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From: richardcochran@gmail.com (Richard Cochran)
To: linux-arm-kernel@lists.infradead.org
Subject: [Ksummit-2013-discuss] ARM topic: Is DT on ARM the solution, or is there something better?
Date: Wed, 23 Oct 2013 20:23:47 +0200	[thread overview]
Message-ID: <20131023182345.GG5208@netboy> (raw)
In-Reply-To: <20131023180240.GA32563@obsidianresearch.com>

On Wed, Oct 23, 2013 at 12:02:40PM -0600, Jason Gunthorpe wrote:
> On Wed, Oct 23, 2013 at 07:47:37PM +0200, Richard Cochran wrote:
> > 
> > The effort is no more or less than is required of every other kernel
> > development.
> 
> Bollocks. User space API development is the single most difficult
> thing to do in the kernel. It is much harder than any other change,
> and stable ABI DT is elevated to *that* level. 

Yes, that is the kind of effort needed. It comes with the territory.
System calls and ioctls are added all the time. Yes, they do require
some thought and review to get them right.

Creating new DT bindings also requires effort, but I don't agree with
the idea of making a mess for the end user just to avoid this effort.

Thanks,
Richard

  reply	other threads:[~2013-10-23 18:23 UTC|newest]

Thread overview: 171+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-20 21:26 ARM topic: Is DT on ARM the solution, or is there something better? Stephen Warren
2013-10-20 22:08 ` [Ksummit-2013-discuss] " Mark Brown
2013-10-20 22:21   ` Stephen Warren
2013-10-21  1:00     ` Nicolas Pitre
2013-10-21  9:15       ` Thierry Reding
2013-10-21 14:57         ` Maxime Bizon
2013-10-21 17:07         ` Richard Cochran
2013-10-21 20:24           ` Stephen Warren
2013-10-22  9:24           ` Thierry Reding
2013-10-23 17:30             ` Richard Cochran
2013-10-23 19:06               ` Thierry Reding
2013-10-22 17:22           ` Jason Gunthorpe
2013-10-21 20:29       ` Stephen Warren
2013-10-21 20:40         ` Nicolas Pitre
2013-10-22  9:39           ` Thierry Reding
2013-10-22 15:04             ` Matt Porter
2013-10-22 17:13               ` Jason Gunthorpe
2013-10-22 17:49                 ` Guenter Roeck
2013-10-23  8:06                 ` Richard Cochran
2013-10-23  9:49                   ` Thierry Reding
2013-10-23 17:16                     ` Richard Cochran
2013-10-23 17:25                       ` Matt Porter
2013-10-23 18:05                         ` Richard Cochran
2013-10-23 18:57                           ` Nicolas Pitre
2013-10-23 20:12                           ` Matt Porter
2013-10-23 17:55                       ` Nicolas Pitre
2013-10-23 18:13                         ` Richard Cochran
2013-10-23 20:35                           ` Thierry Reding
2013-10-23 17:29                   ` Jason Gunthorpe
2013-10-23 17:45                     ` Richard Cochran
2013-10-23 18:46                       ` Maxime Bizon
2013-10-23 18:51                         ` Richard Cochran
2013-10-23 19:12                           ` Maxime Bizon
2013-10-24  9:52                         ` Grant Likely
2013-10-24 11:33                           ` Maxime Bizon
2013-10-24 11:47                             ` David Woodhouse
2013-10-24 12:13                               ` Maxime Bizon
2013-10-24 12:22                                 ` David Woodhouse
2013-10-24 12:22                                 ` David Woodhouse
2013-10-24 13:05                                   ` Maxime Bizon
2013-10-24 13:14                                     ` David Woodhouse
2013-10-24 13:46                                       ` Maxime Bizon
2013-10-24 19:52                                         ` Matt Porter
2013-10-24 20:11                                       ` Matt Sealey
2013-10-25  9:00                                 ` Stephen Warren
2013-10-24 12:23                               ` Thierry Reding
2013-10-24 12:29                                 ` David Woodhouse
2013-10-24 13:00                                 ` Maxime Bizon
2013-10-24 13:10                                   ` David Woodhouse
2013-10-24 13:30                                     ` Maxime Bizon
2013-10-24 14:05                                       ` David Woodhouse
2013-10-24 14:19                                         ` Thierry Reding
2013-10-24 14:30                                           ` David Woodhouse
2013-10-24 14:38                                             ` Thierry Reding
2013-10-24 16:39                                             ` Nicolas Pitre
2013-10-24 16:45                                               ` David Woodhouse
2013-10-24 17:08                                                 ` Nicolas Pitre
2013-10-24 18:15                                                 ` jonsmirl at gmail.com
2013-10-24 14:32                                           ` Richard Cochran
2013-10-24 14:47                                             ` Thierry Reding
2013-10-24 15:37                                             ` Nicolas Pitre
2013-10-24 14:33                                           ` Maxime Bizon
2013-10-24 14:57                                             ` Thierry Reding
2013-10-24 16:27                                         ` Nicolas Pitre
2013-10-24 14:12                                     ` Thierry Reding
2013-10-24 14:22                                       ` David Woodhouse
2013-10-24 14:23                                         ` Thierry Reding
2013-10-24 14:38                                           ` David Woodhouse
2013-10-24 14:58                                             ` Thierry Reding
2013-10-24 19:58                                         ` Matt Porter
2013-10-24 23:54                                       ` Grant Likely
2013-10-25  8:52                             ` Stephen Warren
2013-10-25  9:16                               ` Thierry Reding
2013-10-23 17:47                     ` Richard Cochran
2013-10-23 17:58                       ` Nicolas Pitre
2013-10-23 18:02                       ` Jason Gunthorpe
2013-10-23 18:23                         ` Richard Cochran [this message]
2013-10-24  8:34                           ` Thierry Reding
2013-10-24 15:00                             ` Richard Cochran
2013-10-24 19:46                               ` Matt Porter
2013-10-23 18:01                     ` Guenter Roeck
2013-10-23 18:25                       ` Jason Gunthorpe
2013-10-23 18:30                         ` Richard Cochran
2013-10-23 18:54                           ` Jason Gunthorpe
2013-10-24  8:06                             ` Sascha Hauer
2013-10-24  8:17                               ` Thierry Reding
2013-10-24  8:52                                 ` Sascha Hauer
2013-10-23 23:29                           ` Ben Hutchings
2013-10-24  7:32                             ` Richard Cochran
2013-10-24  9:35                               ` Ben Hutchings
2013-10-24 12:02                         ` Andre Heider
2013-10-24  8:01                     ` Sascha Hauer
2013-10-24  8:11                       ` Thierry Reding
2013-10-22 17:42               ` Nicolas Pitre
2013-10-22 18:21                 ` Peter Maydell
2013-10-22 18:36                   ` Nicolas Pitre
2013-10-22 19:16                   ` Guenter Roeck
2013-10-22 20:12                 ` Thierry Reding
2013-10-22 20:41                   ` Nicolas Pitre
2013-10-22 21:39                     ` Jason Gunthorpe
2013-10-23  8:50                     ` Thierry Reding
2013-10-23  9:02                     ` Thierry Reding
2013-10-22 20:42                   ` Matt Porter
2013-10-23 10:04                     ` Thierry Reding
2013-10-23 11:48                       ` Peter Maydell
2013-10-23 16:29                       ` Matt Porter
2013-10-22  6:47       ` David Brown
2013-10-20 23:11 ` Russell King - ARM Linux
2013-10-20 23:44   ` [Ksummit-2013-discuss] " Guenter Roeck
2013-10-20 23:51     ` Russell King - ARM Linux
2013-10-21  0:13       ` Guenter Roeck
2013-10-21 20:05     ` Stephen Warren
2013-10-22  9:45       ` Thierry Reding
2013-10-21  8:32   ` Sascha Hauer
2013-10-21  8:48     ` Russell King - ARM Linux
2013-10-21  9:27       ` Sascha Hauer
     [not found]         ` < CAF6AEGtt_2sStiZCNBp9btxevWghSwLZZBdN6ir8eUpX1FXrCQ@mail.gmail.com>
     [not found]           ` < 20131024072811.GS30088@pengutronix.de>
     [not found]             ` < CAF6AEGuEho9Ms7ifTE-EmBoQ-=_AXgvGcJxi5qEC0vsZ+H9C+A@mail.gmail.com>
2013-10-21  9:57         ` Russell King - ARM Linux
2013-10-21 10:24           ` Thierry Reding
2013-10-21 10:30             ` Russell King - ARM Linux
2013-10-21 10:41               ` Thierry Reding
2013-10-22  9:19             ` [Ksummit-2013-discuss] " Mark Brown
2013-10-21 20:09           ` Stephen Warren
2013-10-21 23:18           ` Sascha Hauer
2013-10-24  1:14         ` Rob Clark
2013-10-24  7:28           ` Sascha Hauer
2013-10-24  9:00             ` Thierry Reding
2013-10-24  9:21               ` Sascha Hauer
2013-10-24 21:21             ` Rob Clark
2013-10-25  9:24               ` Thierry Reding
2013-11-18 12:45               ` Russell King - ARM Linux
2013-11-18 15:37                 ` Thierry Reding
2013-11-18 16:11                   ` Russell King - ARM Linux
2013-11-18 16:18                     ` Thierry Reding
2013-11-18 18:43                     ` Mark Brown
2013-11-19 13:54                 ` Grant Likely
2013-10-21 10:04       ` Thierry Reding
2013-10-21 10:57       ` [Ksummit-2013-discuss] " Laurent Pinchart
2013-10-21 10:00   ` Laurent Pinchart
2013-10-21 11:18   ` Sebastian Hesselbarth
2013-10-21  8:54 ` Thierry Reding
2013-10-21 20:19   ` Stephen Warren
2013-10-21 22:51     ` [Ksummit-2013-discuss] " Guenter Roeck
2013-10-22 10:27       ` James Hogan
2013-10-22 16:31         ` Jonathan Cameron
2013-10-22 16:49           ` Guenter Roeck
2013-10-22 20:35             ` Thierry Reding
2013-10-22 21:10               ` Guenter Roeck
2013-10-23  7:57                 ` Thierry Reding
2013-10-23 16:01                   ` Guenter Roeck
2013-10-23 21:07                     ` Thierry Reding
2013-10-24 15:18                       ` Guenter Roeck
2013-11-01 10:36                         ` Thierry Reding
2013-11-01 13:30                           ` Guenter Roeck
2013-10-22 20:48         ` Thierry Reding
2013-10-22 10:25     ` Thierry Reding
2013-10-22 21:44 ` Matt Sealey
2013-10-23 11:41   ` Peter Maydell
2013-10-23 23:02     ` [Ksummit-2013-discuss] " Rob Herring
2013-11-18 12:26 ` Thierry Reding
2013-11-18 13:40   ` Grant Likely
2013-11-18 13:57     ` Mark Brown
2013-11-18 15:29       ` Thierry Reding
2013-11-18 15:50         ` Mark Brown
2013-11-18 16:06           ` Thierry Reding
2013-11-18 17:16             ` Stephen Warren
2013-11-19  9:35               ` Thierry Reding
2013-11-19 17:27                 ` Stephen Warren
2013-11-20 13:29                   ` Thierry Reding
2013-11-18 18:35             ` Mark Brown
2013-11-19  9:11               ` Thierry Reding
2013-11-19 10:16                 ` Mark Brown

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