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. It can change skb pointers.