| Message ID | 20151124073805.GA23513@jci-VirtualBox (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hello, On 2015-11-24 08:38, Mutharaju, Prasanna (P.) wrote: > From: Prasanna Karthik <mkarthi3@visteon.com> > > Use vma_pages function on vma object instead of explicit computation. > > Signed-off-by: Prasanna Karthik <mkarthi3@visteon.com> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> > --- > 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; Best regards
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;