linux-kernel - Re: [PATCH] rust: pin-init: add code blocks to `[try_][pin

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Message-ID: <aL1lHyhzWX0xGrmo@google.com>
Date: Sun, 7 Sep 2025 10:57:35 +0000
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>, Fiona Behrens <me@...enk.dev>, 
	Christian Schrefl <chrisi.schrefl@...il.com>, Alban Kurti <kurti@...icto.ai>, 
	rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rust: pin-init: add code blocks to `[try_][pin_]init!` macros

On Fri, Sep 05, 2025 at 04:05:31PM +0200, Benno Lossin wrote:
> Allow writing `_: { /* any number of statements */ }` in initializers to
> run arbitrary code during initialization.
> 
>     try_init!(MyStruct {
>         _: {
>             if check_something() {
>                 return Err(MyError);
>             }
>         },
>         foo: Foo::new(val),
>         _: {
>             println!("successfully initialized `MyStruct`");
>         },
>     })
> 
> Link: https://github.com/Rust-for-Linux/pin-init/pull/84/commits/2880a9b898336e2d54f80715f00ce00f21f74d2f
> Signed-off-by: Benno Lossin <lossin@...nel.org>

Nice! Would it be possible to include a user so I can see it work in
practice? E.g., for the irq feature?

Alice