PCI: convert pci_scan_bus() to use pci_create_root_bus()

I plan to deprecate pci_scan_bus_parented(), so use pci_create_root_bus()
directly instead.  pci_scan_bus() itself will be removed as soon as all
callers are gone, so this is just an interim step.

v2: export pci_scan_bus

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 7fc7e14..d09644b 100644 (file)
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1649,6 +1649,25 @@ struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent,
 }
 EXPORT_SYMBOL(pci_scan_bus_parented);
 
+struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops,
+                                       void *sysdata)
+{
+       LIST_HEAD(resources);
+       struct pci_bus *b;
+
+       pci_add_resource(&resources, &ioport_resource);
+       pci_add_resource(&resources, &iomem_resource);
+       b = pci_create_root_bus(NULL, bus, ops, sysdata, &resources);
+       if (b) {
+               b->subordinate = pci_scan_child_bus(b);
+               pci_bus_add_devices(b);
+       } else {
+               pci_free_resource_list(&resources);
+       }
+       return b;
+}
+EXPORT_SYMBOL(pci_scan_bus);
+
 #ifdef CONFIG_HOTPLUG
 /**
  * pci_rescan_bus - scan a PCI bus for devices.

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 5102d74..ff280e0 100644 (file)
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -661,15 +661,7 @@ extern struct pci_bus *pci_find_bus(int domain, int busnr);
 void pci_bus_add_devices(const struct pci_bus *bus);
 struct pci_bus *pci_scan_bus_parented(struct device *parent, int bus,
                                      struct pci_ops *ops, void *sysdata);
-static inline struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops,
-                                          void *sysdata)
-{
-       struct pci_bus *root_bus;
-       root_bus = pci_scan_bus_parented(NULL, bus, ops, sysdata);
-       if (root_bus)
-               pci_bus_add_devices(root_bus);
-       return root_bus;
-}
+struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata);
 struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
                                    struct pci_ops *ops, void *sysdata,
                                    struct list_head *resources);