genirq: Provide config option to disable deprecated code
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>
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 0c83cbd..82ed823 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -155,6 +155,7 @@
*/
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 @@
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_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 @@
#endif
};
};
+#endif
+
struct timer_rand_state *timer_rand_state;
unsigned int *kstat_irqs;
irq_flow_handler_t handle_irq;