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 90D1EEB64DA for ; Wed, 19 Jul 2023 05:37:30 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 982198D0041; Wed, 19 Jul 2023 01:37:29 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 931408D0012; Wed, 19 Jul 2023 01:37:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7D15E8D0041; Wed, 19 Jul 2023 01:37:29 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 6B9CB8D0012 for ; Wed, 19 Jul 2023 01:37:29 -0400 (EDT) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 2E274C0153 for ; Wed, 19 Jul 2023 05:37:29 +0000 (UTC) X-FDA: 81027253818.09.E713901 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by imf15.hostedemail.com (Postfix) with ESMTP id EDAFFA000E for ; Wed, 19 Jul 2023 05:37:26 +0000 (UTC) Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=YPYvwuWG; spf=pass (imf15.hostedemail.com: domain of lkp@intel.com designates 192.55.52.151 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=1689745047; a=rsa-sha256; cv=none; b=g3Zet3vNKz0veR+kJVyNt508UAZxKM2mPKYeLSu2y86U+rENk3mm4Mf7KQEvQVGPGbiMOA B2MhfCeQTEMuuJE4498cjnUojFrtxWWlu75Kwrf8phVUrsX+sFEZRnPy+xkiFHT9juFcrP jUn6nvVFXaYTYFCBzcxpR03e7oXn2Z8= ARC-Authentication-Results: i=1; imf15.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=YPYvwuWG; spf=pass (imf15.hostedemail.com: domain of lkp@intel.com designates 192.55.52.151 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=1689745047; 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=g3YOXnbEZFYyOQGdApXvC3MTaiPZdUCKhMJawzytxN4=; b=1Ev1gMRJ6LJSgo73nnlGhIcL7AgdQCQWiThHkq/FcmnZDAR8EIOJCpYkcr4GI3nPWd3rQI jj7XVBQIf8fHh5RcHPPNrY7DkBxmCFaWwetFjOj20T76NjuDpYrcM0Ba3aYiMAdKiFZ/P0 0AX7Gf7VUtVaTX+j80xqhsWKqYnYipA= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1689745047; x=1721281047; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=T1unG0vjvqpp3WUUzYFWk4kgYgyuCL1GBV5V1zIqMJ4=; b=YPYvwuWGwhcdx2tFOcFHjgPgv0zQIDt5mZAYnLTYkIcUmcCAXxxUcGLa 5fum9j5RjqxC/57KBZO+tZfQZh/Sy5g7WctrDTCoc9evDF1hirjDP5Lr4 5MJ+P1uNQjXQEwp+yDkysDQfKmKgojUiIcTBE4+y2TDl+Ei4ipdQbOcSw DckthBxmMT7/CDEmYxcS6MP8giWgiDEajWyoXUUbCL2wLE/pSMMeGH+Da ZS/sF+8YuFF4IOl6dWGgeuVa9lzNrWDIwzZIjqR6laLRzpfV5ZtcMRVTT pKfg3MX+F6cDMFjoKk5wZ+9TsWcTPfjYDZMRirjpMBmUn4Orr4yH2pCic g==; X-IronPort-AV: E=McAfee;i="6600,9927,10775"; a="346679541" X-IronPort-AV: E=Sophos;i="6.01,215,1684825200"; d="scan'208";a="346679541" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jul 2023 22:37:25 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10775"; a="723876144" X-IronPort-AV: E=Sophos;i="6.01,215,1684825200"; d="scan'208";a="723876144" Received: from lkp-server02.sh.intel.com (HELO 36946fcf73d7) ([10.239.97.151]) by orsmga002.jf.intel.com with ESMTP; 18 Jul 2023 22:37:22 -0700 Received: from kbuild by 36946fcf73d7 with local (Exim 4.96) (envelope-from ) id 1qLzsH-0004BV-0x; Wed, 19 Jul 2023 05:37:21 +0000 Date: Wed, 19 Jul 2023 13:36:38 +0800 From: kernel test robot To: Andy Shevchenko , Andrew Morton , kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List , Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , Andy Shevchenko Subject: Re: [PATCH v1 1/1] kasan: Replace strreplace() with strchrnul() Message-ID: <202307191350.tJh2PZdE-lkp@intel.com> References: <20230628153342.53406-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230628153342.53406-1-andriy.shevchenko@linux.intel.com> X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: EDAFFA000E X-Stat-Signature: p6rut3yy46cd8zj5b4xfa4eufxsxd5jg X-Rspam-User: X-HE-Tag: 1689745046-46448 X-HE-Meta: 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 cpGFBbKA 1L05cM60fJIlfJ2EtfTVe2keC7FmkLl6uQhvu/nFTN2S/bZ7z0cETsWPQ1YSt/VkhODjiP5NylTNneOnb3WZD6Mo3ly0aebBCGLju0hzR+Kc9JyUSnYTgHEmxErCoy6uMl4mf+Z/d2u0/kH3UoFMReDT7bztq1LflagWngh7G2YP3tVPq81hXayzqmmLRblrhhE817C+GeamEpsv2iOoy7PJzFFESCtuCFXcvdLmY3rKib6uoOFUELEaelV6kS7iAFQJclDssTtb6rEnrfCjDoya+rqimwK9zM0Saw/tSJ+geuRvRxk9grIYPBSsQzMR0b6Xo8IRNJgP0aavqQvdsS8WSYmPEnwwbBuCCrrbo9ceyqqSPS1vIzVUxW3t/yxhiyxP4tgAS49K+kBFzn/1RzxApCDvoSiM2hdJv/ORYuo9eO6awqMprQJPWeA== 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: Hi Andy, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on linus/master v6.5-rc2 next-20230718] [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/Andy-Shevchenko/kasan-Replace-strreplace-with-strchrnul/20230628-233727 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230628153342.53406-1-andriy.shevchenko%40linux.intel.com patch subject: [PATCH v1 1/1] kasan: Replace strreplace() with strchrnul() config: x86_64-randconfig-x001-20230718 (https://download.01.org/0day-ci/archive/20230719/202307191350.tJh2PZdE-lkp@intel.com/config) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce: (https://download.01.org/0day-ci/archive/20230719/202307191350.tJh2PZdE-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/202307191350.tJh2PZdE-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/kasan/report_generic.c:286:3: warning: variable 'p' is uninitialized when used here [-Wuninitialized] p[strchrnul(token, ':') - token] = '\0'; ^ mm/kasan/report_generic.c:267:10: note: initialize the variable 'p' to silence this warning char *p; ^ = NULL 1 warning generated. vim +/p +286 mm/kasan/report_generic.c 242 243 static void print_decoded_frame_descr(const char *frame_descr) 244 { 245 /* 246 * We need to parse the following string: 247 * "n alloc_1 alloc_2 ... alloc_n" 248 * where alloc_i looks like 249 * "offset size len name" 250 * or "offset size len name:line". 251 */ 252 253 char token[64]; 254 unsigned long num_objects; 255 256 if (!tokenize_frame_descr(&frame_descr, token, sizeof(token), 257 &num_objects)) 258 return; 259 260 pr_err("\n"); 261 pr_err("This frame has %lu %s:\n", num_objects, 262 num_objects == 1 ? "object" : "objects"); 263 264 while (num_objects--) { 265 unsigned long offset; 266 unsigned long size; 267 char *p; 268 269 /* access offset */ 270 if (!tokenize_frame_descr(&frame_descr, token, sizeof(token), 271 &offset)) 272 return; 273 /* access size */ 274 if (!tokenize_frame_descr(&frame_descr, token, sizeof(token), 275 &size)) 276 return; 277 /* name length (unused) */ 278 if (!tokenize_frame_descr(&frame_descr, NULL, 0, NULL)) 279 return; 280 /* object name */ 281 if (!tokenize_frame_descr(&frame_descr, token, sizeof(token), 282 NULL)) 283 return; 284 285 /* Strip line number; without filename it's not very helpful. */ > 286 p[strchrnul(token, ':') - token] = '\0'; 287 288 /* Finally, print object information. */ 289 pr_err(" [%lu, %lu) '%s'", offset, offset + size, token); 290 } 291 } 292 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki