il_usecs_to_beacons
il_usecs_to_beacons(il,
il_usecs_to_beacons(il, switch_time_in_usec,
EXPORT_SYMBOL(il_usecs_to_beacons);
u32 il_usecs_to_beacons(struct il_priv *il, u32 usec, u32 beacon_interval);