diff options
Diffstat (limited to 'net/rose/af_rose.c')
| -rw-r--r-- | net/rose/af_rose.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index 1e8eeb044b07..e7a872207b46 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -65,6 +65,26 @@ static const struct proto_ops rose_proto_ops; ax25_address rose_callsign; /* + * ROSE network devices are virtual network devices encapsulating ROSE + * 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 rose_netdev_xmit_lock_key; + +static void rose_set_lockdep_one(struct net_device *dev, + struct netdev_queue *txq, + void *_unused) +{ + lockdep_set_class(&txq->_xmit_lock, &rose_netdev_xmit_lock_key); +} + +static void rose_set_lockdep_key(struct net_device *dev) +{ + netdev_for_each_tx_queue(dev, rose_set_lockdep_one, NULL); +} + +/* * Convert a ROSE address into text. */ char *rose2asc(char *buf, const rose_address *addr) @@ -1511,6 +1531,7 @@ static int __init rose_proto_init(void) free_netdev(dev); goto fail; } + rose_set_lockdep_key(dev); dev_rose[i] = dev; } |