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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, 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 DC65BC47088 for ; Wed, 26 May 2021 12:18:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B1837613F1 for ; Wed, 26 May 2021 12:18:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233897AbhEZMUL (ORCPT ); Wed, 26 May 2021 08:20:11 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:4013 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233363AbhEZMUK (ORCPT ); Wed, 26 May 2021 08:20:10 -0400 Received: from dggems703-chm.china.huawei.com (unknown [172.30.72.58]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4Fqqg418LZzmZJv; Wed, 26 May 2021 20:16:16 +0800 (CST) Received: from dggema769-chm.china.huawei.com (10.1.198.211) by dggems703-chm.china.huawei.com (10.3.19.180) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2176.2; Wed, 26 May 2021 20:18:37 +0800 Received: from localhost (10.174.179.215) by dggema769-chm.china.huawei.com (10.1.198.211) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Wed, 26 May 2021 20:18:36 +0800 From: YueHaibing To: , CC: , , YueHaibing Subject: [PATCH -next] ALSA: core: use DEVICE_ATTR_*() macro Date: Wed, 26 May 2021 20:18:28 +0800 Message-ID: <20210526121828.8460-1-yuehaibing@huawei.com> X-Mailer: git-send-email 2.10.2.windows.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.174.179.215] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggema769-chm.china.huawei.com (10.1.198.211) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use DEVICE_ATTR_*() helper instead of plain DEVICE_ATTR, which makes the code a bit shorter and easier to read. Signed-off-by: YueHaibing --- sound/core/init.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/sound/core/init.c b/sound/core/init.c index 70114fd26956..228faf9369dc 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -665,17 +665,15 @@ void snd_card_set_id(struct snd_card *card, const char *nid) } EXPORT_SYMBOL(snd_card_set_id); -static ssize_t -card_id_show_attr(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t id_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct snd_card *card = container_of(dev, struct snd_card, card_dev); return scnprintf(buf, PAGE_SIZE, "%s\n", card->id); } -static ssize_t -card_id_store_attr(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t id_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct snd_card *card = container_of(dev, struct snd_card, card_dev); char buf1[sizeof(card->id)]; @@ -703,17 +701,16 @@ card_id_store_attr(struct device *dev, struct device_attribute *attr, return count; } -static DEVICE_ATTR(id, 0644, card_id_show_attr, card_id_store_attr); +static DEVICE_ATTR_RW(id); -static ssize_t -card_number_show_attr(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t number_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct snd_card *card = container_of(dev, struct snd_card, card_dev); return scnprintf(buf, PAGE_SIZE, "%i\n", card->number); } -static DEVICE_ATTR(number, 0444, card_number_show_attr, NULL); +static DEVICE_ATTR_RO(number); static struct attribute *card_dev_attrs[] = { &dev_attr_id.attr, -- 2.17.1