On Tue, Sep 23, 2014 at 08:01:12PM +0100, Liviu Dudau wrote: > If the firmware has not assigned all the bus resources and > we are not just probing the PCIe busses, it makes sense to > assign the unassigned resources in pci_scan_root_bus(). > > Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> > Cc: Arnd Bergmann <arnd@xxxxxxxx> > Cc: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx> > Cc: Rob Herring <robh+dt@xxxxxxxxxx> > Signed-off-by: Liviu Dudau <Liviu.Dudau@xxxxxxx> > --- > drivers/pci/probe.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c > index ef891d2..508cf61 100644 > --- a/drivers/pci/probe.c > +++ b/drivers/pci/probe.c > @@ -1953,6 +1953,9 @@ struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, > if (!found) > pci_bus_update_busn_res_end(b, max); > > + if (!pci_has_flag(PCI_PROBE_ONLY)) > + pci_assign_unassigned_bus_resources(b); > + > pci_bus_add_devices(b); > return b; > } > -- > 2.1.0 > Bjorn, If you are OK with this patch, can you let me know how do you feel about making pci_scan_root_bus() set up the bus->msi pointer as well? Side note: I don't know exactly how to do it now, but setting bus->msi is needed by platforms that are based on my patches and want to use MSI, otherwise they have to open code pci_scan_root_bus() to set it. I haven't made any attempts to do it in this series as the GICv2m patches are not ready yet, but I can see the need arriving soon. Best regards, Liviu > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- ------------------- .oooO ( ) \ ( Oooo. \_) ( ) ) / (_/ One small step for me ... -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
