skb_copy_and_csum_dev 1647 include/linux/skbuff.h extern void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to); skb_copy_and_csum_dev 46 net/dsa/tag_trailer.c skb_copy_and_csum_dev(skb, skb_put(nskb, skb->len));