Re: [PATCH vhost v6 09/10] virtio_net: set premapped mode by find_vqs()

[Jason Wang <jasowang@xxxxxxxxxx>]

On Wed, Mar 27, 2024 at 7:14 PM Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx> wrote:
>
> Now, the virtio core can set the premapped mode by find_vqs().
> If the premapped can be enabled, the dma array will not be
> allocated. So virtio-net use the api of find_vqs to enable the
> premapped.
>
> Judge the premapped mode by the vq->premapped instead of saving
> local variable.
>
> Signed-off-by: Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx>
> ---

I wonder what's the reason to keep a fallback when premapped is not enabled?

Thanks