linux-kernel - Re: [PATCH 0/3] Remove the usage of Rust native atomics in debugfs

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <aPiVajDTiPsxZweo@google.com>
Date: Wed, 22 Oct 2025 08:27:22 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: Boqun Feng <boqun.feng@...il.com>, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	"Rafael J. Wysocki" <rafael@...nel.org>, Danilo Krummrich <dakr@...nel.org>, Miguel Ojeda <ojeda@...nel.org>, 
	Alex Gaynor <alex.gaynor@...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>, Will Deacon <will@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, Matthew Maurer <mmaurer@...gle.com>
Subject: Re: [PATCH 0/3] Remove the usage of Rust native atomics in debugfs

On Wed, Oct 22, 2025 at 10:07:17AM +0200, Peter Zijlstra wrote:
> On Tue, Oct 21, 2025 at 11:53:21PM -0400, Boqun Feng wrote:
> > Rust native atomics are not supposed to be used in kernel due to the
> > mismatch of memory model, since we now have the LKMM atomics in Rust,
> > remove the usage of Rust native atomics in debugfs.
> 
> Doesn't rust have a language feature that allows you to blacklist them;
> ensuring they are not used?

I believe clippy lets you do that.

Alice