Re: [PATCH] Input: automatically set EV_ABS bit in input_set_abs_params

From: Jiri Kosina
Date: Fri Oct 10 2014 - 07:30:36 EST


On Wed, 8 Oct 2014, Dmitry Torokhov wrote:

> Let's automatically set EV_ABS bit in device's event type list when calling
> input_set_abs_params() so that drivers do not have to do it explicitly.
>
> These calls are never in a hot paths so we won't lose much time by setting
> the same bit several times.
>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>

Makes sense.

Acked-by: Jiri Kosina <jkosina@xxxxxxx>

Thanks.

> ---
> drivers/input/input.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/input/input.c b/drivers/input/input.c
> index 29ca0bb..d2e06cc 100644
> --- a/drivers/input/input.c
> +++ b/drivers/input/input.c
> @@ -498,7 +498,8 @@ void input_set_abs_params(struct input_dev *dev, unsigned int axis,
> absinfo->fuzz = fuzz;
> absinfo->flat = flat;
>
> - dev->absbit[BIT_WORD(axis)] |= BIT_MASK(axis);
> + __set_bit(EV_ABS, dev->evbit);
> + __set_bit(axis, dev->absbit);
> }
> EXPORT_SYMBOL(input_set_abs_params);

--
Jiri Kosina
SUSE Labs
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