On 05/10/17 13:16, Allen Pais wrote: > Use vma_pages function on vma object instead of explicit computation. > This is a clean up patch.
A version of this is already queued for -next here: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/commit/?h=for-next/core&id=b4f4a2755665bf847231050b569f587ce0945482 Thanks, Robin. > Signed-off-by: Allen Pais <allen.p...@oracle.com> > --- > 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; > >
