Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / net / netrom / af_netrom.c

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 3669cb9..1d50f80 100644 (file)
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -8,7 +8,6 @@
  * Copyright Alan Cox GW4PTS (alan@lxorguk.ukuu.org.uk)
  * Copyright Darryl Miles G7LED (dlm@g7led.demon.co.uk)
  */
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/capability.h>
@@ -66,6 +65,14 @@ static DEFINE_SPINLOCK(nr_list_lock);
 
 static const struct proto_ops nr_proto_ops;
 
+/*
+ * NETROM network devices are virtual network devices encapsulating NETROM
+ * frames into AX.25 which will be sent through an AX.25 device, so form a
+ * special "super class" of normal net devices; split their locks off into a
+ * separate class since they always nest.
+ */
+static struct lock_class_key nr_netdev_xmit_lock_key;
+
 /*
  *     Socket removal during an interrupt is now safe.
  */
@@ -801,7 +808,7 @@ static int nr_accept(struct socket *sock, struct socket *newsock, int flags)
 
        /* Now attach up the new socket */
        kfree_skb(skb);
-       sk->sk_ack_backlog--;
+       sk_acceptq_removed(sk);
        newsock->sk = newsk;
 
 out:
@@ -986,19 +993,19 @@ int nr_rx_frame(struct sk_buff *skb, struct net_device *dev)
        nr_make->vr        = 0;
        nr_make->vl        = 0;
        nr_make->state     = NR_STATE_3;
-       sk->sk_ack_backlog++;
-
-       nr_insert_socket(make);
-
+       sk_acceptq_added(sk);
        skb_queue_head(&sk->sk_receive_queue, skb);
 
-       nr_start_heartbeat(make);
-       nr_start_idletimer(make);
-
        if (!sock_flag(sk, SOCK_DEAD))
                sk->sk_data_ready(sk, skb->len);
 
        bh_unlock_sock(sk);
+
+       nr_insert_socket(make);
+
+       nr_start_heartbeat(make);
+       nr_start_idletimer(make);
+
        return 1;
 }
 
@@ -1383,14 +1390,12 @@ static int __init nr_proto_init(void)
                return -1;
        }
 
-       dev_nr = kmalloc(nr_ndevs * sizeof(struct net_device *), GFP_KERNEL);
+       dev_nr = kzalloc(nr_ndevs * sizeof(struct net_device *), GFP_KERNEL);
        if (dev_nr == NULL) {
                printk(KERN_ERR "NET/ROM: nr_proto_init - unable to allocate device array\n");
                return -1;
        }
 
-       memset(dev_nr, 0x00, nr_ndevs * sizeof(struct net_device *));
-
        for (i = 0; i < nr_ndevs; i++) {
                char name[IFNAMSIZ];
                struct net_device *dev;
@@ -1408,6 +1413,7 @@ static int __init nr_proto_init(void)
                        free_netdev(dev);
                        goto fail;
                }
+               lockdep_set_class(&dev->_xmit_lock, &nr_netdev_xmit_lock_key);
                dev_nr[i] = dev;
        }