[OpenWrt-Devel] v5.4 as next kernel

Adrian Schmutzler mail at adrianschmutzler.de
Wed Oct 30 12:29:21 EDT 2019


> -----Original Message-----
> From: openwrt-devel [mailto:openwrt-devel-bounces at lists.openwrt.org] On Behalf Of Hauke Mehrtens
> Sent: Mittwoch, 30. Oktober 2019 16:54
> To: John Crispin <john at phrozen.org>; OpenWrt Development List <openwrt-devel at lists.openwrt.org>
> Subject: Re: [OpenWrt-Devel] v5.4 as next kernel
> On 10/29/19 6:37 AM, John Crispin wrote:
> > Hi,
> > should we use v5.4 as our next kernel ?
> >     John
> I also agree to have kernel 5.4 as the next kernel, it will be finally
> released in about 1 months and it is a long term kernel. If we are lucky
> it will be supported for 6 years for Android.
> What do we want to use in the next 20.X release after 19.07?
> If we want to go with kernel 5.4 with the release after 19.07 we can not
> make this release before April, I would assume. We would have generic
> support in OpenWrt master in about 1 month and then we will port the
> targets, probably we will have the most important targets ported about
> 2 months later (Mid January 2020) and can stabilize and port the rest of
> afterwards.
> hauke

1. We currently have work-in-progress 4.19 support PRs for ramips, ipq806x and bcm63xx, still with considerable work to do at least for the first two (IIRC). Without in-depth knowledge, I wonder whether it wouldn't be more efficient to skip 4.19 for those and go directly to 5.4 (less backporting etc., but also more adjustments of local stuff).
2. Obviously, starting with 5.4 now will cause a mixed-kernel-release-or-not debate in early 2020. So, when moving to 5.4 we should already ask ourselves this question early in the process. (Which obviously also depends on the decision on subject 1.) I personally favor to not have a mixed kernel release, but as I'm commenting from the side my voice shouldn't count much in that process.
3. Since stable branches are typically made 3-6 months after when they have been set, I wouldn't care too much about a 3 month delay in estimated release date. :-)

Just wanted to add those thoughts to the discussion, sorry for not providing answers ;-)


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