[kbuild-all] [chrome-os:chromeos-5.4 73/74] sound/soc/sof/intel/cnl.c:169:26: warning: variable 'hdr' set but not used

tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.4 head: 73cdf293503d84ee122c0d7e360c5eb0d594c051 commit: dc8070310769ab1bb78dc66a1f7435fd64dc39ca [73/74] CHROMIUM: WA: ASoC: SOF: Intel: Do not enable D0i3 work config: x86_64-randconfig-a013-20210718 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 5d5b08761f944d5b9822d582378333cc4b36a0a7) 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 remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-5.4 git checkout dc8070310769ab1bb78dc66a1f7435fd64dc39ca # 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 >>): sound/soc/sof/intel/cnl.c:168:28: warning: unused variable 'hdev' [-Wunused-variable] struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata; ^ struct sof_ipc_cmd_hdr *hdr; ^ 2 warnings generated. -- struct sof_ipc_cmd_hdr *hdr; ^ sound/soc/sof/intel/cnl.c:168:28: warning: unused variable 'hdev' [-Wunused-variable] struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata; ^ 2 warnings generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for SOUNDWIRE_INTEL Depends on SOUNDWIRE && ACPI && SND_SOC Selected by - SND_SOC_SOF_INTEL_SOUNDWIRE && SOUND && !UML && SND && SND_SOC && SND_SOC_SOF_TOPLEVEL && SND_SOC_SOF_INTEL_TOPLEVEL && SND_SOC_SOF_INTEL_PCI vim +/hdr +169 sound/soc/sof/intel/cnl.c 186198347be755 Keyon Jie 2019-10-25 165 47bf66a5e72ba1 Ranjani Sridharan 2020-08-26 166 int cnl_ipc_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) 273020522ef623 Liam Girdwood 2019-04-12 167 { 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 168 struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata; 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 @169 struct sof_ipc_cmd_hdr *hdr; 186198347be755 Keyon Jie 2019-10-25 170 u32 dr = 0; 186198347be755 Keyon Jie 2019-10-25 171 u32 dd = 0; 186198347be755 Keyon Jie 2019-10-25 172 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 173 /* 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 174 * Currently the only compact IPC supported is the PM_GATE 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 175 * IPC which is used for transitioning the DSP between the 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 176 * D0I0 and D0I3 states. And these are sent only during the 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 177 * set_power_state() op. Therefore, there will never be a case 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 178 * that a compact IPC results in the DSP exiting D0I3 without 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 179 * the host and FW being in sync. 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 180 */ 186198347be755 Keyon Jie 2019-10-25 181 if (cnl_compact_ipc_compress(msg, &dr, &dd)) { 186198347be755 Keyon Jie 2019-10-25 182 /* send the message via IPC registers */ 186198347be755 Keyon Jie 2019-10-25 183 snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDD, 186198347be755 Keyon Jie 2019-10-25 184 dd); 186198347be755 Keyon Jie 2019-10-25 185 snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR, 186198347be755 Keyon Jie 2019-10-25 186 CNL_DSP_REG_HIPCIDR_BUSY | dr); 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 187 return 0; 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 188 } 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 189 186198347be755 Keyon Jie 2019-10-25 190 /* send the message via mailbox */ 273020522ef623 Liam Girdwood 2019-04-12 191 sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data, 273020522ef623 Liam Girdwood 2019-04-12 192 msg->msg_size); 273020522ef623 Liam Girdwood 2019-04-12 193 snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR, 6fbbc18ead0f4f Daniel Baluta 2019-06-03 194 CNL_DSP_REG_HIPCIDR_BUSY); 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 195 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 196 hdr = msg->msg_data; 35bc77bfc585f8 Ranjani Sridharan 2020-01-29 197 273020522ef623 Liam Girdwood 2019-04-12 198 return 0; 273020522ef623 Liam Girdwood 2019-04-12 199 } 273020522ef623 Liam Girdwood 2019-04-12 200 :::::: The code at line 169 was first introduced by commit :::::: 35bc77bfc585f82e90c52e6d1dccef301035ecb5 FROMGIT: ASoC: SOF: Intel: cnl: Implement feature to support DSP D0i3 in S0 :::::: TO: Ranjani Sridharan <ranjani.sridharan(a)linux.intel.com&gt; :::::: CC: Commit Bot <commit-bot(a)chromium.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org