Re: [PATCH 1/1] virtio_pci: use common helper to configure SR-IOV

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On Thu, Sep 29, 2022 at 02:40:08AM +0300, Max Gurtovoy wrote:
> This is instead of re-writing the same logic in virtio driver.
> 
> Signed-off-by: Max Gurtovoy <mgurtovoy@xxxxxxxxxx>

Dropped this as it caused build failures:

https://lore.kernel.org/r/202210080424.gSmuYfb0-lkp%40intel.com

> ---
>  drivers/virtio/virtio_pci_common.c | 15 +--------------
>  1 file changed, 1 insertion(+), 14 deletions(-)
> 
> diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c
> index ad258a9d3b9f..67d3970e57f2 100644
> --- a/drivers/virtio/virtio_pci_common.c
> +++ b/drivers/virtio/virtio_pci_common.c
> @@ -607,7 +607,6 @@ static int virtio_pci_sriov_configure(struct pci_dev *pci_dev, int num_vfs)
>  {
>  	struct virtio_pci_device *vp_dev = pci_get_drvdata(pci_dev);
>  	struct virtio_device *vdev = &vp_dev->vdev;
> -	int ret;
>  
>  	if (!(vdev->config->get_status(vdev) & VIRTIO_CONFIG_S_DRIVER_OK))
>  		return -EBUSY;
> @@ -615,19 +614,7 @@ static int virtio_pci_sriov_configure(struct pci_dev *pci_dev, int num_vfs)
>  	if (!__virtio_test_bit(vdev, VIRTIO_F_SR_IOV))
>  		return -EINVAL;
>  
> -	if (pci_vfs_assigned(pci_dev))
> -		return -EPERM;
> -
> -	if (num_vfs == 0) {
> -		pci_disable_sriov(pci_dev);
> -		return 0;
> -	}
> -
> -	ret = pci_enable_sriov(pci_dev, num_vfs);
> -	if (ret < 0)
> -		return ret;
> -
> -	return num_vfs;
> +	return pci_sriov_configure_simple(pci_dev, num_vfs);
>  }
>  
>  static struct pci_driver virtio_pci_driver = {
> -- 
> 2.18.1




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