centos man page for netdev_master_upper_dev_get_rcu

NETDEV_MASTER_UPPER_(9) 				      Network device support					   NETDEV_MASTER_UPPER_(9)

NAME
       netdev_master_upper_dev_get_rcu - Get master upper device

SYNOPSIS
       struct net_device * netdev_master_upper_dev_get_rcu(struct net_device * dev);

ARGUMENTS
       dev
	   device

DESCRIPTION
       Find a master upper device and return pointer to it or NULL in case it's not there. The caller must hold the RCU read lock.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   NETDEV_MASTER_UPPER_(9)