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

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>

3 files changed, 1 insertions, 6 deletions

diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 7962ccb4d9b2..07c55ce6fdf5 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -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);
 
diff --git a/arch/x86/pci/legacy.c b/arch/x86/pci/legacy.c
index 2c2aeabc2609..a1df191129d3 100644
--- a/arch/x86/pci/legacy.c
+++ b/arch/x86/pci/legacy.c
@@ -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;
 }
 
diff --git a/arch/x86/pci/numaq_32.c b/arch/x86/pci/numaq_32.c
index 51abf02f9226..83e125b95ca6 100644
--- a/arch/x86/pci/numaq_32.c
+++ b/arch/x86/pci/numaq_32.c
@@ -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)