Re: Kernel version plans for Fedora 34 ?

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Hi,

On 2/11/21 7:58 PM, Justin Forbes wrote:
> On Thu, Feb 11, 2021 at 12:32 PM Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
>>
>> Hi,
>>
>> On 2/11/21 4:06 PM, Justin Forbes wrote:
>>> On Thu, Feb 11, 2021 at 7:19 AM Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
>>>>
>>>> Hi,
>>>>
>>>> I was wondering with which kernel version we are planning to ship Fedora 34 gold ?
>>>>
>>>> I expect 5.12 final to be released on April 19th, which puts it just past the
>>>> F34 final freeze. So I was wondering if we are going to stick with 5.11, or
>>>> since things are close, do the 5.12-rc7 to final bump during the freeze?
>>>
>>> Your timeline is off:
>>>
>>> the v5.12 kernel predictions: merge window closes on Sunday,
>>> 2021-03-07 and release on Sunday, 2021-05-02
>>>
>>> Fedora 34 will ship with 5.11. Of course we will rebase to 5.12 when
>>> it is appropriate to do so.
>>>
>>>>
>>>> The reason I'm asking is that the 5.12 kernel has the kernel interfaces which
>>>> power-profile-daemon:
>>>>
>>>> https://gitlab.gnome.org/Teams/Design/settings-mockups/-/blob/master/power/power.png
>>>> http://www.hadess.net/2020/09/power-profiles-daemon-new-project.html
>>>>
>>>> Will use to set the performance (aka platform) profile on for example
>>>> ThinkPad laptops.
>>>>
>>>> So if we are going to ship with 5.12, then everything will be great,
>>>> but if we are going to go with 5.11, then I should probably backport
>>>> the necessary bits to the Fedora 5.11 kernels (the patches are not that
>>>> big, it just took a while for everyone to agree on the userspace API).
>>>>
>>>> So, what kernel-version are we planning on shipping F34 gold with?
>>>>
>>>
>>> While F34 will ship with 5.11, it should be well past the merge window
>>> for 5.12, and I expect those patches will be in linus' tree at that
>>> point. If that is the case, I don't see why they can't be brought back
>>> to 5.11 if they are non invasive.
>>
>> Ok, so I will backport the patches once 5.12-rc2 is out (going with rc2
>> not rc1 to add some time for testing).
>>
>> So where do I submit these once backported ?  Do I just add them to dist-git
>> as before ?  AFAIK 5.11 will be the first kernel-ark based Fedora kernel
>> (at least 5.10 dist-git does not look ark based), right ?
>>
>> So I'm wondering how we add patches there?  I guess merge-reqs to kernel-ark
>> are not an option since that will be tracking 5.12 at that point.
> 
> 
> In theory, there will be a fedora-5.11 branch in kernel-ark which
> tracks Greg's linux-5.11.y tree.  But Greg needs to create the tree
> first.  There may be some growing pains as this is the first release
> we are doing this on.  If that tree is not working by the time RC2 is
> out or you want to submit, an email to the list is fine.

Ok, sounds good.

Regards,

Hans
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