1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _FS_CEPH_DEBUG_H
3 #define _FS_CEPH_DEBUG_H
4 
5 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
6 
7 #include <linux/string.h>
8 
9 #ifdef CONFIG_CEPH_LIB_PRETTYDEBUG
10 
11 /*
12  * wrap pr_debug to include a filename:lineno prefix on each line.
13  * this incurs some overhead (kernel size and execution time) due to
14  * the extra function call at each call site.
15  */
16 
17 # if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
18 #  define dout(fmt, ...)						\
19 	pr_debug("%.*s %12.12s:%-4d : " fmt,				\
20 		 8 - (int)sizeof(KBUILD_MODNAME), "    ",		\
21 		 kbasename(__FILE__), __LINE__, ##__VA_ARGS__)
22 # else
23 /* faux printk call just to see any compiler warnings. */
24 #  define dout(fmt, ...)	do {				\
25 		if (0)						\
26 			printk(KERN_DEBUG fmt, ##__VA_ARGS__);	\
27 	} while (0)
28 # endif
29 
30 #else
31 
32 /*
33  * or, just wrap pr_debug
34  */
35 # define dout(fmt, ...)	pr_debug(" " fmt, ##__VA_ARGS__)
36 
37 #endif
38 
39 #endif
40