From d59745ce3e7aa13856bca16d3bcbb95041775ff6 Mon Sep 17 00:00:00 2001
From: Matt Mackall <mpm@selenic.com>
Date: Sun, 1 May 2005 08:59:02 -0700
Subject: [PATCH] clean up kernel messages
Arrange for all kernel printks to be no-ops. Only available if
CONFIG_EMBEDDED.
This patch saves about 375k on my laptop config and nearly 100k on minimal
configs.
Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
include/linux/kernel.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include/linux/kernel.h')
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 7c1cba4..e25b970 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -115,10 +115,19 @@ extern int __kernel_text_address(unsigned long addr);
extern int kernel_text_address(unsigned long addr);
extern int session_of_pgrp(int pgrp);
+#ifdef CONFIG_PRINTK
asmlinkage int vprintk(const char *fmt, va_list args)
__attribute__ ((format (printf, 1, 0)));
asmlinkage int printk(const char * fmt, ...)
__attribute__ ((format (printf, 1, 2)));
+#else
+static inline int vprintk(const char *s, va_list args)
+ __attribute__ ((format (printf, 1, 0)));
+static inline int vprintk(const char *s, va_list args) { return 0; }
+static inline int printk(const char *s, ...)
+ __attribute__ ((format (printf, 1, 2)));
+static inline int printk(const char *s, ...) { return 0; }
+#endif
unsigned long int_sqrt(unsigned long);
--
cgit v1.1