Received: by 2002:a17:90a:728b:0:0:0:0 with SMTP id e11csp8885271pjg; Fri, 8 May 2020 05:11:12 -0700 (PDT) X-Google-Smtp-Source: APiQypJZ4pKE9nm2x3ZHrAQhsXRhOvtUlmyRQUmu7w+mAhe0H9C2WM7LxnW3QrSUmg4P2B4XqrvN X-Received: by 2002:a17:906:4003:: with SMTP id v3mr1588956ejj.144.1588939872112; Fri, 08 May 2020 05:11:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1588939872; cv=none; d=google.com; s=arc-20160816; b=pJrer6H2kb58tLHEM+zNsLbHoW4kPF10OdEQcxrfi2vZejjbiMZ0N/+DRAbiOf9IxE eKQZMsos8grnJRW9a6DkIjW02Hjl5UbbYYx4Nj/asjZaA9XAwPGIFEMP/LMQeu20K/8i BF/TvcNEPvvk/FRTv7MxY9p0XXWcdNMQB9kRgEPmz4kJtSmKEDD9IpnI4dbgZUlVjbKa OhoinnxvVP7HpoZ83rzR3GmUWpjbS+zCOESOwKSda9sevGOpKp6aOY+yOUeWXZIa/BZ6 VwfcIAtVYSvb5dn0PyQl08L7jXPaRKS61+NHlUyIMzx4xqtrM5Oum5/MyEIlLaQgAOip kSJA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=MID0hHN/K+CYLeBMcDlGqIEv650GkLaU5we2Y2+bSJ4=; b=xX+FfX8fk92IDEE33LcVgKRor32tPE1AUh7RAokrzkatteJo4NJmcSKjrkW4ECmnO2 jpf3dqS9uetyEDlSGVTNMoWWRPdRfuIEztVH66KpgDprsiB8xXXISPDgsSfPS+sR0Uyf 2G2Hy/e0SNc9JKs01SGMxWHylx9vQYOamYl8NmsXsJLHn19e89jGJvWwPHGAGwQ8R6RX ZxyaknLHVdRXmIoTenbq65zQtOu1Dj6LwwaU76e6qhNdnr5c/fbczz9TMpUgc7XdBfVU Af1RZradoZmdiX9q8ZTWBL151W08jAkW2m1DQ+CKjPpRCNZTTAKczqgpm1prAyyITPnL jegQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id g8si912982edn.504.2020.05.08.05.10.48; Fri, 08 May 2020 05:11:12 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726817AbgEHMGq (ORCPT + 99 others); Fri, 8 May 2020 08:06:46 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:4303 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726616AbgEHMGq (ORCPT ); Fri, 8 May 2020 08:06:46 -0400 Received: from DGGEMS411-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 71793139C267C3A8E53A; Fri, 8 May 2020 20:06:44 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS411-HUB.china.huawei.com (10.3.19.211) with Microsoft SMTP Server id 14.3.487.0; Fri, 8 May 2020 20:06:36 +0800 From: Chen Zhou To: , , CC: , , Subject: [PATCH -next] PCI: endpoint: use kmemdup_nul() in pci_epf_create() Date: Fri, 8 May 2020 20:10:29 +0800 Message-ID: <20200508121029.167018-1-chenzhou10@huawei.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It is more efficient to use kmemdup_nul() if the size is known exactly. The doc in kernel: "Note: Use kmemdup_nul() instead if the size is known exactly." Signed-off-by: Chen Zhou --- drivers/pci/endpoint/pci-epf-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c index 244e00f48c5c..f035d2ebcae5 100644 --- a/drivers/pci/endpoint/pci-epf-core.c +++ b/drivers/pci/endpoint/pci-epf-core.c @@ -252,7 +252,7 @@ struct pci_epf *pci_epf_create(const char *name) return ERR_PTR(-ENOMEM); len = strchrnul(name, '.') - name; - epf->name = kstrndup(name, len, GFP_KERNEL); + epf->name = kmemdup_nul(name, len, GFP_KERNEL); if (!epf->name) { kfree(epf); return ERR_PTR(-ENOMEM); -- 2.20.1