--- ./include/linux/kernel.h.ext3	2006-02-22 16:28:44.000000000 +0300
+++ ./include/linux/kernel.h	2006-02-23 19:40:08.000000000 +0300
@@ -97,6 +97,8 @@ extern int __kernel_text_address(unsigne
 extern int kernel_text_address(unsigned long addr);
 extern int session_of_pgrp(int pgrp);
 
+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)));
 
--- ./kernel/printk.c.ext3	2006-02-22 16:28:45.000000000 +0300
+++ ./kernel/printk.c	2006-02-23 19:38:59.000000000 +0300
@@ -656,6 +656,8 @@ out:
 	return printed_len;
 }
 
+EXPORT_SYMBOL(vprintk);
+
 asmlinkage int printk(const char *fmt, ...)
 {
 	va_list args;