Messages in this thread Patch in this message | | | Subject | [PATCH 01/17] x86/PCI: Drop pcibios_scan_root() check for bus already scanned | From | Bjorn Helgaas <> | Date | Wed, 29 Jan 2014 11:17:33 -0700 |
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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@google.com> --- 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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