[PATCH 5/5] [MIPS] unexport null_perf_irq() and make it static

[Dmitri Vorobiev <dmitri.vorobiev@gmail.com>]

This patch unexports the null_perf_irq() symbol, and simultaneously
makes this function static.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
---
 arch/mips/kernel/time.c              |    4 +---
 arch/mips/oprofile/op_impl.h         |    1 -
 arch/mips/oprofile/op_model_mipsxx.c |    5 ++++-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index d70ce5c..1f467d5 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -49,13 +49,11 @@ int update_persistent_clock(struct timespec now)
 	return rtc_mips_set_mmss(now.tv_sec);
 }
 
-int null_perf_irq(void)
+static int null_perf_irq(void)
 {
 	return 0;
 }
 
-EXPORT_SYMBOL(null_perf_irq);
-
 int (*perf_irq)(void) = null_perf_irq;
 
 EXPORT_SYMBOL(perf_irq);
diff --git a/arch/mips/oprofile/op_impl.h b/arch/mips/oprofile/op_impl.h
index fa6b4aa..2bfc17c 100644
--- a/arch/mips/oprofile/op_impl.h
+++ b/arch/mips/oprofile/op_impl.h
@@ -10,7 +10,6 @@
 #ifndef OP_IMPL_H
 #define OP_IMPL_H 1
 
-extern int null_perf_irq(void);
 extern int (*perf_irq)(void);
 
 /* Per-counter configuration as set via oprofilefs.  */
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index ccbea22..12e840f 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -31,6 +31,8 @@
 
 #define M_COUNTER_OVERFLOW		(1UL      << 31)
 
+int (*save_perf_irq)(void);
+
 #ifdef CONFIG_MIPS_MT_SMP
 #define WHAT		(M_TC_EN_VPE | M_PERFCTL_VPEID(smp_processor_id()))
 #define vpe_id()	smp_processor_id()
@@ -355,6 +357,7 @@ static int __init mipsxx_init(void)
 		return -ENODEV;
 	}
 
+	save_perf_irq = perf_irq;
 	perf_irq = mipsxx_perfcount_handler;
 
 	return 0;
@@ -367,7 +370,7 @@ static void mipsxx_exit(void)
 	counters = counters_per_cpu_to_total(counters);
 	reset_counters(counters);
 
-	perf_irq = null_perf_irq;
+	perf_irq = save_perf_irq;
 }
 
 struct op_mips_model op_model_mipsxx_ops = {
-- 
1.5.3