linux-kernel - drivers/regulator/max20086-regulator.c:288:34: warning: unused variable 'max20086_dt

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Date:   Wed, 12 Jan 2022 23:18:58 +0800
From:   kernel test robot <lkp@...el.com>
To:     Watson Chow <watson.chow@...et.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: drivers/regulator/max20086-regulator.c:288:34: warning: unused
 variable 'max20086_dt_ids'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   daadb3bd0e8d3e317e36bc2c1542e86c528665e5
commit: bfff546aae50ae68ed395bf0e0848188d27b0ba3 regulator: Add MAX20086-MAX20089 driver
date:   5 days ago
config: mips-buildonly-randconfig-r004-20220112 (https://download.01.org/0day-ci/archive/20220112/202201122312.qsMgLJU3-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 244dd2913a43a200f5a6544d424cdc37b771028b)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install mips cross compiling tool for clang build
        # apt-get install binutils-mips-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bfff546aae50ae68ed395bf0e0848188d27b0ba3
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout bfff546aae50ae68ed395bf0e0848188d27b0ba3
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/regulator/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> drivers/regulator/max20086-regulator.c:288:34: warning: unused variable 'max20086_dt_ids' [-Wunused-const-variable]
   static const struct of_device_id max20086_dt_ids[] = {
                                    ^
   1 warning generated.


vim +/max20086_dt_ids +288 drivers/regulator/max20086-regulator.c

   287	
 > 288	static const struct of_device_id max20086_dt_ids[] = {
   289		{
   290			.compatible = "maxim,max20086",
   291			.data = &(const struct max20086_chip_info) {
   292				.id = MAX20086_DEVICE_ID_MAX20086,
   293				.num_outputs = 4,
   294			}
   295		}, {
   296			.compatible = "maxim,max20087",
   297			.data = &(const struct max20086_chip_info) {
   298				.id = MAX20086_DEVICE_ID_MAX20087,
   299				.num_outputs = 4,
   300			}
   301		}, {
   302			.compatible = "maxim,max20088",
   303			.data = &(const struct max20086_chip_info) {
   304				.id = MAX20086_DEVICE_ID_MAX20088,
   305				.num_outputs = 2,
   306			}
   307		}, {
   308			.compatible = "maxim,max20089",
   309			.data = &(const struct max20086_chip_info) {
   310				.id = MAX20086_DEVICE_ID_MAX20089,
   311				.num_outputs = 2,
   312			}
   313		},
   314		{ /* Sentinel */ },
   315	};
   316	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org