net/mlx5e: Prevent casting overflow

[cascardo/linux.git] / drivers / net / ethernet / mellanox / mlx5 / core / en_ethtool.c

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index d0cf8fa..98e1a4a 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -659,9 +659,10 @@ out:
 static void ptys2ethtool_supported_link(unsigned long *supported_modes,
                                        u32 eth_proto_cap)
 {
+       unsigned long proto_cap = eth_proto_cap;
        int proto;
 
-       for_each_set_bit(proto, (unsigned long *)&eth_proto_cap, MLX5E_LINK_MODES_NUMBER)
+       for_each_set_bit(proto, &proto_cap, MLX5E_LINK_MODES_NUMBER)
                bitmap_or(supported_modes, supported_modes,
                          ptys2ethtool_table[proto].supported,
                          __ETHTOOL_LINK_MODE_MASK_NBITS);
@@ -670,9 +671,10 @@ static void ptys2ethtool_supported_link(unsigned long *supported_modes,
 static void ptys2ethtool_adver_link(unsigned long *advertising_modes,
                                    u32 eth_proto_cap)
 {
+       unsigned long proto_cap = eth_proto_cap;
        int proto;
 
-       for_each_set_bit(proto, (unsigned long *)&eth_proto_cap, MLX5E_LINK_MODES_NUMBER)
+       for_each_set_bit(proto, &proto_cap, MLX5E_LINK_MODES_NUMBER)
                bitmap_or(advertising_modes, advertising_modes,
                          ptys2ethtool_table[proto].advertised,
                          __ETHTOOL_LINK_MODE_MASK_NBITS);