netdev - Re: [PATCH v8 6/6] rust: enable `clippy::ref_as

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Message-ID: <D96B00U9SS2Q.1YHLNBOIEWSNE@proton.me>
Date: Mon, 14 Apr 2025 10:52:54 +0000
From: Benno Lossin <benno.lossin@...ton.me>
To: Tamir Duberstein <tamird@...il.com>, Masahiro Yamada <masahiroy@...nel.org>, Nathan Chancellor <nathan@...nel.org>, 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>, Abdiel Janulgue <abdiel.janulgue@...il.com>, Daniel Almeida <daniel.almeida@...labora.com>, Robin Murphy <robin.murphy@....com>, Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, FUJITA Tomonori <fujita.tomonori@...il.com>, Nicolas Schier <nicolas.schier@...ux.dev>, Frederic Weisbecker <frederic@...nel.org>, Lyude Paul <lyude@...hat.com>, Thomas Gleixner <tglx@...utronix.de>, Anna-Maria Behnsen <anna-maria@...utronix.de>
Cc: 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, dri-devel@...ts.freedesktop.org, netdev@...r.kernel.org
Subject: Re: [PATCH v8 6/6] rust: enable `clippy::ref_as_ptr` lint

On Wed Apr 9, 2025 at 4:47 PM CEST, Tamir Duberstein wrote:
> In Rust 1.78.0, Clippy introduced the `ref_as_ptr` lint [1]:
>
>> Using `as` casts may result in silently changing mutability or type.
>
> While this doesn't eliminate unchecked `as` conversions, it makes such
> conversions easier to scrutinize.  It also has the slight benefit of
> removing a degree of freedom on which to bikeshed. Thus apply the
> changes and enable the lint -- no functional change intended.
>
> Link: https://rust-lang.github.io/rust-clippy/master/index.html#ref_as_ptr [1]
> Suggested-by: Benno Lossin <benno.lossin@...ton.me>
> Link: https://lore.kernel.org/all/D8PGG7NTWB6U.3SS3A5LN4XWMN@proton.me/
> Signed-off-by: Tamir Duberstein <tamird@...il.com>

Reviewed-by: Benno Lossin <benno.lossin@...ton.me>

---
Cheers,
Benno

> ---
>  Makefile                 |  1 +
>  rust/bindings/lib.rs     |  1 +
>  rust/kernel/device_id.rs |  3 ++-
>  rust/kernel/fs/file.rs   |  3 ++-
>  rust/kernel/str.rs       |  6 ++++--
>  rust/kernel/uaccess.rs   | 10 ++++------
>  rust/uapi/lib.rs         |  1 +
>  7 files changed, 15 insertions(+), 10 deletions(-)