linux-kernel - Re: [PATCH 2/2] rust: dma: use NonNull<T> instead of *mut T

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Message-ID: <aQm7vReThpKDOO67@google.com>
Date: Tue, 4 Nov 2025 08:39:25 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: Danilo Krummrich <dakr@...nel.org>
Cc: abdiel.janulgue@...il.com, daniel.almeida@...labora.com, 
	robin.murphy@....com, a.hindborg@...nel.org, ojeda@...nel.org, 
	alex.gaynor@...il.com, boqun.feng@...il.com, gary@...yguo.net, 
	bjorn3_gh@...tonmail.com, lossin@...nel.org, tmgross@...ch.edu, 
	linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org
Subject: Re: [PATCH 2/2] rust: dma: use NonNull<T> instead of *mut T

On Mon, Nov 03, 2025 at 08:06:50PM +0100, Danilo Krummrich wrote:
> In struct CoherentAllocation, use NonNull<T> instead of a raw *mut T for
> the CPU address; the CPU address of a valid CoherentAllocation won't
> ever be NULL.
> 
> Signed-off-by: Danilo Krummrich <dakr@...nel.org>

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>