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 EBB92C433DB for ; Thu, 24 Dec 2020 13:23:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B0CFE2222B for ; Thu, 24 Dec 2020 13:23:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728859AbgLXNX2 (ORCPT ); Thu, 24 Dec 2020 08:23:28 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:9683 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728771AbgLXNX2 (ORCPT ); Thu, 24 Dec 2020 08:23:28 -0500 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4D1rMJ4BhYzkvQJ; Thu, 24 Dec 2020 21:21:48 +0800 (CST) Received: from ubuntu.network (10.175.138.68) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.498.0; Thu, 24 Dec 2020 21:22:36 +0800 From: Zheng Yongjun To: , , , CC: Zheng Yongjun Subject: [PATCH v2 -next] hwtracing: stm: use DEFINE_MUTEX() for mutex lock Date: Thu, 24 Dec 2020 21:23:13 +0800 Message-ID: <20201224132313.31070-1-zhengyongjun3@huawei.com> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.138.68] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org mutex lock can be initialized automatically with DEFINE_MUTEX() rather than explicitly calling mutex_init(). Signed-off-by: Zheng Yongjun --- drivers/hwtracing/stm/core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index 2712e699ba08..84c4af6c6dd6 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -367,7 +367,7 @@ static int major_match(struct device *dev, const void *data) * with the STM class framework. */ static struct list_head stm_pdrv_head; -static struct mutex stm_pdrv_mutex; +static DEFINE_MUTEX(stm_pdrv_mutex); struct stm_pdrv_entry { struct list_head entry; @@ -1326,7 +1326,6 @@ static int __init stm_core_init(void) init_srcu_struct(&stm_source_srcu); INIT_LIST_HEAD(&stm_pdrv_head); - mutex_init(&stm_pdrv_mutex); /* * So as to not confuse existing users with a requirement -- 2.22.0