PCI: Assign resources for hot-added host bridge more aggressively

When hot-adding an ACPI host bridge, use
pci_assign_unassigned_root_bus_resources() instead of
pci_assign_unassigned_bus_resources().

The former is more aggressive and will release and reassign existing
resources if necessary.  This is safe at hot-add time because no drivers
are bound to devices below the new host bridge yet.

[bhelgaas: changelog, split __init changes out for reviewability]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 8d1e654256a8..94b777d108bb 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -1395,7 +1395,7 @@ static enum enable_type pci_realloc_detect(struct pci_bus *bus,
  * second  and later try will clear small leaf bridge res
  * will stop till to the max  deepth if can not find good one
  */
-static void pci_assign_unassigned_root_bus_resources(struct pci_bus *bus)
+void pci_assign_unassigned_root_bus_resources(struct pci_bus *bus)
 {
         LIST_HEAD(realloc_head); /* list of resources that
                                         want additional resources */