Re: [PATCH v2 2/2] hwmon: pmbus: add driver for ltp8800-1a, ltp8800-4a, and ltp8800-2

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

Hi Cedric,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 30a984c0c9d8c631cc135280f83c441d50096b6d]

url:    https://github.com/intel-lab-lkp/linux/commits/Cedric-Encarnacion/dt-bindings-trivial-devices-add-ltp8800/20241106-111734
base:   30a984c0c9d8c631cc135280f83c441d50096b6d
patch link:    https://lore.kernel.org/r/20241106030918.24849-3-cedricjustine.encarnacion%40analog.com
patch subject: [PATCH v2 2/2] hwmon: pmbus: add driver for ltp8800-1a, ltp8800-4a, and ltp8800-2
config: x86_64-buildonly-randconfig-004-20241107 (https://download.01.org/0day-ci/archive/20241107/202411070232.xrxV7tVx-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/20241107/202411070232.xrxV7tVx-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/202411070232.xrxV7tVx-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from drivers/hwmon/pmbus/ltp8800.c:7:
   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:2213:
   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/pmbus/ltp8800.c:12:36: warning: unused variable 'ltp8800_reg_desc' [-Wunused-const-variable]
      12 | static const struct regulator_desc ltp8800_reg_desc[] = {
         |                                    ^~~~~~~~~~~~~~~~
   2 warnings generated.


vim +/ltp8800_reg_desc +12 drivers/hwmon/pmbus/ltp8800.c

    11	
  > 12	static const struct regulator_desc ltp8800_reg_desc[] = {
    13		PMBUS_REGULATOR("vout", 0),
    14	};
    15	

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