linux-kernel - Re: [PATCH] arm: remove unused code in delay.S

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Date:	Mon, 14 Sep 2009 01:21:00 +0100
From:	Jamie Lokier <jamie@...reable.org>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Marek Vasut <marek.vasut@...il.com>,
	Felipe Contreras <felipe.contreras@...il.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] arm: remove unused code in delay.S

Russell King - ARM Linux wrote:
> On Sun, Sep 13, 2009 at 11:28:47PM +0200, Marek Vasut wrote:
> > >  		bhi	__delay
> > >  		mov	pc, lr
> > >  ENDPROC(__udelay)
> > > 
> > Hi
> > 
> > why was this code there in the first place ?
> 
> To make the delay loop more stable and predictable on older CPUs.

So why has it been commented out, if it's needed for that?

-- Jamie
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