1 /* 2 * Copyright (c) 2013 Google, Inc 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #ifndef __DM_UTIL_H 8 #define __DM_UTIL_H 9 10 void dm_warn(const char *fmt, ...); 11 12 #ifdef DEBUG 13 void dm_dbg(const char *fmt, ...); 14 #else 15 static inline void dm_dbg(const char *fmt, ...) 16 { 17 } 18 #endif 19 20 struct list_head; 21 22 /** 23 * list_count_items() - Count number of items in a list 24 * 25 * @param head: Head of list 26 * @return number of items, or 0 if empty 27 */ 28 int list_count_items(struct list_head *head); 29 30 #endif 31