From patchwork Mon Jan 28 00:30:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Yang X-Patchwork-Id: 10783111 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 1B9106C2 for ; Mon, 28 Jan 2019 00:31:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0B00F2A57C for ; Mon, 28 Jan 2019 00:31:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F37582A580; Mon, 28 Jan 2019 00:31:16 +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=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id BFF1B2A57C for ; Mon, 28 Jan 2019 00:31:16 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id B534F211BA44B; Sun, 27 Jan 2019 16:31:16 -0800 (PST) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received-SPF: None (no SPF record) identity=mailfrom; client-ip=134.134.136.126; helo=mga18.intel.com; envelope-from=richardw.yang@linux.intel.com; receiver=linux-nvdimm@lists.01.org Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id C215E2194D387 for ; Sun, 27 Jan 2019 16:31:15 -0800 (PST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Jan 2019 16:31:15 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,532,1539673200"; d="scan'208";a="294898064" Received: from richard.sh.intel.com (HELO localhost) ([10.239.159.37]) by orsmga005.jf.intel.com with ESMTP; 27 Jan 2019 16:31:14 -0800 From: Wei Yang To: linux-nvdimm@lists.01.org Subject: [PATCH 3/5] libnvdimm, label: return nd_label directly instead of calculating it again Date: Mon, 28 Jan 2019 08:30:16 +0800 Message-Id: <20190128003018.4087-3-richardw.yang@linux.intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190128003018.4087-1-richardw.yang@linux.intel.com> References: <20190128003018.4087-1-richardw.yang@linux.intel.com> MIME-Version: 1.0 X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: zwisler@kernel.org Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP In nd_label_active(), we get nd_label from label area. While it is not necessary to calculate it a second time. This patch return nd_label directly. Signed-off-by: Wei Yang --- drivers/nvdimm/label.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c index 750dbaa6ce82..63b7d40fe9d4 100644 --- a/drivers/nvdimm/label.c +++ b/drivers/nvdimm/label.c @@ -587,7 +587,7 @@ struct nd_namespace_label *nd_label_active(struct nvdimm_drvdata *ndd, int n) continue; if (n-- == 0) - return to_label(ndd, slot); + return nd_label; } return NULL;