X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Fcommon%2Frte_random.c;h=57ec8fb2b3dd64caa27213ad98bb264f68af501c;hb=cfe3aeb170b2f6277e6f96173599da51eab0654f;hp=3d9b9b7d834ab064ad5d4b8f2e3a626bbcee9702;hpb=5f4ed3f058493552658e914815f58e784755a1b3;p=dpdk.git

diff --git a/lib/librte_eal/common/rte_random.c b/lib/librte_eal/common/rte_random.c
index 3d9b9b7d83..57ec8fb2b3 100644
--- a/lib/librte_eal/common/rte_random.c
+++ b/lib/librte_eal/common/rte_random.c
@@ -137,7 +137,7 @@ rte_rand(void)
 	return __rte_rand_lfsr258(state);
 }
 
-uint64_t __rte_experimental
+uint64_t
 rte_rand_max(uint64_t upper_bound)
 {
 	struct rte_rand_state *state;
@@ -189,14 +189,13 @@ __rte_random_initial_seed(void)
 		return ge_seed;
 #endif
 #ifdef RTE_MACHINE_CPUFLAG_RDSEED
-	unsigned int rdseed_rc;
-	unsigned long long rdseed_seed;
+	unsigned int rdseed_low;
+	unsigned int rdseed_high;
 
 	/* first fallback: rdseed instruction, if available */
-	rdseed_rc = _rdseed64_step(&rdseed_seed);
-
-	if (rdseed_rc == 1)
-		return (uint64_t)rdseed_seed;
+	if (_rdseed32_step(&rdseed_low) == 1 &&
+	    _rdseed32_step(&rdseed_high) == 1)
+		return (uint64_t)rdseed_low | ((uint64_t)rdseed_high << 32);
 #endif
 	/* second fallback: seed using rdtsc */
 	return rte_get_timer_cycles();