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random: remove rand_initialize_irq()

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With the new interrupt sampling system, we are no longer using the
timer_rand_state structure in the irq descriptor, so we can stop
initializing it now.

[ Merged in fixes from Sedat to find some last missing references to
  rand_initialize_irq() ]

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
This commit is contained in:
Theodore Ts'o 2012-07-14 20:27:52 -04:00
parent 27130f0cc3
commit c5857ccf29
6 changed files with 0 additions and 79 deletions
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55
drivers/char/random.c
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@ -634,43 +634,6 @@ struct timer_rand_state {
unsigned dont_count_entropy:1;
};
#ifndef CONFIG_GENERIC_HARDIRQS
static struct timer_rand_state *irq_timer_state[NR_IRQS];
static struct timer_rand_state *get_timer_rand_state(unsigned int irq)
{
return irq_timer_state[irq];
}
static void set_timer_rand_state(unsigned int irq,
struct timer_rand_state *state)
{
irq_timer_state[irq] = state;
}
#else
static struct timer_rand_state *get_timer_rand_state(unsigned int irq)
{
struct irq_desc *desc;
desc = irq_to_desc(irq);
return desc->timer_rand_state;
}
static void set_timer_rand_state(unsigned int irq,
struct timer_rand_state *state)
{
struct irq_desc *desc;
desc = irq_to_desc(irq);
desc->timer_rand_state = state;
}
#endif
/*
* Add device- or boot-specific data to the input and nonblocking
* pools to help initialize them to unique values.
@ -1133,24 +1096,6 @@ static int rand_initialize(void)
}
module_init(rand_initialize);
void rand_initialize_irq(int irq)
{
struct timer_rand_state *state;
state = get_timer_rand_state(irq);
if (state)
return;
/*
* If kzalloc returns null, we just won't use that entropy
* source.
*/
state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL);
if (state)
set_timer_rand_state(irq, state);
}
#ifdef CONFIG_BLOCK
void rand_initialize_disk(struct gendisk *disk)
{