--- zzzz-none-000/linux-3.10.107/drivers/net/wireless/hostap/hostap_80211_tx.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/net/wireless/hostap/hostap_80211_tx.c	2021-02-04 17:41:59.000000000 +0000
@@ -1,5 +1,6 @@
 #include <linux/slab.h>
 #include <linux/export.h>
+#include <linux/etherdevice.h>
 
 #include "hostap_80211.h"
 #include "hostap_common.h"
@@ -103,8 +104,7 @@
 			return NETDEV_TX_OK;
 		} else if (local->iw_mode == IW_MODE_INFRA &&
 			   (local->wds_type & HOSTAP_WDS_AP_CLIENT) &&
-			   memcmp(skb->data + ETH_ALEN, dev->dev_addr,
-				  ETH_ALEN) != 0) {
+			   !ether_addr_equal(skb->data + ETH_ALEN, dev->dev_addr)) {
 			/* AP client mode: send frames with foreign src addr
 			 * using 4-addr WDS frames */
 			use_wds = WDS_COMPLIANT_FRAME;
@@ -174,8 +174,8 @@
 		/* send broadcast and multicast frames to broadcast RA, if
 		 * configured; otherwise, use unicast RA of the WDS link */
 		if ((local->wds_type & HOSTAP_WDS_BROADCAST_RA) &&
-		    skb->data[0] & 0x01)
-			memset(&hdr.addr1, 0xff, ETH_ALEN);
+		    is_multicast_ether_addr(skb->data))
+			eth_broadcast_addr(hdr.addr1);
 		else if (iface->type == HOSTAP_INTERFACE_WDS)
 			memcpy(&hdr.addr1, iface->u.wds.remote_addr,
 			       ETH_ALEN);