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Message-ID: <f09ce50c-6721-c9d3-4f27-3f98a2d0b183@gmail.com>
Date: Mon, 20 Jan 2020 21:20:55 -0600
From: Frank Rowand <frowand.list@...il.com>
To: Steve McIntyre <steve.mcintyre@...aro.org>
Cc: Alexandre Torgue <alexandre.torgue@...com>, robh+dt@...nel.org,
Masahiro Yamada <masahiroy@...nel.org>,
Michal Marek <michal.lkml@...kovi.net>,
david@...son.dropbear.id.au, sjg@...omium.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-kbuild@...r.kernel.org, devicetree-compiler@...r.kernel.org
Subject: Re: [RFC PATCH 0/3] Add device tree build information
On 1/20/20 12:28 PM, Steve McIntyre wrote:
> Hi Frank!
>
> Thanks for the link back to the previous discussion, it's very
> helpful.
>
> On Mon, Jan 20, 2020 at 10:14:22AM -0600, Frank Rowand wrote:
>> On 1/20/20 4:56 AM, Alexandre Torgue wrote:
>
> ...
>
>>> and the date). There are no "dtb versions", and "absolute/relative"
>>> path which created concerns. One remaining concern is "reproducible
>>
>> Here is an example of the info from one of my builds:
>>
>> From Linux 5.5.0-rc2-dirty by frowand the Mon Jan 20 09:50:58 CST 2020.
>>
>> The information 'Linux 5.5.0-rc2-dirty' is precisely what was most objected
>> to in my proposal.
>
> ACK. :-( I'm surprised to see so much push-back on what looks like a
> simple piece of information here.
Me too.
>
> I've had users *specifically* asking for this kind of identification
> so that they can verify the version of the DTB they're using at
> runtime. Right now it can be a guessing game, which does not help
> people trying to debug problems.
>
> Cheers,
>
If the information was reported as debug information via pr_debug(),
would that work for your use case? Or would the users' kernels
not have debug enabled in the configuration?
-Frank
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