batman-adv: Add lockdep_asserts for documented external locks

Some functions already have documentation about locks they require inside
their kerneldoc header. These can be directly tested during runtime using
the lockdep asserts.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 79cee7b..4228b10 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -3271,6 +3271,8 @@
  */
 static void batadv_tt_local_commit_changes_nolock(struct batadv_priv *bat_priv)
 {
+	lockdep_assert_held(&bat_priv->tt.commit_lock);
+
 	/* Update multicast addresses in local translation table */
 	batadv_mcast_mla_update(bat_priv);