Re: [PATCH net-next v2 2/3] virtio-net: support IFF_TX_SKB_NO_LINEAR

[Michael S. Tsirkin]

On Wed, Jan 20, 2021 at 03:49:10PM +0800, Xuan Zhuo wrote:
> Virtio net supports the case where the skb linear space is empty, so add
> priv_flags.
> 
> Signed-off-by: Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx>

Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx>

> ---
>  drivers/net/virtio_net.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> index ba8e637..f2ff6c3 100644
> --- a/drivers/net/virtio_net.c
> +++ b/drivers/net/virtio_net.c
> @@ -2972,7 +2972,8 @@ static int virtnet_probe(struct virtio_device *vdev)
>  		return -ENOMEM;
>  
>  	/* Set up network device as normal. */
> -	dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE;
> +	dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE |
> +			   IFF_TX_SKB_NO_LINEAR;
>  	dev->netdev_ops = &virtnet_netdev;
>  	dev->features = NETIF_F_HIGHDMA;
>  
> -- 
> 1.8.3.1