From: Libin Date: Mon, 15 Apr 2013 02:48:54 +0000 (+0000) Subject: PCI: Use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT X-Git-Tag: firefly_0821_release~3680^2~680^2~4^2~1 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=64b001758e778b2b1aad08aa1f6c5896da5f5773;p=firefly-linux-kernel-4.4.55.git PCI: Use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT (*->vm_end - *->vm_start) >> PAGE_SHIFT operation is implemented as an inline funcion vma_pages() in linux/mm.h, so use it. Signed-off-by: Libin Signed-off-by: Bjorn Helgaas --- diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 9c6e9bb674ec..5b4a9d9cd200 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) ?