---
name: "skb_headroom"
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_headroom"
---

# skb\_headroom(9)

bytes at buffer head

## NAME

skb\_headroom - bytes at buffer head

## SYNOPSIS

**unsigned int skb\_headroom(const struct sk\_buff \*** *skb***);**

## ARGUMENTS

*skb*

buffer to check

## DESCRIPTION

Return the number of bytes of free space at the head of an sk\_buff.

## COPYRIGHT