USEC_PER_SEC       33 include/linux/pm_qos.h #define PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE	(2000 * USEC_PER_SEC)
USEC_PER_SEC       34 include/linux/pm_qos.h #define PM_QOS_NETWORK_LAT_DEFAULT_VALUE	(2000 * USEC_PER_SEC)
USEC_PER_SEC      430 include/linux/skbuff.h 	    delta_jiffies >= (INT_MAX / (USEC_PER_SEC / HZ)))
USEC_PER_SEC      109 include/linux/time.h 	if (tv->tv_usec < 0 || tv->tv_usec >= USEC_PER_SEC)