Messages in this thread Patch in this message | | | From | Leon Romanovsky <> | Subject | [PATCH mlx5-next 3/7] vfio/pci_core: Make the region->release() function optional | Date | Wed, 22 Sep 2021 13:38:52 +0300 |
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From: Yishai Hadas <yishaih@nvidia.com>
Make the region->release() function optional as in some cases there is nothing to do by driver as part of it.
This is needed for coming patch from this series once we add mlx5_vfio_cpi driver to support live migration but we don't need a migration release function.
Signed-off-by: Yishai Hadas <yishaih@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> --- drivers/vfio/pci/vfio_pci_core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c index 68198e0f2a63..3ddc3adb24de 100644 --- a/drivers/vfio/pci/vfio_pci_core.c +++ b/drivers/vfio/pci/vfio_pci_core.c @@ -341,7 +341,8 @@ void vfio_pci_core_disable(struct vfio_pci_core_device *vdev) vdev->virq_disabled = false; for (i = 0; i < vdev->num_regions; i++) - vdev->region[i].ops->release(vdev, &vdev->region[i]); + if (vdev->region[i].ops->release) + vdev->region[i].ops->release(vdev, &vdev->region[i]); vdev->num_regions = 0; kfree(vdev->region); -- 2.31.1
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