From patchwork Thu Jun 3 10:02:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Leizhen (ThunderTown)" X-Patchwork-Id: 12296801 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 27C0DC47096 for ; Thu, 3 Jun 2021 10:05:08 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E65A461182 for ; Thu, 3 Jun 2021 10:05:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E65A461182 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=s/iB9xrcj7O6suyjAaCth92Zhl99c0xUjkYrh7WOPac=; b=kviSzqjUqapvox 7zgGY8hDeGMpnO5rbGjQ/PbkNcblEcElnOZUT4IKdI6jkAbcC7UacgBF7iLO2V+Yl8lFNf9OcJqqS p+l/RSu3CKWtfHHkiw48J5wgDrarHVOit0CcHnJHBVjJ035qSjgPNA5swpibef/5VqZHAAQ9n9nUR BUp1jq013gNpxtgw3QB9sJdIvmVeydFYCXOdPzhp5SuuxTws/INChdGRDVxXsyCdhzKP/yuzZUu/h yb9lEcdRuKPNOlpxk9AJVLfWZk/T93Hetn8rR8+vQ9CAzjtKNDjICCTWZu3/OGUqGmyfUln1G4Jes UOxjelKbH4s4zAoN7eWA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lokC0-007zHf-IN; Thu, 03 Jun 2021 10:03:12 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lokBw-007zF6-NR for linux-arm-kernel@lists.infradead.org; Thu, 03 Jun 2021 10:03:10 +0000 Received: from dggemv711-chm.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4FwhGM2hmkzYqN9; Thu, 3 Jun 2021 18:00:11 +0800 (CST) Received: from dggpemm500006.china.huawei.com (7.185.36.236) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Thu, 3 Jun 2021 18:02:44 +0800 Received: from thunder-town.china.huawei.com (10.174.177.72) by dggpemm500006.china.huawei.com (7.185.36.236) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Thu, 3 Jun 2021 18:02:43 +0800 From: Zhen Lei To: Wolfgang Grandegger , Marc Kleine-Budde , "David S . Miller" , "Jakub Kicinski" , Nicolas Ferre , Alexandre Belloni , Ludovic Desroches , linux-can , netdev , linux-arm-kernel , linux-kernel CC: Zhen Lei Subject: [PATCH 1/1] can: at91_can: use DEVICE_ATTR_RW() helper macro Date: Thu, 3 Jun 2021 18:02:33 +0800 Message-ID: <20210603100233.11877-1-thunder.leizhen@huawei.com> X-Mailer: git-send-email 2.26.0.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.174.177.72] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To dggpemm500006.china.huawei.com (7.185.36.236) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210603_030308_958796_548E0B76 X-CRM114-Status: GOOD ( 10.98 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use DEVICE_ATTR_RW() helper macro instead of plain DEVICE_ATTR(), which makes the code a bit shorter and easier to read. Signed-off-by: Zhen Lei --- drivers/net/can/at91_can.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c index 04d0bb3ffe89661..ca736b26e218ca4 100644 --- a/drivers/net/can/at91_can.c +++ b/drivers/net/can/at91_can.c @@ -1176,8 +1176,8 @@ static const struct net_device_ops at91_netdev_ops = { .ndo_change_mtu = can_change_mtu, }; -static ssize_t at91_sysfs_show_mb0_id(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t mb0_id_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct at91_priv *priv = netdev_priv(to_net_dev(dev)); @@ -1187,8 +1187,8 @@ static ssize_t at91_sysfs_show_mb0_id(struct device *dev, return snprintf(buf, PAGE_SIZE, "0x%03x\n", priv->mb0_id); } -static ssize_t at91_sysfs_set_mb0_id(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) +static ssize_t mb0_id_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { struct net_device *ndev = to_net_dev(dev); struct at91_priv *priv = netdev_priv(ndev); @@ -1222,7 +1222,7 @@ static ssize_t at91_sysfs_set_mb0_id(struct device *dev, return ret; } -static DEVICE_ATTR(mb0_id, 0644, at91_sysfs_show_mb0_id, at91_sysfs_set_mb0_id); +static DEVICE_ATTR_RW(mb0_id); static struct attribute *at91_sysfs_attrs[] = { &dev_attr_mb0_id.attr,