skb_push_rcsum (9) - Linux Manuals

skb_push_rcsum: push skb and update receive checksum

NAME

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.

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