'\" t
.\"     Title: netdev_alloc_skb
.\"    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: Linux Networking
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "NETDEV_ALLOC_SKB" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Linux Networking"
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.SH "NAME"
netdev_alloc_skb \- allocate an skbuff for rx on a specific device
.SH "SYNOPSIS"
.HP \w'struct\ sk_buff\ *\ netdev_alloc_skb('u
.BI "struct sk_buff * netdev_alloc_skb(struct\ net_device\ *\ " "dev" ", unsigned\ int\ " "length" ");"
.SH "ARGUMENTS"
.PP
\fIdev\fR
.RS 4
network device to receive on
.RE
.PP
\fIlength\fR
.RS 4
length to allocate
.RE
.SH "DESCRIPTION"
.PP
Allocate a new
sk_buff
and assign it a usage count of one\&. The buffer has unspecified headroom built in\&. Users should allocate the headroom they think they need without accounting for the built in space\&. The built in space is used for optimisations\&.
.PP
\fBNULL\fR
is returned if there is no free memory\&. Although this function allocates memory it can be called from an interrupt\&.
.SH "COPYRIGHT"
.br