Re: [PATCH 0/6] rust: drm: Higher-Ranked Lifetime private data

[lyude@redhat.com]

On Tue, 2026-05-19 at 20:59 +0200, Boris Brezillon wrote:
> On Thu, 14 May 2026 21:07:11 +0200
> "Danilo Krummrich" <dakr@kernel.org> wrote:
> 
> > On Thu May 14, 2026 at 8:59 PM CEST, Deborah Brouwer wrote:
> > > let unreg_dev =
> > > drm::UnregisteredDevice::<TyrDrmDriver>::new(pdev, data)?;  
> > 
> > You shouldn't need this anymore as the drm::Registration itself has
> > private data
> > now that is bound to the lifetime of the underlying bus device,
> > which should be
> > the correct lifetime for juggling the GPU page tables.
> 
> The problem we have is that, to initialize some of the sub-components
> of the driver, we need to be able to allocate GEM objects before the
> DRM
> device is exposed (registered), and because the data we want to
> attach
> to the final registration contains these sub-components, we need to
> defer the data assignment to the registration step (which was allowed
> by [1], but apparently this was dropped from the latest version of
> the series for some reason).
> 
> [1]
> https://lore.kernel.org/dri-devel/20260320233645.950190-4-lyude@redha
> t.com/

I dropped it because when talking with Danilo I had the impression that
we weren't going to need this (and I thought we explicitly had
mentioned it when talking with eachother). But I'm always happy to add
it back