From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8B6BAC3ABD8 for ; Sun, 18 May 2025 15:43:48 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 185E26B0082; Sun, 18 May 2025 11:43:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1357E6B0083; Sun, 18 May 2025 11:43:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id F3F396B0085; Sun, 18 May 2025 11:43:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id D68ED6B0082 for ; Sun, 18 May 2025 11:43:46 -0400 (EDT) Received: from smtpin16.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 2F2C0C148B for ; Sun, 18 May 2025 15:43:47 +0000 (UTC) X-FDA: 83456448894.16.F04C8E2 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) by imf04.hostedemail.com (Postfix) with ESMTP id 027604000C for ; Sun, 18 May 2025 15:43:44 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=nRtNbJS6; spf=pass (imf04.hostedemail.com: domain of lkp@intel.com designates 192.198.163.19 as permitted sender) smtp.mailfrom=lkp@intel.com; dmarc=pass (policy=none) header.from=intel.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1747583025; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=bDwD+31B5fMW4XiFdlDFKJvb+y42yYIlm9E1obU1Rd4=; b=jBNgwN1a2OhnlXvvdYebMv6GNtA32wimsJw7DDfQvhMZxwFPlNGIDBkfy5j2Y3joMjJunl Z2PeMfEHoGpikql6zHsYv06aafgkOg+0rRD4leG5bnVwkvWjjxEwBPMvR5Z/qyeeIAccOH 2XYLmxFPRT+f9R/sE1wJBN6EYbF4WuY= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=nRtNbJS6; spf=pass (imf04.hostedemail.com: domain of lkp@intel.com designates 192.198.163.19 as permitted sender) smtp.mailfrom=lkp@intel.com; dmarc=pass (policy=none) header.from=intel.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1747583025; a=rsa-sha256; cv=none; b=XQMTr5/rzfd7H3zp6r8M8EwVn2VwQpHlxdzw63/vfQRuD+7TfM4LcUAsnILTRta0bwtwtq qf7UMutDAQHmOQtbtTsYI3F3I1+Sc4AJB1+N3qiF443m3cTL4Rpi8Bwc+tBlgMQ94g6Fxv l2YUVayx0BY/kzuDAo89LwssuHkmQqY= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1747583025; x=1779119025; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=Rk03/9wHJIqP0wHoJDoxL0a8mbsDz8A09+IGXBT7rZQ=; b=nRtNbJS6p9w4bg+TSF3oQZ2DdI+ZYh7A1Wglz4RTmQFv/n9MRqo62PXd 9d46Dq0a5gNH6ytXEkk8Z7rEZqQrioIAaA3drflKnHvjjSgu1IVVaVpGD pADxOvtGIK6vN4tmq6u4Ddy1Ie7wc8e2A7rAI6b/G82q3fB5JQkHupdLn u+e2TcCdVi+dTIpJhaL6HW9LH7puhUoHn1J/1szxrA3h2eXSHMUNaQ8AB U+QyhNfw7ril2oZjJI3gjNOBky/TlAB57rZe5dvNHLuuBLKNpsbYYE6cD xUqsH6zJh5SgjeifCZnJkLmOCIIgda9hGRge0WYmUYYgOlm8/xxE6RzgI w==; X-CSE-ConnectionGUID: Th7+cUsOS0+JjvbvyJX2MA== X-CSE-MsgGUID: PYwOoAwyT+SyJaCyY8C0Eg== X-IronPort-AV: E=McAfee;i="6700,10204,11437"; a="48599031" X-IronPort-AV: E=Sophos;i="6.15,299,1739865600"; d="scan'208";a="48599031" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 May 2025 08:43:43 -0700 X-CSE-ConnectionGUID: 97z6snPhRNCnsC0t5fWWlA== X-CSE-MsgGUID: tdYPHyrlTyq1RBePtWnYUQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,299,1739865600"; d="scan'208";a="143933214" Received: from lkp-server01.sh.intel.com (HELO 1992f890471c) ([10.239.97.150]) by orviesa003.jf.intel.com with ESMTP; 18 May 2025 08:43:41 -0700 Received: from kbuild by 1992f890471c with local (Exim 4.96) (envelope-from ) id 1uGgAs-000Kr5-1F; Sun, 18 May 2025 15:43:38 +0000 Date: Sun, 18 May 2025 23:42:44 +0800 From: kernel test robot To: David Laight , Andrew Morton , linux-kernel@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , David Laight , u.kleine-koenig@baylibre.com, Nicolas Pitre , Oleg Nesterov , Peter Zijlstra , Biju Das Subject: Re: [PATCH v2 next 2/4] lib: mul_u64_u64_div_u64() Use BUG_ON() for divide by zero Message-ID: <202505182351.bPFZE1vO-lkp@intel.com> References: <20250518133848.5811-3-david.laight.linux@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250518133848.5811-3-david.laight.linux@gmail.com> X-Rspamd-Queue-Id: 027604000C X-Rspam-User: X-Rspamd-Server: rspam11 X-Stat-Signature: 9affbdrpuwgk3xpkaxit7rmfpstq9681 X-HE-Tag: 1747583024-6361 X-HE-Meta: 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 LElu4b7P jeN4+glPh60oZ/PtHi4rWH3zlmdds9twES3DyTUfyd/atDQtK4ET1fpjevlQfq2XUT1wzJeIeP+cZEJwiRH46P/Neud6MiWmJ2D5jEfUzYX97XNP20Vt9bz6kn93MGgaoj52aUmST62m02JKmWUQ2uoyST3kHKGNLlo2iE9/mV+5DeQvWGd2moXRoSzq3X5xYATC64DOlr04vAFcAL/O1sorZSHOJ5921JS6aurc2EcLHzkUfpkLAGbk6NCgyyd0asUQhIdZRvQ4lXeADt+41iP+TtIAsmJKOZIxOgNrV7cGoPkbaUkUBCh8EeUZmWYHdJmMCwaiP4Exi0BDofgdkaZd97nfrqLSTPeLtRKPy4ecMAK2ZLGC0j2aQM4+eDKyMjFnbCwVGQuiqdyGM+3Msf4wFiNGCP9m6VCrg0uMQwHYuGNiTVK57NNSt/8ZipNodnvc21wLkvm5c+ZoHQrtigpSDYA== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi David, kernel test robot noticed the following build errors: [auto build test ERROR on next-20250516] url: https://github.com/intel-lab-lkp/linux/commits/David-Laight/lib-mul_u64_u64_div_u64-rename-parameter-c-to-d/20250518-214037 base: next-20250516 patch link: https://lore.kernel.org/r/20250518133848.5811-3-david.laight.linux%40gmail.com patch subject: [PATCH v2 next 2/4] lib: mul_u64_u64_div_u64() Use BUG_ON() for divide by zero config: openrisc-allnoconfig (https://download.01.org/0day-ci/archive/20250518/202505182351.bPFZE1vO-lkp@intel.com/config) compiler: or1k-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250518/202505182351.bPFZE1vO-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/202505182351.bPFZE1vO-lkp@intel.com/ All errors (new ones prefixed by >>): lib/math/div64.c: In function 'mul_u64_u64_div_u64': >> lib/math/div64.c:190:9: error: implicit declaration of function 'BUG_ON' [-Wimplicit-function-declaration] 190 | BUG_ON(!d); | ^~~~~~ vim +/BUG_ON +190 lib/math/div64.c 185 186 #ifndef mul_u64_u64_div_u64 187 u64 mul_u64_u64_div_u64(u64 a, u64 b, u64 d) 188 { 189 /* Trigger exception if divisor is zero */ > 190 BUG_ON(!d); 191 192 if (ilog2(a) + ilog2(b) <= 62) 193 return div64_u64(a * b, d); 194 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki