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>
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index faa1d29..ce04eb2 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -526,7 +526,7 @@
if (system_state != SYSTEM_BOOTING) {
pcibios_resource_survey_bus(root->bus);
- pci_assign_unassigned_bus_resources(root->bus);
+ pci_assign_unassigned_root_bus_resources(root->bus);
}
pci_bus_add_devices(root->bus);