Re: [qemu-s390x] [PATCH v2 09/10] hw/vfio/pci: Use the QOM DEVICE() macro to access DeviceState.qdev

[Alex Williamson]

On Tue, 28 May 2019 18:40:19 +0200
Philippe Mathieu-Daudé <address@hidden> wrote:

> Rather than looking inside the definition of a DeviceState with
> "s->qdev", use the QOM prefered style: "DEVICE(s)".
> 
> This patch was generated using the following Coccinelle script:
> 
>     // Use DEVICE() macros to access DeviceState.qdev
>     @use_device_macro_to_access_qdev@
>     expression obj;
>     identifier dev;
>     @@
>     -&obj->dev.qdev
>     +DEVICE(obj)
> 
> Suggested-by: Peter Maydell <address@hidden>
> Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
> ---
>  hw/vfio/pci.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)


Acked-by: Alex Williamson <address@hidden>


> diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
> index 8e555db12e..2a4091d216 100644
> --- a/hw/vfio/pci.c
> +++ b/hw/vfio/pci.c
> @@ -2717,7 +2717,7 @@ static void vfio_req_notifier_handler(void *opaque)
>          return;
>      }
>  
> -    qdev_unplug(&vdev->pdev.qdev, &err);
> +    qdev_unplug(DEVICE(vdev), &err);
>      if (err) {
>          warn_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
>      }
> @@ -2839,7 +2839,7 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
>      vdev->vbasedev.name = g_path_get_basename(vdev->vbasedev.sysfsdev);
>      vdev->vbasedev.ops = &vfio_pci_ops;
>      vdev->vbasedev.type = VFIO_DEVICE_TYPE_PCI;
> -    vdev->vbasedev.dev = &vdev->pdev.qdev;
> +    vdev->vbasedev.dev = DEVICE(vdev);
>  
>      tmp = g_strdup_printf("%s/iommu_group", vdev->vbasedev.sysfsdev);
>      len = readlink(tmp, group_path, sizeof(group_path));