From mboxrd@z Thu Jan 1 00:00:00 1970 From: RogerCC.Lin Subject: [PATCH v2 0/2] mtd: nand: fix writing incorrect ECC parity data in OOB region. Date: Mon, 29 Aug 2016 19:40:03 +0800 Message-ID: <1472470803.11041.4.camel@mtkswgap22> References: <1472443093.27061.4.camel@mtkswgap22> <20160829101006.2b200e0a@bbrezillon> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20160829101006.2b200e0a@bbrezillon> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+glpam-linux-mediatek=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org To: Boris Brezillon Cc: robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, daniel.thompson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, steven.liu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Jorge Ramirez-Ortiz , matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, xiaolei.li-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, computersforpeace-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, blogic-p3rKhJxN3npAfugRpC6u6w@public.gmane.org List-Id: linux-mediatek@lists.infradead.org This series fix chances to write incorrect ECC data which may cause uncorrectable ECC error when reading. changes since v1: - separate patches into 2. - use shift operator with byte access to avoid endianness conversion problems. - follow linux coding style. The patch passed the test of UBIFS file-system read/write on Mediatek's RFB. The tested driver is checked-out from LEDE OpenWRT project's upstream driver, which is pretty much same as nand/next branch upstream driver(git clone https://git.lede-project.org/source.git). RogerCC Lin (2): mtd: nand: fix generating over-boundary ECC data when writing. mtd: nand: fix chances to create incomplete ECC data when writing. drivers/mtd/nand/mtk_ecc.c | 12 ++++++++---- drivers/mtd/nand/mtk_nand.c | 8 ++++---- 2 files changed, 12 insertions(+), 8 deletions(-)