From dec05074b1a322f5fbbe3f81bc438a75bfec3c34 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Sat, 10 Nov 2012 11:00:32 +0100 Subject: batman-adv: Initialize lockdep class keys for hashes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Different hashes have the same class key because they get initialised with the same one. For this reason lockdep can create false warning when they are used recursively. Re-initialise the key for each hash after the invocation to hash_new() to avoid this problem. Signed-off-by: Antonio Quartulli Tested-by: Linus Lüssing Signed-off-by: Marek Lindner --- net/batman-adv/translation-table.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'net/batman-adv/translation-table.c') diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 5f442328f2e6..c6fd0b760d3e 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -29,6 +29,10 @@ #include +/* hash class keys */ +static struct lock_class_key batadv_tt_local_hash_lock_class_key; +static struct lock_class_key batadv_tt_global_hash_lock_class_key; + static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client, struct batadv_orig_node *orig_node); static void batadv_tt_purge(struct work_struct *work); @@ -235,6 +239,9 @@ static int batadv_tt_local_init(struct batadv_priv *bat_priv) if (!bat_priv->tt.local_hash) return -ENOMEM; + batadv_hash_set_lock_class(bat_priv->tt.local_hash, + &batadv_tt_local_hash_lock_class_key); + return 0; } @@ -694,6 +701,9 @@ static int batadv_tt_global_init(struct batadv_priv *bat_priv) if (!bat_priv->tt.global_hash) return -ENOMEM; + batadv_hash_set_lock_class(bat_priv->tt.global_hash, + &batadv_tt_global_hash_lock_class_key); + return 0; } -- cgit v1.2.3