Re: Kernel version plans for Fedora 34 ?

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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.

Thanks,
Justin
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