SKB_POSTPULL_RCSUM(9) Linux Networking SKB_POSTPULL_RCSUM(9)
NAME
skb_postpull_rcsum - update checksum for received skb after pull
SYNOPSIS
void skb_postpull_rcsum(struct sk_buff * skb, const void * start, unsigned int len);
ARGUMENTS
skb
buffer to update
start
start of data before pull
len
length of data pulled
DESCRIPTION
After doing a pull on a received packet, you need to call this to update the CHECKSUM_COMPLETE checksum, or set ip_summed to CHECKSUM_NONE
so that it can be recomputed from scratch.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SKB_POSTPULL_RCSUM(9)
