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genirq: Provide config option to disable deprecated code

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This option covers now the old chip functions and the irq_desc data
fields which are moving to struct irq_data. More stuff will follow.

Pretty handy for testing a conversion, whether something broke or not.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner 2010-10-01 15:17:14 +02:00
parent 21e2b8c62c
commit bd15141226
6 changed files with 39 additions and 6 deletions
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8
include/linux/irq.h
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@ -155,6 +155,7 @@ struct irq_data {
*/
struct irq_chip {
const char *name;
#ifndef CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED
unsigned int (*startup)(unsigned int irq);
void (*shutdown)(unsigned int irq);
void (*enable)(unsigned int irq);
@ -175,7 +176,7 @@ struct irq_chip {
void (*bus_lock)(unsigned int irq);
void (*bus_sync_unlock)(unsigned int irq);
#endif
unsigned int (*irq_startup)(struct irq_data *data);
void (*irq_shutdown)(struct irq_data *data);
void (*irq_enable)(struct irq_data *data);
@ -225,6 +226,9 @@ struct irq_2_iommu;
*/
struct irq_desc {
#ifdef CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED
struct irq_data irq_data;
#else
/*
* This union will go away, once we fixed the direct access to
* irq_desc all over the place. The direct fields are a 1:1
@ -247,6 +251,8 @@ struct irq_desc {
#endif
};
};
#endif
struct timer_rand_state *timer_rand_state;
unsigned int *kstat_irqs;
irq_flow_handler_t handle_irq;