'\" t
.\"     Title: netdev_master_upper_dev_get_rcu
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Network device support
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "NETDEV_MASTER_UPPER_" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Network device support"
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.SH "NAME"
netdev_master_upper_dev_get_rcu \- Get master upper device
.SH "SYNOPSIS"
.HP \w'struct\ net_device\ *\ netdev_master_upper_dev_get_rcu('u
.BI "struct net_device * netdev_master_upper_dev_get_rcu(struct\ net_device\ *\ " "dev" ");"
.SH "ARGUMENTS"
.PP
\fIdev\fR
.RS 4
device
.RE
.SH "DESCRIPTION"
.PP
Find a master upper device and return pointer to it or NULL in case it\*(Aqs not there\&. The caller must hold the RCU read lock\&.
.SH "COPYRIGHT"
.br