From mboxrd@z Thu Jan 1 00:00:00 1970 From: 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> References: <20180920123306.14772-1-yuehaibing@huawei.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180920123306.14772-1-yuehaibing@huawei.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" To: davem@davemloft.net, dmitry.tarnyagin@lockless.no, wg@grandegger.com, mkl@pengutronix.de, michal.simek@xilinx.com, hsweeten@visionengravers.com, madalin.bucur@nxp.com, pantelis.antoniou@gmail.com, claudiu.manoil@nxp.com, leoyang.li@nxp.com, linux@armlinux.org.uk, sammy@sammy.net, ralf@linux-mips.org, nico@fluxnic.net, steve.glendinning@shawell.net, f.fainelli@gmail.com, grygorii.strashko@ti.com, w-kwok2@ti.com, m-karicheri2@ti.com, t.sailer@alumni.ethz.ch, jreuter@yaina.de, kys@microsoft.com, haiyangz@microsoft.com, wei.liu2@citrix.com, paul.durrant@citrix.com, arvid.brodin@alten.se, pshelar@ovn.org Cc: dev@openvswitch.org, linux-mips@linux-mips.org, xen-devel@lists.xenproject.org, netdev@vger.kernel.org, linux-usb@vger.kernel.org, YueHaibing , linux-kernel@vger.kernel.org, linux-can@vger.kernel.org, devel@linuxdriverproject.org, linux-hams@vger.kernel.org, linux-omap@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org 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 -- 1.8.3.1