From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1751390AbcFXLih (ORCPT <rfc822;w@1wt.eu>);
	Fri, 24 Jun 2016 07:38:37 -0400
Received: from mx1.redhat.com ([209.132.183.28]:52717 "EHLO mx1.redhat.com"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1750951AbcFXLig (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
	Fri, 24 Jun 2016 07:38:36 -0400
Subject: Re: [PATCH 01/27] [AARCH64] Fix utmp struct for compatibility
 reasons.
To: Andreas Schwab <schwab@suse.de>, Andrew Pinski <pinskia@gmail.com>
References: <1466485631-3532-1-git-send-email-ynorov@caviumnetworks.com>
 <1466485631-3532-2-git-send-email-ynorov@caviumnetworks.com>
 <5769139E.7020805@arm.com> <20160623043542.GA13449@yury-N73SV>
 <CA+=Sn1nsODgGaRT8VLLqfVg+kp7=rr2i0XDT5j0NM_HJhMtv1Q@mail.gmail.com>
 <mvma8icnyw1.fsf@hawking.suse.de>
 <CA+=Sn1nLp2_5mNTmG1=bKibGnkUWgBoOGf0DVxGRM2MkK3jQ4w@mail.gmail.com>
 <mvm1t3onxru.fsf@hawking.suse.de>
Cc: Yury Norov <ynorov@caviumnetworks.com>,
        Szabolcs Nagy <szabolcs.nagy@arm.com>,
        GNU C Library <libc-alpha@sourceware.org>,
        LKML <linux-kernel@vger.kernel.org>, nd <nd@arm.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Marcus Shawcroft <marcus.shawcroft@arm.com>, philb@gnu.org,
        David Miller <davem@davemloft.net>,
        Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>,
        "Joseph S. Myers" <joseph@codesourcery.com>,
        Andrew Pinski <apinski@cavium.com>
From: Florian Weimer <fweimer@redhat.com>
Message-ID: <13f337ec-9ab8-9d7f-8984-0992ef73ddc7@redhat.com>
Date: Fri, 24 Jun 2016 13:38:31 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101
 Thunderbird/45.1.1
MIME-Version: 1.0
In-Reply-To: <mvm1t3onxru.fsf@hawking.suse.de>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Fri, 24 Jun 2016 11:38:35 +0000 (UTC)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On 06/23/2016 09:56 AM, Andreas Schwab wrote:
> Andrew Pinski <pinskia@gmail.com> writes:
>
>> So the question becomes do we care enough about the incompatibles
>> between AARCH32 and AARCH64 to fix this and go just worry about ILP32
>> and LP64?
>
> Some armv8 chips do not implement all of armv7, so how relevant is
> aarch32 on aarch64?

I also do not see sufficient justification for this ABI break.

Thanks,
Florian