Re: [PATCH] drm/gpuvm: Do not prepare NULL objects

["Danilo Krummrich" <dakr@kernel.org>]

On Thu Apr 16, 2026 at 10:23 PM CEST, Jonathan Cavitt wrote:
> Question for the future:
> Is Lankhorst, Maarten a proper maintainer for this component? 

Maarten is one of the drm-misc tree maintainers.

DRM is a bit special in this regard compared to other kernel subsystems, as DRM
also allows non-maintainers to push to development trees. Yet, those development
trees still need to be run by someone and those people are the tree maintainers.

Additionally, there are people maintaining the individual components, drivers,
etc. and those are usually the people with the strongest domain knowledge.

Patches should be sent to both the tree maintainers and the component
maintainers.

> If not, is there a list I can reference to determine who the proper
> maintainers I should be contacting are?

Absolutely, everything is documented in the MAINTAINERS file in the kernel tree.

The best way to figure out who to send patches to is to use
./scripts/get_maintainer.pl. The script should provide you with the full list of
all relevant maintainers and reviewers for your patch.

Additionally, it also outputs people who have been involved in the corresponding
component and may be worth Cc'ing as well.

If you run it for your patch you should get the output below.

I hope this helps!

- Danilo

--

	$ ./scripts/get_maintainer.pl ./20260130_jonathan_cavitt_drm_gpuvm_do_not_prepare_null_objects.mbx
	Danilo Krummrich <dakr@kernel.org> (maintainer:DRM GPUVM,blamed_fixes:1/1=100%)
	Matthew Brost <matthew.brost@intel.com> (reviewer:DRM GPUVM)
	"Thomas Hellström" <thomas.hellstrom@linux.intel.com> (reviewer:DRM GPUVM,blamed_fixes:1/1=100%)
	Alice Ryhl <aliceryhl@google.com> (reviewer:DRM GPUVM)
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com> (maintainer:DRM DRIVERS AND MISC GPU PATCHES)
	Maxime Ripard <mripard@kernel.org> (maintainer:DRM DRIVERS AND MISC GPU PATCHES)
	Thomas Zimmermann <tzimmermann@suse.de> (maintainer:DRM DRIVERS AND MISC GPU PATCHES)
	David Airlie <airlied@gmail.com> (maintainer:DRM DRIVERS)
	Simona Vetter <simona@ffwll.ch> (maintainer:DRM DRIVERS)
	"Christian König" <christian.koenig@amd.com> (blamed_fixes:1/1=100%)
	Boris Brezillon <boris.brezillon@collabora.com> (blamed_fixes:1/1=100%)
	dri-devel@lists.freedesktop.org (open list:DRM GPUVM)
	linux-kernel@vger.kernel.org (open list)
	DRM GPUVM status: Supported