diff options
| author | Adham Faris <afaris@nvidia.com> | 2023-01-12 11:15:00 +0200 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-01-18 00:01:38 -0800 |
| commit | 6624bfeecf019de114f8100f1468d025d13b77a1 (patch) | |
| tree | dbeeb798707fc6f920ed34f3c28ee7bc689afa5f /drivers | |
| parent | 5aa56105930374928d567744595fd7ac525d0688 (diff) | |
| download | linux-6624bfeecf019de114f8100f1468d025d13b77a1.tar.bz2 | |
net/mlx5e: Remove redundant xsk pointer check in mlx5e_mpwrq_validate_xsk
This validation function is relevant only for XSK cases, hence it
assumes to be called only with xsk != NULL.
Thus checking for invalid xsk pointer is redundant and misleads static
code analyzers.
This commit removes redundant xsk pointer check.
This solves the following smatch warning:
drivers/net/ethernet/mellanox/mlx5/core/en/params.c:481
mlx5e_mpwrq_validate_xsk() error: we previously assumed 'xsk' could be
null (see line 478)
Fixes: 6470d2e7e8ed ("net/mlx5e: xsk: Use KSM for unaligned XSK")
Signed-off-by: Adham Faris <afaris@nvidia.com>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/params.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c index 585bdc8383ee..4ad19c981294 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c @@ -578,7 +578,6 @@ int mlx5e_mpwrq_validate_xsk(struct mlx5_core_dev *mdev, struct mlx5e_params *pa { enum mlx5e_mpwrq_umr_mode umr_mode = mlx5e_mpwrq_umr_mode(mdev, xsk); u8 page_shift = mlx5e_mpwrq_page_shift(mdev, xsk); - bool unaligned = xsk ? xsk->unaligned : false; u16 max_mtu_pkts; if (!mlx5e_check_fragmented_striding_rq_cap(mdev, page_shift, umr_mode)) @@ -591,7 +590,7 @@ int mlx5e_mpwrq_validate_xsk(struct mlx5_core_dev *mdev, struct mlx5e_params *pa * needed number of WQEs exceeds the maximum. */ max_mtu_pkts = min_t(u8, MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE, - mlx5e_mpwrq_max_log_rq_pkts(mdev, page_shift, unaligned)); + mlx5e_mpwrq_max_log_rq_pkts(mdev, page_shift, xsk->unaligned)); if (params->log_rq_mtu_frames > max_mtu_pkts) { mlx5_core_err(mdev, "Current RQ length %d is too big for XSK with given frame size %u\n", 1 << params->log_rq_mtu_frames, xsk->chunk_size); |