From patchwork Thu May 8 19:57:25 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: dirk.brandewie@gmail.com X-Patchwork-Id: 4138501 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 12AAD9F1E1 for ; Thu, 8 May 2014 19:58:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3908D202DD for ; Thu, 8 May 2014 19:58:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 626B0201F9 for ; Thu, 8 May 2014 19:58:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932135AbaEHT5q (ORCPT ); Thu, 8 May 2014 15:57:46 -0400 Received: from mail-pd0-f175.google.com ([209.85.192.175]:63120 "EHLO mail-pd0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932128AbaEHT5o (ORCPT ); Thu, 8 May 2014 15:57:44 -0400 Received: by mail-pd0-f175.google.com with SMTP id x10so2693071pdj.6 for ; Thu, 08 May 2014 12:57:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=4A0tEPgbUEIQaK5ZHaCUbJbi3Q+b6HRzz/Pj9LpjKoU=; b=UkizmxAiwkS3iPHgQAwlZEmIOYIEtTAFC7yxWLZLn0wmuo2qVGTX9G8bObeAlzuDGP rkkOzQXncvrxoXMNrABiG48Xu+fInGTLqILX7T9aM8KST2iLUFsuu4/SOeZXAqZoKN5M SwYgeBZcBIDqmPjfxJ+K8W6svn07UEm5Asai3aSFH7f1/mQpXe6xBNdsYLq3GNhs/t6L cJU+RgrzGhWCFi1JishK9MsRjlDXbNP3qs3ACZzbSoVMhHfq9tmKzyjITf0PdiGvrfkV +5NpTem0vbZng1/atutDHj+uNDF25FGicQPeAudZsANcGgiMTvXp5UMcw5Es7lYgDd7Y sg8g== X-Received: by 10.66.226.145 with SMTP id rs17mr11427893pac.144.1399579064489; Thu, 08 May 2014 12:57:44 -0700 (PDT) Received: from echolake.localdomain (static-50-43-42-35.bvtn.or.frontiernet.net. [50.43.42.35]) by mx.google.com with ESMTPSA id yo9sm8436026pab.16.2014.05.08.12.57.42 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 08 May 2014 12:57:43 -0700 (PDT) X-Google-Original-From: dirk.j.brandewie@intel.com From: dirk.brandewie@gmail.com To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: rjw@rjwysocki.net, dirk.brandewie@gmail.com, Dirk Brandewie Subject: [PATCH 3/5] intel_pstate: Fix fixed point rounding macro Date: Thu, 8 May 2014 12:57:25 -0700 Message-Id: <1399579047-5792-4-git-send-email-dirk.j.brandewie@intel.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1399579047-5792-1-git-send-email-dirk.j.brandewie@intel.com> References: <1399579047-5792-1-git-send-email-dirk.j.brandewie@intel.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-7.4 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Dirk Brandewie Change the FP_ROUNDUP macro to add 0.5 in fixed point representation instead of 1.0 Signed-off-by: Dirk Brandewie --- drivers/cpufreq/intel_pstate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index eab8ccf..bb20881 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -43,7 +43,7 @@ #define FRAC_BITS 6 #define int_tofp(X) ((int64_t)(X) << FRAC_BITS) #define fp_toint(X) ((X) >> FRAC_BITS) -#define FP_ROUNDUP(X) ((X) += 1 << FRAC_BITS) +#define FP_ROUNDUP(X) ((X) += 1 << (FRAC_BITS-1)) static inline int32_t mul_fp(int32_t x, int32_t y) {