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=-1.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS 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 4E26AC10F14 for ; Thu, 11 Apr 2019 18:30:41 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1B72A2083E for ; Thu, 11 Apr 2019 18:30:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="dzqYqH7K" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1B72A2083E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=embeddedor.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:To:Subject:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=shQS3q/IxNtYu4Bn7WRuZrh+aLbBHew2Hs6GQ6yDCVs=; b=dzqYqH7KyQiLUf y9RwcabEu1P0teirQI5SmLKky0pQS8RKDO2zixBo8fk1PRf4KxkBd6JRN3Kmz6dY/ADETCulkeZVa 4p30in/yN8sT5n+cSJrMM1/KynwiVY2bGmeD96pIRfinHeFHaVHDQM1zMXFG7mhjudzWJ1ubzcGJU TCeyczvfGhUieeeKw61tyFSbJuLFK3jdCzxsaHp1qdcFfVCjaORFjaBEcrrmXwuSJ8pFhtsYUgTEg oFgHREPR83MZMd+64VDQfNhUeaC2K+xA1Czr/aG7ZYq7KL3bpERRHvf3TtRBNINt5kSEkdccwZiTy iOyoPxt6XRKpzNmXK6aA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hEeT8-00083A-Jd; Thu, 11 Apr 2019 18:30:38 +0000 Received: from gateway30.websitewelcome.com ([192.185.194.16]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hEeT5-00082b-PA for linux-arm-kernel@lists.infradead.org; Thu, 11 Apr 2019 18:30:37 +0000 Received: from cm16.websitewelcome.com (cm16.websitewelcome.com [100.42.49.19]) by gateway30.websitewelcome.com (Postfix) with ESMTP id 6023A14D03 for ; Thu, 11 Apr 2019 13:30:34 -0500 (CDT) Received: from gator4166.hostgator.com ([108.167.133.22]) by cmsmtp with SMTP id EeT4hvtax4FKpEeT4hQ9ZY; Thu, 11 Apr 2019 13:30:34 -0500 X-Authority-Reason: nr=8 Received: from [189.250.139.70] (port=55132 helo=[192.168.1.76]) by gator4166.hostgator.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.91) (envelope-from ) id 1hEeT3-0036b3-NS; Thu, 11 Apr 2019 13:30:33 -0500 Subject: Re: [PATCH v2] mtd: rawnand: mark expected switch fall-throughs To: Miquel Raynal References: <20190128181520.GA25887@embeddedor> <20190205135521.622f82c2@xps13> From: "Gustavo A. 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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20190205135521.622f82c2@xps13> Content-Language: en-US X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator4166.hostgator.com X-AntiAbuse: Original Domain - lists.infradead.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - embeddedor.com X-BWhitelist: no X-Source-IP: 189.250.139.70 X-Source-L: No X-Exim-ID: 1hEeT3-0036b3-NS X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: ([192.168.1.76]) [189.250.139.70]:55132 X-Source-Auth: gustavo@embeddedor.com X-Email-Count: 12 X-Source-Cap: Z3V6aWRpbmU7Z3V6aWRpbmU7Z2F0b3I0MTY2Lmhvc3RnYXRvci5jb20= X-Local-Domain: yes X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190411_113035_902733_22F9E32B X-CRM114-Status: GOOD ( 16.25 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kees Cook , Wan ZongShun , Boris Brezillon , Richard Weinberger , linux-kernel@vger.kernel.org, Marek Vasut , Kyungmin Park , linux-mtd@lists.infradead.org, Brian Norris , David Woodhouse , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Miquel, On 2/5/19 6:55 AM, Miquel Raynal wrote: [..] >> @@ -3280,12 +3280,14 @@ static void onenand_check_features(struct mtd_info *mtd) >> if ((this->version_id & 0xf) == 0xe) >> this->options |= ONENAND_HAS_NOP_1; >> } >> + /* fall through */ >> >> case ONENAND_DEVICE_DENSITY_2Gb: >> /* 2Gb DDP does not have 2 plane */ >> if (!ONENAND_IS_DDP(this)) >> this->options |= ONENAND_HAS_2PLANE; >> this->options |= ONENAND_HAS_UNLOCK_ALL; >> + /* fall through */ > > This looks strange. > > In ONENAND_DEVICE_DENSITY_2Gb: > ONENAND_HAS_UNLOCK_ALL is set unconditionally. > > But then, under ONENAND_DEVICE_DENSITY_1Gb, the same option is set only > if process is evaluated to true. > > Same problem with ONENAND_HAS_2PLANE: > - it is set in ONENAND_DEVICE_DENSITY_4Gb only if ONENAND_IS_DDP() > - it is unset in ONENAND_DEVICE_DENSITY_2Gb only if !ONENAND_IS_DDP() > > Maybe this portion should be reworked because I am unsure if this is a > missing fall through or a bug. > I wonder if you had the chance to take a look into this piece of code. Thanks -- Gustavo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel