Merge branches 'fixes' and 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git...

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: core: fix unstable I/O with Canon camcorder

* 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: net: is not experimental anymore
  firewire: net: invalidate ARP entries of removed nodes

diff --git a/drivers/firewire/Kconfig b/drivers/firewire/Kconfig
index 68f942c..0c56989 100644 (file)
--- a/drivers/firewire/Kconfig
+++ b/drivers/firewire/Kconfig
@@ -49,15 +49,13 @@ config FIREWIRE_SBP2
          configuration section.
 
 config FIREWIRE_NET
-       tristate "IP networking over 1394 (EXPERIMENTAL)"
-       depends on FIREWIRE && INET && EXPERIMENTAL
+       tristate "IP networking over 1394"
+       depends on FIREWIRE && INET
        help
          This enables IPv4 over IEEE 1394, providing IP connectivity with
          other implementations of RFC 2734 as found on several operating
          systems.  Multicast support is currently limited.
 
-         NOTE, this driver is not stable yet!
-
          To compile this driver as a module, say M here:  The module will be
          called firewire-net.
 

diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
index be04923..24ff355 100644 (file)
--- a/drivers/firewire/core-card.c
+++ b/drivers/firewire/core-card.c
@@ -75,6 +75,8 @@ static size_t config_rom_length = 1 + 4 + 1 + 1;
 #define BIB_IRMC               ((1) << 31)
 #define NODE_CAPABILITIES      0x0c0083c0 /* per IEEE 1394 clause 8.3.2.6.5.2 */
 
+#define CANON_OUI              0x000085
+
 static void generate_config_rom(struct fw_card *card, __be32 *config_rom)
 {
        struct fw_descriptor *desc;
@@ -284,6 +286,7 @@ static void bm_work(struct work_struct *work)
        bool root_device_is_running;
        bool root_device_is_cmc;
        bool irm_is_1394_1995_only;
+       bool keep_this_irm;
 
        spin_lock_irq(&card->lock);
 
@@ -305,6 +308,10 @@ static void bm_work(struct work_struct *work)
        irm_is_1394_1995_only = irm_device && irm_device->config_rom &&
                        (irm_device->config_rom[2] & 0x000000f0) == 0;
 
+       /* Canon MV5i works unreliably if it is not root node. */
+       keep_this_irm = irm_device && irm_device->config_rom &&
+                       irm_device->config_rom[3] >> 8 == CANON_OUI;
+
        root_id  = root_node->node_id;
        irm_id   = card->irm_node->node_id;
        local_id = card->local_node->node_id;
@@ -333,7 +340,7 @@ static void bm_work(struct work_struct *work)
                        goto pick_me;
                }
 
-               if (irm_is_1394_1995_only) {
+               if (irm_is_1394_1995_only && !keep_this_irm) {
                        new_root_id = local_id;
                        fw_notify("%s, making local node (%02x) root.\n",
                                  "IRM is not 1394a compliant", new_root_id);
@@ -382,7 +389,7 @@ static void bm_work(struct work_struct *work)
 
                spin_lock_irq(&card->lock);
 
-               if (rcode != RCODE_COMPLETE) {
+               if (rcode != RCODE_COMPLETE && !keep_this_irm) {
                        /*
                         * The lock request failed, maybe the IRM
                         * isn't really IRM capable after all. Let's

diff --git a/drivers/firewire/net.c b/drivers/firewire/net.c
index c2e194c..7ed08fd 100644 (file)
--- 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)