'\" t
.\"     Title: skb_postpull_rcsum
.\"    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 "SKB_POSTPULL_RCSUM" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Linux Networking"
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.SH "NAME"
skb_postpull_rcsum \- update checksum for received skb after pull
.SH "SYNOPSIS"
.HP \w'void\ skb_postpull_rcsum('u
.BI "void skb_postpull_rcsum(struct\ sk_buff\ *\ " "skb" ", const\ void\ *\ " "start" ", unsigned\ int\ " "len" ");"
.SH "ARGUMENTS"
.PP
\fIskb\fR
.RS 4
buffer to update
.RE
.PP
\fIstart\fR
.RS 4
start of data before pull
.RE
.PP
\fIlen\fR
.RS 4
length of data pulled
.RE
.SH "DESCRIPTION"
.PP
After doing a pull on a received packet, you need to call this to update the CHECKSUM_COMPLETE checksum, or set ip_summed to CHECKSUM_NONE so that it can be recomputed from scratch\&.
.SH "COPYRIGHT"
.br