From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 22BCDC77B7E for ; Tue, 2 May 2023 13:44:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234552AbjEBNoc (ORCPT ); Tue, 2 May 2023 09:44:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234477AbjEBNoQ (ORCPT ); Tue, 2 May 2023 09:44:16 -0400 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6DFB17A84; Tue, 2 May 2023 06:43:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1683035027; x=1714571027; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=P63kc43UhIKv9Q4LXJ5JiMCSLZz5VKwB49mJBEQrQ3w=; b=Q2il9T4xSpwpfFAQzxyqS+jPY3bqnRC3PHOjShZagGNR4ZLAXV65GIbC 1t/4nuGqmZ2Eqd/xyrXgd0NkWG7zAlk1EW9knQHMxqbK+26dnDiqma86q JdbXDz/qLCzcJEpE126bGP08Dh1Bo8L/Ms6wUZFbd2ZYAMkMQf97HDg+o 0OKzbIW9Dh7hR90QZ1DmzWxKH1Ky9EQlF50p4rTjnuOBxJGW4Zw6+roSh ubpy979pvdHsQVWADkzBlOpJBmHWMBHXX0/LYHKJSu79Hh2JzIsFIaS/p 7VOCa0ItEVakNr1/mVQu0ntXPa2HL08oz3Hgx9U94wbyRh9QFxWYf/lsJ w==; X-IronPort-AV: E=McAfee;i="6600,9927,10698"; a="413842516" X-IronPort-AV: E=Sophos;i="5.99,244,1677571200"; d="scan'208";a="413842516" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 May 2023 06:41:30 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10698"; a="696183092" X-IronPort-AV: E=Sophos;i="5.99,244,1677571200"; d="scan'208";a="696183092" Received: from lkp-server01.sh.intel.com (HELO e3434d64424d) ([10.239.97.150]) by orsmga002.jf.intel.com with ESMTP; 02 May 2023 06:41:26 -0700 Received: from kbuild by e3434d64424d with local (Exim 4.96) (envelope-from ) id 1ptqFx-000153-16; Tue, 02 May 2023 13:41:25 +0000 Date: Tue, 2 May 2023 21:40:39 +0800 From: kernel test robot To: Ajay Kaher , rostedt@goodmis.org, mhiramat@kernel.org, shuah@kernel.org Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, chinglinyu@google.com, namit@vmware.com, srivatsab@vmware.com, srivatsa@csail.mit.edu, amakhalov@vmware.com, vsirnapalli@vmware.com, tkundu@vmware.com, er.ajay.kaher@gmail.com, Ajay Kaher Subject: Re: [PATCH v2 8/9] eventfs: moving tracing/events to eventfs Message-ID: <202305022138.cJMVU9RM-lkp@intel.com> References: <1683026600-13485-9-git-send-email-akaher@vmware.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1683026600-13485-9-git-send-email-akaher@vmware.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Ajay, kernel test robot noticed the following build warnings: [auto build test WARNING on shuah-kselftest/next] [also build test WARNING on shuah-kselftest/fixes linus/master] [cannot apply to rostedt-trace/for-next-urgent] [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/Ajay-Kaher/eventfs-introducing-struct-tracefs_inode/20230502-192949 base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next patch link: https://lore.kernel.org/r/1683026600-13485-9-git-send-email-akaher%40vmware.com patch subject: [PATCH v2 8/9] eventfs: moving tracing/events to eventfs config: mips-allyesconfig (https://download.01.org/0day-ci/archive/20230502/202305022138.cJMVU9RM-lkp@intel.com/config) compiler: mips-linux-gcc (GCC) 12.1.0 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://github.com/intel-lab-lkp/linux/commit/2fe2002efb23a715f5eb7a58891ff85f4e37b084 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Ajay-Kaher/eventfs-introducing-struct-tracefs_inode/20230502-192949 git checkout 2fe2002efb23a715f5eb7a58891ff85f4e37b084 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=mips olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash kernel/trace/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Link: https://lore.kernel.org/oe-kbuild-all/202305022138.cJMVU9RM-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/trace/trace_events.c: In function 'event_create_dir': >> kernel/trace/trace_events.c:2424:24: warning: variable 'd_events' set but not used [-Wunused-but-set-variable] 2424 | struct dentry *d_events; | ^~~~~~~~ vim +/d_events +2424 kernel/trace/trace_events.c ac343da7bc9048 Masami Hiramatsu 2020-09-10 2417 1473e4417c79f1 Steven Rostedt 2009-02-24 2418 static int 7f1d2f8210195c Steven Rostedt (Red Hat 2015-05-05 2419) event_create_dir(struct dentry *parent, struct trace_event_file *file) 1473e4417c79f1 Steven Rostedt 2009-02-24 2420 { 2425bcb9240f8c Steven Rostedt (Red Hat 2015-05-05 2421) struct trace_event_call *call = file->event_call; ae63b31e4d0e2e Steven Rostedt 2012-05-03 2422 struct trace_array *tr = file->tr; 2fe2002efb23a7 Ajay Kaher 2023-05-02 2423 struct eventfs_file *ef_subsystem = NULL; ae63b31e4d0e2e Steven Rostedt 2012-05-03 @2424 struct dentry *d_events; de7b2973903c6c Mathieu Desnoyers 2014-04-08 2425 const char *name; fd99498989f3b3 Steven Rostedt 2009-02-28 2426 int ret; 1473e4417c79f1 Steven Rostedt 2009-02-24 2427 6ecc2d1ca39177 Steven Rostedt 2009-02-27 2428 /* 6ecc2d1ca39177 Steven Rostedt 2009-02-27 2429 * If the trace point header did not define TRACE_SYSTEM 6ecc2d1ca39177 Steven Rostedt 2009-02-27 2430 * then the system would be called "TRACE_SYSTEM". 6ecc2d1ca39177 Steven Rostedt 2009-02-27 2431 */ ae63b31e4d0e2e Steven Rostedt 2012-05-03 2432 if (strcmp(call->class->system, TRACE_SYSTEM) != 0) { 2fe2002efb23a7 Ajay Kaher 2023-05-02 2433 ef_subsystem = event_subsystem_dir(tr, call->class->system, file, parent); 2fe2002efb23a7 Ajay Kaher 2023-05-02 2434 if (!ef_subsystem) ae63b31e4d0e2e Steven Rostedt 2012-05-03 2435 return -ENOMEM; ae63b31e4d0e2e Steven Rostedt 2012-05-03 2436 } else ae63b31e4d0e2e Steven Rostedt 2012-05-03 2437 d_events = parent; 6ecc2d1ca39177 Steven Rostedt 2009-02-27 2438 687fcc4aee4567 Steven Rostedt (Red Hat 2015-05-13 2439) name = trace_event_name(call); 2fe2002efb23a7 Ajay Kaher 2023-05-02 2440 file->ef = eventfs_add_dir(name, ef_subsystem, &tr->eventfs_rwsem); 2fe2002efb23a7 Ajay Kaher 2023-05-02 2441 if (IS_ERR(file->ef)) { 8434dc9340cd2e Steven Rostedt (Red Hat 2015-01-20 2442) pr_warn("Could not create tracefs '%s' directory\n", name); 1473e4417c79f1 Steven Rostedt 2009-02-24 2443 return -1; 1473e4417c79f1 Steven Rostedt 2009-02-24 2444 } 1473e4417c79f1 Steven Rostedt 2009-02-24 2445 9b63776fa3ca96 Steven Rostedt 2012-05-10 2446 if (call->class->reg && !(call->flags & TRACE_EVENT_FL_IGNORE_ENABLE)) 2fe2002efb23a7 Ajay Kaher 2023-05-02 2447 eventfs_add_file("enable", TRACE_MODE_WRITE, file->ef, file, 620a30e97febc8 Oleg Nesterov 2013-07-31 2448 &ftrace_enable_fops); 1473e4417c79f1 Steven Rostedt 2009-02-24 2449 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests