diff options
| author | merge <null@invalid> | 2009-01-22 13:55:32 +0000 |
|---|---|---|
| committer | Andy Green <agreen@octopus.localdomain> | 2009-01-22 13:55:32 +0000 |
| commit | aa6f5ffbdba45aa8e19e5048648fc6c7b25376d3 (patch) | |
| tree | fbb786d0ac6f8a774fd834e9ce951197e60fbffa /drivers/char/random.c | |
| parent | f2d78193eae5dccd3d588d2c8ea0866efc368332 (diff) | |
MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141
pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040
stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch
mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage:
From: Andy Green <andy@openmoko.com>
fix-stray-endmenu.patch
Signed-off-by: Andy Green <andy@openmoko.com>
Diffstat (limited to 'drivers/char/random.c')
| -rw-r--r-- | drivers/char/random.c | 41 |
1 files changed, 28 insertions, 13 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index 675076f5fca..7c13581ca9c 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -407,7 +407,7 @@ struct entropy_store { /* read-write data: */ spinlock_t lock; unsigned add_ptr; - int entropy_count; /* Must at no time exceed ->POOLBITS! */ + int entropy_count; int input_rotate; }; @@ -558,24 +558,43 @@ struct timer_rand_state { unsigned dont_count_entropy:1; }; +#ifndef CONFIG_SPARSE_IRQ + static struct timer_rand_state *irq_timer_state[NR_IRQS]; static struct timer_rand_state *get_timer_rand_state(unsigned int irq) { - if (irq >= nr_irqs) - return NULL; - return irq_timer_state[irq]; } -static void set_timer_rand_state(unsigned int irq, struct timer_rand_state *state) +static void set_timer_rand_state(unsigned int irq, + struct timer_rand_state *state) { - if (irq >= nr_irqs) - return; - 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 + static struct timer_rand_state input_timer_state; /* @@ -748,11 +767,10 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min, { unsigned long flags; - BUG_ON(r->entropy_count > r->poolinfo->POOLBITS); - /* Hold lock while accounting */ spin_lock_irqsave(&r->lock, flags); + BUG_ON(r->entropy_count > r->poolinfo->POOLBITS); DEBUG_ENT("trying to extract %d bits from %s\n", nbytes * 8, r->name); @@ -933,9 +951,6 @@ void rand_initialize_irq(int irq) { struct timer_rand_state *state; - if (irq >= nr_irqs) - return; - state = get_timer_rand_state(irq); if (state) |