From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (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 660CB3BE646; Sun, 16 Aug 2026 22:11:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786918296; cv=none; b=vCOpq6/gD5JwsXDotzRdPNVXw7eDBRbee3e2FsdNQfiWR/ew7LljFq/Biwpw6orC5U9pgUw8o4xPUNECXNRTP4MEOTshNF3YEb0i2UE/+l1v5LwlrbUZUfA+L7C+Ynyy8gKq425BH7nDV/znLimRzV2kDlPna1bM5//sV99y8kI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786918296; c=relaxed/simple; bh=BetprM0RdBz9U2XhwsqIZQvo/uqW/2vTiRA6sJXlsic=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=KhQ8tyXMxrg2gGkWk/KmYl16HrGIoRqQL9ygoepSdab8dQMPidnxHYzeTCazxSAUj5zcC6Td8EpEbg0L/00MxVIsORyMt0MVqi7adkAFrTzxdeYwi+vxo87nR/mg3wtQgq7TyoKMgVeD5CIzUrF12XesKV2UR+rQvXKTLQyuanU= 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=Emtxjdo9; arc=none smtp.client-ip=192.198.163.13 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="Emtxjdo9" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1786918293; x=1818454293; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=BetprM0RdBz9U2XhwsqIZQvo/uqW/2vTiRA6sJXlsic=; b=Emtxjdo911R/uAg1fHyTXxL1H6OIFPl6n9BNzKq4nKMVgI4DGNbqtFSC WDlve9FP7I1DkhLXaOPqIi0Pbjs+K03iM1LD5eHxUQMB24MksavLQXZSd z+nhxALPreSFpH+lNZ4s9C20GZE/6Qgr+bG/1A7AdnYv3uxOWCU5HnNLn WnlEt5RZMSi4fJJMtVnP6T3wGZBhqOL1GqDlmma96gQGuYxVkUAH1oL3x r6uzSpl+KNnUgYF0FUuR3ssRnkHznazBECyBDERhzlRcZfZBJVRnRi/Rq +W7rCd1Y+BpVRqjFvlTZiBCv/G/UCAafGK4JTUZFFUqb4j4lQuKUjxH7k A==; X-CSE-ConnectionGUID: IyrLZc82RgO6lpwvBwcVjQ== X-CSE-MsgGUID: aD9dNEfASfKPJ7uxVpxHeg== X-IronPort-AV: E=McAfee;i="6800,10657,11877"; a="89915458" X-IronPort-AV: E=Sophos;i="6.25,227,1779174000"; d="scan'208";a="89915458" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Aug 2026 15:11:33 -0700 X-CSE-ConnectionGUID: bY3ozt2VS+uJOiiRoOwL0Q== X-CSE-MsgGUID: 9R/KWFVPQSK71mWWEsbOZQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,227,1779174000"; d="scan'208";a="263415551" Received: from lkp-server01.sh.intel.com (HELO 6eda058d650d) ([10.239.97.150]) by orviesa010.jf.intel.com with ESMTP; 16 Aug 2026 15:11:30 -0700 Received: from kbuild by 6eda058d650d with local (Exim 4.98.2) (envelope-from ) id 1wvj4g-00000000d7m-3x14; Sun, 16 Aug 2026 22:11:26 +0000 Date: Mon, 17 Aug 2026 06:10:52 +0800 From: kernel test robot To: Woradorn Laodhanadhaworn , rostedt@goodmis.org Cc: oe-kbuild-all@lists.linux.dev, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, linux-kernel-mentees@lists.linux.dev, shuah@kernel.org, skhan@linuxfoundation.org, me@brighamcampbell.com, jkoolstra@xs4all.nl, woradorn.laon@gmail.com Subject: Re: [PATCH v2] tracing: Use seq_buf for string concatenation Message-ID: <202608170556.RyB6XrT0-lkp@intel.com> References: <20260622094623.18469-1-woradorn.laon@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel-mentees@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260622094623.18469-1-woradorn.laon@gmail.com> Hi Woradorn, kernel test robot noticed the following build warnings: [auto build test WARNING on v7.2-rc7] [also build test WARNING on linus/master] [cannot apply to linux-review/Woradorn-Laodhanadhaworn/tracing-Use-seq_buf-for-string-concatenation/20260813-224524 trace/for-next next-20260814] [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/Woradorn-Laodhanadhaworn/tracing-Use-seq_buf-for-string-concatenation/20260815-195403 base: v7.2-rc7 patch link: https://lore.kernel.org/r/20260622094623.18469-1-woradorn.laon%40gmail.com patch subject: [PATCH v2] tracing: Use seq_buf for string concatenation config: hexagon-randconfig-r123-20260816 (https://download.01.org/0day-ci/archive/20260817/202608170556.RyB6XrT0-lkp@intel.com/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260817/202608170556.RyB6XrT0-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/202608170556.RyB6XrT0-lkp@intel.com/ All warnings (new ones prefixed by >>, old ones prefixed by <<): >> WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x4 (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x8 (section: .text) -> bootup_event_buf (section: .init.data) >> WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0xe0 (section: .text) -> __TRACE_SYSTEM_ERROR_DETECTOR_KFENCE (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0xe4 (section: .text) -> __TRACE_SYSTEM_ERROR_DETECTOR_KFENCE (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0xfc (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x100 (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x1cc (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x1d0 (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x1f4 (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x1f8 (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x228 (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x22c (section: .text) -> bootup_event_buf (section: .init.data) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki