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| author | Nathan Chancellor <nathan@kernel.org> | 2021-06-18 03:03:59 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2021-06-23 01:24:20 +0300 |
| commit | d4472a4b8c61a76a1fdcca8a03d6470d7565d87c (patch) | |
| tree | a9d0e1a7a0f11b726cae742a7656cf7945227471 /drivers/net/ethernet/mellanox/mlx5/core/eq.c | |
| parent | 9201ab5f55223760ce7e8890815b1beaf41e2e7a (diff) | |
| download | linux-d4472a4b8c61a76a1fdcca8a03d6470d7565d87c.tar.xz | |
net/mlx5: Use cpumask_available() in mlx5_eq_create_generic()
When CONFIG_CPUMASK_OFFSTACK is unset, cpumask_var_t is not a pointer
but a single element array, meaning its address in a structure cannot be
NULL as long as it is not the first element, which it is not. This
results in a clang warning:
drivers/net/ethernet/mellanox/mlx5/core/eq.c:715:14: warning: address of
array 'param->affinity' will always evaluate to 'true'
[-Wpointer-bool-conversion]
if (!param->affinity)
~~~~~~~~^~~~~~~~
1 warning generated.
The helper cpumask_available was added in commit f7e30f01a9e2 ("cpumask:
Add helper cpumask_available()") to handle situations like this so use
it to keep the meaning of the code the same while resolving the warning.
Fixes: e4e3f24b822f ("net/mlx5: Provide cpumask at EQ creation phase")
Link: https://github.com/ClangBuiltLinux/linux/issues/1400
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/eq.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c index c7efd177da1f..6e074cc457de 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c @@ -712,7 +712,7 @@ mlx5_eq_create_generic(struct mlx5_core_dev *dev, struct mlx5_eq *eq = kvzalloc(sizeof(*eq), GFP_KERNEL); int err; - if (!param->affinity) + if (!cpumask_available(param->affinity)) return ERR_PTR(-EINVAL); if (!eq) |