On Mon, Sep 29, 2014 at 11:25 AM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote: > On Mon, Sep 29, 2014 at 7:29 AM, Liviu Dudau <Liviu.Dudau@xxxxxxx> wrote: >> If the firmware has not assigned all the bus resources and we are not just >> probing the PCI buses, it makes sense to assign the unassigned resources >> in pci_scan_root_bus(). >> >> Signed-off-by: Liviu Dudau <Liviu.Dudau@xxxxxxx> >> Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> >> CC: Arnd Bergmann <arnd@xxxxxxxx> >> CC: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx> >> CC: Rob Herring <robh+dt@xxxxxxxxxx> >> --- >> drivers/pci/probe.c | 3 +++ >> 1 file changed, 3 insertions(+) >> >> diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c >> index 636d1c9..d2ebd49 100644 >> --- a/drivers/pci/probe.c >> +++ b/drivers/pci/probe.c >> @@ -1951,6 +1951,9 @@ 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; >> } > > No, you can not do it that early. > > On x86, we need to call > pcibios_resource_survey_bus at first. on x86: pcibios_init pcibios_resource_survey() pcibios_assign_resources() via fs_initcall -- 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
