net/mlx4_en: Fix UP limit in ieee_ets->prio_tc

User priority limit has to be less than MLX4_EN_NUM_UP.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c b/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c
index b4881b6861590c16c55644fd2752abfcf569ad8e..c95ca252187c333719fe4141225cea020909c723 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c
@@ -62,7 +62,7 @@ static int mlx4_en_ets_validate(struct mlx4_en_priv *priv, struct ieee_ets *ets)
        int has_ets_tc = 0;
 
        for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
-               if (ets->prio_tc[i] > MLX4_EN_NUM_UP) {
+               if (ets->prio_tc[i] >= MLX4_EN_NUM_UP) {
                        en_err(priv, "Bad priority in UP <=> TC mapping. TC: %d, UP: %d\n",
                                        i, ets->prio_tc[i]);
                        return -EINVAL;