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From: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
To: Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
Cc: Rob Herring <robherring2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Frank Rowand
	<frowand.list-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	"grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org"
	<grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	Michal Marek <mmarek-AlSwsSmVLrQ@public.gmane.org>,
	Ian Campbell
	<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>,
	Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
	Leif Lindholm
	<leif.lindholm-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	Pawel Moll <Pawel.Moll-5wv7dgnIgG8@public.gmane.org>,
	"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
	<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
	"linux-kbuild-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-kbuild-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Linux Kernel list
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [patch 2/7] dt: dtb version: document chosen/dtb-info node binding
Date: Thu, 19 Mar 2015 18:53:06 +0000	[thread overview]
Message-ID: <20150319185306.GB11683@leverpostej> (raw)
In-Reply-To: <20150319184139.GG8656-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>

> And yes, you are right - anything like this which we add immediately
> becames a user ABI which becomes *very* difficult to change later, so
> in order to accept anything like this, we have to be absolutely sure
> that this is something we really really really really want to do.  Let
> me put it another way: once this is accepted, it will probably be
> impossible to ever change it.

Agreed.

Having debugged issues with bad DTBs in the past without having this
information, I don't see it as being majorly helpful -- the DTB is
relatively simple and can be decompiled.

You don't gain much from being able to read which file it was built from
on a random server you don't have access to, and if you do have access
to the source it's relatively easy to discover the file it was built
from.

So unless there's a really compelling case for this, I don't see the
point in having it.

Mark.
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  parent reply	other threads:[~2015-03-19 18:53 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-19  3:29 [patch 0/7] dt: dtb version: add version info to dtb Frank Rowand
2015-03-19  3:31 ` [patch 1/7] dt: dtb version: consolidate documentation of chosen node bindings Frank Rowand
2015-03-19 13:40   ` Mark Rutland
2015-03-19  3:33 ` [patch 2/7] dt: dtb version: document chosen/dtb-info node binding Frank Rowand
2015-03-19 13:23   ` Rob Herring
2015-03-19 16:42     ` Frank Rowand
2015-03-19 18:41     ` Russell King - ARM Linux
     [not found]       ` <20150319184139.GG8656-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2015-03-19 18:53         ` Mark Rutland [this message]
2015-03-19 19:01       ` Frank Rowand
     [not found]         ` <550B1D16.7000108-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-03-19 19:32           ` Russell King - ARM Linux
2015-03-19 20:44             ` Frank Rowand
     [not found]               ` <550B3549.1030808-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-03-20 14:42                 ` Mark Rutland
2015-03-19 13:49   ` Mark Rutland
2015-03-19 17:02     ` Frank Rowand
2015-03-19 17:23       ` Geert Uytterhoeven
2015-03-19 19:12       ` Mark Rutland
2015-03-19 21:27         ` Frank Rowand
2015-03-20 15:25           ` Mark Rutland
     [not found]   ` <550A4382.4030209-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-03-19 17:37     ` Frank Rowand
     [not found] ` <550A42AC.8060104-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-03-19  3:34   ` [patch 3/7] dt: dtb version: arm dts Makefile Frank Rowand
2015-03-19  3:36 ` [patch 4/7] dt: dtb version: kernel Makefile Frank Rowand
2015-03-19  3:38 ` [patch 5/7] dt: dtb version: kbuild scripts Frank Rowand
2015-03-19  3:39 ` [patch 6/7] dt: dtb version: dtsi files Frank Rowand
2015-03-19 18:46   ` Sascha Hauer
2015-03-19  3:41 ` [patch 7/7] dt: dtb version: report dtb info Frank Rowand
2015-03-19  8:12 ` [patch 0/7] dt: dtb version: add version info to dtb Gregory CLEMENT
2015-03-19 17:05   ` Frank Rowand
2015-03-20 13:46 ` Rob Herring
2015-03-20 19:14   ` Uwe Kleine-König

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