linux-kernel - Re: [PATCH v3 1/3] rust: clk: use the type-state pattern

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Message-ID: <CANiq72kcRQShDgMJKZ+ekUEdP1T6Jr=4PDiMJCqnQjgCQEK_eA@mail.gmail.com>
Date: Mon, 19 Jan 2026 16:22:40 +0100
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Gary Guo <gary@...yguo.net>
Cc: Daniel Almeida <daniel.almeida@...labora.com>, "Rafael J. Wysocki" <rafael@...nel.org>, 
	Viresh Kumar <viresh.kumar@...aro.org>, Danilo Krummrich <dakr@...nel.org>, 
	Alice Ryhl <aliceryhl@...gle.com>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
	Drew Fustini <fustini@...nel.org>, Guo Ren <guoren@...nel.org>, Fu Wei <wefu@...hat.com>, 
	Uwe Kleine-König <ukleinek@...nel.org>, 
	Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>, 
	Miguel Ojeda <ojeda@...nel.org>, Boqun Feng <boqun.feng@...il.com>, 
	Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>, 
	Trevor Gross <tmgross@...ch.edu>, linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	dri-devel@...ts.freedesktop.org, linux-riscv@...ts.infradead.org, 
	linux-pwm@...r.kernel.org, linux-clk@...r.kernel.org, 
	rust-for-linux@...r.kernel.org
Subject: Re: [PATCH v3 1/3] rust: clk: use the type-state pattern

On Mon, Jan 19, 2026 at 3:20 PM Gary Guo <gary@...yguo.net> wrote:
>
> I guess it's time for me to work on a `#[sealed]` macro...

...and perhaps pinging upstream for the language feature... :) I added
https://github.com/rust-lang/rust/issues/105077 to our usual list of
wishes at https://github.com/Rust-for-Linux/linux/issues/354.

Do you think using the linked crate in the commit message would make
sense? It seems to be a couple pages of code, using `syn` 2.0, which
should be fine now.

Another option is a "good first issue" of medium difficulty if you wish.

> I wonder if it makes sense to add a general `ErrorWith` type for errors that
> carries error code + data.

Sounds reasonable...

Cheers,
Miguel