linux-kernel - Re: [PATCH v4 1/2] rust: add `Alignment` type

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <aKgjQq9tfRuCq-cr@google.com>
Date: Fri, 22 Aug 2025 07:58:58 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: Alexandre Courbot <acourbot@...dia.com>
Cc: Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
	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>, Trevor Gross <tmgross@...ch.edu>, 
	Danilo Krummrich <dakr@...nel.org>, linux-kernel@...r.kernel.org, 
	rust-for-linux@...r.kernel.org, nouveau@...ts.freedesktop.org
Subject: Re: [PATCH v4 1/2] rust: add `Alignment` type

On Thu, Aug 21, 2025 at 09:42:17PM +0900, Alexandre Courbot wrote:
> Alignment operations are very common in the kernel. Since they are
> always performed using a power-of-two value, enforcing this invariant
> through a dedicated type leads to fewer bugs and can improve the
> generated code.
> 
> Introduce the `Alignment` type, inspired by the nightly Rust type of the
> same name and providing the same interface, and a new `Alignable` trait
> allowing unsigned integers to be aligned up or down.
> 
> Signed-off-by: Alexandre Courbot <acourbot@...dia.com>

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