linux-kernel - Re: [PATCH RFC 04/18] rust: drm: gem: Add GEM object abstraction

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Date:   Wed, 5 Apr 2023 13:22:57 +0200
From:   Daniel Vetter <daniel@...ll.ch>
To:     Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc:     Asahi Lina <lina@...hilina.net>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Miguel Ojeda <ojeda@...nel.org>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Wedson Almeida Filho <wedsonaf@...il.com>,
        Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
        Björn Roy Baron <bjorn3_gh@...tonmail.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>,
        Luben Tuikov <luben.tuikov@....com>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        Karol Herbst <kherbst@...hat.com>,
        Ella Stanforth <ella@...unix.org>,
        Faith Ekstrand <faith.ekstrand@...labora.com>,
        Mary <mary@...y.zone>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, rust-for-linux@...r.kernel.org,
        linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org,
        linux-sgx@...r.kernel.org, asahi@...ts.linux.dev,
        Daniel Vetter <daniel@...ll.ch>
Subject: Re: [PATCH RFC 04/18] rust: drm: gem: Add GEM object abstraction

On Wed, Apr 05, 2023 at 01:19:47PM +0200, Miguel Ojeda wrote:
> On Wed, Apr 5, 2023 at 1:08 PM Daniel Vetter <daniel@...ll.ch> wrote:
> >
> > Uh all the rust helper wrappers for all the kernel in a single file does
> > not sound good. Can we not split these up into each subsystem, and then
> > maybe instead of sprinkling #ifdef all over a .c file Make the compilation
> > of that file conditional on rust support (plus whatever other Kconfig gate
> > the other c files has already)?
> 
> Indeed, the plan is splitting the `kernel` crate and giving each
> subsystem its own crate, bindings, helpers, etc.

Ok if this is just interim I think it's fine. Would still be good to have
the MAINTAINERS entry though even just to cover the interim state. Least
because I'm assuming that when things are split up you'd still want to
keep the rust list on cc for the rust parts, even when they move into
subsystems?
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch