[dpdk-dev] [PATCH v2 2/2] net/mlx4: avoid constant recreations in functions

[Ophir Munk <ophirmu@mellanox.com>]

Functions mlx4_ibv_to_dpdk_rss_types() and mlx4_conv_rss_types()
contain constant arrays variables which are recreated with every call
to the functions.
By changing the arrays definitions from "const" to "static const"
these recreations can be saved.

Signed-off-by: Ophir Munk <ophirmu@mellanox.com>
---
 drivers/net/mlx4/mlx4_flow.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/mlx4/mlx4_flow.c b/drivers/net/mlx4/mlx4_flow.c
index 41dac16..47d0403 100644
--- a/drivers/net/mlx4/mlx4_flow.c
+++ b/drivers/net/mlx4/mlx4_flow.c
@@ -91,7 +91,7 @@ uint64_t
 mlx4_conv_rss_types(struct priv *priv, uint64_t types)
 {
 	enum { IPV4, IPV6, TCP, UDP, };
-	const uint64_t in[] = {
+	static const uint64_t in[] = {
 		[IPV4] = (ETH_RSS_IPV4 |
 			  ETH_RSS_FRAG_IPV4 |
 			  ETH_RSS_NONFRAG_IPV4_TCP |
@@ -112,7 +112,7 @@ mlx4_conv_rss_types(struct priv *priv, uint64_t types)
 			 ETH_RSS_NONFRAG_IPV6_UDP |
 			 ETH_RSS_IPV6_UDP_EX),
 	};
-	const uint64_t out[RTE_DIM(in)] = {
+	static const uint64_t out[RTE_DIM(in)] = {
 		[IPV4] = IBV_RX_HASH_SRC_IPV4 | IBV_RX_HASH_DST_IPV4,
 		[IPV6] = IBV_RX_HASH_SRC_IPV6 | IBV_RX_HASH_DST_IPV6,
 		[TCP] = IBV_RX_HASH_SRC_PORT_TCP | IBV_RX_HASH_DST_PORT_TCP,
@@ -152,13 +152,13 @@ uint64_t
 mlx4_ibv_to_dpdk_rss_types(uint64_t types)
 {
 	enum { IPV4, IPV6, TCP, UDP, };
-	const uint64_t in[] = {
+	static const uint64_t in[] = {
 		[IPV4] = IBV_RX_HASH_SRC_IPV4 | IBV_RX_HASH_DST_IPV4,
 		[IPV6] = IBV_RX_HASH_SRC_IPV6 | IBV_RX_HASH_DST_IPV6,
 		[TCP] = IBV_RX_HASH_SRC_PORT_TCP | IBV_RX_HASH_DST_PORT_TCP,
 		[UDP] = IBV_RX_HASH_SRC_PORT_UDP | IBV_RX_HASH_DST_PORT_UDP,
 	};
-	const uint64_t out[RTE_DIM(in)] = {
+	static const uint64_t out[RTE_DIM(in)] = {
 		[IPV4] = (ETH_RSS_IPV4 |
 			  ETH_RSS_FRAG_IPV4 |
 			  ETH_RSS_NONFRAG_IPV4_OTHER),
-- 
2.7.4