is more meant for larger types where a copy might
actually hurt performance.