linux-kernel - Re: [PATCH] Improve MAR register definition and usage for rtl8723

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Message-ID: <2024073109-abridge-yapping-3db3@gregkh>
Date: Wed, 31 Jul 2024 08:16:58 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Manjae Cho <manjae.cho@...sung.com>
Cc: linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Improve MAR register definition and usage for rtl8723

On Wed, Jul 31, 2024 at 12:50:54AM +0900, Manjae Cho wrote:
> This patch improves the usage of the MAR register by updating the
> relevant
> macro definitions and ensuring consistent usage across the codebase.
> 
> Signed-off-by: Manjae Cho <manjae.cho@...sung.com>
> 
> ---
>  drivers/staging/rtl8723bs/hal/sdio_halinit.c    | 4 ++--
>  drivers/staging/rtl8723bs/include/hal_com_reg.h | 3 +++
>  2 files changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/staging/rtl8723bs/hal/sdio_halinit.c b/drivers/staging/rtl8723bs/hal/sdio_halinit.c
> index c9cd6578f7f8..9493562c1619 100644
> --- a/drivers/staging/rtl8723bs/hal/sdio_halinit.c
> +++ b/drivers/staging/rtl8723bs/hal/sdio_halinit.c
> @@ -380,8 +380,8 @@ static void _InitWMACSetting(struct adapter *padapter)
>  	rtw_write32(padapter, REG_RCR, pHalData->ReceiveConfig);
>  
>  	/*  Accept all multicast address */
> -	rtw_write32(padapter, REG_MAR, 0xFFFFFFFF);
> -	rtw_write32(padapter, REG_MAR + 4, 0xFFFFFFFF);
> +	rtw_write32(padapter, MAR0, 0xFFFFFFFF);
> +	rtw_write32(padapter, MAR4, 0xFFFFFFFF);
>  
>  	/*  Accept all data frames */
>  	value16 = 0xFFFF;
> diff --git a/drivers/staging/rtl8723bs/include/hal_com_reg.h b/drivers/staging/rtl8723bs/include/hal_com_reg.h
> index 9a02ae69d7a4..baf326d53a46 100644
> --- a/drivers/staging/rtl8723bs/include/hal_com_reg.h
> +++ b/drivers/staging/rtl8723bs/include/hal_com_reg.h
> @@ -151,6 +151,9 @@
>  #define REG_BSSID						0x0618
>  #define REG_MAR							0x0620
>  
> +#define MAR0						REG_MAR		/* Multicast Address Register, Offset 0x0620-0x0623 */

Why redefine this value again?  What is wrong with using it as
"REG_MAR"?  Is this fixing anything or making anything more consistent
somewhere?  It's only used in one place that I can see.

thanks,

greg k-h