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vfio: use vfio_pci_core_setup_barmap to map bar in mmap

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Remove code duplication in vfio_pci_core_mmap by calling
vfio_pci_core_setup_barmap to perform the bar mapping.

No functional change is intended.

Cc: Donald Dutile <ddutile@redhat.com>
Reviewed-by: Shameer Kolothum <skolothumtho@nvidia.com>
Reviewed-by: Zhi Wang <zhiw@nvidia.com>
Suggested-by: Alex Williamson <alex@shazbot.org>
Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Link: https://lore.kernel.org/r/20251127170632.3477-4-ankita@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
This commit is contained in:
Ankit Agrawal 2025-11-27 17:06:29 +00:00 committed by Alex Williamson
parent 9db65489b8
commit 7f5764e179
1 changed files with 3 additions and 12 deletions
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15
drivers/vfio/pci/vfio_pci_core.c
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@ -1761,18 +1761,9 @@ int vfio_pci_core_mmap(struct vfio_device *core_vdev, struct vm_area_struct *vma
* Even though we don't make use of the barmap for the mmap,
* we need to request the region and the barmap tracks that.
*/
if (!vdev->barmap[index]) {
ret = pci_request_selected_regions(pdev,
1 << index, "vfio-pci");
if (ret)
return ret;
vdev->barmap[index] = pci_iomap(pdev, index, 0);
if (!vdev->barmap[index]) {
pci_release_selected_regions(pdev, 1 << index);
return -ENOMEM;
}
}
ret = vfio_pci_core_setup_barmap(vdev, index);
if (ret)
return ret;
vma->vm_private_data = vdev;
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);