diff options
Diffstat (limited to 'net/netrom/af_netrom.c')
| -rw-r--r-- | net/netrom/af_netrom.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index ecc796878f3..1d50f801f18 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -66,6 +66,14 @@ static DEFINE_SPINLOCK(nr_list_lock); static const struct proto_ops nr_proto_ops; /* + * NETROM network devices are virtual network devices encapsulating NETROM + * frames into AX.25 which will be sent through an AX.25 device, so form a + * special "super class" of normal net devices; split their locks off into a + * separate class since they always nest. + */ +static struct lock_class_key nr_netdev_xmit_lock_key; + +/* * Socket removal during an interrupt is now safe. */ static void nr_remove_socket(struct sock *sk) @@ -986,18 +994,18 @@ int nr_rx_frame(struct sk_buff *skb, struct net_device *dev) nr_make->vl = 0; nr_make->state = NR_STATE_3; sk_acceptq_added(sk); - - nr_insert_socket(make); - skb_queue_head(&sk->sk_receive_queue, skb); - nr_start_heartbeat(make); - nr_start_idletimer(make); - if (!sock_flag(sk, SOCK_DEAD)) sk->sk_data_ready(sk, skb->len); bh_unlock_sock(sk); + + nr_insert_socket(make); + + nr_start_heartbeat(make); + nr_start_idletimer(make); + return 1; } @@ -1405,6 +1413,7 @@ static int __init nr_proto_init(void) free_netdev(dev); goto fail; } + lockdep_set_class(&dev->_xmit_lock, &nr_netdev_xmit_lock_key); dev_nr[i] = dev; } |