linux-kernel - Re: [PATCH] mtd: nand: remove NAND_MAX_OOBSIZE and NAND_MAX

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Date:	Fri, 27 Dec 2013 23:07:24 +0800
From:	Huang Shijie <shijie8@...il.com>
To:	Caizhiyong <caizhiyong@...ilicon.com>
Cc:	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	Brian Norris <computersforpeace@...il.com>,
	David Woodhouse <David.Woodhouse@...el.com>,
	Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Huang Shijie <b32955@...escale.com>,
	Rashika Kheria <rashika.kheria@...il.com>,
	"Gupta, Pekon" <pekon@...com>,
	"Wanglin (Albert)" <albert.wanglin@...ilicon.com>,
	David Woodhouse <dwmw2@...radead.org>
Subject: Re: [PATCH] mtd: nand: remove NAND_MAX_OOBSIZE and NAND_MAX_PAGESIZE

On Fri, Dec 27, 2013 at 01:03:32PM +0000, Caizhiyong wrote:
> From: Cai Zhiyong <caizhiyong@...wei.com>
> Date: Fri, 27 Dec 2013 20:23:09 +0800
> Subject: [PATCH] mtd: nand: remove NAND_MAX_OOBSIZE and NAND_MAX_PAGESIZE
> 
> remove NAND_MAX_OOBSIZE and NAND_MAX_PAGESIZE, dynamic allocate
> NAND buffer after detecting NAND writesize and oobsize.
> 
>  - save memory. when use MACRO allocate static buffer, use a small
>    page size NAND chip, the buffer is still 8k, the memory is wasted.
> 
>  - reduce maintenance. NAND chip pagesize and oobsize update frequently,
>    allocate buffer according to the detecting size will reduce maintenance.
> 
>  - this fix was suggested by Brian Norris [computersforpeace@...il.com]
>                          and Huang Shijie [b32955@...escale.com]

I have already sent out a patch set to remove these macros several days ago. :(


thanks
Huang Shijie
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