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From: Olof Johansson <olof@lixom.net>
Date: Fri, 2 Sep 2016 11:21:38 -0700
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To: James Bottomley <James.Bottomley@hansenpartnership.com>
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Subject: Re: [Ksummit-discuss] [Stable kernel] feature backporting
	collaboration
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On Fri, Sep 2, 2016 at 7:42 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Fri, 2016-09-02 at 10:54 +0100, Mark Brown wrote:
>> On Thu, Sep 01, 2016 at 09:25:31PM -0400, Levin, Alexander via
>> Ksummit-discuss wrote:
>> > On Wed, Aug 31, 2016 at 10:01:13PM -0400, Alex Shi wrote:
>>
>> > > I am a Linaro stable kernel maintainer. Our stable kernel is base
>> > > on LTS plus much of upstream features backporting on them. Here
>> > > is the detailed
>>
>> > I really disagree with this approach. I think that backporting
>> > board support like what LTSI does might make sense since it's self
>> > contained, but what LSK does is just crazy.
>>
>> The bulk of these features are exactly that - they're isolated driver
>> specific code or new subsystems.  There are also some things with
>> wider impact but it's nowhere near all of them.
>
> It's crazy because it encourages precisely the wrong behaviour: vendors
> target this tree not upstream.

The one case where it is warranted is for features that went in since
the last LTS release.

Pushing vendors all the way to target a non-LTS release is a bit more
aggressive that needed, in my opinion.


-Olof