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| author | Theodore Ts'o <tytso@mit.edu> | 2012-07-14 20:27:52 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2012-07-19 10:38:32 -0400 |
| commit | c5857ccf293968348e5eb4ebedc68074de3dcda6 (patch) | |
| tree | 33b74f247459881a9dfdaafd6eb2756c3894521a /kernel/irq | |
| parent | 27130f0cc3ab97560384da437e4621fc4e94f21c (diff) | |
| download | linux-c5857ccf293968348e5eb4ebedc68074de3dcda6.tar.gz linux-c5857ccf293968348e5eb4ebedc68074de3dcda6.tar.bz2 linux-c5857ccf293968348e5eb4ebedc68074de3dcda6.zip | |
random: remove rand_initialize_irq()
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>
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/manage.c | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 8c548232ba39..5e42eb119677 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -893,22 +893,6 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) return -ENOSYS; if (!try_module_get(desc->owner)) return -ENODEV; - /* - * Some drivers like serial.c use request_irq() heavily, - * so we have to be careful not to interfere with a - * running system. - */ - if (new->flags & IRQF_SAMPLE_RANDOM) { - /* - * This function might sleep, we want to call it first, - * outside of the atomic block. - * Yes, this might clear the entropy pool if the wrong - * driver is attempted to be loaded, without actually - * installing a new handler, but is this really a problem, - * only the sysadmin is able to do this. - */ - rand_initialize_irq(irq); - } /* * Check whether the interrupt nests into another interrupt @@ -1354,7 +1338,6 @@ EXPORT_SYMBOL(free_irq); * Flags: * * IRQF_SHARED Interrupt is shared - * IRQF_SAMPLE_RANDOM The interrupt can be used for entropy * IRQF_TRIGGER_* Specify active edge(s) or level * */ |