net/mlx5: fix clang compilation error

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: stable@dpdk.org
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Yongseok Koh <yskoh@mellanox.com>

diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index b240c16..81e9eb5 100644 (file)
--- 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 {