From: Boris Brezillon <boris.brezillon@free-electrons.com>
To: "Rafał Miłecki" <zajec5@gmail.com>
Cc: linux-mtd@lists.infradead.org,
Richard Weinberger <richard@nod.at>,
David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
linux-kernel@vger.kernel.org (open list)
Subject: Re: [PATCH V2 09/11] mtd: nand: read ECC algorithm from the new field
Date: Sun, 17 Apr 2016 20:59:38 +0200 [thread overview]
Message-ID: <20160417205938.71fcabf3@bbrezillon> (raw)
In-Reply-To: <1460913104-27388-10-git-send-email-zajec5@gmail.com>
On Sun, 17 Apr 2016 19:11:42 +0200
Rafał Miłecki <zajec5@gmail.com> wrote:
> Now we have all drivers properly setting this new field we can start
> using it. For a very short period of time we should support both values:
> NAND_ECC_SOFT and NAND_ECC_SOFT_BCH treating them the same. It's because
> of_get_nand_ecc_mode may still be setting NAND_ECC_SOFT_BCH.
>
> Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
> ---
> V2: Move SOFT-related code to separated functions
> Add missing checks for SOFT before checking Hamming vs. BCH
> ---
> drivers/mtd/nand/nand_base.c | 116 ++++++++++++++++++++++++++-----------------
> 1 file changed, 71 insertions(+), 45 deletions(-)
>
> diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
[...]
>
> @@ -4154,7 +4217,9 @@ int nand_scan_tail(struct mtd_info *mtd)
> /*
> * If no default placement scheme is given, select an appropriate one.
> */
> - if (!mtd->ooblayout && (ecc->mode != NAND_ECC_SOFT_BCH)) {
> + if (!mtd->ooblayout &&
> + (ecc->mode == NAND_ECC_SOFT || ecc->mode == NAND_ECC_SOFT_BCH) &&
> + ecc->algo != NAND_ECC_BCH) {
Sorry, I got this wrong in my previous review. It should be
if (!mtd->ooblayout &&
((ecc->mode != NAND_ECC_SOFT &&
ecc->mode != NAND_ECC_SOFT_BCH) ||
ecc->algo != NAND_ECC_BCH) {
otherwise we're only addressing the software ECC case, and IIRC, some
drivers rely on these default layouts for their HW ECC implementation.
The rest looks good to me.
Thanks,
Boris
--
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
next prev parent reply other threads:[~2016-04-17 18:59 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1460750052-16285-1-git-send-email-zajec5@gmail.com>
2016-04-15 19:54 ` [PATCH 01/12] mtd: nand: bf5xx: set ECC algorithm explicitly Rafał Miłecki
2016-04-15 19:54 ` [PATCH 02/12] mtd: nand: davinci: " Rafał Miłecki
2016-04-15 19:54 ` [PATCH 03/12] avr32: set Atmel NAND " Rafał Miłecki
2016-04-16 7:38 ` Boris Brezillon
2016-04-16 12:58 ` Hans-Christian Noren Egtvedt
2016-04-15 19:54 ` [PATCH 04/12] mtd: nand: atmel: set " Rafał Miłecki
2016-04-16 7:40 ` Boris Brezillon
2016-04-15 19:54 ` [PATCH 05/12] CRIS v32: nand: " Rafał Miłecki
2016-04-15 19:54 ` [PATCH 06/12] staging: mt29f_spinand: " Rafał Miłecki
2016-04-15 19:54 ` [PATCH 07/12] mtd: nand: set ECC algorithm to Hamming on fallback Rafał Miłecki
2016-04-15 19:54 ` [PATCH 08/12] mtd: nand: hisi504: set ECC algorithm based on DT info Rafał Miłecki
2016-04-16 7:48 ` Boris Brezillon
2016-04-15 19:54 ` [PATCH 09/12] mtd: nand: fsmc: validate ECC setup by checking algorithm directly Rafał Miłecki
2016-04-15 20:23 ` Joe Perches
2016-04-15 20:24 ` Joe Perches
2016-04-15 20:43 ` Rafał Miłecki
2016-04-15 19:54 ` [PATCH 10/12] mtd: nand: read ECC algorithm from the new field Rafał Miłecki
2016-04-16 7:58 ` Boris Brezillon
2016-04-16 8:11 ` Boris Brezillon
2016-04-17 16:27 ` Rafał Miłecki
2016-04-17 16:50 ` Boris Brezillon
2016-04-17 16:57 ` Boris Brezillon
2016-04-17 16:57 ` Rafał Miłecki
2016-04-15 19:54 ` [PATCH 11/12] of: mtd: drop support for NAND_ECC_SOFT_BCH as "soft_bch" mapping Rafał Miłecki
2016-04-16 8:00 ` Boris Brezillon
2016-04-16 8:01 ` Boris Brezillon
2016-04-15 19:54 ` [PATCH 12/12] mtd: mtd: drop NAND_ECC_SOFT_BCH enum value Rafał Miłecki
2016-04-17 17:05 ` Boris Brezillon
2016-04-17 17:10 ` Rafał Miłecki
2016-04-17 19:01 ` Boris Brezillon
[not found] ` <1460913104-27388-1-git-send-email-zajec5@gmail.com>
2016-04-17 17:11 ` [PATCH V2 01/11] mtd: nand: bf5xx: set ECC algorithm explicitly Rafał Miłecki
2016-04-17 17:11 ` [PATCH V2 02/11] mtd: nand: davinci: " Rafał Miłecki
2016-04-17 17:11 ` [PATCH V2 03/11] mtd: nand: atmel: " Rafał Miłecki
2016-04-17 17:11 ` [PATCH V2 04/11] CRIS v32: nand: " Rafał Miłecki
2016-04-17 17:11 ` [PATCH V2 05/11] staging: mt29f_spinand: " Rafał Miłecki
2016-04-17 17:11 ` [PATCH V2 06/11] mtd: nand: set ECC algorithm to Hamming on fallback Rafał Miłecki
2016-04-17 17:11 ` [PATCH V2 07/11] mtd: nand: hisi504: set ECC algorithm based on DT info Rafał Miłecki
2016-04-17 17:11 ` [PATCH V2 08/11] mtd: nand: fsmc: validate ECC setup by checking algorithm directly Rafał Miłecki
2016-04-17 17:11 ` [PATCH V2 09/11] mtd: nand: read ECC algorithm from the new field Rafał Miłecki
2016-04-17 18:59 ` Boris Brezillon [this message]
2016-04-17 17:11 ` [PATCH V2 10/11] of: mtd: drop support for NAND_ECC_SOFT_BCH as "soft_bch" mapping Rafał Miłecki
2016-04-17 17:11 ` [PATCH V2 11/11] mtd: mtd: drop NAND_ECC_SOFT_BCH enum value Rafał Miłecki
[not found] ` <1460926387-9563-1-git-send-email-zajec5@gmail.com>
2016-04-17 20:52 ` [PATCH V3 01/11] mtd: nand: bf5xx: set ECC algorithm explicitly Rafał Miłecki
2016-04-17 20:52 ` [PATCH V3 02/11] mtd: nand: davinci: " Rafał Miłecki
2016-04-17 20:52 ` [PATCH V3 03/11] mtd: nand: atmel: " Rafał Miłecki
2016-04-17 20:53 ` [PATCH V3 04/11] CRIS v32: nand: " Rafał Miłecki
2016-04-21 20:18 ` Boris Brezillon
2016-04-21 20:44 ` Mikael Starvik
2016-04-22 7:26 ` Jesper Nilsson
2016-04-17 20:53 ` [PATCH V3 05/11] staging: mt29f_spinand: " Rafał Miłecki
2016-04-21 20:20 ` Boris Brezillon
2016-04-22 2:32 ` Greg Kroah-Hartman
2016-04-17 20:53 ` [PATCH V3 06/11] mtd: nand: set ECC algorithm to Hamming on fallback Rafał Miłecki
2016-04-17 20:53 ` [PATCH V3 07/11] mtd: nand: hisi504: set ECC algorithm based on DT info Rafał Miłecki
2016-04-17 20:53 ` [PATCH V3 08/11] mtd: nand: fsmc: validate ECC setup by checking algorithm directly Rafał Miłecki
2016-04-17 20:53 ` [PATCH V3 09/11] mtd: nand: read ECC algorithm from the new field Rafał Miłecki
2016-04-17 20:53 ` [PATCH V3 10/11] of: mtd: drop support for NAND_ECC_SOFT_BCH as "soft_bch" mapping Rafał Miłecki
2016-04-17 20:53 ` [PATCH V3 11/11] mtd: mtd: drop NAND_ECC_SOFT_BCH enum value Rafał Miłecki
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