From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (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 E604C227E94 for ; Wed, 21 May 2025 15:57:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747843039; cv=none; b=U9LTtZd5XLXihr1eKEyzv85heDKC6EnHhbisQMarTT08iyLbDDf57jxNDfNo46TnoLnMVw+FYZsug14ftUkOts++txDqkSDV+0KQ5XlZPfQfTb7icjsFc91q83agncioBTPZIgBlrCV8o6ajHYI/tEcZgYLoybUY9BvAjKie2ro= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747843039; c=relaxed/simple; bh=cu+NuJemimQYmwhNsSM3z/pVnmIZv/JSAilKNPCIcvY=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=CKXUH30fiyy3C67CQCNQPREwkaXa98p23Ds/FfngYxScuHb1yLG/dMnPF/XoFj3nksX+l8/sFtefhMR9M1I55z+AEZEvJ8WER5CncFctJpsQ+/MlfKmf17TN4JAsgLpcqDhZ0DOgelwBe0iZzL7RfXHWNMYo12oCjgz0TCqnC+U= 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=FLs6pzax; arc=none smtp.client-ip=192.198.163.18 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="FLs6pzax" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1747843038; x=1779379038; h=date:from:to:cc:subject:message-id:mime-version; bh=cu+NuJemimQYmwhNsSM3z/pVnmIZv/JSAilKNPCIcvY=; b=FLs6pzaxFx6o5PGPUBO6eD2bYGQghWXF6jbNwwur9pAb0FznejKKYPTI +KMHfHNRDJ+/zisa5tXSR6UFUUPQIfbF5t+yEowbCLlxFeLXtyi/SGd4Z dmEpsStoDIhJjb3kGr4hYNlOZyWPBWb2x2kF590+ZHtF391GMelOI+4LF lVsq/qPmyNRR3Z7gy40i9KZ7V/A4OYEDZjY2dIJvtwby2pXpXdOF9X4K4 QSqKzzkKyU3NzFF9MYeXWFGLrjRZvrlcf1UxYJT/fk256my/K+R0Fw1gk D/o7+rPIbr3nOCrdN5wJEpvyRNmEaHbfLJM8cxSaUWvEbTrG2+5+ik88a w==; X-CSE-ConnectionGUID: Lw5CwzPzRVaLMniKvCFR9Q== X-CSE-MsgGUID: HEVDC3wSQFeryewHMGTWKw== X-IronPort-AV: E=McAfee;i="6700,10204,11440"; a="49088880" X-IronPort-AV: E=Sophos;i="6.15,303,1739865600"; d="scan'208";a="49088880" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 May 2025 08:57:17 -0700 X-CSE-ConnectionGUID: thJYo7RuQ3aTMXIseYI9RA== X-CSE-MsgGUID: T4hGK9ZRRlOgA33Gev9T1A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,303,1739865600"; d="scan'208";a="145391427" Received: from lkp-server01.sh.intel.com (HELO 1992f890471c) ([10.239.97.150]) by fmviesa004.fm.intel.com with ESMTP; 21 May 2025 08:57:16 -0700 Received: from kbuild by 1992f890471c with local (Exim 4.96) (envelope-from ) id 1uHlof-000OPw-2T; Wed, 21 May 2025 15:57:13 +0000 Date: Wed, 21 May 2025 23:57:03 +0800 From: kernel test robot To: Baisong Zhong Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Luis Chamberlain Subject: kernel/sched/rt.c:9:18: warning: 'max_rt_runtime' defined but not used Message-ID: <202505212328.gm09NHiP-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi Baisong, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 4a95bc121ccdaee04c4d72f84dbfa6b880a514b6 commit: 28f152cd0926596e69d412467b11b6fe6fe4e864 sched/rt: fix build error when CONFIG_SYSCTL is disable date: 3 years, 2 months ago config: csky-randconfig-r001-20230826 (https://download.01.org/0day-ci/archive/20250521/202505212328.gm09NHiP-lkp@intel.com/config) compiler: csky-linux-gcc (GCC) 12.4.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250521/202505212328.gm09NHiP-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/202505212328.gm09NHiP-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from kernel/sched/build_policy.c:43: kernel/sched/rt.c:309:6: warning: no previous prototype for 'unregister_rt_sched_group' [-Wmissing-prototypes] 309 | void unregister_rt_sched_group(struct task_group *tg) { } | ^~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/rt.c:311:6: warning: no previous prototype for 'free_rt_sched_group' [-Wmissing-prototypes] 311 | void free_rt_sched_group(struct task_group *tg) { } | ^~~~~~~~~~~~~~~~~~~ kernel/sched/rt.c:313:5: warning: no previous prototype for 'alloc_rt_sched_group' [-Wmissing-prototypes] 313 | int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent) | ^~~~~~~~~~~~~~~~~~~~ kernel/sched/rt.c:716:6: warning: no previous prototype for 'sched_rt_bandwidth_account' [-Wmissing-prototypes] 716 | bool sched_rt_bandwidth_account(struct rt_rq *rt_rq) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ >> kernel/sched/rt.c:9:18: warning: 'max_rt_runtime' defined but not used [-Wunused-const-variable=] 9 | static const u64 max_rt_runtime = MAX_BW; | ^~~~~~~~~~~~~~ vim +/max_rt_runtime +9 kernel/sched/rt.c d505b8af58912a Huaixin Chang 2020-04-25 @9 static const u64 max_rt_runtime = MAX_BW; ce0dbbbb30aee6 Clark Williams 2013-02-07 10 :::::: The code at line 9 was first introduced by commit :::::: d505b8af58912ae1e1a211fabc9995b19bd40828 sched: Defend cfs and rt bandwidth quota against overflow :::::: TO: Huaixin Chang :::::: CC: Peter Zijlstra -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki