linux-kernel - Re: [PATCH 7/9] rust: pin-init: use `kernel::{fmt,prelude::fmt!}`

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Message-ID: <CAJ-ks9nNc_pThtb+gHUcjEnvR6V0RAEG0tkv+_DHYYjXs1N7=A@mail.gmail.com>
Date: Wed, 9 Jul 2025 17:01:28 -0400
From: Tamir Duberstein <tamird@...il.com>
To: Benno Lossin <lossin@...nel.org>
Cc: Danilo Krummrich <dakr@...nel.org>, David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
	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>, Alice Ryhl <aliceryhl@...gle.com>, 
	Trevor Gross <tmgross@...ch.edu>, Jens Axboe <axboe@...nel.dk>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>, 
	Brendan Higgins <brendan.higgins@...ux.dev>, David Gow <davidgow@...gle.com>, 
	Rae Moar <rmoar@...gle.com>, nouveau@...ts.freedesktop.org, 
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
	rust-for-linux@...r.kernel.org, linux-block@...r.kernel.org, 
	linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com
Subject: Re: [PATCH 7/9] rust: pin-init: use `kernel::{fmt,prelude::fmt!}`

On Wed, Jul 9, 2025 at 4:18 PM Benno Lossin <lossin@...nel.org> wrote:
>
> On Wed Jul 9, 2025 at 10:00 PM CEST, Tamir Duberstein wrote:
> > Reduce coupling to implementation details of the formatting machinery by
> > avoiding direct use for `core`'s formatting traits and macros.
> >
> > Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>
> > Signed-off-by: Tamir Duberstein <tamird@...il.com>
> > ---
> >  rust/kernel/init.rs | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
>
> I usually prefix patches to init.rs with `rust: init`. I'll fix it up
> when picking the patch or Miguel can do it if he takes it:
>
> Acked-by: Benno Lossin <lossin@...nel.org>

Actually, squinting at this patch more closely now, I think this isn't
what you had in mind. The comment says "Dummy error that can be
constructed outside the `kernel` crate." but the error now comes from
the kernel crate :(

Perhaps you could suggest a different modification that would both
meet the original intent and allow references to core::fmt to
disappear?