SKB_PULL_RCSUM(9)                        Linux Networking                       SKB_PULL_RCSUM(9)



NAME
       skb_pull_rcsum - pull skb and update receive checksum

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

ARGUMENTS
       skb
           buffer to update

       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.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                         SKB_PULL_RCSUM(9)