diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index a0d9422a156..f8c2e176750 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -57,8 +57,7 @@ extern int ddebug_remove_module(char *mod_name);
 	{ KBUILD_MODNAME, __func__, __FILE__, fmt, DEBUG_HASH,	\
 		DEBUG_HASH2, __LINE__, _DPRINTK_FLAGS_DEFAULT };	\
 	if (__dynamic_dbg_enabled(descriptor))				\
-		printk(KERN_DEBUG KBUILD_MODNAME ":" pr_fmt(fmt),	\
-				##__VA_ARGS__);				\
+		printk(KERN_DEBUG pr_fmt(fmt),	##__VA_ARGS__);		\
 	} while (0)
 
 
@@ -69,9 +68,7 @@ extern int ddebug_remove_module(char *mod_name);
 	{ KBUILD_MODNAME, __func__, __FILE__, fmt, DEBUG_HASH,	\
 		DEBUG_HASH2, __LINE__, _DPRINTK_FLAGS_DEFAULT };	\
 	if (__dynamic_dbg_enabled(descriptor))				\
-			dev_printk(KERN_DEBUG, dev,			\
-					KBUILD_MODNAME ": " fmt,	\
-					##__VA_ARGS__);			\
+		dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__);	\
 	} while (0)
 
 #else
@@ -81,8 +78,10 @@ static inline int ddebug_remove_module(char *mod)
 	return 0;
 }
 
-#define dynamic_pr_debug(fmt, ...)  do { } while (0)
-#define dynamic_dev_dbg(dev, format, ...)  do { } while (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, ...)				\
+	do { if (0) dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); } while (0)
 #endif
 
 #endif
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 3fa4c590cf1..a93cdd031ae 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -397,9 +397,8 @@ static inline char *pack_hex_byte(char *buf, u8 byte)
 	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #elif defined(CONFIG_DYNAMIC_DEBUG)
 /* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
-#define pr_debug(fmt, ...) do { \
-	dynamic_pr_debug(fmt, ##__VA_ARGS__); \
-	} while (0)
+#define pr_debug(fmt, ...) \
+	dynamic_pr_debug(fmt, ##__VA_ARGS__)
 #else
 #define pr_debug(fmt, ...) \
 	({ if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); 0; })