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))
1609 struct ubuf_info *msg_zerocopy_realloc(struct sock *sk, size_t size,
1610 				       struct ubuf_info *uarg);
1612 void msg_zerocopy_put_abort(struct ubuf_info *uarg, bool have_uref);
1614 void msg_zerocopy_callback(struct sk_buff *skb, struct ubuf_info *uarg,
1629 			     struct ubuf_info *uarg);
1639 static inline struct ubuf_info *skb_zcopy(struct sk_buff *skb)  in skb_zcopy()
1662 static inline void net_zcopy_get(struct ubuf_info *uarg)  in net_zcopy_get()
1667 static inline void skb_zcopy_init(struct sk_buff *skb, struct ubuf_info *uarg)  in skb_zcopy_init()
1673 static inline void skb_zcopy_set(struct sk_buff *skb, struct ubuf_info *uarg,  in skb_zcopy_set()
1701 static inline void net_zcopy_put(struct ubuf_info *uarg)  in net_zcopy_put()
1707 static inline void net_zcopy_put_abort(struct ubuf_info *uarg, bool have_uref)  in net_zcopy_put_abort()
1720 	struct ubuf_info *uarg = skb_zcopy(skb);  in skb_zcopy_clear()