linux-kernel - sound/soc/sunxi/sun50i-dmic.c:268:34: warning: unused variable 'sun50i_dmic_of

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Date:   Wed, 12 Oct 2022 12:43:44 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ban Tao <fengzheng923@...il.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: sound/soc/sunxi/sun50i-dmic.c:268:34: warning: unused variable
 'sun50i_dmic_of_match'

Hi Ban,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   49da070062390094112b423ba443ea193527b2e4
commit: 9fc2c8ed923d8ec8a49cf5b5076c84867126ca69 ASoC: sunxi: Add Allwinner H6 Digital MIC driver
date:   3 weeks ago
config: mips-randconfig-r023-20221012
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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-mipsel-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9fc2c8ed923d8ec8a49cf5b5076c84867126ca69
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 9fc2c8ed923d8ec8a49cf5b5076c84867126ca69
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/ata/ sound/soc/sunxi/

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

All warnings (new ones prefixed by >>):

>> sound/soc/sunxi/sun50i-dmic.c:268:34: warning: unused variable 'sun50i_dmic_of_match' [-Wunused-const-variable]
   static const struct of_device_id sun50i_dmic_of_match[] = {
                                    ^
   1 warning generated.


vim +/sun50i_dmic_of_match +268 sound/soc/sunxi/sun50i-dmic.c

   267	
 > 268	static const struct of_device_id sun50i_dmic_of_match[] = {
   269		{
   270			.compatible = "allwinner,sun50i-h6-dmic",
   271		},
   272		{ /* sentinel */ }
   273	};
   274	MODULE_DEVICE_TABLE(of, sun50i_dmic_of_match);
   275	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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