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-rw-r--r--include/net/ax25.h10
-rw-r--r--net/ax25/ax25_iface.c55
-rw-r--r--net/netrom/af_netrom.c8
-rw-r--r--net/rose/af_rose.c8
4 files changed, 29 insertions, 52 deletions
diff --git a/include/net/ax25.h b/include/net/ax25.h
index 51060ef74590..5ae10dd2e32e 100644
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -342,8 +342,14 @@ struct ax25_protocol {
extern void ax25_register_pid(struct ax25_protocol *ap);
extern void ax25_protocol_release(unsigned int);
-extern int __must_check ax25_linkfail_register(void (*)(ax25_cb *, int));
-extern void ax25_linkfail_release(void (*)(ax25_cb *, int));
+
+struct ax25_linkfail {
+ struct hlist_node lf_node;
+ void (*func)(ax25_cb *, int);
+};
+
+extern void ax25_linkfail_register(struct ax25_linkfail *lf);
+extern void ax25_linkfail_release(struct ax25_linkfail *lf);
extern int __must_check ax25_listen_register(ax25_address *,
struct net_device *);
extern void ax25_listen_release(ax25_address *, struct net_device *);
diff --git a/net/ax25/ax25_iface.c b/net/ax25/ax25_iface.c
index 51e293420b7f..aff3e652c2d1 100644
--- a/net/ax25/ax25_iface.c
+++ b/net/ax25/ax25_iface.c
@@ -32,10 +32,7 @@
static struct ax25_protocol *protocol_list;
static DEFINE_RWLOCK(protocol_list_lock);
-static struct linkfail_struct {
- struct linkfail_struct *next;
- void (*func)(ax25_cb *, int);
-} *linkfail_list = NULL;
+static HLIST_HEAD(ax25_linkfail_list);
static DEFINE_SPINLOCK(linkfail_lock);
static struct listen_struct {
@@ -93,54 +90,19 @@ void ax25_protocol_release(unsigned int pid)
EXPORT_SYMBOL(ax25_protocol_release);
-int ax25_linkfail_register(void (*func)(ax25_cb *, int))
+void ax25_linkfail_register(struct ax25_linkfail *lf)
{
- struct linkfail_struct *linkfail;
-
- if ((linkfail = kmalloc(sizeof(*linkfail), GFP_ATOMIC)) == NULL)
- return 0;
-
- linkfail->func = func;
-
spin_lock_bh(&linkfail_lock);
- linkfail->next = linkfail_list;
- linkfail_list = linkfail;
+ hlist_add_head(&lf->lf_node, &ax25_linkfail_list);
spin_unlock_bh(&linkfail_lock);
-
- return 1;
}
EXPORT_SYMBOL(ax25_linkfail_register);
-void ax25_linkfail_release(void (*func)(ax25_cb *, int))
+void ax25_linkfail_release(struct ax25_linkfail *lf)
{
- struct linkfail_struct *s, *linkfail;
-
spin_lock_bh(&linkfail_lock);
- linkfail = linkfail_list;
- if (linkfail == NULL) {
- spin_unlock_bh(&linkfail_lock);
- return;
- }
-
- if (linkfail->func == func) {
- linkfail_list = linkfail->next;
- spin_unlock_bh(&linkfail_lock);
- kfree(linkfail);
- return;
- }
-
- while (linkfail != NULL && linkfail->next != NULL) {
- if (linkfail->next->func == func) {
- s = linkfail->next;
- linkfail->next = linkfail->next->next;
- spin_unlock_bh(&linkfail_lock);
- kfree(s);
- return;
- }
-
- linkfail = linkfail->next;
- }
+ hlist_del_init(&lf->lf_node);
spin_unlock_bh(&linkfail_lock);
}
@@ -237,11 +199,12 @@ int ax25_listen_mine(ax25_address *callsign, struct net_device *dev)
void ax25_link_failed(ax25_cb *ax25, int reason)
{
- struct linkfail_struct *linkfail;
+ struct ax25_linkfail *lf;
+ struct hlist_node *node;
spin_lock_bh(&linkfail_lock);
- for (linkfail = linkfail_list; linkfail != NULL; linkfail = linkfail->next)
- (linkfail->func)(ax25, reason);
+ hlist_for_each_entry(lf, node, &ax25_linkfail_list, lf_node)
+ lf->func(ax25, reason);
spin_unlock_bh(&linkfail_lock);
}
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index f4675bf3976c..43bbe2c9e49a 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1382,6 +1382,10 @@ static struct ax25_protocol nr_pid = {
.func = nr_route_frame
};
+static struct ax25_linkfail nr_linkfail_notifier = {
+ .func = nr_link_failed,
+};
+
static int __init nr_proto_init(void)
{
int i;
@@ -1430,7 +1434,7 @@ static int __init nr_proto_init(void)
register_netdevice_notifier(&nr_dev_notifier);
ax25_register_pid(&nr_pid);
- ax25_linkfail_register(nr_link_failed);
+ ax25_linkfail_register(&nr_linkfail_notifier);
#ifdef CONFIG_SYSCTL
nr_register_sysctl();
@@ -1479,7 +1483,7 @@ static void __exit nr_exit(void)
nr_unregister_sysctl();
#endif
- ax25_linkfail_release(nr_link_failed);
+ ax25_linkfail_release(&nr_linkfail_notifier);
ax25_protocol_release(AX25_P_NETROM);
unregister_netdevice_notifier(&nr_dev_notifier);
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 09f8a06bf806..9e279464c9d1 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1487,6 +1487,10 @@ static struct ax25_protocol rose_pid = {
.func = rose_route_frame
};
+static struct ax25_linkfail rose_linkfail_notifier = {
+ .func = rose_link_failed
+};
+
static int __init rose_proto_init(void)
{
int i;
@@ -1537,7 +1541,7 @@ static int __init rose_proto_init(void)
register_netdevice_notifier(&rose_dev_notifier);
ax25_register_pid(&rose_pid);
- ax25_linkfail_register(rose_link_failed);
+ ax25_linkfail_register(&rose_linkfail_notifier);
#ifdef CONFIG_SYSCTL
rose_register_sysctl();
@@ -1585,7 +1589,7 @@ static void __exit rose_exit(void)
rose_rt_free();
ax25_protocol_release(AX25_P_ROSE);
- ax25_linkfail_release(rose_link_failed);
+ ax25_linkfail_release(&rose_linkfail_notifier);
if (ax25cmp(&rose_callsign, &null_ax25_address) != 0)
ax25_listen_release(&rose_callsign, NULL);