Kobject: change net/bridge to use kobject_create_and_add

The kobject in the bridge code is only used for registering with sysfs,
not for any lifespan rules.  This patch changes it to be only a pointer
and use the simpler api for this kind of thing.

Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

net/bridge/br_if.c

@@ -133,7 +133,7 @@ static void del_nbp(struct net_bridge_port *p)
 	struct net_bridge *br = p->br;
 	struct net_device *dev = p->dev;
 
-	sysfs_remove_link(&br->ifobj, dev->name);
+	sysfs_remove_link(br->ifobj, dev->name);
 
 	dev_set_promiscuity(dev, -1);
 

net/bridge/br_private.h

@@ -124,7 +124,7 @@ struct net_bridge
 	struct timer_list		tcn_timer;
 	struct timer_list		topology_change_timer;
 	struct timer_list		gc_timer;
-	struct kobject			ifobj;
+	struct kobject			*ifobj;
 };
 
 extern struct notifier_block br_device_notifier;

net/bridge/br_sysfs_br.c

@@ -426,16 +426,10 @@ int br_sysfs_addbr(struct net_device *dev)
 		goto out2;
 	}
 
-
-	kobject_set_name(&br->ifobj, SYSFS_BRIDGE_PORT_SUBDIR);
-	br->ifobj.ktype = NULL;
-	br->ifobj.kset = NULL;
-	br->ifobj.parent = brobj;
-
-	err = kobject_register(&br->ifobj);
-	if (err) {
+	br->ifobj = kobject_create_and_add(SYSFS_BRIDGE_PORT_SUBDIR, brobj);
+	if (!br->ifobj) {
 		pr_info("%s: can't add kobject (directory) %s/%s\n",
-			__FUNCTION__, dev->name, kobject_name(&br->ifobj));
+			__FUNCTION__, dev->name, SYSFS_BRIDGE_PORT_SUBDIR);
 		goto out3;
 	}
 	return 0;
@@ -453,7 +447,7 @@ void br_sysfs_delbr(struct net_device *dev)
 	struct kobject *kobj = &dev->dev.kobj;
 	struct net_bridge *br = netdev_priv(dev);
 
-	kobject_unregister(&br->ifobj);
+	kobject_unregister(br->ifobj);
 	sysfs_remove_bin_file(kobj, &bridge_forward);
 	sysfs_remove_group(kobj, &bridge_group);
 }

net/bridge/br_sysfs_if.c

@@ -229,7 +229,7 @@ int br_sysfs_addif(struct net_bridge_port *p)
 			goto out2;
 	}
 
-	err= sysfs_create_link(&br->ifobj, &p->kobj, p->dev->name);
+	err = sysfs_create_link(br->ifobj, &p->kobj, p->dev->name);
 out2:
 	return err;
 }