linux-kernel - Re: [PATCH v2 2/6] rust: types: avoid `as` casts

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Message-ID: <CANiq72=RpF8xLVqBzmKbec+fDcDFss_aiSB1nGzjvj=ApExcUQ@mail.gmail.com>
Date: Fri, 8 Nov 2024 14:14:44 +0100
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Alice Ryhl <aliceryhl@...gle.com>
Cc: Tamir Duberstein <tamird@...il.com>, 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 <benno.lossin@...ton.me>, Andreas Hindborg <a.hindborg@...nel.org>, 
	Trevor Gross <tmgross@...ch.edu>, Danilo Krummrich <dakr@...nel.org>, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/6] rust: types: avoid `as` casts

On Fri, Nov 8, 2024 at 12:35 PM Alice Ryhl <aliceryhl@...gle.com> wrote:
>
> The compiler auto-converts from *mut to *const, so only cast_mut() is
> necessary. I think this will still compile if you get rid of all of
> the cast_const() calls.

Yeah, if there was a mode/lint that forced us to avoid the coercion,
then I guess this could eventually make sense as a more explicit (and
symmetric) style around raw pointers  -- I opened:

    https://github.com/rust-lang/rust-clippy/issues/13667

to see what others think.

Cheers,
Miguel