From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=198.175.65.21 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792443503; b=BmR4A+kxhmJhcR4X2JNYaDXltE/GyA+SLQuiqT2UcQArVbh+f4Am1xr07wsiYbEJ2/BS 8bg6eDv5IrNqJSeYIqzaCWzpJxZmxEwt8dNzBao8TAcQfX2tpE9k3unq9WzmcPOYN82Bz +b/kdQ+acw8g6TMTq6msDUThxVHV42VPgbW5FXP1CV/hK57bTOLrzjlhtExoLrAMgZPta qFx1qsrziXoLFe92eJFfnrU3ssCs/D99K/fnOzZViLx1wjfI7kS5OFc98TP47cYImaM47 q2gPkkqDsX+JFVgQ6RimBZb8wKugt4s6TDoVG2/boYEcs0e1Rnfi+k8iUcAggLpQlOg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792443503; h=DMARC-Filter:DKIM-Signature:X-CSE-ConnectionGUID:X-CSE-MsgGUID: X-IronPort-AV:X-IronPort-AV:Received:X-CSE-ConnectionGUID: X-CSE-MsgGUID:X-ExtLoop1:X-IronPort-AV:Received:Received:Date:From:To: Cc:Subject:Message-ID:References:MIME-Version:Content-Type: Content-Disposition:In-Reply-To; bh=etQvNscIjqvkrWpefPH+Ohc94n3wsi43ZWyZPkQfApQ=; b=EFf6OBBHKSlnsXU1eXnLPB0f0+UREOKH5grNMT48r8DvbvsmtKuONmwhW+sa372sInuv wPmH509OizHJ8o/SK1PA3B0W9qo45znZvCA/K8TTIDGMx6tUD1D3hHO3wXXbs3XZStQBf VA/wH54SzCxURqzBMMV3qukr0NfYBf90KrVIf7dhqUSFvhwyESN5JQchYP4o49vnYkiSh JLQSh/7fBjCRGj4r8suyEwqbF8sk4Q2BdeIgXPNm8zpUVf/CzTJ4w8yTA0QAy440GJyKU VG7yuqGfs+GaNnZfhzDSumBQfWSso+XpffPebcRdfsLe7dvI4G6jJEOgjwmZD3SuNPQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b="MQJP/Zeq"; arc=none smtp.remote-ip=198.175.65.21 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AD2D6606A31C; Mon, 19 Oct 2026 20:58:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org AD2D6606A31C 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, unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=MQJP/Zeq DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1792443503; x=1823979503; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=LjZKwGBbVcACOcsPvYU618VBeMr1LoG3ldjZ3OGSp3Q=; b=MQJP/ZeqaCS9Hl76Rfka6j/Fyty9PVAXaYJuFhaL+ujI1YEvAoTgtqbi xYeK4Qe+kVYy8C9eAIBUuld7ggPEqP4uQeYCSt9CAogVx6ZT8vPGwylx0 ZXYdXSaHaO1zoxSw6me+mPJOEexthNvdGh95al4OM8hxedUa9CZ9W/rvK 9a0cdgx+58RLW9rxlHlUhSF6VHq6uUCWS/dYOMWsXwx9ZpOKOVHbT1Pn1 ZpfSg/AGa5vpwSy2ZRKBKWyrnyvYRIF4vQuR2QIbSDDuFz3KGD1Eg6wlO OxiqNQlaNICcZL4BMYycn6v16HTfEXYmbqSkyAL/Aoz7AL0BUON9jCFwR Q==; X-CSE-ConnectionGUID: fB5ojh34QqOsDsNQj9VOTg== X-CSE-MsgGUID: 1vi/ZCdZQUK/7AR80u5JQw== X-IronPort-AV: E=McAfee;i="6800,10657,11940"; a="1240717" X-IronPort-AV: E=Sophos;i="6.27,168,1787036400"; d="scan'208";a="1240717" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Oct 2026 13:58:22 -0700 X-CSE-ConnectionGUID: l4uSqfeCQheS9pa1UzaC7Q== X-CSE-MsgGUID: pxRj+kMZRlaHxvrp1glKuQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,168,1787036400"; d="scan'208";a="2943062" Received: from lkp-server01.sh.intel.com (HELO 0caa9d2d175c) ([10.239.97.150]) by fmviesa001.fm.intel.com with ESMTP; 19 Oct 2026 13:58:18 -0700 Received: from kbuild by 0caa9d2d175c with local (Exim 4.98.2) (envelope-from ) id 1xIuQx-00000000MO2-3Cks; Mon, 19 Oct 2026 20:58:15 +0000 Date: Tue, 20 Oct 2026 04:57:54 +0800 From: kernel test robot To: David Laight , Andrew Morton , Petr Mladek , Kees Cook , linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, bpf@vger.kernel.org, Jim Cromie , Lorenzo Stoakes Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List , Luis Chamberlain , Andrey Grodzovsky , Steven Rostedt Subject: Re: [PATCH v2 next 03/15] kallsyms: Improve selftest test_perf_kallsyms_lookup_name() output Message-ID: <202610200434.qSHPOyDo-lkp@intel.com> References: <20261018155206.132411-4-david.laight.linux@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261018155206.132411-4-david.laight.linux@gmail.com> Hi David, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on linus/master v7.3] [cannot apply to next-20261016 next-20261016] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/David-Laight/kallsyms-scripts-kallsyms-c-Avoid-overrunning-on-stack-buffer/20261018-165152 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20261018155206.132411-4-david.laight.linux%40gmail.com patch subject: [PATCH v2 next 03/15] kallsyms: Improve selftest test_perf_kallsyms_lookup_name() output config: arm64-randconfig-1000-20261019 (https://download.01.org/0day-ci/archive/20261020/202610200434.qSHPOyDo-lkp@intel.com/config) compiler: clang version 21.1.8 (https://github.com/llvm/llvm-project 2078da43e25a4623cab2d0d60decddf709aaea28) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261020/202610200434.qSHPOyDo-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/202610200434.qSHPOyDo-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/kallsyms_selftest.c:82:12: warning: unused variable 'The_time_has_come_the_Walrus_said_To_talk_of_many_things_Of_shoes_and_ships_and_sealing_wax_Of_cabbages_and_kings_And_why_the_sea_is_boiling_hot_And_whether_pigs_have_wings_O_Oysters_said_the_Carpenter_Youve_had_a_pleasant_run_Shall_we_be_trotting_home_again_But_answer_came_there_none_And_this_was_scarcely_odd_because_Theyd_eaten_every_one_The_moon_was_shining_sulkily_Because_she_thought_the_sun_Had_got_no_business_to_be_there_After_the_day_was_done_Its_very_rude_of_him_she_said_To_come_and_spoil_the_fun' [-Wunused-variable] 82 | static int kallsyms_very_long_name = 1; | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/kallsyms_selftest.c:69:33: note: expanded from macro 'kallsyms_very_long_name' 69 | #define kallsyms_very_long_name \ | ^ 1 warning generated. vim +/The_time_has_come_the_Walrus_said_To_talk_of_many_things_Of_shoes_and_ships_and_sealing_wax_Of_cabbages_and_kings_And_why_the_sea_is_boiling_hot_And_whether_pigs_have_wings_O_Oysters_said_the_Carpenter_Youve_had_a_pleasant_run_Shall_we_be_trotting_home_again_But_answer_came_there_none_And_this_was_scarcely_odd_because_Theyd_eaten_every_one_The_moon_was_shining_sulkily_Because_she_thought_the_sun_Had_got_no_business_to_be_there_After_the_day_was_done_Its_very_rude_of_him_she_said_To_come_and_spoil_the_fun +82 kernel/kallsyms_selftest.c 81 > 82 static int kallsyms_very_long_name = 1; 83 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki