The PCI core checks to see whether we've already scanned a bus, so we don't
need to do it in pcibios_scan_root(). Here's where it happens in the core:
pcibios_scan_root
pci_scan_bus_on_node
pci_scan_root_bus
pci_create_root_bus
b2 = pci_find_bus(pci_domain_nr(b), bus)
if (b2)
goto err_out; # already scanned this bus
This removes the check from pcibios_scan_root().
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
---
arch/x86/pci/common.c | 9 ---------
1 file changed, 9 deletions(-)
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 981c2dbd72cc..c47bb2288bb9 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -458,15 +458,6 @@ void __init dmi_check_pciprobe(void)
struct pci_bus *pcibios_scan_root(int busnum)
{
- struct pci_bus *bus = NULL;
-
- while ((bus = pci_find_next_bus(bus)) != NULL) {
- if (bus->number == busnum) {
- /* Already scanned */
- return bus;
- }
- }
-
return pci_scan_bus_on_node(busnum, &pci_root_ops,
get_mp_bus_to_node(busnum));
}
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