netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep.

The new address list lock needs to handle the same device layering
issues that the _xmit_lock one does.

This integrates work done by Patrick McHardy.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index fccc250f95f5..532e4faa29f7 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -73,6 +73,7 @@ static const struct proto_ops nr_proto_ops;
  * separate class since they always nest.
  */
 static struct lock_class_key nr_netdev_xmit_lock_key;
+static struct lock_class_key nr_netdev_addr_lock_key;
 
 static void nr_set_lockdep_one(struct net_device *dev,
                                struct netdev_queue *txq,
@@ -83,6 +84,7 @@ static void nr_set_lockdep_one(struct net_device *dev,
 
 static void nr_set_lockdep_key(struct net_device *dev)
 {
+        lockdep_set_class(&dev->addr_list_lock, &nr_netdev_addr_lock_key);
         netdev_for_each_tx_queue(dev, nr_set_lockdep_one, NULL);
 }