tree: https://github.com/plbossart/sound fix/more-dpcm-fixes head: daf63cf6c66926660b7ec88f6e017d97b30fc4d2 commit: daf63cf6c66926660b7ec88f6e017d97b30fc4d2 [5/5] ASoC: soc-dai: set dai_link dpcm_ flags with a helper :::::: branch date: 28 hours ago :::::: commit date: 28 hours ago config: x86_64-randconfig-s022-20200621 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-rc1-18-g27caae40-dirty git checkout daf63cf6c66926660b7ec88f6e017d97b30fc4d2 # save the attached .config to linux build tree make W=1 C=1 ARCH=x86_64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) # https://github.com/plbossart/sound/commit/daf63cf6c66926660b7ec88f6e017d9... git remote add plbossart-sound https://github.com/plbossart/sound git remote update plbossart-sound git checkout daf63cf6c66926660b7ec88f6e017d97b30fc4d2 vim +/supported +428 sound/soc/soc-dai.c 0b73ba550cdd95 Kuninori Morimoto 2020-04-24 393 daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 394 /* daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 395 * snd_soc_dai_link_set_capabilities() - set dai_link properties based on its DAIs daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 396 */ daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 397 void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link) daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 398 { daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 399 struct snd_soc_dai_link_component *cpu; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 400 struct snd_soc_dai_link_component *codec; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 401 struct snd_soc_dai *dai; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 402 bool supported[SNDRV_PCM_STREAM_LAST]; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 403 int direction; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 404 int i; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 405 daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 406 for_each_pcm_streams(direction) { daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 407 supported[direction] = true; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 408 daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 409 for_each_link_cpus(dai_link, i, cpu) { daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 410 dai = snd_soc_find_dai(cpu); daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 411 if (!dai || !snd_soc_dai_stream_valid(dai, direction)) { daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 412 supported[direction] = false; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 413 break; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 414 } daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 415 } daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 416 if (!supported[direction]) daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 417 continue; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 418 for_each_link_codecs(dai_link, i, codec) { daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 419 dai = snd_soc_find_dai(codec); daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 420 if (!dai || !snd_soc_dai_stream_valid(dai, direction)) { daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 421 supported[direction] = false; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 422 break; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 423 } daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 424 } daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 425 } daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 426 daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 427 dai_link->dpcm_playback = supported[SNDRV_PCM_STREAM_PLAYBACK]; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 @428 dai_link->dpcm_capture = supported[SNDRV_PCM_STREAM_CAPTURE]; daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 429 } daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 430 EXPORT_SYMBOL_GPL(snd_soc_dai_link_set_capabilities); daf63cf6c66926 Pierre-Louis Bossart 2020-06-16 431 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org