31 May
2018
31 May
'18
4:12 p.m.
+#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)
- if (dev->archdata.mapping) {
struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev);arm_iommu_detach_device(dev);arm_iommu_release_mapping(mapping);- }
+#endif
Having this hidden in a helper would be nicer, but anything that doesn't directly expose the dma_map_ops to a driver is fine with me.
So from the dma-mapping POV:
Acked-by: Christoph Hellwig hch@lst.de