batman-adv: Split batadv_priv in sub-structures for features

The structure batadv_priv grows everytime a new feature is introduced. It gets
hard to find the parts of the struct that belongs to a specific feature. This
becomes even harder by the fact that not every feature uses a prefix in the
member name.

The variables for bridge loop avoidence, gateway handling, translation table
and visualization server are moved into separate structs that are included in
the bat_priv main struct.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index bc2b88b..d5edee7 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -721,7 +721,7 @@
 	 * been incremented yet. This flag will make me check all the incoming
 	 * packets for the correct destination.
 	 */
-	bat_priv->tt_poss_change = true;
+	bat_priv->tt.poss_change = true;
 
 	batadv_orig_node_free_ref(orig_node);
 out:
@@ -947,8 +947,8 @@
 	unicast_packet = (struct batadv_unicast_packet *)skb->data;
 
 	if (batadv_is_my_mac(unicast_packet->dest)) {
-		tt_poss_change = bat_priv->tt_poss_change;
-		curr_ttvn = (uint8_t)atomic_read(&bat_priv->ttvn);
+		tt_poss_change = bat_priv->tt.poss_change;
+		curr_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
 	} else {
 		orig_node = batadv_orig_hash_find(bat_priv,
 						  unicast_packet->dest);