From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) (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 19E772C80 for ; Wed, 13 Oct 2021 09:16:25 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10135"; a="214330811" X-IronPort-AV: E=Sophos;i="5.85,370,1624345200"; d="scan'208";a="214330811" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Oct 2021 02:16:25 -0700 X-IronPort-AV: E=Sophos;i="5.85,370,1624345200"; d="scan'208";a="491378550" Received: from rli9-dbox.sh.intel.com (HELO rli9-dbox) ([10.239.159.115]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Oct 2021 02:16:22 -0700 Date: Wed, 13 Oct 2021 17:16:57 +0800 From: Philip Li To: Yicong Yang Cc: kernel test robot , llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, x86@kernel.org, Barry Song , Valentin Schneider Subject: Re: [kbuild-all] Re: [tip:sched/core 45/47] kernel/sched/topology.c:23:20: error: unused function 'sched_debug' Message-ID: References: <202110130209.1XL2cTpW-lkp@intel.com> <0538ccac-19eb-a184-6aef-1d11eefbae17@hisilicon.com> 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: <0538ccac-19eb-a184-6aef-1d11eefbae17@hisilicon.com> On Wed, Oct 13, 2021 at 05:02:42PM +0800, Yicong Yang wrote: > Hi, > > On 2021/10/13 2:30, kernel test robot wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core > > head: b2d5b9cec60fecc72a13191c2c6c05acf60975a5 > > commit: f43df9225fcad9b07a4ef4d0fe4c3ad2fb4ce82d [45/47] sched/topology: Remove unused numa_distance in cpu_attach_domain() > > config: hexagon-buildonly-randconfig-r004-20211012 (attached as .config) > > compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c3dcf39554dbea780d6cb7e12239451ba47a2668) > > 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 > > # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=f43df9225fcad9b07a4ef4d0fe4c3ad2fb4ce82d > > git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git > > git fetch --no-tags tip sched/core > > git checkout f43df9225fcad9b07a4ef4d0fe4c3ad2fb4ce82d > > # save the attached .config to linux build tree > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=hexagon > > > > If you fix the issue, kindly add following tag as appropriate > > Reported-by: kernel test robot > > > > All errors (new ones prefixed by >>): > > > >>> kernel/sched/topology.c:23:20: error: unused function 'sched_debug' [-Werror,-Wunused-function] > > static inline bool sched_debug(void) > > ^ > > 1 error generated. > > > > sched_debug() is unused if CONFIG_ENERGY_MODEL=n || CONFIG_CPU_FREQ_GOV_SCHEDUTIL=n and CONFIG_NUMA=n, > which is the case in the report. This is not introduced by this patch. > > A __maybe_unused qualify for sched_debug() may fix this. Not sure we intends to do so. Hi Yicong, you may wait for Peter's input. 0-day CI is consulting Peter what the appropriate scope is to ignore the W=1 related warnings at https://lore.kernel.org/llvm/CALOAHbDkBn3LDsNvSXujMiQXrLHdRsfvJUqJv_eTh4s63osuTw@mail.gmail.com/T/#m516619d3b8b632e457522ef7827694f9b47c574c We will not reporting out such un-interested issues anymore per the input. > > > > > vim +/sched_debug +23 kernel/sched/topology.c > > > > f2cb13609d5397 Ingo Molnar 2017-02-01 22 > > f2cb13609d5397 Ingo Molnar 2017-02-01 @23 static inline bool sched_debug(void) > > f2cb13609d5397 Ingo Molnar 2017-02-01 24 { > > 9406415f46f612 Peter Zijlstra 2021-04-15 25 return sched_debug_verbose; > > f2cb13609d5397 Ingo Molnar 2017-02-01 26 } > > f2cb13609d5397 Ingo Molnar 2017-02-01 27 > > > > :::::: The code at line 23 was first introduced by commit > > :::::: f2cb13609d5397cdd747f3ed6fb651233851717d sched/topology: Split out scheduler topology code from core.c into topology.c > > > > :::::: TO: Ingo Molnar > > :::::: CC: Ingo Molnar > > > > --- > > 0-DAY CI Kernel Test Service, Intel Corporation > > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org > > > _______________________________________________ > kbuild-all mailing list -- kbuild-all@lists.01.org > To unsubscribe send an email to kbuild-all-leave@lists.01.org