linux-kernel - Re: [PATCH v2 2/2] iio: adc: add ltc2309 support

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Date:   Sat, 26 Aug 2023 03:46:50 +0800
From:   kernel test robot <lkp@...el.com>
To:     Liam Beguin <liambeguin@...il.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        Liam Beguin <liambeguin@...il.com>
Subject: Re: [PATCH v2 2/2] iio: adc: add ltc2309 support

Hi Liam,

kernel test robot noticed the following build warnings:

[auto build test WARNING on a5e505a99ca748583dbe558b691be1b26f05d678]

url:    https://github.com/intel-lab-lkp/linux/commits/Liam-Beguin/dt-bindings-iio-adc-add-lltc-ltc2309-bindings/20230826-022412
base:   a5e505a99ca748583dbe558b691be1b26f05d678
patch link:    https://lore.kernel.org/r/20230825-ltc2309-v2-2-6d75f2b3fb50%40gmail.com
patch subject: [PATCH v2 2/2] iio: adc: add ltc2309 support
config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230826/202308260324.RYZ1IVWw-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230826/202308260324.RYZ1IVWw-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308260324.RYZ1IVWw-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/iio/adc/ltc2309.c:163:6: warning: no previous prototype for 'ltc2309_regulator_disable' [-Wmissing-prototypes]
     163 | void ltc2309_regulator_disable(void *regulator)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~


vim +/ltc2309_regulator_disable +163 drivers/iio/adc/ltc2309.c

   162	
 > 163	void ltc2309_regulator_disable(void *regulator)
   164	{
   165		struct regulator *r = (struct regulator *)regulator;
   166	
   167		regulator_disable(r);
   168	}
   169	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki