flow: New function flow_wildcards_is_exact().

[cascardo/ovs.git] / lib / flow.c

diff --git a/lib/flow.c b/lib/flow.c
index 0b6541f..3ac3530 100644 (file)
--- a/lib/flow.c
+++ b/lib/flow.c
@@ -420,6 +420,14 @@ flow_wildcards_init_exact(struct flow_wildcards *wc)
     memset(wc->reg_masks, 0xff, sizeof wc->reg_masks);
 }
 
+/* Returns true if 'wc' is exact-match, false if 'wc' wildcards any bits or
+ * fields. */
+bool
+flow_wildcards_is_exact(const struct flow_wildcards *wc)
+{
+    return !wc->wildcards;
+}
+
 static inline uint32_t
 combine_nw_bits(uint32_t wb1, uint32_t wb2, int shift)
 {