From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.93]) (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 7D704185E for ; Sun, 15 Oct 2023 11:04:32 +0000 (UTC) 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="Km9BKZ7N" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1697367872; x=1728903872; h=date:from:to:cc:subject:message-id:mime-version; bh=UZTLHkcFYTnxd6qgSdi4Kz02bDuGQ++kI+b+p54QUL8=; b=Km9BKZ7NzoN5CISy5Q29P1exStbOOAUEh2niD3mH37ny07UPGRwRqwj2 3/LfZANfweF8sJT5rY5Dt8TmRbXWGFdyHi6rYN+yjwFYDq51eBHF5CavT jYS8Pr7NbzpKq3MnWR8RPNSOUjRfOAiAGFkZlTpP7qxGBfyXbNUoMFPBH x7Ow8lN90h2OKDiLgZqG3MsL9GMwQUe+lH0tnbmfMK4hLaE14U4dvYXD8 V8d65rB1RgbKB+SIdfaGYcabyKYcKL4NHTZgso1+eeV4qLKRuMI5ADAx/ C9KvC4VItV6NxgW8pGD1RIzO9URMlIQfu5jAquyVU84va4OVwUIyNi60J Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10863"; a="382610283" X-IronPort-AV: E=Sophos;i="6.03,226,1694761200"; d="scan'208";a="382610283" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Oct 2023 04:04:31 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10863"; a="1002575533" X-IronPort-AV: E=Sophos;i="6.03,226,1694761200"; d="scan'208";a="1002575533" Received: from lkp-server02.sh.intel.com (HELO f64821696465) ([10.239.97.151]) by fmsmga006.fm.intel.com with ESMTP; 15 Oct 2023 04:04:29 -0700 Received: from kbuild by f64821696465 with local (Exim 4.96) (envelope-from ) id 1qryv5-0007LX-28; Sun, 15 Oct 2023 11:04:27 +0000 Date: Sun, 15 Oct 2023 19:03:39 +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: <202310151835.jARUbXX7-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: 9a3dad63edbe9a2ab2be1e7361a2133f519f855b commit: 28f152cd0926596e69d412467b11b6fe6fe4e864 sched/rt: fix build error when CONFIG_SYSCTL is disable date: 1 year, 6 months ago config: i386-tinyconfig (https://download.01.org/0day-ci/archive/20231015/202310151835.jARUbXX7-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231015/202310151835.jARUbXX7-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/202310151835.jARUbXX7-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