From: Kevin Cernekee Date: Mon, 25 Jun 2012 04:11:22 +0000 (-0700) Subject: usb: gadget: Fix g_ether interface link status X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=31bde1ceaa873bcaecd49e829bfabceacc4c512d;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git usb: gadget: Fix g_ether interface link status A "usb0" interface that has never been connected to a host has an unknown operstate, and therefore the IFF_RUNNING flag is (incorrectly) asserted when queried by ifconfig, ifplugd, etc. This is a result of calling netif_carrier_off() too early in the probe function; it should be called after register_netdev(). Similar problems have been fixed in many other drivers, e.g.: e826eafa6 (bonding: Call netif_carrier_off after register_netdevice) 0d672e9f8 (drivers/net: Call netif_carrier_off at the end of the probe) 6a3c869a6 (cxgb4: fix reported state of interfaces without link) Fix is to move netif_carrier_off() to the end of the function. Cc: stable@vger.kernel.org Signed-off-by: Kevin Cernekee Signed-off-by: Felipe Balbi --- diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index 47cf48b51c9d..5b46f022d0f0 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -798,12 +798,6 @@ int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], SET_ETHTOOL_OPS(net, &ops); - /* two kinds of host-initiated state changes: - * - iff DATA transfer is active, carrier is "on" - * - tx queueing enabled if open *and* carrier is "on" - */ - netif_carrier_off(net); - dev->gadget = g; SET_NETDEV_DEV(net, &g->dev); SET_NETDEV_DEVTYPE(net, &gadget_type); @@ -817,6 +811,12 @@ int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], INFO(dev, "HOST MAC %pM\n", dev->host_mac); the_dev = dev; + + /* two kinds of host-initiated state changes: + * - iff DATA transfer is active, carrier is "on" + * - tx queueing enabled if open *and* carrier is "on" + */ + netif_carrier_off(net); } return status;