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 X-Spam-Level: X-Spam-Status: No, score=-22.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CFF69C433DB for ; Tue, 22 Dec 2020 05:03:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A1B9823159 for ; Tue, 22 Dec 2020 05:03:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725907AbgLVFDr (ORCPT ); Tue, 22 Dec 2020 00:03:47 -0500 Received: from mail.kernel.org ([198.145.29.99]:37562 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725807AbgLVFDr (ORCPT ); Tue, 22 Dec 2020 00:03:47 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3867F22518; Tue, 22 Dec 2020 05:03:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1608613386; bh=cPk2W6GKhabXQskzP6DCuQDT6bv8ApGi/8s7Y9Q3mCQ=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:From; b=f/wcKe6xX5h46+qKgfAq+Jk4n0gYLuObsCn4foiApT8W/4I4zVswkXtQobkdb1Cmu VZgrhPOS6j3H5ry9WyyEWKYGh/KU5DM5f9HdosUVJlezIONOVhbsA3C1GBvWQR2W6A TNOzf/mpYO4CqAZrfC2qlrDMYQ8k/hM2IWRGNGERrqeEmGUDDpPZHKAMPUQPZvcCEV nchALWqKA6JttCinavfzP7Isv8PMGaxGYmhr5wKda/55EiMIa7Gs5HnITAIfPMqMHm hGKszYL+RZtXBVTFgR62MFWu/qVtQMutAstyA5dgBYKIq2qz/wQ3rWC6RPxYNvoyKj 2mQ2WcJ/OLXNg== Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id E7671352275F; Mon, 21 Dec 2020 21:03:05 -0800 (PST) Date: Mon, 21 Dec 2020 21:03:05 -0800 From: "Paul E. McKenney" To: kernel test robot Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: Re: update.c:undefined reference to `irq_work_queue' Message-ID: <20201222050305.GA2657@paulmck-ThinkPad-P72> Reply-To: paulmck@kernel.org References: <202012221118.j0EcAlVl-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202012221118.j0EcAlVl-lkp@intel.com> User-Agent: Mutt/1.9.4 (2018-02-28) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 22, 2020 at 11:24:22AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 8653b778e454a7708847aeafe689bce07aeeb94e > commit: b38f57c1fe64276773b124dffb0a139cc32ab3cb rcu-tasks: Allow rcu_read_unlock_trace() under scheduler locks > date: 8 months ago > config: h8300-randconfig-s032-20201220 (attached as .config) > compiler: h8300-linux-gcc (GCC) 9.3.0 > reproduce: > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # apt-get install sparse > # sparse version: v0.6.3-184-g1b896707-dirty > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b38f57c1fe64276773b124dffb0a139cc32ab3cb > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > git fetch --no-tags linus master > git checkout b38f57c1fe64276773b124dffb0a139cc32ab3cb > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=h8300 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot > > All errors (new ones prefixed by >>): > > h8300-linux-ld: section .init.text LMA [000000000043a160,0000000000452569] overlaps section .rodata LMA [00000000003ff420,000000000047df2f] > h8300-linux-ld: section .data VMA [0000000000400000,000000000043a15f] overlaps section .rodata VMA [00000000003ff420,000000000047df2f] > h8300-linux-ld: section __ksymtab VMA [000000000047df30,000000000048611f] overlaps section .bss VMA [000000000045ebd0,000000000056a053] > h8300-linux-ld: kernel/rcu/update.o: in function `rcu_read_unlock_trace_special': > >> update.c:(.text+0x8f9): undefined reference to `irq_work_queue' Does the patch below help? Thanx, Paul ------------------------------------------------------------------------ commit cb7220ed05190c9a92df95b52a21525a7e08a449 Author: Paul E. McKenney Date: Mon Dec 21 21:00:18 2020 -0800 rcu: Make TASKS_TRACE_RCU select IRQ_WORK Tasks Trace RCU uses irq_work_queue() to safely awaken its grace-period kthread, so this commit therefore causes the TASKS_TRACE_RCU Kconfig option select the IRQ_WORK Kconfig option. Reported-by: kernel test robot Signed-off-by: Paul E. McKenney diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig index aa8cc8c9..3128b7c 100644 --- a/kernel/rcu/Kconfig +++ b/kernel/rcu/Kconfig @@ -95,6 +95,7 @@ config TASKS_RUDE_RCU config TASKS_TRACE_RCU def_bool 0 + select IRQ_WORK help This option enables a task-based RCU implementation that uses explicit rcu_read_lock_trace() read-side markers, and allows