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 #ifdef CONFIG_DM_WARN 11 void dm_warn(const char *fmt, ...); 12 #else 13 static inline void dm_warn(const char *fmt, ...) 14 { 15 } 16 #endif 17 18 #ifdef DEBUG 19 void dm_dbg(const char *fmt, ...); 20 #else 21 static inline void dm_dbg(const char *fmt, ...) 22 { 23 } 24 #endif 25 26 struct list_head; 27 28 /** 29 * list_count_items() - Count number of items in a list 30 * 31 * @param head: Head of list 32 * @return number of items, or 0 if empty 33 */ 34 int list_count_items(struct list_head *head); 35 36 #endif 37