From: Sascha Hauer <s.hauer@pengutronix.de>
To: Daniel Schultz <d.schultz@phytec.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 3/3] drivers: mtd: nand: omap: Return stat value
Date: Tue, 30 Jan 2018 08:11:58 +0100 [thread overview]
Message-ID: <20180130071158.urvefxgjl3lvmfwd@pengutronix.de> (raw)
In-Reply-To: <1517231051-12129-3-git-send-email-d.schultz@phytec.de>
On Mon, Jan 29, 2018 at 02:04:11PM +0100, Daniel Schultz wrote:
> The read page function should return the total count of flipped bits,
> otherwise the caller always thinks no bitflip occured.
>
> Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
> ---
> drivers/mtd/nand/nand_omap_gpmc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/nand/nand_omap_gpmc.c b/drivers/mtd/nand/nand_omap_gpmc.c
> index e18ce63..38f4960 100644
> --- a/drivers/mtd/nand/nand_omap_gpmc.c
> +++ b/drivers/mtd/nand/nand_omap_gpmc.c
> @@ -712,7 +712,7 @@ static int omap_gpmc_read_page_bch_rom_mode(struct mtd_info *mtd,
> else
> mtd->ecc_stats.corrected += stat;
>
> - return 0;
> + return stat;
> }
I'm afraid this is not enough. read_page should return the maximum
number of bitflips in any ECC step. You first have to change
omap_correct_bch() so that it returns this number.
Sascha
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next prev parent reply other threads:[~2018-01-30 7:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-29 13:04 [PATCH 1/3] commands: ubi: ubiupdatevol: Reduce error code to 0 or 1 Daniel Schultz
2018-01-29 13:04 ` [PATCH 2/3] ARM: configs: am335x_defconfig: Reorder configs Daniel Schultz
2018-01-29 13:04 ` [PATCH 3/3] drivers: mtd: nand: omap: Return stat value Daniel Schultz
2018-01-30 7:11 ` Sascha Hauer [this message]
2018-02-15 12:51 ` Daniel Schultz
2018-02-16 7:56 ` Sascha Hauer
2018-02-23 15:53 ` Daniel Schultz
2018-01-30 7:05 ` [PATCH 1/3] commands: ubi: ubiupdatevol: Reduce error code to 0 or 1 Sascha Hauer
2018-01-30 7:13 ` Sascha Hauer
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