Intel DP43BF requires "pci=assign-busses" to discover some devices. It turns out BIOS set the bridge 00:1e.0 bus register wrong. Try to check that wrong range and reject so next pass could only assign bus for that bridge. https://bugzilla.kernel.org/show_bug.cgi?id=18412 Reported-by: VL <vl.homutov@xxxxxxxxx> Tested-by: VL <vl.homutov@xxxxxxxxx> Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 3cdba8b..a8f1bf6 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -729,7 +729,8 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, /* Check if setup is sensible at all */ if (!pass && - (primary != bus->number || secondary <= bus->number)) { + (primary != bus->number || secondary <= bus->number || + secondary > subordinate)) { dev_dbg(&dev->dev, "bus configuration invalid, reconfiguring\n"); broken = 1; } -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
