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From:   Miquel Raynal <miquel.raynal@bootlin.com>
To:     William Zhang <william.zhang@broadcom.com>,
        Broadcom Kernel List <bcm-kernel-feedback-list@broadcom.com>,
        Linux MTD List <linux-mtd@lists.infradead.org>
Cc:     Miquel Raynal <miquel.raynal@bootlin.com>, f.fainelli@gmail.com,
        rafal@milecki.pl, kursad.oney@broadcom.com,
        joel.peshkin@broadcom.com, computersforpeace@gmail.com,
        anand.gore@broadcom.com, dregan@mail.com, kamal.dasu@broadcom.com,
        tomer.yacoby@broadcom.com, dan.beygelman@broadcom.com,
        Frieder Schrempf <frieder.schrempf@kontron.de>,
        linux-kernel@vger.kernel.org,
        Vignesh Raghavendra <vigneshr@ti.com>,
        Richard Weinberger <richard@nod.at>,
        Boris Brezillon <bbrezillon@kernel.org>,
        Kamal Dasu <kdasu.kdev@gmail.com>
Subject: Re: [PATCH v4 5/5] mtd: rawnand: brcmnand: Fix mtd oobsize
Date:   Thu, 13 Jul 2023 09:58:30 +0200
Message-Id: <20230713075830.486450-1-miquel.raynal@bootlin.com>
In-Reply-To: <20230706182909.79151-6-william.zhang@broadcom.com>
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On Thu, 2023-07-06 at 18:29:09 UTC, William Zhang wrote:
> brcmnand controller can only access the flash spare area up to certain
> bytes based on the ECC level. It can be less than the actual flash spare
> area size. For example, for many NAND chip supporting ECC BCH-8, it has
> 226 bytes spare area. But controller can only uses 218 bytes. So brcmand
> driver overrides the mtd oobsize with the controller's accessible spare
> area size. When the nand base driver utilizes the nand_device object, it
> resets the oobsize back to the actual flash spare aprea size from
> nand_memory_organization structure and controller may not able to access
> all the oob area as mtd advises.
> 
> This change fixes the issue by overriding the oobsize in the
> nand_memory_organization structure to the controller's accessible spare
> area size.
> 
> Fixes: a7ab085d7c16 ("mtd: rawnand: Initialize the nand_device object")
> Signed-off-by: William Zhang <william.zhang@broadcom.com>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.

Miquel