Hi Sven,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   bbf5c979011a099af5dc76498918ed7df445635b
commit: 52e8a94baf9026276fcdc9ff21a50dc2ca0bc94b ASoC: Add initial ZL38060 driver
date:   6 months ago
config: x86_64-randconfig-r001-20201012 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 9e72d3eaf38f217698f72cb8fdc969a6e72dad3a)
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=52e8a94baf9026276fcdc9ff21a50dc2ca0bc94b
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 52e8a94baf9026276fcdc9ff21a50dc2ca0bc94b
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

>> sound/soc/codecs/zl38060.c:614:34: warning: unused variable 'zl38_dt_ids' [-Wunused-const-variable]
   static const struct of_device_id zl38_dt_ids[] = {
                                    ^
   1 warning generated.

vim +/zl38_dt_ids +614 sound/soc/codecs/zl38060.c

   613	
 > 614	static const struct of_device_id zl38_dt_ids[] = {
   615		{ .compatible = "mscc,zl38060", },
   616		{ /* sentinel */ }
   617	};
   618	MODULE_DEVICE_TABLE(of, zl38_dt_ids);
   619	

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