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: 9090901 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 1B0E0BF29F for ; Fri, 13 May 2016 12:03:14 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3B2242024C for ; Fri, 13 May 2016 12:03:13 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8137C201FE for ; Fri, 13 May 2016 12:03:10 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1b1Bn4-0005cL-M1; Fri, 13 May 2016 12:01:58 +0000 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1b1Bmt-0005MV-5d for linux-arm-kernel@lists.infradead.org; Fri, 13 May 2016 12:01:48 +0000 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: 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160513_050147_232952_33D026C9 X-CRM114-Status: GOOD ( 10.33 ) X-Spam-Score: -2.6 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jisheng Zhang , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-5.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, 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 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)