RE: [PATCH v2 net] net: enetc: fix VSI mailbox timeout handling and DMA lifecycle

[Wei Fang]

> > @@ -258,6 +281,7 @@ static int enetc_vf_probe(struct pci_dev *pdev,
> >  static void enetc_vf_remove(struct pci_dev *pdev)
> >  {
> >  	struct enetc_si *si = pci_get_drvdata(pdev);
> > +	struct enetc_msg_swbd msg = si->msg;
> >  	struct enetc_ndev_priv *priv;
> >
> >  	priv = netdev_priv(si->ndev);
> >  	unregister_netdev(si->ndev);
> 
> Is there a race between this local copy of si->msg and a concurrent
> ndo callback?

Yes, it is a risk. I noticed this warning from patchwork so I sent v3 yesterday.