staging: rtl8723bs: use is_broadcast_ether_addr() instead of memcmp()

Use is_broadcast_ether_addr() instead of memcmp to check
if the ethernet address is broadcast address.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20230804083841.1321554-2-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

3 files changed, 5 insertions, 10 deletions

diff --git a/drivers/staging/rtl8723bs/core/rtw_ap.c b/drivers/staging/rtl8723bs/core/rtw_ap.c
index d30d6e6bcd07..e4063713fecc 100644
--- a/drivers/staging/rtl8723bs/core/rtw_ap.c
+++ b/drivers/staging/rtl8723bs/core/rtw_ap.c
@@ -1238,7 +1238,6 @@ void rtw_acl_remove_sta(struct adapter *padapter, u8 *addr)
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	struct wlan_acl_pool *pacl_list = &pstapriv->acl_list;
 	struct __queue	*pacl_node_q = &pacl_list->acl_node_q;
-	u8 baddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };	/* Baddr is used for clearing acl_list */
 
 	spin_lock_bh(&(pacl_node_q->lock));
 
@@ -1248,7 +1247,7 @@ void rtw_acl_remove_sta(struct adapter *padapter, u8 *addr)
 
 		if (
 			!memcmp(paclnode->addr, addr, ETH_ALEN) ||
-			!memcmp(baddr, addr, ETH_ALEN)
+			is_broadcast_ether_addr(addr)
 		) {
 			if (paclnode->valid) {
 				paclnode->valid = false;
diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
index 1148c9829890..985683767a40 100644
--- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
@@ -421,13 +421,12 @@ void free_mlme_ext_priv(struct mlme_ext_priv *pmlmeext)
 
 static void _mgt_dispatcher(struct adapter *padapter, struct mlme_handler *ptable, union recv_frame *precv_frame)
 {
-	u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 	u8 *pframe = precv_frame->u.hdr.rx_data;
 
 	if (ptable->func) {
 		/* receive the frames that ra(a1) is my address or ra(a1) is bc address. */
 		if (memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN) &&
-		    memcmp(GetAddr1Ptr(pframe), bc_addr, ETH_ALEN))
+		    !is_broadcast_ether_addr(GetAddr1Ptr(pframe)))
 			return;
 
 		ptable->func(padapter, precv_frame);
@@ -439,7 +438,6 @@ void mgt_dispatcher(struct adapter *padapter, union recv_frame *precv_frame)
 	int index;
 	struct mlme_handler *ptable;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
-	u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 	u8 *pframe = precv_frame->u.hdr.rx_data;
 	struct sta_info *psta = rtw_get_stainfo(&padapter->stapriv, GetAddr2Ptr(pframe));
 	struct dvobj_priv *psdpriv = padapter->dvobj;
@@ -450,7 +448,7 @@ void mgt_dispatcher(struct adapter *padapter, union recv_frame *precv_frame)
 
 	/* receive the frames that ra(a1) is my address or ra(a1) is bc address. */
 	if (memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN) &&
-		memcmp(GetAddr1Ptr(pframe), bc_addr, ETH_ALEN)) {
+	    !is_broadcast_ether_addr(GetAddr1Ptr(pframe))) {
 		return;
 	}
 
diff --git a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
index ba39c8b1a9ae..7fac9ca3e9a0 100644
--- a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
+++ b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
@@ -1779,10 +1779,9 @@ void adaptive_early_32k(struct mlme_ext_priv *pmlmeext, u8 *pframe, uint len)
 void rtw_alloc_macid(struct adapter *padapter, struct sta_info *psta)
 {
 	int i;
-	u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 	struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter);
 
-	if (!memcmp(psta->hwaddr, bc_addr, ETH_ALEN))
+	if (is_broadcast_ether_addr(psta->hwaddr))
 		return;
 
 	if (!memcmp(psta->hwaddr, myid(&padapter->eeprompriv), ETH_ALEN)) {
@@ -1807,10 +1806,9 @@ void rtw_alloc_macid(struct adapter *padapter, struct sta_info *psta)
 
 void rtw_release_macid(struct adapter *padapter, struct sta_info *psta)
 {
-	u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 	struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter);
 
-	if (!memcmp(psta->hwaddr, bc_addr, ETH_ALEN))
+	if (is_broadcast_ether_addr(psta->hwaddr))
 		return;
 
 	if (!memcmp(psta->hwaddr, myid(&padapter->eeprompriv), ETH_ALEN))