linux-kernel - Re: [PATCH 1/8] rust: kernel: Add Platform device and driver abstractions

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Message-ID: <ZuVhZV2KW2Gv340V@robin>
Date: Sat, 14 Sep 2024 12:11:49 +0200
From: Janne Grunau <janne@...nau.net>
To: Danilo Krummrich <dakr@...nel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ayush Singh <ayush@...gleboard.org>, fabien.parent@...aro.org,
	d-gole@...com, lorforlinux@...gleboard.org,	jkridner@...gleboard.org,
 robertcnelson@...gleboard.org,	Andrew Davis <afd@...com>,
 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>,
	Rob Herring <robh@...nel.org>,	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Derek Kiernan <derek.kiernan@....com>,
	Dragan Cvetic <dragan.cvetic@....com>,	Arnd Bergmann <arnd@...db.de>,
 Nishanth Menon <nm@...com>,	Vignesh Raghavendra <vigneshr@...com>,
	Tero Kristo <kristo@...nel.org>, linux-kernel@...r.kernel.org,
	rust-for-linux@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, asahi@...ts.linux.dev
Subject: Re: [PATCH 1/8] rust: kernel: Add Platform device and driver
 abstractions

On Wed, Sep 11, 2024 at 07:35:35PM +0200, Danilo Krummrich wrote:
> On Wed, Sep 11, 2024 at 04:56:14PM +0200, Greg Kroah-Hartman wrote:
> > On Wed, Sep 11, 2024 at 07:57:18PM +0530, Ayush Singh wrote:
> > > +/// An identifier for Platform devices.
> > > +///
> > > +/// Represents the kernel's [`struct of_device_id`]. This is used to find an appropriate
> > > +/// Platform driver.
> > > +///
> > > +/// [`struct of_device_id`]: srctree/include/linux/mod_devicetable.h
> > > +pub struct DeviceId(&'static CStr);
> > > +
> > > +impl DeviceId {
> > 
> > <snip>
> > 
> > I appreciate posting this, but this really should go on top of the
> > device driver work Danilo Krummrich has been doing.
> 
> If everyone agrees, I'd offer to just provide platform device / driver
> abstractions with my next patch series. This way you don't need to worry
> about aligning things with the rest of the abstractions yourself and throughout
> potential further versions of the series.

Covering platform device/driver abstractions in the same series would
be appreciated from asahi side. It hopefully results in earlier merge
since it avoids a dependency on the device driver abstractions.
Feel free to reach out to me for an earlier preview / rabsing of the
asahi driver.
https://github.com/AsahiLinux/linux/tree/bits/210-gpu has all relevant
rust changes from 6.11-rc but I plan to rebase onto 6.11 in the next
days and possibly import changes from 6.12-rc* / rust-next.

Thanks
Janne