netdev_has_upper_dev (9) Linux Manual Page
netdev_has_upper_dev – Check if device is linked to an upper device
Synopsis
- bool netdev_has_upper_dev(struct net_device
* dev, struct net_device* upper_dev);
Arguments
dev
-
- device
upper_dev
- upper device to check
Description
Find out if a device is linked to specified upper device and return true in case it is. Note that this checks only immediate upper device, not through a complete stack of devices. The caller must hold the RTNL lock.