diff options
| author | Aya Levin <ayal@nvidia.com> | 2021-05-25 15:35:25 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2021-06-01 18:30:19 -0700 |
| commit | d8ec92005f806dfa7524e9171eca707c0bb1267e (patch) | |
| tree | a95c03d6906e2e5513b899a64249e5f27a47b849 | |
| parent | b000372627ce9dbbe641dafbf40db0718276ab77 (diff) | |
| download | linux-d8ec92005f806dfa7524e9171eca707c0bb1267e.tar.bz2 | |
net/mlx5e: Fix incompatible casting
Device supports setting of a single fec mode at a time, enforce this
by bitmap_weight == 1. Input from fec command is in u32, avoid cast to
unsigned long and use bitmap_from_arr32 to populate bitmap safely.
Fixes: 4bd9d5070b92 ("net/mlx5e: Enforce setting of a single FEC mode")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index 8360289813f0..c4724742eef1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -1624,12 +1624,13 @@ static int mlx5e_set_fecparam(struct net_device *netdev, { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5_core_dev *mdev = priv->mdev; + unsigned long fec_bitmap; u16 fec_policy = 0; int mode; int err; - if (bitmap_weight((unsigned long *)&fecparam->fec, - ETHTOOL_FEC_LLRS_BIT + 1) > 1) + bitmap_from_arr32(&fec_bitmap, &fecparam->fec, sizeof(fecparam->fec) * BITS_PER_BYTE); + if (bitmap_weight(&fec_bitmap, ETHTOOL_FEC_LLRS_BIT + 1) > 1) return -EOPNOTSUPP; for (mode = 0; mode < ARRAY_SIZE(pplm_fec_2_ethtool); mode++) { |