diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c index 90b524c59f3c..6a0c6f965ad1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c @@ -148,9 +148,19 @@ mlx5_sf_dev_state_change_handler(struct notifier_block *nb, unsigned long event_ struct mlx5_sf_dev_table *table = container_of(nb, struct mlx5_sf_dev_table, nb); const struct mlx5_vhca_state_event *event = data; struct mlx5_sf_dev *sf_dev; + u16 max_functions; u16 sf_index; + u16 base_id; + + max_functions = mlx5_sf_max_functions(table->dev); + if (!max_functions) + return 0; + + base_id = MLX5_CAP_GEN(table->dev, sf_base_id); + if (event->function_id < base_id || event->function_id >= (base_id + max_functions)) + return 0; - sf_index = event->function_id - MLX5_CAP_GEN(table->dev, sf_base_id); + sf_index = event->function_id - base_id; sf_dev = xa_load(&table->devices, sf_index); switch (event->new_vhca_state) { case MLX5_VHCA_STATE_ALLOCATED: |