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Message-ID: <20100621204646.GJ3217@redhat.com>
Date: Mon, 21 Jun 2010 16:46:46 -0400
From: Don Zickus <dzickus@...hat.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Prarit Bhargava <prarit@...hat.com>, linux-kernel@...r.kernel.org,
Randy Dunlap <randy.dunlap@...cle.com>,
alan@...rguk.ukuu.org.uk
Subject: Re: [PATCH] Add TAINT_HARDWARE_UNSUPPORTED flag
On Mon, Jun 21, 2010 at 01:00:08PM -0700, Andrew Morton wrote:
> > Internally here that is how we planned on using the flag. We weren't sure
> > if upstream would accept that piece or not, so we started with the flag
> > for now to at least reserve the bit.
> >
> > But I can see your point about the other printk being a little
> > user-hostile if someone forgot to call the wrapper function.
> >
> > I can respin with the wrapper function (Prarit is on vacation)
>
> Not telling the user _which_ hardware is causing the problem is daft.
>
> > or go with
> > Alan's idea of just reserving the upper few bits.
>
> um. Given that the vendor needs to patch the individual drivers to
> indicate ther unsupported status, why not just patch in the taint
> changes as well?
Well we wanted to secure a bit flag first, so we don't bite ourselves later and
have to change the userspace tools.
Cheers,
Don
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