Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

[deliverable/linux.git] / net / batman-adv / bat_v_elp.c

diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c
index 3844e7efd0b0d4d7f61f0cdaee144f761c2499f2..df42eb1365a0122ce08d1fe7657492745f4957a8 100644 (file)
--- a/net/batman-adv/bat_v_elp.c
+++ b/net/batman-adv/bat_v_elp.c
@@ -376,6 +376,27 @@ void batadv_v_elp_iface_disable(struct batadv_hard_iface *hard_iface)
        hard_iface->bat_v.elp_skb = NULL;
 }
 
+/**
+ * batadv_v_elp_iface_activate - update the ELP buffer belonging to the given
+ *  hard-interface
+ * @primary_iface: the new primary interface
+ * @hard_iface: interface holding the to-be-updated buffer
+ */
+void batadv_v_elp_iface_activate(struct batadv_hard_iface *primary_iface,
+                                struct batadv_hard_iface *hard_iface)
+{
+       struct batadv_elp_packet *elp_packet;
+       struct sk_buff *skb;
+
+       if (!hard_iface->bat_v.elp_skb)
+               return;
+
+       skb = hard_iface->bat_v.elp_skb;
+       elp_packet = (struct batadv_elp_packet *)skb->data;
+       ether_addr_copy(elp_packet->orig,
+                       primary_iface->net_dev->dev_addr);
+}
+
 /**
  * batadv_v_elp_primary_iface_set - change internal data to reflect the new
  *  primary interface
@@ -384,8 +405,6 @@ void batadv_v_elp_iface_disable(struct batadv_hard_iface *hard_iface)
 void batadv_v_elp_primary_iface_set(struct batadv_hard_iface *primary_iface)
 {
        struct batadv_hard_iface *hard_iface;
-       struct batadv_elp_packet *elp_packet;
-       struct sk_buff *skb;
 
        /* update orig field of every elp iface belonging to this mesh */
        rcu_read_lock();
@@ -393,13 +412,7 @@ void batadv_v_elp_primary_iface_set(struct batadv_hard_iface *primary_iface)
                if (primary_iface->soft_iface != hard_iface->soft_iface)
                        continue;
 
-               if (!hard_iface->bat_v.elp_skb)
-                       continue;
-
-               skb = hard_iface->bat_v.elp_skb;
-               elp_packet = (struct batadv_elp_packet *)skb->data;
-               ether_addr_copy(elp_packet->orig,
-                               primary_iface->net_dev->dev_addr);
+               batadv_v_elp_iface_activate(primary_iface, hard_iface);
        }
        rcu_read_unlock();
 }