From: Ralf Baechle Date: Wed, 12 Jul 2006 20:25:56 +0000 (-0700) Subject: [ROSE] lockdep: fix false positive X-Git-Tag: v3.12-rc1~34607^2~8 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b1d21ca83c9139e7889a754934bcdd7071157560;p=kernel%2Fkernel-generic.git [ROSE] lockdep: fix false positive 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. Signed-off-by: Ralf Baechle Signed-off-by: David S. Miller --- diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index c115295..08a5428 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -67,6 +67,14 @@ static 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; + +/* * Convert a ROSE address into text. */ const char *rose2asc(const rose_address *addr) @@ -1515,6 +1523,7 @@ static int __init rose_proto_init(void) free_netdev(dev); goto fail; } + lockdep_set_class(&dev->_xmit_lock, &rose_netdev_xmit_lock_key); dev_rose[i] = dev; }