batman-adv: Prefix hash 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/bridge_loop_avoidance.c

@@ -1166,8 +1166,8 @@ int batadv_bla_init(struct bat_priv *bat_priv)
 	if (bat_priv->claim_hash)
 		return 0;
 
-	bat_priv->claim_hash = hash_new(128);
-	bat_priv->backbone_hash = hash_new(32);
+	bat_priv->claim_hash = batadv_hash_new(128);
+	bat_priv->backbone_hash = batadv_hash_new(32);
 
 	if (!bat_priv->claim_hash || !bat_priv->backbone_hash)
 		return -ENOMEM;
@@ -1348,12 +1348,12 @@ void batadv_bla_free(struct bat_priv *bat_priv)
 
 	if (bat_priv->claim_hash) {
 		bla_purge_claims(bat_priv, primary_if, 1);
-		hash_destroy(bat_priv->claim_hash);
+		batadv_hash_destroy(bat_priv->claim_hash);
 		bat_priv->claim_hash = NULL;
 	}
 	if (bat_priv->backbone_hash) {
 		bla_purge_backbone_gw(bat_priv, 1);
-		hash_destroy(bat_priv->backbone_hash);
+		batadv_hash_destroy(bat_priv->backbone_hash);
 		bat_priv->backbone_hash = NULL;
 	}
 	if (primary_if)

net/batman-adv/hash.c

@@ -34,7 +34,7 @@ static void hash_init(struct hashtable_t *hash)
 }
 
 /* free only the hashtable and the hash itself. */
-void hash_destroy(struct hashtable_t *hash)
+void batadv_hash_destroy(struct hashtable_t *hash)
 {
 	kfree(hash->list_locks);
 	kfree(hash->table);
@@ -42,7 +42,7 @@ void hash_destroy(struct hashtable_t *hash)
 }
 
 /* allocates and clears the hash */
-struct hashtable_t *hash_new(uint32_t size)
+struct hashtable_t *batadv_hash_new(uint32_t size)
 {
 	struct hashtable_t *hash;
 

net/batman-adv/hash.h

@@ -43,14 +43,14 @@ struct hashtable_t {
 };
 
 /* allocates and clears the hash */
-struct hashtable_t *hash_new(uint32_t size);
+struct hashtable_t *batadv_hash_new(uint32_t size);
 
 /* set class key for all locks */
 void batadv_hash_set_lock_class(struct hashtable_t *hash,
 				struct lock_class_key *key);
 
 /* free only the hashtable and the hash itself. */
-void hash_destroy(struct hashtable_t *hash);
+void batadv_hash_destroy(struct hashtable_t *hash);
 
 /* remove the hash structure. if hashdata_free_cb != NULL, this function will be
  * called to remove the elements inside of the hash.  if you don't remove the
@@ -77,7 +77,7 @@ static inline void hash_delete(struct hashtable_t *hash,
 		spin_unlock_bh(list_lock);
 	}
 
-	hash_destroy(hash);
+	batadv_hash_destroy(hash);
 }
 
 /**

net/batman-adv/originator.c

@@ -52,7 +52,7 @@ int originator_init(struct bat_priv *bat_priv)
 	if (bat_priv->orig_hash)
 		return 0;
 
-	bat_priv->orig_hash = hash_new(1024);
+	bat_priv->orig_hash = batadv_hash_new(1024);
 
 	if (!bat_priv->orig_hash)
 		goto err;
@@ -184,7 +184,7 @@ void originator_free(struct bat_priv *bat_priv)
 		spin_unlock_bh(list_lock);
 	}
 
-	hash_destroy(hash);
+	batadv_hash_destroy(hash);
 }
 
 /* this function finds or creates an originator entry for the given

net/batman-adv/translation-table.c

@@ -183,7 +183,7 @@ static int tt_local_init(struct bat_priv *bat_priv)
 	if (bat_priv->tt_local_hash)
 		return 0;
 
-	bat_priv->tt_local_hash = hash_new(1024);
+	bat_priv->tt_local_hash = batadv_hash_new(1024);
 
 	if (!bat_priv->tt_local_hash)
 		return -ENOMEM;
@@ -531,7 +531,7 @@ static void tt_local_table_free(struct bat_priv *bat_priv)
 		spin_unlock_bh(list_lock);
 	}
 
-	hash_destroy(hash);
+	batadv_hash_destroy(hash);
 
 	bat_priv->tt_local_hash = NULL;
 }
@@ -541,7 +541,7 @@ static int tt_global_init(struct bat_priv *bat_priv)
 	if (bat_priv->tt_global_hash)
 		return 0;
 
-	bat_priv->tt_global_hash = hash_new(1024);
+	bat_priv->tt_global_hash = batadv_hash_new(1024);
 
 	if (!bat_priv->tt_global_hash)
 		return -ENOMEM;
@@ -1031,7 +1031,7 @@ static void tt_global_table_free(struct bat_priv *bat_priv)
 		spin_unlock_bh(list_lock);
 	}
 
-	hash_destroy(hash);
+	batadv_hash_destroy(hash);
 
 	bat_priv->tt_global_hash = NULL;
 }

net/batman-adv/vis.c

@@ -889,7 +889,7 @@ int vis_init(struct bat_priv *bat_priv)
 
 	spin_lock_bh(&bat_priv->vis_hash_lock);
 
-	bat_priv->vis_hash = hash_new(256);
+	bat_priv->vis_hash = batadv_hash_new(256);
 	if (!bat_priv->vis_hash) {
 		pr_err("Can't initialize vis_hash\n");
 		goto err;