Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / drivers / base / bus.c

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 76656ac..2e954d0 100644 (file)
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -8,7 +8,6 @@
  *
  */
 
-#include <linux/config.h>
 #include <linux/device.h>
 #include <linux/module.h>
 #include <linux/errno.h>
@@ -130,7 +129,7 @@ static struct kobj_type ktype_bus = {
 
 };
 
-decl_subsys(bus, &ktype_bus, NULL);
+static decl_subsys(bus, &ktype_bus, NULL);
 
 
 #ifdef CONFIG_HOTPLUG
@@ -362,8 +361,7 @@ static void device_remove_attrs(struct bus_type * bus, struct device * dev)
  *     @dev:   device being added
  *
  *     - Add the device to its bus's list of devices.
- *     - Try to attach to driver.
- *     - Create link to device's physical location.
+ *     - Create link to device's bus.
  */
 int bus_add_device(struct device * dev)
 {
@@ -372,17 +370,32 @@ int bus_add_device(struct device * dev)
 
        if (bus) {
                pr_debug("bus %s: add device %s\n", bus->name, dev->bus_id);
-               device_attach(dev);
-               klist_add_tail(&dev->knode_bus, &bus->klist_devices);
                error = device_add_attrs(bus, dev);
                if (!error) {
                        sysfs_create_link(&bus->devices.kobj, &dev->kobj, dev->bus_id);
+                       sysfs_create_link(&dev->kobj, &dev->bus->subsys.kset.kobj, "subsystem");
                        sysfs_create_link(&dev->kobj, &dev->bus->subsys.kset.kobj, "bus");
                }
        }
        return error;
 }
 
+/**
+ *     bus_attach_device - add device to bus
+ *     @dev:   device tried to attach to a driver
+ *
+ *     - Try to attach to driver.
+ */
+void bus_attach_device(struct device * dev)
+{
+       struct bus_type * bus = dev->bus;
+
+       if (bus) {
+               device_attach(dev);
+               klist_add_tail(&dev->knode_bus, &bus->klist_devices);
+       }
+}
+
 /**
  *     bus_remove_device - remove device from bus
  *     @dev:   device to be removed
@@ -395,6 +408,7 @@ int bus_add_device(struct device * dev)
 void bus_remove_device(struct device * dev)
 {
        if (dev->bus) {
+               sysfs_remove_link(&dev->kobj, "subsystem");
                sysfs_remove_link(&dev->kobj, "bus");
                sysfs_remove_link(&dev->bus->devices.kobj, dev->bus_id);
                device_remove_attrs(dev->bus, dev);
@@ -584,12 +598,13 @@ void put_bus(struct bus_type * bus)
  *
  *     Note that kset_find_obj increments bus' reference count.
  */
-
+#if 0
 struct bus_type * find_bus(char * name)
 {
        struct kobject * k = kset_find_obj(&bus_subsys.kset, name);
        return k ? to_bus(k) : NULL;
 }
+#endif  /*  0  */
 
 
 /**
@@ -732,14 +747,9 @@ EXPORT_SYMBOL_GPL(bus_for_each_dev);
 EXPORT_SYMBOL_GPL(bus_find_device);
 EXPORT_SYMBOL_GPL(bus_for_each_drv);
 
-EXPORT_SYMBOL_GPL(bus_add_device);
-EXPORT_SYMBOL_GPL(bus_remove_device);
 EXPORT_SYMBOL_GPL(bus_register);
 EXPORT_SYMBOL_GPL(bus_unregister);
 EXPORT_SYMBOL_GPL(bus_rescan_devices);
-EXPORT_SYMBOL_GPL(get_bus);
-EXPORT_SYMBOL_GPL(put_bus);
-EXPORT_SYMBOL_GPL(find_bus);
 
 EXPORT_SYMBOL_GPL(bus_create_file);
 EXPORT_SYMBOL_GPL(bus_remove_file);