[PATCH] MTD: Correct typo "MTD_DATAFLASH_VERIFY_WRITE".
Artem Bityutskiy
dedekind1 at gmail.com
Tue Jul 21 03:43:37 EDT 2009
Seems correct to me, I'll put it to l2-mtd-2.6.git, thanks.
CCint David who seem to introduced this in the following commit:
commit 8c64038e4c077b2b37c6b27d0c40c77a3ddfaeef
Author: David Brownell <dbrownell at users.sourceforge.net>
Date: Wed Aug 6 21:55:14 2008 -0700
[MTD] make dataflash write-verify be optional
This adds a WRITE_VERIFY Kconfig option to the DataFlash driver,
closely mirroring the similar NAND and ONENAND options, giving
an option to disable some code that's currently always enabled.
Removing this step probably saves a millisecond or so per page
when writing data, which will add up quickly since these pages
are small (the largest is 1 KiB). It doesn't seem to add a
lot in terms of reliability, and wouldn't detect errors which
crop up when transferring data to the on-chip SRAM buffer.
Signed-off-by: David Brownell <dbrownell at users.sourceforge.net>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen at atmel.com>
Acked-by: Andrew Victor <linux at maxim.org.za>
Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
On 07/20/2009 04:19 AM, Robert P. J. Day wrote:
> Fix the misspelling to match the actual config variable defined in
> drivers/mtd/devi ces/Kconfig:
>
> config MTD_DATAFLASH_WRITE_VERIFY
> bool "Verify DataFlash page writes"
> depends on MTD_DATAFLASH
>
> Signed-off-by: Robert P. J. Day<rpjday at crashcourse.ca>
>
> ---
>
> you know, there's a *reason* i keep reporting these anomalies...
>
> diff --git a/drivers/char/vr41xx_giu.c b/drivers/char/vr41xx_giu.c
> deleted file mode 100644
> index e69de29..0000000
> diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
> index 43976aa..70a7369 100644
> --- a/drivers/mtd/devices/mtd_dataflash.c
> +++ b/drivers/mtd/devices/mtd_dataflash.c
> @@ -401,7 +401,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
> (void) dataflash_waitready(priv->spi);
>
>
> -#ifdef CONFIG_MTD_DATAFLASH_VERIFY_WRITE
> +#ifdef CONFIG_MTD_DATAFLASH_WRITE_VERIFY
>
> /* (3) Compare to Buffer1 */
> addr = pageaddr<< priv->page_offset;
> @@ -430,7 +430,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
> } else
> status = 0;
>
> -#endif /* CONFIG_MTD_DATAFLASH_VERIFY_WRITE */
> +#endif /* CONFIG_MTD_DATAFLASH_WRITE_VERIFY */
>
> remaining = remaining - writelen;
> pageaddr++;
>
> ========================================================================
> Robert P. J. Day Waterloo, Ontario, CANADA
>
> Linux Consulting, Training and Annoying Kernel Pedantry.
>
> Web page: http://crashcourse.ca
> Twitter: http://twitter.com/rpjday
> "Kernel Newbie Corner" column @ linux.com: http://cli.gs/WG6WYX
> ========================================================================
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Best Regards,
Artem Bityutskiy (Артём Битюцкий)
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