hash: fix ring size

[dpdk.git] / lib / librte_hash / rte_cuckoo_hash.c

diff --git a/lib/librte_hash/rte_cuckoo_hash.c b/lib/librte_hash/rte_cuckoo_hash.c
index 2e6429f0b504498978aec33ddcc5332c0a05a645..69fd663054e8b011ebf042c7bcf450fd62572665 100644 (file)
--- a/lib/librte_hash/rte_cuckoo_hash.c
+++ b/lib/librte_hash/rte_cuckoo_hash.c
@@ -160,7 +160,8 @@ rte_hash_create(const struct rte_hash_parameters *params)
                num_key_slots = params->entries + 1;
 
        snprintf(ring_name, sizeof(ring_name), "HT_%s", params->name);
-       r = rte_ring_create(ring_name, rte_align32pow2(num_key_slots),
+       /* Create ring (Dummy slot index is not enqueued) */
+       r = rte_ring_create(ring_name, rte_align32pow2(num_key_slots - 1),
                        params->socket_id, 0);
        if (r == NULL) {
                RTE_LOG(ERR, HASH, "memory allocation failed\n");