1 /* 2 * Copyright (c) 2013 Google, Inc 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #ifndef __DM_UTIL_H 8 9 void dm_warn(const char *fmt, ...); 10 11 #ifdef DEBUG 12 void dm_dbg(const char *fmt, ...); 13 #else 14 static inline void dm_dbg(const char *fmt, ...) 15 { 16 } 17 #endif 18 19 struct list_head; 20 21 /** 22 * list_count_items() - Count number of items in a list 23 * 24 * @param head: Head of list 25 * @return number of items, or 0 if empty 26 */ 27 int list_count_items(struct list_head *head); 28 29 #endif 30