From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marek.vasut@gmail.com>
Date: Tue, 27 Sep 2011 22:07:05 +0200
Subject: [U-Boot] [PATCH 4/5 V2] NAND: Make page, erase,
	oob size available via cmd_nand
In-Reply-To: <4E82292D.2090504@freescale.com>
References: <1315800250-19761-5-git-send-email-marek.vasut@gmail.com>
	<201109272138.59945.marek.vasut@gmail.com>
	<4E82292D.2090504@freescale.com>
Message-ID: <201109272207.05434.marek.vasut@gmail.com>
List-Id: <u-boot.lists.denx.de>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: u-boot@lists.denx.de

On Tuesday, September 27, 2011 09:51:09 PM Scott Wood wrote:
> On 09/27/2011 02:38 PM, Marek Vasut wrote:
> > On Tuesday, September 27, 2011 09:01:53 PM Scott Wood wrote:
> >> On Thu, Sep 22, 2011 at 03:57:26AM +0200, Marek Vasut wrote:
> >>> +	/* Set geometry info */
> >>> +	memset(buf, 0, bufsz);
> >>> +	sprintf(buf, "%x", nand->writesize);
> >>> +	setenv("nand_writesize", buf);
> >>> +
> >>> +	memset(buf, 0, bufsz);
> >>> +	sprintf(buf, "%x", nand->oobsize);
> >>> +	setenv("nand_oobsize", buf);
> >>> +
> >>> +	memset(buf, 0, bufsz);
> >>> +	sprintf(buf, "%x", nand->erasesize);
> >>> +	setenv("nand_erasesize", buf);
> >> 
> >> Why the memsets?
> > 
> > To clear the memory from previous usage ?
> 
> What part of the previous usage will both survive the sprintf() and be
> looked at by setenv()?

The part of data that are copied in _do_set_env() ?

> 
> -Scott