linux-kernel - Re: [PATCH v3 2/2] iio: adc: add ltc2309 support

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Date:   Tue, 29 Aug 2023 11:46:46 +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 v3 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/20230829-104615
base:   a5e505a99ca748583dbe558b691be1b26f05d678
patch link:    https://lore.kernel.org/r/20230828-ltc2309-v3-2-338b3a8fab8b%40gmail.com
patch subject: [PATCH v3 2/2] iio: adc: add ltc2309 support
config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230829/202308291144.r2JZxP9a-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230829/202308291144.r2JZxP9a-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/202308291144.r2JZxP9a-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/iio/adc/ltc2309.c:42: warning: Function parameter or member 'vref_mv' not described in 'ltc2309'


vim +42 drivers/iio/adc/ltc2309.c

    27	
    28	/**
    29	 * struct ltc2309 - internal device data structure
    30	 * @dev:	Device reference
    31	 * @client:	I2C reference
    32	 * @vref:	External reference source
    33	 * @lock:	Lock to serialize data access
    34	 * @vref_mv	Internal voltage reference
    35	 */
    36	struct ltc2309 {
    37		struct device		*dev;
    38		struct i2c_client	*client;
    39		struct regulator	*vref;
    40		struct mutex		lock; /* serialize data access */
    41		int			vref_mv;
  > 42	};
    43	

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