Index: linux-stable/arch/mips/kernel/early_printk.c
===================================================================
--- linux-stable.orig/arch/mips/kernel/early_printk.c
+++ linux-stable/arch/mips/kernel/early_printk.c
@@ -8,6 +8,7 @@
  *   written by Ralf Baechle (ralf@linux-mips.org)
  */
 #include <linux/console.h>
+#include <linux/printk.h>
 #include <linux/init.h>
 
 #include <asm/setup.h>
Index: linux-stable/arch/tile/kernel/early_printk.c
===================================================================
--- linux-stable.orig/arch/tile/kernel/early_printk.c
+++ linux-stable/arch/tile/kernel/early_printk.c
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/string.h>
 #include <linux/irqflags.h>
+#include <linux/printk.h>
 #include <asm/setup.h>
 #include <hv/hypervisor.h>
 
Index: linux-stable/include/linux/printk.h
===================================================================
--- linux-stable.orig/include/linux/printk.h
+++ linux-stable/include/linux/printk.h
@@ -98,6 +98,7 @@ int no_printk(const char *fmt, ...)
 #ifdef CONFIG_EARLY_PRINTK
 extern asmlinkage __printf(1, 2)
 void early_printk(const char *fmt, ...);
+void early_vprintk(const char *fmt, va_list ap);
 extern void printk_kill(void);
 #else
 static inline __printf(1, 2) __cold
Index: linux-stable/kernel/printk.c
===================================================================
--- linux-stable.orig/kernel/printk.c
+++ linux-stable/kernel/printk.c
@@ -1228,7 +1228,7 @@ SYSCALL_DEFINE3(syslog, int, type, char 
 #ifdef CONFIG_EARLY_PRINTK
 struct console *early_console;
 
-static void early_vprintk(const char *fmt, va_list ap)
+void early_vprintk(const char *fmt, va_list ap)
 {
 	if (early_console) {
 		char buf[512];
Index: linux-stable/localversion-rt
===================================================================
--- linux-stable.orig/localversion-rt
+++ linux-stable/localversion-rt
@@ -1 +1 @@
--rt4
+-rt5