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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1211AC71136 for ; Mon, 16 Jun 2025 15:08:47 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 89DAE6B00A7; Mon, 16 Jun 2025 11:08:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 874F06B00A9; Mon, 16 Jun 2025 11:08:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7B1F66B00B7; Mon, 16 Jun 2025 11:08:47 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 6A4CD6B00A7 for ; Mon, 16 Jun 2025 11:08:47 -0400 (EDT) Received: from smtpin26.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 2333D806DE for ; Mon, 16 Jun 2025 15:08:47 +0000 (UTC) X-FDA: 83561595894.26.84B00C8 Received: from out30-119.freemail.mail.aliyun.com (out30-119.freemail.mail.aliyun.com [115.124.30.119]) by imf23.hostedemail.com (Postfix) with ESMTP id E72CE140008 for ; Mon, 16 Jun 2025 15:08:43 +0000 (UTC) Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=linux.alibaba.com header.s=default header.b=VG92VnFW; spf=pass (imf23.hostedemail.com: domain of feng.tang@linux.alibaba.com designates 115.124.30.119 as permitted sender) smtp.mailfrom=feng.tang@linux.alibaba.com; dmarc=pass (policy=none) header.from=linux.alibaba.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1750086525; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=45TM9TQRagX2IF5SvAUP0uNlAbenpANguVySgK/vH8U=; b=qs7DgcCmFb95xVqFkfmOcUEu9LLN1AYdbKwupehmIMwSbzu9C7m+TfEgGB5wZ1km+Dh2L0 5R4L7GhIopu5BDZmi1y0oJF36LeuQAYEDTqyGr8CNDz8tz2URSIBCAPdtj2jjG8kGDoD5s wpLrMQsQ3AXDEKZyvJAc2lY8K1fNjDQ= ARC-Authentication-Results: i=1; imf23.hostedemail.com; dkim=pass header.d=linux.alibaba.com header.s=default header.b=VG92VnFW; spf=pass (imf23.hostedemail.com: domain of feng.tang@linux.alibaba.com designates 115.124.30.119 as permitted sender) smtp.mailfrom=feng.tang@linux.alibaba.com; dmarc=pass (policy=none) header.from=linux.alibaba.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1750086525; a=rsa-sha256; cv=none; b=y7fvKQaltc6/FLt7whhOUPhC3QMZpWDmxy9SSfUJb+d0P10ypWx1i9ts4xgPszHYGyeIng zhPDrrxsvYQbcvK4C8z0ZsyLH+f7JxB7eQl28H7bzVKqeo/CfyML4qwaSnKHdP2M0LrRjM CK0SrUBmeglB/pSW6ZpB+9TM2nSFFqI= DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1750086521; h=Date:From:To:Subject:Message-ID:MIME-Version:Content-Type; bh=45TM9TQRagX2IF5SvAUP0uNlAbenpANguVySgK/vH8U=; b=VG92VnFWy+1//Ri3fUEdyJO1pMnd3gCzVeqJd6zbG9qmj3AKODRoHWcUWWtm0dP5BhXodGxn5CIYKWKpCJb/jymMgNJIAtqBQH4VbhxZpy0H7gHTOLjgTB2cTgnnJwp8REG9MWU2cpvFAutpKJMmlyOpLH/Q9lhnFQz9X9cMAjM= Received: from localhost(mailfrom:feng.tang@linux.alibaba.com fp:SMTPD_---0We.J-ww_1750086519 cluster:ay36) by smtp.aliyun-inc.com; Mon, 16 Jun 2025 23:08:39 +0800 Date: Mon, 16 Jun 2025 23:08:38 +0800 From: Feng Tang To: kernel test robot Cc: Andrew Morton , Petr Mladek , Steven Rostedt , Lance Yang , Jonathan Corbet , linux-kernel@vger.kernel.org, llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List , paulmck@kernel.org, john.ogness@linutronix.de Subject: Re: [PATCH V2 3/5] sys_info: add help to translate sys_info string to bitmap Message-ID: References: <20250616010840.38258-4-feng.tang@linux.alibaba.com> <202506161234.wRZSzo5v-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <202506161234.wRZSzo5v-lkp@intel.com> X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: E72CE140008 X-Stat-Signature: qj46cs5a3wwqe4mp3ihbyqzretumghtm X-Rspam-User: X-HE-Tag: 1750086523-754839 X-HE-Meta: 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 +XUobLdC 9i7ahZqLsqWOMCcuE2v9pk6U6UMn2CG7vlRTZPObXh3KCsYDa4wkK61XnJ81mE/YouQBIQiKvDIc2pIlpoqjxd+zQ39rhXaElY1bRhAs/y0ESJ9oHlwPG4B2n/7fZQwXyA/SCh4/dNNlf2QGvHdfKvMIYC0Zota6gwMxyjSRJmFDoYF8VzTyjFXckcq50K6nDvACwFKk7H/ArQHdEz0/ln8k5Aya6FbA7ArbypQ5Ycryx2bAVmnFGElcScXVqR0tDIKd7g/+5dtF1cREJ+4u7nhNjunqYv1XssIb+DGn80OovREGPT550j7gUvNCAuwprv+G31ilvVPrr4DkykOPoA/lkQquN/U+q2nQdoXKfHrTrr3s4Hq6pswyuMOF0Am85C/BjUydOOsM1mxOXp9iX3vHwVdbom8JtvDw33kXae9rfKM2lImUwzR8CbMs4kTBwC0Gobv5qJ3di9GdW0VV2GE+fYKCbR4zwqaLZV3FT/EnqKnJPS1V8TnaRBx45ma+Cxau+ X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Jun 16, 2025 at 12:25:29PM +0800, kernel test robot wrote: > Hi Feng, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on akpm-mm/mm-nonmm-unstable] > [also build test WARNING on akpm-mm/mm-everything linus/master v6.16-rc2 next-20250613] > [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/Feng-Tang/panic-clean-up-code-for-console-replay/20250616-091042 > base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable > patch link: https://lore.kernel.org/r/20250616010840.38258-4-feng.tang%40linux.alibaba.com > patch subject: [PATCH V2 3/5] sys_info: add help to translate sys_info string to bitmap > config: x86_64-buildonly-randconfig-001-20250616 (https://download.01.org/0day-ci/archive/20250616/202506161234.wRZSzo5v-lkp@intel.com/config) > compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247) > rustc: rustc 1.78.0 (9b00956e5 2024-04-29) > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250616/202506161234.wRZSzo5v-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/202506161234.wRZSzo5v-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > > >> lib/sys_info.c:13:19: warning: unused variable 'sys_info_avail' [-Wunused-const-variable] > 13 | static const char sys_info_avail[] = "tasks,mem,timer,lock,ftrace,all_bt,blocked_tasks"; > | ^~~~~~~~~~~~~~ > 1 warning generated. Thanks for the reporting! This is related with CONFIG_SYSCTL=n, and should be fixed by below patch: --- diff --git a/lib/sys_info.c b/lib/sys_info.c index 9693542435ba..ca289b4871b4 100644 --- a/lib/sys_info.c +++ b/lib/sys_info.c @@ -10,8 +10,6 @@ struct sys_info_name { const char *name; }; -static const char sys_info_avail[] = "tasks,mem,timer,lock,ftrace,all_bt,blocked_tasks"; - static const struct sys_info_name si_names[] = { { SYS_SHOW_TASK_INFO, "tasks" }, { SYS_SHOW_MEM_INFO, "mem" }, @@ -43,6 +41,8 @@ unsigned long sys_info_parse_param(char *str) } #ifdef CONFIG_SYSCTL +static const char sys_info_avail[] = "tasks,mem,timer,lock,ftrace,all_bt,blocked_tasks"; + int sysctl_sys_info_handler(const struct ctl_table *ro_table, int write, void *buffer, size_t *lenp, loff_t *ppos)