Re: [PATCH 2/2] virtio-net: delete also control queue when TX/RX deleted

["Michael S. Tsirkin" <mst@redhat.com>]

On Thu, Dec 26, 2019 at 06:36:49AM +0200, Yuri Benditovich wrote:
> https://bugzilla.redhat.com/show_bug.cgi?id=1708480
> If the control queue is not deleted together with TX/RX, it
> later will be ignored in freeing cache resources and hot
> unplug will not be completed.
> 
> Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
> ---
>  hw/net/virtio-net.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
> index db3d7c38e6..f325440d01 100644
> --- a/hw/net/virtio-net.c
> +++ b/hw/net/virtio-net.c
> @@ -3101,7 +3101,8 @@ static void virtio_net_device_unrealize(DeviceState *dev, Error **errp)
>      for (i = 0; i < max_queues; i++) {
>          virtio_net_del_queue(n, i);
>      }
> -
> +    /* delete also control vq */
> +    virtio_del_queue(vdev, max_queues * 2);
>      qemu_announce_timer_del(&n->announce_timer, false);
>      g_free(n->vqs);
>      qemu_del_nic(n->nic);

Do we need to limit this to when ctrl vq exists?

> -- 
> 2.17.1