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path: root/drivers/net/tun.c
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Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r--drivers/net/tun.c45
1 files changed, 28 insertions, 17 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index dc1b1dd9157c..bbd707b9ef7a 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -822,7 +822,18 @@ static void tun_net_uninit(struct net_device *dev)
/* Net device open. */
static int tun_net_open(struct net_device *dev)
{
+ struct tun_struct *tun = netdev_priv(dev);
+ int i;
+
netif_tx_start_all_queues(dev);
+
+ for (i = 0; i < tun->numqueues; i++) {
+ struct tun_file *tfile;
+
+ tfile = rtnl_dereference(tun->tfiles[i]);
+ tfile->socket.sk->sk_write_space(tfile->socket.sk);
+ }
+
return 0;
}
@@ -1103,9 +1114,10 @@ static unsigned int tun_chr_poll(struct file *file, poll_table *wait)
if (!skb_array_empty(&tfile->tx_array))
mask |= POLLIN | POLLRDNORM;
- if (sock_writeable(sk) ||
- (!test_and_set_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags) &&
- sock_writeable(sk)))
+ if (tun->dev->flags & IFF_UP &&
+ (sock_writeable(sk) ||
+ (!test_and_set_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags) &&
+ sock_writeable(sk))))
mask |= POLLOUT | POLLWRNORM;
if (tun->dev->reg_state != NETREG_REGISTERED)
@@ -1919,6 +1931,8 @@ static int set_offload(struct tun_struct *tun, unsigned long arg)
return -EINVAL;
tun->set_features = features;
+ tun->dev->wanted_features &= ~TUN_USER_FEATURES;
+ tun->dev->wanted_features |= features;
netdev_update_features(tun->dev);
return 0;
@@ -2430,18 +2444,16 @@ static struct miscdevice tun_miscdev = {
/* ethtool interface */
-static int tun_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- cmd->supported = 0;
- cmd->advertising = 0;
- ethtool_cmd_speed_set(cmd, SPEED_10);
- cmd->duplex = DUPLEX_FULL;
- cmd->port = PORT_TP;
- cmd->phy_address = 0;
- cmd->transceiver = XCVR_INTERNAL;
- cmd->autoneg = AUTONEG_DISABLE;
- cmd->maxtxpkt = 0;
- cmd->maxrxpkt = 0;
+static int tun_get_link_ksettings(struct net_device *dev,
+ struct ethtool_link_ksettings *cmd)
+{
+ ethtool_link_ksettings_zero_link_mode(cmd, supported);
+ ethtool_link_ksettings_zero_link_mode(cmd, advertising);
+ cmd->base.speed = SPEED_10;
+ cmd->base.duplex = DUPLEX_FULL;
+ cmd->base.port = PORT_TP;
+ cmd->base.phy_address = 0;
+ cmd->base.autoneg = AUTONEG_DISABLE;
return 0;
}
@@ -2504,7 +2516,6 @@ static int tun_set_coalesce(struct net_device *dev,
}
static const struct ethtool_ops tun_ethtool_ops = {
- .get_settings = tun_get_settings,
.get_drvinfo = tun_get_drvinfo,
.get_msglevel = tun_get_msglevel,
.set_msglevel = tun_set_msglevel,
@@ -2512,6 +2523,7 @@ static const struct ethtool_ops tun_ethtool_ops = {
.get_ts_info = ethtool_op_get_ts_info,
.get_coalesce = tun_get_coalesce,
.set_coalesce = tun_set_coalesce,
+ .get_link_ksettings = tun_get_link_ksettings,
};
static int tun_queue_resize(struct tun_struct *tun)
@@ -2570,7 +2582,6 @@ static int __init tun_init(void)
int ret = 0;
pr_info("%s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
- pr_info("%s\n", DRV_COPYRIGHT);
ret = rtnl_link_register(&tun_link_ops);
if (ret) {