1SKB_PULL_RCSUM(9)              Linux Networking              SKB_PULL_RCSUM(9)
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NAME

6       skb_pull_rcsum - pull skb and update receive checksum
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SYNOPSIS

9       void * skb_pull_rcsum(struct sk_buff * skb, unsigned int len);
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ARGUMENTS

12       skb
13           buffer to update
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15       len
16           length of data pulled
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DESCRIPTION

19       This function performs an skb_pull on the packet and updates the
20       CHECKSUM_COMPLETE checksum. It should be used on receive path
21       processing instead of skb_pull unless you know that the checksum
22       difference is zero (e.g., a valid IP header) or you are setting
23       ip_summed to CHECKSUM_NONE.
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26Kernel Hackers Manual 3.10         June 2019                 SKB_PULL_RCSUM(9)
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