77 	struct cat_set	*prev;  member
85 	struct cat_msg	*prev;  member
177 	p->prev = NULL;
187 	struct cat_set	*prev, *next;  local
211 			first_set->prev = current_set;
231 	prev = current_set;
234 	current_set->prev = prev;
236 	if (prev)
237 		prev->next = current_set;
241 		next->prev = current_set;
248 	struct cat_set	*prev, *next, *setp;  local
270 	prev = setp->prev;
273 	if (prev)
274 		prev->next = next;
278 		next->prev = prev;
295 	p->prev = NULL;
309 	struct cat_msg	*prev, *next;  local
326 			current_set->first_msg->prev = current_msg;
334 				current_set->first_msg->next->prev =
350 		prev = current_msg->prev;
354 		prev = current_msg;
359 	current_msg->prev = prev;
361 	if (prev)
362 		prev->next = current_msg;
366 		next->prev = current_msg;
374 	struct cat_msg	*prev, *next;  local
395 		prev = current_msg->prev;
398 		if (prev) {
399 			current_msg = prev;
400 			prev->next = next;
406 			next->prev = prev;