[stffrdhrn:starfive-bad-dcache-flush 5/39] drivers/hwmon/sfctmp.c:132:5: warning: no previous prototype for 'temp_sensor_deinit'

[stffrdhrn:starfive-bad-dcache-flush 5/39] drivers/hwmon/sfctmp.c:132:5: warning: no previous prototype for 'temp_sensor_deinit'

[kernel test robot]

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tree:   https://github.com/stffrdhrn/linux.git starfive-bad-dcache-flush
head:   a5c948a9cc2b8944f00056c067fb7bde19b34843
commit: 57954b0b0dce53804d072cca75ec36f7c2320c3a [5/39] drivers/hwmon: Add tempsensor hwmon driver for Starfive VIC7100
config: arc-allyesconfig (attached as .config)
compiler: arceb-elf-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/stffrdhrn/linux/commit/57954b0b0dce53804d072cca75ec36f7c2320c3a
        git remote add stffrdhrn https://github.com/stffrdhrn/linux.git
        git fetch --no-tags stffrdhrn starfive-bad-dcache-flush
        git checkout 57954b0b0dce53804d072cca75ec36f7c2320c3a
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 

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

All warnings (new ones prefixed by >>):

>> drivers/hwmon/sfctmp.c:132:5: warning: no previous prototype for 'temp_sensor_deinit' [-Wmissing-prototypes]
     132 | int temp_sensor_deinit(struct sfc_temp *sfc_temp)
         |     ^~~~~~~~~~~~~~~~~~


vim +/temp_sensor_deinit +132 drivers/hwmon/sfctmp.c

   131	
 > 132	int temp_sensor_deinit(struct sfc_temp *sfc_temp)
   133	{
   134		temp_sensor_power_down(sfc_temp);
   135		return 0;
   136	}
   137	

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

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