linux-kernel - Re: [PATCH] mtd: kill MTD_NAND_VERIFY

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Date:	Wed, 15 Aug 2012 10:06:55 +0300
From:	Shmulik Ladkani <shmulik.ladkani@...il.com>
To:	Huang Shijie <shijie8@...il.com>
Cc:	dwmw2@...radead.org, dedekind1@...il.com,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mtd: kill MTD_NAND_VERIFY_WRITE

Hi Huang,

On Tue, 14 Aug 2012 22:38:45 -0400 Huang Shijie <shijie8@...il.com> wrote:
> diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
> index 588e989..0ca7257 100644
> --- a/drivers/mtd/nand/Kconfig
> +++ b/drivers/mtd/nand/Kconfig
> @@ -22,15 +22,6 @@ menuconfig MTD_NAND
>  
>  if MTD_NAND
>  
> -config MTD_NAND_VERIFY_WRITE
> -	bool "Verify NAND page writes"
> -	help
> -	  This adds an extra check when data is written to the flash. The
> -	  NAND flash device internally checks only bits transitioning
> -	  from 1 to 0. There is a rare possibility that even though the
> -	  device thinks the write was successful, a bit could have been
> -	  flipped accidentally due to device wear or something else.
> -

There are some defconfig files which set CONFIG_MTD_NAND_VERIFY_WRITE.

I guess you should submit an accompanying patch that removes
CONFIG_MTD_NAND_VERIFY_WRITE from all defconfig files.

(also, trimmed the CC list for this specific discussion, seems unrelated
to all of the parties)

Regards,
Shmulik
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