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authormerge <null@invalid>2009-01-22 13:55:32 +0000
committerAndy Green <agreen@octopus.localdomain>2009-01-22 13:55:32 +0000
commitaa6f5ffbdba45aa8e19e5048648fc6c7b25376d3 (patch)
treefbb786d0ac6f8a774fd834e9ce951197e60fbffa /drivers/pci/bus.c
parentf2d78193eae5dccd3d588d2c8ea0866efc368332 (diff)
MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141
pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage: From: merge <null@invalid> MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage: From: merge <null@invalid> MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage: From: Andy Green <andy@openmoko.com> fix-stray-endmenu.patch Signed-off-by: Andy Green <andy@openmoko.com>
Diffstat (limited to 'drivers/pci/bus.c')
-rw-r--r--drivers/pci/bus.c87
1 files changed, 51 insertions, 36 deletions
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 999cc4088b5..52b54f053be 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -71,7 +71,7 @@ pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
}
/**
- * add a single device
+ * pci_bus_add_device - add a single device
* @dev: device to add
*
* This adds a single pci device to the global
@@ -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
*
@@ -105,7 +136,7 @@ int pci_bus_add_device(struct pci_dev *dev)
void pci_bus_add_devices(struct pci_bus *bus)
{
struct pci_dev *dev;
- struct pci_bus *child_bus;
+ struct pci_bus *child;
int retval;
list_for_each_entry(dev, &bus->devices, bus_list) {
@@ -120,45 +151,29 @@ void pci_bus_add_devices(struct pci_bus *bus)
list_for_each_entry(dev, &bus->devices, bus_list) {
BUG_ON(!dev->is_added);
+ child = dev->subordinate;
/*
* If there is an unattached subordinate bus, attach
* it and then scan for unattached PCI devices.
*/
- if (dev->subordinate) {
- if (list_empty(&dev->subordinate->node)) {
- down_write(&pci_bus_sem);
- list_add_tail(&dev->subordinate->node,
- &dev->bus->children);
- up_write(&pci_bus_sem);
- }
- pci_bus_add_devices(dev->subordinate);
-
- /* register the bus with sysfs as the parent is now
- * properly registered. */
- child_bus = dev->subordinate;
- if (child_bus->is_added)
- continue;
- child_bus->dev.parent = child_bus->bridge;
- retval = device_register(&child_bus->dev);
- if (retval)
- dev_err(&dev->dev, "Error registering pci_bus,"
- " continuing...\n");
- else {
- child_bus->is_added = 1;
- retval = device_create_file(&child_bus->dev,
- &dev_attr_cpuaffinity);
- }
- if (retval)
- dev_err(&dev->dev, "Error creating cpuaffinity"
- " file, continuing...\n");
-
- retval = device_create_file(&child_bus->dev,
- &dev_attr_cpulistaffinity);
- if (retval)
- dev_err(&dev->dev,
- "Error creating cpulistaffinity"
- " file, continuing...\n");
+ if (!child)
+ continue;
+ if (list_empty(&child->node)) {
+ down_write(&pci_bus_sem);
+ list_add_tail(&child->node, &dev->bus->children);
+ up_write(&pci_bus_sem);
}
+ pci_bus_add_devices(child);
+
+ /*
+ * register the bus with sysfs as the parent is now
+ * properly registered.
+ */
+ if (child->is_added)
+ continue;
+ retval = pci_bus_add_child(child);
+ if (retval)
+ dev_err(&dev->dev, "Error adding bus, continuing\n");
}
}