Move hostap driver specific workaround into the driver wrapper

src/ap/hostapd.c

@@ -324,6 +324,7 @@ static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd)
 static int hostapd_flush_old_stations(struct hostapd_data *hapd)
 {
 	int ret = 0;
+	u8 addr[ETH_ALEN];
 
 	if (hostapd_drv_none(hapd) || hapd->drv_priv == NULL)
 		return 0;
@@ -334,17 +335,8 @@ static int hostapd_flush_old_stations(struct hostapd_data *hapd)
 		ret = -1;
 	}
 	wpa_printf(MSG_DEBUG, "Deauthenticate all stations");
-
-	/* New Prism2.5/3 STA firmware versions seem to have issues with this
-	 * broadcast deauth frame. This gets the firmware in odd state where
-	 * nothing works correctly, so let's skip sending this for the hostap
-	 * driver. */
-	if (hapd->driver && os_strcmp(hapd->driver->name, "hostap") != 0) {
-		u8 addr[ETH_ALEN];
-		os_memset(addr, 0xff, ETH_ALEN);
-		hostapd_drv_sta_deauth(hapd, addr,
-				       WLAN_REASON_PREV_AUTH_NOT_VALID);
-	}
+	os_memset(addr, 0xff, ETH_ALEN);
+	hostapd_drv_sta_deauth(hapd, addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
 
 	return ret;
 }

src/drivers/driver_hostap.c

@@ -1035,6 +1035,16 @@ static int hostap_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
 	struct hostap_driver_data *drv = priv;
 	struct ieee80211_mgmt mgmt;
 
+	if (is_broadcast_ether_addr(addr)) {
+		/*
+		 * New Prism2.5/3 STA firmware versions seem to have issues
+		 * with this broadcast deauth frame. This gets the firmware in
+		 * odd state where nothing works correctly, so let's skip
+		 * sending this for the hostap driver.
+		 */
+		return 0;
+	}
+
 	memset(&mgmt, 0, sizeof(mgmt));
 	mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 					  WLAN_FC_STYPE_DEAUTH);