Re: [PATCH v2 01/24] input: Add ff-memless-next module

From: Oliver Neukum
Date: Wed Apr 23 2014 - 08:13:10 EST


On Tue, 2014-04-22 at 15:59 +0200, Michal Malà wrote:
> +/* Some devices might have a limit on how many uncombinable effects
> + * can be played at once */
> +static int mlnx_upload_conditional(struct mlnx_device *mlnxdev,
> + const struct ff_effect *effect)
> +{
> + struct mlnx_effect_command ecmd = {
> + .cmd = MLNX_UPLOAD_UNCOMB,
> + .u.uncomb.id = effect->id,
> + .u.uncomb.effect = effect
> + };
> + return mlnxdev->control_effect(mlnxdev->dev, mlnxdev->private,
> &ecmd);
> +}
> +

This mean you are building the structure on the stack

1. Are you sure nobody retains a reference?
2. That is needlessly inefficient

Regards
Oliver


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