[PATCH v13 17/42] virtio_ring: packed: introduce vring_free_packed

[Jason Wang]

在 2022/7/26 15:22, Xuan Zhuo 写道:
> Free the structure struct vring_vritqueue_packed.
>
> Subsequent patches require it.
>
> Signed-off-by: Xuan Zhuo <xuanzhuo at linux.alibaba.com>


Acked-by: Jason Wang <jasowang at redhat.com>


> ---
>   drivers/virtio/virtio_ring.c | 22 ++++++++++++++++++++++
>   1 file changed, 22 insertions(+)
>
> diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
> index 58355e1ac7d7..891900b31c3d 100644
> --- a/drivers/virtio/virtio_ring.c
> +++ b/drivers/virtio/virtio_ring.c
> @@ -1835,6 +1835,28 @@ static struct vring_desc_extra *vring_alloc_desc_extra(unsigned int num)
>   	return desc_extra;
>   }
>   
> +static void vring_free_packed(struct vring_virtqueue_packed *vring_packed,
> +			      struct virtio_device *vdev)
> +{
> +	if (vring_packed->vring.desc)
> +		vring_free_queue(vdev, vring_packed->ring_size_in_bytes,
> +				 vring_packed->vring.desc,
> +				 vring_packed->ring_dma_addr);
> +
> +	if (vring_packed->vring.driver)
> +		vring_free_queue(vdev, vring_packed->event_size_in_bytes,
> +				 vring_packed->vring.driver,
> +				 vring_packed->driver_event_dma_addr);
> +
> +	if (vring_packed->vring.device)
> +		vring_free_queue(vdev, vring_packed->event_size_in_bytes,
> +				 vring_packed->vring.device,
> +				 vring_packed->device_event_dma_addr);
> +
> +	kfree(vring_packed->desc_state);
> +	kfree(vring_packed->desc_extra);
> +}
> +
>   static struct virtqueue *vring_create_virtqueue_packed(
>   	unsigned int index,
>   	unsigned int num,