Hi Kate, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 5e63226c72287bc6c6724d4fc7e157af0e3d7908 commit: 386d17b22e422da3285e33fe8dcc282f02d98178 [8586/10945] platform/x86: intel_punit_ipc: Move to intel sub-directory config: i386-buildonly-randconfig-r006-20210827 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 1076082a0d97bd5c16a25ee7cf3dbb6ee4b5a9fe) 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=386d17b22e422da3285e33fe8dcc282f02d98178 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 386d17b22e422da3285e33fe8dcc282f02d98178 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/platform/x86/intel/punit_ipc.c:311:36: warning: unused variable 'punit_ipc_acpi_ids' [-Wunused-const-variable] static const struct acpi_device_id punit_ipc_acpi_ids[] = { ^ 1 warning generated. vim +/punit_ipc_acpi_ids +311 drivers/platform/x86/intel/punit_ipc.c fdca4f16f57da7 drivers/platform/x86/intel_punit_ipc.c Qipeng Zha 2015-12-11 310 fdca4f16f57da7 drivers/platform/x86/intel_punit_ipc.c Qipeng Zha 2015-12-11 @311 static const struct acpi_device_id punit_ipc_acpi_ids[] = { fdca4f16f57da7 drivers/platform/x86/intel_punit_ipc.c Qipeng Zha 2015-12-11 312 { "INT34D4", 0 }, fdca4f16f57da7 drivers/platform/x86/intel_punit_ipc.c Qipeng Zha 2015-12-11 313 { } fdca4f16f57da7 drivers/platform/x86/intel_punit_ipc.c Qipeng Zha 2015-12-11 314 }; bc1eca606d8084 drivers/platform/x86/intel_punit_ipc.c Andy Shevchenko 2021-05-19 315 MODULE_DEVICE_TABLE(acpi, punit_ipc_acpi_ids); fdca4f16f57da7 drivers/platform/x86/intel_punit_ipc.c Qipeng Zha 2015-12-11 316 :::::: The code at line 311 was first introduced by commit :::::: fdca4f16f57da76a8e68047923588a87d1c01f0a platform:x86: add Intel P-Unit mailbox IPC driver :::::: TO: Qipeng Zha <qipeng.zha@xxxxxxxxx> :::::: CC: Darren Hart <dvhart@xxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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