SKB_POSTPULL_RCSUM(9) Linux Networking SKB_POSTPULL_RCSUM(9)NAMEskb_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.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 SKB_POSTPULL_RCSUM(9)