tree: https://github.com/morimoto/linux fw-cleanup-2020-12-11-v3 head: f3cc575c07169de36c9964f4bacf1ad5caee9ff1 commit: 8ba55018968592e5b9ddc77c656463b42bd8ac5c [57/73] ASoC: add snd_soc_runtime_get_dai_fmt() config: arm-randconfig-r012-20201209 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 5ff35356f1af2bb92785b38c657463924d9ec386) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/morimoto/linux/commit/8ba55018968592e5b9ddc77c656463b4... git remote add morimoto-linux https://github.com/morimoto/linux git fetch --no-tags morimoto-linux fw-cleanup-2020-12-11-v3 git checkout 8ba55018968592e5b9ddc77c656463b42bd8ac5c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); ^ include/linux/export.h:159:33: note: expanded from macro 'EXPORT_SYMBOL_GPL' #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl") ^ include/linux/export.h:155:34: note: expanded from macro '_EXPORT_SYMBOL' #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") ^ include/linux/export.h:147:39: note: expanded from macro '__EXPORT_SYMBOL' #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns) ^ include/linux/export.h:108:2: note: expanded from macro '___EXPORT_SYMBOL' __KSYMTAB_ENTRY(sym, sec) ^ include/linux/export.h:67:36: note: expanded from macro '__KSYMTAB_ENTRY' static const struct kernel_symbol __ksymtab_##sym \ ^ <scratch space>:63:1: note: expanded from here __ksymtab_snd_soc_dai_set_fmt ^ sound/soc/soc-dai.c:154:1: note: previous definition is here EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); ^ include/linux/export.h:159:33: note: expanded from macro 'EXPORT_SYMBOL_GPL' #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl") ^ include/linux/export.h:155:34: note: expanded from macro '_EXPORT_SYMBOL' #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") ^ include/linux/export.h:147:39: note: expanded from macro '__EXPORT_SYMBOL' #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns) ^ include/linux/export.h:108:2: note: expanded from macro '___EXPORT_SYMBOL' __KSYMTAB_ENTRY(sym, sec) ^ include/linux/export.h:67:36: note: expanded from macro '__KSYMTAB_ENTRY' static const struct kernel_symbol __ksymtab_##sym \ ^ <scratch space>:52:1: note: expanded from here __ksymtab_snd_soc_dai_set_fmt ^ 1 error generated. vim +/__ksymtab_snd_soc_dai_set_fmt +173 sound/soc/soc-dai.c 8ba55018968592 Kuninori Morimoto 2020-12-08 155 06f6e1d41427f3 Kuninori Morimoto 2019-07-22 156 /** 06f6e1d41427f3 Kuninori Morimoto 2019-07-22 157 * snd_soc_dai_set_fmt - configure DAI hardware audio format. 06f6e1d41427f3 Kuninori Morimoto 2019-07-22 158 * @dai: DAI 06f6e1d41427f3 Kuninori Morimoto 2019-07-22 159 * @fmt: SND_SOC_DAIFMT_* format value. 06f6e1d41427f3 Kuninori Morimoto 2019-07-22 160 * 06f6e1d41427f3 Kuninori Morimoto 2019-07-22 161 * Configures the DAI hardware format and clocking. 06f6e1d41427f3 Kuninori Morimoto 2019-07-22 162 */ 06f6e1d41427f3 Kuninori Morimoto 2019-07-22 163 int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) 06f6e1d41427f3 Kuninori Morimoto 2019-07-22 164 { aa7b8230d4c3d0 Kuninori Morimoto 2020-04-24 165 int ret = -ENOTSUPP; aa7b8230d4c3d0 Kuninori Morimoto 2020-04-24 166 479914ed779d40 Kuninori Morimoto 2020-04-24 167 if (dai->driver->ops && 479914ed779d40 Kuninori Morimoto 2020-04-24 168 dai->driver->ops->set_fmt) aa7b8230d4c3d0 Kuninori Morimoto 2020-04-24 169 ret = dai->driver->ops->set_fmt(dai, fmt); aa7b8230d4c3d0 Kuninori Morimoto 2020-04-24 170 aa7b8230d4c3d0 Kuninori Morimoto 2020-04-24 171 return soc_dai_ret(dai, ret); 06f6e1d41427f3 Kuninori Morimoto 2019-07-22 172 } 06f6e1d41427f3 Kuninori Morimoto 2019-07-22 @173 EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); 06f6e1d41427f3 Kuninori Morimoto 2019-07-22 174 :::::: The code at line 173 was first introduced by commit :::::: 06f6e1d41427f394ad3f67ecf06efcd28a46932c ASoC: add soc-dai.c :::::: TO: Kuninori Morimoto <kuninori.morimoto.gx(a)renesas.com&gt; :::::: CC: Mark Brown <broonie(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org