[PATCH 16/23] iommu/arm-smmu: Prepare for multiple DMA domain types

[Joerg Roedel]

On Mon, Jul 26, 2021 at 02:09:00PM +0100, Robin Murphy wrote:
> Ha, I had exactly that at one point, except I think in the order of
> iommu_is_dma_domain() :)

That name is fine too :)

> The end result didn't seem to give enough extra clarity to justify the
> header churn for me, but I'm happy to be wrong about that if you prefer.

Developers look more into the code than into headers, so I think the
header churn is worth it to improve code readability. But we can do that
on-top of these changes in an extra patch-set which also introduces
helpers for other domain types (if it is worth it).

Regards,

	Jörg