[U-Boot] [PATCH 4/5 V2] NAND: Make page, erase, oob size available via cmd_nand

[Marek Vasut]

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