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 E27F7C10F14 for ; Thu, 3 Oct 2019 20:49:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A0CD5222BE for ; Thu, 3 Oct 2019 20:49:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570135791; bh=T7GyCKf+5lR0UHhpOwx4h8MhXmzyZ24igcrrwR+1Grc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=tZ74HMkQiHPdWyNA1vLBytBvB2MMnxrZqwEkl0/CGXK7CwpCv5dXpc1z/I4kKNAM9 rXHIoT5BQbYRpMfoo59H73a+tRasHuaItF7thFxYcET2BZympQElLkRPh/+KQ/nstO O+M/aSuy7kRM0z/TS4OL26/fzqA8Zh/SyT77GVeY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731635AbfJCUtu (ORCPT ); Thu, 3 Oct 2019 16:49:50 -0400 Received: from mail.kernel.org ([198.145.29.99]:41762 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727326AbfJCUtu (ORCPT ); Thu, 3 Oct 2019 16:49:50 -0400 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (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 836AC2086A; Thu, 3 Oct 2019 20:49:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570135790; bh=T7GyCKf+5lR0UHhpOwx4h8MhXmzyZ24igcrrwR+1Grc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=YlsegnXXNUnybEBXEiNuPIaAn6MGu0PBLmoyYyZOGQMBQhz2leOs4foXuyQddIs05 FmGYYmMaGqfBjbUqRHuh53SzDP0dq/PhR7W6DOYBcJsEShxWm/6npfRvJdkMBuYZ/I D1T6Z3ytd0PlY3qs1BaBqxjwb0QWj1dLUCwZfts4= Date: Thu, 3 Oct 2019 21:49:45 +0100 From: Will Deacon To: Nick Desaulniers Cc: Vincenzo Frascino , Linux ARM , LKML , Ard Biesheuvel , Catalin Marinas , Thomas Gleixner , Andy Lutomirski Subject: Re: [PATCH v5 2/6] arm64: vdso32: Detect binutils support for dmb ishld Message-ID: <20191003204944.6wuzflqkjdpawzvp@willie-the-truck> References: <20191003174838.8872-1-vincenzo.frascino@arm.com> <20191003174838.8872-3-vincenzo.frascino@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 03, 2019 at 01:18:16PM -0700, Nick Desaulniers wrote: > On Thu, Oct 3, 2019 at 10:48 AM Vincenzo Frascino > wrote: > > > > Older versions of binutils that do not support certain types of memory > > barriers can cause build failure of the vdso32 library. > > Do you know specific version numbers of binutils that are affected? > May be helpful to have in the commit message just for future > travelers. A quick bit of archaeology suggests e797f7e0b2be added this back in 2012, which seems to correlate with the 2.24 release. Will