openwrtv3/package/kernel/broadcom-wl/patches/008-fix_virtual_interfaces.patch

--- a/driver/wl_linux.c
+++ b/driver/wl_linux.c
@@ -1545,6 +1545,8 @@ wl_add_if(wl_info_t *wl, struct wlc_if* 
 		return NULL;
 	}
 
+	wl_if_setup(wlif->dev);
+
 	sprintf(wlif->dev->name, "%s%d.%d", devname, wl->pub->unit, wlif->subunit);
 	if (remote)
 		bcopy(remote, &wlif->remote, ETHER_ADDR_LEN);