1NETDEV_UPPER_DEV_LIN(9)     Network device support     NETDEV_UPPER_DEV_LIN(9)
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NAME

6       netdev_upper_dev_link - Add a link to the upper device
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SYNOPSIS

9       int netdev_upper_dev_link(struct net_device * dev,
10                                 struct net_device * upper_dev);
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ARGUMENTS

13       dev
14           device
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16       upper_dev
17           new upper device
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DESCRIPTION

20       Adds a link to device which is upper to this one. The caller must hold
21       the RTNL lock. On a failure a negative errno code is returned. On
22       success the reference counts are adjusted and the function returns
23       zero.
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26Kernel Hackers Manual 3.10         June 2019           NETDEV_UPPER_DEV_LIN(9)
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