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.

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