linux-kernel - Re: [PATCH] ARM: /proc/cpuinfo: Use DT machine name when possible

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Message-ID: <20140711192845.GB20015@amd.pavel.ucw.cz>
Date:	Fri, 11 Jul 2014 21:28:45 +0200
From:	Pavel Machek <pavel@....cz>
To:	Aaro Koskinen <aaro.koskinen@....fi>
Cc:	Pali Rohár <pali.rohar@...il.com>,
	Rob Herring <robherring2@...il.com>,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>,
	Russell King <linux@....linux.org.uk>,
	Sebastian Reichel <sre@...ian.org>,
	Will Deacon <will.deacon@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: /proc/cpuinfo: Use DT machine name when possible

On Thu 2014-06-19 00:10:39, Aaro Koskinen wrote:
> Hi,
> 
> On Wed, Jun 18, 2014 at 09:22:29PM +0200, Pali Rohár wrote:
> > So without this patch DT migration for Nokia N900 cannot be done 
> > without breaking userspace - which is not acceptable...
> 
> I guess the fact is that the Nokia N900 proprietary userspace has
> never worked properly with the mainline kernel without severe patching,
> so you cannot really talk about any regression. If you cannot fix
> those programs, you could still probably emulate the old Nokia kernel's
> /proc/cpuinfo by providing some text file and bind mounting it, no?

Actually, yes, it worked pretty well with some close-to-mainline
kernels.

And bind-mount on /proc/cpuinfo is beyond ugly, don't you think?
									Pavel
-- 
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