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SubjectRe: [PATCH] vfio: Extended capability fixes
Date
On Tuesday, November 02, 2010 12:11:08 pm Michael S. Tsirkin wrote:
> On Mon, Nov 01, 2010 at 11:08:35PM -0600, Alex Williamson wrote:
> > - Virtual channel position gets truncated as a u8
> >
> > - Print the ecap that's unknown, not the last cap we saw
> > - Print actual config offset, which provides enough info to make
> >
> > some sense of the error.
> >
> > Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
> > ---
> >
> > drivers/vfio/vfio_pci_config.c | 8 ++++----
> > 1 files changed, 4 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/vfio/vfio_pci_config.c
> > b/drivers/vfio/vfio_pci_config.c index 8af995d..8304316 100644
> > --- a/drivers/vfio/vfio_pci_config.c
> > +++ b/drivers/vfio/vfio_pci_config.c
> > @@ -410,7 +410,7 @@ static int vfio_msi_cap_len(struct vfio_dev *vdev, u8
> > pos)
> >
> > * Determine extended capability length for VC (2 & 9) and
> > * MFVC capabilities
> > */
> >
> > -static int vfio_vc_cap_len(struct vfio_dev *vdev, u8 pos)
> > +static int vfio_vc_cap_len(struct vfio_dev *vdev, u16 pos)
> >
> > {
> >
> > struct pci_dev *pdev = vdev->pdev;
> > u32 dw;
> >
> > @@ -580,7 +580,7 @@ int vfio_build_config_map(struct vfio_dev *vdev)
> >
> > printk(KERN_WARNING
> >
> > "%s: pci config conflict at %x, "
> > "caps %x %x\n",
> >
> > - __func__, i, map[pos+i], cap);
> > + __func__, pos+i, map[pos+i], cap);
> >
> > map[pos+i] = cap;
> >
> > }
> > ret = pci_read_config_byte(pdev, pos + PCI_CAP_LIST_NEXT, &pos);
> >
> > @@ -683,7 +683,7 @@ int vfio_build_config_map(struct vfio_dev *vdev)
> >
> > if (len == 0 || len == 0xFF) {
> >
> > printk(KERN_WARNING
> >
> > "%s: unknown length for pci ext cap %x\n",
> >
> > - __func__, cap);
> > + __func__, ecap);
> >
> > len = PCI_CAP_SIZEOF;
> >
> > }
> > for (i = 0; i < len; i++) {
> >
> > @@ -691,7 +691,7 @@ int vfio_build_config_map(struct vfio_dev *vdev)
> >
> > printk(KERN_WARNING
> >
> > "%s: pci config conflict at %x, "
> > "caps %x %x\n",
> >
> > - __func__, i, map[epos+i], ecap);
> > + __func__, epos+i, map[epos+i], ecap);
> >
> > map[epos+i] = ecap;
>
> Not related to this patch, but I am surprised checkpatch does not
> complain about lack of spaces around + here and elsewhere.
> Or does it?
It did not complain.

>
> > }
> >
> > --
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