X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_lpm%2Frte_lpm.c;h=38ab512a42c3c25875f9205a6a359db1bee32da2;hb=d6bba625cd5097199bde4a766a03e61bb2349778;hp=b78c487447749321e1b66a90a9ecfbacf9ed62ab;hpb=c381a8d554b70f7108ce7a87e0c7bc15e1c99c02;p=dpdk.git

diff --git a/lib/librte_lpm/rte_lpm.c b/lib/librte_lpm/rte_lpm.c
index b78c487447..38ab512a42 100644
--- a/lib/librte_lpm/rte_lpm.c
+++ b/lib/librte_lpm/rte_lpm.c
@@ -22,7 +22,6 @@
 #include <rte_rwlock.h>
 #include <rte_spinlock.h>
 #include <rte_tailq.h>
-#include <rte_function_versioning.h>
 
 #include "rte_lpm.h"
 
@@ -284,8 +283,12 @@ rule_add(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
 
 		for (; rule_index < last_rule; rule_index++) {
 
-			/* If rule already exists update its next_hop and return. */
+			/* If rule already exists update next hop and return. */
 			if (lpm->rules_tbl[rule_index].ip == ip_masked) {
+
+				if (lpm->rules_tbl[rule_index].next_hop
+						== next_hop)
+					return -EEXIST;
 				lpm->rules_tbl[rule_index].next_hop = next_hop;
 
 				return rule_index;
@@ -675,6 +678,12 @@ rte_lpm_add(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
 	/* Add the rule to the rule table. */
 	rule_index = rule_add(lpm, ip_masked, depth, next_hop);
 
+	/* Skip table entries update if The rule is the same as
+	 * the rule in the rules table.
+	 */
+	if (rule_index == -EEXIST)
+		return 0;
+
 	/* If the is no space available for new rule return error. */
 	if (rule_index < 0) {
 		return rule_index;