[PATCH vireshk] cpufreq: stats: cpufreq_stats_lock can be static

[kbuild test robot]

drivers/cpufreq/cpufreq_stats.c:19:1: sparse: symbol 'cpufreq_stats_lock' was not declared. Should it be static?

Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---
 cpufreq_stats.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index d333659..de55ca8 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -16,7 +16,7 @@
 #include <linux/slab.h>
 #include <linux/cputime.h>
 
-DEFINE_MUTEX(cpufreq_stats_lock);
+static DEFINE_MUTEX(cpufreq_stats_lock);
 
 struct cpufreq_stats {
 	unsigned int total_trans;
--
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