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

[Liviu Dudau]

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 at arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas at google.com>
CC: Arnd Bergmann <arnd at arndb.de>
CC: Jason Gunthorpe <jgunthorpe at obsidianresearch.com>
CC: Rob Herring <robh+dt at kernel.org>
---
 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