AcoSail/kernel_optimize_test
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x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented()

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This doesn't change any functionality, but it makes a subsequent patch
slightly simpler.

pci_scan_bus(NULL, ...) and pci_scan_bus_parented() are identical except
that pci_scan_bus() also calls pci_bus_add_devices():

  pci_scan_bus_parented
    pci_create_bus
    pci_scan_child_bus

  pci_scan_bus
    pci_create_bus
    pci_scan_child_bus
    pci_bus_add_devices

All callers of pcibios_scan_root() call pci_bus_add_devices() explicitly,
and we don't pass a parent device, so we might as well use pci_scan_bus().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Bjorn Helgaas 2011-10-28 16:28:08 -06:00 committed by Jesse Barnes
parent 6361d72b04
commit 46fbade05c
3 changed files with 1 additions and 6 deletions
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2
arch/x86/pci/common.c
View File

@ -456,7 +456,7 @@ struct pci_bus * __devinit pcibios_scan_root(int busnum)
sd->node = get_mp_bus_to_node(busnum);
printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busnum);
bus = pci_scan_bus_parented(NULL, busnum, &pci_root_ops, sd);
bus = pci_scan_bus(busnum, &pci_root_ops, sd);
if (!bus)
kfree(sd);

3
arch/x86/pci/legacy.c
View File

@ -31,9 +31,6 @@ int __init pci_legacy_init(void)
printk("PCI: Probing PCI hardware\n");
pci_root_bus = pcibios_scan_root(0);
if (pci_root_bus)
pci_bus_add_devices(pci_root_bus);
return 0;
}

2
arch/x86/pci/numaq_32.c
View File

@ -153,8 +153,6 @@ int __init pci_numaq_init(void)
raw_pci_ops = &pci_direct_conf1_mq;
pci_root_bus = pcibios_scan_root(0);
if (pci_root_bus)
pci_bus_add_devices(pci_root_bus);
if (num_online_nodes() > 1)
for_each_online_node(quad) {
if (quad == 0)