From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [PATCH 2/2] math128, x86_64: Implement {mult,add}_u128 in 64bit
 asm
Date: Wed, 25 Apr 2012 20:10:39 +0200
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To: Andy Lutomirski <luto@amacapital.net>
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Linus Torvalds <torvalds@linux-foundation.org>, Andrew Morton <akpm@linux-foundation.org>, Juri Lelli <juri.lelli@gmail.com>, Ingo Molnar <mingo@kernel.org>, Thomas Gleixner <tglx@linutronix.de>, "H. Peter Anvin" <hpa@zytor.com>

On Wed, 2012-04-25 at 11:02 -0700, Andy Lutomirski wrote:
> 
> > +static inline mul_u64_u64(u64 a, u64 b)
> 
> I think you're missing a return type and a 't'. 

argh, that's what you get for not actually compiling with an old enough
gcc :/

Fixed, thanks!