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__in_dev_get_rtnl() can use rtnl_dereference()
If caller holds RTNL, we dont need a memory barrier (smp_read_barrier_depends) included in rcu_dereference(). Just use rtnl_dereference() to properly document the assertions. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -222,7 +222,7 @@ static inline struct in_device *in_dev_get(const struct net_device *dev)
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static inline struct in_device *__in_dev_get_rtnl(const struct net_device *dev)
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{
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return rcu_dereference_check(dev->ip_ptr, lockdep_rtnl_is_held());
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return rtnl_dereference(dev->ip_ptr);
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}
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extern void in_dev_finish_destroy(struct in_device *idev);
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