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From: Segher Boessenkool <segher@kernel.crashing.org>
Subject: Re: [POWERPC] convert string i/o operations to C
Date: Wed, 20 Sep 2006 02:29:59 +0200
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>, paulus@samba.org,
	ppc-dev <linuxppc-dev@ozlabs.org>
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>> Why?  If "ns" <= 0 there is no I/O done...
>
> For the sake of being paranoid :) What happens on x86 if you do a  
> rep ;
> insw with a 0 count ?

Nothing, except wasting energy.


Segher