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 4.8.                 January 2017                   NETDEV_UPPER_DEV_LIN(9)