device and dynamic_debug: Use dev_vprintk_emit and dev_printk_emit

Convert direct calls of vprintk_emit and printk_emit to the
dev_ equivalents.

Make create_syslog_header static.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: Jim Cromie <jim.cromie@gmail.com>
Acked-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/base/core.c

@@ -1865,7 +1865,8 @@ void device_shutdown(void)
  */
 
 #ifdef CONFIG_PRINTK
-int create_syslog_header(const struct device *dev, char *hdr, size_t hdrlen)
+static int
+create_syslog_header(const struct device *dev, char *hdr, size_t hdrlen)
 {
 	const char *subsys;
 	size_t pos = 0;
@@ -1943,15 +1944,10 @@ EXPORT_SYMBOL(dev_printk_emit);
 static int __dev_printk(const char *level, const struct device *dev,
 			struct va_format *vaf)
 {
-	char hdr[128];
-	size_t hdrlen;
-
 	if (!dev)
 		return printk("%s(NULL device *): %pV", level, vaf);
 
-	hdrlen = create_syslog_header(dev, hdr, sizeof(hdr));
-
-	return printk_emit(0, level[1] - '0', hdrlen ? hdr : NULL, hdrlen,
+	return dev_printk_emit(level[1] - '0', dev,
 			       "%s %s: %pV",
 			       dev_driver_string(dev), dev_name(dev), vaf);
 }

include/linux/device.h

@@ -895,8 +895,6 @@ extern const char *dev_driver_string(const struct device *dev);
 
 #ifdef CONFIG_PRINTK
 
-extern int create_syslog_header(const struct device *dev,
-				char *hdr, size_t hdrlen);
 extern int dev_vprintk_emit(int level, const struct device *dev,
 			    const char *fmt, va_list args);
 extern __printf(3, 4)

lib/dynamic_debug.c

@@ -591,15 +591,11 @@ int __dynamic_dev_dbg(struct _ddebug *descriptor,
 		res = printk(KERN_DEBUG "(NULL device *): %pV", &vaf);
 	} else {
 		char buf[PREFIX_SIZE];
-		char dict[128];
-		size_t dictlen;
 
-		dictlen = create_syslog_header(dev, dict, sizeof(dict));
-
-		res = printk_emit(0, 7, dictlen ? dict : NULL, dictlen,
-				  "%s%s %s: %pV",
+		res = dev_printk_emit(7, dev, "%s%s %s: %pV",
 				      dynamic_emit_prefix(descriptor, buf),
-				  dev_driver_string(dev), dev_name(dev), &vaf);
+				      dev_driver_string(dev), dev_name(dev),
+				      &vaf);
 	}
 
 	va_end(args);
@@ -627,13 +623,8 @@ int __dynamic_netdev_dbg(struct _ddebug *descriptor,
 
 	if (dev && dev->dev.parent) {
 		char buf[PREFIX_SIZE];
-		char dict[128];
-		size_t dictlen;
-
-		dictlen = create_syslog_header(dev->dev.parent,
-					       dict, sizeof(dict));
 
-		res = printk_emit(0, 7, dictlen ? dict : NULL, dictlen,
+		res = dev_printk_emit(7, dev->dev.parent,
 				      "%s%s %s %s: %pV",
 				      dynamic_emit_prefix(descriptor, buf),
 				      dev_driver_string(dev->dev.parent),

net/core/dev.c

@@ -6429,12 +6429,8 @@ static int __netdev_printk(const char *level, const struct net_device *dev,
 	int r;
 
 	if (dev && dev->dev.parent) {
-		char dict[128];
-		size_t dictlen = create_syslog_header(dev->dev.parent,
-						      dict, sizeof(dict));
-
-		r = printk_emit(0, level[1] - '0',
-				dictlen ? dict : NULL, dictlen,
+		r = dev_printk_emit(level[1] - '0',
+				    dev->dev.parent,
 				    "%s %s %s: %pV",
 				    dev_driver_string(dev->dev.parent),
 				    dev_name(dev->dev.parent),