Merge tag 'omap-for-v3.16/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel...

[karo-tx-linux.git] / net / openvswitch / flow_table.c

diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
index 574c3abc9b307ef6609f8f8dc09ade4b3253b814..cf2d853646f05dc61a1c8f9093782196860ab9bc 100644 (file)
--- a/net/openvswitch/flow_table.c
+++ b/net/openvswitch/flow_table.c
@@ -456,6 +456,22 @@ struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *tbl,
        return ovs_flow_tbl_lookup_stats(tbl, key, &n_mask_hit);
 }
 
+struct sw_flow *ovs_flow_tbl_lookup_exact(struct flow_table *tbl,
+                                         struct sw_flow_match *match)
+{
+       struct table_instance *ti = rcu_dereference_ovsl(tbl->ti);
+       struct sw_flow_mask *mask;
+       struct sw_flow *flow;
+
+       /* Always called under ovs-mutex. */
+       list_for_each_entry(mask, &tbl->mask_list, list) {
+               flow = masked_flow_lookup(ti, match->key, mask);
+               if (flow && ovs_flow_cmp_unmasked_key(flow, match))  /* Found */
+                       return flow;
+       }
+       return NULL;
+}
+
 int ovs_flow_tbl_num_masks(const struct flow_table *table)
 {
        struct sw_flow_mask *mask;