Patch for bz#11589 - jn calculation

[David Miller]

From: Andreas Schwab <schwab@redhat.com>
Date: Wed, 28 Sep 2011 09:35:55 +0200

> David Miller <davem@davemloft.net> writes:
> 
>> I've been getting getting testsuite failures on sparc in this area
>> ever since the powerpc changes went in.
> 
> An older build on sparc (which didn't yet contain these tests) showed no
> failures.

That's correct, the failures are new.