linux-kernel - sound/soc/codecs/rt1019.c:878:34: warning: unused variable 'rt1019_of

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Date:   Wed, 5 May 2021 10:13:02 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jack Yu <jack.yu@...ltek.com>
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: sound/soc/codecs/rt1019.c:878:34: warning: unused variable
 'rt1019_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:   e4adffb8daf476a01e7b4a55f586dc8c26e81392
commit: 7ec79d3850d0cb6dc52e6aa472886ab3adf15863 ASoC: rt1019: add rt1019 amplifier driver
date:   7 weeks ago
config: x86_64-randconfig-r011-20210505 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8f5a2a5836cc8e4c1def2bdeb022e7b496623439)
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 x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7ec79d3850d0cb6dc52e6aa472886ab3adf15863
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 7ec79d3850d0cb6dc52e6aa472886ab3adf15863
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64 

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 >>):

>> sound/soc/codecs/rt1019.c:878:34: warning: unused variable 'rt1019_of_match' [-Wunused-const-variable]
   static const struct of_device_id rt1019_of_match[] = {
                                    ^
   1 warning generated.


vim +/rt1019_of_match +878 sound/soc/codecs/rt1019.c

   877	
 > 878	static const struct of_device_id rt1019_of_match[] = {
   879		{ .compatible = "realtek,rt1019", },
   880		{},
   881	};
   882	MODULE_DEVICE_TABLE(of, rt1019_of_match);
   883	

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

Download attachment ".config.gz" of type "application/gzip" (39527 bytes)