diff options
| author | Maxim Levitsky <maximlevitsky@gmail.com> | 2010-11-29 04:09:52 +0200 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2011-01-21 00:36:00 +0100 |
| commit | 74a145049938b73b7e5421423f64a254d4192d3f (patch) | |
| tree | fc79d839596b87449dbb34317d1d282c2e54b6b7 | |
| parent | c56eb8fb6dccb83d9fe62fd4dc00c834de9bc470 (diff) | |
| download | linux-74a145049938b73b7e5421423f64a254d4192d3f.tar.bz2 | |
firewire: net: invalidate ARP entries of removed nodes
This makes it possible to resume communication with a node that dropped
off the bus for a brief period. Otherwise communication will only be
possible after ARP cache entry timeouts.
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (rebased)
| -rw-r--r-- | drivers/firewire/net.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/firewire/net.c b/drivers/firewire/net.c index c2e194c58667..7ed08fd1214e 100644 --- a/drivers/firewire/net.c +++ b/drivers/firewire/net.c @@ -191,6 +191,7 @@ struct fwnet_peer { struct fwnet_device *dev; u64 guid; u64 fifo; + __be32 ip; /* guarded by dev->lock */ struct list_head pd_list; /* received partial datagrams */ @@ -570,6 +571,8 @@ static int fwnet_finish_incoming_packet(struct net_device *net, peer->speed = sspd; if (peer->max_payload > max_payload) peer->max_payload = max_payload; + + peer->ip = arp1394->sip; } spin_unlock_irqrestore(&dev->lock, flags); @@ -1470,6 +1473,7 @@ static int fwnet_add_peer(struct fwnet_device *dev, peer->dev = dev; peer->guid = (u64)device->config_rom[3] << 32 | device->config_rom[4]; peer->fifo = FWNET_NO_FIFO_ADDR; + peer->ip = 0; INIT_LIST_HEAD(&peer->pd_list); peer->pdg_size = 0; peer->datagram_label = 0; @@ -1589,10 +1593,13 @@ static int fwnet_remove(struct device *_dev) mutex_lock(&fwnet_device_mutex); + net = dev->netdev; + if (net && peer->ip) + arp_invalidate(net, peer->ip); + fwnet_remove_peer(peer, dev); if (list_empty(&dev->peer_list)) { - net = dev->netdev; unregister_netdev(net); if (dev->local_fifo != FWNET_NO_FIFO_ADDR) |