On Mon, Sep 08, 2014 at 02:49:59PM -0700, Andy Lutomirski wrote:
> On Mon, Sep 8, 2014 at 7:10 AM, Aristeu Rozanski <aris@xxxxxxxxxx> wrote:
> > On Thu, Aug 14, 2014 at 02:45:41PM -0700, Andy Lutomirski wrote:
> >> sb_edac controls a large number of different PCI functions. Rather
> >> than registering as a normal PCI driver for all of them, it
> >> registers for just one so that it gets probed and, at probe time, it
> >> looks for all the others.
> >>
> >> Coincidentally, the device it registers for also contains the SMBUS
> >> registers, so the PCI core will refuse to probe both sb_edac and a
> >> future iMC SMBUS driver. The drivers don't actually conflict, so
> >> just change sb_edac's device table to probe a different device.
> >>
> >> An alternative fix would be to merge the two drivers, but sb_edac
> >> will also refuse to load on non-ECC systems, whereas i2c_imc would
> >> still be useful without ECC.
> >>
> >> The only user-visible change should be that sb_edac appears to bind
> >> a different device.
> >>
> >> Cc: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
> >> Cc: Rui Wang <ruiv.wang@xxxxxxxxx>
> >> Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
> >> ---
> >> drivers/edac/sb_edac.c | 2 +-
> >> 1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
> >> index a2597e9313c6..e3bc2cced580 100644
> >> --- a/drivers/edac/sb_edac.c
> >> +++ b/drivers/edac/sb_edac.c
> >> @@ -432,7 +432,7 @@ static const struct pci_id_table pci_dev_descr_ibridge_table[] = {
> >> * pci_device_id table for which devices we are looking for
> >> */
> >> static const struct pci_device_id sbridge_pci_tbl[] = {
> >> - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TA)},
> >> + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_HA0)},
> >> {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA)},
> >> {0,} /* 0 terminated list. */
> >> };
> >
> > Acked-by: Aristeu Rozanski <aris@xxxxxxxxxx>
> >
>
> Whose tree will this go through?
Mauro should have a tree for this as he's the subsystem maintainer.
thanks,
greg k-h
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