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X-CSE-ConnectionGUID: +CQOYFlkRiSKmxXvVtRgJQ== X-CSE-MsgGUID: wPLDGPxWRJyXII1QWC5uTQ== X-IronPort-AV: E=McAfee;i="6800,10657,11755"; a="76814793" X-IronPort-AV: E=Sophos;i="6.23,171,1770624000"; d="scan'208";a="76814793" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Apr 2026 07:59:50 -0700 X-CSE-ConnectionGUID: T6/POKmoTVqL3ACw+pKo9w== X-CSE-MsgGUID: YPZ/hKG0SaCP7OxY4/8/OQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,171,1770624000"; d="scan'208";a="252481451" Received: from lkp-server01.sh.intel.com (HELO 6449335cace3) ([10.239.97.150]) by fmviesa001.fm.intel.com with ESMTP; 10 Apr 2026 07:59:48 -0700 Received: from kbuild by 6449335cace3 with local (Exim 4.98.2) (envelope-from ) id 1wBDKj-000000003qb-1vFF; Fri, 10 Apr 2026 14:59:45 +0000 Date: Fri, 10 Apr 2026 22:59:06 +0800 From: kernel test robot To: cros-kernel-buildreports@googlegroups.com Cc: oe-kbuild-all@lists.linux.dev Subject: [android-common:android13-5.10 2/2] include/trace/trace_events.h:27:23: warning: 'str__workqueue__trace_system_name' defined but not used Message-ID: <202604102234.WEQVJcto-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Hi Liujie, FYI, the error/warning still remains. tree: https://android.googlesource.com/kernel/common android13-5.10 head: eb6aecc316ce5257dffec033f0f6c3a75aff3774 commit: 8f3f46d77c8133ccce52e055a8b4b577699acc5f [2/2] ANDROID: vendor_hooks: Add hooks to recognize special worker thread. config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20260410/202604102234.WEQVJcto-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 15.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260410/202604102234.WEQVJcto-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202604102234.WEQVJcto-lkp@intel.com/ All warnings (new ones prefixed by >>): | ^~~~~ include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 33 | static const char TRACE_SYSTEM_STRING[] = \ | ^~~~~~~~~~~~~~~~~~~ include/trace/trace_events.h:36:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR' 36 | TRACE_MAKE_SYSTEM_STR(); | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from include/trace/hooks/module.h:25, from drivers/android/vendor_hooks.c:48: include/trace/trace_events.h:27:23: warning: 'str__module__trace_system_name' defined but not used [-Wunused-const-variable=] 27 | #define __app__(x, y) str__##x##y | ^~~~~ include/trace/trace_events.h:28:21: note: in expansion of macro '__app__' 28 | #define __app(x, y) __app__(x, y) | ^~~~~~~ include/trace/trace_events.h:30:29: note: in expansion of macro '__app' 30 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) | ^~~~~ include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 33 | static const char TRACE_SYSTEM_STRING[] = \ | ^~~~~~~~~~~~~~~~~~~ include/trace/trace_events.h:36:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR' 36 | TRACE_MAKE_SYSTEM_STR(); | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from include/trace/hooks/creds.h:34, from drivers/android/vendor_hooks.c:47: include/trace/trace_events.h:27:23: warning: 'str__creds__trace_system_name' defined but not used [-Wunused-const-variable=] 27 | #define __app__(x, y) str__##x##y | ^~~~~ include/trace/trace_events.h:28:21: note: in expansion of macro '__app__' 28 | #define __app(x, y) __app__(x, y) | ^~~~~~~ include/trace/trace_events.h:30:29: note: in expansion of macro '__app' 30 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) | ^~~~~ include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 33 | static const char TRACE_SYSTEM_STRING[] = \ | ^~~~~~~~~~~~~~~~~~~ include/trace/trace_events.h:36:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR' 36 | TRACE_MAKE_SYSTEM_STR(); | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from include/trace/hooks/avc.h:33, from drivers/android/vendor_hooks.c:46: include/trace/trace_events.h:27:23: warning: 'str__avc__trace_system_name' defined but not used [-Wunused-const-variable=] 27 | #define __app__(x, y) str__##x##y | ^~~~~ include/trace/trace_events.h:28:21: note: in expansion of macro '__app__' 28 | #define __app(x, y) __app__(x, y) | ^~~~~~~ include/trace/trace_events.h:30:29: note: in expansion of macro '__app' 30 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) | ^~~~~ include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 33 | static const char TRACE_SYSTEM_STRING[] = \ | ^~~~~~~~~~~~~~~~~~~ include/trace/trace_events.h:36:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR' 36 | TRACE_MAKE_SYSTEM_STR(); | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from include/trace/hooks/traps.h:32, from drivers/android/vendor_hooks.c:45: include/trace/trace_events.h:27:23: warning: 'str__traps__trace_system_name' defined but not used [-Wunused-const-variable=] 27 | #define __app__(x, y) str__##x##y | ^~~~~ include/trace/trace_events.h:28:21: note: in expansion of macro '__app__' 28 | #define __app(x, y) __app__(x, y) | ^~~~~~~ include/trace/trace_events.h:30:29: note: in expansion of macro '__app' 30 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) | ^~~~~ include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 33 | static const char TRACE_SYSTEM_STRING[] = \ | ^~~~~~~~~~~~~~~~~~~ include/trace/trace_events.h:36:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR' 36 | TRACE_MAKE_SYSTEM_STR(); | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from include/trace/hooks/sys.h:17, from drivers/android/vendor_hooks.c:44: include/trace/trace_events.h:27:23: warning: 'str__sys__trace_system_name' defined but not used [-Wunused-const-variable=] 27 | #define __app__(x, y) str__##x##y | ^~~~~ include/trace/trace_events.h:28:21: note: in expansion of macro '__app__' 28 | #define __app(x, y) __app__(x, y) | ^~~~~~~ include/trace/trace_events.h:30:29: note: in expansion of macro '__app' 30 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) | ^~~~~ include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 33 | static const char TRACE_SYSTEM_STRING[] = \ | ^~~~~~~~~~~~~~~~~~~ include/trace/trace_events.h:36:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR' 36 | TRACE_MAKE_SYSTEM_STR(); | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from include/trace/hooks/workqueue.h:22, from drivers/android/vendor_hooks.c:43: >> include/trace/trace_events.h:27:23: warning: 'str__workqueue__trace_system_name' defined but not used [-Wunused-const-variable=] 27 | #define __app__(x, y) str__##x##y | ^~~~~ include/trace/trace_events.h:28:21: note: in expansion of macro '__app__' 28 | #define __app(x, y) __app__(x, y) | ^~~~~~~ include/trace/trace_events.h:30:29: note: in expansion of macro '__app' 30 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) | ^~~~~ include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 33 | static const char TRACE_SYSTEM_STRING[] = \ | ^~~~~~~~~~~~~~~~~~~ include/trace/trace_events.h:36:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR' 36 | TRACE_MAKE_SYSTEM_STR(); | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from include/trace/hooks/cgroup.h:17, from drivers/android/vendor_hooks.c:42: include/trace/trace_events.h:27:23: warning: 'str__cgroup__trace_system_name' defined but not used [-Wunused-const-variable=] 27 | #define __app__(x, y) str__##x##y | ^~~~~ include/trace/trace_events.h:28:21: note: in expansion of macro '__app__' 28 | #define __app(x, y) __app__(x, y) | ^~~~~~~ include/trace/trace_events.h:30:29: note: in expansion of macro '__app' 30 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) | ^~~~~ include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 33 | static const char TRACE_SYSTEM_STRING[] = \ | ^~~~~~~~~~~~~~~~~~~ include/trace/trace_events.h:36:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR' 36 | TRACE_MAKE_SYSTEM_STR(); | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from include/trace/hooks/ufshcd.h:60, from drivers/android/vendor_hooks.c:41: include/trace/trace_events.h:27:23: warning: 'str__ufshcd__trace_system_name' defined but not used [-Wunused-const-variable=] 27 | #define __app__(x, y) str__##x##y | ^~~~~ include/trace/trace_events.h:28:21: note: in expansion of macro '__app__' 28 | #define __app(x, y) __app__(x, y) | ^~~~~~~ include/trace/trace_events.h:30:29: note: in expansion of macro '__app' 30 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) | ^~~~~ include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 33 | static const char TRACE_SYSTEM_STRING[] = \ | ^~~~~~~~~~~~~~~~~~~ include/trace/trace_events.h:36:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR' 36 | TRACE_MAKE_SYSTEM_STR(); | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from include/trace/hooks/thermal.h:19, from drivers/android/vendor_hooks.c:40: include/trace/trace_events.h:27:23: warning: 'str__thermal__trace_system_name' defined but not used [-Wunused-const-variable=] 27 | #define __app__(x, y) str__##x##y | ^~~~~ include/trace/trace_events.h:28:21: note: in expansion of macro '__app__' 28 | #define __app(x, y) __app__(x, y) | ^~~~~~~ include/trace/trace_events.h:30:29: note: in expansion of macro '__app' 30 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) | ^~~~~ include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 33 | static const char TRACE_SYSTEM_STRING[] = \ | ^~~~~~~~~~~~~~~~~~~ include/trace/trace_events.h:36:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR' 36 | TRACE_MAKE_SYSTEM_STR(); | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from include/trace/hooks/iommu.h:30, from drivers/android/vendor_hooks.c:39: include/trace/trace_events.h:27:23: warning: 'str__iommu__trace_system_name' defined but not used [-Wunused-const-variable=] 27 | #define __app__(x, y) str__##x##y | ^~~~~ include/trace/trace_events.h:28:21: note: in expansion of macro '__app__' 28 | #define __app(x, y) __app__(x, y) | ^~~~~~~ include/trace/trace_events.h:30:29: note: in expansion of macro '__app' 30 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) | ^~~~~ include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 33 | static const char TRACE_SYSTEM_STRING[] = \ | ^~~~~~~~~~~~~~~~~~~ include/trace/trace_events.h:36:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR' 36 | TRACE_MAKE_SYSTEM_STR(); | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/trace/define_trace.h:102, from include/trace/hooks/fault.h:36, from drivers/android/vendor_hooks.c:38: include/trace/trace_events.h:27:23: warning: 'str__fault__trace_system_name' defined but not used [-Wunused-const-variable=] 27 | #define __app__(x, y) str__##x##y | ^~~~~ include/trace/trace_events.h:28:21: note: in expansion of macro '__app__' 28 | #define __app(x, y) __app__(x, y) | ^~~~~~~ include/trace/trace_events.h:30:29: note: in expansion of macro '__app' 30 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) | ^~~~~ include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 33 | static const char TRACE_SYSTEM_STRING[] = \ vim +/str__workqueue__trace_system_name +27 include/trace/trace_events.h acd388fd3af350a include/trace/ftrace.h Steven Rostedt (Red Hat 2015-03-31 26) acd388fd3af350a include/trace/ftrace.h Steven Rostedt (Red Hat 2015-03-31 @27) #define __app__(x, y) str__##x##y acd388fd3af350a include/trace/ftrace.h Steven Rostedt (Red Hat 2015-03-31 28) #define __app(x, y) __app__(x, y) acd388fd3af350a include/trace/ftrace.h Steven Rostedt (Red Hat 2015-03-31 29) :::::: The code at line 27 was first introduced by commit :::::: acd388fd3af350ab24c6ab6f19b83fc4a4f3aa60 tracing: Give system name a pointer :::::: TO: Steven Rostedt (Red Hat) :::::: CC: Steven Rostedt -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki