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=-10.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 7F0D5C433E0 for ; Sat, 20 Feb 2021 16:44:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 525C164ED7 for ; Sat, 20 Feb 2021 16:44:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229808AbhBTQnw (ORCPT ); Sat, 20 Feb 2021 11:43:52 -0500 Received: from vern.gendns.com ([98.142.107.122]:60918 "EHLO vern.gendns.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229804AbhBTQnw (ORCPT ); Sat, 20 Feb 2021 11:43:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lechnology.com; s=default; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To:Subject:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=o3fnr0AasHCE7sOwqG9i6QL4f96T64yKsXZXUPNym00=; b=iCNOfWxwVMacI+svobG9eYt1IX LB7VgPct+zMzjh2R8iWeOvTjVargOr/IpoVln1/HAj6XSOYIcalDvL8hq5+ewE1QaLXBwvp/l2Jzg GAC3oCPV0XDjBONGV3QBDpdzHk7VzNvejKRFNSeCs1xYPKEe7rWcYsuVMrffR5LIK7O/DDYRM8w4G Im3CAhBBPurg4McI20rjFeO4mC7Y8T4++kJ8vt07xZhKihDsdBUkx0hLZiOA8snA3fR3CgHo6Y1cb tRQRpF/yCa+wzLms/Hn2mH3+RY2/NzaR3HtxkLCmJerxk3F+Lm0Dmu835190r4Dr3oFmqc9snBawE c0G/JZFA==; Received: from 108-198-5-147.lightspeed.okcbok.sbcglobal.net ([108.198.5.147]:57598 helo=[192.168.0.134]) by vern.gendns.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.93) (envelope-from ) id 1lDVLY-0001ki-9S; Sat, 20 Feb 2021 11:43:08 -0500 Subject: Re: [PATCH v8 09/22] counter: Return error code on invalid modes To: William Breathitt Gray , jic23@kernel.org Cc: kernel@pengutronix.de, linux-stm32@st-md-mailman.stormreply.com, a.fatoum@pengutronix.de, kamel.bouhara@bootlin.com, gwendal@chromium.org, alexandre.belloni@bootlin.com, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, syednwaris@gmail.com, patrick.havelange@essensium.com, fabrice.gasnier@st.com, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com, o.rempel@pengutronix.de References: <58e7c59bb7c7bb94c8655903308842d9d9e9907a.1613131238.git.vilhelm.gray@gmail.com> From: David Lechner Message-ID: Date: Sat, 20 Feb 2021 10:43:06 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <58e7c59bb7c7bb94c8655903308842d9d9e9907a.1613131238.git.vilhelm.gray@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vern.gendns.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - lechnology.com X-Get-Message-Sender-Via: vern.gendns.com: authenticated_id: davidmain+lechnology.com/only user confirmed/virtual account not confirmed X-Authenticated-Sender: vern.gendns.com: davidmain@lechnology.com X-Source: X-Source-Args: X-Source-Dir: Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org On 2/12/21 6:13 AM, William Breathitt Gray wrote: > Only a select set of modes (function, action, etc.) are valid for a > given device configuration. This patch ensures that invalid modes result > in a return -EINVAL. Such a situation should never occur in reality, but > it's good to define a default switch cases for the sake of making the > intent of the code clear. > > Cc: Syed Nayyar Waris > Cc: Kamel Bouhara > Cc: Fabrice Gasnier > Cc: Maxime Coquelin > Cc: Alexandre Torgue > Cc: David Lechner > Signed-off-by: William Breathitt Gray > --- Reviewed-by: David Lechner (In response to Jonathan's comment, I think this is fine rather than adding more churn to change all of the breaks to returns - but will keep that in mind for future changes.)