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[RFC,07/11] powerpc/pci: Don't reduce the host bridge bus range

Message ID 20191024172157.878735-8-s.miroshnichenko@yadro.com
State New
Delegated to: Bjorn Helgaas
Headers show
Series PCI: hotplug: Movable bus numbers | expand

Commit Message

Sergei Miroshnichenko Oct. 24, 2019, 5:21 p.m. UTC
Currently the last possible bus number of the PHB is set to the last
used bus number during the boot. So when hotplugging a bridge later,
no new buses can be allocated because they are limited by this value.

Let the host bridge contain any number of buses up to 255.

Signed-off-by: Sergey Miroshnichenko <s.miroshnichenko@yadro.com>
 arch/powerpc/kernel/pci-common.c | 1 -
 1 file changed, 1 deletion(-)
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diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 1c448cf25506..5877ef7a39a0 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1631,7 +1631,6 @@  void pcibios_scan_phb(struct pci_controller *hose)
 	if (mode == PCI_PROBE_NORMAL) {
 		pci_bus_update_busn_res_end(bus, 255);
 		hose->last_busno = pci_scan_child_bus(bus);
-		pci_bus_update_busn_res_end(bus, hose->last_busno);
 	/* Platform gets a chance to do some global fixups before