1SKB_POSTPULL_RCSUM(9)          Linux Networking          SKB_POSTPULL_RCSUM(9)
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NAME

6       skb_postpull_rcsum - update checksum for received skb after pull
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SYNOPSIS

9       void skb_postpull_rcsum(struct sk_buff * skb, const void * start,
10                               unsigned int len);
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ARGUMENTS

13       skb
14           buffer to update
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16       start
17           start of data before pull
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19       len
20           length of data pulled
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DESCRIPTION

23       After doing a pull on a received packet, you need to call this to
24       update the CHECKSUM_COMPLETE checksum, or set ip_summed to
25       CHECKSUM_NONE so that it can be recomputed from scratch.
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28Kernel Hackers Manual 3.10         June 2019             SKB_POSTPULL_RCSUM(9)
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