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 | |