[dpdk-dev] [PATCH v6 2/2] net/virtio: fix PCI config err handling

Tiwei Bie tiwei.bie at intel.com
Thu Oct 11 15:01:01 CEST 2018


On Thu, Oct 11, 2018 at 11:53:12AM +0100, Luca Boccassi wrote:
> On Thu, 2018-10-11 at 12:27 +0200, Thomas Monjalon wrote:
> > 28/08/2018 12:12, Luca Boccassi:
> > > From: Brian Russell <brussell at brocade.com>
> > > 
> > > In virtio_read_caps and vtpci_msix_detect, rte_pci_read_config
> > > returns
> > > the number of bytes read from PCI config or < 0 on error.
> > > If less than the expected number of bytes are read then log the
> > > failure and return rather than carrying on with garbage.
> > > 
> > > Fixes: 6ba1f63b5ab0 ("virtio: support specification 1.0")
> > > 
> > > Signed-off-by: Brian Russell <brussell at brocade.com>
> > > Signed-off-by: Luca Boccassi <bluca at debian.org>
> > > ---
> > > v2: handle additional rte_pci_read_config incomplete reads
> > > v3: do not handle rte_pci_read_config of virtio cap, added in v2,
> > >     as it's less clear what the right thing to do there is
> > > v4: do a more robust check - first check what the vendor is, and
> > >     skip the cap entirely if it's not what we are looking for.
> > > v5: fetch only 2 flags bytes if the vndr is PCI_CAP_ID_MSIX
> > > v6: fix 32bit build by changing the printf format specifier, fix
> > > patch title
> > 
> > Tiwei did a comment on v5 and provided his Reviewed-by.
> > Is it OK to apply v6 with its tag?
> > All is fixed?
> 
> Hi,
> 
> The title has been fixed (virtio -> net/virtio) and I just tried a
> 32bit build and it works fine after the fix from v6.

Thanks Luca!

Reviewed-by: Tiwei Bie <tiwei.bie at intel.com>

> 
> -- 
> Kind regards,
> Luca Boccassi


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