So after remove all children and then using setpci change bus register and rescan bridge could use new set bus number.
Otherwise need to rescan parent bus, it would have too much overhead. also need to use pci_bus_add_single_device to make sure new change bus have directory /sys/../.../pci_bus. Signed-off-by: Yinghai Lu <[email protected]> --- drivers/pci/probe.c | 10 ++++++---- 1 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index d1796fe..59345ac 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1879,14 +1879,16 @@ EXPORT_SYMBOL(pci_scan_bus); */ unsigned int __ref pci_rescan_bus_bridge_resize(struct pci_dev *bridge) { - unsigned int max; - struct pci_bus *bus = bridge->subordinate; + unsigned int max = 0; + int pass; + struct pci_bus *bus = bridge->bus; - max = pci_scan_child_bus(bus); + for (pass = 0; pass < 2; pass++) + max = pci_scan_bridge(bus, bridge, max, pass); pci_assign_unassigned_bridge_resources(bridge); - pci_bus_add_devices(bus); + pci_bus_add_single_device(bridge); return max; } -- 1.7.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
