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authorYu Zhao <yu.zhao@intel.com>2008-11-22 02:42:35 +0800
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-01-07 11:13:06 -0800
commit876e501ab25dcd683574a5d3d56d8fe450083ed6 (patch)
tree0ffefee783b1645e413a8ffa6fb0b615c41862cc /drivers
parent3fa16fdb48e0d83c2acf46e357548c89891df58b (diff)
PCI: factor pci_bus_add_child() from pci_bus_add_devices()
This patch splits a new function, pci_bus_add_child(), from pci_bus_add_devices(). The new function can be used to register PCI buses to the device core. Signed-off-by: Yu Zhao <yu.zhao@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pci/bus.c56
-rw-r--r--drivers/pci/pci.h1
2 files changed, 34 insertions, 23 deletions
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 1b6de1b565aa..52b54f053be0 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -91,6 +91,37 @@ int pci_bus_add_device(struct pci_dev *dev)
}
/**
+ * pci_bus_add_child - add a child bus
+ * @bus: bus to add
+ *
+ * This adds sysfs entries for a single bus
+ */
+int pci_bus_add_child(struct pci_bus *bus)
+{
+ int retval;
+
+ if (bus->bridge)
+ bus->dev.parent = bus->bridge;
+
+ retval = device_register(&bus->dev);
+ if (retval)
+ return retval;
+
+ bus->is_added = 1;
+
+ retval = device_create_file(&bus->dev, &dev_attr_cpuaffinity);
+ if (retval)
+ return retval;
+
+ retval = device_create_file(&bus->dev, &dev_attr_cpulistaffinity);
+
+ /* Create legacy_io and legacy_mem files for this bus */
+ pci_create_legacy_files(bus);
+
+ return retval;
+}
+
+/**
* pci_bus_add_devices - insert newly discovered PCI devices
* @bus: bus to check for new devices
*
@@ -140,30 +171,9 @@ void pci_bus_add_devices(struct pci_bus *bus)
*/
if (child->is_added)
continue;
- child->dev.parent = child->bridge;
- retval = device_register(&child->dev);
+ retval = pci_bus_add_child(child);
if (retval)
- dev_err(&dev->dev, "Error registering pci_bus,"
- " continuing...\n");
- else {
- child->is_added = 1;
- retval = device_create_file(&child->dev,
- &dev_attr_cpuaffinity);
- if (retval)
- dev_err(&dev->dev, "Error creating cpuaffinity"
- " file, continuing...\n");
-
- retval = device_create_file(&child->dev,
- &dev_attr_cpulistaffinity);
- if (retval)
- dev_err(&dev->dev,
- "Error creating cpulistaffinity"
- " file, continuing...\n");
-
- /* Create legacy_io and legacy_mem files for this bus */
- pci_create_legacy_files(child_bus);
-
- }
+ dev_err(&dev->dev, "Error adding bus, continuing\n");
}
}
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index c4f4a1e6ea28..d1e92d83aa06 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -173,6 +173,7 @@ extern int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
struct resource *res, unsigned int reg);
extern int pci_resource_bar(struct pci_dev *dev, int resno,
enum pci_bar_type *type);
+extern int pci_bus_add_child(struct pci_bus *bus);
extern void pci_enable_ari(struct pci_dev *dev);
/**
* pci_ari_enabled - query ARI forwarding status