Hi Priyalee, [auto build test ERROR on platform-drivers-x86/for-next] [also build test ERROR on v4.12-rc3 next-20170531] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/priyalee-kushwaha-intel-com/intel_telemetry_debugfs-fix-oops-found-while-load-unload-module-test/20170601-083928 base: git://git.infradead.org/users/dvhart/linux-platform-drivers-x86.git for-next config: x86_64-randconfig-h0-06011226 (attached as .config) compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/platform/x86/intel_telemetry_debugfs.c: In function 'telemetry_debugfs_init': >> drivers/platform/x86/intel_telemetry_debugfs.c:963:24: error: 'pm_notifier' undeclared (first use in this function) register_pm_notifier(&pm_notifier); ^ drivers/platform/x86/intel_telemetry_debugfs.c:963:24: note: each undeclared identifier is reported only once for each function it appears in drivers/platform/x86/intel_telemetry_debugfs.c: In function 'telemetry_debugfs_exit': drivers/platform/x86/intel_telemetry_debugfs.c:1026:26: error: 'pm_notifier' undeclared (first use in this function) unregister_pm_notifier(&pm_notifier); ^ vim +/pm_notifier +963 drivers/platform/x86/intel_telemetry_debugfs.c 87bee2909 Souvik Kumar Chakravarty 2016-01-12 957 return -ENODEV; 87bee2909 Souvik Kumar Chakravarty 2016-01-12 958 87bee2909 Souvik Kumar Chakravarty 2016-01-12 959 err = telemetry_debugfs_check_evts(); 87bee2909 Souvik Kumar Chakravarty 2016-01-12 960 if (err < 0) 87bee2909 Souvik Kumar Chakravarty 2016-01-12 961 return -EINVAL; 87bee2909 Souvik Kumar Chakravarty 2016-01-12 962 87bee2909 Souvik Kumar Chakravarty 2016-01-12 @963 register_pm_notifier(&pm_notifier); 87bee2909 Souvik Kumar Chakravarty 2016-01-12 964 87bee2909 Souvik Kumar Chakravarty 2016-01-12 965 debugfs_conf->telemetry_dbg_dir = debugfs_create_dir("telemetry", NULL); 1e7e221ab Priyalee Kushwaha 2017-06-01 966 if (!debugfs_conf->telemetry_dbg_dir) { :::::: The code at line 963 was first introduced by commit :::::: 87bee290998d062937eecf40ad409480e7281b0e platform:x86: Add Intel Telemetry Debugfs interfaces :::::: TO: Souvik Kumar Chakravarty :::::: CC: Darren Hart --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation