test/ring: fix build for O1 optimization

When DPDK is compiled with gcc < 9 with the optimization level set to 1
gcc sees zcd in test_ring.h as possibly being uninitialised. To correct
this error if statements from _st_ring_dequeue_bulk and
_st_ring_enqueue_bulk were corrected within test_ring_mt_peek_stress_zc.c

Fixes: f72299fd157d ("test/ring: add stress tests for zero copy API")
Signed-off-by: Conor Walsh <conor.walsh@intel.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>

diff --git a/app/test/test_ring_mt_peek_stress_zc.c b/app/test/test_ring_mt_peek_stress_zc.c
index 7e0bd511a7b5c67b985692a7af69d17050cfafb7..85f0262ba0959eae67af2b365ab2d78e60b7df39 100644 (file)
--- a/app/test/test_ring_mt_peek_stress_zc.c
+++ b/app/test/test_ring_mt_peek_stress_zc.c
@@ -14,8 +14,7 @@ _st_ring_dequeue_bulk(struct rte_ring *r, void **obj, uint32_t n,
        struct rte_ring_zc_data zcd;
 
        m = rte_ring_dequeue_zc_bulk_start(r, n, &zcd, avail);
-       n = (m == n) ? n : 0;
-       if (n != 0) {
+       if (m != 0) {
                /* Copy the data from the ring */
                test_ring_copy_from(&zcd, obj, -1, n);
                rte_ring_dequeue_zc_finish(r, n);
@@ -32,8 +31,7 @@ _st_ring_enqueue_bulk(struct rte_ring *r, void * const *obj, uint32_t n,
        struct rte_ring_zc_data zcd;
 
        m = rte_ring_enqueue_zc_bulk_start(r, n, &zcd, free);
-       n = (m == n) ? n : 0;
-       if (n != 0) {
+       if (m != 0) {
                /* Copy the data from the ring */
                test_ring_copy_to(&zcd, obj, -1, n);
                rte_ring_enqueue_zc_finish(r, n);