linux-kernel - Re: [PATCH] mtd/nand: use string library

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Message-ID: <1327684589.12089.22.camel@joe2Laptop>
Date:	Fri, 27 Jan 2012 09:16:29 -0800
From:	Joe Perches <joe@...ches.com>
To:	Akinobu Mita <akinobu.mita@...il.com>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	Jiandong Zheng <jdzheng@...adcom.com>,
	Scott Branden <sbranden@...adcom.com>,
	David Woodhouse <dwmw2@...radead.org>,
	linux-mtd@...ts.infradead.org
Subject: Re: [PATCH] mtd/nand: use string library

On Fri, 2012-01-27 at 23:24 +0900, Akinobu Mita wrote:
> - Use memchr_inv to check if the data contains all 0xFF bytes.
>   It is faster than looping for each byte.

Stupid question:

Are there any mtd devices modified that are slower
at 64 bit accesses than repeated 8 bit accesses?

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