'\" t
.\"     Title: dev_get_by_index_rcu
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: July 2017
.\"    Manual: Network device support
.\"    Source: Kernel Hackers Manual 4.12.2
.\"  Language: English
.\"
.TH "DEV_GET_BY_INDEX_RCU" "9" "July 2017" "Kernel Hackers Manual 4\&.12\&" "Network device support"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
dev_get_by_index_rcu \- find a device by its ifindex
.SH "SYNOPSIS"
.HP \w'struct\ net_device\ *\ dev_get_by_index_rcu('u
.BI "struct net_device * dev_get_by_index_rcu(struct\ net\ *\ " "net" ", int\ " "ifindex" ");"
.SH "ARGUMENTS"
.PP
\fIstruct net * net\fR
.RS 4
the applicable net namespace
.RE
.PP
\fIint ifindex\fR
.RS 4
index of device
.RE
.SH "DESCRIPTION"
.PP
Search for an interface by index\&. Returns
\fBNULL\fR
if the device is not found or a pointer to the device\&. The device has not had its reference counter increased so the caller must be careful about locking\&. The caller must hold RCU lock\&.
.SH "COPYRIGHT"
.br