From patchwork Mon Mar 18 14:07:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yufen Yu X-Patchwork-Id: 10857697 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 15E221669 for ; Mon, 18 Mar 2019 14:02:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EDAAA29222 for ; Mon, 18 Mar 2019 14:02:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DED6D29263; Mon, 18 Mar 2019 14:02:52 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 90EE129222 for ; Mon, 18 Mar 2019 14:02:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726782AbfCROCw (ORCPT ); Mon, 18 Mar 2019 10:02:52 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:36380 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727602AbfCROCv (ORCPT ); Mon, 18 Mar 2019 10:02:51 -0400 Received: from DGGEMS401-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id A8BEA6084FFF19F973FC; Mon, 18 Mar 2019 22:02:47 +0800 (CST) Received: from huawei.com (10.90.53.225) by DGGEMS401-HUB.china.huawei.com (10.3.19.201) with Microsoft SMTP Server id 14.3.408.0; Mon, 18 Mar 2019 22:02:46 +0800 From: Yufen Yu To: CC: , , Subject: [PATCH 2/2] block: remove unnecessary statement in blk_free_devt Date: Mon, 18 Mar 2019 22:07:03 +0800 Message-ID: <20190318140703.28963-3-yuyufen@huawei.com> X-Mailer: git-send-email 2.16.2.dirty In-Reply-To: <20190318140703.28963-1-yuyufen@huawei.com> References: <20190318140703.28963-1-yuyufen@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.225] X-CFilter-Loop: Reflected Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If devt is MKDEV(0, 0), its MAJOR cannot be BLOCK_EXT_MAJOR, so, I think we can remove the statement. Signed-off-by: Yufen Yu --- block/genhd.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index f00198e6758a..961b2bc4634f 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -522,9 +522,6 @@ int blk_alloc_devt(struct hd_struct *part, dev_t *devt) */ void blk_free_devt(dev_t devt) { - if (devt == MKDEV(0, 0)) - return; - if (MAJOR(devt) == BLOCK_EXT_MAJOR) { spin_lock_bh(&ext_devt_lock); idr_remove(&ext_devt_idr, blk_mangle_minor(MINOR(devt)));