Hi jiebing, kernel test robot noticed the following build warnings: [auto build test WARNING on 6ecd20965bdc21b265a0671ccf36d9ad8043f5ab] url: https://github.com/intel-lab-lkp/linux/commits/jiebing-chen-via-B4-Relay/ASoC-dt-bindings-Add-Amlogic-S4-audio/20250113-143911 base: 6ecd20965bdc21b265a0671ccf36d9ad8043f5ab patch link: https://lore.kernel.org/r/20250113-audio_drvier-v1-2-8c14770f38a0%40amlogic.com patch subject: [PATCH 2/3] ASoC: meson: s4:support for the on-chip audio config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20250114/202501141658.tM15P1iG-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250114/202501141658.tM15P1iG-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202501141658.tM15P1iG-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): sound/soc/meson/s4-tocodec-control.c: In function 'aml_tocodec_sel_set': >> sound/soc/meson/s4-tocodec-control.c:151:15: warning: unused variable 'clk_name' [-Wunused-variable] 151 | char *clk_name; | ^~~~~~~~ vim +/clk_name +151 sound/soc/meson/s4-tocodec-control.c 137 138 static int aml_tocodec_sel_set(struct snd_soc_dapm_widget *w) 139 { 140 struct snd_soc_dai *be; 141 struct axg_tdm_stream *stream; 142 struct axg_tdm_iface *iface; 143 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 144 struct toacodec *priv = snd_soc_component_get_drvdata(component); 145 unsigned int tdm_id = TDM_A_PAD; 146 const char *dai_widget_name; 147 struct snd_soc_dapm_path *p; 148 unsigned int lane = 0; 149 unsigned int val = 0; 150 struct clk *sclk, *mclk; > 151 char *clk_name; 152 int mclk_id, sclk_id; 153 154 be = tocodec_tdm_get_ahead_be(w); 155 if (!be) { 156 dev_err(component->dev, "%s not find the be\n", __func__); 157 return -EINVAL; 158 } 159 stream = snd_soc_dai_dma_data_get_playback(be); 160 if (!stream) { 161 dev_err(component->dev, "%s not find the stream\n", __func__); 162 return -EINVAL; 163 } 164 /*we like to use dai id, but it is fixed val*/ 165 dai_widget_name = be->stream[SNDRV_PCM_STREAM_PLAYBACK].widget->name; 166 if (strstr(dai_widget_name, "TDM_A")) 167 tdm_id = TDM_A_PAD; 168 else if (strstr(dai_widget_name, "TDM_B")) 169 tdm_id = TDM_B_PAD; 170 else if (strstr(dai_widget_name, "TDM_C")) 171 tdm_id = TDM_C_PAD; 172 snd_soc_dapm_widget_for_each_source_path(w, p) { 173 if (p->connect && p->name) { 174 lane = aml_simple_strtoull(p->name); 175 val = lane + tdm_id * S4_LANE_OFFSET; 176 regmap_field_write(priv->field_dat_sel, val); 177 } 178 } 179 iface = stream->iface; 180 mclk = iface->mclk; 181 sclk = iface->sclk; 182 mclk_id = aml_get_clk_id(__clk_get_name(mclk)); 183 sclk_id = aml_get_clk_id(__clk_get_name(sclk)); 184 regmap_field_write(priv->field_mclk_sel, mclk_id); 185 regmap_field_write(priv->field_bclk_sel, sclk_id); 186 regmap_field_write(priv->field_lrclk_sel, sclk_id); 187 188 return 0; 189 } 190 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki