Re: [Xen-devel] question on the use of fs in evtchn.c

[ron minnich <rminnich@xxxxxxxx>]

On Tue, 10 Aug 2004, Christian Limpach wrote:

> 
> > In the plan 9 port this is:
> >        while ( (l1i = ffs(l1)) > 0 )
> 
> If your ffs indeed returns -1 if l1 is 0, shouldn't your test be >= 0?
> Or does it never return 0?

no, this began as my misreading of how ffs worked (I thought it worked 
like the x86 instruction but it is 1, not 0- based) and proceeded to 
further errors on my part :-)

sorry!

ron

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