tree: https://android.googlesource.com/kernel/common android-4.19 head: 723feab600f71b3104a10de5b372bd1d9adf5943 commit: 723feab600f71b3104a10de5b372bd1d9adf5943 [1/1] ANDROID: GKI: QoS: Enhance framework to support cpu/irq specific QoS requests config: x86_64-randconfig-a012-20200719 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 8ed021382e6b1d00bf907ac595b5493a02355c2c) 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 git checkout 723feab600f71b3104a10de5b372bd1d9adf5943 # 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(a)intel.com&gt; All warnings (new ones prefixed by >>): static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, ^ 1 warning generated. vim +/snd_soc_dai_link_event +3676 sound/soc/soc-dapm.c 4ba1327ab8ce17 Mark Brown 2008-05-13 3675 c74184ed30ecce Mark Brown 2012-04-04 @3676 static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, c74184ed30ecce Mark Brown 2012-04-04 3677 struct snd_kcontrol *kcontrol, int event) c74184ed30ecce Mark Brown 2012-04-04 3678 { c74184ed30ecce Mark Brown 2012-04-04 3679 struct snd_soc_dapm_path *source_p, *sink_p; c74184ed30ecce Mark Brown 2012-04-04 3680 struct snd_soc_dai *source, *sink; 249dc49576fc95 Charles Keepax 2018-08-15 3681 struct snd_soc_pcm_runtime *rtd = w->priv; c66150824b8a80 Nikesh Oswal 2015-02-02 3682 const struct snd_soc_pcm_stream *config = w->params + w->params_select; c74184ed30ecce Mark Brown 2012-04-04 3683 struct snd_pcm_substream substream; 9747cec21e2d55 Mark Brown 2012-04-26 3684 struct snd_pcm_hw_params *params = NULL; 8053f21675b073 Nicolin Chen 2016-07-26 3685 struct snd_pcm_runtime *runtime = NULL; 3ba66feb59810e Takashi Iwai 2018-07-25 3686 unsigned int fmt; 0376916b7b2cff Charles Keepax 2018-09-06 3687 int ret = 0; c74184ed30ecce Mark Brown 2012-04-04 3688 bf4edea863c435 Takashi Iwai 2013-11-07 3689 if (WARN_ON(!config) || a3423b02cf745c Lars-Peter Clausen 2015-08-11 3690 WARN_ON(list_empty(&w->edges[SND_SOC_DAPM_DIR_OUT]) || a3423b02cf745c Lars-Peter Clausen 2015-08-11 3691 list_empty(&w->edges[SND_SOC_DAPM_DIR_IN]))) bf4edea863c435 Takashi Iwai 2013-11-07 3692 return -EINVAL; c74184ed30ecce Mark Brown 2012-04-04 3693 c74184ed30ecce Mark Brown 2012-04-04 3694 /* We only support a single source and sink, pick the first */ a3423b02cf745c Lars-Peter Clausen 2015-08-11 3695 source_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_OUT], a3423b02cf745c Lars-Peter Clausen 2015-08-11 3696 struct snd_soc_dapm_path, a3423b02cf745c Lars-Peter Clausen 2015-08-11 3697 list_node[SND_SOC_DAPM_DIR_OUT]); a3423b02cf745c Lars-Peter Clausen 2015-08-11 3698 sink_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_IN], a3423b02cf745c Lars-Peter Clausen 2015-08-11 3699 struct snd_soc_dapm_path, a3423b02cf745c Lars-Peter Clausen 2015-08-11 3700 list_node[SND_SOC_DAPM_DIR_IN]); c74184ed30ecce Mark Brown 2012-04-04 3701 c74184ed30ecce Mark Brown 2012-04-04 3702 source = source_p->source->priv; c74184ed30ecce Mark Brown 2012-04-04 3703 sink = sink_p->sink->priv; c74184ed30ecce Mark Brown 2012-04-04 3704 c74184ed30ecce Mark Brown 2012-04-04 3705 /* Be a little careful as we don't want to overflow the mask array */ c74184ed30ecce Mark Brown 2012-04-04 3706 if (config->formats) { c74184ed30ecce Mark Brown 2012-04-04 3707 fmt = ffs(config->formats) - 1; c74184ed30ecce Mark Brown 2012-04-04 3708 } else { 30a6a1a4eed170 Liam Girdwood 2012-11-19 3709 dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", c74184ed30ecce Mark Brown 2012-04-04 3710 config->formats); c74184ed30ecce Mark Brown 2012-04-04 3711 fmt = 0; c74184ed30ecce Mark Brown 2012-04-04 3712 } c74184ed30ecce Mark Brown 2012-04-04 3713 c74184ed30ecce Mark Brown 2012-04-04 3714 /* Currently very limited parameter selection */ 9747cec21e2d55 Mark Brown 2012-04-26 3715 params = kzalloc(sizeof(*params), GFP_KERNEL); 9747cec21e2d55 Mark Brown 2012-04-26 3716 if (!params) { 9747cec21e2d55 Mark Brown 2012-04-26 3717 ret = -ENOMEM; 9747cec21e2d55 Mark Brown 2012-04-26 3718 goto out; 9747cec21e2d55 Mark Brown 2012-04-26 3719 } 9747cec21e2d55 Mark Brown 2012-04-26 3720 snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); c74184ed30ecce Mark Brown 2012-04-04 3721 9747cec21e2d55 Mark Brown 2012-04-26 3722 hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = c74184ed30ecce Mark Brown 2012-04-04 3723 config->rate_min; 9747cec21e2d55 Mark Brown 2012-04-26 3724 hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = c74184ed30ecce Mark Brown 2012-04-04 3725 config->rate_max; c74184ed30ecce Mark Brown 2012-04-04 3726 9747cec21e2d55 Mark Brown 2012-04-26 3727 hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min c74184ed30ecce Mark Brown 2012-04-04 3728 = config->channels_min; 9747cec21e2d55 Mark Brown 2012-04-26 3729 hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max c74184ed30ecce Mark Brown 2012-04-04 3730 = config->channels_max; c74184ed30ecce Mark Brown 2012-04-04 3731 c74184ed30ecce Mark Brown 2012-04-04 3732 memset(&substream, 0, sizeof(substream)); c74184ed30ecce Mark Brown 2012-04-04 3733 8053f21675b073 Nicolin Chen 2016-07-26 3734 /* Allocate a dummy snd_pcm_runtime for startup() and other ops() */ 8053f21675b073 Nicolin Chen 2016-07-26 3735 runtime = kzalloc(sizeof(*runtime), GFP_KERNEL); 8053f21675b073 Nicolin Chen 2016-07-26 3736 if (!runtime) { 8053f21675b073 Nicolin Chen 2016-07-26 3737 ret = -ENOMEM; 8053f21675b073 Nicolin Chen 2016-07-26 3738 goto out; 8053f21675b073 Nicolin Chen 2016-07-26 3739 } 8053f21675b073 Nicolin Chen 2016-07-26 3740 substream.runtime = runtime; 249dc49576fc95 Charles Keepax 2018-08-15 3741 substream.private_data = rtd; 8053f21675b073 Nicolin Chen 2016-07-26 3742 c74184ed30ecce Mark Brown 2012-04-04 3743 switch (event) { c74184ed30ecce Mark Brown 2012-04-04 3744 case SND_SOC_DAPM_PRE_PMU: c74184ed30ecce Mark Brown 2012-04-04 3745 substream.stream = SNDRV_PCM_STREAM_CAPTURE; 9900a4226c785d Kuninori Morimoto 2017-09-25 3746 if (source->driver->ops->startup) { 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3747 ret = source->driver->ops->startup(&substream, source); 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3748 if (ret < 0) { 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3749 dev_err(source->dev, 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3750 "ASoC: startup() failed: %d\n", ret); 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3751 goto out; 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3752 } 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3753 source->active++; 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3754 } 93e6958a3674d2 Benoit Cousson 2014-07-08 3755 ret = soc_dai_hw_params(&substream, params, source); 93e6958a3674d2 Benoit Cousson 2014-07-08 3756 if (ret < 0) 9747cec21e2d55 Mark Brown 2012-04-26 3757 goto out; c74184ed30ecce Mark Brown 2012-04-04 3758 c74184ed30ecce Mark Brown 2012-04-04 3759 substream.stream = SNDRV_PCM_STREAM_PLAYBACK; 9900a4226c785d Kuninori Morimoto 2017-09-25 3760 if (sink->driver->ops->startup) { 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3761 ret = sink->driver->ops->startup(&substream, sink); 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3762 if (ret < 0) { 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3763 dev_err(sink->dev, 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3764 "ASoC: startup() failed: %d\n", ret); 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3765 goto out; 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3766 } 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3767 sink->active++; 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3768 } 93e6958a3674d2 Benoit Cousson 2014-07-08 3769 ret = soc_dai_hw_params(&substream, params, sink); 93e6958a3674d2 Benoit Cousson 2014-07-08 3770 if (ret < 0) 9747cec21e2d55 Mark Brown 2012-04-26 3771 goto out; c74184ed30ecce Mark Brown 2012-04-04 3772 break; c74184ed30ecce Mark Brown 2012-04-04 3773 c74184ed30ecce Mark Brown 2012-04-04 3774 case SND_SOC_DAPM_POST_PMU: da18396f949eca Mark Brown 2013-02-06 3775 ret = snd_soc_dai_digital_mute(sink, 0, da18396f949eca Mark Brown 2013-02-06 3776 SNDRV_PCM_STREAM_PLAYBACK); c74184ed30ecce Mark Brown 2012-04-04 3777 if (ret != 0 && ret != -ENOTSUPP) 30a6a1a4eed170 Liam Girdwood 2012-11-19 3778 dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); 9747cec21e2d55 Mark Brown 2012-04-26 3779 ret = 0; c74184ed30ecce Mark Brown 2012-04-04 3780 break; c74184ed30ecce Mark Brown 2012-04-04 3781 c74184ed30ecce Mark Brown 2012-04-04 3782 case SND_SOC_DAPM_PRE_PMD: da18396f949eca Mark Brown 2013-02-06 3783 ret = snd_soc_dai_digital_mute(sink, 1, da18396f949eca Mark Brown 2013-02-06 3784 SNDRV_PCM_STREAM_PLAYBACK); c74184ed30ecce Mark Brown 2012-04-04 3785 if (ret != 0 && ret != -ENOTSUPP) 30a6a1a4eed170 Liam Girdwood 2012-11-19 3786 dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); 9747cec21e2d55 Mark Brown 2012-04-26 3787 ret = 0; 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3788 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3789 source->active--; 9900a4226c785d Kuninori Morimoto 2017-09-25 3790 if (source->driver->ops->shutdown) { 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3791 substream.stream = SNDRV_PCM_STREAM_CAPTURE; 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3792 source->driver->ops->shutdown(&substream, source); 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3793 } 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3794 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3795 sink->active--; 9900a4226c785d Kuninori Morimoto 2017-09-25 3796 if (sink->driver->ops->shutdown) { 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3797 substream.stream = SNDRV_PCM_STREAM_PLAYBACK; 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3798 sink->driver->ops->shutdown(&substream, sink); 9b8ef9f6b3fccc Jeeja KP 2015-10-20 3799 } c74184ed30ecce Mark Brown 2012-04-04 3800 break; c74184ed30ecce Mark Brown 2012-04-04 3801 c74184ed30ecce Mark Brown 2012-04-04 3802 default: a6ed0608bd289b Takashi Iwai 2013-11-06 3803 WARN(1, "Unknown event %d\n", event); 75881df3fd7708 Sudip Mukherjee 2015-09-10 3804 ret = -EINVAL; c74184ed30ecce Mark Brown 2012-04-04 3805 } c74184ed30ecce Mark Brown 2012-04-04 3806 9747cec21e2d55 Mark Brown 2012-04-26 3807 out: 8053f21675b073 Nicolin Chen 2016-07-26 3808 kfree(runtime); 9747cec21e2d55 Mark Brown 2012-04-26 3809 kfree(params); 9747cec21e2d55 Mark Brown 2012-04-26 3810 return ret; c74184ed30ecce Mark Brown 2012-04-04 3811 } c74184ed30ecce Mark Brown 2012-04-04 3812 :::::: The code at line 3676 was first introduced by commit :::::: c74184ed30ecce2a5e9ae9aa22cb5e3942e0c7c7 ASoC: core: Support transparent CODEC<->CODEC DAI links :::::: TO: Mark Brown <broonie(a)opensource.wolfsonmicro.com&gt; :::::: CC: Mark Brown <broonie(a)opensource.wolfsonmicro.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org