batman-adv: Remove explicit casts cast from void* for store

It is not necessary to cast a void* to the pointer type when we just
store it and don't want to do pointer arithmetic before the actual
assignment.
Signed-off-by: Sven Eckelmann <sven@narfation.org>

net/batman-adv/bitarray.c

@@ -130,7 +130,7 @@ static void bit_reset_window(unsigned long *seq_bits)
 char bit_get_packet(void *priv, unsigned long *seq_bits,
 		    int32_t seq_num_diff, int8_t set_mark)
 {
-	struct bat_priv *bat_priv = (struct bat_priv *)priv;
+	struct bat_priv *bat_priv = priv;
 
 	/* sequence number is slightly older. We already got a sequence number
 	 * higher than this one, so we just mark it. */

net/batman-adv/hard-interface.c

@@ -523,7 +523,7 @@ void hardif_remove_interfaces(void)
 static int hard_if_event(struct notifier_block *this,
 			 unsigned long event, void *ptr)
 {
-	struct net_device *net_dev = (struct net_device *)ptr;
+	struct net_device *net_dev = ptr;
 	struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
 	struct hard_iface *primary_if = NULL;
 	struct bat_priv *bat_priv;

net/batman-adv/translation-table.c

@@ -313,7 +313,7 @@ int tt_local_seq_print_text(struct seq_file *seq, void *offset)
 
 static void _tt_local_del(struct hlist_node *node, void *arg)
 {
-	struct bat_priv *bat_priv = (struct bat_priv *)arg;
+	struct bat_priv *bat_priv = arg;
 	void *data = container_of(node, struct tt_local_entry, hash_entry);
 
 	kfree(data);