linux-kernel - sound/soc/codecs/rt1318.c:1149:34: warning: unused variable 'rt1318_of

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Message-ID: <202507050416.elP8eSZp-lkp@intel.com>
Date: Sat, 5 Jul 2025 04:08:33 +0200
From: kernel test robot <lkp@...el.com>
To: Jack Yu <jack.yu@...ltek.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: sound/soc/codecs/rt1318.c:1149:34: warning: unused variable
 'rt1318_of_match'

Hi Jack,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a79a588fc1761dc12a3064fc2f648ae66cea3c5a
commit: fe1ff61487ace69cd4e680e36169c90667eb9624 ASoC: rt1318: Add RT1318 audio amplifier driver
date:   1 year, 1 month ago
config: x86_64-buildonly-randconfig-2001-20250705 (https://download.01.org/0day-ci/archive/20250705/202507050416.elP8eSZp-lkp@intel.com/config)
compiler: clang version 20.1.7 (https://github.com/llvm/llvm-project 6146a88f60492b520a36f8f8f3231e15f3cc6082)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250705/202507050416.elP8eSZp-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/202507050416.elP8eSZp-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from sound/soc/codecs/rt1318.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:2253:
   include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     514 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> sound/soc/codecs/rt1318.c:1149:34: warning: unused variable 'rt1318_of_match' [-Wunused-const-variable]
    1149 | static const struct of_device_id rt1318_of_match[] = {
         |                                  ^~~~~~~~~~~~~~~
   2 warnings generated.


vim +/rt1318_of_match +1149 sound/soc/codecs/rt1318.c

  1148	
> 1149	static const struct of_device_id rt1318_of_match[] = {
  1150		{ .compatible = "realtek,rt1318", },
  1151		{},
  1152	};
  1153	MODULE_DEVICE_TABLE(of, rt1318_of_match);
  1154	

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