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;
Date:   Mon, 29 Oct 2018 09:36:35 -0400
From:   Sasha Levin <sashal@kernel.org>
To:     Arnd Bergmann <arnd@arndb.de>
Cc:     Paul Burton <paul.burton@mips.com>,
        "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        James Hogan <jhogan@kernel.org>,
        Ralf Baechle <ralf@linux-mips.org>,
        "linux-mips@linux-mips.org" <linux-mips@linux-mips.org>
Subject: Re: [PATCH AUTOSEL 4.14 33/46] MIPS: Workaround GCC
 __builtin_unreachable reordering bug
Message-ID: <20181029133635.GM2015@sasha-vm>
References: <20181025141053.213330-1-sashal@kernel.org>
 <20181025141053.213330-33-sashal@kernel.org>
 <20181025195254.q55noj2rdh5vyw5s@pburton-laptop>
 <CAK8P3a2eOo=9Pv4XmyX30_PYoRpp_f6rXQn+pk9z21wMvE84Ag@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Disposition: inline
In-Reply-To: <CAK8P3a2eOo=9Pv4XmyX30_PYoRpp_f6rXQn+pk9z21wMvE84Ag@mail.gmail.com>
User-Agent: Mutt/1.9.4 (2018-02-28)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Fri, Oct 26, 2018 at 09:36:30AM +0200, Arnd Bergmann wrote:
>On 10/25/18, Paul Burton <paul.burton@mips.com> wrote:
>> On Thu, Oct 25, 2018 at 10:10:40AM -0400, Sasha Levin wrote:
>>> From: Paul Burton <paul.burton@mips.com>
>>> ---
>>>  arch/mips/Kconfig                |  1 +
>>>  arch/mips/include/asm/compiler.h | 35 ++++++++++++++++++++++++++++++++
>>>  2 files changed, 36 insertions(+)
>>
>> In principle I'm fine with backporting this - it does fix broken builds.
>>
>> It's only going to be of any use though if you also backport commit
>> 04f264d3a8b0 ("compiler.h: Allow arch-specific asm/compiler.h"). I'd
>> recommend backporting both or neither.
>>
>> In practice I think it's unlikely anyone will need a microMIPS kernel &
>> be tied to the particular versions affected by the bug this patch fixed,
>> so I don't think it's a problem to backport neither.
>
>I think the current practice of the stable kernel these days is to take
>both patches in this case: They fix an actual bug in the mainline kernel,
>and it seems unlikely enough that they cause a regression if backported,
>so putting them into 4.14 has more advantages than disadvantages.

I'll take both, thank you!

--
Thanks,
Sasha