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