linux-kernel - [PATCH 8/8] printk: Remove the now unnecessary "C" annotation for KERN

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Date:	Tue,  5 Jun 2012 02:46:37 -0700
From:	Joe Perches <joe@...ches.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Kay Sievers <kay@...y.org>
Subject: [PATCH 8/8] printk: Remove the now unnecessary "C" annotation for KERN_CONT

Now that all KERN_<LEVEL> uses are prefixed with ASCII SOH,
there is no need for a KERN_CONT.  Keep it backward compatible
by adding #define KERN_CONT ""

Reduces kernel image size a thousand bytes.

Signed-off-by: Joe Perches <joe@...ches.com>
---
 include/linux/kern_levels.h |    2 +-
 include/linux/printk.h      |    2 --
 2 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/include/linux/kern_levels.h b/include/linux/kern_levels.h
index 8c719a9..866caaa 100644
--- a/include/linux/kern_levels.h
+++ b/include/linux/kern_levels.h
@@ -20,6 +20,6 @@
  * line that had no enclosing \n). Only to be used by core/arch code
  * during early bootup (a continued line is not SMP-safe otherwise).
  */
-#define KERN_CONT	KERN_SOH "c"
+#define KERN_CONT	""
 
 #endif
diff --git a/include/linux/printk.h b/include/linux/printk.h
index 93a231f..9afc01e 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -13,7 +13,6 @@ static inline int printk_get_level(const char *buffer)
 		switch (buffer[1]) {
 		case '0' ... '7':
 		case 'd':	/* KERN_DEFAULT */
-		case 'c':	/* KERN_CONT */
 			return buffer[1];
 		}
 	}
@@ -26,7 +25,6 @@ static inline const char *printk_skip_level(const char *buffer)
 		switch (buffer[1]) {
 		case '0' ... '7':
 		case 'd':	/* KERN_DEFAULT */
-		case 'c':	/* KERN_CONT */
 			return buffer + 2;
 		}
 	}
-- 
1.7.8.111.gad25c.dirty

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