Re: [Xen-devel] [PATCH] xen: add bridge check

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Fri, May 25, 2012 at 02:05:17AM +0000, Zhang, Yang Z wrote:
> Hi konrad,
> Any comments with this patch?

Looks good. applied.

> 
> best regards
> yang
> 
> > -----Original Message-----
> > From: Zhang, Yang Z
> > Sent: Tuesday, May 22, 2012 4:40 PM
> > To: xen-devel@xxxxxxxxxxxxxxxxxxx
> > Cc: Konrad Rzeszutek Wilk [konrad.wilk@xxxxxxxxxx]
> > Subject: [PATCH] xen: add bridge check
> > 
> > Some SR-IOV devices may use more than one bus number, but there is no real
> > bridges
> > because that have internal routing mechanism. So need to check whether the
> > bridge is
> > existing before using it.
> > 
> > Signed-off-by: Yang Zhang <yang.z.zhang@xxxxxxxxx>
> > ---
> >  drivers/xen/pci.c |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> > 
> > diff --git a/drivers/xen/pci.c b/drivers/xen/pci.c
> > index b84bf0b..18fff88 100644
> > --- a/drivers/xen/pci.c
> > +++ b/drivers/xen/pci.c
> > @@ -59,7 +59,7 @@ static int xen_add_device(struct device *dev)
> > 
> >  #ifdef CONFIG_ACPI
> >         handle = DEVICE_ACPI_HANDLE(&pci_dev->dev);
> > -       if (!handle)
> > +       if (!handle && pci_dev->bus->bridge)
> >             handle = DEVICE_ACPI_HANDLE(pci_dev->bus->bridge);
> >  #ifdef CONFIG_PCI_IOV
> >         if (!handle && pci_dev->is_virtfn)
> 
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