From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) (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 617201840 for ; Mon, 11 Apr 2022 19:46:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1649706403; x=1681242403; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=qd8xB8/pQWpvGflrqWIresaz99YocN5UGfgkrUCN3eg=; b=Mno5uUojsxBUBDT2t80P/RXKdMVXNaPywMwuae5AK9FNCiDiaRY2OgNm 4bWuEbhAlpQAg4Il2zK5g/FvV0xW2EntfouwzqShvehF8CAY8G6iHvtNj 4SM9ccfX4V6wDebDHmcitgXUdpm86nJtu57cZ2nAdF3jOUM+KDUOgqNzL 33egVrzSODQlYL7Ftz1sIWZxk7IBgcYERyoOpfTw9k92aefF3EvPS5wT3 w+TrsoP3ZjfLKPwtdR7yw8gbUgP1+9yJh8zAaD8IpB/EH/aA6N9Zis660 3dpNWvs92eeYyt081aDcnDcpybgQeBHr5bLxT1Lm/kE8jAX+C2P81/HVo Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10314"; a="249484171" X-IronPort-AV: E=Sophos;i="5.90,252,1643702400"; d="scan'208";a="249484171" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Apr 2022 12:46:42 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,252,1643702400"; d="scan'208";a="660183146" Received: from lkp-server02.sh.intel.com (HELO d3fc50ef50de) ([10.239.97.151]) by orsmga004.jf.intel.com with ESMTP; 11 Apr 2022 12:46:41 -0700 Received: from kbuild by d3fc50ef50de with local (Exim 4.95) (envelope-from ) id 1ndzzl-00027u-2H; Mon, 11 Apr 2022 19:46:41 +0000 Date: Tue, 12 Apr 2022 03:46:23 +0800 From: kernel test robot To: Paolo Abeni Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org Subject: Re: [RFC PATCH 3/4] mptcp: never shrink offered window Message-ID: <202204120334.WqEBThyK-lkp@intel.com> References: Precedence: bulk X-Mailing-List: llvm@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: User-Agent: Mutt/1.10.1 (2018-07-13) Hi Paolo, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on mptcp/export] [also build test ERROR on linus/master v5.18-rc2 next-20220411] [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/intel-lab-lkp/linux/commits/Paolo-Abeni/mptcp-improve-mptcp-level-window-tracking/20220411-184144 base: https://github.com/multipath-tcp/mptcp_net-next.git export config: arm-buildonly-randconfig-r006-20220411 (https://download.01.org/0day-ci/archive/20220412/202204120334.WqEBThyK-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c6e83f560f06cdfe8aa47b248d8bdc58f947274b) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/intel-lab-lkp/linux/commit/4cd25cbca4acc18a428817e9b1adc5ddd131422b git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Paolo-Abeni/mptcp-improve-mptcp-level-window-tracking/20220411-184144 git checkout 4cd25cbca4acc18a428817e9b1adc5ddd131422b # 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=arm SHELL=/bin/bash net/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): net/mptcp/options.c:554:21: warning: parameter 'remaining' set but not used [-Wunused-but-set-parameter] unsigned int remaining, ^ In file included from net/mptcp/options.c:9: In file included from include/linux/kernel.h:22: In file included from include/linux/bitops.h:33: In file included from arch/arm/include/asm/bitops.h:243: In file included from include/asm-generic/bitops/lock.h:5: In file included from include/linux/atomic.h:7: In file included from arch/arm/include/asm/atomic.h:16: >> arch/arm/include/asm/cmpxchg.h:254:1: error: instruction requires: !armv*m "1: ldrexd %1, %H1, [%3]\n" ^ :1:5: note: instantiated into assembly here 1: ldrexd r8, r9, [r11] ^ In file included from net/mptcp/options.c:9: In file included from include/linux/kernel.h:22: In file included from include/linux/bitops.h:33: In file included from arch/arm/include/asm/bitops.h:243: In file included from include/asm-generic/bitops/lock.h:5: In file included from include/linux/atomic.h:7: In file included from arch/arm/include/asm/atomic.h:16: arch/arm/include/asm/cmpxchg.h:258:2: error: instruction requires: !armv*m " strexd %0, %5, %H5, [%3]\n" ^ :5:2: note: instantiated into assembly here strexd r0, r4, r5, [r11] ^ 1 warning and 2 errors generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for DRM_GEM_SHMEM_HELPER Depends on HAS_IOMEM && DRM && MMU Selected by - DRM_SSD130X && HAS_IOMEM && DRM vim +254 arch/arm/include/asm/cmpxchg.h e001bbae7147b1 Russell King 2015-05-26 243 2523c67bb6962f Will Deacon 2013-10-09 244 static inline unsigned long long __cmpxchg64(unsigned long long *ptr, 2523c67bb6962f Will Deacon 2013-10-09 245 unsigned long long old, 2523c67bb6962f Will Deacon 2013-10-09 246 unsigned long long new) 2523c67bb6962f Will Deacon 2013-10-09 247 { 2523c67bb6962f Will Deacon 2013-10-09 248 unsigned long long oldval; 2523c67bb6962f Will Deacon 2013-10-09 249 unsigned long res; 2523c67bb6962f Will Deacon 2013-10-09 250 c32ffce0f66e5d Will Deacon 2014-02-21 251 prefetchw(ptr); c32ffce0f66e5d Will Deacon 2014-02-21 252 2523c67bb6962f Will Deacon 2013-10-09 253 __asm__ __volatile__( 2523c67bb6962f Will Deacon 2013-10-09 @254 "1: ldrexd %1, %H1, [%3]\n" 2523c67bb6962f Will Deacon 2013-10-09 255 " teq %1, %4\n" 2523c67bb6962f Will Deacon 2013-10-09 256 " teqeq %H1, %H4\n" 2523c67bb6962f Will Deacon 2013-10-09 257 " bne 2f\n" 2523c67bb6962f Will Deacon 2013-10-09 258 " strexd %0, %5, %H5, [%3]\n" 2523c67bb6962f Will Deacon 2013-10-09 259 " teq %0, #0\n" 2523c67bb6962f Will Deacon 2013-10-09 260 " bne 1b\n" 2523c67bb6962f Will Deacon 2013-10-09 261 "2:" 2523c67bb6962f Will Deacon 2013-10-09 262 : "=&r" (res), "=&r" (oldval), "+Qo" (*ptr) 2523c67bb6962f Will Deacon 2013-10-09 263 : "r" (ptr), "r" (old), "r" (new) 2523c67bb6962f Will Deacon 2013-10-09 264 : "cc"); 2523c67bb6962f Will Deacon 2013-10-09 265 2523c67bb6962f Will Deacon 2013-10-09 266 return oldval; 2523c67bb6962f Will Deacon 2013-10-09 267 } 2523c67bb6962f Will Deacon 2013-10-09 268 -- 0-DAY CI Kernel Test Service https://01.org/lkp