Use vma_pages function on vma object instead of explicit computation. Found by coccinelle spatch "api/vma_pages.cocci"
Signed-off-by: Thomas Meyer <[email protected]> --- diff -u -p a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c --- 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_ 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;
