From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 33FF64E73CC for ; Mon, 28 Sep 2026 16:06:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790611594; cv=none; b=f4yMzjK6Gu5/S2MhzXmPF1i0k0p351ZryNT1zkLFLfD8Jy4mKRERW4ZZ0+FFdafM4ABZiNECag4h29WqxU76F/YkNfgkPNNKKH4ITd3YfH+3MRwLcn/d0wYEzhMBR2bcV1/LhMlBnNzr/Lne7ohwcb4qPw4h1t8WNYGOuFyAr1c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790611594; c=relaxed/simple; bh=XkzCNXjO0wE/wxzigH3MwtVKB/yvjMtBjzYHnyNLYAU=; h=Date:From:To:Cc:Subject:Message-ID; b=gDqVVxXwkizQyE5C7ResMVwjnM5OM4VgF2tEXChWsk+cMl+M2HZQAhPZ4K0EdTtiYn1VOlt+c4U7VXQQHZSlli4IHaK0G6vPMQv4p/Ss3ZY/i0zYSM5FZ7JyDVrIR5r639EP4TC40UnpsaRFMUp5mXUy+dCg246q1e5Aq3OrZxw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=KxhH5etD; arc=none smtp.client-ip=192.198.163.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="KxhH5etD" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1790611588; x=1822147588; h=date:from:to:cc:subject:message-id; bh=XkzCNXjO0wE/wxzigH3MwtVKB/yvjMtBjzYHnyNLYAU=; b=KxhH5etDLNEzynrSyCHHTF305dEHMxQOt9W9cDgFvD0KEIdXihxjuO69 2dYaXgV45RUj5HiNGrm9PRnMW8BC0Dq2f5DjyZLxqG8sZYOMgy/8stuus 1ZMGkFwIFQMSXNhHdILSQPpVrOimieA6FBCmnZfL73F9c6pIVxIx4gyiF baeHWt15H9TNXIwU8kZhYrGnmJqSjmVJLPna8+Q4H9ohN3PHWFnLeeGSa xToMm5rJoCHKaxHtg4ulnW3l3d1PqhVC3/rGxiskSTY+v5haBwA+QHT5k fN+2MwhOIBZrCRcgRuD+93ObVIQZmxJk0yeJPeXmtcA4gBig4oJJ7LBq7 w==; X-CSE-ConnectionGUID: JZinqusVSuCkeQSFfyncog== X-CSE-MsgGUID: T+wJjeeNT56Mqpy/99EyHQ== X-IronPort-AV: E=McAfee;i="6800,10657,11919"; a="90442081" X-IronPort-AV: E=Sophos;i="6.27,128,1787036400"; d="scan'208";a="90442081" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2026 09:06:25 -0700 X-CSE-ConnectionGUID: loOPxq5MTLKuUDJeBOMZ7A== X-CSE-MsgGUID: MgfY9LQjQFOLIdzsBx9Y4A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,128,1787036400"; d="scan'208";a="278285485" Received: from lkp-server01.sh.intel.com (HELO 462990a40a85) ([10.239.97.150]) by orviesa003.jf.intel.com with ESMTP; 28 Sep 2026 09:06:24 -0700 Received: from kbuild by 462990a40a85 with local (Exim 4.98.2) (envelope-from ) id 1xBDrx-00000000OBP-36tr; Mon, 28 Sep 2026 16:06:21 +0000 Date: Tue, 29 Sep 2026 00:05:40 +0800 From: kernel test robot To: cros-kernel-buildreports@googlegroups.com Cc: oe-kbuild-all@lists.linux.dev Subject: [android-common:android15-6.6-2026-04 2/2] include/linux/compiler.h:57:31: warning: 'tick_cpu' is used uninitialized Message-ID: <202609282355.vr6vUo32-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 Thomas, FYI, the error/warning still remains. tree: https://android.googlesource.com/kernel/common android15-6.6-2026-04 head: 96be303f915dceac57b49fb3825e6f1cb1f9ae35 commit: a94ba5ab288780f141d741107751b4866bc24be3 [2/2] BACKPORT: timekeeping: Use READ/WRITE_ONCE() for tick_do_timer_cpu config: arm64-randconfig-1002-20260928 (https://download.01.org/0day-ci/archive/20260928/202609282355.vr6vUo32-lkp@intel.com/config) compiler: aarch64-linux-gcc (GCC) 15.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260928/202609282355.vr6vUo32-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/202609282355.vr6vUo32-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from include/linux/dev_printk.h:14, from include/linux/device.h:15, from include/linux/node.h:18, from include/linux/cpu.h:17, from kernel/time/tick-sched.c:11: kernel/time/tick-sched.c: In function 'tick_sched_do_timer': >> include/linux/compiler.h:57:31: warning: 'tick_cpu' is used uninitialized [-Wuninitialized] 57 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:55:28: note: in expansion of macro '__trace_if_var' 55 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) | ^~~~~~~~~~~~~~ kernel/time/tick-sched.c:212:9: note: in expansion of macro 'if' 212 | if (tick_cpu == cpu) { | ^~ kernel/time/tick-sched.c:188:13: note: 'tick_cpu' was declared here 188 | int tick_cpu, cpu = smp_processor_id(); | ^~~~~~~~ vim +/tick_cpu +57 include/linux/compiler.h a15fd609ad53a63 Linus Torvalds 2019-03-20 56 a15fd609ad53a63 Linus Torvalds 2019-03-20 @57 #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) a15fd609ad53a63 Linus Torvalds 2019-03-20 58 :::::: The code at line 57 was first introduced by commit :::::: a15fd609ad53a631a927c6680e8fb606f42a712b tracing: Simplify "if" macro code :::::: TO: Linus Torvalds :::::: CC: Steven Rostedt (VMware) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki