168 #define sk_msg_iter_prev(msg, which)			\  argument
169 	sk_msg_iter_var_prev(msg->sg.which)
171 #define sk_msg_iter_next(msg, which)			\  argument
172 	sk_msg_iter_var_next(msg->sg.which)
182 			       int which, u32 size)  in sk_msg_xfer()  argument
184 	dst->sg.data[which] = src->sg.data[which];  in sk_msg_xfer()
185 	dst->sg.data[which].length  = size;  in sk_msg_xfer()
188 	src->sg.data[which].length -= size;  in sk_msg_xfer()
189 	src->sg.data[which].offset += size;  in sk_msg_xfer()
208 static inline struct scatterlist *sk_msg_elem(struct sk_msg *msg, int which)  in sk_msg_elem()  argument
210 	return &msg->sg.data[which];  in sk_msg_elem()
213 static inline struct scatterlist sk_msg_elem_cpy(struct sk_msg *msg, int which)  in sk_msg_elem_cpy()  argument
215 	return msg->sg.data[which];  in sk_msg_elem_cpy()
218 static inline struct page *sk_msg_page(struct sk_msg *msg, int which)  in sk_msg_page()  argument
220 	return sg_page(sk_msg_elem(msg, which));  in sk_msg_page()