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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

April 2019 Kernel Hackers Manual 4.9.