skb_push_rcsum (9) Linux Manual Page
skb_push_rcsum – push skb and update receive checksum
Synopsis
unsigned char *skb_push_rcsum(struct sk_buff *skb, unsigned int len);Arguments
skb
-
- buffer to update
len
- length of data pulled
Description
This function performs an skb_push on the packet and updates the CHECKSUM_COMPLETE checksum. It should be used on receive path processing instead of skb_push unless you know that the checksum difference is zero (e.g., a valid IP header) or you are setting ip_summed to CHECKSUM_NONE.