> + /* > + * dma_sync_sg_*() flush the physical pages, so point > + * sg->dma_address to the physical ones for the right behavior. > + */ > + for_each_sg(msm_obj->sgt->sgl, s, msm_obj->sgt->nents, i) > + sg_dma_address(s) = sg_phys(s); > + I'm sorry, but this is completely bogus and not acceptable. The only place that is allowed to initialize sg_dma_address is dma_map_sg. If the default dma ops don't work for your setup we have major a problem and need to fix the dma api / iommu integration instead of hacking around it.
