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Date: Tue, 27 Dec 2022 02:39:21 -0500 From: "Michael S. Tsirkin" <mst@...hat.com> To: Jason Wang <jasowang@...hat.com> Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, maxime.coquelin@...hat.com, alvaro.karsz@...id-run.com, eperezma@...hat.com Subject: Re: [PATCH 1/4] virtio-net: convert rx mode setting to use workqueue 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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