linux-kernel - Re: [PATCH V3 01/29] bitops: add parity functions

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Date:	19 Apr 2016 14:45:01 -0400
From:	"George Spelvin" <linux@...izon.com>
To:	linux-kernel@...r.kernel.org, zengzhaoxiu@....com
Cc:	akpm@...ux-foundation.org, arnd@...db.de, dvlasenk@...hat.com,
	linux-arch@...r.kernel.org, linux@...izon.com, martink@...teo.de,
	mingo@...nel.org, sasha.levin@...cle.com, yury.norov@...il.com,
	zhaoxiu.zeng@...il.com
Subject: Re: [PATCH V3 01/29] bitops: add parity functions

> Add generic odd parity functions, adapted from
> "https://graphics.stanford.edu/~seander/bithacks.html#ParityParallel"

Given a PARITY_MAGIC of 0x6996, this is even parity, not odd.

(Which it should be; an XOR of all bits is the "natural" form.)