linux-kernel - Re: [PATCH 07/10] bitops: Provide compile time HWEIGHT{8,16,32,64}

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Message-ID: <520f0cf11001290313t3aa14cb0i4bc971b537709ccf@mail.gmail.com>
Date:	Fri, 29 Jan 2010 12:13:25 +0100
From:	John Kacur <jkacur@...hat.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	eranian@...gle.com, fweisbec@...il.com, paulus@...ba.org,
	mingo@...e.hu, davem@...emloft.net, robert.richter@....com,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 07/10] bitops: Provide compile time HWEIGHT{8,16,32,64}

On Fri, Jan 29, 2010 at 12:05 PM, Peter Zijlstra <peterz@...radead.org> wrote:
> On Fri, 2010-01-29 at 11:32 +0100, John Kacur wrote:
>>
>> I like it. Maybe provide a comment that this provides the Hamming weight, it
>> took me a second to realize what this was.
>
> its called _H_weight for crying out loud.
>

Ha. :) You're right, but it's always obvious when your hands are dirty with
algorithms that can use it. Easy to forget when you're working on other stuff.
Put the term in there so we can google it more easily.
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