On Wed, 2015-04-01 at 15:05 +0100, Will Deacon wrote: > That just leaves the case where the caller tries to map something > smaller than a page. Do we want to return the amount mapped in > iommu_map?
Perhaps we should just expose the *minimum* page size? Although for the IOMMU API I thought that was always assumed to be the same as PAGE_SIZE, and for the DMA API it doesn't matter much because you're *given* the IOVA, and you just know that it's mapped *enough*. -- dwmw2
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