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From: Ben Hutchings <ben@decadent.org.uk>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
CC: akpm@linux-foundation.org, "Mike Snitzer" <snitzer@redhat.com>,
        "Joe Perches" <joe@perches.com>
Date: Mon, 06 Nov 2017 23:03:02 +0000
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Subject: [PATCH 3.16 153/294] dm: convert DM printk macros to pr_<level>
 macros
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3.16.50-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Joe Perches <joe@perches.com>

commit d2c3c8dcb5987b8352e82089c79a41b6e17e28d2 upstream.

Using pr_<level> is the more common logging style.

Standardize style and use new macro DM_FMT.
Use no_printk in DMDEBUG macros when CONFIG_DM_DEBUG is not #defined.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
 include/linux/device-mapper.h | 71 +++++++++++++++++++------------------------
 1 file changed, 32 insertions(+), 39 deletions(-)

--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -489,48 +489,41 @@ extern struct ratelimit_state dm_ratelim
 #define dm_ratelimit()	0
 #endif
 
-#define DMCRIT(f, arg...) \
-	printk(KERN_CRIT DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
+#define DM_FMT(fmt) DM_NAME ": " DM_MSG_PREFIX ": " fmt "\n"
 
-#define DMERR(f, arg...) \
-	printk(KERN_ERR DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
-#define DMERR_LIMIT(f, arg...) \
-	do { \
-		if (dm_ratelimit())	\
-			printk(KERN_ERR DM_NAME ": " DM_MSG_PREFIX ": " \
-			       f "\n", ## arg); \
-	} while (0)
-
-#define DMWARN(f, arg...) \
-	printk(KERN_WARNING DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
-#define DMWARN_LIMIT(f, arg...) \
-	do { \
-		if (dm_ratelimit())	\
-			printk(KERN_WARNING DM_NAME ": " DM_MSG_PREFIX ": " \
-			       f "\n", ## arg); \
-	} while (0)
-
-#define DMINFO(f, arg...) \
-	printk(KERN_INFO DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
-#define DMINFO_LIMIT(f, arg...) \
-	do { \
-		if (dm_ratelimit())	\
-			printk(KERN_INFO DM_NAME ": " DM_MSG_PREFIX ": " f \
-			       "\n", ## arg); \
-	} while (0)
+#define DMCRIT(fmt, ...) pr_crit(DM_FMT(fmt), ##__VA_ARGS__)
+
+#define DMERR(fmt, ...) pr_err(DM_FMT(fmt), ##__VA_ARGS__)
+#define DMERR_LIMIT(fmt, ...)						\
+do {									\
+	if (dm_ratelimit())						\
+		DMERR(fmt, ##__VA_ARGS__);				\
+} while (0)
+
+#define DMWARN(fmt, ...) pr_warn(DM_FMT(fmt), ##__VA_ARGS__)
+#define DMWARN_LIMIT(fmt, ...)						\
+do {									\
+	if (dm_ratelimit())						\
+		DMWARN(fmt, ##__VA_ARGS__);				\
+} while (0)
+
+#define DMINFO(fmt, ...) pr_info(DM_FMT(fmt), ##__VA_ARGS__)
+#define DMINFO_LIMIT(fmt, ...)						\
+do {									\
+	if (dm_ratelimit())						\
+		DMINFO(fmt, ##__VA_ARGS__);				\
+} while (0)
 
 #ifdef CONFIG_DM_DEBUG
-#  define DMDEBUG(f, arg...) \
-	printk(KERN_DEBUG DM_NAME ": " DM_MSG_PREFIX " DEBUG: " f "\n", ## arg)
-#  define DMDEBUG_LIMIT(f, arg...) \
-	do { \
-		if (dm_ratelimit())	\
-			printk(KERN_DEBUG DM_NAME ": " DM_MSG_PREFIX ": " f \
-			       "\n", ## arg); \
-	} while (0)
+#define DMDEBUG(fmt, ...) printk(KERN_DEBUG DM_FMT(fmt), ##__VA_ARGS__)
+#define DMDEBUG_LIMIT(fmt, ...)						\
+do {									\
+	if (dm_ratelimit())						\
+		DMDEBUG(fmt, ##__VA_ARGS__);				\
+} while (0)
 #else
-#  define DMDEBUG(f, arg...) do {} while (0)
-#  define DMDEBUG_LIMIT(f, arg...) do {} while (0)
+#define DMDEBUG(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
+#define DMDEBUG_LIMIT(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
 #endif
 
 #define DMEMIT(x...) sz += ((sz >= maxlen) ? \