533 struct ubuf_info {  struct
534 	void (*callback)(struct sk_buff *, struct ubuf_info *,  argument
541 	struct ubuf_info ubuf;  argument
562 #define skb_uarg(SKB)	((struct ubuf_info *)(skb_shinfo(SKB)->destructor_arg))
1638 struct ubuf_info *msg_zerocopy_realloc(struct sock *sk, size_t size,
1639 				       struct ubuf_info *uarg);
1641 void msg_zerocopy_put_abort(struct ubuf_info *uarg, bool have_uref);
1643 void msg_zerocopy_callback(struct sk_buff *skb, struct ubuf_info *uarg,
1658 			     struct ubuf_info *uarg);
1668 static inline struct ubuf_info *skb_zcopy(struct sk_buff *skb)  in skb_zcopy()
1691 static inline void net_zcopy_get(struct ubuf_info *uarg)  in net_zcopy_get()
1696 static inline void skb_zcopy_init(struct sk_buff *skb, struct ubuf_info *uarg)  in skb_zcopy_init()
1702 static inline void skb_zcopy_set(struct sk_buff *skb, struct ubuf_info *uarg,  in skb_zcopy_set()
1730 static inline void net_zcopy_put(struct ubuf_info *uarg)  in net_zcopy_put()
1736 static inline void net_zcopy_put_abort(struct ubuf_info *uarg, bool have_uref)  in net_zcopy_put_abort()
1749 	struct ubuf_info *uarg = skb_zcopy(skb);  in skb_zcopy_clear()