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Date: Mon, 12 Oct 2026 18:12:31 +0200
Message-Id: <DM2ZQ8WLXOLQ.Z4U2APODVLL1@kernel.org>
Subject: Re: [PATCH 2/7] rust: drm: gem: gate open/close callbacks with
 RegistrationGuard
Cc: <sashiko-reviews@lists.linux.dev>, "Alexandre Courbot"
 <acourbot@nvidia.com>, <ojeda@kernel.org>,
 <dri-devel@lists.freedesktop.org>, "rust-for-linux"
 <rust-for-linux@vger.kernel.org>
To: "Daniel Almeida" <daniel.almeida@collabora.com>
From: "Danilo Krummrich" <dakr@kernel.org>
References: <20260814230923.1292966-1-dakr@kernel.org>
 <20260814230923.1292966-3-dakr@kernel.org>
 <20260814232106.01AA71F000E9@smtp.kernel.org>
 <E989BBD7-DF97-4384-AFC1-3D7448A1C747@collabora.com>
 <DM22LS0S86HB.2G9NWE78JHV0@kernel.org>
 <0CA5ABE5-C198-45D5-B393-50AA219D6F14@collabora.com>
In-Reply-To: <0CA5ABE5-C198-45D5-B393-50AA219D6F14@collabora.com>

On Mon Oct 12, 2026 at 6:06 PM CEST, Daniel Almeida wrote:
> So you=E2=80=99re saying that close() can be removed entirely? Or did I m=
isunderstand?

Not entirely, it can still be useful when the driver remains bound and the =
DRM
device registered as an optimization to release resources early.  It's just=
 not
useful on / after DRM device unregistration / driver unbind as it implies t=
hat
those resources are released anyway.