updev            4257 include/linux/netdevice.h #define netdev_for_each_upper_dev_rcu(dev, updev, iter) \
updev            4259 include/linux/netdevice.h 	     updev = netdev_upper_get_next_dev_rcu(dev, &(iter)); \
updev            4260 include/linux/netdevice.h 	     updev; \
updev            4261 include/linux/netdevice.h 	     updev = netdev_upper_get_next_dev_rcu(dev, &(iter)))