From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) (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 6CE2239FFD; Fri, 17 May 2024 21:41:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715982093; cv=none; b=k2J4a8kLY+1ymBEbYoepvBj5s+458Q4GbCH7XfTBe2tTxbqw6RCieNyv8DE+FJI8/ibdGn7Rs4VHgqgvU0gCuwiLbObkE/ke5oJsLVPG15rlozlZ8FzbLFsz1n4l5/xKA1tPMACRCNUh0k69lCc9RGfkVM7+BvMJAn03/65A8UQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715982093; c=relaxed/simple; bh=4DbhTqVeCazl5JYN5QLQkbjuL3BMRR4vuSZ6FBq93Jc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=TEu4/3r2JmBz41OetC2PujvqMHpfUJjhYoiVZYJk82zkxKNtaa26ihtQJ3BWi9lRQUvCMn9xCEAGo6Gm7Rlh2N0Mv5R+sTiP7AkbFJVJbk0EEil/2FQ4zmnR17VRbf46+7tAUg8+rnjVdAiRlhovI0egm4u9yQp3G9A6Bnb4jEc= 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=DYHavwk5; arc=none smtp.client-ip=192.198.163.14 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="DYHavwk5" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1715982092; x=1747518092; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=4DbhTqVeCazl5JYN5QLQkbjuL3BMRR4vuSZ6FBq93Jc=; b=DYHavwk5BDhpoO5lvq4eAS9ZQALRzhUga0ic1Mldk8H67Hi/WVExCvE/ zCmBok8BvE6/IKi/jOT2XJ+FJHrfiOrFElENc751Tf0dQ8w1v9wvIposO 0zJlhNeGiJobaJQM7KTeGj59Z2Bny0h/UgQiUPr0lYhcFsxZNtK0w6Wmj CJHAcvvJsg4FJdR0+6jqvS8UKlFbhs7Kgy0SeIynRCaSj6LATZYeqg71b EWqtwXPGdES/+o6LYikceHfIU35FfJ3NVUZTLZWyuFWT0jryWC4Rbnx7b kawFGivVXjsn2vFk0CUnQSzi9cvANXHeaS0y1AJnNu+ArausT5ncyaGEM g==; X-CSE-ConnectionGUID: qyP+kP+/SGO5WA3mSmR9Hg== X-CSE-MsgGUID: tkzBAKr2QseCS4C3Tua+Wg== X-IronPort-AV: E=McAfee;i="6600,9927,11075"; a="12397799" X-IronPort-AV: E=Sophos;i="6.08,168,1712646000"; d="scan'208";a="12397799" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 May 2024 14:41:30 -0700 X-CSE-ConnectionGUID: e19tFCluQkOjkel6aQ+J2Q== X-CSE-MsgGUID: xJBNCq0iQ1WL/xSrWmqUqg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,168,1712646000"; d="scan'208";a="31935398" Received: from unknown (HELO 108735ec233b) ([10.239.97.151]) by fmviesa006.fm.intel.com with ESMTP; 17 May 2024 14:41:20 -0700 Received: from kbuild by 108735ec233b with local (Exim 4.96) (envelope-from ) id 1s85KH-00019l-1V; Fri, 17 May 2024 21:41:17 +0000 Date: Sat, 18 May 2024 05:34:17 +0800 From: kernel test robot To: ye.xingchen@zte.com.cn, davem@davemloft.net Cc: oe-kbuild-all@lists.linux.dev, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, corbet@lwn.net, dsahern@kernel.org, ncardwell@google.com, soheil@google.com, mfreemon@cloudflare.com, lixiaoyan@google.com, david.laight@aculab.com, haiyangz@microsoft.com, ye.xingchen@zte.com.cn, netdev@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, xu.xin16@zte.com.cn, zhang.yunkai@zte.com.cn, fan.yu9@zte.com.cn Subject: Re: [PATCH net-next] icmp: Add icmp_timestamp_ignore_all to control ICMP_TIMESTAMP Message-ID: <202405180527.iGJVxmda-lkp@intel.com> References: <20240517172639229ec5bN7VBV7SGEHkSK5K6f@zte.com.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240517172639229ec5bN7VBV7SGEHkSK5K6f@zte.com.cn> Hi, kernel test robot noticed the following build warnings: [auto build test WARNING on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/ye-xingchen-zte-com-cn/icmp-Add-icmp_timestamp_ignore_all-to-control-ICMP_TIMESTAMP/20240517-172903 base: net-next/main patch link: https://lore.kernel.org/r/20240517172639229ec5bN7VBV7SGEHkSK5K6f%40zte.com.cn patch subject: [PATCH net-next] icmp: Add icmp_timestamp_ignore_all to control ICMP_TIMESTAMP config: arc-vdk_hs38_defconfig (https://download.01.org/0day-ci/archive/20240518/202405180527.iGJVxmda-lkp@intel.com/config) compiler: arc-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240518/202405180527.iGJVxmda-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/202405180527.iGJVxmda-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from ./arch/arc/include/generated/asm/rwonce.h:1, from include/linux/compiler.h:299, from include/linux/build_bug.h:5, from include/linux/container_of.h:5, from include/linux/list.h:5, from include/linux/module.h:12, from net/ipv4/icmp.c:62: net/ipv4/icmp.c: In function 'icmp_timestamp': >> include/asm-generic/rwonce.h:44:71: warning: 'net' is used uninitialized [-Wuninitialized] 44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x)) | ^~~~ include/asm-generic/rwonce.h:50:9: note: in expansion of macro '__READ_ONCE' 50 | __READ_ONCE(x); \ | ^~~~~~~~~~~ net/ipv4/icmp.c:1157:13: note: in expansion of macro 'READ_ONCE' 1157 | if (READ_ONCE(net->ipv4.sysctl_icmp_timestamp_ignore_all)) | ^~~~~~~~~ net/ipv4/icmp.c:1155:21: note: 'net' was declared here 1155 | struct net *net; | ^~~ vim +/net +44 include/asm-generic/rwonce.h e506ea451254ab1 Will Deacon 2019-10-15 28 e506ea451254ab1 Will Deacon 2019-10-15 29 /* e506ea451254ab1 Will Deacon 2019-10-15 30 * Yes, this permits 64-bit accesses on 32-bit architectures. These will e506ea451254ab1 Will Deacon 2019-10-15 31 * actually be atomic in some cases (namely Armv7 + LPAE), but for others we e506ea451254ab1 Will Deacon 2019-10-15 32 * rely on the access being split into 2x32-bit accesses for a 32-bit quantity e506ea451254ab1 Will Deacon 2019-10-15 33 * (e.g. a virtual address) and a strong prevailing wind. e506ea451254ab1 Will Deacon 2019-10-15 34 */ e506ea451254ab1 Will Deacon 2019-10-15 35 #define compiletime_assert_rwonce_type(t) \ e506ea451254ab1 Will Deacon 2019-10-15 36 compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ e506ea451254ab1 Will Deacon 2019-10-15 37 "Unsupported access size for {READ,WRITE}_ONCE().") e506ea451254ab1 Will Deacon 2019-10-15 38 e506ea451254ab1 Will Deacon 2019-10-15 39 /* e506ea451254ab1 Will Deacon 2019-10-15 40 * Use __READ_ONCE() instead of READ_ONCE() if you do not require any 3c9184109e78ea2 Will Deacon 2019-10-30 41 * atomicity. Note that this may result in tears! e506ea451254ab1 Will Deacon 2019-10-15 42 */ b78b331a3f5c077 Will Deacon 2019-10-15 43 #ifndef __READ_ONCE e506ea451254ab1 Will Deacon 2019-10-15 @44 #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x)) b78b331a3f5c077 Will Deacon 2019-10-15 45 #endif e506ea451254ab1 Will Deacon 2019-10-15 46 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki