netfilter: conntrack: de-inline nf_conntrack_eventmask_report

[cascardo/linux.git] / include / net / netfilter / nf_conntrack_ecache.h

diff --git a/include/net/netfilter/nf_conntrack_ecache.h b/include/net/netfilter/nf_conntrack_ecache.h
index 57c8803..019a5b8 100644 (file)
--- a/include/net/netfilter/nf_conntrack_ecache.h
+++ b/include/net/netfilter/nf_conntrack_ecache.h
@@ -73,6 +73,8 @@ void nf_conntrack_unregister_notifier(struct net *net,
                                      struct nf_ct_event_notifier *nb);
 
 void nf_ct_deliver_cached_events(struct nf_conn *ct);
+int nf_conntrack_eventmask_report(unsigned int eventmask, struct nf_conn *ct,
+                                 u32 portid, int report);
 
 static inline void
 nf_conntrack_event_cache(enum ip_conntrack_events event, struct nf_conn *ct)
@@ -90,70 +92,26 @@ nf_conntrack_event_cache(enum ip_conntrack_events event, struct nf_conn *ct)
        set_bit(event, &e->cache);
 }
 
-static inline int
-nf_conntrack_eventmask_report(unsigned int eventmask,
-                             struct nf_conn *ct,
-                             u32 portid,
-                             int report)
-{
-       int ret = 0;
-       struct net *net = nf_ct_net(ct);
-       struct nf_ct_event_notifier *notify;
-       struct nf_conntrack_ecache *e;
-
-       rcu_read_lock();
-       notify = rcu_dereference(net->ct.nf_conntrack_event_cb);
-       if (notify == NULL)
-               goto out_unlock;
-
-       e = nf_ct_ecache_find(ct);
-       if (e == NULL)
-               goto out_unlock;
-
-       if (nf_ct_is_confirmed(ct) && !nf_ct_is_dying(ct)) {
-               struct nf_ct_event item = {
-                       .ct     = ct,
-                       .portid = e->portid ? e->portid : portid,
-                       .report = report
-               };
-               /* This is a resent of a destroy event? If so, skip missed */
-               unsigned long missed = e->portid ? 0 : e->missed;
-
-               if (!((eventmask | missed) & e->ctmask))
-                       goto out_unlock;
-
-               ret = notify->fcn(eventmask | missed, &item);
-               if (unlikely(ret < 0 || missed)) {
-                       spin_lock_bh(&ct->lock);
-                       if (ret < 0) {
-                               /* This is a destroy event that has been
-                                * triggered by a process, we store the PORTID
-                                * to include it in the retransmission. */
-                               if (eventmask & (1 << IPCT_DESTROY) &&
-                                   e->portid == 0 && portid != 0)
-                                       e->portid = portid;
-                               else
-                                       e->missed |= eventmask;
-                       } else
-                               e->missed &= ~missed;
-                       spin_unlock_bh(&ct->lock);
-               }
-       }
-out_unlock:
-       rcu_read_unlock();
-       return ret;
-}
-
 static inline int
 nf_conntrack_event_report(enum ip_conntrack_events event, struct nf_conn *ct,
                          u32 portid, int report)
 {
+       const struct net *net = nf_ct_net(ct);
+
+       if (!rcu_access_pointer(net->ct.nf_conntrack_event_cb))
+               return 0;
+
        return nf_conntrack_eventmask_report(1 << event, ct, portid, report);
 }
 
 static inline int
 nf_conntrack_event(enum ip_conntrack_events event, struct nf_conn *ct)
 {
+       const struct net *net = nf_ct_net(ct);
+
+       if (!rcu_access_pointer(net->ct.nf_conntrack_event_cb))
+               return 0;
+
        return nf_conntrack_eventmask_report(1 << event, ct, 0, 0);
 }