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 4.8.                 January 2017                     SKB_POSTPULL_RCSUM(9)