diff --git a/arch/mips/alchemy/board-gpr.c b/arch/mips/alchemy/board-gpr.c
index cb0f6af..9edc35f 100644
--- a/arch/mips/alchemy/board-gpr.c
+++ b/arch/mips/alchemy/board-gpr.c
@@ -31,6 +31,7 @@
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
 #include <asm/bootinfo.h>
+#include <asm/idle.h>
 #include <asm/reboot.h>
 #include <asm/mach-au1x00/au1000.h>
 #include <prom.h>
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index 38afb11..93fa586 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -36,6 +36,7 @@
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
 
+#include <asm/idle.h>
 #include <asm/processor.h>
 #include <asm/time.h>
 #include <asm/mach-au1x00/au1000.h>
diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c
index a0233a2..8be4e85 100644
--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -19,6 +19,7 @@
 #include <linux/clk.h>
 
 #include <asm/bootinfo.h>
+#include <asm/idle.h>
 #include <asm/time.h>		/* for mips_hpt_frequency */
 #include <asm/reboot.h>		/* for _machine_{restart,halt} */
 #include <asm/mips_machine.h>
diff --git a/arch/mips/cobalt/reset.c b/arch/mips/cobalt/reset.c
index 516b442..4eedd48 100644
--- a/arch/mips/cobalt/reset.c
+++ b/arch/mips/cobalt/reset.c
@@ -12,6 +12,7 @@
 #include <linux/io.h>
 #include <linux/leds.h>
 
+#include <asm/idle.h>
 #include <asm/processor.h>
 
 #include <cobalt.h>
diff --git a/arch/mips/include/asm/idle.h b/arch/mips/include/asm/idle.h
new file mode 100644
index 0000000..8b26ac5
--- /dev/null
+++ b/arch/mips/include/asm/idle.h
@@ -0,0 +1,11 @@
+#ifndef __ASM_IDLE_H
+#define __ASM_IDLE_H
+
+#include <linux/linkage.h>
+
+extern void (*cpu_wait)(void);
+extern asmlinkage void r4k_wait(void);
+extern void r4k_wait_irqoff(void);
+extern void __pastwait(void);
+
+#endif /* __ASM_IDLE_H  */
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index 71686c8..1470b7b 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -28,7 +28,6 @@
 /*
  * System setup and hardware flags..
  */
-extern void (*cpu_wait)(void);
 
 extern unsigned int vced_count, vcei_count;
 
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index 1f85dda..985cc02 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -18,6 +18,7 @@
 #include <linux/sched.h>
 #include <asm/cpu.h>
 #include <asm/cpu-info.h>
+#include <asm/idle.h>
 #include <asm/mipsregs.h>
 
 /*
@@ -44,8 +45,6 @@
 	local_irq_enable();
 }
 
-extern void r4k_wait(void);
-
 /*
  * This variant is preferable as it allows testing need_resched and going to
  * sleep depending on the outcome atomically.  Unfortunately the "It is
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index a3e4614..acb3437 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -10,6 +10,7 @@
 #include <asm/bootinfo.h>
 #include <asm/cpu.h>
 #include <asm/cpu-features.h>
+#include <asm/idle.h>
 #include <asm/mipsregs.h>
 #include <asm/processor.h>
 #include <asm/prom.h>
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index c17619f..6e7862a 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -37,6 +37,7 @@
 #include <linux/atomic.h>
 #include <asm/cpu.h>
 #include <asm/processor.h>
+#include <asm/idle.h>
 #include <asm/r4k-timer.h>
 #include <asm/mmu_context.h>
 #include <asm/time.h>
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index 7186222..46303bc 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -34,6 +34,7 @@
 #include <asm/hardirq.h>
 #include <asm/hazards.h>
 #include <asm/irq.h>
+#include <asm/idle.h>
 #include <asm/mmu_context.h>
 #include <asm/mipsregs.h>
 #include <asm/cacheflush.h>
@@ -858,7 +859,6 @@
 	unsigned long flags;
 	int mtflags;
 	unsigned long tcrestart;
-	extern void r4k_wait_irqoff(void), __pastwait(void);
 	int set_resched_flag = (type == LINUX_SMP_IPI &&
 				action == SMP_RESCHEDULE_YOURSELF);
 
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index cb14db3..c6da4a9 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -41,6 +41,7 @@
 #include <asm/dsp.h>
 #include <asm/fpu.h>
 #include <asm/fpu_emulator.h>
+#include <asm/idle.h>
 #include <asm/mipsregs.h>
 #include <asm/mipsmtregs.h>
 #include <asm/module.h>
@@ -57,7 +58,6 @@
 #include <asm/uasm.h>
 
 extern void check_wait(void);
-extern asmlinkage void r4k_wait(void);
 extern asmlinkage void rollback_handle_int(void);
 extern asmlinkage void handle_int(void);
 extern u32 handle_tlbl[];
diff --git a/arch/mips/loongson/common/reset.c b/arch/mips/loongson/common/reset.c
index 35c8c64..65bfbb5 100644
--- a/arch/mips/loongson/common/reset.c
+++ b/arch/mips/loongson/common/reset.c
@@ -12,6 +12,7 @@
 #include <linux/init.h>
 #include <linux/pm.h>
 
+#include <asm/idle.h>
 #include <asm/reboot.h>
 
 #include <loongson.h>
diff --git a/arch/mips/loongson1/common/reset.c b/arch/mips/loongson1/common/reset.c
index d4f610f..547f34b 100644
--- a/arch/mips/loongson1/common/reset.c
+++ b/arch/mips/loongson1/common/reset.c
@@ -9,6 +9,7 @@
 
 #include <linux/io.h>
 #include <linux/pm.h>
+#include <asm/idle.h>
 #include <asm/reboot.h>
 
 #include <loongson1.h>
diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c
index af31914..eaa99d2 100644
--- a/arch/mips/netlogic/xlp/setup.c
+++ b/arch/mips/netlogic/xlp/setup.c
@@ -37,6 +37,7 @@
 #include <linux/pm.h>
 #include <linux/bootmem.h>
 
+#include <asm/idle.h>
 #include <asm/reboot.h>
 #include <asm/time.h>
 #include <asm/bootinfo.h>
diff --git a/arch/mips/netlogic/xlr/setup.c b/arch/mips/netlogic/xlr/setup.c
index e3e0941..89c8c10 100644
--- a/arch/mips/netlogic/xlr/setup.c
+++ b/arch/mips/netlogic/xlr/setup.c
@@ -36,6 +36,7 @@
 #include <linux/serial_8250.h>
 #include <linux/pm.h>
 
+#include <asm/idle.h>
 #include <asm/reboot.h>
 #include <asm/time.h>
 #include <asm/bootinfo.h>
diff --git a/arch/mips/pmcs-msp71xx/msp_setup.c b/arch/mips/pmcs-msp71xx/msp_setup.c
index 1651cfd..396b296 100644
--- a/arch/mips/pmcs-msp71xx/msp_setup.c
+++ b/arch/mips/pmcs-msp71xx/msp_setup.c
@@ -12,6 +12,7 @@
 
 #include <asm/bootinfo.h>
 #include <asm/cacheflush.h>
+#include <asm/idle.h>
 #include <asm/r4kcache.h>
 #include <asm/reboot.h>
 #include <asm/smp-ops.h>
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 5364aab..681e7f8 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -26,6 +26,7 @@
 #include <linux/slab.h>
 #include <linux/irq.h>
 #include <asm/bootinfo.h>
+#include <asm/idle.h>
 #include <asm/time.h>
 #include <asm/reboot.h>
 #include <asm/r4kcache.h>
diff --git a/arch/mips/vr41xx/common/pmu.c b/arch/mips/vr41xx/common/pmu.c
index 70a3f90..d7f7558 100644
--- a/arch/mips/vr41xx/common/pmu.c
+++ b/arch/mips/vr41xx/common/pmu.c
@@ -27,6 +27,7 @@
 
 #include <asm/cacheflush.h>
 #include <asm/cpu.h>
+#include <asm/idle.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/reboot.h>
diff --git a/arch/mips/wrppmc/reset.c b/arch/mips/wrppmc/reset.c
index cc5474b..80beb18 100644
--- a/arch/mips/wrppmc/reset.c
+++ b/arch/mips/wrppmc/reset.c
@@ -9,6 +9,7 @@
 #include <linux/kernel.h>
 
 #include <asm/cacheflush.h>
+#include <asm/idle.h>
 #include <asm/mipsregs.h>
 #include <asm/processor.h>
 
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index 868976d..d539127 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -18,6 +18,7 @@
 #include <linux/platform_device.h>
 
 #include <asm/clock.h>
+#include <asm/idle.h>
 
 #include <asm/mach-loongson/loongson.h>