s/dma/dma-mapping/ in the subject.
> function call per API call used in datapath as well as a lot of boilerplate
Please trim commit messages to 73 characters so that they still look good
in git show output.
> +bool dma_iova_try_alloc(struct device *dev, struct dma_iova_state *state,
> + phys_addr_t phys, size_t size)
> +{
> + memset(state, 0, sizeof(*state));
> + if (!use_dma_iommu(dev))
> + return false;
> + if (static_branch_unlikely(&iommu_deferred_attach_enabled) &&
> + iommu_deferred_attach(dev, iommu_get_domain_for_dev(dev)))
> + return false;
> + return iommu_dma_iova_alloc(dev, state, phys, size);
> +}
Now that dma_iova_try_alloc is the only caller of iommu_dma_iova_alloc,
maybe merge the two?
Otherwise looks good:
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
