[dpdk-dev] [PATCH v3 16/30] net/mlx5: fix clang compilation error

[Nelio Laranjeiro <nelio.laranjeiro@6wind.com>]

drivers/net/mlx5/mlx5_rxq.c:606:6: error: comparison of constant 4
      with expression of type 'enum hash_rxq_flow_type' is always true
      [-Werror,-Wtautological-constant-out-of-range-compare]
                        i != (int)RTE_DIM((*priv->hash_rxqs)[0].special_flow);
                        ~ ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Clang expects to have an index going upto special_flow size which is
defined by MLX5_MAX_SPECIAL_FLOWS and value is 4.  Comparing to an
unrelated enum where index my be lower cause this compilation issue.

Fixes: 36351ea34b92 ("net/mlx: fix build with icc")
Cc: ferruh.yigit@intel.com
Cc: stable@dpdk.org

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Yongseok Koh <yskoh@mellanox.com>
---
 drivers/net/mlx5/mlx5_rxq.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index b240c16..81e9eb5 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -606,11 +606,9 @@ priv_allow_flow_type(struct priv *priv, enum hash_rxq_flow_type type)
 int
 priv_rehash_flows(struct priv *priv)
 {
-	enum hash_rxq_flow_type i;
+	size_t i;
 
-	for (i = HASH_RXQ_FLOW_TYPE_PROMISC;
-			i != RTE_DIM((*priv->hash_rxqs)[0].special_flow);
-			++i)
+	for (i = 0; i != RTE_DIM((*priv->hash_rxqs)[0].special_flow); ++i)
 		if (!priv_allow_flow_type(priv, i)) {
 			priv_special_flow_disable(priv, i);
 		} else {
-- 
2.1.4