557 struct fast_pool {  struct
570 static void fast_mix(struct fast_pool *f, const void *in, int nbytes)  in fast_mix()  argument
745 static DEFINE_PER_CPU(struct fast_pool, irq_randomness);
750 	struct fast_pool	*fast_pool = &__get_cpu_var(irq_randomness);  in add_interrupt_randomness()  local
763 	fast_mix(fast_pool, input, sizeof(input));  in add_interrupt_randomness()
765 	if ((fast_pool->count & 1023) &&  in add_interrupt_randomness()
766 	    !time_after(now, fast_pool->last + HZ))  in add_interrupt_randomness()
769 	fast_pool->last = now;  in add_interrupt_randomness()
772 	__mix_pool_bytes(r, &fast_pool->pool, sizeof(fast_pool->pool), NULL);  in add_interrupt_randomness()
780 			if (fast_pool->last_timer_intr)  in add_interrupt_randomness()
782 			fast_pool->last_timer_intr = 1;  in add_interrupt_randomness()
784 			fast_pool->last_timer_intr = 0;  in add_interrupt_randomness()