printk: Make printk_emit() local function.

printk_emit() is called from only devkmsg_write() in the same file.
Save object size by making it a local function.

Link: http://lkml.kernel.org/r/5cc99d2c-c408-34f7-d1fc-e1cd2a9e31da@i-love.sakura.ne.jp
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>

include/linux/printk.h

@@ -166,11 +166,6 @@ int vprintk_emit(int facility, int level,
 asmlinkage __printf(1, 0)
 int vprintk(const char *fmt, va_list args);
 
-asmlinkage __printf(5, 6) __cold
-int printk_emit(int facility, int level,
-		const char *dict, size_t dictlen,
-		const char *fmt, ...);
-
 asmlinkage __printf(1, 2) __cold
 int printk(const char *fmt, ...);
 

kernel/printk/printk.c

@@ -753,6 +753,19 @@ struct devkmsg_user {
 	char buf[CONSOLE_EXT_LOG_MAX];
 };
 
+static __printf(3, 4) __cold
+int devkmsg_emit(int facility, int level, const char *fmt, ...)
+{
+	va_list args;
+	int r;
+
+	va_start(args, fmt);
+	r = vprintk_emit(facility, level, NULL, 0, fmt, args);
+	va_end(args);
+
+	return r;
+}
+
 static ssize_t devkmsg_write(struct kiocb *iocb, struct iov_iter *from)
 {
 	char *buf, *line;
@@ -811,7 +824,7 @@ static ssize_t devkmsg_write(struct kiocb *iocb, struct iov_iter *from)
 		}
 	}
 
-	printk_emit(facility, level, NULL, 0, "%s", line);
+	devkmsg_emit(facility, level, "%s", line);
 	kfree(buf);
 	return ret;
 }
@@ -1936,21 +1949,6 @@ asmlinkage int vprintk(const char *fmt, va_list args)
 }
 EXPORT_SYMBOL(vprintk);
 
-asmlinkage int printk_emit(int facility, int level,
-			   const char *dict, size_t dictlen,
-			   const char *fmt, ...)
-{
-	va_list args;
-	int r;
-
-	va_start(args, fmt);
-	r = vprintk_emit(facility, level, dict, dictlen, fmt, args);
-	va_end(args);
-
-	return r;
-}
-EXPORT_SYMBOL(printk_emit);
-
 int vprintk_default(const char *fmt, va_list args)
 {
 	int r;