linux-kernel - Re: [PATCH v5 3/8] dma-buf: Always build with DMABUF_MOVE

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Message-ID: <20260127204530.GX13967@unreal>
Date: Tue, 27 Jan 2026 22:45:30 +0200
From: Leon Romanovsky <leon@...nel.org>
To: Christian König <christian.koenig@....com>
Cc: Sumit Semwal <sumit.semwal@...aro.org>,
	Alex Deucher <alexander.deucher@....com>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Gerd Hoffmann <kraxel@...hat.com>,
	Dmitry Osipenko <dmitry.osipenko@...labora.com>,
	Gurchetan Singh <gurchetansingh@...omium.org>,
	Chia-I Wu <olvaffe@...il.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Lucas De Marchi <lucas.demarchi@...el.com>,
	Thomas Hellström <thomas.hellstrom@...ux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@...el.com>,
	Jason Gunthorpe <jgg@...pe.ca>, Kevin Tian <kevin.tian@...el.com>,
	Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
	Robin Murphy <robin.murphy@....com>,
	Felix Kuehling <Felix.Kuehling@....com>,
	Alex Williamson <alex@...zbot.org>,
	Ankit Agrawal <ankita@...dia.com>,
	Vivek Kasireddy <vivek.kasireddy@...el.com>,
	linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	linaro-mm-sig@...ts.linaro.org, linux-kernel@...r.kernel.org,
	amd-gfx@...ts.freedesktop.org, virtualization@...ts.linux.dev,
	intel-xe@...ts.freedesktop.org, linux-rdma@...r.kernel.org,
	iommu@...ts.linux.dev, kvm@...r.kernel.org
Subject: Re: [PATCH v5 3/8] dma-buf: Always build with DMABUF_MOVE_NOTIFY

On Tue, Jan 27, 2026 at 01:42:43PM +0200, Leon Romanovsky wrote:
> On Tue, Jan 27, 2026 at 11:02:03AM +0100, Christian König wrote:
> > On 1/27/26 10:58, Leon Romanovsky wrote:
> > > On Tue, Jan 27, 2026 at 10:26:26AM +0100, Christian König wrote:
> > >> On 1/24/26 20:14, Leon Romanovsky wrote:
> > >>> From: Leon Romanovsky <leonro@...dia.com>
> > >>>
> > >>> DMABUF_MOVE_NOTIFY was introduced in 2018 and has been marked as
> > >>> experimental and disabled by default ever since. Six years later,
> > >>> all new importers implement this callback.
> > >>>
> > >>> It is therefore reasonable to drop CONFIG_DMABUF_MOVE_NOTIFY and
> > >>> always build DMABUF with support for it enabled.
> > >>>
> > >>> Suggested-by: Christian König <christian.koenig@....com>
> > >>> Signed-off-by: Leon Romanovsky <leonro@...dia.com>
> > >>
> > >> Reviewed-by: Christian König <christian.koenig@....com>
> > >>
> > >> As long as nobody starts screaming in the last second or I encounter some other problem I'm going to push the first three patches to drm-misc-next now.
> > > 
> > > How do you see progress of other patches?
> > > Can they be queued for that tree as well?
> > 
> > I was hoping to get through them by the end of the week.
> > 
> > Just wanted to make sure that CI systems start to see the first three patches (who affect everybody), so that we get early feedback should we have missed something.
> 
> Perfect, I based my patches on these two commits:
> 61ceaf236115 (vfio/for-linus) vfio: Prevent from pinned DMABUF importers to attach to VFIO DMABUF
> 24d479d26b25 (tag: v6.19-rc6) Linux 6.19-rc6

The fix was merged https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1f97d9dcf53649c41c33227b345a36902cbb08ad

Thanks

> 
> Thanks
> 
> > 
> > Regards,
> > Christian.
> > 
> > > 
> > > Thanks
> > > 
> > >>
> > >> They are basically just cleanups we should have done a long time ago.
> > >>
> > >> Regards,
> > >> Christian.
> > >>
> > 
>