#undef DEBUG_LINK
-static struct hdlc_proto *first_proto = NULL;
-
+static struct hdlc_proto *first_proto;
static int hdlc_change_mtu(struct net_device *dev, int new_mtu)
{
{
struct hdlc_device *hdlc = dev_to_hdlc(dev);
- if (dev->nd_net != &init_net) {
+ if (dev_net(dev) != &init_net) {
kfree_skb(skb);
return 0;
}
unsigned long flags;
int on;
- if (dev->nd_net != &init_net)
+ if (dev_net(dev) != &init_net)
return NOTIFY_DONE;
if (dev->get_stats != hdlc_get_stats)
void register_hdlc_protocol(struct hdlc_proto *proto)
{
+ rtnl_lock();
proto->next = first_proto;
first_proto = proto;
+ rtnl_unlock();
}
void unregister_hdlc_protocol(struct hdlc_proto *proto)
{
- struct hdlc_proto **p = &first_proto;
- while (*p) {
- if (*p == proto) {
- *p = proto->next;
- return;
- }
+ struct hdlc_proto **p;
+
+ rtnl_lock();
+ p = &first_proto;
+ while (*p != proto) {
+ BUG_ON(!*p);
p = &((*p)->next);
}
+ *p = proto->next;
+ rtnl_unlock();
}