Name

skb_pull_rcsum — pull skb and update receive checksum

Synopsis

unsigned char * skb_pull_rcsum (struct sk_buff * skb,
 unsigned int len);
 

Arguments

struct sk_buff * skb

buffer to update

unsigned int len

length of data pulled

Description

This function performs an skb_pull on the packet and updates the CHECKSUM_COMPLETE checksum. It should be used on receive path processing instead of skb_pull unless you know that the checksum difference is zero (e.g., a valid IP header) or you are setting ip_summed to CHECKSUM_NONE.