[lkundrak-linux-mmp:lr/mmp3-thermal-v1 5/5] drivers/thermal/mmp3_thermal.c:51:1: sparse: sparse: symbol 'mmp3_thermal_sensor_mutex' was not declared. Should it be static?

[lkundrak-linux-mmp:lr/mmp3-thermal-v1 5/5] drivers/thermal/mmp3_thermal.c:51:1: sparse: sparse: symbol 'mmp3_thermal_sensor_mutex' was not declared. Should it be static?

[kbuild test robot]

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tree:   git://git.kernel.org/pub/scm/linux/kernel/git/lkundrak/linux-mmp.git lr/mmp3-thermal-v1
head:   59d7465ed415ed34a602a9bb07ad1a25aaaf647f
commit: 59d7465ed415ed34a602a9bb07ad1a25aaaf647f [5/5] thermal driver
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-191-gc51a0382-dirty
        git checkout 59d7465ed415ed34a602a9bb07ad1a25aaaf647f
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/thermal/mmp3_thermal.c:51:1: sparse: sparse: symbol 'mmp3_thermal_sensor_mutex' was not declared. Should it be static?

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

[RFC PATCH lkundrak-linux-mmp] mmp3_thermal_sensor_mutex can be static

[kbuild test robot]

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Fixes: 59d7465ed415 ("thermal driver")
Signed-off-by: kbuild test robot <lkp@intel.com>
---
 mmp3_thermal.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/mmp3_thermal.c b/drivers/thermal/mmp3_thermal.c
index d0113f3546333f..aba4e15b8d07b4 100644
--- a/drivers/thermal/mmp3_thermal.c
+++ b/drivers/thermal/mmp3_thermal.c
@@ -48,7 +48,7 @@ static unsigned int gray_to_temp[2][16] = {{
           0,  610,  560,  585,  460,  485,  535,  510,
 }};
 
-DEFINE_MUTEX(mmp3_thermal_sensor_mutex);
+static DEFINE_MUTEX(mmp3_thermal_sensor_mutex);
 
 static unsigned long read_temperature_sensor(struct mmp3_thermal *priv, int range, int index)
 {