linux-kernel - Re: [PATCH 1/2] Make efifb check that the base address is plausible on pci systems.

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Message-Id: <20100910171406.bdb4d90d.akpm@linux-foundation.org>
Date:	Fri, 10 Sep 2010 17:14:06 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Peter Jones <pjones@...hat.com>
Cc:	linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] Make efifb check that the base address is plausible
 on pci systems.

On Thu,  9 Sep 2010 15:16:48 -0400
Peter Jones <pjones@...hat.com> wrote:

> Some Apple machines have identical DMI data but different memory
> configurations for the video. Given that, check that the address in our
> table is actually within the range of a PCI BAR on a VGA deivce in the
> machine.
> 
> This also fixes up the return value from set_system(), which has
> always been wrong, but never resulted in bad behavior since there's only
> ever been one matching entry in the dmi table.
> 
> This also adds me as the efifb maintainer, since I've effectively been
> acting as such for quite some time.

And what is the impact (and importance) of this patch?  Make some
people's Mac displays work, I'd be guessing?

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