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 X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D6968C432BE for ; Mon, 30 Aug 2021 13:02:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AD13B60F4B for ; Mon, 30 Aug 2021 13:02:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236729AbhH3NDQ (ORCPT ); Mon, 30 Aug 2021 09:03:16 -0400 Received: from mail.fris.de ([116.203.77.234]:60030 "EHLO mail.fris.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231480AbhH3NDM (ORCPT ); Mon, 30 Aug 2021 09:03:12 -0400 X-Greylist: delayed 20336 seconds by postgrey-1.27 at vger.kernel.org; Mon, 30 Aug 2021 09:03:12 EDT Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 6AAF1BFAE8; Mon, 30 Aug 2021 15:02:15 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fris.de; s=dkim; t=1630328536; h=from:subject:date:message-id:to:cc:mime-version: content-transfer-encoding; bh=J8EqyEThj2vYt1gLlGWAPjy92OKvfcflpYFCLx+6AN0=; b=0X5h4VsLaT3N7aHJkLXg5ZWUaii9HEHqc2H6UtAQqPuU/nWkmjqDalkyMY/kG3sjLyGIjz +Lv9BFISoFwHKJ3FYY5fsJmDjsg0Vnm8ddkYxnbUHLMIjlPj9nCnNFmsBdOY+dVHpAGYnc dxx+1ZWQD1Eq/JGXw6Brhm9F2chkjMdHfRFObkRfowKpDp6L6jmX5cOWT5Yu317iFtj8BX PmoRVoPWtoQdwwLjujQ0uHMGX/K1BqjUtMnVS06NGiydYbyDCEGCP2CnXsJysnKgAOI82j JCLzKNhC/QI9AJLkvaCV/84KV+KqrBPg/avn2yJgyfSwqmCA59lEctL0YZIOXA== From: Frieder Schrempf To: Miquel Raynal Cc: Frieder Schrempf , stable@vger.kernel.org, voice INTER connect GmbH , Alexander Lobakin , Felix Fietkau , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, Richard Weinberger , YouChing Lin Subject: [PATCH v2 5.10.x] mtd: spinand: Fix incorrect parameters for on-die ECC Date: Mon, 30 Aug 2021 15:02:10 +0200 Message-Id: <20210830130211.445728-1-frieder@fris.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Last-TLS-Session-Version: TLSv1.3 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Frieder Schrempf The new generic NAND ECC framework stores the configuration and requirements in separate places since commit 93ef92f6f422 ("mtd: nand: Use the new generic ECC object"). In 5.10.x The SPI NAND layer still uses only the requirements to track the ECC properties. This mismatch leads to values of zero being used for ECC strength and step_size in the SPI NAND layer wherever nanddev_get_ecc_conf() is used and therefore breaks the SPI NAND on-die ECC support in 5.10.x. By using nanddev_get_ecc_requirements() instead of nanddev_get_ecc_conf() for SPI NAND, we make sure that the correct parameters for the detected chip are used. In later versions (5.11.x) this is fixed anyway with the implementation of the SPI NAND on-die ECC engine. Cc: stable@vger.kernel.org # 5.10.x Reported-by: voice INTER connect GmbH Signed-off-by: Frieder Schrempf Acked-by: Miquel Raynal --- Changes in v2: * Fix checkpatch error/warnings for commit message style * Add Miquel's A-b tag --- drivers/mtd/nand/spi/core.c | 6 +++--- drivers/mtd/nand/spi/macronix.c | 6 +++--- drivers/mtd/nand/spi/toshiba.c | 6 +++--- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c index 558d8a14810b..8794a1f6eacd 100644 --- a/drivers/mtd/nand/spi/core.c +++ b/drivers/mtd/nand/spi/core.c @@ -419,7 +419,7 @@ static int spinand_check_ecc_status(struct spinand_device *spinand, u8 status) * fixed, so let's return the maximum possible value so that * wear-leveling layers move the data immediately. */ - return nanddev_get_ecc_conf(nand)->strength; + return nanddev_get_ecc_requirements(nand)->strength; case STATUS_ECC_UNCOR_ERROR: return -EBADMSG; @@ -1090,8 +1090,8 @@ static int spinand_init(struct spinand_device *spinand) mtd->oobavail = ret; /* Propagate ECC information to mtd_info */ - mtd->ecc_strength = nanddev_get_ecc_conf(nand)->strength; - mtd->ecc_step_size = nanddev_get_ecc_conf(nand)->step_size; + mtd->ecc_strength = nanddev_get_ecc_requirements(nand)->strength; + mtd->ecc_step_size = nanddev_get_ecc_requirements(nand)->step_size; return 0; diff --git a/drivers/mtd/nand/spi/macronix.c b/drivers/mtd/nand/spi/macronix.c index 8e801e4c3a00..cd7a9cacc3fb 100644 --- a/drivers/mtd/nand/spi/macronix.c +++ b/drivers/mtd/nand/spi/macronix.c @@ -84,11 +84,11 @@ static int mx35lf1ge4ab_ecc_get_status(struct spinand_device *spinand, * data around if it's not necessary. */ if (mx35lf1ge4ab_get_eccsr(spinand, &eccsr)) - return nanddev_get_ecc_conf(nand)->strength; + return nanddev_get_ecc_requirements(nand)->strength; - if (WARN_ON(eccsr > nanddev_get_ecc_conf(nand)->strength || + if (WARN_ON(eccsr > nanddev_get_ecc_requirements(nand)->strength || !eccsr)) - return nanddev_get_ecc_conf(nand)->strength; + return nanddev_get_ecc_requirements(nand)->strength; return eccsr; diff --git a/drivers/mtd/nand/spi/toshiba.c b/drivers/mtd/nand/spi/toshiba.c index 21fde2875674..6fe7bd2a94d2 100644 --- a/drivers/mtd/nand/spi/toshiba.c +++ b/drivers/mtd/nand/spi/toshiba.c @@ -90,12 +90,12 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand, * data around if it's not necessary. */ if (spi_mem_exec_op(spinand->spimem, &op)) - return nanddev_get_ecc_conf(nand)->strength; + return nanddev_get_ecc_requirements(nand)->strength; mbf >>= 4; - if (WARN_ON(mbf > nanddev_get_ecc_conf(nand)->strength || !mbf)) - return nanddev_get_ecc_conf(nand)->strength; + if (WARN_ON(mbf > nanddev_get_ecc_requirements(nand)->strength || !mbf)) + return nanddev_get_ecc_requirements(nand)->strength; return mbf; -- 2.32.0