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[NETROM] lockdep: fix false positive
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. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -65,6 +65,14 @@ static DEFINE_SPINLOCK(nr_list_lock);
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static const struct proto_ops nr_proto_ops;
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/*
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* NETROM network devices are virtual network devices encapsulating NETROM
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* frames into AX.25 which will be sent through an AX.25 device, so form a
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* special "super class" of normal net devices; split their locks off into a
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* separate class since they always nest.
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*/
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static struct lock_class_key nr_netdev_xmit_lock_key;
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/*
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* Socket removal during an interrupt is now safe.
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*/
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@ -1405,6 +1413,7 @@ static int __init nr_proto_init(void)
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free_netdev(dev);
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goto fail;
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}
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lockdep_set_class(&dev->_xmit_lock, &nr_netdev_xmit_lock_key);
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dev_nr[i] = dev;
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}
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