1 files changed, 13 insertions, 20 deletions

diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index f8c2e1767500..1c70028f81f9 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -1,6 +1,8 @@
 #ifndef _DYNAMIC_DEBUG_H
 #define _DYNAMIC_DEBUG_H
 
+#include <linux/jump_label.h>
+
 /* dynamic_printk_enabled, and dynamic_printk_enabled2 are bitmasks in which
  * bit n is set to 1 if any modname hashes into the bucket n, 0 otherwise. They
  * use independent hash functions, to reduce the chance of false positives.
@@ -22,17 +24,16 @@ struct _ddebug {
         const char *function;
         const char *filename;
         const char *format;
-        char primary_hash;
-        char secondary_hash;
         unsigned int lineno:24;
         /*
          * The flags field controls the behaviour at the callsite.
          * The bits here are changed dynamically when the user
-         * writes commands to <debugfs>/dynamic_debug/ddebug
+         * writes commands to <debugfs>/dynamic_debug/control
          */
 #define _DPRINTK_FLAGS_PRINT   (1<<0)  /* printk() a message using the format */
 #define _DPRINTK_FLAGS_DEFAULT 0
         unsigned int flags:8;
+        char enabled;
 } __attribute__((aligned(8)));
 
 
@@ -40,23 +41,15 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
                                 const char *modname);
 
 #if defined(CONFIG_DYNAMIC_DEBUG)
-extern int ddebug_remove_module(char *mod_name);
-
-#define __dynamic_dbg_enabled(dd)  ({        \
-        int __ret = 0;                                                       \
-        if (unlikely((dynamic_debug_enabled & (1LL << DEBUG_HASH)) &&        \
-                        (dynamic_debug_enabled2 & (1LL << DEBUG_HASH2))))   \
-                                if (unlikely(dd.flags))                      \
-                                        __ret = 1;                           \
-        __ret; })
+extern int ddebug_remove_module(const char *mod_name);
 
 #define dynamic_pr_debug(fmt, ...) do {                                 \
         static struct _ddebug descriptor                                \
         __used                                                          \
         __attribute__((section("__verbose"), aligned(8))) =             \
-        { KBUILD_MODNAME, __func__, __FILE__, fmt, DEBUG_HASH,  \
-                DEBUG_HASH2, __LINE__, _DPRINTK_FLAGS_DEFAULT };        \
-        if (__dynamic_dbg_enabled(descriptor))                          \
+        { KBUILD_MODNAME, __func__, __FILE__, fmt, __LINE__,            \
+                _DPRINTK_FLAGS_DEFAULT };                               \
+        if (unlikely(descriptor.enabled))                               \
                 printk(KERN_DEBUG pr_fmt(fmt),  ##__VA_ARGS__);         \
         } while (0)
 
@@ -65,22 +58,22 @@ extern int ddebug_remove_module(char *mod_name);
         static struct _ddebug descriptor                                \
         __used                                                          \
         __attribute__((section("__verbose"), aligned(8))) =             \
-        { KBUILD_MODNAME, __func__, __FILE__, fmt, DEBUG_HASH,  \
-                DEBUG_HASH2, __LINE__, _DPRINTK_FLAGS_DEFAULT };        \
-        if (__dynamic_dbg_enabled(descriptor))                          \
+        { KBUILD_MODNAME, __func__, __FILE__, fmt, __LINE__,            \
+                _DPRINTK_FLAGS_DEFAULT };                               \
+        if (unlikely(descriptor.enabled))                               \
                 dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__);        \
         } while (0)
 
 #else
 
-static inline int ddebug_remove_module(char *mod)
+static inline int ddebug_remove_module(const char *mod)
 {
         return 0;
 }
 
 #define dynamic_pr_debug(fmt, ...)                                      \
         do { if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); } while (0)
-#define dynamic_dev_dbg(dev, format, ...)                               \
+#define dynamic_dev_dbg(dev, fmt, ...)                                  \
         do { if (0) dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); } while (0)
 #endif