linux-kernel - Re: [PATCH v4 6/6] rust: use strict provenance APIs

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Message-ID: <CAJ-ks9kH3SE91XSadBx1qFaG5dem93o_ctR0t2FwW-0ZfkRNwQ@mail.gmail.com>
Date: Mon, 17 Mar 2025 10:13:20 -0400
From: Tamir Duberstein <tamird@...il.com>
To: Benno Lossin <benno.lossin@...ton.me>
Cc: 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>, Boqun Feng <boqun.feng@...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 v4 6/6] rust: use strict provenance APIs

On Mon, Mar 17, 2025 at 6:53 AM Tamir Duberstein <tamird@...il.com> wrote:
>
> On Mon, Mar 17, 2025 at 5:34 AM Benno Lossin <benno.lossin@...ton.me> wrote:
> >
> > > +    pub fn expose_provenance<T>(addr: *const T) -> usize {
> > > +        addr.expose_provenance()
> >
> > Instead of having these stubs here, you can probably just do
> >
> >     pub use core::ptr::expose_provenance;
>
> This doesn't work for the methods on primitives, but it works for the
> free functions. Done.

Have to revert this, writing `pub use ...` directly causes the MSRV
clippy lint to fire at the caller.