From: James Bottomley <James.Bottomley@Hansenpartnership.com>
To: Mark Brown <broonie@kernel.org>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>
Cc: "ltsi-dev@lists.linuxfoundation.org"
<ltsi-dev@lists.linuxfoundation.org>,
ksummit-discuss@lists.linuxfoundation.org
Subject: Re: [Ksummit-discuss] [Stable kernel] feature backporting collaboration
Date: Tue, 06 Sep 2016 18:34:00 -0400 [thread overview]
Message-ID: <10203253-0df5-4ff3-8cd4-9e6b38661d57@email.android.com> (raw)
In-Reply-To: <20160906222058.GS3950@sirena.org.uk>
On September 6, 2016 6:20:58 PM EDT, Mark Brown <broonie@kernel.org> wrote:
>On Tue, Sep 06, 2016 at 09:44:04PM +0200, gregkh@linuxfoundation.org
>wrote:
>> On Tue, Sep 06, 2016 at 11:30:31AM -0400, James Bottomley wrote:
>> > 3. Increase the pain. Not sure I like this, but in theory, we
>could
>> > churn the upstream API to increase the pain of upports, but
>it would
>> > also cause a lot of issues with backports.
>
>> I tried doing this in the past. It did cause pain for out-of-tree
>> modules, but then they got really good and abstracted things away so
>> that it made their future kernel porting efforts even easier than
>> before, making their need to upstream code even less. And then when
>> they did want to upstream stuff, it took more work unwinding the
>> abstraction layer.
>
>> So watch out for unintended consequences here :)
>
>The other big unintended consequence I'd worry about here is that it
>will present an obstacle to someone who wants to try to upstream
>something while working in a downstream environment - if someone is
>looking at some code but the changes for upstream are too great then it
>might make it too much work for them to try if it's not their primary
>job.
>
>I'd also worry about annoying people who are working upstream as well,
>it's annoying having things break randomly due to API changes (both as
>the submitter and as a maintainer or reviewer).
Ok, so everyone went straight for the option I didn't like. I knew I shouldn't have included it. So what about options 1 or 2, or even something I hadn't thought of?
James
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
next prev parent reply other threads:[~2016-09-06 22:34 UTC|newest]
Thread overview: 122+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-01 2:01 Alex Shi
2016-09-02 1:25 ` Levin, Alexander
2016-09-02 2:43 ` Stephen Hemminger
2016-09-02 9:59 ` Mark Brown
2016-09-02 9:54 ` Mark Brown
2016-09-02 10:16 ` [Ksummit-discuss] [LTSI-dev] " Geert Uytterhoeven
2016-09-02 14:42 ` [Ksummit-discuss] " James Bottomley
2016-09-02 14:55 ` Rik van Riel
2016-09-02 15:04 ` James Bottomley
2016-09-02 15:39 ` Rik van Riel
2016-09-02 17:06 ` Bird, Timothy
2016-09-05 1:45 ` NeilBrown
2016-09-05 11:04 ` Mark Brown
2016-09-05 22:44 ` NeilBrown
2016-09-06 0:57 ` Mark Brown
2016-09-06 5:41 ` NeilBrown
2016-09-08 18:33 ` [Ksummit-discuss] [LTSI-dev] " Bird, Timothy
2016-09-08 22:38 ` NeilBrown
2016-09-09 11:01 ` Mark Brown
2016-09-09 22:17 ` NeilBrown
2016-09-12 17:37 ` Mark Brown
2016-09-13 7:46 ` NeilBrown
2016-09-13 17:53 ` Mark Brown
2016-09-02 18:21 ` [Ksummit-discuss] " Olof Johansson
2016-09-02 23:35 ` Mark Brown
2016-09-03 5:29 ` Guenter Roeck
2016-09-03 10:40 ` Mark Brown
2016-09-04 0:10 ` Theodore Ts'o
2016-09-04 8:34 ` gregkh
2016-09-04 22:58 ` Amit Kucheria
2016-09-04 23:51 ` Theodore Ts'o
2016-09-05 12:58 ` Mark Brown
2016-09-05 11:11 ` Mark Brown
2016-09-05 14:03 ` Theodore Ts'o
2016-09-05 14:22 ` Laurent Pinchart
2016-09-06 0:35 ` Mark Brown
2016-09-06 15:30 ` James Bottomley
2016-09-06 19:44 ` gregkh
2016-09-06 22:20 ` Mark Brown
2016-09-06 22:34 ` James Bottomley [this message]
2016-09-08 18:55 ` Bird, Timothy
2016-09-08 19:19 ` gregkh
2016-09-09 10:45 ` Mark Brown
2016-09-09 11:03 ` gregkh
2016-09-09 11:48 ` Mark Brown
2016-09-06 23:23 ` Mark Brown
2016-09-06 13:34 ` Catalin Marinas
2016-09-06 16:24 ` Bartlomiej Zolnierkiewicz
2016-09-06 16:25 ` Guenter Roeck
2016-09-06 22:39 ` Mark Brown
2016-09-07 8:33 ` Jan Kara
2016-09-07 8:41 ` Jiri Kosina
2016-09-07 18:44 ` Mark Brown
2016-09-08 17:06 ` Frank Rowand
2016-09-09 10:32 ` Mark Brown
2016-09-09 15:21 ` Alex Shi
2016-09-12 15:34 ` Christoph Hellwig
2016-09-06 16:46 ` Olof Johansson
2016-09-08 8:34 ` Linus Walleij
2016-09-08 8:55 ` Vinod Koul
2016-09-09 14:32 ` Rob Herring
2016-09-09 14:23 ` Rob Herring
[not found] ` <2181684.5VzIQ6DWv4@amdc1976>
2016-09-07 9:32 ` Catalin Marinas
2016-09-07 13:07 ` Bartlomiej Zolnierkiewicz
2016-09-07 18:49 ` Mark Brown
2016-09-09 15:06 ` Alex Shi
2016-09-02 23:29 ` Mark Brown
2016-09-02 19:16 ` Levin, Alexander
2016-09-03 0:05 ` Mark Brown
2016-09-05 9:28 ` Laurent Pinchart
2016-09-21 6:58 ` Alex Shi
2016-09-21 9:23 ` gregkh
2016-09-21 14:52 ` Alex Shi
2016-09-21 15:28 ` gregkh
2016-09-21 18:50 ` Mark Brown
2016-09-22 3:15 ` Alex Shi
2016-09-21 18:22 ` Mark Brown
2016-09-21 18:54 ` Linus Walleij
2016-09-21 19:52 ` Theodore Ts'o
2016-09-22 0:43 ` Mark Brown
2016-09-22 5:20 ` gregkh
2016-09-22 12:56 ` Laurent Pinchart
2016-09-22 16:22 ` Mark Brown
2016-09-22 22:14 ` Theodore Ts'o
2016-09-23 12:28 ` Laurent Pinchart
2016-09-23 13:27 ` [Ksummit-discuss] [LTSI-dev] " Alex Shi
2016-09-23 13:40 ` Laurent Pinchart
2016-09-23 14:40 ` [Ksummit-discuss] " Mark Brown
2016-09-21 13:56 ` Theodore Ts'o
2016-09-21 15:23 ` Alex Shi
2016-09-21 15:33 ` gregkh
2016-09-21 19:16 ` Mark Brown
2016-09-02 13:47 ` Theodore Ts'o
2016-09-02 19:31 ` Levin, Alexander
2016-09-02 19:42 ` gregkh
2016-09-02 20:06 ` Levin, Alexander
2016-09-03 2:04 ` Mark Brown
2016-09-06 7:20 ` [Ksummit-discuss] [LTSI-dev] " Tsugikazu Shibata
2016-09-10 12:00 ` Theodore Ts'o
2016-09-12 16:27 ` Mark Brown
2016-09-12 17:14 ` Greg KH
2016-09-12 23:45 ` Mark Brown
2016-09-13 3:14 ` Theodore Ts'o
2016-09-13 10:14 ` Mark Brown
2016-09-13 13:19 ` Levin, Alexander
2016-09-13 6:19 ` Greg KH
2016-09-13 10:38 ` Mark Brown
2016-09-13 12:09 ` Greg KH
2016-09-13 12:20 ` Josh Boyer
2016-09-13 13:12 ` Greg KH
2016-09-13 16:23 ` Bird, Timothy
2016-09-13 19:02 ` Mark Brown
2016-09-14 14:47 ` Alex Shi
2016-09-20 5:15 ` Tsugikazu Shibata
2016-09-21 8:46 ` Alex Shi
2016-09-13 12:25 ` Geert Uytterhoeven
2016-09-13 19:21 ` Mark Brown
2016-09-14 1:49 ` Greg KH
2016-09-14 3:00 ` Guenter Roeck
2016-09-12 4:12 ` Alex Shi
2016-09-12 16:09 ` Masami Hiramatsu
2016-09-13 2:39 ` Alex Shi
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