Re: [PATCH] wifi: rfkill: Correct parameter type for rfkill_set_hw_state_reason()

From: Jeff Johnson
Date: Fri Jul 26 2024 - 18:52:03 EST


On 7/15/2024 6:39 AM, Zijun Hu wrote:
> From: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
>
> Change type of parameter @reason to enum rfkill_hard_block_reasons for
> API rfkill_set_hw_state_reason() according to its comments.
>
> Signed-off-by: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
> ---
> include/linux/rfkill.h | 5 ++---
> net/rfkill/core.c | 7 +------
> 2 files changed, 3 insertions(+), 9 deletions(-)
>
> diff --git a/include/linux/rfkill.h b/include/linux/rfkill.h
> index 373003ace639..4f7558267541 100644
> --- a/include/linux/rfkill.h
> +++ b/include/linux/rfkill.h
> @@ -147,7 +147,7 @@ void rfkill_destroy(struct rfkill *rfkill);
> * Prefer to use rfkill_set_hw_state if you don't need any special reason.
> */
> bool rfkill_set_hw_state_reason(struct rfkill *rfkill,
> - bool blocked, unsigned long reason);
> + bool blocked, enum rfkill_hard_block_reasons reason);

function parameters should align on (

> /**
> * rfkill_set_hw_state - Set the internal rfkill hardware block state
> * @rfkill: pointer to the rfkill class to modify.
> @@ -279,8 +279,7 @@ static inline void rfkill_destroy(struct rfkill *rfkill)
> }
>
> static inline bool rfkill_set_hw_state_reason(struct rfkill *rfkill,
> - bool blocked,
> - unsigned long reason)
> + bool blocked, enum rfkill_hard_block_reasons reason)

function parameters should align on (

> {
> return blocked;
> }
> diff --git a/net/rfkill/core.c b/net/rfkill/core.c
> index 7a5367628c05..f8ed6431b2f5 100644
> --- a/net/rfkill/core.c
> +++ b/net/rfkill/core.c
> @@ -539,18 +539,13 @@ bool rfkill_get_global_sw_state(const enum rfkill_type type)
> #endif
>
> bool rfkill_set_hw_state_reason(struct rfkill *rfkill,
> - bool blocked, unsigned long reason)
> + bool blocked, enum rfkill_hard_block_reasons reason)

function parameters should align on (

> {
> unsigned long flags;
> bool ret, prev;
>
> BUG_ON(!rfkill);
>
> - if (WARN(reason & ~(RFKILL_HARD_BLOCK_SIGNAL |
> - RFKILL_HARD_BLOCK_NOT_OWNER),
> - "hw_state reason not supported: 0x%lx", reason))
> - return rfkill_blocked(rfkill);
> -

did you validate that all callers are actually passing a valid enum?
that is something you should describe in your commit since this is a change
beyond just changing the prototype

> spin_lock_irqsave(&rfkill->lock, flags);
> prev = !!(rfkill->hard_block_reasons & reason);
> if (blocked) {
>
> ---
> base-commit: 338a93cf4a18c2036b567e9f613367f7a52f2511
> change-id: 20240715-rfkill_fix-335afa2e88ca
>
> Best regards,