bridge: Add br_multicast_start_querier

This patch adds the helper br_multicast_start_querier so that
the code which starts the queriers in br_multicast_toggle can
be reused elsewhere.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 16 insertions, 9 deletions

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 020e463f2225..ecabf210d0d2 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1689,9 +1689,23 @@ unlock:
         return err;
 }
 
-int br_multicast_toggle(struct net_bridge *br, unsigned long val)
+static void br_multicast_start_querier(struct net_bridge *br)
 {
         struct net_bridge_port *port;
+
+        br_multicast_open(br);
+
+        list_for_each_entry(port, &br->port_list, list) {
+                if (port->state == BR_STATE_DISABLED ||
+                    port->state == BR_STATE_BLOCKING)
+                        continue;
+
+                __br_multicast_enable_port(port);
+        }
+}
+
+int br_multicast_toggle(struct net_bridge *br, unsigned long val)
+{
         int err = 0;
         struct net_bridge_mdb_htable *mdb;
 
@@ -1721,14 +1735,7 @@ rollback:
                         goto rollback;
         }
 
-        br_multicast_open(br);
-        list_for_each_entry(port, &br->port_list, list) {
-                if (port->state == BR_STATE_DISABLED ||
-                    port->state == BR_STATE_BLOCKING)
-                        continue;
-
-                __br_multicast_enable_port(port);
-        }
+        br_multicast_start_querier(br);
 
 unlock:
         spin_unlock_bh(&br->multicast_lock);