[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 <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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 @@
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 @@
free_netdev(dev);
goto fail;
}
+ lockdep_set_class(&dev->_xmit_lock, &rose_netdev_xmit_lock_key);
dev_rose[i] = dev;
}
