linux-kernel - Re: [PATCH v2 2/2] iio: temperature: add support for MCP998X

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Message-ID: <202505301210.l4ZriiEX-lkp@intel.com>
Date: Fri, 30 May 2025 12:39:46 +0800
From: kernel test robot <lkp@...el.com>
To: victor.duicu@...rochip.com, jic23@...nel.org, dlechner@...libre.com,
	nuno.sa@...log.com, andy@...nel.org, robh@...nel.org,
	krzk+dt@...nel.org, conor+dt@...nel.org
Cc: oe-kbuild-all@...ts.linux.dev, marius.cristea@...rochip.com,
	victor.duicu@...rochip.com, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 2/2] iio: temperature: add support for MCP998X

Hi,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 0c86e33819785fe50616b6ee3fb35c1e4be406d5]

url:    https://github.com/intel-lab-lkp/linux/commits/victor-duicu-microchip-com/dt-bindings-iio-temperature-add-support-for-MCP998X/20250529-173844
base:   0c86e33819785fe50616b6ee3fb35c1e4be406d5
patch link:    https://lore.kernel.org/r/20250529093628.15042-3-victor.duicu%40microchip.com
patch subject: [PATCH v2 2/2] iio: temperature: add support for MCP998X
config: m68k-randconfig-r111-20250530 (https://download.01.org/0day-ci/archive/20250530/202505301210.l4ZriiEX-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 12.4.0
reproduce: (https://download.01.org/0day-ci/archive/20250530/202505301210.l4ZriiEX-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/202505301210.l4ZriiEX-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/iio/temperature/mcp9982.c:200:14: sparse: sparse: symbol 'mcp9982_3db_values_map_tbl' was not declared. Should it be static?

vim +/mcp9982_3db_values_map_tbl +200 drivers/iio/temperature/mcp9982.c

   199	
 > 200	unsigned int mcp9982_3db_values_map_tbl[11][3][2];
   201	static const int mcp9982_sampl_fr[][2] = {
   202		{ 1, 16 },
   203		{ 1, 8 },
   204		{ 1, 4 },
   205		{ 1, 2 },
   206		{ 1, 1 },
   207		{ 2, 1 },
   208		{ 4, 1 },
   209		{ 8, 1 },
   210		{ 16, 1 },
   211		{ 32, 1 },
   212		{ 64, 1 },
   213	};
   214	

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