Re: [PATCH 1/4] virtio-net: convert rx mode setting to use workqueue

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On Mon, Dec 26, 2022 at 03:49:05PM +0800, Jason Wang wrote:
> @@ -2227,9 +2267,21 @@ static void virtnet_set_rx_mode(struct net_device *dev)
>  				  VIRTIO_NET_CTRL_MAC_TABLE_SET, sg))
>  		dev_warn(&dev->dev, "Failed to set MAC filter table.\n");
>  
> +	rtnl_unlock();
> +
>  	kfree(buf);
>  }
>  
> +static void virtnet_set_rx_mode(struct net_device *dev)
> +{
> +	struct virtnet_info *vi = netdev_priv(dev);
> +
> +	spin_lock(&vi->rx_mode_lock);
> +	if (vi->rx_mode_work_enabled)
> +		schedule_work(&vi->rx_mode_work);
> +	spin_unlock(&vi->rx_mode_lock);
> +}
> +
>  static int virtnet_vlan_rx_add_vid(struct net_device *dev,
>  				   __be16 proto, u16 vid)
>  {

Hmm so user tells us to e.g enable promisc. We report completion
but card is still dropping packets. I think this
has a chance to break some setups.

-- 
MST

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