--- zzzz-none-000/linux-2.6.28.10/include/linux/kernel.h	2009-05-02 18:54:43.000000000 +0000
+++ puma5-6360-529/linux-2.6.28.10/include/linux/kernel.h	2010-04-15 11:41:42.000000000 +0000
@@ -141,6 +141,11 @@
 		(__x < 0) ? -__x : __x;		\
 	})
 
+#define labs(x) ({				\
+		long __x = (x);			\
+		(__x < 0) ? -__x : __x;		\
+	})
+
 extern struct atomic_notifier_head panic_notifier_list;
 extern long (*panic_blink)(long time);
 NORET_TYPE void panic(const char * fmt, ...)
@@ -225,6 +230,22 @@
 extern int printk_ratelimit(void);
 extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
 				   unsigned int interval_msec);
+
+
+/* zeigt immer auf printk */
+extern asmlinkage int (*__printk)(const char * fmt, ...) __attribute__ ((format (printf, 1, 2)));
+extern asmlinkage int (*__vprintk)(const char * fmt, va_list args);
+
+/* wird ggf. auf andere Funktion umgebogen */
+#define printk  _printk
+#define vprintk _vprintk
+extern asmlinkage int (*_printk)(const char * fmt, ...) __attribute__ ((format (printf, 1, 2)));
+extern asmlinkage int (*_vprintk)(const char * fmt, va_list args);
+
+void set_printk(int (*__print)(const char * fmt, ...) __attribute__ ((format (printf, 1, 2))));
+void set_vprintk(int (*__vprint)(const char * fmt, va_list args));
+void restore_printk(void);
+
 #else
 static inline int vprintk(const char *s, va_list args)
 	__attribute__ ((format (printf, 1, 0)));