From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (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 9E67E13A41F; Thu, 24 Jul 2025 02:40:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753324823; cv=none; b=AWO9eu/5eXuLcIT2Hp0chRtb31pEVzpysnzfHf+QKz1Dp5ZZvoHzAAtT8LZWZI0yAG8WUFmIgvkpE6LuExNEOofuZkz9YeZEAv/PL5t0TmT6ynlAnOZ+IYVv2c64TfpbeIqGZL6mMZ+gfs3WdHSnv5Caj1F9bL+P43IP6JxdPGA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753324823; c=relaxed/simple; bh=e1IWKLfwf+Gm+vS9RnjIYq35KCV+QHS/5qqAru5oyLM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=YMawFMCVI8D+veaK4WJP2X+I9awM6MgHQZIWe2jLhqyWPmw9sehhIqqjC9OlTSVwJ8aXqL1GB4klm9UaqFjVhVvpSqbk2fl9EADkKqcpcp+XxrE4W0mnBhzUTO4XISv/NBD26Sl2fM4WWC32Is1wHcUiAHlscT1ngEpvZhGWyS8= 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=Kig69IgF; arc=none smtp.client-ip=198.175.65.15 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="Kig69IgF" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1753324821; x=1784860821; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=e1IWKLfwf+Gm+vS9RnjIYq35KCV+QHS/5qqAru5oyLM=; b=Kig69IgF1FyvyLZ0VQmgrC2bcMsyI1jQWj00jx38hothNyGrUswMKM7/ BgSIDcUaUdGDktDdxACwynNe1pQlbdBAibUy6p8BEwlFDWRdWDTwOrU6l VgRValcEezVHgc2zfOEcrwkZY/t748nZRMqD0SR74balh/Ss1xQ5pMj7I sLpIENtsHLozcf7F+aTrj0GCthliGcaQPOJKtFGEyHSHI3sZId8ms7V/y HJPlGU7WkQ2E0wEe1qJ5sj3UvBHrP94G7kk23ICd8LBJuCYVSPFRK6yTm C5aWlqjLV90wNriP2Zu5p+WPr/623/p4RXAsxcsn4BZzkZ8q1/C4BfHQY g==; X-CSE-ConnectionGUID: ROcsxAKfSoK4IsdBSLgCKw== X-CSE-MsgGUID: 9R46eQ4qTRG5yygGaFIGPw== X-IronPort-AV: E=McAfee;i="6800,10657,11501"; a="59280766" X-IronPort-AV: E=Sophos;i="6.16,336,1744095600"; d="scan'208";a="59280766" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jul 2025 19:40:21 -0700 X-CSE-ConnectionGUID: K5b91yXgSJm5kM4pKUbkdw== X-CSE-MsgGUID: /7sTt8BpTLi1waAcTH2B2w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,336,1744095600"; d="scan'208";a="159647355" Received: from lkp-server01.sh.intel.com (HELO 9ee84586c615) ([10.239.97.150]) by orviesa009.jf.intel.com with ESMTP; 23 Jul 2025 19:40:19 -0700 Received: from kbuild by 9ee84586c615 with local (Exim 4.96) (envelope-from ) id 1uelsW-000K15-2k; Thu, 24 Jul 2025 02:40:16 +0000 Date: Thu, 24 Jul 2025 10:39:38 +0800 From: kernel test robot To: Nam Cao , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Gabriele Monaco , linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, Nam Cao Subject: Re: [PATCH v2 5/5] rv: Remove struct rv_monitor::reacting Message-ID: <202507241015.Qun68uPH-lkp@intel.com> References: <58c63faec76ffb36552fcd1fdcc4b9dd841efd94.1753252872.git.namcao@linutronix.de> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <58c63faec76ffb36552fcd1fdcc4b9dd841efd94.1753252872.git.namcao@linutronix.de> Hi Nam, kernel test robot noticed the following build warnings: [auto build test WARNING on trace/for-next] [also build test WARNING on next-20250723] [cannot apply to linus/master v6.16-rc7] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Nam-Cao/rv-Remove-unused-field-in-struct-rv_monitor_def/20250723-144825 base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next patch link: https://lore.kernel.org/r/58c63faec76ffb36552fcd1fdcc4b9dd841efd94.1753252872.git.namcao%40linutronix.de patch subject: [PATCH v2 5/5] rv: Remove struct rv_monitor::reacting config: arc-randconfig-002-20250724 (https://download.01.org/0day-ci/archive/20250724/202507241015.Qun68uPH-lkp@intel.com/config) compiler: arc-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250724/202507241015.Qun68uPH-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/202507241015.Qun68uPH-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/trace/rv/rv_reactors.c: In function 'monitor_reactors_write': >> kernel/trace/rv/rv_reactors.c:211:14: warning: variable 'enable' set but not used [-Wunused-but-set-variable] 211 | bool enable; | ^~~~~~ vim +/enable +211 kernel/trace/rv/rv_reactors.c cb85c660fcd4b3a Gabriele Monaco 2025-03-05 201 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 202 static ssize_t 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 203 monitor_reactors_write(struct file *file, const char __user *user_buf, 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 204 size_t count, loff_t *ppos) 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 205 { 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 206 char buff[MAX_RV_REACTOR_NAME_SIZE + 2]; 98b2531fbe93031 Nam Cao 2025-07-23 207 struct rv_monitor *mon; aef8790cfb7b07f Nam Cao 2025-07-23 208 struct rv_reactor *reactor; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 209 struct seq_file *seq_f; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 210 int retval = -EINVAL; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 @211 bool enable; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 212 char *ptr; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 213 int len; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 214 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 215 if (count < 1 || count > MAX_RV_REACTOR_NAME_SIZE + 1) 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 216 return -EINVAL; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 217 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 218 memset(buff, 0, sizeof(buff)); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 219 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 220 retval = simple_write_to_buffer(buff, sizeof(buff) - 1, ppos, user_buf, count); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 221 if (retval < 0) 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 222 return -EFAULT; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 223 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 224 ptr = strim(buff); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 225 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 226 len = strlen(ptr); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 227 if (!len) 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 228 return count; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 229 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 230 /* 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 231 * See monitor_reactors_open() 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 232 */ 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 233 seq_f = file->private_data; 98b2531fbe93031 Nam Cao 2025-07-23 234 mon = seq_f->private; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 235 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 236 mutex_lock(&rv_interface_lock); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 237 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 238 retval = -EINVAL; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 239 aef8790cfb7b07f Nam Cao 2025-07-23 240 list_for_each_entry(reactor, &rv_reactors_list, list) { aef8790cfb7b07f Nam Cao 2025-07-23 241 if (strcmp(ptr, reactor->name) != 0) 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 242 continue; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 243 aef8790cfb7b07f Nam Cao 2025-07-23 244 if (strcmp(reactor->name, "nop")) 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 245 enable = false; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 246 else 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 247 enable = true; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 248 a96356e99938184 Nam Cao 2025-07-23 249 monitor_swap_reactors(mon, reactor); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 250 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 251 retval = count; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 252 break; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 253 } 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 254 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 255 mutex_unlock(&rv_interface_lock); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 256 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 257 return retval; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 258 } 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 259 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki