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-rw-r--r--kernel/irq/manage.c17
1 files changed, 0 insertions, 17 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 8c54823..5e42eb1 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
*
*/