From: Pavel Machek <pavel@denx.de> To: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Scott Branden <scott.branden@broadcom.com>, Linux ARM <linux-arm-kernel@lists.infradead.org>, LKML <linux-kernel@vger.kernel.org>, BCM Kernel Feedback <bcm-kernel-feedback-list@broadcom.com> Subject: Re: 5.10 LTS Kernel: 2 or 6 years? Date: Thu, 18 Feb 2021 13:51:31 +0100 [thread overview] Message-ID: <20210218125131.GA10316@duo.ucw.cz> (raw) In-Reply-To: <YC4atKmK7ZqlOGER@kroah.com> [-- Attachment #1: Type: text/plain, Size: 2209 bytes --] Hi! > Why would you backport new features to an old kernel? That's not what > they are there for. For CIP project, this is one of advantages for "supported" boards, as we'll backport patches improving their support as long as those patches are mainline. > > If the CIP project has committed to 10 years you would think they would be in contact > > with you to add their support to the 5.10 LTS effort. > > They are doing testing right now, see the announcements where they test > each stable -rc release. But they have not talked to me about 5.10 > yet, Their model is that they will, somehow in a way that is yet to be > determined, take over maintaining these releases _after_ I drop them. > But they are only going to do so for a very specific hardware platform > or two, so anyone using anything other than their specific boards, is > going to be out of luck. I'd say this is a bit inaccurate :-). We care about different boards at armv7, armv8 and x86-64 architectures, which actually means we care about quite big part of the kernel already. Rough estimate is that 50% of patches in stable touch our configurations, I could collect better statistics. As you said, I'm not sure everything is fully determined at this point, but... we'll certainly try to support community effort for 4.4, 4.19 and 5.10 maintainance for as long as possible. It is well possible that we'll continue to maintain even configurations we can't test (we don't have s390 to test on) on best-effort basis (to help community and because applying a patch may be easier than determining if someone in CIP community depends on it). > Which makes sense, scoping support like this to those that actually care > about a specific hardware platform is much easier than the work that I > and Sasha do in support it for all platforms. So if you are interested > in 10 years, please work with CIP to get your platform into that list. And yes, this is very good suggestion. Best regards, Pavel PS: Again, I'm speaking for myself. -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 195 bytes --]
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From: Pavel Machek <pavel@denx.de> To: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: BCM Kernel Feedback <bcm-kernel-feedback-list@broadcom.com>, LKML <linux-kernel@vger.kernel.org>, Linux ARM <linux-arm-kernel@lists.infradead.org>, Scott Branden <scott.branden@broadcom.com> Subject: Re: 5.10 LTS Kernel: 2 or 6 years? Date: Thu, 18 Feb 2021 13:51:31 +0100 [thread overview] Message-ID: <20210218125131.GA10316@duo.ucw.cz> (raw) In-Reply-To: <YC4atKmK7ZqlOGER@kroah.com> [-- Attachment #1.1: Type: text/plain, Size: 2209 bytes --] Hi! > Why would you backport new features to an old kernel? That's not what > they are there for. For CIP project, this is one of advantages for "supported" boards, as we'll backport patches improving their support as long as those patches are mainline. > > If the CIP project has committed to 10 years you would think they would be in contact > > with you to add their support to the 5.10 LTS effort. > > They are doing testing right now, see the announcements where they test > each stable -rc release. But they have not talked to me about 5.10 > yet, Their model is that they will, somehow in a way that is yet to be > determined, take over maintaining these releases _after_ I drop them. > But they are only going to do so for a very specific hardware platform > or two, so anyone using anything other than their specific boards, is > going to be out of luck. I'd say this is a bit inaccurate :-). We care about different boards at armv7, armv8 and x86-64 architectures, which actually means we care about quite big part of the kernel already. Rough estimate is that 50% of patches in stable touch our configurations, I could collect better statistics. As you said, I'm not sure everything is fully determined at this point, but... we'll certainly try to support community effort for 4.4, 4.19 and 5.10 maintainance for as long as possible. It is well possible that we'll continue to maintain even configurations we can't test (we don't have s390 to test on) on best-effort basis (to help community and because applying a patch may be easier than determining if someone in CIP community depends on it). > Which makes sense, scoping support like this to those that actually care > about a specific hardware platform is much easier than the work that I > and Sasha do in support it for all platforms. So if you are interested > in 10 years, please work with CIP to get your platform into that list. And yes, this is very good suggestion. Best regards, Pavel PS: Again, I'm speaking for myself. -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 195 bytes --] [-- Attachment #2: Type: text/plain, Size: 176 bytes --] _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-02-18 14:55 UTC|newest] Thread overview: 133+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-25 19:55 5.10 LTS Kernel: 2 or 6 years? Scott Branden 2021-01-25 19:55 ` Scott Branden 2021-01-26 2:50 ` Adam Borowski 2021-01-26 2:50 ` Adam Borowski 2021-01-26 7:29 ` Greg Kroah-Hartman 2021-01-26 7:29 ` Greg Kroah-Hartman 2021-01-26 17:35 ` Florian Fainelli 2021-01-26 17:35 ` Florian Fainelli 2021-01-26 18:30 ` Scott Branden 2021-01-26 18:30 ` Scott Branden 2021-01-26 18:51 ` Greg Kroah-Hartman 2021-01-26 18:51 ` Greg Kroah-Hartman 2021-01-26 20:15 ` Willy Tarreau 2021-01-26 20:15 ` Willy Tarreau 2021-01-29 10:00 ` 10 years -- was " Pavel Machek 2021-02-17 9:40 ` Greg Kroah-Hartman 2021-02-17 9:40 ` Greg Kroah-Hartman 2021-02-17 19:48 ` Scott Branden 2021-02-17 19:48 ` Scott Branden 2021-02-18 7:43 ` Greg Kroah-Hartman 2021-02-18 7:43 ` Greg Kroah-Hartman 2021-02-18 11:31 ` Willy Tarreau 2021-02-18 11:31 ` Willy Tarreau 2021-02-18 14:15 ` Jari Ruusu 2021-02-18 14:15 ` Jari Ruusu 2021-02-18 14:29 ` Greg Kroah-Hartman 2021-02-18 14:29 ` Greg Kroah-Hartman 2021-02-18 20:55 ` Pavel Machek 2021-02-18 20:55 ` Pavel Machek 2021-02-18 22:43 ` Ondrej Zary 2021-02-18 22:43 ` Ondrej Zary 2021-02-19 8:00 ` Pavel Machek 2021-02-19 8:00 ` Pavel Machek 2021-02-19 8:30 ` Greg Kroah-Hartman 2021-02-19 8:30 ` Greg Kroah-Hartman 2021-02-18 14:33 ` Willy Tarreau 2021-02-18 14:33 ` Willy Tarreau 2021-02-18 17:19 ` Jari Ruusu 2021-02-18 17:19 ` Jari Ruusu 2021-02-18 17:22 ` Russell King - ARM Linux admin 2021-02-18 17:22 ` Russell King - ARM Linux admin 2021-02-18 17:44 ` Greg Kroah-Hartman 2021-02-18 17:44 ` Greg Kroah-Hartman 2021-02-19 7:10 ` Jari Ruusu 2021-02-19 7:10 ` Jari Ruusu 2021-02-19 8:22 ` Greg Kroah-Hartman 2021-02-19 8:22 ` Greg Kroah-Hartman 2021-02-19 10:31 ` Jari Ruusu 2021-02-19 10:31 ` Jari Ruusu 2021-02-19 10:37 ` Greg Kroah-Hartman 2021-02-19 10:37 ` Greg Kroah-Hartman 2021-02-19 10:57 ` Jari Ruusu 2021-02-19 10:57 ` Jari Ruusu 2021-02-19 11:16 ` Greg Kroah-Hartman 2021-02-19 11:16 ` Greg Kroah-Hartman 2021-02-19 15:23 ` Jari Ruusu 2021-02-19 15:23 ` Jari Ruusu 2021-02-20 13:29 ` Jari Ruusu 2021-02-20 13:29 ` Jari Ruusu 2021-02-20 16:05 ` Greg Kroah-Hartman 2021-02-20 16:05 ` Greg Kroah-Hartman 2021-02-20 17:06 ` Willy Tarreau 2021-02-20 17:06 ` Willy Tarreau 2021-02-21 11:38 ` Jari Ruusu 2021-02-21 11:38 ` Jari Ruusu 2021-02-19 16:50 ` Theodore Ts'o 2021-02-19 16:50 ` Theodore Ts'o 2021-02-18 17:16 ` Florian Fainelli 2021-02-18 17:16 ` Florian Fainelli 2021-02-18 12:51 ` Pavel Machek [this message] 2021-02-18 12:51 ` Pavel Machek 2021-02-18 16:51 ` Sasha Levin 2021-02-18 16:51 ` Sasha Levin 2021-02-18 17:21 ` Florian Fainelli 2021-02-18 17:21 ` Florian Fainelli 2021-02-18 17:53 ` Greg Kroah-Hartman 2021-02-18 17:53 ` Greg Kroah-Hartman 2021-02-18 17:57 ` Florian Fainelli 2021-02-18 17:57 ` Florian Fainelli 2021-02-18 18:20 ` Willy Tarreau 2021-02-18 18:20 ` Willy Tarreau 2021-02-18 18:36 ` Greg Kroah-Hartman 2021-02-18 18:36 ` Greg Kroah-Hartman 2021-02-18 20:16 ` Scott Branden 2021-02-18 20:16 ` Scott Branden 2021-02-18 21:00 ` Willy Tarreau 2021-02-18 21:00 ` Willy Tarreau 2021-02-18 22:38 ` Scott Branden 2021-02-18 22:38 ` Scott Branden 2021-02-18 21:39 ` Sasha Levin 2021-02-18 21:39 ` Sasha Levin 2021-02-18 22:00 ` Florian Fainelli 2021-02-18 22:00 ` Florian Fainelli 2021-02-18 22:26 ` Scott Branden 2021-02-18 22:26 ` Scott Branden 2021-02-19 8:25 ` Greg Kroah-Hartman 2021-02-19 8:25 ` Greg Kroah-Hartman 2021-02-19 15:05 ` Florian Fainelli 2021-02-19 15:05 ` Florian Fainelli 2021-02-19 15:53 ` Greg Kroah-Hartman 2021-02-19 15:53 ` Greg Kroah-Hartman 2021-02-19 17:44 ` Florian Fainelli 2021-02-19 17:44 ` Florian Fainelli 2021-02-22 14:17 ` Greg Kroah-Hartman 2021-02-22 14:17 ` Greg Kroah-Hartman 2021-02-18 17:42 ` Florian Fainelli 2021-02-18 17:42 ` Florian Fainelli 2021-02-18 18:13 ` Willy Tarreau 2021-02-18 18:13 ` Willy Tarreau 2021-02-18 10:04 ` Pavel Machek 2021-02-18 10:04 ` Pavel Machek 2021-01-29 9:49 ` Pavel Machek 2021-02-19 8:54 ` Hanjun Guo 2021-02-19 8:54 ` Hanjun Guo 2021-02-19 9:08 ` Greg Kroah-Hartman 2021-02-19 9:08 ` Greg Kroah-Hartman 2021-02-20 7:02 ` Hanjun Guo 2021-02-20 7:02 ` Hanjun Guo 2021-02-20 9:53 ` Greg Kroah-Hartman 2021-02-20 9:53 ` Greg Kroah-Hartman 2021-02-23 2:14 ` Hanjun Guo 2021-02-23 2:14 ` Hanjun Guo 2021-02-19 14:45 ` Nikolai Kondrashov 2021-02-19 14:45 ` Nikolai Kondrashov 2021-02-26 8:03 ` Hanjun Guo 2021-02-26 8:03 ` Hanjun Guo 2021-02-26 8:03 ` Hanjun Guo 2021-02-26 11:21 ` Nikolai Kondrashov 2021-02-26 11:21 ` Nikolai Kondrashov 2021-02-22 14:00 ` Nishanth Aravamudan 2021-02-22 14:00 ` Nishanth Aravamudan 2021-02-22 14:24 ` Greg Kroah-Hartman 2021-02-22 14:24 ` Greg Kroah-Hartman
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