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Subject[PATCH v2 05/29] 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>
---
arch/x86/pci/common.c | 2 +-
arch/x86/pci/legacy.c | 3 ---
arch/x86/pci/numaq_32.c | 2 --
3 files changed, 1 insertions(+), 6 deletions(-)

diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 92df322..b389a2d 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 c89266b..6e3f26a 100644
--- a/arch/x86/pci/legacy.c
+++ b/arch/x86/pci/legacy.c
@@ -30,9 +30,6 @@ 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 512a88c..2b94aa9 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)


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