linux-kernel - Re: [PATCH v5 6/6] rust: use strict provenance APIs

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Message-ID: <D8KIF51E9UVO.1AUMFW98R1SW1@proton.me>
Date: Wed, 19 Mar 2025 20:03:11 +0000
From: Benno Lossin <benno.lossin@...ton.me>
To: Boqun Feng <boqun.feng@...il.com>
Cc: Tamir Duberstein <tamird@...il.com>, Masahiro Yamada <masahiroy@...nel.org>, Nathan Chancellor <nathan@...nel.org>, Nicolas Schier <nicolas@...sle.eu>, Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, Gary Guo <gary@...yguo.net>, Björn Roy Baron <bjorn3_gh@...tonmail.com>, Andreas Hindborg <a.hindborg@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>, Danilo Krummrich <dakr@...nel.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>, Brendan Higgins <brendan.higgins@...ux.dev>, David Gow <davidgow@...gle.com>, Rae Moar <rmoar@...gle.com>, Bjorn Helgaas <bhelgaas@...gle.com>, Luis Chamberlain <mcgrof@...nel.org>, Russ Weight <russ.weight@...ux.dev>, Rob Herring <robh@...nel.org>, Saravana Kannan <saravanak@...gle.com>, linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org, linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
	linux-pci@...r.kernel.org, linux-block@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v5 6/6] rust: use strict provenance APIs

On Wed Mar 19, 2025 at 4:25 PM CET, Boqun Feng wrote:
> On Tue, Mar 18, 2025 at 09:23:42AM +0000, Benno Lossin wrote:
> [..]
>> > +#![allow(clippy::incompatible_msrv)]
>> >  
>> > -#[cfg(not(CONFIG_RUSTC_HAS_STABLE_STRICT_PROVENANCE))]
>> > +#[cfg(not(CONFIG_RUSTC_HAS_EXPOSED_PROVENANCE))]
>> >  mod strict_provenance {
>> 
>> Since there is only a single trait and impl in here, I think we don't
>> need a module.
>
> We still need to provide stubs for with_exposed_provenance() and its
> friends for rustc == 1.78, so there are a few more functions in this
> module.

Ah I see, that's okay then.

---
Cheers,
Benno