skb_chkf         4478 include/linux/skbuff.h 				     __sum16(*skb_chkf)(struct sk_buff *skb));
skb_chkf         4970 net/core/skbuff.c 				     __sum16(*skb_chkf)(struct sk_buff *skb))
skb_chkf         4984 net/core/skbuff.c 	ret = skb_chkf(skb_chk);