diff --git a/arch/mips/pmc-sierra/yosemite/setup.c b/arch/mips/pmc-sierra/yosemite/setup.c
index 855977ca51cd3d5e05fd09bec366a40ce687a89b..6537d90a25bbcbd1cc0430a41e2e0d6b46950616 100644
--- a/arch/mips/pmc-sierra/yosemite/setup.c
+++ b/arch/mips/pmc-sierra/yosemite/setup.c
@@ -143,9 +143,6 @@ void __init plat_time_init(void)
 mips_hpt_frequency = 33000000 * 3 * 5;
 }
 
-/* No other usable initialization hook than this ...  */
-extern void (*late_time_init)(void);
-
 unsigned long ocd_base;
 
 EXPORT_SYMBOL(ocd_base);
diff --git a/arch/ppc/platforms/sbc82xx.c b/arch/ppc/platforms/sbc82xx.c
index 0df6aacb8237e5429e1af92ba0e06284d25181cd..24f6e0694ac1499d5e28dba98772ac4bb17fe94e 100644
--- a/arch/ppc/platforms/sbc82xx.c
+++ b/arch/ppc/platforms/sbc82xx.c
@@ -30,8 +30,6 @@ static void (*callback_init_IRQ)(void);
 
 extern unsigned char __res[sizeof(bd_t)];
 
-extern void (*late_time_init)(void);
-
 #ifdef CONFIG_GEN_RTC
 TODC_ALLOC();
 
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index e066e84493b129a23f7018ce09d145dddf14f97b..0d0cea2ac98d5df30a308aa4468b14db3f7f681b 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -4,6 +4,7 @@
  */
 
 #include <linux/clockchips.h>
+#include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/jiffies.h>
 #include <linux/threads.h>
@@ -109,8 +110,6 @@ static void __init setup_itimer(void)
 	clockevents_register_device(&itimer_clockevent);
 }
 
-extern void (*late_time_init)(void);
-
 void __init time_init(void)
 {
 	long long nsecs;
diff --git a/arch/x86/kernel/time_32.c b/arch/x86/kernel/time_32.c
index 1a89e93f3f1ccfad3696921f25492e60f2bfdfbc..2ff21f398934b049975a427e463b046e9226d079 100644
--- a/arch/x86/kernel/time_32.c
+++ b/arch/x86/kernel/time_32.c
@@ -115,7 +115,6 @@ irqreturn_t timer_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-extern void (*late_time_init)(void);
 /* Duplicate of time_init() below, with hpet_enable part added */
 void __init hpet_time_init(void)
 {
diff --git a/include/asm-x86/time.h b/include/asm-x86/time.h
index 68779b048a3edba6f3371bb459735d8a170aec9f..bce72d7a958c21829aa79c041b4ac2fb06178421 100644
--- a/include/asm-x86/time.h
+++ b/include/asm-x86/time.h
@@ -1,7 +1,6 @@
 #ifndef _ASMX86_TIME_H
 #define _ASMX86_TIME_H
 
-extern void (*late_time_init)(void);
 extern void hpet_time_init(void);
 
 #include <asm/mc146818rtc.h>
diff --git a/include/linux/init.h b/include/linux/init.h
index fb58c0493cf2f4524232ed95fd7b56371602ad28..21d658cdfa27769146ea52dae2cbf61b3de7f302 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -147,6 +147,8 @@ extern unsigned int reset_devices;
 void setup_arch(char **);
 void prepare_namespace(void);
 
+extern void (*late_time_init)(void);
+
 #endif
   
 #ifndef MODULE