Re: [PATCH 2/2] drivers: hwmon: add driver for max42500

[kernel test robot <lkp@intel.com>]

In-Reply-To: <20241220012003.9568-3-Kent.Libetario@analog.com>
References: <20241220012003.9568-3-Kent.Libetario@analog.com>
TO: Kent Libetario <Kent.Libetario@analog.com>
TO: linux-hwmon@vger.kernel.org
TO: devicetree@vger.kernel.org
TO: linux-kernel@vger.kernel.org
CC: Jean Delvare <jdelvare@suse.com>
CC: Guenter Roeck <linux@roeck-us.net>
CC: Rob Herring <robh@kernel.org>
CC: Krzysztof Kozlowski <krzk@kernel.org>
CC: Conor Dooley <conor+dt@kernel.org>

Hi Kent,

kernel test robot noticed the following build warnings:

[auto build test WARNING on de076198d1e4934c5fc17aa52d5f1884f469ce1a]

url:    https://github.com/intel-lab-lkp/linux/commits/Kent-Libetario/dt-bindings-hwmon-add-adi-max42500-yaml/20241220-092728
base:   de076198d1e4934c5fc17aa52d5f1884f469ce1a
patch link:    https://lore.kernel.org/r/20241220012003.9568-3-Kent.Libetario%40analog.com
patch subject: [PATCH 2/2] drivers: hwmon: add driver for max42500
config: x86_64-randconfig-003-20241223 (https://download.01.org/0day-ci/archive/20241223/202412230626.JsC2Jzh5-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241223/202412230626.JsC2Jzh5-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412230626.JsC2Jzh5-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from drivers/hwmon/max42500.c:18:
   In file included from include/linux/i2c.h:19:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:21:
   In file included from include/linux/mm.h:2223:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> drivers/hwmon/max42500.c:201:33: warning: arithmetic between different enumeration types ('enum max42500_vm_input' and 'enum max42500_comp_stat') [-Wenum-enum-conversion]
     201 |         u8 comp_status[MAX42500_VM_MAX * MAX42500_COMP_STAT_MAX];
         |                        ~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~
   2 warnings generated.


vim +201 drivers/hwmon/max42500.c

   189	
   190	struct max42500_state {
   191		struct i2c_client *client;
   192		struct regmap *regmap;
   193		struct max42500_config *config;
   194		long pwrup_stamp[MAX42500_VM_MAX];
   195		long pwrdn_stamp[MAX42500_VM_MAX];
   196		u8 ov_thresh1[MAX42500_VM_MAX - 2];
   197		u8 ov_thresh2[MAX42500_VM_MAX - 5];
   198		u8 uv_thresh1[MAX42500_VM_MAX - 2];
   199		u8 uv_thresh2[MAX42500_VM_MAX - 5];
   200		u8 nominal_volt[MAX42500_VM_MAX - 2];
 > 201		u8 comp_status[MAX42500_VM_MAX * MAX42500_COMP_STAT_MAX];
   202	};
   203	

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