From ac83ed687837a44c6e46fb16411fb0d299fffd80 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 12 Jan 2011 16:59:47 -0800
Subject: include/linux/printk.h lib/hexdump.c: neatening and add CONFIG_PRINTK
 guard

- Move prototypes and align arguments.

- Add CONFIG_PRINTK guard for print_hex functions

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/printk.h | 42 ++++++++++++++++++++++++++++--------------
 lib/hexdump.c          |  2 ++
 2 files changed, 30 insertions(+), 14 deletions(-)

diff --git a/include/linux/printk.h b/include/linux/printk.h
index 6442156707c9..e96bd41491bd 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -141,20 +141,6 @@ static inline void log_buf_kexec_setup(void)
 
 extern void dump_stack(void) __cold;
 
-enum {
-	DUMP_PREFIX_NONE,
-	DUMP_PREFIX_ADDRESS,
-	DUMP_PREFIX_OFFSET
-};
-extern void hex_dump_to_buffer(const void *buf, size_t len,
-				int rowsize, int groupsize,
-				char *linebuf, size_t linebuflen, bool ascii);
-extern void print_hex_dump(const char *level, const char *prefix_str,
-				int prefix_type, int rowsize, int groupsize,
-				const void *buf, size_t len, bool ascii);
-extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
-			const void *buf, size_t len);
-
 #ifndef pr_fmt
 #define pr_fmt(fmt) fmt
 #endif
@@ -286,4 +272,32 @@ extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
 	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #endif
 
+
+enum {
+	DUMP_PREFIX_NONE,
+	DUMP_PREFIX_ADDRESS,
+	DUMP_PREFIX_OFFSET
+};
+extern void hex_dump_to_buffer(const void *buf, size_t len,
+			       int rowsize, int groupsize,
+			       char *linebuf, size_t linebuflen, bool ascii);
+#ifdef CONFIG_PRINTK
+extern void print_hex_dump(const char *level, const char *prefix_str,
+			   int prefix_type, int rowsize, int groupsize,
+			   const void *buf, size_t len, bool ascii);
+extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
+				 const void *buf, size_t len);
+#else
+static inline void print_hex_dump(const char *level, const char *prefix_str,
+				  int prefix_type, int rowsize, int groupsize,
+				  const void *buf, size_t len, bool ascii)
+{
+}
+static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
+					const void *buf, size_t len)
+{
+}
+
+#endif
+
 #endif
diff --git a/lib/hexdump.c b/lib/hexdump.c
index b66b2bd67952..f5fe6ba7a3ab 100644
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -154,6 +154,7 @@ nil:
 }
 EXPORT_SYMBOL(hex_dump_to_buffer);
 
+#ifdef CONFIG_PRINTK
 /**
  * print_hex_dump - print a text hex dump to syslog for a binary blob of data
  * @level: kernel log level (e.g. KERN_DEBUG)
@@ -238,3 +239,4 @@ void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
 		       buf, len, true);
 }
 EXPORT_SYMBOL(print_hex_dump_bytes);
+#endif
-- 
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