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Query: netdev_upper_dev_link

OS: centos

Section: 9

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NETDEV_UPPER_DEV_LIN(9) 				      Network device support					   NETDEV_UPPER_DEV_LIN(9)

NAME
       netdev_upper_dev_link - Add a link to the upper device

SYNOPSIS
       int netdev_upper_dev_link(struct net_device * dev, struct net_device * upper_dev);

ARGUMENTS
       dev
	   device

       upper_dev
	   new upper device

DESCRIPTION
       Adds a link to device which is upper to this one. The caller must hold the RTNL lock. On a failure a negative errno code is returned. On
       success the reference counts are adjusted and the function returns zero.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   NETDEV_UPPER_DEV_LIN(9)

centos man page for netdev_upper_dev_link