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Date: Tue, 18 Sep 2007 10:11:47 -0500
From: Scott Wood <scottwood@freescale.com>
To: Kumar Gala <galak@kernel.crashing.org>
Subject: Re: [PATCH 16/28] 8xx: Don't call non-existent Soft_emulate_8xx from
	SoftwareEmulation.
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On Tue, Sep 18, 2007 at 10:08:50AM -0500, Kumar Gala wrote:
> 
> On Sep 17, 2007, at 11:57 AM, Scott Wood wrote:
> 
> >On arch/ppc, Soft_emulate_8xx was used when full math emulation was
> >turned off to emulate a minimal subset of floating point load/store
> >instructions, to avoid needing a soft-float toolchain.  This function
> >is called, but not present, on arch/powerpc, causing a build error
> >if floating point emulation is turned off.
> >
> >As:
> >1. soft-float toolchains are now common,
> >2. partial emulation could mislead someone into thinking they have
> >a soft-float userspace because things usually work, only to have it
> >fail when actual FP gets executed under unusual circumstances, and
> >3. full emulation is still available for those who need to run
> >non-soft-float userspace,
> >
> >I'm deleting the call rather than moving Soft_emulate_8xx over to
> >arch/powerpc.
> >
> >Signed-off-by: Scott Wood <scottwood@freescale.com>
> 
> I'm still not in favor of this and think we should move the  
> Soft_emulate_8xx code over.

Any particular reasons that outweigh the reasons I gave, especially #2?

-Scott