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[209.132.180.67]) by mx.google.com with ESMTP id g15-v6si15059837plo.284.2018.10.02.04.48.44; Tue, 02 Oct 2018 04:48:59 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@linuxbox.cz header.s=default header.b=mOpe2BEt; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727582AbeJBSbM (ORCPT + 99 others); Tue, 2 Oct 2018 14:31:12 -0400 Received: from gwu.lbox.cz ([62.245.111.132]:37454 "EHLO gwu.lbox.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727434AbeJBSbM (ORCPT ); Tue, 2 Oct 2018 14:31:12 -0400 Received: from linuxbox.linuxbox.cz (linuxbox.linuxbox.cz [10.76.66.10]) by gwu.lbox.cz (Sendmail) with ESMTPS id w92BlYnX016801 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 2 Oct 2018 13:47:34 +0200 DKIM-Filter: OpenDKIM Filter v2.11.0 gwu.lbox.cz w92BlYnX016801 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxbox.cz; s=default; t=1538480856; bh=OXvxD5+VRNhbhOvEmceclUz9ANoOaxApf34HWj0BZ4Y=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=mOpe2BEtSg1LeD77HvR3grSawpfC14uN4JHv0bfGrCKGI6MokyHG/N0WNSVKGDFZX /QfkYv0q9n5T25ZIieLWgzMx/nBVeYutO7p84Dv+vrJXbkYLzUJAL2aGgfsgogxMtC jCuafQ21oNoIlXCpcuacjq5ZkF9f7T6LKoh38jhM= Received: from pcnci.linuxbox.cz (pcnci.linuxbox.cz [10.76.3.14]) by linuxbox.linuxbox.cz (Sendmail) with ESMTPS id w92BlYXO005107 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 2 Oct 2018 13:47:34 +0200 Received: from pcnci.linuxbox.cz (localhost [127.0.0.1]) by pcnci.linuxbox.cz (8.15.2/8.15.2) with SMTP id w92BlYNl000662; Tue, 2 Oct 2018 13:47:34 +0200 Date: Tue, 2 Oct 2018 13:47:34 +0200 From: Nikola Ciprich To: Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, Andy Lutomirski , Thomas Gleixner , Matt Rickard , Borislav Petkov , Jason Vas Dias , David Woodhouse , Peter Zijlstra , Andi Kleen , Nikola Ciprich Subject: Re: [PATCH 4.14 114/165] x86/vdso: Fix vDSO build if a retpoline is emitted Message-ID: <20181002114734.GA31855@pcnci.linuxbox.cz> References: <20180903165655.003605184@linuxfoundation.org> <20180903165701.245301231@linuxfoundation.org> <20181002080655.GV31855@pcnci.linuxbox.cz> <20181002114614.GA2581@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181002114614.GA2581@kroah.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Antivirus: on proxybox by F-Secure antivirus, database version 2018-10-02_03 X-Scanned-By: MIMEDefang v2.74/SpamAssassin v3.004001 on proxybox (nik) X-Spam-Score: N/A (imported whitelist) X-Milter-Copy-Status: O Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RHEL / centos 6: gcc-4.4.7 will check newer kernels too.. thanks n. On Tue, Oct 02, 2018 at 04:46:14AM -0700, Greg Kroah-Hartman wrote: > On Tue, Oct 02, 2018 at 10:06:55AM +0200, Nikola Ciprich wrote: > > Hi Greg and others, > > > > sorry for reporting this so late, but still... > > > > this breaks build on older compilers, since it requires > > -mindirect-branch=thunk-inline -mindirect-branch-register even though > > retpoline support is disabled in kernel config.. is this expected? > > What exact "older compilers" break here? > > And does the same breakage happen in 4.18.6 or 4.19-rc? > > thanks, > > greg k-h > -- ------------------------------------- Ing. Nikola CIPRICH LinuxBox.cz, s.r.o. 28.rijna 168, 709 00 Ostrava tel.: +420 591 166 214 fax: +420 596 621 273 mobil: +420 777 093 799 www.linuxbox.cz mobil servis: +420 737 238 656 email servis: servis@linuxbox.cz -------------------------------------