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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30C3BC433F5 for ; Tue, 1 Feb 2022 12:56:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238240AbiBAM4M (ORCPT ); Tue, 1 Feb 2022 07:56:12 -0500 Received: from mga06.intel.com ([134.134.136.31]:12032 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229725AbiBAM4I (ORCPT ); Tue, 1 Feb 2022 07:56:08 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1643720168; x=1675256168; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=F/PNLCQjl3adnb0moLdl49HjekyThZribRW7PYNGG6M=; b=jTxpjFJZfV21oD9kmWI/ClV026VsYsE7Az51CqH6SR/wCg26m646PNDn wHsSjMYY9bvA11r/coZ3cTFZK+uAcT2xyiBWE6Tp0C9TlxdDI1JjNBTRA H+5yQcpcQI/HypWHrzvkyruE7zLt4jB8zupadDq/JvrPiOST4jl8MkLlP z8waRVuhzliiV5m2i1cRYS+tDR7hF/JWzc2zbUI79eCGBllW+OzxQmOHq CIGjXyF7VNAUIbIRnsgh9IRtJAl/VPc4rTtZerIG61DPizir0QqNkNsCA ePVrEQBvTA+XlNNC+0XV428esXigzUUF9Jqt1cageNSPd/0O555PtjuJ/ Q==; X-IronPort-AV: E=McAfee;i="6200,9189,10244"; a="308414872" X-IronPort-AV: E=Sophos;i="5.88,333,1635231600"; d="scan'208";a="308414872" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Feb 2022 04:55:43 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,333,1635231600"; d="scan'208";a="771097518" Received: from lkp-server01.sh.intel.com (HELO 276f1b88eecb) ([10.239.97.150]) by fmsmga005.fm.intel.com with ESMTP; 01 Feb 2022 04:55:40 -0800 Received: from kbuild by 276f1b88eecb with local (Exim 4.92) (envelope-from ) id 1nEsh9-000THa-NR; Tue, 01 Feb 2022 12:55:39 +0000 Date: Tue, 1 Feb 2022 20:54:51 +0800 From: kernel test robot To: tangmeng , tglx@linutronix.de, mcgrof@kernel.org, keescook@chromium.org, yzaikin@google.com, john.stultz@linaro.org, sboyd@kernel.org Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, tangmeng Subject: Re: [PATCH v5] kernel/time: move timer sysctls to its own file Message-ID: <202202012006.823BFJHa-lkp@intel.com> References: <20220131102214.2284-1-tangmeng@uniontech.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220131102214.2284-1-tangmeng@uniontech.com> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi tangmeng, Thank you for the patch! Yet something to improve: [auto build test ERROR on tip/timers/core] [also build test ERROR on linus/master kees/for-next/pstore v5.17-rc2 next-20220131] [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] url: https://github.com/0day-ci/linux/commits/tangmeng/kernel-time-move-timer-sysctls-to-its-own-file/20220131-182433 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 35e13e9da9afbce13c1d36465504ece4e65f24fe config: s390-randconfig-r044-20220131 (https://download.01.org/0day-ci/archive/20220201/202202012006.823BFJHa-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6b1e844b69f15bb7dffaf9365cd2b355d2eb7579) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://github.com/0day-ci/linux/commit/c54967d83b26ebacf4a1b686c6b659150b73306c git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review tangmeng/kernel-time-move-timer-sysctls-to-its-own-file/20220131-182433 git checkout c54967d83b26ebacf4a1b686c6b659150b73306c # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash kernel/time/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): In file included from kernel/time/timer.c:37: In file included from include/linux/tick.h:8: In file included from include/linux/clockchips.h:14: In file included from include/linux/clocksource.h:22: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:36:59: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) ^ In file included from kernel/time/timer.c:37: In file included from include/linux/tick.h:8: In file included from include/linux/clockchips.h:14: In file included from include/linux/clocksource.h:22: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) ^ In file included from kernel/time/timer.c:37: In file included from include/linux/tick.h:8: In file included from include/linux/clockchips.h:14: In file included from include/linux/clocksource.h:22: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ >> kernel/time/timer.c:284:2: error: implicit declaration of function 'register_sysctl_init' [-Werror,-Wimplicit-function-declaration] register_sysctl_init("kernel", timer_sysctl); ^ 12 warnings and 1 error generated. vim +/register_sysctl_init +284 kernel/time/timer.c 281 282 static int __init timer_sysctl_init(void) 283 { > 284 register_sysctl_init("kernel", timer_sysctl); 285 return 0; 286 } 287 __initcall(timer_sysctl_init); 288 #endif 289 static inline bool is_timers_nohz_active(void) 290 { 291 return static_branch_unlikely(&timers_nohz_active); 292 } 293 #else 294 static inline bool is_timers_nohz_active(void) { return false; } 295 #endif /* NO_HZ_COMMON */ 296 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org