From mboxrd@z Thu Jan 1 00:00:00 1970 From: mkarthi3@visteon.com (Mutharaju, Prasanna (P.)) Date: Tue, 24 Nov 2015 07:38:12 +0000 Subject: [PATCH] ARM: MM: Simplify using vma_pages function Message-ID: <20151124073805.GA23513@jci-VirtualBox> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Prasanna Karthik Use vma_pages function on vma object instead of explicit computation. Signed-off-by: Prasanna Karthik --- arch/arm/mm/dma-mapping.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index ad4eb2d..513e213 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -694,7 +694,7 @@ static int __arm_dma_mmap(struct device *dev, struct vm_area_struct *vma, { int ret = -ENXIO; #ifdef CONFIG_MMU - 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 pfn = dma_to_pfn(dev, dma_addr); unsigned long off = vma->vm_pgoff; -- 1.9.1