LXR linux/include/linux/ceph/ceph

   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