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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 C5EDFC3815B for ; Wed, 15 Apr 2020 16:45:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9612B20737 for ; Wed, 15 Apr 2020 16:45:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=rere.qmqm.pl header.i=@rere.qmqm.pl header.b="LkXq7rUH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2410411AbgDOQpf (ORCPT ); Wed, 15 Apr 2020 12:45:35 -0400 Received: from rere.qmqm.pl ([91.227.64.183]:15261 "EHLO rere.qmqm.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404537AbgDOQpc (ORCPT ); Wed, 15 Apr 2020 12:45:32 -0400 Received: from remote.user (localhost [127.0.0.1]) by rere.qmqm.pl (Postfix) with ESMTPSA id 492Ss61qB1zCQ; Wed, 15 Apr 2020 18:45:29 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=rere.qmqm.pl; s=1; t=1586969130; bh=kAIJPE2ZZL/Q6yulReDpgbbwC0zEf9C+u6NXWrMTpRc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=LkXq7rUHGtnXk/ohqLXvs9ytSE/gzc73Boks+663ZixJN1dMGTSWWli0CiDzpkIKC X5CpCCp+xIv5b2JMM5WbyW6xmnTIOiEJlM7mx5yPE0UxlDT84AI/SiAWGjPk46HQXD rSl3QyaOnzD/YQG04ZoI4k8ap0ITw4LhM2OaxYrPWz387tgGcy0XTbYr+jBMgQDzrl csq+a2LG9WNH9gtIuOMU6YW9LTUDFksuXEDRweTzgAEUEjWZk2OrWVwExdfIDFiPVk PTWeULgOUbLGw6S5h5WjRLthT1aC0RovdQzMegHmSZIU0RPynZkPfGfFwLhJ9kKqBZ K9HAMBtPCxxnQ== X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.102.2 at mail Date: Wed, 15 Apr 2020 18:45:28 +0200 From: =?iso-8859-2?Q?Micha=B3_Miros=B3aw?= To: Adrian Hunter Cc: Kevin Liu , Michal Simek , Suneel Garapati , Ulf Hansson , linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org Subject: Re: [PATCH 5/7] mmc: sdhci: simplify clock frequency calculation Message-ID: <20200415164528.GE19897@qmqm.qmqm.pl> References: <1a7f7f0941314da66acda3c60f44b3d2417133e6.1585827904.git.mirq-linux@rere.qmqm.pl> <7967c035-52e3-1ce7-a82f-47d28a3cf484@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <7967c035-52e3-1ce7-a82f-47d28a3cf484@intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 15, 2020 at 04:54:33PM +0300, Adrian Hunter wrote: > On 2/04/20 2:54 pm, Michał Mirosław wrote: > > Make clock frequency calculations simpler by replacing loops > > with divide-and-clamp. > > I am sorry, but I am not really sure the simplification is worth the code > churn, risk of introducing new bugs, or validation effort. > > IMO, the loops, while perhaps inefficient, are not hard to understand. I guess this is a kind of religious subject. ;-) I tend to prefer shorter and less-branchy code. Best Regards, Michał Mirosław