---
name: "skb_push"
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"
---

# skb\_push(9)

add data to the start of a buffer

## NAME

skb\_push - add data to the start of a buffer

## SYNOPSIS

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

## ARGUMENTS

*skb*

buffer to use

*len*

amount of data to add

## DESCRIPTION

This function extends the used data area of the buffer at the buffer start. If this would exceed the total buffer headroom the kernel will panic. A pointer to the first byte of the extra data is returned.

## COPYRIGHT