openvswitch: Use flow hash during flow lookup operation.

Flow->hash can be used to detect hash collisions and avoid flow key
compare in flow lookup.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
index 536b4d2a42e2..e42542706087 100644
--- a/net/openvswitch/flow_table.c
+++ b/net/openvswitch/flow_table.c
@@ -421,7 +421,7 @@ static struct sw_flow *masked_flow_lookup(struct table_instance *ti,
         hash = flow_hash(&masked_key, key_start, key_end);
         head = find_bucket(ti, hash);
         hlist_for_each_entry_rcu(flow, head, hash_node[ti->node_ver]) {
-                if (flow->mask == mask &&
+                if (flow->mask == mask && flow->hash == hash &&
                     flow_cmp_masked_key(flow, &masked_key,
                                           key_start, key_end))
                         return flow;