1 files changed, 36 insertions, 110 deletions

diff --git a/drivers/staging/batman-adv/main.c b/drivers/staging/batman-adv/main.c
index ef7c20a..0587940 100644
--- a/drivers/staging/batman-adv/main.c
+++ b/drivers/staging/batman-adv/main.c
@@ -34,43 +34,14 @@
 #include "hash.h"
 
 struct list_head if_list;
-struct hlist_head forw_bat_list;
-struct hlist_head forw_bcast_list;
-struct hashtable_t *orig_hash;
-
-DEFINE_SPINLOCK(orig_hash_lock);
-DEFINE_SPINLOCK(forw_bat_list_lock);
-DEFINE_SPINLOCK(forw_bcast_list_lock);
-
-atomic_t bcast_queue_left;
-atomic_t batman_queue_left;
-
-int16_t num_hna;
-
-struct net_device *soft_device;
 
 unsigned char broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
-atomic_t module_state;
-
-static struct packet_type batman_adv_packet_type __read_mostly = {
-	.type = __constant_htons(ETH_P_BATMAN),
-	.func = batman_skb_recv,
-};
 
 struct workqueue_struct *bat_event_workqueue;
 
 static int __init batman_init(void)
 {
-	int retval;
-
 	INIT_LIST_HEAD(&if_list);
-	INIT_HLIST_HEAD(&forw_bat_list);
-	INIT_HLIST_HEAD(&forw_bcast_list);
-
-	atomic_set(&module_state, MODULE_INACTIVE);
-
-	atomic_set(&bcast_queue_left, BCAST_QUEUE_LEN);
-	atomic_set(&batman_queue_left, BATMAN_QUEUE_LEN);
 
 	/* the name should not be longer than 10 chars - see
 	 * http://lwn.net/Articles/23634/ */
@@ -82,126 +53,86 @@ static int __init batman_init(void)
 	bat_socket_init();
 	debugfs_init();
 
-	/* initialize layer 2 interface */
-	soft_device = alloc_netdev(sizeof(struct bat_priv) , "bat%d",
-				   interface_setup);
-
-	if (!soft_device) {
-		pr_err("Unable to allocate the batman interface\n");
-		goto end;
-	}
-
-	retval = register_netdev(soft_device);
-
-	if (retval < 0) {
-		pr_err("Unable to register the batman interface: %i\n", retval);
-		goto free_soft_device;
-	}
-
-	retval = sysfs_add_meshif(soft_device);
-
-	if (retval < 0)
-		goto unreg_soft_device;
-
-	retval = debugfs_add_meshif(soft_device);
-
-	if (retval < 0)
-		goto unreg_sysfs;
-
 	register_netdevice_notifier(&hard_if_notifier);
-	dev_add_pack(&batman_adv_packet_type);
 
 	pr_info("B.A.T.M.A.N. advanced %s%s (compatibility version %i) "
 		"loaded\n", SOURCE_VERSION, REVISION_VERSION_STR,
 		COMPAT_VERSION);
 
 	return 0;
-
-unreg_sysfs:
-	sysfs_del_meshif(soft_device);
-unreg_soft_device:
-	unregister_netdev(soft_device);
-	soft_device = NULL;
-	return -ENOMEM;
-
-free_soft_device:
-	free_netdev(soft_device);
-	soft_device = NULL;
-end:
-	return -ENOMEM;
 }
 
 static void __exit batman_exit(void)
 {
-	deactivate_module();
-
 	debugfs_destroy();
 	unregister_netdevice_notifier(&hard_if_notifier);
 	hardif_remove_interfaces();
 
-	if (soft_device) {
-		debugfs_del_meshif(soft_device);
-		sysfs_del_meshif(soft_device);
-		unregister_netdev(soft_device);
-		soft_device = NULL;
-	}
-
-	dev_remove_pack(&batman_adv_packet_type);
-
+	flush_workqueue(bat_event_workqueue);
 	destroy_workqueue(bat_event_workqueue);
 	bat_event_workqueue = NULL;
+
+	rcu_barrier();
 }
 
-/* activates the module, starts timer ... */
-void activate_module(void)
+int mesh_init(struct net_device *soft_iface)
 {
-	if (originator_init() < 1)
+	struct bat_priv *bat_priv = netdev_priv(soft_iface);
+
+	spin_lock_init(&bat_priv->orig_hash_lock);
+	spin_lock_init(&bat_priv->forw_bat_list_lock);
+	spin_lock_init(&bat_priv->forw_bcast_list_lock);
+	spin_lock_init(&bat_priv->hna_lhash_lock);
+	spin_lock_init(&bat_priv->hna_ghash_lock);
+	spin_lock_init(&bat_priv->vis_hash_lock);
+	spin_lock_init(&bat_priv->vis_list_lock);
+
+	INIT_HLIST_HEAD(&bat_priv->forw_bat_list);
+	INIT_HLIST_HEAD(&bat_priv->forw_bcast_list);
+
+	if (originator_init(bat_priv) < 1)
 		goto err;
 
-	if (hna_local_init() < 1)
+	if (hna_local_init(bat_priv) < 1)
 		goto err;
 
-	if (hna_global_init() < 1)
+	if (hna_global_init(bat_priv) < 1)
 		goto err;
 
-	hna_local_add(soft_device->dev_addr);
+	hna_local_add(soft_iface, soft_iface->dev_addr);
 
-	if (vis_init() < 1)
+	if (vis_init(bat_priv) < 1)
 		goto err;
 
-	update_min_mtu();
-	atomic_set(&module_state, MODULE_ACTIVE);
+	atomic_set(&bat_priv->mesh_state, MESH_ACTIVE);
 	goto end;
 
 err:
 	pr_err("Unable to allocate memory for mesh information structures: "
 	       "out of mem ?\n");
-	deactivate_module();
+	mesh_free(soft_iface);
+	return -1;
+
 end:
-	return;
+	return 0;
 }
 
-/* shuts down the whole module.*/
-void deactivate_module(void)
+void mesh_free(struct net_device *soft_iface)
 {
-	atomic_set(&module_state, MODULE_DEACTIVATING);
+	struct bat_priv *bat_priv = netdev_priv(soft_iface);
 
-	purge_outstanding_packets(NULL);
-	flush_workqueue(bat_event_workqueue);
+	atomic_set(&bat_priv->mesh_state, MESH_DEACTIVATING);
 
-	vis_quit();
+	purge_outstanding_packets(bat_priv, NULL);
 
-	/* TODO: unregister BATMAN pack */
+	vis_quit(bat_priv);
 
-	originator_free();
+	originator_free(bat_priv);
 
-	hna_local_free();
-	hna_global_free();
+	hna_local_free(bat_priv);
+	hna_global_free(bat_priv);
 
-	synchronize_net();
-
-	synchronize_rcu();
-	atomic_set(&module_state, MODULE_INACTIVE);
+	atomic_set(&bat_priv->mesh_state, MESH_INACTIVE);
 }
 
 void inc_module_count(void)
@@ -214,11 +145,6 @@ void dec_module_count(void)
 	module_put(THIS_MODULE);
 }
 
-int addr_to_string(char *buff, uint8_t *addr)
-{
-	return sprintf(buff, "%pM", addr);
-}
-
 /* returns 1 if they are the same originator */
 
 int compare_orig(void *data1, void *data2)