[kbuild-all] [linux-sof-driver:pr/2515 3/5] sound/soc/sof/loader.c:814:6: warning: variable 'init_core_mask' set but not used

tree: https://github.com/thesofproject/linux pr/2515 head: f6ebe337999da298544fcce55ce23455bc2b19e0 commit: 887629dd2bee8f2f5c70ac6c4ffd5b86dbed4e01 [3/5] ASoC: SOF: update dsp core power status in common APIs config: arm64-sof-customedconfig-sof-defconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 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 # https://github.com/thesofproject/linux/commit/887629dd2bee8f2f5c70ac6c4ff... git remote add linux-sof-driver https://github.com/thesofproject/linux git fetch --no-tags linux-sof-driver pr/2515 git checkout 887629dd2bee8f2f5c70ac6c4ffd5b86dbed4e01 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 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/loader.c: In function 'snd_sof_run_firmware': 814 | int init_core_mask; | ^~~~~~~~~~~~~~ vim +/init_core_mask +814 sound/soc/sof/loader.c 70cd52544b95d02 Liam Girdwood 2019-04-12 810 70cd52544b95d02 Liam Girdwood 2019-04-12 811 int snd_sof_run_firmware(struct snd_sof_dev *sdev) 70cd52544b95d02 Liam Girdwood 2019-04-12 812 { 70cd52544b95d02 Liam Girdwood 2019-04-12 813 int ret; 70cd52544b95d02 Liam Girdwood 2019-04-12 @814 int init_core_mask; 70cd52544b95d02 Liam Girdwood 2019-04-12 815 70cd52544b95d02 Liam Girdwood 2019-04-12 816 init_waitqueue_head(&sdev->boot_wait); 70cd52544b95d02 Liam Girdwood 2019-04-12 817 5c9714f637365a8 Ranjani Sridharan 2019-06-03 818 /* create read-only fw_version debugfs to store boot version info */ 70cd52544b95d02 Liam Girdwood 2019-04-12 819 if (sdev->first_boot) { 70cd52544b95d02 Liam Girdwood 2019-04-12 820 ret = snd_sof_debugfs_buf_item(sdev, &sdev->fw_version, 70cd52544b95d02 Liam Girdwood 2019-04-12 821 sizeof(sdev->fw_version), 5c9714f637365a8 Ranjani Sridharan 2019-06-03 822 "fw_version", 0444); 70cd52544b95d02 Liam Girdwood 2019-04-12 823 /* errors are only due to memory allocation, not debugfs */ 70cd52544b95d02 Liam Girdwood 2019-04-12 824 if (ret < 0) { 70cd52544b95d02 Liam Girdwood 2019-04-12 825 dev_err(sdev->dev, "error: snd_sof_debugfs_buf_item failed\n"); 70cd52544b95d02 Liam Girdwood 2019-04-12 826 return ret; 70cd52544b95d02 Liam Girdwood 2019-04-12 827 } 70cd52544b95d02 Liam Girdwood 2019-04-12 828 } 70cd52544b95d02 Liam Girdwood 2019-04-12 829 70cd52544b95d02 Liam Girdwood 2019-04-12 830 /* perform pre fw run operations */ 70cd52544b95d02 Liam Girdwood 2019-04-12 831 ret = snd_sof_dsp_pre_fw_run(sdev); 70cd52544b95d02 Liam Girdwood 2019-04-12 832 if (ret < 0) { 70cd52544b95d02 Liam Girdwood 2019-04-12 833 dev_err(sdev->dev, "error: failed pre fw run op\n"); 70cd52544b95d02 Liam Girdwood 2019-04-12 834 return ret; 70cd52544b95d02 Liam Girdwood 2019-04-12 835 } 70cd52544b95d02 Liam Girdwood 2019-04-12 836 70cd52544b95d02 Liam Girdwood 2019-04-12 837 dev_dbg(sdev->dev, "booting DSP firmware\n"); 70cd52544b95d02 Liam Girdwood 2019-04-12 838 70cd52544b95d02 Liam Girdwood 2019-04-12 839 /* boot the firmware on the DSP */ 70cd52544b95d02 Liam Girdwood 2019-04-12 840 ret = snd_sof_dsp_run(sdev); 70cd52544b95d02 Liam Girdwood 2019-04-12 841 if (ret < 0) { 70cd52544b95d02 Liam Girdwood 2019-04-12 842 dev_err(sdev->dev, "error: failed to reset DSP\n"); 70cd52544b95d02 Liam Girdwood 2019-04-12 843 return ret; 70cd52544b95d02 Liam Girdwood 2019-04-12 844 } 70cd52544b95d02 Liam Girdwood 2019-04-12 845 70cd52544b95d02 Liam Girdwood 2019-04-12 846 init_core_mask = ret; 70cd52544b95d02 Liam Girdwood 2019-04-12 847 6ca5cecbd1c1758 Ranjani Sridharan 2019-12-17 848 /* 6ca5cecbd1c1758 Ranjani Sridharan 2019-12-17 849 * now wait for the DSP to boot. There are 3 possible outcomes: 6ca5cecbd1c1758 Ranjani Sridharan 2019-12-17 850 * 1. Boot wait times out indicating FW boot failure. 6ca5cecbd1c1758 Ranjani Sridharan 2019-12-17 851 * 2. FW boots successfully and fw_ready op succeeds. 6ca5cecbd1c1758 Ranjani Sridharan 2019-12-17 852 * 3. FW boots but fw_ready op fails. 6ca5cecbd1c1758 Ranjani Sridharan 2019-12-17 853 */ 6ca5cecbd1c1758 Ranjani Sridharan 2019-12-17 854 ret = wait_event_timeout(sdev->boot_wait, 6ca5cecbd1c1758 Ranjani Sridharan 2019-12-17 855 sdev->fw_state > SOF_FW_BOOT_IN_PROGRESS, 70cd52544b95d02 Liam Girdwood 2019-04-12 856 msecs_to_jiffies(sdev->boot_timeout)); 70cd52544b95d02 Liam Girdwood 2019-04-12 857 if (ret == 0) { 70cd52544b95d02 Liam Girdwood 2019-04-12 858 dev_err(sdev->dev, "error: firmware boot failure\n"); acfe976d3b24d9e Ranjani Sridharan 2020-10-30 859 snd_sof_dsp_dbg_dump(sdev, SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX | 9055b6e3c848e39 Ranjani Sridharan 2020-10-21 860 SOF_DBG_DUMP_TEXT | SOF_DBG_DUMP_PCI | SOF_DBG_DUMP_FORCE_ERR_LEVEL); 6ca5cecbd1c1758 Ranjani Sridharan 2019-12-17 861 sdev->fw_state = SOF_FW_BOOT_FAILED; 70cd52544b95d02 Liam Girdwood 2019-04-12 862 return -EIO; 70cd52544b95d02 Liam Girdwood 2019-04-12 863 } 70cd52544b95d02 Liam Girdwood 2019-04-12 864 6ca5cecbd1c1758 Ranjani Sridharan 2019-12-17 865 if (sdev->fw_state == SOF_FW_BOOT_COMPLETE) 904f353d0e508fb Hans de Goede 2020-04-02 866 dev_dbg(sdev->dev, "firmware boot complete\n"); 6ca5cecbd1c1758 Ranjani Sridharan 2019-12-17 867 else 6ca5cecbd1c1758 Ranjani Sridharan 2019-12-17 868 return -EIO; /* FW boots but fw_ready op failed */ 70cd52544b95d02 Liam Girdwood 2019-04-12 869 70cd52544b95d02 Liam Girdwood 2019-04-12 870 /* perform post fw run operations */ 70cd52544b95d02 Liam Girdwood 2019-04-12 871 ret = snd_sof_dsp_post_fw_run(sdev); 70cd52544b95d02 Liam Girdwood 2019-04-12 872 if (ret < 0) { 70cd52544b95d02 Liam Girdwood 2019-04-12 873 dev_err(sdev->dev, "error: failed post fw run op\n"); 70cd52544b95d02 Liam Girdwood 2019-04-12 874 return ret; 70cd52544b95d02 Liam Girdwood 2019-04-12 875 } 70cd52544b95d02 Liam Girdwood 2019-04-12 876 70cd52544b95d02 Liam Girdwood 2019-04-12 877 return 0; 70cd52544b95d02 Liam Girdwood 2019-04-12 878 } 70cd52544b95d02 Liam Girdwood 2019-04-12 879 EXPORT_SYMBOL(snd_sof_run_firmware); 70cd52544b95d02 Liam Girdwood 2019-04-12 880 :::::: The code at line 814 was first introduced by commit :::::: 70cd52544b95d02f8b20fadccb7400ce68a2cb84 ASoC: SOF: Add firmware loader support :::::: TO: Liam Girdwood <liam.r.girdwood(a)linux.intel.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