On 2018/9/20 22:43, Stephen Hemminger wrote: > On Thu, 20 Sep 2018 20:33:01 +0800 > YueHaibing <yuehaib...@huawei.com> wrote: > >> 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 <yuehaib...@huawei.com> >> --- >> 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; >> + } > > Sorry, the new code is wrong. It will fall through if ret == 0 (NETDEV_TX_OK) > Please review and test your patches.
I'm sorry for this, will correct it as Haiyang's suggestion. > > . > _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel