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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 E1337C433E0 for ; Thu, 28 May 2020 21:03:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B82AA208B8 for ; Thu, 28 May 2020 21:03:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590699817; bh=agEaof6MpDGFOPjG017BhHJsuSFW58ckIR+2SITSxqQ=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:List-ID: From; b=l0JaaFJmOj3GPyUAC5YikuKp1JqiBhBUDYqx0hzIHE9TyEUA6dtoXugwqnngHK9DD WojkhzBI6HQ2hH+XZDqOebs3sjLZAo3ldZJ/J8zNRX92bog6NOdkbr6uWjcEMyFuDP bmgsSLw3adhXugXBPx/zTu8HS/YazgfIL1fnqTSU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2407499AbgE1VDg (ORCPT ); Thu, 28 May 2020 17:03:36 -0400 Received: from mail.kernel.org ([198.145.29.99]:59928 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2407418AbgE1VDV (ORCPT ); Thu, 28 May 2020 17:03:21 -0400 Received: from paulmck-ThinkPad-P72.home (50-39-105-78.bvtn.or.frontiernet.net [50.39.105.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 228402075F; Thu, 28 May 2020 21:03:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590699801; bh=agEaof6MpDGFOPjG017BhHJsuSFW58ckIR+2SITSxqQ=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:From; b=QYVLb6ZnCegT+zMGUCQyyBTtCThMi0d4hJ3yn4hDlU3jVf4GlLXfISHfQltE8ebvM P+GiIdO3RWSFtgbhHK0oOlZZYPPG0ZLH1rvUiRlULUBgmleIjLTz8C+oYal4n9bzil GTXoqE2MlDpZ/o/ezZDHYc9OUjutBg4eX3pdK1i8= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id 0BC5C35229BA; Thu, 28 May 2020 14:03:21 -0700 (PDT) Date: Thu, 28 May 2020 14:03:21 -0700 From: "Paul E. McKenney" To: Stephen Rothwell Cc: Linux Next Mailing List , Linux Kernel Mailing List , "Joel Fernandes (Google)" Subject: Re: linux-next: build failure after merge of the rcu tree Message-ID: <20200528210320.GA22278@paulmck-ThinkPad-P72> Reply-To: paulmck@kernel.org References: <20200528190501.10135e9f@canb.auug.org.au> <20200528163358.GK2869@paulmck-ThinkPad-P72> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200528163358.GK2869@paulmck-ThinkPad-P72> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 28, 2020 at 09:33:59AM -0700, Paul E. McKenney wrote: > On Thu, May 28, 2020 at 07:05:01PM +1000, Stephen Rothwell wrote: > > Hi all, > > > > After merging the rcu tree, today's linux-next build (powercp > > allyesconfig) failed like this: > > > > ld: kernel/rcu/refperf.o:(.discard+0x0): multiple definition of `__pcpu_unique_srcu_ctl_perf_srcu_data'; kernel/rcu/rcuperf.o:(.discard+0x0): first defined here > > > > Caused by commit > > > > 786a25497743 ("refperf: Add a test to measure performance of read-side synchronization") > > > > From srcutree.h: > > > > * Note that although DEFINE_STATIC_SRCU() hides the name from other > > * files, the per-CPU variable rules nevertheless require that the > > * chosen name be globally unique. > > > > I have applied the following patch for today. > > I have a patch queued, but it is currently blocked by other broken > commits which I expect to have straightened out today. > > Yet again, please accept my apologies for the hassle! And this is now in rcu/next. Thanx, Paul