From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932630AbbDMMlL (ORCPT ); Mon, 13 Apr 2015 08:41:11 -0400 Received: from e34.co.us.ibm.com ([32.97.110.152]:53790 "EHLO e34.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932089AbbDMMlH (ORCPT ); Mon, 13 Apr 2015 08:41:07 -0400 Date: Mon, 13 Apr 2015 05:40:58 -0700 From: "Paul E. McKenney" To: Ingo Molnar Cc: Borislav Petkov , Stephen Rothwell , linux-next@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: linux-next: build failure after merge of the rcu tree Message-ID: <20150413124058.GQ23685@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <20150413203917.1e7ea535@canb.auug.org.au> <20150413110620.GD22325@pd.tnic> <20150413113405.GA667@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150413113405.GA667@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15041312-0017-0000-0000-00000A03EF06 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 13, 2015 at 01:34:05PM +0200, Ingo Molnar wrote: > > * Borislav Petkov wrote: > > > On Mon, Apr 13, 2015 at 08:39:17PM +1000, Stephen Rothwell wrote: > > > Hi Paul, > > > > > > After merging the rcu tree, today's linux-next build (powerpc allnoconfig) > > > failed like this: > > > > > > init/main.c: In function 'rest_init': > > > init/main.c:387:2: error: implicit declaration of function 'smpboot_thread_init' [-Werror=implicit-function-declaration] > > > smpboot_thread_init(); > > > ^ > > > > > > Caused by commit c55f6e1f6f69 ("cpu: Defer smpboot kthread unparking > > > until CPU known to scheduler"). The declaration in include/linux/cpu.h > > > is protected by CONFIG_SMP, its use is not. > > > > > > I have reverted that commit for today. > > > > Thanks for the report Stephen, I know today is the day of b0rked > > linux-next builds :-( > > > > I think Ingo merged Paul's patch already so here's a fix ontop: > > Yeah, I too triggered that build failure and fixed it locally. What I get for immediately going to long-term testing. The scenarios that trigger this one were of course the last to run. :-/ Thank you all, and apologies for the hassle! Thanx, Paul