From patchwork Fri May 13 11:57:29 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 621963 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3r5pQ172rSz9t7G for ; Fri, 13 May 2016 22:02:33 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932154AbcEMMBx (ORCPT ); Fri, 13 May 2016 08:01:53 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:63462 "EHLO mx0a-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751857AbcEMMBt (ORCPT ); Fri, 13 May 2016 08:01:49 -0400 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id u4DBuWtV002215; Fri, 13 May 2016 05:01:25 -0700 Received: from sc-exch02.marvell.com ([199.233.58.182]) by mx0a-0016f401.pphosted.com with ESMTP id 22ve9hpqv9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Fri, 13 May 2016 05:01:25 -0700 Received: from SC-EXCH04.marvell.com (10.93.176.84) by SC-EXCH02.marvell.com (10.93.176.82) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Fri, 13 May 2016 05:01:24 -0700 Received: from maili.marvell.com (10.93.176.43) by SC-EXCH04.marvell.com (10.93.176.84) with Microsoft SMTP Server id 15.0.1104.5 via Frontend Transport; Fri, 13 May 2016 05:01:24 -0700 Received: from xhacker.marvell.com (unknown [10.37.131.11]) by maili.marvell.com (Postfix) with ESMTP id 60E603F7040; Fri, 13 May 2016 05:01:23 -0700 (PDT) From: Jisheng Zhang To: CC: , , , Jisheng Zhang Subject: [PATCH 1/2] net: pxa168_eth: use {readl|writel}_relaxed instead of readl/writel Date: Fri, 13 May 2016 19:57:29 +0800 Message-ID: <1463140650-7038-2-git-send-email-jszhang@marvell.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1463140650-7038-1-git-send-email-jszhang@marvell.com> References: <1463140650-7038-1-git-send-email-jszhang@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-05-13_05:, , signatures=0 X-Proofpoint-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1604210000 definitions=main-1605130163 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Since appropriate memory barriers are already there, use the relaxed version to improve performance a bit. Signed-off-by: Jisheng Zhang --- drivers/net/ethernet/marvell/pxa168_eth.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c index c442f6a..db774e3 100644 --- a/drivers/net/ethernet/marvell/pxa168_eth.c +++ b/drivers/net/ethernet/marvell/pxa168_eth.c @@ -286,12 +286,12 @@ static int pxa168_eth_stop(struct net_device *dev); static inline u32 rdl(struct pxa168_eth_private *pep, int offset) { - return readl(pep->base + offset); + return readl_relaxed(pep->base + offset); } static inline void wrl(struct pxa168_eth_private *pep, int offset, u32 data) { - writel(data, pep->base + offset); + writel_relaxed(data, pep->base + offset); } static void abort_dma(struct pxa168_eth_private *pep)