---
name: "skb_push_rcsum"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/skb_push_rcsum"
---

# skb\_push\_rcsum(9)

push skb and update receive checksum

## NAME

skb\_push\_rcsum - push skb and update receive checksum

## SYNOPSIS

**unsigned char \* skb\_push\_rcsum(struct sk\_buff \*** *skb***, unsigned int** *len***);**

## ARGUMENTS

*skb*

buffer to update

*len*

length of data pulled

## DESCRIPTION

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.

## COPYRIGHT