Re: [PATCH] vfio: vfio_pci_nvlink2: use a vma helper function

[Alexey Kardashevskiy]

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>
>> ---
>> Âdrivers/vfio/pci/vfio_pci_nvlink2.c | 3 +--
>> Â1 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,
>> Â
>> Â	atomic_inc(&data->mm->mm_count);
>> Â	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>



>> Â
>> Â	trace_vfio_pci_nvgpu_mmap(vdev->pdev, data->gpu_hpa, data->useraddr,
>> Â			vma->vm_end - vma->vm_start, ret);
>> --Â
>> 2.20.1

-- 
Alexey