[dpdk-dev] [PATCH v5 2/7] test/ring: fix wrong number of enq/deq elements

[Feifei Wang <feifei.wang2@arm.com>]

The ring capacity is (RING_SIZE - 1), thus only (RING_SIZE - 1) number of
elements can be enqueued into the ring.

Fixes: af75078fece3 ("first public release")
Cc: stable@dpdk.org

Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Phil Yang <phil.yang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
---
 app/test/test_ring.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/test/test_ring.c b/app/test/test_ring.c
index 0ae97d341..04bdc9b69 100644
--- a/app/test/test_ring.c
+++ b/app/test/test_ring.c
@@ -811,7 +811,7 @@ test_ring_basic_ex(void)
 		printf("%u ring entries are now free\n",
 			rte_ring_free_count(rp));
 
-		for (j = 0; j < RING_SIZE; j++) {
+		for (j = 0; j < RING_SIZE - 1; j++) {
 			test_ring_enqueue(rp, obj, esize[i], 1,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_SINGLE);
 		}
@@ -822,7 +822,7 @@ test_ring_basic_ex(void)
 			goto fail_test;
 		}
 
-		for (j = 0; j < RING_SIZE; j++) {
+		for (j = 0; j < RING_SIZE - 1; j++) {
 			test_ring_dequeue(rp, obj, esize[i], 1,
 				TEST_RING_THREAD_DEF | TEST_RING_ELEM_SINGLE);
 		}
-- 
2.17.1