From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 417CCC83003 for ; Wed, 29 Apr 2020 03:29:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 224C2206D8 for ; Wed, 29 Apr 2020 03:29:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726691AbgD2D31 (ORCPT ); Tue, 28 Apr 2020 23:29:27 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:55650 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726551AbgD2D30 (ORCPT ); Tue, 28 Apr 2020 23:29:26 -0400 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 6A0E7431E02F50010AA4; Wed, 29 Apr 2020 11:29:24 +0800 (CST) Received: from linux-lmwb.huawei.com (10.175.103.112) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.487.0; Wed, 29 Apr 2020 11:29:17 +0800 From: Zou Wei To: , CC: , , Zou Wei Subject: [PATCH -next] hinic: Use kmemdup instead of kzalloc and memcpy Date: Wed, 29 Apr 2020 11:35:28 +0800 Message-ID: <1588131328-49470-1-git-send-email-zou_wei@huawei.com> X-Mailer: git-send-email 2.6.2 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.175.103.112] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fixes coccicheck warnings: drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:452:17-24: WARNING opportunity for kmemdup drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c:458:23-30: WARNING opportunity for kmemdup Reported-by: Hulk Robot Signed-off-by: Zou Wei --- drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c b/drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c index f8626df..a39cc16 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_mbox.c @@ -449,18 +449,15 @@ static void recv_mbox_handler(struct hinic_mbox_func_to_func *func_to_func, return; } - rcv_mbox_temp = kzalloc(sizeof(*rcv_mbox_temp), GFP_KERNEL); + rcv_mbox_temp = kmemdup(recv_mbox, sizeof(*rcv_mbox_temp), GFP_KERNEL); if (!rcv_mbox_temp) return; - memcpy(rcv_mbox_temp, recv_mbox, sizeof(*rcv_mbox_temp)); - - rcv_mbox_temp->mbox = kzalloc(MBOX_MAX_BUF_SZ, GFP_KERNEL); + rcv_mbox_temp->mbox = kmemdup(recv_mbox->mbox, MBOX_MAX_BUF_SZ, + GFP_KERNEL); if (!rcv_mbox_temp->mbox) goto err_alloc_rcv_mbox_msg; - memcpy(rcv_mbox_temp->mbox, recv_mbox->mbox, MBOX_MAX_BUF_SZ); - rcv_mbox_temp->buf_out = kzalloc(MBOX_MAX_BUF_SZ, GFP_KERNEL); if (!rcv_mbox_temp->buf_out) goto err_alloc_rcv_mbox_buf; -- 2.6.2