batman-adv: Prefix bat_sysfs non-static functions with batadv_

batman-adv can be compiled as part of the kernel instead of an module. In that
case the linker will see all non-static symbols of batman-adv and all other
non-static symbols of the kernel. This could lead to symbol collisions. A
prefix for the batman-adv symbols that defines their private namespace avoids
such a problem.
Reported-by: David Miller <davem@davemloft.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

net/batman-adv/bat_sysfs.c

@@ -469,7 +469,7 @@ static struct bat_attribute *mesh_attrs[] = {
 	NULL,
 };
 
-int sysfs_add_meshif(struct net_device *dev)
+int batadv_sysfs_add_meshif(struct net_device *dev)
 {
 	struct kobject *batif_kobject = &dev->dev.kobj;
 	struct bat_priv *bat_priv = netdev_priv(dev);
@@ -507,7 +507,7 @@ int sysfs_add_meshif(struct net_device *dev)
 	return -ENOMEM;
 }
 
-void sysfs_del_meshif(struct net_device *dev)
+void batadv_sysfs_del_meshif(struct net_device *dev)
 {
 	struct bat_priv *bat_priv = netdev_priv(dev);
 	struct bat_attribute **bat_attr;
@@ -637,7 +637,7 @@ static struct bat_attribute *batman_attrs[] = {
 	NULL,
 };
 
-int sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev)
+int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev)
 {
 	struct kobject *hardif_kobject = &dev->dev.kobj;
 	struct bat_attribute **bat_attr;
@@ -671,14 +671,14 @@ int sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev)
 	return -ENOMEM;
 }
 
-void sysfs_del_hardif(struct kobject **hardif_obj)
+void batadv_sysfs_del_hardif(struct kobject **hardif_obj)
 {
 	kobject_put(*hardif_obj);
 	*hardif_obj = NULL;
 }
 
-int throw_uevent(struct bat_priv *bat_priv, enum uev_type type,
-		 enum uev_action action, const char *data)
+int batadv_throw_uevent(struct bat_priv *bat_priv, enum uev_type type,
+			enum uev_action action, const char *data)
 {
 	int ret = -ENOMEM;
 	struct hard_iface *primary_if = NULL;

net/batman-adv/bat_sysfs.h

@@ -34,11 +34,12 @@ struct bat_attribute {
 			 char *buf, size_t count);
 };
 
-int sysfs_add_meshif(struct net_device *dev);
-void sysfs_del_meshif(struct net_device *dev);
-int sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev);
-void sysfs_del_hardif(struct kobject **hardif_obj);
-int throw_uevent(struct bat_priv *bat_priv, enum uev_type type,
-		 enum uev_action action, const char *data);
+int batadv_sysfs_add_meshif(struct net_device *dev);
+void batadv_sysfs_del_meshif(struct net_device *dev);
+int batadv_sysfs_add_hardif(struct kobject **hardif_obj,
+			    struct net_device *dev);
+void batadv_sysfs_del_hardif(struct kobject **hardif_obj);
+int batadv_throw_uevent(struct bat_priv *bat_priv, enum uev_type type,
+			enum uev_action action, const char *data);
 
 #endif /* _NET_BATMAN_ADV_SYSFS_H_ */

net/batman-adv/gateway_client.c

@@ -220,19 +220,19 @@ void gw_election(struct bat_priv *bat_priv)
 	if ((curr_gw) && (!next_gw)) {
 		bat_dbg(DBG_BATMAN, bat_priv,
 			"Removing selected gateway - no gateway in range\n");
-		throw_uevent(bat_priv, UEV_GW, UEV_DEL, NULL);
+		batadv_throw_uevent(bat_priv, UEV_GW, UEV_DEL, NULL);
 	} else if ((!curr_gw) && (next_gw)) {
 		bat_dbg(DBG_BATMAN, bat_priv,
 			"Adding route to gateway %pM (gw_flags: %i, tq: %i)\n",
 			next_gw->orig_node->orig, next_gw->orig_node->gw_flags,
 			router->tq_avg);
-		throw_uevent(bat_priv, UEV_GW, UEV_ADD, gw_addr);
+		batadv_throw_uevent(bat_priv, UEV_GW, UEV_ADD, gw_addr);
 	} else {
 		bat_dbg(DBG_BATMAN, bat_priv,
 			"Changing route to gateway %pM (gw_flags: %i, tq: %i)\n",
 			next_gw->orig_node->orig, next_gw->orig_node->gw_flags,
 			router->tq_avg);
-		throw_uevent(bat_priv, UEV_GW, UEV_CHANGE, gw_addr);
+		batadv_throw_uevent(bat_priv, UEV_GW, UEV_CHANGE, gw_addr);
 	}
 
 	gw_select(bat_priv, next_gw);

net/batman-adv/hard-interface.c

@@ -423,7 +423,7 @@ static struct hard_iface *hardif_add_interface(struct net_device *net_dev)
 	if (!hard_iface)
 		goto release_dev;
 
-	ret = sysfs_add_hardif(&hard_iface->hardif_obj, net_dev);
+	ret = batadv_sysfs_add_hardif(&hard_iface->hardif_obj, net_dev);
 	if (ret)
 		goto free_if;
 
@@ -467,7 +467,7 @@ static void hardif_remove_interface(struct hard_iface *hard_iface)
 		return;
 
 	hard_iface->if_status = IF_TO_BE_REMOVED;
-	sysfs_del_hardif(&hard_iface->hardif_obj);
+	batadv_sysfs_del_hardif(&hard_iface->hardif_obj);
 	hardif_free_ref(hard_iface);
 }
 

net/batman-adv/soft-interface.c

@@ -415,7 +415,7 @@ struct net_device *softif_create(const char *name)
 	if (ret < 0)
 		goto free_bat_counters;
 
-	ret = sysfs_add_meshif(soft_iface);
+	ret = batadv_sysfs_add_meshif(soft_iface);
 	if (ret < 0)
 		goto free_bat_counters;
 
@@ -432,7 +432,7 @@ struct net_device *softif_create(const char *name)
 unreg_debugfs:
 	batadv_debugfs_del_meshif(soft_iface);
 unreg_sysfs:
-	sysfs_del_meshif(soft_iface);
+	batadv_sysfs_del_meshif(soft_iface);
 free_bat_counters:
 	free_percpu(bat_priv->bat_counters);
 unreg_soft_iface:
@@ -448,7 +448,7 @@ struct net_device *softif_create(const char *name)
 void softif_destroy(struct net_device *soft_iface)
 {
 	batadv_debugfs_del_meshif(soft_iface);
-	sysfs_del_meshif(soft_iface);
+	batadv_sysfs_del_meshif(soft_iface);
 	mesh_free(soft_iface);
 	unregister_netdevice(soft_iface);
 }