From patchwork Wed Dec 23 14:14:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zheng Yongjun X-Patchwork-Id: 351729 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 30BA2C433DB for ; Wed, 23 Dec 2020 14:15:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 008EB23370 for ; Wed, 23 Dec 2020 14:15:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728762AbgLWOOt (ORCPT ); Wed, 23 Dec 2020 09:14:49 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:9476 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728759AbgLWOOt (ORCPT ); Wed, 23 Dec 2020 09:14:49 -0500 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4D1FYR5HF1zhvSN; Wed, 23 Dec 2020 22:13:31 +0800 (CST) Received: from ubuntu.network (10.175.138.68) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.498.0; Wed, 23 Dec 2020 22:13:56 +0800 From: Zheng Yongjun To: , , , CC: Zheng Yongjun Subject: [PATCH -next] usb: usbip: Use DEFINE_SPINLOCK() for spinlock Date: Wed, 23 Dec 2020 22:14:31 +0800 Message-ID: <20201223141431.835-1-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: linux-usb@vger.kernel.org spinlock can be initialized automatically with DEFINE_SPINLOCK() rather than explicitly calling spin_lock_init(). Signed-off-by: Zheng Yongjun Acked-by: Shuah Khan --- drivers/usb/usbip/stub_main.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/usb/usbip/stub_main.c b/drivers/usb/usbip/stub_main.c index c1c0bbc9f8b1..77a5b3f8736a 100644 --- a/drivers/usb/usbip/stub_main.c +++ b/drivers/usb/usbip/stub_main.c @@ -23,7 +23,7 @@ struct kmem_cache *stub_priv_cache; */ #define MAX_BUSID 16 static struct bus_id_priv busid_table[MAX_BUSID]; -static spinlock_t busid_table_lock; +static DEFINE_SPINLOCK(busid_table_lock); static void init_busid_table(void) { @@ -35,8 +35,6 @@ static void init_busid_table(void) */ memset(busid_table, 0, sizeof(busid_table)); - spin_lock_init(&busid_table_lock); - for (i = 0; i < MAX_BUSID; i++) spin_lock_init(&busid_table[i].busid_lock); }