From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1920C001B0 for ; Wed, 9 Aug 2023 11:00:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232010AbjHILAG (ORCPT ); Wed, 9 Aug 2023 07:00:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34320 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232855AbjHILAE (ORCPT ); Wed, 9 Aug 2023 07:00:04 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 684F81724 for ; Wed, 9 Aug 2023 04:00:04 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 0847A63118 for ; Wed, 9 Aug 2023 11:00:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 173F9C433C8; Wed, 9 Aug 2023 11:00:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1691578803; bh=XlbgVCpjLjBcuC5CO9oQMBvE6AsXTStywk+HeY1I650=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CGeFcrsXVPI7NUtpJNvo2XLJ3n2yMX/m5eqwjdoSUHsb7qD4QEclRfhblbUGzwAVS 0F/iMmYnfH2vScHBD9ZgDGJaVimOXFeYbT96r87z7zolq5IXIrpd222pbATpV5LXtE ciC5kZOKaxgJKp6j/hq4fbVhW6hTW7NnncmQ6sN8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Stable@vger.kernel.org, Arseniy Krasnov , Miquel Raynal Subject: [PATCH 5.15 63/92] mtd: rawnand: meson: fix OOB available bytes for ECC Date: Wed, 9 Aug 2023 12:41:39 +0200 Message-ID: <20230809103635.772775097@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230809103633.485906560@linuxfoundation.org> References: <20230809103633.485906560@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Arseniy Krasnov commit 7e6b04f9238eab0f684fafd158c1f32ea65b9eaa upstream. It is incorrect to calculate number of OOB bytes for ECC engine using some "already known" ECC step size (1024 bytes here). Number of such bytes for ECC engine must be whole OOB except 2 bytes for bad block marker, while proper ECC step size and strength will be selected by ECC logic. Fixes: 8fae856c5350 ("mtd: rawnand: meson: add support for Amlogic NAND flash controller") Cc: Signed-off-by: Arseniy Krasnov Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20230705065211.293500-1-AVKrasnov@sberdevices.ru Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/nand/raw/meson_nand.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/drivers/mtd/nand/raw/meson_nand.c +++ b/drivers/mtd/nand/raw/meson_nand.c @@ -1180,7 +1180,6 @@ static int meson_nand_attach_chip(struct struct meson_nfc *nfc = nand_get_controller_data(nand); struct meson_nfc_nand_chip *meson_chip = to_meson_nand(nand); struct mtd_info *mtd = nand_to_mtd(nand); - int nsectors = mtd->writesize / 1024; int ret; if (!mtd->name) { @@ -1198,7 +1197,7 @@ static int meson_nand_attach_chip(struct nand->options |= NAND_NO_SUBPAGE_WRITE; ret = nand_ecc_choose_conf(nand, nfc->data->ecc_caps, - mtd->oobsize - 2 * nsectors); + mtd->oobsize - 2); if (ret) { dev_err(nfc->dev, "failed to ECC init\n"); return -EINVAL;