X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fnet%2Ftun.c;h=55f3a3e667a9af0291da7c7d4e46c12e84d7ce6a;hb=1d212aa96e1b63459486f729af9a3fa38768b801;hp=63042596f0cf34962afe9c25133e27b0aa746701;hpb=e8eb6228094bcf0c84d9aa32b6363e78da68e1f5;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 63042596f0cf..55f3a3e667a9 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -149,6 +149,7 @@ static int tun_attach(struct tun_struct *tun, struct file *file)
 	tfile->tun = tun;
 	tun->tfile = tfile;
 	tun->socket.file = file;
+	netif_carrier_on(tun->dev);
 	dev_hold(tun->dev);
 	sock_hold(tun->socket.sk);
 	atomic_inc(&tfile->count);
@@ -162,6 +163,7 @@ static void __tun_detach(struct tun_struct *tun)
 {
 	/* Detach from net device */
 	netif_tx_lock_bh(tun->dev);
+	netif_carrier_off(tun->dev);
 	tun->tfile = NULL;
 	tun->socket.file = NULL;
 	netif_tx_unlock_bh(tun->dev);
@@ -1574,12 +1576,6 @@ static void tun_set_msglevel(struct net_device *dev, u32 value)
 #endif
 }
 
-static u32 tun_get_link(struct net_device *dev)
-{
-	struct tun_struct *tun = netdev_priv(dev);
-	return !!tun->tfile;
-}
-
 static u32 tun_get_rx_csum(struct net_device *dev)
 {
 	struct tun_struct *tun = netdev_priv(dev);
@@ -1601,7 +1597,7 @@ static const struct ethtool_ops tun_ethtool_ops = {
 	.get_drvinfo	= tun_get_drvinfo,
 	.get_msglevel	= tun_get_msglevel,
 	.set_msglevel	= tun_set_msglevel,
-	.get_link	= tun_get_link,
+	.get_link	= ethtool_op_get_link,
 	.get_rx_csum	= tun_get_rx_csum,
 	.set_rx_csum	= tun_set_rx_csum
 };