Assure that MPS settings are set up for bridges which are discovered
during manually triggered rescan via sysfs. This sequence of bridge
init (using pci_rescan_bus()) will be used for pciehp hot-add events
when BARs are movable.
Signed-off-by: Sergey Miroshnichenko <s.miroshnichenko@xxxxxxxxx>
---
drivers/pci/probe.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 5f52a19738aa..4bb10d27cb3a 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -3688,7 +3688,7 @@ static void pci_reassign_root_bus_resources(struct pci_bus *root)
unsigned int pci_rescan_bus(struct pci_bus *bus)
{
unsigned int max;
- struct pci_bus *root = bus;
+ struct pci_bus *root = bus, *child;
while (!pci_is_root_bus(root))
root = root->parent;
@@ -3708,6 +3708,9 @@ unsigned int pci_rescan_bus(struct pci_bus *bus)
pci_assign_unassigned_bus_resources(bus);
}
+ list_for_each_entry(child, &root->children, node)
+ pcie_bus_configure_settings(child);
+
pci_bus_add_devices(bus);
return max;
--
2.21.0
