Re: [PATCH 2/6] PCI: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT

On Mon, Apr 15, 2013 at 6:48 AM, Libin huawei.libin@huawei.com wrote:

(*->vm_end - *->vm_start) >> PAGE_SHIFT operation is implemented as a inline funcion vma_pages() in linux/mm.h, so using it.

Signed-off-by: Libin huawei.libin@huawei.com

Applied to my pci/misc branch for v3.10, thanks!

Bjorn

---

drivers/pci/pci-sysfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 9c6e9bb..5b4a9d9 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -897,7 +897,7 @@ int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vma,

    if (pci_resource_len(pdev, resno) == 0)
            return 0;

•   nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
  

•   nr = vma_pages(vma);
    start = vma->vm_pgoff;
    size = ((pci_resource_len(pdev, resno) - 1) >> PAGE_SHIFT) + 1;
    pci_start = (mmap_api == PCI_MMAP_PROCFS) ?
  

-- 1.8.2.1