X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_hash%2Frte_thash.h;h=4fa5e07a5e104824e8755956b9fb8a5a5788e7f8;hb=b84ad8518850c6bbd346ce00b0577fc8c3725aa9;hp=2fffd61dc1010df78152674a387c138447abadac;hpb=4f4cd8717e48177a01e806cfbb9a86ed13ac1fbe;p=dpdk.git

diff --git a/lib/librte_hash/rte_thash.h b/lib/librte_hash/rte_thash.h
index 2fffd61dc1..4fa5e07a5e 100644
--- a/lib/librte_hash/rte_thash.h
+++ b/lib/librte_hash/rte_thash.h
@@ -207,15 +207,14 @@ static inline uint32_t
 rte_softrss(uint32_t *input_tuple, uint32_t input_len,
 		const uint8_t *rss_key)
 {
-	uint32_t i, j, ret = 0;
+	uint32_t i, j, map, ret = 0;
 
 	for (j = 0; j < input_len; j++) {
-		for (i = 0; i < 32; i++) {
-			if (input_tuple[j] & (1 << (31 - i))) {
-				ret ^= rte_cpu_to_be_32(((const uint32_t *)rss_key)[j]) << i |
+		for (map = input_tuple[j]; map;	map &= (map - 1)) {
+			i = rte_bsf32(map);
+			ret ^= rte_cpu_to_be_32(((const uint32_t *)rss_key)[j]) << (31 - i) |
 					(uint32_t)((uint64_t)(rte_cpu_to_be_32(((const uint32_t *)rss_key)[j + 1])) >>
-					(32 - i));
-			}
+					(i + 1));
 		}
 	}
 	return ret;
@@ -238,14 +237,13 @@ static inline uint32_t
 rte_softrss_be(uint32_t *input_tuple, uint32_t input_len,
 		const uint8_t *rss_key)
 {
-	uint32_t i, j, ret = 0;
+	uint32_t i, j, map, ret = 0;
 
 	for (j = 0; j < input_len; j++) {
-		for (i = 0; i < 32; i++) {
-			if (input_tuple[j] & (1 << (31 - i))) {
-				ret ^= ((const uint32_t *)rss_key)[j] << i |
-					(uint32_t)((uint64_t)(((const uint32_t *)rss_key)[j + 1]) >> (32 - i));
-			}
+		for (map = input_tuple[j]; map;	map &= (map - 1)) {
+			i = rte_bsf32(map);
+			ret ^= ((const uint32_t *)rss_key)[j] << (31 - i) |
+				(uint32_t)((uint64_t)(((const uint32_t *)rss_key)[j + 1]) >> (i + 1));
 		}
 	}
 	return ret;