linux-kernel - Re: [PATCH v2 1/2] staging: r8188eu: replace LE_BITS_TO

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Date:   Mon, 13 Jun 2022 17:30:24 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Nam Cao <namcaov@...il.com>
Cc:     gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        linux-staging@...ts.linux.dev, phil@...lpotter.co.uk
Subject: Re: [PATCH v2 1/2] staging: r8188eu: replace LE_BITS_TO_1BYTE with
 clearer codes

On Sun, Jun 12, 2022 at 10:11:43AM +0200, Nam Cao wrote:
> The statement LE_BITS_TO_1BYTE(__paddr + n, 0, 8) is not obvious on
> what it is doing, while in truth it is simply reading one byte.
> Replace these with clearer codes.
> 
> Signed-off-by: Nam Cao <namcaov@...il.com>
> ---
>  drivers/staging/r8188eu/include/Hal8188ERateAdaptive.h | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/staging/r8188eu/include/Hal8188ERateAdaptive.h b/drivers/staging/r8188eu/include/Hal8188ERateAdaptive.h
> index 20d73ca781e8..79e4210c6b65 100644
> --- a/drivers/staging/r8188eu/include/Hal8188ERateAdaptive.h
> +++ b/drivers/staging/r8188eu/include/Hal8188ERateAdaptive.h
> @@ -26,15 +26,15 @@
>  #define GET_TX_REPORT_TYPE1_RERTY_0(__paddr)			\
>  	le16_get_bits(*(__le16 *)__paddr, GENMASK(15, 0))
>  #define GET_TX_REPORT_TYPE1_RERTY_1(__paddr)			\
> -	LE_BITS_TO_1BYTE(__paddr + 2, 0, 8)
> +	((u8 *)__paddr)[2]

Instead of doing this, I would prefer to just get rid of
GET_TX_REPORT_TYPE1_RERTY_[1234].

regards,
dan carpenter