From patchwork Thu Dec 24 13:22:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zheng Yongjun X-Patchwork-Id: 11989591 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=unavailable 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 1B45DC433E9 for ; Thu, 24 Dec 2020 13:23:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E2CC7224B1 for ; Thu, 24 Dec 2020 13:23:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728727AbgLXNXP (ORCPT ); Thu, 24 Dec 2020 08:23:15 -0500 Received: from szxga07-in.huawei.com ([45.249.212.35]:10360 "EHLO szxga07-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726746AbgLXNXO (ORCPT ); Thu, 24 Dec 2020 08:23:14 -0500 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4D1rMD6XT0z7HsC; Thu, 24 Dec 2020 21:21:44 +0800 (CST) Received: from ubuntu.network (10.175.138.68) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.498.0; Thu, 24 Dec 2020 21:22:18 +0800 From: Zheng Yongjun To: , , CC: , , Zheng Yongjun Subject: [PATCH v2 -next] dma: idxd: use DEFINE_MUTEX() for mutex lock Date: Thu, 24 Dec 2020 21:22:54 +0800 Message-ID: <20201224132254.30961-1-zhengyongjun3@huawei.com> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 X-Originating-IP: [10.175.138.68] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org mutex lock can be initialized automatically with DEFINE_MUTEX() rather than explicitly calling mutex_init(). Signed-off-by: Zheng Yongjun Acked-by: Dave Jiang --- drivers/dma/idxd/init.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c index 0a4432b063b5..2297c93dd527 100644 --- a/drivers/dma/idxd/init.c +++ b/drivers/dma/idxd/init.c @@ -27,7 +27,7 @@ MODULE_AUTHOR("Intel Corporation"); #define DRV_NAME "idxd" static struct idr idxd_idrs[IDXD_TYPE_MAX]; -static struct mutex idxd_idr_lock; +static DEFINE_MUTEX(idxd_idr_lock); static struct pci_device_id idxd_pci_tbl[] = { /* DSA ver 1.0 platforms */ @@ -481,7 +481,6 @@ static int __init idxd_init_module(void) pr_info("%s: Intel(R) Accelerator Devices Driver %s\n", DRV_NAME, IDXD_DRIVER_VERSION); - mutex_init(&idxd_idr_lock); for (i = 0; i < IDXD_TYPE_MAX; i++) idr_init(&idxd_idrs[i]);