centos man page for pskb_trim_rcsum

PSKB_TRIM_RCSUM(9)						 Linux Networking						PSKB_TRIM_RCSUM(9)

NAME
       pskb_trim_rcsum - trim received skb and update checksum

SYNOPSIS
       int pskb_trim_rcsum(struct sk_buff * skb, unsigned int len);

ARGUMENTS
       skb
	   buffer to trim

       len
	   new length

DESCRIPTION
       This is exactly the same as pskb_trim except that it ensures the checksum of received packets are still valid after the operation.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							PSKB_TRIM_RCSUM(9)