> -----Original Message----- > From: Jason Wang [mailto:jasowang@xxxxxxxxxx] > Sent: Tuesday, February 11, 2014 4:51 AM > To: Haiyang Zhang; davem@xxxxxxxxxxxxx; netdev@xxxxxxxxxxxxxxx > Cc: KY Srinivasan; olaf@xxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; driverdev- > devel@xxxxxxxxxxxxxxxxxxxxxx > Subject: Re: [PATCH net,v2] hyperv: Fix the carrier status setting > > On 02/11/2014 02:15 AM, Haiyang Zhang wrote: > > Without this patch, the "cat /sys/class/net/ethN/operstate" shows > > "unknown", and "ethtool ethN" shows "Link detected: yes", when VM > > boots up with or without vNIC connected. > > > > This patch fixed the problem. > > > > Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx> > > Reviewed-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx> > > --- > > drivers/net/hyperv/netvsc_drv.c | 24 +++++++++++++++--------- > > 1 files changed, 15 insertions(+), 9 deletions(-) > > > > diff --git a/drivers/net/hyperv/netvsc_drv.c > > b/drivers/net/hyperv/netvsc_drv.c index 7756118..18916f7 100644 > > --- a/drivers/net/hyperv/netvsc_drv.c > > +++ b/drivers/net/hyperv/netvsc_drv.c > > @@ -88,8 +88,12 @@ static int netvsc_open(struct net_device *net) { > > struct net_device_context *net_device_ctx = netdev_priv(net); > > struct hv_device *device_obj = net_device_ctx->device_ctx; > > + struct netvsc_device *nvdev; > > + struct rndis_device *rdev; > > int ret = 0; > > > > + netif_carrier_off(net); > > + > > /* Open up the device */ > > ret = rndis_filter_open(device_obj); > > if (ret != 0) { > > @@ -99,6 +103,11 @@ static int netvsc_open(struct net_device *net) > > > > netif_start_queue(net); > > > > + nvdev = hv_get_drvdata(device_obj); > > + rdev = nvdev->extension; > > + if (!rdev->link_state) > > What if the link status interrupt comes here at this time? Thank you for pointing this out. I have submitted an updated patch. - Haiyang _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
