Re: [PATCH] rust: pin-init: add code blocks to `[try_][pin_]init!` macros

["Danilo Krummrich" <dakr@kernel.org>]

On Sun Sep 7, 2025 at 12:57 PM CEST, Alice Ryhl wrote:
> 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@kernel.org>
>
> Nice! Would it be possible to include a user so I can see it work in
> practice? E.g., for the irq feature?

Devres needs this too, but the corresponding devres stuff was a fix and is in
the current -rc only, so that's not a candidate.

The IRQ stuff is in driver-core-next going to Linus for v6.18, hence, using it
there, this patch would have to go through the driver-core tree as well.

For me it is fine either way.