From patchwork Thu Sep 20 12:33:01 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yue Haibing X-Patchwork-Id: 10607645 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 876356CB for ; Thu, 20 Sep 2018 12:49:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 784282D452 for ; Thu, 20 Sep 2018 12:49:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6C7C72D461; Thu, 20 Sep 2018 12:49:54 +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 0D6042D452 for ; Thu, 20 Sep 2018 12:49:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388333AbeITScT (ORCPT ); Thu, 20 Sep 2018 14:32:19 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:12660 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2387764AbeITScT (ORCPT ); Thu, 20 Sep 2018 14:32:19 -0400 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id C52AE7C16A8C3; Thu, 20 Sep 2018 20:48:51 +0800 (CST) Received: from localhost (10.177.31.96) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.399.0; Thu, 20 Sep 2018 20:48:45 +0800 From: YueHaibing To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , , , , YueHaibing Subject: [PATCH net-next 17/22] hv_netvsc: fix return type of ndo_start_xmit function Date: Thu, 20 Sep 2018 20:33:01 +0800 Message-ID: <20180920123306.14772-18-yuehaibing@huawei.com> X-Mailer: git-send-email 2.10.2.windows.1 In-Reply-To: <20180920123306.14772-1-yuehaibing@huawei.com> References: <20180920123306.14772-1-yuehaibing@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.31.96] X-CFilter-Loop: Reflected Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing --- drivers/net/hyperv/netvsc_drv.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 3af6d8d..056c472 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -511,7 +511,8 @@ static int netvsc_vf_xmit(struct net_device *net, struct net_device *vf_netdev, return rc; } -static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net) +static netdev_tx_t +netvsc_start_xmit(struct sk_buff *skb, struct net_device *net) { struct net_device_context *net_device_ctx = netdev_priv(net); struct hv_netvsc_packet *packet = NULL; @@ -528,8 +529,11 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net) */ vf_netdev = rcu_dereference_bh(net_device_ctx->vf_netdev); if (vf_netdev && netif_running(vf_netdev) && - !netpoll_tx_running(net)) - return netvsc_vf_xmit(net, vf_netdev, skb); + !netpoll_tx_running(net)) { + ret = netvsc_vf_xmit(net, vf_netdev, skb); + if (ret) + return NETDEV_TX_BUSY; + } /* We will atmost need two pages to describe the rndis * header. We can only transmit MAX_PAGE_BUFFER_COUNT number