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Date:   Sun, 26 May 2019 13:44:04 +0200
From:   "Thomas Meyer" <thomas@...3r.de>
To:     unlisted-recipients:; (no To-header on input)

>From thomas@...3r.de Sun May 26 00:13:26 2019
Subject: [PATCH] vfio-pci/nvlink2: Use vma_pages function instead of explicit
 computation
To: alex.williamson@...hat.com, kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Content-Type: text/plain; charset="UTF-8"
Mime-Version: 1.0
Content-Transfer-Encoding: 8bit
X-Patch: Cocci
X-Mailer: DiffSplit
Message-ID: <1558822461341-1674464153-1-diffsplit-thomas@...3r.de>
References: <1558822461331-726613767-0-diffsplit-thomas@...3r.de>
In-Reply-To: <1558822461331-726613767-0-diffsplit-thomas@...3r.de>
X-Serial-No: 1

Use vma_pages function on vma object instead of explicit computation.

Signed-off-by: Thomas Meyer <thomas@...3r.de>
---

diff -u -p a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c
--- a/drivers/vfio/pci/vfio_pci_nvlink2.c
+++ b/drivers/vfio/pci/vfio_pci_nvlink2.c
@@ -161,7 +161,7 @@ static int vfio_pci_nvgpu_mmap(struct vf
 
 	atomic_inc(&data->mm->mm_count);
 	ret = (int) mm_iommu_newdev(data->mm, data->useraddr,
-			(vma->vm_end - vma->vm_start) >> PAGE_SHIFT,
+			vma_pages(vma),
 			data->gpu_hpa, &data->mem);
 
 	trace_vfio_pci_nvgpu_mmap(vdev->pdev, data->gpu_hpa, data->useraddr,