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 DFBECE743EC for ; Fri, 29 Sep 2023 06:08:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232693AbjI2GI3 (ORCPT ); Fri, 29 Sep 2023 02:08:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59482 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232666AbjI2GIZ (ORCPT ); Fri, 29 Sep 2023 02:08:25 -0400 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6986B1A2 for ; Thu, 28 Sep 2023 23:08:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1695967703; x=1727503703; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=giAVI+01eW3Y1aSyfY09p6nVoX4nZ7ysOacYBgd2FVk=; b=leifIoGNBqoUcacVkGamriFFfb9HBuMaTrK7ELD4kYqAcaQ0Zw64/uAR vhCv0OAvBWUdwR/S9sOffgoW6wPjF1SvKgZ6uX7TBrSDrTkaCZkcqzsaJ k5BPjOHBzfIpN7GH5jtgbBDBfC25qxSdDBnzDIkiEJXps/ZFnooBWsw2E f1dMlHwNpKC1nFI4dUNNGfR5zExJIOMZtw6c3lZ+4e7qs7LWR8cwWfVZM YKS9rU4POR4ix3SL4D87CQECV7wuEUdb+QR2ib94JsePRQdfRn0UtOiqt NTDm8WFXSktM3IZHyqpj+NCH7vshlVPPnMZo+4jnzdiNCvDFTOJf1s+GW Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10847"; a="446401088" X-IronPort-AV: E=Sophos;i="6.03,186,1694761200"; d="scan'208";a="446401088" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2023 23:08:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10847"; a="779195222" X-IronPort-AV: E=Sophos;i="6.03,186,1694761200"; d="scan'208";a="779195222" Received: from lkp-server02.sh.intel.com (HELO c3b01524d57c) ([10.239.97.151]) by orsmga008.jf.intel.com with ESMTP; 28 Sep 2023 23:08:20 -0700 Received: from kbuild by c3b01524d57c with local (Exim 4.96) (envelope-from ) id 1qm6fi-0002XJ-1T; Fri, 29 Sep 2023 06:08:18 +0000 Date: Fri, 29 Sep 2023 14:07:43 +0800 From: kernel test robot To: Earl Chew , linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org, jirislaby@kernel.org Cc: oe-kbuild-all@lists.linux.dev, peter@hurleysoftware.com, earl.chew@yahoo.ca, kernel test robot Subject: Re: [PATCH v2 2/3] tty: Serialise racing tiocspgrp() callers Message-ID: <202309291311.hbeO1nmm-lkp@intel.com> References: <20230928130658.4045344-3-earl.chew@yahoo.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230928130658.4045344-3-earl.chew@yahoo.ca> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Earl, kernel test robot noticed the following build warnings: [auto build test WARNING on tty/tty-testing] [also build test WARNING on tty/tty-next tty/tty-linus linus/master v6.6-rc3 next-20230928] [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/Earl-Chew/tty-Fix-__tty_check_change-and-tiocspgrp-race/20230929-010931 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing patch link: https://lore.kernel.org/r/20230928130658.4045344-3-earl.chew%40yahoo.ca patch subject: [PATCH v2 2/3] tty: Serialise racing tiocspgrp() callers config: i386-randconfig-062-20230929 (https://download.01.org/0day-ci/archive/20230929/202309291311.hbeO1nmm-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230929/202309291311.hbeO1nmm-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/202309291311.hbeO1nmm-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/tty/tty_jobctrl.c:83:52: sparse: sparse: Using plain integer as NULL pointer drivers/tty/tty_jobctrl.c:88:45: sparse: sparse: Using plain integer as NULL pointer drivers/tty/tty_jobctrl.c:97:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:97:9: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:97:9: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:100:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:100:34: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:100:34: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:141:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:141:31: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:141:31: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:143:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:143:33: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:143:33: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:152:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:152:31: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:152:31: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:173:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:173:33: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:173:33: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:182:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:182:9: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:182:9: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:184:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:184:40: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:184:40: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:222:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:222:41: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:222:41: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:232:51: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:232:51: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:232:51: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:244:43: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:244:43: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:244:43: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:308:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:308:39: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:308:39: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:311:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:311:41: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:311:41: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:340:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:340:31: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:340:31: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:343:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ drivers/tty/tty_jobctrl.c:343:33: sparse: expected struct spinlock [usertype] *lock drivers/tty/tty_jobctrl.c:343:33: sparse: got struct spinlock [noderef] __rcu * drivers/tty/tty_jobctrl.c:19:41: sparse: sparse: dereference of noderef expression drivers/tty/tty_jobctrl.c: note: in included file (through include/linux/rculist.h, include/linux/sched/signal.h): include/linux/rcupdate.h:778:9: sparse: sparse: context imbalance in '__tty_check_change_locked' - different lock contexts for basic block vim +83 drivers/tty/tty_jobctrl.c 80 81 int __tty_check_change(struct tty_struct *tty, int sig) 82 { > 83 return __tty_check_change_locked(tty, sig, 0); 84 } 85 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki