Messages in this thread Patch in this message | | | Date | Thu, 15 Nov 2018 21:19:50 +0530 | From | Souptick Joarder <> | Subject | [PATCH 6/9] iommu/dma-iommu.c: Convert to use vm_insert_range |
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Convert to use vm_insert_range() to map range of kernel memory to user vma.
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Reviewed-by: Matthew Wilcox <willy@infradead.org> --- drivers/iommu/dma-iommu.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-)
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index d1b0475..69c66b1 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -622,17 +622,9 @@ struct page **iommu_dma_alloc(struct device *dev, size_t size, gfp_t gfp, int iommu_dma_mmap(struct page **pages, size_t size, struct vm_area_struct *vma) { - unsigned long uaddr = vma->vm_start; - unsigned int i, count = PAGE_ALIGN(size) >> PAGE_SHIFT; - int ret = -ENXIO; + unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT; - for (i = vma->vm_pgoff; i < count && uaddr < vma->vm_end; i++) { - ret = vm_insert_page(vma, uaddr, pages[i]); - if (ret) - break; - uaddr += PAGE_SIZE; - } - return ret; + return vm_insert_range(vma, vma->vm_start, pages, count); } static dma_addr_t __iommu_dma_map(struct device *dev, phys_addr_t phys, -- 1.9.1
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