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From: Christian Brauner <christian.brauner@ubuntu.com>
To: Thomas Gleixner <tglx@linutronix.de>, dianders@chromium.org
Cc: Joel Fernandes <joelaf@google.com>,
	Barret Rhoden <brho@google.com>,
	ksummit <ksummit-discuss@lists.linuxfoundation.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jonathan Nieder <jrn@google.com>,
	Tomasz Figa <tfiga@chromium.org>,
	Han-Wen Nienhuys <hanwen@google.com>,
	Theodore Tso <tytso@google.com>,
	David Rientjes <rientjes@google.com>,
	Dmitry Torokhov <dtor@chromium.org>,
	Dmitry Vyukov <dvyukov@google.com>
Subject: Re: [Ksummit-discuss] Allowing something Change-Id (or something like it) in kernel commits
Date: Wed, 28 Aug 2019 14:34:13 +0200
Message-ID: <20190828123412.vng4m7kqxirhxxe3@wittgenstein> (raw)
In-Reply-To: <alpine.DEB.2.21.1908270133190.1939@nanos.tec.linutronix.de>

On Tue, Aug 27, 2019 at 01:43:23AM +0200, Thomas Gleixner wrote:
> On Mon, 26 Aug 2019, Theodore Y. Ts'o wrote:
> > On Mon, Aug 26, 2019 at 03:06:43PM -0700, Doug Anderson wrote:
> > > 2. If, as I expect, Change-Id as part of the patch stays NAKed then I
> > > will modify the tools I use to post upstream (currently patman) to
> > > encode the Change-Id.  My naive proposal would be:
> > > 
> > > Message-Id: ChangeId-YYYY-MMDD-HHMMSS-PatchNum
> > > 
> > > If I try this and it works for me then I will post out and suggest
> > > that any other like-minded people encode Change-Id into Message-Id in
> > > a similar way.
> > 
> > ... and I would expect patches with this would get NACK'ed because
> > they would be just as useless as Change-Id's are perceived to be
> > today.  People who are gaming the rules will tend not to looked upon
> > favorably; the same will apply to their patches.
> > 
> > BTW, the Message-Id you've listed above is not legal, per RFC-5322.  A
> > msg-id has to look like a e-mail address (left-hand-side@example.com).
> > So something like this is legal as a message id:
> > 
> > I3268f9036512c4378cde1da37e0612b43ed4d384@linux-review.googlesource.com
> > 
> > ... and indeed, that's more useful, because it tells us how to
> > interpret I3268f9036512c4378cde1da37e0612b43ed4d384 --- it's a
> > Change-Id assigned by the linux-review.googlesource.com Gerrit server.
> > 
> > In contrast a bare "I3268f9036512c4378cde1da37e0612b43ed4d384" is
> > going to be presumed to be useless.  And in fact, a Google search for
> > this ID returns *nothing*.  Yet visiting the link
> > https://linux-review.googlesource.com/c/1158 actually returns
> > something useful.   That's why the latter is superior to the former.
> 
> That's fine, but the point is that nobody will prevent you from frobbing
> your message-id's in a way which encodes other information into it as long
> as the message-id is RFC compliant. We simply don't care because the result
> is just a message-id as any other in the mail header of your patch
> submission,
> 
> I agree that a full gerrit link is more useful, but what Doug described is
> not connected to a gerrit server at all. He just (ab)uses the tooling which
> allows him to create a unique ID to track versions of his patches.
> 
> Actually not the worst idea. If the result is not part of the changelog and
> just part of the email then generating the id with
> 
>      id = make_msgid(ChangeId)
> 
> will still generate something useful for everyone because we can add:
> 
>      Link: https://lore.kernel.org/lkml/$id
> 
> and Doug can grep the archives for $id.
> 
> I truly don't care whether the Message-ID header contains extra information
> as long as it is properly formatted.

This whole thread is rather complex at this point. I have been sick for
a few days now and couldn't follow it too closely because of that. At
this point it kinda feels like there's some agreement on using Link:
instead of Change-Id: but I'm not sure what best practives are for
generating this Link: including the message id and wher it needs to be
placed (commit message, after ---, only in email header?). So the most
important task is to document what exactly is considered good practice
somewhere (probably in the kernel docs):

@Doug, are you planning on sending a docs patch for this or sm?

Christian

  reply index

Thread overview: 105+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-22 23:39 Doug Anderson
2019-08-23  0:03 ` Brendan Higgins
2019-08-23  0:17 ` Linus Torvalds
2019-08-23  0:30   ` Olof Johansson
2019-08-23  0:43     ` Guenter Roeck
2019-08-23  0:45       ` Olof Johansson
2019-08-23  1:05         ` Olof Johansson
2019-08-23  1:09           ` Dmitry Torokhov
2019-08-23  1:36         ` Theodore Y. Ts'o
2019-08-23  2:58           ` Linus Torvalds
2019-08-23  3:03             ` Linus Torvalds
2019-08-23 13:15               ` Sean Paul
2019-08-23 15:18                 ` Theodore Y. Ts'o
2019-08-23 15:31                   ` Sean Paul
2019-08-23 15:48                     ` Thomas Gleixner
2019-08-23 16:19                       ` Dmitry Torokhov
2019-08-23 16:35                         ` Joel Fernandes
2019-08-23 16:45                           ` Doug Anderson
2019-08-23 16:54                             ` Joel Fernandes
2019-08-23 18:00                               ` Doug Anderson
2019-08-23 19:08                                 ` Joel Fernandes
2019-08-23 19:15                                   ` Joel Fernandes
2019-08-23 19:23                                     ` Thomas Gleixner
2019-08-23 19:31                                       ` Joel Fernandes
2019-08-24 16:53                                   ` Doug Anderson
2019-08-23 16:46                           ` Dmitry Torokhov
2019-08-23 19:17                             ` Thomas Gleixner
2019-08-23 19:38                               ` Laurent Pinchart
2019-08-23 21:15                                 ` Thomas Gleixner
2019-08-23 21:25                                   ` Mark Brown
2019-08-24 23:13                                   ` Theodore Y. Ts'o
2019-08-25  7:09                                     ` Thomas Gleixner
2019-08-26 22:05                                       ` Thomas Gleixner
2019-08-28  8:50                                         ` Thomas Gleixner
2019-08-23 20:02                               ` Christian Brauner
2019-08-24 16:34                                 ` Doug Anderson
2019-08-24 18:11                                   ` Linus Torvalds
2019-08-24 23:04                                     ` Theodore Y. Ts'o
2019-08-25  3:11                                       ` Greg Kroah-Hartman
2019-08-27 10:51                                         ` Mark Brown
2019-09-09  8:14                                           ` Michael Ellerman
2019-09-09 12:09                                             ` Mark Brown
2019-08-26 17:13                                     ` Doug Anderson
2019-08-26 17:30                                       ` Joel Fernandes
2019-08-26 21:35                                         ` Doug Anderson
2019-08-26 21:51                                           ` Thomas Gleixner
2019-08-26 22:06                                             ` Doug Anderson
2019-08-26 22:19                                               ` Thomas Gleixner
2019-08-26 23:02                                           ` Theodore Y. Ts'o
2019-08-26 23:11                                             ` Doug Anderson
2019-09-16 14:11                                               ` Christian Brauner
2019-09-16 17:43                                               ` Al Viro
2019-09-16 18:05                                                 ` Doug Anderson
2019-08-26 23:43                                             ` Thomas Gleixner
2019-08-28 12:34                                               ` Christian Brauner [this message]
2019-08-27  0:29                                             ` Dmitry Vyukov
2019-08-27  6:06                                               ` Thomas Gleixner
2019-08-27 13:24                                                 ` Dmitry Vyukov
2019-08-27 13:48                                                   ` Greg Kroah-Hartman
2019-08-27 14:01                                                     ` Guenter Roeck
2019-08-27 14:09                                                       ` Thomas Gleixner
2019-08-27 15:33                                                         ` Greg Kroah-Hartman
2019-08-27 15:42                                                           ` Thomas Gleixner
2019-08-27 18:55                                                           ` Konstantin Ryabitsev
2019-08-27 19:53                                                             ` Greg Kroah-Hartman
2019-08-27 21:34                                                               ` Joel Fernandes
2019-08-27 21:38                                                                 ` Joel Fernandes
2019-08-28  9:08                                                                 ` Greg Kroah-Hartman
2019-08-28  9:25                                                                   ` Jani Nikula
2019-08-28 10:04                                                                   ` Martin K. Petersen
2019-08-28 10:53                                                                     ` Thomas Gleixner
2019-08-28 12:46                                                                       ` Martin K. Petersen
2019-08-28 10:42                                                                   ` Mark Brown
2019-08-28 11:41                                                                     ` Greg Kroah-Hartman
2019-08-28 12:22                                                                   ` Christian Brauner
2019-08-28 12:38                                                                   ` Joel Fernandes
2019-08-28 13:58                                                                     ` Theodore Y. Ts'o
2019-08-28 20:39                                                                       ` Doug Anderson
2019-08-28 20:46                                                                         ` Johannes Berg
2019-08-28 21:00                                                                           ` Doug Anderson
2019-08-28 22:15                                                                         ` Rob Herring
2019-08-27 17:34                                                       ` Geert Uytterhoeven
2019-08-27 18:50                                                         ` Guenter Roeck
2019-08-27 14:06                                                   ` Thomas Gleixner
2019-08-27  7:33                                               ` Geert Uytterhoeven
2019-08-27 13:30                                                 ` Dmitry Vyukov
2019-08-27 14:28                                                   ` Paul E. McKenney
2019-08-27 15:06                                                     ` Thomas Gleixner
2019-08-27 15:25                                                       ` Paul E. McKenney
2019-08-28  8:57                                                         ` Dan Carpenter
2019-08-23 15:49                     ` Doug Anderson
2019-08-23 15:54                       ` Thomas Gleixner
2019-08-23 15:59                         ` Thomas Gleixner
2019-08-23 16:38                           ` Doug Anderson
2019-08-23 16:50                             ` Andrew Lunn
2019-08-23 17:50                               ` Doug Anderson
2019-08-23 18:10               ` Konstantin Ryabitsev
2019-08-26 22:19               ` Paul Mackerras
2019-08-27  7:02                 ` Stephen Rothwell
2019-08-23  9:09             ` Vlastimil Babka
2019-08-23 12:48               ` Bhaskar Chowdhury
2019-08-23  1:01   ` Dmitry Torokhov
2019-08-23  1:07   ` Doug Anderson
2019-08-23  1:18     ` Joel Fernandes
2019-09-05  8:12 ` Eric Wong

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