From: Saeed Mahameed <sae...@mellanox.com>
Date: Tue, 31 Jan 2017 22:58:36 +0200
> @@ -487,11 +487,11 @@ static int __parse_cls_flower(struct mlx5e_priv *priv,
> MLX5_SET(fte_match_set_lyr_2_4, headers_c, cvlan_tag,
> 1);
> MLX5_SET(fte_match_set_lyr_2_4, headers_v, cvlan_tag,
> 1);
>
> - MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_vid,
> mask->vlan_id);
> - MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid,
> key->vlan_id);
> + MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_vid,
> (u16)mask->vlan_id);
> + MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid,
> (u16)key->vlan_id);
...
> @@ -67,10 +67,11 @@
>
> /* insert a value to a struct */
> #define MLX5_SET(typ, p, fld, v) do { \
> + typeof(v) _v = v; \
> BUILD_BUG_ON(__mlx5_st_sz_bits(typ) % 32); \
> *((__be32 *)(p) + __mlx5_dw_off(typ, fld)) = \
> cpu_to_be32((be32_to_cpu(*((__be32 *)(p) + __mlx5_dw_off(typ, fld))) & \
> - (~__mlx5_dw_mask(typ, fld))) | (((v) & __mlx5_mask(typ,
> fld)) \
> + (~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ,
> fld)) \
> << __mlx5_dw_bit_off(typ, fld))); \
> } while (0)
I have to agree with others that this is really crummy.
You're propagating values into a u32 field, which you are explicitly
performing 32-bit endianness conversions upon.
Just use "u32" for a local variable and get rid of all of these casts.
