---
name: "netdev_master_upper_dev_get_rcu"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/netdev_master_upper_dev_get_rcu"
---

# netdev\_master\_upper\_dev\_get\_rcu(9)

Get master upper device

## NAME

netdev\_master\_upper\_dev\_get\_rcu - Get master upper device

## SYNOPSIS

**struct net\_device \* netdev\_master\_upper\_dev\_get\_rcu(struct net\_device \*** *dev***);**

## ARGUMENTS

*dev*

device

## DESCRIPTION

Find a master upper device and return pointer to it or NULL in case it's not there. The caller must hold the RCU read lock.

## COPYRIGHT