dma-iommu: remove __iommu_dma_mmap

	return NULL;

}

/**

 * __iommu_dma_mmap - Map a buffer into provided user VMA

 * @pages: Array representing buffer from __iommu_dma_alloc()

 * @size: Size of buffer in bytes

 * @vma: VMA describing requested userspace mapping

 *

 * Maps the pages of the buffer in @pages into @vma. The caller is responsible

 * for verifying the correct size and protection of @vma beforehand.

 */

static int __iommu_dma_mmap(struct page **pages, size_t size,

		struct vm_area_struct *vma)

{

	return vm_map_pages(vma, pages, PAGE_ALIGN(size) >> PAGE_SHIFT);

}

static void iommu_dma_sync_single_for_cpu(struct device *dev,

		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)

{

		struct page **pages = dma_common_find_pages(cpu_addr);

		if (pages)

			return __iommu_dma_mmap(pages, size, vma);

			return vm_map_pages(vma, pages, nr_pages);

		pfn = vmalloc_to_pfn(cpu_addr);

	} else {

		pfn = page_to_pfn(virt_to_page(cpu_addr));