'\" t
.\"     Title: skb_push_rcsum
.\"    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: Linux Networking
.\"    Source: Kernel Hackers Manual 4.12.2
.\"  Language: English
.\"
.TH "SKB_PUSH_RCSUM" "9" "July 2017" "Kernel Hackers Manual 4\&.12\&" "Linux Networking"
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.SH "NAME"
skb_push_rcsum \- push skb and update receive checksum
.SH "SYNOPSIS"
.HP \w'unsigned\ char\ *\ skb_push_rcsum('u
.BI "unsigned char * skb_push_rcsum(struct\ sk_buff\ *\ " "skb" ", unsigned\ int\ " "len" ");"
.SH "ARGUMENTS"
.PP
\fIstruct sk_buff * skb\fR
.RS 4
buffer to update
.RE
.PP
\fIunsigned int len\fR
.RS 4
length of data pulled
.RE
.SH "DESCRIPTION"
.PP
This function performs an skb_push on the packet and updates the CHECKSUM_COMPLETE checksum\&. It should be used on receive path processing instead of skb_push unless you know that the checksum difference is zero (e\&.g\&., a valid IP header) or you are setting ip_summed to CHECKSUM_NONE\&.
.SH "COPYRIGHT"
.br