skb_postpull_rcsum (9) - Linux Manuals

skb_postpull_rcsum: update checksum for received skb after pull

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.

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