linux-kernel - Re: [PATCH 2/2] rust/faux: Add missing parent argument to Registration::new()

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Message-ID: <7c7f9b38e321353507a75520c35efd9b20d69acf.camel@redhat.com>
Date: Wed, 26 Feb 2025 11:51:26 -0500
From: Lyude Paul <lyude@...hat.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: rust-for-linux@...r.kernel.org, Maíra Canal	
 <mairacanal@...eup.net>, "Rafael J. Wysocki" <rafael@...nel.org>, Danilo
 Krummrich <dakr@...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>, Benno Lossin <benno.lossin@...ton.me>, Andreas
 Hindborg <a.hindborg@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>, Trevor
 Gross <tmgross@...ch.edu>,  open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] rust/faux: Add missing parent argument to
 Registration::new()

On Wed, 2025-02-26 at 11:01 +0100, Greg Kroah-Hartman wrote:
> 
> 
> I guess you can add parent can be NULL to the SAFETY line?
> 
> Sorry, I thought I would just leave it this way without a parent pointer
> until you actually had a user that needed it.  And then we could add the
> new parameter and fix up all callers.  No need to add support for it yet
> without that, changing apis is easy!  :)
> 
> Do you have a real user for this any time soon?
> 

Not particularly! My thought process was mostly just this seems like a simple
enough addition that it would probably be easy to add it now when we don't
have any users upstream yet rather than building up faux device users in rust
and potentially having to refactor later to add such an argument.

I don't think the refactoring would be that much work either, but it seemed
harmless to just get it over with now.

> thanks,
> 
> greg k-h
> 

-- 
Cheers,
 Lyude Paul (she/her)
 Software Engineer at Red Hat

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