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| author | Rémi Denis-Courmont <remi.denis-courmont@nokia.com> | 2008-12-15 09:53:57 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-15 09:53:57 +0100 |
| commit | 4798a2b84ea5a98e4f36a815a646cb48ff521684 (patch) | |
| tree | 353906b8ef910b62ef3ba9c6bc2d71a5db3bc974 | |
| parent | SCHED: netem: Correct documentation comment in code. (diff) | |
| download | linux-4798a2b84ea5a98e4f36a815a646cb48ff521684.tar.xz linux-4798a2b84ea5a98e4f36a815a646cb48ff521684.zip | |
Phonet: keep TX queue disabled when the device is off
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/phonet/pep-gprs.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/net/phonet/pep-gprs.c b/net/phonet/pep-gprs.c index 9978afbd9f2a..803eeef0aa85 100644 --- a/net/phonet/pep-gprs.c +++ b/net/phonet/pep-gprs.c @@ -155,12 +155,13 @@ static void gprs_data_ready(struct sock *sk, int len) static void gprs_write_space(struct sock *sk) { struct gprs_dev *dev = sk->sk_user_data; + struct net_device *net = dev->net; unsigned credits = pep_writeable(sk); spin_lock_bh(&dev->tx_lock); dev->tx_max = credits; - if (credits > skb_queue_len(&dev->tx_queue)) - netif_wake_queue(dev->net); + if (credits > skb_queue_len(&dev->tx_queue) && netif_running(net)) + netif_wake_queue(net); spin_unlock_bh(&dev->tx_lock); } @@ -168,6 +169,23 @@ static void gprs_write_space(struct sock *sk) * Network device callbacks */ +static int gprs_open(struct net_device *dev) +{ + struct gprs_dev *gp = netdev_priv(dev); + + gprs_write_space(gp->sk); + return 0; +} + +static int gprs_close(struct net_device *dev) +{ + struct gprs_dev *gp = netdev_priv(dev); + + netif_stop_queue(dev); + flush_work(&gp->tx_work); + return 0; +} + static int gprs_xmit(struct sk_buff *skb, struct net_device *net) { struct gprs_dev *dev = netdev_priv(net); @@ -254,6 +272,8 @@ static void gprs_setup(struct net_device *net) net->tx_queue_len = 10; net->destructor = free_netdev; + net->open = gprs_open; + net->stop = gprs_close; net->hard_start_xmit = gprs_xmit; /* mandatory */ net->change_mtu = gprs_set_mtu; net->get_stats = gprs_get_stats; @@ -318,7 +338,6 @@ int gprs_attach(struct sock *sk) dev->sk = sk; printk(KERN_DEBUG"%s: attached\n", net->name); - gprs_write_space(sk); /* kick off TX */ return net->ifindex; out_rel: @@ -341,7 +360,5 @@ void gprs_detach(struct sock *sk) printk(KERN_DEBUG"%s: detached\n", net->name); unregister_netdev(net); - flush_scheduled_work(); sock_put(sk); - skb_queue_purge(&dev->tx_queue); } |