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[2620:137:e000::1:20]) by mx.google.com with ESMTP id j4-20020a170902758400b00186dcc37df6si14721996pll.616.2022.12.29.10.16.39; Thu, 29 Dec 2022 10:16:51 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@sholland.org header.s=fm3 header.b=NjMFxRZ+; dkim=pass header.i=@messagingengine.com header.s=fm2 header.b=HsRR2B5a; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=sholland.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233685AbiL2SPx (ORCPT + 99 others); Thu, 29 Dec 2022 13:15:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233880AbiL2SPl (ORCPT ); Thu, 29 Dec 2022 13:15:41 -0500 Received: from wout2-smtp.messagingengine.com (wout2-smtp.messagingengine.com [64.147.123.25]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 10D8615F00 for ; Thu, 29 Dec 2022 10:15:40 -0800 (PST) Received: from compute2.internal (compute2.nyi.internal [10.202.2.46]) by mailout.west.internal (Postfix) with ESMTP id B11983200900; Thu, 29 Dec 2022 13:15:39 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute2.internal (MEProxy); Thu, 29 Dec 2022 13:15:40 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sholland.org; h= cc:cc:content-transfer-encoding:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:sender :subject:subject:to:to; s=fm3; t=1672337739; x=1672424139; bh=+y owLKRJXG5KC8guU+L3zS9PmXyXPUwHqs5jAcrH1n8=; b=NjMFxRZ+QZD9UGucgT 3k9PuEN2/mDP+IB9eAtBS4ykWeu3aXi6YvfZnOxMtUnM1k7dgBKbNZizRiniCreK mPgqELgFWGEJClE7k5a87NVie2KGW6aAQx40LpRKUqa+kzRcsIBF23tlE774DSi4 cZMcDQqCclZaElXyCMWYL3wVALtaHcsN/YDTCd959c934SQbP4LFWvtyc6oy09Oo v89h0GCKI0H7jlEALyIbgE2JSjFVr0yL7ys6pPfMh9tw81UI3OI9rDhzRttOsqgd sGw4Wre5b8ZronJeofJjKupxEyPgIfYzOiJ7UDD7d+YtSguUM7XH1PGI9S5WF3KP JDnQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm2; t=1672337739; x=1672424139; bh=+yowLKRJXG5KC 8guU+L3zS9PmXyXPUwHqs5jAcrH1n8=; b=HsRR2B5aqf2cMTQNa8s3obOULDCwU bI7/qnGSV02TRSrCAgVe0N4/6UQ8h4pFful0gd4Wqyeg9+p+huQOvV9XziiHe112 F4xzeVVR2DMMxF6PARc5xNGmRwBpt2y5I1e4ZZPalrc1AtF4ntbp8tZYIx4v2a/e rF7HBzuUW907QMkL+f3PHYX8EYs8HSMl7NZBm89ofI33eD4e7d2Ixi17/i6CwCNQ 3csDvmhGvWlNn+dd0gY1HbSdeZHL7PHak6q8tfoJZvbzrVqRRqA+dX02KXwYR/V+ MDF/WNpCxdZ7JfOTgruRnXw7smsOMFdaIL70xsFVsBEPqqpKVRkixbinQ== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrieeggdduudduucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvvefufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufgrmhhu vghlucfjohhllhgrnhguuceoshgrmhhuvghlsehshhholhhlrghnugdrohhrgheqnecugg ftrfgrthhtvghrnhepudekteeuudehtdelteevgfduvddvjefhfedulefgudevgeeghefg udefiedtveetnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrh homhepshgrmhhuvghlsehshhholhhlrghnugdrohhrgh X-ME-Proxy: Feedback-ID: i0ad843c9:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Thu, 29 Dec 2022 13:15:38 -0500 (EST) From: Samuel Holland To: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Chen-Yu Tsai , Jernej Skrabec Cc: Boris Brezillon , Samuel Holland , Brian Norris , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, linux-sunxi@lists.linux.dev Subject: [PATCH 4/7] mtd: rawnand: sunxi: Fix ECC strength maximization Date: Thu, 29 Dec 2022 12:15:23 -0600 Message-Id: <20221229181526.53766-5-samuel@sholland.org> X-Mailer: git-send-email 2.37.4 In-Reply-To: <20221229181526.53766-1-samuel@sholland.org> References: <20221229181526.53766-1-samuel@sholland.org> MIME-Version: 1.0 X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1753573293091182980?= X-GMAIL-MSGID: =?utf-8?q?1753573293091182980?= This is already accounted for in the subtraction for OOB, since the BBM overlaps the first OOB dword. With this change, the driver picks the same ECC strength as the vendor driver. Fixes: 4796d8655915 ("mtd: nand: sunxi: Support ECC maximization") Signed-off-by: Samuel Holland --- drivers/mtd/nand/raw/sunxi_nand.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/mtd/nand/raw/sunxi_nand.c b/drivers/mtd/nand/raw/sunxi_nand.c index 1bddeb1be66f..1ecf2cee343b 100644 --- a/drivers/mtd/nand/raw/sunxi_nand.c +++ b/drivers/mtd/nand/raw/sunxi_nand.c @@ -1643,8 +1643,7 @@ static int sunxi_nand_hw_ecc_ctrl_init(struct nand_chip *nand, ecc->size = 1024; nsectors = mtd->writesize / ecc->size; - /* Reserve 2 bytes for the BBM */ - bytes = (mtd->oobsize - 2) / nsectors; + bytes = mtd->oobsize / nsectors; /* 4 non-ECC bytes are added before each ECC bytes section */ bytes -= 4;