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List:       linux-s390
Subject:    Re: [PATCH] math-emu: correct test for downshifting fraction in
From:       David Miller <davem () davemloft ! net>
Date:       2010-07-21 1:45:48
Message-ID: 20100720.184548.250802682.davem () davemloft ! net
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From: Mikael Pettersson <mikpe@it.uu.se>
Date: Mon, 19 Jul 2010 23:58:42 +0200

> The kernel's math-emu code contains a macro _FP_FROM_INT() which is
> used to convert an integer to a raw normalized floating-point value.
> It does this basically in three steps:
 ...
> The fix is simple: the exponent comparison used to determine if the
> fraction should be downshifted must be "<=" not "<".
> 
> I'm sending a kernel module to test this as a reply to this message.
> There are also SPARC user-space test cases in the GCC bug entry.
> 
> Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>

Applied and I'll make sure this gets into -stable too.

Thanks!
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