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Re: [Xen-devel] [PATCH 4/5] xen/pciback: Expand the warning message to include domain id.



On Fri, Jan 06, 2012 at 08:38:09AM +0000, Jan Beulich wrote:
> >>> On 05.01.12 at 01:46, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> 
> >>> wrote:
> > When a PCI device is transferred to another domain and it is still
> > in usage (from the internal perspective), mention which other
> > domain is using it to aid in debugging.
> > 
> > Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> > ---
> >  drivers/xen/xen-pciback/xenbus.c |    6 ++++--
> >  1 files changed, 4 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/xen/xen-pciback/xenbus.c 
> > b/drivers/xen/xen-pciback/xenbus.c
> > index 474d52e..fa130bd 100644
> > --- a/drivers/xen/xen-pciback/xenbus.c
> > +++ b/drivers/xen/xen-pciback/xenbus.c
> > @@ -243,8 +243,10 @@ static int xen_pcibk_export_device(struct 
> > xen_pcibk_device *pdev,
> >     dev_dbg(&dev->dev, "registering for %d\n", pdev->xdev->otherend_id);
> >     if (xen_register_device_domain_owner(dev,
> >                                          pdev->xdev->otherend_id) != 0) {
> > -           dev_err(&dev->dev, "device has been assigned to another " \
> > -                   "domain! Over-writting the ownership, but beware.\n");
> > +           int other_domain = xen_find_device_domain_owner(dev);
> > +           dev_err(&dev->dev, "device has been assigned to %d " \
> > +                   "domain! Over-writting the ownership, but beware.\n",
> > +                   other_domain);
> 
> As you're touching this anyway, how about fixing the other minor
> issues with it too? E.g.
> 
>               dev_err(&dev->dev, "Device appears to be assigned to dom%d!"
>                       " Overwriting the ownership, but beware.\n",
>                       xen_find_device_domain_owner(dev));
> 
> (a native English speaker may want to comment the "but beware"
> part - it reads odd for me).

Hm, lets ask the English speakers. Ian?

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