extern void dhd_os_sdlock_eventq(dhd_pub_t * pub);
extern void dhd_os_sdunlock_eventq(dhd_pub_t * pub);
extern bool dhd_os_check_hang(dhd_pub_t *dhdp, int ifidx, int ret);
+extern int net_os_send_hang_message(struct net_device *dev);
#ifdef PNO_SUPPORT
extern int dhd_pno_enable(dhd_pub_t *dhd, int pfn_enabled);