Re: [PATCH v3 0/8] dma-buf: heaps: Turn heaps into modules

[Maxime Ripard]

Hi Marek,

On Fri, Mar 20, 2026 at 01:24:18PM +0100, Marek Szyprowski wrote:
> On 03.03.2026 11:13, Maxime Ripard wrote:
> > The recent introduction of heaps in the optee driver [1] made possible
> > the creation of heaps as modules.
> >
> > It's generally a good idea if possible, including for the already
> > existing system and CMA heaps.
> >
> > The system one is pretty trivial, the CMA one is a bit more involved,
> > especially since we have a call from kernel/dma/contiguous.c to the CMA
> > heap code. This was solved by turning the logic around and making the
> > CMA heap call into the contiguous DMA code.
> >
> > Let me know what you think,
> > Maxime
> >
> > 1: https://lore.kernel.org/dri-devel/20250911135007.1275833-4-jens.wiklander@xxxxxxxxxx/
> >
> > Signed-off-by: Maxime Ripard <mripard@xxxxxxxxxx>
> 
> I'm okay with the kernel/dma/contiguous.c changes. I only wonder how to 
> properly merge them. There are other pending changes to 
> kernel/dma/contiguous.c file [1] and if they finally get reviewed, I 
> would like to merge both via dma-mapping-for-next tree. Then I can 
> provide a stable branch for merging the remaining dma-buf pathes. Is it 
> okay for You?

That sounds reasonable to media
Thanks!
Maxime

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