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powerpc/PCI: Use list_for_each_entry() for bus traversal 

Replace list_for_each() + pci_bus_b() with list_for_each_entry().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Yijing Wang 2014-02-13 21:14:01 +08:00 committed by Bjorn Helgaas
parent 59c1ad3b82
commit 3bc955987f
2 changed files with 4 additions and 6 deletions
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4
arch/powerpc/kernel/pci_64.c
View File

@ -208,7 +208,6 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus,
unsigned long in_devfn) unsigned long in_devfn)
{ {
struct pci_controller* hose; struct pci_controller* hose;
struct list_head *ln;
struct pci_bus *bus = NULL; struct pci_bus *bus = NULL;
struct device_node *hose_node; struct device_node *hose_node;
@ -230,8 +229,7 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus,
* used on pre-domains setup. We return the first match * used on pre-domains setup. We return the first match
*/ */
for (ln = pci_root_buses.next; ln != &pci_root_buses; ln = ln->next) { list_for_each_entry(bus, &pci_root_buses, node) {
bus = pci_bus_b(ln);
if (in_bus >= bus->number && in_bus <= bus->busn_res.end) if (in_bus >= bus->number && in_bus <= bus->busn_res.end)
break; break;
bus = NULL; bus = NULL;

6
arch/powerpc/platforms/pseries/pci_dlpar.c
View File

@ -37,15 +37,15 @@ find_bus_among_children(struct pci_bus *bus,
struct device_node *dn) struct device_node *dn)
{ {
struct pci_bus *child = NULL; struct pci_bus *child = NULL;
struct list_head *tmp; struct pci_bus *tmp;
struct device_node *busdn; struct device_node *busdn;
busdn = pci_bus_to_OF_node(bus); busdn = pci_bus_to_OF_node(bus);
if (busdn == dn) if (busdn == dn)
return bus; return bus;
list_for_each(tmp, &bus->children) { list_for_each_entry(tmp, &bus->children, node) {
child = find_bus_among_children(pci_bus_b(tmp), dn); child = find_bus_among_children(tmp, dn);
if (child) if (child)
break; break;
}; };