linux-kernel - Re: [PATCH v3 02/11] rust: derive `Zeroable` for all structs & unions generated by bindgen where possible

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Message-ID: <CAH5fLggOfOFj+v5vhmF0m9VhBUeegAT7Y8NR3++04LKsBrJPEA@mail.gmail.com>
Date: Wed, 27 Aug 2025 19:30:59 +0200
From: Alice Ryhl <aliceryhl@...gle.com>
To: Benno Lossin <lossin@...nel.org>
Cc: 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>, Trevor Gross <tmgross@...ch.edu>, 
	Danilo Krummrich <dakr@...nel.org>, Tamir Duberstein <tamird@...il.com>, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 02/11] rust: derive `Zeroable` for all structs & unions
 generated by bindgen where possible

On Thu, Aug 14, 2025 at 11:31 AM Benno Lossin <lossin@...nel.org> wrote:
>
> Using the `--with-derive-custom-{struct,union}` option of bindgen, add
> `#[derive(MaybeZeroable)]` to every struct & union. This makes those
> types implement `Zeroable` if all their fields implement it.
>
> Sadly bindgen doesn't add custom derives to the `__BindgenBitfieldUnit`
> struct. So manually implement `Zeroable` for that.
>
> Signed-off-by: Benno Lossin <lossin@...nel.org>

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>