Re: [PATCH 2/2] pwm: Clarify PWMF_* enums definition

From: Sam Protsenko
Date: Thu Nov 09 2023 - 12:17:35 EST


On Thu, Nov 9, 2023 at 4:48 AM Marek Szyprowski
<m.szyprowski@xxxxxxxxxxx> wrote:
>
> PWMF_* enums are defined as flag values (like 1 << n), but then in the
> code they are used as bit numbers via set/test/clear_bit() macros. Change
> their values to sequential numbers to clearly show that they are bit
> numbers, not the flag values.
>
> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> ---

Reviewed-by: Sam Protsenko <semen.protsenko@xxxxxxxxxx>

> include/linux/pwm.h | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/include/linux/pwm.h b/include/linux/pwm.h
> index e3b437587b32..95c895c63cf6 100644
> --- a/include/linux/pwm.h
> +++ b/include/linux/pwm.h
> @@ -40,9 +40,12 @@ struct pwm_args {
> enum pwm_polarity polarity;
> };
>
> -enum {
> - PWMF_REQUESTED = 1 << 0,
> - PWMF_EXPORTED = 1 << 1,
> +/**
> + * enum pwm_flags_bits - status bits for pwm->flags entry
> + */
> +enum pwm_flags_bits {
> + PWMF_REQUESTED = 0,
> + PWMF_EXPORTED = 1,
> };
>
> /*
> --
> 2.34.1
>