From b4f4a2755665bf847231050b569f587ce0945482 Mon Sep 17 00:00:00 2001 From: Thomas Meyer Date: Thu, 21 Sep 2017 00:29:36 +0200 Subject: [PATCH] arm64: dma-mapping: Cocci spatch "vma_pages" Use vma_pages function on vma object instead of explicit computation. Found by coccinelle spatch "api/vma_pages.cocci" Reviewed-by: Robin Murphy Signed-off-by: Thomas Meyer Signed-off-by: Will Deacon --- arch/arm64/mm/dma-mapping.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index 614af88..5f62090 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -303,8 +303,7 @@ static int __swiotlb_mmap_pfn(struct vm_area_struct *vma, unsigned long pfn, size_t size) { int ret = -ENXIO; - unsigned long nr_vma_pages = (vma->vm_end - vma->vm_start) >> - PAGE_SHIFT; + unsigned long nr_vma_pages = vma_pages(vma); unsigned long nr_pages = PAGE_ALIGN(size) >> PAGE_SHIFT; unsigned long off = vma->vm_pgoff; -- 2.7.4