linux-kernel - Re: [PATCH] staging: r8188eu: replace custom macros with is_broadcast_ether

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Date:   Thu, 5 Aug 2021 18:47:26 -0500
From:   Larry Finger <Larry.Finger@...inger.net>
To:     Michael Straube <straube.linux@...il.com>,
        gregkh@...uxfoundation.org
Cc:     phil@...lpotter.co.uk, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: r8188eu: replace custom macros with
 is_broadcast_ether_addr

On 8/5/21 3:50 PM, Michael Straube wrote:
> Replace usage of custom macros with is_broadcast_ether_addr. All buffers
> are properly aligned. Remove the now unsued macros MacAddr_isBcst and
> IS_MAC_ADDRESS_BROADCAST.
> 
> Signed-off-by: Michael Straube <straube.linux@...il.com>
> ---
>   drivers/staging/r8188eu/core/rtw_ioctl_set.c | 13 +++----------
>   drivers/staging/r8188eu/core/rtw_recv.c      |  2 +-
>   drivers/staging/r8188eu/include/wifi.h       |  7 -------
>   3 files changed, 4 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/staging/r8188eu/core/rtw_ioctl_set.c b/drivers/staging/r8188eu/core/rtw_ioctl_set.c
> index 3e2add5409cc..c354f720310c 100644
> --- a/drivers/staging/r8188eu/core/rtw_ioctl_set.c
> +++ b/drivers/staging/r8188eu/core/rtw_ioctl_set.c
> @@ -13,13 +13,6 @@
>   
>   extern void indicate_wx_scan_complete_event(struct adapter *padapter);
>   
> -#define IS_MAC_ADDRESS_BROADCAST(addr) \
> -(\
> -	((addr[0] == 0xff) && (addr[1] == 0xff) && \
> -		(addr[2] == 0xff) && (addr[3] == 0xff) && \
> -		(addr[4] == 0xff) && (addr[5] == 0xff))  ? true : false \
> -)
> -
>   u8 rtw_validate_ssid(struct ndis_802_11_ssid *ssid)
>   {
>   	u8	 i;
> @@ -656,8 +649,8 @@ u8 rtw_set_802_11_add_key(struct adapter *padapter, struct ndis_802_11_key *key)
>   		}
>   
>   		/*  check BSSID */
> -		if (IS_MAC_ADDRESS_BROADCAST(key->BSSID) == true) {
> -			RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_, ("MacAddr_isBcst(key->BSSID)\n"));
> +		if (is_broadcast_ether_addr(key->BSSID)) {
> +			RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_, ("is_broadcast_ether_addr(key->BSSID)\n"));
>   			ret = false;
>   			goto exit;
>   		}
> @@ -744,7 +737,7 @@ u8 rtw_set_802_11_add_key(struct adapter *padapter, struct ndis_802_11_key *key)
>   				 padapter->securitypriv.dot118021XGrpPrivacy, key->KeyLength));
>   		}
>   
> -		if ((check_fwstate(&padapter->mlmepriv, WIFI_ADHOC_STATE) == true) && (IS_MAC_ADDRESS_BROADCAST(key->BSSID) == false)) {
> +		if (check_fwstate(&padapter->mlmepriv, WIFI_ADHOC_STATE) && !is_broadcast_ether_addr(key->BSSID)) {
>   			RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_,
>   				 (" IBSS but BSSID is not Broadcast Address.\n"));
>   			ret = _FAIL;
> diff --git a/drivers/staging/r8188eu/core/rtw_recv.c b/drivers/staging/r8188eu/core/rtw_recv.c
> index aef32f029537..afab951d87fd 100644
> --- a/drivers/staging/r8188eu/core/rtw_recv.c
> +++ b/drivers/staging/r8188eu/core/rtw_recv.c
> @@ -694,7 +694,7 @@ static void count_rx_stats(struct adapter *padapter, struct recv_frame *prframe,
>   
>   	padapter->mlmepriv.LinkDetectInfo.NumRxOkInPeriod++;
>   
> -	if ((!MacAddr_isBcst(pattrib->dst)) && (!IS_MCAST(pattrib->dst)))
> +	if (!is_broadcast_ether_addr(pattrib->dst) && !IS_MCAST(pattrib->dst))
>   		padapter->mlmepriv.LinkDetectInfo.NumRxUnicastOkInPeriod++;
>   
>   	if (sta)
> diff --git a/drivers/staging/r8188eu/include/wifi.h b/drivers/staging/r8188eu/include/wifi.h
> index 2c56d1d70d03..65fc677bf4eb 100644
> --- a/drivers/staging/r8188eu/include/wifi.h
> +++ b/drivers/staging/r8188eu/include/wifi.h
> @@ -368,13 +368,6 @@ enum WIFI_REG_DOMAIN {
>   
>   #define GetAddr4Ptr(pbuf)	((unsigned char *)((size_t)(pbuf) + 24))
>   
> -#define MacAddr_isBcst(addr) \
> -	( \
> -	((addr[0] == 0xff) && (addr[1] == 0xff) && \
> -	(addr[2] == 0xff) && (addr[3] == 0xff) && \
> -	(addr[4] == 0xff) && (addr[5] == 0xff))  ? true : false \
> -)
> -
>   static inline int IS_MCAST(unsigned char *da)
>   {
>   	if ((*da) & 0x01)

Acked-by: Larry Finger <Larry.Finger@...inger,net>