Le 18/04/2021 à 22:03, Bart Van Assche a écrit :
On 4/17/21 12:16 AM, Christophe JAILLET wrote:
'kasprintf()' can replace a kmalloc/strcpy/strcat sequence.
It is less verbose and avoid the use of a magic number (64).
Anyway, the underlying 'alloc_workqueue()' would only keep the 24 first
chars (i.e. sizeof(struct workqueue_struct->name) = WQ_NAME_LEN).
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/health.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c
index 9ff163c5bcde..a5383e701b4b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
@@ -802,12 +802,10 @@ int mlx5_health_init(struct mlx5_core_dev *dev)
mlx5_fw_reporters_create(dev);
health = &dev->priv.health;
- name = kmalloc(64, GFP_KERNEL);
+ name = kasprintf(GFP_KERNEL, "mlx5_health%s", dev_name(dev->device));
if (!name)
goto out_err;
- strcpy(name, "mlx5_health");
- strcat(name, dev_name(dev->device));
health->wq = create_singlethread_workqueue(name);
kfree(name);
if (!health->wq)
Instead of modifying the mlx5 driver, please change the definition of
the create_singlethread_workqueue() such that it accept a format
specifier and a variable number of arguments.
Agreed. I've sent another patch serie which is more elegant.
Thanks for the feedback.
CJ
Thanks,
Bart.
