On 17/05/2019 00:48, Alex Williamson wrote: > [Cc Alexey + kvm] > > On Thu, 16 May 2019 20:38:26 +0800 > "richard.peng@xxxxxxxx" <richard.peng@xxxxxxxx> wrote: > >> Use a vma helper function to simply code. >> >> Signed-off-by: Peng Hao <richard.peng@xxxxxxxx> >> --- >> drivers/vfio/pci/vfio_pci_nvlink2.c | 3 +-- >> 1 file changed, 1 insertion(+), 2 deletions(-) >> >> diff --git a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c >> index 32f695ffe128..dc42aa0e47f6 100644 >> --- a/drivers/vfio/pci/vfio_pci_nvlink2.c >> +++ b/drivers/vfio/pci/vfio_pci_nvlink2.c >> @@ -161,8 +161,7 @@ static int vfio_pci_nvgpu_mmap(struct vfio_pci_device *vdev, >> >> atomic_inc(&data->mm->mm_count); >> ret = (int) mm_iommu_newdev(data->mm, data->useraddr, >> - (vma->vm_end - vma->vm_start) >> PAGE_SHIFT, >> - data->gpu_hpa, &data->mem); >> + vma_pages(vma), data->gpu_hpa, &data->mem); I did not realize we have been having this mighty helper since 2005 :) Reviewed-by: Alexey Kardashevskiy <aik@xxxxxxxxx> >> >> trace_vfio_pci_nvgpu_mmap(vdev->pdev, data->gpu_hpa, data->useraddr, >> vma->vm_end - vma->vm_start, ret); >> -- >> 2.20.1 -- Alexey