[PATCH v13 10/12] PCI: Assign unassigned bus resources in pci_scan_root_bus()

From: Liviu Dudau
Date: Mon Sep 29 2014 - 10:31:27 EST


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;
}
--
2.1.1

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