test/common: fix log2 check

[dpdk.git] / app / test / test_common.c

diff --git a/app/test/test_common.c b/app/test/test_common.c
index 2b856f8..12bd1ca 100644 (file)
--- a/app/test/test_common.c
+++ b/app/test/test_common.c
@@ -216,7 +216,19 @@ test_log2(void)
        const uint32_t max = 0x10000;
        const uint32_t step = 1;
 
-       for (i = 0; i < max; i = i + step) {
+       compare = rte_log2_u32(0);
+       if (compare != 0) {
+               printf("Wrong rte_log2_u32(0) val %x, expected 0\n", compare);
+               return TEST_FAILED;
+       }
+
+       compare = rte_log2_u64(0);
+       if (compare != 0) {
+               printf("Wrong rte_log2_u64(0) val %x, expected 0\n", compare);
+               return TEST_FAILED;
+       }
+
+       for (i = 1; i < max; i = i + step) {
                uint64_t i64;
 
                /* extend range for 64-bit */