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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A736C433EF for ; Thu, 7 Jul 2022 15:11:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236048AbiGGPLN (ORCPT ); Thu, 7 Jul 2022 11:11:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39310 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236019AbiGGPLL (ORCPT ); Thu, 7 Jul 2022 11:11:11 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A33B726AFC for ; Thu, 7 Jul 2022 08:11:10 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 4C980B82246 for ; Thu, 7 Jul 2022 15:11:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 97AEDC3411E; Thu, 7 Jul 2022 15:11:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1657206668; bh=2cd2PoNnTUIzUKhT1aXoamyiqoPXx51eV3bPQk5PvMg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=AFhB9nXIZYJCjVs0R5f7XxQvV80J8Dc7FcO/Nv9xuUQnktawIxEAiwTgqszHaaZmS McUplIESKOvHgZBjl0GGyG9/vOcXnJD/Y/vXm0zbo1nYssPlKd+BkvGARKv2rcqzAl XRfd20z798/W9wtSNZFEy0GS6Phj3O93BywHYxaU= Date: Thu, 7 Jul 2022 17:11:00 +0200 From: Greg Kroah-Hartman To: Marek =?iso-8859-1?Q?Beh=FAn?= Cc: linux-serial@vger.kernel.org, Pali =?iso-8859-1?Q?Roh=E1r?= Subject: Re: [PATCH 5/7] USB: serial: ftdi_sio: Fix baudrate rounding for ASYNC_SPD_CUST Message-ID: References: <20220707145354.29705-1-kabel@kernel.org> <20220707145354.29705-6-kabel@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20220707145354.29705-6-kabel@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org On Thu, Jul 07, 2022 at 04:53:52PM +0200, Marek Behún wrote: > From: Pali Rohár > > Use DIV_ROUND_CLOSEST() for more accurate baudrate calculation for > ASYNC_SPD_CUST instead of rounding it just down. Why? What does this change or fix? thanks, greg k-h