From patchwork Tue Jun 21 03:56:23 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Yisen.Zhuang(Zhuangyuzeng)" X-Patchwork-Id: 9189277 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 958DE6075E for ; Tue, 21 Jun 2016 03:43:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 85AA227F17 for ; Tue, 21 Jun 2016 03:43:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7A39B27F93; Tue, 21 Jun 2016 03:43:30 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 309C027F17 for ; Tue, 21 Jun 2016 03:43:30 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bFCZZ-0000sH-3r; Tue, 21 Jun 2016 03:41:57 +0000 Received: from szxga02-in.huawei.com ([119.145.14.65]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bFCXH-0005uO-W5 for linux-arm-kernel@lists.infradead.org; Tue, 21 Jun 2016 03:39:37 +0000 Received: from 172.24.1.60 (EHLO szxeml425-hub.china.huawei.com) ([172.24.1.60]) by szxrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DJC12106; Tue, 21 Jun 2016 11:38:13 +0800 (CST) Received: from localhost.localdomain (10.67.212.75) by szxeml425-hub.china.huawei.com (10.82.67.180) with Microsoft SMTP Server id 14.3.235.1; Tue, 21 Jun 2016 11:37:59 +0800 From: Yisen Zhuang To: , , , Subject: [PATCH net-next 03/19] net: hns: add skb_reset_mac_header() after skb being alloc Date: Tue, 21 Jun 2016 11:56:23 +0800 Message-ID: <1466481399-70080-4-git-send-email-Yisen.Zhuang@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1466481399-70080-1-git-send-email-Yisen.Zhuang@huawei.com> References: <1466481399-70080-1-git-send-email-Yisen.Zhuang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.212.75] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090205.5768B6A6.0046, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 459cbd6df1a777e695be9da5452ec991 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160620_203936_756189_A346ED98 X-CRM114-Status: GOOD ( 10.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ivecera@redhat.com, andrew@lunn.ch, fengguang.wu@intel.com, liguozhu@huawei.com, arnd@arndb.de, charles.chenxin@huawei.com, linux-kernel@vger.kernel.org, linuxarm@huawei.com, geliangtang@163.com, huangdaode@hisilicon.com, netdev@vger.kernel.org, andriy.shevchenko@linux.intel.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Kejian Yan HNS receives a packet without doing anything, but it should call skb_reset_mac_header() to initialize the header before using eth_hdr(). Fixes: 0d6b425a3773c3445b0f51b2f333821beaacb619 Signed-off-by: Kejian Yan Signed-off-by: Yisen Zhuang --- drivers/net/ethernet/hisilicon/hns/hns_enet.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index ad742a6..15200e4 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -600,6 +600,7 @@ static int hns_nic_poll_rx_skb(struct hns_nic_ring_data *ring_data, ring->stats.sw_err_cnt++; return -ENOMEM; } + skb_reset_mac_header(skb); prefetchw(skb->data); length = le16_to_cpu(desc->rx.pkt_len);